wpa_supplicant/wpas_glue.c

   1 /*
   2  * WPA Supplicant - Glue code to setup EAPOL and RSN modules
   3  * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eapol_supp/eapol_supp_sm.h"
  13 #include "rsn_supp/wpa.h"
  14 #include "eloop.h"
  15 #include "config.h"
  16 #include "l2_packet/l2_packet.h"
  17 #include "common/wpa_common.h"
  18 #include "wpa_supplicant_i.h"
  19 #include "driver_i.h"
  20 #include "rsn_supp/pmksa_cache.h"
  21 #include "sme.h"
  22 #include "common/ieee802_11_defs.h"
  23 #include "common/wpa_ctrl.h"
  24 #include "wpas_glue.h"
  25 #include "wps_supplicant.h"
  26 #include "bss.h"
  27 #include "scan.h"
  28 #include "notify.h"
  29 #include "wpas_kay.h"
  30
  31
  32 #ifndef CONFIG_NO_CONFIG_BLOBS
  33 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
  34 static void wpa_supplicant_set_config_blob(void *ctx,
  35                                            struct wpa_config_blob *blob)
  36 {
  37         struct wpa_supplicant *wpa_s = ctx;
  38         wpa_config_set_blob(wpa_s->conf, blob);
  39         if (wpa_s->conf->update_config) {
  40                 int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
  41                 if (ret) {
  42                         wpa_printf(MSG_DEBUG, "Failed to update config after "
  43                                    "blob set");
  44                 }
  45         }
  46 }
  47
  48
  49 static const struct wpa_config_blob *
  50 wpa_supplicant_get_config_blob(void *ctx, const char *name)
  51 {
  52         struct wpa_supplicant *wpa_s = ctx;
  53         return wpa_config_get_blob(wpa_s->conf, name);
  54 }
  55 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
  56 #endif /* CONFIG_NO_CONFIG_BLOBS */
  57
  58
  59 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
  60 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
  61                             const void *data, u16 data_len,
  62                             size_t *msg_len, void **data_pos)
  63 {
  64         struct ieee802_1x_hdr *hdr;
  65
  66         *msg_len = sizeof(*hdr) + data_len;
  67         hdr = os_malloc(*msg_len);
  68         if (hdr == NULL)
  69                 return NULL;
  70
  71         hdr->version = wpa_s->conf->eapol_version;
  72         hdr->type = type;
  73         hdr->length = host_to_be16(data_len);
  74
  75         if (data)
  76                 os_memcpy(hdr + 1, data, data_len);
  77         else
  78                 os_memset(hdr + 1, 0, data_len);
  79
  80         if (data_pos)
  81                 *data_pos = hdr + 1;
  82
  83         return (u8 *) hdr;
  84 }
  85
  86
  87 /**
  88  * wpa_ether_send - Send Ethernet frame
  89  * @wpa_s: Pointer to wpa_supplicant data
  90  * @dest: Destination MAC address
  91  * @proto: Ethertype in host byte order
  92  * @buf: Frame payload starting from IEEE 802.1X header
  93  * @len: Frame payload length
  94  * Returns: >=0 on success, <0 on failure
  95  */
  96 static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
  97                           u16 proto, const u8 *buf, size_t len)
  98 {
  99         if (wpa_s->l2) {
 100                 return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
 101         }
 102
 103         return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
 104 }
 105 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
 106
 107
 108 #ifdef IEEE8021X_EAPOL
 109
 110 /**
 111  * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
 112  * @ctx: Pointer to wpa_supplicant data (wpa_s)
 113  * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
 114  * @buf: EAPOL payload (after IEEE 802.1X header)
 115  * @len: EAPOL payload length
 116  * Returns: >=0 on success, <0 on failure
 117  *
 118  * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
 119  * to the current Authenticator.
 120  */
 121 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
 122                                      size_t len)
 123 {
 124         struct wpa_supplicant *wpa_s = ctx;
 125         u8 *msg, *dst, bssid[ETH_ALEN];
 126         size_t msglen;
 127         int res;
 128
 129         /* TODO: could add l2_packet_sendmsg that allows fragments to avoid
 130          * extra copy here */
 131
 132         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
 133             wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
 134                 /* Current SSID is not using IEEE 802.1X/EAP, so drop possible
 135                  * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
 136                  * machines. */
 137                 wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
 138                            "mode (type=%d len=%lu)", type,
 139                            (unsigned long) len);
 140                 return -1;
 141         }
 142
 143         if (pmksa_cache_get_current(wpa_s->wpa) &&
 144             type == IEEE802_1X_TYPE_EAPOL_START) {
 145                 /* Trying to use PMKSA caching - do not send EAPOL-Start frames
 146                  * since they will trigger full EAPOL authentication. */
 147                 wpa_printf(MSG_DEBUG, "RSN: PMKSA caching - do not send "
 148                            "EAPOL-Start");
 149                 return -1;
 150         }
 151
 152         if (is_zero_ether_addr(wpa_s->bssid)) {
 153                 wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
 154                            "EAPOL frame");
 155                 if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
 156                     !is_zero_ether_addr(bssid)) {
 157                         dst = bssid;
 158                         wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
 159                                    " from the driver as the EAPOL destination",
 160                                    MAC2STR(dst));
 161                 } else {
 162                         dst = wpa_s->last_eapol_src;
 163                         wpa_printf(MSG_DEBUG, "Using the source address of the"
 164                                    " last received EAPOL frame " MACSTR " as "
 165                                    "the EAPOL destination",
 166                                    MAC2STR(dst));
 167                 }
 168         } else {
 169                 /* BSSID was already set (from (Re)Assoc event, so use it as
 170                  * the EAPOL destination. */
 171                 dst = wpa_s->bssid;
 172         }
 173
 174         msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
 175         if (msg == NULL)
 176                 return -1;
 177
 178         wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
 179         wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
 180         res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
 181         os_free(msg);
 182         return res;
 183 }
 184
 185
 186 /**
 187  * wpa_eapol_set_wep_key - set WEP key for the driver
 188  * @ctx: Pointer to wpa_supplicant data (wpa_s)
 189  * @unicast: 1 = individual unicast key, 0 = broadcast key
 190  * @keyidx: WEP key index (0..3)
 191  * @key: Pointer to key data
 192  * @keylen: Key length in bytes
 193  * Returns: 0 on success or < 0 on error.
 194  */
 195 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
 196                                  const u8 *key, size_t keylen)
 197 {
 198         struct wpa_supplicant *wpa_s = ctx;
 199         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 200                 int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
 201                         WPA_CIPHER_WEP104;
 202                 if (unicast)
 203                         wpa_s->pairwise_cipher = cipher;
 204                 else
 205                         wpa_s->group_cipher = cipher;
 206         }
 207         return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
 208                                unicast ? wpa_s->bssid : NULL,
 209                                keyidx, unicast, NULL, 0, key, keylen);
 210 }
 211
 212
 213 static void wpa_supplicant_aborted_cached(void *ctx)
 214 {
 215         struct wpa_supplicant *wpa_s = ctx;
 216         wpa_sm_aborted_cached(wpa_s->wpa);
 217 }
 218
 219
 220 static const char * result_str(enum eapol_supp_result result)
 221 {
 222         switch (result) {
 223         case EAPOL_SUPP_RESULT_FAILURE:
 224                 return "FAILURE";
 225         case EAPOL_SUPP_RESULT_SUCCESS:
 226                 return "SUCCESS";
 227         case EAPOL_SUPP_RESULT_EXPECTED_FAILURE:
 228                 return "EXPECTED_FAILURE";
 229         }
 230         return "?";
 231 }
 232
 233
 234 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol,
 235                                     enum eapol_supp_result result,
 236                                     void *ctx)
 237 {
 238         struct wpa_supplicant *wpa_s = ctx;
 239         int res, pmk_len;
 240         u8 pmk[PMK_LEN];
 241
 242         wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s",
 243                    result_str(result));
 244
 245         if (wpas_wps_eapol_cb(wpa_s) > 0)
 246                 return;
 247
 248         wpa_s->eap_expected_failure = result ==
 249                 EAPOL_SUPP_RESULT_EXPECTED_FAILURE;
 250
 251         if (result != EAPOL_SUPP_RESULT_SUCCESS) {
 252                 /*
 253                  * Make sure we do not get stuck here waiting for long EAPOL
 254                  * timeout if the AP does not disconnect in case of
 255                  * authentication failure.
 256                  */
 257                 wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
 258         } else {
 259                 ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src);
 260         }
 261
 262         if (result != EAPOL_SUPP_RESULT_SUCCESS ||
 263             !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
 264                 return;
 265
 266         if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
 267                 return;
 268
 269         wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
 270                    "handshake");
 271
 272         pmk_len = PMK_LEN;
 273         if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
 274 #ifdef CONFIG_IEEE80211R
 275                 u8 buf[2 * PMK_LEN];
 276                 wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
 277                            "driver-based 4-way hs and FT");
 278                 res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
 279                 if (res == 0) {
 280                         os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
 281                         os_memset(buf, 0, sizeof(buf));
 282                 }
 283 #else /* CONFIG_IEEE80211R */
 284                 res = -1;
 285 #endif /* CONFIG_IEEE80211R */
 286         } else {
 287                 res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
 288                 if (res) {
 289                         /*
 290                          * EAP-LEAP is an exception from other EAP methods: it
 291                          * uses only 16-byte PMK.
 292                          */
 293                         res = eapol_sm_get_key(eapol, pmk, 16);
 294                         pmk_len = 16;
 295                 }
 296         }
 297
 298         if (res) {
 299                 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
 300                            "machines");
 301                 return;
 302         }
 303
 304         wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
 305                         "handshake", pmk, pmk_len);
 306
 307         if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
 308                             pmk_len)) {
 309                 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
 310         }
 311
 312         wpa_supplicant_cancel_scan(wpa_s);
 313         wpa_supplicant_cancel_auth_timeout(wpa_s);
 314         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 315
 316 }
 317
 318
 319 static void wpa_supplicant_notify_eapol_done(void *ctx)
 320 {
 321         struct wpa_supplicant *wpa_s = ctx;
 322         wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
 323         if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
 324                 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
 325         } else {
 326                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 327                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 328         }
 329 }
 330
 331 #endif /* IEEE8021X_EAPOL */
 332
 333
 334 #ifndef CONFIG_NO_WPA
 335
 336 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
 337 {
 338         int ret = 0;
 339         struct wpa_bss *curr = NULL, *bss;
 340         struct wpa_ssid *ssid = wpa_s->current_ssid;
 341         const u8 *ie;
 342
 343         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 344                 if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 345                         continue;
 346                 if (ssid == NULL ||
 347                     ((bss->ssid_len == ssid->ssid_len &&
 348                       os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
 349                      ssid->ssid_len == 0)) {
 350                         curr = bss;
 351                         break;
 352                 }
 353         }
 354
 355         if (curr) {
 356                 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
 357                 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 358                         ret = -1;
 359
 360                 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
 361                 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
 362                         ret = -1;
 363         } else {
 364                 ret = -1;
 365         }
 366
 367         return ret;
 368 }
 369
 370
 371 static int wpa_supplicant_get_beacon_ie(void *ctx)
 372 {
 373         struct wpa_supplicant *wpa_s = ctx;
 374         if (wpa_get_beacon_ie(wpa_s) == 0) {
 375                 return 0;
 376         }
 377
 378         /* No WPA/RSN IE found in the cached scan results. Try to get updated
 379          * scan results from the driver. */
 380         if (wpa_supplicant_update_scan_results(wpa_s) < 0)
 381                 return -1;
 382
 383         return wpa_get_beacon_ie(wpa_s);
 384 }
 385
 386
 387 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
 388                              const void *data, u16 data_len,
 389                              size_t *msg_len, void **data_pos)
 390 {
 391         return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
 392 }
 393
 394
 395 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
 396                            const u8 *buf, size_t len)
 397 {
 398         return wpa_ether_send(wpa_s, dest, proto, buf, len);
 399 }
 400
 401
 402 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
 403 {
 404         wpa_supplicant_cancel_auth_timeout(wpa_s);
 405 }
 406
 407
 408 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
 409 {
 410         wpa_supplicant_set_state(wpa_s, state);
 411 }
 412
 413
 414 /**
 415  * wpa_supplicant_get_state - Get the connection state
 416  * @wpa_s: Pointer to wpa_supplicant data
 417  * Returns: The current connection state (WPA_*)
 418  */
 419 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
 420 {
 421         return wpa_s->wpa_state;
 422 }
 423
 424
 425 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
 426 {
 427         return wpa_supplicant_get_state(wpa_s);
 428 }
 429
 430
 431 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
 432 {
 433         wpa_supplicant_deauthenticate(wpa_s, reason_code);
 434         /* Schedule a scan to make sure we continue looking for networks */
 435         wpa_supplicant_req_scan(wpa_s, 5, 0);
 436 }
 437
 438
 439 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
 440 {
 441         return wpa_supplicant_get_ssid(wpa_s);
 442 }
 443
 444
 445 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
 446 {
 447         struct wpa_supplicant *wpa_s = ctx;
 448         return wpa_drv_get_bssid(wpa_s, bssid);
 449 }
 450
 451
 452 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
 453                                   const u8 *addr, int key_idx, int set_tx,
 454                                   const u8 *seq, size_t seq_len,
 455                                   const u8 *key, size_t key_len)
 456 {
 457         struct wpa_supplicant *wpa_s = _wpa_s;
 458         if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
 459                 /* Clear the MIC error counter when setting a new PTK. */
 460                 wpa_s->mic_errors_seen = 0;
 461         }
 462 #ifdef CONFIG_TESTING_GET_GTK
 463         if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) &&
 464             alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) {
 465                 os_memcpy(wpa_s->last_gtk, key, key_len);
 466                 wpa_s->last_gtk_len = key_len;
 467         }
 468 #endif /* CONFIG_TESTING_GET_GTK */
 469         return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
 470                                key, key_len);
 471 }
 472
 473
 474 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
 475                                              int protection_type,
 476                                              int key_type)
 477 {
 478         return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
 479                                           key_type);
 480 }
 481
 482
 483 static int wpa_supplicant_add_pmkid(void *wpa_s,
 484                                     const u8 *bssid, const u8 *pmkid)
 485 {
 486         return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
 487 }
 488
 489
 490 static int wpa_supplicant_remove_pmkid(void *wpa_s,
 491                                        const u8 *bssid, const u8 *pmkid)
 492 {
 493         return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
 494 }
 495
 496
 497 #ifdef CONFIG_IEEE80211R
 498 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
 499                                         const u8 *ies, size_t ies_len)
 500 {
 501         struct wpa_supplicant *wpa_s = ctx;
 502         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
 503                 return sme_update_ft_ies(wpa_s, md, ies, ies_len);
 504         return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
 505 }
 506
 507
 508 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
 509                                          const u8 *target_ap,
 510                                          const u8 *ies, size_t ies_len)
 511 {
 512         struct wpa_supplicant *wpa_s = ctx;
 513         return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len);
 514 }
 515
 516
 517 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
 518 {
 519         struct wpa_supplicant *wpa_s = ctx;
 520         struct wpa_driver_auth_params params;
 521         struct wpa_bss *bss;
 522
 523         bss = wpa_bss_get_bssid(wpa_s, target_ap);
 524         if (bss == NULL)
 525                 return -1;
 526
 527         os_memset(&params, 0, sizeof(params));
 528         params.bssid = target_ap;
 529         params.freq = bss->freq;
 530         params.ssid = bss->ssid;
 531         params.ssid_len = bss->ssid_len;
 532         params.auth_alg = WPA_AUTH_ALG_FT;
 533         params.local_state_change = 1;
 534         return wpa_drv_authenticate(wpa_s, &params);
 535 }
 536 #endif /* CONFIG_IEEE80211R */
 537
 538
 539 #ifdef CONFIG_TDLS
 540
 541 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
 542                                         int *tdls_ext_setup)
 543 {
 544         struct wpa_supplicant *wpa_s = ctx;
 545
 546         *tdls_supported = 0;
 547         *tdls_ext_setup = 0;
 548
 549         if (!wpa_s->drv_capa_known)
 550                 return -1;
 551
 552         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
 553                 *tdls_supported = 1;
 554
 555         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
 556                 *tdls_ext_setup = 1;
 557
 558         return 0;
 559 }
 560
 561
 562 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
 563                                          u8 action_code, u8 dialog_token,
 564                                          u16 status_code, u32 peer_capab,
 565                                          const u8 *buf, size_t len)
 566 {
 567         struct wpa_supplicant *wpa_s = ctx;
 568         return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
 569                                       status_code, peer_capab, buf, len);
 570 }
 571
 572
 573 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
 574 {
 575         struct wpa_supplicant *wpa_s = ctx;
 576         return wpa_drv_tdls_oper(wpa_s, oper, peer);
 577 }
 578
 579
 580 static int wpa_supplicant_tdls_peer_addset(
 581         void *ctx, const u8 *peer, int add, u16 aid, u16 capability,
 582         const u8 *supp_rates, size_t supp_rates_len,
 583         const struct ieee80211_ht_capabilities *ht_capab,
 584         const struct ieee80211_vht_capabilities *vht_capab,
 585         u8 qosinfo, const u8 *ext_capab, size_t ext_capab_len,
 586         const u8 *supp_channels, size_t supp_channels_len,
 587         const u8 *supp_oper_classes, size_t supp_oper_classes_len)
 588 {
 589         struct wpa_supplicant *wpa_s = ctx;
 590         struct hostapd_sta_add_params params;
 591
 592         os_memset(&params, 0, sizeof(params));
 593
 594         params.addr = peer;
 595         params.aid = aid;
 596         params.capability = capability;
 597         params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
 598
 599         /*
 600          * TDLS Setup frames do not contain WMM IEs, hence need to depend on
 601          * qosinfo to check if the peer is WMM capable.
 602          */
 603         if (qosinfo)
 604                 params.flags |= WPA_STA_WMM;
 605
 606         params.ht_capabilities = ht_capab;
 607         params.vht_capabilities = vht_capab;
 608         params.qosinfo = qosinfo;
 609         params.listen_interval = 0;
 610         params.supp_rates = supp_rates;
 611         params.supp_rates_len = supp_rates_len;
 612         params.set = !add;
 613         params.ext_capab = ext_capab;
 614         params.ext_capab_len = ext_capab_len;
 615         params.supp_channels = supp_channels;
 616         params.supp_channels_len = supp_channels_len;
 617         params.supp_oper_classes = supp_oper_classes;
 618         params.supp_oper_classes_len = supp_oper_classes_len;
 619
 620         return wpa_drv_sta_add(wpa_s, &params);
 621 }
 622
 623 #endif /* CONFIG_TDLS */
 624
 625 #endif /* CONFIG_NO_WPA */
 626
 627
 628 enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
 629 {
 630         if (os_strcmp(field, "IDENTITY") == 0)
 631                 return WPA_CTRL_REQ_EAP_IDENTITY;
 632         else if (os_strcmp(field, "PASSWORD") == 0)
 633                 return WPA_CTRL_REQ_EAP_PASSWORD;
 634         else if (os_strcmp(field, "NEW_PASSWORD") == 0)
 635                 return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
 636         else if (os_strcmp(field, "PIN") == 0)
 637                 return WPA_CTRL_REQ_EAP_PIN;
 638         else if (os_strcmp(field, "OTP") == 0)
 639                 return WPA_CTRL_REQ_EAP_OTP;
 640         else if (os_strcmp(field, "PASSPHRASE") == 0)
 641                 return WPA_CTRL_REQ_EAP_PASSPHRASE;
 642         else if (os_strcmp(field, "SIM") == 0)
 643                 return WPA_CTRL_REQ_SIM;
 644         return WPA_CTRL_REQ_UNKNOWN;
 645 }
 646
 647
 648 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
 649                                                const char *default_txt,
 650                                                const char **txt)
 651 {
 652         const char *ret = NULL;
 653
 654         *txt = default_txt;
 655
 656         switch (field) {
 657         case WPA_CTRL_REQ_EAP_IDENTITY:
 658                 *txt = "Identity";
 659                 ret = "IDENTITY";
 660                 break;
 661         case WPA_CTRL_REQ_EAP_PASSWORD:
 662                 *txt = "Password";
 663                 ret = "PASSWORD";
 664                 break;
 665         case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
 666                 *txt = "New Password";
 667                 ret = "NEW_PASSWORD";
 668                 break;
 669         case WPA_CTRL_REQ_EAP_PIN:
 670                 *txt = "PIN";
 671                 ret = "PIN";
 672                 break;
 673         case WPA_CTRL_REQ_EAP_OTP:
 674                 ret = "OTP";
 675                 break;
 676         case WPA_CTRL_REQ_EAP_PASSPHRASE:
 677                 *txt = "Private key passphrase";
 678                 ret = "PASSPHRASE";
 679                 break;
 680         case WPA_CTRL_REQ_SIM:
 681                 ret = "SIM";
 682                 break;
 683         default:
 684                 break;
 685         }
 686
 687         /* txt needs to be something */
 688         if (*txt == NULL) {
 689                 wpa_printf(MSG_WARNING, "No message for request %d", field);
 690                 ret = NULL;
 691         }
 692
 693         return ret;
 694 }
 695
 696 #ifdef IEEE8021X_EAPOL
 697 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
 698 static void wpa_supplicant_eap_param_needed(void *ctx,
 699                                             enum wpa_ctrl_req_type field,
 700                                             const char *default_txt)
 701 {
 702         struct wpa_supplicant *wpa_s = ctx;
 703         struct wpa_ssid *ssid = wpa_s->current_ssid;
 704         const char *field_name, *txt = NULL;
 705         char *buf;
 706         size_t buflen;
 707         int len;
 708
 709         if (ssid == NULL)
 710                 return;
 711
 712         wpas_notify_network_request(wpa_s, ssid, field, default_txt);
 713
 714         field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
 715                                                        &txt);
 716         if (field_name == NULL) {
 717                 wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
 718                            field);
 719                 return;
 720         }
 721
 722         wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name);
 723
 724         buflen = 100 + os_strlen(txt) + ssid->ssid_len;
 725         buf = os_malloc(buflen);
 726         if (buf == NULL)
 727                 return;
 728         len = os_snprintf(buf, buflen,
 729                           WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
 730                           field_name, ssid->id, txt);
 731         if (len < 0 || (size_t) len >= buflen) {
 732                 os_free(buf);
 733                 return;
 734         }
 735         if (ssid->ssid && buflen > len + ssid->ssid_len) {
 736                 os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
 737                 len += ssid->ssid_len;
 738                 buf[len] = '\0';
 739         }
 740         buf[buflen - 1] = '\0';
 741         wpa_msg(wpa_s, MSG_INFO, "%s", buf);
 742         os_free(buf);
 743 }
 744 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 745 #define wpa_supplicant_eap_param_needed NULL
 746 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 747
 748
 749 static void wpa_supplicant_port_cb(void *ctx, int authorized)
 750 {
 751         struct wpa_supplicant *wpa_s = ctx;
 752 #ifdef CONFIG_AP
 753         if (wpa_s->ap_iface) {
 754                 wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
 755                            "port status: %s",
 756                            authorized ? "Authorized" : "Unauthorized");
 757                 return;
 758         }
 759 #endif /* CONFIG_AP */
 760         wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
 761                    authorized ? "Authorized" : "Unauthorized");
 762         wpa_drv_set_supp_port(wpa_s, authorized);
 763 }
 764
 765
 766 static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
 767                                    const char *cert_hash,
 768                                    const struct wpabuf *cert)
 769 {
 770         struct wpa_supplicant *wpa_s = ctx;
 771
 772         wpas_notify_certification(wpa_s, depth, subject, cert_hash, cert);
 773 }
 774
 775
 776 static void wpa_supplicant_status_cb(void *ctx, const char *status,
 777                                      const char *parameter)
 778 {
 779         struct wpa_supplicant *wpa_s = ctx;
 780
 781         wpas_notify_eap_status(wpa_s, status, parameter);
 782 }
 783
 784
 785 static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len)
 786 {
 787         struct wpa_supplicant *wpa_s = ctx;
 788         char *str;
 789         int res;
 790
 791         wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
 792                           id, len);
 793
 794         if (wpa_s->current_ssid == NULL)
 795                 return;
 796
 797         if (id == NULL) {
 798                 if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
 799                                    "NULL", 0) < 0)
 800                         return;
 801         } else {
 802                 str = os_malloc(len * 2 + 1);
 803                 if (str == NULL)
 804                         return;
 805                 wpa_snprintf_hex(str, len * 2 + 1, id, len);
 806                 res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
 807                                      str, 0);
 808                 os_free(str);
 809                 if (res < 0)
 810                         return;
 811         }
 812
 813         if (wpa_s->conf->update_config) {
 814                 res = wpa_config_write(wpa_s->confname, wpa_s->conf);
 815                 if (res) {
 816                         wpa_printf(MSG_DEBUG, "Failed to update config after "
 817                                    "anonymous_id update");
 818                 }
 819         }
 820 }
 821 #endif /* IEEE8021X_EAPOL */
 822
 823
 824 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
 825 {
 826 #ifdef IEEE8021X_EAPOL
 827         struct eapol_ctx *ctx;
 828         ctx = os_zalloc(sizeof(*ctx));
 829         if (ctx == NULL) {
 830                 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
 831                 return -1;
 832         }
 833
 834         ctx->ctx = wpa_s;
 835         ctx->msg_ctx = wpa_s;
 836         ctx->eapol_send_ctx = wpa_s;
 837         ctx->preauth = 0;
 838         ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
 839         ctx->eapol_send = wpa_supplicant_eapol_send;
 840         ctx->set_wep_key = wpa_eapol_set_wep_key;
 841 #ifndef CONFIG_NO_CONFIG_BLOBS
 842         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 843         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 844 #endif /* CONFIG_NO_CONFIG_BLOBS */
 845         ctx->aborted_cached = wpa_supplicant_aborted_cached;
 846         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 847         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 848         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 849         ctx->wps = wpa_s->wps;
 850         ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
 851         ctx->port_cb = wpa_supplicant_port_cb;
 852         ctx->cb = wpa_supplicant_eapol_cb;
 853         ctx->cert_cb = wpa_supplicant_cert_cb;
 854         ctx->status_cb = wpa_supplicant_status_cb;
 855         ctx->set_anon_id = wpa_supplicant_set_anon_id;
 856         ctx->cb_ctx = wpa_s;
 857         wpa_s->eapol = eapol_sm_init(ctx);
 858         if (wpa_s->eapol == NULL) {
 859                 os_free(ctx);
 860                 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
 861                            "machines.");
 862                 return -1;
 863         }
 864 #endif /* IEEE8021X_EAPOL */
 865
 866         return 0;
 867 }
 868
 869
 870 #ifndef CONFIG_NO_WPA
 871 static void wpa_supplicant_set_rekey_offload(void *ctx, const u8 *kek,
 872                                              const u8 *kck,
 873                                              const u8 *replay_ctr)
 874 {
 875         struct wpa_supplicant *wpa_s = ctx;
 876
 877         wpa_drv_set_rekey_info(wpa_s, kek, kck, replay_ctr);
 878 }
 879 #endif /* CONFIG_NO_WPA */
 880
 881
 882 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
 883 {
 884 #ifndef CONFIG_NO_WPA
 885         struct wpa_sm_ctx *ctx;
 886         ctx = os_zalloc(sizeof(*ctx));
 887         if (ctx == NULL) {
 888                 wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
 889                 return -1;
 890         }
 891
 892         ctx->ctx = wpa_s;
 893         ctx->msg_ctx = wpa_s;
 894         ctx->set_state = _wpa_supplicant_set_state;
 895         ctx->get_state = _wpa_supplicant_get_state;
 896         ctx->deauthenticate = _wpa_supplicant_deauthenticate;
 897         ctx->set_key = wpa_supplicant_set_key;
 898         ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
 899         ctx->get_bssid = wpa_supplicant_get_bssid;
 900         ctx->ether_send = _wpa_ether_send;
 901         ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
 902         ctx->alloc_eapol = _wpa_alloc_eapol;
 903         ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
 904         ctx->add_pmkid = wpa_supplicant_add_pmkid;
 905         ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
 906 #ifndef CONFIG_NO_CONFIG_BLOBS
 907         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 908         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 909 #endif /* CONFIG_NO_CONFIG_BLOBS */
 910         ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
 911 #ifdef CONFIG_IEEE80211R
 912         ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
 913         ctx->send_ft_action = wpa_supplicant_send_ft_action;
 914         ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
 915 #endif /* CONFIG_IEEE80211R */
 916 #ifdef CONFIG_TDLS
 917         ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
 918         ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
 919         ctx->tdls_oper = wpa_supplicant_tdls_oper;
 920         ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
 921 #endif /* CONFIG_TDLS */
 922         ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
 923
 924         wpa_s->wpa = wpa_sm_init(ctx);
 925         if (wpa_s->wpa == NULL) {
 926                 wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
 927                            "machine");
 928                 return -1;
 929         }
 930 #endif /* CONFIG_NO_WPA */
 931
 932         return 0;
 933 }
 934
 935
 936 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
 937                                         struct wpa_ssid *ssid)
 938 {
 939         struct rsn_supp_config conf;
 940         if (ssid) {
 941                 os_memset(&conf, 0, sizeof(conf));
 942                 conf.network_ctx = ssid;
 943                 conf.peerkey_enabled = ssid->peerkey;
 944                 conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
 945 #ifdef IEEE8021X_EAPOL
 946                 conf.proactive_key_caching = ssid->proactive_key_caching < 0 ?
 947                         wpa_s->conf->okc : ssid->proactive_key_caching;
 948                 conf.eap_workaround = ssid->eap_workaround;
 949                 conf.eap_conf_ctx = &ssid->eap;
 950 #endif /* IEEE8021X_EAPOL */
 951                 conf.ssid = ssid->ssid;
 952                 conf.ssid_len = ssid->ssid_len;
 953                 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
 954 #ifdef CONFIG_P2P
 955                 if (ssid->p2p_group && wpa_s->current_bss &&
 956                     !wpa_s->p2p_disable_ip_addr_req) {
 957                         struct wpabuf *p2p;
 958                         p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
 959                                                           P2P_IE_VENDOR_TYPE);
 960                         if (p2p) {
 961                                 u8 group_capab;
 962                                 group_capab = p2p_get_group_capab(p2p);
 963                                 if (group_capab &
 964                                     P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION)
 965                                         conf.p2p = 1;
 966                                 wpabuf_free(p2p);
 967                         }
 968                 }
 969 #endif /* CONFIG_P2P */
 970         }
 971         wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
 972 }