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/*
* PBR - vrf code
* Copyright (C) 2019 Cumulus Networks, Inc.
* Stephen Worley
*
* FRR 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.
*
* FRR 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 "pbr_vrf.h"
#include "pbr_memory.h"
#include "pbr_map.h"
#include "pbr_debug.h"
#include "pbr_nht.h"
#include "pbr_zebra.h"
DEFINE_MTYPE_STATIC(PBRD, PBR_MAP_VRF, "PBR Map VRF");
static struct pbr_vrf *pbr_vrf_alloc(void)
{
struct pbr_vrf *pbr_vrf;
pbr_vrf = XCALLOC(MTYPE_PBR_MAP_VRF, sizeof(struct pbr_vrf));
return pbr_vrf;
}
static void pbr_vrf_free(struct pbr_vrf *pbr_vrf)
{
XFREE(MTYPE_PBR_MAP_VRF, pbr_vrf);
}
static int pbr_vrf_new(struct vrf *vrf)
{
struct pbr_vrf *pbr_vrf;
DEBUGD(&pbr_dbg_event, "%s: %u (%s)", __func__, vrf->vrf_id, vrf->name);
pbr_vrf = pbr_vrf_alloc();
vrf->info = pbr_vrf;
pbr_vrf->vrf = vrf;
return 0;
}
static int pbr_vrf_enable(struct vrf *vrf)
{
DEBUGD(&pbr_dbg_event, "%s: %u (%s)", __func__, vrf->vrf_id, vrf->name);
pbr_nht_vrf_update(vrf->info);
pbr_map_vrf_update(vrf->info);
return 0;
}
static int pbr_vrf_disable(struct vrf *vrf)
{
DEBUGD(&pbr_dbg_event, "%s: %u (%s)", __func__, vrf->vrf_id, vrf->name);
pbr_map_vrf_update(vrf->info);
return 0;
}
static int pbr_vrf_delete(struct vrf *vrf)
{
DEBUGD(&pbr_dbg_event, "%s: %u (%s)", __func__, vrf->vrf_id, vrf->name);
/*
* Make sure vrf is always marked disabled first so we handle
* pbr rules using it.
*/
assert(!vrf_is_enabled(vrf));
pbr_vrf_free(vrf->info);
vrf->info = NULL;
return 0;
}
struct pbr_vrf *pbr_vrf_lookup_by_id(vrf_id_t vrf_id)
{
struct vrf *vrf;
vrf = vrf_lookup_by_id(vrf_id);
if (vrf)
return ((struct pbr_vrf *)vrf->info);
return NULL;
}
struct pbr_vrf *pbr_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 pbr_vrf *)vrf->info);
return NULL;
}
bool pbr_vrf_is_enabled(const struct pbr_vrf *pbr_vrf)
{
return vrf_is_enabled(pbr_vrf->vrf) ? true : false;
}
bool pbr_vrf_is_valid(const struct pbr_vrf *pbr_vrf)
{
if (vrf_is_backend_netns())
return false;
if (!pbr_vrf->vrf)
return false;
return pbr_vrf_is_enabled(pbr_vrf);
}
void pbr_vrf_init(void)
{
vrf_init(pbr_vrf_new, pbr_vrf_enable, pbr_vrf_disable, pbr_vrf_delete,
NULL);
}
void pbr_vrf_terminate(void)
{
struct vrf *vrf;
struct interface *ifp;
RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
FOR_ALL_INTERFACES (vrf, ifp)
pbr_if_del(ifp);
}
}
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