/* * BIRD -- Static Route Generator * * (c) 1998--2000 Martin Mares <mj@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ #ifndef _BIRD_STATIC_H_ #define _BIRD_STATIC_H_ #include "nest/route.h" #include "nest/bfd.h" #include "lib/buffer.h" struct static_config { struct proto_config c; list routes; /* List of static routes (struct static_route) */ int check_link; /* Whether iface link state is used */ struct rtable_config *igp_table_ip4; /* Table for recursive IPv4 next hop lookups */ struct rtable_config *igp_table_ip6; /* Table for recursive IPv6 next hop lookups */ }; struct static_proto { struct proto p; struct event *event; /* Event for announcing updated routes */ BUFFER(struct static_route *) marked; /* Routes marked for reannouncement */ rtable *igp_table_ip4; /* Table for recursive IPv4 next hop lookups */ rtable *igp_table_ip6; /* Table for recursive IPv6 next hop lookups */ }; struct static_route { node n; net_addr *net; /* Network we route */ ip_addr via; /* Destination router */ struct iface *iface; /* Destination iface, for link-local vias or device routes */ struct neighbor *neigh; /* Associated neighbor entry */ struct static_route *chain; /* Next for the same neighbor */ struct static_route *mp_head; /* First nexthop of this route */ struct static_route *mp_next; /* Nexthops for multipath routes */ struct f_inst *cmds; /* List of commands for setting attributes */ byte dest; /* Destination type (RTD_*) */ byte state; /* State of route announcement (SRS_*) */ byte active; /* Next hop is active (nbr/iface/BFD available) */ byte onlink; /* Gateway is onlink regardless of IP ranges */ byte weight; /* Multipath next hop weight */ byte use_bfd; /* Configured to use BFD */ struct bfd_request *bfd_req; /* BFD request, if BFD is used */ mpls_label_stack *mls; /* MPLS label stack; may be NULL */ }; /* * Note that data fields neigh, chain, state, active and bfd_req are runtime * data, not real configuration data. Must be handled carefully. * * Regular (i.e. dest == RTD_UNICAST) routes use static_route structure for * additional next hops (fields mp_head, mp_next). Note that 'state' is for * whole route, while 'active' is for each next hop. Also note that fields * mp_head, mp_next, active are zero for other kinds of routes. */ #define RTDX_RECURSIVE 0x7f /* Phony dest value for recursive routes */ #define SRS_DOWN 0 /* Route is not announced */ #define SRS_CLEAN 1 /* Route is active and announced */ #define SRS_DIRTY 2 /* Route changed since announcement */ void static_show(struct proto *); #endif