88 lines
1.7 KiB
Go
88 lines
1.7 KiB
Go
//go:build freebsd || openbsd
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// +build freebsd openbsd
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package dhcpd
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import (
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"bytes"
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"net"
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"testing"
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"github.com/AdguardTeam/golibs/netutil"
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"github.com/insomniacslk/dhcp/dhcpv4"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestV4Server_Send_broadcast(t *testing.T) {
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b := &bytes.Buffer{}
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var peer *net.UDPAddr
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conn := &fakePacketConn{
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writeTo: func(p []byte, addr net.Addr) (n int, err error) {
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udpPeer, ok := addr.(*net.UDPAddr)
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require.True(t, ok)
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peer = cloneUDPAddr(udpPeer)
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n, err = b.Write(p)
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require.NoError(t, err)
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return n, nil
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},
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}
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defaultPeer := &net.UDPAddr{
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IP: net.IP{1, 2, 3, 4},
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// Use neither client nor server port.
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Port: 1234,
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}
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s := &v4Server{
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conf: V4ServerConf{
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broadcastIP: net.IP{1, 2, 3, 255},
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},
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}
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testCases := []struct {
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name string
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req *dhcpv4.DHCPv4
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resp *dhcpv4.DHCPv4
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}{{
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name: "nak",
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req: &dhcpv4.DHCPv4{
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GatewayIPAddr: netutil.IPv4Zero(),
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},
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resp: &dhcpv4.DHCPv4{
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Options: dhcpv4.OptionsFromList(
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dhcpv4.OptMessageType(dhcpv4.MessageTypeNak),
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),
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},
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}, {
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name: "fully_unspecified",
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req: &dhcpv4.DHCPv4{
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GatewayIPAddr: netutil.IPv4Zero(),
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ClientIPAddr: netutil.IPv4Zero(),
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},
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resp: &dhcpv4.DHCPv4{
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Options: dhcpv4.OptionsFromList(
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dhcpv4.OptMessageType(dhcpv4.MessageTypeOffer),
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),
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},
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}}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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s.send(cloneUDPAddr(defaultPeer), conn, tc.req, tc.resp)
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assert.EqualValues(t, tc.resp.ToBytes(), b.Bytes())
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assert.Equal(t, &net.UDPAddr{
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IP: s.conf.broadcastIP,
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Port: defaultPeer.Port,
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Zone: defaultPeer.Zone,
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}, peer)
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})
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b.Reset()
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peer = nil
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}
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}
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