Initial revision

1 files changed, 125 insertions, 0 deletions

diff --git a/bgpd/bgp_attr.h b/bgpd/bgp_attr.h
new file mode 100644
index 00000000..9c5bf879
--- /dev/null
+++ b/bgpd/bgp_attr.h
@@ -0,0 +1,125 @@
+/* BGP attributes. 
+   Copyright (C) 1996, 97, 98 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.  */
+
+/* Simple bit mapping. */
+#define BITMAP_NBBY 8
+
+#define SET_BITMAP(MAP, NUM) \
+        SET_FLAG (MAP[(NUM) / BITMAP_NBBY], 1 << ((NUM) % BITMAP_NBBY))
+
+#define CHECK_BITMAP(MAP, NUM) \
+        CHECK_FLAG (MAP[(NUM) / BITMAP_NBBY], 1 << ((NUM) % BITMAP_NBBY))
+
+/* BGP Attribute type range. */
+#define BGP_ATTR_TYPE_RANGE     256
+#define BGP_ATTR_BITMAP_SIZE    (BGP_ATTR_TYPE_RANGE / BITMAP_NBBY)
+
+/* BGP Attribute flags. */
+#define BGP_ATTR_FLAG_OPTIONAL  0x80	/* Attribute is optional. */
+#define BGP_ATTR_FLAG_TRANS     0x40	/* Attribute is transitive. */
+#define BGP_ATTR_FLAG_PARTIAL   0x20	/* Attribute is partial. */
+#define BGP_ATTR_FLAG_EXTLEN    0x10	/* Extended length flag. */
+
+/* BGP attribute header must bigger than 2. */
+#define BGP_ATTR_MIN_LEN        2       /* Attribute flag and type. */
+
+/* BGP attribute structure. */
+struct attr
+{
+  /* Reference count of this attribute. */
+  unsigned long refcnt;
+
+  /* Flag of attribute is set or not. */
+  u_int32_t flag;
+
+  /* Attributes. */
+  u_char origin;
+  struct in_addr nexthop;
+  u_int32_t med;
+  u_int32_t local_pref;
+  as_t aggregator_as;
+  struct in_addr aggregator_addr;
+  u_int32_t weight;
+  struct in_addr originator_id;
+  struct cluster_list *cluster;
+
+  u_char mp_nexthop_len;
+#ifdef HAVE_IPV6
+  struct in6_addr mp_nexthop_global;
+  struct in6_addr mp_nexthop_local;
+#endif /* HAVE_IPV6 */
+  struct in_addr mp_nexthop_global_in;
+  struct in_addr mp_nexthop_local_in;
+
+  /* AS Path structure */
+  struct aspath *aspath;
+
+  /* Community structure */
+  struct community *community;	
+
+  /* Extended Communities attribute. */
+  struct ecommunity *ecommunity;
+
+  /* Unknown transitive attribute. */
+  struct transit *transit;
+};
+
+/* Router Reflector related structure. */
+struct cluster_list
+{
+  unsigned long refcnt;
+  int length;
+  struct in_addr *list;
+};
+
+/* Unknown transit attribute. */
+struct transit
+{
+  unsigned long refcnt;
+  int length;
+  u_char *val;
+};
+
+#define ATTR_FLAG_BIT(X)  (1 << ((X) - 1))
+
+/* Prototypes. */
+void bgp_attr_init ();
+int bgp_attr_parse (struct peer *, struct attr *, bgp_size_t,
+		    struct bgp_nlri *, struct bgp_nlri *);
+int bgp_attr_check (struct peer *, struct attr *);
+struct attr *bgp_attr_intern (struct attr *attr);
+void bgp_attr_unintern (struct attr *);
+void bgp_attr_flush (struct attr *);
+struct attr *bgp_attr_default_set (struct attr *attr, u_char);
+struct attr *bgp_attr_default_intern (u_char);
+struct attr *bgp_attr_aggregate_intern (struct bgp *, u_char, struct aspath *, struct community *, int as_set);
+bgp_size_t bgp_packet_attribute (struct bgp *bgp, struct peer *, struct stream *, struct attr *, struct prefix *, afi_t, safi_t, struct peer *, struct prefix_rd *, u_char *);
+bgp_size_t bgp_packet_withdraw (struct peer *peer, struct stream *s, struct prefix *p, afi_t, safi_t, struct prefix_rd *, u_char *);
+void bgp_dump_routes_attr (struct stream *, struct attr *);
+unsigned int attrhash_key_make (struct attr *);
+int attrhash_cmp (struct attr *, struct attr *);
+void attr_show_all (struct vty *);
+
+/* Cluster list prototypes. */
+int cluster_loop_check (struct cluster_list *, struct in_addr);
+void cluster_unintern (struct cluster_list *);
+
+/* Transit attribute prototypes. */
+void transit_unintern (struct transit *);