147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
/*
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* main.c
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* This file is part of Network-inador
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*
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* Copyright (C) 2019, 2020 - Félix Arreola Rodríguez
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*
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* Network-inador 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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* Network-inador 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
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* along with Network-inador; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <assert.h>
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#include <asm/types.h>
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#include <sys/socket.h>
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#include <linux/netlink.h>
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#include <glib.h>
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#include <netlink/socket.h>
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#include <netlink/msg.h>
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#include "common.h"
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#include "manager.h"
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#include "interfaces.h"
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#include "netlink-events.h"
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#include "ip-address.h"
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#include "bridge.h"
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/* Usados para salir en caso de una señal */
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static int sigterm_pipe_fds[2] = { -1, -1 };
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static void _init_handle (NetworkInadorHandle *handle) {
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assert (handle != NULL);
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memset (handle, 0, sizeof (NetworkInadorHandle));
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handle->interfaces = NULL;
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}
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static void _sigterm_handler (int signum) {
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//fprintf (stderr, "SIGTERM SIGINT Handler\n");
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if (sigterm_pipe_fds[1] >= 0) {
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if (write (sigterm_pipe_fds[1], "", 1) == -1 ) {
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//fprintf (stderr, "Write to sigterm_pipe failed.\n");
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}
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close (sigterm_pipe_fds[1]);
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sigterm_pipe_fds[1] = -1;
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}
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}
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static gboolean _main_quit_handler (GIOChannel *source, GIOCondition cond, gpointer data) {
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GMainLoop *loop = (GMainLoop *) data;
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g_main_loop_quit (loop);
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}
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static void _main_setup_signal (void *loop) {
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struct sigaction act;
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sigset_t empty_mask;
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/* Preparar el pipe para la señal de cierre */
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if (pipe (sigterm_pipe_fds) != 0) {
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perror ("Failed to create SIGTERM pipe");
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sigterm_pipe_fds[0] = -1;
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}
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/* Instalar un manejador de señales para SIGTERM */
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sigemptyset (&empty_mask);
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act.sa_mask = empty_mask;
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act.sa_flags = 0;
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act.sa_handler = &_sigterm_handler;
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if (sigaction (SIGTERM, &act, NULL) < 0) {
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perror ("Failed to register SIGTERM handler");
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}
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if (sigaction (SIGINT, &act, NULL) < 0) {
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perror ("Failed to register SIGINT handler");
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}
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if (sigterm_pipe_fds[0] != -1) {
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GIOChannel *io;
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io = g_io_channel_unix_new (sigterm_pipe_fds[0]);
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g_io_channel_set_close_on_unref (io, TRUE);
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g_io_add_watch (io, G_IO_IN | G_IO_PRI | G_IO_HUP | G_IO_ERR, _main_quit_handler, loop);
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}
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}
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int main (int argc, char *argv[]) {
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NetworkInadorHandle handle;
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GMainLoop *loop = NULL;
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struct nl_sock * sock_req;
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#if !defined(GLIB_VERSION_2_36)
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g_type_init ();
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#endif
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_init_handle (&handle);
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/* Crear el socket de peticiones */
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sock_req = nl_socket_alloc ();
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if (nl_connect (sock_req, NETLINK_ROUTE) != 0) {
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perror ("Falló conectar netlink socket\n");
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return -1;
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}
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handle.nl_sock_route = sock_req;
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/* Crear el socket que escucha eventos */
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netlink_events_setup (&handle);
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loop = g_main_loop_new (NULL, FALSE);
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_main_setup_signal (loop);
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interfaces_init (&handle);
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manager_init (&handle);
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g_main_loop_run (loop);
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/* Detener la llegada de eventos */
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netlink_events_clear (&handle);
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// nl_socket_free???
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return 0;
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}
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