bgpd/bgp_packet.h

   1 /* BGP packet management header.
   2  * Copyright (C) 1999 Kunihiro Ishiguro
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _QUAGGA_BGP_PACKET_H
  22 #define _QUAGGA_BGP_PACKET_H
  23
  24 #define BGP_NLRI_LENGTH       1U
  25 #define BGP_TOTAL_ATTR_LEN    2U
  26 #define BGP_UNFEASIBLE_LEN    2U
  27
  28 /* When to refresh */
  29 #define REFRESH_IMMEDIATE 1
  30 #define REFRESH_DEFER     2
  31
  32 /* ORF Common part flag */
  33 #define ORF_COMMON_PART_ADD        0x00
  34 #define ORF_COMMON_PART_REMOVE     0x80
  35 #define ORF_COMMON_PART_REMOVE_ALL 0xC0
  36 #define ORF_COMMON_PART_PERMIT     0x00
  37 #define ORF_COMMON_PART_DENY       0x20
  38
  39 /* Packet send and receive function prototypes. */
  40 extern void bgp_keepalive_send(struct peer *);
  41 extern void bgp_open_send(struct peer *);
  42 extern void bgp_notify_send(struct peer *, uint8_t, uint8_t);
  43 extern void bgp_notify_send_with_data(struct peer *, uint8_t, uint8_t,
  44                                       uint8_t *, size_t);
  45 extern void bgp_route_refresh_send(struct peer *, afi_t, safi_t, uint8_t,
  46                                    uint8_t, int);
  47 extern void bgp_capability_send(struct peer *, afi_t, safi_t, int, int);
  48 extern void bgp_default_update_send(struct peer *, struct attr *, afi_t, safi_t,
  49                                     struct peer *);
  50 extern void bgp_default_withdraw_send(struct peer *, afi_t, safi_t);
  51
  52 extern int bgp_capability_receive(struct peer *, bgp_size_t);
  53
  54 extern int bgp_nlri_parse(struct peer *, struct attr *, struct bgp_nlri *,
  55                           int mp_withdraw);
  56
  57 extern void bgp_update_restarted_peers(struct peer *);
  58 extern void bgp_update_implicit_eors(struct peer *);
  59 extern void bgp_check_update_delay(struct bgp *);
  60
  61 extern int bgp_packet_set_marker(struct stream *s, uint8_t type);
  62 extern int bgp_packet_set_size(struct stream *s);
  63
  64 extern int bgp_generate_updgrp_packets(struct thread *);
  65 extern int bgp_process_packet(struct thread *);
  66
  67 #endif /* _QUAGGA_BGP_PACKET_H */