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nl80211: Reduce debug on Probe Request frames
[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
BG		 186static void nl80211_global_deinit(void *priv);
187
c5121837 188struct i802_bss {
a2e40bb6 189 struct wpa_driver_nl80211_data *drv;
c5121837 190 struct i802_bss *next;
b4fd6fab 191 int ifindex;
a2e40bb6 192 char ifname[IFNAMSIZ + 1];
e17a2477 193 char brname[IFNAMSIZ];
c5121837 194 unsigned int beacon_set:1;
e17a2477
JM		 195 unsigned int added_if_into_bridge:1;
196 unsigned int added_bridge:1;
873d0fcf 197 unsigned int in_deinit:1;
221a59c9 198
341eebee
JB		 199 u8 addr[ETH_ALEN];
200
e4fb2167
JB		 201 int freq;
202
a5e1eb20 203 void *ctx;
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 222 struct wpa_driver_capa capa;
8cd6b7bc
JB		 223 u8 *extended_capa, *extended_capa_mask;
224 unsigned int extended_capa_len;
c2a04078 225 int has_capability;
c2a04078 226
3f5285e8
JM		 227 int operstate;
228
3f5285e8
JM		 229 int scan_complete_events;
230
1afc986d 231 struct nl_cb *nl_cb;
1c873584 232
e6b8efeb 233 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 234 u8 bssid[ETH_ALEN];
235 int associated;
fd05d64e
JM		 236 u8 ssid[32];
237 size_t ssid_len;
b1f625e0
EP		 238 enum nl80211_iftype nlmode;
239 enum nl80211_iftype ap_scan_as_station;
4832ecd7 240 unsigned int assoc_freq;
d2440ba0 241
0915d02c
JM		 242 int monitor_sock;
243 int monitor_ifidx;
3fd1cefb 244 int monitor_refcount;
7da3abe7 245
b3af99d2 246 unsigned int disabled_11b_rates:1;
55777702 247 unsigned int pending_remain_on_chan:1;
dac12351 248 unsigned int in_interface_list:1;
61cbe2ff 249 unsigned int device_ap_sme:1;
39718852 250 unsigned int poll_command_supported:1;
32ab4855 251 unsigned int data_tx_status:1;
536fd62d
JM		 252 unsigned int scan_for_auth:1;
253 unsigned int retry_auth:1;
a11241fa 254 unsigned int use_monitor:1;
a8c5b43a 255 unsigned int ignore_next_local_disconnect:1;
55777702
JM		 256
257 u64 remain_on_chan_cookie;
58f6fbe0 258 u64 send_action_cookie;
c5121837 259
5582a5d1
JB		 260 unsigned int last_mgmt_freq;
261
3812464c
JM		 262 struct wpa_driver_scan_filter *filter_ssids;
263 size_t num_filter_ssids;
264
a2e40bb6
FF		 265 struct i802_bss first_bss;
266
d12dab4c 267 int eapol_tx_sock;
f10bfc9a 268
c5121837 269#ifdef HOSTAPD
c5121837 270 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 271
272 int default_if_indices[16];
273 int *if_indices;
274 int num_if_indices;
275
c5121837
JM		 276 int last_freq;
277 int last_freq_ht;
c5121837 278#endif /* HOSTAPD */
536fd62d
JM		 279
280 /* From failed authentication command */
281 int auth_freq;
282 u8 auth_bssid_[ETH_ALEN];
283 u8 auth_ssid[32];
284 size_t auth_ssid_len;
285 int auth_alg;
286 u8 *auth_ie;
287 size_t auth_ie_len;
288 u8 auth_wep_key[4][16];
289 size_t auth_wep_key_len[4];
290 int auth_wep_tx_keyidx;
291 int auth_local_state_change;
292 int auth_p2p;
3f5285e8
JM		 293};
294
295
9ebce9c5 296static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
3f5285e8
JM		 297static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
298 void *timeout_ctx);
b1f625e0
EP		 299static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
300 enum nl80211_iftype nlmode);
362f781e 301static int
7524cfb1 302wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 303static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 304 const u8 *addr, int cmd, u16 reason_code,
305 int local_state_change);
460456f8
JM		 306static void nl80211_remove_monitor_interface(
307 struct wpa_driver_nl80211_data *drv);
88df0ef7 308static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 309 unsigned int freq, unsigned int wait,
b106173a 310 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 311 int no_cck, int no_ack, int offchanok);
9ebce9c5
JM		 312static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
313 int report);
216eede8
DS		 314#ifdef ANDROID
315static int android_pno_start(struct i802_bss *bss,
316 struct wpa_driver_scan_params *params);
317static int android_pno_stop(struct i802_bss *bss);
318#endif /* ANDROID */
0915d02c 319
072ad14c 320#ifdef HOSTAPD
2135f224
JM		 321static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
322static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 323static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
9ebce9c5 324static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
fbbfcbac
FF		 325 enum wpa_driver_if_type type,
326 const char *ifname);
37eb8da9 327#else /* HOSTAPD */
bd2df892
JM		 328static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
329{
330}
331
332static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
333{
334}
335
336static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 337{
338 return 0;
339}
072ad14c
JM		 340#endif /* HOSTAPD */
341
9ebce9c5
JM		 342static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
343 struct hostapd_freq_params *freq);
4e5cb1a3
JM		 344static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
345 int ifindex, int disabled);
504e905c 346
21bdbe38 347static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
536fd62d
JM		 348static int wpa_driver_nl80211_authenticate_retry(
349 struct wpa_driver_nl80211_data *drv);
21bdbe38 350
3f5285e8 351
b1f625e0
EP		 352static int is_ap_interface(enum nl80211_iftype nlmode)
353{
354 return (nlmode == NL80211_IFTYPE_AP ||
355 nlmode == NL80211_IFTYPE_P2P_GO);
356}
357
358
359static int is_sta_interface(enum nl80211_iftype nlmode)
360{
361 return (nlmode == NL80211_IFTYPE_STATION ||
362 nlmode == NL80211_IFTYPE_P2P_CLIENT);
363}
364
365
b3af99d2
JM		 366static int is_p2p_interface(enum nl80211_iftype nlmode)
367{
368 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
369 nlmode == NL80211_IFTYPE_P2P_GO);
370}
371
372
f5a8d422
JM		 373struct nl80211_bss_info_arg {
374 struct wpa_driver_nl80211_data *drv;
375 struct wpa_scan_results *res;
376 unsigned int assoc_freq;
20f5a4c2 377 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 378};
379
380static int bss_info_handler(struct nl_msg *msg, void *arg);
381
382
6241fcb1
JM		 383/* nl80211 code */
384static int ack_handler(struct nl_msg *msg, void *arg)
385{
386 int *err = arg;
387 *err = 0;
388 return NL_STOP;
389}
390
391static int finish_handler(struct nl_msg *msg, void *arg)
392{
8e8df255
JM		 393 int *ret = arg;
394 *ret = 0;
6241fcb1
JM		 395 return NL_SKIP;
396}
397
398static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
399 void *arg)
400{
401 int *ret = arg;
402 *ret = err->error;
403 return NL_SKIP;
404}
405
5b7b85f6
JM		 406
407static int no_seq_check(struct nl_msg *msg, void *arg)
408{
409 return NL_OK;
410}
411
412
d6c9aab8 413static int send_and_recv(struct nl80211_global *global,
58f6fbe0
JM		 414 struct nl_handle *nl_handle, struct nl_msg *msg,
415 int (*valid_handler)(struct nl_msg *, void *),
416 void *valid_data)
6241fcb1
JM		 417{
418 struct nl_cb *cb;
419 int err = -ENOMEM;
420
d6c9aab8 421 cb = nl_cb_clone(global->nl_cb);
6241fcb1
JM		 422 if (!cb)
423 goto out;
424
58f6fbe0 425 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 426 if (err < 0)
427 goto out;
428
429 err = 1;
430
431 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 432 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 433 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
434
435 if (valid_handler)
436 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
437 valid_handler, valid_data);
438
439 while (err > 0)
58f6fbe0 440 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 441 out:
442 nl_cb_put(cb);
443 nlmsg_free(msg);
444 return err;
445}
446
447
d6c9aab8
JB		 448static int send_and_recv_msgs_global(struct nl80211_global *global,
449 struct nl_msg *msg,
450 int (*valid_handler)(struct nl_msg *, void *),
451 void *valid_data)
452{
481234cf 453 return send_and_recv(global, global->nl, msg, valid_handler,
d6c9aab8
JB		 454 valid_data);
455}
456
457
58f6fbe0
JM		 458static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
459 struct nl_msg *msg,
460 int (*valid_handler)(struct nl_msg *, void *),
461 void *valid_data)
462{
481234cf 463 return send_and_recv(drv->global, drv->global->nl, msg,
d6c9aab8 464 valid_handler, valid_data);
58f6fbe0
JM		 465}
466
467
97865538
JM		 468struct family_data {
469 const char *group;
470 int id;
471};
472
473
474static int family_handler(struct nl_msg *msg, void *arg)
475{
476 struct family_data *res = arg;
477 struct nlattr *tb[CTRL_ATTR_MAX + 1];
478 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
479 struct nlattr *mcgrp;
480 int i;
481
482 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
483 genlmsg_attrlen(gnlh, 0), NULL);
484 if (!tb[CTRL_ATTR_MCAST_GROUPS])
485 return NL_SKIP;
486
487 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
488 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
489 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
490 nla_len(mcgrp), NULL);
491 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
492 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
493 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
494 res->group,
495 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
496 continue;
497 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
498 break;
499 };
500
501 return NL_SKIP;
502}
503
504
d6c9aab8 505static int nl_get_multicast_id(struct nl80211_global *global,
97865538
JM		 506 const char *family, const char *group)
507{
508 struct nl_msg *msg;
509 int ret = -1;
510 struct family_data res = { group, -ENOENT };
511
512 msg = nlmsg_alloc();
513 if (!msg)
514 return -ENOMEM;
481234cf 515 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
97865538
JM		 516 0, 0, CTRL_CMD_GETFAMILY, 0);
517 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
518
d6c9aab8 519 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
97865538
JM		 520 msg = NULL;
521 if (ret == 0)
522 ret = res.id;
523
524nla_put_failure:
525 nlmsg_free(msg);
526 return ret;
527}
528
529
9fb04070
JM		 530static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
531 struct nl_msg *msg, int flags, uint8_t cmd)
532{
335d42b1 533 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 534 0, flags, cmd, 0);
9fb04070
JM		 535}
536
537
e32ad281
JB		 538struct wiphy_idx_data {
539 int wiphy_idx;
540};
541
542
543static int netdev_info_handler(struct nl_msg *msg, void *arg)
544{
545 struct nlattr *tb[NL80211_ATTR_MAX + 1];
546 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
547 struct wiphy_idx_data *info = arg;
548
549 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
550 genlmsg_attrlen(gnlh, 0), NULL);
551
552 if (tb[NL80211_ATTR_WIPHY])
553 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
554
555 return NL_SKIP;
556}
557
558
559static int nl80211_get_wiphy_index(struct i802_bss *bss)
560{
561 struct nl_msg *msg;
562 struct wiphy_idx_data data = {
563 .wiphy_idx = -1,
564 };
565
566 msg = nlmsg_alloc();
567 if (!msg)
568 return -1;
569
570 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
571
572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
573
574 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
575 return data.wiphy_idx;
576 msg = NULL;
577nla_put_failure:
578 nlmsg_free(msg);
579 return -1;
580}
581
582
583static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
584 struct nl80211_wiphy_data *w)
585{
586 struct nl_msg *msg;
587 int ret = -1;
588
589 msg = nlmsg_alloc();
590 if (!msg)
591 return -1;
592
593 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
594
595 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
596
481234cf 597 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
e32ad281
JB		 598 msg = NULL;
599 if (ret) {
600 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
601 "failed: ret=%d (%s)",
602 ret, strerror(-ret));
603 goto nla_put_failure;
604 }
605 ret = 0;
606nla_put_failure:
607 nlmsg_free(msg);
608 return ret;
609}
610
611
612static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
613{
614 struct nl80211_wiphy_data *w = eloop_ctx;
615
ee9fc67a 616 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
e32ad281
JB		 617
618 nl_recvmsgs(handle, w->nl_cb);
619}
620
621
622static int process_beacon_event(struct nl_msg *msg, void *arg)
623{
624 struct nl80211_wiphy_data *w = arg;
625 struct wpa_driver_nl80211_data *drv;
626 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
627 struct nlattr *tb[NL80211_ATTR_MAX + 1];
628 union wpa_event_data event;
629
630 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
631 genlmsg_attrlen(gnlh, 0), NULL);
632
633 if (gnlh->cmd != NL80211_CMD_FRAME) {
634 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
635 gnlh->cmd);
636 return NL_SKIP;
637 }
638
639 if (!tb[NL80211_ATTR_FRAME])
640 return NL_SKIP;
641
642 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
643 wiphy_list) {
644 os_memset(&event, 0, sizeof(event));
645 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
646 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
647 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
648 }
649
650 return NL_SKIP;
651}
652
653
654static struct nl80211_wiphy_data *
655nl80211_get_wiphy_data_ap(struct i802_bss *bss)
656{
657 static DEFINE_DL_LIST(nl80211_wiphys);
658 struct nl80211_wiphy_data *w;
659 int wiphy_idx, found = 0;
660 struct i802_bss *tmp_bss;
661
662 if (bss->wiphy_data != NULL)
663 return bss->wiphy_data;
664
665 wiphy_idx = nl80211_get_wiphy_index(bss);
666
667 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
668 if (w->wiphy_idx == wiphy_idx)
669 goto add;
670 }
671
672 /* alloc new one */
673 w = os_zalloc(sizeof(*w));
674 if (w == NULL)
675 return NULL;
676 w->wiphy_idx = wiphy_idx;
677 dl_list_init(&w->bsss);
678 dl_list_init(&w->drvs);
679
680 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
681 if (!w->nl_cb) {
682 os_free(w);
683 return NULL;
684 }
685 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
686 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
687 w);
688
481234cf
JM		 689 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
690 "wiphy beacons");
691 if (w->nl_beacons == NULL) {
e32ad281
JB		 692 os_free(w);
693 return NULL;
694 }
695
696 if (nl80211_register_beacons(bss->drv, w)) {
697 nl_destroy_handles(&w->nl_beacons);
698 os_free(w);
699 return NULL;
700 }
701
481234cf
JM		 702 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
703 nl80211_recv_beacons, w, w->nl_beacons);
e32ad281
JB		 704
705 dl_list_add(&nl80211_wiphys, &w->list);
706
707add:
708 /* drv entry for this bss already there? */
709 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
710 if (tmp_bss->drv == bss->drv) {
711 found = 1;
712 break;
713 }
714 }
715 /* if not add it */
716 if (!found)
717 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
718
719 dl_list_add(&w->bsss, &bss->wiphy_list);
720 bss->wiphy_data = w;
721 return w;
722}
723
724
725static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
726{
727 struct nl80211_wiphy_data *w = bss->wiphy_data;
728 struct i802_bss *tmp_bss;
729 int found = 0;
730
731 if (w == NULL)
732 return;
733 bss->wiphy_data = NULL;
734 dl_list_del(&bss->wiphy_list);
735
736 /* still any for this drv present? */
737 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
738 if (tmp_bss->drv == bss->drv) {
739 found = 1;
740 break;
741 }
742 }
743 /* if not remove it */
744 if (!found)
745 dl_list_del(&bss->drv->wiphy_list);
746
747 if (!dl_list_empty(&w->bsss))
748 return;
749
481234cf 750 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
e32ad281
JB		 751
752 nl_cb_put(w->nl_cb);
753 nl_destroy_handles(&w->nl_beacons);
754 dl_list_del(&w->list);
755 os_free(w);
756}
757
758
3f5285e8
JM		 759static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
760{
a2e40bb6
FF		 761 struct i802_bss *bss = priv;
762 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 763 if (!drv->associated)
764 return -1;
765 os_memcpy(bssid, drv->bssid, ETH_ALEN);
766 return 0;
3f5285e8
JM		 767}
768
769
3f5285e8
JM		 770static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
771{
a2e40bb6
FF		 772 struct i802_bss *bss = priv;
773 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 774 if (!drv->associated)
775 return -1;
776 os_memcpy(ssid, drv->ssid, drv->ssid_len);
777 return drv->ssid_len;
3f5285e8
JM		 778}
779
780
7524cfb1 781static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 782 char *buf, size_t len, int del)
3f5285e8
JM		 783{
784 union wpa_event_data event;
785
786 os_memset(&event, 0, sizeof(event));
787 if (len > sizeof(event.interface_status.ifname))
788 len = sizeof(event.interface_status.ifname) - 1;
789 os_memcpy(event.interface_status.ifname, buf, len);
790 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
791 EVENT_INTERFACE_ADDED;
792
793 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
794 del ? "DEL" : "NEW",
795 event.interface_status.ifname,
796 del ? "removed" : "added");
797
a2e40bb6 798 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
d1f4942b
JM		 799 if (del) {
800 if (drv->if_removed) {
801 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
802 "already set - ignore event");
803 return;
804 }
7524cfb1 805 drv->if_removed = 1;
d1f4942b
JM		 806 } else {
807 if (if_nametoindex(drv->first_bss.ifname) == 0) {
808 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
809 "does not exist - ignore "
810 "RTM_NEWLINK",
811 drv->first_bss.ifname);
812 return;
813 }
814 if (!drv->if_removed) {
815 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
816 "already cleared - ignore event");
817 return;
818 }
7524cfb1 819 drv->if_removed = 0;
d1f4942b 820 }
7524cfb1
JM		 821 }
822
08063178 823 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 824}
825
826
7524cfb1 827static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 828 u8 *buf, size_t len)
7524cfb1 829{
62d680c3 830 int attrlen, rta_len;
7524cfb1
JM		 831 struct rtattr *attr;
832
62d680c3
JM		 833 attrlen = len;
834 attr = (struct rtattr *) buf;
7524cfb1
JM		 835
836 rta_len = RTA_ALIGN(sizeof(struct rtattr));
837 while (RTA_OK(attr, attrlen)) {
838 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 839 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 840 == 0)
841 return 1;
842 else
843 break;
844 }
845 attr = RTA_NEXT(attr, attrlen);
846 }
847
848 return 0;
849}
850
851
852static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 853 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 854{
855 if (drv->ifindex == ifindex)
856 return 1;
857
62d680c3 858 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 859 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 860 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
861 "interface");
862 wpa_driver_nl80211_finish_drv_init(drv);
863 return 1;
864 }
865
866 return 0;
867}
868
869
36d84860
BG		 870static struct wpa_driver_nl80211_data *
871nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
872{
873 struct wpa_driver_nl80211_data *drv;
874 dl_list_for_each(drv, &global->interfaces,
875 struct wpa_driver_nl80211_data, list) {
876 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
877 have_ifidx(drv, idx))
878 return drv;
879 }
880 return NULL;
881}
882
883
62d680c3
JM		 884static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
885 struct ifinfomsg *ifi,
886 u8 *buf, size_t len)
3f5285e8 887{
36d84860
BG		 888 struct nl80211_global *global = ctx;
889 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 890 int attrlen, rta_len;
891 struct rtattr *attr;
97cfcf64 892 u32 brid = 0;
aef85ba2 893 char namebuf[IFNAMSIZ];
3f5285e8 894
36d84860
BG		 895 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
896 if (!drv) {
97cfcf64
B		 897 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
898 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 899 return;
900 }
901
902 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
903 "(%s%s%s%s)",
904 drv->operstate, ifi->ifi_flags,
905 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
906 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
907 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
908 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 909
910 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
JM		 911 if (if_indextoname(ifi->ifi_index, namebuf) &&
912 linux_iface_up(drv->global->ioctl_sock,
913 drv->first_bss.ifname) > 0) {
914 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
915 "event since interface %s is up", namebuf);
916 return;
917 }
a63063b4 918 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 919 if (drv->ignore_if_down_event) {
920 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
921 "event generated by mode change");
922 drv->ignore_if_down_event = 0;
923 } else {
924 drv->if_disabled = 1;
925 wpa_supplicant_event(drv->ctx,
926 EVENT_INTERFACE_DISABLED, NULL);
927 }
a63063b4
JM		 928 }
929
930 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 931 if (if_indextoname(ifi->ifi_index, namebuf) &&
932 linux_iface_up(drv->global->ioctl_sock,
933 drv->first_bss.ifname) == 0) {
934 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
935 "event since interface %s is down",
936 namebuf);
d1f4942b
JM		 937 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
938 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
939 "event since interface %s does not exist",
940 drv->first_bss.ifname);
941 } else if (drv->if_removed) {
942 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
943 "event since interface %s is marked "
944 "removed", drv->first_bss.ifname);
aef85ba2
JM		 945 } else {
946 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
947 drv->if_disabled = 0;
948 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
949 NULL);
950 }
a63063b4
JM		 951 }
952
3f5285e8
JM		 953 /*
954 * Some drivers send the association event before the operup event--in
955 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
956 * fails. This will hit us when wpa_supplicant does not need to do
957 * IEEE 802.1X authentication
958 */
959 if (drv->operstate == 1 &&
960 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
961 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 962 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 963 -1, IF_OPER_UP);
3f5285e8 964
62d680c3
JM		 965 attrlen = len;
966 attr = (struct rtattr *) buf;
3f5285e8
JM		 967 rta_len = RTA_ALIGN(sizeof(struct rtattr));
968 while (RTA_OK(attr, attrlen)) {
d8816397 969 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 970 wpa_driver_nl80211_event_link(
08063178 971 drv,
7524cfb1
JM		 972 ((char *) attr) + rta_len,
973 attr->rta_len - rta_len, 0);
97cfcf64
B		 974 } else if (attr->rta_type == IFLA_MASTER)
975 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 976 attr = RTA_NEXT(attr, attrlen);
977 }
97cfcf64
B		 978
979 if (ifi->ifi_family == AF_BRIDGE && brid) {
980 /* device has been added to bridge */
97cfcf64
B		 981 if_indextoname(brid, namebuf);
982 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
983 brid, namebuf);
984 add_ifidx(drv, brid);
985 }
3f5285e8
JM		 986}
987
988
62d680c3
JM		 989static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
990 struct ifinfomsg *ifi,
991 u8 *buf, size_t len)
3f5285e8 992{
36d84860
BG		 993 struct nl80211_global *global = ctx;
994 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 995 int attrlen, rta_len;
996 struct rtattr *attr;
97cfcf64 997 u32 brid = 0;
3f5285e8 998
36d84860
BG		 999 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1000 if (!drv) {
1001 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
1002 "foreign ifindex %d", ifi->ifi_index);
1003 return;
1004 }
1005
62d680c3
JM		 1006 attrlen = len;
1007 attr = (struct rtattr *) buf;
3f5285e8
JM		 1008
1009 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1010 while (RTA_OK(attr, attrlen)) {
1011 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1012 wpa_driver_nl80211_event_link(
08063178 1013 drv,
7524cfb1
JM		 1014 ((char *) attr) + rta_len,
1015 attr->rta_len - rta_len, 1);
97cfcf64
B		 1016 } else if (attr->rta_type == IFLA_MASTER)
1017 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1018 attr = RTA_NEXT(attr, attrlen);
1019 }
97cfcf64
B		 1020
1021 if (ifi->ifi_family == AF_BRIDGE && brid) {
1022 /* device has been removed from bridge */
1023 char namebuf[IFNAMSIZ];
1024 if_indextoname(brid, namebuf);
1025 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1026 "%s", brid, namebuf);
1027 del_ifidx(drv, brid);
1028 }
3f5285e8
JM		 1029}
1030
1031
c2a04078
JM		 1032static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1033 const u8 *frame, size_t len)
1034{
1035 const struct ieee80211_mgmt *mgmt;
1036 union wpa_event_data event;
1037
7d81932d 1038 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
c2a04078
JM		 1039 mgmt = (const struct ieee80211_mgmt *) frame;
1040 if (len < 24 + sizeof(mgmt->u.auth)) {
1041 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1042 "frame");
1043 return;
1044 }
1045
e6b8efeb 1046 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 1047 os_memset(&event, 0, sizeof(event));
1048 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1049 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
569fed90
JM		 1050 event.auth.auth_transaction =
1051 le_to_host16(mgmt->u.auth.auth_transaction);
c2a04078
JM		 1052 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1053 if (len > 24 + sizeof(mgmt->u.auth)) {
1054 event.auth.ies = mgmt->u.auth.variable;
1055 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1056 }
1057
1058 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1059}
1060
1061
f5a8d422
JM		 1062static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1063{
1064 struct nl_msg *msg;
1065 int ret;
1066 struct nl80211_bss_info_arg arg;
1067
1068 os_memset(&arg, 0, sizeof(arg));
1069 msg = nlmsg_alloc();
1070 if (!msg)
1071 goto nla_put_failure;
1072
9fb04070 1073 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 1074 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1075
1076 arg.drv = drv;
1077 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1078 msg = NULL;
1079 if (ret == 0) {
1080 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1081 "associated BSS from scan results: %u MHz",
1082 arg.assoc_freq);
1083 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1084 }
1085 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1086 "(%s)", ret, strerror(-ret));
1087nla_put_failure:
1088 nlmsg_free(msg);
1089 return drv->assoc_freq;
1090}
1091
1092
c2a04078
JM		 1093static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1094 const u8 *frame, size_t len)
1095{
1096 const struct ieee80211_mgmt *mgmt;
1097 union wpa_event_data event;
1098 u16 status;
1099
7d81932d 1100 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
c2a04078
JM		 1101 mgmt = (const struct ieee80211_mgmt *) frame;
1102 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1103 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1104 "frame");
1105 return;
1106 }
1107
1108 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1109 if (status != WLAN_STATUS_SUCCESS) {
efa46078 1110 os_memset(&event, 0, sizeof(event));
59ddf221 1111 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 1112 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1113 event.assoc_reject.resp_ies =
1114 (u8 *) mgmt->u.assoc_resp.variable;
1115 event.assoc_reject.resp_ies_len =
1116 len - 24 - sizeof(mgmt->u.assoc_resp);
1117 }
1118 event.assoc_reject.status_code = status;
1119
1120 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 1121 return;
1122 }
1123
1124 drv->associated = 1;
1125 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1126
1127 os_memset(&event, 0, sizeof(event));
1128 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1129 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1130 event.assoc_info.resp_ies_len =
efa46078 1131 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 1132 }
1133
4832ecd7
JM		 1134 event.assoc_info.freq = drv->assoc_freq;
1135
c2a04078
JM		 1136 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1137}
1138
c1bb3e0a 1139
da72a1c1
ZY		 1140static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1141 enum nl80211_commands cmd, struct nlattr *status,
1142 struct nlattr *addr, struct nlattr *req_ie,
1143 struct nlattr *resp_ie)
1144{
1145 union wpa_event_data event;
1146
7da2c527
JM		 1147 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1148 /*
1149 * Avoid reporting two association events that would confuse
1150 * the core code.
1151 */
1152 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1153 "when using userspace SME", cmd);
1154 return;
1155 }
1156
7d81932d
JM		 1157 if (cmd == NL80211_CMD_CONNECT)
1158 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1159 else if (cmd == NL80211_CMD_ROAM)
1160 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1161
da72a1c1
ZY		 1162 os_memset(&event, 0, sizeof(event));
1163 if (cmd == NL80211_CMD_CONNECT &&
1164 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 1165 if (addr)
1166 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 1167 if (resp_ie) {
1168 event.assoc_reject.resp_ies = nla_data(resp_ie);
1169 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1170 }
1171 event.assoc_reject.status_code = nla_get_u16(status);
1172 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1173 return;
1174 }
1175
1176 drv->associated = 1;
1177 if (addr)
1178 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1179
1180 if (req_ie) {
1181 event.assoc_info.req_ies = nla_data(req_ie);
1182 event.assoc_info.req_ies_len = nla_len(req_ie);
1183 }
1184 if (resp_ie) {
1185 event.assoc_info.resp_ies = nla_data(resp_ie);
1186 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1187 }
1188
f5a8d422
JM		 1189 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1190
da72a1c1
ZY		 1191 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1192}
c2a04078 1193
c1bb3e0a 1194
20f5a4c2 1195static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
3d9975d5
JM		 1196 struct nlattr *reason, struct nlattr *addr,
1197 struct nlattr *by_ap)
20f5a4c2
JM		 1198{
1199 union wpa_event_data data;
a8c5b43a 1200 unsigned int locally_generated = by_ap == NULL;
20f5a4c2
JM		 1201
1202 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1203 /*
1204 * Avoid reporting two disassociation events that could
1205 * confuse the core code.
1206 */
1207 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1208 "event when using userspace SME");
1209 return;
1210 }
1211
a8c5b43a
CW		 1212 if (drv->ignore_next_local_disconnect) {
1213 drv->ignore_next_local_disconnect = 0;
1214 if (locally_generated) {
1215 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1216 "event triggered during reassociation");
1217 return;
1218 }
1219 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1220 "disconnect but got another disconnect "
1221 "event first");
1222 }
1223
7d81932d 1224 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
20f5a4c2
JM		 1225 drv->associated = 0;
1226 os_memset(&data, 0, sizeof(data));
1227 if (reason)
2e9f078c
JM		 1228 data.deauth_info.reason_code = nla_get_u16(reason);
1229 data.deauth_info.locally_generated = by_ap == NULL;
1230 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
20f5a4c2
JM		 1231}
1232
1233
1b487b8b
TP		 1234static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1235 struct nlattr *freq, struct nlattr *type)
1236{
1237 union wpa_event_data data;
1238 int ht_enabled = 1;
1239 int chan_offset = 0;
1240
1241 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1242
1243 if (!freq || !type)
1244 return;
1245
1246 switch (nla_get_u32(type)) {
1247 case NL80211_CHAN_NO_HT:
1248 ht_enabled = 0;
1249 break;
1250 case NL80211_CHAN_HT20:
1251 break;
1252 case NL80211_CHAN_HT40PLUS:
1253 chan_offset = 1;
1254 break;
1255 case NL80211_CHAN_HT40MINUS:
1256 chan_offset = -1;
1257 break;
1258 }
1259
1260 data.ch_switch.freq = nla_get_u32(freq);
1261 data.ch_switch.ht_enabled = ht_enabled;
1262 data.ch_switch.ch_offset = chan_offset;
1263
1264 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1265}
1266
1267
da1fb17c
JM		 1268static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1269 enum nl80211_commands cmd, struct nlattr *addr)
1270{
1271 union wpa_event_data event;
1272 enum wpa_event_type ev;
1273
1274 if (nla_len(addr) != ETH_ALEN)
1275 return;
1276
1277 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1278 cmd, MAC2STR((u8 *) nla_data(addr)));
1279
1280 if (cmd == NL80211_CMD_AUTHENTICATE)
1281 ev = EVENT_AUTH_TIMED_OUT;
1282 else if (cmd == NL80211_CMD_ASSOCIATE)
1283 ev = EVENT_ASSOC_TIMED_OUT;
1284 else
1285 return;
1286
1287 os_memset(&event, 0, sizeof(event));
1288 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1289 wpa_supplicant_event(drv->ctx, ev, &event);
1290}
1291
1292
5582a5d1 1293static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
da873dbb
JB		 1294 struct nlattr *freq, struct nlattr *sig,
1295 const u8 *frame, size_t len)
58f6fbe0
JM		 1296{
1297 const struct ieee80211_mgmt *mgmt;
1298 union wpa_event_data event;
1299 u16 fc, stype;
da873dbb 1300 int ssi_signal = 0;
58f6fbe0 1301
cc2ada86 1302 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event");
58f6fbe0
JM		 1303 mgmt = (const struct ieee80211_mgmt *) frame;
1304 if (len < 24) {
1305 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1306 return;
1307 }
1308
1309 fc = le_to_host16(mgmt->frame_control);
1310 stype = WLAN_FC_GET_STYPE(fc);
1311
da873dbb
JB		 1312 if (sig)
1313 ssi_signal = (s32) nla_get_u32(sig);
1314
58f6fbe0 1315 os_memset(&event, 0, sizeof(event));
5582a5d1 1316 if (freq) {
58f6fbe0 1317 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 1318 drv->last_mgmt_freq = event.rx_action.freq;
1319 }
1320 if (stype == WLAN_FC_STYPE_ACTION) {
1321 event.rx_action.da = mgmt->da;
1322 event.rx_action.sa = mgmt->sa;
1323 event.rx_action.bssid = mgmt->bssid;
1324 event.rx_action.category = mgmt->u.action.category;
1325 event.rx_action.data = &mgmt->u.action.category + 1;
1326 event.rx_action.len = frame + len - event.rx_action.data;
1327 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1328 } else {
1329 event.rx_mgmt.frame = frame;
1330 event.rx_mgmt.frame_len = len;
da873dbb 1331 event.rx_mgmt.ssi_signal = ssi_signal;
5582a5d1
JB		 1332 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1333 }
58f6fbe0
JM		 1334}
1335
1336
a11241fa
JB		 1337static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1338 struct nlattr *cookie, const u8 *frame,
1339 size_t len, struct nlattr *ack)
58f6fbe0
JM		 1340{
1341 union wpa_event_data event;
1342 const struct ieee80211_hdr *hdr;
1343 u16 fc;
58f6fbe0 1344
7d81932d 1345 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
a11241fa
JB		 1346 if (!is_ap_interface(drv->nlmode)) {
1347 u64 cookie_val;
58f6fbe0 1348
a11241fa
JB		 1349 if (!cookie)
1350 return;
1351
1352 cookie_val = nla_get_u64(cookie);
1353 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1354 " cookie=0%llx%s (ack=%d)",
1355 (long long unsigned int) cookie_val,
1356 cookie_val == drv->send_action_cookie ?
1357 " (match)" : " (unknown)", ack != NULL);
1358 if (cookie_val != drv->send_action_cookie)
1359 return;
1360 }
58f6fbe0
JM		 1361
1362 hdr = (const struct ieee80211_hdr *) frame;
1363 fc = le_to_host16(hdr->frame_control);
1364
1365 os_memset(&event, 0, sizeof(event));
1366 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1367 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1368 event.tx_status.dst = hdr->addr1;
1369 event.tx_status.data = frame;
1370 event.tx_status.data_len = len;
1371 event.tx_status.ack = ack != NULL;
1372 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1373}
1374
1375
0544b242
JM		 1376static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1377 enum wpa_event_type type,
1378 const u8 *frame, size_t len)
1379{
1380 const struct ieee80211_mgmt *mgmt;
1381 union wpa_event_data event;
1382 const u8 *bssid = NULL;
1383 u16 reason_code = 0;
1384
7d81932d
JM		 1385 if (type == EVENT_DEAUTH)
1386 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1387 else
1388 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1389
cb30b297
PS		 1390 mgmt = (const struct ieee80211_mgmt *) frame;
1391 if (len >= 24) {
1392 bssid = mgmt->bssid;
1393
1394 if (drv->associated != 0 &&
1395 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1396 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1397 /*
1398 * We have presumably received this deauth as a
1399 * response to a clear_state_mismatch() outgoing
1400 * deauth. Don't let it take us offline!
1401 */
1402 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1403 "from Unknown BSSID " MACSTR " -- ignoring",
1404 MAC2STR(bssid));
1405 return;
1406 }
1407 }
1408
0544b242
JM		 1409 drv->associated = 0;
1410 os_memset(&event, 0, sizeof(event));
1411
0544b242
JM		 1412 /* Note: Same offset for Reason Code in both frame subtypes */
1413 if (len >= 24 + sizeof(mgmt->u.deauth))
1414 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1415
1416 if (type == EVENT_DISASSOC) {
3d9975d5
JM		 1417 event.disassoc_info.locally_generated =
1418 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1419 event.disassoc_info.addr = bssid;
1420 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1421 if (frame + len > mgmt->u.disassoc.variable) {
1422 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1423 event.disassoc_info.ie_len = frame + len -
1424 mgmt->u.disassoc.variable;
1425 }
0544b242 1426 } else {
3d9975d5
JM		 1427 event.deauth_info.locally_generated =
1428 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1429 event.deauth_info.addr = bssid;
1430 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1431 if (frame + len > mgmt->u.deauth.variable) {
1432 event.deauth_info.ie = mgmt->u.deauth.variable;
1433 event.deauth_info.ie_len = frame + len -
1434 mgmt->u.deauth.variable;
1435 }
0544b242
JM		 1436 }
1437
1438 wpa_supplicant_event(drv->ctx, type, &event);
1439}
1440
1441
7d878ca7
JM		 1442static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1443 enum wpa_event_type type,
1444 const u8 *frame, size_t len)
1445{
1446 const struct ieee80211_mgmt *mgmt;
1447 union wpa_event_data event;
1448 u16 reason_code = 0;
1449
7d81932d
JM		 1450 if (type == EVENT_UNPROT_DEAUTH)
1451 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1452 else
1453 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1454
7d878ca7
JM		 1455 if (len < 24)
1456 return;
1457
1458 mgmt = (const struct ieee80211_mgmt *) frame;
1459
1460 os_memset(&event, 0, sizeof(event));
1461 /* Note: Same offset for Reason Code in both frame subtypes */
1462 if (len >= 24 + sizeof(mgmt->u.deauth))
1463 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1464
1465 if (type == EVENT_UNPROT_DISASSOC) {
1466 event.unprot_disassoc.sa = mgmt->sa;
1467 event.unprot_disassoc.da = mgmt->da;
1468 event.unprot_disassoc.reason_code = reason_code;
1469 } else {
1470 event.unprot_deauth.sa = mgmt->sa;
1471 event.unprot_deauth.da = mgmt->da;
1472 event.unprot_deauth.reason_code = reason_code;
1473 }
1474
1475 wpa_supplicant_event(drv->ctx, type, &event);
1476}
1477
1478
c2a04078 1479static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 1480 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1481 struct nlattr *addr, struct nlattr *timed_out,
1482 struct nlattr *freq, struct nlattr *ack,
da873dbb 1483 struct nlattr *cookie, struct nlattr *sig)
c2a04078 1484{
da1fb17c
JM		 1485 if (timed_out && addr) {
1486 mlme_timeout_event(drv, cmd, addr);
1487 return;
1488 }
1489
c2a04078
JM		 1490 if (frame == NULL) {
1491 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1492 "data", cmd);
1493 return;
1494 }
1495
cc2ada86 1496 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d", cmd);
c2a04078
JM		 1497 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1498 nla_data(frame), nla_len(frame));
1499
1500 switch (cmd) {
1501 case NL80211_CMD_AUTHENTICATE:
1502 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1503 break;
1504 case NL80211_CMD_ASSOCIATE:
1505 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1506 break;
1507 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1508 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1509 nla_data(frame), nla_len(frame));
c2a04078
JM		 1510 break;
1511 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1512 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1513 nla_data(frame), nla_len(frame));
c2a04078 1514 break;
bd94971e 1515 case NL80211_CMD_FRAME:
da873dbb
JB		 1516 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1517 nla_len(frame));
58f6fbe0 1518 break;
bd94971e 1519 case NL80211_CMD_FRAME_TX_STATUS:
a11241fa
JB		 1520 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1521 nla_len(frame), ack);
58f6fbe0 1522 break;
7d878ca7
JM		 1523 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1524 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1525 nla_data(frame), nla_len(frame));
1526 break;
1527 case NL80211_CMD_UNPROT_DISASSOCIATE:
1528 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1529 nla_data(frame), nla_len(frame));
1530 break;
c2a04078
JM		 1531 default:
1532 break;
1533 }
1534}
1535
1536
a5e1eb20 1537static void mlme_event_michael_mic_failure(struct i802_bss *bss,
35583f3f
JM		 1538 struct nlattr *tb[])
1539{
1540 union wpa_event_data data;
1541
1542 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1543 os_memset(&data, 0, sizeof(data));
1544 if (tb[NL80211_ATTR_MAC]) {
1545 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1546 nla_data(tb[NL80211_ATTR_MAC]),
1547 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1548 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1549 }
1550 if (tb[NL80211_ATTR_KEY_SEQ]) {
1551 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1552 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1553 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1554 }
1555 if (tb[NL80211_ATTR_KEY_TYPE]) {
1556 enum nl80211_key_type key_type =
1557 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1558 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1559 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1560 data.michael_mic_failure.unicast = 1;
1561 } else
1562 data.michael_mic_failure.unicast = 1;
1563
1564 if (tb[NL80211_ATTR_KEY_IDX]) {
1565 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1566 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1567 }
1568
a5e1eb20 1569 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
35583f3f
JM		 1570}
1571
1572
5cc4d64b
JM		 1573static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1574 struct nlattr *tb[])
1575{
1576 if (tb[NL80211_ATTR_MAC] == NULL) {
1577 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1578 "event");
1579 return;
1580 }
1581 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1582 drv->associated = 1;
1583 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1584 MAC2STR(drv->bssid));
1585
1586 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1587}
1588
1589
55777702
JM		 1590static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1591 int cancel_event, struct nlattr *tb[])
1592{
1593 unsigned int freq, chan_type, duration;
1594 union wpa_event_data data;
1595 u64 cookie;
1596
1597 if (tb[NL80211_ATTR_WIPHY_FREQ])
1598 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1599 else
1600 freq = 0;
1601
1602 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1603 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1604 else
1605 chan_type = 0;
1606
1607 if (tb[NL80211_ATTR_DURATION])
1608 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1609 else
1610 duration = 0;
1611
1612 if (tb[NL80211_ATTR_COOKIE])
1613 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1614 else
1615 cookie = 0;
1616
1617 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1618 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1619 cancel_event, freq, chan_type, duration,
1620 (long long unsigned int) cookie,
1621 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1622
1623 if (cookie != drv->remain_on_chan_cookie)
1624 return; /* not for us */
1625
531f0331
JB		 1626 if (cancel_event)
1627 drv->pending_remain_on_chan = 0;
55777702
JM		 1628
1629 os_memset(&data, 0, sizeof(data));
1630 data.remain_on_channel.freq = freq;
1631 data.remain_on_channel.duration = duration;
1632 wpa_supplicant_event(drv->ctx, cancel_event ?
1633 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1634 EVENT_REMAIN_ON_CHANNEL, &data);
1635}
1636
1637
6a1ce395
DG		 1638static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv,
1639 struct nlattr *tb[])
1640{
1641 union wpa_event_data data;
1642
1643 os_memset(&data, 0, sizeof(data));
1644
1645 if (tb[NL80211_ATTR_IE]) {
1646 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]);
1647 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]);
1648 }
1649
1650 if (tb[NL80211_ATTR_IE_RIC]) {
1651 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]);
1652 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]);
1653 }
1654
1655 if (tb[NL80211_ATTR_MAC])
1656 os_memcpy(data.ft_ies.target_ap,
1657 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1658
1659 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR,
1660 MAC2STR(data.ft_ies.target_ap));
1661
1662 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data);
1663}
1664
1665
8d923a4a
JM		 1666static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1667 struct nlattr *tb[])
1668{
1669 union wpa_event_data event;
1670 struct nlattr *nl;
1671 int rem;
1672 struct scan_info *info;
1673#define MAX_REPORT_FREQS 50
1674 int freqs[MAX_REPORT_FREQS];
1675 int num_freqs = 0;
1676
536fd62d
JM		 1677 if (drv->scan_for_auth) {
1678 drv->scan_for_auth = 0;
1679 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1680 "cfg80211 BSS entry");
1681 wpa_driver_nl80211_authenticate_retry(drv);
1682 return;
1683 }
1684
8d923a4a
JM		 1685 os_memset(&event, 0, sizeof(event));
1686 info = &event.scan_info;
1687 info->aborted = aborted;
1688
1689 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1690 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1691 struct wpa_driver_scan_ssid *s =
1692 &info->ssids[info->num_ssids];
1693 s->ssid = nla_data(nl);
1694 s->ssid_len = nla_len(nl);
1695 info->num_ssids++;
1696 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1697 break;
1698 }
1699 }
1700 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1701 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1702 {
1703 freqs[num_freqs] = nla_get_u32(nl);
1704 num_freqs++;
1705 if (num_freqs == MAX_REPORT_FREQS - 1)
1706 break;
1707 }
1708 info->freqs = freqs;
1709 info->num_freqs = num_freqs;
1710 }
1711 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1712}
1713
1714
60a972a6
JM		 1715static int get_link_signal(struct nl_msg *msg, void *arg)
1716{
1717 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1718 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1719 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1720 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1721 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1722 };
7ee35bf3
PS		 1723 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1724 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1725 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1726 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1727 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1728 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1729 };
1c5c7273 1730 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1731
1732 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1733 genlmsg_attrlen(gnlh, 0), NULL);
1734 if (!tb[NL80211_ATTR_STA_INFO] ||
1735 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1736 tb[NL80211_ATTR_STA_INFO], policy))
1737 return NL_SKIP;
1738 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1739 return NL_SKIP;
1740
7ee35bf3
PS		 1741 sig_change->current_signal =
1742 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1743
1744 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1745 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1746 sinfo[NL80211_STA_INFO_TX_BITRATE],
1747 rate_policy)) {
1748 sig_change->current_txrate = 0;
1749 } else {
1750 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1751 sig_change->current_txrate =
1752 nla_get_u16(rinfo[
1753 NL80211_RATE_INFO_BITRATE]) * 100;
1754 }
1755 }
1756 }
1757
60a972a6
JM		 1758 return NL_SKIP;
1759}
1760
1761
1762static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1763 struct wpa_signal_info *sig)
60a972a6
JM		 1764{
1765 struct nl_msg *msg;
1766
7ee35bf3
PS		 1767 sig->current_signal = -9999;
1768 sig->current_txrate = 0;
60a972a6
JM		 1769
1770 msg = nlmsg_alloc();
1771 if (!msg)
1772 return -ENOMEM;
1773
9fb04070 1774 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1775
1776 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1777 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1778
1779 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1780 nla_put_failure:
5883168a 1781 nlmsg_free(msg);
60a972a6
JM		 1782 return -ENOBUFS;
1783}
1784
1785
7ee35bf3
PS		 1786static int get_link_noise(struct nl_msg *msg, void *arg)
1787{
1788 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1789 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1790 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1791 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1792 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1793 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1794 };
1c5c7273 1795 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1796
1797 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1798 genlmsg_attrlen(gnlh, 0), NULL);
1799
1800 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1801 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1802 return NL_SKIP;
1803 }
1804
1805 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1806 tb[NL80211_ATTR_SURVEY_INFO],
1807 survey_policy)) {
1808 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1809 "attributes!");
1810 return NL_SKIP;
1811 }
1812
1813 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1814 return NL_SKIP;
1815
1816 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1817 sig_change->frequency)
1818 return NL_SKIP;
1819
1820 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1821 return NL_SKIP;
1822
1823 sig_change->current_noise =
1824 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1825
1826 return NL_SKIP;
1827}
1828
1829
1830static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1831 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1832{
1833 struct nl_msg *msg;
1834
1835 sig_change->current_noise = 9999;
1836 sig_change->frequency = drv->assoc_freq;
1837
1838 msg = nlmsg_alloc();
1839 if (!msg)
1840 return -ENOMEM;
1841
9fb04070 1842 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1843
1844 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1845
1846 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1847 nla_put_failure:
5883168a 1848 nlmsg_free(msg);
7ee35bf3
PS		 1849 return -ENOBUFS;
1850}
1851
1852
577db0ae
GM		 1853static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1854{
1855 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1856 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1857 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1858 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1859 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1860 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1861 };
1862 struct wpa_scan_results *scan_results = arg;
1863 struct wpa_scan_res *scan_res;
1864 size_t i;
1865
1866 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1867 genlmsg_attrlen(gnlh, 0), NULL);
1868
1869 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1870 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1871 return NL_SKIP;
1872 }
1873
1874 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1875 tb[NL80211_ATTR_SURVEY_INFO],
1876 survey_policy)) {
1877 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1878 "attributes");
1879 return NL_SKIP;
1880 }
1881
1882 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1883 return NL_SKIP;
1884
1885 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1886 return NL_SKIP;
1887
1888 for (i = 0; i < scan_results->num; ++i) {
1889 scan_res = scan_results->res[i];
1890 if (!scan_res)
1891 continue;
1892 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1893 scan_res->freq)
1894 continue;
1895 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1896 continue;
1897 scan_res->noise = (s8)
1898 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1899 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1900 }
1901
1902 return NL_SKIP;
1903}
1904
1905
1906static int nl80211_get_noise_for_scan_results(
1907 struct wpa_driver_nl80211_data *drv,
1908 struct wpa_scan_results *scan_res)
1909{
1910 struct nl_msg *msg;
1911
1912 msg = nlmsg_alloc();
1913 if (!msg)
1914 return -ENOMEM;
1915
1916 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1917
1918 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1919
1920 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1921 scan_res);
1922 nla_put_failure:
9e088e74 1923 nlmsg_free(msg);
577db0ae
GM		 1924 return -ENOBUFS;
1925}
1926
1927
93910401
JM		 1928static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1929 struct nlattr *tb[])
1930{
1931 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1932 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1933 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1934 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1935 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1936 };
1937 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1938 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1939 union wpa_event_data ed;
1c5c7273 1940 struct wpa_signal_info sig;
7ee35bf3 1941 int res;
93910401
JM		 1942
1943 if (tb[NL80211_ATTR_CQM] == NULL ||
1944 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1945 cqm_policy)) {
1946 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1947 return;
1948 }
1949
0d7e5a3a
JB		 1950 os_memset(&ed, 0, sizeof(ed));
1951
1952 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1953 if (!tb[NL80211_ATTR_MAC])
1954 return;
1955 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1956 ETH_ALEN);
1957 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1958 return;
1959 }
1960
93910401
JM		 1961 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1962 return;
1963 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1964
93910401
JM		 1965 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1966 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1967 "event: RSSI high");
b625473c 1968 ed.signal_change.above_threshold = 1;
93910401
JM		 1969 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1970 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1971 "event: RSSI low");
b625473c
JM		 1972 ed.signal_change.above_threshold = 0;
1973 } else
1974 return;
1975
60a972a6
JM		 1976 res = nl80211_get_link_signal(drv, &sig);
1977 if (res == 0) {
7ee35bf3
PS		 1978 ed.signal_change.current_signal = sig.current_signal;
1979 ed.signal_change.current_txrate = sig.current_txrate;
1980 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1981 sig.current_signal, sig.current_txrate);
1982 }
1983
1984 res = nl80211_get_link_noise(drv, &sig);
1985 if (res == 0) {
1986 ed.signal_change.current_noise = sig.current_noise;
1987 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1988 sig.current_noise);
60a972a6
JM		 1989 }
1990
b625473c 1991 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1992}
1993
1994
18d2ba08
JM		 1995static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1996 struct nlattr **tb)
1997{
1998 u8 *addr;
1999 union wpa_event_data data;
2000
2001 if (tb[NL80211_ATTR_MAC] == NULL)
2002 return;
2003 addr = nla_data(tb[NL80211_ATTR_MAC]);
2004 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 2005
61cbe2ff 2006 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2007 u8 *ies = NULL;
2008 size_t ies_len = 0;
2009 if (tb[NL80211_ATTR_IE]) {
2010 ies = nla_data(tb[NL80211_ATTR_IE]);
2011 ies_len = nla_len(tb[NL80211_ATTR_IE]);
2012 }
2013 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
2014 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
2015 return;
2016 }
2017
18d2ba08
JM		 2018 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2019 return;
2020
2021 os_memset(&data, 0, sizeof(data));
2022 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
2023 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
2024}
2025
2026
ef985058
JM		 2027static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
2028 struct nlattr **tb)
2029{
2030 u8 *addr;
2031 union wpa_event_data data;
2032
2033 if (tb[NL80211_ATTR_MAC] == NULL)
2034 return;
2035 addr = nla_data(tb[NL80211_ATTR_MAC]);
2036 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2037 MAC2STR(addr));
5f310a9e 2038
61cbe2ff 2039 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2040 drv_event_disassoc(drv->ctx, addr);
2041 return;
2042 }
2043
ef985058
JM		 2044 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2045 return;
2046
2047 os_memset(&data, 0, sizeof(data));
2048 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2049 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2050}
2051
2052
b14a210c
JB		 2053static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2054 struct nlattr **tb)
2055{
2056 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2057 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2058 [NL80211_REKEY_DATA_KEK] = {
2059 .minlen = NL80211_KEK_LEN,
2060 .maxlen = NL80211_KEK_LEN,
2061 },
2062 [NL80211_REKEY_DATA_KCK] = {
2063 .minlen = NL80211_KCK_LEN,
2064 .maxlen = NL80211_KCK_LEN,
2065 },
2066 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2067 .minlen = NL80211_REPLAY_CTR_LEN,
2068 .maxlen = NL80211_REPLAY_CTR_LEN,
2069 },
2070 };
2071 union wpa_event_data data;
2072
2073 if (!tb[NL80211_ATTR_MAC])
2074 return;
2075 if (!tb[NL80211_ATTR_REKEY_DATA])
2076 return;
2077 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2078 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2079 return;
2080 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2081 return;
2082
2083 os_memset(&data, 0, sizeof(data));
2084 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2085 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2086 MAC2STR(data.driver_gtk_rekey.bssid));
2087 data.driver_gtk_rekey.replay_ctr =
2088 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2089 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2090 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2091 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2092}
2093
2094
c36d5242
JM		 2095static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2096 struct nlattr **tb)
2097{
2098 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2099 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2100 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2101 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2102 .minlen = ETH_ALEN,
2103 .maxlen = ETH_ALEN,
2104 },
2105 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2106 };
2107 union wpa_event_data data;
2108
7d81932d
JM		 2109 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2110
c36d5242
JM		 2111 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2112 return;
2113 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2114 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2115 return;
2116 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2117 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2118 return;
2119
2120 os_memset(&data, 0, sizeof(data));
2121 os_memcpy(data.pmkid_candidate.bssid,
2122 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2123 data.pmkid_candidate.index =
2124 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2125 data.pmkid_candidate.preauth =
2126 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2127 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2128}
2129
2130
39718852
JB		 2131static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2132 struct nlattr **tb)
2133{
2134 union wpa_event_data data;
2135
7d81932d
JM		 2136 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2137
39718852
JB		 2138 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2139 return;
2140
2141 os_memset(&data, 0, sizeof(data));
2142 os_memcpy(data.client_poll.addr,
2143 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2144
2145 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2146}
2147
2148
6201b052
JM		 2149static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
2150 struct nlattr **tb)
2151{
2152 union wpa_event_data data;
2153
2154 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
2155
2156 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
2157 return;
2158
2159 os_memset(&data, 0, sizeof(data));
2160 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2161 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
2162 case NL80211_TDLS_SETUP:
2163 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
2164 MACSTR, MAC2STR(data.tdls.peer));
2165 data.tdls.oper = TDLS_REQUEST_SETUP;
2166 break;
2167 case NL80211_TDLS_TEARDOWN:
2168 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
2169 MACSTR, MAC2STR(data.tdls.peer));
2170 data.tdls.oper = TDLS_REQUEST_TEARDOWN;
2171 break;
2172 default:
2173 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
2174 "event");
2175 return;
2176 }
2177 if (tb[NL80211_ATTR_REASON_CODE]) {
2178 data.tdls.reason_code =
2179 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
2180 }
2181
2182 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
2183}
2184
2185
3140803b
RM		 2186static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv,
2187 struct nlattr **tb)
2188{
2189 union wpa_event_data data;
2190 u32 reason;
2191
2192 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event");
2193
2194 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON])
2195 return;
2196
2197 os_memset(&data, 0, sizeof(data));
2198 os_memcpy(data.connect_failed_reason.addr,
2199 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2200
2201 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]);
2202 switch (reason) {
2203 case NL80211_CONN_FAIL_MAX_CLIENTS:
2204 wpa_printf(MSG_DEBUG, "nl80211: Max client reached");
2205 data.connect_failed_reason.code = MAX_CLIENT_REACHED;
2206 break;
2207 case NL80211_CONN_FAIL_BLOCKED_CLIENT:
2208 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR
2209 " tried to connect",
2210 MAC2STR(data.connect_failed_reason.addr));
2211 data.connect_failed_reason.code = BLOCKED_CLIENT;
2212 break;
2213 default:
2214 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason "
2215 "%u", reason);
2216 return;
2217 }
2218
2219 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data);
2220}
2221
2222
3088e4e5
JB		 2223static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2224 int wds)
02bb32c3
JB		 2225{
2226 struct wpa_driver_nl80211_data *drv = bss->drv;
2227 union wpa_event_data event;
02bb32c3
JB		 2228
2229 if (!tb[NL80211_ATTR_MAC])
2230 return;
2231
02bb32c3 2232 os_memset(&event, 0, sizeof(event));
341eebee 2233 event.rx_from_unknown.bssid = bss->addr;
02bb32c3 2234 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
3088e4e5 2235 event.rx_from_unknown.wds = wds;
02bb32c3
JB		 2236
2237 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2238}
2239
2240
a5e1eb20
SE		 2241static void do_process_drv_event(struct i802_bss *bss, int cmd,
2242 struct nlattr **tb)
97865538 2243{
a5e1eb20
SE		 2244 struct wpa_driver_nl80211_data *drv = bss->drv;
2245
b1f625e0 2246 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
d6c9aab8
JB		 2247 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2248 cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 2249 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2250 drv->ap_scan_as_station);
2251 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 2252 }
2253
d6c9aab8 2254 switch (cmd) {
d942a79e 2255 case NL80211_CMD_TRIGGER_SCAN:
565110cd 2256 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger");
d942a79e 2257 break;
d21c63b9 2258 case NL80211_CMD_START_SCHED_SCAN:
565110cd 2259 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started");
d21c63b9
LC		 2260 break;
2261 case NL80211_CMD_SCHED_SCAN_STOPPED:
565110cd 2262 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped");
d21c63b9
LC		 2263 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2264 break;
97865538 2265 case NL80211_CMD_NEW_SCAN_RESULTS:
565110cd
JM		 2266 wpa_dbg(drv->ctx, MSG_DEBUG,
2267 "nl80211: New scan results available");
97865538
JM		 2268 drv->scan_complete_events = 1;
2269 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2270 drv->ctx);
8d923a4a 2271 send_scan_event(drv, 0, tb);
97865538 2272 break;
d21c63b9 2273 case NL80211_CMD_SCHED_SCAN_RESULTS:
565110cd
JM		 2274 wpa_dbg(drv->ctx, MSG_DEBUG,
2275 "nl80211: New sched scan results available");
d21c63b9
LC		 2276 send_scan_event(drv, 0, tb);
2277 break;
97865538 2278 case NL80211_CMD_SCAN_ABORTED:
565110cd 2279 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted");
97865538
JM		 2280 /*
2281 * Need to indicate that scan results are available in order
2282 * not to make wpa_supplicant stop its scanning.
2283 */
2284 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2285 drv->ctx);
8d923a4a 2286 send_scan_event(drv, 1, tb);
97865538 2287 break;
c2a04078
JM		 2288 case NL80211_CMD_AUTHENTICATE:
2289 case NL80211_CMD_ASSOCIATE:
2290 case NL80211_CMD_DEAUTHENTICATE:
2291 case NL80211_CMD_DISASSOCIATE:
bd94971e 2292 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 2293 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2294 case NL80211_CMD_UNPROT_DISASSOCIATE:
d6c9aab8 2295 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 2296 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2297 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2298 tb[NL80211_ATTR_COOKIE],
2299 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
c2a04078 2300 break;
da72a1c1
ZY		 2301 case NL80211_CMD_CONNECT:
2302 case NL80211_CMD_ROAM:
d6c9aab8 2303 mlme_event_connect(drv, cmd,
da72a1c1
ZY		 2304 tb[NL80211_ATTR_STATUS_CODE],
2305 tb[NL80211_ATTR_MAC],
2306 tb[NL80211_ATTR_REQ_IE],
2307 tb[NL80211_ATTR_RESP_IE]);
2308 break;
1b487b8b
TP		 2309 case NL80211_CMD_CH_SWITCH_NOTIFY:
2310 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ],
2311 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2312 break;
da72a1c1 2313 case NL80211_CMD_DISCONNECT:
20f5a4c2 2314 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
3d9975d5
JM		 2315 tb[NL80211_ATTR_MAC],
2316 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
da72a1c1 2317 break;
35583f3f 2318 case NL80211_CMD_MICHAEL_MIC_FAILURE:
a5e1eb20 2319 mlme_event_michael_mic_failure(bss, tb);
35583f3f 2320 break;
5cc4d64b
JM		 2321 case NL80211_CMD_JOIN_IBSS:
2322 mlme_event_join_ibss(drv, tb);
2323 break;
55777702
JM		 2324 case NL80211_CMD_REMAIN_ON_CHANNEL:
2325 mlme_event_remain_on_channel(drv, 0, tb);
2326 break;
2327 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2328 mlme_event_remain_on_channel(drv, 1, tb);
2329 break;
93910401
JM		 2330 case NL80211_CMD_NOTIFY_CQM:
2331 nl80211_cqm_event(drv, tb);
2332 break;
33c5deb8
JM		 2333 case NL80211_CMD_REG_CHANGE:
2334 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2335 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2336 NULL);
2337 break;
2338 case NL80211_CMD_REG_BEACON_HINT:
2339 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2340 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2341 NULL);
2342 break;
18d2ba08
JM		 2343 case NL80211_CMD_NEW_STATION:
2344 nl80211_new_station_event(drv, tb);
2345 break;
ef985058
JM		 2346 case NL80211_CMD_DEL_STATION:
2347 nl80211_del_station_event(drv, tb);
2348 break;
b14a210c
JB		 2349 case NL80211_CMD_SET_REKEY_OFFLOAD:
2350 nl80211_rekey_offload_event(drv, tb);
2351 break;
c36d5242
JM		 2352 case NL80211_CMD_PMKSA_CANDIDATE:
2353 nl80211_pmksa_candidate_event(drv, tb);
2354 break;
39718852
JB		 2355 case NL80211_CMD_PROBE_CLIENT:
2356 nl80211_client_probe_event(drv, tb);
2357 break;
6201b052
JM		 2358 case NL80211_CMD_TDLS_OPER:
2359 nl80211_tdls_oper_event(drv, tb);
2360 break;
3140803b
RM		 2361 case NL80211_CMD_CONN_FAILED:
2362 nl80211_connect_failed_event(drv, tb);
2363 break;
6a1ce395
DG		 2364 case NL80211_CMD_FT_EVENT:
2365 mlme_event_ft_event(drv, tb);
2366 break;
97865538 2367 default:
565110cd
JM		 2368 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
2369 "(cmd=%d)", cmd);
97865538
JM		 2370 break;
2371 }
d6c9aab8
JB		 2372}
2373
2374
2375static int process_drv_event(struct nl_msg *msg, void *arg)
2376{
2377 struct wpa_driver_nl80211_data *drv = arg;
2378 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2379 struct nlattr *tb[NL80211_ATTR_MAX + 1];
a5e1eb20
SE		 2380 struct i802_bss *bss;
2381 int ifidx = -1;
d6c9aab8
JB		 2382
2383 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2384 genlmsg_attrlen(gnlh, 0), NULL);
2385
a5e1eb20
SE		 2386 if (tb[NL80211_ATTR_IFINDEX])
2387 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2388
2389 for (bss = &drv->first_bss; bss; bss = bss->next) {
2390 if (ifidx == -1 || ifidx == bss->ifindex) {
2391 do_process_drv_event(bss, gnlh->cmd, tb);
d6c9aab8
JB		 2392 return NL_SKIP;
2393 }
2394 }
2395
a5e1eb20
SE		 2396 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d) for foreign "
2397 "interface (ifindex %d)", gnlh->cmd, ifidx);
2398
d6c9aab8
JB		 2399 return NL_SKIP;
2400}
2401
2402
2403static int process_global_event(struct nl_msg *msg, void *arg)
2404{
2405 struct nl80211_global *global = arg;
2406 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2407 struct nlattr *tb[NL80211_ATTR_MAX + 1];
24b5bd8b 2408 struct wpa_driver_nl80211_data *drv, *tmp;
d6c9aab8 2409 int ifidx = -1;
a5e1eb20 2410 struct i802_bss *bss;
d6c9aab8
JB		 2411
2412 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2413 genlmsg_attrlen(gnlh, 0), NULL);
2414
2415 if (tb[NL80211_ATTR_IFINDEX])
2416 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2417
24b5bd8b
JB		 2418 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2419 struct wpa_driver_nl80211_data, list) {
a5e1eb20
SE		 2420 for (bss = &drv->first_bss; bss; bss = bss->next) {
2421 if (ifidx == -1 || ifidx == bss->ifindex) {
2422 do_process_drv_event(bss, gnlh->cmd, tb);
2423 return NL_SKIP;
2424 }
2425 }
d6c9aab8 2426 }
97865538
JM		 2427
2428 return NL_SKIP;
2429}
2430
2431
cc7a48d1
JB		 2432static int process_bss_event(struct nl_msg *msg, void *arg)
2433{
a11241fa 2434 struct i802_bss *bss = arg;
cc7a48d1
JB		 2435 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2436 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2437
2438 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2439 genlmsg_attrlen(gnlh, 0), NULL);
2440
2441 switch (gnlh->cmd) {
a11241fa
JB		 2442 case NL80211_CMD_FRAME:
2443 case NL80211_CMD_FRAME_TX_STATUS:
2444 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2445 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2446 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2447 tb[NL80211_ATTR_COOKIE],
2448 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
a11241fa 2449 break;
02bb32c3 2450 case NL80211_CMD_UNEXPECTED_FRAME:
3088e4e5
JB		 2451 nl80211_spurious_frame(bss, tb, 0);
2452 break;
2453 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2454 nl80211_spurious_frame(bss, tb, 1);
02bb32c3 2455 break;
cc7a48d1
JB		 2456 default:
2457 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2458 "(cmd=%d)", gnlh->cmd);
2459 break;
2460 }
2461
2462 return NL_SKIP;
2463}
2464
2465
97865538 2466static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 2467 void *handle)
97865538 2468{
a4ae123c 2469 struct nl_cb *cb = eloop_ctx;
97865538 2470
cc2ada86 2471 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
97865538 2472
a4ae123c 2473 nl_recvmsgs(handle, cb);
97865538
JM		 2474}
2475
2476
6d158490
LR		 2477/**
2478 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2479 * @priv: driver_nl80211 private data
2480 * @alpha2_arg: country to which to switch to
2481 * Returns: 0 on success, -1 on failure
2482 *
2483 * This asks nl80211 to set the regulatory domain for given
2484 * country ISO / IEC alpha2.
2485 */
2486static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2487{
a2e40bb6
FF		 2488 struct i802_bss *bss = priv;
2489 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 2490 char alpha2[3];
2491 struct nl_msg *msg;
2492
2493 msg = nlmsg_alloc();
2494 if (!msg)
e785c2ba 2495 return -ENOMEM;
6d158490
LR		 2496
2497 alpha2[0] = alpha2_arg[0];
2498 alpha2[1] = alpha2_arg[1];
2499 alpha2[2] = '\0';
2500
9fb04070 2501 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 2502
2503 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2504 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2505 return -EINVAL;
2506 return 0;
2507nla_put_failure:
5883168a 2508 nlmsg_free(msg);
6d158490
LR		 2509 return -EINVAL;
2510}
2511
2512
43245552
DJ		 2513static int protocol_feature_handler(struct nl_msg *msg, void *arg)
2514{
2515 u32 *feat = arg;
2516 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2517 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2518
2519 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2520 genlmsg_attrlen(gnlh, 0), NULL);
2521
2522 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
2523 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
2524
2525 return NL_SKIP;
2526}
2527
2528
2529static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
2530{
2531 u32 feat = 0;
2532 struct nl_msg *msg;
2533
2534 msg = nlmsg_alloc();
2535 if (!msg)
2536 goto nla_put_failure;
2537
2538 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
2539 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
2540 return feat;
2541
2542 msg = NULL;
2543nla_put_failure:
2544 nlmsg_free(msg);
2545 return 0;
2546}
2547
2548
80bc75f1 2549struct wiphy_info_data {
8cd6b7bc 2550 struct wpa_driver_nl80211_data *drv;
e8b5e24e
JB		 2551 struct wpa_driver_capa *capa;
2552
2553 unsigned int error:1;
61cbe2ff 2554 unsigned int device_ap_sme:1;
39718852 2555 unsigned int poll_command_supported:1;
32ab4855 2556 unsigned int data_tx_status:1;
536062f2 2557 unsigned int monitor_supported:1;
43245552
DJ		 2558 unsigned int auth_supported:1;
2559 unsigned int connect_supported:1;
2560 unsigned int p2p_go_supported:1;
2561 unsigned int p2p_client_supported:1;
2562 unsigned int p2p_concurrent:1;
2563 unsigned int p2p_multichan_concurrent:1;
80bc75f1
JM		 2564};
2565
2566
562c9d97
AN		 2567static unsigned int probe_resp_offload_support(int supp_protocols)
2568{
2569 unsigned int prot = 0;
2570
2571 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2572 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2573 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2574 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2575 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2576 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2577 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2578 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2579
2580 return prot;
2581}
2582
2583
5f439107
JM		 2584static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
2585 struct nlattr *tb)
80bc75f1 2586{
5f439107
JM		 2587 struct nlattr *nl_mode;
2588 int i;
2589
2590 if (tb == NULL)
2591 return;
2592
2593 nla_for_each_nested(nl_mode, tb, i) {
2594 switch (nla_type(nl_mode)) {
2595 case NL80211_IFTYPE_AP:
2596 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
2597 break;
65d52fc1
BR		 2598 case NL80211_IFTYPE_ADHOC:
2599 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
2600 break;
5f439107
JM		 2601 case NL80211_IFTYPE_P2P_GO:
2602 info->p2p_go_supported = 1;
2603 break;
2604 case NL80211_IFTYPE_P2P_CLIENT:
2605 info->p2p_client_supported = 1;
2606 break;
2607 case NL80211_IFTYPE_MONITOR:
2608 info->monitor_supported = 1;
2609 break;
2610 }
2611 }
2612}
2613
2614
2615static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
2616 struct nlattr *nl_combi)
2617{
2618 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2619 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2620 struct nlattr *nl_limit, *nl_mode;
2621 int err, rem_limit, rem_mode;
2622 int combination_has_p2p = 0, combination_has_mgd = 0;
7626850d
JB		 2623 static struct nla_policy
2624 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2625 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2626 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2627 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2628 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
2629 },
2630 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2631 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2632 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2633 };
80bc75f1 2634
5f439107
JM		 2635 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2636 nl_combi, iface_combination_policy);
2637 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2638 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2639 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2640 return 0; /* broken combination */
2641
2642 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
2643 rem_limit) {
2644 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
2645 nl_limit, iface_limit_policy);
2646 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2647 return 0; /* broken combination */
2648
2649 nla_for_each_nested(nl_mode,
2650 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2651 rem_mode) {
2652 int ift = nla_type(nl_mode);
2653 if (ift == NL80211_IFTYPE_P2P_GO ||
2654 ift == NL80211_IFTYPE_P2P_CLIENT)
2655 combination_has_p2p = 1;
2656 if (ift == NL80211_IFTYPE_STATION)
2657 combination_has_mgd = 1;
2658 }
2659 if (combination_has_p2p && combination_has_mgd)
2660 break;
2661 }
2662
2663 if (combination_has_p2p && combination_has_mgd) {
2664 info->p2p_concurrent = 1;
2665 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1)
2666 info->p2p_multichan_concurrent = 1;
2667 return 1;
2668 }
2669
2670 return 0;
2671}
2672
2673
2674static void wiphy_info_iface_comb(struct wiphy_info_data *info,
2675 struct nlattr *tb)
2676{
2677 struct nlattr *nl_combi;
2678 int rem_combi;
2679
2680 if (tb == NULL)
2681 return;
2682
2683 nla_for_each_nested(nl_combi, tb, rem_combi) {
2684 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
2685 break;
2686 }
2687}
2688
2689
2690static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
2691 struct nlattr *tb)
2692{
2693 struct nlattr *nl_cmd;
2694 int i;
2695
2696 if (tb == NULL)
2697 return;
2698
2699 nla_for_each_nested(nl_cmd, tb, i) {
2700 switch (nla_get_u32(nl_cmd)) {
2701 case NL80211_CMD_AUTHENTICATE:
2702 info->auth_supported = 1;
2703 break;
2704 case NL80211_CMD_CONNECT:
2705 info->connect_supported = 1;
2706 break;
2707 case NL80211_CMD_START_SCHED_SCAN:
2708 info->capa->sched_scan_supported = 1;
2709 break;
2710 case NL80211_CMD_PROBE_CLIENT:
2711 info->poll_command_supported = 1;
2712 break;
2713 }
2714 }
2715}
2716
2717
2718static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
2719 struct nlattr *tb)
2720{
2721 /* default to 5000 since early versions of mac80211 don't set it */
2722 capa->max_remain_on_chan = 5000;
2723
2724 if (tb)
2725 capa->max_remain_on_chan = nla_get_u32(tb);
2726}
2727
2728
2729static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
2730 struct nlattr *ext_setup)
2731{
2732 if (tdls == NULL)
2733 return;
2734
2735 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2736 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2737
2738 if (ext_setup) {
2739 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2740 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2741 }
2742}
2743
2744
2745static void wiphy_info_feature_flags(struct wiphy_info_data *info,
2746 struct nlattr *tb)
2747{
2748 u32 flags;
2749 struct wpa_driver_capa *capa = info->capa;
2750
2751 if (tb == NULL)
2752 return;
2753
2754 flags = nla_get_u32(tb);
2755
2756 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2757 info->data_tx_status = 1;
2758
2759 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
2760 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
2761
2762 if (flags & NL80211_FEATURE_SAE)
2763 capa->flags |= WPA_DRIVER_FLAGS_SAE;
2764
2765 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
2766 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
2767}
2768
2769
2770static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
2771 struct nlattr *tb)
2772{
2773 u32 protocols;
2774
2775 if (tb == NULL)
2776 return;
2777
2778 protocols = nla_get_u32(tb);
2779 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
2780 "mode");
2781 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
2782 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
2783}
2784
2785
2786static int wiphy_info_handler(struct nl_msg *msg, void *arg)
2787{
2788 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2789 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2790 struct wiphy_info_data *info = arg;
2791 struct wpa_driver_capa *capa = info->capa;
8cd6b7bc 2792 struct wpa_driver_nl80211_data *drv = info->drv;
5f439107 2793
80bc75f1
JM		 2794 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2795 genlmsg_attrlen(gnlh, 0), NULL);
2796
2797 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 2798 capa->max_scan_ssids =
80bc75f1
JM		 2799 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
2800
d21c63b9 2801 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 2802 capa->max_sched_scan_ssids =
d21c63b9
LC		 2803 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
2804
bd525934 2805 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 2806 capa->max_match_sets =
bd525934
LC		 2807 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
2808
5f439107
JM		 2809 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
2810 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
2811 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
93d11400 2812
e8b5e24e
JB		 2813 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2814 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2815 "off-channel TX");
2816 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2817 }
2818
2819 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2820 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2821 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2822 }
5dfca53f 2823
5f439107
JM		 2824 wiphy_info_max_roc(capa,
2825 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
004ba773 2826
70619a5d
EP		 2827 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
2828 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
2829
5f439107
JM		 2830 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
2831 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
03ea1786 2832
61cbe2ff
JB		 2833 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2834 info->device_ap_sme = 1;
2835
5f439107
JM		 2836 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
2837 wiphy_info_probe_resp_offload(capa,
2838 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
562c9d97 2839
8cd6b7bc
JB		 2840 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
2841 drv->extended_capa == NULL) {
2842 drv->extended_capa =
2843 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
2844 if (drv->extended_capa) {
2845 os_memcpy(drv->extended_capa,
2846 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
2847 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
2848 drv->extended_capa_len =
2849 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
2850 }
2851 drv->extended_capa_mask =
2852 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
2853 if (drv->extended_capa_mask) {
2854 os_memcpy(drv->extended_capa_mask,
2855 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
2856 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
2857 } else {
2858 os_free(drv->extended_capa);
2859 drv->extended_capa = NULL;
2860 drv->extended_capa_len = 0;
2861 }
2862 }
2863
80bc75f1
JM		 2864 return NL_SKIP;
2865}
2866
2867
2868static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2869 struct wiphy_info_data *info)
2870{
43245552 2871 u32 feat;
80bc75f1
JM		 2872 struct nl_msg *msg;
2873
2874 os_memset(info, 0, sizeof(*info));
e8b5e24e 2875 info->capa = &drv->capa;
8cd6b7bc 2876 info->drv = drv;
89e07afb 2877
80bc75f1
JM		 2878 msg = nlmsg_alloc();
2879 if (!msg)
2880 return -1;
2881
43245552
DJ		 2882 feat = get_nl80211_protocol_features(drv);
2883 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
2884 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
2885 else
2886 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 2887
43245552 2888 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
a2e40bb6 2889 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1 2890
43245552
DJ		 2891 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
2892 return -1;
2893
2894 if (info->auth_supported)
2895 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
2896 else if (!info->connect_supported) {
2897 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2898 "authentication/association or connect commands");
2899 info->error = 1;
2900 }
2901
2902 if (info->p2p_go_supported && info->p2p_client_supported)
2903 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2904 if (info->p2p_concurrent) {
2905 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2906 "interface (driver advertised support)");
2907 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2908 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
2909 }
2910 if (info->p2p_multichan_concurrent) {
2911 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
2912 "concurrent (driver advertised support)");
2913 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT;
2914 }
2915 return 0;
80bc75f1
JM		 2916nla_put_failure:
2917 nlmsg_free(msg);
2918 return -1;
2919}
2920
2921
93d11400 2922static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 2923{
2924 struct wiphy_info_data info;
2925 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 2926 return -1;
e8b5e24e
JB		 2927
2928 if (info.error)
2929 return -1;
2930
80bc75f1 2931 drv->has_capability = 1;
1b2a72e8
JM		 2932 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2933 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2934 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2935 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2936 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2937 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2938 WPA_DRIVER_CAPA_ENC_WEP104 |
2939 WPA_DRIVER_CAPA_ENC_TKIP |
2940 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 2941 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2942 WPA_DRIVER_AUTH_SHARED |
2943 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 2944
871f4dd0 2945 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 2946 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 2947 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
e1bd4e19 2948
e5091674 2949 if (!info.device_ap_sme) {
e1bd4e19 2950 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 2951
e5091674
JM		 2952 /*
2953 * No AP SME is currently assumed to also indicate no AP MLME
2954 * in the driver/firmware.
2955 */
2956 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
2957 }
2958
61cbe2ff 2959 drv->device_ap_sme = info.device_ap_sme;
39718852 2960 drv->poll_command_supported = info.poll_command_supported;
32ab4855 2961 drv->data_tx_status = info.data_tx_status;
61cbe2ff 2962
a11241fa 2963 /*
73a3c6ff
FF		 2964 * If poll command and tx status are supported, mac80211 is new enough
2965 * to have everything we need to not need monitor interfaces.
a11241fa 2966 */
73a3c6ff 2967 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
a11241fa 2968
536062f2
JM		 2969 if (drv->device_ap_sme && drv->use_monitor) {
2970 /*
2971 * Non-mac80211 drivers may not support monitor interface.
2972 * Make sure we do not get stuck with incorrect capability here
2973 * by explicitly testing this.
2974 */
2975 if (!info.monitor_supported) {
2976 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
2977 "with device_ap_sme since no monitor mode "
2978 "support detected");
2979 drv->use_monitor = 0;
2980 }
2981 }
2982
a11241fa
JB		 2983 /*
2984 * If we aren't going to use monitor interfaces, but the
2985 * driver doesn't support data TX status, we won't get TX
2986 * status for EAPOL frames.
2987 */
2988 if (!drv->use_monitor && !info.data_tx_status)
2989 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2990
93d11400 2991 return 0;
80bc75f1
JM		 2992}
2993
2994
b088cf82
JM		 2995#ifdef ANDROID
2996static int android_genl_ctrl_resolve(struct nl_handle *handle,
2997 const char *name)
2998{
2999 /*
3000 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
3001 * need to work around that.
3002 */
3003 struct nl_cache *cache = NULL;
3004 struct genl_family *nl80211 = NULL;
3005 int id = -1;
3006
3007 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
3008 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
3009 "netlink cache");
3010 goto fail;
3011 }
3012
3013 nl80211 = genl_ctrl_search_by_name(cache, name);
3014 if (nl80211 == NULL)
3015 goto fail;
3016
3017 id = genl_family_get_id(nl80211);
3018
3019fail:
3020 if (nl80211)
3021 genl_family_put(nl80211);
3022 if (cache)
3023 nl_cache_free(cache);
3024
3025 return id;
3026}
3027#define genl_ctrl_resolve android_genl_ctrl_resolve
3028#endif /* ANDROID */
3029
3030
2a7b66f5
BG		 3031static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
3032{
d6c9aab8
JB		 3033 int ret;
3034
2a7b66f5
BG		 3035 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3036 if (global->nl_cb == NULL) {
3037 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
3038 "callbacks");
3039 return -1;
3040 }
3041
481234cf
JM		 3042 global->nl = nl_create_handle(global->nl_cb, "nl");
3043 if (global->nl == NULL)
d6c9aab8 3044 goto err;
276e2d67 3045
481234cf 3046 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
335d42b1 3047 if (global->nl80211_id < 0) {
276e2d67
BG		 3048 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
3049 "found");
d6c9aab8 3050 goto err;
276e2d67
BG		 3051 }
3052
481234cf
JM		 3053 global->nl_event = nl_create_handle(global->nl_cb, "event");
3054 if (global->nl_event == NULL)
d6c9aab8 3055 goto err;
9fff9fdc 3056
d6c9aab8 3057 ret = nl_get_multicast_id(global, "nl80211", "scan");
97865538 3058 if (ret >= 0)
481234cf 3059 ret = nl_socket_add_membership(global->nl_event, ret);
97865538
JM		 3060 if (ret < 0) {
3061 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3062 "membership for scan events: %d (%s)",
3063 ret, strerror(-ret));
d6c9aab8 3064 goto err;
97865538 3065 }
c2a04078 3066
d6c9aab8 3067 ret = nl_get_multicast_id(global, "nl80211", "mlme");
c2a04078 3068 if (ret >= 0)
481234cf 3069 ret = nl_socket_add_membership(global->nl_event, ret);
c2a04078
JM		 3070 if (ret < 0) {
3071 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3072 "membership for mlme events: %d (%s)",
3073 ret, strerror(-ret));
d6c9aab8 3074 goto err;
c2a04078 3075 }
c2a04078 3076
d6c9aab8 3077 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
33c5deb8 3078 if (ret >= 0)
481234cf 3079 ret = nl_socket_add_membership(global->nl_event, ret);
33c5deb8
JM		 3080 if (ret < 0) {
3081 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3082 "membership for regulatory events: %d (%s)",
3083 ret, strerror(-ret));
3084 /* Continue without regulatory events */
3085 }
3086
d6c9aab8
JB		 3087 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3088 no_seq_check, NULL);
3089 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3090 process_global_event, global);
3091
481234cf 3092 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
d6c9aab8 3093 wpa_driver_nl80211_event_receive,
481234cf 3094 global->nl_cb, global->nl_event);
d6c9aab8
JB		 3095
3096 return 0;
3097
3098err:
3099 nl_destroy_handles(&global->nl_event);
3100 nl_destroy_handles(&global->nl);
3101 nl_cb_put(global->nl_cb);
671a5039 3102 global->nl_cb = NULL;
d6c9aab8
JB		 3103 return -1;
3104}
3105
3106
3107static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3108{
1afc986d
JB		 3109 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3110 if (!drv->nl_cb) {
3111 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
d6c9aab8 3112 return -1;
1afc986d
JB		 3113 }
3114
3115 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3116 no_seq_check, NULL);
f06aedd9
JB		 3117 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3118 process_drv_event, drv);
1afc986d 3119
9fff9fdc 3120 return 0;
9fff9fdc
JM		 3121}
3122
3123
8401a6b0
JM		 3124static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
3125{
8401a6b0 3126 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 3127 /*
3128 * This may be for any interface; use ifdown event to disable
3129 * interface.
3130 */
8401a6b0
JM		 3131}
3132
3133
3134static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
3135{
3136 struct wpa_driver_nl80211_data *drv = ctx;
3137 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 3138 if (linux_set_iface_flags(drv->global->ioctl_sock,
3139 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 3140 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
3141 "after rfkill unblock");
3142 return;
3143 }
a63063b4 3144 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 3145}
3146
3147
6859f1cb
BG		 3148static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
3149{
3150 /* Find phy (radio) to which this interface belongs */
3151 char buf[90], *pos;
3152 int f, rv;
3153
3154 drv->phyname[0] = '\0';
3155 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
3156 drv->first_bss.ifname);
3157 f = open(buf, O_RDONLY);
3158 if (f < 0) {
3159 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
3160 buf, strerror(errno));
3161 return;
3162 }
3163
3164 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
3165 close(f);
3166 if (rv < 0) {
3167 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
3168 buf, strerror(errno));
3169 return;
3170 }
3171
3172 drv->phyname[rv] = '\0';
3173 pos = os_strchr(drv->phyname, '\n');
3174 if (pos)
3175 *pos = '\0';
3176 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
3177 drv->first_bss.ifname, drv->phyname);
3178}
3179
3180
32ab4855
JB		 3181static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
3182 void *eloop_ctx,
3183 void *handle)
3184{
3185 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3186 u8 data[2048];
3187 struct msghdr msg;
3188 struct iovec entry;
cad0f50e 3189 u8 control[512];
32ab4855
JB		 3190 struct cmsghdr *cmsg;
3191 int res, found_ee = 0, found_wifi = 0, acked = 0;
3192 union wpa_event_data event;
3193
3194 memset(&msg, 0, sizeof(msg));
3195 msg.msg_iov = &entry;
3196 msg.msg_iovlen = 1;
3197 entry.iov_base = data;
3198 entry.iov_len = sizeof(data);
3199 msg.msg_control = &control;
3200 msg.msg_controllen = sizeof(control);
3201
3202 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
3203 /* if error or not fitting 802.3 header, return */
3204 if (res < 14)
3205 return;
3206
3207 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
3208 {
3209 if (cmsg->cmsg_level == SOL_SOCKET &&
3210 cmsg->cmsg_type == SCM_WIFI_STATUS) {
3211 int *ack;
3212
3213 found_wifi = 1;
3214 ack = (void *)CMSG_DATA(cmsg);
3215 acked = *ack;
3216 }
3217
3218 if (cmsg->cmsg_level == SOL_PACKET &&
3219 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
3220 struct sock_extended_err *err =
3221 (struct sock_extended_err *)CMSG_DATA(cmsg);
3222
3223 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
3224 found_ee = 1;
3225 }
3226 }
3227
3228 if (!found_ee || !found_wifi)
3229 return;
3230
3231 memset(&event, 0, sizeof(event));
3232 event.eapol_tx_status.dst = data;
3233 event.eapol_tx_status.data = data + 14;
3234 event.eapol_tx_status.data_len = res - 14;
3235 event.eapol_tx_status.ack = acked;
3236 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
3237}
3238
3239
cc7a48d1
JB		 3240static int nl80211_init_bss(struct i802_bss *bss)
3241{
3242 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3243 if (!bss->nl_cb)
3244 return -1;
3245
3246 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3247 no_seq_check, NULL);
3248 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3249 process_bss_event, bss);
3250
3251 return 0;
3252}
3253
3254
3255static void nl80211_destroy_bss(struct i802_bss *bss)
3256{
3257 nl_cb_put(bss->nl_cb);
3258 bss->nl_cb = NULL;
3259}
3260
3261
9fff9fdc
JM		 3262/**
3263 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
3264 * @ctx: context to be used when calling wpa_supplicant functions,
3265 * e.g., wpa_supplicant_event()
3266 * @ifname: interface name, e.g., wlan0
f2ed8023 3267 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 3268 * Returns: Pointer to private data, %NULL on failure
3269 */
f2ed8023
JM		 3270static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
3271 void *global_priv)
9fff9fdc 3272{
9fff9fdc 3273 struct wpa_driver_nl80211_data *drv;
8401a6b0 3274 struct rfkill_config *rcfg;
a2e40bb6 3275 struct i802_bss *bss;
9fff9fdc 3276
a5c696ad
JM		 3277 if (global_priv == NULL)
3278 return NULL;
9fff9fdc
JM		 3279 drv = os_zalloc(sizeof(*drv));
3280 if (drv == NULL)
3281 return NULL;
f2ed8023 3282 drv->global = global_priv;
9fff9fdc 3283 drv->ctx = ctx;
a2e40bb6
FF		 3284 bss = &drv->first_bss;
3285 bss->drv = drv;
a5e1eb20
SE		 3286 bss->ctx = ctx;
3287
a2e40bb6 3288 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 3289 drv->monitor_ifidx = -1;
3290 drv->monitor_sock = -1;
d12dab4c 3291 drv->eapol_tx_sock = -1;
b1f625e0 3292 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 3293
ba2d0d7d 3294 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 3295 os_free(drv);
3296 return NULL;
3297 }
9fff9fdc 3298
cc7a48d1
JB		 3299 if (nl80211_init_bss(bss))
3300 goto failed;
3301
6859f1cb
BG		 3302 nl80211_get_phy_name(drv);
3303
8401a6b0
JM		 3304 rcfg = os_zalloc(sizeof(*rcfg));
3305 if (rcfg == NULL)
3306 goto failed;
3307 rcfg->ctx = drv;
3308 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
3309 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
3310 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
3311 drv->rfkill = rfkill_init(rcfg);
52169389 3312 if (drv->rfkill == NULL) {
8401a6b0 3313 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 3314 os_free(rcfg);
3315 }
8401a6b0 3316
08063178 3317 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 3318 goto failed;
7524cfb1 3319
d12dab4c 3320 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 3321 if (drv->eapol_tx_sock < 0)
3322 goto failed;
3323
3324 if (drv->data_tx_status) {
3325 int enabled = 1;
3326
3327 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3328 &enabled, sizeof(enabled)) < 0) {
3329 wpa_printf(MSG_DEBUG,
3330 "nl80211: wifi status sockopt failed\n");
3331 drv->data_tx_status = 0;
a11241fa
JB		 3332 if (!drv->use_monitor)
3333 drv->capa.flags &=
3334 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
32ab4855
JB		 3335 } else {
3336 eloop_register_read_sock(drv->eapol_tx_sock,
3337 wpa_driver_nl80211_handle_eapol_tx_status,
3338 drv, NULL);
3339 }
3340 }
f10bfc9a 3341
dac12351 3342 if (drv->global) {
c4bb8817 3343 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 3344 drv->in_interface_list = 1;
3345 }
c4bb8817 3346
a2e40bb6 3347 return bss;
7524cfb1 3348
bbaf0837 3349failed:
dac12351 3350 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 3351 return NULL;
3352}
3353
3354
a11241fa 3355static int nl80211_register_frame(struct i802_bss *bss,
5582a5d1 3356 struct nl_handle *nl_handle,
bd94971e 3357 u16 type, const u8 *match, size_t match_len)
58f6fbe0 3358{
a11241fa 3359 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0
JM		 3360 struct nl_msg *msg;
3361 int ret = -1;
3362
3363 msg = nlmsg_alloc();
3364 if (!msg)
3365 return -1;
3366
36488c05
JM		 3367 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3368 type, nl_handle);
3369 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3370 match, match_len);
3371
9fb04070 3372 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0 3373
a11241fa 3374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
bd94971e 3375 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 3376 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3377
d6c9aab8 3378 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 3379 msg = NULL;
3380 if (ret) {
5582a5d1
JB		 3381 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3382 "failed (type=%u): ret=%d (%s)",
3383 type, ret, strerror(-ret));
3384 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 3385 match, match_len);
3386 goto nla_put_failure;
3387 }
3388 ret = 0;
3389nla_put_failure:
3390 nlmsg_free(msg);
3391 return ret;
3392}
3393
3394
a11241fa
JB		 3395static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3396{
3397 struct wpa_driver_nl80211_data *drv = bss->drv;
3398
481234cf 3399 if (bss->nl_mgmt) {
a11241fa 3400 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
36488c05 3401 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
a11241fa
JB		 3402 return -1;
3403 }
3404
481234cf
JM		 3405 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3406 if (bss->nl_mgmt == NULL)
a11241fa
JB		 3407 return -1;
3408
481234cf 3409 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
a11241fa 3410 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 3411 bss->nl_mgmt);
a11241fa
JB		 3412
3413 return 0;
3414}
3415
3416
3417static int nl80211_register_action_frame(struct i802_bss *bss,
bd94971e
JB		 3418 const u8 *match, size_t match_len)
3419{
3420 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
481234cf 3421 return nl80211_register_frame(bss, bss->nl_mgmt,
5582a5d1 3422 type, match, match_len);
bd94971e
JB		 3423}
3424
3425
a11241fa 3426static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
58f6fbe0 3427{
a11241fa
JB		 3428 struct wpa_driver_nl80211_data *drv = bss->drv;
3429
3430 if (nl80211_alloc_mgmt_handle(bss))
3431 return -1;
36488c05
JM		 3432 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3433 "handle %p", bss->nl_mgmt);
a11241fa 3434
4fe9fa0d 3435#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2 3436 /* GAS Initial Request */
a11241fa 3437 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
046b26a2
JM		 3438 return -1;
3439 /* GAS Initial Response */
a11241fa 3440 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
046b26a2 3441 return -1;
18708aad 3442 /* GAS Comeback Request */
a11241fa 3443 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
18708aad
JM		 3444 return -1;
3445 /* GAS Comeback Response */
a11241fa 3446 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
18708aad 3447 return -1;
4fe9fa0d
JM		 3448#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3449#ifdef CONFIG_P2P
046b26a2 3450 /* P2P Public Action */
a11241fa 3451 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3452 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3453 6) < 0)
3454 return -1;
3455 /* P2P Action */
a11241fa 3456 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3457 (u8 *) "\x7f\x50\x6f\x9a\x09",
3458 5) < 0)
3459 return -1;
3460#endif /* CONFIG_P2P */
7d878ca7
JM		 3461#ifdef CONFIG_IEEE80211W
3462 /* SA Query Response */
a11241fa 3463 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
7d878ca7
JM		 3464 return -1;
3465#endif /* CONFIG_IEEE80211W */
35287637
AN		 3466#ifdef CONFIG_TDLS
3467 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3468 /* TDLS Discovery Response */
aa543c0c 3469 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
35287637
AN		 3470 0)
3471 return -1;
3472 }
3473#endif /* CONFIG_TDLS */
046b26a2 3474
7b90c16a 3475 /* FT Action frames */
a11241fa 3476 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
7b90c16a
JM		 3477 return -1;
3478 else
3479 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3480 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3481
71269b37 3482 /* WNM - BSS Transition Management Request */
a11241fa
JB		 3483 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3484 return -1;
bd896433
JM		 3485 /* WNM-Sleep Mode Response */
3486 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
3487 return -1;
a11241fa
JB		 3488
3489 return 0;
3490}
3491
3492
02bb32c3
JB		 3493static int nl80211_register_spurious_class3(struct i802_bss *bss)
3494{
3495 struct wpa_driver_nl80211_data *drv = bss->drv;
3496 struct nl_msg *msg;
3497 int ret = -1;
3498
3499 msg = nlmsg_alloc();
3500 if (!msg)
3501 return -1;
3502
3503 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3504
3505 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3506
481234cf 3507 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
02bb32c3
JB		 3508 msg = NULL;
3509 if (ret) {
3510 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3511 "failed: ret=%d (%s)",
3512 ret, strerror(-ret));
3513 goto nla_put_failure;
3514 }
3515 ret = 0;
3516nla_put_failure:
3517 nlmsg_free(msg);
3518 return ret;
3519}
3520
3521
a11241fa
JB		 3522static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3523{
3524 static const int stypes[] = {
3525 WLAN_FC_STYPE_AUTH,
3526 WLAN_FC_STYPE_ASSOC_REQ,
3527 WLAN_FC_STYPE_REASSOC_REQ,
3528 WLAN_FC_STYPE_DISASSOC,
3529 WLAN_FC_STYPE_DEAUTH,
3530 WLAN_FC_STYPE_ACTION,
3531 WLAN_FC_STYPE_PROBE_REQ,
3532/* Beacon doesn't work as mac80211 doesn't currently allow
3533 * it, but it wouldn't really be the right thing anyway as
3534 * it isn't per interface ... maybe just dump the scan
3535 * results periodically for OLBC?
3536 */
3537// WLAN_FC_STYPE_BEACON,
3538 };
3539 unsigned int i;
3540
3541 if (nl80211_alloc_mgmt_handle(bss))
71269b37 3542 return -1;
36488c05
JM		 3543 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3544 "handle %p", bss->nl_mgmt);
71269b37 3545
a11241fa 3546 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
481234cf 3547 if (nl80211_register_frame(bss, bss->nl_mgmt,
a11241fa
JB		 3548 (WLAN_FC_TYPE_MGMT << 2) |
3549 (stypes[i] << 4),
3550 NULL, 0) < 0) {
3551 goto out_err;
3552 }
3553 }
3554
02bb32c3
JB		 3555 if (nl80211_register_spurious_class3(bss))
3556 goto out_err;
3557
e32ad281
JB		 3558 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3559 goto out_err;
3560
58f6fbe0 3561 return 0;
a11241fa
JB		 3562
3563out_err:
481234cf 3564 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa
JB		 3565 nl_destroy_handles(&bss->nl_mgmt);
3566 return -1;
3567}
3568
3569
a6cc0602
JM		 3570static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3571{
3572 if (nl80211_alloc_mgmt_handle(bss))
3573 return -1;
3574 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3575 "handle %p (device SME)", bss->nl_mgmt);
3576
3577 if (nl80211_register_frame(bss, bss->nl_mgmt,
3578 (WLAN_FC_TYPE_MGMT << 2) |
3579 (WLAN_FC_STYPE_ACTION << 4),
3580 NULL, 0) < 0)
3581 goto out_err;
3582
3583 return 0;
3584
3585out_err:
3586 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3587 nl_destroy_handles(&bss->nl_mgmt);
3588 return -1;
3589}
3590
3591
36488c05 3592static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
a11241fa 3593{
481234cf 3594 if (bss->nl_mgmt == NULL)
a11241fa 3595 return;
36488c05
JM		 3596 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
3597 "(%s)", bss->nl_mgmt, reason);
481234cf 3598 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa 3599 nl_destroy_handles(&bss->nl_mgmt);
e32ad281
JB		 3600
3601 nl80211_put_wiphy_data_ap(bss);
58f6fbe0
JM		 3602}
3603
3604
8401a6b0
JM		 3605static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3606{
3607 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3608}
3609
3610
362f781e 3611static int
7524cfb1
JM		 3612wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
3613{
a2e40bb6 3614 struct i802_bss *bss = &drv->first_bss;
8401a6b0 3615 int send_rfkill_event = 0;
a2e40bb6
FF		 3616
3617 drv->ifindex = if_nametoindex(bss->ifname);
3618 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 3619
bbaf0837 3620#ifndef HOSTAPD
ff6a158b
JM		 3621 /*
3622 * Make sure the interface starts up in station mode unless this is a
3623 * dynamically added interface (e.g., P2P) that was already configured
3624 * with proper iftype.
3625 */
a5c696ad 3626 if (drv->ifindex != drv->global->if_add_ifindex &&
b1f625e0 3627 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 3628 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 3629 "use managed mode");
6e8183d7 3630 return -1;
a87c9d96
JM		 3631 }
3632
c81eff1a 3633 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 3634 if (rfkill_is_blocked(drv->rfkill)) {
3635 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
3636 "interface '%s' due to rfkill",
3637 bss->ifname);
a63063b4 3638 drv->if_disabled = 1;
8401a6b0
JM		 3639 send_rfkill_event = 1;
3640 } else {
3641 wpa_printf(MSG_ERROR, "nl80211: Could not set "
3642 "interface '%s' UP", bss->ifname);
3643 return -1;
3644 }
362f781e 3645 }
3f5285e8 3646
36d84860 3647 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 3648 1, IF_OPER_DORMANT);
bbaf0837 3649#endif /* HOSTAPD */
362f781e 3650
2fee890a
JM		 3651 if (wpa_driver_nl80211_capa(drv))
3652 return -1;
3653
c81eff1a 3654 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
341eebee 3655 bss->addr))
2136f480 3656 return -1;
f2ed8023 3657
8401a6b0
JM		 3658 if (send_rfkill_event) {
3659 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
3660 drv, drv->ctx);
3661 }
3662
362f781e 3663 return 0;
3f5285e8
JM		 3664}
3665
3666
8a27af5c
JM		 3667static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
3668{
3669 struct nl_msg *msg;
3670
3671 msg = nlmsg_alloc();
3672 if (!msg)
3673 return -ENOMEM;
3674
9fb04070 3675 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 3676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3677
3678 return send_and_recv_msgs(drv, msg, NULL, NULL);
3679 nla_put_failure:
5883168a 3680 nlmsg_free(msg);
8a27af5c
JM		 3681 return -ENOBUFS;
3682}
8a27af5c
JM		 3683
3684
3f5285e8 3685/**
7e5ba1b9 3686 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
9ebce9c5 3687 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 3688 *
3689 * Shut down driver interface and processing of driver events. Free
3690 * private data buffer if one was allocated in wpa_driver_nl80211_init().
3691 */
9ebce9c5 3692static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
3f5285e8 3693{
a2e40bb6 3694 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 3695
873d0fcf 3696 bss->in_deinit = 1;
32ab4855
JB		 3697 if (drv->data_tx_status)
3698 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 3699 if (drv->eapol_tx_sock >= 0)
3700 close(drv->eapol_tx_sock);
f10bfc9a 3701
481234cf 3702 if (bss->nl_preq)
5582a5d1 3703 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 3704 if (bss->added_if_into_bridge) {
c81eff1a
BG		 3705 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
3706 bss->ifname) < 0)
94627f6c
JM		 3707 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3708 "interface %s from bridge %s: %s",
e17a2477 3709 bss->ifname, bss->brname, strerror(errno));
94627f6c 3710 }
e17a2477 3711 if (bss->added_bridge) {
c81eff1a 3712 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 3713 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3714 "bridge %s: %s",
e17a2477 3715 bss->brname, strerror(errno));
94627f6c
JM		 3716 }
3717
460456f8 3718 nl80211_remove_monitor_interface(drv);
8a27af5c 3719
b1f625e0 3720 if (is_ap_interface(drv->nlmode))
8a27af5c 3721 wpa_driver_nl80211_del_beacon(drv);
0915d02c 3722
bbaf0837
JM		 3723#ifdef HOSTAPD
3724 if (drv->last_freq_ht) {
3725 /* Clear HT flags from the driver */
3726 struct hostapd_freq_params freq;
3727 os_memset(&freq, 0, sizeof(freq));
3728 freq.freq = drv->last_freq;
9ebce9c5 3729 wpa_driver_nl80211_set_freq(bss, &freq);
bbaf0837
JM		 3730 }
3731
bbaf0837
JM		 3732 if (drv->eapol_sock >= 0) {
3733 eloop_unregister_read_sock(drv->eapol_sock);
3734 close(drv->eapol_sock);
3735 }
3736
3737 if (drv->if_indices != drv->default_if_indices)
3738 os_free(drv->if_indices);
1b648c7e 3739#endif /* HOSTAPD */
3f5285e8 3740
b3af99d2 3741 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 3742 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3743
36d84860
BG		 3744 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
3745 IF_OPER_UP);
8401a6b0 3746 rfkill_deinit(drv->rfkill);
3f5285e8 3747
bbaf0837
JM		 3748 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3749
c81eff1a 3750 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
b1f625e0 3751 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
36488c05 3752 nl80211_mgmt_unsubscribe(bss, "deinit");
3f5285e8 3753
1afc986d 3754 nl_cb_put(drv->nl_cb);
3f5285e8 3755
cc7a48d1
JB		 3756 nl80211_destroy_bss(&drv->first_bss);
3757
3812464c
JM		 3758 os_free(drv->filter_ssids);
3759
536fd62d
JM		 3760 os_free(drv->auth_ie);
3761
dac12351 3762 if (drv->in_interface_list)
f2ed8023
JM		 3763 dl_list_del(&drv->list);
3764
8cd6b7bc
JB		 3765 os_free(drv->extended_capa);
3766 os_free(drv->extended_capa_mask);
3f5285e8
JM		 3767 os_free(drv);
3768}
3769
3770
3771/**
3772 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 3773 * @eloop_ctx: Driver private data
3f5285e8
JM		 3774 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
3775 *
3776 * This function can be used as registered timeout when starting a scan to
3777 * generate a scan completed event if the driver does not report this.
3778 */
3779static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
3780{
ad1e68e6 3781 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 3782 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 3783 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 3784 drv->ap_scan_as_station);
3785 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 3786 }
3f5285e8
JM		 3787 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
3788 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
3789}
3790
3791
95ac3bf4
JM		 3792static struct nl_msg *
3793nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
3794 struct wpa_driver_scan_params *params)
3f5285e8 3795{
95ac3bf4 3796 struct nl_msg *msg;
6a1063e0 3797 size_t i;
3f5285e8 3798
0e75527f 3799 msg = nlmsg_alloc();
f0494d0f 3800 if (!msg)
95ac3bf4 3801 return NULL;
3812464c 3802
95ac3bf4 3803 nl80211_cmd(drv, msg, 0, cmd);
0e75527f 3804
95ac3bf4
JM		 3805 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0)
3806 goto fail;
3f5285e8 3807
f0494d0f 3808 if (params->num_ssids) {
8970bae8
JB		 3809 struct nlattr *ssids;
3810
3811 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
f0494d0f 3812 if (ssids == NULL)
95ac3bf4 3813 goto fail;
f0494d0f
JM		 3814 for (i = 0; i < params->num_ssids; i++) {
3815 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
3816 params->ssids[i].ssid,
3817 params->ssids[i].ssid_len);
8970bae8
JB		 3818 if (nla_put(msg, i + 1, params->ssids[i].ssid_len,
3819 params->ssids[i].ssid) < 0)
95ac3bf4 3820 goto fail;
f0494d0f 3821 }
8970bae8 3822 nla_nest_end(msg, ssids);
3f5285e8
JM		 3823 }
3824
d173df52 3825 if (params->extra_ies) {
3b1c7bfd
JM		 3826 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
3827 params->extra_ies, params->extra_ies_len);
95ac3bf4
JM		 3828 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
3829 params->extra_ies) < 0)
3830 goto fail;
d173df52
JM		 3831 }
3832
d3a98225 3833 if (params->freqs) {
8970bae8
JB		 3834 struct nlattr *freqs;
3835 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
f0494d0f 3836 if (freqs == NULL)
95ac3bf4 3837 goto fail;
9fad706c
JM		 3838 for (i = 0; params->freqs[i]; i++) {
3839 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3840 "MHz", params->freqs[i]);
8970bae8 3841 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0)
95ac3bf4 3842 goto fail;
9fad706c 3843 }
8970bae8 3844 nla_nest_end(msg, freqs);
d3a98225
JM		 3845 }
3846
95ac3bf4
JM		 3847 os_free(drv->filter_ssids);
3848 drv->filter_ssids = params->filter_ssids;
3849 params->filter_ssids = NULL;
3850 drv->num_filter_ssids = params->num_filter_ssids;
3851
3852 return msg;
3853
3854fail:
3855 nlmsg_free(msg);
3856 return NULL;
3857}
3858
3859
3860/**
3861 * wpa_driver_nl80211_scan - Request the driver to initiate scan
9ebce9c5 3862 * @bss: Pointer to private driver data from wpa_driver_nl80211_init()
95ac3bf4
JM		 3863 * @params: Scan parameters
3864 * Returns: 0 on success, -1 on failure
3865 */
9ebce9c5 3866static int wpa_driver_nl80211_scan(struct i802_bss *bss,
95ac3bf4
JM		 3867 struct wpa_driver_scan_params *params)
3868{
95ac3bf4
JM		 3869 struct wpa_driver_nl80211_data *drv = bss->drv;
3870 int ret = -1, timeout;
8970bae8 3871 struct nl_msg *msg = NULL;
95ac3bf4 3872
565110cd 3873 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request");
95ac3bf4
JM		 3874 drv->scan_for_auth = 0;
3875
3876 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params);
3877 if (!msg)
3878 return -1;
3879
47185fc7 3880 if (params->p2p_probe) {
8970bae8
JB		 3881 struct nlattr *rates;
3882
8a6a1e1b
JM		 3883 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
3884
8970bae8 3885 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES);
f0494d0f
JM		 3886 if (rates == NULL)
3887 goto nla_put_failure;
3888
47185fc7
RM		 3889 /*
3890 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
3891 * by masking out everything else apart from the OFDM rates 6,
3892 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
3893 * rates are left enabled.
3894 */
8970bae8 3895 NLA_PUT(msg, NL80211_BAND_2GHZ, 8,
47185fc7 3896 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8970bae8 3897 nla_nest_end(msg, rates);
970fa12e
RM		 3898
3899 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 3900 }
3901
0e75527f
JM		 3902 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3903 msg = NULL;
3904 if (ret) {
3905 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
3906 "(%s)", ret, strerror(-ret));
ad1e68e6 3907#ifdef HOSTAPD
b1f625e0 3908 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 3909 /*
3910 * mac80211 does not allow scan requests in AP mode, so
3911 * try to do this in station mode.
3912 */
b1f625e0
EP		 3913 if (wpa_driver_nl80211_set_mode(
3914 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 3915 goto nla_put_failure;
3916
085b29f1 3917 if (wpa_driver_nl80211_scan(bss, params)) {
b1f625e0 3918 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 3919 goto nla_put_failure;
3920 }
3921
3922 /* Restore AP mode when processing scan results */
b1f625e0 3923 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 3924 ret = 0;
3925 } else
3926 goto nla_put_failure;
3927#else /* HOSTAPD */
0e75527f 3928 goto nla_put_failure;
ad1e68e6 3929#endif /* HOSTAPD */
3f5285e8
JM		 3930 }
3931
3932 /* Not all drivers generate "scan completed" wireless event, so try to
3933 * read results after a timeout. */
0e75527f 3934 timeout = 10;
3f5285e8
JM		 3935 if (drv->scan_complete_events) {
3936 /*
d173df52
JM		 3937 * The driver seems to deliver events to notify when scan is
3938 * complete, so use longer timeout to avoid race conditions
3939 * with scanning and following association request.
3f5285e8
JM		 3940 */
3941 timeout = 30;
3942 }
3943 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
3944 "seconds", ret, timeout);
3945 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 3946 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
3947 drv, drv->ctx);
3f5285e8 3948
0e75527f 3949nla_put_failure:
0e75527f 3950 nlmsg_free(msg);
3f5285e8
JM		 3951 return ret;
3952}
3953
3954
d21c63b9
LC		 3955/**
3956 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
3957 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3958 * @params: Scan parameters
3959 * @interval: Interval between scan cycles in milliseconds
3960 * Returns: 0 on success, -1 on failure or if not supported
3961 */
3962static int wpa_driver_nl80211_sched_scan(void *priv,
3963 struct wpa_driver_scan_params *params,
3964 u32 interval)
3965{
3966 struct i802_bss *bss = priv;
3967 struct wpa_driver_nl80211_data *drv = bss->drv;
6afbc3d6 3968 int ret = -1;
95ac3bf4 3969 struct nl_msg *msg;
d21c63b9
LC		 3970 size_t i;
3971
565110cd
JM		 3972 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request");
3973
216eede8
DS		 3974#ifdef ANDROID
3975 if (!drv->capa.sched_scan_supported)
3976 return android_pno_start(bss, params);
3977#endif /* ANDROID */
3978
95ac3bf4 3979 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params);
6afbc3d6
JM		 3980 if (!msg)
3981 goto nla_put_failure;
d21c63b9 3982
d21c63b9
LC		 3983 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
3984
bf8d6d24
TP		 3985 if ((drv->num_filter_ssids &&
3986 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
3987 params->filter_rssi) {
8970bae8
JB		 3988 struct nlattr *match_sets;
3989 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
6afbc3d6
JM		 3990 if (match_sets == NULL)
3991 goto nla_put_failure;
bd525934
LC		 3992
3993 for (i = 0; i < drv->num_filter_ssids; i++) {
8970bae8 3994 struct nlattr *match_set_ssid;
bd525934
LC		 3995 wpa_hexdump_ascii(MSG_MSGDUMP,
3996 "nl80211: Sched scan filter SSID",
3997 drv->filter_ssids[i].ssid,
3998 drv->filter_ssids[i].ssid_len);
3999
8970bae8 4000 match_set_ssid = nla_nest_start(msg, i + 1);
6afbc3d6
JM		 4001 if (match_set_ssid == NULL)
4002 goto nla_put_failure;
8970bae8 4003 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
bd525934
LC		 4004 drv->filter_ssids[i].ssid_len,
4005 drv->filter_ssids[i].ssid);
4006
adc96dc2 4007 nla_nest_end(msg, match_set_ssid);
bd525934
LC		 4008 }
4009
bf8d6d24 4010 if (params->filter_rssi) {
8970bae8
JB		 4011 struct nlattr *match_set_rssi;
4012 match_set_rssi = nla_nest_start(msg, 0);
6afbc3d6
JM		 4013 if (match_set_rssi == NULL)
4014 goto nla_put_failure;
8970bae8 4015 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
bf8d6d24
TP		 4016 params->filter_rssi);
4017 wpa_printf(MSG_MSGDUMP,
4018 "nl80211: Sched scan RSSI filter %d dBm",
4019 params->filter_rssi);
8970bae8 4020 nla_nest_end(msg, match_set_rssi);
bf8d6d24
TP		 4021 }
4022
8970bae8 4023 nla_nest_end(msg, match_sets);
bd525934
LC		 4024 }
4025
d21c63b9
LC		 4026 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4027
4028 /* TODO: if we get an error here, we should fall back to normal scan */
4029
4030 msg = NULL;
4031 if (ret) {
4032 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
4033 "ret=%d (%s)", ret, strerror(-ret));
4034 goto nla_put_failure;
4035 }
4036
4037 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
4038 "scan interval %d msec", ret, interval);
4039
4040nla_put_failure:
d21c63b9 4041 nlmsg_free(msg);
d21c63b9
LC		 4042 return ret;
4043}
4044
4045
4046/**
4047 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
4048 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4049 * Returns: 0 on success, -1 on failure or if not supported
4050 */
4051static int wpa_driver_nl80211_stop_sched_scan(void *priv)
4052{
4053 struct i802_bss *bss = priv;
4054 struct wpa_driver_nl80211_data *drv = bss->drv;
4055 int ret = 0;
4056 struct nl_msg *msg;
4057
216eede8
DS		 4058#ifdef ANDROID
4059 if (!drv->capa.sched_scan_supported)
4060 return android_pno_stop(bss);
4061#endif /* ANDROID */
4062
d21c63b9
LC		 4063 msg = nlmsg_alloc();
4064 if (!msg)
4065 return -1;
4066
9fb04070 4067 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 4068
4069 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4070
4071 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4072 msg = NULL;
4073 if (ret) {
4074 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
4075 "ret=%d (%s)", ret, strerror(-ret));
4076 goto nla_put_failure;
4077 }
4078
4079 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
4080
4081nla_put_failure:
4082 nlmsg_free(msg);
4083 return ret;
4084}
4085
4086
3812464c
JM		 4087static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
4088{
4089 const u8 *end, *pos;
4090
4091 if (ies == NULL)
4092 return NULL;
4093
4094 pos = ies;
4095 end = ies + ies_len;
4096
4097 while (pos + 1 < end) {
4098 if (pos + 2 + pos[1] > end)
4099 break;
4100 if (pos[0] == ie)
4101 return pos;
4102 pos += 2 + pos[1];
4103 }
4104
4105 return NULL;
4106}
4107
4108
4109static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
4110 const u8 *ie, size_t ie_len)
4111{
4112 const u8 *ssid;
4113 size_t i;
4114
4115 if (drv->filter_ssids == NULL)
4116 return 0;
4117
4118 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
4119 if (ssid == NULL)
4120 return 1;
4121
4122 for (i = 0; i < drv->num_filter_ssids; i++) {
4123 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
4124 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
4125 0)
4126 return 0;
4127 }
4128
4129 return 1;
4130}
4131
4132
b3db1e1c 4133static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 4134{
b3db1e1c
JM		 4135 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4136 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4137 struct nlattr *bss[NL80211_BSS_MAX + 1];
4138 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
4139 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
4140 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
4141 [NL80211_BSS_TSF] = { .type = NLA_U64 },
4142 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
4143 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
4144 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
4145 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
4146 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 4147 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 4148 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 4149 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 4150 };
3812464c
JM		 4151 struct nl80211_bss_info_arg *_arg = arg;
4152 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 4153 struct wpa_scan_res **tmp;
4154 struct wpa_scan_res *r;
8c090654
JM		 4155 const u8 *ie, *beacon_ie;
4156 size_t ie_len, beacon_ie_len;
4157 u8 *pos;
46957a9b 4158 size_t i;
3f5285e8 4159
b3db1e1c
JM		 4160 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4161 genlmsg_attrlen(gnlh, 0), NULL);
4162 if (!tb[NL80211_ATTR_BSS])
4163 return NL_SKIP;
4164 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
4165 bss_policy))
4166 return NL_SKIP;
f5a8d422
JM		 4167 if (bss[NL80211_BSS_STATUS]) {
4168 enum nl80211_bss_status status;
4169 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4170 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4171 bss[NL80211_BSS_FREQUENCY]) {
4172 _arg->assoc_freq =
4173 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4174 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
4175 _arg->assoc_freq);
4176 }
20f5a4c2
JM		 4177 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4178 bss[NL80211_BSS_BSSID]) {
4179 os_memcpy(_arg->assoc_bssid,
4180 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
4181 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
4182 MACSTR, MAC2STR(_arg->assoc_bssid));
4183 }
f5a8d422
JM		 4184 }
4185 if (!res)
4186 return NL_SKIP;
b3db1e1c
JM		 4187 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
4188 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4189 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4190 } else {
4191 ie = NULL;
4192 ie_len = 0;
4193 }
8c090654
JM		 4194 if (bss[NL80211_BSS_BEACON_IES]) {
4195 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
4196 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
4197 } else {
4198 beacon_ie = NULL;
4199 beacon_ie_len = 0;
4200 }
3f5285e8 4201
3812464c
JM		 4202 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
4203 ie ? ie_len : beacon_ie_len))
4204 return NL_SKIP;
4205
8c090654 4206 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 4207 if (r == NULL)
b3db1e1c
JM		 4208 return NL_SKIP;
4209 if (bss[NL80211_BSS_BSSID])
4210 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
4211 ETH_ALEN);
4212 if (bss[NL80211_BSS_FREQUENCY])
4213 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4214 if (bss[NL80211_BSS_BEACON_INTERVAL])
4215 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
4216 if (bss[NL80211_BSS_CAPABILITY])
4217 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 4218 r->flags |= WPA_SCAN_NOISE_INVALID;
4219 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 4220 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 4221 r->level /= 100; /* mBm to dBm */
4222 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
4223 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
4224 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 4225 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 4226 } else
4227 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 4228 if (bss[NL80211_BSS_TSF])
4229 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 4230 if (bss[NL80211_BSS_SEEN_MS_AGO])
4231 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 4232 r->ie_len = ie_len;
8c090654
JM		 4233 pos = (u8 *) (r + 1);
4234 if (ie) {
4235 os_memcpy(pos, ie, ie_len);
4236 pos += ie_len;
4237 }
4238 r->beacon_ie_len = beacon_ie_len;
4239 if (beacon_ie)
4240 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 4241
e6b8efeb
JM		 4242 if (bss[NL80211_BSS_STATUS]) {
4243 enum nl80211_bss_status status;
4244 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4245 switch (status) {
4246 case NL80211_BSS_STATUS_AUTHENTICATED:
4247 r->flags |= WPA_SCAN_AUTHENTICATED;
4248 break;
4249 case NL80211_BSS_STATUS_ASSOCIATED:
4250 r->flags |= WPA_SCAN_ASSOCIATED;
4251 break;
4252 default:
4253 break;
4254 }
4255 }
4256
46957a9b
JM		 4257 /*
4258 * cfg80211 maintains separate BSS table entries for APs if the same
4259 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
4260 * not use frequency as a separate key in the BSS table, so filter out
4261 * duplicated entries. Prefer associated BSS entry in such a case in
4262 * order to get the correct frequency into the BSS table.
4263 */
4264 for (i = 0; i < res->num; i++) {
4265 const u8 *s1, *s2;
4266 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
4267 continue;
4268
4269 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
4270 res->res[i]->ie_len, WLAN_EID_SSID);
4271 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
4272 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
4273 os_memcmp(s1, s2, 2 + s1[1]) != 0)
4274 continue;
4275
4276 /* Same BSSID,SSID was already included in scan results */
4277 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
4278 "for " MACSTR, MAC2STR(r->bssid));
4279
4280 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
4281 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
4282 os_free(res->res[i]);
4283 res->res[i] = r;
4284 } else
4285 os_free(r);
4286 return NL_SKIP;
4287 }
4288
067ffa26
JM		 4289 tmp = os_realloc_array(res->res, res->num + 1,
4290 sizeof(struct wpa_scan_res *));
3f5285e8
JM		 4291 if (tmp == NULL) {
4292 os_free(r);
b3db1e1c 4293 return NL_SKIP;
3f5285e8
JM		 4294 }
4295 tmp[res->num++] = r;
4296 res->res = tmp;
b3db1e1c
JM		 4297
4298 return NL_SKIP;
3f5285e8 4299}
b3db1e1c 4300
3f5285e8 4301
d72aad94
JM		 4302static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
4303 const u8 *addr)
4304{
4305 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
4306 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 4307 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 4308 wpa_driver_nl80211_mlme(drv, addr,
4309 NL80211_CMD_DEAUTHENTICATE,
77339912 4310 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 4311 }
4312}
4313
4314
e6b8efeb
JM		 4315static void wpa_driver_nl80211_check_bss_status(
4316 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
4317{
4318 size_t i;
4319
4320 for (i = 0; i < res->num; i++) {
4321 struct wpa_scan_res *r = res->res[i];
4322 if (r->flags & WPA_SCAN_AUTHENTICATED) {
4323 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4324 "indicates BSS status with " MACSTR
4325 " as authenticated",
4326 MAC2STR(r->bssid));
b1f625e0 4327 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4328 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
4329 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
4330 0) {
4331 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
4332 " in local state (auth=" MACSTR
4333 " assoc=" MACSTR ")",
4334 MAC2STR(drv->auth_bssid),
4335 MAC2STR(drv->bssid));
582507be 4336 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 4337 }
4338 }
4339
4340 if (r->flags & WPA_SCAN_ASSOCIATED) {
4341 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4342 "indicate BSS status with " MACSTR
4343 " as associated",
4344 MAC2STR(r->bssid));
b1f625e0 4345 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4346 !drv->associated) {
4347 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4348 "(not associated) does not match "
4349 "with BSS state");
d72aad94 4350 clear_state_mismatch(drv, r->bssid);
b1f625e0 4351 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4352 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4353 0) {
4354 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4355 "(associated with " MACSTR ") does "
4356 "not match with BSS state",
d72aad94
JM		 4357 MAC2STR(drv->bssid));
4358 clear_state_mismatch(drv, r->bssid);
4359 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 4360 }
4361 }
4362 }
4363}
4364
4365
7e5ba1b9 4366static struct wpa_scan_results *
8856462d 4367nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 4368{
b3db1e1c 4369 struct nl_msg *msg;
3f5285e8 4370 struct wpa_scan_results *res;
b3db1e1c 4371 int ret;
3812464c 4372 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 4373
4374 res = os_zalloc(sizeof(*res));
b3db1e1c 4375 if (res == NULL)
8e2c104f 4376 return NULL;
b3db1e1c
JM		 4377 msg = nlmsg_alloc();
4378 if (!msg)
4379 goto nla_put_failure;
3f5285e8 4380
9fb04070 4381 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 4382 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 4383
3812464c
JM		 4384 arg.drv = drv;
4385 arg.res = res;
4386 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 4387 msg = NULL;
4388 if (ret == 0) {
577db0ae
GM		 4389 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4390 "BSSes)", (unsigned long) res->num);
4391 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 4392 return res;
3f5285e8 4393 }
b3db1e1c
JM		 4394 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4395 "(%s)", ret, strerror(-ret));
4396nla_put_failure:
4397 nlmsg_free(msg);
4398 wpa_scan_results_free(res);
4399 return NULL;
3f5285e8
JM		 4400}
4401
4402
8856462d
JM		 4403/**
4404 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4405 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4406 * Returns: Scan results on success, -1 on failure
4407 */
4408static struct wpa_scan_results *
4409wpa_driver_nl80211_get_scan_results(void *priv)
4410{
a2e40bb6
FF		 4411 struct i802_bss *bss = priv;
4412 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 4413 struct wpa_scan_results *res;
4414
4415 res = nl80211_get_scan_results(drv);
4416 if (res)
4417 wpa_driver_nl80211_check_bss_status(drv, res);
4418 return res;
4419}
4420
4421
4422static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4423{
4424 struct wpa_scan_results *res;
4425 size_t i;
4426
4427 res = nl80211_get_scan_results(drv);
4428 if (res == NULL) {
4429 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4430 return;
4431 }
4432
4433 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4434 for (i = 0; i < res->num; i++) {
4435 struct wpa_scan_res *r = res->res[i];
4436 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4437 (int) i, (int) res->num, MAC2STR(r->bssid),
4438 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4439 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4440 }
4441
4442 wpa_scan_results_free(res);
4443}
4444
4445
9ebce9c5 4446static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
71934751
JM		 4447 enum wpa_alg alg, const u8 *addr,
4448 int key_idx, int set_tx,
642187d6
JM		 4449 const u8 *seq, size_t seq_len,
4450 const u8 *key, size_t key_len)
3f5285e8 4451{
a2e40bb6 4452 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 4453 int ifindex = if_nametoindex(ifname);
3f5285e8 4454 struct nl_msg *msg;
1ad1cdc2 4455 int ret;
3f5285e8 4456
1ad1cdc2
JM		 4457 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
4458 "set_tx=%d seq_len=%lu key_len=%lu",
4459 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8 4460 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185
JM		 4461#ifdef CONFIG_TDLS
4462 if (key_idx == -1)
4463 key_idx = 0;
4464#endif /* CONFIG_TDLS */
3f5285e8
JM		 4465
4466 msg = nlmsg_alloc();
1ad1cdc2
JM		 4467 if (!msg)
4468 return -ENOMEM;
3f5285e8
JM		 4469
4470 if (alg == WPA_ALG_NONE) {
9fb04070 4471 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 4472 } else {
9fb04070 4473 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 4474 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 4475 switch (alg) {
4476 case WPA_ALG_WEP:
4477 if (key_len == 5)
4478 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4479 WLAN_CIPHER_SUITE_WEP40);
4480 else
4481 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4482 WLAN_CIPHER_SUITE_WEP104);
4483 break;
4484 case WPA_ALG_TKIP:
4485 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4486 WLAN_CIPHER_SUITE_TKIP);
4487 break;
4488 case WPA_ALG_CCMP:
4489 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4490 WLAN_CIPHER_SUITE_CCMP);
4491 break;
eb7719ff
JM		 4492 case WPA_ALG_GCMP:
4493 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4494 WLAN_CIPHER_SUITE_GCMP);
4495 break;
d723bab4
JM		 4496 case WPA_ALG_IGTK:
4497 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4498 WLAN_CIPHER_SUITE_AES_CMAC);
4499 break;
369c8d7b
JM		 4500 case WPA_ALG_SMS4:
4501 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4502 WLAN_CIPHER_SUITE_SMS4);
4503 break;
4504 case WPA_ALG_KRK:
4505 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4506 WLAN_CIPHER_SUITE_KRK);
4507 break;
d723bab4
JM		 4508 default:
4509 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4510 "algorithm %d", __func__, alg);
3f5285e8
JM		 4511 nlmsg_free(msg);
4512 return -1;
4513 }
4514 }
4515
849ef835 4516 if (seq && seq_len)
1ad1cdc2
JM		 4517 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4518
0382097e 4519 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 4520 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4521 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 4522
4523 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4524 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4525 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4526 NL80211_KEYTYPE_GROUP);
4527 }
60ea8187 4528 } else if (addr && is_broadcast_ether_addr(addr)) {
8970bae8
JB		 4529 struct nlattr *types;
4530
60ea8187 4531 wpa_printf(MSG_DEBUG, " broadcast key");
8970bae8
JB		 4532
4533 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 4534 if (!types)
4535 goto nla_put_failure;
8970bae8
JB		 4536 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4537 nla_nest_end(msg, types);
3f5285e8
JM		 4538 }
4539 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 4540 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 4541
1ad1cdc2 4542 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 4543 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 4544 ret = 0;
4545 if (ret)
4546 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4547 ret, strerror(-ret));
3f5285e8 4548
1ad1cdc2
JM		 4549 /*
4550 * If we failed or don't need to set the default TX key (below),
4551 * we're done here.
4552 */
4553 if (ret || !set_tx || alg == WPA_ALG_NONE)
4554 return ret;
b1f625e0 4555 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 4556 !is_broadcast_ether_addr(addr))
de12717a 4557 return ret;
3f5285e8 4558
1ad1cdc2
JM		 4559 msg = nlmsg_alloc();
4560 if (!msg)
4561 return -ENOMEM;
3f5285e8 4562
9fb04070 4563 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 4564 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4565 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4566 if (alg == WPA_ALG_IGTK)
4567 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
4568 else
4569 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187 4570 if (addr && is_broadcast_ether_addr(addr)) {
8970bae8
JB		 4571 struct nlattr *types;
4572
4573 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 4574 if (!types)
4575 goto nla_put_failure;
8970bae8
JB		 4576 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4577 nla_nest_end(msg, types);
60ea8187 4578 } else if (addr) {
8970bae8
JB		 4579 struct nlattr *types;
4580
4581 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 4582 if (!types)
4583 goto nla_put_failure;
8970bae8
JB		 4584 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST);
4585 nla_nest_end(msg, types);
60ea8187 4586 }
3f5285e8 4587
1ad1cdc2
JM		 4588 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4589 if (ret == -ENOENT)
4590 ret = 0;
4591 if (ret)
4592 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
4593 "err=%d %s)", ret, strerror(-ret));
4594 return ret;
3f5285e8
JM		 4595
4596nla_put_failure:
5883168a 4597 nlmsg_free(msg);
6241fcb1 4598 return -ENOBUFS;
3f5285e8
JM		 4599}
4600
4601
71934751 4602static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 4603 int key_idx, int defkey,
4604 const u8 *seq, size_t seq_len,
4605 const u8 *key, size_t key_len)
4606{
4607 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
4608 if (!key_attr)
4609 return -1;
4610
4611 if (defkey && alg == WPA_ALG_IGTK)
4612 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
4613 else if (defkey)
4614 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4615
4616 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
4617
d723bab4
JM		 4618 switch (alg) {
4619 case WPA_ALG_WEP:
4620 if (key_len == 5)
2aa5f847
JM		 4621 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4622 WLAN_CIPHER_SUITE_WEP40);
d723bab4 4623 else
2aa5f847
JM		 4624 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4625 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 4626 break;
4627 case WPA_ALG_TKIP:
2aa5f847 4628 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 4629 break;
4630 case WPA_ALG_CCMP:
2aa5f847 4631 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4 4632 break;
eb7719ff
JM		 4633 case WPA_ALG_GCMP:
4634 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP);
4635 break;
d723bab4 4636 case WPA_ALG_IGTK:
2aa5f847
JM		 4637 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4638 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 4639 break;
4640 default:
4641 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4642 "algorithm %d", __func__, alg);
0194fedb 4643 return -1;
d723bab4 4644 }
0194fedb
JB		 4645
4646 if (seq && seq_len)
4647 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
4648
4649 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
4650
4651 nla_nest_end(msg, key_attr);
4652
4653 return 0;
4654 nla_put_failure:
4655 return -1;
4656}
4657
c811d5bc 4658
cfaab580
ZY		 4659static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
4660 struct nl_msg *msg)
4661{
4662 int i, privacy = 0;
4663 struct nlattr *nl_keys, *nl_key;
4664
4665 for (i = 0; i < 4; i++) {
4666 if (!params->wep_key[i])
4667 continue;
4668 privacy = 1;
4669 break;
4670 }
ce04af5a
JM		 4671 if (params->wps == WPS_MODE_PRIVACY)
4672 privacy = 1;
4673 if (params->pairwise_suite &&
4674 params->pairwise_suite != WPA_CIPHER_NONE)
4675 privacy = 1;
4676
cfaab580
ZY		 4677 if (!privacy)
4678 return 0;
4679
4680 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4681
4682 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
4683 if (!nl_keys)
4684 goto nla_put_failure;
4685
4686 for (i = 0; i < 4; i++) {
4687 if (!params->wep_key[i])
4688 continue;
4689
4690 nl_key = nla_nest_start(msg, i);
4691 if (!nl_key)
4692 goto nla_put_failure;
4693
4694 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
4695 params->wep_key[i]);
4696 if (params->wep_key_len[i] == 5)
4697 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4698 WLAN_CIPHER_SUITE_WEP40);
4699 else
4700 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4701 WLAN_CIPHER_SUITE_WEP104);
4702
4703 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
4704
4705 if (i == params->wep_tx_keyidx)
4706 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4707
4708 nla_nest_end(msg, nl_key);
4709 }
4710 nla_nest_end(msg, nl_keys);
4711
4712 return 0;
4713
4714nla_put_failure:
4715 return -ENOBUFS;
4716}
4717
4718
c2a04078 4719static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 4720 const u8 *addr, int cmd, u16 reason_code,
4721 int local_state_change)
c2a04078
JM		 4722{
4723 int ret = -1;
4724 struct nl_msg *msg;
4725
4726 msg = nlmsg_alloc();
4727 if (!msg)
4728 return -1;
4729
9fb04070 4730 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 4731
4732 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4733 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
817762d9
MI		 4734 if (addr)
4735 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 4736 if (local_state_change)
4737 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 4738
4739 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4740 msg = NULL;
4741 if (ret) {
3b7ea880
BG		 4742 wpa_dbg(drv->ctx, MSG_DEBUG,
4743 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
4744 reason_code, ret, strerror(-ret));
c2a04078
JM		 4745 goto nla_put_failure;
4746 }
4747 ret = 0;
4748
4749nla_put_failure:
4750 nlmsg_free(msg);
4751 return ret;
4752}
3f5285e8
JM		 4753
4754
cfaab580 4755static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
817762d9 4756 int reason_code)
cfaab580 4757{
817762d9 4758 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
cfaab580 4759 drv->associated = 0;
a8c5b43a 4760 drv->ignore_next_local_disconnect = 0;
817762d9
MI		 4761 /* Disconnect command doesn't need BSSID - it uses cached value */
4762 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
77339912 4763 reason_code, 0);
cfaab580
ZY		 4764}
4765
4766
9ebce9c5
JM		 4767static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
4768 const u8 *addr, int reason_code)
3f5285e8 4769{
a2e40bb6 4770 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580 4771 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
817762d9 4772 return wpa_driver_nl80211_disconnect(drv, reason_code);
2e75a2b3
JM		 4773 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4774 __func__, MAC2STR(addr), reason_code);
13405f35 4775 drv->associated = 0;
21bdbe38
JM		 4776 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
4777 return nl80211_leave_ibss(drv);
c2a04078 4778 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 4779 reason_code, 0);
3f5285e8
JM		 4780}
4781
4782
536fd62d
JM		 4783static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
4784 struct wpa_driver_auth_params *params)
4785{
4786 int i;
4787
4788 drv->auth_freq = params->freq;
4789 drv->auth_alg = params->auth_alg;
4790 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
4791 drv->auth_local_state_change = params->local_state_change;
4792 drv->auth_p2p = params->p2p;
4793
4794 if (params->bssid)
4795 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
4796 else
4797 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
4798
4799 if (params->ssid) {
4800 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
4801 drv->auth_ssid_len = params->ssid_len;
4802 } else
4803 drv->auth_ssid_len = 0;
4804
4805
4806 os_free(drv->auth_ie);
4807 drv->auth_ie = NULL;
4808 drv->auth_ie_len = 0;
4809 if (params->ie) {
4810 drv->auth_ie = os_malloc(params->ie_len);
4811 if (drv->auth_ie) {
4812 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
4813 drv->auth_ie_len = params->ie_len;
4814 }
4815 }
4816
4817 for (i = 0; i < 4; i++) {
4818 if (params->wep_key[i] && params->wep_key_len[i] &&
4819 params->wep_key_len[i] <= 16) {
4820 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
4821 params->wep_key_len[i]);
4822 drv->auth_wep_key_len[i] = params->wep_key_len[i];
4823 } else
4824 drv->auth_wep_key_len[i] = 0;
4825 }
4826}
4827
4828
c2a04078 4829static int wpa_driver_nl80211_authenticate(
9ebce9c5 4830 struct i802_bss *bss, struct wpa_driver_auth_params *params)
c2a04078 4831{
a2e40bb6 4832 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 4833 int ret = -1, i;
c2a04078
JM		 4834 struct nl_msg *msg;
4835 enum nl80211_auth_type type;
2f4f73b1 4836 enum nl80211_iftype nlmode;
6d6f4bb8 4837 int count = 0;
536fd62d
JM		 4838 int is_retry;
4839
4840 is_retry = drv->retry_auth;
4841 drv->retry_auth = 0;
c2a04078
JM		 4842
4843 drv->associated = 0;
e6b8efeb 4844 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 4845 /* FIX: IBSS mode */
2f4f73b1
EP		 4846 nlmode = params->p2p ?
4847 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4848 if (drv->nlmode != nlmode &&
9ebce9c5 4849 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
4a867032
JM		 4850 return -1;
4851
6d6f4bb8 4852retry:
c2a04078
JM		 4853 msg = nlmsg_alloc();
4854 if (!msg)
4855 return -1;
4856
4857 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
4858 drv->ifindex);
a0b2f99b 4859
9fb04070 4860 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 4861
a0b2f99b
JM		 4862 for (i = 0; i < 4; i++) {
4863 if (!params->wep_key[i])
4864 continue;
9ebce9c5 4865 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
2ea2fcc7 4866 NULL, i,
a0b2f99b
JM		 4867 i == params->wep_tx_keyidx, NULL, 0,
4868 params->wep_key[i],
4869 params->wep_key_len[i]);
0194fedb
JB		 4870 if (params->wep_tx_keyidx != i)
4871 continue;
4872 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
4873 params->wep_key[i], params->wep_key_len[i])) {
4874 nlmsg_free(msg);
4875 return -1;
4876 }
a0b2f99b
JM		 4877 }
4878
c2a04078
JM		 4879 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4880 if (params->bssid) {
4881 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4882 MAC2STR(params->bssid));
4883 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4884 }
4885 if (params->freq) {
4886 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4887 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4888 }
4889 if (params->ssid) {
4890 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4891 params->ssid, params->ssid_len);
4892 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4893 params->ssid);
4894 }
4895 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
4896 if (params->ie)
4897 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
569fed90
JM		 4898 if (params->sae_data) {
4899 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
4900 params->sae_data_len);
4901 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
4902 params->sae_data);
4903 }
abd9fafa 4904 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 4905 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 4906 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 4907 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 4908 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 4909 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 4910 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078 4911 type = NL80211_AUTHTYPE_FT;
569fed90
JM		 4912 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
4913 type = NL80211_AUTHTYPE_SAE;
c2a04078
JM		 4914 else
4915 goto nla_put_failure;
4916 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4917 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 4918 if (params->local_state_change) {
4919 wpa_printf(MSG_DEBUG, " * Local state change only");
4920 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4921 }
c2a04078
JM		 4922
4923 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4924 msg = NULL;
4925 if (ret) {
3b7ea880
BG		 4926 wpa_dbg(drv->ctx, MSG_DEBUG,
4927 "nl80211: MLME command failed (auth): ret=%d (%s)",
4928 ret, strerror(-ret));
6d6f4bb8 4929 count++;
77339912
JM		 4930 if (ret == -EALREADY && count == 1 && params->bssid &&
4931 !params->local_state_change) {
6d6f4bb8
JM		 4932 /*
4933 * mac80211 does not currently accept new
4934 * authentication if we are already authenticated. As a
4935 * workaround, force deauthentication and try again.
4936 */
4937 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
4938 "after forced deauthentication");
4939 wpa_driver_nl80211_deauthenticate(
5205c4f9 4940 bss, params->bssid,
6d6f4bb8
JM		 4941 WLAN_REASON_PREV_AUTH_NOT_VALID);
4942 nlmsg_free(msg);
4943 goto retry;
4944 }
536fd62d
JM		 4945
4946 if (ret == -ENOENT && params->freq && !is_retry) {
4947 /*
4948 * cfg80211 has likely expired the BSS entry even
4949 * though it was previously available in our internal
4950 * BSS table. To recover quickly, start a single
4951 * channel scan on the specified channel.
4952 */
4953 struct wpa_driver_scan_params scan;
4954 int freqs[2];
4955
4956 os_memset(&scan, 0, sizeof(scan));
4957 scan.num_ssids = 1;
4958 if (params->ssid) {
4959 scan.ssids[0].ssid = params->ssid;
4960 scan.ssids[0].ssid_len = params->ssid_len;
4961 }
4962 freqs[0] = params->freq;
4963 freqs[1] = 0;
4964 scan.freqs = freqs;
4965 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
4966 "channel scan to refresh cfg80211 BSS "
4967 "entry");
4968 ret = wpa_driver_nl80211_scan(bss, &scan);
4969 if (ret == 0) {
4970 nl80211_copy_auth_params(drv, params);
4971 drv->scan_for_auth = 1;
4972 }
8c3ba078
JM		 4973 } else if (is_retry) {
4974 /*
4975 * Need to indicate this with an event since the return
4976 * value from the retry is not delivered to core code.
4977 */
4978 union wpa_event_data event;
4979 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
4980 "failed");
4981 os_memset(&event, 0, sizeof(event));
4982 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
4983 ETH_ALEN);
4984 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
4985 &event);
536fd62d
JM		 4986 }
4987
c2a04078
JM		 4988 goto nla_put_failure;
4989 }
4990 ret = 0;
4991 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
4992 "successfully");
4993
4994nla_put_failure:
4995 nlmsg_free(msg);
4996 return ret;
4997}
4998
4999
536fd62d
JM		 5000static int wpa_driver_nl80211_authenticate_retry(
5001 struct wpa_driver_nl80211_data *drv)
5002{
5003 struct wpa_driver_auth_params params;
5004 struct i802_bss *bss = &drv->first_bss;
5005 int i;
5006
5007 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
5008
5009 os_memset(&params, 0, sizeof(params));
5010 params.freq = drv->auth_freq;
5011 params.auth_alg = drv->auth_alg;
5012 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
5013 params.local_state_change = drv->auth_local_state_change;
5014 params.p2p = drv->auth_p2p;
5015
5016 if (!is_zero_ether_addr(drv->auth_bssid_))
5017 params.bssid = drv->auth_bssid_;
5018
5019 if (drv->auth_ssid_len) {
5020 params.ssid = drv->auth_ssid;
5021 params.ssid_len = drv->auth_ssid_len;
5022 }
5023
5024 params.ie = drv->auth_ie;
5025 params.ie_len = drv->auth_ie_len;
5026
5027 for (i = 0; i < 4; i++) {
5028 if (drv->auth_wep_key_len[i]) {
5029 params.wep_key[i] = drv->auth_wep_key[i];
5030 params.wep_key_len[i] = drv->auth_wep_key_len[i];
5031 }
5032 }
5033
5034 drv->retry_auth = 1;
5035 return wpa_driver_nl80211_authenticate(bss, &params);
5036}
5037
5038
282d5590
JM		 5039struct phy_info_arg {
5040 u16 *num_modes;
5041 struct hostapd_hw_modes *modes;
43245552 5042 int last_mode, last_chan_idx;
282d5590
JM		 5043};
5044
e62a1d43
JM		 5045static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
5046 struct nlattr *ampdu_factor,
5047 struct nlattr *ampdu_density,
5048 struct nlattr *mcs_set)
5049{
5050 if (capa)
5051 mode->ht_capab = nla_get_u16(capa);
5052
5053 if (ampdu_factor)
5054 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
5055
5056 if (ampdu_density)
5057 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
5058
5059 if (mcs_set && nla_len(mcs_set) >= 16) {
5060 u8 *mcs;
5061 mcs = nla_data(mcs_set);
5062 os_memcpy(mode->mcs_set, mcs, 16);
5063 }
5064}
5065
5066
5067static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
5068 struct nlattr *capa,
5069 struct nlattr *mcs_set)
5070{
5071 if (capa)
5072 mode->vht_capab = nla_get_u32(capa);
5073
5074 if (mcs_set && nla_len(mcs_set) >= 8) {
5075 u8 *mcs;
5076 mcs = nla_data(mcs_set);
5077 os_memcpy(mode->vht_mcs_set, mcs, 8);
5078 }
5079}
5080
5081
214a77b0
JM		 5082static void phy_info_freq(struct hostapd_hw_modes *mode,
5083 struct hostapd_channel_data *chan,
5084 struct nlattr *tb_freq[])
5085{
c30a4ab0
JB		 5086 enum hostapd_hw_mode m;
5087
214a77b0
JM		 5088 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
5089 chan->flag = 0;
5090
c30a4ab0
JB		 5091 if (chan->freq < 4000)
5092 m = HOSTAPD_MODE_IEEE80211B;
5093 else if (chan->freq > 50000)
5094 m = HOSTAPD_MODE_IEEE80211AD;
5095 else
5096 m = HOSTAPD_MODE_IEEE80211A;
214a77b0 5097
c30a4ab0 5098 switch (m) {
214a77b0
JM		 5099 case HOSTAPD_MODE_IEEE80211AD:
5100 chan->chan = (chan->freq - 56160) / 2160;
5101 break;
5102 case HOSTAPD_MODE_IEEE80211A:
5103 chan->chan = chan->freq / 5 - 1000;
5104 break;
5105 case HOSTAPD_MODE_IEEE80211B:
5106 case HOSTAPD_MODE_IEEE80211G:
5107 if (chan->freq == 2484)
5108 chan->chan = 14;
5109 else
5110 chan->chan = (chan->freq - 2407) / 5;
5111 break;
5112 default:
5113 break;
5114 }
5115
5116 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
5117 chan->flag |= HOSTAPD_CHAN_DISABLED;
5118 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
5119 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN;
5120 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
5121 chan->flag |= HOSTAPD_CHAN_NO_IBSS;
5122 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
5123 chan->flag |= HOSTAPD_CHAN_RADAR;
5124
5125 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
5126 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
5127 chan->max_tx_power = nla_get_u32(
5128 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
5129}
5130
5131
e62a1d43
JM		 5132static int phy_info_freqs(struct phy_info_arg *phy_info,
5133 struct hostapd_hw_modes *mode, struct nlattr *tb)
282d5590 5134{
282d5590
JM		 5135 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5136 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
5137 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
5138 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
5139 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
5140 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
5141 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
5142 };
e62a1d43
JM		 5143 int new_channels = 0;
5144 struct hostapd_channel_data *channel;
5145 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
5146 struct nlattr *nl_freq;
5147 int rem_freq, idx;
5148
5149 if (tb == NULL)
5150 return NL_OK;
5151
5152 nla_for_each_nested(nl_freq, tb, rem_freq) {
5153 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5154 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5155 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5156 continue;
5157 new_channels++;
5158 }
5159
5160 channel = os_realloc_array(mode->channels,
5161 mode->num_channels + new_channels,
5162 sizeof(struct hostapd_channel_data));
5163 if (!channel)
5164 return NL_SKIP;
5165
5166 mode->channels = channel;
5167 mode->num_channels += new_channels;
5168
5169 idx = phy_info->last_chan_idx;
5170
5171 nla_for_each_nested(nl_freq, tb, rem_freq) {
5172 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5173 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5174 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5175 continue;
214a77b0 5176 phy_info_freq(mode, &mode->channels[idx], tb_freq);
e62a1d43
JM		 5177 idx++;
5178 }
5179 phy_info->last_chan_idx = idx;
5180
5181 return NL_OK;
5182}
5183
5184
5185static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
5186{
282d5590
JM		 5187 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
5188 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3cfcad1b
JM		 5189 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
5190 { .type = NLA_FLAG },
282d5590 5191 };
e62a1d43 5192 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
282d5590 5193 struct nlattr *nl_rate;
e62a1d43
JM		 5194 int rem_rate, idx;
5195
5196 if (tb == NULL)
5197 return NL_OK;
5198
5199 nla_for_each_nested(nl_rate, tb, rem_rate) {
5200 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5201 nla_data(nl_rate), nla_len(nl_rate),
5202 rate_policy);
5203 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5204 continue;
5205 mode->num_rates++;
5206 }
5207
5208 mode->rates = os_calloc(mode->num_rates, sizeof(int));
5209 if (!mode->rates)
5210 return NL_SKIP;
5211
5212 idx = 0;
5213
5214 nla_for_each_nested(nl_rate, tb, rem_rate) {
5215 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5216 nla_data(nl_rate), nla_len(nl_rate),
5217 rate_policy);
5218 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5219 continue;
5220 mode->rates[idx] = nla_get_u32(
5221 tb_rate[NL80211_BITRATE_ATTR_RATE]);
e62a1d43
JM		 5222 idx++;
5223 }
5224
5225 return NL_OK;
5226}
5227
5228
5229static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
5230{
5231 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
282d5590 5232 struct hostapd_hw_modes *mode;
e62a1d43 5233 int ret;
282d5590 5234
3cfcad1b
JM		 5235 if (phy_info->last_mode != nl_band->nla_type) {
5236 mode = os_realloc_array(phy_info->modes,
5237 *phy_info->num_modes + 1,
5238 sizeof(*mode));
5239 if (!mode)
5240 return NL_SKIP;
5241 phy_info->modes = mode;
5242
5243 mode = &phy_info->modes[*(phy_info->num_modes)];
5244 os_memset(mode, 0, sizeof(*mode));
5245 mode->mode = NUM_HOSTAPD_MODES;
5246 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
5247 *(phy_info->num_modes) += 1;
5248 phy_info->last_mode = nl_band->nla_type;
5249 phy_info->last_chan_idx = 0;
5250 } else
5251 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
282d5590 5252
3cfcad1b
JM		 5253 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
5254 nla_len(nl_band), NULL);
282d5590 5255
e62a1d43
JM		 5256 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
5257 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
5258 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
5259 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
5260 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
5261 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
5262 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
5263 if (ret != NL_OK)
5264 return ret;
5265 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
5266 if (ret != NL_OK)
5267 return ret;
282d5590 5268
3cfcad1b
JM		 5269 return NL_OK;
5270}
5271
5272
5273static int phy_info_handler(struct nl_msg *msg, void *arg)
5274{
5275 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5276 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5277 struct phy_info_arg *phy_info = arg;
5278 struct nlattr *nl_band;
5279 int rem_band;
5280
5281 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5282 genlmsg_attrlen(gnlh, 0), NULL);
5283
5284 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
5285 return NL_SKIP;
5286
5287 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
5288 {
5289 int res = phy_info_band(phy_info, nl_band);
5290 if (res != NL_OK)
5291 return res;
5292 }
5293
282d5590
JM		 5294 return NL_SKIP;
5295}
5296
3cfcad1b 5297
282d5590 5298static struct hostapd_hw_modes *
c30a4ab0
JB		 5299wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
5300 u16 *num_modes)
282d5590
JM		 5301{
5302 u16 m;
5303 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
5304 int i, mode11g_idx = -1;
5305
c30a4ab0
JB		 5306 /* heuristic to set up modes */
5307 for (m = 0; m < *num_modes; m++) {
5308 if (!modes[m].num_channels)
5309 continue;
5310 if (modes[m].channels[0].freq < 4000) {
5311 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
5312 for (i = 0; i < modes[m].num_rates; i++) {
5313 if (modes[m].rates[i] > 200) {
5314 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
5315 break;
5316 }
5317 }
5318 } else if (modes[m].channels[0].freq > 50000)
5319 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
5320 else
5321 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
5322 }
5323
282d5590
JM		 5324 /* If only 802.11g mode is included, use it to construct matching
5325 * 802.11b mode data. */
5326
5327 for (m = 0; m < *num_modes; m++) {
5328 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
5329 return modes; /* 802.11b already included */
5330 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
5331 mode11g_idx = m;
5332 }
5333
5334 if (mode11g_idx < 0)
5335 return modes; /* 2.4 GHz band not supported at all */
5336
067ffa26 5337 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
282d5590
JM		 5338 if (nmodes == NULL)
5339 return modes; /* Could not add 802.11b mode */
5340
5341 mode = &nmodes[*num_modes];
5342 os_memset(mode, 0, sizeof(*mode));
5343 (*num_modes)++;
5344 modes = nmodes;
5345
5346 mode->mode = HOSTAPD_MODE_IEEE80211B;
5347
5348 mode11g = &modes[mode11g_idx];
5349 mode->num_channels = mode11g->num_channels;
5350 mode->channels = os_malloc(mode11g->num_channels *
5351 sizeof(struct hostapd_channel_data));
5352 if (mode->channels == NULL) {
5353 (*num_modes)--;
5354 return modes; /* Could not add 802.11b mode */
5355 }
5356 os_memcpy(mode->channels, mode11g->channels,
5357 mode11g->num_channels * sizeof(struct hostapd_channel_data));
5358
5359 mode->num_rates = 0;
fb7842aa 5360 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 5361 if (mode->rates == NULL) {
5362 os_free(mode->channels);
5363 (*num_modes)--;
5364 return modes; /* Could not add 802.11b mode */
5365 }
5366
5367 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 5368 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
5369 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 5370 continue;
5371 mode->rates[mode->num_rates] = mode11g->rates[i];
5372 mode->num_rates++;
5373 if (mode->num_rates == 4)
5374 break;
5375 }
5376
5377 if (mode->num_rates == 0) {
5378 os_free(mode->channels);
5379 os_free(mode->rates);
5380 (*num_modes)--;
5381 return modes; /* No 802.11b rates */
5382 }
5383
5384 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
5385 "information");
5386
5387 return modes;
5388}
5389
5390
d8e66e80
JM		 5391static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
5392 int end)
5393{
5394 int c;
5395
5396 for (c = 0; c < mode->num_channels; c++) {
5397 struct hostapd_channel_data *chan = &mode->channels[c];
5398 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
5399 chan->flag |= HOSTAPD_CHAN_HT40;
5400 }
5401}
5402
5403
5404static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
5405 int end)
5406{
5407 int c;
5408
5409 for (c = 0; c < mode->num_channels; c++) {
5410 struct hostapd_channel_data *chan = &mode->channels[c];
5411 if (!(chan->flag & HOSTAPD_CHAN_HT40))
5412 continue;
5413 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
5414 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
5415 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
5416 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
5417 }
5418}
5419
5420
5421static void nl80211_reg_rule_ht40(struct nlattr *tb[],
5422 struct phy_info_arg *results)
5423{
5424 u32 start, end, max_bw;
5425 u16 m;
5426
5427 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5428 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5429 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5430 return;
5431
5432 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5433 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5434 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5435
5436 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
5437 start, end, max_bw);
5438 if (max_bw < 40)
5439 return;
5440
5441 for (m = 0; m < *results->num_modes; m++) {
5442 if (!(results->modes[m].ht_capab &
5443 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5444 continue;
5445 nl80211_set_ht40_mode(&results->modes[m], start, end);
5446 }
5447}
5448
5449
5450static void nl80211_reg_rule_sec(struct nlattr *tb[],
5451 struct phy_info_arg *results)
5452{
5453 u32 start, end, max_bw;
5454 u16 m;
5455
5456 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5457 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5458 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5459 return;
5460
5461 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5462 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5463 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5464
5465 if (max_bw < 20)
5466 return;
5467
5468 for (m = 0; m < *results->num_modes; m++) {
5469 if (!(results->modes[m].ht_capab &
5470 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5471 continue;
5472 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
5473 }
5474}
5475
5476
5477static int nl80211_get_reg(struct nl_msg *msg, void *arg)
5478{
5479 struct phy_info_arg *results = arg;
5480 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5481 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5482 struct nlattr *nl_rule;
5483 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
5484 int rem_rule;
5485 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5486 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5487 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5488 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5489 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5490 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5491 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5492 };
5493
5494 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5495 genlmsg_attrlen(gnlh, 0), NULL);
5496 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
5497 !tb_msg[NL80211_ATTR_REG_RULES]) {
5498 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
5499 "available");
5500 return NL_SKIP;
5501 }
5502
5503 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
5504 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
5505
5506 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5507 {
5508 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5509 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5510 nl80211_reg_rule_ht40(tb_rule, results);
5511 }
5512
5513 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5514 {
5515 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5516 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5517 nl80211_reg_rule_sec(tb_rule, results);
5518 }
5519
5520 return NL_SKIP;
5521}
5522
5523
5524static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
5525 struct phy_info_arg *results)
5526{
5527 struct nl_msg *msg;
5528
5529 msg = nlmsg_alloc();
5530 if (!msg)
5531 return -ENOMEM;
5532
9fb04070 5533 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 5534 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
5535}
5536
5537
282d5590
JM		 5538static struct hostapd_hw_modes *
5539wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
5540{
43245552 5541 u32 feat;
a2e40bb6
FF		 5542 struct i802_bss *bss = priv;
5543 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 5544 struct nl_msg *msg;
5545 struct phy_info_arg result = {
5546 .num_modes = num_modes,
5547 .modes = NULL,
43245552 5548 .last_mode = -1,
282d5590
JM		 5549 };
5550
5551 *num_modes = 0;
5552 *flags = 0;
5553
5554 msg = nlmsg_alloc();
5555 if (!msg)
5556 return NULL;
5557
43245552
DJ		 5558 feat = get_nl80211_protocol_features(drv);
5559 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
5560 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
5561 else
5562 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590 5563
43245552 5564 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
282d5590
JM		 5565 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5566
d8e66e80
JM		 5567 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
5568 nl80211_set_ht40_flags(drv, &result);
c30a4ab0
JB		 5569 return wpa_driver_nl80211_postprocess_modes(result.modes,
5570 num_modes);
d8e66e80 5571 }
5883168a 5572 msg = NULL;
282d5590 5573 nla_put_failure:
5883168a 5574 nlmsg_free(msg);
282d5590
JM		 5575 return NULL;
5576}
5577
5578
a11241fa
JB		 5579static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
5580 const void *data, size_t len,
5581 int encrypt, int noack)
2c2010ac
JM		 5582{
5583 __u8 rtap_hdr[] = {
5584 0x00, 0x00, /* radiotap version */
5585 0x0e, 0x00, /* radiotap length */
5586 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
5587 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
5588 0x00, /* padding */
5589 0x00, 0x00, /* RX and TX flags to indicate that */
5590 0x00, 0x00, /* this is the injected frame directly */
5591 };
5592 struct iovec iov[2] = {
5593 {
5594 .iov_base = &rtap_hdr,
5595 .iov_len = sizeof(rtap_hdr),
5596 },
5597 {
5598 .iov_base = (void *) data,
5599 .iov_len = len,
5600 }
5601 };
5602 struct msghdr msg = {
5603 .msg_name = NULL,
5604 .msg_namelen = 0,
5605 .msg_iov = iov,
5606 .msg_iovlen = 2,
5607 .msg_control = NULL,
5608 .msg_controllen = 0,
5609 .msg_flags = 0,
5610 };
ebbec8b2 5611 int res;
fab25336 5612 u16 txflags = 0;
2c2010ac
JM		 5613
5614 if (encrypt)
5615 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
5616
866af8b6
JM		 5617 if (drv->monitor_sock < 0) {
5618 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
5619 "for %s", __func__);
5620 return -1;
5621 }
5622
fab25336
HS		 5623 if (noack)
5624 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
9d7a63dc 5625 WPA_PUT_LE16(&rtap_hdr[12], txflags);
fab25336 5626
ebbec8b2
JM		 5627 res = sendmsg(drv->monitor_sock, &msg, 0);
5628 if (res < 0) {
5629 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
5630 return -1;
5631 }
5632 return 0;
2c2010ac
JM		 5633}
5634
5635
a11241fa
JB		 5636static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
5637 const void *data, size_t len,
55231068
JM		 5638 int encrypt, int noack,
5639 unsigned int freq, int no_cck,
5640 int offchanok, unsigned int wait_time)
a11241fa
JB		 5641{
5642 struct wpa_driver_nl80211_data *drv = bss->drv;
5643 u64 cookie;
5644
55231068
JM		 5645 if (freq == 0)
5646 freq = bss->freq;
5647
a11241fa
JB		 5648 if (drv->use_monitor)
5649 return wpa_driver_nl80211_send_mntr(drv, data, len,
5650 encrypt, noack);
5651
55231068
JM		 5652 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
5653 &cookie, no_cck, noack, offchanok);
a11241fa
JB		 5654}
5655
5656
9ebce9c5
JM		 5657static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
5658 size_t data_len, int noack,
5659 unsigned int freq, int no_cck,
5660 int offchanok,
5661 unsigned int wait_time)
2c2010ac 5662{
a2e40bb6 5663 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 5664 struct ieee80211_mgmt *mgmt;
7a47d567 5665 int encrypt = 1;
2c2010ac
JM		 5666 u16 fc;
5667
5668 mgmt = (struct ieee80211_mgmt *) data;
5669 fc = le_to_host16(mgmt->frame_control);
5670
b1f625e0 5671 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 5672 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5673 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
5674 /*
5675 * The use of last_mgmt_freq is a bit of a hack,
5676 * but it works due to the single-threaded nature
5677 * of wpa_supplicant.
5678 */
55231068
JM		 5679 if (freq == 0)
5680 freq = drv->last_mgmt_freq;
5681 return nl80211_send_frame_cmd(bss, freq, 0,
88df0ef7
JB		 5682 data, data_len, NULL, 1, noack,
5683 1);
5582a5d1
JB		 5684 }
5685
61cbe2ff 5686 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
55231068
JM		 5687 if (freq == 0)
5688 freq = bss->freq;
b5671498
JM		 5689 return nl80211_send_frame_cmd(bss, freq,
5690 (int) freq == bss->freq ? 0 :
5691 wait_time,
d8d6b32e
DG		 5692 data, data_len,
5693 &drv->send_action_cookie,
55231068 5694 no_cck, noack, offchanok);
86957e62
JM		 5695 }
5696
2c2010ac
JM		 5697 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5698 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
5699 /*
5700 * Only one of the authentication frame types is encrypted.
5701 * In order for static WEP encryption to work properly (i.e.,
5702 * to not encrypt the frame), we need to tell mac80211 about
5703 * the frames that must not be encrypted.
5704 */
5705 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
5706 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 5707 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
5708 encrypt = 0;
2c2010ac
JM		 5709 }
5710
a11241fa 5711 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
55231068
JM		 5712 noack, freq, no_cck, offchanok,
5713 wait_time);
5714}
5715
5716
31357268 5717static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 5718 int slot, int ht_opmode, int ap_isolate,
5719 int *basic_rates)
31357268
JM		 5720{
5721 struct wpa_driver_nl80211_data *drv = bss->drv;
5722 struct nl_msg *msg;
5723
5724 msg = nlmsg_alloc();
5725 if (!msg)
5726 return -ENOMEM;
5727
9fb04070 5728 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 5729
5730 if (cts >= 0)
5731 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5732 if (preamble >= 0)
5733 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5734 if (slot >= 0)
5735 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
5736 if (ht_opmode >= 0)
5737 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 5738 if (ap_isolate >= 0)
5739 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 5740
5741 if (basic_rates) {
5742 u8 rates[NL80211_MAX_SUPP_RATES];
5743 u8 rates_len = 0;
5744 int i;
5745
5746 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
5747 i++)
5748 rates[rates_len++] = basic_rates[i] / 5;
5749
5750 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5751 }
5752
31357268
JM		 5753 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5754
5755 return send_and_recv_msgs(drv, msg, NULL, NULL);
5756 nla_put_failure:
5883168a 5757 nlmsg_free(msg);
31357268
JM		 5758 return -ENOBUFS;
5759}
5760
5761
19c3b566
JM		 5762static int wpa_driver_nl80211_set_ap(void *priv,
5763 struct wpa_driver_ap_params *params)
d2440ba0 5764{
a2e40bb6
FF		 5765 struct i802_bss *bss = priv;
5766 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 5767 struct nl_msg *msg;
5768 u8 cmd = NL80211_CMD_NEW_BEACON;
5769 int ret;
b4fd6fab 5770 int beacon_set;
8b897f5a 5771 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 5772 int num_suites;
5773 u32 suites[10];
5774 u32 ver;
b4fd6fab 5775
b4fd6fab 5776 beacon_set = bss->beacon_set;
d2440ba0
JM		 5777
5778 msg = nlmsg_alloc();
5779 if (!msg)
5780 return -ENOMEM;
5781
5782 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 5783 beacon_set);
5784 if (beacon_set)
d2440ba0
JM		 5785 cmd = NL80211_CMD_SET_BEACON;
5786
9fb04070 5787 nl80211_cmd(drv, msg, 0, cmd);
b92e08fc
JM		 5788 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
5789 params->head, params->head_len);
19c3b566 5790 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
b92e08fc
JM		 5791 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
5792 params->tail, params->tail_len);
19c3b566 5793 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b92e08fc 5794 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex);
b4fd6fab 5795 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
b92e08fc 5796 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
19c3b566 5797 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
b92e08fc 5798 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
19c3b566 5799 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
b92e08fc
JM		 5800 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
5801 params->ssid, params->ssid_len);
ccb941e6
JM		 5802 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5803 params->ssid);
b92e08fc
JM		 5804 if (params->proberesp && params->proberesp_len) {
5805 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
5806 params->proberesp, params->proberesp_len);
5ed33546
AN		 5807 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
5808 params->proberesp);
b92e08fc 5809 }
97a7a0b5
JM		 5810 switch (params->hide_ssid) {
5811 case NO_SSID_HIDING:
b92e08fc 5812 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
97a7a0b5
JM		 5813 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5814 NL80211_HIDDEN_SSID_NOT_IN_USE);
5815 break;
5816 case HIDDEN_SSID_ZERO_LEN:
b92e08fc 5817 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
97a7a0b5
JM		 5818 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5819 NL80211_HIDDEN_SSID_ZERO_LEN);
5820 break;
5821 case HIDDEN_SSID_ZERO_CONTENTS:
b92e08fc 5822 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
97a7a0b5
JM		 5823 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5824 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
5825 break;
5826 }
b92e08fc 5827 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
b11d1d64
JM		 5828 if (params->privacy)
5829 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
b92e08fc 5830 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
b11d1d64
JM		 5831 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
5832 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
5833 /* Leave out the attribute */
5834 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
5835 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5836 NL80211_AUTHTYPE_SHARED_KEY);
5837 else
5838 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5839 NL80211_AUTHTYPE_OPEN_SYSTEM);
5840
b92e08fc 5841 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
b11d1d64
JM		 5842 ver = 0;
5843 if (params->wpa_version & WPA_PROTO_WPA)
5844 ver |= NL80211_WPA_VERSION_1;
5845 if (params->wpa_version & WPA_PROTO_RSN)
5846 ver |= NL80211_WPA_VERSION_2;
5847 if (ver)
5848 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5849
b92e08fc
JM		 5850 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
5851 params->key_mgmt_suites);
b11d1d64
JM		 5852 num_suites = 0;
5853 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
5854 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
5855 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
5856 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
5857 if (num_suites) {
5858 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
5859 num_suites * sizeof(u32), suites);
5860 }
5861
9f12614b
JB		 5862 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
5863 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
5864 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
5865
b92e08fc
JM		 5866 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
5867 params->pairwise_ciphers);
b11d1d64
JM		 5868 num_suites = 0;
5869 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
5870 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
eb7719ff
JM		 5871 if (params->pairwise_ciphers & WPA_CIPHER_GCMP)
5872 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
b11d1d64
JM		 5873 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
5874 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5875 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
5876 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5877 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
5878 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5879 if (num_suites) {
5880 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5881 num_suites * sizeof(u32), suites);
5882 }
5883
b92e08fc
JM		 5884 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
5885 params->group_cipher);
b11d1d64
JM		 5886 switch (params->group_cipher) {
5887 case WPA_CIPHER_CCMP:
5888 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5889 WLAN_CIPHER_SUITE_CCMP);
5890 break;
eb7719ff
JM		 5891 case WPA_CIPHER_GCMP:
5892 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5893 WLAN_CIPHER_SUITE_GCMP);
5894 break;
b11d1d64
JM		 5895 case WPA_CIPHER_TKIP:
5896 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5897 WLAN_CIPHER_SUITE_TKIP);
5898 break;
5899 case WPA_CIPHER_WEP104:
5900 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5901 WLAN_CIPHER_SUITE_WEP104);
5902 break;
5903 case WPA_CIPHER_WEP40:
5904 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5905 WLAN_CIPHER_SUITE_WEP40);
5906 break;
5907 }
d2440ba0 5908
fb91db56 5909 if (params->beacon_ies) {
b92e08fc
JM		 5910 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
5911 params->beacon_ies);
fb91db56
JM		 5912 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
5913 wpabuf_head(params->beacon_ies));
5914 }
5915 if (params->proberesp_ies) {
b92e08fc
JM		 5916 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
5917 params->proberesp_ies);
fb91db56
JM		 5918 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
5919 wpabuf_len(params->proberesp_ies),
5920 wpabuf_head(params->proberesp_ies));
5921 }
5922 if (params->assocresp_ies) {
b92e08fc
JM		 5923 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
5924 params->assocresp_ies);
fb91db56
JM		 5925 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
5926 wpabuf_len(params->assocresp_ies),
5927 wpabuf_head(params->assocresp_ies));
5928 }
5929
a0133ee1 5930 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
b92e08fc
JM		 5931 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
5932 params->ap_max_inactivity);
a0133ee1
VT		 5933 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
5934 params->ap_max_inactivity);
5935 }
5936
d2440ba0
JM		 5937 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5938 if (ret) {
5939 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
5940 ret, strerror(-ret));
b4fd6fab 5941 } else {
b4fd6fab 5942 bss->beacon_set = 1;
31357268 5943 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 5944 params->short_slot_time, params->ht_opmode,
e5693c47 5945 params->isolate, params->basic_rates);
b4fd6fab 5946 }
d2440ba0
JM		 5947 return ret;
5948 nla_put_failure:
5883168a 5949 nlmsg_free(msg);
d2440ba0
JM		 5950 return -ENOBUFS;
5951}
5952
5953
e4fb2167 5954static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
89b800d7 5955 struct hostapd_freq_params *freq)
1581b38b 5956{
e4fb2167 5957 struct wpa_driver_nl80211_data *drv = bss->drv;
1581b38b 5958 struct nl_msg *msg;
d2440ba0 5959 int ret;
1581b38b 5960
89b800d7
JB		 5961 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d,"
5962 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
5963 freq->freq, freq->ht_enabled, freq->vht_enabled,
5964 freq->bandwidth, freq->center_freq1, freq->center_freq2);
1581b38b
JM		 5965 msg = nlmsg_alloc();
5966 if (!msg)
5967 return -1;
5968
9fb04070 5969 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 5970
5971 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
89b800d7
JB		 5972 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
5973 if (freq->vht_enabled) {
5974 switch (freq->bandwidth) {
5975 case 20:
5976 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
5977 NL80211_CHAN_WIDTH_20);
5978 break;
5979 case 40:
5980 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
5981 NL80211_CHAN_WIDTH_40);
5982 break;
5983 case 80:
5984 if (freq->center_freq2)
5985 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
5986 NL80211_CHAN_WIDTH_80P80);
5987 else
5988 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
5989 NL80211_CHAN_WIDTH_80);
5990 break;
5991 case 160:
5992 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
5993 NL80211_CHAN_WIDTH_160);
5994 break;
5995 default:
5996 return -1;
5997 }
5998 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
5999 if (freq->center_freq2)
6000 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
6001 freq->center_freq2);
6002 } else if (freq->ht_enabled) {
6003 switch (freq->sec_channel_offset) {
f019981a
JM		 6004 case -1:
6005 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6006 NL80211_CHAN_HT40MINUS);
6007 break;
6008 case 1:
6009 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6010 NL80211_CHAN_HT40PLUS);
6011 break;
6012 default:
6013 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6014 NL80211_CHAN_HT20);
6015 break;
6016 }
6017 }
1581b38b 6018
d2440ba0 6019 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 6020 msg = NULL;
e4fb2167 6021 if (ret == 0) {
89b800d7 6022 bss->freq = freq->freq;
1581b38b 6023 return 0;
e4fb2167 6024 }
f019981a 6025 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
89b800d7 6026 "%d (%s)", freq->freq, ret, strerror(-ret));
1581b38b 6027nla_put_failure:
5883168a 6028 nlmsg_free(msg);
1581b38b
JM		 6029 return -1;
6030}
6031
0f4e8b4f 6032
95ab6063
AN		 6033static u32 sta_flags_nl80211(int flags)
6034{
6035 u32 f = 0;
6036
6037 if (flags & WPA_STA_AUTHORIZED)
6038 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
6039 if (flags & WPA_STA_WMM)
6040 f |= BIT(NL80211_STA_FLAG_WME);
6041 if (flags & WPA_STA_SHORT_PREAMBLE)
6042 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
6043 if (flags & WPA_STA_MFP)
6044 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 6045 if (flags & WPA_STA_TDLS_PEER)
6046 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 6047
6048 return f;
6049}
6050
6051
62847751 6052static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 6053 struct hostapd_sta_add_params *params)
6054{
a2e40bb6
FF		 6055 struct i802_bss *bss = priv;
6056 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8 6057 struct nl_msg *msg;
95ab6063 6058 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 6059 int ret = -ENOBUFS;
6060
45b722f1
AN		 6061 if ((params->flags & WPA_STA_TDLS_PEER) &&
6062 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
6063 return -EOPNOTSUPP;
6064
0f4e8b4f
JM		 6065 msg = nlmsg_alloc();
6066 if (!msg)
6067 return -ENOMEM;
6068
e4dea253
JM		 6069 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
6070 params->set ? "Set" : "Add", MAC2STR(params->addr));
45b722f1
AN		 6071 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
6072 NL80211_CMD_NEW_STATION);
0f4e8b4f 6073
62847751 6074 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 6075 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 6076 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
6077 params->supp_rates);
e4dea253
JM		 6078 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates,
6079 params->supp_rates_len);
45b722f1 6080 if (!params->set) {
e4dea253 6081 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
45b722f1 6082 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
e4dea253
JM		 6083 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
6084 params->listen_interval);
45b722f1
AN		 6085 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
6086 params->listen_interval);
6087 }
0f4e8b4f 6088 if (params->ht_capabilities) {
e4dea253
JM		 6089 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
6090 (u8 *) params->ht_capabilities,
6091 sizeof(*params->ht_capabilities));
0f4e8b4f 6092 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 6093 sizeof(*params->ht_capabilities),
6094 params->ht_capabilities);
0f4e8b4f 6095 }
0f4e8b4f 6096
05a8d422 6097 if (params->vht_capabilities) {
e4dea253
JM		 6098 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
6099 (u8 *) params->vht_capabilities,
6100 sizeof(*params->vht_capabilities));
05a8d422
JB		 6101 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY,
6102 sizeof(*params->vht_capabilities),
6103 params->vht_capabilities);
6104 }
6105
122d16f2
SD		 6106 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability);
6107 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
6108
6109 if (params->ext_capab) {
6110 wpa_hexdump(MSG_DEBUG, " * ext_capab",
6111 params->ext_capab, params->ext_capab_len);
6112 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
6113 params->ext_capab_len, params->ext_capab);
6114 }
6115
95ab6063
AN		 6116 os_memset(&upd, 0, sizeof(upd));
6117 upd.mask = sta_flags_nl80211(params->flags);
6118 upd.set = upd.mask;
e4dea253
JM		 6119 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
6120 upd.set, upd.mask);
95ab6063
AN		 6121 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6122
774bfa62 6123 if (params->flags & WPA_STA_WMM) {
8970bae8
JB		 6124 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
6125
774bfa62
EP		 6126 if (!wme)
6127 goto nla_put_failure;
6128
e4dea253 6129 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
8970bae8 6130 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES,
5d061637 6131 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
8970bae8 6132 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP,
bdaf1748 6133 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
5d061637 6134 WMM_QOSINFO_STA_SP_MASK);
8970bae8 6135 nla_nest_end(msg, wme);
774bfa62
EP		 6136 }
6137
0f4e8b4f 6138 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 6139 msg = NULL;
0f4e8b4f 6140 if (ret)
45b722f1
AN		 6141 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
6142 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
6143 strerror(-ret));
0f4e8b4f
JM		 6144 if (ret == -EEXIST)
6145 ret = 0;
6146 nla_put_failure:
5883168a 6147 nlmsg_free(msg);
0f4e8b4f
JM		 6148 return ret;
6149}
6150
6151
9ebce9c5 6152static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr)
0f4e8b4f 6153{
a2e40bb6 6154 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 6155 struct nl_msg *msg;
6156 int ret;
6157
6158 msg = nlmsg_alloc();
6159 if (!msg)
6160 return -ENOMEM;
6161
9fb04070 6162 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 6163
6164 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6165 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 6166 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6167
6168 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6169 if (ret == -ENOENT)
6170 return 0;
6171 return ret;
6172 nla_put_failure:
5883168a 6173 nlmsg_free(msg);
0f4e8b4f
JM		 6174 return -ENOBUFS;
6175}
6176
1581b38b 6177
0915d02c
JM		 6178static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
6179 int ifidx)
6180{
6181 struct nl_msg *msg;
6182
c6e8e8e4
JM		 6183 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
6184
2135f224
JM		 6185 /* stop listening for EAPOL on this interface */
6186 del_ifidx(drv, ifidx);
2135f224 6187
0915d02c
JM		 6188 msg = nlmsg_alloc();
6189 if (!msg)
6190 goto nla_put_failure;
6191
9fb04070 6192 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 6193 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
6194
6195 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6196 return;
5883168a 6197 msg = NULL;
0915d02c 6198 nla_put_failure:
5883168a 6199 nlmsg_free(msg);
e748062b 6200 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 6201}
6202
6203
a1922f93
JM		 6204static const char * nl80211_iftype_str(enum nl80211_iftype mode)
6205{
6206 switch (mode) {
6207 case NL80211_IFTYPE_ADHOC:
6208 return "ADHOC";
6209 case NL80211_IFTYPE_STATION:
6210 return "STATION";
6211 case NL80211_IFTYPE_AP:
6212 return "AP";
6213 case NL80211_IFTYPE_MONITOR:
6214 return "MONITOR";
6215 case NL80211_IFTYPE_P2P_CLIENT:
6216 return "P2P_CLIENT";
6217 case NL80211_IFTYPE_P2P_GO:
6218 return "P2P_GO";
6219 default:
6220 return "unknown";
6221 }
6222}
6223
6224
a35187e7
KH		 6225static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
6226 const char *ifname,
6227 enum nl80211_iftype iftype,
fbbfcbac 6228 const u8 *addr, int wds)
0915d02c 6229{
8970bae8 6230 struct nl_msg *msg;
0915d02c
JM		 6231 int ifidx;
6232 int ret = -ENOBUFS;
6233
a1922f93
JM		 6234 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
6235 iftype, nl80211_iftype_str(iftype));
6236
0915d02c
JM		 6237 msg = nlmsg_alloc();
6238 if (!msg)
6239 return -1;
6240
9fb04070 6241 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 6242 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6243 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
6244 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
6245
6246 if (iftype == NL80211_IFTYPE_MONITOR) {
8970bae8 6247 struct nlattr *flags;
0915d02c 6248
8970bae8 6249 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
0915d02c
JM		 6250 if (!flags)
6251 goto nla_put_failure;
6252
8970bae8 6253 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES);
0915d02c 6254
8970bae8 6255 nla_nest_end(msg, flags);
fbbfcbac
FF		 6256 } else if (wds) {
6257 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 6258 }
6259
6260 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 6261 msg = NULL;
0915d02c
JM		 6262 if (ret) {
6263 nla_put_failure:
5883168a 6264 nlmsg_free(msg);
a35187e7
KH		 6265 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
6266 ifname, ret, strerror(-ret));
0915d02c
JM		 6267 return ret;
6268 }
6269
6270 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 6271 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
6272 ifname, ifidx);
0915d02c
JM		 6273
6274 if (ifidx <= 0)
6275 return -1;
6276
2135f224
JM		 6277 /* start listening for EAPOL on this interface */
6278 add_ifidx(drv, ifidx);
6279
7bfc47c3 6280 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 6281 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 6282 nl80211_remove_iface(drv, ifidx);
6283 return -1;
2135f224 6284 }
2135f224 6285
0915d02c
JM		 6286 return ifidx;
6287}
22a7c9d7
JM		 6288
6289
a35187e7
KH		 6290static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
6291 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 6292 const u8 *addr, int wds)
a35187e7
KH		 6293{
6294 int ret;
6295
fbbfcbac 6296 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 6297
ffbf1eaa 6298 /* if error occurred and interface exists already */
a35187e7
KH		 6299 if (ret == -ENFILE && if_nametoindex(ifname)) {
6300 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
6301
6302 /* Try to remove the interface that was already there. */
6303 nl80211_remove_iface(drv, if_nametoindex(ifname));
6304
6305 /* Try to create the interface again */
fbbfcbac
FF		 6306 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
6307 wds);
a35187e7
KH		 6308 }
6309
b3af99d2 6310 if (ret >= 0 && is_p2p_interface(iftype))
4e5cb1a3
JM		 6311 nl80211_disable_11b_rates(drv, ret, 1);
6312
a35187e7
KH		 6313 return ret;
6314}
0915d02c 6315
2135f224 6316
0915d02c
JM		 6317static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
6318{
6319 struct ieee80211_hdr *hdr;
f8b1f695
JM		 6320 u16 fc;
6321 union wpa_event_data event;
0915d02c
JM		 6322
6323 hdr = (struct ieee80211_hdr *) buf;
6324 fc = le_to_host16(hdr->frame_control);
6325
f8b1f695
JM		 6326 os_memset(&event, 0, sizeof(event));
6327 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
6328 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
6329 event.tx_status.dst = hdr->addr1;
6330 event.tx_status.data = buf;
6331 event.tx_status.data_len = len;
6332 event.tx_status.ack = ok;
6333 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 6334}
6335
6336
4b9841d3 6337static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 6338 u8 *buf, size_t len)
0915d02c 6339{
9b90955e
JB		 6340 struct ieee80211_hdr *hdr = (void *)buf;
6341 u16 fc;
f8b1f695 6342 union wpa_event_data event;
9b90955e
JB		 6343
6344 if (len < sizeof(*hdr))
6345 return;
6346
6347 fc = le_to_host16(hdr->frame_control);
6348
f8b1f695 6349 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 6350 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
6351 event.rx_from_unknown.addr = hdr->addr2;
6352 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
6353 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 6354 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 6355}
0915d02c 6356
4b9841d3
JM		 6357
6358static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 6359 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 6360{
6361 struct ieee80211_hdr *hdr;
f8b1f695
JM		 6362 u16 fc;
6363 union wpa_event_data event;
0915d02c
JM		 6364
6365 hdr = (struct ieee80211_hdr *) buf;
6366 fc = le_to_host16(hdr->frame_control);
0915d02c 6367
4b9841d3 6368 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 6369 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 6370 os_memset(&event, 0, sizeof(event));
6371 event.rx_mgmt.frame = buf;
6372 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 6373 event.rx_mgmt.datarate = datarate;
6374 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 6375 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 6376 break;
6377 case WLAN_FC_TYPE_CTRL:
6378 /* can only get here with PS-Poll frames */
6379 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 6380 from_unknown_sta(drv, buf, len);
0915d02c
JM		 6381 break;
6382 case WLAN_FC_TYPE_DATA:
0d9fc3d8 6383 from_unknown_sta(drv, buf, len);
0915d02c
JM		 6384 break;
6385 }
6386}
6387
6388
6389static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
6390{
6391 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6392 int len;
6393 unsigned char buf[3000];
6394 struct ieee80211_radiotap_iterator iter;
6395 int ret;
2a8b7416 6396 int datarate = 0, ssi_signal = 0;
4b9841d3 6397 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 6398
6399 len = recv(sock, buf, sizeof(buf), 0);
6400 if (len < 0) {
6401 perror("recv");
6402 return;
6403 }
6404
6405 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
6406 printf("received invalid radiotap frame\n");
6407 return;
6408 }
6409
0915d02c
JM		 6410 while (1) {
6411 ret = ieee80211_radiotap_iterator_next(&iter);
6412 if (ret == -ENOENT)
6413 break;
6414 if (ret) {
6415 printf("received invalid radiotap frame (%d)\n", ret);
6416 return;
6417 }
6418 switch (iter.this_arg_index) {
6419 case IEEE80211_RADIOTAP_FLAGS:
6420 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
6421 len -= 4;
6422 break;
6423 case IEEE80211_RADIOTAP_RX_FLAGS:
6424 rxflags = 1;
6425 break;
6426 case IEEE80211_RADIOTAP_TX_FLAGS:
6427 injected = 1;
6428 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
6429 IEEE80211_RADIOTAP_F_TX_FAIL;
6430 break;
6431 case IEEE80211_RADIOTAP_DATA_RETRIES:
6432 break;
6433 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 6434 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 6435 break;
6436 case IEEE80211_RADIOTAP_RATE:
2a8b7416 6437 datarate = *iter.this_arg * 5;
0915d02c 6438 break;
baf513d6
JB		 6439 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
6440 ssi_signal = (s8) *iter.this_arg;
0915d02c
JM		 6441 break;
6442 }
6443 }
6444
6445 if (rxflags && injected)
6446 return;
6447
6448 if (!injected)
4b9841d3 6449 handle_frame(drv, buf + iter.max_length,
2a8b7416 6450 len - iter.max_length, datarate, ssi_signal);
0915d02c 6451 else
4b9841d3
JM		 6452 handle_tx_callback(drv->ctx, buf + iter.max_length,
6453 len - iter.max_length, !failed);
0915d02c
JM		 6454}
6455
6456
6457/*
6458 * we post-process the filter code later and rewrite
6459 * this to the offset to the last instruction
6460 */
6461#define PASS 0xFF
6462#define FAIL 0xFE
6463
6464static struct sock_filter msock_filter_insns[] = {
6465 /*
6466 * do a little-endian load of the radiotap length field
6467 */
6468 /* load lower byte into A */
6469 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
6470 /* put it into X (== index register) */
6471 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6472 /* load upper byte into A */
6473 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
6474 /* left-shift it by 8 */
6475 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
6476 /* or with X */
6477 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
6478 /* put result into X */
6479 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6480
6481 /*
6482 * Allow management frames through, this also gives us those
6483 * management frames that we sent ourselves with status
6484 */
6485 /* load the lower byte of the IEEE 802.11 frame control field */
6486 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6487 /* mask off frame type and version */
6488 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
6489 /* accept frame if it's both 0, fall through otherwise */
6490 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
6491
6492 /*
6493 * TODO: add a bit to radiotap RX flags that indicates
6494 * that the sending station is not associated, then
6495 * add a filter here that filters on our DA and that flag
6496 * to allow us to deauth frames to that bad station.
6497 *
65ae1afd 6498 * For now allow all To DS data frames through.
0915d02c 6499 */
65ae1afd
HS		 6500 /* load the IEEE 802.11 frame control field */
6501 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
6502 /* mask off frame type, version and DS status */
6503 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
6504 /* accept frame if version 0, type 2 and To DS, fall through otherwise
6505 */
6506 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 6507
6508#if 0
6509 /*
fbbfcbac 6510 * drop non-data frames
0915d02c
JM		 6511 */
6512 /* load the lower byte of the frame control field */
6513 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6514 /* mask off QoS bit */
6515 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
6516 /* drop non-data frames */
6517 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 6518#endif
0915d02c 6519 /* load the upper byte of the frame control field */
fbbfcbac 6520 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 6521 /* mask off toDS/fromDS */
6522 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 6523 /* accept WDS frames */
6524 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 6525
6526 /*
6527 * add header length to index
6528 */
6529 /* load the lower byte of the frame control field */
6530 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6531 /* mask off QoS bit */
6532 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
6533 /* right shift it by 6 to give 0 or 2 */
6534 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
6535 /* add data frame header length */
6536 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
6537 /* add index, was start of 802.11 header */
6538 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
6539 /* move to index, now start of LL header */
6540 BPF_STMT(BPF_MISC | BPF_TAX, 0),
6541
6542 /*
6543 * Accept empty data frames, we use those for
6544 * polling activity.
6545 */
6546 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
6547 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
6548
6549 /*
6550 * Accept EAPOL frames
6551 */
6552 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
6553 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
6554 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
6555 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
6556
6557 /* keep these last two statements or change the code below */
6558 /* return 0 == "DROP" */
6559 BPF_STMT(BPF_RET | BPF_K, 0),
6560 /* return ~0 == "keep all" */
6561 BPF_STMT(BPF_RET | BPF_K, ~0),
6562};
6563
6564static struct sock_fprog msock_filter = {
6565 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
6566 .filter = msock_filter_insns,
6567};
6568
6569
6570static int add_monitor_filter(int s)
6571{
6572 int idx;
6573
6574 /* rewrite all PASS/FAIL jump offsets */
6575 for (idx = 0; idx < msock_filter.len; idx++) {
6576 struct sock_filter *insn = &msock_filter_insns[idx];
6577
6578 if (BPF_CLASS(insn->code) == BPF_JMP) {
6579 if (insn->code == (BPF_JMP|BPF_JA)) {
6580 if (insn->k == PASS)
6581 insn->k = msock_filter.len - idx - 2;
6582 else if (insn->k == FAIL)
6583 insn->k = msock_filter.len - idx - 3;
6584 }
6585
6586 if (insn->jt == PASS)
6587 insn->jt = msock_filter.len - idx - 2;
6588 else if (insn->jt == FAIL)
6589 insn->jt = msock_filter.len - idx - 3;
6590
6591 if (insn->jf == PASS)
6592 insn->jf = msock_filter.len - idx - 2;
6593 else if (insn->jf == FAIL)
6594 insn->jf = msock_filter.len - idx - 3;
6595 }
6596 }
6597
6598 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
6599 &msock_filter, sizeof(msock_filter))) {
6600 perror("SO_ATTACH_FILTER");
6601 return -1;
6602 }
6603
6604 return 0;
6605}
6606
6607
460456f8
JM		 6608static void nl80211_remove_monitor_interface(
6609 struct wpa_driver_nl80211_data *drv)
6610{
3fd1cefb
JB		 6611 drv->monitor_refcount--;
6612 if (drv->monitor_refcount > 0)
6613 return;
6614
460456f8
JM		 6615 if (drv->monitor_ifidx >= 0) {
6616 nl80211_remove_iface(drv, drv->monitor_ifidx);
6617 drv->monitor_ifidx = -1;
6618 }
504e905c
JM		 6619 if (drv->monitor_sock >= 0) {
6620 eloop_unregister_read_sock(drv->monitor_sock);
6621 close(drv->monitor_sock);
6622 drv->monitor_sock = -1;
6623 }
460456f8
JM		 6624}
6625
6626
0915d02c
JM		 6627static int
6628nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
6629{
6630 char buf[IFNAMSIZ];
6631 struct sockaddr_ll ll;
6632 int optval;
6633 socklen_t optlen;
0915d02c 6634
3fd1cefb
JB		 6635 if (drv->monitor_ifidx >= 0) {
6636 drv->monitor_refcount++;
6637 return 0;
6638 }
6639
6758b167
JJ		 6640 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
6641 /*
6642 * P2P interface name is of the format p2p-%s-%d. For monitor
6643 * interface name corresponding to P2P GO, replace "p2p-" with
6644 * "mon-" to retain the same interface name length and to
6645 * indicate that it is a monitor interface.
6646 */
6647 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
6648 } else {
6649 /* Non-P2P interface with AP functionality. */
6650 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
6651 }
6652
0915d02c
JM		 6653 buf[IFNAMSIZ - 1] = '\0';
6654
6655 drv->monitor_ifidx =
fbbfcbac
FF		 6656 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
6657 0);
0915d02c 6658
866af8b6 6659 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 6660 /*
6661 * This is backward compatibility for a few versions of
6662 * the kernel only that didn't advertise the right
6663 * attributes for the only driver that then supported
6664 * AP mode w/o monitor -- ath6kl.
6665 */
866af8b6
JM		 6666 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
6667 "monitor interface type - try to run without it");
61cbe2ff 6668 drv->device_ap_sme = 1;
866af8b6
JM		 6669 }
6670
0915d02c
JM		 6671 if (drv->monitor_ifidx < 0)
6672 return -1;
6673
c81eff1a 6674 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 6675 goto error;
0915d02c
JM		 6676
6677 memset(&ll, 0, sizeof(ll));
6678 ll.sll_family = AF_PACKET;
6679 ll.sll_ifindex = drv->monitor_ifidx;
6680 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
6681 if (drv->monitor_sock < 0) {
6682 perror("socket[PF_PACKET,SOCK_RAW]");
6683 goto error;
6684 }
6685
6686 if (add_monitor_filter(drv->monitor_sock)) {
6687 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
6688 "interface; do filtering in user space");
6689 /* This works, but will cost in performance. */
6690 }
6691
2135f224 6692 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 6693 perror("monitor socket bind");
6694 goto error;
6695 }
6696
6697 optlen = sizeof(optval);
6698 optval = 20;
6699 if (setsockopt
6700 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
6701 perror("Failed to set socket priority");
6702 goto error;
6703 }
6704
6705 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
6706 drv, NULL)) {
6707 printf("Could not register monitor read socket\n");
6708 goto error;
6709 }
6710
6711 return 0;
6712 error:
460456f8 6713 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 6714 return -1;
6715}
6716
db149ac9 6717
3fd1cefb
JB		 6718static int nl80211_setup_ap(struct i802_bss *bss)
6719{
6720 struct wpa_driver_nl80211_data *drv = bss->drv;
6721
36488c05
JM		 6722 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
6723 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
6724
a11241fa
JB		 6725 /*
6726 * Disable Probe Request reporting unless we need it in this way for
6727 * devices that include the AP SME, in the other case (unless using
6728 * monitor iface) we'll get it through the nl_mgmt socket instead.
6729 */
6730 if (!drv->device_ap_sme)
6731 wpa_driver_nl80211_probe_req_report(bss, 0);
6732
6733 if (!drv->device_ap_sme && !drv->use_monitor)
6734 if (nl80211_mgmt_subscribe_ap(bss))
6735 return -1;
6736
a6cc0602
JM		 6737 if (drv->device_ap_sme && !drv->use_monitor)
6738 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
6739 return -1;
6740
a11241fa 6741 if (!drv->device_ap_sme && drv->use_monitor &&
3fd1cefb
JB		 6742 nl80211_create_monitor_interface(drv) &&
6743 !drv->device_ap_sme)
6744 return -1;
6745
6746 if (drv->device_ap_sme &&
6747 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
6748 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
6749 "Probe Request frame reporting in AP mode");
6750 /* Try to survive without this */
6751 }
6752
6753 return 0;
6754}
6755
6756
6757static void nl80211_teardown_ap(struct i802_bss *bss)
6758{
6759 struct wpa_driver_nl80211_data *drv = bss->drv;
6760
a6cc0602 6761 if (drv->device_ap_sme) {
3fd1cefb 6762 wpa_driver_nl80211_probe_req_report(bss, 0);
a6cc0602
JM		 6763 if (!drv->use_monitor)
6764 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
6765 } else if (drv->use_monitor)
3fd1cefb 6766 nl80211_remove_monitor_interface(drv);
a11241fa 6767 else
36488c05 6768 nl80211_mgmt_unsubscribe(bss, "AP teardown");
a11241fa 6769
3fd1cefb
JB		 6770 bss->beacon_set = 0;
6771}
6772
6773
f10bfc9a
JM		 6774static int nl80211_send_eapol_data(struct i802_bss *bss,
6775 const u8 *addr, const u8 *data,
d12dab4c 6776 size_t data_len)
f10bfc9a 6777{
d12dab4c
JB		 6778 struct sockaddr_ll ll;
6779 int ret;
6780
6781 if (bss->drv->eapol_tx_sock < 0) {
6782 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 6783 return -1;
6784 }
6785
d12dab4c
JB		 6786 os_memset(&ll, 0, sizeof(ll));
6787 ll.sll_family = AF_PACKET;
6788 ll.sll_ifindex = bss->ifindex;
6789 ll.sll_protocol = htons(ETH_P_PAE);
6790 ll.sll_halen = ETH_ALEN;
6791 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
6792 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
6793 (struct sockaddr *) &ll, sizeof(ll));
6794 if (ret < 0)
6795 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
6796 strerror(errno));
6797
6798 return ret;
f10bfc9a 6799}
5fb1a232 6800
f10bfc9a 6801
db149ac9
JM		 6802static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
6803
6804static int wpa_driver_nl80211_hapd_send_eapol(
6805 void *priv, const u8 *addr, const u8 *data,
4378fc14 6806 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 6807{
a2e40bb6
FF		 6808 struct i802_bss *bss = priv;
6809 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 6810 struct ieee80211_hdr *hdr;
6811 size_t len;
6812 u8 *pos;
6813 int res;
4378fc14 6814 int qos = flags & WPA_STA_WMM;
db149ac9 6815
a11241fa 6816 if (drv->device_ap_sme || !drv->use_monitor)
d12dab4c 6817 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 6818
db149ac9
JM		 6819 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
6820 data_len;
6821 hdr = os_zalloc(len);
6822 if (hdr == NULL) {
6823 printf("malloc() failed for i802_send_data(len=%lu)\n",
6824 (unsigned long) len);
6825 return -1;
6826 }
6827
6828 hdr->frame_control =
6829 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
6830 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
6831 if (encrypt)
6832 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 6833 if (qos) {
6834 hdr->frame_control |=
6835 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
6836 }
db149ac9
JM		 6837
6838 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
6839 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
6840 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
6841 pos = (u8 *) (hdr + 1);
6842
db149ac9 6843 if (qos) {
92d521d8
FF		 6844 /* Set highest priority in QoS header */
6845 pos[0] = 7;
db149ac9
JM		 6846 pos[1] = 0;
6847 pos += 2;
6848 }
db149ac9
JM		 6849
6850 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
6851 pos += sizeof(rfc1042_header);
6852 WPA_PUT_BE16(pos, ETH_P_PAE);
6853 pos += 2;
6854 memcpy(pos, data, data_len);
6855
55231068
JM		 6856 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
6857 0, 0, 0, 0);
db149ac9
JM		 6858 if (res < 0) {
6859 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
6860 "failed: %d (%s)",
6861 (unsigned long) len, errno, strerror(errno));
6862 }
7bf12757 6863 os_free(hdr);
db149ac9
JM		 6864
6865 return res;
6866}
6867
a8d6ffa4 6868
3234cba4
JM		 6869static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
6870 int total_flags,
4c32757d 6871 int flags_or, int flags_and)
a8d6ffa4 6872{
a2e40bb6
FF		 6873 struct i802_bss *bss = priv;
6874 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8
JB		 6875 struct nl_msg *msg;
6876 struct nlattr *flags;
7e76ee9c 6877 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 6878
6879 msg = nlmsg_alloc();
6880 if (!msg)
6881 return -ENOMEM;
6882
9fb04070 6883 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 6884
6885 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 6886 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 6887 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6888
7e76ee9c
JM		 6889 /*
6890 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
6891 * can be removed eventually.
6892 */
8970bae8
JB		 6893 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
6894 if (!flags)
6895 goto nla_put_failure;
0de39516 6896 if (total_flags & WPA_STA_AUTHORIZED)
8970bae8 6897 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED);
a8d6ffa4 6898
0de39516 6899 if (total_flags & WPA_STA_WMM)
8970bae8 6900 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME);
a8d6ffa4 6901
0de39516 6902 if (total_flags & WPA_STA_SHORT_PREAMBLE)
8970bae8 6903 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE);
a8d6ffa4 6904
0de39516 6905 if (total_flags & WPA_STA_MFP)
8970bae8 6906 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP);
a8d6ffa4 6907
45b722f1 6908 if (total_flags & WPA_STA_TDLS_PEER)
8970bae8 6909 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER);
45b722f1 6910
8970bae8 6911 nla_nest_end(msg, flags);
a8d6ffa4 6912
7e76ee9c
JM		 6913 os_memset(&upd, 0, sizeof(upd));
6914 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
6915 upd.set = sta_flags_nl80211(flags_or);
6916 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6917
a8d6ffa4
JM		 6918 return send_and_recv_msgs(drv, msg, NULL, NULL);
6919 nla_put_failure:
5883168a 6920 nlmsg_free(msg);
a8d6ffa4
JM		 6921 return -ENOBUFS;
6922}
6923
0915d02c 6924
1581b38b
JM		 6925static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
6926 struct wpa_driver_associate_params *params)
6927{
708bc8e0 6928 enum nl80211_iftype nlmode, old_mode;
89b800d7
JB		 6929 struct hostapd_freq_params freq = {
6930 .freq = params->freq,
6931 };
b1f625e0
EP		 6932
6933 if (params->p2p) {
046b26a2
JM		 6934 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
6935 "group (GO)");
b1f625e0
EP		 6936 nlmode = NL80211_IFTYPE_P2P_GO;
6937 } else
6938 nlmode = NL80211_IFTYPE_AP;
6939
708bc8e0
JM		 6940 old_mode = drv->nlmode;
6941 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) {
6942 nl80211_remove_monitor_interface(drv);
6943 return -1;
6944 }
6945
89b800d7 6946 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) {
708bc8e0
JM		 6947 if (old_mode != nlmode)
6948 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode);
460456f8 6949 nl80211_remove_monitor_interface(drv);
1581b38b 6950 return -1;
0915d02c 6951 }
1581b38b 6952
1581b38b
JM		 6953 return 0;
6954}
1581b38b
JM		 6955
6956
5cc4d64b
JM		 6957static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
6958{
6959 struct nl_msg *msg;
6960 int ret = -1;
6961
6962 msg = nlmsg_alloc();
6963 if (!msg)
6964 return -1;
6965
9fb04070 6966 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 6967 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6968 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6969 msg = NULL;
6970 if (ret) {
6971 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
6972 "(%s)", ret, strerror(-ret));
6973 goto nla_put_failure;
6974 }
6975
6976 ret = 0;
6977 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
6978
6979nla_put_failure:
6980 nlmsg_free(msg);
6981 return ret;
6982}
6983
6984
6985static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
6986 struct wpa_driver_associate_params *params)
6987{
6988 struct nl_msg *msg;
6989 int ret = -1;
6990 int count = 0;
6991
6992 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
6993
b1f625e0
EP		 6994 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
6995 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 6996 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
6997 "IBSS mode");
6998 return -1;
6999 }
7000
7001retry:
7002 msg = nlmsg_alloc();
7003 if (!msg)
7004 return -1;
7005
9fb04070 7006 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 7007 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7008
7009 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
7010 goto nla_put_failure;
7011
7012 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7013 params->ssid, params->ssid_len);
7014 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7015 params->ssid);
7016 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7017 drv->ssid_len = params->ssid_len;
7018
7019 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7020 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
7021
7022 ret = nl80211_set_conn_keys(params, msg);
7023 if (ret)
7024 goto nla_put_failure;
7025
913e3cf7
NC		 7026 if (params->bssid && params->fixed_bssid) {
7027 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
7028 MAC2STR(params->bssid));
7029 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7030 }
7031
e640888c
AQ		 7032 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
7033 params->key_mgmt_suite == KEY_MGMT_PSK ||
7034 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
7035 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
7036 wpa_printf(MSG_DEBUG, " * control port");
7037 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7038 }
7039
a95795ad
JM		 7040 if (params->wpa_ie) {
7041 wpa_hexdump(MSG_DEBUG,
7042 " * Extra IEs for Beacon/Probe Response frames",
7043 params->wpa_ie, params->wpa_ie_len);
7044 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7045 params->wpa_ie);
7046 }
7047
5cc4d64b
JM		 7048 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7049 msg = NULL;
7050 if (ret) {
7051 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
7052 ret, strerror(-ret));
7053 count++;
7054 if (ret == -EALREADY && count == 1) {
7055 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
7056 "forced leave");
7057 nl80211_leave_ibss(drv);
7058 nlmsg_free(msg);
7059 goto retry;
7060 }
7061
7062 goto nla_put_failure;
7063 }
7064 ret = 0;
7065 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
7066
7067nla_put_failure:
7068 nlmsg_free(msg);
7069 return ret;
7070}
7071
7072
a8c5b43a 7073static int wpa_driver_nl80211_try_connect(
cfaab580
ZY		 7074 struct wpa_driver_nl80211_data *drv,
7075 struct wpa_driver_associate_params *params)
7076{
7077 struct nl_msg *msg;
7078 enum nl80211_auth_type type;
7079 int ret = 0;
3f360238 7080 int algs;
cfaab580
ZY		 7081
7082 msg = nlmsg_alloc();
7083 if (!msg)
7084 return -1;
7085
7086 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 7087 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 7088
7089 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7090 if (params->bssid) {
7091 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
7092 MAC2STR(params->bssid));
7093 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7094 }
7095 if (params->freq) {
7096 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7097 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
7098 }
1f6c0ab8
BS		 7099 if (params->bg_scan_period >= 0) {
7100 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
7101 params->bg_scan_period);
7102 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
7103 params->bg_scan_period);
7104 }
cfaab580
ZY		 7105 if (params->ssid) {
7106 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7107 params->ssid, params->ssid_len);
7108 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7109 params->ssid);
7110 if (params->ssid_len > sizeof(drv->ssid))
7111 goto nla_put_failure;
7112 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7113 drv->ssid_len = params->ssid_len;
7114 }
7115 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
7116 if (params->wpa_ie)
7117 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7118 params->wpa_ie);
7119
3f360238
JM		 7120 algs = 0;
7121 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
7122 algs++;
7123 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
7124 algs++;
7125 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
7126 algs++;
7127 if (algs > 1) {
7128 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
7129 "selection");
7130 goto skip_auth_type;
7131 }
7132
abd9fafa 7133 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 7134 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 7135 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 7136 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 7137 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 7138 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 7139 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 7140 type = NL80211_AUTHTYPE_FT;
7141 else
7142 goto nla_put_failure;
7143
7144 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
7145 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
7146
3f360238 7147skip_auth_type:
64fa840a
JM		 7148 if (params->wpa_proto) {
7149 enum nl80211_wpa_versions ver = 0;
cfaab580 7150
64fa840a
JM		 7151 if (params->wpa_proto & WPA_PROTO_WPA)
7152 ver |= NL80211_WPA_VERSION_1;
7153 if (params->wpa_proto & WPA_PROTO_RSN)
7154 ver |= NL80211_WPA_VERSION_2;
cfaab580 7155
64fa840a 7156 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 7157 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
7158 }
7159
7160 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 7161 int cipher;
cfaab580
ZY		 7162
7163 switch (params->pairwise_suite) {
369c8d7b
JM		 7164 case CIPHER_SMS4:
7165 cipher = WLAN_CIPHER_SUITE_SMS4;
7166 break;
cfaab580
ZY		 7167 case CIPHER_WEP40:
7168 cipher = WLAN_CIPHER_SUITE_WEP40;
7169 break;
7170 case CIPHER_WEP104:
7171 cipher = WLAN_CIPHER_SUITE_WEP104;
7172 break;
7173 case CIPHER_CCMP:
7174 cipher = WLAN_CIPHER_SUITE_CCMP;
7175 break;
eb7719ff
JM		 7176 case CIPHER_GCMP:
7177 cipher = WLAN_CIPHER_SUITE_GCMP;
7178 break;
cfaab580
ZY		 7179 case CIPHER_TKIP:
7180 default:
7181 cipher = WLAN_CIPHER_SUITE_TKIP;
7182 break;
7183 }
7184 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
7185 }
7186
7187 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 7188 int cipher;
cfaab580
ZY		 7189
7190 switch (params->group_suite) {
369c8d7b
JM		 7191 case CIPHER_SMS4:
7192 cipher = WLAN_CIPHER_SUITE_SMS4;
7193 break;
cfaab580
ZY		 7194 case CIPHER_WEP40:
7195 cipher = WLAN_CIPHER_SUITE_WEP40;
7196 break;
7197 case CIPHER_WEP104:
7198 cipher = WLAN_CIPHER_SUITE_WEP104;
7199 break;
7200 case CIPHER_CCMP:
7201 cipher = WLAN_CIPHER_SUITE_CCMP;
7202 break;
eb7719ff
JM		 7203 case CIPHER_GCMP:
7204 cipher = WLAN_CIPHER_SUITE_GCMP;
7205 break;
cfaab580
ZY		 7206 case CIPHER_TKIP:
7207 default:
7208 cipher = WLAN_CIPHER_SUITE_TKIP;
7209 break;
7210 }
7211 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7212 }
7213
7214 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
369c8d7b 7215 params->key_mgmt_suite == KEY_MGMT_PSK ||
6a1ce395
DG		 7216 params->key_mgmt_suite == KEY_MGMT_FT_802_1X ||
7217 params->key_mgmt_suite == KEY_MGMT_FT_PSK ||
369c8d7b 7218 params->key_mgmt_suite == KEY_MGMT_CCKM) {
cfaab580
ZY		 7219 int mgmt = WLAN_AKM_SUITE_PSK;
7220
7221 switch (params->key_mgmt_suite) {
369c8d7b
JM		 7222 case KEY_MGMT_CCKM:
7223 mgmt = WLAN_AKM_SUITE_CCKM;
7224 break;
cfaab580
ZY		 7225 case KEY_MGMT_802_1X:
7226 mgmt = WLAN_AKM_SUITE_8021X;
7227 break;
6a1ce395
DG		 7228 case KEY_MGMT_FT_802_1X:
7229 mgmt = WLAN_AKM_SUITE_FT_8021X;
7230 break;
7231 case KEY_MGMT_FT_PSK:
7232 mgmt = WLAN_AKM_SUITE_FT_PSK;
7233 break;
cfaab580
ZY		 7234 case KEY_MGMT_PSK:
7235 default:
7236 mgmt = WLAN_AKM_SUITE_PSK;
7237 break;
7238 }
7239 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
7240 }
7241
8b706a99
JM		 7242#ifdef CONFIG_IEEE80211W
7243 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
7244 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
7245#endif /* CONFIG_IEEE80211W */
7246
80e8a5ee
BG		 7247 if (params->disable_ht)
7248 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
7249
7250 if (params->htcaps && params->htcaps_mask) {
7251 int sz = sizeof(struct ieee80211_ht_capabilities);
7252 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
7253 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
7254 params->htcaps_mask);
7255 }
7256
e9ee8dc3
JB		 7257#ifdef CONFIG_VHT_OVERRIDES
7258 if (params->disable_vht) {
7259 wpa_printf(MSG_DEBUG, " * VHT disabled");
7260 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
7261 }
7262
7263 if (params->vhtcaps && params->vhtcaps_mask) {
7264 int sz = sizeof(struct ieee80211_vht_capabilities);
7265 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
7266 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
7267 params->vhtcaps_mask);
7268 }
7269#endif /* CONFIG_VHT_OVERRIDES */
7270
cfaab580
ZY		 7271 ret = nl80211_set_conn_keys(params, msg);
7272 if (ret)
7273 goto nla_put_failure;
7274
7275 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7276 msg = NULL;
7277 if (ret) {
7278 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
7279 "(%s)", ret, strerror(-ret));
7280 goto nla_put_failure;
7281 }
7282 ret = 0;
7283 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
7284
7285nla_put_failure:
7286 nlmsg_free(msg);
7287 return ret;
7288
7289}
7290
7291
a8c5b43a
CW		 7292static int wpa_driver_nl80211_connect(
7293 struct wpa_driver_nl80211_data *drv,
7294 struct wpa_driver_associate_params *params)
7295{
7296 int ret = wpa_driver_nl80211_try_connect(drv, params);
7297 if (ret == -EALREADY) {
7298 /*
7299 * cfg80211 does not currently accept new connections if
7300 * we are already connected. As a workaround, force
7301 * disconnection and try again.
7302 */
7303 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
7304 "disconnecting before reassociation "
7305 "attempt");
7306 if (wpa_driver_nl80211_disconnect(
7307 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
7308 return -1;
7309 /* Ignore the next local disconnect message. */
7310 drv->ignore_next_local_disconnect = 1;
7311 ret = wpa_driver_nl80211_try_connect(drv, params);
7312 }
7313 return ret;
7314}
7315
7316
c2a04078
JM		 7317static int wpa_driver_nl80211_associate(
7318 void *priv, struct wpa_driver_associate_params *params)
7319{
a2e40bb6
FF		 7320 struct i802_bss *bss = priv;
7321 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 7322 int ret = -1;
7323 struct nl_msg *msg;
7324
5cc4d64b 7325 if (params->mode == IEEE80211_MODE_AP)
1581b38b 7326 return wpa_driver_nl80211_ap(drv, params);
1581b38b 7327
5cc4d64b
JM		 7328 if (params->mode == IEEE80211_MODE_IBSS)
7329 return wpa_driver_nl80211_ibss(drv, params);
7330
4a867032 7331 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 7332 enum nl80211_iftype nlmode = params->p2p ?
7333 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
7334
7335 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 7336 return -1;
cfaab580 7337 return wpa_driver_nl80211_connect(drv, params);
4a867032 7338 }
cfaab580 7339
c2a04078
JM		 7340 drv->associated = 0;
7341
7342 msg = nlmsg_alloc();
7343 if (!msg)
7344 return -1;
7345
7346 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
7347 drv->ifindex);
9fb04070 7348 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 7349
7350 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7351 if (params->bssid) {
7352 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
7353 MAC2STR(params->bssid));
7354 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7355 }
7356 if (params->freq) {
7357 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7358 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 7359 drv->assoc_freq = params->freq;
7360 } else
7361 drv->assoc_freq = 0;
1f6c0ab8
BS		 7362 if (params->bg_scan_period >= 0) {
7363 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
7364 params->bg_scan_period);
7365 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
7366 params->bg_scan_period);
7367 }
c2a04078
JM		 7368 if (params->ssid) {
7369 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7370 params->ssid, params->ssid_len);
7371 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7372 params->ssid);
fd05d64e
JM		 7373 if (params->ssid_len > sizeof(drv->ssid))
7374 goto nla_put_failure;
7375 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7376 drv->ssid_len = params->ssid_len;
c2a04078
JM		 7377 }
7378 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
7379 if (params->wpa_ie)
7380 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7381 params->wpa_ie);
7382
aca01605
JM		 7383 if (params->pairwise_suite != CIPHER_NONE) {
7384 int cipher;
7385
7386 switch (params->pairwise_suite) {
7387 case CIPHER_WEP40:
7388 cipher = WLAN_CIPHER_SUITE_WEP40;
7389 break;
7390 case CIPHER_WEP104:
7391 cipher = WLAN_CIPHER_SUITE_WEP104;
7392 break;
7393 case CIPHER_CCMP:
7394 cipher = WLAN_CIPHER_SUITE_CCMP;
7395 break;
eb7719ff
JM		 7396 case CIPHER_GCMP:
7397 cipher = WLAN_CIPHER_SUITE_GCMP;
7398 break;
aca01605
JM		 7399 case CIPHER_TKIP:
7400 default:
7401 cipher = WLAN_CIPHER_SUITE_TKIP;
7402 break;
7403 }
79c3124c 7404 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 7405 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
7406 }
7407
7408 if (params->group_suite != CIPHER_NONE) {
7409 int cipher;
7410
7411 switch (params->group_suite) {
7412 case CIPHER_WEP40:
7413 cipher = WLAN_CIPHER_SUITE_WEP40;
7414 break;
7415 case CIPHER_WEP104:
7416 cipher = WLAN_CIPHER_SUITE_WEP104;
7417 break;
7418 case CIPHER_CCMP:
7419 cipher = WLAN_CIPHER_SUITE_CCMP;
7420 break;
eb7719ff
JM		 7421 case CIPHER_GCMP:
7422 cipher = WLAN_CIPHER_SUITE_GCMP;
7423 break;
aca01605
JM		 7424 case CIPHER_TKIP:
7425 default:
7426 cipher = WLAN_CIPHER_SUITE_TKIP;
7427 break;
7428 }
79c3124c 7429 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 7430 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7431 }
7432
e572fa33
JM		 7433#ifdef CONFIG_IEEE80211W
7434 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
7435 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
7436#endif /* CONFIG_IEEE80211W */
7437
01652550
JM		 7438 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7439
62fa124c
JM		 7440 if (params->prev_bssid) {
7441 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
7442 MAC2STR(params->prev_bssid));
7443 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
7444 params->prev_bssid);
7445 }
7446
80e8a5ee
BG		 7447 if (params->disable_ht)
7448 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
7449
7450 if (params->htcaps && params->htcaps_mask) {
7451 int sz = sizeof(struct ieee80211_ht_capabilities);
7452 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
7453 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
7454 params->htcaps_mask);
7455 }
7456
e9ee8dc3
JB		 7457#ifdef CONFIG_VHT_OVERRIDES
7458 if (params->disable_vht) {
7459 wpa_printf(MSG_DEBUG, " * VHT disabled");
7460 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
7461 }
7462
7463 if (params->vhtcaps && params->vhtcaps_mask) {
7464 int sz = sizeof(struct ieee80211_vht_capabilities);
7465 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
7466 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
7467 params->vhtcaps_mask);
7468 }
7469#endif /* CONFIG_VHT_OVERRIDES */
7470
046b26a2
JM		 7471 if (params->p2p)
7472 wpa_printf(MSG_DEBUG, " * P2P group");
7473
c2a04078
JM		 7474 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7475 msg = NULL;
7476 if (ret) {
3b7ea880
BG		 7477 wpa_dbg(drv->ctx, MSG_DEBUG,
7478 "nl80211: MLME command failed (assoc): ret=%d (%s)",
7479 ret, strerror(-ret));
8856462d 7480 nl80211_dump_scan(drv);
c2a04078
JM		 7481 goto nla_put_failure;
7482 }
7483 ret = 0;
7484 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
7485 "successfully");
7486
7487nla_put_failure:
7488 nlmsg_free(msg);
7489 return ret;
7490}
3f5285e8
JM		 7491
7492
ad1e68e6 7493static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 7494 int ifindex, enum nl80211_iftype mode)
3f5285e8 7495{
3f5285e8 7496 struct nl_msg *msg;
ad1e68e6
JM		 7497 int ret = -ENOBUFS;
7498
a1922f93
JM		 7499 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
7500 ifindex, mode, nl80211_iftype_str(mode));
7501
ad1e68e6
JM		 7502 msg = nlmsg_alloc();
7503 if (!msg)
7504 return -ENOMEM;
7505
9fb04070 7506 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 7507 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7508 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
7509
7510 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7511 msg = NULL;
ad1e68e6
JM		 7512 if (!ret)
7513 return 0;
7514nla_put_failure:
5883168a 7515 nlmsg_free(msg);
ad1e68e6
JM		 7516 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
7517 " %d (%s)", ifindex, mode, ret, strerror(-ret));
7518 return ret;
7519}
7520
7521
b1f625e0
EP		 7522static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
7523 enum nl80211_iftype nlmode)
ad1e68e6 7524{
a2e40bb6 7525 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 7526 int ret = -1;
26af9dca 7527 int i;
86957e62 7528 int was_ap = is_ap_interface(drv->nlmode);
671a5039 7529 int res;
1581b38b 7530
671a5039
JM		 7531 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
7532 if (res == 0) {
ad1e68e6 7533 drv->nlmode = nlmode;
460456f8
JM		 7534 ret = 0;
7535 goto done;
ad1e68e6 7536 }
3f5285e8 7537
671a5039
JM		 7538 if (res == -ENODEV)
7539 return -1;
7540
460456f8 7541 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 7542 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
7543 "requested mode - ignore error");
460456f8
JM		 7544 ret = 0;
7545 goto done; /* Already in the requested mode */
7546 }
3f5285e8 7547
3f5285e8
JM		 7548 /* mac80211 doesn't allow mode changes while the device is up, so
7549 * take the device down, try to set the mode again, and bring the
7550 * device back up.
7551 */
26af9dca
JM		 7552 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
7553 "interface down");
7554 for (i = 0; i < 10; i++) {
c81eff1a
BG		 7555 res = linux_set_iface_flags(drv->global->ioctl_sock,
7556 bss->ifname, 0);
6e8183d7
JM		 7557 if (res == -EACCES || res == -ENODEV)
7558 break;
7559 if (res == 0) {
26af9dca
JM		 7560 /* Try to set the mode again while the interface is
7561 * down */
7562 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 7563 if (ret == -EACCES)
7564 break;
c81eff1a 7565 res = linux_set_iface_flags(drv->global->ioctl_sock,
6e8183d7
JM		 7566 bss->ifname, 1);
7567 if (res && !ret)
26af9dca 7568 ret = -1;
6e8183d7 7569 else if (ret != -EBUSY)
26af9dca
JM		 7570 break;
7571 } else
7572 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
7573 "interface down");
7574 os_sleep(0, 100000);
3f5285e8
JM		 7575 }
7576
c6e8e8e4
JM		 7577 if (!ret) {
7578 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
7579 "interface is down");
ad1e68e6 7580 drv->nlmode = nlmode;
7d9c3698 7581 drv->ignore_if_down_event = 1;
c6e8e8e4 7582 }
ad1e68e6 7583
460456f8 7584done:
3fd1cefb
JB		 7585 if (ret) {
7586 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
7587 "from %d failed", nlmode, drv->nlmode);
7588 return ret;
7589 }
7590
edb9bfba
RM		 7591 if (is_p2p_interface(nlmode))
7592 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1d0c6fb1
JM		 7593 else if (drv->disabled_11b_rates)
7594 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
edb9bfba 7595
3fd1cefb 7596 if (is_ap_interface(nlmode)) {
36488c05 7597 nl80211_mgmt_unsubscribe(bss, "start AP");
460456f8 7598 /* Setup additional AP mode functionality if needed */
3fd1cefb 7599 if (nl80211_setup_ap(bss))
460456f8 7600 return -1;
3fd1cefb 7601 } else if (was_ap) {
460456f8 7602 /* Remove additional AP mode functionality */
3fd1cefb 7603 nl80211_teardown_ap(bss);
a11241fa 7604 } else {
36488c05 7605 nl80211_mgmt_unsubscribe(bss, "mode change");
460456f8 7606 }
460456f8 7607
873d0fcf 7608 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
a11241fa
JB		 7609 nl80211_mgmt_subscribe_non_ap(bss) < 0)
7610 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
7611 "frame processing - ignore for now");
08359050 7612
3fd1cefb 7613 return 0;
3f5285e8
JM		 7614}
7615
7616
3f5285e8
JM		 7617static int wpa_driver_nl80211_get_capa(void *priv,
7618 struct wpa_driver_capa *capa)
7619{
a2e40bb6
FF		 7620 struct i802_bss *bss = priv;
7621 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 7622 if (!drv->has_capability)
7623 return -1;
7624 os_memcpy(capa, &drv->capa, sizeof(*capa));
8cd6b7bc
JB		 7625 if (drv->extended_capa && drv->extended_capa_mask) {
7626 capa->extended_capa = drv->extended_capa;
7627 capa->extended_capa_mask = drv->extended_capa_mask;
7628 capa->extended_capa_len = drv->extended_capa_len;
7629 }
3f5285e8
JM		 7630 return 0;
7631}
7632
7633
7634static int wpa_driver_nl80211_set_operstate(void *priv, int state)
7635{
a2e40bb6
FF		 7636 struct i802_bss *bss = priv;
7637 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 7638
7639 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
7640 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
7641 drv->operstate = state;
36d84860 7642 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 7643 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 7644}
7645
01652550
JM		 7646
7647static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
7648{
a2e40bb6
FF		 7649 struct i802_bss *bss = priv;
7650 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 7651 struct nl_msg *msg;
7652 struct nl80211_sta_flag_update upd;
7653
7654 msg = nlmsg_alloc();
7655 if (!msg)
7656 return -ENOMEM;
7657
9fb04070 7658 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 7659
7660 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7661 if_nametoindex(bss->ifname));
01652550
JM		 7662 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
7663
7664 os_memset(&upd, 0, sizeof(upd));
7665 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
7666 if (authorized)
7667 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
7668 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7669
7670 return send_and_recv_msgs(drv, msg, NULL, NULL);
7671 nla_put_failure:
5883168a 7672 nlmsg_free(msg);
01652550
JM		 7673 return -ENOBUFS;
7674}
7675
3f5285e8 7676
f07ead6a
JM		 7677/* Set kernel driver on given frequency (MHz) */
7678static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 7679{
f07ead6a 7680 struct i802_bss *bss = priv;
89b800d7 7681 return wpa_driver_nl80211_set_freq(bss, freq);
c5121837
JM		 7682}
7683
f7b3920c
JM		 7684
7685#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 7686
c5121837
JM		 7687static inline int min_int(int a, int b)
7688{
7689 if (a < b)
7690 return a;
7691 return b;
7692}
7693
7694
7695static int get_key_handler(struct nl_msg *msg, void *arg)
7696{
7697 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7698 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7699
7700 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7701 genlmsg_attrlen(gnlh, 0), NULL);
7702
7703 /*
7704 * TODO: validate the key index and mac address!
7705 * Otherwise, there's a race condition as soon as
7706 * the kernel starts sending key notifications.
7707 */
7708
7709 if (tb[NL80211_ATTR_KEY_SEQ])
7710 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
7711 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
7712 return NL_SKIP;
7713}
7714
7715
7716static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
7717 int idx, u8 *seq)
7718{
a2e40bb6
FF		 7719 struct i802_bss *bss = priv;
7720 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7721 struct nl_msg *msg;
7722
7723 msg = nlmsg_alloc();
7724 if (!msg)
7725 return -ENOMEM;
7726
9fb04070 7727 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 7728
7729 if (addr)
7730 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7731 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
7732 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
7733
7734 memset(seq, 0, 6);
7735
7736 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
7737 nla_put_failure:
9e088e74 7738 nlmsg_free(msg);
c5121837
JM		 7739 return -ENOBUFS;
7740}
7741
7742
c5121837
JM		 7743static int i802_set_rts(void *priv, int rts)
7744{
a2e40bb6
FF		 7745 struct i802_bss *bss = priv;
7746 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 7747 struct nl_msg *msg;
7748 int ret = -ENOBUFS;
7749 u32 val;
c5121837 7750
ad649451
JM		 7751 msg = nlmsg_alloc();
7752 if (!msg)
7753 return -ENOMEM;
c5121837 7754
ad649451
JM		 7755 if (rts >= 2347)
7756 val = (u32) -1;
7757 else
7758 val = rts;
c5121837 7759
9fb04070 7760 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 7761 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7762 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
7763
7764 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7765 msg = NULL;
ad649451
JM		 7766 if (!ret)
7767 return 0;
7768nla_put_failure:
5883168a 7769 nlmsg_free(msg);
ad649451
JM		 7770 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
7771 "%d (%s)", rts, ret, strerror(-ret));
7772 return ret;
c5121837
JM		 7773}
7774
7775
7776static int i802_set_frag(void *priv, int frag)
7777{
a2e40bb6
FF		 7778 struct i802_bss *bss = priv;
7779 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 7780 struct nl_msg *msg;
7781 int ret = -ENOBUFS;
7782 u32 val;
c5121837 7783
ad649451
JM		 7784 msg = nlmsg_alloc();
7785 if (!msg)
7786 return -ENOMEM;
c5121837 7787
ad649451
JM		 7788 if (frag >= 2346)
7789 val = (u32) -1;
7790 else
7791 val = frag;
c5121837 7792
9fb04070 7793 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 7794 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7795 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
7796
7797 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7798 msg = NULL;
ad649451
JM		 7799 if (!ret)
7800 return 0;
7801nla_put_failure:
5883168a 7802 nlmsg_free(msg);
ad649451
JM		 7803 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
7804 "%d: %d (%s)", frag, ret, strerror(-ret));
7805 return ret;
c5121837
JM		 7806}
7807
7808
c5121837
JM		 7809static int i802_flush(void *priv)
7810{
a2e40bb6
FF		 7811 struct i802_bss *bss = priv;
7812 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7813 struct nl_msg *msg;
82554b10 7814 int res;
c5121837
JM		 7815
7816 msg = nlmsg_alloc();
7817 if (!msg)
7818 return -1;
7819
9fb04070 7820 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 7821
7822 /*
7823 * XXX: FIX! this needs to flush all VLANs too
7824 */
7825 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7826 if_nametoindex(bss->ifname));
c5121837 7827
82554b10
JM		 7828 res = send_and_recv_msgs(drv, msg, NULL, NULL);
7829 if (res) {
7830 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
7831 "(%s)", res, strerror(-res));
7832 }
7833 return res;
c5121837 7834 nla_put_failure:
9e088e74 7835 nlmsg_free(msg);
c5121837
JM		 7836 return -ENOBUFS;
7837}
7838
d732463c
JM		 7839#endif /* HOSTAPD || CONFIG_AP */
7840
c5121837
JM		 7841
7842static int get_sta_handler(struct nl_msg *msg, void *arg)
7843{
7844 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7845 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7846 struct hostap_sta_driver_data *data = arg;
7847 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
7848 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
7849 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
7850 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
7851 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
7852 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
7853 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
dc7785f8 7854 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
c5121837
JM		 7855 };
7856
7857 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7858 genlmsg_attrlen(gnlh, 0), NULL);
7859
7860 /*
7861 * TODO: validate the interface and mac address!
7862 * Otherwise, there's a race condition as soon as
7863 * the kernel starts sending station notifications.
7864 */
7865
7866 if (!tb[NL80211_ATTR_STA_INFO]) {
7867 wpa_printf(MSG_DEBUG, "sta stats missing!");
7868 return NL_SKIP;
7869 }
7870 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
7871 tb[NL80211_ATTR_STA_INFO],
7872 stats_policy)) {
7873 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
7874 return NL_SKIP;
7875 }
7876
7877 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
7878 data->inactive_msec =
7879 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
7880 if (stats[NL80211_STA_INFO_RX_BYTES])
7881 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
7882 if (stats[NL80211_STA_INFO_TX_BYTES])
7883 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
7884 if (stats[NL80211_STA_INFO_RX_PACKETS])
7885 data->rx_packets =
7886 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
7887 if (stats[NL80211_STA_INFO_TX_PACKETS])
7888 data->tx_packets =
7889 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
dc7785f8
YZ		 7890 if (stats[NL80211_STA_INFO_TX_FAILED])
7891 data->tx_retry_failed =
7892 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
c5121837
JM		 7893
7894 return NL_SKIP;
7895}
7896
9ebce9c5
JM		 7897static int i802_read_sta_data(struct i802_bss *bss,
7898 struct hostap_sta_driver_data *data,
c5121837
JM		 7899 const u8 *addr)
7900{
a2e40bb6 7901 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7902 struct nl_msg *msg;
7903
7904 os_memset(data, 0, sizeof(*data));
7905 msg = nlmsg_alloc();
7906 if (!msg)
7907 return -ENOMEM;
7908
9fb04070 7909 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 7910
7911 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 7912 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7913
7914 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
7915 nla_put_failure:
9e088e74 7916 nlmsg_free(msg);
c5121837
JM		 7917 return -ENOBUFS;
7918}
7919
7920
d732463c
JM		 7921#if defined(HOSTAPD) || defined(CONFIG_AP)
7922
c5121837
JM		 7923static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
7924 int cw_min, int cw_max, int burst_time)
7925{
a2e40bb6
FF		 7926 struct i802_bss *bss = priv;
7927 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7928 struct nl_msg *msg;
7929 struct nlattr *txq, *params;
7930
7931 msg = nlmsg_alloc();
7932 if (!msg)
7933 return -1;
7934
9fb04070 7935 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 7936
a2e40bb6 7937 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7938
7939 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
7940 if (!txq)
7941 goto nla_put_failure;
7942
7943 /* We are only sending parameters for a single TXQ at a time */
7944 params = nla_nest_start(msg, 1);
7945 if (!params)
7946 goto nla_put_failure;
7947
7e3c1781
JM		 7948 switch (queue) {
7949 case 0:
7950 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
7951 break;
7952 case 1:
7953 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
7954 break;
7955 case 2:
7956 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
7957 break;
7958 case 3:
7959 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
7960 break;
7961 }
c5121837
JM		 7962 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
7963 * 32 usec, so need to convert the value here. */
7964 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
7965 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
7966 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
7967 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
7968
7969 nla_nest_end(msg, params);
7970
7971 nla_nest_end(msg, txq);
7972
7973 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7974 return 0;
9e088e74 7975 msg = NULL;
c5121837 7976 nla_put_failure:
9e088e74 7977 nlmsg_free(msg);
c5121837
JM		 7978 return -1;
7979}
7980
7981
9ebce9c5 7982static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
c5121837
JM		 7983 const char *ifname, int vlan_id)
7984{
a2e40bb6 7985 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7986 struct nl_msg *msg;
cd1d72c1 7987 int ret = -ENOBUFS;
c5121837
JM		 7988
7989 msg = nlmsg_alloc();
7990 if (!msg)
7991 return -ENOMEM;
7992
9fb04070 7993 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 7994
7995 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7996 if_nametoindex(bss->ifname));
c5121837 7997 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 7998 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 7999 if_nametoindex(ifname));
8000
cd1d72c1 8001 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9e088e74 8002 msg = NULL;
cd1d72c1
JM		 8003 if (ret < 0) {
8004 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
8005 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
8006 MAC2STR(addr), ifname, vlan_id, ret,
8007 strerror(-ret));
8008 }
c5121837 8009 nla_put_failure:
9e088e74 8010 nlmsg_free(msg);
cd1d72c1 8011 return ret;
c5121837
JM		 8012}
8013
fbbfcbac 8014
c5121837
JM		 8015static int i802_get_inact_sec(void *priv, const u8 *addr)
8016{
8017 struct hostap_sta_driver_data data;
8018 int ret;
8019
8020 data.inactive_msec = (unsigned long) -1;
8021 ret = i802_read_sta_data(priv, &data, addr);
8022 if (ret || data.inactive_msec == (unsigned long) -1)
8023 return -1;
8024 return data.inactive_msec / 1000;
8025}
8026
8027
8028static int i802_sta_clear_stats(void *priv, const u8 *addr)
8029{
8030#if 0
8031 /* TODO */
8032#endif
8033 return 0;
8034}
8035
8036
731723a5
JM		 8037static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
8038 int reason)
c5121837 8039{
a2e40bb6 8040 struct i802_bss *bss = priv;
e1bd4e19 8041 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8042 struct ieee80211_mgmt mgmt;
8043
e1bd4e19
AT		 8044 if (drv->device_ap_sme)
8045 return wpa_driver_nl80211_sta_remove(bss, addr);
8046
c5121837
JM		 8047 memset(&mgmt, 0, sizeof(mgmt));
8048 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
8049 WLAN_FC_STYPE_DEAUTH);
8050 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 8051 memcpy(mgmt.sa, own_addr, ETH_ALEN);
8052 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 8053 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 8054 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 8055 IEEE80211_HDRLEN +
9ebce9c5
JM		 8056 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
8057 0);
c5121837
JM		 8058}
8059
8060
731723a5
JM		 8061static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
8062 int reason)
c5121837 8063{
a2e40bb6 8064 struct i802_bss *bss = priv;
e1bd4e19 8065 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8066 struct ieee80211_mgmt mgmt;
8067
e1bd4e19
AT		 8068 if (drv->device_ap_sme)
8069 return wpa_driver_nl80211_sta_remove(bss, addr);
8070
c5121837
JM		 8071 memset(&mgmt, 0, sizeof(mgmt));
8072 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
8073 WLAN_FC_STYPE_DISASSOC);
8074 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 8075 memcpy(mgmt.sa, own_addr, ETH_ALEN);
8076 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 8077 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 8078 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 8079 IEEE80211_HDRLEN +
9ebce9c5
JM		 8080 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
8081 0);
c5121837
JM		 8082}
8083
ee7ab173
JB		 8084#endif /* HOSTAPD || CONFIG_AP */
8085
8086#ifdef HOSTAPD
c5121837 8087
f07ead6a
JM		 8088static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8089{
8090 int i;
8091 int *old;
8092
8093 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
8094 ifidx);
8095 for (i = 0; i < drv->num_if_indices; i++) {
8096 if (drv->if_indices[i] == 0) {
8097 drv->if_indices[i] = ifidx;
8098 return;
8099 }
8100 }
8101
8102 if (drv->if_indices != drv->default_if_indices)
8103 old = drv->if_indices;
8104 else
8105 old = NULL;
8106
067ffa26
JM		 8107 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
8108 sizeof(int));
f07ead6a
JM		 8109 if (!drv->if_indices) {
8110 if (!old)
8111 drv->if_indices = drv->default_if_indices;
8112 else
8113 drv->if_indices = old;
8114 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
8115 "interfaces");
8116 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
8117 return;
8118 } else if (!old)
8119 os_memcpy(drv->if_indices, drv->default_if_indices,
8120 sizeof(drv->default_if_indices));
8121 drv->if_indices[drv->num_if_indices] = ifidx;
8122 drv->num_if_indices++;
8123}
8124
8125
8126static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8127{
8128 int i;
8129
8130 for (i = 0; i < drv->num_if_indices; i++) {
8131 if (drv->if_indices[i] == ifidx) {
8132 drv->if_indices[i] = 0;
8133 break;
8134 }
8135 }
8136}
8137
8138
8139static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8140{
8141 int i;
8142
8143 for (i = 0; i < drv->num_if_indices; i++)
8144 if (drv->if_indices[i] == ifidx)
8145 return 1;
8146
8147 return 0;
8148}
8149
8150
8151static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
8152 const char *bridge_ifname)
8153{
8154 struct i802_bss *bss = priv;
8155 struct wpa_driver_nl80211_data *drv = bss->drv;
8156 char name[IFNAMSIZ + 1];
8157
8158 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
8159 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
8160 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
8161 if (val) {
8162 if (!if_nametoindex(name)) {
8163 if (nl80211_create_iface(drv, name,
8164 NL80211_IFTYPE_AP_VLAN,
c3e3a5b9 8165 bss->addr, 1) < 0)
f07ead6a
JM		 8166 return -1;
8167 if (bridge_ifname &&
c81eff1a
BG		 8168 linux_br_add_if(drv->global->ioctl_sock,
8169 bridge_ifname, name) < 0)
f07ead6a
JM		 8170 return -1;
8171 }
75227f3a
JM		 8172 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
8173 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
8174 "interface %s up", name);
8175 }
f07ead6a
JM		 8176 return i802_set_sta_vlan(priv, addr, name, 0);
8177 } else {
c34e618d
FF		 8178 if (bridge_ifname)
8179 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
8180 name);
8181
f07ead6a
JM		 8182 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
8183 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
8184 name);
8185 }
8186}
8187
8188
8189static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
8190{
8191 struct wpa_driver_nl80211_data *drv = eloop_ctx;
8192 struct sockaddr_ll lladdr;
8193 unsigned char buf[3000];
8194 int len;
8195 socklen_t fromlen = sizeof(lladdr);
8196
8197 len = recvfrom(sock, buf, sizeof(buf), 0,
8198 (struct sockaddr *)&lladdr, &fromlen);
8199 if (len < 0) {
8200 perror("recv");
8201 return;
8202 }
8203
8204 if (have_ifidx(drv, lladdr.sll_ifindex))
8205 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
8206}
8207
8208
94627f6c 8209static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 8210 struct i802_bss *bss,
94627f6c
JM		 8211 const char *brname, const char *ifname)
8212{
8213 int ifindex;
8214 char in_br[IFNAMSIZ];
8215
e17a2477 8216 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 8217 ifindex = if_nametoindex(brname);
8218 if (ifindex == 0) {
8219 /*
8220 * Bridge was configured, but the bridge device does
8221 * not exist. Try to add it now.
8222 */
c81eff1a 8223 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 8224 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
8225 "bridge interface %s: %s",
8226 brname, strerror(errno));
8227 return -1;
8228 }
e17a2477 8229 bss->added_bridge = 1;
94627f6c
JM		 8230 add_ifidx(drv, if_nametoindex(brname));
8231 }
8232
8233 if (linux_br_get(in_br, ifname) == 0) {
8234 if (os_strcmp(in_br, brname) == 0)
8235 return 0; /* already in the bridge */
8236
8237 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
8238 "bridge %s", ifname, in_br);
c81eff1a
BG		 8239 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
8240 0) {
94627f6c
JM		 8241 wpa_printf(MSG_ERROR, "nl80211: Failed to "
8242 "remove interface %s from bridge "
8243 "%s: %s",
8244 ifname, brname, strerror(errno));
8245 return -1;
8246 }
8247 }
8248
8249 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
8250 ifname, brname);
c81eff1a 8251 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 8252 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
8253 "into bridge %s: %s",
8254 ifname, brname, strerror(errno));
8255 return -1;
8256 }
e17a2477 8257 bss->added_if_into_bridge = 1;
94627f6c
JM		 8258
8259 return 0;
8260}
8261
8262
92f475b4
JM		 8263static void *i802_init(struct hostapd_data *hapd,
8264 struct wpa_init_params *params)
c5121837
JM		 8265{
8266 struct wpa_driver_nl80211_data *drv;
a2e40bb6 8267 struct i802_bss *bss;
c5121837 8268 size_t i;
94627f6c
JM		 8269 char brname[IFNAMSIZ];
8270 int ifindex, br_ifindex;
8271 int br_added = 0;
c5121837 8272
4b24282a
JM		 8273 bss = wpa_driver_nl80211_init(hapd, params->ifname,
8274 params->global_priv);
a2e40bb6 8275 if (bss == NULL)
c5121837 8276 return NULL;
c5121837 8277
a2e40bb6 8278 drv = bss->drv;
0382097e 8279 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 8280 drv->eapol_sock = -1;
8281
94627f6c
JM		 8282 if (linux_br_get(brname, params->ifname) == 0) {
8283 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
8284 params->ifname, brname);
8285 br_ifindex = if_nametoindex(brname);
8286 } else {
8287 brname[0] = '\0';
8288 br_ifindex = 0;
8289 }
8290
c5121837
JM		 8291 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
8292 drv->if_indices = drv->default_if_indices;
92f475b4 8293 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 8294 if (params->bridge[i]) {
8295 ifindex = if_nametoindex(params->bridge[i]);
8296 if (ifindex)
8297 add_ifidx(drv, ifindex);
8298 if (ifindex == br_ifindex)
8299 br_added = 1;
8300 }
c5121837 8301 }
94627f6c
JM		 8302 if (!br_added && br_ifindex &&
8303 (params->num_bridge == 0 || !params->bridge[0]))
8304 add_ifidx(drv, br_ifindex);
c5121837 8305
ad1e68e6
JM		 8306 /* start listening for EAPOL on the default AP interface */
8307 add_ifidx(drv, drv->ifindex);
8308
c81eff1a 8309 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 8310 goto failed;
ad1e68e6 8311
6980c191 8312 if (params->bssid) {
c81eff1a 8313 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 8314 params->bssid))
460456f8
JM		 8315 goto failed;
8316 }
ad1e68e6 8317
b1f625e0 8318 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 8319 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 8320 "into AP mode", bss->ifname);
bbaf0837 8321 goto failed;
ad1e68e6
JM		 8322 }
8323
94627f6c 8324 if (params->num_bridge && params->bridge[0] &&
e17a2477 8325 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 8326 goto failed;
8327
c81eff1a 8328 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 8329 goto failed;
ad1e68e6
JM		 8330
8331 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
8332 if (drv->eapol_sock < 0) {
8333 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 8334 goto failed;
ad1e68e6
JM		 8335 }
8336
8337 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
8338 {
8339 printf("Could not register read socket for eapol\n");
c5121837 8340 goto failed;
ad1e68e6
JM		 8341 }
8342
c81eff1a
BG		 8343 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8344 params->own_addr))
bbaf0837 8345 goto failed;
c5121837 8346
341eebee
JB		 8347 memcpy(bss->addr, params->own_addr, ETH_ALEN);
8348
a2e40bb6 8349 return bss;
c5121837
JM		 8350
8351failed:
7635bfb0 8352 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 8353 return NULL;
8354}
c5121837 8355
c5121837 8356
bbaf0837
JM		 8357static void i802_deinit(void *priv)
8358{
9ebce9c5
JM		 8359 struct i802_bss *bss = priv;
8360 wpa_driver_nl80211_deinit(bss);
c5121837
JM		 8361}
8362
8363#endif /* HOSTAPD */
8364
8365
22a7c9d7
JM		 8366static enum nl80211_iftype wpa_driver_nl80211_if_type(
8367 enum wpa_driver_if_type type)
8368{
8369 switch (type) {
8370 case WPA_IF_STATION:
9f51b113 8371 return NL80211_IFTYPE_STATION;
75bde05d
JM		 8372 case WPA_IF_P2P_CLIENT:
8373 case WPA_IF_P2P_GROUP:
9f51b113 8374 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 8375 case WPA_IF_AP_VLAN:
8376 return NL80211_IFTYPE_AP_VLAN;
8377 case WPA_IF_AP_BSS:
8378 return NL80211_IFTYPE_AP;
9f51b113
JB		 8379 case WPA_IF_P2P_GO:
8380 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 8381 }
8382 return -1;
8383}
8384
8385
482856c8
JM		 8386#ifdef CONFIG_P2P
8387
f2ed8023
JM		 8388static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
8389{
8390 struct wpa_driver_nl80211_data *drv;
8391 dl_list_for_each(drv, &global->interfaces,
8392 struct wpa_driver_nl80211_data, list) {
341eebee 8393 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
f2ed8023
JM		 8394 return 1;
8395 }
8396 return 0;
8397}
8398
8399
8400static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
8401 u8 *new_addr)
8402{
8403 unsigned int idx;
8404
8405 if (!drv->global)
8406 return -1;
8407
341eebee 8408 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
f2ed8023 8409 for (idx = 0; idx < 64; idx++) {
341eebee 8410 new_addr[0] = drv->first_bss.addr[0] | 0x02;
f2ed8023
JM		 8411 new_addr[0] ^= idx << 2;
8412 if (!nl80211_addr_in_use(drv->global, new_addr))
8413 break;
8414 }
8415 if (idx == 64)
8416 return -1;
8417
8418 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
8419 MACSTR, MAC2STR(new_addr));
8420
8421 return 0;
8422}
8423
482856c8
JM		 8424#endif /* CONFIG_P2P */
8425
f2ed8023 8426
7ab68865 8427static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 8428 const char *ifname, const u8 *addr,
f3585c8a 8429 void *bss_ctx, void **drv_priv,
e17a2477
JM		 8430 char *force_ifname, u8 *if_addr,
8431 const char *bridge)
22a7c9d7 8432{
a2e40bb6
FF		 8433 struct i802_bss *bss = priv;
8434 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 8435 int ifidx;
8436#ifdef HOSTAPD
a2e40bb6 8437 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 8438
8439 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 8440 new_bss = os_zalloc(sizeof(*new_bss));
8441 if (new_bss == NULL)
22a7c9d7
JM		 8442 return -1;
8443 }
8444#endif /* HOSTAPD */
8445
f3585c8a
JM		 8446 if (addr)
8447 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 8448 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 8449 wpa_driver_nl80211_if_type(type), addr,
8450 0);
22a7c9d7
JM		 8451 if (ifidx < 0) {
8452#ifdef HOSTAPD
a2e40bb6 8453 os_free(new_bss);
22a7c9d7
JM		 8454#endif /* HOSTAPD */
8455 return -1;
8456 }
8457
f3585c8a 8458 if (!addr &&
c81eff1a
BG		 8459 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8460 if_addr) < 0) {
c55f774d 8461 nl80211_remove_iface(drv, ifidx);
f3585c8a 8462 return -1;
c55f774d
JM		 8463 }
8464
8465#ifdef CONFIG_P2P
8466 if (!addr &&
8467 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
8468 type == WPA_IF_P2P_GO)) {
8469 /* Enforce unique P2P Interface Address */
8470 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
8471
c81eff1a
BG		 8472 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8473 own_addr) < 0 ||
8474 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
8475 new_addr) < 0) {
c55f774d
JM		 8476 nl80211_remove_iface(drv, ifidx);
8477 return -1;
8478 }
8479 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
8480 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
8481 "for P2P group interface");
f2ed8023 8482 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 8483 nl80211_remove_iface(drv, ifidx);
8484 return -1;
8485 }
c81eff1a 8486 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 8487 new_addr) < 0) {
8488 nl80211_remove_iface(drv, ifidx);
8489 return -1;
8490 }
c55f774d 8491 }
f67eeb5c 8492 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 8493 }
8494#endif /* CONFIG_P2P */
f3585c8a 8495
22a7c9d7 8496#ifdef HOSTAPD
e17a2477
JM		 8497 if (bridge &&
8498 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
8499 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
8500 "interface %s to a bridge %s", ifname, bridge);
8501 nl80211_remove_iface(drv, ifidx);
8502 os_free(new_bss);
8503 return -1;
8504 }
8505
22a7c9d7 8506 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 8507 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
8508 {
34f2f814 8509 nl80211_remove_iface(drv, ifidx);
07179987 8510 os_free(new_bss);
22a7c9d7
JM		 8511 return -1;
8512 }
a2e40bb6 8513 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
341eebee 8514 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
a2e40bb6
FF		 8515 new_bss->ifindex = ifidx;
8516 new_bss->drv = drv;
8517 new_bss->next = drv->first_bss.next;
a7a6af4c 8518 new_bss->freq = drv->first_bss.freq;
a5e1eb20 8519 new_bss->ctx = bss_ctx;
a2e40bb6
FF		 8520 drv->first_bss.next = new_bss;
8521 if (drv_priv)
8522 *drv_priv = new_bss;
cc7a48d1 8523 nl80211_init_bss(new_bss);
3dd1d890
YAP		 8524
8525 /* Subscribe management frames for this WPA_IF_AP_BSS */
8526 if (nl80211_setup_ap(new_bss))
8527 return -1;
22a7c9d7
JM		 8528 }
8529#endif /* HOSTAPD */
8530
ff6a158b
JM		 8531 if (drv->global)
8532 drv->global->if_add_ifindex = ifidx;
8533
22a7c9d7
JM		 8534 return 0;
8535}
8536
8537
9ebce9c5 8538static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
22a7c9d7
JM		 8539 enum wpa_driver_if_type type,
8540 const char *ifname)
8541{
a2e40bb6 8542 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 8543 int ifindex = if_nametoindex(ifname);
8544
e748062b
JM		 8545 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
8546 __func__, type, ifname, ifindex);
8547 if (ifindex <= 0)
8548 return -1;
e17a2477 8549
c34e618d
FF		 8550 nl80211_remove_iface(drv, ifindex);
8551
e17a2477 8552#ifdef HOSTAPD
c34e618d
FF		 8553 if (type != WPA_IF_AP_BSS)
8554 return 0;
8555
e17a2477 8556 if (bss->added_if_into_bridge) {
c81eff1a
BG		 8557 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
8558 bss->ifname) < 0)
e17a2477
JM		 8559 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
8560 "interface %s from bridge %s: %s",
8561 bss->ifname, bss->brname, strerror(errno));
8562 }
8563 if (bss->added_bridge) {
c81eff1a 8564 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 8565 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
8566 "bridge %s: %s",
8567 bss->brname, strerror(errno));
8568 }
a2e40bb6
FF		 8569
8570 if (bss != &drv->first_bss) {
8546ea19 8571 struct i802_bss *tbss;
a2e40bb6 8572
8546ea19
JM		 8573 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
8574 if (tbss->next == bss) {
8575 tbss->next = bss->next;
3dd1d890
YAP		 8576 /* Unsubscribe management frames */
8577 nl80211_teardown_ap(bss);
cc7a48d1 8578 nl80211_destroy_bss(bss);
8546ea19
JM		 8579 os_free(bss);
8580 bss = NULL;
8581 break;
8582 }
22a7c9d7 8583 }
8546ea19
JM		 8584 if (bss)
8585 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
8586 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 8587 }
8588#endif /* HOSTAPD */
8589
8590 return 0;
8591}
8592
8593
55777702
JM		 8594static int cookie_handler(struct nl_msg *msg, void *arg)
8595{
8596 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8597 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8598 u64 *cookie = arg;
8599 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8600 genlmsg_attrlen(gnlh, 0), NULL);
8601 if (tb[NL80211_ATTR_COOKIE])
8602 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
8603 return NL_SKIP;
8604}
8605
8606
88df0ef7 8607static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 8608 unsigned int freq, unsigned int wait,
8609 const u8 *buf, size_t buf_len,
88df0ef7
JB		 8610 u64 *cookie_out, int no_cck, int no_ack,
8611 int offchanok)
9884f9cc 8612{
88df0ef7 8613 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 8614 struct nl_msg *msg;
8615 u64 cookie;
8616 int ret = -1;
8617
8618 msg = nlmsg_alloc();
8619 if (!msg)
8620 return -1;
8621
cc2ada86 8622 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
2e3e4566
JM		 8623 "no_ack=%d offchanok=%d",
8624 freq, wait, no_cck, no_ack, offchanok);
9fb04070 8625 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 8626
88df0ef7 8627 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9884f9cc 8628 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 8629 if (wait)
8630 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
b9fd8ce8 8631 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
88df0ef7 8632 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 8633 if (no_cck)
8634 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 8635 if (no_ack)
8636 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 8637
9884f9cc
JB		 8638 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
8639
8640 cookie = 0;
8641 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8642 msg = NULL;
8643 if (ret) {
8644 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 8645 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
8646 freq, wait);
9884f9cc
JB		 8647 goto nla_put_failure;
8648 }
cc2ada86 8649 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
ddc53271
JM		 8650 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
8651 (long long unsigned int) cookie);
9884f9cc
JB		 8652
8653 if (cookie_out)
ddc53271 8654 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 8655
8656nla_put_failure:
8657 nlmsg_free(msg);
8658 return ret;
8659}
8660
8661
9ebce9c5
JM		 8662static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
8663 unsigned int freq,
190b9062 8664 unsigned int wait_time,
58f6fbe0
JM		 8665 const u8 *dst, const u8 *src,
8666 const u8 *bssid,
b106173a
JM		 8667 const u8 *data, size_t data_len,
8668 int no_cck)
58f6fbe0 8669{
a2e40bb6 8670 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 8671 int ret = -1;
58f6fbe0
JM		 8672 u8 *buf;
8673 struct ieee80211_hdr *hdr;
58f6fbe0 8674
5dfca53f 8675 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
55231068
JM		 8676 "freq=%u MHz wait=%d ms no_cck=%d)",
8677 drv->ifindex, freq, wait_time, no_cck);
58f6fbe0
JM		 8678
8679 buf = os_zalloc(24 + data_len);
8680 if (buf == NULL)
8681 return ret;
8682 os_memcpy(buf + 24, data, data_len);
8683 hdr = (struct ieee80211_hdr *) buf;
8684 hdr->frame_control =
8685 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
8686 os_memcpy(hdr->addr1, dst, ETH_ALEN);
8687 os_memcpy(hdr->addr2, src, ETH_ALEN);
8688 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
8689
b1f625e0 8690 if (is_ap_interface(drv->nlmode))
9ebce9c5
JM		 8691 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
8692 0, freq, no_cck, 1,
8693 wait_time);
9884f9cc 8694 else
88df0ef7 8695 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 8696 24 + data_len,
b106173a 8697 &drv->send_action_cookie,
88df0ef7 8698 no_cck, 0, 1);
58f6fbe0 8699
f8bf1421 8700 os_free(buf);
58f6fbe0
JM		 8701 return ret;
8702}
8703
8704
5dfca53f
JB		 8705static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
8706{
8707 struct i802_bss *bss = priv;
8708 struct wpa_driver_nl80211_data *drv = bss->drv;
8709 struct nl_msg *msg;
8710 int ret;
8711
8712 msg = nlmsg_alloc();
8713 if (!msg)
8714 return;
8715
316a9e4d
JM		 8716 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
8717 (long long unsigned int) drv->send_action_cookie);
9fb04070 8718 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 8719
8720 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8721 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
8722
8723 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8724 msg = NULL;
8725 if (ret)
8726 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
8727 "(%s)", ret, strerror(-ret));
8728
8729 nla_put_failure:
8730 nlmsg_free(msg);
8731}
8732
8733
55777702
JM		 8734static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
8735 unsigned int duration)
8736{
a2e40bb6
FF		 8737 struct i802_bss *bss = priv;
8738 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 8739 struct nl_msg *msg;
8740 int ret;
8741 u64 cookie;
8742
8743 msg = nlmsg_alloc();
8744 if (!msg)
8745 return -1;
8746
9fb04070 8747 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 8748
8749 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8750 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8751 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
8752
8753 cookie = 0;
8754 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5883168a 8755 msg = NULL;
55777702
JM		 8756 if (ret == 0) {
8757 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
8758 "0x%llx for freq=%u MHz duration=%u",
8759 (long long unsigned int) cookie, freq, duration);
8760 drv->remain_on_chan_cookie = cookie;
531f0331 8761 drv->pending_remain_on_chan = 1;
55777702
JM		 8762 return 0;
8763 }
8764 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 8765 "(freq=%d duration=%u): %d (%s)",
8766 freq, duration, ret, strerror(-ret));
55777702 8767nla_put_failure:
5883168a 8768 nlmsg_free(msg);
55777702
JM		 8769 return -1;
8770}
8771
8772
8773static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
8774{
a2e40bb6
FF		 8775 struct i802_bss *bss = priv;
8776 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 8777 struct nl_msg *msg;
8778 int ret;
8779
8780 if (!drv->pending_remain_on_chan) {
8781 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
8782 "to cancel");
8783 return -1;
8784 }
8785
8786 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
8787 "0x%llx",
8788 (long long unsigned int) drv->remain_on_chan_cookie);
8789
8790 msg = nlmsg_alloc();
8791 if (!msg)
8792 return -1;
8793
9fb04070 8794 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 8795
8796 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8797 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
8798
8799 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8800 msg = NULL;
55777702
JM		 8801 if (ret == 0)
8802 return 0;
8803 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
8804 "%d (%s)", ret, strerror(-ret));
8805nla_put_failure:
5883168a 8806 nlmsg_free(msg);
55777702
JM		 8807 return -1;
8808}
8809
8810
9ebce9c5 8811static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
504e905c 8812{
a2e40bb6 8813 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 8814
5582a5d1 8815 if (!report) {
0d891981
JM		 8816 if (bss->nl_preq && drv->device_ap_sme &&
8817 is_ap_interface(drv->nlmode)) {
8818 /*
8819 * Do not disable Probe Request reporting that was
8820 * enabled in nl80211_setup_ap().
8821 */
8822 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
8823 "Probe Request reporting nl_preq=%p while "
8824 "in AP mode", bss->nl_preq);
8825 } else if (bss->nl_preq) {
36488c05
JM		 8826 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
8827 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 8828 eloop_unregister_read_sock(
481234cf 8829 nl_socket_get_fd(bss->nl_preq));
221a59c9 8830 nl_destroy_handles(&bss->nl_preq);
5582a5d1
JB		 8831 }
8832 return 0;
8833 }
8834
481234cf 8835 if (bss->nl_preq) {
5582a5d1 8836 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
36488c05 8837 "already on! nl_preq=%p", bss->nl_preq);
5582a5d1
JB		 8838 return 0;
8839 }
8840
481234cf
JM		 8841 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
8842 if (bss->nl_preq == NULL)
5582a5d1 8843 return -1;
36488c05
JM		 8844 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
8845 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 8846
481234cf 8847 if (nl80211_register_frame(bss, bss->nl_preq,
5582a5d1
JB		 8848 (WLAN_FC_TYPE_MGMT << 2) |
8849 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 8850 NULL, 0) < 0)
8851 goto out_err;
5582a5d1 8852
481234cf 8853 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
a11241fa 8854 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 8855 bss->nl_preq);
5582a5d1 8856
504e905c 8857 return 0;
5582a5d1 8858
a92dfde8 8859 out_err:
221a59c9 8860 nl_destroy_handles(&bss->nl_preq);
5582a5d1 8861 return -1;
504e905c
JM		 8862}
8863
8864
4e5cb1a3
JM		 8865static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
8866 int ifindex, int disabled)
8867{
8868 struct nl_msg *msg;
8869 struct nlattr *bands, *band;
8870 int ret;
8871
8872 msg = nlmsg_alloc();
8873 if (!msg)
8874 return -1;
8875
9fb04070 8876 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 8877 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
8878
8879 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
8880 if (!bands)
8881 goto nla_put_failure;
8882
8883 /*
8884 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
8885 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
8886 * rates. All 5 GHz rates are left enabled.
8887 */
8888 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
8889 if (!band)
8890 goto nla_put_failure;
1dea5882
JM		 8891 if (disabled) {
8892 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
8893 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8894 }
4e5cb1a3
JM		 8895 nla_nest_end(msg, band);
8896
8897 nla_nest_end(msg, bands);
8898
8899 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8900 msg = NULL;
8901 if (ret) {
8902 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
8903 "(%s)", ret, strerror(-ret));
1d0c6fb1
JM		 8904 } else
8905 drv->disabled_11b_rates = disabled;
4e5cb1a3
JM		 8906
8907 return ret;
8908
8909nla_put_failure:
8910 nlmsg_free(msg);
8911 return -1;
8912}
8913
8914
af473088
JM		 8915static int wpa_driver_nl80211_deinit_ap(void *priv)
8916{
a2e40bb6
FF		 8917 struct i802_bss *bss = priv;
8918 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 8919 if (!is_ap_interface(drv->nlmode))
af473088
JM		 8920 return -1;
8921 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 8922 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 8923}
8924
8925
3c29244e
EP		 8926static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
8927{
8928 struct i802_bss *bss = priv;
8929 struct wpa_driver_nl80211_data *drv = bss->drv;
8930 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
8931 return -1;
8932 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
8933}
8934
8935
207ef3fb
JM		 8936static void wpa_driver_nl80211_resume(void *priv)
8937{
a2e40bb6
FF		 8938 struct i802_bss *bss = priv;
8939 struct wpa_driver_nl80211_data *drv = bss->drv;
c81eff1a 8940 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 8941 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
8942 "resume event");
8943 }
8944}
8945
8946
7b90c16a
JM		 8947static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
8948 const u8 *ies, size_t ies_len)
8949{
8950 struct i802_bss *bss = priv;
8951 struct wpa_driver_nl80211_data *drv = bss->drv;
8952 int ret;
8953 u8 *data, *pos;
8954 size_t data_len;
341eebee 8955 const u8 *own_addr = bss->addr;
7b90c16a
JM		 8956
8957 if (action != 1) {
8958 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
8959 "action %d", action);
8960 return -1;
8961 }
8962
8963 /*
8964 * Action frame payload:
8965 * Category[1] = 6 (Fast BSS Transition)
8966 * Action[1] = 1 (Fast BSS Transition Request)
8967 * STA Address
8968 * Target AP Address
8969 * FT IEs
8970 */
8971
73fc617d
JM		 8972 data_len = 2 + 2 * ETH_ALEN + ies_len;
8973 data = os_malloc(data_len);
7b90c16a
JM		 8974 if (data == NULL)
8975 return -1;
8976 pos = data;
8977 *pos++ = 0x06; /* FT Action category */
8978 *pos++ = action;
8979 os_memcpy(pos, own_addr, ETH_ALEN);
8980 pos += ETH_ALEN;
8981 os_memcpy(pos, target_ap, ETH_ALEN);
8982 pos += ETH_ALEN;
8983 os_memcpy(pos, ies, ies_len);
8984
190b9062
JB		 8985 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
8986 drv->bssid, own_addr, drv->bssid,
b106173a 8987 data, data_len, 0);
7b90c16a
JM		 8988 os_free(data);
8989
8990 return ret;
8991}
8992
8993
b625473c
JM		 8994static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
8995{
8996 struct i802_bss *bss = priv;
8997 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8
JB		 8998 struct nl_msg *msg;
8999 struct nlattr *cqm;
f0494d0f 9000 int ret = -1;
b625473c
JM		 9001
9002 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
9003 "hysteresis=%d", threshold, hysteresis);
9004
9005 msg = nlmsg_alloc();
9006 if (!msg)
9007 return -1;
9008
9fb04070 9009 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 9010
9011 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9012
8970bae8 9013 cqm = nla_nest_start(msg, NL80211_ATTR_CQM);
b625473c 9014 if (cqm == NULL)
21270bb4 9015 goto nla_put_failure;
b625473c 9016
8970bae8
JB		 9017 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
9018 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
9019 nla_nest_end(msg, cqm);
21270bb4 9020
f0494d0f 9021 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
b625473c
JM		 9022 msg = NULL;
9023
9024nla_put_failure:
b625473c 9025 nlmsg_free(msg);
f0494d0f 9026 return ret;
b625473c
JM		 9027}
9028
9029
1c5c7273
PS		 9030static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
9031{
9032 struct i802_bss *bss = priv;
9033 struct wpa_driver_nl80211_data *drv = bss->drv;
9034 int res;
9035
9036 os_memset(si, 0, sizeof(*si));
9037 res = nl80211_get_link_signal(drv, si);
9038 if (res != 0)
9039 return res;
9040
9041 return nl80211_get_link_noise(drv, si);
9042}
9043
9044
57ebba59
JJ		 9045static int wpa_driver_nl80211_shared_freq(void *priv)
9046{
9047 struct i802_bss *bss = priv;
9048 struct wpa_driver_nl80211_data *drv = bss->drv;
9049 struct wpa_driver_nl80211_data *driver;
9050 int freq = 0;
9051
9052 /*
9053 * If the same PHY is in connected state with some other interface,
9054 * then retrieve the assoc freq.
9055 */
9056 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
9057 drv->phyname);
9058
9059 dl_list_for_each(driver, &drv->global->interfaces,
9060 struct wpa_driver_nl80211_data, list) {
9061 if (drv == driver ||
9062 os_strcmp(drv->phyname, driver->phyname) != 0 ||
9063 !driver->associated)
9064 continue;
9065
9066 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
9067 MACSTR,
9068 driver->phyname, driver->first_bss.ifname,
341eebee 9069 MAC2STR(driver->first_bss.addr));
d3bd0f05
JJ		 9070 if (is_ap_interface(driver->nlmode))
9071 freq = driver->first_bss.freq;
9072 else
9073 freq = nl80211_get_assoc_freq(driver);
57ebba59
JJ		 9074 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
9075 drv->phyname, freq);
9076 }
9077
9078 if (!freq)
9079 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
9080 "PHY (%s) in associated state", drv->phyname);
9081
9082 return freq;
9083}
9084
9085
b91ab76e
JM		 9086static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
9087 int encrypt)
9088{
9089 struct i802_bss *bss = priv;
55231068
JM		 9090 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
9091 0, 0, 0, 0);
b91ab76e
JM		 9092}
9093
9094
c55f774d
JM		 9095static int nl80211_set_param(void *priv, const char *param)
9096{
c55f774d
JM		 9097 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
9098 if (param == NULL)
9099 return 0;
9100
9101#ifdef CONFIG_P2P
9102 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 9103 struct i802_bss *bss = priv;
9104 struct wpa_driver_nl80211_data *drv = bss->drv;
9105
c55f774d
JM		 9106 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
9107 "interface");
9108 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
9109 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
9110 }
9111#endif /* CONFIG_P2P */
9112
9113 return 0;
9114}
9115
9116
f2ed8023
JM		 9117static void * nl80211_global_init(void)
9118{
9119 struct nl80211_global *global;
36d84860
BG		 9120 struct netlink_config *cfg;
9121
f2ed8023
JM		 9122 global = os_zalloc(sizeof(*global));
9123 if (global == NULL)
9124 return NULL;
c81eff1a 9125 global->ioctl_sock = -1;
f2ed8023 9126 dl_list_init(&global->interfaces);
ff6a158b 9127 global->if_add_ifindex = -1;
36d84860
BG		 9128
9129 cfg = os_zalloc(sizeof(*cfg));
9130 if (cfg == NULL)
9131 goto err;
9132
9133 cfg->ctx = global;
9134 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
9135 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
9136 global->netlink = netlink_init(cfg);
9137 if (global->netlink == NULL) {
9138 os_free(cfg);
9139 goto err;
9140 }
9141
2a7b66f5
BG		 9142 if (wpa_driver_nl80211_init_nl_global(global) < 0)
9143 goto err;
9144
c81eff1a
BG		 9145 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
9146 if (global->ioctl_sock < 0) {
9147 perror("socket(PF_INET,SOCK_DGRAM)");
9148 goto err;
9149 }
9150
f2ed8023 9151 return global;
36d84860
BG		 9152
9153err:
9154 nl80211_global_deinit(global);
9155 return NULL;
f2ed8023
JM		 9156}
9157
9158
9159static void nl80211_global_deinit(void *priv)
9160{
9161 struct nl80211_global *global = priv;
9162 if (global == NULL)
9163 return;
9164 if (!dl_list_empty(&global->interfaces)) {
9165 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
9166 "nl80211_global_deinit",
9167 dl_list_len(&global->interfaces));
9168 }
36d84860
BG		 9169
9170 if (global->netlink)
9171 netlink_deinit(global->netlink);
9172
276e2d67
BG		 9173 nl_destroy_handles(&global->nl);
9174
481234cf 9175 if (global->nl_event) {
d6c9aab8 9176 eloop_unregister_read_sock(
481234cf 9177 nl_socket_get_fd(global->nl_event));
d6c9aab8
JB		 9178 nl_destroy_handles(&global->nl_event);
9179 }
9180
9181 nl_cb_put(global->nl_cb);
2a7b66f5 9182
c81eff1a
BG		 9183 if (global->ioctl_sock >= 0)
9184 close(global->ioctl_sock);
9185
f2ed8023
JM		 9186 os_free(global);
9187}
9188
9189
6859f1cb
BG		 9190static const char * nl80211_get_radio_name(void *priv)
9191{
9192 struct i802_bss *bss = priv;
9193 struct wpa_driver_nl80211_data *drv = bss->drv;
9194 return drv->phyname;
9195}
9196
9197
a6efc65d
JM		 9198static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
9199 const u8 *pmkid)
9200{
9201 struct nl_msg *msg;
9202
9203 msg = nlmsg_alloc();
9204 if (!msg)
9205 return -ENOMEM;
9206
9fb04070 9207 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 9208
9209 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
9210 if (pmkid)
9211 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
9212 if (bssid)
9213 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
9214
9215 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
9216 nla_put_failure:
9e088e74 9217 nlmsg_free(msg);
a6efc65d
JM		 9218 return -ENOBUFS;
9219}
9220
9221
9222static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
9223{
9224 struct i802_bss *bss = priv;
9225 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
9226 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
9227}
9228
9229
9230static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
9231{
9232 struct i802_bss *bss = priv;
9233 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
9234 MAC2STR(bssid));
9235 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
9236}
9237
9238
9239static int nl80211_flush_pmkid(void *priv)
9240{
9241 struct i802_bss *bss = priv;
9242 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
9243 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
9244}
9245
9246
b14a210c
JB		 9247static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
9248 const u8 *replay_ctr)
9249{
9250 struct i802_bss *bss = priv;
9251 struct wpa_driver_nl80211_data *drv = bss->drv;
9252 struct nlattr *replay_nested;
9253 struct nl_msg *msg;
9254
9255 msg = nlmsg_alloc();
9256 if (!msg)
9257 return;
9258
9fb04070 9259 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 9260
9261 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9262
9263 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9264 if (!replay_nested)
9265 goto nla_put_failure;
9266
9267 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
9268 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
9269 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
9270 replay_ctr);
9271
9272 nla_nest_end(msg, replay_nested);
9273
9274 send_and_recv_msgs(drv, msg, NULL, NULL);
9275 return;
9276 nla_put_failure:
9277 nlmsg_free(msg);
9278}
9279
9280
39718852
JB		 9281static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
9282 const u8 *addr, int qos)
bcf24348 9283{
39718852
JB		 9284 /* send data frame to poll STA and check whether
9285 * this frame is ACKed */
bcf24348
JB		 9286 struct {
9287 struct ieee80211_hdr hdr;
9288 u16 qos_ctl;
9289 } STRUCT_PACKED nulldata;
9290 size_t size;
9291
9292 /* Send data frame to poll STA and check whether this frame is ACKed */
9293
9294 os_memset(&nulldata, 0, sizeof(nulldata));
9295
9296 if (qos) {
9297 nulldata.hdr.frame_control =
9298 IEEE80211_FC(WLAN_FC_TYPE_DATA,
9299 WLAN_FC_STYPE_QOS_NULL);
9300 size = sizeof(nulldata);
9301 } else {
9302 nulldata.hdr.frame_control =
9303 IEEE80211_FC(WLAN_FC_TYPE_DATA,
9304 WLAN_FC_STYPE_NULLFUNC);
9305 size = sizeof(struct ieee80211_hdr);
9306 }
9307
9308 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
9309 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
9310 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
9311 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
9312
9ebce9c5
JM		 9313 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
9314 0, 0) < 0)
bcf24348
JB		 9315 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
9316 "send poll frame");
9317}
9318
39718852
JB		 9319static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
9320 int qos)
9321{
9322 struct i802_bss *bss = priv;
9323 struct wpa_driver_nl80211_data *drv = bss->drv;
9324 struct nl_msg *msg;
9325
9326 if (!drv->poll_command_supported) {
9327 nl80211_send_null_frame(bss, own_addr, addr, qos);
9328 return;
9329 }
9330
9331 msg = nlmsg_alloc();
9332 if (!msg)
9333 return;
9334
9335 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
9336
9337 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9338 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
9339
9340 send_and_recv_msgs(drv, msg, NULL, NULL);
9341 return;
9342 nla_put_failure:
9343 nlmsg_free(msg);
9344}
9345
bcf24348 9346
29f338af
JM		 9347static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
9348{
9349 struct nl_msg *msg;
9350
9351 msg = nlmsg_alloc();
9352 if (!msg)
9353 return -ENOMEM;
9354
9355 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
9356 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9357 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
9358 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
9359 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
9360nla_put_failure:
9361 nlmsg_free(msg);
9362 return -ENOBUFS;
9363}
9364
9365
9366static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
9367 int ctwindow)
9368{
9369 struct i802_bss *bss = priv;
9370
9371 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
9372 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
9373
9374 if (opp_ps != -1 || ctwindow != -1)
9375 return -1; /* Not yet supported */
9376
9377 if (legacy_ps == -1)
9378 return 0;
9379 if (legacy_ps != 0 && legacy_ps != 1)
9380 return -1; /* Not yet supported */
9381
9382 return nl80211_set_power_save(bss, legacy_ps);
9383}
9384
9385
03ea1786
AN		 9386#ifdef CONFIG_TDLS
9387
9388static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
9389 u8 dialog_token, u16 status_code,
9390 const u8 *buf, size_t len)
9391{
9392 struct i802_bss *bss = priv;
9393 struct wpa_driver_nl80211_data *drv = bss->drv;
9394 struct nl_msg *msg;
9395
9396 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
9397 return -EOPNOTSUPP;
9398
9399 if (!dst)
9400 return -EINVAL;
9401
9402 msg = nlmsg_alloc();
9403 if (!msg)
9404 return -ENOMEM;
9405
9406 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
9407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9408 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
9409 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
9410 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
9411 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
9412 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
9413
9414 return send_and_recv_msgs(drv, msg, NULL, NULL);
9415
9416nla_put_failure:
9417 nlmsg_free(msg);
9418 return -ENOBUFS;
9419}
9420
9421
9422static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
9423{
9424 struct i802_bss *bss = priv;
9425 struct wpa_driver_nl80211_data *drv = bss->drv;
9426 struct nl_msg *msg;
9427 enum nl80211_tdls_operation nl80211_oper;
9428
9429 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
9430 return -EOPNOTSUPP;
9431
9432 switch (oper) {
9433 case TDLS_DISCOVERY_REQ:
9434 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
9435 break;
9436 case TDLS_SETUP:
9437 nl80211_oper = NL80211_TDLS_SETUP;
9438 break;
9439 case TDLS_TEARDOWN:
9440 nl80211_oper = NL80211_TDLS_TEARDOWN;
9441 break;
9442 case TDLS_ENABLE_LINK:
9443 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
9444 break;
9445 case TDLS_DISABLE_LINK:
9446 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
9447 break;
9448 case TDLS_ENABLE:
9449 return 0;
9450 case TDLS_DISABLE:
9451 return 0;
9452 default:
9453 return -EINVAL;
9454 }
9455
9456 msg = nlmsg_alloc();
9457 if (!msg)
9458 return -ENOMEM;
9459
9460 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
9461 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
9462 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9463 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
9464
9465 return send_and_recv_msgs(drv, msg, NULL, NULL);
9466
9467nla_put_failure:
9468 nlmsg_free(msg);
9469 return -ENOBUFS;
9470}
9471
9472#endif /* CONFIG TDLS */
9473
9474
216eede8
DS		 9475#ifdef ANDROID
9476
9477typedef struct android_wifi_priv_cmd {
9478 char *buf;
9479 int used_len;
9480 int total_len;
9481} android_wifi_priv_cmd;
9482
9483static int drv_errors = 0;
9484
9485static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
9486{
9487 drv_errors++;
9488 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
9489 drv_errors = 0;
9490 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
9491 }
9492}
9493
9494
9495static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
9496{
9497 struct wpa_driver_nl80211_data *drv = bss->drv;
9498 struct ifreq ifr;
9499 android_wifi_priv_cmd priv_cmd;
9500 char buf[MAX_DRV_CMD_SIZE];
9501 int ret;
9502
9503 os_memset(&ifr, 0, sizeof(ifr));
9504 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
9505 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9506
9507 os_memset(buf, 0, sizeof(buf));
9508 os_strlcpy(buf, cmd, sizeof(buf));
9509
9510 priv_cmd.buf = buf;
9511 priv_cmd.used_len = sizeof(buf);
9512 priv_cmd.total_len = sizeof(buf);
9513 ifr.ifr_data = &priv_cmd;
9514
9515 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9516 if (ret < 0) {
9517 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
9518 __func__);
9519 wpa_driver_send_hang_msg(drv);
9520 return ret;
9521 }
9522
9523 drv_errors = 0;
9524 return 0;
9525}
9526
9527
9528static int android_pno_start(struct i802_bss *bss,
9529 struct wpa_driver_scan_params *params)
9530{
9531 struct wpa_driver_nl80211_data *drv = bss->drv;
9532 struct ifreq ifr;
9533 android_wifi_priv_cmd priv_cmd;
9534 int ret = 0, i = 0, bp;
9535 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
9536
9537 bp = WEXT_PNOSETUP_HEADER_SIZE;
9538 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
9539 buf[bp++] = WEXT_PNO_TLV_PREFIX;
9540 buf[bp++] = WEXT_PNO_TLV_VERSION;
9541 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
9542 buf[bp++] = WEXT_PNO_TLV_RESERVED;
9543
9544 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
9545 /* Check that there is enough space needed for 1 more SSID, the
9546 * other sections and null termination */
9547 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
9548 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
9549 break;
9550 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
a97bde0a
JM		 9551 params->ssids[i].ssid,
9552 params->ssids[i].ssid_len);
216eede8
DS		 9553 buf[bp++] = WEXT_PNO_SSID_SECTION;
9554 buf[bp++] = params->ssids[i].ssid_len;
9555 os_memcpy(&buf[bp], params->ssids[i].ssid,
9556 params->ssids[i].ssid_len);
9557 bp += params->ssids[i].ssid_len;
9558 i++;
9559 }
9560
9561 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
9562 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
9563 WEXT_PNO_SCAN_INTERVAL);
9564 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
9565
9566 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
9567 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
9568 WEXT_PNO_REPEAT);
9569 bp += WEXT_PNO_REPEAT_LENGTH;
9570
9571 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
9572 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
9573 WEXT_PNO_MAX_REPEAT);
9574 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
9575
9576 memset(&ifr, 0, sizeof(ifr));
9577 memset(&priv_cmd, 0, sizeof(priv_cmd));
9578 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9579
9580 priv_cmd.buf = buf;
9581 priv_cmd.used_len = bp;
9582 priv_cmd.total_len = bp;
9583 ifr.ifr_data = &priv_cmd;
9584
9585 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9586
9587 if (ret < 0) {
9588 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
9589 ret);
9590 wpa_driver_send_hang_msg(drv);
9591 return ret;
9592 }
9593
9594 drv_errors = 0;
9595
9596 return android_priv_cmd(bss, "PNOFORCE 1");
9597}
9598
9599
9600static int android_pno_stop(struct i802_bss *bss)
9601{
9602 return android_priv_cmd(bss, "PNOFORCE 0");
9603}
9604
9605#endif /* ANDROID */
9606
9607
9ebce9c5
JM		 9608static int driver_nl80211_set_key(const char *ifname, void *priv,
9609 enum wpa_alg alg, const u8 *addr,
9610 int key_idx, int set_tx,
9611 const u8 *seq, size_t seq_len,
9612 const u8 *key, size_t key_len)
9613{
9614 struct i802_bss *bss = priv;
9615 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
9616 set_tx, seq, seq_len, key, key_len);
9617}
9618
9619
9620static int driver_nl80211_scan2(void *priv,
9621 struct wpa_driver_scan_params *params)
9622{
9623 struct i802_bss *bss = priv;
9624 return wpa_driver_nl80211_scan(bss, params);
9625}
9626
9627
9628static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
9629 int reason_code)
9630{
9631 struct i802_bss *bss = priv;
9632 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
9633}
9634
9635
9636static int driver_nl80211_authenticate(void *priv,
9637 struct wpa_driver_auth_params *params)
9638{
9639 struct i802_bss *bss = priv;
9640 return wpa_driver_nl80211_authenticate(bss, params);
9641}
9642
9643
9644static void driver_nl80211_deinit(void *priv)
9645{
9646 struct i802_bss *bss = priv;
9647 wpa_driver_nl80211_deinit(bss);
9648}
9649
9650
9651static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
9652 const char *ifname)
9653{
9654 struct i802_bss *bss = priv;
9655 return wpa_driver_nl80211_if_remove(bss, type, ifname);
9656}
9657
9658
9659static int driver_nl80211_send_mlme(void *priv, const u8 *data,
9660 size_t data_len, int noack)
9661{
9662 struct i802_bss *bss = priv;
9663 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
9664 0, 0, 0, 0);
9665}
9666
9667
9668static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
9669{
9670 struct i802_bss *bss = priv;
9671 return wpa_driver_nl80211_sta_remove(bss, addr);
9672}
9673
9674
9675#if defined(HOSTAPD) || defined(CONFIG_AP)
9676static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
9677 const char *ifname, int vlan_id)
9678{
9679 struct i802_bss *bss = priv;
9680 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
9681}
9682#endif /* HOSTAPD || CONFIG_AP */
9683
9684
9685static int driver_nl80211_read_sta_data(void *priv,
9686 struct hostap_sta_driver_data *data,
9687 const u8 *addr)
9688{
9689 struct i802_bss *bss = priv;
9690 return i802_read_sta_data(bss, data, addr);
9691}
9692
9693
9694static int driver_nl80211_send_action(void *priv, unsigned int freq,
9695 unsigned int wait_time,
9696 const u8 *dst, const u8 *src,
9697 const u8 *bssid,
9698 const u8 *data, size_t data_len,
9699 int no_cck)
9700{
9701 struct i802_bss *bss = priv;
9702 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
9703 bssid, data, data_len, no_cck);
9704}
9705
9706
9707static int driver_nl80211_probe_req_report(void *priv, int report)
9708{
9709 struct i802_bss *bss = priv;
9710 return wpa_driver_nl80211_probe_req_report(bss, report);
9711}
9712
9713
6a1ce395
DG		 9714static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
9715 const u8 *ies, size_t ies_len)
9716{
9717 int ret;
9718 struct nl_msg *msg;
9719 struct i802_bss *bss = priv;
9720 struct wpa_driver_nl80211_data *drv = bss->drv;
9721 u16 mdid = WPA_GET_LE16(md);
9722
9723 msg = nlmsg_alloc();
9724 if (!msg)
9725 return -ENOMEM;
9726
9727 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
9728 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES);
9729 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9730 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
9731 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid);
9732
9733 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9734 if (ret) {
9735 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
9736 "err=%d (%s)", ret, strerror(-ret));
9737 }
9738
9739 return ret;
9740
9741nla_put_failure:
9742 nlmsg_free(msg);
9743 return -ENOBUFS;
9744}
9745
9746
3f5285e8
JM		 9747const struct wpa_driver_ops wpa_driver_nl80211_ops = {
9748 .name = "nl80211",
9749 .desc = "Linux nl80211/cfg80211",
9750 .get_bssid = wpa_driver_nl80211_get_bssid,
9751 .get_ssid = wpa_driver_nl80211_get_ssid,
9ebce9c5
JM		 9752 .set_key = driver_nl80211_set_key,
9753 .scan2 = driver_nl80211_scan2,
d21c63b9
LC		 9754 .sched_scan = wpa_driver_nl80211_sched_scan,
9755 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8 9756 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9ebce9c5
JM		 9757 .deauthenticate = driver_nl80211_deauthenticate,
9758 .authenticate = driver_nl80211_authenticate,
3f5285e8 9759 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 9760 .global_init = nl80211_global_init,
9761 .global_deinit = nl80211_global_deinit,
9762 .init2 = wpa_driver_nl80211_init,
9ebce9c5 9763 .deinit = driver_nl80211_deinit,
3f5285e8
JM		 9764 .get_capa = wpa_driver_nl80211_get_capa,
9765 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 9766 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 9767 .set_country = wpa_driver_nl80211_set_country,
19c3b566 9768 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7 9769 .if_add = wpa_driver_nl80211_if_add,
9ebce9c5
JM		 9770 .if_remove = driver_nl80211_if_remove,
9771 .send_mlme = driver_nl80211_send_mlme,
c3965310 9772 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f 9773 .sta_add = wpa_driver_nl80211_sta_add,
9ebce9c5 9774 .sta_remove = driver_nl80211_sta_remove,
db149ac9 9775 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 9776 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 9777#ifdef HOSTAPD
9778 .hapd_init = i802_init,
c5121837 9779 .hapd_deinit = i802_deinit,
f7b3920c
JM		 9780 .set_wds_sta = i802_set_wds_sta,
9781#endif /* HOSTAPD */
9782#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 9783 .get_seqnum = i802_get_seqnum,
9784 .flush = i802_flush,
c5121837
JM		 9785 .get_inact_sec = i802_get_inact_sec,
9786 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 9787 .set_rts = i802_set_rts,
9788 .set_frag = i802_set_frag,
c5121837 9789 .set_tx_queue_params = i802_set_tx_queue_params,
9ebce9c5 9790 .set_sta_vlan = driver_nl80211_set_sta_vlan,
ee7ab173
JB		 9791 .sta_deauth = i802_sta_deauth,
9792 .sta_disassoc = i802_sta_disassoc,
9793#endif /* HOSTAPD || CONFIG_AP */
9ebce9c5 9794 .read_sta_data = driver_nl80211_read_sta_data,
e3802622 9795 .set_freq = i802_set_freq,
9ebce9c5 9796 .send_action = driver_nl80211_send_action,
5dfca53f 9797 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 9798 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
9799 .cancel_remain_on_channel =
9800 wpa_driver_nl80211_cancel_remain_on_channel,
9ebce9c5 9801 .probe_req_report = driver_nl80211_probe_req_report,
af473088 9802 .deinit_ap = wpa_driver_nl80211_deinit_ap,
3c29244e 9803 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
207ef3fb 9804 .resume = wpa_driver_nl80211_resume,
7b90c16a 9805 .send_ft_action = nl80211_send_ft_action,
b625473c 9806 .signal_monitor = nl80211_signal_monitor,
1c5c7273 9807 .signal_poll = nl80211_signal_poll,
b91ab76e 9808 .send_frame = nl80211_send_frame,
57ebba59 9809 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 9810 .set_param = nl80211_set_param,
6859f1cb 9811 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 9812 .add_pmkid = nl80211_add_pmkid,
9813 .remove_pmkid = nl80211_remove_pmkid,
9814 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 9815 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 9816 .poll_client = nl80211_poll_client,
29f338af 9817 .set_p2p_powersave = nl80211_set_p2p_powersave,
03ea1786
AN		 9818#ifdef CONFIG_TDLS
9819 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
9820 .tdls_oper = nl80211_tdls_oper,
9821#endif /* CONFIG_TDLS */
6a1ce395 9822 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
3f5285e8 9823};
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