[thirdparty/hostap.git] / src / common / wpa_common.c

/*
 * WPA/RSN - Shared functions for supplicant and authenticator
 * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#include "includes.h"

#include "common.h"
#include "md5.h"
#include "sha1.h"
#include "sha256.h"
#include "aes_wrap.h"
#include "crypto.h"
#include "ieee802_11_defs.h"
#include "defs.h"
#include "wpa_common.h"


/**
 * wpa_eapol_key_mic - Calculate EAPOL-Key MIC
 * @key: EAPOL-Key Key Confirmation Key (KCK)
 * @ver: Key descriptor version (WPA_KEY_INFO_TYPE_*)
 * @buf: Pointer to the beginning of the EAPOL header (version field)
 * @len: Length of the EAPOL frame (from EAPOL header to the end of the frame)
 * @mic: Pointer to the buffer to which the EAPOL-Key MIC is written
 * Returns: 0 on success, -1 on failure
 *
 * Calculate EAPOL-Key MIC for an EAPOL-Key packet. The EAPOL-Key MIC field has
 * to be cleared (all zeroes) when calling this function.
 *
 * Note: 'IEEE Std 802.11i-2004 - 8.5.2 EAPOL-Key frames' has an error in the
 * description of the Key MIC calculation. It includes packet data from the
 * beginning of the EAPOL-Key header, not EAPOL header. This incorrect change
 * 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 ver, const u8 *buf, size_t len,
		      u8 *mic)
{
	u8 hash[SHA1_MAC_LEN];

	switch (ver) {
	case WPA_KEY_INFO_TYPE_HMAC_MD5_RC4:
		hmac_md5(key, 16, buf, len, mic);
		break;
	case WPA_KEY_INFO_TYPE_HMAC_SHA1_AES:
		hmac_sha1(key, 16, buf, len, hash);
		os_memcpy(mic, hash, MD5_MAC_LEN);
		break;
#ifdef CONFIG_IEEE80211R
	case WPA_KEY_INFO_TYPE_AES_128_CMAC:
		return omac1_aes_128(key, buf, len, mic);
#endif /* CONFIG_IEEE80211R */
	default:
		return -1;
	}

	return 0;
}


/**
 * wpa_pmk_to_ptk - Calculate PTK from PMK, addresses, and nonces
 * @pmk: Pairwise master key
 * @pmk_len: Length of PMK
 * @label: Label to use in derivation
 * @addr1: AA or SA
 * @addr2: SA or AA
 * @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
 *
 * IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
 * PTK = PRF-X(PMK, "Pairwise key expansion",
 *             Min(AA, SA) || Max(AA, SA) ||
 *             Min(ANonce, SNonce) || Max(ANonce, SNonce))
 *
 * STK = PRF-X(SMK, "Peer 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)
{
	u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];

	if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
		os_memcpy(data, addr1, ETH_ALEN);
		os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
	} else {
		os_memcpy(data, addr2, ETH_ALEN);
		os_memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
	}

	if (os_memcmp(nonce1, nonce2, WPA_NONCE_LEN) < 0) {
		os_memcpy(data + 2 * ETH_ALEN, nonce1, WPA_NONCE_LEN);
		os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce2,
			  WPA_NONCE_LEN);
	} else {
		os_memcpy(data + 2 * ETH_ALEN, nonce2, WPA_NONCE_LEN);
		os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce1,
			  WPA_NONCE_LEN);
	}

#ifdef CONFIG_IEEE80211W
	if (use_sha256)
		sha256_prf(pmk, pmk_len, label, data, sizeof(data),
			   ptk, ptk_len);
	else
#endif /* CONFIG_IEEE80211W */
		sha1_prf(pmk, pmk_len, label, data, sizeof(data), ptk,
			 ptk_len);

	wpa_printf(MSG_DEBUG, "WPA: PTK derivation - A1=" MACSTR " A2=" MACSTR,
		   MAC2STR(addr1), MAC2STR(addr2));
	wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
	wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", ptk, ptk_len);
}


#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,
	       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;

	buf_len = 2 * ETH_ALEN + 1 + mdie_len + ftie_len + rsnie_len + ric_len;
	buf = os_malloc(buf_len);
	if (buf == NULL)
		return -1;

	pos = buf;
	os_memcpy(pos, sta_addr, ETH_ALEN);
	pos += ETH_ALEN;
	os_memcpy(pos, ap_addr, ETH_ALEN);
	pos += ETH_ALEN;
	*pos++ = transaction_seqnum;
	if (rsnie) {
		os_memcpy(pos, rsnie, rsnie_len);
		pos += rsnie_len;
	}
	if (mdie) {
		os_memcpy(pos, mdie, mdie_len);
		pos += mdie_len;
	}
	if (ftie) {
		struct rsn_ftie *_ftie;
		os_memcpy(pos, ftie, ftie_len);
		if (ftie_len < 2 + sizeof(*_ftie)) {
			os_free(buf);
			return -1;
		}
		_ftie = (struct rsn_ftie *) (pos + 2);
		os_memset(_ftie->mic, 0, sizeof(_ftie->mic));
		pos += ftie_len;
	}
	if (ric) {
		os_memcpy(pos, ric, ric_len);
		pos += ric_len;
	}

	wpa_hexdump(MSG_MSGDUMP, "FT: MIC data", buf, pos - buf);
	if (omac1_aes_128(kck, buf, pos - buf, mic)) {
		os_free(buf);
		return -1;
	}

	os_free(buf);

	return 0;
}
#endif /* CONFIG_IEEE80211R */


#ifndef CONFIG_NO_WPA2
static int rsn_selector_to_bitfield(const u8 *s)
{
	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_NONE)
		return WPA_CIPHER_NONE;
	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_WEP40)
		return WPA_CIPHER_WEP40;
	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_TKIP)
		return WPA_CIPHER_TKIP;
	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_CCMP)
		return WPA_CIPHER_CCMP;
	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_WEP104)
		return WPA_CIPHER_WEP104;
#ifdef CONFIG_IEEE80211W
	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_AES_128_CMAC)
		return WPA_CIPHER_AES_128_CMAC;
#endif /* CONFIG_IEEE80211W */
	return 0;
}


static int rsn_key_mgmt_to_bitfield(const u8 *s)
{
	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_UNSPEC_802_1X)
		return WPA_KEY_MGMT_IEEE8021X;
	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X)
		return WPA_KEY_MGMT_PSK;
#ifdef CONFIG_IEEE80211R
	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_FT_802_1X)
		return WPA_KEY_MGMT_FT_IEEE8021X;
	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_FT_PSK)
		return WPA_KEY_MGMT_FT_PSK;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_802_1X_SHA256)
		return WPA_KEY_MGMT_IEEE8021X_SHA256;
	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_PSK_SHA256)
		return WPA_KEY_MGMT_PSK_SHA256;
#endif /* CONFIG_IEEE80211W */
	return 0;
}
#endif /* CONFIG_NO_WPA2 */


/**
 * wpa_parse_wpa_ie_rsn - Parse RSN IE
 * @rsn_ie: Buffer containing RSN IE
 * @rsn_ie_len: RSN IE buffer length (including IE number and length octets)
 * @data: Pointer to structure that will be filled in with parsed data
 * Returns: 0 on success, <0 on failure
 */
int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len,
			 struct wpa_ie_data *data)
{
#ifndef CONFIG_NO_WPA2
	const struct rsn_ie_hdr *hdr;
	const u8 *pos;
	int left;
	int i, count;

	os_memset(data, 0, sizeof(*data));
	data->proto = WPA_PROTO_RSN;
	data->pairwise_cipher = WPA_CIPHER_CCMP;
	data->group_cipher = WPA_CIPHER_CCMP;
	data->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
	data->capabilities = 0;
	data->pmkid = NULL;
	data->num_pmkid = 0;
#ifdef CONFIG_IEEE80211W
	data->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
#else /* CONFIG_IEEE80211W */
	data->mgmt_group_cipher = 0;
#endif /* CONFIG_IEEE80211W */

	if (rsn_ie_len == 0) {
		/* No RSN IE - fail silently */
		return -1;
	}

	if (rsn_ie_len < sizeof(struct rsn_ie_hdr)) {
		wpa_printf(MSG_DEBUG, "%s: ie len too short %lu",
			   __func__, (unsigned long) rsn_ie_len);
		return -1;
	}

	hdr = (const struct rsn_ie_hdr *) rsn_ie;

	if (hdr->elem_id != WLAN_EID_RSN ||
	    hdr->len != rsn_ie_len - 2 ||
	    WPA_GET_LE16(hdr->version) != RSN_VERSION) {
		wpa_printf(MSG_DEBUG, "%s: malformed ie or unknown version",
			   __func__);
		return -2;
	}

	pos = (const u8 *) (hdr + 1);
	left = rsn_ie_len - sizeof(*hdr);

	if (left >= RSN_SELECTOR_LEN) {
		data->group_cipher = rsn_selector_to_bitfield(pos);
#ifdef CONFIG_IEEE80211W
		if (data->group_cipher == WPA_CIPHER_AES_128_CMAC) {
			wpa_printf(MSG_DEBUG, "%s: AES-128-CMAC used as group "
				   "cipher", __func__);
			return -1;
		}
#endif /* CONFIG_IEEE80211W */
		pos += RSN_SELECTOR_LEN;
		left -= RSN_SELECTOR_LEN;
	} else if (left > 0) {
		wpa_printf(MSG_DEBUG, "%s: ie length mismatch, %u too much",
			   __func__, left);
		return -3;
	}

	if (left >= 2) {
		data->pairwise_cipher = 0;
		count = WPA_GET_LE16(pos);
		pos += 2;
		left -= 2;
		if (count == 0 || left < count * RSN_SELECTOR_LEN) {
			wpa_printf(MSG_DEBUG, "%s: ie count botch (pairwise), "
				   "count %u left %u", __func__, count, left);
			return -4;
		}
		for (i = 0; i < count; i++) {
			data->pairwise_cipher |= rsn_selector_to_bitfield(pos);
			pos += RSN_SELECTOR_LEN;
			left -= RSN_SELECTOR_LEN;
		}
#ifdef CONFIG_IEEE80211W
		if (data->pairwise_cipher & WPA_CIPHER_AES_128_CMAC) {
			wpa_printf(MSG_DEBUG, "%s: AES-128-CMAC used as "
				   "pairwise cipher", __func__);
			return -1;
		}
#endif /* CONFIG_IEEE80211W */
	} else if (left == 1) {
		wpa_printf(MSG_DEBUG, "%s: ie too short (for key mgmt)",
			   __func__);
		return -5;
	}

	if (left >= 2) {
		data->key_mgmt = 0;
		count = WPA_GET_LE16(pos);
		pos += 2;
		left -= 2;
		if (count == 0 || left < count * RSN_SELECTOR_LEN) {
			wpa_printf(MSG_DEBUG, "%s: ie count botch (key mgmt), "
				   "count %u left %u", __func__, count, left);
			return -6;
		}
		for (i = 0; i < count; i++) {
			data->key_mgmt |= rsn_key_mgmt_to_bitfield(pos);
			pos += RSN_SELECTOR_LEN;
			left -= RSN_SELECTOR_LEN;
		}
	} else if (left == 1) {
		wpa_printf(MSG_DEBUG, "%s: ie too short (for capabilities)",
			   __func__);
		return -7;
	}

	if (left >= 2) {
		data->capabilities = WPA_GET_LE16(pos);
		pos += 2;
		left -= 2;
	}

	if (left >= 2) {
		data->num_pmkid = WPA_GET_LE16(pos);
		pos += 2;
		left -= 2;
		if (left < (int) data->num_pmkid * PMKID_LEN) {
			wpa_printf(MSG_DEBUG, "%s: PMKID underflow "
				   "(num_pmkid=%lu left=%d)",
				   __func__, (unsigned long) data->num_pmkid,
				   left);
			data->num_pmkid = 0;
			return -9;
		} else {
			data->pmkid = pos;
			pos += data->num_pmkid * PMKID_LEN;
			left -= data->num_pmkid * PMKID_LEN;
		}
	}

#ifdef CONFIG_IEEE80211W
	if (left >= 4) {
		data->mgmt_group_cipher = rsn_selector_to_bitfield(pos);
		if (data->mgmt_group_cipher != WPA_CIPHER_AES_128_CMAC) {
			wpa_printf(MSG_DEBUG, "%s: Unsupported management "
				   "group cipher 0x%x", __func__,
				   data->mgmt_group_cipher);
			return -10;
		}
		pos += RSN_SELECTOR_LEN;
		left -= RSN_SELECTOR_LEN;
	}
#endif /* CONFIG_IEEE80211W */

	if (left > 0) {
		wpa_printf(MSG_DEBUG, "%s: ie has %u trailing bytes - ignored",
			   __func__, left);
	}

	return 0;
#else /* CONFIG_NO_WPA2 */
	return -1;
#endif /* CONFIG_NO_WPA2 */
}


#ifdef CONFIG_IEEE80211R

/**
 * wpa_derive_pmk_r0 - Derive PMK-R0 and PMKR0Name
 *
 * IEEE Std 802.11r-2008 - 8.5.1.5.3
 */
void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len,
		       const u8 *ssid, size_t ssid_len,
		       const u8 *mdid, const u8 *r0kh_id, size_t r0kh_id_len,
		       const u8 *s0kh_id, u8 *pmk_r0, u8 *pmk_r0_name)
{
	u8 buf[1 + WPA_MAX_SSID_LEN + MOBILITY_DOMAIN_ID_LEN + 1 +
	       FT_R0KH_ID_MAX_LEN + ETH_ALEN];
	u8 *pos, r0_key_data[48], hash[32];
	const u8 *addr[2];
	size_t len[2];

	/*
	 * R0-Key-Data = KDF-384(XXKey, "FT-R0",
	 *                       SSIDlength || SSID || MDID || R0KHlength ||
	 *                       R0KH-ID || S0KH-ID)
	 * XXKey is either the second 256 bits of MSK or PSK.
	 * PMK-R0 = L(R0-Key-Data, 0, 256)
	 * PMK-R0Name-Salt = L(R0-Key-Data, 256, 128)
	 */
	if (ssid_len > WPA_MAX_SSID_LEN || r0kh_id_len > FT_R0KH_ID_MAX_LEN)
		return;
	pos = buf;
	*pos++ = ssid_len;
	os_memcpy(pos, ssid, ssid_len);
	pos += ssid_len;
	os_memcpy(pos, mdid, MOBILITY_DOMAIN_ID_LEN);
	pos += MOBILITY_DOMAIN_ID_LEN;
	*pos++ = r0kh_id_len;
	os_memcpy(pos, r0kh_id, r0kh_id_len);
	pos += r0kh_id_len;
	os_memcpy(pos, s0kh_id, ETH_ALEN);
	pos += ETH_ALEN;

	sha256_prf(xxkey, xxkey_len, "FT-R0", buf, pos - buf,
		   r0_key_data, sizeof(r0_key_data));
	os_memcpy(pmk_r0, r0_key_data, PMK_LEN);

	/*
	 * PMKR0Name = Truncate-128(SHA-256("FT-R0N" || PMK-R0Name-Salt)
	 */
	addr[0] = (const u8 *) "FT-R0N";
	len[0] = 6;
	addr[1] = r0_key_data + PMK_LEN;
	len[1] = 16;

	sha256_vector(2, addr, len, hash);
	os_memcpy(pmk_r0_name, hash, WPA_PMK_NAME_LEN);
}


/**
 * wpa_derive_pmk_r1_name - Derive PMKR1Name
 *
 * IEEE Std 802.11r-2008 - 8.5.1.5.4
 */
void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id,
			    const u8 *s1kh_id, u8 *pmk_r1_name)
{
	u8 hash[32];
	const u8 *addr[4];
	size_t len[4];

	/*
	 * PMKR1Name = Truncate-128(SHA-256("FT-R1N" || PMKR0Name ||
	 *                                  R1KH-ID || S1KH-ID))
	 */
	addr[0] = (const u8 *) "FT-R1N";
	len[0] = 6;
	addr[1] = pmk_r0_name;
	len[1] = WPA_PMK_NAME_LEN;
	addr[2] = r1kh_id;
	len[2] = FT_R1KH_ID_LEN;
	addr[3] = s1kh_id;
	len[3] = ETH_ALEN;

	sha256_vector(4, addr, len, hash);
	os_memcpy(pmk_r1_name, hash, WPA_PMK_NAME_LEN);
}


/**
 * wpa_derive_pmk_r1 - Derive PMK-R1 and PMKR1Name from PMK-R0
 *
 * IEEE Std 802.11r-2008 - 8.5.1.5.4
 */
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)
{
	u8 buf[FT_R1KH_ID_LEN + ETH_ALEN];
	u8 *pos;

	/* PMK-R1 = KDF-256(PMK-R0, "FT-R1", R1KH-ID || S1KH-ID) */
	pos = buf;
	os_memcpy(pos, r1kh_id, FT_R1KH_ID_LEN);
	pos += FT_R1KH_ID_LEN;
	os_memcpy(pos, s1kh_id, ETH_ALEN);
	pos += ETH_ALEN;

	sha256_prf(pmk_r0, PMK_LEN, "FT-R1", buf, pos - buf, pmk_r1, PMK_LEN);

	wpa_derive_pmk_r1_name(pmk_r0_name, r1kh_id, s1kh_id, pmk_r1_name);
}


/**
 * wpa_pmk_r1_to_ptk - Derive PTK and PTKName from PMK-R1
 *
 * 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)
{
	u8 buf[2 * WPA_NONCE_LEN + 2 * ETH_ALEN];
	u8 *pos, hash[32];
	const u8 *addr[6];
	size_t len[6];

	/*
	 * PTK = KDF-PTKLen(PMK-R1, "FT-PTK", SNonce || ANonce ||
	 *                  BSSID || STA-ADDR)
	 */
	pos = buf;
	os_memcpy(pos, snonce, WPA_NONCE_LEN);
	pos += WPA_NONCE_LEN;
	os_memcpy(pos, anonce, WPA_NONCE_LEN);
	pos += WPA_NONCE_LEN;
	os_memcpy(pos, bssid, ETH_ALEN);
	pos += ETH_ALEN;
	os_memcpy(pos, sta_addr, ETH_ALEN);
	pos += ETH_ALEN;

	sha256_prf(pmk_r1, PMK_LEN, "FT-PTK", buf, pos - buf, ptk, ptk_len);

	/*
	 * PTKName = Truncate-128(SHA-256(PMKR1Name || "FT-PTKN" || SNonce ||
	 *                                ANonce || BSSID || STA-ADDR))
	 */
	addr[0] = pmk_r1_name;
	len[0] = WPA_PMK_NAME_LEN;
	addr[1] = (const u8 *) "FT-PTKN";
	len[1] = 7;
	addr[2] = snonce;
	len[2] = WPA_NONCE_LEN;
	addr[3] = anonce;
	len[3] = WPA_NONCE_LEN;
	addr[4] = bssid;
	len[4] = ETH_ALEN;
	addr[5] = sta_addr;
	len[5] = ETH_ALEN;

	sha256_vector(6, addr, len, hash);
	os_memcpy(ptk_name, hash, WPA_PMK_NAME_LEN);
}

#endif /* CONFIG_IEEE80211R */
Commit	Line	Data
6fc6879b JM	1	/*
	2	* WPA/RSN - Shared functions for supplicant and authenticator
	3	* Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*
	9	* Alternatively, this software may be distributed under the terms of BSD
	10	* license.
	11	*
	12	* See README and COPYING for more details.
	13	*/
	14
	15	#include "includes.h"
	16
	17	#include "common.h"
	18	#include "md5.h"
	19	#include "sha1.h"
	20	#include "sha256.h"
	21	#include "aes_wrap.h"
	22	#include "crypto.h"
	23	#include "ieee802_11_defs.h"
	24	#include "defs.h"
	25	#include "wpa_common.h"
	26
	27
	28	/**
	29	* wpa_eapol_key_mic - Calculate EAPOL-Key MIC
	30	* @key: EAPOL-Key Key Confirmation Key (KCK)
	31	* @ver: Key descriptor version (WPA_KEY_INFO_TYPE_*)
	32	* @buf: Pointer to the beginning of the EAPOL header (version field)
	33	* @len: Length of the EAPOL frame (from EAPOL header to the end of the frame)
	34	* @mic: Pointer to the buffer to which the EAPOL-Key MIC is written
	35	* Returns: 0 on success, -1 on failure
	36	*
	37	* Calculate EAPOL-Key MIC for an EAPOL-Key packet. The EAPOL-Key MIC field has
	38	* to be cleared (all zeroes) when calling this function.
	39	*
	40	* Note: 'IEEE Std 802.11i-2004 - 8.5.2 EAPOL-Key frames' has an error in the
	41	* description of the Key MIC calculation. It includes packet data from the
	42	* beginning of the EAPOL-Key header, not EAPOL header. This incorrect change
	43	* happened during final editing of the standard and the correct behavior is
	44	* defined in the last draft (IEEE 802.11i/D10).
	45	*/
	46	int wpa_eapol_key_mic(const u8 key, int ver, const u8 buf, size_t len,
	47	u8 *mic)
	48	{
	49	u8 hash[SHA1_MAC_LEN];
	50
	51	switch (ver) {
	52	case WPA_KEY_INFO_TYPE_HMAC_MD5_RC4:
	53	hmac_md5(key, 16, buf, len, mic);
	54	break;
	55	case WPA_KEY_INFO_TYPE_HMAC_SHA1_AES:
	56	hmac_sha1(key, 16, buf, len, hash);
	57	os_memcpy(mic, hash, MD5_MAC_LEN);
	58	break;
	59	#ifdef CONFIG_IEEE80211R
	60	case WPA_KEY_INFO_TYPE_AES_128_CMAC:
	61	return omac1_aes_128(key, buf, len, mic);
	62	#endif /* CONFIG_IEEE80211R */
	63	default:
	64	return -1;
65	}
66
67	return 0;
68	}
69
70
71	/**
72	* wpa_pmk_to_ptk - Calculate PTK from PMK, addresses, and nonces
73	* @pmk: Pairwise master key
74	* @pmk_len: Length of PMK
75	* @label: Label to use in derivation
76	* @addr1: AA or SA
77	* @addr2: SA or AA
78	* @nonce1: ANonce or SNonce
79	* @nonce2: SNonce or ANonce
80	* @ptk: Buffer for pairwise transient key
81	* @ptk_len: Length of PTK
56586197	82	* @use_sha256: Whether to use SHA256-based KDF
6fc6879b JM	83	*
	84	* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
	85	* PTK = PRF-X(PMK, "Pairwise key expansion",
	86	* Min(AA, SA) \|\| Max(AA, SA) \|\|
	87	* Min(ANonce, SNonce) \|\| Max(ANonce, SNonce))
	88	*
	89	* STK = PRF-X(SMK, "Peer key expansion",
	90	* Min(MAC_I, MAC_P) \|\| Max(MAC_I, MAC_P) \|\|
	91	* Min(INonce, PNonce) \|\| Max(INonce, PNonce))
	92	*/
	93	void wpa_pmk_to_ptk(const u8 pmk, size_t pmk_len, const char label,
	94	const u8 addr1, const u8 addr2,
	95	const u8 nonce1, const u8 nonce2,
56586197	96	u8 *ptk, size_t ptk_len, int use_sha256)
6fc6879b JM	97	{
	98	u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];
	99
	100	if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
	101	os_memcpy(data, addr1, ETH_ALEN);
	102	os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
	103	} else {
	104	os_memcpy(data, addr2, ETH_ALEN);
	105	os_memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
	106	}
	107
	108	if (os_memcmp(nonce1, nonce2, WPA_NONCE_LEN) < 0) {
	109	os_memcpy(data + 2 * ETH_ALEN, nonce1, WPA_NONCE_LEN);
	110	os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce2,
	111	WPA_NONCE_LEN);
	112	} else {
	113	os_memcpy(data + 2 * ETH_ALEN, nonce2, WPA_NONCE_LEN);
	114	os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce1,
	115	WPA_NONCE_LEN);
	116	}
	117
56586197 JM	118	#ifdef CONFIG_IEEE80211W
	119	if (use_sha256)
	120	sha256_prf(pmk, pmk_len, label, data, sizeof(data),
	121	ptk, ptk_len);
	122	else
	123	#endif /* CONFIG_IEEE80211W */
	124	sha1_prf(pmk, pmk_len, label, data, sizeof(data), ptk,
	125	ptk_len);
6fc6879b JM	126
	127	wpa_printf(MSG_DEBUG, "WPA: PTK derivation - A1=" MACSTR " A2=" MACSTR,
	128	MAC2STR(addr1), MAC2STR(addr2));
	129	wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
	130	wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", ptk, ptk_len);
	131	}
	132
	133
	134	#ifdef CONFIG_IEEE80211R
	135	int wpa_ft_mic(const u8 kck, const u8 sta_addr, const u8 *ap_addr,
	136	u8 transaction_seqnum, const u8 *mdie, size_t mdie_len,
	137	const u8 *ftie, size_t ftie_len,
	138	const u8 *rsnie, size_t rsnie_len,
	139	const u8 ric, size_t ric_len, u8 mic)
	140	{
	141	u8 buf, pos;
	142	size_t buf_len;
	143
	144	buf_len = 2 * ETH_ALEN + 1 + mdie_len + ftie_len + rsnie_len + ric_len;
	145	buf = os_malloc(buf_len);
	146	if (buf == NULL)
	147	return -1;
	148
	149	pos = buf;
	150	os_memcpy(pos, sta_addr, ETH_ALEN);
	151	pos += ETH_ALEN;
	152	os_memcpy(pos, ap_addr, ETH_ALEN);
	153	pos += ETH_ALEN;
	154	*pos++ = transaction_seqnum;
	155	if (rsnie) {
	156	os_memcpy(pos, rsnie, rsnie_len);
	157	pos += rsnie_len;
	158	}
	159	if (mdie) {
	160	os_memcpy(pos, mdie, mdie_len);
	161	pos += mdie_len;
	162	}
	163	if (ftie) {
	164	struct rsn_ftie *_ftie;
	165	os_memcpy(pos, ftie, ftie_len);
	166	if (ftie_len < 2 + sizeof(*_ftie)) {
	167	os_free(buf);
	168	return -1;
	169	}
	170	_ftie = (struct rsn_ftie *) (pos + 2);
	171	os_memset(_ftie->mic, 0, sizeof(_ftie->mic));
	172	pos += ftie_len;
	173	}
	174	if (ric) {
	175	os_memcpy(pos, ric, ric_len);
	176	pos += ric_len;
	177	}
	178
	179	wpa_hexdump(MSG_MSGDUMP, "FT: MIC data", buf, pos - buf);
	180	if (omac1_aes_128(kck, buf, pos - buf, mic)) {
	181	os_free(buf);
	182	return -1;
	183	}
	184
	185	os_free(buf);
	186
	187	return 0;
	188	}
	189	#endif /* CONFIG_IEEE80211R */
190
191
192	#ifndef CONFIG_NO_WPA2
193	static int rsn_selector_to_bitfield(const u8 *s)
194	{
195	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_NONE)
196	return WPA_CIPHER_NONE;
197	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_WEP40)
198	return WPA_CIPHER_WEP40;
199	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_TKIP)
200	return WPA_CIPHER_TKIP;
201	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_CCMP)
202	return WPA_CIPHER_CCMP;
203	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_WEP104)
204	return WPA_CIPHER_WEP104;
205	#ifdef CONFIG_IEEE80211W
206	if (RSN_SELECTOR_GET(s) == RSN_CIPHER_SUITE_AES_128_CMAC)
207	return WPA_CIPHER_AES_128_CMAC;
208	#endif /* CONFIG_IEEE80211W */
209	return 0;
210	}
211
212
213	static int rsn_key_mgmt_to_bitfield(const u8 *s)
214	{
215	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_UNSPEC_802_1X)
216	return WPA_KEY_MGMT_IEEE8021X;
217	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X)
218	return WPA_KEY_MGMT_PSK;
219	#ifdef CONFIG_IEEE80211R
220	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_FT_802_1X)
221	return WPA_KEY_MGMT_FT_IEEE8021X;
222	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_FT_PSK)
223	return WPA_KEY_MGMT_FT_PSK;
224	#endif /* CONFIG_IEEE80211R */
56586197 JM	225	#ifdef CONFIG_IEEE80211W
	226	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_802_1X_SHA256)
	227	return WPA_KEY_MGMT_IEEE8021X_SHA256;
	228	if (RSN_SELECTOR_GET(s) == RSN_AUTH_KEY_MGMT_PSK_SHA256)
	229	return WPA_KEY_MGMT_PSK_SHA256;
	230	#endif /* CONFIG_IEEE80211W */
6fc6879b JM	231	return 0;
	232	}
	233	#endif /* CONFIG_NO_WPA2 */
	234
	235
	236	/**
	237	* wpa_parse_wpa_ie_rsn - Parse RSN IE
	238	* @rsn_ie: Buffer containing RSN IE
	239	* @rsn_ie_len: RSN IE buffer length (including IE number and length octets)
	240	* @data: Pointer to structure that will be filled in with parsed data
	241	* Returns: 0 on success, <0 on failure
	242	*/
	243	int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len,
	244	struct wpa_ie_data *data)
	245	{
	246	#ifndef CONFIG_NO_WPA2
	247	const struct rsn_ie_hdr *hdr;
	248	const u8 *pos;
	249	int left;
	250	int i, count;
	251
	252	os_memset(data, 0, sizeof(*data));
	253	data->proto = WPA_PROTO_RSN;
	254	data->pairwise_cipher = WPA_CIPHER_CCMP;
	255	data->group_cipher = WPA_CIPHER_CCMP;
	256	data->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
	257	data->capabilities = 0;
	258	data->pmkid = NULL;
	259	data->num_pmkid = 0;
	260	#ifdef CONFIG_IEEE80211W
	261	data->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
	262	#else /* CONFIG_IEEE80211W */
	263	data->mgmt_group_cipher = 0;
	264	#endif /* CONFIG_IEEE80211W */
	265
	266	if (rsn_ie_len == 0) {
	267	/* No RSN IE - fail silently */
	268	return -1;
	269	}
	270
	271	if (rsn_ie_len < sizeof(struct rsn_ie_hdr)) {
	272	wpa_printf(MSG_DEBUG, "%s: ie len too short %lu",
	273	__func__, (unsigned long) rsn_ie_len);
	274	return -1;
	275	}
	276
	277	hdr = (const struct rsn_ie_hdr *) rsn_ie;
	278
	279	if (hdr->elem_id != WLAN_EID_RSN \|\|
	280	hdr->len != rsn_ie_len - 2 \|\|
	281	WPA_GET_LE16(hdr->version) != RSN_VERSION) {
	282	wpa_printf(MSG_DEBUG, "%s: malformed ie or unknown version",
	283	__func__);
	284	return -2;
	285	}
	286
	287	pos = (const u8 *) (hdr + 1);
	288	left = rsn_ie_len - sizeof(*hdr);
	289
	290	if (left >= RSN_SELECTOR_LEN) {
	291	data->group_cipher = rsn_selector_to_bitfield(pos);
	292	#ifdef CONFIG_IEEE80211W
	293	if (data->group_cipher == WPA_CIPHER_AES_128_CMAC) {
	294	wpa_printf(MSG_DEBUG, "%s: AES-128-CMAC used as group "
295	"cipher", __func__);
296	return -1;
297	}
298	#endif /* CONFIG_IEEE80211W */
299	pos += RSN_SELECTOR_LEN;
300	left -= RSN_SELECTOR_LEN;
301	} else if (left > 0) {
302	wpa_printf(MSG_DEBUG, "%s: ie length mismatch, %u too much",
303	__func__, left);
304	return -3;
305	}
306
307	if (left >= 2) {
308	data->pairwise_cipher = 0;
309	count = WPA_GET_LE16(pos);
310	pos += 2;
311	left -= 2;
312	if (count == 0 \|\| left < count * RSN_SELECTOR_LEN) {
313	wpa_printf(MSG_DEBUG, "%s: ie count botch (pairwise), "
314	"count %u left %u", __func__, count, left);
315	return -4;
316	}
317	for (i = 0; i < count; i++) {
318	data->pairwise_cipher \|= rsn_selector_to_bitfield(pos);
319	pos += RSN_SELECTOR_LEN;
320	left -= RSN_SELECTOR_LEN;
321	}
322	#ifdef CONFIG_IEEE80211W
323	if (data->pairwise_cipher & WPA_CIPHER_AES_128_CMAC) {
324	wpa_printf(MSG_DEBUG, "%s: AES-128-CMAC used as "
325	"pairwise cipher", __func__);
326	return -1;
327	}
328	#endif /* CONFIG_IEEE80211W */
329	} else if (left == 1) {
330	wpa_printf(MSG_DEBUG, "%s: ie too short (for key mgmt)",
331	__func__);
332	return -5;
333	}
334
335	if (left >= 2) {
336	data->key_mgmt = 0;
337	count = WPA_GET_LE16(pos);
338	pos += 2;
339	left -= 2;
340	if (count == 0 \|\| left < count * RSN_SELECTOR_LEN) {
341	wpa_printf(MSG_DEBUG, "%s: ie count botch (key mgmt), "
342	"count %u left %u", __func__, count, left);
343	return -6;
344	}
345	for (i = 0; i < count; i++) {
346	data->key_mgmt \|= rsn_key_mgmt_to_bitfield(pos);
347	pos += RSN_SELECTOR_LEN;
348	left -= RSN_SELECTOR_LEN;
349	}
350	} else if (left == 1) {
351	wpa_printf(MSG_DEBUG, "%s: ie too short (for capabilities)",
352	__func__);
353	return -7;
354	}
355
356	if (left >= 2) {
357	data->capabilities = WPA_GET_LE16(pos);
358	pos += 2;
359	left -= 2;
360	}
361
362	if (left >= 2) {
363	data->num_pmkid = WPA_GET_LE16(pos);
364	pos += 2;
365	left -= 2;
366	if (left < (int) data->num_pmkid * PMKID_LEN) {
367	wpa_printf(MSG_DEBUG, "%s: PMKID underflow "
368	"(num_pmkid=%lu left=%d)",
369	__func__, (unsigned long) data->num_pmkid,
370	left);
371	data->num_pmkid = 0;
372	return -9;
373	} else {
374	data->pmkid = pos;
375	pos += data->num_pmkid * PMKID_LEN;
376	left -= data->num_pmkid * PMKID_LEN;
377	}
378	}
379
380	#ifdef CONFIG_IEEE80211W
381	if (left >= 4) {
382	data->mgmt_group_cipher = rsn_selector_to_bitfield(pos);
383	if (data->mgmt_group_cipher != WPA_CIPHER_AES_128_CMAC) {
384	wpa_printf(MSG_DEBUG, "%s: Unsupported management "
385	"group cipher 0x%x", __func__,
386	data->mgmt_group_cipher);
387	return -10;
388	}
389	pos += RSN_SELECTOR_LEN;
390	left -= RSN_SELECTOR_LEN;
391	}
392	#endif /* CONFIG_IEEE80211W */
393
394	if (left > 0) {
395	wpa_printf(MSG_DEBUG, "%s: ie has %u trailing bytes - ignored",
396	__func__, left);
397	}
398
399	return 0;
400	#else /* CONFIG_NO_WPA2 */
401	return -1;
402	#endif /* CONFIG_NO_WPA2 */
403	}
404
405
406	#ifdef CONFIG_IEEE80211R
407
408	/**
409	* wpa_derive_pmk_r0 - Derive PMK-R0 and PMKR0Name
410	*
c1e033b0	411	* IEEE Std 802.11r-2008 - 8.5.1.5.3
6fc6879b JM	412	*/
	413	void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len,
	414	const u8 *ssid, size_t ssid_len,
	415	const u8 mdid, const u8 r0kh_id, size_t r0kh_id_len,
	416	const u8 s0kh_id, u8 pmk_r0, u8 *pmk_r0_name)
	417	{
	418	u8 buf[1 + WPA_MAX_SSID_LEN + MOBILITY_DOMAIN_ID_LEN + 1 +
	419	FT_R0KH_ID_MAX_LEN + ETH_ALEN];
	420	u8 *pos, r0_key_data[48], hash[32];
	421	const u8 *addr[2];
	422	size_t len[2];
	423
	424	/*
	425	* R0-Key-Data = KDF-384(XXKey, "FT-R0",
	426	* SSIDlength \|\| SSID \|\| MDID \|\| R0KHlength \|\|
	427	* R0KH-ID \|\| S0KH-ID)
	428	* XXKey is either the second 256 bits of MSK or PSK.
	429	* PMK-R0 = L(R0-Key-Data, 0, 256)
	430	* PMK-R0Name-Salt = L(R0-Key-Data, 256, 128)
	431	*/
	432	if (ssid_len > WPA_MAX_SSID_LEN \|\| r0kh_id_len > FT_R0KH_ID_MAX_LEN)
	433	return;
	434	pos = buf;
	435	*pos++ = ssid_len;
	436	os_memcpy(pos, ssid, ssid_len);
	437	pos += ssid_len;
	438	os_memcpy(pos, mdid, MOBILITY_DOMAIN_ID_LEN);
	439	pos += MOBILITY_DOMAIN_ID_LEN;
	440	*pos++ = r0kh_id_len;
	441	os_memcpy(pos, r0kh_id, r0kh_id_len);
	442	pos += r0kh_id_len;
	443	os_memcpy(pos, s0kh_id, ETH_ALEN);
	444	pos += ETH_ALEN;
	445
	446	sha256_prf(xxkey, xxkey_len, "FT-R0", buf, pos - buf,
	447	r0_key_data, sizeof(r0_key_data));
	448	os_memcpy(pmk_r0, r0_key_data, PMK_LEN);
	449
	450	/*
	451	* PMKR0Name = Truncate-128(SHA-256("FT-R0N" \|\| PMK-R0Name-Salt)
	452	*/
	453	addr[0] = (const u8 *) "FT-R0N";
	454	len[0] = 6;
	455	addr[1] = r0_key_data + PMK_LEN;
	456	len[1] = 16;
	457
	458	sha256_vector(2, addr, len, hash);
	459	os_memcpy(pmk_r0_name, hash, WPA_PMK_NAME_LEN);
	460	}
	461
	462
	463	/**
	464	* wpa_derive_pmk_r1_name - Derive PMKR1Name
	465	*
c1e033b0	466	* IEEE Std 802.11r-2008 - 8.5.1.5.4
6fc6879b JM	467	*/
	468	void wpa_derive_pmk_r1_name(const u8 pmk_r0_name, const u8 r1kh_id,
	469	const u8 s1kh_id, u8 pmk_r1_name)
	470	{
	471	u8 hash[32];
	472	const u8 *addr[4];
	473	size_t len[4];
	474
	475	/*
	476	* PMKR1Name = Truncate-128(SHA-256("FT-R1N" \|\| PMKR0Name \|\|
	477	* R1KH-ID \|\| S1KH-ID))
	478	*/
	479	addr[0] = (const u8 *) "FT-R1N";
	480	len[0] = 6;
	481	addr[1] = pmk_r0_name;
	482	len[1] = WPA_PMK_NAME_LEN;
	483	addr[2] = r1kh_id;
	484	len[2] = FT_R1KH_ID_LEN;
	485	addr[3] = s1kh_id;
	486	len[3] = ETH_ALEN;
	487
	488	sha256_vector(4, addr, len, hash);
	489	os_memcpy(pmk_r1_name, hash, WPA_PMK_NAME_LEN);
	490	}
	491
	492
	493	/**
	494	* wpa_derive_pmk_r1 - Derive PMK-R1 and PMKR1Name from PMK-R0
	495	*
c1e033b0	496	* IEEE Std 802.11r-2008 - 8.5.1.5.4
6fc6879b JM	497	*/
	498	void wpa_derive_pmk_r1(const u8 pmk_r0, const u8 pmk_r0_name,
	499	const u8 r1kh_id, const u8 s1kh_id,
	500	u8 pmk_r1, u8 pmk_r1_name)
	501	{
	502	u8 buf[FT_R1KH_ID_LEN + ETH_ALEN];
	503	u8 *pos;
	504
	505	/* PMK-R1 = KDF-256(PMK-R0, "FT-R1", R1KH-ID \|\| S1KH-ID) */
	506	pos = buf;
	507	os_memcpy(pos, r1kh_id, FT_R1KH_ID_LEN);
	508	pos += FT_R1KH_ID_LEN;
	509	os_memcpy(pos, s1kh_id, ETH_ALEN);
	510	pos += ETH_ALEN;
	511
	512	sha256_prf(pmk_r0, PMK_LEN, "FT-R1", buf, pos - buf, pmk_r1, PMK_LEN);
	513
	514	wpa_derive_pmk_r1_name(pmk_r0_name, r1kh_id, s1kh_id, pmk_r1_name);
	515	}
	516
	517
	518	/**
	519	* wpa_pmk_r1_to_ptk - Derive PTK and PTKName from PMK-R1
	520	*
c1e033b0	521	* IEEE Std 802.11r-2008 - 8.5.1.5.5
6fc6879b JM	522	*/
	523	void wpa_pmk_r1_to_ptk(const u8 pmk_r1, const u8 snonce, const u8 *anonce,
	524	const u8 sta_addr, const u8 bssid,
	525	const u8 *pmk_r1_name,
	526	u8 ptk, size_t ptk_len, u8 ptk_name)
	527	{
	528	u8 buf[2 * WPA_NONCE_LEN + 2 * ETH_ALEN];
	529	u8 *pos, hash[32];
	530	const u8 *addr[6];
	531	size_t len[6];
	532
	533	/*
	534	* PTK = KDF-PTKLen(PMK-R1, "FT-PTK", SNonce \|\| ANonce \|\|
	535	* BSSID \|\| STA-ADDR)
	536	*/
	537	pos = buf;
	538	os_memcpy(pos, snonce, WPA_NONCE_LEN);
	539	pos += WPA_NONCE_LEN;
	540	os_memcpy(pos, anonce, WPA_NONCE_LEN);
	541	pos += WPA_NONCE_LEN;
	542	os_memcpy(pos, bssid, ETH_ALEN);
	543	pos += ETH_ALEN;
	544	os_memcpy(pos, sta_addr, ETH_ALEN);
	545	pos += ETH_ALEN;
	546
	547	sha256_prf(pmk_r1, PMK_LEN, "FT-PTK", buf, pos - buf, ptk, ptk_len);
	548
	549	/*
	550	* PTKName = Truncate-128(SHA-256(PMKR1Name \|\| "FT-PTKN" \|\| SNonce \|\|
	551	* ANonce \|\| BSSID \|\| STA-ADDR))
	552	*/
	553	addr[0] = pmk_r1_name;
	554	len[0] = WPA_PMK_NAME_LEN;
	555	addr[1] = (const u8 *) "FT-PTKN";
	556	len[1] = 7;
	557	addr[2] = snonce;
	558	len[2] = WPA_NONCE_LEN;
	559	addr[3] = anonce;
	560	len[3] = WPA_NONCE_LEN;
	561	addr[4] = bssid;
	562	len[4] = ETH_ALEN;
	563	addr[5] = sta_addr;
	564	len[5] = ETH_ALEN;
	565
	566	sha256_vector(6, addr, len, hash);
	567	os_memcpy(ptk_name, hash, WPA_PMK_NAME_LEN);
	568	}
	569
	570	#endif /* CONFIG_IEEE80211R */