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authorOndrej Zajicek (work) <santiago@crfreenet.org>2019-10-24 17:47:45 +0200
committerOndrej Zajicek (work) <santiago@crfreenet.org>2019-10-24 17:50:19 +0200
commitec331acf48535211fb5b50c87e74bf1c8370283a (patch)
treed6c774f48c4ba2e842a784b2b698e8d087b6d2f5 /proto/bgp
parent5ce881be82d6698c32e36add9ed6e1643150c3f3 (diff)
BGP: Fix handling of transitive extended communities
Transitive extended communities should be removed on external sessions, the old code them in all cases. Thanks to Jean-Daniel Pauget for the original patch.
Diffstat (limited to 'proto/bgp')
-rw-r--r--proto/bgp/attrs.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c
index b8921363..9a4e12d2 100644
--- a/proto/bgp/attrs.c
+++ b/proto/bgp/attrs.c
@@ -717,13 +717,23 @@ bgp_decode_mp_unreach_nlri(struct bgp_parse_state *s, uint code UNUSED, uint fla
static void
bgp_export_ext_community(struct bgp_export_state *s, eattr *a)
{
- struct adata *ad = ec_set_del_nontrans(s->pool, a->u.ptr);
+ if (!s->proto->is_interior)
+ {
+ struct adata *ad = ec_set_del_nontrans(s->pool, a->u.ptr);
- if (ad->length == 0)
- UNSET(a);
+ if (ad->length == 0)
+ UNSET(a);
- ec_set_sort_x(ad);
- a->u.ptr = ad;
+ ec_set_sort_x(ad);
+ a->u.ptr = ad;
+ }
+ else
+ {
+ if (a->u.ptr->length == 0)
+ UNSET(a);
+
+ a->u.ptr = ec_set_sort(s->pool, a->u.ptr);
+ }
}
static void