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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* STATICd - main code
* Copyright (C) 2018 Cumulus Networks, Inc.
* Donald Sharp
*/
#include <zebra.h>
#include <lib/version.h>
#include "getopt.h"
#include "frrevent.h"
#include "command.h"
#include "log.h"
#include "memory.h"
#include "privs.h"
#include "sigevent.h"
#include "libfrr.h"
#include "vrf.h"
#include "nexthop.h"
#include "filter.h"
#include "routing_nb.h"
#include "static_vrf.h"
#include "static_vty.h"
#include "static_routes.h"
#include "static_zebra.h"
#include "static_debug.h"
#include "static_nb.h"
#include "mgmt_be_client.h"
char backup_config_file[256];
bool mpls_enabled;
zebra_capabilities_t _caps_p[] = {
};
struct zebra_privs_t static_privs = {
#if defined(FRR_USER) && defined(FRR_GROUP)
.user = FRR_USER,
.group = FRR_GROUP,
#endif
#if defined(VTY_GROUP)
.vty_group = VTY_GROUP,
#endif
.caps_p = _caps_p,
.cap_num_p = array_size(_caps_p),
.cap_num_i = 0};
struct option longopts[] = { { 0 } };
/* Master of threads. */
struct event_loop *master;
uintptr_t mgmt_lib_hndl;
static struct frr_daemon_info staticd_di;
/* SIGHUP handler. */
static void sighup(void)
{
zlog_info("SIGHUP received");
vty_read_config(NULL, staticd_di.config_file, config_default);
}
/* SIGINT / SIGTERM handler. */
static void sigint(void)
{
zlog_notice("Terminating on signal");
/* Disable BFD events to avoid wasting processing. */
bfd_protocol_integration_set_shutdown(true);
mgmt_be_client_lib_destroy(mgmt_lib_hndl);
static_vrf_terminate();
static_zebra_stop();
frr_fini();
exit(0);
}
/* SIGUSR1 handler. */
static void sigusr1(void)
{
zlog_rotate();
}
struct frr_signal_t static_signals[] = {
{
.signal = SIGHUP,
.handler = &sighup,
},
{
.signal = SIGUSR1,
.handler = &sigusr1,
},
{
.signal = SIGINT,
.handler = &sigint,
},
{
.signal = SIGTERM,
.handler = &sigint,
},
};
static void static_mgmt_be_client_connect(uintptr_t lib_hndl,
uintptr_t usr_data, bool connected)
{
(void)usr_data;
assert(lib_hndl == mgmt_lib_hndl);
zlog_debug("Got %s %s MGMTD Backend Client Server",
connected ? "connected" : "disconnected",
connected ? "to" : "from");
if (connected)
(void)mgmt_be_subscribe_yang_data(mgmt_lib_hndl, NULL, 0);
}
#if 0
static void
static_mgmt_txn_notify(uintptr_t lib_hndl, uintptr_t usr_data,
struct mgmt_be_client_txn_ctx *txn_ctx,
bool destroyed)
{
zlog_debug("Got Txn %s Notify from MGMTD server",
destroyed ? "DESTROY" : "CREATE");
if (!destroyed) {
/*
* TODO: Allocate and install a private scratchpad for this
* transaction if required
*/
} else {
/*
* TODO: Uninstall and deallocate the private scratchpad for
* this transaction if installed earlier.
*/
}
}
#endif
static struct mgmt_be_client_params mgmt_params = {
.name = "staticd",
.conn_retry_intvl_sec = 3,
.client_connect_notify = static_mgmt_be_client_connect,
.txn_notify = NULL, /* static_mgmt_txn_notify */
};
static const struct frr_yang_module_info *const staticd_yang_modules[] = {
&frr_filter_info,
&frr_interface_info,
&frr_vrf_info,
&frr_routing_info,
&frr_staticd_info,
};
#define STATIC_VTY_PORT 2616
/*
* NOTE: .flags == FRR_NO_SPLIT_CONFIG to avoid reading split config, mgmtd will
* do this for us now
*/
FRR_DAEMON_INFO(staticd, STATIC, .vty_port = STATIC_VTY_PORT,
.proghelp = "Implementation of STATIC.",
.signals = static_signals,
.n_signals = array_size(static_signals),
.privs = &static_privs, .yang_modules = staticd_yang_modules,
.n_yang_modules = array_size(staticd_yang_modules),
.flags = FRR_NO_SPLIT_CONFIG);
int main(int argc, char **argv, char **envp)
{
frr_preinit(&staticd_di, argc, argv);
frr_opt_add("", longopts, "");
while (1) {
int opt;
opt = frr_getopt(argc, argv, NULL);
if (opt == EOF)
break;
switch (opt) {
case 0:
break;
default:
frr_help_exit(1);
}
}
master = frr_init();
static_debug_init();
static_vrf_init();
static_zebra_init();
static_vty_init();
/* Initialize MGMT backend functionalities */
mgmt_lib_hndl = mgmt_be_client_lib_init(&mgmt_params, master);
assert(mgmt_lib_hndl);
hook_register(routing_conf_event,
routing_control_plane_protocols_name_validate);
routing_control_plane_protocols_register_vrf_dependency();
/*
* We set FRR_NO_SPLIT_CONFIG flag to avoid reading our config, but we
* still need to write one if vtysh tells us to. Setting the host
* config filename does this.
*/
host_config_set(config_default);
frr_config_fork();
frr_run(master);
/* Not reached. */
return 0;
}
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