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package dhcpv6
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestOptIAForPrefixDelegationParseOptIAForPrefixDelegation(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
0, 0, 0, 2, // T2
0, 26, 0, 25, // 26 = IAPrefix Option, 25 = length
0xaa, 0xbb, 0xcc, 0xdd, // IAPrefix preferredLifetime
0xee, 0xff, 0x00, 0x11, // IAPrefix validLifetime
36, // IAPrefix prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // IAPrefix ipv6Prefix
}
opt, err := ParseOptIAForPrefixDelegation(data)
require.NoError(t, err)
require.Equal(t, len(data), opt.Length())
require.Equal(t, OptionIAPD, opt.Code())
require.Equal(t, []byte{1, 0, 0, 0}, opt.IAID())
require.Equal(t, uint32(1), opt.T1())
require.Equal(t, uint32(2), opt.T2())
}
func TestOptIAForPrefixDelegationParseOptIAForPrefixDelegationInvalidLength(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
// truncated from here
}
_, err := ParseOptIAForPrefixDelegation(data)
require.Error(t, err)
}
func TestOptIAForPrefixDelegationParseOptIAForPrefixDelegationInvalidOptions(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
0, 0, 0, 2, // T2
0, 26, 0, 25, // 26 = IAPrefix Option, 25 = length
0xaa, 0xbb, 0xcc, 0xdd, // IAPrefix preferredLifetime
0xee, 0xff, 0x00, 0x11, // IAPrefix validLifetime
36, // IAPrefix prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // IAPrefix ipv6Prefix missing last byte
}
_, err := ParseOptIAForPrefixDelegation(data)
require.Error(t, err)
}
func TestOptIAForPrefixDelegationGetOneOption(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // ipv6Prefix
}
oaddr, err := ParseOptIAPrefix(buf)
if err != nil {
t.Fatal(err)
}
opt := OptIAForPrefixDelegation{}
opt.SetOptions(oaddr.ToBytes())
require.Equal(t, oaddr, opt.GetOneOption(OptionIAPrefix))
}
func TestOptIAForPrefixDelegationGetOneOptionMissingOpt(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // ipv6Prefix
}
oaddr, err := ParseOptIAPrefix(buf)
if err != nil {
t.Fatal(err)
}
opt := OptIAForPrefixDelegation{}
opt.SetOptions(oaddr.ToBytes())
require.Equal(t, nil, opt.GetOneOption(OptionDNSRecursiveNameServer))
}
func TestOptIAForPrefixDelegationDelOption(t *testing.T) {
optiana1 := OptIAForPrefixDelegation{}
optiana2 := OptIAForPrefixDelegation{}
optiaaddr := OptIAPrefix{}
optsc := OptStatusCode{}
var buf = make([]byte, 0)
buf = append(buf, optsc.ToBytes()...)
buf = append(buf, optiaaddr.ToBytes()...)
buf = append(buf, optiaaddr.ToBytes()...)
optiana1.SetOptions(buf)
optiana1.DelOption(OptionIAPrefix)
require.Equal(t, optiana1.Options(), optsc.ToBytes())
buf = make([]byte, 0)
buf = append(buf, optiaaddr.ToBytes()...)
buf = append(buf, optsc.ToBytes()...)
buf = append(buf, optiaaddr.ToBytes()...)
optiana2.SetOptions(buf)
optiana2.DelOption(OptionIAPrefix)
require.Equal(t, optiana2.Options(), optsc.ToBytes())
}
func TestOptIAForPrefixDelegationToBytes(t *testing.T) {
oaddr := OptIAPrefix{}
oaddr.SetPreferredLifetime(0xaabbccdd)
oaddr.SetValidLifetime(0xeeff0011)
oaddr.SetPrefixLength(36)
oaddr.SetIPv6Prefix([16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1})
opt := OptIAForPrefixDelegation{}
opt.SetIAID([4]byte{1, 2, 3, 4})
opt.SetT1(12345)
opt.SetT2(54321)
opt.SetOptions(oaddr.ToBytes())
expected := []byte{
0, 25, // OptionIAPD
0, 41, // length
1, 2, 3, 4, // IA ID
0, 0, 0x30, 0x39, // T1 = 12345
0, 0, 0xd4, 0x31, // T2 = 54321
0, 26, 0, 25, // 26 = IAPrefix Option, 25 = length
0xaa, 0xbb, 0xcc, 0xdd, // IAPrefix preferredLifetime
0xee, 0xff, 0x00, 0x11, // IAPrefix validLifetime
36, // IAPrefix prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // IAPrefix ipv6Prefix
}
require.Equal(t, expected, opt.ToBytes())
}
func TestOptIAForPrefixDelegationSetOptionsTooShort(t *testing.T) {
buf := []byte{
0, 26, 0, 25, // 26 = IAPrefix Option, 25 = length
0xaa, 0xbb, 0xcc, 0xdd, // IAPrefix preferredLifetime
0xee, 0xff, // truncated half-way through validLifetime
}
oaddr := OptIAForPrefixDelegation{}
err := oaddr.SetOptions(buf)
require.Error(t, err, "SetOptions() should return an error if invalid options are set")
}
func TestOptIAForPrefixDelegationString(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
0, 0, 0, 2, // T2
0, 26, 0, 25, // 26 = IAPrefix Option, 25 = length
0xaa, 0xbb, 0xcc, 0xdd, // IAPrefix preferredLifetime
0xee, 0xff, 0x00, 0x11, // IAPrefix validLifetime
36, // IAPrefix prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // IAPrefix ipv6Prefix
}
opt, err := ParseOptIAForPrefixDelegation(data)
require.NoError(t, err)
str := opt.String()
require.Contains(
t, str,
"IAID=[1 0 0 0]",
"String() should return the IAID",
)
require.Contains(
t, str,
"t1=1, t2=2",
"String() should return the T1/T2 options",
)
require.Contains(
t, str,
"options=[",
"String() should return a list of options",
)
}
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