diff options
Diffstat (limited to 'bgpd/bgp_route.h')
| -rw-r--r-- | bgpd/bgp_route.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/bgpd/bgp_route.h b/bgpd/bgp_route.h new file mode 100644 index 00000000..a11aa143 --- /dev/null +++ b/bgpd/bgp_route.h @@ -0,0 +1,159 @@ +/* BGP routing information base + Copyright (C) 1996, 97, 98, 2000 Kunihiro Ishiguro + +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 GNU Zebra; see the file COPYING. If not, write to the Free +Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ + +struct bgp_info +{ + /* For linked list. */ + struct bgp_info *next; + struct bgp_info *prev; + + /* BGP route type. This can be static, RIP, OSPF, BGP etc. */ + u_char type; + + /* When above type is BGP. This sub type specify BGP sub type + information. */ + u_char sub_type; +#define BGP_ROUTE_NORMAL 0 +#define BGP_ROUTE_STATIC 1 +#define BGP_ROUTE_AGGREGATE 2 +#define BGP_ROUTE_REDISTRIBUTE 3 + + /* BGP information status. */ + u_char flags; +#define BGP_INFO_IGP_CHANGED (1 << 0) +#define BGP_INFO_DAMPED (1 << 1) +#define BGP_INFO_HISTORY (1 << 2) +#define BGP_INFO_SELECTED (1 << 3) +#define BGP_INFO_VALID (1 << 4) +#define BGP_INFO_ATTR_CHANGED (1 << 5) +#define BGP_INFO_DMED_CHECK (1 << 6) +#define BGP_INFO_DMED_SELECTED (1 << 7) + + /* Peer structure. */ + struct peer *peer; + + /* Attribute structure. */ + struct attr *attr; + + /* This route is suppressed with aggregation. */ + int suppress; + + /* Nexthop reachability check. */ + u_int32_t igpmetric; + + /* Uptime. */ + time_t uptime; + + /* Pointer to dampening structure. */ + struct bgp_damp_info *damp_info; + + /* MPLS label. */ + u_char tag[3]; +}; + +/* BGP static route configuration. */ +struct bgp_static +{ + /* Backdoor configuration. */ + int backdoor; + + /* Import check status. */ + u_char valid; + + /* IGP metric. */ + u_int32_t igpmetric; + + /* IGP nexthop. */ + struct in_addr igpnexthop; + + /* BGP redistribute route-map. */ + struct + { + char *name; + struct route_map *map; + } rmap; + + /* MPLS label. */ + u_char tag[3]; +}; + +#define DISTRIBUTE_IN_NAME(F) ((F)->dlist[FILTER_IN].name) +#define DISTRIBUTE_IN(F) ((F)->dlist[FILTER_IN].alist) +#define DISTRIBUTE_OUT_NAME(F) ((F)->dlist[FILTER_OUT].name) +#define DISTRIBUTE_OUT(F) ((F)->dlist[FILTER_OUT].alist) + +#define PREFIX_LIST_IN_NAME(F) ((F)->plist[FILTER_IN].name) +#define PREFIX_LIST_IN(F) ((F)->plist[FILTER_IN].plist) +#define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name) +#define PREFIX_LIST_OUT(F) ((F)->plist[FILTER_OUT].plist) + +#define FILTER_LIST_IN_NAME(F) ((F)->aslist[FILTER_IN].name) +#define FILTER_LIST_IN(F) ((F)->aslist[FILTER_IN].aslist) +#define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name) +#define FILTER_LIST_OUT(F) ((F)->aslist[FILTER_OUT].aslist) + +#define ROUTE_MAP_IN_NAME(F) ((F)->map[FILTER_IN].name) +#define ROUTE_MAP_IN(F) ((F)->map[FILTER_IN].map) +#define ROUTE_MAP_OUT_NAME(F) ((F)->map[FILTER_OUT].name) +#define ROUTE_MAP_OUT(F) ((F)->map[FILTER_OUT].map) + +#define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name) +#define UNSUPPRESS_MAP(F) ((F)->usmap.map) + +/* Prototypes. */ +void bgp_route_init (); +void bgp_announce_route (struct peer *, afi_t, safi_t); +void bgp_announce_route_all (struct peer *); +void bgp_default_originate (struct peer *, afi_t, safi_t, int); +void bgp_soft_reconfig_in (struct peer *, afi_t, safi_t); +void bgp_clear_route (struct peer *, afi_t, safi_t); +void bgp_clear_route_all (struct peer *); +void bgp_clear_adj_in (struct peer *, afi_t, safi_t); + +int bgp_nlri_sanity_check (struct peer *, int, u_char *, bgp_size_t); +int bgp_nlri_parse (struct peer *, struct attr *, struct bgp_nlri *); + +int bgp_maximum_prefix_overflow (struct peer *, afi_t, safi_t); + +void bgp_redistribute_add (struct prefix *, struct in_addr *, u_int32_t, u_char); +void bgp_redistribute_delete (struct prefix *, u_char); +void bgp_redistribute_withdraw (struct bgp *, afi_t, int); + +void bgp_static_delete (struct bgp *); +void bgp_static_update (struct bgp *, struct prefix *, struct bgp_static *, + afi_t, safi_t); +void bgp_static_withdraw (struct bgp *, struct prefix *, afi_t, safi_t); + +int bgp_static_set_vpnv4 (struct vty *vty, char *, char *, char *); + +int bgp_static_unset_vpnv4 (struct vty *, char *, char *, char *); + +int bgp_config_write_network (struct vty *, struct bgp *, afi_t, safi_t, int *); +int bgp_config_write_distance (struct vty *, struct bgp *); + +void bgp_aggregate_increment (struct bgp *, struct prefix *, struct bgp_info *, + afi_t, safi_t); +void bgp_aggregate_decrement (struct bgp *, struct prefix *, struct bgp_info *, + afi_t, safi_t); + +u_char bgp_distance_apply (struct prefix *, struct bgp_info *, struct bgp *); + +afi_t bgp_node_afi (struct vty *); +safi_t bgp_node_safi (struct vty *); |