Fixes BGP IPv6 link local next hop handling.

When sending 'third party' BGP update, Bird used bogus link local
addresses instead of addresses it received before.

1 files changed, 5 insertions, 4 deletions

diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c
index 9a247dec..585bfd16 100644
--- a/proto/bgp/attrs.c
+++ b/proto/bgp/attrs.c
@@ -786,13 +786,13 @@ bgp_create_attrs(struct bgp_proto *p, rte *e, ea_list **attrs, struct linpool *p
 	put_u16(z+2, p->local_as);
     }
 
-  z = bgp_set_attr_wa(ea->attrs+2, pool, BA_NEXT_HOP, sizeof(ip_addr));
+  z = bgp_set_attr_wa(ea->attrs+2, pool, BA_NEXT_HOP, NEXT_HOP_LENGTH);
   if (p->cf->next_hop_self ||
       !p->is_internal ||
       rta->dest != RTD_ROUTER)
-    *(ip_addr *)z = p->source_addr;
+    set_next_hop(z, p->source_addr);
   else
-    *(ip_addr *)z = e->attrs->gw;
+    set_next_hop(z, e->attrs->gw);
 
   bgp_set_attr(ea->attrs+3, BA_LOCAL_PREF, 0);
 
@@ -862,7 +862,8 @@ bgp_update_attrs(struct bgp_proto *p, rte *e, ea_list **attrs, struct linpool *p
   else
     {
       /* Need to create new one */
-      bgp_attach_attr_ip(attrs, pool, BA_NEXT_HOP, p->source_addr);
+      byte *b = bgp_attach_attr_wa(attrs, pool, BA_NEXT_HOP, NEXT_HOP_LENGTH);
+      set_next_hop(b, p->source_addr);
     }
 
   if (rr)