AdGuardHome/internal/dhcpd/v4_test.go

272 lines
7.3 KiB
Go

// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
package dhcpd
import (
"net"
"testing"
"github.com/insomniacslk/dhcp/dhcpv4"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func notify4(flags uint32) {
}
func TestV4_AddRemove_static(t *testing.T) {
s, err := v4Create(V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
})
require.Nil(t, err)
ls := s.GetLeases(LeasesStatic)
assert.Empty(t, ls)
// Add static lease.
l := Lease{
IP: net.IP{192, 168, 10, 150},
HWAddr: net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}
require.Nil(t, s.AddStaticLease(l))
assert.NotNil(t, s.AddStaticLease(l))
ls = s.GetLeases(LeasesStatic)
require.Len(t, ls, 1)
assert.True(t, l.IP.Equal(ls[0].IP))
assert.Equal(t, l.HWAddr, ls[0].HWAddr)
assert.True(t, ls[0].IsStatic())
// Try to remove static lease.
assert.NotNil(t, s.RemoveStaticLease(Lease{
IP: net.IP{192, 168, 10, 110},
HWAddr: net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}))
// Remove static lease.
require.Nil(t, s.RemoveStaticLease(l))
ls = s.GetLeases(LeasesStatic)
assert.Empty(t, ls)
}
func TestV4_AddReplace(t *testing.T) {
sIface, err := v4Create(V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
})
require.Nil(t, err)
s, ok := sIface.(*v4Server)
require.True(t, ok)
dynLeases := []Lease{{
IP: net.IP{192, 168, 10, 150},
HWAddr: net.HardwareAddr{0x11, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}, {
IP: net.IP{192, 168, 10, 151},
HWAddr: net.HardwareAddr{0x22, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}}
for i := range dynLeases {
err = s.addLease(&dynLeases[i])
require.Nil(t, err)
}
stLeases := []Lease{{
IP: net.IP{192, 168, 10, 150},
HWAddr: net.HardwareAddr{0x33, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}, {
IP: net.IP{192, 168, 10, 152},
HWAddr: net.HardwareAddr{0x22, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}}
for _, l := range stLeases {
require.Nil(t, s.AddStaticLease(l))
}
ls := s.GetLeases(LeasesStatic)
require.Len(t, ls, 2)
for i, l := range ls {
assert.True(t, stLeases[i].IP.Equal(l.IP))
assert.Equal(t, stLeases[i].HWAddr, l.HWAddr)
assert.True(t, l.IsStatic())
}
}
func TestV4StaticLease_Get(t *testing.T) {
var err error
sIface, err := v4Create(V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
})
require.Nil(t, err)
s, ok := sIface.(*v4Server)
require.True(t, ok)
s.conf.dnsIPAddrs = []net.IP{{192, 168, 10, 1}}
l := Lease{
IP: net.IP{192, 168, 10, 150},
HWAddr: net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
}
require.Nil(t, s.AddStaticLease(l))
var req, resp *dhcpv4.DHCPv4
mac := net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}
t.Run("discover", func(t *testing.T) {
var terr error
req, terr = dhcpv4.NewDiscovery(mac)
require.Nil(t, terr)
resp, terr = dhcpv4.NewReplyFromRequest(req)
require.Nil(t, terr)
assert.Equal(t, 1, s.process(req, resp))
})
require.Nil(t, err)
t.Run("offer", func(t *testing.T) {
assert.Equal(t, dhcpv4.MessageTypeOffer, resp.MessageType())
assert.Equal(t, mac, resp.ClientHWAddr)
assert.True(t, l.IP.Equal(resp.YourIPAddr))
assert.True(t, s.conf.GatewayIP.Equal(resp.Router()[0]))
assert.True(t, s.conf.GatewayIP.Equal(resp.ServerIdentifier()))
assert.Equal(t, s.conf.subnetMask, resp.SubnetMask())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
})
t.Run("request", func(t *testing.T) {
req, err = dhcpv4.NewRequestFromOffer(resp)
require.Nil(t, err)
resp, err = dhcpv4.NewReplyFromRequest(req)
require.Nil(t, err)
assert.Equal(t, 1, s.process(req, resp))
})
require.Nil(t, err)
t.Run("ack", func(t *testing.T) {
assert.Equal(t, dhcpv4.MessageTypeAck, resp.MessageType())
assert.Equal(t, mac, resp.ClientHWAddr)
assert.True(t, l.IP.Equal(resp.YourIPAddr))
assert.True(t, s.conf.GatewayIP.Equal(resp.Router()[0]))
assert.True(t, s.conf.GatewayIP.Equal(resp.ServerIdentifier()))
assert.Equal(t, s.conf.subnetMask, resp.SubnetMask())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
})
dnsAddrs := resp.DNS()
require.Len(t, dnsAddrs, 1)
assert.True(t, s.conf.GatewayIP.Equal(dnsAddrs[0]))
t.Run("check_lease", func(t *testing.T) {
ls := s.GetLeases(LeasesStatic)
require.Len(t, ls, 1)
assert.True(t, l.IP.Equal(ls[0].IP))
assert.Equal(t, mac, ls[0].HWAddr)
})
}
func TestV4DynamicLease_Get(t *testing.T) {
var err error
sIface, err := v4Create(V4ServerConf{
Enabled: true,
RangeStart: net.IP{192, 168, 10, 100},
RangeEnd: net.IP{192, 168, 10, 200},
GatewayIP: net.IP{192, 168, 10, 1},
SubnetMask: net.IP{255, 255, 255, 0},
notify: notify4,
Options: []string{
"81 hex 303132",
"82 ip 1.2.3.4",
},
})
require.Nil(t, err)
s, ok := sIface.(*v4Server)
require.True(t, ok)
s.conf.dnsIPAddrs = []net.IP{{192, 168, 10, 1}}
var req, resp *dhcpv4.DHCPv4
mac := net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}
t.Run("discover", func(t *testing.T) {
req, err = dhcpv4.NewDiscovery(mac)
require.Nil(t, err)
resp, err = dhcpv4.NewReplyFromRequest(req)
require.Nil(t, err)
assert.Equal(t, 1, s.process(req, resp))
})
// Don't continue if we got any errors in the previous subtest.
require.Nil(t, err)
t.Run("offer", func(t *testing.T) {
assert.Equal(t, dhcpv4.MessageTypeOffer, resp.MessageType())
assert.Equal(t, mac, resp.ClientHWAddr)
assert.Equal(t, s.conf.RangeStart, resp.YourIPAddr)
assert.Equal(t, s.conf.GatewayIP, resp.ServerIdentifier())
router := resp.Router()
require.Len(t, router, 1)
assert.Equal(t, s.conf.GatewayIP, router[0])
assert.Equal(t, s.conf.subnetMask, resp.SubnetMask())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
assert.Equal(t, []byte("012"), resp.Options[uint8(dhcpv4.OptionFQDN)])
assert.Equal(t, net.IP{1, 2, 3, 4}, net.IP(resp.RelayAgentInfo().ToBytes()))
})
t.Run("request", func(t *testing.T) {
var terr error
req, terr = dhcpv4.NewRequestFromOffer(resp)
require.Nil(t, terr)
resp, terr = dhcpv4.NewReplyFromRequest(req)
require.Nil(t, terr)
assert.Equal(t, 1, s.process(req, resp))
})
require.Nil(t, err)
t.Run("ack", func(t *testing.T) {
assert.Equal(t, dhcpv4.MessageTypeAck, resp.MessageType())
assert.Equal(t, mac, resp.ClientHWAddr)
assert.True(t, s.conf.RangeStart.Equal(resp.YourIPAddr))
assert.True(t, s.conf.GatewayIP.Equal(resp.Router()[0]))
assert.True(t, s.conf.GatewayIP.Equal(resp.ServerIdentifier()))
assert.Equal(t, s.conf.subnetMask, resp.SubnetMask())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
})
dnsAddrs := resp.DNS()
require.Len(t, dnsAddrs, 1)
assert.True(t, net.IP{192, 168, 10, 1}.Equal(dnsAddrs[0]))
// check lease
t.Run("check_lease", func(t *testing.T) {
ls := s.GetLeases(LeasesDynamic)
assert.Len(t, ls, 1)
assert.True(t, net.IP{192, 168, 10, 100}.Equal(ls[0].IP))
assert.Equal(t, mac, ls[0].HWAddr)
})
}