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

   1 /*
   2  * hostapd / Kernel driver communication via nl80211
   3  * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2003-2004, Instant802 Networks, Inc.
   5  * Copyright (c) 2005-2006, Devicescape Software, Inc.
   6  * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * Alternatively, this software may be distributed under the terms of BSD
  13  * license.
  14  *
  15  * See README and COPYING for more details.
  16  */
  17
  18 #include "includes.h"
  19
  20 #include <sys/ioctl.h>
  21 #include <netlink/genl/genl.h>
  22 #include <netlink/genl/family.h>
  23 #include <netlink/genl/ctrl.h>
  24 #include <netlink/msg.h>
  25 #include <netlink/attr.h>
  26 #include "nl80211_copy.h"
  27 #include <net/if.h>
  28 #include <netpacket/packet.h>
  29 #include "wireless_copy.h"
  30 #include <net/if_arp.h>
  31
  32 #include "hostapd.h"
  33 #include "driver.h"
  34 #include "ieee802_1x.h"
  35 #include "eloop.h"
  36 #include "ieee802_11.h"
  37 #include "sta_info.h"
  38 #include "hw_features.h"
  39 #include "mlme.h"
  40 #include "radiotap.h"
  41 #include "radiotap_iter.h"
  42
  43 enum ieee80211_msg_type {
  44         ieee80211_msg_normal = 0,
  45         ieee80211_msg_tx_callback_ack = 1,
  46         ieee80211_msg_tx_callback_fail = 2,
  47 };
  48
  49 struct i802_driver_data {
  50         struct hostapd_data *hapd;
  51
  52         char iface[IFNAMSIZ + 1];
  53         int bridge;
  54         int ioctl_sock; /* socket for ioctl() use */
  55         int wext_sock; /* socket for wireless events */
  56         int eapol_sock; /* socket for EAPOL frames */
  57         int monitor_sock; /* socket for monitor */
  58         int monitor_ifidx;
  59
  60         int default_if_indices[16];
  61         int *if_indices;
  62         int num_if_indices;
  63
  64         int we_version;
  65         struct nl_handle *nl_handle;
  66         struct nl_cache *nl_cache;
  67         struct nl_cb *nl_cb;
  68         struct genl_family *nl80211;
  69         int dtim_period, beacon_int;
  70         unsigned int beacon_set:1;
  71         unsigned int ieee802_1x_active:1;
  72
  73         int last_freq;
  74         int last_freq_ht;
  75 };
  76
  77
  78 static void add_ifidx(struct i802_driver_data *drv, int ifidx)
  79 {
  80         int i;
  81         int *old;
  82
  83         for (i = 0; i < drv->num_if_indices; i++) {
  84                 if (drv->if_indices[i] == 0) {
  85                         drv->if_indices[i] = ifidx;
  86                         return;
  87                 }
  88         }
  89
  90         if (drv->if_indices != drv->default_if_indices)
  91                 old = drv->if_indices;
  92         else
  93                 old = NULL;
  94
  95         drv->if_indices = realloc(old,
  96                                   sizeof(int) * (drv->num_if_indices + 1));
  97         if (!drv->if_indices) {
  98                 if (!old)
  99                         drv->if_indices = drv->default_if_indices;
 100                 else
 101                         drv->if_indices = old;
 102                 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
 103                            "interfaces");
 104                 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
 105                 return;
 106         }
 107         drv->if_indices[drv->num_if_indices] = ifidx;
 108         drv->num_if_indices++;
 109 }
 110
 111
 112 static void del_ifidx(struct i802_driver_data *drv, int ifidx)
 113 {
 114         int i;
 115
 116         for (i = 0; i < drv->num_if_indices; i++) {
 117                 if (drv->if_indices[i] == ifidx) {
 118                         drv->if_indices[i] = 0;
 119                         break;
 120                 }
 121         }
 122 }
 123
 124
 125 static int have_ifidx(struct i802_driver_data *drv, int ifidx)
 126 {
 127         int i;
 128
 129         if (ifidx == drv->bridge)
 130                 return 1;
 131
 132         for (i = 0; i < drv->num_if_indices; i++)
 133                 if (drv->if_indices[i] == ifidx)
 134                         return 1;
 135
 136         return 0;
 137 }
 138
 139
 140 /* nl80211 code */
 141 static int ack_handler(struct nl_msg *msg, void *arg)
 142 {
 143         int *err = arg;
 144         *err = 0;
 145         return NL_STOP;
 146 }
 147
 148 static int finish_handler(struct nl_msg *msg, void *arg)
 149 {
 150         int *ret = arg;
 151         *ret = 0;
 152         return NL_SKIP;
 153 }
 154
 155 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
 156                          void *arg)
 157 {
 158         int *ret = arg;
 159         *ret = err->error;
 160         return NL_SKIP;
 161 }
 162
 163 static int send_and_recv_msgs(struct i802_driver_data *drv,
 164                               struct nl_msg *msg,
 165                               int (*valid_handler)(struct nl_msg *, void *),
 166                               void *valid_data)
 167 {
 168         struct nl_cb *cb;
 169         int err = -ENOMEM;
 170
 171         cb = nl_cb_clone(drv->nl_cb);
 172         if (!cb)
 173                 goto out;
 174
 175         err = nl_send_auto_complete(drv->nl_handle, msg);
 176         if (err < 0)
 177                 goto out;
 178
 179         err = 1;
 180
 181         nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
 182         nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
 183         nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
 184
 185         if (valid_handler)
 186                 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
 187                           valid_handler, valid_data);
 188
 189         while (err > 0)
 190                 nl_recvmsgs(drv->nl_handle, cb);
 191  out:
 192         nl_cb_put(cb);
 193         nlmsg_free(msg);
 194         return err;
 195 }
 196
 197 static int hostapd_set_iface_flags(struct i802_driver_data *drv,
 198                                    const char *ifname, int dev_up)
 199 {
 200         struct ifreq ifr;
 201
 202         if (drv->ioctl_sock < 0)
 203                 return -1;
 204
 205         memset(&ifr, 0, sizeof(ifr));
 206         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 207
 208         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
 209                 perror("ioctl[SIOCGIFFLAGS]");
 210                 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
 211                            drv->iface);
 212                 return -1;
 213         }
 214
 215         if (dev_up)
 216                 ifr.ifr_flags |= IFF_UP;
 217         else
 218                 ifr.ifr_flags &= ~IFF_UP;
 219
 220         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
 221                 perror("ioctl[SIOCSIFFLAGS]");
 222                 return -1;
 223         }
 224
 225         return 0;
 226 }
 227
 228
 229 static int nl_set_encr(int ifindex, struct i802_driver_data *drv,
 230                        const char *alg, const u8 *addr, int idx, const u8 *key,
 231                        size_t key_len, int txkey)
 232 {
 233         struct nl_msg *msg;
 234         int ret;
 235
 236         msg = nlmsg_alloc();
 237         if (!msg)
 238                 return -ENOMEM;
 239
 240         if (strcmp(alg, "none") == 0) {
 241                 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 242                             0, NL80211_CMD_DEL_KEY, 0);
 243         } else {
 244                 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 245                             0, NL80211_CMD_NEW_KEY, 0);
 246                 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
 247                 if (strcmp(alg, "WEP") == 0) {
 248                         if (key_len == 5)
 249                                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
 250                                             0x000FAC01);
 251                         else
 252                                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
 253                                             0x000FAC05);
 254                 } else if (strcmp(alg, "TKIP") == 0)
 255                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
 256                 else if (strcmp(alg, "CCMP") == 0)
 257                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
 258                 else if (strcmp(alg, "IGTK") == 0)
 259                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC06);
 260                 else {
 261                         wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
 262                                    "algorithm '%s'", __func__, alg);
 263                         nlmsg_free(msg);
 264                         return -1;
 265                 }
 266         }
 267
 268         if (addr)
 269                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 270         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 271         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
 272
 273         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 274         if (ret == -ENOENT)
 275                 ret = 0;
 276
 277         /*
 278          * If we failed or don't need to set the default TX key (below),
 279          * we're done here.
 280          */
 281         if (ret || !txkey || addr)
 282                 return ret;
 283
 284         msg = nlmsg_alloc();
 285         if (!msg)
 286                 return -ENOMEM;
 287
 288         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 289                     0, NL80211_CMD_SET_KEY, 0);
 290         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
 291         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
 292 #ifdef NL80211_MFP_PENDING
 293         if (strcmp(alg, "IGTK") == 0)
 294                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
 295         else
 296                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
 297 #else /* NL80211_MFP_PENDING */
 298         NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
 299 #endif /* NL80211_MFP_PENDING */
 300
 301         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 302         if (ret == -ENOENT)
 303                 ret = 0;
 304         return ret;
 305  nla_put_failure:
 306         return -ENOBUFS;
 307 }
 308
 309
 310 static int i802_set_encryption(const char *iface, void *priv, const char *alg,
 311                                const u8 *addr, int idx, const u8 *key,
 312                                size_t key_len, int txkey)
 313 {
 314         struct i802_driver_data *drv = priv;
 315         int ret;
 316
 317         ret = nl_set_encr(if_nametoindex(iface), drv, alg, addr, idx, key,
 318                           key_len, txkey);
 319         if (ret < 0)
 320                 return ret;
 321
 322         if (strcmp(alg, "IGTK") == 0) {
 323                 ret = nl_set_encr(drv->monitor_ifidx, drv, alg, addr, idx, key,
 324                                   key_len, txkey);
 325         }
 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_SEC_CHAN_OFFSET,
 505                                     NL80211_SEC_CHAN_BELOW);
 506                         break;
 507                 case 1:
 508                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET,
 509                                     NL80211_SEC_CHAN_ABOVE);
 510                         break;
 511                 default:
 512                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET,
 513                                     NL80211_SEC_CHAN_DISABLED);
 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->hapd->conf->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->hapd->conf->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->hapd->conf->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->hapd->conf->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->hapd->conf->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->hapd->conf->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 #ifdef NL80211_MFP_PENDING
 908         if (total_flags & WLAN_STA_MFP)
 909                 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
 910 #endif /* NL80211_MFP_PENDING */
 911
 912         if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
 913                 goto nla_put_failure;
 914
 915         nlmsg_free(flags);
 916
 917         return send_and_recv_msgs(drv, msg, NULL, NULL);
 918  nla_put_failure:
 919         nlmsg_free(flags);
 920         return -ENOBUFS;
 921 }
 922
 923
 924 static int i802_set_regulatory_domain(void *priv, unsigned int rd)
 925 {
 926         return -1;
 927 }
 928
 929
 930 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
 931                                     int cw_min, int cw_max, int burst_time)
 932 {
 933         struct i802_driver_data *drv = priv;
 934         struct nl_msg *msg;
 935         struct nlattr *txq, *params;
 936
 937         msg = nlmsg_alloc();
 938         if (!msg)
 939                 return -1;
 940
 941         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 942                     0, NL80211_CMD_SET_WIPHY, 0);
 943
 944         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
 945
 946         txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
 947         if (!txq)
 948                 goto nla_put_failure;
 949
 950         /* We are only sending parameters for a single TXQ at a time */
 951         params = nla_nest_start(msg, 1);
 952         if (!params)
 953                 goto nla_put_failure;
 954
 955         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
 956         /* Burst time is configured in units of 0.1 msec and TXOP parameter in
 957          * 32 usec, so need to convert the value here. */
 958         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
 959         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
 960         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
 961         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
 962
 963         nla_nest_end(msg, params);
 964
 965         nla_nest_end(msg, txq);
 966
 967         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 968                 return 0;
 969  nla_put_failure:
 970         return -1;
 971 }
 972
 973
 974 static void nl80211_remove_iface(struct i802_driver_data *drv, int ifidx)
 975 {
 976         struct nl_msg *msg;
 977
 978         /* stop listening for EAPOL on this interface */
 979         del_ifidx(drv, ifidx);
 980
 981         msg = nlmsg_alloc();
 982         if (!msg)
 983                 goto nla_put_failure;
 984
 985         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
 986                     0, NL80211_CMD_DEL_INTERFACE, 0);
 987         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
 988
 989         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
 990                 return;
 991  nla_put_failure:
 992         printf("Failed to remove interface.\n");
 993 }
 994
 995
 996 static int nl80211_create_iface(struct i802_driver_data *drv,
 997                                 const char *ifname,
 998                                 enum nl80211_iftype iftype,
 999                                 const u8 *addr)
1000 {
1001         struct nl_msg *msg, *flags = NULL;
1002         int ifidx;
1003         struct ifreq ifreq;
1004         struct iwreq iwr;
1005         int ret = -ENOBUFS;
1006
1007         msg = nlmsg_alloc();
1008         if (!msg)
1009                 return -1;
1010
1011         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1012                     0, NL80211_CMD_NEW_INTERFACE, 0);
1013         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1014                     if_nametoindex(drv->hapd->conf->iface));
1015         NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
1016         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
1017
1018         if (iftype == NL80211_IFTYPE_MONITOR) {
1019                 int err;
1020
1021                 flags = nlmsg_alloc();
1022                 if (!flags)
1023                         goto nla_put_failure;
1024
1025                 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
1026
1027                 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
1028
1029                 nlmsg_free(flags);
1030
1031                 if (err)
1032                         goto nla_put_failure;
1033         }
1034
1035         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1036         if (ret) {
1037  nla_put_failure:
1038                 printf("Failed to create interface %s.\n", ifname);
1039                 return ret;
1040         }
1041
1042         ifidx = if_nametoindex(ifname);
1043
1044         if (ifidx <= 0)
1045                 return -1;
1046
1047         /* start listening for EAPOL on this interface */
1048         add_ifidx(drv, ifidx);
1049
1050         if (addr) {
1051                 switch (iftype) {
1052                 case NL80211_IFTYPE_AP:
1053                         os_strlcpy(ifreq.ifr_name, ifname, IFNAMSIZ);
1054                         memcpy(ifreq.ifr_hwaddr.sa_data, addr, ETH_ALEN);
1055                         ifreq.ifr_hwaddr.sa_family = ARPHRD_ETHER;
1056
1057                         if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifreq)) {
1058                                 nl80211_remove_iface(drv, ifidx);
1059                                 return -1;
1060                         }
1061                         break;
1062                 case NL80211_IFTYPE_WDS:
1063                         memset(&iwr, 0, sizeof(iwr));
1064                         os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
1065                         iwr.u.addr.sa_family = ARPHRD_ETHER;
1066                         memcpy(iwr.u.addr.sa_data, addr, ETH_ALEN);
1067                         if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr))
1068                                 return -1;
1069                         break;
1070                 default:
1071                         /* nothing */
1072                         break;
1073                 }
1074         }
1075
1076         return ifidx;
1077 }
1078
1079
1080 static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
1081 {
1082         int ifidx;
1083
1084         /*
1085          * The kernel supports that when the low-level driver does,
1086          * but we currently don't because we need per-BSS data that
1087          * currently we can't handle easily.
1088          */
1089         return -1;
1090
1091         ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
1092         if (ifidx < 0)
1093                 return -1;
1094         if (hostapd_set_iface_flags(priv, ifname, 1)) {
1095                 nl80211_remove_iface(priv, ifidx);
1096                 return -1;
1097         }
1098         return 0;
1099 }
1100
1101
1102 static int i802_bss_remove(void *priv, const char *ifname)
1103 {
1104         nl80211_remove_iface(priv, if_nametoindex(ifname));
1105         return 0;
1106 }
1107
1108
1109 static int i802_set_beacon(const char *iface, void *priv,
1110                            u8 *head, size_t head_len,
1111                            u8 *tail, size_t tail_len)
1112 {
1113         struct i802_driver_data *drv = priv;
1114         struct nl_msg *msg;
1115         u8 cmd = NL80211_CMD_NEW_BEACON;
1116         int ret;
1117
1118         msg = nlmsg_alloc();
1119         if (!msg)
1120                 return -ENOMEM;
1121
1122         if (drv->beacon_set)
1123                 cmd = NL80211_CMD_SET_BEACON;
1124
1125         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1126                     0, cmd, 0);
1127         NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
1128         NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
1129         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
1130         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
1131
1132         if (!drv->dtim_period)
1133                 drv->dtim_period = 2;
1134         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
1135
1136         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1137         if (!ret)
1138                 drv->beacon_set = 1;
1139         return ret;
1140  nla_put_failure:
1141         return -ENOBUFS;
1142 }
1143
1144
1145 static int i802_del_beacon(struct i802_driver_data *drv)
1146 {
1147         struct nl_msg *msg;
1148
1149         msg = nlmsg_alloc();
1150         if (!msg)
1151                 return -ENOMEM;
1152
1153         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1154                     0, NL80211_CMD_DEL_BEACON, 0);
1155         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1156
1157         return send_and_recv_msgs(drv, msg, NULL, NULL);
1158  nla_put_failure:
1159         return -ENOBUFS;
1160 }
1161
1162
1163 static int i802_set_ieee8021x(const char *ifname, void *priv, int enabled)
1164 {
1165         struct i802_driver_data *drv = priv;
1166
1167         /*
1168          * FIXME: This needs to be per interface (BSS)
1169          */
1170         drv->ieee802_1x_active = enabled;
1171         return 0;
1172 }
1173
1174
1175 static int i802_set_privacy(const char *ifname, void *priv, int enabled)
1176 {
1177         struct i802_driver_data *drv = priv;
1178         struct iwreq iwr;
1179
1180         memset(&iwr, 0, sizeof(iwr));
1181
1182         os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
1183         iwr.u.param.flags = IW_AUTH_PRIVACY_INVOKED;
1184         iwr.u.param.value = enabled;
1185
1186         ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr);
1187
1188         /* ignore errors, the kernel/driver might not care */
1189         return 0;
1190 }
1191
1192
1193 static int i802_set_internal_bridge(void *priv, int value)
1194 {
1195         return -1;
1196 }
1197
1198
1199 static int i802_set_beacon_int(void *priv, int value)
1200 {
1201         struct i802_driver_data *drv = priv;
1202         struct nl_msg *msg;
1203
1204         drv->beacon_int = value;
1205
1206         if (!drv->beacon_set)
1207                 return 0;
1208
1209         msg = nlmsg_alloc();
1210         if (!msg)
1211                 return -ENOMEM;
1212
1213         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1214                     0, NL80211_CMD_SET_BEACON, 0);
1215         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1216
1217         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
1218
1219         return send_and_recv_msgs(drv, msg, NULL, NULL);
1220  nla_put_failure:
1221         return -ENOBUFS;
1222 }
1223
1224
1225 static int i802_set_dtim_period(const char *iface, void *priv, int value)
1226 {
1227         struct i802_driver_data *drv = priv;
1228         struct nl_msg *msg;
1229
1230         msg = nlmsg_alloc();
1231         if (!msg)
1232                 return -ENOMEM;
1233
1234         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1235                     0, NL80211_CMD_SET_BEACON, 0);
1236         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
1237
1238         drv->dtim_period = value;
1239         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
1240
1241         return send_and_recv_msgs(drv, msg, NULL, NULL);
1242  nla_put_failure:
1243         return -ENOBUFS;
1244 }
1245
1246
1247 static int i802_set_bss(void *priv, int cts, int preamble, int slot)
1248 {
1249         struct i802_driver_data *drv = priv;
1250         struct nl_msg *msg;
1251
1252         msg = nlmsg_alloc();
1253         if (!msg)
1254                 return -ENOMEM;
1255
1256         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1257                     NL80211_CMD_SET_BSS, 0);
1258
1259         if (cts >= 0)
1260                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
1261         if (preamble >= 0)
1262                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
1263         if (slot >= 0)
1264                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
1265
1266         /* TODO: multi-BSS support */
1267         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1268
1269         return send_and_recv_msgs(drv, msg, NULL, NULL);
1270  nla_put_failure:
1271         return -ENOBUFS;
1272 }
1273
1274
1275 static int i802_set_cts_protect(void *priv, int value)
1276 {
1277         return i802_set_bss(priv, value, -1, -1);
1278 }
1279
1280
1281 static int i802_set_preamble(void *priv, int value)
1282 {
1283         return i802_set_bss(priv, -1, value, -1);
1284 }
1285
1286
1287 static int i802_set_short_slot_time(void *priv, int value)
1288 {
1289         return i802_set_bss(priv, -1, -1, value);
1290 }
1291
1292
1293 static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
1294 {
1295         switch (type) {
1296         case HOSTAPD_IF_VLAN:
1297                 return NL80211_IFTYPE_AP_VLAN;
1298         case HOSTAPD_IF_WDS:
1299                 return NL80211_IFTYPE_WDS;
1300         }
1301         return -1;
1302 }
1303
1304
1305 static int i802_if_add(const char *iface, void *priv,
1306                        enum hostapd_driver_if_type type, char *ifname,
1307                        const u8 *addr)
1308 {
1309         if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
1310                 return -1;
1311         return 0;
1312 }
1313
1314
1315 static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
1316                           char *ifname, const u8 *addr)
1317 {
1318         /* unused at the moment */
1319         return -1;
1320 }
1321
1322
1323 static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
1324                           const char *ifname, const u8 *addr)
1325 {
1326         nl80211_remove_iface(priv, if_nametoindex(ifname));
1327         return 0;
1328 }
1329
1330
1331 struct phy_info_arg {
1332         u16 *num_modes;
1333         struct hostapd_hw_modes *modes;
1334 };
1335
1336 static int phy_info_handler(struct nl_msg *msg, void *arg)
1337 {
1338         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1339         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1340         struct phy_info_arg *phy_info = arg;
1341
1342         struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1343
1344         struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1345         static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1346                 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1347                 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1348                 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
1349                 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
1350                 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1351                 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1352         };
1353
1354         struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1355         static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1356                 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1357                 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
1358         };
1359
1360         struct nlattr *nl_band;
1361         struct nlattr *nl_freq;
1362         struct nlattr *nl_rate;
1363         int rem_band, rem_freq, rem_rate;
1364         struct hostapd_hw_modes *mode;
1365         int idx, mode_is_set;
1366
1367         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1368                   genlmsg_attrlen(gnlh, 0), NULL);
1369
1370         if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1371                 return NL_SKIP;
1372
1373         nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
1374                 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
1375                 if (!mode)
1376                         return NL_SKIP;
1377                 phy_info->modes = mode;
1378
1379                 mode_is_set = 0;
1380
1381                 mode = &phy_info->modes[*(phy_info->num_modes)];
1382                 memset(mode, 0, sizeof(*mode));
1383                 *(phy_info->num_modes) += 1;
1384
1385                 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1386                           nla_len(nl_band), NULL);
1387
1388                 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1389                         nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1390                                   nla_len(nl_freq), freq_policy);
1391                         if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1392                                 continue;
1393                         mode->num_channels++;
1394                 }
1395
1396                 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
1397                 if (!mode->channels)
1398                         return NL_SKIP;
1399
1400                 idx = 0;
1401
1402                 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1403                         nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1404                                   nla_len(nl_freq), freq_policy);
1405                         if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1406                                 continue;
1407
1408                         mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1409                         mode->channels[idx].flag = 0;
1410
1411                         if (!mode_is_set) {
1412                                 /* crude heuristic */
1413                                 if (mode->channels[idx].freq < 4000)
1414                                         mode->mode = HOSTAPD_MODE_IEEE80211B;
1415                                 else
1416                                         mode->mode = HOSTAPD_MODE_IEEE80211A;
1417                                 mode_is_set = 1;
1418                         }
1419
1420                         /* crude heuristic */
1421                         if (mode->channels[idx].freq < 4000)
1422                                 if (mode->channels[idx].freq == 2848)
1423                                         mode->channels[idx].chan = 14;
1424                                 else
1425                                         mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
1426                         else
1427                                 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
1428
1429                         if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1430                                 mode->channels[idx].flag |=
1431                                         HOSTAPD_CHAN_DISABLED;
1432                         if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
1433                                 mode->channels[idx].flag |=
1434                                         HOSTAPD_CHAN_PASSIVE_SCAN;
1435                         if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
1436                                 mode->channels[idx].flag |=
1437                                         HOSTAPD_CHAN_NO_IBSS;
1438                         if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1439                                 mode->channels[idx].flag |=
1440                                         HOSTAPD_CHAN_RADAR;
1441
1442                         if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
1443                             !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1444                                 mode->channels[idx].max_tx_power =
1445                                         nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
1446
1447                         idx++;
1448                 }
1449
1450                 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1451                         nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1452                                   nla_len(nl_rate), rate_policy);
1453                         if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1454                                 continue;
1455                         mode->num_rates++;
1456                 }
1457
1458                 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
1459                 if (!mode->rates)
1460                         return NL_SKIP;
1461
1462                 idx = 0;
1463
1464                 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1465                         nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1466                                   nla_len(nl_rate), rate_policy);
1467                         if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1468                                 continue;
1469                         mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
1470
1471                         /* crude heuristic */
1472                         if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
1473                             mode->rates[idx].rate > 200)
1474                                 mode->mode = HOSTAPD_MODE_IEEE80211G;
1475
1476                         if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
1477                                 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
1478
1479                         idx++;
1480                 }
1481         }
1482
1483         return NL_SKIP;
1484 }
1485
1486 static struct hostapd_hw_modes *i802_add_11b(struct hostapd_hw_modes *modes,
1487                                              u16 *num_modes)
1488 {
1489         u16 m;
1490         struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1491         int i, mode11g_idx = -1;
1492
1493         /* If only 802.11g mode is included, use it to construct matching
1494          * 802.11b mode data. */
1495
1496         for (m = 0; m < *num_modes; m++) {
1497                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1498                         return modes; /* 802.11b already included */
1499                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1500                         mode11g_idx = m;
1501         }
1502
1503         if (mode11g_idx < 0)
1504                 return modes; /* 2.4 GHz band not supported at all */
1505
1506         nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
1507         if (nmodes == NULL)
1508                 return modes; /* Could not add 802.11b mode */
1509
1510         mode = &nmodes[*num_modes];
1511         os_memset(mode, 0, sizeof(*mode));
1512         (*num_modes)++;
1513         modes = nmodes;
1514
1515         mode->mode = HOSTAPD_MODE_IEEE80211B;
1516
1517         mode11g = &modes[mode11g_idx];
1518         mode->num_channels = mode11g->num_channels;
1519         mode->channels = os_malloc(mode11g->num_channels *
1520                                    sizeof(struct hostapd_channel_data));
1521         if (mode->channels == NULL) {
1522                 (*num_modes)--;
1523                 return modes; /* Could not add 802.11b mode */
1524         }
1525         os_memcpy(mode->channels, mode11g->channels,
1526                   mode11g->num_channels * sizeof(struct hostapd_channel_data));
1527
1528         mode->num_rates = 0;
1529         mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
1530         if (mode->rates == NULL) {
1531                 os_free(mode->channels);
1532                 (*num_modes)--;
1533                 return modes; /* Could not add 802.11b mode */
1534         }
1535
1536         for (i = 0; i < mode11g->num_rates; i++) {
1537                 if (mode11g->rates[i].rate > 110 ||
1538                     mode11g->rates[i].flags &
1539                     (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
1540                         continue;
1541                 mode->rates[mode->num_rates] = mode11g->rates[i];
1542                 mode->num_rates++;
1543                 if (mode->num_rates == 4)
1544                         break;
1545         }
1546
1547         if (mode->num_rates == 0) {
1548                 os_free(mode->channels);
1549                 os_free(mode->rates);
1550                 (*num_modes)--;
1551                 return modes; /* No 802.11b rates */
1552         }
1553
1554         wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1555                    "information");
1556
1557         return modes;
1558 }
1559
1560 static struct hostapd_hw_modes *i802_get_hw_feature_data(void *priv,
1561                                                          u16 *num_modes,
1562                                                          u16 *flags)
1563 {
1564         struct i802_driver_data *drv = priv;
1565         struct nl_msg *msg;
1566         struct phy_info_arg result = {
1567                 .num_modes = num_modes,
1568                 .modes = NULL,
1569         };
1570
1571         *num_modes = 0;
1572         *flags = 0;
1573
1574         msg = nlmsg_alloc();
1575         if (!msg)
1576                 return NULL;
1577
1578         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1579                     0, NL80211_CMD_GET_WIPHY, 0);
1580
1581         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
1582
1583         if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
1584                 return i802_add_11b(result.modes, num_modes);
1585  nla_put_failure:
1586         return NULL;
1587 }
1588
1589
1590 static int i802_set_sta_vlan(void *priv, const u8 *addr,
1591                              const char *ifname, int vlan_id)
1592 {
1593         struct i802_driver_data *drv = priv;
1594         struct nl_msg *msg;
1595
1596         msg = nlmsg_alloc();
1597         if (!msg)
1598                 return -ENOMEM;
1599
1600         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1601                     0, NL80211_CMD_SET_STATION, 0);
1602
1603         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1604                     if_nametoindex(drv->iface));
1605         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1606         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1607                     if_nametoindex(ifname));
1608
1609         return send_and_recv_msgs(drv, msg, NULL, NULL);
1610  nla_put_failure:
1611         return -ENOBUFS;
1612 }
1613
1614
1615 static int i802_set_country(void *priv, const char *country)
1616 {
1617         struct i802_driver_data *drv = priv;
1618         struct nl_msg *msg;
1619         char alpha2[3];
1620
1621         msg = nlmsg_alloc();
1622         if (!msg)
1623                 return -ENOMEM;
1624
1625         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1626                     0, NL80211_CMD_REQ_SET_REG, 0);
1627
1628         alpha2[0] = country[0];
1629         alpha2[1] = country[1];
1630         alpha2[2] = '\0';
1631         NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1632
1633         return send_and_recv_msgs(drv, msg, NULL, NULL);
1634  nla_put_failure:
1635         return -ENOBUFS;
1636 }
1637
1638
1639 static void handle_unknown_sta(struct hostapd_data *hapd, u8 *ta)
1640 {
1641         struct sta_info *sta;
1642
1643         sta = ap_get_sta(hapd, ta);
1644         if (!sta || !(sta->flags & WLAN_STA_ASSOC)) {
1645                 printf("Data/PS-poll frame from not associated STA "
1646                        MACSTR "\n", MAC2STR(ta));
1647                 if (sta && (sta->flags & WLAN_STA_AUTH))
1648                         hostapd_sta_disassoc(
1649                                 hapd, ta,
1650                                 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1651                 else
1652                         hostapd_sta_deauth(
1653                                 hapd, ta,
1654                                 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1655         }
1656 }
1657
1658
1659 static void handle_tx_callback(struct hostapd_data *hapd, u8 *buf, size_t len,
1660                                int ok)
1661 {
1662         struct ieee80211_hdr *hdr;
1663         u16 fc, type, stype;
1664         struct sta_info *sta;
1665
1666         hdr = (struct ieee80211_hdr *) buf;
1667         fc = le_to_host16(hdr->frame_control);
1668
1669         type = WLAN_FC_GET_TYPE(fc);
1670         stype = WLAN_FC_GET_STYPE(fc);
1671
1672         switch (type) {
1673         case WLAN_FC_TYPE_MGMT:
1674                 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
1675                            ok ? "ACK" : "fail");
1676                 ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
1677                 break;
1678         case WLAN_FC_TYPE_CTRL:
1679                 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
1680                            ok ? "ACK" : "fail");
1681                 break;
1682         case WLAN_FC_TYPE_DATA:
1683                 wpa_printf(MSG_DEBUG, "DATA (TX callback) %s",
1684                            ok ? "ACK" : "fail");
1685                 sta = ap_get_sta(hapd, hdr->addr1);
1686                 if (sta && sta->flags & WLAN_STA_PENDING_POLL) {
1687                         wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending "
1688                                    "activity poll", MAC2STR(sta->addr),
1689                                    ok ? "ACKed" : "did not ACK");
1690                         if (ok)
1691                                 sta->flags &= ~WLAN_STA_PENDING_POLL;
1692                 }
1693                 if (sta)
1694                         ieee802_1x_tx_status(hapd, sta, buf, len, ok);
1695                 break;
1696         default:
1697                 printf("unknown TX callback frame type %d\n", type);
1698                 break;
1699         }
1700 }
1701
1702
1703 static void handle_frame(struct hostapd_iface *iface, u8 *buf, size_t len,
1704                          struct hostapd_frame_info *hfi,
1705                          enum ieee80211_msg_type msg_type)
1706 {
1707         struct ieee80211_hdr *hdr;
1708         u16 fc, type, stype;
1709         size_t data_len = len;
1710         struct hostapd_data *hapd = NULL;
1711         int broadcast_bssid = 0;
1712         size_t i;
1713         u8 *bssid;
1714
1715         /*
1716          * PS-Poll frames are 16 bytes. All other frames are
1717          * 24 bytes or longer.
1718          */
1719         if (len < 16)
1720                 return;
1721
1722         hdr = (struct ieee80211_hdr *) buf;
1723         fc = le_to_host16(hdr->frame_control);
1724
1725         type = WLAN_FC_GET_TYPE(fc);
1726         stype = WLAN_FC_GET_STYPE(fc);
1727
1728         switch (type) {
1729         case WLAN_FC_TYPE_DATA:
1730                 if (len < 24)
1731                         return;
1732                 switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
1733                 case WLAN_FC_TODS:
1734                         bssid = hdr->addr1;
1735                         break;
1736                 default:
1737                         /* discard */
1738                         return;
1739                 }
1740                 break;
1741         case WLAN_FC_TYPE_CTRL:
1742                 /* discard non-ps-poll frames */
1743                 if (stype != WLAN_FC_STYPE_PSPOLL)
1744                         return;
1745                 bssid = hdr->addr1;
1746                 break;
1747         case WLAN_FC_TYPE_MGMT:
1748                 bssid = hdr->addr3;
1749                 break;
1750         default:
1751                 /* discard */
1752                 return;
1753         }
1754
1755         /* find interface frame belongs to */
1756         for (i = 0; i < iface->num_bss; i++) {
1757                 if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) {
1758                         hapd = iface->bss[i];
1759                         break;
1760                 }
1761         }
1762
1763         if (hapd == NULL) {
1764                 hapd = iface->bss[0];
1765
1766                 if (bssid[0] != 0xff || bssid[1] != 0xff ||
1767                     bssid[2] != 0xff || bssid[3] != 0xff ||
1768                     bssid[4] != 0xff || bssid[5] != 0xff) {
1769                         /*
1770                          * Unknown BSSID - drop frame if this is not from
1771                          * passive scanning or a beacon (at least ProbeReq
1772                          * frames to other APs may be allowed through RX
1773                          * filtering in the wlan hw/driver)
1774                          */
1775                         if ((type != WLAN_FC_TYPE_MGMT ||
1776                              stype != WLAN_FC_STYPE_BEACON))
1777                                 return;
1778                 } else
1779                         broadcast_bssid = 1;
1780         }
1781
1782         switch (msg_type) {
1783         case ieee80211_msg_normal:
1784                 /* continue processing */
1785                 break;
1786         case ieee80211_msg_tx_callback_ack:
1787                 handle_tx_callback(hapd, buf, data_len, 1);
1788                 return;
1789         case ieee80211_msg_tx_callback_fail:
1790                 handle_tx_callback(hapd, buf, data_len, 0);
1791                 return;
1792         }
1793
1794         switch (type) {
1795         case WLAN_FC_TYPE_MGMT:
1796                 if (stype != WLAN_FC_STYPE_BEACON &&
1797                     stype != WLAN_FC_STYPE_PROBE_REQ)
1798                         wpa_printf(MSG_MSGDUMP, "MGMT");
1799                 if (broadcast_bssid) {
1800                         for (i = 0; i < iface->num_bss; i++)
1801                                 ieee802_11_mgmt(iface->bss[i], buf, data_len,
1802                                                 stype, hfi);
1803                 } else
1804                         ieee802_11_mgmt(hapd, buf, data_len, stype, hfi);
1805                 break;
1806         case WLAN_FC_TYPE_CTRL:
1807                 /* can only get here with PS-Poll frames */
1808                 wpa_printf(MSG_DEBUG, "CTRL");
1809                 handle_unknown_sta(hapd, hdr->addr2);
1810                 break;
1811         case WLAN_FC_TYPE_DATA:
1812                 handle_unknown_sta(hapd, hdr->addr2);
1813                 break;
1814         }
1815 }
1816
1817
1818 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
1819 {
1820         struct i802_driver_data *drv = eloop_ctx;
1821         struct hostapd_data *hapd = drv->hapd;
1822         struct sockaddr_ll lladdr;
1823         unsigned char buf[3000];
1824         int len;
1825         socklen_t fromlen = sizeof(lladdr);
1826
1827         len = recvfrom(sock, buf, sizeof(buf), 0,
1828                        (struct sockaddr *)&lladdr, &fromlen);
1829         if (len < 0) {
1830                 perror("recv");
1831                 return;
1832         }
1833
1834         if (have_ifidx(drv, lladdr.sll_ifindex))
1835                 ieee802_1x_receive(hapd, lladdr.sll_addr, buf, len);
1836 }
1837
1838
1839 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
1840 {
1841         struct i802_driver_data *drv = eloop_ctx;
1842         int len;
1843         unsigned char buf[3000];
1844         struct hostapd_data *hapd = drv->hapd;
1845         struct ieee80211_radiotap_iterator iter;
1846         int ret;
1847         struct hostapd_frame_info hfi;
1848         int injected = 0, failed = 0, msg_type, rxflags = 0;
1849
1850         len = recv(sock, buf, sizeof(buf), 0);
1851         if (len < 0) {
1852                 perror("recv");
1853                 return;
1854         }
1855
1856         if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
1857                 printf("received invalid radiotap frame\n");
1858                 return;
1859         }
1860
1861         memset(&hfi, 0, sizeof(hfi));
1862
1863         while (1) {
1864                 ret = ieee80211_radiotap_iterator_next(&iter);
1865                 if (ret == -ENOENT)
1866                         break;
1867                 if (ret) {
1868                         printf("received invalid radiotap frame (%d)\n", ret);
1869                         return;
1870                 }
1871                 switch (iter.this_arg_index) {
1872                 case IEEE80211_RADIOTAP_FLAGS:
1873                         if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
1874                                 len -= 4;
1875                         break;
1876                 case IEEE80211_RADIOTAP_RX_FLAGS:
1877                         rxflags = 1;
1878                         break;
1879                 case IEEE80211_RADIOTAP_TX_FLAGS:
1880                         injected = 1;
1881                         failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
1882                                         IEEE80211_RADIOTAP_F_TX_FAIL;
1883                         break;
1884                 case IEEE80211_RADIOTAP_DATA_RETRIES:
1885                         break;
1886                 case IEEE80211_RADIOTAP_CHANNEL:
1887                         /* TODO convert from freq/flags to channel number
1888                         hfi.channel = XXX;
1889                         hfi.phytype = XXX;
1890                          */
1891                         break;
1892                 case IEEE80211_RADIOTAP_RATE:
1893                         hfi.datarate = *iter.this_arg * 5;
1894                         break;
1895                 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
1896                         hfi.ssi_signal = *iter.this_arg;
1897                         break;
1898                 }
1899         }
1900
1901         if (rxflags && injected)
1902                 return;
1903
1904         if (!injected)
1905                 msg_type = ieee80211_msg_normal;
1906         else if (failed)
1907                 msg_type = ieee80211_msg_tx_callback_fail;
1908         else
1909                 msg_type = ieee80211_msg_tx_callback_ack;
1910
1911         handle_frame(hapd->iface, buf + iter.max_length,
1912                      len - iter.max_length, &hfi, msg_type);
1913 }
1914
1915
1916 static int nl80211_create_monitor_interface(struct i802_driver_data *drv)
1917 {
1918         char buf[IFNAMSIZ];
1919         struct sockaddr_ll ll;
1920         int optval;
1921         socklen_t optlen;
1922
1923         snprintf(buf, IFNAMSIZ, "mon.%s", drv->iface);
1924         buf[IFNAMSIZ - 1] = '\0';
1925
1926         drv->monitor_ifidx =
1927                 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
1928
1929         if (drv->monitor_ifidx < 0)
1930                 return -1;
1931
1932         if (hostapd_set_iface_flags(drv, buf, 1))
1933                 goto error;
1934
1935         memset(&ll, 0, sizeof(ll));
1936         ll.sll_family = AF_PACKET;
1937         ll.sll_ifindex = drv->monitor_ifidx;
1938         drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
1939         if (drv->monitor_sock < 0) {
1940                 perror("socket[PF_PACKET,SOCK_RAW]");
1941                 goto error;
1942         }
1943
1944         if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
1945                  sizeof(ll)) < 0) {
1946                 perror("monitor socket bind");
1947                 goto error;
1948         }
1949
1950         optlen = sizeof(optval);
1951         optval = 20;
1952         if (setsockopt
1953             (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
1954                 perror("Failed to set socket priority");
1955                 goto error;
1956         }
1957
1958         if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
1959                                      drv, NULL)) {
1960                 printf("Could not register monitor read socket\n");
1961                 goto error;
1962         }
1963
1964         return 0;
1965  error:
1966         nl80211_remove_iface(drv, drv->monitor_ifidx);
1967         return -1;
1968 }
1969
1970
1971 static int nl80211_set_master_mode(struct i802_driver_data *drv,
1972                                    const char *ifname)
1973 {
1974         struct nl_msg *msg;
1975         int ret = -ENOBUFS;
1976
1977         msg = nlmsg_alloc();
1978         if (!msg)
1979                 return -ENOMEM;
1980
1981         genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1982                     0, NL80211_CMD_SET_INTERFACE, 0);
1983         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
1984                     if_nametoindex(ifname));
1985         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_AP);
1986
1987         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1988         if (!ret)
1989                 return 0;
1990  nla_put_failure:
1991         wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
1992                    "mode.", ifname);
1993         return ret;
1994 }
1995
1996
1997 static int i802_init_sockets(struct i802_driver_data *drv, const u8 *bssid)
1998 {
1999         struct ifreq ifr;
2000         struct sockaddr_ll addr;
2001
2002         drv->ioctl_sock = -1;
2003
2004         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
2005         if (drv->ioctl_sock < 0) {
2006                 perror("socket[PF_INET,SOCK_DGRAM]");
2007                 return -1;
2008         }
2009
2010         /* start listening for EAPOL on the default AP interface */
2011         add_ifidx(drv, if_nametoindex(drv->iface));
2012
2013         if (hostapd_set_iface_flags(drv, drv->iface, 0))
2014                 return -1;
2015
2016         if (bssid) {
2017                 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
2018                 memcpy(ifr.ifr_hwaddr.sa_data, bssid, ETH_ALEN);
2019                 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
2020
2021                 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
2022                         perror("ioctl(SIOCSIFHWADDR)");
2023                         return -1;
2024                 }
2025         }
2026
2027         /*
2028          * initialise generic netlink and nl80211
2029          */
2030         drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2031         if (!drv->nl_cb) {
2032                 printf("Failed to allocate netlink callbacks.\n");
2033                 return -1;
2034         }
2035
2036         drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
2037         if (!drv->nl_handle) {
2038                 printf("Failed to allocate netlink handle.\n");
2039                 return -1;
2040         }
2041
2042         if (genl_connect(drv->nl_handle)) {
2043                 printf("Failed to connect to generic netlink.\n");
2044                 return -1;
2045         }
2046
2047         drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
2048         if (!drv->nl_cache) {
2049                 printf("Failed to allocate generic netlink cache.\n");
2050                 return -1;
2051         }
2052
2053         drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
2054         if (!drv->nl80211) {
2055                 printf("nl80211 not found.\n");
2056                 return -1;
2057         }
2058
2059         /* Initialise a monitor interface */
2060         if (nl80211_create_monitor_interface(drv))
2061                 return -1;
2062
2063         if (nl80211_set_master_mode(drv, drv->iface))
2064                 goto fail1;
2065
2066         if (hostapd_set_iface_flags(drv, drv->iface, 1))
2067                 goto fail1;
2068
2069         memset(&addr, 0, sizeof(addr));
2070         addr.sll_family = AF_PACKET;
2071         addr.sll_ifindex = ifr.ifr_ifindex;
2072         wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
2073                    addr.sll_ifindex);
2074
2075         drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
2076         if (drv->eapol_sock < 0) {
2077                 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
2078                 goto fail1;
2079         }
2080
2081         if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
2082         {
2083                 printf("Could not register read socket for eapol\n");
2084                 return -1;
2085         }
2086
2087         memset(&ifr, 0, sizeof(ifr));
2088         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
2089         if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
2090                 perror("ioctl(SIOCGIFHWADDR)");
2091                 goto fail1;
2092         }
2093
2094         if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
2095                 printf("Invalid HW-addr family 0x%04x\n",
2096                        ifr.ifr_hwaddr.sa_family);
2097                 goto fail1;
2098         }
2099         memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
2100
2101         return 0;
2102
2103 fail1:
2104         nl80211_remove_iface(drv, drv->monitor_ifidx);
2105         return -1;
2106 }
2107
2108
2109 static int i802_get_inact_sec(void *priv, const u8 *addr)
2110 {
2111         struct hostap_sta_driver_data data;
2112         int ret;
2113
2114         data.inactive_msec = (unsigned long) -1;
2115         ret = i802_read_sta_data(priv, &data, addr);
2116         if (ret || data.inactive_msec == (unsigned long) -1)
2117                 return -1;
2118         return data.inactive_msec / 1000;
2119 }
2120
2121
2122 static int i802_sta_clear_stats(void *priv, const u8 *addr)
2123 {
2124 #if 0
2125         /* TODO */
2126 #endif
2127         return 0;
2128 }
2129
2130
2131 static void
2132 hostapd_wireless_event_wireless_custom(struct i802_driver_data *drv,
2133                                        char *custom)
2134 {
2135         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
2136
2137         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
2138                 char *pos;
2139                 u8 addr[ETH_ALEN];
2140                 pos = strstr(custom, "addr=");
2141                 if (pos == NULL) {
2142                         wpa_printf(MSG_DEBUG,
2143                                    "MLME-MICHAELMICFAILURE.indication "
2144                                    "without sender address ignored");
2145                         return;
2146                 }
2147                 pos += 5;
2148                 if (hwaddr_aton(pos, addr) == 0) {
2149                         ieee80211_michael_mic_failure(drv->hapd, addr, 1);
2150                 } else {
2151                         wpa_printf(MSG_DEBUG,
2152                                    "MLME-MICHAELMICFAILURE.indication "
2153                                    "with invalid MAC address");
2154                 }
2155         }
2156 }
2157
2158
2159 static void hostapd_wireless_event_wireless(struct i802_driver_data *drv,
2160                                             char *data, int len)
2161 {
2162         struct iw_event iwe_buf, *iwe = &iwe_buf;
2163         char *pos, *end, *custom, *buf;
2164
2165         pos = data;
2166         end = data + len;
2167
2168         while (pos + IW_EV_LCP_LEN <= end) {
2169                 /* Event data may be unaligned, so make a local, aligned copy
2170                  * before processing. */
2171                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
2172                 wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
2173                            iwe->cmd, iwe->len);
2174                 if (iwe->len <= IW_EV_LCP_LEN)
2175                         return;
2176
2177                 custom = pos + IW_EV_POINT_LEN;
2178                 if (drv->we_version > 18 &&
2179                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
2180                      iwe->cmd == IWEVCUSTOM)) {
2181                         /* WE-19 removed the pointer from struct iw_point */
2182                         char *dpos = (char *) &iwe_buf.u.data.length;
2183                         int dlen = dpos - (char *) &iwe_buf;
2184                         memcpy(dpos, pos + IW_EV_LCP_LEN,
2185                                sizeof(struct iw_event) - dlen);
2186                 } else {
2187                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
2188                         custom += IW_EV_POINT_OFF;
2189                 }
2190
2191                 switch (iwe->cmd) {
2192                 case IWEVCUSTOM:
2193                         if (custom + iwe->u.data.length > end)
2194                                 return;
2195                         buf = malloc(iwe->u.data.length + 1);
2196                         if (buf == NULL)
2197                                 return;
2198                         memcpy(buf, custom, iwe->u.data.length);
2199                         buf[iwe->u.data.length] = '\0';
2200                         hostapd_wireless_event_wireless_custom(drv, buf);
2201                         free(buf);
2202                         break;
2203                 }
2204
2205                 pos += iwe->len;
2206         }
2207 }
2208
2209
2210 static void hostapd_wireless_event_rtm_newlink(struct i802_driver_data *drv,
2211                                                struct nlmsghdr *h, int len)
2212 {
2213         struct ifinfomsg *ifi;
2214         int attrlen, nlmsg_len, rta_len;
2215         struct rtattr *attr;
2216
2217         if (len < (int) sizeof(*ifi))
2218                 return;
2219
2220         ifi = NLMSG_DATA(h);
2221
2222         /* TODO: use ifi->ifi_index to filter out wireless events from other
2223          * interfaces */
2224
2225         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
2226
2227         attrlen = h->nlmsg_len - nlmsg_len;
2228         if (attrlen < 0)
2229                 return;
2230
2231         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
2232
2233         rta_len = RTA_ALIGN(sizeof(struct rtattr));
2234         while (RTA_OK(attr, attrlen)) {
2235                 if (attr->rta_type == IFLA_WIRELESS) {
2236                         hostapd_wireless_event_wireless(
2237                                 drv, ((char *) attr) + rta_len,
2238                                 attr->rta_len - rta_len);
2239                 }
2240                 attr = RTA_NEXT(attr, attrlen);
2241         }
2242 }
2243
2244
2245 static void hostapd_wireless_event_receive(int sock, void *eloop_ctx,
2246                                            void *sock_ctx)
2247 {
2248         char buf[256];
2249         int left;
2250         struct sockaddr_nl from;
2251         socklen_t fromlen;
2252         struct nlmsghdr *h;
2253         struct i802_driver_data *drv = eloop_ctx;
2254
2255         fromlen = sizeof(from);
2256         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
2257                         (struct sockaddr *) &from, &fromlen);
2258         if (left < 0) {
2259                 if (errno != EINTR && errno != EAGAIN)
2260                         perror("recvfrom(netlink)");
2261                 return;
2262         }
2263
2264         h = (struct nlmsghdr *) buf;
2265         while (left >= (int) sizeof(*h)) {
2266                 int len, plen;
2267
2268                 len = h->nlmsg_len;
2269                 plen = len - sizeof(*h);
2270                 if (len > left || plen < 0) {
2271                         printf("Malformed netlink message: "
2272                                "len=%d left=%d plen=%d\n",
2273                                len, left, plen);
2274                         break;
2275                 }
2276
2277                 switch (h->nlmsg_type) {
2278                 case RTM_NEWLINK:
2279                         hostapd_wireless_event_rtm_newlink(drv, h, plen);
2280                         break;
2281                 }
2282
2283                 len = NLMSG_ALIGN(len);
2284                 left -= len;
2285                 h = (struct nlmsghdr *) ((char *) h + len);
2286         }
2287
2288         if (left > 0) {
2289                 printf("%d extra bytes in the end of netlink message\n", left);
2290         }
2291 }
2292
2293
2294 static int hostap_get_we_version(struct i802_driver_data *drv)
2295 {
2296         struct iw_range *range;
2297         struct iwreq iwr;
2298         int minlen;
2299         size_t buflen;
2300
2301         drv->we_version = 0;
2302
2303         /*
2304          * Use larger buffer than struct iw_range in order to allow the
2305          * structure to grow in the future.
2306          */
2307         buflen = sizeof(struct iw_range) + 500;
2308         range = os_zalloc(buflen);
2309         if (range == NULL)
2310                 return -1;
2311
2312         memset(&iwr, 0, sizeof(iwr));
2313         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
2314         iwr.u.data.pointer = (caddr_t) range;
2315         iwr.u.data.length = buflen;
2316
2317         minlen = ((char *) &range->enc_capa) - (char *) range +
2318                 sizeof(range->enc_capa);
2319
2320         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
2321                 perror("ioctl[SIOCGIWRANGE]");
2322                 free(range);
2323                 return -1;
2324         } else if (iwr.u.data.length >= minlen &&
2325                    range->we_version_compiled >= 18) {
2326                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
2327                            "WE(source)=%d enc_capa=0x%x",
2328                            range->we_version_compiled,
2329                            range->we_version_source,
2330                            range->enc_capa);
2331                 drv->we_version = range->we_version_compiled;
2332         }
2333
2334         free(range);
2335         return 0;
2336 }
2337
2338
2339 static int i802_wireless_event_init(void *priv)
2340 {
2341         struct i802_driver_data *drv = priv;
2342         int s;
2343         struct sockaddr_nl local;
2344
2345         hostap_get_we_version(drv);
2346
2347         drv->wext_sock = -1;
2348
2349         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
2350         if (s < 0) {
2351                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
2352                 return -1;
2353         }
2354
2355         memset(&local, 0, sizeof(local));
2356         local.nl_family = AF_NETLINK;
2357         local.nl_groups = RTMGRP_LINK;
2358         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
2359                 perror("bind(netlink)");
2360                 close(s);
2361                 return -1;
2362         }
2363
2364         eloop_register_read_sock(s, hostapd_wireless_event_receive, drv,
2365                                  NULL);
2366         drv->wext_sock = s;
2367
2368         return 0;
2369 }
2370
2371
2372 static void i802_wireless_event_deinit(void *priv)
2373 {
2374         struct i802_driver_data *drv = priv;
2375         if (drv->wext_sock < 0)
2376                 return;
2377         eloop_unregister_read_sock(drv->wext_sock);
2378         close(drv->wext_sock);
2379 }
2380
2381
2382 static int i802_sta_deauth(void *priv, const u8 *addr, int reason)
2383 {
2384         struct i802_driver_data *drv = priv;
2385         struct ieee80211_mgmt mgmt;
2386
2387         memset(&mgmt, 0, sizeof(mgmt));
2388         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
2389                                           WLAN_FC_STYPE_DEAUTH);
2390         memcpy(mgmt.da, addr, ETH_ALEN);
2391         memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
2392         memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
2393         mgmt.u.deauth.reason_code = host_to_le16(reason);
2394         return i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
2395                                       sizeof(mgmt.u.deauth), 0);
2396 }
2397
2398
2399 static int i802_sta_disassoc(void *priv, const u8 *addr, int reason)
2400 {
2401         struct i802_driver_data *drv = priv;
2402         struct ieee80211_mgmt mgmt;
2403
2404         memset(&mgmt, 0, sizeof(mgmt));
2405         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
2406                                           WLAN_FC_STYPE_DISASSOC);
2407         memcpy(mgmt.da, addr, ETH_ALEN);
2408         memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
2409         memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
2410         mgmt.u.disassoc.reason_code = host_to_le16(reason);
2411         return  i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
2412                                        sizeof(mgmt.u.disassoc), 0);
2413 }
2414
2415
2416 static void *i802_init_bssid(struct hostapd_data *hapd, const u8 *bssid)
2417 {
2418         struct i802_driver_data *drv;
2419
2420         drv = os_zalloc(sizeof(struct i802_driver_data));
2421         if (drv == NULL) {
2422                 printf("Could not allocate memory for i802 driver data\n");
2423                 return NULL;
2424         }
2425
2426         drv->hapd = hapd;
2427         memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
2428
2429         drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
2430         drv->if_indices = drv->default_if_indices;
2431         drv->bridge = if_nametoindex(hapd->conf->bridge);
2432
2433         if (i802_init_sockets(drv, bssid))
2434                 goto failed;
2435
2436         return drv;
2437
2438 failed:
2439         free(drv);
2440         return NULL;
2441 }
2442
2443
2444 static void *i802_init(struct hostapd_data *hapd)
2445 {
2446         return i802_init_bssid(hapd, NULL);
2447 }
2448
2449
2450 static void i802_deinit(void *priv)
2451 {
2452         struct i802_driver_data *drv = priv;
2453
2454         if (drv->last_freq_ht) {
2455                 /* Clear HT flags from the driver */
2456                 struct hostapd_freq_params freq;
2457                 os_memset(&freq, 0, sizeof(freq));
2458                 freq.freq = drv->last_freq;
2459                 i802_set_freq2(priv, &freq);
2460         }
2461
2462         i802_del_beacon(drv);
2463
2464         /* remove monitor interface */
2465         nl80211_remove_iface(drv, drv->monitor_ifidx);
2466
2467         (void) hostapd_set_iface_flags(drv, drv->iface, 0);
2468
2469         if (drv->monitor_sock >= 0) {
2470                 eloop_unregister_read_sock(drv->monitor_sock);
2471                 close(drv->monitor_sock);
2472         }
2473         if (drv->ioctl_sock >= 0)
2474                 close(drv->ioctl_sock);
2475         if (drv->eapol_sock >= 0) {
2476                 eloop_unregister_read_sock(drv->eapol_sock);
2477                 close(drv->eapol_sock);
2478         }
2479
2480         genl_family_put(drv->nl80211);
2481         nl_cache_free(drv->nl_cache);
2482         nl_handle_destroy(drv->nl_handle);
2483         nl_cb_put(drv->nl_cb);
2484
2485         if (drv->if_indices != drv->default_if_indices)
2486                 free(drv->if_indices);
2487
2488         free(drv);
2489 }
2490
2491
2492 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
2493         .name = "nl80211",
2494         .init = i802_init,
2495         .init_bssid = i802_init_bssid,
2496         .deinit = i802_deinit,
2497         .wireless_event_init = i802_wireless_event_init,
2498         .wireless_event_deinit = i802_wireless_event_deinit,
2499         .set_ieee8021x = i802_set_ieee8021x,
2500         .set_privacy = i802_set_privacy,
2501         .set_encryption = i802_set_encryption,
2502         .get_seqnum = i802_get_seqnum,
2503         .flush = i802_flush,
2504         .read_sta_data = i802_read_sta_data,
2505         .send_eapol = i802_send_eapol,
2506         .sta_set_flags = i802_sta_set_flags,
2507         .sta_deauth = i802_sta_deauth,
2508         .sta_disassoc = i802_sta_disassoc,
2509         .sta_remove = i802_sta_remove,
2510         .send_mgmt_frame = i802_send_mgmt_frame,
2511         .sta_add2 = i802_sta_add2,
2512         .get_inact_sec = i802_get_inact_sec,
2513         .sta_clear_stats = i802_sta_clear_stats,
2514         .set_freq2 = i802_set_freq2,
2515         .set_rts = i802_set_rts,
2516         .get_rts = i802_get_rts,
2517         .set_frag = i802_set_frag,
2518         .get_frag = i802_get_frag,
2519         .set_retry = i802_set_retry,
2520         .get_retry = i802_get_retry,
2521         .set_rate_sets = i802_set_rate_sets,
2522         .set_regulatory_domain = i802_set_regulatory_domain,
2523         .set_beacon = i802_set_beacon,
2524         .set_internal_bridge = i802_set_internal_bridge,
2525         .set_beacon_int = i802_set_beacon_int,
2526         .set_dtim_period = i802_set_dtim_period,
2527         .set_cts_protect = i802_set_cts_protect,
2528         .set_preamble = i802_set_preamble,
2529         .set_short_slot_time = i802_set_short_slot_time,
2530         .set_tx_queue_params = i802_set_tx_queue_params,
2531         .bss_add = i802_bss_add,
2532         .bss_remove = i802_bss_remove,
2533         .if_add = i802_if_add,
2534         .if_update = i802_if_update,
2535         .if_remove = i802_if_remove,
2536         .get_hw_feature_data = i802_get_hw_feature_data,
2537         .set_sta_vlan = i802_set_sta_vlan,
2538         .set_country = i802_set_country,
2539 };