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package bsdp
import (
"net"
"testing"
"github.com/insomniacslk/dhcp/dhcpv4"
"github.com/insomniacslk/dhcp/iana"
"github.com/stretchr/testify/require"
)
func TestParseBootImageListFromAck(t *testing.T) {
expectedBootImages := []BootImage{
BootImage{
ID: BootImageID{
IsInstall: true,
ImageType: BootImageTypeMacOSX,
Index: 0x1010,
},
Name: "bsdp-1",
},
BootImage{
ID: BootImageID{
IsInstall: false,
ImageType: BootImageTypeMacOS9,
Index: 0x1111,
},
Name: "bsdp-2",
},
}
ack, _ := dhcpv4.New()
ack.AddOption(&OptVendorSpecificInformation{
[]dhcpv4.Option{&OptBootImageList{expectedBootImages}},
})
images, err := ParseBootImageListFromAck(*ack)
require.NoError(t, err)
require.NotEmpty(t, images, "should get BootImages")
require.Equal(t, expectedBootImages, images, "should get same BootImages")
}
func TestParseBootImageListFromAckNoVendorOption(t *testing.T) {
ack, _ := dhcpv4.New()
images, err := ParseBootImageListFromAck(*ack)
require.Error(t, err)
require.Empty(t, images, "no BootImages")
}
func TestNeedsReplyPort(t *testing.T) {
require.True(t, needsReplyPort(123))
require.False(t, needsReplyPort(0))
require.False(t, needsReplyPort(dhcpv4.ClientPort))
}
func TestNewInformList_NoReplyPort(t *testing.T) {
hwAddr := net.HardwareAddr{1, 2, 3, 4, 5, 6}
localIP := net.IPv4(10, 10, 11, 11)
m, err := NewInformList(hwAddr, localIP, 0)
require.NoError(t, err)
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionVendorSpecificInformation))
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionParameterRequestList))
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionMaximumDHCPMessageSize))
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionEnd))
opt := m.GetOneOption(dhcpv4.OptionVendorSpecificInformation)
require.NotNil(t, opt, "vendor opts not present")
vendorInfo := opt.(*OptVendorSpecificInformation)
require.True(t, dhcpv4.HasOption(vendorInfo, OptionMessageType))
require.True(t, dhcpv4.HasOption(vendorInfo, OptionVersion))
opt = vendorInfo.GetOneOption(OptionMessageType)
require.Equal(t, MessageTypeList, opt.(*OptMessageType).Type)
}
func TestNewInformList_ReplyPort(t *testing.T) {
hwAddr := net.HardwareAddr{1, 2, 3, 4, 5, 6}
localIP := net.IPv4(10, 10, 11, 11)
replyPort := uint16(11223)
// Bad reply port
_, err := NewInformList(hwAddr, localIP, replyPort)
require.Error(t, err)
// Good reply port
replyPort = uint16(999)
m, err := NewInformList(hwAddr, localIP, replyPort)
require.NoError(t, err)
opt := m.GetOneOption(dhcpv4.OptionVendorSpecificInformation)
vendorInfo := opt.(*OptVendorSpecificInformation)
require.True(t, dhcpv4.HasOption(vendorInfo, OptionReplyPort))
opt = vendorInfo.GetOneOption(OptionReplyPort)
require.Equal(t, replyPort, opt.(*OptReplyPort).Port)
}
func newAck(hwAddr []byte, transactionID uint32) *dhcpv4.DHCPv4 {
ack, _ := dhcpv4.New()
ack.SetTransactionID(transactionID)
ack.SetHwType(iana.HwTypeEthernet)
ack.SetClientHwAddr(hwAddr)
ack.SetHwAddrLen(uint8(len(hwAddr)))
ack.AddOption(&dhcpv4.OptMessageType{MessageType: dhcpv4.MessageTypeAck})
ack.AddOption(&dhcpv4.OptionGeneric{OptionCode: dhcpv4.OptionEnd})
return ack
}
func TestInformSelectForAck_Broadcast(t *testing.T) {
hwAddr := []byte{0x11, 0x22, 0x33, 0x44, 0x55, 0x66}
tid := uint32(22)
serverID := net.IPv4(1, 2, 3, 4)
bootImage := BootImage{
ID: BootImageID{
IsInstall: true,
ImageType: BootImageTypeMacOSX,
Index: 0x1000,
},
Name: "bsdp-1",
}
ack := newAck(hwAddr, tid)
ack.SetBroadcast()
ack.AddOption(&dhcpv4.OptServerIdentifier{ServerID: serverID})
m, err := InformSelectForAck(*ack, 0, bootImage)
require.NoError(t, err)
require.Equal(t, dhcpv4.OpcodeBootRequest, m.Opcode())
require.Equal(t, ack.HwType(), m.HwType())
require.Equal(t, ack.ClientHwAddr(), m.ClientHwAddr())
require.Equal(t, ack.TransactionID(), m.TransactionID())
require.True(t, m.IsBroadcast())
// Validate options.
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionClassIdentifier))
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionParameterRequestList))
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionDHCPMessageType))
opt := m.GetOneOption(dhcpv4.OptionDHCPMessageType)
require.Equal(t, dhcpv4.MessageTypeInform, opt.(*dhcpv4.OptMessageType).MessageType)
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionEnd))
// Validate vendor opts.
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionVendorSpecificInformation))
opt = m.GetOneOption(dhcpv4.OptionVendorSpecificInformation)
vendorInfo := opt.(*OptVendorSpecificInformation)
require.True(t, dhcpv4.HasOption(vendorInfo, OptionMessageType))
opt = vendorInfo.GetOneOption(OptionMessageType)
require.Equal(t, MessageTypeSelect, opt.(*OptMessageType).Type)
require.True(t, dhcpv4.HasOption(vendorInfo, OptionVersion))
require.True(t, dhcpv4.HasOption(vendorInfo, OptionSelectedBootImageID))
opt = vendorInfo.GetOneOption(OptionSelectedBootImageID)
require.Equal(t, bootImage.ID, opt.(*OptSelectedBootImageID).ID)
require.True(t, dhcpv4.HasOption(vendorInfo, OptionServerIdentifier))
opt = vendorInfo.GetOneOption(OptionServerIdentifier)
require.True(t, serverID.Equal(opt.(*OptServerIdentifier).ServerID))
}
func TestInformSelectForAck_NoServerID(t *testing.T) {
hwAddr := []byte{0x11, 0x22, 0x33, 0x44, 0x55, 0x66}
tid := uint32(22)
bootImage := BootImage{
ID: BootImageID{
IsInstall: true,
ImageType: BootImageTypeMacOSX,
Index: 0x1000,
},
Name: "bsdp-1",
}
ack := newAck(hwAddr, tid)
_, err := InformSelectForAck(*ack, 0, bootImage)
require.Error(t, err, "expect error for no server identifier option")
}
func TestInformSelectForAck_BadReplyPort(t *testing.T) {
hwAddr := []byte{0x11, 0x22, 0x33, 0x44, 0x55, 0x66}
tid := uint32(22)
serverID := net.IPv4(1, 2, 3, 4)
bootImage := BootImage{
ID: BootImageID{
IsInstall: true,
ImageType: BootImageTypeMacOSX,
Index: 0x1000,
},
Name: "bsdp-1",
}
ack := newAck(hwAddr, tid)
ack.SetBroadcast()
ack.AddOption(&dhcpv4.OptServerIdentifier{ServerID: serverID})
_, err := InformSelectForAck(*ack, 11223, bootImage)
require.Error(t, err, "expect error for > 1024 replyPort")
}
func TestInformSelectForAck_ReplyPort(t *testing.T) {
hwAddr := []byte{0x11, 0x22, 0x33, 0x44, 0x55, 0x66}
tid := uint32(22)
serverID := net.IPv4(1, 2, 3, 4)
bootImage := BootImage{
ID: BootImageID{
IsInstall: true,
ImageType: BootImageTypeMacOSX,
Index: 0x1000,
},
Name: "bsdp-1",
}
ack := newAck(hwAddr, tid)
ack.SetBroadcast()
ack.AddOption(&dhcpv4.OptServerIdentifier{ServerID: serverID})
replyPort := uint16(999)
m, err := InformSelectForAck(*ack, replyPort, bootImage)
require.NoError(t, err)
require.True(t, dhcpv4.HasOption(m, dhcpv4.OptionVendorSpecificInformation))
opt := m.GetOneOption(dhcpv4.OptionVendorSpecificInformation)
vendorInfo := opt.(*OptVendorSpecificInformation)
require.True(t, dhcpv4.HasOption(vendorInfo, OptionReplyPort))
opt = vendorInfo.GetOneOption(OptionReplyPort)
require.Equal(t, replyPort, opt.(*OptReplyPort).Port)
}
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