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 #include <net80211/ieee80211.h>
  32 #include <net80211/_ieee80211.h>
  33 #include <net80211/ieee80211_crypto.h>
  34
  35 /*
  36  * Note, the ATH_WPS_IE setting must match with the driver build.. If the
  37  * driver does not include this, the IEEE80211_IOCTL_GETWPAIE ioctl will fail.
  38  */
  39 #define ATH_WPS_IE
  40 #include <net80211/ieee80211_ioctl.h>
  41
  42 #ifdef CONFIG_WPS
  43 #ifdef IEEE80211_IOCTL_FILTERFRAME
  44 #include <netpacket/packet.h>
  45
  46 #ifndef ETH_P_80211_RAW
  47 #define ETH_P_80211_RAW 0x0019
  48 #endif
  49 #endif /* IEEE80211_IOCTL_FILTERFRAME */
  50 #endif /* CONFIG_WPS */
  51
  52 /*
  53  * Avoid conflicts with hostapd definitions by undefining couple of defines
  54  * from madwifi header files.
  55  */
  56 #undef WPA_OUI_TYPE
  57 #undef WME_OUI_TYPE
  58
  59 #include "wireless_copy.h"
  60
  61 #include "driver.h"
  62 #include "eloop.h"
  63 #include "priv_netlink.h"
  64 #include "l2_packet/l2_packet.h"
  65 #include "common/ieee802_11_defs.h"
  66 #include "netlink.h"
  67
  68
  69 struct madwifi_driver_data {
  70         struct hostapd_data *hapd;              /* back pointer */
  71
  72         char    iface[IFNAMSIZ + 1];
  73         int     ifindex;
  74         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
  75         struct l2_packet_data *sock_recv;       /* raw packet recv socket */
  76         int     ioctl_sock;                     /* socket for ioctl() use */
  77         struct netlink_data *netlink;
  78         int     we_version;
  79         u8      acct_mac[ETH_ALEN];
  80         struct hostap_sta_driver_data acct_data;
  81
  82         struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
  83 };
  84
  85 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
  86                               int reason_code);
  87
  88 static int
  89 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
  90 {
  91         struct iwreq iwr;
  92         int do_inline = len < IFNAMSIZ;
  93
  94         /* Certain ioctls must use the non-inlined method */
  95         if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
  96             op == IEEE80211_IOCTL_FILTERFRAME)
  97                 do_inline = 0;
  98
  99         memset(&iwr, 0, sizeof(iwr));
 100         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 101         if (do_inline) {
 102                 /*
 103                  * Argument data fits inline; put it there.
 104                  */
 105                 memcpy(iwr.u.name, data, len);
 106         } else {
 107                 /*
 108                  * Argument data too big for inline transfer; setup a
 109                  * parameter block instead; the kernel will transfer
 110                  * the data for the driver.
 111                  */
 112                 iwr.u.data.pointer = data;
 113                 iwr.u.data.length = len;
 114         }
 115
 116         if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
 117                 int first = IEEE80211_IOCTL_SETPARAM;
 118                 static const char *opnames[] = {
 119                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 120                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 121                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 122                         "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
 123                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 124                         "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
 125                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 126                         "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
 127                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 128                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 129                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 130                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 131                         "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
 132                         "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
 133                         "ioctl[IEEE80211_IOCTL_KICKMAC]",
 134                         "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
 135                         "ioctl[IEEE80211_IOCTL_GETMODE]",
 136                         "ioctl[IEEE80211_IOCTL_SETMODE]",
 137                         "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
 138                         "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
 139                         NULL,
 140                         "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
 141                 };
 142                 int idx = op - first;
 143                 if (first <= op &&
 144                     idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
 145                     opnames[idx])
 146                         perror(opnames[idx]);
 147                 else {
 148                         perror("ioctl[unknown???]");
 149                         wpa_printf(MSG_DEBUG, "Failed ioctl: 0x%x", op);
 150                 }
 151                 return -1;
 152         }
 153         return 0;
 154 }
 155
 156 static int
 157 set80211param(struct madwifi_driver_data *drv, int op, int arg)
 158 {
 159         struct iwreq iwr;
 160
 161         memset(&iwr, 0, sizeof(iwr));
 162         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 163         iwr.u.mode = op;
 164         memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
 165
 166         if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 167                 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 168                 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
 169                            "arg %d)", __func__, op, arg);
 170                 return -1;
 171         }
 172         return 0;
 173 }
 174
 175 #ifndef CONFIG_NO_STDOUT_DEBUG
 176 static const char *
 177 ether_sprintf(const u8 *addr)
 178 {
 179         static char buf[sizeof(MACSTR)];
 180
 181         if (addr != NULL)
 182                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 183         else
 184                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 185         return buf;
 186 }
 187 #endif /* CONFIG_NO_STDOUT_DEBUG */
 188
 189 /*
 190  * Configure WPA parameters.
 191  */
 192 static int
 193 madwifi_configure_wpa(struct madwifi_driver_data *drv,
 194                       struct wpa_bss_params *params)
 195 {
 196         int v;
 197
 198         switch (params->wpa_group) {
 199         case WPA_CIPHER_CCMP:
 200                 v = IEEE80211_CIPHER_AES_CCM;
 201                 break;
 202         case WPA_CIPHER_TKIP:
 203                 v = IEEE80211_CIPHER_TKIP;
 204                 break;
 205         case WPA_CIPHER_WEP104:
 206                 v = IEEE80211_CIPHER_WEP;
 207                 break;
 208         case WPA_CIPHER_WEP40:
 209                 v = IEEE80211_CIPHER_WEP;
 210                 break;
 211         case WPA_CIPHER_NONE:
 212                 v = IEEE80211_CIPHER_NONE;
 213                 break;
 214         default:
 215                 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
 216                            params->wpa_group);
 217                 return -1;
 218         }
 219         wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
 220         if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
 221                 printf("Unable to set group key cipher to %u\n", v);
 222                 return -1;
 223         }
 224         if (v == IEEE80211_CIPHER_WEP) {
 225                 /* key length is done only for specific ciphers */
 226                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 227                 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
 228                         printf("Unable to set group key length to %u\n", v);
 229                         return -1;
 230                 }
 231         }
 232
 233         v = 0;
 234         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 235                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 236         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 237                 v |= 1<<IEEE80211_CIPHER_TKIP;
 238         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 239                 v |= 1<<IEEE80211_CIPHER_NONE;
 240         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 241         if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
 242                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 243                 return -1;
 244         }
 245
 246         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 247                    __func__, params->wpa_key_mgmt);
 248         if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
 249                           params->wpa_key_mgmt)) {
 250                 printf("Unable to set key management algorithms to 0x%x\n",
 251                         params->wpa_key_mgmt);
 252                 return -1;
 253         }
 254
 255         v = 0;
 256         if (params->rsn_preauth)
 257                 v |= BIT(0);
 258         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 259                    __func__, params->rsn_preauth);
 260         if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
 261                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 262                 return -1;
 263         }
 264
 265         wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
 266         if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
 267                 printf("Unable to set WPA to %u\n", params->wpa);
 268                 return -1;
 269         }
 270         return 0;
 271 }
 272
 273
 274 static int
 275 madwifi_set_iface_flags(void *priv, int dev_up)
 276 {
 277         struct madwifi_driver_data *drv = priv;
 278         struct ifreq ifr;
 279
 280         wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
 281
 282         if (drv->ioctl_sock < 0)
 283                 return -1;
 284
 285         memset(&ifr, 0, sizeof(ifr));
 286         os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
 287
 288         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
 289                 perror("ioctl[SIOCGIFFLAGS]");
 290                 return -1;
 291         }
 292
 293         if (dev_up)
 294                 ifr.ifr_flags |= IFF_UP;
 295         else
 296                 ifr.ifr_flags &= ~IFF_UP;
 297
 298         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
 299                 perror("ioctl[SIOCSIFFLAGS]");
 300                 return -1;
 301         }
 302
 303         return 0;
 304 }
 305
 306 static int
 307 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 308 {
 309         struct madwifi_driver_data *drv = priv;
 310
 311         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 312
 313         if (!params->enabled) {
 314                 /* XXX restore state */
 315                 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 316                         IEEE80211_AUTH_AUTO);
 317         }
 318         if (!params->wpa && !params->ieee802_1x) {
 319                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 320                         HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
 321                 return -1;
 322         }
 323         if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
 324                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 325                         HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
 326                 return -1;
 327         }
 328         if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 329                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 330                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 331                         HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
 332                 return -1;
 333         }
 334
 335         return 0;
 336 }
 337
 338 static int
 339 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
 340 {
 341         struct madwifi_driver_data *drv = priv;
 342
 343         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 344
 345         return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
 346 }
 347
 348 static int
 349 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
 350 {
 351         struct madwifi_driver_data *drv = priv;
 352         struct ieee80211req_mlme mlme;
 353         int ret;
 354
 355         wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
 356                    __func__, ether_sprintf(addr), authorized);
 357
 358         if (authorized)
 359                 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
 360         else
 361                 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
 362         mlme.im_reason = 0;
 363         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 364         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 365         if (ret < 0) {
 366                 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
 367                            __func__, authorized ? "" : "un", MAC2STR(addr));
 368         }
 369
 370         return ret;
 371 }
 372
 373 static int
 374 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
 375                       int flags_or, int flags_and)
 376 {
 377         /* For now, only support setting Authorized flag */
 378         if (flags_or & WPA_STA_AUTHORIZED)
 379                 return madwifi_set_sta_authorized(priv, addr, 1);
 380         if (!(flags_and & WPA_STA_AUTHORIZED))
 381                 return madwifi_set_sta_authorized(priv, addr, 0);
 382         return 0;
 383 }
 384
 385 static int
 386 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
 387 {
 388         struct madwifi_driver_data *drv = priv;
 389         struct ieee80211req_del_key wk;
 390         int ret;
 391
 392         wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
 393                    __func__, ether_sprintf(addr), key_idx);
 394
 395         memset(&wk, 0, sizeof(wk));
 396         if (addr != NULL) {
 397                 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 398                 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
 399         } else {
 400                 wk.idk_keyix = key_idx;
 401         }
 402
 403         ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
 404         if (ret < 0) {
 405                 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
 406                            " key_idx %d)", __func__, ether_sprintf(addr),
 407                            key_idx);
 408         }
 409
 410         return ret;
 411 }
 412
 413 static int
 414 madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 415                 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
 416                 size_t seq_len, const u8 *key, size_t key_len)
 417 {
 418         struct madwifi_driver_data *drv = priv;
 419         struct ieee80211req_key wk;
 420         u_int8_t cipher;
 421         int ret;
 422
 423         if (alg == WPA_ALG_NONE)
 424                 return madwifi_del_key(drv, addr, key_idx);
 425
 426         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
 427                    __func__, alg, ether_sprintf(addr), key_idx);
 428
 429         switch (alg) {
 430         case WPA_ALG_WEP:
 431                 cipher = IEEE80211_CIPHER_WEP;
 432                 break;
 433         case WPA_ALG_TKIP:
 434                 cipher = IEEE80211_CIPHER_TKIP;
 435                 break;
 436         case WPA_ALG_CCMP:
 437                 cipher = IEEE80211_CIPHER_AES_CCM;
 438                 break;
 439         default:
 440                 printf("%s: unknown/unsupported algorithm %d\n",
 441                         __func__, alg);
 442                 return -1;
 443         }
 444
 445         if (key_len > sizeof(wk.ik_keydata)) {
 446                 printf("%s: key length %lu too big\n", __func__,
 447                        (unsigned long) key_len);
 448                 return -3;
 449         }
 450
 451         memset(&wk, 0, sizeof(wk));
 452         wk.ik_type = cipher;
 453         wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
 454         if (addr == NULL) {
 455                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 456                 wk.ik_keyix = key_idx;
 457                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 458         } else {
 459                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 460                 wk.ik_keyix = IEEE80211_KEYIX_NONE;
 461         }
 462         wk.ik_keylen = key_len;
 463         memcpy(wk.ik_keydata, key, key_len);
 464
 465         ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
 466         if (ret < 0) {
 467                 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
 468                            " key_idx %d alg %d key_len %lu set_tx %d)",
 469                            __func__, ether_sprintf(wk.ik_macaddr), key_idx,
 470                            alg, (unsigned long) key_len, set_tx);
 471         }
 472
 473         return ret;
 474 }
 475
 476
 477 static int
 478 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 479                    u8 *seq)
 480 {
 481         struct madwifi_driver_data *drv = priv;
 482         struct ieee80211req_key wk;
 483
 484         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 485                    __func__, ether_sprintf(addr), idx);
 486
 487         memset(&wk, 0, sizeof(wk));
 488         if (addr == NULL)
 489                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 490         else
 491                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 492         wk.ik_keyix = idx;
 493
 494         if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
 495                 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
 496                            "(addr " MACSTR " key_idx %d)",
 497                            __func__, MAC2STR(wk.ik_macaddr), idx);
 498                 return -1;
 499         }
 500
 501 #ifdef WORDS_BIGENDIAN
 502         {
 503                 /*
 504                  * wk.ik_keytsc is in host byte order (big endian), need to
 505                  * swap it to match with the byte order used in WPA.
 506                  */
 507                 int i;
 508                 u8 tmp[WPA_KEY_RSC_LEN];
 509                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 510                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 511                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 512                 }
 513         }
 514 #else /* WORDS_BIGENDIAN */
 515         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 516 #endif /* WORDS_BIGENDIAN */
 517         return 0;
 518 }
 519
 520
 521 static int
 522 madwifi_flush(void *priv)
 523 {
 524         u8 allsta[IEEE80211_ADDR_LEN];
 525         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 526         return madwifi_sta_deauth(priv, NULL, allsta,
 527                                   IEEE80211_REASON_AUTH_LEAVE);
 528 }
 529
 530
 531 static int
 532 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 533                              const u8 *addr)
 534 {
 535         struct madwifi_driver_data *drv = priv;
 536         struct ieee80211req_sta_stats stats;
 537
 538         memset(data, 0, sizeof(*data));
 539
 540         /*
 541          * Fetch statistics for station from the system.
 542          */
 543         memset(&stats, 0, sizeof(stats));
 544         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 545         if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
 546                          &stats, sizeof(stats))) {
 547                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 548                            MACSTR ")", __func__, MAC2STR(addr));
 549                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 550                         memcpy(data, &drv->acct_data, sizeof(*data));
 551                         return 0;
 552                 }
 553
 554                 printf("Failed to get station stats information element.\n");
 555                 return -1;
 556         }
 557
 558         data->rx_packets = stats.is_stats.ns_rx_data;
 559         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 560         data->tx_packets = stats.is_stats.ns_tx_data;
 561         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 562         return 0;
 563 }
 564
 565
 566 static int
 567 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 568 {
 569         struct madwifi_driver_data *drv = priv;
 570         struct ieee80211req_mlme mlme;
 571         int ret;
 572
 573         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 574
 575         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 576         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 577         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 578                            sizeof(mlme));
 579         if (ret < 0) {
 580                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 581                            MACSTR ")", __func__, MAC2STR(addr));
 582         }
 583
 584         return ret;
 585 }
 586
 587
 588 static int
 589 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
 590 {
 591         /*
 592          * Do nothing; we setup parameters at startup that define the
 593          * contents of the beacon information element.
 594          */
 595         return 0;
 596 }
 597
 598 static int
 599 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 600                    int reason_code)
 601 {
 602         struct madwifi_driver_data *drv = priv;
 603         struct ieee80211req_mlme mlme;
 604         int ret;
 605
 606         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 607                    __func__, ether_sprintf(addr), reason_code);
 608
 609         mlme.im_op = IEEE80211_MLME_DEAUTH;
 610         mlme.im_reason = reason_code;
 611         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 612         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 613         if (ret < 0) {
 614                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 615                            " reason %d)",
 616                            __func__, MAC2STR(addr), reason_code);
 617         }
 618
 619         return ret;
 620 }
 621
 622 static int
 623 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 624                      int reason_code)
 625 {
 626         struct madwifi_driver_data *drv = priv;
 627         struct ieee80211req_mlme mlme;
 628         int ret;
 629
 630         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 631                    __func__, ether_sprintf(addr), reason_code);
 632
 633         mlme.im_op = IEEE80211_MLME_DISASSOC;
 634         mlme.im_reason = reason_code;
 635         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 636         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 637         if (ret < 0) {
 638                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 639                            MACSTR " reason %d)",
 640                            __func__, MAC2STR(addr), reason_code);
 641         }
 642
 643         return ret;
 644 }
 645
 646 #ifdef CONFIG_WPS
 647 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 648                                 size_t len)
 649 {
 650         struct madwifi_driver_data *drv = ctx;
 651         const struct ieee80211_mgmt *mgmt;
 652         u16 fc;
 653         union wpa_event_data event;
 654
 655         /* Send Probe Request information to WPS processing */
 656
 657         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 658                 return;
 659         mgmt = (const struct ieee80211_mgmt *) buf;
 660
 661         fc = le_to_host16(mgmt->frame_control);
 662         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 663             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 664                 return;
 665
 666         os_memset(&event, 0, sizeof(event));
 667         event.rx_probe_req.sa = mgmt->sa;
 668         event.rx_probe_req.ie = mgmt->u.probe_req.variable;
 669         event.rx_probe_req.ie_len =
 670                 len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 671         wpa_supplicant_event(drv->hapd, EVENT_RX_PROBE_REQ, &event);
 672 }
 673 #endif /* CONFIG_WPS */
 674
 675 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 676 {
 677         int ret = 0;
 678 #ifdef CONFIG_WPS
 679         struct ieee80211req_set_filter filt;
 680
 681         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 682         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 683
 684         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 685                            sizeof(struct ieee80211req_set_filter));
 686         if (ret)
 687                 return ret;
 688
 689         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 690                                        madwifi_raw_receive, drv, 1);
 691         if (drv->sock_raw == NULL)
 692                 return -1;
 693 #endif /* CONFIG_WPS */
 694         return ret;
 695 }
 696
 697 #ifdef CONFIG_WPS
 698 static int
 699 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 700 {
 701         struct madwifi_driver_data *drv = priv;
 702         u8 buf[256];
 703         struct ieee80211req_getset_appiebuf *beac_ie;
 704
 705         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 706                    (unsigned long) len);
 707
 708         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 709         beac_ie->app_frmtype = frametype;
 710         beac_ie->app_buflen = len;
 711         memcpy(&(beac_ie->app_buf[0]), ie, len);
 712
 713         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 714                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 715 }
 716
 717 static int
 718 madwifi_set_ap_wps_ie(const char *ifname, void *priv,
 719                       const struct wpabuf *beacon,
 720                       const struct wpabuf *proberesp)
 721 {
 722         if (madwifi_set_wps_ie(priv, beacon ? wpabuf_head(beacon) : NULL,
 723                                beacon ? wpabuf_len(beacon) : 0,
 724                                IEEE80211_APPIE_FRAME_BEACON))
 725                 return -1;
 726         return madwifi_set_wps_ie(priv,
 727                                   proberesp ? wpabuf_head(proberesp) : NULL,
 728                                   proberesp ? wpabuf_len(proberesp): 0,
 729                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 730 }
 731 #else /* CONFIG_WPS */
 732 #define madwifi_set_ap_wps_ie NULL
 733 #endif /* CONFIG_WPS */
 734
 735 static void
 736 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 737 {
 738         struct hostapd_data *hapd = drv->hapd;
 739         struct ieee80211req_wpaie ie;
 740         int ielen = 0;
 741         u8 *iebuf = NULL;
 742
 743         /*
 744          * Fetch negotiated WPA/RSN parameters from the system.
 745          */
 746         memset(&ie, 0, sizeof(ie));
 747         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 748         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 749                 /*
 750                  * See ATH_WPS_IE comment in the beginning of the file for a
 751                  * possible cause for the failure..
 752                  */
 753                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
 754                            __func__, strerror(errno));
 755                 goto no_ie;
 756         }
 757         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 758                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 759         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 760                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 761         iebuf = ie.wpa_ie;
 762         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 763          * Assume the IE was not included if the IE type is unknown. */
 764         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 765                 iebuf[1] = 0;
 766         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 767                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 768                  * set. This is needed for WPA2. */
 769                 iebuf = ie.rsn_ie;
 770                 if (iebuf[0] != WLAN_EID_RSN)
 771                         iebuf[1] = 0;
 772         }
 773
 774         ielen = iebuf[1];
 775         if (ielen == 0)
 776                 iebuf = NULL;
 777         else
 778                 ielen += 2;
 779
 780 no_ie:
 781         drv_event_assoc(hapd, addr, iebuf, ielen);
 782
 783         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 784                 /* Cached accounting data is not valid anymore. */
 785                 memset(drv->acct_mac, 0, ETH_ALEN);
 786                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 787         }
 788 }
 789
 790 static void
 791 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 792                                        char *custom, char *end)
 793 {
 794         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 795
 796         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 797                 char *pos;
 798                 u8 addr[ETH_ALEN];
 799                 pos = strstr(custom, "addr=");
 800                 if (pos == NULL) {
 801                         wpa_printf(MSG_DEBUG,
 802                                    "MLME-MICHAELMICFAILURE.indication "
 803                                    "without sender address ignored");
 804                         return;
 805                 }
 806                 pos += 5;
 807                 if (hwaddr_aton(pos, addr) == 0) {
 808                         union wpa_event_data data;
 809                         os_memset(&data, 0, sizeof(data));
 810                         data.michael_mic_failure.unicast = 1;
 811                         data.michael_mic_failure.src = addr;
 812                         wpa_supplicant_event(drv->hapd,
 813                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 814                 } else {
 815                         wpa_printf(MSG_DEBUG,
 816                                    "MLME-MICHAELMICFAILURE.indication "
 817                                    "with invalid MAC address");
 818                 }
 819         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 820                 char *key, *value;
 821                 u32 val;
 822                 key = custom;
 823                 while ((key = strchr(key, '\n')) != NULL) {
 824                         key++;
 825                         value = strchr(key, '=');
 826                         if (value == NULL)
 827                                 continue;
 828                         *value++ = '\0';
 829                         val = strtoul(value, NULL, 10);
 830                         if (strcmp(key, "mac") == 0)
 831                                 hwaddr_aton(value, drv->acct_mac);
 832                         else if (strcmp(key, "rx_packets") == 0)
 833                                 drv->acct_data.rx_packets = val;
 834                         else if (strcmp(key, "tx_packets") == 0)
 835                                 drv->acct_data.tx_packets = val;
 836                         else if (strcmp(key, "rx_bytes") == 0)
 837                                 drv->acct_data.rx_bytes = val;
 838                         else if (strcmp(key, "tx_bytes") == 0)
 839                                 drv->acct_data.tx_bytes = val;
 840                         key = value;
 841                 }
 842 #ifdef CONFIG_WPS
 843         } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
 844                 /* Some atheros kernels send push button as a wireless event */
 845                 /* PROBLEM! this event is received for ALL BSSs ...
 846                  * so all are enabled for WPS... ugh.
 847                  */
 848                 wpa_supplicant_event(drv->hapd, EVENT_WPS_BUTTON_PUSHED, NULL);
 849         } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
 850                 /*
 851                  * Atheros driver uses a hack to pass Probe Request frames as a
 852                  * binary data in the custom wireless event. The old way (using
 853                  * packet sniffing) didn't work when bridging.
 854                  * Format: "Manage.prob_req <frame len>" | zero padding | frame
 855                  */
 856 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
 857                 int len = atoi(custom + 16);
 858                 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
 859                         wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
 860                                    "length %d", len);
 861                         return;
 862                 }
 863                 madwifi_raw_receive(drv, NULL,
 864                                     (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
 865 #endif /* CONFIG_WPS */
 866         }
 867 }
 868
 869 static void
 870 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 871                                 char *data, int len)
 872 {
 873         struct iw_event iwe_buf, *iwe = &iwe_buf;
 874         char *pos, *end, *custom, *buf;
 875
 876         pos = data;
 877         end = data + len;
 878
 879         while (pos + IW_EV_LCP_LEN <= end) {
 880                 /* Event data may be unaligned, so make a local, aligned copy
 881                  * before processing. */
 882                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 883                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 884                            iwe->cmd, iwe->len);
 885                 if (iwe->len <= IW_EV_LCP_LEN)
 886                         return;
 887
 888                 custom = pos + IW_EV_POINT_LEN;
 889                 if (drv->we_version > 18 &&
 890                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 891                      iwe->cmd == IWEVASSOCREQIE ||
 892                      iwe->cmd == IWEVCUSTOM)) {
 893                         /* WE-19 removed the pointer from struct iw_point */
 894                         char *dpos = (char *) &iwe_buf.u.data.length;
 895                         int dlen = dpos - (char *) &iwe_buf;
 896                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 897                                sizeof(struct iw_event) - dlen);
 898                 } else {
 899                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 900                         custom += IW_EV_POINT_OFF;
 901                 }
 902
 903                 switch (iwe->cmd) {
 904                 case IWEVEXPIRED:
 905                         drv_event_disassoc(drv->hapd,
 906                                            (u8 *) iwe->u.addr.sa_data);
 907                         break;
 908                 case IWEVREGISTERED:
 909                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 910                         break;
 911                 case IWEVASSOCREQIE:
 912                         /* Driver hack.. Use IWEVASSOCREQIE to bypass
 913                          * IWEVCUSTOM size limitations. Need to handle this
 914                          * just like IWEVCUSTOM.
 915                          */
 916                 case IWEVCUSTOM:
 917                         if (custom + iwe->u.data.length > end)
 918                                 return;
 919                         buf = malloc(iwe->u.data.length + 1);
 920                         if (buf == NULL)
 921                                 return;         /* XXX */
 922                         memcpy(buf, custom, iwe->u.data.length);
 923                         buf[iwe->u.data.length] = '\0';
 924                         madwifi_wireless_event_wireless_custom(
 925                                 drv, buf, buf + iwe->u.data.length);
 926                         free(buf);
 927                         break;
 928                 }
 929
 930                 pos += iwe->len;
 931         }
 932 }
 933
 934
 935 static void
 936 madwifi_wireless_event_rtm_newlink(void *ctx,
 937                                    struct ifinfomsg *ifi, u8 *buf, size_t len)
 938 {
 939         struct madwifi_driver_data *drv = ctx;
 940         int attrlen, rta_len;
 941         struct rtattr *attr;
 942
 943         if (ifi->ifi_index != drv->ifindex)
 944                 return;
 945
 946         attrlen = len;
 947         attr = (struct rtattr *) buf;
 948
 949         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 950         while (RTA_OK(attr, attrlen)) {
 951                 if (attr->rta_type == IFLA_WIRELESS) {
 952                         madwifi_wireless_event_wireless(
 953                                 drv, ((char *) attr) + rta_len,
 954                                 attr->rta_len - rta_len);
 955                 }
 956                 attr = RTA_NEXT(attr, attrlen);
 957         }
 958 }
 959
 960
 961 static int
 962 madwifi_get_we_version(struct madwifi_driver_data *drv)
 963 {
 964         struct iw_range *range;
 965         struct iwreq iwr;
 966         int minlen;
 967         size_t buflen;
 968
 969         drv->we_version = 0;
 970
 971         /*
 972          * Use larger buffer than struct iw_range in order to allow the
 973          * structure to grow in the future.
 974          */
 975         buflen = sizeof(struct iw_range) + 500;
 976         range = os_zalloc(buflen);
 977         if (range == NULL)
 978                 return -1;
 979
 980         memset(&iwr, 0, sizeof(iwr));
 981         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 982         iwr.u.data.pointer = (caddr_t) range;
 983         iwr.u.data.length = buflen;
 984
 985         minlen = ((char *) &range->enc_capa) - (char *) range +
 986                 sizeof(range->enc_capa);
 987
 988         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
 989                 perror("ioctl[SIOCGIWRANGE]");
 990                 free(range);
 991                 return -1;
 992         } else if (iwr.u.data.length >= minlen &&
 993                    range->we_version_compiled >= 18) {
 994                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
 995                            "WE(source)=%d enc_capa=0x%x",
 996                            range->we_version_compiled,
 997                            range->we_version_source,
 998                            range->enc_capa);
 999                 drv->we_version = range->we_version_compiled;
1000         }
1001
1002         free(range);
1003         return 0;
1004 }
1005
1006
1007 static int
1008 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1009 {
1010         struct netlink_config *cfg;
1011
1012         madwifi_get_we_version(drv);
1013
1014         cfg = os_zalloc(sizeof(*cfg));
1015         if (cfg == NULL)
1016                 return -1;
1017         cfg->ctx = drv;
1018         cfg->newlink_cb = madwifi_wireless_event_rtm_newlink;
1019         drv->netlink = netlink_init(cfg);
1020         if (drv->netlink == NULL) {
1021                 os_free(cfg);
1022                 return -1;
1023         }
1024
1025         return 0;
1026 }
1027
1028
1029 static int
1030 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1031                    int encrypt, const u8 *own_addr)
1032 {
1033         struct madwifi_driver_data *drv = priv;
1034         unsigned char buf[3000];
1035         unsigned char *bp = buf;
1036         struct l2_ethhdr *eth;
1037         size_t len;
1038         int status;
1039
1040         /*
1041          * Prepend the Ethernet header.  If the caller left us
1042          * space at the front we could just insert it but since
1043          * we don't know we copy to a local buffer.  Given the frequency
1044          * and size of frames this probably doesn't matter.
1045          */
1046         len = data_len + sizeof(struct l2_ethhdr);
1047         if (len > sizeof(buf)) {
1048                 bp = malloc(len);
1049                 if (bp == NULL) {
1050                         printf("EAPOL frame discarded, cannot malloc temp "
1051                                "buffer of size %lu!\n", (unsigned long) len);
1052                         return -1;
1053                 }
1054         }
1055         eth = (struct l2_ethhdr *) bp;
1056         memcpy(eth->h_dest, addr, ETH_ALEN);
1057         memcpy(eth->h_source, own_addr, ETH_ALEN);
1058         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1059         memcpy(eth+1, data, data_len);
1060
1061         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1062
1063         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1064
1065         if (bp != buf)
1066                 free(bp);
1067         return status;
1068 }
1069
1070 static void
1071 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1072 {
1073         struct madwifi_driver_data *drv = ctx;
1074         union wpa_event_data event;
1075         os_memset(&event, 0, sizeof(event));
1076         event.eapol_rx.src = src_addr;
1077         event.eapol_rx.data = buf + sizeof(struct l2_ethhdr);
1078         event.eapol_rx.data_len = len - sizeof(struct l2_ethhdr);
1079         wpa_supplicant_event(drv->hapd, EVENT_EAPOL_RX, &event);
1080 }
1081
1082 static void *
1083 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1084 {
1085         struct madwifi_driver_data *drv;
1086         struct ifreq ifr;
1087         struct iwreq iwr;
1088
1089         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1090         if (drv == NULL) {
1091                 printf("Could not allocate memory for madwifi driver data\n");
1092                 return NULL;
1093         }
1094
1095         drv->hapd = hapd;
1096         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1097         if (drv->ioctl_sock < 0) {
1098                 perror("socket[PF_INET,SOCK_DGRAM]");
1099                 goto bad;
1100         }
1101         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1102
1103         memset(&ifr, 0, sizeof(ifr));
1104         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1105         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1106                 perror("ioctl(SIOCGIFINDEX)");
1107                 goto bad;
1108         }
1109         drv->ifindex = ifr.ifr_ifindex;
1110
1111         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1112                                         handle_read, drv, 1);
1113         if (drv->sock_xmit == NULL)
1114                 goto bad;
1115         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1116                 goto bad;
1117         if (params->bridge[0]) {
1118                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1119                            params->bridge[0]);
1120                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1121                                                 ETH_P_EAPOL, handle_read, drv,
1122                                                 1);
1123                 if (drv->sock_recv == NULL)
1124                         goto bad;
1125         } else
1126                 drv->sock_recv = drv->sock_xmit;
1127
1128         memset(&iwr, 0, sizeof(iwr));
1129         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1130
1131         iwr.u.mode = IW_MODE_MASTER;
1132
1133         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1134                 perror("ioctl[SIOCSIWMODE]");
1135                 printf("Could not set interface to master mode!\n");
1136                 goto bad;
1137         }
1138
1139         madwifi_set_iface_flags(drv, 0);        /* mark down during setup */
1140         madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1141
1142         madwifi_receive_probe_req(drv);
1143
1144         if (madwifi_wireless_event_init(drv))
1145                 goto bad;
1146
1147         return drv;
1148 bad:
1149         if (drv->sock_xmit != NULL)
1150                 l2_packet_deinit(drv->sock_xmit);
1151         if (drv->ioctl_sock >= 0)
1152                 close(drv->ioctl_sock);
1153         if (drv != NULL)
1154                 free(drv);
1155         return NULL;
1156 }
1157
1158
1159 static void
1160 madwifi_deinit(void *priv)
1161 {
1162         struct madwifi_driver_data *drv = priv;
1163
1164         netlink_deinit(drv->netlink);
1165         (void) madwifi_set_iface_flags(drv, 0);
1166         if (drv->ioctl_sock >= 0)
1167                 close(drv->ioctl_sock);
1168         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1169                 l2_packet_deinit(drv->sock_recv);
1170         if (drv->sock_xmit != NULL)
1171                 l2_packet_deinit(drv->sock_xmit);
1172         if (drv->sock_raw)
1173                 l2_packet_deinit(drv->sock_raw);
1174         free(drv);
1175 }
1176
1177 static int
1178 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1179 {
1180         struct madwifi_driver_data *drv = priv;
1181         struct iwreq iwr;
1182
1183         memset(&iwr, 0, sizeof(iwr));
1184         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1185         iwr.u.essid.flags = 1; /* SSID active */
1186         iwr.u.essid.pointer = (caddr_t) buf;
1187         iwr.u.essid.length = len + 1;
1188
1189         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1190                 perror("ioctl[SIOCSIWESSID]");
1191                 printf("len=%d\n", len);
1192                 return -1;
1193         }
1194         return 0;
1195 }
1196
1197 static int
1198 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1199 {
1200         struct madwifi_driver_data *drv = priv;
1201         struct iwreq iwr;
1202         int ret = 0;
1203
1204         memset(&iwr, 0, sizeof(iwr));
1205         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1206         iwr.u.essid.pointer = (caddr_t) buf;
1207         iwr.u.essid.length = len;
1208
1209         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1210                 perror("ioctl[SIOCGIWESSID]");
1211                 ret = -1;
1212         } else
1213                 ret = iwr.u.essid.length;
1214
1215         return ret;
1216 }
1217
1218 static int
1219 madwifi_set_countermeasures(void *priv, int enabled)
1220 {
1221         struct madwifi_driver_data *drv = priv;
1222         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1223         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1224 }
1225
1226 static int
1227 madwifi_commit(void *priv)
1228 {
1229         return madwifi_set_iface_flags(priv, 1);
1230 }
1231
1232 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1233         .name                   = "atheros",
1234         .hapd_init              = madwifi_init,
1235         .deinit                 = madwifi_deinit,
1236         .set_ieee8021x          = madwifi_set_ieee8021x,
1237         .set_privacy            = madwifi_set_privacy,
1238         .set_key                = madwifi_set_key,
1239         .get_seqnum             = madwifi_get_seqnum,
1240         .flush                  = madwifi_flush,
1241         .set_generic_elem       = madwifi_set_opt_ie,
1242         .sta_set_flags          = madwifi_sta_set_flags,
1243         .read_sta_data          = madwifi_read_sta_driver_data,
1244         .hapd_send_eapol        = madwifi_send_eapol,
1245         .sta_disassoc           = madwifi_sta_disassoc,
1246         .sta_deauth             = madwifi_sta_deauth,
1247         .hapd_set_ssid          = madwifi_set_ssid,
1248         .hapd_get_ssid          = madwifi_get_ssid,
1249         .set_countermeasures    = madwifi_set_countermeasures,
1250         .sta_clear_stats        = madwifi_sta_clear_stats,
1251         .commit                 = madwifi_commit,
1252         .set_ap_wps_ie          = madwifi_set_ap_wps_ie,
1253 };