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2e550edc350062a32b9ee29416fb38888fb59fa8
GmSSL/tools/tls13_client.c
Zhi Guan 2e550edc35 Update TLS 1.3
2026-04-12 11:48:15 +08:00

495 lines
13 KiB
C
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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/hex.h>
#include <gmssl/tls.h>
#include <gmssl/error.h>
static const char *http_get =
"GET / HTTP/1.1\r\n"
"Hostname: aaa\r\n"
"\r\n\r\n";
static const char *options = "-host str [-port num] [-cacert file] [-cert file -key file -pass str]";
static const char *help =
"Options\n"
"\n"
" -host str Server's hostname\n"
" -port num Server's port number, default 443\n"
" -cipher_suite str Supported 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"
" -max_key_exchanges num Number of key exchanges in key_share extension\n"
" -cacert file Root CA certificate\n"
" -cert file Client's certificate chain in PEM format\n"
" -key file Client's encrypted private key in PEM format\n"
" -pass str Password to decrypt private key\n"
" -psk_ke Support PSK-only key exchange\n"
" -psk_dhe_ke Support PSK with (EC)DHE key exchange\n"
" -psk_identity str Identity of pre_shared_key\n"
" -psk hex Pre-shared key in HEX format\n"
" -sess_in Load server's session ticket file\n"
" -sess_out Save server's session ticket file\n"
" -early_data file Send early data, -psk_ke and/or -psk_dhe_ke should be set\n"
"\n"
"CipherSuites\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\n"
" sm2p256v1\n"
" prime256v1\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\n"
" gmssl tls13_client -host 127.0.0.1 -port 4430 -cacert rootcacert.pem\n"
" -sess_in session.bin -sess_out session.bin\n"
"\n";
int tls13_client_main(int argc, char *argv[])
{
int ret = -1;
char *prog = argv[0];
char *host = NULL;
int port = 443;
char *cacertfile = NULL;
char *certfile = NULL;
char *keyfile = NULL;
char *pass = NULL;
struct hostent *hp;
struct sockaddr_in server;
tls_socket_t sock = -1;
TLS_CTX ctx;
TLS_CONNECT conn;
char buf[1024] = {0};
size_t len = sizeof(buf);
char send_buf[1024] = {0};
char *sess_in = NULL;
char *sess_out = NULL;
char *psk_identity = NULL;
char *psk = NULL;
uint8_t psk_buf[32];
size_t psk_len;
char *early_data_file = NULL;
FILE *early_data_fp = NULL;
int max_early_data_size = 0;
char *cipher_suite;
int cipher;
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 *max_key_exchanges = NULL;
int max_key_exchanges_cnt;
char *sig_alg_name;
int sig_alg;
int sig_algs[4];
size_t sig_algs_cnt = 0;
int psk_ke = 0;
int psk_dhe_ke = 0;
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "usage: %s %s\n", prog, options);
return 1;
}
while (argc >= 1) {
if (!strcmp(*argv, "-help")) {
printf("usage: %s %s\n", prog, options);
printf("%s\n", help);
return 0;
} else if (!strcmp(*argv, "-host")) {
if (--argc < 1) goto bad;
host = *(++argv);
} else if (!strcmp(*argv, "-port")) {
if (--argc < 1) goto bad;
port = atoi(*(++argv));
} else if (!strcmp(*argv, "-cacert")) {
if (--argc < 1) goto bad;
cacertfile = *(++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, "-sess_in")) {
if (--argc < 1) goto bad;
sess_in = *(++argv);
} else if (!strcmp(*argv, "-sess_out")) {
if (--argc < 1) goto bad;
sess_out = *(++argv);
} else if (!strcmp(*argv, "-psk_identity")) {
if (--argc < 1) goto bad;
psk_identity = *(++argv);
} else if (!strcmp(*argv, "-psk")) {
if (--argc < 1) goto bad;
psk = *(++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, "-early_data")) {
if (--argc < 1) goto bad;
early_data_file = *(++argv);
} 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 = *(++argv);
if ((cipher = tls_cipher_suite_from_name(cipher_suite)) == 0) {
error_print();
fprintf(stderr, "%s: cipher suite '%s' not supported\n", prog, cipher_suite);
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;
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 if (!strcmp(*argv, "-max_key_exchanges")) {
if (--argc < 1) goto bad;
max_key_exchanges = *(++argv);
max_key_exchanges_cnt = atoi(max_key_exchanges);
if (max_key_exchanges_cnt < 0) {
error_print();
return -1;
}
} else {
fprintf(stderr, "%s: invalid option '%s'\n", prog, *argv);
return 1;
bad:
fprintf(stderr, "%s: option '%s' argument required\n", prog, *argv);
return 0;
}
argc--;
argv++;
}
if (!host) {
fprintf(stderr, "%s: '-in' option required\n", prog);
return -1;
}
if (tls_socket_lib_init() != 1) {
error_print();
return -1;
}
if (!(hp = gethostbyname(host))) {
//herror("tls13_client: '-host' invalid");
goto end;
}
memset(&ctx, 0, sizeof(ctx));
memset(&conn, 0, sizeof(conn));
server.sin_addr = *((struct in_addr *)hp->h_addr_list[0]);
server.sin_family = AF_INET;
server.sin_port = htons(port);
if (tls_socket_create(&sock, AF_INET, SOCK_STREAM, 0) != 1) {
fprintf(stderr, "%s: socket create error\n", prog);
goto end;
}
if (tls_socket_connect(sock, &server) != 1) {
fprintf(stderr, "%s: socket connect error\n", prog);
goto end;
}
if (tls_ctx_init(&ctx, TLS_protocol_tls13, TLS_client_mode) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
if (!cipher_suites_cnt) {
error_print();
fprintf(stderr, "%s: option '-cipher_suite' required\n", prog);
goto end;
}
if (tls_ctx_set_cipher_suites(&ctx, cipher_suites, cipher_suites_cnt) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
if (supported_groups_cnt > 0) {
if (tls_ctx_set_supported_groups(&ctx, supported_groups, supported_groups_cnt) != 1) {
error_print();
return -1;
}
}
if (max_key_exchanges) {
tls13_ctx_set_max_key_exchanges(&ctx, max_key_exchanges_cnt);
}
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) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
}
if (certfile) {
if (tls_ctx_set_certificate_and_key(&ctx, certfile, keyfile, pass) != 1) {
fprintf(stderr, "%s: context init error\n", prog);
goto end;
}
}
if (tls_init(&conn, &ctx) != 1) {
fprintf(stderr, "%s: error\n", prog);
goto end;
}
if (sess_in) {
if (tls13_add_pre_shared_key_from_file(&conn, sess_in) != 1) {
error_print();
return -1;
}
tls13_enable_pre_shared_key(&conn, 1);
}
if (sess_out) {
if (tls13_set_session_outfile(&conn, sess_out) != 1) {
error_print();
goto end;
}
}
if (psk_ke || psk_dhe_ke) {
if (!sess_in && !psk) {
fprintf(stderr, "%s: -sess_in or -psk is required\n", prog);
error_print();
return -1;
}
tls13_set_psk_key_exchange_modes(&conn, psk_ke, psk_dhe_ke);
fprintf(stderr, "conn->psk_key_exchange_modes: %d\n", conn.key_exchange_modes);
}
if (psk) {
if (!psk_identity) {
fprintf(stderr, "%s: -psk_identity is required for every -psk\n", prog);
error_print();
return -1;
}
if (strlen(psk) != sizeof(psk_buf) * 2) {
error_print();
return -1;
}
if (hex_to_bytes(psk, strlen(psk), psk_buf, &psk_len) != 1) {
error_print();
return -1;
}
// support multiple pairs
if (tls13_add_pre_shared_key(&conn, DIGEST_sm3(), (uint8_t *)psk_identity, strlen(psk_identity), psk_buf, psk_len, 0) != 1) {
error_print();
return -1;
}
tls13_enable_pre_shared_key(&conn, 1);
}
if (early_data_file) {
uint8_t early_data[8192];
size_t early_data_len;
if (!psk_ke && !psk_dhe_ke) {
error_print();
fprintf(stderr, "%s: -early_data need -psk_ke and/or -psk_dhe_ke set\n", prog);
return -1;
}
if (!(early_data_fp = fopen(early_data_file, "rb"))) {
error_print();
return -1;
}
early_data_len = fread(early_data, 1, sizeof(early_data), early_data_fp);
if (early_data_len) {
if (tls13_set_early_data(&conn, early_data, early_data_len) != 1) {
fclose(early_data_fp);
error_print();
return -1;
}
}
fclose(early_data_fp);
}
if (tls_set_socket(&conn, sock) != 1
|| tls_do_handshake(&conn) != 1) {
fprintf(stderr, "%s: error\n", prog);
goto end;
}
for (;;) {
fd_set fds;
size_t sentlen;
if (!fgets(send_buf, sizeof(send_buf), stdin)) {
if (feof(stdin)) {
tls_shutdown(&conn);
goto end;
} else {
continue;
}
}
if (tls13_send(&conn, (uint8_t *)send_buf, strlen(send_buf), &sentlen) != 1) {
fprintf(stderr, "%s: send error\n", prog);
goto end;
}
FD_ZERO(&fds);
FD_SET(conn.sock, &fds);
#ifdef WIN32
#else
FD_SET(fileno(stdin), &fds);
#endif
if (select((int)(conn.sock + 1), // In WinSock2, select() ignore the this arg
&fds, NULL, NULL, NULL) < 0) {
fprintf(stderr, "%s: select failed\n", prog);
goto end;
}
if (FD_ISSET(conn.sock, &fds)) {
for (;;) {
memset(buf, 0, sizeof(buf));
if (tls13_recv(&conn, (uint8_t *)buf, sizeof(buf), &len) != 1) {
goto end;
}
fwrite(buf, 1, len, stdout);
fflush(stdout);
// FIXME: change tls13_recv API
if (conn.datalen == 0) {
break;
}
}
}
#ifdef WIN32
#else
if (FD_ISSET(fileno(stdin), &fds)) {
memset(send_buf, 0, sizeof(send_buf));
if (!fgets(send_buf, sizeof(send_buf), stdin)) {
if (feof(stdin)) {
tls_shutdown(&conn);
goto end;
} else {
continue;
}
}
if (tls13_send(&conn, (uint8_t *)send_buf, strlen(send_buf), &sentlen) != 1) {
fprintf(stderr, "%s: send error\n", prog);
goto end;
}
}
#endif
}
end:
if (sock != -1) tls_socket_close(sock);
tls_ctx_cleanup(&ctx);
tls_cleanup(&conn);
return 0;
}
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