[mirror_frr.git] / zebra / zebra_ns.c

/* zebra NS Routines
 * Copyright (C) 2016 Cumulus Networks, Inc.
 *                    Donald Sharp
 * Copyright (C) 2017/2018 6WIND
 *
 * This file is part of Quagga.
 *
 * Quagga 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, or (at your option) any
 * later version.
 *
 * Quagga 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/ns.h"
#include "lib/vrf.h"
#include "lib/logicalrouter.h"
#include "lib/prefix.h"
#include "lib/memory.h"

#include "rtadv.h"
#include "zebra_ns.h"
#include "zebra_vrf.h"
#include "zebra_memory.h"
#include "rt.h"
#include "zebra_vxlan.h"
#include "debug.h"
#include "zebra_netns_notify.h"
#include "zebra_netns_id.h"
#include "zebra_pbr.h"
#include "rib.h"
#include "table_manager.h"

extern struct zebra_privs_t zserv_privs;

DEFINE_MTYPE(ZEBRA, ZEBRA_NS, "Zebra Name Space")

static inline int zebra_ns_table_entry_compare(const struct zebra_ns_table *e1,
					       const struct zebra_ns_table *e2);

RB_GENERATE(zebra_ns_table_head, zebra_ns_table, zebra_ns_table_entry,
	    zebra_ns_table_entry_compare);

static struct zebra_ns *dzns;

static inline int zebra_ns_table_entry_compare(const struct zebra_ns_table *e1,
					       const struct zebra_ns_table *e2)
{
	if (e1->tableid == e2->tableid)
		return (e1->afi - e2->afi);

	return e1->tableid - e2->tableid;
}

static int logicalrouter_config_write(struct vty *vty);

struct zebra_ns *zebra_ns_lookup(ns_id_t ns_id)
{
	if (ns_id == NS_DEFAULT)
		return dzns;
	struct zebra_ns *info = (struct zebra_ns *)ns_info_lookup(ns_id);

	return (info == NULL) ? dzns : info;
}

static struct zebra_ns *zebra_ns_alloc(void)
{
	return XCALLOC(MTYPE_ZEBRA_NS, sizeof(struct zebra_ns));
}

static int zebra_ns_new(struct ns *ns)
{
	struct zebra_ns *zns;

	if (IS_ZEBRA_DEBUG_EVENT)
		zlog_info("ZNS %s with id %u (created)", ns->name, ns->ns_id);

	zns = zebra_ns_alloc();
	ns->info = zns;
	zns->ns = ns;

	/* Do any needed per-NS data structure allocation. */
	zns->if_table = route_table_init();
	zebra_vxlan_ns_init(zns);

	return 0;
}

static int zebra_ns_delete(struct ns *ns)
{
	struct zebra_ns *zns = (struct zebra_ns *)ns->info;

	if (IS_ZEBRA_DEBUG_EVENT)
		zlog_info("ZNS %s with id %u (deleted)", ns->name, ns->ns_id);
	if (!zns)
		return 0;
	XFREE(MTYPE_ZEBRA_NS, zns);
	return 0;
}

static int zebra_ns_enabled(struct ns *ns)
{
	struct zebra_ns *zns = ns->info;

	if (IS_ZEBRA_DEBUG_EVENT)
		zlog_info("ZNS %s with id %u (enabled)", ns->name, ns->ns_id);
	if (!zns)
		return 0;
	return zebra_ns_enable(ns->ns_id, (void **)&zns);
}

int zebra_ns_disabled(struct ns *ns)
{
	struct zebra_ns *zns = ns->info;

	if (IS_ZEBRA_DEBUG_EVENT)
		zlog_info("ZNS %s with id %u (disabled)", ns->name, ns->ns_id);
	if (!zns)
		return 0;
	return zebra_ns_disable(ns->ns_id, (void **)&zns);
}

/* Do global enable actions - open sockets, read kernel config etc. */
int zebra_ns_enable(ns_id_t ns_id, void **info)
{
	struct zebra_ns *zns = (struct zebra_ns *)(*info);

	zns->ns_id = ns_id;

	zns->rules_hash =
		hash_create_size(8, zebra_pbr_rules_hash_key,
				 zebra_pbr_rules_hash_equal, "Rules Hash");

	zns->ipset_hash =
		hash_create_size(8, zebra_pbr_ipset_hash_key,
				 zebra_pbr_ipset_hash_equal, "IPset Hash");

	zns->ipset_entry_hash =
		hash_create_size(8, zebra_pbr_ipset_entry_hash_key,
				 zebra_pbr_ipset_entry_hash_equal,
				 "IPset Hash Entry");
#if defined(HAVE_RTADV)
	rtadv_init(zns);
#endif

	kernel_init(zns);
	interface_list(zns);
	route_read(zns);

	/* Initiate Table Manager per ZNS */
	table_manager_enable(ns_id);

	return 0;
}

struct route_table *zebra_ns_find_table(struct zebra_ns *zns, uint32_t tableid,
					afi_t afi)
{
	struct zebra_ns_table finder;
	struct zebra_ns_table *znst;

	memset(&finder, 0, sizeof(finder));
	finder.afi = afi;
	finder.tableid = tableid;
	znst = RB_FIND(zebra_ns_table_head, &zns->ns_tables, &finder);

	if (znst)
		return znst->table;
	else
		return NULL;
}

unsigned long zebra_ns_score_proto(uint8_t proto, unsigned short instance)
{
	struct zebra_ns *zns;
	struct zebra_ns_table *znst;
	unsigned long cnt = 0;

	zns = zebra_ns_lookup(NS_DEFAULT);

	RB_FOREACH (znst, zebra_ns_table_head, &zns->ns_tables)
		cnt += rib_score_proto_table(proto, instance, znst->table);

	return cnt;
}

void zebra_ns_sweep_route(void)
{
	struct zebra_ns_table *znst;
	struct zebra_ns *zns;

	zns = zebra_ns_lookup(NS_DEFAULT);

	RB_FOREACH (znst, zebra_ns_table_head, &zns->ns_tables)
		rib_sweep_table(znst->table);
}

struct route_table *zebra_ns_get_table(struct zebra_ns *zns,
				       struct zebra_vrf *zvrf, uint32_t tableid,
				       afi_t afi)
{
	struct zebra_ns_table finder;
	struct zebra_ns_table *znst;
	rib_table_info_t *info;

	memset(&finder, 0, sizeof(finder));
	finder.afi = afi;
	finder.tableid = tableid;
	znst = RB_FIND(zebra_ns_table_head, &zns->ns_tables, &finder);

	if (znst)
		return znst->table;

	znst = XCALLOC(MTYPE_ZEBRA_NS, sizeof(*znst));
	znst->tableid = tableid;
	znst->afi = afi;
	znst->table =
		(afi == AFI_IP6) ? srcdest_table_init() : route_table_init();

	info = XCALLOC(MTYPE_RIB_TABLE_INFO, sizeof(*info));
	info->zvrf = zvrf;
	info->afi = afi;
	info->safi = SAFI_UNICAST;
	znst->table->info = info;
	znst->table->cleanup = zebra_rtable_node_cleanup;

	RB_INSERT(zebra_ns_table_head, &zns->ns_tables, znst);
	return znst->table;
}

static void zebra_ns_free_table(struct zebra_ns_table *znst)
{
	void *table_info;

	rib_close_table(znst->table);

	table_info = znst->table->info;
	route_table_finish(znst->table);
	XFREE(MTYPE_RIB_TABLE_INFO, table_info);
	XFREE(MTYPE_ZEBRA_NS, znst);
}

int zebra_ns_disable(ns_id_t ns_id, void **info)
{
	struct zebra_ns_table *znst;
	struct zebra_ns *zns = (struct zebra_ns *)(*info);

	hash_clean(zns->rules_hash, zebra_pbr_rules_free);
	hash_free(zns->rules_hash);
	hash_clean(zns->ipset_hash, zebra_pbr_ipset_free);
	hash_free(zns->ipset_hash);
	hash_clean(zns->ipset_entry_hash,
		   zebra_pbr_ipset_entry_free),
	hash_free(zns->ipset_entry_hash);

	while (!RB_EMPTY(zebra_ns_table_head, &zns->ns_tables)) {
		znst = RB_ROOT(zebra_ns_table_head, &zns->ns_tables);

		RB_REMOVE(zebra_ns_table_head, &zns->ns_tables, znst);
		zebra_ns_free_table(znst);
	}

	route_table_finish(zns->if_table);
	zebra_vxlan_ns_disable(zns);
#if defined(HAVE_RTADV)
	rtadv_terminate(zns);
#endif

	kernel_terminate(zns);

	table_manager_disable(zns->ns_id);

	zns->ns_id = NS_DEFAULT;

	return 0;
}


int zebra_ns_init(void)
{
	ns_id_t ns_id;
	ns_id_t ns_id_external;

	dzns = zebra_ns_alloc();

	if (zserv_privs.change(ZPRIVS_RAISE))
		zlog_err("Can't raise privileges");
	ns_id = zebra_ns_id_get_default();
	if (zserv_privs.change(ZPRIVS_LOWER))
		zlog_err("Can't lower privileges");
	ns_id_external = ns_map_nsid_with_external(ns_id, true);
	ns_init_management(ns_id_external, ns_id);

	logicalrouter_init(logicalrouter_config_write);

	/* Do any needed per-NS data structure allocation. */
	dzns->if_table = route_table_init();
	zebra_vxlan_ns_init(dzns);

	/* Register zebra VRF callbacks, create and activate default VRF. */
	zebra_vrf_init();

	/* Default NS is activated */
	zebra_ns_enable(ns_id_external, (void **)&dzns);

	if (vrf_is_backend_netns()) {
		ns_add_hook(NS_NEW_HOOK, zebra_ns_new);
		ns_add_hook(NS_ENABLE_HOOK, zebra_ns_enabled);
		ns_add_hook(NS_DISABLE_HOOK, zebra_ns_disabled);
		ns_add_hook(NS_DELETE_HOOK, zebra_ns_delete);
		zebra_ns_notify_parse();
		zebra_ns_notify_init();
	}
	return 0;
}

static int logicalrouter_config_write(struct vty *vty)
{
	struct ns *ns;
	int write = 0;

	RB_FOREACH (ns, ns_head, &ns_tree) {
		if (ns->ns_id == NS_DEFAULT || ns->name == NULL)
			continue;
		vty_out(vty, "logical-router %u netns %s\n", ns->ns_id,
			ns->name);
		write = 1;
	}
	return write;
}

int zebra_ns_config_write(struct vty *vty, struct ns *ns)
{
	if (ns && ns->name != NULL)
		vty_out(vty, " netns %s\n", ns->name);
	return 0;
}
Commit	Line	Data
fe18ee2d DS	1	/* zebra NS Routines
	2	* Copyright (C) 2016 Cumulus Networks, Inc.
	3	* Donald Sharp
b95c1883	4	* Copyright (C) 2017/2018 6WIND
fe18ee2d DS	5	*
	6	* This file is part of Quagga.
	7	*
	8	* Quagga is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2, or (at your option) any
	11	* later version.
	12	*
	13	* Quagga is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
896014f4 DL	18	* You should have received a copy of the GNU General Public License along
	19	* with this program; see the file COPYING; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
fe18ee2d DS	21	*/
	22	#include "zebra.h"
	23
13460c44	24	#include "lib/ns.h"
fe18ee2d	25	#include "lib/vrf.h"
736d41ad	26	#include "lib/logicalrouter.h"
fe18ee2d DS	27	#include "lib/prefix.h"
	28	#include "lib/memory.h"
	29
	30	#include "rtadv.h"
	31	#include "zebra_ns.h"
7c551956	32	#include "zebra_vrf.h"
4a1ab8e4	33	#include "zebra_memory.h"
05f7f5db	34	#include "rt.h"
b7cfce93	35	#include "zebra_vxlan.h"
3347430b	36	#include "debug.h"
e27dec3c	37	#include "zebra_netns_notify.h"
ec31f30d	38	#include "zebra_netns_id.h"
43fe6a2a	39	#include "zebra_pbr.h"
47a08aa9	40	#include "rib.h"
8288a24f	41	#include "table_manager.h"
ec31f30d PG	42
ec31f30d PG	43	extern struct zebra_privs_t zserv_privs;
4a1ab8e4	44
d62a17ae	45	DEFINE_MTYPE(ZEBRA, ZEBRA_NS, "Zebra Name Space")
fe18ee2d	46
996c9314 LB	47	static inline int zebra_ns_table_entry_compare(const struct zebra_ns_table *e1,
996c9314 LB	48	const struct zebra_ns_table *e2);
5335613b DS	49
	50	RB_GENERATE(zebra_ns_table_head, zebra_ns_table, zebra_ns_table_entry,
	51	zebra_ns_table_entry_compare);
	52
337960dd	53	static struct zebra_ns *dzns;
fe18ee2d	54
996c9314 LB	55	static inline int zebra_ns_table_entry_compare(const struct zebra_ns_table *e1,
996c9314 LB	56	const struct zebra_ns_table *e2)
5335613b DS	57	{
	58	if (e1->tableid == e2->tableid)
	59	return (e1->afi - e2->afi);
	60
	61	return e1->tableid - e2->tableid;
	62	}
	63
736d41ad PG	64	static int logicalrouter_config_write(struct vty *vty);
736d41ad PG	65
d62a17ae	66	struct zebra_ns *zebra_ns_lookup(ns_id_t ns_id)
fe18ee2d	67	{
ff705b15 PG	68	if (ns_id == NS_DEFAULT)
	69	return dzns;
	70	struct zebra_ns info = (struct zebra_ns )ns_info_lookup(ns_id);
	71
	72	return (info == NULL) ? dzns : info;
fe18ee2d DS	73	}
fe18ee2d DS	74
3347430b PG	75	static struct zebra_ns *zebra_ns_alloc(void)
	76	{
	77	return XCALLOC(MTYPE_ZEBRA_NS, sizeof(struct zebra_ns));
	78	}
	79
	80	static int zebra_ns_new(struct ns *ns)
	81	{
	82	struct zebra_ns *zns;
	83
	84	if (IS_ZEBRA_DEBUG_EVENT)
	85	zlog_info("ZNS %s with id %u (created)", ns->name, ns->ns_id);
	86
	87	zns = zebra_ns_alloc();
	88	ns->info = zns;
	89	zns->ns = ns;
ff705b15 PG	90
	91	/* Do any needed per-NS data structure allocation. */
	92	zns->if_table = route_table_init();
	93	zebra_vxlan_ns_init(zns);
	94
3347430b PG	95	return 0;
	96	}
	97
	98	static int zebra_ns_delete(struct ns *ns)
	99	{
996c9314	100	struct zebra_ns zns = (struct zebra_ns )ns->info;
3347430b PG	101
	102	if (IS_ZEBRA_DEBUG_EVENT)
	103	zlog_info("ZNS %s with id %u (deleted)", ns->name, ns->ns_id);
	104	if (!zns)
	105	return 0;
	106	XFREE(MTYPE_ZEBRA_NS, zns);
	107	return 0;
	108	}
	109
	110	static int zebra_ns_enabled(struct ns *ns)
	111	{
	112	struct zebra_ns *zns = ns->info;
	113
	114	if (IS_ZEBRA_DEBUG_EVENT)
	115	zlog_info("ZNS %s with id %u (enabled)", ns->name, ns->ns_id);
	116	if (!zns)
	117	return 0;
	118	return zebra_ns_enable(ns->ns_id, (void **)&zns);
	119	}
	120
ff705b15	121	int zebra_ns_disabled(struct ns *ns)
3347430b PG	122	{
	123	struct zebra_ns *zns = ns->info;
	124
	125	if (IS_ZEBRA_DEBUG_EVENT)
	126	zlog_info("ZNS %s with id %u (disabled)", ns->name, ns->ns_id);
	127	if (!zns)
	128	return 0;
	129	return zebra_ns_disable(ns->ns_id, (void **)&zns);
	130	}
	131
84915b0a	132	/* Do global enable actions - open sockets, read kernel config etc. */
d62a17ae	133	int zebra_ns_enable(ns_id_t ns_id, void **info)
fe18ee2d	134	{
d62a17ae	135	struct zebra_ns zns = (struct zebra_ns )(*info);
fe18ee2d	136
ff705b15 PG	137	zns->ns_id = ns_id;
ff705b15 PG	138
5e280e56 PG	139	zns->rules_hash =
	140	hash_create_size(8, zebra_pbr_rules_hash_key,
	141	zebra_pbr_rules_hash_equal, "Rules Hash");
	142
7661461a PG	143	zns->ipset_hash =
	144	hash_create_size(8, zebra_pbr_ipset_hash_key,
	145	zebra_pbr_ipset_hash_equal, "IPset Hash");
	146
	147	zns->ipset_entry_hash =
	148	hash_create_size(8, zebra_pbr_ipset_entry_hash_key,
	149	zebra_pbr_ipset_entry_hash_equal,
	150	"IPset Hash Entry");
d62a17ae	151	#if defined(HAVE_RTADV)
d62a17ae	152	rtadv_init(zns);
fe18ee2d DS	153	#endif
fe18ee2d DS	154
d62a17ae	155	kernel_init(zns);
	156	interface_list(zns);
	157	route_read(zns);
fe18ee2d	158
8288a24f PG	159	/* Initiate Table Manager per ZNS */
	160	table_manager_enable(ns_id);
	161
d62a17ae	162	return 0;
fe18ee2d DS	163	}
fe18ee2d DS	164
996c9314 LB	165	struct route_table zebra_ns_find_table(struct zebra_ns zns, uint32_t tableid,
996c9314 LB	166	afi_t afi)
ae825b8b	167	{
55cd0f61 DS	168	struct zebra_ns_table finder;
55cd0f61 DS	169	struct zebra_ns_table *znst;
ae825b8b DS	170
	171	memset(&finder, 0, sizeof(finder));
	172	finder.afi = afi;
	173	finder.tableid = tableid;
55cd0f61	174	znst = RB_FIND(zebra_ns_table_head, &zns->ns_tables, &finder);
ae825b8b DS	175
	176	if (znst)
	177	return znst->table;
	178	else
	179	return NULL;
	180	}
	181
d7c0a89a	182	unsigned long zebra_ns_score_proto(uint8_t proto, unsigned short instance)
47a08aa9 DS	183	{
	184	struct zebra_ns *zns;
	185	struct zebra_ns_table *znst;
	186	unsigned long cnt = 0;
	187
	188	zns = zebra_ns_lookup(NS_DEFAULT);
	189
	190	RB_FOREACH (znst, zebra_ns_table_head, &zns->ns_tables)
	191	cnt += rib_score_proto_table(proto, instance, znst->table);
	192
	193	return cnt;
	194	}
	195
95a29032 DS	196	void zebra_ns_sweep_route(void)
	197	{
	198	struct zebra_ns_table *znst;
	199	struct zebra_ns *zns;
	200
	201	zns = zebra_ns_lookup(NS_DEFAULT);
	202
	203	RB_FOREACH (znst, zebra_ns_table_head, &zns->ns_tables)
	204	rib_sweep_table(znst->table);
	205	}
	206
5335613b DS	207	struct route_table zebra_ns_get_table(struct zebra_ns zns,
	208	struct zebra_vrf *zvrf, uint32_t tableid,
	209	afi_t afi)
	210	{
	211	struct zebra_ns_table finder;
	212	struct zebra_ns_table *znst;
	213	rib_table_info_t *info;
	214
	215	memset(&finder, 0, sizeof(finder));
	216	finder.afi = afi;
	217	finder.tableid = tableid;
	218	znst = RB_FIND(zebra_ns_table_head, &zns->ns_tables, &finder);
	219
	220	if (znst)
	221	return znst->table;
	222
	223	znst = XCALLOC(MTYPE_ZEBRA_NS, sizeof(*znst));
	224	znst->tableid = tableid;
	225	znst->afi = afi;
	226	znst->table =
	227	(afi == AFI_IP6) ? srcdest_table_init() : route_table_init();
	228
	229	info = XCALLOC(MTYPE_RIB_TABLE_INFO, sizeof(*info));
	230	info->zvrf = zvrf;
	231	info->afi = afi;
	232	info->safi = SAFI_UNICAST;
	233	znst->table->info = info;
	234	znst->table->cleanup = zebra_rtable_node_cleanup;
	235
	236	RB_INSERT(zebra_ns_table_head, &zns->ns_tables, znst);
	237	return znst->table;
	238	}
	239
783fc3cd	240	static void zebra_ns_free_table(struct zebra_ns_table *znst)
5335613b DS	241	{
5335613b DS	242	void *table_info;
27b136bd	243
5335613b DS	244	rib_close_table(znst->table);
	245
	246	table_info = znst->table->info;
	247	route_table_finish(znst->table);
	248	XFREE(MTYPE_RIB_TABLE_INFO, table_info);
	249	XFREE(MTYPE_ZEBRA_NS, znst);
5335613b DS	250	}
5335613b DS	251
d62a17ae	252	int zebra_ns_disable(ns_id_t ns_id, void **info)
fe18ee2d	253	{
5335613b	254	struct zebra_ns_table *znst;
d62a17ae	255	struct zebra_ns zns = (struct zebra_ns )(*info);
fe18ee2d	256
43fe6a2a DS	257	hash_clean(zns->rules_hash, zebra_pbr_rules_free);
43fe6a2a DS	258	hash_free(zns->rules_hash);
7661461a PG	259	hash_clean(zns->ipset_hash, zebra_pbr_ipset_free);
	260	hash_free(zns->ipset_hash);
	261	hash_clean(zns->ipset_entry_hash,
	262	zebra_pbr_ipset_entry_free),
	263	hash_free(zns->ipset_entry_hash);
	264
55cd0f61 DS	265	while (!RB_EMPTY(zebra_ns_table_head, &zns->ns_tables)) {
	266	znst = RB_ROOT(zebra_ns_table_head, &zns->ns_tables);
	267
5335613b	268	RB_REMOVE(zebra_ns_table_head, &zns->ns_tables, znst);
783fc3cd	269	zebra_ns_free_table(znst);
5335613b	270	}
43fe6a2a	271
d62a17ae	272	route_table_finish(zns->if_table);
b7cfce93	273	zebra_vxlan_ns_disable(zns);
d62a17ae	274	#if defined(HAVE_RTADV)
d62a17ae	275	rtadv_terminate(zns);
fe18ee2d DS	276	#endif
fe18ee2d DS	277
d62a17ae	278	kernel_terminate(zns);
fe18ee2d	279
8288a24f PG	280	table_manager_disable(zns->ns_id);
8288a24f PG	281
ff705b15 PG	282	zns->ns_id = NS_DEFAULT;
ff705b15 PG	283
d62a17ae	284	return 0;
fe18ee2d DS	285	}
fe18ee2d DS	286
5335613b	287
d62a17ae	288	int zebra_ns_init(void)
fe18ee2d	289	{
ec31f30d	290	ns_id_t ns_id;
03aff2d8	291	ns_id_t ns_id_external;
ec31f30d	292
3347430b PG	293	dzns = zebra_ns_alloc();
3347430b PG	294
ec31f30d PG	295	if (zserv_privs.change(ZPRIVS_RAISE))
	296	zlog_err("Can't raise privileges");
	297	ns_id = zebra_ns_id_get_default();
	298	if (zserv_privs.change(ZPRIVS_LOWER))
	299	zlog_err("Can't lower privileges");
03aff2d8 PG	300	ns_id_external = ns_map_nsid_with_external(ns_id, true);
03aff2d8 PG	301	ns_init_management(ns_id_external, ns_id);
736d41ad PG	302
736d41ad PG	303	logicalrouter_init(logicalrouter_config_write);
13460c44	304
84915b0a	305	/* Do any needed per-NS data structure allocation. */
	306	dzns->if_table = route_table_init();
	307	zebra_vxlan_ns_init(dzns);
	308
	309	/* Register zebra VRF callbacks, create and activate default VRF. */
d62a17ae	310	zebra_vrf_init();
fe18ee2d	311
84915b0a	312	/* Default NS is activated */
03aff2d8	313	zebra_ns_enable(ns_id_external, (void **)&dzns);
fe18ee2d	314
3347430b PG	315	if (vrf_is_backend_netns()) {
	316	ns_add_hook(NS_NEW_HOOK, zebra_ns_new);
	317	ns_add_hook(NS_ENABLE_HOOK, zebra_ns_enabled);
	318	ns_add_hook(NS_DISABLE_HOOK, zebra_ns_disabled);
	319	ns_add_hook(NS_DELETE_HOOK, zebra_ns_delete);
e27dec3c PG	320	zebra_ns_notify_parse();
e27dec3c PG	321	zebra_ns_notify_init();
3347430b	322	}
d62a17ae	323	return 0;
fe18ee2d	324	}
b95c1883	325
736d41ad PG	326	static int logicalrouter_config_write(struct vty *vty)
	327	{
	328	struct ns *ns;
	329	int write = 0;
	330
996c9314	331	RB_FOREACH (ns, ns_head, &ns_tree) {
736d41ad PG	332	if (ns->ns_id == NS_DEFAULT \|\| ns->name == NULL)
	333	continue;
	334	vty_out(vty, "logical-router %u netns %s\n", ns->ns_id,
	335	ns->name);
	336	write = 1;
	337	}
	338	return write;
	339	}
	340
b95c1883 PG	341	int zebra_ns_config_write(struct vty vty, struct ns ns)
	342	{
	343	if (ns && ns->name != NULL)
	344	vty_out(vty, " netns %s\n", ns->name);
	345	return 0;
	346	}