Function Test_NexthopUpdateBody

pkg/zebra/zapi_test.go:992–1071

(t *testing.T)

}

func Test_NexthopUpdateBody(t *testing.T) {
	assert := assert.New(t)

	size := map[uint8]uint8{2: 21, 3: 21, 4: 22, 5: 26, 6: 34}
	command := map[uint8]APIType{
		2: zapi3NexthopUpdate,
		3: zapi3NexthopUpdate,
		4: zapi4NexthopUpdate,
		5: zapi5Frr5NexthopUpdate,
		6: nexthopUpdate,
	}
	nexthopType := map[uint8]nexthopType{
		2: backwardNexthopTypeIPv4IFIndex,
		3: backwardNexthopTypeIPv4IFIndex,
		4: nexthopTypeIPv4IFIndex,
		5: nexthopTypeIPv4IFIndex,
		6: nexthopTypeIPv4IFIndex,
	}

	for v := MinZapiVer; v <= MaxZapiVer; v++ {
		// Input binary
		bufIn := make([]byte, size[v])
		pos := 0
		if v == 6 { // frr7.5
			// message flag
			copy(bufIn[pos:pos+4], []byte{0x00, 0x00, 0x00, 0x00})
			pos += 4
		}
		// afi(2 bytes)=AF_INET, prefix_len(1 byte)=32, prefix(4 bytes)="192.168.1.1"
		copy(bufIn[pos:pos+7], []byte{0x00, 0x02, 0x20, 0xc0, 0xa8, 0x01, 0x01})
		pos += 7

		if v > 4 { // Type(1byte), Instance(2byte)
			copy(bufIn[pos:pos+3], []byte{byte(routeConnect), 0x00, 0x00})
			pos += 3
		}
		if v > 3 { // Distance
			bufIn[pos] = 0
			pos++
		}
		// metric(4 bytes)=1, number of nexthops(1 byte)=1
		copy(bufIn[pos:pos+5], []byte{0x00, 0x00, 0x00, 0x01, 0x01})
		pos += 5
		if v == 6 { // version == 6 and not frr6
			binary.BigEndian.PutUint32(bufIn[pos:], 0) // vrfid
			pos += 4
		}
		bufIn[pos] = byte(nexthopType[v])
		pos++
		if v == 6 { // frr7.3 and later
			bufIn[pos] = byte(0) // nexthop flag
			pos++
		}
		// nexthop_ip(4 bytes)="192.168.0.1", nexthop_Ifindex(4 byte)=2
		copy(bufIn[pos:pos+8], []byte{0xc0, 0xa8, 0x01, 0x01, 0x00, 0x00, 0x00, 0x02})
		pos += 8
		if v == 5 { // frr7.3&7.4 (latest software of zapi v6) depends on nexthop flag
			bufIn[pos] = byte(0) // label num