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 "l2_packet/l2_packet.h"
  77 #include "../../hostapd/sta_flags.h"
  78
  79
  80 struct madwifi_driver_data {
  81         struct hostapd_data *hapd;              /* back pointer */
  82
  83         char    iface[IFNAMSIZ + 1];
  84         int     ifindex;
  85         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
  86         struct l2_packet_data *sock_recv;       /* raw packet recv socket */
  87         int     ioctl_sock;                     /* socket for ioctl() use */
  88         int     wext_sock;                      /* socket for wireless events */
  89         int     we_version;
  90         u8      acct_mac[ETH_ALEN];
  91         struct hostap_sta_driver_data acct_data;
  92
  93         struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
  94 };
  95
  96 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
  97                               int reason_code);
  98
  99 static int
 100 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
 101 {
 102         struct iwreq iwr;
 103         int do_inline = len < IFNAMSIZ;
 104
 105         memset(&iwr, 0, sizeof(iwr));
 106         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 107 #ifdef IEEE80211_IOCTL_FILTERFRAME
 108         /* FILTERFRAME must be NOT inline, regardless of size. */
 109         if (op == IEEE80211_IOCTL_FILTERFRAME)
 110                 do_inline = 0;
 111 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 112         if (op == IEEE80211_IOCTL_SET_APPIEBUF)
 113                 do_inline = 0;
 114         if (do_inline) {
 115                 /*
 116                  * Argument data fits inline; put it there.
 117                  */
 118                 memcpy(iwr.u.name, data, len);
 119         } else {
 120                 /*
 121                  * Argument data too big for inline transfer; setup a
 122                  * parameter block instead; the kernel will transfer
 123                  * the data for the driver.
 124                  */
 125                 iwr.u.data.pointer = data;
 126                 iwr.u.data.length = len;
 127         }
 128
 129         if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
 130 #ifdef MADWIFI_NG
 131                 int first = IEEE80211_IOCTL_SETPARAM;
 132                 static const char *opnames[] = {
 133                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 134                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 135                         "ioctl[IEEE80211_IOCTL_SETMODE]",
 136                         "ioctl[IEEE80211_IOCTL_GETMODE]",
 137                         "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
 138                         "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
 139                         "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
 140                         "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
 141                         "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
 142                         "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
 143                         "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
 144                         "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
 145                         "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
 146                         "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
 147                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 148                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 149                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 150                         NULL,
 151                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 152                         NULL,
 153                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 154                         NULL,
 155                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 156                         NULL,
 157                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 158                         NULL,
 159                         "ioctl[IEEE80211_IOCTL_WDSMAC]",
 160                         NULL,
 161                         "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
 162                         NULL,
 163                         "ioctl[IEEE80211_IOCTL_KICKMAC]",
 164                 };
 165 #else /* MADWIFI_NG */
 166                 int first = IEEE80211_IOCTL_SETPARAM;
 167                 static const char *opnames[] = {
 168                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 169                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 170                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 171                         "ioctl[SIOCIWFIRSTPRIV+3]",
 172                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 173                         "ioctl[SIOCIWFIRSTPRIV+5]",
 174                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 175                         "ioctl[SIOCIWFIRSTPRIV+7]",
 176                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 177                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 178                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 179                         "ioctl[SIOCIWFIRSTPRIV+11]",
 180                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 181                         "ioctl[SIOCIWFIRSTPRIV+13]",
 182                         "ioctl[IEEE80211_IOCTL_CHANLIST]",
 183                         "ioctl[SIOCIWFIRSTPRIV+15]",
 184                         "ioctl[IEEE80211_IOCTL_GETRSN]",
 185                         "ioctl[SIOCIWFIRSTPRIV+17]",
 186                         "ioctl[IEEE80211_IOCTL_GETKEY]",
 187                 };
 188 #endif /* MADWIFI_NG */
 189                 int idx = op - first;
 190                 if (first <= op &&
 191                     idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
 192                     opnames[idx])
 193                         perror(opnames[idx]);
 194                 else
 195                         perror("ioctl[unknown???]");
 196                 return -1;
 197         }
 198         return 0;
 199 }
 200
 201 static int
 202 set80211param(struct madwifi_driver_data *drv, int op, int arg)
 203 {
 204         struct iwreq iwr;
 205
 206         memset(&iwr, 0, sizeof(iwr));
 207         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 208         iwr.u.mode = op;
 209         memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
 210
 211         if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 212                 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 213                 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
 214                            "arg %d)", __func__, op, arg);
 215                 return -1;
 216         }
 217         return 0;
 218 }
 219
 220 #ifndef CONFIG_NO_STDOUT_DEBUG
 221 static const char *
 222 ether_sprintf(const u8 *addr)
 223 {
 224         static char buf[sizeof(MACSTR)];
 225
 226         if (addr != NULL)
 227                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 228         else
 229                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 230         return buf;
 231 }
 232 #endif /* CONFIG_NO_STDOUT_DEBUG */
 233
 234 /*
 235  * Configure WPA parameters.
 236  */
 237 static int
 238 madwifi_configure_wpa(struct madwifi_driver_data *drv,
 239                       struct wpa_bss_params *params)
 240 {
 241         int v;
 242
 243         switch (params->wpa_group) {
 244         case WPA_CIPHER_CCMP:
 245                 v = IEEE80211_CIPHER_AES_CCM;
 246                 break;
 247         case WPA_CIPHER_TKIP:
 248                 v = IEEE80211_CIPHER_TKIP;
 249                 break;
 250         case WPA_CIPHER_WEP104:
 251                 v = IEEE80211_CIPHER_WEP;
 252                 break;
 253         case WPA_CIPHER_WEP40:
 254                 v = IEEE80211_CIPHER_WEP;
 255                 break;
 256         case WPA_CIPHER_NONE:
 257                 v = IEEE80211_CIPHER_NONE;
 258                 break;
 259         default:
 260                 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
 261                            params->wpa_group);
 262                 return -1;
 263         }
 264         wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
 265         if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
 266                 printf("Unable to set group key cipher to %u\n", v);
 267                 return -1;
 268         }
 269         if (v == IEEE80211_CIPHER_WEP) {
 270                 /* key length is done only for specific ciphers */
 271                 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 272                 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
 273                         printf("Unable to set group key length to %u\n", v);
 274                         return -1;
 275                 }
 276         }
 277
 278         v = 0;
 279         if (params->wpa_pairwise & WPA_CIPHER_CCMP)
 280                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 281         if (params->wpa_pairwise & WPA_CIPHER_TKIP)
 282                 v |= 1<<IEEE80211_CIPHER_TKIP;
 283         if (params->wpa_pairwise & WPA_CIPHER_NONE)
 284                 v |= 1<<IEEE80211_CIPHER_NONE;
 285         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 286         if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
 287                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 288                 return -1;
 289         }
 290
 291         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 292                    __func__, params->wpa_key_mgmt);
 293         if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
 294                           params->wpa_key_mgmt)) {
 295                 printf("Unable to set key management algorithms to 0x%x\n",
 296                         params->wpa_key_mgmt);
 297                 return -1;
 298         }
 299
 300         v = 0;
 301         if (params->rsn_preauth)
 302                 v |= BIT(0);
 303         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 304                    __func__, params->rsn_preauth);
 305         if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
 306                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 307                 return -1;
 308         }
 309
 310         wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
 311         if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
 312                 printf("Unable to set WPA to %u\n", params->wpa);
 313                 return -1;
 314         }
 315         return 0;
 316 }
 317
 318
 319 static int
 320 madwifi_set_iface_flags(void *priv, int dev_up)
 321 {
 322         struct madwifi_driver_data *drv = priv;
 323         struct ifreq ifr;
 324
 325         wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
 326
 327         if (drv->ioctl_sock < 0)
 328                 return -1;
 329
 330         memset(&ifr, 0, sizeof(ifr));
 331         os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
 332
 333         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
 334                 perror("ioctl[SIOCGIFFLAGS]");
 335                 return -1;
 336         }
 337
 338         if (dev_up)
 339                 ifr.ifr_flags |= IFF_UP;
 340         else
 341                 ifr.ifr_flags &= ~IFF_UP;
 342
 343         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
 344                 perror("ioctl[SIOCSIFFLAGS]");
 345                 return -1;
 346         }
 347
 348         return 0;
 349 }
 350
 351 static int
 352 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 353 {
 354         struct madwifi_driver_data *drv = priv;
 355
 356         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
 357
 358         if (!params->enabled) {
 359                 /* XXX restore state */
 360                 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 361                         IEEE80211_AUTH_AUTO);
 362         }
 363         if (!params->wpa && !params->ieee802_1x) {
 364                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 365                         HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
 366                 return -1;
 367         }
 368         if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
 369                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 370                         HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
 371                 return -1;
 372         }
 373         if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 374                 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 375                 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
 376                         HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
 377                 return -1;
 378         }
 379
 380         return 0;
 381 }
 382
 383 static int
 384 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
 385 {
 386         struct madwifi_driver_data *drv = priv;
 387
 388         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 389
 390         return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
 391 }
 392
 393 static int
 394 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
 395 {
 396         struct madwifi_driver_data *drv = priv;
 397         struct ieee80211req_mlme mlme;
 398         int ret;
 399
 400         wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
 401                    __func__, ether_sprintf(addr), authorized);
 402
 403         if (authorized)
 404                 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
 405         else
 406                 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
 407         mlme.im_reason = 0;
 408         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 409         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 410         if (ret < 0) {
 411                 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
 412                            __func__, authorized ? "" : "un", MAC2STR(addr));
 413         }
 414
 415         return ret;
 416 }
 417
 418 static int
 419 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
 420                       int flags_or, int flags_and)
 421 {
 422         /* For now, only support setting Authorized flag */
 423         if (flags_or & WLAN_STA_AUTHORIZED)
 424                 return madwifi_set_sta_authorized(priv, addr, 1);
 425         if (!(flags_and & WLAN_STA_AUTHORIZED))
 426                 return madwifi_set_sta_authorized(priv, addr, 0);
 427         return 0;
 428 }
 429
 430 static int
 431 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
 432 {
 433         struct madwifi_driver_data *drv = priv;
 434         struct ieee80211req_del_key wk;
 435         int ret;
 436
 437         wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
 438                    __func__, ether_sprintf(addr), key_idx);
 439
 440         memset(&wk, 0, sizeof(wk));
 441         if (addr != NULL) {
 442                 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 443                 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
 444         } else {
 445                 wk.idk_keyix = key_idx;
 446         }
 447
 448         ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
 449         if (ret < 0) {
 450                 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
 451                            " key_idx %d)", __func__, ether_sprintf(addr),
 452                            key_idx);
 453         }
 454
 455         return ret;
 456 }
 457
 458 static int
 459 wpa_driver_madwifi_set_key(const char *ifname, void *priv, wpa_alg alg,
 460                            const u8 *addr, int key_idx, int set_tx,
 461                            const u8 *seq, size_t seq_len,
 462                            const u8 *key, size_t key_len)
 463 {
 464         struct madwifi_driver_data *drv = priv;
 465         struct ieee80211req_key wk;
 466         u_int8_t cipher;
 467         int ret;
 468
 469         if (alg == WPA_ALG_NONE)
 470                 return madwifi_del_key(drv, addr, key_idx);
 471
 472         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
 473                    __func__, alg, ether_sprintf(addr), key_idx);
 474
 475         if (alg == WPA_ALG_WEP)
 476                 cipher = IEEE80211_CIPHER_WEP;
 477         else if (alg == WPA_ALG_TKIP)
 478                 cipher = IEEE80211_CIPHER_TKIP;
 479         else if (alg == WPA_ALG_CCMP)
 480                 cipher = IEEE80211_CIPHER_AES_CCM;
 481         else {
 482                 printf("%s: unknown/unsupported algorithm %d\n",
 483                         __func__, alg);
 484                 return -1;
 485         }
 486
 487         if (key_len > sizeof(wk.ik_keydata)) {
 488                 printf("%s: key length %lu too big\n", __func__,
 489                        (unsigned long) key_len);
 490                 return -3;
 491         }
 492
 493         memset(&wk, 0, sizeof(wk));
 494         wk.ik_type = cipher;
 495         wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
 496         if (addr == NULL) {
 497                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 498                 wk.ik_keyix = key_idx;
 499                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 500         } else {
 501                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 502                 wk.ik_keyix = IEEE80211_KEYIX_NONE;
 503         }
 504         wk.ik_keylen = key_len;
 505         memcpy(wk.ik_keydata, key, key_len);
 506
 507         ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
 508         if (ret < 0) {
 509                 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
 510                            " key_idx %d alg %d key_len %lu set_tx %d)",
 511                            __func__, ether_sprintf(wk.ik_macaddr), key_idx,
 512                            alg, (unsigned long) key_len, set_tx);
 513         }
 514
 515         return ret;
 516 }
 517
 518
 519 static int
 520 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 521                    u8 *seq)
 522 {
 523         struct madwifi_driver_data *drv = priv;
 524         struct ieee80211req_key wk;
 525
 526         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 527                    __func__, ether_sprintf(addr), idx);
 528
 529         memset(&wk, 0, sizeof(wk));
 530         if (addr == NULL)
 531                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 532         else
 533                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 534         wk.ik_keyix = idx;
 535
 536         if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
 537                 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
 538                            "(addr " MACSTR " key_idx %d)",
 539                            __func__, MAC2STR(wk.ik_macaddr), idx);
 540                 return -1;
 541         }
 542
 543 #ifdef WORDS_BIGENDIAN
 544         {
 545                 /*
 546                  * wk.ik_keytsc is in host byte order (big endian), need to
 547                  * swap it to match with the byte order used in WPA.
 548                  */
 549                 int i;
 550                 u8 tmp[WPA_KEY_RSC_LEN];
 551                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 552                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 553                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 554                 }
 555         }
 556 #else /* WORDS_BIGENDIAN */
 557         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 558 #endif /* WORDS_BIGENDIAN */
 559         return 0;
 560 }
 561
 562
 563 static int
 564 madwifi_flush(void *priv)
 565 {
 566 #ifdef MADWIFI_BSD
 567         u8 allsta[IEEE80211_ADDR_LEN];
 568         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 569         return madwifi_sta_deauth(priv, NULL, allsta,
 570                                   IEEE80211_REASON_AUTH_LEAVE);
 571 #else /* MADWIFI_BSD */
 572         return 0;               /* XXX */
 573 #endif /* MADWIFI_BSD */
 574 }
 575
 576
 577 static int
 578 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 579                              const u8 *addr)
 580 {
 581         struct madwifi_driver_data *drv = priv;
 582
 583 #ifdef MADWIFI_BSD
 584         struct ieee80211req_sta_stats stats;
 585
 586         memset(data, 0, sizeof(*data));
 587
 588         /*
 589          * Fetch statistics for station from the system.
 590          */
 591         memset(&stats, 0, sizeof(stats));
 592         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 593         if (set80211priv(drv,
 594 #ifdef MADWIFI_NG
 595                          IEEE80211_IOCTL_STA_STATS,
 596 #else /* MADWIFI_NG */
 597                          IEEE80211_IOCTL_GETSTASTATS,
 598 #endif /* MADWIFI_NG */
 599                          &stats, sizeof(stats))) {
 600                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 601                            MACSTR ")", __func__, MAC2STR(addr));
 602                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 603                         memcpy(data, &drv->acct_data, sizeof(*data));
 604                         return 0;
 605                 }
 606
 607                 printf("Failed to get station stats information element.\n");
 608                 return -1;
 609         }
 610
 611         data->rx_packets = stats.is_stats.ns_rx_data;
 612         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 613         data->tx_packets = stats.is_stats.ns_tx_data;
 614         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 615         return 0;
 616
 617 #else /* MADWIFI_BSD */
 618
 619         char buf[1024], line[128], *pos;
 620         FILE *f;
 621         unsigned long val;
 622
 623         memset(data, 0, sizeof(*data));
 624         snprintf(buf, sizeof(buf), "/proc/net/madwifi/%s/" MACSTR,
 625                  drv->iface, MAC2STR(addr));
 626
 627         f = fopen(buf, "r");
 628         if (!f) {
 629                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) != 0)
 630                         return -1;
 631                 memcpy(data, &drv->acct_data, sizeof(*data));
 632                 return 0;
 633         }
 634         /* Need to read proc file with in one piece, so use large enough
 635          * buffer. */
 636         setbuffer(f, buf, sizeof(buf));
 637
 638         while (fgets(line, sizeof(line), f)) {
 639                 pos = strchr(line, '=');
 640                 if (!pos)
 641                         continue;
 642                 *pos++ = '\0';
 643                 val = strtoul(pos, NULL, 10);
 644                 if (strcmp(line, "rx_packets") == 0)
 645                         data->rx_packets = val;
 646                 else if (strcmp(line, "tx_packets") == 0)
 647                         data->tx_packets = val;
 648                 else if (strcmp(line, "rx_bytes") == 0)
 649                         data->rx_bytes = val;
 650                 else if (strcmp(line, "tx_bytes") == 0)
 651                         data->tx_bytes = val;
 652         }
 653
 654         fclose(f);
 655
 656         return 0;
 657 #endif /* MADWIFI_BSD */
 658 }
 659
 660
 661 static int
 662 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 663 {
 664 #if defined(MADWIFI_BSD) && defined(IEEE80211_MLME_CLEAR_STATS)
 665         struct madwifi_driver_data *drv = priv;
 666         struct ieee80211req_mlme mlme;
 667         int ret;
 668
 669         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 670
 671         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 672         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 673         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 674                            sizeof(mlme));
 675         if (ret < 0) {
 676                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 677                            MACSTR ")", __func__, MAC2STR(addr));
 678         }
 679
 680         return ret;
 681 #else /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 682         return 0; /* FIX */
 683 #endif /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 684 }
 685
 686
 687 static int
 688 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
 689 {
 690         /*
 691          * Do nothing; we setup parameters at startup that define the
 692          * contents of the beacon information element.
 693          */
 694         return 0;
 695 }
 696
 697 static int
 698 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 699                    int reason_code)
 700 {
 701         struct madwifi_driver_data *drv = priv;
 702         struct ieee80211req_mlme mlme;
 703         int ret;
 704
 705         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 706                    __func__, ether_sprintf(addr), reason_code);
 707
 708         mlme.im_op = IEEE80211_MLME_DEAUTH;
 709         mlme.im_reason = reason_code;
 710         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 711         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 712         if (ret < 0) {
 713                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 714                            " reason %d)",
 715                            __func__, MAC2STR(addr), reason_code);
 716         }
 717
 718         return ret;
 719 }
 720
 721 static int
 722 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 723                      int reason_code)
 724 {
 725         struct madwifi_driver_data *drv = priv;
 726         struct ieee80211req_mlme mlme;
 727         int ret;
 728
 729         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 730                    __func__, ether_sprintf(addr), reason_code);
 731
 732         mlme.im_op = IEEE80211_MLME_DISASSOC;
 733         mlme.im_reason = reason_code;
 734         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 735         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 736         if (ret < 0) {
 737                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 738                            MACSTR " reason %d)",
 739                            __func__, MAC2STR(addr), reason_code);
 740         }
 741
 742         return ret;
 743 }
 744
 745 #ifdef CONFIG_WPS
 746 #ifdef IEEE80211_IOCTL_FILTERFRAME
 747 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 748                                 size_t len)
 749 {
 750         struct madwifi_driver_data *drv = ctx;
 751         const struct ieee80211_mgmt *mgmt;
 752         const u8 *end, *ie;
 753         u16 fc;
 754         size_t ie_len;
 755
 756         /* Send Probe Request information to WPS processing */
 757
 758         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 759                 return;
 760         mgmt = (const struct ieee80211_mgmt *) buf;
 761
 762         fc = le_to_host16(mgmt->frame_control);
 763         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 764             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 765                 return;
 766
 767         end = buf + len;
 768         ie = mgmt->u.probe_req.variable;
 769         ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 770
 771         hostapd_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
 772 }
 773 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 774 #endif /* CONFIG_WPS */
 775
 776 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 777 {
 778         int ret = 0;
 779 #ifdef CONFIG_WPS
 780 #ifdef IEEE80211_IOCTL_FILTERFRAME
 781         struct ieee80211req_set_filter filt;
 782
 783         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 784         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 785
 786         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 787                            sizeof(struct ieee80211req_set_filter));
 788         if (ret)
 789                 return ret;
 790
 791         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 792                                        madwifi_raw_receive, drv, 1);
 793         if (drv->sock_raw == NULL)
 794                 return -1;
 795 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 796 #endif /* CONFIG_WPS */
 797         return ret;
 798 }
 799
 800 #ifdef CONFIG_WPS
 801 static int
 802 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 803 {
 804         struct madwifi_driver_data *drv = priv;
 805         u8 buf[256];
 806         struct ieee80211req_getset_appiebuf *beac_ie;
 807
 808         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 809                    (unsigned long) len);
 810
 811         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 812         beac_ie->app_frmtype = frametype;
 813         beac_ie->app_buflen = len;
 814         memcpy(&(beac_ie->app_buf[0]), ie, len);
 815
 816         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 817                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 818 }
 819
 820 static int
 821 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
 822                           size_t len)
 823 {
 824         return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
 825 }
 826
 827 static int
 828 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
 829                               size_t len)
 830 {
 831         return madwifi_set_wps_ie(priv, ie, len,
 832                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 833 }
 834 #else /* CONFIG_WPS */
 835 #define madwifi_set_wps_beacon_ie NULL
 836 #define madwifi_set_wps_probe_resp_ie NULL
 837 #endif /* CONFIG_WPS */
 838
 839 static int
 840 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 841 {
 842         struct hostapd_data *hapd = drv->hapd;
 843         struct ieee80211req_wpaie ie;
 844         int ielen = 0, res;
 845         u8 *iebuf = NULL;
 846
 847         /*
 848          * Fetch negotiated WPA/RSN parameters from the system.
 849          */
 850         memset(&ie, 0, sizeof(ie));
 851         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 852         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 853                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE",
 854                            __func__);
 855                 goto no_ie;
 856         }
 857         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 858                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 859         iebuf = ie.wpa_ie;
 860         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 861          * Assume the IE was not included if the IE type is unknown. */
 862         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 863                 iebuf[1] = 0;
 864 #ifdef MADWIFI_NG
 865         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 866                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 867         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 868                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 869                  * set. This is needed for WPA2. */
 870                 iebuf = ie.rsn_ie;
 871                 if (iebuf[0] != WLAN_EID_RSN)
 872                         iebuf[1] = 0;
 873         }
 874 #endif /* MADWIFI_NG */
 875
 876         ielen = iebuf[1];
 877         if (ielen == 0)
 878                 iebuf = NULL;
 879         else
 880                 ielen += 2;
 881
 882 no_ie:
 883         res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
 884
 885         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 886                 /* Cached accounting data is not valid anymore. */
 887                 memset(drv->acct_mac, 0, ETH_ALEN);
 888                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 889         }
 890
 891         return res;
 892 }
 893
 894 static void
 895 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 896                                        char *custom)
 897 {
 898         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 899
 900         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 901                 char *pos;
 902                 u8 addr[ETH_ALEN];
 903                 pos = strstr(custom, "addr=");
 904                 if (pos == NULL) {
 905                         wpa_printf(MSG_DEBUG,
 906                                    "MLME-MICHAELMICFAILURE.indication "
 907                                    "without sender address ignored");
 908                         return;
 909                 }
 910                 pos += 5;
 911                 if (hwaddr_aton(pos, addr) == 0) {
 912                         hostapd_michael_mic_failure(drv->hapd, addr);
 913                 } else {
 914                         wpa_printf(MSG_DEBUG,
 915                                    "MLME-MICHAELMICFAILURE.indication "
 916                                    "with invalid MAC address");
 917                 }
 918         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 919                 char *key, *value;
 920                 u32 val;
 921                 key = custom;
 922                 while ((key = strchr(key, '\n')) != NULL) {
 923                         key++;
 924                         value = strchr(key, '=');
 925                         if (value == NULL)
 926                                 continue;
 927                         *value++ = '\0';
 928                         val = strtoul(value, NULL, 10);
 929                         if (strcmp(key, "mac") == 0)
 930                                 hwaddr_aton(value, drv->acct_mac);
 931                         else if (strcmp(key, "rx_packets") == 0)
 932                                 drv->acct_data.rx_packets = val;
 933                         else if (strcmp(key, "tx_packets") == 0)
 934                                 drv->acct_data.tx_packets = val;
 935                         else if (strcmp(key, "rx_bytes") == 0)
 936                                 drv->acct_data.rx_bytes = val;
 937                         else if (strcmp(key, "tx_bytes") == 0)
 938                                 drv->acct_data.tx_bytes = val;
 939                         key = value;
 940                 }
 941         }
 942 }
 943
 944 static void
 945 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 946                                             char *data, int len)
 947 {
 948         struct iw_event iwe_buf, *iwe = &iwe_buf;
 949         char *pos, *end, *custom, *buf;
 950
 951         pos = data;
 952         end = data + len;
 953
 954         while (pos + IW_EV_LCP_LEN <= end) {
 955                 /* Event data may be unaligned, so make a local, aligned copy
 956                  * before processing. */
 957                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 958                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 959                            iwe->cmd, iwe->len);
 960                 if (iwe->len <= IW_EV_LCP_LEN)
 961                         return;
 962
 963                 custom = pos + IW_EV_POINT_LEN;
 964                 if (drv->we_version > 18 &&
 965                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 966                      iwe->cmd == IWEVCUSTOM)) {
 967                         /* WE-19 removed the pointer from struct iw_point */
 968                         char *dpos = (char *) &iwe_buf.u.data.length;
 969                         int dlen = dpos - (char *) &iwe_buf;
 970                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 971                                sizeof(struct iw_event) - dlen);
 972                 } else {
 973                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 974                         custom += IW_EV_POINT_OFF;
 975                 }
 976
 977                 switch (iwe->cmd) {
 978                 case IWEVEXPIRED:
 979                         hostapd_notif_disassoc(drv->hapd,
 980                                                (u8 *) iwe->u.addr.sa_data);
 981                         break;
 982                 case IWEVREGISTERED:
 983                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 984                         break;
 985                 case IWEVCUSTOM:
 986                         if (custom + iwe->u.data.length > end)
 987                                 return;
 988                         buf = malloc(iwe->u.data.length + 1);
 989                         if (buf == NULL)
 990                                 return;         /* XXX */
 991                         memcpy(buf, custom, iwe->u.data.length);
 992                         buf[iwe->u.data.length] = '\0';
 993                         madwifi_wireless_event_wireless_custom(drv, buf);
 994                         free(buf);
 995                         break;
 996                 }
 997
 998                 pos += iwe->len;
 999         }
1000 }
1001
1002
1003 static void
1004 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
1005                                                struct nlmsghdr *h, int len)
1006 {
1007         struct ifinfomsg *ifi;
1008         int attrlen, nlmsg_len, rta_len;
1009         struct rtattr * attr;
1010
1011         if (len < (int) sizeof(*ifi))
1012                 return;
1013
1014         ifi = NLMSG_DATA(h);
1015
1016         if (ifi->ifi_index != drv->ifindex)
1017                 return;
1018
1019         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
1020
1021         attrlen = h->nlmsg_len - nlmsg_len;
1022         if (attrlen < 0)
1023                 return;
1024
1025         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
1026
1027         rta_len = RTA_ALIGN(sizeof(struct rtattr));
1028         while (RTA_OK(attr, attrlen)) {
1029                 if (attr->rta_type == IFLA_WIRELESS) {
1030                         madwifi_wireless_event_wireless(
1031                                 drv, ((char *) attr) + rta_len,
1032                                 attr->rta_len - rta_len);
1033                 }
1034                 attr = RTA_NEXT(attr, attrlen);
1035         }
1036 }
1037
1038
1039 static void
1040 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
1041 {
1042         char buf[256];
1043         int left;
1044         struct sockaddr_nl from;
1045         socklen_t fromlen;
1046         struct nlmsghdr *h;
1047         struct madwifi_driver_data *drv = eloop_ctx;
1048
1049         fromlen = sizeof(from);
1050         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
1051                         (struct sockaddr *) &from, &fromlen);
1052         if (left < 0) {
1053                 if (errno != EINTR && errno != EAGAIN)
1054                         perror("recvfrom(netlink)");
1055                 return;
1056         }
1057
1058         h = (struct nlmsghdr *) buf;
1059         while (left >= (int) sizeof(*h)) {
1060                 int len, plen;
1061
1062                 len = h->nlmsg_len;
1063                 plen = len - sizeof(*h);
1064                 if (len > left || plen < 0) {
1065                         printf("Malformed netlink message: "
1066                                "len=%d left=%d plen=%d\n",
1067                                len, left, plen);
1068                         break;
1069                 }
1070
1071                 switch (h->nlmsg_type) {
1072                 case RTM_NEWLINK:
1073                         madwifi_wireless_event_rtm_newlink(drv, h, plen);
1074                         break;
1075                 }
1076
1077                 len = NLMSG_ALIGN(len);
1078                 left -= len;
1079                 h = (struct nlmsghdr *) ((char *) h + len);
1080         }
1081
1082         if (left > 0) {
1083                 printf("%d extra bytes in the end of netlink message\n", left);
1084         }
1085 }
1086
1087
1088 static int
1089 madwifi_get_we_version(struct madwifi_driver_data *drv)
1090 {
1091         struct iw_range *range;
1092         struct iwreq iwr;
1093         int minlen;
1094         size_t buflen;
1095
1096         drv->we_version = 0;
1097
1098         /*
1099          * Use larger buffer than struct iw_range in order to allow the
1100          * structure to grow in the future.
1101          */
1102         buflen = sizeof(struct iw_range) + 500;
1103         range = os_zalloc(buflen);
1104         if (range == NULL)
1105                 return -1;
1106
1107         memset(&iwr, 0, sizeof(iwr));
1108         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1109         iwr.u.data.pointer = (caddr_t) range;
1110         iwr.u.data.length = buflen;
1111
1112         minlen = ((char *) &range->enc_capa) - (char *) range +
1113                 sizeof(range->enc_capa);
1114
1115         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1116                 perror("ioctl[SIOCGIWRANGE]");
1117                 free(range);
1118                 return -1;
1119         } else if (iwr.u.data.length >= minlen &&
1120                    range->we_version_compiled >= 18) {
1121                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1122                            "WE(source)=%d enc_capa=0x%x",
1123                            range->we_version_compiled,
1124                            range->we_version_source,
1125                            range->enc_capa);
1126                 drv->we_version = range->we_version_compiled;
1127         }
1128
1129         free(range);
1130         return 0;
1131 }
1132
1133
1134 static int
1135 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1136 {
1137         int s;
1138         struct sockaddr_nl local;
1139
1140         madwifi_get_we_version(drv);
1141
1142         drv->wext_sock = -1;
1143
1144         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1145         if (s < 0) {
1146                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1147                 return -1;
1148         }
1149
1150         memset(&local, 0, sizeof(local));
1151         local.nl_family = AF_NETLINK;
1152         local.nl_groups = RTMGRP_LINK;
1153         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1154                 perror("bind(netlink)");
1155                 close(s);
1156                 return -1;
1157         }
1158
1159         eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1160         drv->wext_sock = s;
1161
1162         return 0;
1163 }
1164
1165
1166 static void
1167 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1168 {
1169         if (drv->wext_sock < 0)
1170                 return;
1171         eloop_unregister_read_sock(drv->wext_sock);
1172         close(drv->wext_sock);
1173 }
1174
1175
1176 static int
1177 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1178                    int encrypt, const u8 *own_addr)
1179 {
1180         struct madwifi_driver_data *drv = priv;
1181         unsigned char buf[3000];
1182         unsigned char *bp = buf;
1183         struct l2_ethhdr *eth;
1184         size_t len;
1185         int status;
1186
1187         /*
1188          * Prepend the Ethernet header.  If the caller left us
1189          * space at the front we could just insert it but since
1190          * we don't know we copy to a local buffer.  Given the frequency
1191          * and size of frames this probably doesn't matter.
1192          */
1193         len = data_len + sizeof(struct l2_ethhdr);
1194         if (len > sizeof(buf)) {
1195                 bp = malloc(len);
1196                 if (bp == NULL) {
1197                         printf("EAPOL frame discarded, cannot malloc temp "
1198                                "buffer of size %lu!\n", (unsigned long) len);
1199                         return -1;
1200                 }
1201         }
1202         eth = (struct l2_ethhdr *) bp;
1203         memcpy(eth->h_dest, addr, ETH_ALEN);
1204         memcpy(eth->h_source, own_addr, ETH_ALEN);
1205         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1206         memcpy(eth+1, data, data_len);
1207
1208         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1209
1210         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1211
1212         if (bp != buf)
1213                 free(bp);
1214         return status;
1215 }
1216
1217 static void
1218 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1219 {
1220         struct madwifi_driver_data *drv = ctx;
1221         hostapd_eapol_receive(drv->hapd, src_addr,
1222                               buf + sizeof(struct l2_ethhdr),
1223                               len - sizeof(struct l2_ethhdr));
1224 }
1225
1226 static void *
1227 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1228 {
1229         struct madwifi_driver_data *drv;
1230         struct ifreq ifr;
1231         struct iwreq iwr;
1232
1233         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1234         if (drv == NULL) {
1235                 printf("Could not allocate memory for madwifi driver data\n");
1236                 return NULL;
1237         }
1238
1239         drv->hapd = hapd;
1240         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1241         if (drv->ioctl_sock < 0) {
1242                 perror("socket[PF_INET,SOCK_DGRAM]");
1243                 goto bad;
1244         }
1245         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1246
1247         memset(&ifr, 0, sizeof(ifr));
1248         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1249         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1250                 perror("ioctl(SIOCGIFINDEX)");
1251                 goto bad;
1252         }
1253         drv->ifindex = ifr.ifr_ifindex;
1254
1255         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1256                                         handle_read, drv, 1);
1257         if (drv->sock_xmit == NULL)
1258                 goto bad;
1259         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1260                 goto bad;
1261         if (params->bridge[0]) {
1262                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1263                            params->bridge[0]);
1264                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1265                                                 ETH_P_EAPOL, handle_read, drv,
1266                                                 1);
1267                 if (drv->sock_recv == NULL)
1268                         goto bad;
1269         } else
1270                 drv->sock_recv = drv->sock_xmit;
1271
1272         memset(&iwr, 0, sizeof(iwr));
1273         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1274
1275         iwr.u.mode = IW_MODE_MASTER;
1276
1277         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1278                 perror("ioctl[SIOCSIWMODE]");
1279                 printf("Could not set interface to master mode!\n");
1280                 goto bad;
1281         }
1282
1283         madwifi_set_iface_flags(drv, 0);        /* mark down during setup */
1284         madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1285
1286         madwifi_receive_probe_req(drv);
1287
1288         if (madwifi_wireless_event_init(drv))
1289                 goto bad;
1290
1291         return drv;
1292 bad:
1293         if (drv->sock_xmit != NULL)
1294                 l2_packet_deinit(drv->sock_xmit);
1295         if (drv->ioctl_sock >= 0)
1296                 close(drv->ioctl_sock);
1297         if (drv != NULL)
1298                 free(drv);
1299         return NULL;
1300 }
1301
1302
1303 static void
1304 madwifi_deinit(void *priv)
1305 {
1306         struct madwifi_driver_data *drv = priv;
1307
1308         madwifi_wireless_event_deinit(drv);
1309         (void) madwifi_set_iface_flags(drv, 0);
1310         if (drv->ioctl_sock >= 0)
1311                 close(drv->ioctl_sock);
1312         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1313                 l2_packet_deinit(drv->sock_recv);
1314         if (drv->sock_xmit != NULL)
1315                 l2_packet_deinit(drv->sock_xmit);
1316         if (drv->sock_raw)
1317                 l2_packet_deinit(drv->sock_raw);
1318         free(drv);
1319 }
1320
1321 static int
1322 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1323 {
1324         struct madwifi_driver_data *drv = priv;
1325         struct iwreq iwr;
1326
1327         memset(&iwr, 0, sizeof(iwr));
1328         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1329         iwr.u.essid.flags = 1; /* SSID active */
1330         iwr.u.essid.pointer = (caddr_t) buf;
1331         iwr.u.essid.length = len + 1;
1332
1333         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1334                 perror("ioctl[SIOCSIWESSID]");
1335                 printf("len=%d\n", len);
1336                 return -1;
1337         }
1338         return 0;
1339 }
1340
1341 static int
1342 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1343 {
1344         struct madwifi_driver_data *drv = priv;
1345         struct iwreq iwr;
1346         int ret = 0;
1347
1348         memset(&iwr, 0, sizeof(iwr));
1349         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1350         iwr.u.essid.pointer = (caddr_t) buf;
1351         iwr.u.essid.length = len;
1352
1353         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1354                 perror("ioctl[SIOCGIWESSID]");
1355                 ret = -1;
1356         } else
1357                 ret = iwr.u.essid.length;
1358
1359         return ret;
1360 }
1361
1362 static int
1363 madwifi_set_countermeasures(void *priv, int enabled)
1364 {
1365         struct madwifi_driver_data *drv = priv;
1366         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1367         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1368 }
1369
1370 static int
1371 madwifi_commit(void *priv)
1372 {
1373         return madwifi_set_iface_flags(priv, 1);
1374 }
1375
1376 #else /* HOSTAPD */
1377
1378 struct wpa_driver_madwifi_data {
1379         void *wext; /* private data for driver_wext */
1380         void *ctx;
1381         char ifname[IFNAMSIZ + 1];
1382         int sock;
1383 };
1384
1385 static int wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg);
1386 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1387                                                size_t ies_len);
1388
1389
1390 static int
1391 set80211priv(struct wpa_driver_madwifi_data *drv, int op, void *data, int len,
1392              int show_err)
1393 {
1394         struct iwreq iwr;
1395
1396         os_memset(&iwr, 0, sizeof(iwr));
1397         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1398         if (len < IFNAMSIZ &&
1399             op != IEEE80211_IOCTL_SET_APPIEBUF) {
1400                 /*
1401                  * Argument data fits inline; put it there.
1402                  */
1403                 os_memcpy(iwr.u.name, data, len);
1404         } else {
1405                 /*
1406                  * Argument data too big for inline transfer; setup a
1407                  * parameter block instead; the kernel will transfer
1408                  * the data for the driver.
1409                  */
1410                 iwr.u.data.pointer = data;
1411                 iwr.u.data.length = len;
1412         }
1413
1414         if (ioctl(drv->sock, op, &iwr) < 0) {
1415                 if (show_err) {
1416 #ifdef MADWIFI_NG
1417                         int first = IEEE80211_IOCTL_SETPARAM;
1418                         int last = IEEE80211_IOCTL_KICKMAC;
1419                         static const char *opnames[] = {
1420                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1421                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1422                                 "ioctl[IEEE80211_IOCTL_SETMODE]",
1423                                 "ioctl[IEEE80211_IOCTL_GETMODE]",
1424                                 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
1425                                 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
1426                                 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
1427                                 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
1428                                 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
1429                                 NULL,
1430                                 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
1431                                 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
1432                                 NULL,
1433                                 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
1434                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1435                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1436                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1437                                 NULL,
1438                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1439                                 NULL,
1440                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1441                                 NULL,
1442                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1443                                 NULL,
1444                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1445                                 NULL,
1446                                 "ioctl[IEEE80211_IOCTL_WDSMAC]",
1447                                 NULL,
1448                                 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
1449                                 NULL,
1450                                 "ioctl[IEEE80211_IOCTL_KICKMAC]",
1451                         };
1452 #else /* MADWIFI_NG */
1453                         int first = IEEE80211_IOCTL_SETPARAM;
1454                         int last = IEEE80211_IOCTL_CHANLIST;
1455                         static const char *opnames[] = {
1456                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1457                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1458                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1459                                 "ioctl[IEEE80211_IOCTL_GETKEY]",
1460                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1461                                 NULL,
1462                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1463                                 NULL,
1464                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1465                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1466                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1467                                 NULL,
1468                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1469                                 NULL,
1470                                 "ioctl[IEEE80211_IOCTL_CHANLIST]",
1471                         };
1472 #endif /* MADWIFI_NG */
1473                         int idx = op - first;
1474                         if (first <= op && op <= last &&
1475                             idx < (int) (sizeof(opnames) / sizeof(opnames[0]))
1476                             && opnames[idx])
1477                                 perror(opnames[idx]);
1478                         else
1479                                 perror("ioctl[unknown???]");
1480                 }
1481                 return -1;
1482         }
1483         return 0;
1484 }
1485
1486 static int
1487 set80211param(struct wpa_driver_madwifi_data *drv, int op, int arg,
1488               int show_err)
1489 {
1490         struct iwreq iwr;
1491
1492         os_memset(&iwr, 0, sizeof(iwr));
1493         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1494         iwr.u.mode = op;
1495         os_memcpy(iwr.u.name+sizeof(u32), &arg, sizeof(arg));
1496
1497         if (ioctl(drv->sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
1498                 if (show_err)
1499                         perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
1500                 return -1;
1501         }
1502         return 0;
1503 }
1504
1505 static int
1506 wpa_driver_madwifi_set_wpa_ie(struct wpa_driver_madwifi_data *drv,
1507                               const u8 *wpa_ie, size_t wpa_ie_len)
1508 {
1509         struct iwreq iwr;
1510
1511         os_memset(&iwr, 0, sizeof(iwr));
1512         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1513         /* NB: SETOPTIE is not fixed-size so must not be inlined */
1514         iwr.u.data.pointer = (void *) wpa_ie;
1515         iwr.u.data.length = wpa_ie_len;
1516
1517         if (ioctl(drv->sock, IEEE80211_IOCTL_SETOPTIE, &iwr) < 0) {
1518                 perror("ioctl[IEEE80211_IOCTL_SETOPTIE]");
1519                 return -1;
1520         }
1521         return 0;
1522 }
1523
1524 static int
1525 wpa_driver_madwifi_del_key(struct wpa_driver_madwifi_data *drv, int key_idx,
1526                            const u8 *addr)
1527 {
1528         struct ieee80211req_del_key wk;
1529
1530         wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __FUNCTION__, key_idx);
1531         os_memset(&wk, 0, sizeof(wk));
1532         wk.idk_keyix = key_idx;
1533         if (addr != NULL)
1534                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
1535
1536         return set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk), 1);
1537 }
1538
1539 static int
1540 wpa_driver_madwifi_set_key(const char *ifname, void *priv, wpa_alg alg,
1541                            const u8 *addr, int key_idx, int set_tx,
1542                            const u8 *seq, size_t seq_len,
1543                            const u8 *key, size_t key_len)
1544 {
1545         struct wpa_driver_madwifi_data *drv = priv;
1546         struct ieee80211req_key wk;
1547         char *alg_name;
1548         u_int8_t cipher;
1549
1550         if (alg == WPA_ALG_NONE)
1551                 return wpa_driver_madwifi_del_key(drv, key_idx, addr);
1552
1553         switch (alg) {
1554         case WPA_ALG_WEP:
1555                 if (addr == NULL || os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1556                                               ETH_ALEN) == 0) {
1557                         /*
1558                          * madwifi did not seem to like static WEP key
1559                          * configuration with IEEE80211_IOCTL_SETKEY, so use
1560                          * Linux wireless extensions ioctl for this.
1561                          */
1562                         return wpa_driver_wext_set_key(ifname, drv->wext, alg,
1563                                                        addr, key_idx, set_tx,
1564                                                        seq, seq_len,
1565                                                        key, key_len);
1566                 }
1567                 alg_name = "WEP";
1568                 cipher = IEEE80211_CIPHER_WEP;
1569                 break;
1570         case WPA_ALG_TKIP:
1571                 alg_name = "TKIP";
1572                 cipher = IEEE80211_CIPHER_TKIP;
1573                 break;
1574         case WPA_ALG_CCMP:
1575                 alg_name = "CCMP";
1576                 cipher = IEEE80211_CIPHER_AES_CCM;
1577                 break;
1578         default:
1579                 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1580                         __FUNCTION__, alg);
1581                 return -1;
1582         }
1583
1584         wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
1585                    "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
1586                    (unsigned long) seq_len, (unsigned long) key_len);
1587
1588         if (seq_len > sizeof(u_int64_t)) {
1589                 wpa_printf(MSG_DEBUG, "%s: seq_len %lu too big",
1590                            __FUNCTION__, (unsigned long) seq_len);
1591                 return -2;
1592         }
1593         if (key_len > sizeof(wk.ik_keydata)) {
1594                 wpa_printf(MSG_DEBUG, "%s: key length %lu too big",
1595                            __FUNCTION__, (unsigned long) key_len);
1596                 return -3;
1597         }
1598
1599         os_memset(&wk, 0, sizeof(wk));
1600         wk.ik_type = cipher;
1601         wk.ik_flags = IEEE80211_KEY_RECV;
1602         if (addr == NULL ||
1603             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1604                 wk.ik_flags |= IEEE80211_KEY_GROUP;
1605         if (set_tx) {
1606                 wk.ik_flags |= IEEE80211_KEY_XMIT | IEEE80211_KEY_DEFAULT;
1607                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1608         } else
1609                 os_memset(wk.ik_macaddr, 0, IEEE80211_ADDR_LEN);
1610         wk.ik_keyix = key_idx;
1611         wk.ik_keylen = key_len;
1612 #ifdef WORDS_BIGENDIAN
1613 #define WPA_KEY_RSC_LEN 8
1614         {
1615                 size_t i;
1616                 u8 tmp[WPA_KEY_RSC_LEN];
1617                 os_memset(tmp, 0, sizeof(tmp));
1618                 for (i = 0; i < seq_len; i++)
1619                         tmp[WPA_KEY_RSC_LEN - i - 1] = seq[i];
1620                 os_memcpy(&wk.ik_keyrsc, tmp, WPA_KEY_RSC_LEN);
1621         }
1622 #else /* WORDS_BIGENDIAN */
1623         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1624 #endif /* WORDS_BIGENDIAN */
1625         os_memcpy(wk.ik_keydata, key, key_len);
1626
1627         return set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk), 1);
1628 }
1629
1630 static int
1631 wpa_driver_madwifi_set_countermeasures(void *priv, int enabled)
1632 {
1633         struct wpa_driver_madwifi_data *drv = priv;
1634         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1635         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled, 1);
1636 }
1637
1638 static int
1639 wpa_driver_madwifi_deauthenticate(void *priv, const u8 *addr, int reason_code)
1640 {
1641         struct wpa_driver_madwifi_data *drv = priv;
1642         struct ieee80211req_mlme mlme;
1643
1644         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1645         mlme.im_op = IEEE80211_MLME_DEAUTH;
1646         mlme.im_reason = reason_code;
1647         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1648         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1649 }
1650
1651 static int
1652 wpa_driver_madwifi_disassociate(void *priv, const u8 *addr, int reason_code)
1653 {
1654         struct wpa_driver_madwifi_data *drv = priv;
1655         struct ieee80211req_mlme mlme;
1656
1657         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1658         mlme.im_op = IEEE80211_MLME_DISASSOC;
1659         mlme.im_reason = reason_code;
1660         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1661         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1662 }
1663
1664 static int
1665 wpa_driver_madwifi_associate(void *priv,
1666                              struct wpa_driver_associate_params *params)
1667 {
1668         struct wpa_driver_madwifi_data *drv = priv;
1669         struct ieee80211req_mlme mlme;
1670         int ret = 0, privacy = 1;
1671
1672         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1673
1674         if (set80211param(drv, IEEE80211_PARAM_DROPUNENCRYPTED,
1675                           params->drop_unencrypted, 1) < 0)
1676                 ret = -1;
1677         if (wpa_driver_madwifi_set_auth_alg(drv, params->auth_alg) < 0)
1678                 ret = -1;
1679
1680         /*
1681          * NB: Don't need to set the freq or cipher-related state as
1682          *     this is implied by the bssid which is used to locate
1683          *     the scanned node state which holds it.  The ssid is
1684          *     needed to disambiguate an AP that broadcasts multiple
1685          *     ssid's but uses the same bssid.
1686          */
1687         /* XXX error handling is wrong but unclear what to do... */
1688         if (wpa_driver_madwifi_set_wpa_ie(drv, params->wpa_ie,
1689                                           params->wpa_ie_len) < 0)
1690                 ret = -1;
1691
1692         if (params->pairwise_suite == CIPHER_NONE &&
1693             params->group_suite == CIPHER_NONE &&
1694             params->key_mgmt_suite == KEY_MGMT_NONE &&
1695             params->wpa_ie_len == 0)
1696                 privacy = 0;
1697
1698         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, privacy, 1) < 0)
1699                 ret = -1;
1700
1701         if (params->wpa_ie_len &&
1702             set80211param(drv, IEEE80211_PARAM_WPA,
1703                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1, 1) < 0)
1704                 ret = -1;
1705
1706         if (params->bssid == NULL) {
1707                 /* ap_scan=2 mode - driver takes care of AP selection and
1708                  * roaming */
1709                 /* FIX: this does not seem to work; would probably need to
1710                  * change something in the driver */
1711                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0)
1712                         ret = -1;
1713
1714                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1715                                              params->ssid_len) < 0)
1716                         ret = -1;
1717         } else {
1718                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0)
1719                         ret = -1;
1720                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1721                                              params->ssid_len) < 0)
1722                         ret = -1;
1723                 os_memset(&mlme, 0, sizeof(mlme));
1724                 mlme.im_op = IEEE80211_MLME_ASSOC;
1725                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1726                 if (set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
1727                                  sizeof(mlme), 1) < 0) {
1728                         wpa_printf(MSG_DEBUG, "%s: SETMLME[ASSOC] failed",
1729                                    __func__);
1730                         ret = -1;
1731                 }
1732         }
1733
1734         return ret;
1735 }
1736
1737 static int
1738 wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg)
1739 {
1740         struct wpa_driver_madwifi_data *drv = priv;
1741         int authmode;
1742
1743         if ((auth_alg & AUTH_ALG_OPEN_SYSTEM) &&
1744             (auth_alg & AUTH_ALG_SHARED_KEY))
1745                 authmode = IEEE80211_AUTH_AUTO;
1746         else if (auth_alg & AUTH_ALG_SHARED_KEY)
1747                 authmode = IEEE80211_AUTH_SHARED;
1748         else
1749                 authmode = IEEE80211_AUTH_OPEN;
1750
1751         return set80211param(drv, IEEE80211_PARAM_AUTHMODE, authmode, 1);
1752 }
1753
1754 static int
1755 wpa_driver_madwifi_scan(void *priv, struct wpa_driver_scan_params *params)
1756 {
1757         struct wpa_driver_madwifi_data *drv = priv;
1758         struct iwreq iwr;
1759         int ret = 0;
1760         const u8 *ssid = params->ssids[0].ssid;
1761         size_t ssid_len = params->ssids[0].ssid_len;
1762
1763         wpa_driver_madwifi_set_probe_req_ie(drv, params->extra_ies,
1764                                             params->extra_ies_len);
1765
1766         os_memset(&iwr, 0, sizeof(iwr));
1767         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1768
1769         /* set desired ssid before scan */
1770         /* FIX: scan should not break the current association, so using
1771          * set_ssid may not be the best way of doing this.. */
1772         if (wpa_driver_wext_set_ssid(drv->wext, ssid, ssid_len) < 0)
1773                 ret = -1;
1774
1775         if (ioctl(drv->sock, SIOCSIWSCAN, &iwr) < 0) {
1776                 perror("ioctl[SIOCSIWSCAN]");
1777                 ret = -1;
1778         }
1779
1780         /*
1781          * madwifi delivers a scan complete event so no need to poll, but
1782          * register a backup timeout anyway to make sure that we recover even
1783          * if the driver does not send this event for any reason. This timeout
1784          * will only be used if the event is not delivered (event handler will
1785          * cancel the timeout).
1786          */
1787         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv->wext,
1788                              drv->ctx);
1789         eloop_register_timeout(30, 0, wpa_driver_wext_scan_timeout, drv->wext,
1790                                drv->ctx);
1791
1792         return ret;
1793 }
1794
1795 static int wpa_driver_madwifi_get_bssid(void *priv, u8 *bssid)
1796 {
1797         struct wpa_driver_madwifi_data *drv = priv;
1798         return wpa_driver_wext_get_bssid(drv->wext, bssid);
1799 }
1800
1801
1802 static int wpa_driver_madwifi_get_ssid(void *priv, u8 *ssid)
1803 {
1804         struct wpa_driver_madwifi_data *drv = priv;
1805         return wpa_driver_wext_get_ssid(drv->wext, ssid);
1806 }
1807
1808
1809 static struct wpa_scan_results *
1810 wpa_driver_madwifi_get_scan_results(void *priv)
1811 {
1812         struct wpa_driver_madwifi_data *drv = priv;
1813         return wpa_driver_wext_get_scan_results(drv->wext);
1814 }
1815
1816
1817 static int wpa_driver_madwifi_set_operstate(void *priv, int state)
1818 {
1819         struct wpa_driver_madwifi_data *drv = priv;
1820         return wpa_driver_wext_set_operstate(drv->wext, state);
1821 }
1822
1823
1824 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1825                                                size_t ies_len)
1826 {
1827         struct ieee80211req_getset_appiebuf *probe_req_ie;
1828         int ret;
1829
1830         probe_req_ie = os_malloc(sizeof(*probe_req_ie) + ies_len);
1831         if (probe_req_ie == NULL)
1832                 return -1;
1833
1834         probe_req_ie->app_frmtype = IEEE80211_APPIE_FRAME_PROBE_REQ;
1835         probe_req_ie->app_buflen = ies_len;
1836         os_memcpy(probe_req_ie->app_buf, ies, ies_len);
1837
1838         ret = set80211priv(priv, IEEE80211_IOCTL_SET_APPIEBUF, probe_req_ie,
1839                            sizeof(struct ieee80211req_getset_appiebuf) +
1840                            ies_len, 1);
1841
1842         os_free(probe_req_ie);
1843
1844         return ret;
1845 }
1846
1847
1848 static void * wpa_driver_madwifi_init(void *ctx, const char *ifname)
1849 {
1850         struct wpa_driver_madwifi_data *drv;
1851
1852         drv = os_zalloc(sizeof(*drv));
1853         if (drv == NULL)
1854                 return NULL;
1855         drv->wext = wpa_driver_wext_init(ctx, ifname);
1856         if (drv->wext == NULL)
1857                 goto fail;
1858
1859         drv->ctx = ctx;
1860         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1861         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1862         if (drv->sock < 0)
1863                 goto fail2;
1864
1865         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0) {
1866                 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1867                            "roaming", __FUNCTION__);
1868                 goto fail3;
1869         }
1870
1871         if (set80211param(drv, IEEE80211_PARAM_WPA, 3, 1) < 0) {
1872                 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support",
1873                            __FUNCTION__);
1874                 goto fail3;
1875         }
1876
1877         return drv;
1878
1879 fail3:
1880         close(drv->sock);
1881 fail2:
1882         wpa_driver_wext_deinit(drv->wext);
1883 fail:
1884         os_free(drv);
1885         return NULL;
1886 }
1887
1888
1889 static void wpa_driver_madwifi_deinit(void *priv)
1890 {
1891         struct wpa_driver_madwifi_data *drv = priv;
1892
1893         if (wpa_driver_madwifi_set_wpa_ie(drv, NULL, 0) < 0) {
1894                 wpa_printf(MSG_DEBUG, "%s: failed to clear WPA IE",
1895                            __FUNCTION__);
1896         }
1897         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0) {
1898                 wpa_printf(MSG_DEBUG, "%s: failed to enable driver-based "
1899                            "roaming", __FUNCTION__);
1900         }
1901         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, 0, 1) < 0) {
1902                 wpa_printf(MSG_DEBUG, "%s: failed to disable forced Privacy "
1903                            "flag", __FUNCTION__);
1904         }
1905         if (set80211param(drv, IEEE80211_PARAM_WPA, 0, 1) < 0) {
1906                 wpa_printf(MSG_DEBUG, "%s: failed to disable WPA",
1907                            __FUNCTION__);
1908         }
1909
1910         wpa_driver_wext_deinit(drv->wext);
1911
1912         close(drv->sock);
1913         os_free(drv);
1914 }
1915
1916 #endif /* HOSTAPD */
1917
1918
1919 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
1920         .name                   = "madwifi",
1921         .desc                   = "MADWIFI 802.11 support (Atheros, etc.)",
1922         .set_key                = wpa_driver_madwifi_set_key,
1923 #ifdef HOSTAPD
1924         .hapd_init              = madwifi_init,
1925         .hapd_deinit            = madwifi_deinit,
1926         .set_ieee8021x          = madwifi_set_ieee8021x,
1927         .set_privacy            = madwifi_set_privacy,
1928         .get_seqnum             = madwifi_get_seqnum,
1929         .flush                  = madwifi_flush,
1930         .set_generic_elem       = madwifi_set_opt_ie,
1931         .sta_set_flags          = madwifi_sta_set_flags,
1932         .read_sta_data          = madwifi_read_sta_driver_data,
1933         .hapd_send_eapol        = madwifi_send_eapol,
1934         .sta_disassoc           = madwifi_sta_disassoc,
1935         .sta_deauth             = madwifi_sta_deauth,
1936         .hapd_set_ssid          = madwifi_set_ssid,
1937         .hapd_get_ssid          = madwifi_get_ssid,
1938         .hapd_set_countermeasures       = madwifi_set_countermeasures,
1939         .sta_clear_stats        = madwifi_sta_clear_stats,
1940         .commit                 = madwifi_commit,
1941         .set_wps_beacon_ie      = madwifi_set_wps_beacon_ie,
1942         .set_wps_probe_resp_ie  = madwifi_set_wps_probe_resp_ie,
1943 #else /* HOSTAPD */
1944         .get_bssid              = wpa_driver_madwifi_get_bssid,
1945         .get_ssid               = wpa_driver_madwifi_get_ssid,
1946         .init                   = wpa_driver_madwifi_init,
1947         .deinit                 = wpa_driver_madwifi_deinit,
1948         .set_countermeasures    = wpa_driver_madwifi_set_countermeasures,
1949         .scan2                  = wpa_driver_madwifi_scan,
1950         .get_scan_results2      = wpa_driver_madwifi_get_scan_results,
1951         .deauthenticate         = wpa_driver_madwifi_deauthenticate,
1952         .disassociate           = wpa_driver_madwifi_disassociate,
1953         .associate              = wpa_driver_madwifi_associate,
1954         .set_operstate          = wpa_driver_madwifi_set_operstate,
1955 #endif /* HOSTAPD */
1956 };