1 files changed, 255 insertions, 0 deletions
diff --git a/ospfd/ospf_main.c b/ospfd/ospf_main.c
new file mode 100644
index 0000000..dd00024
--- /dev/null
+++ b/ospfd/ospf_main.c
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * OSPFd main routine.
+ *   Copyright (C) 1998, 99 Kunihiro Ishiguro, Toshiaki Takada
+ */
+
+#include <zebra.h>
+
+#include <lib/version.h>
+#include "bfd.h"
+#include "getopt.h"
+#include "frrevent.h"
+#include "prefix.h"
+#include "linklist.h"
+#include "if.h"
+#include "vector.h"
+#include "vty.h"
+#include "command.h"
+#include "filter.h"
+#include "plist.h"
+#include "stream.h"
+#include "log.h"
+#include "memory.h"
+#include "privs.h"
+#include "sigevent.h"
+#include "zclient.h"
+#include "vrf.h"
+#include "libfrr.h"
+#include "routemap.h"
+#include "keychain.h"
+
+#include "ospfd/ospfd.h"
+#include "ospfd/ospf_interface.h"
+#include "ospfd/ospf_asbr.h"
+#include "ospfd/ospf_lsa.h"
+#include "ospfd/ospf_lsdb.h"
+#include "ospfd/ospf_neighbor.h"
+#include "ospfd/ospf_dump.h"
+#include "ospfd/ospf_route.h"
+#include "ospfd/ospf_zebra.h"
+#include "ospfd/ospf_vty.h"
+#include "ospfd/ospf_bfd.h"
+#include "ospfd/ospf_gr.h"
+#include "ospfd/ospf_errors.h"
+#include "ospfd/ospf_ldp_sync.h"
+#include "ospfd/ospf_routemap_nb.h"
+
+/* ospfd privileges */
+zebra_capabilities_t _caps_p[] = {ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN,
+				  ZCAP_SYS_ADMIN};
+
+struct zebra_privs_t ospfd_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};
+
+/* OSPFd options. */
+const struct option longopts[] = {
+	{"instance", required_argument, NULL, 'n'},
+	{"apiserver", no_argument, NULL, 'a'},
+	{0}
+};
+
+/* OSPFd program name */
+
+/* Master of threads. */
+struct event_loop *master;
+
+#ifdef SUPPORT_OSPF_API
+extern int ospf_apiserver_enable;
+#endif /* SUPPORT_OSPF_API */
+
+/* SIGHUP handler. */
+static void sighup(void)
+{
+	zlog_info("SIGHUP received");
+}
+
+/* SIGINT / SIGTERM handler. */
+static void sigint(void)
+{
+	zlog_notice("Terminating on signal");
+	bfd_protocol_integration_set_shutdown(true);
+	ospf_terminate();
+	exit(0);
+}
+
+/* SIGUSR1 handler. */
+static void sigusr1(void)
+{
+	zlog_rotate();
+}
+
+struct frr_signal_t ospf_signals[] = {
+	{
+		.signal = SIGHUP,
+		.handler = &sighup,
+	},
+	{
+		.signal = SIGUSR1,
+		.handler = &sigusr1,
+	},
+	{
+		.signal = SIGINT,
+		.handler = &sigint,
+	},
+	{
+		.signal = SIGTERM,
+		.handler = &sigint,
+	},
+};
+
+static const struct frr_yang_module_info *const ospfd_yang_modules[] = {
+	&frr_filter_info,
+	&frr_interface_info,
+	&frr_route_map_info,
+	&frr_vrf_info,
+	&frr_ospf_route_map_info,
+};
+
+FRR_DAEMON_INFO(ospfd, OSPF, .vty_port = OSPF_VTY_PORT,
+
+		.proghelp = "Implementation of the OSPFv2 routing protocol.",
+
+		.signals = ospf_signals, .n_signals = array_size(ospf_signals),
+
+		.privs = &ospfd_privs, .yang_modules = ospfd_yang_modules,
+		.n_yang_modules = array_size(ospfd_yang_modules),
+);
+
+/** Max wait time for config to load before accepting hellos */
+#define OSPF_PRE_CONFIG_MAX_WAIT_SECONDS 600
+
+static void ospf_config_finish(struct event *t)
+{
+	zlog_err("OSPF configuration end timer expired after %d seconds.",
+		 OSPF_PRE_CONFIG_MAX_WAIT_SECONDS);
+}
+
+static void ospf_config_start(void)
+{
+	EVENT_OFF(t_ospf_cfg);
+	if (IS_DEBUG_OSPF_EVENT)
+		zlog_debug("ospfd config start callback received.");
+	event_add_timer(master, ospf_config_finish, NULL,
+			OSPF_PRE_CONFIG_MAX_WAIT_SECONDS, &t_ospf_cfg);
+}
+
+static void ospf_config_end(void)
+{
+	if (IS_DEBUG_OSPF_EVENT)
+		zlog_debug("ospfd config end callback received.");
+
+	EVENT_OFF(t_ospf_cfg);
+}
+
+/* OSPFd main routine. */
+int main(int argc, char **argv)
+{
+#ifdef SUPPORT_OSPF_API
+	/* OSPF apiserver is disabled by default. */
+	ospf_apiserver_enable = 0;
+#endif /* SUPPORT_OSPF_API */
+
+	frr_preinit(&ospfd_di, argc, argv);
+	frr_opt_add("n:a", longopts,
+		    "  -n, --instance     Set the instance id\n"
+		    "  -a, --apiserver    Enable OSPF apiserver\n");
+
+	while (1) {
+		int opt;
+
+		opt = frr_getopt(argc, argv, NULL);
+
+		if (opt == EOF)
+			break;
+
+		switch (opt) {
+		case 'n':
+			ospfd_di.instance = ospf_instance = atoi(optarg);
+			if (ospf_instance < 1)
+				exit(0);
+			break;
+		case 0:
+			break;
+#ifdef SUPPORT_OSPF_API
+		case 'a':
+			ospf_apiserver_enable = 1;
+			break;
+#endif /* SUPPORT_OSPF_API */
+		default:
+			frr_help_exit(1);
+		}
+	}
+
+	/* Invoked by a priviledged user? -- endo. */
+	if (geteuid() != 0) {
+		errno = EPERM;
+		perror(ospfd_di.progname);
+		exit(1);
+	}
+
+	/* OSPF master init. */
+	ospf_master_init(frr_init());
+
+	/* Initializations. */
+	master = om->master;
+
+	/* Library inits. */
+	ospf_debug_init();
+	ospf_vrf_init();
+
+	access_list_init();
+	prefix_list_init();
+	keychain_init();
+
+	/* Configuration processing callback initialization. */
+	cmd_init_config_callbacks(ospf_config_start, ospf_config_end);
+
+	/* OSPFd inits. */
+	ospf_if_init();
+	ospf_zebra_init(master, ospf_instance);
+
+	/* OSPF vty inits. */
+	ospf_vty_init();
+	ospf_vty_show_init();
+	ospf_vty_clear_init();
+
+	/* OSPF BFD init */
+	ospf_bfd_init(master);
+
+	/* OSPF LDP IGP Sync init */
+	ospf_ldp_sync_init();
+
+	ospf_route_map_init();
+	ospf_opaque_init();
+	ospf_gr_init();
+	ospf_gr_helper_init();
+
+	/* OSPF errors init */
+	ospf_error_init();
+
+	frr_config_fork();
+	frr_run(master);
+
+	/* Not reached. */
+	return 0;
+}