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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 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 "prefix.h"
#include "vty.h"
#include "stream.h"
#include "zebra/zserv.h"
#include "zebra/zebra_ptm_redistribute.h"
/* master zebra server structure */
extern struct zebra_t zebrad;
static int
zsend_interface_bfd_update (int cmd, struct zserv *client,
struct interface *ifp, struct prefix *dp,
struct prefix *sp, int status)
{
int blen;
struct stream *s;
/* Check this client need interface information. */
if (! client->ifinfo)
return 0;
s = client->obuf;
stream_reset (s);
zserv_create_header (s, cmd, (ifp ? ifp->vrf_id : VRF_DEFAULT));
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);
/* Write packet size. */
stream_putw_at (s, 0, stream_get_endp (s));
client->if_bfd_cnt++;
return zebra_server_send_message(client);
}
void
zebra_interface_bfd_update (struct interface *ifp, struct prefix *dp,
struct prefix *sp, int status)
{
struct listnode *node, *nnode;
struct zserv *client;
for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client))
{
/* Supporting for OSPF and BGP */
if (client->proto != ZEBRA_ROUTE_OSPF && client->proto != ZEBRA_ROUTE_BGP
&& client->proto != ZEBRA_ROUTE_OSPF6)
continue;
/* Notify to the protocol daemons. */
zsend_interface_bfd_update (ZEBRA_INTERFACE_BFD_DEST_UPDATE, client, ifp,
dp, sp, status);
}
}
static int
zsend_bfd_peer_replay (int cmd, struct zserv *client)
{
struct stream *s;
s = client->obuf;
stream_reset (s);
zserv_create_header (s, cmd, VRF_DEFAULT); //Pending:
/* Write packet size. */
stream_putw_at (s, 0, stream_get_endp (s));
client->bfd_peer_replay_cnt++;
return zebra_server_send_message(client);
}
void
zebra_bfd_peer_replay_req (void)
{
struct listnode *node, *nnode;
struct zserv *client;
for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client))
{
/* Supporting for BGP */
if ((client->proto != ZEBRA_ROUTE_BGP) &&
(client->proto != ZEBRA_ROUTE_OSPF) &&
(client->proto != ZEBRA_ROUTE_OSPF6))
continue;
/* Notify to the protocol daemons. */
zsend_bfd_peer_replay (ZEBRA_BFD_DEST_REPLAY, client);
}
}
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