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/**
* @copyright Copyright (C) 2015 Cumulus Networks, Inc.
*
* This file is part of GNU Zebra.
*
* GNU Zebra 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.
*
* GNU Zebra 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 "prefix.h"
#include "vty.h"
#include "stream.h"
#include "zebra/zebra_router.h"
#include "zebra/zapi_msg.h"
#include "zebra/zebra_ptm.h"
#include "zebra/zebra_ptm_redistribute.h"
static int zsend_interface_bfd_update(int cmd, struct zserv *client,
struct interface *ifp, struct prefix *dp,
struct prefix *sp, int status,
vrf_id_t vrf_id)
{
int blen;
struct stream *s;
s = stream_new(ZEBRA_MAX_PACKET_SIZ);
zclient_create_header(s, cmd, vrf_id);
if (ifp)
stream_putl(s, ifp->ifindex);
else
stream_putl(s, 0);
/* BFD destination prefix information. */
stream_putc(s, dp->family);
blen = prefix_blen(dp);
stream_put(s, &dp->u.prefix, blen);
stream_putc(s, dp->prefixlen);
/* BFD status */
stream_putl(s, status);
/* BFD source prefix information. */
stream_putc(s, sp->family);
blen = prefix_blen(sp);
stream_put(s, &sp->u.prefix, blen);
stream_putc(s, sp->prefixlen);
/* c-bit bullshit */
stream_putc(s, 0);
/* Write packet size. */
stream_putw_at(s, 0, stream_get_endp(s));
client->if_bfd_cnt++;
return zserv_send_message(client, s);
}
void zebra_interface_bfd_update(struct interface *ifp, struct prefix *dp,
struct prefix *sp, int status, vrf_id_t vrf_id)
{
struct listnode *node, *nnode;
struct zserv *client;
for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) {
if (!IS_BFD_ENABLED_PROTOCOL(client->proto))
continue;
/* Notify to the protocol daemons. */
zsend_interface_bfd_update(ZEBRA_INTERFACE_BFD_DEST_UPDATE,
client, ifp, dp, sp, status, vrf_id);
}
}
static int zsend_bfd_peer_replay(int cmd, struct zserv *client)
{
struct stream *s;
s = stream_new(ZEBRA_MAX_PACKET_SIZ);
zclient_create_header(s, cmd, VRF_DEFAULT);
/* Write packet size. */
stream_putw_at(s, 0, stream_get_endp(s));
client->bfd_peer_replay_cnt++;
return zserv_send_message(client, s);
}
void zebra_bfd_peer_replay_req(void)
{
struct listnode *node, *nnode;
struct zserv *client;
for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) {
if (!IS_BFD_ENABLED_PROTOCOL(client->proto))
continue;
/* Notify to the protocol daemons. */
zsend_bfd_peer_replay(ZEBRA_BFD_DEST_REPLAY, client);
}
}
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