X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fbgp_client.rs;h=ed07bdc46989c4257311aed443319317da37be25;hb=c49b9c568cbde2bb7d24726deaa66da11a9d8aab;hp=a96de047731edc1bf0e958e61394e66d248f4a6a;hpb=57f9c962892481512eb472bdfcdf3d967b6da157;p=dnsseed-rust

diff --git a/src/bgp_client.rs b/src/bgp_client.rs
index a96de04..ed07bdc 100644
--- a/src/bgp_client.rs
+++ b/src/bgp_client.rs
@@ -20,7 +20,7 @@ use tokio::timer::Delay;
 
 use futures::sync::mpsc;
 
-use crate::printer::Printer;
+use crate::printer::{Printer, Stat};
 
 struct Route {
 	path: Vec<u32>,
@@ -176,13 +176,24 @@ pub struct BGPClient {
 impl BGPClient {
 	pub fn get_asn(&self, addr: IpAddr) -> u32 {
 		let mut path_vecs = self.routes.lock().unwrap().get_route_attrs(addr).clone();
+		if path_vecs.is_empty() { return 0; }
+
 		path_vecs.sort_unstable_by(|path_a, path_b| {
 			path_a.pref.cmp(&path_b.pref)
 				.then(path_b.path.len().cmp(&path_a.path.len()))
 				.then(path_b.med.cmp(&path_a.med))
 		});
-		// TODO: Find last common ASN among all paths
-		*path_vecs.first().map(|route| route.path.last().unwrap_or(&0)).unwrap_or(&0)
+
+		let primary_route = path_vecs.pop().unwrap();
+		'asn_candidates: for asn in primary_route.path.iter().rev() {
+			for secondary_route in path_vecs.iter() {
+				if !secondary_route.path.contains(asn) {
+					continue 'asn_candidates;
+				}
+			}
+			return *asn;
+		}
+		*primary_route.path.last().unwrap_or(&0)
 	}
 
 	pub fn disconnect(&self) {
@@ -276,6 +287,8 @@ impl BGPClient {
 									route_table.announce(r, Arc::clone(&path_arc));
 								}
 							}
+							printer.set_stat(Stat::V4RoutingTableSize(route_table.v4_table.len()));
+							printer.set_stat(Stat::V6RoutingTableSize(route_table.v6_table.len()));
 						},
 						_ => {}
 					}