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/*
* PIMv6 main()
* Copyright (C) 2021 David Lamparter for NetDEF, Inc.
* Copyright (C) 2008 Everton da Silva Marques (pim_main.c)
*
* 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 "lib/vrf.h"
#include "lib/filter.h"
#include "lib/plist.h"
#include "lib/routemap.h"
#include "lib/routing_nb.h"
#include "lib/privs.h"
#include "lib/sigevent.h"
#include "lib/libfrr.h"
#include "lib/version.h"
#include "pimd.h"
#include "pim_instance.h"
#include "pim_errors.h"
#include "pim_iface.h"
#include "pim_zebra.h"
zebra_capabilities_t _caps_p[] = {
ZCAP_SYS_ADMIN,
ZCAP_NET_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 void pim6_terminate(void);
static void pim6_sighup(void)
{
zlog_info("SIGHUP received, ignoring");
}
static void pim6_sigint(void)
{
zlog_notice("Terminating on signal SIGINT");
pim6_terminate();
exit(1);
}
static void pim6_sigterm(void)
{
zlog_notice("Terminating on signal SIGTERM");
pim6_terminate();
exit(1);
}
static void pim6_sigusr1(void)
{
zlog_rotate();
}
struct frr_signal_t pim6d_signals[] = {
{
.signal = SIGHUP,
.handler = &pim6_sighup,
},
{
.signal = SIGUSR1,
.handler = &pim6_sigusr1,
},
{
.signal = SIGINT,
.handler = &pim6_sigint,
},
{
.signal = SIGTERM,
.handler = &pim6_sigterm,
},
};
static const struct frr_yang_module_info *const pim6d_yang_modules[] = {
&frr_filter_info,
&frr_interface_info,
&frr_route_map_info,
&frr_vrf_info,
&frr_routing_info,
};
/* clang-format off */
FRR_DAEMON_INFO(pim6d, PIM6,
.vty_port = 0,
.flags = FRR_NO_SPLIT_CONFIG,
.proghelp = "Protocol Independent Multicast (RFC7761) for IPv6",
.signals = pim6d_signals,
.n_signals = array_size(pim6d_signals),
.privs = &pimd_privs,
.yang_modules = pim6d_yang_modules,
.n_yang_modules = array_size(pim6d_yang_modules),
);
/* clang-format on */
int main(int argc, char **argv, char **envp)
{
static struct option longopts[] = {
{},
};
frr_preinit(&pim6d_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);
}
}
pim_router_init();
/* TODO PIM6: temporary enable all debugs, remove later in PIMv6 work */
router->debugs = ~0U;
access_list_init();
prefix_list_init();
/*
* Initializations
*/
pim_error_init();
pim_vrf_init();
#if 0
prefix_list_add_hook(pim_prefix_list_update);
prefix_list_delete_hook(pim_prefix_list_update);
pim_route_map_init();
pim_init();
#endif
/*
* Initialize zclient "update" and "lookup" sockets
*/
pim_iface_init();
/* TODO PIM6: next line is temporary since pim_cmd_init is disabled */
if_cmd_init(NULL);
#if 0
pim_zebra_init();
pim_bfd_init();
pim_mlag_init();
hook_register(routing_conf_event,
routing_control_plane_protocols_name_validate);
routing_control_plane_protocols_register_vrf_dependency();
#endif
frr_config_fork();
frr_run(router->master);
/* never reached */
return 0;
}
static void pim6_terminate(void)
{
pim_vrf_terminate();
pim_router_terminate();
prefix_list_reset();
access_list_reset();
frr_fini();
}
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