/*
* WPA Supplicant - WPA state machine and EAPOL-Key processing
- * Copyright (c) 2003-2017, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2018, Jouni Malinen <j@w1.fi>
* Copyright(c) 2015 Intel Deutschland GmbH
*
* This software may be distributed under the terms of the BSD license.
#include "crypto/sha512.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
+#include "common/ocv.h"
#include "eap_common/eap_defs.h"
#include "eapol_supp/eapol_supp_sm.h"
+#include "drivers/driver.h"
#include "wpa.h"
#include "eloop.h"
#include "preauth.h"
#include "pmksa_cache.h"
#include "wpa_i.h"
#include "wpa_ie.h"
-#include "peerkey.h"
static const u8 null_rsc[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
int key_info, ver;
u8 bssid[ETH_ALEN], *rbuf, *key_mic, *mic;
- if (sm->key_mgmt == WPA_KEY_MGMT_OSEN ||
- wpa_key_mgmt_suite_b(sm->key_mgmt))
+ if (wpa_use_akm_defined(sm->key_mgmt))
ver = WPA_KEY_INFO_TYPE_AKM_DEFINED;
else if (wpa_key_mgmt_ft(sm->key_mgmt) ||
wpa_key_mgmt_sha256(sm->key_mgmt))
* event before receiving this 1/4 message, so try to find a
* matching PMKSA cache entry here. */
sm->cur_pmksa = pmksa_cache_get(sm->pmksa, src_addr, pmkid,
- NULL);
+ NULL, 0);
if (sm->cur_pmksa) {
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
"RSN: found matching PMKID from PMKSA cache");
eapol_sm_notify_cached(sm->eapol);
#ifdef CONFIG_IEEE80211R
sm->xxkey_len = 0;
+#ifdef CONFIG_SAE
+ if (sm->key_mgmt == WPA_KEY_MGMT_FT_SAE &&
+ sm->pmk_len == PMK_LEN) {
+ /* Need to allow FT key derivation to proceed with
+ * PMK from SAE being used as the XXKey in cases where
+ * the PMKID in msg 1/4 matches the PMKSA entry that was
+ * just added based on SAE authentication for the
+ * initial mobility domain association. */
+ os_memcpy(sm->xxkey, sm->pmk, sm->pmk_len);
+ sm->xxkey_len = sm->pmk_len;
+ }
+#endif /* CONFIG_SAE */
#endif /* CONFIG_IEEE80211R */
} else if (wpa_key_mgmt_wpa_ieee8021x(sm->key_mgmt) && sm->eapol) {
int res, pmk_len;
u8 buf[2 * PMK_LEN];
if (eapol_sm_get_key(sm->eapol, buf, 2 * PMK_LEN) == 0)
{
- os_memcpy(sm->xxkey, buf + PMK_LEN, PMK_LEN);
- sm->xxkey_len = PMK_LEN;
+ if (wpa_key_mgmt_sha384(sm->key_mgmt)) {
+ os_memcpy(sm->xxkey, buf,
+ SHA384_MAC_LEN);
+ sm->xxkey_len = SHA384_MAC_LEN;
+ } else {
+ os_memcpy(sm->xxkey, buf + PMK_LEN,
+ PMK_LEN);
+ sm->xxkey_len = PMK_LEN;
+ }
os_memset(buf, 0, sizeof(buf));
}
#endif /* CONFIG_IEEE80211R */
fils_cache_id);
}
if (!sm->cur_pmksa && pmkid &&
- pmksa_cache_get(sm->pmksa, src_addr, pmkid, NULL))
- {
+ pmksa_cache_get(sm->pmksa, src_addr, pmkid, NULL,
+ 0)) {
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
"RSN: the new PMK matches with the "
"PMKID");
static int wpa_derive_ptk(struct wpa_sm *sm, const unsigned char *src_addr,
const struct wpa_eapol_key *key, struct wpa_ptk *ptk)
{
+ const u8 *z = NULL;
+ size_t z_len = 0;
+
#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->key_mgmt))
return wpa_derive_ptk_ft(sm, src_addr, key, ptk);
#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_DPP2
+ if (sm->key_mgmt == WPA_KEY_MGMT_DPP && sm->dpp_z) {
+ z = wpabuf_head(sm->dpp_z);
+ z_len = wpabuf_len(sm->dpp_z);
+ }
+#endif /* CONFIG_DPP2 */
+
return wpa_pmk_to_ptk(sm->pmk, sm->pmk_len, "Pairwise key expansion",
sm->own_addr, sm->bssid, sm->snonce,
key->key_nonce, ptk, sm->key_mgmt,
- sm->pairwise_cipher);
+ sm->pairwise_cipher, z, z_len);
}
/* Calculate PTK which will be stored as a temporary PTK until it has
* been verified when processing message 3/4. */
ptk = &sm->tptk;
- wpa_derive_ptk(sm, src_addr, key, ptk);
+ if (wpa_derive_ptk(sm, src_addr, key, ptk) < 0)
+ goto failed;
if (sm->pairwise_cipher == WPA_CIPHER_TKIP) {
u8 buf[8];
/* Supplicant: swap tx/rx Mic keys */
kde = sm->assoc_wpa_ie;
kde_len = sm->assoc_wpa_ie_len;
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm)) {
+ struct wpa_channel_info ci;
+ u8 *pos;
+
+ if (wpa_sm_channel_info(sm, &ci) != 0) {
+ wpa_printf(MSG_WARNING,
+ "Failed to get channel info for OCI element in EAPOL-Key 2/4");
+ goto failed;
+ }
+
+ kde_buf = os_malloc(kde_len + 2 + RSN_SELECTOR_LEN + 3);
+ if (!kde_buf) {
+ wpa_printf(MSG_WARNING,
+ "Failed to allocate memory for KDE with OCI in EAPOL-Key 2/4");
+ goto failed;
+ }
+
+ os_memcpy(kde_buf, kde, kde_len);
+ kde = kde_buf;
+ pos = kde + kde_len;
+ if (ocv_insert_oci_kde(&ci, &pos) < 0)
+ goto failed;
+ kde_len = pos - kde;
+ }
+#endif /* CONFIG_OCV */
+
#ifdef CONFIG_P2P
if (sm->p2p) {
kde_buf = os_malloc(kde_len + 2 + RSN_SELECTOR_LEN + 1);
* likelihood of the first preauth EAPOL-Start frame getting to
* the target AP.
*/
- eloop_register_timeout(1, 0, wpa_sm_start_preauth, sm, NULL);
+ if (!dl_list_empty(&sm->pmksa_candidates))
+ eloop_register_timeout(1, 0, wpa_sm_start_preauth,
+ sm, NULL);
}
if (sm->cur_pmksa && sm->cur_pmksa->opportunistic) {
alg = wpa_cipher_to_alg(sm->pairwise_cipher);
keylen = wpa_cipher_key_len(sm->pairwise_cipher);
+ if (keylen <= 0 || (unsigned int) keylen != sm->ptk.tk_len) {
+ wpa_printf(MSG_DEBUG, "WPA: TK length mismatch: %d != %lu",
+ keylen, (long unsigned int) sm->ptk.tk_len);
+ return -1;
+ }
rsclen = wpa_cipher_rsc_len(sm->pairwise_cipher);
if (sm->proto == WPA_PROTO_RSN || sm->proto == WPA_PROTO_OSEN) {
/* TK is not needed anymore in supplicant */
os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN);
+ sm->ptk.tk_len = 0;
sm->ptk.installed = 1;
if (sm->wpa_ptk_rekey) {
}
os_memset(&gd, 0, sizeof(gd));
- wpa_supplicant_key_neg_complete(sm, sm->bssid,
- key_info & WPA_KEY_INFO_SECURE);
return 0;
}
}
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
- "WPA: IGTK keyid %d pn %02x%02x%02x%02x%02x%02x",
+ "WPA: IGTK keyid %d pn " COMPACT_MACSTR,
keyidx, MAC2STR(igtk->pn));
wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK", igtk->igtk, len);
if (keyidx > 4095) {
}
#endif /* CONFIG_P2P */
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm)) {
+ struct wpa_channel_info ci;
+
+ if (wpa_sm_channel_info(sm, &ci) != 0) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
+ "Failed to get channel info to validate received OCI in EAPOL-Key 3/4");
+ return;
+ }
+
+ if (ocv_verify_tx_params(ie.oci, ie.oci_len, &ci,
+ channel_width_to_int(ci.chanwidth),
+ ci.seg1_idx) != 0) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, "%s",
+ ocv_errorstr);
+ return;
+ }
+ }
+#endif /* CONFIG_OCV */
+
if (wpa_supplicant_send_4_of_4(sm, sm->bssid, key, ver, key_info,
&sm->ptk) < 0) {
goto failed;
wpa_sm_set_state(sm, WPA_GROUP_HANDSHAKE);
if (sm->group_cipher == WPA_CIPHER_GTK_NOT_USED) {
- wpa_supplicant_key_neg_complete(sm, sm->bssid,
- key_info & WPA_KEY_INFO_SECURE);
+ /* No GTK to be set to the driver */
+ } else if (!ie.gtk && sm->proto == WPA_PROTO_RSN) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
+ "RSN: No GTK KDE included in EAPOL-Key msg 3/4");
+ goto failed;
} else if (ie.gtk &&
wpa_supplicant_pairwise_gtk(sm, key,
ie.gtk, ie.gtk_len, key_info) < 0) {
goto failed;
}
+ if (sm->group_cipher == WPA_CIPHER_GTK_NOT_USED || ie.gtk)
+ wpa_supplicant_key_neg_complete(sm, sm->bssid,
+ key_info & WPA_KEY_INFO_SECURE);
+
if (ie.gtk)
wpa_sm_set_rekey_offload(sm);
- if (sm->proto == WPA_PROTO_RSN && wpa_key_mgmt_suite_b(sm->key_mgmt)) {
+ /* Add PMKSA cache entry for Suite B AKMs here since PMKID can be
+ * calculated only after KCK has been derived. Though, do not replace an
+ * existing PMKSA entry after each 4-way handshake (i.e., new KCK/PMKID)
+ * to avoid unnecessary changes of PMKID while continuing to use the
+ * same PMK. */
+ if (sm->proto == WPA_PROTO_RSN && wpa_key_mgmt_suite_b(sm->key_mgmt) &&
+ !sm->cur_pmksa) {
struct rsn_pmksa_cache_entry *sa;
sa = pmksa_cache_add(sm->pmksa, sm->pmk, sm->pmk_len, NULL,
}
maxkeylen = gd->gtk_len = ie.gtk_len - 2;
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm)) {
+ struct wpa_channel_info ci;
+
+ if (wpa_sm_channel_info(sm, &ci) != 0) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
+ "Failed to get channel info to validate received OCI in EAPOL-Key group msg 1/2");
+ return -1;
+ }
+
+ if (ocv_verify_tx_params(ie.oci, ie.oci_len, &ci,
+ channel_width_to_int(ci.chanwidth),
+ ci.seg1_idx) != 0) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, "%s",
+ ocv_errorstr);
+ return -1;
+ }
+ }
+#endif /* CONFIG_OCV */
+
if (wpa_supplicant_check_group_cipher(sm, sm->group_cipher,
gd->gtk_len, maxkeylen,
&gd->key_rsc_len, &gd->alg))
size_t mic_len, hdrlen, rlen;
struct wpa_eapol_key *reply;
u8 *rbuf, *key_mic;
+ size_t kde_len = 0;
+
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm))
+ kde_len = OCV_OCI_KDE_LEN;
+#endif /* CONFIG_OCV */
mic_len = wpa_mic_len(sm->key_mgmt, sm->pmk_len);
hdrlen = sizeof(*reply) + mic_len + 2;
rbuf = wpa_sm_alloc_eapol(sm, IEEE802_1X_TYPE_EAPOL_KEY, NULL,
- hdrlen, &rlen, (void *) &reply);
+ hdrlen + kde_len, &rlen, (void *) &reply);
if (rbuf == NULL)
return -1;
WPA_REPLAY_COUNTER_LEN);
key_mic = (u8 *) (reply + 1);
- WPA_PUT_BE16(key_mic + mic_len, 0);
+ WPA_PUT_BE16(key_mic + mic_len, kde_len); /* Key Data Length */
+
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm)) {
+ struct wpa_channel_info ci;
+ u8 *pos;
+
+ if (wpa_sm_channel_info(sm, &ci) != 0) {
+ wpa_printf(MSG_WARNING,
+ "Failed to get channel info for OCI element in EAPOL-Key 2/2");
+ os_free(rbuf);
+ return -1;
+ }
+
+ pos = key_mic + mic_len + 2; /* Key Data */
+ if (ocv_insert_oci_kde(&ci, &pos) < 0) {
+ os_free(rbuf);
+ return -1;
+ }
+ }
+#endif /* CONFIG_OCV */
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Sending EAPOL-Key 2/2");
return wpa_eapol_key_send(sm, &sm->ptk, ver, sm->bssid, ETH_P_EAPOL,
os_memcpy(mic, key + 1, mic_len);
if (sm->tptk_set) {
os_memset(key + 1, 0, mic_len);
- wpa_eapol_key_mic(sm->tptk.kck, sm->tptk.kck_len, sm->key_mgmt,
- ver, buf, len, (u8 *) (key + 1));
- if (os_memcmp_const(mic, key + 1, mic_len) != 0) {
+ if (wpa_eapol_key_mic(sm->tptk.kck, sm->tptk.kck_len,
+ sm->key_mgmt,
+ ver, buf, len, (u8 *) (key + 1)) < 0 ||
+ os_memcmp_const(mic, key + 1, mic_len) != 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Invalid EAPOL-Key MIC "
"when using TPTK - ignoring TPTK");
+#ifdef TEST_FUZZ
+ wpa_printf(MSG_INFO,
+ "TEST: Ignore Key MIC failure for fuzz testing");
+ goto continue_fuzz;
+#endif /* TEST_FUZZ */
} else {
+#ifdef TEST_FUZZ
+ continue_fuzz:
+#endif /* TEST_FUZZ */
ok = 1;
sm->tptk_set = 0;
sm->ptk_set = 1;
os_memcpy(&sm->ptk, &sm->tptk, sizeof(sm->ptk));
os_memset(&sm->tptk, 0, sizeof(sm->tptk));
+ /*
+ * This assures the same TPTK in sm->tptk can never be
+ * copied twice to sm->ptk as the new PTK. In
+ * combination with the installed flag in the wpa_ptk
+ * struct, this assures the same PTK is only installed
+ * once.
+ */
+ sm->renew_snonce = 1;
}
}
if (!ok && sm->ptk_set) {
os_memset(key + 1, 0, mic_len);
- wpa_eapol_key_mic(sm->ptk.kck, sm->ptk.kck_len, sm->key_mgmt,
- ver, buf, len, (u8 *) (key + 1));
- if (os_memcmp_const(mic, key + 1, mic_len) != 0) {
+ if (wpa_eapol_key_mic(sm->ptk.kck, sm->ptk.kck_len,
+ sm->key_mgmt,
+ ver, buf, len, (u8 *) (key + 1)) < 0 ||
+ os_memcmp_const(mic, key + 1, mic_len) != 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Invalid EAPOL-Key MIC - "
"dropping packet");
+#ifdef TEST_FUZZ
+ wpa_printf(MSG_INFO,
+ "TEST: Ignore Key MIC failure for fuzz testing");
+ goto continue_fuzz2;
+#endif /* TEST_FUZZ */
return -1;
}
+#ifdef TEST_FUZZ
+ continue_fuzz2:
+#endif /* TEST_FUZZ */
ok = 1;
}
#endif /* CONFIG_NO_RC4 */
} else if (ver == WPA_KEY_INFO_TYPE_HMAC_SHA1_AES ||
ver == WPA_KEY_INFO_TYPE_AES_128_CMAC ||
- sm->key_mgmt == WPA_KEY_MGMT_OWE ||
- sm->key_mgmt == WPA_KEY_MGMT_DPP ||
- sm->key_mgmt == WPA_KEY_MGMT_OSEN ||
- wpa_key_mgmt_suite_b(sm->key_mgmt)) {
+ wpa_use_aes_key_wrap(sm->key_mgmt)) {
u8 *buf;
wpa_printf(MSG_DEBUG,
"WPA: No memory for AES-UNWRAP buffer");
return -1;
}
+#ifdef TEST_FUZZ
+ os_memset(buf, 0x11, *key_data_len);
+#endif /* TEST_FUZZ */
if (aes_unwrap(sm->ptk.kek, sm->ptk.kek_len, *key_data_len / 8,
key_data, buf)) {
+#ifdef TEST_FUZZ
+ wpa_printf(MSG_INFO,
+ "TEST: Ignore AES unwrap failure for fuzz testing");
+ goto continue_fuzz;
+#endif /* TEST_FUZZ */
bin_clear_free(buf, *key_data_len);
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: AES unwrap failed - "
"could not decrypt EAPOL-Key key data");
return -1;
}
+#ifdef TEST_FUZZ
+ continue_fuzz:
+#endif /* TEST_FUZZ */
os_memcpy(key_data, buf, *key_data_len);
bin_clear_free(buf, *key_data_len);
WPA_PUT_BE16(((u8 *) (key + 1)) + mic_len, *key_data_len);
u16 key_info, ver;
u8 *tmp = NULL;
int ret = -1;
- struct wpa_peerkey *peerkey = NULL;
u8 *mic, *key_data;
size_t mic_len, keyhdrlen;
ver != WPA_KEY_INFO_TYPE_AES_128_CMAC &&
#endif /* CONFIG_IEEE80211R || CONFIG_IEEE80211W */
ver != WPA_KEY_INFO_TYPE_HMAC_SHA1_AES &&
- !wpa_key_mgmt_suite_b(sm->key_mgmt) &&
- !wpa_key_mgmt_fils(sm->key_mgmt) &&
- sm->key_mgmt != WPA_KEY_MGMT_OWE &&
- sm->key_mgmt != WPA_KEY_MGMT_DPP &&
- sm->key_mgmt != WPA_KEY_MGMT_OSEN) {
+ !wpa_use_akm_defined(sm->key_mgmt)) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: Unsupported EAPOL-Key descriptor version %d",
ver);
goto out;
}
- if (sm->key_mgmt == WPA_KEY_MGMT_OSEN &&
- ver != WPA_KEY_INFO_TYPE_AKM_DEFINED) {
- wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
- "OSEN: Unsupported EAPOL-Key descriptor version %d",
- ver);
- goto out;
- }
-
- if ((wpa_key_mgmt_suite_b(sm->key_mgmt) ||
- wpa_key_mgmt_fils(sm->key_mgmt) ||
- sm->key_mgmt == WPA_KEY_MGMT_DPP ||
- sm->key_mgmt == WPA_KEY_MGMT_OWE) &&
+ if (wpa_use_akm_defined(sm->key_mgmt) &&
ver != WPA_KEY_INFO_TYPE_AKM_DEFINED) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"RSN: Unsupported EAPOL-Key descriptor version %d (expected AKM defined = 0)",
#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->key_mgmt)) {
/* IEEE 802.11r uses a new key_info type (AES-128-CMAC). */
- if (ver != WPA_KEY_INFO_TYPE_AES_128_CMAC) {
+ if (ver != WPA_KEY_INFO_TYPE_AES_128_CMAC &&
+ !wpa_use_akm_defined(sm->key_mgmt)) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"FT: AP did not use AES-128-CMAC");
goto out;
#ifdef CONFIG_IEEE80211W
if (wpa_key_mgmt_sha256(sm->key_mgmt)) {
if (ver != WPA_KEY_INFO_TYPE_AES_128_CMAC &&
- sm->key_mgmt != WPA_KEY_MGMT_OSEN &&
- !wpa_key_mgmt_fils(sm->key_mgmt) &&
- !wpa_key_mgmt_suite_b(sm->key_mgmt)) {
+ !wpa_use_akm_defined(sm->key_mgmt)) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: AP did not use the "
"negotiated AES-128-CMAC");
} else
#endif /* CONFIG_IEEE80211W */
if (sm->pairwise_cipher == WPA_CIPHER_CCMP &&
- !wpa_key_mgmt_suite_b(sm->key_mgmt) &&
- !wpa_key_mgmt_fils(sm->key_mgmt) &&
- sm->key_mgmt != WPA_KEY_MGMT_OWE &&
- sm->key_mgmt != WPA_KEY_MGMT_DPP &&
+ !wpa_use_akm_defined(sm->key_mgmt) &&
ver != WPA_KEY_INFO_TYPE_HMAC_SHA1_AES) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: CCMP is used, but EAPOL-Key "
} else
goto out;
} else if (sm->pairwise_cipher == WPA_CIPHER_GCMP &&
- !wpa_key_mgmt_suite_b(sm->key_mgmt) &&
+ !wpa_use_akm_defined(sm->key_mgmt) &&
ver != WPA_KEY_INFO_TYPE_HMAC_SHA1_AES) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: GCMP is used, but EAPOL-Key "
goto out;
}
-#ifdef CONFIG_PEERKEY
- for (peerkey = sm->peerkey; peerkey; peerkey = peerkey->next) {
- if (os_memcmp(peerkey->addr, src_addr, ETH_ALEN) == 0)
- break;
- }
-
- if (!(key_info & WPA_KEY_INFO_SMK_MESSAGE) && peerkey) {
- if (!peerkey->initiator && peerkey->replay_counter_set &&
- os_memcmp(key->replay_counter, peerkey->replay_counter,
- WPA_REPLAY_COUNTER_LEN) <= 0) {
- wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
- "RSN: EAPOL-Key Replay Counter did not "
- "increase (STK) - dropping packet");
- goto out;
- } else if (peerkey->initiator) {
- u8 _tmp[WPA_REPLAY_COUNTER_LEN];
- os_memcpy(_tmp, key->replay_counter,
- WPA_REPLAY_COUNTER_LEN);
- inc_byte_array(_tmp, WPA_REPLAY_COUNTER_LEN);
- if (os_memcmp(_tmp, peerkey->replay_counter,
- WPA_REPLAY_COUNTER_LEN) != 0) {
- wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
- "RSN: EAPOL-Key Replay "
- "Counter did not match (STK) - "
- "dropping packet");
- goto out;
- }
- }
- }
-
- if (peerkey && peerkey->initiator && (key_info & WPA_KEY_INFO_ACK)) {
- wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
- "RSN: Ack bit in key_info from STK peer");
- goto out;
- }
-#endif /* CONFIG_PEERKEY */
-
- if (!peerkey && sm->rx_replay_counter_set &&
+ if (sm->rx_replay_counter_set &&
os_memcmp(key->replay_counter, sm->rx_replay_counter,
WPA_REPLAY_COUNTER_LEN) <= 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
goto out;
}
- if (!(key_info & (WPA_KEY_INFO_ACK | WPA_KEY_INFO_SMK_MESSAGE))
-#ifdef CONFIG_PEERKEY
- && (peerkey == NULL || !peerkey->initiator)
-#endif /* CONFIG_PEERKEY */
- ) {
+ if (key_info & WPA_KEY_INFO_SMK_MESSAGE) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
+ "WPA: Unsupported SMK bit in key_info");
+ goto out;
+ }
+
+ if (!(key_info & WPA_KEY_INFO_ACK)) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: No Ack bit in key_info");
goto out;
goto out;
}
- if ((key_info & WPA_KEY_INFO_MIC) && !peerkey &&
+ if ((key_info & WPA_KEY_INFO_MIC) &&
wpa_supplicant_verify_eapol_key_mic(sm, key, ver, tmp, data_len))
goto out;
-#ifdef CONFIG_PEERKEY
- if ((key_info & WPA_KEY_INFO_MIC) && peerkey &&
- peerkey_verify_eapol_key_mic(sm, peerkey, key, ver, tmp,
- data_len))
- goto out;
-#endif /* CONFIG_PEERKEY */
-
#ifdef CONFIG_FILS
if (!mic_len && (key_info & WPA_KEY_INFO_ENCR_KEY_DATA)) {
if (wpa_supp_aead_decrypt(sm, tmp, data_len, &key_data_len))
if ((sm->proto == WPA_PROTO_RSN || sm->proto == WPA_PROTO_OSEN) &&
(key_info & WPA_KEY_INFO_ENCR_KEY_DATA) && mic_len) {
+ /*
+ * Only decrypt the Key Data field if the frame's authenticity
+ * was verified. When using AES-SIV (FILS), the MIC flag is not
+ * set, so this check should only be performed if mic_len != 0
+ * which is the case in this code branch.
+ */
+ if (!(key_info & WPA_KEY_INFO_MIC)) {
+ wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
+ "WPA: Ignore EAPOL-Key with encrypted but unauthenticated data");
+ goto out;
+ }
if (wpa_supplicant_decrypt_key_data(sm, key, mic_len,
ver, key_data,
&key_data_len))
"non-zero key index");
goto out;
}
- if (peerkey) {
- /* PeerKey 4-Way Handshake */
- peerkey_rx_eapol_4way(sm, peerkey, key, key_info, ver,
- key_data, key_data_len);
- } else if (key_info & (WPA_KEY_INFO_MIC |
- WPA_KEY_INFO_ENCR_KEY_DATA)) {
+ if (key_info & (WPA_KEY_INFO_MIC |
+ WPA_KEY_INFO_ENCR_KEY_DATA)) {
/* 3/4 4-Way Handshake */
wpa_supplicant_process_3_of_4(sm, key, ver, key_data,
key_data_len);
ver, key_data,
key_data_len);
}
- } else if (key_info & WPA_KEY_INFO_SMK_MESSAGE) {
- /* PeerKey SMK Handshake */
- peerkey_rx_eapol_smk(sm, src_addr, key, key_data, key_data_len,
- key_info, ver);
} else {
if ((mic_len && (key_info & WPA_KEY_INFO_MIC)) ||
(!mic_len && (key_info & WPA_KEY_INFO_ENCR_KEY_DATA))) {
}
if (deauth) {
+ sm->pmk_len = 0;
os_memset(sm->pmk, 0, sizeof(sm->pmk));
wpa_sm_deauthenticate(sm, WLAN_REASON_UNSPECIFIED);
}
os_free(sm->ap_rsn_ie);
wpa_sm_drop_sa(sm);
os_free(sm->ctx);
- peerkey_deinit(sm);
#ifdef CONFIG_IEEE80211R
os_free(sm->assoc_resp_ies);
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_OWE
crypto_ecdh_deinit(sm->owe_ecdh);
#endif /* CONFIG_OWE */
+#ifdef CONFIG_DPP2
+ wpabuf_clear_free(sm->dpp_z);
+#endif /* CONFIG_DPP2 */
os_free(sm);
}
{
eloop_cancel_timeout(wpa_sm_start_preauth, sm, NULL);
eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL);
- peerkey_deinit(sm);
rsn_preauth_deinit(sm);
pmksa_cache_clear_current(sm);
if (wpa_sm_get_state(sm) == WPA_4WAY_HANDSHAKE)
#ifdef CONFIG_FILS
sm->fils_completed = 0;
#endif /* CONFIG_FILS */
+#ifdef CONFIG_IEEE80211R
+ sm->ft_reassoc_completed = 0;
+#endif /* CONFIG_IEEE80211R */
/* Keys are not needed in the WPA state machine anymore */
wpa_sm_drop_sa(sm);
sm->msg_3_of_4_ok = 0;
+ os_memset(sm->bssid, 0, ETH_ALEN);
}
if (sm == NULL)
return;
+ wpa_hexdump_key(MSG_DEBUG, "WPA: Set PMK based on external data",
+ pmk, pmk_len);
sm->pmk_len = pmk_len;
os_memcpy(sm->pmk, pmk, pmk_len);
return;
if (sm->cur_pmksa) {
+ wpa_hexdump_key(MSG_DEBUG,
+ "WPA: Set PMK based on current PMKSA",
+ sm->cur_pmksa->pmk, sm->cur_pmksa->pmk_len);
sm->pmk_len = sm->cur_pmksa->pmk_len;
os_memcpy(sm->pmk, sm->cur_pmksa->pmk, sm->pmk_len);
} else {
- sm->pmk_len = PMK_LEN;
- os_memset(sm->pmk, 0, PMK_LEN);
+ wpa_printf(MSG_DEBUG, "WPA: No current PMKSA - clear PMK");
+ sm->pmk_len = 0;
+ os_memset(sm->pmk, 0, PMK_LEN_MAX);
}
}
if (config) {
sm->network_ctx = config->network_ctx;
- sm->peerkey_enabled = config->peerkey_enabled;
sm->allowed_pairwise_cipher = config->allowed_pairwise_cipher;
sm->proactive_key_caching = config->proactive_key_caching;
sm->eap_workaround = config->eap_workaround;
#endif /* CONFIG_FILS */
} else {
sm->network_ctx = NULL;
- sm->peerkey_enabled = 0;
sm->allowed_pairwise_cipher = 0;
sm->proactive_key_caching = 0;
sm->eap_workaround = 0;
case WPA_PARAM_MFP:
sm->mfp = value;
break;
+ case WPA_PARAM_OCV:
+ sm->ocv = value;
+ break;
default:
break;
}
}
+int wpa_sm_ocv_enabled(struct wpa_sm *sm)
+{
+ struct wpa_ie_data rsn;
+
+ if (!sm->ocv || !sm->ap_rsn_ie)
+ return 0;
+
+ return wpa_parse_wpa_ie_rsn(sm->ap_rsn_ie, sm->ap_rsn_ie_len,
+ &rsn) >= 0 &&
+ (rsn.capabilities & WPA_CAPABILITY_OCVC);
+}
+
+
/**
* wpa_sm_set_assoc_wpa_ie_default - Generate own WPA/RSN IE from configuration
* @sm: Pointer to WPA state machine data from wpa_sm_init()
int wpa_sm_pmksa_exists(struct wpa_sm *sm, const u8 *bssid,
const void *network_ctx)
{
- return pmksa_cache_get(sm->pmksa, bssid, NULL, network_ctx) != NULL;
+ return pmksa_cache_get(sm->pmksa, bssid, NULL, network_ctx, 0) != NULL;
}
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Clear old PMK and PTK");
sm->ptk_set = 0;
sm->tptk_set = 0;
+ sm->pmk_len = 0;
os_memset(sm->pmk, 0, sizeof(sm->pmk));
os_memset(&sm->ptk, 0, sizeof(sm->ptk));
os_memset(&sm->tptk, 0, sizeof(sm->tptk));
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
os_memset(sm->xxkey, 0, sizeof(sm->xxkey));
+ sm->xxkey_len = 0;
os_memset(sm->pmk_r0, 0, sizeof(sm->pmk_r0));
+ sm->pmk_r0_len = 0;
os_memset(sm->pmk_r1, 0, sizeof(sm->pmk_r1));
+ sm->pmk_r1_len = 0;
#endif /* CONFIG_IEEE80211R */
}
#endif /* CONFIG_WNM */
-#ifdef CONFIG_PEERKEY
-int wpa_sm_rx_eapol_peerkey(struct wpa_sm *sm, const u8 *src_addr,
- const u8 *buf, size_t len)
-{
- struct wpa_peerkey *peerkey;
-
- for (peerkey = sm->peerkey; peerkey; peerkey = peerkey->next) {
- if (os_memcmp(peerkey->addr, src_addr, ETH_ALEN) == 0)
- break;
- }
-
- if (!peerkey)
- return 0;
-
- wpa_sm_rx_eapol(sm, src_addr, buf, len);
-
- return 1;
-}
-#endif /* CONFIG_PEERKEY */
-
-
#ifdef CONFIG_P2P
int wpa_sm_get_p2p_ip_addr(struct wpa_sm *sm, u8 *buf)
#ifdef CONFIG_TESTING_OPTIONS
+
void wpa_sm_set_test_assoc_ie(struct wpa_sm *sm, struct wpabuf *buf)
{
wpabuf_free(sm->test_assoc_ie);
sm->test_assoc_ie = buf;
}
+
+
+const u8 * wpa_sm_get_anonce(struct wpa_sm *sm)
+{
+ return sm->anonce;
+}
+
#endif /* CONFIG_TESTING_OPTIONS */
+unsigned int wpa_sm_get_key_mgmt(struct wpa_sm *sm)
+{
+ return sm->key_mgmt;
+}
+
+
#ifdef CONFIG_FILS
struct wpabuf * fils_build_auth(struct wpa_sm *sm, int dh_group, const u8 *md)
os_memcpy(sm->fils_anonce, elems.fils_nonce, FILS_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "FILS: ANonce", sm->fils_anonce, FILS_NONCE_LEN);
+#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->key_mgmt)) {
struct wpa_ft_ies parse;
goto fail;
}
- if (wpa_ft_parse_ies(pos, end - pos, &parse) < 0) {
+ if (wpa_ft_parse_ies(pos, end - pos, &parse,
+ wpa_key_mgmt_sha384(sm->key_mgmt)) < 0) {
wpa_printf(MSG_DEBUG, "FILS+FT: Failed to parse IEs");
goto fail;
}
wpabuf_free(sm->fils_ft_ies);
sm->fils_ft_ies = NULL;
}
+#endif /* CONFIG_IEEE80211R */
/* PMKID List */
if (rsn.pmkid && rsn.num_pmkid > 0) {
struct rsn_ie_hdr *rsnie;
u16 capab;
u8 *pos;
+ int use_sha384 = wpa_key_mgmt_sha384(sm->key_mgmt);
/* RSNIE[PMKR0Name/PMKR1Name] */
rsnie = wpabuf_put(buf, sizeof(*rsnie));
if (sm->mgmt_group_cipher == WPA_CIPHER_AES_128_CMAC)
capab |= WPA_CAPABILITY_MFPC;
#endif /* CONFIG_IEEE80211W */
+ if (sm->ocv)
+ capab |= WPA_CAPABILITY_OCVC;
wpabuf_put_le16(buf, capab);
/* PMKID Count */
if (wpa_derive_pmk_r0(sm->fils_ft, sm->fils_ft_len, sm->ssid,
sm->ssid_len, sm->mobility_domain,
sm->r0kh_id, sm->r0kh_id_len, sm->own_addr,
- sm->pmk_r0, sm->pmk_r0_name) < 0) {
+ sm->pmk_r0, sm->pmk_r0_name, use_sha384) < 0) {
wpa_printf(MSG_WARNING, "FILS+FT: Could not derive PMK-R0");
return -1;
}
- wpa_hexdump_key(MSG_DEBUG, "FILS+FT: PMK-R0", sm->pmk_r0, PMK_LEN);
+ sm->pmk_r0_len = use_sha384 ? SHA384_MAC_LEN : PMK_LEN;
+ wpa_hexdump_key(MSG_DEBUG, "FILS+FT: PMK-R0",
+ sm->pmk_r0, sm->pmk_r0_len);
wpa_hexdump(MSG_DEBUG, "FILS+FT: PMKR0Name",
sm->pmk_r0_name, WPA_PMK_NAME_LEN);
wpa_printf(MSG_DEBUG, "FILS+FT: R1KH-ID: " MACSTR,
MAC2STR(sm->r1kh_id));
pos = wpabuf_put(buf, WPA_PMK_NAME_LEN);
if (wpa_derive_pmk_r1_name(sm->pmk_r0_name, sm->r1kh_id, sm->own_addr,
- pos) < 0) {
+ sm->pmk_r1_name, use_sha384) < 0) {
wpa_printf(MSG_WARNING, "FILS+FT: Could not derive PMKR1Name");
return -1;
}
- wpa_hexdump(MSG_DEBUG, "FILS+FT: PMKR1Name", pos, WPA_PMK_NAME_LEN);
+ wpa_hexdump(MSG_DEBUG, "FILS+FT: PMKR1Name", sm->pmk_r1_name,
+ WPA_PMK_NAME_LEN);
+ os_memcpy(pos, sm->pmk_r1_name, WPA_PMK_NAME_LEN);
#ifdef CONFIG_IEEE80211W
if (sm->mgmt_group_cipher == WPA_CIPHER_AES_128_CMAC) {
/* TODO: FILS IP Address Assignment */
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm)) {
+ struct wpa_channel_info ci;
+ u8 *pos;
+
+ if (wpa_sm_channel_info(sm, &ci) != 0) {
+ wpa_printf(MSG_WARNING,
+ "FILS: Failed to get channel info for OCI element");
+ wpabuf_free(buf);
+ return NULL;
+ }
+
+ pos = wpabuf_put(buf, OCV_OCI_EXTENDED_LEN);
+ if (ocv_insert_extended_oci(&ci, pos) < 0) {
+ wpabuf_free(buf);
+ return NULL;
+ }
+ }
+#endif /* CONFIG_OCV */
+
wpa_hexdump_buf(MSG_DEBUG, "FILS: Association Request plaintext", buf);
*kek = sm->ptk.kek;
return -1;
}
+ if (sm->fils_completed) {
+ wpa_printf(MSG_DEBUG,
+ "FILS: Association has already been completed for this FILS authentication - ignore unexpected retransmission");
+ return -1;
+ }
+
wpa_hexdump(MSG_DEBUG, "FILS: (Re)Association Response frame",
resp, len);
goto fail;
}
+#ifdef CONFIG_OCV
+ if (wpa_sm_ocv_enabled(sm)) {
+ struct wpa_channel_info ci;
+
+ if (wpa_sm_channel_info(sm, &ci) != 0) {
+ wpa_printf(MSG_WARNING,
+ "Failed to get channel info to validate received OCI in FILS (Re)Association Response frame");
+ goto fail;
+ }
+
+ if (ocv_verify_tx_params(elems.oci, elems.oci_len, &ci,
+ channel_width_to_int(ci.chanwidth),
+ ci.seg1_idx) != 0) {
+ wpa_printf(MSG_WARNING, "FILS: %s", ocv_errorstr);
+ goto fail;
+ }
+ }
+#endif /* CONFIG_OCV */
+
+#ifdef CONFIG_IEEE80211R
+ if (wpa_key_mgmt_ft(sm->key_mgmt) && sm->fils_ft_ies) {
+ struct wpa_ie_data rsn;
+
+ /* Check that PMKR1Name derived by the AP matches */
+ if (!elems.rsn_ie ||
+ wpa_parse_wpa_ie_rsn(elems.rsn_ie - 2, elems.rsn_ie_len + 2,
+ &rsn) < 0 ||
+ !rsn.pmkid || rsn.num_pmkid != 1 ||
+ os_memcmp(rsn.pmkid, sm->pmk_r1_name,
+ WPA_PMK_NAME_LEN) != 0) {
+ wpa_printf(MSG_DEBUG,
+ "FILS+FT: No RSNE[PMKR1Name] match in AssocResp");
+ goto fail;
+ }
+ }
+#endif /* CONFIG_IEEE80211R */
+
/* Key Delivery */
if (!elems.key_delivery) {
wpa_printf(MSG_DEBUG, "FILS: No Key Delivery element");
alg = wpa_cipher_to_alg(sm->pairwise_cipher);
keylen = wpa_cipher_key_len(sm->pairwise_cipher);
+ if (keylen <= 0 || (unsigned int) keylen != sm->ptk.tk_len) {
+ wpa_printf(MSG_DEBUG, "FILS: TK length mismatch: %u != %lu",
+ keylen, (long unsigned int) sm->ptk.tk_len);
+ goto fail;
+ }
rsclen = wpa_cipher_rsc_len(sm->pairwise_cipher);
wpa_hexdump_key(MSG_DEBUG, "FILS: Set TK to driver",
sm->ptk.tk, keylen);
* takes care of association frame encryption/decryption. */
/* TK is not needed anymore in supplicant */
os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN);
+ sm->ptk.tk_len = 0;
sm->ptk.installed = 1;
/* FILS HLP Container */
res = hmac_sha512_kdf(prk, hash_len, NULL, (const u8 *) info,
os_strlen(info), sm->pmk, hash_len);
os_memset(prk, 0, SHA512_MAC_LEN);
- if (res < 0)
+ if (res < 0) {
+ sm->pmk_len = 0;
return -1;
+ }
sm->pmk_len = hash_len;
wpa_hexdump_key(MSG_DEBUG, "OWE: PMK", sm->pmk, sm->pmk_len);
}
#endif /* CONFIG_FILS */
}
+
+
+#ifdef CONFIG_DPP2
+void wpa_sm_set_dpp_z(struct wpa_sm *sm, const struct wpabuf *z)
+{
+ if (sm) {
+ wpabuf_clear_free(sm->dpp_z);
+ sm->dpp_z = z ? wpabuf_dup(z) : NULL;
+ }
+}
+#endif /* CONFIG_DPP2 */
projects / thirdparty / hostap.git / blobdiff