Table ID property as int pointer

Signed-off-by: Lionel Jouin <lionel.jouin@est.tech>

pkg/types/types.go

@@ -170,26 +170,37 @@ type Route struct {
 	MTU      int
 	AdvMSS   int
 	Priority int
-	Table    int
+	Table    *int
 }
 
 func (r *Route) String() string {
-	return fmt.Sprintf("%+v", *r)
+	table := "<nil>"
+	if r.Table != nil {
+		table = fmt.Sprintf("%d", *r.Table)
+	}
+
+	return fmt.Sprintf("{Dst:%+v GW:%v MTU:%d AdvMSS:%d Priority:%d Table:%s}", r.Dst, r.GW, r.MTU, r.AdvMSS, r.Priority, table)
 }
 
 func (r *Route) Copy() *Route {
 	if r == nil {
 		return nil
 	}
 
-	return &Route{
+	route := &Route{
 		Dst:      r.Dst,
 		GW:       r.GW,
 		MTU:      r.MTU,
 		AdvMSS:   r.AdvMSS,
 		Priority: r.Priority,
-		Table:    r.Table,
 	}
+
+	if r.Table != nil {
+		table := *r.Table
+		route.Table = &table
+	}
+
+	return route
 }
 
 // Well known error codes
@@ -244,7 +255,7 @@ type route struct {
 	MTU      int    `json:"mtu,omitempty"`
 	AdvMSS   int    `json:"advmss,omitempty"`
 	Priority int    `json:"priority,omitempty"`
-	Table    int    `json:"table,omitempty"`
+	Table    *int   `json:"table,omitempty"`
 }
 
 func (r *Route) UnmarshalJSON(data []byte) error {

pkg/types/types_test.go

@@ -22,6 +22,7 @@ import (
 	. "github.com/onsi/gomega"
 
 	"github.com/containernetworking/cni/pkg/types"
+	types040 "github.com/containernetworking/cni/pkg/types/040"
 	current "github.com/containernetworking/cni/pkg/types/100"
 )
 
@@ -91,7 +92,7 @@ var _ = Describe("Types", func() {
 				MTU:      1500,
 				AdvMSS:   1340,
 				Priority: 100,
-				Table:    50,
+				Table:    types040.Int(50),
 			}
 		})