[mirror_frr.git] / zebra / zebra_vrf.c

/*
 * Copyright (C) 2016 CumulusNetworks
 *                    Donald Sharp
 *
 * 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 GNU Zebra; see the file COPYING.  If not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */
#include <zebra.h>

#include "log.h"
#include "linklist.h"
#include "memory.h"

#include "zebra/debug.h"
#include "zebra/zserv.h"
#include "zebra/rib.h"
#include "zebra/zebra_vrf.h"
#include "zebra/router-id.h"
#include "zebra/zebra_memory.h"
#include "zebra/zebra_static.h"
#include "zebra/zebra_mpls.h"

extern struct zebra_t zebrad;
struct list *zvrf_list;

/* VRF information update. */
static void
zebra_vrf_add_update (struct zebra_vrf *zvrf)
{
  struct listnode *node, *nnode;
  struct zserv *client;

  if (IS_ZEBRA_DEBUG_EVENT)
    zlog_debug ("MESSAGE: ZEBRA_VRF_ADD %s", zvrf->name);

  for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client))
    zsend_vrf_add (client, zvrf);
}

static void
zebra_vrf_delete_update (struct zebra_vrf *zvrf)
{
  struct listnode *node, *nnode;
  struct zserv *client;

  if (IS_ZEBRA_DEBUG_EVENT)
    zlog_debug ("MESSAGE: ZEBRA_VRF_DELETE %s", zvrf->name);

  for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client))
    zsend_vrf_delete (client, zvrf);
}

void
zebra_vrf_update_all (struct zserv *client)
{
  struct vrf *vrf;
  vrf_iter_t iter;

  for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter))
    {
      if ((vrf = vrf_iter2vrf (iter)) && vrf->vrf_id)
        zsend_vrf_add (client, vrf_info_lookup (vrf->vrf_id));
    }
}

/* Callback upon creating a new VRF. */
static int
zebra_vrf_new (vrf_id_t vrf_id, const char *name, void **info)
{
  struct zebra_vrf *zvrf = *info;

  if (IS_ZEBRA_DEBUG_EVENT)
    zlog_info ("ZVRF %s with id %u", name, vrf_id);

  if (! zvrf)
    {
      zvrf = zebra_vrf_list_lookup_by_name (name);
      if (!zvrf)
	{
	  zvrf = zebra_vrf_alloc (vrf_id, name);
	  zvrf->zns = zebra_ns_lookup (NS_DEFAULT); /* Point to the global (single) NS */
	  *info = (void *)zvrf;
	  router_id_init (zvrf);
	  listnode_add_sort (zvrf_list, zvrf);
	}
      else
        {
          *info = (void *)zvrf;
	  router_id_init (zvrf);
        }
    }

  if (zvrf->vrf_id == VRF_UNKNOWN)
    zvrf->vrf_id = vrf_id;

  return 0;
}

/*
 * Moving an interface amongst different vrf's
 * causes the interface to get a new ifindex
 * so we need to find static routes with
 * the old ifindex and replace with new
 * ifindex to insert back into the table
 */
void
zebra_vrf_static_route_interface_fixup (struct interface *ifp)
{
  afi_t afi;
  safi_t safi;
  struct zebra_vrf *zvrf = zebra_vrf_lookup (ifp->vrf_id);
  struct route_table *stable = NULL;
  struct route_node *rn = NULL;
  struct static_route *si = NULL;

  if (!zvrf)
    return;

  for (afi = AFI_IP; afi < AFI_MAX; afi++)
    {
      for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++)
        {
          stable = zvrf->stable[afi][safi];
          if (stable)
	    for (rn = route_top (stable); rn; rn = route_next (rn))
	      {
		if (rn->info)
		  {
		    si = rn->info;
		    if ((strcmp (si->ifname, ifp->name) == 0) &&
			(si->ifindex != ifp->ifindex))
		      {
			si->ifindex = ifp->ifindex;
			static_install_route (afi, safi, &rn->p, si);
		      }	  
		  }
	      }
	}
    }
  
}

/* Callback upon enabling a VRF. */
static int
zebra_vrf_enable (vrf_id_t vrf_id, const char *name, void **info)
{
  struct zebra_vrf *zvrf = (struct zebra_vrf *) (*info);
  struct route_table *stable = NULL;
  struct route_node *rn = NULL;
  struct static_route *si = NULL;
  struct interface *ifp = NULL;
  afi_t afi;
  safi_t safi;

  assert (zvrf);

  zebra_vrf_add_update (zvrf);

  for (afi = AFI_IP; afi < AFI_MAX; afi++)
    {
      for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++)
	{
	  stable = zvrf->stable[afi][safi];
	  if (stable)
	    {
	      for (rn = route_top (stable); rn; rn = route_next (rn))
		{
		  if (rn->info)
		    {
		      si = rn->info;
		      si->vrf_id = vrf_id;
		      if (si->ifindex)
		        {
                          ifp = if_lookup_by_name_vrf (si->ifname, si->vrf_id);
			  if (ifp)
                            si->ifindex = ifp->ifindex;
                          else
			    continue;
                        }
		      static_install_route (afi, safi, &rn->p, si);
		    }
		}
	    }
	}
    }
  return 0;
}

/* Callback upon disabling a VRF. */
static int
zebra_vrf_disable (vrf_id_t vrf_id, const char *name, void **info)
{
  struct zebra_vrf *zvrf = (struct zebra_vrf *)(*info);
  struct route_table *stable = NULL;
  struct route_node *rn = NULL;
  afi_t afi;
  safi_t safi;

  if (IS_ZEBRA_DEBUG_KERNEL)
    zlog_debug ("VRF %s id %u is now disabled.",
                zvrf->name, zvrf->vrf_id);

  for (afi = AFI_IP; afi < AFI_MAX; afi++)
    {
      for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++)
	{
	  stable = zvrf->stable[afi][safi];
	  if (stable)
	    {
	      for (rn = route_top (stable); rn; rn = route_next (rn))
		{
                  if (rn->info)
		    static_uninstall_route(afi, safi, &rn->p, rn->info);
		}
	    }
	}
    }
  return 0;
}

static int
zebra_vrf_delete (vrf_id_t vrf_id, const char *name, void **info)
{
  struct zebra_vrf *zvrf = (struct zebra_vrf *) (*info);

  assert (zvrf);

  zebra_vrf_delete_update (zvrf);

  rib_close_table (zvrf->table[AFI_IP][SAFI_UNICAST]);
  rib_close_table (zvrf->table[AFI_IP6][SAFI_UNICAST]);

  list_delete_all_node (zvrf->rid_all_sorted_list);
  list_delete_all_node (zvrf->rid_lo_sorted_list);

  zvrf->vrf_id = VRF_UNKNOWN;

  *info = NULL;
  return 0;
}

/* Lookup the routing table in a VRF based on both VRF-Id and table-id.
 * NOTE: Table-id is relevant only in the Default VRF.
 */
struct route_table *
zebra_vrf_table_with_table_id (afi_t afi, safi_t safi,
                               vrf_id_t vrf_id, u_int32_t table_id)
{
  struct route_table *table = NULL;

  if (afi >= AFI_MAX || safi >= SAFI_MAX)
    return NULL;

  if (vrf_id == VRF_DEFAULT)
    {
      if (table_id == RT_TABLE_MAIN ||
          table_id == zebrad.rtm_table_default)
        table = zebra_vrf_table (afi, safi, vrf_id);
      else
        table = zebra_vrf_other_route_table (afi, table_id, vrf_id);
    }
  else
      table = zebra_vrf_table (afi, safi, vrf_id);

  return table;
}

/*
 * Create a routing table for the specific AFI/SAFI in the given VRF.
 */
static void
zebra_vrf_table_create (struct zebra_vrf *zvrf, afi_t afi, safi_t safi)
{
  rib_table_info_t *info;
  struct route_table *table;

  assert (!zvrf->table[afi][safi]);

  table = route_table_init ();
  zvrf->table[afi][safi] = table;

  info = XCALLOC (MTYPE_RIB_TABLE_INFO, sizeof (*info));
  info->zvrf = zvrf;
  info->afi = afi;
  info->safi = safi;
  table->info = info;
}

/* Allocate new zebra VRF. */
struct zebra_vrf *
zebra_vrf_alloc (vrf_id_t vrf_id, const char *name)
{
  struct zebra_vrf *zvrf;

  zvrf = XCALLOC (MTYPE_ZEBRA_VRF, sizeof (struct zebra_vrf));

  /* Allocate routing table and static table.  */
  zebra_vrf_table_create (zvrf, AFI_IP, SAFI_UNICAST);
  zebra_vrf_table_create (zvrf, AFI_IP6, SAFI_UNICAST);
  zvrf->stable[AFI_IP][SAFI_UNICAST] = route_table_init ();
  zvrf->stable[AFI_IP6][SAFI_UNICAST] = route_table_init ();
  zebra_vrf_table_create (zvrf, AFI_IP, SAFI_MULTICAST);
  zebra_vrf_table_create (zvrf, AFI_IP6, SAFI_MULTICAST);
  zvrf->stable[AFI_IP][SAFI_MULTICAST] = route_table_init ();
  zvrf->stable[AFI_IP6][SAFI_MULTICAST] = route_table_init ();

  zvrf->rnh_table[AFI_IP] = route_table_init();
  zvrf->rnh_table[AFI_IP6] = route_table_init();

  zvrf->import_check_table[AFI_IP] = route_table_init();
  zvrf->import_check_table[AFI_IP6] = route_table_init();

  /* Set VRF ID */
  zvrf->vrf_id = vrf_id;

  if (name)
    {
      strncpy (zvrf->name, name, strlen(name));
      zvrf->name[strlen(name)] = '\0';
    }

  zebra_mpls_init_tables (zvrf);

  return zvrf;
}

/* Lookup VRF by identifier.  */
struct zebra_vrf *
zebra_vrf_lookup (vrf_id_t vrf_id)
{
  return vrf_info_lookup (vrf_id);
}

/* Lookup the zvrf in the zvrf_list. */
struct zebra_vrf *
zebra_vrf_list_lookup_by_name (const char *name)
{
  struct listnode *node;
  struct zebra_vrf *zvrf;

  if (!name)
    name = VRF_DEFAULT_NAME;

  for (ALL_LIST_ELEMENTS_RO (zvrf_list, node, zvrf))
    {
      if (strcmp(name, zvrf->name) == 0)
        return zvrf;
    }
  return NULL;
}

/* Lookup the routing table in an enabled VRF. */
struct route_table *
zebra_vrf_table (afi_t afi, safi_t safi, vrf_id_t vrf_id)
{
  struct zebra_vrf *zvrf = vrf_info_lookup (vrf_id);

  if (!zvrf)
    return NULL;

  if (afi >= AFI_MAX || safi >= SAFI_MAX)
    return NULL;

  return zvrf->table[afi][safi];
}

/* Lookup the static routing table in a VRF. */
struct route_table *
zebra_vrf_static_table (afi_t afi, safi_t safi, struct zebra_vrf *zvrf)
{
  if (!zvrf)
    return NULL;

  if (afi >= AFI_MAX || safi >= SAFI_MAX)
    return NULL;

  return zvrf->stable[afi][safi];
}

struct route_table *
zebra_vrf_other_route_table (afi_t afi, u_int32_t table_id, vrf_id_t vrf_id)
{
  struct zebra_vrf *zvrf;
  rib_table_info_t *info;
  struct route_table *table;

  zvrf = vrf_info_lookup (vrf_id);
  if (! zvrf)
    return NULL;

  if(afi >= AFI_MAX)
    return NULL;

  if (table_id >= ZEBRA_KERNEL_TABLE_MAX)
    return NULL;

  if ((vrf_id == VRF_DEFAULT) && (table_id != RT_TABLE_MAIN) && (table_id != zebrad.rtm_table_default))
    {
      if (zvrf->other_table[afi][table_id] == NULL)
        {
          table = route_table_init();
          info = XCALLOC (MTYPE_RIB_TABLE_INFO, sizeof (*info));
          info->zvrf = zvrf;
          info->afi = afi;
          info->safi = SAFI_UNICAST;
          table->info = info;
          zvrf->other_table[afi][table_id] = table;
        }

      return (zvrf->other_table[afi][table_id]);
    }

  return zvrf->table[afi][SAFI_UNICAST];
}

/* Zebra VRF initialization. */
void
zebra_vrf_init (void)
{
  vrf_add_hook (VRF_NEW_HOOK, zebra_vrf_new);
  vrf_add_hook (VRF_ENABLE_HOOK, zebra_vrf_enable);
  vrf_add_hook (VRF_DISABLE_HOOK, zebra_vrf_disable);
  vrf_add_hook (VRF_DELETE_HOOK, zebra_vrf_delete);

  zvrf_list = list_new ();

  vrf_init ();
}
Commit	Line	Data
7c551956 DS	1	/*
	2	* Copyright (C) 2016 CumulusNetworks
	3	* Donald Sharp
	4	*
	5	* This file is part of Quagga
	6	*
	7	* Quagga is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2, or (at your option) any
	10	* later version.
	11	*
	12	* Quagga is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with GNU Zebra; see the file COPYING. If not, write to the Free
	19	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	20	* 02111-1307, USA.
	21	*/
	22	#include <zebra.h>
	23
	24	#include "log.h"
	25	#include "linklist.h"
4a1ab8e4	26	#include "memory.h"
7c551956 DS	27
	28	#include "zebra/debug.h"
	29	#include "zebra/zserv.h"
	30	#include "zebra/rib.h"
	31	#include "zebra/zebra_vrf.h"
	32	#include "zebra/router-id.h"
4a1ab8e4	33	#include "zebra/zebra_memory.h"
28f6dde8	34	#include "zebra/zebra_static.h"
7758e3f3	35	#include "zebra/zebra_mpls.h"
7c551956 DS	36
7c551956 DS	37	extern struct zebra_t zebrad;
871d39b3	38	struct list *zvrf_list;
7c551956 DS	39
	40	/* VRF information update. */
	41	static void
	42	zebra_vrf_add_update (struct zebra_vrf *zvrf)
	43	{
	44	struct listnode node, nnode;
	45	struct zserv *client;
	46
	47	if (IS_ZEBRA_DEBUG_EVENT)
	48	zlog_debug ("MESSAGE: ZEBRA_VRF_ADD %s", zvrf->name);
	49
	50	for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client))
	51	zsend_vrf_add (client, zvrf);
	52	}
	53
	54	static void
	55	zebra_vrf_delete_update (struct zebra_vrf *zvrf)
	56	{
	57	struct listnode node, nnode;
	58	struct zserv *client;
	59
	60	if (IS_ZEBRA_DEBUG_EVENT)
	61	zlog_debug ("MESSAGE: ZEBRA_VRF_DELETE %s", zvrf->name);
	62
	63	for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client))
	64	zsend_vrf_delete (client, zvrf);
	65	}
	66
	67	void
	68	zebra_vrf_update_all (struct zserv *client)
	69	{
	70	struct vrf *vrf;
	71	vrf_iter_t iter;
	72
	73	for (iter = vrf_first (); iter != VRF_ITER_INVALID; iter = vrf_next (iter))
	74	{
	75	if ((vrf = vrf_iter2vrf (iter)) && vrf->vrf_id)
	76	zsend_vrf_add (client, vrf_info_lookup (vrf->vrf_id));
	77	}
	78	}
	79
	80	/* Callback upon creating a new VRF. */
	81	static int
	82	zebra_vrf_new (vrf_id_t vrf_id, const char name, void *info)
	83	{
	84	struct zebra_vrf zvrf = info;
	85
3f6d6a5d DS	86	if (IS_ZEBRA_DEBUG_EVENT)
3f6d6a5d DS	87	zlog_info ("ZVRF %s with id %u", name, vrf_id);
7c551956 DS	88
	89	if (! zvrf)
	90	{
871d39b3 DS	91	zvrf = zebra_vrf_list_lookup_by_name (name);
	92	if (!zvrf)
	93	{
	94	zvrf = zebra_vrf_alloc (vrf_id, name);
	95	zvrf->zns = zebra_ns_lookup (NS_DEFAULT); /* Point to the global (single) NS */
	96	info = (void )zvrf;
	97	router_id_init (zvrf);
	98	listnode_add_sort (zvrf_list, zvrf);
	99	}
	100	else
	101	{
	102	info = (void )zvrf;
	103	router_id_init (zvrf);
	104	}
7c551956 DS	105	}
7c551956 DS	106
34f8e6af DS	107	if (zvrf->vrf_id == VRF_UNKNOWN)
	108	zvrf->vrf_id = vrf_id;
	109
7c551956 DS	110	return 0;
	111	}
	112
fb148af4 DS	113	/*
	114	* Moving an interface amongst different vrf's
	115	* causes the interface to get a new ifindex
	116	* so we need to find static routes with
	117	* the old ifindex and replace with new
	118	* ifindex to insert back into the table
	119	*/
	120	void
	121	zebra_vrf_static_route_interface_fixup (struct interface *ifp)
	122	{
	123	afi_t afi;
	124	safi_t safi;
	125	struct zebra_vrf *zvrf = zebra_vrf_lookup (ifp->vrf_id);
	126	struct route_table *stable = NULL;
	127	struct route_node *rn = NULL;
	128	struct static_route *si = NULL;
	129
	130	if (!zvrf)
	131	return;
	132
	133	for (afi = AFI_IP; afi < AFI_MAX; afi++)
	134	{
	135	for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++)
	136	{
	137	stable = zvrf->stable[afi][safi];
	138	if (stable)
	139	for (rn = route_top (stable); rn; rn = route_next (rn))
	140	{
	141	if (rn->info)
	142	{
	143	si = rn->info;
	144	if ((strcmp (si->ifname, ifp->name) == 0) &&
	145	(si->ifindex != ifp->ifindex))
	146	{
	147	si->ifindex = ifp->ifindex;
	148	static_install_route (afi, safi, &rn->p, si);
	149	}
	150	}
	151	}
	152	}
	153	}
	154
	155	}
	156
7c551956 DS	157	/* Callback upon enabling a VRF. */
	158	static int
	159	zebra_vrf_enable (vrf_id_t vrf_id, const char name, void *info)
	160	{
	161	struct zebra_vrf zvrf = (struct zebra_vrf ) (*info);
fb148af4 DS	162	struct route_table *stable = NULL;
	163	struct route_node *rn = NULL;
	164	struct static_route *si = NULL;
	165	struct interface *ifp = NULL;
	166	afi_t afi;
	167	safi_t safi;
7c551956 DS	168
	169	assert (zvrf);
	170
	171	zebra_vrf_add_update (zvrf);
	172
fb148af4 DS	173	for (afi = AFI_IP; afi < AFI_MAX; afi++)
	174	{
	175	for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++)
	176	{
	177	stable = zvrf->stable[afi][safi];
	178	if (stable)
	179	{
	180	for (rn = route_top (stable); rn; rn = route_next (rn))
	181	{
	182	if (rn->info)
	183	{
	184	si = rn->info;
	185	si->vrf_id = vrf_id;
	186	if (si->ifindex)
	187	{
	188	ifp = if_lookup_by_name_vrf (si->ifname, si->vrf_id);
	189	if (ifp)
	190	si->ifindex = ifp->ifindex;
	191	else
	192	continue;
	193	}
	194	static_install_route (afi, safi, &rn->p, si);
	195	}
	196	}
	197	}
	198	}
	199	}
7c551956 DS	200	return 0;
	201	}
	202
	203	/* Callback upon disabling a VRF. */
	204	static int
	205	zebra_vrf_disable (vrf_id_t vrf_id, const char name, void *info)
	206	{
	207	struct zebra_vrf zvrf = (struct zebra_vrf )(*info);
fb148af4 DS	208	struct route_table *stable = NULL;
	209	struct route_node *rn = NULL;
	210	afi_t afi;
	211	safi_t safi;
7c551956 DS	212
	213	if (IS_ZEBRA_DEBUG_KERNEL)
	214	zlog_debug ("VRF %s id %u is now disabled.",
	215	zvrf->name, zvrf->vrf_id);
	216
fb148af4 DS	217	for (afi = AFI_IP; afi < AFI_MAX; afi++)
	218	{
	219	for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++)
	220	{
	221	stable = zvrf->stable[afi][safi];
	222	if (stable)
	223	{
	224	for (rn = route_top (stable); rn; rn = route_next (rn))
	225	{
	226	if (rn->info)
	227	static_uninstall_route(afi, safi, &rn->p, rn->info);
	228	}
	229	}
	230	}
	231	}
7c551956 DS	232	return 0;
	233	}
	234
	235	static int
	236	zebra_vrf_delete (vrf_id_t vrf_id, const char name, void *info)
	237	{
	238	struct zebra_vrf zvrf = (struct zebra_vrf ) (*info);
	239
	240	assert (zvrf);
	241
	242	zebra_vrf_delete_update (zvrf);
	243
	244	rib_close_table (zvrf->table[AFI_IP][SAFI_UNICAST]);
	245	rib_close_table (zvrf->table[AFI_IP6][SAFI_UNICAST]);
	246
	247	list_delete_all_node (zvrf->rid_all_sorted_list);
	248	list_delete_all_node (zvrf->rid_lo_sorted_list);
	249
871d39b3	250	zvrf->vrf_id = VRF_UNKNOWN;
7c551956	251
871d39b3	252	*info = NULL;
7c551956 DS	253	return 0;
	254	}
	255
	256	/* Lookup the routing table in a VRF based on both VRF-Id and table-id.
	257	* NOTE: Table-id is relevant only in the Default VRF.
	258	*/
	259	struct route_table *
	260	zebra_vrf_table_with_table_id (afi_t afi, safi_t safi,
	261	vrf_id_t vrf_id, u_int32_t table_id)
	262	{
	263	struct route_table *table = NULL;
	264
	265	if (afi >= AFI_MAX \|\| safi >= SAFI_MAX)
	266	return NULL;
	267
	268	if (vrf_id == VRF_DEFAULT)
	269	{
	270	if (table_id == RT_TABLE_MAIN \|\|
	271	table_id == zebrad.rtm_table_default)
	272	table = zebra_vrf_table (afi, safi, vrf_id);
	273	else
	274	table = zebra_vrf_other_route_table (afi, table_id, vrf_id);
	275	}
	276	else
	277	table = zebra_vrf_table (afi, safi, vrf_id);
	278
	279	return table;
	280	}
	281
	282	/*
	283	* Create a routing table for the specific AFI/SAFI in the given VRF.
	284	*/
	285	static void
	286	zebra_vrf_table_create (struct zebra_vrf *zvrf, afi_t afi, safi_t safi)
	287	{
	288	rib_table_info_t *info;
	289	struct route_table *table;
	290
	291	assert (!zvrf->table[afi][safi]);
	292
	293	table = route_table_init ();
	294	zvrf->table[afi][safi] = table;
	295
	296	info = XCALLOC (MTYPE_RIB_TABLE_INFO, sizeof (*info));
	297	info->zvrf = zvrf;
	298	info->afi = afi;
	299	info->safi = safi;
	300	table->info = info;
	301	}
	302
	303	/* Allocate new zebra VRF. */
	304	struct zebra_vrf *
	305	zebra_vrf_alloc (vrf_id_t vrf_id, const char *name)
	306	{
	307	struct zebra_vrf *zvrf;
	308
	309	zvrf = XCALLOC (MTYPE_ZEBRA_VRF, sizeof (struct zebra_vrf));
	310
	311	/* Allocate routing table and static table. */
	312	zebra_vrf_table_create (zvrf, AFI_IP, SAFI_UNICAST);
	313	zebra_vrf_table_create (zvrf, AFI_IP6, SAFI_UNICAST);
	314	zvrf->stable[AFI_IP][SAFI_UNICAST] = route_table_init ();
	315	zvrf->stable[AFI_IP6][SAFI_UNICAST] = route_table_init ();
	316	zebra_vrf_table_create (zvrf, AFI_IP, SAFI_MULTICAST);
317	zebra_vrf_table_create (zvrf, AFI_IP6, SAFI_MULTICAST);
318	zvrf->stable[AFI_IP][SAFI_MULTICAST] = route_table_init ();
319	zvrf->stable[AFI_IP6][SAFI_MULTICAST] = route_table_init ();
320
321	zvrf->rnh_table[AFI_IP] = route_table_init();
322	zvrf->rnh_table[AFI_IP6] = route_table_init();
323
324	zvrf->import_check_table[AFI_IP] = route_table_init();
325	zvrf->import_check_table[AFI_IP6] = route_table_init();
326
327	/* Set VRF ID */
328	zvrf->vrf_id = vrf_id;
329
330	if (name)
331	{
332	strncpy (zvrf->name, name, strlen(name));
333	zvrf->name[strlen(name)] = '\0';
334	}
335
7758e3f3	336	zebra_mpls_init_tables (zvrf);
7758e3f3	337
7c551956 DS	338	return zvrf;
	339	}
	340
	341	/* Lookup VRF by identifier. */
	342	struct zebra_vrf *
	343	zebra_vrf_lookup (vrf_id_t vrf_id)
	344	{
	345	return vrf_info_lookup (vrf_id);
	346	}
	347
871d39b3 DS	348	/* Lookup the zvrf in the zvrf_list. */
	349	struct zebra_vrf *
	350	zebra_vrf_list_lookup_by_name (const char *name)
	351	{
	352	struct listnode *node;
	353	struct zebra_vrf *zvrf;
	354
a3d21ef3 DS	355	if (!name)
	356	name = VRF_DEFAULT_NAME;
	357
	358	for (ALL_LIST_ELEMENTS_RO (zvrf_list, node, zvrf))
	359	{
	360	if (strcmp(name, zvrf->name) == 0)
	361	return zvrf;
	362	}
871d39b3 DS	363	return NULL;
	364	}
	365
7c551956 DS	366	/* Lookup the routing table in an enabled VRF. */
	367	struct route_table *
	368	zebra_vrf_table (afi_t afi, safi_t safi, vrf_id_t vrf_id)
	369	{
	370	struct zebra_vrf *zvrf = vrf_info_lookup (vrf_id);
	371
	372	if (!zvrf)
	373	return NULL;
	374
	375	if (afi >= AFI_MAX \|\| safi >= SAFI_MAX)
	376	return NULL;
	377
	378	return zvrf->table[afi][safi];
	379	}
	380
	381	/* Lookup the static routing table in a VRF. */
	382	struct route_table *
01bb6d57	383	zebra_vrf_static_table (afi_t afi, safi_t safi, struct zebra_vrf *zvrf)
7c551956	384	{
7c551956 DS	385	if (!zvrf)
	386	return NULL;
	387
	388	if (afi >= AFI_MAX \|\| safi >= SAFI_MAX)
	389	return NULL;
	390
	391	return zvrf->stable[afi][safi];
	392	}
	393
	394	struct route_table *
	395	zebra_vrf_other_route_table (afi_t afi, u_int32_t table_id, vrf_id_t vrf_id)
	396	{
	397	struct zebra_vrf *zvrf;
	398	rib_table_info_t *info;
	399	struct route_table *table;
	400
	401	zvrf = vrf_info_lookup (vrf_id);
	402	if (! zvrf)
	403	return NULL;
	404
	405	if(afi >= AFI_MAX)
	406	return NULL;
	407
	408	if (table_id >= ZEBRA_KERNEL_TABLE_MAX)
	409	return NULL;
	410
	411	if ((vrf_id == VRF_DEFAULT) && (table_id != RT_TABLE_MAIN) && (table_id != zebrad.rtm_table_default))
	412	{
	413	if (zvrf->other_table[afi][table_id] == NULL)
	414	{
	415	table = route_table_init();
	416	info = XCALLOC (MTYPE_RIB_TABLE_INFO, sizeof (*info));
	417	info->zvrf = zvrf;
	418	info->afi = afi;
	419	info->safi = SAFI_UNICAST;
	420	table->info = info;
	421	zvrf->other_table[afi][table_id] = table;
	422	}
	423
	424	return (zvrf->other_table[afi][table_id]);
	425	}
	426
	427	return zvrf->table[afi][SAFI_UNICAST];
	428	}
	429
	430	/* Zebra VRF initialization. */
	431	void
	432	zebra_vrf_init (void)
	433	{
	434	vrf_add_hook (VRF_NEW_HOOK, zebra_vrf_new);
	435	vrf_add_hook (VRF_ENABLE_HOOK, zebra_vrf_enable);
	436	vrf_add_hook (VRF_DISABLE_HOOK, zebra_vrf_disable);
	437	vrf_add_hook (VRF_DELETE_HOOK, zebra_vrf_delete);
	438
871d39b3 DS	439	zvrf_list = list_new ();
871d39b3 DS	440
7c551956 DS	441	vrf_init ();
7c551956 DS	442	}