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