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authorOndrej Filip <feela@network.cz>2004-06-06 18:00:09 +0200
committerOndrej Filip <feela@network.cz>2004-06-06 18:00:09 +0200
commitb8f17cf1923ff5894b6689479f7fb7d008b8ce44 (patch)
tree1292dfde38521bcc67a623054f386e4d1b927796 /proto/ospf/rt.c
parentd631698ec8a63270f7ca9bc069508d1313a08f92 (diff)
downloadbird-b8f17cf1923ff5894b6689479f7fb7d008b8ce44.tar
bird-b8f17cf1923ff5894b6689479f7fb7d008b8ce44.zip
Small cleanup, indentation and preparation for multiple areas routing table calculation.
Diffstat (limited to 'proto/ospf/rt.c')
-rw-r--r--proto/ospf/rt.c36
1 files changed, 27 insertions, 9 deletions
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index f7453bd..cbd53f6 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -1,12 +1,18 @@
/*
* BIRD -- OSPF
*
- * (c) 2000 Ondrej Filip <feela@network.cz>
+ * (c) 2000--2004 Ondrej Filip <feela@network.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "ospf.h"
+static void add_cand(list * l, struct top_hash_entry *en,
+ struct top_hash_entry *par, u16 dist,
+ struct ospf_area *oa);
+static void calc_next_hop(struct top_hash_entry *en,
+ struct top_hash_entry *par, struct ospf_area *oa);
+static void ospf_ext_spfa(struct proto_ospf *po);
void
init_infib(struct fib_node *fn)
@@ -34,14 +40,14 @@ init_efib(struct fib_node *fn)
}
/**
- * ospf_rt_spfa - calculate internal routes
- * @oa: OSPF area
+ * ospf_rt_spf - calculate internal routes
+ * @po: OSPF protocol
*
* Calculation of internal paths in an area is described in 16.1 of RFC 2328.
* It's based on Dijkstra's shortest path tree algorithms.
* RFC recommends to add ASBR routers into routing table. I don't do this
* and latter parts of routing table calculation look directly into LSA
- * Database. This function is invoked from area_disp().
+ * Database. This function is invoked from ospf_disp().
*/
void
ospf_rt_spfa(struct ospf_area *oa)
@@ -270,6 +276,18 @@ skip:
ospf_ext_spfa(po);
}
+
+void
+ospf_rt_spf(struct proto_ospf *po)
+{
+ struct ospf_area *oa;
+ WALK_LIST(oa, po->area_list)
+ {
+ ospf_rt_spfa(oa);
+ }
+}
+
+
/**
* ospf_ext_spfa - calculate external paths
* @po: protocol
@@ -278,7 +296,7 @@ skip:
* path is invoked. This process is described in 16.6 of RFC 2328.
* Inter- and Intra-area paths are always prefered over externals.
*/
-void
+static void
ospf_ext_spfa(struct proto_ospf *po) /* FIXME looking into inter-area */
{
struct top_hash_entry *en, *etmp, *absr;
@@ -552,7 +570,7 @@ noch:
}
/* Add LSA into list of candidates in Dijkstra's algorithm */
-void
+static void
add_cand(list * l, struct top_hash_entry *en, struct top_hash_entry *par,
u16 dist, struct ospf_area *oa)
{
@@ -625,7 +643,7 @@ add_cand(list * l, struct top_hash_entry *en, struct top_hash_entry *par,
/* FIXME Some VLINK stuff should be here */
}
-void
+static void
calc_next_hop(struct top_hash_entry *en, struct top_hash_entry *par,
struct ospf_area *oa)
{
@@ -649,8 +667,8 @@ calc_next_hop(struct top_hash_entry *en, struct top_hash_entry *par,
if (en->lsa.rt == myrid)
{
WALK_LIST(ifa, po->iface_list)
- if (ipa_compare(ifa->iface->addr->ip, ipa_from_u32(en->lsa.id)) ==
- 0)
+ if (ipa_compare
+ (ifa->iface->addr->ip, ipa_from_u32(en->lsa.id)) == 0)
{
en->nhi = ifa->iface;
return;