src/drivers/driver_atheros.c

   1 /*
   2  * hostapd / Driver interaction with Atheros driver
   3  * Copyright (c) 2004, Sam Leffler <sam@errno.com>
   4  * Copyright (c) 2004, Video54 Technologies
   5  * Copyright (c) 2005-2007, Jouni Malinen <j@w1.fi>
   6  * Copyright (c) 2009, Atheros Communications
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * Alternatively, this software may be distributed under the terms of BSD
  13  * license.
  14  *
  15  * See README and COPYING for more details.
  16  */
  17
  18 #include "includes.h"
  19 #include <net/if.h>
  20 #include <sys/ioctl.h>
  21
  22 #include "common.h"
  23 #ifndef _BYTE_ORDER
  24 #ifdef WORDS_BIGENDIAN
  25 #define _BYTE_ORDER _BIG_ENDIAN
  26 #else
  27 #define _BYTE_ORDER _LITTLE_ENDIAN
  28 #endif
  29 #endif /* _BYTE_ORDER */
  30
  31 /*
  32  * Note, the ATH_WPS_IE setting must match with the driver build.. If the
  33  * driver does not include this, the IEEE80211_IOCTL_GETWPAIE ioctl will fail.
  34  */
  35 #define ATH_WPS_IE
  36
  37 #include "os/linux/include/ieee80211_external.h"
  38
  39
  40 #ifdef CONFIG_WPS
  41 #include <netpacket/packet.h>
  42
  43 #ifndef ETH_P_80211_RAW
  44 #define ETH_P_80211_RAW 0x0019
  45 #endif
  46 #endif /* CONFIG_WPS */
  47
  48 #include "wireless_copy.h"
  49
  50 #include "driver.h"
  51 #include "eloop.h"
  52 #include "priv_netlink.h"
  53 #include "l2_packet/l2_packet.h"
  54 #include "common/ieee802_11_defs.h"
  55 #include "netlink.h"
  56 #include "linux_ioctl.h"
  57
  58
  59 struct madwifi_driver_data {
  60         struct hostapd_data *hapd;              /* back pointer */
  61
  62         char    iface[IFNAMSIZ + 1];
  63         int     ifindex;
  64         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
  65         struct l2_packet_data *sock_recv;       /* raw packet recv socket */
  66         int     ioctl_sock;                     /* socket for ioctl() use */
  67         struct netlink_data *netlink;
  68         int     we_version;
  69         u8      acct_mac[ETH_ALEN];
  70         struct hostap_sta_driver_data acct_data;
  71
  72         struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
  73 };
  74
  75 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
  76                               int reason_code);
  77
  78 static const char * athr_get_ioctl_name(int op)
  79 {
  80         switch (op) {
  81         case IEEE80211_IOCTL_SETPARAM:
  82                 return "SETPARAM";
  83         case IEEE80211_IOCTL_GETPARAM:
  84                 return "GETPARAM";
  85         case IEEE80211_IOCTL_SETKEY:
  86                 return "SETKEY";
  87         case IEEE80211_IOCTL_SETWMMPARAMS:
  88                 return "SETWMMPARAMS";
  89         case IEEE80211_IOCTL_DELKEY:
  90                 return "DELKEY";
  91         case IEEE80211_IOCTL_GETWMMPARAMS:
  92                 return "GETWMMPARAMS";
  93         case IEEE80211_IOCTL_SETMLME:
  94                 return "SETMLME";
  95         case IEEE80211_IOCTL_GETCHANINFO:
  96                 return "GETCHANINFO";
  97         case IEEE80211_IOCTL_SETOPTIE:
  98                 return "SETOPTIE";
  99         case IEEE80211_IOCTL_GETOPTIE:
 100                 return "GETOPTIE";
 101         case IEEE80211_IOCTL_ADDMAC:
 102                 return "ADDMAC";
 103         case IEEE80211_IOCTL_DELMAC:
 104                 return "DELMAC";
 105         case IEEE80211_IOCTL_GETCHANLIST:
 106                 return "GETCHANLIST";
 107         case IEEE80211_IOCTL_SETCHANLIST:
 108                 return "SETCHANLIST";
 109         case IEEE80211_IOCTL_KICKMAC:
 110                 return "KICKMAC";
 111         case IEEE80211_IOCTL_CHANSWITCH:
 112                 return "CHANSWITCH";
 113         case IEEE80211_IOCTL_GETMODE:
 114                 return "GETMODE";
 115         case IEEE80211_IOCTL_SETMODE:
 116                 return "SETMODE";
 117         case IEEE80211_IOCTL_GET_APPIEBUF:
 118                 return "GET_APPIEBUF";
 119         case IEEE80211_IOCTL_SET_APPIEBUF:
 120                 return "SET_APPIEBUF";
 121         case IEEE80211_IOCTL_SET_ACPARAMS:
 122                 return "SET_ACPARAMS";
 123         case IEEE80211_IOCTL_FILTERFRAME:
 124                 return "FILTERFRAME";
 125         case IEEE80211_IOCTL_SET_RTPARAMS:
 126                 return "SET_RTPARAMS";
 127         case IEEE80211_IOCTL_SENDADDBA:
 128                 return "SENDADDBA";
 129         case IEEE80211_IOCTL_GETADDBASTATUS:
 130                 return "GETADDBASTATUS";
 131         case IEEE80211_IOCTL_SENDDELBA:
 132                 return "SENDDELBA";
 133         case IEEE80211_IOCTL_SET_MEDENYENTRY:
 134                 return "SET_MEDENYENTRY";
 135         case IEEE80211_IOCTL_SET_ADDBARESP:
 136                 return "SET_ADDBARESP";
 137         case IEEE80211_IOCTL_GET_MACADDR:
 138                 return "GET_MACADDR";
 139         case IEEE80211_IOCTL_SET_HBRPARAMS:
 140                 return "SET_HBRPARAMS";
 141         case IEEE80211_IOCTL_SET_RXTIMEOUT:
 142                 return "SET_RXTIMEOUT";
 143         case IEEE80211_IOCTL_STA_STATS:
 144                 return "STA_STATS";
 145         case IEEE80211_IOCTL_GETWPAIE:
 146                 return "GETWPAIE";
 147         default:
 148                 return "??";
 149         }
 150 }
 151
 152
 153 static const char * athr_get_param_name(int op)
 154 {
 155         switch (op) {
 156         case IEEE80211_IOC_MCASTCIPHER:
 157                 return "MCASTCIPHER";
 158         case IEEE80211_PARAM_MCASTKEYLEN:
 159                 return "MCASTKEYLEN";
 160         case IEEE80211_PARAM_UCASTCIPHERS:
 161                 return "UCASTCIPHERS";
 162         case IEEE80211_PARAM_KEYMGTALGS:
 163                 return "KEYMGTALGS";
 164         case IEEE80211_PARAM_RSNCAPS:
 165                 return "RSNCAPS";
 166         case IEEE80211_PARAM_WPA:
 167                 return "WPA";
 168         case IEEE80211_PARAM_AUTHMODE:
 169                 return "AUTHMODE";
 170         case IEEE80211_PARAM_PRIVACY:
 171                 return "PRIVACY";
 172         case IEEE80211_PARAM_COUNTERMEASURES:
 173                 return "COUNTERMEASURES";
 174         default:
 175                 return "??";
 176         }
 177 }
 178
 179
 180 static int
 181 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
 182 {
 183         struct iwreq iwr;
 184         int do_inline = len < IFNAMSIZ;
 185
 186         /* Certain ioctls must use the non-inlined method */
 187         if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
 188             op == IEEE80211_IOCTL_FILTERFRAME)
 189                 do_inline = 0;
 190
 191         memset(&iwr, 0, sizeof(iwr));
 192         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 193         if (do_inline) {
 194                 /*
 195                  * Argument data fits inline; put it there.
 196                  */
 197                 memcpy(iwr.u.name, data, len);
 198         } else {
 199                 /*
 200                  * Argument data too big for inline transfer; setup a
 201                  * parameter block instead; the kernel will transfer
 202                  * the data for the driver.
 203                  */
 204                 iwr.u.data.pointer = data;
 205                 iwr.u.data.length = len;
 206         }
 207
 208         if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
 209                 wpa_printf(MSG_DEBUG, "atheros: %s: %s: ioctl op=0x%x "
 210                            "(%s) len=%d failed: %d (%s)",
 211                            __func__, drv->iface, op,
 212                            athr_get_ioctl_name(op),
 213                            len, errno, strerror(errno));
 214                 return -1;
 215         }
 216         return 0;
 217 }
 218
 219 static int
 220 set80211param(struct madwifi_driver_data *drv, int op, int arg)
 221 {
 222         struct iwreq iwr;
 223
 224         memset(&iwr, 0, sizeof(iwr));
 225         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 226         iwr.u.mode = op;
 227         memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
 228
 229         if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 230                 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 231                 wpa_printf(MSG_DEBUG, "%s: %s: Failed to set parameter (op %d "
 232                            "(%s) arg %d)", __func__, drv->iface, op,
 233                            athr_get_param_name(op), arg);
 234                 return -1;
 235         }
 236         return 0;
 237 }
 238
 239 #ifndef CONFIG_NO_STDOUT_DEBUG
 240 static const char *
 241 ether_sprintf(const u8 *addr)
 242 {
 243         static char buf[sizeof(MACSTR)];
 244
 245         if (addr != NULL)
 246                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 247         else
 248                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 249         return buf;
 250 }
 251 #endif /* CONFIG_NO_STDOUT_DEBUG */
 252
 253 /*
 254  * Configure WPA parameters.
 255  */
 256 static int
 257 madwifi_configure_wpa(struct madwifi_driver_data *drv,
 258                       struct wpa_bss_params *params)
 259 {
 260         int v;
 261
 262         switch (params->wpa_group) {
 263         case WPA_CIPHER_CCMP:
 264                 v = IEEE80211_CIPHER_AES_CCM;
 265                 break;
 266         case WPA_CIPHER_TKIP:
 267                 v = IEEE80211_CIPHER_TKIP;
 268                 break;
 269         case WPA_CIPHER_WEP104:
 270                 v = IEEE80211_CIPHER_WEP;
 271                 break;
 272         case WPA_CIPHER_WEP40:
 273                 v = IEEE80211_CIPHER_WEP;
 274                 break;
 275         case WPA_CIPHER_NONE:
 276                 v = IEEE80211_CIPHER_NONE;
 277                 break;
 278         default:
 279                 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
 280                            params->wpa_group);
 281                 return -1;
 282         }
 283         wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
 284         if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
 285                 printf("Unable to set group key cipher to %u\n", v);
 286                 return -1;
 287         }
 288         if (v == IEEE80211_CIPHER_WEP) {
 289                 /* key length is done only for specific ciphers */
 290                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 291                 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
 292                         printf("Unable to set group key length to %u\n", v);
 293                         return -1;
 294                 }
 295         }
 296
 297         v = 0;
 298         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 299                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 300         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 301                 v |= 1<<IEEE80211_CIPHER_TKIP;
 302         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 303                 v |= 1<<IEEE80211_CIPHER_NONE;
 304         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 305         if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
 306                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 307                 return -1;
 308         }
 309
 310         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 311                    __func__, params->wpa_key_mgmt);
 312         if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
 313                           params->wpa_key_mgmt)) {
 314                 printf("Unable to set key management algorithms to 0x%x\n",
 315                         params->wpa_key_mgmt);
 316                 return -1;
 317         }
 318
 319         v = 0;
 320         if (params->rsn_preauth)
 321                 v |= BIT(0);
 322         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 323                    __func__, params->rsn_preauth);
 324         if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
 325                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 326                 return -1;
 327         }
 328
 329         wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
 330         if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
 331                 printf("Unable to set WPA to %u\n", params->wpa);
 332                 return -1;
 333         }
 334         return 0;
 335 }
 336
 337 static int
 338 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 339 {
 340         struct madwifi_driver_data *drv = priv;
 341
 342         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 343
 344         if (!params->enabled) {
 345                 /* XXX restore state */
 346                 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 347                         IEEE80211_AUTH_AUTO);
 348         }
 349         if (!params->wpa && !params->ieee802_1x) {
 350                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 351                         HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
 352                 return -1;
 353         }
 354         if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
 355                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 356                         HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
 357                 return -1;
 358         }
 359         if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 360                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 361                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 362                         HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
 363                 return -1;
 364         }
 365
 366         return 0;
 367 }
 368
 369 static int
 370 madwifi_set_privacy(void *priv, int enabled)
 371 {
 372         struct madwifi_driver_data *drv = priv;
 373
 374         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 375
 376         return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
 377 }
 378
 379 static int
 380 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
 381 {
 382         struct madwifi_driver_data *drv = priv;
 383         struct ieee80211req_mlme mlme;
 384         int ret;
 385
 386         wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
 387                    __func__, ether_sprintf(addr), authorized);
 388
 389         if (authorized)
 390                 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
 391         else
 392                 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
 393         mlme.im_reason = 0;
 394         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 395         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 396         if (ret < 0) {
 397                 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
 398                            __func__, authorized ? "" : "un", MAC2STR(addr));
 399         }
 400
 401         return ret;
 402 }
 403
 404 static int
 405 madwifi_sta_set_flags(void *priv, const u8 *addr,
 406                       int total_flags, int flags_or, int flags_and)
 407 {
 408         /* For now, only support setting Authorized flag */
 409         if (flags_or & WPA_STA_AUTHORIZED)
 410                 return madwifi_set_sta_authorized(priv, addr, 1);
 411         if (!(flags_and & WPA_STA_AUTHORIZED))
 412                 return madwifi_set_sta_authorized(priv, addr, 0);
 413         return 0;
 414 }
 415
 416 static int
 417 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
 418 {
 419         struct madwifi_driver_data *drv = priv;
 420         struct ieee80211req_del_key wk;
 421         int ret;
 422
 423         wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
 424                    __func__, ether_sprintf(addr), key_idx);
 425
 426         memset(&wk, 0, sizeof(wk));
 427         if (addr != NULL) {
 428                 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 429                 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
 430         } else {
 431                 wk.idk_keyix = key_idx;
 432         }
 433
 434         ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
 435         if (ret < 0) {
 436                 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
 437                            " key_idx %d)", __func__, ether_sprintf(addr),
 438                            key_idx);
 439         }
 440
 441         return ret;
 442 }
 443
 444 static int
 445 madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 446                 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
 447                 size_t seq_len, const u8 *key, size_t key_len)
 448 {
 449         struct madwifi_driver_data *drv = priv;
 450         struct ieee80211req_key wk;
 451         u_int8_t cipher;
 452         int ret;
 453
 454         if (alg == WPA_ALG_NONE)
 455                 return madwifi_del_key(drv, addr, key_idx);
 456
 457         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
 458                    __func__, alg, ether_sprintf(addr), key_idx);
 459
 460         switch (alg) {
 461         case WPA_ALG_WEP:
 462                 cipher = IEEE80211_CIPHER_WEP;
 463                 break;
 464         case WPA_ALG_TKIP:
 465                 cipher = IEEE80211_CIPHER_TKIP;
 466                 break;
 467         case WPA_ALG_CCMP:
 468                 cipher = IEEE80211_CIPHER_AES_CCM;
 469                 break;
 470         default:
 471                 printf("%s: unknown/unsupported algorithm %d\n",
 472                         __func__, alg);
 473                 return -1;
 474         }
 475
 476         if (key_len > sizeof(wk.ik_keydata)) {
 477                 printf("%s: key length %lu too big\n", __func__,
 478                        (unsigned long) key_len);
 479                 return -3;
 480         }
 481
 482         memset(&wk, 0, sizeof(wk));
 483         wk.ik_type = cipher;
 484         wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
 485         if (addr == NULL) {
 486                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 487                 wk.ik_keyix = key_idx;
 488                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 489         } else {
 490                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 491                 wk.ik_keyix = IEEE80211_KEYIX_NONE;
 492         }
 493         wk.ik_keylen = key_len;
 494         memcpy(wk.ik_keydata, key, key_len);
 495
 496         ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
 497         if (ret < 0) {
 498                 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
 499                            " key_idx %d alg %d key_len %lu set_tx %d)",
 500                            __func__, ether_sprintf(wk.ik_macaddr), key_idx,
 501                            alg, (unsigned long) key_len, set_tx);
 502         }
 503
 504         return ret;
 505 }
 506
 507
 508 static int
 509 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 510                    u8 *seq)
 511 {
 512         struct madwifi_driver_data *drv = priv;
 513         struct ieee80211req_key wk;
 514
 515         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 516                    __func__, ether_sprintf(addr), idx);
 517
 518         memset(&wk, 0, sizeof(wk));
 519         if (addr == NULL)
 520                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 521         else
 522                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 523         wk.ik_keyix = idx;
 524
 525         if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
 526                 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
 527                            "(addr " MACSTR " key_idx %d)",
 528                            __func__, MAC2STR(wk.ik_macaddr), idx);
 529                 return -1;
 530         }
 531
 532 #ifdef WORDS_BIGENDIAN
 533         {
 534                 /*
 535                  * wk.ik_keytsc is in host byte order (big endian), need to
 536                  * swap it to match with the byte order used in WPA.
 537                  */
 538                 int i;
 539 #ifndef WPA_KEY_RSC_LEN
 540 #define WPA_KEY_RSC_LEN 8
 541 #endif
 542                 u8 tmp[WPA_KEY_RSC_LEN];
 543                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 544                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 545                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 546                 }
 547         }
 548 #else /* WORDS_BIGENDIAN */
 549         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 550 #endif /* WORDS_BIGENDIAN */
 551         return 0;
 552 }
 553
 554
 555 static int
 556 madwifi_flush(void *priv)
 557 {
 558         u8 allsta[IEEE80211_ADDR_LEN];
 559         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 560         return madwifi_sta_deauth(priv, NULL, allsta,
 561                                   IEEE80211_REASON_AUTH_LEAVE);
 562 }
 563
 564
 565 static int
 566 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 567                              const u8 *addr)
 568 {
 569         struct madwifi_driver_data *drv = priv;
 570         struct ieee80211req_sta_stats stats;
 571
 572         memset(data, 0, sizeof(*data));
 573
 574         /*
 575          * Fetch statistics for station from the system.
 576          */
 577         memset(&stats, 0, sizeof(stats));
 578         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 579         if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
 580                          &stats, sizeof(stats))) {
 581                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 582                            MACSTR ")", __func__, MAC2STR(addr));
 583                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 584                         memcpy(data, &drv->acct_data, sizeof(*data));
 585                         return 0;
 586                 }
 587
 588                 printf("Failed to get station stats information element.\n");
 589                 return -1;
 590         }
 591
 592         data->rx_packets = stats.is_stats.ns_rx_data;
 593         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 594         data->tx_packets = stats.is_stats.ns_tx_data;
 595         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 596         return 0;
 597 }
 598
 599
 600 static int
 601 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 602 {
 603         struct madwifi_driver_data *drv = priv;
 604         struct ieee80211req_mlme mlme;
 605         int ret;
 606
 607         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 608
 609         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 610         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 611         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 612                            sizeof(mlme));
 613         if (ret < 0) {
 614                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 615                            MACSTR ")", __func__, MAC2STR(addr));
 616         }
 617
 618         return ret;
 619 }
 620
 621
 622 static int
 623 madwifi_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
 624 {
 625         /*
 626          * Do nothing; we setup parameters at startup that define the
 627          * contents of the beacon information element.
 628          */
 629         return 0;
 630 }
 631
 632 static int
 633 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 634                    int reason_code)
 635 {
 636         struct madwifi_driver_data *drv = priv;
 637         struct ieee80211req_mlme mlme;
 638         int ret;
 639
 640         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 641                    __func__, ether_sprintf(addr), reason_code);
 642
 643         mlme.im_op = IEEE80211_MLME_DEAUTH;
 644         mlme.im_reason = reason_code;
 645         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 646         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 647         if (ret < 0) {
 648                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 649                            " reason %d)",
 650                            __func__, MAC2STR(addr), reason_code);
 651         }
 652
 653         return ret;
 654 }
 655
 656 static int
 657 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 658                      int reason_code)
 659 {
 660         struct madwifi_driver_data *drv = priv;
 661         struct ieee80211req_mlme mlme;
 662         int ret;
 663
 664         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 665                    __func__, ether_sprintf(addr), reason_code);
 666
 667         mlme.im_op = IEEE80211_MLME_DISASSOC;
 668         mlme.im_reason = reason_code;
 669         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 670         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 671         if (ret < 0) {
 672                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 673                            MACSTR " reason %d)",
 674                            __func__, MAC2STR(addr), reason_code);
 675         }
 676
 677         return ret;
 678 }
 679
 680 #ifdef CONFIG_WPS
 681 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 682                                 size_t len)
 683 {
 684         struct madwifi_driver_data *drv = ctx;
 685         const struct ieee80211_mgmt *mgmt;
 686         u16 fc;
 687         union wpa_event_data event;
 688
 689         /* Send Probe Request information to WPS processing */
 690
 691         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 692                 return;
 693         mgmt = (const struct ieee80211_mgmt *) buf;
 694
 695         fc = le_to_host16(mgmt->frame_control);
 696         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 697             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 698                 return;
 699
 700         os_memset(&event, 0, sizeof(event));
 701         event.rx_probe_req.sa = mgmt->sa;
 702         event.rx_probe_req.ie = mgmt->u.probe_req.variable;
 703         event.rx_probe_req.ie_len =
 704                 len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 705         wpa_supplicant_event(drv->hapd, EVENT_RX_PROBE_REQ, &event);
 706 }
 707 #endif /* CONFIG_WPS */
 708
 709 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 710 {
 711         int ret = 0;
 712 #ifdef CONFIG_WPS
 713         struct ieee80211req_set_filter filt;
 714
 715         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 716         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 717
 718         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 719                            sizeof(struct ieee80211req_set_filter));
 720         if (ret)
 721                 return ret;
 722
 723         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 724                                        madwifi_raw_receive, drv, 1);
 725         if (drv->sock_raw == NULL)
 726                 return -1;
 727 #endif /* CONFIG_WPS */
 728         return ret;
 729 }
 730
 731 #ifdef CONFIG_WPS
 732 static int
 733 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 734 {
 735         struct madwifi_driver_data *drv = priv;
 736         u8 buf[256];
 737         struct ieee80211req_getset_appiebuf *beac_ie;
 738
 739         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 740                    (unsigned long) len);
 741
 742         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 743         beac_ie->app_frmtype = frametype;
 744         beac_ie->app_buflen = len;
 745         memcpy(&(beac_ie->app_buf[0]), ie, len);
 746
 747         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 748                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 749 }
 750
 751 static int
 752 madwifi_set_ap_wps_ie(void *priv, const struct wpabuf *beacon,
 753                       const struct wpabuf *proberesp)
 754 {
 755         if (madwifi_set_wps_ie(priv, beacon ? wpabuf_head(beacon) : NULL,
 756                                beacon ? wpabuf_len(beacon) : 0,
 757                                IEEE80211_APPIE_FRAME_BEACON))
 758                 return -1;
 759         return madwifi_set_wps_ie(priv,
 760                                   proberesp ? wpabuf_head(proberesp) : NULL,
 761                                   proberesp ? wpabuf_len(proberesp): 0,
 762                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 763 }
 764 #else /* CONFIG_WPS */
 765 #define madwifi_set_ap_wps_ie NULL
 766 #endif /* CONFIG_WPS */
 767
 768 static void
 769 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 770 {
 771         struct hostapd_data *hapd = drv->hapd;
 772         struct ieee80211req_wpaie ie;
 773         int ielen = 0;
 774         u8 *iebuf = NULL;
 775
 776         /*
 777          * Fetch negotiated WPA/RSN parameters from the system.
 778          */
 779         memset(&ie, 0, sizeof(ie));
 780         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 781         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 782                 /*
 783                  * See ATH_WPS_IE comment in the beginning of the file for a
 784                  * possible cause for the failure..
 785                  */
 786                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
 787                            __func__, strerror(errno));
 788                 goto no_ie;
 789         }
 790         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 791                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 792         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 793                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 794         iebuf = ie.wpa_ie;
 795         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 796          * Assume the IE was not included if the IE type is unknown. */
 797         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 798                 iebuf[1] = 0;
 799         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 800                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 801                  * set. This is needed for WPA2. */
 802                 iebuf = ie.rsn_ie;
 803                 if (iebuf[0] != WLAN_EID_RSN)
 804                         iebuf[1] = 0;
 805         }
 806
 807         ielen = iebuf[1];
 808         if (ielen == 0)
 809                 iebuf = NULL;
 810         else
 811                 ielen += 2;
 812
 813 no_ie:
 814         drv_event_assoc(hapd, addr, iebuf, ielen);
 815
 816         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 817                 /* Cached accounting data is not valid anymore. */
 818                 memset(drv->acct_mac, 0, ETH_ALEN);
 819                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 820         }
 821 }
 822
 823 static void
 824 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 825                                        char *custom, char *end)
 826 {
 827         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 828
 829         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 830                 char *pos;
 831                 u8 addr[ETH_ALEN];
 832                 pos = strstr(custom, "addr=");
 833                 if (pos == NULL) {
 834                         wpa_printf(MSG_DEBUG,
 835                                    "MLME-MICHAELMICFAILURE.indication "
 836                                    "without sender address ignored");
 837                         return;
 838                 }
 839                 pos += 5;
 840                 if (hwaddr_aton(pos, addr) == 0) {
 841                         union wpa_event_data data;
 842                         os_memset(&data, 0, sizeof(data));
 843                         data.michael_mic_failure.unicast = 1;
 844                         data.michael_mic_failure.src = addr;
 845                         wpa_supplicant_event(drv->hapd,
 846                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 847                 } else {
 848                         wpa_printf(MSG_DEBUG,
 849                                    "MLME-MICHAELMICFAILURE.indication "
 850                                    "with invalid MAC address");
 851                 }
 852         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 853                 char *key, *value;
 854                 u32 val;
 855                 key = custom;
 856                 while ((key = strchr(key, '\n')) != NULL) {
 857                         key++;
 858                         value = strchr(key, '=');
 859                         if (value == NULL)
 860                                 continue;
 861                         *value++ = '\0';
 862                         val = strtoul(value, NULL, 10);
 863                         if (strcmp(key, "mac") == 0)
 864                                 hwaddr_aton(value, drv->acct_mac);
 865                         else if (strcmp(key, "rx_packets") == 0)
 866                                 drv->acct_data.rx_packets = val;
 867                         else if (strcmp(key, "tx_packets") == 0)
 868                                 drv->acct_data.tx_packets = val;
 869                         else if (strcmp(key, "rx_bytes") == 0)
 870                                 drv->acct_data.rx_bytes = val;
 871                         else if (strcmp(key, "tx_bytes") == 0)
 872                                 drv->acct_data.tx_bytes = val;
 873                         key = value;
 874                 }
 875 #ifdef CONFIG_WPS
 876         } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
 877                 /* Some atheros kernels send push button as a wireless event */
 878                 /* PROBLEM! this event is received for ALL BSSs ...
 879                  * so all are enabled for WPS... ugh.
 880                  */
 881                 wpa_supplicant_event(drv->hapd, EVENT_WPS_BUTTON_PUSHED, NULL);
 882         } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
 883                 /*
 884                  * Atheros driver uses a hack to pass Probe Request frames as a
 885                  * binary data in the custom wireless event. The old way (using
 886                  * packet sniffing) didn't work when bridging.
 887                  * Format: "Manage.prob_req <frame len>" | zero padding | frame
 888                  */
 889 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
 890                 int len = atoi(custom + 16);
 891                 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
 892                         wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
 893                                    "length %d", len);
 894                         return;
 895                 }
 896                 madwifi_raw_receive(drv, NULL,
 897                                     (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
 898 #endif /* CONFIG_WPS */
 899         }
 900 }
 901
 902 static void
 903 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 904                                 char *data, int len)
 905 {
 906         struct iw_event iwe_buf, *iwe = &iwe_buf;
 907         char *pos, *end, *custom, *buf;
 908
 909         pos = data;
 910         end = data + len;
 911
 912         while (pos + IW_EV_LCP_LEN <= end) {
 913                 /* Event data may be unaligned, so make a local, aligned copy
 914                  * before processing. */
 915                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 916                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 917                            iwe->cmd, iwe->len);
 918                 if (iwe->len <= IW_EV_LCP_LEN)
 919                         return;
 920
 921                 custom = pos + IW_EV_POINT_LEN;
 922                 if (drv->we_version > 18 &&
 923                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 924                      iwe->cmd == IWEVASSOCREQIE ||
 925                      iwe->cmd == IWEVCUSTOM)) {
 926                         /* WE-19 removed the pointer from struct iw_point */
 927                         char *dpos = (char *) &iwe_buf.u.data.length;
 928                         int dlen = dpos - (char *) &iwe_buf;
 929                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 930                                sizeof(struct iw_event) - dlen);
 931                 } else {
 932                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 933                         custom += IW_EV_POINT_OFF;
 934                 }
 935
 936                 switch (iwe->cmd) {
 937                 case IWEVEXPIRED:
 938                         drv_event_disassoc(drv->hapd,
 939                                            (u8 *) iwe->u.addr.sa_data);
 940                         break;
 941                 case IWEVREGISTERED:
 942                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 943                         break;
 944                 case IWEVASSOCREQIE:
 945                         /* Driver hack.. Use IWEVASSOCREQIE to bypass
 946                          * IWEVCUSTOM size limitations. Need to handle this
 947                          * just like IWEVCUSTOM.
 948                          */
 949                 case IWEVCUSTOM:
 950                         if (custom + iwe->u.data.length > end)
 951                                 return;
 952                         buf = malloc(iwe->u.data.length + 1);
 953                         if (buf == NULL)
 954                                 return;         /* XXX */
 955                         memcpy(buf, custom, iwe->u.data.length);
 956                         buf[iwe->u.data.length] = '\0';
 957                         madwifi_wireless_event_wireless_custom(
 958                                 drv, buf, buf + iwe->u.data.length);
 959                         free(buf);
 960                         break;
 961                 }
 962
 963                 pos += iwe->len;
 964         }
 965 }
 966
 967
 968 static void
 969 madwifi_wireless_event_rtm_newlink(void *ctx,
 970                                    struct ifinfomsg *ifi, u8 *buf, size_t len)
 971 {
 972         struct madwifi_driver_data *drv = ctx;
 973         int attrlen, rta_len;
 974         struct rtattr *attr;
 975
 976         if (ifi->ifi_index != drv->ifindex)
 977                 return;
 978
 979         attrlen = len;
 980         attr = (struct rtattr *) buf;
 981
 982         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 983         while (RTA_OK(attr, attrlen)) {
 984                 if (attr->rta_type == IFLA_WIRELESS) {
 985                         madwifi_wireless_event_wireless(
 986                                 drv, ((char *) attr) + rta_len,
 987                                 attr->rta_len - rta_len);
 988                 }
 989                 attr = RTA_NEXT(attr, attrlen);
 990         }
 991 }
 992
 993
 994 static int
 995 madwifi_get_we_version(struct madwifi_driver_data *drv)
 996 {
 997         struct iw_range *range;
 998         struct iwreq iwr;
 999         int minlen;
1000         size_t buflen;
1001
1002         drv->we_version = 0;
1003
1004         /*
1005          * Use larger buffer than struct iw_range in order to allow the
1006          * structure to grow in the future.
1007          */
1008         buflen = sizeof(struct iw_range) + 500;
1009         range = os_zalloc(buflen);
1010         if (range == NULL)
1011                 return -1;
1012
1013         memset(&iwr, 0, sizeof(iwr));
1014         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1015         iwr.u.data.pointer = (caddr_t) range;
1016         iwr.u.data.length = buflen;
1017
1018         minlen = ((char *) &range->enc_capa) - (char *) range +
1019                 sizeof(range->enc_capa);
1020
1021         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1022                 perror("ioctl[SIOCGIWRANGE]");
1023                 free(range);
1024                 return -1;
1025         } else if (iwr.u.data.length >= minlen &&
1026                    range->we_version_compiled >= 18) {
1027                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1028                            "WE(source)=%d enc_capa=0x%x",
1029                            range->we_version_compiled,
1030                            range->we_version_source,
1031                            range->enc_capa);
1032                 drv->we_version = range->we_version_compiled;
1033         }
1034
1035         free(range);
1036         return 0;
1037 }
1038
1039
1040 static int
1041 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1042 {
1043         struct netlink_config *cfg;
1044
1045         madwifi_get_we_version(drv);
1046
1047         cfg = os_zalloc(sizeof(*cfg));
1048         if (cfg == NULL)
1049                 return -1;
1050         cfg->ctx = drv;
1051         cfg->newlink_cb = madwifi_wireless_event_rtm_newlink;
1052         drv->netlink = netlink_init(cfg);
1053         if (drv->netlink == NULL) {
1054                 os_free(cfg);
1055                 return -1;
1056         }
1057
1058         return 0;
1059 }
1060
1061
1062 static int
1063 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1064                    int encrypt, const u8 *own_addr)
1065 {
1066         struct madwifi_driver_data *drv = priv;
1067         unsigned char buf[3000];
1068         unsigned char *bp = buf;
1069         struct l2_ethhdr *eth;
1070         size_t len;
1071         int status;
1072
1073         /*
1074          * Prepend the Ethernet header.  If the caller left us
1075          * space at the front we could just insert it but since
1076          * we don't know we copy to a local buffer.  Given the frequency
1077          * and size of frames this probably doesn't matter.
1078          */
1079         len = data_len + sizeof(struct l2_ethhdr);
1080         if (len > sizeof(buf)) {
1081                 bp = malloc(len);
1082                 if (bp == NULL) {
1083                         printf("EAPOL frame discarded, cannot malloc temp "
1084                                "buffer of size %lu!\n", (unsigned long) len);
1085                         return -1;
1086                 }
1087         }
1088         eth = (struct l2_ethhdr *) bp;
1089         memcpy(eth->h_dest, addr, ETH_ALEN);
1090         memcpy(eth->h_source, own_addr, ETH_ALEN);
1091         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1092         memcpy(eth+1, data, data_len);
1093
1094         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1095
1096         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1097
1098         if (bp != buf)
1099                 free(bp);
1100         return status;
1101 }
1102
1103 static void
1104 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1105 {
1106         struct madwifi_driver_data *drv = ctx;
1107         drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
1108                            len - sizeof(struct l2_ethhdr));
1109 }
1110
1111 static void *
1112 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1113 {
1114         struct madwifi_driver_data *drv;
1115         struct ifreq ifr;
1116         struct iwreq iwr;
1117         char brname[IFNAMSIZ];
1118
1119         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1120         if (drv == NULL) {
1121                 printf("Could not allocate memory for madwifi driver data\n");
1122                 return NULL;
1123         }
1124
1125         drv->hapd = hapd;
1126         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1127         if (drv->ioctl_sock < 0) {
1128                 perror("socket[PF_INET,SOCK_DGRAM]");
1129                 goto bad;
1130         }
1131         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1132
1133         memset(&ifr, 0, sizeof(ifr));
1134         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1135         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1136                 perror("ioctl(SIOCGIFINDEX)");
1137                 goto bad;
1138         }
1139         drv->ifindex = ifr.ifr_ifindex;
1140
1141         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1142                                         handle_read, drv, 1);
1143         if (drv->sock_xmit == NULL)
1144                 goto bad;
1145         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1146                 goto bad;
1147         if (params->bridge[0]) {
1148                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1149                            params->bridge[0]);
1150                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1151                                                 ETH_P_EAPOL, handle_read, drv,
1152                                                 1);
1153                 if (drv->sock_recv == NULL)
1154                         goto bad;
1155         } else if (linux_br_get(brname, drv->iface) == 0) {
1156                 wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
1157                            "EAPOL receive", brname);
1158                 drv->sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
1159                                                 handle_read, drv, 1);
1160                 if (drv->sock_recv == NULL)
1161                         goto bad;
1162         } else
1163                 drv->sock_recv = drv->sock_xmit;
1164
1165         memset(&iwr, 0, sizeof(iwr));
1166         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1167
1168         iwr.u.mode = IW_MODE_MASTER;
1169
1170         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1171                 perror("ioctl[SIOCSIWMODE]");
1172                 printf("Could not set interface to master mode!\n");
1173                 goto bad;
1174         }
1175
1176         /* mark down during setup */
1177         linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1178         madwifi_set_privacy(drv, 0); /* default to no privacy */
1179
1180         madwifi_receive_probe_req(drv);
1181
1182         if (madwifi_wireless_event_init(drv))
1183                 goto bad;
1184
1185         return drv;
1186 bad:
1187         if (drv->sock_xmit != NULL)
1188                 l2_packet_deinit(drv->sock_xmit);
1189         if (drv->ioctl_sock >= 0)
1190                 close(drv->ioctl_sock);
1191         if (drv != NULL)
1192                 free(drv);
1193         return NULL;
1194 }
1195
1196
1197 static void
1198 madwifi_deinit(void *priv)
1199 {
1200         struct madwifi_driver_data *drv = priv;
1201
1202         netlink_deinit(drv->netlink);
1203         (void) linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1204         if (drv->ioctl_sock >= 0)
1205                 close(drv->ioctl_sock);
1206         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1207                 l2_packet_deinit(drv->sock_recv);
1208         if (drv->sock_xmit != NULL)
1209                 l2_packet_deinit(drv->sock_xmit);
1210         if (drv->sock_raw)
1211                 l2_packet_deinit(drv->sock_raw);
1212         free(drv);
1213 }
1214
1215 static int
1216 madwifi_set_ssid(void *priv, const u8 *buf, int len)
1217 {
1218         struct madwifi_driver_data *drv = priv;
1219         struct iwreq iwr;
1220
1221         memset(&iwr, 0, sizeof(iwr));
1222         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1223         iwr.u.essid.flags = 1; /* SSID active */
1224         iwr.u.essid.pointer = (caddr_t) buf;
1225         iwr.u.essid.length = len + 1;
1226
1227         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1228                 perror("ioctl[SIOCSIWESSID]");
1229                 printf("len=%d\n", len);
1230                 return -1;
1231         }
1232         return 0;
1233 }
1234
1235 static int
1236 madwifi_get_ssid(void *priv, u8 *buf, int len)
1237 {
1238         struct madwifi_driver_data *drv = priv;
1239         struct iwreq iwr;
1240         int ret = 0;
1241
1242         memset(&iwr, 0, sizeof(iwr));
1243         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1244         iwr.u.essid.pointer = (caddr_t) buf;
1245         iwr.u.essid.length = len;
1246
1247         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1248                 perror("ioctl[SIOCGIWESSID]");
1249                 ret = -1;
1250         } else
1251                 ret = iwr.u.essid.length;
1252
1253         return ret;
1254 }
1255
1256 static int
1257 madwifi_set_countermeasures(void *priv, int enabled)
1258 {
1259         struct madwifi_driver_data *drv = priv;
1260         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1261         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1262 }
1263
1264 static int
1265 madwifi_commit(void *priv)
1266 {
1267         struct madwifi_driver_data *drv = priv;
1268         return linux_set_iface_flags(drv->ioctl_sock, drv->iface, 1);
1269 }
1270
1271 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1272         .name                   = "atheros",
1273         .hapd_init              = madwifi_init,
1274         .deinit                 = madwifi_deinit,
1275         .set_ieee8021x          = madwifi_set_ieee8021x,
1276         .set_privacy            = madwifi_set_privacy,
1277         .set_key                = madwifi_set_key,
1278         .get_seqnum             = madwifi_get_seqnum,
1279         .flush                  = madwifi_flush,
1280         .set_generic_elem       = madwifi_set_opt_ie,
1281         .sta_set_flags          = madwifi_sta_set_flags,
1282         .read_sta_data          = madwifi_read_sta_driver_data,
1283         .hapd_send_eapol        = madwifi_send_eapol,
1284         .sta_disassoc           = madwifi_sta_disassoc,
1285         .sta_deauth             = madwifi_sta_deauth,
1286         .hapd_set_ssid          = madwifi_set_ssid,
1287         .hapd_get_ssid          = madwifi_get_ssid,
1288         .set_countermeasures    = madwifi_set_countermeasures,
1289         .sta_clear_stats        = madwifi_sta_clear_stats,
1290         .commit                 = madwifi_commit,
1291         .set_ap_wps_ie          = madwifi_set_ap_wps_ie,
1292 };