feat(netlink): debug rule logs contain the ip family

internal/netlink/rule.go

@@ -77,7 +77,18 @@ func netlinkRuleToRule(netlinkRule netlink.Rule) (rule Rule) {
 }
 
 func ruleDbgMsg(add bool, rule Rule) (debugMessage string) {
-	debugMessage = "ip rule"
+	debugMessage = "ip"
+
+	switch rule.Family {
+	case FamilyV4:
+		debugMessage += " -f inet"
+	case FamilyV6:
+		debugMessage += " -f inet6"
+	default:
+		debugMessage += " -f " + fmt.Sprint(rule.Family)
+	}
+
+	debugMessage += " rule"
 
 	if add {
 		debugMessage += " add"

internal/netlink/rule_test.go

@@ -15,26 +15,28 @@ func Test_ruleDbgMsg(t *testing.T) {
 		dbgMsg string
 	}{
 		"default values": {
-			dbgMsg: "ip rule del pref 0",
+			dbgMsg: "ip -f 0 rule del pref 0",
 		},
 		"add rule": {
 			add: true,
 			rule: Rule{
+				Family:   FamilyV4,
 				Src:      makeNetipPrefix(1),
 				Dst:      makeNetipPrefix(2),
 				Table:    100,
 				Priority: 101,
 			},
-			dbgMsg: "ip rule add from 1.1.1.0/24 to 2.2.2.0/24 lookup 100 pref 101",
+			dbgMsg: "ip -f inet rule add from 1.1.1.0/24 to 2.2.2.0/24 lookup 100 pref 101",
 		},
 		"del rule": {
 			rule: Rule{
+				Family:   FamilyV4,
 				Src:      makeNetipPrefix(1),
 				Dst:      makeNetipPrefix(2),
 				Table:    100,
 				Priority: 101,
 			},
-			dbgMsg: "ip rule del from 1.1.1.0/24 to 2.2.2.0/24 lookup 100 pref 101",
+			dbgMsg: "ip -f inet rule del from 1.1.1.0/24 to 2.2.2.0/24 lookup 100 pref 101",
 		},
 	}