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/*
* STATICd - vrf code
* Copyright (C) 2018 Cumulus Networks, Inc.
* Donald Sharp
*
* This program 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 of the License, or (at your option)
* any later version.
*
* This program 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 "vrf.h"
#include "nexthop.h"
#include "table.h"
#include "srcdest_table.h"
#include "static_memory.h"
#include "static_vrf.h"
#include "static_routes.h"
#include "static_zebra.h"
#include "static_vty.h"
static void zebra_stable_node_cleanup(struct route_table *table,
struct route_node *node)
{
struct static_route *si, *next;
if (node->info)
for (si = node->info; si; si = next) {
next = si->next;
XFREE(MTYPE_STATIC_ROUTE, si);
}
}
static struct static_vrf *static_vrf_alloc(void)
{
struct route_table *table;
struct static_vrf *svrf;
safi_t safi;
afi_t afi;
svrf = XCALLOC(MTYPE_TMP, sizeof(struct static_vrf));
for (afi = AFI_IP; afi <= AFI_IP6; afi++) {
for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) {
if (afi == AFI_IP6)
table = srcdest_table_init();
else
table = route_table_init();
table->cleanup = zebra_stable_node_cleanup;
svrf->stable[afi][safi] = table;
}
}
return svrf;
}
static int static_vrf_new(struct vrf *vrf)
{
struct static_vrf *svrf;
svrf = static_vrf_alloc();
vrf->info = svrf;
svrf->vrf = vrf;
return 0;
}
static int static_vrf_enable(struct vrf *vrf)
{
static_zebra_vrf_register(vrf);
static_fixup_vrf_ids(vrf->info);
/*
* We may have static routes that are now possible to
* insert into the appropriate tables
*/
static_config_install_delayed_routes(vrf->info);
return 0;
}
static int static_vrf_disable(struct vrf *vrf)
{
static_zebra_vrf_unregister(vrf);
return 0;
}
static int static_vrf_delete(struct vrf *vrf)
{
struct route_table *table;
struct static_vrf *svrf;
safi_t safi;
afi_t afi;
svrf = vrf->info;
for (afi = AFI_IP; afi <= AFI_IP6; afi++) {
for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) {
table = svrf->stable[afi][safi];
route_table_finish(table);
svrf->stable[afi][safi] = NULL;
}
}
return 0;
}
/* Lookup the static routing table in a VRF. */
struct route_table *static_vrf_static_table(afi_t afi, safi_t safi,
struct static_vrf *svrf)
{
if (!svrf)
return NULL;
if (afi >= AFI_MAX || safi >= SAFI_MAX)
return NULL;
return svrf->stable[afi][safi];
}
struct static_vrf *static_vrf_lookup_by_id(vrf_id_t vrf_id)
{
struct vrf *vrf;
vrf = vrf_lookup_by_id(vrf_id);
if (vrf)
return ((struct static_vrf *)vrf->info);
return NULL;
}
struct static_vrf *static_vrf_lookup_by_name(const char *name)
{
struct vrf *vrf;
if (!name)
name = VRF_DEFAULT_NAME;
vrf = vrf_lookup_by_name(name);
if (vrf)
return ((struct static_vrf *)vrf->info);
return NULL;
}
static int static_vrf_config_write(struct vty *vty)
{
struct vrf *vrf;
RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
if (vrf->vrf_id != VRF_DEFAULT)
vty_frame(vty, "vrf %s\n", vrf->name);
static_config(vty, vrf->info, AFI_IP,
SAFI_UNICAST, "ip route");
static_config(vty, vrf->info, AFI_IP,
SAFI_MULTICAST, "ip mroute");
static_config(vty, vrf->info, AFI_IP6,
SAFI_UNICAST, "ipv6 route");
if (vrf->vrf_id != VRF_DEFAULT)
vty_endframe(vty, " exit-vrf\n!\n");
}
return 0;
}
int static_vrf_has_config(struct static_vrf *svrf)
{
struct route_table *table;
safi_t safi;
afi_t afi;
/*
* NOTE: This is a don't care for the default VRF, but we go through
* the motions to keep things consistent.
*/
for (afi = AFI_IP; afi < AFI_MAX; afi++) {
for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) {
table = svrf->stable[afi][safi];
if (!table)
continue;
if (route_table_count(table))
return 1;
}
}
return 0;
}
void static_vrf_init(void)
{
vrf_init(static_vrf_new, static_vrf_enable,
static_vrf_disable, static_vrf_delete, NULL);
vrf_cmd_init(static_vrf_config_write, &static_privs);
}
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