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/*
 * This file contains prototypes for the public SSL functions.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* $Id: sslt.h,v 1.24 2013/02/15 17:52:45 kaie%kuix.de Exp $ */

#ifndef __sslt_h_
#define __sslt_h_

#include "prtypes.h"

typedef struct SSL3StatisticsStr {
    /* statistics from ssl3_SendClientHello (sch) */
    long sch_sid_cache_hits;
    long sch_sid_cache_misses;
    long sch_sid_cache_not_ok;

    /* statistics from ssl3_HandleServerHello (hsh) */
    long hsh_sid_cache_hits;
    long hsh_sid_cache_misses;
    long hsh_sid_cache_not_ok;

    /* statistics from ssl3_HandleClientHello (hch) */
    long hch_sid_cache_hits;
    long hch_sid_cache_misses;
    long hch_sid_cache_not_ok;

    /* statistics related to stateless resume */
    long sch_sid_stateless_resumes;
    long hsh_sid_stateless_resumes;
    long hch_sid_stateless_resumes;
    long hch_sid_ticket_parse_failures;
} SSL3Statistics;

/* Key Exchange algorithm values */
typedef enum {
    ssl_kea_null     = 0,
    ssl_kea_rsa      = 1,
    ssl_kea_dh       = 2,
    ssl_kea_fortezza = 3,       /* deprecated, now unused */
    ssl_kea_ecdh     = 4,
    ssl_kea_size		/* number of ssl_kea_ algorithms */
} SSLKEAType;

/* The following defines are for backwards compatibility.
** They will be removed in a forthcoming release to reduce namespace pollution.
** programs that use the kt_ symbols should convert to the ssl_kt_ symbols
** soon.
*/
#define kt_null   	ssl_kea_null
#define kt_rsa   	ssl_kea_rsa
#define kt_dh   	ssl_kea_dh
#define kt_fortezza	ssl_kea_fortezza       /* deprecated, now unused */
#define kt_ecdh   	ssl_kea_ecdh
#define kt_kea_size	ssl_kea_size

typedef enum {
    ssl_sign_null   = 0, 
    ssl_sign_rsa    = 1,
    ssl_sign_dsa    = 2,
    ssl_sign_ecdsa  = 3
} SSLSignType;

typedef enum {
    ssl_auth_null   = 0, 
    ssl_auth_rsa    = 1,
    ssl_auth_dsa    = 2,
    ssl_auth_kea    = 3,
    ssl_auth_ecdsa  = 4
} SSLAuthType;

typedef enum {
    ssl_calg_null     = 0,
    ssl_calg_rc4      = 1,
    ssl_calg_rc2      = 2,
    ssl_calg_des      = 3,
    ssl_calg_3des     = 4,
    ssl_calg_idea     = 5,
    ssl_calg_fortezza = 6,      /* deprecated, now unused */
    ssl_calg_aes      = 7,      /* coming soon */
    ssl_calg_camellia = 8,
    ssl_calg_seed     = 9
} SSLCipherAlgorithm;

typedef enum { 
    ssl_mac_null      = 0, 
    ssl_mac_md5       = 1, 
    ssl_mac_sha       = 2, 
    ssl_hmac_md5      = 3, 	/* TLS HMAC version of mac_md5 */
    ssl_hmac_sha      = 4 	/* TLS HMAC version of mac_sha */
} SSLMACAlgorithm;

typedef enum {
    ssl_compression_null = 0,
    ssl_compression_deflate = 1  /* RFC 3749 */
} SSLCompressionMethod;

typedef struct SSLChannelInfoStr {
    PRUint32             length;
    PRUint16             protocolVersion;
    PRUint16             cipherSuite;

    /* server authentication info */
    PRUint32             authKeyBits;

    /* key exchange algorithm info */
    PRUint32             keaKeyBits;

    /* session info */
    PRUint32             creationTime;		/* seconds since Jan 1, 1970 */
    PRUint32             lastAccessTime;	/* seconds since Jan 1, 1970 */
    PRUint32             expirationTime;	/* seconds since Jan 1, 1970 */
    PRUint32             sessionIDLength;	/* up to 32 */
    PRUint8              sessionID    [32];

    /* The following fields are added in NSS 3.12.5. */

    /* compression method info */
    const char *         compressionMethodName;
    SSLCompressionMethod compressionMethod;
} SSLChannelInfo;

typedef struct SSLCipherSuiteInfoStr {
    PRUint16             length;
    PRUint16             cipherSuite;

    /* Cipher Suite Name */
    const char *         cipherSuiteName;

    /* server authentication info */
    const char *         authAlgorithmName;
    SSLAuthType          authAlgorithm;

    /* key exchange algorithm info */
    const char *         keaTypeName;
    SSLKEAType           keaType;

    /* symmetric encryption info */
    const char *         symCipherName;
    SSLCipherAlgorithm   symCipher;
    PRUint16             symKeyBits;
    PRUint16             symKeySpace;
    PRUint16             effectiveKeyBits;

    /* MAC info */
    const char *         macAlgorithmName;
    SSLMACAlgorithm      macAlgorithm;
    PRUint16             macBits;

    PRUintn              isFIPS       : 1;
    PRUintn              isExportable : 1;
    PRUintn              nonStandard  : 1;
    PRUintn              reservedBits :29;

} SSLCipherSuiteInfo;

typedef enum {
    ssl_variant_stream = 0,
    ssl_variant_datagram = 1
} SSLProtocolVariant;

typedef struct SSLVersionRangeStr {
    PRUint16 min;
    PRUint16 max;
} SSLVersionRange;

typedef enum {
    SSL_sni_host_name                    = 0,
    SSL_sni_type_total
} SSLSniNameType;

/* Supported extensions. */
/* Update SSL_MAX_EXTENSIONS whenever a new extension type is added. */
typedef enum {
    ssl_server_name_xtn              = 0,
    ssl_cert_status_xtn              = 5,
#ifdef NSS_ENABLE_ECC
    ssl_elliptic_curves_xtn          = 10,
    ssl_ec_point_formats_xtn         = 11,
#endif
    ssl_use_srtp_xtn                 = 14,
    ssl_session_ticket_xtn           = 35,
    ssl_next_proto_nego_xtn          = 13172,
    ssl_renegotiation_info_xtn       = 0xff01	/* experimental number */
} SSLExtensionType;

#define SSL_MAX_EXTENSIONS             8

#endif /* __sslt_h_ */