contrib/hostapd/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) 2004-2005, Jouni Malinen <j@w1.fi>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  *
  15  * Please note that madwifi supports WPA configuration via Linux wireless
  16  * extensions and if the kernel includes support for this, driver_wext.c should
  17  * be used instead of this driver wrapper.
  18  */
  19
  20 #include "includes.h"
  21 #include <sys/ioctl.h>
  22
  23 #include "common.h"
  24 #include "driver.h"
  25 #include "driver_wext.h"
  26 #include "eloop.h"
  27 #include "ieee802_11_defs.h"
  28 #include "wireless_copy.h"
  29
  30 /*
  31  * Avoid conflicts with wpa_supplicant definitions by undefining a definition.
  32  */
  33 #undef WME_OUI_TYPE
  34
  35 #include <include/compat.h>
  36 #include <net80211/ieee80211.h>
  37 #ifdef WME_NUM_AC
  38 /* Assume this is built against BSD branch of madwifi driver. */
  39 #define MADWIFI_BSD
  40 #include <net80211/_ieee80211.h>
  41 #endif /* WME_NUM_AC */
  42 #include <net80211/ieee80211_crypto.h>
  43 #include <net80211/ieee80211_ioctl.h>
  44
  45
  46 #ifdef IEEE80211_IOCTL_SETWMMPARAMS
  47 /* Assume this is built against madwifi-ng */
  48 #define MADWIFI_NG
  49 #endif /* IEEE80211_IOCTL_SETWMMPARAMS */
  50
  51 struct wpa_driver_madwifi_data {
  52         void *wext; /* private data for driver_wext */
  53         void *ctx;
  54         char ifname[IFNAMSIZ + 1];
  55         int sock;
  56 };
  57
  58 static int
  59 set80211priv(struct wpa_driver_madwifi_data *drv, int op, void *data, int len,
  60              int show_err)
  61 {
  62         struct iwreq iwr;
  63
  64         os_memset(&iwr, 0, sizeof(iwr));
  65         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
  66         if (len < IFNAMSIZ &&
  67             op != IEEE80211_IOCTL_SET_APPIEBUF) {
  68                 /*
  69                  * Argument data fits inline; put it there.
  70                  */
  71                 os_memcpy(iwr.u.name, data, len);
  72         } else {
  73                 /*
  74                  * Argument data too big for inline transfer; setup a
  75                  * parameter block instead; the kernel will transfer
  76                  * the data for the driver.
  77                  */
  78                 iwr.u.data.pointer = data;
  79                 iwr.u.data.length = len;
  80         }
  81
  82         if (ioctl(drv->sock, op, &iwr) < 0) {
  83                 if (show_err) {
  84 #ifdef MADWIFI_NG
  85                         int first = IEEE80211_IOCTL_SETPARAM;
  86                         int last = IEEE80211_IOCTL_KICKMAC;
  87                         static const char *opnames[] = {
  88                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
  89                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
  90                                 "ioctl[IEEE80211_IOCTL_SETMODE]",
  91                                 "ioctl[IEEE80211_IOCTL_GETMODE]",
  92                                 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
  93                                 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
  94                                 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
  95                                 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
  96                                 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
  97                                 NULL,
  98                                 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
  99                                 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
 100                                 NULL,
 101                                 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
 102                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 103                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 104                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
 105                                 NULL,
 106                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
 107                                 NULL,
 108                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
 109                                 NULL,
 110                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
 111                                 NULL,
 112                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
 113                                 NULL,
 114                                 "ioctl[IEEE80211_IOCTL_WDSMAC]",
 115                                 NULL,
 116                                 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
 117                                 NULL,
 118                                 "ioctl[IEEE80211_IOCTL_KICKMAC]",
 119                         };
 120 #else /* MADWIFI_NG */
 121                         int first = IEEE80211_IOCTL_SETPARAM;
 122                         int last = IEEE80211_IOCTL_CHANLIST;
 123                         static const char *opnames[] = {
 124                                 "ioctl[IEEE80211_IOCTL_SETPARAM]",
 125                                 "ioctl[IEEE80211_IOCTL_GETPARAM]",
 126                                 "ioctl[IEEE80211_IOCTL_SETKEY]",
 127                                 "ioctl[IEEE80211_IOCTL_GETKEY]",
 128                                 "ioctl[IEEE80211_IOCTL_DELKEY]",
 129                                 NULL,
 130                                 "ioctl[IEEE80211_IOCTL_SETMLME]",
 131                                 NULL,
 132                                 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
 133                                 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
 134                                 "ioctl[IEEE80211_IOCTL_ADDMAC]",
 135                                 NULL,
 136                                 "ioctl[IEEE80211_IOCTL_DELMAC]",
 137                                 NULL,
 138                                 "ioctl[IEEE80211_IOCTL_CHANLIST]",
 139                         };
 140 #endif /* MADWIFI_NG */
 141                         int idx = op - first;
 142                         if (first <= op && op <= last &&
 143                             idx < (int) (sizeof(opnames) / sizeof(opnames[0]))
 144                             && opnames[idx])
 145                                 perror(opnames[idx]);
 146                         else
 147                                 perror("ioctl[unknown???]");
 148                 }
 149                 return -1;
 150         }
 151         return 0;
 152 }
 153
 154 static int
 155 set80211param(struct wpa_driver_madwifi_data *drv, int op, int arg,
 156               int show_err)
 157 {
 158         struct iwreq iwr;
 159
 160         os_memset(&iwr, 0, sizeof(iwr));
 161         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 162         iwr.u.mode = op;
 163         os_memcpy(iwr.u.name+sizeof(u32), &arg, sizeof(arg));
 164
 165         if (ioctl(drv->sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
 166                 if (show_err)
 167                         perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
 168                 return -1;
 169         }
 170         return 0;
 171 }
 172
 173 static int
 174 wpa_driver_madwifi_set_wpa_ie(struct wpa_driver_madwifi_data *drv,
 175                               const u8 *wpa_ie, size_t wpa_ie_len)
 176 {
 177         struct iwreq iwr;
 178
 179         os_memset(&iwr, 0, sizeof(iwr));
 180         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 181         /* NB: SETOPTIE is not fixed-size so must not be inlined */
 182         iwr.u.data.pointer = (void *) wpa_ie;
 183         iwr.u.data.length = wpa_ie_len;
 184
 185         if (ioctl(drv->sock, IEEE80211_IOCTL_SETOPTIE, &iwr) < 0) {
 186                 perror("ioctl[IEEE80211_IOCTL_SETOPTIE]");
 187                 return -1;
 188         }
 189         return 0;
 190 }
 191
 192 static int
 193 wpa_driver_madwifi_del_key(struct wpa_driver_madwifi_data *drv, int key_idx,
 194                            const u8 *addr)
 195 {
 196         struct ieee80211req_del_key wk;
 197
 198         wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __FUNCTION__, key_idx);
 199         os_memset(&wk, 0, sizeof(wk));
 200         wk.idk_keyix = key_idx;
 201         if (addr != NULL)
 202                 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
 203
 204         return set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk), 1);
 205 }
 206
 207 static int
 208 wpa_driver_madwifi_set_key(void *priv, wpa_alg alg,
 209                            const u8 *addr, int key_idx, int set_tx,
 210                            const u8 *seq, size_t seq_len,
 211                            const u8 *key, size_t key_len)
 212 {
 213         struct wpa_driver_madwifi_data *drv = priv;
 214         struct ieee80211req_key wk;
 215         char *alg_name;
 216         u_int8_t cipher;
 217
 218         if (alg == WPA_ALG_NONE)
 219                 return wpa_driver_madwifi_del_key(drv, key_idx, addr);
 220
 221         switch (alg) {
 222         case WPA_ALG_WEP:
 223                 if (addr == NULL || os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
 224                                               ETH_ALEN) == 0) {
 225                         /*
 226                          * madwifi did not seem to like static WEP key
 227                          * configuration with IEEE80211_IOCTL_SETKEY, so use
 228                          * Linux wireless extensions ioctl for this.
 229                          */
 230                         return wpa_driver_wext_set_key(drv->wext, alg, addr,
 231                                                        key_idx, set_tx,
 232                                                        seq, seq_len,
 233                                                        key, key_len);
 234                 }
 235                 alg_name = "WEP";
 236                 cipher = IEEE80211_CIPHER_WEP;
 237                 break;
 238         case WPA_ALG_TKIP:
 239                 alg_name = "TKIP";
 240                 cipher = IEEE80211_CIPHER_TKIP;
 241                 break;
 242         case WPA_ALG_CCMP:
 243                 alg_name = "CCMP";
 244                 cipher = IEEE80211_CIPHER_AES_CCM;
 245                 break;
 246         default:
 247                 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
 248                         __FUNCTION__, alg);
 249                 return -1;
 250         }
 251
 252         wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
 253                    "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
 254                    (unsigned long) seq_len, (unsigned long) key_len);
 255
 256         if (seq_len > sizeof(u_int64_t)) {
 257                 wpa_printf(MSG_DEBUG, "%s: seq_len %lu too big",
 258                            __FUNCTION__, (unsigned long) seq_len);
 259                 return -2;
 260         }
 261         if (key_len > sizeof(wk.ik_keydata)) {
 262                 wpa_printf(MSG_DEBUG, "%s: key length %lu too big",
 263                            __FUNCTION__, (unsigned long) key_len);
 264                 return -3;
 265         }
 266
 267         os_memset(&wk, 0, sizeof(wk));
 268         wk.ik_type = cipher;
 269         wk.ik_flags = IEEE80211_KEY_RECV;
 270         if (addr == NULL ||
 271             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
 272                 wk.ik_flags |= IEEE80211_KEY_GROUP;
 273         if (set_tx) {
 274                 wk.ik_flags |= IEEE80211_KEY_XMIT | IEEE80211_KEY_DEFAULT;
 275                 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
 276         } else
 277                 os_memset(wk.ik_macaddr, 0, IEEE80211_ADDR_LEN);
 278         wk.ik_keyix = key_idx;
 279         wk.ik_keylen = key_len;
 280 #ifdef WORDS_BIGENDIAN
 281 #define WPA_KEY_RSC_LEN 8
 282         {
 283                 size_t i;
 284                 u8 tmp[WPA_KEY_RSC_LEN];
 285                 os_memset(tmp, 0, sizeof(tmp));
 286                 for (i = 0; i < seq_len; i++)
 287                         tmp[WPA_KEY_RSC_LEN - i - 1] = seq[i];
 288                 os_memcpy(&wk.ik_keyrsc, tmp, WPA_KEY_RSC_LEN);
 289         }
 290 #else /* WORDS_BIGENDIAN */
 291         os_memcpy(&wk.ik_keyrsc, seq, seq_len);
 292 #endif /* WORDS_BIGENDIAN */
 293         os_memcpy(wk.ik_keydata, key, key_len);
 294
 295         return set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk), 1);
 296 }
 297
 298 static int
 299 wpa_driver_madwifi_set_countermeasures(void *priv, int enabled)
 300 {
 301         struct wpa_driver_madwifi_data *drv = priv;
 302         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
 303         return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled, 1);
 304 }
 305
 306
 307 static int
 308 wpa_driver_madwifi_set_drop_unencrypted(void *priv, int enabled)
 309 {
 310         struct wpa_driver_madwifi_data *drv = priv;
 311         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
 312         return set80211param(drv, IEEE80211_PARAM_DROPUNENCRYPTED, enabled, 1);
 313 }
 314
 315 static int
 316 wpa_driver_madwifi_deauthenticate(void *priv, const u8 *addr, int reason_code)
 317 {
 318         struct wpa_driver_madwifi_data *drv = priv;
 319         struct ieee80211req_mlme mlme;
 320
 321         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
 322         mlme.im_op = IEEE80211_MLME_DEAUTH;
 323         mlme.im_reason = reason_code;
 324         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 325         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
 326 }
 327
 328 static int
 329 wpa_driver_madwifi_disassociate(void *priv, const u8 *addr, int reason_code)
 330 {
 331         struct wpa_driver_madwifi_data *drv = priv;
 332         struct ieee80211req_mlme mlme;
 333
 334         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
 335         mlme.im_op = IEEE80211_MLME_DISASSOC;
 336         mlme.im_reason = reason_code;
 337         os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
 338         return set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme), 1);
 339 }
 340
 341 static int
 342 wpa_driver_madwifi_associate(void *priv,
 343                              struct wpa_driver_associate_params *params)
 344 {
 345         struct wpa_driver_madwifi_data *drv = priv;
 346         struct ieee80211req_mlme mlme;
 347         int ret = 0, privacy = 1;
 348
 349         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
 350
 351         /*
 352          * NB: Don't need to set the freq or cipher-related state as
 353          *     this is implied by the bssid which is used to locate
 354          *     the scanned node state which holds it.  The ssid is
 355          *     needed to disambiguate an AP that broadcasts multiple
 356          *     ssid's but uses the same bssid.
 357          */
 358         /* XXX error handling is wrong but unclear what to do... */
 359         if (wpa_driver_madwifi_set_wpa_ie(drv, params->wpa_ie,
 360                                           params->wpa_ie_len) < 0)
 361                 ret = -1;
 362
 363         if (params->pairwise_suite == CIPHER_NONE &&
 364             params->group_suite == CIPHER_NONE &&
 365             params->key_mgmt_suite == KEY_MGMT_NONE &&
 366             params->wpa_ie_len == 0)
 367                 privacy = 0;
 368
 369         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, privacy, 1) < 0)
 370                 ret = -1;
 371
 372         if (params->wpa_ie_len &&
 373             set80211param(drv, IEEE80211_PARAM_WPA,
 374                           params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1, 1) < 0)
 375                 ret = -1;
 376
 377         if (params->bssid == NULL) {
 378                 /* ap_scan=2 mode - driver takes care of AP selection and
 379                  * roaming */
 380                 /* FIX: this does not seem to work; would probably need to
 381                  * change something in the driver */
 382                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0)
 383                         ret = -1;
 384
 385                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
 386                                              params->ssid_len) < 0)
 387                         ret = -1;
 388         } else {
 389                 if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0)
 390                         ret = -1;
 391                 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
 392                                              params->ssid_len) < 0)
 393                         ret = -1;
 394                 os_memset(&mlme, 0, sizeof(mlme));
 395                 mlme.im_op = IEEE80211_MLME_ASSOC;
 396                 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
 397                 if (set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
 398                                  sizeof(mlme), 1) < 0) {
 399                         wpa_printf(MSG_DEBUG, "%s: SETMLME[ASSOC] failed",
 400                                    __func__);
 401                         ret = -1;
 402                 }
 403         }
 404
 405         return ret;
 406 }
 407
 408 static int
 409 wpa_driver_madwifi_set_auth_alg(void *priv, int auth_alg)
 410 {
 411         struct wpa_driver_madwifi_data *drv = priv;
 412         int authmode;
 413
 414         if ((auth_alg & AUTH_ALG_OPEN_SYSTEM) &&
 415             (auth_alg & AUTH_ALG_SHARED_KEY))
 416                 authmode = IEEE80211_AUTH_AUTO;
 417         else if (auth_alg & AUTH_ALG_SHARED_KEY)
 418                 authmode = IEEE80211_AUTH_SHARED;
 419         else
 420                 authmode = IEEE80211_AUTH_OPEN;
 421
 422         return set80211param(drv, IEEE80211_PARAM_AUTHMODE, authmode, 1);
 423 }
 424
 425 static int
 426 wpa_driver_madwifi_scan(void *priv, const u8 *ssid, size_t ssid_len)
 427 {
 428         struct wpa_driver_madwifi_data *drv = priv;
 429         struct iwreq iwr;
 430         int ret = 0;
 431
 432         os_memset(&iwr, 0, sizeof(iwr));
 433         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 434
 435         /* set desired ssid before scan */
 436         /* FIX: scan should not break the current association, so using
 437          * set_ssid may not be the best way of doing this.. */
 438         if (wpa_driver_wext_set_ssid(drv->wext, ssid, ssid_len) < 0)
 439                 ret = -1;
 440
 441         if (ioctl(drv->sock, SIOCSIWSCAN, &iwr) < 0) {
 442                 perror("ioctl[SIOCSIWSCAN]");
 443                 ret = -1;
 444         }
 445
 446         /*
 447          * madwifi delivers a scan complete event so no need to poll, but
 448          * register a backup timeout anyway to make sure that we recover even
 449          * if the driver does not send this event for any reason. This timeout
 450          * will only be used if the event is not delivered (event handler will
 451          * cancel the timeout).
 452          */
 453         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv->wext,
 454                              drv->ctx);
 455         eloop_register_timeout(30, 0, wpa_driver_wext_scan_timeout, drv->wext,
 456                                drv->ctx);
 457
 458         return ret;
 459 }
 460
 461 static int wpa_driver_madwifi_get_bssid(void *priv, u8 *bssid)
 462 {
 463         struct wpa_driver_madwifi_data *drv = priv;
 464         return wpa_driver_wext_get_bssid(drv->wext, bssid);
 465 }
 466
 467
 468 static int wpa_driver_madwifi_get_ssid(void *priv, u8 *ssid)
 469 {
 470         struct wpa_driver_madwifi_data *drv = priv;
 471         return wpa_driver_wext_get_ssid(drv->wext, ssid);
 472 }
 473
 474
 475 static struct wpa_scan_results *
 476 wpa_driver_madwifi_get_scan_results(void *priv)
 477 {
 478         struct wpa_driver_madwifi_data *drv = priv;
 479         return wpa_driver_wext_get_scan_results(drv->wext);
 480 }
 481
 482
 483 static int wpa_driver_madwifi_set_operstate(void *priv, int state)
 484 {
 485         struct wpa_driver_madwifi_data *drv = priv;
 486         return wpa_driver_wext_set_operstate(drv->wext, state);
 487 }
 488
 489
 490 static int wpa_driver_madwifi_set_probe_req_ie(void *priv, const u8 *ies,
 491                                                size_t ies_len)
 492 {
 493         struct ieee80211req_getset_appiebuf *probe_req_ie;
 494         int ret;
 495
 496         probe_req_ie = os_malloc(sizeof(*probe_req_ie) + ies_len);
 497         if (probe_req_ie == NULL)
 498                 return -1;
 499
 500         probe_req_ie->app_frmtype = IEEE80211_APPIE_FRAME_PROBE_REQ;
 501         probe_req_ie->app_buflen = ies_len;
 502         os_memcpy(probe_req_ie->app_buf, ies, ies_len);
 503
 504         ret = set80211priv(priv, IEEE80211_IOCTL_SET_APPIEBUF, probe_req_ie,
 505                            sizeof(struct ieee80211req_getset_appiebuf) +
 506                            ies_len, 1);
 507
 508         os_free(probe_req_ie);
 509
 510         return ret;
 511 }
 512
 513
 514 static void * wpa_driver_madwifi_init(void *ctx, const char *ifname)
 515 {
 516         struct wpa_driver_madwifi_data *drv;
 517
 518         drv = os_zalloc(sizeof(*drv));
 519         if (drv == NULL)
 520                 return NULL;
 521         drv->wext = wpa_driver_wext_init(ctx, ifname);
 522         if (drv->wext == NULL)
 523                 goto fail;
 524
 525         drv->ctx = ctx;
 526         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
 527         drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
 528         if (drv->sock < 0)
 529                 goto fail2;
 530
 531         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 2, 1) < 0) {
 532                 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
 533                            "roaming", __FUNCTION__);
 534                 goto fail3;
 535         }
 536
 537         if (set80211param(drv, IEEE80211_PARAM_WPA, 3, 1) < 0) {
 538                 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support",
 539                            __FUNCTION__);
 540                 goto fail3;
 541         }
 542
 543         return drv;
 544
 545 fail3:
 546         close(drv->sock);
 547 fail2:
 548         wpa_driver_wext_deinit(drv->wext);
 549 fail:
 550         os_free(drv);
 551         return NULL;
 552 }
 553
 554
 555 static void wpa_driver_madwifi_deinit(void *priv)
 556 {
 557         struct wpa_driver_madwifi_data *drv = priv;
 558
 559         if (wpa_driver_madwifi_set_wpa_ie(drv, NULL, 0) < 0) {
 560                 wpa_printf(MSG_DEBUG, "%s: failed to clear WPA IE",
 561                            __FUNCTION__);
 562         }
 563         if (set80211param(drv, IEEE80211_PARAM_ROAMING, 0, 1) < 0) {
 564                 wpa_printf(MSG_DEBUG, "%s: failed to enable driver-based "
 565                            "roaming", __FUNCTION__);
 566         }
 567         if (set80211param(drv, IEEE80211_PARAM_PRIVACY, 0, 1) < 0) {
 568                 wpa_printf(MSG_DEBUG, "%s: failed to disable forced Privacy "
 569                            "flag", __FUNCTION__);
 570         }
 571         if (set80211param(drv, IEEE80211_PARAM_WPA, 0, 1) < 0) {
 572                 wpa_printf(MSG_DEBUG, "%s: failed to disable WPA",
 573                            __FUNCTION__);
 574         }
 575
 576         wpa_driver_wext_deinit(drv->wext);
 577
 578         close(drv->sock);
 579         os_free(drv);
 580 }
 581
 582
 583 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
 584         .name                   = "madwifi",
 585         .desc                   = "MADWIFI 802.11 support (Atheros, etc.)",
 586         .get_bssid              = wpa_driver_madwifi_get_bssid,
 587         .get_ssid               = wpa_driver_madwifi_get_ssid,
 588         .set_key                = wpa_driver_madwifi_set_key,
 589         .init                   = wpa_driver_madwifi_init,
 590         .deinit                 = wpa_driver_madwifi_deinit,
 591         .set_countermeasures    = wpa_driver_madwifi_set_countermeasures,
 592         .set_drop_unencrypted   = wpa_driver_madwifi_set_drop_unencrypted,
 593         .scan                   = wpa_driver_madwifi_scan,
 594         .get_scan_results2      = wpa_driver_madwifi_get_scan_results,
 595         .deauthenticate         = wpa_driver_madwifi_deauthenticate,
 596         .disassociate           = wpa_driver_madwifi_disassociate,
 597         .associate              = wpa_driver_madwifi_associate,
 598         .set_auth_alg           = wpa_driver_madwifi_set_auth_alg,
 599         .set_operstate          = wpa_driver_madwifi_set_operstate,
 600         .set_probe_req_ie       = wpa_driver_madwifi_set_probe_req_ie,
 601 };