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GmSSL/src/tls_trace.c
Zhi Guan 3322a5fc7b Update TLS 1.3
2026-02-27 11:02:22 +08:00

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/*
* Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <gmssl/tls.h>
#include <gmssl/x509.h>
#include <gmssl/error.h>
const char *tls_record_type_name(int type)
{
switch (type) {
case TLS_record_change_cipher_spec: return "ChangeCipherSpec";
case TLS_record_alert: return "Alert";
case TLS_record_handshake: return "Handshake";
case TLS_record_application_data: return "ApplicationData";
}
return NULL;
}
const char *tls_protocol_name(int protocol)
{
switch(protocol) {
case TLS_protocol_tlcp: return "TLCP";
case TLS_protocol_ssl2: return "SSL2.0";
case TLS_protocol_ssl3: return "SSL3.0";
case TLS_protocol_tls1: return "TLS1.0";
case TLS_protocol_tls11: return "TLS1.1";
case TLS_protocol_tls12: return "TLS1.2";
case TLS_protocol_tls13: return "TLS1.3";
case TLS_protocol_dtls1: return "DTLS1.0";
case TLS_protocol_dtls12: return "DTLS1.2";
}
return NULL;
}
const char *tls_cipher_suite_name(int cipher)
{
switch (cipher) {
case TLS_cipher_null_with_null_null: return "TLS_NULL_WITH_NULL_NULL";
case TLS_cipher_sm4_gcm_sm3: return "TLS_SM4_GCM_SM3";
case TLS_cipher_sm4_ccm_sm3: return "TLS_SM4_CCM_SM3";
case TLS_cipher_ecdhe_sm4_cbc_sm3: return "TLS_ECDHE_SM4_CBC_SM3";
case TLS_cipher_ecdhe_sm4_gcm_sm3: return "TLS_ECDHE_SM4_GCM_SM3";
case TLS_cipher_ecc_sm4_cbc_sm3: return "TLS_ECC_SM4_CBC_SM3";
case TLS_cipher_ecc_sm4_gcm_sm3: return "TLS_ECC_SM4_GCM_SM3";
case TLS_cipher_ibsdh_sm4_cbc_sm3: return "TLS_IBSDH_SM4_CBC_SM3";
case TLS_cipher_ibsdh_sm4_gcm_sm3: return "TLS_IBSDH_SM4_GCM_SM3";
case TLS_cipher_ibc_sm4_cbc_sm3: return "TLS_IBC_SM4_CBC_SM3";
case TLS_cipher_ibc_sm4_gcm_sm3: return "TLS_IBC_SM4_GCM_SM3";
case TLS_cipher_rsa_sm4_cbc_sm3: return "TLS_RSA_SM4_CBC_SM3";
case TLS_cipher_rsa_sm4_gcm_sm3: return "TLS_RSA_SM4_GCM_SM3";
case TLS_cipher_rsa_sm4_cbc_sha256: return "TLS_RSA_SM4_CBC_SHA256";
case TLS_cipher_rsa_sm4_gcm_sha256: return "TLS_RSA_SM4_GCM_SHA256";
case TLS_cipher_aes_128_gcm_sha256: return "TLS_AES_128_GCM_SHA256";
case TLS_cipher_aes_256_gcm_sha384: return "TLS_AES_256_GCM_SHA384";
case TLS_cipher_chacha20_poly1305_sha256: return "TLS_CHACHA20_POLY1305_SHA256";
case TLS_cipher_aes_128_ccm_sha256: return "TLS_AES_128_CCM_SHA256";
case TLS_cipher_aes_128_ccm_8_sha256: return "TLS_AES_128_CCM_8_SHA256";
case TLS_cipher_ecdhe_ecdsa_with_aes_128_cbc_sha256: return "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256";
case TLS_cipher_empty_renegotiation_info_scsv: return "TLS_EMPTY_RENEGOTIATION_INFO_SCSV";
}
return NULL;
}
const char *tls_compression_method_name(int meth)
{
switch (meth) {
case 0: return "no_compression";
}
return NULL;
}
const char *tls_extension_name(int ext)
{
switch (ext) {
case TLS_extension_server_name: return "server_name";
case TLS_extension_max_fragment_length: return "max_fragment_length";
case TLS_extension_client_certificate_url: return "client_certificate_url";
case TLS_extension_trusted_ca_keys: return "trusted_ca_keys";
case TLS_extension_truncated_hmac: return "truncated_hmac";
case TLS_extension_status_request: return "status_request";
case TLS_extension_user_mapping: return "user_mapping";
case TLS_extension_client_authz: return "client_authz";
case TLS_extension_server_authz: return "server_authz";
case TLS_extension_cert_type: return "cert_type";
case TLS_extension_supported_groups: return "supported_groups";
case TLS_extension_ec_point_formats: return "ec_point_formats";
case TLS_extension_srp: return "srp";
case TLS_extension_signature_algorithms: return "signature_algorithms";
case TLS_extension_use_srtp: return "use_srtp";
case TLS_extension_heartbeat: return "heartbeat";
case TLS_extension_application_layer_protocol_negotiation: return "application_layer_protocol_negotiation";
case TLS_extension_status_request_v2: return "status_request_v2";
case TLS_extension_signed_certificate_timestamp: return "signed_certificate_timestamp";
case TLS_extension_client_certificate_type: return "client_certificate_type";
case TLS_extension_server_certificate_type: return "server_certificate_type";
case TLS_extension_padding: return "padding";
case TLS_extension_encrypt_then_mac: return "encrypt_then_mac";
case TLS_extension_extended_master_secret: return "extended_master_secret";
case TLS_extension_token_binding: return "token_binding";
case TLS_extension_cached_info: return "cached_info";
case TLS_extension_tls_lts: return "tls_lts";
case TLS_extension_compress_certificate: return "compress_certificate";
case TLS_extension_record_size_limit: return "record_size_limit";
case TLS_extension_pwd_protect: return "pwd_protect";
case TLS_extension_pwd_clear: return "pwd_clear";
case TLS_extension_password_salt: return "password_salt";
case TLS_extension_ticket_pinning: return "ticket_pinning";
case TLS_extension_tls_cert_with_extern_psk: return "tls_cert_with_extern_psk";
case TLS_extension_delegated_credentials: return "delegated_credentials";
case TLS_extension_session_ticket: return "session_ticket";
case TLS_extension_TLMSP: return "TLMSP";
case TLS_extension_TLMSP_proxying: return "TLMSP_proxying";
case TLS_extension_TLMSP_delegate: return "TLMSP_delegate";
case TLS_extension_supported_ekt_ciphers: return "supported_ekt_ciphers";
case TLS_extension_pre_shared_key: return "pre_shared_key";
case TLS_extension_early_data: return "early_data";
case TLS_extension_supported_versions: return "supported_versions";
case TLS_extension_cookie: return "cookie";
case TLS_extension_psk_key_exchange_modes: return "psk_key_exchange_modes";
case TLS_extension_certificate_authorities: return "certificate_authorities";
case TLS_extension_oid_filters: return "oid_filters";
case TLS_extension_post_handshake_auth: return "post_handshake_auth";
case TLS_extension_signature_algorithms_cert: return "signature_algorithms_cert";
case TLS_extension_key_share: return "key_share";
case TLS_extension_transparency_info: return "transparency_info";
case TLS_extension_connection_id: return "connection_id";
case TLS_extension_external_id_hash: return "external_id_hash";
case TLS_extension_external_session_id: return "external_session_id";
case TLS_extension_quic_transport_parameters: return "quic_transport_parameters";
case TLS_extension_ticket_request: return "ticket_request";
case TLS_extension_renegotiation_info: return "renegotiation_info";
};
return NULL;
}
const char *tls_cert_type_name(int type)
{
switch (type) {
case TLS_cert_type_rsa_sign: return "rsa_sign";
case TLS_cert_type_dss_sign: return "dss_sign";
case TLS_cert_type_rsa_fixed_dh: return "rsa_fixed_dh";
case TLS_cert_type_dss_fixed_dh: return "dss_fixed_dh";
case TLS_cert_type_rsa_ephemeral_dh_RESERVED: return "rsa_ephemeral_dh_RESERVED";
case TLS_cert_type_dss_ephemeral_dh_RESERVED: return "dss_ephemeral_dh_RESERVED";
case TLS_cert_type_fortezza_dms_RESERVED: return "fortezza_dms_RESERVED";
case TLS_cert_type_ecdsa_sign: return "ecdsa_sign";
case TLS_cert_type_rsa_fixed_ecdh: return "rsa_fixed_ecdh_DEPRECATED";
case TLS_cert_type_ecdsa_fixed_ecdh: return "ecdsa_fixed_ecdh_DEPRECATED";
case TLS_cert_type_gost_sign256: return "gost_sign256";
case TLS_cert_type_gost_sign512: return "gost_sign512";
case TLS_cert_type_ibc_params: return "ibc_params";
}
return NULL;
}
const char *tls_handshake_type_name(int type)
{
switch (type) {
case TLS_handshake_hello_request: return "HelloRequest";
case TLS_handshake_client_hello: return "ClientHello";
case TLS_handshake_server_hello: return "ServerHello";
case TLS_handshake_hello_verify_request: return "HelloVerifyRequest";
case TLS_handshake_new_session_ticket: return "NewSessionTicket";
case TLS_handshake_end_of_early_data: return "EndOfEarlyData";
case TLS_handshake_hello_retry_request: return "HelloRetryRequest";
case TLS_handshake_encrypted_extensions: return "EncryptedExtensions";
case TLS_handshake_certificate: return "Certificate";
case TLS_handshake_server_key_exchange: return "ServerKeyExchange";
case TLS_handshake_certificate_request: return "CertificateRequest";
case TLS_handshake_server_hello_done: return "ServerHelloDone";
case TLS_handshake_certificate_verify: return "CertificateVerify";
case TLS_handshake_client_key_exchange: return "ClientKeyExchange";
case TLS_handshake_finished: return "Finished";
case TLS_handshake_certificate_url: return "CertificateUrl";
case TLS_handshake_certificate_status: return "CertificateStatus";
case TLS_handshake_supplemental_data: return "SupplementalData";
case TLS_handshake_key_update: return "KeyUpdate";
case TLS_handshake_compressed_certificate: return "CompressedCertificate";
case TLS_handshake_ekt_key: return "EktKey";
case TLS_handshake_message_hash: return "MessageHash";
}
return NULL;
}
const char *tls_alert_level_name(int level)
{
switch (level) {
case TLS_alert_level_warning: return "warning";
case TLS_alert_level_fatal: return "fatal";
}
error_print_msg("unknown alert level %d\n", level);
return NULL;
}
const char *tls_alert_description_text(int description)
{
switch (description) {
case TLS_alert_close_notify: return "close_notify";
case TLS_alert_unexpected_message: return "unexpected_message";
case TLS_alert_bad_record_mac: return "bad_record_mac";
case TLS_alert_decryption_failed: return "decryption_failed";
case TLS_alert_record_overflow: return "record_overflow";
case TLS_alert_decompression_failure: return "decompression_failure";
case TLS_alert_handshake_failure: return "handshake_failure";
case TLS_alert_no_certificate: return "no_certificate_RESERVED";
case TLS_alert_bad_certificate: return "bad_certificate";
case TLS_alert_unsupported_certificate: return "unsupported_certificate";
case TLS_alert_certificate_revoked: return "certificate_revoked";
case TLS_alert_certificate_expired: return "certificate_expired";
case TLS_alert_certificate_unknown: return "certificate_unknown";
case TLS_alert_illegal_parameter: return "illegal_parameter";
case TLS_alert_unknown_ca: return "unknown_ca";
case TLS_alert_access_denied: return "access_denied";
case TLS_alert_decode_error: return "decode_error";
case TLS_alert_decrypt_error: return "decrypt_error";
case TLS_alert_export_restriction: return "export_restriction_RESERVED";
case TLS_alert_protocol_version: return "protocol_version";
case TLS_alert_insufficient_security: return "insufficient_security";
case TLS_alert_internal_error: return "internal_error";
case TLS_alert_user_canceled: return "user_canceled";
case TLS_alert_no_renegotiation: return "no_renegotiation";
case TLS_alert_unsupported_extension: return "unsupported_extension";
case TLS_alert_unsupported_site2site: return "unsupported_site2site";
case TLS_alert_no_area: return "no_area";
case TLS_alert_unsupported_areatype: return "unsupported_areatype";
case TLS_alert_bad_ibcparam: return "bad_ibcparam";
case TLS_alert_unsupported_ibcparam: return "unsupported_ibcparam";
case TLS_alert_identity_need: return "identity_need";
}
error_print_msg("unknown alert description %d", description);
return NULL;
}
const char *tls_change_cipher_spec_text(int change_cipher_spec)
{
switch (change_cipher_spec) {
case TLS_change_cipher_spec: return "change_cipher_spec";
}
return NULL;
}
const char *tls_ec_point_format_name(int format)
{
switch (format) {
case TLS_point_uncompressed: return "uncompressed";
case TLS_point_ansix962_compressed_prime: return "compressed_prime";
case TLS_point_ansix962_compressed_char2: return "compressed_char2";
}
return NULL;
}
const char *tls_curve_type_name(int type)
{
switch (type) {
case TLS_curve_type_explicit_prime: return "explicit_prime";
case TLS_curve_type_explicit_char2: return "explicit_char2";
case TLS_curve_type_named_curve: return "named_curve";
}
return NULL;
}
const char *tls_named_curve_name(int curve)
{
switch (curve) {
case TLS_curve_secp256k1: return "secp256k1";
case TLS_curve_secp256r1: return "secp256r1";
case TLS_curve_secp384r1: return "secp384r1";
case TLS_curve_secp521r1: return "secp521r1";
case TLS_curve_brainpoolp256r1: return "brainpoolp256r1";
case TLS_curve_brainpoolp384r1: return "brainpoolp384r1";
case TLS_curve_brainpoolp512r1: return "brainpoolp512r1";
case TLS_curve_x25519: return "x25519";
case TLS_curve_x448: return "x448";
case TLS_curve_brainpoolp256r1tls13: return "brainpoolp256r1tls13";
case TLS_curve_brainpoolp384r1tls13: return "brainpoolp384r1tls13";
case TLS_curve_brainpoolp512r1tls13: return "brainpoolp512r1tls13";
case TLS_curve_sm2p256v1: return "sm2p256v1";
}
return NULL;
}
const char *tls_signature_scheme_name(int scheme)
{
switch (scheme) {
case TLS_sig_rsa_pkcs1_sha1: return "rsa_pkcs1_sha1";
case TLS_sig_ecdsa_sha1: return "ecdsa_sha1";
case TLS_sig_rsa_pkcs1_sha256: return "rsa_pkcs1_sha256";
case TLS_sig_ecdsa_secp256r1_sha256: return "ecdsa_secp256r1_sha256";
case TLS_sig_rsa_pkcs1_sha256_legacy: return "rsa_pkcs1_sha256_legacy";
case TLS_sig_rsa_pkcs1_sha384: return "rsa_pkcs1_sha384";
case TLS_sig_ecdsa_secp384r1_sha384: return "ecdsa_secp384r1_sha384";
case TLS_sig_rsa_pkcs1_sha384_legacy: return "rsa_pkcs1_sha384_legacy";
case TLS_sig_rsa_pkcs1_sha512: return "rsa_pkcs1_sha512";
case TLS_sig_ecdsa_secp521r1_sha512: return "ecdsa_secp521r1_sha512";
case TLS_sig_rsa_pkcs1_sha512_legacy: return "rsa_pkcs1_sha512_legacy";
case TLS_sig_sm2sig_sm3: return "sm2sig_sm3";
case TLS_sig_rsa_pss_rsae_sha256: return "rsa_pss_rsae_sha256";
case TLS_sig_rsa_pss_rsae_sha384: return "rsa_pss_rsae_sha384";
case TLS_sig_rsa_pss_rsae_sha512: return "rsa_pss_rsae_sha512";
case TLS_sig_ed25519: return "ed25519";
case TLS_sig_ed448: return "ed448";
case TLS_sig_rsa_pss_pss_sha256: return "rsa_pss_pss_sha256";
case TLS_sig_rsa_pss_pss_sha384: return "rsa_pss_pss_sha384";
case TLS_sig_rsa_pss_pss_sha512: return "rsa_pss_pss_sha512";
case TLS_sig_ecdsa_brainpoolP256r1tls13_sha256: return "ecdsa_brainpoolP256r1tls13_sha256";
case TLS_sig_ecdsa_brainpoolP384r1tls13_sha384: return "ecdsa_brainpoolP384r1tls13_sha384";
case TLS_sig_ecdsa_brainpoolP512r1tls13_sha512: return "ecdsa_brainpoolP512r1tls13_sha512";
}
return NULL;
}
int tls_random_print(FILE *fp, const uint8_t random[32], int format, int indent)
{
time_t gmt_unix_time = 0;
const uint8_t *cp = random;
size_t len = 4;
tls_uint32_from_bytes((uint32_t *)&gmt_unix_time, &cp, &len);
format_print(fp, format, indent, "Random\n");
indent += 4;
format_print(fp, format, indent, "gmt_unix_time : %s", ctime(&gmt_unix_time));
format_bytes(fp, format, indent, "random", random + 4, 28);
return 1;
}
int tls_pre_master_secret_print(FILE *fp, const uint8_t pre_master_secret[48], int format, int indent)
{
int protocol = ((int)pre_master_secret[0] << 8) | pre_master_secret[1];
format_print(fp, format, indent, "PreMasterSecret\n");
indent += 4;
format_print(fp, format, indent, "protocol : %s\n", tls_protocol_name(protocol));
format_bytes(fp, format, indent, "pre_master_secret", pre_master_secret, 48);
return 1;
}
/*
* SupportedVersions Extension (only defined in TLS 1.3)
*
* In ClientHello:
* struct {
* ProtocolVersion versions<2..254>;
* } SupportedVersions;
*
* In ServerHello:
* struct {
* ProtocolVersion selected_version;
* } SupportedVersions;
*
这个函数需要一个参数表示扩展是在ClientHello还是在ServerHello中
*/
int tls_extension_print(FILE *fp, int type, const uint8_t *data, size_t datalen, int format, int indent)
{
const uint8_t *p;
size_t len;
format_print(fp, format, indent, "%s (%d)\n", tls_extension_name(type), type);
indent += 4;
switch (type) {
// FIXME: 不支持ServerHello
case TLS_extension_supported_versions:
if (tls_uint16array_from_bytes(&p, &len, &data, &datalen) != 1
|| tls_length_is_zero(datalen) != 1
|| len % 2) {
error_print();
return -1;
}
while (len) {
uint16_t proto;
tls_uint16_from_bytes(&proto, &p, &len);
format_print(fp, format, indent, "%s (0x%04x)\n",
tls_protocol_name(proto), proto);
}
break;
case TLS_extension_supported_groups:
if (tls_uint16array_from_bytes(&p, &len, &data, &datalen) != 1
|| datalen
|| len % 2) {
error_print();
return -1;
}
while (len) {
uint16_t curve;
tls_uint16_from_bytes(&curve, &p, &len);
format_print(fp, format, indent, "%s (%d)\n",
tls_named_curve_name(curve), curve);
}
break;
case TLS_extension_ec_point_formats:
if (tls_uint8array_from_bytes(&p, &len, &data, &datalen) != 1
|| datalen) {
error_print();
return -1;
}
while (len) {
uint8_t point_form;
tls_uint8_from_bytes(&point_form, &p, &len);
format_print(fp, format, indent, "%s (%d)\n",
tls_ec_point_format_name(point_form), point_form);
}
break;
case TLS_extension_signature_algorithms:
if (tls_uint16array_from_bytes(&p, &len, &data, &datalen) != 1
|| datalen
|| len % 2) {
error_print();
return -1;
}
while (len) {
uint16_t sig_alg;
tls_uint16_from_bytes(&sig_alg, &p, &len);
format_print(fp, format, indent, "%s (0x%04x)\n",
tls_signature_scheme_name(sig_alg), sig_alg);
}
break;
case TLS_extension_key_share:
if (tls_uint16array_from_bytes(&p, &len, &data, &datalen) != 1
|| datalen) {
error_print();
return -1;
}
while (len) {
uint16_t group;
const uint8_t *key_exch;
size_t key_exch_len;
if (tls_uint16_from_bytes(&group, &p, &len) != 1
|| tls_uint16array_from_bytes(&key_exch, &key_exch_len, &p, &len) != 1) {
error_print();
return -1;
}
format_print(fp, format, indent, "group: %s (%d)\n", tls_named_curve_name(group), group);
format_bytes(fp, format, indent, "key_exchange", key_exch, key_exch_len);
}
break;
default:
format_bytes(fp, format, indent, "raw_data", data, datalen);
}
return 1;
}
int tls13_extension_print(FILE *fp, int fmt, int ind,
int handshake_type, int ext_type, const uint8_t *ext_data, size_t ext_datalen)
{
switch (ext_type) {
case TLS_extension_supported_groups:
case TLS_extension_ec_point_formats:
case TLS_extension_signature_algorithms:
return tls_extension_print(fp, ext_type, ext_data, ext_datalen, fmt, ind);
}
format_print(fp, fmt, ind, "%s (%d)\n", tls_extension_name(ext_type), ext_type);
ind += 4;
switch (ext_type) {
case TLS_extension_supported_versions:
tls13_supported_versions_ext_print(fp, fmt, ind, handshake_type, ext_data, ext_datalen);
break;
case TLS_extension_key_share:
tls13_key_share_ext_print(fp, fmt, ind, handshake_type, ext_data, ext_datalen);
break;
default:
format_bytes(fp, fmt, ind, "raw_data", ext_data, ext_datalen);
}
return 1;
}
int tls13_extensions_print(FILE *fp, int fmt, int ind,
int handshake_type, const uint8_t *exts, size_t extslen)
{
uint16_t ext_type;
const uint8_t *ext_data;
size_t ext_datalen;
if (!exts) {
format_print(fp, fmt, ind, "Extensions: (null)\n");
return 1;
}
format_print(fp, fmt, ind, "Extensions\n");
ind += 4;
while (extslen > 0) {
if (tls_uint16_from_bytes(&ext_type, &exts, &extslen) != 1
|| tls_uint16array_from_bytes(&ext_data, &ext_datalen, &exts, &extslen) != 1) {
error_print();
return -1;
}
if (tls13_extension_print(fp, fmt, ind, handshake_type, ext_type, ext_data, ext_datalen) != 1) {
error_print();
return -1;
}
}
return 1;
}
int tls_extensions_print(FILE *fp, const uint8_t *exts, size_t extslen, int format, int indent)
{
uint16_t ext_type;
const uint8_t *ext_data;
size_t ext_datalen;
format_print(fp, format, indent, "Extensions\n");
indent += 4;
while (extslen > 0) {
if (tls_uint16_from_bytes(&ext_type, &exts, &extslen) != 1
|| tls_uint16array_from_bytes(&ext_data, &ext_datalen, &exts, &extslen) != 1) {
error_print();
return -1;
}
if (tls_extension_print(fp, ext_type, ext_data, ext_datalen, format, indent) != 1) {
error_print();
return -1;
}
}
return 1;
}
int tls_hello_request_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
format_print(fp, format, indent, "HelloRequest\n");
if (data || datalen > 0) {
error_print();
return -1;
}
return 1;
}
int tls_client_hello_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
int ret = -1;
uint16_t protocol;
const uint8_t *random;
const uint8_t *session_id;
const uint8_t *cipher_suites;
const uint8_t *comp_meths;
const uint8_t *exts;
size_t session_id_len, cipher_suites_len, comp_meths_len, exts_len;
size_t i;
format_print(fp, format, indent, "ClientHello\n"); indent += 4;
if (tls_uint16_from_bytes(&protocol, &data, &datalen) != 1) goto end;
format_print(fp, format, indent, "Version: %s (%d.%d)\n",
tls_protocol_name(protocol), protocol >> 8, protocol & 0xff);
if (tls_array_from_bytes(&random, 32, &data, &datalen) != 1) goto end;
tls_random_print(fp, random, format, indent);
if (tls_uint8array_from_bytes(&session_id, &session_id_len, &data, &datalen) != 1) goto end;
format_bytes(fp, format, indent, "SessionID", session_id, session_id_len);
if (tls_uint16array_from_bytes(&cipher_suites, &cipher_suites_len, &data, &datalen) != 1) goto end;
format_print(fp, format, indent, "CipherSuites\n");
while (cipher_suites_len >= 2) {
uint16_t cipher;
if (tls_uint16_from_bytes(&cipher, &cipher_suites, &cipher_suites_len) != 1) goto end;
format_print(fp, format, indent + 4, "%s (0x%04x)\n",
tls_cipher_suite_name(cipher), cipher);
}
if (cipher_suites_len) {
error_print();
return -1;
}
if (tls_uint8array_from_bytes(&comp_meths, &comp_meths_len, &data, &datalen) != 1) goto end;
format_print(fp, format, indent, "CompressionMethods\n");
for (i = 0; i < comp_meths_len; i++) {
format_print(fp, format, indent + 4, "%s (%d)\n",
tls_compression_method_name(comp_meths[i]), comp_meths[i]);
}
if (datalen > 0) {
if (tls_uint16array_from_bytes(&exts, &exts_len, &data, &datalen) != 1) goto end;
//tls_extensions_print(fp, exts, exts_len, format, indent);
tls13_extensions_print(fp, format, indent, TLS_handshake_client_hello, exts, exts_len);
}
if (datalen > 0) {
error_print();
return -1;
}
ret = 1;
end:
return ret;
}
int tls_server_hello_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
int ret = -1;
uint16_t protocol;
const uint8_t *random;
const uint8_t *session_id;
uint16_t cipher_suite;
uint8_t comp_meth;
const uint8_t *exts;
size_t session_id_len, exts_len;
format_print(fp, format, indent, "ServerHello\n"); indent += 4;
if (tls_uint16_from_bytes(&protocol, &data, &datalen) != 1) goto bad;
format_print(fp, format, indent, "Version: %s (%d.%d)\n",
tls_protocol_name(protocol), protocol >> 8, protocol & 0xff);
if (tls_array_from_bytes(&random, 32, &data, &datalen) != 1) goto bad;
tls_random_print(fp, random, format, indent);
if (tls_uint8array_from_bytes(&session_id, &session_id_len, &data, &datalen) != 1) goto bad;
format_bytes(fp, format, indent, "SessionID", session_id, session_id_len);
if (tls_uint16_from_bytes(&cipher_suite, &data, &datalen) != 1) goto bad;
format_print(fp, format, indent, "CipherSuite: %s (0x%04x)\n",
tls_cipher_suite_name(cipher_suite), cipher_suite);
if (tls_uint8_from_bytes(&comp_meth, &data, &datalen) != 1) goto bad;
format_print(fp, format, indent, "CompressionMethod: %s (%d)\n",
tls_compression_method_name(comp_meth), comp_meth);
if (datalen > 0) {
if (tls_uint16array_from_bytes(&exts, &exts_len, &data, &datalen) != 1) goto bad;
//format_bytes(fp, format, indent, "Extensions : ", exts, exts_len); // FIXME: extensions_print
//tls_extensions_print(fp, exts, exts_len, format, indent);
tls13_extensions_print(fp, format, indent, TLS_handshake_server_hello, exts, exts_len);
}
return 1;
bad:
error_print();
return -1;
}
int tls_certificate_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
const uint8_t *certs;
size_t certslen;
const uint8_t *der;
size_t derlen;
if (tls_uint24array_from_bytes(&certs, &certslen, &data, &datalen) != 1) {
error_print();
return -1;
}
while (certslen > 0) {
if (tls_uint24array_from_bytes(&der, &derlen, &certs, &certslen) != 1) {
error_print();
return -1;
}
(void)x509_cert_print(fp, format, indent, "Certificate", der, derlen);
(void)x509_cert_to_pem(der, derlen, fp);
}
if (datalen) {
error_print();
return -1;
}
return 1;
}
int tls_server_key_exchange_ecdhe_print(FILE *fp, const uint8_t *data, size_t datalen,
int format, int indent)
{
uint8_t curve_type;
uint16_t curve;
const uint8_t *octets;
size_t octetslen;
uint16_t sig_alg;
const uint8_t *sig;
size_t siglen;
format_print(fp, format, indent, "ServerKeyExchange\n");
indent += 4;
format_print(fp, format, indent, "ServerECDHParams\n");
format_print(fp, format, indent + 4, "curve_params\n");
if (tls_uint8_from_bytes(&curve_type, &data, &datalen) != 1) {
error_print();
return -1;
}
format_print(fp, format, indent + 8, "curve_type: %s (%d)\n",
tls_curve_type_name(curve_type), curve_type);
if (tls_uint16_from_bytes(&curve, &data, &datalen) != 1) {
error_print();
return -1;
}
format_print(fp, format, indent + 8, "named_curve: %s (%d)\n",
tls_named_curve_name(curve), curve);
if (tls_uint8array_from_bytes(&octets, &octetslen, &data, &datalen) != 1) {
error_print();
return -1;
}
format_bytes(fp, format, indent + 4, "point", octets, octetslen);
if (tls_uint16_from_bytes(&sig_alg, &data, &datalen) != 1) {
error_print();
return -1;
}
format_print(fp, format, indent, "SignatureScheme: %s (0x%04x)\n",
tls_signature_scheme_name(sig_alg), sig_alg);
if (tls_uint16array_from_bytes(&sig, &siglen, &data, &datalen) != 1) {
error_print();
return -1;
}
format_bytes(fp, format, indent, "Siganture", sig, siglen);
if (datalen > 0) {
error_print();
return -1;
}
return 1;
}
//
// 这个函数依赖输入的cipher_suite，才能判断如何解析ServerKeyExchange
// 显然这个信息无法通过基础的format提供了，并且这个底层的信息一直需要从最上层提供，这就非常不好了
// 目前来看，cipher_suite是否能够提供足够的信息呢？
// ServerKeyExchange, ClientKeyExchange的格式是由cipher_suite决定的
int tls_server_key_exchange_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
int cipher_suite = (format >> 8) & 0xffff;
switch (cipher_suite) {
case TLS_cipher_ecc_sm4_cbc_sm3:
case TLS_cipher_ecc_sm4_gcm_sm3:
if (tlcp_server_key_exchange_pke_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_cipher_ecdhe_sm4_cbc_sm3:
case TLS_cipher_ecdhe_sm4_gcm_sm3:
if (tls_server_key_exchange_ecdhe_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
default:
error_print();
return -1;
}
return 1;
}
int tls_certificate_subjects_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *d, size_t dlen)
{
const uint8_t *a;
size_t alen;
format_print(fp, fmt, ind, "%s\n", label);
ind += 4;
while (dlen) {
const uint8_t *name;
size_t namelen;
if (tls_uint16array_from_bytes(&a, &alen, &d, &dlen) != 1) {
error_print();
return -1;
}
if (asn1_sequence_from_der(&name, &namelen, &a, &alen) != 1
|| asn1_length_is_zero(alen) != 1) {
error_print();
return -1;
}
x509_name_print(fp, fmt, ind, "DistinguishedName", name, namelen);
}
return 1;
}
int tls_certificate_request_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
const uint8_t *cert_types;
const uint8_t *ca_names;
size_t cert_types_len, ca_names_len;
format_print(fp, format, indent, "CertificateRequest\n"); indent += 4;
if (tls_uint8array_from_bytes(&cert_types, &cert_types_len, &data, &datalen) != 1) goto bad;
format_print(fp, format, indent, "cert_types\n");
while (cert_types_len--) {
int cert_type = *cert_types++;
format_print(fp, format, indent + 4, "%s (%d)\n", tls_cert_type_name(cert_type), cert_type);
}
if (tls_uint16array_from_bytes(&ca_names, &ca_names_len, &data, &datalen) != 1) goto bad;
tls_certificate_subjects_print(fp, format, indent, "CAnames", ca_names, ca_names_len);
return 1;
bad:
error_print();
return -1;
}
int tls_server_hello_done_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
if (datalen > 0) {
error_print();
return -1;
}
return 1;
}
int tls_client_key_exchange_pke_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
const uint8_t *enced_pms;
size_t enced_pms_len;
if (tls_uint16array_from_bytes(&enced_pms, &enced_pms_len, &data, &datalen) != 1) {
error_print();
return -1;
}
format_bytes(fp, format, indent, "EncryptedPreMasterSecret", enced_pms, enced_pms_len);
return 1;
}
int tls_client_key_exchange_ecdhe_print(FILE *fp, const uint8_t *data, size_t datalen,
int format, int indent)
{
const uint8_t *octets;
size_t octetslen;
format_print(fp, format, indent, "ClientKeyExchange\n");
indent += 4;
if (tls_uint8array_from_bytes(&octets, &octetslen, &data, &datalen) != 1) {
error_print();
return -1;
}
format_bytes(fp, format, indent, "ecdh_Yc", octets, octetslen);
if (datalen > 0) {
error_print();
return -1;
}
return 1;
}
int tls_client_key_exchange_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
int cipher_suite = (format >> 8) & 0xffff;
switch (cipher_suite) {
case TLS_cipher_ecc_sm4_cbc_sm3:
case TLS_cipher_ecc_sm4_gcm_sm3:
if (tls_client_key_exchange_pke_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_cipher_ecdhe_sm4_cbc_sm3:
case TLS_cipher_ecdhe_sm4_gcm_sm3:
if (tls_client_key_exchange_ecdhe_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
default:
error_print();
return -1;
}
return 1;
}
int tls_certificate_verify_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
format_print(fp, format, indent, "CertificateVerify\n");
format_bytes(fp, format, indent + 4, "Signature", data, datalen);
return 1;
}
int tls_finished_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
format_print(fp, format, indent, "Finished\n");
indent += 4;
format_bytes(fp, format, indent, "verify_data", data, datalen);
return 1;
}
// FIXME: 应该将这个函数融合到 tls_handshake_print 中
int tls13_handshake_print(FILE *fp, int fmt, int ind, const uint8_t *handshake, size_t handshake_len)
{
const uint8_t *p = handshake;
size_t len = handshake_len;
uint8_t type;
const uint8_t *data;
size_t datalen;
if (tls_uint8_from_bytes(&type, &handshake, &handshake_len) != 1
|| tls_uint24array_from_bytes(&data, &datalen, &handshake, &handshake_len) != 1
|| tls_length_is_zero(handshake_len) != 1) {
error_print();
return -1;
}
switch (type) {
case TLS_handshake_certificate:
case TLS_handshake_certificate_request:
case TLS_handshake_certificate_verify:
format_print(fp, fmt, ind, "Handshake\n");
ind += 4;
format_print(fp, fmt, ind, "Type: %s (%d)\n", tls_handshake_type_name(type), type);
format_print(fp, fmt, ind, "Length: %zu\n", datalen);
break;
}
switch (type) {
case TLS_handshake_certificate:
return tls13_certificate_print(fp, fmt, ind, data, datalen);
case TLS_handshake_certificate_request:
return tls13_certificate_request_print(fp, fmt, ind, data, datalen);
case TLS_handshake_certificate_verify:
return tls13_certificate_verify_print(fp, fmt, ind, data, datalen);
}
return tls_handshake_print(fp, p, len, fmt, ind);
}
// 这个是有问题的，因为TLS 1.3的证书和TLS 1.2是不一样的
int tls_handshake_print(FILE *fp, const uint8_t *handshake, size_t handshakelen, int format, int indent)
{
const uint8_t *cp = handshake;
uint8_t type;
const uint8_t *data;
uint24_t datalen;
format_print(fp, format, indent, "Handshake\n");
indent += 4;
if (tls_uint8_from_bytes(&type, &cp, &handshakelen) != 1) {
error_print();
return -1;
}
format_print(fp, format, indent, "Type: %s (%d)\n", tls_handshake_type_name(type), type);
if (tls_uint24_from_bytes(&datalen, &cp, &handshakelen) != 1) {
error_print();
return -1;
}
format_print(fp, format, indent, "Length: %zu\n", datalen);
if (tls_array_from_bytes(&data, datalen, &cp, &handshakelen) != 1) {
error_print();
return -1;
}
switch (type) {
case TLS_handshake_hello_request:
if (tls_hello_request_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_client_hello:
if (tls_client_hello_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_server_hello:
if (tls_server_hello_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_encrypted_extensions:
tls13_encrypted_extensions_print(fp, format, indent, data, datalen);
break;
case TLS_handshake_certificate:
if (tls_certificate_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_server_key_exchange:
if (tls_server_key_exchange_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_certificate_request:
if (tls_certificate_request_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_server_hello_done:
if (tls_server_hello_done_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_client_key_exchange:
if (tls_client_key_exchange_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_certificate_verify:
if (tls_certificate_verify_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
case TLS_handshake_finished:
if (tls_finished_print(fp, data, datalen, format, indent) != 1)
{ error_print(); return -1; } break;
default:
error_print();
return -1;
}
return 1;
}
int tls_alert_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
if (datalen != 2) {
error_print();
return -1;
}
format_print(fp, format, indent, "Alert:\n");
indent += 4;
format_print(fp, format, indent, "Level: %s (%d)\n", tls_alert_level_name(data[0]), data[0]);
format_print(fp, format, indent, "Reason: %s (%d)\n", tls_alert_description_text(data[1]), data[1]);
return 1;
}
int tls_change_cipher_spec_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
if (datalen != 1) {
error_print();
return -1;
}
format_print(fp, format, indent, "ChangeCipherSpec\n");
indent += 4;
format_print(fp, format, indent, "type : %s (%d)\n", tls_change_cipher_spec_text(data[0]), data[0]);
return 1;
}
int tls_application_data_print(FILE *fp, const uint8_t *data, size_t datalen, int format, int indent)
{
format_bytes(fp, format, indent, "ApplicationData", data, datalen);
return 1;
}
int tls13_record_print(FILE *fp, int format, int indent, const uint8_t *record, size_t recordlen)
{
const uint8_t *data;
size_t datalen;
int protocol;
format |= TLS_cipher_sm4_gcm_sm3 << 8;
if (!fp || !record || recordlen < 5) {
error_print();
return -1;
}
protocol = tls_record_protocol(record);
format_print(fp, format, indent, "Record\n"); indent += 4;
format_print(fp, format, indent, "ContentType: %s (%d)\n", tls_record_type_name(record[0]), record[0]);
format_print(fp, format, indent, "Version: %s (%d.%d)\n", tls_protocol_name(protocol), protocol >> 8, protocol & 0xff);
format_print(fp, format, indent, "Length: %d\n", tls_record_data_length(record));
data = tls_record_data(record);
datalen = tls_record_data_length(record);
if (recordlen < tls_record_length(record)) {
error_print();
return -1;
}
// 最高字节设置后强制打印记录原始数据
if (format >> 24) {
format_bytes(fp, format, indent, "Data", data, datalen);
fprintf(fp, "\n");
return 1;
}
switch (record[0]) {
case TLS_record_handshake:
tls13_handshake_print(fp, format, indent, data, datalen);
break;
case TLS_record_alert:
if (tls_alert_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_record_change_cipher_spec:
if (tls_change_cipher_spec_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_record_application_data:
if (tls_application_data_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
default:
error_print();
return -1;
}
recordlen -= tls_record_length(record);
if (recordlen) {
format_print(fp, 0, 0, "DataLeftInRecord: %zu\n", recordlen);
}
fprintf(fp, "\n");
return 1;
}
// FIXME: 根据RFC来考虑这个函数的参数,从底向上逐步修改每个函数的接口参数
// 当消息为ClientKeyExchange,ServerKeyExchange，需要密码套件中的密钥交换算法信息
// 当消息为加密的Finished，记录类型为Handshake，但是记录负载数据中没有Handshake头
// 注意：这里的recordlen 是冗余的，要容忍recordlen的错误
//
// supported_versions 的格式由handshake_type 是否为ClientHello, ServerHello 决定
// record中是包含这个信息的，但是在exts中没有这个信息
int tls_print_record(FILE *fp, int fmt, int ind, const char *label, TLS_CONNECT *conn)
{
tls_record_print(fp, conn->record, conn->recordlen, fmt, ind);
return 1;
}
int tls_record_print(FILE *fp, const uint8_t *record, size_t recordlen, int format, int indent)
{
const uint8_t *data;
size_t datalen;
int protocol;
if (!fp || !record || recordlen < 5) {
error_print();
return -1;
}
protocol = tls_record_protocol(record);
format_print(fp, format, indent, "Record\n"); indent += 4;
format_print(fp, format, indent, "ContentType: %s (%d)\n", tls_record_type_name(record[0]), record[0]);
format_print(fp, format, indent, "Version: %s (%d.%d)\n", tls_protocol_name(protocol), protocol >> 8, protocol & 0xff);
format_print(fp, format, indent, "Length: %d\n", tls_record_data_length(record));
data = tls_record_data(record);
datalen = tls_record_data_length(record);
if (recordlen < tls_record_length(record)) {
error_print();
return -1;
}
switch (record[0]) {
case TLS_record_handshake:
if (tls_handshake_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_record_alert:
if (tls_alert_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_record_change_cipher_spec:
if (tls_change_cipher_spec_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
case TLS_record_application_data:
if (tls_application_data_print(fp, data, datalen, format, indent) != 1) {
error_print();
return -1;
}
break;
default:
error_print();
return -1;
}
recordlen -= tls_record_length(record);
if (recordlen) {
format_print(fp, 0, 0, "DataLeftInRecord: %zu\n", recordlen);
}
fprintf(fp, "\n");
return 1;
}
int tls_secrets_print(FILE *fp,
const uint8_t *pre_master_secret, size_t pre_master_secret_len,
const uint8_t client_random[32], const uint8_t server_random[32],
const uint8_t master_secret[48],
const uint8_t *key_block, size_t key_block_len,
int format, int indent)
{
// 应该检查一下key_block_len的值，判断是否支持，或者算法选择, 或者要求输入一个cipher_suite参数
// 这个函数不支持GCM模式套件，使用GCM模式时key_block_len更短
// 可以考虑通过key_block_len判断CBC还是GCM，或者在参数上增加cipher_suite
// FIXME: 如果增加了GCM套件，需要更新这个函数
format_bytes(stderr, format, indent, "pre_master_secret", pre_master_secret, pre_master_secret_len);
format_bytes(stderr, format, indent, "client_random", client_random, 32);
format_bytes(stderr, format, indent, "server_random", server_random, 32);
format_bytes(stderr, format, indent, "master_secret", master_secret, 48);
format_bytes(stderr, format, indent, "client_write_mac_key", key_block, 32);
format_bytes(stderr, format, indent, "server_write_mac_key", key_block + 32, 32);
format_bytes(stderr, format, indent, "client_write_enc_key", key_block + 64, 16);
format_bytes(stderr, format, indent, "server_write_enc_key", key_block + 80, 16);
format_print(stderr, format, indent, "\n");
return 1;
}
int tls_encrypted_record_print(FILE *fp, const uint8_t *record, size_t recordlen, int format, int indent)
{
int protocol;
if (!fp || !record || recordlen < 5) {
error_print();
return -1;
}
protocol = tls_record_protocol(record);
format_print(fp, format, indent, "EncryptedRecord\n"); indent += 4;
format_print(fp, format, indent, "ContentType: %s (%d)\n", tls_record_type_name(record[0]), record[0]);
format_print(fp, format, indent, "Version: %s (%d.%d)\n", tls_protocol_name(protocol), protocol >> 8, protocol & 0xff);
format_print(fp, format, indent, "Length: %d\n", tls_record_data_length(record));
format_bytes(fp, format, indent, "EncryptedData", tls_record_data(record), tls_record_data_length(record));
fprintf(fp, "\n");
return 1;
}
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