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package dhcpv4
import (
"net"
"testing"
"github.com/stretchr/testify/require"
)
func TestTransactionIDModifier(t *testing.T) {
d, err := New()
require.NoError(t, err)
d = WithTransactionID(TransactionID{0xdd, 0xcc, 0xbb, 0xaa})(d)
require.Equal(t, TransactionID{0xdd, 0xcc, 0xbb, 0xaa}, d.TransactionID())
}
func TestBroadcastModifier(t *testing.T) {
d, err := New()
require.NoError(t, err)
// set and test broadcast
d = WithBroadcast(true)(d)
require.Equal(t, true, d.IsBroadcast())
// set and test unicast
d = WithBroadcast(false)(d)
require.Equal(t, true, d.IsUnicast())
}
func TestHwAddrModifier(t *testing.T) {
d, err := New()
require.NoError(t, err)
hwaddr := net.HardwareAddr{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf}
d = WithHwAddr(hwaddr)(d)
require.Equal(t, hwaddr, d.ClientHwAddr())
}
func TestWithOptionModifier(t *testing.T) {
d, err := New()
require.NoError(t, err)
d = WithOption(&OptDomainName{DomainName: "slackware.it"})(d)
opt := d.GetOneOption(OptionDomainName)
require.NotNil(t, opt)
dnOpt := opt.(*OptDomainName)
require.Equal(t, "slackware.it", dnOpt.DomainName)
}
func TestUserClassModifier(t *testing.T) {
d, err := New()
require.NoError(t, err)
userClass := WithUserClass([]byte("linuxboot"), false)
d = userClass(d)
expected := []byte{
77, // OptionUserClass
9, // length
'l', 'i', 'n', 'u', 'x', 'b', 'o', 'o', 't',
}
require.Equal(t, "User Class Information -> linuxboot", d.options[0].String())
require.Equal(t, expected, d.options[0].ToBytes())
}
func TestUserClassModifierRFC(t *testing.T) {
d, _ := New()
userClass := WithUserClass([]byte("linuxboot"), true)
d = userClass(d)
expected := []byte{
77, // OptionUserClass
10, // length
9, 'l', 'i', 'n', 'u', 'x', 'b', 'o', 'o', 't',
}
require.Equal(t, "User Class Information -> linuxboot", d.options[0].String())
require.Equal(t, expected, d.options[0].ToBytes())
}
func TestWithNetboot(t *testing.T) {
d, _ := New()
d = WithNetboot(d)
require.Equal(t, "Parameter Request List -> [TFTP Server Name, Bootfile Name]", d.options[0].String())
}
func TestWithNetbootExistingTFTP(t *testing.T) {
d, _ := New()
OptParams := &OptParameterRequestList{
RequestedOpts: []OptionCode{OptionTFTPServerName},
}
d.AddOption(OptParams)
d = WithNetboot(d)
require.Equal(t, "Parameter Request List -> [TFTP Server Name, Bootfile Name]", d.options[0].String())
}
func TestWithNetbootExistingBootfileName(t *testing.T) {
d, _ := New()
OptParams := &OptParameterRequestList{
RequestedOpts: []OptionCode{OptionBootfileName},
}
d.AddOption(OptParams)
d = WithNetboot(d)
require.Equal(t, "Parameter Request List -> [Bootfile Name, TFTP Server Name]", d.options[0].String())
}
func TestWithNetbootExistingBoth(t *testing.T) {
d, _ := New()
OptParams := &OptParameterRequestList{
RequestedOpts: []OptionCode{OptionBootfileName, OptionTFTPServerName},
}
d.AddOption(OptParams)
d = WithNetboot(d)
require.Equal(t, "Parameter Request List -> [Bootfile Name, TFTP Server Name]", d.options[0].String())
}
func TestWithRequestedOptions(t *testing.T) {
// Check if OptionParameterRequestList is created when not present
d, err := New()
require.NoError(t, err)
d = WithRequestedOptions(OptionFQDN)(d)
require.NotNil(t, d)
o := d.GetOneOption(OptionParameterRequestList)
require.NotNil(t, o)
opts := o.(*OptParameterRequestList)
require.ElementsMatch(t, opts.RequestedOpts, []OptionCode{OptionFQDN})
// Check if already set options are preserved
d = WithRequestedOptions(OptionHostName)(d)
require.NotNil(t, d)
o = d.GetOneOption(OptionParameterRequestList)
require.NotNil(t, o)
opts = o.(*OptParameterRequestList)
require.ElementsMatch(t, opts.RequestedOpts, []OptionCode{OptionFQDN, OptionHostName})
}
func TestWithRelay(t *testing.T) {
d, err := New()
require.NoError(t, err)
ip := net.ParseIP("10.0.0.1")
require.NotNil(t, ip)
d = WithRelay(ip)(d)
require.NotNil(t, d)
require.True(t, d.IsUnicast(), "expected unicast")
require.Equal(t, ip, d.GatewayIPAddr())
require.Equal(t, uint8(1), d.HopCount())
}
func TestWithNetmask(t *testing.T) {
d := &DHCPv4{}
d = WithNetmask(net.IPv4Mask(255, 255, 255, 0))(d)
require.Equal(t, 1, len(d.options))
require.Equal(t, OptionSubnetMask, d.options[0].Code())
osm := d.options[0].(*OptSubnetMask)
require.Equal(t, net.IPv4Mask(255, 255, 255, 0), osm.SubnetMask)
}
func TestWithLeaseTime(t *testing.T) {
d := &DHCPv4{}
d = WithLeaseTime(uint32(3600))(d)
require.Equal(t, 1, len(d.options))
require.Equal(t, OptionIPAddressLeaseTime, d.options[0].Code())
olt := d.options[0].(*OptIPAddressLeaseTime)
require.Equal(t, uint32(3600), olt.LeaseTime)
}
func TestWithDNS(t *testing.T) {
d := &DHCPv4{}
d = WithDNS(net.ParseIP("10.0.0.1"), net.ParseIP("10.0.0.2"))(d)
require.Equal(t, 1, len(d.options))
require.Equal(t, OptionDomainNameServer, d.options[0].Code())
olt := d.options[0].(*OptDomainNameServer)
require.Equal(t, 2, len(olt.NameServers))
require.Equal(t, net.ParseIP("10.0.0.1"), olt.NameServers[0])
require.Equal(t, net.ParseIP("10.0.0.2"), olt.NameServers[1])
require.NotEqual(t, net.ParseIP("10.0.0.1"), olt.NameServers[1])
}
func TestWithDomainSearchList(t *testing.T) {
d := &DHCPv4{}
d = WithDomainSearchList("slackware.it", "dhcp.slackware.it")(d)
require.Equal(t, 1, len(d.options))
osl := d.options[0].(*OptDomainSearch)
require.Equal(t, OptionDNSDomainSearchList, osl.Code())
require.NotNil(t, osl.DomainSearch)
require.Equal(t, 2, len(osl.DomainSearch.Labels))
require.Equal(t, "slackware.it", osl.DomainSearch.Labels[0])
require.Equal(t, "dhcp.slackware.it", osl.DomainSearch.Labels[1])
}
func TestWithRouter(t *testing.T) {
d := &DHCPv4{}
rtr := net.ParseIP("10.0.0.254")
d = WithRouter(rtr)(d)
require.Equal(t, 1, len(d.options))
ortr := d.options[0].(*OptRouter)
require.Equal(t, OptionRouter, ortr.Code())
require.Equal(t, 1, len(ortr.Routers))
require.Equal(t, rtr, ortr.Routers[0])
}
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