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Deprecate dns_hijack and dns inbound

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This commit is contained in:
世界
2022-07-23 09:15:47 +08:00
parent 9f8978bbcf
commit 884c0cf595
18 changed files with 50 additions and 83 deletions
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2
outbound/block.go
View File

@@ -22,9 +22,9 @@ func NewBlock(logger log.ContextLogger, tag string) *Block {
return &Block{
myOutboundAdapter{
protocol: C.TypeBlock,
network: []string{C.NetworkTCP, C.NetworkUDP},
logger: logger,
tag: tag,
network: []string{C.NetworkTCP, C.NetworkUDP},
},
}
}

2
outbound/builder.go
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@@ -18,6 +18,8 @@ func New(router adapter.Router, logger log.ContextLogger, options option.Outboun
return NewDirect(router, logger, options.Tag, options.DirectOptions), nil
case C.TypeBlock:
return NewBlock(logger, options.Tag), nil
case C.TypeDNS:
return NewDNS(router, logger, options.Tag), nil
case C.TypeSocks:
return NewSocks(router, logger, options.Tag, options.SocksOptions)
case C.TypeHTTP:

3
outbound/default.go
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@@ -18,9 +18,10 @@ import (
type myOutboundAdapter struct {
protocol string
network []string
router adapter.Router
logger log.ContextLogger
tag string
network []string
}
func (a *myOutboundAdapter) Type() string {

3
outbound/direct.go
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@@ -27,9 +27,10 @@ func NewDirect(router adapter.Router, logger log.ContextLogger, tag string, opti
outbound := &Direct{
myOutboundAdapter: myOutboundAdapter{
protocol: C.TypeDirect,
network: []string{C.NetworkTCP, C.NetworkUDP},
router: router,
logger: logger,
tag: tag,
network: []string{C.NetworkTCP, C.NetworkUDP},
},
dialer: dialer.NewOutbound(router, options.OutboundDialerOptions),
}

143
outbound/dns.go Normal file
View File

@@ -0,0 +1,143 @@
package outbound
import (
"context"
"encoding/binary"
"io"
"net"
"os"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/buf"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"golang.org/x/net/dns/dnsmessage"
)
var _ adapter.Outbound = (*DNS)(nil)
type DNS struct {
myOutboundAdapter
}
func NewDNS(router adapter.Router, logger log.ContextLogger, tag string) *DNS {
return &DNS{
myOutboundAdapter{
protocol: C.TypeDNS,
network: []string{C.NetworkTCP, C.NetworkUDP},
router: router,
logger: logger,
tag: tag,
},
}
}
func (d *DNS) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
return nil, os.ErrInvalid
}
func (d *DNS) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
return nil, os.ErrInvalid
}
func (d *DNS) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
ctx = adapter.WithContext(ctx, &metadata)
_buffer := buf.StackNewSize(1024)
defer common.KeepAlive(_buffer)
buffer := common.Dup(_buffer)
defer buffer.Release()
for {
var queryLength uint16
err := binary.Read(conn, binary.BigEndian, &queryLength)
if err != nil {
return err
}
if queryLength > 1024 {
return io.ErrShortBuffer
}
buffer.FullReset()
_, err = buffer.ReadFullFrom(conn, int(queryLength))
if err != nil {
return err
}
var message dnsmessage.Message
err = message.Unpack(buffer.Bytes())
if err != nil {
return err
}
if len(message.Questions) > 0 {
question := message.Questions[0]
metadata.Domain = string(question.Name.Data[:question.Name.Length-1])
d.logger.DebugContext(ctx, "inbound dns query ", formatDNSQuestion(question), " from ", metadata.Source)
}
go func() error {
response, err := d.router.Exchange(ctx, &message)
if err != nil {
return err
}
_responseBuffer := buf.StackNewSize(1024)
defer common.KeepAlive(_responseBuffer)
responseBuffer := common.Dup(_responseBuffer)
defer responseBuffer.Release()
responseBuffer.Resize(2, 0)
n, err := response.AppendPack(responseBuffer.Index(0))
if err != nil {
return err
}
responseBuffer.Truncate(len(n))
binary.BigEndian.PutUint16(responseBuffer.ExtendHeader(2), uint16(len(n)))
_, err = conn.Write(responseBuffer.Bytes())
return err
}()
}
}
func (d *DNS) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
ctx = adapter.WithContext(ctx, &metadata)
_buffer := buf.StackNewSize(1024)
defer common.KeepAlive(_buffer)
buffer := common.Dup(_buffer)
defer buffer.Release()
for {
buffer.FullReset()
destination, err := conn.ReadPacket(buffer)
if err != nil {
return err
}
var message dnsmessage.Message
err = message.Unpack(buffer.Bytes())
if err != nil {
return err
}
if len(message.Questions) > 0 {
question := message.Questions[0]
metadata.Domain = string(question.Name.Data[:question.Name.Length-1])
d.logger.DebugContext(ctx, "inbound dns query ", formatDNSQuestion(question), " from ", metadata.Source)
}
go func() error {
response, err := d.router.Exchange(ctx, &message)
if err != nil {
return err
}
_responseBuffer := buf.StackNewSize(1024)
defer common.KeepAlive(_responseBuffer)
responseBuffer := common.Dup(_responseBuffer)
defer responseBuffer.Release()
n, err := response.AppendPack(responseBuffer.Index(0))
if err != nil {
return err
}
responseBuffer.Truncate(len(n))
err = conn.WritePacket(responseBuffer, destination)
return err
}()
}
}
func formatDNSQuestion(question dnsmessage.Question) string {
return string(question.Name.Data[:question.Name.Length-1]) + " " + question.Type.String()[4:] + " " + question.Class.String()[5:]
}

3
outbound/http.go
View File

@@ -31,9 +31,10 @@ func NewHTTP(router adapter.Router, logger log.ContextLogger, tag string, option
return &HTTP{
myOutboundAdapter{
protocol: C.TypeHTTP,
network: []string{C.NetworkTCP},
router: router,
logger: logger,
tag: tag,
network: []string{C.NetworkTCP},
},
http.NewClient(detour, options.ServerOptions.Build(), options.Username, options.Password),
}, nil

3
outbound/selector.go
View File

@@ -20,7 +20,6 @@ var (
type Selector struct {
myOutboundAdapter
router adapter.Router
tags []string
defaultTag string
outbounds map[string]adapter.Outbound
@@ -31,10 +30,10 @@ func NewSelector(router adapter.Router, logger log.ContextLogger, tag string, op
outbound := &Selector{
myOutboundAdapter: myOutboundAdapter{
protocol: C.TypeSelector,
router: router,
logger: logger,
tag: tag,
},
router: router,
tags: options.Outbounds,
defaultTag: options.Default,
outbounds: make(map[string]adapter.Outbound),

3
outbound/shadowsocks.go
View File

@@ -33,9 +33,10 @@ func NewShadowsocks(router adapter.Router, logger log.ContextLogger, tag string,
return &Shadowsocks{
myOutboundAdapter{
protocol: C.TypeShadowsocks,
network: options.Network.Build(),
router: router,
logger: logger,
tag: tag,
network: options.Network.Build(),
},
dialer.NewOutbound(router, options.OutboundDialerOptions),
method,

3
outbound/socks.go
View File

@@ -36,9 +36,10 @@ func NewSocks(router adapter.Router, logger log.ContextLogger, tag string, optio
return &Socks{
myOutboundAdapter{
protocol: C.TypeSocks,
network: options.Network.Build(),
router: router,
logger: logger,
tag: tag,
network: options.Network.Build(),
},
socks.NewClient(detour, options.ServerOptions.Build(), version, options.Username, options.Password),
}, nil

3
outbound/urltest.go
View File

@@ -24,7 +24,6 @@ var (
type URLTest struct {
myOutboundAdapter
router adapter.Router
tags []string
link string
interval time.Duration
@@ -36,10 +35,10 @@ func NewURLTest(router adapter.Router, logger log.ContextLogger, tag string, opt
outbound := &URLTest{
myOutboundAdapter: myOutboundAdapter{
protocol: C.TypeURLTest,
router: router,
logger: logger,
tag: tag,
},
router: router,
tags: options.Outbounds,
link: options.URL,
interval: time.Duration(options.Interval),

3
outbound/vmess.go
View File

@@ -43,9 +43,10 @@ func NewVMess(router adapter.Router, logger log.ContextLogger, tag string, optio
return &VMess{
myOutboundAdapter{
protocol: C.TypeVMess,
network: options.Network.Build(),
router: router,
logger: logger,
tag: tag,
network: options.Network.Build(),
},
detour,
client,