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 /* Generic functions for hostapd and wpa_supplicant */
  52
  53 static int
  54 bsd_set80211var(int s, const char *ifname, int op, const void *arg, int arg_len)
  55 {
  56         struct ieee80211req ireq;
  57
  58         os_memset(&ireq, 0, sizeof(ireq));
  59         os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
  60         ireq.i_type = op;
  61         ireq.i_len = arg_len;
  62         ireq.i_data = (void *) arg;
  63
  64         if (ioctl(s, SIOCS80211, &ireq) < 0) {
  65                 fprintf(stderr, "ioctl[SIOCS80211, op %u, len %u]: %s\n",
  66                         op, arg_len, strerror(errno));
  67                 return -1;
  68         }
  69         return 0;
  70 }
  71
  72 static int
  73 bsd_get80211var(int s, const char *ifname, int op, void *arg, int arg_len)
  74 {
  75         struct ieee80211req ireq;
  76
  77         os_memset(&ireq, 0, sizeof(ireq));
  78         os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
  79         ireq.i_type = op;
  80         ireq.i_len = arg_len;
  81         ireq.i_data = arg;
  82
  83         if (ioctl(s, SIOCG80211, &ireq) < 0) {
  84                 fprintf(stderr, "ioctl[SIOCG80211, op %u, len %u]: %s\n",
  85                         op, arg_len, strerror(errno));
  86                 return -1;
  87         }
  88         return ireq.i_len;
  89 }
  90
  91 static int
  92 bsd_set80211param(int s, const char *ifname, int op, int arg)
  93 {
  94         struct ieee80211req ireq;
  95
  96         os_memset(&ireq, 0, sizeof(ireq));
  97         os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
  98         ireq.i_type = op;
  99         ireq.i_val = arg;
 100
 101         if (ioctl(s, SIOCS80211, &ireq) < 0) {
 102                 fprintf(stderr, "ioctl[SIOCS80211, op %u, arg 0x%x]: %s\n",
 103                         op, arg, strerror(errno));
 104                 return -1;
 105         }
 106         return 0;
 107 }
 108
 109 static int
 110 bsd_get_ssid(int s, const char *ifname, u8 *ssid)
 111 {
 112 #ifdef SIOCG80211NWID
 113         struct ieee80211_nwid nwid;
 114         struct ifreq ifr;
 115
 116         os_memset(&ifr, 0, sizeof(ifr));
 117         os_strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 118         ifr.ifr_data = (void *)&nwid;
 119         if (ioctl(s, SIOCG80211NWID, &ifr) < 0 ||
 120             nwid.i_len > IEEE80211_NWID_LEN)
 121                 return -1;
 122         os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
 123         return nwid.i_len;
 124 #else
 125         return bsd_get80211var(s, ifname, IEEE80211_IOC_SSID,
 126                 ssid, IEEE80211_NWID_LEN);
 127 #endif
 128 }
 129
 130 static int
 131 bsd_set_ssid(int s, const char *ifname, const u8 *ssid, size_t ssid_len)
 132 {
 133 #ifdef SIOCS80211NWID
 134         struct ieee80211_nwid nwid;
 135         struct ifreq ifr;
 136
 137         os_memcpy(nwid.i_nwid, ssid, ssid_len);
 138         nwid.i_len = ssid_len;
 139         os_memset(&ifr, 0, sizeof(ifr));
 140         os_strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 141         ifr.ifr_data = (void *)&nwid;
 142         return ioctl(s, SIOCS80211NWID, &ifr);
 143 #else
 144         return bsd_set80211var(s, ifname, IEEE80211_IOC_SSID, ssid, ssid_len);
 145 #endif
 146 }
 147
 148 static int
 149 bsd_get_if_media(int s, const char *ifname)
 150 {
 151         struct ifmediareq ifmr;
 152
 153         os_memset(&ifmr, 0, sizeof(ifmr));
 154         os_strlcpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name));
 155
 156         if (ioctl(s, SIOCGIFMEDIA, &ifmr) < 0) {
 157                 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
 158                            strerror(errno));
 159                 return -1;
 160         }
 161
 162         return ifmr.ifm_current;
 163 }
 164
 165 static int
 166 bsd_set_if_media(int s, const char *ifname, int media)
 167 {
 168         struct ifreq ifr;
 169
 170         os_memset(&ifr, 0, sizeof(ifr));
 171         os_strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 172         ifr.ifr_media = media;
 173
 174         if (ioctl(s, SIOCSIFMEDIA, &ifr) < 0) {
 175                 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
 176                            strerror(errno));
 177                 return -1;
 178         }
 179
 180         return 0;
 181 }
 182
 183 static int
 184 bsd_set_mediaopt(int s, const char *ifname, uint32_t mask, uint32_t mode)
 185 {
 186         int media = bsd_get_if_media(s, ifname);
 187
 188         if (media < 0)
 189                 return -1;
 190         media &= ~mask;
 191         media |= mode;
 192         if (bsd_set_if_media(s, ifname, media) < 0)
 193                 return -1;
 194         return 0;
 195 }
 196
 197 static int
 198 bsd_del_key(int s, const char *ifname, const u8 *addr, int key_idx)
 199 {
 200         struct ieee80211req_del_key wk;
 201
 202         os_memset(&wk, 0, sizeof(wk));
 203         if (addr == NULL) {
 204                 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
 205                 wk.idk_keyix = key_idx;
 206         } else {
 207                 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
 208                            MAC2STR(addr));
 209                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 210                 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
 211         }
 212
 213         return bsd_set80211var(s, ifname, IEEE80211_IOC_DELKEY, &wk,
 214                                sizeof(wk));
 215 }
 216
 217 static int
 218 bsd_send_mlme_param(int s, const char *ifname, const u8 op, const u16 reason,
 219                     const u8 *addr)
 220 {
 221         struct ieee80211req_mlme mlme;
 222
 223         os_memset(&mlme, 0, sizeof(mlme));
 224         mlme.im_op = op;
 225         mlme.im_reason = reason;
 226         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 227         return bsd_set80211var(s, ifname, IEEE80211_IOC_MLME, &mlme,
 228                                sizeof(mlme));
 229 }
 230
 231 static int
 232 bsd_ctrl_iface(int s, const char *ifname, int enable)
 233 {
 234         struct ifreq ifr;
 235
 236         os_memset(&ifr, 0, sizeof(ifr));
 237         os_strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 238
 239         if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0) {
 240                 perror("ioctl[SIOCGIFFLAGS]");
 241                 return -1;
 242         }
 243
 244         if (enable)
 245                 ifr.ifr_flags |= IFF_UP;
 246         else
 247                 ifr.ifr_flags &= ~IFF_UP;
 248
 249         if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0) {
 250                 perror("ioctl[SIOCSIFFLAGS]");
 251                 return -1;
 252         }
 253
 254         return 0;
 255 }
 256
 257 static int
 258 bsd_set_key(int s, const char *ifname, enum wpa_alg alg,
 259             const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
 260             size_t seq_len, const u8 *key, size_t key_len)
 261 {
 262         struct ieee80211req_key wk;
 263
 264         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
 265                    "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
 266                    set_tx, seq_len, key_len);
 267
 268         os_memset(&wk, 0, sizeof(wk));
 269         switch (alg) {
 270         case WPA_ALG_WEP:
 271                 wk.ik_type = IEEE80211_CIPHER_WEP;
 272                 break;
 273         case WPA_ALG_TKIP:
 274                 wk.ik_type = IEEE80211_CIPHER_TKIP;
 275                 break;
 276         case WPA_ALG_CCMP:
 277                 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
 278                 break;
 279         default:
 280                 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
 281                 return -1;
 282         }
 283
 284         wk.ik_flags = IEEE80211_KEY_RECV;
 285         if (set_tx)
 286                 wk.ik_flags |= IEEE80211_KEY_XMIT;
 287
 288         if (addr == NULL) {
 289                 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 290                 wk.ik_keyix = key_idx;
 291         } else {
 292                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 293                 /*
 294                  * Deduce whether group/global or unicast key by checking
 295                  * the address (yech).  Note also that we can only mark global
 296                  * keys default; doing this for a unicast key is an error.
 297                  */
 298                 if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
 299                               IEEE80211_ADDR_LEN) == 0) {
 300                         wk.ik_flags |= IEEE80211_KEY_GROUP;
 301                         wk.ik_keyix = key_idx;
 302                 } else {
 303                         wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
 304                                 key_idx;
 305                 }
 306         }
 307         if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
 308                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 309         wk.ik_keylen = key_len;
 310         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
 311         os_memcpy(wk.ik_keydata, key, key_len);
 312
 313         return bsd_set80211var(s, ifname, IEEE80211_IOC_WPAKEY, &wk,
 314                                sizeof(wk));
 315 }
 316
 317 static int
 318 bsd_configure_wpa(int s, const char *ifname, struct wpa_bss_params *params)
 319 {
 320         static const char *ciphernames[] =
 321                 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
 322         int v;
 323
 324         switch (params->wpa_group) {
 325         case WPA_CIPHER_CCMP:
 326                 v = IEEE80211_CIPHER_AES_CCM;
 327                 break;
 328         case WPA_CIPHER_TKIP:
 329                 v = IEEE80211_CIPHER_TKIP;
 330                 break;
 331         case WPA_CIPHER_WEP104:
 332                 v = IEEE80211_CIPHER_WEP;
 333                 break;
 334         case WPA_CIPHER_WEP40:
 335                 v = IEEE80211_CIPHER_WEP;
 336                 break;
 337         case WPA_CIPHER_NONE:
 338                 v = IEEE80211_CIPHER_NONE;
 339                 break;
 340         default:
 341                 printf("Unknown group key cipher %u\n",
 342                         params->wpa_group);
 343                 return -1;
 344         }
 345         wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
 346                    __func__, ciphernames[v], v);
 347         if (bsd_set80211param(s, ifname, IEEE80211_IOC_MCASTCIPHER, v)) {
 348                 printf("Unable to set group key cipher to %u (%s)\n",
 349                         v, ciphernames[v]);
 350                 return -1;
 351         }
 352         if (v == IEEE80211_CIPHER_WEP) {
 353                 /* key length is done only for specific ciphers */
 354                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 355                 if (bsd_set80211param(s, ifname, IEEE80211_IOC_MCASTKEYLEN,
 356                                       v)) {
 357                         printf("Unable to set group key length to %u\n", v);
 358                         return -1;
 359                 }
 360         }
 361
 362         v = 0;
 363         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 364                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 365         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 366                 v |= 1<<IEEE80211_CIPHER_TKIP;
 367         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 368                 v |= 1<<IEEE80211_CIPHER_NONE;
 369         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 370         if (bsd_set80211param(s, ifname, IEEE80211_IOC_UCASTCIPHERS, v)) {
 371                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 372                 return -1;
 373         }
 374
 375         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 376                    __func__, params->wpa_key_mgmt);
 377         if (bsd_set80211param(s, ifname, IEEE80211_IOC_KEYMGTALGS, params->wpa_key_mgmt))
 378         {
 379                 printf("Unable to set key management algorithms to 0x%x\n",
 380                         params->wpa_key_mgmt);
 381                 return -1;
 382         }
 383
 384         v = 0;
 385         if (params->rsn_preauth)
 386                 v |= BIT(0);
 387         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 388                    __func__, params->rsn_preauth);
 389         if (bsd_set80211param(s, ifname, IEEE80211_IOC_RSNCAPS, v)) {
 390                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 391                 return -1;
 392         }
 393
 394         wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
 395         if (bsd_set80211param(s, ifname, IEEE80211_IOC_WPA, params->wpa)) {
 396                 printf("Unable to set WPA to %u\n", params->wpa);
 397                 return -1;
 398         }
 399         return 0;
 400 }
 401
 402 static int
 403 bsd_set_ieee8021x(int s, const char *ifname, struct wpa_bss_params *params)
 404 {
 405         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 406
 407         if (!params->enabled) {
 408                 /* XXX restore state */
 409                 return bsd_set80211param(s, ifname, IEEE80211_IOC_AUTHMODE,
 410                         IEEE80211_AUTH_AUTO);
 411         }
 412         if (!params->wpa && !params->ieee802_1x) {
 413                 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
 414                            __func__);
 415                 return -1;
 416         }
 417         if (params->wpa && bsd_configure_wpa(s, ifname, params) != 0) {
 418                 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
 419                            __func__);
 420                 return -1;
 421         }
 422         if (bsd_set80211param(s, ifname, IEEE80211_IOC_AUTHMODE,
 423                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 424                 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
 425                            __func__);
 426                 return -1;
 427         }
 428         return bsd_ctrl_iface(s, ifname, 1);
 429 }
 430
 431 static int
 432 bsd_set_sta_authorized(int s, const char *ifname, const u8 *addr,
 433                        int total_flags, int flags_or, int flags_and)
 434 {
 435         int authorized = -1;
 436
 437         /* For now, only support setting Authorized flag */
 438         if (flags_or & WPA_STA_AUTHORIZED)
 439                 authorized = 1;
 440         if (!(flags_and & WPA_STA_AUTHORIZED))
 441                 authorized = 0;
 442
 443         if (authorized < 0)
 444                 return 0;
 445
 446         return bsd_send_mlme_param(s, ifname, authorized ?
 447                                    IEEE80211_MLME_AUTHORIZE :
 448                                    IEEE80211_MLME_UNAUTHORIZE, 0, addr);
 449 }
 450
 451 static void
 452 bsd_new_sta(int s, const char *ifname, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
 453 {
 454         struct ieee80211req_wpaie ie;
 455         int ielen = 0;
 456         u8 *iebuf = NULL;
 457
 458         /*
 459          * Fetch and validate any negotiated WPA/RSN parameters.
 460          */
 461         memset(&ie, 0, sizeof(ie));
 462         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 463         if (bsd_get80211var(s, ifname, IEEE80211_IOC_WPAIE,
 464                             &ie, sizeof(ie)) < 0) {
 465                 printf("Failed to get WPA/RSN information element.\n");
 466                 goto no_ie;
 467         }
 468         iebuf = ie.wpa_ie;
 469         ielen = ie.wpa_ie[1];
 470         if (ielen == 0)
 471                 iebuf = NULL;
 472         else
 473                 ielen += 2;
 474
 475 no_ie:
 476         drv_event_assoc(ctx, addr, iebuf, ielen);
 477 }
 478
 479 static int
 480 bsd_send_eapol(struct l2_packet_data *sock_xmit, const u8 *addr,
 481                const u8 *data, size_t data_len)
 482 {
 483         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
 484
 485         return l2_packet_send(sock_xmit, addr, ETH_P_EAPOL, data, data_len);
 486 }
 487
 488 static int
 489 bsd_set_freq(int s, const char *ifname, u16 channel)
 490 {
 491 #ifdef SIOCS80211CHANNEL
 492         struct ieee80211chanreq creq;
 493         u32 mode;
 494
 495         if (channel < 14)
 496                 mode = IFM_IEEE80211_11G;
 497         else if (channel == 14)
 498                 mode = IFM_IEEE80211_11B;
 499         else
 500                 mode = IFM_IEEE80211_11A;
 501         if (bsd_set_mediaopt(s, ifname, IFM_MMASK, mode) < 0) {
 502                 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
 503                            __func__);
 504                 return -1;
 505         }
 506
 507         os_memset(&creq, 0, sizeof(creq));
 508         os_strlcpy(creq.i_name, ifname, sizeof(creq.i_name));
 509         creq.i_channel = channel;
 510         return ioctl(s, SIOCS80211CHANNEL, &creq);
 511 #else
 512         wpa_printf(MSG_ERROR, "bsd_set_freq: SIOCS80211CHANNEL not "
 513                    "defined");
 514         return -1;
 515 #endif
 516 }
 517
 518
 519 #ifdef HOSTAPD
 520
 521 /*
 522  * Avoid conflicts with hostapd definitions by undefining couple of defines
 523  * from net80211 header files.
 524  */
 525 #undef RSN_VERSION
 526 #undef WPA_VERSION
 527 #undef WPA_OUI_TYPE
 528
 529 struct bsd_driver_data {
 530         struct hostapd_data *hapd;              /* back pointer */
 531
 532         char    ifname[IFNAMSIZ + 1];
 533         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
 534         int     sock;                           /* socket for ioctl() use */
 535         int     route;                          /* socket for wireless events */
 536 };
 537
 538 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 539                           int reason_code);
 540
 541 static int
 542 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
 543 {
 544         return bsd_get80211var(drv->sock, drv->ifname, op, arg, arg_len);
 545 }
 546
 547 static int
 548 set80211param(struct bsd_driver_data *drv, int op, int arg)
 549 {
 550         return bsd_set80211param(drv->sock, drv->ifname, op, arg);
 551 }
 552
 553 static const char *
 554 ether_sprintf(const u8 *addr)
 555 {
 556         static char buf[sizeof(MACSTR)];
 557
 558         if (addr != NULL)
 559                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 560         else
 561                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 562         return buf;
 563 }
 564
 565 static int
 566 hostapd_bsd_ctrl_iface(struct bsd_driver_data *drv, int enable)
 567 {
 568         return bsd_ctrl_iface(drv->sock, drv->ifname, enable);
 569 }
 570
 571 static int
 572 bsd_set_privacy(const char *ifname, void *priv, int enabled)
 573 {
 574         struct bsd_driver_data *drv = priv;
 575
 576         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 577
 578         return set80211param(drv, IEEE80211_IOC_PRIVACY, enabled);
 579 }
 580
 581 static int
 582 hostapd_bsd_sta_set_flags(void *priv, const u8 *addr, int total_flags,
 583                           int flags_or, int flags_and)
 584 {
 585         struct bsd_driver_data *drv = priv;
 586
 587         return bsd_set_sta_authorized(drv->sock, drv->ifname, addr,
 588                                       total_flags, flags_or, flags_and);
 589 }
 590
 591 static int
 592 hostapd_bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 593             const u8 *addr, int key_idx, int set_tx, const u8 *seq,
 594             size_t seq_len, const u8 *key, size_t key_len)
 595 {
 596         struct bsd_driver_data *drv = priv;
 597
 598         if (alg == WPA_ALG_NONE)
 599                 return bsd_del_key(drv->sock, drv->ifname, addr, key_idx);
 600
 601         return bsd_set_key(drv->sock, drv->ifname, alg, addr, key_idx,
 602                            set_tx, seq, seq_len, key, key_len);
 603 }
 604
 605
 606 static int
 607 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 608                u8 *seq)
 609 {
 610         struct bsd_driver_data *drv = priv;
 611         struct ieee80211req_key wk;
 612
 613         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 614                    __func__, ether_sprintf(addr), idx);
 615
 616         memset(&wk, 0, sizeof(wk));
 617         if (addr == NULL)
 618                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 619         else
 620                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 621         wk.ik_keyix = idx;
 622
 623         if (get80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
 624                 printf("Failed to get encryption.\n");
 625                 return -1;
 626         }
 627
 628 #ifdef WORDS_BIGENDIAN
 629         {
 630                 /*
 631                  * wk.ik_keytsc is in host byte order (big endian), need to
 632                  * swap it to match with the byte order used in WPA.
 633                  */
 634                 int i;
 635                 u8 tmp[WPA_KEY_RSC_LEN];
 636                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 637                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 638                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 639                 }
 640         }
 641 #else /* WORDS_BIGENDIAN */
 642         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 643 #endif /* WORDS_BIGENDIAN */
 644         return 0;
 645 }
 646
 647
 648 static int
 649 bsd_flush(void *priv)
 650 {
 651         u8 allsta[IEEE80211_ADDR_LEN];
 652
 653         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 654         return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
 655 }
 656
 657
 658 static int
 659 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 660                          const u8 *addr)
 661 {
 662         struct bsd_driver_data *drv = priv;
 663         struct ieee80211req_sta_stats stats;
 664
 665         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 666         if (get80211var(drv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats)) > 0) {
 667                 /* XXX? do packets counts include non-data frames? */
 668                 data->rx_packets = stats.is_stats.ns_rx_data;
 669                 data->rx_bytes = stats.is_stats.ns_rx_bytes;
 670                 data->tx_packets = stats.is_stats.ns_tx_data;
 671                 data->tx_bytes = stats.is_stats.ns_tx_bytes;
 672         }
 673         return 0;
 674 }
 675
 676 static int
 677 bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
 678 {
 679         /*
 680          * Do nothing; we setup parameters at startup that define the
 681          * contents of the beacon information element.
 682          */
 683         return 0;
 684 }
 685
 686 static int
 687 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
 688 {
 689         struct bsd_driver_data *drv = priv;
 690
 691         return bsd_send_mlme_param(drv->sock, drv->ifname,
 692                                    IEEE80211_MLME_DEAUTH, reason_code, addr);
 693 }
 694
 695 static int
 696 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 697                  int reason_code)
 698 {
 699         struct bsd_driver_data *drv = priv;
 700
 701         return bsd_send_mlme_param(drv->sock, drv->ifname,
 702                                    IEEE80211_MLME_DISASSOC, reason_code, addr);
 703 }
 704
 705 static void
 706 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
 707 {
 708         struct bsd_driver_data *drv = ctx;
 709         char buf[2048];
 710         struct if_announcemsghdr *ifan;
 711         struct rt_msghdr *rtm;
 712         struct ieee80211_michael_event *mic;
 713         struct ieee80211_join_event *join;
 714         struct ieee80211_leave_event *leave;
 715         int n;
 716         union wpa_event_data data;
 717
 718         n = read(sock, buf, sizeof(buf));
 719         if (n < 0) {
 720                 if (errno != EINTR && errno != EAGAIN)
 721                         perror("read(PF_ROUTE)");
 722                 return;
 723         }
 724
 725         rtm = (struct rt_msghdr *) buf;
 726         if (rtm->rtm_version != RTM_VERSION) {
 727                 wpa_printf(MSG_DEBUG, "Routing message version %d not "
 728                         "understood\n", rtm->rtm_version);
 729                 return;
 730         }
 731         ifan = (struct if_announcemsghdr *) rtm;
 732         switch (rtm->rtm_type) {
 733         case RTM_IEEE80211:
 734                 switch (ifan->ifan_what) {
 735                 case RTM_IEEE80211_ASSOC:
 736                 case RTM_IEEE80211_REASSOC:
 737                 case RTM_IEEE80211_DISASSOC:
 738                 case RTM_IEEE80211_SCAN:
 739                         break;
 740                 case RTM_IEEE80211_LEAVE:
 741                         leave = (struct ieee80211_leave_event *) &ifan[1];
 742                         drv_event_disassoc(drv->hapd, leave->iev_addr);
 743                         break;
 744                 case RTM_IEEE80211_JOIN:
 745 #ifdef RTM_IEEE80211_REJOIN
 746                 case RTM_IEEE80211_REJOIN:
 747 #endif
 748                         join = (struct ieee80211_join_event *) &ifan[1];
 749                         bsd_new_sta(drv->sock, drv->ifname, drv->hapd,
 750                                     join->iev_addr);
 751                         break;
 752                 case RTM_IEEE80211_REPLAY:
 753                         /* ignore */
 754                         break;
 755                 case RTM_IEEE80211_MICHAEL:
 756                         mic = (struct ieee80211_michael_event *) &ifan[1];
 757                         wpa_printf(MSG_DEBUG,
 758                                 "Michael MIC failure wireless event: "
 759                                 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
 760                                 MAC2STR(mic->iev_src));
 761                         os_memset(&data, 0, sizeof(data));
 762                         data.michael_mic_failure.unicast = 1;
 763                         data.michael_mic_failure.src = mic->iev_src;
 764                         wpa_supplicant_event(drv->hapd,
 765                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 766                         break;
 767                 }
 768                 break;
 769         }
 770 }
 771
 772 static int
 773 hostapd_bsd_send_eapol(void *priv, const u8 *addr, const u8 *data,
 774                        size_t data_len, int encrypt, const u8 *own_addr)
 775 {
 776         struct bsd_driver_data *drv = priv;
 777         return bsd_send_eapol(drv->sock_xmit, addr, data, data_len);
 778 }
 779
 780 static void
 781 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
 782 {
 783         struct bsd_driver_data *drv = ctx;
 784         drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
 785 }
 786
 787 static int
 788 hostapd_bsd_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
 789 {
 790         struct bsd_driver_data *drv = priv;
 791         int ssid_len;
 792
 793         ssid_len = bsd_get_ssid(drv->sock, drv->ifname, buf);
 794         wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, ssid_len, buf);
 795
 796         return ssid_len;
 797 }
 798
 799 static int
 800 hostapd_bsd_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
 801 {
 802         struct bsd_driver_data *drv = priv;
 803
 804         wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, len, buf);
 805
 806         return bsd_set_ssid(drv->sock, drv->ifname, buf, len);
 807 }
 808
 809 static int
 810 hostapd_bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 811 {
 812         struct bsd_driver_data *drv = priv;
 813
 814         return bsd_set_ieee8021x(drv->sock, drv->ifname, params);
 815 }
 816
 817 static int
 818 hostapd_bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
 819 {
 820         struct bsd_driver_data *drv = priv;
 821
 822         return bsd_set_freq(drv->sock, drv->ifname, freq->channel);
 823 }
 824
 825 static void *
 826 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
 827 {
 828         struct bsd_driver_data *drv;
 829
 830         drv = os_zalloc(sizeof(struct bsd_driver_data));
 831         if (drv == NULL) {
 832                 printf("Could not allocate memory for bsd driver data\n");
 833                 goto bad;
 834         }
 835
 836         drv->hapd = hapd;
 837         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
 838         if (drv->sock < 0) {
 839                 perror("socket[PF_INET,SOCK_DGRAM]");
 840                 goto bad;
 841         }
 842         os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
 843
 844         drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
 845                                         handle_read, drv, 0);
 846         if (drv->sock_xmit == NULL)
 847                 goto bad;
 848         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
 849                 goto bad;
 850
 851         /* mark down during setup */
 852         if (hostapd_bsd_ctrl_iface(drv, 0) < 0)
 853                 goto bad;
 854
 855         drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
 856         if (drv->route < 0) {
 857                 perror("socket(PF_ROUTE,SOCK_RAW)");
 858                 goto bad;
 859         }
 860         eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
 861                                  NULL);
 862
 863         if (bsd_set_mediaopt(drv->sock, drv->ifname, IFM_OMASK,
 864                              IFM_IEEE80211_HOSTAP) < 0) {
 865                 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
 866                            __func__);
 867                 goto bad;
 868         }
 869
 870         return drv;
 871 bad:
 872         if (drv->sock_xmit != NULL)
 873                 l2_packet_deinit(drv->sock_xmit);
 874         if (drv->sock >= 0)
 875                 close(drv->sock);
 876         if (drv != NULL)
 877                 os_free(drv);
 878         return NULL;
 879 }
 880
 881
 882 static void
 883 bsd_deinit(void *priv)
 884 {
 885         struct bsd_driver_data *drv = priv;
 886
 887         if (drv->route >= 0) {
 888                 eloop_unregister_read_sock(drv->route);
 889                 close(drv->route);
 890         }
 891         hostapd_bsd_ctrl_iface(drv, 0);
 892         if (drv->sock >= 0)
 893                 close(drv->sock);
 894         if (drv->sock_xmit != NULL)
 895                 l2_packet_deinit(drv->sock_xmit);
 896         os_free(drv);
 897 }
 898
 899 const struct wpa_driver_ops wpa_driver_bsd_ops = {
 900         .name                   = "bsd",
 901         .hapd_init              = bsd_init,
 902         .hapd_deinit            = bsd_deinit,
 903         .set_ieee8021x          = hostapd_bsd_set_ieee8021x,
 904         .set_privacy            = bsd_set_privacy,
 905         .set_key                = hostapd_bsd_set_key,
 906         .get_seqnum             = bsd_get_seqnum,
 907         .flush                  = bsd_flush,
 908         .set_generic_elem       = bsd_set_opt_ie,
 909         .sta_set_flags          = hostapd_bsd_sta_set_flags,
 910         .read_sta_data          = bsd_read_sta_driver_data,
 911         .hapd_send_eapol        = hostapd_bsd_send_eapol,
 912         .sta_disassoc           = bsd_sta_disassoc,
 913         .sta_deauth             = bsd_sta_deauth,
 914         .hapd_set_ssid          = hostapd_bsd_set_ssid,
 915         .hapd_get_ssid          = hostapd_bsd_get_ssid,
 916         .set_freq               = hostapd_bsd_set_freq,
 917 };
 918
 919 #else /* HOSTAPD */
 920
 921 struct wpa_driver_bsd_data {
 922         int     sock;                   /* open socket for 802.11 ioctls */
 923         struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
 924         int     route;                  /* routing socket for events */
 925         char    ifname[IFNAMSIZ+1];     /* interface name */
 926         unsigned int ifindex;           /* interface index */
 927         void    *ctx;
 928         struct wpa_driver_capa capa;    /* driver capability */
 929         int     is_ap;                  /* Access point mode */
 930         int     prev_roaming;           /* roaming state to restore on deinit */
 931         int     prev_privacy;           /* privacy state to restore on deinit */
 932         int     prev_wpa;               /* wpa state to restore on deinit */
 933 };
 934
 935 static int
 936 set80211var(struct wpa_driver_bsd_data *drv, int op, const void *arg, int arg_len)
 937 {
 938         return bsd_set80211var(drv->sock, drv->ifname, op, arg, arg_len);
 939 }
 940
 941 static int
 942 get80211var(struct wpa_driver_bsd_data *drv, int op, void *arg, int arg_len)
 943 {
 944         return bsd_get80211var(drv->sock, drv->ifname, op, arg, arg_len);
 945 }
 946
 947 static int
 948 set80211param(struct wpa_driver_bsd_data *drv, int op, int arg)
 949 {
 950         return bsd_set80211param(drv->sock, drv->ifname, op, arg);
 951 }
 952
 953 static int
 954 get80211param(struct wpa_driver_bsd_data *drv, int op)
 955 {
 956         struct ieee80211req ireq;
 957
 958         os_memset(&ireq, 0, sizeof(ireq));
 959         os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
 960         ireq.i_type = op;
 961
 962         if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
 963                 fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
 964                         op, strerror(errno));
 965                 return -1;
 966         }
 967         return ireq.i_val;
 968 }
 969
 970 static int
 971 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
 972 {
 973         struct wpa_driver_bsd_data *drv = priv;
 974 #ifdef SIOCG80211BSSID
 975         struct ieee80211_bssid bs;
 976
 977         os_strncpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
 978         if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
 979                 return -1;
 980         os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
 981         return 0;
 982 #else
 983         return get80211var(drv, IEEE80211_IOC_BSSID,
 984                 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
 985 #endif
 986 }
 987
 988 #if 0
 989 static int
 990 wpa_driver_bsd_set_bssid(void *priv, const char *bssid)
 991 {
 992         struct wpa_driver_bsd_data *drv = priv;
 993
 994         return set80211var(drv, IEEE80211_IOC_BSSID,
 995                 bssid, IEEE80211_ADDR_LEN);
 996 }
 997 #endif
 998
 999 static int
1000 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
1001 {
1002         struct wpa_driver_bsd_data *drv = priv;
1003
1004         return bsd_get_ssid(drv->sock, drv->ifname, ssid);
1005 }
1006
1007 static int
1008 wpa_driver_bsd_set_ssid(void *priv, const u8 *ssid,
1009                              size_t ssid_len)
1010 {
1011         struct wpa_driver_bsd_data *drv = priv;
1012
1013         return bsd_set_ssid(drv->sock, drv->ifname, ssid, ssid_len);
1014 }
1015
1016 static int
1017 wpa_driver_bsd_set_wpa_ie(struct wpa_driver_bsd_data *drv,
1018         const u8 *wpa_ie, size_t wpa_ie_len)
1019 {
1020 #ifdef IEEE80211_IOC_APPIE
1021         return set80211var(drv, IEEE80211_IOC_APPIE, wpa_ie, wpa_ie_len);
1022 #else /* IEEE80211_IOC_APPIE */
1023         return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
1024 #endif /* IEEE80211_IOC_APPIE */
1025 }
1026
1027 static int
1028 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
1029 {
1030         struct wpa_driver_bsd_data *drv = priv;
1031         int ret = 0;
1032
1033         wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
1034                 __FUNCTION__, wpa, privacy);
1035
1036         if (!wpa && wpa_driver_bsd_set_wpa_ie(drv, NULL, 0) < 0)
1037                 ret = -1;
1038         if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1039                 ret = -1;
1040         if (set80211param(drv, IEEE80211_IOC_WPA, wpa) < 0)
1041                 ret = -1;
1042
1043         return ret;
1044 }
1045
1046 static int
1047 wpa_driver_bsd_set_wpa(void *priv, int enabled)
1048 {
1049         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1050
1051         return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
1052 }
1053
1054 static int
1055 wpa_driver_bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
1056                        const unsigned char *addr, int key_idx, int set_tx,
1057                        const u8 *seq, size_t seq_len,
1058                        const u8 *key, size_t key_len)
1059 {
1060         struct wpa_driver_bsd_data *drv = priv;
1061
1062         if (alg == WPA_ALG_NONE) {
1063                 if (addr == NULL ||
1064                     os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1065                               IEEE80211_ADDR_LEN) == 0)
1066                         return bsd_del_key(drv->sock, drv->ifname, NULL,
1067                                            key_idx);
1068                 else
1069                         return bsd_del_key(drv->sock, drv->ifname, addr,
1070                                            key_idx);
1071         }
1072
1073         return bsd_set_key(drv->sock, drv->ifname, alg, addr, key_idx, set_tx,
1074                            seq, seq_len, key, key_len);
1075 }
1076
1077 static int
1078 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
1079 {
1080         struct wpa_driver_bsd_data *drv = priv;
1081
1082         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1083         return set80211param(drv, IEEE80211_IOC_COUNTERMEASURES, enabled);
1084 }
1085
1086
1087 static int
1088 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
1089 {
1090         struct wpa_driver_bsd_data *drv = priv;
1091
1092         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1093         return set80211param(drv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1094 }
1095
1096 static int
1097 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
1098 {
1099         struct wpa_driver_bsd_data *drv = priv;
1100
1101         return bsd_send_mlme_param(drv->sock, drv->ifname,
1102                                    IEEE80211_MLME_DEAUTH, reason_code, addr);
1103 }
1104
1105 static int
1106 wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
1107 {
1108         struct wpa_driver_bsd_data *drv = priv;
1109
1110         return bsd_send_mlme_param(drv->sock, drv->ifname,
1111                                    IEEE80211_MLME_DISASSOC, reason_code, addr);
1112 }
1113
1114 static int
1115 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1116 {
1117         struct wpa_driver_bsd_data *drv = priv;
1118         int authmode;
1119
1120         if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1121             (auth_alg & WPA_AUTH_ALG_SHARED))
1122                 authmode = IEEE80211_AUTH_AUTO;
1123         else if (auth_alg & WPA_AUTH_ALG_SHARED)
1124                 authmode = IEEE80211_AUTH_SHARED;
1125         else
1126                 authmode = IEEE80211_AUTH_OPEN;
1127
1128         return set80211param(drv, IEEE80211_IOC_AUTHMODE, authmode);
1129 }
1130
1131 static void
1132 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1133 {
1134         struct wpa_driver_bsd_data *drv = ctx;
1135
1136         drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
1137 }
1138
1139 static int
1140 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1141 {
1142         struct wpa_driver_bsd_data *drv = priv;
1143         struct ieee80211req_mlme mlme;
1144         u32 mode;
1145         u16 channel;
1146         int privacy;
1147         int ret = 0;
1148
1149         wpa_printf(MSG_DEBUG,
1150                 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1151                 , __func__
1152                    , (unsigned int) params->ssid_len, params->ssid
1153                 , (unsigned int) params->wpa_ie_len
1154                 , params->pairwise_suite
1155                 , params->group_suite
1156                 , params->key_mgmt_suite
1157         );
1158
1159         switch (params->mode) {
1160         case IEEE80211_MODE_INFRA:
1161                 mode = 0 /* STA */;
1162                 break;
1163         case IEEE80211_MODE_IBSS:
1164                 mode = IFM_IEEE80211_IBSS;
1165                 break;
1166         case IEEE80211_MODE_AP:
1167                 mode = IFM_IEEE80211_HOSTAP;
1168                 break;
1169         default:
1170                 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1171                 return -1;
1172         }
1173         if (bsd_set_mediaopt(drv->sock, drv->ifname, IFM_OMASK, mode) < 0) {
1174                 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1175                            __func__);
1176                 return -1;
1177         }
1178
1179         if (params->mode == IEEE80211_MODE_AP) {
1180                 if (params->freq >= 2412 && params->freq <= 2472)
1181                         channel = (params->freq - 2407) / 5;
1182                 else if (params->freq == 2484)
1183                         channel = 14;
1184                 else if ((params->freq >= 5180 && params->freq <= 5240) ||
1185                          (params->freq >= 5745 && params->freq <= 5825))
1186                         channel = (params->freq - 5000) / 5;
1187                 else
1188                         channel = 0;
1189                 if (bsd_set_freq(drv->sock, drv->ifname, channel) < 0)
1190                         return -1;
1191
1192                 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1193                                                 handle_read, drv, 0);
1194                 if (drv->sock_xmit == NULL)
1195                         return -1;
1196                 drv->is_ap = 1;
1197                 return 0;
1198         }
1199
1200         if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1201             < 0)
1202                 ret = -1;
1203         if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1204                 ret = -1;
1205         /* XXX error handling is wrong but unclear what to do... */
1206         if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1207                 return -1;
1208
1209         privacy = !(params->pairwise_suite == CIPHER_NONE &&
1210             params->group_suite == CIPHER_NONE &&
1211             params->key_mgmt_suite == KEY_MGMT_NONE &&
1212             params->wpa_ie_len == 0);
1213         wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1214
1215         if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1216                 return -1;
1217
1218         if (params->wpa_ie_len &&
1219             set80211param(drv, IEEE80211_IOC_WPA,
1220                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1221                 return -1;
1222
1223         os_memset(&mlme, 0, sizeof(mlme));
1224         mlme.im_op = IEEE80211_MLME_ASSOC;
1225         if (params->ssid != NULL)
1226                 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1227         mlme.im_ssid_len = params->ssid_len;
1228         if (params->bssid != NULL)
1229                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1230         if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1231                 return -1;
1232         return ret;
1233 }
1234
1235 static int
1236 wpa_driver_bsd_ctrl_iface(struct wpa_driver_bsd_data *drv, int enable)
1237 {
1238         return bsd_ctrl_iface(drv->sock, drv->ifname, enable);
1239 }
1240
1241 static int
1242 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1243 {
1244         struct wpa_driver_bsd_data *drv = priv;
1245         const u8 *ssid = params->ssids[0].ssid;
1246         size_t ssid_len = params->ssids[0].ssid_len;
1247
1248         if (set80211param(drv, IEEE80211_IOC_ROAMING,
1249                           IEEE80211_ROAMING_MANUAL) < 0) {
1250                 wpa_printf(MSG_ERROR, "%s: failed to set "
1251                            "wpa_supplicant-based roaming: %s", __func__,
1252                            strerror(errno));
1253                 return -1;
1254         }
1255
1256         if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1257                 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1258                            strerror(errno));
1259                 return -1;
1260         }
1261
1262         /* NB: interface must be marked UP to do a scan */
1263         if (wpa_driver_bsd_ctrl_iface(drv, 1) < 0)
1264                 return -1;
1265
1266         /* set desired ssid before scan */
1267         if (wpa_driver_bsd_set_ssid(drv, ssid, ssid_len) < 0)
1268                 return -1;
1269
1270         /* NB: net80211 delivers a scan complete event so no need to poll */
1271         return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1272 }
1273
1274 static void
1275 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1276 {
1277         struct wpa_driver_bsd_data *drv = sock_ctx;
1278         char buf[2048];
1279         struct if_announcemsghdr *ifan;
1280         struct if_msghdr *ifm;
1281         struct rt_msghdr *rtm;
1282         union wpa_event_data event;
1283         struct ieee80211_michael_event *mic;
1284         struct ieee80211_leave_event *leave;
1285         struct ieee80211_join_event *join;
1286         int n;
1287
1288         n = read(sock, buf, sizeof(buf));
1289         if (n < 0) {
1290                 if (errno != EINTR && errno != EAGAIN)
1291                         perror("read(PF_ROUTE)");
1292                 return;
1293         }
1294
1295         rtm = (struct rt_msghdr *) buf;
1296         if (rtm->rtm_version != RTM_VERSION) {
1297                 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1298                         "understood\n", rtm->rtm_version);
1299                 return;
1300         }
1301         os_memset(&event, 0, sizeof(event));
1302         switch (rtm->rtm_type) {
1303         case RTM_IFANNOUNCE:
1304                 ifan = (struct if_announcemsghdr *) rtm;
1305                 if (ifan->ifan_index != drv->ifindex)
1306                         break;
1307                 strlcpy(event.interface_status.ifname, drv->ifname,
1308                         sizeof(event.interface_status.ifname));
1309                 switch (ifan->ifan_what) {
1310                 case IFAN_DEPARTURE:
1311                         event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1312                 default:
1313                         return;
1314                 }
1315                 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1316                            event.interface_status.ifname,
1317                            ifan->ifan_what == IFAN_DEPARTURE ?
1318                                 "removed" : "added");
1319                 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1320                 break;
1321         case RTM_IEEE80211:
1322                 ifan = (struct if_announcemsghdr *) rtm;
1323                 if (ifan->ifan_index != drv->ifindex)
1324                         break;
1325                 switch (ifan->ifan_what) {
1326                 case RTM_IEEE80211_ASSOC:
1327                 case RTM_IEEE80211_REASSOC:
1328                         if (drv->is_ap)
1329                                 break;
1330                         wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1331                         break;
1332                 case RTM_IEEE80211_DISASSOC:
1333                         if (drv->is_ap)
1334                                 break;
1335                         wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1336                         break;
1337                 case RTM_IEEE80211_SCAN:
1338                         if (drv->is_ap)
1339                                 break;
1340                         wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1341                         break;
1342                 case RTM_IEEE80211_LEAVE:
1343                         leave = (struct ieee80211_leave_event *) &ifan[1];
1344                         drv_event_disassoc(ctx, leave->iev_addr);
1345                         break;
1346                 case RTM_IEEE80211_JOIN:
1347 #ifdef RTM_IEEE80211_REJOIN
1348                 case RTM_IEEE80211_REJOIN:
1349 #endif
1350                         join = (struct ieee80211_join_event *) &ifan[1];
1351                         bsd_new_sta(drv->sock, drv->ifname, ctx,
1352                                     join->iev_addr);
1353                         break;
1354                 case RTM_IEEE80211_REPLAY:
1355                         /* ignore */
1356                         break;
1357                 case RTM_IEEE80211_MICHAEL:
1358                         mic = (struct ieee80211_michael_event *) &ifan[1];
1359                         wpa_printf(MSG_DEBUG,
1360                                 "Michael MIC failure wireless event: "
1361                                 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1362                                 MAC2STR(mic->iev_src));
1363
1364                         os_memset(&event, 0, sizeof(event));
1365                         event.michael_mic_failure.unicast =
1366                                 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1367                         wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1368                                 &event);
1369                         break;
1370                 }
1371                 break;
1372         case RTM_IFINFO:
1373                 ifm = (struct if_msghdr *) rtm;
1374                 if (ifm->ifm_index != drv->ifindex)
1375                         break;
1376                 if ((rtm->rtm_flags & RTF_UP) == 0) {
1377                         strlcpy(event.interface_status.ifname, drv->ifname,
1378                                 sizeof(event.interface_status.ifname));
1379                         event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1380                         wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1381                                    event.interface_status.ifname);
1382                         wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1383                 }
1384                 break;
1385         }
1386 }
1387
1388 static void
1389 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1390                               struct ieee80211req_scan_result *sr)
1391 {
1392         struct wpa_scan_res *result, **tmp;
1393         size_t extra_len;
1394         u8 *pos;
1395
1396         extra_len = 2 + sr->isr_ssid_len;
1397         extra_len += 2 + sr->isr_nrates;
1398         extra_len += 3; /* ERP IE */
1399         extra_len += sr->isr_ie_len;
1400
1401         result = os_zalloc(sizeof(*result) + extra_len);
1402         if (result == NULL)
1403                 return;
1404         os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1405         result->freq = sr->isr_freq;
1406         result->beacon_int = sr->isr_intval;
1407         result->caps = sr->isr_capinfo;
1408         result->qual = sr->isr_rssi;
1409         result->noise = sr->isr_noise;
1410
1411         pos = (u8 *)(result + 1);
1412
1413         *pos++ = WLAN_EID_SSID;
1414         *pos++ = sr->isr_ssid_len;
1415         os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1416         pos += sr->isr_ssid_len;
1417
1418         /*
1419          * Deal all rates as supported rate.
1420          * Because net80211 doesn't report extended supported rate or not.
1421          */
1422         *pos++ = WLAN_EID_SUPP_RATES;
1423         *pos++ = sr->isr_nrates;
1424         os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1425         pos += sr->isr_nrates;
1426
1427         *pos++ = WLAN_EID_ERP_INFO;
1428         *pos++ = 1;
1429         *pos++ = sr->isr_erp;
1430
1431         os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1432         pos += sr->isr_ie_len;
1433
1434         result->ie_len = pos - (u8 *)(result + 1);
1435
1436         tmp = os_realloc(res->res,
1437                          (res->num + 1) * sizeof(struct wpa_scan_res *));
1438         if (tmp == NULL) {
1439                 os_free(result);
1440                 return;
1441         }
1442         tmp[res->num++] = result;
1443         res->res = tmp;
1444 }
1445
1446 struct wpa_scan_results *
1447 wpa_driver_bsd_get_scan_results2(void *priv)
1448 {
1449         struct wpa_driver_bsd_data *drv = priv;
1450         struct ieee80211req_scan_result *sr;
1451         struct wpa_scan_results *res;
1452         int len, rest;
1453         uint8_t buf[24*1024], *pos;
1454
1455         len = get80211var(drv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1456         if (len < 0)
1457                 return NULL;
1458
1459         res = os_zalloc(sizeof(*res));
1460         if (res == NULL)
1461                 return NULL;
1462
1463         pos = buf;
1464         rest = len;
1465         while (rest >= sizeof(struct ieee80211req_scan_result)) {
1466                 sr = (struct ieee80211req_scan_result *)pos;
1467                 wpa_driver_bsd_add_scan_entry(res, sr);
1468                 pos += sr->isr_len;
1469                 rest -= sr->isr_len;
1470         }
1471
1472         wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1473                    len, (unsigned long)res->num);
1474
1475         return res;
1476 }
1477
1478 static int wpa_driver_bsd_capa(struct wpa_driver_bsd_data *drv)
1479 {
1480         /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1481         drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1482                 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1483                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1484                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1485         drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1486                 WPA_DRIVER_CAPA_ENC_WEP104 |
1487                 WPA_DRIVER_CAPA_ENC_TKIP |
1488                 WPA_DRIVER_CAPA_ENC_CCMP;
1489         drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1490                 WPA_DRIVER_AUTH_SHARED |
1491                 WPA_DRIVER_AUTH_LEAP;
1492
1493         //drv->capa.max_scan_ssids = info.max_scan_ssids;
1494         drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1495
1496         return 0;
1497 }
1498
1499 static void *
1500 wpa_driver_bsd_init(void *ctx, const char *ifname)
1501 {
1502 #define GETPARAM(drv, param, v) \
1503         (((v) = get80211param(drv, param)) != -1)
1504         struct wpa_driver_bsd_data *drv;
1505
1506         drv = os_zalloc(sizeof(*drv));
1507         if (drv == NULL)
1508                 return NULL;
1509         /*
1510          * NB: We require the interface name be mappable to an index.
1511          *     This implies we do not support having wpa_supplicant
1512          *     wait for an interface to appear.  This seems ok; that
1513          *     doesn't belong here; it's really the job of devd.
1514          */
1515         drv->ifindex = if_nametoindex(ifname);
1516         if (drv->ifindex == 0) {
1517                 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1518                            __func__, ifname);
1519                 goto fail1;
1520         }
1521         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1522         if (drv->sock < 0)
1523                 goto fail1;
1524         drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1525         if (drv->route < 0)
1526                 goto fail;
1527         eloop_register_read_sock(drv->route,
1528                 wpa_driver_bsd_event_receive, ctx, drv);
1529
1530         drv->ctx = ctx;
1531         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1532
1533         /* Down interface during setup. */
1534         if (wpa_driver_bsd_ctrl_iface(drv, 0) < 0)
1535                 goto fail;
1536
1537         if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1538                 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1539                         __func__, strerror(errno));
1540                 goto fail;
1541         }
1542         if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1543                 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1544                         __func__, strerror(errno));
1545                 goto fail;
1546         }
1547         if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1548                 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1549                         __func__, strerror(errno));
1550                 goto fail;
1551         }
1552
1553         if (bsd_set_mediaopt(drv->sock, drv->ifname, IFM_OMASK,
1554                              0 /* STA */) < 0) {
1555                 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1556                            __func__);
1557                 goto fail;
1558         }
1559
1560         if (wpa_driver_bsd_capa(drv))
1561                 goto fail;
1562
1563         return drv;
1564 fail:
1565         close(drv->sock);
1566 fail1:
1567         os_free(drv);
1568         return NULL;
1569 #undef GETPARAM
1570 }
1571
1572 static void
1573 wpa_driver_bsd_deinit(void *priv)
1574 {
1575         struct wpa_driver_bsd_data *drv = priv;
1576
1577         wpa_driver_bsd_set_wpa(drv, 0);
1578         eloop_unregister_read_sock(drv->route);
1579
1580         /* NB: mark interface down */
1581         wpa_driver_bsd_ctrl_iface(drv, 0);
1582
1583         wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1584         if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1585                 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1586                         __func__);
1587
1588         if (drv->sock_xmit != NULL)
1589                 l2_packet_deinit(drv->sock_xmit);
1590         (void) close(drv->route);               /* ioctl socket */
1591         (void) close(drv->sock);                /* event socket */
1592         os_free(drv);
1593 }
1594
1595 static int
1596 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1597 {
1598         struct wpa_driver_bsd_data *drv = priv;
1599
1600         os_memcpy(capa, &drv->capa, sizeof(*capa));
1601         return 0;
1602 }
1603
1604 static int
1605 wpa_driver_bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
1606 {
1607         struct wpa_driver_bsd_data *drv = priv;
1608
1609         return bsd_set_ieee8021x(drv->sock, drv->ifname, params);
1610 }
1611
1612 static int
1613 wpa_driver_bsd_hapd_set_ssid(const char *ifname, void *priv, const u8 *buf,
1614                              int len)
1615 {
1616         return wpa_driver_bsd_set_ssid(priv, buf, len);
1617 }
1618
1619 static int
1620 wpa_driver_bsd_hapd_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1621 {
1622         return wpa_driver_bsd_get_ssid(priv, buf);
1623 }
1624
1625 static int
1626 wpa_driver_bsd_send_eapol(void *priv, const u8 *addr, const u8 *data,
1627                           size_t data_len, int encrypt, const u8 *own_addr)
1628 {
1629         struct wpa_driver_bsd_data *drv = priv;
1630
1631         return bsd_send_eapol(drv->sock_xmit, addr, data, data_len);
1632 }
1633
1634 static int
1635 wpa_driver_bsd_sta_set_flags(void *priv, const u8 *addr, int total_flags,
1636                              int flags_or, int flags_and)
1637 {
1638         struct wpa_driver_bsd_data *drv = priv;
1639
1640         return bsd_set_sta_authorized(drv->sock, drv->ifname, addr,
1641                                       total_flags, flags_or, flags_and);
1642 }
1643
1644
1645 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1646         .name                   = "bsd",
1647         .desc                   = "BSD 802.11 support",
1648         .init                   = wpa_driver_bsd_init,
1649         .deinit                 = wpa_driver_bsd_deinit,
1650         .get_bssid              = wpa_driver_bsd_get_bssid,
1651         .get_ssid               = wpa_driver_bsd_get_ssid,
1652         .set_key                = wpa_driver_bsd_set_key,
1653         .set_countermeasures    = wpa_driver_bsd_set_countermeasures,
1654         .scan2                  = wpa_driver_bsd_scan,
1655         .get_scan_results2      = wpa_driver_bsd_get_scan_results2,
1656         .deauthenticate         = wpa_driver_bsd_deauthenticate,
1657         .disassociate           = wpa_driver_bsd_disassociate,
1658         .associate              = wpa_driver_bsd_associate,
1659         .get_capa               = wpa_driver_bsd_get_capa,
1660         .set_ieee8021x          = wpa_driver_bsd_set_ieee8021x,
1661         .hapd_set_ssid          = wpa_driver_bsd_hapd_set_ssid,
1662         .hapd_get_ssid          = wpa_driver_bsd_hapd_get_ssid,
1663         .hapd_send_eapol        = wpa_driver_bsd_send_eapol,
1664         .sta_set_flags          = wpa_driver_bsd_sta_set_flags,
1665 };
1666
1667 #endif /* HOSTAPD */