Author: adrian.chadd
Date: Tue Feb 24 08:43:14 2009
New Revision: 13862
Modified:
playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.c
playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.h
Log:
Add a function to mark a route as "historical".
Modified: playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.c
==============================================================================
--- playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.c (original)
+++ playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.c Tue Feb 24 08:43:14 2009
@@ -79,6 +79,28 @@
return a->origin_as;
}
+int
+bgp_rib_mark_historical(bgp_rib_head_t *head, struct in_addr addr, int
masklen)
+{
+ prefix_t * p;
+ radix_node_t *n;
+ bgp_rib_aspath_t *a;
+
+ p = New_Prefix(AF_INET, &addr, masklen, NULL);
+
+ n = radix_search_best(head->rh, p);
+ if (n == NULL) {
+ debug(85, 3) ("bgp_rib_mark_historical: %s/%d: no match\n",
inet_ntoa(addr), masklen);
+ Deref_Prefix(p);
+ return -1;
+ }
+ debug(85, 3) ("bgp_rib_mark_historical: %s/%d: match; AS %d\n",
inet_ntoa(addr), masklen, bgp_rib_getasn(n->data));
+ Deref_Prefix(p);
+ a = n->data;
+ a->flags.hist = 1;
+ return 1;
+}
+
/* initialize the radix tree structure */
extern int squid_max_keylen; /* yuck.. this is in lib/radix.c */
Modified: playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.h
==============================================================================
--- playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.h (original)
+++ playpen/LUSCA_HEAD_bgp/libsqbgp/bgp_rib.h Tue Feb 24 08:43:14 2009
@@ -11,6 +11,9 @@
struct _bgp_rib_aspath {
u_short origin_as;
u_short rib_genid;
+ struct {
+ u_short hist; /* Is this route entry
"historical" for the current
generation? */
+ } flags;
};
typedef struct _bgp_rib_aspath bgp_rib_aspath_t;
@@ -18,6 +21,7 @@
extern int bgp_rib_match_net(bgp_rib_head_t *head, struct in_addr addr,
int masklen);
extern int bgp_rib_add_net(bgp_rib_head_t *head, struct in_addr addr, int
masklen, u_short origin_as);
extern int bgp_rib_del_net(bgp_rib_head_t *head, struct in_addr addr, int
masklen);
+extern int bgp_rib_mark_historical(bgp_rib_head_t *head, struct in_addr
addr, int masklen);
extern void bgp_rib_init(bgp_rib_head_t *head);
extern void bgp_rib_destroy(bgp_rib_head_t *head);
extern void bgp_rib_clean(bgp_rib_head_t *head);
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