153 lines
3.5 KiB
Go
153 lines
3.5 KiB
Go
package portmapper
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import (
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"net"
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"testing"
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"github.com/docker/docker/daemon/networkdriver/portallocator"
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"github.com/docker/docker/pkg/iptables"
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)
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func init() {
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// override this func to mock out the proxy server
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NewProxy = NewMockProxyCommand
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}
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func reset() {
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chain = nil
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currentMappings = make(map[string]*mapping)
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}
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func TestSetIptablesChain(t *testing.T) {
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defer reset()
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c := &iptables.Chain{
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Name: "TEST",
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Bridge: "192.168.1.1",
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}
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if chain != nil {
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t.Fatal("chain should be nil at init")
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}
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SetIptablesChain(c)
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if chain == nil {
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t.Fatal("chain should not be nil after set")
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}
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}
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func TestMapPorts(t *testing.T) {
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dstIp1 := net.ParseIP("192.168.0.1")
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dstIp2 := net.ParseIP("192.168.0.2")
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dstAddr1 := &net.TCPAddr{IP: dstIp1, Port: 80}
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dstAddr2 := &net.TCPAddr{IP: dstIp2, Port: 80}
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srcAddr1 := &net.TCPAddr{Port: 1080, IP: net.ParseIP("172.16.0.1")}
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srcAddr2 := &net.TCPAddr{Port: 1080, IP: net.ParseIP("172.16.0.2")}
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addrEqual := func(addr1, addr2 net.Addr) bool {
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return (addr1.Network() == addr2.Network()) && (addr1.String() == addr2.String())
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}
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if host, err := Map(srcAddr1, dstIp1, 80); err != nil {
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t.Fatalf("Failed to allocate port: %s", err)
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} else if !addrEqual(dstAddr1, host) {
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t.Fatalf("Incorrect mapping result: expected %s:%s, got %s:%s",
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dstAddr1.String(), dstAddr1.Network(), host.String(), host.Network())
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}
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if _, err := Map(srcAddr1, dstIp1, 80); err == nil {
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t.Fatalf("Port is in use - mapping should have failed")
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}
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if _, err := Map(srcAddr2, dstIp1, 80); err == nil {
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t.Fatalf("Port is in use - mapping should have failed")
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}
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if _, err := Map(srcAddr2, dstIp2, 80); err != nil {
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t.Fatalf("Failed to allocate port: %s", err)
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}
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if Unmap(dstAddr1) != nil {
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t.Fatalf("Failed to release port")
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}
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if Unmap(dstAddr2) != nil {
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t.Fatalf("Failed to release port")
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}
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if Unmap(dstAddr2) == nil {
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t.Fatalf("Port already released, but no error reported")
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}
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}
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func TestGetUDPKey(t *testing.T) {
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addr := &net.UDPAddr{IP: net.ParseIP("192.168.1.5"), Port: 53}
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key := getKey(addr)
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if expected := "192.168.1.5:53/udp"; key != expected {
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t.Fatalf("expected key %s got %s", expected, key)
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}
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}
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func TestGetTCPKey(t *testing.T) {
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addr := &net.TCPAddr{IP: net.ParseIP("192.168.1.5"), Port: 80}
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key := getKey(addr)
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if expected := "192.168.1.5:80/tcp"; key != expected {
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t.Fatalf("expected key %s got %s", expected, key)
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}
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}
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func TestGetUDPIPAndPort(t *testing.T) {
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addr := &net.UDPAddr{IP: net.ParseIP("192.168.1.5"), Port: 53}
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ip, port := getIPAndPort(addr)
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if expected := "192.168.1.5"; ip.String() != expected {
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t.Fatalf("expected ip %s got %s", expected, ip)
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}
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if ep := 53; port != ep {
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t.Fatalf("expected port %d got %d", ep, port)
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}
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}
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func TestMapAllPortsSingleInterface(t *testing.T) {
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dstIp1 := net.ParseIP("0.0.0.0")
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srcAddr1 := &net.TCPAddr{Port: 1080, IP: net.ParseIP("172.16.0.1")}
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hosts := []net.Addr{}
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var host net.Addr
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var err error
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defer func() {
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for _, val := range hosts {
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Unmap(val)
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}
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}()
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for i := 0; i < 10; i++ {
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for i := portallocator.BeginPortRange; i < portallocator.EndPortRange; i++ {
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if host, err = Map(srcAddr1, dstIp1, 0); err != nil {
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t.Fatal(err)
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}
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hosts = append(hosts, host)
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}
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if _, err := Map(srcAddr1, dstIp1, portallocator.BeginPortRange); err == nil {
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t.Fatalf("Port %d should be bound but is not", portallocator.BeginPortRange)
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}
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for _, val := range hosts {
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if err := Unmap(val); err != nil {
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t.Fatal(err)
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}
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}
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hosts = []net.Addr{}
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}
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}
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