lib: enforce vrf_name_to_id by returning default_vrf when name is null

[mirror_frr.git] / bgpd / bgp_attr_evpn.c

diff --git a/bgpd/bgp_attr_evpn.c b/bgpd/bgp_attr_evpn.c
index 14ff01ada54c09eb56466857557959c30f71d90d..88e520fdc508c24de4fdd1014124cd9cf3dee105 100644 (file)
--- a/bgpd/bgp_attr_evpn.c
+++ b/bgpd/bgp_attr_evpn.c
@@ -210,6 +210,39 @@ uint32_t bgp_attr_mac_mobility_seqnum(struct attr *attr, uint8_t *sticky)
        return 0;
 }
 
+/*
+ * return true if attr contains router flag extended community
+ */
+void bgp_attr_evpn_na_flag(struct attr *attr, uint8_t *router_flag)
+{
+       struct ecommunity *ecom;
+       int i;
+       uint8_t val;
+
+       ecom = attr->ecommunity;
+       if (!ecom || !ecom->size)
+               return;
+
+       /* If there is a evpn na extendd community set router_flag */
+       for (i = 0; i < ecom->size; i++) {
+               uint8_t *pnt;
+               uint8_t type, sub_type;
+
+               pnt = (ecom->val + (i * ECOMMUNITY_SIZE));
+               type = *pnt++;
+               sub_type = *pnt++;
+
+               if (type == ECOMMUNITY_ENCODE_EVPN &&
+                   sub_type == ECOMMUNITY_EVPN_SUBTYPE_ND) {
+                       val = *pnt++;
+                       if (val & ECOMMUNITY_EVPN_SUBTYPE_ND_ROUTER_FLAG) {
+                               *router_flag = 1;
+                               break;
+                       }
+               }
+       }
+}
+
 /* dst prefix must be AF_INET or AF_INET6 prefix, to forge EVPN prefix */
 extern int bgp_build_evpn_prefix(int evpn_type, uint32_t eth_tag,
                                 struct prefix *dst)