[mirror_frr.git] / zebra / table_manager.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* zebra table Manager for routing table identifier management
 * Copyright (C) 2018 6WIND
 */

#include "zebra.h"

#include <stdio.h>
#include <string.h>
#include <sys/types.h>

#include "lib/log.h"
#include "lib/memory.h"
#include "lib/table.h"
#include "lib/network.h"
#include "lib/stream.h"
#include "lib/zclient.h"
#include "lib/libfrr.h"
#include "lib/vrf.h"

#include "zebra/zserv.h"
#include "zebra/zebra_vrf.h"
#include "zebra/label_manager.h" /* for NO_PROTO */
#include "zebra/table_manager.h"
#include "zebra/zebra_errors.h"

/* routing table identifiers
 *
 */
#if !defined(GNU_LINUX)
/* BSD systems
 */
#else
/* Linux Systems
 */
#define RT_TABLE_ID_LOCAL                  255
#define RT_TABLE_ID_MAIN                   254
#define RT_TABLE_ID_DEFAULT                253
#define RT_TABLE_ID_COMPAT                 252
#define RT_TABLE_ID_UNSPEC                 0
#endif /* !def(GNU_LINUX) */
#define RT_TABLE_ID_UNRESERVED_MIN         1
#define RT_TABLE_ID_UNRESERVED_MAX         0xffffffff

DEFINE_MGROUP(TABLE_MGR, "Table Manager");
DEFINE_MTYPE_STATIC(TABLE_MGR, TM_CHUNK, "Table Manager Chunk");
DEFINE_MTYPE_STATIC(TABLE_MGR, TM_TABLE, "Table Manager Context");

static void delete_table_chunk(void *val)
{
	XFREE(MTYPE_TM_CHUNK, val);
}

/**
 * Init table manager
 */
void table_manager_enable(struct zebra_vrf *zvrf)
{

	if (zvrf->tbl_mgr)
		return;
	if (!vrf_is_backend_netns()
	    && strcmp(zvrf_name(zvrf), VRF_DEFAULT_NAME)) {
		struct zebra_vrf *def = zebra_vrf_lookup_by_id(VRF_DEFAULT);

		if (def)
			zvrf->tbl_mgr = def->tbl_mgr;
		return;
	}
	zvrf->tbl_mgr = XCALLOC(MTYPE_TM_TABLE, sizeof(struct table_manager));
	zvrf->tbl_mgr->lc_list = list_new();
	zvrf->tbl_mgr->lc_list->del = delete_table_chunk;
}

/**
 * Core function, assigns table chunks
 *
 * It first searches through the list to check if there's one available
 * (previously released). Otherwise it creates and assigns a new one
 *
 * @param proto Daemon protocol of client, to identify the owner
 * @param instance Instance, to identify the owner
 * @para size Size of the table chunk
 * @return Pointer to the assigned table chunk
 */
struct table_manager_chunk *assign_table_chunk(uint8_t proto, uint16_t instance,
					       uint32_t size,
					       struct zebra_vrf *zvrf)
{
	struct table_manager_chunk *tmc;
	struct listnode *node;
	uint32_t start;
	bool manual_conf = false;

	if (!zvrf)
		return NULL;

	/* first check if there's one available */
	for (ALL_LIST_ELEMENTS_RO(zvrf->tbl_mgr->lc_list, node, tmc)) {
		if (tmc->proto == NO_PROTO
		    && tmc->end - tmc->start + 1 == size) {
			tmc->proto = proto;
			tmc->instance = instance;
			return tmc;
		}
	}
	/* otherwise create a new one */
	tmc = XCALLOC(MTYPE_TM_CHUNK, sizeof(struct table_manager_chunk));

	if (zvrf->tbl_mgr->start || zvrf->tbl_mgr->end)
		manual_conf = true;
	/* table RT IDs range are [1;252] and [256;0xffffffff]
	 * - check if the requested range can be within the first range,
	 * otherwise elect second one
	 * - TODO : vrf-lites have their own table identifier.
	 * In that case, table_id should be removed from the table range.
	 */
	if (list_isempty(zvrf->tbl_mgr->lc_list)) {
		if (!manual_conf)
			start = RT_TABLE_ID_UNRESERVED_MIN;
		else
			start = zvrf->tbl_mgr->start;
	} else
		start = ((struct table_manager_chunk *)listgetdata(
				 listtail(zvrf->tbl_mgr->lc_list)))
				->end
			+ 1;

	if (!manual_conf) {

#if !defined(GNU_LINUX)
/* BSD systems
 */
#else
/* Linux Systems
 */
		/* if not enough room space between MIN and COMPAT,
		 * then begin after LOCAL
		 */
		if (start < RT_TABLE_ID_COMPAT
		    && (size > RT_TABLE_ID_COMPAT - RT_TABLE_ID_UNRESERVED_MIN))
			start = RT_TABLE_ID_LOCAL + 1;
#endif /* !def(GNU_LINUX) */
		tmc->start = start;
		if (RT_TABLE_ID_UNRESERVED_MAX - size + 1 < start) {
			flog_err(EC_ZEBRA_TM_EXHAUSTED_IDS,
				 "Reached max table id. Start/Size %u/%u",
				 start, size);
			XFREE(MTYPE_TM_CHUNK, tmc);
			return NULL;
		}
	} else {
		tmc->start = start;
		if (zvrf->tbl_mgr->end - size + 1 < start) {
			flog_err(EC_ZEBRA_TM_EXHAUSTED_IDS,
				 "Reached max table id. Start/Size %u/%u",
				 start, size);
			XFREE(MTYPE_TM_CHUNK, tmc);
			return NULL;
		}
	}
	tmc->end = tmc->start + size - 1;
	tmc->proto = proto;
	tmc->instance = instance;
	listnode_add(zvrf->tbl_mgr->lc_list, tmc);

	return tmc;
}

/**
 * Core function, release no longer used table chunks
 *
 * @param proto Daemon protocol of client, to identify the owner
 * @param instance Instance, to identify the owner
 * @param start First table RT ID of the chunk
 * @param end Last table RT ID of the chunk
 * @return 0 on success, -1 otherwise
 */
int release_table_chunk(uint8_t proto, uint16_t instance, uint32_t start,
			uint32_t end, struct zebra_vrf *zvrf)
{
	struct listnode *node;
	struct table_manager_chunk *tmc;
	int ret = -1;
	struct table_manager *tbl_mgr;

	if (!zvrf)
		return -1;

	tbl_mgr = zvrf->tbl_mgr;
	if (!tbl_mgr)
		return ret;
	/* check that size matches */
	zlog_debug("Releasing table chunk: %u - %u", start, end);
	/* find chunk and disown */
	for (ALL_LIST_ELEMENTS_RO(tbl_mgr->lc_list, node, tmc)) {
		if (tmc->start != start)
			continue;
		if (tmc->end != end)
			continue;
		if (tmc->proto != proto || tmc->instance != instance) {
			flog_err(EC_ZEBRA_TM_DAEMON_MISMATCH,
				 "%s: Daemon mismatch!!", __func__);
			continue;
		}
		tmc->proto = NO_PROTO;
		tmc->instance = 0;
		ret = 0;
		break;
	}
	if (ret != 0)
		flog_err(EC_ZEBRA_TM_UNRELEASED_CHUNK,
			 "%s: Table chunk not released!!", __func__);

	return ret;
}

/**
 * Release table chunks from a client.
 *
 * Called on client disconnection or reconnection. It only releases chunks
 * with empty keep value.
 *
 * @param client the client to release chunks from
 * @return Number of chunks released
 */
int release_daemon_table_chunks(struct zserv *client)
{
	uint8_t proto = client->proto;
	uint16_t instance = client->instance;
	struct listnode *node;
	struct table_manager_chunk *tmc;
	int count = 0;
	int ret;
	struct vrf *vrf;
	struct zebra_vrf *zvrf;

	RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
		zvrf = vrf->info;

		if (!zvrf)
			continue;
		if (!vrf_is_backend_netns() && vrf->vrf_id != VRF_DEFAULT)
			continue;
		for (ALL_LIST_ELEMENTS_RO(zvrf->tbl_mgr->lc_list, node, tmc)) {
			if (tmc->proto == proto && tmc->instance == instance) {
				ret = release_table_chunk(
					tmc->proto, tmc->instance, tmc->start,
					tmc->end, zvrf);
				if (ret == 0)
					count++;
			}
		}
	}
	zlog_debug("%s: Released %d table chunks", __func__, count);

	return count;
}

static void table_range_add(struct zebra_vrf *zvrf, uint32_t start,
			    uint32_t end)
{
	if (!zvrf->tbl_mgr)
		return;
	zvrf->tbl_mgr->start = start;
	zvrf->tbl_mgr->end = end;
}

void table_manager_disable(struct zebra_vrf *zvrf)
{
	if (!zvrf->tbl_mgr)
		return;
	if (!vrf_is_backend_netns()
	    && strcmp(zvrf_name(zvrf), VRF_DEFAULT_NAME)) {
		zvrf->tbl_mgr = NULL;
		return;
	}
	list_delete(&zvrf->tbl_mgr->lc_list);
	XFREE(MTYPE_TM_TABLE, zvrf->tbl_mgr);
	zvrf->tbl_mgr = NULL;
}

int table_manager_range(struct vty *vty, bool add, struct zebra_vrf *zvrf,
			const char *start_table_str, const char *end_table_str)
{
	uint32_t start;
	uint32_t end;

	if (add) {
		if (!start_table_str || !end_table_str) {
			vty_out(vty, "%% Labels not specified\n");
			return CMD_WARNING_CONFIG_FAILED;
		}
		start = atoi(start_table_str);
		end = atoi(end_table_str);
		if (end < start) {
			vty_out(vty, "%% End table is less than Start table\n");
			return CMD_WARNING_CONFIG_FAILED;
		}

#if !defined(GNU_LINUX)
/* BSD systems
 */
#else
		/* Linux Systems
		 */
		if ((start >= RT_TABLE_ID_COMPAT && start <= RT_TABLE_ID_LOCAL)
		    || (end >= RT_TABLE_ID_COMPAT
			&& end <= RT_TABLE_ID_LOCAL)) {
			vty_out(vty, "%% Values forbidden in range [%u;%u]\n",
				RT_TABLE_ID_COMPAT, RT_TABLE_ID_LOCAL);
			return CMD_WARNING_CONFIG_FAILED;
		}
		if (start < RT_TABLE_ID_COMPAT && end > RT_TABLE_ID_LOCAL) {
			vty_out(vty,
				"%% Range overlaps range [%u;%u] forbidden\n",
				RT_TABLE_ID_COMPAT, RT_TABLE_ID_LOCAL);
			return CMD_WARNING_CONFIG_FAILED;
		}
#endif
		if (zvrf->tbl_mgr
		    && ((zvrf->tbl_mgr->start && zvrf->tbl_mgr->start != start)
			|| (zvrf->tbl_mgr->end && zvrf->tbl_mgr->end != end))) {
			vty_out(vty,
				"%% New range will be taken into account at restart\n");
		}
		table_range_add(zvrf, start, end);
	} else
		table_range_add(zvrf, 0, 0);
	return CMD_SUCCESS;
}
Commit	Line	Data
acddc0ed	1	// SPDX-License-Identifier: GPL-2.0-or-later
50261279 PG	2	/* zebra table Manager for routing table identifier management
50261279 PG	3	* Copyright (C) 2018 6WIND
50261279 PG	4	*/
50261279 PG	5
453844ab QY	6	#include "zebra.h"
453844ab QY	7
50261279 PG	8	#include <stdio.h>
	9	#include <string.h>
	10	#include <sys/types.h>
	11
50261279 PG	12	#include "lib/log.h"
	13	#include "lib/memory.h"
	14	#include "lib/table.h"
	15	#include "lib/network.h"
	16	#include "lib/stream.h"
	17	#include "lib/zclient.h"
	18	#include "lib/libfrr.h"
	19	#include "lib/vrf.h"
	20
453844ab QY	21	#include "zebra/zserv.h"
	22	#include "zebra/zebra_vrf.h"
	23	#include "zebra/label_manager.h" /* for NO_PROTO */
	24	#include "zebra/table_manager.h"
43e52561	25	#include "zebra/zebra_errors.h"
50261279 PG	26
	27	/* routing table identifiers
	28	*
	29	*/
cae8bc96	30	#if !defined(GNU_LINUX)
50261279 PG	31	/* BSD systems
	32	*/
	33	#else
	34	/* Linux Systems
	35	*/
	36	#define RT_TABLE_ID_LOCAL 255
	37	#define RT_TABLE_ID_MAIN 254
	38	#define RT_TABLE_ID_DEFAULT 253
	39	#define RT_TABLE_ID_COMPAT 252
	40	#define RT_TABLE_ID_UNSPEC 0
cae8bc96	41	#endif /* !def(GNU_LINUX) */
50261279 PG	42	#define RT_TABLE_ID_UNRESERVED_MIN 1
	43	#define RT_TABLE_ID_UNRESERVED_MAX 0xffffffff
	44
50261279 PG	45	DEFINE_MGROUP(TABLE_MGR, "Table Manager");
50261279 PG	46	DEFINE_MTYPE_STATIC(TABLE_MGR, TM_CHUNK, "Table Manager Chunk");
42d4b30e	47	DEFINE_MTYPE_STATIC(TABLE_MGR, TM_TABLE, "Table Manager Context");
50261279 PG	48
	49	static void delete_table_chunk(void *val)
	50	{
	51	XFREE(MTYPE_TM_CHUNK, val);
	52	}
	53
	54	/**
	55	* Init table manager
	56	*/
42d4b30e	57	void table_manager_enable(struct zebra_vrf *zvrf)
50261279	58	{
42d4b30e PG	59
42d4b30e PG	60	if (zvrf->tbl_mgr)
50261279	61	return;
9742796f IR	62	if (!vrf_is_backend_netns()
9742796f IR	63	&& strcmp(zvrf_name(zvrf), VRF_DEFAULT_NAME)) {
42d4b30e PG	64	struct zebra_vrf *def = zebra_vrf_lookup_by_id(VRF_DEFAULT);
	65
	66	if (def)
	67	zvrf->tbl_mgr = def->tbl_mgr;
	68	return;
	69	}
	70	zvrf->tbl_mgr = XCALLOC(MTYPE_TM_TABLE, sizeof(struct table_manager));
	71	zvrf->tbl_mgr->lc_list = list_new();
	72	zvrf->tbl_mgr->lc_list->del = delete_table_chunk;
50261279 PG	73	}
	74
	75	/**
	76	* Core function, assigns table chunks
	77	*
	78	* It first searches through the list to check if there's one available
	79	* (previously released). Otherwise it creates and assigns a new one
	80	*
	81	* @param proto Daemon protocol of client, to identify the owner
	82	* @param instance Instance, to identify the owner
	83	* @para size Size of the table chunk
	84	* @return Pointer to the assigned table chunk
	85	*/
	86	struct table_manager_chunk *assign_table_chunk(uint8_t proto, uint16_t instance,
42d4b30e PG	87	uint32_t size,
42d4b30e PG	88	struct zebra_vrf *zvrf)
50261279 PG	89	{
	90	struct table_manager_chunk *tmc;
	91	struct listnode *node;
	92	uint32_t start;
42d4b30e PG	93	bool manual_conf = false;
	94
	95	if (!zvrf)
	96	return NULL;
50261279 PG	97
50261279 PG	98	/* first check if there's one available */
42d4b30e	99	for (ALL_LIST_ELEMENTS_RO(zvrf->tbl_mgr->lc_list, node, tmc)) {
50261279 PG	100	if (tmc->proto == NO_PROTO
	101	&& tmc->end - tmc->start + 1 == size) {
	102	tmc->proto = proto;
	103	tmc->instance = instance;
	104	return tmc;
	105	}
	106	}
	107	/* otherwise create a new one */
	108	tmc = XCALLOC(MTYPE_TM_CHUNK, sizeof(struct table_manager_chunk));
50261279	109
42d4b30e PG	110	if (zvrf->tbl_mgr->start \|\| zvrf->tbl_mgr->end)
42d4b30e PG	111	manual_conf = true;
50261279 PG	112	/* table RT IDs range are [1;252] and [256;0xffffffff]
	113	* - check if the requested range can be within the first range,
	114	* otherwise elect second one
	115	* - TODO : vrf-lites have their own table identifier.
	116	* In that case, table_id should be removed from the table range.
	117	*/
42d4b30e PG	118	if (list_isempty(zvrf->tbl_mgr->lc_list)) {
	119	if (!manual_conf)
	120	start = RT_TABLE_ID_UNRESERVED_MIN;
	121	else
	122	start = zvrf->tbl_mgr->start;
	123	} else
50261279	124	start = ((struct table_manager_chunk *)listgetdata(
42d4b30e PG	125	listtail(zvrf->tbl_mgr->lc_list)))
	126	->end
	127	+ 1;
	128
	129	if (!manual_conf) {
50261279	130
cae8bc96	131	#if !defined(GNU_LINUX)
50261279 PG	132	/* BSD systems
	133	*/
	134	#else
	135	/* Linux Systems
	136	*/
42d4b30e PG	137	/* if not enough room space between MIN and COMPAT,
	138	* then begin after LOCAL
	139	*/
	140	if (start < RT_TABLE_ID_COMPAT
	141	&& (size > RT_TABLE_ID_COMPAT - RT_TABLE_ID_UNRESERVED_MIN))
	142	start = RT_TABLE_ID_LOCAL + 1;
cae8bc96	143	#endif /* !def(GNU_LINUX) */
42d4b30e PG	144	tmc->start = start;
	145	if (RT_TABLE_ID_UNRESERVED_MAX - size + 1 < start) {
	146	flog_err(EC_ZEBRA_TM_EXHAUSTED_IDS,
	147	"Reached max table id. Start/Size %u/%u",
	148	start, size);
	149	XFREE(MTYPE_TM_CHUNK, tmc);
	150	return NULL;
	151	}
	152	} else {
	153	tmc->start = start;
	154	if (zvrf->tbl_mgr->end - size + 1 < start) {
	155	flog_err(EC_ZEBRA_TM_EXHAUSTED_IDS,
	156	"Reached max table id. Start/Size %u/%u",
	157	start, size);
	158	XFREE(MTYPE_TM_CHUNK, tmc);
	159	return NULL;
	160	}
50261279 PG	161	}
	162	tmc->end = tmc->start + size - 1;
	163	tmc->proto = proto;
	164	tmc->instance = instance;
42d4b30e	165	listnode_add(zvrf->tbl_mgr->lc_list, tmc);
50261279 PG	166
	167	return tmc;
	168	}
	169
	170	/**
	171	* Core function, release no longer used table chunks
	172	*
	173	* @param proto Daemon protocol of client, to identify the owner
	174	* @param instance Instance, to identify the owner
	175	* @param start First table RT ID of the chunk
	176	* @param end Last table RT ID of the chunk
	177	* @return 0 on success, -1 otherwise
	178	*/
	179	int release_table_chunk(uint8_t proto, uint16_t instance, uint32_t start,
42d4b30e	180	uint32_t end, struct zebra_vrf *zvrf)
50261279 PG	181	{
	182	struct listnode *node;
	183	struct table_manager_chunk *tmc;
	184	int ret = -1;
42d4b30e PG	185	struct table_manager *tbl_mgr;
	186
	187	if (!zvrf)
	188	return -1;
50261279	189
42d4b30e PG	190	tbl_mgr = zvrf->tbl_mgr;
	191	if (!tbl_mgr)
	192	return ret;
50261279 PG	193	/* check that size matches */
	194	zlog_debug("Releasing table chunk: %u - %u", start, end);
	195	/* find chunk and disown */
42d4b30e	196	for (ALL_LIST_ELEMENTS_RO(tbl_mgr->lc_list, node, tmc)) {
50261279 PG	197	if (tmc->start != start)
	198	continue;
	199	if (tmc->end != end)
	200	continue;
	201	if (tmc->proto != proto \|\| tmc->instance != instance) {
e914ccbe	202	flog_err(EC_ZEBRA_TM_DAEMON_MISMATCH,
1c50c1c0	203	"%s: Daemon mismatch!!", __func__);
50261279 PG	204	continue;
	205	}
	206	tmc->proto = NO_PROTO;
	207	tmc->instance = 0;
	208	ret = 0;
	209	break;
	210	}
	211	if (ret != 0)
e914ccbe	212	flog_err(EC_ZEBRA_TM_UNRELEASED_CHUNK,
1c50c1c0	213	"%s: Table chunk not released!!", __func__);
50261279 PG	214
	215	return ret;
	216	}
	217
	218	/**
	219	* Release table chunks from a client.
	220	*
	221	* Called on client disconnection or reconnection. It only releases chunks
	222	* with empty keep value.
	223	*
453844ab	224	* @param client the client to release chunks from
50261279 PG	225	* @return Number of chunks released
50261279 PG	226	*/
453844ab	227	int release_daemon_table_chunks(struct zserv *client)
50261279	228	{
453844ab QY	229	uint8_t proto = client->proto;
453844ab QY	230	uint16_t instance = client->instance;
50261279 PG	231	struct listnode *node;
	232	struct table_manager_chunk *tmc;
	233	int count = 0;
	234	int ret;
42d4b30e PG	235	struct vrf *vrf;
42d4b30e PG	236	struct zebra_vrf *zvrf;
50261279	237
42d4b30e PG	238	RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
	239	zvrf = vrf->info;
	240
	241	if (!zvrf)
	242	continue;
	243	if (!vrf_is_backend_netns() && vrf->vrf_id != VRF_DEFAULT)
	244	continue;
	245	for (ALL_LIST_ELEMENTS_RO(zvrf->tbl_mgr->lc_list, node, tmc)) {
	246	if (tmc->proto == proto && tmc->instance == instance) {
	247	ret = release_table_chunk(
	248	tmc->proto, tmc->instance, tmc->start,
	249	tmc->end, zvrf);
	250	if (ret == 0)
	251	count++;
	252	}
50261279 PG	253	}
50261279 PG	254	}
50261279 PG	255	zlog_debug("%s: Released %d table chunks", __func__, count);
	256
	257	return count;
	258	}
	259
42d4b30e PG	260	static void table_range_add(struct zebra_vrf *zvrf, uint32_t start,
	261	uint32_t end)
	262	{
	263	if (!zvrf->tbl_mgr)
	264	return;
	265	zvrf->tbl_mgr->start = start;
	266	zvrf->tbl_mgr->end = end;
	267	}
	268
	269	void table_manager_disable(struct zebra_vrf *zvrf)
50261279	270	{
42d4b30e PG	271	if (!zvrf->tbl_mgr)
42d4b30e PG	272	return;
9742796f IR	273	if (!vrf_is_backend_netns()
9742796f IR	274	&& strcmp(zvrf_name(zvrf), VRF_DEFAULT_NAME)) {
42d4b30e	275	zvrf->tbl_mgr = NULL;
50261279	276	return;
42d4b30e PG	277	}
	278	list_delete(&zvrf->tbl_mgr->lc_list);
	279	XFREE(MTYPE_TM_TABLE, zvrf->tbl_mgr);
	280	zvrf->tbl_mgr = NULL;
	281	}
	282
	283	int table_manager_range(struct vty vty, bool add, struct zebra_vrf zvrf,
	284	const char start_table_str, const char end_table_str)
	285	{
	286	uint32_t start;
	287	uint32_t end;
	288
	289	if (add) {
	290	if (!start_table_str \|\| !end_table_str) {
	291	vty_out(vty, "%% Labels not specified\n");
	292	return CMD_WARNING_CONFIG_FAILED;
	293	}
	294	start = atoi(start_table_str);
	295	end = atoi(end_table_str);
	296	if (end < start) {
	297	vty_out(vty, "%% End table is less than Start table\n");
	298	return CMD_WARNING_CONFIG_FAILED;
	299	}
	300
	301	#if !defined(GNU_LINUX)
	302	/* BSD systems
	303	*/
	304	#else
	305	/* Linux Systems
	306	*/
	307	if ((start >= RT_TABLE_ID_COMPAT && start <= RT_TABLE_ID_LOCAL)
	308	\|\| (end >= RT_TABLE_ID_COMPAT
	309	&& end <= RT_TABLE_ID_LOCAL)) {
	310	vty_out(vty, "%% Values forbidden in range [%u;%u]\n",
	311	RT_TABLE_ID_COMPAT, RT_TABLE_ID_LOCAL);
	312	return CMD_WARNING_CONFIG_FAILED;
	313	}
	314	if (start < RT_TABLE_ID_COMPAT && end > RT_TABLE_ID_LOCAL) {
	315	vty_out(vty,
	316	"%% Range overlaps range [%u;%u] forbidden\n",
	317	RT_TABLE_ID_COMPAT, RT_TABLE_ID_LOCAL);
	318	return CMD_WARNING_CONFIG_FAILED;
	319	}
	320	#endif
	321	if (zvrf->tbl_mgr
	322	&& ((zvrf->tbl_mgr->start && zvrf->tbl_mgr->start != start)
	323	\|\| (zvrf->tbl_mgr->end && zvrf->tbl_mgr->end != end))) {
	324	vty_out(vty,
	325	"%% New range will be taken into account at restart\n");
	326	}
	327	table_range_add(zvrf, start, end);
	328	} else
	329	table_range_add(zvrf, 0, 0);
	330	return CMD_SUCCESS;
50261279	331	}