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Open Menu /contrib/wpa/src/eap_common/eap_gpsk_common.h 
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/*
 * EAP server/peer: EAP-GPSK shared routines
 * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#ifndef EAP_GPSK_COMMON_H
#define EAP_GPSK_COMMON_H

#define EAP_GPSK_OPCODE_GPSK_1 1
#define EAP_GPSK_OPCODE_GPSK_2 2
#define EAP_GPSK_OPCODE_GPSK_3 3
#define EAP_GPSK_OPCODE_GPSK_4 4
#define EAP_GPSK_OPCODE_FAIL 5
#define EAP_GPSK_OPCODE_PROTECTED_FAIL 6

/* Failure-Code in GPSK-Fail and GPSK-Protected-Fail */
#define EAP_GPSK_FAIL_PSK_NOT_FOUND 0x00000001
#define EAP_GPSK_FAIL_AUTHENTICATION_FAILURE 0x00000002
#define EAP_GPSK_FAIL_AUTHORIZATION_FAILURE 0x00000003

#define EAP_GPSK_RAND_LEN 32
#define EAP_GPSK_MAX_SK_LEN 32
#define EAP_GPSK_MAX_PK_LEN 32
#define EAP_GPSK_MAX_MIC_LEN 32

#define EAP_GPSK_VENDOR_IETF		0x00000000
#define EAP_GPSK_CIPHER_RESERVED	0x000000
#define EAP_GPSK_CIPHER_AES		0x000001
#define EAP_GPSK_CIPHER_SHA256		0x000002


#ifdef _MSC_VER
#pragma pack(push, 1)
#endif /* _MSC_VER */

struct eap_gpsk_csuite {
	u8 vendor[4];
	u8 specifier[2];
} STRUCT_PACKED;

#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */

int eap_gpsk_supported_ciphersuite(int vendor, int specifier);
int eap_gpsk_derive_keys(const u8 *psk, size_t psk_len, int vendor,
			 int specifier,
			 const u8 *rand_client, const u8 *rand_server,
			 const u8 *id_client, size_t id_client_len,
			 const u8 *id_server, size_t id_server_len,
			 u8 *msk, u8 *emsk, u8 *sk, size_t *sk_len,
			 u8 *pk, size_t *pk_len);
int eap_gpsk_derive_session_id(const u8 *psk, size_t psk_len, int vendor,
			       int specifier,
			       const u8 *rand_peer, const u8 *rand_server,
			       const u8 *id_peer, size_t id_peer_len,
			       const u8 *id_server, size_t id_server_len,
			       u8 method_type, u8 *sid, size_t *sid_len);
size_t eap_gpsk_mic_len(int vendor, int specifier);
int eap_gpsk_compute_mic(const u8 *sk, size_t sk_len, int vendor,
			 int specifier, const u8 *data, size_t len, u8 *mic);

#endif /* EAP_GPSK_COMMON_H */