[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 "lib/lib_errors.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 -1;
	if (e1->tableid > e2->tableid)
		return 1;
	if (e1->ns_id < e2->ns_id)
		return -1;
	if (e1->ns_id > e2->ns_id)
		return 1;
	return (e1->afi - e2->afi);
}

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");

	zns->iptable_hash =
		hash_create_size(8, zebra_pbr_iptable_hash_key,
				 zebra_pbr_iptable_hash_equal,
				 "IPtable 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;
	finder.ns_id = zns->ns_id;
	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) {
		if (znst->ns_id != NS_DEFAULT)
			continue;
		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) {
		if (znst->ns_id != NS_DEFAULT)
			continue;
		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;
	finder.ns_id = zns->ns_id;
	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->ns_id = zns->ns_id;
	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, *tmp;
	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_entry_hash,
		   zebra_pbr_ipset_entry_free),
	hash_clean(zns->ipset_hash, zebra_pbr_ipset_free);
	hash_free(zns->ipset_hash);
	hash_free(zns->ipset_entry_hash);
	hash_clean(zns->iptable_hash,
		   zebra_pbr_iptable_free);
	hash_free(zns->iptable_hash);

	RB_FOREACH_SAFE (znst, zebra_ns_table_head, &zns->ns_tables, tmp) {
		if (znst->ns_id != ns_id)
			continue;
		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();

	frr_elevate_privs(&zserv_privs) {
		ns_id = zebra_ns_id_get_default();
	}
	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"
fe18ee2d DS	28	#include "lib/memory.h"
174482ef	29	#include "lib/lib_errors.h"
fe18ee2d DS	30
	31	#include "rtadv.h"
	32	#include "zebra_ns.h"
7c551956	33	#include "zebra_vrf.h"
4a1ab8e4	34	#include "zebra_memory.h"
05f7f5db	35	#include "rt.h"
b7cfce93	36	#include "zebra_vxlan.h"
3347430b	37	#include "debug.h"
e27dec3c	38	#include "zebra_netns_notify.h"
ec31f30d	39	#include "zebra_netns_id.h"
43fe6a2a	40	#include "zebra_pbr.h"
47a08aa9	41	#include "rib.h"
8288a24f	42	#include "table_manager.h"
ec31f30d PG	43
ec31f30d PG	44	extern struct zebra_privs_t zserv_privs;
4a1ab8e4	45
d62a17ae	46	DEFINE_MTYPE(ZEBRA, ZEBRA_NS, "Zebra Name Space")
fe18ee2d	47
996c9314 LB	48	static inline int zebra_ns_table_entry_compare(const struct zebra_ns_table *e1,
996c9314 LB	49	const struct zebra_ns_table *e2);
5335613b DS	50
	51	RB_GENERATE(zebra_ns_table_head, zebra_ns_table, zebra_ns_table_entry,
	52	zebra_ns_table_entry_compare);
	53
337960dd	54	static struct zebra_ns *dzns;
fe18ee2d	55
996c9314 LB	56	static inline int zebra_ns_table_entry_compare(const struct zebra_ns_table *e1,
996c9314 LB	57	const struct zebra_ns_table *e2)
5335613b	58	{
b3441a6a PG	59	if (e1->tableid < e2->tableid)
	60	return -1;
	61	if (e1->tableid > e2->tableid)
	62	return 1;
	63	if (e1->ns_id < e2->ns_id)
	64	return -1;
	65	if (e1->ns_id > e2->ns_id)
	66	return 1;
	67	return (e1->afi - e2->afi);
5335613b DS	68	}
5335613b DS	69
736d41ad PG	70	static int logicalrouter_config_write(struct vty *vty);
736d41ad PG	71
d62a17ae	72	struct zebra_ns *zebra_ns_lookup(ns_id_t ns_id)
fe18ee2d	73	{
ff705b15 PG	74	if (ns_id == NS_DEFAULT)
	75	return dzns;
	76	struct zebra_ns info = (struct zebra_ns )ns_info_lookup(ns_id);
	77
	78	return (info == NULL) ? dzns : info;
fe18ee2d DS	79	}
fe18ee2d DS	80
3347430b PG	81	static struct zebra_ns *zebra_ns_alloc(void)
	82	{
	83	return XCALLOC(MTYPE_ZEBRA_NS, sizeof(struct zebra_ns));
	84	}
	85
	86	static int zebra_ns_new(struct ns *ns)
	87	{
	88	struct zebra_ns *zns;
	89
	90	if (IS_ZEBRA_DEBUG_EVENT)
	91	zlog_info("ZNS %s with id %u (created)", ns->name, ns->ns_id);
	92
	93	zns = zebra_ns_alloc();
	94	ns->info = zns;
	95	zns->ns = ns;
ff705b15 PG	96
	97	/* Do any needed per-NS data structure allocation. */
	98	zns->if_table = route_table_init();
	99	zebra_vxlan_ns_init(zns);
	100
3347430b PG	101	return 0;
	102	}
	103
	104	static int zebra_ns_delete(struct ns *ns)
	105	{
996c9314	106	struct zebra_ns zns = (struct zebra_ns )ns->info;
3347430b PG	107
	108	if (IS_ZEBRA_DEBUG_EVENT)
	109	zlog_info("ZNS %s with id %u (deleted)", ns->name, ns->ns_id);
	110	if (!zns)
	111	return 0;
	112	XFREE(MTYPE_ZEBRA_NS, zns);
	113	return 0;
	114	}
	115
	116	static int zebra_ns_enabled(struct ns *ns)
	117	{
	118	struct zebra_ns *zns = ns->info;
	119
	120	if (IS_ZEBRA_DEBUG_EVENT)
	121	zlog_info("ZNS %s with id %u (enabled)", ns->name, ns->ns_id);
	122	if (!zns)
	123	return 0;
	124	return zebra_ns_enable(ns->ns_id, (void **)&zns);
	125	}
	126
ff705b15	127	int zebra_ns_disabled(struct ns *ns)
3347430b PG	128	{
	129	struct zebra_ns *zns = ns->info;
	130
	131	if (IS_ZEBRA_DEBUG_EVENT)
	132	zlog_info("ZNS %s with id %u (disabled)", ns->name, ns->ns_id);
	133	if (!zns)
	134	return 0;
	135	return zebra_ns_disable(ns->ns_id, (void **)&zns);
	136	}
	137
84915b0a	138	/* Do global enable actions - open sockets, read kernel config etc. */
d62a17ae	139	int zebra_ns_enable(ns_id_t ns_id, void **info)
fe18ee2d	140	{
d62a17ae	141	struct zebra_ns zns = (struct zebra_ns )(*info);
fe18ee2d	142
ff705b15 PG	143	zns->ns_id = ns_id;
ff705b15 PG	144
5e280e56 PG	145	zns->rules_hash =
	146	hash_create_size(8, zebra_pbr_rules_hash_key,
	147	zebra_pbr_rules_hash_equal, "Rules Hash");
	148
7661461a PG	149	zns->ipset_hash =
	150	hash_create_size(8, zebra_pbr_ipset_hash_key,
	151	zebra_pbr_ipset_hash_equal, "IPset Hash");
	152
	153	zns->ipset_entry_hash =
	154	hash_create_size(8, zebra_pbr_ipset_entry_hash_key,
	155	zebra_pbr_ipset_entry_hash_equal,
	156	"IPset Hash Entry");
7abd6c4f PG	157
	158	zns->iptable_hash =
	159	hash_create_size(8, zebra_pbr_iptable_hash_key,
	160	zebra_pbr_iptable_hash_equal,
	161	"IPtable Hash Entry");
	162
d62a17ae	163	#if defined(HAVE_RTADV)
d62a17ae	164	rtadv_init(zns);
fe18ee2d DS	165	#endif
fe18ee2d DS	166
d62a17ae	167	kernel_init(zns);
	168	interface_list(zns);
	169	route_read(zns);
fe18ee2d	170
8288a24f PG	171	/* Initiate Table Manager per ZNS */
	172	table_manager_enable(ns_id);
	173
d62a17ae	174	return 0;
fe18ee2d DS	175	}
fe18ee2d DS	176
996c9314 LB	177	struct route_table zebra_ns_find_table(struct zebra_ns zns, uint32_t tableid,
996c9314 LB	178	afi_t afi)
ae825b8b	179	{
55cd0f61 DS	180	struct zebra_ns_table finder;
55cd0f61 DS	181	struct zebra_ns_table *znst;
ae825b8b DS	182
	183	memset(&finder, 0, sizeof(finder));
	184	finder.afi = afi;
	185	finder.tableid = tableid;
b3441a6a	186	finder.ns_id = zns->ns_id;
55cd0f61	187	znst = RB_FIND(zebra_ns_table_head, &zns->ns_tables, &finder);
ae825b8b DS	188
	189	if (znst)
	190	return znst->table;
	191	else
	192	return NULL;
	193	}
	194
d7c0a89a	195	unsigned long zebra_ns_score_proto(uint8_t proto, unsigned short instance)
47a08aa9 DS	196	{
	197	struct zebra_ns *zns;
	198	struct zebra_ns_table *znst;
	199	unsigned long cnt = 0;
	200
	201	zns = zebra_ns_lookup(NS_DEFAULT);
	202
b3441a6a PG	203	RB_FOREACH (znst, zebra_ns_table_head, &zns->ns_tables) {
	204	if (znst->ns_id != NS_DEFAULT)
	205	continue;
47a08aa9	206	cnt += rib_score_proto_table(proto, instance, znst->table);
b3441a6a	207	}
47a08aa9 DS	208	return cnt;
	209	}
	210
95a29032 DS	211	void zebra_ns_sweep_route(void)
	212	{
	213	struct zebra_ns_table *znst;
	214	struct zebra_ns *zns;
	215
	216	zns = zebra_ns_lookup(NS_DEFAULT);
	217
b3441a6a PG	218	RB_FOREACH (znst, zebra_ns_table_head, &zns->ns_tables) {
	219	if (znst->ns_id != NS_DEFAULT)
	220	continue;
95a29032	221	rib_sweep_table(znst->table);
b3441a6a	222	}
95a29032 DS	223	}
95a29032 DS	224
5335613b DS	225	struct route_table zebra_ns_get_table(struct zebra_ns zns,
	226	struct zebra_vrf *zvrf, uint32_t tableid,
	227	afi_t afi)
	228	{
	229	struct zebra_ns_table finder;
	230	struct zebra_ns_table *znst;
	231	rib_table_info_t *info;
	232
	233	memset(&finder, 0, sizeof(finder));
	234	finder.afi = afi;
	235	finder.tableid = tableid;
b3441a6a	236	finder.ns_id = zns->ns_id;
5335613b DS	237	znst = RB_FIND(zebra_ns_table_head, &zns->ns_tables, &finder);
	238
	239	if (znst)
	240	return znst->table;
	241
	242	znst = XCALLOC(MTYPE_ZEBRA_NS, sizeof(*znst));
	243	znst->tableid = tableid;
	244	znst->afi = afi;
b3441a6a	245	znst->ns_id = zns->ns_id;
5335613b DS	246	znst->table =
	247	(afi == AFI_IP6) ? srcdest_table_init() : route_table_init();
	248
	249	info = XCALLOC(MTYPE_RIB_TABLE_INFO, sizeof(*info));
	250	info->zvrf = zvrf;
	251	info->afi = afi;
	252	info->safi = SAFI_UNICAST;
	253	znst->table->info = info;
	254	znst->table->cleanup = zebra_rtable_node_cleanup;
	255
	256	RB_INSERT(zebra_ns_table_head, &zns->ns_tables, znst);
	257	return znst->table;
	258	}
	259
783fc3cd	260	static void zebra_ns_free_table(struct zebra_ns_table *znst)
5335613b DS	261	{
5335613b DS	262	void *table_info;
27b136bd	263
5335613b DS	264	rib_close_table(znst->table);
	265
	266	table_info = znst->table->info;
	267	route_table_finish(znst->table);
	268	XFREE(MTYPE_RIB_TABLE_INFO, table_info);
	269	XFREE(MTYPE_ZEBRA_NS, znst);
5335613b DS	270	}
5335613b DS	271
d62a17ae	272	int zebra_ns_disable(ns_id_t ns_id, void **info)
fe18ee2d	273	{
b3441a6a	274	struct zebra_ns_table znst, tmp;
d62a17ae	275	struct zebra_ns zns = (struct zebra_ns )(*info);
fe18ee2d	276
43fe6a2a DS	277	hash_clean(zns->rules_hash, zebra_pbr_rules_free);
43fe6a2a DS	278	hash_free(zns->rules_hash);
7661461a PG	279	hash_clean(zns->ipset_entry_hash,
7661461a PG	280	zebra_pbr_ipset_entry_free),
be2028d1 PG	281	hash_clean(zns->ipset_hash, zebra_pbr_ipset_free);
be2028d1 PG	282	hash_free(zns->ipset_hash);
7661461a	283	hash_free(zns->ipset_entry_hash);
7abd6c4f PG	284	hash_clean(zns->iptable_hash,
	285	zebra_pbr_iptable_free);
	286	hash_free(zns->iptable_hash);
7661461a	287
b3441a6a PG	288	RB_FOREACH_SAFE (znst, zebra_ns_table_head, &zns->ns_tables, tmp) {
	289	if (znst->ns_id != ns_id)
	290	continue;
5335613b	291	RB_REMOVE(zebra_ns_table_head, &zns->ns_tables, znst);
783fc3cd	292	zebra_ns_free_table(znst);
5335613b	293	}
43fe6a2a	294
d62a17ae	295	route_table_finish(zns->if_table);
b7cfce93	296	zebra_vxlan_ns_disable(zns);
d62a17ae	297	#if defined(HAVE_RTADV)
d62a17ae	298	rtadv_terminate(zns);
fe18ee2d DS	299	#endif
fe18ee2d DS	300
d62a17ae	301	kernel_terminate(zns);
fe18ee2d	302
8288a24f PG	303	table_manager_disable(zns->ns_id);
8288a24f PG	304
ff705b15 PG	305	zns->ns_id = NS_DEFAULT;
ff705b15 PG	306
d62a17ae	307	return 0;
fe18ee2d DS	308	}
fe18ee2d DS	309
5335613b	310
d62a17ae	311	int zebra_ns_init(void)
fe18ee2d	312	{
ec31f30d	313	ns_id_t ns_id;
03aff2d8	314	ns_id_t ns_id_external;
ec31f30d	315
3347430b PG	316	dzns = zebra_ns_alloc();
3347430b PG	317
01b9e3fd DL	318	frr_elevate_privs(&zserv_privs) {
	319	ns_id = zebra_ns_id_get_default();
	320	}
03aff2d8 PG	321	ns_id_external = ns_map_nsid_with_external(ns_id, true);
03aff2d8 PG	322	ns_init_management(ns_id_external, ns_id);
736d41ad PG	323
736d41ad PG	324	logicalrouter_init(logicalrouter_config_write);
13460c44	325
84915b0a	326	/* Do any needed per-NS data structure allocation. */
	327	dzns->if_table = route_table_init();
	328	zebra_vxlan_ns_init(dzns);
	329
	330	/* Register zebra VRF callbacks, create and activate default VRF. */
d62a17ae	331	zebra_vrf_init();
fe18ee2d	332
84915b0a	333	/* Default NS is activated */
03aff2d8	334	zebra_ns_enable(ns_id_external, (void **)&dzns);
fe18ee2d	335
3347430b PG	336	if (vrf_is_backend_netns()) {
	337	ns_add_hook(NS_NEW_HOOK, zebra_ns_new);
	338	ns_add_hook(NS_ENABLE_HOOK, zebra_ns_enabled);
	339	ns_add_hook(NS_DISABLE_HOOK, zebra_ns_disabled);
	340	ns_add_hook(NS_DELETE_HOOK, zebra_ns_delete);
e27dec3c PG	341	zebra_ns_notify_parse();
e27dec3c PG	342	zebra_ns_notify_init();
3347430b	343	}
d62a17ae	344	return 0;
fe18ee2d	345	}
b95c1883	346
736d41ad PG	347	static int logicalrouter_config_write(struct vty *vty)
	348	{
	349	struct ns *ns;
	350	int write = 0;
	351
996c9314	352	RB_FOREACH (ns, ns_head, &ns_tree) {
736d41ad PG	353	if (ns->ns_id == NS_DEFAULT \|\| ns->name == NULL)
	354	continue;
	355	vty_out(vty, "logical-router %u netns %s\n", ns->ns_id,
	356	ns->name);
	357	write = 1;
	358	}
	359	return write;
	360	}
	361
b95c1883 PG	362	int zebra_ns_config_write(struct vty vty, struct ns ns)
	363	{
	364	if (ns && ns->name != NULL)
	365	vty_out(vty, " netns %s\n", ns->name);
	366	return 0;
	367	}