mirror of
https://github.com/XTLS/Xray-core.git
synced 2024-11-04 20:19:19 +02:00
Move `DomainStrategy` & `DialerProxy` to `DialSystem`
Fix https://github.com/XTLS/Xray-core/issues/608
This commit is contained in:
parent
1e3d739a5b
commit
86a8fb5d84
|
@ -22,7 +22,6 @@ import (
|
|||
"github.com/xtls/xray-core/features"
|
||||
"github.com/xtls/xray-core/features/dns"
|
||||
"github.com/xtls/xray-core/features/routing"
|
||||
"github.com/xtls/xray-core/transport/internet"
|
||||
)
|
||||
|
||||
// Server is a DNS rely server.
|
||||
|
@ -307,7 +306,7 @@ func (s *Server) queryIPTimeout(idx int, client Client, domain string, option dn
|
|||
Tag: s.tag,
|
||||
})
|
||||
}
|
||||
ctx = internet.ContextWithLookupDomain(ctx, domain)
|
||||
|
||||
ips, err := client.QueryIP(ctx, domain, option)
|
||||
cancel()
|
||||
|
||||
|
|
|
@ -2,7 +2,6 @@ package dns
|
|||
|
||||
import (
|
||||
"context"
|
||||
"github.com/xtls/xray-core/transport/internet"
|
||||
"strings"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
|
@ -192,7 +191,7 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option
|
|||
if inbound := session.InboundFromContext(ctx); inbound != nil {
|
||||
udpCtx = session.ContextWithInbound(udpCtx, inbound)
|
||||
}
|
||||
udpCtx = internet.ContextWithLookupDomain(udpCtx, internet.LookupDomainFromContext(ctx))
|
||||
|
||||
udpCtx = session.ContextWithContent(udpCtx, &session.Content{
|
||||
Protocol: "dns",
|
||||
})
|
||||
|
|
|
@ -3,8 +3,15 @@ package internet
|
|||
import (
|
||||
"context"
|
||||
|
||||
"github.com/xtls/xray-core/common"
|
||||
"github.com/xtls/xray-core/common/dice"
|
||||
"github.com/xtls/xray-core/common/net"
|
||||
"github.com/xtls/xray-core/common/net/cnc"
|
||||
"github.com/xtls/xray-core/common/session"
|
||||
"github.com/xtls/xray-core/features/dns"
|
||||
"github.com/xtls/xray-core/features/outbound"
|
||||
"github.com/xtls/xray-core/transport"
|
||||
"github.com/xtls/xray-core/transport/pipe"
|
||||
)
|
||||
|
||||
// Dialer is the interface for dialing outbound connections.
|
||||
|
@ -62,11 +69,99 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *MemoryStrea
|
|||
return nil, newError("unknown network ", dest.Network)
|
||||
}
|
||||
|
||||
var (
|
||||
dnsClient dns.Client
|
||||
obm outbound.Manager
|
||||
)
|
||||
|
||||
func lookupIP(domain string, strategy DomainStrategy, localAddr net.Address) ([]net.IP, error) {
|
||||
if dnsClient == nil {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
var option = dns.IPOption{
|
||||
IPv4Enable: true,
|
||||
IPv6Enable: true,
|
||||
FakeEnable: false,
|
||||
}
|
||||
|
||||
switch {
|
||||
case strategy == DomainStrategy_USE_IP4 || (localAddr != nil && localAddr.Family().IsIPv4()):
|
||||
option = dns.IPOption{
|
||||
IPv4Enable: true,
|
||||
IPv6Enable: false,
|
||||
FakeEnable: false,
|
||||
}
|
||||
case strategy == DomainStrategy_USE_IP6 || (localAddr != nil && localAddr.Family().IsIPv6()):
|
||||
option = dns.IPOption{
|
||||
IPv4Enable: false,
|
||||
IPv6Enable: true,
|
||||
FakeEnable: false,
|
||||
}
|
||||
case strategy == DomainStrategy_AS_IS:
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
return dnsClient.LookupIP(domain, option)
|
||||
}
|
||||
|
||||
func canLookupIP(ctx context.Context, dst net.Destination, sockopt *SocketConfig) bool {
|
||||
if dst.Address.Family().IsIP() || dnsClient == nil {
|
||||
return false
|
||||
}
|
||||
return sockopt.DomainStrategy != DomainStrategy_AS_IS
|
||||
}
|
||||
|
||||
func redirect(ctx context.Context, dst net.Destination, obt string) net.Conn {
|
||||
newError("redirecting request " + dst.String() + " to " + obt).WriteToLog(session.ExportIDToError(ctx))
|
||||
h := obm.GetHandler(obt)
|
||||
ctx = session.ContextWithOutbound(ctx, &session.Outbound{dst, nil})
|
||||
if h != nil {
|
||||
ur, uw := pipe.New(pipe.OptionsFromContext(ctx)...)
|
||||
dr, dw := pipe.New(pipe.OptionsFromContext(ctx)...)
|
||||
|
||||
go h.Dispatch(ctx, &transport.Link{ur, dw})
|
||||
nc := cnc.NewConnection(
|
||||
cnc.ConnectionInputMulti(uw),
|
||||
cnc.ConnectionOutputMulti(dr),
|
||||
cnc.ConnectionOnClose(common.ChainedClosable{uw, dw}),
|
||||
)
|
||||
return nc
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// DialSystem calls system dialer to create a network connection.
|
||||
func DialSystem(ctx context.Context, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
|
||||
var src net.Address
|
||||
if outbound := session.OutboundFromContext(ctx); outbound != nil {
|
||||
src = outbound.Gateway
|
||||
}
|
||||
if sockopt == nil {
|
||||
return effectiveSystemDialer.Dial(ctx, src, dest, sockopt)
|
||||
}
|
||||
|
||||
if canLookupIP(ctx, dest, sockopt) {
|
||||
ips, err := lookupIP(dest.Address.String(), sockopt.DomainStrategy, src)
|
||||
if err == nil && len(ips) > 0 {
|
||||
dest.Address = net.IPAddress(ips[dice.Roll(len(ips))])
|
||||
newError("replace destination with " + dest.String()).AtInfo().WriteToLog()
|
||||
} else if err != nil {
|
||||
newError("failed to resolve ip").Base(err).AtWarning().WriteToLog()
|
||||
}
|
||||
}
|
||||
|
||||
if obm != nil && len(sockopt.DialerProxy) > 0 {
|
||||
nc := redirect(ctx, dest, sockopt.DialerProxy)
|
||||
if nc != nil {
|
||||
return nc, nil
|
||||
}
|
||||
}
|
||||
|
||||
return effectiveSystemDialer.Dial(ctx, src, dest, sockopt)
|
||||
}
|
||||
|
||||
func InitSystemDialer(dc dns.Client, om outbound.Manager) {
|
||||
dnsClient = dc
|
||||
obm = om
|
||||
}
|
||||
|
|
|
@ -5,29 +5,18 @@ import (
|
|||
"syscall"
|
||||
"time"
|
||||
|
||||
"github.com/xtls/xray-core/common"
|
||||
"github.com/xtls/xray-core/common/dice"
|
||||
"github.com/xtls/xray-core/common/net"
|
||||
"github.com/xtls/xray-core/common/net/cnc"
|
||||
"github.com/xtls/xray-core/common/session"
|
||||
"github.com/xtls/xray-core/features/dns"
|
||||
"github.com/xtls/xray-core/features/outbound"
|
||||
"github.com/xtls/xray-core/transport"
|
||||
"github.com/xtls/xray-core/transport/pipe"
|
||||
)
|
||||
|
||||
var (
|
||||
effectiveSystemDialer SystemDialer = &DefaultSystemDialer{}
|
||||
)
|
||||
|
||||
// InitSystemDialer: It's private method and you are NOT supposed to use this function.
|
||||
func InitSystemDialer(dc dns.Client, om outbound.Manager) {
|
||||
effectiveSystemDialer.Init(dc, om)
|
||||
}
|
||||
|
||||
type SystemDialer interface {
|
||||
Dial(ctx context.Context, source net.Address, destination net.Destination, sockopt *SocketConfig) (net.Conn, error)
|
||||
Init(dc dns.Client, om outbound.Manager)
|
||||
}
|
||||
|
||||
type DefaultSystemDialer struct {
|
||||
|
@ -58,85 +47,8 @@ func hasBindAddr(sockopt *SocketConfig) bool {
|
|||
return sockopt != nil && len(sockopt.BindAddress) > 0 && sockopt.BindPort > 0
|
||||
}
|
||||
|
||||
func (d *DefaultSystemDialer) lookupIP(domain string, strategy DomainStrategy, localAddr net.Address) ([]net.IP, error) {
|
||||
if d.dns == nil {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
var option = dns.IPOption{
|
||||
IPv4Enable: true,
|
||||
IPv6Enable: true,
|
||||
FakeEnable: false,
|
||||
}
|
||||
|
||||
switch {
|
||||
case strategy == DomainStrategy_USE_IP4 || (localAddr != nil && localAddr.Family().IsIPv4()):
|
||||
option = dns.IPOption{
|
||||
IPv4Enable: true,
|
||||
IPv6Enable: false,
|
||||
FakeEnable: false,
|
||||
}
|
||||
case strategy == DomainStrategy_USE_IP6 || (localAddr != nil && localAddr.Family().IsIPv6()):
|
||||
option = dns.IPOption{
|
||||
IPv4Enable: false,
|
||||
IPv6Enable: true,
|
||||
FakeEnable: false,
|
||||
}
|
||||
case strategy == DomainStrategy_AS_IS:
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
return d.dns.LookupIP(domain, option)
|
||||
}
|
||||
|
||||
func (d *DefaultSystemDialer) canLookupIP(ctx context.Context, dst net.Destination, sockopt *SocketConfig) bool {
|
||||
if sockopt == nil || dst.Address.Family().IsIP() || d.dns == nil {
|
||||
return false
|
||||
}
|
||||
if dst.Address.Domain() == LookupDomainFromContext(ctx) {
|
||||
newError("infinite loop detected").AtError().WriteToLog(session.ExportIDToError(ctx))
|
||||
return false
|
||||
}
|
||||
return sockopt.DomainStrategy != DomainStrategy_AS_IS
|
||||
}
|
||||
|
||||
func (d *DefaultSystemDialer) redirect(ctx context.Context, dst net.Destination, obt string) net.Conn {
|
||||
newError("redirecting request " + dst.String() + " to " + obt).WriteToLog(session.ExportIDToError(ctx))
|
||||
h := d.obm.GetHandler(obt)
|
||||
ctx = session.ContextWithOutbound(ctx, &session.Outbound{dst, nil})
|
||||
if h != nil {
|
||||
ur, uw := pipe.New(pipe.OptionsFromContext(ctx)...)
|
||||
dr, dw := pipe.New(pipe.OptionsFromContext(ctx)...)
|
||||
|
||||
go h.Dispatch(ctx, &transport.Link{ur, dw})
|
||||
nc := cnc.NewConnection(
|
||||
cnc.ConnectionInputMulti(uw),
|
||||
cnc.ConnectionOutputMulti(dr),
|
||||
cnc.ConnectionOnClose(common.ChainedClosable{uw, dw}),
|
||||
)
|
||||
return nc
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
|
||||
newError("dialing to " + dest.String()).AtDebug().WriteToLog()
|
||||
if d.obm != nil && sockopt != nil && len(sockopt.DialerProxy) > 0 {
|
||||
nc := d.redirect(ctx, dest, sockopt.DialerProxy)
|
||||
if nc != nil {
|
||||
return nc, nil
|
||||
}
|
||||
}
|
||||
|
||||
if d.canLookupIP(ctx, dest, sockopt) {
|
||||
ips, err := d.lookupIP(dest.Address.String(), sockopt.DomainStrategy, src)
|
||||
if err == nil && len(ips) > 0 {
|
||||
dest.Address = net.IPAddress(ips[dice.Roll(len(ips))])
|
||||
newError("replace destination with " + dest.String()).AtInfo().WriteToLog()
|
||||
} else if err != nil {
|
||||
newError("failed to resolve ip").Base(err).AtWarning().WriteToLog()
|
||||
}
|
||||
}
|
||||
|
||||
if dest.Network == net.Network_UDP && !hasBindAddr(sockopt) {
|
||||
srcAddr := resolveSrcAddr(net.Network_UDP, src)
|
||||
|
@ -192,11 +104,6 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
|
|||
return dialer.DialContext(ctx, dest.Network.SystemString(), dest.NetAddr())
|
||||
}
|
||||
|
||||
func (d *DefaultSystemDialer) Init(dc dns.Client, om outbound.Manager) {
|
||||
d.dns = dc
|
||||
d.obm = om
|
||||
}
|
||||
|
||||
type PacketConnWrapper struct {
|
||||
conn net.PacketConn
|
||||
dest net.Addr
|
||||
|
@ -257,8 +164,6 @@ func WithAdapter(dialer SystemDialerAdapter) SystemDialer {
|
|||
}
|
||||
}
|
||||
|
||||
func (v *SimpleSystemDialer) Init(_ dns.Client, _ outbound.Manager) {}
|
||||
|
||||
func (v *SimpleSystemDialer) Dial(ctx context.Context, src net.Address, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
|
||||
return v.adapter.Dial(dest.Network.SystemString(), dest.NetAddr())
|
||||
}
|
||||
|
|
|
@ -1,18 +0,0 @@
|
|||
package internet
|
||||
|
||||
import "context"
|
||||
|
||||
type systemDialer int
|
||||
|
||||
const systemDialerKey systemDialer = 0
|
||||
|
||||
func ContextWithLookupDomain(ctx context.Context, domain string) context.Context {
|
||||
return context.WithValue(ctx, systemDialerKey, domain)
|
||||
}
|
||||
|
||||
func LookupDomainFromContext(ctx context.Context) string {
|
||||
if domain, ok := ctx.Value(systemDialerKey).(string); ok {
|
||||
return domain
|
||||
}
|
||||
return ""
|
||||
}
|
Loading…
Reference in New Issue