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AP: Make sure ieee80211n_allowed_ht40_channel_pair() gets called
[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];
c5121837
JM		 115 unsigned int beacon_set:1;
116};
3f5285e8
JM		 117
118struct wpa_driver_nl80211_data {
f2ed8023
JM		 119 struct nl80211_global *global;
120 struct dl_list list;
121 u8 addr[ETH_ALEN];
6859f1cb 122 char phyname[32];
3f5285e8 123 void *ctx;
08063178 124 struct netlink_data *netlink;
c5121837 125 int ioctl_sock; /* socket for ioctl() use */
94627f6c 126 char brname[IFNAMSIZ];
3f5285e8 127 int ifindex;
7524cfb1 128 int if_removed;
a63063b4 129 int if_disabled;
8401a6b0 130 struct rfkill_data *rfkill;
c2a04078
JM		 131 struct wpa_driver_capa capa;
132 int has_capability;
c2a04078 133
3f5285e8
JM		 134 int operstate;
135
3f5285e8
JM		 136 int scan_complete_events;
137
138 struct nl_handle *nl_handle;
335ce76b 139 struct nl_handle *nl_handle_event;
5582a5d1 140 struct nl_handle *nl_handle_preq;
3f5285e8 141 struct nl_cache *nl_cache;
335ce76b 142 struct nl_cache *nl_cache_event;
5582a5d1 143 struct nl_cache *nl_cache_preq;
3f5285e8
JM		 144 struct nl_cb *nl_cb;
145 struct genl_family *nl80211;
1c873584 146
e6b8efeb 147 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 148 u8 bssid[ETH_ALEN];
149 int associated;
fd05d64e
JM		 150 u8 ssid[32];
151 size_t ssid_len;
ad1e68e6
JM		 152 int nlmode;
153 int ap_scan_as_station;
4832ecd7 154 unsigned int assoc_freq;
d2440ba0 155
0915d02c
JM		 156 int monitor_sock;
157 int monitor_ifidx;
4e5cb1a3 158 int disable_11b_rates;
7da3abe7 159
55777702 160 unsigned int pending_remain_on_chan:1;
94627f6c
JM		 161 unsigned int added_bridge:1;
162 unsigned int added_if_into_bridge:1;
55777702
JM		 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;
80bc75f1
JM		 1479};
1480
1481
1482static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1483{
1484 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1485 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1486 struct wiphy_info_data *info = arg;
9f51b113 1487 int p2p_go_supported = 0, p2p_client_supported = 0;
80bc75f1
JM		 1488
1489 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1490 genlmsg_attrlen(gnlh, 0), NULL);
1491
1492 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1493 info->max_scan_ssids =
1494 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1495
1581b38b
JM		 1496 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1497 struct nlattr *nl_mode;
1498 int i;
1499 nla_for_each_nested(nl_mode,
1500 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
9f51b113
JB		 1501 switch (nl_mode->nla_type) {
1502 case NL80211_IFTYPE_AP:
1581b38b
JM		 1503 info->ap_supported = 1;
1504 break;
9f51b113
JB		 1505 case NL80211_IFTYPE_P2P_GO:
1506 p2p_go_supported = 1;
1507 break;
1508 case NL80211_IFTYPE_P2P_CLIENT:
1509 p2p_client_supported = 1;
1510 break;
1581b38b
JM		 1511 }
1512 }
1513 }
1514
9f51b113
JB		 1515 info->p2p_supported = p2p_go_supported && p2p_client_supported;
1516
93d11400
ZY		 1517 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1518 struct nlattr *nl_cmd;
1519 int i;
1520
1521 nla_for_each_nested(nl_cmd,
1522 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1523 u32 cmd = nla_get_u32(nl_cmd);
1524 if (cmd == NL80211_CMD_AUTHENTICATE)
1525 info->auth_supported = 1;
1526 else if (cmd == NL80211_CMD_CONNECT)
1527 info->connect_supported = 1;
1528 }
1529 }
1530
5dfca53f
JB		 1531 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK])
1532 info->offchan_tx_supported = 1;
1533
80bc75f1
JM		 1534 return NL_SKIP;
1535}
1536
1537
1538static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1539 struct wiphy_info_data *info)
1540{
1541 struct nl_msg *msg;
1542
1543 os_memset(info, 0, sizeof(*info));
1544 msg = nlmsg_alloc();
1545 if (!msg)
1546 return -1;
1547
1548 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1549 0, NL80211_CMD_GET_WIPHY, 0);
1550
a2e40bb6 1551 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 1552
1553 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1554 return 0;
1555 msg = NULL;
1556nla_put_failure:
1557 nlmsg_free(msg);
1558 return -1;
1559}
1560
1561
93d11400 1562static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1563{
1564 struct wiphy_info_data info;
1565 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1566 return -1;
80bc75f1 1567 drv->has_capability = 1;
1b2a72e8
JM		 1568 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1569 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1570 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1571 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1572 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1573 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1574 WPA_DRIVER_CAPA_ENC_WEP104 |
1575 WPA_DRIVER_CAPA_ENC_TKIP |
1576 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 1577 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1578 WPA_DRIVER_AUTH_SHARED |
1579 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 1580
80bc75f1 1581 drv->capa.max_scan_ssids = info.max_scan_ssids;
1581b38b
JM		 1582 if (info.ap_supported)
1583 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
93d11400
ZY		 1584
1585 if (info.auth_supported)
1586 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1587 else if (!info.connect_supported) {
1588 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1589 "authentication/association or connect commands");
1590 return -1;
1591 }
1592
5dfca53f
JB		 1593 if (info.offchan_tx_supported) {
1594 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
1595 "off-channel TX");
1596 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
1597 }
1598
871f4dd0 1599 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 1600 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
9f51b113
JB		 1601 if (info.p2p_supported)
1602 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
814782b9 1603 drv->capa.max_remain_on_chan = 5000;
0194fedb 1604
93d11400 1605 return 0;
80bc75f1 1606}
bbaf0837 1607#endif /* HOSTAPD */
80bc75f1
JM		 1608
1609
ba2d0d7d 1610static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3f5285e8 1611{
9fff9fdc 1612 int ret;
3f5285e8 1613
9fff9fdc 1614 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1615
1616 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1617 if (drv->nl_cb == NULL) {
1618 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1619 "callbacks");
1620 goto err1;
1621 }
1622
a65a9aed 1623 drv->nl_handle = nl80211_handle_alloc(drv->nl_cb);
3f5285e8
JM		 1624 if (drv->nl_handle == NULL) {
1625 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1626 "callbacks");
1627 goto err2;
1628 }
1629
a65a9aed 1630 drv->nl_handle_event = nl80211_handle_alloc(drv->nl_cb);
335ce76b
JM		 1631 if (drv->nl_handle_event == NULL) {
1632 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1633 "callbacks (event)");
1634 goto err2b;
1635 }
1636
3f5285e8
JM		 1637 if (genl_connect(drv->nl_handle)) {
1638 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1639 "netlink");
1640 goto err3;
1641 }
1642
335ce76b
JM		 1643 if (genl_connect(drv->nl_handle_event)) {
1644 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1645 "netlink (event)");
1646 goto err3;
1647 }
1648
9fff9fdc
JM		 1649#ifdef CONFIG_LIBNL20
1650 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1651 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1652 "netlink cache");
1653 goto err3;
1654 }
335ce76b
JM		 1655 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1656 0) {
1657 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1658 "netlink cache (event)");
1659 goto err3b;
1660 }
9fff9fdc 1661#else /* CONFIG_LIBNL20 */
3f5285e8
JM		 1662 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1663 if (drv->nl_cache == NULL) {
1664 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1665 "netlink cache");
1666 goto err3;
1667 }
335ce76b
JM		 1668 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1669 if (drv->nl_cache_event == NULL) {
1670 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1671 "netlink cache (event)");
1672 goto err3b;
1673 }
9fff9fdc
JM		 1674#endif /* CONFIG_LIBNL20 */
1675
3f5285e8
JM		 1676 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1677 if (drv->nl80211 == NULL) {
1678 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1679 "found");
1680 goto err4;
1681 }
1682
97865538
JM		 1683 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1684 if (ret >= 0)
335ce76b 1685 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 1686 if (ret < 0) {
1687 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1688 "membership for scan events: %d (%s)",
1689 ret, strerror(-ret));
1690 goto err4;
1691 }
c2a04078
JM		 1692
1693 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1694 if (ret >= 0)
335ce76b 1695 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 1696 if (ret < 0) {
1697 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1698 "membership for mlme events: %d (%s)",
1699 ret, strerror(-ret));
1700 goto err4;
1701 }
c2a04078 1702
33c5deb8
JM		 1703 ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
1704 if (ret >= 0)
1705 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1706 if (ret < 0) {
1707 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1708 "membership for regulatory events: %d (%s)",
1709 ret, strerror(-ret));
1710 /* Continue without regulatory events */
1711 }
1712
335ce76b 1713 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
5582a5d1
JB		 1714 wpa_driver_nl80211_event_receive, drv,
1715 drv->nl_handle_event);
97865538 1716
9fff9fdc
JM		 1717 return 0;
1718
1719err4:
335ce76b
JM		 1720 nl_cache_free(drv->nl_cache_event);
1721err3b:
9fff9fdc
JM		 1722 nl_cache_free(drv->nl_cache);
1723err3:
a65a9aed 1724 nl80211_handle_destroy(drv->nl_handle_event);
335ce76b 1725err2b:
a65a9aed 1726 nl80211_handle_destroy(drv->nl_handle);
9fff9fdc
JM		 1727err2:
1728 nl_cb_put(drv->nl_cb);
1729err1:
1730 return -1;
1731}
1732
1733
8401a6b0
JM		 1734static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
1735{
8401a6b0 1736 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 1737 /*
1738 * This may be for any interface; use ifdown event to disable
1739 * interface.
1740 */
8401a6b0
JM		 1741}
1742
1743
1744static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
1745{
1746 struct wpa_driver_nl80211_data *drv = ctx;
1747 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
1748 if (linux_set_iface_flags(drv->ioctl_sock, drv->first_bss.ifname, 1)) {
1749 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
1750 "after rfkill unblock");
1751 return;
1752 }
a63063b4 1753 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 1754}
1755
1756
6859f1cb
BG		 1757static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
1758{
1759 /* Find phy (radio) to which this interface belongs */
1760 char buf[90], *pos;
1761 int f, rv;
1762
1763 drv->phyname[0] = '\0';
1764 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
1765 drv->first_bss.ifname);
1766 f = open(buf, O_RDONLY);
1767 if (f < 0) {
1768 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
1769 buf, strerror(errno));
1770 return;
1771 }
1772
1773 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
1774 close(f);
1775 if (rv < 0) {
1776 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
1777 buf, strerror(errno));
1778 return;
1779 }
1780
1781 drv->phyname[rv] = '\0';
1782 pos = os_strchr(drv->phyname, '\n');
1783 if (pos)
1784 *pos = '\0';
1785 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
1786 drv->first_bss.ifname, drv->phyname);
1787}
1788
1789
9fff9fdc
JM		 1790/**
1791 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1792 * @ctx: context to be used when calling wpa_supplicant functions,
1793 * e.g., wpa_supplicant_event()
1794 * @ifname: interface name, e.g., wlan0
f2ed8023 1795 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 1796 * Returns: Pointer to private data, %NULL on failure
1797 */
f2ed8023
JM		 1798static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
1799 void *global_priv)
9fff9fdc 1800{
9fff9fdc 1801 struct wpa_driver_nl80211_data *drv;
08063178 1802 struct netlink_config *cfg;
8401a6b0 1803 struct rfkill_config *rcfg;
a2e40bb6 1804 struct i802_bss *bss;
9fff9fdc
JM		 1805
1806 drv = os_zalloc(sizeof(*drv));
1807 if (drv == NULL)
1808 return NULL;
f2ed8023
JM		 1809 drv->global = global_priv;
1810 if (drv->global)
1811 dl_list_add(&drv->global->interfaces, &drv->list);
9fff9fdc 1812 drv->ctx = ctx;
a2e40bb6
FF		 1813 bss = &drv->first_bss;
1814 bss->drv = drv;
1815 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 1816 drv->monitor_ifidx = -1;
1817 drv->monitor_sock = -1;
bbaf0837 1818 drv->ioctl_sock = -1;
9fff9fdc 1819
ba2d0d7d 1820 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 1821 os_free(drv);
1822 return NULL;
1823 }
9fff9fdc 1824
6859f1cb
BG		 1825 nl80211_get_phy_name(drv);
1826
3f5285e8
JM		 1827 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1828 if (drv->ioctl_sock < 0) {
1829 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 1830 goto failed;
3f5285e8
JM		 1831 }
1832
08063178
JM		 1833 cfg = os_zalloc(sizeof(*cfg));
1834 if (cfg == NULL)
1835 goto failed;
1836 cfg->ctx = drv;
1837 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
1838 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
1839 drv->netlink = netlink_init(cfg);
1840 if (drv->netlink == NULL) {
1841 os_free(cfg);
1842 goto failed;
1843 }
8401a6b0
JM		 1844
1845 rcfg = os_zalloc(sizeof(*rcfg));
1846 if (rcfg == NULL)
1847 goto failed;
1848 rcfg->ctx = drv;
1849 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
1850 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
1851 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
1852 drv->rfkill = rfkill_init(rcfg);
52169389 1853 if (drv->rfkill == NULL) {
8401a6b0 1854 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 1855 os_free(rcfg);
1856 }
8401a6b0 1857
08063178 1858 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 1859 goto failed;
7524cfb1 1860
a2e40bb6 1861 return bss;
7524cfb1 1862
bbaf0837 1863failed:
8401a6b0 1864 rfkill_deinit(drv->rfkill);
08063178 1865 netlink_deinit(drv->netlink);
bbaf0837
JM		 1866 if (drv->ioctl_sock >= 0)
1867 close(drv->ioctl_sock);
1868
7524cfb1 1869 genl_family_put(drv->nl80211);
7524cfb1 1870 nl_cache_free(drv->nl_cache);
a65a9aed 1871 nl80211_handle_destroy(drv->nl_handle);
7524cfb1 1872 nl_cb_put(drv->nl_cb);
05ba8690 1873 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
bbaf0837 1874
7524cfb1
JM		 1875 os_free(drv);
1876 return NULL;
1877}
1878
1879
bd94971e 1880static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
5582a5d1 1881 struct nl_handle *nl_handle,
bd94971e 1882 u16 type, const u8 *match, size_t match_len)
58f6fbe0
JM		 1883{
1884 struct nl_msg *msg;
1885 int ret = -1;
1886
1887 msg = nlmsg_alloc();
1888 if (!msg)
1889 return -1;
1890
1891 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1892 NL80211_CMD_REGISTER_ACTION, 0);
1893
1894 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
bd94971e 1895 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 1896 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
1897
5582a5d1 1898 ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 1899 msg = NULL;
1900 if (ret) {
5582a5d1
JB		 1901 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
1902 "failed (type=%u): ret=%d (%s)",
1903 type, ret, strerror(-ret));
1904 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 1905 match, match_len);
1906 goto nla_put_failure;
1907 }
1908 ret = 0;
1909nla_put_failure:
1910 nlmsg_free(msg);
1911 return ret;
1912}
1913
1914
bd94971e
JB		 1915static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
1916 const u8 *match, size_t match_len)
1917{
1918 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
5582a5d1
JB		 1919 return nl80211_register_frame(drv, drv->nl_handle_event,
1920 type, match, match_len);
bd94971e
JB		 1921}
1922
1923
58f6fbe0
JM		 1924static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
1925{
046b26a2
JM		 1926#ifdef CONFIG_P2P
1927 /* GAS Initial Request */
1928 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
1929 return -1;
1930 /* GAS Initial Response */
1931 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
1932 return -1;
18708aad
JM		 1933 /* GAS Comeback Request */
1934 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
1935 return -1;
1936 /* GAS Comeback Response */
1937 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
1938 return -1;
046b26a2
JM		 1939 /* P2P Public Action */
1940 if (nl80211_register_action_frame(drv,
1941 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
1942 6) < 0)
1943 return -1;
1944 /* P2P Action */
1945 if (nl80211_register_action_frame(drv,
1946 (u8 *) "\x7f\x50\x6f\x9a\x09",
1947 5) < 0)
1948 return -1;
1949#endif /* CONFIG_P2P */
7d878ca7
JM		 1950#ifdef CONFIG_IEEE80211W
1951 /* SA Query Response */
1952 if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
1953 return -1;
1954#endif /* CONFIG_IEEE80211W */
046b26a2 1955
7b90c16a
JM		 1956 /* FT Action frames */
1957 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
1958 return -1;
1959 else
1960 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
1961 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
1962
58f6fbe0
JM		 1963 return 0;
1964}
1965
1966
8401a6b0
JM		 1967static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
1968{
1969 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
1970}
1971
1972
362f781e 1973static int
7524cfb1
JM		 1974wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1975{
a2e40bb6 1976 struct i802_bss *bss = &drv->first_bss;
8401a6b0 1977 int send_rfkill_event = 0;
a2e40bb6
FF		 1978
1979 drv->ifindex = if_nametoindex(bss->ifname);
1980 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 1981
bbaf0837 1982#ifndef HOSTAPD
a2e40bb6 1983 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA) < 0) {
a87c9d96
JM		 1984 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1985 "use managed mode");
1986 }
1987
a2e40bb6 1988 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 1989 if (rfkill_is_blocked(drv->rfkill)) {
1990 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
1991 "interface '%s' due to rfkill",
1992 bss->ifname);
a63063b4 1993 drv->if_disabled = 1;
8401a6b0
JM		 1994 send_rfkill_event = 1;
1995 } else {
1996 wpa_printf(MSG_ERROR, "nl80211: Could not set "
1997 "interface '%s' UP", bss->ifname);
1998 return -1;
1999 }
362f781e 2000 }
3f5285e8 2001
93d11400
ZY		 2002 if (wpa_driver_nl80211_capa(drv))
2003 return -1;
80bc75f1 2004
08063178 2005 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 2006 1, IF_OPER_DORMANT);
bbaf0837 2007#endif /* HOSTAPD */
362f781e 2008
2136f480
MH		 2009 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr))
2010 return -1;
f2ed8023 2011
7b90c16a
JM		 2012 if (nl80211_register_action_frames(drv) < 0) {
2013 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
2014 "frame processing - ignore for now");
2015 /*
2016 * Older kernel versions did not support this, so ignore the
2017 * error for now. Some functionality may not be available
2018 * because of this.
2019 */
2020 }
58f6fbe0 2021
8401a6b0
JM		 2022 if (send_rfkill_event) {
2023 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2024 drv, drv->ctx);
2025 }
2026
362f781e 2027 return 0;
3f5285e8
JM		 2028}
2029
2030
8a27af5c
JM		 2031static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2032{
2033 struct nl_msg *msg;
2034
2035 msg = nlmsg_alloc();
2036 if (!msg)
2037 return -ENOMEM;
2038
2039 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2040 0, NL80211_CMD_DEL_BEACON, 0);
2041 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2042
2043 return send_and_recv_msgs(drv, msg, NULL, NULL);
2044 nla_put_failure:
2045 return -ENOBUFS;
2046}
8a27af5c
JM		 2047
2048
3f5285e8 2049/**
7e5ba1b9
JM		 2050 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2051 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 2052 *
2053 * Shut down driver interface and processing of driver events. Free
2054 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2055 */
7e5ba1b9 2056static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 2057{
a2e40bb6
FF		 2058 struct i802_bss *bss = priv;
2059 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2060
5582a5d1
JB		 2061 if (drv->nl_handle_preq)
2062 wpa_driver_nl80211_probe_req_report(bss, 0);
94627f6c 2063 if (drv->added_if_into_bridge) {
a2e40bb6 2064 if (linux_br_del_if(drv->ioctl_sock, drv->brname, bss->ifname)
94627f6c
JM		 2065 < 0)
2066 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2067 "interface %s from bridge %s: %s",
a2e40bb6 2068 bss->ifname, drv->brname, strerror(errno));
94627f6c
JM		 2069 }
2070 if (drv->added_bridge) {
2071 if (linux_br_del(drv->ioctl_sock, drv->brname) < 0)
2072 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2073 "bridge %s: %s",
2074 drv->brname, strerror(errno));
2075 }
2076
460456f8 2077 nl80211_remove_monitor_interface(drv);
8a27af5c
JM		 2078
2079 if (drv->nlmode == NL80211_IFTYPE_AP)
2080 wpa_driver_nl80211_del_beacon(drv);
0915d02c 2081
bbaf0837
JM		 2082#ifdef HOSTAPD
2083 if (drv->last_freq_ht) {
2084 /* Clear HT flags from the driver */
2085 struct hostapd_freq_params freq;
2086 os_memset(&freq, 0, sizeof(freq));
2087 freq.freq = drv->last_freq;
2088 i802_set_freq(priv, &freq);
2089 }
2090
bbaf0837
JM		 2091 if (drv->eapol_sock >= 0) {
2092 eloop_unregister_read_sock(drv->eapol_sock);
2093 close(drv->eapol_sock);
2094 }
2095
2096 if (drv->if_indices != drv->default_if_indices)
2097 os_free(drv->if_indices);
1b648c7e 2098#endif /* HOSTAPD */
3f5285e8 2099
4e5cb1a3
JM		 2100 if (drv->disable_11b_rates)
2101 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2102
08063178
JM		 2103 netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
2104 netlink_deinit(drv->netlink);
8401a6b0 2105 rfkill_deinit(drv->rfkill);
3f5285e8 2106
bbaf0837
JM		 2107 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2108
a2e40bb6
FF		 2109 (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
2110 wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA);
3f5285e8 2111
bbaf0837
JM		 2112 if (drv->ioctl_sock >= 0)
2113 close(drv->ioctl_sock);
3f5285e8 2114
335ce76b 2115 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 2116 genl_family_put(drv->nl80211);
2117 nl_cache_free(drv->nl_cache);
335ce76b 2118 nl_cache_free(drv->nl_cache_event);
a65a9aed
JB		 2119 nl80211_handle_destroy(drv->nl_handle);
2120 nl80211_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 2121 nl_cb_put(drv->nl_cb);
2122
3812464c
JM		 2123 os_free(drv->filter_ssids);
2124
f2ed8023
JM		 2125 if (drv->global)
2126 dl_list_del(&drv->list);
2127
3f5285e8
JM		 2128 os_free(drv);
2129}
2130
2131
2132/**
2133 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 2134 * @eloop_ctx: Driver private data
3f5285e8
JM		 2135 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
2136 *
2137 * This function can be used as registered timeout when starting a scan to
2138 * generate a scan completed event if the driver does not report this.
2139 */
2140static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2141{
ad1e68e6
JM		 2142 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2143 if (drv->ap_scan_as_station) {
a2e40bb6
FF		 2144 wpa_driver_nl80211_set_mode(&drv->first_bss,
2145 IEEE80211_MODE_AP);
ad1e68e6
JM		 2146 drv->ap_scan_as_station = 0;
2147 }
3f5285e8
JM		 2148 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
2149 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
2150}
2151
2152
2153/**
2154 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 2155 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 2156 * @params: Scan parameters
3f5285e8
JM		 2157 * Returns: 0 on success, -1 on failure
2158 */
6a1063e0
JM		 2159static int wpa_driver_nl80211_scan(void *priv,
2160 struct wpa_driver_scan_params *params)
3f5285e8 2161{
a2e40bb6
FF		 2162 struct i802_bss *bss = priv;
2163 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2164 int ret = 0, timeout;
d3a98225 2165 struct nl_msg *msg, *ssids, *freqs;
6a1063e0 2166 size_t i;
3f5285e8 2167
0e75527f
JM		 2168 msg = nlmsg_alloc();
2169 ssids = nlmsg_alloc();
d3a98225
JM		 2170 freqs = nlmsg_alloc();
2171 if (!msg || !ssids || !freqs) {
0e75527f
JM		 2172 nlmsg_free(msg);
2173 nlmsg_free(ssids);
d3a98225 2174 nlmsg_free(freqs);
3f5285e8
JM		 2175 return -1;
2176 }
2177
3812464c
JM		 2178 os_free(drv->filter_ssids);
2179 drv->filter_ssids = params->filter_ssids;
2180 params->filter_ssids = NULL;
2181 drv->num_filter_ssids = params->num_filter_ssids;
2182
0e75527f
JM		 2183 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2184 NL80211_CMD_TRIGGER_SCAN, 0);
2185
2186 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2187
6a1063e0 2188 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 2189 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
2190 params->ssids[i].ssid,
2191 params->ssids[i].ssid_len);
6a1063e0
JM		 2192 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2193 params->ssids[i].ssid);
3f5285e8 2194 }
6a1063e0
JM		 2195 if (params->num_ssids)
2196 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 2197
d173df52 2198 if (params->extra_ies) {
9fad706c
JM		 2199 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
2200 params->extra_ies, params->extra_ies_len);
d173df52
JM		 2201 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2202 params->extra_ies);
2203 }
2204
d3a98225 2205 if (params->freqs) {
9fad706c
JM		 2206 for (i = 0; params->freqs[i]; i++) {
2207 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2208 "MHz", params->freqs[i]);
d3a98225 2209 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 2210 }
d3a98225
JM		 2211 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2212 }
2213
0e75527f
JM		 2214 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2215 msg = NULL;
2216 if (ret) {
2217 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
2218 "(%s)", ret, strerror(-ret));
ad1e68e6
JM		 2219#ifdef HOSTAPD
2220 if (drv->nlmode == NL80211_IFTYPE_AP) {
2221 /*
2222 * mac80211 does not allow scan requests in AP mode, so
2223 * try to do this in station mode.
2224 */
a2e40bb6 2225 if (wpa_driver_nl80211_set_mode(bss,
ad1e68e6
JM		 2226 IEEE80211_MODE_INFRA))
2227 goto nla_put_failure;
2228
2229 if (wpa_driver_nl80211_scan(drv, params)) {
a2e40bb6 2230 wpa_driver_nl80211_set_mode(bss,
ad1e68e6
JM		 2231 IEEE80211_MODE_AP);
2232 goto nla_put_failure;
2233 }
2234
2235 /* Restore AP mode when processing scan results */
2236 drv->ap_scan_as_station = 1;
2237 ret = 0;
2238 } else
2239 goto nla_put_failure;
2240#else /* HOSTAPD */
0e75527f 2241 goto nla_put_failure;
ad1e68e6 2242#endif /* HOSTAPD */
3f5285e8
JM		 2243 }
2244
2245 /* Not all drivers generate "scan completed" wireless event, so try to
2246 * read results after a timeout. */
0e75527f 2247 timeout = 10;
3f5285e8
JM		 2248 if (drv->scan_complete_events) {
2249 /*
d173df52
JM		 2250 * The driver seems to deliver events to notify when scan is
2251 * complete, so use longer timeout to avoid race conditions
2252 * with scanning and following association request.
3f5285e8
JM		 2253 */
2254 timeout = 30;
2255 }
2256 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
2257 "seconds", ret, timeout);
2258 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 2259 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
2260 drv, drv->ctx);
3f5285e8 2261
0e75527f
JM		 2262nla_put_failure:
2263 nlmsg_free(ssids);
2264 nlmsg_free(msg);
d3a98225 2265 nlmsg_free(freqs);
3f5285e8
JM		 2266 return ret;
2267}
2268
2269
3812464c
JM		 2270static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
2271{
2272 const u8 *end, *pos;
2273
2274 if (ies == NULL)
2275 return NULL;
2276
2277 pos = ies;
2278 end = ies + ies_len;
2279
2280 while (pos + 1 < end) {
2281 if (pos + 2 + pos[1] > end)
2282 break;
2283 if (pos[0] == ie)
2284 return pos;
2285 pos += 2 + pos[1];
2286 }
2287
2288 return NULL;
2289}
2290
2291
2292static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
2293 const u8 *ie, size_t ie_len)
2294{
2295 const u8 *ssid;
2296 size_t i;
2297
2298 if (drv->filter_ssids == NULL)
2299 return 0;
2300
2301 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
2302 if (ssid == NULL)
2303 return 1;
2304
2305 for (i = 0; i < drv->num_filter_ssids; i++) {
2306 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
2307 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
2308 0)
2309 return 0;
2310 }
2311
2312 return 1;
2313}
2314
2315
2316struct nl80211_bss_info_arg {
2317 struct wpa_driver_nl80211_data *drv;
2318 struct wpa_scan_results *res;
2319};
2320
b3db1e1c 2321static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 2322{
b3db1e1c
JM		 2323 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2324 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2325 struct nlattr *bss[NL80211_BSS_MAX + 1];
2326 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
2327 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
2328 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
2329 [NL80211_BSS_TSF] = { .type = NLA_U64 },
2330 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
2331 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
2332 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
2333 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
2334 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 2335 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 2336 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 2337 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 2338 };
3812464c
JM		 2339 struct nl80211_bss_info_arg *_arg = arg;
2340 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 2341 struct wpa_scan_res **tmp;
2342 struct wpa_scan_res *r;
8c090654
JM		 2343 const u8 *ie, *beacon_ie;
2344 size_t ie_len, beacon_ie_len;
2345 u8 *pos;
3f5285e8 2346
b3db1e1c
JM		 2347 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2348 genlmsg_attrlen(gnlh, 0), NULL);
2349 if (!tb[NL80211_ATTR_BSS])
2350 return NL_SKIP;
2351 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
2352 bss_policy))
2353 return NL_SKIP;
2354 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
2355 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2356 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2357 } else {
2358 ie = NULL;
2359 ie_len = 0;
2360 }
8c090654
JM		 2361 if (bss[NL80211_BSS_BEACON_IES]) {
2362 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
2363 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
2364 } else {
2365 beacon_ie = NULL;
2366 beacon_ie_len = 0;
2367 }
3f5285e8 2368
3812464c
JM		 2369 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
2370 ie ? ie_len : beacon_ie_len))
2371 return NL_SKIP;
2372
8c090654 2373 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 2374 if (r == NULL)
b3db1e1c
JM		 2375 return NL_SKIP;
2376 if (bss[NL80211_BSS_BSSID])
2377 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
2378 ETH_ALEN);
2379 if (bss[NL80211_BSS_FREQUENCY])
2380 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2381 if (bss[NL80211_BSS_BEACON_INTERVAL])
2382 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
2383 if (bss[NL80211_BSS_CAPABILITY])
2384 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 2385 r->flags |= WPA_SCAN_NOISE_INVALID;
2386 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 2387 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 2388 r->level /= 100; /* mBm to dBm */
2389 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
2390 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
2391 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
2392 r->flags |= WPA_SCAN_LEVEL_INVALID;
2393 } else
2394 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 2395 if (bss[NL80211_BSS_TSF])
2396 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 2397 if (bss[NL80211_BSS_SEEN_MS_AGO])
2398 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 2399 r->ie_len = ie_len;
8c090654
JM		 2400 pos = (u8 *) (r + 1);
2401 if (ie) {
2402 os_memcpy(pos, ie, ie_len);
2403 pos += ie_len;
2404 }
2405 r->beacon_ie_len = beacon_ie_len;
2406 if (beacon_ie)
2407 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 2408
e6b8efeb
JM		 2409 if (bss[NL80211_BSS_STATUS]) {
2410 enum nl80211_bss_status status;
2411 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2412 switch (status) {
2413 case NL80211_BSS_STATUS_AUTHENTICATED:
2414 r->flags |= WPA_SCAN_AUTHENTICATED;
2415 break;
2416 case NL80211_BSS_STATUS_ASSOCIATED:
2417 r->flags |= WPA_SCAN_ASSOCIATED;
2418 break;
2419 default:
2420 break;
2421 }
2422 }
2423
3f5285e8
JM		 2424 tmp = os_realloc(res->res,
2425 (res->num + 1) * sizeof(struct wpa_scan_res *));
2426 if (tmp == NULL) {
2427 os_free(r);
b3db1e1c 2428 return NL_SKIP;
3f5285e8
JM		 2429 }
2430 tmp[res->num++] = r;
2431 res->res = tmp;
b3db1e1c
JM		 2432
2433 return NL_SKIP;
3f5285e8 2434}
b3db1e1c 2435
3f5285e8 2436
d72aad94
JM		 2437static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
2438 const u8 *addr)
2439{
2440 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
2441 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 2442 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 2443 wpa_driver_nl80211_mlme(drv, addr,
2444 NL80211_CMD_DEAUTHENTICATE,
77339912 2445 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 2446 }
2447}
2448
2449
e6b8efeb
JM		 2450static void wpa_driver_nl80211_check_bss_status(
2451 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
2452{
2453 size_t i;
2454
2455 for (i = 0; i < res->num; i++) {
2456 struct wpa_scan_res *r = res->res[i];
2457 if (r->flags & WPA_SCAN_AUTHENTICATED) {
2458 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
2459 "indicates BSS status with " MACSTR
2460 " as authenticated",
2461 MAC2STR(r->bssid));
2462 if (drv->nlmode == NL80211_IFTYPE_STATION &&
2463 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
2464 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
2465 0) {
2466 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
2467 " in local state (auth=" MACSTR
2468 " assoc=" MACSTR ")",
2469 MAC2STR(drv->auth_bssid),
2470 MAC2STR(drv->bssid));
582507be 2471 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 2472 }
2473 }
2474
2475 if (r->flags & WPA_SCAN_ASSOCIATED) {
2476 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
2477 "indicate BSS status with " MACSTR
2478 " as associated",
2479 MAC2STR(r->bssid));
2480 if (drv->nlmode == NL80211_IFTYPE_STATION &&
2481 !drv->associated) {
2482 wpa_printf(MSG_DEBUG, "nl80211: Local state "
2483 "(not associated) does not match "
2484 "with BSS state");
d72aad94 2485 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 2486 } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
2487 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
2488 0) {
2489 wpa_printf(MSG_DEBUG, "nl80211: Local state "
2490 "(associated with " MACSTR ") does "
2491 "not match with BSS state",
d72aad94
JM		 2492 MAC2STR(drv->bssid));
2493 clear_state_mismatch(drv, r->bssid);
2494 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 2495 }
2496 }
2497 }
2498}
2499
2500
d1f9c410
JM		 2501static void wpa_scan_results_free(struct wpa_scan_results *res)
2502{
2503 size_t i;
2504
2505 if (res == NULL)
2506 return;
2507
2508 for (i = 0; i < res->num; i++)
2509 os_free(res->res[i]);
2510 os_free(res->res);
2511 os_free(res);
2512}
2513
2514
7e5ba1b9 2515static struct wpa_scan_results *
8856462d 2516nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 2517{
b3db1e1c 2518 struct nl_msg *msg;
3f5285e8 2519 struct wpa_scan_results *res;
b3db1e1c 2520 int ret;
3812464c 2521 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 2522
2523 res = os_zalloc(sizeof(*res));
b3db1e1c 2524 if (res == NULL)
8e2c104f 2525 return NULL;
b3db1e1c
JM		 2526 msg = nlmsg_alloc();
2527 if (!msg)
2528 goto nla_put_failure;
3f5285e8 2529
b3db1e1c
JM		 2530 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
2531 NL80211_CMD_GET_SCAN, 0);
2532 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2533
3812464c
JM		 2534 arg.drv = drv;
2535 arg.res = res;
2536 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 2537 msg = NULL;
2538 if (ret == 0) {
2539 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
2540 (unsigned long) res->num);
2541 return res;
3f5285e8 2542 }
b3db1e1c
JM		 2543 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
2544 "(%s)", ret, strerror(-ret));
2545nla_put_failure:
2546 nlmsg_free(msg);
2547 wpa_scan_results_free(res);
2548 return NULL;
3f5285e8
JM		 2549}
2550
2551
8856462d
JM		 2552/**
2553 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
2554 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
2555 * Returns: Scan results on success, -1 on failure
2556 */
2557static struct wpa_scan_results *
2558wpa_driver_nl80211_get_scan_results(void *priv)
2559{
a2e40bb6
FF		 2560 struct i802_bss *bss = priv;
2561 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 2562 struct wpa_scan_results *res;
2563
2564 res = nl80211_get_scan_results(drv);
2565 if (res)
2566 wpa_driver_nl80211_check_bss_status(drv, res);
2567 return res;
2568}
2569
2570
2571static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
2572{
2573 struct wpa_scan_results *res;
2574 size_t i;
2575
2576 res = nl80211_get_scan_results(drv);
2577 if (res == NULL) {
2578 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
2579 return;
2580 }
2581
2582 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
2583 for (i = 0; i < res->num; i++) {
2584 struct wpa_scan_res *r = res->res[i];
2585 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
2586 (int) i, (int) res->num, MAC2STR(r->bssid),
2587 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
2588 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
2589 }
2590
2591 wpa_scan_results_free(res);
2592}
2593
2594
642187d6 2595static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 2596 enum wpa_alg alg, const u8 *addr,
2597 int key_idx, int set_tx,
642187d6
JM		 2598 const u8 *seq, size_t seq_len,
2599 const u8 *key, size_t key_len)
3f5285e8 2600{
a2e40bb6
FF		 2601 struct i802_bss *bss = priv;
2602 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 2603 int ifindex = if_nametoindex(ifname);
3f5285e8 2604 struct nl_msg *msg;
1ad1cdc2 2605 int ret;
3f5285e8 2606
1ad1cdc2
JM		 2607 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
2608 "set_tx=%d seq_len=%lu key_len=%lu",
2609 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 2610 (unsigned long) seq_len, (unsigned long) key_len);
2611
2612 msg = nlmsg_alloc();
1ad1cdc2
JM		 2613 if (!msg)
2614 return -ENOMEM;
3f5285e8
JM		 2615
2616 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 2617 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2618 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 2619 } else {
1ad1cdc2
JM		 2620 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2621 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8 2622 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 2623 switch (alg) {
2624 case WPA_ALG_WEP:
2625 if (key_len == 5)
2626 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2627 WLAN_CIPHER_SUITE_WEP40);
2628 else
2629 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2630 WLAN_CIPHER_SUITE_WEP104);
2631 break;
2632 case WPA_ALG_TKIP:
2633 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2634 WLAN_CIPHER_SUITE_TKIP);
2635 break;
2636 case WPA_ALG_CCMP:
2637 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2638 WLAN_CIPHER_SUITE_CCMP);
2639 break;
2640 case WPA_ALG_IGTK:
2641 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2642 WLAN_CIPHER_SUITE_AES_CMAC);
2643 break;
2644 default:
2645 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2646 "algorithm %d", __func__, alg);
3f5285e8
JM		 2647 nlmsg_free(msg);
2648 return -1;
2649 }
2650 }
2651
849ef835 2652 if (seq && seq_len)
1ad1cdc2
JM		 2653 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
2654
0382097e 2655 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 2656 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
2657 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 2658
2659 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
2660 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
2661 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
2662 NL80211_KEYTYPE_GROUP);
2663 }
60ea8187
JM		 2664 } else if (addr && is_broadcast_ether_addr(addr)) {
2665 struct nl_msg *types;
2666 int err;
2667 wpa_printf(MSG_DEBUG, " broadcast key");
2668 types = nlmsg_alloc();
2669 if (!types)
2670 goto nla_put_failure;
2671 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
2672 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
2673 types);
2674 nlmsg_free(types);
2675 if (err)
2676 goto nla_put_failure;
3f5285e8
JM		 2677 }
2678 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 2679 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 2680
1ad1cdc2 2681 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 2682 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 2683 ret = 0;
2684 if (ret)
2685 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
2686 ret, strerror(-ret));
3f5285e8 2687
1ad1cdc2
JM		 2688 /*
2689 * If we failed or don't need to set the default TX key (below),
2690 * we're done here.
2691 */
2692 if (ret || !set_tx || alg == WPA_ALG_NONE)
2693 return ret;
0382097e
JM		 2694 if (drv->nlmode == NL80211_IFTYPE_AP && addr &&
2695 !is_broadcast_ether_addr(addr))
de12717a 2696 return ret;
3f5285e8 2697
1ad1cdc2
JM		 2698 msg = nlmsg_alloc();
2699 if (!msg)
2700 return -ENOMEM;
3f5285e8 2701
1ad1cdc2
JM		 2702 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2703 0, NL80211_CMD_SET_KEY, 0);
2704 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2705 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2706 if (alg == WPA_ALG_IGTK)
2707 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
2708 else
2709 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 2710 if (addr && is_broadcast_ether_addr(addr)) {
2711 struct nl_msg *types;
2712 int err;
2713 types = nlmsg_alloc();
2714 if (!types)
2715 goto nla_put_failure;
2716 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
2717 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
2718 types);
2719 nlmsg_free(types);
2720 if (err)
2721 goto nla_put_failure;
2722 } else if (addr) {
2723 struct nl_msg *types;
2724 int err;
2725 types = nlmsg_alloc();
2726 if (!types)
2727 goto nla_put_failure;
2728 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
2729 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
2730 types);
2731 nlmsg_free(types);
2732 if (err)
2733 goto nla_put_failure;
2734 }
3f5285e8 2735
1ad1cdc2
JM		 2736 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2737 if (ret == -ENOENT)
2738 ret = 0;
2739 if (ret)
2740 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
2741 "err=%d %s)", ret, strerror(-ret));
2742 return ret;
3f5285e8
JM		 2743
2744nla_put_failure:
6241fcb1 2745 return -ENOBUFS;
3f5285e8
JM		 2746}
2747
2748
71934751 2749static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 2750 int key_idx, int defkey,
2751 const u8 *seq, size_t seq_len,
2752 const u8 *key, size_t key_len)
2753{
2754 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
2755 if (!key_attr)
2756 return -1;
2757
2758 if (defkey && alg == WPA_ALG_IGTK)
2759 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
2760 else if (defkey)
2761 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2762
2763 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
2764
d723bab4
JM		 2765 switch (alg) {
2766 case WPA_ALG_WEP:
2767 if (key_len == 5)
2aa5f847
JM		 2768 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2769 WLAN_CIPHER_SUITE_WEP40);
d723bab4 2770 else
2aa5f847
JM		 2771 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2772 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 2773 break;
2774 case WPA_ALG_TKIP:
2aa5f847 2775 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 2776 break;
2777 case WPA_ALG_CCMP:
2aa5f847 2778 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 2779 break;
2780 case WPA_ALG_IGTK:
2aa5f847
JM		 2781 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2782 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 2783 break;
2784 default:
2785 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2786 "algorithm %d", __func__, alg);
0194fedb 2787 return -1;
d723bab4 2788 }
0194fedb
JB		 2789
2790 if (seq && seq_len)
2791 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
2792
2793 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
2794
2795 nla_nest_end(msg, key_attr);
2796
2797 return 0;
2798 nla_put_failure:
2799 return -1;
2800}
2801
c811d5bc 2802
cfaab580
ZY		 2803static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
2804 struct nl_msg *msg)
2805{
2806 int i, privacy = 0;
2807 struct nlattr *nl_keys, *nl_key;
2808
2809 for (i = 0; i < 4; i++) {
2810 if (!params->wep_key[i])
2811 continue;
2812 privacy = 1;
2813 break;
2814 }
ce04af5a
JM		 2815 if (params->wps == WPS_MODE_PRIVACY)
2816 privacy = 1;
2817 if (params->pairwise_suite &&
2818 params->pairwise_suite != WPA_CIPHER_NONE)
2819 privacy = 1;
2820
cfaab580
ZY		 2821 if (!privacy)
2822 return 0;
2823
2824 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
2825
2826 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
2827 if (!nl_keys)
2828 goto nla_put_failure;
2829
2830 for (i = 0; i < 4; i++) {
2831 if (!params->wep_key[i])
2832 continue;
2833
2834 nl_key = nla_nest_start(msg, i);
2835 if (!nl_key)
2836 goto nla_put_failure;
2837
2838 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
2839 params->wep_key[i]);
2840 if (params->wep_key_len[i] == 5)
2841 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2842 WLAN_CIPHER_SUITE_WEP40);
2843 else
2844 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2845 WLAN_CIPHER_SUITE_WEP104);
2846
2847 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
2848
2849 if (i == params->wep_tx_keyidx)
2850 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2851
2852 nla_nest_end(msg, nl_key);
2853 }
2854 nla_nest_end(msg, nl_keys);
2855
2856 return 0;
2857
2858nla_put_failure:
2859 return -ENOBUFS;
2860}
2861
2862
c2a04078 2863static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 2864 const u8 *addr, int cmd, u16 reason_code,
2865 int local_state_change)
c2a04078
JM		 2866{
2867 int ret = -1;
2868 struct nl_msg *msg;
2869
2870 msg = nlmsg_alloc();
2871 if (!msg)
2872 return -1;
2873
2874 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2875
2876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2877 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2878 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 2879 if (local_state_change)
2880 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 2881
2882 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2883 msg = NULL;
2884 if (ret) {
2885 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2886 "(%s)", ret, strerror(-ret));
2887 goto nla_put_failure;
2888 }
2889 ret = 0;
2890
2891nla_put_failure:
2892 nlmsg_free(msg);
2893 return ret;
2894}
3f5285e8
JM		 2895
2896
cfaab580
ZY		 2897static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2898 const u8 *addr, int reason_code)
2899{
2e75a2b3
JM		 2900 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
2901 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 2902 drv->associated = 0;
2903 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 2904 reason_code, 0);
cfaab580
ZY		 2905}
2906
2907
3f5285e8 2908static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 2909 int reason_code)
3f5285e8 2910{
a2e40bb6
FF		 2911 struct i802_bss *bss = priv;
2912 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 2913 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2914 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 2915 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
2916 __func__, MAC2STR(addr), reason_code);
13405f35 2917 drv->associated = 0;
c2a04078 2918 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 2919 reason_code, 0);
3f5285e8
JM		 2920}
2921
2922
2923static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 2924 int reason_code)
3f5285e8 2925{
a2e40bb6
FF		 2926 struct i802_bss *bss = priv;
2927 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 2928 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2929 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2930 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2931 drv->associated = 0;
c2a04078 2932 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 2933 reason_code, 0);
3f5285e8
JM		 2934}
2935
2936
c2a04078
JM		 2937static int wpa_driver_nl80211_authenticate(
2938 void *priv, struct wpa_driver_auth_params *params)
2939{
a2e40bb6
FF		 2940 struct i802_bss *bss = priv;
2941 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 2942 int ret = -1, i;
c2a04078
JM		 2943 struct nl_msg *msg;
2944 enum nl80211_auth_type type;
6d6f4bb8 2945 int count = 0;
c2a04078
JM		 2946
2947 drv->associated = 0;
e6b8efeb 2948 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088
JM		 2949 /* FIX: IBSS mode */
2950 if (drv->nlmode != NL80211_IFTYPE_STATION)
2951 wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
c2a04078 2952
a2e40bb6 2953 if (wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA) < 0)
4a867032
JM		 2954 return -1;
2955
6d6f4bb8 2956retry:
c2a04078
JM		 2957 msg = nlmsg_alloc();
2958 if (!msg)
2959 return -1;
2960
2961 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2962 drv->ifindex);
a0b2f99b 2963
0194fedb
JB		 2964 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2965 NL80211_CMD_AUTHENTICATE, 0);
2966
a0b2f99b
JM		 2967 for (i = 0; i < 4; i++) {
2968 if (!params->wep_key[i])
2969 continue;
2ea2fcc7
HS		 2970 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
2971 NULL, i,
a0b2f99b
JM		 2972 i == params->wep_tx_keyidx, NULL, 0,
2973 params->wep_key[i],
2974 params->wep_key_len[i]);
0194fedb
JB		 2975 if (params->wep_tx_keyidx != i)
2976 continue;
2977 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2978 params->wep_key[i], params->wep_key_len[i])) {
2979 nlmsg_free(msg);
2980 return -1;
2981 }
a0b2f99b
JM		 2982 }
2983
c2a04078
JM		 2984 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2985 if (params->bssid) {
2986 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2987 MAC2STR(params->bssid));
2988 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2989 }
2990 if (params->freq) {
2991 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2992 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2993 }
2994 if (params->ssid) {
2995 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2996 params->ssid, params->ssid_len);
2997 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2998 params->ssid);
2999 }
3000 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3001 if (params->ie)
3002 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 3003 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 3004 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 3005 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 3006 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 3007 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 3008 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 3009 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 3010 type = NL80211_AUTHTYPE_FT;
3011 else
3012 goto nla_put_failure;
3013 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3014 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 3015 if (params->local_state_change) {
3016 wpa_printf(MSG_DEBUG, " * Local state change only");
3017 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
3018 }
c2a04078
JM		 3019
3020 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3021 msg = NULL;
3022 if (ret) {
3023 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3024 "(%s)", ret, strerror(-ret));
6d6f4bb8 3025 count++;
77339912
JM		 3026 if (ret == -EALREADY && count == 1 && params->bssid &&
3027 !params->local_state_change) {
6d6f4bb8
JM		 3028 /*
3029 * mac80211 does not currently accept new
3030 * authentication if we are already authenticated. As a
3031 * workaround, force deauthentication and try again.
3032 */
3033 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3034 "after forced deauthentication");
3035 wpa_driver_nl80211_deauthenticate(
5205c4f9 3036 bss, params->bssid,
6d6f4bb8
JM		 3037 WLAN_REASON_PREV_AUTH_NOT_VALID);
3038 nlmsg_free(msg);
3039 goto retry;
3040 }
c2a04078
JM		 3041 goto nla_put_failure;
3042 }
3043 ret = 0;
3044 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
3045 "successfully");
3046
3047nla_put_failure:
3048 nlmsg_free(msg);
3049 return ret;
3050}
3051
3052
282d5590
JM		 3053struct phy_info_arg {
3054 u16 *num_modes;
3055 struct hostapd_hw_modes *modes;
3056};
3057
3058static int phy_info_handler(struct nl_msg *msg, void *arg)
3059{
3060 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3061 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3062 struct phy_info_arg *phy_info = arg;
3063
3064 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
3065
3066 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
3067 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3068 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
3069 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
3070 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
3071 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
3072 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
3073 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
3074 };
3075
3076 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
3077 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
3078 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3079 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
3080 };
3081
3082 struct nlattr *nl_band;
3083 struct nlattr *nl_freq;
3084 struct nlattr *nl_rate;
3085 int rem_band, rem_freq, rem_rate;
3086 struct hostapd_hw_modes *mode;
3087 int idx, mode_is_set;
3088
3089 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3090 genlmsg_attrlen(gnlh, 0), NULL);
3091
3092 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
3093 return NL_SKIP;
3094
3095 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 3096 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 3097 if (!mode)
3098 return NL_SKIP;
3099 phy_info->modes = mode;
3100
3101 mode_is_set = 0;
3102
3103 mode = &phy_info->modes[*(phy_info->num_modes)];
3104 memset(mode, 0, sizeof(*mode));
3105 *(phy_info->num_modes) += 1;
3106
3107 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
3108 nla_len(nl_band), NULL);
3109
3110 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
3111 mode->ht_capab = nla_get_u16(
3112 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
3113 }
3114
be8eb8ab
JM		 3115 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
3116 mode->a_mpdu_params |= nla_get_u8(
3117 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
3118 0x03;
3119 }
3120
3121 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
3122 mode->a_mpdu_params |= nla_get_u8(
3123 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
3124 2;
3125 }
3126
08eb154d
JM		 3127 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
3128 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
3129 u8 *mcs;
3130 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
3131 os_memcpy(mode->mcs_set, mcs, 16);
3132 }
3133
282d5590
JM		 3134 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3135 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3136 nla_len(nl_freq), freq_policy);
3137 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3138 continue;
3139 mode->num_channels++;
3140 }
3141
e62fb0a0 3142 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 3143 if (!mode->channels)
3144 return NL_SKIP;
3145
3146 idx = 0;
3147
3148 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3149 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3150 nla_len(nl_freq), freq_policy);
3151 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3152 continue;
3153
3154 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
3155 mode->channels[idx].flag = 0;
3156
3157 if (!mode_is_set) {
3158 /* crude heuristic */
3159 if (mode->channels[idx].freq < 4000)
3160 mode->mode = HOSTAPD_MODE_IEEE80211B;
3161 else
3162 mode->mode = HOSTAPD_MODE_IEEE80211A;
3163 mode_is_set = 1;
3164 }
3165
3166 /* crude heuristic */
3167 if (mode->channels[idx].freq < 4000)
5a0ffb5f 3168 if (mode->channels[idx].freq == 2484)
282d5590
JM		 3169 mode->channels[idx].chan = 14;
3170 else
3171 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
3172 else
3173 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
3174
3175 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3176 mode->channels[idx].flag |=
3177 HOSTAPD_CHAN_DISABLED;
3178 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
3179 mode->channels[idx].flag |=
3180 HOSTAPD_CHAN_PASSIVE_SCAN;
3181 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
3182 mode->channels[idx].flag |=
3183 HOSTAPD_CHAN_NO_IBSS;
3184 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
3185 mode->channels[idx].flag |=
3186 HOSTAPD_CHAN_RADAR;
3187
3188 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
3189 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3190 mode->channels[idx].max_tx_power =
3191 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
3192
3193 idx++;
3194 }
3195
3196 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3197 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3198 nla_len(nl_rate), rate_policy);
3199 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3200 continue;
3201 mode->num_rates++;
3202 }
3203
e62fb0a0 3204 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 3205 if (!mode->rates)
3206 return NL_SKIP;
3207
3208 idx = 0;
3209
3210 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3211 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3212 nla_len(nl_rate), rate_policy);
3213 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3214 continue;
fb7842aa 3215 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 3216
3217 /* crude heuristic */
3218 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 3219 mode->rates[idx] > 200)
282d5590
JM		 3220 mode->mode = HOSTAPD_MODE_IEEE80211G;
3221
282d5590
JM		 3222 idx++;
3223 }
3224 }
3225
3226 return NL_SKIP;
3227}
3228
3229static struct hostapd_hw_modes *
3230wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
3231{
3232 u16 m;
3233 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
3234 int i, mode11g_idx = -1;
3235
3236 /* If only 802.11g mode is included, use it to construct matching
3237 * 802.11b mode data. */
3238
3239 for (m = 0; m < *num_modes; m++) {
3240 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
3241 return modes; /* 802.11b already included */
3242 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
3243 mode11g_idx = m;
3244 }
3245
3246 if (mode11g_idx < 0)
3247 return modes; /* 2.4 GHz band not supported at all */
3248
3249 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
3250 if (nmodes == NULL)
3251 return modes; /* Could not add 802.11b mode */
3252
3253 mode = &nmodes[*num_modes];
3254 os_memset(mode, 0, sizeof(*mode));
3255 (*num_modes)++;
3256 modes = nmodes;
3257
3258 mode->mode = HOSTAPD_MODE_IEEE80211B;
3259
3260 mode11g = &modes[mode11g_idx];
3261 mode->num_channels = mode11g->num_channels;
3262 mode->channels = os_malloc(mode11g->num_channels *
3263 sizeof(struct hostapd_channel_data));
3264 if (mode->channels == NULL) {
3265 (*num_modes)--;
3266 return modes; /* Could not add 802.11b mode */
3267 }
3268 os_memcpy(mode->channels, mode11g->channels,
3269 mode11g->num_channels * sizeof(struct hostapd_channel_data));
3270
3271 mode->num_rates = 0;
fb7842aa 3272 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 3273 if (mode->rates == NULL) {
3274 os_free(mode->channels);
3275 (*num_modes)--;
3276 return modes; /* Could not add 802.11b mode */
3277 }
3278
3279 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 3280 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
3281 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 3282 continue;
3283 mode->rates[mode->num_rates] = mode11g->rates[i];
3284 mode->num_rates++;
3285 if (mode->num_rates == 4)
3286 break;
3287 }
3288
3289 if (mode->num_rates == 0) {
3290 os_free(mode->channels);
3291 os_free(mode->rates);
3292 (*num_modes)--;
3293 return modes; /* No 802.11b rates */
3294 }
3295
3296 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
3297 "information");
3298
3299 return modes;
3300}
3301
3302
d8e66e80
JM		 3303static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
3304 int end)
3305{
3306 int c;
3307
3308 for (c = 0; c < mode->num_channels; c++) {
3309 struct hostapd_channel_data *chan = &mode->channels[c];
3310 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
3311 chan->flag |= HOSTAPD_CHAN_HT40;
3312 }
3313}
3314
3315
3316static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
3317 int end)
3318{
3319 int c;
3320
3321 for (c = 0; c < mode->num_channels; c++) {
3322 struct hostapd_channel_data *chan = &mode->channels[c];
3323 if (!(chan->flag & HOSTAPD_CHAN_HT40))
3324 continue;
3325 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
3326 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
3327 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
3328 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
3329 }
3330}
3331
3332
3333static void nl80211_reg_rule_ht40(struct nlattr *tb[],
3334 struct phy_info_arg *results)
3335{
3336 u32 start, end, max_bw;
3337 u16 m;
3338
3339 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3340 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3341 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3342 return;
3343
3344 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3345 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3346 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3347
3348 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
3349 start, end, max_bw);
3350 if (max_bw < 40)
3351 return;
3352
3353 for (m = 0; m < *results->num_modes; m++) {
3354 if (!(results->modes[m].ht_capab &
3355 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3356 continue;
3357 nl80211_set_ht40_mode(&results->modes[m], start, end);
3358 }
3359}
3360
3361
3362static void nl80211_reg_rule_sec(struct nlattr *tb[],
3363 struct phy_info_arg *results)
3364{
3365 u32 start, end, max_bw;
3366 u16 m;
3367
3368 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3369 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3370 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3371 return;
3372
3373 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3374 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3375 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3376
3377 if (max_bw < 20)
3378 return;
3379
3380 for (m = 0; m < *results->num_modes; m++) {
3381 if (!(results->modes[m].ht_capab &
3382 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3383 continue;
3384 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
3385 }
3386}
3387
3388
3389static int nl80211_get_reg(struct nl_msg *msg, void *arg)
3390{
3391 struct phy_info_arg *results = arg;
3392 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3393 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3394 struct nlattr *nl_rule;
3395 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
3396 int rem_rule;
3397 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3398 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3399 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3400 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3401 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3402 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3403 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3404 };
3405
3406 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3407 genlmsg_attrlen(gnlh, 0), NULL);
3408 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
3409 !tb_msg[NL80211_ATTR_REG_RULES]) {
3410 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
3411 "available");
3412 return NL_SKIP;
3413 }
3414
3415 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
3416 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
3417
3418 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3419 {
3420 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3421 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3422 nl80211_reg_rule_ht40(tb_rule, results);
3423 }
3424
3425 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3426 {
3427 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3428 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3429 nl80211_reg_rule_sec(tb_rule, results);
3430 }
3431
3432 return NL_SKIP;
3433}
3434
3435
3436static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
3437 struct phy_info_arg *results)
3438{
3439 struct nl_msg *msg;
3440
3441 msg = nlmsg_alloc();
3442 if (!msg)
3443 return -ENOMEM;
3444
3445 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3446 0, NL80211_CMD_GET_REG, 0);
3447 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
3448}
3449
3450
282d5590
JM		 3451static struct hostapd_hw_modes *
3452wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
3453{
a2e40bb6
FF		 3454 struct i802_bss *bss = priv;
3455 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 3456 struct nl_msg *msg;
3457 struct phy_info_arg result = {
3458 .num_modes = num_modes,
3459 .modes = NULL,
3460 };
3461
3462 *num_modes = 0;
3463 *flags = 0;
3464
3465 msg = nlmsg_alloc();
3466 if (!msg)
3467 return NULL;
3468
3469 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3470 0, NL80211_CMD_GET_WIPHY, 0);
3471
3472 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3473
d8e66e80
JM		 3474 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
3475 nl80211_set_ht40_flags(drv, &result);
282d5590 3476 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 3477 }
282d5590
JM		 3478 nla_put_failure:
3479 return NULL;
3480}
3481
3482
2c2010ac
JM		 3483static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
3484 const void *data, size_t len,
3485 int encrypt)
3486{
3487 __u8 rtap_hdr[] = {
3488 0x00, 0x00, /* radiotap version */
3489 0x0e, 0x00, /* radiotap length */
3490 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
3491 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
3492 0x00, /* padding */
3493 0x00, 0x00, /* RX and TX flags to indicate that */
3494 0x00, 0x00, /* this is the injected frame directly */
3495 };
3496 struct iovec iov[2] = {
3497 {
3498 .iov_base = &rtap_hdr,
3499 .iov_len = sizeof(rtap_hdr),
3500 },
3501 {
3502 .iov_base = (void *) data,
3503 .iov_len = len,
3504 }
3505 };
3506 struct msghdr msg = {
3507 .msg_name = NULL,
3508 .msg_namelen = 0,
3509 .msg_iov = iov,
3510 .msg_iovlen = 2,
3511 .msg_control = NULL,
3512 .msg_controllen = 0,
3513 .msg_flags = 0,
3514 };
ebbec8b2 3515 int res;
2c2010ac
JM		 3516
3517 if (encrypt)
3518 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
3519
ebbec8b2
JM		 3520 res = sendmsg(drv->monitor_sock, &msg, 0);
3521 if (res < 0) {
3522 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
3523 return -1;
3524 }
3525 return 0;
2c2010ac
JM		 3526}
3527
3528
3529static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
3530 size_t data_len)
3531{
a2e40bb6
FF		 3532 struct i802_bss *bss = priv;
3533 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 3534 struct ieee80211_mgmt *mgmt;
7a47d567 3535 int encrypt = 1;
2c2010ac
JM		 3536 u16 fc;
3537
3538 mgmt = (struct ieee80211_mgmt *) data;
3539 fc = le_to_host16(mgmt->frame_control);
3540
5582a5d1
JB		 3541 if (drv->nlmode == NL80211_IFTYPE_STATION &&
3542 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3543 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
3544 /*
3545 * The use of last_mgmt_freq is a bit of a hack,
3546 * but it works due to the single-threaded nature
3547 * of wpa_supplicant.
3548 */
5dfca53f 3549 return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0,
5582a5d1
JB		 3550 data, data_len, NULL);
3551 }
3552
2c2010ac
JM		 3553 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3554 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
3555 /*
3556 * Only one of the authentication frame types is encrypted.
3557 * In order for static WEP encryption to work properly (i.e.,
3558 * to not encrypt the frame), we need to tell mac80211 about
3559 * the frames that must not be encrypted.
3560 */
3561 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
3562 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 3563 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
3564 encrypt = 0;
2c2010ac
JM		 3565 }
3566
7a47d567 3567 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 3568}
3569
3570
8b897f5a 3571static int wpa_driver_nl80211_set_beacon(void *priv,
5d674872
JM		 3572 const u8 *head, size_t head_len,
3573 const u8 *tail, size_t tail_len,
3574 int dtim_period, int beacon_int)
d2440ba0 3575{
a2e40bb6
FF		 3576 struct i802_bss *bss = priv;
3577 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 3578 struct nl_msg *msg;
3579 u8 cmd = NL80211_CMD_NEW_BEACON;
3580 int ret;
b4fd6fab 3581 int beacon_set;
8b897f5a 3582 int ifindex = if_nametoindex(bss->ifname);
b4fd6fab 3583
b4fd6fab 3584 beacon_set = bss->beacon_set;
d2440ba0
JM		 3585
3586 msg = nlmsg_alloc();
3587 if (!msg)
3588 return -ENOMEM;
3589
3590 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 3591 beacon_set);
3592 if (beacon_set)
d2440ba0
JM		 3593 cmd = NL80211_CMD_SET_BEACON;
3594
3595 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3596 0, cmd, 0);
3597 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
3598 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
b4fd6fab 3599 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5d674872 3600 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
d2440ba0
JM		 3601 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
3602
3603 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3604 if (ret) {
3605 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
3606 ret, strerror(-ret));
b4fd6fab 3607 } else {
b4fd6fab 3608 bss->beacon_set = 1;
b4fd6fab 3609 }
d2440ba0
JM		 3610 return ret;
3611 nla_put_failure:
3612 return -ENOBUFS;
3613}
3614
3615
f019981a
JM		 3616static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
3617 int freq, int ht_enabled,
3618 int sec_channel_offset)
1581b38b
JM		 3619{
3620 struct nl_msg *msg;
d2440ba0 3621 int ret;
1581b38b
JM		 3622
3623 msg = nlmsg_alloc();
3624 if (!msg)
3625 return -1;
3626
3627 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3628 NL80211_CMD_SET_WIPHY, 0);
3629
3630 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 3631 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
3632 if (ht_enabled) {
3633 switch (sec_channel_offset) {
3634 case -1:
3635 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3636 NL80211_CHAN_HT40MINUS);
3637 break;
3638 case 1:
3639 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3640 NL80211_CHAN_HT40PLUS);
3641 break;
3642 default:
3643 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3644 NL80211_CHAN_HT20);
3645 break;
3646 }
3647 }
1581b38b 3648
d2440ba0
JM		 3649 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3650 if (ret == 0)
1581b38b 3651 return 0;
f019981a
JM		 3652 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
3653 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 3654nla_put_failure:
3655 return -1;
3656}
3657
0f4e8b4f 3658
62847751 3659static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 3660 struct hostapd_sta_add_params *params)
3661{
a2e40bb6
FF		 3662 struct i802_bss *bss = priv;
3663 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 3664 struct nl_msg *msg;
3665 int ret = -ENOBUFS;
3666
3667 msg = nlmsg_alloc();
3668 if (!msg)
3669 return -ENOMEM;
3670
3671 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3672 0, NL80211_CMD_NEW_STATION, 0);
3673
62847751 3674 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f
JM		 3675 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
3676 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
3677 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
3678 params->supp_rates);
3679 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
3680 params->listen_interval);
0f4e8b4f
JM		 3681 if (params->ht_capabilities) {
3682 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 3683 sizeof(*params->ht_capabilities),
3684 params->ht_capabilities);
0f4e8b4f 3685 }
0f4e8b4f
JM		 3686
3687 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3688 if (ret)
3689 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
3690 "result: %d (%s)", ret, strerror(-ret));
3691 if (ret == -EEXIST)
3692 ret = 0;
3693 nla_put_failure:
3694 return ret;
3695}
3696
3697
3698static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
3699{
a2e40bb6
FF		 3700 struct i802_bss *bss = priv;
3701 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 3702 struct nl_msg *msg;
3703 int ret;
3704
3705 msg = nlmsg_alloc();
3706 if (!msg)
3707 return -ENOMEM;
3708
3709 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3710 0, NL80211_CMD_DEL_STATION, 0);
3711
3712 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 3713 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 3714 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3715
3716 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3717 if (ret == -ENOENT)
3718 return 0;
3719 return ret;
3720 nla_put_failure:
3721 return -ENOBUFS;
3722}
3723
1581b38b 3724
0915d02c
JM		 3725static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
3726 int ifidx)
3727{
3728 struct nl_msg *msg;
3729
c6e8e8e4
JM		 3730 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
3731
2135f224
JM		 3732#ifdef HOSTAPD
3733 /* stop listening for EAPOL on this interface */
3734 del_ifidx(drv, ifidx);
3735#endif /* HOSTAPD */
3736
0915d02c
JM		 3737 msg = nlmsg_alloc();
3738 if (!msg)
3739 goto nla_put_failure;
3740
3741 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3742 0, NL80211_CMD_DEL_INTERFACE, 0);
3743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
3744
3745 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
3746 return;
3747 nla_put_failure:
e748062b 3748 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 3749}
3750
3751
a35187e7
KH		 3752static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
3753 const char *ifname,
3754 enum nl80211_iftype iftype,
fbbfcbac 3755 const u8 *addr, int wds)
0915d02c
JM		 3756{
3757 struct nl_msg *msg, *flags = NULL;
3758 int ifidx;
3759 int ret = -ENOBUFS;
3760
3761 msg = nlmsg_alloc();
3762 if (!msg)
3763 return -1;
3764
3765 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3766 0, NL80211_CMD_NEW_INTERFACE, 0);
3767 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3768 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
3769 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
3770
3771 if (iftype == NL80211_IFTYPE_MONITOR) {
3772 int err;
3773
3774 flags = nlmsg_alloc();
3775 if (!flags)
3776 goto nla_put_failure;
3777
3778 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
3779
3780 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
3781
3782 nlmsg_free(flags);
3783
3784 if (err)
3785 goto nla_put_failure;
fbbfcbac
FF		 3786 } else if (wds) {
3787 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 3788 }
3789
3790 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3791 if (ret) {
3792 nla_put_failure:
a35187e7
KH		 3793 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
3794 ifname, ret, strerror(-ret));
0915d02c
JM		 3795 return ret;
3796 }
3797
3798 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 3799 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
3800 ifname, ifidx);
0915d02c
JM		 3801
3802 if (ifidx <= 0)
3803 return -1;
3804
2135f224
JM		 3805#ifdef HOSTAPD
3806 /* start listening for EAPOL on this interface */
3807 add_ifidx(drv, ifidx);
7bfc47c3 3808#endif /* HOSTAPD */
2135f224 3809
7bfc47c3 3810 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
2ac9688e 3811 linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
41d931ee
JM		 3812 nl80211_remove_iface(drv, ifidx);
3813 return -1;
2135f224 3814 }
2135f224 3815
0915d02c
JM		 3816 return ifidx;
3817}
22a7c9d7
JM		 3818
3819
a35187e7
KH		 3820static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
3821 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 3822 const u8 *addr, int wds)
a35187e7
KH		 3823{
3824 int ret;
3825
fbbfcbac 3826 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7
KH		 3827
3828 /* if error occured and interface exists already */
3829 if (ret == -ENFILE && if_nametoindex(ifname)) {
3830 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
3831
3832 /* Try to remove the interface that was already there. */
3833 nl80211_remove_iface(drv, if_nametoindex(ifname));
3834
3835 /* Try to create the interface again */
fbbfcbac
FF		 3836 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
3837 wds);
a35187e7
KH		 3838 }
3839
4e5cb1a3
JM		 3840 if (ret >= 0 && drv->disable_11b_rates)
3841 nl80211_disable_11b_rates(drv, ret, 1);
3842
a35187e7
KH		 3843 return ret;
3844}
0915d02c 3845
2135f224 3846
0915d02c
JM		 3847static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
3848{
3849 struct ieee80211_hdr *hdr;
f8b1f695
JM		 3850 u16 fc;
3851 union wpa_event_data event;
0915d02c
JM		 3852
3853 hdr = (struct ieee80211_hdr *) buf;
3854 fc = le_to_host16(hdr->frame_control);
3855
f8b1f695
JM		 3856 os_memset(&event, 0, sizeof(event));
3857 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
3858 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
3859 event.tx_status.dst = hdr->addr1;
3860 event.tx_status.data = buf;
3861 event.tx_status.data_len = len;
3862 event.tx_status.ack = ok;
3863 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 3864}
3865
3866
4b9841d3 3867static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 3868 u8 *buf, size_t len)
0915d02c 3869{
f8b1f695
JM		 3870 union wpa_event_data event;
3871 os_memset(&event, 0, sizeof(event));
0d9fc3d8 3872 event.rx_from_unknown.frame = buf;
f8b1f695
JM		 3873 event.rx_from_unknown.len = len;
3874 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 3875}
0915d02c 3876
4b9841d3
JM		 3877
3878static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 3879 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 3880{
3881 struct ieee80211_hdr *hdr;
f8b1f695
JM		 3882 u16 fc;
3883 union wpa_event_data event;
0915d02c
JM		 3884
3885 hdr = (struct ieee80211_hdr *) buf;
3886 fc = le_to_host16(hdr->frame_control);
0915d02c 3887
4b9841d3 3888 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 3889 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 3890 os_memset(&event, 0, sizeof(event));
3891 event.rx_mgmt.frame = buf;
3892 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 3893 event.rx_mgmt.datarate = datarate;
3894 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 3895 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 3896 break;
3897 case WLAN_FC_TYPE_CTRL:
3898 /* can only get here with PS-Poll frames */
3899 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 3900 from_unknown_sta(drv, buf, len);
0915d02c
JM		 3901 break;
3902 case WLAN_FC_TYPE_DATA:
0d9fc3d8 3903 from_unknown_sta(drv, buf, len);
0915d02c
JM		 3904 break;
3905 }
3906}
3907
3908
3909static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
3910{
3911 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3912 int len;
3913 unsigned char buf[3000];
3914 struct ieee80211_radiotap_iterator iter;
3915 int ret;
2a8b7416 3916 int datarate = 0, ssi_signal = 0;
4b9841d3 3917 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 3918
3919 len = recv(sock, buf, sizeof(buf), 0);
3920 if (len < 0) {
3921 perror("recv");
3922 return;
3923 }
3924
3925 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
3926 printf("received invalid radiotap frame\n");
3927 return;
3928 }
3929
0915d02c
JM		 3930 while (1) {
3931 ret = ieee80211_radiotap_iterator_next(&iter);
3932 if (ret == -ENOENT)
3933 break;
3934 if (ret) {
3935 printf("received invalid radiotap frame (%d)\n", ret);
3936 return;
3937 }
3938 switch (iter.this_arg_index) {
3939 case IEEE80211_RADIOTAP_FLAGS:
3940 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
3941 len -= 4;
3942 break;
3943 case IEEE80211_RADIOTAP_RX_FLAGS:
3944 rxflags = 1;
3945 break;
3946 case IEEE80211_RADIOTAP_TX_FLAGS:
3947 injected = 1;
3948 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
3949 IEEE80211_RADIOTAP_F_TX_FAIL;
3950 break;
3951 case IEEE80211_RADIOTAP_DATA_RETRIES:
3952 break;
3953 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 3954 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 3955 break;
3956 case IEEE80211_RADIOTAP_RATE:
2a8b7416 3957 datarate = *iter.this_arg * 5;
0915d02c
JM		 3958 break;
3959 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 3960 ssi_signal = *iter.this_arg;
0915d02c
JM		 3961 break;
3962 }
3963 }
3964
3965 if (rxflags && injected)
3966 return;
3967
3968 if (!injected)
4b9841d3 3969 handle_frame(drv, buf + iter.max_length,
2a8b7416 3970 len - iter.max_length, datarate, ssi_signal);
0915d02c 3971 else
4b9841d3
JM		 3972 handle_tx_callback(drv->ctx, buf + iter.max_length,
3973 len - iter.max_length, !failed);
0915d02c
JM		 3974}
3975
3976
3977/*
3978 * we post-process the filter code later and rewrite
3979 * this to the offset to the last instruction
3980 */
3981#define PASS 0xFF
3982#define FAIL 0xFE
3983
3984static struct sock_filter msock_filter_insns[] = {
3985 /*
3986 * do a little-endian load of the radiotap length field
3987 */
3988 /* load lower byte into A */
3989 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
3990 /* put it into X (== index register) */
3991 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3992 /* load upper byte into A */
3993 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
3994 /* left-shift it by 8 */
3995 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
3996 /* or with X */
3997 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
3998 /* put result into X */
3999 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4000
4001 /*
4002 * Allow management frames through, this also gives us those
4003 * management frames that we sent ourselves with status
4004 */
4005 /* load the lower byte of the IEEE 802.11 frame control field */
4006 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4007 /* mask off frame type and version */
4008 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
4009 /* accept frame if it's both 0, fall through otherwise */
4010 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
4011
4012 /*
4013 * TODO: add a bit to radiotap RX flags that indicates
4014 * that the sending station is not associated, then
4015 * add a filter here that filters on our DA and that flag
4016 * to allow us to deauth frames to that bad station.
4017 *
65ae1afd 4018 * For now allow all To DS data frames through.
0915d02c 4019 */
65ae1afd
HS		 4020 /* load the IEEE 802.11 frame control field */
4021 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
4022 /* mask off frame type, version and DS status */
4023 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
4024 /* accept frame if version 0, type 2 and To DS, fall through otherwise
4025 */
4026 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 4027
4028#if 0
4029 /*
fbbfcbac 4030 * drop non-data frames
0915d02c
JM		 4031 */
4032 /* load the lower byte of the frame control field */
4033 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4034 /* mask off QoS bit */
4035 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
4036 /* drop non-data frames */
4037 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 4038#endif
0915d02c 4039 /* load the upper byte of the frame control field */
fbbfcbac 4040 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 4041 /* mask off toDS/fromDS */
4042 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 4043 /* accept WDS frames */
4044 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 4045
4046 /*
4047 * add header length to index
4048 */
4049 /* load the lower byte of the frame control field */
4050 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4051 /* mask off QoS bit */
4052 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
4053 /* right shift it by 6 to give 0 or 2 */
4054 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
4055 /* add data frame header length */
4056 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
4057 /* add index, was start of 802.11 header */
4058 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
4059 /* move to index, now start of LL header */
4060 BPF_STMT(BPF_MISC | BPF_TAX, 0),
4061
4062 /*
4063 * Accept empty data frames, we use those for
4064 * polling activity.
4065 */
4066 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
4067 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
4068
4069 /*
4070 * Accept EAPOL frames
4071 */
4072 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
4073 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
4074 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
4075 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
4076
4077 /* keep these last two statements or change the code below */
4078 /* return 0 == "DROP" */
4079 BPF_STMT(BPF_RET | BPF_K, 0),
4080 /* return ~0 == "keep all" */
4081 BPF_STMT(BPF_RET | BPF_K, ~0),
4082};
4083
4084static struct sock_fprog msock_filter = {
4085 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
4086 .filter = msock_filter_insns,
4087};
4088
4089
4090static int add_monitor_filter(int s)
4091{
4092 int idx;
4093
4094 /* rewrite all PASS/FAIL jump offsets */
4095 for (idx = 0; idx < msock_filter.len; idx++) {
4096 struct sock_filter *insn = &msock_filter_insns[idx];
4097
4098 if (BPF_CLASS(insn->code) == BPF_JMP) {
4099 if (insn->code == (BPF_JMP|BPF_JA)) {
4100 if (insn->k == PASS)
4101 insn->k = msock_filter.len - idx - 2;
4102 else if (insn->k == FAIL)
4103 insn->k = msock_filter.len - idx - 3;
4104 }
4105
4106 if (insn->jt == PASS)
4107 insn->jt = msock_filter.len - idx - 2;
4108 else if (insn->jt == FAIL)
4109 insn->jt = msock_filter.len - idx - 3;
4110
4111 if (insn->jf == PASS)
4112 insn->jf = msock_filter.len - idx - 2;
4113 else if (insn->jf == FAIL)
4114 insn->jf = msock_filter.len - idx - 3;
4115 }
4116 }
4117
4118 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
4119 &msock_filter, sizeof(msock_filter))) {
4120 perror("SO_ATTACH_FILTER");
4121 return -1;
4122 }
4123
4124 return 0;
4125}
4126
4127
460456f8
JM		 4128static void nl80211_remove_monitor_interface(
4129 struct wpa_driver_nl80211_data *drv)
4130{
4131 if (drv->monitor_ifidx >= 0) {
4132 nl80211_remove_iface(drv, drv->monitor_ifidx);
4133 drv->monitor_ifidx = -1;
4134 }
504e905c
JM		 4135 if (drv->monitor_sock >= 0) {
4136 eloop_unregister_read_sock(drv->monitor_sock);
4137 close(drv->monitor_sock);
4138 drv->monitor_sock = -1;
4139 }
460456f8
JM		 4140}
4141
4142
0915d02c
JM		 4143static int
4144nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
4145{
4146 char buf[IFNAMSIZ];
4147 struct sockaddr_ll ll;
4148 int optval;
4149 socklen_t optlen;
0915d02c 4150
a2e40bb6 4151 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
0915d02c
JM		 4152 buf[IFNAMSIZ - 1] = '\0';
4153
4154 drv->monitor_ifidx =
fbbfcbac
FF		 4155 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
4156 0);
0915d02c
JM		 4157
4158 if (drv->monitor_ifidx < 0)
4159 return -1;
4160
34f2f814 4161 if (linux_set_iface_flags(drv->ioctl_sock, buf, 1))
0915d02c 4162 goto error;
0915d02c
JM		 4163
4164 memset(&ll, 0, sizeof(ll));
4165 ll.sll_family = AF_PACKET;
4166 ll.sll_ifindex = drv->monitor_ifidx;
4167 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
4168 if (drv->monitor_sock < 0) {
4169 perror("socket[PF_PACKET,SOCK_RAW]");
4170 goto error;
4171 }
4172
4173 if (add_monitor_filter(drv->monitor_sock)) {
4174 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
4175 "interface; do filtering in user space");
4176 /* This works, but will cost in performance. */
4177 }
4178
2135f224 4179 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 4180 perror("monitor socket bind");
4181 goto error;
4182 }
4183
4184 optlen = sizeof(optval);
4185 optval = 20;
4186 if (setsockopt
4187 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
4188 perror("Failed to set socket priority");
4189 goto error;
4190 }
4191
4192 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
4193 drv, NULL)) {
4194 printf("Could not register monitor read socket\n");
4195 goto error;
4196 }
4197
4198 return 0;
4199 error:
460456f8 4200 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 4201 return -1;
4202}
4203
db149ac9
JM		 4204
4205static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
4206
4207static int wpa_driver_nl80211_hapd_send_eapol(
4208 void *priv, const u8 *addr, const u8 *data,
4209 size_t data_len, int encrypt, const u8 *own_addr)
4210{
a2e40bb6
FF		 4211 struct i802_bss *bss = priv;
4212 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 4213 struct ieee80211_hdr *hdr;
4214 size_t len;
4215 u8 *pos;
4216 int res;
4217#if 0 /* FIX */
0de39516 4218 int qos = sta->flags & WPA_STA_WMM;
db149ac9
JM		 4219#else
4220 int qos = 0;
4221#endif
4222
4223 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
4224 data_len;
4225 hdr = os_zalloc(len);
4226 if (hdr == NULL) {
4227 printf("malloc() failed for i802_send_data(len=%lu)\n",
4228 (unsigned long) len);
4229 return -1;
4230 }
4231
4232 hdr->frame_control =
4233 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
4234 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
4235 if (encrypt)
4236 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
4237#if 0 /* To be enabled if qos determination is added above */
4238 if (qos) {
4239 hdr->frame_control |=
4240 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
4241 }
4242#endif
4243
4244 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
4245 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
4246 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
4247 pos = (u8 *) (hdr + 1);
4248
4249#if 0 /* To be enabled if qos determination is added above */
4250 if (qos) {
4251 /* add an empty QoS header if needed */
4252 pos[0] = 0;
4253 pos[1] = 0;
4254 pos += 2;
4255 }
4256#endif
4257
4258 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
4259 pos += sizeof(rfc1042_header);
4260 WPA_PUT_BE16(pos, ETH_P_PAE);
4261 pos += 2;
4262 memcpy(pos, data, data_len);
4263
4264 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
4265 if (res < 0) {
4266 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
4267 "failed: %d (%s)",
4268 (unsigned long) len, errno, strerror(errno));
4269 }
7bf12757 4270 os_free(hdr);
db149ac9
JM		 4271
4272 return res;
4273}
4274
a8d6ffa4 4275
7e76ee9c
JM		 4276static u32 sta_flags_nl80211(int flags)
4277{
4278 u32 f = 0;
4279
0de39516 4280 if (flags & WPA_STA_AUTHORIZED)
7e76ee9c 4281 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
0de39516 4282 if (flags & WPA_STA_WMM)
7e76ee9c 4283 f |= BIT(NL80211_STA_FLAG_WME);
0de39516 4284 if (flags & WPA_STA_SHORT_PREAMBLE)
7e76ee9c 4285 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
0de39516 4286 if (flags & WPA_STA_MFP)
7e76ee9c
JM		 4287 f |= BIT(NL80211_STA_FLAG_MFP);
4288
4289 return f;
4290}
4291
4292
3234cba4
JM		 4293static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
4294 int total_flags,
4c32757d 4295 int flags_or, int flags_and)
a8d6ffa4 4296{
a2e40bb6
FF		 4297 struct i802_bss *bss = priv;
4298 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 4299 struct nl_msg *msg, *flags = NULL;
7e76ee9c 4300 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 4301
4302 msg = nlmsg_alloc();
4303 if (!msg)
4304 return -ENOMEM;
4305
4306 flags = nlmsg_alloc();
4307 if (!flags) {
4308 nlmsg_free(msg);
4309 return -ENOMEM;
4310 }
4311
4312 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4313 0, NL80211_CMD_SET_STATION, 0);
4314
4315 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 4316 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 4317 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4318
7e76ee9c
JM		 4319 /*
4320 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
4321 * can be removed eventually.
4322 */
0de39516 4323 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 4324 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
4325
0de39516 4326 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 4327 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
4328
0de39516 4329 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 4330 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
4331
0de39516 4332 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 4333 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
4334
4335 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
4336 goto nla_put_failure;
4337
7e76ee9c
JM		 4338 os_memset(&upd, 0, sizeof(upd));
4339 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
4340 upd.set = sta_flags_nl80211(flags_or);
4341 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4342
a8d6ffa4
JM		 4343 nlmsg_free(flags);
4344
4345 return send_and_recv_msgs(drv, msg, NULL, NULL);
4346 nla_put_failure:
4347 nlmsg_free(flags);
4348 return -ENOBUFS;
4349}
4350
0915d02c 4351
1581b38b
JM		 4352static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
4353 struct wpa_driver_associate_params *params)
4354{
046b26a2
JM		 4355 if (params->p2p)
4356 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
4357 "group (GO)");
a2e40bb6 4358 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode) ||
f019981a 4359 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 4360 nl80211_remove_monitor_interface(drv);
1581b38b 4361 return -1;
0915d02c 4362 }
1581b38b
JM		 4363
4364 /* TODO: setup monitor interface (and add code somewhere to remove this
4365 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
1581b38b
JM		 4366
4367 return 0;
4368}
1581b38b
JM		 4369
4370
5cc4d64b
JM		 4371static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
4372{
4373 struct nl_msg *msg;
4374 int ret = -1;
4375
4376 msg = nlmsg_alloc();
4377 if (!msg)
4378 return -1;
4379
4380 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4381 NL80211_CMD_LEAVE_IBSS, 0);
4382 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4383 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4384 msg = NULL;
4385 if (ret) {
4386 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
4387 "(%s)", ret, strerror(-ret));
4388 goto nla_put_failure;
4389 }
4390
4391 ret = 0;
4392 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
4393
4394nla_put_failure:
4395 nlmsg_free(msg);
4396 return ret;
4397}
4398
4399
4400static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
4401 struct wpa_driver_associate_params *params)
4402{
4403 struct nl_msg *msg;
4404 int ret = -1;
4405 int count = 0;
4406
4407 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
4408
a2e40bb6 4409 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode)) {
5cc4d64b
JM		 4410 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
4411 "IBSS mode");
4412 return -1;
4413 }
4414
4415retry:
4416 msg = nlmsg_alloc();
4417 if (!msg)
4418 return -1;
4419
4420 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4421 NL80211_CMD_JOIN_IBSS, 0);
4422 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4423
4424 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
4425 goto nla_put_failure;
4426
4427 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4428 params->ssid, params->ssid_len);
4429 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4430 params->ssid);
4431 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4432 drv->ssid_len = params->ssid_len;
4433
4434 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4435 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4436
4437 ret = nl80211_set_conn_keys(params, msg);
4438 if (ret)
4439 goto nla_put_failure;
4440
a95795ad
JM		 4441 if (params->wpa_ie) {
4442 wpa_hexdump(MSG_DEBUG,
4443 " * Extra IEs for Beacon/Probe Response frames",
4444 params->wpa_ie, params->wpa_ie_len);
4445 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4446 params->wpa_ie);
4447 }
4448
5cc4d64b
JM		 4449 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4450 msg = NULL;
4451 if (ret) {
4452 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
4453 ret, strerror(-ret));
4454 count++;
4455 if (ret == -EALREADY && count == 1) {
4456 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
4457 "forced leave");
4458 nl80211_leave_ibss(drv);
4459 nlmsg_free(msg);
4460 goto retry;
4461 }
4462
4463 goto nla_put_failure;
4464 }
4465 ret = 0;
4466 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
4467
4468nla_put_failure:
4469 nlmsg_free(msg);
4470 return ret;
4471}
4472
4473
cfaab580
ZY		 4474static int wpa_driver_nl80211_connect(
4475 struct wpa_driver_nl80211_data *drv,
4476 struct wpa_driver_associate_params *params)
4477{
4478 struct nl_msg *msg;
4479 enum nl80211_auth_type type;
4480 int ret = 0;
4481
4482 msg = nlmsg_alloc();
4483 if (!msg)
4484 return -1;
4485
4486 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
4487 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4488 NL80211_CMD_CONNECT, 0);
4489
4490 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4491 if (params->bssid) {
4492 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4493 MAC2STR(params->bssid));
4494 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4495 }
4496 if (params->freq) {
4497 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4499 }
4500 if (params->ssid) {
4501 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4502 params->ssid, params->ssid_len);
4503 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4504 params->ssid);
4505 if (params->ssid_len > sizeof(drv->ssid))
4506 goto nla_put_failure;
4507 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4508 drv->ssid_len = params->ssid_len;
4509 }
4510 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
4511 if (params->wpa_ie)
4512 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4513 params->wpa_ie);
4514
abd9fafa 4515 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 4516 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 4517 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 4518 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 4519 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 4520 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 4521 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 4522 type = NL80211_AUTHTYPE_FT;
4523 else
4524 goto nla_put_failure;
4525
4526 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4527 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
4528
4529 if (params->wpa_ie && params->wpa_ie_len) {
4530 enum nl80211_wpa_versions ver;
4531
4532 if (params->wpa_ie[0] == WLAN_EID_RSN)
4533 ver = NL80211_WPA_VERSION_2;
4534 else
4535 ver = NL80211_WPA_VERSION_1;
4536
4537 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
4538 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
4539 }
4540
4541 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 4542 int cipher;
cfaab580
ZY		 4543
4544 switch (params->pairwise_suite) {
4545 case CIPHER_WEP40:
4546 cipher = WLAN_CIPHER_SUITE_WEP40;
4547 break;
4548 case CIPHER_WEP104:
4549 cipher = WLAN_CIPHER_SUITE_WEP104;
4550 break;
4551 case CIPHER_CCMP:
4552 cipher = WLAN_CIPHER_SUITE_CCMP;
4553 break;
4554 case CIPHER_TKIP:
4555 default:
4556 cipher = WLAN_CIPHER_SUITE_TKIP;
4557 break;
4558 }
4559 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
4560 }
4561
4562 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 4563 int cipher;
cfaab580
ZY		 4564
4565 switch (params->group_suite) {
4566 case CIPHER_WEP40:
4567 cipher = WLAN_CIPHER_SUITE_WEP40;
4568 break;
4569 case CIPHER_WEP104:
4570 cipher = WLAN_CIPHER_SUITE_WEP104;
4571 break;
4572 case CIPHER_CCMP:
4573 cipher = WLAN_CIPHER_SUITE_CCMP;
4574 break;
4575 case CIPHER_TKIP:
4576 default:
4577 cipher = WLAN_CIPHER_SUITE_TKIP;
4578 break;
4579 }
4580 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
4581 }
4582
4583 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
4584 params->key_mgmt_suite == KEY_MGMT_PSK) {
4585 int mgmt = WLAN_AKM_SUITE_PSK;
4586
4587 switch (params->key_mgmt_suite) {
4588 case KEY_MGMT_802_1X:
4589 mgmt = WLAN_AKM_SUITE_8021X;
4590 break;
4591 case KEY_MGMT_PSK:
4592 default:
4593 mgmt = WLAN_AKM_SUITE_PSK;
4594 break;
4595 }
4596 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
4597 }
4598
4599 ret = nl80211_set_conn_keys(params, msg);
4600 if (ret)
4601 goto nla_put_failure;
4602
4603 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4604 msg = NULL;
4605 if (ret) {
4606 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
4607 "(%s)", ret, strerror(-ret));
4608 goto nla_put_failure;
4609 }
4610 ret = 0;
4611 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
4612
4613nla_put_failure:
4614 nlmsg_free(msg);
4615 return ret;
4616
4617}
4618
4619
c2a04078
JM		 4620static int wpa_driver_nl80211_associate(
4621 void *priv, struct wpa_driver_associate_params *params)
4622{
a2e40bb6
FF		 4623 struct i802_bss *bss = priv;
4624 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 4625 int ret = -1;
4626 struct nl_msg *msg;
4627
5cc4d64b 4628 if (params->mode == IEEE80211_MODE_AP)
1581b38b 4629 return wpa_driver_nl80211_ap(drv, params);
1581b38b 4630
5cc4d64b
JM		 4631 if (params->mode == IEEE80211_MODE_IBSS)
4632 return wpa_driver_nl80211_ibss(drv, params);
4633
4a867032 4634 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
a2e40bb6 4635 if (wpa_driver_nl80211_set_mode(priv, params->mode) < 0)
4a867032 4636 return -1;
cfaab580 4637 return wpa_driver_nl80211_connect(drv, params);
4a867032 4638 }
cfaab580 4639
c2a04078
JM		 4640 drv->associated = 0;
4641
4642 msg = nlmsg_alloc();
4643 if (!msg)
4644 return -1;
4645
4646 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
4647 drv->ifindex);
4648 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4649 NL80211_CMD_ASSOCIATE, 0);
4650
4651 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4652 if (params->bssid) {
4653 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4654 MAC2STR(params->bssid));
4655 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4656 }
4657 if (params->freq) {
4658 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4659 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 4660 drv->assoc_freq = params->freq;
4661 } else
4662 drv->assoc_freq = 0;
c2a04078
JM		 4663 if (params->ssid) {
4664 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4665 params->ssid, params->ssid_len);
4666 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4667 params->ssid);
fd05d64e
JM		 4668 if (params->ssid_len > sizeof(drv->ssid))
4669 goto nla_put_failure;
4670 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4671 drv->ssid_len = params->ssid_len;
c2a04078
JM		 4672 }
4673 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
4674 if (params->wpa_ie)
4675 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4676 params->wpa_ie);
4677
aca01605
JM		 4678 if (params->pairwise_suite != CIPHER_NONE) {
4679 int cipher;
4680
4681 switch (params->pairwise_suite) {
4682 case CIPHER_WEP40:
4683 cipher = WLAN_CIPHER_SUITE_WEP40;
4684 break;
4685 case CIPHER_WEP104:
4686 cipher = WLAN_CIPHER_SUITE_WEP104;
4687 break;
4688 case CIPHER_CCMP:
4689 cipher = WLAN_CIPHER_SUITE_CCMP;
4690 break;
4691 case CIPHER_TKIP:
4692 default:
4693 cipher = WLAN_CIPHER_SUITE_TKIP;
4694 break;
4695 }
79c3124c 4696 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 4697 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
4698 }
4699
4700 if (params->group_suite != CIPHER_NONE) {
4701 int cipher;
4702
4703 switch (params->group_suite) {
4704 case CIPHER_WEP40:
4705 cipher = WLAN_CIPHER_SUITE_WEP40;
4706 break;
4707 case CIPHER_WEP104:
4708 cipher = WLAN_CIPHER_SUITE_WEP104;
4709 break;
4710 case CIPHER_CCMP:
4711 cipher = WLAN_CIPHER_SUITE_CCMP;
4712 break;
4713 case CIPHER_TKIP:
4714 default:
4715 cipher = WLAN_CIPHER_SUITE_TKIP;
4716 break;
4717 }
79c3124c 4718 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 4719 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
4720 }
4721
e572fa33
JM		 4722#ifdef CONFIG_IEEE80211W
4723 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
4724 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
4725#endif /* CONFIG_IEEE80211W */
4726
01652550
JM		 4727 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
4728
62fa124c
JM		 4729 if (params->prev_bssid) {
4730 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
4731 MAC2STR(params->prev_bssid));
4732 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
4733 params->prev_bssid);
4734 }
4735
046b26a2
JM		 4736 if (params->p2p)
4737 wpa_printf(MSG_DEBUG, " * P2P group");
4738
c2a04078
JM		 4739 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4740 msg = NULL;
4741 if (ret) {
4742 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
4743 "(%s)", ret, strerror(-ret));
8856462d 4744 nl80211_dump_scan(drv);
c2a04078
JM		 4745 goto nla_put_failure;
4746 }
4747 ret = 0;
4748 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
4749 "successfully");
4750
4751nla_put_failure:
4752 nlmsg_free(msg);
4753 return ret;
4754}
3f5285e8
JM		 4755
4756
ad1e68e6
JM		 4757static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
4758 int ifindex, int mode)
3f5285e8 4759{
3f5285e8 4760 struct nl_msg *msg;
ad1e68e6
JM		 4761 int ret = -ENOBUFS;
4762
4763 msg = nlmsg_alloc();
4764 if (!msg)
4765 return -ENOMEM;
4766
4767 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4768 0, NL80211_CMD_SET_INTERFACE, 0);
4769 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4770 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
4771
4772 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4773 if (!ret)
4774 return 0;
4775nla_put_failure:
4776 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
4777 " %d (%s)", ifindex, mode, ret, strerror(-ret));
4778 return ret;
4779}
4780
4781
4782static int wpa_driver_nl80211_set_mode(void *priv, int mode)
4783{
a2e40bb6
FF		 4784 struct i802_bss *bss = priv;
4785 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 4786 int ret = -1;
1581b38b 4787 int nlmode;
26af9dca 4788 int i;
1581b38b
JM		 4789
4790 switch (mode) {
4791 case 0:
4792 nlmode = NL80211_IFTYPE_STATION;
4793 break;
4794 case 1:
4795 nlmode = NL80211_IFTYPE_ADHOC;
4796 break;
4797 case 2:
4798 nlmode = NL80211_IFTYPE_AP;
4799 break;
4800 default:
4801 return -1;
4802 }
3f5285e8 4803
ad1e68e6
JM		 4804 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
4805 drv->nlmode = nlmode;
460456f8
JM		 4806 ret = 0;
4807 goto done;
ad1e68e6 4808 }
3f5285e8 4809
460456f8 4810 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 4811 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
4812 "requested mode - ignore error");
460456f8
JM		 4813 ret = 0;
4814 goto done; /* Already in the requested mode */
4815 }
3f5285e8 4816
3f5285e8
JM		 4817 /* mac80211 doesn't allow mode changes while the device is up, so
4818 * take the device down, try to set the mode again, and bring the
4819 * device back up.
4820 */
26af9dca
JM		 4821 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
4822 "interface down");
4823 for (i = 0; i < 10; i++) {
4824 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0) ==
4825 0) {
4826 /* Try to set the mode again while the interface is
4827 * down */
4828 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
4829 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname,
4830 1))
4831 ret = -1;
4832 if (!ret)
4833 break;
4834 } else
4835 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
4836 "interface down");
4837 os_sleep(0, 100000);
3f5285e8
JM		 4838 }
4839
c6e8e8e4
JM		 4840 if (!ret) {
4841 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
4842 "interface is down");
ad1e68e6 4843 drv->nlmode = nlmode;
c6e8e8e4 4844 }
ad1e68e6 4845
460456f8 4846done:
460456f8
JM		 4847 if (!ret && nlmode == NL80211_IFTYPE_AP) {
4848 /* Setup additional AP mode functionality if needed */
4849 if (drv->monitor_ifidx < 0 &&
4850 nl80211_create_monitor_interface(drv))
4851 return -1;
4852 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
4853 /* Remove additional AP mode functionality */
4854 nl80211_remove_monitor_interface(drv);
a2e40bb6 4855 bss->beacon_set = 0;
460456f8 4856 }
460456f8 4857
c6e8e8e4
JM		 4858 if (ret)
4859 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
4860 "from %d failed", nlmode, drv->nlmode);
4861
3f5285e8
JM		 4862 return ret;
4863}
4864
4865
3f5285e8
JM		 4866static int wpa_driver_nl80211_get_capa(void *priv,
4867 struct wpa_driver_capa *capa)
4868{
a2e40bb6
FF		 4869 struct i802_bss *bss = priv;
4870 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 4871 if (!drv->has_capability)
4872 return -1;
4873 os_memcpy(capa, &drv->capa, sizeof(*capa));
4874 return 0;
4875}
4876
4877
4878static int wpa_driver_nl80211_set_operstate(void *priv, int state)
4879{
a2e40bb6
FF		 4880 struct i802_bss *bss = priv;
4881 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 4882
4883 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
4884 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
4885 drv->operstate = state;
08063178 4886 return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
e2d02c29 4887 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 4888}
4889
01652550
JM		 4890
4891static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
4892{
a2e40bb6
FF		 4893 struct i802_bss *bss = priv;
4894 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 4895 struct nl_msg *msg;
4896 struct nl80211_sta_flag_update upd;
4897
4898 msg = nlmsg_alloc();
4899 if (!msg)
4900 return -ENOMEM;
4901
4902 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4903 0, NL80211_CMD_SET_STATION, 0);
4904
4905 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 4906 if_nametoindex(bss->ifname));
01652550
JM		 4907 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
4908
4909 os_memset(&upd, 0, sizeof(upd));
4910 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
4911 if (authorized)
4912 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
4913 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4914
4915 return send_and_recv_msgs(drv, msg, NULL, NULL);
4916 nla_put_failure:
4917 return -ENOBUFS;
4918}
4919
3f5285e8 4920
c5121837
JM		 4921#ifdef HOSTAPD
4922
c5121837
JM		 4923static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4924{
4925 int i;
4926 int *old;
4927
4928 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
4929 ifidx);
4930 for (i = 0; i < drv->num_if_indices; i++) {
4931 if (drv->if_indices[i] == 0) {
4932 drv->if_indices[i] = ifidx;
4933 return;
4934 }
4935 }
4936
4937 if (drv->if_indices != drv->default_if_indices)
4938 old = drv->if_indices;
4939 else
4940 old = NULL;
4941
7bf12757
JM		 4942 drv->if_indices = os_realloc(old,
4943 sizeof(int) * (drv->num_if_indices + 1));
c5121837
JM		 4944 if (!drv->if_indices) {
4945 if (!old)
4946 drv->if_indices = drv->default_if_indices;
4947 else
4948 drv->if_indices = old;
4949 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
4950 "interfaces");
4951 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
4952 return;
0ab7a701
B		 4953 } else if (!old)
4954 os_memcpy(drv->if_indices, drv->default_if_indices,
4955 sizeof(drv->default_if_indices));
c5121837
JM		 4956 drv->if_indices[drv->num_if_indices] = ifidx;
4957 drv->num_if_indices++;
4958}
4959
4960
4961static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4962{
4963 int i;
4964
4965 for (i = 0; i < drv->num_if_indices; i++) {
4966 if (drv->if_indices[i] == ifidx) {
4967 drv->if_indices[i] = 0;
4968 break;
4969 }
4970 }
4971}
4972
4973
4974static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4975{
4976 int i;
4977
4978 for (i = 0; i < drv->num_if_indices; i++)
4979 if (drv->if_indices[i] == ifidx)
4980 return 1;
4981
4982 return 0;
4983}
4984
4985
c5121837
JM		 4986static inline int min_int(int a, int b)
4987{
4988 if (a < b)
4989 return a;
4990 return b;
4991}
4992
4993
4994static int get_key_handler(struct nl_msg *msg, void *arg)
4995{
4996 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4997 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4998
4999 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5000 genlmsg_attrlen(gnlh, 0), NULL);
5001
5002 /*
5003 * TODO: validate the key index and mac address!
5004 * Otherwise, there's a race condition as soon as
5005 * the kernel starts sending key notifications.
5006 */
5007
5008 if (tb[NL80211_ATTR_KEY_SEQ])
5009 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
5010 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
5011 return NL_SKIP;
5012}
5013
5014
5015static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
5016 int idx, u8 *seq)
5017{
a2e40bb6
FF		 5018 struct i802_bss *bss = priv;
5019 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5020 struct nl_msg *msg;
5021
5022 msg = nlmsg_alloc();
5023 if (!msg)
5024 return -ENOMEM;
5025
5026 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5027 0, NL80211_CMD_GET_KEY, 0);
5028
5029 if (addr)
5030 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5031 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
5032 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
5033
5034 memset(seq, 0, 6);
5035
5036 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
5037 nla_put_failure:
5038 return -ENOBUFS;
5039}
5040
5041
5042static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
5043 int mode)
5044{
a2e40bb6
FF		 5045 struct i802_bss *bss = priv;
5046 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5047 struct nl_msg *msg;
5048 u8 rates[NL80211_MAX_SUPP_RATES];
5049 u8 rates_len = 0;
5050 int i;
5051
5052 msg = nlmsg_alloc();
5053 if (!msg)
5054 return -ENOMEM;
5055
5056 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5057 NL80211_CMD_SET_BSS, 0);
5058
5059 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
5060 rates[rates_len++] = basic_rates[i] / 5;
5061
5062 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5063
a2e40bb6 5064 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5065
5066 return send_and_recv_msgs(drv, msg, NULL, NULL);
5067 nla_put_failure:
5068 return -ENOBUFS;
5069}
5070
e3802622
JM		 5071#endif /* HOSTAPD */
5072
c5121837 5073
c5121837
JM		 5074/* Set kernel driver on given frequency (MHz) */
5075static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
5076{
a2e40bb6
FF		 5077 struct i802_bss *bss = priv;
5078 struct wpa_driver_nl80211_data *drv = bss->drv;
f019981a
JM		 5079 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
5080 freq->sec_channel_offset);
c5121837
JM		 5081}
5082
5083
e3802622
JM		 5084#ifdef HOSTAPD
5085
c5121837
JM		 5086static int i802_set_rts(void *priv, int rts)
5087{
a2e40bb6
FF		 5088 struct i802_bss *bss = priv;
5089 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5090 struct nl_msg *msg;
5091 int ret = -ENOBUFS;
5092 u32 val;
c5121837 5093
ad649451
JM		 5094 msg = nlmsg_alloc();
5095 if (!msg)
5096 return -ENOMEM;
c5121837 5097
ad649451
JM		 5098 if (rts >= 2347)
5099 val = (u32) -1;
5100 else
5101 val = rts;
c5121837 5102
ad649451
JM		 5103 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5104 0, NL80211_CMD_SET_WIPHY, 0);
5105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5106 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
5107
5108 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5109 if (!ret)
5110 return 0;
5111nla_put_failure:
5112 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
5113 "%d (%s)", rts, ret, strerror(-ret));
5114 return ret;
c5121837
JM		 5115}
5116
5117
5118static int i802_set_frag(void *priv, int frag)
5119{
a2e40bb6
FF		 5120 struct i802_bss *bss = priv;
5121 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5122 struct nl_msg *msg;
5123 int ret = -ENOBUFS;
5124 u32 val;
c5121837 5125
ad649451
JM		 5126 msg = nlmsg_alloc();
5127 if (!msg)
5128 return -ENOMEM;
c5121837 5129
ad649451
JM		 5130 if (frag >= 2346)
5131 val = (u32) -1;
5132 else
5133 val = frag;
c5121837 5134
ad649451
JM		 5135 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5136 0, NL80211_CMD_SET_WIPHY, 0);
5137 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5138 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
5139
5140 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5141 if (!ret)
5142 return 0;
5143nla_put_failure:
5144 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
5145 "%d: %d (%s)", frag, ret, strerror(-ret));
5146 return ret;
c5121837
JM		 5147}
5148
5149
c5121837
JM		 5150static int i802_flush(void *priv)
5151{
a2e40bb6
FF		 5152 struct i802_bss *bss = priv;
5153 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5154 struct nl_msg *msg;
5155
5156 msg = nlmsg_alloc();
5157 if (!msg)
5158 return -1;
5159
5160 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5161 0, NL80211_CMD_DEL_STATION, 0);
5162
5163 /*
5164 * XXX: FIX! this needs to flush all VLANs too
5165 */
5166 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5167 if_nametoindex(bss->ifname));
c5121837
JM		 5168
5169 return send_and_recv_msgs(drv, msg, NULL, NULL);
5170 nla_put_failure:
5171 return -ENOBUFS;
5172}
5173
5174
5175static int get_sta_handler(struct nl_msg *msg, void *arg)
5176{
5177 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5178 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5179 struct hostap_sta_driver_data *data = arg;
5180 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
5181 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
5182 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
5183 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
5184 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
5185 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
5186 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
5187 };
5188
5189 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5190 genlmsg_attrlen(gnlh, 0), NULL);
5191
5192 /*
5193 * TODO: validate the interface and mac address!
5194 * Otherwise, there's a race condition as soon as
5195 * the kernel starts sending station notifications.
5196 */
5197
5198 if (!tb[NL80211_ATTR_STA_INFO]) {
5199 wpa_printf(MSG_DEBUG, "sta stats missing!");
5200 return NL_SKIP;
5201 }
5202 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
5203 tb[NL80211_ATTR_STA_INFO],
5204 stats_policy)) {
5205 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
5206 return NL_SKIP;
5207 }
5208
5209 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
5210 data->inactive_msec =
5211 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
5212 if (stats[NL80211_STA_INFO_RX_BYTES])
5213 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
5214 if (stats[NL80211_STA_INFO_TX_BYTES])
5215 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
5216 if (stats[NL80211_STA_INFO_RX_PACKETS])
5217 data->rx_packets =
5218 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
5219 if (stats[NL80211_STA_INFO_TX_PACKETS])
5220 data->tx_packets =
5221 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
5222
5223 return NL_SKIP;
5224}
5225
5226static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
5227 const u8 *addr)
5228{
a2e40bb6
FF		 5229 struct i802_bss *bss = priv;
5230 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5231 struct nl_msg *msg;
5232
5233 os_memset(data, 0, sizeof(*data));
5234 msg = nlmsg_alloc();
5235 if (!msg)
5236 return -ENOMEM;
5237
5238 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5239 0, NL80211_CMD_GET_STATION, 0);
5240
5241 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 5242 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5243
5244 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
5245 nla_put_failure:
5246 return -ENOBUFS;
5247}
5248
5249
c5121837
JM		 5250static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
5251 int cw_min, int cw_max, int burst_time)
5252{
a2e40bb6
FF		 5253 struct i802_bss *bss = priv;
5254 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5255 struct nl_msg *msg;
5256 struct nlattr *txq, *params;
5257
5258 msg = nlmsg_alloc();
5259 if (!msg)
5260 return -1;
5261
5262 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5263 0, NL80211_CMD_SET_WIPHY, 0);
5264
a2e40bb6 5265 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5266
5267 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
5268 if (!txq)
5269 goto nla_put_failure;
5270
5271 /* We are only sending parameters for a single TXQ at a time */
5272 params = nla_nest_start(msg, 1);
5273 if (!params)
5274 goto nla_put_failure;
5275
7e3c1781
JM		 5276 switch (queue) {
5277 case 0:
5278 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
5279 break;
5280 case 1:
5281 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
5282 break;
5283 case 2:
5284 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
5285 break;
5286 case 3:
5287 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
5288 break;
5289 }
c5121837
JM		 5290 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
5291 * 32 usec, so need to convert the value here. */
5292 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
5293 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
5294 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
5295 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
5296
5297 nla_nest_end(msg, params);
5298
5299 nla_nest_end(msg, txq);
5300
5301 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5302 return 0;
5303 nla_put_failure:
5304 return -1;
5305}
5306
5307
f1bed4a7
HS		 5308static int i802_set_bss(void *priv, int cts, int preamble, int slot,
5309 int ht_opmode)
c5121837 5310{
a2e40bb6
FF		 5311 struct i802_bss *bss = priv;
5312 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5313 struct nl_msg *msg;
5314
5315 msg = nlmsg_alloc();
5316 if (!msg)
5317 return -ENOMEM;
5318
5319 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5320 NL80211_CMD_SET_BSS, 0);
5321
5322 if (cts >= 0)
5323 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5324 if (preamble >= 0)
5325 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5326 if (slot >= 0)
5327 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
f1bed4a7
HS		 5328 if (ht_opmode >= 0)
5329 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
a2e40bb6 5330 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5331
5332 return send_and_recv_msgs(drv, msg, NULL, NULL);
5333 nla_put_failure:
5334 return -ENOBUFS;
5335}
5336
5337
5338static int i802_set_cts_protect(void *priv, int value)
5339{
f1bed4a7 5340 return i802_set_bss(priv, value, -1, -1, -1);
c5121837
JM		 5341}
5342
5343
5344static int i802_set_preamble(void *priv, int value)
5345{
f1bed4a7 5346 return i802_set_bss(priv, -1, value, -1, -1);
c5121837
JM		 5347}
5348
5349
5350static int i802_set_short_slot_time(void *priv, int value)
5351{
f1bed4a7 5352 return i802_set_bss(priv, -1, -1, value, -1);
c5121837
JM		 5353}
5354
5355
c5121837
JM		 5356static int i802_set_sta_vlan(void *priv, const u8 *addr,
5357 const char *ifname, int vlan_id)
5358{
a2e40bb6
FF		 5359 struct i802_bss *bss = priv;
5360 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 5361 struct nl_msg *msg;
cd1d72c1 5362 int ret = -ENOBUFS;
c5121837
JM		 5363
5364 msg = nlmsg_alloc();
5365 if (!msg)
5366 return -ENOMEM;
5367
5368 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5369 0, NL80211_CMD_SET_STATION, 0);
5370
5371 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5372 if_nametoindex(bss->ifname));
c5121837 5373 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 5374 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 5375 if_nametoindex(ifname));
5376
cd1d72c1
JM		 5377 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5378 if (ret < 0) {
5379 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
5380 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
5381 MAC2STR(addr), ifname, vlan_id, ret,
5382 strerror(-ret));
5383 }
c5121837 5384 nla_put_failure:
cd1d72c1 5385 return ret;
c5121837
JM		 5386}
5387
5388
d38ae2ea
FF		 5389static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
5390 const char *bridge_ifname)
fbbfcbac 5391{
a2e40bb6
FF		 5392 struct i802_bss *bss = priv;
5393 struct wpa_driver_nl80211_data *drv = bss->drv;
e748062b 5394 char name[IFNAMSIZ + 1];
fbbfcbac 5395
a2e40bb6 5396 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
e748062b
JM		 5397 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
5398 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
fbbfcbac 5399 if (val) {
d38ae2ea
FF		 5400 if (!if_nametoindex(name)) {
5401 if (nl80211_create_iface(drv, name,
5402 NL80211_IFTYPE_AP_VLAN,
5403 NULL, 1) < 0)
5404 return -1;
5405 if (bridge_ifname &&
5406 linux_br_add_if(drv->ioctl_sock, bridge_ifname,
5407 name) < 0)
5408 return -1;
5409 }
34f2f814 5410 linux_set_iface_flags(drv->ioctl_sock, name, 1);
fbbfcbac
FF		 5411 return i802_set_sta_vlan(priv, addr, name, 0);
5412 } else {
a2e40bb6 5413 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
fbbfcbac
FF		 5414 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
5415 name);
5416 }
5417}
5418
5419
f1bed4a7
HS		 5420static int i802_set_ht_params(void *priv, const u8 *ht_capab,
5421 size_t ht_capab_len, const u8 *ht_oper,
5422 size_t ht_oper_len)
5423{
5424 if (ht_oper_len >= 6) {
5425 /* ht opmode uses 16bit in octet 5 & 6 */
5426 u16 ht_opmode = le_to_host16(((u16 *) ht_oper)[2]);
5427 return i802_set_bss(priv, -1, -1, -1, ht_opmode);
5428 } else
5429 return -1;
5430}
5431
5432
c5121837
JM		 5433static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
5434{
5435 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5436 struct sockaddr_ll lladdr;
5437 unsigned char buf[3000];
5438 int len;
5439 socklen_t fromlen = sizeof(lladdr);
5440
5441 len = recvfrom(sock, buf, sizeof(buf), 0,
5442 (struct sockaddr *)&lladdr, &fromlen);
5443 if (len < 0) {
5444 perror("recv");
5445 return;
5446 }
5447
baac6490
JM		 5448 if (have_ifidx(drv, lladdr.sll_ifindex))
5449 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
c5121837
JM		 5450}
5451
5452
c5121837
JM		 5453static int i802_get_inact_sec(void *priv, const u8 *addr)
5454{
5455 struct hostap_sta_driver_data data;
5456 int ret;
5457
5458 data.inactive_msec = (unsigned long) -1;
5459 ret = i802_read_sta_data(priv, &data, addr);
5460 if (ret || data.inactive_msec == (unsigned long) -1)
5461 return -1;
5462 return data.inactive_msec / 1000;
5463}
5464
5465
5466static int i802_sta_clear_stats(void *priv, const u8 *addr)
5467{
5468#if 0
5469 /* TODO */
5470#endif
5471 return 0;
5472}
5473
5474
731723a5
JM		 5475static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
5476 int reason)
c5121837 5477{
a2e40bb6 5478 struct i802_bss *bss = priv;
c5121837
JM		 5479 struct ieee80211_mgmt mgmt;
5480
5481 memset(&mgmt, 0, sizeof(mgmt));
5482 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
5483 WLAN_FC_STYPE_DEAUTH);
5484 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 5485 memcpy(mgmt.sa, own_addr, ETH_ALEN);
5486 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 5487 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 5488 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 5489 IEEE80211_HDRLEN +
5490 sizeof(mgmt.u.deauth));
c5121837
JM		 5491}
5492
5493
731723a5
JM		 5494static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
5495 int reason)
c5121837 5496{
a2e40bb6 5497 struct i802_bss *bss = priv;
c5121837
JM		 5498 struct ieee80211_mgmt mgmt;
5499
5500 memset(&mgmt, 0, sizeof(mgmt));
5501 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
5502 WLAN_FC_STYPE_DISASSOC);
5503 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 5504 memcpy(mgmt.sa, own_addr, ETH_ALEN);
5505 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 5506 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 5507 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 5508 IEEE80211_HDRLEN +
5509 sizeof(mgmt.u.disassoc));
c5121837
JM		 5510}
5511
5512
94627f6c
JM		 5513static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
5514 const char *brname, const char *ifname)
5515{
5516 int ifindex;
5517 char in_br[IFNAMSIZ];
5518
5519 os_strlcpy(drv->brname, brname, IFNAMSIZ);
5520 ifindex = if_nametoindex(brname);
5521 if (ifindex == 0) {
5522 /*
5523 * Bridge was configured, but the bridge device does
5524 * not exist. Try to add it now.
5525 */
5526 if (linux_br_add(drv->ioctl_sock, brname) < 0) {
5527 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
5528 "bridge interface %s: %s",
5529 brname, strerror(errno));
5530 return -1;
5531 }
5532 drv->added_bridge = 1;
5533 add_ifidx(drv, if_nametoindex(brname));
5534 }
5535
5536 if (linux_br_get(in_br, ifname) == 0) {
5537 if (os_strcmp(in_br, brname) == 0)
5538 return 0; /* already in the bridge */
5539
5540 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
5541 "bridge %s", ifname, in_br);
5542 if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
5543 wpa_printf(MSG_ERROR, "nl80211: Failed to "
5544 "remove interface %s from bridge "
5545 "%s: %s",
5546 ifname, brname, strerror(errno));
5547 return -1;
5548 }
5549 }
5550
5551 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
5552 ifname, brname);
5553 if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
5554 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
5555 "into bridge %s: %s",
5556 ifname, brname, strerror(errno));
5557 return -1;
5558 }
5559 drv->added_if_into_bridge = 1;
5560
5561 return 0;
5562}
5563
5564
92f475b4
JM		 5565static void *i802_init(struct hostapd_data *hapd,
5566 struct wpa_init_params *params)
c5121837
JM		 5567{
5568 struct wpa_driver_nl80211_data *drv;
a2e40bb6 5569 struct i802_bss *bss;
c5121837 5570 size_t i;
94627f6c
JM		 5571 char brname[IFNAMSIZ];
5572 int ifindex, br_ifindex;
5573 int br_added = 0;
c5121837 5574
f2ed8023 5575 bss = wpa_driver_nl80211_init(hapd, params->ifname, NULL);
a2e40bb6 5576 if (bss == NULL)
c5121837 5577 return NULL;
c5121837 5578
a2e40bb6 5579 drv = bss->drv;
0382097e 5580 drv->nlmode = NL80211_IFTYPE_AP;
94627f6c
JM		 5581 if (linux_br_get(brname, params->ifname) == 0) {
5582 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
5583 params->ifname, brname);
5584 br_ifindex = if_nametoindex(brname);
5585 } else {
5586 brname[0] = '\0';
5587 br_ifindex = 0;
5588 }
5589
c5121837
JM		 5590 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
5591 drv->if_indices = drv->default_if_indices;
92f475b4 5592 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 5593 if (params->bridge[i]) {
5594 ifindex = if_nametoindex(params->bridge[i]);
5595 if (ifindex)
5596 add_ifidx(drv, ifindex);
5597 if (ifindex == br_ifindex)
5598 br_added = 1;
5599 }
c5121837 5600 }
94627f6c
JM		 5601 if (!br_added && br_ifindex &&
5602 (params->num_bridge == 0 || !params->bridge[0]))
5603 add_ifidx(drv, br_ifindex);
c5121837 5604
ad1e68e6
JM		 5605 /* start listening for EAPOL on the default AP interface */
5606 add_ifidx(drv, drv->ifindex);
5607
a2e40bb6 5608 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
6980c191 5609 goto failed;
ad1e68e6 5610
6980c191 5611 if (params->bssid) {
a2e40bb6 5612 if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
2ac9688e 5613 params->bssid))
460456f8
JM		 5614 goto failed;
5615 }
ad1e68e6 5616
a2e40bb6 5617 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_AP)) {
ad1e68e6 5618 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 5619 "into AP mode", bss->ifname);
bbaf0837 5620 goto failed;
ad1e68e6
JM		 5621 }
5622
94627f6c
JM		 5623 if (params->num_bridge && params->bridge[0] &&
5624 i802_check_bridge(drv, params->bridge[0], params->ifname) < 0)
5625 goto failed;
5626
a2e40bb6 5627 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
bbaf0837 5628 goto failed;
ad1e68e6
JM		 5629
5630 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
5631 if (drv->eapol_sock < 0) {
5632 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 5633 goto failed;
ad1e68e6
JM		 5634 }
5635
5636 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
5637 {
5638 printf("Could not register read socket for eapol\n");
c5121837 5639 goto failed;
ad1e68e6
JM		 5640 }
5641
a2e40bb6 5642 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
bbaf0837 5643 goto failed;
c5121837 5644
a2e40bb6 5645 return bss;
c5121837
JM		 5646
5647failed:
460456f8 5648 nl80211_remove_monitor_interface(drv);
23970868
JM		 5649 rfkill_deinit(drv->rfkill);
5650 netlink_deinit(drv->netlink);
c5121837
JM		 5651 if (drv->ioctl_sock >= 0)
5652 close(drv->ioctl_sock);
c5121837
JM		 5653
5654 genl_family_put(drv->nl80211);
5655 nl_cache_free(drv->nl_cache);
a65a9aed 5656 nl80211_handle_destroy(drv->nl_handle);
c5121837 5657 nl_cb_put(drv->nl_cb);
23970868 5658 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
c5121837 5659
bbaf0837
JM		 5660 os_free(drv);
5661 return NULL;
5662}
c5121837 5663
c5121837 5664
bbaf0837
JM		 5665static void i802_deinit(void *priv)
5666{
5667 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 5668}
5669
5670#endif /* HOSTAPD */
5671
5672
22a7c9d7
JM		 5673static enum nl80211_iftype wpa_driver_nl80211_if_type(
5674 enum wpa_driver_if_type type)
5675{
5676 switch (type) {
5677 case WPA_IF_STATION:
9f51b113 5678 return NL80211_IFTYPE_STATION;
75bde05d
JM		 5679 case WPA_IF_P2P_CLIENT:
5680 case WPA_IF_P2P_GROUP:
9f51b113 5681 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 5682 case WPA_IF_AP_VLAN:
5683 return NL80211_IFTYPE_AP_VLAN;
5684 case WPA_IF_AP_BSS:
5685 return NL80211_IFTYPE_AP;
9f51b113
JB		 5686 case WPA_IF_P2P_GO:
5687 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 5688 }
5689 return -1;
5690}
5691
5692
482856c8
JM		 5693#ifdef CONFIG_P2P
5694
f2ed8023
JM		 5695static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
5696{
5697 struct wpa_driver_nl80211_data *drv;
5698 dl_list_for_each(drv, &global->interfaces,
5699 struct wpa_driver_nl80211_data, list) {
5700 if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
5701 return 1;
5702 }
5703 return 0;
5704}
5705
5706
5707static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
5708 u8 *new_addr)
5709{
5710 unsigned int idx;
5711
5712 if (!drv->global)
5713 return -1;
5714
5715 os_memcpy(new_addr, drv->addr, ETH_ALEN);
5716 for (idx = 0; idx < 64; idx++) {
5717 new_addr[0] = drv->addr[0] | 0x02;
5718 new_addr[0] ^= idx << 2;
5719 if (!nl80211_addr_in_use(drv->global, new_addr))
5720 break;
5721 }
5722 if (idx == 64)
5723 return -1;
5724
5725 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
5726 MACSTR, MAC2STR(new_addr));
5727
5728 return 0;
5729}
5730
482856c8
JM		 5731#endif /* CONFIG_P2P */
5732
f2ed8023 5733
7ab68865 5734static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 5735 const char *ifname, const u8 *addr,
f3585c8a
JM		 5736 void *bss_ctx, void **drv_priv,
5737 char *force_ifname, u8 *if_addr)
22a7c9d7 5738{
a2e40bb6
FF		 5739 struct i802_bss *bss = priv;
5740 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 5741 int ifidx;
5742#ifdef HOSTAPD
a2e40bb6 5743 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 5744
5745 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 5746 new_bss = os_zalloc(sizeof(*new_bss));
5747 if (new_bss == NULL)
22a7c9d7
JM		 5748 return -1;
5749 }
5750#endif /* HOSTAPD */
5751
f3585c8a
JM		 5752 if (addr)
5753 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 5754 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 5755 wpa_driver_nl80211_if_type(type), addr,
5756 0);
22a7c9d7
JM		 5757 if (ifidx < 0) {
5758#ifdef HOSTAPD
a2e40bb6 5759 os_free(new_bss);
22a7c9d7
JM		 5760#endif /* HOSTAPD */
5761 return -1;
5762 }
5763
f3585c8a 5764 if (!addr &&
c55f774d
JM		 5765 linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0) {
5766 nl80211_remove_iface(drv, ifidx);
f3585c8a 5767 return -1;
c55f774d
JM		 5768 }
5769
5770#ifdef CONFIG_P2P
5771 if (!addr &&
5772 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
5773 type == WPA_IF_P2P_GO)) {
5774 /* Enforce unique P2P Interface Address */
5775 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
5776
5777 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr)
5778 < 0 ||
5779 linux_get_ifhwaddr(drv->ioctl_sock, ifname, new_addr) < 0)
5780 {
5781 nl80211_remove_iface(drv, ifidx);
5782 return -1;
5783 }
5784 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
5785 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
5786 "for P2P group interface");
f2ed8023 5787 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 5788 nl80211_remove_iface(drv, ifidx);
5789 return -1;
5790 }
c55f774d
JM		 5791 if (linux_set_ifhwaddr(drv->ioctl_sock, ifname,
5792 new_addr) < 0) {
5793 nl80211_remove_iface(drv, ifidx);
5794 return -1;
5795 }
5796 os_memcpy(if_addr, new_addr, ETH_ALEN);
5797 }
5798 }
5799#endif /* CONFIG_P2P */
f3585c8a 5800
22a7c9d7
JM		 5801#ifdef HOSTAPD
5802 if (type == WPA_IF_AP_BSS) {
34f2f814
JM		 5803 if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
5804 nl80211_remove_iface(drv, ifidx);
07179987 5805 os_free(new_bss);
22a7c9d7
JM		 5806 return -1;
5807 }
a2e40bb6
FF		 5808 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
5809 new_bss->ifindex = ifidx;
5810 new_bss->drv = drv;
5811 new_bss->next = drv->first_bss.next;
5812 drv->first_bss.next = new_bss;
5813 if (drv_priv)
5814 *drv_priv = new_bss;
22a7c9d7
JM		 5815 }
5816#endif /* HOSTAPD */
5817
5818 return 0;
5819}
5820
5821
5822static int wpa_driver_nl80211_if_remove(void *priv,
5823 enum wpa_driver_if_type type,
5824 const char *ifname)
5825{
a2e40bb6
FF		 5826 struct i802_bss *bss = priv;
5827 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 5828 int ifindex = if_nametoindex(ifname);
5829
e748062b
JM		 5830 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
5831 __func__, type, ifname, ifindex);
5832 if (ifindex <= 0)
5833 return -1;
22a7c9d7
JM		 5834 nl80211_remove_iface(drv, ifindex);
5835
5836#ifdef HOSTAPD
a2e40bb6
FF		 5837 if (type != WPA_IF_AP_BSS)
5838 return 0;
5839
5840 if (bss != &drv->first_bss) {
8546ea19 5841 struct i802_bss *tbss;
a2e40bb6 5842
8546ea19
JM		 5843 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
5844 if (tbss->next == bss) {
5845 tbss->next = bss->next;
5846 os_free(bss);
5847 bss = NULL;
5848 break;
5849 }
22a7c9d7 5850 }
8546ea19
JM		 5851 if (bss)
5852 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
5853 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 5854 }
5855#endif /* HOSTAPD */
5856
5857 return 0;
5858}
5859
5860
55777702
JM		 5861static int cookie_handler(struct nl_msg *msg, void *arg)
5862{
5863 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5864 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5865 u64 *cookie = arg;
5866 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5867 genlmsg_attrlen(gnlh, 0), NULL);
5868 if (tb[NL80211_ATTR_COOKIE])
5869 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
5870 return NL_SKIP;
5871}
5872
5873
9884f9cc 5874static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 5875 unsigned int freq, unsigned int wait,
5876 const u8 *buf, size_t buf_len,
5877 u64 *cookie_out)
9884f9cc
JB		 5878{
5879 struct nl_msg *msg;
5880 u64 cookie;
5881 int ret = -1;
5882
5883 msg = nlmsg_alloc();
5884 if (!msg)
5885 return -1;
5886
5887 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5888 NL80211_CMD_FRAME, 0);
5889
5890 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5891 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5dfca53f
JB		 5892 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
5893 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9884f9cc
JB		 5894 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
5895
5896 cookie = 0;
5897 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5898 msg = NULL;
5899 if (ret) {
5900 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
5901 "(%s)", ret, strerror(-ret));
5902 goto nla_put_failure;
5903 }
5904 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; "
5905 "cookie 0x%llx", (long long unsigned int) cookie);
5906
5907 if (cookie_out)
5908 *cookie_out = cookie;
5909
5910nla_put_failure:
5911 nlmsg_free(msg);
5912 return ret;
5913}
5914
5915
58f6fbe0 5916static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 5917 unsigned int wait_time,
58f6fbe0
JM		 5918 const u8 *dst, const u8 *src,
5919 const u8 *bssid,
5920 const u8 *data, size_t data_len)
5921{
a2e40bb6
FF		 5922 struct i802_bss *bss = priv;
5923 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 5924 int ret = -1;
58f6fbe0
JM		 5925 u8 *buf;
5926 struct ieee80211_hdr *hdr;
58f6fbe0 5927
5dfca53f
JB		 5928 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
5929 "wait=%d ms)", drv->ifindex, wait_time);
58f6fbe0
JM		 5930
5931 buf = os_zalloc(24 + data_len);
5932 if (buf == NULL)
5933 return ret;
5934 os_memcpy(buf + 24, data, data_len);
5935 hdr = (struct ieee80211_hdr *) buf;
5936 hdr->frame_control =
5937 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
5938 os_memcpy(hdr->addr1, dst, ETH_ALEN);
5939 os_memcpy(hdr->addr2, src, ETH_ALEN);
5940 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
5941
9884f9cc 5942 if (drv->nlmode == NL80211_IFTYPE_AP)
58f6fbe0 5943 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
9884f9cc 5944 else
5dfca53f
JB		 5945 ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf,
5946 24 + data_len,
9884f9cc 5947 &drv->send_action_cookie);
58f6fbe0 5948
f8bf1421 5949 os_free(buf);
58f6fbe0
JM		 5950 return ret;
5951}
5952
5953
5dfca53f
JB		 5954static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
5955{
5956 struct i802_bss *bss = priv;
5957 struct wpa_driver_nl80211_data *drv = bss->drv;
5958 struct nl_msg *msg;
5959 int ret;
5960
5961 msg = nlmsg_alloc();
5962 if (!msg)
5963 return;
5964
5965 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5966 NL80211_CMD_FRAME_WAIT_CANCEL, 0);
5967
5968 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5969 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
5970
5971 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5972 msg = NULL;
5973 if (ret)
5974 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
5975 "(%s)", ret, strerror(-ret));
5976
5977 nla_put_failure:
5978 nlmsg_free(msg);
5979}
5980
5981
55777702
JM		 5982static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
5983 unsigned int duration)
5984{
a2e40bb6
FF		 5985 struct i802_bss *bss = priv;
5986 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 5987 struct nl_msg *msg;
5988 int ret;
5989 u64 cookie;
5990
5991 msg = nlmsg_alloc();
5992 if (!msg)
5993 return -1;
5994
5995 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5996 NL80211_CMD_REMAIN_ON_CHANNEL, 0);
5997
5998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5999 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6000 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6001
6002 cookie = 0;
6003 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6004 if (ret == 0) {
6005 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
6006 "0x%llx for freq=%u MHz duration=%u",
6007 (long long unsigned int) cookie, freq, duration);
6008 drv->remain_on_chan_cookie = cookie;
6009 return 0;
6010 }
6011 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 6012 "(freq=%d duration=%u): %d (%s)",
6013 freq, duration, ret, strerror(-ret));
55777702
JM		 6014nla_put_failure:
6015 return -1;
6016}
6017
6018
6019static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
6020{
a2e40bb6
FF		 6021 struct i802_bss *bss = priv;
6022 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6023 struct nl_msg *msg;
6024 int ret;
6025
6026 if (!drv->pending_remain_on_chan) {
6027 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
6028 "to cancel");
6029 return -1;
6030 }
6031
6032 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
6033 "0x%llx",
6034 (long long unsigned int) drv->remain_on_chan_cookie);
6035
6036 msg = nlmsg_alloc();
6037 if (!msg)
6038 return -1;
6039
6040 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6041 NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0);
6042
6043 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6044 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
6045
6046 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6047 if (ret == 0)
6048 return 0;
6049 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
6050 "%d (%s)", ret, strerror(-ret));
6051nla_put_failure:
6052 return -1;
6053}
6054
6055
504e905c
JM		 6056static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
6057{
a2e40bb6
FF		 6058 struct i802_bss *bss = priv;
6059 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c
JM		 6060
6061 if (drv->nlmode != NL80211_IFTYPE_STATION) {
6062 wpa_printf(MSG_DEBUG, "nl80211: probe_req_report control only "
6063 "allowed in station mode (iftype=%d)",
6064 drv->nlmode);
6065 return -1;
6066 }
504e905c 6067
5582a5d1
JB		 6068 if (!report) {
6069 if (drv->nl_handle_preq) {
6070 eloop_unregister_read_sock(
6071 nl_socket_get_fd(drv->nl_handle_preq));
6072 nl_cache_free(drv->nl_cache_preq);
6073 nl80211_handle_destroy(drv->nl_handle_preq);
6074 drv->nl_handle_preq = NULL;
6075 }
6076 return 0;
6077 }
6078
6079 if (drv->nl_handle_preq) {
6080 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
6081 "already on!");
6082 return 0;
6083 }
6084
6085 drv->nl_handle_preq = nl80211_handle_alloc(drv->nl_cb);
6086 if (drv->nl_handle_preq == NULL) {
6087 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate "
6088 "netlink callbacks (preq)");
6089 goto out_err1;
6090 }
6091
6092 if (genl_connect(drv->nl_handle_preq)) {
6093 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to "
6094 "generic netlink (preq)");
6095 goto out_err2;
6096 return -1;
504e905c
JM		 6097 }
6098
5582a5d1
JB		 6099#ifdef CONFIG_LIBNL20
6100 if (genl_ctrl_alloc_cache(drv->nl_handle_preq,
6101 &drv->nl_cache_preq) < 0) {
6102 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
6103 "netlink cache (preq)");
6104 goto out_err2;
6105 }
6106#else /* CONFIG_LIBNL20 */
6107 drv->nl_cache_preq = genl_ctrl_alloc_cache(drv->nl_handle_preq);
6108 if (drv->nl_cache_preq == NULL) {
6109 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
6110 "netlink cache (preq)");
6111 goto out_err2;
6112 }
6113#endif /* CONFIG_LIBNL20 */
6114
6115 if (nl80211_register_frame(drv, drv->nl_handle_preq,
6116 (WLAN_FC_TYPE_MGMT << 2) |
6117 (WLAN_FC_STYPE_PROBE_REQ << 4),
6118 NULL, 0) < 0) {
6119 goto out_err3;
6120 }
6121
6122 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_preq),
6123 wpa_driver_nl80211_event_receive, drv,
6124 drv->nl_handle_preq);
6125
504e905c 6126 return 0;
5582a5d1
JB		 6127
6128 out_err3:
6129 nl_cache_free(drv->nl_cache_preq);
6130 out_err2:
6131 nl80211_handle_destroy(drv->nl_handle_preq);
6132 drv->nl_handle_preq = NULL;
6133 out_err1:
6134 return -1;
504e905c
JM		 6135}
6136
6137
4e5cb1a3
JM		 6138static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
6139 int ifindex, int disabled)
6140{
6141 struct nl_msg *msg;
6142 struct nlattr *bands, *band;
6143 int ret;
6144
6145 msg = nlmsg_alloc();
6146 if (!msg)
6147 return -1;
6148
6149 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6150 NL80211_CMD_SET_TX_BITRATE_MASK, 0);
6151 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6152
6153 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
6154 if (!bands)
6155 goto nla_put_failure;
6156
6157 /*
6158 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
6159 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
6160 * rates. All 5 GHz rates are left enabled.
6161 */
6162 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
6163 if (!band)
6164 goto nla_put_failure;
6165 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
6166 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
6167 nla_nest_end(msg, band);
6168
6169 nla_nest_end(msg, bands);
6170
6171 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6172 msg = NULL;
6173 if (ret) {
6174 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
6175 "(%s)", ret, strerror(-ret));
6176 }
6177
6178 return ret;
6179
6180nla_put_failure:
6181 nlmsg_free(msg);
6182 return -1;
6183}
6184
6185
6186static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
6187{
a2e40bb6
FF		 6188 struct i802_bss *bss = priv;
6189 struct wpa_driver_nl80211_data *drv = bss->drv;
4e5cb1a3
JM		 6190 drv->disable_11b_rates = disabled;
6191 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
6192}
6193
6194
af473088
JM		 6195static int wpa_driver_nl80211_deinit_ap(void *priv)
6196{
a2e40bb6
FF		 6197 struct i802_bss *bss = priv;
6198 struct wpa_driver_nl80211_data *drv = bss->drv;
af473088
JM		 6199 if (drv->nlmode != NL80211_IFTYPE_AP)
6200 return -1;
6201 wpa_driver_nl80211_del_beacon(drv);
a2e40bb6 6202 return wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
af473088
JM		 6203}
6204
6205
207ef3fb
JM		 6206static void wpa_driver_nl80211_resume(void *priv)
6207{
a2e40bb6
FF		 6208 struct i802_bss *bss = priv;
6209 struct wpa_driver_nl80211_data *drv = bss->drv;
6210 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 6211 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
6212 "resume event");
6213 }
6214}
6215
6216
7b90c16a
JM		 6217static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
6218 const u8 *ies, size_t ies_len)
6219{
6220 struct i802_bss *bss = priv;
6221 struct wpa_driver_nl80211_data *drv = bss->drv;
6222 int ret;
6223 u8 *data, *pos;
6224 size_t data_len;
6225 u8 own_addr[ETH_ALEN];
6226
6227 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
6228 return -1;
6229
6230 if (action != 1) {
6231 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
6232 "action %d", action);
6233 return -1;
6234 }
6235
6236 /*
6237 * Action frame payload:
6238 * Category[1] = 6 (Fast BSS Transition)
6239 * Action[1] = 1 (Fast BSS Transition Request)
6240 * STA Address
6241 * Target AP Address
6242 * FT IEs
6243 */
6244
73fc617d
JM		 6245 data_len = 2 + 2 * ETH_ALEN + ies_len;
6246 data = os_malloc(data_len);
7b90c16a
JM		 6247 if (data == NULL)
6248 return -1;
6249 pos = data;
6250 *pos++ = 0x06; /* FT Action category */
6251 *pos++ = action;
6252 os_memcpy(pos, own_addr, ETH_ALEN);
6253 pos += ETH_ALEN;
6254 os_memcpy(pos, target_ap, ETH_ALEN);
6255 pos += ETH_ALEN;
6256 os_memcpy(pos, ies, ies_len);
6257
190b9062
JB		 6258 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
6259 drv->bssid, own_addr, drv->bssid,
7b90c16a
JM		 6260 data, data_len);
6261 os_free(data);
6262
6263 return ret;
6264}
6265
6266
b625473c
JM		 6267static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
6268{
6269 struct i802_bss *bss = priv;
6270 struct wpa_driver_nl80211_data *drv = bss->drv;
6271 struct nl_msg *msg, *cqm = NULL;
6272
6273 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
6274 "hysteresis=%d", threshold, hysteresis);
6275
6276 msg = nlmsg_alloc();
6277 if (!msg)
6278 return -1;
6279
6280 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
6281 0, NL80211_CMD_SET_CQM, 0);
6282
6283 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
6284
6285 cqm = nlmsg_alloc();
6286 if (cqm == NULL)
6287 return -1;
6288
6289 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
6290 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
6291 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
6292
6293 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6294 return 0;
6295 msg = NULL;
6296
6297nla_put_failure:
6298 if (cqm)
6299 nlmsg_free(cqm);
6300 nlmsg_free(msg);
6301 return -1;
6302}
6303
6304
b91ab76e
JM		 6305static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
6306 int encrypt)
6307{
6308 struct i802_bss *bss = priv;
6309 struct wpa_driver_nl80211_data *drv = bss->drv;
6310 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
6311}
6312
6313
6ee04cfc
JB		 6314static int nl80211_set_intra_bss(void *priv, int enabled)
6315{
6316 struct i802_bss *bss = priv;
6317 struct wpa_driver_nl80211_data *drv = bss->drv;
6318 struct nl_msg *msg;
6319
6320 msg = nlmsg_alloc();
6321 if (!msg)
6322 return -ENOMEM;
6323
6324 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6325 NL80211_CMD_SET_BSS, 0);
6326
6327 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6328 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, !enabled);
6329
6330 return send_and_recv_msgs(drv, msg, NULL, NULL);
6331 nla_put_failure:
6332 return -ENOBUFS;
6333}
6334
6335
c55f774d
JM		 6336static int nl80211_set_param(void *priv, const char *param)
6337{
c55f774d
JM		 6338 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
6339 if (param == NULL)
6340 return 0;
6341
6342#ifdef CONFIG_P2P
6343 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 6344 struct i802_bss *bss = priv;
6345 struct wpa_driver_nl80211_data *drv = bss->drv;
6346
c55f774d
JM		 6347 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
6348 "interface");
6349 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
6350 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
6351 }
6352#endif /* CONFIG_P2P */
6353
6354 return 0;
6355}
6356
6357
f2ed8023
JM		 6358static void * nl80211_global_init(void)
6359{
6360 struct nl80211_global *global;
6361 global = os_zalloc(sizeof(*global));
6362 if (global == NULL)
6363 return NULL;
6364 dl_list_init(&global->interfaces);
6365 return global;
6366}
6367
6368
6369static void nl80211_global_deinit(void *priv)
6370{
6371 struct nl80211_global *global = priv;
6372 if (global == NULL)
6373 return;
6374 if (!dl_list_empty(&global->interfaces)) {
6375 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
6376 "nl80211_global_deinit",
6377 dl_list_len(&global->interfaces));
6378 }
6379 os_free(global);
6380}
6381
6382
6859f1cb
BG		 6383static const char * nl80211_get_radio_name(void *priv)
6384{
6385 struct i802_bss *bss = priv;
6386 struct wpa_driver_nl80211_data *drv = bss->drv;
6387 return drv->phyname;
6388}
6389
6390
3f5285e8
JM		 6391const struct wpa_driver_ops wpa_driver_nl80211_ops = {
6392 .name = "nl80211",
6393 .desc = "Linux nl80211/cfg80211",
6394 .get_bssid = wpa_driver_nl80211_get_bssid,
6395 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 6396 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 6397 .scan2 = wpa_driver_nl80211_scan,
3f5285e8
JM		 6398 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
6399 .deauthenticate = wpa_driver_nl80211_deauthenticate,
6400 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 6401 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 6402 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 6403 .global_init = nl80211_global_init,
6404 .global_deinit = nl80211_global_deinit,
6405 .init2 = wpa_driver_nl80211_init,
3f5285e8 6406 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 6407 .get_capa = wpa_driver_nl80211_get_capa,
6408 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 6409 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 6410 .set_country = wpa_driver_nl80211_set_country,
d2440ba0 6411 .set_beacon = wpa_driver_nl80211_set_beacon,
22a7c9d7
JM		 6412 .if_add = wpa_driver_nl80211_if_add,
6413 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 6414 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 6415 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 6416 .sta_add = wpa_driver_nl80211_sta_add,
6417 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 6418 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 6419 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 6420#ifdef HOSTAPD
6421 .hapd_init = i802_init,
c5121837 6422 .hapd_deinit = i802_deinit,
c5121837
JM		 6423 .get_seqnum = i802_get_seqnum,
6424 .flush = i802_flush,
6425 .read_sta_data = i802_read_sta_data,
c5121837
JM		 6426 .sta_deauth = i802_sta_deauth,
6427 .sta_disassoc = i802_sta_disassoc,
c5121837
JM		 6428 .get_inact_sec = i802_get_inact_sec,
6429 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 6430 .set_rts = i802_set_rts,
6431 .set_frag = i802_set_frag,
c5121837 6432 .set_rate_sets = i802_set_rate_sets,
c5121837
JM		 6433 .set_cts_protect = i802_set_cts_protect,
6434 .set_preamble = i802_set_preamble,
6435 .set_short_slot_time = i802_set_short_slot_time,
6436 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 6437 .set_sta_vlan = i802_set_sta_vlan,
fbbfcbac 6438 .set_wds_sta = i802_set_wds_sta,
f1bed4a7 6439 .set_ht_params = i802_set_ht_params,
c5121837 6440#endif /* HOSTAPD */
e3802622 6441 .set_freq = i802_set_freq,
58f6fbe0 6442 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 6443 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 6444 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
6445 .cancel_remain_on_channel =
6446 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 6447 .probe_req_report = wpa_driver_nl80211_probe_req_report,
4e5cb1a3 6448 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
af473088 6449 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 6450 .resume = wpa_driver_nl80211_resume,
7b90c16a 6451 .send_ft_action = nl80211_send_ft_action,
b625473c 6452 .signal_monitor = nl80211_signal_monitor,
b91ab76e 6453 .send_frame = nl80211_send_frame,
6ee04cfc 6454 .set_intra_bss = nl80211_set_intra_bss,
c55f774d 6455 .set_param = nl80211_set_param,
6859f1cb 6456 .get_radio_name = nl80211_get_radio_name,
3f5285e8 6457};
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