/*
* IEEE 802.11 RSN / WPA Authenticator
- * Copyright (c) 2004-2013, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN ||
wpa_key_mgmt_suite_b(sm->wpa_key_mgmt) ||
version == WPA_KEY_INFO_TYPE_AES_128_CMAC) {
- if (aes_wrap(sm->PTK.kek, 16,
+ if (aes_wrap(sm->PTK.kek, sm->PTK.kek_len,
(key_data_len - 8) / 8, buf,
(u8 *) (key + 1))) {
os_free(hdr);
return;
}
WPA_PUT_BE16(key->key_data_length, key_data_len);
- } else {
+ } else if (sm->PTK.kek_len == 16) {
u8 ek[32];
os_memcpy(key->key_iv,
sm->group->Counter + WPA_NONCE_LEN - 16, 16);
inc_byte_array(sm->group->Counter, WPA_NONCE_LEN);
os_memcpy(ek, key->key_iv, 16);
- os_memcpy(ek + 16, sm->PTK.kek, 16);
+ os_memcpy(ek + 16, sm->PTK.kek, sm->PTK.kek_len);
os_memcpy(key + 1, buf, key_data_len);
rc4_skip(ek, 32, 256, (u8 *) (key + 1), key_data_len);
WPA_PUT_BE16(key->key_data_length, key_data_len);
+ } else {
+ os_free(hdr);
+ os_free(buf);
+ return;
}
os_free(buf);
}
os_free(hdr);
return;
}
- wpa_eapol_key_mic(sm->PTK.kck, sm->wpa_key_mgmt, version,
+ wpa_eapol_key_mic(sm->PTK.kck, sm->PTK.kck_len,
+ sm->wpa_key_mgmt, version,
(u8 *) hdr, len, key->key_mic);
#ifdef CONFIG_TESTING_OPTIONS
if (!pairwise &&
struct wpa_eapol_key *key;
u16 key_info;
int ret = 0;
- u8 mic[16];
+ u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
+ size_t mic_len = 16;
if (data_len < sizeof(*hdr) + sizeof(*key))
return -1;
hdr = (struct ieee802_1x_hdr *) data;
key = (struct wpa_eapol_key *) (hdr + 1);
key_info = WPA_GET_BE16(key->key_info);
- os_memcpy(mic, key->key_mic, 16);
- os_memset(key->key_mic, 0, 16);
- if (wpa_eapol_key_mic(PTK->kck, akmp, key_info & WPA_KEY_INFO_TYPE_MASK,
+ os_memcpy(mic, key->key_mic, mic_len);
+ os_memset(key->key_mic, 0, mic_len);
+ if (wpa_eapol_key_mic(PTK->kck, PTK->kck_len, akmp,
+ key_info & WPA_KEY_INFO_TYPE_MASK,
data, data_len, key->key_mic) ||
- os_memcmp_const(mic, key->key_mic, 16) != 0)
+ os_memcmp_const(mic, key->key_mic, mic_len) != 0)
ret = -1;
- os_memcpy(key->key_mic, mic, 16);
+ os_memcpy(key->key_mic, mic, mic_len);
return ret;
}
static int wpa_derive_ptk(struct wpa_state_machine *sm, const u8 *snonce,
const u8 *pmk, struct wpa_ptk *ptk)
{
- size_t ptk_len = wpa_cipher_key_len(sm->pairwise) + 32;
#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->wpa_key_mgmt))
- return wpa_auth_derive_ptk_ft(sm, pmk, ptk, ptk_len);
+ return wpa_auth_derive_ptk_ft(sm, pmk, ptk);
#endif /* CONFIG_IEEE80211R */
- wpa_pmk_to_ptk(pmk, PMK_LEN, "Pairwise key expansion",
- sm->wpa_auth->addr, sm->addr, sm->ANonce, snonce,
- (u8 *) ptk, ptk_len,
- wpa_key_mgmt_sha256(sm->wpa_key_mgmt));
-
- return 0;
+ return wpa_pmk_to_ptk(pmk, PMK_LEN, "Pairwise key expansion",
+ sm->wpa_auth->addr, sm->addr, sm->ANonce, snonce,
+ ptk, sm->wpa_key_mgmt, sm->pairwise);
}
enum wpa_alg alg = wpa_cipher_to_alg(sm->pairwise);
int klen = wpa_cipher_key_len(sm->pairwise);
if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0,
- sm->PTK.tk1, klen)) {
+ sm->PTK.tk, klen)) {
wpa_sta_disconnect(sm->wpa_auth, sm->addr);
return;
}
return -1;
if (pmksa_cache_auth_add(sm->wpa_auth->pmksa, pmk, PMK_LEN,
- sm->PTK.kck, sizeof(sm->PTK.kck),
+ sm->PTK.kck, sm->PTK.kck_len,
sm->wpa_auth->addr, sm->addr, session_timeout,
eapol, sm->wpa_key_mgmt))
return 0;
/*
* hostapd - IEEE 802.11r - Fast BSS Transition
- * Copyright (c) 2004-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
- struct wpa_ptk *ptk, size_t ptk_len)
+ struct wpa_ptk *ptk)
{
u8 pmk_r0[PMK_LEN], pmk_r0_name[WPA_PMK_NAME_LEN];
u8 pmk_r1[PMK_LEN];
const u8 *ssid = sm->wpa_auth->conf.ssid;
size_t ssid_len = sm->wpa_auth->conf.ssid_len;
-
if (sm->xxkey_len == 0) {
wpa_printf(MSG_DEBUG, "FT: XXKey not available for key "
"derivation");
wpa_ft_store_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1, sm->pmk_r1_name,
sm->pairwise);
- wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
- sm->wpa_auth->addr, sm->pmk_r1_name,
- (u8 *) ptk, ptk_len, ptk_name);
- wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, ptk_len);
- wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
-
- return 0;
+ return wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
+ sm->wpa_auth->addr, sm->pmk_r1_name,
+ ptk, ptk_name, sm->wpa_key_mgmt, sm->pairwise);
}
WPA_PUT_LE16(&subelem[2], gsm->GN & 0x03);
subelem[4] = gsm->GTK_len;
wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, subelem + 5);
- if (aes_wrap(sm->PTK.kek, 16, key_len / 8, key, subelem + 13)) {
+ if (aes_wrap(sm->PTK.kek, sm->PTK.kek_len, key_len / 8, key,
+ subelem + 13)) {
os_free(subelem);
return NULL;
}
wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, pos);
pos += 6;
*pos++ = WPA_IGTK_LEN;
- if (aes_wrap(sm->PTK.kek, 16, WPA_IGTK_LEN / 8,
+ if (aes_wrap(sm->PTK.kek, sm->PTK.kek_len, WPA_IGTK_LEN / 8,
gsm->IGTK[gsm->GN_igtk - 4], pos)) {
os_free(subelem);
return NULL;
ric_start = NULL;
if (auth_alg == WLAN_AUTH_FT &&
- wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 6,
+ wpa_ft_mic(sm->PTK.kck, sm->PTK.kck_len, sm->addr,
+ sm->wpa_auth->addr, 6,
mdie, mdie_len, ftie, ftie_len,
rsnie, rsnie_len,
ric_start, ric_start ? pos - ric_start : 0,
* optimized by adding the STA entry earlier.
*/
if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0,
- sm->PTK.tk1, klen))
+ sm->PTK.tk, klen))
return;
/* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */
u8 ptk_name[WPA_PMK_NAME_LEN];
struct wpa_auth_config *conf;
struct wpa_ft_ies parse;
- size_t buflen, ptk_len;
+ size_t buflen;
int ret;
u8 *pos, *end;
int pairwise;
wpa_hexdump(MSG_DEBUG, "FT: Generated ANonce",
sm->ANonce, WPA_NONCE_LEN);
- ptk_len = pairwise == WPA_CIPHER_TKIP ? 64 : 48;
- wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
- sm->wpa_auth->addr, pmk_r1_name,
- (u8 *) &sm->PTK, ptk_len, ptk_name);
- wpa_hexdump_key(MSG_DEBUG, "FT: PTK",
- (u8 *) &sm->PTK, ptk_len);
- wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
+ if (wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
+ sm->wpa_auth->addr, pmk_r1_name,
+ &sm->PTK, ptk_name, sm->wpa_key_mgmt,
+ pairwise) < 0)
+ return WLAN_STATUS_UNSPECIFIED_FAILURE;
sm->pairwise = pairwise;
sm->PTK_valid = TRUE;
struct wpa_ft_ies parse;
struct rsn_mdie *mdie;
struct rsn_ftie *ftie;
- u8 mic[16];
+ u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
+ size_t mic_len = 16;
unsigned int count;
if (sm == NULL)
return -1;
}
- if (wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 5,
+ if (wpa_ft_mic(sm->PTK.kck, sm->PTK.kck_len, sm->addr,
+ sm->wpa_auth->addr, 5,
parse.mdie - 2, parse.mdie_len + 2,
parse.ftie - 2, parse.ftie_len + 2,
parse.rsn - 2, parse.rsn_len + 2,
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
- if (os_memcmp_const(mic, ftie->mic, 16) != 0) {
+ if (os_memcmp_const(mic, ftie->mic, mic_len) != 0) {
wpa_printf(MSG_DEBUG, "FT: Invalid MIC in FTIE");
wpa_printf(MSG_DEBUG, "FT: addr=" MACSTR " auth_addr=" MACSTR,
MAC2STR(sm->addr), MAC2STR(sm->wpa_auth->addr));
- wpa_hexdump(MSG_MSGDUMP, "FT: Received MIC", ftie->mic, 16);
- wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, 16);
+ wpa_hexdump(MSG_MSGDUMP, "FT: Received MIC",
+ ftie->mic, mic_len);
+ wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, mic_len);
wpa_hexdump(MSG_MSGDUMP, "FT: MDIE",
parse.mdie - 2, parse.mdie_len + 2);
wpa_hexdump(MSG_MSGDUMP, "FT: FTIE",
/*
* hostapd - IEEE 802.11i-2004 / WPA Authenticator: Internal definitions
- * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
u8 *buf, size_t len, const u8 *subelem,
size_t subelem_len);
int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
- struct wpa_ptk *ptk, size_t ptk_len);
+ struct wpa_ptk *ptk);
struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void);
void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache);
void wpa_ft_install_ptk(struct wpa_state_machine *sm);
/*
* WPA/RSN - Shared functions for supplicant and authenticator
- * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#include "wpa_common.h"
+static unsigned int wpa_kck_len(int akmp)
+{
+ return 16;
+}
+
+
+static unsigned int wpa_kek_len(int akmp)
+{
+ return 16;
+}
+
+
/**
* wpa_eapol_key_mic - Calculate EAPOL-Key MIC
* @key: EAPOL-Key Key Confirmation Key (KCK)
+ * @key_len: KCK length in octets
* @akmp: WPA_KEY_MGMT_* used in key derivation
* @ver: Key descriptor version (WPA_KEY_INFO_TYPE_*)
* @buf: Pointer to the beginning of the EAPOL header (version field)
* happened during final editing of the standard and the correct behavior is
* defined in the last draft (IEEE 802.11i/D10).
*/
-int wpa_eapol_key_mic(const u8 *key, int akmp, int ver, const u8 *buf,
- size_t len, u8 *mic)
+int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver,
+ const u8 *buf, size_t len, u8 *mic)
{
u8 hash[SHA256_MAC_LEN];
switch (ver) {
#ifndef CONFIG_FIPS
case WPA_KEY_INFO_TYPE_HMAC_MD5_RC4:
- return hmac_md5(key, 16, buf, len, mic);
+ return hmac_md5(key, key_len, buf, len, mic);
#endif /* CONFIG_FIPS */
case WPA_KEY_INFO_TYPE_HMAC_SHA1_AES:
- if (hmac_sha1(key, 16, buf, len, hash))
+ if (hmac_sha1(key, key_len, buf, len, hash))
return -1;
os_memcpy(mic, hash, MD5_MAC_LEN);
break;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_SUITEB
case WPA_KEY_MGMT_IEEE8021X_SUITE_B:
- if (hmac_sha256(key, 16, buf, len, hash))
+ if (hmac_sha256(key, key_len, buf, len, hash))
return -1;
os_memcpy(mic, hash, MD5_MAC_LEN);
break;
* @nonce1: ANonce or SNonce
* @nonce2: SNonce or ANonce
* @ptk: Buffer for pairwise transient key
- * @ptk_len: Length of PTK
- * @use_sha256: Whether to use SHA256-based KDF
+ * @akmp: Negotiated AKM
+ * @cipher: Negotiated pairwise cipher
+ * Returns: 0 on success, -1 on failure
*
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
* PTK = PRF-X(PMK, "Pairwise key expansion",
* Min(MAC_I, MAC_P) || Max(MAC_I, MAC_P) ||
* Min(INonce, PNonce) || Max(INonce, PNonce))
*/
-void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
- const u8 *addr1, const u8 *addr2,
- const u8 *nonce1, const u8 *nonce2,
- u8 *ptk, size_t ptk_len, int use_sha256)
+int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
+ const u8 *addr1, const u8 *addr2,
+ const u8 *nonce1, const u8 *nonce2,
+ struct wpa_ptk *ptk, int akmp, int cipher)
{
u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];
+ u8 tmp[WPA_KCK_MAX_LEN + WPA_KEK_MAX_LEN + WPA_TK_MAX_LEN];
+ size_t ptk_len;
if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
os_memcpy(data, addr1, ETH_ALEN);
WPA_NONCE_LEN);
}
+ ptk->kck_len = wpa_kck_len(akmp);
+ ptk->kek_len = wpa_kek_len(akmp);
+ ptk->tk_len = wpa_cipher_key_len(cipher);
+ ptk_len = ptk->kck_len + ptk->kek_len + ptk->tk_len;
+
#ifdef CONFIG_IEEE80211W
- if (use_sha256)
+ if (wpa_key_mgmt_sha256(akmp))
sha256_prf(pmk, pmk_len, label, data, sizeof(data),
- ptk, ptk_len);
+ tmp, ptk_len);
else
#endif /* CONFIG_IEEE80211W */
- sha1_prf(pmk, pmk_len, label, data, sizeof(data), ptk,
- ptk_len);
+ sha1_prf(pmk, pmk_len, label, data, sizeof(data), tmp, ptk_len);
wpa_printf(MSG_DEBUG, "WPA: PTK derivation - A1=" MACSTR " A2=" MACSTR,
MAC2STR(addr1), MAC2STR(addr2));
wpa_hexdump(MSG_DEBUG, "WPA: Nonce1", nonce1, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "WPA: Nonce2", nonce2, WPA_NONCE_LEN);
wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
- wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", ptk, ptk_len);
+ wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", tmp, ptk_len);
+
+ os_memcpy(ptk->kck, tmp, ptk->kck_len);
+ wpa_hexdump_key(MSG_DEBUG, "WPA: KCK", ptk->kck, ptk->kck_len);
+
+ os_memcpy(ptk->kek, tmp + ptk->kck_len, ptk->kek_len);
+ wpa_hexdump_key(MSG_DEBUG, "WPA: KEK", ptk->kek, ptk->kek_len);
+
+ os_memcpy(ptk->tk, tmp + ptk->kck_len + ptk->kek_len, ptk->tk_len);
+ wpa_hexdump_key(MSG_DEBUG, "WPA: TK", ptk->tk, ptk->tk_len);
+
+ os_memset(tmp, 0, sizeof(tmp));
+ return 0;
}
#ifdef CONFIG_IEEE80211R
-int wpa_ft_mic(const u8 *kck, const u8 *sta_addr, const u8 *ap_addr,
- u8 transaction_seqnum, const u8 *mdie, size_t mdie_len,
+int wpa_ft_mic(const u8 *kck, size_t kck_len, const u8 *sta_addr,
+ const u8 *ap_addr, u8 transaction_seqnum,
+ const u8 *mdie, size_t mdie_len,
const u8 *ftie, size_t ftie_len,
const u8 *rsnie, size_t rsnie_len,
const u8 *ric, size_t ric_len, u8 *mic)
u8 *buf, *pos;
size_t buf_len;
+ if (kck_len != 16) {
+ wpa_printf(MSG_WARNING, "FT: Unsupported KCK length %u",
+ (unsigned int) kck_len);
+ return -1;
+ }
+
buf_len = 2 * ETH_ALEN + 1 + mdie_len + ftie_len + rsnie_len + ric_len;
buf = os_malloc(buf_len);
if (buf == NULL)
*
* IEEE Std 802.11r-2008 - 8.5.1.5.5
*/
-void wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
- const u8 *sta_addr, const u8 *bssid,
- const u8 *pmk_r1_name,
- u8 *ptk, size_t ptk_len, u8 *ptk_name)
+int wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
+ const u8 *sta_addr, const u8 *bssid,
+ const u8 *pmk_r1_name,
+ struct wpa_ptk *ptk, u8 *ptk_name, int akmp, int cipher)
{
u8 buf[2 * WPA_NONCE_LEN + 2 * ETH_ALEN];
u8 *pos, hash[32];
const u8 *addr[6];
size_t len[6];
+ u8 tmp[WPA_KCK_MAX_LEN + WPA_KEK_MAX_LEN + WPA_TK_MAX_LEN];
+ size_t ptk_len;
/*
* PTK = KDF-PTKLen(PMK-R1, "FT-PTK", SNonce || ANonce ||
os_memcpy(pos, sta_addr, ETH_ALEN);
pos += ETH_ALEN;
- sha256_prf(pmk_r1, PMK_LEN, "FT-PTK", buf, pos - buf, ptk, ptk_len);
+ ptk->kck_len = wpa_kck_len(akmp);
+ ptk->kek_len = wpa_kek_len(akmp);
+ ptk->tk_len = wpa_cipher_key_len(cipher);
+ ptk_len = ptk->kck_len + ptk->kek_len + ptk->tk_len;
+
+ sha256_prf(pmk_r1, PMK_LEN, "FT-PTK", buf, pos - buf, tmp, ptk_len);
/*
* PTKName = Truncate-128(SHA-256(PMKR1Name || "FT-PTKN" || SNonce ||
sha256_vector(6, addr, len, hash);
os_memcpy(ptk_name, hash, WPA_PMK_NAME_LEN);
+
+ os_memcpy(ptk->kck, tmp, ptk->kck_len);
+ os_memcpy(ptk->kek, tmp + ptk->kck_len, ptk->kek_len);
+ os_memcpy(ptk->tk, tmp + ptk->kck_len + ptk->kek_len, ptk->tk_len);
+
+ wpa_hexdump_key(MSG_DEBUG, "FT: KCK", ptk->kck, ptk->kck_len);
+ wpa_hexdump_key(MSG_DEBUG, "FT: KEK", ptk->kek, ptk->kek_len);
+ wpa_hexdump_key(MSG_DEBUG, "FT: TK", ptk->tk, ptk->tk_len);
+ wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
+
+ os_memset(tmp, 0, sizeof(tmp));
+
+ return 0;
}
#endif /* CONFIG_IEEE80211R */
/*
* WPA definitions shared between hostapd and wpa_supplicant
- * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
/* followed by key_data_length bytes of key_data */
} STRUCT_PACKED;
+#define WPA_EAPOL_KEY_MIC_MAX_LEN 16
+#define WPA_KCK_MAX_LEN 16
+#define WPA_KEK_MAX_LEN 16
+#define WPA_TK_MAX_LEN 32
+
/**
* struct wpa_ptk - WPA Pairwise Transient Key
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
*/
struct wpa_ptk {
- u8 kck[16]; /* EAPOL-Key Key Confirmation Key (KCK) */
- u8 kek[16]; /* EAPOL-Key Key Encryption Key (KEK) */
- u8 tk1[16]; /* Temporal Key 1 (TK1) */
- union {
- u8 tk2[16]; /* Temporal Key 2 (TK2) */
- struct {
- u8 tx_mic_key[8];
- u8 rx_mic_key[8];
- } auth;
- } u;
-} STRUCT_PACKED;
+ u8 kck[WPA_KCK_MAX_LEN]; /* EAPOL-Key Key Confirmation Key (KCK) */
+ u8 kek[WPA_KEK_MAX_LEN]; /* EAPOL-Key Key Encryption Key (KEK) */
+ u8 tk[WPA_TK_MAX_LEN]; /* Temporal Key (TK) */
+ size_t kck_len;
+ size_t kek_len;
+ size_t tk_len;
+};
/* WPA IE version 1
#endif /* _MSC_VER */
-int wpa_eapol_key_mic(const u8 *key, int akmp, int ver, const u8 *buf,
- size_t len, u8 *mic);
-void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
- const u8 *addr1, const u8 *addr2,
- const u8 *nonce1, const u8 *nonce2,
- u8 *ptk, size_t ptk_len, int use_sha256);
+int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver,
+ const u8 *buf, size_t len, u8 *mic);
+int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
+ const u8 *addr1, const u8 *addr2,
+ const u8 *nonce1, const u8 *nonce2,
+ struct wpa_ptk *ptk, int akmp, int cipher);
#ifdef CONFIG_IEEE80211R
-int wpa_ft_mic(const u8 *kck, const u8 *sta_addr, const u8 *ap_addr,
- u8 transaction_seqnum, const u8 *mdie, size_t mdie_len,
+int wpa_ft_mic(const u8 *kck, size_t kck_len, const u8 *sta_addr,
+ const u8 *ap_addr, u8 transaction_seqnum,
+ const u8 *mdie, size_t mdie_len,
const u8 *ftie, size_t ftie_len,
const u8 *rsnie, size_t rsnie_len,
const u8 *ric, size_t ric_len, u8 *mic);
void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name,
const u8 *r1kh_id, const u8 *s1kh_id,
u8 *pmk_r1, u8 *pmk_r1_name);
-void wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
- const u8 *sta_addr, const u8 *bssid,
- const u8 *pmk_r1_name,
- u8 *ptk, size_t ptk_len, u8 *ptk_name);
+int wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
+ const u8 *sta_addr, const u8 *bssid,
+ const u8 *pmk_r1_name,
+ struct wpa_ptk *ptk, u8 *ptk_name, int akmp, int cipher);
#endif /* CONFIG_IEEE80211R */
struct wpa_ie_data {
/*
* Driver interface definition
- * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
* set_rekey_info - Set rekey information
* @priv: Private driver interface data
* @kek: Current KEK
+ * @kek_len: KEK length in octets
* @kck: Current KCK
+ * @kck_len: KCK length in octets
* @replay_ctr: Current EAPOL-Key Replay Counter
*
* This optional function can be used to provide information for the
* driver/firmware to process EAPOL-Key frames in Group Key Handshake
* while the host (including wpa_supplicant) is sleeping.
*/
- void (*set_rekey_info)(void *priv, const u8 *kek, const u8 *kck,
+ void (*set_rekey_info)(void *priv, const u8 *kek, size_t kek_len,
+ const u8 *kck, size_t kck_len,
const u8 *replay_ctr);
/**
/*
* Driver interaction with Linux nl80211/cfg80211
- * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
* Copyright (c) 2003-2004, Instant802 Networks, Inc.
* Copyright (c) 2005-2006, Devicescape Software, Inc.
* Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
}
-static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
+static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len,
+ const u8 *kck, size_t kck_len,
const u8 *replay_ctr)
{
struct i802_bss *bss = priv;
wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload");
if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) ||
!(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) ||
- nla_put(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek) ||
- nla_put(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck) ||
+ nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) ||
+ nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck) ||
nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
replay_ctr)) {
nl80211_nlmsg_clear(msg);
/*
* WPA Supplicant - PeerKey for Direct Link Setup (DLS)
- * Copyright (c) 2006-2008, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2006-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
"(mui %d error_type %d)", mui, error_type);
}
- wpa_eapol_key_send(sm, sm->ptk.kck, ver, dst, ETH_P_EAPOL,
- rbuf, rlen, err->key_mic);
+ wpa_eapol_key_send(sm, sm->ptk.kck, sm->ptk.kck_len, ver, dst,
+ ETH_P_EAPOL, rbuf, rlen, err->key_mic);
return 0;
}
wpa_add_kde(pos, RSN_KEY_DATA_NONCE, peerkey->inonce, WPA_NONCE_LEN);
wpa_printf(MSG_DEBUG, "RSN: Sending EAPOL-Key SMK M3");
- wpa_eapol_key_send(sm, sm->ptk.kck, ver, src_addr, ETH_P_EAPOL,
- rbuf, rlen, reply->key_mic);
+ wpa_eapol_key_send(sm, sm->ptk.kck, sm->ptk.kck_len, ver, src_addr,
+ ETH_P_EAPOL, rbuf, rlen, reply->key_mic);
return 0;
}
os_memcpy(peerkey->rsnie_i, kde.rsn_ie, kde.rsn_ie_len);
peerkey->rsnie_i_len = kde.rsn_ie_len;
peerkey->cipher = cipher;
-#ifdef CONFIG_IEEE80211W
- if (ie.key_mgmt & (WPA_KEY_MGMT_IEEE8021X_SHA256 |
- WPA_KEY_MGMT_PSK_SHA256 |
- WPA_KEY_MGMT_IEEE8021X_SUITE_B))
- peerkey->use_sha256 = 1;
-#endif /* CONFIG_IEEE80211W */
+ peerkey->akmp = ie.key_mgmt;
if (random_get_bytes(peerkey->pnonce, WPA_NONCE_LEN)) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
* @mac_p: Peer MAC address
* @inonce: Initiator Nonce
* @mac_i: Initiator MAC address
- * @use_sha256: Whether to use SHA256-based KDF
+ * @akmp: Negotiated AKM
*
* 8.5.1.4 Station to station (STK) key hierarchy
* SMKID = HMAC-SHA1-128(SMK, "SMK Name" || PNonce || MAC_P || INonce || MAC_I)
*/
static void rsn_smkid(const u8 *smk, const u8 *pnonce, const u8 *mac_p,
const u8 *inonce, const u8 *mac_i, u8 *smkid,
- int use_sha256)
+ int akmp)
{
char *title = "SMK Name";
const u8 *addr[5];
addr[4] = mac_i;
#ifdef CONFIG_IEEE80211W
- if (use_sha256)
+ if (wpa_key_mgmt_sha256(akmp))
hmac_sha256_vector(smk, PMK_LEN, 5, addr, len, hash);
else
#endif /* CONFIG_IEEE80211W */
wpa_printf(MSG_DEBUG, "RSN: Sending EAPOL-Key STK 1/4 to " MACSTR,
MAC2STR(peerkey->addr));
- wpa_eapol_key_send(sm, NULL, ver, peerkey->addr, ETH_P_EAPOL,
+ wpa_eapol_key_send(sm, NULL, 0, ver, peerkey->addr, ETH_P_EAPOL,
mbuf, mlen, NULL);
}
wpa_printf(MSG_DEBUG, "RSN: Sending EAPOL-Key STK 3/4 to " MACSTR,
MAC2STR(peerkey->addr));
- wpa_eapol_key_send(sm, peerkey->stk.kck, ver, peerkey->addr,
- ETH_P_EAPOL, mbuf, mlen, msg->key_mic);
+ wpa_eapol_key_send(sm, peerkey->stk.kck, peerkey->stk.kck_len, ver,
+ peerkey->addr, ETH_P_EAPOL, mbuf, mlen,
+ msg->key_mic);
}
if (peerkey->initiator) {
rsn_smkid(peerkey->smk, peerkey->pnonce, peerkey->addr,
peerkey->inonce, sm->own_addr, peerkey->smkid,
- peerkey->use_sha256);
+ peerkey->akmp);
wpa_supplicant_send_stk_1_of_4(sm, peerkey);
} else {
rsn_smkid(peerkey->smk, peerkey->pnonce, sm->own_addr,
peerkey->inonce, peerkey->addr, peerkey->smkid,
- peerkey->use_sha256);
+ peerkey->akmp);
}
wpa_hexdump(MSG_DEBUG, "RSN: SMKID", peerkey->smkid, PMKID_LEN);
wpa_pmk_to_ptk(peerkey->smk, PMK_LEN, "Peer key expansion",
sm->own_addr, peerkey->addr,
peerkey->pnonce, key->key_nonce,
- (u8 *) stk, sizeof(*stk),
- peerkey->use_sha256);
+ stk, peerkey->akmp, peerkey->cipher);
/* Supplicant: swap tx/rx Mic keys */
- os_memcpy(buf, stk->u.auth.tx_mic_key, 8);
- os_memcpy(stk->u.auth.tx_mic_key, stk->u.auth.rx_mic_key, 8);
- os_memcpy(stk->u.auth.rx_mic_key, buf, 8);
+ os_memcpy(buf, &stk->tk[16], 8);
+ os_memcpy(&stk->tk[16], &stk->tk[24], 8);
+ os_memcpy(&stk->tk[24], buf, 8);
peerkey->tstk_set = 1;
kde_buf_len = peerkey->rsnie_p_len +
&peerkey->stk))
return;
- _key = (u8 *) peerkey->stk.tk1;
+ _key = peerkey->stk.tk;
if (peerkey->cipher == WPA_CIPHER_TKIP) {
/* Swap Tx/Rx keys for Michael MIC */
os_memcpy(key_buf, _key, 16);
- os_memcpy(key_buf + 16, peerkey->stk.u.auth.rx_mic_key, 8);
- os_memcpy(key_buf + 24, peerkey->stk.u.auth.tx_mic_key, 8);
+ os_memcpy(key_buf + 16, _key + 24, 8);
+ os_memcpy(key_buf + 24, _key + 16, 8);
_key = key_buf;
key_len = 32;
} else
os_memset(rsc, 0, 6);
if (wpa_sm_set_key(sm, peerkey->cipher, peerkey->addr, 0, 1,
rsc, sizeof(rsc), _key, key_len) < 0) {
+ os_memset(key_buf, 0, sizeof(key_buf));
wpa_printf(MSG_WARNING, "RSN: Failed to set STK to the "
"driver.");
return;
}
+ os_memset(key_buf, 0, sizeof(key_buf));
}
os_memset(rsc, 0, 6);
if (wpa_sm_set_key(sm, peerkey->cipher, peerkey->addr, 0, 1,
- rsc, sizeof(rsc), (u8 *) peerkey->stk.tk1,
+ rsc, sizeof(rsc), peerkey->stk.tk,
peerkey->cipher == WPA_CIPHER_TKIP ? 32 : 16) < 0) {
wpa_printf(MSG_WARNING, "RSN: Failed to set STK to the "
"driver.");
struct wpa_eapol_key *key, u16 ver,
const u8 *buf, size_t len)
{
- u8 mic[16];
+ u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
+ size_t mic_len = 16;
int ok = 0;
if (peerkey->initiator && !peerkey->stk_set) {
wpa_pmk_to_ptk(peerkey->smk, PMK_LEN, "Peer key expansion",
sm->own_addr, peerkey->addr,
peerkey->inonce, key->key_nonce,
- (u8 *) &peerkey->stk, sizeof(peerkey->stk),
- peerkey->use_sha256);
+ &peerkey->stk, peerkey->akmp, peerkey->cipher);
peerkey->stk_set = 1;
}
- os_memcpy(mic, key->key_mic, 16);
+ os_memcpy(mic, key->key_mic, mic_len);
if (peerkey->tstk_set) {
- os_memset(key->key_mic, 0, 16);
- wpa_eapol_key_mic(peerkey->tstk.kck, sm->key_mgmt, ver, buf,
- len, key->key_mic);
- if (os_memcmp_const(mic, key->key_mic, 16) != 0) {
+ os_memset(key->key_mic, 0, mic_len);
+ wpa_eapol_key_mic(peerkey->tstk.kck, peerkey->tstk.kck_len,
+ sm->key_mgmt, ver, buf, len, key->key_mic);
+ if (os_memcmp_const(mic, key->key_mic, mic_len) != 0) {
wpa_printf(MSG_WARNING, "RSN: Invalid EAPOL-Key MIC "
"when using TSTK - ignoring TSTK");
} else {
peerkey->stk_set = 1;
os_memcpy(&peerkey->stk, &peerkey->tstk,
sizeof(peerkey->stk));
+ os_memset(&peerkey->tstk, 0, sizeof(peerkey->tstk));
}
}
if (!ok && peerkey->stk_set) {
- os_memset(key->key_mic, 0, 16);
- wpa_eapol_key_mic(peerkey->stk.kck, sm->key_mgmt, ver, buf, len,
- key->key_mic);
- if (os_memcmp_const(mic, key->key_mic, 16) != 0) {
+ os_memset(key->key_mic, 0, mic_len);
+ wpa_eapol_key_mic(peerkey->stk.kck, peerkey->stk.kck_len,
+ sm->key_mgmt, ver, buf, len, key->key_mic);
+ if (os_memcmp_const(mic, key->key_mic, mic_len) != 0) {
wpa_printf(MSG_WARNING, "RSN: Invalid EAPOL-Key MIC "
"- dropping packet");
return -1;
return -1;
peerkey->initiator = 1;
os_memcpy(peerkey->addr, peer, ETH_ALEN);
-#ifdef CONFIG_IEEE80211W
- if (wpa_key_mgmt_sha256(sm->key_mgmt))
- peerkey->use_sha256 = 1;
-#endif /* CONFIG_IEEE80211W */
+ peerkey->akmp = sm->key_mgmt;
/* SMK M1:
* EAPOL-Key(S=1, M=1, A=0, I=0, K=0, SM=1, KeyRSC=0, Nonce=INonce,
wpa_printf(MSG_INFO, "RSN: Sending EAPOL-Key SMK M1 Request (peer "
MACSTR ")", MAC2STR(peer));
- wpa_eapol_key_send(sm, sm->ptk.kck, ver, bssid, ETH_P_EAPOL,
- rbuf, rlen, req->key_mic);
+ wpa_eapol_key_send(sm, sm->ptk.kck, sm->ptk.kck_len, ver, bssid,
+ ETH_P_EAPOL, rbuf, rlen, req->key_mic);
peerkey->next = sm->peerkey;
sm->peerkey = peerkey;
/*
* WPA Supplicant - PeerKey for Direct Link Setup (DLS)
- * Copyright (c) 2006-2008, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2006-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
int cipher; /* Selected cipher (WPA_CIPHER_*) */
u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
int replay_counter_set;
- int use_sha256; /* whether AKMP indicate SHA256-based derivations */
+ int akmp;
struct wpa_ptk stk, tstk;
int stk_set, tstk_set;
/*
* WPA Supplicant - WPA state machine and EAPOL-Key processing
- * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
* wpa_eapol_key_send - Send WPA/RSN EAPOL-Key message
* @sm: Pointer to WPA state machine data from wpa_sm_init()
* @kck: Key Confirmation Key (KCK, part of PTK)
+ * @kck_len: KCK length in octets
* @ver: Version field from Key Info
* @dest: Destination address for the frame
* @proto: Ethertype (usually ETH_P_EAPOL)
* @msg_len: Length of message
* @key_mic: Pointer to the buffer to which the EAPOL-Key MIC is written
*/
-void wpa_eapol_key_send(struct wpa_sm *sm, const u8 *kck,
+void wpa_eapol_key_send(struct wpa_sm *sm, const u8 *kck, size_t kck_len,
int ver, const u8 *dest, u16 proto,
u8 *msg, size_t msg_len, u8 *key_mic)
{
+ size_t mic_len = 16;
+
if (is_zero_ether_addr(dest) && is_zero_ether_addr(sm->bssid)) {
/*
* Association event was not yet received; try to fetch
}
}
if (key_mic &&
- wpa_eapol_key_mic(kck, sm->key_mgmt, ver, msg, msg_len, key_mic)) {
+ wpa_eapol_key_mic(kck, kck_len, sm->key_mgmt, ver, msg, msg_len,
+ key_mic)) {
wpa_msg(sm->ctx->msg_ctx, MSG_ERROR,
"WPA: Failed to generate EAPOL-Key version %d key_mgmt 0x%x MIC",
ver, sm->key_mgmt);
goto out;
}
- wpa_hexdump_key(MSG_DEBUG, "WPA: KCK", kck, 16);
- wpa_hexdump(MSG_DEBUG, "WPA: Derived Key MIC", key_mic, 16);
+ wpa_hexdump_key(MSG_DEBUG, "WPA: KCK", kck, kck_len);
+ wpa_hexdump(MSG_DEBUG, "WPA: Derived Key MIC", key_mic, mic_len);
wpa_hexdump(MSG_MSGDUMP, "WPA: TX EAPOL-Key", msg, msg_len);
wpa_sm_ether_send(sm, dest, proto, msg, msg_len);
eapol_sm_notify_tx_eapol_key(sm->eapol);
"WPA: Sending EAPOL-Key Request (error=%d "
"pairwise=%d ptk_set=%d len=%lu)",
error, pairwise, sm->ptk_set, (unsigned long) rlen);
- wpa_eapol_key_send(sm, sm->ptk.kck, ver, bssid, ETH_P_EAPOL,
- rbuf, rlen, key_info & WPA_KEY_INFO_MIC ?
- reply->key_mic : NULL);
+ wpa_eapol_key_send(sm, sm->ptk.kck, sm->ptk.kck_len, ver, bssid,
+ ETH_P_EAPOL, rbuf, rlen,
+ key_info & WPA_KEY_INFO_MIC ? reply->key_mic : NULL);
}
os_memcpy(reply->key_nonce, nonce, WPA_NONCE_LEN);
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Sending EAPOL-Key 2/4");
- wpa_eapol_key_send(sm, ptk->kck, ver, dst, ETH_P_EAPOL,
+ wpa_eapol_key_send(sm, ptk->kck, ptk->kck_len, ver, dst, ETH_P_EAPOL,
rbuf, rlen, reply->key_mic);
return 0;
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 struct wpa_eapol_key *key, struct wpa_ptk *ptk)
{
- size_t ptk_len = wpa_cipher_key_len(sm->pairwise_cipher) + 32;
#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->key_mgmt))
- return wpa_derive_ptk_ft(sm, src_addr, key, ptk, ptk_len);
+ return wpa_derive_ptk_ft(sm, src_addr, key, ptk);
#endif /* CONFIG_IEEE80211R */
- wpa_pmk_to_ptk(sm->pmk, sm->pmk_len, "Pairwise key expansion",
- sm->own_addr, sm->bssid, sm->snonce, key->key_nonce,
- (u8 *) ptk, ptk_len,
- wpa_key_mgmt_sha256(sm->key_mgmt));
- return 0;
+ 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);
}
if (sm->pairwise_cipher == WPA_CIPHER_TKIP) {
u8 buf[8];
/* Supplicant: swap tx/rx Mic keys */
- os_memcpy(buf, ptk->u.auth.tx_mic_key, 8);
- os_memcpy(ptk->u.auth.tx_mic_key, ptk->u.auth.rx_mic_key, 8);
- os_memcpy(ptk->u.auth.rx_mic_key, buf, 8);
+ os_memcpy(buf, &ptk->tk[16], 8);
+ os_memcpy(&ptk->tk[16], &ptk->tk[24], 8);
+ os_memcpy(&ptk->tk[24], buf, 8);
os_memset(buf, 0, sizeof(buf));
}
sm->tptk_set = 1;
}
if (wpa_sm_set_key(sm, alg, sm->bssid, 0, 1, key_rsc, rsclen,
- (u8 *) sm->ptk.tk1, keylen) < 0) {
+ sm->ptk.tk, keylen) < 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Failed to set PTK to the "
"driver (alg=%d keylen=%d bssid=" MACSTR ")",
}
/* TK is not needed anymore in supplicant */
- os_memset(sm->ptk.tk1, 0, sizeof(sm->ptk.tk1));
- os_memset(sm->ptk.u.tk2, 0, sizeof(sm->ptk.u.tk2));
+ os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN);
if (sm->wpa_ptk_rekey) {
eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL);
WPA_PUT_BE16(reply->key_data_length, 0);
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Sending EAPOL-Key 4/4");
- wpa_eapol_key_send(sm, ptk->kck, ver, dst, ETH_P_EAPOL,
+ wpa_eapol_key_send(sm, ptk->kck, ptk->kck_len, ver, dst, ETH_P_EAPOL,
rbuf, rlen, reply->key_mic);
return 0;
struct rsn_pmksa_cache_entry *sa;
sa = pmksa_cache_add(sm->pmksa, sm->pmk, sm->pmk_len,
- sm->ptk.kck, sizeof(sm->ptk.kck),
+ sm->ptk.kck, sm->ptk.kck_len,
sm->bssid, sm->own_addr,
sm->network_ctx, sm->key_mgmt);
if (!sm->cur_pmksa)
gd->gtk_len = gtk_len;
gd->keyidx = (key_info & WPA_KEY_INFO_KEY_INDEX_MASK) >>
WPA_KEY_INFO_KEY_INDEX_SHIFT;
- if (ver == WPA_KEY_INFO_TYPE_HMAC_MD5_RC4) {
+ if (ver == WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 && sm->ptk.kek_len == 16) {
u8 ek[32];
if (key_data_len > sizeof(gd->gtk)) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
return -1;
}
os_memcpy(ek, key->key_iv, 16);
- os_memcpy(ek + 16, sm->ptk.kek, 16);
+ os_memcpy(ek + 16, sm->ptk.kek, sm->ptk.kek_len);
os_memcpy(gd->gtk, key_data, key_data_len);
if (rc4_skip(ek, 32, 256, gd->gtk, key_data_len)) {
os_memset(ek, 0, sizeof(ek));
(unsigned long) maxkeylen);
return -1;
}
- if (aes_unwrap(sm->ptk.kek, 16, maxkeylen / 8, key_data,
- gd->gtk)) {
+ if (aes_unwrap(sm->ptk.kek, sm->ptk.kek_len, maxkeylen / 8,
+ key_data, gd->gtk)) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: AES unwrap failed - could not decrypt "
"GTK");
WPA_PUT_BE16(reply->key_data_length, 0);
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Sending EAPOL-Key 2/2");
- wpa_eapol_key_send(sm, sm->ptk.kck, ver, sm->bssid, ETH_P_EAPOL,
- rbuf, rlen, reply->key_mic);
+ wpa_eapol_key_send(sm, sm->ptk.kck, sm->ptk.kck_len, ver, sm->bssid,
+ ETH_P_EAPOL, rbuf, rlen, reply->key_mic);
return 0;
}
u16 ver,
const u8 *buf, size_t len)
{
- u8 mic[16];
+ u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
int ok = 0;
+ size_t mic_len = 16;
- os_memcpy(mic, key->key_mic, 16);
+ os_memcpy(mic, key->key_mic, mic_len);
if (sm->tptk_set) {
- os_memset(key->key_mic, 0, 16);
- wpa_eapol_key_mic(sm->tptk.kck, sm->key_mgmt, ver, buf, len,
- key->key_mic);
- if (os_memcmp_const(mic, key->key_mic, 16) != 0) {
+ os_memset(key->key_mic, 0, mic_len);
+ wpa_eapol_key_mic(sm->tptk.kck, sm->tptk.kck_len, sm->key_mgmt,
+ ver, buf, len, key->key_mic);
+ if (os_memcmp_const(mic, key->key_mic, mic_len) != 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Invalid EAPOL-Key MIC "
"when using TPTK - ignoring TPTK");
}
if (!ok && sm->ptk_set) {
- os_memset(key->key_mic, 0, 16);
- wpa_eapol_key_mic(sm->ptk.kck, sm->key_mgmt, ver, buf, len,
- key->key_mic);
- if (os_memcmp_const(mic, key->key_mic, 16) != 0) {
+ os_memset(key->key_mic, 0, mic_len);
+ wpa_eapol_key_mic(sm->ptk.kck, sm->ptk.kck_len, sm->key_mgmt,
+ ver, buf, len, key->key_mic);
+ if (os_memcmp_const(mic, key->key_mic, mic_len) != 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Invalid EAPOL-Key MIC - "
"dropping packet");
/* Decrypt key data here so that this operation does not need
* to be implemented separately for each message type. */
- if (ver == WPA_KEY_INFO_TYPE_HMAC_MD5_RC4) {
+ if (ver == WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 && sm->ptk.kek_len == 16) {
u8 ek[32];
os_memcpy(ek, key->key_iv, 16);
- os_memcpy(ek + 16, sm->ptk.kek, 16);
+ os_memcpy(ek + 16, sm->ptk.kek, sm->ptk.kek_len);
if (rc4_skip(ek, 32, 256, key_data, *key_data_len)) {
os_memset(ek, 0, sizeof(ek));
wpa_msg(sm->ctx->msg_ctx, MSG_ERROR,
"WPA: No memory for AES-UNWRAP buffer");
return -1;
}
- if (aes_unwrap(sm->ptk.kek, 16, *key_data_len / 8,
+ if (aes_unwrap(sm->ptk.kek, sm->ptk.kek_len, *key_data_len / 8,
key_data, buf)) {
os_free(buf);
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
}
-void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm, const u8 *ptk_kck,
- const u8 *ptk_kek)
+void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm,
+ const u8 *ptk_kck, size_t ptk_kck_len,
+ const u8 *ptk_kek, size_t ptk_kek_len)
{
- if (ptk_kck) {
- os_memcpy(sm->ptk.kck, ptk_kck, 16);
+ if (ptk_kck && ptk_kck_len <= WPA_KCK_MAX_LEN) {
+ os_memcpy(sm->ptk.kck, ptk_kck, ptk_kck_len);
+ sm->ptk.kck_len = ptk_kck_len;
wpa_printf(MSG_DEBUG, "Updated PTK KCK");
}
- if (ptk_kek) {
- os_memcpy(sm->ptk.kek, ptk_kek, 16);
+ if (ptk_kek && ptk_kek_len <= WPA_KEK_MAX_LEN) {
+ os_memcpy(sm->ptk.kek, ptk_kek, ptk_kek_len);
+ sm->ptk.kek_len = ptk_kek_len;
wpa_printf(MSG_DEBUG, "Updated PTK KEK");
}
sm->ptk_set = 1;
/*
* wpa_supplicant - WPA definitions
- * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
const struct hostapd_freq_params *params);
int (*tdls_disable_channel_switch)(void *ctx, const u8 *addr);
#endif /* CONFIG_TDLS */
- void (*set_rekey_offload)(void *ctx, const u8 *kek, const u8 *kck,
+ void (*set_rekey_offload)(void *ctx, const u8 *kek, size_t kek_len,
+ const u8 *kck, size_t kck_len,
const u8 *replay_ctr);
int (*key_mgmt_set_pmk)(void *ctx, const u8 *pmk, size_t pmk_len);
};
int wpa_sm_get_p2p_ip_addr(struct wpa_sm *sm, u8 *buf);
void wpa_sm_set_rx_replay_ctr(struct wpa_sm *sm, const u8 *rx_replay_counter);
-void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm, const u8 *ptk_kck,
- const u8 *ptk_kek);
+void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm,
+ const u8 *ptk_kck, size_t ptk_kck_len,
+ const u8 *ptk_kek, size_t ptk_kek_len);
#else /* CONFIG_NO_WPA */
/*
* WPA Supplicant - IEEE 802.11r - Fast BSS Transition
- * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2006-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#ifdef CONFIG_IEEE80211R
int wpa_derive_ptk_ft(struct wpa_sm *sm, const unsigned char *src_addr,
- const struct wpa_eapol_key *key,
- struct wpa_ptk *ptk, size_t ptk_len)
+ const struct wpa_eapol_key *key, struct wpa_ptk *ptk)
{
u8 ptk_name[WPA_PMK_NAME_LEN];
const u8 *anonce = key->key_nonce;
wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", sm->pmk_r1, PMK_LEN);
wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", sm->pmk_r1_name,
WPA_PMK_NAME_LEN);
- wpa_pmk_r1_to_ptk(sm->pmk_r1, sm->snonce, anonce, sm->own_addr,
- sm->bssid, sm->pmk_r1_name,
- (u8 *) ptk, ptk_len, ptk_name);
- wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, ptk_len);
- wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
-
- return 0;
+ return wpa_pmk_r1_to_ptk(sm->pmk_r1, sm->snonce, anonce, sm->own_addr,
+ sm->bssid, sm->pmk_r1_name, ptk, ptk_name,
+ sm->key_mgmt, sm->pairwise_cipher);
}
* @anonce: ANonce or %NULL if not yet available
* @pmk_name: PMKR0Name or PMKR1Name to be added into the RSN IE PMKID List
* @kck: 128-bit KCK for MIC or %NULL if no MIC is used
+ * @kck_len: KCK length in octets
* @target_ap: Target AP address
* @ric_ies: Optional IE(s), e.g., WMM TSPEC(s), for RIC-Request or %NULL
* @ric_ies_len: Length of ric_ies buffer in octets
*/
static u8 * wpa_ft_gen_req_ies(struct wpa_sm *sm, size_t *len,
const u8 *anonce, const u8 *pmk_name,
- const u8 *kck, const u8 *target_ap,
+ const u8 *kck, size_t kck_len,
+ const u8 *target_ap,
const u8 *ric_ies, size_t ric_ies_len,
const u8 *ap_mdie)
{
/* Information element count */
ftie->mic_control[1] = 3 + ieee802_11_ie_count(ric_ies,
ric_ies_len);
- if (wpa_ft_mic(kck, sm->own_addr, target_ap, 5,
+ if (wpa_ft_mic(kck, kck_len, sm->own_addr, target_ap, 5,
((u8 *) mdie) - 2, 2 + sizeof(*mdie),
ftie_pos, 2 + *ftie_len,
(u8 *) rsnie, 2 + rsnie->len, ric_ies,
keylen = wpa_cipher_key_len(sm->pairwise_cipher);
if (wpa_sm_set_key(sm, alg, bssid, 0, 1, null_rsc,
- sizeof(null_rsc), (u8 *) sm->ptk.tk1, keylen) < 0) {
+ sizeof(null_rsc), (u8 *) sm->ptk.tk, keylen) < 0) {
wpa_printf(MSG_WARNING, "FT: Failed to set PTK to the driver");
return -1;
}
}
ft_ies = wpa_ft_gen_req_ies(sm, &ft_ies_len, NULL, sm->pmk_r0_name,
- NULL, sm->bssid, NULL, 0, mdie);
+ NULL, 0, sm->bssid, NULL, 0, mdie);
if (ft_ies) {
wpa_sm_update_ft_ies(sm, sm->mobility_domain,
ft_ies, ft_ies_len);
const u8 *ric_ies, size_t ric_ies_len)
{
u8 *ft_ies;
- size_t ft_ies_len, ptk_len;
+ size_t ft_ies_len;
struct wpa_ft_ies parse;
struct rsn_mdie *mdie;
struct rsn_ftie *ftie;
sm->pmk_r1_name, WPA_PMK_NAME_LEN);
bssid = target_ap;
- ptk_len = sm->pairwise_cipher != WPA_CIPHER_TKIP ? 48 : 64;
- wpa_pmk_r1_to_ptk(sm->pmk_r1, sm->snonce, ftie->anonce, sm->own_addr,
- bssid, sm->pmk_r1_name,
- (u8 *) &sm->ptk, ptk_len, ptk_name);
- wpa_hexdump_key(MSG_DEBUG, "FT: PTK",
- (u8 *) &sm->ptk, ptk_len);
- wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
+ if (wpa_pmk_r1_to_ptk(sm->pmk_r1, sm->snonce, ftie->anonce,
+ sm->own_addr, bssid, sm->pmk_r1_name, &sm->ptk,
+ ptk_name, sm->key_mgmt, sm->pairwise_cipher) < 0)
+ return -1;
ft_ies = wpa_ft_gen_req_ies(sm, &ft_ies_len, ftie->anonce,
- sm->pmk_r1_name, sm->ptk.kck, bssid,
+ sm->pmk_r1_name,
+ sm->ptk.kck, sm->ptk.kck_len, bssid,
ric_ies, ric_ies_len,
parse.mdie ? parse.mdie - 2 : NULL);
if (ft_ies) {
return -1;
}
gtk_len = gtk_elem_len - 19;
- if (aes_unwrap(sm->ptk.kek, 16, gtk_len / 8, gtk_elem + 11, gtk)) {
+ if (aes_unwrap(sm->ptk.kek, sm->ptk.kek_len, gtk_len / 8, gtk_elem + 11,
+ gtk)) {
wpa_printf(MSG_WARNING, "FT: AES unwrap failed - could not "
"decrypt GTK");
return -1;
return -1;
}
- if (aes_unwrap(sm->ptk.kek, 16, WPA_IGTK_LEN / 8, igtk_elem + 9, igtk))
- {
+ if (aes_unwrap(sm->ptk.kek, sm->ptk.kek_len, WPA_IGTK_LEN / 8,
+ igtk_elem + 9, igtk)) {
wpa_printf(MSG_WARNING, "FT: AES unwrap failed - could not "
"decrypt IGTK");
return -1;
struct rsn_mdie *mdie;
struct rsn_ftie *ftie;
unsigned int count;
- u8 mic[16];
+ u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
wpa_hexdump(MSG_DEBUG, "FT: Response IEs", ies, ies_len);
return -1;
}
- if (wpa_ft_mic(sm->ptk.kck, sm->own_addr, src_addr, 6,
+ if (wpa_ft_mic(sm->ptk.kck, sm->ptk.kck_len, sm->own_addr, src_addr, 6,
parse.mdie - 2, parse.mdie_len + 2,
parse.ftie - 2, parse.ftie_len + 2,
parse.rsn - 2, parse.rsn_len + 2,
}
ft_ies = wpa_ft_gen_req_ies(sm, &ft_ies_len, NULL, sm->pmk_r0_name,
- NULL, target_ap, NULL, 0, mdie);
+ NULL, 0, target_ap, NULL, 0, mdie);
if (ft_ies) {
sm->over_the_ds_in_progress = 1;
os_memcpy(sm->target_ap, target_ap, ETH_ALEN);
/*
* Internal WPA/RSN supplicant state machine definitions
- * Copyright (c) 2004-2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
{
if (!sm->ctx->set_rekey_offload)
return;
- sm->ctx->set_rekey_offload(sm->ctx->ctx, sm->ptk.kek,
- sm->ptk.kck, sm->rx_replay_counter);
+ sm->ctx->set_rekey_offload(sm->ctx->ctx, sm->ptk.kek, sm->ptk.kek_len,
+ sm->ptk.kck, sm->ptk.kck_len,
+ sm->rx_replay_counter);
}
#ifdef CONFIG_TDLS
return sm->ctx->key_mgmt_set_pmk(sm->ctx->ctx, pmk, pmk_len);
}
-void wpa_eapol_key_send(struct wpa_sm *sm, const u8 *kck,
+void wpa_eapol_key_send(struct wpa_sm *sm, const u8 *kck, size_t kck_len,
int ver, const u8 *dest, u16 proto,
u8 *msg, size_t msg_len, u8 *key_mic);
int wpa_supplicant_send_2_of_4(struct wpa_sm *sm, const unsigned char *dst,
struct wpa_ptk *ptk);
int wpa_derive_ptk_ft(struct wpa_sm *sm, const unsigned char *src_addr,
- const struct wpa_eapol_key *key,
- struct wpa_ptk *ptk, size_t ptk_len);
+ const struct wpa_eapol_key *key, struct wpa_ptk *ptk);
void wpa_tdls_assoc(struct wpa_sm *sm);
void wpa_tdls_disassoc(struct wpa_sm *sm);
/*
* wlantest frame injection
- * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2010-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
frame, len, hdrlen, qos, pn, 0,
&crypt_len);
else if (sta->pairwise_cipher == WPA_CIPHER_TKIP)
- crypt = tkip_encrypt(incorrect_key ? dummy : sta->ptk.tk1,
+ crypt = tkip_encrypt(incorrect_key ? dummy : sta->ptk.tk,
frame, len, hdrlen, qos, pn, 0,
&crypt_len);
else
- crypt = ccmp_encrypt(incorrect_key ? dummy : sta->ptk.tk1,
+ crypt = ccmp_encrypt(incorrect_key ? dummy : sta->ptk.tk,
frame, len, hdrlen, qos, pn, 0,
&crypt_len);
/*
* Received Data frame processing
- * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2010-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
decrypted = NULL;
if ((pairwise_cipher == WPA_CIPHER_CCMP ||
pairwise_cipher == 0) && tk_len == 16) {
- decrypted = ccmp_decrypt(ptk->ptk.tk1, hdr, data,
+ decrypted = ccmp_decrypt(ptk->ptk.tk, hdr, data,
data_len, decrypted_len);
} else if ((pairwise_cipher == WPA_CIPHER_CCMP_256 ||
pairwise_cipher == 0) && tk_len == 32) {
- decrypted = ccmp_256_decrypt(ptk->ptk.tk1, hdr, data,
+ decrypted = ccmp_256_decrypt(ptk->ptk.tk, hdr, data,
data_len, decrypted_len);
} else if ((pairwise_cipher == WPA_CIPHER_GCMP ||
pairwise_cipher == WPA_CIPHER_GCMP_256 ||
pairwise_cipher == 0) &&
(tk_len == 16 || tk_len == 32)) {
- decrypted = gcmp_decrypt(ptk->ptk.tk1, tk_len, hdr,
+ decrypted = gcmp_decrypt(ptk->ptk.tk, tk_len, hdr,
data, data_len, decrypted_len);
} else if ((pairwise_cipher == WPA_CIPHER_TKIP ||
pairwise_cipher == 0) && tk_len == 32) {
- decrypted = tkip_decrypt(ptk->ptk.tk1, hdr, data,
+ decrypted = tkip_decrypt(ptk->ptk.tk, hdr, data,
data_len, decrypted_len);
}
if (decrypted) {
else
decrypted = ccmp_decrypt(tk, hdr, data, len, &dlen);
} else if (sta->pairwise_cipher == WPA_CIPHER_TKIP) {
- decrypted = tkip_decrypt(sta->ptk.tk1, hdr, data, len, &dlen);
+ decrypted = tkip_decrypt(sta->ptk.tk, hdr, data, len, &dlen);
} else if (sta->pairwise_cipher == WPA_CIPHER_WEP40) {
decrypted = wep_decrypt(wt, hdr, data, len, &dlen);
} else if (sta->ptk_set) {
if (sta->pairwise_cipher == WPA_CIPHER_CCMP_256)
- decrypted = ccmp_256_decrypt(sta->ptk.tk1, hdr, data,
+ decrypted = ccmp_256_decrypt(sta->ptk.tk, hdr, data,
len, &dlen);
else if (sta->pairwise_cipher == WPA_CIPHER_GCMP ||
sta->pairwise_cipher == WPA_CIPHER_GCMP_256)
- decrypted = gcmp_decrypt(sta->ptk.tk1, sta->tk_len,
+ decrypted = gcmp_decrypt(sta->ptk.tk, sta->tk_len,
hdr, data, len, &dlen);
else
- decrypted = ccmp_decrypt(sta->ptk.tk1, hdr, data, len,
+ decrypted = ccmp_decrypt(sta->ptk.tk, hdr, data, len,
&dlen);
} else {
decrypted = try_all_ptk(wt, sta->pairwise_cipher, hdr, data,
/*
* Received Data frame processing for EAPOL messages
- * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2010-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
}
-static int check_mic(const u8 *kck, int akmp, int ver, const u8 *data,
- size_t len)
+static int check_mic(const u8 *kck, size_t kck_len, int akmp, int ver,
+ const u8 *data, size_t len)
{
u8 *buf;
int ret = -1;
struct ieee802_1x_hdr *hdr;
struct wpa_eapol_key *key;
- u8 rx_mic[16];
+ u8 rx_mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
+ size_t mic_len = 16;
buf = os_malloc(len);
if (buf == NULL)
hdr = (struct ieee802_1x_hdr *) buf;
key = (struct wpa_eapol_key *) (hdr + 1);
- os_memcpy(rx_mic, key->key_mic, 16);
- os_memset(key->key_mic, 0, 16);
+ os_memcpy(rx_mic, key->key_mic, mic_len);
+ os_memset(key->key_mic, 0, mic_len);
- if (wpa_eapol_key_mic(kck, akmp, ver, buf, len, key->key_mic) == 0 &&
- os_memcmp(rx_mic, key->key_mic, 16) == 0)
+ if (wpa_eapol_key_mic(kck, kck_len, akmp, ver, buf, len,
+ key->key_mic) == 0 &&
+ os_memcmp(rx_mic, key->key_mic, mic_len) == 0)
ret = 0;
os_free(buf);
struct wlantest_pmk *pmk)
{
struct wpa_ptk ptk;
- size_t ptk_len;
- ptk_len = wpa_cipher_key_len(sta->pairwise_cipher) + 32;
-
- wpa_pmk_to_ptk(pmk->pmk, sizeof(pmk->pmk),
- "Pairwise key expansion",
- bss->bssid, sta->addr, sta->anonce, sta->snonce,
- (u8 *) &ptk, ptk_len,
- wpa_key_mgmt_sha256(sta->key_mgmt));
- if (check_mic(ptk.kck, sta->key_mgmt, ver, data, len) < 0)
+ if (wpa_pmk_to_ptk(pmk->pmk, sizeof(pmk->pmk),
+ "Pairwise key expansion",
+ bss->bssid, sta->addr, sta->anonce, sta->snonce,
+ &ptk, sta->key_mgmt, sta->pairwise_cipher) < 0 ||
+ check_mic(ptk.kck, ptk.kck_len, sta->key_mgmt, ver, data, len) < 0)
return -1;
sta->tk_len = wpa_cipher_key_len(sta->pairwise_cipher);
*/
add_note(wt, MSG_DEBUG, "Derived PTK during rekeying");
os_memcpy(&sta->tptk, &ptk, sizeof(ptk));
- wpa_hexdump(MSG_DEBUG, "TPTK:KCK", sta->tptk.kck, 16);
- wpa_hexdump(MSG_DEBUG, "TPTK:KEK", sta->tptk.kek, 16);
- wpa_hexdump(MSG_DEBUG, "TPTK:TK1", sta->tptk.tk1, 16);
- if (ptk_len > 48)
- wpa_hexdump(MSG_DEBUG, "TPTK:TK2", sta->tptk.u.tk2,
- 16);
+ wpa_hexdump(MSG_DEBUG, "TPTK:KCK",
+ sta->tptk.kck, sta->tptk.kck_len);
+ wpa_hexdump(MSG_DEBUG, "TPTK:KEK",
+ sta->tptk.kek, sta->tptk.kek_len);
+ wpa_hexdump(MSG_DEBUG, "TPTK:TK",
+ sta->tptk.tk, sta->tptk.tk_len);
sta->tptk_set = 1;
return 0;
}
add_note(wt, MSG_DEBUG, "Derived new PTK");
os_memcpy(&sta->ptk, &ptk, sizeof(ptk));
- wpa_hexdump(MSG_DEBUG, "PTK:KCK", sta->ptk.kck, 16);
- wpa_hexdump(MSG_DEBUG, "PTK:KEK", sta->ptk.kek, 16);
- wpa_hexdump(MSG_DEBUG, "PTK:TK1", sta->ptk.tk1, 16);
- if (ptk_len > 48)
- wpa_hexdump(MSG_DEBUG, "PTK:TK2", sta->ptk.u.tk2, 16);
+ wpa_hexdump(MSG_DEBUG, "PTK:KCK", sta->ptk.kck, sta->ptk.kck_len);
+ wpa_hexdump(MSG_DEBUG, "PTK:KEK", sta->ptk.kek, sta->ptk.kek_len);
+ wpa_hexdump(MSG_DEBUG, "PTK:TK", sta->ptk.tk, sta->ptk.tk_len);
sta->ptk_set = 1;
os_memset(sta->rsc_tods, 0, sizeof(sta->rsc_tods));
os_memset(sta->rsc_fromds, 0, sizeof(sta->rsc_fromds));
wpa_debug_level = MSG_WARNING;
dl_list_for_each(ptk, &wt->ptk, struct wlantest_ptk, list) {
- if (check_mic(ptk->ptk.kck, sta->key_mgmt, ver, data,
- len) < 0)
+ if (check_mic(ptk->ptk.kck, ptk->ptk.kck_len,
+ sta->key_mgmt, ver, data, len) < 0)
continue;
wpa_printf(MSG_INFO, "Pre-set PTK matches for STA "
MACSTR " BSSID " MACSTR,
ptk->ptk_len = 32 +
wpa_cipher_key_len(sta->pairwise_cipher);
os_memcpy(&sta->ptk, &ptk->ptk, sizeof(ptk->ptk));
- wpa_hexdump(MSG_DEBUG, "PTK:KCK", sta->ptk.kck, 16);
- wpa_hexdump(MSG_DEBUG, "PTK:KEK", sta->ptk.kek, 16);
- wpa_hexdump(MSG_DEBUG, "PTK:TK1", sta->ptk.tk1, 16);
- if (ptk->ptk_len > 48)
- wpa_hexdump(MSG_DEBUG, "PTK:TK2",
- sta->ptk.u.tk2, 16);
+ wpa_hexdump(MSG_DEBUG, "PTK:KCK",
+ sta->ptk.kck, sta->ptk.kck_len);
+ wpa_hexdump(MSG_DEBUG, "PTK:KEK",
+ sta->ptk.kek, sta->ptk.kek_len);
+ wpa_hexdump(MSG_DEBUG, "PTK:TK",
+ sta->ptk.tk, sta->ptk.tk_len);
sta->ptk_set = 1;
os_memset(sta->rsc_tods, 0, sizeof(sta->rsc_tods));
os_memset(sta->rsc_fromds, 0, sizeof(sta->rsc_fromds));
const struct ieee802_1x_hdr *eapol;
const struct wpa_eapol_key *hdr;
const u8 *key_data, *kck;
+ size_t kck_len;
u16 key_info, key_data_len;
struct wpa_eapol_ie_parse ie;
}
kck = sta->ptk.kck;
+ kck_len = sta->ptk.kck_len;
if (sta->tptk_set) {
add_note(wt, MSG_DEBUG,
"Use TPTK for validation EAPOL-Key MIC");
kck = sta->tptk.kck;
+ kck_len = sta->tptk.kck_len;
}
- if (check_mic(kck, sta->key_mgmt, key_info & WPA_KEY_INFO_TYPE_MASK,
- data, len) < 0) {
+ if (check_mic(kck, kck_len, sta->key_mgmt,
+ key_info & WPA_KEY_INFO_TYPE_MASK, data, len) < 0) {
add_note(wt, MSG_INFO, "Mismatch in EAPOL-Key 2/4 MIC");
return;
}
}
-static u8 * decrypt_eapol_key_data(struct wlantest *wt, const u8 *kek, u16 ver,
+static u8 * decrypt_eapol_key_data(struct wlantest *wt, const u8 *kek,
+ size_t kek_len, u16 ver,
const struct wpa_eapol_key *hdr,
size_t *len)
{
+ if (kek_len != 16)
+ return NULL;
switch (ver) {
case WPA_KEY_INFO_TYPE_HMAC_MD5_RC4:
return decrypt_eapol_key_data_rc4(wt, kek, hdr, len);
const struct ieee802_1x_hdr *eapol;
const struct wpa_eapol_key *hdr;
const u8 *key_data, *kck, *kek;
+ size_t kck_len, kek_len;
int recalc = 0;
u16 key_info, ver;
u8 *decrypted_buf = NULL;
}
kek = sta->ptk.kek;
+ kek_len = sta->ptk.kek_len;
kck = sta->ptk.kck;
+ kck_len = sta->ptk.kck_len;
if (sta->tptk_set) {
add_note(wt, MSG_DEBUG,
"Use TPTK for validation EAPOL-Key MIC");
kck = sta->tptk.kck;
+ kck_len = sta->tptk.kck_len;
kek = sta->tptk.kek;
+ kek_len = sta->tptk.kek_len;
}
- if (check_mic(kck, sta->key_mgmt, key_info & WPA_KEY_INFO_TYPE_MASK,
- data, len) < 0) {
+ if (check_mic(kck, kck_len, sta->key_mgmt,
+ key_info & WPA_KEY_INFO_TYPE_MASK, data, len) < 0) {
add_note(wt, MSG_INFO, "Mismatch in EAPOL-Key 3/4 MIC");
return;
}
decrypted_len = WPA_GET_BE16(hdr->key_data_length);
} else {
ver = key_info & WPA_KEY_INFO_TYPE_MASK;
- decrypted_buf = decrypt_eapol_key_data(wt, kek, ver, hdr,
- &decrypted_len);
+ decrypted_buf = decrypt_eapol_key_data(wt, kek, kek_len, ver,
+ hdr, &decrypted_len);
if (decrypted_buf == NULL) {
add_note(wt, MSG_INFO,
"Failed to decrypt EAPOL-Key Key Data");
const struct wpa_eapol_key *hdr;
u16 key_info;
const u8 *kck;
+ size_t kck_len;
wpa_printf(MSG_DEBUG, "EAPOL-Key 4/4 " MACSTR " -> " MACSTR,
MAC2STR(src), MAC2STR(dst));
}
kck = sta->ptk.kck;
+ kck_len = sta->ptk.kck_len;
if (sta->tptk_set) {
add_note(wt, MSG_DEBUG,
"Use TPTK for validation EAPOL-Key MIC");
kck = sta->tptk.kck;
+ kck_len = sta->tptk.kck_len;
}
- if (check_mic(kck, sta->key_mgmt, key_info & WPA_KEY_INFO_TYPE_MASK,
- data, len) < 0) {
+ if (check_mic(kck, kck_len, sta->key_mgmt,
+ key_info & WPA_KEY_INFO_TYPE_MASK, data, len) < 0) {
add_note(wt, MSG_INFO, "Mismatch in EAPOL-Key 4/4 MIC");
return;
}
}
if (sta->ptk_set &&
- check_mic(sta->ptk.kck, sta->key_mgmt,
+ check_mic(sta->ptk.kck, sta->ptk.kck_len, sta->key_mgmt,
key_info & WPA_KEY_INFO_TYPE_MASK,
data, len) < 0) {
add_note(wt, MSG_INFO, "Mismatch in EAPOL-Key 1/2 MIC");
return;
}
ver = key_info & WPA_KEY_INFO_TYPE_MASK;
- decrypted = decrypt_eapol_key_data(wt, sta->ptk.kek, ver, hdr,
- &decrypted_len);
+ decrypted = decrypt_eapol_key_data(wt, sta->ptk.kek, sta->ptk.kek_len,
+ ver, hdr, &decrypted_len);
if (decrypted == NULL) {
add_note(wt, MSG_INFO, "Failed to decrypt EAPOL-Key Key Data");
return;
}
if (sta->ptk_set &&
- check_mic(sta->ptk.kck, sta->key_mgmt,
+ check_mic(sta->ptk.kck, sta->ptk.kck_len, sta->key_mgmt,
key_info & WPA_KEY_INFO_TYPE_MASK,
data, len) < 0) {
add_note(wt, MSG_INFO, "Mismatch in EAPOL-Key 2/2 MIC");
/*
* Received Management frame processing
- * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2010-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
wpa_hexdump(MSG_INFO, "RSC", rsc, 6);
}
- decrypted = ccmp_decrypt(sta->ptk.tk1, hdr, data + 24, len - 24, dlen);
+ decrypted = ccmp_decrypt(sta->ptk.tk, hdr, data + 24, len - 24, dlen);
if (decrypted) {
os_memcpy(rsc, pn, 6);
frame = os_malloc(24 + *dlen);
/*
* wlantest - IEEE 802.11 protocol monitoring and testing tool
- * Copyright (c) 2010-2013, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2010-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
if (p == NULL)
break;
if (ptk_len < 48) {
- os_memcpy(p->ptk.tk1, ptk, ptk_len);
+ os_memcpy(p->ptk.tk, ptk, ptk_len);
+ p->ptk.tk_len = ptk_len;
p->ptk_len = 32 + ptk_len;
} else {
- os_memcpy(&p->ptk, ptk, ptk_len);
+ os_memcpy(p->ptk.kck, ptk, 16);
+ p->ptk.kck_len = 16;
+ os_memcpy(p->ptk.kek, ptk + 16, 16);
+ p->ptk.kek_len = 16;
+ os_memcpy(p->ptk.tk, ptk + 32, ptk_len - 32);
+ p->ptk.tk_len = ptk_len - 32;
p->ptk_len = ptk_len;
}
dl_list_add(&wt->ptk, &p->list);
/*
* wpa_supplicant - Internal driver interface wrappers
- * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#endif /* ANDROID */
static inline void wpa_drv_set_rekey_info(struct wpa_supplicant *wpa_s,
- const u8 *kek, const u8 *kck,
+ const u8 *kek, size_t kek_len,
+ const u8 *kck, size_t kck_len,
const u8 *replay_ctr)
{
if (!wpa_s->driver->set_rekey_info)
return;
- wpa_s->driver->set_rekey_info(wpa_s->drv_priv, kek, kck, replay_ctr);
+ wpa_s->driver->set_rekey_info(wpa_s->drv_priv, kek, kek_len,
+ kck, kck_len, replay_ctr);
}
static inline int wpa_drv_radio_disable(struct wpa_supplicant *wpa_s,
/*
* WPA Supplicant - Driver event processing
- * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
}
wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
- data->assoc_info.ptk_kek);
+ data->assoc_info.ptk_kck_len,
+ data->assoc_info.ptk_kek,
+ data->assoc_info.ptk_kek_len);
}
/*
* WPA Supplicant - Glue code to setup EAPOL and RSN modules
- * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#ifndef CONFIG_NO_WPA
-static void wpa_supplicant_set_rekey_offload(void *ctx, const u8 *kek,
- const u8 *kck,
+static void wpa_supplicant_set_rekey_offload(void *ctx,
+ const u8 *kek, size_t kek_len,
+ const u8 *kck, size_t kck_len,
const u8 *replay_ctr)
{
struct wpa_supplicant *wpa_s = ctx;
- wpa_drv_set_rekey_info(wpa_s, kek, kck, replay_ctr);
+ wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr);
}
#endif /* CONFIG_NO_WPA */
projects / mech_eap.git / commitdiff