lib/osutil: Only announce address of interfaces which are up (fixes #7458) (#8422)

2022-07-07 19:19:29 +02:00
parent 8facaf5a6a
commit 7cb8af9029
1 changed files with 12 additions and 1 deletions
@@ -11,10 +11,21 @@ import (
 )

 func GetLans() ([]*net.IPNet, error) {
-	addrs, err := net.InterfaceAddrs()
+	ifs, err := net.Interfaces()
 	if err != nil {
 		return nil, err
 	}
+	addrs := []net.Addr{}
+	for _, currentIf := range ifs {
+		if currentIf.Flags&net.FlagUp != net.FlagUp {
+			continue
+		}
+		currentAddrs, err := currentIf.Addrs()
+		if err != nil {
+			return nil, err
+		}
+		addrs = append(addrs, currentAddrs...)
+	}

 	nets := make([]*net.IPNet, 0, len(addrs))