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Annotation of embedaddon/bird2/proto/static/static.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  *     BIRD -- Static Route Generator
        !             3:  *
        !             4:  *     (c) 1998--2000 Martin Mares <mj@ucw.cz>
        !             5:  *
        !             6:  *     Can be freely distributed and used under the terms of the GNU GPL.
        !             7:  */
        !             8: 
        !             9: #ifndef _BIRD_STATIC_H_
        !            10: #define _BIRD_STATIC_H_
        !            11: 
        !            12: #include "nest/route.h"
        !            13: #include "nest/bfd.h"
        !            14: #include "lib/buffer.h"
        !            15: 
        !            16: struct static_config {
        !            17:   struct proto_config c;
        !            18:   list routes;                         /* List of static routes (struct static_route) */
        !            19:   int check_link;                      /* Whether iface link state is used */
        !            20:   struct rtable_config *igp_table_ip4; /* Table for recursive IPv4 next hop lookups */
        !            21:   struct rtable_config *igp_table_ip6; /* Table for recursive IPv6 next hop lookups */
        !            22: };
        !            23: 
        !            24: struct static_proto {
        !            25:   struct proto p;
        !            26: 
        !            27:   struct event *event;                 /* Event for announcing updated routes */
        !            28:   BUFFER_(struct static_route *) marked; /* Routes marked for reannouncement */
        !            29:   rtable *igp_table_ip4;               /* Table for recursive IPv4 next hop lookups */
        !            30:   rtable *igp_table_ip6;               /* Table for recursive IPv6 next hop lookups */
        !            31: };
        !            32: 
        !            33: struct static_route {
        !            34:   node n;
        !            35:   net_addr *net;                       /* Network we route */
        !            36:   ip_addr via;                         /* Destination router */
        !            37:   struct iface *iface;                 /* Destination iface, for link-local vias or device routes */
        !            38:   struct neighbor *neigh;              /* Associated neighbor entry */
        !            39:   struct static_route *chain;          /* Next for the same neighbor */
        !            40:   struct static_route *mp_head;                /* First nexthop of this route */
        !            41:   struct static_route *mp_next;                /* Nexthops for multipath routes */
        !            42:   struct f_line *cmds;                 /* List of commands for setting attributes */
        !            43:   byte dest;                           /* Destination type (RTD_*) */
        !            44:   byte state;                          /* State of route announcement (SRS_*) */
        !            45:   byte active;                         /* Next hop is active (nbr/iface/BFD available) */
        !            46:   byte onlink;                         /* Gateway is onlink regardless of IP ranges */
        !            47:   byte weight;                         /* Multipath next hop weight */
        !            48:   byte use_bfd;                                /* Configured to use BFD */
        !            49:   struct bfd_request *bfd_req;         /* BFD request, if BFD is used */
        !            50:   mpls_label_stack *mls;               /* MPLS label stack; may be NULL */
        !            51: };
        !            52: 
        !            53: /*
        !            54:  * Note that data fields neigh, chain, state, active and bfd_req are runtime
        !            55:  * data, not real configuration data. Must be handled carefully.
        !            56:  *
        !            57:  * Regular (i.e. dest == RTD_UNICAST) routes use static_route structure for
        !            58:  * additional next hops (fields mp_head, mp_next). Note that 'state' is for
        !            59:  * whole route, while 'active' is for each next hop. Also note that fields
        !            60:  * mp_head, mp_next, active are zero for other kinds of routes.
        !            61:  */
        !            62: 
        !            63: #define RTDX_RECURSIVE 0x7f            /* Phony dest value for recursive routes */
        !            64: 
        !            65: #define SRS_DOWN       0               /* Route is not announced */
        !            66: #define SRS_CLEAN      1               /* Route is active and announced */
        !            67: #define SRS_DIRTY      2               /* Route changed since announcement */
        !            68: 
        !            69: void static_show(struct proto *);
        !            70: 
        !            71: #endif