package aghnet import ( "io/fs" "net" "os" "testing" "github.com/AdguardTeam/AdGuardHome/internal/aghtest" "github.com/AdguardTeam/golibs/netutil" "github.com/AdguardTeam/golibs/testutil" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) // testdata is the filesystem containing data for testing the package. var testdata fs.FS = os.DirFS("./testdata") func TestMain(m *testing.M) { aghtest.DiscardLogOutput(m) } func TestGetInterfaceByIP(t *testing.T) { ifaces, err := GetValidNetInterfacesForWeb() require.NoError(t, err) require.NotEmpty(t, ifaces) for _, iface := range ifaces { t.Run(iface.Name, func(t *testing.T) { require.NotEmpty(t, iface.Addresses) for _, ip := range iface.Addresses { ifaceName := GetInterfaceByIP(ip) require.Equal(t, iface.Name, ifaceName) } }) } } func TestBroadcastFromIPNet(t *testing.T) { known6 := net.IP{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, } testCases := []struct { name string subnet *net.IPNet want net.IP }{{ name: "full", subnet: &net.IPNet{ IP: net.IP{192, 168, 0, 1}, Mask: net.IPMask{255, 255, 15, 0}, }, want: net.IP{192, 168, 240, 255}, }, { name: "ipv6_no_mask", subnet: &net.IPNet{ IP: known6, }, want: known6, }, { name: "ipv4_no_mask", subnet: &net.IPNet{ IP: net.IP{192, 168, 1, 2}, }, want: net.IP{192, 168, 1, 255}, }, { name: "unspecified", subnet: &net.IPNet{ IP: net.IP{0, 0, 0, 0}, Mask: net.IPMask{0, 0, 0, 0}, }, want: net.IPv4bcast, }} for _, tc := range testCases { t.Run(tc.name, func(t *testing.T) { bc := BroadcastFromIPNet(tc.subnet) assert.True(t, bc.Equal(tc.want), bc) }) } } func TestCheckPort(t *testing.T) { t.Run("tcp_bound", func(t *testing.T) { l, err := net.Listen("tcp", "127.0.0.1:") require.NoError(t, err) testutil.CleanupAndRequireSuccess(t, l.Close) ipp := netutil.IPPortFromAddr(l.Addr()) require.NotNil(t, ipp) require.NotNil(t, ipp.IP) require.NotZero(t, ipp.Port) err = CheckPort("tcp", ipp.IP, ipp.Port) target := &net.OpError{} require.ErrorAs(t, err, &target) assert.Equal(t, "listen", target.Op) }) t.Run("udp_bound", func(t *testing.T) { conn, err := net.ListenPacket("udp", "127.0.0.1:") require.NoError(t, err) testutil.CleanupAndRequireSuccess(t, conn.Close) ipp := netutil.IPPortFromAddr(conn.LocalAddr()) require.NotNil(t, ipp) require.NotNil(t, ipp.IP) require.NotZero(t, ipp.Port) err = CheckPort("udp", ipp.IP, ipp.Port) target := &net.OpError{} require.ErrorAs(t, err, &target) assert.Equal(t, "listen", target.Op) }) t.Run("bad_network", func(t *testing.T) { err := CheckPort("bad_network", nil, 0) assert.NoError(t, err) }) t.Run("can_bind", func(t *testing.T) { err := CheckPort("udp", net.IP{0, 0, 0, 0}, 0) assert.NoError(t, err) }) }