src/drivers/driver_madwifi.c

   1 /*
   2  * WPA Supplicant - driver interaction with MADWIFI 802.11 driver
   3  * Copyright (c) 2004, Sam Leffler <sam@errno.com>
   4  * Copyright (c) 2004, Video54 Technologies
   5  * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * Alternatively, this software may be distributed under the terms of BSD
  12  * license.
  13  *
  14  * See README and COPYING for more details.
  15  *
  16  * While this driver wrapper supports both AP (hostapd) and station
  17  * (wpa_supplicant) operations, the station side is deprecated and
  18  * driver_wext.c should be used instead. This driver wrapper should only be
  19  * used with hostapd for AP mode functionality.
  20  */
  21
  22 #include "includes.h"
  23 #include <sys/ioctl.h>
  24
  25 #include "common.h"
  26 #include "driver.h"
  27 #include "driver_wext.h"
  28 #include "eloop.h"
  29 #include "common/ieee802_11_defs.h"
  30 #include "wireless_copy.h"
  31
  32 /*
  33  * Avoid conflicts with wpa_supplicant definitions by undefining a definition.
  34  */
  35 #undef WME_OUI_TYPE
  36
  37 #include <include/compat.h>
  38 #include <net80211/ieee80211.h>
  39 #ifdef WME_NUM_AC
  40 /* Assume this is built against BSD branch of madwifi driver. */
  41 #define MADWIFI_BSD
  42 #include <net80211/_ieee80211.h>
  43 #endif /* WME_NUM_AC */
  44 #include <net80211/ieee80211_crypto.h>
  45 #include <net80211/ieee80211_ioctl.h>
  46
  47 #ifdef CONFIG_WPS
  48 #ifdef IEEE80211_IOCTL_FILTERFRAME
  49 #include <netpacket/packet.h>
  50
  51 #ifndef ETH_P_80211_RAW
  52 #define ETH_P_80211_RAW 0x0019
  53 #endif
  54 #endif /* IEEE80211_IOCTL_FILTERFRAME */
  55 #endif /* CONFIG_WPS */
  56
  57 /*
  58  * Avoid conflicts with hostapd definitions by undefining couple of defines
  59  * from madwifi header files.
  60  */
  61 #undef RSN_VERSION
  62 #undef WPA_VERSION
  63 #undef WPA_OUI_TYPE
  64 #undef WME_OUI_TYPE
  65
  66
  67 #ifdef IEEE80211_IOCTL_SETWMMPARAMS
  68 /* Assume this is built against madwifi-ng */
  69 #define MADWIFI_NG
  70 #endif /* IEEE80211_IOCTL_SETWMMPARAMS */
  71
  72
  73 #ifdef HOSTAPD
  74
  75 #include "priv_netlink.h"
  76 #include "netlink.h"
  77 #include "linux_ioctl.h"
  78 #include "l2_packet/l2_packet.h"
  79
  80
  81 struct madwifi_driver_data {
  82         struct hostapd_data *hapd;              /* back pointer */
  83
  84         char    iface[IFNAMSIZ + 1];
  85         int     ifindex;
  86         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
  87         struct l2_packet_data *sock_recv;       /* raw packet recv socket */
  88         int     ioctl_sock;                     /* socket for ioctl() use */
  89         struct netlink_data *netlink;
  90         int     we_version;
  91         u8      acct_mac[ETH_ALEN];
  92         struct hostap_sta_driver_data acct_data;
  93
  94         struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
  95 };
  96
  97 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
  98                               int reason_code);
  99
 100 static int
 101 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
 102 {
 103         struct iwreq iwr;
 104         int do_inline = len < IFNAMSIZ;
 105
 106         memset(&iwr, 0, sizeof(iwr));
 107         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 108 #ifdef IEEE80211_IOCTL_FILTERFRAME
 109         /* FILTERFRAME must be NOT inline, regardless of size. */
 110         if (op == IEEE80211_IOCTL_FILTERFRAME)
 111                 do_inline = 0;
 112 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 113         if (op == IEEE80211_IOCTL_SET_APPIEBUF)
 114                 do_inline = 0;
 115         if (do_inline) {
 116                 /*
 117                  * Argument data fits inline; put it there.
 118                  */
 119                 memcpy(iwr.u.name, data, len);
 120         } else {
 121                 /*
 122                  * Argument data too big for inline transfer; setup a
 123                  * parameter block instead; the kernel will transfer
 124                  * the data for the driver.
 125                  */
 126                 iwr.u.data.pointer = data;
 127                 iwr.u.data.length = len;
 128         }
 129
 130         if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
 131 #ifdef MADWIFI_NG
 132                 int first = IEEE80211_IOCTL_SETPARAM;
 133                 static const char *opnames[] = {
 134                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 135                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 136                         "ioctl[IEEE80211_IOCTL_SETMODE]",
 137                         "ioctl[IEEE80211_IOCTL_GETMODE]",
 138                         "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
 139                         "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
 140                         "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
 141                         "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
 142                         "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
 143                         "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
 144                         "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
 145                         "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
 146                         "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
 147                         "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
 148                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 149                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 150                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 151                         NULL,
 152                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 153                         NULL,
 154                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 155                         NULL,
 156                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 157                         NULL,
 158                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 159                         NULL,
 160                         "ioctl[IEEE80211_IOCTL_WDSMAC]",
 161                         NULL,
 162                         "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
 163                         NULL,
 164                         "ioctl[IEEE80211_IOCTL_KICKMAC]",
 165                 };
 166 #else /* MADWIFI_NG */
 167                 int first = IEEE80211_IOCTL_SETPARAM;
 168                 static const char *opnames[] = {
 169                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 170                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 171                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 172                         "ioctl[SIOCIWFIRSTPRIV+3]",
 173                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 174                         "ioctl[SIOCIWFIRSTPRIV+5]",
 175                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 176                         "ioctl[SIOCIWFIRSTPRIV+7]",
 177                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 178                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 179                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 180                         "ioctl[SIOCIWFIRSTPRIV+11]",
 181                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 182                         "ioctl[SIOCIWFIRSTPRIV+13]",
 183                         "ioctl[IEEE80211_IOCTL_CHANLIST]",
 184                         "ioctl[SIOCIWFIRSTPRIV+15]",
 185                         "ioctl[IEEE80211_IOCTL_GETRSN]",
 186                         "ioctl[SIOCIWFIRSTPRIV+17]",
 187                         "ioctl[IEEE80211_IOCTL_GETKEY]",
 188                 };
 189 #endif /* MADWIFI_NG */
 190                 int idx = op - first;
 191                 if (first <= op &&
 192                     idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
 193                     opnames[idx])
 194                         perror(opnames[idx]);
 195                 else
 196                         perror("ioctl[unknown???]");
 197                 return -1;
 198         }
 199         return 0;
 200 }
 201
 202 static int
 203 set80211param(struct madwifi_driver_data *drv, int op, int arg)
 204 {
 205         struct iwreq iwr;
 206
 207         memset(&iwr, 0, sizeof(iwr));
 208         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 209         iwr.u.mode = op;
 210         memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
 211
 212         if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 213                 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 214                 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
 215                            "arg %d)", __func__, op, arg);
 216                 return -1;
 217         }
 218         return 0;
 219 }
 220
 221 #ifndef CONFIG_NO_STDOUT_DEBUG
 222 static const char *
 223 ether_sprintf(const u8 *addr)
 224 {
 225         static char buf[sizeof(MACSTR)];
 226
 227         if (addr != NULL)
 228                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 229         else
 230                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 231         return buf;
 232 }
 233 #endif /* CONFIG_NO_STDOUT_DEBUG */
 234
 235 /*
 236  * Configure WPA parameters.
 237  */
 238 static int
 239 madwifi_configure_wpa(struct madwifi_driver_data *drv,
 240                       struct wpa_bss_params *params)
 241 {
 242         int v;
 243
 244         switch (params->wpa_group) {
 245         case WPA_CIPHER_CCMP:
 246                 v = IEEE80211_CIPHER_AES_CCM;
 247                 break;
 248         case WPA_CIPHER_TKIP:
 249                 v = IEEE80211_CIPHER_TKIP;
 250                 break;
 251         case WPA_CIPHER_WEP104:
 252                 v = IEEE80211_CIPHER_WEP;
 253                 break;
 254         case WPA_CIPHER_WEP40:
 255                 v = IEEE80211_CIPHER_WEP;
 256                 break;
 257         case WPA_CIPHER_NONE:
 258                 v = IEEE80211_CIPHER_NONE;
 259                 break;
 260         default:
 261                 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
 262                            params->wpa_group);
 263                 return -1;
 264         }
 265         wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
 266         if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
 267                 printf("Unable to set group key cipher to %u\n", v);
 268                 return -1;
 269         }
 270         if (v == IEEE80211_CIPHER_WEP) {
 271                 /* key length is done only for specific ciphers */
 272                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 273                 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
 274                         printf("Unable to set group key length to %u\n", v);
 275                         return -1;
 276                 }
 277         }
 278
 279         v = 0;
 280         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 281                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 282         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 283                 v |= 1<<IEEE80211_CIPHER_TKIP;
 284         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 285                 v |= 1<<IEEE80211_CIPHER_NONE;
 286         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 287         if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
 288                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 289                 return -1;
 290         }
 291
 292         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 293                    __func__, params->wpa_key_mgmt);
 294         if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
 295                           params->wpa_key_mgmt)) {
 296                 printf("Unable to set key management algorithms to 0x%x\n",
 297                         params->wpa_key_mgmt);
 298                 return -1;
 299         }
 300
 301         v = 0;
 302         if (params->rsn_preauth)
 303                 v |= BIT(0);
 304         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 305                    __func__, params->rsn_preauth);
 306         if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
 307                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 308                 return -1;
 309         }
 310
 311         wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
 312         if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
 313                 printf("Unable to set WPA to %u\n", params->wpa);
 314                 return -1;
 315         }
 316         return 0;
 317 }
 318
 319 static int
 320 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 321 {
 322         struct madwifi_driver_data *drv = priv;
 323
 324         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 325
 326         if (!params->enabled) {
 327                 /* XXX restore state */
 328                 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 329                         IEEE80211_AUTH_AUTO);
 330         }
 331         if (!params->wpa && !params->ieee802_1x) {
 332                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 333                         HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
 334                 return -1;
 335         }
 336         if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
 337                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 338                         HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
 339                 return -1;
 340         }
 341         if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 342                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 343                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 344                         HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
 345                 return -1;
 346         }
 347
 348         return 0;
 349 }
 350
 351 static int
 352 madwifi_set_privacy(void *priv, int enabled)
 353 {
 354         struct madwifi_driver_data *drv = priv;
 355
 356         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 357
 358         return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
 359 }
 360
 361 static int
 362 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
 363 {
 364         struct madwifi_driver_data *drv = priv;
 365         struct ieee80211req_mlme mlme;
 366         int ret;
 367
 368         wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
 369                    __func__, ether_sprintf(addr), authorized);
 370
 371         if (authorized)
 372                 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
 373         else
 374                 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
 375         mlme.im_reason = 0;
 376         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 377         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 378         if (ret < 0) {
 379                 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
 380                            __func__, authorized ? "" : "un", MAC2STR(addr));
 381         }
 382
 383         return ret;
 384 }
 385
 386 static int
 387 madwifi_sta_set_flags(void *priv, const u8 *addr,
 388                       int total_flags, int flags_or, int flags_and)
 389 {
 390         /* For now, only support setting Authorized flag */
 391         if (flags_or & WPA_STA_AUTHORIZED)
 392                 return madwifi_set_sta_authorized(priv, addr, 1);
 393         if (!(flags_and & WPA_STA_AUTHORIZED))
 394                 return madwifi_set_sta_authorized(priv, addr, 0);
 395         return 0;
 396 }
 397
 398 static int
 399 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
 400 {
 401         struct madwifi_driver_data *drv = priv;
 402         struct ieee80211req_del_key wk;
 403         int ret;
 404
 405         wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
 406                    __func__, ether_sprintf(addr), key_idx);
 407
 408         memset(&wk, 0, sizeof(wk));
 409         if (addr != NULL) {
 410                 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 411                 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
 412         } else {
 413                 wk.idk_keyix = key_idx;
 414         }
 415
 416         ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
 417         if (ret < 0) {
 418                 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
 419                            " key_idx %d)", __func__, ether_sprintf(addr),
 420                            key_idx);
 421         }
 422
 423         return ret;
 424 }
 425
 426 static int
 427 wpa_driver_madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 428                            const u8 *addr, int key_idx, int set_tx,
 429                            const u8 *seq, size_t seq_len,
 430                            const u8 *key, size_t key_len)
 431 {
 432         struct madwifi_driver_data *drv = priv;
 433         struct ieee80211req_key wk;
 434         u_int8_t cipher;
 435         int ret;
 436
 437         if (alg == WPA_ALG_NONE)
 438                 return madwifi_del_key(drv, addr, key_idx);
 439
 440         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
 441                    __func__, alg, ether_sprintf(addr), key_idx);
 442
 443         if (alg == WPA_ALG_WEP)
 444                 cipher = IEEE80211_CIPHER_WEP;
 445         else if (alg == WPA_ALG_TKIP)
 446                 cipher = IEEE80211_CIPHER_TKIP;
 447         else if (alg == WPA_ALG_CCMP)
 448                 cipher = IEEE80211_CIPHER_AES_CCM;
 449         else {
 450                 printf("%s: unknown/unsupported algorithm %d\n",
 451                         __func__, alg);
 452                 return -1;
 453         }
 454
 455         if (key_len > sizeof(wk.ik_keydata)) {
 456                 printf("%s: key length %lu too big\n", __func__,
 457                        (unsigned long) key_len);
 458                 return -3;
 459         }
 460
 461         memset(&wk, 0, sizeof(wk));
 462         wk.ik_type = cipher;
 463         wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
 464         if (addr == NULL) {
 465                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 466                 wk.ik_keyix = key_idx;
 467                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 468         } else {
 469                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 470                 wk.ik_keyix = IEEE80211_KEYIX_NONE;
 471         }
 472         wk.ik_keylen = key_len;
 473         memcpy(wk.ik_keydata, key, key_len);
 474
 475         ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
 476         if (ret < 0) {
 477                 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
 478                            " key_idx %d alg %d key_len %lu set_tx %d)",
 479                            __func__, ether_sprintf(wk.ik_macaddr), key_idx,
 480                            alg, (unsigned long) key_len, set_tx);
 481         }
 482
 483         return ret;
 484 }
 485
 486
 487 static int
 488 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 489                    u8 *seq)
 490 {
 491         struct madwifi_driver_data *drv = priv;
 492         struct ieee80211req_key wk;
 493
 494         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 495                    __func__, ether_sprintf(addr), idx);
 496
 497         memset(&wk, 0, sizeof(wk));
 498         if (addr == NULL)
 499                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 500         else
 501                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 502         wk.ik_keyix = idx;
 503
 504         if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
 505                 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
 506                            "(addr " MACSTR " key_idx %d)",
 507                            __func__, MAC2STR(wk.ik_macaddr), idx);
 508                 return -1;
 509         }
 510
 511 #ifdef WORDS_BIGENDIAN
 512         {
 513                 /*
 514                  * wk.ik_keytsc is in host byte order (big endian), need to
 515                  * swap it to match with the byte order used in WPA.
 516                  */
 517                 int i;
 518                 u8 tmp[WPA_KEY_RSC_LEN];
 519                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 520                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 521                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 522                 }
 523         }
 524 #else /* WORDS_BIGENDIAN */
 525         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 526 #endif /* WORDS_BIGENDIAN */
 527         return 0;
 528 }
 529
 530
 531 static int
 532 madwifi_flush(void *priv)
 533 {
 534 #ifdef MADWIFI_BSD
 535         u8 allsta[IEEE80211_ADDR_LEN];
 536         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 537         return madwifi_sta_deauth(priv, NULL, allsta,
 538                                   IEEE80211_REASON_AUTH_LEAVE);
 539 #else /* MADWIFI_BSD */
 540         return 0;               /* XXX */
 541 #endif /* MADWIFI_BSD */
 542 }
 543
 544
 545 static int
 546 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 547                              const u8 *addr)
 548 {
 549         struct madwifi_driver_data *drv = priv;
 550
 551 #ifdef MADWIFI_BSD
 552         struct ieee80211req_sta_stats stats;
 553
 554         memset(data, 0, sizeof(*data));
 555
 556         /*
 557          * Fetch statistics for station from the system.
 558          */
 559         memset(&stats, 0, sizeof(stats));
 560         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 561         if (set80211priv(drv,
 562 #ifdef MADWIFI_NG
 563                          IEEE80211_IOCTL_STA_STATS,
 564 #else /* MADWIFI_NG */
 565                          IEEE80211_IOCTL_GETSTASTATS,
 566 #endif /* MADWIFI_NG */
 567                          &stats, sizeof(stats))) {
 568                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 569                            MACSTR ")", __func__, MAC2STR(addr));
 570                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 571                         memcpy(data, &drv->acct_data, sizeof(*data));
 572                         return 0;
 573                 }
 574
 575                 printf("Failed to get station stats information element.\n");
 576                 return -1;
 577         }
 578
 579         data->rx_packets = stats.is_stats.ns_rx_data;
 580         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 581         data->tx_packets = stats.is_stats.ns_tx_data;
 582         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 583         return 0;
 584
 585 #else /* MADWIFI_BSD */
 586
 587         char buf[1024], line[128], *pos;
 588         FILE *f;
 589         unsigned long val;
 590
 591         memset(data, 0, sizeof(*data));
 592         snprintf(buf, sizeof(buf), "/proc/net/madwifi/%s/" MACSTR,
 593                  drv->iface, MAC2STR(addr));
 594
 595         f = fopen(buf, "r");
 596         if (!f) {
 597                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) != 0)
 598                         return -1;
 599                 memcpy(data, &drv->acct_data, sizeof(*data));
 600                 return 0;
 601         }
 602         /* Need to read proc file with in one piece, so use large enough
 603          * buffer. */
 604         setbuffer(f, buf, sizeof(buf));
 605
 606         while (fgets(line, sizeof(line), f)) {
 607                 pos = strchr(line, '=');
 608                 if (!pos)
 609                         continue;
 610                 *pos++ = '\0';
 611                 val = strtoul(pos, NULL, 10);
 612                 if (strcmp(line, "rx_packets") == 0)
 613                         data->rx_packets = val;
 614                 else if (strcmp(line, "tx_packets") == 0)
 615                         data->tx_packets = val;
 616                 else if (strcmp(line, "rx_bytes") == 0)
 617                         data->rx_bytes = val;
 618                 else if (strcmp(line, "tx_bytes") == 0)
 619                         data->tx_bytes = val;
 620         }
 621
 622         fclose(f);
 623
 624         return 0;
 625 #endif /* MADWIFI_BSD */
 626 }
 627
 628
 629 static int
 630 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 631 {
 632 #if defined(MADWIFI_BSD) && defined(IEEE80211_MLME_CLEAR_STATS)
 633         struct madwifi_driver_data *drv = priv;
 634         struct ieee80211req_mlme mlme;
 635         int ret;
 636
 637         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 638
 639         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 640         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 641         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 642                            sizeof(mlme));
 643         if (ret < 0) {
 644                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 645                            MACSTR ")", __func__, MAC2STR(addr));
 646         }
 647
 648         return ret;
 649 #else /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 650         return 0; /* FIX */
 651 #endif /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 652 }
 653
 654
 655 static int
 656 madwifi_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
 657 {
 658         /*
 659          * Do nothing; we setup parameters at startup that define the
 660          * contents of the beacon information element.
 661          */
 662         return 0;
 663 }
 664
 665 static int
 666 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 667                    int reason_code)
 668 {
 669         struct madwifi_driver_data *drv = priv;
 670         struct ieee80211req_mlme mlme;
 671         int ret;
 672
 673         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 674                    __func__, ether_sprintf(addr), reason_code);
 675
 676         mlme.im_op = IEEE80211_MLME_DEAUTH;
 677         mlme.im_reason = reason_code;
 678         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 679         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 680         if (ret < 0) {
 681                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 682                            " reason %d)",
 683                            __func__, MAC2STR(addr), reason_code);
 684         }
 685
 686         return ret;
 687 }
 688
 689 static int
 690 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 691                      int reason_code)
 692 {
 693         struct madwifi_driver_data *drv = priv;
 694         struct ieee80211req_mlme mlme;
 695         int ret;
 696
 697         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 698                    __func__, ether_sprintf(addr), reason_code);
 699
 700         mlme.im_op = IEEE80211_MLME_DISASSOC;
 701         mlme.im_reason = reason_code;
 702         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 703         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 704         if (ret < 0) {
 705                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 706                            MACSTR " reason %d)",
 707                            __func__, MAC2STR(addr), reason_code);
 708         }
 709
 710         return ret;
 711 }
 712
 713 #ifdef CONFIG_WPS
 714 #ifdef IEEE80211_IOCTL_FILTERFRAME
 715 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 716                                 size_t len)
 717 {
 718         struct madwifi_driver_data *drv = ctx;
 719         const struct ieee80211_mgmt *mgmt;
 720         u16 fc;
 721         union wpa_event_data event;
 722
 723         /* Send Probe Request information to WPS processing */
 724
 725         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 726                 return;
 727         mgmt = (const struct ieee80211_mgmt *) buf;
 728
 729         fc = le_to_host16(mgmt->frame_control);
 730         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 731             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 732                 return;
 733
 734         os_memset(&event, 0, sizeof(event));
 735         event.rx_probe_req.sa = mgmt->sa;
 736         event.rx_probe_req.ie = mgmt->u.probe_req.variable;
 737         event.rx_probe_req.ie_len =
 738                 len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 739         wpa_supplicant_event(drv->hapd, EVENT_RX_PROBE_REQ, &event);
 740 }
 741 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 742 #endif /* CONFIG_WPS */
 743
 744 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 745 {
 746         int ret = 0;
 747 #ifdef CONFIG_WPS
 748 #ifdef IEEE80211_IOCTL_FILTERFRAME
 749         struct ieee80211req_set_filter filt;
 750
 751         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 752         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 753
 754         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 755                            sizeof(struct ieee80211req_set_filter));
 756         if (ret)
 757                 return ret;
 758
 759         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 760                                        madwifi_raw_receive, drv, 1);
 761         if (drv->sock_raw == NULL)
 762                 return -1;
 763 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 764 #endif /* CONFIG_WPS */
 765         return ret;
 766 }
 767
 768 #ifdef CONFIG_WPS
 769 static int
 770 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 771 {
 772         struct madwifi_driver_data *drv = priv;
 773         u8 buf[256];
 774         struct ieee80211req_getset_appiebuf *beac_ie;
 775
 776         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 777                    (unsigned long) len);
 778
 779         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 780         beac_ie->app_frmtype = frametype;
 781         beac_ie->app_buflen = len;
 782         memcpy(&(beac_ie->app_buf[0]), ie, len);
 783
 784         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 785                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 786 }
 787
 788 static int
 789 madwifi_set_ap_wps_ie(void *priv, const struct wpabuf *beacon,
 790                       const struct wpabuf *proberesp)
 791 {
 792         if (madwifi_set_wps_ie(priv, beacon ? wpabuf_head(beacon) : NULL,
 793                                beacon ? wpabuf_len(beacon) : 0,
 794                                IEEE80211_APPIE_FRAME_BEACON) < 0)
 795                 return -1;
 796         return madwifi_set_wps_ie(priv,
 797                                   proberesp ? wpabuf_head(proberesp) : NULL,
 798                                   proberesp ? wpabuf_len(proberesp) : 0,
 799                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 800 }
 801 #else /* CONFIG_WPS */
 802 #define madwifi_set_ap_wps_ie NULL
 803 #endif /* CONFIG_WPS */
 804
 805 static void
 806 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 807 {
 808         struct hostapd_data *hapd = drv->hapd;
 809         struct ieee80211req_wpaie ie;
 810         int ielen = 0;
 811         u8 *iebuf = NULL;
 812
 813         /*
 814          * Fetch negotiated WPA/RSN parameters from the system.
 815          */
 816         memset(&ie, 0, sizeof(ie));
 817         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 818         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 819                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE",
 820                            __func__);
 821                 goto no_ie;
 822         }
 823         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 824                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 825         iebuf = ie.wpa_ie;
 826         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 827          * Assume the IE was not included if the IE type is unknown. */
 828         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 829                 iebuf[1] = 0;
 830 #ifdef MADWIFI_NG
 831         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 832                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 833         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 834                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 835                  * set. This is needed for WPA2. */
 836                 iebuf = ie.rsn_ie;
 837                 if (iebuf[0] != WLAN_EID_RSN)
 838                         iebuf[1] = 0;
 839         }
 840 #endif /* MADWIFI_NG */
 841
 842         ielen = iebuf[1];
 843         if (ielen == 0)
 844                 iebuf = NULL;
 845         else
 846                 ielen += 2;
 847
 848 no_ie:
 849         drv_event_assoc(hapd, addr, iebuf, ielen);
 850
 851         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 852                 /* Cached accounting data is not valid anymore. */
 853                 memset(drv->acct_mac, 0, ETH_ALEN);
 854                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 855         }
 856 }
 857
 858 static void
 859 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 860                                        char *custom)
 861 {
 862         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 863
 864         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 865                 char *pos;
 866                 u8 addr[ETH_ALEN];
 867                 pos = strstr(custom, "addr=");
 868                 if (pos == NULL) {
 869                         wpa_printf(MSG_DEBUG,
 870                                    "MLME-MICHAELMICFAILURE.indication "
 871                                    "without sender address ignored");
 872                         return;
 873                 }
 874                 pos += 5;
 875                 if (hwaddr_aton(pos, addr) == 0) {
 876                         union wpa_event_data data;
 877                         os_memset(&data, 0, sizeof(data));
 878                         data.michael_mic_failure.unicast = 1;
 879                         data.michael_mic_failure.src = addr;
 880                         wpa_supplicant_event(drv->hapd,
 881                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 882                 } else {
 883                         wpa_printf(MSG_DEBUG,
 884                                    "MLME-MICHAELMICFAILURE.indication "
 885                                    "with invalid MAC address");
 886                 }
 887         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 888                 char *key, *value;
 889                 u32 val;
 890                 key = custom;
 891                 while ((key = strchr(key, '\n')) != NULL) {
 892                         key++;
 893                         value = strchr(key, '=');
 894                         if (value == NULL)
 895                                 continue;
 896                         *value++ = '\0';
 897                         val = strtoul(value, NULL, 10);
 898                         if (strcmp(key, "mac") == 0)
 899                                 hwaddr_aton(value, drv->acct_mac);
 900                         else if (strcmp(key, "rx_packets") == 0)
 901                                 drv->acct_data.rx_packets = val;
 902                         else if (strcmp(key, "tx_packets") == 0)
 903                                 drv->acct_data.tx_packets = val;
 904                         else if (strcmp(key, "rx_bytes") == 0)
 905                                 drv->acct_data.rx_bytes = val;
 906                         else if (strcmp(key, "tx_bytes") == 0)
 907                                 drv->acct_data.tx_bytes = val;
 908                         key = value;
 909                 }
 910         }
 911 }
 912
 913 static void
 914 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 915                                             char *data, int len)
 916 {
 917         struct iw_event iwe_buf, *iwe = &iwe_buf;
 918         char *pos, *end, *custom, *buf;
 919
 920         pos = data;
 921         end = data + len;
 922
 923         while (pos + IW_EV_LCP_LEN <= end) {
 924                 /* Event data may be unaligned, so make a local, aligned copy
 925                  * before processing. */
 926                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 927                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 928                            iwe->cmd, iwe->len);
 929                 if (iwe->len <= IW_EV_LCP_LEN)
 930                         return;
 931
 932                 custom = pos + IW_EV_POINT_LEN;
 933                 if (drv->we_version > 18 &&
 934                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 935                      iwe->cmd == IWEVCUSTOM)) {
 936                         /* WE-19 removed the pointer from struct iw_point */
 937                         char *dpos = (char *) &iwe_buf.u.data.length;
 938                         int dlen = dpos - (char *) &iwe_buf;
 939                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 940                                sizeof(struct iw_event) - dlen);
 941                 } else {
 942                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 943                         custom += IW_EV_POINT_OFF;
 944                 }
 945
 946                 switch (iwe->cmd) {
 947                 case IWEVEXPIRED:
 948                         drv_event_disassoc(drv->hapd,
 949                                            (u8 *) iwe->u.addr.sa_data);
 950                         break;
 951                 case IWEVREGISTERED:
 952                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 953                         break;
 954                 case IWEVCUSTOM:
 955                         if (custom + iwe->u.data.length > end)
 956                                 return;
 957                         buf = malloc(iwe->u.data.length + 1);
 958                         if (buf == NULL)
 959                                 return;         /* XXX */
 960                         memcpy(buf, custom, iwe->u.data.length);
 961                         buf[iwe->u.data.length] = '\0';
 962                         madwifi_wireless_event_wireless_custom(drv, buf);
 963                         free(buf);
 964                         break;
 965                 }
 966
 967                 pos += iwe->len;
 968         }
 969 }
 970
 971
 972 static void
 973 madwifi_wireless_event_rtm_newlink(void *ctx, struct ifinfomsg *ifi,
 974                                    u8 *buf, size_t len)
 975 {
 976         struct madwifi_driver_data *drv = ctx;
 977         int attrlen, rta_len;
 978         struct rtattr *attr;
 979
 980         if (ifi->ifi_index != drv->ifindex)
 981                 return;
 982
 983         attrlen = len;
 984         attr = (struct rtattr *) buf;
 985
 986         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 987         while (RTA_OK(attr, attrlen)) {
 988                 if (attr->rta_type == IFLA_WIRELESS) {
 989                         madwifi_wireless_event_wireless(
 990                                 drv, ((char *) attr) + rta_len,
 991                                 attr->rta_len - rta_len);
 992                 }
 993                 attr = RTA_NEXT(attr, attrlen);
 994         }
 995 }
 996
 997
 998 static int
 999 madwifi_get_we_version(struct madwifi_driver_data *drv)
1000 {
1001         struct iw_range *range;
1002         struct iwreq iwr;
1003         int minlen;
1004         size_t buflen;
1005
1006         drv->we_version = 0;
1007
1008         /*
1009          * Use larger buffer than struct iw_range in order to allow the
1010          * structure to grow in the future.
1011          */
1012         buflen = sizeof(struct iw_range) + 500;
1013         range = os_zalloc(buflen);
1014         if (range == NULL)
1015                 return -1;
1016
1017         memset(&iwr, 0, sizeof(iwr));
1018         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1019         iwr.u.data.pointer = (caddr_t) range;
1020         iwr.u.data.length = buflen;
1021
1022         minlen = ((char *) &range->enc_capa) - (char *) range +
1023                 sizeof(range->enc_capa);
1024
1025         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1026                 perror("ioctl[SIOCGIWRANGE]");
1027                 free(range);
1028                 return -1;
1029         } else if (iwr.u.data.length >= minlen &&
1030                    range->we_version_compiled >= 18) {
1031                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1032                            "WE(source)=%d enc_capa=0x%x",
1033                            range->we_version_compiled,
1034                            range->we_version_source,
1035                            range->enc_capa);
1036                 drv->we_version = range->we_version_compiled;
1037         }
1038
1039         free(range);
1040         return 0;
1041 }
1042
1043
1044 static int
1045 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1046 {
1047         struct netlink_config *cfg;
1048
1049         madwifi_get_we_version(drv);
1050
1051         cfg = os_zalloc(sizeof(*cfg));
1052         if (cfg == NULL)
1053                 return -1;
1054         cfg->ctx = drv;
1055         cfg->newlink_cb = madwifi_wireless_event_rtm_newlink;
1056         drv->netlink = netlink_init(cfg);
1057         if (drv->netlink == NULL) {
1058                 os_free(cfg);
1059                 return -1;
1060         }
1061
1062         return 0;
1063 }
1064
1065
1066 static int
1067 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1068                    int encrypt, const u8 *own_addr)
1069 {
1070         struct madwifi_driver_data *drv = priv;
1071         unsigned char buf[3000];
1072         unsigned char *bp = buf;
1073         struct l2_ethhdr *eth;
1074         size_t len;
1075         int status;
1076
1077         /*
1078          * Prepend the Ethernet header.  If the caller left us
1079          * space at the front we could just insert it but since
1080          * we don't know we copy to a local buffer.  Given the frequency
1081          * and size of frames this probably doesn't matter.
1082          */
1083         len = data_len + sizeof(struct l2_ethhdr);
1084         if (len > sizeof(buf)) {
1085                 bp = malloc(len);
1086                 if (bp == NULL) {
1087                         printf("EAPOL frame discarded, cannot malloc temp "
1088                                "buffer of size %lu!\n", (unsigned long) len);
1089                         return -1;
1090                 }
1091         }
1092         eth = (struct l2_ethhdr *) bp;
1093         memcpy(eth->h_dest, addr, ETH_ALEN);
1094         memcpy(eth->h_source, own_addr, ETH_ALEN);
1095         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1096         memcpy(eth+1, data, data_len);
1097
1098         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1099
1100         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1101
1102         if (bp != buf)
1103                 free(bp);
1104         return status;
1105 }
1106
1107 static void
1108 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1109 {
1110         struct madwifi_driver_data *drv = ctx;
1111         drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
1112                            len - sizeof(struct l2_ethhdr));
1113 }
1114
1115 static void *
1116 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1117 {
1118         struct madwifi_driver_data *drv;
1119         struct ifreq ifr;
1120         struct iwreq iwr;
1121         char brname[IFNAMSIZ];
1122
1123         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1124         if (drv == NULL) {
1125                 printf("Could not allocate memory for madwifi driver data\n");
1126                 return NULL;
1127         }
1128
1129         drv->hapd = hapd;
1130         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1131         if (drv->ioctl_sock < 0) {
1132                 perror("socket[PF_INET,SOCK_DGRAM]");
1133                 goto bad;
1134         }
1135         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1136
1137         memset(&ifr, 0, sizeof(ifr));
1138         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1139         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1140                 perror("ioctl(SIOCGIFINDEX)");
1141                 goto bad;
1142         }
1143         drv->ifindex = ifr.ifr_ifindex;
1144
1145         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1146                                         handle_read, drv, 1);
1147         if (drv->sock_xmit == NULL)
1148                 goto bad;
1149         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1150                 goto bad;
1151         if (params->bridge[0]) {
1152                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1153                            params->bridge[0]);
1154                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1155                                                 ETH_P_EAPOL, handle_read, drv,
1156                                                 1);
1157                 if (drv->sock_recv == NULL)
1158                         goto bad;
1159         } else if (linux_br_get(brname, drv->iface) == 0) {
1160                 wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
1161                            "EAPOL receive", brname);
1162                 drv->sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
1163                                                 handle_read, drv, 1);
1164                 if (drv->sock_recv == NULL)
1165                         goto bad;
1166         } else
1167                 drv->sock_recv = drv->sock_xmit;
1168
1169         memset(&iwr, 0, sizeof(iwr));
1170         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1171
1172         iwr.u.mode = IW_MODE_MASTER;
1173
1174         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1175                 perror("ioctl[SIOCSIWMODE]");
1176                 printf("Could not set interface to master mode!\n");
1177                 goto bad;
1178         }
1179
1180         /* mark down during setup */
1181         linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1182         madwifi_set_privacy(drv, 0); /* default to no privacy */
1183
1184         madwifi_receive_probe_req(drv);
1185
1186         if (madwifi_wireless_event_init(drv))
1187                 goto bad;
1188
1189         return drv;
1190 bad:
1191         if (drv->sock_xmit != NULL)
1192                 l2_packet_deinit(drv->sock_xmit);
1193         if (drv->ioctl_sock >= 0)
1194                 close(drv->ioctl_sock);
1195         if (drv != NULL)
1196                 free(drv);
1197         return NULL;
1198 }
1199
1200
1201 static void
1202 madwifi_deinit(void *priv)
1203 {
1204         struct madwifi_driver_data *drv = priv;
1205
1206         netlink_deinit(drv->netlink);
1207         (void) linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1208         if (drv->ioctl_sock >= 0)
1209                 close(drv->ioctl_sock);
1210         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1211                 l2_packet_deinit(drv->sock_recv);
1212         if (drv->sock_xmit != NULL)
1213                 l2_packet_deinit(drv->sock_xmit);
1214         if (drv->sock_raw)
1215                 l2_packet_deinit(drv->sock_raw);
1216         free(drv);
1217 }
1218
1219 static int
1220 madwifi_set_ssid(void *priv, const u8 *buf, int len)
1221 {
1222         struct madwifi_driver_data *drv = priv;
1223         struct iwreq iwr;
1224
1225         memset(&iwr, 0, sizeof(iwr));
1226         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1227         iwr.u.essid.flags = 1; /* SSID active */
1228         iwr.u.essid.pointer = (caddr_t) buf;
1229         iwr.u.essid.length = len + 1;
1230
1231         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1232                 perror("ioctl[SIOCSIWESSID]");
1233                 printf("len=%d\n", len);
1234                 return -1;
1235         }
1236         return 0;
1237 }
1238
1239 static int
1240 madwifi_get_ssid(void *priv, u8 *buf, int len)
1241 {
1242         struct madwifi_driver_data *drv = priv;
1243         struct iwreq iwr;
1244         int ret = 0;
1245
1246         memset(&iwr, 0, sizeof(iwr));
1247         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1248         iwr.u.essid.pointer = (caddr_t) buf;
1249         iwr.u.essid.length = len;
1250
1251         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1252                 perror("ioctl[SIOCGIWESSID]");
1253                 ret = -1;
1254         } else
1255                 ret = iwr.u.essid.length;
1256
1257         return ret;
1258 }
1259
1260 static int
1261 madwifi_set_countermeasures(void *priv, int enabled)
1262 {
1263         struct madwifi_driver_data *drv = priv;
1264         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1265         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1266 }
1267
1268 static int
1269 madwifi_commit(void *priv)
1270 {
1271         struct madwifi_driver_data *drv = priv;
1272         return linux_set_iface_flags(drv->ioctl_sock, drv->iface, 1);
1273 }
1274
1275 #else /* HOSTAPD */
1276
1277 struct wpa_driver_madwifi_data {
1278         void *wext; /* private data for driver_wext */
1279         void *ctx;
1280         char ifname[IFNAMSIZ + 1];
1281         int sock;
1282 };
1283
1284 static int wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg);
1285 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1286                                                size_t ies_len);
1287
1288
1289 static int
1290 set80211priv(struct wpa_driver_madwifi_data *drv, int op, void *data, int len,
1291              int show_err)
1292 {
1293         struct iwreq iwr;
1294
1295         os_memset(&iwr, 0, sizeof(iwr));
1296         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1297         if (len < IFNAMSIZ &&
1298             op != IEEE80211_IOCTL_SET_APPIEBUF) {
1299                 /*
1300                  * Argument data fits inline; put it there.
1301                  */
1302                 os_memcpy(iwr.u.name, data, len);
1303         } else {
1304                 /*
1305                  * Argument data too big for inline transfer; setup a
1306                  * parameter block instead; the kernel will transfer
1307                  * the data for the driver.
1308                  */
1309                 iwr.u.data.pointer = data;
1310                 iwr.u.data.length = len;
1311         }
1312
1313         if (ioctl(drv->sock, op, &iwr) < 0) {
1314                 if (show_err) {
1315 #ifdef MADWIFI_NG
1316                         int first = IEEE80211_IOCTL_SETPARAM;
1317                         int last = IEEE80211_IOCTL_KICKMAC;
1318                         static const char *opnames[] = {
1319                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1320                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1321                                 "ioctl[IEEE80211_IOCTL_SETMODE]",
1322                                 "ioctl[IEEE80211_IOCTL_GETMODE]",
1323                                 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
1324                                 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
1325                                 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
1326                                 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
1327                                 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
1328                                 NULL,
1329                                 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
1330                                 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
1331                                 NULL,
1332                                 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
1333                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1334                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1335                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1336                                 NULL,
1337                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1338                                 NULL,
1339                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1340                                 NULL,
1341                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1342                                 NULL,
1343                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1344                                 NULL,
1345                                 "ioctl[IEEE80211_IOCTL_WDSMAC]",
1346                                 NULL,
1347                                 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
1348                                 NULL,
1349                                 "ioctl[IEEE80211_IOCTL_KICKMAC]",
1350                         };
1351 #else /* MADWIFI_NG */
1352                         int first = IEEE80211_IOCTL_SETPARAM;
1353                         int last = IEEE80211_IOCTL_CHANLIST;
1354                         static const char *opnames[] = {
1355                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1356                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1357                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1358                                 "ioctl[IEEE80211_IOCTL_GETKEY]",
1359                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1360                                 NULL,
1361                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1362                                 NULL,
1363                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1364                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1365                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1366                                 NULL,
1367                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1368                                 NULL,
1369                                 "ioctl[IEEE80211_IOCTL_CHANLIST]",
1370                         };
1371 #endif /* MADWIFI_NG */
1372                         int idx = op - first;
1373                         if (first <= op && op <= last &&
1374                             idx < (int) (sizeof(opnames) / sizeof(opnames[0]))
1375                             && opnames[idx])
1376                                 perror(opnames[idx]);
1377                         else
1378                                 perror("ioctl[unknown???]");
1379                 }
1380                 return -1;
1381         }
1382         return 0;
1383 }
1384
1385 static int
1386 set80211param(struct wpa_driver_madwifi_data *drv, int op, int arg,
1387               int show_err)
1388 {
1389         struct iwreq iwr;
1390
1391         os_memset(&iwr, 0, sizeof(iwr));
1392         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1393         iwr.u.mode = op;
1394         os_memcpy(iwr.u.name+sizeof(u32), &arg, sizeof(arg));
1395
1396         if (ioctl(drv->sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
1397                 if (show_err)
1398                         perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
1399                 return -1;
1400         }
1401         return 0;
1402 }
1403
1404 static int
1405 wpa_driver_madwifi_set_wpa_ie(struct wpa_driver_madwifi_data *drv,
1406                               const u8 *wpa_ie, size_t wpa_ie_len)
1407 {
1408         struct iwreq iwr;
1409
1410         os_memset(&iwr, 0, sizeof(iwr));
1411         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1412         /* NB: SETOPTIE is not fixed-size so must not be inlined */
1413         iwr.u.data.pointer = (void *) wpa_ie;
1414         iwr.u.data.length = wpa_ie_len;
1415
1416         if (ioctl(drv->sock, IEEE80211_IOCTL_SETOPTIE, &iwr) < 0) {
1417                 perror("ioctl[IEEE80211_IOCTL_SETOPTIE]");
1418                 return -1;
1419         }
1420         return 0;
1421 }
1422
1423 static int
1424 wpa_driver_madwifi_del_key(struct wpa_driver_madwifi_data *drv, int key_idx,
1425                            const u8 *addr)
1426 {
1427         struct ieee80211req_del_key wk;
1428
1429         wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __FUNCTION__, key_idx);
1430         os_memset(&wk, 0, sizeof(wk));
1431         wk.idk_keyix = key_idx;
1432         if (addr != NULL)
1433                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
1434
1435         return set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk), 1);
1436 }
1437
1438 static int
1439 wpa_driver_madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
1440                            const u8 *addr, int key_idx, int set_tx,
1441                            const u8 *seq, size_t seq_len,
1442                            const u8 *key, size_t key_len)
1443 {
1444         struct wpa_driver_madwifi_data *drv = priv;
1445         struct ieee80211req_key wk;
1446         char *alg_name;
1447         u_int8_t cipher;
1448
1449         if (alg == WPA_ALG_NONE)
1450                 return wpa_driver_madwifi_del_key(drv, key_idx, addr);
1451
1452         switch (alg) {
1453         case WPA_ALG_WEP:
1454                 if (addr == NULL || os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1455                                               ETH_ALEN) == 0) {
1456                         /*
1457                          * madwifi did not seem to like static WEP key
1458                          * configuration with IEEE80211_IOCTL_SETKEY, so use
1459                          * Linux wireless extensions ioctl for this.
1460                          */
1461                         return wpa_driver_wext_set_key(ifname, drv->wext, alg,
1462                                                        addr, key_idx, set_tx,
1463                                                        seq, seq_len,
1464                                                        key, key_len);
1465                 }
1466                 alg_name = "WEP";
1467                 cipher = IEEE80211_CIPHER_WEP;
1468                 break;
1469         case WPA_ALG_TKIP:
1470                 alg_name = "TKIP";
1471                 cipher = IEEE80211_CIPHER_TKIP;
1472                 break;
1473         case WPA_ALG_CCMP:
1474                 alg_name = "CCMP";
1475                 cipher = IEEE80211_CIPHER_AES_CCM;
1476                 break;
1477         default:
1478                 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1479                         __FUNCTION__, alg);
1480                 return -1;
1481         }
1482
1483         wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
1484                    "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
1485                    (unsigned long) seq_len, (unsigned long) key_len);
1486
1487         if (seq_len > sizeof(u_int64_t)) {
1488                 wpa_printf(MSG_DEBUG, "%s: seq_len %lu too big",
1489                            __FUNCTION__, (unsigned long) seq_len);
1490                 return -2;
1491         }
1492         if (key_len > sizeof(wk.ik_keydata)) {
1493                 wpa_printf(MSG_DEBUG, "%s: key length %lu too big",
1494                            __FUNCTION__, (unsigned long) key_len);
1495                 return -3;
1496         }
1497
1498         os_memset(&wk, 0, sizeof(wk));
1499         wk.ik_type = cipher;
1500         wk.ik_flags = IEEE80211_KEY_RECV;
1501         if (addr == NULL ||
1502             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1503                 wk.ik_flags |= IEEE80211_KEY_GROUP;
1504         if (set_tx) {
1505                 wk.ik_flags |= IEEE80211_KEY_XMIT | IEEE80211_KEY_DEFAULT;
1506                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1507         } else
1508                 os_memset(wk.ik_macaddr, 0, IEEE80211_ADDR_LEN);
1509         wk.ik_keyix = key_idx;
1510         wk.ik_keylen = key_len;
1511 #ifdef WORDS_BIGENDIAN
1512 #define WPA_KEY_RSC_LEN 8
1513         {
1514                 size_t i;
1515                 u8 tmp[WPA_KEY_RSC_LEN];
1516                 os_memset(tmp, 0, sizeof(tmp));
1517                 for (i = 0; i < seq_len; i++)
1518                         tmp[WPA_KEY_RSC_LEN - i - 1] = seq[i];
1519                 os_memcpy(&wk.ik_keyrsc, tmp, WPA_KEY_RSC_LEN);
1520         }
1521 #else /* WORDS_BIGENDIAN */
1522         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1523 #endif /* WORDS_BIGENDIAN */
1524         os_memcpy(wk.ik_keydata, key, key_len);
1525
1526         return set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk), 1);
1527 }
1528
1529 static int
1530 wpa_driver_madwifi_set_countermeasures(void *priv, int enabled)
1531 {
1532         struct wpa_driver_madwifi_data *drv = priv;
1533         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1534         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled, 1);
1535 }
1536
1537 static int
1538 wpa_driver_madwifi_deauthenticate(void *priv, const u8 *addr, int reason_code)
1539 {
1540         struct wpa_driver_madwifi_data *drv = priv;
1541         struct ieee80211req_mlme mlme;
1542
1543         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1544         mlme.im_op = IEEE80211_MLME_DEAUTH;
1545         mlme.im_reason = reason_code;
1546         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1547         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1548 }
1549
1550 static int
1551 wpa_driver_madwifi_disassociate(void *priv, const u8 *addr, int reason_code)
1552 {
1553         struct wpa_driver_madwifi_data *drv = priv;
1554         struct ieee80211req_mlme mlme;
1555
1556         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1557         mlme.im_op = IEEE80211_MLME_DISASSOC;
1558         mlme.im_reason = reason_code;
1559         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1560         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1561 }
1562
1563 static int
1564 wpa_driver_madwifi_associate(void *priv,
1565                              struct wpa_driver_associate_params *params)
1566 {
1567         struct wpa_driver_madwifi_data *drv = priv;
1568         struct ieee80211req_mlme mlme;
1569         int ret = 0, privacy = 1;
1570
1571         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1572
1573         if (set80211param(drv, IEEE80211_PARAM_DROPUNENCRYPTED,
1574                           params->drop_unencrypted, 1) < 0)
1575                 ret = -1;
1576         if (wpa_driver_madwifi_set_auth_alg(drv, params->auth_alg) < 0)
1577                 ret = -1;
1578
1579         /*
1580          * NB: Don't need to set the freq or cipher-related state as
1581          *     this is implied by the bssid which is used to locate
1582          *     the scanned node state which holds it.  The ssid is
1583          *     needed to disambiguate an AP that broadcasts multiple
1584          *     ssid's but uses the same bssid.
1585          */
1586         /* XXX error handling is wrong but unclear what to do... */
1587         if (wpa_driver_madwifi_set_wpa_ie(drv, params->wpa_ie,
1588                                           params->wpa_ie_len) < 0)
1589                 ret = -1;
1590
1591         if (params->pairwise_suite == CIPHER_NONE &&
1592             params->group_suite == CIPHER_NONE &&
1593             params->key_mgmt_suite == KEY_MGMT_NONE &&
1594             params->wpa_ie_len == 0)
1595                 privacy = 0;
1596
1597         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, privacy, 1) < 0)
1598                 ret = -1;
1599
1600         if (params->wpa_ie_len &&
1601             set80211param(drv, IEEE80211_PARAM_WPA,
1602                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1, 1) < 0)
1603                 ret = -1;
1604
1605         if (params->bssid == NULL) {
1606                 /* ap_scan=2 mode - driver takes care of AP selection and
1607                  * roaming */
1608                 /* FIX: this does not seem to work; would probably need to
1609                  * change something in the driver */
1610                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0)
1611                         ret = -1;
1612
1613                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1614                                              params->ssid_len) < 0)
1615                         ret = -1;
1616         } else {
1617                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0)
1618                         ret = -1;
1619                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1620                                              params->ssid_len) < 0)
1621                         ret = -1;
1622                 os_memset(&mlme, 0, sizeof(mlme));
1623                 mlme.im_op = IEEE80211_MLME_ASSOC;
1624                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1625                 if (set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
1626                                  sizeof(mlme), 1) < 0) {
1627                         wpa_printf(MSG_DEBUG, "%s: SETMLME[ASSOC] failed",
1628                                    __func__);
1629                         ret = -1;
1630                 }
1631         }
1632
1633         return ret;
1634 }
1635
1636 static int
1637 wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg)
1638 {
1639         struct wpa_driver_madwifi_data *drv = priv;
1640         int authmode;
1641
1642         if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1643             (auth_alg & WPA_AUTH_ALG_SHARED))
1644                 authmode = IEEE80211_AUTH_AUTO;
1645         else if (auth_alg & WPA_AUTH_ALG_SHARED)
1646                 authmode = IEEE80211_AUTH_SHARED;
1647         else
1648                 authmode = IEEE80211_AUTH_OPEN;
1649
1650         return set80211param(drv, IEEE80211_PARAM_AUTHMODE, authmode, 1);
1651 }
1652
1653 static int
1654 wpa_driver_madwifi_scan(void *priv, struct wpa_driver_scan_params *params)
1655 {
1656         struct wpa_driver_madwifi_data *drv = priv;
1657         struct iwreq iwr;
1658         int ret = 0;
1659         const u8 *ssid = params->ssids[0].ssid;
1660         size_t ssid_len = params->ssids[0].ssid_len;
1661
1662         wpa_driver_madwifi_set_probe_req_ie(drv, params->extra_ies,
1663                                             params->extra_ies_len);
1664
1665         os_memset(&iwr, 0, sizeof(iwr));
1666         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1667
1668         /* set desired ssid before scan */
1669         /* FIX: scan should not break the current association, so using
1670          * set_ssid may not be the best way of doing this.. */
1671         if (wpa_driver_wext_set_ssid(drv->wext, ssid, ssid_len) < 0)
1672                 ret = -1;
1673
1674         if (ioctl(drv->sock, SIOCSIWSCAN, &iwr) < 0) {
1675                 perror("ioctl[SIOCSIWSCAN]");
1676                 ret = -1;
1677         }
1678
1679         /*
1680          * madwifi delivers a scan complete event so no need to poll, but
1681          * register a backup timeout anyway to make sure that we recover even
1682          * if the driver does not send this event for any reason. This timeout
1683          * will only be used if the event is not delivered (event handler will
1684          * cancel the timeout).
1685          */
1686         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv->wext,
1687                              drv->ctx);
1688         eloop_register_timeout(30, 0, wpa_driver_wext_scan_timeout, drv->wext,
1689                                drv->ctx);
1690
1691         return ret;
1692 }
1693
1694 static int wpa_driver_madwifi_get_bssid(void *priv, u8 *bssid)
1695 {
1696         struct wpa_driver_madwifi_data *drv = priv;
1697         return wpa_driver_wext_get_bssid(drv->wext, bssid);
1698 }
1699
1700
1701 static int wpa_driver_madwifi_get_ssid(void *priv, u8 *ssid)
1702 {
1703         struct wpa_driver_madwifi_data *drv = priv;
1704         return wpa_driver_wext_get_ssid(drv->wext, ssid);
1705 }
1706
1707
1708 static struct wpa_scan_results *
1709 wpa_driver_madwifi_get_scan_results(void *priv)
1710 {
1711         struct wpa_driver_madwifi_data *drv = priv;
1712         return wpa_driver_wext_get_scan_results(drv->wext);
1713 }
1714
1715
1716 static int wpa_driver_madwifi_set_operstate(void *priv, int state)
1717 {
1718         struct wpa_driver_madwifi_data *drv = priv;
1719         return wpa_driver_wext_set_operstate(drv->wext, state);
1720 }
1721
1722
1723 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1724                                                size_t ies_len)
1725 {
1726         struct ieee80211req_getset_appiebuf *probe_req_ie;
1727         int ret;
1728
1729         probe_req_ie = os_malloc(sizeof(*probe_req_ie) + ies_len);
1730         if (probe_req_ie == NULL)
1731                 return -1;
1732
1733         probe_req_ie->app_frmtype = IEEE80211_APPIE_FRAME_PROBE_REQ;
1734         probe_req_ie->app_buflen = ies_len;
1735         os_memcpy(probe_req_ie->app_buf, ies, ies_len);
1736
1737         ret = set80211priv(priv, IEEE80211_IOCTL_SET_APPIEBUF, probe_req_ie,
1738                            sizeof(struct ieee80211req_getset_appiebuf) +
1739                            ies_len, 1);
1740
1741         os_free(probe_req_ie);
1742
1743         return ret;
1744 }
1745
1746
1747 static void * wpa_driver_madwifi_init(void *ctx, const char *ifname)
1748 {
1749         struct wpa_driver_madwifi_data *drv;
1750
1751         drv = os_zalloc(sizeof(*drv));
1752         if (drv == NULL)
1753                 return NULL;
1754         drv->wext = wpa_driver_wext_init(ctx, ifname);
1755         if (drv->wext == NULL)
1756                 goto fail;
1757
1758         drv->ctx = ctx;
1759         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1760         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1761         if (drv->sock < 0)
1762                 goto fail2;
1763
1764         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0) {
1765                 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1766                            "roaming", __FUNCTION__);
1767                 goto fail3;
1768         }
1769
1770         if (set80211param(drv, IEEE80211_PARAM_WPA, 3, 1) < 0) {
1771                 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support",
1772                            __FUNCTION__);
1773                 goto fail3;
1774         }
1775
1776         return drv;
1777
1778 fail3:
1779         close(drv->sock);
1780 fail2:
1781         wpa_driver_wext_deinit(drv->wext);
1782 fail:
1783         os_free(drv);
1784         return NULL;
1785 }
1786
1787
1788 static void wpa_driver_madwifi_deinit(void *priv)
1789 {
1790         struct wpa_driver_madwifi_data *drv = priv;
1791
1792         if (wpa_driver_madwifi_set_wpa_ie(drv, NULL, 0) < 0) {
1793                 wpa_printf(MSG_DEBUG, "%s: failed to clear WPA IE",
1794                            __FUNCTION__);
1795         }
1796         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0) {
1797                 wpa_printf(MSG_DEBUG, "%s: failed to enable driver-based "
1798                            "roaming", __FUNCTION__);
1799         }
1800         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, 0, 1) < 0) {
1801                 wpa_printf(MSG_DEBUG, "%s: failed to disable forced Privacy "
1802                            "flag", __FUNCTION__);
1803         }
1804         if (set80211param(drv, IEEE80211_PARAM_WPA, 0, 1) < 0) {
1805                 wpa_printf(MSG_DEBUG, "%s: failed to disable WPA",
1806                            __FUNCTION__);
1807         }
1808
1809         wpa_driver_wext_deinit(drv->wext);
1810
1811         close(drv->sock);
1812         os_free(drv);
1813 }
1814
1815 #endif /* HOSTAPD */
1816
1817
1818 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
1819         .name                   = "madwifi",
1820         .desc                   = "MADWIFI 802.11 support (Atheros, etc.)",
1821         .set_key                = wpa_driver_madwifi_set_key,
1822 #ifdef HOSTAPD
1823         .hapd_init              = madwifi_init,
1824         .hapd_deinit            = madwifi_deinit,
1825         .set_ieee8021x          = madwifi_set_ieee8021x,
1826         .set_privacy            = madwifi_set_privacy,
1827         .get_seqnum             = madwifi_get_seqnum,
1828         .flush                  = madwifi_flush,
1829         .set_generic_elem       = madwifi_set_opt_ie,
1830         .sta_set_flags          = madwifi_sta_set_flags,
1831         .read_sta_data          = madwifi_read_sta_driver_data,
1832         .hapd_send_eapol        = madwifi_send_eapol,
1833         .sta_disassoc           = madwifi_sta_disassoc,
1834         .sta_deauth             = madwifi_sta_deauth,
1835         .hapd_set_ssid          = madwifi_set_ssid,
1836         .hapd_get_ssid          = madwifi_get_ssid,
1837         .hapd_set_countermeasures       = madwifi_set_countermeasures,
1838         .sta_clear_stats        = madwifi_sta_clear_stats,
1839         .commit                 = madwifi_commit,
1840         .set_ap_wps_ie          = madwifi_set_ap_wps_ie,
1841 #else /* HOSTAPD */
1842         .get_bssid              = wpa_driver_madwifi_get_bssid,
1843         .get_ssid               = wpa_driver_madwifi_get_ssid,
1844         .init                   = wpa_driver_madwifi_init,
1845         .deinit                 = wpa_driver_madwifi_deinit,
1846         .set_countermeasures    = wpa_driver_madwifi_set_countermeasures,
1847         .scan2                  = wpa_driver_madwifi_scan,
1848         .get_scan_results2      = wpa_driver_madwifi_get_scan_results,
1849         .deauthenticate         = wpa_driver_madwifi_deauthenticate,
1850         .disassociate           = wpa_driver_madwifi_disassociate,
1851         .associate              = wpa_driver_madwifi_associate,
1852         .set_operstate          = wpa_driver_madwifi_set_operstate,
1853 #endif /* HOSTAPD */
1854 };