git.maemo.org Git - wpasupplicant/blob - hostapd/driver_nl80211.c

   1 /*
   2  * hostapd / Kernel driver communication via nl80211
   3  * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
   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>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * Alternatively, this software may be distributed under the terms of BSD
  13  * license.
  14  *
  15  * See README and COPYING for more details.
  16  */
  17
  18 #include "includes.h"
  19
  20 #include <sys/ioctl.h>
  21 #include <netlink/genl/genl.h>
  22 #include <netlink/genl/family.h>
  23 #include <netlink/genl/ctrl.h>
  24 #include <netlink/msg.h>
  25 #include <netlink/attr.h>
  26 #include "nl80211_copy.h"
  27 #include <net/if.h>
  28 #include <netpacket/packet.h>
  29 #include "wireless_copy.h"
  30 #include <net/if_arp.h>
  31
  32 #include "hostapd.h"
  33 #include "driver.h"
  34 #include "ieee802_1x.h"
  35 #include "eloop.h"
  36 #include "ieee802_11.h"
  37 #include "hw_features.h"
  38 #include "mlme.h"
  39 #include "radiotap.h"
  40 #include "radiotap_iter.h"
  41
  42 #ifdef CONFIG_LIBNL20
  43 /* libnl 2.0 compatibility code */
  44 #define nl_handle_alloc_cb nl_socket_alloc_cb
  45 #define nl_handle_destroy nl_socket_free
  46 #endif /* CONFIG_LIBNL20 */
  47
  48 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
  49
  50 enum ieee80211_msg_type {
  51         ieee80211_msg_normal = 0,
  52         ieee80211_msg_tx_callback_ack = 1,
  53         ieee80211_msg_tx_callback_fail = 2,
  54 };
  55
  56 struct i802_driver_data {
  57         struct hostapd_data *hapd;
  58
  59         char iface[IFNAMSIZ + 1];
  60         int bridge;
  61         int ioctl_sock; /* socket for ioctl() use */
  62         int wext_sock; /* socket for wireless events */
  63         int eapol_sock; /* socket for EAPOL frames */
  64         int monitor_sock; /* socket for monitor */
  65         int monitor_ifidx;
  66
  67         int default_if_indices[16];
  68         int *if_indices;
  69         int num_if_indices;
  70
  71         int we_version;
  72         struct nl_handle *nl_handle;
  73         struct nl_cache *nl_cache;
  74         struct nl_cb *nl_cb;
  75         struct genl_family *nl80211;
  76         int dtim_period, beacon_int;
  77         unsigned int beacon_set:1;
  78         unsigned int ieee802_1x_active:1;
  79
  80         int last_freq;
  81         int last_freq_ht;
  82 };
  83
  84
  85 static int i802_sta_deauth(void *priv, const u8 *addr, int reason);
  86 static int i802_sta_disassoc(void *priv, const u8 *addr, int reason);
  87
  88
  89 static void add_ifidx(struct i802_driver_data *drv, int ifidx)
  90 {
  91         int i;
  92         int *old;
  93
  94         for (i = 0; i < drv->num_if_indices; i++) {
  95                 if (drv->if_indices[i] == 0) {
  96                         drv->if_indices[i] = ifidx;
  97                         return;
  98                 }
  99         }
 100
 101         if (drv->if_indices != drv->default_if_indices)
 102                 old = drv->if_indices;
 103         else
 104                 old = NULL;
 105
 106         drv->if_indices = realloc(old,
 107                                   sizeof(int) * (drv->num_if_indices + 1));
 108         if (!drv->if_indices) {
 109                 if (!old)
 110                         drv->if_indices = drv->default_if_indices;
 111                 else
 112                         drv->if_indices = old;
 113                 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
 114                            "interfaces");
 115                 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
 116                 return;
 117         }
 118         drv->if_indices[drv->num_if_indices] = ifidx;
 119         drv->num_if_indices++;
 120 }
 121
 122
 123 static void del_ifidx(struct i802_driver_data *drv, int ifidx)
 124 {
 125         int i;
 126
 127         for (i = 0; i < drv->num_if_indices; i++) {
 128                 if (drv->if_indices[i] == ifidx) {
 129                         drv->if_indices[i] = 0;
 130                         break;
 131                 }
 132         }
 133 }
 134
 135
 136 static int have_ifidx(struct i802_driver_data *drv, int ifidx)
 137 {
 138         int i;
 139
 140         if (ifidx == drv->bridge)
 141                 return 1;
 142
 143         for (i = 0; i < drv->num_if_indices; i++)
 144                 if (drv->if_indices[i] == ifidx)
 145                         return 1;
 146
 147         return 0;
 148 }
 149
 150
 151 /* nl80211 code */
 152 static int ack_handler(struct nl_msg *msg, void *arg)
 153 {
 154         int *err = arg;
 155         *err = 0;
 156         return NL_STOP;
 157 }
 158
 159 static int finish_handler(struct nl_msg *msg, void *arg)
 160 {
 161         int *ret = arg;
 162         *ret = 0;
 163         return NL_SKIP;
 164 }
 165
 166 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
 167                          void *arg)
 168 {
 169         int *ret = arg;
 170         *ret = err->error;
 171         return NL_SKIP;
 172 }
 173
 174 static int send_and_recv_msgs(struct i802_driver_data *drv,
 175                               struct nl_msg *msg,
 176                               int (*valid_handler)(struct nl_msg *, void *),
 177                               void *valid_data)
 178 {
 179         struct nl_cb *cb;
 180         int err = -ENOMEM;
 181
 182         cb = nl_cb_clone(drv->nl_cb);
 183         if (!cb)
 184                 goto out;
 185
 186         err = nl_send_auto_complete(drv->nl_handle, msg);
 187         if (err < 0)
 188                 goto out;
 189
 190         err = 1;
 191
 192         nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
 193         nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
 194         nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
 195
 196         if (valid_handler)
 197                 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
 198                           valid_handler, valid_data);
 199
 200         while (err > 0)
 201                 nl_recvmsgs(drv->nl_handle, cb);
 202  out:
 203         nl_cb_put(cb);
 204         nlmsg_free(msg);
 205         return err;
 206 }
 207
 208 static int hostapd_set_iface_flags(struct i802_driver_data *drv,
 209                                    const char *ifname, int dev_up)
 210 {
 211         struct ifreq ifr;
 212
 213         if (drv->ioctl_sock < 0)
 214                 return -1;
 215
 216         memset(&ifr, 0, sizeof(ifr));
 217         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 218
 219         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
 220                 perror("ioctl[SIOCGIFFLAGS]");
 221                 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
 222                            drv->iface);
 223                 return -1;
 224         }
 225
 226         if (dev_up)
 227                 ifr.ifr_flags |= IFF_UP;
 228         else
 229                 ifr.ifr_flags &= ~IFF_UP;
 230
 231         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
 232                 perror("ioctl[SIOCSIFFLAGS]");
 233                 return -1;
 234         }
 235
 236         return 0;
 237 }
 238
 239
 240 static int nl_set_encr(int ifindex, struct i802_driver_data *drv,
 241                        const char *alg, const u8 *addr, int idx, const u8 *key,
 242                        size_t key_len, int txkey)
 243 {
 244         struct nl_msg *msg;
 245         int ret;
 246
 247         msg = nlmsg_alloc();
 248         if (!msg)
 249                 return -ENOMEM;
 250
 251         if (strcmp(alg, "none") == 0) {
 252                 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 253                             0, NL80211_CMD_DEL_KEY, 0);
 254         } else {
 255                 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 256                             0, NL80211_CMD_NEW_KEY, 0);
 257                 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
 258                 if (strcmp(alg, "WEP") == 0) {
 259                         if (key_len == 5)
 260                                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
 261                                             0x000FAC01);
 262                         else
 263                                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
 264                                             0x000FAC05);
 265                 } else if (strcmp(alg, "TKIP") == 0)
 266                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
 267                 else if (strcmp(alg, "CCMP") == 0)
 268                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
 269                 else if (strcmp(alg, "IGTK") == 0)
 270                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC06);
 271                 else {
 272                         wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
 273                                    "algorithm '%s'", __func__, alg);
 274                         nlmsg_free(msg);
 275                         return -1;
 276                 }
 277         }
 278
 279         if (addr)
 280                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 281         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 282         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
 283
 284         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 285         if (ret == -ENOENT)
 286                 ret = 0;
 287
 288         /*
 289          * If we failed or don't need to set the default TX key (below),
 290          * we're done here.
 291          */
 292         if (ret || !txkey || addr)
 293                 return ret;
 294
 295         msg = nlmsg_alloc();
 296         if (!msg)
 297                 return -ENOMEM;
 298
 299         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 300                     0, NL80211_CMD_SET_KEY, 0);
 301         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 302         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
 303         if (strcmp(alg, "IGTK") == 0)
 304                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
 305         else
 306                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
 307
 308         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 309         if (ret == -ENOENT)
 310                 ret = 0;
 311         return ret;
 312  nla_put_failure:
 313         return -ENOBUFS;
 314 }
 315
 316
 317 static int i802_set_encryption(const char *iface, void *priv, const char *alg,
 318                                const u8 *addr, int idx, const u8 *key,
 319                                size_t key_len, int txkey)
 320 {
 321         struct i802_driver_data *drv = priv;
 322         int ret;
 323
 324         ret = nl_set_encr(if_nametoindex(iface), drv, alg, addr, idx, key,
 325                           key_len, txkey);
 326         if (ret < 0)
 327                 return ret;
 328
 329         return ret;
 330 }
 331
 332
 333 static inline int min_int(int a, int b)
 334 {
 335         if (a < b)
 336                 return a;
 337         return b;
 338 }
 339
 340
 341 static int get_key_handler(struct nl_msg *msg, void *arg)
 342 {
 343         struct nlattr *tb[NL80211_ATTR_MAX + 1];
 344         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 345
 346         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 347                   genlmsg_attrlen(gnlh, 0), NULL);
 348
 349         /*
 350          * TODO: validate the key index and mac address!
 351          * Otherwise, there's a race condition as soon as
 352          * the kernel starts sending key notifications.
 353          */
 354
 355         if (tb[NL80211_ATTR_KEY_SEQ])
 356                 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
 357                        min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
 358         return NL_SKIP;
 359 }
 360
 361
 362 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
 363                            int idx, u8 *seq)
 364 {
 365         struct i802_driver_data *drv = priv;
 366         struct nl_msg *msg;
 367
 368         msg = nlmsg_alloc();
 369         if (!msg)
 370                 return -ENOMEM;
 371
 372         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 373                     0, NL80211_CMD_GET_KEY, 0);
 374
 375         if (addr)
 376                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 377         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 378         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
 379
 380         memset(seq, 0, 6);
 381
 382         return send_and_recv_msgs(drv, msg, get_key_handler, seq);
 383  nla_put_failure:
 384         return -ENOBUFS;
 385 }
 386
 387
 388 static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
 389                               int mode)
 390 {
 391         struct i802_driver_data *drv = priv;
 392         struct nl_msg *msg;
 393         u8 rates[NL80211_MAX_SUPP_RATES];
 394         u8 rates_len = 0;
 395         int i;
 396
 397         msg = nlmsg_alloc();
 398         if (!msg)
 399                 return -ENOMEM;
 400
 401         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
 402                     NL80211_CMD_SET_BSS, 0);
 403
 404         for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
 405                 rates[rates_len++] = basic_rates[i] / 5;
 406
 407         NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
 408
 409         /* TODO: multi-BSS support */
 410         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 411
 412         return send_and_recv_msgs(drv, msg, NULL, NULL);
 413  nla_put_failure:
 414         return -ENOBUFS;
 415 }
 416
 417
 418 static int i802_send_frame(void *priv, const void *data, size_t len,
 419                            int encrypt, int flags)
 420 {
 421         __u8 rtap_hdr[] = {
 422                 0x00, 0x00, /* radiotap version */
 423                 0x0e, 0x00, /* radiotap length */
 424                 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
 425                 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
 426                 0x00,       /* padding */
 427                 0x00, 0x00, /* RX and TX flags to indicate that */
 428                 0x00, 0x00, /* this is the injected frame directly */
 429         };
 430         struct i802_driver_data *drv = priv;
 431         struct iovec iov[2] = {
 432                 {
 433                         .iov_base = &rtap_hdr,
 434                         .iov_len = sizeof(rtap_hdr),
 435                 },
 436                 {
 437                         .iov_base = (void*)data,
 438                         .iov_len = len,
 439                 }
 440         };
 441         struct msghdr msg = {
 442                 .msg_name = NULL,
 443                 .msg_namelen = 0,
 444                 .msg_iov = iov,
 445                 .msg_iovlen = 2,
 446                 .msg_control = NULL,
 447                 .msg_controllen = 0,
 448                 .msg_flags = 0,
 449         };
 450
 451         if (encrypt)
 452                 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
 453
 454         return sendmsg(drv->monitor_sock, &msg, flags);
 455 }
 456
 457 static int i802_send_mgmt_frame(void *priv, const void *data, size_t len,
 458                                 int flags)
 459 {
 460         struct ieee80211_mgmt *mgmt;
 461         int do_not_encrypt = 0;
 462         u16 fc;
 463
 464         mgmt = (struct ieee80211_mgmt *) data;
 465         fc = le_to_host16(mgmt->frame_control);
 466
 467         if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
 468             WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
 469                 /*
 470                  * Only one of the authentication frame types is encrypted.
 471                  * In order for static WEP encryption to work properly (i.e.,
 472                  * to not encrypt the frame), we need to tell mac80211 about
 473                  * the frames that must not be encrypted.
 474                  */
 475                 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
 476                 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
 477                 if (auth_alg == WLAN_AUTH_OPEN ||
 478                     (auth_alg == WLAN_AUTH_SHARED_KEY && auth_trans != 3))
 479                         do_not_encrypt = 1;
 480         }
 481
 482         return i802_send_frame(priv, data, len, !do_not_encrypt, flags);
 483 }
 484
 485 /* Set kernel driver on given frequency (MHz) */
 486 static int i802_set_freq2(void *priv, struct hostapd_freq_params *freq)
 487 {
 488         struct i802_driver_data *drv = priv;
 489         struct nl_msg *msg;
 490
 491         msg = nlmsg_alloc();
 492         if (!msg)
 493                 return -1;
 494
 495         drv->last_freq = freq->freq;
 496         drv->last_freq_ht = freq->ht_enabled;
 497
 498         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
 499                     NL80211_CMD_SET_WIPHY, 0);
 500
 501         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 502         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
 503         if (freq->ht_enabled) {
 504                 switch (freq->sec_channel_offset) {
 505                 case -1:
 506                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 507                                     NL80211_CHAN_HT40MINUS);
 508                         break;
 509                 case 1:
 510                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 511                                     NL80211_CHAN_HT40PLUS);
 512                         break;
 513                 default:
 514                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 515                                     NL80211_CHAN_HT20);
 516                         break;
 517                 }
 518         }
 519
 520         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 521                 return 0;
 522  nla_put_failure:
 523         return -1;
 524 }
 525
 526
 527 static int i802_set_rts(void *priv, int rts)
 528 {
 529         struct i802_driver_data *drv = priv;
 530         struct iwreq iwr;
 531
 532         memset(&iwr, 0, sizeof(iwr));
 533         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 534         iwr.u.rts.value = rts;
 535         iwr.u.rts.fixed = 1;
 536
 537         if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
 538                 perror("ioctl[SIOCSIWRTS]");
 539                 return -1;
 540         }
 541
 542         return 0;
 543 }
 544
 545
 546 static int i802_get_rts(void *priv, int *rts)
 547 {
 548         struct i802_driver_data *drv = priv;
 549         struct iwreq iwr;
 550
 551         memset(&iwr, 0, sizeof(iwr));
 552         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 553
 554         if (ioctl(drv->ioctl_sock, SIOCGIWRTS, &iwr) < 0) {
 555                 perror("ioctl[SIOCGIWRTS]");
 556                 return -1;
 557         }
 558
 559         *rts = iwr.u.rts.value;
 560
 561         return 0;
 562 }
 563
 564
 565 static int i802_set_frag(void *priv, int frag)
 566 {
 567         struct i802_driver_data *drv = priv;
 568         struct iwreq iwr;
 569
 570         memset(&iwr, 0, sizeof(iwr));
 571         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 572         iwr.u.frag.value = frag;
 573         iwr.u.frag.fixed = 1;
 574
 575         if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
 576                 perror("ioctl[SIOCSIWFRAG]");
 577                 return -1;
 578         }
 579
 580         return 0;
 581 }
 582
 583
 584 static int i802_get_frag(void *priv, int *frag)
 585 {
 586         struct i802_driver_data *drv = priv;
 587         struct iwreq iwr;
 588
 589         memset(&iwr, 0, sizeof(iwr));
 590         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 591
 592         if (ioctl(drv->ioctl_sock, SIOCGIWFRAG, &iwr) < 0) {
 593                 perror("ioctl[SIOCGIWFRAG]");
 594                 return -1;
 595         }
 596
 597         *frag = iwr.u.frag.value;
 598
 599         return 0;
 600 }
 601
 602
 603 static int i802_set_retry(void *priv, int short_retry, int long_retry)
 604 {
 605         struct i802_driver_data *drv = priv;
 606         struct iwreq iwr;
 607
 608         memset(&iwr, 0, sizeof(iwr));
 609         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 610
 611         iwr.u.retry.value = short_retry;
 612         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
 613         if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
 614                 perror("ioctl[SIOCSIWRETRY(short)]");
 615                 return -1;
 616         }
 617
 618         iwr.u.retry.value = long_retry;
 619         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 620         if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
 621                 perror("ioctl[SIOCSIWRETRY(long)]");
 622                 return -1;
 623         }
 624
 625         return 0;
 626 }
 627
 628
 629 static int i802_get_retry(void *priv, int *short_retry, int *long_retry)
 630 {
 631         struct i802_driver_data *drv = priv;
 632         struct iwreq iwr;
 633
 634         memset(&iwr, 0, sizeof(iwr));
 635         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 636
 637         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
 638         if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
 639                 perror("ioctl[SIOCGIWFRAG(short)]");
 640                 return -1;
 641         }
 642         *short_retry = iwr.u.retry.value;
 643
 644         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 645         if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
 646                 perror("ioctl[SIOCGIWFRAG(long)]");
 647                 return -1;
 648         }
 649         *long_retry = iwr.u.retry.value;
 650
 651         return 0;
 652 }
 653
 654
 655 static int i802_flush(void *priv)
 656 {
 657         struct i802_driver_data *drv = priv;
 658         struct nl_msg *msg;
 659
 660         msg = nlmsg_alloc();
 661         if (!msg)
 662                 return -1;
 663
 664         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 665                     0, NL80211_CMD_DEL_STATION, 0);
 666
 667         /*
 668          * XXX: FIX! this needs to flush all VLANs too
 669          */
 670         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 671                     if_nametoindex(drv->iface));
 672
 673         return send_and_recv_msgs(drv, msg, NULL, NULL);
 674  nla_put_failure:
 675         return -ENOBUFS;
 676 }
 677
 678
 679 static int get_sta_handler(struct nl_msg *msg, void *arg)
 680 {
 681         struct nlattr *tb[NL80211_ATTR_MAX + 1];
 682         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 683         struct hostap_sta_driver_data *data = arg;
 684         struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
 685         static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
 686                 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
 687                 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
 688                 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
 689         };
 690
 691         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 692                   genlmsg_attrlen(gnlh, 0), NULL);
 693
 694         /*
 695          * TODO: validate the interface and mac address!
 696          * Otherwise, there's a race condition as soon as
 697          * the kernel starts sending station notifications.
 698          */
 699
 700         if (!tb[NL80211_ATTR_STA_INFO]) {
 701                 wpa_printf(MSG_DEBUG, "sta stats missing!");
 702                 return NL_SKIP;
 703         }
 704         if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
 705                              tb[NL80211_ATTR_STA_INFO],
 706                              stats_policy)) {
 707                 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
 708                 return NL_SKIP;
 709         }
 710
 711         if (stats[NL80211_STA_INFO_INACTIVE_TIME])
 712                 data->inactive_msec =
 713                         nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
 714         if (stats[NL80211_STA_INFO_RX_BYTES])
 715                 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
 716         if (stats[NL80211_STA_INFO_TX_BYTES])
 717                 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
 718
 719         return NL_SKIP;
 720 }
 721
 722 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
 723                               const u8 *addr)
 724 {
 725         struct i802_driver_data *drv = priv;
 726         struct nl_msg *msg;
 727
 728         msg = nlmsg_alloc();
 729         if (!msg)
 730                 return -ENOMEM;
 731
 732         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 733                     0, NL80211_CMD_GET_STATION, 0);
 734
 735         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 736         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 737
 738         return send_and_recv_msgs(drv, msg, get_sta_handler, data);
 739  nla_put_failure:
 740         return -ENOBUFS;
 741 }
 742
 743
 744 static int i802_send_eapol(void *priv, const u8 *addr, const u8 *data,
 745                            size_t data_len, int encrypt, const u8 *own_addr)
 746 {
 747         struct i802_driver_data *drv = priv;
 748         struct ieee80211_hdr *hdr;
 749         size_t len;
 750         u8 *pos;
 751         int res;
 752 #if 0 /* FIX */
 753         int qos = sta->flags & WLAN_STA_WME;
 754 #else
 755         int qos = 0;
 756 #endif
 757
 758         len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
 759                 data_len;
 760         hdr = os_zalloc(len);
 761         if (hdr == NULL) {
 762                 printf("malloc() failed for i802_send_data(len=%lu)\n",
 763                        (unsigned long) len);
 764                 return -1;
 765         }
 766
 767         hdr->frame_control =
 768                 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
 769         hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
 770         if (encrypt)
 771                 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
 772 #if 0 /* To be enabled if qos determination is added above */
 773         if (qos) {
 774                 hdr->frame_control |=
 775                         host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
 776         }
 777 #endif
 778
 779         memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
 780         memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
 781         memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
 782         pos = (u8 *) (hdr + 1);
 783
 784 #if 0 /* To be enabled if qos determination is added above */
 785         if (qos) {
 786                 /* add an empty QoS header if needed */
 787                 pos[0] = 0;
 788                 pos[1] = 0;
 789                 pos += 2;
 790         }
 791 #endif
 792
 793         memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
 794         pos += sizeof(rfc1042_header);
 795         WPA_PUT_BE16(pos, ETH_P_PAE);
 796         pos += 2;
 797         memcpy(pos, data, data_len);
 798
 799         res = i802_send_frame(drv, (u8 *) hdr, len, encrypt, 0);
 800         free(hdr);
 801
 802         if (res < 0) {
 803                 perror("i802_send_eapol: send");
 804                 printf("i802_send_eapol - packet len: %lu - failed\n",
 805                        (unsigned long) len);
 806         }
 807
 808         return res;
 809 }
 810
 811
 812 static int i802_sta_add2(const char *ifname, void *priv,
 813                          struct hostapd_sta_add_params *params)
 814 {
 815         struct i802_driver_data *drv = priv;
 816         struct nl_msg *msg;
 817         int ret = -ENOBUFS;
 818
 819         msg = nlmsg_alloc();
 820         if (!msg)
 821                 return -ENOMEM;
 822
 823         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 824                     0, NL80211_CMD_NEW_STATION, 0);
 825
 826         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 827                     if_nametoindex(drv->iface));
 828         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
 829         NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
 830         NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
 831                 params->supp_rates);
 832         NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
 833                     params->listen_interval);
 834
 835 #ifdef CONFIG_IEEE80211N
 836         if (params->ht_capabilities) {
 837                 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
 838                         params->ht_capabilities->length,
 839                         &params->ht_capabilities->data);
 840         }
 841 #endif /* CONFIG_IEEE80211N */
 842
 843         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 844         if (ret == -EEXIST)
 845                 ret = 0;
 846  nla_put_failure:
 847         return ret;
 848 }
 849
 850
 851 static int i802_sta_remove(void *priv, const u8 *addr)
 852 {
 853         struct i802_driver_data *drv = priv;
 854         struct nl_msg *msg;
 855         int ret;
 856
 857         msg = nlmsg_alloc();
 858         if (!msg)
 859                 return -ENOMEM;
 860
 861         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 862                     0, NL80211_CMD_DEL_STATION, 0);
 863
 864         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 865                     if_nametoindex(drv->iface));
 866         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 867
 868         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 869         if (ret == -ENOENT)
 870                 return 0;
 871         return ret;
 872  nla_put_failure:
 873         return -ENOBUFS;
 874 }
 875
 876
 877 static int i802_sta_set_flags(void *priv, const u8 *addr,
 878                               int total_flags, int flags_or, int flags_and)
 879 {
 880         struct i802_driver_data *drv = priv;
 881         struct nl_msg *msg, *flags = NULL;
 882
 883         msg = nlmsg_alloc();
 884         if (!msg)
 885                 return -ENOMEM;
 886
 887         flags = nlmsg_alloc();
 888         if (!flags) {
 889                 nlmsg_free(msg);
 890                 return -ENOMEM;
 891         }
 892
 893         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 894                     0, NL80211_CMD_SET_STATION, 0);
 895
 896         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 897                     if_nametoindex(drv->iface));
 898         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 899
 900         if (total_flags & WLAN_STA_AUTHORIZED || !drv->ieee802_1x_active)
 901                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
 902
 903         if (total_flags & WLAN_STA_WME)
 904                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
 905
 906         if (total_flags & WLAN_STA_SHORT_PREAMBLE)
 907                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
 908
 909         if (total_flags & WLAN_STA_MFP)
 910                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
 911
 912         if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
 913                 goto nla_put_failure;
 914
 915         nlmsg_free(flags);
 916
 917         return send_and_recv_msgs(drv, msg, NULL, NULL);
 918  nla_put_failure:
 919         nlmsg_free(flags);
 920         return -ENOBUFS;
 921 }
 922
 923
 924 static int i802_set_regulatory_domain(void *priv, unsigned int rd)
 925 {
 926         return -1;
 927 }
 928
 929
 930 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
 931                                     int cw_min, int cw_max, int burst_time)
 932 {
 933         struct i802_driver_data *drv = priv;
 934         struct nl_msg *msg;
 935         struct nlattr *txq, *params;
 936
 937         msg = nlmsg_alloc();
 938         if (!msg)
 939                 return -1;
 940
 941         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 942                     0, NL80211_CMD_SET_WIPHY, 0);
 943
 944         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 945
 946         txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
 947         if (!txq)
 948                 goto nla_put_failure;
 949
 950         /* We are only sending parameters for a single TXQ at a time */
 951         params = nla_nest_start(msg, 1);
 952         if (!params)
 953                 goto nla_put_failure;
 954
 955         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
 956         /* Burst time is configured in units of 0.1 msec and TXOP parameter in
 957          * 32 usec, so need to convert the value here. */
 958         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
 959         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
 960         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
 961         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
 962
 963         nla_nest_end(msg, params);
 964
 965         nla_nest_end(msg, txq);
 966
 967         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 968                 return 0;
 969  nla_put_failure:
 970         return -1;
 971 }
 972
 973
 974 static void nl80211_remove_iface(struct i802_driver_data *drv, int ifidx)
 975 {
 976         struct nl_msg *msg;
 977
 978         /* stop listening for EAPOL on this interface */
 979         del_ifidx(drv, ifidx);
 980
 981         msg = nlmsg_alloc();
 982         if (!msg)
 983                 goto nla_put_failure;
 984
 985         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 986                     0, NL80211_CMD_DEL_INTERFACE, 0);
 987         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
 988
 989         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 990                 return;
 991  nla_put_failure:
 992         printf("Failed to remove interface.\n");
 993 }
 994
 995
 996 static int nl80211_create_iface(struct i802_driver_data *drv,
 997                                 const char *ifname,
 998                                 enum nl80211_iftype iftype,
 999                                 const u8 *addr)
1000 {
1001         struct nl_msg *msg, *flags = NULL;
1002         int ifidx;
1003         struct ifreq ifreq;
1004         struct iwreq iwr;
1005         int ret = -ENOBUFS;
1006
1007         msg = nlmsg_alloc();
1008         if (!msg)
1009                 return -1;
1010
1011         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1012                     0, NL80211_CMD_NEW_INTERFACE, 0);
1013         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1014         NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
1015         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
1016
1017         if (iftype == NL80211_IFTYPE_MONITOR) {
1018                 int err;
1019
1020                 flags = nlmsg_alloc();
1021                 if (!flags)
1022                         goto nla_put_failure;
1023
1024                 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
1025
1026                 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
1027
1028                 nlmsg_free(flags);
1029
1030                 if (err)
1031                         goto nla_put_failure;
1032         }
1033
1034         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1035         if (ret) {
1036  nla_put_failure:
1037                 printf("Failed to create interface %s.\n", ifname);
1038                 return ret;
1039         }
1040
1041         ifidx = if_nametoindex(ifname);
1042
1043         if (ifidx <= 0)
1044                 return -1;
1045
1046         /* start listening for EAPOL on this interface */
1047         add_ifidx(drv, ifidx);
1048
1049         if (addr) {
1050                 switch (iftype) {
1051                 case NL80211_IFTYPE_AP:
1052                         os_strlcpy(ifreq.ifr_name, ifname, IFNAMSIZ);
1053                         memcpy(ifreq.ifr_hwaddr.sa_data, addr, ETH_ALEN);
1054                         ifreq.ifr_hwaddr.sa_family = ARPHRD_ETHER;
1055
1056                         if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifreq)) {
1057                                 nl80211_remove_iface(drv, ifidx);
1058                                 return -1;
1059                         }
1060                         break;
1061                 case NL80211_IFTYPE_WDS:
1062                         memset(&iwr, 0, sizeof(iwr));
1063                         os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
1064                         iwr.u.addr.sa_family = ARPHRD_ETHER;
1065                         memcpy(iwr.u.addr.sa_data, addr, ETH_ALEN);
1066                         if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr))
1067                                 return -1;
1068                         break;
1069                 default:
1070                         /* nothing */
1071                         break;
1072                 }
1073         }
1074
1075         return ifidx;
1076 }
1077
1078
1079 static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
1080 {
1081         int ifidx;
1082
1083         /*
1084          * The kernel supports that when the low-level driver does,
1085          * but we currently don't because we need per-BSS data that
1086          * currently we can't handle easily.
1087          */
1088         return -1;
1089
1090         ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
1091         if (ifidx < 0)
1092                 return -1;
1093         if (hostapd_set_iface_flags(priv, ifname, 1)) {
1094                 nl80211_remove_iface(priv, ifidx);
1095                 return -1;
1096         }
1097         return 0;
1098 }
1099
1100
1101 static int i802_bss_remove(void *priv, const char *ifname)
1102 {
1103         nl80211_remove_iface(priv, if_nametoindex(ifname));
1104         return 0;
1105 }
1106
1107
1108 static int i802_set_beacon(const char *iface, void *priv,
1109                            u8 *head, size_t head_len,
1110                            u8 *tail, size_t tail_len)
1111 {
1112         struct i802_driver_data *drv = priv;
1113         struct nl_msg *msg;
1114         u8 cmd = NL80211_CMD_NEW_BEACON;
1115         int ret;
1116
1117         msg = nlmsg_alloc();
1118         if (!msg)
1119                 return -ENOMEM;
1120
1121         if (drv->beacon_set)
1122                 cmd = NL80211_CMD_SET_BEACON;
1123
1124         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1125                     0, cmd, 0);
1126         NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
1127         NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
1128         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
1129         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
1130
1131         if (!drv->dtim_period)
1132                 drv->dtim_period = 2;
1133         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
1134
1135         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1136         if (!ret)
1137                 drv->beacon_set = 1;
1138         return ret;
1139  nla_put_failure:
1140         return -ENOBUFS;
1141 }
1142
1143
1144 static int i802_del_beacon(struct i802_driver_data *drv)
1145 {
1146         struct nl_msg *msg;
1147
1148         msg = nlmsg_alloc();
1149         if (!msg)
1150                 return -ENOMEM;
1151
1152         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1153                     0, NL80211_CMD_DEL_BEACON, 0);
1154         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1155
1156         return send_and_recv_msgs(drv, msg, NULL, NULL);
1157  nla_put_failure:
1158         return -ENOBUFS;
1159 }
1160
1161
1162 static int i802_set_ieee8021x(const char *ifname, void *priv, int enabled)
1163 {
1164         struct i802_driver_data *drv = priv;
1165
1166         /*
1167          * FIXME: This needs to be per interface (BSS)
1168          */
1169         drv->ieee802_1x_active = enabled;
1170         return 0;
1171 }
1172
1173
1174 static int i802_set_privacy(const char *ifname, void *priv, int enabled)
1175 {
1176         struct i802_driver_data *drv = priv;
1177         struct iwreq iwr;
1178
1179         memset(&iwr, 0, sizeof(iwr));
1180
1181         os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
1182         iwr.u.param.flags = IW_AUTH_PRIVACY_INVOKED;
1183         iwr.u.param.value = enabled;
1184
1185         ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr);
1186
1187         /* ignore errors, the kernel/driver might not care */
1188         return 0;
1189 }
1190
1191
1192 static int i802_set_internal_bridge(void *priv, int value)
1193 {
1194         return -1;
1195 }
1196
1197
1198 static int i802_set_beacon_int(void *priv, int value)
1199 {
1200         struct i802_driver_data *drv = priv;
1201         struct nl_msg *msg;
1202
1203         drv->beacon_int = value;
1204
1205         if (!drv->beacon_set)
1206                 return 0;
1207
1208         msg = nlmsg_alloc();
1209         if (!msg)
1210                 return -ENOMEM;
1211
1212         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1213                     0, NL80211_CMD_SET_BEACON, 0);
1214         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1215
1216         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
1217
1218         return send_and_recv_msgs(drv, msg, NULL, NULL);
1219  nla_put_failure:
1220         return -ENOBUFS;
1221 }
1222
1223
1224 static int i802_set_dtim_period(const char *iface, void *priv, int value)
1225 {
1226         struct i802_driver_data *drv = priv;
1227         struct nl_msg *msg;
1228
1229         msg = nlmsg_alloc();
1230         if (!msg)
1231                 return -ENOMEM;
1232
1233         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1234                     0, NL80211_CMD_SET_BEACON, 0);
1235         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
1236
1237         drv->dtim_period = value;
1238         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
1239
1240         return send_and_recv_msgs(drv, msg, NULL, NULL);
1241  nla_put_failure:
1242         return -ENOBUFS;
1243 }
1244
1245
1246 static int i802_set_bss(void *priv, int cts, int preamble, int slot)
1247 {
1248         struct i802_driver_data *drv = priv;
1249         struct nl_msg *msg;
1250
1251         msg = nlmsg_alloc();
1252         if (!msg)
1253                 return -ENOMEM;
1254
1255         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1256                     NL80211_CMD_SET_BSS, 0);
1257
1258         if (cts >= 0)
1259                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
1260         if (preamble >= 0)
1261                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
1262         if (slot >= 0)
1263                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
1264
1265         /* TODO: multi-BSS support */
1266         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1267
1268         return send_and_recv_msgs(drv, msg, NULL, NULL);
1269  nla_put_failure:
1270         return -ENOBUFS;
1271 }
1272
1273
1274 static int i802_set_cts_protect(void *priv, int value)
1275 {
1276         return i802_set_bss(priv, value, -1, -1);
1277 }
1278
1279
1280 static int i802_set_preamble(void *priv, int value)
1281 {
1282         return i802_set_bss(priv, -1, value, -1);
1283 }
1284
1285
1286 static int i802_set_short_slot_time(void *priv, int value)
1287 {
1288         return i802_set_bss(priv, -1, -1, value);
1289 }
1290
1291
1292 static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
1293 {
1294         switch (type) {
1295         case HOSTAPD_IF_VLAN:
1296                 return NL80211_IFTYPE_AP_VLAN;
1297         case HOSTAPD_IF_WDS:
1298                 return NL80211_IFTYPE_WDS;
1299         }
1300         return -1;
1301 }
1302
1303
1304 static int i802_if_add(const char *iface, void *priv,
1305                        enum hostapd_driver_if_type type, char *ifname,
1306                        const u8 *addr)
1307 {
1308         if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
1309                 return -1;
1310         return 0;
1311 }
1312
1313
1314 static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
1315                           char *ifname, const u8 *addr)
1316 {
1317         /* unused at the moment */
1318         return -1;
1319 }
1320
1321
1322 static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
1323                           const char *ifname, const u8 *addr)
1324 {
1325         nl80211_remove_iface(priv, if_nametoindex(ifname));
1326         return 0;
1327 }
1328
1329
1330 struct phy_info_arg {
1331         u16 *num_modes;
1332         struct hostapd_hw_modes *modes;
1333 };
1334
1335 static int phy_info_handler(struct nl_msg *msg, void *arg)
1336 {
1337         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1338         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1339         struct phy_info_arg *phy_info = arg;
1340
1341         struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1342
1343         struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1344         static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1345                 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1346                 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1347                 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
1348                 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
1349                 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1350                 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1351         };
1352
1353         struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1354         static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1355                 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1356                 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
1357         };
1358
1359         struct nlattr *nl_band;
1360         struct nlattr *nl_freq;
1361         struct nlattr *nl_rate;
1362         int rem_band, rem_freq, rem_rate;
1363         struct hostapd_hw_modes *mode;
1364         int idx, mode_is_set;
1365
1366         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1367                   genlmsg_attrlen(gnlh, 0), NULL);
1368
1369         if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1370                 return NL_SKIP;
1371
1372         nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
1373                 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
1374                 if (!mode)
1375                         return NL_SKIP;
1376                 phy_info->modes = mode;
1377
1378                 mode_is_set = 0;
1379
1380                 mode = &phy_info->modes[*(phy_info->num_modes)];
1381                 memset(mode, 0, sizeof(*mode));
1382                 *(phy_info->num_modes) += 1;
1383
1384                 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1385                           nla_len(nl_band), NULL);
1386
1387                 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1388                         nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1389                                   nla_len(nl_freq), freq_policy);
1390                         if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1391                                 continue;
1392                         mode->num_channels++;
1393                 }
1394
1395                 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
1396                 if (!mode->channels)
1397                         return NL_SKIP;
1398
1399                 idx = 0;
1400
1401                 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1402                         nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1403                                   nla_len(nl_freq), freq_policy);
1404                         if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1405                                 continue;
1406
1407                         mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1408                         mode->channels[idx].flag = 0;
1409
1410                         if (!mode_is_set) {
1411                                 /* crude heuristic */
1412                                 if (mode->channels[idx].freq < 4000)
1413                                         mode->mode = HOSTAPD_MODE_IEEE80211B;
1414                                 else
1415                                         mode->mode = HOSTAPD_MODE_IEEE80211A;
1416                                 mode_is_set = 1;
1417                         }
1418
1419                         /* crude heuristic */
1420                         if (mode->channels[idx].freq < 4000)
1421                                 if (mode->channels[idx].freq == 2848)
1422                                         mode->channels[idx].chan = 14;
1423                                 else
1424                                         mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
1425                         else
1426                                 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
1427
1428                         if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1429                                 mode->channels[idx].flag |=
1430                                         HOSTAPD_CHAN_DISABLED;
1431                         if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
1432                                 mode->channels[idx].flag |=
1433                                         HOSTAPD_CHAN_PASSIVE_SCAN;
1434                         if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
1435                                 mode->channels[idx].flag |=
1436                                         HOSTAPD_CHAN_NO_IBSS;
1437                         if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1438                                 mode->channels[idx].flag |=
1439                                         HOSTAPD_CHAN_RADAR;
1440
1441                         if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
1442                             !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1443                                 mode->channels[idx].max_tx_power =
1444                                         nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
1445
1446                         idx++;
1447                 }
1448
1449                 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1450                         nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1451                                   nla_len(nl_rate), rate_policy);
1452                         if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1453                                 continue;
1454                         mode->num_rates++;
1455                 }
1456
1457                 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
1458                 if (!mode->rates)
1459                         return NL_SKIP;
1460
1461                 idx = 0;
1462
1463                 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1464                         nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1465                                   nla_len(nl_rate), rate_policy);
1466                         if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1467                                 continue;
1468                         mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
1469
1470                         /* crude heuristic */
1471                         if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
1472                             mode->rates[idx].rate > 200)
1473                                 mode->mode = HOSTAPD_MODE_IEEE80211G;
1474
1475                         if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
1476                                 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
1477
1478                         idx++;
1479                 }
1480         }
1481
1482         return NL_SKIP;
1483 }
1484
1485 static struct hostapd_hw_modes *i802_add_11b(struct hostapd_hw_modes *modes,
1486                                              u16 *num_modes)
1487 {
1488         u16 m;
1489         struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1490         int i, mode11g_idx = -1;
1491
1492         /* If only 802.11g mode is included, use it to construct matching
1493          * 802.11b mode data. */
1494
1495         for (m = 0; m < *num_modes; m++) {
1496                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1497                         return modes; /* 802.11b already included */
1498                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1499                         mode11g_idx = m;
1500         }
1501
1502         if (mode11g_idx < 0)
1503                 return modes; /* 2.4 GHz band not supported at all */
1504
1505         nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
1506         if (nmodes == NULL)
1507                 return modes; /* Could not add 802.11b mode */
1508
1509         mode = &nmodes[*num_modes];
1510         os_memset(mode, 0, sizeof(*mode));
1511         (*num_modes)++;
1512         modes = nmodes;
1513
1514         mode->mode = HOSTAPD_MODE_IEEE80211B;
1515
1516         mode11g = &modes[mode11g_idx];
1517         mode->num_channels = mode11g->num_channels;
1518         mode->channels = os_malloc(mode11g->num_channels *
1519                                    sizeof(struct hostapd_channel_data));
1520         if (mode->channels == NULL) {
1521                 (*num_modes)--;
1522                 return modes; /* Could not add 802.11b mode */
1523         }
1524         os_memcpy(mode->channels, mode11g->channels,
1525                   mode11g->num_channels * sizeof(struct hostapd_channel_data));
1526
1527         mode->num_rates = 0;
1528         mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
1529         if (mode->rates == NULL) {
1530                 os_free(mode->channels);
1531                 (*num_modes)--;
1532                 return modes; /* Could not add 802.11b mode */
1533         }
1534
1535         for (i = 0; i < mode11g->num_rates; i++) {
1536                 if (mode11g->rates[i].rate > 110 ||
1537                     mode11g->rates[i].flags &
1538                     (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
1539                         continue;
1540                 mode->rates[mode->num_rates] = mode11g->rates[i];
1541                 mode->num_rates++;
1542                 if (mode->num_rates == 4)
1543                         break;
1544         }
1545
1546         if (mode->num_rates == 0) {
1547                 os_free(mode->channels);
1548                 os_free(mode->rates);
1549                 (*num_modes)--;
1550                 return modes; /* No 802.11b rates */
1551         }
1552
1553         wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1554                    "information");
1555
1556         return modes;
1557 }
1558
1559 static struct hostapd_hw_modes *i802_get_hw_feature_data(void *priv,
1560                                                          u16 *num_modes,
1561                                                          u16 *flags)
1562 {
1563         struct i802_driver_data *drv = priv;
1564         struct nl_msg *msg;
1565         struct phy_info_arg result = {
1566                 .num_modes = num_modes,
1567                 .modes = NULL,
1568         };
1569
1570         *num_modes = 0;
1571         *flags = 0;
1572
1573         msg = nlmsg_alloc();
1574         if (!msg)
1575                 return NULL;
1576
1577         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1578                     0, NL80211_CMD_GET_WIPHY, 0);
1579
1580         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1581
1582         if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
1583                 return i802_add_11b(result.modes, num_modes);
1584  nla_put_failure:
1585         return NULL;
1586 }
1587
1588
1589 static int i802_set_sta_vlan(void *priv, const u8 *addr,
1590                              const char *ifname, int vlan_id)
1591 {
1592         struct i802_driver_data *drv = priv;
1593         struct nl_msg *msg;
1594
1595         msg = nlmsg_alloc();
1596         if (!msg)
1597                 return -ENOMEM;
1598
1599         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1600                     0, NL80211_CMD_SET_STATION, 0);
1601
1602         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1603                     if_nametoindex(drv->iface));
1604         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1605         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1606                     if_nametoindex(ifname));
1607
1608         return send_and_recv_msgs(drv, msg, NULL, NULL);
1609  nla_put_failure:
1610         return -ENOBUFS;
1611 }
1612
1613
1614 static int i802_set_country(void *priv, const char *country)
1615 {
1616         struct i802_driver_data *drv = priv;
1617         struct nl_msg *msg;
1618         char alpha2[3];
1619
1620         msg = nlmsg_alloc();
1621         if (!msg)
1622                 return -ENOMEM;
1623
1624         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1625                     0, NL80211_CMD_REQ_SET_REG, 0);
1626
1627         alpha2[0] = country[0];
1628         alpha2[1] = country[1];
1629         alpha2[2] = '\0';
1630         NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1631
1632         return send_and_recv_msgs(drv, msg, NULL, NULL);
1633  nla_put_failure:
1634         return -ENOBUFS;
1635 }
1636
1637
1638 static void handle_tx_callback(struct hostapd_data *hapd, u8 *buf, size_t len,
1639                                int ok)
1640 {
1641         struct ieee80211_hdr *hdr;
1642         u16 fc, type, stype;
1643
1644         hdr = (struct ieee80211_hdr *) buf;
1645         fc = le_to_host16(hdr->frame_control);
1646
1647         type = WLAN_FC_GET_TYPE(fc);
1648         stype = WLAN_FC_GET_STYPE(fc);
1649
1650         switch (type) {
1651         case WLAN_FC_TYPE_MGMT:
1652                 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
1653                            ok ? "ACK" : "fail");
1654                 ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
1655                 break;
1656         case WLAN_FC_TYPE_CTRL:
1657                 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
1658                            ok ? "ACK" : "fail");
1659                 break;
1660         case WLAN_FC_TYPE_DATA:
1661                 wpa_printf(MSG_DEBUG, "DATA (TX callback) %s",
1662                            ok ? "ACK" : "fail");
1663                 hostapd_tx_status(hapd, hdr->addr1, buf, len, ok);
1664                 break;
1665         default:
1666                 printf("unknown TX callback frame type %d\n", type);
1667                 break;
1668         }
1669 }
1670
1671
1672 static void handle_frame(struct i802_driver_data *drv,
1673                          struct hostapd_iface *iface, u8 *buf, size_t len,
1674                          struct hostapd_frame_info *hfi,
1675                          enum ieee80211_msg_type msg_type)
1676 {
1677         struct ieee80211_hdr *hdr;
1678         u16 fc, type, stype;
1679         size_t data_len = len;
1680         struct hostapd_data *hapd = NULL;
1681         int broadcast_bssid = 0;
1682         size_t i;
1683         u8 *bssid;
1684
1685         /*
1686          * PS-Poll frames are 16 bytes. All other frames are
1687          * 24 bytes or longer.
1688          */
1689         if (len < 16)
1690                 return;
1691
1692         hdr = (struct ieee80211_hdr *) buf;
1693         fc = le_to_host16(hdr->frame_control);
1694
1695         type = WLAN_FC_GET_TYPE(fc);
1696         stype = WLAN_FC_GET_STYPE(fc);
1697
1698         switch (type) {
1699         case WLAN_FC_TYPE_DATA:
1700                 if (len < 24)
1701                         return;
1702                 switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
1703                 case WLAN_FC_TODS:
1704                         bssid = hdr->addr1;
1705                         break;
1706                 default:
1707                         /* discard */
1708                         return;
1709                 }
1710                 break;
1711         case WLAN_FC_TYPE_CTRL:
1712                 /* discard non-ps-poll frames */
1713                 if (stype != WLAN_FC_STYPE_PSPOLL)
1714                         return;
1715                 bssid = hdr->addr1;
1716                 break;
1717         case WLAN_FC_TYPE_MGMT:
1718                 bssid = hdr->addr3;
1719                 break;
1720         default:
1721                 /* discard */
1722                 return;
1723         }
1724
1725         /* find interface frame belongs to */
1726         for (i = 0; i < iface->num_bss; i++) {
1727                 if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) {
1728                         hapd = iface->bss[i];
1729                         break;
1730                 }
1731         }
1732
1733         if (hapd == NULL) {
1734                 hapd = iface->bss[0];
1735
1736                 if (bssid[0] != 0xff || bssid[1] != 0xff ||
1737                     bssid[2] != 0xff || bssid[3] != 0xff ||
1738                     bssid[4] != 0xff || bssid[5] != 0xff) {
1739                         /*
1740                          * Unknown BSSID - drop frame if this is not from
1741                          * passive scanning or a beacon (at least ProbeReq
1742                          * frames to other APs may be allowed through RX
1743                          * filtering in the wlan hw/driver)
1744                          */
1745                         if ((type != WLAN_FC_TYPE_MGMT ||
1746                              stype != WLAN_FC_STYPE_BEACON))
1747                                 return;
1748                 } else
1749                         broadcast_bssid = 1;
1750         }
1751
1752         switch (msg_type) {
1753         case ieee80211_msg_normal:
1754                 /* continue processing */
1755                 break;
1756         case ieee80211_msg_tx_callback_ack:
1757                 handle_tx_callback(hapd, buf, data_len, 1);
1758                 return;
1759         case ieee80211_msg_tx_callback_fail:
1760                 handle_tx_callback(hapd, buf, data_len, 0);
1761                 return;
1762         }
1763
1764         switch (type) {
1765         case WLAN_FC_TYPE_MGMT:
1766                 if (stype != WLAN_FC_STYPE_BEACON &&
1767                     stype != WLAN_FC_STYPE_PROBE_REQ)
1768                         wpa_printf(MSG_MSGDUMP, "MGMT");
1769                 if (broadcast_bssid) {
1770                         for (i = 0; i < iface->num_bss; i++)
1771                                 ieee802_11_mgmt(iface->bss[i], buf, data_len,
1772                                                 stype, hfi);
1773                 } else
1774                         ieee802_11_mgmt(hapd, buf, data_len, stype, hfi);
1775                 break;
1776         case WLAN_FC_TYPE_CTRL:
1777                 /* can only get here with PS-Poll frames */
1778                 wpa_printf(MSG_DEBUG, "CTRL");
1779                 hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
1780                 break;
1781         case WLAN_FC_TYPE_DATA:
1782                 hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
1783                 break;
1784         }
1785 }
1786
1787
1788 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
1789 {
1790         struct i802_driver_data *drv = eloop_ctx;
1791         struct hostapd_data *hapd = drv->hapd;
1792         struct sockaddr_ll lladdr;
1793         unsigned char buf[3000];
1794         int len;
1795         socklen_t fromlen = sizeof(lladdr);
1796
1797         len = recvfrom(sock, buf, sizeof(buf), 0,
1798                        (struct sockaddr *)&lladdr, &fromlen);
1799         if (len < 0) {
1800                 perror("recv");
1801                 return;
1802         }
1803
1804         if (have_ifidx(drv, lladdr.sll_ifindex))
1805                 ieee802_1x_receive(hapd, lladdr.sll_addr, buf, len);
1806 }
1807
1808
1809 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
1810 {
1811         struct i802_driver_data *drv = eloop_ctx;
1812         int len;
1813         unsigned char buf[3000];
1814         struct hostapd_data *hapd = drv->hapd;
1815         struct ieee80211_radiotap_iterator iter;
1816         int ret;
1817         struct hostapd_frame_info hfi;
1818         int injected = 0, failed = 0, msg_type, rxflags = 0;
1819
1820         len = recv(sock, buf, sizeof(buf), 0);
1821         if (len < 0) {
1822                 perror("recv");
1823                 return;
1824         }
1825
1826         if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
1827                 printf("received invalid radiotap frame\n");
1828                 return;
1829         }
1830
1831         memset(&hfi, 0, sizeof(hfi));
1832
1833         while (1) {
1834                 ret = ieee80211_radiotap_iterator_next(&iter);
1835                 if (ret == -ENOENT)
1836                         break;
1837                 if (ret) {
1838                         printf("received invalid radiotap frame (%d)\n", ret);
1839                         return;
1840                 }
1841                 switch (iter.this_arg_index) {
1842                 case IEEE80211_RADIOTAP_FLAGS:
1843                         if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
1844                                 len -= 4;
1845                         break;
1846                 case IEEE80211_RADIOTAP_RX_FLAGS:
1847                         rxflags = 1;
1848                         break;
1849                 case IEEE80211_RADIOTAP_TX_FLAGS:
1850                         injected = 1;
1851                         failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
1852                                         IEEE80211_RADIOTAP_F_TX_FAIL;
1853                         break;
1854                 case IEEE80211_RADIOTAP_DATA_RETRIES:
1855                         break;
1856                 case IEEE80211_RADIOTAP_CHANNEL:
1857                         /* TODO convert from freq/flags to channel number
1858                         hfi.channel = XXX;
1859                         hfi.phytype = XXX;
1860                          */
1861                         break;
1862                 case IEEE80211_RADIOTAP_RATE:
1863                         hfi.datarate = *iter.this_arg * 5;
1864                         break;
1865                 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
1866                         hfi.ssi_signal = *iter.this_arg;
1867                         break;
1868                 }
1869         }
1870
1871         if (rxflags && injected)
1872                 return;
1873
1874         if (!injected)
1875                 msg_type = ieee80211_msg_normal;
1876         else if (failed)
1877                 msg_type = ieee80211_msg_tx_callback_fail;
1878         else
1879                 msg_type = ieee80211_msg_tx_callback_ack;
1880
1881         handle_frame(drv, hapd->iface, buf + iter.max_length,
1882                      len - iter.max_length, &hfi, msg_type);
1883 }
1884
1885
1886 static int nl80211_create_monitor_interface(struct i802_driver_data *drv)
1887 {
1888         char buf[IFNAMSIZ];
1889         struct sockaddr_ll ll;
1890         int optval;
1891         socklen_t optlen;
1892
1893         snprintf(buf, IFNAMSIZ, "mon.%s", drv->iface);
1894         buf[IFNAMSIZ - 1] = '\0';
1895
1896         drv->monitor_ifidx =
1897                 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
1898
1899         if (drv->monitor_ifidx < 0)
1900                 return -1;
1901
1902         if (hostapd_set_iface_flags(drv, buf, 1))
1903                 goto error;
1904
1905         memset(&ll, 0, sizeof(ll));
1906         ll.sll_family = AF_PACKET;
1907         ll.sll_ifindex = drv->monitor_ifidx;
1908         drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
1909         if (drv->monitor_sock < 0) {
1910                 perror("socket[PF_PACKET,SOCK_RAW]");
1911                 goto error;
1912         }
1913
1914         if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
1915                  sizeof(ll)) < 0) {
1916                 perror("monitor socket bind");
1917                 goto error;
1918         }
1919
1920         optlen = sizeof(optval);
1921         optval = 20;
1922         if (setsockopt
1923             (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
1924                 perror("Failed to set socket priority");
1925                 goto error;
1926         }
1927
1928         if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
1929                                      drv, NULL)) {
1930                 printf("Could not register monitor read socket\n");
1931                 goto error;
1932         }
1933
1934         return 0;
1935  error:
1936         nl80211_remove_iface(drv, drv->monitor_ifidx);
1937         return -1;
1938 }
1939
1940
1941 static int nl80211_set_master_mode(struct i802_driver_data *drv,
1942                                    const char *ifname)
1943 {
1944         struct nl_msg *msg;
1945         int ret = -ENOBUFS;
1946
1947         msg = nlmsg_alloc();
1948         if (!msg)
1949                 return -ENOMEM;
1950
1951         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1952                     0, NL80211_CMD_SET_INTERFACE, 0);
1953         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1954                     if_nametoindex(ifname));
1955         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_AP);
1956
1957         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1958         if (!ret)
1959                 return 0;
1960  nla_put_failure:
1961         wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
1962                    "mode.", ifname);
1963         return ret;
1964 }
1965
1966
1967 static int i802_init_sockets(struct i802_driver_data *drv, const u8 *bssid)
1968 {
1969         struct ifreq ifr;
1970         struct sockaddr_ll addr;
1971
1972         drv->ioctl_sock = -1;
1973
1974         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1975         if (drv->ioctl_sock < 0) {
1976                 perror("socket[PF_INET,SOCK_DGRAM]");
1977                 return -1;
1978         }
1979
1980         /* start listening for EAPOL on the default AP interface */
1981         add_ifidx(drv, if_nametoindex(drv->iface));
1982
1983         if (hostapd_set_iface_flags(drv, drv->iface, 0))
1984                 return -1;
1985
1986         if (bssid) {
1987                 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
1988                 memcpy(ifr.ifr_hwaddr.sa_data, bssid, ETH_ALEN);
1989                 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
1990
1991                 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
1992                         perror("ioctl(SIOCSIFHWADDR)");
1993                         return -1;
1994                 }
1995         }
1996
1997         /*
1998          * initialise generic netlink and nl80211
1999          */
2000         drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2001         if (!drv->nl_cb) {
2002                 printf("Failed to allocate netlink callbacks.\n");
2003                 return -1;
2004         }
2005
2006         drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
2007         if (!drv->nl_handle) {
2008                 printf("Failed to allocate netlink handle.\n");
2009                 return -1;
2010         }
2011
2012         if (genl_connect(drv->nl_handle)) {
2013                 printf("Failed to connect to generic netlink.\n");
2014                 return -1;
2015         }
2016
2017 #ifdef CONFIG_LIBNL20
2018         if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
2019                 printf("Failed to allocate generic netlink cache.\n");
2020                 return -1;
2021         }
2022 #else /* CONFIG_LIBNL20 */
2023         drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
2024         if (!drv->nl_cache) {
2025                 printf("Failed to allocate generic netlink cache.\n");
2026                 return -1;
2027         }
2028 #endif /* CONFIG_LIBNL20 */
2029
2030         drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
2031         if (!drv->nl80211) {
2032                 printf("nl80211 not found.\n");
2033                 return -1;
2034         }
2035
2036         /* Initialise a monitor interface */
2037         if (nl80211_create_monitor_interface(drv))
2038                 return -1;
2039
2040         if (nl80211_set_master_mode(drv, drv->iface))
2041                 goto fail1;
2042
2043         if (hostapd_set_iface_flags(drv, drv->iface, 1))
2044                 goto fail1;
2045
2046         memset(&addr, 0, sizeof(addr));
2047         addr.sll_family = AF_PACKET;
2048         addr.sll_ifindex = ifr.ifr_ifindex;
2049         wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
2050                    addr.sll_ifindex);
2051
2052         drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
2053         if (drv->eapol_sock < 0) {
2054                 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
2055                 goto fail1;
2056         }
2057
2058         if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
2059         {
2060                 printf("Could not register read socket for eapol\n");
2061                 return -1;
2062         }
2063
2064         memset(&ifr, 0, sizeof(ifr));
2065         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
2066         if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
2067                 perror("ioctl(SIOCGIFHWADDR)");
2068                 goto fail1;
2069         }
2070
2071         if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
2072                 printf("Invalid HW-addr family 0x%04x\n",
2073                        ifr.ifr_hwaddr.sa_family);
2074                 goto fail1;
2075         }
2076         memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
2077
2078         return 0;
2079
2080 fail1:
2081         nl80211_remove_iface(drv, drv->monitor_ifidx);
2082         return -1;
2083 }
2084
2085
2086 static int i802_get_inact_sec(void *priv, const u8 *addr)
2087 {
2088         struct hostap_sta_driver_data data;
2089         int ret;
2090
2091         data.inactive_msec = (unsigned long) -1;
2092         ret = i802_read_sta_data(priv, &data, addr);
2093         if (ret || data.inactive_msec == (unsigned long) -1)
2094                 return -1;
2095         return data.inactive_msec / 1000;
2096 }
2097
2098
2099 static int i802_sta_clear_stats(void *priv, const u8 *addr)
2100 {
2101 #if 0
2102         /* TODO */
2103 #endif
2104         return 0;
2105 }
2106
2107
2108 static void
2109 hostapd_wireless_event_wireless_custom(struct i802_driver_data *drv,
2110                                        char *custom)
2111 {
2112         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
2113
2114         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
2115                 char *pos;
2116                 u8 addr[ETH_ALEN];
2117                 pos = strstr(custom, "addr=");
2118                 if (pos == NULL) {
2119                         wpa_printf(MSG_DEBUG,
2120                                    "MLME-MICHAELMICFAILURE.indication "
2121                                    "without sender address ignored");
2122                         return;
2123                 }
2124                 pos += 5;
2125                 if (hwaddr_aton(pos, addr) == 0) {
2126                         ieee80211_michael_mic_failure(drv->hapd, addr, 1);
2127                 } else {
2128                         wpa_printf(MSG_DEBUG,
2129                                    "MLME-MICHAELMICFAILURE.indication "
2130                                    "with invalid MAC address");
2131                 }
2132         }
2133 }
2134
2135
2136 static void hostapd_wireless_event_wireless(struct i802_driver_data *drv,
2137                                             char *data, int len)
2138 {
2139         struct iw_event iwe_buf, *iwe = &iwe_buf;
2140         char *pos, *end, *custom, *buf;
2141
2142         pos = data;
2143         end = data + len;
2144
2145         while (pos + IW_EV_LCP_LEN <= end) {
2146                 /* Event data may be unaligned, so make a local, aligned copy
2147                  * before processing. */
2148                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
2149                 wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
2150                            iwe->cmd, iwe->len);
2151                 if (iwe->len <= IW_EV_LCP_LEN)
2152                         return;
2153
2154                 custom = pos + IW_EV_POINT_LEN;
2155                 if (drv->we_version > 18 &&
2156                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
2157                      iwe->cmd == IWEVCUSTOM)) {
2158                         /* WE-19 removed the pointer from struct iw_point */
2159                         char *dpos = (char *) &iwe_buf.u.data.length;
2160                         int dlen = dpos - (char *) &iwe_buf;
2161                         memcpy(dpos, pos + IW_EV_LCP_LEN,
2162                                sizeof(struct iw_event) - dlen);
2163                 } else {
2164                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
2165                         custom += IW_EV_POINT_OFF;
2166                 }
2167
2168                 switch (iwe->cmd) {
2169                 case IWEVCUSTOM:
2170                         if (custom + iwe->u.data.length > end)
2171                                 return;
2172                         buf = malloc(iwe->u.data.length + 1);
2173                         if (buf == NULL)
2174                                 return;
2175                         memcpy(buf, custom, iwe->u.data.length);
2176                         buf[iwe->u.data.length] = '\0';
2177                         hostapd_wireless_event_wireless_custom(drv, buf);
2178                         free(buf);
2179                         break;
2180                 }
2181
2182                 pos += iwe->len;
2183         }
2184 }
2185
2186
2187 static void hostapd_wireless_event_rtm_newlink(struct i802_driver_data *drv,
2188                                                struct nlmsghdr *h, int len)
2189 {
2190         struct ifinfomsg *ifi;
2191         int attrlen, nlmsg_len, rta_len;
2192         struct rtattr *attr;
2193
2194         if (len < (int) sizeof(*ifi))
2195                 return;
2196
2197         ifi = NLMSG_DATA(h);
2198
2199         /* TODO: use ifi->ifi_index to filter out wireless events from other
2200          * interfaces */
2201
2202         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
2203
2204         attrlen = h->nlmsg_len - nlmsg_len;
2205         if (attrlen < 0)
2206                 return;
2207
2208         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
2209
2210         rta_len = RTA_ALIGN(sizeof(struct rtattr));
2211         while (RTA_OK(attr, attrlen)) {
2212                 if (attr->rta_type == IFLA_WIRELESS) {
2213                         hostapd_wireless_event_wireless(
2214                                 drv, ((char *) attr) + rta_len,
2215                                 attr->rta_len - rta_len);
2216                 }
2217                 attr = RTA_NEXT(attr, attrlen);
2218         }
2219 }
2220
2221
2222 static void hostapd_wireless_event_receive(int sock, void *eloop_ctx,
2223                                            void *sock_ctx)
2224 {
2225         char buf[256];
2226         int left;
2227         struct sockaddr_nl from;
2228         socklen_t fromlen;
2229         struct nlmsghdr *h;
2230         struct i802_driver_data *drv = eloop_ctx;
2231
2232         fromlen = sizeof(from);
2233         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
2234                         (struct sockaddr *) &from, &fromlen);
2235         if (left < 0) {
2236                 if (errno != EINTR && errno != EAGAIN)
2237                         perror("recvfrom(netlink)");
2238                 return;
2239         }
2240
2241         h = (struct nlmsghdr *) buf;
2242         while (left >= (int) sizeof(*h)) {
2243                 int len, plen;
2244
2245                 len = h->nlmsg_len;
2246                 plen = len - sizeof(*h);
2247                 if (len > left || plen < 0) {
2248                         printf("Malformed netlink message: "
2249                                "len=%d left=%d plen=%d\n",
2250                                len, left, plen);
2251                         break;
2252                 }
2253
2254                 switch (h->nlmsg_type) {
2255                 case RTM_NEWLINK:
2256                         hostapd_wireless_event_rtm_newlink(drv, h, plen);
2257                         break;
2258                 }
2259
2260                 len = NLMSG_ALIGN(len);
2261                 left -= len;
2262                 h = (struct nlmsghdr *) ((char *) h + len);
2263         }
2264
2265         if (left > 0) {
2266                 printf("%d extra bytes in the end of netlink message\n", left);
2267         }
2268 }
2269
2270
2271 static int hostap_get_we_version(struct i802_driver_data *drv)
2272 {
2273         struct iw_range *range;
2274         struct iwreq iwr;
2275         int minlen;
2276         size_t buflen;
2277
2278         drv->we_version = 0;
2279
2280         /*
2281          * Use larger buffer than struct iw_range in order to allow the
2282          * structure to grow in the future.
2283          */
2284         buflen = sizeof(struct iw_range) + 500;
2285         range = os_zalloc(buflen);
2286         if (range == NULL)
2287                 return -1;
2288
2289         memset(&iwr, 0, sizeof(iwr));
2290         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
2291         iwr.u.data.pointer = (caddr_t) range;
2292         iwr.u.data.length = buflen;
2293
2294         minlen = ((char *) &range->enc_capa) - (char *) range +
2295                 sizeof(range->enc_capa);
2296
2297         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
2298                 perror("ioctl[SIOCGIWRANGE]");
2299                 free(range);
2300                 return -1;
2301         } else if (iwr.u.data.length >= minlen &&
2302                    range->we_version_compiled >= 18) {
2303                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
2304                            "WE(source)=%d enc_capa=0x%x",
2305                            range->we_version_compiled,
2306                            range->we_version_source,
2307                            range->enc_capa);
2308                 drv->we_version = range->we_version_compiled;
2309         }
2310
2311         free(range);
2312         return 0;
2313 }
2314
2315
2316 static int i802_wireless_event_init(void *priv)
2317 {
2318         struct i802_driver_data *drv = priv;
2319         int s;
2320         struct sockaddr_nl local;
2321
2322         hostap_get_we_version(drv);
2323
2324         drv->wext_sock = -1;
2325
2326         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
2327         if (s < 0) {
2328                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
2329                 return -1;
2330         }
2331
2332         memset(&local, 0, sizeof(local));
2333         local.nl_family = AF_NETLINK;
2334         local.nl_groups = RTMGRP_LINK;
2335         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
2336                 perror("bind(netlink)");
2337                 close(s);
2338                 return -1;
2339         }
2340
2341         eloop_register_read_sock(s, hostapd_wireless_event_receive, drv,
2342                                  NULL);
2343         drv->wext_sock = s;
2344
2345         return 0;
2346 }
2347
2348
2349 static void i802_wireless_event_deinit(void *priv)
2350 {
2351         struct i802_driver_data *drv = priv;
2352         if (drv->wext_sock < 0)
2353                 return;
2354         eloop_unregister_read_sock(drv->wext_sock);
2355         close(drv->wext_sock);
2356 }
2357
2358
2359 static int i802_sta_deauth(void *priv, const u8 *addr, int reason)
2360 {
2361         struct i802_driver_data *drv = priv;
2362         struct ieee80211_mgmt mgmt;
2363
2364         memset(&mgmt, 0, sizeof(mgmt));
2365         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
2366                                           WLAN_FC_STYPE_DEAUTH);
2367         memcpy(mgmt.da, addr, ETH_ALEN);
2368         memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
2369         memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
2370         mgmt.u.deauth.reason_code = host_to_le16(reason);
2371         return i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
2372                                       sizeof(mgmt.u.deauth), 0);
2373 }
2374
2375
2376 static int i802_sta_disassoc(void *priv, const u8 *addr, int reason)
2377 {
2378         struct i802_driver_data *drv = priv;
2379         struct ieee80211_mgmt mgmt;
2380
2381         memset(&mgmt, 0, sizeof(mgmt));
2382         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
2383                                           WLAN_FC_STYPE_DISASSOC);
2384         memcpy(mgmt.da, addr, ETH_ALEN);
2385         memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
2386         memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
2387         mgmt.u.disassoc.reason_code = host_to_le16(reason);
2388         return  i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
2389                                        sizeof(mgmt.u.disassoc), 0);
2390 }
2391
2392
2393 static void *i802_init_bssid(struct hostapd_data *hapd, const u8 *bssid)
2394 {
2395         struct i802_driver_data *drv;
2396
2397         drv = os_zalloc(sizeof(struct i802_driver_data));
2398         if (drv == NULL) {
2399                 printf("Could not allocate memory for i802 driver data\n");
2400                 return NULL;
2401         }
2402
2403         drv->hapd = hapd;
2404         memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
2405
2406         drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
2407         drv->if_indices = drv->default_if_indices;
2408         drv->bridge = if_nametoindex(hapd->conf->bridge);
2409
2410         if (i802_init_sockets(drv, bssid))
2411                 goto failed;
2412
2413         return drv;
2414
2415 failed:
2416         free(drv);
2417         return NULL;
2418 }
2419
2420
2421 static void *i802_init(struct hostapd_data *hapd)
2422 {
2423         return i802_init_bssid(hapd, NULL);
2424 }
2425
2426
2427 static void i802_deinit(void *priv)
2428 {
2429         struct i802_driver_data *drv = priv;
2430
2431         if (drv->last_freq_ht) {
2432                 /* Clear HT flags from the driver */
2433                 struct hostapd_freq_params freq;
2434                 os_memset(&freq, 0, sizeof(freq));
2435                 freq.freq = drv->last_freq;
2436                 i802_set_freq2(priv, &freq);
2437         }
2438
2439         i802_del_beacon(drv);
2440
2441         /* remove monitor interface */
2442         nl80211_remove_iface(drv, drv->monitor_ifidx);
2443
2444         (void) hostapd_set_iface_flags(drv, drv->iface, 0);
2445
2446         if (drv->monitor_sock >= 0) {
2447                 eloop_unregister_read_sock(drv->monitor_sock);
2448                 close(drv->monitor_sock);
2449         }
2450         if (drv->ioctl_sock >= 0)
2451                 close(drv->ioctl_sock);
2452         if (drv->eapol_sock >= 0) {
2453                 eloop_unregister_read_sock(drv->eapol_sock);
2454                 close(drv->eapol_sock);
2455         }
2456
2457         genl_family_put(drv->nl80211);
2458         nl_cache_free(drv->nl_cache);
2459         nl_handle_destroy(drv->nl_handle);
2460         nl_cb_put(drv->nl_cb);
2461
2462         if (drv->if_indices != drv->default_if_indices)
2463                 free(drv->if_indices);
2464
2465         free(drv);
2466 }
2467
2468
2469 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
2470         .name = "nl80211",
2471         .init = i802_init,
2472         .init_bssid = i802_init_bssid,
2473         .deinit = i802_deinit,
2474         .wireless_event_init = i802_wireless_event_init,
2475         .wireless_event_deinit = i802_wireless_event_deinit,
2476         .set_ieee8021x = i802_set_ieee8021x,
2477         .set_privacy = i802_set_privacy,
2478         .set_encryption = i802_set_encryption,
2479         .get_seqnum = i802_get_seqnum,
2480         .flush = i802_flush,
2481         .read_sta_data = i802_read_sta_data,
2482         .send_eapol = i802_send_eapol,
2483         .sta_set_flags = i802_sta_set_flags,
2484         .sta_deauth = i802_sta_deauth,
2485         .sta_disassoc = i802_sta_disassoc,
2486         .sta_remove = i802_sta_remove,
2487         .send_mgmt_frame = i802_send_mgmt_frame,
2488         .sta_add2 = i802_sta_add2,
2489         .get_inact_sec = i802_get_inact_sec,
2490         .sta_clear_stats = i802_sta_clear_stats,
2491         .set_freq2 = i802_set_freq2,
2492         .set_rts = i802_set_rts,
2493         .get_rts = i802_get_rts,
2494         .set_frag = i802_set_frag,
2495         .get_frag = i802_get_frag,
2496         .set_retry = i802_set_retry,
2497         .get_retry = i802_get_retry,
2498         .set_rate_sets = i802_set_rate_sets,
2499         .set_regulatory_domain = i802_set_regulatory_domain,
2500         .set_beacon = i802_set_beacon,
2501         .set_internal_bridge = i802_set_internal_bridge,
2502         .set_beacon_int = i802_set_beacon_int,
2503         .set_dtim_period = i802_set_dtim_period,
2504         .set_cts_protect = i802_set_cts_protect,
2505         .set_preamble = i802_set_preamble,
2506         .set_short_slot_time = i802_set_short_slot_time,
2507         .set_tx_queue_params = i802_set_tx_queue_params,
2508         .bss_add = i802_bss_add,
2509         .bss_remove = i802_bss_remove,
2510         .if_add = i802_if_add,
2511         .if_update = i802_if_update,
2512         .if_remove = i802_if_remove,
2513         .get_hw_feature_data = i802_get_hw_feature_data,
2514         .set_sta_vlan = i802_set_sta_vlan,
2515         .set_country = i802_set_country,
2516 };