155 lines
3.7 KiB
C++
155 lines
3.7 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "Listen.hxx"
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#include "Main.hxx"
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#include "Client.hxx"
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#include "conf.h"
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#include "ServerSocket.hxx"
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#include <string.h>
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#include <assert.h>
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#ifdef ENABLE_SYSTEMD_DAEMON
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#include <systemd/sd-daemon.h>
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#endif
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "listen"
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#define DEFAULT_PORT 6600
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static struct server_socket *listen_socket;
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int listen_port;
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static void
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listen_callback(int fd, const struct sockaddr *address,
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size_t address_length, int uid, G_GNUC_UNUSED void *ctx)
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{
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client_new(*main_loop, *global_partition,
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fd, address, address_length, uid);
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}
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static bool
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listen_add_config_param(unsigned int port,
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const struct config_param *param,
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GError **error_r)
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{
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assert(param != NULL);
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if (0 == strcmp(param->value, "any")) {
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return server_socket_add_port(listen_socket, port, error_r);
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} else if (param->value[0] == '/') {
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return server_socket_add_path(listen_socket, param->value,
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error_r);
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} else {
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return server_socket_add_host(listen_socket, param->value,
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port, error_r);
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}
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}
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static bool
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listen_systemd_activation(GError **error_r)
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{
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#ifdef ENABLE_SYSTEMD_DAEMON
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int n = sd_listen_fds(true);
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if (n <= 0) {
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if (n < 0)
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g_warning("sd_listen_fds() failed: %s",
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g_strerror(-n));
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return false;
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}
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for (int i = SD_LISTEN_FDS_START, end = SD_LISTEN_FDS_START + n;
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i != end; ++i)
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if (!server_socket_add_fd(listen_socket, i, error_r))
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return false;
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return true;
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#else
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(void)error_r;
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return false;
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#endif
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}
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bool
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listen_global_init(GError **error_r)
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{
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int port = config_get_positive(CONF_PORT, DEFAULT_PORT);
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const struct config_param *param =
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config_get_next_param(CONF_BIND_TO_ADDRESS, NULL);
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bool success;
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GError *error = NULL;
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listen_socket = server_socket_new(listen_callback, NULL);
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if (listen_systemd_activation(&error))
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return true;
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if (error != NULL) {
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g_propagate_error(error_r, error);
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return false;
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}
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if (param != NULL) {
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/* "bind_to_address" is configured, create listeners
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for all values */
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do {
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success = listen_add_config_param(port, param, &error);
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if (!success) {
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g_propagate_prefixed_error(error_r, error,
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"Failed to listen on %s (line %i): ",
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param->value, param->line);
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return false;
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}
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param = config_get_next_param(CONF_BIND_TO_ADDRESS,
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param);
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} while (param != NULL);
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} else {
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/* no "bind_to_address" configured, bind the
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configured port on all interfaces */
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success = server_socket_add_port(listen_socket, port, error_r);
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if (!success) {
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g_propagate_prefixed_error(error_r, error,
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"Failed to listen on *:%d: ",
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port);
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return false;
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}
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}
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if (!server_socket_open(listen_socket, error_r))
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return false;
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listen_port = port;
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return true;
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}
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void listen_global_finish(void)
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{
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g_debug("listen_global_finish called");
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assert(listen_socket != NULL);
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server_socket_free(listen_socket);
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}
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