pim_main.c

/*
 * PIM for Quagga
 * Copyright (C) 2008  Everton da Silva Marques
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <zebra.h>

#include "log.h"
#include "privs.h"
#include "version.h"
#include <getopt.h>
#include "command.h"
#include "thread.h"
#include <signal.h>

#include "memory.h"
#include "vrf.h"
#include "filter.h"
#include "vty.h"
#include "sigevent.h"
#include "version.h"
#include "prefix.h"
#include "plist.h"
#include "vrf.h"
#include "libfrr.h"

#include "pimd.h"
#include "pim_instance.h"
#include "pim_version.h"
#include "pim_signals.h"
#include "pim_zebra.h"
#include "pim_msdp.h"
#include "pim_iface.h"
#include "pim_bfd.h"
#include "pim_mlag.h"
#include "pim_errors.h"

extern struct host host;

struct option longopts[] = {{0}};

/* pimd privileges */
zebra_capabilities_t _caps_p[] = {
	ZCAP_NET_ADMIN, ZCAP_SYS_ADMIN, ZCAP_NET_RAW, ZCAP_BIND,
};

/* pimd privileges to run with */
struct zebra_privs_t pimd_privs = {
#if defined(FRR_USER) && defined(FRR_GROUP)
	.user = FRR_USER,
	.group = FRR_GROUP,
#endif
#ifdef VTY_GROUP
	.vty_group = VTY_GROUP,
#endif
	.caps_p = _caps_p,
	.cap_num_p = array_size(_caps_p),
	.cap_num_i = 0};

static const struct frr_yang_module_info *const pimd_yang_modules[] = {
	&frr_interface_info,
};

FRR_DAEMON_INFO(pimd, PIM, .vty_port = PIMD_VTY_PORT,

		.proghelp = "Implementation of the PIM routing protocol.",

		.signals = pimd_signals,
		.n_signals = 4 /* XXX array_size(pimd_signals) XXX*/,

		.privs = &pimd_privs, .yang_modules = pimd_yang_modules,
		.n_yang_modules = array_size(pimd_yang_modules), )


int main(int argc, char **argv, char **envp)
{
	frr_preinit(&pimd_di, argc, argv);
	frr_opt_add("", longopts, "");

	/* this while just reads the options */
	while (1) {
		int opt;

		opt = frr_getopt(argc, argv, NULL);

		if (opt == EOF)
			break;

		switch (opt) {
		case 0:
			break;
		default:
			frr_help_exit(1);
			break;
		}
	}

	pim_router_init();

	/*
	 * Initializations
	 */
	pim_error_init();
	pim_vrf_init();
	access_list_init();
	prefix_list_init();
	prefix_list_add_hook(pim_prefix_list_update);
	prefix_list_delete_hook(pim_prefix_list_update);

	pim_route_map_init();
	pim_init();

	/*
	 * Initialize zclient "update" and "lookup" sockets
	 */
	if_zapi_callbacks(pim_ifp_create, pim_ifp_up,
			  pim_ifp_down, pim_ifp_destroy);
	pim_zebra_init();
	pim_bfd_init();
	pim_mlag_init();

	frr_config_fork();

#ifdef PIM_DEBUG_BYDEFAULT
	zlog_notice("PIM_DEBUG_BYDEFAULT: Enabling all debug commands");
	PIM_DO_DEBUG_PIM_EVENTS;
	PIM_DO_DEBUG_PIM_PACKETS;
	PIM_DO_DEBUG_PIM_TRACE;
	PIM_DO_DEBUG_IGMP_EVENTS;
	PIM_DO_DEBUG_IGMP_PACKETS;
	PIM_DO_DEBUG_IGMP_TRACE;
	PIM_DO_DEBUG_ZEBRA;
#endif

#ifdef PIM_CHECK_RECV_IFINDEX_SANITY
	zlog_notice(
		"PIM_CHECK_RECV_IFINDEX_SANITY: will match sock/recv ifindex");
#ifdef PIM_REPORT_RECV_IFINDEX_MISMATCH
	zlog_notice(
		"PIM_REPORT_RECV_IFINDEX_MISMATCH: will report sock/recv ifindex mismatch");
#endif
#endif

#ifdef PIM_UNEXPECTED_KERNEL_UPCALL
	zlog_notice(
		"PIM_UNEXPECTED_KERNEL_UPCALL: report unexpected kernel upcall");
#endif

	frr_run(router->master);

	/* never reached */
	return 0;
}