fixing some typos and found one conversion bug

1 files changed, 17 insertions, 0 deletions

diff --git a/config/default_linux.go b/config/default_linux.go
index f83b76fe..8cfcc501 100644
--- a/config/default_linux.go
+++ b/config/default_linux.go
@@ -53,3 +53,20 @@ func GetIPv6LinkLocalNeighborAddress(ifname string) (string, error) {
 
 	return fmt.Sprintf("%s%%%s", addr, ifname), nil
 }
+
+func isLocalLinkLocalAddress(ifindex int, addr net.IP) (bool, error) {
+	ifi, err := net.InterfaceByIndex(ifindex)
+	if err != nil {
+		return false, err
+	}
+	addrs, err := ifi.Addrs()
+	if err != nil {
+		return false, err
+	}
+	for _, a := range addrs {
+		if ip, _, _ := net.ParseCIDR(a.String()); addr.Equal(ip) {
+			return true, nil
+		}
+	}
+	return false, nil
+}