BGP: implement Adj-RIB-Out

The patch implements optional internal export table to a channel and
hooks it to BGP so it can be used as Adj-RIB-Out. When enabled, all
exported (post-filtered) routes are stored there. An export table can be
examined using e.g. 'show route export table bgp1.ipv4'.

1 files changed, 4 insertions, 0 deletions

diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c
index c08e5ee9..01f61e81 100644
--- a/proto/bgp/bgp.c
+++ b/proto/bgp/bgp.c
@@ -1721,6 +1721,9 @@ bgp_channel_start(struct channel *C)
   if (c->cf->import_table)
     channel_setup_in_table(C);
 
+  if (c->cf->export_table)
+    channel_setup_out_table(C);
+
   c->stale_timer = tm_new_init(c->pool, bgp_long_lived_stale_timeout, c, 0, 0);
 
   c->next_hop_addr = c->cf->next_hop_addr;
@@ -2067,6 +2070,7 @@ bgp_channel_reconfigure(struct channel *C, struct channel_config *CC, int *impor
       (new->ext_next_hop != old->ext_next_hop) ||
       (new->add_path != old->add_path) ||
       (new->import_table != old->import_table) ||
+      (new->export_table != old->export_table) ||
       (IGP_TABLE(new, ip4) != IGP_TABLE(old, ip4)) ||
       (IGP_TABLE(new, ip6) != IGP_TABLE(old, ip6)))
     return 0;