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nl80211: Use one CB for driver event RX
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
CommitLineData
3f5285e8 1/*
c5121837 2 * Driver interaction with Linux nl80211/cfg80211
8d923a4a 3 * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi>
072ad14c
JM		 4 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5 * Copyright (c) 2005-2006, Devicescape Software, Inc.
6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
58f6fbe0 7 * Copyright (c) 2009-2010, Atheros Communications
3f5285e8
JM		 8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * Alternatively, this software may be distributed under the terms of BSD
14 * license.
15 *
16 * See README and COPYING for more details.
17 */
18
19#include "includes.h"
20#include <sys/ioctl.h>
6859f1cb
BG		 21#include <sys/types.h>
22#include <sys/stat.h>
23#include <fcntl.h>
37b7d082 24#include <net/if.h>
3f5285e8
JM		 25#include <netlink/genl/genl.h>
26#include <netlink/genl/family.h>
27#include <netlink/genl/ctrl.h>
8602b0f2 28#include <linux/rtnetlink.h>
1b648c7e
JM		 29#include <netpacket/packet.h>
30#include <linux/filter.h>
32ab4855 31#include <linux/errqueue.h>
7e45830a 32#include "nl80211_copy.h"
625f587b 33
3f5285e8 34#include "common.h"
1b648c7e 35#include "eloop.h"
f2ed8023 36#include "utils/list.h"
1b648c7e 37#include "common/ieee802_11_defs.h"
9b90955e 38#include "common/ieee802_11_common.h"
f10bfc9a 39#include "l2_packet/l2_packet.h"
e2d02c29 40#include "netlink.h"
34f2f814 41#include "linux_ioctl.h"
e2d02c29
JM		 42#include "radiotap.h"
43#include "radiotap_iter.h"
8401a6b0 44#include "rfkill.h"
1b648c7e 45#include "driver.h"
0915d02c 46
32ab4855
JB		 47#ifndef SO_WIFI_STATUS
48# if defined(__sparc__)
49# define SO_WIFI_STATUS 0x0025
50# elif defined(__parisc__)
51# define SO_WIFI_STATUS 0x4022
52# else
53# define SO_WIFI_STATUS 41
54# endif
55
56# define SCM_WIFI_STATUS SO_WIFI_STATUS
57#endif
58
59#ifndef SO_EE_ORIGIN_TXSTATUS
60#define SO_EE_ORIGIN_TXSTATUS 4
61#endif
62
63#ifndef PACKET_TX_TIMESTAMP
64#define PACKET_TX_TIMESTAMP 16
65#endif
66
216eede8
DS		 67#ifdef ANDROID
68#include "android_drv.h"
69#endif /* ANDROID */
c5121837
JM		 70#ifdef CONFIG_LIBNL20
71/* libnl 2.0 compatibility code */
2e8eac2d 72#define nl_handle nl_sock
a65a9aed
JB		 73#define nl80211_handle_alloc nl_socket_alloc_cb
74#define nl80211_handle_destroy nl_socket_free
75#else
76/*
77 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
78 * but when you free a socket again it will mess up its bitmap and
79 * and use the wrong number the next time it needs a socket ID.
80 * Therefore, we wrap the handle alloc/destroy and add our own pid
81 * accounting.
82 */
83static uint32_t port_bitmap[32] = { 0 };
84
85static struct nl_handle *nl80211_handle_alloc(void *cb)
86{
87 struct nl_handle *handle;
88 uint32_t pid = getpid() & 0x3FFFFF;
89 int i;
90
91 handle = nl_handle_alloc_cb(cb);
92
93 for (i = 0; i < 1024; i++) {
94 if (port_bitmap[i / 32] & (1 << (i % 32)))
95 continue;
96 port_bitmap[i / 32] |= 1 << (i % 32);
97 pid += i << 22;
98 break;
99 }
100
101 nl_socket_set_local_port(handle, pid);
102
103 return handle;
104}
105
106static void nl80211_handle_destroy(struct nl_handle *handle)
107{
108 uint32_t port = nl_socket_get_local_port(handle);
109
110 port >>= 22;
111 port_bitmap[port / 32] &= ~(1 << (port % 32));
112
113 nl_handle_destroy(handle);
114}
c5121837
JM		 115#endif /* CONFIG_LIBNL20 */
116
c5121837 117
a92dfde8
JB		 118struct nl80211_handles {
119 struct nl_handle *handle;
a92dfde8
JB		 120};
121
122
123static int nl_create_handles(struct nl80211_handles *handles, struct nl_cb *cb,
124 const char *dbg)
125{
126 if (!handles)
127 return -1;
128
129 handles->handle = nl80211_handle_alloc(cb);
130 if (handles->handle == NULL) {
131 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
132 "callbacks (%s)", dbg);
133 return -1;
134 }
135
136 if (genl_connect(handles->handle)) {
137 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
138 "netlink (%s)", dbg);
139 goto err;
140 }
141
a92dfde8
JB		 142 return 0;
143err:
144 nl80211_handle_destroy(handles->handle);
145 return -1;
146}
147
148
149static void nl_destroy_handles(struct nl80211_handles *handles)
150{
151 if (handles->handle == NULL)
152 return;
a92dfde8
JB		 153 nl80211_handle_destroy(handles->handle);
154 handles->handle = NULL;
155}
156
157
3f5285e8
JM		 158#ifndef IFF_LOWER_UP
159#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
160#endif
161#ifndef IFF_DORMANT
162#define IFF_DORMANT 0x20000 /* driver signals dormant */
163#endif
164
165#ifndef IF_OPER_DORMANT
166#define IF_OPER_DORMANT 5
167#endif
168#ifndef IF_OPER_UP
169#define IF_OPER_UP 6
170#endif
171
f2ed8023
JM		 172struct nl80211_global {
173 struct dl_list interfaces;
ff6a158b 174 int if_add_ifindex;
36d84860 175 struct netlink_data *netlink;
2a7b66f5 176 struct nl_cb *nl_cb;
276e2d67 177 struct nl80211_handles nl;
335d42b1 178 int nl80211_id;
c81eff1a 179 int ioctl_sock; /* socket for ioctl() use */
f2ed8023
JM		 180};
181
36d84860 182static void nl80211_global_deinit(void *priv);
dac12351 183static void wpa_driver_nl80211_deinit(void *priv);
36d84860 184
c5121837 185struct i802_bss {
a2e40bb6 186 struct wpa_driver_nl80211_data *drv;
c5121837 187 struct i802_bss *next;
b4fd6fab 188 int ifindex;
a2e40bb6 189 char ifname[IFNAMSIZ + 1];
e17a2477 190 char brname[IFNAMSIZ];
c5121837 191 unsigned int beacon_set:1;
e17a2477
JM		 192 unsigned int added_if_into_bridge:1;
193 unsigned int added_bridge:1;
221a59c9 194
e4fb2167
JB		 195 int freq;
196
221a59c9 197 struct nl80211_handles nl_preq;
c5121837 198};
3f5285e8
JM		 199
200struct wpa_driver_nl80211_data {
f2ed8023
JM		 201 struct nl80211_global *global;
202 struct dl_list list;
203 u8 addr[ETH_ALEN];
6859f1cb 204 char phyname[32];
3f5285e8 205 void *ctx;
3f5285e8 206 int ifindex;
7524cfb1 207 int if_removed;
a63063b4 208 int if_disabled;
7d9c3698 209 int ignore_if_down_event;
8401a6b0 210 struct rfkill_data *rfkill;
c2a04078
JM		 211 struct wpa_driver_capa capa;
212 int has_capability;
c2a04078 213
3f5285e8
JM		 214 int operstate;
215
3f5285e8
JM		 216 int scan_complete_events;
217
221a59c9 218 struct nl80211_handles nl_event;
1afc986d 219 struct nl_cb *nl_cb;
1c873584 220
e6b8efeb 221 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 222 u8 bssid[ETH_ALEN];
223 int associated;
fd05d64e
JM		 224 u8 ssid[32];
225 size_t ssid_len;
b1f625e0
EP		 226 enum nl80211_iftype nlmode;
227 enum nl80211_iftype ap_scan_as_station;
4832ecd7 228 unsigned int assoc_freq;
d2440ba0 229
0915d02c
JM		 230 int monitor_sock;
231 int monitor_ifidx;
3fd1cefb 232 int monitor_refcount;
7da3abe7 233
b3af99d2 234 unsigned int disabled_11b_rates:1;
55777702 235 unsigned int pending_remain_on_chan:1;
dac12351 236 unsigned int in_interface_list:1;
61cbe2ff 237 unsigned int device_ap_sme:1;
39718852 238 unsigned int poll_command_supported:1;
32ab4855 239 unsigned int data_tx_status:1;
55777702
JM		 240
241 u64 remain_on_chan_cookie;
58f6fbe0 242 u64 send_action_cookie;
c5121837 243
5582a5d1
JB		 244 unsigned int last_mgmt_freq;
245
3812464c
JM		 246 struct wpa_driver_scan_filter *filter_ssids;
247 size_t num_filter_ssids;
248
a2e40bb6
FF		 249 struct i802_bss first_bss;
250
d12dab4c 251 int eapol_tx_sock;
f10bfc9a 252
c5121837 253#ifdef HOSTAPD
c5121837 254 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 255
256 int default_if_indices[16];
257 int *if_indices;
258 int num_if_indices;
259
c5121837
JM		 260 int last_freq;
261 int last_freq_ht;
c5121837 262#endif /* HOSTAPD */
3f5285e8
JM		 263};
264
265
266static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
267 void *timeout_ctx);
b1f625e0
EP		 268static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
269 enum nl80211_iftype nlmode);
362f781e 270static int
7524cfb1 271wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 272static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 273 const u8 *addr, int cmd, u16 reason_code,
274 int local_state_change);
460456f8
JM		 275static void nl80211_remove_monitor_interface(
276 struct wpa_driver_nl80211_data *drv);
88df0ef7 277static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 278 unsigned int freq, unsigned int wait,
b106173a 279 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 280 int no_cck, int no_ack, int offchanok);
5582a5d1 281static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
216eede8
DS		 282#ifdef ANDROID
283static int android_pno_start(struct i802_bss *bss,
284 struct wpa_driver_scan_params *params);
285static int android_pno_stop(struct i802_bss *bss);
286#endif /* ANDROID */
0915d02c 287
072ad14c 288#ifdef HOSTAPD
2135f224
JM		 289static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
290static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 291static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 292static int wpa_driver_nl80211_if_remove(void *priv,
293 enum wpa_driver_if_type type,
294 const char *ifname);
37eb8da9 295#else /* HOSTAPD */
bd2df892
JM		 296static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
297{
298}
299
300static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
301{
302}
303
304static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 305{
306 return 0;
307}
072ad14c
JM		 308#endif /* HOSTAPD */
309
e3802622 310static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 311static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
312 int ifindex, int disabled);
504e905c 313
21bdbe38
JM		 314static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
315
3f5285e8 316
b1f625e0
EP		 317static int is_ap_interface(enum nl80211_iftype nlmode)
318{
319 return (nlmode == NL80211_IFTYPE_AP ||
320 nlmode == NL80211_IFTYPE_P2P_GO);
321}
322
323
324static int is_sta_interface(enum nl80211_iftype nlmode)
325{
326 return (nlmode == NL80211_IFTYPE_STATION ||
327 nlmode == NL80211_IFTYPE_P2P_CLIENT);
328}
329
330
b3af99d2
JM		 331static int is_p2p_interface(enum nl80211_iftype nlmode)
332{
333 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
334 nlmode == NL80211_IFTYPE_P2P_GO);
335}
336
337
f5a8d422
JM		 338struct nl80211_bss_info_arg {
339 struct wpa_driver_nl80211_data *drv;
340 struct wpa_scan_results *res;
341 unsigned int assoc_freq;
20f5a4c2 342 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 343};
344
345static int bss_info_handler(struct nl_msg *msg, void *arg);
346
347
6241fcb1
JM		 348/* nl80211 code */
349static int ack_handler(struct nl_msg *msg, void *arg)
350{
351 int *err = arg;
352 *err = 0;
353 return NL_STOP;
354}
355
356static int finish_handler(struct nl_msg *msg, void *arg)
357{
8e8df255
JM		 358 int *ret = arg;
359 *ret = 0;
6241fcb1
JM		 360 return NL_SKIP;
361}
362
363static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
364 void *arg)
365{
366 int *ret = arg;
367 *ret = err->error;
368 return NL_SKIP;
369}
370
5b7b85f6
JM		 371
372static int no_seq_check(struct nl_msg *msg, void *arg)
373{
374 return NL_OK;
375}
376
377
58f6fbe0
JM		 378static int send_and_recv(struct wpa_driver_nl80211_data *drv,
379 struct nl_handle *nl_handle, struct nl_msg *msg,
380 int (*valid_handler)(struct nl_msg *, void *),
381 void *valid_data)
6241fcb1
JM		 382{
383 struct nl_cb *cb;
384 int err = -ENOMEM;
385
2a7b66f5 386 cb = nl_cb_clone(drv->global->nl_cb);
6241fcb1
JM		 387 if (!cb)
388 goto out;
389
58f6fbe0 390 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 391 if (err < 0)
392 goto out;
393
394 err = 1;
395
396 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 397 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 398 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
399
400 if (valid_handler)
401 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
402 valid_handler, valid_data);
403
404 while (err > 0)
58f6fbe0 405 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 406 out:
407 nl_cb_put(cb);
408 nlmsg_free(msg);
409 return err;
410}
411
412
58f6fbe0
JM		 413static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
414 struct nl_msg *msg,
415 int (*valid_handler)(struct nl_msg *, void *),
416 void *valid_data)
417{
276e2d67 418 return send_and_recv(drv, drv->global->nl.handle, msg, valid_handler,
58f6fbe0
JM		 419 valid_data);
420}
421
422
97865538
JM		 423struct family_data {
424 const char *group;
425 int id;
426};
427
428
429static int family_handler(struct nl_msg *msg, void *arg)
430{
431 struct family_data *res = arg;
432 struct nlattr *tb[CTRL_ATTR_MAX + 1];
433 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
434 struct nlattr *mcgrp;
435 int i;
436
437 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
438 genlmsg_attrlen(gnlh, 0), NULL);
439 if (!tb[CTRL_ATTR_MCAST_GROUPS])
440 return NL_SKIP;
441
442 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
443 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
444 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
445 nla_len(mcgrp), NULL);
446 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
447 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
448 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
449 res->group,
450 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
451 continue;
452 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
453 break;
454 };
455
456 return NL_SKIP;
457}
458
459
460static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
461 const char *family, const char *group)
462{
463 struct nl_msg *msg;
464 int ret = -1;
465 struct family_data res = { group, -ENOENT };
466
467 msg = nlmsg_alloc();
468 if (!msg)
469 return -ENOMEM;
276e2d67
BG		 470 genlmsg_put(msg, 0, 0,
471 genl_ctrl_resolve(drv->global->nl.handle, "nlctrl"),
97865538
JM		 472 0, 0, CTRL_CMD_GETFAMILY, 0);
473 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
474
475 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
476 msg = NULL;
477 if (ret == 0)
478 ret = res.id;
479
480nla_put_failure:
481 nlmsg_free(msg);
482 return ret;
483}
484
485
9fb04070
JM		 486static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
487 struct nl_msg *msg, int flags, uint8_t cmd)
488{
335d42b1 489 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 490 0, flags, cmd, 0);
9fb04070
JM		 491}
492
493
3f5285e8
JM		 494static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
495{
a2e40bb6
FF		 496 struct i802_bss *bss = priv;
497 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 498 if (!drv->associated)
499 return -1;
500 os_memcpy(bssid, drv->bssid, ETH_ALEN);
501 return 0;
3f5285e8
JM		 502}
503
504
3f5285e8
JM		 505static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
506{
a2e40bb6
FF		 507 struct i802_bss *bss = priv;
508 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 509 if (!drv->associated)
510 return -1;
511 os_memcpy(ssid, drv->ssid, drv->ssid_len);
512 return drv->ssid_len;
3f5285e8
JM		 513}
514
515
7524cfb1 516static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 517 char *buf, size_t len, int del)
3f5285e8
JM		 518{
519 union wpa_event_data event;
520
521 os_memset(&event, 0, sizeof(event));
522 if (len > sizeof(event.interface_status.ifname))
523 len = sizeof(event.interface_status.ifname) - 1;
524 os_memcpy(event.interface_status.ifname, buf, len);
525 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
526 EVENT_INTERFACE_ADDED;
527
528 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
529 del ? "DEL" : "NEW",
530 event.interface_status.ifname,
531 del ? "removed" : "added");
532
a2e40bb6 533 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
7524cfb1
JM		 534 if (del)
535 drv->if_removed = 1;
536 else
537 drv->if_removed = 0;
538 }
539
08063178 540 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 541}
542
543
7524cfb1 544static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 545 u8 *buf, size_t len)
7524cfb1 546{
62d680c3 547 int attrlen, rta_len;
7524cfb1
JM		 548 struct rtattr *attr;
549
62d680c3
JM		 550 attrlen = len;
551 attr = (struct rtattr *) buf;
7524cfb1
JM		 552
553 rta_len = RTA_ALIGN(sizeof(struct rtattr));
554 while (RTA_OK(attr, attrlen)) {
555 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 556 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 557 == 0)
558 return 1;
559 else
560 break;
561 }
562 attr = RTA_NEXT(attr, attrlen);
563 }
564
565 return 0;
566}
567
568
569static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 570 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 571{
572 if (drv->ifindex == ifindex)
573 return 1;
574
62d680c3 575 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 576 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 577 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
578 "interface");
579 wpa_driver_nl80211_finish_drv_init(drv);
580 return 1;
581 }
582
583 return 0;
584}
585
586
36d84860
BG		 587static struct wpa_driver_nl80211_data *
588nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
589{
590 struct wpa_driver_nl80211_data *drv;
591 dl_list_for_each(drv, &global->interfaces,
592 struct wpa_driver_nl80211_data, list) {
593 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
594 have_ifidx(drv, idx))
595 return drv;
596 }
597 return NULL;
598}
599
600
62d680c3
JM		 601static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
602 struct ifinfomsg *ifi,
603 u8 *buf, size_t len)
3f5285e8 604{
36d84860
BG		 605 struct nl80211_global *global = ctx;
606 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 607 int attrlen, rta_len;
608 struct rtattr *attr;
97cfcf64 609 u32 brid = 0;
aef85ba2 610 char namebuf[IFNAMSIZ];
3f5285e8 611
36d84860
BG		 612 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
613 if (!drv) {
97cfcf64
B		 614 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
615 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 616 return;
617 }
618
619 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
620 "(%s%s%s%s)",
621 drv->operstate, ifi->ifi_flags,
622 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
623 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
624 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
625 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 626
627 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
JM		 628 if (if_indextoname(ifi->ifi_index, namebuf) &&
629 linux_iface_up(drv->global->ioctl_sock,
630 drv->first_bss.ifname) > 0) {
631 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
632 "event since interface %s is up", namebuf);
633 return;
634 }
a63063b4 635 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 636 if (drv->ignore_if_down_event) {
637 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
638 "event generated by mode change");
639 drv->ignore_if_down_event = 0;
640 } else {
641 drv->if_disabled = 1;
642 wpa_supplicant_event(drv->ctx,
643 EVENT_INTERFACE_DISABLED, NULL);
644 }
a63063b4
JM		 645 }
646
647 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 648 if (if_indextoname(ifi->ifi_index, namebuf) &&
649 linux_iface_up(drv->global->ioctl_sock,
650 drv->first_bss.ifname) == 0) {
651 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
652 "event since interface %s is down",
653 namebuf);
654 } else {
655 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
656 drv->if_disabled = 0;
657 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
658 NULL);
659 }
a63063b4
JM		 660 }
661
3f5285e8
JM		 662 /*
663 * Some drivers send the association event before the operup event--in
664 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
665 * fails. This will hit us when wpa_supplicant does not need to do
666 * IEEE 802.1X authentication
667 */
668 if (drv->operstate == 1 &&
669 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
670 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 671 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 672 -1, IF_OPER_UP);
3f5285e8 673
62d680c3
JM		 674 attrlen = len;
675 attr = (struct rtattr *) buf;
3f5285e8
JM		 676 rta_len = RTA_ALIGN(sizeof(struct rtattr));
677 while (RTA_OK(attr, attrlen)) {
d8816397 678 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 679 wpa_driver_nl80211_event_link(
08063178 680 drv,
7524cfb1
JM		 681 ((char *) attr) + rta_len,
682 attr->rta_len - rta_len, 0);
97cfcf64
B		 683 } else if (attr->rta_type == IFLA_MASTER)
684 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 685 attr = RTA_NEXT(attr, attrlen);
686 }
97cfcf64
B		 687
688 if (ifi->ifi_family == AF_BRIDGE && brid) {
689 /* device has been added to bridge */
97cfcf64
B		 690 if_indextoname(brid, namebuf);
691 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
692 brid, namebuf);
693 add_ifidx(drv, brid);
694 }
3f5285e8
JM		 695}
696
697
62d680c3
JM		 698static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
699 struct ifinfomsg *ifi,
700 u8 *buf, size_t len)
3f5285e8 701{
36d84860
BG		 702 struct nl80211_global *global = ctx;
703 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 704 int attrlen, rta_len;
705 struct rtattr *attr;
97cfcf64 706 u32 brid = 0;
3f5285e8 707
36d84860
BG		 708 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
709 if (!drv) {
710 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
711 "foreign ifindex %d", ifi->ifi_index);
712 return;
713 }
714
62d680c3
JM		 715 attrlen = len;
716 attr = (struct rtattr *) buf;
3f5285e8
JM		 717
718 rta_len = RTA_ALIGN(sizeof(struct rtattr));
719 while (RTA_OK(attr, attrlen)) {
720 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 721 wpa_driver_nl80211_event_link(
08063178 722 drv,
7524cfb1
JM		 723 ((char *) attr) + rta_len,
724 attr->rta_len - rta_len, 1);
97cfcf64
B		 725 } else if (attr->rta_type == IFLA_MASTER)
726 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 727 attr = RTA_NEXT(attr, attrlen);
728 }
97cfcf64
B		 729
730 if (ifi->ifi_family == AF_BRIDGE && brid) {
731 /* device has been removed from bridge */
732 char namebuf[IFNAMSIZ];
733 if_indextoname(brid, namebuf);
734 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
735 "%s", brid, namebuf);
736 del_ifidx(drv, brid);
737 }
3f5285e8
JM		 738}
739
740
c2a04078
JM		 741static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
742 const u8 *frame, size_t len)
743{
744 const struct ieee80211_mgmt *mgmt;
745 union wpa_event_data event;
746
747 mgmt = (const struct ieee80211_mgmt *) frame;
748 if (len < 24 + sizeof(mgmt->u.auth)) {
749 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
750 "frame");
751 return;
752 }
753
e6b8efeb 754 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 755 os_memset(&event, 0, sizeof(event));
756 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
757 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
758 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
759 if (len > 24 + sizeof(mgmt->u.auth)) {
760 event.auth.ies = mgmt->u.auth.variable;
761 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
762 }
763
764 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
765}
766
767
f5a8d422
JM		 768static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
769{
770 struct nl_msg *msg;
771 int ret;
772 struct nl80211_bss_info_arg arg;
773
774 os_memset(&arg, 0, sizeof(arg));
775 msg = nlmsg_alloc();
776 if (!msg)
777 goto nla_put_failure;
778
9fb04070 779 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 780 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
781
782 arg.drv = drv;
783 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
784 msg = NULL;
785 if (ret == 0) {
786 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
787 "associated BSS from scan results: %u MHz",
788 arg.assoc_freq);
789 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
790 }
791 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
792 "(%s)", ret, strerror(-ret));
793nla_put_failure:
794 nlmsg_free(msg);
795 return drv->assoc_freq;
796}
797
798
c2a04078
JM		 799static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
800 const u8 *frame, size_t len)
801{
802 const struct ieee80211_mgmt *mgmt;
803 union wpa_event_data event;
804 u16 status;
805
806 mgmt = (const struct ieee80211_mgmt *) frame;
807 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
808 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
809 "frame");
810 return;
811 }
812
813 status = le_to_host16(mgmt->u.assoc_resp.status_code);
814 if (status != WLAN_STATUS_SUCCESS) {
efa46078 815 os_memset(&event, 0, sizeof(event));
59ddf221 816 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 817 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
818 event.assoc_reject.resp_ies =
819 (u8 *) mgmt->u.assoc_resp.variable;
820 event.assoc_reject.resp_ies_len =
821 len - 24 - sizeof(mgmt->u.assoc_resp);
822 }
823 event.assoc_reject.status_code = status;
824
825 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 826 return;
827 }
828
829 drv->associated = 1;
830 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
831
832 os_memset(&event, 0, sizeof(event));
833 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
834 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
835 event.assoc_info.resp_ies_len =
efa46078 836 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 837 }
838
4832ecd7
JM		 839 event.assoc_info.freq = drv->assoc_freq;
840
c2a04078
JM		 841 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
842}
843
c1bb3e0a 844
da72a1c1
ZY		 845static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
846 enum nl80211_commands cmd, struct nlattr *status,
847 struct nlattr *addr, struct nlattr *req_ie,
848 struct nlattr *resp_ie)
849{
850 union wpa_event_data event;
851
7da2c527
JM		 852 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
853 /*
854 * Avoid reporting two association events that would confuse
855 * the core code.
856 */
857 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
858 "when using userspace SME", cmd);
859 return;
860 }
861
da72a1c1
ZY		 862 os_memset(&event, 0, sizeof(event));
863 if (cmd == NL80211_CMD_CONNECT &&
864 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 865 if (addr)
866 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 867 if (resp_ie) {
868 event.assoc_reject.resp_ies = nla_data(resp_ie);
869 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
870 }
871 event.assoc_reject.status_code = nla_get_u16(status);
872 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
873 return;
874 }
875
876 drv->associated = 1;
877 if (addr)
878 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
879
880 if (req_ie) {
881 event.assoc_info.req_ies = nla_data(req_ie);
882 event.assoc_info.req_ies_len = nla_len(req_ie);
883 }
884 if (resp_ie) {
885 event.assoc_info.resp_ies = nla_data(resp_ie);
886 event.assoc_info.resp_ies_len = nla_len(resp_ie);
887 }
888
f5a8d422
JM		 889 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
890
da72a1c1
ZY		 891 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
892}
c2a04078 893
c1bb3e0a 894
20f5a4c2
JM		 895static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
896 struct nlattr *reason, struct nlattr *addr)
897{
898 union wpa_event_data data;
899
900 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
901 /*
902 * Avoid reporting two disassociation events that could
903 * confuse the core code.
904 */
905 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
906 "event when using userspace SME");
907 return;
908 }
909
910 drv->associated = 0;
911 os_memset(&data, 0, sizeof(data));
912 if (reason)
913 data.disassoc_info.reason_code = nla_get_u16(reason);
914 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
915}
916
917
da1fb17c
JM		 918static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
919 enum nl80211_commands cmd, struct nlattr *addr)
920{
921 union wpa_event_data event;
922 enum wpa_event_type ev;
923
924 if (nla_len(addr) != ETH_ALEN)
925 return;
926
927 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
928 cmd, MAC2STR((u8 *) nla_data(addr)));
929
930 if (cmd == NL80211_CMD_AUTHENTICATE)
931 ev = EVENT_AUTH_TIMED_OUT;
932 else if (cmd == NL80211_CMD_ASSOCIATE)
933 ev = EVENT_ASSOC_TIMED_OUT;
934 else
935 return;
936
937 os_memset(&event, 0, sizeof(event));
938 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
939 wpa_supplicant_event(drv->ctx, ev, &event);
940}
941
942
5582a5d1
JB		 943static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
944 struct nlattr *freq, const u8 *frame, size_t len)
58f6fbe0
JM		 945{
946 const struct ieee80211_mgmt *mgmt;
947 union wpa_event_data event;
948 u16 fc, stype;
949
950 mgmt = (const struct ieee80211_mgmt *) frame;
951 if (len < 24) {
952 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
953 return;
954 }
955
956 fc = le_to_host16(mgmt->frame_control);
957 stype = WLAN_FC_GET_STYPE(fc);
958
959 os_memset(&event, 0, sizeof(event));
5582a5d1 960 if (freq) {
58f6fbe0 961 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 962 drv->last_mgmt_freq = event.rx_action.freq;
963 }
964 if (stype == WLAN_FC_STYPE_ACTION) {
965 event.rx_action.da = mgmt->da;
966 event.rx_action.sa = mgmt->sa;
967 event.rx_action.bssid = mgmt->bssid;
968 event.rx_action.category = mgmt->u.action.category;
969 event.rx_action.data = &mgmt->u.action.category + 1;
970 event.rx_action.len = frame + len - event.rx_action.data;
971 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
972 } else {
973 event.rx_mgmt.frame = frame;
974 event.rx_mgmt.frame_len = len;
975 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
976 }
58f6fbe0
JM		 977}
978
979
980static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
981 struct nlattr *cookie, const u8 *frame,
982 size_t len, struct nlattr *ack)
983{
984 union wpa_event_data event;
985 const struct ieee80211_hdr *hdr;
986 u16 fc;
987 u64 cookie_val;
988
989 if (!cookie)
990 return;
991
992 cookie_val = nla_get_u64(cookie);
4796272f
JM		 993 wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s "
994 "(ack=%d)",
58f6fbe0
JM		 995 (long long unsigned int) cookie_val,
996 cookie_val == drv->send_action_cookie ?
4796272f 997 " (match)" : " (unknown)", ack != NULL);
58f6fbe0
JM		 998 if (cookie_val != drv->send_action_cookie)
999 return;
1000
1001 hdr = (const struct ieee80211_hdr *) frame;
1002 fc = le_to_host16(hdr->frame_control);
1003
1004 os_memset(&event, 0, sizeof(event));
1005 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1006 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1007 event.tx_status.dst = hdr->addr1;
1008 event.tx_status.data = frame;
1009 event.tx_status.data_len = len;
1010 event.tx_status.ack = ack != NULL;
1011 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1012}
1013
1014
0544b242
JM		 1015static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1016 enum wpa_event_type type,
1017 const u8 *frame, size_t len)
1018{
1019 const struct ieee80211_mgmt *mgmt;
1020 union wpa_event_data event;
1021 const u8 *bssid = NULL;
1022 u16 reason_code = 0;
1023
cb30b297
PS		 1024 mgmt = (const struct ieee80211_mgmt *) frame;
1025 if (len >= 24) {
1026 bssid = mgmt->bssid;
1027
1028 if (drv->associated != 0 &&
1029 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1030 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1031 /*
1032 * We have presumably received this deauth as a
1033 * response to a clear_state_mismatch() outgoing
1034 * deauth. Don't let it take us offline!
1035 */
1036 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1037 "from Unknown BSSID " MACSTR " -- ignoring",
1038 MAC2STR(bssid));
1039 return;
1040 }
1041 }
1042
0544b242
JM		 1043 drv->associated = 0;
1044 os_memset(&event, 0, sizeof(event));
1045
0544b242
JM		 1046 /* Note: Same offset for Reason Code in both frame subtypes */
1047 if (len >= 24 + sizeof(mgmt->u.deauth))
1048 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1049
1050 if (type == EVENT_DISASSOC) {
1051 event.disassoc_info.addr = bssid;
1052 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1053 if (frame + len > mgmt->u.disassoc.variable) {
1054 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1055 event.disassoc_info.ie_len = frame + len -
1056 mgmt->u.disassoc.variable;
1057 }
0544b242
JM		 1058 } else {
1059 event.deauth_info.addr = bssid;
1060 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1061 if (frame + len > mgmt->u.deauth.variable) {
1062 event.deauth_info.ie = mgmt->u.deauth.variable;
1063 event.deauth_info.ie_len = frame + len -
1064 mgmt->u.deauth.variable;
1065 }
0544b242
JM		 1066 }
1067
1068 wpa_supplicant_event(drv->ctx, type, &event);
1069}
1070
1071
7d878ca7
JM		 1072static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1073 enum wpa_event_type type,
1074 const u8 *frame, size_t len)
1075{
1076 const struct ieee80211_mgmt *mgmt;
1077 union wpa_event_data event;
1078 u16 reason_code = 0;
1079
1080 if (len < 24)
1081 return;
1082
1083 mgmt = (const struct ieee80211_mgmt *) frame;
1084
1085 os_memset(&event, 0, sizeof(event));
1086 /* Note: Same offset for Reason Code in both frame subtypes */
1087 if (len >= 24 + sizeof(mgmt->u.deauth))
1088 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1089
1090 if (type == EVENT_UNPROT_DISASSOC) {
1091 event.unprot_disassoc.sa = mgmt->sa;
1092 event.unprot_disassoc.da = mgmt->da;
1093 event.unprot_disassoc.reason_code = reason_code;
1094 } else {
1095 event.unprot_deauth.sa = mgmt->sa;
1096 event.unprot_deauth.da = mgmt->da;
1097 event.unprot_deauth.reason_code = reason_code;
1098 }
1099
1100 wpa_supplicant_event(drv->ctx, type, &event);
1101}
1102
1103
c2a04078 1104static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 1105 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1106 struct nlattr *addr, struct nlattr *timed_out,
1107 struct nlattr *freq, struct nlattr *ack,
1108 struct nlattr *cookie)
c2a04078 1109{
da1fb17c
JM		 1110 if (timed_out && addr) {
1111 mlme_timeout_event(drv, cmd, addr);
1112 return;
1113 }
1114
c2a04078
JM		 1115 if (frame == NULL) {
1116 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1117 "data", cmd);
1118 return;
1119 }
1120
1121 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1122 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1123 nla_data(frame), nla_len(frame));
1124
1125 switch (cmd) {
1126 case NL80211_CMD_AUTHENTICATE:
1127 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1128 break;
1129 case NL80211_CMD_ASSOCIATE:
1130 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1131 break;
1132 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1133 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1134 nla_data(frame), nla_len(frame));
c2a04078
JM		 1135 break;
1136 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1137 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1138 nla_data(frame), nla_len(frame));
c2a04078 1139 break;
bd94971e 1140 case NL80211_CMD_FRAME:
5582a5d1 1141 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
58f6fbe0 1142 break;
bd94971e 1143 case NL80211_CMD_FRAME_TX_STATUS:
58f6fbe0
JM		 1144 mlme_event_action_tx_status(drv, cookie, nla_data(frame),
1145 nla_len(frame), ack);
1146 break;
7d878ca7
JM		 1147 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1148 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1149 nla_data(frame), nla_len(frame));
1150 break;
1151 case NL80211_CMD_UNPROT_DISASSOCIATE:
1152 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1153 nla_data(frame), nla_len(frame));
1154 break;
c2a04078
JM		 1155 default:
1156 break;
1157 }
1158}
1159
1160
35583f3f
JM		 1161static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1162 struct nlattr *tb[])
1163{
1164 union wpa_event_data data;
1165
1166 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1167 os_memset(&data, 0, sizeof(data));
1168 if (tb[NL80211_ATTR_MAC]) {
1169 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1170 nla_data(tb[NL80211_ATTR_MAC]),
1171 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1172 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1173 }
1174 if (tb[NL80211_ATTR_KEY_SEQ]) {
1175 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1176 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1177 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1178 }
1179 if (tb[NL80211_ATTR_KEY_TYPE]) {
1180 enum nl80211_key_type key_type =
1181 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1182 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1183 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1184 data.michael_mic_failure.unicast = 1;
1185 } else
1186 data.michael_mic_failure.unicast = 1;
1187
1188 if (tb[NL80211_ATTR_KEY_IDX]) {
1189 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1190 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1191 }
1192
1193 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1194}
1195
1196
5cc4d64b
JM		 1197static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1198 struct nlattr *tb[])
1199{
1200 if (tb[NL80211_ATTR_MAC] == NULL) {
1201 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1202 "event");
1203 return;
1204 }
1205 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1206 drv->associated = 1;
1207 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1208 MAC2STR(drv->bssid));
1209
1210 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1211}
1212
1213
55777702
JM		 1214static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1215 int cancel_event, struct nlattr *tb[])
1216{
1217 unsigned int freq, chan_type, duration;
1218 union wpa_event_data data;
1219 u64 cookie;
1220
1221 if (tb[NL80211_ATTR_WIPHY_FREQ])
1222 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1223 else
1224 freq = 0;
1225
1226 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1227 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1228 else
1229 chan_type = 0;
1230
1231 if (tb[NL80211_ATTR_DURATION])
1232 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1233 else
1234 duration = 0;
1235
1236 if (tb[NL80211_ATTR_COOKIE])
1237 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1238 else
1239 cookie = 0;
1240
1241 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1242 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1243 cancel_event, freq, chan_type, duration,
1244 (long long unsigned int) cookie,
1245 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1246
1247 if (cookie != drv->remain_on_chan_cookie)
1248 return; /* not for us */
1249
531f0331
JB		 1250 if (cancel_event)
1251 drv->pending_remain_on_chan = 0;
55777702
JM		 1252
1253 os_memset(&data, 0, sizeof(data));
1254 data.remain_on_channel.freq = freq;
1255 data.remain_on_channel.duration = duration;
1256 wpa_supplicant_event(drv->ctx, cancel_event ?
1257 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1258 EVENT_REMAIN_ON_CHANNEL, &data);
1259}
1260
1261
8d923a4a
JM		 1262static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1263 struct nlattr *tb[])
1264{
1265 union wpa_event_data event;
1266 struct nlattr *nl;
1267 int rem;
1268 struct scan_info *info;
1269#define MAX_REPORT_FREQS 50
1270 int freqs[MAX_REPORT_FREQS];
1271 int num_freqs = 0;
1272
1273 os_memset(&event, 0, sizeof(event));
1274 info = &event.scan_info;
1275 info->aborted = aborted;
1276
1277 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1278 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1279 struct wpa_driver_scan_ssid *s =
1280 &info->ssids[info->num_ssids];
1281 s->ssid = nla_data(nl);
1282 s->ssid_len = nla_len(nl);
1283 info->num_ssids++;
1284 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1285 break;
1286 }
1287 }
1288 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1289 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1290 {
1291 freqs[num_freqs] = nla_get_u32(nl);
1292 num_freqs++;
1293 if (num_freqs == MAX_REPORT_FREQS - 1)
1294 break;
1295 }
1296 info->freqs = freqs;
1297 info->num_freqs = num_freqs;
1298 }
1299 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1300}
1301
1302
60a972a6
JM		 1303static int get_link_signal(struct nl_msg *msg, void *arg)
1304{
1305 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1306 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1307 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1308 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1309 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1310 };
7ee35bf3
PS		 1311 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1312 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1313 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1314 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1315 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1316 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1317 };
1c5c7273 1318 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1319
1320 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1321 genlmsg_attrlen(gnlh, 0), NULL);
1322 if (!tb[NL80211_ATTR_STA_INFO] ||
1323 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1324 tb[NL80211_ATTR_STA_INFO], policy))
1325 return NL_SKIP;
1326 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1327 return NL_SKIP;
1328
7ee35bf3
PS		 1329 sig_change->current_signal =
1330 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1331
1332 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1333 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1334 sinfo[NL80211_STA_INFO_TX_BITRATE],
1335 rate_policy)) {
1336 sig_change->current_txrate = 0;
1337 } else {
1338 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1339 sig_change->current_txrate =
1340 nla_get_u16(rinfo[
1341 NL80211_RATE_INFO_BITRATE]) * 100;
1342 }
1343 }
1344 }
1345
60a972a6
JM		 1346 return NL_SKIP;
1347}
1348
1349
1350static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1351 struct wpa_signal_info *sig)
60a972a6
JM		 1352{
1353 struct nl_msg *msg;
1354
7ee35bf3
PS		 1355 sig->current_signal = -9999;
1356 sig->current_txrate = 0;
60a972a6
JM		 1357
1358 msg = nlmsg_alloc();
1359 if (!msg)
1360 return -ENOMEM;
1361
9fb04070 1362 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1363
1364 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1365 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1366
1367 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1368 nla_put_failure:
1369 return -ENOBUFS;
1370}
1371
1372
7ee35bf3
PS		 1373static int get_link_noise(struct nl_msg *msg, void *arg)
1374{
1375 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1376 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1377 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1378 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1379 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1380 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1381 };
1c5c7273 1382 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1383
1384 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1385 genlmsg_attrlen(gnlh, 0), NULL);
1386
1387 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1388 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1389 return NL_SKIP;
1390 }
1391
1392 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1393 tb[NL80211_ATTR_SURVEY_INFO],
1394 survey_policy)) {
1395 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1396 "attributes!");
1397 return NL_SKIP;
1398 }
1399
1400 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1401 return NL_SKIP;
1402
1403 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1404 sig_change->frequency)
1405 return NL_SKIP;
1406
1407 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1408 return NL_SKIP;
1409
1410 sig_change->current_noise =
1411 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1412
1413 return NL_SKIP;
1414}
1415
1416
1417static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1418 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1419{
1420 struct nl_msg *msg;
1421
1422 sig_change->current_noise = 9999;
1423 sig_change->frequency = drv->assoc_freq;
1424
1425 msg = nlmsg_alloc();
1426 if (!msg)
1427 return -ENOMEM;
1428
9fb04070 1429 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1430
1431 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1432
1433 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1434 nla_put_failure:
1435 return -ENOBUFS;
1436}
1437
1438
577db0ae
GM		 1439static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1440{
1441 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1442 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1443 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1444 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1445 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1446 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1447 };
1448 struct wpa_scan_results *scan_results = arg;
1449 struct wpa_scan_res *scan_res;
1450 size_t i;
1451
1452 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1453 genlmsg_attrlen(gnlh, 0), NULL);
1454
1455 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1456 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1457 return NL_SKIP;
1458 }
1459
1460 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1461 tb[NL80211_ATTR_SURVEY_INFO],
1462 survey_policy)) {
1463 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1464 "attributes");
1465 return NL_SKIP;
1466 }
1467
1468 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1469 return NL_SKIP;
1470
1471 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1472 return NL_SKIP;
1473
1474 for (i = 0; i < scan_results->num; ++i) {
1475 scan_res = scan_results->res[i];
1476 if (!scan_res)
1477 continue;
1478 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1479 scan_res->freq)
1480 continue;
1481 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1482 continue;
1483 scan_res->noise = (s8)
1484 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1485 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1486 }
1487
1488 return NL_SKIP;
1489}
1490
1491
1492static int nl80211_get_noise_for_scan_results(
1493 struct wpa_driver_nl80211_data *drv,
1494 struct wpa_scan_results *scan_res)
1495{
1496 struct nl_msg *msg;
1497
1498 msg = nlmsg_alloc();
1499 if (!msg)
1500 return -ENOMEM;
1501
1502 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1503
1504 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1505
1506 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1507 scan_res);
1508 nla_put_failure:
1509 return -ENOBUFS;
1510}
1511
1512
93910401
JM		 1513static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1514 struct nlattr *tb[])
1515{
1516 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1517 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1518 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1519 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1520 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1521 };
1522 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1523 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1524 union wpa_event_data ed;
1c5c7273 1525 struct wpa_signal_info sig;
7ee35bf3 1526 int res;
93910401
JM		 1527
1528 if (tb[NL80211_ATTR_CQM] == NULL ||
1529 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1530 cqm_policy)) {
1531 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1532 return;
1533 }
1534
0d7e5a3a
JB		 1535 os_memset(&ed, 0, sizeof(ed));
1536
1537 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1538 if (!tb[NL80211_ATTR_MAC])
1539 return;
1540 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1541 ETH_ALEN);
1542 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1543 return;
1544 }
1545
93910401
JM		 1546 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1547 return;
1548 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1549
93910401
JM		 1550 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1551 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1552 "event: RSSI high");
b625473c 1553 ed.signal_change.above_threshold = 1;
93910401
JM		 1554 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1555 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1556 "event: RSSI low");
b625473c
JM		 1557 ed.signal_change.above_threshold = 0;
1558 } else
1559 return;
1560
60a972a6
JM		 1561 res = nl80211_get_link_signal(drv, &sig);
1562 if (res == 0) {
7ee35bf3
PS		 1563 ed.signal_change.current_signal = sig.current_signal;
1564 ed.signal_change.current_txrate = sig.current_txrate;
1565 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1566 sig.current_signal, sig.current_txrate);
1567 }
1568
1569 res = nl80211_get_link_noise(drv, &sig);
1570 if (res == 0) {
1571 ed.signal_change.current_noise = sig.current_noise;
1572 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1573 sig.current_noise);
60a972a6
JM		 1574 }
1575
b625473c 1576 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1577}
1578
1579
18d2ba08
JM		 1580static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1581 struct nlattr **tb)
1582{
1583 u8 *addr;
1584 union wpa_event_data data;
1585
1586 if (tb[NL80211_ATTR_MAC] == NULL)
1587 return;
1588 addr = nla_data(tb[NL80211_ATTR_MAC]);
1589 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1590
61cbe2ff 1591 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1592 u8 *ies = NULL;
1593 size_t ies_len = 0;
1594 if (tb[NL80211_ATTR_IE]) {
1595 ies = nla_data(tb[NL80211_ATTR_IE]);
1596 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1597 }
1598 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1599 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1600 return;
1601 }
1602
18d2ba08
JM		 1603 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1604 return;
1605
1606 os_memset(&data, 0, sizeof(data));
1607 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1608 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1609}
1610
1611
ef985058
JM		 1612static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1613 struct nlattr **tb)
1614{
1615 u8 *addr;
1616 union wpa_event_data data;
1617
1618 if (tb[NL80211_ATTR_MAC] == NULL)
1619 return;
1620 addr = nla_data(tb[NL80211_ATTR_MAC]);
1621 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1622 MAC2STR(addr));
5f310a9e 1623
61cbe2ff 1624 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1625 drv_event_disassoc(drv->ctx, addr);
1626 return;
1627 }
1628
ef985058
JM		 1629 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1630 return;
1631
1632 os_memset(&data, 0, sizeof(data));
1633 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1634 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1635}
1636
1637
b14a210c
JB		 1638static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1639 struct nlattr **tb)
1640{
1641 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1642 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1643 [NL80211_REKEY_DATA_KEK] = {
1644 .minlen = NL80211_KEK_LEN,
1645 .maxlen = NL80211_KEK_LEN,
1646 },
1647 [NL80211_REKEY_DATA_KCK] = {
1648 .minlen = NL80211_KCK_LEN,
1649 .maxlen = NL80211_KCK_LEN,
1650 },
1651 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1652 .minlen = NL80211_REPLAY_CTR_LEN,
1653 .maxlen = NL80211_REPLAY_CTR_LEN,
1654 },
1655 };
1656 union wpa_event_data data;
1657
1658 if (!tb[NL80211_ATTR_MAC])
1659 return;
1660 if (!tb[NL80211_ATTR_REKEY_DATA])
1661 return;
1662 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
1663 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
1664 return;
1665 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
1666 return;
1667
1668 os_memset(&data, 0, sizeof(data));
1669 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
1670 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
1671 MAC2STR(data.driver_gtk_rekey.bssid));
1672 data.driver_gtk_rekey.replay_ctr =
1673 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
1674 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
1675 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
1676 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
1677}
1678
1679
c36d5242
JM		 1680static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
1681 struct nlattr **tb)
1682{
1683 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
1684 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
1685 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
1686 [NL80211_PMKSA_CANDIDATE_BSSID] = {
1687 .minlen = ETH_ALEN,
1688 .maxlen = ETH_ALEN,
1689 },
1690 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
1691 };
1692 union wpa_event_data data;
1693
1694 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
1695 return;
1696 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
1697 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
1698 return;
1699 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
1700 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
1701 return;
1702
1703 os_memset(&data, 0, sizeof(data));
1704 os_memcpy(data.pmkid_candidate.bssid,
1705 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
1706 data.pmkid_candidate.index =
1707 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
1708 data.pmkid_candidate.preauth =
1709 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
1710 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
1711}
1712
1713
39718852
JB		 1714static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
1715 struct nlattr **tb)
1716{
1717 union wpa_event_data data;
1718
1719 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
1720 return;
1721
1722 os_memset(&data, 0, sizeof(data));
1723 os_memcpy(data.client_poll.addr,
1724 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1725
1726 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
1727}
1728
1729
97865538
JM		 1730static int process_event(struct nl_msg *msg, void *arg)
1731{
1732 struct wpa_driver_nl80211_data *drv = arg;
1733 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1734 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1735
1736 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1737 genlmsg_attrlen(gnlh, 0), NULL);
1738
1739 if (tb[NL80211_ATTR_IFINDEX]) {
1740 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
97cfcf64 1741 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
97865538
JM		 1742 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
1743 " for foreign interface (ifindex %d)",
1744 gnlh->cmd, ifindex);
1745 return NL_SKIP;
1746 }
1747 }
1748
b1f625e0 1749 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
ad1e68e6
JM		 1750 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
1751 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 1752 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 1753 drv->ap_scan_as_station);
1754 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 1755 }
1756
97865538 1757 switch (gnlh->cmd) {
d942a79e
JM		 1758 case NL80211_CMD_TRIGGER_SCAN:
1759 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
1760 break;
d21c63b9
LC		 1761 case NL80211_CMD_START_SCHED_SCAN:
1762 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
1763 break;
1764 case NL80211_CMD_SCHED_SCAN_STOPPED:
1765 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
1766 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
1767 break;
97865538
JM		 1768 case NL80211_CMD_NEW_SCAN_RESULTS:
1769 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
1770 drv->scan_complete_events = 1;
1771 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1772 drv->ctx);
8d923a4a 1773 send_scan_event(drv, 0, tb);
97865538 1774 break;
d21c63b9
LC		 1775 case NL80211_CMD_SCHED_SCAN_RESULTS:
1776 wpa_printf(MSG_DEBUG,
1777 "nl80211: New sched scan results available");
1778 send_scan_event(drv, 0, tb);
1779 break;
97865538
JM		 1780 case NL80211_CMD_SCAN_ABORTED:
1781 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
1782 /*
1783 * Need to indicate that scan results are available in order
1784 * not to make wpa_supplicant stop its scanning.
1785 */
1786 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1787 drv->ctx);
8d923a4a 1788 send_scan_event(drv, 1, tb);
97865538 1789 break;
c2a04078
JM		 1790 case NL80211_CMD_AUTHENTICATE:
1791 case NL80211_CMD_ASSOCIATE:
1792 case NL80211_CMD_DEAUTHENTICATE:
1793 case NL80211_CMD_DISASSOCIATE:
bd94971e
JB		 1794 case NL80211_CMD_FRAME:
1795 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 1796 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1797 case NL80211_CMD_UNPROT_DISASSOCIATE:
da1fb17c 1798 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 1799 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
1800 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
1801 tb[NL80211_ATTR_COOKIE]);
c2a04078 1802 break;
da72a1c1
ZY		 1803 case NL80211_CMD_CONNECT:
1804 case NL80211_CMD_ROAM:
1805 mlme_event_connect(drv, gnlh->cmd,
1806 tb[NL80211_ATTR_STATUS_CODE],
1807 tb[NL80211_ATTR_MAC],
1808 tb[NL80211_ATTR_REQ_IE],
1809 tb[NL80211_ATTR_RESP_IE]);
1810 break;
1811 case NL80211_CMD_DISCONNECT:
20f5a4c2
JM		 1812 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
1813 tb[NL80211_ATTR_MAC]);
da72a1c1 1814 break;
35583f3f
JM		 1815 case NL80211_CMD_MICHAEL_MIC_FAILURE:
1816 mlme_event_michael_mic_failure(drv, tb);
1817 break;
5cc4d64b
JM		 1818 case NL80211_CMD_JOIN_IBSS:
1819 mlme_event_join_ibss(drv, tb);
1820 break;
55777702
JM		 1821 case NL80211_CMD_REMAIN_ON_CHANNEL:
1822 mlme_event_remain_on_channel(drv, 0, tb);
1823 break;
1824 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
1825 mlme_event_remain_on_channel(drv, 1, tb);
1826 break;
93910401
JM		 1827 case NL80211_CMD_NOTIFY_CQM:
1828 nl80211_cqm_event(drv, tb);
1829 break;
33c5deb8
JM		 1830 case NL80211_CMD_REG_CHANGE:
1831 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
1832 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1833 NULL);
1834 break;
1835 case NL80211_CMD_REG_BEACON_HINT:
1836 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
1837 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1838 NULL);
1839 break;
18d2ba08
JM		 1840 case NL80211_CMD_NEW_STATION:
1841 nl80211_new_station_event(drv, tb);
1842 break;
ef985058
JM		 1843 case NL80211_CMD_DEL_STATION:
1844 nl80211_del_station_event(drv, tb);
1845 break;
b14a210c
JB		 1846 case NL80211_CMD_SET_REKEY_OFFLOAD:
1847 nl80211_rekey_offload_event(drv, tb);
1848 break;
c36d5242
JM		 1849 case NL80211_CMD_PMKSA_CANDIDATE:
1850 nl80211_pmksa_candidate_event(drv, tb);
1851 break;
39718852
JB		 1852 case NL80211_CMD_PROBE_CLIENT:
1853 nl80211_client_probe_event(drv, tb);
1854 break;
97865538 1855 default:
c2a04078
JM		 1856 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
1857 "(cmd=%d)", gnlh->cmd);
97865538
JM		 1858 break;
1859 }
1860
1861 return NL_SKIP;
1862}
1863
1864
1865static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 1866 void *handle)
97865538 1867{
97865538
JM		 1868 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1869
1870 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
1871
1afc986d 1872 nl_recvmsgs(handle, drv->nl_cb);
97865538
JM		 1873}
1874
1875
6d158490
LR		 1876/**
1877 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1878 * @priv: driver_nl80211 private data
1879 * @alpha2_arg: country to which to switch to
1880 * Returns: 0 on success, -1 on failure
1881 *
1882 * This asks nl80211 to set the regulatory domain for given
1883 * country ISO / IEC alpha2.
1884 */
1885static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1886{
a2e40bb6
FF		 1887 struct i802_bss *bss = priv;
1888 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 1889 char alpha2[3];
1890 struct nl_msg *msg;
1891
1892 msg = nlmsg_alloc();
1893 if (!msg)
e785c2ba 1894 return -ENOMEM;
6d158490
LR		 1895
1896 alpha2[0] = alpha2_arg[0];
1897 alpha2[1] = alpha2_arg[1];
1898 alpha2[2] = '\0';
1899
9fb04070 1900 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 1901
1902 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1903 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1904 return -EINVAL;
1905 return 0;
1906nla_put_failure:
1907 return -EINVAL;
1908}
1909
1910
80bc75f1 1911struct wiphy_info_data {
e8b5e24e
JB		 1912 struct wpa_driver_capa *capa;
1913
1914 unsigned int error:1;
61cbe2ff 1915 unsigned int device_ap_sme:1;
39718852 1916 unsigned int poll_command_supported:1;
32ab4855 1917 unsigned int data_tx_status:1;
80bc75f1
JM		 1918};
1919
1920
1921static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1922{
1923 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1924 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1925 struct wiphy_info_data *info = arg;
9f51b113 1926 int p2p_go_supported = 0, p2p_client_supported = 0;
e8b5e24e
JB		 1927 int p2p_concurrent = 0;
1928 int auth_supported = 0, connect_supported = 0;
1929 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 1930 static struct nla_policy
1931 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
1932 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
1933 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
1934 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
1935 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
1936 },
1937 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
1938 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
1939 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
1940 };
80bc75f1
JM		 1941
1942 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1943 genlmsg_attrlen(gnlh, 0), NULL);
1944
1945 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 1946 capa->max_scan_ssids =
80bc75f1
JM		 1947 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1948
d21c63b9 1949 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 1950 capa->max_sched_scan_ssids =
d21c63b9
LC		 1951 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
1952
bd525934 1953 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 1954 capa->max_match_sets =
bd525934
LC		 1955 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
1956
1581b38b
JM		 1957 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1958 struct nlattr *nl_mode;
1959 int i;
1960 nla_for_each_nested(nl_mode,
1961 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 1962 switch (nla_type(nl_mode)) {
9f51b113 1963 case NL80211_IFTYPE_AP:
e8b5e24e 1964 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 1965 break;
9f51b113
JB		 1966 case NL80211_IFTYPE_P2P_GO:
1967 p2p_go_supported = 1;
1968 break;
1969 case NL80211_IFTYPE_P2P_CLIENT:
1970 p2p_client_supported = 1;
1971 break;
1581b38b
JM		 1972 }
1973 }
1974 }
1975
7626850d
JB		 1976 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
1977 struct nlattr *nl_combi;
1978 int rem_combi;
1979
1980 nla_for_each_nested(nl_combi,
1981 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
1982 rem_combi) {
1983 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
1984 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
1985 struct nlattr *nl_limit, *nl_mode;
1986 int err, rem_limit, rem_mode;
1987 int combination_has_p2p = 0, combination_has_mgd = 0;
1988
1989 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
1990 nl_combi,
1991 iface_combination_policy);
1992 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
1993 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
1994 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
1995 goto broken_combination;
1996
1997 nla_for_each_nested(nl_limit,
1998 tb_comb[NL80211_IFACE_COMB_LIMITS],
1999 rem_limit) {
2000 err = nla_parse_nested(tb_limit,
2001 MAX_NL80211_IFACE_LIMIT,
2002 nl_limit,
2003 iface_limit_policy);
2004 if (err ||
2005 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2006 goto broken_combination;
2007
2008 nla_for_each_nested(
2009 nl_mode,
2010 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2011 rem_mode) {
2012 int ift = nla_type(nl_mode);
2013 if (ift == NL80211_IFTYPE_P2P_GO ||
2014 ift == NL80211_IFTYPE_P2P_CLIENT)
2015 combination_has_p2p = 1;
2016 if (ift == NL80211_IFTYPE_STATION)
2017 combination_has_mgd = 1;
2018 }
2019 if (combination_has_p2p && combination_has_mgd)
2020 break;
2021 }
2022
2023 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 2024 p2p_concurrent = 1;
7626850d
JB		 2025 break;
2026 }
2027
2028broken_combination:
2029 ;
2030 }
2031 }
2032
93d11400
ZY		 2033 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
2034 struct nlattr *nl_cmd;
2035 int i;
2036
2037 nla_for_each_nested(nl_cmd,
2038 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 2039 switch (nla_get_u32(nl_cmd)) {
2040 case NL80211_CMD_AUTHENTICATE:
2041 auth_supported = 1;
2042 break;
2043 case NL80211_CMD_CONNECT:
2044 connect_supported = 1;
2045 break;
2046 case NL80211_CMD_START_SCHED_SCAN:
2047 capa->sched_scan_supported = 1;
2048 break;
39718852
JB		 2049 case NL80211_CMD_PROBE_CLIENT:
2050 info->poll_command_supported = 1;
2051 break;
e8b5e24e 2052 }
93d11400
ZY		 2053 }
2054 }
2055
e8b5e24e
JB		 2056 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2057 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2058 "off-channel TX");
2059 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2060 }
2061
2062 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2063 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2064 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2065 }
5dfca53f 2066
e8b5e24e
JB		 2067 /* default to 5000 since early versions of mac80211 don't set it */
2068 capa->max_remain_on_chan = 5000;
004ba773 2069
89e07afb 2070 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 2071 capa->max_remain_on_chan =
89e07afb
JB		 2072 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
2073
e8b5e24e
JB		 2074 if (auth_supported)
2075 capa->flags |= WPA_DRIVER_FLAGS_SME;
2076 else if (!connect_supported) {
2077 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2078 "authentication/association or connect commands");
2079 info->error = 1;
2080 }
2081
2082 if (p2p_go_supported && p2p_client_supported)
2083 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2084 if (p2p_concurrent) {
2085 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2086 "interface (driver advertised support)");
2087 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2088 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
2089 }
2090
03ea1786
AN		 2091 if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
2092 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2093 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2094
2095 if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) {
2096 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2097 capa->flags |=
2098 WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2099 }
2100 }
2101
61cbe2ff
JB		 2102 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2103 info->device_ap_sme = 1;
2104
32ab4855
JB		 2105 if (tb[NL80211_ATTR_FEATURE_FLAGS]) {
2106 u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]);
2107
2108 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2109 info->data_tx_status = 1;
2110 }
2111
80bc75f1
JM		 2112 return NL_SKIP;
2113}
2114
2115
2116static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2117 struct wiphy_info_data *info)
2118{
2119 struct nl_msg *msg;
2120
2121 os_memset(info, 0, sizeof(*info));
e8b5e24e 2122 info->capa = &drv->capa;
89e07afb 2123
80bc75f1
JM		 2124 msg = nlmsg_alloc();
2125 if (!msg)
2126 return -1;
2127
9fb04070 2128 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 2129
a2e40bb6 2130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 2131
2132 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
2133 return 0;
2134 msg = NULL;
2135nla_put_failure:
2136 nlmsg_free(msg);
2137 return -1;
2138}
2139
2140
93d11400 2141static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 2142{
2143 struct wiphy_info_data info;
2144 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 2145 return -1;
e8b5e24e
JB		 2146
2147 if (info.error)
2148 return -1;
2149
80bc75f1 2150 drv->has_capability = 1;
1b2a72e8
JM		 2151 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2152 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2153 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2154 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2155 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2156 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2157 WPA_DRIVER_CAPA_ENC_WEP104 |
2158 WPA_DRIVER_CAPA_ENC_TKIP |
2159 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 2160 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2161 WPA_DRIVER_AUTH_SHARED |
2162 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 2163
871f4dd0 2164 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 2165 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 2166 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4dc03726 2167 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 2168
61cbe2ff 2169 drv->device_ap_sme = info.device_ap_sme;
39718852 2170 drv->poll_command_supported = info.poll_command_supported;
32ab4855 2171 drv->data_tx_status = info.data_tx_status;
61cbe2ff 2172
93d11400 2173 return 0;
80bc75f1
JM		 2174}
2175
2176
2a7b66f5
BG		 2177static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2178{
2179 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2180 if (global->nl_cb == NULL) {
2181 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2182 "callbacks");
2183 return -1;
2184 }
2185
276e2d67
BG		 2186 if (nl_create_handles(&global->nl, global->nl_cb, "nl"))
2187 return -1;
2188
335d42b1
JB		 2189 global->nl80211_id = genl_ctrl_resolve(global->nl.handle, "nl80211");
2190 if (global->nl80211_id < 0) {
276e2d67
BG		 2191 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2192 "found");
2193 return -1;
2194 }
2195
2a7b66f5
BG		 2196 return 0;
2197}
2198
2199
ba2d0d7d 2200static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3f5285e8 2201{
2a7b66f5 2202 struct nl80211_global *global = drv->global;
9fff9fdc 2203 int ret;
3f5285e8 2204
9fff9fdc 2205 /* Initialize generic netlink and nl80211 */
3f5285e8 2206
2a7b66f5 2207 if (nl_create_handles(&drv->nl_event, global->nl_cb, "event"))
9fff9fdc 2208 goto err3;
9fff9fdc 2209
97865538
JM		 2210 ret = nl_get_multicast_id(drv, "nl80211", "scan");
2211 if (ret >= 0)
a92dfde8 2212 ret = nl_socket_add_membership(drv->nl_event.handle, ret);
97865538
JM		 2213 if (ret < 0) {
2214 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2215 "membership for scan events: %d (%s)",
2216 ret, strerror(-ret));
2217 goto err4;
2218 }
c2a04078
JM		 2219
2220 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
2221 if (ret >= 0)
a92dfde8 2222 ret = nl_socket_add_membership(drv->nl_event.handle, ret);
c2a04078
JM		 2223 if (ret < 0) {
2224 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2225 "membership for mlme events: %d (%s)",
2226 ret, strerror(-ret));
2227 goto err4;
2228 }
c2a04078 2229
33c5deb8
JM		 2230 ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
2231 if (ret >= 0)
a92dfde8 2232 ret = nl_socket_add_membership(drv->nl_event.handle, ret);
33c5deb8
JM		 2233 if (ret < 0) {
2234 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2235 "membership for regulatory events: %d (%s)",
2236 ret, strerror(-ret));
2237 /* Continue without regulatory events */
2238 }
2239
1afc986d
JB		 2240 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2241 if (!drv->nl_cb) {
2242 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
2243 goto err4;
2244 }
2245
2246 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2247 no_seq_check, NULL);
2248 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
2249
a92dfde8 2250 eloop_register_read_sock(nl_socket_get_fd(drv->nl_event.handle),
5582a5d1 2251 wpa_driver_nl80211_event_receive, drv,
a92dfde8 2252 drv->nl_event.handle);
97865538 2253
9fff9fdc
JM		 2254 return 0;
2255
2256err4:
a92dfde8 2257 nl_destroy_handles(&drv->nl_event);
9fff9fdc 2258err3:
9fff9fdc
JM		 2259 return -1;
2260}
2261
2262
8401a6b0
JM		 2263static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2264{
8401a6b0 2265 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2266 /*
2267 * This may be for any interface; use ifdown event to disable
2268 * interface.
2269 */
8401a6b0
JM		 2270}
2271
2272
2273static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2274{
2275 struct wpa_driver_nl80211_data *drv = ctx;
2276 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 2277 if (linux_set_iface_flags(drv->global->ioctl_sock,
2278 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 2279 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2280 "after rfkill unblock");
2281 return;
2282 }
a63063b4 2283 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2284}
2285
2286
6859f1cb
BG		 2287static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2288{
2289 /* Find phy (radio) to which this interface belongs */
2290 char buf[90], *pos;
2291 int f, rv;
2292
2293 drv->phyname[0] = '\0';
2294 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2295 drv->first_bss.ifname);
2296 f = open(buf, O_RDONLY);
2297 if (f < 0) {
2298 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2299 buf, strerror(errno));
2300 return;
2301 }
2302
2303 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2304 close(f);
2305 if (rv < 0) {
2306 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2307 buf, strerror(errno));
2308 return;
2309 }
2310
2311 drv->phyname[rv] = '\0';
2312 pos = os_strchr(drv->phyname, '\n');
2313 if (pos)
2314 *pos = '\0';
2315 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2316 drv->first_bss.ifname, drv->phyname);
2317}
2318
2319
32ab4855
JB		 2320static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
2321 void *eloop_ctx,
2322 void *handle)
2323{
2324 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2325 u8 data[2048];
2326 struct msghdr msg;
2327 struct iovec entry;
2328 struct {
2329 struct cmsghdr cm;
2330 char control[512];
2331 } control;
2332 struct cmsghdr *cmsg;
2333 int res, found_ee = 0, found_wifi = 0, acked = 0;
2334 union wpa_event_data event;
2335
2336 memset(&msg, 0, sizeof(msg));
2337 msg.msg_iov = &entry;
2338 msg.msg_iovlen = 1;
2339 entry.iov_base = data;
2340 entry.iov_len = sizeof(data);
2341 msg.msg_control = &control;
2342 msg.msg_controllen = sizeof(control);
2343
2344 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
2345 /* if error or not fitting 802.3 header, return */
2346 if (res < 14)
2347 return;
2348
2349 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
2350 {
2351 if (cmsg->cmsg_level == SOL_SOCKET &&
2352 cmsg->cmsg_type == SCM_WIFI_STATUS) {
2353 int *ack;
2354
2355 found_wifi = 1;
2356 ack = (void *)CMSG_DATA(cmsg);
2357 acked = *ack;
2358 }
2359
2360 if (cmsg->cmsg_level == SOL_PACKET &&
2361 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
2362 struct sock_extended_err *err =
2363 (struct sock_extended_err *)CMSG_DATA(cmsg);
2364
2365 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
2366 found_ee = 1;
2367 }
2368 }
2369
2370 if (!found_ee || !found_wifi)
2371 return;
2372
2373 memset(&event, 0, sizeof(event));
2374 event.eapol_tx_status.dst = data;
2375 event.eapol_tx_status.data = data + 14;
2376 event.eapol_tx_status.data_len = res - 14;
2377 event.eapol_tx_status.ack = acked;
2378 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
2379}
2380
2381
9fff9fdc
JM		 2382/**
2383 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2384 * @ctx: context to be used when calling wpa_supplicant functions,
2385 * e.g., wpa_supplicant_event()
2386 * @ifname: interface name, e.g., wlan0
f2ed8023 2387 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 2388 * Returns: Pointer to private data, %NULL on failure
2389 */
f2ed8023
JM		 2390static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2391 void *global_priv)
9fff9fdc 2392{
9fff9fdc 2393 struct wpa_driver_nl80211_data *drv;
8401a6b0 2394 struct rfkill_config *rcfg;
a2e40bb6 2395 struct i802_bss *bss;
9fff9fdc 2396
a5c696ad
JM		 2397 if (global_priv == NULL)
2398 return NULL;
9fff9fdc
JM		 2399 drv = os_zalloc(sizeof(*drv));
2400 if (drv == NULL)
2401 return NULL;
f2ed8023 2402 drv->global = global_priv;
9fff9fdc 2403 drv->ctx = ctx;
a2e40bb6
FF		 2404 bss = &drv->first_bss;
2405 bss->drv = drv;
2406 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 2407 drv->monitor_ifidx = -1;
2408 drv->monitor_sock = -1;
d12dab4c 2409 drv->eapol_tx_sock = -1;
b1f625e0 2410 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 2411
ba2d0d7d 2412 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 2413 os_free(drv);
2414 return NULL;
2415 }
9fff9fdc 2416
6859f1cb
BG		 2417 nl80211_get_phy_name(drv);
2418
8401a6b0
JM		 2419 rcfg = os_zalloc(sizeof(*rcfg));
2420 if (rcfg == NULL)
2421 goto failed;
2422 rcfg->ctx = drv;
2423 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2424 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2425 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2426 drv->rfkill = rfkill_init(rcfg);
52169389 2427 if (drv->rfkill == NULL) {
8401a6b0 2428 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 2429 os_free(rcfg);
2430 }
8401a6b0 2431
08063178 2432 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 2433 goto failed;
7524cfb1 2434
d12dab4c 2435 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 2436 if (drv->eapol_tx_sock < 0)
2437 goto failed;
2438
2439 if (drv->data_tx_status) {
2440 int enabled = 1;
2441
2442 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
2443 &enabled, sizeof(enabled)) < 0) {
2444 wpa_printf(MSG_DEBUG,
2445 "nl80211: wifi status sockopt failed\n");
2446 drv->data_tx_status = 0;
2447 } else {
2448 eloop_register_read_sock(drv->eapol_tx_sock,
2449 wpa_driver_nl80211_handle_eapol_tx_status,
2450 drv, NULL);
2451 }
2452 }
f10bfc9a 2453
dac12351 2454 if (drv->global) {
c4bb8817 2455 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 2456 drv->in_interface_list = 1;
2457 }
c4bb8817 2458
a2e40bb6 2459 return bss;
7524cfb1 2460
bbaf0837 2461failed:
dac12351 2462 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 2463 return NULL;
2464}
2465
2466
bd94971e 2467static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
5582a5d1 2468 struct nl_handle *nl_handle,
bd94971e 2469 u16 type, const u8 *match, size_t match_len)
58f6fbe0
JM		 2470{
2471 struct nl_msg *msg;
2472 int ret = -1;
2473
2474 msg = nlmsg_alloc();
2475 if (!msg)
2476 return -1;
2477
9fb04070 2478 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0
JM		 2479
2480 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
bd94971e 2481 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 2482 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
2483
5582a5d1 2484 ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 2485 msg = NULL;
2486 if (ret) {
5582a5d1
JB		 2487 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2488 "failed (type=%u): ret=%d (%s)",
2489 type, ret, strerror(-ret));
2490 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 2491 match, match_len);
2492 goto nla_put_failure;
2493 }
2494 ret = 0;
2495nla_put_failure:
2496 nlmsg_free(msg);
2497 return ret;
2498}
2499
2500
bd94971e
JB		 2501static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
2502 const u8 *match, size_t match_len)
2503{
2504 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
a92dfde8 2505 return nl80211_register_frame(drv, drv->nl_event.handle,
5582a5d1 2506 type, match, match_len);
bd94971e
JB		 2507}
2508
2509
58f6fbe0
JM		 2510static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
2511{
4fe9fa0d 2512#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2
JM		 2513 /* GAS Initial Request */
2514 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
2515 return -1;
2516 /* GAS Initial Response */
2517 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
2518 return -1;
18708aad
JM		 2519 /* GAS Comeback Request */
2520 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
2521 return -1;
2522 /* GAS Comeback Response */
2523 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
2524 return -1;
4fe9fa0d
JM		 2525#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
2526#ifdef CONFIG_P2P
046b26a2
JM		 2527 /* P2P Public Action */
2528 if (nl80211_register_action_frame(drv,
2529 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2530 6) < 0)
2531 return -1;
2532 /* P2P Action */
2533 if (nl80211_register_action_frame(drv,
2534 (u8 *) "\x7f\x50\x6f\x9a\x09",
2535 5) < 0)
2536 return -1;
2537#endif /* CONFIG_P2P */
7d878ca7
JM		 2538#ifdef CONFIG_IEEE80211W
2539 /* SA Query Response */
2540 if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
2541 return -1;
2542#endif /* CONFIG_IEEE80211W */
35287637
AN		 2543#ifdef CONFIG_TDLS
2544 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
2545 /* TDLS Discovery Response */
2546 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0e", 2) <
2547 0)
2548 return -1;
2549 }
2550#endif /* CONFIG_TDLS */
046b26a2 2551
7b90c16a
JM		 2552 /* FT Action frames */
2553 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
2554 return -1;
2555 else
2556 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
2557 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
2558
71269b37
JM		 2559 /* WNM - BSS Transition Management Request */
2560 if (nl80211_register_action_frame(drv, (u8 *) "\x0a\x07", 2) < 0)
2561 return -1;
2562
58f6fbe0
JM		 2563 return 0;
2564}
2565
2566
8401a6b0
JM		 2567static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2568{
2569 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2570}
2571
2572
362f781e 2573static int
7524cfb1
JM		 2574wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
2575{
a2e40bb6 2576 struct i802_bss *bss = &drv->first_bss;
8401a6b0 2577 int send_rfkill_event = 0;
a2e40bb6
FF		 2578
2579 drv->ifindex = if_nametoindex(bss->ifname);
2580 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 2581
bbaf0837 2582#ifndef HOSTAPD
ff6a158b
JM		 2583 /*
2584 * Make sure the interface starts up in station mode unless this is a
2585 * dynamically added interface (e.g., P2P) that was already configured
2586 * with proper iftype.
2587 */
a5c696ad 2588 if (drv->ifindex != drv->global->if_add_ifindex &&
b1f625e0 2589 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 2590 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 2591 "use managed mode");
6e8183d7 2592 return -1;
a87c9d96
JM		 2593 }
2594
c81eff1a 2595 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 2596 if (rfkill_is_blocked(drv->rfkill)) {
2597 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2598 "interface '%s' due to rfkill",
2599 bss->ifname);
a63063b4 2600 drv->if_disabled = 1;
8401a6b0
JM		 2601 send_rfkill_event = 1;
2602 } else {
2603 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2604 "interface '%s' UP", bss->ifname);
2605 return -1;
2606 }
362f781e 2607 }
3f5285e8 2608
36d84860 2609 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 2610 1, IF_OPER_DORMANT);
bbaf0837 2611#endif /* HOSTAPD */
362f781e 2612
2fee890a
JM		 2613 if (wpa_driver_nl80211_capa(drv))
2614 return -1;
2615
c81eff1a
BG		 2616 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2617 drv->addr))
2136f480 2618 return -1;
f2ed8023 2619
7b90c16a
JM		 2620 if (nl80211_register_action_frames(drv) < 0) {
2621 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
2622 "frame processing - ignore for now");
2623 /*
2624 * Older kernel versions did not support this, so ignore the
2625 * error for now. Some functionality may not be available
2626 * because of this.
2627 */
2628 }
58f6fbe0 2629
8401a6b0
JM		 2630 if (send_rfkill_event) {
2631 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2632 drv, drv->ctx);
2633 }
2634
362f781e 2635 return 0;
3f5285e8
JM		 2636}
2637
2638
8a27af5c
JM		 2639static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2640{
2641 struct nl_msg *msg;
2642
2643 msg = nlmsg_alloc();
2644 if (!msg)
2645 return -ENOMEM;
2646
9fb04070 2647 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 2648 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2649
2650 return send_and_recv_msgs(drv, msg, NULL, NULL);
2651 nla_put_failure:
2652 return -ENOBUFS;
2653}
8a27af5c
JM		 2654
2655
3f5285e8 2656/**
7e5ba1b9
JM		 2657 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2658 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 2659 *
2660 * Shut down driver interface and processing of driver events. Free
2661 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2662 */
7e5ba1b9 2663static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 2664{
a2e40bb6
FF		 2665 struct i802_bss *bss = priv;
2666 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2667
32ab4855
JB		 2668 if (drv->data_tx_status)
2669 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 2670 if (drv->eapol_tx_sock >= 0)
2671 close(drv->eapol_tx_sock);
f10bfc9a 2672
221a59c9 2673 if (bss->nl_preq.handle)
5582a5d1 2674 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 2675 if (bss->added_if_into_bridge) {
c81eff1a
BG		 2676 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
2677 bss->ifname) < 0)
94627f6c
JM		 2678 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2679 "interface %s from bridge %s: %s",
e17a2477 2680 bss->ifname, bss->brname, strerror(errno));
94627f6c 2681 }
e17a2477 2682 if (bss->added_bridge) {
c81eff1a 2683 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 2684 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2685 "bridge %s: %s",
e17a2477 2686 bss->brname, strerror(errno));
94627f6c
JM		 2687 }
2688
460456f8 2689 nl80211_remove_monitor_interface(drv);
8a27af5c 2690
b1f625e0 2691 if (is_ap_interface(drv->nlmode))
8a27af5c 2692 wpa_driver_nl80211_del_beacon(drv);
0915d02c 2693
bbaf0837
JM		 2694#ifdef HOSTAPD
2695 if (drv->last_freq_ht) {
2696 /* Clear HT flags from the driver */
2697 struct hostapd_freq_params freq;
2698 os_memset(&freq, 0, sizeof(freq));
2699 freq.freq = drv->last_freq;
2700 i802_set_freq(priv, &freq);
2701 }
2702
bbaf0837
JM		 2703 if (drv->eapol_sock >= 0) {
2704 eloop_unregister_read_sock(drv->eapol_sock);
2705 close(drv->eapol_sock);
2706 }
2707
2708 if (drv->if_indices != drv->default_if_indices)
2709 os_free(drv->if_indices);
1b648c7e 2710#endif /* HOSTAPD */
3f5285e8 2711
b3af99d2 2712 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 2713 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2714
36d84860
BG		 2715 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
2716 IF_OPER_UP);
8401a6b0 2717 rfkill_deinit(drv->rfkill);
3f5285e8 2718
bbaf0837
JM		 2719 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2720
c81eff1a 2721 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
b1f625e0 2722 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
3f5285e8 2723
a92dfde8 2724 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_event.handle));
a92dfde8 2725 nl_destroy_handles(&drv->nl_event);
1afc986d 2726 nl_cb_put(drv->nl_cb);
3f5285e8 2727
3812464c
JM		 2728 os_free(drv->filter_ssids);
2729
dac12351 2730 if (drv->in_interface_list)
f2ed8023
JM		 2731 dl_list_del(&drv->list);
2732
3f5285e8
JM		 2733 os_free(drv);
2734}
2735
2736
2737/**
2738 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 2739 * @eloop_ctx: Driver private data
3f5285e8
JM		 2740 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
2741 *
2742 * This function can be used as registered timeout when starting a scan to
2743 * generate a scan completed event if the driver does not report this.
2744 */
2745static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2746{
ad1e68e6 2747 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 2748 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 2749 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2750 drv->ap_scan_as_station);
2751 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 2752 }
3f5285e8
JM		 2753 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
2754 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
2755}
2756
2757
2758/**
2759 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 2760 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 2761 * @params: Scan parameters
3f5285e8
JM		 2762 * Returns: 0 on success, -1 on failure
2763 */
6a1063e0
JM		 2764static int wpa_driver_nl80211_scan(void *priv,
2765 struct wpa_driver_scan_params *params)
3f5285e8 2766{
a2e40bb6
FF		 2767 struct i802_bss *bss = priv;
2768 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2769 int ret = 0, timeout;
47185fc7 2770 struct nl_msg *msg, *ssids, *freqs, *rates;
6a1063e0 2771 size_t i;
3f5285e8 2772
0e75527f
JM		 2773 msg = nlmsg_alloc();
2774 ssids = nlmsg_alloc();
d3a98225 2775 freqs = nlmsg_alloc();
47185fc7
RM		 2776 rates = nlmsg_alloc();
2777 if (!msg || !ssids || !freqs || !rates) {
0e75527f
JM		 2778 nlmsg_free(msg);
2779 nlmsg_free(ssids);
d3a98225 2780 nlmsg_free(freqs);
47185fc7 2781 nlmsg_free(rates);
3f5285e8
JM		 2782 return -1;
2783 }
2784
3812464c
JM		 2785 os_free(drv->filter_ssids);
2786 drv->filter_ssids = params->filter_ssids;
2787 params->filter_ssids = NULL;
2788 drv->num_filter_ssids = params->num_filter_ssids;
2789
9fb04070 2790 nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN);
0e75527f
JM		 2791
2792 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2793
6a1063e0 2794 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 2795 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
2796 params->ssids[i].ssid,
2797 params->ssids[i].ssid_len);
6a1063e0
JM		 2798 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2799 params->ssids[i].ssid);
3f5285e8 2800 }
6a1063e0
JM		 2801 if (params->num_ssids)
2802 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 2803
d173df52 2804 if (params->extra_ies) {
3b1c7bfd
JM		 2805 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
2806 params->extra_ies, params->extra_ies_len);
d173df52
JM		 2807 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2808 params->extra_ies);
2809 }
2810
d3a98225 2811 if (params->freqs) {
9fad706c
JM		 2812 for (i = 0; params->freqs[i]; i++) {
2813 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2814 "MHz", params->freqs[i]);
d3a98225 2815 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 2816 }
d3a98225
JM		 2817 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2818 }
2819
47185fc7
RM		 2820 if (params->p2p_probe) {
2821 /*
2822 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
2823 * by masking out everything else apart from the OFDM rates 6,
2824 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
2825 * rates are left enabled.
2826 */
2827 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
2828 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
2829 nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates);
970fa12e
RM		 2830
2831 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 2832 }
2833
0e75527f
JM		 2834 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2835 msg = NULL;
2836 if (ret) {
2837 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
2838 "(%s)", ret, strerror(-ret));
ad1e68e6 2839#ifdef HOSTAPD
b1f625e0 2840 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 2841 /*
2842 * mac80211 does not allow scan requests in AP mode, so
2843 * try to do this in station mode.
2844 */
b1f625e0
EP		 2845 if (wpa_driver_nl80211_set_mode(
2846 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 2847 goto nla_put_failure;
2848
2849 if (wpa_driver_nl80211_scan(drv, params)) {
b1f625e0 2850 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 2851 goto nla_put_failure;
2852 }
2853
2854 /* Restore AP mode when processing scan results */
b1f625e0 2855 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 2856 ret = 0;
2857 } else
2858 goto nla_put_failure;
2859#else /* HOSTAPD */
0e75527f 2860 goto nla_put_failure;
ad1e68e6 2861#endif /* HOSTAPD */
3f5285e8
JM		 2862 }
2863
2864 /* Not all drivers generate "scan completed" wireless event, so try to
2865 * read results after a timeout. */
0e75527f 2866 timeout = 10;
3f5285e8
JM		 2867 if (drv->scan_complete_events) {
2868 /*
d173df52
JM		 2869 * The driver seems to deliver events to notify when scan is
2870 * complete, so use longer timeout to avoid race conditions
2871 * with scanning and following association request.
3f5285e8
JM		 2872 */
2873 timeout = 30;
2874 }
2875 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
2876 "seconds", ret, timeout);
2877 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 2878 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
2879 drv, drv->ctx);
3f5285e8 2880
0e75527f
JM		 2881nla_put_failure:
2882 nlmsg_free(ssids);
2883 nlmsg_free(msg);
d3a98225 2884 nlmsg_free(freqs);
47185fc7 2885 nlmsg_free(rates);
3f5285e8
JM		 2886 return ret;
2887}
2888
2889
d21c63b9
LC		 2890/**
2891 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
2892 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
2893 * @params: Scan parameters
2894 * @interval: Interval between scan cycles in milliseconds
2895 * Returns: 0 on success, -1 on failure or if not supported
2896 */
2897static int wpa_driver_nl80211_sched_scan(void *priv,
2898 struct wpa_driver_scan_params *params,
2899 u32 interval)
2900{
2901 struct i802_bss *bss = priv;
2902 struct wpa_driver_nl80211_data *drv = bss->drv;
2903 int ret = 0;
bd525934 2904 struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets;
d21c63b9
LC		 2905 size_t i;
2906
216eede8
DS		 2907#ifdef ANDROID
2908 if (!drv->capa.sched_scan_supported)
2909 return android_pno_start(bss, params);
2910#endif /* ANDROID */
2911
d21c63b9
LC		 2912 msg = nlmsg_alloc();
2913 ssids = nlmsg_alloc();
2914 freqs = nlmsg_alloc();
2915 if (!msg || !ssids || !freqs) {
2916 nlmsg_free(msg);
2917 nlmsg_free(ssids);
2918 nlmsg_free(freqs);
2919 return -1;
2920 }
2921
2922 os_free(drv->filter_ssids);
2923 drv->filter_ssids = params->filter_ssids;
2924 params->filter_ssids = NULL;
2925 drv->num_filter_ssids = params->num_filter_ssids;
2926
9fb04070 2927 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN);
d21c63b9
LC		 2928
2929 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2930
2931 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
2932
fb67eec6
JM		 2933 if (drv->num_filter_ssids &&
2934 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) {
bd525934
LC		 2935 match_sets = nlmsg_alloc();
2936
2937 for (i = 0; i < drv->num_filter_ssids; i++) {
2938 wpa_hexdump_ascii(MSG_MSGDUMP,
2939 "nl80211: Sched scan filter SSID",
2940 drv->filter_ssids[i].ssid,
2941 drv->filter_ssids[i].ssid_len);
2942
2943 match_set_ssid = nlmsg_alloc();
2944 nla_put(match_set_ssid,
2945 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
2946 drv->filter_ssids[i].ssid_len,
2947 drv->filter_ssids[i].ssid);
2948
2949 nla_put_nested(match_sets, i + 1, match_set_ssid);
2950
2951 nlmsg_free(match_set_ssid);
2952 }
2953
2954 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
2955 match_sets);
2956 nlmsg_free(match_sets);
2957 }
2958
d21c63b9
LC		 2959 for (i = 0; i < params->num_ssids; i++) {
2960 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
2961 params->ssids[i].ssid,
2962 params->ssids[i].ssid_len);
2963 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2964 params->ssids[i].ssid);
2965 }
2966 if (params->num_ssids)
2967 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
2968
2969 if (params->extra_ies) {
2970 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
2971 params->extra_ies, params->extra_ies_len);
2972 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2973 params->extra_ies);
2974 }
2975
2976 if (params->freqs) {
2977 for (i = 0; params->freqs[i]; i++) {
2978 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2979 "MHz", params->freqs[i]);
2980 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
2981 }
2982 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2983 }
2984
2985 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2986
2987 /* TODO: if we get an error here, we should fall back to normal scan */
2988
2989 msg = NULL;
2990 if (ret) {
2991 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
2992 "ret=%d (%s)", ret, strerror(-ret));
2993 goto nla_put_failure;
2994 }
2995
2996 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
2997 "scan interval %d msec", ret, interval);
2998
2999nla_put_failure:
3000 nlmsg_free(ssids);
3001 nlmsg_free(msg);
3002 nlmsg_free(freqs);
3003 return ret;
3004}
3005
3006
3007/**
3008 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
3009 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3010 * Returns: 0 on success, -1 on failure or if not supported
3011 */
3012static int wpa_driver_nl80211_stop_sched_scan(void *priv)
3013{
3014 struct i802_bss *bss = priv;
3015 struct wpa_driver_nl80211_data *drv = bss->drv;
3016 int ret = 0;
3017 struct nl_msg *msg;
3018
216eede8
DS		 3019#ifdef ANDROID
3020 if (!drv->capa.sched_scan_supported)
3021 return android_pno_stop(bss);
3022#endif /* ANDROID */
3023
d21c63b9
LC		 3024 msg = nlmsg_alloc();
3025 if (!msg)
3026 return -1;
3027
9fb04070 3028 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 3029
3030 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3031
3032 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3033 msg = NULL;
3034 if (ret) {
3035 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
3036 "ret=%d (%s)", ret, strerror(-ret));
3037 goto nla_put_failure;
3038 }
3039
3040 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
3041
3042nla_put_failure:
3043 nlmsg_free(msg);
3044 return ret;
3045}
3046
3047
3812464c
JM		 3048static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
3049{
3050 const u8 *end, *pos;
3051
3052 if (ies == NULL)
3053 return NULL;
3054
3055 pos = ies;
3056 end = ies + ies_len;
3057
3058 while (pos + 1 < end) {
3059 if (pos + 2 + pos[1] > end)
3060 break;
3061 if (pos[0] == ie)
3062 return pos;
3063 pos += 2 + pos[1];
3064 }
3065
3066 return NULL;
3067}
3068
3069
3070static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
3071 const u8 *ie, size_t ie_len)
3072{
3073 const u8 *ssid;
3074 size_t i;
3075
3076 if (drv->filter_ssids == NULL)
3077 return 0;
3078
3079 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
3080 if (ssid == NULL)
3081 return 1;
3082
3083 for (i = 0; i < drv->num_filter_ssids; i++) {
3084 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
3085 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
3086 0)
3087 return 0;
3088 }
3089
3090 return 1;
3091}
3092
3093
b3db1e1c 3094static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 3095{
b3db1e1c
JM		 3096 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3097 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3098 struct nlattr *bss[NL80211_BSS_MAX + 1];
3099 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
3100 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
3101 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
3102 [NL80211_BSS_TSF] = { .type = NLA_U64 },
3103 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
3104 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
3105 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
3106 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
3107 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 3108 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 3109 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 3110 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 3111 };
3812464c
JM		 3112 struct nl80211_bss_info_arg *_arg = arg;
3113 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 3114 struct wpa_scan_res **tmp;
3115 struct wpa_scan_res *r;
8c090654
JM		 3116 const u8 *ie, *beacon_ie;
3117 size_t ie_len, beacon_ie_len;
3118 u8 *pos;
46957a9b 3119 size_t i;
3f5285e8 3120
b3db1e1c
JM		 3121 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3122 genlmsg_attrlen(gnlh, 0), NULL);
3123 if (!tb[NL80211_ATTR_BSS])
3124 return NL_SKIP;
3125 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
3126 bss_policy))
3127 return NL_SKIP;
f5a8d422
JM		 3128 if (bss[NL80211_BSS_STATUS]) {
3129 enum nl80211_bss_status status;
3130 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3131 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3132 bss[NL80211_BSS_FREQUENCY]) {
3133 _arg->assoc_freq =
3134 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3135 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
3136 _arg->assoc_freq);
3137 }
20f5a4c2
JM		 3138 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3139 bss[NL80211_BSS_BSSID]) {
3140 os_memcpy(_arg->assoc_bssid,
3141 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
3142 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
3143 MACSTR, MAC2STR(_arg->assoc_bssid));
3144 }
f5a8d422
JM		 3145 }
3146 if (!res)
3147 return NL_SKIP;
b3db1e1c
JM		 3148 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
3149 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3150 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3151 } else {
3152 ie = NULL;
3153 ie_len = 0;
3154 }
8c090654
JM		 3155 if (bss[NL80211_BSS_BEACON_IES]) {
3156 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
3157 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
3158 } else {
3159 beacon_ie = NULL;
3160 beacon_ie_len = 0;
3161 }
3f5285e8 3162
3812464c
JM		 3163 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
3164 ie ? ie_len : beacon_ie_len))
3165 return NL_SKIP;
3166
8c090654 3167 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 3168 if (r == NULL)
b3db1e1c
JM		 3169 return NL_SKIP;
3170 if (bss[NL80211_BSS_BSSID])
3171 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
3172 ETH_ALEN);
3173 if (bss[NL80211_BSS_FREQUENCY])
3174 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3175 if (bss[NL80211_BSS_BEACON_INTERVAL])
3176 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
3177 if (bss[NL80211_BSS_CAPABILITY])
3178 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 3179 r->flags |= WPA_SCAN_NOISE_INVALID;
3180 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 3181 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 3182 r->level /= 100; /* mBm to dBm */
3183 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
3184 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
3185 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 3186 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 3187 } else
3188 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 3189 if (bss[NL80211_BSS_TSF])
3190 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 3191 if (bss[NL80211_BSS_SEEN_MS_AGO])
3192 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 3193 r->ie_len = ie_len;
8c090654
JM		 3194 pos = (u8 *) (r + 1);
3195 if (ie) {
3196 os_memcpy(pos, ie, ie_len);
3197 pos += ie_len;
3198 }
3199 r->beacon_ie_len = beacon_ie_len;
3200 if (beacon_ie)
3201 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 3202
e6b8efeb
JM		 3203 if (bss[NL80211_BSS_STATUS]) {
3204 enum nl80211_bss_status status;
3205 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3206 switch (status) {
3207 case NL80211_BSS_STATUS_AUTHENTICATED:
3208 r->flags |= WPA_SCAN_AUTHENTICATED;
3209 break;
3210 case NL80211_BSS_STATUS_ASSOCIATED:
3211 r->flags |= WPA_SCAN_ASSOCIATED;
3212 break;
3213 default:
3214 break;
3215 }
3216 }
3217
46957a9b
JM		 3218 /*
3219 * cfg80211 maintains separate BSS table entries for APs if the same
3220 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
3221 * not use frequency as a separate key in the BSS table, so filter out
3222 * duplicated entries. Prefer associated BSS entry in such a case in
3223 * order to get the correct frequency into the BSS table.
3224 */
3225 for (i = 0; i < res->num; i++) {
3226 const u8 *s1, *s2;
3227 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
3228 continue;
3229
3230 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
3231 res->res[i]->ie_len, WLAN_EID_SSID);
3232 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
3233 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
3234 os_memcmp(s1, s2, 2 + s1[1]) != 0)
3235 continue;
3236
3237 /* Same BSSID,SSID was already included in scan results */
3238 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
3239 "for " MACSTR, MAC2STR(r->bssid));
3240
3241 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
3242 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
3243 os_free(res->res[i]);
3244 res->res[i] = r;
3245 } else
3246 os_free(r);
3247 return NL_SKIP;
3248 }
3249
3f5285e8
JM		 3250 tmp = os_realloc(res->res,
3251 (res->num + 1) * sizeof(struct wpa_scan_res *));
3252 if (tmp == NULL) {
3253 os_free(r);
b3db1e1c 3254 return NL_SKIP;
3f5285e8
JM		 3255 }
3256 tmp[res->num++] = r;
3257 res->res = tmp;
b3db1e1c
JM		 3258
3259 return NL_SKIP;
3f5285e8 3260}
b3db1e1c 3261
3f5285e8 3262
d72aad94
JM		 3263static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3264 const u8 *addr)
3265{
3266 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3267 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 3268 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 3269 wpa_driver_nl80211_mlme(drv, addr,
3270 NL80211_CMD_DEAUTHENTICATE,
77339912 3271 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 3272 }
3273}
3274
3275
e6b8efeb
JM		 3276static void wpa_driver_nl80211_check_bss_status(
3277 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3278{
3279 size_t i;
3280
3281 for (i = 0; i < res->num; i++) {
3282 struct wpa_scan_res *r = res->res[i];
3283 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3284 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3285 "indicates BSS status with " MACSTR
3286 " as authenticated",
3287 MAC2STR(r->bssid));
b1f625e0 3288 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3289 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
3290 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
3291 0) {
3292 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
3293 " in local state (auth=" MACSTR
3294 " assoc=" MACSTR ")",
3295 MAC2STR(drv->auth_bssid),
3296 MAC2STR(drv->bssid));
582507be 3297 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 3298 }
3299 }
3300
3301 if (r->flags & WPA_SCAN_ASSOCIATED) {
3302 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3303 "indicate BSS status with " MACSTR
3304 " as associated",
3305 MAC2STR(r->bssid));
b1f625e0 3306 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3307 !drv->associated) {
3308 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3309 "(not associated) does not match "
3310 "with BSS state");
d72aad94 3311 clear_state_mismatch(drv, r->bssid);
b1f625e0 3312 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3313 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
3314 0) {
3315 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3316 "(associated with " MACSTR ") does "
3317 "not match with BSS state",
d72aad94
JM		 3318 MAC2STR(drv->bssid));
3319 clear_state_mismatch(drv, r->bssid);
3320 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 3321 }
3322 }
3323 }
3324}
3325
3326
7e5ba1b9 3327static struct wpa_scan_results *
8856462d 3328nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 3329{
b3db1e1c 3330 struct nl_msg *msg;
3f5285e8 3331 struct wpa_scan_results *res;
b3db1e1c 3332 int ret;
3812464c 3333 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 3334
3335 res = os_zalloc(sizeof(*res));
b3db1e1c 3336 if (res == NULL)
8e2c104f 3337 return NULL;
b3db1e1c
JM		 3338 msg = nlmsg_alloc();
3339 if (!msg)
3340 goto nla_put_failure;
3f5285e8 3341
9fb04070 3342 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 3343 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3344
3812464c
JM		 3345 arg.drv = drv;
3346 arg.res = res;
3347 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 3348 msg = NULL;
3349 if (ret == 0) {
577db0ae
GM		 3350 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
3351 "BSSes)", (unsigned long) res->num);
3352 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 3353 return res;
3f5285e8 3354 }
b3db1e1c
JM		 3355 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
3356 "(%s)", ret, strerror(-ret));
3357nla_put_failure:
3358 nlmsg_free(msg);
3359 wpa_scan_results_free(res);
3360 return NULL;
3f5285e8
JM		 3361}
3362
3363
8856462d
JM		 3364/**
3365 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
3366 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
3367 * Returns: Scan results on success, -1 on failure
3368 */
3369static struct wpa_scan_results *
3370wpa_driver_nl80211_get_scan_results(void *priv)
3371{
a2e40bb6
FF		 3372 struct i802_bss *bss = priv;
3373 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 3374 struct wpa_scan_results *res;
3375
3376 res = nl80211_get_scan_results(drv);
3377 if (res)
3378 wpa_driver_nl80211_check_bss_status(drv, res);
3379 return res;
3380}
3381
3382
3383static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
3384{
3385 struct wpa_scan_results *res;
3386 size_t i;
3387
3388 res = nl80211_get_scan_results(drv);
3389 if (res == NULL) {
3390 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
3391 return;
3392 }
3393
3394 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
3395 for (i = 0; i < res->num; i++) {
3396 struct wpa_scan_res *r = res->res[i];
3397 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
3398 (int) i, (int) res->num, MAC2STR(r->bssid),
3399 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
3400 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
3401 }
3402
3403 wpa_scan_results_free(res);
3404}
3405
3406
642187d6 3407static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 3408 enum wpa_alg alg, const u8 *addr,
3409 int key_idx, int set_tx,
642187d6
JM		 3410 const u8 *seq, size_t seq_len,
3411 const u8 *key, size_t key_len)
3f5285e8 3412{
a2e40bb6
FF		 3413 struct i802_bss *bss = priv;
3414 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 3415 int ifindex = if_nametoindex(ifname);
3f5285e8 3416 struct nl_msg *msg;
1ad1cdc2 3417 int ret;
3f5285e8 3418
1ad1cdc2
JM		 3419 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
3420 "set_tx=%d seq_len=%lu key_len=%lu",
3421 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8 3422 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185
JM		 3423#ifdef CONFIG_TDLS
3424 if (key_idx == -1)
3425 key_idx = 0;
3426#endif /* CONFIG_TDLS */
3f5285e8
JM		 3427
3428 msg = nlmsg_alloc();
1ad1cdc2
JM		 3429 if (!msg)
3430 return -ENOMEM;
3f5285e8
JM		 3431
3432 if (alg == WPA_ALG_NONE) {
9fb04070 3433 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 3434 } else {
9fb04070 3435 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 3436 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 3437 switch (alg) {
3438 case WPA_ALG_WEP:
3439 if (key_len == 5)
3440 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3441 WLAN_CIPHER_SUITE_WEP40);
3442 else
3443 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3444 WLAN_CIPHER_SUITE_WEP104);
3445 break;
3446 case WPA_ALG_TKIP:
3447 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3448 WLAN_CIPHER_SUITE_TKIP);
3449 break;
3450 case WPA_ALG_CCMP:
3451 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3452 WLAN_CIPHER_SUITE_CCMP);
3453 break;
3454 case WPA_ALG_IGTK:
3455 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3456 WLAN_CIPHER_SUITE_AES_CMAC);
3457 break;
3458 default:
3459 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3460 "algorithm %d", __func__, alg);
3f5285e8
JM		 3461 nlmsg_free(msg);
3462 return -1;
3463 }
3464 }
3465
849ef835 3466 if (seq && seq_len)
1ad1cdc2
JM		 3467 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
3468
0382097e 3469 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 3470 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
3471 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 3472
3473 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
3474 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
3475 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
3476 NL80211_KEYTYPE_GROUP);
3477 }
60ea8187
JM		 3478 } else if (addr && is_broadcast_ether_addr(addr)) {
3479 struct nl_msg *types;
3480 int err;
3481 wpa_printf(MSG_DEBUG, " broadcast key");
3482 types = nlmsg_alloc();
3483 if (!types)
3484 goto nla_put_failure;
3485 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3486 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3487 types);
3488 nlmsg_free(types);
3489 if (err)
3490 goto nla_put_failure;
3f5285e8
JM		 3491 }
3492 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 3493 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 3494
1ad1cdc2 3495 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 3496 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 3497 ret = 0;
3498 if (ret)
3499 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
3500 ret, strerror(-ret));
3f5285e8 3501
1ad1cdc2
JM		 3502 /*
3503 * If we failed or don't need to set the default TX key (below),
3504 * we're done here.
3505 */
3506 if (ret || !set_tx || alg == WPA_ALG_NONE)
3507 return ret;
b1f625e0 3508 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 3509 !is_broadcast_ether_addr(addr))
de12717a 3510 return ret;
3f5285e8 3511
1ad1cdc2
JM		 3512 msg = nlmsg_alloc();
3513 if (!msg)
3514 return -ENOMEM;
3f5285e8 3515
9fb04070 3516 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 3517 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
3518 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3519 if (alg == WPA_ALG_IGTK)
3520 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
3521 else
3522 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 3523 if (addr && is_broadcast_ether_addr(addr)) {
3524 struct nl_msg *types;
3525 int err;
3526 types = nlmsg_alloc();
3527 if (!types)
3528 goto nla_put_failure;
3529 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3530 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3531 types);
3532 nlmsg_free(types);
3533 if (err)
3534 goto nla_put_failure;
3535 } else if (addr) {
3536 struct nl_msg *types;
3537 int err;
3538 types = nlmsg_alloc();
3539 if (!types)
3540 goto nla_put_failure;
3541 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
3542 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3543 types);
3544 nlmsg_free(types);
3545 if (err)
3546 goto nla_put_failure;
3547 }
3f5285e8 3548
1ad1cdc2
JM		 3549 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3550 if (ret == -ENOENT)
3551 ret = 0;
3552 if (ret)
3553 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
3554 "err=%d %s)", ret, strerror(-ret));
3555 return ret;
3f5285e8
JM		 3556
3557nla_put_failure:
6241fcb1 3558 return -ENOBUFS;
3f5285e8
JM		 3559}
3560
3561
71934751 3562static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 3563 int key_idx, int defkey,
3564 const u8 *seq, size_t seq_len,
3565 const u8 *key, size_t key_len)
3566{
3567 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
3568 if (!key_attr)
3569 return -1;
3570
3571 if (defkey && alg == WPA_ALG_IGTK)
3572 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
3573 else if (defkey)
3574 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3575
3576 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
3577
d723bab4
JM		 3578 switch (alg) {
3579 case WPA_ALG_WEP:
3580 if (key_len == 5)
2aa5f847
JM		 3581 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3582 WLAN_CIPHER_SUITE_WEP40);
d723bab4 3583 else
2aa5f847
JM		 3584 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3585 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 3586 break;
3587 case WPA_ALG_TKIP:
2aa5f847 3588 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 3589 break;
3590 case WPA_ALG_CCMP:
2aa5f847 3591 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 3592 break;
3593 case WPA_ALG_IGTK:
2aa5f847
JM		 3594 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3595 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 3596 break;
3597 default:
3598 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3599 "algorithm %d", __func__, alg);
0194fedb 3600 return -1;
d723bab4 3601 }
0194fedb
JB		 3602
3603 if (seq && seq_len)
3604 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
3605
3606 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
3607
3608 nla_nest_end(msg, key_attr);
3609
3610 return 0;
3611 nla_put_failure:
3612 return -1;
3613}
3614
c811d5bc 3615
cfaab580
ZY		 3616static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
3617 struct nl_msg *msg)
3618{
3619 int i, privacy = 0;
3620 struct nlattr *nl_keys, *nl_key;
3621
3622 for (i = 0; i < 4; i++) {
3623 if (!params->wep_key[i])
3624 continue;
3625 privacy = 1;
3626 break;
3627 }
ce04af5a
JM		 3628 if (params->wps == WPS_MODE_PRIVACY)
3629 privacy = 1;
3630 if (params->pairwise_suite &&
3631 params->pairwise_suite != WPA_CIPHER_NONE)
3632 privacy = 1;
3633
cfaab580
ZY		 3634 if (!privacy)
3635 return 0;
3636
3637 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
3638
3639 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
3640 if (!nl_keys)
3641 goto nla_put_failure;
3642
3643 for (i = 0; i < 4; i++) {
3644 if (!params->wep_key[i])
3645 continue;
3646
3647 nl_key = nla_nest_start(msg, i);
3648 if (!nl_key)
3649 goto nla_put_failure;
3650
3651 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
3652 params->wep_key[i]);
3653 if (params->wep_key_len[i] == 5)
3654 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3655 WLAN_CIPHER_SUITE_WEP40);
3656 else
3657 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3658 WLAN_CIPHER_SUITE_WEP104);
3659
3660 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
3661
3662 if (i == params->wep_tx_keyidx)
3663 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3664
3665 nla_nest_end(msg, nl_key);
3666 }
3667 nla_nest_end(msg, nl_keys);
3668
3669 return 0;
3670
3671nla_put_failure:
3672 return -ENOBUFS;
3673}
3674
3675
c2a04078 3676static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 3677 const u8 *addr, int cmd, u16 reason_code,
3678 int local_state_change)
c2a04078
JM		 3679{
3680 int ret = -1;
3681 struct nl_msg *msg;
3682
3683 msg = nlmsg_alloc();
3684 if (!msg)
3685 return -1;
3686
9fb04070 3687 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 3688
3689 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3690 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
3691 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 3692 if (local_state_change)
3693 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 3694
3695 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3696 msg = NULL;
3697 if (ret) {
3b7ea880
BG		 3698 wpa_dbg(drv->ctx, MSG_DEBUG,
3699 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
3700 reason_code, ret, strerror(-ret));
c2a04078
JM		 3701 goto nla_put_failure;
3702 }
3703 ret = 0;
3704
3705nla_put_failure:
3706 nlmsg_free(msg);
3707 return ret;
3708}
3f5285e8
JM		 3709
3710
cfaab580
ZY		 3711static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
3712 const u8 *addr, int reason_code)
3713{
2e75a2b3
JM		 3714 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3715 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 3716 drv->associated = 0;
3717 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 3718 reason_code, 0);
cfaab580
ZY		 3719}
3720
3721
3f5285e8 3722static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 3723 int reason_code)
3f5285e8 3724{
a2e40bb6
FF		 3725 struct i802_bss *bss = priv;
3726 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3727 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3728 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 3729 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3730 __func__, MAC2STR(addr), reason_code);
13405f35 3731 drv->associated = 0;
21bdbe38
JM		 3732 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
3733 return nl80211_leave_ibss(drv);
c2a04078 3734 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 3735 reason_code, 0);
3f5285e8
JM		 3736}
3737
3738
3739static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 3740 int reason_code)
3f5285e8 3741{
a2e40bb6
FF		 3742 struct i802_bss *bss = priv;
3743 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3744 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3745 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 3746 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 3747 drv->associated = 0;
c2a04078 3748 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 3749 reason_code, 0);
3f5285e8
JM		 3750}
3751
3752
c2a04078
JM		 3753static int wpa_driver_nl80211_authenticate(
3754 void *priv, struct wpa_driver_auth_params *params)
3755{
a2e40bb6
FF		 3756 struct i802_bss *bss = priv;
3757 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 3758 int ret = -1, i;
c2a04078
JM		 3759 struct nl_msg *msg;
3760 enum nl80211_auth_type type;
2f4f73b1 3761 enum nl80211_iftype nlmode;
6d6f4bb8 3762 int count = 0;
c2a04078
JM		 3763
3764 drv->associated = 0;
e6b8efeb 3765 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 3766 /* FIX: IBSS mode */
2f4f73b1
EP		 3767 nlmode = params->p2p ?
3768 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
3769 if (drv->nlmode != nlmode &&
3770 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 3771 return -1;
3772
6d6f4bb8 3773retry:
c2a04078
JM		 3774 msg = nlmsg_alloc();
3775 if (!msg)
3776 return -1;
3777
3778 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
3779 drv->ifindex);
a0b2f99b 3780
9fb04070 3781 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 3782
a0b2f99b
JM		 3783 for (i = 0; i < 4; i++) {
3784 if (!params->wep_key[i])
3785 continue;
2ea2fcc7
HS		 3786 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
3787 NULL, i,
a0b2f99b
JM		 3788 i == params->wep_tx_keyidx, NULL, 0,
3789 params->wep_key[i],
3790 params->wep_key_len[i]);
0194fedb
JB		 3791 if (params->wep_tx_keyidx != i)
3792 continue;
3793 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
3794 params->wep_key[i], params->wep_key_len[i])) {
3795 nlmsg_free(msg);
3796 return -1;
3797 }
a0b2f99b
JM		 3798 }
3799
c2a04078
JM		 3800 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3801 if (params->bssid) {
3802 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3803 MAC2STR(params->bssid));
3804 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3805 }
3806 if (params->freq) {
3807 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3808 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3809 }
3810 if (params->ssid) {
3811 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3812 params->ssid, params->ssid_len);
3813 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3814 params->ssid);
3815 }
3816 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3817 if (params->ie)
3818 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 3819 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 3820 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 3821 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 3822 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 3823 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 3824 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 3825 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 3826 type = NL80211_AUTHTYPE_FT;
3827 else
3828 goto nla_put_failure;
3829 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3830 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 3831 if (params->local_state_change) {
3832 wpa_printf(MSG_DEBUG, " * Local state change only");
3833 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
3834 }
c2a04078
JM		 3835
3836 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3837 msg = NULL;
3838 if (ret) {
3b7ea880
BG		 3839 wpa_dbg(drv->ctx, MSG_DEBUG,
3840 "nl80211: MLME command failed (auth): ret=%d (%s)",
3841 ret, strerror(-ret));
6d6f4bb8 3842 count++;
77339912
JM		 3843 if (ret == -EALREADY && count == 1 && params->bssid &&
3844 !params->local_state_change) {
6d6f4bb8
JM		 3845 /*
3846 * mac80211 does not currently accept new
3847 * authentication if we are already authenticated. As a
3848 * workaround, force deauthentication and try again.
3849 */
3850 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3851 "after forced deauthentication");
3852 wpa_driver_nl80211_deauthenticate(
5205c4f9 3853 bss, params->bssid,
6d6f4bb8
JM		 3854 WLAN_REASON_PREV_AUTH_NOT_VALID);
3855 nlmsg_free(msg);
3856 goto retry;
3857 }
c2a04078
JM		 3858 goto nla_put_failure;
3859 }
3860 ret = 0;
3861 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
3862 "successfully");
3863
3864nla_put_failure:
3865 nlmsg_free(msg);
3866 return ret;
3867}
3868
3869
282d5590
JM		 3870struct phy_info_arg {
3871 u16 *num_modes;
3872 struct hostapd_hw_modes *modes;
3873};
3874
3875static int phy_info_handler(struct nl_msg *msg, void *arg)
3876{
3877 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3878 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3879 struct phy_info_arg *phy_info = arg;
3880
3881 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
3882
3883 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
3884 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3885 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
3886 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
3887 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
3888 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
3889 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
3890 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
3891 };
3892
3893 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
3894 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
3895 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3896 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
3897 };
3898
3899 struct nlattr *nl_band;
3900 struct nlattr *nl_freq;
3901 struct nlattr *nl_rate;
3902 int rem_band, rem_freq, rem_rate;
3903 struct hostapd_hw_modes *mode;
3904 int idx, mode_is_set;
3905
3906 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3907 genlmsg_attrlen(gnlh, 0), NULL);
3908
3909 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
3910 return NL_SKIP;
3911
3912 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 3913 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 3914 if (!mode)
3915 return NL_SKIP;
3916 phy_info->modes = mode;
3917
3918 mode_is_set = 0;
3919
3920 mode = &phy_info->modes[*(phy_info->num_modes)];
3921 memset(mode, 0, sizeof(*mode));
e3b473eb 3922 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
282d5590
JM		 3923 *(phy_info->num_modes) += 1;
3924
3925 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
3926 nla_len(nl_band), NULL);
3927
3928 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
3929 mode->ht_capab = nla_get_u16(
3930 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
3931 }
3932
be8eb8ab
JM		 3933 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
3934 mode->a_mpdu_params |= nla_get_u8(
3935 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
3936 0x03;
3937 }
3938
3939 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
3940 mode->a_mpdu_params |= nla_get_u8(
3941 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
3942 2;
3943 }
3944
08eb154d
JM		 3945 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
3946 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
3947 u8 *mcs;
3948 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
3949 os_memcpy(mode->mcs_set, mcs, 16);
3950 }
3951
282d5590
JM		 3952 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3953 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3954 nla_len(nl_freq), freq_policy);
3955 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3956 continue;
3957 mode->num_channels++;
3958 }
3959
e62fb0a0 3960 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 3961 if (!mode->channels)
3962 return NL_SKIP;
3963
3964 idx = 0;
3965
3966 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3967 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3968 nla_len(nl_freq), freq_policy);
3969 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3970 continue;
3971
3972 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
3973 mode->channels[idx].flag = 0;
3974
3975 if (!mode_is_set) {
3976 /* crude heuristic */
3977 if (mode->channels[idx].freq < 4000)
3978 mode->mode = HOSTAPD_MODE_IEEE80211B;
3979 else
3980 mode->mode = HOSTAPD_MODE_IEEE80211A;
3981 mode_is_set = 1;
3982 }
3983
3984 /* crude heuristic */
3985 if (mode->channels[idx].freq < 4000)
5a0ffb5f 3986 if (mode->channels[idx].freq == 2484)
282d5590
JM		 3987 mode->channels[idx].chan = 14;
3988 else
3989 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
3990 else
3991 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
3992
3993 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3994 mode->channels[idx].flag |=
3995 HOSTAPD_CHAN_DISABLED;
3996 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
3997 mode->channels[idx].flag |=
3998 HOSTAPD_CHAN_PASSIVE_SCAN;
3999 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
4000 mode->channels[idx].flag |=
4001 HOSTAPD_CHAN_NO_IBSS;
4002 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
4003 mode->channels[idx].flag |=
4004 HOSTAPD_CHAN_RADAR;
4005
4006 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
4007 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4008 mode->channels[idx].max_tx_power =
4009 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
4010
4011 idx++;
4012 }
4013
4014 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4015 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4016 nla_len(nl_rate), rate_policy);
4017 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4018 continue;
4019 mode->num_rates++;
4020 }
4021
e62fb0a0 4022 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 4023 if (!mode->rates)
4024 return NL_SKIP;
4025
4026 idx = 0;
4027
4028 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4029 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4030 nla_len(nl_rate), rate_policy);
4031 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4032 continue;
fb7842aa 4033 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 4034
4035 /* crude heuristic */
4036 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 4037 mode->rates[idx] > 200)
282d5590
JM		 4038 mode->mode = HOSTAPD_MODE_IEEE80211G;
4039
282d5590
JM		 4040 idx++;
4041 }
4042 }
4043
4044 return NL_SKIP;
4045}
4046
4047static struct hostapd_hw_modes *
4048wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
4049{
4050 u16 m;
4051 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
4052 int i, mode11g_idx = -1;
4053
4054 /* If only 802.11g mode is included, use it to construct matching
4055 * 802.11b mode data. */
4056
4057 for (m = 0; m < *num_modes; m++) {
4058 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
4059 return modes; /* 802.11b already included */
4060 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
4061 mode11g_idx = m;
4062 }
4063
4064 if (mode11g_idx < 0)
4065 return modes; /* 2.4 GHz band not supported at all */
4066
4067 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
4068 if (nmodes == NULL)
4069 return modes; /* Could not add 802.11b mode */
4070
4071 mode = &nmodes[*num_modes];
4072 os_memset(mode, 0, sizeof(*mode));
4073 (*num_modes)++;
4074 modes = nmodes;
4075
4076 mode->mode = HOSTAPD_MODE_IEEE80211B;
4077
4078 mode11g = &modes[mode11g_idx];
4079 mode->num_channels = mode11g->num_channels;
4080 mode->channels = os_malloc(mode11g->num_channels *
4081 sizeof(struct hostapd_channel_data));
4082 if (mode->channels == NULL) {
4083 (*num_modes)--;
4084 return modes; /* Could not add 802.11b mode */
4085 }
4086 os_memcpy(mode->channels, mode11g->channels,
4087 mode11g->num_channels * sizeof(struct hostapd_channel_data));
4088
4089 mode->num_rates = 0;
fb7842aa 4090 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 4091 if (mode->rates == NULL) {
4092 os_free(mode->channels);
4093 (*num_modes)--;
4094 return modes; /* Could not add 802.11b mode */
4095 }
4096
4097 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 4098 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
4099 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 4100 continue;
4101 mode->rates[mode->num_rates] = mode11g->rates[i];
4102 mode->num_rates++;
4103 if (mode->num_rates == 4)
4104 break;
4105 }
4106
4107 if (mode->num_rates == 0) {
4108 os_free(mode->channels);
4109 os_free(mode->rates);
4110 (*num_modes)--;
4111 return modes; /* No 802.11b rates */
4112 }
4113
4114 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
4115 "information");
4116
4117 return modes;
4118}
4119
4120
d8e66e80
JM		 4121static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
4122 int end)
4123{
4124 int c;
4125
4126 for (c = 0; c < mode->num_channels; c++) {
4127 struct hostapd_channel_data *chan = &mode->channels[c];
4128 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
4129 chan->flag |= HOSTAPD_CHAN_HT40;
4130 }
4131}
4132
4133
4134static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
4135 int end)
4136{
4137 int c;
4138
4139 for (c = 0; c < mode->num_channels; c++) {
4140 struct hostapd_channel_data *chan = &mode->channels[c];
4141 if (!(chan->flag & HOSTAPD_CHAN_HT40))
4142 continue;
4143 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
4144 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
4145 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
4146 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
4147 }
4148}
4149
4150
4151static void nl80211_reg_rule_ht40(struct nlattr *tb[],
4152 struct phy_info_arg *results)
4153{
4154 u32 start, end, max_bw;
4155 u16 m;
4156
4157 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
4158 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
4159 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
4160 return;
4161
4162 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
4163 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
4164 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
4165
4166 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
4167 start, end, max_bw);
4168 if (max_bw < 40)
4169 return;
4170
4171 for (m = 0; m < *results->num_modes; m++) {
4172 if (!(results->modes[m].ht_capab &
4173 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
4174 continue;
4175 nl80211_set_ht40_mode(&results->modes[m], start, end);
4176 }
4177}
4178
4179
4180static void nl80211_reg_rule_sec(struct nlattr *tb[],
4181 struct phy_info_arg *results)
4182{
4183 u32 start, end, max_bw;
4184 u16 m;
4185
4186 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
4187 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
4188 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
4189 return;
4190
4191 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
4192 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
4193 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
4194
4195 if (max_bw < 20)
4196 return;
4197
4198 for (m = 0; m < *results->num_modes; m++) {
4199 if (!(results->modes[m].ht_capab &
4200 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
4201 continue;
4202 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
4203 }
4204}
4205
4206
4207static int nl80211_get_reg(struct nl_msg *msg, void *arg)
4208{
4209 struct phy_info_arg *results = arg;
4210 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4211 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4212 struct nlattr *nl_rule;
4213 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
4214 int rem_rule;
4215 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4216 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4217 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4218 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4219 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4220 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4221 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4222 };
4223
4224 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4225 genlmsg_attrlen(gnlh, 0), NULL);
4226 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
4227 !tb_msg[NL80211_ATTR_REG_RULES]) {
4228 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
4229 "available");
4230 return NL_SKIP;
4231 }
4232
4233 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
4234 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
4235
4236 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
4237 {
4238 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
4239 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
4240 nl80211_reg_rule_ht40(tb_rule, results);
4241 }
4242
4243 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
4244 {
4245 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
4246 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
4247 nl80211_reg_rule_sec(tb_rule, results);
4248 }
4249
4250 return NL_SKIP;
4251}
4252
4253
4254static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
4255 struct phy_info_arg *results)
4256{
4257 struct nl_msg *msg;
4258
4259 msg = nlmsg_alloc();
4260 if (!msg)
4261 return -ENOMEM;
4262
9fb04070 4263 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 4264 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
4265}
4266
4267
282d5590
JM		 4268static struct hostapd_hw_modes *
4269wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
4270{
a2e40bb6
FF		 4271 struct i802_bss *bss = priv;
4272 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 4273 struct nl_msg *msg;
4274 struct phy_info_arg result = {
4275 .num_modes = num_modes,
4276 .modes = NULL,
4277 };
4278
4279 *num_modes = 0;
4280 *flags = 0;
4281
4282 msg = nlmsg_alloc();
4283 if (!msg)
4284 return NULL;
4285
9fb04070 4286 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590
JM		 4287
4288 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4289
d8e66e80
JM		 4290 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
4291 nl80211_set_ht40_flags(drv, &result);
282d5590 4292 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 4293 }
282d5590
JM		 4294 nla_put_failure:
4295 return NULL;
4296}
4297
4298
2c2010ac
JM		 4299static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
4300 const void *data, size_t len,
fab25336 4301 int encrypt, int noack)
2c2010ac
JM		 4302{
4303 __u8 rtap_hdr[] = {
4304 0x00, 0x00, /* radiotap version */
4305 0x0e, 0x00, /* radiotap length */
4306 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
4307 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
4308 0x00, /* padding */
4309 0x00, 0x00, /* RX and TX flags to indicate that */
4310 0x00, 0x00, /* this is the injected frame directly */
4311 };
4312 struct iovec iov[2] = {
4313 {
4314 .iov_base = &rtap_hdr,
4315 .iov_len = sizeof(rtap_hdr),
4316 },
4317 {
4318 .iov_base = (void *) data,
4319 .iov_len = len,
4320 }
4321 };
4322 struct msghdr msg = {
4323 .msg_name = NULL,
4324 .msg_namelen = 0,
4325 .msg_iov = iov,
4326 .msg_iovlen = 2,
4327 .msg_control = NULL,
4328 .msg_controllen = 0,
4329 .msg_flags = 0,
4330 };
ebbec8b2 4331 int res;
fab25336 4332 u16 txflags = 0;
2c2010ac
JM		 4333
4334 if (encrypt)
4335 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
4336
866af8b6
JM		 4337 if (drv->monitor_sock < 0) {
4338 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
4339 "for %s", __func__);
4340 return -1;
4341 }
4342
fab25336
HS		 4343 if (noack)
4344 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
4345 *(le16 *) &rtap_hdr[12] = host_to_le16(txflags);
4346
ebbec8b2
JM		 4347 res = sendmsg(drv->monitor_sock, &msg, 0);
4348 if (res < 0) {
4349 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
4350 return -1;
4351 }
4352 return 0;
2c2010ac
JM		 4353}
4354
4355
4356static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
8cfa3527 4357 size_t data_len, int noack)
2c2010ac 4358{
a2e40bb6
FF		 4359 struct i802_bss *bss = priv;
4360 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 4361 struct ieee80211_mgmt *mgmt;
7a47d567 4362 int encrypt = 1;
2c2010ac
JM		 4363 u16 fc;
4364
4365 mgmt = (struct ieee80211_mgmt *) data;
4366 fc = le_to_host16(mgmt->frame_control);
4367
b1f625e0 4368 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 4369 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4370 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
4371 /*
4372 * The use of last_mgmt_freq is a bit of a hack,
4373 * but it works due to the single-threaded nature
4374 * of wpa_supplicant.
4375 */
88df0ef7
JB		 4376 return nl80211_send_frame_cmd(bss, drv->last_mgmt_freq, 0,
4377 data, data_len, NULL, 1, noack,
4378 1);
5582a5d1
JB		 4379 }
4380
61cbe2ff 4381 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
e4fb2167
JB		 4382 return nl80211_send_frame_cmd(bss, bss->freq, 0,
4383 data, data_len, NULL,
4384 0, noack, 0);
86957e62
JM		 4385 }
4386
2c2010ac
JM		 4387 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4388 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
4389 /*
4390 * Only one of the authentication frame types is encrypted.
4391 * In order for static WEP encryption to work properly (i.e.,
4392 * to not encrypt the frame), we need to tell mac80211 about
4393 * the frames that must not be encrypted.
4394 */
4395 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
4396 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 4397 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
4398 encrypt = 0;
2c2010ac
JM		 4399 }
4400
fab25336
HS		 4401 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt,
4402 noack);
2c2010ac
JM		 4403}
4404
4405
31357268 4406static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 4407 int slot, int ht_opmode, int ap_isolate,
4408 int *basic_rates)
31357268
JM		 4409{
4410 struct wpa_driver_nl80211_data *drv = bss->drv;
4411 struct nl_msg *msg;
4412
4413 msg = nlmsg_alloc();
4414 if (!msg)
4415 return -ENOMEM;
4416
9fb04070 4417 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 4418
4419 if (cts >= 0)
4420 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4421 if (preamble >= 0)
4422 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4423 if (slot >= 0)
4424 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4425 if (ht_opmode >= 0)
4426 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 4427 if (ap_isolate >= 0)
4428 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 4429
4430 if (basic_rates) {
4431 u8 rates[NL80211_MAX_SUPP_RATES];
4432 u8 rates_len = 0;
4433 int i;
4434
4435 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
4436 i++)
4437 rates[rates_len++] = basic_rates[i] / 5;
4438
4439 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
4440 }
4441
31357268
JM		 4442 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4443
4444 return send_and_recv_msgs(drv, msg, NULL, NULL);
4445 nla_put_failure:
4446 return -ENOBUFS;
4447}
4448
4449
19c3b566
JM		 4450static int wpa_driver_nl80211_set_ap(void *priv,
4451 struct wpa_driver_ap_params *params)
d2440ba0 4452{
a2e40bb6
FF		 4453 struct i802_bss *bss = priv;
4454 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 4455 struct nl_msg *msg;
4456 u8 cmd = NL80211_CMD_NEW_BEACON;
4457 int ret;
b4fd6fab 4458 int beacon_set;
8b897f5a 4459 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 4460 int num_suites;
4461 u32 suites[10];
4462 u32 ver;
b4fd6fab 4463
b4fd6fab 4464 beacon_set = bss->beacon_set;
d2440ba0
JM		 4465
4466 msg = nlmsg_alloc();
4467 if (!msg)
4468 return -ENOMEM;
4469
4470 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 4471 beacon_set);
4472 if (beacon_set)
d2440ba0
JM		 4473 cmd = NL80211_CMD_SET_BEACON;
4474
9fb04070 4475 nl80211_cmd(drv, msg, 0, cmd);
19c3b566
JM		 4476 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
4477 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 4478 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 4479 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
4480 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 4481 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4482 params->ssid);
97a7a0b5
JM		 4483 switch (params->hide_ssid) {
4484 case NO_SSID_HIDING:
4485 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4486 NL80211_HIDDEN_SSID_NOT_IN_USE);
4487 break;
4488 case HIDDEN_SSID_ZERO_LEN:
4489 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4490 NL80211_HIDDEN_SSID_ZERO_LEN);
4491 break;
4492 case HIDDEN_SSID_ZERO_CONTENTS:
4493 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4494 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
4495 break;
4496 }
b11d1d64
JM		 4497 if (params->privacy)
4498 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4499 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
4500 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
4501 /* Leave out the attribute */
4502 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
4503 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4504 NL80211_AUTHTYPE_SHARED_KEY);
4505 else
4506 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4507 NL80211_AUTHTYPE_OPEN_SYSTEM);
4508
4509 ver = 0;
4510 if (params->wpa_version & WPA_PROTO_WPA)
4511 ver |= NL80211_WPA_VERSION_1;
4512 if (params->wpa_version & WPA_PROTO_RSN)
4513 ver |= NL80211_WPA_VERSION_2;
4514 if (ver)
4515 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
4516
4517 num_suites = 0;
4518 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
4519 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
4520 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
4521 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
4522 if (num_suites) {
4523 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
4524 num_suites * sizeof(u32), suites);
4525 }
4526
4527 num_suites = 0;
4528 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
4529 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
4530 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
4531 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
4532 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
4533 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
4534 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
4535 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
4536 if (num_suites) {
4537 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4538 num_suites * sizeof(u32), suites);
4539 }
4540
4541 switch (params->group_cipher) {
4542 case WPA_CIPHER_CCMP:
4543 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4544 WLAN_CIPHER_SUITE_CCMP);
4545 break;
4546 case WPA_CIPHER_TKIP:
4547 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4548 WLAN_CIPHER_SUITE_TKIP);
4549 break;
4550 case WPA_CIPHER_WEP104:
4551 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4552 WLAN_CIPHER_SUITE_WEP104);
4553 break;
4554 case WPA_CIPHER_WEP40:
4555 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4556 WLAN_CIPHER_SUITE_WEP40);
4557 break;
4558 }
d2440ba0 4559
fb91db56
JM		 4560 if (params->beacon_ies) {
4561 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
4562 wpabuf_head(params->beacon_ies));
4563 }
4564 if (params->proberesp_ies) {
4565 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
4566 wpabuf_len(params->proberesp_ies),
4567 wpabuf_head(params->proberesp_ies));
4568 }
4569 if (params->assocresp_ies) {
4570 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
4571 wpabuf_len(params->assocresp_ies),
4572 wpabuf_head(params->assocresp_ies));
4573 }
4574
d2440ba0
JM		 4575 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4576 if (ret) {
4577 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
4578 ret, strerror(-ret));
b4fd6fab 4579 } else {
b4fd6fab 4580 bss->beacon_set = 1;
31357268 4581 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 4582 params->short_slot_time, params->ht_opmode,
e5693c47 4583 params->isolate, params->basic_rates);
b4fd6fab 4584 }
d2440ba0
JM		 4585 return ret;
4586 nla_put_failure:
4587 return -ENOBUFS;
4588}
4589
4590
e4fb2167 4591static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
f019981a
JM		 4592 int freq, int ht_enabled,
4593 int sec_channel_offset)
1581b38b 4594{
e4fb2167 4595 struct wpa_driver_nl80211_data *drv = bss->drv;
1581b38b 4596 struct nl_msg *msg;
d2440ba0 4597 int ret;
1581b38b 4598
44dc872e
JM		 4599 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
4600 "sec_channel_offset=%d)",
4601 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 4602 msg = nlmsg_alloc();
4603 if (!msg)
4604 return -1;
4605
9fb04070 4606 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 4607
4608 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 4609 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4610 if (ht_enabled) {
4611 switch (sec_channel_offset) {
4612 case -1:
4613 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4614 NL80211_CHAN_HT40MINUS);
4615 break;
4616 case 1:
4617 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4618 NL80211_CHAN_HT40PLUS);
4619 break;
4620 default:
4621 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4622 NL80211_CHAN_HT20);
4623 break;
4624 }
4625 }
1581b38b 4626
d2440ba0 4627 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
e4fb2167
JB		 4628 if (ret == 0) {
4629 bss->freq = freq;
1581b38b 4630 return 0;
e4fb2167 4631 }
f019981a
JM		 4632 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
4633 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 4634nla_put_failure:
4635 return -1;
4636}
4637
0f4e8b4f 4638
95ab6063
AN		 4639static u32 sta_flags_nl80211(int flags)
4640{
4641 u32 f = 0;
4642
4643 if (flags & WPA_STA_AUTHORIZED)
4644 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
4645 if (flags & WPA_STA_WMM)
4646 f |= BIT(NL80211_STA_FLAG_WME);
4647 if (flags & WPA_STA_SHORT_PREAMBLE)
4648 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
4649 if (flags & WPA_STA_MFP)
4650 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 4651 if (flags & WPA_STA_TDLS_PEER)
4652 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 4653
4654 return f;
4655}
4656
4657
62847751 4658static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 4659 struct hostapd_sta_add_params *params)
4660{
a2e40bb6
FF		 4661 struct i802_bss *bss = priv;
4662 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f 4663 struct nl_msg *msg;
95ab6063 4664 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 4665 int ret = -ENOBUFS;
4666
45b722f1
AN		 4667 if ((params->flags & WPA_STA_TDLS_PEER) &&
4668 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
4669 return -EOPNOTSUPP;
4670
0f4e8b4f
JM		 4671 msg = nlmsg_alloc();
4672 if (!msg)
4673 return -ENOMEM;
4674
45b722f1
AN		 4675 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
4676 NL80211_CMD_NEW_STATION);
0f4e8b4f 4677
62847751 4678 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 4679 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 4680 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
4681 params->supp_rates);
45b722f1
AN		 4682 if (!params->set) {
4683 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
4684 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4685 params->listen_interval);
4686 }
0f4e8b4f
JM		 4687 if (params->ht_capabilities) {
4688 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 4689 sizeof(*params->ht_capabilities),
4690 params->ht_capabilities);
0f4e8b4f 4691 }
0f4e8b4f 4692
95ab6063
AN		 4693 os_memset(&upd, 0, sizeof(upd));
4694 upd.mask = sta_flags_nl80211(params->flags);
4695 upd.set = upd.mask;
4696 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4697
0f4e8b4f
JM		 4698 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4699 if (ret)
45b722f1
AN		 4700 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
4701 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
4702 strerror(-ret));
0f4e8b4f
JM		 4703 if (ret == -EEXIST)
4704 ret = 0;
4705 nla_put_failure:
4706 return ret;
4707}
4708
4709
4710static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
4711{
a2e40bb6
FF		 4712 struct i802_bss *bss = priv;
4713 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 4714 struct nl_msg *msg;
4715 int ret;
4716
4717 msg = nlmsg_alloc();
4718 if (!msg)
4719 return -ENOMEM;
4720
9fb04070 4721 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 4722
4723 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 4724 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4725 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4726
4727 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4728 if (ret == -ENOENT)
4729 return 0;
4730 return ret;
4731 nla_put_failure:
4732 return -ENOBUFS;
4733}
4734
1581b38b 4735
0915d02c
JM		 4736static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
4737 int ifidx)
4738{
4739 struct nl_msg *msg;
4740
c6e8e8e4
JM		 4741 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
4742
2135f224
JM		 4743 /* stop listening for EAPOL on this interface */
4744 del_ifidx(drv, ifidx);
2135f224 4745
0915d02c
JM		 4746 msg = nlmsg_alloc();
4747 if (!msg)
4748 goto nla_put_failure;
4749
9fb04070 4750 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 4751 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
4752
4753 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4754 return;
4755 nla_put_failure:
e748062b 4756 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 4757}
4758
4759
a1922f93
JM		 4760static const char * nl80211_iftype_str(enum nl80211_iftype mode)
4761{
4762 switch (mode) {
4763 case NL80211_IFTYPE_ADHOC:
4764 return "ADHOC";
4765 case NL80211_IFTYPE_STATION:
4766 return "STATION";
4767 case NL80211_IFTYPE_AP:
4768 return "AP";
4769 case NL80211_IFTYPE_MONITOR:
4770 return "MONITOR";
4771 case NL80211_IFTYPE_P2P_CLIENT:
4772 return "P2P_CLIENT";
4773 case NL80211_IFTYPE_P2P_GO:
4774 return "P2P_GO";
4775 default:
4776 return "unknown";
4777 }
4778}
4779
4780
a35187e7
KH		 4781static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
4782 const char *ifname,
4783 enum nl80211_iftype iftype,
fbbfcbac 4784 const u8 *addr, int wds)
0915d02c
JM		 4785{
4786 struct nl_msg *msg, *flags = NULL;
4787 int ifidx;
4788 int ret = -ENOBUFS;
4789
a1922f93
JM		 4790 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4791 iftype, nl80211_iftype_str(iftype));
4792
0915d02c
JM		 4793 msg = nlmsg_alloc();
4794 if (!msg)
4795 return -1;
4796
9fb04070 4797 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 4798 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4799 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
4800 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
4801
4802 if (iftype == NL80211_IFTYPE_MONITOR) {
4803 int err;
4804
4805 flags = nlmsg_alloc();
4806 if (!flags)
4807 goto nla_put_failure;
4808
4809 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
4810
4811 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
4812
4813 nlmsg_free(flags);
4814
4815 if (err)
4816 goto nla_put_failure;
fbbfcbac
FF		 4817 } else if (wds) {
4818 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 4819 }
4820
4821 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4822 if (ret) {
4823 nla_put_failure:
a35187e7
KH		 4824 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4825 ifname, ret, strerror(-ret));
0915d02c
JM		 4826 return ret;
4827 }
4828
4829 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 4830 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4831 ifname, ifidx);
0915d02c
JM		 4832
4833 if (ifidx <= 0)
4834 return -1;
4835
2135f224
JM		 4836 /* start listening for EAPOL on this interface */
4837 add_ifidx(drv, ifidx);
4838
7bfc47c3 4839 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 4840 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 4841 nl80211_remove_iface(drv, ifidx);
4842 return -1;
2135f224 4843 }
2135f224 4844
0915d02c
JM		 4845 return ifidx;
4846}
22a7c9d7
JM		 4847
4848
a35187e7
KH		 4849static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
4850 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 4851 const u8 *addr, int wds)
a35187e7
KH		 4852{
4853 int ret;
4854
fbbfcbac 4855 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 4856
ffbf1eaa 4857 /* if error occurred and interface exists already */
a35187e7
KH		 4858 if (ret == -ENFILE && if_nametoindex(ifname)) {
4859 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
4860
4861 /* Try to remove the interface that was already there. */
4862 nl80211_remove_iface(drv, if_nametoindex(ifname));
4863
4864 /* Try to create the interface again */
fbbfcbac
FF		 4865 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
4866 wds);
a35187e7
KH		 4867 }
4868
b3af99d2 4869 if (ret >= 0 && is_p2p_interface(iftype))
4e5cb1a3
JM		 4870 nl80211_disable_11b_rates(drv, ret, 1);
4871
a35187e7
KH		 4872 return ret;
4873}
0915d02c 4874
2135f224 4875
0915d02c
JM		 4876static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
4877{
4878 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4879 u16 fc;
4880 union wpa_event_data event;
0915d02c
JM		 4881
4882 hdr = (struct ieee80211_hdr *) buf;
4883 fc = le_to_host16(hdr->frame_control);
4884
f8b1f695
JM		 4885 os_memset(&event, 0, sizeof(event));
4886 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
4887 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
4888 event.tx_status.dst = hdr->addr1;
4889 event.tx_status.data = buf;
4890 event.tx_status.data_len = len;
4891 event.tx_status.ack = ok;
4892 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 4893}
4894
4895
4b9841d3 4896static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 4897 u8 *buf, size_t len)
0915d02c 4898{
9b90955e
JB		 4899 struct ieee80211_hdr *hdr = (void *)buf;
4900 u16 fc;
f8b1f695 4901 union wpa_event_data event;
9b90955e
JB		 4902
4903 if (len < sizeof(*hdr))
4904 return;
4905
4906 fc = le_to_host16(hdr->frame_control);
4907
f8b1f695 4908 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 4909 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
4910 event.rx_from_unknown.addr = hdr->addr2;
4911 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
4912 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 4913 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 4914}
0915d02c 4915
4b9841d3
JM		 4916
4917static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 4918 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 4919{
4920 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4921 u16 fc;
4922 union wpa_event_data event;
0915d02c
JM		 4923
4924 hdr = (struct ieee80211_hdr *) buf;
4925 fc = le_to_host16(hdr->frame_control);
0915d02c 4926
4b9841d3 4927 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 4928 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 4929 os_memset(&event, 0, sizeof(event));
4930 event.rx_mgmt.frame = buf;
4931 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 4932 event.rx_mgmt.datarate = datarate;
4933 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 4934 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 4935 break;
4936 case WLAN_FC_TYPE_CTRL:
4937 /* can only get here with PS-Poll frames */
4938 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 4939 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4940 break;
4941 case WLAN_FC_TYPE_DATA:
0d9fc3d8 4942 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4943 break;
4944 }
4945}
4946
4947
4948static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
4949{
4950 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4951 int len;
4952 unsigned char buf[3000];
4953 struct ieee80211_radiotap_iterator iter;
4954 int ret;
2a8b7416 4955 int datarate = 0, ssi_signal = 0;
4b9841d3 4956 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 4957
4958 len = recv(sock, buf, sizeof(buf), 0);
4959 if (len < 0) {
4960 perror("recv");
4961 return;
4962 }
4963
4964 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
4965 printf("received invalid radiotap frame\n");
4966 return;
4967 }
4968
0915d02c
JM		 4969 while (1) {
4970 ret = ieee80211_radiotap_iterator_next(&iter);
4971 if (ret == -ENOENT)
4972 break;
4973 if (ret) {
4974 printf("received invalid radiotap frame (%d)\n", ret);
4975 return;
4976 }
4977 switch (iter.this_arg_index) {
4978 case IEEE80211_RADIOTAP_FLAGS:
4979 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
4980 len -= 4;
4981 break;
4982 case IEEE80211_RADIOTAP_RX_FLAGS:
4983 rxflags = 1;
4984 break;
4985 case IEEE80211_RADIOTAP_TX_FLAGS:
4986 injected = 1;
4987 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
4988 IEEE80211_RADIOTAP_F_TX_FAIL;
4989 break;
4990 case IEEE80211_RADIOTAP_DATA_RETRIES:
4991 break;
4992 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 4993 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 4994 break;
4995 case IEEE80211_RADIOTAP_RATE:
2a8b7416 4996 datarate = *iter.this_arg * 5;
0915d02c
JM		 4997 break;
4998 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 4999 ssi_signal = *iter.this_arg;
0915d02c
JM		 5000 break;
5001 }
5002 }
5003
5004 if (rxflags && injected)
5005 return;
5006
5007 if (!injected)
4b9841d3 5008 handle_frame(drv, buf + iter.max_length,
2a8b7416 5009 len - iter.max_length, datarate, ssi_signal);
0915d02c 5010 else
4b9841d3
JM		 5011 handle_tx_callback(drv->ctx, buf + iter.max_length,
5012 len - iter.max_length, !failed);
0915d02c
JM		 5013}
5014
5015
5016/*
5017 * we post-process the filter code later and rewrite
5018 * this to the offset to the last instruction
5019 */
5020#define PASS 0xFF
5021#define FAIL 0xFE
5022
5023static struct sock_filter msock_filter_insns[] = {
5024 /*
5025 * do a little-endian load of the radiotap length field
5026 */
5027 /* load lower byte into A */
5028 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
5029 /* put it into X (== index register) */
5030 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5031 /* load upper byte into A */
5032 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
5033 /* left-shift it by 8 */
5034 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
5035 /* or with X */
5036 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
5037 /* put result into X */
5038 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5039
5040 /*
5041 * Allow management frames through, this also gives us those
5042 * management frames that we sent ourselves with status
5043 */
5044 /* load the lower byte of the IEEE 802.11 frame control field */
5045 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5046 /* mask off frame type and version */
5047 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
5048 /* accept frame if it's both 0, fall through otherwise */
5049 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
5050
5051 /*
5052 * TODO: add a bit to radiotap RX flags that indicates
5053 * that the sending station is not associated, then
5054 * add a filter here that filters on our DA and that flag
5055 * to allow us to deauth frames to that bad station.
5056 *
65ae1afd 5057 * For now allow all To DS data frames through.
0915d02c 5058 */
65ae1afd
HS		 5059 /* load the IEEE 802.11 frame control field */
5060 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
5061 /* mask off frame type, version and DS status */
5062 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
5063 /* accept frame if version 0, type 2 and To DS, fall through otherwise
5064 */
5065 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 5066
5067#if 0
5068 /*
fbbfcbac 5069 * drop non-data frames
0915d02c
JM		 5070 */
5071 /* load the lower byte of the frame control field */
5072 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5073 /* mask off QoS bit */
5074 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
5075 /* drop non-data frames */
5076 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 5077#endif
0915d02c 5078 /* load the upper byte of the frame control field */
fbbfcbac 5079 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 5080 /* mask off toDS/fromDS */
5081 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 5082 /* accept WDS frames */
5083 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 5084
5085 /*
5086 * add header length to index
5087 */
5088 /* load the lower byte of the frame control field */
5089 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5090 /* mask off QoS bit */
5091 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
5092 /* right shift it by 6 to give 0 or 2 */
5093 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
5094 /* add data frame header length */
5095 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
5096 /* add index, was start of 802.11 header */
5097 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
5098 /* move to index, now start of LL header */
5099 BPF_STMT(BPF_MISC | BPF_TAX, 0),
5100
5101 /*
5102 * Accept empty data frames, we use those for
5103 * polling activity.
5104 */
5105 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
5106 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
5107
5108 /*
5109 * Accept EAPOL frames
5110 */
5111 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
5112 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
5113 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
5114 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
5115
5116 /* keep these last two statements or change the code below */
5117 /* return 0 == "DROP" */
5118 BPF_STMT(BPF_RET | BPF_K, 0),
5119 /* return ~0 == "keep all" */
5120 BPF_STMT(BPF_RET | BPF_K, ~0),
5121};
5122
5123static struct sock_fprog msock_filter = {
5124 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
5125 .filter = msock_filter_insns,
5126};
5127
5128
5129static int add_monitor_filter(int s)
5130{
5131 int idx;
5132
5133 /* rewrite all PASS/FAIL jump offsets */
5134 for (idx = 0; idx < msock_filter.len; idx++) {
5135 struct sock_filter *insn = &msock_filter_insns[idx];
5136
5137 if (BPF_CLASS(insn->code) == BPF_JMP) {
5138 if (insn->code == (BPF_JMP|BPF_JA)) {
5139 if (insn->k == PASS)
5140 insn->k = msock_filter.len - idx - 2;
5141 else if (insn->k == FAIL)
5142 insn->k = msock_filter.len - idx - 3;
5143 }
5144
5145 if (insn->jt == PASS)
5146 insn->jt = msock_filter.len - idx - 2;
5147 else if (insn->jt == FAIL)
5148 insn->jt = msock_filter.len - idx - 3;
5149
5150 if (insn->jf == PASS)
5151 insn->jf = msock_filter.len - idx - 2;
5152 else if (insn->jf == FAIL)
5153 insn->jf = msock_filter.len - idx - 3;
5154 }
5155 }
5156
5157 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
5158 &msock_filter, sizeof(msock_filter))) {
5159 perror("SO_ATTACH_FILTER");
5160 return -1;
5161 }
5162
5163 return 0;
5164}
5165
5166
460456f8
JM		 5167static void nl80211_remove_monitor_interface(
5168 struct wpa_driver_nl80211_data *drv)
5169{
3fd1cefb
JB		 5170 drv->monitor_refcount--;
5171 if (drv->monitor_refcount > 0)
5172 return;
5173
460456f8
JM		 5174 if (drv->monitor_ifidx >= 0) {
5175 nl80211_remove_iface(drv, drv->monitor_ifidx);
5176 drv->monitor_ifidx = -1;
5177 }
504e905c
JM		 5178 if (drv->monitor_sock >= 0) {
5179 eloop_unregister_read_sock(drv->monitor_sock);
5180 close(drv->monitor_sock);
5181 drv->monitor_sock = -1;
5182 }
460456f8
JM		 5183}
5184
5185
0915d02c
JM		 5186static int
5187nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
5188{
5189 char buf[IFNAMSIZ];
5190 struct sockaddr_ll ll;
5191 int optval;
5192 socklen_t optlen;
0915d02c 5193
3fd1cefb
JB		 5194 if (drv->monitor_ifidx >= 0) {
5195 drv->monitor_refcount++;
5196 return 0;
5197 }
5198
6758b167
JJ		 5199 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
5200 /*
5201 * P2P interface name is of the format p2p-%s-%d. For monitor
5202 * interface name corresponding to P2P GO, replace "p2p-" with
5203 * "mon-" to retain the same interface name length and to
5204 * indicate that it is a monitor interface.
5205 */
5206 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
5207 } else {
5208 /* Non-P2P interface with AP functionality. */
5209 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
5210 }
5211
0915d02c
JM		 5212 buf[IFNAMSIZ - 1] = '\0';
5213
5214 drv->monitor_ifidx =
fbbfcbac
FF		 5215 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
5216 0);
0915d02c 5217
866af8b6 5218 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 5219 /*
5220 * This is backward compatibility for a few versions of
5221 * the kernel only that didn't advertise the right
5222 * attributes for the only driver that then supported
5223 * AP mode w/o monitor -- ath6kl.
5224 */
866af8b6
JM		 5225 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
5226 "monitor interface type - try to run without it");
61cbe2ff 5227 drv->device_ap_sme = 1;
866af8b6
JM		 5228 }
5229
0915d02c
JM		 5230 if (drv->monitor_ifidx < 0)
5231 return -1;
5232
c81eff1a 5233 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 5234 goto error;
0915d02c
JM		 5235
5236 memset(&ll, 0, sizeof(ll));
5237 ll.sll_family = AF_PACKET;
5238 ll.sll_ifindex = drv->monitor_ifidx;
5239 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
5240 if (drv->monitor_sock < 0) {
5241 perror("socket[PF_PACKET,SOCK_RAW]");
5242 goto error;
5243 }
5244
5245 if (add_monitor_filter(drv->monitor_sock)) {
5246 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
5247 "interface; do filtering in user space");
5248 /* This works, but will cost in performance. */
5249 }
5250
2135f224 5251 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 5252 perror("monitor socket bind");
5253 goto error;
5254 }
5255
5256 optlen = sizeof(optval);
5257 optval = 20;
5258 if (setsockopt
5259 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
5260 perror("Failed to set socket priority");
5261 goto error;
5262 }
5263
5264 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
5265 drv, NULL)) {
5266 printf("Could not register monitor read socket\n");
5267 goto error;
5268 }
5269
5270 return 0;
5271 error:
460456f8 5272 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 5273 return -1;
5274}
5275
db149ac9 5276
3fd1cefb
JB		 5277static int nl80211_setup_ap(struct i802_bss *bss)
5278{
5279 struct wpa_driver_nl80211_data *drv = bss->drv;
5280
5281 if (!drv->device_ap_sme &&
5282 nl80211_create_monitor_interface(drv) &&
5283 !drv->device_ap_sme)
5284 return -1;
5285
5286 if (drv->device_ap_sme &&
5287 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
5288 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5289 "Probe Request frame reporting in AP mode");
5290 /* Try to survive without this */
5291 }
5292
5293 return 0;
5294}
5295
5296
5297static void nl80211_teardown_ap(struct i802_bss *bss)
5298{
5299 struct wpa_driver_nl80211_data *drv = bss->drv;
5300
5301 if (drv->device_ap_sme)
5302 wpa_driver_nl80211_probe_req_report(bss, 0);
5303 else
5304 nl80211_remove_monitor_interface(drv);
5305 bss->beacon_set = 0;
5306}
5307
5308
f10bfc9a
JM		 5309static int nl80211_send_eapol_data(struct i802_bss *bss,
5310 const u8 *addr, const u8 *data,
d12dab4c 5311 size_t data_len)
f10bfc9a 5312{
d12dab4c
JB		 5313 struct sockaddr_ll ll;
5314 int ret;
5315
5316 if (bss->drv->eapol_tx_sock < 0) {
5317 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 5318 return -1;
5319 }
5320
d12dab4c
JB		 5321 os_memset(&ll, 0, sizeof(ll));
5322 ll.sll_family = AF_PACKET;
5323 ll.sll_ifindex = bss->ifindex;
5324 ll.sll_protocol = htons(ETH_P_PAE);
5325 ll.sll_halen = ETH_ALEN;
5326 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
5327 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
5328 (struct sockaddr *) &ll, sizeof(ll));
5329 if (ret < 0)
5330 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
5331 strerror(errno));
5332
5333 return ret;
f10bfc9a 5334}
5fb1a232 5335
f10bfc9a 5336
db149ac9
JM		 5337static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
5338
5339static int wpa_driver_nl80211_hapd_send_eapol(
5340 void *priv, const u8 *addr, const u8 *data,
4378fc14 5341 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 5342{
a2e40bb6
FF		 5343 struct i802_bss *bss = priv;
5344 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 5345 struct ieee80211_hdr *hdr;
5346 size_t len;
5347 u8 *pos;
5348 int res;
4378fc14 5349 int qos = flags & WPA_STA_WMM;
db149ac9 5350
32ab4855 5351 if (drv->device_ap_sme || drv->data_tx_status)
d12dab4c 5352 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 5353
db149ac9
JM		 5354 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
5355 data_len;
5356 hdr = os_zalloc(len);
5357 if (hdr == NULL) {
5358 printf("malloc() failed for i802_send_data(len=%lu)\n",
5359 (unsigned long) len);
5360 return -1;
5361 }
5362
5363 hdr->frame_control =
5364 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
5365 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
5366 if (encrypt)
5367 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 5368 if (qos) {
5369 hdr->frame_control |=
5370 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
5371 }
db149ac9
JM		 5372
5373 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
5374 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
5375 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
5376 pos = (u8 *) (hdr + 1);
5377
db149ac9
JM		 5378 if (qos) {
5379 /* add an empty QoS header if needed */
5380 pos[0] = 0;
5381 pos[1] = 0;
5382 pos += 2;
5383 }
db149ac9
JM		 5384
5385 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
5386 pos += sizeof(rfc1042_header);
5387 WPA_PUT_BE16(pos, ETH_P_PAE);
5388 pos += 2;
5389 memcpy(pos, data, data_len);
5390
fab25336 5391 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt, 0);
db149ac9
JM		 5392 if (res < 0) {
5393 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
5394 "failed: %d (%s)",
5395 (unsigned long) len, errno, strerror(errno));
5396 }
7bf12757 5397 os_free(hdr);
db149ac9
JM		 5398
5399 return res;
5400}
5401
a8d6ffa4 5402
3234cba4
JM		 5403static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
5404 int total_flags,
4c32757d 5405 int flags_or, int flags_and)
a8d6ffa4 5406{
a2e40bb6
FF		 5407 struct i802_bss *bss = priv;
5408 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 5409 struct nl_msg *msg, *flags = NULL;
7e76ee9c 5410 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 5411
5412 msg = nlmsg_alloc();
5413 if (!msg)
5414 return -ENOMEM;
5415
5416 flags = nlmsg_alloc();
5417 if (!flags) {
5418 nlmsg_free(msg);
5419 return -ENOMEM;
5420 }
5421
9fb04070 5422 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 5423
5424 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 5425 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 5426 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5427
7e76ee9c
JM		 5428 /*
5429 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
5430 * can be removed eventually.
5431 */
0de39516 5432 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 5433 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
5434
0de39516 5435 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 5436 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
5437
0de39516 5438 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 5439 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
5440
0de39516 5441 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 5442 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
5443
45b722f1
AN		 5444 if (total_flags & WPA_STA_TDLS_PEER)
5445 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER);
5446
a8d6ffa4
JM		 5447 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
5448 goto nla_put_failure;
5449
7e76ee9c
JM		 5450 os_memset(&upd, 0, sizeof(upd));
5451 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
5452 upd.set = sta_flags_nl80211(flags_or);
5453 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5454
a8d6ffa4
JM		 5455 nlmsg_free(flags);
5456
5457 return send_and_recv_msgs(drv, msg, NULL, NULL);
5458 nla_put_failure:
5459 nlmsg_free(flags);
5460 return -ENOBUFS;
5461}
5462
0915d02c 5463
1581b38b
JM		 5464static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
5465 struct wpa_driver_associate_params *params)
5466{
b1f625e0
EP		 5467 enum nl80211_iftype nlmode;
5468
5469 if (params->p2p) {
046b26a2
JM		 5470 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
5471 "group (GO)");
b1f625e0
EP		 5472 nlmode = NL80211_IFTYPE_P2P_GO;
5473 } else
5474 nlmode = NL80211_IFTYPE_AP;
5475
5476 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
e4fb2167 5477 wpa_driver_nl80211_set_freq(&drv->first_bss, params->freq, 0, 0)) {
460456f8 5478 nl80211_remove_monitor_interface(drv);
1581b38b 5479 return -1;
0915d02c 5480 }
1581b38b 5481
1581b38b
JM		 5482 return 0;
5483}
1581b38b
JM		 5484
5485
5cc4d64b
JM		 5486static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
5487{
5488 struct nl_msg *msg;
5489 int ret = -1;
5490
5491 msg = nlmsg_alloc();
5492 if (!msg)
5493 return -1;
5494
9fb04070 5495 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 5496 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5497 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5498 msg = NULL;
5499 if (ret) {
5500 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
5501 "(%s)", ret, strerror(-ret));
5502 goto nla_put_failure;
5503 }
5504
5505 ret = 0;
5506 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
5507
5508nla_put_failure:
5509 nlmsg_free(msg);
5510 return ret;
5511}
5512
5513
5514static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
5515 struct wpa_driver_associate_params *params)
5516{
5517 struct nl_msg *msg;
5518 int ret = -1;
5519 int count = 0;
5520
5521 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
5522
b1f625e0
EP		 5523 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
5524 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 5525 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5526 "IBSS mode");
5527 return -1;
5528 }
5529
5530retry:
5531 msg = nlmsg_alloc();
5532 if (!msg)
5533 return -1;
5534
9fb04070 5535 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 5536 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5537
5538 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
5539 goto nla_put_failure;
5540
5541 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5542 params->ssid, params->ssid_len);
5543 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5544 params->ssid);
5545 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5546 drv->ssid_len = params->ssid_len;
5547
5548 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5549 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5550
5551 ret = nl80211_set_conn_keys(params, msg);
5552 if (ret)
5553 goto nla_put_failure;
5554
a95795ad
JM		 5555 if (params->wpa_ie) {
5556 wpa_hexdump(MSG_DEBUG,
5557 " * Extra IEs for Beacon/Probe Response frames",
5558 params->wpa_ie, params->wpa_ie_len);
5559 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5560 params->wpa_ie);
5561 }
5562
5cc4d64b
JM		 5563 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5564 msg = NULL;
5565 if (ret) {
5566 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
5567 ret, strerror(-ret));
5568 count++;
5569 if (ret == -EALREADY && count == 1) {
5570 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
5571 "forced leave");
5572 nl80211_leave_ibss(drv);
5573 nlmsg_free(msg);
5574 goto retry;
5575 }
5576
5577 goto nla_put_failure;
5578 }
5579 ret = 0;
5580 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
5581
5582nla_put_failure:
5583 nlmsg_free(msg);
5584 return ret;
5585}
5586
5587
20f5a4c2
JM		 5588static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
5589 u8 *bssid)
5590{
5591 struct nl_msg *msg;
5592 int ret;
5593 struct nl80211_bss_info_arg arg;
5594
5595 os_memset(&arg, 0, sizeof(arg));
5596 msg = nlmsg_alloc();
5597 if (!msg)
5598 goto nla_put_failure;
5599
9fb04070 5600 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
20f5a4c2
JM		 5601 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5602
5603 arg.drv = drv;
5604 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
5605 msg = NULL;
5606 if (ret == 0) {
5607 if (is_zero_ether_addr(arg.assoc_bssid))
5608 return -ENOTCONN;
5609 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
5610 return 0;
5611 }
5612 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5613 "(%s)", ret, strerror(-ret));
5614nla_put_failure:
5615 nlmsg_free(msg);
5616 return drv->assoc_freq;
5617}
5618
5619
5620static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5621 const u8 *bssid)
5622{
5623 u8 addr[ETH_ALEN];
5624
5625 if (bssid == NULL) {
5626 int res = nl80211_get_assoc_bssid(drv, addr);
5627 if (res)
5628 return res;
5629 bssid = addr;
5630 }
5631
5632 return wpa_driver_nl80211_disconnect(drv, bssid,
5633 WLAN_REASON_PREV_AUTH_NOT_VALID);
5634}
5635
5636
cfaab580
ZY		 5637static int wpa_driver_nl80211_connect(
5638 struct wpa_driver_nl80211_data *drv,
5639 struct wpa_driver_associate_params *params)
5640{
5641 struct nl_msg *msg;
5642 enum nl80211_auth_type type;
5643 int ret = 0;
3f360238 5644 int algs;
cfaab580
ZY		 5645
5646 msg = nlmsg_alloc();
5647 if (!msg)
5648 return -1;
5649
5650 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 5651 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 5652
5653 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5654 if (params->bssid) {
5655 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5656 MAC2STR(params->bssid));
5657 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5658 }
5659 if (params->freq) {
5660 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5661 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5662 }
5663 if (params->ssid) {
5664 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5665 params->ssid, params->ssid_len);
5666 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5667 params->ssid);
5668 if (params->ssid_len > sizeof(drv->ssid))
5669 goto nla_put_failure;
5670 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5671 drv->ssid_len = params->ssid_len;
5672 }
5673 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5674 if (params->wpa_ie)
5675 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5676 params->wpa_ie);
5677
3f360238
JM		 5678 algs = 0;
5679 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5680 algs++;
5681 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5682 algs++;
5683 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5684 algs++;
5685 if (algs > 1) {
5686 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
5687 "selection");
5688 goto skip_auth_type;
5689 }
5690
abd9fafa 5691 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 5692 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 5693 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 5694 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 5695 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 5696 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 5697 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 5698 type = NL80211_AUTHTYPE_FT;
5699 else
5700 goto nla_put_failure;
5701
5702 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5703 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5704
3f360238 5705skip_auth_type:
64fa840a
JM		 5706 if (params->wpa_proto) {
5707 enum nl80211_wpa_versions ver = 0;
cfaab580 5708
64fa840a
JM		 5709 if (params->wpa_proto & WPA_PROTO_WPA)
5710 ver |= NL80211_WPA_VERSION_1;
5711 if (params->wpa_proto & WPA_PROTO_RSN)
5712 ver |= NL80211_WPA_VERSION_2;
cfaab580 5713
64fa840a 5714 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 5715 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5716 }
5717
5718 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 5719 int cipher;
cfaab580
ZY		 5720
5721 switch (params->pairwise_suite) {
5722 case CIPHER_WEP40:
5723 cipher = WLAN_CIPHER_SUITE_WEP40;
5724 break;
5725 case CIPHER_WEP104:
5726 cipher = WLAN_CIPHER_SUITE_WEP104;
5727 break;
5728 case CIPHER_CCMP:
5729 cipher = WLAN_CIPHER_SUITE_CCMP;
5730 break;
5731 case CIPHER_TKIP:
5732 default:
5733 cipher = WLAN_CIPHER_SUITE_TKIP;
5734 break;
5735 }
5736 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5737 }
5738
5739 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 5740 int cipher;
cfaab580
ZY		 5741
5742 switch (params->group_suite) {
5743 case CIPHER_WEP40:
5744 cipher = WLAN_CIPHER_SUITE_WEP40;
5745 break;
5746 case CIPHER_WEP104:
5747 cipher = WLAN_CIPHER_SUITE_WEP104;
5748 break;
5749 case CIPHER_CCMP:
5750 cipher = WLAN_CIPHER_SUITE_CCMP;
5751 break;
5752 case CIPHER_TKIP:
5753 default:
5754 cipher = WLAN_CIPHER_SUITE_TKIP;
5755 break;
5756 }
5757 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5758 }
5759
5760 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
5761 params->key_mgmt_suite == KEY_MGMT_PSK) {
5762 int mgmt = WLAN_AKM_SUITE_PSK;
5763
5764 switch (params->key_mgmt_suite) {
5765 case KEY_MGMT_802_1X:
5766 mgmt = WLAN_AKM_SUITE_8021X;
5767 break;
5768 case KEY_MGMT_PSK:
5769 default:
5770 mgmt = WLAN_AKM_SUITE_PSK;
5771 break;
5772 }
5773 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
5774 }
5775
5776 ret = nl80211_set_conn_keys(params, msg);
5777 if (ret)
5778 goto nla_put_failure;
5779
5780 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5781 msg = NULL;
5782 if (ret) {
5783 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
5784 "(%s)", ret, strerror(-ret));
20f5a4c2
JM		 5785 /*
5786 * cfg80211 does not currently accept new connection if we are
5787 * already connected. As a workaround, force disconnection and
5788 * try again once the driver indicates it completed
5789 * disconnection.
5790 */
5791 if (ret == -EALREADY)
5792 nl80211_disconnect(drv, params->bssid);
cfaab580
ZY		 5793 goto nla_put_failure;
5794 }
5795 ret = 0;
5796 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
5797
5798nla_put_failure:
5799 nlmsg_free(msg);
5800 return ret;
5801
5802}
5803
5804
c2a04078
JM		 5805static int wpa_driver_nl80211_associate(
5806 void *priv, struct wpa_driver_associate_params *params)
5807{
a2e40bb6
FF		 5808 struct i802_bss *bss = priv;
5809 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 5810 int ret = -1;
5811 struct nl_msg *msg;
5812
5cc4d64b 5813 if (params->mode == IEEE80211_MODE_AP)
1581b38b 5814 return wpa_driver_nl80211_ap(drv, params);
1581b38b 5815
5cc4d64b
JM		 5816 if (params->mode == IEEE80211_MODE_IBSS)
5817 return wpa_driver_nl80211_ibss(drv, params);
5818
4a867032 5819 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 5820 enum nl80211_iftype nlmode = params->p2p ?
5821 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5822
5823 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 5824 return -1;
cfaab580 5825 return wpa_driver_nl80211_connect(drv, params);
4a867032 5826 }
cfaab580 5827
c2a04078
JM		 5828 drv->associated = 0;
5829
5830 msg = nlmsg_alloc();
5831 if (!msg)
5832 return -1;
5833
5834 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
5835 drv->ifindex);
9fb04070 5836 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 5837
5838 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5839 if (params->bssid) {
5840 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5841 MAC2STR(params->bssid));
5842 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5843 }
5844 if (params->freq) {
5845 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5846 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 5847 drv->assoc_freq = params->freq;
5848 } else
5849 drv->assoc_freq = 0;
c2a04078
JM		 5850 if (params->ssid) {
5851 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5852 params->ssid, params->ssid_len);
5853 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5854 params->ssid);
fd05d64e
JM		 5855 if (params->ssid_len > sizeof(drv->ssid))
5856 goto nla_put_failure;
5857 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5858 drv->ssid_len = params->ssid_len;
c2a04078
JM		 5859 }
5860 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5861 if (params->wpa_ie)
5862 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5863 params->wpa_ie);
5864
aca01605
JM		 5865 if (params->pairwise_suite != CIPHER_NONE) {
5866 int cipher;
5867
5868 switch (params->pairwise_suite) {
5869 case CIPHER_WEP40:
5870 cipher = WLAN_CIPHER_SUITE_WEP40;
5871 break;
5872 case CIPHER_WEP104:
5873 cipher = WLAN_CIPHER_SUITE_WEP104;
5874 break;
5875 case CIPHER_CCMP:
5876 cipher = WLAN_CIPHER_SUITE_CCMP;
5877 break;
5878 case CIPHER_TKIP:
5879 default:
5880 cipher = WLAN_CIPHER_SUITE_TKIP;
5881 break;
5882 }
79c3124c 5883 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 5884 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5885 }
5886
5887 if (params->group_suite != CIPHER_NONE) {
5888 int cipher;
5889
5890 switch (params->group_suite) {
5891 case CIPHER_WEP40:
5892 cipher = WLAN_CIPHER_SUITE_WEP40;
5893 break;
5894 case CIPHER_WEP104:
5895 cipher = WLAN_CIPHER_SUITE_WEP104;
5896 break;
5897 case CIPHER_CCMP:
5898 cipher = WLAN_CIPHER_SUITE_CCMP;
5899 break;
5900 case CIPHER_TKIP:
5901 default:
5902 cipher = WLAN_CIPHER_SUITE_TKIP;
5903 break;
5904 }
79c3124c 5905 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 5906 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5907 }
5908
e572fa33
JM		 5909#ifdef CONFIG_IEEE80211W
5910 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
5911 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
5912#endif /* CONFIG_IEEE80211W */
5913
01652550
JM		 5914 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
5915
62fa124c
JM		 5916 if (params->prev_bssid) {
5917 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
5918 MAC2STR(params->prev_bssid));
5919 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
5920 params->prev_bssid);
5921 }
5922
046b26a2
JM		 5923 if (params->p2p)
5924 wpa_printf(MSG_DEBUG, " * P2P group");
5925
c2a04078
JM		 5926 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5927 msg = NULL;
5928 if (ret) {
3b7ea880
BG		 5929 wpa_dbg(drv->ctx, MSG_DEBUG,
5930 "nl80211: MLME command failed (assoc): ret=%d (%s)",
5931 ret, strerror(-ret));
8856462d 5932 nl80211_dump_scan(drv);
c2a04078
JM		 5933 goto nla_put_failure;
5934 }
5935 ret = 0;
5936 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
5937 "successfully");
5938
5939nla_put_failure:
5940 nlmsg_free(msg);
5941 return ret;
5942}
3f5285e8
JM		 5943
5944
ad1e68e6 5945static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 5946 int ifindex, enum nl80211_iftype mode)
3f5285e8 5947{
3f5285e8 5948 struct nl_msg *msg;
ad1e68e6
JM		 5949 int ret = -ENOBUFS;
5950
a1922f93
JM		 5951 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
5952 ifindex, mode, nl80211_iftype_str(mode));
5953
ad1e68e6
JM		 5954 msg = nlmsg_alloc();
5955 if (!msg)
5956 return -ENOMEM;
5957
9fb04070 5958 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 5959 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5960 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
5961
5962 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5963 if (!ret)
5964 return 0;
5965nla_put_failure:
5966 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
5967 " %d (%s)", ifindex, mode, ret, strerror(-ret));
5968 return ret;
5969}
5970
5971
b1f625e0
EP		 5972static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
5973 enum nl80211_iftype nlmode)
ad1e68e6 5974{
a2e40bb6 5975 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 5976 int ret = -1;
26af9dca 5977 int i;
86957e62 5978 int was_ap = is_ap_interface(drv->nlmode);
1581b38b 5979
ad1e68e6
JM		 5980 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
5981 drv->nlmode = nlmode;
460456f8
JM		 5982 ret = 0;
5983 goto done;
ad1e68e6 5984 }
3f5285e8 5985
460456f8 5986 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 5987 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
5988 "requested mode - ignore error");
460456f8
JM		 5989 ret = 0;
5990 goto done; /* Already in the requested mode */
5991 }
3f5285e8 5992
3f5285e8
JM		 5993 /* mac80211 doesn't allow mode changes while the device is up, so
5994 * take the device down, try to set the mode again, and bring the
5995 * device back up.
5996 */
26af9dca
JM		 5997 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
5998 "interface down");
5999 for (i = 0; i < 10; i++) {
6e8183d7 6000 int res;
c81eff1a
BG		 6001 res = linux_set_iface_flags(drv->global->ioctl_sock,
6002 bss->ifname, 0);
6e8183d7
JM		 6003 if (res == -EACCES || res == -ENODEV)
6004 break;
6005 if (res == 0) {
26af9dca
JM		 6006 /* Try to set the mode again while the interface is
6007 * down */
6008 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 6009 if (ret == -EACCES)
6010 break;
c81eff1a 6011 res = linux_set_iface_flags(drv->global->ioctl_sock,
6e8183d7
JM		 6012 bss->ifname, 1);
6013 if (res && !ret)
26af9dca 6014 ret = -1;
6e8183d7 6015 else if (ret != -EBUSY)
26af9dca
JM		 6016 break;
6017 } else
6018 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
6019 "interface down");
6020 os_sleep(0, 100000);
3f5285e8
JM		 6021 }
6022
c6e8e8e4
JM		 6023 if (!ret) {
6024 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
6025 "interface is down");
ad1e68e6 6026 drv->nlmode = nlmode;
7d9c3698 6027 drv->ignore_if_down_event = 1;
c6e8e8e4 6028 }
ad1e68e6 6029
460456f8 6030done:
3fd1cefb
JB		 6031 if (ret) {
6032 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
6033 "from %d failed", nlmode, drv->nlmode);
6034 return ret;
6035 }
6036
6037 if (is_ap_interface(nlmode)) {
460456f8 6038 /* Setup additional AP mode functionality if needed */
3fd1cefb 6039 if (nl80211_setup_ap(bss))
460456f8 6040 return -1;
3fd1cefb 6041 } else if (was_ap) {
460456f8 6042 /* Remove additional AP mode functionality */
3fd1cefb 6043 nl80211_teardown_ap(bss);
460456f8 6044 }
460456f8 6045
b3af99d2 6046 if (!ret && is_p2p_interface(drv->nlmode)) {
08359050 6047 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
b3af99d2
JM		 6048 drv->disabled_11b_rates = 1;
6049 } else if (!ret && drv->disabled_11b_rates) {
6050 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
6051 drv->disabled_11b_rates = 0;
6052 }
08359050 6053
3fd1cefb 6054 return 0;
3f5285e8
JM		 6055}
6056
6057
3f5285e8
JM		 6058static int wpa_driver_nl80211_get_capa(void *priv,
6059 struct wpa_driver_capa *capa)
6060{
a2e40bb6
FF		 6061 struct i802_bss *bss = priv;
6062 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 6063 if (!drv->has_capability)
6064 return -1;
6065 os_memcpy(capa, &drv->capa, sizeof(*capa));
6066 return 0;
6067}
6068
6069
6070static int wpa_driver_nl80211_set_operstate(void *priv, int state)
6071{
a2e40bb6
FF		 6072 struct i802_bss *bss = priv;
6073 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 6074
6075 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
6076 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
6077 drv->operstate = state;
36d84860 6078 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 6079 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 6080}
6081
01652550
JM		 6082
6083static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
6084{
a2e40bb6
FF		 6085 struct i802_bss *bss = priv;
6086 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 6087 struct nl_msg *msg;
6088 struct nl80211_sta_flag_update upd;
6089
6090 msg = nlmsg_alloc();
6091 if (!msg)
6092 return -ENOMEM;
6093
9fb04070 6094 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 6095
6096 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6097 if_nametoindex(bss->ifname));
01652550
JM		 6098 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
6099
6100 os_memset(&upd, 0, sizeof(upd));
6101 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
6102 if (authorized)
6103 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
6104 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6105
6106 return send_and_recv_msgs(drv, msg, NULL, NULL);
6107 nla_put_failure:
6108 return -ENOBUFS;
6109}
6110
3f5285e8 6111
f07ead6a
JM		 6112/* Set kernel driver on given frequency (MHz) */
6113static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 6114{
f07ead6a 6115 struct i802_bss *bss = priv;
e4fb2167 6116 return wpa_driver_nl80211_set_freq(bss, freq->freq, freq->ht_enabled,
f07ead6a 6117 freq->sec_channel_offset);
c5121837
JM		 6118}
6119
f7b3920c
JM		 6120
6121#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 6122
c5121837
JM		 6123static inline int min_int(int a, int b)
6124{
6125 if (a < b)
6126 return a;
6127 return b;
6128}
6129
6130
6131static int get_key_handler(struct nl_msg *msg, void *arg)
6132{
6133 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6134 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6135
6136 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6137 genlmsg_attrlen(gnlh, 0), NULL);
6138
6139 /*
6140 * TODO: validate the key index and mac address!
6141 * Otherwise, there's a race condition as soon as
6142 * the kernel starts sending key notifications.
6143 */
6144
6145 if (tb[NL80211_ATTR_KEY_SEQ])
6146 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
6147 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
6148 return NL_SKIP;
6149}
6150
6151
6152static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
6153 int idx, u8 *seq)
6154{
a2e40bb6
FF		 6155 struct i802_bss *bss = priv;
6156 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6157 struct nl_msg *msg;
6158
6159 msg = nlmsg_alloc();
6160 if (!msg)
6161 return -ENOMEM;
6162
9fb04070 6163 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 6164
6165 if (addr)
6166 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6167 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
6168 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
6169
6170 memset(seq, 0, 6);
6171
6172 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
6173 nla_put_failure:
6174 return -ENOBUFS;
6175}
6176
6177
c5121837
JM		 6178static int i802_set_rts(void *priv, int rts)
6179{
a2e40bb6
FF		 6180 struct i802_bss *bss = priv;
6181 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 6182 struct nl_msg *msg;
6183 int ret = -ENOBUFS;
6184 u32 val;
c5121837 6185
ad649451
JM		 6186 msg = nlmsg_alloc();
6187 if (!msg)
6188 return -ENOMEM;
c5121837 6189
ad649451
JM		 6190 if (rts >= 2347)
6191 val = (u32) -1;
6192 else
6193 val = rts;
c5121837 6194
9fb04070 6195 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 6196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6197 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
6198
6199 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6200 if (!ret)
6201 return 0;
6202nla_put_failure:
6203 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
6204 "%d (%s)", rts, ret, strerror(-ret));
6205 return ret;
c5121837
JM		 6206}
6207
6208
6209static int i802_set_frag(void *priv, int frag)
6210{
a2e40bb6
FF		 6211 struct i802_bss *bss = priv;
6212 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 6213 struct nl_msg *msg;
6214 int ret = -ENOBUFS;
6215 u32 val;
c5121837 6216
ad649451
JM		 6217 msg = nlmsg_alloc();
6218 if (!msg)
6219 return -ENOMEM;
c5121837 6220
ad649451
JM		 6221 if (frag >= 2346)
6222 val = (u32) -1;
6223 else
6224 val = frag;
c5121837 6225
9fb04070 6226 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 6227 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6228 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
6229
6230 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6231 if (!ret)
6232 return 0;
6233nla_put_failure:
6234 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
6235 "%d: %d (%s)", frag, ret, strerror(-ret));
6236 return ret;
c5121837
JM		 6237}
6238
6239
c5121837
JM		 6240static int i802_flush(void *priv)
6241{
a2e40bb6
FF		 6242 struct i802_bss *bss = priv;
6243 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6244 struct nl_msg *msg;
6245
6246 msg = nlmsg_alloc();
6247 if (!msg)
6248 return -1;
6249
9fb04070 6250 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 6251
6252 /*
6253 * XXX: FIX! this needs to flush all VLANs too
6254 */
6255 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6256 if_nametoindex(bss->ifname));
c5121837
JM		 6257
6258 return send_and_recv_msgs(drv, msg, NULL, NULL);
6259 nla_put_failure:
6260 return -ENOBUFS;
6261}
6262
6263
6264static int get_sta_handler(struct nl_msg *msg, void *arg)
6265{
6266 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6267 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6268 struct hostap_sta_driver_data *data = arg;
6269 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
6270 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
6271 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
6272 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
6273 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
6274 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
6275 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
6276 };
6277
6278 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6279 genlmsg_attrlen(gnlh, 0), NULL);
6280
6281 /*
6282 * TODO: validate the interface and mac address!
6283 * Otherwise, there's a race condition as soon as
6284 * the kernel starts sending station notifications.
6285 */
6286
6287 if (!tb[NL80211_ATTR_STA_INFO]) {
6288 wpa_printf(MSG_DEBUG, "sta stats missing!");
6289 return NL_SKIP;
6290 }
6291 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
6292 tb[NL80211_ATTR_STA_INFO],
6293 stats_policy)) {
6294 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6295 return NL_SKIP;
6296 }
6297
6298 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
6299 data->inactive_msec =
6300 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
6301 if (stats[NL80211_STA_INFO_RX_BYTES])
6302 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
6303 if (stats[NL80211_STA_INFO_TX_BYTES])
6304 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
6305 if (stats[NL80211_STA_INFO_RX_PACKETS])
6306 data->rx_packets =
6307 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
6308 if (stats[NL80211_STA_INFO_TX_PACKETS])
6309 data->tx_packets =
6310 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
6311
6312 return NL_SKIP;
6313}
6314
6315static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
6316 const u8 *addr)
6317{
a2e40bb6
FF		 6318 struct i802_bss *bss = priv;
6319 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6320 struct nl_msg *msg;
6321
6322 os_memset(data, 0, sizeof(*data));
6323 msg = nlmsg_alloc();
6324 if (!msg)
6325 return -ENOMEM;
6326
9fb04070 6327 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 6328
6329 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 6330 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6331
6332 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
6333 nla_put_failure:
6334 return -ENOBUFS;
6335}
6336
6337
c5121837
JM		 6338static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
6339 int cw_min, int cw_max, int burst_time)
6340{
a2e40bb6
FF		 6341 struct i802_bss *bss = priv;
6342 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6343 struct nl_msg *msg;
6344 struct nlattr *txq, *params;
6345
6346 msg = nlmsg_alloc();
6347 if (!msg)
6348 return -1;
6349
9fb04070 6350 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 6351
a2e40bb6 6352 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6353
6354 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
6355 if (!txq)
6356 goto nla_put_failure;
6357
6358 /* We are only sending parameters for a single TXQ at a time */
6359 params = nla_nest_start(msg, 1);
6360 if (!params)
6361 goto nla_put_failure;
6362
7e3c1781
JM		 6363 switch (queue) {
6364 case 0:
6365 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
6366 break;
6367 case 1:
6368 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
6369 break;
6370 case 2:
6371 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
6372 break;
6373 case 3:
6374 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
6375 break;
6376 }
c5121837
JM		 6377 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
6378 * 32 usec, so need to convert the value here. */
6379 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
6380 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
6381 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
6382 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
6383
6384 nla_nest_end(msg, params);
6385
6386 nla_nest_end(msg, txq);
6387
6388 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6389 return 0;
6390 nla_put_failure:
6391 return -1;
6392}
6393
6394
c5121837
JM		 6395static int i802_set_sta_vlan(void *priv, const u8 *addr,
6396 const char *ifname, int vlan_id)
6397{
a2e40bb6
FF		 6398 struct i802_bss *bss = priv;
6399 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 6400 struct nl_msg *msg;
cd1d72c1 6401 int ret = -ENOBUFS;
c5121837
JM		 6402
6403 msg = nlmsg_alloc();
6404 if (!msg)
6405 return -ENOMEM;
6406
9fb04070 6407 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 6408
6409 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6410 if_nametoindex(bss->ifname));
c5121837 6411 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 6412 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 6413 if_nametoindex(ifname));
6414
cd1d72c1
JM		 6415 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6416 if (ret < 0) {
6417 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
6418 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
6419 MAC2STR(addr), ifname, vlan_id, ret,
6420 strerror(-ret));
6421 }
c5121837 6422 nla_put_failure:
cd1d72c1 6423 return ret;
c5121837
JM		 6424}
6425
fbbfcbac 6426
c5121837
JM		 6427static int i802_get_inact_sec(void *priv, const u8 *addr)
6428{
6429 struct hostap_sta_driver_data data;
6430 int ret;
6431
6432 data.inactive_msec = (unsigned long) -1;
6433 ret = i802_read_sta_data(priv, &data, addr);
6434 if (ret || data.inactive_msec == (unsigned long) -1)
6435 return -1;
6436 return data.inactive_msec / 1000;
6437}
6438
6439
6440static int i802_sta_clear_stats(void *priv, const u8 *addr)
6441{
6442#if 0
6443 /* TODO */
6444#endif
6445 return 0;
6446}
6447
6448
731723a5
JM		 6449static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
6450 int reason)
c5121837 6451{
a2e40bb6 6452 struct i802_bss *bss = priv;
c5121837
JM		 6453 struct ieee80211_mgmt mgmt;
6454
6455 memset(&mgmt, 0, sizeof(mgmt));
6456 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6457 WLAN_FC_STYPE_DEAUTH);
6458 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6459 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6460 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6461 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 6462 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 6463 IEEE80211_HDRLEN +
8cfa3527 6464 sizeof(mgmt.u.deauth), 0);
c5121837
JM		 6465}
6466
6467
731723a5
JM		 6468static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
6469 int reason)
c5121837 6470{
a2e40bb6 6471 struct i802_bss *bss = priv;
c5121837
JM		 6472 struct ieee80211_mgmt mgmt;
6473
6474 memset(&mgmt, 0, sizeof(mgmt));
6475 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6476 WLAN_FC_STYPE_DISASSOC);
6477 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6478 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6479 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6480 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 6481 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 6482 IEEE80211_HDRLEN +
8cfa3527 6483 sizeof(mgmt.u.disassoc), 0);
c5121837
JM		 6484}
6485
ee7ab173
JB		 6486#endif /* HOSTAPD || CONFIG_AP */
6487
6488#ifdef HOSTAPD
c5121837 6489
f07ead6a
JM		 6490static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6491{
6492 int i;
6493 int *old;
6494
6495 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
6496 ifidx);
6497 for (i = 0; i < drv->num_if_indices; i++) {
6498 if (drv->if_indices[i] == 0) {
6499 drv->if_indices[i] = ifidx;
6500 return;
6501 }
6502 }
6503
6504 if (drv->if_indices != drv->default_if_indices)
6505 old = drv->if_indices;
6506 else
6507 old = NULL;
6508
6509 drv->if_indices = os_realloc(old,
6510 sizeof(int) * (drv->num_if_indices + 1));
6511 if (!drv->if_indices) {
6512 if (!old)
6513 drv->if_indices = drv->default_if_indices;
6514 else
6515 drv->if_indices = old;
6516 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
6517 "interfaces");
6518 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
6519 return;
6520 } else if (!old)
6521 os_memcpy(drv->if_indices, drv->default_if_indices,
6522 sizeof(drv->default_if_indices));
6523 drv->if_indices[drv->num_if_indices] = ifidx;
6524 drv->num_if_indices++;
6525}
6526
6527
6528static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6529{
6530 int i;
6531
6532 for (i = 0; i < drv->num_if_indices; i++) {
6533 if (drv->if_indices[i] == ifidx) {
6534 drv->if_indices[i] = 0;
6535 break;
6536 }
6537 }
6538}
6539
6540
6541static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6542{
6543 int i;
6544
6545 for (i = 0; i < drv->num_if_indices; i++)
6546 if (drv->if_indices[i] == ifidx)
6547 return 1;
6548
6549 return 0;
6550}
6551
6552
6553static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
6554 const char *bridge_ifname)
6555{
6556 struct i802_bss *bss = priv;
6557 struct wpa_driver_nl80211_data *drv = bss->drv;
6558 char name[IFNAMSIZ + 1];
6559
6560 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
6561 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
6562 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
6563 if (val) {
6564 if (!if_nametoindex(name)) {
6565 if (nl80211_create_iface(drv, name,
6566 NL80211_IFTYPE_AP_VLAN,
6567 NULL, 1) < 0)
6568 return -1;
6569 if (bridge_ifname &&
c81eff1a
BG		 6570 linux_br_add_if(drv->global->ioctl_sock,
6571 bridge_ifname, name) < 0)
f07ead6a
JM		 6572 return -1;
6573 }
c81eff1a 6574 linux_set_iface_flags(drv->global->ioctl_sock, name, 1);
f07ead6a
JM		 6575 return i802_set_sta_vlan(priv, addr, name, 0);
6576 } else {
6577 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
6578 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
6579 name);
6580 }
6581}
6582
6583
6584static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
6585{
6586 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6587 struct sockaddr_ll lladdr;
6588 unsigned char buf[3000];
6589 int len;
6590 socklen_t fromlen = sizeof(lladdr);
6591
6592 len = recvfrom(sock, buf, sizeof(buf), 0,
6593 (struct sockaddr *)&lladdr, &fromlen);
6594 if (len < 0) {
6595 perror("recv");
6596 return;
6597 }
6598
6599 if (have_ifidx(drv, lladdr.sll_ifindex))
6600 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
6601}
6602
6603
94627f6c 6604static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 6605 struct i802_bss *bss,
94627f6c
JM		 6606 const char *brname, const char *ifname)
6607{
6608 int ifindex;
6609 char in_br[IFNAMSIZ];
6610
e17a2477 6611 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 6612 ifindex = if_nametoindex(brname);
6613 if (ifindex == 0) {
6614 /*
6615 * Bridge was configured, but the bridge device does
6616 * not exist. Try to add it now.
6617 */
c81eff1a 6618 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 6619 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
6620 "bridge interface %s: %s",
6621 brname, strerror(errno));
6622 return -1;
6623 }
e17a2477 6624 bss->added_bridge = 1;
94627f6c
JM		 6625 add_ifidx(drv, if_nametoindex(brname));
6626 }
6627
6628 if (linux_br_get(in_br, ifname) == 0) {
6629 if (os_strcmp(in_br, brname) == 0)
6630 return 0; /* already in the bridge */
6631
6632 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
6633 "bridge %s", ifname, in_br);
c81eff1a
BG		 6634 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
6635 0) {
94627f6c
JM		 6636 wpa_printf(MSG_ERROR, "nl80211: Failed to "
6637 "remove interface %s from bridge "
6638 "%s: %s",
6639 ifname, brname, strerror(errno));
6640 return -1;
6641 }
6642 }
6643
6644 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
6645 ifname, brname);
c81eff1a 6646 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 6647 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
6648 "into bridge %s: %s",
6649 ifname, brname, strerror(errno));
6650 return -1;
6651 }
e17a2477 6652 bss->added_if_into_bridge = 1;
94627f6c
JM		 6653
6654 return 0;
6655}
6656
6657
92f475b4
JM		 6658static void *i802_init(struct hostapd_data *hapd,
6659 struct wpa_init_params *params)
c5121837
JM		 6660{
6661 struct wpa_driver_nl80211_data *drv;
a2e40bb6 6662 struct i802_bss *bss;
c5121837 6663 size_t i;
94627f6c
JM		 6664 char brname[IFNAMSIZ];
6665 int ifindex, br_ifindex;
6666 int br_added = 0;
c5121837 6667
4b24282a
JM		 6668 bss = wpa_driver_nl80211_init(hapd, params->ifname,
6669 params->global_priv);
a2e40bb6 6670 if (bss == NULL)
c5121837 6671 return NULL;
c5121837 6672
a2e40bb6 6673 drv = bss->drv;
0382097e 6674 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 6675 drv->eapol_sock = -1;
6676
94627f6c
JM		 6677 if (linux_br_get(brname, params->ifname) == 0) {
6678 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
6679 params->ifname, brname);
6680 br_ifindex = if_nametoindex(brname);
6681 } else {
6682 brname[0] = '\0';
6683 br_ifindex = 0;
6684 }
6685
c5121837
JM		 6686 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
6687 drv->if_indices = drv->default_if_indices;
92f475b4 6688 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 6689 if (params->bridge[i]) {
6690 ifindex = if_nametoindex(params->bridge[i]);
6691 if (ifindex)
6692 add_ifidx(drv, ifindex);
6693 if (ifindex == br_ifindex)
6694 br_added = 1;
6695 }
c5121837 6696 }
94627f6c
JM		 6697 if (!br_added && br_ifindex &&
6698 (params->num_bridge == 0 || !params->bridge[0]))
6699 add_ifidx(drv, br_ifindex);
c5121837 6700
ad1e68e6
JM		 6701 /* start listening for EAPOL on the default AP interface */
6702 add_ifidx(drv, drv->ifindex);
6703
c81eff1a 6704 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 6705 goto failed;
ad1e68e6 6706
6980c191 6707 if (params->bssid) {
c81eff1a 6708 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 6709 params->bssid))
460456f8
JM		 6710 goto failed;
6711 }
ad1e68e6 6712
b1f625e0 6713 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 6714 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 6715 "into AP mode", bss->ifname);
bbaf0837 6716 goto failed;
ad1e68e6
JM		 6717 }
6718
94627f6c 6719 if (params->num_bridge && params->bridge[0] &&
e17a2477 6720 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 6721 goto failed;
6722
c81eff1a 6723 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 6724 goto failed;
ad1e68e6
JM		 6725
6726 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
6727 if (drv->eapol_sock < 0) {
6728 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 6729 goto failed;
ad1e68e6
JM		 6730 }
6731
6732 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
6733 {
6734 printf("Could not register read socket for eapol\n");
c5121837 6735 goto failed;
ad1e68e6
JM		 6736 }
6737
c81eff1a
BG		 6738 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
6739 params->own_addr))
bbaf0837 6740 goto failed;
c5121837 6741
a2e40bb6 6742 return bss;
c5121837
JM		 6743
6744failed:
7635bfb0 6745 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 6746 return NULL;
6747}
c5121837 6748
c5121837 6749
bbaf0837
JM		 6750static void i802_deinit(void *priv)
6751{
6752 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 6753}
6754
6755#endif /* HOSTAPD */
6756
6757
22a7c9d7
JM		 6758static enum nl80211_iftype wpa_driver_nl80211_if_type(
6759 enum wpa_driver_if_type type)
6760{
6761 switch (type) {
6762 case WPA_IF_STATION:
9f51b113 6763 return NL80211_IFTYPE_STATION;
75bde05d
JM		 6764 case WPA_IF_P2P_CLIENT:
6765 case WPA_IF_P2P_GROUP:
9f51b113 6766 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 6767 case WPA_IF_AP_VLAN:
6768 return NL80211_IFTYPE_AP_VLAN;
6769 case WPA_IF_AP_BSS:
6770 return NL80211_IFTYPE_AP;
9f51b113
JB		 6771 case WPA_IF_P2P_GO:
6772 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 6773 }
6774 return -1;
6775}
6776
6777
482856c8
JM		 6778#ifdef CONFIG_P2P
6779
f2ed8023
JM		 6780static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
6781{
6782 struct wpa_driver_nl80211_data *drv;
6783 dl_list_for_each(drv, &global->interfaces,
6784 struct wpa_driver_nl80211_data, list) {
6785 if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
6786 return 1;
6787 }
6788 return 0;
6789}
6790
6791
6792static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
6793 u8 *new_addr)
6794{
6795 unsigned int idx;
6796
6797 if (!drv->global)
6798 return -1;
6799
6800 os_memcpy(new_addr, drv->addr, ETH_ALEN);
6801 for (idx = 0; idx < 64; idx++) {
6802 new_addr[0] = drv->addr[0] | 0x02;
6803 new_addr[0] ^= idx << 2;
6804 if (!nl80211_addr_in_use(drv->global, new_addr))
6805 break;
6806 }
6807 if (idx == 64)
6808 return -1;
6809
6810 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
6811 MACSTR, MAC2STR(new_addr));
6812
6813 return 0;
6814}
6815
482856c8
JM		 6816#endif /* CONFIG_P2P */
6817
f2ed8023 6818
7ab68865 6819static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 6820 const char *ifname, const u8 *addr,
f3585c8a 6821 void *bss_ctx, void **drv_priv,
e17a2477
JM		 6822 char *force_ifname, u8 *if_addr,
6823 const char *bridge)
22a7c9d7 6824{
a2e40bb6
FF		 6825 struct i802_bss *bss = priv;
6826 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6827 int ifidx;
6828#ifdef HOSTAPD
a2e40bb6 6829 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 6830
6831 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 6832 new_bss = os_zalloc(sizeof(*new_bss));
6833 if (new_bss == NULL)
22a7c9d7
JM		 6834 return -1;
6835 }
6836#endif /* HOSTAPD */
6837
f3585c8a
JM		 6838 if (addr)
6839 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 6840 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 6841 wpa_driver_nl80211_if_type(type), addr,
6842 0);
22a7c9d7
JM		 6843 if (ifidx < 0) {
6844#ifdef HOSTAPD
a2e40bb6 6845 os_free(new_bss);
22a7c9d7
JM		 6846#endif /* HOSTAPD */
6847 return -1;
6848 }
6849
f3585c8a 6850 if (!addr &&
c81eff1a
BG		 6851 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
6852 if_addr) < 0) {
c55f774d 6853 nl80211_remove_iface(drv, ifidx);
f3585c8a 6854 return -1;
c55f774d
JM		 6855 }
6856
6857#ifdef CONFIG_P2P
6858 if (!addr &&
6859 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
6860 type == WPA_IF_P2P_GO)) {
6861 /* Enforce unique P2P Interface Address */
6862 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
6863
c81eff1a
BG		 6864 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
6865 own_addr) < 0 ||
6866 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
6867 new_addr) < 0) {
c55f774d
JM		 6868 nl80211_remove_iface(drv, ifidx);
6869 return -1;
6870 }
6871 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
6872 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
6873 "for P2P group interface");
f2ed8023 6874 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 6875 nl80211_remove_iface(drv, ifidx);
6876 return -1;
6877 }
c81eff1a 6878 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 6879 new_addr) < 0) {
6880 nl80211_remove_iface(drv, ifidx);
6881 return -1;
6882 }
c55f774d 6883 }
f67eeb5c 6884 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 6885 }
6886#endif /* CONFIG_P2P */
f3585c8a 6887
22a7c9d7 6888#ifdef HOSTAPD
e17a2477
JM		 6889 if (bridge &&
6890 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
6891 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
6892 "interface %s to a bridge %s", ifname, bridge);
6893 nl80211_remove_iface(drv, ifidx);
6894 os_free(new_bss);
6895 return -1;
6896 }
6897
22a7c9d7 6898 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 6899 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
6900 {
34f2f814 6901 nl80211_remove_iface(drv, ifidx);
07179987 6902 os_free(new_bss);
22a7c9d7
JM		 6903 return -1;
6904 }
a2e40bb6
FF		 6905 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
6906 new_bss->ifindex = ifidx;
6907 new_bss->drv = drv;
6908 new_bss->next = drv->first_bss.next;
6909 drv->first_bss.next = new_bss;
6910 if (drv_priv)
6911 *drv_priv = new_bss;
22a7c9d7
JM		 6912 }
6913#endif /* HOSTAPD */
6914
ff6a158b
JM		 6915 if (drv->global)
6916 drv->global->if_add_ifindex = ifidx;
6917
22a7c9d7
JM		 6918 return 0;
6919}
6920
6921
6922static int wpa_driver_nl80211_if_remove(void *priv,
6923 enum wpa_driver_if_type type,
6924 const char *ifname)
6925{
a2e40bb6
FF		 6926 struct i802_bss *bss = priv;
6927 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6928 int ifindex = if_nametoindex(ifname);
6929
e748062b
JM		 6930 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
6931 __func__, type, ifname, ifindex);
6932 if (ifindex <= 0)
6933 return -1;
e17a2477
JM		 6934
6935#ifdef HOSTAPD
6936 if (bss->added_if_into_bridge) {
c81eff1a
BG		 6937 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
6938 bss->ifname) < 0)
e17a2477
JM		 6939 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6940 "interface %s from bridge %s: %s",
6941 bss->ifname, bss->brname, strerror(errno));
6942 }
6943 if (bss->added_bridge) {
c81eff1a 6944 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 6945 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6946 "bridge %s: %s",
6947 bss->brname, strerror(errno));
6948 }
6949#endif /* HOSTAPD */
6950
22a7c9d7
JM		 6951 nl80211_remove_iface(drv, ifindex);
6952
6953#ifdef HOSTAPD
a2e40bb6
FF		 6954 if (type != WPA_IF_AP_BSS)
6955 return 0;
6956
6957 if (bss != &drv->first_bss) {
8546ea19 6958 struct i802_bss *tbss;
a2e40bb6 6959
8546ea19
JM		 6960 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
6961 if (tbss->next == bss) {
6962 tbss->next = bss->next;
6963 os_free(bss);
6964 bss = NULL;
6965 break;
6966 }
22a7c9d7 6967 }
8546ea19
JM		 6968 if (bss)
6969 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
6970 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 6971 }
6972#endif /* HOSTAPD */
6973
6974 return 0;
6975}
6976
6977
55777702
JM		 6978static int cookie_handler(struct nl_msg *msg, void *arg)
6979{
6980 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6981 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6982 u64 *cookie = arg;
6983 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6984 genlmsg_attrlen(gnlh, 0), NULL);
6985 if (tb[NL80211_ATTR_COOKIE])
6986 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
6987 return NL_SKIP;
6988}
6989
6990
88df0ef7 6991static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 6992 unsigned int freq, unsigned int wait,
6993 const u8 *buf, size_t buf_len,
88df0ef7
JB		 6994 u64 *cookie_out, int no_cck, int no_ack,
6995 int offchanok)
9884f9cc 6996{
88df0ef7 6997 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 6998 struct nl_msg *msg;
6999 u64 cookie;
7000 int ret = -1;
7001
7002 msg = nlmsg_alloc();
7003 if (!msg)
7004 return -1;
7005
9fb04070 7006 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 7007
88df0ef7 7008 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9884f9cc 7009 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 7010 if (wait)
7011 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
88df0ef7
JB		 7012 if (offchanok)
7013 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 7014 if (no_cck)
7015 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 7016 if (no_ack)
7017 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 7018
9884f9cc
JB		 7019 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
7020
7021 cookie = 0;
7022 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7023 msg = NULL;
7024 if (ret) {
7025 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 7026 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
7027 freq, wait);
9884f9cc
JB		 7028 goto nla_put_failure;
7029 }
ddc53271
JM		 7030 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; "
7031 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
7032 (long long unsigned int) cookie);
9884f9cc
JB		 7033
7034 if (cookie_out)
ddc53271 7035 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 7036
7037nla_put_failure:
7038 nlmsg_free(msg);
7039 return ret;
7040}
7041
7042
58f6fbe0 7043static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 7044 unsigned int wait_time,
58f6fbe0
JM		 7045 const u8 *dst, const u8 *src,
7046 const u8 *bssid,
b106173a
JM		 7047 const u8 *data, size_t data_len,
7048 int no_cck)
58f6fbe0 7049{
a2e40bb6
FF		 7050 struct i802_bss *bss = priv;
7051 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 7052 int ret = -1;
58f6fbe0
JM		 7053 u8 *buf;
7054 struct ieee80211_hdr *hdr;
58f6fbe0 7055
5dfca53f 7056 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
b106173a 7057 "wait=%d ms no_cck=%d)", drv->ifindex, wait_time, no_cck);
58f6fbe0
JM		 7058
7059 buf = os_zalloc(24 + data_len);
7060 if (buf == NULL)
7061 return ret;
7062 os_memcpy(buf + 24, data, data_len);
7063 hdr = (struct ieee80211_hdr *) buf;
7064 hdr->frame_control =
7065 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
7066 os_memcpy(hdr->addr1, dst, ETH_ALEN);
7067 os_memcpy(hdr->addr2, src, ETH_ALEN);
7068 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
7069
b1f625e0 7070 if (is_ap_interface(drv->nlmode))
8cfa3527
HS		 7071 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len,
7072 0);
9884f9cc 7073 else
88df0ef7 7074 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 7075 24 + data_len,
b106173a 7076 &drv->send_action_cookie,
88df0ef7 7077 no_cck, 0, 1);
58f6fbe0 7078
f8bf1421 7079 os_free(buf);
58f6fbe0
JM		 7080 return ret;
7081}
7082
7083
5dfca53f
JB		 7084static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
7085{
7086 struct i802_bss *bss = priv;
7087 struct wpa_driver_nl80211_data *drv = bss->drv;
7088 struct nl_msg *msg;
7089 int ret;
7090
7091 msg = nlmsg_alloc();
7092 if (!msg)
7093 return;
7094
9fb04070 7095 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 7096
7097 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7098 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
7099
7100 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7101 msg = NULL;
7102 if (ret)
7103 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
7104 "(%s)", ret, strerror(-ret));
7105
7106 nla_put_failure:
7107 nlmsg_free(msg);
7108}
7109
7110
55777702
JM		 7111static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
7112 unsigned int duration)
7113{
a2e40bb6
FF		 7114 struct i802_bss *bss = priv;
7115 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 7116 struct nl_msg *msg;
7117 int ret;
7118 u64 cookie;
7119
7120 msg = nlmsg_alloc();
7121 if (!msg)
7122 return -1;
7123
9fb04070 7124 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 7125
7126 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7127 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7128 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7129
7130 cookie = 0;
7131 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7132 if (ret == 0) {
7133 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
7134 "0x%llx for freq=%u MHz duration=%u",
7135 (long long unsigned int) cookie, freq, duration);
7136 drv->remain_on_chan_cookie = cookie;
531f0331 7137 drv->pending_remain_on_chan = 1;
55777702
JM		 7138 return 0;
7139 }
7140 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 7141 "(freq=%d duration=%u): %d (%s)",
7142 freq, duration, ret, strerror(-ret));
55777702
JM		 7143nla_put_failure:
7144 return -1;
7145}
7146
7147
7148static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
7149{
a2e40bb6
FF		 7150 struct i802_bss *bss = priv;
7151 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 7152 struct nl_msg *msg;
7153 int ret;
7154
7155 if (!drv->pending_remain_on_chan) {
7156 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
7157 "to cancel");
7158 return -1;
7159 }
7160
7161 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
7162 "0x%llx",
7163 (long long unsigned int) drv->remain_on_chan_cookie);
7164
7165 msg = nlmsg_alloc();
7166 if (!msg)
7167 return -1;
7168
9fb04070 7169 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 7170
7171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7172 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
7173
7174 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7175 if (ret == 0)
7176 return 0;
7177 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
7178 "%d (%s)", ret, strerror(-ret));
7179nla_put_failure:
7180 return -1;
7181}
7182
7183
504e905c
JM		 7184static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
7185{
a2e40bb6
FF		 7186 struct i802_bss *bss = priv;
7187 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 7188
5582a5d1 7189 if (!report) {
221a59c9 7190 if (bss->nl_preq.handle) {
5582a5d1 7191 eloop_unregister_read_sock(
221a59c9
JB		 7192 nl_socket_get_fd(bss->nl_preq.handle));
7193 nl_destroy_handles(&bss->nl_preq);
5582a5d1
JB		 7194 }
7195 return 0;
7196 }
7197
221a59c9 7198 if (bss->nl_preq.handle) {
5582a5d1
JB		 7199 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
7200 "already on!");
7201 return 0;
7202 }
7203
221a59c9 7204 if (nl_create_handles(&bss->nl_preq, drv->global->nl_cb, "preq"))
5582a5d1 7205 return -1;
5582a5d1 7206
221a59c9 7207 if (nl80211_register_frame(drv, bss->nl_preq.handle,
5582a5d1
JB		 7208 (WLAN_FC_TYPE_MGMT << 2) |
7209 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 7210 NULL, 0) < 0)
7211 goto out_err;
5582a5d1 7212
221a59c9 7213 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq.handle),
5582a5d1 7214 wpa_driver_nl80211_event_receive, drv,
221a59c9 7215 bss->nl_preq.handle);
5582a5d1 7216
504e905c 7217 return 0;
5582a5d1 7218
a92dfde8 7219 out_err:
221a59c9 7220 nl_destroy_handles(&bss->nl_preq);
5582a5d1 7221 return -1;
504e905c
JM		 7222}
7223
7224
4e5cb1a3
JM		 7225static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
7226 int ifindex, int disabled)
7227{
7228 struct nl_msg *msg;
7229 struct nlattr *bands, *band;
7230 int ret;
7231
7232 msg = nlmsg_alloc();
7233 if (!msg)
7234 return -1;
7235
9fb04070 7236 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 7237 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7238
7239 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
7240 if (!bands)
7241 goto nla_put_failure;
7242
7243 /*
7244 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
7245 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
7246 * rates. All 5 GHz rates are left enabled.
7247 */
7248 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
7249 if (!band)
7250 goto nla_put_failure;
1dea5882
JM		 7251 if (disabled) {
7252 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
7253 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
7254 }
4e5cb1a3
JM		 7255 nla_nest_end(msg, band);
7256
7257 nla_nest_end(msg, bands);
7258
7259 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7260 msg = NULL;
7261 if (ret) {
7262 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
7263 "(%s)", ret, strerror(-ret));
7264 }
7265
7266 return ret;
7267
7268nla_put_failure:
7269 nlmsg_free(msg);
7270 return -1;
7271}
7272
7273
af473088
JM		 7274static int wpa_driver_nl80211_deinit_ap(void *priv)
7275{
a2e40bb6
FF		 7276 struct i802_bss *bss = priv;
7277 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 7278 if (!is_ap_interface(drv->nlmode))
af473088
JM		 7279 return -1;
7280 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 7281 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 7282}
7283
7284
207ef3fb
JM		 7285static void wpa_driver_nl80211_resume(void *priv)
7286{
a2e40bb6
FF		 7287 struct i802_bss *bss = priv;
7288 struct wpa_driver_nl80211_data *drv = bss->drv;
c81eff1a 7289 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 7290 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
7291 "resume event");
7292 }
7293}
7294
7295
7b90c16a
JM		 7296static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
7297 const u8 *ies, size_t ies_len)
7298{
7299 struct i802_bss *bss = priv;
7300 struct wpa_driver_nl80211_data *drv = bss->drv;
7301 int ret;
7302 u8 *data, *pos;
7303 size_t data_len;
7304 u8 own_addr[ETH_ALEN];
7305
c81eff1a
BG		 7306 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7307 own_addr) < 0)
7b90c16a
JM		 7308 return -1;
7309
7310 if (action != 1) {
7311 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
7312 "action %d", action);
7313 return -1;
7314 }
7315
7316 /*
7317 * Action frame payload:
7318 * Category[1] = 6 (Fast BSS Transition)
7319 * Action[1] = 1 (Fast BSS Transition Request)
7320 * STA Address
7321 * Target AP Address
7322 * FT IEs
7323 */
7324
73fc617d
JM		 7325 data_len = 2 + 2 * ETH_ALEN + ies_len;
7326 data = os_malloc(data_len);
7b90c16a
JM		 7327 if (data == NULL)
7328 return -1;
7329 pos = data;
7330 *pos++ = 0x06; /* FT Action category */
7331 *pos++ = action;
7332 os_memcpy(pos, own_addr, ETH_ALEN);
7333 pos += ETH_ALEN;
7334 os_memcpy(pos, target_ap, ETH_ALEN);
7335 pos += ETH_ALEN;
7336 os_memcpy(pos, ies, ies_len);
7337
190b9062
JB		 7338 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
7339 drv->bssid, own_addr, drv->bssid,
b106173a 7340 data, data_len, 0);
7b90c16a
JM		 7341 os_free(data);
7342
7343 return ret;
7344}
7345
7346
b625473c
JM		 7347static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
7348{
7349 struct i802_bss *bss = priv;
7350 struct wpa_driver_nl80211_data *drv = bss->drv;
7351 struct nl_msg *msg, *cqm = NULL;
7352
7353 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
7354 "hysteresis=%d", threshold, hysteresis);
7355
7356 msg = nlmsg_alloc();
7357 if (!msg)
7358 return -1;
7359
9fb04070 7360 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 7361
7362 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7363
7364 cqm = nlmsg_alloc();
7365 if (cqm == NULL)
7366 return -1;
7367
7368 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
7369 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
7370 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
7371
7372 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7373 return 0;
7374 msg = NULL;
7375
7376nla_put_failure:
7377 if (cqm)
7378 nlmsg_free(cqm);
7379 nlmsg_free(msg);
7380 return -1;
7381}
7382
7383
1c5c7273
PS		 7384static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
7385{
7386 struct i802_bss *bss = priv;
7387 struct wpa_driver_nl80211_data *drv = bss->drv;
7388 int res;
7389
7390 os_memset(si, 0, sizeof(*si));
7391 res = nl80211_get_link_signal(drv, si);
7392 if (res != 0)
7393 return res;
7394
7395 return nl80211_get_link_noise(drv, si);
7396}
7397
7398
57ebba59
JJ		 7399static int wpa_driver_nl80211_shared_freq(void *priv)
7400{
7401 struct i802_bss *bss = priv;
7402 struct wpa_driver_nl80211_data *drv = bss->drv;
7403 struct wpa_driver_nl80211_data *driver;
7404 int freq = 0;
7405
7406 /*
7407 * If the same PHY is in connected state with some other interface,
7408 * then retrieve the assoc freq.
7409 */
7410 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
7411 drv->phyname);
7412
7413 dl_list_for_each(driver, &drv->global->interfaces,
7414 struct wpa_driver_nl80211_data, list) {
7415 if (drv == driver ||
7416 os_strcmp(drv->phyname, driver->phyname) != 0 ||
7417 !driver->associated)
7418 continue;
7419
7420 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
7421 MACSTR,
7422 driver->phyname, driver->first_bss.ifname,
7423 MAC2STR(driver->addr));
7424 freq = nl80211_get_assoc_freq(driver);
7425 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
7426 drv->phyname, freq);
7427 }
7428
7429 if (!freq)
7430 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
7431 "PHY (%s) in associated state", drv->phyname);
7432
7433 return freq;
7434}
7435
7436
b91ab76e
JM		 7437static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
7438 int encrypt)
7439{
7440 struct i802_bss *bss = priv;
7441 struct wpa_driver_nl80211_data *drv = bss->drv;
fab25336 7442 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt, 0);
b91ab76e
JM		 7443}
7444
7445
c55f774d
JM		 7446static int nl80211_set_param(void *priv, const char *param)
7447{
c55f774d
JM		 7448 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
7449 if (param == NULL)
7450 return 0;
7451
7452#ifdef CONFIG_P2P
7453 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 7454 struct i802_bss *bss = priv;
7455 struct wpa_driver_nl80211_data *drv = bss->drv;
7456
c55f774d
JM		 7457 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
7458 "interface");
7459 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
7460 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
7461 }
7462#endif /* CONFIG_P2P */
7463
7464 return 0;
7465}
7466
7467
f2ed8023
JM		 7468static void * nl80211_global_init(void)
7469{
7470 struct nl80211_global *global;
36d84860
BG		 7471 struct netlink_config *cfg;
7472
f2ed8023
JM		 7473 global = os_zalloc(sizeof(*global));
7474 if (global == NULL)
7475 return NULL;
c81eff1a 7476 global->ioctl_sock = -1;
f2ed8023 7477 dl_list_init(&global->interfaces);
ff6a158b 7478 global->if_add_ifindex = -1;
36d84860
BG		 7479
7480 cfg = os_zalloc(sizeof(*cfg));
7481 if (cfg == NULL)
7482 goto err;
7483
7484 cfg->ctx = global;
7485 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
7486 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
7487 global->netlink = netlink_init(cfg);
7488 if (global->netlink == NULL) {
7489 os_free(cfg);
7490 goto err;
7491 }
7492
2a7b66f5
BG		 7493 if (wpa_driver_nl80211_init_nl_global(global) < 0)
7494 goto err;
7495
c81eff1a
BG		 7496 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
7497 if (global->ioctl_sock < 0) {
7498 perror("socket(PF_INET,SOCK_DGRAM)");
7499 goto err;
7500 }
7501
f2ed8023 7502 return global;
36d84860
BG		 7503
7504err:
7505 nl80211_global_deinit(global);
7506 return NULL;
f2ed8023
JM		 7507}
7508
7509
7510static void nl80211_global_deinit(void *priv)
7511{
7512 struct nl80211_global *global = priv;
7513 if (global == NULL)
7514 return;
7515 if (!dl_list_empty(&global->interfaces)) {
7516 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
7517 "nl80211_global_deinit",
7518 dl_list_len(&global->interfaces));
7519 }
36d84860
BG		 7520
7521 if (global->netlink)
7522 netlink_deinit(global->netlink);
7523
276e2d67
BG		 7524 nl_destroy_handles(&global->nl);
7525
2a7b66f5
BG		 7526 if (global->nl_cb)
7527 nl_cb_put(global->nl_cb);
7528
c81eff1a
BG		 7529 if (global->ioctl_sock >= 0)
7530 close(global->ioctl_sock);
7531
f2ed8023
JM		 7532 os_free(global);
7533}
7534
7535
6859f1cb
BG		 7536static const char * nl80211_get_radio_name(void *priv)
7537{
7538 struct i802_bss *bss = priv;
7539 struct wpa_driver_nl80211_data *drv = bss->drv;
7540 return drv->phyname;
7541}
7542
7543
a6efc65d
JM		 7544static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
7545 const u8 *pmkid)
7546{
7547 struct nl_msg *msg;
7548
7549 msg = nlmsg_alloc();
7550 if (!msg)
7551 return -ENOMEM;
7552
9fb04070 7553 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 7554
7555 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7556 if (pmkid)
7557 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
7558 if (bssid)
7559 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7560
7561 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
7562 nla_put_failure:
7563 return -ENOBUFS;
7564}
7565
7566
7567static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7568{
7569 struct i802_bss *bss = priv;
7570 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
7571 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
7572}
7573
7574
7575static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7576{
7577 struct i802_bss *bss = priv;
7578 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
7579 MAC2STR(bssid));
7580 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
7581}
7582
7583
7584static int nl80211_flush_pmkid(void *priv)
7585{
7586 struct i802_bss *bss = priv;
7587 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
7588 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
7589}
7590
7591
b14a210c
JB		 7592static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
7593 const u8 *replay_ctr)
7594{
7595 struct i802_bss *bss = priv;
7596 struct wpa_driver_nl80211_data *drv = bss->drv;
7597 struct nlattr *replay_nested;
7598 struct nl_msg *msg;
7599
7600 msg = nlmsg_alloc();
7601 if (!msg)
7602 return;
7603
9fb04070 7604 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 7605
7606 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7607
7608 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7609 if (!replay_nested)
7610 goto nla_put_failure;
7611
7612 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
7613 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
7614 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
7615 replay_ctr);
7616
7617 nla_nest_end(msg, replay_nested);
7618
7619 send_and_recv_msgs(drv, msg, NULL, NULL);
7620 return;
7621 nla_put_failure:
7622 nlmsg_free(msg);
7623}
7624
7625
39718852
JB		 7626static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
7627 const u8 *addr, int qos)
bcf24348 7628{
39718852
JB		 7629 /* send data frame to poll STA and check whether
7630 * this frame is ACKed */
bcf24348
JB		 7631 struct {
7632 struct ieee80211_hdr hdr;
7633 u16 qos_ctl;
7634 } STRUCT_PACKED nulldata;
7635 size_t size;
7636
7637 /* Send data frame to poll STA and check whether this frame is ACKed */
7638
7639 os_memset(&nulldata, 0, sizeof(nulldata));
7640
7641 if (qos) {
7642 nulldata.hdr.frame_control =
7643 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7644 WLAN_FC_STYPE_QOS_NULL);
7645 size = sizeof(nulldata);
7646 } else {
7647 nulldata.hdr.frame_control =
7648 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7649 WLAN_FC_STYPE_NULLFUNC);
7650 size = sizeof(struct ieee80211_hdr);
7651 }
7652
7653 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
7654 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7655 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7656 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7657
8cfa3527 7658 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0)
bcf24348
JB		 7659 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
7660 "send poll frame");
7661}
7662
39718852
JB		 7663static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
7664 int qos)
7665{
7666 struct i802_bss *bss = priv;
7667 struct wpa_driver_nl80211_data *drv = bss->drv;
7668 struct nl_msg *msg;
7669
7670 if (!drv->poll_command_supported) {
7671 nl80211_send_null_frame(bss, own_addr, addr, qos);
7672 return;
7673 }
7674
7675 msg = nlmsg_alloc();
7676 if (!msg)
7677 return;
7678
7679 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
7680
7681 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7682 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7683
7684 send_and_recv_msgs(drv, msg, NULL, NULL);
7685 return;
7686 nla_put_failure:
7687 nlmsg_free(msg);
7688}
7689
bcf24348 7690
29f338af
JM		 7691static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
7692{
7693 struct nl_msg *msg;
7694
7695 msg = nlmsg_alloc();
7696 if (!msg)
7697 return -ENOMEM;
7698
7699 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
7700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7701 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
7702 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
7703 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
7704nla_put_failure:
7705 nlmsg_free(msg);
7706 return -ENOBUFS;
7707}
7708
7709
7710static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
7711 int ctwindow)
7712{
7713 struct i802_bss *bss = priv;
7714
7715 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
7716 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
7717
7718 if (opp_ps != -1 || ctwindow != -1)
7719 return -1; /* Not yet supported */
7720
7721 if (legacy_ps == -1)
7722 return 0;
7723 if (legacy_ps != 0 && legacy_ps != 1)
7724 return -1; /* Not yet supported */
7725
7726 return nl80211_set_power_save(bss, legacy_ps);
7727}
7728
7729
03ea1786
AN		 7730#ifdef CONFIG_TDLS
7731
7732static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
7733 u8 dialog_token, u16 status_code,
7734 const u8 *buf, size_t len)
7735{
7736 struct i802_bss *bss = priv;
7737 struct wpa_driver_nl80211_data *drv = bss->drv;
7738 struct nl_msg *msg;
7739
7740 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7741 return -EOPNOTSUPP;
7742
7743 if (!dst)
7744 return -EINVAL;
7745
7746 msg = nlmsg_alloc();
7747 if (!msg)
7748 return -ENOMEM;
7749
7750 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
7751 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7752 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
7753 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
7754 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
7755 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
7756 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
7757
7758 return send_and_recv_msgs(drv, msg, NULL, NULL);
7759
7760nla_put_failure:
7761 nlmsg_free(msg);
7762 return -ENOBUFS;
7763}
7764
7765
7766static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
7767{
7768 struct i802_bss *bss = priv;
7769 struct wpa_driver_nl80211_data *drv = bss->drv;
7770 struct nl_msg *msg;
7771 enum nl80211_tdls_operation nl80211_oper;
7772
7773 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7774 return -EOPNOTSUPP;
7775
7776 switch (oper) {
7777 case TDLS_DISCOVERY_REQ:
7778 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
7779 break;
7780 case TDLS_SETUP:
7781 nl80211_oper = NL80211_TDLS_SETUP;
7782 break;
7783 case TDLS_TEARDOWN:
7784 nl80211_oper = NL80211_TDLS_TEARDOWN;
7785 break;
7786 case TDLS_ENABLE_LINK:
7787 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
7788 break;
7789 case TDLS_DISABLE_LINK:
7790 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
7791 break;
7792 case TDLS_ENABLE:
7793 return 0;
7794 case TDLS_DISABLE:
7795 return 0;
7796 default:
7797 return -EINVAL;
7798 }
7799
7800 msg = nlmsg_alloc();
7801 if (!msg)
7802 return -ENOMEM;
7803
7804 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
7805 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
7806 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7807 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7808
7809 return send_and_recv_msgs(drv, msg, NULL, NULL);
7810
7811nla_put_failure:
7812 nlmsg_free(msg);
7813 return -ENOBUFS;
7814}
7815
7816#endif /* CONFIG TDLS */
7817
7818
216eede8
DS		 7819#ifdef ANDROID
7820
7821typedef struct android_wifi_priv_cmd {
7822 char *buf;
7823 int used_len;
7824 int total_len;
7825} android_wifi_priv_cmd;
7826
7827static int drv_errors = 0;
7828
7829static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
7830{
7831 drv_errors++;
7832 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
7833 drv_errors = 0;
7834 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
7835 }
7836}
7837
7838
7839static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
7840{
7841 struct wpa_driver_nl80211_data *drv = bss->drv;
7842 struct ifreq ifr;
7843 android_wifi_priv_cmd priv_cmd;
7844 char buf[MAX_DRV_CMD_SIZE];
7845 int ret;
7846
7847 os_memset(&ifr, 0, sizeof(ifr));
7848 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
7849 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
7850
7851 os_memset(buf, 0, sizeof(buf));
7852 os_strlcpy(buf, cmd, sizeof(buf));
7853
7854 priv_cmd.buf = buf;
7855 priv_cmd.used_len = sizeof(buf);
7856 priv_cmd.total_len = sizeof(buf);
7857 ifr.ifr_data = &priv_cmd;
7858
7859 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
7860 if (ret < 0) {
7861 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
7862 __func__);
7863 wpa_driver_send_hang_msg(drv);
7864 return ret;
7865 }
7866
7867 drv_errors = 0;
7868 return 0;
7869}
7870
7871
7872static int android_pno_start(struct i802_bss *bss,
7873 struct wpa_driver_scan_params *params)
7874{
7875 struct wpa_driver_nl80211_data *drv = bss->drv;
7876 struct ifreq ifr;
7877 android_wifi_priv_cmd priv_cmd;
7878 int ret = 0, i = 0, bp;
7879 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
7880
7881 bp = WEXT_PNOSETUP_HEADER_SIZE;
7882 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
7883 buf[bp++] = WEXT_PNO_TLV_PREFIX;
7884 buf[bp++] = WEXT_PNO_TLV_VERSION;
7885 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
7886 buf[bp++] = WEXT_PNO_TLV_RESERVED;
7887
7888 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
7889 /* Check that there is enough space needed for 1 more SSID, the
7890 * other sections and null termination */
7891 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
7892 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
7893 break;
7894 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
7895 ssid[i].ssid, ssid[i].ssid_len);
7896 buf[bp++] = WEXT_PNO_SSID_SECTION;
7897 buf[bp++] = params->ssids[i].ssid_len;
7898 os_memcpy(&buf[bp], params->ssids[i].ssid,
7899 params->ssids[i].ssid_len);
7900 bp += params->ssids[i].ssid_len;
7901 i++;
7902 }
7903
7904 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
7905 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
7906 WEXT_PNO_SCAN_INTERVAL);
7907 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
7908
7909 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
7910 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
7911 WEXT_PNO_REPEAT);
7912 bp += WEXT_PNO_REPEAT_LENGTH;
7913
7914 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
7915 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
7916 WEXT_PNO_MAX_REPEAT);
7917 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
7918
7919 memset(&ifr, 0, sizeof(ifr));
7920 memset(&priv_cmd, 0, sizeof(priv_cmd));
7921 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
7922
7923 priv_cmd.buf = buf;
7924 priv_cmd.used_len = bp;
7925 priv_cmd.total_len = bp;
7926 ifr.ifr_data = &priv_cmd;
7927
7928 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
7929
7930 if (ret < 0) {
7931 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
7932 ret);
7933 wpa_driver_send_hang_msg(drv);
7934 return ret;
7935 }
7936
7937 drv_errors = 0;
7938
7939 return android_priv_cmd(bss, "PNOFORCE 1");
7940}
7941
7942
7943static int android_pno_stop(struct i802_bss *bss)
7944{
7945 return android_priv_cmd(bss, "PNOFORCE 0");
7946}
7947
7948#endif /* ANDROID */
7949
7950
3f5285e8
JM		 7951const struct wpa_driver_ops wpa_driver_nl80211_ops = {
7952 .name = "nl80211",
7953 .desc = "Linux nl80211/cfg80211",
7954 .get_bssid = wpa_driver_nl80211_get_bssid,
7955 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 7956 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 7957 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 7958 .sched_scan = wpa_driver_nl80211_sched_scan,
7959 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 7960 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
7961 .deauthenticate = wpa_driver_nl80211_deauthenticate,
7962 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 7963 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 7964 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 7965 .global_init = nl80211_global_init,
7966 .global_deinit = nl80211_global_deinit,
7967 .init2 = wpa_driver_nl80211_init,
3f5285e8 7968 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 7969 .get_capa = wpa_driver_nl80211_get_capa,
7970 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 7971 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 7972 .set_country = wpa_driver_nl80211_set_country,
19c3b566 7973 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 7974 .if_add = wpa_driver_nl80211_if_add,
7975 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 7976 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 7977 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 7978 .sta_add = wpa_driver_nl80211_sta_add,
7979 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 7980 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 7981 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 7982#ifdef HOSTAPD
7983 .hapd_init = i802_init,
c5121837 7984 .hapd_deinit = i802_deinit,
f7b3920c
JM		 7985 .set_wds_sta = i802_set_wds_sta,
7986#endif /* HOSTAPD */
7987#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 7988 .get_seqnum = i802_get_seqnum,
7989 .flush = i802_flush,
7990 .read_sta_data = i802_read_sta_data,
c5121837
JM		 7991 .get_inact_sec = i802_get_inact_sec,
7992 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 7993 .set_rts = i802_set_rts,
7994 .set_frag = i802_set_frag,
c5121837 7995 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 7996 .set_sta_vlan = i802_set_sta_vlan,
ee7ab173
JB		 7997 .sta_deauth = i802_sta_deauth,
7998 .sta_disassoc = i802_sta_disassoc,
7999#endif /* HOSTAPD || CONFIG_AP */
e3802622 8000 .set_freq = i802_set_freq,
58f6fbe0 8001 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 8002 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 8003 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
8004 .cancel_remain_on_channel =
8005 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 8006 .probe_req_report = wpa_driver_nl80211_probe_req_report,
af473088 8007 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 8008 .resume = wpa_driver_nl80211_resume,
7b90c16a 8009 .send_ft_action = nl80211_send_ft_action,
b625473c 8010 .signal_monitor = nl80211_signal_monitor,
1c5c7273 8011 .signal_poll = nl80211_signal_poll,
b91ab76e 8012 .send_frame = nl80211_send_frame,
57ebba59 8013 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 8014 .set_param = nl80211_set_param,
6859f1cb 8015 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 8016 .add_pmkid = nl80211_add_pmkid,
8017 .remove_pmkid = nl80211_remove_pmkid,
8018 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 8019 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 8020 .poll_client = nl80211_poll_client,
29f338af 8021 .set_p2p_powersave = nl80211_set_p2p_powersave,
03ea1786
AN		 8022#ifdef CONFIG_TDLS
8023 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
8024 .tdls_oper = nl80211_tdls_oper,
8025#endif /* CONFIG_TDLS */
3f5285e8 8026};
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