Changed semantics of the rt_update hook. The attribute list we pass now

contains all attributes, not just the temporary ones. This avoids having
to merge the lists inside protocols or doing searches on both of them.

Also, do filtering of routes properly. (I'd like to avoid it, but it's
needed at least in the krt protocol.)

1 files changed, 17 insertions, 5 deletions

diff --git a/nest/rt-table.c b/nest/rt-table.c
index d1594b32..cfaa8937 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -123,10 +123,10 @@ do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list *
   struct proto *p = a->proto;
   rte *new0 = new;
   rte *old0 = old;
+  int ok;
 
   if (new)
     {
-      int ok;
       if ((class & IADDR_SCOPE_MASK) < p->min_scope)
 	{
 	  rte_trace_out(D_FILTERS, p, new, "out of scope");
@@ -148,13 +148,13 @@ do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list *
     }
   if (old && p->out_filter)
     {
-      /* FIXME: Do we really need to filter old routes? */
       if (p->out_filter == FILTER_REJECT)
 	old = NULL;
       else
 	{
 	  ea_list *tmpb = p->make_tmp_attrs ? p->make_tmp_attrs(old, rte_update_pool) : NULL;
-	  if (f_run(p->out_filter, &old, &tmpb, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT)
+	  ok = p->import_control ? p->import_control(p, &old, &tmpb, rte_update_pool) : 0;
+	  if (ok < 0 || (!ok && f_run(p->out_filter, &old, &tmpb, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
 	    old = NULL;
 	}
     }
@@ -167,8 +167,20 @@ do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list *
       else if (old)
 	rte_trace_out(D_ROUTES, p, old, "removed");
     }
-  if (new || old)
-    p->rt_notify(p, net, new, old, tmpa);
+  if (!new && !old)
+    return;
+  if (!new)
+    p->rt_notify(p, net, NULL, old, NULL);
+  else if (tmpa)
+    {
+      while (tmpa->next)
+	tmpa = tmpa->next;
+      tmpa->next = new->attrs->eattrs;
+      p->rt_notify(p, net, new, old, tmpa);
+      tmpa->next = NULL;
+    }
+  else
+    p->rt_notify(p, net, new, old, new->attrs->eattrs);
   if (new && new != new0)	/* Discard temporary rte's */
     rte_free(new);
   if (old && old != old0)