419 lines
10 KiB
Go
419 lines
10 KiB
Go
package home
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import (
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"net"
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"net/netip"
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"runtime"
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"testing"
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"time"
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"github.com/AdguardTeam/AdGuardHome/internal/client"
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"github.com/AdguardTeam/AdGuardHome/internal/dhcpd"
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"github.com/AdguardTeam/AdGuardHome/internal/dhcpsvc"
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"github.com/AdguardTeam/AdGuardHome/internal/filtering"
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"github.com/AdguardTeam/AdGuardHome/internal/whois"
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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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type testDHCP struct {
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OnLeases func() (leases []*dhcpsvc.Lease)
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OnHostBy func(ip netip.Addr) (host string)
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OnMACBy func(ip netip.Addr) (mac net.HardwareAddr)
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}
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// Lease implements the [DHCP] interface for testDHCP.
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func (t *testDHCP) Leases() (leases []*dhcpsvc.Lease) { return t.OnLeases() }
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// HostByIP implements the [DHCP] interface for testDHCP.
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func (t *testDHCP) HostByIP(ip netip.Addr) (host string) { return t.OnHostBy(ip) }
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// MACByIP implements the [DHCP] interface for testDHCP.
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func (t *testDHCP) MACByIP(ip netip.Addr) (mac net.HardwareAddr) { return t.OnMACBy(ip) }
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// newClientsContainer is a helper that creates a new clients container for
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// tests.
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func newClientsContainer(t *testing.T) (c *clientsContainer) {
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t.Helper()
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c = &clientsContainer{
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testing: true,
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}
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dhcp := &testDHCP{
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OnLeases: func() (leases []*dhcpsvc.Lease) { return nil },
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OnHostBy: func(ip netip.Addr) (host string) { return "" },
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OnMACBy: func(ip netip.Addr) (mac net.HardwareAddr) { return nil },
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}
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require.NoError(t, c.Init(nil, dhcp, nil, nil, &filtering.Config{}))
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return c
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}
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// addHost adds a new IP-hostname pairing.
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func (clients *clientsContainer) addHost(
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ip netip.Addr,
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host string,
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src client.Source,
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) (ok bool) {
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rc := client.NewRuntime(ip)
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rc.SetInfo(src, []string{host})
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clients.storage.UpdateRuntime(rc)
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return true
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}
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// setWHOISInfo sets the WHOIS information for a client.
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func (clients *clientsContainer) setWHOISInfo(ip netip.Addr, wi *whois.Info) {
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_, ok := clients.storage.Find(ip.String())
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if ok {
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return
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}
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rc := client.NewRuntime(ip)
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rc.SetWHOIS(wi)
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clients.storage.UpdateRuntime(rc)
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}
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// clientSource checks if client with this IP address already exists and returns
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// the highest priority client source.
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func (clients *clientsContainer) clientSource(ip netip.Addr) (src client.Source) {
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_, ok := clients.storage.Find(ip.String())
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if ok {
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return client.SourcePersistent
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}
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rc := clients.storage.ClientRuntime(ip)
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if rc != nil {
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src, _ = rc.Info()
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}
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return src
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}
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func TestClients(t *testing.T) {
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clients := newClientsContainer(t)
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t.Run("add_success", func(t *testing.T) {
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var (
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cliNone = "1.2.3.4"
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cli1 = "1.1.1.1"
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cli2 = "2.2.2.2"
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cli1IP = netip.MustParseAddr(cli1)
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cli2IP = netip.MustParseAddr(cli2)
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cliIPv6 = netip.MustParseAddr("1:2:3::4")
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)
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c := &client.Persistent{
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Name: "client1",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{cli1IP, cliIPv6},
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}
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err := clients.storage.Add(c)
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require.NoError(t, err)
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c = &client.Persistent{
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Name: "client2",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{cli2IP},
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}
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err = clients.storage.Add(c)
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require.NoError(t, err)
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c, ok := clients.storage.Find(cli1)
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require.True(t, ok)
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assert.Equal(t, "client1", c.Name)
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c, ok = clients.storage.Find("1:2:3::4")
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require.True(t, ok)
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assert.Equal(t, "client1", c.Name)
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c, ok = clients.storage.Find(cli2)
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require.True(t, ok)
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assert.Equal(t, "client2", c.Name)
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_, ok = clients.storage.Find(cliNone)
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assert.False(t, ok)
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assert.Equal(t, clients.clientSource(cli1IP), client.SourcePersistent)
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assert.Equal(t, clients.clientSource(cli2IP), client.SourcePersistent)
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})
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t.Run("add_fail_name", func(t *testing.T) {
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err := clients.storage.Add(&client.Persistent{
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Name: "client1",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{netip.MustParseAddr("1.2.3.5")},
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})
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require.Error(t, err)
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})
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t.Run("add_fail_ip", func(t *testing.T) {
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err := clients.storage.Add(&client.Persistent{
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Name: "client3",
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UID: client.MustNewUID(),
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})
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require.Error(t, err)
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})
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t.Run("update_fail_ip", func(t *testing.T) {
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err := clients.storage.Update("client1", &client.Persistent{
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Name: "client1",
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UID: client.MustNewUID(),
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})
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assert.Error(t, err)
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})
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t.Run("update_success", func(t *testing.T) {
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var (
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cliOld = "1.1.1.1"
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cliNew = "1.1.1.2"
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cliNewIP = netip.MustParseAddr(cliNew)
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)
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prev, ok := clients.storage.FindByName("client1")
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require.True(t, ok)
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require.NotNil(t, prev)
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err := clients.storage.Update("client1", &client.Persistent{
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Name: "client1",
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UID: prev.UID,
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IPs: []netip.Addr{cliNewIP},
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})
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require.NoError(t, err)
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_, ok = clients.storage.Find(cliOld)
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assert.False(t, ok)
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assert.Equal(t, clients.clientSource(cliNewIP), client.SourcePersistent)
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prev, ok = clients.storage.FindByName("client1")
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require.True(t, ok)
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require.NotNil(t, prev)
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err = clients.storage.Update("client1", &client.Persistent{
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Name: "client1-renamed",
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UID: prev.UID,
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IPs: []netip.Addr{cliNewIP},
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UseOwnSettings: true,
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})
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require.NoError(t, err)
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c, ok := clients.storage.Find(cliNew)
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require.True(t, ok)
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assert.Equal(t, "client1-renamed", c.Name)
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assert.True(t, c.UseOwnSettings)
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nilCli, ok := clients.storage.FindByName("client1")
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require.False(t, ok)
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assert.Nil(t, nilCli)
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require.Len(t, c.IDs(), 1)
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assert.Equal(t, cliNewIP, c.IPs[0])
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})
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t.Run("del_success", func(t *testing.T) {
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ok := clients.storage.RemoveByName("client1-renamed")
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require.True(t, ok)
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_, ok = clients.storage.Find("1.1.1.2")
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assert.False(t, ok)
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})
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t.Run("del_fail", func(t *testing.T) {
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ok := clients.storage.RemoveByName("client3")
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assert.False(t, ok)
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})
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t.Run("addhost_success", func(t *testing.T) {
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ip := netip.MustParseAddr("1.1.1.1")
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ok := clients.addHost(ip, "host", client.SourceARP)
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assert.True(t, ok)
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ok = clients.addHost(ip, "host2", client.SourceARP)
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assert.True(t, ok)
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ok = clients.addHost(ip, "host3", client.SourceHostsFile)
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assert.True(t, ok)
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assert.Equal(t, clients.clientSource(ip), client.SourceHostsFile)
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})
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t.Run("dhcp_replaces_arp", func(t *testing.T) {
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ip := netip.MustParseAddr("1.2.3.4")
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ok := clients.addHost(ip, "from_arp", client.SourceARP)
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assert.True(t, ok)
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assert.Equal(t, clients.clientSource(ip), client.SourceARP)
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ok = clients.addHost(ip, "from_dhcp", client.SourceDHCP)
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assert.True(t, ok)
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assert.Equal(t, clients.clientSource(ip), client.SourceDHCP)
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})
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t.Run("addhost_priority", func(t *testing.T) {
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ip := netip.MustParseAddr("1.1.1.1")
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ok := clients.addHost(ip, "host1", client.SourceRDNS)
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assert.True(t, ok)
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assert.Equal(t, client.SourceHostsFile, clients.clientSource(ip))
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})
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}
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func TestClientsWHOIS(t *testing.T) {
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clients := newClientsContainer(t)
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whois := &whois.Info{
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Country: "AU",
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Orgname: "Example Org",
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}
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t.Run("new_client", func(t *testing.T) {
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ip := netip.MustParseAddr("1.1.1.255")
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clients.setWHOISInfo(ip, whois)
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rc := clients.storage.ClientRuntime(ip)
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require.NotNil(t, rc)
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assert.Equal(t, whois, rc.WHOIS())
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})
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t.Run("existing_auto-client", func(t *testing.T) {
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ip := netip.MustParseAddr("1.1.1.1")
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ok := clients.addHost(ip, "host", client.SourceRDNS)
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assert.True(t, ok)
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clients.setWHOISInfo(ip, whois)
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rc := clients.storage.ClientRuntime(ip)
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require.NotNil(t, rc)
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assert.Equal(t, whois, rc.WHOIS())
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})
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t.Run("can't_set_manually-added", func(t *testing.T) {
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ip := netip.MustParseAddr("1.1.1.2")
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err := clients.storage.Add(&client.Persistent{
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Name: "client1",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{netip.MustParseAddr("1.1.1.2")},
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})
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require.NoError(t, err)
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clients.setWHOISInfo(ip, whois)
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rc := clients.storage.ClientRuntime(ip)
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require.Nil(t, rc)
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assert.True(t, clients.storage.RemoveByName("client1"))
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})
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}
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func TestClientsAddExisting(t *testing.T) {
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clients := &clientsContainer{
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testing: true,
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}
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// First, init a DHCP server with a single static lease.
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config := &dhcpd.ServerConfig{
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Enabled: true,
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DataDir: t.TempDir(),
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Conf4: dhcpd.V4ServerConf{
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Enabled: true,
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GatewayIP: netip.MustParseAddr("1.2.3.1"),
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SubnetMask: netip.MustParseAddr("255.255.255.0"),
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RangeStart: netip.MustParseAddr("1.2.3.2"),
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RangeEnd: netip.MustParseAddr("1.2.3.10"),
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},
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}
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dhcpServer, err := dhcpd.Create(config)
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require.NoError(t, err)
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require.NoError(t, clients.Init(nil, dhcpServer, nil, nil, &filtering.Config{}))
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t.Run("simple", func(t *testing.T) {
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ip := netip.MustParseAddr("1.1.1.1")
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// Add a client.
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err = clients.storage.Add(&client.Persistent{
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Name: "client1",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{ip, netip.MustParseAddr("1:2:3::4")},
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Subnets: []netip.Prefix{netip.MustParsePrefix("2.2.2.0/24")},
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MACs: []net.HardwareAddr{{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}},
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})
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require.NoError(t, err)
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// Now add an auto-client with the same IP.
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ok := clients.addHost(ip, "test", client.SourceRDNS)
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assert.True(t, ok)
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})
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t.Run("complicated", func(t *testing.T) {
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// TODO(a.garipov): Properly decouple the DHCP server from the client
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// storage.
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if runtime.GOOS == "windows" {
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t.Skip("skipping dhcp test on windows")
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}
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ip := netip.MustParseAddr("1.2.3.4")
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err = dhcpServer.AddStaticLease(&dhcpsvc.Lease{
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HWAddr: net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
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IP: ip,
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Hostname: "testhost",
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Expiry: time.Now().Add(time.Hour),
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})
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require.NoError(t, err)
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// Add a new client with the same IP as for a client with MAC.
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err = clients.storage.Add(&client.Persistent{
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Name: "client2",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{ip},
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})
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require.NoError(t, err)
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// Add a new client with the IP from the first client's IP range.
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err = clients.storage.Add(&client.Persistent{
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Name: "client3",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{netip.MustParseAddr("2.2.2.2")},
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})
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require.NoError(t, err)
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})
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}
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func TestClientsCustomUpstream(t *testing.T) {
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clients := newClientsContainer(t)
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// Add client with upstreams.
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err := clients.storage.Add(&client.Persistent{
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Name: "client1",
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UID: client.MustNewUID(),
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IPs: []netip.Addr{netip.MustParseAddr("1.1.1.1"), netip.MustParseAddr("1:2:3::4")},
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Upstreams: []string{
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"1.1.1.1",
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"[/example.org/]8.8.8.8",
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},
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})
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require.NoError(t, err)
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upsConf, err := clients.UpstreamConfigByID("1.2.3.4", net.DefaultResolver)
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assert.Nil(t, upsConf)
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assert.NoError(t, err)
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upsConf, err = clients.UpstreamConfigByID("1.1.1.1", net.DefaultResolver)
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require.NotNil(t, upsConf)
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assert.NoError(t, err)
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}
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