wpa_supplicant/wpas_glue.c

   1 /*
   2  * WPA Supplicant - Glue code to setup EAPOL and RSN modules
   3  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "common.h"
  18 #include "eapol_supp/eapol_supp_sm.h"
  19 #include "rsn_supp/wpa.h"
  20 #include "eloop.h"
  21 #include "config.h"
  22 #include "l2_packet/l2_packet.h"
  23 #include "common/wpa_common.h"
  24 #include "wpa_supplicant_i.h"
  25 #include "driver_i.h"
  26 #include "rsn_supp/pmksa_cache.h"
  27 #include "mlme.h"
  28 #include "sme.h"
  29 #include "common/ieee802_11_defs.h"
  30 #include "common/wpa_ctrl.h"
  31 #include "wpas_glue.h"
  32 #include "wps_supplicant.h"
  33 #include "bss.h"
  34 #include "scan.h"
  35
  36
  37 #ifndef CONFIG_NO_CONFIG_BLOBS
  38 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
  39 static void wpa_supplicant_set_config_blob(void *ctx,
  40                                            struct wpa_config_blob *blob)
  41 {
  42         struct wpa_supplicant *wpa_s = ctx;
  43         wpa_config_set_blob(wpa_s->conf, blob);
  44         if (wpa_s->conf->update_config) {
  45                 int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
  46                 if (ret) {
  47                         wpa_printf(MSG_DEBUG, "Failed to update config after "
  48                                    "blob set");
  49                 }
  50         }
  51 }
  52
  53
  54 static const struct wpa_config_blob *
  55 wpa_supplicant_get_config_blob(void *ctx, const char *name)
  56 {
  57         struct wpa_supplicant *wpa_s = ctx;
  58         return wpa_config_get_blob(wpa_s->conf, name);
  59 }
  60 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
  61 #endif /* CONFIG_NO_CONFIG_BLOBS */
  62
  63
  64 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
  65 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
  66                             const void *data, u16 data_len,
  67                             size_t *msg_len, void **data_pos)
  68 {
  69         struct ieee802_1x_hdr *hdr;
  70
  71         *msg_len = sizeof(*hdr) + data_len;
  72         hdr = os_malloc(*msg_len);
  73         if (hdr == NULL)
  74                 return NULL;
  75
  76         hdr->version = wpa_s->conf->eapol_version;
  77         hdr->type = type;
  78         hdr->length = host_to_be16(data_len);
  79
  80         if (data)
  81                 os_memcpy(hdr + 1, data, data_len);
  82         else
  83                 os_memset(hdr + 1, 0, data_len);
  84
  85         if (data_pos)
  86                 *data_pos = hdr + 1;
  87
  88         return (u8 *) hdr;
  89 }
  90
  91
  92 /**
  93  * wpa_ether_send - Send Ethernet frame
  94  * @wpa_s: Pointer to wpa_supplicant data
  95  * @dest: Destination MAC address
  96  * @proto: Ethertype in host byte order
  97  * @buf: Frame payload starting from IEEE 802.1X header
  98  * @len: Frame payload length
  99  * Returns: >=0 on success, <0 on failure
 100  */
 101 static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
 102                           u16 proto, const u8 *buf, size_t len)
 103 {
 104         if (wpa_s->l2) {
 105                 return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
 106         }
 107
 108         return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
 109 }
 110 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
 111
 112
 113 #ifdef IEEE8021X_EAPOL
 114
 115 /**
 116  * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
 117  * @ctx: Pointer to wpa_supplicant data (wpa_s)
 118  * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
 119  * @buf: EAPOL payload (after IEEE 802.1X header)
 120  * @len: EAPOL payload length
 121  * Returns: >=0 on success, <0 on failure
 122  *
 123  * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
 124  * to the current Authenticator.
 125  */
 126 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
 127                                      size_t len)
 128 {
 129         struct wpa_supplicant *wpa_s = ctx;
 130         u8 *msg, *dst, bssid[ETH_ALEN];
 131         size_t msglen;
 132         int res;
 133
 134         /* TODO: could add l2_packet_sendmsg that allows fragments to avoid
 135          * extra copy here */
 136
 137         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
 138             wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
 139                 /* Current SSID is not using IEEE 802.1X/EAP, so drop possible
 140                  * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
 141                  * machines. */
 142                 wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
 143                            "mode (type=%d len=%lu)", type,
 144                            (unsigned long) len);
 145                 return -1;
 146         }
 147
 148         if (pmksa_cache_get_current(wpa_s->wpa) &&
 149             type == IEEE802_1X_TYPE_EAPOL_START) {
 150                 /* Trying to use PMKSA caching - do not send EAPOL-Start frames
 151                  * since they will trigger full EAPOL authentication. */
 152                 wpa_printf(MSG_DEBUG, "RSN: PMKSA caching - do not send "
 153                            "EAPOL-Start");
 154                 return -1;
 155         }
 156
 157         if (is_zero_ether_addr(wpa_s->bssid)) {
 158                 wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
 159                            "EAPOL frame");
 160                 if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
 161                     !is_zero_ether_addr(bssid)) {
 162                         dst = bssid;
 163                         wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
 164                                    " from the driver as the EAPOL destination",
 165                                    MAC2STR(dst));
 166                 } else {
 167                         dst = wpa_s->last_eapol_src;
 168                         wpa_printf(MSG_DEBUG, "Using the source address of the"
 169                                    " last received EAPOL frame " MACSTR " as "
 170                                    "the EAPOL destination",
 171                                    MAC2STR(dst));
 172                 }
 173         } else {
 174                 /* BSSID was already set (from (Re)Assoc event, so use it as
 175                  * the EAPOL destination. */
 176                 dst = wpa_s->bssid;
 177         }
 178
 179         msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
 180         if (msg == NULL)
 181                 return -1;
 182
 183         wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
 184         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
 185         res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
 186         os_free(msg);
 187         return res;
 188 }
 189
 190
 191 /**
 192  * wpa_eapol_set_wep_key - set WEP key for the driver
 193  * @ctx: Pointer to wpa_supplicant data (wpa_s)
 194  * @unicast: 1 = individual unicast key, 0 = broadcast key
 195  * @keyidx: WEP key index (0..3)
 196  * @key: Pointer to key data
 197  * @keylen: Key length in bytes
 198  * Returns: 0 on success or < 0 on error.
 199  */
 200 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
 201                                  const u8 *key, size_t keylen)
 202 {
 203         struct wpa_supplicant *wpa_s = ctx;
 204         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 205                 int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
 206                         WPA_CIPHER_WEP104;
 207                 if (unicast)
 208                         wpa_s->pairwise_cipher = cipher;
 209                 else
 210                         wpa_s->group_cipher = cipher;
 211         }
 212         return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
 213                                unicast ? wpa_s->bssid :
 214                                (u8 *) "\xff\xff\xff\xff\xff\xff",
 215                                keyidx, unicast, (u8 *) "", 0, key, keylen);
 216 }
 217
 218
 219 static void wpa_supplicant_aborted_cached(void *ctx)
 220 {
 221         struct wpa_supplicant *wpa_s = ctx;
 222         wpa_sm_aborted_cached(wpa_s->wpa);
 223 }
 224
 225
 226 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, int success,
 227                                     void *ctx)
 228 {
 229         struct wpa_supplicant *wpa_s = ctx;
 230         int res, pmk_len;
 231         u8 pmk[PMK_LEN];
 232
 233         wpa_printf(MSG_DEBUG, "EAPOL authentication completed %ssuccessfully",
 234                    success ? "" : "un");
 235
 236         if (wpas_wps_eapol_cb(wpa_s) > 0)
 237                 return;
 238
 239         if (!success) {
 240                 /*
 241                  * Make sure we do not get stuck here waiting for long EAPOL
 242                  * timeout if the AP does not disconnect in case of
 243                  * authentication failure.
 244                  */
 245                 wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
 246         }
 247
 248         if (!success || !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
 249                 return;
 250
 251         if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
 252                 return;
 253
 254         wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
 255                    "handshake");
 256
 257         pmk_len = PMK_LEN;
 258         res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
 259         if (res) {
 260                 /*
 261                  * EAP-LEAP is an exception from other EAP methods: it
 262                  * uses only 16-byte PMK.
 263                  */
 264                 res = eapol_sm_get_key(eapol, pmk, 16);
 265                 pmk_len = 16;
 266         }
 267
 268         if (res) {
 269                 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
 270                            "machines");
 271                 return;
 272         }
 273
 274         if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
 275                             pmk_len)) {
 276                 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
 277         }
 278
 279         wpa_supplicant_cancel_scan(wpa_s);
 280         wpa_supplicant_cancel_auth_timeout(wpa_s);
 281         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 282
 283 }
 284
 285
 286 static void wpa_supplicant_notify_eapol_done(void *ctx)
 287 {
 288         struct wpa_supplicant *wpa_s = ctx;
 289         wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
 290         if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
 291                 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
 292         } else {
 293                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 294                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 295         }
 296 }
 297
 298 #endif /* IEEE8021X_EAPOL */
 299
 300
 301 #ifndef CONFIG_NO_WPA
 302
 303 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
 304 {
 305         int ret = 0;
 306         struct wpa_bss *curr = NULL, *bss;
 307         struct wpa_ssid *ssid = wpa_s->current_ssid;
 308         const u8 *ie;
 309
 310         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 311                 if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 312                         continue;
 313                 if (ssid == NULL ||
 314                     ((bss->ssid_len == ssid->ssid_len &&
 315                       os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
 316                      ssid->ssid_len == 0)) {
 317                         curr = bss;
 318                         break;
 319                 }
 320         }
 321
 322         if (curr) {
 323                 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
 324                 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 325                         ret = -1;
 326
 327                 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
 328                 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 329                         ret = -1;
 330         } else {
 331                 ret = -1;
 332         }
 333
 334         return ret;
 335 }
 336
 337
 338 static int wpa_supplicant_get_beacon_ie(void *ctx)
 339 {
 340         struct wpa_supplicant *wpa_s = ctx;
 341         if (wpa_get_beacon_ie(wpa_s) == 0) {
 342                 return 0;
 343         }
 344
 345         /* No WPA/RSN IE found in the cached scan results. Try to get updated
 346          * scan results from the driver. */
 347         if (wpa_supplicant_update_scan_results(wpa_s) < 0)
 348                 return -1;
 349
 350         return wpa_get_beacon_ie(wpa_s);
 351 }
 352
 353
 354 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
 355                              const void *data, u16 data_len,
 356                              size_t *msg_len, void **data_pos)
 357 {
 358         return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
 359 }
 360
 361
 362 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
 363                            const u8 *buf, size_t len)
 364 {
 365         return wpa_ether_send(wpa_s, dest, proto, buf, len);
 366 }
 367
 368
 369 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
 370 {
 371         wpa_supplicant_cancel_auth_timeout(wpa_s);
 372 }
 373
 374
 375 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
 376 {
 377         wpa_supplicant_set_state(wpa_s, state);
 378 }
 379
 380
 381 /**
 382  * wpa_supplicant_get_state - Get the connection state
 383  * @wpa_s: Pointer to wpa_supplicant data
 384  * Returns: The current connection state (WPA_*)
 385  */
 386 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
 387 {
 388         return wpa_s->wpa_state;
 389 }
 390
 391
 392 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
 393 {
 394         return wpa_supplicant_get_state(wpa_s);
 395 }
 396
 397
 398 static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
 399 {
 400         wpa_supplicant_disassociate(wpa_s, reason_code);
 401         /* Schedule a scan to make sure we continue looking for networks */
 402         wpa_supplicant_req_scan(wpa_s, 5, 0);
 403 }
 404
 405
 406 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
 407 {
 408         wpa_supplicant_deauthenticate(wpa_s, reason_code);
 409         /* Schedule a scan to make sure we continue looking for networks */
 410         wpa_supplicant_req_scan(wpa_s, 5, 0);
 411 }
 412
 413
 414 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
 415 {
 416         return wpa_supplicant_get_ssid(wpa_s);
 417 }
 418
 419
 420 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
 421 {
 422         struct wpa_supplicant *wpa_s = ctx;
 423         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) {
 424                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
 425                 return 0;
 426         }
 427         return wpa_drv_get_bssid(wpa_s, bssid);
 428 }
 429
 430
 431 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
 432                                   const u8 *addr, int key_idx, int set_tx,
 433                                   const u8 *seq, size_t seq_len,
 434                                   const u8 *key, size_t key_len)
 435 {
 436         struct wpa_supplicant *wpa_s = _wpa_s;
 437         if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
 438                 /* Clear the MIC error counter when setting a new PTK. */
 439                 wpa_s->mic_errors_seen = 0;
 440         }
 441         return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
 442                                key, key_len);
 443 }
 444
 445
 446 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
 447                                              int protection_type,
 448                                              int key_type)
 449 {
 450         return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
 451                                           key_type);
 452 }
 453
 454
 455 static int wpa_supplicant_add_pmkid(void *wpa_s,
 456                                     const u8 *bssid, const u8 *pmkid)
 457 {
 458         return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
 459 }
 460
 461
 462 static int wpa_supplicant_remove_pmkid(void *wpa_s,
 463                                        const u8 *bssid, const u8 *pmkid)
 464 {
 465         return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
 466 }
 467
 468
 469 #ifdef CONFIG_IEEE80211R
 470 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
 471                                         const u8 *ies, size_t ies_len)
 472 {
 473         struct wpa_supplicant *wpa_s = ctx;
 474         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
 475                 return ieee80211_sta_update_ft_ies(wpa_s, md, ies, ies_len);
 476         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
 477                 return sme_update_ft_ies(wpa_s, md, ies, ies_len);
 478         return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
 479 }
 480
 481
 482 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
 483                                          const u8 *target_ap,
 484                                          const u8 *ies, size_t ies_len)
 485 {
 486         struct wpa_supplicant *wpa_s = ctx;
 487         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
 488                 return ieee80211_sta_send_ft_action(wpa_s, action, target_ap,
 489                                                     ies, ies_len);
 490         return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len);
 491 }
 492 #endif /* CONFIG_IEEE80211R */
 493
 494 #endif /* CONFIG_NO_WPA */
 495
 496
 497 #ifdef IEEE8021X_EAPOL
 498 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
 499 static void wpa_supplicant_eap_param_needed(void *ctx, const char *field,
 500                                             const char *txt)
 501 {
 502         struct wpa_supplicant *wpa_s = ctx;
 503         struct wpa_ssid *ssid = wpa_s->current_ssid;
 504         char *buf;
 505         size_t buflen;
 506         int len;
 507
 508         if (ssid == NULL)
 509                 return;
 510
 511         buflen = 100 + os_strlen(txt) + ssid->ssid_len;
 512         buf = os_malloc(buflen);
 513         if (buf == NULL)
 514                 return;
 515         len = os_snprintf(buf, buflen,
 516                           WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
 517                           field, ssid->id, txt);
 518         if (len < 0 || (size_t) len >= buflen) {
 519                 os_free(buf);
 520                 return;
 521         }
 522         if (ssid->ssid && buflen > len + ssid->ssid_len) {
 523                 os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
 524                 len += ssid->ssid_len;
 525                 buf[len] = '\0';
 526         }
 527         buf[buflen - 1] = '\0';
 528         wpa_msg(wpa_s, MSG_INFO, "%s", buf);
 529         os_free(buf);
 530 }
 531 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 532 #define wpa_supplicant_eap_param_needed NULL
 533 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 534
 535
 536 static void wpa_supplicant_port_cb(void *ctx, int authorized)
 537 {
 538         struct wpa_supplicant *wpa_s = ctx;
 539         wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
 540                    authorized ? "Authorized" : "Unauthorized");
 541         wpa_drv_set_supp_port(wpa_s, authorized);
 542 }
 543 #endif /* IEEE8021X_EAPOL */
 544
 545
 546 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
 547 {
 548 #ifdef IEEE8021X_EAPOL
 549         struct eapol_ctx *ctx;
 550         ctx = os_zalloc(sizeof(*ctx));
 551         if (ctx == NULL) {
 552                 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
 553                 return -1;
 554         }
 555
 556         ctx->ctx = wpa_s;
 557         ctx->msg_ctx = wpa_s;
 558         ctx->eapol_send_ctx = wpa_s;
 559         ctx->preauth = 0;
 560         ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
 561         ctx->eapol_send = wpa_supplicant_eapol_send;
 562         ctx->set_wep_key = wpa_eapol_set_wep_key;
 563         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 564         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 565         ctx->aborted_cached = wpa_supplicant_aborted_cached;
 566         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 567         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 568         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 569         ctx->wps = wpa_s->wps;
 570         ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
 571         ctx->port_cb = wpa_supplicant_port_cb;
 572         ctx->cb = wpa_supplicant_eapol_cb;
 573         ctx->cb_ctx = wpa_s;
 574         wpa_s->eapol = eapol_sm_init(ctx);
 575         if (wpa_s->eapol == NULL) {
 576                 os_free(ctx);
 577                 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
 578                            "machines.");
 579                 return -1;
 580         }
 581 #endif /* IEEE8021X_EAPOL */
 582
 583         return 0;
 584 }
 585
 586
 587 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
 588 {
 589 #ifndef CONFIG_NO_WPA
 590         struct wpa_sm_ctx *ctx;
 591         ctx = os_zalloc(sizeof(*ctx));
 592         if (ctx == NULL) {
 593                 wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
 594                 return -1;
 595         }
 596
 597         ctx->ctx = wpa_s;
 598         ctx->msg_ctx = wpa_s;
 599         ctx->set_state = _wpa_supplicant_set_state;
 600         ctx->get_state = _wpa_supplicant_get_state;
 601         ctx->deauthenticate = _wpa_supplicant_deauthenticate;
 602         ctx->disassociate = _wpa_supplicant_disassociate;
 603         ctx->set_key = wpa_supplicant_set_key;
 604         ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
 605         ctx->get_bssid = wpa_supplicant_get_bssid;
 606         ctx->ether_send = _wpa_ether_send;
 607         ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
 608         ctx->alloc_eapol = _wpa_alloc_eapol;
 609         ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
 610         ctx->add_pmkid = wpa_supplicant_add_pmkid;
 611         ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
 612 #ifndef CONFIG_NO_CONFIG_BLOBS
 613         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 614         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 615 #endif /* CONFIG_NO_CONFIG_BLOBS */
 616         ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
 617 #ifdef CONFIG_IEEE80211R
 618         ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
 619         ctx->send_ft_action = wpa_supplicant_send_ft_action;
 620 #endif /* CONFIG_IEEE80211R */
 621
 622         wpa_s->wpa = wpa_sm_init(ctx);
 623         if (wpa_s->wpa == NULL) {
 624                 wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
 625                            "machine");
 626                 return -1;
 627         }
 628 #endif /* CONFIG_NO_WPA */
 629
 630         return 0;
 631 }
 632
 633
 634 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
 635                                         struct wpa_ssid *ssid)
 636 {
 637         struct rsn_supp_config conf;
 638         if (ssid) {
 639                 os_memset(&conf, 0, sizeof(conf));
 640                 conf.network_ctx = ssid;
 641                 conf.peerkey_enabled = ssid->peerkey;
 642                 conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
 643 #ifdef IEEE8021X_EAPOL
 644                 conf.eap_workaround = ssid->eap_workaround;
 645                 conf.eap_conf_ctx = &ssid->eap;
 646 #endif /* IEEE8021X_EAPOL */
 647                 conf.ssid = ssid->ssid;
 648                 conf.ssid_len = ssid->ssid_len;
 649                 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
 650         }
 651         wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
 652 }