[quagga-dev 16421] [PATCH v3 5/5] bgpd: vpnv4 af exports extended communities

Philippe Guibert philippe.guibert at 6wind.com
Fri Dec 2 15:55:06 GMT 2016


If the user preconfigures a vrf with import and export rules, before
creating a new network on vpnv4 address, then BGP update emitted will
contain the exported rts mentioned by the vrf export rule.

Signed-off-by: Philippe Guibert <philippe.guibert at 6wind.com>
---
 bgpd/bgp_route.c | 11 +++++++++++
 bgpd/bgp_route.h |  2 ++
 2 files changed, 13 insertions(+)

diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c
index c4236fab481b..1d7533c49aad 100644
--- a/bgpd/bgp_route.c
+++ b/bgpd/bgp_route.c
@@ -3964,6 +3964,11 @@ bgp_static_update_safi (struct bgp *bgp, struct prefix *p,
   attr.med = bgp_static->igpmetric;
   attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_MULTI_EXIT_DISC);
 
+  if (bgp_static->ecomm)
+    {
+      bgp_attr_extra_get (&attr)->ecommunity = ecommunity_dup (bgp_static->ecomm);
+      attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_EXT_COMMUNITIES);
+    }
   /* Apply route-map. */
   if (bgp_static->rmap.name)
     {
@@ -4264,6 +4269,7 @@ bgp_static_set_safi (safi_t safi, struct vty *vty, const char *ip_str,
   struct bgp_node *rn;
   struct bgp_table *table;
   struct bgp_static *bgp_static;
+  struct bgp_vrf *vrf;
   u_char tag[3];
 
   bgp = vty->index;
@@ -4314,6 +4320,11 @@ bgp_static_set_safi (safi_t safi, struct vty *vty, const char *ip_str,
       bgp_static->igpmetric = 0;
       bgp_static->igpnexthop.s_addr = 0;
       memcpy(bgp_static->tag, tag, 3);
+      vrf = bgp_vrf_lookup(bgp, &prd);
+      if (vrf)
+        {
+          bgp_static->ecomm = vrf->rt_export;
+        }
       bgp_static->prd = prd;
 
       if (rmap_str)
diff --git a/bgpd/bgp_route.h b/bgpd/bgp_route.h
index 25a42e87bd94..642839d6d59f 100644
--- a/bgpd/bgp_route.h
+++ b/bgpd/bgp_route.h
@@ -137,6 +137,8 @@ struct bgp_static
   /* Route Distinguisher */
   struct prefix_rd     prd;
 
+  struct ecommunity	*ecomm;
+
   /* MPLS label.  */
   u_char tag[3];
 };
-- 
2.1.4





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