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 "sme.h"
  28 #include "common/ieee802_11_defs.h"
  29 #include "common/wpa_ctrl.h"
  30 #include "wpas_glue.h"
  31 #include "wps_supplicant.h"
  32 #include "bss.h"
  33 #include "scan.h"
  34 #include "notify.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 : NULL,
 214                                keyidx, unicast, NULL, 0, key, keylen);
 215 }
 216
 217
 218 static void wpa_supplicant_aborted_cached(void *ctx)
 219 {
 220         struct wpa_supplicant *wpa_s = ctx;
 221         wpa_sm_aborted_cached(wpa_s->wpa);
 222 }
 223
 224
 225 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, int success,
 226                                     void *ctx)
 227 {
 228         struct wpa_supplicant *wpa_s = ctx;
 229         int res, pmk_len;
 230         u8 pmk[PMK_LEN];
 231
 232         wpa_printf(MSG_DEBUG, "EAPOL authentication completed %ssuccessfully",
 233                    success ? "" : "un");
 234
 235         if (wpas_wps_eapol_cb(wpa_s) > 0)
 236                 return;
 237
 238         if (!success) {
 239                 /*
 240                  * Make sure we do not get stuck here waiting for long EAPOL
 241                  * timeout if the AP does not disconnect in case of
 242                  * authentication failure.
 243                  */
 244                 wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
 245         }
 246
 247         if (!success || !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
 248                 return;
 249
 250         if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
 251                 return;
 252
 253         wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
 254                    "handshake");
 255
 256         pmk_len = PMK_LEN;
 257         if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
 258 #ifdef CONFIG_IEEE80211R
 259                 u8 buf[2 * PMK_LEN];
 260                 wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
 261                            "driver-based 4-way hs and FT");
 262                 res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
 263                 if (res == 0) {
 264                         os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
 265                         os_memset(buf, 0, sizeof(buf));
 266                 }
 267 #else /* CONFIG_IEEE80211R */
 268                 res = -1;
 269 #endif /* CONFIG_IEEE80211R */
 270         } else {
 271                 res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
 272                 if (res) {
 273                         /*
 274                          * EAP-LEAP is an exception from other EAP methods: it
 275                          * uses only 16-byte PMK.
 276                          */
 277                         res = eapol_sm_get_key(eapol, pmk, 16);
 278                         pmk_len = 16;
 279                 }
 280         }
 281
 282         if (res) {
 283                 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
 284                            "machines");
 285                 return;
 286         }
 287
 288         wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
 289                         "handshake", pmk, pmk_len);
 290
 291         if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
 292                             pmk_len)) {
 293                 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
 294         }
 295
 296         wpa_supplicant_cancel_scan(wpa_s);
 297         wpa_supplicant_cancel_auth_timeout(wpa_s);
 298         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 299
 300 }
 301
 302
 303 static void wpa_supplicant_notify_eapol_done(void *ctx)
 304 {
 305         struct wpa_supplicant *wpa_s = ctx;
 306         wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
 307         if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
 308                 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
 309         } else {
 310                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 311                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 312         }
 313 }
 314
 315 #endif /* IEEE8021X_EAPOL */
 316
 317
 318 #ifndef CONFIG_NO_WPA
 319
 320 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
 321 {
 322         int ret = 0;
 323         struct wpa_bss *curr = NULL, *bss;
 324         struct wpa_ssid *ssid = wpa_s->current_ssid;
 325         const u8 *ie;
 326
 327         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 328                 if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 329                         continue;
 330                 if (ssid == NULL ||
 331                     ((bss->ssid_len == ssid->ssid_len &&
 332                       os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
 333                      ssid->ssid_len == 0)) {
 334                         curr = bss;
 335                         break;
 336                 }
 337         }
 338
 339         if (curr) {
 340                 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
 341                 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 342                         ret = -1;
 343
 344                 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
 345                 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 346                         ret = -1;
 347         } else {
 348                 ret = -1;
 349         }
 350
 351         return ret;
 352 }
 353
 354
 355 static int wpa_supplicant_get_beacon_ie(void *ctx)
 356 {
 357         struct wpa_supplicant *wpa_s = ctx;
 358         if (wpa_get_beacon_ie(wpa_s) == 0) {
 359                 return 0;
 360         }
 361
 362         /* No WPA/RSN IE found in the cached scan results. Try to get updated
 363          * scan results from the driver. */
 364         if (wpa_supplicant_update_scan_results(wpa_s) < 0)
 365                 return -1;
 366
 367         return wpa_get_beacon_ie(wpa_s);
 368 }
 369
 370
 371 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
 372                              const void *data, u16 data_len,
 373                              size_t *msg_len, void **data_pos)
 374 {
 375         return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
 376 }
 377
 378
 379 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
 380                            const u8 *buf, size_t len)
 381 {
 382         return wpa_ether_send(wpa_s, dest, proto, buf, len);
 383 }
 384
 385
 386 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
 387 {
 388         wpa_supplicant_cancel_auth_timeout(wpa_s);
 389 }
 390
 391
 392 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
 393 {
 394         wpa_supplicant_set_state(wpa_s, state);
 395 }
 396
 397
 398 /**
 399  * wpa_supplicant_get_state - Get the connection state
 400  * @wpa_s: Pointer to wpa_supplicant data
 401  * Returns: The current connection state (WPA_*)
 402  */
 403 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
 404 {
 405         return wpa_s->wpa_state;
 406 }
 407
 408
 409 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
 410 {
 411         return wpa_supplicant_get_state(wpa_s);
 412 }
 413
 414
 415 static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
 416 {
 417         wpa_supplicant_disassociate(wpa_s, reason_code);
 418         /* Schedule a scan to make sure we continue looking for networks */
 419         wpa_supplicant_req_scan(wpa_s, 5, 0);
 420 }
 421
 422
 423 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
 424 {
 425         wpa_supplicant_deauthenticate(wpa_s, reason_code);
 426         /* Schedule a scan to make sure we continue looking for networks */
 427         wpa_supplicant_req_scan(wpa_s, 5, 0);
 428 }
 429
 430
 431 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
 432 {
 433         return wpa_supplicant_get_ssid(wpa_s);
 434 }
 435
 436
 437 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
 438 {
 439         struct wpa_supplicant *wpa_s = ctx;
 440         return wpa_drv_get_bssid(wpa_s, bssid);
 441 }
 442
 443
 444 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
 445                                   const u8 *addr, int key_idx, int set_tx,
 446                                   const u8 *seq, size_t seq_len,
 447                                   const u8 *key, size_t key_len)
 448 {
 449         struct wpa_supplicant *wpa_s = _wpa_s;
 450         if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
 451                 /* Clear the MIC error counter when setting a new PTK. */
 452                 wpa_s->mic_errors_seen = 0;
 453         }
 454         return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
 455                                key, key_len);
 456 }
 457
 458
 459 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
 460                                              int protection_type,
 461                                              int key_type)
 462 {
 463         return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
 464                                           key_type);
 465 }
 466
 467
 468 static int wpa_supplicant_add_pmkid(void *wpa_s,
 469                                     const u8 *bssid, const u8 *pmkid)
 470 {
 471         return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
 472 }
 473
 474
 475 static int wpa_supplicant_remove_pmkid(void *wpa_s,
 476                                        const u8 *bssid, const u8 *pmkid)
 477 {
 478         return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
 479 }
 480
 481
 482 #ifdef CONFIG_IEEE80211R
 483 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
 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_SME)
 488                 return sme_update_ft_ies(wpa_s, md, ies, ies_len);
 489         return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
 490 }
 491
 492
 493 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
 494                                          const u8 *target_ap,
 495                                          const u8 *ies, size_t ies_len)
 496 {
 497         struct wpa_supplicant *wpa_s = ctx;
 498         return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len);
 499 }
 500
 501
 502 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
 503 {
 504         struct wpa_supplicant *wpa_s = ctx;
 505         struct wpa_driver_auth_params params;
 506         struct wpa_bss *bss;
 507
 508         bss = wpa_bss_get_bssid(wpa_s, target_ap);
 509         if (bss == NULL)
 510                 return -1;
 511
 512         os_memset(&params, 0, sizeof(params));
 513         params.bssid = target_ap;
 514         params.freq = bss->freq;
 515         params.ssid = bss->ssid;
 516         params.ssid_len = bss->ssid_len;
 517         params.auth_alg = WPA_AUTH_ALG_FT;
 518         params.local_state_change = 1;
 519         return wpa_drv_authenticate(wpa_s, &params);
 520 }
 521 #endif /* CONFIG_IEEE80211R */
 522
 523 #endif /* CONFIG_NO_WPA */
 524
 525
 526 #ifdef CONFIG_TDLS
 527
 528 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
 529                                         int *tdls_ext_setup)
 530 {
 531         struct wpa_supplicant *wpa_s = ctx;
 532
 533         *tdls_supported = 0;
 534         *tdls_ext_setup = 0;
 535
 536         if (!wpa_s->drv_capa_known)
 537                 return -1;
 538
 539         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
 540                 *tdls_supported = 1;
 541
 542         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
 543                 *tdls_ext_setup = 1;
 544
 545         return 0;
 546 }
 547
 548
 549 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
 550                                          u8 action_code, u8 dialog_token,
 551                                          u16 status_code, const u8 *buf,
 552                                          size_t len)
 553 {
 554         struct wpa_supplicant *wpa_s = ctx;
 555         return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
 556                                       status_code, buf, len);
 557 }
 558
 559
 560 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
 561 {
 562         struct wpa_supplicant *wpa_s = ctx;
 563         return wpa_drv_tdls_oper(wpa_s, oper, peer);
 564 }
 565
 566
 567 static int wpa_supplicant_tdls_peer_addset(
 568         void *ctx, const u8 *peer, int add, u16 capability,
 569         const u8 *supp_rates, size_t supp_rates_len)
 570 {
 571         struct wpa_supplicant *wpa_s = ctx;
 572         struct hostapd_sta_add_params params;
 573
 574         params.addr = peer;
 575         params.aid = 1;
 576         params.capability = capability;
 577         params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
 578         params.ht_capabilities = NULL;
 579         params.listen_interval = 0;
 580         params.supp_rates = supp_rates;
 581         params.supp_rates_len = supp_rates_len;
 582         params.set = !add;
 583
 584         return wpa_drv_sta_add(wpa_s, &params);
 585 }
 586
 587 #endif /* CONFIG_TDLS */
 588
 589
 590 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
 591                                                const char *default_txt,
 592                                                const char **txt)
 593 {
 594         const char *ret = NULL;
 595
 596         *txt = default_txt;
 597
 598         switch (field) {
 599         case WPA_CTRL_REQ_EAP_IDENTITY:
 600                 *txt = "Identity";
 601                 ret = "IDENTITY";
 602                 break;
 603         case WPA_CTRL_REQ_EAP_PASSWORD:
 604                 *txt = "Password";
 605                 ret = "PASSWORD";
 606                 break;
 607         case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
 608                 *txt = "New Password";
 609                 ret = "NEW_PASSWORD";
 610                 break;
 611         case WPA_CTRL_REQ_EAP_PIN:
 612                 *txt = "PIN";
 613                 ret = "PIN";
 614                 break;
 615         case WPA_CTRL_REQ_EAP_OTP:
 616                 ret = "OTP";
 617                 break;
 618         case WPA_CTRL_REQ_EAP_PASSPHRASE:
 619                 *txt = "Private key passphrase";
 620                 ret = "PASSPHRASE";
 621                 break;
 622         default:
 623                 break;
 624         }
 625
 626         /* txt needs to be something */
 627         if (*txt == NULL) {
 628                 wpa_printf(MSG_WARNING, "No message for request %d", field);
 629                 ret = NULL;
 630         }
 631
 632         return ret;
 633 }
 634
 635 #ifdef IEEE8021X_EAPOL
 636 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
 637 static void wpa_supplicant_eap_param_needed(void *ctx,
 638                                             enum wpa_ctrl_req_type field,
 639                                             const char *default_txt)
 640 {
 641         struct wpa_supplicant *wpa_s = ctx;
 642         struct wpa_ssid *ssid = wpa_s->current_ssid;
 643         const char *field_name, *txt = NULL;
 644         char *buf;
 645         size_t buflen;
 646         int len;
 647
 648         if (ssid == NULL)
 649                 return;
 650
 651         field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
 652                                                        &txt);
 653         if (field_name == NULL) {
 654                 wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
 655                            field);
 656                 return;
 657         }
 658
 659         buflen = 100 + os_strlen(txt) + ssid->ssid_len;
 660         buf = os_malloc(buflen);
 661         if (buf == NULL)
 662                 return;
 663         len = os_snprintf(buf, buflen,
 664                           WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
 665                           field_name, ssid->id, txt);
 666         if (len < 0 || (size_t) len >= buflen) {
 667                 os_free(buf);
 668                 return;
 669         }
 670         if (ssid->ssid && buflen > len + ssid->ssid_len) {
 671                 os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
 672                 len += ssid->ssid_len;
 673                 buf[len] = '\0';
 674         }
 675         buf[buflen - 1] = '\0';
 676         wpa_msg(wpa_s, MSG_INFO, "%s", buf);
 677         os_free(buf);
 678 }
 679 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 680 #define wpa_supplicant_eap_param_needed NULL
 681 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 682
 683
 684 static void wpa_supplicant_port_cb(void *ctx, int authorized)
 685 {
 686         struct wpa_supplicant *wpa_s = ctx;
 687 #ifdef CONFIG_AP
 688         if (wpa_s->ap_iface) {
 689                 wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
 690                            "port status: %s",
 691                            authorized ? "Authorized" : "Unauthorized");
 692                 return;
 693         }
 694 #endif /* CONFIG_AP */
 695         wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
 696                    authorized ? "Authorized" : "Unauthorized");
 697         wpa_drv_set_supp_port(wpa_s, authorized);
 698 }
 699
 700
 701 static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
 702                                    const char *cert_hash,
 703                                    const struct wpabuf *cert)
 704 {
 705         struct wpa_supplicant *wpa_s = ctx;
 706
 707         wpas_notify_certification(wpa_s, depth, subject, cert_hash, cert);
 708 }
 709 #endif /* IEEE8021X_EAPOL */
 710
 711
 712 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
 713 {
 714 #ifdef IEEE8021X_EAPOL
 715         struct eapol_ctx *ctx;
 716         ctx = os_zalloc(sizeof(*ctx));
 717         if (ctx == NULL) {
 718                 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
 719                 return -1;
 720         }
 721
 722         ctx->ctx = wpa_s;
 723         ctx->msg_ctx = wpa_s;
 724         ctx->eapol_send_ctx = wpa_s;
 725         ctx->preauth = 0;
 726         ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
 727         ctx->eapol_send = wpa_supplicant_eapol_send;
 728         ctx->set_wep_key = wpa_eapol_set_wep_key;
 729         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 730         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 731         ctx->aborted_cached = wpa_supplicant_aborted_cached;
 732         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 733         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 734         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 735         ctx->wps = wpa_s->wps;
 736         ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
 737         ctx->port_cb = wpa_supplicant_port_cb;
 738         ctx->cb = wpa_supplicant_eapol_cb;
 739         ctx->cert_cb = wpa_supplicant_cert_cb;
 740         ctx->cb_ctx = wpa_s;
 741         wpa_s->eapol = eapol_sm_init(ctx);
 742         if (wpa_s->eapol == NULL) {
 743                 os_free(ctx);
 744                 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
 745                            "machines.");
 746                 return -1;
 747         }
 748 #endif /* IEEE8021X_EAPOL */
 749
 750         return 0;
 751 }
 752
 753
 754 static void wpa_supplicant_set_rekey_offload(void *ctx, const u8 *kek,
 755                                              const u8 *kck,
 756                                              const u8 *replay_ctr)
 757 {
 758         struct wpa_supplicant *wpa_s = ctx;
 759
 760         wpa_drv_set_rekey_info(wpa_s, kek, kck, replay_ctr);
 761 }
 762
 763
 764 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
 765 {
 766 #ifndef CONFIG_NO_WPA
 767         struct wpa_sm_ctx *ctx;
 768         ctx = os_zalloc(sizeof(*ctx));
 769         if (ctx == NULL) {
 770                 wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
 771                 return -1;
 772         }
 773
 774         ctx->ctx = wpa_s;
 775         ctx->msg_ctx = wpa_s;
 776         ctx->set_state = _wpa_supplicant_set_state;
 777         ctx->get_state = _wpa_supplicant_get_state;
 778         ctx->deauthenticate = _wpa_supplicant_deauthenticate;
 779         ctx->disassociate = _wpa_supplicant_disassociate;
 780         ctx->set_key = wpa_supplicant_set_key;
 781         ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
 782         ctx->get_bssid = wpa_supplicant_get_bssid;
 783         ctx->ether_send = _wpa_ether_send;
 784         ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
 785         ctx->alloc_eapol = _wpa_alloc_eapol;
 786         ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
 787         ctx->add_pmkid = wpa_supplicant_add_pmkid;
 788         ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
 789 #ifndef CONFIG_NO_CONFIG_BLOBS
 790         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 791         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 792 #endif /* CONFIG_NO_CONFIG_BLOBS */
 793         ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
 794 #ifdef CONFIG_IEEE80211R
 795         ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
 796         ctx->send_ft_action = wpa_supplicant_send_ft_action;
 797         ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
 798 #endif /* CONFIG_IEEE80211R */
 799 #ifdef CONFIG_TDLS
 800         ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
 801         ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
 802         ctx->tdls_oper = wpa_supplicant_tdls_oper;
 803         ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
 804 #endif /* CONFIG_TDLS */
 805         ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
 806
 807         wpa_s->wpa = wpa_sm_init(ctx);
 808         if (wpa_s->wpa == NULL) {
 809                 wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
 810                            "machine");
 811                 return -1;
 812         }
 813 #endif /* CONFIG_NO_WPA */
 814
 815         return 0;
 816 }
 817
 818
 819 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
 820                                         struct wpa_ssid *ssid)
 821 {
 822         struct rsn_supp_config conf;
 823         if (ssid) {
 824                 os_memset(&conf, 0, sizeof(conf));
 825                 conf.network_ctx = ssid;
 826                 conf.peerkey_enabled = ssid->peerkey;
 827                 conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
 828 #ifdef IEEE8021X_EAPOL
 829                 conf.proactive_key_caching = ssid->proactive_key_caching;
 830                 conf.eap_workaround = ssid->eap_workaround;
 831                 conf.eap_conf_ctx = &ssid->eap;
 832 #endif /* IEEE8021X_EAPOL */
 833                 conf.ssid = ssid->ssid;
 834                 conf.ssid_len = ssid->ssid_len;
 835                 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
 836         }
 837         wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
 838 }