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*After a restarting router comes up and the bgp session is successfully established with the peer. If the restarting router doesn’t have any route to send, it send EOR to the peer immediately before receiving updates from its peers. *Instead the restarting router should send EOR, if the selection deferral timer is not running OR count of eor received and eor required are matches then send EOR. Signed-off-by: Biswajit Sadhu <sadhub@vmware.com>
86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/* BGP packet management header.
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* Copyright (C) 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _QUAGGA_BGP_PACKET_H
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#define _QUAGGA_BGP_PACKET_H
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#include "hook.h"
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DECLARE_HOOK(bgp_packet_dump,
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(struct peer *peer, uint8_t type, bgp_size_t size,
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struct stream *s),
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(peer, type, size, s))
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DECLARE_HOOK(bgp_packet_send,
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(struct peer *peer, uint8_t type, bgp_size_t size,
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struct stream *s),
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(peer, type, size, s))
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#define BGP_NLRI_LENGTH 1U
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#define BGP_TOTAL_ATTR_LEN 2U
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#define BGP_UNFEASIBLE_LEN 2U
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/* When to refresh */
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#define REFRESH_IMMEDIATE 1
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#define REFRESH_DEFER 2
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/* ORF Common part flag */
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#define ORF_COMMON_PART_ADD 0x00
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#define ORF_COMMON_PART_REMOVE 0x80
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#define ORF_COMMON_PART_REMOVE_ALL 0xC0
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#define ORF_COMMON_PART_PERMIT 0x00
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#define ORF_COMMON_PART_DENY 0x20
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#define BGP_UPDATE_EOR_PKT(_peer, _afi, _safi, _s) \
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do { \
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_s = bgp_update_packet_eor(_peer, _afi, _safi); \
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if (_s) { \
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bgp_packet_add(_peer, _s); \
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} \
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} while (0)
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/* Packet send and receive function prototypes. */
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extern void bgp_keepalive_send(struct peer *);
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extern void bgp_open_send(struct peer *);
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extern void bgp_notify_send(struct peer *, uint8_t, uint8_t);
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extern void bgp_notify_send_with_data(struct peer *, uint8_t, uint8_t,
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uint8_t *, size_t);
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extern void bgp_route_refresh_send(struct peer *, afi_t, safi_t, uint8_t,
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uint8_t, int);
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extern void bgp_capability_send(struct peer *, afi_t, safi_t, int, int);
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extern int bgp_capability_receive(struct peer *, bgp_size_t);
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extern int bgp_nlri_parse(struct peer *, struct attr *, struct bgp_nlri *,
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int mp_withdraw);
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extern void bgp_update_restarted_peers(struct peer *);
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extern void bgp_update_implicit_eors(struct peer *);
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extern void bgp_check_update_delay(struct bgp *);
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extern int bgp_packet_set_marker(struct stream *s, uint8_t type);
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extern int bgp_packet_set_size(struct stream *s);
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extern int bgp_generate_updgrp_packets(struct thread *);
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extern int bgp_process_packet(struct thread *);
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extern void bgp_send_delayed_eor(struct bgp *bgp);
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#endif /* _QUAGGA_BGP_PACKET_H */
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