/** * @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" #include "zebra/zebra_memory.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); } }