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
  17 along with GNU Zebra; see the file COPYING.  If not, write to the Free
  18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 02111-1307, USA.  */
  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 #define BGP_WRITE_PACKET_MAX 10U
  28
  29 /* When to refresh */
  30 #define REFRESH_IMMEDIATE 1
  31 #define REFRESH_DEFER     2
  32
  33 /* ORF Common part flag */
  34 #define ORF_COMMON_PART_ADD        0x00
  35 #define ORF_COMMON_PART_REMOVE     0x80
  36 #define ORF_COMMON_PART_REMOVE_ALL 0xC0
  37 #define ORF_COMMON_PART_PERMIT     0x00
  38 #define ORF_COMMON_PART_DENY       0x20
  39
  40 /* Packet send and receive function prototypes. */
  41 extern int bgp_read (struct thread *);
  42 extern int bgp_write (struct thread *);
  43 extern int bgp_connect_check (struct peer *, int change_state);
  44
  45 extern void bgp_keepalive_send (struct peer *);
  46 extern void bgp_open_send (struct peer *);
  47 extern void bgp_notify_send (struct peer *, u_int8_t, u_int8_t);
  48 extern void bgp_notify_send_with_data (struct peer *, u_int8_t, u_int8_t,
  49                                 u_int8_t *, size_t);
  50 extern void bgp_route_refresh_send (struct peer *, afi_t, safi_t, u_char, u_char, int);
  51 extern void bgp_capability_send (struct peer *, afi_t, safi_t, int, int);
  52 extern void bgp_default_update_send (struct peer *, struct attr *,
  53                               afi_t, safi_t, struct peer *);
  54 extern void bgp_default_withdraw_send (struct peer *, afi_t, safi_t);
  55
  56 extern int bgp_capability_receive (struct peer *, bgp_size_t);
  57
  58 extern int bgp_nlri_parse (struct peer *, struct attr *, struct bgp_nlri *, int mp_withdraw);
  59
  60 extern void bgp_update_restarted_peers (struct peer *);
  61 extern void bgp_update_implicit_eors (struct peer *);
  62 extern void bgp_check_update_delay (struct bgp *);
  63
  64 extern int bgp_packet_set_marker (struct stream *s, u_char type);
  65 extern int bgp_packet_set_size (struct stream *s);
  66 extern void bgp_packet_add (struct peer *peer, struct stream *s);
  67
  68 #endif /* _QUAGGA_BGP_PACKET_H */