Fixes bug in pipe route filtering.

Routes comming through pipe from primary to secondary table were
filtered by both EXPORT and IMPORT filters, but they should be
only filtered by EXPORT filters.

1 files changed, 11 insertions, 3 deletions

diff --git a/nest/rt-table.c b/nest/rt-table.c
index 2af3430..3fa5267 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -483,22 +483,30 @@ rte_update(rtable *table, net *net, struct proto *p, rte *new)
   rte_update_lock();
   if (new)
     {
+      struct filter *filter = p->in_filter;
+
+	/* Do not filter routes going to the secondary side of the pipe, 
+	   that should only go through export filter.
+	   FIXME Make a better check whether p is really a pipe. */
+      if (p->table != table)
+	filter = FILTER_ACCEPT;
+
       if (!rte_validate(new))
 	{
 	  rte_trace_in(D_FILTERS, p, new, "invalid");
 	  goto drop;
 	}
-      if (p->in_filter == FILTER_REJECT)
+      if (filter == FILTER_REJECT)
 	{
 	  rte_trace_in(D_FILTERS, p, new, "filtered out");
 	  goto drop;
 	}
       if (p->make_tmp_attrs)
 	tmpa = p->make_tmp_attrs(new, rte_update_pool);
-      if (p->in_filter)
+      if (filter)
 	{
 	  ea_list *old_tmpa = tmpa;
-	  int fr = f_run(p->in_filter, &new, &tmpa, rte_update_pool, 0);
+	  int fr = f_run(filter, &new, &tmpa, rte_update_pool, 0);
 	  if (fr > F_ACCEPT)
 	    {
 	      rte_trace_in(D_FILTERS, p, new, "filtered out");