abc/GmSSL
1
0
Fork 0
mirror of https://github.com/guanzhi/GmSSL.git synced 2026-06-19 19:33:38 +08:00
Code Issues Packages Projects Releases Wiki Activity
Files
6f42fdf31f1ff4e4a26af51120c8a8d6c5f579cf
GmSSL/tools/tlcp_client.c
Zhi Guan fb93fba5ff Clean TLS_CTX/CONNECT
2026-06-12 12:01:30 +08:00

462 lines
12 KiB
C
Raw Blame History

/*
* Copyright 2014-2024 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/tls.h>
#include <gmssl/x509.h>
#include <gmssl/error.h>
#define TIMEOUT_SECONDS 1
static const char *usage =
"-host str [-port num] [-cacert pem]"
" [-cert pem -key pem -pass str]"
" [-certout pem]"
" [-get path]"
" [-alpn str]"
" [-trusted_ca_keys]"
" [-quiet]";
static const char *help =
"Options\n"
"\n"
" -host str Domain name or IP address of remote host\n"
" -port num Port number of remote host, 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"
" -cacert pem Trusted CA certificate(s) in PEM format\n"
" -verify_depth num Certificate verification depth\n"
" -cert pem Client certificate(s) in PEM format\n"
" -key pem Private key of client certificate in PEM format\n"
" -pass password Password of encrypted private key\n"
" -client_cert_optional Allow client send empty Certificate\n"
" -get path Send a GET request with given path of URI\n"
" -certout pem Save server certificates to a PEM file\n"
" -server_name str Send server_name (SNI) request\n"
" -trusted_ca_keys Send trusted_ca_keys request\n"
" -alpn str Application protocol name, may appear multiple times, higher priority first\n"
" -status_request Send status_request (OCSP Stapling) request\n"
" -quiet Without printing any status message\n"
"\n"
#include "tlcp_help.h"
"\n";
int tlcp_client_main(int argc, char *argv[])
{
int ret = -1;
char *prog = argv[0];
char *host = NULL;
int port = 443;
int cipher_suites[4];
size_t cipher_suites_cnt = 0;
int supported_groups[4];
size_t supported_groups_cnt = 0;
int sig_algs[4];
size_t sig_algs_cnt = 0;
char *cacertfile = NULL;
int verify_depth = TLS_DEFAULT_VERIFY_DEPTH;
char *certfile = NULL;
char *keyfile = NULL;
char *pass = NULL;
char *server_name = NULL;
int trusted_ca_keys = 0;
char *alpn_protocols[4];
size_t alpn_protocols_cnt = 0;
int client_cert_optional = 0;
char *get = NULL;
char *certoutfile = NULL;
int quiet = 0;
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};
int read_stdin = 1;
argc--;
argv++;
if (argc < 1) {
fprintf(stderr, "usage: gmssl %s %s\n", prog, usage);
return 1;
}
while (argc >= 1) {
if (!strcmp(*argv, "-help")) {
printf("usage: gmssl %s %s\n\n", prog, usage);
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, "-cipher_suite")) {
char *cipher_suite_name;
int cipher_suite;
if (cipher_suites_cnt >= sizeof(cipher_suites)/sizeof(cipher_suites[0])) {
fprintf(stderr, "%s: too many -cipher_suite options\n", prog);
return -1;
}
if (--argc < 1) goto bad;
cipher_suite_name = *(++argv);
if ((cipher_suite = tls_cipher_suite_from_name(cipher_suite_name)) == 0) {
fprintf(stderr, "%s: invalid -cipher_suite '%s' value\n", prog, cipher_suite_name);
return -1;
}
cipher_suites[cipher_suites_cnt] = cipher_suite;
cipher_suites_cnt++;
} else if (!strcmp(*argv, "-cacert")) {
if (--argc < 1) goto bad;
cacertfile = *(++argv);
} else if (!strcmp(*argv, "-verify_depth")) {
if (--argc < 1) goto bad;
verify_depth = atoi(*(++argv));
if (verify_depth < 1) {
fprintf(stderr, "%s: invalid -verify_depth value '%d'\n", prog, verify_depth);
return -1;
}
} else if (!strcmp(*argv, "-supported_group")) {
char *supported_group_name;
int supported_group;
if (supported_groups_cnt >= sizeof(supported_groups)/sizeof(supported_groups[0])) {
fprintf(stderr, "%s: too many -supported_group options\n", prog);
return -1;
}
if (--argc < 1) goto bad;
supported_group_name = *(++argv);
if ((supported_group = tls_named_curve_from_name(supported_group_name)) == 0) {
fprintf(stderr, "%s: -supported_group '%s' not supported\n", prog, supported_group_name);
return -1;
}
supported_groups[supported_groups_cnt++] = supported_group;
} else if (!strcmp(*argv, "-sig_alg")) {
char *sig_alg_name;
int sig_alg;
if (sig_algs_cnt >= sizeof(sig_algs)/sizeof(sig_algs[0])) {
fprintf(stderr, "%s: too many -sig_alg options\n", prog);
return -1;
}
if (--argc < 1) goto bad;
sig_alg_name = *(++argv);
if ((sig_alg = tls_signature_scheme_from_name(sig_alg_name)) == 0) {
fprintf(stderr, "%s: -sig_alg '%s' not supported\n", prog, sig_alg_name);
return -1;
}
sig_algs[sig_algs_cnt++] = sig_alg;
} 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, "-server_name")) {
if (--argc < 1) goto bad;
server_name = *(++argv);
} else if (!strcmp(*argv, "-trusted_ca_keys")) {
trusted_ca_keys = 1;
} else if (!strcmp(*argv, "-alpn")) {
if (alpn_protocols_cnt >= sizeof(alpn_protocols)/sizeof(alpn_protocols[0])) {
fprintf(stderr, "%s: too many -alpn options\n", prog);
return -1;
}
if (--argc < 1) goto bad;
alpn_protocols[alpn_protocols_cnt++] = *(++argv);
} else if (!strcmp(*argv, "-client_cert_optional")) {
client_cert_optional = 1;
} else if (!strcmp(*argv, "-get")) {
if (--argc < 1) goto bad;
get = *(++argv);
} else if (!strcmp(*argv, "-certout")) {
if (--argc < 1) goto bad;
certoutfile = *(++argv);
} else if (!strcmp(*argv, "-quiet")) {
quiet = 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: option '-host' missing\n", prog);
return -1;
}
if (!cipher_suites_cnt) {
fprintf(stderr, "%s: option '-cipher_suite' missing\n", prog);
return -1;
}
if (tls_socket_lib_init() != 1) {
error_print();
return -1;
}
if (tls_ctx_init(&ctx, TLS_protocol_tlcp, TLS_client_mode) != 1) {
error_print();
return -1;
}
if (tls_ctx_set_cipher_suites(&ctx, cipher_suites, cipher_suites_cnt) != 1) {
error_print();
goto end;
}
if (trusted_ca_keys) {
if (tls_ctx_enable_trusted_ca_keys(&ctx, 1) != 1) {
error_print();
goto end;
}
}
if (alpn_protocols_cnt) {
if (tls_ctx_set_application_layer_protocol_negotiation(&ctx,
alpn_protocols, alpn_protocols_cnt) != 1) {
error_print();
goto end;
}
}
if (cacertfile) {
if (tls_ctx_set_ca_certificates(&ctx, cacertfile, verify_depth) != 1) {
fprintf(stderr, "%s: failed to load CA certificate\n", prog);
goto end;
}
}
if (supported_groups_cnt > 0) {
if (tls_ctx_set_supported_groups(&ctx, supported_groups, supported_groups_cnt) != 1) {
error_print();
goto end;
}
}
if (sig_algs_cnt > 0) {
if (tls_ctx_set_signature_algorithms(&ctx, sig_algs, sig_algs_cnt) != 1) {
error_print();
goto end;
}
}
if (certfile) {
if (!keyfile) {
fprintf(stderr, "%s: option '-key' missing\n", prog);
goto end;
}
if (!pass) {
fprintf(stderr, "%s: option '-pass' missing\n", prog);
goto end;
}
if (tls_ctx_set_certificate_and_key(&ctx, certfile, keyfile, pass) != 1) {
fprintf(stderr, "%s: failed to load client certificate\n", prog);
goto end;
}
}
// quiet/verbose
if (tls_init(&conn, &ctx) != 1) {
error_print();
goto end;
}
if (server_name) {
if (tls_set_server_name(&conn, (uint8_t *)server_name, strlen(server_name)) != 1) {
error_print();
goto end;
}
}
if (tls_socket_create(&sock, AF_INET, SOCK_STREAM, 0) != 1) {
fprintf(stderr, "%s: faild to open socket\n", prog);
goto end;
}
if (!(hp = gethostbyname(host))) {
fprintf(stderr, "%s: failed to parse host name '%s'\n", prog, host);
goto end;
}
server.sin_addr = *((struct in_addr *)hp->h_addr_list[0]);
server.sin_family = AF_INET;
server.sin_port = htons(port);
if (tls_socket_connect(sock, &server) != 1) {
fprintf(stderr, "%s: failed to connect socket\n", prog);
goto end;
}
if (tls_set_socket(&conn, sock) != 1) {
error_print();
goto end;
}
if (tls_do_handshake(&conn) != 1) {
fprintf(stderr, "%s: error\n", prog);
goto end;
}
if (certoutfile) {
FILE *certoutfp;
if (!(certoutfp = fopen(certoutfile, "wb"))) {
fprintf(stderr, "%s: open '%s' failure\n", prog, certoutfile);
perror("fopen");
goto end;
}
if (x509_certs_to_pem(conn.peer_cert_chain, conn.peer_cert_chain_len, certoutfp) != 1) {
fprintf(stderr, "%s: x509_certs_to_pem error\n", prog);
fclose(certoutfp);
goto end;
}
fclose(certoutfp);
}
if (get) {
struct timeval timeout;
timeout.tv_sec = TIMEOUT_SECONDS;
timeout.tv_usec = 0;
snprintf(buf, sizeof(buf), "GET %s HTTP/1.1\r\nHost: %s\r\n\r\n", get, host);
if (tls_send(&conn, (uint8_t *)buf, strlen(buf), &len) != 1) {
fprintf(stderr, "%s: send error\n", prog);
goto end;
}
// use timeout to close the HTTP connection
if (setsockopt(conn.sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof(timeout)) != 0) {
perror("setsockopt");
fprintf(stderr, "%s: set socket timeout error\n", prog);
goto end;
}
for (;;) {
int rv;
rv = tls_recv(&conn, (uint8_t *)buf, sizeof(buf), &len);
if (rv == 1) {
fwrite(buf, 1, len, stdout);
fflush(stdout);
} else if (rv == 0) {
fprintf(stderr, "%s: TLCP connection is closed by remote host\n", prog);
goto end;
} else if (rv == -EAGAIN) {
// when timeout, tls_recv return -EAGAIN (-11)
tls_shutdown(&conn);
ret = 0;
goto end;
} else {
fprintf(stderr, "%s: tls_recv error\n", prog);
goto end;
}
}
read_stdin = 0;
}
for (;;) {
fd_set fds;
FD_ZERO(&fds);
FD_SET(conn.sock, &fds);
if (read_stdin) {
#ifdef WIN32
if (fgets(buf, sizeof(buf), stdin)) {
if (tls_send(&conn, (uint8_t *)buf, strlen(buf), &len) != 1) {
fprintf(stderr, "%s: send error\n", prog);
goto end;
}
} else {
if (!feof(stdin)) {
fprintf(stderr, "%s: length of input line exceeds buffer size\n", prog);
goto end;
}
read_stdin = 0;
}
#else
FD_SET(STDIN_FILENO, &fds); // in POSIX, first arg type is int
#endif
}
if (select(conn.sock + 1, &fds, NULL, NULL, NULL) < 0) {
fprintf(stderr, "%s: select error\n", prog);
goto end;
}
#ifdef WIN32
#else
if (read_stdin && FD_ISSET(STDIN_FILENO, &fds)) {
if (fgets(buf, sizeof(buf), stdin)) {
if (tls_send(&conn, (uint8_t *)buf, strlen(buf), &len) != 1) {
fprintf(stderr, "%s: send error\n", prog);
goto end;
}
} else {
if (!feof(stdin)) {
fprintf(stderr, "%s: length of input line exceeds buffer size\n", prog);
goto end;
}
read_stdin = 0;
}
}
#endif
if (FD_ISSET(conn.sock, &fds)) {
int rv;
rv = tls_recv(&conn, (uint8_t *)buf, sizeof(buf), &len);
if (rv == 1) {
fwrite(buf, 1, len, stdout);
fflush(stdout);
} else if (rv == 0) {
fprintf(stderr, "Connection closed by remote host\n");
goto end;
} else if (rv == -EAGAIN) {
// should not happen
error_print();
goto end;
} else {
error_print();
fprintf(stderr, "%s: tls_recv error\n", prog);
goto end;
}
}
}
end:
// FIXME: clean ctx and connection ASAP, as Ctrl-C is not handled
if (sock != -1) tls_socket_close(sock);
tls_ctx_cleanup(&ctx);
tls_cleanup(&conn);
return ret;
}
Reference in New Issue View Git Blame Copy Permalink