www.project-moonshot.org Git - mech_eap.orig/blob - 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                       const struct wpabuf *assocresp)
 792 {
 793         if (madwifi_set_wps_ie(priv, beacon ? wpabuf_head(beacon) : NULL,
 794                                beacon ? wpabuf_len(beacon) : 0,
 795                                IEEE80211_APPIE_FRAME_BEACON) < 0)
 796                 return -1;
 797         return madwifi_set_wps_ie(priv,
 798                                   proberesp ? wpabuf_head(proberesp) : NULL,
 799                                   proberesp ? wpabuf_len(proberesp) : 0,
 800                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 801 }
 802 #else /* CONFIG_WPS */
 803 #define madwifi_set_ap_wps_ie NULL
 804 #endif /* CONFIG_WPS */
 805
 806 static void
 807 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 808 {
 809         struct hostapd_data *hapd = drv->hapd;
 810         struct ieee80211req_wpaie ie;
 811         int ielen = 0;
 812         u8 *iebuf = NULL;
 813
 814         /*
 815          * Fetch negotiated WPA/RSN parameters from the system.
 816          */
 817         memset(&ie, 0, sizeof(ie));
 818         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 819         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 820                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE",
 821                            __func__);
 822                 goto no_ie;
 823         }
 824         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 825                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 826         iebuf = ie.wpa_ie;
 827         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 828          * Assume the IE was not included if the IE type is unknown. */
 829         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 830                 iebuf[1] = 0;
 831 #ifdef MADWIFI_NG
 832         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 833                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 834         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 835                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 836                  * set. This is needed for WPA2. */
 837                 iebuf = ie.rsn_ie;
 838                 if (iebuf[0] != WLAN_EID_RSN)
 839                         iebuf[1] = 0;
 840         }
 841 #endif /* MADWIFI_NG */
 842
 843         ielen = iebuf[1];
 844         if (ielen == 0)
 845                 iebuf = NULL;
 846         else
 847                 ielen += 2;
 848
 849 no_ie:
 850         drv_event_assoc(hapd, addr, iebuf, ielen);
 851
 852         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 853                 /* Cached accounting data is not valid anymore. */
 854                 memset(drv->acct_mac, 0, ETH_ALEN);
 855                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 856         }
 857 }
 858
 859 static void
 860 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 861                                        char *custom)
 862 {
 863         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 864
 865         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 866                 char *pos;
 867                 u8 addr[ETH_ALEN];
 868                 pos = strstr(custom, "addr=");
 869                 if (pos == NULL) {
 870                         wpa_printf(MSG_DEBUG,
 871                                    "MLME-MICHAELMICFAILURE.indication "
 872                                    "without sender address ignored");
 873                         return;
 874                 }
 875                 pos += 5;
 876                 if (hwaddr_aton(pos, addr) == 0) {
 877                         union wpa_event_data data;
 878                         os_memset(&data, 0, sizeof(data));
 879                         data.michael_mic_failure.unicast = 1;
 880                         data.michael_mic_failure.src = addr;
 881                         wpa_supplicant_event(drv->hapd,
 882                                              EVENT_MICHAEL_MIC_FAILURE, &data);
 883                 } else {
 884                         wpa_printf(MSG_DEBUG,
 885                                    "MLME-MICHAELMICFAILURE.indication "
 886                                    "with invalid MAC address");
 887                 }
 888         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 889                 char *key, *value;
 890                 u32 val;
 891                 key = custom;
 892                 while ((key = strchr(key, '\n')) != NULL) {
 893                         key++;
 894                         value = strchr(key, '=');
 895                         if (value == NULL)
 896                                 continue;
 897                         *value++ = '\0';
 898                         val = strtoul(value, NULL, 10);
 899                         if (strcmp(key, "mac") == 0)
 900                                 hwaddr_aton(value, drv->acct_mac);
 901                         else if (strcmp(key, "rx_packets") == 0)
 902                                 drv->acct_data.rx_packets = val;
 903                         else if (strcmp(key, "tx_packets") == 0)
 904                                 drv->acct_data.tx_packets = val;
 905                         else if (strcmp(key, "rx_bytes") == 0)
 906                                 drv->acct_data.rx_bytes = val;
 907                         else if (strcmp(key, "tx_bytes") == 0)
 908                                 drv->acct_data.tx_bytes = val;
 909                         key = value;
 910                 }
 911         }
 912 }
 913
 914 static void
 915 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 916                                             char *data, int len)
 917 {
 918         struct iw_event iwe_buf, *iwe = &iwe_buf;
 919         char *pos, *end, *custom, *buf;
 920
 921         pos = data;
 922         end = data + len;
 923
 924         while (pos + IW_EV_LCP_LEN <= end) {
 925                 /* Event data may be unaligned, so make a local, aligned copy
 926                  * before processing. */
 927                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 928                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 929                            iwe->cmd, iwe->len);
 930                 if (iwe->len <= IW_EV_LCP_LEN)
 931                         return;
 932
 933                 custom = pos + IW_EV_POINT_LEN;
 934                 if (drv->we_version > 18 &&
 935                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 936                      iwe->cmd == IWEVCUSTOM)) {
 937                         /* WE-19 removed the pointer from struct iw_point */
 938                         char *dpos = (char *) &iwe_buf.u.data.length;
 939                         int dlen = dpos - (char *) &iwe_buf;
 940                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 941                                sizeof(struct iw_event) - dlen);
 942                 } else {
 943                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 944                         custom += IW_EV_POINT_OFF;
 945                 }
 946
 947                 switch (iwe->cmd) {
 948                 case IWEVEXPIRED:
 949                         drv_event_disassoc(drv->hapd,
 950                                            (u8 *) iwe->u.addr.sa_data);
 951                         break;
 952                 case IWEVREGISTERED:
 953                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 954                         break;
 955                 case IWEVCUSTOM:
 956                         if (custom + iwe->u.data.length > end)
 957                                 return;
 958                         buf = malloc(iwe->u.data.length + 1);
 959                         if (buf == NULL)
 960                                 return;         /* XXX */
 961                         memcpy(buf, custom, iwe->u.data.length);
 962                         buf[iwe->u.data.length] = '\0';
 963                         madwifi_wireless_event_wireless_custom(drv, buf);
 964                         free(buf);
 965                         break;
 966                 }
 967
 968                 pos += iwe->len;
 969         }
 970 }
 971
 972
 973 static void
 974 madwifi_wireless_event_rtm_newlink(void *ctx, struct ifinfomsg *ifi,
 975                                    u8 *buf, size_t len)
 976 {
 977         struct madwifi_driver_data *drv = ctx;
 978         int attrlen, rta_len;
 979         struct rtattr *attr;
 980
 981         if (ifi->ifi_index != drv->ifindex)
 982                 return;
 983
 984         attrlen = len;
 985         attr = (struct rtattr *) buf;
 986
 987         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 988         while (RTA_OK(attr, attrlen)) {
 989                 if (attr->rta_type == IFLA_WIRELESS) {
 990                         madwifi_wireless_event_wireless(
 991                                 drv, ((char *) attr) + rta_len,
 992                                 attr->rta_len - rta_len);
 993                 }
 994                 attr = RTA_NEXT(attr, attrlen);
 995         }
 996 }
 997
 998
 999 static int
1000 madwifi_get_we_version(struct madwifi_driver_data *drv)
1001 {
1002         struct iw_range *range;
1003         struct iwreq iwr;
1004         int minlen;
1005         size_t buflen;
1006
1007         drv->we_version = 0;
1008
1009         /*
1010          * Use larger buffer than struct iw_range in order to allow the
1011          * structure to grow in the future.
1012          */
1013         buflen = sizeof(struct iw_range) + 500;
1014         range = os_zalloc(buflen);
1015         if (range == NULL)
1016                 return -1;
1017
1018         memset(&iwr, 0, sizeof(iwr));
1019         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1020         iwr.u.data.pointer = (caddr_t) range;
1021         iwr.u.data.length = buflen;
1022
1023         minlen = ((char *) &range->enc_capa) - (char *) range +
1024                 sizeof(range->enc_capa);
1025
1026         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1027                 perror("ioctl[SIOCGIWRANGE]");
1028                 free(range);
1029                 return -1;
1030         } else if (iwr.u.data.length >= minlen &&
1031                    range->we_version_compiled >= 18) {
1032                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1033                            "WE(source)=%d enc_capa=0x%x",
1034                            range->we_version_compiled,
1035                            range->we_version_source,
1036                            range->enc_capa);
1037                 drv->we_version = range->we_version_compiled;
1038         }
1039
1040         free(range);
1041         return 0;
1042 }
1043
1044
1045 static int
1046 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1047 {
1048         struct netlink_config *cfg;
1049
1050         madwifi_get_we_version(drv);
1051
1052         cfg = os_zalloc(sizeof(*cfg));
1053         if (cfg == NULL)
1054                 return -1;
1055         cfg->ctx = drv;
1056         cfg->newlink_cb = madwifi_wireless_event_rtm_newlink;
1057         drv->netlink = netlink_init(cfg);
1058         if (drv->netlink == NULL) {
1059                 os_free(cfg);
1060                 return -1;
1061         }
1062
1063         return 0;
1064 }
1065
1066
1067 static int
1068 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1069                    int encrypt, const u8 *own_addr)
1070 {
1071         struct madwifi_driver_data *drv = priv;
1072         unsigned char buf[3000];
1073         unsigned char *bp = buf;
1074         struct l2_ethhdr *eth;
1075         size_t len;
1076         int status;
1077
1078         /*
1079          * Prepend the Ethernet header.  If the caller left us
1080          * space at the front we could just insert it but since
1081          * we don't know we copy to a local buffer.  Given the frequency
1082          * and size of frames this probably doesn't matter.
1083          */
1084         len = data_len + sizeof(struct l2_ethhdr);
1085         if (len > sizeof(buf)) {
1086                 bp = malloc(len);
1087                 if (bp == NULL) {
1088                         printf("EAPOL frame discarded, cannot malloc temp "
1089                                "buffer of size %lu!\n", (unsigned long) len);
1090                         return -1;
1091                 }
1092         }
1093         eth = (struct l2_ethhdr *) bp;
1094         memcpy(eth->h_dest, addr, ETH_ALEN);
1095         memcpy(eth->h_source, own_addr, ETH_ALEN);
1096         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1097         memcpy(eth+1, data, data_len);
1098
1099         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1100
1101         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1102
1103         if (bp != buf)
1104                 free(bp);
1105         return status;
1106 }
1107
1108 static void
1109 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1110 {
1111         struct madwifi_driver_data *drv = ctx;
1112         drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
1113                            len - sizeof(struct l2_ethhdr));
1114 }
1115
1116 static void *
1117 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1118 {
1119         struct madwifi_driver_data *drv;
1120         struct ifreq ifr;
1121         struct iwreq iwr;
1122         char brname[IFNAMSIZ];
1123
1124         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1125         if (drv == NULL) {
1126                 printf("Could not allocate memory for madwifi driver data\n");
1127                 return NULL;
1128         }
1129
1130         drv->hapd = hapd;
1131         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1132         if (drv->ioctl_sock < 0) {
1133                 perror("socket[PF_INET,SOCK_DGRAM]");
1134                 goto bad;
1135         }
1136         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1137
1138         memset(&ifr, 0, sizeof(ifr));
1139         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1140         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1141                 perror("ioctl(SIOCGIFINDEX)");
1142                 goto bad;
1143         }
1144         drv->ifindex = ifr.ifr_ifindex;
1145
1146         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1147                                         handle_read, drv, 1);
1148         if (drv->sock_xmit == NULL)
1149                 goto bad;
1150         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1151                 goto bad;
1152         if (params->bridge[0]) {
1153                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1154                            params->bridge[0]);
1155                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1156                                                 ETH_P_EAPOL, handle_read, drv,
1157                                                 1);
1158                 if (drv->sock_recv == NULL)
1159                         goto bad;
1160         } else if (linux_br_get(brname, drv->iface) == 0) {
1161                 wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
1162                            "EAPOL receive", brname);
1163                 drv->sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
1164                                                 handle_read, drv, 1);
1165                 if (drv->sock_recv == NULL)
1166                         goto bad;
1167         } else
1168                 drv->sock_recv = drv->sock_xmit;
1169
1170         memset(&iwr, 0, sizeof(iwr));
1171         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1172
1173         iwr.u.mode = IW_MODE_MASTER;
1174
1175         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1176                 perror("ioctl[SIOCSIWMODE]");
1177                 printf("Could not set interface to master mode!\n");
1178                 goto bad;
1179         }
1180
1181         /* mark down during setup */
1182         linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1183         madwifi_set_privacy(drv, 0); /* default to no privacy */
1184
1185         madwifi_receive_probe_req(drv);
1186
1187         if (madwifi_wireless_event_init(drv))
1188                 goto bad;
1189
1190         return drv;
1191 bad:
1192         if (drv->sock_xmit != NULL)
1193                 l2_packet_deinit(drv->sock_xmit);
1194         if (drv->ioctl_sock >= 0)
1195                 close(drv->ioctl_sock);
1196         if (drv != NULL)
1197                 free(drv);
1198         return NULL;
1199 }
1200
1201
1202 static void
1203 madwifi_deinit(void *priv)
1204 {
1205         struct madwifi_driver_data *drv = priv;
1206
1207         netlink_deinit(drv->netlink);
1208         (void) linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1209         if (drv->ioctl_sock >= 0)
1210                 close(drv->ioctl_sock);
1211         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1212                 l2_packet_deinit(drv->sock_recv);
1213         if (drv->sock_xmit != NULL)
1214                 l2_packet_deinit(drv->sock_xmit);
1215         if (drv->sock_raw)
1216                 l2_packet_deinit(drv->sock_raw);
1217         free(drv);
1218 }
1219
1220 static int
1221 madwifi_set_ssid(void *priv, const u8 *buf, int len)
1222 {
1223         struct madwifi_driver_data *drv = priv;
1224         struct iwreq iwr;
1225
1226         memset(&iwr, 0, sizeof(iwr));
1227         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1228         iwr.u.essid.flags = 1; /* SSID active */
1229         iwr.u.essid.pointer = (caddr_t) buf;
1230         iwr.u.essid.length = len + 1;
1231
1232         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1233                 perror("ioctl[SIOCSIWESSID]");
1234                 printf("len=%d\n", len);
1235                 return -1;
1236         }
1237         return 0;
1238 }
1239
1240 static int
1241 madwifi_get_ssid(void *priv, u8 *buf, int len)
1242 {
1243         struct madwifi_driver_data *drv = priv;
1244         struct iwreq iwr;
1245         int ret = 0;
1246
1247         memset(&iwr, 0, sizeof(iwr));
1248         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1249         iwr.u.essid.pointer = (caddr_t) buf;
1250         iwr.u.essid.length = len;
1251
1252         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1253                 perror("ioctl[SIOCGIWESSID]");
1254                 ret = -1;
1255         } else
1256                 ret = iwr.u.essid.length;
1257
1258         return ret;
1259 }
1260
1261 static int
1262 madwifi_set_countermeasures(void *priv, int enabled)
1263 {
1264         struct madwifi_driver_data *drv = priv;
1265         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1266         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1267 }
1268
1269 static int
1270 madwifi_commit(void *priv)
1271 {
1272         struct madwifi_driver_data *drv = priv;
1273         return linux_set_iface_flags(drv->ioctl_sock, drv->iface, 1);
1274 }
1275
1276 #else /* HOSTAPD */
1277
1278 struct wpa_driver_madwifi_data {
1279         void *wext; /* private data for driver_wext */
1280         void *ctx;
1281         char ifname[IFNAMSIZ + 1];
1282         int sock;
1283 };
1284
1285 static int wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg);
1286 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1287                                                size_t ies_len);
1288
1289
1290 static int
1291 set80211priv(struct wpa_driver_madwifi_data *drv, int op, void *data, int len,
1292              int show_err)
1293 {
1294         struct iwreq iwr;
1295
1296         os_memset(&iwr, 0, sizeof(iwr));
1297         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1298         if (len < IFNAMSIZ &&
1299             op != IEEE80211_IOCTL_SET_APPIEBUF) {
1300                 /*
1301                  * Argument data fits inline; put it there.
1302                  */
1303                 os_memcpy(iwr.u.name, data, len);
1304         } else {
1305                 /*
1306                  * Argument data too big for inline transfer; setup a
1307                  * parameter block instead; the kernel will transfer
1308                  * the data for the driver.
1309                  */
1310                 iwr.u.data.pointer = data;
1311                 iwr.u.data.length = len;
1312         }
1313
1314         if (ioctl(drv->sock, op, &iwr) < 0) {
1315                 if (show_err) {
1316 #ifdef MADWIFI_NG
1317                         int first = IEEE80211_IOCTL_SETPARAM;
1318                         int last = IEEE80211_IOCTL_KICKMAC;
1319                         static const char *opnames[] = {
1320                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1321                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1322                                 "ioctl[IEEE80211_IOCTL_SETMODE]",
1323                                 "ioctl[IEEE80211_IOCTL_GETMODE]",
1324                                 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
1325                                 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
1326                                 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
1327                                 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
1328                                 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
1329                                 NULL,
1330                                 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
1331                                 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
1332                                 NULL,
1333                                 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
1334                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1335                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1336                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1337                                 NULL,
1338                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1339                                 NULL,
1340                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1341                                 NULL,
1342                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1343                                 NULL,
1344                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1345                                 NULL,
1346                                 "ioctl[IEEE80211_IOCTL_WDSMAC]",
1347                                 NULL,
1348                                 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
1349                                 NULL,
1350                                 "ioctl[IEEE80211_IOCTL_KICKMAC]",
1351                         };
1352 #else /* MADWIFI_NG */
1353                         int first = IEEE80211_IOCTL_SETPARAM;
1354                         int last = IEEE80211_IOCTL_CHANLIST;
1355                         static const char *opnames[] = {
1356                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1357                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1358                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1359                                 "ioctl[IEEE80211_IOCTL_GETKEY]",
1360                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1361                                 NULL,
1362                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1363                                 NULL,
1364                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1365                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1366                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1367                                 NULL,
1368                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1369                                 NULL,
1370                                 "ioctl[IEEE80211_IOCTL_CHANLIST]",
1371                         };
1372 #endif /* MADWIFI_NG */
1373                         int idx = op - first;
1374                         if (first <= op && op <= last &&
1375                             idx < (int) (sizeof(opnames) / sizeof(opnames[0]))
1376                             && opnames[idx])
1377                                 perror(opnames[idx]);
1378                         else
1379                                 perror("ioctl[unknown???]");
1380                 }
1381                 return -1;
1382         }
1383         return 0;
1384 }
1385
1386 static int
1387 set80211param(struct wpa_driver_madwifi_data *drv, int op, int arg,
1388               int show_err)
1389 {
1390         struct iwreq iwr;
1391
1392         os_memset(&iwr, 0, sizeof(iwr));
1393         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1394         iwr.u.mode = op;
1395         os_memcpy(iwr.u.name+sizeof(u32), &arg, sizeof(arg));
1396
1397         if (ioctl(drv->sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
1398                 if (show_err)
1399                         perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
1400                 return -1;
1401         }
1402         return 0;
1403 }
1404
1405 static int
1406 wpa_driver_madwifi_set_wpa_ie(struct wpa_driver_madwifi_data *drv,
1407                               const u8 *wpa_ie, size_t wpa_ie_len)
1408 {
1409         struct iwreq iwr;
1410
1411         os_memset(&iwr, 0, sizeof(iwr));
1412         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1413         /* NB: SETOPTIE is not fixed-size so must not be inlined */
1414         iwr.u.data.pointer = (void *) wpa_ie;
1415         iwr.u.data.length = wpa_ie_len;
1416
1417         if (ioctl(drv->sock, IEEE80211_IOCTL_SETOPTIE, &iwr) < 0) {
1418                 perror("ioctl[IEEE80211_IOCTL_SETOPTIE]");
1419                 return -1;
1420         }
1421         return 0;
1422 }
1423
1424 static int
1425 wpa_driver_madwifi_del_key(struct wpa_driver_madwifi_data *drv, int key_idx,
1426                            const u8 *addr)
1427 {
1428         struct ieee80211req_del_key wk;
1429
1430         wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __FUNCTION__, key_idx);
1431         os_memset(&wk, 0, sizeof(wk));
1432         wk.idk_keyix = key_idx;
1433         if (addr != NULL)
1434                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
1435
1436         return set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk), 1);
1437 }
1438
1439 static int
1440 wpa_driver_madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
1441                            const u8 *addr, int key_idx, int set_tx,
1442                            const u8 *seq, size_t seq_len,
1443                            const u8 *key, size_t key_len)
1444 {
1445         struct wpa_driver_madwifi_data *drv = priv;
1446         struct ieee80211req_key wk;
1447         char *alg_name;
1448         u_int8_t cipher;
1449
1450         if (alg == WPA_ALG_NONE)
1451                 return wpa_driver_madwifi_del_key(drv, key_idx, addr);
1452
1453         switch (alg) {
1454         case WPA_ALG_WEP:
1455                 if (addr == NULL || os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1456                                               ETH_ALEN) == 0) {
1457                         /*
1458                          * madwifi did not seem to like static WEP key
1459                          * configuration with IEEE80211_IOCTL_SETKEY, so use
1460                          * Linux wireless extensions ioctl for this.
1461                          */
1462                         return wpa_driver_wext_set_key(ifname, drv->wext, alg,
1463                                                        addr, key_idx, set_tx,
1464                                                        seq, seq_len,
1465                                                        key, key_len);
1466                 }
1467                 alg_name = "WEP";
1468                 cipher = IEEE80211_CIPHER_WEP;
1469                 break;
1470         case WPA_ALG_TKIP:
1471                 alg_name = "TKIP";
1472                 cipher = IEEE80211_CIPHER_TKIP;
1473                 break;
1474         case WPA_ALG_CCMP:
1475                 alg_name = "CCMP";
1476                 cipher = IEEE80211_CIPHER_AES_CCM;
1477                 break;
1478         default:
1479                 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1480                         __FUNCTION__, alg);
1481                 return -1;
1482         }
1483
1484         wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
1485                    "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
1486                    (unsigned long) seq_len, (unsigned long) key_len);
1487
1488         if (seq_len > sizeof(u_int64_t)) {
1489                 wpa_printf(MSG_DEBUG, "%s: seq_len %lu too big",
1490                            __FUNCTION__, (unsigned long) seq_len);
1491                 return -2;
1492         }
1493         if (key_len > sizeof(wk.ik_keydata)) {
1494                 wpa_printf(MSG_DEBUG, "%s: key length %lu too big",
1495                            __FUNCTION__, (unsigned long) key_len);
1496                 return -3;
1497         }
1498
1499         os_memset(&wk, 0, sizeof(wk));
1500         wk.ik_type = cipher;
1501         wk.ik_flags = IEEE80211_KEY_RECV;
1502         if (addr == NULL ||
1503             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1504                 wk.ik_flags |= IEEE80211_KEY_GROUP;
1505         if (set_tx) {
1506                 wk.ik_flags |= IEEE80211_KEY_XMIT | IEEE80211_KEY_DEFAULT;
1507                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1508         } else
1509                 os_memset(wk.ik_macaddr, 0, IEEE80211_ADDR_LEN);
1510         wk.ik_keyix = key_idx;
1511         wk.ik_keylen = key_len;
1512 #ifdef WORDS_BIGENDIAN
1513 #define WPA_KEY_RSC_LEN 8
1514         {
1515                 size_t i;
1516                 u8 tmp[WPA_KEY_RSC_LEN];
1517                 os_memset(tmp, 0, sizeof(tmp));
1518                 for (i = 0; i < seq_len; i++)
1519                         tmp[WPA_KEY_RSC_LEN - i - 1] = seq[i];
1520                 os_memcpy(&wk.ik_keyrsc, tmp, WPA_KEY_RSC_LEN);
1521         }
1522 #else /* WORDS_BIGENDIAN */
1523         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1524 #endif /* WORDS_BIGENDIAN */
1525         os_memcpy(wk.ik_keydata, key, key_len);
1526
1527         return set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk), 1);
1528 }
1529
1530 static int
1531 wpa_driver_madwifi_set_countermeasures(void *priv, int enabled)
1532 {
1533         struct wpa_driver_madwifi_data *drv = priv;
1534         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1535         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled, 1);
1536 }
1537
1538 static int
1539 wpa_driver_madwifi_deauthenticate(void *priv, const u8 *addr, int reason_code)
1540 {
1541         struct wpa_driver_madwifi_data *drv = priv;
1542         struct ieee80211req_mlme mlme;
1543
1544         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1545         mlme.im_op = IEEE80211_MLME_DEAUTH;
1546         mlme.im_reason = reason_code;
1547         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1548         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1549 }
1550
1551 static int
1552 wpa_driver_madwifi_disassociate(void *priv, const u8 *addr, int reason_code)
1553 {
1554         struct wpa_driver_madwifi_data *drv = priv;
1555         struct ieee80211req_mlme mlme;
1556
1557         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1558         mlme.im_op = IEEE80211_MLME_DISASSOC;
1559         mlme.im_reason = reason_code;
1560         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1561         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1562 }
1563
1564 static int
1565 wpa_driver_madwifi_associate(void *priv,
1566                              struct wpa_driver_associate_params *params)
1567 {
1568         struct wpa_driver_madwifi_data *drv = priv;
1569         struct ieee80211req_mlme mlme;
1570         int ret = 0, privacy = 1;
1571
1572         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1573
1574         if (set80211param(drv, IEEE80211_PARAM_DROPUNENCRYPTED,
1575                           params->drop_unencrypted, 1) < 0)
1576                 ret = -1;
1577         if (wpa_driver_madwifi_set_auth_alg(drv, params->auth_alg) < 0)
1578                 ret = -1;
1579
1580         /*
1581          * NB: Don't need to set the freq or cipher-related state as
1582          *     this is implied by the bssid which is used to locate
1583          *     the scanned node state which holds it.  The ssid is
1584          *     needed to disambiguate an AP that broadcasts multiple
1585          *     ssid's but uses the same bssid.
1586          */
1587         /* XXX error handling is wrong but unclear what to do... */
1588         if (wpa_driver_madwifi_set_wpa_ie(drv, params->wpa_ie,
1589                                           params->wpa_ie_len) < 0)
1590                 ret = -1;
1591
1592         if (params->pairwise_suite == CIPHER_NONE &&
1593             params->group_suite == CIPHER_NONE &&
1594             params->key_mgmt_suite == KEY_MGMT_NONE &&
1595             params->wpa_ie_len == 0)
1596                 privacy = 0;
1597
1598         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, privacy, 1) < 0)
1599                 ret = -1;
1600
1601         if (params->wpa_ie_len &&
1602             set80211param(drv, IEEE80211_PARAM_WPA,
1603                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1, 1) < 0)
1604                 ret = -1;
1605
1606         if (params->bssid == NULL) {
1607                 /* ap_scan=2 mode - driver takes care of AP selection and
1608                  * roaming */
1609                 /* FIX: this does not seem to work; would probably need to
1610                  * change something in the driver */
1611                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0)
1612                         ret = -1;
1613
1614                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1615                                              params->ssid_len) < 0)
1616                         ret = -1;
1617         } else {
1618                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0)
1619                         ret = -1;
1620                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1621                                              params->ssid_len) < 0)
1622                         ret = -1;
1623                 os_memset(&mlme, 0, sizeof(mlme));
1624                 mlme.im_op = IEEE80211_MLME_ASSOC;
1625                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1626                 if (set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
1627                                  sizeof(mlme), 1) < 0) {
1628                         wpa_printf(MSG_DEBUG, "%s: SETMLME[ASSOC] failed",
1629                                    __func__);
1630                         ret = -1;
1631                 }
1632         }
1633
1634         return ret;
1635 }
1636
1637 static int
1638 wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg)
1639 {
1640         struct wpa_driver_madwifi_data *drv = priv;
1641         int authmode;
1642
1643         if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1644             (auth_alg & WPA_AUTH_ALG_SHARED))
1645                 authmode = IEEE80211_AUTH_AUTO;
1646         else if (auth_alg & WPA_AUTH_ALG_SHARED)
1647                 authmode = IEEE80211_AUTH_SHARED;
1648         else
1649                 authmode = IEEE80211_AUTH_OPEN;
1650
1651         return set80211param(drv, IEEE80211_PARAM_AUTHMODE, authmode, 1);
1652 }
1653
1654 static int
1655 wpa_driver_madwifi_scan(void *priv, struct wpa_driver_scan_params *params)
1656 {
1657         struct wpa_driver_madwifi_data *drv = priv;
1658         struct iwreq iwr;
1659         int ret = 0;
1660         const u8 *ssid = params->ssids[0].ssid;
1661         size_t ssid_len = params->ssids[0].ssid_len;
1662
1663         wpa_driver_madwifi_set_probe_req_ie(drv, params->extra_ies,
1664                                             params->extra_ies_len);
1665
1666         os_memset(&iwr, 0, sizeof(iwr));
1667         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1668
1669         /* set desired ssid before scan */
1670         /* FIX: scan should not break the current association, so using
1671          * set_ssid may not be the best way of doing this.. */
1672         if (wpa_driver_wext_set_ssid(drv->wext, ssid, ssid_len) < 0)
1673                 ret = -1;
1674
1675         if (ioctl(drv->sock, SIOCSIWSCAN, &iwr) < 0) {
1676                 perror("ioctl[SIOCSIWSCAN]");
1677                 ret = -1;
1678         }
1679
1680         /*
1681          * madwifi delivers a scan complete event so no need to poll, but
1682          * register a backup timeout anyway to make sure that we recover even
1683          * if the driver does not send this event for any reason. This timeout
1684          * will only be used if the event is not delivered (event handler will
1685          * cancel the timeout).
1686          */
1687         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv->wext,
1688                              drv->ctx);
1689         eloop_register_timeout(30, 0, wpa_driver_wext_scan_timeout, drv->wext,
1690                                drv->ctx);
1691
1692         return ret;
1693 }
1694
1695 static int wpa_driver_madwifi_get_bssid(void *priv, u8 *bssid)
1696 {
1697         struct wpa_driver_madwifi_data *drv = priv;
1698         return wpa_driver_wext_get_bssid(drv->wext, bssid);
1699 }
1700
1701
1702 static int wpa_driver_madwifi_get_ssid(void *priv, u8 *ssid)
1703 {
1704         struct wpa_driver_madwifi_data *drv = priv;
1705         return wpa_driver_wext_get_ssid(drv->wext, ssid);
1706 }
1707
1708
1709 static struct wpa_scan_results *
1710 wpa_driver_madwifi_get_scan_results(void *priv)
1711 {
1712         struct wpa_driver_madwifi_data *drv = priv;
1713         return wpa_driver_wext_get_scan_results(drv->wext);
1714 }
1715
1716
1717 static int wpa_driver_madwifi_set_operstate(void *priv, int state)
1718 {
1719         struct wpa_driver_madwifi_data *drv = priv;
1720         return wpa_driver_wext_set_operstate(drv->wext, state);
1721 }
1722
1723
1724 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1725                                                size_t ies_len)
1726 {
1727         struct ieee80211req_getset_appiebuf *probe_req_ie;
1728         int ret;
1729
1730         probe_req_ie = os_malloc(sizeof(*probe_req_ie) + ies_len);
1731         if (probe_req_ie == NULL)
1732                 return -1;
1733
1734         probe_req_ie->app_frmtype = IEEE80211_APPIE_FRAME_PROBE_REQ;
1735         probe_req_ie->app_buflen = ies_len;
1736         os_memcpy(probe_req_ie->app_buf, ies, ies_len);
1737
1738         ret = set80211priv(priv, IEEE80211_IOCTL_SET_APPIEBUF, probe_req_ie,
1739                            sizeof(struct ieee80211req_getset_appiebuf) +
1740                            ies_len, 1);
1741
1742         os_free(probe_req_ie);
1743
1744         return ret;
1745 }
1746
1747
1748 static void * wpa_driver_madwifi_init(void *ctx, const char *ifname)
1749 {
1750         struct wpa_driver_madwifi_data *drv;
1751
1752         drv = os_zalloc(sizeof(*drv));
1753         if (drv == NULL)
1754                 return NULL;
1755         drv->wext = wpa_driver_wext_init(ctx, ifname);
1756         if (drv->wext == NULL)
1757                 goto fail;
1758
1759         drv->ctx = ctx;
1760         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1761         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1762         if (drv->sock < 0)
1763                 goto fail2;
1764
1765         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0) {
1766                 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1767                            "roaming", __FUNCTION__);
1768                 goto fail3;
1769         }
1770
1771         if (set80211param(drv, IEEE80211_PARAM_WPA, 3, 1) < 0) {
1772                 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support",
1773                            __FUNCTION__);
1774                 goto fail3;
1775         }
1776
1777         return drv;
1778
1779 fail3:
1780         close(drv->sock);
1781 fail2:
1782         wpa_driver_wext_deinit(drv->wext);
1783 fail:
1784         os_free(drv);
1785         return NULL;
1786 }
1787
1788
1789 static void wpa_driver_madwifi_deinit(void *priv)
1790 {
1791         struct wpa_driver_madwifi_data *drv = priv;
1792
1793         if (wpa_driver_madwifi_set_wpa_ie(drv, NULL, 0) < 0) {
1794                 wpa_printf(MSG_DEBUG, "%s: failed to clear WPA IE",
1795                            __FUNCTION__);
1796         }
1797         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0) {
1798                 wpa_printf(MSG_DEBUG, "%s: failed to enable driver-based "
1799                            "roaming", __FUNCTION__);
1800         }
1801         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, 0, 1) < 0) {
1802                 wpa_printf(MSG_DEBUG, "%s: failed to disable forced Privacy "
1803                            "flag", __FUNCTION__);
1804         }
1805         if (set80211param(drv, IEEE80211_PARAM_WPA, 0, 1) < 0) {
1806                 wpa_printf(MSG_DEBUG, "%s: failed to disable WPA",
1807                            __FUNCTION__);
1808         }
1809
1810         wpa_driver_wext_deinit(drv->wext);
1811
1812         close(drv->sock);
1813         os_free(drv);
1814 }
1815
1816 #endif /* HOSTAPD */
1817
1818
1819 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
1820         .name                   = "madwifi",
1821         .desc                   = "MADWIFI 802.11 support (Atheros, etc.)",
1822         .set_key                = wpa_driver_madwifi_set_key,
1823 #ifdef HOSTAPD
1824         .hapd_init              = madwifi_init,
1825         .hapd_deinit            = madwifi_deinit,
1826         .set_ieee8021x          = madwifi_set_ieee8021x,
1827         .set_privacy            = madwifi_set_privacy,
1828         .get_seqnum             = madwifi_get_seqnum,
1829         .flush                  = madwifi_flush,
1830         .set_generic_elem       = madwifi_set_opt_ie,
1831         .sta_set_flags          = madwifi_sta_set_flags,
1832         .read_sta_data          = madwifi_read_sta_driver_data,
1833         .hapd_send_eapol        = madwifi_send_eapol,
1834         .sta_disassoc           = madwifi_sta_disassoc,
1835         .sta_deauth             = madwifi_sta_deauth,
1836         .hapd_set_ssid          = madwifi_set_ssid,
1837         .hapd_get_ssid          = madwifi_get_ssid,
1838         .hapd_set_countermeasures       = madwifi_set_countermeasures,
1839         .sta_clear_stats        = madwifi_sta_clear_stats,
1840         .commit                 = madwifi_commit,
1841         .set_ap_wps_ie          = madwifi_set_ap_wps_ie,
1842 #else /* HOSTAPD */
1843         .get_bssid              = wpa_driver_madwifi_get_bssid,
1844         .get_ssid               = wpa_driver_madwifi_get_ssid,
1845         .init                   = wpa_driver_madwifi_init,
1846         .deinit                 = wpa_driver_madwifi_deinit,
1847         .set_countermeasures    = wpa_driver_madwifi_set_countermeasures,
1848         .scan2                  = wpa_driver_madwifi_scan,
1849         .get_scan_results2      = wpa_driver_madwifi_get_scan_results,
1850         .deauthenticate         = wpa_driver_madwifi_deauthenticate,
1851         .disassociate           = wpa_driver_madwifi_disassociate,
1852         .associate              = wpa_driver_madwifi_associate,
1853         .set_operstate          = wpa_driver_madwifi_set_operstate,
1854 #endif /* HOSTAPD */
1855 };