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/sta_flags.h"
  75
  76
  77 struct madwifi_driver_data {
  78         struct hostapd_data *hapd;              /* back pointer */
  79
  80         char    iface[IFNAMSIZ + 1];
  81         int     ifindex;
  82         struct l2_packet_data *sock_xmit;       /* raw packet xmit socket */
  83         struct l2_packet_data *sock_recv;       /* raw packet recv socket */
  84         int     ioctl_sock;                     /* socket for ioctl() use */
  85         int     wext_sock;                      /* socket for wireless events */
  86         int     we_version;
  87         u8      acct_mac[ETH_ALEN];
  88         struct hostap_sta_driver_data acct_data;
  89
  90         struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
  91 };
  92
  93 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
  94                               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, NULL, allsta,
 579                                   IEEE80211_REASON_AUTH_LEAVE);
 580 #else /* MADWIFI_BSD */
 581         return 0;               /* XXX */
 582 #endif /* MADWIFI_BSD */
 583 }
 584
 585
 586 static int
 587 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
 588                              const u8 *addr)
 589 {
 590         struct madwifi_driver_data *drv = priv;
 591
 592 #ifdef MADWIFI_BSD
 593         struct ieee80211req_sta_stats stats;
 594
 595         memset(data, 0, sizeof(*data));
 596
 597         /*
 598          * Fetch statistics for station from the system.
 599          */
 600         memset(&stats, 0, sizeof(stats));
 601         memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
 602         if (set80211priv(drv,
 603 #ifdef MADWIFI_NG
 604                          IEEE80211_IOCTL_STA_STATS,
 605 #else /* MADWIFI_NG */
 606                          IEEE80211_IOCTL_GETSTASTATS,
 607 #endif /* MADWIFI_NG */
 608                          &stats, sizeof(stats))) {
 609                 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
 610                            MACSTR ")", __func__, MAC2STR(addr));
 611                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 612                         memcpy(data, &drv->acct_data, sizeof(*data));
 613                         return 0;
 614                 }
 615
 616                 printf("Failed to get station stats information element.\n");
 617                 return -1;
 618         }
 619
 620         data->rx_packets = stats.is_stats.ns_rx_data;
 621         data->rx_bytes = stats.is_stats.ns_rx_bytes;
 622         data->tx_packets = stats.is_stats.ns_tx_data;
 623         data->tx_bytes = stats.is_stats.ns_tx_bytes;
 624         return 0;
 625
 626 #else /* MADWIFI_BSD */
 627
 628         char buf[1024], line[128], *pos;
 629         FILE *f;
 630         unsigned long val;
 631
 632         memset(data, 0, sizeof(*data));
 633         snprintf(buf, sizeof(buf), "/proc/net/madwifi/%s/" MACSTR,
 634                  drv->iface, MAC2STR(addr));
 635
 636         f = fopen(buf, "r");
 637         if (!f) {
 638                 if (memcmp(addr, drv->acct_mac, ETH_ALEN) != 0)
 639                         return -1;
 640                 memcpy(data, &drv->acct_data, sizeof(*data));
 641                 return 0;
 642         }
 643         /* Need to read proc file with in one piece, so use large enough
 644          * buffer. */
 645         setbuffer(f, buf, sizeof(buf));
 646
 647         while (fgets(line, sizeof(line), f)) {
 648                 pos = strchr(line, '=');
 649                 if (!pos)
 650                         continue;
 651                 *pos++ = '\0';
 652                 val = strtoul(pos, NULL, 10);
 653                 if (strcmp(line, "rx_packets") == 0)
 654                         data->rx_packets = val;
 655                 else if (strcmp(line, "tx_packets") == 0)
 656                         data->tx_packets = val;
 657                 else if (strcmp(line, "rx_bytes") == 0)
 658                         data->rx_bytes = val;
 659                 else if (strcmp(line, "tx_bytes") == 0)
 660                         data->tx_bytes = val;
 661         }
 662
 663         fclose(f);
 664
 665         return 0;
 666 #endif /* MADWIFI_BSD */
 667 }
 668
 669
 670 static int
 671 madwifi_sta_clear_stats(void *priv, const u8 *addr)
 672 {
 673 #if defined(MADWIFI_BSD) && defined(IEEE80211_MLME_CLEAR_STATS)
 674         struct madwifi_driver_data *drv = priv;
 675         struct ieee80211req_mlme mlme;
 676         int ret;
 677
 678         wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
 679
 680         mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
 681         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 682         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 683                            sizeof(mlme));
 684         if (ret < 0) {
 685                 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
 686                            MACSTR ")", __func__, MAC2STR(addr));
 687         }
 688
 689         return ret;
 690 #else /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 691         return 0; /* FIX */
 692 #endif /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
 693 }
 694
 695
 696 static int
 697 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
 698 {
 699         /*
 700          * Do nothing; we setup parameters at startup that define the
 701          * contents of the beacon information element.
 702          */
 703         return 0;
 704 }
 705
 706 static int
 707 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 708                    int reason_code)
 709 {
 710         struct madwifi_driver_data *drv = priv;
 711         struct ieee80211req_mlme mlme;
 712         int ret;
 713
 714         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 715                    __func__, ether_sprintf(addr), reason_code);
 716
 717         mlme.im_op = IEEE80211_MLME_DEAUTH;
 718         mlme.im_reason = reason_code;
 719         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 720         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 721         if (ret < 0) {
 722                 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
 723                            " reason %d)",
 724                            __func__, MAC2STR(addr), reason_code);
 725         }
 726
 727         return ret;
 728 }
 729
 730 static int
 731 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
 732                      int reason_code)
 733 {
 734         struct madwifi_driver_data *drv = priv;
 735         struct ieee80211req_mlme mlme;
 736         int ret;
 737
 738         wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
 739                    __func__, ether_sprintf(addr), reason_code);
 740
 741         mlme.im_op = IEEE80211_MLME_DISASSOC;
 742         mlme.im_reason = reason_code;
 743         memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 744         ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
 745         if (ret < 0) {
 746                 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
 747                            MACSTR " reason %d)",
 748                            __func__, MAC2STR(addr), reason_code);
 749         }
 750
 751         return ret;
 752 }
 753
 754 #ifdef CONFIG_WPS
 755 #ifdef IEEE80211_IOCTL_FILTERFRAME
 756 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
 757                                 size_t len)
 758 {
 759         struct madwifi_driver_data *drv = ctx;
 760         const struct ieee80211_mgmt *mgmt;
 761         const u8 *end, *ie;
 762         u16 fc;
 763         size_t ie_len;
 764
 765         /* Send Probe Request information to WPS processing */
 766
 767         if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
 768                 return;
 769         mgmt = (const struct ieee80211_mgmt *) buf;
 770
 771         fc = le_to_host16(mgmt->frame_control);
 772         if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
 773             WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
 774                 return;
 775
 776         end = buf + len;
 777         ie = mgmt->u.probe_req.variable;
 778         ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
 779
 780         hostapd_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
 781 }
 782 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 783 #endif /* CONFIG_WPS */
 784
 785 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
 786 {
 787         int ret = 0;
 788 #ifdef CONFIG_WPS
 789 #ifdef IEEE80211_IOCTL_FILTERFRAME
 790         struct ieee80211req_set_filter filt;
 791
 792         wpa_printf(MSG_DEBUG, "%s Enter", __func__);
 793         filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
 794
 795         ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
 796                            sizeof(struct ieee80211req_set_filter));
 797         if (ret)
 798                 return ret;
 799
 800         drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
 801                                        madwifi_raw_receive, drv, 1);
 802         if (drv->sock_raw == NULL)
 803                 return -1;
 804 #endif /* IEEE80211_IOCTL_FILTERFRAME */
 805 #endif /* CONFIG_WPS */
 806         return ret;
 807 }
 808
 809 #ifdef CONFIG_WPS
 810 static int
 811 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
 812 {
 813         struct madwifi_driver_data *drv = priv;
 814         u8 buf[256];
 815         struct ieee80211req_getset_appiebuf *beac_ie;
 816
 817         wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
 818                    (unsigned long) len);
 819
 820         beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
 821         beac_ie->app_frmtype = frametype;
 822         beac_ie->app_buflen = len;
 823         memcpy(&(beac_ie->app_buf[0]), ie, len);
 824
 825         return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
 826                             sizeof(struct ieee80211req_getset_appiebuf) + len);
 827 }
 828
 829 static int
 830 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
 831                           size_t len)
 832 {
 833         return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
 834 }
 835
 836 static int
 837 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
 838                               size_t len)
 839 {
 840         return madwifi_set_wps_ie(priv, ie, len,
 841                                   IEEE80211_APPIE_FRAME_PROBE_RESP);
 842 }
 843 #else /* CONFIG_WPS */
 844 #define madwifi_set_wps_beacon_ie NULL
 845 #define madwifi_set_wps_probe_resp_ie NULL
 846 #endif /* CONFIG_WPS */
 847
 848 static int
 849 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
 850 {
 851         struct hostapd_data *hapd = drv->hapd;
 852         struct ieee80211req_wpaie ie;
 853         int ielen = 0, res;
 854         u8 *iebuf = NULL;
 855
 856         /*
 857          * Fetch negotiated WPA/RSN parameters from the system.
 858          */
 859         memset(&ie, 0, sizeof(ie));
 860         memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
 861         if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
 862                 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE",
 863                            __func__);
 864                 goto no_ie;
 865         }
 866         wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
 867                     ie.wpa_ie, IEEE80211_MAX_OPT_IE);
 868         iebuf = ie.wpa_ie;
 869         /* madwifi seems to return some random data if WPA/RSN IE is not set.
 870          * Assume the IE was not included if the IE type is unknown. */
 871         if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
 872                 iebuf[1] = 0;
 873 #ifdef MADWIFI_NG
 874         wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
 875                     ie.rsn_ie, IEEE80211_MAX_OPT_IE);
 876         if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
 877                 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
 878                  * set. This is needed for WPA2. */
 879                 iebuf = ie.rsn_ie;
 880                 if (iebuf[0] != WLAN_EID_RSN)
 881                         iebuf[1] = 0;
 882         }
 883 #endif /* MADWIFI_NG */
 884
 885         ielen = iebuf[1];
 886         if (ielen == 0)
 887                 iebuf = NULL;
 888         else
 889                 ielen += 2;
 890
 891 no_ie:
 892         res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
 893
 894         if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
 895                 /* Cached accounting data is not valid anymore. */
 896                 memset(drv->acct_mac, 0, ETH_ALEN);
 897                 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
 898         }
 899
 900         return res;
 901 }
 902
 903 static void
 904 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
 905                                        char *custom)
 906 {
 907         wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
 908
 909         if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 910                 char *pos;
 911                 u8 addr[ETH_ALEN];
 912                 pos = strstr(custom, "addr=");
 913                 if (pos == NULL) {
 914                         wpa_printf(MSG_DEBUG,
 915                                    "MLME-MICHAELMICFAILURE.indication "
 916                                    "without sender address ignored");
 917                         return;
 918                 }
 919                 pos += 5;
 920                 if (hwaddr_aton(pos, addr) == 0) {
 921                         hostapd_michael_mic_failure(drv->hapd, addr);
 922                 } else {
 923                         wpa_printf(MSG_DEBUG,
 924                                    "MLME-MICHAELMICFAILURE.indication "
 925                                    "with invalid MAC address");
 926                 }
 927         } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
 928                 char *key, *value;
 929                 u32 val;
 930                 key = custom;
 931                 while ((key = strchr(key, '\n')) != NULL) {
 932                         key++;
 933                         value = strchr(key, '=');
 934                         if (value == NULL)
 935                                 continue;
 936                         *value++ = '\0';
 937                         val = strtoul(value, NULL, 10);
 938                         if (strcmp(key, "mac") == 0)
 939                                 hwaddr_aton(value, drv->acct_mac);
 940                         else if (strcmp(key, "rx_packets") == 0)
 941                                 drv->acct_data.rx_packets = val;
 942                         else if (strcmp(key, "tx_packets") == 0)
 943                                 drv->acct_data.tx_packets = val;
 944                         else if (strcmp(key, "rx_bytes") == 0)
 945                                 drv->acct_data.rx_bytes = val;
 946                         else if (strcmp(key, "tx_bytes") == 0)
 947                                 drv->acct_data.tx_bytes = val;
 948                         key = value;
 949                 }
 950         }
 951 }
 952
 953 static void
 954 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
 955                                             char *data, int len)
 956 {
 957         struct iw_event iwe_buf, *iwe = &iwe_buf;
 958         char *pos, *end, *custom, *buf;
 959
 960         pos = data;
 961         end = data + len;
 962
 963         while (pos + IW_EV_LCP_LEN <= end) {
 964                 /* Event data may be unaligned, so make a local, aligned copy
 965                  * before processing. */
 966                 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 967                 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
 968                            iwe->cmd, iwe->len);
 969                 if (iwe->len <= IW_EV_LCP_LEN)
 970                         return;
 971
 972                 custom = pos + IW_EV_POINT_LEN;
 973                 if (drv->we_version > 18 &&
 974                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 975                      iwe->cmd == IWEVCUSTOM)) {
 976                         /* WE-19 removed the pointer from struct iw_point */
 977                         char *dpos = (char *) &iwe_buf.u.data.length;
 978                         int dlen = dpos - (char *) &iwe_buf;
 979                         memcpy(dpos, pos + IW_EV_LCP_LEN,
 980                                sizeof(struct iw_event) - dlen);
 981                 } else {
 982                         memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 983                         custom += IW_EV_POINT_OFF;
 984                 }
 985
 986                 switch (iwe->cmd) {
 987                 case IWEVEXPIRED:
 988                         hostapd_notif_disassoc(drv->hapd,
 989                                                (u8 *) iwe->u.addr.sa_data);
 990                         break;
 991                 case IWEVREGISTERED:
 992                         madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
 993                         break;
 994                 case IWEVCUSTOM:
 995                         if (custom + iwe->u.data.length > end)
 996                                 return;
 997                         buf = malloc(iwe->u.data.length + 1);
 998                         if (buf == NULL)
 999                                 return;         /* XXX */
1000                         memcpy(buf, custom, iwe->u.data.length);
1001                         buf[iwe->u.data.length] = '\0';
1002                         madwifi_wireless_event_wireless_custom(drv, buf);
1003                         free(buf);
1004                         break;
1005                 }
1006
1007                 pos += iwe->len;
1008         }
1009 }
1010
1011
1012 static void
1013 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
1014                                                struct nlmsghdr *h, int len)
1015 {
1016         struct ifinfomsg *ifi;
1017         int attrlen, nlmsg_len, rta_len;
1018         struct rtattr * attr;
1019
1020         if (len < (int) sizeof(*ifi))
1021                 return;
1022
1023         ifi = NLMSG_DATA(h);
1024
1025         if (ifi->ifi_index != drv->ifindex)
1026                 return;
1027
1028         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
1029
1030         attrlen = h->nlmsg_len - nlmsg_len;
1031         if (attrlen < 0)
1032                 return;
1033
1034         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
1035
1036         rta_len = RTA_ALIGN(sizeof(struct rtattr));
1037         while (RTA_OK(attr, attrlen)) {
1038                 if (attr->rta_type == IFLA_WIRELESS) {
1039                         madwifi_wireless_event_wireless(
1040                                 drv, ((char *) attr) + rta_len,
1041                                 attr->rta_len - rta_len);
1042                 }
1043                 attr = RTA_NEXT(attr, attrlen);
1044         }
1045 }
1046
1047
1048 static void
1049 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
1050 {
1051         char buf[256];
1052         int left;
1053         struct sockaddr_nl from;
1054         socklen_t fromlen;
1055         struct nlmsghdr *h;
1056         struct madwifi_driver_data *drv = eloop_ctx;
1057
1058         fromlen = sizeof(from);
1059         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
1060                         (struct sockaddr *) &from, &fromlen);
1061         if (left < 0) {
1062                 if (errno != EINTR && errno != EAGAIN)
1063                         perror("recvfrom(netlink)");
1064                 return;
1065         }
1066
1067         h = (struct nlmsghdr *) buf;
1068         while (left >= (int) sizeof(*h)) {
1069                 int len, plen;
1070
1071                 len = h->nlmsg_len;
1072                 plen = len - sizeof(*h);
1073                 if (len > left || plen < 0) {
1074                         printf("Malformed netlink message: "
1075                                "len=%d left=%d plen=%d\n",
1076                                len, left, plen);
1077                         break;
1078                 }
1079
1080                 switch (h->nlmsg_type) {
1081                 case RTM_NEWLINK:
1082                         madwifi_wireless_event_rtm_newlink(drv, h, plen);
1083                         break;
1084                 }
1085
1086                 len = NLMSG_ALIGN(len);
1087                 left -= len;
1088                 h = (struct nlmsghdr *) ((char *) h + len);
1089         }
1090
1091         if (left > 0) {
1092                 printf("%d extra bytes in the end of netlink message\n", left);
1093         }
1094 }
1095
1096
1097 static int
1098 madwifi_get_we_version(struct madwifi_driver_data *drv)
1099 {
1100         struct iw_range *range;
1101         struct iwreq iwr;
1102         int minlen;
1103         size_t buflen;
1104
1105         drv->we_version = 0;
1106
1107         /*
1108          * Use larger buffer than struct iw_range in order to allow the
1109          * structure to grow in the future.
1110          */
1111         buflen = sizeof(struct iw_range) + 500;
1112         range = os_zalloc(buflen);
1113         if (range == NULL)
1114                 return -1;
1115
1116         memset(&iwr, 0, sizeof(iwr));
1117         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1118         iwr.u.data.pointer = (caddr_t) range;
1119         iwr.u.data.length = buflen;
1120
1121         minlen = ((char *) &range->enc_capa) - (char *) range +
1122                 sizeof(range->enc_capa);
1123
1124         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1125                 perror("ioctl[SIOCGIWRANGE]");
1126                 free(range);
1127                 return -1;
1128         } else if (iwr.u.data.length >= minlen &&
1129                    range->we_version_compiled >= 18) {
1130                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1131                            "WE(source)=%d enc_capa=0x%x",
1132                            range->we_version_compiled,
1133                            range->we_version_source,
1134                            range->enc_capa);
1135                 drv->we_version = range->we_version_compiled;
1136         }
1137
1138         free(range);
1139         return 0;
1140 }
1141
1142
1143 static int
1144 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1145 {
1146         int s;
1147         struct sockaddr_nl local;
1148
1149         madwifi_get_we_version(drv);
1150
1151         drv->wext_sock = -1;
1152
1153         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1154         if (s < 0) {
1155                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1156                 return -1;
1157         }
1158
1159         memset(&local, 0, sizeof(local));
1160         local.nl_family = AF_NETLINK;
1161         local.nl_groups = RTMGRP_LINK;
1162         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1163                 perror("bind(netlink)");
1164                 close(s);
1165                 return -1;
1166         }
1167
1168         eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1169         drv->wext_sock = s;
1170
1171         return 0;
1172 }
1173
1174
1175 static void
1176 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1177 {
1178         if (drv->wext_sock < 0)
1179                 return;
1180         eloop_unregister_read_sock(drv->wext_sock);
1181         close(drv->wext_sock);
1182 }
1183
1184
1185 static int
1186 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1187                    int encrypt, const u8 *own_addr)
1188 {
1189         struct madwifi_driver_data *drv = priv;
1190         unsigned char buf[3000];
1191         unsigned char *bp = buf;
1192         struct l2_ethhdr *eth;
1193         size_t len;
1194         int status;
1195
1196         /*
1197          * Prepend the Ethernet header.  If the caller left us
1198          * space at the front we could just insert it but since
1199          * we don't know we copy to a local buffer.  Given the frequency
1200          * and size of frames this probably doesn't matter.
1201          */
1202         len = data_len + sizeof(struct l2_ethhdr);
1203         if (len > sizeof(buf)) {
1204                 bp = malloc(len);
1205                 if (bp == NULL) {
1206                         printf("EAPOL frame discarded, cannot malloc temp "
1207                                "buffer of size %lu!\n", (unsigned long) len);
1208                         return -1;
1209                 }
1210         }
1211         eth = (struct l2_ethhdr *) bp;
1212         memcpy(eth->h_dest, addr, ETH_ALEN);
1213         memcpy(eth->h_source, own_addr, ETH_ALEN);
1214         eth->h_proto = host_to_be16(ETH_P_EAPOL);
1215         memcpy(eth+1, data, data_len);
1216
1217         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1218
1219         status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1220
1221         if (bp != buf)
1222                 free(bp);
1223         return status;
1224 }
1225
1226 static void
1227 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1228 {
1229         struct madwifi_driver_data *drv = ctx;
1230         hostapd_eapol_receive(drv->hapd, src_addr,
1231                               buf + sizeof(struct l2_ethhdr),
1232                               len - sizeof(struct l2_ethhdr));
1233 }
1234
1235 static void *
1236 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1237 {
1238         struct madwifi_driver_data *drv;
1239         struct ifreq ifr;
1240         struct iwreq iwr;
1241
1242         drv = os_zalloc(sizeof(struct madwifi_driver_data));
1243         if (drv == NULL) {
1244                 printf("Could not allocate memory for madwifi driver data\n");
1245                 return NULL;
1246         }
1247
1248         drv->hapd = hapd;
1249         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1250         if (drv->ioctl_sock < 0) {
1251                 perror("socket[PF_INET,SOCK_DGRAM]");
1252                 goto bad;
1253         }
1254         memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1255
1256         memset(&ifr, 0, sizeof(ifr));
1257         os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1258         if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1259                 perror("ioctl(SIOCGIFINDEX)");
1260                 goto bad;
1261         }
1262         drv->ifindex = ifr.ifr_ifindex;
1263
1264         drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1265                                         handle_read, drv, 1);
1266         if (drv->sock_xmit == NULL)
1267                 goto bad;
1268         if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1269                 goto bad;
1270         if (params->bridge[0]) {
1271                 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1272                            params->bridge[0]);
1273                 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1274                                                 ETH_P_EAPOL, handle_read, drv,
1275                                                 1);
1276                 if (drv->sock_recv == NULL)
1277                         goto bad;
1278         } else
1279                 drv->sock_recv = drv->sock_xmit;
1280
1281         memset(&iwr, 0, sizeof(iwr));
1282         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1283
1284         iwr.u.mode = IW_MODE_MASTER;
1285
1286         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1287                 perror("ioctl[SIOCSIWMODE]");
1288                 printf("Could not set interface to master mode!\n");
1289                 goto bad;
1290         }
1291
1292         madwifi_set_iface_flags(drv, 0);        /* mark down during setup */
1293         madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1294
1295         madwifi_receive_probe_req(drv);
1296
1297         if (madwifi_wireless_event_init(drv))
1298                 goto bad;
1299
1300         return drv;
1301 bad:
1302         if (drv->sock_xmit != NULL)
1303                 l2_packet_deinit(drv->sock_xmit);
1304         if (drv->ioctl_sock >= 0)
1305                 close(drv->ioctl_sock);
1306         if (drv != NULL)
1307                 free(drv);
1308         return NULL;
1309 }
1310
1311
1312 static void
1313 madwifi_deinit(void *priv)
1314 {
1315         struct madwifi_driver_data *drv = priv;
1316
1317         madwifi_wireless_event_deinit(drv);
1318         (void) madwifi_set_iface_flags(drv, 0);
1319         if (drv->ioctl_sock >= 0)
1320                 close(drv->ioctl_sock);
1321         if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1322                 l2_packet_deinit(drv->sock_recv);
1323         if (drv->sock_xmit != NULL)
1324                 l2_packet_deinit(drv->sock_xmit);
1325         if (drv->sock_raw)
1326                 l2_packet_deinit(drv->sock_raw);
1327         free(drv);
1328 }
1329
1330 static int
1331 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1332 {
1333         struct madwifi_driver_data *drv = priv;
1334         struct iwreq iwr;
1335
1336         memset(&iwr, 0, sizeof(iwr));
1337         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1338         iwr.u.essid.flags = 1; /* SSID active */
1339         iwr.u.essid.pointer = (caddr_t) buf;
1340         iwr.u.essid.length = len + 1;
1341
1342         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1343                 perror("ioctl[SIOCSIWESSID]");
1344                 printf("len=%d\n", len);
1345                 return -1;
1346         }
1347         return 0;
1348 }
1349
1350 static int
1351 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1352 {
1353         struct madwifi_driver_data *drv = priv;
1354         struct iwreq iwr;
1355         int ret = 0;
1356
1357         memset(&iwr, 0, sizeof(iwr));
1358         os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1359         iwr.u.essid.pointer = (caddr_t) buf;
1360         iwr.u.essid.length = len;
1361
1362         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1363                 perror("ioctl[SIOCGIWESSID]");
1364                 ret = -1;
1365         } else
1366                 ret = iwr.u.essid.length;
1367
1368         return ret;
1369 }
1370
1371 static int
1372 madwifi_set_countermeasures(void *priv, int enabled)
1373 {
1374         struct madwifi_driver_data *drv = priv;
1375         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1376         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1377 }
1378
1379 static int
1380 madwifi_commit(void *priv)
1381 {
1382         return madwifi_set_iface_flags(priv, 1);
1383 }
1384
1385 #else /* HOSTAPD */
1386
1387 struct wpa_driver_madwifi_data {
1388         void *wext; /* private data for driver_wext */
1389         void *ctx;
1390         char ifname[IFNAMSIZ + 1];
1391         int sock;
1392 };
1393
1394 static int
1395 set80211priv(struct wpa_driver_madwifi_data *drv, int op, void *data, int len,
1396              int show_err)
1397 {
1398         struct iwreq iwr;
1399
1400         os_memset(&iwr, 0, sizeof(iwr));
1401         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1402         if (len < IFNAMSIZ &&
1403             op != IEEE80211_IOCTL_SET_APPIEBUF) {
1404                 /*
1405                  * Argument data fits inline; put it there.
1406                  */
1407                 os_memcpy(iwr.u.name, data, len);
1408         } else {
1409                 /*
1410                  * Argument data too big for inline transfer; setup a
1411                  * parameter block instead; the kernel will transfer
1412                  * the data for the driver.
1413                  */
1414                 iwr.u.data.pointer = data;
1415                 iwr.u.data.length = len;
1416         }
1417
1418         if (ioctl(drv->sock, op, &iwr) < 0) {
1419                 if (show_err) {
1420 #ifdef MADWIFI_NG
1421                         int first = IEEE80211_IOCTL_SETPARAM;
1422                         int last = IEEE80211_IOCTL_KICKMAC;
1423                         static const char *opnames[] = {
1424                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1425                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1426                                 "ioctl[IEEE80211_IOCTL_SETMODE]",
1427                                 "ioctl[IEEE80211_IOCTL_GETMODE]",
1428                                 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
1429                                 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
1430                                 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
1431                                 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
1432                                 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
1433                                 NULL,
1434                                 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
1435                                 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
1436                                 NULL,
1437                                 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
1438                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1439                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1440                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1441                                 NULL,
1442                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1443                                 NULL,
1444                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1445                                 NULL,
1446                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1447                                 NULL,
1448                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1449                                 NULL,
1450                                 "ioctl[IEEE80211_IOCTL_WDSMAC]",
1451                                 NULL,
1452                                 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
1453                                 NULL,
1454                                 "ioctl[IEEE80211_IOCTL_KICKMAC]",
1455                         };
1456 #else /* MADWIFI_NG */
1457                         int first = IEEE80211_IOCTL_SETPARAM;
1458                         int last = IEEE80211_IOCTL_CHANLIST;
1459                         static const char *opnames[] = {
1460                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
1461                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
1462                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
1463                                 "ioctl[IEEE80211_IOCTL_GETKEY]",
1464                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
1465                                 NULL,
1466                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
1467                                 NULL,
1468                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
1469                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
1470                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
1471                                 NULL,
1472                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
1473                                 NULL,
1474                                 "ioctl[IEEE80211_IOCTL_CHANLIST]",
1475                         };
1476 #endif /* MADWIFI_NG */
1477                         int idx = op - first;
1478                         if (first <= op && op <= last &&
1479                             idx < (int) (sizeof(opnames) / sizeof(opnames[0]))
1480                             && opnames[idx])
1481                                 perror(opnames[idx]);
1482                         else
1483                                 perror("ioctl[unknown???]");
1484                 }
1485                 return -1;
1486         }
1487         return 0;
1488 }
1489
1490 static int
1491 set80211param(struct wpa_driver_madwifi_data *drv, int op, int arg,
1492               int show_err)
1493 {
1494         struct iwreq iwr;
1495
1496         os_memset(&iwr, 0, sizeof(iwr));
1497         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1498         iwr.u.mode = op;
1499         os_memcpy(iwr.u.name+sizeof(u32), &arg, sizeof(arg));
1500
1501         if (ioctl(drv->sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
1502                 if (show_err)
1503                         perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
1504                 return -1;
1505         }
1506         return 0;
1507 }
1508
1509 static int
1510 wpa_driver_madwifi_set_wpa_ie(struct wpa_driver_madwifi_data *drv,
1511                               const u8 *wpa_ie, size_t wpa_ie_len)
1512 {
1513         struct iwreq iwr;
1514
1515         os_memset(&iwr, 0, sizeof(iwr));
1516         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1517         /* NB: SETOPTIE is not fixed-size so must not be inlined */
1518         iwr.u.data.pointer = (void *) wpa_ie;
1519         iwr.u.data.length = wpa_ie_len;
1520
1521         if (ioctl(drv->sock, IEEE80211_IOCTL_SETOPTIE, &iwr) < 0) {
1522                 perror("ioctl[IEEE80211_IOCTL_SETOPTIE]");
1523                 return -1;
1524         }
1525         return 0;
1526 }
1527
1528 static int
1529 wpa_driver_madwifi_del_key(struct wpa_driver_madwifi_data *drv, int key_idx,
1530                            const u8 *addr)
1531 {
1532         struct ieee80211req_del_key wk;
1533
1534         wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __FUNCTION__, key_idx);
1535         os_memset(&wk, 0, sizeof(wk));
1536         wk.idk_keyix = key_idx;
1537         if (addr != NULL)
1538                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
1539
1540         return set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk), 1);
1541 }
1542
1543 static int
1544 wpa_driver_madwifi_set_key(void *priv, wpa_alg alg,
1545                            const u8 *addr, int key_idx, int set_tx,
1546                            const u8 *seq, size_t seq_len,
1547                            const u8 *key, size_t key_len)
1548 {
1549         struct wpa_driver_madwifi_data *drv = priv;
1550         struct ieee80211req_key wk;
1551         char *alg_name;
1552         u_int8_t cipher;
1553
1554         if (alg == WPA_ALG_NONE)
1555                 return wpa_driver_madwifi_del_key(drv, key_idx, addr);
1556
1557         switch (alg) {
1558         case WPA_ALG_WEP:
1559                 if (addr == NULL || os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1560                                               ETH_ALEN) == 0) {
1561                         /*
1562                          * madwifi did not seem to like static WEP key
1563                          * configuration with IEEE80211_IOCTL_SETKEY, so use
1564                          * Linux wireless extensions ioctl for this.
1565                          */
1566                         return wpa_driver_wext_set_key(drv->wext, alg, addr,
1567                                                        key_idx, set_tx,
1568                                                        seq, seq_len,
1569                                                        key, key_len);
1570                 }
1571                 alg_name = "WEP";
1572                 cipher = IEEE80211_CIPHER_WEP;
1573                 break;
1574         case WPA_ALG_TKIP:
1575                 alg_name = "TKIP";
1576                 cipher = IEEE80211_CIPHER_TKIP;
1577                 break;
1578         case WPA_ALG_CCMP:
1579                 alg_name = "CCMP";
1580                 cipher = IEEE80211_CIPHER_AES_CCM;
1581                 break;
1582         default:
1583                 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1584                         __FUNCTION__, alg);
1585                 return -1;
1586         }
1587
1588         wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
1589                    "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
1590                    (unsigned long) seq_len, (unsigned long) key_len);
1591
1592         if (seq_len > sizeof(u_int64_t)) {
1593                 wpa_printf(MSG_DEBUG, "%s: seq_len %lu too big",
1594                            __FUNCTION__, (unsigned long) seq_len);
1595                 return -2;
1596         }
1597         if (key_len > sizeof(wk.ik_keydata)) {
1598                 wpa_printf(MSG_DEBUG, "%s: key length %lu too big",
1599                            __FUNCTION__, (unsigned long) key_len);
1600                 return -3;
1601         }
1602
1603         os_memset(&wk, 0, sizeof(wk));
1604         wk.ik_type = cipher;
1605         wk.ik_flags = IEEE80211_KEY_RECV;
1606         if (addr == NULL ||
1607             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1608                 wk.ik_flags |= IEEE80211_KEY_GROUP;
1609         if (set_tx) {
1610                 wk.ik_flags |= IEEE80211_KEY_XMIT | IEEE80211_KEY_DEFAULT;
1611                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1612         } else
1613                 os_memset(wk.ik_macaddr, 0, IEEE80211_ADDR_LEN);
1614         wk.ik_keyix = key_idx;
1615         wk.ik_keylen = key_len;
1616 #ifdef WORDS_BIGENDIAN
1617 #define WPA_KEY_RSC_LEN 8
1618         {
1619                 size_t i;
1620                 u8 tmp[WPA_KEY_RSC_LEN];
1621                 os_memset(tmp, 0, sizeof(tmp));
1622                 for (i = 0; i < seq_len; i++)
1623                         tmp[WPA_KEY_RSC_LEN - i - 1] = seq[i];
1624                 os_memcpy(&wk.ik_keyrsc, tmp, WPA_KEY_RSC_LEN);
1625         }
1626 #else /* WORDS_BIGENDIAN */
1627         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1628 #endif /* WORDS_BIGENDIAN */
1629         os_memcpy(wk.ik_keydata, key, key_len);
1630
1631         return set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk), 1);
1632 }
1633
1634 static int
1635 wpa_driver_madwifi_set_countermeasures(void *priv, int enabled)
1636 {
1637         struct wpa_driver_madwifi_data *drv = priv;
1638         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1639         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled, 1);
1640 }
1641
1642
1643 static int
1644 wpa_driver_madwifi_set_drop_unencrypted(void *priv, int enabled)
1645 {
1646         struct wpa_driver_madwifi_data *drv = priv;
1647         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1648         return set80211param(drv, IEEE80211_PARAM_DROPUNENCRYPTED, enabled, 1);
1649 }
1650
1651 static int
1652 wpa_driver_madwifi_deauthenticate(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_DEAUTH;
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_disassociate(void *priv, const u8 *addr, int reason_code)
1666 {
1667         struct wpa_driver_madwifi_data *drv = priv;
1668         struct ieee80211req_mlme mlme;
1669
1670         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1671         mlme.im_op = IEEE80211_MLME_DISASSOC;
1672         mlme.im_reason = reason_code;
1673         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1674         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
1675 }
1676
1677 static int
1678 wpa_driver_madwifi_associate(void *priv,
1679                              struct wpa_driver_associate_params *params)
1680 {
1681         struct wpa_driver_madwifi_data *drv = priv;
1682         struct ieee80211req_mlme mlme;
1683         int ret = 0, privacy = 1;
1684
1685         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1686
1687         /*
1688          * NB: Don't need to set the freq or cipher-related state as
1689          *     this is implied by the bssid which is used to locate
1690          *     the scanned node state which holds it.  The ssid is
1691          *     needed to disambiguate an AP that broadcasts multiple
1692          *     ssid's but uses the same bssid.
1693          */
1694         /* XXX error handling is wrong but unclear what to do... */
1695         if (wpa_driver_madwifi_set_wpa_ie(drv, params->wpa_ie,
1696                                           params->wpa_ie_len) < 0)
1697                 ret = -1;
1698
1699         if (params->pairwise_suite == CIPHER_NONE &&
1700             params->group_suite == CIPHER_NONE &&
1701             params->key_mgmt_suite == KEY_MGMT_NONE &&
1702             params->wpa_ie_len == 0)
1703                 privacy = 0;
1704
1705         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, privacy, 1) < 0)
1706                 ret = -1;
1707
1708         if (params->wpa_ie_len &&
1709             set80211param(drv, IEEE80211_PARAM_WPA,
1710                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1, 1) < 0)
1711                 ret = -1;
1712
1713         if (params->bssid == NULL) {
1714                 /* ap_scan=2 mode - driver takes care of AP selection and
1715                  * roaming */
1716                 /* FIX: this does not seem to work; would probably need to
1717                  * change something in the driver */
1718                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0)
1719                         ret = -1;
1720
1721                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1722                                              params->ssid_len) < 0)
1723                         ret = -1;
1724         } else {
1725                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0)
1726                         ret = -1;
1727                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
1728                                              params->ssid_len) < 0)
1729                         ret = -1;
1730                 os_memset(&mlme, 0, sizeof(mlme));
1731                 mlme.im_op = IEEE80211_MLME_ASSOC;
1732                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1733                 if (set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
1734                                  sizeof(mlme), 1) < 0) {
1735                         wpa_printf(MSG_DEBUG, "%s: SETMLME[ASSOC] failed",
1736                                    __func__);
1737                         ret = -1;
1738                 }
1739         }
1740
1741         return ret;
1742 }
1743
1744 static int
1745 wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg)
1746 {
1747         struct wpa_driver_madwifi_data *drv = priv;
1748         int authmode;
1749
1750         if ((auth_alg & AUTH_ALG_OPEN_SYSTEM) &&
1751             (auth_alg & AUTH_ALG_SHARED_KEY))
1752                 authmode = IEEE80211_AUTH_AUTO;
1753         else if (auth_alg & AUTH_ALG_SHARED_KEY)
1754                 authmode = IEEE80211_AUTH_SHARED;
1755         else
1756                 authmode = IEEE80211_AUTH_OPEN;
1757
1758         return set80211param(drv, IEEE80211_PARAM_AUTHMODE, authmode, 1);
1759 }
1760
1761 static int
1762 wpa_driver_madwifi_scan(void *priv, const u8 *ssid, size_t ssid_len)
1763 {
1764         struct wpa_driver_madwifi_data *drv = priv;
1765         struct iwreq iwr;
1766         int ret = 0;
1767
1768         os_memset(&iwr, 0, sizeof(iwr));
1769         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1770
1771         /* set desired ssid before scan */
1772         /* FIX: scan should not break the current association, so using
1773          * set_ssid may not be the best way of doing this.. */
1774         if (wpa_driver_wext_set_ssid(drv->wext, ssid, ssid_len) < 0)
1775                 ret = -1;
1776
1777         if (ioctl(drv->sock, SIOCSIWSCAN, &iwr) < 0) {
1778                 perror("ioctl[SIOCSIWSCAN]");
1779                 ret = -1;
1780         }
1781
1782         /*
1783          * madwifi delivers a scan complete event so no need to poll, but
1784          * register a backup timeout anyway to make sure that we recover even
1785          * if the driver does not send this event for any reason. This timeout
1786          * will only be used if the event is not delivered (event handler will
1787          * cancel the timeout).
1788          */
1789         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv->wext,
1790                              drv->ctx);
1791         eloop_register_timeout(30, 0, wpa_driver_wext_scan_timeout, drv->wext,
1792                                drv->ctx);
1793
1794         return ret;
1795 }
1796
1797 static int wpa_driver_madwifi_get_bssid(void *priv, u8 *bssid)
1798 {
1799         struct wpa_driver_madwifi_data *drv = priv;
1800         return wpa_driver_wext_get_bssid(drv->wext, bssid);
1801 }
1802
1803
1804 static int wpa_driver_madwifi_get_ssid(void *priv, u8 *ssid)
1805 {
1806         struct wpa_driver_madwifi_data *drv = priv;
1807         return wpa_driver_wext_get_ssid(drv->wext, ssid);
1808 }
1809
1810
1811 static struct wpa_scan_results *
1812 wpa_driver_madwifi_get_scan_results(void *priv)
1813 {
1814         struct wpa_driver_madwifi_data *drv = priv;
1815         return wpa_driver_wext_get_scan_results(drv->wext);
1816 }
1817
1818
1819 static int wpa_driver_madwifi_set_operstate(void *priv, int state)
1820 {
1821         struct wpa_driver_madwifi_data *drv = priv;
1822         return wpa_driver_wext_set_operstate(drv->wext, state);
1823 }
1824
1825
1826 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
1827                                                size_t ies_len)
1828 {
1829         struct ieee80211req_getset_appiebuf *probe_req_ie;
1830         int ret;
1831
1832         probe_req_ie = os_malloc(sizeof(*probe_req_ie) + ies_len);
1833         if (probe_req_ie == NULL)
1834                 return -1;
1835
1836         probe_req_ie->app_frmtype = IEEE80211_APPIE_FRAME_PROBE_REQ;
1837         probe_req_ie->app_buflen = ies_len;
1838         os_memcpy(probe_req_ie->app_buf, ies, ies_len);
1839
1840         ret = set80211priv(priv, IEEE80211_IOCTL_SET_APPIEBUF, probe_req_ie,
1841                            sizeof(struct ieee80211req_getset_appiebuf) +
1842                            ies_len, 1);
1843
1844         os_free(probe_req_ie);
1845
1846         return ret;
1847 }
1848
1849
1850 static void * wpa_driver_madwifi_init(void *ctx, const char *ifname)
1851 {
1852         struct wpa_driver_madwifi_data *drv;
1853
1854         drv = os_zalloc(sizeof(*drv));
1855         if (drv == NULL)
1856                 return NULL;
1857         drv->wext = wpa_driver_wext_init(ctx, ifname);
1858         if (drv->wext == NULL)
1859                 goto fail;
1860
1861         drv->ctx = ctx;
1862         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1863         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1864         if (drv->sock < 0)
1865                 goto fail2;
1866
1867         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0) {
1868                 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1869                            "roaming", __FUNCTION__);
1870                 goto fail3;
1871         }
1872
1873         if (set80211param(drv, IEEE80211_PARAM_WPA, 3, 1) < 0) {
1874                 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support",
1875                            __FUNCTION__);
1876                 goto fail3;
1877         }
1878
1879         return drv;
1880
1881 fail3:
1882         close(drv->sock);
1883 fail2:
1884         wpa_driver_wext_deinit(drv->wext);
1885 fail:
1886         os_free(drv);
1887         return NULL;
1888 }
1889
1890
1891 static void wpa_driver_madwifi_deinit(void *priv)
1892 {
1893         struct wpa_driver_madwifi_data *drv = priv;
1894
1895         if (wpa_driver_madwifi_set_wpa_ie(drv, NULL, 0) < 0) {
1896                 wpa_printf(MSG_DEBUG, "%s: failed to clear WPA IE",
1897                            __FUNCTION__);
1898         }
1899         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0) {
1900                 wpa_printf(MSG_DEBUG, "%s: failed to enable driver-based "
1901                            "roaming", __FUNCTION__);
1902         }
1903         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, 0, 1) < 0) {
1904                 wpa_printf(MSG_DEBUG, "%s: failed to disable forced Privacy "
1905                            "flag", __FUNCTION__);
1906         }
1907         if (set80211param(drv, IEEE80211_PARAM_WPA, 0, 1) < 0) {
1908                 wpa_printf(MSG_DEBUG, "%s: failed to disable WPA",
1909                            __FUNCTION__);
1910         }
1911
1912         wpa_driver_wext_deinit(drv->wext);
1913
1914         close(drv->sock);
1915         os_free(drv);
1916 }
1917
1918 #endif /* HOSTAPD */
1919
1920
1921 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
1922         .name                   = "madwifi",
1923         .desc                   = "MADWIFI 802.11 support (Atheros, etc.)",
1924 #ifdef HOSTAPD
1925         .hapd_init              = madwifi_init,
1926         .hapd_deinit            = madwifi_deinit,
1927         .set_ieee8021x          = madwifi_set_ieee8021x,
1928         .set_privacy            = madwifi_set_privacy,
1929         .hapd_set_key           = madwifi_set_key,
1930         .get_seqnum             = madwifi_get_seqnum,
1931         .flush                  = madwifi_flush,
1932         .set_generic_elem       = madwifi_set_opt_ie,
1933         .sta_set_flags          = madwifi_sta_set_flags,
1934         .read_sta_data          = madwifi_read_sta_driver_data,
1935         .hapd_send_eapol        = madwifi_send_eapol,
1936         .sta_disassoc           = madwifi_sta_disassoc,
1937         .sta_deauth             = madwifi_sta_deauth,
1938         .hapd_set_ssid          = madwifi_set_ssid,
1939         .hapd_get_ssid          = madwifi_get_ssid,
1940         .hapd_set_countermeasures       = madwifi_set_countermeasures,
1941         .sta_clear_stats        = madwifi_sta_clear_stats,
1942         .commit                 = madwifi_commit,
1943         .set_wps_beacon_ie      = madwifi_set_wps_beacon_ie,
1944         .set_wps_probe_resp_ie  = madwifi_set_wps_probe_resp_ie,
1945 #else /* HOSTAPD */
1946         .get_bssid              = wpa_driver_madwifi_get_bssid,
1947         .get_ssid               = wpa_driver_madwifi_get_ssid,
1948         .set_key                = wpa_driver_madwifi_set_key,
1949         .init                   = wpa_driver_madwifi_init,
1950         .deinit                 = wpa_driver_madwifi_deinit,
1951         .set_countermeasures    = wpa_driver_madwifi_set_countermeasures,
1952         .set_drop_unencrypted   = wpa_driver_madwifi_set_drop_unencrypted,
1953         .scan                   = wpa_driver_madwifi_scan,
1954         .get_scan_results2      = wpa_driver_madwifi_get_scan_results,
1955         .deauthenticate         = wpa_driver_madwifi_deauthenticate,
1956         .disassociate           = wpa_driver_madwifi_disassociate,
1957         .associate              = wpa_driver_madwifi_associate,
1958         .set_auth_alg           = wpa_driver_madwifi_set_auth_alg,
1959         .set_operstate          = wpa_driver_madwifi_set_operstate,
1960         .set_probe_req_ie       = wpa_driver_madwifi_set_probe_req_ie,
1961 #endif /* HOSTAPD */
1962 };