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GmSSL/tools/tls13_server.c
Zhi Guan b548e98d34 Update TLS 1.3
2026-04-28 11:50:15 +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 <errno.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/mem.h>
#include <gmssl/hex.h>
#include <gmssl/sm2.h>
#include <gmssl/tls.h>
#include <gmssl/error.h>
static const char *options = "[-port num] -cert file -key file -pass str [-cacert file]";
static const char *help =
"Options\n"
"\n"
" -port num Listening port number, default 443\n"
" -cipher_suite str Client's cipher suites, may appear multiple times, higher priority first\n"
" -supported_group str Supported elliptic curves, may appear multiple times, higher priority first\n"
" -sig_alg str Supported signature algorithms\n"
" -cert file Server's certificate chain in PEM format\n"
" -key file Server's encrypted private key in PEM format\n"
" -pass str Password to decrypt private key\n"
" -cacert file CA certificate for client certificate verification\n"
" -new_session_ticket num Send NewSessionTicket <num> times\n"
" -ticket_key hex Session ticket encrypt/decrypt key in HEX format\n"
" -psk_ke Support PSK-only key exchange\n"
" -psk_dhe_ke Support PSK with (EC)DHE key exchange\n"
" -psk_identity str PSK Identity\n"
" -psk_cipher_suite str PSK cipher suite\n"
" -psk_key hex PSK key in HEX format, of PSK hash length\n"
" -early_data Accept EarlyData, support 0-RTT\n"
" -max_early_data_size num Set extension max_early_data_size\n"
"\n"
" -cipher_suite options\n"
" TLS_SM4_GCM_SM3 TLS 1.3\n"
" TLS_AES_128_GCM_SHA256 TLS 1.3\n"
" TLS_ECC_SM4_CBC_SM3 TLCP\n"
" TLS_ECDHE_SM4_CBC_SM3 TLCP TLS 1.2\n"
" TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 TLS 1.2\n"
"\n"
" -supported_group options\n"
" sm2p256v1\n"
" prime256v1\n"
"\n"
" -sig_alg options\n"
" sm2sig_sm3\n"
" ecdsa_secp256r1_sha256\n"
"\n"
"Examples\n"
"\n"
" gmssl sm2keygen -pass 1234 -out rootcakey.pem\n"
" gmssl certgen -C CN -ST Beijing -L Haidian -O PKU -OU CS -CN ROOTCA -days 3650 \\\n"
" -key rootcakey.pem -pass 1234 -out rootcacert.pem \\\n"
" -key_usage keyCertSign -key_usage cRLSign -ca\n"
"\n"
" gmssl sm2keygen -pass 1234 -out cakey.pem\n"
" gmssl reqgen -C CN -ST Beijing -L Haidian -O PKU -OU CS -CN \"Sub CA\" \\\n"
" -key cakey.pem -pass 1234 -out careq.pem\n"
" gmssl reqsign -in careq.pem -days 365 -key_usage keyCertSign -cacert rootcacert.pem -key rootcakey.pem -pass 1234 \\\n"
" -out cacert.pem -ca -path_len_constraint 0\n"
"\n"
" gmssl sm2keygen -pass 1234 -out signkey.pem\n"
" gmssl reqgen -C CN -ST Beijing -L Haidian -O PKU -OU CS -CN localhost -key signkey.pem -pass 1234 -out signreq.pem\n"
" gmssl reqsign -in signreq.pem -days 365 -key_usage digitalSignature -cacert cacert.pem -key cakey.pem -pass 1234 -out signcert.pem\n"
"\n"
" cat signcert.pem > certs.pem\n"
" cat cacert.pem >> certs.pem\n"
"\n"
" sudo gmssl tls13_server -port 4430 -cert certs.pem -key signkey.pem -pass 1234 -cipher_suite TLS_SM4_GCM_SM3 -supported_group sm2p256v1 -sig_alg sm2sig_sm3\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cacert rootcacert.pem -cipher_suite TLS_SM4_GCM_SM3 -supported_group sm2p256v1 -sig_alg sm2sig_sm3\n"
"\n"
" sudo gmssl tls13_server -port 4430 -cert certs.pem -key signkey.pem -pass 1234 \\\n"
" -cipher_suite TLS_SM4_GCM_SM3 -cipher_suite TLS_AES_128_GCM_SHA256 \\\n"
" -supported_group sm2p256v1 -supported_group prime256v1 \\\n"
" -sig_alg sm2sig_sm3 -sig_alg ecdsa_secp256r1_sha256\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cacert rootcacert.pem \\\n"
" -cipher_suite TLS_SM4_GCM_SM3 -cipher_suite TLS_AES_128_GCM_SHA256 \\\n"
" -supported_group sm2p256v1 -supported_group prime256v1 \\\n"
" -sig_alg sm2sig_sm3 -sig_alg ecdsa_secp256r1_sha256 \\\n"
" -max_key_exchanges 2 \\\n"
" -server_name \\\n"
" -signature_algorithms_cert \\\n"
" -status_request \\\n"
" -post_handshake_auth \\\n"
" -ct\n"
"\n"
" PSK=1122334455667788112233445566778811223344556677881122334455667788\n"
" sudo gmssl tls13_server -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK\n"
"\n"
" sudo gmssl tls13_server -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -early_data\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -early_data early_data.txt\n"
"\n"
" sudo gmssl tls13_server -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -new_session_ticket 2\n"
"\n"
" sudo gmssl tls13_server -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_dhe_ke -supported_group sm2p256v1 -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -early_data\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_dhe_ke -supported_group sm2p256v1 -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -early_data early_data.txt\n"
"\n"
" sudo gmssl tls13_server -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -supported_group sm2p256v1 -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -new_session_ticket 2 -ticket_key $TICKET_KEY\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_dhe_ke -supported_group sm2p256v1 -psk_identity 001 -psk_cipher_suite TLS_SM4_GCM_SM3 -psk_key $PSK -sess_out session.bin\n"
" sudo gmssl tls13_server -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -ticket_key $TICKET_KEY\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cipher_suite TLS_SM4_GCM_SM3 -psk_ke -sess_in session.bin\n"
"\n";
int tls13_server_main(int argc , char **argv)
{
int ret = 1;
char *prog = argv[0];
int port = 443;
char *certfile = NULL;
char *keyfile = NULL;
char *pass = NULL;
char *cacertfile = NULL;
int server_ciphers[] = { TLS_cipher_sm4_gcm_sm3, };
TLS_CTX ctx;
TLS_CONNECT conn;
char buf[1600] = {0};
size_t len = sizeof(buf);
tls_socket_t sock;
tls_socket_t conn_sock;
struct sockaddr_in server_addr;
struct sockaddr_in client_addr;
int new_session_ticket = 0;
char *ticket_key = NULL;
uint8_t ticket_key_buf[16];
int psk_ke = 0;
int psk_dhe_ke = 0;
// external psk
char *psk_identities[16];
size_t psk_identities_cnt = 0;
char *psk_cipher_suites[16];
size_t psk_cipher_suites_cnt = 0;
char *psk_keys[16];
size_t psk_keys_cnt = 0;
int early_data = 0;
int max_early_data_size = 0;
char *cipher_suite_name;
int cipher_suite;
int cipher_suites[4];
size_t cipher_suites_cnt = 0;
char *supported_group_name;
int supported_group;
int supported_groups[4];
size_t supported_groups_cnt = 0;
char *sig_alg_name;
int sig_alg;
int sig_algs[4];
size_t sig_algs_cnt = 0;
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "usage: %s %s\n", prog, options);
return 1;
}
while (argc > 0) {
if (!strcmp(*argv, "-help")) {
printf("usage: %s %s\n", prog, options);
printf("%s\n", help);
return 0;
} else if (!strcmp(*argv, "-port")) {
if (--argc < 1) goto bad;
port = atoi(*(++argv));
} else if (!strcmp(*argv, "-cert")) {
if (--argc < 1) goto bad;
certfile = *(++argv);
} else if (!strcmp(*argv, "-key")) {
if (--argc < 1) goto bad;
keyfile = *(++argv);
} else if (!strcmp(*argv, "-pass")) {
if (--argc < 1) goto bad;
pass = *(++argv);
} else if (!strcmp(*argv, "-cacert")) {
if (--argc < 1) goto bad;
cacertfile = *(++argv);
} else if (!strcmp(*argv, "-new_session_ticket")) {
if (--argc < 1) goto bad;
new_session_ticket = atoi(*(++argv));
} else if (!strcmp(*argv, "-ticket_key")) {
if (--argc < 1) goto bad;
ticket_key = *(++argv);
} else if (!strcmp(*argv, "-psk_ke")) {
psk_ke = 1;
} else if (!strcmp(*argv, "-psk_dhe_ke")) {
psk_dhe_ke = 1;
} else if (!strcmp(*argv, "-psk_identity")) {
if (--argc < 1) goto bad;
if (psk_identities_cnt > sizeof(psk_identities)/sizeof(psk_identities[0])) {
error_print();
return -1;
}
psk_identities[psk_identities_cnt++] = *(++argv);
} else if (!strcmp(*argv, "-psk_cipher_suite")) {
if (--argc < 1) goto bad;
if (psk_cipher_suites_cnt > sizeof(psk_cipher_suites)/sizeof(psk_cipher_suites[0])) {
error_print();
return -1;
}
psk_cipher_suites[psk_cipher_suites_cnt++] = *(++argv);
} else if (!strcmp(*argv, "-psk_key")) {
if (--argc < 1) goto bad;
if (psk_keys_cnt > sizeof(psk_keys)/sizeof(psk_keys[0])) {
error_print();
return -1;
}
psk_keys[psk_keys_cnt++] = *(++argv);
} else if (!strcmp(*argv, "-early_data")) {
early_data = 1;
} else if (!strcmp(*argv, "-max_early_data_size")) {
if (--argc < 1) goto bad;
max_early_data_size = atoi(*(++argv));
} else if (!strcmp(*argv, "-cipher_suite")) {
if (--argc < 1) goto bad;
cipher_suite_name = *(++argv);
if ((cipher_suite = tls_cipher_suite_from_name(cipher_suite_name)) == 0) {
error_print();
fprintf(stderr, "%s: cipher suite '%s' not supported\n", prog, cipher_suite_name);
return -1;
}
if (cipher_suites_cnt >= sizeof(cipher_suites)/sizeof(cipher_suites[0])) {
error_print();
fprintf(stderr, "%s: too much cipher suites\n", prog);
return -1;
}
cipher_suites[cipher_suites_cnt] = cipher_suite;
cipher_suites_cnt++;
} else if (!strcmp(*argv, "-supported_group")) {
if (--argc < 1) goto bad;
supported_group_name = *(++argv);
if ((supported_group = tls_named_curve_from_name(supported_group_name)) == 0) {
error_print();
fprintf(stderr, "%s: supported_group '%s' not supported\n", prog, supported_group_name);
return -1;
}
if (supported_groups_cnt >= sizeof(supported_groups)/sizeof(supported_groups[0])) {
error_print();
fprintf(stderr, "%s: too much supported_group\n", prog);
return -1;
}
supported_groups[supported_groups_cnt++] = supported_group;
} else if (!strcmp(*argv, "-sig_alg")) {
if (--argc < 1) goto bad;
sig_alg_name = *(++argv);
if ((sig_alg = tls_signature_scheme_from_name(sig_alg_name)) == 0) {
error_print();
fprintf(stderr, "%s: sig_alg '%s' not supported\n", prog, sig_alg_name);
return -1;
}
if (sig_algs_cnt >= sizeof(sig_algs)/sizeof(sig_algs[0])) {
error_print();
fprintf(stderr, "%s: too much sig_algs\n", prog);
return -1;
}
sig_algs[sig_algs_cnt++] = sig_alg;
} else {
fprintf(stderr, "%s: invalid option '%s'\n", prog, *argv);
return 1;
bad:
fprintf(stderr, "%s: option '%s' argument required\n", prog, *argv);
return 1;
}
argc--;
argv++;
}
/*
if (!cipher_suites_cnt) {
error_print();
goto end;
}
*/
if (tls_socket_lib_init() != 1) {
error_print();
return -1;
}
memset(&ctx, 0, sizeof(ctx));
memset(&conn, 0, sizeof(conn));
if (tls_ctx_init(&ctx, TLS_protocol_tls13, TLS_server_mode) != 1) {
error_print();
return -1;
}
if (tls_ctx_set_cipher_suites(&ctx, cipher_suites, cipher_suites_cnt) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
if (certfile) {
if (!keyfile) {
fprintf(stderr, "%s: '-key' option required\n", prog);
return 1;
}
if (!pass) {
fprintf(stderr, "%s: '-pass' option required\n", prog);
return 1;
}
if (tls_ctx_add_certificate_chain_and_key(&ctx, certfile, keyfile, pass) != 1) {
error_print();
return -1;
}
}
if (supported_groups_cnt > 0) {
if (tls_ctx_set_supported_groups(&ctx, supported_groups, supported_groups_cnt) != 1) {
error_print();
return -1;
}
}
if (sig_algs_cnt > 0) {
if (tls_ctx_set_signature_algorithms(&ctx, sig_algs, sig_algs_cnt) != 1) {
error_print();
return -1;
}
}
if (cacertfile) {
if (tls_ctx_set_ca_certificates(&ctx, cacertfile, TLS_DEFAULT_VERIFY_DEPTH) != 1) {
error_print();
return -1;
}
}
if (psk_ke || psk_dhe_ke) {
if (tls13_ctx_set_psk_key_exchange_modes(&ctx, psk_ke, psk_dhe_ke) != 1) {
error_print();
return -1;
}
}
if (new_session_ticket < 0) {
error_print();
return -1;
}
if (new_session_ticket > 0) {
if (!ticket_key) {
error_print();
return -1;
}
if (tls13_ctx_enable_new_session_ticket(&ctx, new_session_ticket) != 1) {
error_print();
return -1;
}
}
if (ticket_key) {
size_t ticket_key_len;
if (strlen(ticket_key) != sizeof(ticket_key_buf) * 2) {
error_print();
return -1;
}
if (hex_to_bytes(ticket_key, strlen(ticket_key), ticket_key_buf, &ticket_key_len) != 1) {
error_print();
return -1;
}
if (tls13_ctx_set_session_ticket_key(&ctx, ticket_key_buf, ticket_key_len) != 1) {
error_print();
return -1;
}
tls13_enable_pre_shared_key(&conn, 1);
}
if (early_data) {
ctx.early_data = 1;
}
if (max_early_data_size > 0) {
if (tls13_ctx_set_max_early_data_size(&ctx, max_early_data_size) != 1) {
error_print();
return -1;
}
}
if (tls_socket_create(&sock, AF_INET, SOCK_STREAM, 0) != 1) {
fprintf(stderr, "%s: socket create error\n", prog);
goto end;
}
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = INADDR_ANY;
server_addr.sin_port = htons(port);
if (tls_socket_bind(sock, &server_addr) != 1) {
fprintf(stderr, "%s: socket bind error\n", prog);
goto end;
}
if (tls13_init(&conn, &ctx) != 1) {
error_print();
return -1;
}
puts("start listen ...\n");
tls_socket_listen(sock, 1);
restart:
//client_addrlen = sizeof(client_addr);
if (tls_socket_accept(sock, &client_addr, &conn_sock) != 1) {
fprintf(stderr, "%s: socket accept error\n", prog);
goto end;
}
puts("socket connected\n");
if (tls_set_socket(&conn, conn_sock) != 1) {
error_print();
return -1;
}
if (psk_keys_cnt) {
const uint32_t obfuscated_ticket_age = 0;
size_t i;
if (psk_identities_cnt != psk_keys_cnt || psk_cipher_suites_cnt != psk_keys_cnt) {
error_print();
return -1;
}
for (i = 0; i < psk_keys_cnt; i++) {
int psk_cipher_suite;
const BLOCK_CIPHER *psk_cipher;
const DIGEST *psk_digest;
uint8_t psk_key[64];
size_t psk_key_len;
if (!(psk_cipher_suite = tls_cipher_suite_from_name(psk_cipher_suites[i]))) {
error_print();
return -1;
}
if (tls13_cipher_suite_get(psk_cipher_suite, &psk_cipher, &psk_digest) != 1) {
error_print();
return -1;
}
if (strlen(psk_keys[i]) != psk_digest->digest_size * 2) {
error_print();
return -1;
}
if (hex_to_bytes(psk_keys[i], strlen(psk_keys[i]), psk_key, &psk_key_len) != 1) {
error_print();
return -1;
}
if (tls13_add_pre_shared_key(&conn, (uint8_t *)psk_identities[i], strlen(psk_identities[i]),
psk_key, psk_key_len, psk_cipher_suite, obfuscated_ticket_age) != 1) {
error_print();
return -1;
}
}
tls13_enable_pre_shared_key(&conn, 1);
}
if (tls_do_handshake(&conn) != 1) {
error_print();
return -1;
}
for (;;) {
int rv;
size_t sentlen;
do {
len = sizeof(buf);
if ((rv = tls13_recv(&conn, (uint8_t *)buf, sizeof(buf), &len)) != 1) {
if (rv < 0) fprintf(stderr, "%s: recv failure\n", prog);
else fprintf(stderr, "%s: Disconnected by remote\n", prog);
//close(conn.sock);
tls_cleanup(&conn);
goto restart;
}
} while (!len);
if (tls13_send(&conn, (uint8_t *)buf, len, &sentlen) != 1) {
fprintf(stderr, "%s: send failure, close connection\n", prog);
tls_socket_close(conn.sock);
goto end;
}
}
end:
return ret;
}
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