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 static int madwifi_set_privacy(void *priv, int enabled);
  78
  79 static const char * athr_get_ioctl_name(int op)
  80 {
  81         switch (op) {
  82         case IEEE80211_IOCTL_SETPARAM:
  83                 return "SETPARAM";
  84         case IEEE80211_IOCTL_GETPARAM:
  85                 return "GETPARAM";
  86         case IEEE80211_IOCTL_SETKEY:
  87                 return "SETKEY";
  88         case IEEE80211_IOCTL_SETWMMPARAMS:
  89                 return "SETWMMPARAMS";
  90         case IEEE80211_IOCTL_DELKEY:
  91                 return "DELKEY";
  92         case IEEE80211_IOCTL_GETWMMPARAMS:
  93                 return "GETWMMPARAMS";
  94         case IEEE80211_IOCTL_SETMLME:
  95                 return "SETMLME";
  96         case IEEE80211_IOCTL_GETCHANINFO:
  97                 return "GETCHANINFO";
  98         case IEEE80211_IOCTL_SETOPTIE:
  99                 return "SETOPTIE";
 100         case IEEE80211_IOCTL_GETOPTIE:
 101                 return "GETOPTIE";
 102         case IEEE80211_IOCTL_ADDMAC:
 103                 return "ADDMAC";
 104         case IEEE80211_IOCTL_DELMAC:
 105                 return "DELMAC";
 106         case IEEE80211_IOCTL_GETCHANLIST:
 107                 return "GETCHANLIST";
 108         case IEEE80211_IOCTL_SETCHANLIST:
 109                 return "SETCHANLIST";
 110         case IEEE80211_IOCTL_KICKMAC:
 111                 return "KICKMAC";
 112         case IEEE80211_IOCTL_CHANSWITCH:
 113                 return "CHANSWITCH";
 114         case IEEE80211_IOCTL_GETMODE:
 115                 return "GETMODE";
 116         case IEEE80211_IOCTL_SETMODE:
 117                 return "SETMODE";
 118         case IEEE80211_IOCTL_GET_APPIEBUF:
 119                 return "GET_APPIEBUF";
 120         case IEEE80211_IOCTL_SET_APPIEBUF:
 121                 return "SET_APPIEBUF";
 122         case IEEE80211_IOCTL_SET_ACPARAMS:
 123                 return "SET_ACPARAMS";
 124         case IEEE80211_IOCTL_FILTERFRAME:
 125                 return "FILTERFRAME";
 126         case IEEE80211_IOCTL_SET_RTPARAMS:
 127                 return "SET_RTPARAMS";
 128         case IEEE80211_IOCTL_SENDADDBA:
 129                 return "SENDADDBA";
 130         case IEEE80211_IOCTL_GETADDBASTATUS:
 131                 return "GETADDBASTATUS";
 132         case IEEE80211_IOCTL_SENDDELBA:
 133                 return "SENDDELBA";
 134         case IEEE80211_IOCTL_SET_MEDENYENTRY:
 135                 return "SET_MEDENYENTRY";
 136         case IEEE80211_IOCTL_SET_ADDBARESP:
 137                 return "SET_ADDBARESP";
 138         case IEEE80211_IOCTL_GET_MACADDR:
 139                 return "GET_MACADDR";
 140         case IEEE80211_IOCTL_SET_HBRPARAMS:
 141                 return "SET_HBRPARAMS";
 142         case IEEE80211_IOCTL_SET_RXTIMEOUT:
 143                 return "SET_RXTIMEOUT";
 144         case IEEE80211_IOCTL_STA_STATS:
 145                 return "STA_STATS";
 146         case IEEE80211_IOCTL_GETWPAIE:
 147                 return "GETWPAIE";
 148         default:
 149                 return "??";
 150         }
 151 }
 152
 153
 154 static const char * athr_get_param_name(int op)
 155 {
 156         switch (op) {
 157         case IEEE80211_IOC_MCASTCIPHER:
 158                 return "MCASTCIPHER";
 159         case IEEE80211_PARAM_MCASTKEYLEN:
 160                 return "MCASTKEYLEN";
 161         case IEEE80211_PARAM_UCASTCIPHERS:
 162                 return "UCASTCIPHERS";
 163         case IEEE80211_PARAM_KEYMGTALGS:
 164                 return "KEYMGTALGS";
 165         case IEEE80211_PARAM_RSNCAPS:
 166                 return "RSNCAPS";
 167         case IEEE80211_PARAM_WPA:
 168                 return "WPA";
 169         case IEEE80211_PARAM_AUTHMODE:
 170                 return "AUTHMODE";
 171         case IEEE80211_PARAM_PRIVACY:
 172                 return "PRIVACY";
 173         case IEEE80211_PARAM_COUNTERMEASURES:
 174                 return "COUNTERMEASURES";
 175         default:
 176                 return "??";
 177         }
 178 }
 179
 180
 181 static int
 182 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
 183 {
 184         struct iwreq iwr;
 185         int do_inline = len < IFNAMSIZ;
 186
 187         /* Certain ioctls must use the non-inlined method */
 188         if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
 189             op == IEEE80211_IOCTL_FILTERFRAME)
 190                 do_inline = 0;
 191
 192         memset(&iwr, 0, sizeof(iwr));
 193         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 194         if (do_inline) {
 195                 /*
 196                  * Argument data fits inline; put it there.
 197                  */
 198                 memcpy(iwr.u.name, data, len);
 199         } else {
 200                 /*
 201                  * Argument data too big for inline transfer; setup a
 202                  * parameter block instead; the kernel will transfer
 203                  * the data for the driver.
 204                  */
 205                 iwr.u.data.pointer = data;
 206                 iwr.u.data.length = len;
 207         }
 208
 209         if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
 210                 wpa_printf(MSG_DEBUG, "atheros: %s: %s: ioctl op=0x%x "
 211                            "(%s) len=%d failed: %d (%s)",
 212                            __func__, drv->iface, op,
 213                            athr_get_ioctl_name(op),
 214                            len, errno, strerror(errno));
 215                 return -1;
 216         }
 217         return 0;
 218 }
 219
 220 static int
 221 set80211param(struct madwifi_driver_data *drv, int op, int arg)
 222 {
 223         struct iwreq iwr;
 224
 225         memset(&iwr, 0, sizeof(iwr));
 226         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 227         iwr.u.mode = op;
 228         memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
 229
 230         if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 231                 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 232                 wpa_printf(MSG_DEBUG, "%s: %s: Failed to set parameter (op %d "
 233                            "(%s) arg %d)", __func__, drv->iface, op,
 234                            athr_get_param_name(op), arg);
 235                 return -1;
 236         }
 237         return 0;
 238 }
 239
 240 #ifndef CONFIG_NO_STDOUT_DEBUG
 241 static const char *
 242 ether_sprintf(const u8 *addr)
 243 {
 244         static char buf[sizeof(MACSTR)];
 245
 246         if (addr != NULL)
 247                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 248         else
 249                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 250         return buf;
 251 }
 252 #endif /* CONFIG_NO_STDOUT_DEBUG */
 253
 254 /*
 255  * Configure WPA parameters.
 256  */
 257 static int
 258 madwifi_configure_wpa(struct madwifi_driver_data *drv,
 259                       struct wpa_bss_params *params)
 260 {
 261         int v;
 262
 263         switch (params->wpa_group) {
 264         case WPA_CIPHER_CCMP:
 265                 v = IEEE80211_CIPHER_AES_CCM;
 266                 break;
 267         case WPA_CIPHER_TKIP:
 268                 v = IEEE80211_CIPHER_TKIP;
 269                 break;
 270         case WPA_CIPHER_WEP104:
 271                 v = IEEE80211_CIPHER_WEP;
 272                 break;
 273         case WPA_CIPHER_WEP40:
 274                 v = IEEE80211_CIPHER_WEP;
 275                 break;
 276         case WPA_CIPHER_NONE:
 277                 v = IEEE80211_CIPHER_NONE;
 278                 break;
 279         default:
 280                 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
 281                            params->wpa_group);
 282                 return -1;
 283         }
 284         wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
 285         if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
 286                 printf("Unable to set group key cipher to %u\n", v);
 287                 return -1;
 288         }
 289         if (v == IEEE80211_CIPHER_WEP) {
 290                 /* key length is done only for specific ciphers */
 291                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 292                 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
 293                         printf("Unable to set group key length to %u\n", v);
 294                         return -1;
 295                 }
 296         }
 297
 298         v = 0;
 299         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 300                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 301         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 302                 v |= 1<<IEEE80211_CIPHER_TKIP;
 303         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 304                 v |= 1<<IEEE80211_CIPHER_NONE;
 305         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 306         if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
 307                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 308                 return -1;
 309         }
 310
 311         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 312                    __func__, params->wpa_key_mgmt);
 313         if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
 314                           params->wpa_key_mgmt)) {
 315                 printf("Unable to set key management algorithms to 0x%x\n",
 316                         params->wpa_key_mgmt);
 317                 return -1;
 318         }
 319
 320         v = 0;
 321         if (params->rsn_preauth)
 322                 v |= BIT(0);
 323         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 324                    __func__, params->rsn_preauth);
 325         if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
 326                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 327                 return -1;
 328         }
 329
 330         wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
 331         if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
 332                 printf("Unable to set WPA to %u\n", params->wpa);
 333                 return -1;
 334         }
 335         return 0;
 336 }
 337
 338 static int
 339 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 340 {
 341         struct madwifi_driver_data *drv = priv;
 342
 343         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 344
 345         if (!params->enabled) {
 346                 /* XXX restore state */
 347                 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 348                                   IEEE80211_AUTH_AUTO) < 0)
 349                         return -1;
 350                 /* IEEE80211_AUTH_AUTO ends up enabling Privacy; clear that */
 351                 return madwifi_set_privacy(drv, 0);
 352         }
 353         if (!params->wpa && !params->ieee802_1x) {
 354                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 355                         HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
 356                 return -1;
 357         }
 358         if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
 359                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 360                         HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
 361                 return -1;
 362         }
 363         if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 364                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 365                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 366                         HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
 367                 return -1;
 368         }
 369
 370         return 0;
 371 }
 372
 373 static int
 374 madwifi_set_privacy(void *priv, int enabled)
 375 {
 376         struct madwifi_driver_data *drv = priv;
 377
 378         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 379
 380         return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
 381 }
 382
 383 static int
 384 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
 385 {
 386         struct madwifi_driver_data *drv = priv;
 387         struct ieee80211req_mlme mlme;
 388         int ret;
 389
 390         wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
 391                    __func__, ether_sprintf(addr), authorized);
 392
 393         if (authorized)
 394                 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
 395         else
 396                 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
 397         mlme.im_reason = 0;
 398         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 399         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 400         if (ret < 0) {
 401                 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
 402                            __func__, authorized ? "" : "un", MAC2STR(addr));
 403         }
 404
 405         return ret;
 406 }
 407
 408 static int
 409 madwifi_sta_set_flags(void *priv, const u8 *addr,
 410                       int total_flags, int flags_or, int flags_and)
 411 {
 412         /* For now, only support setting Authorized flag */
 413         if (flags_or & WPA_STA_AUTHORIZED)
 414                 return madwifi_set_sta_authorized(priv, addr, 1);
 415         if (!(flags_and & WPA_STA_AUTHORIZED))
 416                 return madwifi_set_sta_authorized(priv, addr, 0);
 417         return 0;
 418 }
 419
 420 static int
 421 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
 422 {
 423         struct madwifi_driver_data *drv = priv;
 424         struct ieee80211req_del_key wk;
 425         int ret;
 426
 427         wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
 428                    __func__, ether_sprintf(addr), key_idx);
 429
 430         memset(&wk, 0, sizeof(wk));
 431         if (addr != NULL) {
 432                 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 433                 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
 434         } else {
 435                 wk.idk_keyix = key_idx;
 436         }
 437
 438         ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
 439         if (ret < 0) {
 440                 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
 441                            " key_idx %d)", __func__, ether_sprintf(addr),
 442                            key_idx);
 443         }
 444
 445         return ret;
 446 }
 447
 448 static int
 449 madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 450                 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
 451                 size_t seq_len, const u8 *key, size_t key_len)
 452 {
 453         struct madwifi_driver_data *drv = priv;
 454         struct ieee80211req_key wk;
 455         u_int8_t cipher;
 456         int ret;
 457
 458         if (alg == WPA_ALG_NONE)
 459                 return madwifi_del_key(drv, addr, key_idx);
 460
 461         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
 462                    __func__, alg, ether_sprintf(addr), key_idx);
 463
 464         switch (alg) {
 465         case WPA_ALG_WEP:
 466                 cipher = IEEE80211_CIPHER_WEP;
 467                 break;
 468         case WPA_ALG_TKIP:
 469                 cipher = IEEE80211_CIPHER_TKIP;
 470                 break;
 471         case WPA_ALG_CCMP:
 472                 cipher = IEEE80211_CIPHER_AES_CCM;
 473                 break;
 474         default:
 475                 printf("%s: unknown/unsupported algorithm %d\n",
 476                         __func__, alg);
 477                 return -1;
 478         }
 479
 480         if (key_len > sizeof(wk.ik_keydata)) {
 481                 printf("%s: key length %lu too big\n", __func__,
 482                        (unsigned long) key_len);
 483                 return -3;
 484         }
 485
 486         memset(&wk, 0, sizeof(wk));
 487         wk.ik_type = cipher;
 488         wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
 489         if (addr == NULL) {
 490                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 491                 wk.ik_keyix = key_idx;
 492                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 493         } else {
 494                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 495                 wk.ik_keyix = IEEE80211_KEYIX_NONE;
 496         }
 497         wk.ik_keylen = key_len;
 498         memcpy(wk.ik_keydata, key, key_len);
 499
 500         ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
 501         if (ret < 0) {
 502                 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
 503                            " key_idx %d alg %d key_len %lu set_tx %d)",
 504                            __func__, ether_sprintf(wk.ik_macaddr), key_idx,
 505                            alg, (unsigned long) key_len, set_tx);
 506         }
 507
 508         return ret;
 509 }
 510
 511
 512 static int
 513 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 514                    u8 *seq)
 515 {
 516         struct madwifi_driver_data *drv = priv;
 517         struct ieee80211req_key wk;
 518
 519         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 520                    __func__, ether_sprintf(addr), idx);
 521
 522         memset(&wk, 0, sizeof(wk));
 523         if (addr == NULL)
 524                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 525         else
 526                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 527         wk.ik_keyix = idx;
 528
 529         if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
 530                 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
 531                            "(addr " MACSTR " key_idx %d)",
 532                            __func__, MAC2STR(wk.ik_macaddr), idx);
 533                 return -1;
 534         }
 535
 536 #ifdef WORDS_BIGENDIAN
 537         {
 538                 /*
 539                  * wk.ik_keytsc is in host byte order (big endian), need to
 540                  * swap it to match with the byte order used in WPA.
 541                  */
 542                 int i;
 543 #ifndef WPA_KEY_RSC_LEN
 544 #define WPA_KEY_RSC_LEN 8
 545 #endif
 546                 u8 tmp[WPA_KEY_RSC_LEN];
 547                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 548                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 549                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 550                 }
 551         }
 552 #else /* WORDS_BIGENDIAN */
 553         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 554 #endif /* WORDS_BIGENDIAN */
 555         return 0;
 556 }
 557
 558
 559 static int
 560 madwifi_flush(void *priv)
 561 {
 562         u8 allsta[IEEE80211_ADDR_LEN];
 563         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 564         return madwifi_sta_deauth(priv, NULL, allsta,
 565                                   IEEE80211_REASON_AUTH_LEAVE);
 566 }
 567
 568
 569 static int
 570 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 571                              const u8 *addr)
 572 {
 573         struct madwifi_driver_data *drv = priv;
 574         struct ieee80211req_sta_stats stats;
 575
 576         memset(data, 0, sizeof(*data));
 577
 578         /*
 579          * Fetch statistics for station from the system.
 580          */
 581         memset(&stats, 0, sizeof(stats));
 582         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 583         if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
 584                          &stats, sizeof(stats))) {
 585                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 586                            MACSTR ")", __func__, MAC2STR(addr));
 587                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 588                         memcpy(data, &drv->acct_data, sizeof(*data));
 589                         return 0;
 590                 }
 591
 592                 printf("Failed to get station stats information element.\n");
 593                 return -1;
 594         }
 595
 596         data->rx_packets = stats.is_stats.ns_rx_data;
 597         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 598         data->tx_packets = stats.is_stats.ns_tx_data;
 599         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 600         return 0;
 601 }
 602
 603
 604 static int
 605 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 606 {
 607         struct madwifi_driver_data *drv = priv;
 608         struct ieee80211req_mlme mlme;
 609         int ret;
 610
 611         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 612
 613         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 614         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 615         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 616                            sizeof(mlme));
 617         if (ret < 0) {
 618                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 619                            MACSTR ")", __func__, MAC2STR(addr));
 620         }
 621
 622         return ret;
 623 }
 624
 625
 626 static int
 627 madwifi_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
 628 {
 629         /*
 630          * Do nothing; we setup parameters at startup that define the
 631          * contents of the beacon information element.
 632          */
 633         return 0;
 634 }
 635
 636 static int
 637 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 638                    int reason_code)
 639 {
 640         struct madwifi_driver_data *drv = priv;
 641         struct ieee80211req_mlme mlme;
 642         int ret;
 643
 644         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 645                    __func__, ether_sprintf(addr), reason_code);
 646
 647         mlme.im_op = IEEE80211_MLME_DEAUTH;
 648         mlme.im_reason = reason_code;
 649         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 650         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 651         if (ret < 0) {
 652                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 653                            " reason %d)",
 654                            __func__, MAC2STR(addr), reason_code);
 655         }
 656
 657         return ret;
 658 }
 659
 660 static int
 661 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 662                      int reason_code)
 663 {
 664         struct madwifi_driver_data *drv = priv;
 665         struct ieee80211req_mlme mlme;
 666         int ret;
 667
 668         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 669                    __func__, ether_sprintf(addr), reason_code);
 670
 671         mlme.im_op = IEEE80211_MLME_DISASSOC;
 672         mlme.im_reason = reason_code;
 673         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 674         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 675         if (ret < 0) {
 676                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 677                            MACSTR " reason %d)",
 678                            __func__, MAC2STR(addr), reason_code);
 679         }
 680
 681         return ret;
 682 }
 683
 684 #ifdef CONFIG_WPS
 685 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 686                                 size_t len)
 687 {
 688         struct madwifi_driver_data *drv = ctx;
 689         const struct ieee80211_mgmt *mgmt;
 690         u16 fc;
 691         union wpa_event_data event;
 692
 693         /* Send Probe Request information to WPS processing */
 694
 695         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 696                 return;
 697         mgmt = (const struct ieee80211_mgmt *) buf;
 698
 699         fc = le_to_host16(mgmt->frame_control);
 700         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 701             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 702                 return;
 703
 704         os_memset(&event, 0, sizeof(event));
 705         event.rx_probe_req.sa = mgmt->sa;
 706         event.rx_probe_req.ie = mgmt->u.probe_req.variable;
 707         event.rx_probe_req.ie_len =
 708                 len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 709         wpa_supplicant_event(drv->hapd, EVENT_RX_PROBE_REQ, &event);
 710 }
 711 #endif /* CONFIG_WPS */
 712
 713 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 714 {
 715         int ret = 0;
 716 #ifdef CONFIG_WPS
 717         struct ieee80211req_set_filter filt;
 718
 719         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 720         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 721
 722         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 723                            sizeof(struct ieee80211req_set_filter));
 724         if (ret)
 725                 return ret;
 726
 727         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 728                                        madwifi_raw_receive, drv, 1);
 729         if (drv->sock_raw == NULL)
 730                 return -1;
 731 #endif /* CONFIG_WPS */
 732         return ret;
 733 }
 734
 735 #ifdef CONFIG_WPS
 736 static int
 737 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 738 {
 739         struct madwifi_driver_data *drv = priv;
 740         u8 buf[500];
 741         struct ieee80211req_getset_appiebuf *beac_ie;
 742
 743         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 744                    (unsigned long) len);
 745
 746         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 747         beac_ie->app_frmtype = frametype;
 748         beac_ie->app_buflen = len;
 749         memcpy(&(beac_ie->app_buf[0]), ie, len);
 750
 751         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 752                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 753 }
 754
 755 static int
 756 madwifi_set_ap_wps_ie(void *priv, const struct wpabuf *beacon,
 757                       const struct wpabuf *proberesp,
 758                       const struct wpabuf *assocresp)
 759 {
 760         madwifi_set_wps_ie(priv, assocresp ? wpabuf_head(assocresp) : NULL,
 761                            assocresp ? wpabuf_len(assocresp) : 0,
 762                            IEEE80211_APPIE_FRAME_ASSOC_RESP);
 763         if (madwifi_set_wps_ie(priv, beacon ? wpabuf_head(beacon) : NULL,
 764                                beacon ? wpabuf_len(beacon) : 0,
 765                                IEEE80211_APPIE_FRAME_BEACON))
 766                 return -1;
 767         return madwifi_set_wps_ie(priv,
 768                                   proberesp ? wpabuf_head(proberesp) : NULL,
 769                                   proberesp ? wpabuf_len(proberesp): 0,
 770                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 771 }
 772 #else /* CONFIG_WPS */
 773 #define madwifi_set_ap_wps_ie NULL
 774 #endif /* CONFIG_WPS */
 775
 776 static void
 777 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 778 {
 779         struct hostapd_data *hapd = drv->hapd;
 780         struct ieee80211req_wpaie ie;
 781         int ielen = 0;
 782         u8 *iebuf = NULL;
 783
 784         /*
 785          * Fetch negotiated WPA/RSN parameters from the system.
 786          */
 787         memset(&ie, 0, sizeof(ie));
 788         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 789         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 790                 /*
 791                  * See ATH_WPS_IE comment in the beginning of the file for a
 792                  * possible cause for the failure..
 793                  */
 794                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
 795                            __func__, strerror(errno));
 796                 goto no_ie;
 797         }
 798         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 799                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 800         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 801                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 802         iebuf = ie.wpa_ie;
 803         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 804          * Assume the IE was not included if the IE type is unknown. */
 805         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 806                 iebuf[1] = 0;
 807         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 808                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 809                  * set. This is needed for WPA2. */
 810                 iebuf = ie.rsn_ie;
 811                 if (iebuf[0] != WLAN_EID_RSN)
 812                         iebuf[1] = 0;
 813         }
 814
 815         ielen = iebuf[1];
 816         if (ielen == 0)
 817                 iebuf = NULL;
 818         else
 819                 ielen += 2;
 820
 821 no_ie:
 822         drv_event_assoc(hapd, addr, iebuf, ielen);
 823
 824         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 825                 /* Cached accounting data is not valid anymore. */
 826                 memset(drv->acct_mac, 0, ETH_ALEN);
 827                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 828         }
 829 }
 830
 831 static void
 832 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 833                                        char *custom, char *end)
 834 {
 835         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 836
 837         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 838                 char *pos;
 839                 u8 addr[ETH_ALEN];
 840                 pos = strstr(custom, "addr=");
 841                 if (pos == NULL) {
 842                         wpa_printf(MSG_DEBUG,
 843                                    "MLME-MICHAELMICFAILURE.indication "
 844                                    "without sender address ignored");
 845                         return;
 846                 }
 847                 pos += 5;
 848                 if (hwaddr_aton(pos, addr) == 0) {
 849                         union wpa_event_data data;
 850                         os_memset(&data, 0, sizeof(data));
 851                         data.michael_mic_failure.unicast = 1;
 852                         data.michael_mic_failure.src = addr;
 853                         wpa_supplicant_event(drv->hapd,
 854                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 855                 } else {
 856                         wpa_printf(MSG_DEBUG,
 857                                    "MLME-MICHAELMICFAILURE.indication "
 858                                    "with invalid MAC address");
 859                 }
 860         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 861                 char *key, *value;
 862                 u32 val;
 863                 key = custom;
 864                 while ((key = strchr(key, '\n')) != NULL) {
 865                         key++;
 866                         value = strchr(key, '=');
 867                         if (value == NULL)
 868                                 continue;
 869                         *value++ = '\0';
 870                         val = strtoul(value, NULL, 10);
 871                         if (strcmp(key, "mac") == 0)
 872                                 hwaddr_aton(value, drv->acct_mac);
 873                         else if (strcmp(key, "rx_packets") == 0)
 874                                 drv->acct_data.rx_packets = val;
 875                         else if (strcmp(key, "tx_packets") == 0)
 876                                 drv->acct_data.tx_packets = val;
 877                         else if (strcmp(key, "rx_bytes") == 0)
 878                                 drv->acct_data.rx_bytes = val;
 879                         else if (strcmp(key, "tx_bytes") == 0)
 880                                 drv->acct_data.tx_bytes = val;
 881                         key = value;
 882                 }
 883 #ifdef CONFIG_WPS
 884         } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
 885                 /* Some atheros kernels send push button as a wireless event */
 886                 /* PROBLEM! this event is received for ALL BSSs ...
 887                  * so all are enabled for WPS... ugh.
 888                  */
 889                 wpa_supplicant_event(drv->hapd, EVENT_WPS_BUTTON_PUSHED, NULL);
 890         } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
 891                 /*
 892                  * Atheros driver uses a hack to pass Probe Request frames as a
 893                  * binary data in the custom wireless event. The old way (using
 894                  * packet sniffing) didn't work when bridging.
 895                  * Format: "Manage.prob_req <frame len>" | zero padding | frame
 896                  */
 897 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
 898                 int len = atoi(custom + 16);
 899                 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
 900                         wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
 901                                    "length %d", len);
 902                         return;
 903                 }
 904                 madwifi_raw_receive(drv, NULL,
 905                                     (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
 906 #endif /* CONFIG_WPS */
 907         }
 908 }
 909
 910 static void
 911 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 912                                 char *data, int len)
 913 {
 914         struct iw_event iwe_buf, *iwe = &iwe_buf;
 915         char *pos, *end, *custom, *buf;
 916
 917         pos = data;
 918         end = data + len;
 919
 920         while (pos + IW_EV_LCP_LEN <= end) {
 921                 /* Event data may be unaligned, so make a local, aligned copy
 922                  * before processing. */
 923                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 924                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 925                            iwe->cmd, iwe->len);
 926                 if (iwe->len <= IW_EV_LCP_LEN)
 927                         return;
 928
 929                 custom = pos + IW_EV_POINT_LEN;
 930                 if (drv->we_version > 18 &&
 931                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 932                      iwe->cmd == IWEVASSOCREQIE ||
 933                      iwe->cmd == IWEVCUSTOM)) {
 934                         /* WE-19 removed the pointer from struct iw_point */
 935                         char *dpos = (char *) &iwe_buf.u.data.length;
 936                         int dlen = dpos - (char *) &iwe_buf;
 937                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 938                                sizeof(struct iw_event) - dlen);
 939                 } else {
 940                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 941                         custom += IW_EV_POINT_OFF;
 942                 }
 943
 944                 switch (iwe->cmd) {
 945                 case IWEVEXPIRED:
 946                         drv_event_disassoc(drv->hapd,
 947                                            (u8 *) iwe->u.addr.sa_data);
 948                         break;
 949                 case IWEVREGISTERED:
 950                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 951                         break;
 952                 case IWEVASSOCREQIE:
 953                         /* Driver hack.. Use IWEVASSOCREQIE to bypass
 954                          * IWEVCUSTOM size limitations. Need to handle this
 955                          * just like IWEVCUSTOM.
 956                          */
 957                 case IWEVCUSTOM:
 958                         if (custom + iwe->u.data.length > end)
 959                                 return;
 960                         buf = malloc(iwe->u.data.length + 1);
 961                         if (buf == NULL)
 962                                 return;         /* XXX */
 963                         memcpy(buf, custom, iwe->u.data.length);
 964                         buf[iwe->u.data.length] = '\0';
 965                         madwifi_wireless_event_wireless_custom(
 966                                 drv, buf, buf + iwe->u.data.length);
 967                         free(buf);
 968                         break;
 969                 }
 970
 971                 pos += iwe->len;
 972         }
 973 }
 974
 975
 976 static void
 977 madwifi_wireless_event_rtm_newlink(void *ctx,
 978                                    struct ifinfomsg *ifi, u8 *buf, size_t len)
 979 {
 980         struct madwifi_driver_data *drv = ctx;
 981         int attrlen, rta_len;
 982         struct rtattr *attr;
 983
 984         if (ifi->ifi_index != drv->ifindex)
 985                 return;
 986
 987         attrlen = len;
 988         attr = (struct rtattr *) buf;
 989
 990         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 991         while (RTA_OK(attr, attrlen)) {
 992                 if (attr->rta_type == IFLA_WIRELESS) {
 993                         madwifi_wireless_event_wireless(
 994                                 drv, ((char *) attr) + rta_len,
 995                                 attr->rta_len - rta_len);
 996                 }
 997                 attr = RTA_NEXT(attr, attrlen);
 998         }
 999 }
1000
1001
1002 static int
1003 madwifi_get_we_version(struct madwifi_driver_data *drv)
1004 {
1005         struct iw_range *range;
1006         struct iwreq iwr;
1007         int minlen;
1008         size_t buflen;
1009
1010         drv->we_version = 0;
1011
1012         /*
1013          * Use larger buffer than struct iw_range in order to allow the
1014          * structure to grow in the future.
1015          */
1016         buflen = sizeof(struct iw_range) + 500;
1017         range = os_zalloc(buflen);
1018         if (range == NULL)
1019                 return -1;
1020
1021         memset(&iwr, 0, sizeof(iwr));
1022         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1023         iwr.u.data.pointer = (caddr_t) range;
1024         iwr.u.data.length = buflen;
1025
1026         minlen = ((char *) &range->enc_capa) - (char *) range +
1027                 sizeof(range->enc_capa);
1028
1029         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1030                 perror("ioctl[SIOCGIWRANGE]");
1031                 free(range);
1032                 return -1;
1033         } else if (iwr.u.data.length >= minlen &&
1034                    range->we_version_compiled >= 18) {
1035                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1036                            "WE(source)=%d enc_capa=0x%x",
1037                            range->we_version_compiled,
1038                            range->we_version_source,
1039                            range->enc_capa);
1040                 drv->we_version = range->we_version_compiled;
1041         }
1042
1043         free(range);
1044         return 0;
1045 }
1046
1047
1048 static int
1049 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1050 {
1051         struct netlink_config *cfg;
1052
1053         madwifi_get_we_version(drv);
1054
1055         cfg = os_zalloc(sizeof(*cfg));
1056         if (cfg == NULL)
1057                 return -1;
1058         cfg->ctx = drv;
1059         cfg->newlink_cb = madwifi_wireless_event_rtm_newlink;
1060         drv->netlink = netlink_init(cfg);
1061         if (drv->netlink == NULL) {
1062                 os_free(cfg);
1063                 return -1;
1064         }
1065
1066         return 0;
1067 }
1068
1069
1070 static int
1071 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1072                    int encrypt, const u8 *own_addr)
1073 {
1074         struct madwifi_driver_data *drv = priv;
1075         unsigned char buf[3000];
1076         unsigned char *bp = buf;
1077         struct l2_ethhdr *eth;
1078         size_t len;
1079         int status;
1080
1081         /*
1082          * Prepend the Ethernet header.  If the caller left us
1083          * space at the front we could just insert it but since
1084          * we don't know we copy to a local buffer.  Given the frequency
1085          * and size of frames this probably doesn't matter.
1086          */
1087         len = data_len + sizeof(struct l2_ethhdr);
1088         if (len > sizeof(buf)) {
1089                 bp = malloc(len);
1090                 if (bp == NULL) {
1091                         printf("EAPOL frame discarded, cannot malloc temp "
1092                                "buffer of size %lu!\n", (unsigned long) len);
1093                         return -1;
1094                 }
1095         }
1096         eth = (struct l2_ethhdr *) bp;
1097         memcpy(eth->h_dest, addr, ETH_ALEN);
1098         memcpy(eth->h_source, own_addr, ETH_ALEN);
1099         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1100         memcpy(eth+1, data, data_len);
1101
1102         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1103
1104         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1105
1106         if (bp != buf)
1107                 free(bp);
1108         return status;
1109 }
1110
1111 static void
1112 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1113 {
1114         struct madwifi_driver_data *drv = ctx;
1115         drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
1116                            len - sizeof(struct l2_ethhdr));
1117 }
1118
1119 static void *
1120 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1121 {
1122         struct madwifi_driver_data *drv;
1123         struct ifreq ifr;
1124         struct iwreq iwr;
1125         char brname[IFNAMSIZ];
1126
1127         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1128         if (drv == NULL) {
1129                 printf("Could not allocate memory for madwifi driver data\n");
1130                 return NULL;
1131         }
1132
1133         drv->hapd = hapd;
1134         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1135         if (drv->ioctl_sock < 0) {
1136                 perror("socket[PF_INET,SOCK_DGRAM]");
1137                 goto bad;
1138         }
1139         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1140
1141         memset(&ifr, 0, sizeof(ifr));
1142         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1143         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1144                 perror("ioctl(SIOCGIFINDEX)");
1145                 goto bad;
1146         }
1147         drv->ifindex = ifr.ifr_ifindex;
1148
1149         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1150                                         handle_read, drv, 1);
1151         if (drv->sock_xmit == NULL)
1152                 goto bad;
1153         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1154                 goto bad;
1155         if (params->bridge[0]) {
1156                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1157                            params->bridge[0]);
1158                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1159                                                 ETH_P_EAPOL, handle_read, drv,
1160                                                 1);
1161                 if (drv->sock_recv == NULL)
1162                         goto bad;
1163         } else if (linux_br_get(brname, drv->iface) == 0) {
1164                 wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
1165                            "EAPOL receive", brname);
1166                 drv->sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
1167                                                 handle_read, drv, 1);
1168                 if (drv->sock_recv == NULL)
1169                         goto bad;
1170         } else
1171                 drv->sock_recv = drv->sock_xmit;
1172
1173         memset(&iwr, 0, sizeof(iwr));
1174         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1175
1176         iwr.u.mode = IW_MODE_MASTER;
1177
1178         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1179                 perror("ioctl[SIOCSIWMODE]");
1180                 printf("Could not set interface to master mode!\n");
1181                 goto bad;
1182         }
1183
1184         /* mark down during setup */
1185         linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1186         madwifi_set_privacy(drv, 0); /* default to no privacy */
1187
1188         madwifi_receive_probe_req(drv);
1189
1190         if (madwifi_wireless_event_init(drv))
1191                 goto bad;
1192
1193         return drv;
1194 bad:
1195         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1196                 l2_packet_deinit(drv->sock_recv);
1197         if (drv->sock_xmit != NULL)
1198                 l2_packet_deinit(drv->sock_xmit);
1199         if (drv->ioctl_sock >= 0)
1200                 close(drv->ioctl_sock);
1201         if (drv != NULL)
1202                 free(drv);
1203         return NULL;
1204 }
1205
1206
1207 static void
1208 madwifi_deinit(void *priv)
1209 {
1210         struct madwifi_driver_data *drv = priv;
1211
1212         netlink_deinit(drv->netlink);
1213         (void) linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1214         if (drv->ioctl_sock >= 0)
1215                 close(drv->ioctl_sock);
1216         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1217                 l2_packet_deinit(drv->sock_recv);
1218         if (drv->sock_xmit != NULL)
1219                 l2_packet_deinit(drv->sock_xmit);
1220         if (drv->sock_raw)
1221                 l2_packet_deinit(drv->sock_raw);
1222         free(drv);
1223 }
1224
1225 static int
1226 madwifi_set_ssid(void *priv, const u8 *buf, int len)
1227 {
1228         struct madwifi_driver_data *drv = priv;
1229         struct iwreq iwr;
1230
1231         memset(&iwr, 0, sizeof(iwr));
1232         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1233         iwr.u.essid.flags = 1; /* SSID active */
1234         iwr.u.essid.pointer = (caddr_t) buf;
1235         iwr.u.essid.length = len + 1;
1236
1237         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1238                 perror("ioctl[SIOCSIWESSID]");
1239                 printf("len=%d\n", len);
1240                 return -1;
1241         }
1242         return 0;
1243 }
1244
1245 static int
1246 madwifi_get_ssid(void *priv, u8 *buf, int len)
1247 {
1248         struct madwifi_driver_data *drv = priv;
1249         struct iwreq iwr;
1250         int ret = 0;
1251
1252         memset(&iwr, 0, sizeof(iwr));
1253         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1254         iwr.u.essid.pointer = (caddr_t) buf;
1255         iwr.u.essid.length = len;
1256
1257         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1258                 perror("ioctl[SIOCGIWESSID]");
1259                 ret = -1;
1260         } else
1261                 ret = iwr.u.essid.length;
1262
1263         return ret;
1264 }
1265
1266 static int
1267 madwifi_set_countermeasures(void *priv, int enabled)
1268 {
1269         struct madwifi_driver_data *drv = priv;
1270         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1271         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1272 }
1273
1274 static int
1275 madwifi_commit(void *priv)
1276 {
1277         struct madwifi_driver_data *drv = priv;
1278         return linux_set_iface_flags(drv->ioctl_sock, drv->iface, 1);
1279 }
1280
1281 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1282         .name                   = "atheros",
1283         .hapd_init              = madwifi_init,
1284         .hapd_deinit            = madwifi_deinit,
1285         .set_ieee8021x          = madwifi_set_ieee8021x,
1286         .set_privacy            = madwifi_set_privacy,
1287         .set_key                = madwifi_set_key,
1288         .get_seqnum             = madwifi_get_seqnum,
1289         .flush                  = madwifi_flush,
1290         .set_generic_elem       = madwifi_set_opt_ie,
1291         .sta_set_flags          = madwifi_sta_set_flags,
1292         .read_sta_data          = madwifi_read_sta_driver_data,
1293         .hapd_send_eapol        = madwifi_send_eapol,
1294         .sta_disassoc           = madwifi_sta_disassoc,
1295         .sta_deauth             = madwifi_sta_deauth,
1296         .hapd_set_ssid          = madwifi_set_ssid,
1297         .hapd_get_ssid          = madwifi_get_ssid,
1298         .set_countermeasures    = madwifi_set_countermeasures,
1299         .sta_clear_stats        = madwifi_sta_clear_stats,
1300         .commit                 = madwifi_commit,
1301         .set_ap_wps_ie          = madwifi_set_ap_wps_ie,
1302 };