gecko-dev/security/nss/lib/ssl/sslt.h

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* 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/. */
#ifndef __sslt_h_
#define __sslt_h_
#include "prtypes.h"
#include "secitem.h"
#include "certt.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_ecdh_psk = 5,
ssl_kea_dh_psk = 6,
ssl_kea_tls13_any = 7,
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
/* Values of this enum match the SignatureAlgorithm enum from
* https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1 */
typedef enum {
ssl_sign_null = 0, /* "anonymous" in TLS */
ssl_sign_rsa = 1,
ssl_sign_dsa = 2,
ssl_sign_ecdsa = 3
} SSLSignType;
/* Values of this enum match the HashAlgorithm enum from
* https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1 */
typedef enum {
/* ssl_hash_none is used internally to mean the pre-1.2 combination of MD5
* and SHA1. The other values are only used in TLS 1.2. */
ssl_hash_none = 0,
ssl_hash_md5 = 1,
ssl_hash_sha1 = 2,
ssl_hash_sha224 = 3,
ssl_hash_sha256 = 4,
ssl_hash_sha384 = 5,
ssl_hash_sha512 = 6
} SSLHashType;
/* Deprecated */
typedef struct SSLSignatureAndHashAlgStr {
SSLHashType hashAlg;
SSLSignType sigAlg;
} SSLSignatureAndHashAlg;
typedef enum {
ssl_sig_none = 0,
ssl_sig_rsa_pkcs1_sha1 = 0x0201,
ssl_sig_rsa_pkcs1_sha256 = 0x0401,
ssl_sig_rsa_pkcs1_sha384 = 0x0501,
ssl_sig_rsa_pkcs1_sha512 = 0x0601,
/* For ECDSA, the pairing of the hash with a specific curve is only enforced
* in TLS 1.3; in TLS 1.2 any curve can be used with each of these. */
ssl_sig_ecdsa_secp256r1_sha256 = 0x0403,
ssl_sig_ecdsa_secp384r1_sha384 = 0x0503,
ssl_sig_ecdsa_secp521r1_sha512 = 0x0603,
ssl_sig_rsa_pss_sha256 = 0x0804,
ssl_sig_rsa_pss_sha384 = 0x0805,
ssl_sig_rsa_pss_sha512 = 0x0806,
ssl_sig_ed25519 = 0x0807,
ssl_sig_ed448 = 0x0808,
ssl_sig_dsa_sha1 = 0x0202,
ssl_sig_dsa_sha256 = 0x0402,
ssl_sig_dsa_sha384 = 0x0502,
ssl_sig_dsa_sha512 = 0x0602,
ssl_sig_ecdsa_sha1 = 0x0203,
/* The following value (which can't be used in the protocol), represents
* the RSA signature using SHA-1 and MD5 that is used in TLS 1.0 and 1.1.
* This is reported as a signature scheme when TLS 1.0 or 1.1 is used.
* This should not be passed to SSL_SignatureSchemePrefSet(); this
* signature scheme is always used and cannot be disabled. */
ssl_sig_rsa_pkcs1_sha1md5 = 0x10101,
} SSLSignatureScheme;
/*
** SSLAuthType describes the type of key that is used to authenticate a
** connection. That is, the type of key in the end-entity certificate.
*/
typedef enum {
ssl_auth_null = 0,
ssl_auth_rsa_decrypt = 1, /* static RSA */
ssl_auth_dsa = 2,
ssl_auth_kea = 3, /* unused */
ssl_auth_ecdsa = 4,
ssl_auth_ecdh_rsa = 5, /* ECDH cert with an RSA signature */
ssl_auth_ecdh_ecdsa = 6, /* ECDH cert with an ECDSA signature */
ssl_auth_rsa_sign = 7, /* RSA PKCS#1.5 signing */
ssl_auth_rsa_pss = 8,
ssl_auth_psk = 9,
ssl_auth_tls13_any = 10,
ssl_auth_size /* number of authentication types */
} SSLAuthType;
/* This is defined for backward compatibility reasons */
#define ssl_auth_rsa ssl_auth_rsa_decrypt
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,
ssl_calg_camellia = 8,
ssl_calg_seed = 9,
ssl_calg_aes_gcm = 10,
ssl_calg_chacha20 = 11
} 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 */
ssl_hmac_sha256 = 5,
ssl_mac_aead = 6,
ssl_hmac_sha384 = 7
} SSLMACAlgorithm;
typedef enum {
ssl_compression_null = 0,
ssl_compression_deflate = 1 /* RFC 3749 */
} SSLCompressionMethod;
typedef enum {
ssl_grp_ec_sect163k1 = 1,
ssl_grp_ec_sect163r1 = 2,
ssl_grp_ec_sect163r2 = 3,
ssl_grp_ec_sect193r1 = 4,
ssl_grp_ec_sect193r2 = 5,
ssl_grp_ec_sect233k1 = 6,
ssl_grp_ec_sect233r1 = 7,
ssl_grp_ec_sect239k1 = 8,
ssl_grp_ec_sect283k1 = 9,
ssl_grp_ec_sect283r1 = 10,
ssl_grp_ec_sect409k1 = 11,
ssl_grp_ec_sect409r1 = 12,
ssl_grp_ec_sect571k1 = 13,
ssl_grp_ec_sect571r1 = 14,
ssl_grp_ec_secp160k1 = 15,
ssl_grp_ec_secp160r1 = 16,
ssl_grp_ec_secp160r2 = 17,
ssl_grp_ec_secp192k1 = 18,
ssl_grp_ec_secp192r1 = 19,
ssl_grp_ec_secp224k1 = 20,
ssl_grp_ec_secp224r1 = 21,
ssl_grp_ec_secp256k1 = 22,
ssl_grp_ec_secp256r1 = 23,
ssl_grp_ec_secp384r1 = 24,
ssl_grp_ec_secp521r1 = 25,
ssl_grp_ec_curve25519 = 29, /* RFC4492 */
ssl_grp_ffdhe_2048 = 256, /* RFC7919 */
ssl_grp_ffdhe_3072 = 257,
ssl_grp_ffdhe_4096 = 258,
ssl_grp_ffdhe_6144 = 259,
ssl_grp_ffdhe_8192 = 260,
ssl_grp_none = 65537, /* special value */
ssl_grp_ffdhe_custom = 65538 /* special value */
} SSLNamedGroup;
typedef struct SSLExtraServerCertDataStr {
/* When this struct is passed to SSL_ConfigServerCert, and authType is set
* to a value other than ssl_auth_null, this limits the use of the key to
* the type defined; otherwise, the certificate is configured for all
* compatible types. */
SSLAuthType authType;
/* The remainder of the certificate chain. */
const CERTCertificateList* certChain;
/* A set of one or more stapled OCSP responses for the certificate. This is
* used to generate the OCSP stapling answer provided by the server. */
const SECItemArray* stapledOCSPResponses;
/* A serialized sign_certificate_timestamp extension, used to answer
* requests from clients for this data. */
const SECItem* signedCertTimestamps;
} SSLExtraServerCertData;
typedef struct SSLChannelInfoStr {
/* On return, SSL_GetChannelInfo sets |length| to the smaller of
* the |len| argument and the length of the struct used by NSS.
* Callers must ensure the application uses a version of NSS that
* isn't older than the version used at compile time. */
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;
/* The following fields are added in NSS 3.21.
* This field only has meaning in TLS < 1.3 and will be set to
* PR_FALSE in TLS 1.3.
*/
PRBool extendedMasterSecretUsed;
/* The following fields were added in NSS 3.25.
* This field only has meaning in TLS >= 1.3, and indicates on the
* client side that the server accepted early (0-RTT) data.
*/
PRBool earlyDataAccepted;
/* The following fields were added in NSS 3.28. */
/* These fields have the same meaning as in SSLCipherSuiteInfo. */
SSLKEAType keaType;
SSLNamedGroup keaGroup;
SSLCipherAlgorithm symCipher;
SSLMACAlgorithm macAlgorithm;
SSLAuthType authType;
SSLSignatureScheme signatureScheme;
/* When adding new fields to this structure, please document the
* NSS version in which they were added. */
} SSLChannelInfo;
/* Preliminary channel info */
#define ssl_preinfo_version (1U << 0)
#define ssl_preinfo_cipher_suite (1U << 1)
#define ssl_preinfo_all (ssl_preinfo_version | ssl_preinfo_cipher_suite)
typedef struct SSLPreliminaryChannelInfoStr {
/* On return, SSL_GetPreliminaryChannelInfo sets |length| to the smaller of
* the |len| argument and the length of the struct used by NSS.
* Callers must ensure the application uses a version of NSS that
* isn't older than the version used at compile time. */
PRUint32 length;
/* A bitfield over SSLPreliminaryValueSet that describes which
* preliminary values are set (see ssl_preinfo_*). */
PRUint32 valuesSet;
/* Protocol version: test (valuesSet & ssl_preinfo_version) */
PRUint16 protocolVersion;
/* Cipher suite: test (valuesSet & ssl_preinfo_cipher_suite) */
PRUint16 cipherSuite;
/* The following fields were added in NSS 3.29. */
/* |canSendEarlyData| is true when a 0-RTT is enabled. This can only be
* true after sending the ClientHello and before the handshake completes.
*/
PRBool canSendEarlyData;
/* The following fields were added in NSS 3.31. */
/* The number of early data octets that a client is permitted to send on
* this connection. The value will be zero if the connection was not
* resumed or early data is not permitted. For a client, this value only
* has meaning if |canSendEarlyData| is true. For a server, this indicates
* the value that was advertised in the session ticket that was used to
* resume this session. */
PRUint32 maxEarlyDataSize;
/* When adding new fields to this structure, please document the
* NSS version in which they were added. */
} SSLPreliminaryChannelInfo;
typedef struct SSLCipherSuiteInfoStr {
/* On return, SSL_GetCipherSuitelInfo sets |length| to the smaller of
* the |len| argument and the length of the struct used by NSS.
* Callers must ensure the application uses a version of NSS that
* isn't older than the version used at compile time. */
PRUint16 length;
PRUint16 cipherSuite;
/* Cipher Suite Name */
const char* cipherSuiteName;
/* server authentication info */
const char* authAlgorithmName;
SSLAuthType authAlgorithm; /* deprecated, use |authType| */
/* 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 */
/* AEAD ciphers don't have a MAC. For an AEAD cipher, macAlgorithmName
* is "AEAD", macAlgorithm is ssl_mac_aead, and macBits is the length in
* bits of the authentication tag. */
const char* macAlgorithmName;
SSLMACAlgorithm macAlgorithm;
PRUint16 macBits;
PRUintn isFIPS : 1;
PRUintn isExportable : 1; /* deprecated, don't use */
PRUintn nonStandard : 1;
PRUintn reservedBits : 29;
/* The following fields were added in NSS 3.24. */
/* This reports the correct authentication type for the cipher suite, use
* this instead of |authAlgorithm|. */
SSLAuthType authType;
/* When adding new fields to this structure, please document the
* NSS version in which they were added. */
} 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,
ssl_supported_groups_xtn = 10,
ssl_ec_point_formats_xtn = 11,
ssl_signature_algorithms_xtn = 13,
ssl_use_srtp_xtn = 14,
ssl_app_layer_protocol_xtn = 16,
/* signed_certificate_timestamp extension, RFC 6962 */
ssl_signed_cert_timestamp_xtn = 18,
ssl_padding_xtn = 21,
ssl_extended_master_secret_xtn = 23,
ssl_session_ticket_xtn = 35,
ssl_tls13_key_share_xtn = 40,
ssl_tls13_pre_shared_key_xtn = 41,
ssl_tls13_early_data_xtn = 42,
ssl_tls13_supported_versions_xtn = 43,
ssl_tls13_cookie_xtn = 44,
ssl_tls13_psk_key_exchange_modes_xtn = 45,
ssl_tls13_ticket_early_data_info_xtn = 46,
ssl_next_proto_nego_xtn = 13172,
ssl_renegotiation_info_xtn = 0xff01,
ssl_tls13_short_header_xtn = 0xff03
} SSLExtensionType;
/* This is the old name for the supported_groups extensions. */
#define ssl_elliptic_curves_xtn ssl_supported_groups_xtn
/* SSL_MAX_EXTENSIONS includes the maximum number of extensions that are
* supported for any single message type. That is, a ClientHello; ServerHello
* and TLS 1.3 NewSessionTicket and HelloRetryRequest extensions have fewer. */
#define SSL_MAX_EXTENSIONS 20
/* Deprecated */
typedef enum {
ssl_dhe_group_none = 0,
ssl_ff_dhe_2048_group = 1,
ssl_ff_dhe_3072_group = 2,
ssl_ff_dhe_4096_group = 3,
ssl_ff_dhe_6144_group = 4,
ssl_ff_dhe_8192_group = 5,
ssl_dhe_group_max
} SSLDHEGroupType;
#endif /* __sslt_h_ */