vcs.maemo.org Git - wpasupplicant/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
  17 #include "includes.h"
  18 #include <sys/ioctl.h>
  19
  20 #include "common.h"
  21 #include "driver.h"
  22 #include "driver_wext.h"
  23 #include "eloop.h"
  24 #include "ieee802_11_defs.h"
  25 #include "wireless_copy.h"
  26
  27 /*
  28  * Avoid conflicts with wpa_supplicant definitions by undefining a definition.
  29  */
  30 #undef WME_OUI_TYPE
  31
  32 #include <include/compat.h>
  33 #include <net80211/ieee80211.h>
  34 #ifdef WME_NUM_AC
  35 /* Assume this is built against BSD branch of madwifi driver. */
  36 #define MADWIFI_BSD
  37 #include <net80211/_ieee80211.h>
  38 #endif /* WME_NUM_AC */
  39 #include <net80211/ieee80211_crypto.h>
  40 #include <net80211/ieee80211_ioctl.h>
  41
  42 #ifdef CONFIG_WPS
  43 #ifdef IEEE80211_IOCTL_FILTERFRAME
  44 #include <netpacket/packet.h>
  45
  46 #ifndef ETH_P_80211_RAW
  47 #define ETH_P_80211_RAW 0x0019
  48 #endif
  49 #endif /* IEEE80211_IOCTL_FILTERFRAME */
  50 #endif /* CONFIG_WPS */
  51
  52 /*
  53  * Avoid conflicts with hostapd definitions by undefining couple of defines
  54  * from madwifi header files.
  55  */
  56 #undef RSN_VERSION
  57 #undef WPA_VERSION
  58 #undef WPA_OUI_TYPE
  59 #undef WME_OUI_TYPE
  60
  61
  62 #ifdef IEEE80211_IOCTL_SETWMMPARAMS
  63 /* Assume this is built against madwifi-ng */
  64 #define MADWIFI_NG
  65 #endif /* IEEE80211_IOCTL_SETWMMPARAMS */
  66
  67
  68 #ifdef HOSTAPD
  69
  70 #include "priv_netlink.h"
  71 #include "l2_packet/l2_packet.h"
  72 #include "../../hostapd/hostapd.h"
  73 #include "../../hostapd/config.h"
  74 #include "../../hostapd/wps_hostapd.h"
  75 #include "../../hostapd/sta_flags.h"
  76
  77
  78 struct madwifi_driver_data {
  79         struct hostapd_data *hapd;              /* back pointer */
  80
  81         char    iface[IFNAMSIZ + 1];
  82         int     ifindex;
  83         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
  84         struct l2_packet_data *sock_recv;       /* raw packet recv socket */
  85         int     ioctl_sock;                     /* socket for ioctl() use */
  86         int     wext_sock;                      /* socket for wireless events */
  87         int     we_version;
  88         u8      acct_mac[ETH_ALEN];
  89         struct hostap_sta_driver_data acct_data;
  90
  91         struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
  92 };
  93
  94 static int madwifi_sta_deauth(void *priv, const u8 *addr, int reason_code);
  95
  96 static int
  97 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
  98 {
  99         struct iwreq iwr;
 100         int do_inline = len < IFNAMSIZ;
 101
 102         memset(&iwr, 0, sizeof(iwr));
 103         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 104 #ifdef IEEE80211_IOCTL_FILTERFRAME
 105         /* FILTERFRAME must be NOT inline, regardless of size. */
 106         if (op == IEEE80211_IOCTL_FILTERFRAME)
 107                 do_inline = 0;
 108 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 109         if (op == IEEE80211_IOCTL_SET_APPIEBUF)
 110                 do_inline = 0;
 111         if (do_inline) {
 112                 /*
 113                  * Argument data fits inline; put it there.
 114                  */
 115                 memcpy(iwr.u.name, data, len);
 116         } else {
 117                 /*
 118                  * Argument data too big for inline transfer; setup a
 119                  * parameter block instead; the kernel will transfer
 120                  * the data for the driver.
 121                  */
 122                 iwr.u.data.pointer = data;
 123                 iwr.u.data.length = len;
 124         }
 125
 126         if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
 127 #ifdef MADWIFI_NG
 128                 int first = IEEE80211_IOCTL_SETPARAM;
 129                 static const char *opnames[] = {
 130                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 131                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 132                         "ioctl[IEEE80211_IOCTL_SETMODE]",
 133                         "ioctl[IEEE80211_IOCTL_GETMODE]",
 134                         "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
 135                         "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
 136                         "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
 137                         "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
 138                         "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
 139                         "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
 140                         "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
 141                         "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
 142                         "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
 143                         "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
 144                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 145                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 146                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 147                         NULL,
 148                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 149                         NULL,
 150                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 151                         NULL,
 152                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 153                         NULL,
 154                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 155                         NULL,
 156                         "ioctl[IEEE80211_IOCTL_WDSMAC]",
 157                         NULL,
 158                         "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
 159                         NULL,
 160                         "ioctl[IEEE80211_IOCTL_KICKMAC]",
 161                 };
 162 #else /* MADWIFI_NG */
 163                 int first = IEEE80211_IOCTL_SETPARAM;
 164                 static const char *opnames[] = {
 165                         "ioctl[IEEE80211_IOCTL_SETPARAM]",
 166                         "ioctl[IEEE80211_IOCTL_GETPARAM]",
 167                         "ioctl[IEEE80211_IOCTL_SETKEY]",
 168                         "ioctl[SIOCIWFIRSTPRIV+3]",
 169                         "ioctl[IEEE80211_IOCTL_DELKEY]",
 170                         "ioctl[SIOCIWFIRSTPRIV+5]",
 171                         "ioctl[IEEE80211_IOCTL_SETMLME]",
 172                         "ioctl[SIOCIWFIRSTPRIV+7]",
 173                         "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 174                         "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 175                         "ioctl[IEEE80211_IOCTL_ADDMAC]",
 176                         "ioctl[SIOCIWFIRSTPRIV+11]",
 177                         "ioctl[IEEE80211_IOCTL_DELMAC]",
 178                         "ioctl[SIOCIWFIRSTPRIV+13]",
 179                         "ioctl[IEEE80211_IOCTL_CHANLIST]",
 180                         "ioctl[SIOCIWFIRSTPRIV+15]",
 181                         "ioctl[IEEE80211_IOCTL_GETRSN]",
 182                         "ioctl[SIOCIWFIRSTPRIV+17]",
 183                         "ioctl[IEEE80211_IOCTL_GETKEY]",
 184                 };
 185 #endif /* MADWIFI_NG */
 186                 int idx = op - first;
 187                 if (first <= op &&
 188                     idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
 189                     opnames[idx])
 190                         perror(opnames[idx]);
 191                 else
 192                         perror("ioctl[unknown???]");
 193                 return -1;
 194         }
 195         return 0;
 196 }
 197
 198 static int
 199 set80211param(struct madwifi_driver_data *drv, int op, int arg)
 200 {
 201         struct iwreq iwr;
 202
 203         memset(&iwr, 0, sizeof(iwr));
 204         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
 205         iwr.u.mode = op;
 206         memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
 207
 208         if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 209                 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 210                 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
 211                            "arg %d)", __func__, op, arg);
 212                 return -1;
 213         }
 214         return 0;
 215 }
 216
 217 #ifndef CONFIG_NO_STDOUT_DEBUG
 218 static const char *
 219 ether_sprintf(const u8 *addr)
 220 {
 221         static char buf[sizeof(MACSTR)];
 222
 223         if (addr != NULL)
 224                 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
 225         else
 226                 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
 227         return buf;
 228 }
 229 #endif /* CONFIG_NO_STDOUT_DEBUG */
 230
 231 /*
 232  * Configure WPA parameters.
 233  */
 234 static int
 235 madwifi_configure_wpa(struct madwifi_driver_data *drv)
 236 {
 237         struct hostapd_data *hapd = drv->hapd;
 238         struct hostapd_bss_config *conf = hapd->conf;
 239         int v;
 240
 241         switch (conf->wpa_group) {
 242         case WPA_CIPHER_CCMP:
 243                 v = IEEE80211_CIPHER_AES_CCM;
 244                 break;
 245         case WPA_CIPHER_TKIP:
 246                 v = IEEE80211_CIPHER_TKIP;
 247                 break;
 248         case WPA_CIPHER_WEP104:
 249                 v = IEEE80211_CIPHER_WEP;
 250                 break;
 251         case WPA_CIPHER_WEP40:
 252                 v = IEEE80211_CIPHER_WEP;
 253                 break;
 254         case WPA_CIPHER_NONE:
 255                 v = IEEE80211_CIPHER_NONE;
 256                 break;
 257         default:
 258                 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
 259                            conf->wpa_group);
 260                 return -1;
 261         }
 262         wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
 263         if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
 264                 printf("Unable to set group key cipher to %u\n", v);
 265                 return -1;
 266         }
 267         if (v == IEEE80211_CIPHER_WEP) {
 268                 /* key length is done only for specific ciphers */
 269                 v = (conf->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
 270                 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
 271                         printf("Unable to set group key length to %u\n", v);
 272                         return -1;
 273                 }
 274         }
 275
 276         v = 0;
 277         if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 278                 v |= 1<<IEEE80211_CIPHER_AES_CCM;
 279         if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 280                 v |= 1<<IEEE80211_CIPHER_TKIP;
 281         if (conf->wpa_pairwise & WPA_CIPHER_NONE)
 282                 v |= 1<<IEEE80211_CIPHER_NONE;
 283         wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
 284         if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
 285                 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
 286                 return -1;
 287         }
 288
 289         wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
 290                    __func__, conf->wpa_key_mgmt);
 291         if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS, conf->wpa_key_mgmt)) {
 292                 printf("Unable to set key management algorithms to 0x%x\n",
 293                         conf->wpa_key_mgmt);
 294                 return -1;
 295         }
 296
 297         v = 0;
 298         if (conf->rsn_preauth)
 299                 v |= BIT(0);
 300         wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
 301                    __func__, conf->rsn_preauth);
 302         if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
 303                 printf("Unable to set RSN capabilities to 0x%x\n", v);
 304                 return -1;
 305         }
 306
 307         wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, conf->wpa);
 308         if (set80211param(drv, IEEE80211_PARAM_WPA, conf->wpa)) {
 309                 printf("Unable to set WPA to %u\n", conf->wpa);
 310                 return -1;
 311         }
 312         return 0;
 313 }
 314
 315
 316 static int
 317 madwifi_set_iface_flags(void *priv, int dev_up)
 318 {
 319         struct madwifi_driver_data *drv = priv;
 320         struct ifreq ifr;
 321
 322         wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
 323
 324         if (drv->ioctl_sock < 0)
 325                 return -1;
 326
 327         memset(&ifr, 0, sizeof(ifr));
 328         os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
 329
 330         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
 331                 perror("ioctl[SIOCGIFFLAGS]");
 332                 return -1;
 333         }
 334
 335         if (dev_up)
 336                 ifr.ifr_flags |= IFF_UP;
 337         else
 338                 ifr.ifr_flags &= ~IFF_UP;
 339
 340         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
 341                 perror("ioctl[SIOCSIFFLAGS]");
 342                 return -1;
 343         }
 344
 345         if (dev_up) {
 346                 memset(&ifr, 0, sizeof(ifr));
 347                 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
 348                 ifr.ifr_mtu = HOSTAPD_MTU;
 349                 if (ioctl(drv->ioctl_sock, SIOCSIFMTU, &ifr) != 0) {
 350                         perror("ioctl[SIOCSIFMTU]");
 351                         printf("Setting MTU failed - trying to survive with "
 352                                "current value\n");
 353                 }
 354         }
 355
 356         return 0;
 357 }
 358
 359 static int
 360 madwifi_set_ieee8021x(const char *ifname, void *priv, int enabled)
 361 {
 362         struct madwifi_driver_data *drv = priv;
 363         struct hostapd_data *hapd = drv->hapd;
 364         struct hostapd_bss_config *conf = hapd->conf;
 365
 366         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 367
 368         if (!enabled) {
 369                 /* XXX restore state */
 370                 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 371                         IEEE80211_AUTH_AUTO);
 372         }
 373         if (!conf->wpa && !conf->ieee802_1x) {
 374                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
 375                         HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
 376                 return -1;
 377         }
 378         if (conf->wpa && madwifi_configure_wpa(drv) != 0) {
 379                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
 380                         HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
 381                 return -1;
 382         }
 383         if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
 384                 (conf->wpa ?  IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
 385                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
 386                         HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
 387                 return -1;
 388         }
 389
 390         return 0;
 391 }
 392
 393 static int
 394 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
 395 {
 396         struct madwifi_driver_data *drv = priv;
 397
 398         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 399
 400         return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
 401 }
 402
 403 static int
 404 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
 405 {
 406         struct madwifi_driver_data *drv = priv;
 407         struct ieee80211req_mlme mlme;
 408         int ret;
 409
 410         wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
 411                    __func__, ether_sprintf(addr), authorized);
 412
 413         if (authorized)
 414                 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
 415         else
 416                 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
 417         mlme.im_reason = 0;
 418         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 419         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 420         if (ret < 0) {
 421                 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
 422                            __func__, authorized ? "" : "un", MAC2STR(addr));
 423         }
 424
 425         return ret;
 426 }
 427
 428 static int
 429 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
 430                       int flags_or, int flags_and)
 431 {
 432         /* For now, only support setting Authorized flag */
 433         if (flags_or & WLAN_STA_AUTHORIZED)
 434                 return madwifi_set_sta_authorized(priv, addr, 1);
 435         if (!(flags_and & WLAN_STA_AUTHORIZED))
 436                 return madwifi_set_sta_authorized(priv, addr, 0);
 437         return 0;
 438 }
 439
 440 static int
 441 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
 442 {
 443         struct madwifi_driver_data *drv = priv;
 444         struct ieee80211req_del_key wk;
 445         int ret;
 446
 447         wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
 448                    __func__, ether_sprintf(addr), key_idx);
 449
 450         memset(&wk, 0, sizeof(wk));
 451         if (addr != NULL) {
 452                 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 453                 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
 454         } else {
 455                 wk.idk_keyix = key_idx;
 456         }
 457
 458         ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
 459         if (ret < 0) {
 460                 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
 461                            " key_idx %d)", __func__, ether_sprintf(addr),
 462                            key_idx);
 463         }
 464
 465         return ret;
 466 }
 467
 468 static int
 469 madwifi_set_key(const char *ifname, void *priv, wpa_alg alg,
 470                 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
 471                 size_t seq_len, const u8 *key, size_t key_len)
 472 {
 473         struct madwifi_driver_data *drv = priv;
 474         struct ieee80211req_key wk;
 475         u_int8_t cipher;
 476         int ret;
 477
 478         if (alg == WPA_ALG_NONE)
 479                 return madwifi_del_key(drv, addr, key_idx);
 480
 481         wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
 482                    __func__, alg, ether_sprintf(addr), key_idx);
 483
 484         if (alg == WPA_ALG_WEP)
 485                 cipher = IEEE80211_CIPHER_WEP;
 486         else if (alg == WPA_ALG_TKIP)
 487                 cipher = IEEE80211_CIPHER_TKIP;
 488         else if (alg == WPA_ALG_CCMP)
 489                 cipher = IEEE80211_CIPHER_AES_CCM;
 490         else {
 491                 printf("%s: unknown/unsupported algorithm %d\n",
 492                         __func__, alg);
 493                 return -1;
 494         }
 495
 496         if (key_len > sizeof(wk.ik_keydata)) {
 497                 printf("%s: key length %lu too big\n", __func__,
 498                        (unsigned long) key_len);
 499                 return -3;
 500         }
 501
 502         memset(&wk, 0, sizeof(wk));
 503         wk.ik_type = cipher;
 504         wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
 505         if (addr == NULL) {
 506                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 507                 wk.ik_keyix = key_idx;
 508                 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
 509         } else {
 510                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 511                 wk.ik_keyix = IEEE80211_KEYIX_NONE;
 512         }
 513         wk.ik_keylen = key_len;
 514         memcpy(wk.ik_keydata, key, key_len);
 515
 516         ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
 517         if (ret < 0) {
 518                 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
 519                            " key_idx %d alg %d key_len %lu set_tx %d)",
 520                            __func__, ether_sprintf(wk.ik_macaddr), key_idx,
 521                            alg, (unsigned long) key_len, set_tx);
 522         }
 523
 524         return ret;
 525 }
 526
 527
 528 static int
 529 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
 530                    u8 *seq)
 531 {
 532         struct madwifi_driver_data *drv = priv;
 533         struct ieee80211req_key wk;
 534
 535         wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
 536                    __func__, ether_sprintf(addr), idx);
 537
 538         memset(&wk, 0, sizeof(wk));
 539         if (addr == NULL)
 540                 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
 541         else
 542                 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 543         wk.ik_keyix = idx;
 544
 545         if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
 546                 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
 547                            "(addr " MACSTR " key_idx %d)",
 548                            __func__, MAC2STR(wk.ik_macaddr), idx);
 549                 return -1;
 550         }
 551
 552 #ifdef WORDS_BIGENDIAN
 553         {
 554                 /*
 555                  * wk.ik_keytsc is in host byte order (big endian), need to
 556                  * swap it to match with the byte order used in WPA.
 557                  */
 558                 int i;
 559                 u8 tmp[WPA_KEY_RSC_LEN];
 560                 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 561                 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
 562                         seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
 563                 }
 564         }
 565 #else /* WORDS_BIGENDIAN */
 566         memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
 567 #endif /* WORDS_BIGENDIAN */
 568         return 0;
 569 }
 570
 571
 572 static int
 573 madwifi_flush(void *priv)
 574 {
 575 #ifdef MADWIFI_BSD
 576         u8 allsta[IEEE80211_ADDR_LEN];
 577         memset(allsta, 0xff, IEEE80211_ADDR_LEN);
 578         return madwifi_sta_deauth(priv, allsta, IEEE80211_REASON_AUTH_LEAVE);
 579 #else /* MADWIFI_BSD */
 580         return 0;               /* XXX */
 581 #endif /* MADWIFI_BSD */
 582 }
 583
 584
 585 static int
 586 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 587                              const u8 *addr)
 588 {
 589         struct madwifi_driver_data *drv = priv;
 590
 591 #ifdef MADWIFI_BSD
 592         struct ieee80211req_sta_stats stats;
 593
 594         memset(data, 0, sizeof(*data));
 595
 596         /*
 597          * Fetch statistics for station from the system.
 598          */
 599         memset(&stats, 0, sizeof(stats));
 600         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 601         if (set80211priv(drv,
 602 #ifdef MADWIFI_NG
 603                          IEEE80211_IOCTL_STA_STATS,
 604 #else /* MADWIFI_NG */
 605                          IEEE80211_IOCTL_GETSTASTATS,
 606 #endif /* MADWIFI_NG */
 607                          &stats, sizeof(stats))) {
 608                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 609                            MACSTR ")", __func__, MAC2STR(addr));
 610                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 611                         memcpy(data, &drv->acct_data, sizeof(*data));
 612                         return 0;
 613                 }
 614
 615                 printf("Failed to get station stats information element.\n");
 616                 return -1;
 617         }
 618
 619         data->rx_packets = stats.is_stats.ns_rx_data;
 620         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 621         data->tx_packets = stats.is_stats.ns_tx_data;
 622         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 623         return 0;
 624
 625 #else /* MADWIFI_BSD */
 626
 627         char buf[1024], line[128], *pos;
 628         FILE *f;
 629         unsigned long val;
 630
 631         memset(data, 0, sizeof(*data));
 632         snprintf(buf, sizeof(buf), "/proc/net/madwifi/%s/" MACSTR,
 633                  drv->iface, MAC2STR(addr));
 634
 635         f = fopen(buf, "r");
 636         if (!f) {
 637                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) != 0)
 638                         return -1;
 639                 memcpy(data, &drv->acct_data, sizeof(*data));
 640                 return 0;
 641         }
 642         /* Need to read proc file with in one piece, so use large enough
 643          * buffer. */
 644         setbuffer(f, buf, sizeof(buf));
 645
 646         while (fgets(line, sizeof(line), f)) {
 647                 pos = strchr(line, '=');
 648                 if (!pos)
 649                         continue;
 650                 *pos++ = '\0';
 651                 val = strtoul(pos, NULL, 10);
 652                 if (strcmp(line, "rx_packets") == 0)
 653                         data->rx_packets = val;
 654                 else if (strcmp(line, "tx_packets") == 0)
 655                         data->tx_packets = val;
 656                 else if (strcmp(line, "rx_bytes") == 0)
 657                         data->rx_bytes = val;
 658                 else if (strcmp(line, "tx_bytes") == 0)
 659                         data->tx_bytes = val;
 660         }
 661
 662         fclose(f);
 663
 664         return 0;
 665 #endif /* MADWIFI_BSD */
 666 }
 667
 668
 669 static int
 670 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 671 {
 672 #if defined(MADWIFI_BSD) && defined(IEEE80211_MLME_CLEAR_STATS)
 673         struct madwifi_driver_data *drv = priv;
 674         struct ieee80211req_mlme mlme;
 675         int ret;
 676
 677         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 678
 679         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 680         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 681         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 682                            sizeof(mlme));
 683         if (ret < 0) {
 684                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 685                            MACSTR ")", __func__, MAC2STR(addr));
 686         }
 687
 688         return ret;
 689 #else /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 690         return 0; /* FIX */
 691 #endif /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 692 }
 693
 694
 695 static int
 696 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
 697 {
 698         /*
 699          * Do nothing; we setup parameters at startup that define the
 700          * contents of the beacon information element.
 701          */
 702         return 0;
 703 }
 704
 705 static int
 706 madwifi_sta_deauth(void *priv, const u8 *addr, int reason_code)
 707 {
 708         struct madwifi_driver_data *drv = priv;
 709         struct ieee80211req_mlme mlme;
 710         int ret;
 711
 712         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 713                    __func__, ether_sprintf(addr), reason_code);
 714
 715         mlme.im_op = IEEE80211_MLME_DEAUTH;
 716         mlme.im_reason = reason_code;
 717         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 718         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 719         if (ret < 0) {
 720                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 721                            " reason %d)",
 722                            __func__, MAC2STR(addr), reason_code);
 723         }
 724
 725         return ret;
 726 }
 727
 728 static int
 729 madwifi_sta_disassoc(void *priv, const u8 *addr, int reason_code)
 730 {
 731         struct madwifi_driver_data *drv = priv;
 732         struct ieee80211req_mlme mlme;
 733         int ret;
 734
 735         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 736                    __func__, ether_sprintf(addr), reason_code);
 737
 738         mlme.im_op = IEEE80211_MLME_DISASSOC;
 739         mlme.im_reason = reason_code;
 740         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 741         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 742         if (ret < 0) {
 743                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 744                            MACSTR " reason %d)",
 745                            __func__, MAC2STR(addr), reason_code);
 746         }
 747
 748         return ret;
 749 }
 750
 751 #ifdef CONFIG_WPS
 752 #ifdef IEEE80211_IOCTL_FILTERFRAME
 753 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 754                                 size_t len)
 755 {
 756         struct madwifi_driver_data *drv = ctx;
 757         const struct ieee80211_mgmt *mgmt;
 758         const u8 *end, *ie;
 759         u16 fc;
 760         size_t ie_len;
 761
 762         /* Send Probe Request information to WPS processing */
 763
 764         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 765                 return;
 766         mgmt = (const struct ieee80211_mgmt *) buf;
 767
 768         fc = le_to_host16(mgmt->frame_control);
 769         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 770             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 771                 return;
 772
 773         end = buf + len;
 774         ie = mgmt->u.probe_req.variable;
 775         ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 776
 777         hostapd_wps_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
 778 }
 779 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 780 #endif /* CONFIG_WPS */
 781
 782 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 783 {
 784         int ret = 0;
 785 #ifdef CONFIG_WPS
 786 #ifdef IEEE80211_IOCTL_FILTERFRAME
 787         struct ieee80211req_set_filter filt;
 788
 789         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 790         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 791
 792         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 793                            sizeof(struct ieee80211req_set_filter));
 794         if (ret)
 795                 return ret;
 796
 797         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 798                                        madwifi_raw_receive, drv, 1);
 799         if (drv->sock_raw == NULL)
 800                 return -1;
 801 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 802 #endif /* CONFIG_WPS */
 803         return ret;
 804 }
 805
 806 #ifdef CONFIG_WPS
 807 static int
 808 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 809 {
 810         struct madwifi_driver_data *drv = priv;
 811         u8 buf[256];
 812         struct ieee80211req_getset_appiebuf *beac_ie;
 813
 814         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 815                    (unsigned long) len);
 816
 817         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 818         beac_ie->app_frmtype = frametype;
 819         beac_ie->app_buflen = len;
 820         memcpy(&(beac_ie->app_buf[0]), ie, len);
 821
 822         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 823                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 824 }
 825
 826 static int
 827 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
 828                           size_t len)
 829 {
 830         return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
 831 }
 832
 833 static int
 834 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
 835                               size_t len)
 836 {
 837         return madwifi_set_wps_ie(priv, ie, len,
 838                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 839 }
 840 #else /* CONFIG_WPS */
 841 #define madwifi_set_wps_beacon_ie NULL
 842 #define madwifi_set_wps_probe_resp_ie NULL
 843 #endif /* CONFIG_WPS */
 844
 845 static int
 846 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 847 {
 848         struct hostapd_data *hapd = drv->hapd;
 849         struct ieee80211req_wpaie ie;
 850         int ielen = 0, res;
 851         u8 *iebuf = NULL;
 852
 853         /*
 854          * Fetch negotiated WPA/RSN parameters from the system.
 855          */
 856         memset(&ie, 0, sizeof(ie));
 857         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 858         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 859                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE",
 860                            __func__);
 861                 goto no_ie;
 862         }
 863         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 864                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 865         iebuf = ie.wpa_ie;
 866         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 867          * Assume the IE was not included if the IE type is unknown. */
 868         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 869                 iebuf[1] = 0;
 870 #ifdef MADWIFI_NG
 871         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 872                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 873         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 874                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 875                  * set. This is needed for WPA2. */
 876                 iebuf = ie.rsn_ie;
 877                 if (iebuf[0] != WLAN_EID_RSN)
 878                         iebuf[1] = 0;
 879         }
 880 #endif /* MADWIFI_NG */
 881
 882         ielen = iebuf[1];
 883         if (ielen == 0)
 884                 iebuf = NULL;
 885         else
 886                 ielen += 2;
 887
 888 no_ie:
 889         res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
 890
 891         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 892                 /* Cached accounting data is not valid anymore. */
 893                 memset(drv->acct_mac, 0, ETH_ALEN);
 894                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 895         }
 896
 897         return res;
 898 }
 899
 900 static void
 901 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 902                                        char *custom)
 903 {
 904         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 905
 906         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 907                 char *pos;
 908                 u8 addr[ETH_ALEN];
 909                 pos = strstr(custom, "addr=");
 910                 if (pos == NULL) {
 911                         wpa_printf(MSG_DEBUG,
 912                                    "MLME-MICHAELMICFAILURE.indication "
 913                                    "without sender address ignored");
 914                         return;
 915                 }
 916                 pos += 5;
 917                 if (hwaddr_aton(pos, addr) == 0) {
 918                         hostapd_michael_mic_failure(drv->hapd, addr);
 919                 } else {
 920                         wpa_printf(MSG_DEBUG,
 921                                    "MLME-MICHAELMICFAILURE.indication "
 922                                    "with invalid MAC address");
 923                 }
 924         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 925                 char *key, *value;
 926                 u32 val;
 927                 key = custom;
 928                 while ((key = strchr(key, '\n')) != NULL) {
 929                         key++;
 930                         value = strchr(key, '=');
 931                         if (value == NULL)
 932                                 continue;
 933                         *value++ = '\0';
 934                         val = strtoul(value, NULL, 10);
 935                         if (strcmp(key, "mac") == 0)
 936                                 hwaddr_aton(value, drv->acct_mac);
 937                         else if (strcmp(key, "rx_packets") == 0)
 938                                 drv->acct_data.rx_packets = val;
 939                         else if (strcmp(key, "tx_packets") == 0)
 940                                 drv->acct_data.tx_packets = val;
 941                         else if (strcmp(key, "rx_bytes") == 0)
 942                                 drv->acct_data.rx_bytes = val;
 943                         else if (strcmp(key, "tx_bytes") == 0)
 944                                 drv->acct_data.tx_bytes = val;
 945                         key = value;
 946                 }
 947         }
 948 }
 949
 950 static void
 951 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 952                                             char *data, int len)
 953 {
 954         struct iw_event iwe_buf, *iwe = &iwe_buf;
 955         char *pos, *end, *custom, *buf;
 956
 957         pos = data;
 958         end = data + len;
 959
 960         while (pos + IW_EV_LCP_LEN <= end) {
 961                 /* Event data may be unaligned, so make a local, aligned copy
 962                  * before processing. */
 963                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 964                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 965                            iwe->cmd, iwe->len);
 966                 if (iwe->len <= IW_EV_LCP_LEN)
 967                         return;
 968
 969                 custom = pos + IW_EV_POINT_LEN;
 970                 if (drv->we_version > 18 &&
 971                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 972                      iwe->cmd == IWEVCUSTOM)) {
 973                         /* WE-19 removed the pointer from struct iw_point */
 974                         char *dpos = (char *) &iwe_buf.u.data.length;
 975                         int dlen = dpos - (char *) &iwe_buf;
 976                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 977                                sizeof(struct iw_event) - dlen);
 978                 } else {
 979                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 980                         custom += IW_EV_POINT_OFF;
 981                 }
 982
 983                 switch (iwe->cmd) {
 984                 case IWEVEXPIRED:
 985                         hostapd_notif_disassoc(drv->hapd,
 986                                                (u8 *) iwe->u.addr.sa_data);
 987                         break;
 988                 case IWEVREGISTERED:
 989                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 990                         break;
 991                 case IWEVCUSTOM:
 992                         if (custom + iwe->u.data.length > end)
 993                                 return;
 994                         buf = malloc(iwe->u.data.length + 1);
 995                         if (buf == NULL)
 996                                 return;         /* XXX */
 997                         memcpy(buf, custom, iwe->u.data.length);
 998                         buf[iwe->u.data.length] = '\0';
 999                         madwifi_wireless_event_wireless_custom(drv, buf);
1000                         free(buf);
1001                         break;
1002                 }
1003
1004                 pos += iwe->len;
1005         }
1006 }
1007
1008
1009 static void
1010 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
1011                                                struct nlmsghdr *h, int len)
1012 {
1013         struct ifinfomsg *ifi;
1014         int attrlen, nlmsg_len, rta_len;
1015         struct rtattr * attr;
1016
1017         if (len < (int) sizeof(*ifi))
1018                 return;
1019
1020         ifi = NLMSG_DATA(h);
1021
1022         if (ifi->ifi_index != drv->ifindex)
1023                 return;
1024
1025         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
1026
1027         attrlen = h->nlmsg_len - nlmsg_len;
1028         if (attrlen < 0)
1029                 return;
1030
1031         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
1032
1033         rta_len = RTA_ALIGN(sizeof(struct rtattr));
1034         while (RTA_OK(attr, attrlen)) {
1035                 if (attr->rta_type == IFLA_WIRELESS) {
1036                         madwifi_wireless_event_wireless(
1037                                 drv, ((char *) attr) + rta_len,
1038                                 attr->rta_len - rta_len);
1039                 }
1040                 attr = RTA_NEXT(attr, attrlen);
1041         }
1042 }
1043
1044
1045 static void
1046 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
1047 {
1048         char buf[256];
1049         int left;
1050         struct sockaddr_nl from;
1051         socklen_t fromlen;
1052         struct nlmsghdr *h;
1053         struct madwifi_driver_data *drv = eloop_ctx;
1054
1055         fromlen = sizeof(from);
1056         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
1057                         (struct sockaddr *) &from, &fromlen);
1058         if (left < 0) {
1059                 if (errno != EINTR && errno != EAGAIN)
1060                         perror("recvfrom(netlink)");
1061                 return;
1062         }
1063
1064         h = (struct nlmsghdr *) buf;
1065         while (left >= (int) sizeof(*h)) {
1066                 int len, plen;
1067
1068                 len = h->nlmsg_len;
1069                 plen = len - sizeof(*h);
1070                 if (len > left || plen < 0) {
1071                         printf("Malformed netlink message: "
1072                                "len=%d left=%d plen=%d\n",
1073                                len, left, plen);
1074                         break;
1075                 }
1076
1077                 switch (h->nlmsg_type) {
1078                 case RTM_NEWLINK:
1079                         madwifi_wireless_event_rtm_newlink(drv, h, plen);
1080                         break;
1081                 }
1082
1083                 len = NLMSG_ALIGN(len);
1084                 left -= len;
1085                 h = (struct nlmsghdr *) ((char *) h + len);
1086         }
1087
1088         if (left > 0) {
1089                 printf("%d extra bytes in the end of netlink message\n", left);
1090         }
1091 }
1092
1093
1094 static int
1095 madwifi_get_we_version(struct madwifi_driver_data *drv)
1096 {
1097         struct iw_range *range;
1098         struct iwreq iwr;
1099         int minlen;
1100         size_t buflen;
1101
1102         drv->we_version = 0;
1103
1104         /*
1105          * Use larger buffer than struct iw_range in order to allow the
1106          * structure to grow in the future.
1107          */
1108         buflen = sizeof(struct iw_range) + 500;
1109         range = os_zalloc(buflen);
1110         if (range == NULL)
1111                 return -1;
1112
1113         memset(&iwr, 0, sizeof(iwr));
1114         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1115         iwr.u.data.pointer = (caddr_t) range;
1116         iwr.u.data.length = buflen;
1117
1118         minlen = ((char *) &range->enc_capa) - (char *) range +
1119                 sizeof(range->enc_capa);
1120
1121         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1122                 perror("ioctl[SIOCGIWRANGE]");
1123                 free(range);
1124                 return -1;
1125         } else if (iwr.u.data.length >= minlen &&
1126                    range->we_version_compiled >= 18) {
1127                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1128                            "WE(source)=%d enc_capa=0x%x",
1129                            range->we_version_compiled,
1130                            range->we_version_source,
1131                            range->enc_capa);
1132                 drv->we_version = range->we_version_compiled;
1133         }
1134
1135         free(range);
1136         return 0;
1137 }
1138
1139
1140 static int
1141 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1142 {
1143         int s;
1144         struct sockaddr_nl local;
1145
1146         madwifi_get_we_version(drv);
1147
1148         drv->wext_sock = -1;
1149
1150         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1151         if (s < 0) {
1152                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1153                 return -1;
1154         }
1155
1156         memset(&local, 0, sizeof(local));
1157         local.nl_family = AF_NETLINK;
1158         local.nl_groups = RTMGRP_LINK;
1159         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1160                 perror("bind(netlink)");
1161                 close(s);
1162                 return -1;
1163         }
1164
1165         eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1166         drv->wext_sock = s;
1167
1168         return 0;
1169 }
1170
1171
1172 static void
1173 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1174 {
1175         if (drv->wext_sock < 0)
1176                 return;
1177         eloop_unregister_read_sock(drv->wext_sock);
1178         close(drv->wext_sock);
1179 }
1180
1181
1182 static int
1183 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1184                    int encrypt, const u8 *own_addr)
1185 {
1186         struct madwifi_driver_data *drv = priv;
1187         unsigned char buf[3000];
1188         unsigned char *bp = buf;
1189         struct l2_ethhdr *eth;
1190         size_t len;
1191         int status;
1192
1193         /*
1194          * Prepend the Ethernet header.  If the caller left us
1195          * space at the front we could just insert it but since
1196          * we don't know we copy to a local buffer.  Given the frequency
1197          * and size of frames this probably doesn't matter.
1198          */
1199         len = data_len + sizeof(struct l2_ethhdr);
1200         if (len > sizeof(buf)) {
1201                 bp = malloc(len);
1202                 if (bp == NULL) {
1203                         printf("EAPOL frame discarded, cannot malloc temp "
1204                                "buffer of size %lu!\n", (unsigned long) len);
1205                         return -1;
1206                 }
1207         }
1208         eth = (struct l2_ethhdr *) bp;
1209         memcpy(eth->h_dest, addr, ETH_ALEN);
1210         memcpy(eth->h_source, own_addr, ETH_ALEN);
1211         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1212         memcpy(eth+1, data, data_len);
1213
1214         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1215
1216         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1217
1218         if (bp != buf)
1219                 free(bp);
1220         return status;
1221 }
1222
1223 static void
1224 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1225 {
1226         struct madwifi_driver_data *drv = ctx;
1227         hostapd_eapol_receive(drv->hapd, src_addr,
1228                               buf + sizeof(struct l2_ethhdr),
1229                               len - sizeof(struct l2_ethhdr));
1230 }
1231
1232 static void *
1233 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1234 {
1235         struct madwifi_driver_data *drv;
1236         struct ifreq ifr;
1237         struct iwreq iwr;
1238
1239         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1240         if (drv == NULL) {
1241                 printf("Could not allocate memory for madwifi driver data\n");
1242                 return NULL;
1243         }
1244
1245         drv->hapd = hapd;
1246         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1247         if (drv->ioctl_sock < 0) {
1248                 perror("socket[PF_INET,SOCK_DGRAM]");
1249                 goto bad;
1250         }
1251         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1252
1253         memset(&ifr, 0, sizeof(ifr));
1254         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1255         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1256                 perror("ioctl(SIOCGIFINDEX)");
1257                 goto bad;
1258         }
1259         drv->ifindex = ifr.ifr_ifindex;
1260
1261         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1262                                         handle_read, drv, 1);
1263         if (drv->sock_xmit == NULL)
1264                 goto bad;
1265         if (l2_packet_get_own_addr(drv->sock_xmit, hapd->own_addr))
1266                 goto bad;
1267         if (params->bridge[0]) {
1268                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1269                            params->bridge[0]);
1270                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1271                                                 ETH_P_EAPOL, handle_read, drv,
1272                                                 1);
1273                 if (drv->sock_recv == NULL)
1274                         goto bad;
1275         } else
1276                 drv->sock_recv = drv->sock_xmit;
1277
1278         memset(&iwr, 0, sizeof(iwr));
1279         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1280
1281         iwr.u.mode = IW_MODE_MASTER;
1282
1283         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1284                 perror("ioctl[SIOCSIWMODE]");
1285                 printf("Could not set interface to master mode!\n");
1286                 goto bad;
1287         }
1288
1289         madwifi_set_iface_flags(drv, 0);        /* mark down during setup */
1290         madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1291
1292         madwifi_receive_probe_req(drv);
1293
1294         if (madwifi_wireless_event_init(drv))
1295                 goto bad;
1296
1297         return drv;
1298 bad:
1299         if (drv->sock_xmit != NULL)
1300                 l2_packet_deinit(drv->sock_xmit);
1301         if (drv->ioctl_sock >= 0)
1302                 close(drv->ioctl_sock);
1303         if (drv != NULL)
1304                 free(drv);
1305         return NULL;
1306 }
1307
1308
1309 static void
1310 madwifi_deinit(void *priv)
1311 {
1312         struct madwifi_driver_data *drv = priv;
1313
1314         madwifi_wireless_event_deinit(drv);
1315         (void) madwifi_set_iface_flags(drv, 0);
1316         if (drv->ioctl_sock >= 0)
1317                 close(drv->ioctl_sock);
1318         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1319                 l2_packet_deinit(drv->sock_recv);
1320         if (drv->sock_xmit != NULL)
1321                 l2_packet_deinit(drv->sock_xmit);
1322         if (drv->sock_raw)
1323                 l2_packet_deinit(drv->sock_raw);
1324         free(drv);
1325 }
1326
1327 static int
1328 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1329 {
1330         struct madwifi_driver_data *drv = priv;
1331         struct iwreq iwr;
1332
1333         memset(&iwr, 0, sizeof(iwr));
1334         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1335         iwr.u.essid.flags = 1; /* SSID active */
1336         iwr.u.essid.pointer = (caddr_t) buf;
1337         iwr.u.essid.length = len + 1;
1338
1339         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1340                 perror("ioctl[SIOCSIWESSID]");
1341                 printf("len=%d\n", len);
1342                 return -1;
1343         }
1344         return 0;
1345 }
1346
1347 static int
1348 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1349 {
1350         struct madwifi_driver_data *drv = priv;
1351         struct iwreq iwr;
1352         int ret = 0;
1353
1354         memset(&iwr, 0, sizeof(iwr));
1355         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1356         iwr.u.essid.pointer = (caddr_t) buf;
1357         iwr.u.essid.length = len;
1358
1359         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1360                 perror("ioctl[SIOCGIWESSID]");
1361                 ret = -1;
1362         } else
1363                 ret = iwr.u.essid.length;
1364
1365         return ret;
1366 }
1367
1368 static int
1369 madwifi_set_countermeasures(void *priv, int enabled)
1370 {
1371         struct madwifi_driver_data *drv = priv;
1372         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1373         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1374 }
1375
1376 static int
1377 madwifi_commit(void *priv)
1378 {
1379         return madwifi_set_iface_flags(priv, 1);
1380 }
1381
1382 #else /* HOSTAPD */
1383
1384 struct wpa_driver_madwifi_data {
1385         void *wext; /* private data for driver_wext */
1386         void *ctx;
1387         char ifname[IFNAMSIZ + 1];
1388         int sock;
1389 };
1390
1391 static int
1392 set80211priv(struct wpa_driver_madwifi_data *drv, int op, void *data, int len,
1393              int show_err)
1394 {
1395         struct iwreq iwr;
1396
1397         os_memset(&iwr, 0, sizeof(iwr));
1398         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1399         if (len < IFNAMSIZ &&
1400             op != IEEE80211_IOCTL_SET_APPIEBUF) {
1401                 /*
1402                  * Argument data fits inline; put it there.
1403                  */
1404                 os_memcpy(iwr.u.name, data, len);
1405         } else {
1406                 /*
1407                  * Argument data too big for inline transfer; setup a
1408                  * parameter block instead; the kernel will transfer
1409                  * the data for the driver.
1410                  */
1411                 iwr.u.data.pointer = data;
1412                 iwr.u.data.length = len;
1413         }
1414
1415         if (ioctl(drv->sock, op, &iwr) < 0) {
1416                 if (show_err) {
1417 #ifdef MADWIFI_NG
1418                         int first = IEEE80211_IOCTL_SETPARAM;
1419                         int last = IEEE80211_IOCTL_KICKMAC;
1420                         static const char *opnames[] = {
1421                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1422                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1423                                 "ioctl[IEEE80211_IOCTL_SETMODE]",
1424                                 "ioctl[IEEE80211_IOCTL_GETMODE]",
1425                                 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
1426                                 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
1427                                 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
1428                                 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
1429                                 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
1430                                 NULL,
1431                                 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
1432                                 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
1433                                 NULL,
1434                                 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
1435                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1436                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1437                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1438                                 NULL,
1439                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1440                                 NULL,
1441                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1442                                 NULL,
1443                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1444                                 NULL,
1445                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1446                                 NULL,
1447                                 "ioctl[IEEE80211_IOCTL_WDSMAC]",
1448                                 NULL,
1449                                 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
1450                                 NULL,
1451                                 "ioctl[IEEE80211_IOCTL_KICKMAC]",
1452                         };
1453 #else /* MADWIFI_NG */
1454                         int first = IEEE80211_IOCTL_SETPARAM;
1455                         int last = IEEE80211_IOCTL_CHANLIST;
1456                         static const char *opnames[] = {
1457                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1458                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1459                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1460                                 "ioctl[IEEE80211_IOCTL_GETKEY]",
1461                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1462                                 NULL,
1463                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1464                                 NULL,
1465                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1466                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1467                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1468                                 NULL,
1469                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1470                                 NULL,
1471                                 "ioctl[IEEE80211_IOCTL_CHANLIST]",
1472                         };
1473 #endif /* MADWIFI_NG */
1474                         int idx = op - first;
1475                         if (first <= op && op <= last &&
1476                             idx < (int) (sizeof(opnames) / sizeof(opnames[0]))
1477                             && opnames[idx])
1478                                 perror(opnames[idx]);
1479                         else
1480                                 perror("ioctl[unknown???]");
1481                 }
1482                 return -1;
1483         }
1484         return 0;
1485 }
1486
1487 static int
1488 set80211param(struct wpa_driver_madwifi_data *drv, int op, int arg,
1489               int show_err)
1490 {
1491         struct iwreq iwr;
1492
1493         os_memset(&iwr, 0, sizeof(iwr));
1494         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1495         iwr.u.mode = op;
1496         os_memcpy(iwr.u.name+sizeof(u32), &arg, sizeof(arg));
1497
1498         if (ioctl(drv->sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
1499                 if (show_err)
1500                         perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
1501                 return -1;
1502         }
1503         return 0;
1504 }
1505
1506 static int
1507 wpa_driver_madwifi_set_wpa_ie(struct wpa_driver_madwifi_data *drv,
1508                               const u8 *wpa_ie, size_t wpa_ie_len)
1509 {
1510         struct iwreq iwr;
1511
1512         os_memset(&iwr, 0, sizeof(iwr));
1513         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1514         /* NB: SETOPTIE is not fixed-size so must not be inlined */
1515         iwr.u.data.pointer = (void *) wpa_ie;
1516         iwr.u.data.length = wpa_ie_len;
1517
1518         if (ioctl(drv->sock, IEEE80211_IOCTL_SETOPTIE, &iwr) < 0) {
1519                 perror("ioctl[IEEE80211_IOCTL_SETOPTIE]");
1520                 return -1;
1521         }
1522         return 0;
1523 }
1524
1525 static int
1526 wpa_driver_madwifi_del_key(struct wpa_driver_madwifi_data *drv, int key_idx,
1527                            const u8 *addr)
1528 {
1529         struct ieee80211req_del_key wk;
1530
1531         wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __FUNCTION__, key_idx);
1532         os_memset(&wk, 0, sizeof(wk));
1533         wk.idk_keyix = key_idx;
1534         if (addr != NULL)
1535                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
1536
1537         return set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk), 1);
1538 }
1539
1540 static int
1541 wpa_driver_madwifi_set_key(void *priv, wpa_alg alg,
1542                            const u8 *addr, int key_idx, int set_tx,
1543                            const u8 *seq, size_t seq_len,
1544                            const u8 *key, size_t key_len)
1545 {
1546         struct wpa_driver_madwifi_data *drv = priv;
1547         struct ieee80211req_key wk;
1548         char *alg_name;
1549         u_int8_t cipher;
1550
1551         if (alg == WPA_ALG_NONE)
1552                 return wpa_driver_madwifi_del_key(drv, key_idx, addr);
1553
1554         switch (alg) {
1555         case WPA_ALG_WEP:
1556                 if (addr == NULL || os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1557                                               ETH_ALEN) == 0) {
1558                         /*
1559                          * madwifi did not seem to like static WEP key
1560                          * configuration with IEEE80211_IOCTL_SETKEY, so use
1561                          * Linux wireless extensions ioctl for this.
1562                          */
1563                         return wpa_driver_wext_set_key(drv->wext, alg, addr,
1564                                                        key_idx, set_tx,
1565                                                        seq, seq_len,
1566                                                        key, key_len);
1567                 }
1568                 alg_name = "WEP";
1569                 cipher = IEEE80211_CIPHER_WEP;
1570                 break;
1571         case WPA_ALG_TKIP:
1572                 alg_name = "TKIP";
1573                 cipher = IEEE80211_CIPHER_TKIP;
1574                 break;
1575         case WPA_ALG_CCMP:
1576                 alg_name = "CCMP";
1577                 cipher = IEEE80211_CIPHER_AES_CCM;
1578                 break;
1579         default:
1580                 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1581                         __FUNCTION__, alg);
1582                 return -1;
1583         }
1584
1585         wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
1586                    "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
1587                    (unsigned long) seq_len, (unsigned long) key_len);
1588
1589         if (seq_len > sizeof(u_int64_t)) {
1590                 wpa_printf(MSG_DEBUG, "%s: seq_len %lu too big",
1591                            __FUNCTION__, (unsigned long) seq_len);
1592                 return -2;
1593         }
1594         if (key_len > sizeof(wk.ik_keydata)) {
1595                 wpa_printf(MSG_DEBUG, "%s: key length %lu too big",
1596                            __FUNCTION__, (unsigned long) key_len);
1597                 return -3;
1598         }
1599
1600         os_memset(&wk, 0, sizeof(wk));
1601         wk.ik_type = cipher;
1602         wk.ik_flags = IEEE80211_KEY_RECV;
1603         if (addr == NULL ||
1604             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1605                 wk.ik_flags |= IEEE80211_KEY_GROUP;
1606         if (set_tx) {
1607                 wk.ik_flags |= IEEE80211_KEY_XMIT | IEEE80211_KEY_DEFAULT;
1608                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1609         } else
1610                 os_memset(wk.ik_macaddr, 0, IEEE80211_ADDR_LEN);
1611         wk.ik_keyix = key_idx;
1612         wk.ik_keylen = key_len;
1613 #ifdef WORDS_BIGENDIAN
1614 #define WPA_KEY_RSC_LEN 8
1615         {
1616                 size_t i;
1617                 u8 tmp[WPA_KEY_RSC_LEN];
1618                 os_memset(tmp, 0, sizeof(tmp));
1619                 for (i = 0; i < seq_len; i++)
1620                         tmp[WPA_KEY_RSC_LEN - i - 1] = seq[i];
1621                 os_memcpy(&wk.ik_keyrsc, tmp, WPA_KEY_RSC_LEN);
1622         }
1623 #else /* WORDS_BIGENDIAN */
1624         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1625 #endif /* WORDS_BIGENDIAN */
1626         os_memcpy(wk.ik_keydata, key, key_len);
1627
1628         return set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk), 1);
1629 }
1630
1631 static int
1632 wpa_driver_madwifi_set_countermeasures(void *priv, int enabled)
1633 {
1634         struct wpa_driver_madwifi_data *drv = priv;
1635         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1636         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled, 1);
1637 }
1638
1639
1640 static int
1641 wpa_driver_madwifi_set_drop_unencrypted(void *priv, int enabled)
1642 {
1643         struct wpa_driver_madwifi_data *drv = priv;
1644         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1645         return set80211param(drv, IEEE80211_PARAM_DROPUNENCRYPTED, enabled, 1);
1646 }
1647
1648 static int
1649 wpa_driver_madwifi_deauthenticate(void *priv, const u8 *addr, int reason_code)
1650 {
1651         struct wpa_driver_madwifi_data *drv = priv;
1652         struct ieee80211req_mlme mlme;
1653
1654         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1655         mlme.im_op = IEEE80211_MLME_DEAUTH;
1656         mlme.im_reason = reason_code;
1657         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1658         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1659 }
1660
1661 static int
1662 wpa_driver_madwifi_disassociate(void *priv, const u8 *addr, int reason_code)
1663 {
1664         struct wpa_driver_madwifi_data *drv = priv;
1665         struct ieee80211req_mlme mlme;
1666
1667         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1668         mlme.im_op = IEEE80211_MLME_DISASSOC;
1669         mlme.im_reason = reason_code;
1670         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1671         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1672 }
1673
1674 static int
1675 wpa_driver_madwifi_associate(void *priv,
1676                              struct wpa_driver_associate_params *params)
1677 {
1678         struct wpa_driver_madwifi_data *drv = priv;
1679         struct ieee80211req_mlme mlme;
1680         int ret = 0, privacy = 1;
1681
1682         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1683
1684         /*
1685          * NB: Don't need to set the freq or cipher-related state as
1686          *     this is implied by the bssid which is used to locate
1687          *     the scanned node state which holds it.  The ssid is
1688          *     needed to disambiguate an AP that broadcasts multiple
1689          *     ssid's but uses the same bssid.
1690          */
1691         /* XXX error handling is wrong but unclear what to do... */
1692         if (wpa_driver_madwifi_set_wpa_ie(drv, params->wpa_ie,
1693                                           params->wpa_ie_len) < 0)
1694                 ret = -1;
1695
1696         if (params->pairwise_suite == CIPHER_NONE &&
1697             params->group_suite == CIPHER_NONE &&
1698             params->key_mgmt_suite == KEY_MGMT_NONE &&
1699             params->wpa_ie_len == 0)
1700                 privacy = 0;
1701
1702         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, privacy, 1) < 0)
1703                 ret = -1;
1704
1705         if (params->wpa_ie_len &&
1706             set80211param(drv, IEEE80211_PARAM_WPA,
1707                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1, 1) < 0)
1708                 ret = -1;
1709
1710         if (params->bssid == NULL) {
1711                 /* ap_scan=2 mode - driver takes care of AP selection and
1712                  * roaming */
1713                 /* FIX: this does not seem to work; would probably need to
1714                  * change something in the driver */
1715                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0)
1716                         ret = -1;
1717
1718                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1719                                              params->ssid_len) < 0)
1720                         ret = -1;
1721         } else {
1722                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0)
1723                         ret = -1;
1724                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1725                                              params->ssid_len) < 0)
1726                         ret = -1;
1727                 os_memset(&mlme, 0, sizeof(mlme));
1728                 mlme.im_op = IEEE80211_MLME_ASSOC;
1729                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1730                 if (set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
1731                                  sizeof(mlme), 1) < 0) {
1732                         wpa_printf(MSG_DEBUG, "%s: SETMLME[ASSOC] failed",
1733                                    __func__);
1734                         ret = -1;
1735                 }
1736         }
1737
1738         return ret;
1739 }
1740
1741 static int
1742 wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg)
1743 {
1744         struct wpa_driver_madwifi_data *drv = priv;
1745         int authmode;
1746
1747         if ((auth_alg & AUTH_ALG_OPEN_SYSTEM) &&
1748             (auth_alg & AUTH_ALG_SHARED_KEY))
1749                 authmode = IEEE80211_AUTH_AUTO;
1750         else if (auth_alg & AUTH_ALG_SHARED_KEY)
1751                 authmode = IEEE80211_AUTH_SHARED;
1752         else
1753                 authmode = IEEE80211_AUTH_OPEN;
1754
1755         return set80211param(drv, IEEE80211_PARAM_AUTHMODE, authmode, 1);
1756 }
1757
1758 static int
1759 wpa_driver_madwifi_scan(void *priv, const u8 *ssid, size_t ssid_len)
1760 {
1761         struct wpa_driver_madwifi_data *drv = priv;
1762         struct iwreq iwr;
1763         int ret = 0;
1764
1765         os_memset(&iwr, 0, sizeof(iwr));
1766         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1767
1768         /* set desired ssid before scan */
1769         /* FIX: scan should not break the current association, so using
1770          * set_ssid may not be the best way of doing this.. */
1771         if (wpa_driver_wext_set_ssid(drv->wext, ssid, ssid_len) < 0)
1772                 ret = -1;
1773
1774         if (ioctl(drv->sock, SIOCSIWSCAN, &iwr) < 0) {
1775                 perror("ioctl[SIOCSIWSCAN]");
1776                 ret = -1;
1777         }
1778
1779         /*
1780          * madwifi delivers a scan complete event so no need to poll, but
1781          * register a backup timeout anyway to make sure that we recover even
1782          * if the driver does not send this event for any reason. This timeout
1783          * will only be used if the event is not delivered (event handler will
1784          * cancel the timeout).
1785          */
1786         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv->wext,
1787                              drv->ctx);
1788         eloop_register_timeout(30, 0, wpa_driver_wext_scan_timeout, drv->wext,
1789                                drv->ctx);
1790
1791         return ret;
1792 }
1793
1794 static int wpa_driver_madwifi_get_bssid(void *priv, u8 *bssid)
1795 {
1796         struct wpa_driver_madwifi_data *drv = priv;
1797         return wpa_driver_wext_get_bssid(drv->wext, bssid);
1798 }
1799
1800
1801 static int wpa_driver_madwifi_get_ssid(void *priv, u8 *ssid)
1802 {
1803         struct wpa_driver_madwifi_data *drv = priv;
1804         return wpa_driver_wext_get_ssid(drv->wext, ssid);
1805 }
1806
1807
1808 static struct wpa_scan_results *
1809 wpa_driver_madwifi_get_scan_results(void *priv)
1810 {
1811         struct wpa_driver_madwifi_data *drv = priv;
1812         return wpa_driver_wext_get_scan_results(drv->wext);
1813 }
1814
1815
1816 static int wpa_driver_madwifi_set_operstate(void *priv, int state)
1817 {
1818         struct wpa_driver_madwifi_data *drv = priv;
1819         return wpa_driver_wext_set_operstate(drv->wext, state);
1820 }
1821
1822
1823 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1824                                                size_t ies_len)
1825 {
1826         struct ieee80211req_getset_appiebuf *probe_req_ie;
1827         int ret;
1828
1829         probe_req_ie = os_malloc(sizeof(*probe_req_ie) + ies_len);
1830         if (probe_req_ie == NULL)
1831                 return -1;
1832
1833         probe_req_ie->app_frmtype = IEEE80211_APPIE_FRAME_PROBE_REQ;
1834         probe_req_ie->app_buflen = ies_len;
1835         os_memcpy(probe_req_ie->app_buf, ies, ies_len);
1836
1837         ret = set80211priv(priv, IEEE80211_IOCTL_SET_APPIEBUF, probe_req_ie,
1838                            sizeof(struct ieee80211req_getset_appiebuf) +
1839                            ies_len, 1);
1840
1841         os_free(probe_req_ie);
1842
1843         return ret;
1844 }
1845
1846
1847 static void * wpa_driver_madwifi_init(void *ctx, const char *ifname)
1848 {
1849         struct wpa_driver_madwifi_data *drv;
1850
1851         drv = os_zalloc(sizeof(*drv));
1852         if (drv == NULL)
1853                 return NULL;
1854         drv->wext = wpa_driver_wext_init(ctx, ifname);
1855         if (drv->wext == NULL)
1856                 goto fail;
1857
1858         drv->ctx = ctx;
1859         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1860         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1861         if (drv->sock < 0)
1862                 goto fail2;
1863
1864         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0) {
1865                 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1866                            "roaming", __FUNCTION__);
1867                 goto fail3;
1868         }
1869
1870         if (set80211param(drv, IEEE80211_PARAM_WPA, 3, 1) < 0) {
1871                 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support",
1872                            __FUNCTION__);
1873                 goto fail3;
1874         }
1875
1876         return drv;
1877
1878 fail3:
1879         close(drv->sock);
1880 fail2:
1881         wpa_driver_wext_deinit(drv->wext);
1882 fail:
1883         os_free(drv);
1884         return NULL;
1885 }
1886
1887
1888 static void wpa_driver_madwifi_deinit(void *priv)
1889 {
1890         struct wpa_driver_madwifi_data *drv = priv;
1891
1892         if (wpa_driver_madwifi_set_wpa_ie(drv, NULL, 0) < 0) {
1893                 wpa_printf(MSG_DEBUG, "%s: failed to clear WPA IE",
1894                            __FUNCTION__);
1895         }
1896         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0) {
1897                 wpa_printf(MSG_DEBUG, "%s: failed to enable driver-based "
1898                            "roaming", __FUNCTION__);
1899         }
1900         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, 0, 1) < 0) {
1901                 wpa_printf(MSG_DEBUG, "%s: failed to disable forced Privacy "
1902                            "flag", __FUNCTION__);
1903         }
1904         if (set80211param(drv, IEEE80211_PARAM_WPA, 0, 1) < 0) {
1905                 wpa_printf(MSG_DEBUG, "%s: failed to disable WPA",
1906                            __FUNCTION__);
1907         }
1908
1909         wpa_driver_wext_deinit(drv->wext);
1910
1911         close(drv->sock);
1912         os_free(drv);
1913 }
1914
1915 #endif /* HOSTAPD */
1916
1917
1918 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
1919         .name                   = "madwifi",
1920         .desc                   = "MADWIFI 802.11 support (Atheros, etc.)",
1921 #ifdef HOSTAPD
1922         .hapd_init              = madwifi_init,
1923         .hapd_deinit            = madwifi_deinit,
1924         .set_ieee8021x          = madwifi_set_ieee8021x,
1925         .set_privacy            = madwifi_set_privacy,
1926         .hapd_set_key           = madwifi_set_key,
1927         .get_seqnum             = madwifi_get_seqnum,
1928         .flush                  = madwifi_flush,
1929         .set_generic_elem       = madwifi_set_opt_ie,
1930         .sta_set_flags          = madwifi_sta_set_flags,
1931         .read_sta_data          = madwifi_read_sta_driver_data,
1932         .hapd_send_eapol        = madwifi_send_eapol,
1933         .sta_disassoc           = madwifi_sta_disassoc,
1934         .sta_deauth             = madwifi_sta_deauth,
1935         .hapd_set_ssid          = madwifi_set_ssid,
1936         .hapd_get_ssid          = madwifi_get_ssid,
1937         .hapd_set_countermeasures       = madwifi_set_countermeasures,
1938         .sta_clear_stats        = madwifi_sta_clear_stats,
1939         .commit                 = madwifi_commit,
1940         .set_wps_beacon_ie      = madwifi_set_wps_beacon_ie,
1941         .set_wps_probe_resp_ie  = madwifi_set_wps_probe_resp_ie,
1942 #else /* HOSTAPD */
1943         .get_bssid              = wpa_driver_madwifi_get_bssid,
1944         .get_ssid               = wpa_driver_madwifi_get_ssid,
1945         .set_key                = wpa_driver_madwifi_set_key,
1946         .init                   = wpa_driver_madwifi_init,
1947         .deinit                 = wpa_driver_madwifi_deinit,
1948         .set_countermeasures    = wpa_driver_madwifi_set_countermeasures,
1949         .set_drop_unencrypted   = wpa_driver_madwifi_set_drop_unencrypted,
1950         .scan                   = wpa_driver_madwifi_scan,
1951         .get_scan_results2      = wpa_driver_madwifi_get_scan_results,
1952         .deauthenticate         = wpa_driver_madwifi_deauthenticate,
1953         .disassociate           = wpa_driver_madwifi_disassociate,
1954         .associate              = wpa_driver_madwifi_associate,
1955         .set_auth_alg           = wpa_driver_madwifi_set_auth_alg,
1956         .set_operstate          = wpa_driver_madwifi_set_operstate,
1957         .set_probe_req_ie       = wpa_driver_madwifi_set_probe_req_ie,
1958 #endif /* HOSTAPD */
1959 };