cockpit/src/tls/main.c

124 lines
3.2 KiB
C

/*
* This file is part of Cockpit.
*
* Copyright (C) 2019 Red Hat, Inc.
*
* Cockpit is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* Cockpit is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Cockpit; If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <argp.h>
#include <err.h>
#include <stddef.h>
#include <stdlib.h>
#include <common/cockpitwebcertificate.h>
#include "utils.h"
#include "server.h"
#include "connection.h"
/* CLI arguments */
struct arguments {
uint16_t port;
bool no_tls;
int idle_timeout;
};
#define OPT_NO_TLS 1000
#define OPT_IDLE_TIMEOUT 1001
static int
arg_parse_int (char *arg, struct argp_state *state, int min, int max, const char *error_msg)
{
char *endptr = NULL;
long num = strtol (arg, &endptr, 10);
if (!*arg || *endptr != '\0' || num < min || num > max)
argp_error (state, "%s: %s", error_msg, arg);
return (int) num;
}
/* Parse a single option. */
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
struct arguments *arguments = state->input;
switch (key)
{
case OPT_NO_TLS:
arguments->no_tls = true;
break;
case 'p':
arguments->port = arg_parse_int (arg, state, 1, UINT16_MAX, "Invalid port");
break;
case OPT_IDLE_TIMEOUT:
arguments->idle_timeout = arg_parse_int (arg, state, 0, INT_MAX, "Invalid idle timeout");
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp_option options[] = {
{"no-tls", OPT_NO_TLS, 0, 0, "Don't use TLS" },
{"port", 'p', "PORT", 0, "Local port to bind to (9090 if unset)" },
{"idle-timeout", OPT_IDLE_TIMEOUT, "SECONDS", 0, "Time after which to exit if there are no connections; 0 to run forever (default: 90)" },
{ 0 }
};
static const struct argp argp = {
.options = options,
.parser = parse_opt,
.doc = "cockpit-tls -- TLS terminating proxy for cockpit-ws",
};
int
main (int argc, char **argv)
{
struct arguments arguments;
/* default option values */
arguments.no_tls = false;
arguments.port = 9090;
arguments.idle_timeout = 90;
argp_parse (&argp, argc, argv, 0, 0, &arguments);
server_init ("/run/cockpit/wsinstance", arguments.idle_timeout, arguments.port);
if (!arguments.no_tls)
{
char *error = NULL;
char *certfile = cockpit_certificate_locate (&error);
if (error)
errx (1, "Could not locate server certificate: %s", error);
debug (SERVER, "Using certificate %s", certfile);
/* TODO: Add cockpit.conf option to enable client-certificate auth, once we support that */
connection_crypto_init (certfile, NULL, GNUTLS_CERT_IGNORE);
free (certfile);
}
server_run ();
server_cleanup ();
return 0;
}