From c0668f36967ce651e452a476b786b7604038a556 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Mon, 17 Apr 2000 07:53:29 +0000
Subject: Created nest/a-path.c and a-set.c which should contain general
 operations on AS paths and community sets.

Moved as_path_prepend() there.

Pavel, please move the other functions as well.
---
 proto/bgp/attrs.c | 26 +-------------------------
 proto/bgp/bgp.h   |  1 -
 2 files changed, 1 insertion(+), 26 deletions(-)

(limited to 'proto/bgp')

diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c
index dc74770..6d4fd9c 100644
--- a/proto/bgp/attrs.c
+++ b/proto/bgp/attrs.c
@@ -12,6 +12,7 @@
 #include "nest/iface.h"
 #include "nest/protocol.h"
 #include "nest/route.h"
+#include "nest/attrs.h"
 #include "conf/conf.h"
 #include "lib/resource.h"
 #include "lib/string.h"
@@ -278,31 +279,6 @@ bgp_create_attrs(struct bgp_proto *p, rte *e, ea_list **attrs, struct linpool *p
   return 0;				/* Leave decision to the filters */
 }
 
-struct adata *
-as_path_prepend(struct linpool *pool, struct adata *olda, int as)
-{
-  struct adata *newa;
-
-  if (olda->length && olda->data[0] == 2 && olda->data[1] < 255) /* Starting with sequence => just prepend the AS number */
-    {
-      newa = lp_alloc(pool, sizeof(struct adata) + olda->length + 2);
-      newa->length = olda->length + 2;
-      newa->data[0] = 2;
-      newa->data[1] = olda->data[1] + 1;
-      memcpy(newa->data+4, olda->data+2, olda->length-2);
-    }
-  else					/* Create new path segment */
-    {
-      newa = lp_alloc(pool, sizeof(struct adata) + olda->length + 4);
-      newa->length = olda->length + 4;
-      newa->data[0] = 2;
-      newa->data[1] = 1;
-      memcpy(newa->data+4, olda->data, olda->length);
-    }
-  put_u16(newa->data+2, as);
-  return newa;
-}
-
 static ea_list *
 bgp_path_prepend(struct linpool *pool, eattr *a, ea_list *old, int as)
 {
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h
index d0d2523..9ee5b41 100644
--- a/proto/bgp/bgp.h
+++ b/proto/bgp/bgp.h
@@ -96,7 +96,6 @@ int bgp_get_attr(struct eattr *e, byte *buf);
 int bgp_rte_better(struct rte *, struct rte *);
 void bgp_rt_notify(struct proto *, struct network *, struct rte *, struct rte *, struct ea_list *);
 int bgp_import_control(struct proto *, struct rte **, struct ea_list **, struct linpool *);
-struct adata *as_path_prepend(struct linpool *pool, struct adata *olda, int as);
 void bgp_attr_init(struct bgp_proto *);
 
 /* packets.c */
-- 
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