]> git.ipfire.org Git - thirdparty/hostap.git/blame - src/drivers/driver_nl80211.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
random: Read /dev/random in the background with eloop read socket
[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>
7e45830a 31#include "nl80211_copy.h"
625f587b 32
3f5285e8 33#include "common.h"
1b648c7e 34#include "eloop.h"
f2ed8023 35#include "utils/list.h"
1b648c7e 36#include "common/ieee802_11_defs.h"
e2d02c29 37#include "netlink.h"
34f2f814 38#include "linux_ioctl.h"
e2d02c29
JM		 39#include "radiotap.h"
40#include "radiotap_iter.h"
8401a6b0 41#include "rfkill.h"
1b648c7e 42#include "driver.h"
0915d02c 43
c5121837
JM		 44#ifdef CONFIG_LIBNL20
45/* libnl 2.0 compatibility code */
2e8eac2d 46#define nl_handle nl_sock
a65a9aed
JB		 47#define nl80211_handle_alloc nl_socket_alloc_cb
48#define nl80211_handle_destroy nl_socket_free
49#else
50/*
51 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
52 * but when you free a socket again it will mess up its bitmap and
53 * and use the wrong number the next time it needs a socket ID.
54 * Therefore, we wrap the handle alloc/destroy and add our own pid
55 * accounting.
56 */
57static uint32_t port_bitmap[32] = { 0 };
58
59static struct nl_handle *nl80211_handle_alloc(void *cb)
60{
61 struct nl_handle *handle;
62 uint32_t pid = getpid() & 0x3FFFFF;
63 int i;
64
65 handle = nl_handle_alloc_cb(cb);
66
67 for (i = 0; i < 1024; i++) {
68 if (port_bitmap[i / 32] & (1 << (i % 32)))
69 continue;
70 port_bitmap[i / 32] |= 1 << (i % 32);
71 pid += i << 22;
72 break;
73 }
74
75 nl_socket_set_local_port(handle, pid);
76
77 return handle;
78}
79
80static void nl80211_handle_destroy(struct nl_handle *handle)
81{
82 uint32_t port = nl_socket_get_local_port(handle);
83
84 port >>= 22;
85 port_bitmap[port / 32] &= ~(1 << (port % 32));
86
87 nl_handle_destroy(handle);
88}
c5121837
JM		 89#endif /* CONFIG_LIBNL20 */
90
c5121837 91
3f5285e8
JM		 92#ifndef IFF_LOWER_UP
93#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
94#endif
95#ifndef IFF_DORMANT
96#define IFF_DORMANT 0x20000 /* driver signals dormant */
97#endif
98
99#ifndef IF_OPER_DORMANT
100#define IF_OPER_DORMANT 5
101#endif
102#ifndef IF_OPER_UP
103#define IF_OPER_UP 6
104#endif
105
f2ed8023
JM		 106struct nl80211_global {
107 struct dl_list interfaces;
108};
109
c5121837 110struct i802_bss {
a2e40bb6 111 struct wpa_driver_nl80211_data *drv;
c5121837 112 struct i802_bss *next;
b4fd6fab 113 int ifindex;
a2e40bb6 114 char ifname[IFNAMSIZ + 1];
e17a2477 115 char brname[IFNAMSIZ];
c5121837 116 unsigned int beacon_set:1;
e17a2477
JM		 117 unsigned int added_if_into_bridge:1;
118 unsigned int added_bridge:1;
c5121837 119};
3f5285e8
JM		 120
121struct wpa_driver_nl80211_data {
f2ed8023
JM		 122 struct nl80211_global *global;
123 struct dl_list list;
124 u8 addr[ETH_ALEN];
6859f1cb 125 char phyname[32];
3f5285e8 126 void *ctx;
08063178 127 struct netlink_data *netlink;
c5121837 128 int ioctl_sock; /* socket for ioctl() use */
3f5285e8 129 int ifindex;
7524cfb1 130 int if_removed;
a63063b4 131 int if_disabled;
8401a6b0 132 struct rfkill_data *rfkill;
c2a04078
JM		 133 struct wpa_driver_capa capa;
134 int has_capability;
c2a04078 135
3f5285e8
JM		 136 int operstate;
137
3f5285e8
JM		 138 int scan_complete_events;
139
140 struct nl_handle *nl_handle;
335ce76b 141 struct nl_handle *nl_handle_event;
5582a5d1 142 struct nl_handle *nl_handle_preq;
3f5285e8 143 struct nl_cache *nl_cache;
335ce76b 144 struct nl_cache *nl_cache_event;
5582a5d1 145 struct nl_cache *nl_cache_preq;
3f5285e8
JM		 146 struct nl_cb *nl_cb;
147 struct genl_family *nl80211;
1c873584 148
e6b8efeb 149 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 150 u8 bssid[ETH_ALEN];
151 int associated;
fd05d64e
JM		 152 u8 ssid[32];
153 size_t ssid_len;
ad1e68e6
JM		 154 int nlmode;
155 int ap_scan_as_station;
4832ecd7 156 unsigned int assoc_freq;
d2440ba0 157
0915d02c
JM		 158 int monitor_sock;
159 int monitor_ifidx;
4e5cb1a3 160 int disable_11b_rates;
7da3abe7 161
55777702
JM		 162 unsigned int pending_remain_on_chan:1;
163
164 u64 remain_on_chan_cookie;
58f6fbe0 165 u64 send_action_cookie;
c5121837 166
5582a5d1
JB		 167 unsigned int last_mgmt_freq;
168
3812464c
JM		 169 struct wpa_driver_scan_filter *filter_ssids;
170 size_t num_filter_ssids;
171
a2e40bb6
FF		 172 struct i802_bss first_bss;
173
c5121837 174#ifdef HOSTAPD
c5121837 175 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 176
177 int default_if_indices[16];
178 int *if_indices;
179 int num_if_indices;
180
c5121837
JM		 181 int last_freq;
182 int last_freq_ht;
c5121837 183#endif /* HOSTAPD */
3f5285e8
JM		 184};
185
186
187static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
188 void *timeout_ctx);
ad1e68e6 189static int wpa_driver_nl80211_set_mode(void *priv, int mode);
362f781e 190static int
7524cfb1 191wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 192static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 193 const u8 *addr, int cmd, u16 reason_code,
194 int local_state_change);
460456f8
JM		 195static void nl80211_remove_monitor_interface(
196 struct wpa_driver_nl80211_data *drv);
5582a5d1 197static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 198 unsigned int freq, unsigned int wait,
199 const u8 *buf, size_t buf_len, u64 *cookie);
5582a5d1 200static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
0915d02c 201
072ad14c 202#ifdef HOSTAPD
2135f224
JM		 203static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
204static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 205static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 206static int wpa_driver_nl80211_if_remove(void *priv,
207 enum wpa_driver_if_type type,
208 const char *ifname);
37eb8da9
JM		 209#else /* HOSTAPD */
210static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
211{
212 return 0;
213}
072ad14c
JM		 214#endif /* HOSTAPD */
215
e3802622 216static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 217static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
218 int ifindex, int disabled);
504e905c 219
3f5285e8 220
6241fcb1
JM		 221/* nl80211 code */
222static int ack_handler(struct nl_msg *msg, void *arg)
223{
224 int *err = arg;
225 *err = 0;
226 return NL_STOP;
227}
228
229static int finish_handler(struct nl_msg *msg, void *arg)
230{
8e8df255
JM		 231 int *ret = arg;
232 *ret = 0;
6241fcb1
JM		 233 return NL_SKIP;
234}
235
236static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
237 void *arg)
238{
239 int *ret = arg;
240 *ret = err->error;
241 return NL_SKIP;
242}
243
5b7b85f6
JM		 244
245static int no_seq_check(struct nl_msg *msg, void *arg)
246{
247 return NL_OK;
248}
249
250
58f6fbe0
JM		 251static int send_and_recv(struct wpa_driver_nl80211_data *drv,
252 struct nl_handle *nl_handle, struct nl_msg *msg,
253 int (*valid_handler)(struct nl_msg *, void *),
254 void *valid_data)
6241fcb1
JM		 255{
256 struct nl_cb *cb;
257 int err = -ENOMEM;
258
259 cb = nl_cb_clone(drv->nl_cb);
260 if (!cb)
261 goto out;
262
58f6fbe0 263 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 264 if (err < 0)
265 goto out;
266
267 err = 1;
268
269 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 270 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 271 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
272
273 if (valid_handler)
274 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
275 valid_handler, valid_data);
276
277 while (err > 0)
58f6fbe0 278 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 279 out:
280 nl_cb_put(cb);
281 nlmsg_free(msg);
282 return err;
283}
284
285
58f6fbe0
JM		 286static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
287 struct nl_msg *msg,
288 int (*valid_handler)(struct nl_msg *, void *),
289 void *valid_data)
290{
291 return send_and_recv(drv, drv->nl_handle, msg, valid_handler,
292 valid_data);
293}
294
295
97865538
JM		 296struct family_data {
297 const char *group;
298 int id;
299};
300
301
302static int family_handler(struct nl_msg *msg, void *arg)
303{
304 struct family_data *res = arg;
305 struct nlattr *tb[CTRL_ATTR_MAX + 1];
306 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
307 struct nlattr *mcgrp;
308 int i;
309
310 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
311 genlmsg_attrlen(gnlh, 0), NULL);
312 if (!tb[CTRL_ATTR_MCAST_GROUPS])
313 return NL_SKIP;
314
315 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
316 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
317 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
318 nla_len(mcgrp), NULL);
319 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
320 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
321 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
322 res->group,
323 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
324 continue;
325 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
326 break;
327 };
328
329 return NL_SKIP;
330}
331
332
333static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
334 const char *family, const char *group)
335{
336 struct nl_msg *msg;
337 int ret = -1;
338 struct family_data res = { group, -ENOENT };
339
340 msg = nlmsg_alloc();
341 if (!msg)
342 return -ENOMEM;
343 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
344 0, 0, CTRL_CMD_GETFAMILY, 0);
345 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
346
347 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
348 msg = NULL;
349 if (ret == 0)
350 ret = res.id;
351
352nla_put_failure:
353 nlmsg_free(msg);
354 return ret;
355}
356
357
3f5285e8
JM		 358static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
359{
a2e40bb6
FF		 360 struct i802_bss *bss = priv;
361 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 362 if (!drv->associated)
363 return -1;
364 os_memcpy(bssid, drv->bssid, ETH_ALEN);
365 return 0;
3f5285e8
JM		 366}
367
368
3f5285e8
JM		 369static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
370{
a2e40bb6
FF		 371 struct i802_bss *bss = priv;
372 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 373 if (!drv->associated)
374 return -1;
375 os_memcpy(ssid, drv->ssid, drv->ssid_len);
376 return drv->ssid_len;
3f5285e8
JM		 377}
378
379
7524cfb1 380static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 381 char *buf, size_t len, int del)
3f5285e8
JM		 382{
383 union wpa_event_data event;
384
385 os_memset(&event, 0, sizeof(event));
386 if (len > sizeof(event.interface_status.ifname))
387 len = sizeof(event.interface_status.ifname) - 1;
388 os_memcpy(event.interface_status.ifname, buf, len);
389 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
390 EVENT_INTERFACE_ADDED;
391
392 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
393 del ? "DEL" : "NEW",
394 event.interface_status.ifname,
395 del ? "removed" : "added");
396
a2e40bb6 397 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
7524cfb1
JM		 398 if (del)
399 drv->if_removed = 1;
400 else
401 drv->if_removed = 0;
402 }
403
08063178 404 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 405}
406
407
7524cfb1 408static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 409 u8 *buf, size_t len)
7524cfb1 410{
62d680c3 411 int attrlen, rta_len;
7524cfb1
JM		 412 struct rtattr *attr;
413
62d680c3
JM		 414 attrlen = len;
415 attr = (struct rtattr *) buf;
7524cfb1
JM		 416
417 rta_len = RTA_ALIGN(sizeof(struct rtattr));
418 while (RTA_OK(attr, attrlen)) {
419 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 420 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 421 == 0)
422 return 1;
423 else
424 break;
425 }
426 attr = RTA_NEXT(attr, attrlen);
427 }
428
429 return 0;
430}
431
432
433static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 434 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 435{
436 if (drv->ifindex == ifindex)
437 return 1;
438
62d680c3 439 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 440 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 441 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
442 "interface");
443 wpa_driver_nl80211_finish_drv_init(drv);
444 return 1;
445 }
446
447 return 0;
448}
449
450
62d680c3
JM		 451static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
452 struct ifinfomsg *ifi,
453 u8 *buf, size_t len)
3f5285e8 454{
08063178 455 struct wpa_driver_nl80211_data *drv = ctx;
62d680c3
JM		 456 int attrlen, rta_len;
457 struct rtattr *attr;
97cfcf64 458 u32 brid = 0;
3f5285e8 459
97cfcf64
B		 460 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, buf, len) &&
461 !have_ifidx(drv, ifi->ifi_index)) {
462 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
463 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 464 return;
465 }
466
467 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
468 "(%s%s%s%s)",
469 drv->operstate, ifi->ifi_flags,
470 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
471 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
472 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
473 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 474
475 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
476 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
477 drv->if_disabled = 1;
478 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL);
479 }
480
481 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
482 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
483 drv->if_disabled = 0;
484 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
485 }
486
3f5285e8
JM		 487 /*
488 * Some drivers send the association event before the operup event--in
489 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
490 * fails. This will hit us when wpa_supplicant does not need to do
491 * IEEE 802.1X authentication
492 */
493 if (drv->operstate == 1 &&
494 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
495 !(ifi->ifi_flags & IFF_RUNNING))
08063178 496 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 497 -1, IF_OPER_UP);
3f5285e8 498
62d680c3
JM		 499 attrlen = len;
500 attr = (struct rtattr *) buf;
3f5285e8
JM		 501 rta_len = RTA_ALIGN(sizeof(struct rtattr));
502 while (RTA_OK(attr, attrlen)) {
d8816397 503 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 504 wpa_driver_nl80211_event_link(
08063178 505 drv,
7524cfb1
JM		 506 ((char *) attr) + rta_len,
507 attr->rta_len - rta_len, 0);
97cfcf64
B		 508 } else if (attr->rta_type == IFLA_MASTER)
509 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 510 attr = RTA_NEXT(attr, attrlen);
511 }
97cfcf64 512
37eb8da9 513#ifdef HOSTAPD
97cfcf64
B		 514 if (ifi->ifi_family == AF_BRIDGE && brid) {
515 /* device has been added to bridge */
516 char namebuf[IFNAMSIZ];
517 if_indextoname(brid, namebuf);
518 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
519 brid, namebuf);
520 add_ifidx(drv, brid);
521 }
37eb8da9 522#endif /* HOSTAPD */
3f5285e8
JM		 523}
524
525
62d680c3
JM		 526static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
527 struct ifinfomsg *ifi,
528 u8 *buf, size_t len)
3f5285e8 529{
08063178 530 struct wpa_driver_nl80211_data *drv = ctx;
62d680c3
JM		 531 int attrlen, rta_len;
532 struct rtattr *attr;
97cfcf64 533 u32 brid = 0;
3f5285e8 534
62d680c3
JM		 535 attrlen = len;
536 attr = (struct rtattr *) buf;
3f5285e8
JM		 537
538 rta_len = RTA_ALIGN(sizeof(struct rtattr));
539 while (RTA_OK(attr, attrlen)) {
540 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 541 wpa_driver_nl80211_event_link(
08063178 542 drv,
7524cfb1
JM		 543 ((char *) attr) + rta_len,
544 attr->rta_len - rta_len, 1);
97cfcf64
B		 545 } else if (attr->rta_type == IFLA_MASTER)
546 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 547 attr = RTA_NEXT(attr, attrlen);
548 }
97cfcf64 549
37eb8da9 550#ifdef HOSTAPD
97cfcf64
B		 551 if (ifi->ifi_family == AF_BRIDGE && brid) {
552 /* device has been removed from bridge */
553 char namebuf[IFNAMSIZ];
554 if_indextoname(brid, namebuf);
555 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
556 "%s", brid, namebuf);
557 del_ifidx(drv, brid);
558 }
37eb8da9 559#endif /* HOSTAPD */
3f5285e8
JM		 560}
561
562
c2a04078
JM		 563static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
564 const u8 *frame, size_t len)
565{
566 const struct ieee80211_mgmt *mgmt;
567 union wpa_event_data event;
568
569 mgmt = (const struct ieee80211_mgmt *) frame;
570 if (len < 24 + sizeof(mgmt->u.auth)) {
571 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
572 "frame");
573 return;
574 }
575
e6b8efeb 576 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 577 os_memset(&event, 0, sizeof(event));
578 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
579 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
580 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
581 if (len > 24 + sizeof(mgmt->u.auth)) {
582 event.auth.ies = mgmt->u.auth.variable;
583 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
584 }
585
586 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
587}
588
589
590static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
591 const u8 *frame, size_t len)
592{
593 const struct ieee80211_mgmt *mgmt;
594 union wpa_event_data event;
595 u16 status;
596
597 mgmt = (const struct ieee80211_mgmt *) frame;
598 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
599 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
600 "frame");
601 return;
602 }
603
604 status = le_to_host16(mgmt->u.assoc_resp.status_code);
605 if (status != WLAN_STATUS_SUCCESS) {
efa46078 606 os_memset(&event, 0, sizeof(event));
59ddf221 607 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 608 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
609 event.assoc_reject.resp_ies =
610 (u8 *) mgmt->u.assoc_resp.variable;
611 event.assoc_reject.resp_ies_len =
612 len - 24 - sizeof(mgmt->u.assoc_resp);
613 }
614 event.assoc_reject.status_code = status;
615
616 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 617 return;
618 }
619
620 drv->associated = 1;
621 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
622
623 os_memset(&event, 0, sizeof(event));
624 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
625 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
626 event.assoc_info.resp_ies_len =
efa46078 627 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 628 }
629
4832ecd7
JM		 630 event.assoc_info.freq = drv->assoc_freq;
631
c2a04078
JM		 632 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
633}
634
c1bb3e0a 635
da72a1c1
ZY		 636static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
637 enum nl80211_commands cmd, struct nlattr *status,
638 struct nlattr *addr, struct nlattr *req_ie,
639 struct nlattr *resp_ie)
640{
641 union wpa_event_data event;
642
7da2c527
JM		 643 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
644 /*
645 * Avoid reporting two association events that would confuse
646 * the core code.
647 */
648 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
649 "when using userspace SME", cmd);
650 return;
651 }
652
da72a1c1
ZY		 653 os_memset(&event, 0, sizeof(event));
654 if (cmd == NL80211_CMD_CONNECT &&
655 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 656 if (addr)
657 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 658 if (resp_ie) {
659 event.assoc_reject.resp_ies = nla_data(resp_ie);
660 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
661 }
662 event.assoc_reject.status_code = nla_get_u16(status);
663 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
664 return;
665 }
666
667 drv->associated = 1;
668 if (addr)
669 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
670
671 if (req_ie) {
672 event.assoc_info.req_ies = nla_data(req_ie);
673 event.assoc_info.req_ies_len = nla_len(req_ie);
674 }
675 if (resp_ie) {
676 event.assoc_info.resp_ies = nla_data(resp_ie);
677 event.assoc_info.resp_ies_len = nla_len(resp_ie);
678 }
679
680 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
681}
c2a04078 682
c1bb3e0a 683
da1fb17c
JM		 684static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
685 enum nl80211_commands cmd, struct nlattr *addr)
686{
687 union wpa_event_data event;
688 enum wpa_event_type ev;
689
690 if (nla_len(addr) != ETH_ALEN)
691 return;
692
693 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
694 cmd, MAC2STR((u8 *) nla_data(addr)));
695
696 if (cmd == NL80211_CMD_AUTHENTICATE)
697 ev = EVENT_AUTH_TIMED_OUT;
698 else if (cmd == NL80211_CMD_ASSOCIATE)
699 ev = EVENT_ASSOC_TIMED_OUT;
700 else
701 return;
702
703 os_memset(&event, 0, sizeof(event));
704 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
705 wpa_supplicant_event(drv->ctx, ev, &event);
706}
707
708
5582a5d1
JB		 709static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
710 struct nlattr *freq, const u8 *frame, size_t len)
58f6fbe0
JM		 711{
712 const struct ieee80211_mgmt *mgmt;
713 union wpa_event_data event;
714 u16 fc, stype;
715
716 mgmt = (const struct ieee80211_mgmt *) frame;
717 if (len < 24) {
718 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
719 return;
720 }
721
722 fc = le_to_host16(mgmt->frame_control);
723 stype = WLAN_FC_GET_STYPE(fc);
724
725 os_memset(&event, 0, sizeof(event));
5582a5d1 726 if (freq) {
58f6fbe0 727 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 728 drv->last_mgmt_freq = event.rx_action.freq;
729 }
730 if (stype == WLAN_FC_STYPE_ACTION) {
731 event.rx_action.da = mgmt->da;
732 event.rx_action.sa = mgmt->sa;
733 event.rx_action.bssid = mgmt->bssid;
734 event.rx_action.category = mgmt->u.action.category;
735 event.rx_action.data = &mgmt->u.action.category + 1;
736 event.rx_action.len = frame + len - event.rx_action.data;
737 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
738 } else {
739 event.rx_mgmt.frame = frame;
740 event.rx_mgmt.frame_len = len;
741 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
742 }
58f6fbe0
JM		 743}
744
745
746static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
747 struct nlattr *cookie, const u8 *frame,
748 size_t len, struct nlattr *ack)
749{
750 union wpa_event_data event;
751 const struct ieee80211_hdr *hdr;
752 u16 fc;
753 u64 cookie_val;
754
755 if (!cookie)
756 return;
757
758 cookie_val = nla_get_u64(cookie);
4796272f
JM		 759 wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s "
760 "(ack=%d)",
58f6fbe0
JM		 761 (long long unsigned int) cookie_val,
762 cookie_val == drv->send_action_cookie ?
4796272f 763 " (match)" : " (unknown)", ack != NULL);
58f6fbe0
JM		 764 if (cookie_val != drv->send_action_cookie)
765 return;
766
767 hdr = (const struct ieee80211_hdr *) frame;
768 fc = le_to_host16(hdr->frame_control);
769
770 os_memset(&event, 0, sizeof(event));
771 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
772 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
773 event.tx_status.dst = hdr->addr1;
774 event.tx_status.data = frame;
775 event.tx_status.data_len = len;
776 event.tx_status.ack = ack != NULL;
777 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
778}
779
780
0544b242
JM		 781static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
782 enum wpa_event_type type,
783 const u8 *frame, size_t len)
784{
785 const struct ieee80211_mgmt *mgmt;
786 union wpa_event_data event;
787 const u8 *bssid = NULL;
788 u16 reason_code = 0;
789
cb30b297
PS		 790 mgmt = (const struct ieee80211_mgmt *) frame;
791 if (len >= 24) {
792 bssid = mgmt->bssid;
793
794 if (drv->associated != 0 &&
795 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
796 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
797 /*
798 * We have presumably received this deauth as a
799 * response to a clear_state_mismatch() outgoing
800 * deauth. Don't let it take us offline!
801 */
802 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
803 "from Unknown BSSID " MACSTR " -- ignoring",
804 MAC2STR(bssid));
805 return;
806 }
807 }
808
0544b242
JM		 809 drv->associated = 0;
810 os_memset(&event, 0, sizeof(event));
811
0544b242
JM		 812 /* Note: Same offset for Reason Code in both frame subtypes */
813 if (len >= 24 + sizeof(mgmt->u.deauth))
814 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
815
816 if (type == EVENT_DISASSOC) {
817 event.disassoc_info.addr = bssid;
818 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 819 if (frame + len > mgmt->u.disassoc.variable) {
820 event.disassoc_info.ie = mgmt->u.disassoc.variable;
821 event.disassoc_info.ie_len = frame + len -
822 mgmt->u.disassoc.variable;
823 }
0544b242
JM		 824 } else {
825 event.deauth_info.addr = bssid;
826 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 827 if (frame + len > mgmt->u.deauth.variable) {
828 event.deauth_info.ie = mgmt->u.deauth.variable;
829 event.deauth_info.ie_len = frame + len -
830 mgmt->u.deauth.variable;
831 }
0544b242
JM		 832 }
833
834 wpa_supplicant_event(drv->ctx, type, &event);
835}
836
837
7d878ca7
JM		 838static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
839 enum wpa_event_type type,
840 const u8 *frame, size_t len)
841{
842 const struct ieee80211_mgmt *mgmt;
843 union wpa_event_data event;
844 u16 reason_code = 0;
845
846 if (len < 24)
847 return;
848
849 mgmt = (const struct ieee80211_mgmt *) frame;
850
851 os_memset(&event, 0, sizeof(event));
852 /* Note: Same offset for Reason Code in both frame subtypes */
853 if (len >= 24 + sizeof(mgmt->u.deauth))
854 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
855
856 if (type == EVENT_UNPROT_DISASSOC) {
857 event.unprot_disassoc.sa = mgmt->sa;
858 event.unprot_disassoc.da = mgmt->da;
859 event.unprot_disassoc.reason_code = reason_code;
860 } else {
861 event.unprot_deauth.sa = mgmt->sa;
862 event.unprot_deauth.da = mgmt->da;
863 event.unprot_deauth.reason_code = reason_code;
864 }
865
866 wpa_supplicant_event(drv->ctx, type, &event);
867}
868
869
c2a04078 870static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 871 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 872 struct nlattr *addr, struct nlattr *timed_out,
873 struct nlattr *freq, struct nlattr *ack,
874 struct nlattr *cookie)
c2a04078 875{
da1fb17c
JM		 876 if (timed_out && addr) {
877 mlme_timeout_event(drv, cmd, addr);
878 return;
879 }
880
c2a04078
JM		 881 if (frame == NULL) {
882 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
883 "data", cmd);
884 return;
885 }
886
887 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
888 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
889 nla_data(frame), nla_len(frame));
890
891 switch (cmd) {
892 case NL80211_CMD_AUTHENTICATE:
893 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
894 break;
895 case NL80211_CMD_ASSOCIATE:
896 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
897 break;
898 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 899 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
900 nla_data(frame), nla_len(frame));
c2a04078
JM		 901 break;
902 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 903 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
904 nla_data(frame), nla_len(frame));
c2a04078 905 break;
bd94971e 906 case NL80211_CMD_FRAME:
5582a5d1 907 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
58f6fbe0 908 break;
bd94971e 909 case NL80211_CMD_FRAME_TX_STATUS:
58f6fbe0
JM		 910 mlme_event_action_tx_status(drv, cookie, nla_data(frame),
911 nla_len(frame), ack);
912 break;
7d878ca7
JM		 913 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
914 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
915 nla_data(frame), nla_len(frame));
916 break;
917 case NL80211_CMD_UNPROT_DISASSOCIATE:
918 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
919 nla_data(frame), nla_len(frame));
920 break;
c2a04078
JM		 921 default:
922 break;
923 }
924}
925
926
35583f3f
JM		 927static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
928 struct nlattr *tb[])
929{
930 union wpa_event_data data;
931
932 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
933 os_memset(&data, 0, sizeof(data));
934 if (tb[NL80211_ATTR_MAC]) {
935 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
936 nla_data(tb[NL80211_ATTR_MAC]),
937 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 938 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 939 }
940 if (tb[NL80211_ATTR_KEY_SEQ]) {
941 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
942 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
943 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
944 }
945 if (tb[NL80211_ATTR_KEY_TYPE]) {
946 enum nl80211_key_type key_type =
947 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
948 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
949 if (key_type == NL80211_KEYTYPE_PAIRWISE)
950 data.michael_mic_failure.unicast = 1;
951 } else
952 data.michael_mic_failure.unicast = 1;
953
954 if (tb[NL80211_ATTR_KEY_IDX]) {
955 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
956 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
957 }
958
959 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
960}
961
962
5cc4d64b
JM		 963static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
964 struct nlattr *tb[])
965{
966 if (tb[NL80211_ATTR_MAC] == NULL) {
967 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
968 "event");
969 return;
970 }
971 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
972 drv->associated = 1;
973 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
974 MAC2STR(drv->bssid));
975
976 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
977}
978
979
55777702
JM		 980static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
981 int cancel_event, struct nlattr *tb[])
982{
983 unsigned int freq, chan_type, duration;
984 union wpa_event_data data;
985 u64 cookie;
986
987 if (tb[NL80211_ATTR_WIPHY_FREQ])
988 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
989 else
990 freq = 0;
991
992 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
993 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
994 else
995 chan_type = 0;
996
997 if (tb[NL80211_ATTR_DURATION])
998 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
999 else
1000 duration = 0;
1001
1002 if (tb[NL80211_ATTR_COOKIE])
1003 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1004 else
1005 cookie = 0;
1006
1007 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1008 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1009 cancel_event, freq, chan_type, duration,
1010 (long long unsigned int) cookie,
1011 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1012
1013 if (cookie != drv->remain_on_chan_cookie)
1014 return; /* not for us */
1015
1016 drv->pending_remain_on_chan = !cancel_event;
1017
1018 os_memset(&data, 0, sizeof(data));
1019 data.remain_on_channel.freq = freq;
1020 data.remain_on_channel.duration = duration;
1021 wpa_supplicant_event(drv->ctx, cancel_event ?
1022 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1023 EVENT_REMAIN_ON_CHANNEL, &data);
1024}
1025
1026
8d923a4a
JM		 1027static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1028 struct nlattr *tb[])
1029{
1030 union wpa_event_data event;
1031 struct nlattr *nl;
1032 int rem;
1033 struct scan_info *info;
1034#define MAX_REPORT_FREQS 50
1035 int freqs[MAX_REPORT_FREQS];
1036 int num_freqs = 0;
1037
1038 os_memset(&event, 0, sizeof(event));
1039 info = &event.scan_info;
1040 info->aborted = aborted;
1041
1042 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1043 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1044 struct wpa_driver_scan_ssid *s =
1045 &info->ssids[info->num_ssids];
1046 s->ssid = nla_data(nl);
1047 s->ssid_len = nla_len(nl);
1048 info->num_ssids++;
1049 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1050 break;
1051 }
1052 }
1053 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1054 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1055 {
1056 freqs[num_freqs] = nla_get_u32(nl);
1057 num_freqs++;
1058 if (num_freqs == MAX_REPORT_FREQS - 1)
1059 break;
1060 }
1061 info->freqs = freqs;
1062 info->num_freqs = num_freqs;
1063 }
1064 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1065}
1066
1067
60a972a6
JM		 1068static int get_link_signal(struct nl_msg *msg, void *arg)
1069{
1070 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1071 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1072 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1073 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1074 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1075 };
7ee35bf3
PS		 1076 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1077 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1078 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1079 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1080 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1081 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1082 };
1083 struct signal_change *sig_change = arg;
60a972a6
JM		 1084
1085 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1086 genlmsg_attrlen(gnlh, 0), NULL);
1087 if (!tb[NL80211_ATTR_STA_INFO] ||
1088 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1089 tb[NL80211_ATTR_STA_INFO], policy))
1090 return NL_SKIP;
1091 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1092 return NL_SKIP;
1093
7ee35bf3
PS		 1094 sig_change->current_signal =
1095 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1096
1097 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1098 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1099 sinfo[NL80211_STA_INFO_TX_BITRATE],
1100 rate_policy)) {
1101 sig_change->current_txrate = 0;
1102 } else {
1103 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1104 sig_change->current_txrate =
1105 nla_get_u16(rinfo[
1106 NL80211_RATE_INFO_BITRATE]) * 100;
1107 }
1108 }
1109 }
1110
60a972a6
JM		 1111 return NL_SKIP;
1112}
1113
1114
1115static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
7ee35bf3 1116 struct signal_change *sig)
60a972a6
JM		 1117{
1118 struct nl_msg *msg;
1119
7ee35bf3
PS		 1120 sig->current_signal = -9999;
1121 sig->current_txrate = 0;
60a972a6
JM		 1122
1123 msg = nlmsg_alloc();
1124 if (!msg)
1125 return -ENOMEM;
1126
1127 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1128 0, NL80211_CMD_GET_STATION, 0);
1129
1130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1131 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1132
1133 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1134 nla_put_failure:
1135 return -ENOBUFS;
1136}
1137
1138
7ee35bf3
PS		 1139static int get_link_noise(struct nl_msg *msg, void *arg)
1140{
1141 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1142 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1143 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1144 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1145 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1146 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1147 };
1148 struct signal_change *sig_change = arg;
1149
1150 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1151 genlmsg_attrlen(gnlh, 0), NULL);
1152
1153 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1154 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1155 return NL_SKIP;
1156 }
1157
1158 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1159 tb[NL80211_ATTR_SURVEY_INFO],
1160 survey_policy)) {
1161 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1162 "attributes!");
1163 return NL_SKIP;
1164 }
1165
1166 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1167 return NL_SKIP;
1168
1169 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1170 sig_change->frequency)
1171 return NL_SKIP;
1172
1173 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1174 return NL_SKIP;
1175
1176 sig_change->current_noise =
1177 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1178
1179 return NL_SKIP;
1180}
1181
1182
1183static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1184 struct signal_change *sig_change)
1185{
1186 struct nl_msg *msg;
1187
1188 sig_change->current_noise = 9999;
1189 sig_change->frequency = drv->assoc_freq;
1190
1191 msg = nlmsg_alloc();
1192 if (!msg)
1193 return -ENOMEM;
1194
1195 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1196 NLM_F_DUMP, NL80211_CMD_GET_SURVEY, 0);
1197
1198 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1199
1200 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1201 nla_put_failure:
1202 return -ENOBUFS;
1203}
1204
1205
93910401
JM		 1206static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1207 struct nlattr *tb[])
1208{
1209 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1210 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1211 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1212 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1213 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1214 };
1215 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1216 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1217 union wpa_event_data ed;
7ee35bf3
PS		 1218 struct signal_change sig;
1219 int res;
93910401
JM		 1220
1221 if (tb[NL80211_ATTR_CQM] == NULL ||
1222 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1223 cqm_policy)) {
1224 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1225 return;
1226 }
1227
0d7e5a3a
JB		 1228 os_memset(&ed, 0, sizeof(ed));
1229
1230 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1231 if (!tb[NL80211_ATTR_MAC])
1232 return;
1233 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1234 ETH_ALEN);
1235 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1236 return;
1237 }
1238
93910401
JM		 1239 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1240 return;
1241 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1242
93910401
JM		 1243 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1244 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1245 "event: RSSI high");
b625473c 1246 ed.signal_change.above_threshold = 1;
93910401
JM		 1247 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1248 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1249 "event: RSSI low");
b625473c
JM		 1250 ed.signal_change.above_threshold = 0;
1251 } else
1252 return;
1253
60a972a6
JM		 1254 res = nl80211_get_link_signal(drv, &sig);
1255 if (res == 0) {
7ee35bf3
PS		 1256 ed.signal_change.current_signal = sig.current_signal;
1257 ed.signal_change.current_txrate = sig.current_txrate;
1258 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1259 sig.current_signal, sig.current_txrate);
1260 }
1261
1262 res = nl80211_get_link_noise(drv, &sig);
1263 if (res == 0) {
1264 ed.signal_change.current_noise = sig.current_noise;
1265 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1266 sig.current_noise);
60a972a6
JM		 1267 }
1268
b625473c 1269 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1270}
1271
1272
18d2ba08
JM		 1273static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1274 struct nlattr **tb)
1275{
1276 u8 *addr;
1277 union wpa_event_data data;
1278
1279 if (tb[NL80211_ATTR_MAC] == NULL)
1280 return;
1281 addr = nla_data(tb[NL80211_ATTR_MAC]);
1282 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
1283 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1284 return;
1285
1286 os_memset(&data, 0, sizeof(data));
1287 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1288 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1289}
1290
1291
97865538
JM		 1292static int process_event(struct nl_msg *msg, void *arg)
1293{
1294 struct wpa_driver_nl80211_data *drv = arg;
1295 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1296 struct nlattr *tb[NL80211_ATTR_MAX + 1];
0544b242 1297 union wpa_event_data data;
97865538
JM		 1298
1299 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1300 genlmsg_attrlen(gnlh, 0), NULL);
1301
1302 if (tb[NL80211_ATTR_IFINDEX]) {
1303 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
97cfcf64 1304 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
97865538
JM		 1305 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
1306 " for foreign interface (ifindex %d)",
1307 gnlh->cmd, ifindex);
1308 return NL_SKIP;
1309 }
1310 }
1311
ad1e68e6
JM		 1312 if (drv->ap_scan_as_station &&
1313 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
1314 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6
FF		 1315 wpa_driver_nl80211_set_mode(&drv->first_bss,
1316 IEEE80211_MODE_AP);
ad1e68e6
JM		 1317 drv->ap_scan_as_station = 0;
1318 }
1319
97865538 1320 switch (gnlh->cmd) {
d942a79e
JM		 1321 case NL80211_CMD_TRIGGER_SCAN:
1322 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
1323 break;
97865538
JM		 1324 case NL80211_CMD_NEW_SCAN_RESULTS:
1325 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
1326 drv->scan_complete_events = 1;
1327 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1328 drv->ctx);
8d923a4a 1329 send_scan_event(drv, 0, tb);
97865538
JM		 1330 break;
1331 case NL80211_CMD_SCAN_ABORTED:
1332 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
1333 /*
1334 * Need to indicate that scan results are available in order
1335 * not to make wpa_supplicant stop its scanning.
1336 */
1337 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1338 drv->ctx);
8d923a4a 1339 send_scan_event(drv, 1, tb);
97865538 1340 break;
c2a04078
JM		 1341 case NL80211_CMD_AUTHENTICATE:
1342 case NL80211_CMD_ASSOCIATE:
1343 case NL80211_CMD_DEAUTHENTICATE:
1344 case NL80211_CMD_DISASSOCIATE:
bd94971e
JB		 1345 case NL80211_CMD_FRAME:
1346 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 1347 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1348 case NL80211_CMD_UNPROT_DISASSOCIATE:
da1fb17c 1349 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 1350 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
1351 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
1352 tb[NL80211_ATTR_COOKIE]);
c2a04078 1353 break;
da72a1c1
ZY		 1354 case NL80211_CMD_CONNECT:
1355 case NL80211_CMD_ROAM:
1356 mlme_event_connect(drv, gnlh->cmd,
1357 tb[NL80211_ATTR_STATUS_CODE],
1358 tb[NL80211_ATTR_MAC],
1359 tb[NL80211_ATTR_REQ_IE],
1360 tb[NL80211_ATTR_RESP_IE]);
1361 break;
1362 case NL80211_CMD_DISCONNECT:
7da2c527
JM		 1363 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1364 /*
1365 * Avoid reporting two disassociation events that could
1366 * confuse the core code.
1367 */
1368 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1369 "event when using userspace SME");
1370 break;
1371 }
da72a1c1 1372 drv->associated = 0;
0544b242
JM		 1373 os_memset(&data, 0, sizeof(data));
1374 if (tb[NL80211_ATTR_REASON_CODE])
1375 data.disassoc_info.reason_code =
1376 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
1377 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
da72a1c1 1378 break;
35583f3f
JM		 1379 case NL80211_CMD_MICHAEL_MIC_FAILURE:
1380 mlme_event_michael_mic_failure(drv, tb);
1381 break;
5cc4d64b
JM		 1382 case NL80211_CMD_JOIN_IBSS:
1383 mlme_event_join_ibss(drv, tb);
1384 break;
55777702
JM		 1385 case NL80211_CMD_REMAIN_ON_CHANNEL:
1386 mlme_event_remain_on_channel(drv, 0, tb);
1387 break;
1388 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
1389 mlme_event_remain_on_channel(drv, 1, tb);
1390 break;
93910401
JM		 1391 case NL80211_CMD_NOTIFY_CQM:
1392 nl80211_cqm_event(drv, tb);
1393 break;
33c5deb8
JM		 1394 case NL80211_CMD_REG_CHANGE:
1395 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
1396 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1397 NULL);
1398 break;
1399 case NL80211_CMD_REG_BEACON_HINT:
1400 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
1401 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1402 NULL);
1403 break;
18d2ba08
JM		 1404 case NL80211_CMD_NEW_STATION:
1405 nl80211_new_station_event(drv, tb);
1406 break;
97865538 1407 default:
c2a04078
JM		 1408 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
1409 "(cmd=%d)", gnlh->cmd);
97865538
JM		 1410 break;
1411 }
1412
1413 return NL_SKIP;
1414}
1415
1416
1417static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 1418 void *handle)
97865538
JM		 1419{
1420 struct nl_cb *cb;
1421 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1422
1423 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
1424
1425 cb = nl_cb_clone(drv->nl_cb);
1426 if (!cb)
1427 return;
1428 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
1429 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
5582a5d1 1430 nl_recvmsgs(handle, cb);
97865538
JM		 1431 nl_cb_put(cb);
1432}
1433
1434
6d158490
LR		 1435/**
1436 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1437 * @priv: driver_nl80211 private data
1438 * @alpha2_arg: country to which to switch to
1439 * Returns: 0 on success, -1 on failure
1440 *
1441 * This asks nl80211 to set the regulatory domain for given
1442 * country ISO / IEC alpha2.
1443 */
1444static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1445{
a2e40bb6
FF		 1446 struct i802_bss *bss = priv;
1447 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 1448 char alpha2[3];
1449 struct nl_msg *msg;
1450
1451 msg = nlmsg_alloc();
1452 if (!msg)
e785c2ba 1453 return -ENOMEM;
6d158490
LR		 1454
1455 alpha2[0] = alpha2_arg[0];
1456 alpha2[1] = alpha2_arg[1];
1457 alpha2[2] = '\0';
1458
1459 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1460 0, NL80211_CMD_REQ_SET_REG, 0);
1461
1462 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1463 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1464 return -EINVAL;
1465 return 0;
1466nla_put_failure:
1467 return -EINVAL;
1468}
1469
1470
bbaf0837 1471#ifndef HOSTAPD
80bc75f1
JM		 1472struct wiphy_info_data {
1473 int max_scan_ssids;
1581b38b 1474 int ap_supported;
9f51b113 1475 int p2p_supported;
93d11400
ZY		 1476 int auth_supported;
1477 int connect_supported;
5dfca53f 1478 int offchan_tx_supported;
89e07afb 1479 int max_remain_on_chan;
80bc75f1
JM		 1480};
1481
1482
1483static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1484{
1485 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1486 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1487 struct wiphy_info_data *info = arg;
9f51b113 1488 int p2p_go_supported = 0, p2p_client_supported = 0;
80bc75f1
JM		 1489
1490 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1491 genlmsg_attrlen(gnlh, 0), NULL);
1492
1493 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1494 info->max_scan_ssids =
1495 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1496
1581b38b
JM		 1497 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1498 struct nlattr *nl_mode;
1499 int i;
1500 nla_for_each_nested(nl_mode,
1501 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 1502 switch (nla_type(nl_mode)) {
9f51b113 1503 case NL80211_IFTYPE_AP:
1581b38b
JM		 1504 info->ap_supported = 1;
1505 break;
9f51b113
JB		 1506 case NL80211_IFTYPE_P2P_GO:
1507 p2p_go_supported = 1;
1508 break;
1509 case NL80211_IFTYPE_P2P_CLIENT:
1510 p2p_client_supported = 1;
1511 break;
1581b38b
JM		 1512 }
1513 }
1514 }
1515
9f51b113
JB		 1516 info->p2p_supported = p2p_go_supported && p2p_client_supported;
1517
93d11400
ZY		 1518 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1519 struct nlattr *nl_cmd;
1520 int i;
1521
1522 nla_for_each_nested(nl_cmd,
1523 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1524 u32 cmd = nla_get_u32(nl_cmd);
1525 if (cmd == NL80211_CMD_AUTHENTICATE)
1526 info->auth_supported = 1;
1527 else if (cmd == NL80211_CMD_CONNECT)
1528 info->connect_supported = 1;
1529 }
1530 }
1531
5dfca53f
JB		 1532 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK])
1533 info->offchan_tx_supported = 1;
1534
89e07afb
JB		 1535 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
1536 info->max_remain_on_chan =
1537 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
1538
80bc75f1
JM		 1539 return NL_SKIP;
1540}
1541
1542
1543static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1544 struct wiphy_info_data *info)
1545{
1546 struct nl_msg *msg;
1547
1548 os_memset(info, 0, sizeof(*info));
89e07afb
JB		 1549
1550 /* default to 5000 since early versions of mac80211 don't set it */
1551 info->max_remain_on_chan = 5000;
1552
80bc75f1
JM		 1553 msg = nlmsg_alloc();
1554 if (!msg)
1555 return -1;
1556
1557 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1558 0, NL80211_CMD_GET_WIPHY, 0);
1559
a2e40bb6 1560 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 1561
1562 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1563 return 0;
1564 msg = NULL;
1565nla_put_failure:
1566 nlmsg_free(msg);
1567 return -1;
1568}
1569
1570
93d11400 1571static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1572{
1573 struct wiphy_info_data info;
1574 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1575 return -1;
80bc75f1 1576 drv->has_capability = 1;
1b2a72e8
JM		 1577 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1578 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1579 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1580 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1581 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1582 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1583 WPA_DRIVER_CAPA_ENC_WEP104 |
1584 WPA_DRIVER_CAPA_ENC_TKIP |
1585 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 1586 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1587 WPA_DRIVER_AUTH_SHARED |
1588 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 1589
80bc75f1 1590 drv->capa.max_scan_ssids = info.max_scan_ssids;
1581b38b
JM		 1591 if (info.ap_supported)
1592 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
93d11400
ZY		 1593
1594 if (info.auth_supported)
1595 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1596 else if (!info.connect_supported) {
1597 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1598 "authentication/association or connect commands");
1599 return -1;
1600 }
1601
5dfca53f
JB		 1602 if (info.offchan_tx_supported) {
1603 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
1604 "off-channel TX");
1605 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
1606 }
1607
871f4dd0 1608 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 1609 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
9f51b113
JB		 1610 if (info.p2p_supported)
1611 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
89e07afb 1612 drv->capa.max_remain_on_chan = info.max_remain_on_chan;
0194fedb 1613
93d11400 1614 return 0;
80bc75f1 1615}
bbaf0837 1616#endif /* HOSTAPD */
80bc75f1
JM		 1617
1618
ba2d0d7d 1619static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3f5285e8 1620{
9fff9fdc 1621 int ret;
3f5285e8 1622
9fff9fdc 1623 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1624
1625 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1626 if (drv->nl_cb == NULL) {
1627 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1628 "callbacks");
1629 goto err1;
1630 }
1631
a65a9aed 1632 drv->nl_handle = nl80211_handle_alloc(drv->nl_cb);
3f5285e8
JM		 1633 if (drv->nl_handle == NULL) {
1634 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1635 "callbacks");
1636 goto err2;
1637 }
1638
a65a9aed 1639 drv->nl_handle_event = nl80211_handle_alloc(drv->nl_cb);
335ce76b
JM		 1640 if (drv->nl_handle_event == NULL) {
1641 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1642 "callbacks (event)");
1643 goto err2b;
1644 }
1645
3f5285e8
JM		 1646 if (genl_connect(drv->nl_handle)) {
1647 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1648 "netlink");
1649 goto err3;
1650 }
1651
335ce76b
JM		 1652 if (genl_connect(drv->nl_handle_event)) {
1653 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1654 "netlink (event)");
1655 goto err3;
1656 }
1657
9fff9fdc
JM		 1658#ifdef CONFIG_LIBNL20
1659 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1660 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1661 "netlink cache");
1662 goto err3;
1663 }
335ce76b
JM		 1664 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1665 0) {
1666 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1667 "netlink cache (event)");
1668 goto err3b;
1669 }
9fff9fdc 1670#else /* CONFIG_LIBNL20 */
3f5285e8
JM		 1671 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1672 if (drv->nl_cache == NULL) {
1673 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1674 "netlink cache");
1675 goto err3;
1676 }
335ce76b
JM		 1677 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1678 if (drv->nl_cache_event == NULL) {
1679 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1680 "netlink cache (event)");
1681 goto err3b;
1682 }
9fff9fdc
JM		 1683#endif /* CONFIG_LIBNL20 */
1684
3f5285e8
JM		 1685 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1686 if (drv->nl80211 == NULL) {
1687 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1688 "found");
1689 goto err4;
1690 }
1691
97865538
JM		 1692 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1693 if (ret >= 0)
335ce76b 1694 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 1695 if (ret < 0) {
1696 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1697 "membership for scan events: %d (%s)",
1698 ret, strerror(-ret));
1699 goto err4;
1700 }
c2a04078
JM		 1701
1702 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1703 if (ret >= 0)
335ce76b 1704 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 1705 if (ret < 0) {
1706 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1707 "membership for mlme events: %d (%s)",
1708 ret, strerror(-ret));
1709 goto err4;
1710 }
c2a04078 1711
33c5deb8
JM		 1712 ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
1713 if (ret >= 0)
1714 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1715 if (ret < 0) {
1716 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1717 "membership for regulatory events: %d (%s)",
1718 ret, strerror(-ret));
1719 /* Continue without regulatory events */
1720 }
1721
335ce76b 1722 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
5582a5d1
JB		 1723 wpa_driver_nl80211_event_receive, drv,
1724 drv->nl_handle_event);
97865538 1725
9fff9fdc
JM		 1726 return 0;
1727
1728err4:
335ce76b
JM		 1729 nl_cache_free(drv->nl_cache_event);
1730err3b:
9fff9fdc
JM		 1731 nl_cache_free(drv->nl_cache);
1732err3:
a65a9aed 1733 nl80211_handle_destroy(drv->nl_handle_event);
335ce76b 1734err2b:
a65a9aed 1735 nl80211_handle_destroy(drv->nl_handle);
9fff9fdc
JM		 1736err2:
1737 nl_cb_put(drv->nl_cb);
1738err1:
1739 return -1;
1740}
1741
1742
8401a6b0
JM		 1743static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
1744{
8401a6b0 1745 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 1746 /*
1747 * This may be for any interface; use ifdown event to disable
1748 * interface.
1749 */
8401a6b0
JM		 1750}
1751
1752
1753static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
1754{
1755 struct wpa_driver_nl80211_data *drv = ctx;
1756 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
1757 if (linux_set_iface_flags(drv->ioctl_sock, drv->first_bss.ifname, 1)) {
1758 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
1759 "after rfkill unblock");
1760 return;
1761 }
a63063b4 1762 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 1763}
1764
1765
6859f1cb
BG		 1766static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
1767{
1768 /* Find phy (radio) to which this interface belongs */
1769 char buf[90], *pos;
1770 int f, rv;
1771
1772 drv->phyname[0] = '\0';
1773 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
1774 drv->first_bss.ifname);
1775 f = open(buf, O_RDONLY);
1776 if (f < 0) {
1777 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
1778 buf, strerror(errno));
1779 return;
1780 }
1781
1782 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
1783 close(f);
1784 if (rv < 0) {
1785 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
1786 buf, strerror(errno));
1787 return;
1788 }
1789
1790 drv->phyname[rv] = '\0';
1791 pos = os_strchr(drv->phyname, '\n');
1792 if (pos)
1793 *pos = '\0';
1794 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
1795 drv->first_bss.ifname, drv->phyname);
1796}
1797
1798
9fff9fdc
JM		 1799/**
1800 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1801 * @ctx: context to be used when calling wpa_supplicant functions,
1802 * e.g., wpa_supplicant_event()
1803 * @ifname: interface name, e.g., wlan0
f2ed8023 1804 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 1805 * Returns: Pointer to private data, %NULL on failure
1806 */
f2ed8023
JM		 1807static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
1808 void *global_priv)
9fff9fdc 1809{
9fff9fdc 1810 struct wpa_driver_nl80211_data *drv;
08063178 1811 struct netlink_config *cfg;
8401a6b0 1812 struct rfkill_config *rcfg;
a2e40bb6 1813 struct i802_bss *bss;
9fff9fdc
JM		 1814
1815 drv = os_zalloc(sizeof(*drv));
1816 if (drv == NULL)
1817 return NULL;
f2ed8023 1818 drv->global = global_priv;
9fff9fdc 1819 drv->ctx = ctx;
a2e40bb6
FF		 1820 bss = &drv->first_bss;
1821 bss->drv = drv;
1822 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 1823 drv->monitor_ifidx = -1;
1824 drv->monitor_sock = -1;
bbaf0837 1825 drv->ioctl_sock = -1;
9fff9fdc 1826
ba2d0d7d 1827 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 1828 os_free(drv);
1829 return NULL;
1830 }
9fff9fdc 1831
6859f1cb
BG		 1832 nl80211_get_phy_name(drv);
1833
3f5285e8
JM		 1834 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1835 if (drv->ioctl_sock < 0) {
1836 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 1837 goto failed;
3f5285e8
JM		 1838 }
1839
08063178
JM		 1840 cfg = os_zalloc(sizeof(*cfg));
1841 if (cfg == NULL)
1842 goto failed;
1843 cfg->ctx = drv;
1844 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
1845 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
1846 drv->netlink = netlink_init(cfg);
1847 if (drv->netlink == NULL) {
1848 os_free(cfg);
1849 goto failed;
1850 }
8401a6b0
JM		 1851
1852 rcfg = os_zalloc(sizeof(*rcfg));
1853 if (rcfg == NULL)
1854 goto failed;
1855 rcfg->ctx = drv;
1856 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
1857 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
1858 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
1859 drv->rfkill = rfkill_init(rcfg);
52169389 1860 if (drv->rfkill == NULL) {
8401a6b0 1861 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 1862 os_free(rcfg);
1863 }
8401a6b0 1864
08063178 1865 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 1866 goto failed;
7524cfb1 1867
c4bb8817
JB		 1868 if (drv->global)
1869 dl_list_add(&drv->global->interfaces, &drv->list);
1870
a2e40bb6 1871 return bss;
7524cfb1 1872
bbaf0837 1873failed:
8401a6b0 1874 rfkill_deinit(drv->rfkill);
08063178 1875 netlink_deinit(drv->netlink);
bbaf0837
JM		 1876 if (drv->ioctl_sock >= 0)
1877 close(drv->ioctl_sock);
1878
7524cfb1 1879 genl_family_put(drv->nl80211);
7524cfb1 1880 nl_cache_free(drv->nl_cache);
a65a9aed 1881 nl80211_handle_destroy(drv->nl_handle);
7524cfb1 1882 nl_cb_put(drv->nl_cb);
05ba8690 1883 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
bbaf0837 1884
7524cfb1
JM		 1885 os_free(drv);
1886 return NULL;
1887}
1888
1889
bd94971e 1890static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
5582a5d1 1891 struct nl_handle *nl_handle,
bd94971e 1892 u16 type, const u8 *match, size_t match_len)
58f6fbe0
JM		 1893{
1894 struct nl_msg *msg;
1895 int ret = -1;
1896
1897 msg = nlmsg_alloc();
1898 if (!msg)
1899 return -1;
1900
1901 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1902 NL80211_CMD_REGISTER_ACTION, 0);
1903
1904 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
bd94971e 1905 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 1906 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
1907
5582a5d1 1908 ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 1909 msg = NULL;
1910 if (ret) {
5582a5d1
JB		 1911 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
1912 "failed (type=%u): ret=%d (%s)",
1913 type, ret, strerror(-ret));
1914 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 1915 match, match_len);
1916 goto nla_put_failure;
1917 }
1918 ret = 0;
1919nla_put_failure:
1920 nlmsg_free(msg);
1921 return ret;
1922}
1923
1924
bd94971e
JB		 1925static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
1926 const u8 *match, size_t match_len)
1927{
1928 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
5582a5d1
JB		 1929 return nl80211_register_frame(drv, drv->nl_handle_event,
1930 type, match, match_len);
bd94971e
JB		 1931}
1932
1933
58f6fbe0
JM		 1934static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
1935{
046b26a2
JM		 1936#ifdef CONFIG_P2P
1937 /* GAS Initial Request */
1938 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
1939 return -1;
1940 /* GAS Initial Response */
1941 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
1942 return -1;
18708aad
JM		 1943 /* GAS Comeback Request */
1944 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
1945 return -1;
1946 /* GAS Comeback Response */
1947 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
1948 return -1;
046b26a2
JM		 1949 /* P2P Public Action */
1950 if (nl80211_register_action_frame(drv,
1951 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
1952 6) < 0)
1953 return -1;
1954 /* P2P Action */
1955 if (nl80211_register_action_frame(drv,
1956 (u8 *) "\x7f\x50\x6f\x9a\x09",
1957 5) < 0)
1958 return -1;
1959#endif /* CONFIG_P2P */
7d878ca7
JM		 1960#ifdef CONFIG_IEEE80211W
1961 /* SA Query Response */
1962 if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
1963 return -1;
1964#endif /* CONFIG_IEEE80211W */
046b26a2 1965
7b90c16a
JM		 1966 /* FT Action frames */
1967 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
1968 return -1;
1969 else
1970 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
1971 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
1972
58f6fbe0
JM		 1973 return 0;
1974}
1975
1976
8401a6b0
JM		 1977static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
1978{
1979 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
1980}
1981
1982
362f781e 1983static int
7524cfb1
JM		 1984wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1985{
a2e40bb6 1986 struct i802_bss *bss = &drv->first_bss;
8401a6b0 1987 int send_rfkill_event = 0;
a2e40bb6
FF		 1988
1989 drv->ifindex = if_nametoindex(bss->ifname);
1990 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 1991
bbaf0837 1992#ifndef HOSTAPD
a2e40bb6 1993 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA) < 0) {
a87c9d96
JM		 1994 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1995 "use managed mode");
1996 }
1997
a2e40bb6 1998 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 1999 if (rfkill_is_blocked(drv->rfkill)) {
2000 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2001 "interface '%s' due to rfkill",
2002 bss->ifname);
a63063b4 2003 drv->if_disabled = 1;
8401a6b0
JM		 2004 send_rfkill_event = 1;
2005 } else {
2006 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2007 "interface '%s' UP", bss->ifname);
2008 return -1;
2009 }
362f781e 2010 }
3f5285e8 2011
93d11400
ZY		 2012 if (wpa_driver_nl80211_capa(drv))
2013 return -1;
80bc75f1 2014
08063178 2015 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 2016 1, IF_OPER_DORMANT);
bbaf0837 2017#endif /* HOSTAPD */
362f781e 2018
2136f480
MH		 2019 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr))
2020 return -1;
f2ed8023 2021
7b90c16a
JM		 2022 if (nl80211_register_action_frames(drv) < 0) {
2023 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
2024 "frame processing - ignore for now");
2025 /*
2026 * Older kernel versions did not support this, so ignore the
2027 * error for now. Some functionality may not be available
2028 * because of this.
2029 */
2030 }
58f6fbe0 2031
8401a6b0
JM		 2032 if (send_rfkill_event) {
2033 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2034 drv, drv->ctx);
2035 }
2036
362f781e 2037 return 0;
3f5285e8
JM		 2038}
2039
2040
8a27af5c
JM		 2041static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2042{
2043 struct nl_msg *msg;
2044
2045 msg = nlmsg_alloc();
2046 if (!msg)
2047 return -ENOMEM;
2048
2049 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2050 0, NL80211_CMD_DEL_BEACON, 0);
2051 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2052
2053 return send_and_recv_msgs(drv, msg, NULL, NULL);
2054 nla_put_failure:
2055 return -ENOBUFS;
2056}
8a27af5c
JM		 2057
2058
3f5285e8 2059/**
7e5ba1b9
JM		 2060 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2061 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 2062 *
2063 * Shut down driver interface and processing of driver events. Free
2064 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2065 */
7e5ba1b9 2066static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 2067{
a2e40bb6
FF		 2068 struct i802_bss *bss = priv;
2069 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2070
5582a5d1
JB		 2071 if (drv->nl_handle_preq)
2072 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477
JM		 2073 if (bss->added_if_into_bridge) {
2074 if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
94627f6c
JM		 2075 < 0)
2076 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2077 "interface %s from bridge %s: %s",
e17a2477 2078 bss->ifname, bss->brname, strerror(errno));
94627f6c 2079 }
e17a2477
JM		 2080 if (bss->added_bridge) {
2081 if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 2082 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2083 "bridge %s: %s",
e17a2477 2084 bss->brname, strerror(errno));
94627f6c
JM		 2085 }
2086
460456f8 2087 nl80211_remove_monitor_interface(drv);
8a27af5c
JM		 2088
2089 if (drv->nlmode == NL80211_IFTYPE_AP)
2090 wpa_driver_nl80211_del_beacon(drv);
0915d02c 2091
bbaf0837
JM		 2092#ifdef HOSTAPD
2093 if (drv->last_freq_ht) {
2094 /* Clear HT flags from the driver */
2095 struct hostapd_freq_params freq;
2096 os_memset(&freq, 0, sizeof(freq));
2097 freq.freq = drv->last_freq;
2098 i802_set_freq(priv, &freq);
2099 }
2100
bbaf0837
JM		 2101 if (drv->eapol_sock >= 0) {
2102 eloop_unregister_read_sock(drv->eapol_sock);
2103 close(drv->eapol_sock);
2104 }
2105
2106 if (drv->if_indices != drv->default_if_indices)
2107 os_free(drv->if_indices);
1b648c7e 2108#endif /* HOSTAPD */
3f5285e8 2109
4e5cb1a3
JM		 2110 if (drv->disable_11b_rates)
2111 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2112
08063178
JM		 2113 netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
2114 netlink_deinit(drv->netlink);
8401a6b0 2115 rfkill_deinit(drv->rfkill);
3f5285e8 2116
bbaf0837
JM		 2117 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2118
a2e40bb6
FF		 2119 (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
2120 wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA);
3f5285e8 2121
bbaf0837
JM		 2122 if (drv->ioctl_sock >= 0)
2123 close(drv->ioctl_sock);
3f5285e8 2124
335ce76b 2125 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 2126 genl_family_put(drv->nl80211);
2127 nl_cache_free(drv->nl_cache);
335ce76b 2128 nl_cache_free(drv->nl_cache_event);
a65a9aed
JB		 2129 nl80211_handle_destroy(drv->nl_handle);
2130 nl80211_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 2131 nl_cb_put(drv->nl_cb);
2132
3812464c
JM		 2133 os_free(drv->filter_ssids);
2134
f2ed8023
JM		 2135 if (drv->global)
2136 dl_list_del(&drv->list);
2137
3f5285e8
JM		 2138 os_free(drv);
2139}
2140
2141
2142/**
2143 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 2144 * @eloop_ctx: Driver private data
3f5285e8
JM		 2145 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
2146 *
2147 * This function can be used as registered timeout when starting a scan to
2148 * generate a scan completed event if the driver does not report this.
2149 */
2150static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2151{
ad1e68e6
JM		 2152 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2153 if (drv->ap_scan_as_station) {
a2e40bb6
FF		 2154 wpa_driver_nl80211_set_mode(&drv->first_bss,
2155 IEEE80211_MODE_AP);
ad1e68e6
JM		 2156 drv->ap_scan_as_station = 0;
2157 }
3f5285e8
JM		 2158 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
2159 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
2160}
2161
2162
2163/**
2164 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 2165 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 2166 * @params: Scan parameters
3f5285e8
JM		 2167 * Returns: 0 on success, -1 on failure
2168 */
6a1063e0
JM		 2169static int wpa_driver_nl80211_scan(void *priv,
2170 struct wpa_driver_scan_params *params)
3f5285e8 2171{
a2e40bb6
FF		 2172 struct i802_bss *bss = priv;
2173 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2174 int ret = 0, timeout;
d3a98225 2175 struct nl_msg *msg, *ssids, *freqs;
6a1063e0 2176 size_t i;
3f5285e8 2177
0e75527f
JM		 2178 msg = nlmsg_alloc();
2179 ssids = nlmsg_alloc();
d3a98225
JM		 2180 freqs = nlmsg_alloc();
2181 if (!msg || !ssids || !freqs) {
0e75527f
JM		 2182 nlmsg_free(msg);
2183 nlmsg_free(ssids);
d3a98225 2184 nlmsg_free(freqs);
3f5285e8
JM		 2185 return -1;
2186 }
2187
3812464c
JM		 2188 os_free(drv->filter_ssids);
2189 drv->filter_ssids = params->filter_ssids;
2190 params->filter_ssids = NULL;
2191 drv->num_filter_ssids = params->num_filter_ssids;
2192
0e75527f
JM		 2193 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2194 NL80211_CMD_TRIGGER_SCAN, 0);
2195
2196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2197
6a1063e0 2198 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 2199 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
2200 params->ssids[i].ssid,
2201 params->ssids[i].ssid_len);
6a1063e0
JM		 2202 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2203 params->ssids[i].ssid);
3f5285e8 2204 }
6a1063e0
JM		 2205 if (params->num_ssids)
2206 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 2207
d173df52 2208 if (params->extra_ies) {
9fad706c
JM		 2209 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
2210 params->extra_ies, params->extra_ies_len);
d173df52
JM		 2211 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2212 params->extra_ies);
2213 }
2214
d3a98225 2215 if (params->freqs) {
9fad706c
JM		 2216 for (i = 0; params->freqs[i]; i++) {
2217 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2218 "MHz", params->freqs[i]);
d3a98225 2219 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 2220 }
d3a98225
JM		 2221 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2222 }
2223
0e75527f
JM		 2224 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2225 msg = NULL;
2226 if (ret) {
2227 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
2228 "(%s)", ret, strerror(-ret));
ad1e68e6
JM		 2229#ifdef HOSTAPD
2230 if (drv->nlmode == NL80211_IFTYPE_AP) {
2231 /*
2232 * mac80211 does not allow scan requests in AP mode, so
2233 * try to do this in station mode.
2234 */
a2e40bb6 2235 if (wpa_driver_nl80211_set_mode(bss,
ad1e68e6
JM		 2236 IEEE80211_MODE_INFRA))
2237 goto nla_put_failure;
2238
2239 if (wpa_driver_nl80211_scan(drv, params)) {
a2e40bb6 2240 wpa_driver_nl80211_set_mode(bss,
ad1e68e6
JM		 2241 IEEE80211_MODE_AP);
2242 goto nla_put_failure;
2243 }
2244
2245 /* Restore AP mode when processing scan results */
2246 drv->ap_scan_as_station = 1;
2247 ret = 0;
2248 } else
2249 goto nla_put_failure;
2250#else /* HOSTAPD */
0e75527f 2251 goto nla_put_failure;
ad1e68e6 2252#endif /* HOSTAPD */
3f5285e8
JM		 2253 }
2254
2255 /* Not all drivers generate "scan completed" wireless event, so try to
2256 * read results after a timeout. */
0e75527f 2257 timeout = 10;
3f5285e8
JM		 2258 if (drv->scan_complete_events) {
2259 /*
d173df52
JM		 2260 * The driver seems to deliver events to notify when scan is
2261 * complete, so use longer timeout to avoid race conditions
2262 * with scanning and following association request.
3f5285e8
JM		 2263 */
2264 timeout = 30;
2265 }
2266 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
2267 "seconds", ret, timeout);
2268 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 2269 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
2270 drv, drv->ctx);
3f5285e8 2271
0e75527f
JM		 2272nla_put_failure:
2273 nlmsg_free(ssids);
2274 nlmsg_free(msg);
d3a98225 2275 nlmsg_free(freqs);
3f5285e8
JM		 2276 return ret;
2277}
2278
2279
3812464c
JM		 2280static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
2281{
2282 const u8 *end, *pos;
2283
2284 if (ies == NULL)
2285 return NULL;
2286
2287 pos = ies;
2288 end = ies + ies_len;
2289
2290 while (pos + 1 < end) {
2291 if (pos + 2 + pos[1] > end)
2292 break;
2293 if (pos[0] == ie)
2294 return pos;
2295 pos += 2 + pos[1];
2296 }
2297
2298 return NULL;
2299}
2300
2301
2302static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
2303 const u8 *ie, size_t ie_len)
2304{
2305 const u8 *ssid;
2306 size_t i;
2307
2308 if (drv->filter_ssids == NULL)
2309 return 0;
2310
2311 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
2312 if (ssid == NULL)
2313 return 1;
2314
2315 for (i = 0; i < drv->num_filter_ssids; i++) {
2316 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
2317 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
2318 0)
2319 return 0;
2320 }
2321
2322 return 1;
2323}
2324
2325
2326struct nl80211_bss_info_arg {
2327 struct wpa_driver_nl80211_data *drv;
2328 struct wpa_scan_results *res;
2329};
2330
b3db1e1c 2331static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 2332{
b3db1e1c
JM		 2333 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2334 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2335 struct nlattr *bss[NL80211_BSS_MAX + 1];
2336 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
2337 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
2338 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
2339 [NL80211_BSS_TSF] = { .type = NLA_U64 },
2340 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
2341 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
2342 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
2343 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
2344 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 2345 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 2346 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 2347 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 2348 };
3812464c
JM		 2349 struct nl80211_bss_info_arg *_arg = arg;
2350 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 2351 struct wpa_scan_res **tmp;
2352 struct wpa_scan_res *r;
8c090654
JM		 2353 const u8 *ie, *beacon_ie;
2354 size_t ie_len, beacon_ie_len;
2355 u8 *pos;
3f5285e8 2356
b3db1e1c
JM		 2357 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2358 genlmsg_attrlen(gnlh, 0), NULL);
2359 if (!tb[NL80211_ATTR_BSS])
2360 return NL_SKIP;
2361 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
2362 bss_policy))
2363 return NL_SKIP;
2364 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
2365 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2366 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2367 } else {
2368 ie = NULL;
2369 ie_len = 0;
2370 }
8c090654
JM		 2371 if (bss[NL80211_BSS_BEACON_IES]) {
2372 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
2373 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
2374 } else {
2375 beacon_ie = NULL;
2376 beacon_ie_len = 0;
2377 }
3f5285e8 2378
3812464c
JM		 2379 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
2380 ie ? ie_len : beacon_ie_len))
2381 return NL_SKIP;
2382
8c090654 2383 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 2384 if (r == NULL)
b3db1e1c
JM		 2385 return NL_SKIP;
2386 if (bss[NL80211_BSS_BSSID])
2387 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
2388 ETH_ALEN);
2389 if (bss[NL80211_BSS_FREQUENCY])
2390 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2391 if (bss[NL80211_BSS_BEACON_INTERVAL])
2392 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
2393 if (bss[NL80211_BSS_CAPABILITY])
2394 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 2395 r->flags |= WPA_SCAN_NOISE_INVALID;
2396 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 2397 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 2398 r->level /= 100; /* mBm to dBm */
2399 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
2400 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
2401 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
2402 r->flags |= WPA_SCAN_LEVEL_INVALID;
2403 } else
2404 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 2405 if (bss[NL80211_BSS_TSF])
2406 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 2407 if (bss[NL80211_BSS_SEEN_MS_AGO])
2408 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 2409 r->ie_len = ie_len;
8c090654
JM		 2410 pos = (u8 *) (r + 1);
2411 if (ie) {
2412 os_memcpy(pos, ie, ie_len);
2413 pos += ie_len;
2414 }
2415 r->beacon_ie_len = beacon_ie_len;
2416 if (beacon_ie)
2417 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 2418
e6b8efeb
JM		 2419 if (bss[NL80211_BSS_STATUS]) {
2420 enum nl80211_bss_status status;
2421 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2422 switch (status) {
2423 case NL80211_BSS_STATUS_AUTHENTICATED:
2424 r->flags |= WPA_SCAN_AUTHENTICATED;
2425 break;
2426 case NL80211_BSS_STATUS_ASSOCIATED:
2427 r->flags |= WPA_SCAN_ASSOCIATED;
2428 break;
2429 default:
2430 break;
2431 }
2432 }
2433
3f5285e8
JM		 2434 tmp = os_realloc(res->res,
2435 (res->num + 1) * sizeof(struct wpa_scan_res *));
2436 if (tmp == NULL) {
2437 os_free(r);
b3db1e1c 2438 return NL_SKIP;
3f5285e8
JM		 2439 }
2440 tmp[res->num++] = r;
2441 res->res = tmp;
b3db1e1c
JM		 2442
2443 return NL_SKIP;
3f5285e8 2444}
b3db1e1c 2445
3f5285e8 2446
d72aad94
JM		 2447static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
2448 const u8 *addr)
2449{
2450 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
2451 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 2452 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 2453 wpa_driver_nl80211_mlme(drv, addr,
2454 NL80211_CMD_DEAUTHENTICATE,
77339912 2455 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 2456 }
2457}
2458
2459
e6b8efeb
JM		 2460static void wpa_driver_nl80211_check_bss_status(
2461 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
2462{
2463 size_t i;
2464
2465 for (i = 0; i < res->num; i++) {
2466 struct wpa_scan_res *r = res->res[i];
2467 if (r->flags & WPA_SCAN_AUTHENTICATED) {
2468 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
2469 "indicates BSS status with " MACSTR
2470 " as authenticated",
2471 MAC2STR(r->bssid));
2472 if (drv->nlmode == NL80211_IFTYPE_STATION &&
2473 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
2474 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
2475 0) {
2476 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
2477 " in local state (auth=" MACSTR
2478 " assoc=" MACSTR ")",
2479 MAC2STR(drv->auth_bssid),
2480 MAC2STR(drv->bssid));
582507be 2481 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 2482 }
2483 }
2484
2485 if (r->flags & WPA_SCAN_ASSOCIATED) {
2486 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
2487 "indicate BSS status with " MACSTR
2488 " as associated",
2489 MAC2STR(r->bssid));
2490 if (drv->nlmode == NL80211_IFTYPE_STATION &&
2491 !drv->associated) {
2492 wpa_printf(MSG_DEBUG, "nl80211: Local state "
2493 "(not associated) does not match "
2494 "with BSS state");
d72aad94 2495 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 2496 } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
2497 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
2498 0) {
2499 wpa_printf(MSG_DEBUG, "nl80211: Local state "
2500 "(associated with " MACSTR ") does "
2501 "not match with BSS state",
d72aad94
JM		 2502 MAC2STR(drv->bssid));
2503 clear_state_mismatch(drv, r->bssid);
2504 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 2505 }
2506 }
2507 }
2508}
2509
2510
d1f9c410
JM		 2511static void wpa_scan_results_free(struct wpa_scan_results *res)
2512{
2513 size_t i;
2514
2515 if (res == NULL)
2516 return;
2517
2518 for (i = 0; i < res->num; i++)
2519 os_free(res->res[i]);
2520 os_free(res->res);
2521 os_free(res);
2522}
2523
2524
7e5ba1b9 2525static struct wpa_scan_results *
8856462d 2526nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 2527{
b3db1e1c 2528 struct nl_msg *msg;
3f5285e8 2529 struct wpa_scan_results *res;
b3db1e1c 2530 int ret;
3812464c 2531 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 2532
2533 res = os_zalloc(sizeof(*res));
b3db1e1c 2534 if (res == NULL)
8e2c104f 2535 return NULL;
b3db1e1c
JM		 2536 msg = nlmsg_alloc();
2537 if (!msg)
2538 goto nla_put_failure;
3f5285e8 2539
b3db1e1c
JM		 2540 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
2541 NL80211_CMD_GET_SCAN, 0);
2542 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2543
3812464c
JM		 2544 arg.drv = drv;
2545 arg.res = res;
2546 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 2547 msg = NULL;
2548 if (ret == 0) {
2549 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
2550 (unsigned long) res->num);
2551 return res;
3f5285e8 2552 }
b3db1e1c
JM		 2553 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
2554 "(%s)", ret, strerror(-ret));
2555nla_put_failure:
2556 nlmsg_free(msg);
2557 wpa_scan_results_free(res);
2558 return NULL;
3f5285e8
JM		 2559}
2560
2561
8856462d
JM		 2562/**
2563 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
2564 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
2565 * Returns: Scan results on success, -1 on failure
2566 */
2567static struct wpa_scan_results *
2568wpa_driver_nl80211_get_scan_results(void *priv)
2569{
a2e40bb6
FF		 2570 struct i802_bss *bss = priv;
2571 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 2572 struct wpa_scan_results *res;
2573
2574 res = nl80211_get_scan_results(drv);
2575 if (res)
2576 wpa_driver_nl80211_check_bss_status(drv, res);
2577 return res;
2578}
2579
2580
2581static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
2582{
2583 struct wpa_scan_results *res;
2584 size_t i;
2585
2586 res = nl80211_get_scan_results(drv);
2587 if (res == NULL) {
2588 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
2589 return;
2590 }
2591
2592 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
2593 for (i = 0; i < res->num; i++) {
2594 struct wpa_scan_res *r = res->res[i];
2595 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
2596 (int) i, (int) res->num, MAC2STR(r->bssid),
2597 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
2598 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
2599 }
2600
2601 wpa_scan_results_free(res);
2602}
2603
2604
642187d6 2605static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 2606 enum wpa_alg alg, const u8 *addr,
2607 int key_idx, int set_tx,
642187d6
JM		 2608 const u8 *seq, size_t seq_len,
2609 const u8 *key, size_t key_len)
3f5285e8 2610{
a2e40bb6
FF		 2611 struct i802_bss *bss = priv;
2612 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 2613 int ifindex = if_nametoindex(ifname);
3f5285e8 2614 struct nl_msg *msg;
1ad1cdc2 2615 int ret;
3f5285e8 2616
1ad1cdc2
JM		 2617 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
2618 "set_tx=%d seq_len=%lu key_len=%lu",
2619 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 2620 (unsigned long) seq_len, (unsigned long) key_len);
2621
2622 msg = nlmsg_alloc();
1ad1cdc2
JM		 2623 if (!msg)
2624 return -ENOMEM;
3f5285e8
JM		 2625
2626 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 2627 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2628 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 2629 } else {
1ad1cdc2
JM		 2630 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2631 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8 2632 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 2633 switch (alg) {
2634 case WPA_ALG_WEP:
2635 if (key_len == 5)
2636 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2637 WLAN_CIPHER_SUITE_WEP40);
2638 else
2639 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2640 WLAN_CIPHER_SUITE_WEP104);
2641 break;
2642 case WPA_ALG_TKIP:
2643 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2644 WLAN_CIPHER_SUITE_TKIP);
2645 break;
2646 case WPA_ALG_CCMP:
2647 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2648 WLAN_CIPHER_SUITE_CCMP);
2649 break;
2650 case WPA_ALG_IGTK:
2651 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2652 WLAN_CIPHER_SUITE_AES_CMAC);
2653 break;
2654 default:
2655 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2656 "algorithm %d", __func__, alg);
3f5285e8
JM		 2657 nlmsg_free(msg);
2658 return -1;
2659 }
2660 }
2661
849ef835 2662 if (seq && seq_len)
1ad1cdc2
JM		 2663 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
2664
0382097e 2665 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 2666 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
2667 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 2668
2669 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
2670 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
2671 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
2672 NL80211_KEYTYPE_GROUP);
2673 }
60ea8187
JM		 2674 } else if (addr && is_broadcast_ether_addr(addr)) {
2675 struct nl_msg *types;
2676 int err;
2677 wpa_printf(MSG_DEBUG, " broadcast key");
2678 types = nlmsg_alloc();
2679 if (!types)
2680 goto nla_put_failure;
2681 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
2682 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
2683 types);
2684 nlmsg_free(types);
2685 if (err)
2686 goto nla_put_failure;
3f5285e8
JM		 2687 }
2688 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 2689 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 2690
1ad1cdc2 2691 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 2692 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 2693 ret = 0;
2694 if (ret)
2695 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
2696 ret, strerror(-ret));
3f5285e8 2697
1ad1cdc2
JM		 2698 /*
2699 * If we failed or don't need to set the default TX key (below),
2700 * we're done here.
2701 */
2702 if (ret || !set_tx || alg == WPA_ALG_NONE)
2703 return ret;
0382097e
JM		 2704 if (drv->nlmode == NL80211_IFTYPE_AP && addr &&
2705 !is_broadcast_ether_addr(addr))
de12717a 2706 return ret;
3f5285e8 2707
1ad1cdc2
JM		 2708 msg = nlmsg_alloc();
2709 if (!msg)
2710 return -ENOMEM;
3f5285e8 2711
1ad1cdc2
JM		 2712 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2713 0, NL80211_CMD_SET_KEY, 0);
2714 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2715 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2716 if (alg == WPA_ALG_IGTK)
2717 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
2718 else
2719 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 2720 if (addr && is_broadcast_ether_addr(addr)) {
2721 struct nl_msg *types;
2722 int err;
2723 types = nlmsg_alloc();
2724 if (!types)
2725 goto nla_put_failure;
2726 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
2727 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
2728 types);
2729 nlmsg_free(types);
2730 if (err)
2731 goto nla_put_failure;
2732 } else if (addr) {
2733 struct nl_msg *types;
2734 int err;
2735 types = nlmsg_alloc();
2736 if (!types)
2737 goto nla_put_failure;
2738 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
2739 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
2740 types);
2741 nlmsg_free(types);
2742 if (err)
2743 goto nla_put_failure;
2744 }
3f5285e8 2745
1ad1cdc2
JM		 2746 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2747 if (ret == -ENOENT)
2748 ret = 0;
2749 if (ret)
2750 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
2751 "err=%d %s)", ret, strerror(-ret));
2752 return ret;
3f5285e8
JM		 2753
2754nla_put_failure:
6241fcb1 2755 return -ENOBUFS;
3f5285e8
JM		 2756}
2757
2758
71934751 2759static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 2760 int key_idx, int defkey,
2761 const u8 *seq, size_t seq_len,
2762 const u8 *key, size_t key_len)
2763{
2764 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
2765 if (!key_attr)
2766 return -1;
2767
2768 if (defkey && alg == WPA_ALG_IGTK)
2769 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
2770 else if (defkey)
2771 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2772
2773 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
2774
d723bab4
JM		 2775 switch (alg) {
2776 case WPA_ALG_WEP:
2777 if (key_len == 5)
2aa5f847
JM		 2778 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2779 WLAN_CIPHER_SUITE_WEP40);
d723bab4 2780 else
2aa5f847
JM		 2781 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2782 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 2783 break;
2784 case WPA_ALG_TKIP:
2aa5f847 2785 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 2786 break;
2787 case WPA_ALG_CCMP:
2aa5f847 2788 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 2789 break;
2790 case WPA_ALG_IGTK:
2aa5f847
JM		 2791 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2792 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 2793 break;
2794 default:
2795 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2796 "algorithm %d", __func__, alg);
0194fedb 2797 return -1;
d723bab4 2798 }
0194fedb
JB		 2799
2800 if (seq && seq_len)
2801 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
2802
2803 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
2804
2805 nla_nest_end(msg, key_attr);
2806
2807 return 0;
2808 nla_put_failure:
2809 return -1;
2810}
2811
c811d5bc 2812
cfaab580
ZY		 2813static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
2814 struct nl_msg *msg)
2815{
2816 int i, privacy = 0;
2817 struct nlattr *nl_keys, *nl_key;
2818
2819 for (i = 0; i < 4; i++) {
2820 if (!params->wep_key[i])
2821 continue;
2822 privacy = 1;
2823 break;
2824 }
ce04af5a
JM		 2825 if (params->wps == WPS_MODE_PRIVACY)
2826 privacy = 1;
2827 if (params->pairwise_suite &&
2828 params->pairwise_suite != WPA_CIPHER_NONE)
2829 privacy = 1;
2830
cfaab580
ZY		 2831 if (!privacy)
2832 return 0;
2833
2834 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
2835
2836 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
2837 if (!nl_keys)
2838 goto nla_put_failure;
2839
2840 for (i = 0; i < 4; i++) {
2841 if (!params->wep_key[i])
2842 continue;
2843
2844 nl_key = nla_nest_start(msg, i);
2845 if (!nl_key)
2846 goto nla_put_failure;
2847
2848 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
2849 params->wep_key[i]);
2850 if (params->wep_key_len[i] == 5)
2851 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2852 WLAN_CIPHER_SUITE_WEP40);
2853 else
2854 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2855 WLAN_CIPHER_SUITE_WEP104);
2856
2857 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
2858
2859 if (i == params->wep_tx_keyidx)
2860 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2861
2862 nla_nest_end(msg, nl_key);
2863 }
2864 nla_nest_end(msg, nl_keys);
2865
2866 return 0;
2867
2868nla_put_failure:
2869 return -ENOBUFS;
2870}
2871
2872
c2a04078 2873static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 2874 const u8 *addr, int cmd, u16 reason_code,
2875 int local_state_change)
c2a04078
JM		 2876{
2877 int ret = -1;
2878 struct nl_msg *msg;
2879
2880 msg = nlmsg_alloc();
2881 if (!msg)
2882 return -1;
2883
2884 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2885
2886 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2887 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2888 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 2889 if (local_state_change)
2890 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 2891
2892 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2893 msg = NULL;
2894 if (ret) {
2895 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2896 "(%s)", ret, strerror(-ret));
2897 goto nla_put_failure;
2898 }
2899 ret = 0;
2900
2901nla_put_failure:
2902 nlmsg_free(msg);
2903 return ret;
2904}
3f5285e8
JM		 2905
2906
cfaab580
ZY		 2907static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2908 const u8 *addr, int reason_code)
2909{
2e75a2b3
JM		 2910 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
2911 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 2912 drv->associated = 0;
2913 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 2914 reason_code, 0);
cfaab580
ZY		 2915}
2916
2917
3f5285e8 2918static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 2919 int reason_code)
3f5285e8 2920{
a2e40bb6
FF		 2921 struct i802_bss *bss = priv;
2922 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 2923 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2924 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 2925 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
2926 __func__, MAC2STR(addr), reason_code);
13405f35 2927 drv->associated = 0;
c2a04078 2928 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 2929 reason_code, 0);
3f5285e8
JM		 2930}
2931
2932
2933static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 2934 int reason_code)
3f5285e8 2935{
a2e40bb6
FF		 2936 struct i802_bss *bss = priv;
2937 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 2938 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2939 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2940 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2941 drv->associated = 0;
c2a04078 2942 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 2943 reason_code, 0);
3f5285e8
JM		 2944}
2945
2946
c2a04078
JM		 2947static int wpa_driver_nl80211_authenticate(
2948 void *priv, struct wpa_driver_auth_params *params)
2949{
a2e40bb6
FF		 2950 struct i802_bss *bss = priv;
2951 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 2952 int ret = -1, i;
c2a04078
JM		 2953 struct nl_msg *msg;
2954 enum nl80211_auth_type type;
6d6f4bb8 2955 int count = 0;
c2a04078
JM		 2956
2957 drv->associated = 0;
e6b8efeb 2958 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 2959 /* FIX: IBSS mode */
f14f5141
EP		 2960 if (drv->nlmode != NL80211_IFTYPE_STATION &&
2961 wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA) < 0)
4a867032
JM		 2962 return -1;
2963
6d6f4bb8 2964retry:
c2a04078
JM		 2965 msg = nlmsg_alloc();
2966 if (!msg)
2967 return -1;
2968
2969 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2970 drv->ifindex);
a0b2f99b 2971
0194fedb
JB		 2972 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2973 NL80211_CMD_AUTHENTICATE, 0);
2974
a0b2f99b
JM		 2975 for (i = 0; i < 4; i++) {
2976 if (!params->wep_key[i])
2977 continue;
2ea2fcc7
HS		 2978 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
2979 NULL, i,
a0b2f99b
JM		 2980 i == params->wep_tx_keyidx, NULL, 0,
2981 params->wep_key[i],
2982 params->wep_key_len[i]);
0194fedb
JB		 2983 if (params->wep_tx_keyidx != i)
2984 continue;
2985 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2986 params->wep_key[i], params->wep_key_len[i])) {
2987 nlmsg_free(msg);
2988 return -1;
2989 }
a0b2f99b
JM		 2990 }
2991
c2a04078
JM		 2992 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2993 if (params->bssid) {
2994 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2995 MAC2STR(params->bssid));
2996 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2997 }
2998 if (params->freq) {
2999 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3000 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3001 }
3002 if (params->ssid) {
3003 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3004 params->ssid, params->ssid_len);
3005 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3006 params->ssid);
3007 }
3008 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3009 if (params->ie)
3010 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 3011 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 3012 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 3013 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 3014 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 3015 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 3016 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 3017 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 3018 type = NL80211_AUTHTYPE_FT;
3019 else
3020 goto nla_put_failure;
3021 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3022 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 3023 if (params->local_state_change) {
3024 wpa_printf(MSG_DEBUG, " * Local state change only");
3025 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
3026 }
c2a04078
JM		 3027
3028 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3029 msg = NULL;
3030 if (ret) {
3031 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3032 "(%s)", ret, strerror(-ret));
6d6f4bb8 3033 count++;
77339912
JM		 3034 if (ret == -EALREADY && count == 1 && params->bssid &&
3035 !params->local_state_change) {
6d6f4bb8
JM		 3036 /*
3037 * mac80211 does not currently accept new
3038 * authentication if we are already authenticated. As a
3039 * workaround, force deauthentication and try again.
3040 */
3041 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3042 "after forced deauthentication");
3043 wpa_driver_nl80211_deauthenticate(
5205c4f9 3044 bss, params->bssid,
6d6f4bb8
JM		 3045 WLAN_REASON_PREV_AUTH_NOT_VALID);
3046 nlmsg_free(msg);
3047 goto retry;
3048 }
c2a04078
JM		 3049 goto nla_put_failure;
3050 }
3051 ret = 0;
3052 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
3053 "successfully");
3054
3055nla_put_failure:
3056 nlmsg_free(msg);
3057 return ret;
3058}
3059
3060
282d5590
JM		 3061struct phy_info_arg {
3062 u16 *num_modes;
3063 struct hostapd_hw_modes *modes;
3064};
3065
3066static int phy_info_handler(struct nl_msg *msg, void *arg)
3067{
3068 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3069 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3070 struct phy_info_arg *phy_info = arg;
3071
3072 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
3073
3074 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
3075 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3076 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
3077 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
3078 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
3079 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
3080 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
3081 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
3082 };
3083
3084 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
3085 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
3086 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3087 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
3088 };
3089
3090 struct nlattr *nl_band;
3091 struct nlattr *nl_freq;
3092 struct nlattr *nl_rate;
3093 int rem_band, rem_freq, rem_rate;
3094 struct hostapd_hw_modes *mode;
3095 int idx, mode_is_set;
3096
3097 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3098 genlmsg_attrlen(gnlh, 0), NULL);
3099
3100 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
3101 return NL_SKIP;
3102
3103 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 3104 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 3105 if (!mode)
3106 return NL_SKIP;
3107 phy_info->modes = mode;
3108
3109 mode_is_set = 0;
3110
3111 mode = &phy_info->modes[*(phy_info->num_modes)];
3112 memset(mode, 0, sizeof(*mode));
3113 *(phy_info->num_modes) += 1;
3114
3115 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
3116 nla_len(nl_band), NULL);
3117
3118 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
3119 mode->ht_capab = nla_get_u16(
3120 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
3121 }
3122
be8eb8ab
JM		 3123 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
3124 mode->a_mpdu_params |= nla_get_u8(
3125 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
3126 0x03;
3127 }
3128
3129 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
3130 mode->a_mpdu_params |= nla_get_u8(
3131 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
3132 2;
3133 }
3134
08eb154d
JM		 3135 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
3136 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
3137 u8 *mcs;
3138 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
3139 os_memcpy(mode->mcs_set, mcs, 16);
3140 }
3141
282d5590
JM		 3142 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3143 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3144 nla_len(nl_freq), freq_policy);
3145 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3146 continue;
3147 mode->num_channels++;
3148 }
3149
e62fb0a0 3150 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 3151 if (!mode->channels)
3152 return NL_SKIP;
3153
3154 idx = 0;
3155
3156 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3157 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3158 nla_len(nl_freq), freq_policy);
3159 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3160 continue;
3161
3162 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
3163 mode->channels[idx].flag = 0;
3164
3165 if (!mode_is_set) {
3166 /* crude heuristic */
3167 if (mode->channels[idx].freq < 4000)
3168 mode->mode = HOSTAPD_MODE_IEEE80211B;
3169 else
3170 mode->mode = HOSTAPD_MODE_IEEE80211A;
3171 mode_is_set = 1;
3172 }
3173
3174 /* crude heuristic */
3175 if (mode->channels[idx].freq < 4000)
5a0ffb5f 3176 if (mode->channels[idx].freq == 2484)
282d5590
JM		 3177 mode->channels[idx].chan = 14;
3178 else
3179 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
3180 else
3181 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
3182
3183 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3184 mode->channels[idx].flag |=
3185 HOSTAPD_CHAN_DISABLED;
3186 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
3187 mode->channels[idx].flag |=
3188 HOSTAPD_CHAN_PASSIVE_SCAN;
3189 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
3190 mode->channels[idx].flag |=
3191 HOSTAPD_CHAN_NO_IBSS;
3192 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
3193 mode->channels[idx].flag |=
3194 HOSTAPD_CHAN_RADAR;
3195
3196 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
3197 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3198 mode->channels[idx].max_tx_power =
3199 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
3200
3201 idx++;
3202 }
3203
3204 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3205 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3206 nla_len(nl_rate), rate_policy);
3207 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3208 continue;
3209 mode->num_rates++;
3210 }
3211
e62fb0a0 3212 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 3213 if (!mode->rates)
3214 return NL_SKIP;
3215
3216 idx = 0;
3217
3218 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3219 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3220 nla_len(nl_rate), rate_policy);
3221 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3222 continue;
fb7842aa 3223 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 3224
3225 /* crude heuristic */
3226 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 3227 mode->rates[idx] > 200)
282d5590
JM		 3228 mode->mode = HOSTAPD_MODE_IEEE80211G;
3229
282d5590
JM		 3230 idx++;
3231 }
3232 }
3233
3234 return NL_SKIP;
3235}
3236
3237static struct hostapd_hw_modes *
3238wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
3239{
3240 u16 m;
3241 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
3242 int i, mode11g_idx = -1;
3243
3244 /* If only 802.11g mode is included, use it to construct matching
3245 * 802.11b mode data. */
3246
3247 for (m = 0; m < *num_modes; m++) {
3248 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
3249 return modes; /* 802.11b already included */
3250 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
3251 mode11g_idx = m;
3252 }
3253
3254 if (mode11g_idx < 0)
3255 return modes; /* 2.4 GHz band not supported at all */
3256
3257 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
3258 if (nmodes == NULL)
3259 return modes; /* Could not add 802.11b mode */
3260
3261 mode = &nmodes[*num_modes];
3262 os_memset(mode, 0, sizeof(*mode));
3263 (*num_modes)++;
3264 modes = nmodes;
3265
3266 mode->mode = HOSTAPD_MODE_IEEE80211B;
3267
3268 mode11g = &modes[mode11g_idx];
3269 mode->num_channels = mode11g->num_channels;
3270 mode->channels = os_malloc(mode11g->num_channels *
3271 sizeof(struct hostapd_channel_data));
3272 if (mode->channels == NULL) {
3273 (*num_modes)--;
3274 return modes; /* Could not add 802.11b mode */
3275 }
3276 os_memcpy(mode->channels, mode11g->channels,
3277 mode11g->num_channels * sizeof(struct hostapd_channel_data));
3278
3279 mode->num_rates = 0;
fb7842aa 3280 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 3281 if (mode->rates == NULL) {
3282 os_free(mode->channels);
3283 (*num_modes)--;
3284 return modes; /* Could not add 802.11b mode */
3285 }
3286
3287 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 3288 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
3289 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 3290 continue;
3291 mode->rates[mode->num_rates] = mode11g->rates[i];
3292 mode->num_rates++;
3293 if (mode->num_rates == 4)
3294 break;
3295 }
3296
3297 if (mode->num_rates == 0) {
3298 os_free(mode->channels);
3299 os_free(mode->rates);
3300 (*num_modes)--;
3301 return modes; /* No 802.11b rates */
3302 }
3303
3304 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
3305 "information");
3306
3307 return modes;
3308}
3309
3310
d8e66e80
JM		 3311static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
3312 int end)
3313{
3314 int c;
3315
3316 for (c = 0; c < mode->num_channels; c++) {
3317 struct hostapd_channel_data *chan = &mode->channels[c];
3318 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
3319 chan->flag |= HOSTAPD_CHAN_HT40;
3320 }
3321}
3322
3323
3324static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
3325 int end)
3326{
3327 int c;
3328
3329 for (c = 0; c < mode->num_channels; c++) {
3330 struct hostapd_channel_data *chan = &mode->channels[c];
3331 if (!(chan->flag & HOSTAPD_CHAN_HT40))
3332 continue;
3333 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
3334 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
3335 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
3336 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
3337 }
3338}
3339
3340
3341static void nl80211_reg_rule_ht40(struct nlattr *tb[],
3342 struct phy_info_arg *results)
3343{
3344 u32 start, end, max_bw;
3345 u16 m;
3346
3347 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3348 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3349 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3350 return;
3351
3352 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3353 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3354 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3355
3356 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
3357 start, end, max_bw);
3358 if (max_bw < 40)
3359 return;
3360
3361 for (m = 0; m < *results->num_modes; m++) {
3362 if (!(results->modes[m].ht_capab &
3363 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3364 continue;
3365 nl80211_set_ht40_mode(&results->modes[m], start, end);
3366 }
3367}
3368
3369
3370static void nl80211_reg_rule_sec(struct nlattr *tb[],
3371 struct phy_info_arg *results)
3372{
3373 u32 start, end, max_bw;
3374 u16 m;
3375
3376 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3377 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3378 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3379 return;
3380
3381 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3382 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3383 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3384
3385 if (max_bw < 20)
3386 return;
3387
3388 for (m = 0; m < *results->num_modes; m++) {
3389 if (!(results->modes[m].ht_capab &
3390 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3391 continue;
3392 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
3393 }
3394}
3395
3396
3397static int nl80211_get_reg(struct nl_msg *msg, void *arg)
3398{
3399 struct phy_info_arg *results = arg;
3400 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3401 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3402 struct nlattr *nl_rule;
3403 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
3404 int rem_rule;
3405 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3406 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3407 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3408 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3409 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3410 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3411 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3412 };
3413
3414 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3415 genlmsg_attrlen(gnlh, 0), NULL);
3416 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
3417 !tb_msg[NL80211_ATTR_REG_RULES]) {
3418 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
3419 "available");
3420 return NL_SKIP;
3421 }
3422
3423 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
3424 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
3425
3426 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3427 {
3428 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3429 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3430 nl80211_reg_rule_ht40(tb_rule, results);
3431 }
3432
3433 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3434 {
3435 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3436 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3437 nl80211_reg_rule_sec(tb_rule, results);
3438 }
3439
3440 return NL_SKIP;
3441}
3442
3443
3444static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
3445 struct phy_info_arg *results)
3446{
3447 struct nl_msg *msg;
3448
3449 msg = nlmsg_alloc();
3450 if (!msg)
3451 return -ENOMEM;
3452
3453 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3454 0, NL80211_CMD_GET_REG, 0);
3455 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
3456}
3457
3458
282d5590
JM		 3459static struct hostapd_hw_modes *
3460wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
3461{
a2e40bb6
FF		 3462 struct i802_bss *bss = priv;
3463 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 3464 struct nl_msg *msg;
3465 struct phy_info_arg result = {
3466 .num_modes = num_modes,
3467 .modes = NULL,
3468 };
3469
3470 *num_modes = 0;
3471 *flags = 0;
3472
3473 msg = nlmsg_alloc();
3474 if (!msg)
3475 return NULL;
3476
3477 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3478 0, NL80211_CMD_GET_WIPHY, 0);
3479
3480 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3481
d8e66e80
JM		 3482 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
3483 nl80211_set_ht40_flags(drv, &result);
282d5590 3484 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 3485 }
282d5590
JM		 3486 nla_put_failure:
3487 return NULL;
3488}
3489
3490
2c2010ac
JM		 3491static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
3492 const void *data, size_t len,
3493 int encrypt)
3494{
3495 __u8 rtap_hdr[] = {
3496 0x00, 0x00, /* radiotap version */
3497 0x0e, 0x00, /* radiotap length */
3498 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
3499 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
3500 0x00, /* padding */
3501 0x00, 0x00, /* RX and TX flags to indicate that */
3502 0x00, 0x00, /* this is the injected frame directly */
3503 };
3504 struct iovec iov[2] = {
3505 {
3506 .iov_base = &rtap_hdr,
3507 .iov_len = sizeof(rtap_hdr),
3508 },
3509 {
3510 .iov_base = (void *) data,
3511 .iov_len = len,
3512 }
3513 };
3514 struct msghdr msg = {
3515 .msg_name = NULL,
3516 .msg_namelen = 0,
3517 .msg_iov = iov,
3518 .msg_iovlen = 2,
3519 .msg_control = NULL,
3520 .msg_controllen = 0,
3521 .msg_flags = 0,
3522 };
ebbec8b2 3523 int res;
2c2010ac
JM		 3524
3525 if (encrypt)
3526 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
3527
ebbec8b2
JM		 3528 res = sendmsg(drv->monitor_sock, &msg, 0);
3529 if (res < 0) {
3530 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
3531 return -1;
3532 }
3533 return 0;
2c2010ac
JM		 3534}
3535
3536
3537static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
3538 size_t data_len)
3539{
a2e40bb6
FF		 3540 struct i802_bss *bss = priv;
3541 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 3542 struct ieee80211_mgmt *mgmt;
7a47d567 3543 int encrypt = 1;
2c2010ac
JM		 3544 u16 fc;
3545
3546 mgmt = (struct ieee80211_mgmt *) data;
3547 fc = le_to_host16(mgmt->frame_control);
3548
5582a5d1
JB		 3549 if (drv->nlmode == NL80211_IFTYPE_STATION &&
3550 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3551 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
3552 /*
3553 * The use of last_mgmt_freq is a bit of a hack,
3554 * but it works due to the single-threaded nature
3555 * of wpa_supplicant.
3556 */
5dfca53f 3557 return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0,
5582a5d1
JB		 3558 data, data_len, NULL);
3559 }
3560
2c2010ac
JM		 3561 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3562 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
3563 /*
3564 * Only one of the authentication frame types is encrypted.
3565 * In order for static WEP encryption to work properly (i.e.,
3566 * to not encrypt the frame), we need to tell mac80211 about
3567 * the frames that must not be encrypted.
3568 */
3569 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
3570 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 3571 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
3572 encrypt = 0;
2c2010ac
JM		 3573 }
3574
7a47d567 3575 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 3576}
3577
3578
8b897f5a 3579static int wpa_driver_nl80211_set_beacon(void *priv,
5d674872
JM		 3580 const u8 *head, size_t head_len,
3581 const u8 *tail, size_t tail_len,
3582 int dtim_period, int beacon_int)
d2440ba0 3583{
a2e40bb6
FF		 3584 struct i802_bss *bss = priv;
3585 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 3586 struct nl_msg *msg;
3587 u8 cmd = NL80211_CMD_NEW_BEACON;
3588 int ret;
b4fd6fab 3589 int beacon_set;
8b897f5a 3590 int ifindex = if_nametoindex(bss->ifname);
b4fd6fab 3591
b4fd6fab 3592 beacon_set = bss->beacon_set;
d2440ba0
JM		 3593
3594 msg = nlmsg_alloc();
3595 if (!msg)
3596 return -ENOMEM;
3597
3598 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 3599 beacon_set);
3600 if (beacon_set)
d2440ba0
JM		 3601 cmd = NL80211_CMD_SET_BEACON;
3602
3603 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3604 0, cmd, 0);
3605 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
3606 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
b4fd6fab 3607 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5d674872 3608 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
d2440ba0
JM		 3609 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
3610
3611 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3612 if (ret) {
3613 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
3614 ret, strerror(-ret));
b4fd6fab 3615 } else {
b4fd6fab 3616 bss->beacon_set = 1;
b4fd6fab 3617 }
d2440ba0
JM		 3618 return ret;
3619 nla_put_failure:
3620 return -ENOBUFS;
3621}
3622
3623
f019981a
JM		 3624static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
3625 int freq, int ht_enabled,
3626 int sec_channel_offset)
1581b38b
JM		 3627{
3628 struct nl_msg *msg;
d2440ba0 3629 int ret;
1581b38b
JM		 3630
3631 msg = nlmsg_alloc();
3632 if (!msg)
3633 return -1;
3634
3635 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3636 NL80211_CMD_SET_WIPHY, 0);
3637
3638 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 3639 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
3640 if (ht_enabled) {
3641 switch (sec_channel_offset) {
3642 case -1:
3643 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3644 NL80211_CHAN_HT40MINUS);
3645 break;
3646 case 1:
3647 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3648 NL80211_CHAN_HT40PLUS);
3649 break;
3650 default:
3651 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3652 NL80211_CHAN_HT20);
3653 break;
3654 }
3655 }
1581b38b 3656
d2440ba0
JM		 3657 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3658 if (ret == 0)
1581b38b 3659 return 0;
f019981a
JM		 3660 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
3661 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 3662nla_put_failure:
3663 return -1;
3664}
3665
0f4e8b4f 3666
62847751 3667static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 3668 struct hostapd_sta_add_params *params)
3669{
a2e40bb6
FF		 3670 struct i802_bss *bss = priv;
3671 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 3672 struct nl_msg *msg;
3673 int ret = -ENOBUFS;
3674
3675 msg = nlmsg_alloc();
3676 if (!msg)
3677 return -ENOMEM;
3678
3679 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3680 0, NL80211_CMD_NEW_STATION, 0);
3681
62847751 3682 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f
JM		 3683 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
3684 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
3685 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
3686 params->supp_rates);
3687 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
3688 params->listen_interval);
0f4e8b4f
JM		 3689 if (params->ht_capabilities) {
3690 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 3691 sizeof(*params->ht_capabilities),
3692 params->ht_capabilities);
0f4e8b4f 3693 }
0f4e8b4f
JM		 3694
3695 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3696 if (ret)
3697 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
3698 "result: %d (%s)", ret, strerror(-ret));
3699 if (ret == -EEXIST)
3700 ret = 0;
3701 nla_put_failure:
3702 return ret;
3703}
3704
3705
3706static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
3707{
a2e40bb6
FF		 3708 struct i802_bss *bss = priv;
3709 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 3710 struct nl_msg *msg;
3711 int ret;
3712
3713 msg = nlmsg_alloc();
3714 if (!msg)
3715 return -ENOMEM;
3716
3717 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3718 0, NL80211_CMD_DEL_STATION, 0);
3719
3720 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 3721 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 3722 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3723
3724 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3725 if (ret == -ENOENT)
3726 return 0;
3727 return ret;
3728 nla_put_failure:
3729 return -ENOBUFS;
3730}
3731
1581b38b 3732
0915d02c
JM		 3733static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
3734 int ifidx)
3735{
3736 struct nl_msg *msg;
3737
c6e8e8e4
JM		 3738 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
3739
2135f224
JM		 3740#ifdef HOSTAPD
3741 /* stop listening for EAPOL on this interface */
3742 del_ifidx(drv, ifidx);
3743#endif /* HOSTAPD */
3744
0915d02c
JM		 3745 msg = nlmsg_alloc();
3746 if (!msg)
3747 goto nla_put_failure;
3748
3749 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3750 0, NL80211_CMD_DEL_INTERFACE, 0);
3751 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
3752
3753 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
3754 return;
3755 nla_put_failure:
e748062b 3756 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 3757}
3758
3759
a35187e7
KH		 3760static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
3761 const char *ifname,
3762 enum nl80211_iftype iftype,
fbbfcbac 3763 const u8 *addr, int wds)
0915d02c
JM		 3764{
3765 struct nl_msg *msg, *flags = NULL;
3766 int ifidx;
3767 int ret = -ENOBUFS;
3768
3769 msg = nlmsg_alloc();
3770 if (!msg)
3771 return -1;
3772
3773 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3774 0, NL80211_CMD_NEW_INTERFACE, 0);
3775 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3776 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
3777 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
3778
3779 if (iftype == NL80211_IFTYPE_MONITOR) {
3780 int err;
3781
3782 flags = nlmsg_alloc();
3783 if (!flags)
3784 goto nla_put_failure;
3785
3786 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
3787
3788 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
3789
3790 nlmsg_free(flags);
3791
3792 if (err)
3793 goto nla_put_failure;
fbbfcbac
FF		 3794 } else if (wds) {
3795 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 3796 }
3797
3798 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3799 if (ret) {
3800 nla_put_failure:
a35187e7
KH		 3801 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
3802 ifname, ret, strerror(-ret));
0915d02c
JM		 3803 return ret;
3804 }
3805
3806 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 3807 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
3808 ifname, ifidx);
0915d02c
JM		 3809
3810 if (ifidx <= 0)
3811 return -1;
3812
2135f224
JM		 3813#ifdef HOSTAPD
3814 /* start listening for EAPOL on this interface */
3815 add_ifidx(drv, ifidx);
7bfc47c3 3816#endif /* HOSTAPD */
2135f224 3817
7bfc47c3 3818 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
2ac9688e 3819 linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
41d931ee
JM		 3820 nl80211_remove_iface(drv, ifidx);
3821 return -1;
2135f224 3822 }
2135f224 3823
0915d02c
JM		 3824 return ifidx;
3825}
22a7c9d7
JM		 3826
3827
a35187e7
KH		 3828static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
3829 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 3830 const u8 *addr, int wds)
a35187e7
KH		 3831{
3832 int ret;
3833
fbbfcbac 3834 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7
KH		 3835
3836 /* if error occured and interface exists already */
3837 if (ret == -ENFILE && if_nametoindex(ifname)) {
3838 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
3839
3840 /* Try to remove the interface that was already there. */
3841 nl80211_remove_iface(drv, if_nametoindex(ifname));
3842
3843 /* Try to create the interface again */
fbbfcbac
FF		 3844 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
3845 wds);
a35187e7
KH		 3846 }
3847
4e5cb1a3
JM		 3848 if (ret >= 0 && drv->disable_11b_rates)
3849 nl80211_disable_11b_rates(drv, ret, 1);
3850
a35187e7
KH		 3851 return ret;
3852}
0915d02c 3853
2135f224 3854
0915d02c
JM		 3855static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
3856{
3857 struct ieee80211_hdr *hdr;
f8b1f695
JM		 3858 u16 fc;
3859 union wpa_event_data event;
0915d02c
JM		 3860
3861 hdr = (struct ieee80211_hdr *) buf;
3862 fc = le_to_host16(hdr->frame_control);
3863
f8b1f695
JM		 3864 os_memset(&event, 0, sizeof(event));
3865 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
3866 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
3867 event.tx_status.dst = hdr->addr1;
3868 event.tx_status.data = buf;
3869 event.tx_status.data_len = len;
3870 event.tx_status.ack = ok;
3871 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 3872}
3873
3874
4b9841d3 3875static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 3876 u8 *buf, size_t len)
0915d02c 3877{
f8b1f695
JM		 3878 union wpa_event_data event;
3879 os_memset(&event, 0, sizeof(event));
0d9fc3d8 3880 event.rx_from_unknown.frame = buf;
f8b1f695
JM		 3881 event.rx_from_unknown.len = len;
3882 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 3883}
0915d02c 3884
4b9841d3
JM		 3885
3886static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 3887 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 3888{
3889 struct ieee80211_hdr *hdr;
f8b1f695
JM		 3890 u16 fc;
3891 union wpa_event_data event;
0915d02c
JM		 3892
3893 hdr = (struct ieee80211_hdr *) buf;
3894 fc = le_to_host16(hdr->frame_control);
0915d02c 3895
4b9841d3 3896 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 3897 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 3898 os_memset(&event, 0, sizeof(event));
3899 event.rx_mgmt.frame = buf;
3900 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 3901 event.rx_mgmt.datarate = datarate;
3902 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 3903 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 3904 break;
3905 case WLAN_FC_TYPE_CTRL:
3906 /* can only get here with PS-Poll frames */
3907 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 3908 from_unknown_sta(drv, buf, len);
0915d02c
JM		 3909 break;
3910 case WLAN_FC_TYPE_DATA:
0d9fc3d8 3911 from_unknown_sta(drv, buf, len);
0915d02c
JM		 3912 break;
3913 }
3914}
3915
3916
3917static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
3918{
3919 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3920 int len;
3921 unsigned char buf[3000];
3922 struct ieee80211_radiotap_iterator iter;
3923 int ret;
2a8b7416 3924 int datarate = 0, ssi_signal = 0;
4b9841d3 3925 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 3926
3927 len = recv(sock, buf, sizeof(buf), 0);
3928 if (len < 0) {
3929 perror("recv");
3930 return;
3931 }
3932
3933 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
3934 printf("received invalid radiotap frame\n");
3935 return;
3936 }
3937
0915d02c
JM		 3938 while (1) {
3939 ret = ieee80211_radiotap_iterator_next(&iter);
3940 if (ret == -ENOENT)
3941 break;
3942 if (ret) {
3943 printf("received invalid radiotap frame (%d)\n", ret);
3944 return;
3945 }
3946 switch (iter.this_arg_index) {
3947 case IEEE80211_RADIOTAP_FLAGS:
3948 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
3949 len -= 4;
3950 break;
3951 case IEEE80211_RADIOTAP_RX_FLAGS:
3952 rxflags = 1;
3953 break;
3954 case IEEE80211_RADIOTAP_TX_FLAGS:
3955 injected = 1;
3956 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
3957 IEEE80211_RADIOTAP_F_TX_FAIL;
3958 break;
3959 case IEEE80211_RADIOTAP_DATA_RETRIES:
3960 break;
3961 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 3962 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 3963 break;
3964 case IEEE80211_RADIOTAP_RATE:
2a8b7416 3965 datarate = *iter.this_arg * 5;
0915d02c
JM		 3966 break;
3967 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 3968 ssi_signal = *iter.this_arg;
0915d02c
JM		 3969 break;
3970 }
3971 }
3972
3973 if (rxflags && injected)
3974 return;
3975
3976 if (!injected)
4b9841d3 3977 handle_frame(drv, buf + iter.max_length,
2a8b7416 3978 len - iter.max_length, datarate, ssi_signal);
0915d02c 3979 else
4b9841d3
JM		 3980 handle_tx_callback(drv->ctx, buf + iter.max_length,
3981 len - iter.max_length, !failed);
0915d02c
JM		 3982}
3983
3984
3985/*
3986 * we post-process the filter code later and rewrite
3987 * this to the offset to the last instruction
3988 */
3989#define PASS 0xFF
3990#define FAIL 0xFE
3991
3992static struct sock_filter msock_filter_insns[] = {
3993 /*
3994 * do a little-endian load of the radiotap length field
3995 */
3996 /* load lower byte into A */
3997 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
3998 /* put it into X (== index register) */
3999 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4000 /* load upper byte into A */
4001 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
4002 /* left-shift it by 8 */
4003 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
4004 /* or with X */
4005 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
4006 /* put result into X */
4007 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4008
4009 /*
4010 * Allow management frames through, this also gives us those
4011 * management frames that we sent ourselves with status
4012 */
4013 /* load the lower byte of the IEEE 802.11 frame control field */
4014 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4015 /* mask off frame type and version */
4016 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
4017 /* accept frame if it's both 0, fall through otherwise */
4018 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
4019
4020 /*
4021 * TODO: add a bit to radiotap RX flags that indicates
4022 * that the sending station is not associated, then
4023 * add a filter here that filters on our DA and that flag
4024 * to allow us to deauth frames to that bad station.
4025 *
65ae1afd 4026 * For now allow all To DS data frames through.
0915d02c 4027 */
65ae1afd
HS		 4028 /* load the IEEE 802.11 frame control field */
4029 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
4030 /* mask off frame type, version and DS status */
4031 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
4032 /* accept frame if version 0, type 2 and To DS, fall through otherwise
4033 */
4034 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 4035
4036#if 0
4037 /*
fbbfcbac 4038 * drop non-data frames
0915d02c
JM		 4039 */
4040 /* load the lower byte of the frame control field */
4041 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4042 /* mask off QoS bit */
4043 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
4044 /* drop non-data frames */
4045 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 4046#endif
0915d02c 4047 /* load the upper byte of the frame control field */
fbbfcbac 4048 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 4049 /* mask off toDS/fromDS */
4050 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 4051 /* accept WDS frames */
4052 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 4053
4054 /*
4055 * add header length to index
4056 */
4057 /* load the lower byte of the frame control field */
4058 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4059 /* mask off QoS bit */
4060 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
4061 /* right shift it by 6 to give 0 or 2 */
4062 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
4063 /* add data frame header length */
4064 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
4065 /* add index, was start of 802.11 header */
4066 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
4067 /* move to index, now start of LL header */
4068 BPF_STMT(BPF_MISC | BPF_TAX, 0),
4069
4070 /*
4071 * Accept empty data frames, we use those for
4072 * polling activity.
4073 */
4074 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
4075 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
4076
4077 /*
4078 * Accept EAPOL frames
4079 */
4080 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
4081 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
4082 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
4083 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
4084
4085 /* keep these last two statements or change the code below */
4086 /* return 0 == "DROP" */
4087 BPF_STMT(BPF_RET | BPF_K, 0),
4088 /* return ~0 == "keep all" */
4089 BPF_STMT(BPF_RET | BPF_K, ~0),
4090};
4091
4092static struct sock_fprog msock_filter = {
4093 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
4094 .filter = msock_filter_insns,
4095};
4096
4097
4098static int add_monitor_filter(int s)
4099{
4100 int idx;
4101
4102 /* rewrite all PASS/FAIL jump offsets */
4103 for (idx = 0; idx < msock_filter.len; idx++) {
4104 struct sock_filter *insn = &msock_filter_insns[idx];
4105
4106 if (BPF_CLASS(insn->code) == BPF_JMP) {
4107 if (insn->code == (BPF_JMP|BPF_JA)) {
4108 if (insn->k == PASS)
4109 insn->k = msock_filter.len - idx - 2;
4110 else if (insn->k == FAIL)
4111 insn->k = msock_filter.len - idx - 3;
4112 }
4113
4114 if (insn->jt == PASS)
4115 insn->jt = msock_filter.len - idx - 2;
4116 else if (insn->jt == FAIL)
4117 insn->jt = msock_filter.len - idx - 3;
4118
4119 if (insn->jf == PASS)
4120 insn->jf = msock_filter.len - idx - 2;
4121 else if (insn->jf == FAIL)
4122 insn->jf = msock_filter.len - idx - 3;
4123 }
4124 }
4125
4126 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
4127 &msock_filter, sizeof(msock_filter))) {
4128 perror("SO_ATTACH_FILTER");
4129 return -1;
4130 }
4131
4132 return 0;
4133}
4134
4135
460456f8
JM		 4136static void nl80211_remove_monitor_interface(
4137 struct wpa_driver_nl80211_data *drv)
4138{
4139 if (drv->monitor_ifidx >= 0) {
4140 nl80211_remove_iface(drv, drv->monitor_ifidx);
4141 drv->monitor_ifidx = -1;
4142 }
504e905c
JM		 4143 if (drv->monitor_sock >= 0) {
4144 eloop_unregister_read_sock(drv->monitor_sock);
4145 close(drv->monitor_sock);
4146 drv->monitor_sock = -1;
4147 }
460456f8
JM		 4148}
4149
4150
0915d02c
JM		 4151static int
4152nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
4153{
4154 char buf[IFNAMSIZ];
4155 struct sockaddr_ll ll;
4156 int optval;
4157 socklen_t optlen;
0915d02c 4158
a2e40bb6 4159 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
0915d02c
JM		 4160 buf[IFNAMSIZ - 1] = '\0';
4161
4162 drv->monitor_ifidx =
fbbfcbac
FF		 4163 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
4164 0);
0915d02c
JM		 4165
4166 if (drv->monitor_ifidx < 0)
4167 return -1;
4168
34f2f814 4169 if (linux_set_iface_flags(drv->ioctl_sock, buf, 1))
0915d02c 4170 goto error;
0915d02c
JM		 4171
4172 memset(&ll, 0, sizeof(ll));
4173 ll.sll_family = AF_PACKET;
4174 ll.sll_ifindex = drv->monitor_ifidx;
4175 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
4176 if (drv->monitor_sock < 0) {
4177 perror("socket[PF_PACKET,SOCK_RAW]");
4178 goto error;
4179 }
4180
4181 if (add_monitor_filter(drv->monitor_sock)) {
4182 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
4183 "interface; do filtering in user space");
4184 /* This works, but will cost in performance. */
4185 }
4186
2135f224 4187 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 4188 perror("monitor socket bind");
4189 goto error;
4190 }
4191
4192 optlen = sizeof(optval);
4193 optval = 20;
4194 if (setsockopt
4195 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
4196 perror("Failed to set socket priority");
4197 goto error;
4198 }
4199
4200 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
4201 drv, NULL)) {
4202 printf("Could not register monitor read socket\n");
4203 goto error;
4204 }
4205
4206 return 0;
4207 error:
460456f8 4208 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 4209 return -1;
4210}
4211
db149ac9
JM		 4212
4213static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
4214
4215static int wpa_driver_nl80211_hapd_send_eapol(
4216 void *priv, const u8 *addr, const u8 *data,
4217 size_t data_len, int encrypt, const u8 *own_addr)
4218{
a2e40bb6
FF		 4219 struct i802_bss *bss = priv;
4220 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 4221 struct ieee80211_hdr *hdr;
4222 size_t len;
4223 u8 *pos;
4224 int res;
4225#if 0 /* FIX */
0de39516 4226 int qos = sta->flags & WPA_STA_WMM;
db149ac9
JM		 4227#else
4228 int qos = 0;
4229#endif
4230
4231 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
4232 data_len;
4233 hdr = os_zalloc(len);
4234 if (hdr == NULL) {
4235 printf("malloc() failed for i802_send_data(len=%lu)\n",
4236 (unsigned long) len);
4237 return -1;
4238 }
4239
4240 hdr->frame_control =
4241 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
4242 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
4243 if (encrypt)
4244 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
4245#if 0 /* To be enabled if qos determination is added above */
4246 if (qos) {
4247 hdr->frame_control |=
4248 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
4249 }
4250#endif
4251
4252 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
4253 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
4254 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
4255 pos = (u8 *) (hdr + 1);
4256
4257#if 0 /* To be enabled if qos determination is added above */
4258 if (qos) {
4259 /* add an empty QoS header if needed */
4260 pos[0] = 0;
4261 pos[1] = 0;
4262 pos += 2;
4263 }
4264#endif
4265
4266 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
4267 pos += sizeof(rfc1042_header);
4268 WPA_PUT_BE16(pos, ETH_P_PAE);
4269 pos += 2;
4270 memcpy(pos, data, data_len);
4271
4272 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
4273 if (res < 0) {
4274 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
4275 "failed: %d (%s)",
4276 (unsigned long) len, errno, strerror(errno));
4277 }
7bf12757 4278 os_free(hdr);
db149ac9
JM		 4279
4280 return res;
4281}
4282
a8d6ffa4 4283
7e76ee9c
JM		 4284static u32 sta_flags_nl80211(int flags)
4285{
4286 u32 f = 0;
4287
0de39516 4288 if (flags & WPA_STA_AUTHORIZED)
7e76ee9c 4289 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
0de39516 4290 if (flags & WPA_STA_WMM)
7e76ee9c 4291 f |= BIT(NL80211_STA_FLAG_WME);
0de39516 4292 if (flags & WPA_STA_SHORT_PREAMBLE)
7e76ee9c 4293 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
0de39516 4294 if (flags & WPA_STA_MFP)
7e76ee9c
JM		 4295 f |= BIT(NL80211_STA_FLAG_MFP);
4296
4297 return f;
4298}
4299
4300
3234cba4
JM		 4301static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
4302 int total_flags,
4c32757d 4303 int flags_or, int flags_and)
a8d6ffa4 4304{
a2e40bb6
FF		 4305 struct i802_bss *bss = priv;
4306 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 4307 struct nl_msg *msg, *flags = NULL;
7e76ee9c 4308 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 4309
4310 msg = nlmsg_alloc();
4311 if (!msg)
4312 return -ENOMEM;
4313
4314 flags = nlmsg_alloc();
4315 if (!flags) {
4316 nlmsg_free(msg);
4317 return -ENOMEM;
4318 }
4319
4320 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4321 0, NL80211_CMD_SET_STATION, 0);
4322
4323 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 4324 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 4325 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4326
7e76ee9c
JM		 4327 /*
4328 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
4329 * can be removed eventually.
4330 */
0de39516 4331 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 4332 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
4333
0de39516 4334 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 4335 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
4336
0de39516 4337 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 4338 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
4339
0de39516 4340 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 4341 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
4342
4343 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
4344 goto nla_put_failure;
4345
7e76ee9c
JM		 4346 os_memset(&upd, 0, sizeof(upd));
4347 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
4348 upd.set = sta_flags_nl80211(flags_or);
4349 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4350
a8d6ffa4
JM		 4351 nlmsg_free(flags);
4352
4353 return send_and_recv_msgs(drv, msg, NULL, NULL);
4354 nla_put_failure:
4355 nlmsg_free(flags);
4356 return -ENOBUFS;
4357}
4358
0915d02c 4359
1581b38b
JM		 4360static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
4361 struct wpa_driver_associate_params *params)
4362{
046b26a2
JM		 4363 if (params->p2p)
4364 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
4365 "group (GO)");
a2e40bb6 4366 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode) ||
f019981a 4367 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 4368 nl80211_remove_monitor_interface(drv);
1581b38b 4369 return -1;
0915d02c 4370 }
1581b38b
JM		 4371
4372 /* TODO: setup monitor interface (and add code somewhere to remove this
4373 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
1581b38b
JM		 4374
4375 return 0;
4376}
1581b38b
JM		 4377
4378
5cc4d64b
JM		 4379static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
4380{
4381 struct nl_msg *msg;
4382 int ret = -1;
4383
4384 msg = nlmsg_alloc();
4385 if (!msg)
4386 return -1;
4387
4388 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4389 NL80211_CMD_LEAVE_IBSS, 0);
4390 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4391 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4392 msg = NULL;
4393 if (ret) {
4394 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
4395 "(%s)", ret, strerror(-ret));
4396 goto nla_put_failure;
4397 }
4398
4399 ret = 0;
4400 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
4401
4402nla_put_failure:
4403 nlmsg_free(msg);
4404 return ret;
4405}
4406
4407
4408static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
4409 struct wpa_driver_associate_params *params)
4410{
4411 struct nl_msg *msg;
4412 int ret = -1;
4413 int count = 0;
4414
4415 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
4416
a2e40bb6 4417 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode)) {
5cc4d64b
JM		 4418 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
4419 "IBSS mode");
4420 return -1;
4421 }
4422
4423retry:
4424 msg = nlmsg_alloc();
4425 if (!msg)
4426 return -1;
4427
4428 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4429 NL80211_CMD_JOIN_IBSS, 0);
4430 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4431
4432 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
4433 goto nla_put_failure;
4434
4435 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4436 params->ssid, params->ssid_len);
4437 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4438 params->ssid);
4439 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4440 drv->ssid_len = params->ssid_len;
4441
4442 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4443 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4444
4445 ret = nl80211_set_conn_keys(params, msg);
4446 if (ret)
4447 goto nla_put_failure;
4448
a95795ad
JM		 4449 if (params->wpa_ie) {
4450 wpa_hexdump(MSG_DEBUG,
4451 " * Extra IEs for Beacon/Probe Response frames",
4452 params->wpa_ie, params->wpa_ie_len);
4453 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4454 params->wpa_ie);
4455 }
4456
5cc4d64b
JM		 4457 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4458 msg = NULL;
4459 if (ret) {
4460 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
4461 ret, strerror(-ret));
4462 count++;
4463 if (ret == -EALREADY && count == 1) {
4464 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
4465 "forced leave");
4466 nl80211_leave_ibss(drv);
4467 nlmsg_free(msg);
4468 goto retry;
4469 }
4470
4471 goto nla_put_failure;
4472 }
4473 ret = 0;
4474 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
4475
4476nla_put_failure:
4477 nlmsg_free(msg);
4478 return ret;
4479}
4480
4481
cfaab580
ZY		 4482static int wpa_driver_nl80211_connect(
4483 struct wpa_driver_nl80211_data *drv,
4484 struct wpa_driver_associate_params *params)
4485{
4486 struct nl_msg *msg;
4487 enum nl80211_auth_type type;
4488 int ret = 0;
4489
4490 msg = nlmsg_alloc();
4491 if (!msg)
4492 return -1;
4493
4494 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
4495 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4496 NL80211_CMD_CONNECT, 0);
4497
4498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4499 if (params->bssid) {
4500 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4501 MAC2STR(params->bssid));
4502 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4503 }
4504 if (params->freq) {
4505 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4506 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4507 }
4508 if (params->ssid) {
4509 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4510 params->ssid, params->ssid_len);
4511 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4512 params->ssid);
4513 if (params->ssid_len > sizeof(drv->ssid))
4514 goto nla_put_failure;
4515 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4516 drv->ssid_len = params->ssid_len;
4517 }
4518 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
4519 if (params->wpa_ie)
4520 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4521 params->wpa_ie);
4522
abd9fafa 4523 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 4524 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 4525 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 4526 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 4527 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 4528 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 4529 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 4530 type = NL80211_AUTHTYPE_FT;
4531 else
4532 goto nla_put_failure;
4533
4534 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4535 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
4536
4537 if (params->wpa_ie && params->wpa_ie_len) {
4538 enum nl80211_wpa_versions ver;
4539
4540 if (params->wpa_ie[0] == WLAN_EID_RSN)
4541 ver = NL80211_WPA_VERSION_2;
4542 else
4543 ver = NL80211_WPA_VERSION_1;
4544
4545 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
4546 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
4547 }
4548
4549 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 4550 int cipher;
cfaab580
ZY		 4551
4552 switch (params->pairwise_suite) {
4553 case CIPHER_WEP40:
4554 cipher = WLAN_CIPHER_SUITE_WEP40;
4555 break;
4556 case CIPHER_WEP104:
4557 cipher = WLAN_CIPHER_SUITE_WEP104;
4558 break;
4559 case CIPHER_CCMP:
4560 cipher = WLAN_CIPHER_SUITE_CCMP;
4561 break;
4562 case CIPHER_TKIP:
4563 default:
4564 cipher = WLAN_CIPHER_SUITE_TKIP;
4565 break;
4566 }
4567 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
4568 }
4569
4570 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 4571 int cipher;
cfaab580
ZY		 4572
4573 switch (params->group_suite) {
4574 case CIPHER_WEP40:
4575 cipher = WLAN_CIPHER_SUITE_WEP40;
4576 break;
4577 case CIPHER_WEP104:
4578 cipher = WLAN_CIPHER_SUITE_WEP104;
4579 break;
4580 case CIPHER_CCMP:
4581 cipher = WLAN_CIPHER_SUITE_CCMP;
4582 break;
4583 case CIPHER_TKIP:
4584 default:
4585 cipher = WLAN_CIPHER_SUITE_TKIP;
4586 break;
4587 }
4588 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
4589 }
4590
4591 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
4592 params->key_mgmt_suite == KEY_MGMT_PSK) {
4593 int mgmt = WLAN_AKM_SUITE_PSK;
4594
4595 switch (params->key_mgmt_suite) {
4596 case KEY_MGMT_802_1X:
4597 mgmt = WLAN_AKM_SUITE_8021X;
4598 break;
4599 case KEY_MGMT_PSK:
4600 default:
4601 mgmt = WLAN_AKM_SUITE_PSK;
4602 break;
4603 }
4604 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
4605 }
4606
4607 ret = nl80211_set_conn_keys(params, msg);
4608 if (ret)
4609 goto nla_put_failure;
4610
4611 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4612 msg = NULL;
4613 if (ret) {
4614 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
4615 "(%s)", ret, strerror(-ret));
4616 goto nla_put_failure;
4617 }
4618 ret = 0;
4619 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
4620
4621nla_put_failure:
4622 nlmsg_free(msg);
4623 return ret;
4624
4625}
4626
4627
c2a04078
JM		 4628static int wpa_driver_nl80211_associate(
4629 void *priv, struct wpa_driver_associate_params *params)
4630{
a2e40bb6
FF		 4631 struct i802_bss *bss = priv;
4632 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 4633 int ret = -1;
4634 struct nl_msg *msg;
4635
5cc4d64b 4636 if (params->mode == IEEE80211_MODE_AP)
1581b38b 4637 return wpa_driver_nl80211_ap(drv, params);
1581b38b 4638
5cc4d64b
JM		 4639 if (params->mode == IEEE80211_MODE_IBSS)
4640 return wpa_driver_nl80211_ibss(drv, params);
4641
4a867032 4642 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
a2e40bb6 4643 if (wpa_driver_nl80211_set_mode(priv, params->mode) < 0)
4a867032 4644 return -1;
cfaab580 4645 return wpa_driver_nl80211_connect(drv, params);
4a867032 4646 }
cfaab580 4647
c2a04078
JM		 4648 drv->associated = 0;
4649
4650 msg = nlmsg_alloc();
4651 if (!msg)
4652 return -1;
4653
4654 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
4655 drv->ifindex);
4656 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4657 NL80211_CMD_ASSOCIATE, 0);
4658
4659 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4660 if (params->bssid) {
4661 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4662 MAC2STR(params->bssid));
4663 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4664 }
4665 if (params->freq) {
4666 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4667 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 4668 drv->assoc_freq = params->freq;
4669 } else
4670 drv->assoc_freq = 0;
c2a04078
JM		 4671 if (params->ssid) {
4672 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4673 params->ssid, params->ssid_len);
4674 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4675 params->ssid);
fd05d64e
JM		 4676 if (params->ssid_len > sizeof(drv->ssid))
4677 goto nla_put_failure;
4678 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4679 drv->ssid_len = params->ssid_len;
c2a04078
JM		 4680 }
4681 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
4682 if (params->wpa_ie)
4683 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4684 params->wpa_ie);
4685
aca01605
JM		 4686 if (params->pairwise_suite != CIPHER_NONE) {
4687 int cipher;
4688
4689 switch (params->pairwise_suite) {
4690 case CIPHER_WEP40:
4691 cipher = WLAN_CIPHER_SUITE_WEP40;
4692 break;
4693 case CIPHER_WEP104:
4694 cipher = WLAN_CIPHER_SUITE_WEP104;
4695 break;
4696 case CIPHER_CCMP:
4697 cipher = WLAN_CIPHER_SUITE_CCMP;
4698 break;
4699 case CIPHER_TKIP:
4700 default:
4701 cipher = WLAN_CIPHER_SUITE_TKIP;
4702 break;
4703 }
79c3124c 4704 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 4705 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
4706 }
4707
4708 if (params->group_suite != CIPHER_NONE) {
4709 int cipher;
4710
4711 switch (params->group_suite) {
4712 case CIPHER_WEP40:
4713 cipher = WLAN_CIPHER_SUITE_WEP40;
4714 break;
4715 case CIPHER_WEP104:
4716 cipher = WLAN_CIPHER_SUITE_WEP104;
4717 break;
4718 case CIPHER_CCMP:
4719 cipher = WLAN_CIPHER_SUITE_CCMP;
4720 break;
4721 case CIPHER_TKIP:
4722 default:
4723 cipher = WLAN_CIPHER_SUITE_TKIP;
4724 break;
4725 }
79c3124c 4726 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 4727 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
4728 }
4729
e572fa33
JM		 4730#ifdef CONFIG_IEEE80211W
4731 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
4732 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
4733#endif /* CONFIG_IEEE80211W */
4734
01652550
JM		 4735 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
4736
62fa124c
JM		 4737 if (params->prev_bssid) {
4738 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
4739 MAC2STR(params->prev_bssid));
4740 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
4741 params->prev_bssid);
4742 }
4743
046b26a2
JM		 4744 if (params->p2p)
4745 wpa_printf(MSG_DEBUG, " * P2P group");
4746
c2a04078
JM		 4747 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4748 msg = NULL;
4749 if (ret) {
4750 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
4751 "(%s)", ret, strerror(-ret));
8856462d 4752 nl80211_dump_scan(drv);
c2a04078
JM		 4753 goto nla_put_failure;
4754 }
4755 ret = 0;
4756 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
4757 "successfully");
4758
4759nla_put_failure:
4760 nlmsg_free(msg);
4761 return ret;
4762}
3f5285e8
JM		 4763
4764
ad1e68e6
JM		 4765static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
4766 int ifindex, int mode)
3f5285e8 4767{
3f5285e8 4768 struct nl_msg *msg;
ad1e68e6
JM		 4769 int ret = -ENOBUFS;
4770
4771 msg = nlmsg_alloc();
4772 if (!msg)
4773 return -ENOMEM;
4774
4775 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4776 0, NL80211_CMD_SET_INTERFACE, 0);
4777 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4778 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
4779
4780 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4781 if (!ret)
4782 return 0;
4783nla_put_failure:
4784 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
4785 " %d (%s)", ifindex, mode, ret, strerror(-ret));
4786 return ret;
4787}
4788
4789
4790static int wpa_driver_nl80211_set_mode(void *priv, int mode)
4791{
a2e40bb6
FF		 4792 struct i802_bss *bss = priv;
4793 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 4794 int ret = -1;
1581b38b 4795 int nlmode;
26af9dca 4796 int i;
1581b38b
JM		 4797
4798 switch (mode) {
4799 case 0:
4800 nlmode = NL80211_IFTYPE_STATION;
4801 break;
4802 case 1:
4803 nlmode = NL80211_IFTYPE_ADHOC;
4804 break;
4805 case 2:
4806 nlmode = NL80211_IFTYPE_AP;
4807 break;
4808 default:
4809 return -1;
4810 }
3f5285e8 4811
ad1e68e6
JM		 4812 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
4813 drv->nlmode = nlmode;
460456f8
JM		 4814 ret = 0;
4815 goto done;
ad1e68e6 4816 }
3f5285e8 4817
460456f8 4818 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 4819 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
4820 "requested mode - ignore error");
460456f8
JM		 4821 ret = 0;
4822 goto done; /* Already in the requested mode */
4823 }
3f5285e8 4824
3f5285e8
JM		 4825 /* mac80211 doesn't allow mode changes while the device is up, so
4826 * take the device down, try to set the mode again, and bring the
4827 * device back up.
4828 */
26af9dca
JM		 4829 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
4830 "interface down");
4831 for (i = 0; i < 10; i++) {
4832 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0) ==
4833 0) {
4834 /* Try to set the mode again while the interface is
4835 * down */
4836 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
4837 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname,
4838 1))
4839 ret = -1;
4840 if (!ret)
4841 break;
4842 } else
4843 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
4844 "interface down");
4845 os_sleep(0, 100000);
3f5285e8
JM		 4846 }
4847
c6e8e8e4
JM		 4848 if (!ret) {
4849 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
4850 "interface is down");
ad1e68e6 4851 drv->nlmode = nlmode;
c6e8e8e4 4852 }
ad1e68e6 4853
460456f8 4854done:
460456f8
JM		 4855 if (!ret && nlmode == NL80211_IFTYPE_AP) {
4856 /* Setup additional AP mode functionality if needed */
4857 if (drv->monitor_ifidx < 0 &&
4858 nl80211_create_monitor_interface(drv))
4859 return -1;
4860 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
4861 /* Remove additional AP mode functionality */
4862 nl80211_remove_monitor_interface(drv);
a2e40bb6 4863 bss->beacon_set = 0;
460456f8 4864 }
460456f8 4865
c6e8e8e4
JM		 4866 if (ret)
4867 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
4868 "from %d failed", nlmode, drv->nlmode);
4869
3f5285e8
JM		 4870 return ret;
4871}
4872
4873
3f5285e8
JM		 4874static int wpa_driver_nl80211_get_capa(void *priv,
4875 struct wpa_driver_capa *capa)
4876{
a2e40bb6
FF		 4877 struct i802_bss *bss = priv;
4878 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 4879 if (!drv->has_capability)
4880 return -1;
4881 os_memcpy(capa, &drv->capa, sizeof(*capa));
4882 return 0;
4883}
4884
4885
4886static int wpa_driver_nl80211_set_operstate(void *priv, int state)
4887{
a2e40bb6
FF		 4888 struct i802_bss *bss = priv;
4889 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 4890
4891 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
4892 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
4893 drv->operstate = state;
08063178 4894 return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
e2d02c29 4895 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 4896}
4897
01652550
JM		 4898
4899static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
4900{
a2e40bb6
FF		 4901 struct i802_bss *bss = priv;
4902 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 4903 struct nl_msg *msg;
4904 struct nl80211_sta_flag_update upd;
4905
4906 msg = nlmsg_alloc();
4907 if (!msg)
4908 return -ENOMEM;
4909
4910 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4911 0, NL80211_CMD_SET_STATION, 0);
4912
4913 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 4914 if_nametoindex(bss->ifname));
01652550
JM		 4915 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
4916
4917 os_memset(&upd, 0, sizeof(upd));
4918 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
4919 if (authorized)
4920 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
4921 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4922
4923 return send_and_recv_msgs(drv, msg, NULL, NULL);
4924 nla_put_failure:
4925 return -ENOBUFS;
4926}
4927
3f5285e8 4928
c5121837
JM		 4929#ifdef HOSTAPD
4930
c5121837
JM		 4931static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4932{
4933 int i;
4934 int *old;
4935
4936 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
4937 ifidx);
4938 for (i = 0; i < drv->num_if_indices; i++) {
4939 if (drv->if_indices[i] == 0) {
4940 drv->if_indices[i] = ifidx;
4941 return;
4942 }
4943 }
4944
4945 if (drv->if_indices != drv->default_if_indices)
4946 old = drv->if_indices;
4947 else
4948 old = NULL;
4949
7bf12757
JM		 4950 drv->if_indices = os_realloc(old,
4951 sizeof(int) * (drv->num_if_indices + 1));
c5121837
JM		 4952 if (!drv->if_indices) {
4953 if (!old)
4954 drv->if_indices = drv->default_if_indices;
4955 else
4956 drv->if_indices = old;
4957 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
4958 "interfaces");
4959 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
4960 return;
0ab7a701
B		 4961 } else if (!old)
4962 os_memcpy(drv->if_indices, drv->default_if_indices,
4963 sizeof(drv->default_if_indices));
c5121837
JM		 4964 drv->if_indices[drv->num_if_indices] = ifidx;
4965 drv->num_if_indices++;
4966}
4967
4968
4969static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4970{
4971 int i;
4972
4973 for (i = 0; i < drv->num_if_indices; i++) {
4974 if (drv->if_indices[i] == ifidx) {
4975 drv->if_indices[i] = 0;
4976 break;
4977 }
4978 }
4979}
4980
4981
4982static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4983{
4984 int i;
4985
4986 for (i = 0; i < drv->num_if_indices; i++)
4987 if (drv->if_indices[i] == ifidx)
4988 return 1;
4989
4990 return 0;
4991}
4992
4993
c5121837
JM		 4994static inline int min_int(int a, int b)
4995{
4996 if (a < b)
4997 return a;
4998 return b;
4999}
5000
5001
5002static int get_key_handler(struct nl_msg *msg, void *arg)
5003{
5004 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5005 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5006
5007 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5008 genlmsg_attrlen(gnlh, 0), NULL);
5009
5010 /*
5011 * TODO: validate the key index and mac address!
5012 * Otherwise, there's a race condition as soon as
5013 * the kernel starts sending key notifications.
5014 */
5015
5016 if (tb[NL80211_ATTR_KEY_SEQ])
5017 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
5018 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
5019 return NL_SKIP;
5020}
5021
5022
5023static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
5024 int idx, u8 *seq)
5025{
a2e40bb6
FF		 5026 struct i802_bss *bss = priv;
5027 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5028 struct nl_msg *msg;
5029
5030 msg = nlmsg_alloc();
5031 if (!msg)
5032 return -ENOMEM;
5033
5034 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5035 0, NL80211_CMD_GET_KEY, 0);
5036
5037 if (addr)
5038 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5039 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
5040 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
5041
5042 memset(seq, 0, 6);
5043
5044 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
5045 nla_put_failure:
5046 return -ENOBUFS;
5047}
5048
5049
5050static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
5051 int mode)
5052{
a2e40bb6
FF		 5053 struct i802_bss *bss = priv;
5054 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5055 struct nl_msg *msg;
5056 u8 rates[NL80211_MAX_SUPP_RATES];
5057 u8 rates_len = 0;
5058 int i;
5059
5060 msg = nlmsg_alloc();
5061 if (!msg)
5062 return -ENOMEM;
5063
5064 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5065 NL80211_CMD_SET_BSS, 0);
5066
5067 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
5068 rates[rates_len++] = basic_rates[i] / 5;
5069
5070 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5071
a2e40bb6 5072 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5073
5074 return send_and_recv_msgs(drv, msg, NULL, NULL);
5075 nla_put_failure:
5076 return -ENOBUFS;
5077}
5078
e3802622
JM		 5079#endif /* HOSTAPD */
5080
c5121837 5081
c5121837
JM		 5082/* Set kernel driver on given frequency (MHz) */
5083static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
5084{
a2e40bb6
FF		 5085 struct i802_bss *bss = priv;
5086 struct wpa_driver_nl80211_data *drv = bss->drv;
f019981a
JM		 5087 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
5088 freq->sec_channel_offset);
c5121837
JM		 5089}
5090
5091
e3802622
JM		 5092#ifdef HOSTAPD
5093
c5121837
JM		 5094static int i802_set_rts(void *priv, int rts)
5095{
a2e40bb6
FF		 5096 struct i802_bss *bss = priv;
5097 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5098 struct nl_msg *msg;
5099 int ret = -ENOBUFS;
5100 u32 val;
c5121837 5101
ad649451
JM		 5102 msg = nlmsg_alloc();
5103 if (!msg)
5104 return -ENOMEM;
c5121837 5105
ad649451
JM		 5106 if (rts >= 2347)
5107 val = (u32) -1;
5108 else
5109 val = rts;
c5121837 5110
ad649451
JM		 5111 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5112 0, NL80211_CMD_SET_WIPHY, 0);
5113 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5114 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
5115
5116 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5117 if (!ret)
5118 return 0;
5119nla_put_failure:
5120 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
5121 "%d (%s)", rts, ret, strerror(-ret));
5122 return ret;
c5121837
JM		 5123}
5124
5125
5126static int i802_set_frag(void *priv, int frag)
5127{
a2e40bb6
FF		 5128 struct i802_bss *bss = priv;
5129 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5130 struct nl_msg *msg;
5131 int ret = -ENOBUFS;
5132 u32 val;
c5121837 5133
ad649451
JM		 5134 msg = nlmsg_alloc();
5135 if (!msg)
5136 return -ENOMEM;
c5121837 5137
ad649451
JM		 5138 if (frag >= 2346)
5139 val = (u32) -1;
5140 else
5141 val = frag;
c5121837 5142
ad649451
JM		 5143 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5144 0, NL80211_CMD_SET_WIPHY, 0);
5145 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5146 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
5147
5148 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5149 if (!ret)
5150 return 0;
5151nla_put_failure:
5152 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
5153 "%d: %d (%s)", frag, ret, strerror(-ret));
5154 return ret;
c5121837
JM		 5155}
5156
5157
c5121837
JM		 5158static int i802_flush(void *priv)
5159{
a2e40bb6
FF		 5160 struct i802_bss *bss = priv;
5161 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5162 struct nl_msg *msg;
5163
5164 msg = nlmsg_alloc();
5165 if (!msg)
5166 return -1;
5167
5168 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5169 0, NL80211_CMD_DEL_STATION, 0);
5170
5171 /*
5172 * XXX: FIX! this needs to flush all VLANs too
5173 */
5174 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5175 if_nametoindex(bss->ifname));
c5121837
JM		 5176
5177 return send_and_recv_msgs(drv, msg, NULL, NULL);
5178 nla_put_failure:
5179 return -ENOBUFS;
5180}
5181
5182
5183static int get_sta_handler(struct nl_msg *msg, void *arg)
5184{
5185 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5186 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5187 struct hostap_sta_driver_data *data = arg;
5188 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
5189 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
5190 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
5191 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
5192 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
5193 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
5194 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
5195 };
5196
5197 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5198 genlmsg_attrlen(gnlh, 0), NULL);
5199
5200 /*
5201 * TODO: validate the interface and mac address!
5202 * Otherwise, there's a race condition as soon as
5203 * the kernel starts sending station notifications.
5204 */
5205
5206 if (!tb[NL80211_ATTR_STA_INFO]) {
5207 wpa_printf(MSG_DEBUG, "sta stats missing!");
5208 return NL_SKIP;
5209 }
5210 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
5211 tb[NL80211_ATTR_STA_INFO],
5212 stats_policy)) {
5213 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
5214 return NL_SKIP;
5215 }
5216
5217 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
5218 data->inactive_msec =
5219 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
5220 if (stats[NL80211_STA_INFO_RX_BYTES])
5221 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
5222 if (stats[NL80211_STA_INFO_TX_BYTES])
5223 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
5224 if (stats[NL80211_STA_INFO_RX_PACKETS])
5225 data->rx_packets =
5226 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
5227 if (stats[NL80211_STA_INFO_TX_PACKETS])
5228 data->tx_packets =
5229 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
5230
5231 return NL_SKIP;
5232}
5233
5234static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
5235 const u8 *addr)
5236{
a2e40bb6
FF		 5237 struct i802_bss *bss = priv;
5238 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5239 struct nl_msg *msg;
5240
5241 os_memset(data, 0, sizeof(*data));
5242 msg = nlmsg_alloc();
5243 if (!msg)
5244 return -ENOMEM;
5245
5246 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5247 0, NL80211_CMD_GET_STATION, 0);
5248
5249 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 5250 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5251
5252 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
5253 nla_put_failure:
5254 return -ENOBUFS;
5255}
5256
5257
c5121837
JM		 5258static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
5259 int cw_min, int cw_max, int burst_time)
5260{
a2e40bb6
FF		 5261 struct i802_bss *bss = priv;
5262 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5263 struct nl_msg *msg;
5264 struct nlattr *txq, *params;
5265
5266 msg = nlmsg_alloc();
5267 if (!msg)
5268 return -1;
5269
5270 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5271 0, NL80211_CMD_SET_WIPHY, 0);
5272
a2e40bb6 5273 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5274
5275 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
5276 if (!txq)
5277 goto nla_put_failure;
5278
5279 /* We are only sending parameters for a single TXQ at a time */
5280 params = nla_nest_start(msg, 1);
5281 if (!params)
5282 goto nla_put_failure;
5283
7e3c1781
JM		 5284 switch (queue) {
5285 case 0:
5286 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
5287 break;
5288 case 1:
5289 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
5290 break;
5291 case 2:
5292 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
5293 break;
5294 case 3:
5295 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
5296 break;
5297 }
c5121837
JM		 5298 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
5299 * 32 usec, so need to convert the value here. */
5300 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
5301 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
5302 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
5303 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
5304
5305 nla_nest_end(msg, params);
5306
5307 nla_nest_end(msg, txq);
5308
5309 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5310 return 0;
5311 nla_put_failure:
5312 return -1;
5313}
5314
5315
f1bed4a7
HS		 5316static int i802_set_bss(void *priv, int cts, int preamble, int slot,
5317 int ht_opmode)
c5121837 5318{
a2e40bb6
FF		 5319 struct i802_bss *bss = priv;
5320 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5321 struct nl_msg *msg;
5322
5323 msg = nlmsg_alloc();
5324 if (!msg)
5325 return -ENOMEM;
5326
5327 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5328 NL80211_CMD_SET_BSS, 0);
5329
5330 if (cts >= 0)
5331 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5332 if (preamble >= 0)
5333 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5334 if (slot >= 0)
5335 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
f1bed4a7
HS		 5336 if (ht_opmode >= 0)
5337 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
a2e40bb6 5338 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5339
5340 return send_and_recv_msgs(drv, msg, NULL, NULL);
5341 nla_put_failure:
5342 return -ENOBUFS;
5343}
5344
5345
5346static int i802_set_cts_protect(void *priv, int value)
5347{
f1bed4a7 5348 return i802_set_bss(priv, value, -1, -1, -1);
c5121837
JM		 5349}
5350
5351
5352static int i802_set_preamble(void *priv, int value)
5353{
f1bed4a7 5354 return i802_set_bss(priv, -1, value, -1, -1);
c5121837
JM		 5355}
5356
5357
5358static int i802_set_short_slot_time(void *priv, int value)
5359{
f1bed4a7 5360 return i802_set_bss(priv, -1, -1, value, -1);
c5121837
JM		 5361}
5362
5363
c5121837
JM		 5364static int i802_set_sta_vlan(void *priv, const u8 *addr,
5365 const char *ifname, int vlan_id)
5366{
a2e40bb6
FF		 5367 struct i802_bss *bss = priv;
5368 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 5369 struct nl_msg *msg;
cd1d72c1 5370 int ret = -ENOBUFS;
c5121837
JM		 5371
5372 msg = nlmsg_alloc();
5373 if (!msg)
5374 return -ENOMEM;
5375
5376 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5377 0, NL80211_CMD_SET_STATION, 0);
5378
5379 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5380 if_nametoindex(bss->ifname));
c5121837 5381 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 5382 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 5383 if_nametoindex(ifname));
5384
cd1d72c1
JM		 5385 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5386 if (ret < 0) {
5387 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
5388 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
5389 MAC2STR(addr), ifname, vlan_id, ret,
5390 strerror(-ret));
5391 }
c5121837 5392 nla_put_failure:
cd1d72c1 5393 return ret;
c5121837
JM		 5394}
5395
5396
d38ae2ea
FF		 5397static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
5398 const char *bridge_ifname)
fbbfcbac 5399{
a2e40bb6
FF		 5400 struct i802_bss *bss = priv;
5401 struct wpa_driver_nl80211_data *drv = bss->drv;
e748062b 5402 char name[IFNAMSIZ + 1];
fbbfcbac 5403
a2e40bb6 5404 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
e748062b
JM		 5405 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
5406 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
fbbfcbac 5407 if (val) {
d38ae2ea
FF		 5408 if (!if_nametoindex(name)) {
5409 if (nl80211_create_iface(drv, name,
5410 NL80211_IFTYPE_AP_VLAN,
5411 NULL, 1) < 0)
5412 return -1;
5413 if (bridge_ifname &&
5414 linux_br_add_if(drv->ioctl_sock, bridge_ifname,
5415 name) < 0)
5416 return -1;
5417 }
34f2f814 5418 linux_set_iface_flags(drv->ioctl_sock, name, 1);
fbbfcbac
FF		 5419 return i802_set_sta_vlan(priv, addr, name, 0);
5420 } else {
a2e40bb6 5421 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
fbbfcbac
FF		 5422 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
5423 name);
5424 }
5425}
5426
5427
f1bed4a7
HS		 5428static int i802_set_ht_params(void *priv, const u8 *ht_capab,
5429 size_t ht_capab_len, const u8 *ht_oper,
5430 size_t ht_oper_len)
5431{
5432 if (ht_oper_len >= 6) {
5433 /* ht opmode uses 16bit in octet 5 & 6 */
5434 u16 ht_opmode = le_to_host16(((u16 *) ht_oper)[2]);
5435 return i802_set_bss(priv, -1, -1, -1, ht_opmode);
5436 } else
5437 return -1;
5438}
5439
5440
c5121837
JM		 5441static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
5442{
5443 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5444 struct sockaddr_ll lladdr;
5445 unsigned char buf[3000];
5446 int len;
5447 socklen_t fromlen = sizeof(lladdr);
5448
5449 len = recvfrom(sock, buf, sizeof(buf), 0,
5450 (struct sockaddr *)&lladdr, &fromlen);
5451 if (len < 0) {
5452 perror("recv");
5453 return;
5454 }
5455
baac6490
JM		 5456 if (have_ifidx(drv, lladdr.sll_ifindex))
5457 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
c5121837
JM		 5458}
5459
5460
c5121837
JM		 5461static int i802_get_inact_sec(void *priv, const u8 *addr)
5462{
5463 struct hostap_sta_driver_data data;
5464 int ret;
5465
5466 data.inactive_msec = (unsigned long) -1;
5467 ret = i802_read_sta_data(priv, &data, addr);
5468 if (ret || data.inactive_msec == (unsigned long) -1)
5469 return -1;
5470 return data.inactive_msec / 1000;
5471}
5472
5473
5474static int i802_sta_clear_stats(void *priv, const u8 *addr)
5475{
5476#if 0
5477 /* TODO */
5478#endif
5479 return 0;
5480}
5481
ee7ab173
JB		 5482#endif /* HOSTAPD */
5483
5484#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 5485
731723a5
JM		 5486static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
5487 int reason)
c5121837 5488{
a2e40bb6 5489 struct i802_bss *bss = priv;
c5121837
JM		 5490 struct ieee80211_mgmt mgmt;
5491
5492 memset(&mgmt, 0, sizeof(mgmt));
5493 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
5494 WLAN_FC_STYPE_DEAUTH);
5495 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 5496 memcpy(mgmt.sa, own_addr, ETH_ALEN);
5497 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 5498 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 5499 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 5500 IEEE80211_HDRLEN +
5501 sizeof(mgmt.u.deauth));
c5121837
JM		 5502}
5503
5504
731723a5
JM		 5505static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
5506 int reason)
c5121837 5507{
a2e40bb6 5508 struct i802_bss *bss = priv;
c5121837
JM		 5509 struct ieee80211_mgmt mgmt;
5510
5511 memset(&mgmt, 0, sizeof(mgmt));
5512 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
5513 WLAN_FC_STYPE_DISASSOC);
5514 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 5515 memcpy(mgmt.sa, own_addr, ETH_ALEN);
5516 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 5517 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 5518 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 5519 IEEE80211_HDRLEN +
5520 sizeof(mgmt.u.disassoc));
c5121837
JM		 5521}
5522
ee7ab173
JB		 5523#endif /* HOSTAPD || CONFIG_AP */
5524
5525#ifdef HOSTAPD
c5121837 5526
94627f6c 5527static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 5528 struct i802_bss *bss,
94627f6c
JM		 5529 const char *brname, const char *ifname)
5530{
5531 int ifindex;
5532 char in_br[IFNAMSIZ];
5533
e17a2477 5534 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 5535 ifindex = if_nametoindex(brname);
5536 if (ifindex == 0) {
5537 /*
5538 * Bridge was configured, but the bridge device does
5539 * not exist. Try to add it now.
5540 */
5541 if (linux_br_add(drv->ioctl_sock, brname) < 0) {
5542 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
5543 "bridge interface %s: %s",
5544 brname, strerror(errno));
5545 return -1;
5546 }
e17a2477 5547 bss->added_bridge = 1;
94627f6c
JM		 5548 add_ifidx(drv, if_nametoindex(brname));
5549 }
5550
5551 if (linux_br_get(in_br, ifname) == 0) {
5552 if (os_strcmp(in_br, brname) == 0)
5553 return 0; /* already in the bridge */
5554
5555 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
5556 "bridge %s", ifname, in_br);
5557 if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
5558 wpa_printf(MSG_ERROR, "nl80211: Failed to "
5559 "remove interface %s from bridge "
5560 "%s: %s",
5561 ifname, brname, strerror(errno));
5562 return -1;
5563 }
5564 }
5565
5566 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
5567 ifname, brname);
5568 if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
5569 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
5570 "into bridge %s: %s",
5571 ifname, brname, strerror(errno));
5572 return -1;
5573 }
e17a2477 5574 bss->added_if_into_bridge = 1;
94627f6c
JM		 5575
5576 return 0;
5577}
5578
5579
92f475b4
JM		 5580static void *i802_init(struct hostapd_data *hapd,
5581 struct wpa_init_params *params)
c5121837
JM		 5582{
5583 struct wpa_driver_nl80211_data *drv;
a2e40bb6 5584 struct i802_bss *bss;
c5121837 5585 size_t i;
94627f6c
JM		 5586 char brname[IFNAMSIZ];
5587 int ifindex, br_ifindex;
5588 int br_added = 0;
c5121837 5589
f2ed8023 5590 bss = wpa_driver_nl80211_init(hapd, params->ifname, NULL);
a2e40bb6 5591 if (bss == NULL)
c5121837 5592 return NULL;
c5121837 5593
a2e40bb6 5594 drv = bss->drv;
0382097e 5595 drv->nlmode = NL80211_IFTYPE_AP;
94627f6c
JM		 5596 if (linux_br_get(brname, params->ifname) == 0) {
5597 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
5598 params->ifname, brname);
5599 br_ifindex = if_nametoindex(brname);
5600 } else {
5601 brname[0] = '\0';
5602 br_ifindex = 0;
5603 }
5604
c5121837
JM		 5605 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
5606 drv->if_indices = drv->default_if_indices;
92f475b4 5607 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 5608 if (params->bridge[i]) {
5609 ifindex = if_nametoindex(params->bridge[i]);
5610 if (ifindex)
5611 add_ifidx(drv, ifindex);
5612 if (ifindex == br_ifindex)
5613 br_added = 1;
5614 }
c5121837 5615 }
94627f6c
JM		 5616 if (!br_added && br_ifindex &&
5617 (params->num_bridge == 0 || !params->bridge[0]))
5618 add_ifidx(drv, br_ifindex);
c5121837 5619
ad1e68e6
JM		 5620 /* start listening for EAPOL on the default AP interface */
5621 add_ifidx(drv, drv->ifindex);
5622
a2e40bb6 5623 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
6980c191 5624 goto failed;
ad1e68e6 5625
6980c191 5626 if (params->bssid) {
a2e40bb6 5627 if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
2ac9688e 5628 params->bssid))
460456f8
JM		 5629 goto failed;
5630 }
ad1e68e6 5631
a2e40bb6 5632 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_AP)) {
ad1e68e6 5633 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 5634 "into AP mode", bss->ifname);
bbaf0837 5635 goto failed;
ad1e68e6
JM		 5636 }
5637
94627f6c 5638 if (params->num_bridge && params->bridge[0] &&
e17a2477 5639 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 5640 goto failed;
5641
a2e40bb6 5642 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
bbaf0837 5643 goto failed;
ad1e68e6
JM		 5644
5645 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
5646 if (drv->eapol_sock < 0) {
5647 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 5648 goto failed;
ad1e68e6
JM		 5649 }
5650
5651 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
5652 {
5653 printf("Could not register read socket for eapol\n");
c5121837 5654 goto failed;
ad1e68e6
JM		 5655 }
5656
a2e40bb6 5657 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
bbaf0837 5658 goto failed;
c5121837 5659
a2e40bb6 5660 return bss;
c5121837
JM		 5661
5662failed:
460456f8 5663 nl80211_remove_monitor_interface(drv);
23970868
JM		 5664 rfkill_deinit(drv->rfkill);
5665 netlink_deinit(drv->netlink);
c5121837
JM		 5666 if (drv->ioctl_sock >= 0)
5667 close(drv->ioctl_sock);
c5121837
JM		 5668
5669 genl_family_put(drv->nl80211);
5670 nl_cache_free(drv->nl_cache);
a65a9aed 5671 nl80211_handle_destroy(drv->nl_handle);
c5121837 5672 nl_cb_put(drv->nl_cb);
23970868 5673 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
c5121837 5674
bbaf0837
JM		 5675 os_free(drv);
5676 return NULL;
5677}
c5121837 5678
c5121837 5679
bbaf0837
JM		 5680static void i802_deinit(void *priv)
5681{
5682 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 5683}
5684
5685#endif /* HOSTAPD */
5686
5687
22a7c9d7
JM		 5688static enum nl80211_iftype wpa_driver_nl80211_if_type(
5689 enum wpa_driver_if_type type)
5690{
5691 switch (type) {
5692 case WPA_IF_STATION:
9f51b113 5693 return NL80211_IFTYPE_STATION;
75bde05d
JM		 5694 case WPA_IF_P2P_CLIENT:
5695 case WPA_IF_P2P_GROUP:
9f51b113 5696 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 5697 case WPA_IF_AP_VLAN:
5698 return NL80211_IFTYPE_AP_VLAN;
5699 case WPA_IF_AP_BSS:
5700 return NL80211_IFTYPE_AP;
9f51b113
JB		 5701 case WPA_IF_P2P_GO:
5702 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 5703 }
5704 return -1;
5705}
5706
5707
482856c8
JM		 5708#ifdef CONFIG_P2P
5709
f2ed8023
JM		 5710static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
5711{
5712 struct wpa_driver_nl80211_data *drv;
5713 dl_list_for_each(drv, &global->interfaces,
5714 struct wpa_driver_nl80211_data, list) {
5715 if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
5716 return 1;
5717 }
5718 return 0;
5719}
5720
5721
5722static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
5723 u8 *new_addr)
5724{
5725 unsigned int idx;
5726
5727 if (!drv->global)
5728 return -1;
5729
5730 os_memcpy(new_addr, drv->addr, ETH_ALEN);
5731 for (idx = 0; idx < 64; idx++) {
5732 new_addr[0] = drv->addr[0] | 0x02;
5733 new_addr[0] ^= idx << 2;
5734 if (!nl80211_addr_in_use(drv->global, new_addr))
5735 break;
5736 }
5737 if (idx == 64)
5738 return -1;
5739
5740 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
5741 MACSTR, MAC2STR(new_addr));
5742
5743 return 0;
5744}
5745
482856c8
JM		 5746#endif /* CONFIG_P2P */
5747
f2ed8023 5748
7ab68865 5749static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 5750 const char *ifname, const u8 *addr,
f3585c8a 5751 void *bss_ctx, void **drv_priv,
e17a2477
JM		 5752 char *force_ifname, u8 *if_addr,
5753 const char *bridge)
22a7c9d7 5754{
a2e40bb6
FF		 5755 struct i802_bss *bss = priv;
5756 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 5757 int ifidx;
5758#ifdef HOSTAPD
a2e40bb6 5759 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 5760
5761 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 5762 new_bss = os_zalloc(sizeof(*new_bss));
5763 if (new_bss == NULL)
22a7c9d7
JM		 5764 return -1;
5765 }
5766#endif /* HOSTAPD */
5767
f3585c8a
JM		 5768 if (addr)
5769 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 5770 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 5771 wpa_driver_nl80211_if_type(type), addr,
5772 0);
22a7c9d7
JM		 5773 if (ifidx < 0) {
5774#ifdef HOSTAPD
a2e40bb6 5775 os_free(new_bss);
22a7c9d7
JM		 5776#endif /* HOSTAPD */
5777 return -1;
5778 }
5779
f3585c8a 5780 if (!addr &&
c55f774d
JM		 5781 linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0) {
5782 nl80211_remove_iface(drv, ifidx);
f3585c8a 5783 return -1;
c55f774d
JM		 5784 }
5785
5786#ifdef CONFIG_P2P
5787 if (!addr &&
5788 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
5789 type == WPA_IF_P2P_GO)) {
5790 /* Enforce unique P2P Interface Address */
5791 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
5792
5793 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr)
5794 < 0 ||
5795 linux_get_ifhwaddr(drv->ioctl_sock, ifname, new_addr) < 0)
5796 {
5797 nl80211_remove_iface(drv, ifidx);
5798 return -1;
5799 }
5800 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
5801 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
5802 "for P2P group interface");
f2ed8023 5803 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 5804 nl80211_remove_iface(drv, ifidx);
5805 return -1;
5806 }
c55f774d
JM		 5807 if (linux_set_ifhwaddr(drv->ioctl_sock, ifname,
5808 new_addr) < 0) {
5809 nl80211_remove_iface(drv, ifidx);
5810 return -1;
5811 }
5812 os_memcpy(if_addr, new_addr, ETH_ALEN);
5813 }
5814 }
5815#endif /* CONFIG_P2P */
f3585c8a 5816
22a7c9d7 5817#ifdef HOSTAPD
e17a2477
JM		 5818 if (bridge &&
5819 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
5820 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
5821 "interface %s to a bridge %s", ifname, bridge);
5822 nl80211_remove_iface(drv, ifidx);
5823 os_free(new_bss);
5824 return -1;
5825 }
5826
22a7c9d7 5827 if (type == WPA_IF_AP_BSS) {
34f2f814
JM		 5828 if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
5829 nl80211_remove_iface(drv, ifidx);
07179987 5830 os_free(new_bss);
22a7c9d7
JM		 5831 return -1;
5832 }
a2e40bb6
FF		 5833 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
5834 new_bss->ifindex = ifidx;
5835 new_bss->drv = drv;
5836 new_bss->next = drv->first_bss.next;
5837 drv->first_bss.next = new_bss;
5838 if (drv_priv)
5839 *drv_priv = new_bss;
22a7c9d7
JM		 5840 }
5841#endif /* HOSTAPD */
5842
5843 return 0;
5844}
5845
5846
5847static int wpa_driver_nl80211_if_remove(void *priv,
5848 enum wpa_driver_if_type type,
5849 const char *ifname)
5850{
a2e40bb6
FF		 5851 struct i802_bss *bss = priv;
5852 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 5853 int ifindex = if_nametoindex(ifname);
5854
e748062b
JM		 5855 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
5856 __func__, type, ifname, ifindex);
5857 if (ifindex <= 0)
5858 return -1;
e17a2477
JM		 5859
5860#ifdef HOSTAPD
5861 if (bss->added_if_into_bridge) {
5862 if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
5863 < 0)
5864 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
5865 "interface %s from bridge %s: %s",
5866 bss->ifname, bss->brname, strerror(errno));
5867 }
5868 if (bss->added_bridge) {
5869 if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
5870 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
5871 "bridge %s: %s",
5872 bss->brname, strerror(errno));
5873 }
5874#endif /* HOSTAPD */
5875
22a7c9d7
JM		 5876 nl80211_remove_iface(drv, ifindex);
5877
5878#ifdef HOSTAPD
a2e40bb6
FF		 5879 if (type != WPA_IF_AP_BSS)
5880 return 0;
5881
5882 if (bss != &drv->first_bss) {
8546ea19 5883 struct i802_bss *tbss;
a2e40bb6 5884
8546ea19
JM		 5885 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
5886 if (tbss->next == bss) {
5887 tbss->next = bss->next;
5888 os_free(bss);
5889 bss = NULL;
5890 break;
5891 }
22a7c9d7 5892 }
8546ea19
JM		 5893 if (bss)
5894 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
5895 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 5896 }
5897#endif /* HOSTAPD */
5898
5899 return 0;
5900}
5901
5902
55777702
JM		 5903static int cookie_handler(struct nl_msg *msg, void *arg)
5904{
5905 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5906 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5907 u64 *cookie = arg;
5908 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5909 genlmsg_attrlen(gnlh, 0), NULL);
5910 if (tb[NL80211_ATTR_COOKIE])
5911 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
5912 return NL_SKIP;
5913}
5914
5915
9884f9cc 5916static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 5917 unsigned int freq, unsigned int wait,
5918 const u8 *buf, size_t buf_len,
5919 u64 *cookie_out)
9884f9cc
JB		 5920{
5921 struct nl_msg *msg;
5922 u64 cookie;
5923 int ret = -1;
5924
5925 msg = nlmsg_alloc();
5926 if (!msg)
5927 return -1;
5928
5929 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5930 NL80211_CMD_FRAME, 0);
5931
5932 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5933 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5dfca53f
JB		 5934 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
5935 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9884f9cc
JB		 5936 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
5937
5938 cookie = 0;
5939 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5940 msg = NULL;
5941 if (ret) {
5942 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
5943 "(%s)", ret, strerror(-ret));
5944 goto nla_put_failure;
5945 }
5946 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; "
5947 "cookie 0x%llx", (long long unsigned int) cookie);
5948
5949 if (cookie_out)
5950 *cookie_out = cookie;
5951
5952nla_put_failure:
5953 nlmsg_free(msg);
5954 return ret;
5955}
5956
5957
58f6fbe0 5958static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 5959 unsigned int wait_time,
58f6fbe0
JM		 5960 const u8 *dst, const u8 *src,
5961 const u8 *bssid,
5962 const u8 *data, size_t data_len)
5963{
a2e40bb6
FF		 5964 struct i802_bss *bss = priv;
5965 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 5966 int ret = -1;
58f6fbe0
JM		 5967 u8 *buf;
5968 struct ieee80211_hdr *hdr;
58f6fbe0 5969
5dfca53f
JB		 5970 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
5971 "wait=%d ms)", drv->ifindex, wait_time);
58f6fbe0
JM		 5972
5973 buf = os_zalloc(24 + data_len);
5974 if (buf == NULL)
5975 return ret;
5976 os_memcpy(buf + 24, data, data_len);
5977 hdr = (struct ieee80211_hdr *) buf;
5978 hdr->frame_control =
5979 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
5980 os_memcpy(hdr->addr1, dst, ETH_ALEN);
5981 os_memcpy(hdr->addr2, src, ETH_ALEN);
5982 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
5983
9884f9cc 5984 if (drv->nlmode == NL80211_IFTYPE_AP)
58f6fbe0 5985 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
9884f9cc 5986 else
5dfca53f
JB		 5987 ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf,
5988 24 + data_len,
9884f9cc 5989 &drv->send_action_cookie);
58f6fbe0 5990
f8bf1421 5991 os_free(buf);
58f6fbe0
JM		 5992 return ret;
5993}
5994
5995
5dfca53f
JB		 5996static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
5997{
5998 struct i802_bss *bss = priv;
5999 struct wpa_driver_nl80211_data *drv = bss->drv;
6000 struct nl_msg *msg;
6001 int ret;
6002
6003 msg = nlmsg_alloc();
6004 if (!msg)
6005 return;
6006
6007 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6008 NL80211_CMD_FRAME_WAIT_CANCEL, 0);
6009
6010 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6011 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
6012
6013 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6014 msg = NULL;
6015 if (ret)
6016 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
6017 "(%s)", ret, strerror(-ret));
6018
6019 nla_put_failure:
6020 nlmsg_free(msg);
6021}
6022
6023
55777702
JM		 6024static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
6025 unsigned int duration)
6026{
a2e40bb6
FF		 6027 struct i802_bss *bss = priv;
6028 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6029 struct nl_msg *msg;
6030 int ret;
6031 u64 cookie;
6032
6033 msg = nlmsg_alloc();
6034 if (!msg)
6035 return -1;
6036
6037 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6038 NL80211_CMD_REMAIN_ON_CHANNEL, 0);
6039
6040 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6041 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6042 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6043
6044 cookie = 0;
6045 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6046 if (ret == 0) {
6047 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
6048 "0x%llx for freq=%u MHz duration=%u",
6049 (long long unsigned int) cookie, freq, duration);
6050 drv->remain_on_chan_cookie = cookie;
6051 return 0;
6052 }
6053 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 6054 "(freq=%d duration=%u): %d (%s)",
6055 freq, duration, ret, strerror(-ret));
55777702
JM		 6056nla_put_failure:
6057 return -1;
6058}
6059
6060
6061static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
6062{
a2e40bb6
FF		 6063 struct i802_bss *bss = priv;
6064 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6065 struct nl_msg *msg;
6066 int ret;
6067
6068 if (!drv->pending_remain_on_chan) {
6069 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
6070 "to cancel");
6071 return -1;
6072 }
6073
6074 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
6075 "0x%llx",
6076 (long long unsigned int) drv->remain_on_chan_cookie);
6077
6078 msg = nlmsg_alloc();
6079 if (!msg)
6080 return -1;
6081
6082 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6083 NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0);
6084
6085 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6086 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
6087
6088 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6089 if (ret == 0)
6090 return 0;
6091 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
6092 "%d (%s)", ret, strerror(-ret));
6093nla_put_failure:
6094 return -1;
6095}
6096
6097
504e905c
JM		 6098static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
6099{
a2e40bb6
FF		 6100 struct i802_bss *bss = priv;
6101 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c
JM		 6102
6103 if (drv->nlmode != NL80211_IFTYPE_STATION) {
6104 wpa_printf(MSG_DEBUG, "nl80211: probe_req_report control only "
6105 "allowed in station mode (iftype=%d)",
6106 drv->nlmode);
6107 return -1;
6108 }
504e905c 6109
5582a5d1
JB		 6110 if (!report) {
6111 if (drv->nl_handle_preq) {
6112 eloop_unregister_read_sock(
6113 nl_socket_get_fd(drv->nl_handle_preq));
6114 nl_cache_free(drv->nl_cache_preq);
6115 nl80211_handle_destroy(drv->nl_handle_preq);
6116 drv->nl_handle_preq = NULL;
6117 }
6118 return 0;
6119 }
6120
6121 if (drv->nl_handle_preq) {
6122 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
6123 "already on!");
6124 return 0;
6125 }
6126
6127 drv->nl_handle_preq = nl80211_handle_alloc(drv->nl_cb);
6128 if (drv->nl_handle_preq == NULL) {
6129 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate "
6130 "netlink callbacks (preq)");
6131 goto out_err1;
6132 }
6133
6134 if (genl_connect(drv->nl_handle_preq)) {
6135 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to "
6136 "generic netlink (preq)");
6137 goto out_err2;
6138 return -1;
504e905c
JM		 6139 }
6140
5582a5d1
JB		 6141#ifdef CONFIG_LIBNL20
6142 if (genl_ctrl_alloc_cache(drv->nl_handle_preq,
6143 &drv->nl_cache_preq) < 0) {
6144 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
6145 "netlink cache (preq)");
6146 goto out_err2;
6147 }
6148#else /* CONFIG_LIBNL20 */
6149 drv->nl_cache_preq = genl_ctrl_alloc_cache(drv->nl_handle_preq);
6150 if (drv->nl_cache_preq == NULL) {
6151 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
6152 "netlink cache (preq)");
6153 goto out_err2;
6154 }
6155#endif /* CONFIG_LIBNL20 */
6156
6157 if (nl80211_register_frame(drv, drv->nl_handle_preq,
6158 (WLAN_FC_TYPE_MGMT << 2) |
6159 (WLAN_FC_STYPE_PROBE_REQ << 4),
6160 NULL, 0) < 0) {
6161 goto out_err3;
6162 }
6163
6164 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_preq),
6165 wpa_driver_nl80211_event_receive, drv,
6166 drv->nl_handle_preq);
6167
504e905c 6168 return 0;
5582a5d1
JB		 6169
6170 out_err3:
6171 nl_cache_free(drv->nl_cache_preq);
6172 out_err2:
6173 nl80211_handle_destroy(drv->nl_handle_preq);
6174 drv->nl_handle_preq = NULL;
6175 out_err1:
6176 return -1;
504e905c
JM		 6177}
6178
6179
4e5cb1a3
JM		 6180static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
6181 int ifindex, int disabled)
6182{
6183 struct nl_msg *msg;
6184 struct nlattr *bands, *band;
6185 int ret;
6186
6187 msg = nlmsg_alloc();
6188 if (!msg)
6189 return -1;
6190
6191 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6192 NL80211_CMD_SET_TX_BITRATE_MASK, 0);
6193 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6194
6195 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
6196 if (!bands)
6197 goto nla_put_failure;
6198
6199 /*
6200 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
6201 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
6202 * rates. All 5 GHz rates are left enabled.
6203 */
6204 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
6205 if (!band)
6206 goto nla_put_failure;
6207 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
6208 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
6209 nla_nest_end(msg, band);
6210
6211 nla_nest_end(msg, bands);
6212
6213 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6214 msg = NULL;
6215 if (ret) {
6216 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
6217 "(%s)", ret, strerror(-ret));
6218 }
6219
6220 return ret;
6221
6222nla_put_failure:
6223 nlmsg_free(msg);
6224 return -1;
6225}
6226
6227
6228static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
6229{
a2e40bb6
FF		 6230 struct i802_bss *bss = priv;
6231 struct wpa_driver_nl80211_data *drv = bss->drv;
4e5cb1a3
JM		 6232 drv->disable_11b_rates = disabled;
6233 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
6234}
6235
6236
af473088
JM		 6237static int wpa_driver_nl80211_deinit_ap(void *priv)
6238{
a2e40bb6
FF		 6239 struct i802_bss *bss = priv;
6240 struct wpa_driver_nl80211_data *drv = bss->drv;
af473088
JM		 6241 if (drv->nlmode != NL80211_IFTYPE_AP)
6242 return -1;
6243 wpa_driver_nl80211_del_beacon(drv);
a2e40bb6 6244 return wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
af473088
JM		 6245}
6246
6247
207ef3fb
JM		 6248static void wpa_driver_nl80211_resume(void *priv)
6249{
a2e40bb6
FF		 6250 struct i802_bss *bss = priv;
6251 struct wpa_driver_nl80211_data *drv = bss->drv;
6252 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 6253 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
6254 "resume event");
6255 }
6256}
6257
6258
7b90c16a
JM		 6259static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
6260 const u8 *ies, size_t ies_len)
6261{
6262 struct i802_bss *bss = priv;
6263 struct wpa_driver_nl80211_data *drv = bss->drv;
6264 int ret;
6265 u8 *data, *pos;
6266 size_t data_len;
6267 u8 own_addr[ETH_ALEN];
6268
6269 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
6270 return -1;
6271
6272 if (action != 1) {
6273 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
6274 "action %d", action);
6275 return -1;
6276 }
6277
6278 /*
6279 * Action frame payload:
6280 * Category[1] = 6 (Fast BSS Transition)
6281 * Action[1] = 1 (Fast BSS Transition Request)
6282 * STA Address
6283 * Target AP Address
6284 * FT IEs
6285 */
6286
73fc617d
JM		 6287 data_len = 2 + 2 * ETH_ALEN + ies_len;
6288 data = os_malloc(data_len);
7b90c16a
JM		 6289 if (data == NULL)
6290 return -1;
6291 pos = data;
6292 *pos++ = 0x06; /* FT Action category */
6293 *pos++ = action;
6294 os_memcpy(pos, own_addr, ETH_ALEN);
6295 pos += ETH_ALEN;
6296 os_memcpy(pos, target_ap, ETH_ALEN);
6297 pos += ETH_ALEN;
6298 os_memcpy(pos, ies, ies_len);
6299
190b9062
JB		 6300 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
6301 drv->bssid, own_addr, drv->bssid,
7b90c16a
JM		 6302 data, data_len);
6303 os_free(data);
6304
6305 return ret;
6306}
6307
6308
b625473c
JM		 6309static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
6310{
6311 struct i802_bss *bss = priv;
6312 struct wpa_driver_nl80211_data *drv = bss->drv;
6313 struct nl_msg *msg, *cqm = NULL;
6314
6315 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
6316 "hysteresis=%d", threshold, hysteresis);
6317
6318 msg = nlmsg_alloc();
6319 if (!msg)
6320 return -1;
6321
6322 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
6323 0, NL80211_CMD_SET_CQM, 0);
6324
6325 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
6326
6327 cqm = nlmsg_alloc();
6328 if (cqm == NULL)
6329 return -1;
6330
6331 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
6332 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
6333 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
6334
6335 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6336 return 0;
6337 msg = NULL;
6338
6339nla_put_failure:
6340 if (cqm)
6341 nlmsg_free(cqm);
6342 nlmsg_free(msg);
6343 return -1;
6344}
6345
6346
b91ab76e
JM		 6347static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
6348 int encrypt)
6349{
6350 struct i802_bss *bss = priv;
6351 struct wpa_driver_nl80211_data *drv = bss->drv;
6352 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
6353}
6354
6355
6ee04cfc
JB		 6356static int nl80211_set_intra_bss(void *priv, int enabled)
6357{
6358 struct i802_bss *bss = priv;
6359 struct wpa_driver_nl80211_data *drv = bss->drv;
6360 struct nl_msg *msg;
6361
6362 msg = nlmsg_alloc();
6363 if (!msg)
6364 return -ENOMEM;
6365
6366 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6367 NL80211_CMD_SET_BSS, 0);
6368
6369 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6370 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, !enabled);
6371
6372 return send_and_recv_msgs(drv, msg, NULL, NULL);
6373 nla_put_failure:
6374 return -ENOBUFS;
6375}
6376
6377
c55f774d
JM		 6378static int nl80211_set_param(void *priv, const char *param)
6379{
c55f774d
JM		 6380 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
6381 if (param == NULL)
6382 return 0;
6383
6384#ifdef CONFIG_P2P
6385 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 6386 struct i802_bss *bss = priv;
6387 struct wpa_driver_nl80211_data *drv = bss->drv;
6388
c55f774d
JM		 6389 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
6390 "interface");
6391 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
6392 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
6393 }
6394#endif /* CONFIG_P2P */
6395
6396 return 0;
6397}
6398
6399
f2ed8023
JM		 6400static void * nl80211_global_init(void)
6401{
6402 struct nl80211_global *global;
6403 global = os_zalloc(sizeof(*global));
6404 if (global == NULL)
6405 return NULL;
6406 dl_list_init(&global->interfaces);
6407 return global;
6408}
6409
6410
6411static void nl80211_global_deinit(void *priv)
6412{
6413 struct nl80211_global *global = priv;
6414 if (global == NULL)
6415 return;
6416 if (!dl_list_empty(&global->interfaces)) {
6417 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
6418 "nl80211_global_deinit",
6419 dl_list_len(&global->interfaces));
6420 }
6421 os_free(global);
6422}
6423
6424
6859f1cb
BG		 6425static const char * nl80211_get_radio_name(void *priv)
6426{
6427 struct i802_bss *bss = priv;
6428 struct wpa_driver_nl80211_data *drv = bss->drv;
6429 return drv->phyname;
6430}
6431
6432
3f5285e8
JM		 6433const struct wpa_driver_ops wpa_driver_nl80211_ops = {
6434 .name = "nl80211",
6435 .desc = "Linux nl80211/cfg80211",
6436 .get_bssid = wpa_driver_nl80211_get_bssid,
6437 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 6438 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 6439 .scan2 = wpa_driver_nl80211_scan,
3f5285e8
JM		 6440 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
6441 .deauthenticate = wpa_driver_nl80211_deauthenticate,
6442 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 6443 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 6444 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 6445 .global_init = nl80211_global_init,
6446 .global_deinit = nl80211_global_deinit,
6447 .init2 = wpa_driver_nl80211_init,
3f5285e8 6448 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 6449 .get_capa = wpa_driver_nl80211_get_capa,
6450 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 6451 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 6452 .set_country = wpa_driver_nl80211_set_country,
d2440ba0 6453 .set_beacon = wpa_driver_nl80211_set_beacon,
22a7c9d7
JM		 6454 .if_add = wpa_driver_nl80211_if_add,
6455 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 6456 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 6457 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 6458 .sta_add = wpa_driver_nl80211_sta_add,
6459 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 6460 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 6461 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 6462#ifdef HOSTAPD
6463 .hapd_init = i802_init,
c5121837 6464 .hapd_deinit = i802_deinit,
c5121837
JM		 6465 .get_seqnum = i802_get_seqnum,
6466 .flush = i802_flush,
6467 .read_sta_data = i802_read_sta_data,
c5121837
JM		 6468 .get_inact_sec = i802_get_inact_sec,
6469 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 6470 .set_rts = i802_set_rts,
6471 .set_frag = i802_set_frag,
c5121837 6472 .set_rate_sets = i802_set_rate_sets,
c5121837
JM		 6473 .set_cts_protect = i802_set_cts_protect,
6474 .set_preamble = i802_set_preamble,
6475 .set_short_slot_time = i802_set_short_slot_time,
6476 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 6477 .set_sta_vlan = i802_set_sta_vlan,
fbbfcbac 6478 .set_wds_sta = i802_set_wds_sta,
f1bed4a7 6479 .set_ht_params = i802_set_ht_params,
c5121837 6480#endif /* HOSTAPD */
ee7ab173
JB		 6481#if defined(HOSTAPD) || defined(CONFIG_AP)
6482 .sta_deauth = i802_sta_deauth,
6483 .sta_disassoc = i802_sta_disassoc,
6484#endif /* HOSTAPD || CONFIG_AP */
e3802622 6485 .set_freq = i802_set_freq,
58f6fbe0 6486 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 6487 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 6488 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
6489 .cancel_remain_on_channel =
6490 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 6491 .probe_req_report = wpa_driver_nl80211_probe_req_report,
4e5cb1a3 6492 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
af473088 6493 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 6494 .resume = wpa_driver_nl80211_resume,
7b90c16a 6495 .send_ft_action = nl80211_send_ft_action,
b625473c 6496 .signal_monitor = nl80211_signal_monitor,
b91ab76e 6497 .send_frame = nl80211_send_frame,
6ee04cfc 6498 .set_intra_bss = nl80211_set_intra_bss,
c55f774d 6499 .set_param = nl80211_set_param,
6859f1cb 6500 .get_radio_name = nl80211_get_radio_name,
3f5285e8 6501};
Unnamed repository; edit this file 'description' to name the repository.