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327 lines
7.6 KiB
327 lines
7.6 KiB
package dns_test
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import (
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"runtime"
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"testing"
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"time"
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"v2ray.com/core"
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"v2ray.com/core/app/dispatcher"
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. "v2ray.com/core/app/dns"
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"v2ray.com/core/app/policy"
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"v2ray.com/core/app/proxyman"
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_ "v2ray.com/core/app/proxyman/outbound"
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"v2ray.com/core/common"
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"v2ray.com/core/common/net"
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"v2ray.com/core/common/serial"
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feature_dns "v2ray.com/core/features/dns"
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"v2ray.com/core/proxy/freedom"
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"v2ray.com/core/testing/servers/udp"
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. "v2ray.com/ext/assert"
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"github.com/miekg/dns"
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)
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type staticHandler struct {
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}
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func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
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ans := new(dns.Msg)
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ans.Id = r.Id
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var clientIP net.IP
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opt := r.IsEdns0()
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if opt != nil {
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for _, o := range opt.Option {
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if o.Option() == dns.EDNS0SUBNET {
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subnet := o.(*dns.EDNS0_SUBNET)
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clientIP = subnet.Address
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}
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}
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}
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for _, q := range r.Question {
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if q.Name == "google.com." && q.Qtype == dns.TypeA {
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if clientIP == nil {
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rr, _ := dns.NewRR("google.com. IN A 8.8.8.8")
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ans.Answer = append(ans.Answer, rr)
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} else {
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rr, _ := dns.NewRR("google.com. IN A 8.8.4.4")
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ans.Answer = append(ans.Answer, rr)
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}
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} else if q.Name == "facebook.com." && q.Qtype == dns.TypeA {
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rr, _ := dns.NewRR("facebook.com. IN A 9.9.9.9")
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ans.Answer = append(ans.Answer, rr)
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} else if q.Name == "ipv6.google.com." && q.Qtype == dns.TypeA {
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rr, err := dns.NewRR("ipv6.google.com. IN A 8.8.8.7")
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common.Must(err)
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ans.Answer = append(ans.Answer, rr)
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} else if q.Name == "ipv6.google.com." && q.Qtype == dns.TypeAAAA {
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rr, err := dns.NewRR("ipv6.google.com. IN AAAA 2001:4860:4860::8888")
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common.Must(err)
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ans.Answer = append(ans.Answer, rr)
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}
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}
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w.WriteMsg(ans)
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}
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func TestUDPServerSubnet(t *testing.T) {
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if runtime.GOOS == "windows" {
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t.Skip("doesn't work on Windows due to miekg/dns changes.")
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}
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assert := With(t)
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port := udp.PickPort()
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dnsServer := dns.Server{
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Addr: "127.0.0.1:" + port.String(),
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Net: "udp",
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Handler: &staticHandler{},
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UDPSize: 1200,
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}
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go dnsServer.ListenAndServe()
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time.Sleep(time.Second)
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config := &core.Config{
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App: []*serial.TypedMessage{
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serial.ToTypedMessage(&Config{
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NameServers: []*net.Endpoint{
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{
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Network: net.Network_UDP,
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Address: &net.IPOrDomain{
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Address: &net.IPOrDomain_Ip{
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Ip: []byte{127, 0, 0, 1},
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},
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},
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Port: uint32(port),
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},
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},
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ClientIp: []byte{7, 8, 9, 10},
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}),
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serial.ToTypedMessage(&dispatcher.Config{}),
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serial.ToTypedMessage(&proxyman.OutboundConfig{}),
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serial.ToTypedMessage(&policy.Config{}),
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},
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Outbound: []*core.OutboundHandlerConfig{
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{
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ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
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},
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},
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}
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v, err := core.New(config)
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assert(err, IsNil)
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client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
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ips, err := client.LookupIP("google.com")
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assert(err, IsNil)
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assert(len(ips), Equals, 1)
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assert([]byte(ips[0]), Equals, []byte{8, 8, 4, 4})
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}
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func TestUDPServer(t *testing.T) {
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if runtime.GOOS == "windows" {
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t.Skip("doesn't work on Windows due to miekg/dns changes.")
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}
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assert := With(t)
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port := udp.PickPort()
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dnsServer := dns.Server{
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Addr: "127.0.0.1:" + port.String(),
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Net: "udp",
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Handler: &staticHandler{},
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UDPSize: 1200,
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}
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go dnsServer.ListenAndServe()
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time.Sleep(time.Second)
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config := &core.Config{
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App: []*serial.TypedMessage{
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serial.ToTypedMessage(&Config{
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NameServers: []*net.Endpoint{
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{
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Network: net.Network_UDP,
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Address: &net.IPOrDomain{
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Address: &net.IPOrDomain_Ip{
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Ip: []byte{127, 0, 0, 1},
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},
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},
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Port: uint32(port),
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},
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},
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}),
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serial.ToTypedMessage(&dispatcher.Config{}),
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serial.ToTypedMessage(&proxyman.OutboundConfig{}),
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serial.ToTypedMessage(&policy.Config{}),
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},
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Outbound: []*core.OutboundHandlerConfig{
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{
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ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
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},
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},
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}
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v, err := core.New(config)
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assert(err, IsNil)
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client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
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ips, err := client.LookupIP("google.com")
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assert(err, IsNil)
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assert(len(ips), Equals, 1)
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assert([]byte(ips[0]), Equals, []byte{8, 8, 8, 8})
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ips, err = client.LookupIP("facebook.com")
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assert(err, IsNil)
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assert(len(ips), Equals, 1)
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assert([]byte(ips[0]), Equals, []byte{9, 9, 9, 9})
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dnsServer.Shutdown()
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ips, err = client.LookupIP("google.com")
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assert(err, IsNil)
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assert(len(ips), Equals, 1)
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assert([]byte(ips[0]), Equals, []byte{8, 8, 8, 8})
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}
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func TestPrioritizedDomain(t *testing.T) {
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if runtime.GOOS == "windows" {
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t.Skip("doesn't work on Windows due to miekg/dns changes.")
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}
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assert := With(t)
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port := udp.PickPort()
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dnsServer := dns.Server{
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Addr: "127.0.0.1:" + port.String(),
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Net: "udp",
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Handler: &staticHandler{},
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UDPSize: 1200,
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}
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go dnsServer.ListenAndServe()
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time.Sleep(time.Second)
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config := &core.Config{
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App: []*serial.TypedMessage{
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serial.ToTypedMessage(&Config{
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NameServers: []*net.Endpoint{
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{
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Network: net.Network_UDP,
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Address: &net.IPOrDomain{
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Address: &net.IPOrDomain_Ip{
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Ip: []byte{127, 0, 0, 1},
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},
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},
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Port: 9999, /* unreachable */
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},
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},
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NameServer: []*NameServer{
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{
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Address: &net.Endpoint{
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Network: net.Network_UDP,
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Address: &net.IPOrDomain{
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Address: &net.IPOrDomain_Ip{
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Ip: []byte{127, 0, 0, 1},
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},
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},
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Port: uint32(port),
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},
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PrioritizedDomain: []*NameServer_PriorityDomain{
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{
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Type: DomainMatchingType_Full,
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Domain: "google.com",
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},
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},
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},
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},
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}),
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serial.ToTypedMessage(&dispatcher.Config{}),
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serial.ToTypedMessage(&proxyman.OutboundConfig{}),
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serial.ToTypedMessage(&policy.Config{}),
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},
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Outbound: []*core.OutboundHandlerConfig{
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{
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ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
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},
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},
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}
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v, err := core.New(config)
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assert(err, IsNil)
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client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
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startTime := time.Now()
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ips, err := client.LookupIP("google.com")
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assert(err, IsNil)
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assert(len(ips), Equals, 1)
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assert([]byte(ips[0]), Equals, []byte{8, 8, 8, 8})
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endTime := time.Now()
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if startTime.After(endTime.Add(time.Second * 2)) {
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t.Error("DNS query doesn't finish in 2 seconds.")
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}
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}
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func TestUDPServerIPv6(t *testing.T) {
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if runtime.GOOS == "windows" {
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t.Skip("doesn't work on Windows due to miekg/dns changes.")
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}
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assert := With(t)
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port := udp.PickPort()
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dnsServer := dns.Server{
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Addr: "127.0.0.1:" + port.String(),
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Net: "udp",
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Handler: &staticHandler{},
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UDPSize: 1200,
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}
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go dnsServer.ListenAndServe()
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time.Sleep(time.Second)
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config := &core.Config{
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App: []*serial.TypedMessage{
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serial.ToTypedMessage(&Config{
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NameServers: []*net.Endpoint{
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{
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Network: net.Network_UDP,
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Address: &net.IPOrDomain{
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Address: &net.IPOrDomain_Ip{
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Ip: []byte{127, 0, 0, 1},
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},
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},
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Port: uint32(port),
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},
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},
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}),
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serial.ToTypedMessage(&dispatcher.Config{}),
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serial.ToTypedMessage(&proxyman.OutboundConfig{}),
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serial.ToTypedMessage(&policy.Config{}),
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},
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Outbound: []*core.OutboundHandlerConfig{
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{
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ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
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},
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},
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}
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v, err := core.New(config)
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assert(err, IsNil)
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client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
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client6 := client.(feature_dns.IPv6Lookup)
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ips, err := client6.LookupIPv6("ipv6.google.com")
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assert(err, IsNil)
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assert(len(ips), Equals, 1)
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assert([]byte(ips[0]), Equals, []byte{32, 1, 72, 96, 72, 96, 0, 0, 0, 0, 0, 0, 0, 0, 136, 136})
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}
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