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Add resolver for outbound dialer

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This commit is contained in:
世界 2022-07-07 21:47:21 +08:00
parent ecac383477
commit 538a1f5909
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GPG key ID: CD109927C34A63C4
32 changed files with 1058 additions and 222 deletions
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26
adapter/inbound.go
View file

@ -1,6 +1,8 @@
package adapter
import (
"context"
M "github.com/sagernet/sing/common/metadata"
)
@ -17,6 +19,7 @@ type InboundContext struct {
Destination M.Socksaddr
Domain string
Protocol string
Outbound string
// cache
@ -26,3 +29,26 @@ type InboundContext struct {
SourceGeoIPCode string
GeoIPCode string
}
type inboundContextKey struct{}
func WithContext(ctx context.Context, inboundContext *InboundContext) context.Context {
return context.WithValue(ctx, (*inboundContextKey)(nil), inboundContext)
}
func ContextFrom(ctx context.Context) *InboundContext {
metadata := ctx.Value((*inboundContextKey)(nil))
if metadata == nil {
return nil
}
return metadata.(*InboundContext)
}
func AppendContext(ctx context.Context) (context.Context, *InboundContext) {
metadata := ContextFrom(ctx)
if metadata != nil {
return ctx, metadata
}
metadata = new(InboundContext)
return WithContext(ctx, metadata), nil
}

7
adapter/router.go
View file

@ -3,11 +3,15 @@ package adapter
import (
"context"
"net"
"net/netip"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing-box/common/geoip"
"github.com/sagernet/sing-box/common/geosite"
C "github.com/sagernet/sing-box/constant"
"golang.org/x/net/dns/dnsmessage"
)
type Router interface {
@ -18,6 +22,9 @@ type Router interface {
RoutePacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext) error
GeoIPReader() *geoip.Reader
GeositeReader() *geosite.Reader
Exchange(ctx context.Context, message *dnsmessage.Message) (*dnsmessage.Message, error)
Lookup(ctx context.Context, domain string, strategy C.DomainStrategy) ([]netip.Addr, error)
LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error)
}
type Rule interface {

14
service.go → box.go
View file

@ -16,9 +16,9 @@ import (
"github.com/sagernet/sing-box/route"
)
var _ adapter.Service = (*Service)(nil)
var _ adapter.Service = (*Box)(nil)
type Service struct {
type Box struct {
router adapter.Router
logger log.Logger
inbounds []adapter.Inbound
@ -26,13 +26,13 @@ type Service struct {
createdAt time.Time
}
func NewService(ctx context.Context, options option.Options) (*Service, error) {
func New(ctx context.Context, options option.Options) (*Box, error) {
createdAt := time.Now()
logger, err := log.NewLogger(common.PtrValueOrDefault(options.Log))
if err != nil {
return nil, E.Cause(err, "parse log options")
}
router, err := route.NewRouter(ctx, logger, common.PtrValueOrDefault(options.Route))
router, err := route.NewRouter(ctx, logger, common.PtrValueOrDefault(options.Route), common.PtrValueOrDefault(options.DNS))
if err != nil {
return nil, E.Cause(err, "parse route options")
}
@ -63,7 +63,7 @@ func NewService(ctx context.Context, options option.Options) (*Service, error) {
if err != nil {
return nil, err
}
return &Service{
return &Box{
router: router,
logger: logger,
inbounds: inbounds,
@ -72,7 +72,7 @@ func NewService(ctx context.Context, options option.Options) (*Service, error) {
}, nil
}
func (s *Service) Start() error {
func (s *Box) Start() error {
err := s.logger.Start()
if err != nil {
return err
@ -91,7 +91,7 @@ func (s *Service) Start() error {
return nil
}
func (s *Service) Close() error {
func (s *Box) Close() error {
for _, in := range s.inbounds {
in.Close()
}

2
cmd/sing-box/cmd_check.go
View file

@ -30,7 +30,7 @@ func checkConfiguration(cmd *cobra.Command, args []string) {
logrus.Fatal("decode config: ", err)
}
ctx, cancel := context.WithCancel(context.Background())
_, err = box.NewService(ctx, options)
_, err = box.New(ctx, options)
if err != nil {
logrus.Fatal("create service: ", err)
}

6
cmd/sing-box/cmd_run.go
View file

@ -38,11 +38,11 @@ func run(cmd *cobra.Command, args []string) {
options.Log.DisableColor = true
}
ctx, cancel := context.WithCancel(context.Background())
service, err := box.NewService(ctx, options)
instance, err := box.New(ctx, options)
if err != nil {
logrus.Fatal("create service: ", err)
}
err = service.Start()
err = instance.Start()
if err != nil {
logrus.Fatal("start service: ", err)
}
@ -50,5 +50,5 @@ func run(cmd *cobra.Command, args []string) {
signal.Notify(osSignals, os.Interrupt, syscall.SIGTERM)
<-osSignals
cancel()
service.Close()
instance.Close()
}

15
outbound/dialer/default.go → common/dialer/default.go
View file

@ -7,7 +7,6 @@ import (
"github.com/sagernet/sing/common/control"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/option"
@ -15,12 +14,12 @@ import (
"github.com/database64128/tfo-go"
)
type defaultDialer struct {
type DefaultDialer struct {
tfo.Dialer
net.ListenConfig
}
func NewDefault(options option.DialerOptions) N.Dialer {
func NewDefault(options option.DialerOptions) *DefaultDialer {
var dialer net.Dialer
var listener net.ListenConfig
if options.BindInterface != "" {
@ -41,13 +40,17 @@ func NewDefault(options option.DialerOptions) N.Dialer {
if options.ConnectTimeout != 0 {
dialer.Timeout = time.Duration(options.ConnectTimeout) * time.Second
}
return &defaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener}
return &DefaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener}
}
func (d *defaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
return d.Dialer.DialContext(ctx, network, address.String())
}
func (d *defaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
return d.ListenConfig.ListenPacket(ctx, C.NetworkUDP, "")
}
func (d *DefaultDialer) Upstream() any {
return &d.Dialer
}

17
outbound/dialer/detour.go → common/dialer/detour.go
View file

@ -12,7 +12,7 @@ import (
"github.com/sagernet/sing-box/adapter"
)
type detourDialer struct {
type DetourDialer struct {
router adapter.Router
detour string
dialer N.Dialer
@ -21,15 +21,15 @@ type detourDialer struct {
}
func NewDetour(router adapter.Router, detour string) N.Dialer {
return &detourDialer{router: router, detour: detour}
return &DetourDialer{router: router, detour: detour}
}
func (d *detourDialer) Start() error {
func (d *DetourDialer) Start() error {
_, err := d.Dialer()
return err
}
func (d *detourDialer) Dialer() (N.Dialer, error) {
func (d *DetourDialer) Dialer() (N.Dialer, error) {
d.initOnce.Do(func() {
var loaded bool
d.dialer, loaded = d.router.Outbound(d.detour)
@ -40,7 +40,7 @@ func (d *detourDialer) Dialer() (N.Dialer, error) {
return d.dialer, d.initErr
}
func (d *detourDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
func (d *DetourDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
dialer, err := d.Dialer()
if err != nil {
return nil, err
@ -48,10 +48,15 @@ func (d *detourDialer) DialContext(ctx context.Context, network string, destinat
return dialer.DialContext(ctx, network, destination)
}
func (d *detourDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
func (d *DetourDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
dialer, err := d.Dialer()
if err != nil {
return nil, err
}
return dialer.ListenPacket(ctx, destination)
}
func (d *DetourDialer) Upstream() any {
detour, _ := d.Dialer()
return detour
}

6
outbound/dialer/dialer.go → common/dialer/dialer.go
View file

@ -5,15 +5,21 @@ import (
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/option"
)
func New(router adapter.Router, options option.DialerOptions) N.Dialer {
domainStrategy := C.DomainStrategy(options.DomainStrategy)
var dialer N.Dialer
if options.Detour == "" {
dialer = NewDefault(options)
dialer = NewResolveDialer(router, dialer, domainStrategy)
} else {
dialer = NewDetour(router, options.Detour)
if domainStrategy != C.DomainStrategyAsIS {
dialer = NewResolveDialer(router, dialer, domainStrategy)
}
}
if options.OverrideOptions.IsValid() {
dialer = NewOverride(dialer, common.PtrValueOrDefault(options.OverrideOptions))

14
outbound/dialer/override.go → common/dialer/override.go
View file

@ -13,9 +13,9 @@ import (
"github.com/sagernet/sing-box/option"
)
var _ N.Dialer = (*overrideDialer)(nil)
var _ N.Dialer = (*OverrideDialer)(nil)
type overrideDialer struct {
type OverrideDialer struct {
upstream N.Dialer
tlsEnabled bool
tlsConfig tls.Config
@ -23,7 +23,7 @@ type overrideDialer struct {
}
func NewOverride(upstream N.Dialer, options option.OverrideStreamOptions) N.Dialer {
return &overrideDialer{
return &OverrideDialer{
upstream,
options.TLS,
tls.Config{
@ -34,7 +34,7 @@ func NewOverride(upstream N.Dialer, options option.OverrideStreamOptions) N.Dial
}
}
func (d *overrideDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
func (d *OverrideDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
switch network {
case C.NetworkTCP:
conn, err := d.upstream.DialContext(ctx, C.NetworkTCP, destination)
@ -54,7 +54,7 @@ func (d *overrideDialer) DialContext(ctx context.Context, network string, destin
return d.upstream.DialContext(ctx, network, destination)
}
func (d *overrideDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
func (d *OverrideDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
if d.uotEnabled {
tcpConn, err := d.upstream.DialContext(ctx, C.NetworkTCP, destination)
if err != nil {
@ -64,3 +64,7 @@ func (d *overrideDialer) ListenPacket(ctx context.Context, destination M.Socksad
}
return d.upstream.ListenPacket(ctx, destination)
}
func (d *OverrideDialer) Upstream() any {
return d.upstream
}

0
outbound/dialer/protect.go → common/dialer/protect.go
View file

0
outbound/dialer/protect_stub.go → common/dialer/protect_stub.go
View file

84
common/dialer/resolve.go Normal file
View file

@ -0,0 +1,84 @@
package dialer
import (
"context"
"net"
"net/netip"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
)
type ResolveDialer struct {
dialer N.Dialer
router adapter.Router
strategy C.DomainStrategy
}
func NewResolveDialer(router adapter.Router, dialer N.Dialer, strategy C.DomainStrategy) *ResolveDialer {
return &ResolveDialer{
dialer,
router,
strategy,
}
}
func (d *ResolveDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
if !destination.IsFqdn() {
return d.dialer.DialContext(ctx, network, destination)
}
var addresses []netip.Addr
var err error
if d.strategy == C.DomainStrategyAsIS {
addresses, err = d.router.LookupDefault(ctx, destination.Fqdn)
} else {
addresses, err = d.router.Lookup(ctx, destination.Fqdn, d.strategy)
}
if err != nil {
return nil, err
}
var conn net.Conn
var connErrors []error
for _, address := range addresses {
conn, err = d.dialer.DialContext(ctx, network, M.SocksaddrFromAddrPort(address, destination.Port))
if err != nil {
connErrors = append(connErrors, err)
}
return conn, nil
}
return nil, E.Errors(connErrors...)
}
func (d *ResolveDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
if !destination.IsFqdn() {
return d.dialer.ListenPacket(ctx, destination)
}
var addresses []netip.Addr
var err error
if d.strategy == C.DomainStrategyAsIS {
addresses, err = d.router.LookupDefault(ctx, destination.Fqdn)
} else {
addresses, err = d.router.Lookup(ctx, destination.Fqdn, d.strategy)
}
if err != nil {
return nil, err
}
var conn net.PacketConn
var connErrors []error
for _, address := range addresses {
conn, err = d.dialer.ListenPacket(ctx, M.SocksaddrFromAddrPort(address, destination.Port))
if err != nil {
connErrors = append(connErrors, err)
}
return conn, nil
}
return nil, E.Errors(connErrors...)
}
func (d *ResolveDialer) Upstream() any {
return d.dialer
}

6
common/domain/matcher_test.go
View file

@ -1,14 +1,16 @@
package domain
package domain_test
import (
"testing"
"github.com/sagernet/sing-box/common/domain"
"github.com/stretchr/testify/require"
)
func TestMatch(t *testing.T) {
r := require.New(t)
matcher := NewMatcher([]string{"domain.com"}, []string{"suffix.com", ".suffix.org"})
matcher := domain.NewMatcher([]string{"domain.com"}, []string{"suffix.com", ".suffix.org"})
r.True(matcher.Match("domain.com"))
r.False(matcher.Match("my.domain.com"))
r.True(matcher.Match("suffix.com"))

8
common/sniff/quic_test.go
View file

@ -1,23 +1,25 @@
package sniff
package sniff_test
import (
"context"
"encoding/hex"
"testing"
"github.com/sagernet/sing-box/common/sniff"
"github.com/stretchr/testify/require"
)
func TestSniffQUICv1(t *testing.T) {
pkt, err := hex.DecodeString("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")
require.NoError(t, err)
metadata, err := QUICClientHello(context.Background(), pkt)
metadata, err := sniff.QUICClientHello(context.Background(), pkt)
require.NoError(t, err)
require.Equal(t, metadata.Domain, "cloudflare-quic.com")
}
func FuzzSniffQUIC(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
QUICClientHello(context.Background(), data)
sniff.QUICClientHello(context.Background(), data)
})
}

46
dns/client_test.go Normal file
View file

@ -0,0 +1,46 @@
package dns_test
import (
"context"
"testing"
"time"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/dns"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"github.com/stretchr/testify/require"
"golang.org/x/net/dns/dnsmessage"
)
func TestClient(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
client := dns.NewClient(option.DNSClientOptions{})
dnsTransport := dns.NewTCPTransport(context.Background(), N.SystemDialer, log.NewNopLogger(), M.ParseSocksaddr("1.0.0.1:53"))
response, err := client.Exchange(ctx, dnsTransport, makeQuery())
require.NoError(t, err)
require.NotEmpty(t, response.Answers, "no answers")
response, err = client.Exchange(ctx, dnsTransport, makeQuery())
require.NoError(t, err)
require.NotEmpty(t, response.Answers, "no answers")
addresses, err := client.Lookup(ctx, dnsTransport, "www.google.com", C.DomainStrategyAsIS)
require.NoError(t, err)
require.NotEmpty(t, addresses, "no answers")
cancel()
}
func makeQuery() *dnsmessage.Message {
message := &dnsmessage.Message{}
message.Header.ID = 1
message.Header.RecursionDesired = true
message.Questions = append(message.Questions, dnsmessage.Question{
Name: dnsmessage.MustNewName("google.com."),
Type: dnsmessage.TypeA,
Class: dnsmessage.ClassINET,
})
return message
}

68
dns/dialer.go Normal file
View file

@ -0,0 +1,68 @@
package dns
import (
"context"
"net"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
)
type DialerWrapper struct {
dialer N.Dialer
strategy C.DomainStrategy
client adapter.DNSClient
transport adapter.DNSTransport
}
func NewDialerWrapper(dialer N.Dialer, strategy C.DomainStrategy, client adapter.DNSClient, transport adapter.DNSTransport) N.Dialer {
return &DialerWrapper{dialer, strategy, client, transport}
}
func (d *DialerWrapper) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
if destination.IsIP() {
return d.dialer.DialContext(ctx, network, destination)
}
addresses, err := d.client.Lookup(ctx, d.transport, destination.Fqdn, d.strategy)
if err != nil {
return nil, err
}
var conn net.Conn
var connErrors []error
for _, address := range addresses {
conn, err = d.dialer.DialContext(ctx, network, M.SocksaddrFromAddrPort(address, destination.Port))
if err != nil {
connErrors = append(connErrors, err)
}
return conn, nil
}
return nil, E.Errors(connErrors...)
}
func (d *DialerWrapper) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
if destination.IsIP() {
return d.dialer.ListenPacket(ctx, destination)
}
addresses, err := d.client.Lookup(ctx, d.transport, destination.Fqdn, d.strategy)
if err != nil {
return nil, err
}
var conn net.PacketConn
var connErrors []error
for _, address := range addresses {
conn, err = d.dialer.ListenPacket(ctx, M.SocksaddrFromAddrPort(address, destination.Port))
if err != nil {
connErrors = append(connErrors, err)
}
return conn, nil
}
return nil, E.Errors(connErrors...)
}
func (d *DialerWrapper) Upstream() any {
return d.dialer
}

2
go.mod
View file

@ -7,7 +7,7 @@ require (
github.com/goccy/go-json v0.9.8
github.com/logrusorgru/aurora v2.0.3+incompatible
github.com/oschwald/maxminddb-golang v1.9.0
github.com/sagernet/sing v0.0.0-20220706131532-6d16497f03a6
github.com/sagernet/sing v0.0.0-20220707133944-6a0987c52ae4
github.com/sagernet/sing-shadowsocks v0.0.0-20220701084835-2208da1d8649
github.com/sirupsen/logrus v1.8.1
github.com/spf13/cobra v1.5.0

4
go.sum
View file

@ -23,8 +23,8 @@ github.com/oschwald/maxminddb-golang v1.9.0/go.mod h1:TK+s/Z2oZq0rSl4PSeAEoP0bgm
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/sagernet/sing v0.0.0-20220706131532-6d16497f03a6 h1:NKDjOKPHP4JOrYomj2Q/tvKDWLmCNLHNQSPZLE5o3I4=
github.com/sagernet/sing v0.0.0-20220706131532-6d16497f03a6/go.mod h1:3ZmoGNg/nNJTyHAZFNRSPaXpNIwpDvyIiAUd0KIWV5c=
github.com/sagernet/sing v0.0.0-20220707133944-6a0987c52ae4 h1:nV/DyNi+O1VxNoChD5E9M6Y0VoFdVr0UEW9h9JnqxNs=
github.com/sagernet/sing v0.0.0-20220707133944-6a0987c52ae4/go.mod h1:3ZmoGNg/nNJTyHAZFNRSPaXpNIwpDvyIiAUd0KIWV5c=
github.com/sagernet/sing-shadowsocks v0.0.0-20220701084835-2208da1d8649 h1:whNDUGOAX5GPZkSy4G3Gv9QyIgk5SXRyjkRuP7ohF8k=
github.com/sagernet/sing-shadowsocks v0.0.0-20220701084835-2208da1d8649/go.mod h1:MuyT+9fEPjvauAv0fSE0a6Q+l0Tv2ZrAafTkYfnxBFw=
github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=

17
option/config.go
View file

@ -2,17 +2,19 @@ package option
import (
"bytes"
"strings"
"github.com/sagernet/sing/common"
E "github.com/sagernet/sing/common/exceptions"
"github.com/goccy/go-json"
)
type _Options struct {
Log *LogOption `json:"log,omitempty"`
DNS *DNSOptions `json:"dns,omitempty"`
Inbounds []Inbound `json:"inbounds,omitempty"`
Outbounds []Outbound `json:"outbounds,omitempty"`
DNS *DNSOptions `json:"dns,omitempty"`
Route *RouteOptions `json:"route,omitempty"`
}
@ -21,11 +23,22 @@ type Options _Options
func (o *Options) UnmarshalJSON(content []byte) error {
decoder := json.NewDecoder(bytes.NewReader(content))
decoder.DisallowUnknownFields()
return decoder.Decode((*_Options)(o))
err := decoder.Decode((*_Options)(o))
if err == nil {
return nil
}
if syntaxError, isSyntaxError := err.(*json.SyntaxError); isSyntaxError {
prefix := string(content[:syntaxError.Offset])
row := strings.Count(prefix, "\n") + 1
column := len(prefix) - strings.LastIndex(prefix, "\n") - 1
return E.Extend(syntaxError, "row ", row, ", column ", column)
}
return err
}
func (o Options) Equals(other Options) bool {
return common.ComparablePtrEquals(o.Log, other.Log) &&
common.PtrEquals(o.DNS, other.DNS) &&
common.SliceEquals(o.Inbounds, other.Inbounds) &&
common.ComparableSliceEquals(o.Outbounds, other.Outbounds) &&
common.PtrEquals(o.Route, other.Route)

128
option/dns.go
View file

@ -1,10 +1,30 @@
package option
import (
"github.com/sagernet/sing/common"
E "github.com/sagernet/sing/common/exceptions"
C "github.com/sagernet/sing-box/constant"
"github.com/goccy/go-json"
)
type DNSOptions struct {
Servers []DNSServerOptions `json:"servers,omitempty"`
Rules []DNSRule `json:"rules,omitempty"`
Final string `json:"final,omitempty"`
Strategy DomainStrategy `json:"strategy,omitempty"`
DNSClientOptions
}
func (o DNSOptions) Equals(other DNSOptions) bool {
return common.ComparableSliceEquals(o.Servers, other.Servers) &&
common.SliceEquals(o.Rules, other.Rules) &&
o.Final == other.Final &&
o.Strategy == other.Strategy &&
o.DNSClientOptions == other.DNSClientOptions
}
type DNSClientOptions struct {
DisableCache bool `json:"disable_cache,omitempty"`
DisableExpire bool `json:"disable_expire,omitempty"`
@ -14,5 +34,113 @@ type DNSServerOptions struct {
Tag string `json:"tag,omitempty"`
Address string `json:"address"`
AddressResolver string `json:"address_resolver,omitempty"`
AddressStrategy DomainStrategy `json:"address_strategy,omitempty"`
DialerOptions
}
type _DNSRule struct {
Type string `json:"type,omitempty"`
DefaultOptions DefaultDNSRule `json:"-"`
LogicalOptions LogicalDNSRule `json:"-"`
}
type DNSRule _DNSRule
func (r DNSRule) Equals(other DNSRule) bool {
return r.Type == other.Type &&
r.DefaultOptions.Equals(other.DefaultOptions) &&
r.LogicalOptions.Equals(other.LogicalOptions)
}
func (r DNSRule) MarshalJSON() ([]byte, error) {
var v any
switch r.Type {
case C.RuleTypeDefault:
v = r.DefaultOptions
case C.RuleTypeLogical:
v = r.LogicalOptions
default:
return nil, E.New("unknown rule type: " + r.Type)
}
return MarshallObjects((_DNSRule)(r), v)
}
func (r *DNSRule) UnmarshalJSON(bytes []byte) error {
err := json.Unmarshal(bytes, (*_DNSRule)(r))
if err != nil {
return err
}
if r.Type == "" {
r.Type = C.RuleTypeDefault
}
var v any
switch r.Type {
case C.RuleTypeDefault:
v = &r.DefaultOptions
case C.RuleTypeLogical:
v = &r.LogicalOptions
default:
return E.New("unknown rule type: " + r.Type)
}
err = UnmarshallExcluded(bytes, (*_DNSRule)(r), v)
if err != nil {
return E.Cause(err, "dns route rule")
}
return nil
}
type DefaultDNSRule struct {
Inbound Listable[string] `json:"inbound,omitempty"`
Network string `json:"network,omitempty"`
Protocol Listable[string] `json:"protocol,omitempty"`
Domain Listable[string] `json:"domain,omitempty"`
DomainSuffix Listable[string] `json:"domain_suffix,omitempty"`
DomainKeyword Listable[string] `json:"domain_keyword,omitempty"`
DomainRegex Listable[string] `json:"domain_regex,omitempty"`
Geosite Listable[string] `json:"geosite,omitempty"`
SourceGeoIP Listable[string] `json:"source_geoip,omitempty"`
SourceIPCIDR Listable[string] `json:"source_ip_cidr,omitempty"`
SourcePort Listable[uint16] `json:"source_port,omitempty"`
Port Listable[uint16] `json:"port,omitempty"`
Outbound Listable[string] `json:"outbound,omitempty"`
Server string `json:"server,omitempty"`
}
func (r DefaultDNSRule) IsValid() bool {
var defaultValue DefaultDNSRule
defaultValue.Server = r.Server
return !r.Equals(defaultValue)
}
func (r DefaultDNSRule) Equals(other DefaultDNSRule) bool {
return common.ComparableSliceEquals(r.Inbound, other.Inbound) &&
r.Network == other.Network &&
common.ComparableSliceEquals(r.Protocol, other.Protocol) &&
common.ComparableSliceEquals(r.Domain, other.Domain) &&
common.ComparableSliceEquals(r.DomainSuffix, other.DomainSuffix) &&
common.ComparableSliceEquals(r.DomainKeyword, other.DomainKeyword) &&
common.ComparableSliceEquals(r.DomainRegex, other.DomainRegex) &&
common.ComparableSliceEquals(r.Geosite, other.Geosite) &&
common.ComparableSliceEquals(r.SourceGeoIP, other.SourceGeoIP) &&
common.ComparableSliceEquals(r.SourceIPCIDR, other.SourceIPCIDR) &&
common.ComparableSliceEquals(r.SourcePort, other.SourcePort) &&
common.ComparableSliceEquals(r.Port, other.Port) &&
common.ComparableSliceEquals(r.Outbound, other.Outbound) &&
r.Server == other.Server
}
type LogicalDNSRule struct {
Mode string `json:"mode"`
Rules []DefaultDNSRule `json:"rules,omitempty"`
Server string `json:"server,omitempty"`
}
func (r LogicalDNSRule) IsValid() bool {
return len(r.Rules) > 0 && common.All(r.Rules, DefaultDNSRule.IsValid)
}
func (r LogicalDNSRule) Equals(other LogicalDNSRule) bool {
return r.Mode == other.Mode &&
common.SliceEquals(r.Rules, other.Rules) &&
r.Server == other.Server
}

1
option/outbound.go
View file

@ -75,6 +75,7 @@ type DialerOptions struct {
ConnectTimeout int `json:"connect_timeout,omitempty"`
TCPFastOpen bool `json:"tcp_fast_open,omitempty"`
OverrideOptions *OverrideStreamOptions `json:"override,omitempty"`
DomainStrategy DomainStrategy `json:"domain_strategy,omitempty"`
}
type OverrideStreamOptions struct {

9
option/route.go
View file

@ -13,7 +13,7 @@ type RouteOptions struct {
GeoIP *GeoIPOptions `json:"geoip,omitempty"`
Geosite *GeositeOptions `json:"geosite,omitempty"`
Rules []Rule `json:"rules,omitempty"`
DefaultDetour string `json:"default_detour,omitempty"`
Final string `json:"final,omitempty"`
}
func (o RouteOptions) Equals(other RouteOptions) bool {
@ -52,6 +52,7 @@ func (r Rule) MarshalJSON() ([]byte, error) {
var v any
switch r.Type {
case C.RuleTypeDefault:
r.Type = ""
v = r.DefaultOptions
case C.RuleTypeLogical:
v = r.LogicalOptions
@ -66,12 +67,10 @@ func (r *Rule) UnmarshalJSON(bytes []byte) error {
if err != nil {
return err
}
if r.Type == "" {
r.Type = C.RuleTypeDefault
}
var v any
switch r.Type {
case C.RuleTypeDefault:
case "":
r.Type = C.RuleTypeDefault
v = &r.DefaultOptions
case C.RuleTypeLogical:
v = &r.LogicalOptions

5
option/types.go
View file

@ -97,7 +97,8 @@ func (s DomainStrategy) MarshalJSON() ([]byte, error) {
var value string
switch C.DomainStrategy(s) {
case C.DomainStrategyAsIS:
value = "AsIS"
value = ""
// value = "AsIS"
case C.DomainStrategyPreferIPv4:
value = "PreferIPv4"
case C.DomainStrategyPreferIPv6:
@ -119,7 +120,7 @@ func (s *DomainStrategy) UnmarshalJSON(bytes []byte) error {
return err
}
switch value {
case "AsIS":
case "", "AsIS":
*s = DomainStrategy(C.DomainStrategyAsIS)
case "PreferIPv4":
*s = DomainStrategy(C.DomainStrategyPreferIPv4)

36
outbound/direct.go
View file

@ -9,10 +9,10 @@ import (
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/common/dialer"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"github.com/sagernet/sing-box/outbound/dialer"
)
var _ adapter.Outbound = (*Direct)(nil)
@ -47,41 +47,45 @@ func NewDirect(router adapter.Router, logger log.Logger, tag string, options opt
return outbound
}
func (d *Direct) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
switch d.overrideOption {
func (h *Direct) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
switch h.overrideOption {
case 1:
destination = d.overrideDestination
destination = h.overrideDestination
case 2:
newDestination := d.overrideDestination
newDestination := h.overrideDestination
newDestination.Port = destination.Port
destination = newDestination
case 3:
destination.Port = d.overrideDestination.Port
destination.Port = h.overrideDestination.Port
}
switch network {
case C.NetworkTCP:
d.logger.WithContext(ctx).Info("outbound connection to ", destination)
h.logger.WithContext(ctx).Info("outbound connection to ", destination)
case C.NetworkUDP:
d.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
}
return d.dialer.DialContext(ctx, network, destination)
return h.dialer.DialContext(ctx, network, destination)
}
func (d *Direct) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
d.logger.WithContext(ctx).Info("outbound packet connection")
return d.dialer.ListenPacket(ctx, destination)
func (h *Direct) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
h.logger.WithContext(ctx).Info("outbound packet connection")
return h.dialer.ListenPacket(ctx, destination)
}
func (d *Direct) NewConnection(ctx context.Context, conn net.Conn, destination M.Socksaddr) error {
outConn, err := d.DialContext(ctx, C.NetworkTCP, destination)
func (h *Direct) NewConnection(ctx context.Context, conn net.Conn, destination M.Socksaddr) error {
outConn, err := h.DialContext(ctx, C.NetworkTCP, destination)
if err != nil {
return err
}
return bufio.CopyConn(ctx, conn, outConn)
}
func (d *Direct) NewPacketConnection(ctx context.Context, conn N.PacketConn, destination M.Socksaddr) error {
outConn, err := d.ListenPacket(ctx, destination)
func (h *Direct) NewPacketConnection(ctx context.Context, conn N.PacketConn, destination M.Socksaddr) error {
outConn, err := h.ListenPacket(ctx, destination)
if err != nil {
return err
}

8
outbound/http.go
View file

@ -11,10 +11,10 @@ import (
"github.com/sagernet/sing/protocol/http"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/common/dialer"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"github.com/sagernet/sing-box/outbound/dialer"
)
var _ adapter.Outbound = (*HTTP)(nil)
@ -32,16 +32,20 @@ func NewHTTP(router adapter.Router, logger log.Logger, tag string, options optio
tag: tag,
network: []string{C.NetworkTCP},
},
http.NewClient(dialer.New(router, options.DialerOptions), M.ParseSocksaddrHostPort(options.Server, options.ServerPort), options.Username, options.Password),
http.NewClient(dialer.New(router, options.DialerOptions), options.ServerOptions.Build(), options.Username, options.Password),
}
}
func (h *HTTP) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
h.logger.WithContext(ctx).Info("outbound connection to ", destination)
return h.client.DialContext(ctx, network, destination)
}
func (h *HTTP) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
return nil, os.ErrInvalid
}

63
outbound/shadowsocks.go
View file

@ -5,7 +5,6 @@ import (
"net"
"github.com/sagernet/sing/common/bufio"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
@ -13,10 +12,10 @@ import (
"github.com/sagernet/sing-shadowsocks/shadowimpl"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/common/dialer"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"github.com/sagernet/sing-box/outbound/dialer"
)
var _ adapter.Outbound = (*Shadowsocks)(nil)
@ -29,69 +28,67 @@ type Shadowsocks struct {
}
func NewShadowsocks(router adapter.Router, logger log.Logger, tag string, options option.ShadowsocksOutboundOptions) (*Shadowsocks, error) {
outbound := &Shadowsocks{
myOutboundAdapter: myOutboundAdapter{
method, err := shadowimpl.FetchMethod(options.Method, options.Password)
if err != nil {
return nil, err
}
return &Shadowsocks{
myOutboundAdapter{
protocol: C.TypeDirect,
logger: logger,
tag: tag,
network: options.Network.Build(),
},
dialer: dialer.New(router, options.DialerOptions),
}
var err error
outbound.method, err = shadowimpl.FetchMethod(options.Method, options.Password)
if err != nil {
return nil, err
}
if options.Server == "" {
return nil, E.New("missing server address")
} else if options.ServerPort == 0 {
return nil, E.New("missing server port")
}
outbound.serverAddr = M.ParseSocksaddrHostPort(options.Server, options.ServerPort)
return outbound, nil
dialer.New(router, options.DialerOptions),
method,
options.ServerOptions.Build(),
}, nil
}
func (o *Shadowsocks) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
func (h *Shadowsocks) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
switch network {
case C.NetworkTCP:
o.logger.WithContext(ctx).Info("outbound connection to ", destination)
outConn, err := o.dialer.DialContext(ctx, C.NetworkTCP, o.serverAddr)
h.logger.WithContext(ctx).Info("outbound connection to ", destination)
outConn, err := h.dialer.DialContext(ctx, C.NetworkTCP, h.serverAddr)
if err != nil {
return nil, err
}
return o.method.DialEarlyConn(outConn, destination), nil
return h.method.DialEarlyConn(outConn, destination), nil
case C.NetworkUDP:
o.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
outConn, err := o.dialer.DialContext(ctx, C.NetworkUDP, o.serverAddr)
h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
outConn, err := h.dialer.DialContext(ctx, C.NetworkUDP, h.serverAddr)
if err != nil {
return nil, err
}
return &bufio.BindPacketConn{PacketConn: o.method.DialPacketConn(outConn), Addr: destination}, nil
return &bufio.BindPacketConn{PacketConn: h.method.DialPacketConn(outConn), Addr: destination}, nil
default:
panic("unknown network " + network)
}
}
func (o *Shadowsocks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
o.logger.WithContext(ctx).Info("outbound packet connection to ", o.serverAddr)
outConn, err := o.dialer.ListenPacket(ctx, destination)
func (h *Shadowsocks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
h.logger.WithContext(ctx).Info("outbound packet connection to ", h.serverAddr)
outConn, err := h.dialer.ListenPacket(ctx, destination)
if err != nil {
return nil, err
}
return o.method.DialPacketConn(&bufio.BindPacketConn{PacketConn: outConn, Addr: o.serverAddr.UDPAddr()}), nil
return h.method.DialPacketConn(&bufio.BindPacketConn{PacketConn: outConn, Addr: h.serverAddr.UDPAddr()}), nil
}
func (o *Shadowsocks) NewConnection(ctx context.Context, conn net.Conn, destination M.Socksaddr) error {
serverConn, err := o.DialContext(ctx, C.NetworkTCP, destination)
func (h *Shadowsocks) NewConnection(ctx context.Context, conn net.Conn, destination M.Socksaddr) error {
serverConn, err := h.DialContext(ctx, C.NetworkTCP, destination)
if err != nil {
return err
}
return CopyEarlyConn(ctx, conn, serverConn)
}
func (o *Shadowsocks) NewPacketConnection(ctx context.Context, conn N.PacketConn, destination M.Socksaddr) error {
serverConn, err := o.ListenPacket(ctx, destination)
func (h *Shadowsocks) NewPacketConnection(ctx context.Context, conn N.PacketConn, destination M.Socksaddr) error {
serverConn, err := h.ListenPacket(ctx, destination)
if err != nil {
return err
}

8
outbound/socks.go
View file

@ -10,10 +10,10 @@ import (
"github.com/sagernet/sing/protocol/socks"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/common/dialer"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"github.com/sagernet/sing-box/outbound/dialer"
)
var _ adapter.Outbound = (*Socks)(nil)
@ -42,11 +42,13 @@ func NewSocks(router adapter.Router, logger log.Logger, tag string, options opti
tag: tag,
network: options.Network.Build(),
},
socks.NewClient(detour, M.ParseSocksaddrHostPort(options.Server, options.ServerPort), version, options.Username, options.Password),
socks.NewClient(detour, options.ServerOptions.Build(), version, options.Username, options.Password),
}, nil
}
func (h *Socks) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
switch network {
case C.NetworkTCP:
h.logger.WithContext(ctx).Info("outbound connection to ", destination)
@ -59,6 +61,8 @@ func (h *Socks) DialContext(ctx context.Context, network string, destination M.S
}
func (h *Socks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
ctx, metadata := adapter.AppendContext(ctx)
metadata.Outbound = h.tag
h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
return h.client.ListenPacket(ctx, destination)
}

176
route/router.go
View file

@ -5,8 +5,10 @@ import (
"io"
"net"
"net/http"
"net/netip"
"os"
"path/filepath"
"strings"
"time"
"github.com/sagernet/sing/common"
@ -19,12 +21,16 @@ import (
"github.com/sagernet/sing/common/rw"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-box/common/dialer"
"github.com/sagernet/sing-box/common/geoip"
"github.com/sagernet/sing-box/common/geosite"
"github.com/sagernet/sing-box/common/sniff"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/dns"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
"golang.org/x/net/dns/dnsmessage"
)
var _ adapter.Router = (*Router)(nil)
@ -32,6 +38,7 @@ var _ adapter.Router = (*Router)(nil)
type Router struct {
ctx context.Context
logger log.Logger
dnsLogger log.Logger
outboundByTag map[string]adapter.Outbound
rules []adapter.Rule
@ -46,26 +53,116 @@ type Router struct {
geositeOptions option.GeositeOptions
geoIPReader *geoip.Reader
geositeReader *geosite.Reader
dnsClient adapter.DNSClient
defaultDomainStrategy C.DomainStrategy
defaultTransport adapter.DNSTransport
transports []adapter.DNSTransport
transportMap map[string]adapter.DNSTransport
}
func NewRouter(ctx context.Context, logger log.Logger, options option.RouteOptions) (*Router, error) {
func NewRouter(ctx context.Context, logger log.Logger, options option.RouteOptions, dnsOptions option.DNSOptions) (*Router, error) {
router := &Router{
ctx: ctx,
logger: logger.WithPrefix("router: "),
dnsLogger: logger.WithPrefix("dns: "),
outboundByTag: make(map[string]adapter.Outbound),
rules: make([]adapter.Rule, 0, len(options.Rules)),
needGeoIPDatabase: hasGeoRule(options.Rules, isGeoIPRule),
needGeositeDatabase: hasGeoRule(options.Rules, isGeositeRule),
needGeoIPDatabase: hasGeoRule(options.Rules, isGeoIPRule) || hasGeoDNSRule(dnsOptions.Rules, isGeoIPDNSRule),
needGeositeDatabase: hasGeoRule(options.Rules, isGeositeRule) || hasGeoDNSRule(dnsOptions.Rules, isGeositeDNSRule),
geoIPOptions: common.PtrValueOrDefault(options.GeoIP),
defaultDetour: options.DefaultDetour,
defaultDetour: options.Final,
dnsClient: dns.NewClient(dnsOptions.DNSClientOptions),
defaultDomainStrategy: C.DomainStrategy(dnsOptions.Strategy),
}
for i, ruleOptions := range options.Rules {
rule, err := NewRule(router, logger, ruleOptions)
routeRule, err := NewRule(router, logger, ruleOptions)
if err != nil {
return nil, E.Cause(err, "parse rule[", i, "]")
}
router.rules = append(router.rules, rule)
router.rules = append(router.rules, routeRule)
}
for i, dnsRuleOptions := range dnsOptions.Rules {
dnsRule, err := NewDNSRule(router, logger, dnsRuleOptions)
if err != nil {
return nil, E.Cause(err, "parse dns rule[", i, "]")
}
router.rules = append(router.rules, dnsRule)
}
transports := make([]adapter.DNSTransport, len(dnsOptions.Servers))
dummyTransportMap := make(map[string]adapter.DNSTransport)
transportMap := make(map[string]adapter.DNSTransport)
transportTags := make([]string, len(dnsOptions.Servers))
transportTagMap := make(map[string]bool)
for i, server := range dnsOptions.Servers {
var tag string
if server.Tag != "" {
tag = server.Tag
} else {
tag = F.ToString(i)
}
transportTags[i] = tag
transportTagMap[tag] = true
}
for {
lastLen := len(dummyTransportMap)
for i, server := range dnsOptions.Servers {
tag := transportTags[i]
if _, exists := dummyTransportMap[tag]; exists {
continue
}
detour := dialer.New(router, server.DialerOptions)
if server.AddressResolver != "" {
if !transportTagMap[server.AddressResolver] {
return nil, E.New("parse dns server[", tag, "]: address resolver not found: ", server.AddressResolver)
}
if upstream, exists := dummyTransportMap[server.AddressResolver]; exists {
detour = dns.NewDialerWrapper(detour, C.DomainStrategy(server.AddressStrategy), router.dnsClient, upstream)
} else {
continue
}
}
transport, err := dns.NewTransport(ctx, detour, logger, server.Address)
if err != nil {
return nil, E.Cause(err, "parse dns server[", tag, "]")
}
transports[i] = transport
dummyTransportMap[tag] = transport
if server.Tag != "" {
transportMap[server.Tag] = transport
}
}
if len(transports) == len(dummyTransportMap) {
break
}
if lastLen != len(dummyTransportMap) {
continue
}
unresolvedTags := common.MapIndexed(common.FilterIndexed(dnsOptions.Servers, func(index int, server option.DNSServerOptions) bool {
_, exists := dummyTransportMap[transportTags[index]]
return !exists
}), func(index int, server option.DNSServerOptions) string {
return transportTags[index]
})
return nil, E.New("found circular reference in dns servers: ", strings.Join(unresolvedTags, " "))
}
var defaultTransport adapter.DNSTransport
if options.Final != "" {
defaultTransport = dummyTransportMap[options.Final]
if defaultTransport == nil {
return nil, E.New("default dns server not found: ", options.Final)
}
}
if defaultTransport == nil {
if len(transports) == 0 {
transports = append(transports, dns.NewLocalTransport())
}
defaultTransport = transports[0]
}
router.defaultTransport = defaultTransport
router.transports = transports
router.transportMap = transportMap
return router, nil
}
@ -135,6 +232,11 @@ func (r *Router) Initialize(outbounds []adapter.Outbound, defaultOutbound func()
r.defaultOutboundForConnection = defaultOutboundForConnection
r.defaultOutboundForPacketConnection = defaultOutboundForPacketConnection
r.outboundByTag = outboundByTag
for i, rule := range r.rules {
if _, loaded := outboundByTag[rule.Outbound()]; !loaded {
return E.New("outbound not found for rule[", i, "]: ", rule.Outbound())
}
}
return nil
}
@ -228,7 +330,7 @@ func (r *Router) RouteConnection(ctx context.Context, conn net.Conn, metadata ad
conn.Close()
return E.New("missing supported outbound, closing connection")
}
return detour.NewConnection(ctx, conn, metadata.Destination)
return detour.NewConnection(adapter.WithContext(ctx, &metadata), conn, metadata.Destination)
}
func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
@ -262,7 +364,19 @@ func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, m
conn.Close()
return E.New("missing supported outbound, closing packet connection")
}
return detour.NewPacketConnection(ctx, conn, metadata.Destination)
return detour.NewPacketConnection(adapter.WithContext(ctx, &metadata), conn, metadata.Destination)
}
func (r *Router) Exchange(ctx context.Context, message *dnsmessage.Message) (*dnsmessage.Message, error) {
return r.dnsClient.Exchange(ctx, r.matchDNS(ctx), message)
}
func (r *Router) Lookup(ctx context.Context, domain string, strategy C.DomainStrategy) ([]netip.Addr, error) {
return r.dnsClient.Lookup(ctx, r.matchDNS(ctx), domain, strategy)
}
func (r *Router) LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error) {
return r.dnsClient.Lookup(ctx, r.matchDNS(ctx), domain, r.defaultDomainStrategy)
}
func (r *Router) match(ctx context.Context, metadata adapter.InboundContext, defaultOutbound adapter.Outbound) adapter.Outbound {
@ -280,6 +394,26 @@ func (r *Router) match(ctx context.Context, metadata adapter.InboundContext, def
return defaultOutbound
}
func (r *Router) matchDNS(ctx context.Context) adapter.DNSTransport {
metadata := adapter.ContextFrom(ctx)
if metadata == nil {
r.dnsLogger.WithContext(ctx).Info("no context")
return r.defaultTransport
}
for i, rule := range r.rules {
if rule.Match(metadata) {
detour := rule.Outbound()
r.dnsLogger.WithContext(ctx).Info("match[", i, "] ", rule.String(), " => ", detour)
if transport, loaded := r.transportMap[detour]; loaded {
return transport
}
r.dnsLogger.WithContext(ctx).Error("transport not found: ", detour)
}
}
r.dnsLogger.WithContext(ctx).Info("no match")
return r.defaultTransport
}
func hasGeoRule(rules []option.Rule, cond func(rule option.DefaultRule) bool) bool {
for _, rule := range rules {
switch rule.Type {
@ -298,14 +432,40 @@ func hasGeoRule(rules []option.Rule, cond func(rule option.DefaultRule) bool) bo
return false
}
func hasGeoDNSRule(rules []option.DNSRule, cond func(rule option.DefaultDNSRule) bool) bool {
for _, rule := range rules {
switch rule.Type {
case C.RuleTypeDefault:
if cond(rule.DefaultOptions) {
return true
}
case C.RuleTypeLogical:
for _, subRule := range rule.LogicalOptions.Rules {
if cond(subRule) {
return true
}
}
}
}
return false
}
func isGeoIPRule(rule option.DefaultRule) bool {
return len(rule.SourceGeoIP) > 0 && common.Any(rule.SourceGeoIP, notPrivateNode) || len(rule.GeoIP) > 0 && common.Any(rule.GeoIP, notPrivateNode)
}
func isGeoIPDNSRule(rule option.DefaultDNSRule) bool {
return len(rule.SourceGeoIP) > 0 && common.Any(rule.SourceGeoIP, notPrivateNode)
}
func isGeositeRule(rule option.DefaultRule) bool {
return len(rule.Geosite) > 0
}
func isGeositeDNSRule(rule option.DefaultDNSRule) bool {
return len(rule.Geosite) > 0
}
func notPrivateNode(code string) bool {
return code != "private"
}

88
route/rule.go
View file

@ -225,3 +225,91 @@ func (r *DefaultRule) Outbound() string {
func (r *DefaultRule) String() string {
return strings.Join(common.Map(r.allItems, F.ToString0[RuleItem]), " ")
}
var _ adapter.Rule = (*LogicalRule)(nil)
type LogicalRule struct {
mode string
rules []*DefaultRule
outbound string
}
func (r *LogicalRule) UpdateGeosite() error {
for _, rule := range r.rules {
err := rule.UpdateGeosite()
if err != nil {
return err
}
}
return nil
}
func (r *LogicalRule) Start() error {
for _, rule := range r.rules {
err := rule.Start()
if err != nil {
return err
}
}
return nil
}
func (r *LogicalRule) Close() error {
for _, rule := range r.rules {
err := rule.Close()
if err != nil {
return err
}
}
return nil
}
func NewLogicalRule(router adapter.Router, logger log.Logger, options option.LogicalRule) (*LogicalRule, error) {
r := &LogicalRule{
rules: make([]*DefaultRule, len(options.Rules)),
outbound: options.Outbound,
}
switch options.Mode {
case C.LogicalTypeAnd:
r.mode = C.LogicalTypeAnd
case C.LogicalTypeOr:
r.mode = C.LogicalTypeOr
default:
return nil, E.New("unknown logical mode: ", options.Mode)
}
for i, subRule := range options.Rules {
rule, err := NewDefaultRule(router, logger, subRule)
if err != nil {
return nil, E.Cause(err, "sub rule[", i, "]")
}
r.rules[i] = rule
}
return r, nil
}
func (r *LogicalRule) Match(metadata *adapter.InboundContext) bool {
if r.mode == C.LogicalTypeAnd {
return common.All(r.rules, func(it *DefaultRule) bool {
return it.Match(metadata)
})
} else {
return common.Any(r.rules, func(it *DefaultRule) bool {
return it.Match(metadata)
})
}
}
func (r *LogicalRule) Outbound() string {
return r.outbound
}
func (r *LogicalRule) String() string {
var op string
switch r.mode {
case C.LogicalTypeAnd:
op = "&&"
case C.LogicalTypeOr:
op = "||"
}
return "logical(" + strings.Join(common.Map(r.rules, F.ToString0[*DefaultRule]), " "+op+" ") + ")"
}

250
route/rule_dns.go Normal file
View file

@ -0,0 +1,250 @@
package route
import (
"strings"
"github.com/sagernet/sing/common"
E "github.com/sagernet/sing/common/exceptions"
F "github.com/sagernet/sing/common/format"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
)
func NewDNSRule(router adapter.Router, logger log.Logger, options option.DNSRule) (adapter.Rule, error) {
if common.IsEmptyByEquals(options) {
return nil, E.New("empty rule config")
}
switch options.Type {
case "", C.RuleTypeDefault:
if !options.DefaultOptions.IsValid() {
return nil, E.New("missing conditions")
}
if options.DefaultOptions.Server == "" {
return nil, E.New("missing server field")
}
return NewDefaultDNSRule(router, logger, options.DefaultOptions)
case C.RuleTypeLogical:
if !options.LogicalOptions.IsValid() {
return nil, E.New("missing conditions")
}
if options.LogicalOptions.Server == "" {
return nil, E.New("missing server field")
}
return NewLogicalDNSRule(router, logger, options.LogicalOptions)
default:
return nil, E.New("unknown rule type: ", options.Type)
}
}
var _ adapter.Rule = (*DefaultDNSRule)(nil)
type DefaultDNSRule struct {
items []RuleItem
outbound string
}
func NewDefaultDNSRule(router adapter.Router, logger log.Logger, options option.DefaultDNSRule) (*DefaultDNSRule, error) {
rule := &DefaultDNSRule{
outbound: options.Server,
}
if len(options.Inbound) > 0 {
item := NewInboundRule(options.Inbound)
rule.items = append(rule.items, item)
}
if options.Network != "" {
switch options.Network {
case C.NetworkTCP, C.NetworkUDP:
item := NewNetworkItem(options.Network)
rule.items = append(rule.items, item)
default:
return nil, E.New("invalid network: ", options.Network)
}
}
if len(options.Protocol) > 0 {
item := NewProtocolItem(options.Protocol)
rule.items = append(rule.items, item)
}
if len(options.Domain) > 0 || len(options.DomainSuffix) > 0 {
item := NewDomainItem(options.Domain, options.DomainSuffix)
rule.items = append(rule.items, item)
}
if len(options.DomainKeyword) > 0 {
item := NewDomainKeywordItem(options.DomainKeyword)
rule.items = append(rule.items, item)
}
if len(options.DomainRegex) > 0 {
item, err := NewDomainRegexItem(options.DomainRegex)
if err != nil {
return nil, E.Cause(err, "domain_regex")
}
rule.items = append(rule.items, item)
}
if len(options.Geosite) > 0 {
item := NewGeositeItem(router, logger, options.Geosite)
rule.items = append(rule.items, item)
}
if len(options.SourceGeoIP) > 0 {
item := NewGeoIPItem(router, logger, true, options.SourceGeoIP)
rule.items = append(rule.items, item)
}
if len(options.SourceIPCIDR) > 0 {
item, err := NewIPCIDRItem(true, options.SourceIPCIDR)
if err != nil {
return nil, E.Cause(err, "source_ipcidr")
}
rule.items = append(rule.items, item)
}
if len(options.SourcePort) > 0 {
item := NewPortItem(true, options.SourcePort)
rule.items = append(rule.items, item)
}
if len(options.Port) > 0 {
item := NewPortItem(false, options.Port)
rule.items = append(rule.items, item)
}
if len(options.Outbound) > 0 {
item := NewOutboundRule(options.Outbound)
rule.items = append(rule.items, item)
}
return rule, nil
}
func (r *DefaultDNSRule) Start() error {
for _, item := range r.items {
err := common.Start(item)
if err != nil {
return err
}
}
return nil
}
func (r *DefaultDNSRule) Close() error {
for _, item := range r.items {
err := common.Close(item)
if err != nil {
return err
}
}
return nil
}
func (r *DefaultDNSRule) UpdateGeosite() error {
for _, item := range r.items {
if geositeItem, isSite := item.(*GeositeItem); isSite {
err := geositeItem.Update()
if err != nil {
return err
}
}
}
return nil
}
func (r *DefaultDNSRule) Match(metadata *adapter.InboundContext) bool {
for _, item := range r.items {
if !item.Match(metadata) {
return false
}
}
return true
}
func (r *DefaultDNSRule) Outbound() string {
return r.outbound
}
func (r *DefaultDNSRule) String() string {
return strings.Join(common.Map(r.items, F.ToString0[RuleItem]), " ")
}
var _ adapter.Rule = (*LogicalRule)(nil)
type LogicalDNSRule struct {
mode string
rules []*DefaultDNSRule
outbound string
}
func (r *LogicalDNSRule) UpdateGeosite() error {
for _, rule := range r.rules {
err := rule.UpdateGeosite()
if err != nil {
return err
}
}
return nil
}
func (r *LogicalDNSRule) Start() error {
for _, rule := range r.rules {
err := rule.Start()
if err != nil {
return err
}
}
return nil
}
func (r *LogicalDNSRule) Close() error {
for _, rule := range r.rules {
err := rule.Close()
if err != nil {
return err
}
}
return nil
}
func NewLogicalDNSRule(router adapter.Router, logger log.Logger, options option.LogicalDNSRule) (*LogicalDNSRule, error) {
r := &LogicalDNSRule{
rules: make([]*DefaultDNSRule, len(options.Rules)),
outbound: options.Server,
}
switch options.Mode {
case C.LogicalTypeAnd:
r.mode = C.LogicalTypeAnd
case C.LogicalTypeOr:
r.mode = C.LogicalTypeOr
default:
return nil, E.New("unknown logical mode: ", options.Mode)
}
for i, subRule := range options.Rules {
rule, err := NewDefaultDNSRule(router, logger, subRule)
if err != nil {
return nil, E.Cause(err, "sub rule[", i, "]")
}
r.rules[i] = rule
}
return r, nil
}
func (r *LogicalDNSRule) Match(metadata *adapter.InboundContext) bool {
if r.mode == C.LogicalTypeAnd {
return common.All(r.rules, func(it *DefaultDNSRule) bool {
return it.Match(metadata)
})
} else {
return common.Any(r.rules, func(it *DefaultDNSRule) bool {
return it.Match(metadata)
})
}
}
func (r *LogicalDNSRule) Outbound() string {
return r.outbound
}
func (r *LogicalDNSRule) String() string {
var op string
switch r.mode {
case C.LogicalTypeAnd:
op = "&&"
case C.LogicalTypeOr:
op = "||"
}
return "logical(" + strings.Join(common.Map(r.rules, F.ToString0[*DefaultDNSRule]), " "+op+" ") + ")"
}

102
route/rule_logical.go
View file

@ -1,102 +0,0 @@
package route
import (
"strings"
"github.com/sagernet/sing/common"
E "github.com/sagernet/sing/common/exceptions"
F "github.com/sagernet/sing/common/format"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
)
var _ adapter.Rule = (*LogicalRule)(nil)
type LogicalRule struct {
mode string
rules []*DefaultRule
outbound string
}
func (r *LogicalRule) UpdateGeosite() error {
for _, rule := range r.rules {
err := rule.UpdateGeosite()
if err != nil {
return err
}
}
return nil
}
func (r *LogicalRule) Start() error {
for _, rule := range r.rules {
err := rule.Start()
if err != nil {
return err
}
}
return nil
}
func (r *LogicalRule) Close() error {
for _, rule := range r.rules {
err := rule.Close()
if err != nil {
return err
}
}
return nil
}
func NewLogicalRule(router adapter.Router, logger log.Logger, options option.LogicalRule) (*LogicalRule, error) {
r := &LogicalRule{
rules: make([]*DefaultRule, len(options.Rules)),
outbound: options.Outbound,
}
switch options.Mode {
case C.LogicalTypeAnd:
r.mode = C.LogicalTypeAnd
case C.LogicalTypeOr:
r.mode = C.LogicalTypeOr
default:
return nil, E.New("unknown logical mode: ", options.Mode)
}
for i, subRule := range options.Rules {
rule, err := NewDefaultRule(router, logger, subRule)
if err != nil {
return nil, E.Cause(err, "sub rule[", i, "]")
}
r.rules[i] = rule
}
return r, nil
}
func (r *LogicalRule) Match(metadata *adapter.InboundContext) bool {
if r.mode == C.LogicalTypeAnd {
return common.All(r.rules, func(it *DefaultRule) bool {
return it.Match(metadata)
})
} else {
return common.Any(r.rules, func(it *DefaultRule) bool {
return it.Match(metadata)
})
}
}
func (r *LogicalRule) Outbound() string {
return r.outbound
}
func (r *LogicalRule) String() string {
var op string
switch r.mode {
case C.LogicalTypeAnd:
op = "&&"
case C.LogicalTypeOr:
op = "||"
}
return "logical(" + strings.Join(common.Map(r.rules, F.ToString0[*DefaultRule]), " "+op+" ") + ")"
}

36
route/rule_outbound.go Normal file
View file

@ -0,0 +1,36 @@
package route
import (
"strings"
F "github.com/sagernet/sing/common/format"
"github.com/sagernet/sing-box/adapter"
)
var _ RuleItem = (*OutboundItem)(nil)
type OutboundItem struct {
outbounds []string
outboundMap map[string]bool
}
func NewOutboundRule(outbounds []string) *OutboundItem {
rule := &OutboundItem{outbounds, make(map[string]bool)}
for _, outbound := range outbounds {
rule.outboundMap[outbound] = true
}
return rule
}
func (r *OutboundItem) Match(metadata *adapter.InboundContext) bool {
return r.outboundMap[metadata.Outbound]
}
func (r *OutboundItem) String() string {
if len(r.outbounds) == 1 {
return F.ToString("outbound=", r.outbounds[0])
} else {
return F.ToString("outbound=[", strings.Join(r.outbounds, " "), "]")
}
}