follow Standard Go Project Layout

https://github.com/golang-standards/project-layout

Now you can see clearly what are private and public library code.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 531 insertions, 0 deletions

diff --git a/internal/pkg/zebra/zapi_test.go b/internal/pkg/zebra/zapi_test.go
new file mode 100644
index 00000000..9fda5416
--- /dev/null
+++ b/internal/pkg/zebra/zapi_test.go
@@ -0,0 +1,531 @@
+// Copyright (C) 2014, 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package zebra
+
+import (
+	"encoding/binary"
+	"net"
+	"syscall"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_Header(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes
+	buf := make([]byte, 6)
+	binary.BigEndian.PutUint16(buf[0:], 10)
+	buf[2] = HEADER_MARKER
+	buf[3] = 2
+	binary.BigEndian.PutUint16(buf[4:], uint16(IPV4_ROUTE_ADD))
+	h := &Header{}
+	err := h.DecodeFromBytes(buf)
+	assert.Equal(nil, err)
+
+	//Serialize
+	buf, err = h.Serialize()
+	assert.Equal(nil, err)
+	h2 := &Header{}
+	err = h2.DecodeFromBytes(buf)
+	assert.Equal(nil, err)
+	assert.Equal(h, h2)
+
+	// header_size mismatch
+	buf = make([]byte, HeaderSize(2)-1)
+	binary.BigEndian.PutUint16(buf[0:], 10)
+	buf[2] = 0xff
+	buf[3] = 0x02
+	h3 := &Header{}
+	err = h3.DecodeFromBytes(buf)
+	assert.NotEqual(nil, err)
+}
+
+func Test_InterfaceUpdateBody(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes
+	buf := make([]byte, INTERFACE_NAMSIZ+49)
+	pos := INTERFACE_NAMSIZ
+	binary.BigEndian.PutUint32(buf[pos:], 1)
+	pos += 4
+	buf[pos] = byte(INTERFACE_ACTIVE)
+	pos += 1
+	binary.BigEndian.PutUint64(buf[pos:], 1)
+	pos += 8 // flags
+	binary.BigEndian.PutUint32(buf[pos:], 1)
+	pos += 4 // metric
+	binary.BigEndian.PutUint32(buf[pos:], 1500)
+	pos += 4 // MTU
+	binary.BigEndian.PutUint32(buf[pos:], 1500)
+	pos += 4 // MTU6
+	binary.BigEndian.PutUint32(buf[pos:], 200)
+	pos += 4 // bandwidth
+	binary.BigEndian.PutUint32(buf[pos:], 6)
+	pos += 4 // hwaddr_len
+	mac, _ := net.ParseMAC("01:23:45:67:89:ab")
+	copy(buf[pos:pos+6], []byte(mac))
+	pos += 4
+	b := &InterfaceUpdateBody{}
+	err := b.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+	assert.Equal("01:23:45:67:89:ab", b.HardwareAddr.String())
+
+	buf = make([]byte, INTERFACE_NAMSIZ+28)
+	b = &InterfaceUpdateBody{}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.NotEqual(nil, err)
+}
+
+func Test_InterfaceAddressUpdateBody(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes
+	buf := make([]byte, 15)
+	pos := 0
+	binary.BigEndian.PutUint32(buf[pos:], 0) // index
+	pos += 4
+	buf[pos] = 0x01 // flags
+	pos += 1
+	buf[pos] = 0x2 // family
+	pos += 1
+	ip := net.ParseIP("192.168.100.1").To4() // prefix
+	copy(buf[pos:pos+4], []byte(ip))
+	pos += 4
+	buf[pos] = byte(24) // prefix len
+	pos += 1
+	dst := net.ParseIP("192.168.100.255").To4() // destination
+	copy(buf[pos:pos+4], []byte(dst))
+
+	b := &InterfaceAddressUpdateBody{}
+	err := b.DecodeFromBytes(buf, 2)
+	require.NoError(t, err)
+
+	assert.Equal(uint32(0), b.Index)
+	assert.Equal(INTERFACE_ADDRESS_FLAG(1), b.Flags)
+	assert.Equal("192.168.100.1", b.Prefix.String())
+	assert.Equal(uint8(24), b.Length)
+	assert.Equal("192.168.100.255", b.Destination.String())
+
+	// af invalid
+	buf[5] = 0x4
+	pos += 1
+	b = &InterfaceAddressUpdateBody{}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.NotEqual(nil, err)
+}
+
+func Test_RouterIDUpdateBody(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes
+	buf := make([]byte, 6)
+	pos := 0
+	buf[pos] = 0x2
+	pos += 1
+	ip := net.ParseIP("192.168.100.1").To4()
+	copy(buf[pos:pos+4], []byte(ip))
+	pos += 4
+	buf[pos] = byte(32)
+
+	b := &RouterIDUpdateBody{}
+	err := b.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+	assert.Equal("192.168.100.1", b.Prefix.String())
+	assert.Equal(uint8(32), b.Length)
+
+	// af invalid
+	buf[0] = 0x4
+	pos += 1
+	b = &RouterIDUpdateBody{}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.NotEqual(nil, err)
+}
+
+func Test_IPRouteBody_IPv4(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes IPV4_ROUTE
+	buf := make([]byte, 26)
+	buf[0] = byte(ROUTE_CONNECT)
+	buf[1] = byte(FLAG_SELECTED)
+	buf[2] = byte(MESSAGE_NEXTHOP | MESSAGE_DISTANCE | MESSAGE_METRIC | MESSAGE_MTU)
+	buf[3] = 24
+	ip := net.ParseIP("192.168.100.0").To4()
+	copy(buf[4:7], []byte(ip))
+
+	buf[7] = 1
+	nexthop := net.ParseIP("0.0.0.0").To4()
+	copy(buf[8:12], []byte(nexthop))
+
+	buf[12] = 1
+	binary.BigEndian.PutUint32(buf[13:], 1)
+	buf[17] = 0 // distance
+	binary.BigEndian.PutUint32(buf[18:], 1)
+	binary.BigEndian.PutUint32(buf[22:], 1)
+	r := &IPRouteBody{Api: IPV4_ROUTE_ADD}
+	err := r.DecodeFromBytes(buf, 2)
+
+	assert.Equal(nil, err)
+	assert.Equal("192.168.100.0", r.Prefix.String())
+	assert.Equal(uint8(0x18), r.PrefixLength)
+	assert.Equal(MESSAGE_NEXTHOP|MESSAGE_DISTANCE|MESSAGE_METRIC|MESSAGE_MTU, r.Message)
+	assert.Equal("0.0.0.0", r.Nexthops[0].String())
+	assert.Equal(uint32(1), r.Ifindexs[0])
+	assert.Equal(uint8(0), r.Distance)
+	assert.Equal(uint32(1), r.Metric)
+	assert.Equal(uint32(1), r.Mtu)
+
+	//Serialize
+	buf, err = r.Serialize(2)
+	assert.Equal(nil, err)
+	assert.Equal([]byte{0x2, 0x10, 0x1d}, buf[0:3])
+	assert.Equal([]byte{0x0, 0x1}, buf[3:5])
+	assert.Equal(byte(24), buf[5])
+	ip = net.ParseIP("192.168.100.0").To4()
+	assert.Equal([]byte(ip)[0:3], buf[6:9])
+	assert.Equal(byte(NEXTHOP_IPV4), buf[10])
+	assert.Equal(byte(NEXTHOP_IFINDEX), buf[15])
+	assert.Equal(byte(0x0), buf[20])
+
+	bi := make([]byte, 4)
+	binary.BigEndian.PutUint32(bi, 1)
+	assert.Equal(bi, buf[21:25])
+	assert.Equal(bi, buf[25:])
+
+	// length invalid
+	buf = make([]byte, 18)
+	buf[0] = byte(ROUTE_CONNECT)
+	buf[1] = byte(FLAG_SELECTED)
+	buf[2] = byte(MESSAGE_NEXTHOP | MESSAGE_DISTANCE | MESSAGE_METRIC)
+	buf[3] = 24
+	ip = net.ParseIP("192.168.100.0").To4()
+	copy(buf[4:7], []byte(ip))
+	buf[7] = 1
+	nexthop = net.ParseIP("0.0.0.0").To4()
+	copy(buf[8:12], []byte(nexthop))
+	buf[12] = 1
+	binary.BigEndian.PutUint32(buf[13:], 1)
+
+	r = &IPRouteBody{Api: IPV4_ROUTE_ADD}
+	err = r.DecodeFromBytes(buf, 2)
+	assert.Equal("message length invalid", err.Error())
+
+	// no nexthop
+	buf = make([]byte, 12)
+	buf[0] = byte(ROUTE_CONNECT)
+	buf[1] = byte(FLAG_SELECTED)
+	buf[2] = byte(MESSAGE_DISTANCE | MESSAGE_METRIC)
+	buf[3] = 24
+	ip = net.ParseIP("192.168.100.0").To4()
+	copy(buf[4:7], []byte(ip))
+	buf[7] = 1
+	binary.BigEndian.PutUint32(buf[8:], 0)
+	r = &IPRouteBody{Api: IPV4_ROUTE_ADD}
+	err = r.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+
+}
+
+func Test_IPRouteBody_IPv6(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes IPV6_ROUTE
+	buf := make([]byte, 43)
+	buf[0] = byte(ROUTE_CONNECT)
+	buf[1] = byte(FLAG_SELECTED)
+	buf[2] = byte(MESSAGE_NEXTHOP | MESSAGE_DISTANCE | MESSAGE_METRIC | MESSAGE_MTU)
+	buf[3] = 64
+	ip := net.ParseIP("2001:db8:0:f101::").To16()
+	copy(buf[4:12], []byte(ip))
+
+	buf[12] = 1
+	nexthop := net.ParseIP("::").To16()
+	copy(buf[13:29], []byte(nexthop))
+	// ifindex
+	buf[29] = 1
+	binary.BigEndian.PutUint32(buf[30:], 1)
+
+	buf[34] = 0 // distance
+	binary.BigEndian.PutUint32(buf[35:], 1)
+	binary.BigEndian.PutUint32(buf[39:], 1)
+	r := &IPRouteBody{Api: IPV6_ROUTE_ADD}
+	err := r.DecodeFromBytes(buf, 2)
+
+	assert.Equal(nil, err)
+	assert.Equal("2001:db8:0:f101::", r.Prefix.String())
+	assert.Equal(uint8(64), r.PrefixLength)
+	assert.Equal(MESSAGE_NEXTHOP|MESSAGE_DISTANCE|MESSAGE_METRIC|MESSAGE_MTU, r.Message)
+	assert.Equal("::", r.Nexthops[0].String())
+	assert.Equal(uint32(1), r.Ifindexs[0])
+	assert.Equal(uint8(0), r.Distance)
+	assert.Equal(uint32(1), r.Metric)
+	assert.Equal(uint32(1), r.Mtu)
+
+	//Serialize
+	buf, err = r.Serialize(2)
+	assert.Equal(nil, err)
+	assert.Equal([]byte{0x2, 0x10, 0x1d}, buf[0:3])
+	assert.Equal([]byte{0x0, 0x1}, buf[3:5])
+	assert.Equal(byte(64), buf[5])
+	ip = net.ParseIP("2001:db8:0:f101::").To16()
+	assert.Equal([]byte(ip)[0:8], buf[6:14])
+	assert.Equal(byte(2), buf[14])
+	assert.Equal(byte(NEXTHOP_IPV6), buf[15])
+	ip = net.ParseIP("::").To16()
+	assert.Equal([]byte(ip), buf[16:32])
+	assert.Equal(byte(NEXTHOP_IFINDEX), buf[32])
+	bi := make([]byte, 4)
+	binary.BigEndian.PutUint32(bi, 1)
+	assert.Equal(bi, buf[33:37])
+
+	//distance
+	assert.Equal(byte(0), buf[37])
+	bi = make([]byte, 4)
+	binary.BigEndian.PutUint32(bi, 1)
+	assert.Equal(bi, buf[38:42])
+	assert.Equal(bi, buf[42:])
+
+	// length invalid
+	buf = make([]byte, 50)
+	buf[0] = byte(ROUTE_CONNECT)
+	buf[1] = byte(FLAG_SELECTED)
+	buf[2] = byte(MESSAGE_NEXTHOP | MESSAGE_DISTANCE | MESSAGE_METRIC)
+	buf[3] = 24
+	ip = net.ParseIP("2001:db8:0:f101::").To4()
+	copy(buf[4:12], []byte(ip))
+	buf[13] = 1
+	nexthop = net.ParseIP("::").To16()
+	copy(buf[14:30], []byte(nexthop))
+	buf[31] = 1
+	binary.BigEndian.PutUint32(buf[32:], 1)
+
+	r = &IPRouteBody{Api: IPV6_ROUTE_ADD}
+	err = r.DecodeFromBytes(buf, 2)
+	assert.Equal("message length invalid", err.Error())
+
+	// no nexthop
+	buf = make([]byte, 11)
+	buf[0] = byte(ROUTE_CONNECT)
+	buf[1] = byte(FLAG_SELECTED)
+	buf[2] = byte(MESSAGE_DISTANCE | MESSAGE_METRIC)
+	buf[3] = 16
+	ip = net.ParseIP("2501::").To16()
+	copy(buf[4:6], []byte(ip))
+	buf[6] = 1
+	binary.BigEndian.PutUint32(buf[7:], 0)
+	r = &IPRouteBody{Api: IPV6_ROUTE_ADD}
+	err = r.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+}
+
+func Test_NexthopLookupBody(t *testing.T) {
+	assert := assert.New(t)
+
+	//ipv4
+	//DecodeFromBytes
+	pos := 0
+	buf := make([]byte, 18)
+	ip := net.ParseIP("192.168.50.0").To4()
+	copy(buf[0:4], []byte(ip))
+	pos += 4
+	binary.BigEndian.PutUint32(buf[pos:], 10)
+	pos += 4
+	buf[pos] = byte(1)
+	pos += 1
+	buf[pos] = byte(4)
+	pos += 1
+	ip = net.ParseIP("172.16.1.101").To4()
+	copy(buf[pos:pos+4], []byte(ip))
+	pos += 4
+	binary.BigEndian.PutUint32(buf[pos:], 3)
+
+	b := &NexthopLookupBody{Api: IPV4_NEXTHOP_LOOKUP}
+	err := b.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+	assert.Equal("192.168.50.0", b.Addr.String())
+	assert.Equal(uint32(10), b.Metric)
+	assert.Equal(uint32(3), b.Nexthops[0].Ifindex)
+	assert.Equal(NEXTHOP_FLAG(4), b.Nexthops[0].Type)
+	assert.Equal("172.16.1.101", b.Nexthops[0].Addr.String())
+
+	//Serialize
+	buf, err = b.Serialize(2)
+	ip = net.ParseIP("192.168.50.0").To4()
+	assert.Equal(nil, err)
+	assert.Equal([]byte(ip)[0:4], buf[0:4])
+
+	// length invalid
+	buf = make([]byte, 3)
+	b = &NexthopLookupBody{Api: IPV4_NEXTHOP_LOOKUP}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.NotEqual(nil, err)
+
+	//ipv6
+	//DecodeFromBytes
+	pos = 0
+	buf = make([]byte, 46)
+	ip = net.ParseIP("2001:db8:0:f101::").To16()
+	copy(buf[0:16], []byte(ip))
+	pos += 16
+	binary.BigEndian.PutUint32(buf[pos:], 10)
+	pos += 4
+	buf[pos] = byte(1)
+	pos += 1
+	buf[pos] = byte(4)
+	pos += 1
+	ip = net.ParseIP("2001:db8:0:1111::1").To16()
+	copy(buf[pos:pos+16], []byte(ip))
+	pos += 16
+	binary.BigEndian.PutUint32(buf[pos:], 3)
+
+	b = &NexthopLookupBody{Api: IPV6_NEXTHOP_LOOKUP}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+	assert.Equal("2001:db8:0:f101::", b.Addr.String())
+	assert.Equal(uint32(10), b.Metric)
+	assert.Equal(uint32(3), b.Nexthops[0].Ifindex)
+	assert.Equal(NEXTHOP_FLAG(4), b.Nexthops[0].Type)
+	assert.Equal("2001:db8:0:1111::1", b.Nexthops[0].Addr.String())
+
+	//Serialize
+	buf, err = b.Serialize(2)
+	ip = net.ParseIP("2001:db8:0:f101::").To16()
+	assert.Equal(nil, err)
+	assert.Equal([]byte(ip)[0:16], buf[0:16])
+
+	// length invalid
+	buf = make([]byte, 15)
+	b = &NexthopLookupBody{Api: IPV6_NEXTHOP_LOOKUP}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.NotEqual(nil, err)
+}
+
+func Test_ImportLookupBody(t *testing.T) {
+	assert := assert.New(t)
+
+	//DecodeFromBytes
+	pos := 0
+	buf := make([]byte, 18)
+	ip := net.ParseIP("192.168.50.0").To4()
+	copy(buf[0:4], []byte(ip))
+	pos += 4
+	binary.BigEndian.PutUint32(buf[pos:], 10)
+	pos += 4
+	buf[pos] = byte(1)
+	pos += 1
+	buf[pos] = byte(4)
+	pos += 1
+	ip = net.ParseIP("172.16.1.101").To4()
+	copy(buf[pos:pos+4], []byte(ip))
+	pos += 4
+	binary.BigEndian.PutUint32(buf[pos:], 3)
+
+	b := &ImportLookupBody{Api: IPV4_IMPORT_LOOKUP}
+	err := b.DecodeFromBytes(buf, 2)
+	assert.Equal(nil, err)
+	assert.Equal("192.168.50.0", b.Addr.String())
+	assert.Equal(uint32(10), b.Metric)
+	assert.Equal(uint32(3), b.Nexthops[0].Ifindex)
+	assert.Equal(NEXTHOP_FLAG(4), b.Nexthops[0].Type)
+	assert.Equal("172.16.1.101", b.Nexthops[0].Addr.String())
+
+	//Serialize
+	b.PrefixLength = uint8(24)
+	buf, err = b.Serialize(2)
+	ip = net.ParseIP("192.168.50.0").To4()
+	assert.Equal(nil, err)
+	assert.Equal(uint8(24), buf[0])
+	assert.Equal([]byte(ip)[0:4], buf[1:5])
+
+	// length invalid
+	buf = make([]byte, 3)
+	b = &ImportLookupBody{Api: IPV4_IMPORT_LOOKUP}
+	err = b.DecodeFromBytes(buf, 2)
+	assert.NotEqual(nil, err)
+}
+
+func Test_NexthopRegisterBody(t *testing.T) {
+	assert := assert.New(t)
+
+	// Input binary
+	bufIn := []byte{
+		0x01, 0x00, 0x02, 0x20, // connected(1 byte)=1, afi(2 bytes)=AF_INET, prefix_len(1 byte)=32
+		0xc0, 0xa8, 0x01, 0x01, // prefix(4 bytes)="192.168.1.1"
+		0x00, 0x00, 0x0a, 0x80, // connected(1 byte)=0, afi(2 bytes)=AF_INET6, prefix_len(1 byte)=128
+		0x20, 0x01, 0x0d, 0xb8, // prefix(16 bytes)="2001:db8:1:1::1"
+		0x00, 0x01, 0x00, 0x01,
+		0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x01,
+	}
+	binary.BigEndian.PutUint16(bufIn[1:], syscall.AF_INET)
+	binary.BigEndian.PutUint16(bufIn[9:], syscall.AF_INET6)
+
+	// Test DecodeFromBytes()
+	b := &NexthopRegisterBody{Api: NEXTHOP_REGISTER}
+	err := b.DecodeFromBytes(bufIn, 3)
+	assert.Nil(err)
+
+	// Test decoded values
+	assert.Equal(uint8(1), b.Nexthops[0].Connected)
+	assert.Equal(uint16(syscall.AF_INET), b.Nexthops[0].Family)
+	assert.Equal(net.ParseIP("192.168.1.1").To4(), b.Nexthops[0].Prefix)
+	assert.Equal(uint8(0), b.Nexthops[1].Connected)
+	assert.Equal(uint16(syscall.AF_INET6), b.Nexthops[1].Family)
+	assert.Equal(net.ParseIP("2001:db8:1:1::1").To16(), b.Nexthops[1].Prefix)
+
+	// Test Serialize()
+	bufOut, err := b.Serialize(3)
+	assert.Nil(err)
+
+	// Test serialised value
+	assert.Equal(bufIn, bufOut)
+}
+
+func Test_NexthopUpdateBody(t *testing.T) {
+	assert := assert.New(t)
+
+	// Input binary
+	bufIn := []byte{
+		0x00, 0x02, 0x20, // afi(2 bytes)=AF_INET, prefix_len(1 byte)=32
+		0xc0, 0xa8, 0x01, 0x01, // prefix(4 bytes)="192.168.1.1"
+		0x00, 0x00, 0x00, 0x01, // metric(4 bytes)=1
+		0x01,                   // nexthops(1 byte)=1
+		0x04,                   // nexthop_type(1 byte)=NEXTHOP_IPV4_IFINDEX
+		0xc0, 0xa8, 0x01, 0x01, // nexthop_ip(4 bytes)="192.168.0.1"
+		0x00, 0x00, 0x00, 0x02, // nexthop_ifindex(4 byte)=2
+	}
+
+	// Test DecodeFromBytes()
+	b := &NexthopUpdateBody{Api: NEXTHOP_UPDATE}
+	err := b.DecodeFromBytes(bufIn, 2)
+	assert.Nil(err)
+
+	// Test decoded values
+	assert.Equal(uint16(syscall.AF_INET), b.Family)
+	assert.Equal(net.ParseIP("192.168.1.1").To4(), b.Prefix)
+	assert.Equal(uint32(1), b.Metric)
+	nexthop := &Nexthop{
+		Type:    NEXTHOP_FLAG(NEXTHOP_IPV4_IFINDEX),
+		Addr:    net.ParseIP("192.168.1.1").To4(),
+		Ifindex: uint32(2),
+	}
+	assert.Equal(1, len(b.Nexthops))
+	assert.Equal(nexthop, b.Nexthops[0])
+}