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 #include "ieee802_11_defs.h"
  40
  41 #ifdef CONFIG_LIBNL20
  42 /* libnl 2.0 compatibility code */
  43 #define nl_handle_alloc_cb nl_socket_alloc_cb
  44 #define nl_handle_destroy nl_socket_free
  45 #endif /* CONFIG_LIBNL20 */
  46
  47 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
  48
  49 enum ieee80211_msg_type {
  50         ieee80211_msg_normal = 0,
  51         ieee80211_msg_tx_callback_ack = 1,
  52         ieee80211_msg_tx_callback_fail = 2,
  53 };
  54
  55 struct i802_driver_data {
  56         struct hostapd_data *hapd;
  57
  58         char iface[IFNAMSIZ + 1];
  59         int bridge;
  60         int ioctl_sock; /* socket for ioctl() use */
  61         int wext_sock; /* socket for wireless events */
  62         int eapol_sock; /* socket for EAPOL frames */
  63         int monitor_sock; /* socket for monitor */
  64         int monitor_ifidx;
  65
  66         int default_if_indices[16];
  67         int *if_indices;
  68         int num_if_indices;
  69
  70         int we_version;
  71         struct nl_handle *nl_handle;
  72         struct nl_cache *nl_cache;
  73         struct nl_cb *nl_cb;
  74         struct genl_family *nl80211;
  75         int dtim_period, beacon_int;
  76         unsigned int beacon_set:1;
  77         unsigned int ieee802_1x_active:1;
  78
  79         int last_freq;
  80         int last_freq_ht;
  81 };
  82
  83
  84 static int i802_sta_deauth(void *priv, const u8 *addr, int reason);
  85 static int i802_sta_disassoc(void *priv, const u8 *addr, int reason);
  86
  87
  88 static void add_ifidx(struct i802_driver_data *drv, int ifidx)
  89 {
  90         int i;
  91         int *old;
  92
  93         for (i = 0; i < drv->num_if_indices; i++) {
  94                 if (drv->if_indices[i] == 0) {
  95                         drv->if_indices[i] = ifidx;
  96                         return;
  97                 }
  98         }
  99
 100         if (drv->if_indices != drv->default_if_indices)
 101                 old = drv->if_indices;
 102         else
 103                 old = NULL;
 104
 105         drv->if_indices = realloc(old,
 106                                   sizeof(int) * (drv->num_if_indices + 1));
 107         if (!drv->if_indices) {
 108                 if (!old)
 109                         drv->if_indices = drv->default_if_indices;
 110                 else
 111                         drv->if_indices = old;
 112                 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
 113                            "interfaces");
 114                 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
 115                 return;
 116         }
 117         drv->if_indices[drv->num_if_indices] = ifidx;
 118         drv->num_if_indices++;
 119 }
 120
 121
 122 static void del_ifidx(struct i802_driver_data *drv, int ifidx)
 123 {
 124         int i;
 125
 126         for (i = 0; i < drv->num_if_indices; i++) {
 127                 if (drv->if_indices[i] == ifidx) {
 128                         drv->if_indices[i] = 0;
 129                         break;
 130                 }
 131         }
 132 }
 133
 134
 135 static int have_ifidx(struct i802_driver_data *drv, int ifidx)
 136 {
 137         int i;
 138
 139         if (ifidx == drv->bridge)
 140                 return 1;
 141
 142         for (i = 0; i < drv->num_if_indices; i++)
 143                 if (drv->if_indices[i] == ifidx)
 144                         return 1;
 145
 146         return 0;
 147 }
 148
 149
 150 /* nl80211 code */
 151 static int ack_handler(struct nl_msg *msg, void *arg)
 152 {
 153         int *err = arg;
 154         *err = 0;
 155         return NL_STOP;
 156 }
 157
 158 static int finish_handler(struct nl_msg *msg, void *arg)
 159 {
 160         int *ret = arg;
 161         *ret = 0;
 162         return NL_SKIP;
 163 }
 164
 165 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
 166                          void *arg)
 167 {
 168         int *ret = arg;
 169         *ret = err->error;
 170         return NL_SKIP;
 171 }
 172
 173 static int send_and_recv_msgs(struct i802_driver_data *drv,
 174                               struct nl_msg *msg,
 175                               int (*valid_handler)(struct nl_msg *, void *),
 176                               void *valid_data)
 177 {
 178         struct nl_cb *cb;
 179         int err = -ENOMEM;
 180
 181         cb = nl_cb_clone(drv->nl_cb);
 182         if (!cb)
 183                 goto out;
 184
 185         err = nl_send_auto_complete(drv->nl_handle, msg);
 186         if (err < 0)
 187                 goto out;
 188
 189         err = 1;
 190
 191         nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
 192         nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
 193         nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
 194
 195         if (valid_handler)
 196                 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
 197                           valid_handler, valid_data);
 198
 199         while (err > 0)
 200                 nl_recvmsgs(drv->nl_handle, cb);
 201  out:
 202         nl_cb_put(cb);
 203         nlmsg_free(msg);
 204         return err;
 205 }
 206
 207 static int hostapd_set_iface_flags(struct i802_driver_data *drv,
 208                                    const char *ifname, int dev_up)
 209 {
 210         struct ifreq ifr;
 211
 212         if (drv->ioctl_sock < 0)
 213                 return -1;
 214
 215         memset(&ifr, 0, sizeof(ifr));
 216         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 217
 218         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
 219                 perror("ioctl[SIOCGIFFLAGS]");
 220                 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
 221                            drv->iface);
 222                 return -1;
 223         }
 224
 225         if (dev_up)
 226                 ifr.ifr_flags |= IFF_UP;
 227         else
 228                 ifr.ifr_flags &= ~IFF_UP;
 229
 230         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
 231                 perror("ioctl[SIOCSIFFLAGS]");
 232                 return -1;
 233         }
 234
 235         return 0;
 236 }
 237
 238
 239 static int nl_set_encr(int ifindex, struct i802_driver_data *drv,
 240                        const char *alg, const u8 *addr, int idx, const u8 *key,
 241                        size_t key_len, int txkey)
 242 {
 243         struct nl_msg *msg;
 244         int ret;
 245
 246         msg = nlmsg_alloc();
 247         if (!msg)
 248                 return -ENOMEM;
 249
 250         if (strcmp(alg, "none") == 0) {
 251                 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 252                             0, NL80211_CMD_DEL_KEY, 0);
 253         } else {
 254                 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 255                             0, NL80211_CMD_NEW_KEY, 0);
 256                 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
 257                 if (strcmp(alg, "WEP") == 0) {
 258                         if (key_len == 5)
 259                                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
 260                                             0x000FAC01);
 261                         else
 262                                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
 263                                             0x000FAC05);
 264                 } else if (strcmp(alg, "TKIP") == 0)
 265                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
 266                 else if (strcmp(alg, "CCMP") == 0)
 267                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
 268                 else if (strcmp(alg, "IGTK") == 0)
 269                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC06);
 270                 else {
 271                         wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
 272                                    "algorithm '%s'", __func__, alg);
 273                         nlmsg_free(msg);
 274                         return -1;
 275                 }
 276         }
 277
 278         if (addr)
 279                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 280         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 281         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
 282
 283         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 284         if (ret == -ENOENT)
 285                 ret = 0;
 286
 287         /*
 288          * If we failed or don't need to set the default TX key (below),
 289          * we're done here.
 290          */
 291         if (ret || !txkey || addr)
 292                 return ret;
 293
 294         msg = nlmsg_alloc();
 295         if (!msg)
 296                 return -ENOMEM;
 297
 298         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 299                     0, NL80211_CMD_SET_KEY, 0);
 300         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 301         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
 302         if (strcmp(alg, "IGTK") == 0)
 303                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
 304         else
 305                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
 306
 307         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 308         if (ret == -ENOENT)
 309                 ret = 0;
 310         return ret;
 311  nla_put_failure:
 312         return -ENOBUFS;
 313 }
 314
 315
 316 static int i802_set_encryption(const char *iface, void *priv, const char *alg,
 317                                const u8 *addr, int idx, const u8 *key,
 318                                size_t key_len, int txkey)
 319 {
 320         struct i802_driver_data *drv = priv;
 321         int ret;
 322
 323         ret = nl_set_encr(if_nametoindex(iface), drv, alg, addr, idx, key,
 324                           key_len, txkey);
 325         if (ret < 0)
 326                 return ret;
 327
 328         return ret;
 329 }
 330
 331
 332 static inline int min_int(int a, int b)
 333 {
 334         if (a < b)
 335                 return a;
 336         return b;
 337 }
 338
 339
 340 static int get_key_handler(struct nl_msg *msg, void *arg)
 341 {
 342         struct nlattr *tb[NL80211_ATTR_MAX + 1];
 343         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 344
 345         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 346                   genlmsg_attrlen(gnlh, 0), NULL);
 347
 348         /*
 349          * TODO: validate the key index and mac address!
 350          * Otherwise, there's a race condition as soon as
 351          * the kernel starts sending key notifications.
 352          */
 353
 354         if (tb[NL80211_ATTR_KEY_SEQ])
 355                 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
 356                        min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
 357         return NL_SKIP;
 358 }
 359
 360
 361 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
 362                            int idx, u8 *seq)
 363 {
 364         struct i802_driver_data *drv = priv;
 365         struct nl_msg *msg;
 366
 367         msg = nlmsg_alloc();
 368         if (!msg)
 369                 return -ENOMEM;
 370
 371         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 372                     0, NL80211_CMD_GET_KEY, 0);
 373
 374         if (addr)
 375                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 376         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 377         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
 378
 379         memset(seq, 0, 6);
 380
 381         return send_and_recv_msgs(drv, msg, get_key_handler, seq);
 382  nla_put_failure:
 383         return -ENOBUFS;
 384 }
 385
 386
 387 static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
 388                               int mode)
 389 {
 390         struct i802_driver_data *drv = priv;
 391         struct nl_msg *msg;
 392         u8 rates[NL80211_MAX_SUPP_RATES];
 393         u8 rates_len = 0;
 394         int i;
 395
 396         msg = nlmsg_alloc();
 397         if (!msg)
 398                 return -ENOMEM;
 399
 400         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
 401                     NL80211_CMD_SET_BSS, 0);
 402
 403         for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
 404                 rates[rates_len++] = basic_rates[i] / 5;
 405
 406         NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
 407
 408         /* TODO: multi-BSS support */
 409         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 410
 411         return send_and_recv_msgs(drv, msg, NULL, NULL);
 412  nla_put_failure:
 413         return -ENOBUFS;
 414 }
 415
 416
 417 static int i802_send_frame(void *priv, const void *data, size_t len,
 418                            int encrypt, int flags)
 419 {
 420         __u8 rtap_hdr[] = {
 421                 0x00, 0x00, /* radiotap version */
 422                 0x0e, 0x00, /* radiotap length */
 423                 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
 424                 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
 425                 0x00,       /* padding */
 426                 0x00, 0x00, /* RX and TX flags to indicate that */
 427                 0x00, 0x00, /* this is the injected frame directly */
 428         };
 429         struct i802_driver_data *drv = priv;
 430         struct iovec iov[2] = {
 431                 {
 432                         .iov_base = &rtap_hdr,
 433                         .iov_len = sizeof(rtap_hdr),
 434                 },
 435                 {
 436                         .iov_base = (void*)data,
 437                         .iov_len = len,
 438                 }
 439         };
 440         struct msghdr msg = {
 441                 .msg_name = NULL,
 442                 .msg_namelen = 0,
 443                 .msg_iov = iov,
 444                 .msg_iovlen = 2,
 445                 .msg_control = NULL,
 446                 .msg_controllen = 0,
 447                 .msg_flags = 0,
 448         };
 449
 450         if (encrypt)
 451                 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
 452
 453         return sendmsg(drv->monitor_sock, &msg, flags);
 454 }
 455
 456 static int i802_send_mgmt_frame(void *priv, const void *data, size_t len,
 457                                 int flags)
 458 {
 459         struct ieee80211_mgmt *mgmt;
 460         int do_not_encrypt = 0;
 461         u16 fc;
 462
 463         mgmt = (struct ieee80211_mgmt *) data;
 464         fc = le_to_host16(mgmt->frame_control);
 465
 466         if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
 467             WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
 468                 /*
 469                  * Only one of the authentication frame types is encrypted.
 470                  * In order for static WEP encryption to work properly (i.e.,
 471                  * to not encrypt the frame), we need to tell mac80211 about
 472                  * the frames that must not be encrypted.
 473                  */
 474                 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
 475                 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
 476                 if (auth_alg == WLAN_AUTH_OPEN ||
 477                     (auth_alg == WLAN_AUTH_SHARED_KEY && auth_trans != 3))
 478                         do_not_encrypt = 1;
 479         }
 480
 481         return i802_send_frame(priv, data, len, !do_not_encrypt, flags);
 482 }
 483
 484 /* Set kernel driver on given frequency (MHz) */
 485 static int i802_set_freq2(void *priv, struct hostapd_freq_params *freq)
 486 {
 487         struct i802_driver_data *drv = priv;
 488         struct nl_msg *msg;
 489
 490         msg = nlmsg_alloc();
 491         if (!msg)
 492                 return -1;
 493
 494         drv->last_freq = freq->freq;
 495         drv->last_freq_ht = freq->ht_enabled;
 496
 497         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
 498                     NL80211_CMD_SET_WIPHY, 0);
 499
 500         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 501         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
 502         if (freq->ht_enabled) {
 503                 switch (freq->sec_channel_offset) {
 504                 case -1:
 505                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 506                                     NL80211_CHAN_HT40MINUS);
 507                         break;
 508                 case 1:
 509                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 510                                     NL80211_CHAN_HT40PLUS);
 511                         break;
 512                 default:
 513                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 514                                     NL80211_CHAN_HT20);
 515                         break;
 516                 }
 517         }
 518
 519         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 520                 return 0;
 521  nla_put_failure:
 522         return -1;
 523 }
 524
 525
 526 static int i802_set_rts(void *priv, int rts)
 527 {
 528         struct i802_driver_data *drv = priv;
 529         struct iwreq iwr;
 530
 531         memset(&iwr, 0, sizeof(iwr));
 532         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 533         iwr.u.rts.value = rts;
 534         iwr.u.rts.fixed = 1;
 535
 536         if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
 537                 perror("ioctl[SIOCSIWRTS]");
 538                 return -1;
 539         }
 540
 541         return 0;
 542 }
 543
 544
 545 static int i802_get_rts(void *priv, int *rts)
 546 {
 547         struct i802_driver_data *drv = priv;
 548         struct iwreq iwr;
 549
 550         memset(&iwr, 0, sizeof(iwr));
 551         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 552
 553         if (ioctl(drv->ioctl_sock, SIOCGIWRTS, &iwr) < 0) {
 554                 perror("ioctl[SIOCGIWRTS]");
 555                 return -1;
 556         }
 557
 558         *rts = iwr.u.rts.value;
 559
 560         return 0;
 561 }
 562
 563
 564 static int i802_set_frag(void *priv, int frag)
 565 {
 566         struct i802_driver_data *drv = priv;
 567         struct iwreq iwr;
 568
 569         memset(&iwr, 0, sizeof(iwr));
 570         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 571         iwr.u.frag.value = frag;
 572         iwr.u.frag.fixed = 1;
 573
 574         if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
 575                 perror("ioctl[SIOCSIWFRAG]");
 576                 return -1;
 577         }
 578
 579         return 0;
 580 }
 581
 582
 583 static int i802_get_frag(void *priv, int *frag)
 584 {
 585         struct i802_driver_data *drv = priv;
 586         struct iwreq iwr;
 587
 588         memset(&iwr, 0, sizeof(iwr));
 589         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 590
 591         if (ioctl(drv->ioctl_sock, SIOCGIWFRAG, &iwr) < 0) {
 592                 perror("ioctl[SIOCGIWFRAG]");
 593                 return -1;
 594         }
 595
 596         *frag = iwr.u.frag.value;
 597
 598         return 0;
 599 }
 600
 601
 602 static int i802_set_retry(void *priv, int short_retry, int long_retry)
 603 {
 604         struct i802_driver_data *drv = priv;
 605         struct iwreq iwr;
 606
 607         memset(&iwr, 0, sizeof(iwr));
 608         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 609
 610         iwr.u.retry.value = short_retry;
 611         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
 612         if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
 613                 perror("ioctl[SIOCSIWRETRY(short)]");
 614                 return -1;
 615         }
 616
 617         iwr.u.retry.value = long_retry;
 618         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 619         if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
 620                 perror("ioctl[SIOCSIWRETRY(long)]");
 621                 return -1;
 622         }
 623
 624         return 0;
 625 }
 626
 627
 628 static int i802_get_retry(void *priv, int *short_retry, int *long_retry)
 629 {
 630         struct i802_driver_data *drv = priv;
 631         struct iwreq iwr;
 632
 633         memset(&iwr, 0, sizeof(iwr));
 634         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 635
 636         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
 637         if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
 638                 perror("ioctl[SIOCGIWFRAG(short)]");
 639                 return -1;
 640         }
 641         *short_retry = iwr.u.retry.value;
 642
 643         iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 644         if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
 645                 perror("ioctl[SIOCGIWFRAG(long)]");
 646                 return -1;
 647         }
 648         *long_retry = iwr.u.retry.value;
 649
 650         return 0;
 651 }
 652
 653
 654 static int i802_flush(void *priv)
 655 {
 656         struct i802_driver_data *drv = priv;
 657         struct nl_msg *msg;
 658
 659         msg = nlmsg_alloc();
 660         if (!msg)
 661                 return -1;
 662
 663         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 664                     0, NL80211_CMD_DEL_STATION, 0);
 665
 666         /*
 667          * XXX: FIX! this needs to flush all VLANs too
 668          */
 669         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 670                     if_nametoindex(drv->iface));
 671
 672         return send_and_recv_msgs(drv, msg, NULL, NULL);
 673  nla_put_failure:
 674         return -ENOBUFS;
 675 }
 676
 677
 678 static int get_sta_handler(struct nl_msg *msg, void *arg)
 679 {
 680         struct nlattr *tb[NL80211_ATTR_MAX + 1];
 681         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 682         struct hostap_sta_driver_data *data = arg;
 683         struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
 684         static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
 685                 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
 686                 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
 687                 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
 688         };
 689
 690         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 691                   genlmsg_attrlen(gnlh, 0), NULL);
 692
 693         /*
 694          * TODO: validate the interface and mac address!
 695          * Otherwise, there's a race condition as soon as
 696          * the kernel starts sending station notifications.
 697          */
 698
 699         if (!tb[NL80211_ATTR_STA_INFO]) {
 700                 wpa_printf(MSG_DEBUG, "sta stats missing!");
 701                 return NL_SKIP;
 702         }
 703         if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
 704                              tb[NL80211_ATTR_STA_INFO],
 705                              stats_policy)) {
 706                 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
 707                 return NL_SKIP;
 708         }
 709
 710         if (stats[NL80211_STA_INFO_INACTIVE_TIME])
 711                 data->inactive_msec =
 712                         nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
 713         if (stats[NL80211_STA_INFO_RX_BYTES])
 714                 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
 715         if (stats[NL80211_STA_INFO_TX_BYTES])
 716                 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
 717
 718         return NL_SKIP;
 719 }
 720
 721 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
 722                               const u8 *addr)
 723 {
 724         struct i802_driver_data *drv = priv;
 725         struct nl_msg *msg;
 726
 727         msg = nlmsg_alloc();
 728         if (!msg)
 729                 return -ENOMEM;
 730
 731         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 732                     0, NL80211_CMD_GET_STATION, 0);
 733
 734         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 735         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 736
 737         return send_and_recv_msgs(drv, msg, get_sta_handler, data);
 738  nla_put_failure:
 739         return -ENOBUFS;
 740 }
 741
 742
 743 static int i802_send_eapol(void *priv, const u8 *addr, const u8 *data,
 744                            size_t data_len, int encrypt, const u8 *own_addr)
 745 {
 746         struct i802_driver_data *drv = priv;
 747         struct ieee80211_hdr *hdr;
 748         size_t len;
 749         u8 *pos;
 750         int res;
 751 #if 0 /* FIX */
 752         int qos = sta->flags & WLAN_STA_WME;
 753 #else
 754         int qos = 0;
 755 #endif
 756
 757         len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
 758                 data_len;
 759         hdr = os_zalloc(len);
 760         if (hdr == NULL) {
 761                 printf("malloc() failed for i802_send_data(len=%lu)\n",
 762                        (unsigned long) len);
 763                 return -1;
 764         }
 765
 766         hdr->frame_control =
 767                 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
 768         hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
 769         if (encrypt)
 770                 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
 771 #if 0 /* To be enabled if qos determination is added above */
 772         if (qos) {
 773                 hdr->frame_control |=
 774                         host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
 775         }
 776 #endif
 777
 778         memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
 779         memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
 780         memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
 781         pos = (u8 *) (hdr + 1);
 782
 783 #if 0 /* To be enabled if qos determination is added above */
 784         if (qos) {
 785                 /* add an empty QoS header if needed */
 786                 pos[0] = 0;
 787                 pos[1] = 0;
 788                 pos += 2;
 789         }
 790 #endif
 791
 792         memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
 793         pos += sizeof(rfc1042_header);
 794         WPA_PUT_BE16(pos, ETH_P_PAE);
 795         pos += 2;
 796         memcpy(pos, data, data_len);
 797
 798         res = i802_send_frame(drv, (u8 *) hdr, len, encrypt, 0);
 799         free(hdr);
 800
 801         if (res < 0) {
 802                 perror("i802_send_eapol: send");
 803                 printf("i802_send_eapol - packet len: %lu - failed\n",
 804                        (unsigned long) len);
 805         }
 806
 807         return res;
 808 }
 809
 810
 811 static int i802_sta_add2(const char *ifname, void *priv,
 812                          struct hostapd_sta_add_params *params)
 813 {
 814         struct i802_driver_data *drv = priv;
 815         struct nl_msg *msg;
 816         int ret = -ENOBUFS;
 817
 818         msg = nlmsg_alloc();
 819         if (!msg)
 820                 return -ENOMEM;
 821
 822         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 823                     0, NL80211_CMD_NEW_STATION, 0);
 824
 825         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 826                     if_nametoindex(drv->iface));
 827         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
 828         NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
 829         NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
 830                 params->supp_rates);
 831         NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
 832                     params->listen_interval);
 833
 834 #ifdef CONFIG_IEEE80211N
 835         if (params->ht_capabilities) {
 836                 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
 837                         params->ht_capabilities->length,
 838                         &params->ht_capabilities->data);
 839         }
 840 #endif /* CONFIG_IEEE80211N */
 841
 842         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 843         if (ret == -EEXIST)
 844                 ret = 0;
 845  nla_put_failure:
 846         return ret;
 847 }
 848
 849
 850 static int i802_sta_remove(void *priv, const u8 *addr)
 851 {
 852         struct i802_driver_data *drv = priv;
 853         struct nl_msg *msg;
 854         int ret;
 855
 856         msg = nlmsg_alloc();
 857         if (!msg)
 858                 return -ENOMEM;
 859
 860         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 861                     0, NL80211_CMD_DEL_STATION, 0);
 862
 863         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 864                     if_nametoindex(drv->iface));
 865         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 866
 867         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 868         if (ret == -ENOENT)
 869                 return 0;
 870         return ret;
 871  nla_put_failure:
 872         return -ENOBUFS;
 873 }
 874
 875
 876 static int i802_sta_set_flags(void *priv, const u8 *addr,
 877                               int total_flags, int flags_or, int flags_and)
 878 {
 879         struct i802_driver_data *drv = priv;
 880         struct nl_msg *msg, *flags = NULL;
 881
 882         msg = nlmsg_alloc();
 883         if (!msg)
 884                 return -ENOMEM;
 885
 886         flags = nlmsg_alloc();
 887         if (!flags) {
 888                 nlmsg_free(msg);
 889                 return -ENOMEM;
 890         }
 891
 892         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 893                     0, NL80211_CMD_SET_STATION, 0);
 894
 895         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
 896                     if_nametoindex(drv->iface));
 897         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 898
 899         if (total_flags & WLAN_STA_AUTHORIZED || !drv->ieee802_1x_active)
 900                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
 901
 902         if (total_flags & WLAN_STA_WME)
 903                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
 904
 905         if (total_flags & WLAN_STA_SHORT_PREAMBLE)
 906                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
 907
 908         if (total_flags & WLAN_STA_MFP)
 909                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
 910
 911         if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
 912                 goto nla_put_failure;
 913
 914         nlmsg_free(flags);
 915
 916         return send_and_recv_msgs(drv, msg, NULL, NULL);
 917  nla_put_failure:
 918         nlmsg_free(flags);
 919         return -ENOBUFS;
 920 }
 921
 922
 923 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
 924                                     int cw_min, int cw_max, int burst_time)
 925 {
 926         struct i802_driver_data *drv = priv;
 927         struct nl_msg *msg;
 928         struct nlattr *txq, *params;
 929
 930         msg = nlmsg_alloc();
 931         if (!msg)
 932                 return -1;
 933
 934         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 935                     0, NL80211_CMD_SET_WIPHY, 0);
 936
 937         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 938
 939         txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
 940         if (!txq)
 941                 goto nla_put_failure;
 942
 943         /* We are only sending parameters for a single TXQ at a time */
 944         params = nla_nest_start(msg, 1);
 945         if (!params)
 946                 goto nla_put_failure;
 947
 948         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
 949         /* Burst time is configured in units of 0.1 msec and TXOP parameter in
 950          * 32 usec, so need to convert the value here. */
 951         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
 952         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
 953         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
 954         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
 955
 956         nla_nest_end(msg, params);
 957
 958         nla_nest_end(msg, txq);
 959
 960         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 961                 return 0;
 962  nla_put_failure:
 963         return -1;
 964 }
 965
 966
 967 static void nl80211_remove_iface(struct i802_driver_data *drv, int ifidx)
 968 {
 969         struct nl_msg *msg;
 970
 971         /* stop listening for EAPOL on this interface */
 972         del_ifidx(drv, ifidx);
 973
 974         msg = nlmsg_alloc();
 975         if (!msg)
 976                 goto nla_put_failure;
 977
 978         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 979                     0, NL80211_CMD_DEL_INTERFACE, 0);
 980         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
 981
 982         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 983                 return;
 984  nla_put_failure:
 985         printf("Failed to remove interface.\n");
 986 }
 987
 988
 989 static int nl80211_create_iface(struct i802_driver_data *drv,
 990                                 const char *ifname,
 991                                 enum nl80211_iftype iftype,
 992                                 const u8 *addr)
 993 {
 994         struct nl_msg *msg, *flags = NULL;
 995         int ifidx;
 996         struct ifreq ifreq;
 997         struct iwreq iwr;
 998         int ret = -ENOBUFS;
 999
1000         msg = nlmsg_alloc();
1001         if (!msg)
1002                 return -1;
1003
1004         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1005                     0, NL80211_CMD_NEW_INTERFACE, 0);
1006         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1007         NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
1008         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
1009
1010         if (iftype == NL80211_IFTYPE_MONITOR) {
1011                 int err;
1012
1013                 flags = nlmsg_alloc();
1014                 if (!flags)
1015                         goto nla_put_failure;
1016
1017                 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
1018
1019                 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
1020
1021                 nlmsg_free(flags);
1022
1023                 if (err)
1024                         goto nla_put_failure;
1025         }
1026
1027         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1028         if (ret) {
1029  nla_put_failure:
1030                 printf("Failed to create interface %s.\n", ifname);
1031                 return ret;
1032         }
1033
1034         ifidx = if_nametoindex(ifname);
1035
1036         if (ifidx <= 0)
1037                 return -1;
1038
1039         /* start listening for EAPOL on this interface */
1040         add_ifidx(drv, ifidx);
1041
1042         if (addr) {
1043                 switch (iftype) {
1044                 case NL80211_IFTYPE_AP:
1045                         os_strlcpy(ifreq.ifr_name, ifname, IFNAMSIZ);
1046                         memcpy(ifreq.ifr_hwaddr.sa_data, addr, ETH_ALEN);
1047                         ifreq.ifr_hwaddr.sa_family = ARPHRD_ETHER;
1048
1049                         if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifreq)) {
1050                                 nl80211_remove_iface(drv, ifidx);
1051                                 return -1;
1052                         }
1053                         break;
1054                 case NL80211_IFTYPE_WDS:
1055                         memset(&iwr, 0, sizeof(iwr));
1056                         os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
1057                         iwr.u.addr.sa_family = ARPHRD_ETHER;
1058                         memcpy(iwr.u.addr.sa_data, addr, ETH_ALEN);
1059                         if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr))
1060                                 return -1;
1061                         break;
1062                 default:
1063                         /* nothing */
1064                         break;
1065                 }
1066         }
1067
1068         return ifidx;
1069 }
1070
1071
1072 static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
1073 {
1074         int ifidx;
1075
1076         /*
1077          * The kernel supports that when the low-level driver does,
1078          * but we currently don't because we need per-BSS data that
1079          * currently we can't handle easily.
1080          */
1081         return -1;
1082
1083         ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
1084         if (ifidx < 0)
1085                 return -1;
1086         if (hostapd_set_iface_flags(priv, ifname, 1)) {
1087                 nl80211_remove_iface(priv, ifidx);
1088                 return -1;
1089         }
1090         return 0;
1091 }
1092
1093
1094 static int i802_bss_remove(void *priv, const char *ifname)
1095 {
1096         nl80211_remove_iface(priv, if_nametoindex(ifname));
1097         return 0;
1098 }
1099
1100
1101 static int i802_set_beacon(const char *iface, void *priv,
1102                            u8 *head, size_t head_len,
1103                            u8 *tail, size_t tail_len)
1104 {
1105         struct i802_driver_data *drv = priv;
1106         struct nl_msg *msg;
1107         u8 cmd = NL80211_CMD_NEW_BEACON;
1108         int ret;
1109
1110         msg = nlmsg_alloc();
1111         if (!msg)
1112                 return -ENOMEM;
1113
1114         if (drv->beacon_set)
1115                 cmd = NL80211_CMD_SET_BEACON;
1116
1117         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1118                     0, cmd, 0);
1119         NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
1120         NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
1121         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
1122         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
1123
1124         if (!drv->dtim_period)
1125                 drv->dtim_period = 2;
1126         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
1127
1128         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1129         if (!ret)
1130                 drv->beacon_set = 1;
1131         return ret;
1132  nla_put_failure:
1133         return -ENOBUFS;
1134 }
1135
1136
1137 static int i802_del_beacon(struct i802_driver_data *drv)
1138 {
1139         struct nl_msg *msg;
1140
1141         msg = nlmsg_alloc();
1142         if (!msg)
1143                 return -ENOMEM;
1144
1145         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1146                     0, NL80211_CMD_DEL_BEACON, 0);
1147         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1148
1149         return send_and_recv_msgs(drv, msg, NULL, NULL);
1150  nla_put_failure:
1151         return -ENOBUFS;
1152 }
1153
1154
1155 static int i802_set_ieee8021x(const char *ifname, void *priv, int enabled)
1156 {
1157         struct i802_driver_data *drv = priv;
1158
1159         /*
1160          * FIXME: This needs to be per interface (BSS)
1161          */
1162         drv->ieee802_1x_active = enabled;
1163         return 0;
1164 }
1165
1166
1167 static int i802_set_privacy(const char *ifname, void *priv, int enabled)
1168 {
1169         struct i802_driver_data *drv = priv;
1170         struct iwreq iwr;
1171
1172         memset(&iwr, 0, sizeof(iwr));
1173
1174         os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
1175         iwr.u.param.flags = IW_AUTH_PRIVACY_INVOKED;
1176         iwr.u.param.value = enabled;
1177
1178         ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr);
1179
1180         /* ignore errors, the kernel/driver might not care */
1181         return 0;
1182 }
1183
1184
1185 static int i802_set_internal_bridge(void *priv, int value)
1186 {
1187         return -1;
1188 }
1189
1190
1191 static int i802_set_beacon_int(void *priv, int value)
1192 {
1193         struct i802_driver_data *drv = priv;
1194         struct nl_msg *msg;
1195
1196         drv->beacon_int = value;
1197
1198         if (!drv->beacon_set)
1199                 return 0;
1200
1201         msg = nlmsg_alloc();
1202         if (!msg)
1203                 return -ENOMEM;
1204
1205         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1206                     0, NL80211_CMD_SET_BEACON, 0);
1207         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1208
1209         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
1210
1211         return send_and_recv_msgs(drv, msg, NULL, NULL);
1212  nla_put_failure:
1213         return -ENOBUFS;
1214 }
1215
1216
1217 static int i802_set_dtim_period(const char *iface, void *priv, int value)
1218 {
1219         struct i802_driver_data *drv = priv;
1220         struct nl_msg *msg;
1221
1222         msg = nlmsg_alloc();
1223         if (!msg)
1224                 return -ENOMEM;
1225
1226         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1227                     0, NL80211_CMD_SET_BEACON, 0);
1228         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
1229
1230         drv->dtim_period = value;
1231         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
1232
1233         return send_and_recv_msgs(drv, msg, NULL, NULL);
1234  nla_put_failure:
1235         return -ENOBUFS;
1236 }
1237
1238
1239 static int i802_set_bss(void *priv, int cts, int preamble, int slot)
1240 {
1241         struct i802_driver_data *drv = priv;
1242         struct nl_msg *msg;
1243
1244         msg = nlmsg_alloc();
1245         if (!msg)
1246                 return -ENOMEM;
1247
1248         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1249                     NL80211_CMD_SET_BSS, 0);
1250
1251         if (cts >= 0)
1252                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
1253         if (preamble >= 0)
1254                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
1255         if (slot >= 0)
1256                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
1257
1258         /* TODO: multi-BSS support */
1259         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1260
1261         return send_and_recv_msgs(drv, msg, NULL, NULL);
1262  nla_put_failure:
1263         return -ENOBUFS;
1264 }
1265
1266
1267 static int i802_set_cts_protect(void *priv, int value)
1268 {
1269         return i802_set_bss(priv, value, -1, -1);
1270 }
1271
1272
1273 static int i802_set_preamble(void *priv, int value)
1274 {
1275         return i802_set_bss(priv, -1, value, -1);
1276 }
1277
1278
1279 static int i802_set_short_slot_time(void *priv, int value)
1280 {
1281         return i802_set_bss(priv, -1, -1, value);
1282 }
1283
1284
1285 static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
1286 {
1287         switch (type) {
1288         case HOSTAPD_IF_VLAN:
1289                 return NL80211_IFTYPE_AP_VLAN;
1290         case HOSTAPD_IF_WDS:
1291                 return NL80211_IFTYPE_WDS;
1292         }
1293         return -1;
1294 }
1295
1296
1297 static int i802_if_add(const char *iface, void *priv,
1298                        enum hostapd_driver_if_type type, char *ifname,
1299                        const u8 *addr)
1300 {
1301         if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
1302                 return -1;
1303         return 0;
1304 }
1305
1306
1307 static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
1308                           char *ifname, const u8 *addr)
1309 {
1310         /* unused at the moment */
1311         return -1;
1312 }
1313
1314
1315 static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
1316                           const char *ifname, const u8 *addr)
1317 {
1318         nl80211_remove_iface(priv, if_nametoindex(ifname));
1319         return 0;
1320 }
1321
1322
1323 struct phy_info_arg {
1324         u16 *num_modes;
1325         struct hostapd_hw_modes *modes;
1326 };
1327
1328 static int phy_info_handler(struct nl_msg *msg, void *arg)
1329 {
1330         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1331         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1332         struct phy_info_arg *phy_info = arg;
1333
1334         struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1335
1336         struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1337         static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1338                 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1339                 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1340                 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
1341                 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
1342                 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1343                 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1344         };
1345
1346         struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1347         static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1348                 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1349                 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
1350         };
1351
1352         struct nlattr *nl_band;
1353         struct nlattr *nl_freq;
1354         struct nlattr *nl_rate;
1355         int rem_band, rem_freq, rem_rate;
1356         struct hostapd_hw_modes *mode;
1357         int idx, mode_is_set;
1358
1359         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1360                   genlmsg_attrlen(gnlh, 0), NULL);
1361
1362         if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1363                 return NL_SKIP;
1364
1365         nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
1366                 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
1367                 if (!mode)
1368                         return NL_SKIP;
1369                 phy_info->modes = mode;
1370
1371                 mode_is_set = 0;
1372
1373                 mode = &phy_info->modes[*(phy_info->num_modes)];
1374                 memset(mode, 0, sizeof(*mode));
1375                 *(phy_info->num_modes) += 1;
1376
1377                 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1378                           nla_len(nl_band), NULL);
1379
1380                 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1381                         nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1382                                   nla_len(nl_freq), freq_policy);
1383                         if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1384                                 continue;
1385                         mode->num_channels++;
1386                 }
1387
1388                 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
1389                 if (!mode->channels)
1390                         return NL_SKIP;
1391
1392                 idx = 0;
1393
1394                 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1395                         nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1396                                   nla_len(nl_freq), freq_policy);
1397                         if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1398                                 continue;
1399
1400                         mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1401                         mode->channels[idx].flag = 0;
1402
1403                         if (!mode_is_set) {
1404                                 /* crude heuristic */
1405                                 if (mode->channels[idx].freq < 4000)
1406                                         mode->mode = HOSTAPD_MODE_IEEE80211B;
1407                                 else
1408                                         mode->mode = HOSTAPD_MODE_IEEE80211A;
1409                                 mode_is_set = 1;
1410                         }
1411
1412                         /* crude heuristic */
1413                         if (mode->channels[idx].freq < 4000)
1414                                 if (mode->channels[idx].freq == 2848)
1415                                         mode->channels[idx].chan = 14;
1416                                 else
1417                                         mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
1418                         else
1419                                 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
1420
1421                         if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1422                                 mode->channels[idx].flag |=
1423                                         HOSTAPD_CHAN_DISABLED;
1424                         if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
1425                                 mode->channels[idx].flag |=
1426                                         HOSTAPD_CHAN_PASSIVE_SCAN;
1427                         if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
1428                                 mode->channels[idx].flag |=
1429                                         HOSTAPD_CHAN_NO_IBSS;
1430                         if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1431                                 mode->channels[idx].flag |=
1432                                         HOSTAPD_CHAN_RADAR;
1433
1434                         if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
1435                             !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1436                                 mode->channels[idx].max_tx_power =
1437                                         nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
1438
1439                         idx++;
1440                 }
1441
1442                 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1443                         nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1444                                   nla_len(nl_rate), rate_policy);
1445                         if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1446                                 continue;
1447                         mode->num_rates++;
1448                 }
1449
1450                 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
1451                 if (!mode->rates)
1452                         return NL_SKIP;
1453
1454                 idx = 0;
1455
1456                 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1457                         nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1458                                   nla_len(nl_rate), rate_policy);
1459                         if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1460                                 continue;
1461                         mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
1462
1463                         /* crude heuristic */
1464                         if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
1465                             mode->rates[idx].rate > 200)
1466                                 mode->mode = HOSTAPD_MODE_IEEE80211G;
1467
1468                         if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
1469                                 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
1470
1471                         idx++;
1472                 }
1473         }
1474
1475         return NL_SKIP;
1476 }
1477
1478 static struct hostapd_hw_modes *i802_add_11b(struct hostapd_hw_modes *modes,
1479                                              u16 *num_modes)
1480 {
1481         u16 m;
1482         struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1483         int i, mode11g_idx = -1;
1484
1485         /* If only 802.11g mode is included, use it to construct matching
1486          * 802.11b mode data. */
1487
1488         for (m = 0; m < *num_modes; m++) {
1489                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1490                         return modes; /* 802.11b already included */
1491                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1492                         mode11g_idx = m;
1493         }
1494
1495         if (mode11g_idx < 0)
1496                 return modes; /* 2.4 GHz band not supported at all */
1497
1498         nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
1499         if (nmodes == NULL)
1500                 return modes; /* Could not add 802.11b mode */
1501
1502         mode = &nmodes[*num_modes];
1503         os_memset(mode, 0, sizeof(*mode));
1504         (*num_modes)++;
1505         modes = nmodes;
1506
1507         mode->mode = HOSTAPD_MODE_IEEE80211B;
1508
1509         mode11g = &modes[mode11g_idx];
1510         mode->num_channels = mode11g->num_channels;
1511         mode->channels = os_malloc(mode11g->num_channels *
1512                                    sizeof(struct hostapd_channel_data));
1513         if (mode->channels == NULL) {
1514                 (*num_modes)--;
1515                 return modes; /* Could not add 802.11b mode */
1516         }
1517         os_memcpy(mode->channels, mode11g->channels,
1518                   mode11g->num_channels * sizeof(struct hostapd_channel_data));
1519
1520         mode->num_rates = 0;
1521         mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
1522         if (mode->rates == NULL) {
1523                 os_free(mode->channels);
1524                 (*num_modes)--;
1525                 return modes; /* Could not add 802.11b mode */
1526         }
1527
1528         for (i = 0; i < mode11g->num_rates; i++) {
1529                 if (mode11g->rates[i].rate > 110 ||
1530                     mode11g->rates[i].flags &
1531                     (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
1532                         continue;
1533                 mode->rates[mode->num_rates] = mode11g->rates[i];
1534                 mode->num_rates++;
1535                 if (mode->num_rates == 4)
1536                         break;
1537         }
1538
1539         if (mode->num_rates == 0) {
1540                 os_free(mode->channels);
1541                 os_free(mode->rates);
1542                 (*num_modes)--;
1543                 return modes; /* No 802.11b rates */
1544         }
1545
1546         wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1547                    "information");
1548
1549         return modes;
1550 }
1551
1552 static struct hostapd_hw_modes *i802_get_hw_feature_data(void *priv,
1553                                                          u16 *num_modes,
1554                                                          u16 *flags)
1555 {
1556         struct i802_driver_data *drv = priv;
1557         struct nl_msg *msg;
1558         struct phy_info_arg result = {
1559                 .num_modes = num_modes,
1560                 .modes = NULL,
1561         };
1562
1563         *num_modes = 0;
1564         *flags = 0;
1565
1566         msg = nlmsg_alloc();
1567         if (!msg)
1568                 return NULL;
1569
1570         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1571                     0, NL80211_CMD_GET_WIPHY, 0);
1572
1573         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1574
1575         if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
1576                 return i802_add_11b(result.modes, num_modes);
1577  nla_put_failure:
1578         return NULL;
1579 }
1580
1581
1582 static int i802_set_sta_vlan(void *priv, const u8 *addr,
1583                              const char *ifname, int vlan_id)
1584 {
1585         struct i802_driver_data *drv = priv;
1586         struct nl_msg *msg;
1587
1588         msg = nlmsg_alloc();
1589         if (!msg)
1590                 return -ENOMEM;
1591
1592         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1593                     0, NL80211_CMD_SET_STATION, 0);
1594
1595         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1596                     if_nametoindex(drv->iface));
1597         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1598         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1599                     if_nametoindex(ifname));
1600
1601         return send_and_recv_msgs(drv, msg, NULL, NULL);
1602  nla_put_failure:
1603         return -ENOBUFS;
1604 }
1605
1606
1607 static int i802_set_country(void *priv, const char *country)
1608 {
1609         struct i802_driver_data *drv = priv;
1610         struct nl_msg *msg;
1611         char alpha2[3];
1612
1613         msg = nlmsg_alloc();
1614         if (!msg)
1615                 return -ENOMEM;
1616
1617         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1618                     0, NL80211_CMD_REQ_SET_REG, 0);
1619
1620         alpha2[0] = country[0];
1621         alpha2[1] = country[1];
1622         alpha2[2] = '\0';
1623         NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1624
1625         return send_and_recv_msgs(drv, msg, NULL, NULL);
1626  nla_put_failure:
1627         return -ENOBUFS;
1628 }
1629
1630
1631 static void handle_tx_callback(struct hostapd_data *hapd, u8 *buf, size_t len,
1632                                int ok)
1633 {
1634         struct ieee80211_hdr *hdr;
1635         u16 fc, type, stype;
1636
1637         hdr = (struct ieee80211_hdr *) buf;
1638         fc = le_to_host16(hdr->frame_control);
1639
1640         type = WLAN_FC_GET_TYPE(fc);
1641         stype = WLAN_FC_GET_STYPE(fc);
1642
1643         switch (type) {
1644         case WLAN_FC_TYPE_MGMT:
1645                 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
1646                            ok ? "ACK" : "fail");
1647                 hostapd_mgmt_tx_cb(hapd, buf, len, stype, ok);
1648                 break;
1649         case WLAN_FC_TYPE_CTRL:
1650                 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
1651                            ok ? "ACK" : "fail");
1652                 break;
1653         case WLAN_FC_TYPE_DATA:
1654                 wpa_printf(MSG_DEBUG, "DATA (TX callback) %s",
1655                            ok ? "ACK" : "fail");
1656                 hostapd_tx_status(hapd, hdr->addr1, buf, len, ok);
1657                 break;
1658         default:
1659                 printf("unknown TX callback frame type %d\n", type);
1660                 break;
1661         }
1662 }
1663
1664
1665 static void handle_frame(struct i802_driver_data *drv,
1666                          struct hostapd_iface *iface, u8 *buf, size_t len,
1667                          struct hostapd_frame_info *hfi,
1668                          enum ieee80211_msg_type msg_type)
1669 {
1670         struct ieee80211_hdr *hdr;
1671         u16 fc, type, stype;
1672         size_t data_len = len;
1673         struct hostapd_data *hapd = NULL;
1674         int broadcast_bssid = 0;
1675         size_t i;
1676         u8 *bssid;
1677
1678         /*
1679          * PS-Poll frames are 16 bytes. All other frames are
1680          * 24 bytes or longer.
1681          */
1682         if (len < 16)
1683                 return;
1684
1685         hdr = (struct ieee80211_hdr *) buf;
1686         fc = le_to_host16(hdr->frame_control);
1687
1688         type = WLAN_FC_GET_TYPE(fc);
1689         stype = WLAN_FC_GET_STYPE(fc);
1690
1691         switch (type) {
1692         case WLAN_FC_TYPE_DATA:
1693                 if (len < 24)
1694                         return;
1695                 switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
1696                 case WLAN_FC_TODS:
1697                         bssid = hdr->addr1;
1698                         break;
1699                 default:
1700                         /* discard */
1701                         return;
1702                 }
1703                 break;
1704         case WLAN_FC_TYPE_CTRL:
1705                 /* discard non-ps-poll frames */
1706                 if (stype != WLAN_FC_STYPE_PSPOLL)
1707                         return;
1708                 bssid = hdr->addr1;
1709                 break;
1710         case WLAN_FC_TYPE_MGMT:
1711                 bssid = hdr->addr3;
1712                 break;
1713         default:
1714                 /* discard */
1715                 return;
1716         }
1717
1718         /* find interface frame belongs to */
1719         for (i = 0; i < iface->num_bss; i++) {
1720                 if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) {
1721                         hapd = iface->bss[i];
1722                         break;
1723                 }
1724         }
1725
1726         if (hapd == NULL) {
1727                 hapd = iface->bss[0];
1728
1729                 if (bssid[0] != 0xff || bssid[1] != 0xff ||
1730                     bssid[2] != 0xff || bssid[3] != 0xff ||
1731                     bssid[4] != 0xff || bssid[5] != 0xff) {
1732                         /*
1733                          * Unknown BSSID - drop frame if this is not from
1734                          * passive scanning or a beacon (at least ProbeReq
1735                          * frames to other APs may be allowed through RX
1736                          * filtering in the wlan hw/driver)
1737                          */
1738                         if ((type != WLAN_FC_TYPE_MGMT ||
1739                              stype != WLAN_FC_STYPE_BEACON))
1740                                 return;
1741                 } else
1742                         broadcast_bssid = 1;
1743         }
1744
1745         switch (msg_type) {
1746         case ieee80211_msg_normal:
1747                 /* continue processing */
1748                 break;
1749         case ieee80211_msg_tx_callback_ack:
1750                 handle_tx_callback(hapd, buf, data_len, 1);
1751                 return;
1752         case ieee80211_msg_tx_callback_fail:
1753                 handle_tx_callback(hapd, buf, data_len, 0);
1754                 return;
1755         }
1756
1757         switch (type) {
1758         case WLAN_FC_TYPE_MGMT:
1759                 if (stype != WLAN_FC_STYPE_BEACON &&
1760                     stype != WLAN_FC_STYPE_PROBE_REQ)
1761                         wpa_printf(MSG_MSGDUMP, "MGMT");
1762                 if (broadcast_bssid) {
1763                         for (i = 0; i < iface->num_bss; i++)
1764                                 hostapd_mgmt_rx(iface->bss[i], buf, data_len,
1765                                                 stype, hfi);
1766                 } else
1767                         hostapd_mgmt_rx(hapd, buf, data_len, stype, hfi);
1768                 break;
1769         case WLAN_FC_TYPE_CTRL:
1770                 /* can only get here with PS-Poll frames */
1771                 wpa_printf(MSG_DEBUG, "CTRL");
1772                 hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
1773                 break;
1774         case WLAN_FC_TYPE_DATA:
1775                 hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
1776                 break;
1777         }
1778 }
1779
1780
1781 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
1782 {
1783         struct i802_driver_data *drv = eloop_ctx;
1784         struct hostapd_data *hapd = drv->hapd;
1785         struct sockaddr_ll lladdr;
1786         unsigned char buf[3000];
1787         int len;
1788         socklen_t fromlen = sizeof(lladdr);
1789
1790         len = recvfrom(sock, buf, sizeof(buf), 0,
1791                        (struct sockaddr *)&lladdr, &fromlen);
1792         if (len < 0) {
1793                 perror("recv");
1794                 return;
1795         }
1796
1797         if (have_ifidx(drv, lladdr.sll_ifindex))
1798                 hostapd_eapol_receive(hapd, lladdr.sll_addr, buf, len);
1799 }
1800
1801
1802 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
1803 {
1804         struct i802_driver_data *drv = eloop_ctx;
1805         int len;
1806         unsigned char buf[3000];
1807         struct hostapd_data *hapd = drv->hapd;
1808         struct ieee80211_radiotap_iterator iter;
1809         int ret;
1810         struct hostapd_frame_info hfi;
1811         int injected = 0, failed = 0, msg_type, rxflags = 0;
1812
1813         len = recv(sock, buf, sizeof(buf), 0);
1814         if (len < 0) {
1815                 perror("recv");
1816                 return;
1817         }
1818
1819         if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
1820                 printf("received invalid radiotap frame\n");
1821                 return;
1822         }
1823
1824         memset(&hfi, 0, sizeof(hfi));
1825
1826         while (1) {
1827                 ret = ieee80211_radiotap_iterator_next(&iter);
1828                 if (ret == -ENOENT)
1829                         break;
1830                 if (ret) {
1831                         printf("received invalid radiotap frame (%d)\n", ret);
1832                         return;
1833                 }
1834                 switch (iter.this_arg_index) {
1835                 case IEEE80211_RADIOTAP_FLAGS:
1836                         if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
1837                                 len -= 4;
1838                         break;
1839                 case IEEE80211_RADIOTAP_RX_FLAGS:
1840                         rxflags = 1;
1841                         break;
1842                 case IEEE80211_RADIOTAP_TX_FLAGS:
1843                         injected = 1;
1844                         failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
1845                                         IEEE80211_RADIOTAP_F_TX_FAIL;
1846                         break;
1847                 case IEEE80211_RADIOTAP_DATA_RETRIES:
1848                         break;
1849                 case IEEE80211_RADIOTAP_CHANNEL:
1850                         /* TODO convert from freq/flags to channel number
1851                         hfi.channel = XXX;
1852                         hfi.phytype = XXX;
1853                          */
1854                         break;
1855                 case IEEE80211_RADIOTAP_RATE:
1856                         hfi.datarate = *iter.this_arg * 5;
1857                         break;
1858                 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
1859                         hfi.ssi_signal = *iter.this_arg;
1860                         break;
1861                 }
1862         }
1863
1864         if (rxflags && injected)
1865                 return;
1866
1867         if (!injected)
1868                 msg_type = ieee80211_msg_normal;
1869         else if (failed)
1870                 msg_type = ieee80211_msg_tx_callback_fail;
1871         else
1872                 msg_type = ieee80211_msg_tx_callback_ack;
1873
1874         handle_frame(drv, hapd->iface, buf + iter.max_length,
1875                      len - iter.max_length, &hfi, msg_type);
1876 }
1877
1878
1879 static int nl80211_create_monitor_interface(struct i802_driver_data *drv)
1880 {
1881         char buf[IFNAMSIZ];
1882         struct sockaddr_ll ll;
1883         int optval;
1884         socklen_t optlen;
1885
1886         snprintf(buf, IFNAMSIZ, "mon.%s", drv->iface);
1887         buf[IFNAMSIZ - 1] = '\0';
1888
1889         drv->monitor_ifidx =
1890                 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
1891
1892         if (drv->monitor_ifidx < 0)
1893                 return -1;
1894
1895         if (hostapd_set_iface_flags(drv, buf, 1))
1896                 goto error;
1897
1898         memset(&ll, 0, sizeof(ll));
1899         ll.sll_family = AF_PACKET;
1900         ll.sll_ifindex = drv->monitor_ifidx;
1901         drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
1902         if (drv->monitor_sock < 0) {
1903                 perror("socket[PF_PACKET,SOCK_RAW]");
1904                 goto error;
1905         }
1906
1907         if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
1908                  sizeof(ll)) < 0) {
1909                 perror("monitor socket bind");
1910                 goto error;
1911         }
1912
1913         optlen = sizeof(optval);
1914         optval = 20;
1915         if (setsockopt
1916             (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
1917                 perror("Failed to set socket priority");
1918                 goto error;
1919         }
1920
1921         if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
1922                                      drv, NULL)) {
1923                 printf("Could not register monitor read socket\n");
1924                 goto error;
1925         }
1926
1927         return 0;
1928  error:
1929         nl80211_remove_iface(drv, drv->monitor_ifidx);
1930         return -1;
1931 }
1932
1933
1934 static int nl80211_set_master_mode(struct i802_driver_data *drv,
1935                                    const char *ifname)
1936 {
1937         struct nl_msg *msg;
1938         int ret = -ENOBUFS;
1939
1940         msg = nlmsg_alloc();
1941         if (!msg)
1942                 return -ENOMEM;
1943
1944         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1945                     0, NL80211_CMD_SET_INTERFACE, 0);
1946         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1947                     if_nametoindex(ifname));
1948         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_AP);
1949
1950         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1951         if (!ret)
1952                 return 0;
1953  nla_put_failure:
1954         wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
1955                    "mode.", ifname);
1956         return ret;
1957 }
1958
1959
1960 static int i802_init_sockets(struct i802_driver_data *drv, const u8 *bssid)
1961 {
1962         struct ifreq ifr;
1963         struct sockaddr_ll addr;
1964
1965         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1966         if (drv->ioctl_sock < 0) {
1967                 perror("socket[PF_INET,SOCK_DGRAM]");
1968                 return -1;
1969         }
1970
1971         /* start listening for EAPOL on the default AP interface */
1972         add_ifidx(drv, if_nametoindex(drv->iface));
1973
1974         if (hostapd_set_iface_flags(drv, drv->iface, 0))
1975                 return -1;
1976
1977         if (bssid) {
1978                 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
1979                 memcpy(ifr.ifr_hwaddr.sa_data, bssid, ETH_ALEN);
1980                 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
1981
1982                 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
1983                         perror("ioctl(SIOCSIFHWADDR)");
1984                         return -1;
1985                 }
1986         }
1987
1988         /*
1989          * initialise generic netlink and nl80211
1990          */
1991         drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1992         if (!drv->nl_cb) {
1993                 printf("Failed to allocate netlink callbacks.\n");
1994                 return -1;
1995         }
1996
1997         drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1998         if (!drv->nl_handle) {
1999                 printf("Failed to allocate netlink handle.\n");
2000                 return -1;
2001         }
2002
2003         if (genl_connect(drv->nl_handle)) {
2004                 printf("Failed to connect to generic netlink.\n");
2005                 return -1;
2006         }
2007
2008 #ifdef CONFIG_LIBNL20
2009         if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
2010                 printf("Failed to allocate generic netlink cache.\n");
2011                 return -1;
2012         }
2013 #else /* CONFIG_LIBNL20 */
2014         drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
2015         if (!drv->nl_cache) {
2016                 printf("Failed to allocate generic netlink cache.\n");
2017                 return -1;
2018         }
2019 #endif /* CONFIG_LIBNL20 */
2020
2021         drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
2022         if (!drv->nl80211) {
2023                 printf("nl80211 not found.\n");
2024                 return -1;
2025         }
2026
2027         /* Initialise a monitor interface */
2028         if (nl80211_create_monitor_interface(drv))
2029                 return -1;
2030
2031         if (nl80211_set_master_mode(drv, drv->iface))
2032                 goto fail1;
2033
2034         if (hostapd_set_iface_flags(drv, drv->iface, 1))
2035                 goto fail1;
2036
2037         memset(&addr, 0, sizeof(addr));
2038         addr.sll_family = AF_PACKET;
2039         addr.sll_ifindex = ifr.ifr_ifindex;
2040         wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
2041                    addr.sll_ifindex);
2042
2043         drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
2044         if (drv->eapol_sock < 0) {
2045                 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
2046                 goto fail1;
2047         }
2048
2049         if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
2050         {
2051                 printf("Could not register read socket for eapol\n");
2052                 return -1;
2053         }
2054
2055         memset(&ifr, 0, sizeof(ifr));
2056         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
2057         if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
2058                 perror("ioctl(SIOCGIFHWADDR)");
2059                 goto fail1;
2060         }
2061
2062         if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
2063                 printf("Invalid HW-addr family 0x%04x\n",
2064                        ifr.ifr_hwaddr.sa_family);
2065                 goto fail1;
2066         }
2067         memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
2068
2069         return 0;
2070
2071 fail1:
2072         nl80211_remove_iface(drv, drv->monitor_ifidx);
2073         return -1;
2074 }
2075
2076
2077 static int i802_get_inact_sec(void *priv, const u8 *addr)
2078 {
2079         struct hostap_sta_driver_data data;
2080         int ret;
2081
2082         data.inactive_msec = (unsigned long) -1;
2083         ret = i802_read_sta_data(priv, &data, addr);
2084         if (ret || data.inactive_msec == (unsigned long) -1)
2085                 return -1;
2086         return data.inactive_msec / 1000;
2087 }
2088
2089
2090 static int i802_sta_clear_stats(void *priv, const u8 *addr)
2091 {
2092 #if 0
2093         /* TODO */
2094 #endif
2095         return 0;
2096 }
2097
2098
2099 static void
2100 hostapd_wireless_event_wireless_custom(struct i802_driver_data *drv,
2101                                        char *custom)
2102 {
2103         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
2104
2105         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
2106                 char *pos;
2107                 u8 addr[ETH_ALEN];
2108                 pos = strstr(custom, "addr=");
2109                 if (pos == NULL) {
2110                         wpa_printf(MSG_DEBUG,
2111                                    "MLME-MICHAELMICFAILURE.indication "
2112                                    "without sender address ignored");
2113                         return;
2114                 }
2115                 pos += 5;
2116                 if (hwaddr_aton(pos, addr) == 0) {
2117                         hostapd_michael_mic_failure(drv->hapd, addr);
2118                 } else {
2119                         wpa_printf(MSG_DEBUG,
2120                                    "MLME-MICHAELMICFAILURE.indication "
2121                                    "with invalid MAC address");
2122                 }
2123         }
2124 }
2125
2126
2127 static void hostapd_wireless_event_wireless(struct i802_driver_data *drv,
2128                                             char *data, int len)
2129 {
2130         struct iw_event iwe_buf, *iwe = &iwe_buf;
2131         char *pos, *end, *custom, *buf;
2132
2133         pos = data;
2134         end = data + len;
2135
2136         while (pos + IW_EV_LCP_LEN <= end) {
2137                 /* Event data may be unaligned, so make a local, aligned copy
2138                  * before processing. */
2139                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
2140                 wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
2141                            iwe->cmd, iwe->len);
2142                 if (iwe->len <= IW_EV_LCP_LEN)
2143                         return;
2144
2145                 custom = pos + IW_EV_POINT_LEN;
2146                 if (drv->we_version > 18 &&
2147                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
2148                      iwe->cmd == IWEVCUSTOM)) {
2149                         /* WE-19 removed the pointer from struct iw_point */
2150                         char *dpos = (char *) &iwe_buf.u.data.length;
2151                         int dlen = dpos - (char *) &iwe_buf;
2152                         memcpy(dpos, pos + IW_EV_LCP_LEN,
2153                                sizeof(struct iw_event) - dlen);
2154                 } else {
2155                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
2156                         custom += IW_EV_POINT_OFF;
2157                 }
2158
2159                 switch (iwe->cmd) {
2160                 case IWEVCUSTOM:
2161                         if (custom + iwe->u.data.length > end)
2162                                 return;
2163                         buf = malloc(iwe->u.data.length + 1);
2164                         if (buf == NULL)
2165                                 return;
2166                         memcpy(buf, custom, iwe->u.data.length);
2167                         buf[iwe->u.data.length] = '\0';
2168                         hostapd_wireless_event_wireless_custom(drv, buf);
2169                         free(buf);
2170                         break;
2171                 }
2172
2173                 pos += iwe->len;
2174         }
2175 }
2176
2177
2178 static void hostapd_wireless_event_rtm_newlink(struct i802_driver_data *drv,
2179                                                struct nlmsghdr *h, int len)
2180 {
2181         struct ifinfomsg *ifi;
2182         int attrlen, nlmsg_len, rta_len;
2183         struct rtattr *attr;
2184
2185         if (len < (int) sizeof(*ifi))
2186                 return;
2187
2188         ifi = NLMSG_DATA(h);
2189
2190         /* TODO: use ifi->ifi_index to filter out wireless events from other
2191          * interfaces */
2192
2193         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
2194
2195         attrlen = h->nlmsg_len - nlmsg_len;
2196         if (attrlen < 0)
2197                 return;
2198
2199         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
2200
2201         rta_len = RTA_ALIGN(sizeof(struct rtattr));
2202         while (RTA_OK(attr, attrlen)) {
2203                 if (attr->rta_type == IFLA_WIRELESS) {
2204                         hostapd_wireless_event_wireless(
2205                                 drv, ((char *) attr) + rta_len,
2206                                 attr->rta_len - rta_len);
2207                 }
2208                 attr = RTA_NEXT(attr, attrlen);
2209         }
2210 }
2211
2212
2213 static void hostapd_wireless_event_receive(int sock, void *eloop_ctx,
2214                                            void *sock_ctx)
2215 {
2216         char buf[256];
2217         int left;
2218         struct sockaddr_nl from;
2219         socklen_t fromlen;
2220         struct nlmsghdr *h;
2221         struct i802_driver_data *drv = eloop_ctx;
2222
2223         fromlen = sizeof(from);
2224         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
2225                         (struct sockaddr *) &from, &fromlen);
2226         if (left < 0) {
2227                 if (errno != EINTR && errno != EAGAIN)
2228                         perror("recvfrom(netlink)");
2229                 return;
2230         }
2231
2232         h = (struct nlmsghdr *) buf;
2233         while (left >= (int) sizeof(*h)) {
2234                 int len, plen;
2235
2236                 len = h->nlmsg_len;
2237                 plen = len - sizeof(*h);
2238                 if (len > left || plen < 0) {
2239                         printf("Malformed netlink message: "
2240                                "len=%d left=%d plen=%d\n",
2241                                len, left, plen);
2242                         break;
2243                 }
2244
2245                 switch (h->nlmsg_type) {
2246                 case RTM_NEWLINK:
2247                         hostapd_wireless_event_rtm_newlink(drv, h, plen);
2248                         break;
2249                 }
2250
2251                 len = NLMSG_ALIGN(len);
2252                 left -= len;
2253                 h = (struct nlmsghdr *) ((char *) h + len);
2254         }
2255
2256         if (left > 0) {
2257                 printf("%d extra bytes in the end of netlink message\n", left);
2258         }
2259 }
2260
2261
2262 static int hostap_get_we_version(struct i802_driver_data *drv)
2263 {
2264         struct iw_range *range;
2265         struct iwreq iwr;
2266         int minlen;
2267         size_t buflen;
2268
2269         drv->we_version = 0;
2270
2271         /*
2272          * Use larger buffer than struct iw_range in order to allow the
2273          * structure to grow in the future.
2274          */
2275         buflen = sizeof(struct iw_range) + 500;
2276         range = os_zalloc(buflen);
2277         if (range == NULL)
2278                 return -1;
2279
2280         memset(&iwr, 0, sizeof(iwr));
2281         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
2282         iwr.u.data.pointer = (caddr_t) range;
2283         iwr.u.data.length = buflen;
2284
2285         minlen = ((char *) &range->enc_capa) - (char *) range +
2286                 sizeof(range->enc_capa);
2287
2288         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
2289                 perror("ioctl[SIOCGIWRANGE]");
2290                 free(range);
2291                 return -1;
2292         } else if (iwr.u.data.length >= minlen &&
2293                    range->we_version_compiled >= 18) {
2294                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
2295                            "WE(source)=%d enc_capa=0x%x",
2296                            range->we_version_compiled,
2297                            range->we_version_source,
2298                            range->enc_capa);
2299                 drv->we_version = range->we_version_compiled;
2300         }
2301
2302         free(range);
2303         return 0;
2304 }
2305
2306
2307 static int i802_wireless_event_init(void *priv)
2308 {
2309         struct i802_driver_data *drv = priv;
2310         int s;
2311         struct sockaddr_nl local;
2312
2313         hostap_get_we_version(drv);
2314
2315         drv->wext_sock = -1;
2316
2317         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
2318         if (s < 0) {
2319                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
2320                 return -1;
2321         }
2322
2323         memset(&local, 0, sizeof(local));
2324         local.nl_family = AF_NETLINK;
2325         local.nl_groups = RTMGRP_LINK;
2326         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
2327                 perror("bind(netlink)");
2328                 close(s);
2329                 return -1;
2330         }
2331
2332         eloop_register_read_sock(s, hostapd_wireless_event_receive, drv,
2333                                  NULL);
2334         drv->wext_sock = s;
2335
2336         return 0;
2337 }
2338
2339
2340 static void i802_wireless_event_deinit(void *priv)
2341 {
2342         struct i802_driver_data *drv = priv;
2343         if (drv->wext_sock < 0)
2344                 return;
2345         eloop_unregister_read_sock(drv->wext_sock);
2346         close(drv->wext_sock);
2347 }
2348
2349
2350 static int i802_sta_deauth(void *priv, const u8 *addr, int reason)
2351 {
2352         struct i802_driver_data *drv = priv;
2353         struct ieee80211_mgmt mgmt;
2354
2355         memset(&mgmt, 0, sizeof(mgmt));
2356         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
2357                                           WLAN_FC_STYPE_DEAUTH);
2358         memcpy(mgmt.da, addr, ETH_ALEN);
2359         memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
2360         memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
2361         mgmt.u.deauth.reason_code = host_to_le16(reason);
2362         return i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
2363                                       sizeof(mgmt.u.deauth), 0);
2364 }
2365
2366
2367 static int i802_sta_disassoc(void *priv, const u8 *addr, int reason)
2368 {
2369         struct i802_driver_data *drv = priv;
2370         struct ieee80211_mgmt mgmt;
2371
2372         memset(&mgmt, 0, sizeof(mgmt));
2373         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
2374                                           WLAN_FC_STYPE_DISASSOC);
2375         memcpy(mgmt.da, addr, ETH_ALEN);
2376         memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
2377         memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
2378         mgmt.u.disassoc.reason_code = host_to_le16(reason);
2379         return  i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
2380                                        sizeof(mgmt.u.disassoc), 0);
2381 }
2382
2383
2384 static void *i802_init_bssid(struct hostapd_data *hapd, const u8 *bssid)
2385 {
2386         struct i802_driver_data *drv;
2387
2388         drv = os_zalloc(sizeof(struct i802_driver_data));
2389         if (drv == NULL) {
2390                 printf("Could not allocate memory for i802 driver data\n");
2391                 return NULL;
2392         }
2393
2394         drv->hapd = hapd;
2395         memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
2396
2397         drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
2398         drv->if_indices = drv->default_if_indices;
2399         drv->bridge = if_nametoindex(hapd->conf->bridge);
2400
2401         if (i802_init_sockets(drv, bssid))
2402                 goto failed;
2403
2404         return drv;
2405
2406 failed:
2407         free(drv);
2408         return NULL;
2409 }
2410
2411
2412 static void *i802_init(struct hostapd_data *hapd)
2413 {
2414         return i802_init_bssid(hapd, NULL);
2415 }
2416
2417
2418 static void i802_deinit(void *priv)
2419 {
2420         struct i802_driver_data *drv = priv;
2421
2422         if (drv->last_freq_ht) {
2423                 /* Clear HT flags from the driver */
2424                 struct hostapd_freq_params freq;
2425                 os_memset(&freq, 0, sizeof(freq));
2426                 freq.freq = drv->last_freq;
2427                 i802_set_freq2(priv, &freq);
2428         }
2429
2430         i802_del_beacon(drv);
2431
2432         /* remove monitor interface */
2433         nl80211_remove_iface(drv, drv->monitor_ifidx);
2434
2435         (void) hostapd_set_iface_flags(drv, drv->iface, 0);
2436
2437         if (drv->monitor_sock >= 0) {
2438                 eloop_unregister_read_sock(drv->monitor_sock);
2439                 close(drv->monitor_sock);
2440         }
2441         if (drv->ioctl_sock >= 0)
2442                 close(drv->ioctl_sock);
2443         if (drv->eapol_sock >= 0) {
2444                 eloop_unregister_read_sock(drv->eapol_sock);
2445                 close(drv->eapol_sock);
2446         }
2447
2448         genl_family_put(drv->nl80211);
2449         nl_cache_free(drv->nl_cache);
2450         nl_handle_destroy(drv->nl_handle);
2451         nl_cb_put(drv->nl_cb);
2452
2453         if (drv->if_indices != drv->default_if_indices)
2454                 free(drv->if_indices);
2455
2456         free(drv);
2457 }
2458
2459
2460 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
2461         .name = "nl80211",
2462         .init = i802_init,
2463         .init_bssid = i802_init_bssid,
2464         .deinit = i802_deinit,
2465         .wireless_event_init = i802_wireless_event_init,
2466         .wireless_event_deinit = i802_wireless_event_deinit,
2467         .set_ieee8021x = i802_set_ieee8021x,
2468         .set_privacy = i802_set_privacy,
2469         .set_encryption = i802_set_encryption,
2470         .get_seqnum = i802_get_seqnum,
2471         .flush = i802_flush,
2472         .read_sta_data = i802_read_sta_data,
2473         .send_eapol = i802_send_eapol,
2474         .sta_set_flags = i802_sta_set_flags,
2475         .sta_deauth = i802_sta_deauth,
2476         .sta_disassoc = i802_sta_disassoc,
2477         .sta_remove = i802_sta_remove,
2478         .send_mgmt_frame = i802_send_mgmt_frame,
2479         .sta_add2 = i802_sta_add2,
2480         .get_inact_sec = i802_get_inact_sec,
2481         .sta_clear_stats = i802_sta_clear_stats,
2482         .set_freq2 = i802_set_freq2,
2483         .set_rts = i802_set_rts,
2484         .get_rts = i802_get_rts,
2485         .set_frag = i802_set_frag,
2486         .get_frag = i802_get_frag,
2487         .set_retry = i802_set_retry,
2488         .get_retry = i802_get_retry,
2489         .set_rate_sets = i802_set_rate_sets,
2490         .set_beacon = i802_set_beacon,
2491         .set_internal_bridge = i802_set_internal_bridge,
2492         .set_beacon_int = i802_set_beacon_int,
2493         .set_dtim_period = i802_set_dtim_period,
2494         .set_cts_protect = i802_set_cts_protect,
2495         .set_preamble = i802_set_preamble,
2496         .set_short_slot_time = i802_set_short_slot_time,
2497         .set_tx_queue_params = i802_set_tx_queue_params,
2498         .bss_add = i802_bss_add,
2499         .bss_remove = i802_bss_remove,
2500         .if_add = i802_if_add,
2501         .if_update = i802_if_update,
2502         .if_remove = i802_if_remove,
2503         .get_hw_feature_data = i802_get_hw_feature_data,
2504         .set_sta_vlan = i802_set_sta_vlan,
2505         .set_country = i802_set_country,
2506 };