src/drivers/driver_bsd.c

   1 /*
   2  * WPA Supplicant - driver interaction with BSD net80211 layer
   3  * Copyright (c) 2004, Sam Leffler <sam@errno.com>
   4  * Copyright (c) 2004, 2Wire, Inc
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #include "includes.h"
  17 #include <sys/ioctl.h>
  18
  19 #include "common.h"
  20 #include "driver.h"
  21 #include "eloop.h"
  22 #include "common/ieee802_11_defs.h"
  23
  24 #include <net/if.h>
  25 #include <net/if_media.h>
  26
  27 #ifdef __NetBSD__
  28 #include <net/if_ether.h>
  29 #else
  30 #include <net/ethernet.h>
  31 #endif
  32 #include <net/route.h>
  33
  34 #ifdef __DragonFly__
  35 #include <netproto/802_11/ieee80211_ioctl.h>
  36 #include <netproto/802_11/ieee80211_dragonfly.h>
  37 #else /* __DragonFly__ */
  38 #include <net80211/ieee80211.h>
  39 #include <net80211/ieee80211_ioctl.h>
  40 #include <net80211/ieee80211_crypto.h>
  41 #endif /* __DragonFly__ */
  42 #if __FreeBSD__
  43 #include <net80211/ieee80211_freebsd.h>
  44 #endif
  45 #if __NetBSD__
  46 #include <net80211/ieee80211_netbsd.h>
  47 #endif
  48
  49 #include "l2_packet/l2_packet.h"
  50
  51 struct bsd_driver_data {
  52         struct hostapd_data *hapd;      /* back pointer */
  53
  54         int     sock;                   /* open socket for 802.11 ioctls */
  55         struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
  56         int     route;                  /* routing socket for events */
  57         char    ifname[IFNAMSIZ+1];     /* interface name */
  58         unsigned int ifindex;           /* interface index */
  59         void    *ctx;
  60         struct wpa_driver_capa capa;    /* driver capability */
  61         int     is_ap;                  /* Access point mode */
  62         int     prev_roaming;   /* roaming state to restore on deinit */
  63         int     prev_privacy;   /* privacy state to restore on deinit */
  64         int     prev_wpa;       /* wpa state to restore on deinit */
  65 };
  66
  67 /* Generic functions for hostapd and wpa_supplicant */
  68
  69 static int
  70 bsd_set80211var(int s, const char *ifname, int op, const void *arg, int arg_len)
  71 {
  72         struct ieee80211req ireq;
  73
  74         os_memset(&ireq, 0, sizeof(ireq));
  75         os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
  76         ireq.i_type = op;
  77         ireq.i_len = arg_len;
  78         ireq.i_data = (void *) arg;
  79
  80         if (ioctl(s, SIOCS80211, &ireq) < 0) {
  81                 fprintf(stderr, "ioctl[SIOCS80211, op %u, len %u]: %s\n",
  82                         op, arg_len, strerror(errno));
  83                 return -1;
  84         }
  85         return 0;
  86 }
  87
  88 static int
  89 bsd_get80211var(int s, const char *ifname, int op, void *arg, int arg_len)
  90 {
  91         struct ieee80211req ireq;
  92
  93         os_memset(&ireq, 0, sizeof(ireq));
  94         os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
  95         ireq.i_type = op;
  96         ireq.i_len = arg_len;
  97         ireq.i_data = arg;
  98
  99         if (ioctl(s, SIOCG80211, &ireq) < 0) {
 100                 fprintf(stderr, "ioctl[SIOCG80211, op %u, len %u]: %s\n",
 101                         op, arg_len, strerror(errno));
 102                 return -1;
 103         }
 104         return ireq.i_len;
 105 }
 106
 107 static int
 108 bsd_set80211param(int s, const char *ifname, int op, int arg)
 109 {
 110         struct ieee80211req ireq;
 111
 112         os_memset(&ireq, 0, sizeof(ireq));
 113         os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
 114         ireq.i_type = op;
 115         ireq.i_val = arg;
 116
 117         if (ioctl(s, SIOCS80211, &ireq) < 0) {
 118                 fprintf(stderr, "ioctl[SIOCS80211, op %u, arg 0x%x]: %s\n",
 119                         op, arg, strerror(errno));
 120                 return -1;
 121         }
 122         return 0;
 123 }
 124
 125 static int
 126 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
 127 {
 128         return bsd_get80211var(drv->sock, drv->ifname, op, arg, arg_len);
 129 }
 130
 131 static int
 132 set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
 133 {
 134         return bsd_set80211var(drv->sock, drv->ifname, op, arg, arg_len);
 135 }
 136
 137 static int
 138 set80211param(struct bsd_driver_data *drv, int op, int arg)
 139 {
 140         return bsd_set80211param(drv->sock, drv->ifname, op, arg);
 141 }
 142
 143 static int
 144 bsd_get_ssid(const char *ifname, void *priv, u8 *ssid, int len)
 145 {
 146         struct bsd_driver_data *drv = priv;
 147 #ifdef SIOCG80211NWID
 148         struct ieee80211_nwid nwid;
 149         struct ifreq ifr;
 150
 151         os_memset(&ifr, 0, sizeof(ifr));
 152         os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
 153         ifr.ifr_data = (void *)&nwid;
 154         if (ioctl(drv->sock, SIOCG80211NWID, &ifr) < 0 ||
 155             nwid.i_len > IEEE80211_NWID_LEN)
 156                 return -1;
 157         os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
 158         return nwid.i_len;
 159 #else
 160         return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
 161 #endif
 162 }
 163
 164 static int
 165 bsd_set_ssid(const char *ifname, void *priv, const u8 *ssid, int ssid_len)
 166 {
 167         struct bsd_driver_data *drv = priv;
 168 #ifdef SIOCS80211NWID
 169         struct ieee80211_nwid nwid;
 170         struct ifreq ifr;
 171
 172         os_memcpy(nwid.i_nwid, ssid, ssid_len);
 173         nwid.i_len = ssid_len;
 174         os_memset(&ifr, 0, sizeof(ifr));
 175         os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
 176         ifr.ifr_data = (void *)&nwid;
 177         return ioctl(drv->sock, SIOCS80211NWID, &ifr);
 178 #else
 179         return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
 180 #endif
 181 }
 182
 183 static int
 184 bsd_get_if_media(void *priv)
 185 {
 186         struct bsd_driver_data *drv = priv;
 187         struct ifmediareq ifmr;
 188
 189         os_memset(&ifmr, 0, sizeof(ifmr));
 190         os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
 191
 192         if (ioctl(drv->sock, SIOCGIFMEDIA, &ifmr) < 0) {
 193                 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
 194                            strerror(errno));
 195                 return -1;
 196         }
 197
 198         return ifmr.ifm_current;
 199 }
 200
 201 static int
 202 bsd_set_if_media(void *priv, int media)
 203 {
 204         struct bsd_driver_data *drv = priv;
 205         struct ifreq ifr;
 206
 207         os_memset(&ifr, 0, sizeof(ifr));
 208         os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
 209         ifr.ifr_media = media;
 210
 211         if (ioctl(drv->sock, SIOCSIFMEDIA, &ifr) < 0) {
 212                 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
 213                            strerror(errno));
 214                 return -1;
 215         }
 216
 217         return 0;
 218 }
 219
 220 static int
 221 bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
 222 {
 223         int media = bsd_get_if_media(priv);
 224
 225         if (media < 0)
 226                 return -1;
 227         media &= ~mask;
 228         media |= mode;
 229         if (bsd_set_if_media(priv, media) < 0)
 230                 return -1;
 231         return 0;
 232 }
 233
 234 static int
 235 bsd_del_key(void *priv, const u8 *addr, int key_idx)
 236 {
 237         struct ieee80211req_del_key wk;
 238
 239         os_memset(&wk, 0, sizeof(wk));
 240         if (addr == NULL) {
 241                 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
 242                 wk.idk_keyix = key_idx;
 243         } else {
 244                 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
 245                            MAC2STR(addr));
 246                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 247                 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
 248         }
 249
 250         return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
 251 }
 252
 253 static int
 254 bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
 255 {
 256         struct ieee80211req_mlme mlme;
 257
 258         os_memset(&mlme, 0, sizeof(mlme));
 259         mlme.im_op = op;
 260         mlme.im_reason = reason;
 261         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 262         return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
 263 }
 264
 265 static int
 266 bsd_ctrl_iface(void *priv, int enable)
 267 {
 268         struct bsd_driver_data *drv = priv;
 269         struct ifreq ifr;
 270
 271         os_memset(&ifr, 0, sizeof(ifr));
 272         os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
 273
 274         if (ioctl(drv->sock, SIOCGIFFLAGS, &ifr) < 0) {
 275                 perror("ioctl[SIOCGIFFLAGS]");
 276                 return -1;
 277         }
 278
 279         if (enable)
 280                 ifr.ifr_flags |= IFF_UP;
 281         else
 282                 ifr.ifr_flags &= ~IFF_UP;
 283
 284         if (ioctl(drv->sock, SIOCSIFFLAGS, &ifr) < 0) {
 285                 perror("ioctl[SIOCSIFFLAGS]");
 286                 return -1;
 287         }
 288
 289         return 0;
 290 }
 291
 292 static int
 293 bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 294             const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
 295             size_t seq_len, const u8 *key, size_t key_len)
 296 {
 297         struct ieee80211req_key wk;
 298
 299         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
 300                    "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
 301                    set_tx, seq_len, key_len);
 302
 303         if (alg == WPA_ALG_NONE) {
 304 #ifndef HOSTAPD
 305                 if (addr == NULL ||
 306                     os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
 307                               IEEE80211_ADDR_LEN) == 0)
 308                         return bsd_del_key(priv, NULL, key_idx);
 309                 else
 310 #endif /* HOSTAPD */
 311                         return bsd_del_key(priv, addr, key_idx);
 312         }
 313
 314         os_memset(&wk, 0, sizeof(wk));
 315         switch (alg) {
 316         case WPA_ALG_WEP:
 317                 wk.ik_type = IEEE80211_CIPHER_WEP;
 318                 break;
 319         case WPA_ALG_TKIP:
 320                 wk.ik_type = IEEE80211_CIPHER_TKIP;
 321                 break;
 322         case WPA_ALG_CCMP:
 323                 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
 324                 break;
 325         default:
 326                 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
 327                 return -1;
 328         }
 329
 330         wk.ik_flags = IEEE80211_KEY_RECV;
 331         if (set_tx)
 332                 wk.ik_flags |= IEEE80211_KEY_XMIT;
 333
 334         if (addr == NULL) {
 335                 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 336                 wk.ik_keyix = key_idx;
 337         } else {
 338                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 339                 /*
 340                  * Deduce whether group/global or unicast key by checking
 341                  * the address (yech).  Note also that we can only mark global
 342                  * keys default; doing this for a unicast key is an error.
 343                  */
 344                 if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
 345                               IEEE80211_ADDR_LEN) == 0) {
 346                         wk.ik_flags |= IEEE80211_KEY_GROUP;
 347                         wk.ik_keyix = key_idx;
 348                 } else {
 349                         wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
 350                                 key_idx;
 351                 }
 352         }
 353         if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
 354                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 355         wk.ik_keylen = key_len;
 356         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
 357         os_memcpy(wk.ik_keydata, key, key_len);
 358
 359         return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
 360 }
 361
 362 static int
 363 bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
 364 {
 365         static const char *ciphernames[] =
 366                 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
 367         int v;
 368
 369         switch (params->wpa_group) {
 370         case WPA_CIPHER_CCMP:
 371                 v = IEEE80211_CIPHER_AES_CCM;
 372                 break;
 373         case WPA_CIPHER_TKIP:
 374                 v = IEEE80211_CIPHER_TKIP;
 375                 break;
 376         case WPA_CIPHER_WEP104:
 377                 v = IEEE80211_CIPHER_WEP;
 378                 break;
 379         case WPA_CIPHER_WEP40:
 380                 v = IEEE80211_CIPHER_WEP;
 381                 break;
 382         case WPA_CIPHER_NONE:
 383                 v = IEEE80211_CIPHER_NONE;
 384                 break;
 385         default:
 386                 printf("Unknown group key cipher %u\n",
 387                         params->wpa_group);
 388                 return -1;
 389         }
 390         wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
 391                    __func__, ciphernames[v], v);
 392         if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
 393                 printf("Unable to set group key cipher to %u (%s)\n",
 394                         v, ciphernames[v]);
 395                 return -1;
 396         }
 397         if (v == IEEE80211_CIPHER_WEP) {
 398                 /* key length is done only for specific ciphers */
 399                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 400                 if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
 401                         printf("Unable to set group key length to %u\n", v);
 402                         return -1;
 403                 }
 404         }
 405
 406         v = 0;
 407         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 408                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 409         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 410                 v |= 1<<IEEE80211_CIPHER_TKIP;
 411         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 412                 v |= 1<<IEEE80211_CIPHER_NONE;
 413         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 414         if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
 415                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 416                 return -1;
 417         }
 418
 419         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 420                    __func__, params->wpa_key_mgmt);
 421         if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
 422                           params->wpa_key_mgmt)) {
 423                 printf("Unable to set key management algorithms to 0x%x\n",
 424                         params->wpa_key_mgmt);
 425                 return -1;
 426         }
 427
 428         v = 0;
 429         if (params->rsn_preauth)
 430                 v |= BIT(0);
 431         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 432                    __func__, params->rsn_preauth);
 433         if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
 434                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 435                 return -1;
 436         }
 437
 438         wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
 439         if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
 440                 printf("Unable to set WPA to %u\n", params->wpa);
 441                 return -1;
 442         }
 443         return 0;
 444 }
 445
 446 static int
 447 bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 448 {
 449         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 450
 451         if (!params->enabled) {
 452                 /* XXX restore state */
 453                 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
 454                                      IEEE80211_AUTH_AUTO);
 455         }
 456         if (!params->wpa && !params->ieee802_1x) {
 457                 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
 458                            __func__);
 459                 return -1;
 460         }
 461         if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
 462                 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
 463                            __func__);
 464                 return -1;
 465         }
 466         if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
 467                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 468                 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
 469                            __func__);
 470                 return -1;
 471         }
 472         return bsd_ctrl_iface(priv, 1);
 473 }
 474
 475 static int
 476 bsd_set_sta_authorized(void *priv, const u8 *addr, int total_flags,
 477                        int flags_or, int flags_and)
 478 {
 479         int authorized = -1;
 480
 481         /* For now, only support setting Authorized flag */
 482         if (flags_or & WPA_STA_AUTHORIZED)
 483                 authorized = 1;
 484         if (!(flags_and & WPA_STA_AUTHORIZED))
 485                 authorized = 0;
 486
 487         if (authorized < 0)
 488                 return 0;
 489
 490         return bsd_send_mlme_param(priv, authorized ?
 491                                    IEEE80211_MLME_AUTHORIZE :
 492                                    IEEE80211_MLME_UNAUTHORIZE, 0, addr);
 493 }
 494
 495 static void
 496 bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
 497 {
 498         struct ieee80211req_wpaie ie;
 499         int ielen = 0;
 500         u8 *iebuf = NULL;
 501
 502         /*
 503          * Fetch and validate any negotiated WPA/RSN parameters.
 504          */
 505         memset(&ie, 0, sizeof(ie));
 506         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 507         if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
 508                 printf("Failed to get WPA/RSN information element.\n");
 509                 goto no_ie;
 510         }
 511         iebuf = ie.wpa_ie;
 512         ielen = ie.wpa_ie[1];
 513         if (ielen == 0)
 514                 iebuf = NULL;
 515         else
 516                 ielen += 2;
 517
 518 no_ie:
 519         drv_event_assoc(ctx, addr, iebuf, ielen);
 520 }
 521
 522 static int
 523 bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
 524                int encrypt, const u8 *own_addr)
 525 {
 526         struct bsd_driver_data *drv = priv;
 527
 528         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
 529
 530         return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
 531                               data_len);
 532 }
 533
 534 static int
 535 bsd_set_freq(void *priv, u16 channel)
 536 {
 537         struct bsd_driver_data *drv = priv;
 538 #ifdef SIOCS80211CHANNEL
 539         struct ieee80211chanreq creq;
 540 #endif /* SIOCS80211CHANNEL */
 541         u32 mode;
 542
 543         if (channel < 14)
 544                 mode = IFM_IEEE80211_11G;
 545         else if (channel == 14)
 546                 mode = IFM_IEEE80211_11B;
 547         else
 548                 mode = IFM_IEEE80211_11A;
 549         if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
 550                 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
 551                            __func__);
 552                 return -1;
 553         }
 554
 555 #ifdef SIOCS80211CHANNEL
 556         os_memset(&creq, 0, sizeof(creq));
 557         os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
 558         creq.i_channel = channel;
 559         return ioctl(drv->sock, SIOCS80211CHANNEL, &creq);
 560 #else /* SIOCS80211CHANNEL */
 561         return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
 562 #endif /* SIOCS80211CHANNEL */
 563 }
 564
 565
 566 #ifdef HOSTAPD
 567
 568 /*
 569  * Avoid conflicts with hostapd definitions by undefining couple of defines
 570  * from net80211 header files.
 571  */
 572 #undef RSN_VERSION
 573 #undef WPA_VERSION
 574 #undef WPA_OUI_TYPE
 575
 576 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 577                           int reason_code);
 578
 579 static const char *
 580 ether_sprintf(const u8 *addr)
 581 {
 582         static char buf[sizeof(MACSTR)];
 583
 584         if (addr != NULL)
 585                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 586         else
 587                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 588         return buf;
 589 }
 590
 591 static int
 592 bsd_set_privacy(const char *ifname, void *priv, int enabled)
 593 {
 594         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 595
 596         return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
 597 }
 598
 599 static int
 600 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 601                u8 *seq)
 602 {
 603         struct ieee80211req_key wk;
 604
 605         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 606                    __func__, ether_sprintf(addr), idx);
 607
 608         memset(&wk, 0, sizeof(wk));
 609         if (addr == NULL)
 610                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 611         else
 612                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 613         wk.ik_keyix = idx;
 614
 615         if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
 616                 printf("Failed to get encryption.\n");
 617                 return -1;
 618         }
 619
 620 #ifdef WORDS_BIGENDIAN
 621         {
 622                 /*
 623                  * wk.ik_keytsc is in host byte order (big endian), need to
 624                  * swap it to match with the byte order used in WPA.
 625                  */
 626                 int i;
 627                 u8 tmp[WPA_KEY_RSC_LEN];
 628                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 629                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 630                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 631                 }
 632         }
 633 #else /* WORDS_BIGENDIAN */
 634         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 635 #endif /* WORDS_BIGENDIAN */
 636         return 0;
 637 }
 638
 639
 640 static int
 641 bsd_flush(void *priv)
 642 {
 643         u8 allsta[IEEE80211_ADDR_LEN];
 644
 645         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 646         return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
 647 }
 648
 649
 650 static int
 651 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 652                          const u8 *addr)
 653 {
 654         struct ieee80211req_sta_stats stats;
 655
 656         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 657         if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
 658             > 0) {
 659                 /* XXX? do packets counts include non-data frames? */
 660                 data->rx_packets = stats.is_stats.ns_rx_data;
 661                 data->rx_bytes = stats.is_stats.ns_rx_bytes;
 662                 data->tx_packets = stats.is_stats.ns_tx_data;
 663                 data->tx_bytes = stats.is_stats.ns_tx_bytes;
 664         }
 665         return 0;
 666 }
 667
 668 static int
 669 bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
 670 {
 671         /*
 672          * Do nothing; we setup parameters at startup that define the
 673          * contents of the beacon information element.
 674          */
 675         return 0;
 676 }
 677
 678 static int
 679 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
 680 {
 681         return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
 682                                    addr);
 683 }
 684
 685 static int
 686 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 687                  int reason_code)
 688 {
 689         return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
 690                                    addr);
 691 }
 692
 693 static void
 694 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
 695 {
 696         struct bsd_driver_data *drv = ctx;
 697         char buf[2048];
 698         struct if_announcemsghdr *ifan;
 699         struct rt_msghdr *rtm;
 700         struct ieee80211_michael_event *mic;
 701         struct ieee80211_join_event *join;
 702         struct ieee80211_leave_event *leave;
 703         int n;
 704         union wpa_event_data data;
 705
 706         n = read(sock, buf, sizeof(buf));
 707         if (n < 0) {
 708                 if (errno != EINTR && errno != EAGAIN)
 709                         perror("read(PF_ROUTE)");
 710                 return;
 711         }
 712
 713         rtm = (struct rt_msghdr *) buf;
 714         if (rtm->rtm_version != RTM_VERSION) {
 715                 wpa_printf(MSG_DEBUG, "Routing message version %d not "
 716                         "understood\n", rtm->rtm_version);
 717                 return;
 718         }
 719         ifan = (struct if_announcemsghdr *) rtm;
 720         switch (rtm->rtm_type) {
 721         case RTM_IEEE80211:
 722                 switch (ifan->ifan_what) {
 723                 case RTM_IEEE80211_ASSOC:
 724                 case RTM_IEEE80211_REASSOC:
 725                 case RTM_IEEE80211_DISASSOC:
 726                 case RTM_IEEE80211_SCAN:
 727                         break;
 728                 case RTM_IEEE80211_LEAVE:
 729                         leave = (struct ieee80211_leave_event *) &ifan[1];
 730                         drv_event_disassoc(drv->hapd, leave->iev_addr);
 731                         break;
 732                 case RTM_IEEE80211_JOIN:
 733 #ifdef RTM_IEEE80211_REJOIN
 734                 case RTM_IEEE80211_REJOIN:
 735 #endif
 736                         join = (struct ieee80211_join_event *) &ifan[1];
 737                         bsd_new_sta(drv, drv->hapd, join->iev_addr);
 738                         break;
 739                 case RTM_IEEE80211_REPLAY:
 740                         /* ignore */
 741                         break;
 742                 case RTM_IEEE80211_MICHAEL:
 743                         mic = (struct ieee80211_michael_event *) &ifan[1];
 744                         wpa_printf(MSG_DEBUG,
 745                                 "Michael MIC failure wireless event: "
 746                                 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
 747                                 MAC2STR(mic->iev_src));
 748                         os_memset(&data, 0, sizeof(data));
 749                         data.michael_mic_failure.unicast = 1;
 750                         data.michael_mic_failure.src = mic->iev_src;
 751                         wpa_supplicant_event(drv->hapd,
 752                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 753                         break;
 754                 }
 755                 break;
 756         }
 757 }
 758
 759 static void
 760 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
 761 {
 762         struct bsd_driver_data *drv = ctx;
 763         drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
 764 }
 765
 766 static int
 767 hostapd_bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
 768 {
 769         return bsd_set_freq(priv, freq->channel);
 770 }
 771
 772 static void *
 773 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
 774 {
 775         struct bsd_driver_data *drv;
 776
 777         drv = os_zalloc(sizeof(struct bsd_driver_data));
 778         if (drv == NULL) {
 779                 printf("Could not allocate memory for bsd driver data\n");
 780                 goto bad;
 781         }
 782
 783         drv->hapd = hapd;
 784         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
 785         if (drv->sock < 0) {
 786                 perror("socket[PF_INET,SOCK_DGRAM]");
 787                 goto bad;
 788         }
 789         os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
 790
 791         drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
 792                                         handle_read, drv, 0);
 793         if (drv->sock_xmit == NULL)
 794                 goto bad;
 795         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
 796                 goto bad;
 797
 798         /* mark down during setup */
 799         if (bsd_ctrl_iface(drv, 0) < 0)
 800                 goto bad;
 801
 802         drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
 803         if (drv->route < 0) {
 804                 perror("socket(PF_ROUTE,SOCK_RAW)");
 805                 goto bad;
 806         }
 807         eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
 808                                  NULL);
 809
 810         if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
 811                 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
 812                            __func__);
 813                 goto bad;
 814         }
 815
 816         return drv;
 817 bad:
 818         if (drv->sock_xmit != NULL)
 819                 l2_packet_deinit(drv->sock_xmit);
 820         if (drv->sock >= 0)
 821                 close(drv->sock);
 822         if (drv != NULL)
 823                 os_free(drv);
 824         return NULL;
 825 }
 826
 827
 828 static void
 829 bsd_deinit(void *priv)
 830 {
 831         struct bsd_driver_data *drv = priv;
 832
 833         if (drv->route >= 0) {
 834                 eloop_unregister_read_sock(drv->route);
 835                 close(drv->route);
 836         }
 837         bsd_ctrl_iface(drv, 0);
 838         if (drv->sock >= 0)
 839                 close(drv->sock);
 840         if (drv->sock_xmit != NULL)
 841                 l2_packet_deinit(drv->sock_xmit);
 842         os_free(drv);
 843 }
 844
 845 #else /* HOSTAPD */
 846
 847 static int
 848 get80211param(struct bsd_driver_data *drv, int op)
 849 {
 850         struct ieee80211req ireq;
 851
 852         os_memset(&ireq, 0, sizeof(ireq));
 853         os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
 854         ireq.i_type = op;
 855
 856         if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
 857                 fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
 858                         op, strerror(errno));
 859                 return -1;
 860         }
 861         return ireq.i_val;
 862 }
 863
 864 static int
 865 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
 866 {
 867         struct bsd_driver_data *drv = priv;
 868 #ifdef SIOCG80211BSSID
 869         struct ieee80211_bssid bs;
 870
 871         os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
 872         if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
 873                 return -1;
 874         os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
 875         return 0;
 876 #else
 877         return get80211var(drv, IEEE80211_IOC_BSSID,
 878                 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
 879 #endif
 880 }
 881
 882 static int
 883 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
 884 {
 885         struct bsd_driver_data *drv = priv;
 886         return bsd_get_ssid(drv->ifname, drv, ssid, 0);
 887 }
 888
 889 static int
 890 wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
 891                           size_t wpa_ie_len)
 892 {
 893 #ifdef IEEE80211_IOC_APPIE
 894         return set80211var(drv, IEEE80211_IOC_APPIE, wpa_ie, wpa_ie_len);
 895 #else /* IEEE80211_IOC_APPIE */
 896         return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
 897 #endif /* IEEE80211_IOC_APPIE */
 898 }
 899
 900 static int
 901 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
 902 {
 903         int ret = 0;
 904
 905         wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
 906                 __FUNCTION__, wpa, privacy);
 907
 908         if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
 909                 ret = -1;
 910         if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
 911                 ret = -1;
 912         if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
 913                 ret = -1;
 914
 915         return ret;
 916 }
 917
 918 static int
 919 wpa_driver_bsd_set_wpa(void *priv, int enabled)
 920 {
 921         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
 922
 923         return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
 924 }
 925
 926 static int
 927 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
 928 {
 929         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 930         return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
 931 }
 932
 933
 934 static int
 935 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
 936 {
 937         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 938         return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
 939 }
 940
 941 static int
 942 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
 943 {
 944         return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
 945                                    addr);
 946 }
 947
 948 static int
 949 wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
 950 {
 951         return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
 952                                    addr);
 953 }
 954
 955 static int
 956 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
 957 {
 958         int authmode;
 959
 960         if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
 961             (auth_alg & WPA_AUTH_ALG_SHARED))
 962                 authmode = IEEE80211_AUTH_AUTO;
 963         else if (auth_alg & WPA_AUTH_ALG_SHARED)
 964                 authmode = IEEE80211_AUTH_SHARED;
 965         else
 966                 authmode = IEEE80211_AUTH_OPEN;
 967
 968         return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
 969 }
 970
 971 static void
 972 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
 973 {
 974         struct bsd_driver_data *drv = ctx;
 975
 976         drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
 977 }
 978
 979 static int
 980 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
 981 {
 982         struct bsd_driver_data *drv = priv;
 983         struct ieee80211req_mlme mlme;
 984         u32 mode;
 985         u16 channel;
 986         int privacy;
 987         int ret = 0;
 988
 989         wpa_printf(MSG_DEBUG,
 990                 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
 991                 , __func__
 992                    , (unsigned int) params->ssid_len, params->ssid
 993                 , (unsigned int) params->wpa_ie_len
 994                 , params->pairwise_suite
 995                 , params->group_suite
 996                 , params->key_mgmt_suite
 997         );
 998
 999         switch (params->mode) {
1000         case IEEE80211_MODE_INFRA:
1001                 mode = 0 /* STA */;
1002                 break;
1003         case IEEE80211_MODE_IBSS:
1004                 mode = IFM_IEEE80211_IBSS;
1005                 break;
1006         case IEEE80211_MODE_AP:
1007                 mode = IFM_IEEE80211_HOSTAP;
1008                 break;
1009         default:
1010                 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1011                 return -1;
1012         }
1013         if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1014                 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1015                            __func__);
1016                 return -1;
1017         }
1018
1019         if (params->mode == IEEE80211_MODE_AP) {
1020                 if (params->freq >= 2412 && params->freq <= 2472)
1021                         channel = (params->freq - 2407) / 5;
1022                 else if (params->freq == 2484)
1023                         channel = 14;
1024                 else if ((params->freq >= 5180 && params->freq <= 5240) ||
1025                          (params->freq >= 5745 && params->freq <= 5825))
1026                         channel = (params->freq - 5000) / 5;
1027                 else
1028                         channel = 0;
1029                 if (bsd_set_freq(drv, channel) < 0)
1030                         return -1;
1031
1032                 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1033                                                 handle_read, drv, 0);
1034                 if (drv->sock_xmit == NULL)
1035                         return -1;
1036                 drv->is_ap = 1;
1037                 return 0;
1038         }
1039
1040         if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1041             < 0)
1042                 ret = -1;
1043         if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1044                 ret = -1;
1045         /* XXX error handling is wrong but unclear what to do... */
1046         if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1047                 return -1;
1048
1049         privacy = !(params->pairwise_suite == CIPHER_NONE &&
1050             params->group_suite == CIPHER_NONE &&
1051             params->key_mgmt_suite == KEY_MGMT_NONE &&
1052             params->wpa_ie_len == 0);
1053         wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1054
1055         if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1056                 return -1;
1057
1058         if (params->wpa_ie_len &&
1059             set80211param(drv, IEEE80211_IOC_WPA,
1060                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1061                 return -1;
1062
1063         os_memset(&mlme, 0, sizeof(mlme));
1064         mlme.im_op = IEEE80211_MLME_ASSOC;
1065         if (params->ssid != NULL)
1066                 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1067         mlme.im_ssid_len = params->ssid_len;
1068         if (params->bssid != NULL)
1069                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1070         if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1071                 return -1;
1072         return ret;
1073 }
1074
1075 static int
1076 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1077 {
1078         struct bsd_driver_data *drv = priv;
1079         const u8 *ssid = params->ssids[0].ssid;
1080         size_t ssid_len = params->ssids[0].ssid_len;
1081
1082         if (set80211param(drv, IEEE80211_IOC_ROAMING,
1083                           IEEE80211_ROAMING_MANUAL) < 0) {
1084                 wpa_printf(MSG_ERROR, "%s: failed to set "
1085                            "wpa_supplicant-based roaming: %s", __func__,
1086                            strerror(errno));
1087                 return -1;
1088         }
1089
1090         if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1091                 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1092                            strerror(errno));
1093                 return -1;
1094         }
1095
1096         /* NB: interface must be marked UP to do a scan */
1097         if (bsd_ctrl_iface(drv, 1) < 0)
1098                 return -1;
1099
1100         /* set desired ssid before scan */
1101         if (bsd_set_ssid(drv->ifname, drv, ssid, ssid_len) < 0)
1102                 return -1;
1103
1104         /* NB: net80211 delivers a scan complete event so no need to poll */
1105         return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1106 }
1107
1108 static void
1109 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1110 {
1111         struct bsd_driver_data *drv = sock_ctx;
1112         char buf[2048];
1113         struct if_announcemsghdr *ifan;
1114         struct if_msghdr *ifm;
1115         struct rt_msghdr *rtm;
1116         union wpa_event_data event;
1117         struct ieee80211_michael_event *mic;
1118         struct ieee80211_leave_event *leave;
1119         struct ieee80211_join_event *join;
1120         int n;
1121
1122         n = read(sock, buf, sizeof(buf));
1123         if (n < 0) {
1124                 if (errno != EINTR && errno != EAGAIN)
1125                         perror("read(PF_ROUTE)");
1126                 return;
1127         }
1128
1129         rtm = (struct rt_msghdr *) buf;
1130         if (rtm->rtm_version != RTM_VERSION) {
1131                 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1132                         "understood\n", rtm->rtm_version);
1133                 return;
1134         }
1135         os_memset(&event, 0, sizeof(event));
1136         switch (rtm->rtm_type) {
1137         case RTM_IFANNOUNCE:
1138                 ifan = (struct if_announcemsghdr *) rtm;
1139                 if (ifan->ifan_index != drv->ifindex)
1140                         break;
1141                 strlcpy(event.interface_status.ifname, drv->ifname,
1142                         sizeof(event.interface_status.ifname));
1143                 switch (ifan->ifan_what) {
1144                 case IFAN_DEPARTURE:
1145                         event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1146                 default:
1147                         return;
1148                 }
1149                 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1150                            event.interface_status.ifname,
1151                            ifan->ifan_what == IFAN_DEPARTURE ?
1152                                 "removed" : "added");
1153                 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1154                 break;
1155         case RTM_IEEE80211:
1156                 ifan = (struct if_announcemsghdr *) rtm;
1157                 if (ifan->ifan_index != drv->ifindex)
1158                         break;
1159                 switch (ifan->ifan_what) {
1160                 case RTM_IEEE80211_ASSOC:
1161                 case RTM_IEEE80211_REASSOC:
1162                         if (drv->is_ap)
1163                                 break;
1164                         wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1165                         break;
1166                 case RTM_IEEE80211_DISASSOC:
1167                         if (drv->is_ap)
1168                                 break;
1169                         wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1170                         break;
1171                 case RTM_IEEE80211_SCAN:
1172                         if (drv->is_ap)
1173                                 break;
1174                         wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1175                         break;
1176                 case RTM_IEEE80211_LEAVE:
1177                         leave = (struct ieee80211_leave_event *) &ifan[1];
1178                         drv_event_disassoc(ctx, leave->iev_addr);
1179                         break;
1180                 case RTM_IEEE80211_JOIN:
1181 #ifdef RTM_IEEE80211_REJOIN
1182                 case RTM_IEEE80211_REJOIN:
1183 #endif
1184                         join = (struct ieee80211_join_event *) &ifan[1];
1185                         bsd_new_sta(drv, ctx, join->iev_addr);
1186                         break;
1187                 case RTM_IEEE80211_REPLAY:
1188                         /* ignore */
1189                         break;
1190                 case RTM_IEEE80211_MICHAEL:
1191                         mic = (struct ieee80211_michael_event *) &ifan[1];
1192                         wpa_printf(MSG_DEBUG,
1193                                 "Michael MIC failure wireless event: "
1194                                 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1195                                 MAC2STR(mic->iev_src));
1196
1197                         os_memset(&event, 0, sizeof(event));
1198                         event.michael_mic_failure.unicast =
1199                                 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1200                         wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1201                                 &event);
1202                         break;
1203                 }
1204                 break;
1205         case RTM_IFINFO:
1206                 ifm = (struct if_msghdr *) rtm;
1207                 if (ifm->ifm_index != drv->ifindex)
1208                         break;
1209                 if ((rtm->rtm_flags & RTF_UP) == 0) {
1210                         strlcpy(event.interface_status.ifname, drv->ifname,
1211                                 sizeof(event.interface_status.ifname));
1212                         event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1213                         wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1214                                    event.interface_status.ifname);
1215                         wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1216                 }
1217                 break;
1218         }
1219 }
1220
1221 static void
1222 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1223                               struct ieee80211req_scan_result *sr)
1224 {
1225         struct wpa_scan_res *result, **tmp;
1226         size_t extra_len;
1227         u8 *pos;
1228
1229         extra_len = 2 + sr->isr_ssid_len;
1230         extra_len += 2 + sr->isr_nrates;
1231         extra_len += 3; /* ERP IE */
1232         extra_len += sr->isr_ie_len;
1233
1234         result = os_zalloc(sizeof(*result) + extra_len);
1235         if (result == NULL)
1236                 return;
1237         os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1238         result->freq = sr->isr_freq;
1239         result->beacon_int = sr->isr_intval;
1240         result->caps = sr->isr_capinfo;
1241         result->qual = sr->isr_rssi;
1242         result->noise = sr->isr_noise;
1243
1244         pos = (u8 *)(result + 1);
1245
1246         *pos++ = WLAN_EID_SSID;
1247         *pos++ = sr->isr_ssid_len;
1248         os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1249         pos += sr->isr_ssid_len;
1250
1251         /*
1252          * Deal all rates as supported rate.
1253          * Because net80211 doesn't report extended supported rate or not.
1254          */
1255         *pos++ = WLAN_EID_SUPP_RATES;
1256         *pos++ = sr->isr_nrates;
1257         os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1258         pos += sr->isr_nrates;
1259
1260         *pos++ = WLAN_EID_ERP_INFO;
1261         *pos++ = 1;
1262         *pos++ = sr->isr_erp;
1263
1264         os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1265         pos += sr->isr_ie_len;
1266
1267         result->ie_len = pos - (u8 *)(result + 1);
1268
1269         tmp = os_realloc(res->res,
1270                          (res->num + 1) * sizeof(struct wpa_scan_res *));
1271         if (tmp == NULL) {
1272                 os_free(result);
1273                 return;
1274         }
1275         tmp[res->num++] = result;
1276         res->res = tmp;
1277 }
1278
1279 struct wpa_scan_results *
1280 wpa_driver_bsd_get_scan_results2(void *priv)
1281 {
1282         struct ieee80211req_scan_result *sr;
1283         struct wpa_scan_results *res;
1284         int len, rest;
1285         uint8_t buf[24*1024], *pos;
1286
1287         len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1288         if (len < 0)
1289                 return NULL;
1290
1291         res = os_zalloc(sizeof(*res));
1292         if (res == NULL)
1293                 return NULL;
1294
1295         pos = buf;
1296         rest = len;
1297         while (rest >= sizeof(struct ieee80211req_scan_result)) {
1298                 sr = (struct ieee80211req_scan_result *)pos;
1299                 wpa_driver_bsd_add_scan_entry(res, sr);
1300                 pos += sr->isr_len;
1301                 rest -= sr->isr_len;
1302         }
1303
1304         wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1305                    len, (unsigned long)res->num);
1306
1307         return res;
1308 }
1309
1310 static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1311 {
1312         /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1313         drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1314                 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1315                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1316                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1317         drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1318                 WPA_DRIVER_CAPA_ENC_WEP104 |
1319                 WPA_DRIVER_CAPA_ENC_TKIP |
1320                 WPA_DRIVER_CAPA_ENC_CCMP;
1321         drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1322                 WPA_DRIVER_AUTH_SHARED |
1323                 WPA_DRIVER_AUTH_LEAP;
1324
1325         //drv->capa.max_scan_ssids = info.max_scan_ssids;
1326         drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1327
1328         return 0;
1329 }
1330
1331 static void *
1332 wpa_driver_bsd_init(void *ctx, const char *ifname)
1333 {
1334 #define GETPARAM(drv, param, v) \
1335         (((v) = get80211param(drv, param)) != -1)
1336         struct bsd_driver_data *drv;
1337
1338         drv = os_zalloc(sizeof(*drv));
1339         if (drv == NULL)
1340                 return NULL;
1341         /*
1342          * NB: We require the interface name be mappable to an index.
1343          *     This implies we do not support having wpa_supplicant
1344          *     wait for an interface to appear.  This seems ok; that
1345          *     doesn't belong here; it's really the job of devd.
1346          */
1347         drv->ifindex = if_nametoindex(ifname);
1348         if (drv->ifindex == 0) {
1349                 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1350                            __func__, ifname);
1351                 goto fail1;
1352         }
1353         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1354         if (drv->sock < 0)
1355                 goto fail1;
1356         drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1357         if (drv->route < 0)
1358                 goto fail;
1359         eloop_register_read_sock(drv->route,
1360                 wpa_driver_bsd_event_receive, ctx, drv);
1361
1362         drv->ctx = ctx;
1363         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1364
1365         /* Down interface during setup. */
1366         if (bsd_ctrl_iface(drv, 0) < 0)
1367                 goto fail;
1368
1369         if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1370                 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1371                         __func__, strerror(errno));
1372                 goto fail;
1373         }
1374         if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1375                 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1376                         __func__, strerror(errno));
1377                 goto fail;
1378         }
1379         if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1380                 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1381                         __func__, strerror(errno));
1382                 goto fail;
1383         }
1384
1385         if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1386                 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1387                            __func__);
1388                 goto fail;
1389         }
1390
1391         if (wpa_driver_bsd_capa(drv))
1392                 goto fail;
1393
1394         return drv;
1395 fail:
1396         close(drv->sock);
1397 fail1:
1398         os_free(drv);
1399         return NULL;
1400 #undef GETPARAM
1401 }
1402
1403 static void
1404 wpa_driver_bsd_deinit(void *priv)
1405 {
1406         struct bsd_driver_data *drv = priv;
1407
1408         wpa_driver_bsd_set_wpa(drv, 0);
1409         eloop_unregister_read_sock(drv->route);
1410
1411         /* NB: mark interface down */
1412         bsd_ctrl_iface(drv, 0);
1413
1414         wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1415         if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1416                 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1417                         __func__);
1418
1419         if (drv->sock_xmit != NULL)
1420                 l2_packet_deinit(drv->sock_xmit);
1421         (void) close(drv->route);               /* ioctl socket */
1422         (void) close(drv->sock);                /* event socket */
1423         os_free(drv);
1424 }
1425
1426 static int
1427 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1428 {
1429         struct bsd_driver_data *drv = priv;
1430
1431         os_memcpy(capa, &drv->capa, sizeof(*capa));
1432         return 0;
1433 }
1434 #endif /* HOSTAPD */
1435
1436
1437 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1438         .name                   = "bsd",
1439         .desc                   = "BSD 802.11 support",
1440 #ifdef HOSTAPD
1441         .hapd_init              = bsd_init,
1442         .hapd_deinit            = bsd_deinit,
1443         .set_privacy            = bsd_set_privacy,
1444         .get_seqnum             = bsd_get_seqnum,
1445         .flush                  = bsd_flush,
1446         .set_generic_elem       = bsd_set_opt_ie,
1447         .read_sta_data          = bsd_read_sta_driver_data,
1448         .sta_disassoc           = bsd_sta_disassoc,
1449         .sta_deauth             = bsd_sta_deauth,
1450         .set_freq               = hostapd_bsd_set_freq,
1451 #else /* HOSTAPD */
1452         .init                   = wpa_driver_bsd_init,
1453         .deinit                 = wpa_driver_bsd_deinit,
1454         .get_bssid              = wpa_driver_bsd_get_bssid,
1455         .get_ssid               = wpa_driver_bsd_get_ssid,
1456         .set_countermeasures    = wpa_driver_bsd_set_countermeasures,
1457         .scan2                  = wpa_driver_bsd_scan,
1458         .get_scan_results2      = wpa_driver_bsd_get_scan_results2,
1459         .deauthenticate         = wpa_driver_bsd_deauthenticate,
1460         .disassociate           = wpa_driver_bsd_disassociate,
1461         .associate              = wpa_driver_bsd_associate,
1462         .get_capa               = wpa_driver_bsd_get_capa,
1463 #endif /* HOSTAPD */
1464         .set_key                = bsd_set_key,
1465         .set_ieee8021x          = bsd_set_ieee8021x,
1466         .hapd_set_ssid          = bsd_set_ssid,
1467         .hapd_get_ssid          = bsd_get_ssid,
1468         .hapd_send_eapol        = bsd_send_eapol,
1469         .sta_set_flags          = bsd_set_sta_authorized,
1470 };