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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* STATICd - vrf code
* Copyright (C) 2018 Cumulus Networks, Inc.
* Donald Sharp
*/
#include <zebra.h>
#include "vrf.h"
#include "nexthop.h"
#include "table.h"
#include "srcdest_table.h"
#include "northbound_cli.h"
#include "static_vrf.h"
#include "static_routes.h"
#include "static_zebra.h"
DEFINE_MTYPE_STATIC(STATIC, STATIC_RTABLE_INFO, "Static Route Table Info");
static int svrf_name_compare(const struct static_vrf *a,
const struct static_vrf *b)
{
return strcmp(a->name, b->name);
}
RB_GENERATE(svrf_name_head, static_vrf, entry, svrf_name_compare);
struct svrf_name_head svrfs = RB_INITIALIZER(&svrfs);
static struct static_vrf *static_vrf_lookup_by_name(const char *name)
{
struct static_vrf svrf;
strlcpy(svrf.name, name, sizeof(svrf.name));
return RB_FIND(svrf_name_head, &svrfs, &svrf);
}
struct static_vrf *static_vrf_alloc(const char *name)
{
struct route_table *table;
struct static_vrf *svrf;
struct stable_info *info;
struct vrf *vrf;
safi_t safi;
afi_t afi;
svrf = XCALLOC(MTYPE_STATIC_RTABLE_INFO, sizeof(struct static_vrf));
strlcpy(svrf->name, name, sizeof(svrf->name));
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();
info = XCALLOC(MTYPE_STATIC_RTABLE_INFO,
sizeof(struct stable_info));
info->svrf = svrf;
info->afi = afi;
info->safi = safi;
route_table_set_info(table, info);
table->cleanup = zebra_stable_node_cleanup;
svrf->stable[afi][safi] = table;
}
}
RB_INSERT(svrf_name_head, &svrfs, svrf);
vrf = vrf_lookup_by_name(name);
if (vrf) {
svrf->vrf = vrf;
vrf->info = svrf;
}
return svrf;
}
void static_vrf_free(struct static_vrf *svrf)
{
struct route_table *table;
struct vrf *vrf;
safi_t safi;
afi_t afi;
void *info;
vrf = svrf->vrf;
if (vrf) {
vrf->info = NULL;
svrf->vrf = NULL;
}
RB_REMOVE(svrf_name_head, &svrfs, svrf);
for (afi = AFI_IP; afi <= AFI_IP6; afi++) {
for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) {
table = svrf->stable[afi][safi];
info = route_table_get_info(table);
route_table_finish(table);
XFREE(MTYPE_STATIC_RTABLE_INFO, info);
svrf->stable[afi][safi] = NULL;
}
}
XFREE(MTYPE_STATIC_RTABLE_INFO, svrf);
}
static int static_vrf_new(struct vrf *vrf)
{
struct static_vrf *svrf;
svrf = static_vrf_lookup_by_name(vrf->name);
if (svrf) {
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);
return 0;
}
static int static_vrf_disable(struct vrf *vrf)
{
static_cleanup_vrf_ids(vrf);
static_zebra_vrf_unregister(vrf);
return 0;
}
static int static_vrf_delete(struct vrf *vrf)
{
struct static_vrf *svrf;
svrf = vrf->info;
if (svrf) {
svrf->vrf = NULL;
vrf->info = 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];
}
void static_vrf_init(void)
{
vrf_init(static_vrf_new, static_vrf_enable, static_vrf_disable,
static_vrf_delete);
vrf_cmd_init(NULL);
}
void static_vrf_terminate(void)
{
struct static_vrf *svrf, *svrf_next;
RB_FOREACH_SAFE (svrf, svrf_name_head, &svrfs, svrf_next)
static_vrf_free(svrf);
vrf_terminate();
}
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