mirror of https://github.com/v2fly/v2ray-core.git
371 lines
9.1 KiB
Go
371 lines
9.1 KiB
Go
package dns_test
|
|
|
|
import (
|
|
"google.golang.org/protobuf/types/known/anypb"
|
|
"strconv"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/google/go-cmp/cmp"
|
|
"github.com/miekg/dns"
|
|
|
|
core "github.com/v2fly/v2ray-core/v4"
|
|
"github.com/v2fly/v2ray-core/v4/app/dispatcher"
|
|
dnsapp "github.com/v2fly/v2ray-core/v4/app/dns"
|
|
"github.com/v2fly/v2ray-core/v4/app/policy"
|
|
"github.com/v2fly/v2ray-core/v4/app/proxyman"
|
|
_ "github.com/v2fly/v2ray-core/v4/app/proxyman/inbound"
|
|
_ "github.com/v2fly/v2ray-core/v4/app/proxyman/outbound"
|
|
"github.com/v2fly/v2ray-core/v4/common"
|
|
"github.com/v2fly/v2ray-core/v4/common/net"
|
|
"github.com/v2fly/v2ray-core/v4/common/serial"
|
|
dns_proxy "github.com/v2fly/v2ray-core/v4/proxy/dns"
|
|
"github.com/v2fly/v2ray-core/v4/proxy/dokodemo"
|
|
"github.com/v2fly/v2ray-core/v4/testing/servers/tcp"
|
|
"github.com/v2fly/v2ray-core/v4/testing/servers/udp"
|
|
)
|
|
|
|
type staticHandler struct{}
|
|
|
|
func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
|
|
ans := new(dns.Msg)
|
|
ans.Id = r.Id
|
|
|
|
var clientIP net.IP
|
|
|
|
opt := r.IsEdns0()
|
|
if opt != nil {
|
|
for _, o := range opt.Option {
|
|
if o.Option() == dns.EDNS0SUBNET {
|
|
subnet := o.(*dns.EDNS0_SUBNET)
|
|
clientIP = subnet.Address
|
|
}
|
|
}
|
|
}
|
|
|
|
for _, q := range r.Question {
|
|
switch {
|
|
case q.Name == "google.com." && q.Qtype == dns.TypeA:
|
|
if clientIP == nil {
|
|
rr, _ := dns.NewRR("google.com. IN A 8.8.8.8")
|
|
ans.Answer = append(ans.Answer, rr)
|
|
} else {
|
|
rr, _ := dns.NewRR("google.com. IN A 8.8.4.4")
|
|
ans.Answer = append(ans.Answer, rr)
|
|
}
|
|
|
|
case q.Name == "facebook.com." && q.Qtype == dns.TypeA:
|
|
rr, _ := dns.NewRR("facebook.com. IN A 9.9.9.9")
|
|
ans.Answer = append(ans.Answer, rr)
|
|
|
|
case q.Name == "ipv6.google.com." && q.Qtype == dns.TypeA:
|
|
rr, err := dns.NewRR("ipv6.google.com. IN A 8.8.8.7")
|
|
common.Must(err)
|
|
ans.Answer = append(ans.Answer, rr)
|
|
|
|
case q.Name == "ipv6.google.com." && q.Qtype == dns.TypeAAAA:
|
|
rr, err := dns.NewRR("ipv6.google.com. IN AAAA 2001:4860:4860::8888")
|
|
common.Must(err)
|
|
ans.Answer = append(ans.Answer, rr)
|
|
|
|
case q.Name == "notexist.google.com." && q.Qtype == dns.TypeAAAA:
|
|
ans.MsgHdr.Rcode = dns.RcodeNameError
|
|
}
|
|
}
|
|
w.WriteMsg(ans)
|
|
}
|
|
|
|
func TestUDPDNSTunnel(t *testing.T) {
|
|
port := udp.PickPort()
|
|
|
|
dnsServer := dns.Server{
|
|
Addr: "127.0.0.1:" + port.String(),
|
|
Net: "udp",
|
|
Handler: &staticHandler{},
|
|
UDPSize: 1200,
|
|
}
|
|
defer dnsServer.Shutdown()
|
|
|
|
go dnsServer.ListenAndServe()
|
|
time.Sleep(time.Second)
|
|
|
|
serverPort := udp.PickPort()
|
|
config := &core.Config{
|
|
App: []*anypb.Any{
|
|
serial.ToTypedMessage(&dnsapp.Config{
|
|
NameServers: []*net.Endpoint{
|
|
{
|
|
Network: net.Network_UDP,
|
|
Address: &net.IPOrDomain{
|
|
Address: &net.IPOrDomain_Ip{
|
|
Ip: []byte{127, 0, 0, 1},
|
|
},
|
|
},
|
|
Port: uint32(port),
|
|
},
|
|
},
|
|
}),
|
|
serial.ToTypedMessage(&dispatcher.Config{}),
|
|
serial.ToTypedMessage(&proxyman.OutboundConfig{}),
|
|
serial.ToTypedMessage(&proxyman.InboundConfig{}),
|
|
serial.ToTypedMessage(&policy.Config{}),
|
|
},
|
|
Inbound: []*core.InboundHandlerConfig{
|
|
{
|
|
ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
|
|
Address: net.NewIPOrDomain(net.LocalHostIP),
|
|
Port: uint32(port),
|
|
Networks: []net.Network{net.Network_UDP},
|
|
}),
|
|
ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
|
|
PortRange: net.SinglePortRange(serverPort),
|
|
Listen: net.NewIPOrDomain(net.LocalHostIP),
|
|
}),
|
|
},
|
|
},
|
|
Outbound: []*core.OutboundHandlerConfig{
|
|
{
|
|
ProxySettings: serial.ToTypedMessage(&dns_proxy.Config{}),
|
|
},
|
|
},
|
|
}
|
|
|
|
v, err := core.New(config)
|
|
common.Must(err)
|
|
common.Must(v.Start())
|
|
defer v.Close()
|
|
|
|
{
|
|
m1 := new(dns.Msg)
|
|
m1.Id = dns.Id()
|
|
m1.RecursionDesired = true
|
|
m1.Question = make([]dns.Question, 1)
|
|
m1.Question[0] = dns.Question{Name: "google.com.", Qtype: dns.TypeA, Qclass: dns.ClassINET}
|
|
|
|
c := new(dns.Client)
|
|
in, _, err := c.Exchange(m1, "127.0.0.1:"+strconv.Itoa(int(serverPort)))
|
|
common.Must(err)
|
|
|
|
if len(in.Answer) != 1 {
|
|
t.Fatal("len(answer): ", len(in.Answer))
|
|
}
|
|
|
|
rr, ok := in.Answer[0].(*dns.A)
|
|
if !ok {
|
|
t.Fatal("not A record")
|
|
}
|
|
if r := cmp.Diff(rr.A[:], net.IP{8, 8, 8, 8}); r != "" {
|
|
t.Error(r)
|
|
}
|
|
}
|
|
|
|
{
|
|
m1 := new(dns.Msg)
|
|
m1.Id = dns.Id()
|
|
m1.RecursionDesired = true
|
|
m1.Question = make([]dns.Question, 1)
|
|
m1.Question[0] = dns.Question{Name: "ipv4only.google.com.", Qtype: dns.TypeAAAA, Qclass: dns.ClassINET}
|
|
|
|
c := new(dns.Client)
|
|
c.Timeout = 10 * time.Second
|
|
in, _, err := c.Exchange(m1, "127.0.0.1:"+strconv.Itoa(int(serverPort)))
|
|
common.Must(err)
|
|
|
|
if len(in.Answer) != 0 {
|
|
t.Fatal("len(answer): ", len(in.Answer))
|
|
}
|
|
}
|
|
|
|
{
|
|
m1 := new(dns.Msg)
|
|
m1.Id = dns.Id()
|
|
m1.RecursionDesired = true
|
|
m1.Question = make([]dns.Question, 1)
|
|
m1.Question[0] = dns.Question{Name: "notexist.google.com.", Qtype: dns.TypeAAAA, Qclass: dns.ClassINET}
|
|
|
|
c := new(dns.Client)
|
|
in, _, err := c.Exchange(m1, "127.0.0.1:"+strconv.Itoa(int(serverPort)))
|
|
common.Must(err)
|
|
|
|
if in.Rcode != dns.RcodeNameError {
|
|
t.Error("expected NameError, but got ", in.Rcode)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestTCPDNSTunnel(t *testing.T) {
|
|
port := udp.PickPort()
|
|
|
|
dnsServer := dns.Server{
|
|
Addr: "127.0.0.1:" + port.String(),
|
|
Net: "udp",
|
|
Handler: &staticHandler{},
|
|
}
|
|
defer dnsServer.Shutdown()
|
|
|
|
go dnsServer.ListenAndServe()
|
|
time.Sleep(time.Second)
|
|
|
|
serverPort := tcp.PickPort()
|
|
config := &core.Config{
|
|
App: []*anypb.Any{
|
|
serial.ToTypedMessage(&dnsapp.Config{
|
|
NameServer: []*dnsapp.NameServer{
|
|
{
|
|
Address: &net.Endpoint{
|
|
Network: net.Network_UDP,
|
|
Address: &net.IPOrDomain{
|
|
Address: &net.IPOrDomain_Ip{
|
|
Ip: []byte{127, 0, 0, 1},
|
|
},
|
|
},
|
|
Port: uint32(port),
|
|
},
|
|
},
|
|
},
|
|
}),
|
|
serial.ToTypedMessage(&dispatcher.Config{}),
|
|
serial.ToTypedMessage(&proxyman.OutboundConfig{}),
|
|
serial.ToTypedMessage(&proxyman.InboundConfig{}),
|
|
serial.ToTypedMessage(&policy.Config{}),
|
|
},
|
|
Inbound: []*core.InboundHandlerConfig{
|
|
{
|
|
ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
|
|
Address: net.NewIPOrDomain(net.LocalHostIP),
|
|
Port: uint32(port),
|
|
Networks: []net.Network{net.Network_TCP},
|
|
}),
|
|
ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
|
|
PortRange: net.SinglePortRange(serverPort),
|
|
Listen: net.NewIPOrDomain(net.LocalHostIP),
|
|
}),
|
|
},
|
|
},
|
|
Outbound: []*core.OutboundHandlerConfig{
|
|
{
|
|
ProxySettings: serial.ToTypedMessage(&dns_proxy.Config{}),
|
|
},
|
|
},
|
|
}
|
|
|
|
v, err := core.New(config)
|
|
common.Must(err)
|
|
common.Must(v.Start())
|
|
defer v.Close()
|
|
|
|
m1 := new(dns.Msg)
|
|
m1.Id = dns.Id()
|
|
m1.RecursionDesired = true
|
|
m1.Question = make([]dns.Question, 1)
|
|
m1.Question[0] = dns.Question{Name: "google.com.", Qtype: dns.TypeA, Qclass: dns.ClassINET}
|
|
|
|
c := &dns.Client{
|
|
Net: "tcp",
|
|
}
|
|
in, _, err := c.Exchange(m1, "127.0.0.1:"+serverPort.String())
|
|
common.Must(err)
|
|
|
|
if len(in.Answer) != 1 {
|
|
t.Fatal("len(answer): ", len(in.Answer))
|
|
}
|
|
|
|
rr, ok := in.Answer[0].(*dns.A)
|
|
if !ok {
|
|
t.Fatal("not A record")
|
|
}
|
|
if r := cmp.Diff(rr.A[:], net.IP{8, 8, 8, 8}); r != "" {
|
|
t.Error(r)
|
|
}
|
|
}
|
|
|
|
func TestUDP2TCPDNSTunnel(t *testing.T) {
|
|
port := tcp.PickPort()
|
|
|
|
dnsServer := dns.Server{
|
|
Addr: "127.0.0.1:" + port.String(),
|
|
Net: "tcp",
|
|
Handler: &staticHandler{},
|
|
}
|
|
defer dnsServer.Shutdown()
|
|
|
|
go dnsServer.ListenAndServe()
|
|
time.Sleep(time.Second)
|
|
|
|
serverPort := tcp.PickPort()
|
|
config := &core.Config{
|
|
App: []*anypb.Any{
|
|
serial.ToTypedMessage(&dnsapp.Config{
|
|
NameServer: []*dnsapp.NameServer{
|
|
{
|
|
Address: &net.Endpoint{
|
|
Network: net.Network_UDP,
|
|
Address: &net.IPOrDomain{
|
|
Address: &net.IPOrDomain_Ip{
|
|
Ip: []byte{127, 0, 0, 1},
|
|
},
|
|
},
|
|
Port: uint32(port),
|
|
},
|
|
},
|
|
},
|
|
}),
|
|
serial.ToTypedMessage(&dispatcher.Config{}),
|
|
serial.ToTypedMessage(&proxyman.OutboundConfig{}),
|
|
serial.ToTypedMessage(&proxyman.InboundConfig{}),
|
|
serial.ToTypedMessage(&policy.Config{}),
|
|
},
|
|
Inbound: []*core.InboundHandlerConfig{
|
|
{
|
|
ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
|
|
Address: net.NewIPOrDomain(net.LocalHostIP),
|
|
Port: uint32(port),
|
|
Networks: []net.Network{net.Network_TCP},
|
|
}),
|
|
ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
|
|
PortRange: net.SinglePortRange(serverPort),
|
|
Listen: net.NewIPOrDomain(net.LocalHostIP),
|
|
}),
|
|
},
|
|
},
|
|
Outbound: []*core.OutboundHandlerConfig{
|
|
{
|
|
ProxySettings: serial.ToTypedMessage(&dns_proxy.Config{
|
|
Server: &net.Endpoint{
|
|
Network: net.Network_TCP,
|
|
},
|
|
}),
|
|
},
|
|
},
|
|
}
|
|
|
|
v, err := core.New(config)
|
|
common.Must(err)
|
|
common.Must(v.Start())
|
|
defer v.Close()
|
|
|
|
m1 := new(dns.Msg)
|
|
m1.Id = dns.Id()
|
|
m1.RecursionDesired = true
|
|
m1.Question = make([]dns.Question, 1)
|
|
m1.Question[0] = dns.Question{Name: "google.com.", Qtype: dns.TypeA, Qclass: dns.ClassINET}
|
|
|
|
c := &dns.Client{
|
|
Net: "tcp",
|
|
}
|
|
in, _, err := c.Exchange(m1, "127.0.0.1:"+serverPort.String())
|
|
common.Must(err)
|
|
|
|
if len(in.Answer) != 1 {
|
|
t.Fatal("len(answer): ", len(in.Answer))
|
|
}
|
|
|
|
rr, ok := in.Answer[0].(*dns.A)
|
|
if !ok {
|
|
t.Fatal("not A record")
|
|
}
|
|
if r := cmp.Diff(rr.A[:], net.IP{8, 8, 8, 8}); r != "" {
|
|
t.Error(r)
|
|
}
|
|
}
|