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