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