bgpd/bgp_nexthop.h

   1 /* BGP nexthop scan
   2    Copyright (C) 2000 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_NEXTHOP_H
  22 #define _QUAGGA_BGP_NEXTHOP_H
  23
  24 #include "if.h"
  25
  26 #define BGP_SCAN_INTERVAL_DEFAULT   60
  27 #define BGP_IMPORT_INTERVAL_DEFAULT 15
  28
  29 /* BGP nexthop cache value structure. */
  30 struct bgp_nexthop_cache
  31 {
  32   /* This nexthop exists in IGP. */
  33   u_char valid;
  34
  35   /* Nexthop is changed. */
  36   u_char changed;
  37
  38   /* Nexthop is changed. */
  39   u_char metricchanged;
  40
  41   /* IGP route's metric. */
  42   u_int32_t metric;
  43
  44   /* Nexthop number and nexthop linked list.*/
  45   u_char nexthop_num;
  46   struct nexthop *nexthop;
  47 };
  48
  49 extern void bgp_scan_init (void);
  50 extern void bgp_scan_finish (void);
  51 extern int bgp_nexthop_lookup (afi_t, struct peer *peer, struct bgp_info *,
  52                         int *, int *);
  53 extern void bgp_connected_add (struct connected *c);
  54 extern void bgp_connected_delete (struct connected *c);
  55 extern int bgp_multiaccess_check_v4 (struct in_addr, char *);
  56 extern int bgp_config_write_scan_time (struct vty *);
  57 extern int bgp_nexthop_check_ebgp (afi_t, struct attr *);
  58 extern int bgp_nexthop_self (afi_t, struct attr *);
  59
  60 #endif /* _QUAGGA_BGP_NEXTHOP_H */