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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Private header file of libSSL.
* Various and sundry protocol constants. DON'T CHANGE THESE. These
* values are defined by the SSL 3.0 protocol specification.
*
* 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 __ssl3proto_h_
#define __ssl3proto_h_
typedef PRUint16 SSL3ProtocolVersion;
/* version numbers are defined in sslproto.h */
typedef PRUint16 ssl3CipherSuite;
/* The cipher suites are defined in sslproto.h */
#define MAX_CERT_TYPES 10
#define MAX_MAC_LENGTH 64
#define MAX_PADDING_LENGTH 64
#define MAX_KEY_LENGTH 64
#define EXPORT_KEY_LENGTH 5
#define SSL3_RANDOM_LENGTH 32
#define SSL3_RECORD_HEADER_LENGTH 5
/* SSL3_RECORD_HEADER_LENGTH + epoch/sequence_number */
#define DTLS_RECORD_HEADER_LENGTH 13
/* Max values for TLS records/ciphertexts
* For TLS 1.2 records MUST NOT be longer than 2^14 + 2048
* For TLS 1.3 records MUST NOT exceed 2^14 + 256 bytes.
* [RFC8446 Section 5.2, RFC5246 Section 6.2.3]. */
#define MAX_FRAGMENT_LENGTH 16384
#define TLS_1_2_MAX_EXPANSION 2048
#define TLS_1_3_MAX_EXPANSION (255 + 1)
#define TLS_1_3_MAX_CTEXT_LENGTH ((MAX_FRAGMENT_LENGTH) + (TLS_1_3_MAX_EXPANSION))
#define TLS_1_2_MAX_CTEXT_LENGTH ((MAX_FRAGMENT_LENGTH) + (TLS_1_2_MAX_EXPANSION))
/* DTLS_X_X_MAX_PACKET_LENGTH = TLS_X_X_MAX_RECORD_LENGTH + HEADER_LENGTH,
* used for DTLS datagram buffer size setting. We do not support DTLS CID! */
#define DTLS_1_3_MAX_PACKET_LENGTH ((TLS_1_3_MAX_CTEXT_LENGTH) + (SSL3_RECORD_HEADER_LENGTH))
#define DTLS_1_2_MAX_PACKET_LENGTH ((TLS_1_2_MAX_CTEXT_LENGTH) + (DTLS_RECORD_HEADER_LENGTH))
typedef enum { change_cipher_spec_choice = 1 } SSL3ChangeCipherSpecChoice;
typedef enum { alert_warning = 1,
alert_fatal = 2 } SSL3AlertLevel;
typedef enum {
close_notify = 0,
unexpected_message = 10,
bad_record_mac = 20,
decryption_failed_RESERVED = 21, /* do not send; see RFC 5246 */
record_overflow = 22, /* TLS only */
decompression_failure = 30,
handshake_failure = 40,
no_certificate = 41, /* SSL3 only, NOT TLS */
bad_certificate = 42,
unsupported_certificate = 43,
certificate_revoked = 44,
certificate_expired = 45,
certificate_unknown = 46,
illegal_parameter = 47,
/* All alerts below are TLS only. */
unknown_ca = 48,
access_denied = 49,
decode_error = 50,
decrypt_error = 51,
export_restriction = 60,
protocol_version = 70,
insufficient_security = 71,
internal_error = 80,
inappropriate_fallback = 86, /* could also be sent for SSLv3 */
user_canceled = 90,
no_renegotiation = 100,
/* Alerts for client hello extensions */
missing_extension = 109,
unsupported_extension = 110,
certificate_unobtainable = 111,
unrecognized_name = 112,
bad_certificate_status_response = 113,
bad_certificate_hash_value = 114,
certificate_required = 116,
no_application_protocol = 120,
ech_required = 121,
/* invalid alert */
no_alert = 256
} SSL3AlertDescription;
typedef PRUint8 SSL3Random[SSL3_RANDOM_LENGTH];
typedef struct {
PRUint8 id[32];
PRUint8 length;
} SSL3SessionID;
/* SSL3SignType moved to ssl.h */
/* The SSL key exchange method used */
typedef enum {
kea_null,
kea_rsa,
kea_dh_dss,
kea_dh_rsa,
kea_dhe_dss,
kea_dhe_rsa,
kea_dh_anon,
kea_ecdh_ecdsa,
kea_ecdhe_ecdsa,
kea_ecdh_rsa,
kea_ecdhe_rsa,
kea_ecdh_anon,
kea_ecdhe_psk,
kea_dhe_psk,
kea_tls13_any,
} SSL3KeyExchangeAlgorithm;
/* SSL3HashesIndividually contains a combination MD5/SHA1 hash, as used in TLS
* prior to 1.2. */
typedef struct {
PRUint8 md5[16];
PRUint8 sha[20];
} SSL3HashesIndividually;
/* SSL3Hashes contains an SSL hash value. The digest is contained in |u.raw|
* which, if |hashAlg==ssl_hash_none| is also a SSL3HashesIndividually
* struct. */
typedef struct {
unsigned int len;
SSLHashType hashAlg;
union {
PRUint8 raw[64];
SSL3HashesIndividually s;
} u;
} SSL3Hashes;
typedef enum {
ct_RSA_sign = 1,
ct_DSS_sign = 2,
ct_RSA_fixed_DH = 3,
ct_DSS_fixed_DH = 4,
ct_RSA_ephemeral_DH = 5,
ct_DSS_ephemeral_DH = 6,
ct_ECDSA_sign = 64,
ct_RSA_fixed_ECDH = 65,
ct_ECDSA_fixed_ECDH = 66
} SSL3ClientCertificateType;
typedef enum {
sender_client = 0x434c4e54,
sender_server = 0x53525652
} SSL3Sender;
typedef SSL3HashesIndividually SSL3Finished;
typedef struct {
PRUint8 verify_data[12];
} TLSFinished;
/*
* TLS extension related data structures and constants.
*/
/* SessionTicket extension related data structures. */
/* NewSessionTicket handshake message. */
typedef struct {
PRTime received_timestamp;
PRUint32 ticket_lifetime_hint;
PRUint32 flags;
PRUint32 ticket_age_add;
PRUint32 max_early_data_size;
SECItem ticket;
} NewSessionTicket;
typedef enum {
tls13_psk_ke = 0,
tls13_psk_dh_ke = 1
} TLS13PskKEModes;
typedef enum {
CLIENT_AUTH_ANONYMOUS = 0,
CLIENT_AUTH_CERTIFICATE = 1
} ClientAuthenticationType;
#define SELF_ENCRYPT_KEY_NAME_LEN 16
#define SELF_ENCRYPT_KEY_NAME_PREFIX "NSS!"
#define SELF_ENCRYPT_KEY_NAME_PREFIX_LEN 4
#define SELF_ENCRYPT_KEY_VAR_NAME_LEN 12
#endif /* __ssl3proto_h_ */
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