Update netlink dependency.

vendor/github.com/vishvananda/netlink/rule_test.go

@@ -0,0 +1,70 @@
+// +build linux
+
+package netlink
+
+import (
+	"net"
+	"syscall"
+	"testing"
+)
+
+func TestRuleAddDel(t *testing.T) {
+	skipUnlessRoot(t)
+
+	srcNet := &net.IPNet{IP: net.IPv4(172, 16, 0, 1), Mask: net.CIDRMask(16, 32)}
+	dstNet := &net.IPNet{IP: net.IPv4(172, 16, 1, 1), Mask: net.CIDRMask(24, 32)}
+
+	rulesBegin, err := RuleList(syscall.AF_INET)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rule := NewRule()
+	rule.Table = syscall.RT_TABLE_MAIN
+	rule.Src = srcNet
+	rule.Dst = dstNet
+	rule.Priority = 5
+	rule.OifName = "lo"
+	rule.IifName = "lo"
+	if err := RuleAdd(rule); err != nil {
+		t.Fatal(err)
+	}
+
+	rules, err := RuleList(syscall.AF_INET)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(rules) != len(rulesBegin)+1 {
+		t.Fatal("Rule not added properly")
+	}
+
+	// find this rule
+	var found bool
+	for i := range rules {
+		if rules[i].Table == rule.Table &&
+			rules[i].Src != nil && rules[i].Src.String() == srcNet.String() &&
+			rules[i].Dst != nil && rules[i].Dst.String() == dstNet.String() &&
+			rules[i].OifName == rule.OifName &&
+			rules[i].Priority == rule.Priority &&
+			rules[i].IifName == rule.IifName {
+			found = true
+		}
+	}
+	if !found {
+		t.Fatal("Rule has diffrent options than one added")
+	}
+
+	if err := RuleDel(rule); err != nil {
+		t.Fatal(err)
+	}
+
+	rulesEnd, err := RuleList(syscall.AF_INET)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(rulesEnd) != len(rulesBegin) {
+		t.Fatal("Rule not removed properly")
+	}
+}