bgp_advertise.h
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上传日期:2009-11-15
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- /* BGP advertisement and adjacency
- Copyright (C) 1996, 97, 98, 99, 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. */
- /* BGP advertise FIFO. */
- struct bgp_advertise_fifo
- {
- struct bgp_advertise *next;
- struct bgp_advertise *prev;
- };
- /* BGP advertise attribute. */
- struct bgp_advertise_attr
- {
- /* Head of advertisement pointer. */
- struct bgp_advertise *adv;
- /* Reference counter. */
- unsigned long refcnt;
- /* Attribute pointer to be announced. */
- struct attr *attr;
- };
- struct bgp_advertise
- {
- /* FIFO for advertisement. */
- struct bgp_advertise_fifo fifo;
- /* Link list for same attribute advertise. */
- struct bgp_advertise *next;
- struct bgp_advertise *prev;
- /* Prefix information. */
- struct bgp_node *rn;
- /* Reference pointer. */
- struct bgp_adj_out *adj;
- /* Advertisement attribute. */
- struct bgp_advertise_attr *baa;
- /* BGP info. */
- struct bgp_info *binfo;
- };
- /* BGP adjacency out. */
- struct bgp_adj_out
- {
- /* Lined list pointer. */
- struct bgp_adj_out *next;
- struct bgp_adj_out *prev;
- /* Advertised peer. */
- struct peer *peer;
- /* Advertised attribute. */
- struct attr *attr;
- /* Advertisement information. */
- struct bgp_advertise *adv;
- };
- /* BGP adjacency in. */
- struct bgp_adj_in
- {
- /* Linked list pointer. */
- struct bgp_adj_in *next;
- struct bgp_adj_in *prev;
- /* Received peer. */
- struct peer *peer;
- /* Received attribute. */
- struct attr *attr;
- };
- /* BGP advertisement list. */
- struct bgp_synchronize
- {
- struct bgp_advertise_fifo update;
- struct bgp_advertise_fifo withdraw;
- struct bgp_advertise_fifo withdraw_low;
- };
- /* BGP adjacency linked list. */
- #define BGP_INFO_ADD(N,A,TYPE)
- do {
- (A)->prev = NULL;
- (A)->next = (N)->TYPE;
- if ((N)->TYPE)
- (N)->TYPE->prev = (A);
- (N)->TYPE = (A);
- } while (0)
- #define BGP_INFO_DEL(N,A,TYPE)
- do {
- if ((A)->next)
- (A)->next->prev = (A)->prev;
- if ((A)->prev)
- (A)->prev->next = (A)->next;
- else
- (N)->TYPE = (A)->next;
- } while (0)
- #define BGP_ADJ_IN_ADD(N,A) BGP_INFO_ADD(N,A,adj_in)
- #define BGP_ADJ_IN_DEL(N,A) BGP_INFO_DEL(N,A,adj_in)
- #define BGP_ADJ_OUT_ADD(N,A) BGP_INFO_ADD(N,A,adj_out)
- #define BGP_ADJ_OUT_DEL(N,A) BGP_INFO_DEL(N,A,adj_out)
- /* Prototypes. */
- void bgp_adj_out_set (struct bgp_node *, struct peer *, struct prefix *,
- struct attr *, afi_t, safi_t, struct bgp_info *);
- void bgp_adj_out_unset (struct bgp_node *, struct peer *, struct prefix *,
- afi_t, safi_t);
- void bgp_adj_out_remove (struct bgp_node *, struct bgp_adj_out *,
- struct peer *, afi_t, safi_t);
- int bgp_adj_out_lookup (struct peer *, struct prefix *, afi_t, safi_t,
- struct bgp_node *);
- void bgp_adj_in_set (struct bgp_node *, struct peer *, struct attr *);
- void bgp_adj_in_unset (struct bgp_node *, struct peer *);
- void bgp_adj_in_remove (struct bgp_node *, struct bgp_adj_in *);
- struct bgp_advertise *
- bgp_advertise_clean (struct peer *, struct bgp_adj_out *, afi_t, safi_t);
- void bgp_sync_init (struct peer *);
- void bgp_sync_delete (struct peer *);