mirror of
https://github.com/XTLS/Xray-core.git
synced 2025-04-30 01:08:33 +00:00
Add shadowsocks-2022 inbound/outbound (#1061)
This commit is contained in:
世界
GitHub
parent
3f64f3206c
commit
087f0d1240
11 changed files with 897 additions and 35 deletions
283
proxy/shadowsocks_2022/config.pb.go
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283
proxy/shadowsocks_2022/config.pb.go
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@ -0,0 +1,283 @@
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// Code generated by protoc-gen-go. DO NOT EDIT.
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// versions:
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// protoc-gen-go v1.28.0
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// protoc v3.20.1
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// source: proxy/shadowsocks_2022/config.proto
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package shadowsocks_2022
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import (
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net "github.com/xtls/xray-core/common/net"
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protoreflect "google.golang.org/protobuf/reflect/protoreflect"
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protoimpl "google.golang.org/protobuf/runtime/protoimpl"
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reflect "reflect"
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sync "sync"
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)
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const (
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// Verify that this generated code is sufficiently up-to-date.
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_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
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// Verify that runtime/protoimpl is sufficiently up-to-date.
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_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
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)
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type ServerConfig struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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Method string `protobuf:"bytes,1,opt,name=method,proto3" json:"method,omitempty"`
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Key string `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`
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Network []net.Network `protobuf:"varint,3,rep,packed,name=network,proto3,enum=xray.common.net.Network" json:"network,omitempty"`
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}
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func (x *ServerConfig) Reset() {
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*x = ServerConfig{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[0]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *ServerConfig) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*ServerConfig) ProtoMessage() {}
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func (x *ServerConfig) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[0]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use ServerConfig.ProtoReflect.Descriptor instead.
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func (*ServerConfig) Descriptor() ([]byte, []int) {
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return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{0}
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}
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func (x *ServerConfig) GetMethod() string {
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if x != nil {
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return x.Method
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}
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return ""
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}
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func (x *ServerConfig) GetKey() string {
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if x != nil {
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return x.Key
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}
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return ""
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}
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func (x *ServerConfig) GetNetwork() []net.Network {
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if x != nil {
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return x.Network
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}
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return nil
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}
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type ClientConfig struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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Address *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
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Port uint32 `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
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Method string `protobuf:"bytes,3,opt,name=method,proto3" json:"method,omitempty"`
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Key string `protobuf:"bytes,4,opt,name=key,proto3" json:"key,omitempty"`
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ReducedIvHeadEntropy bool `protobuf:"varint,5,opt,name=reduced_iv_head_entropy,json=reducedIvHeadEntropy,proto3" json:"reduced_iv_head_entropy,omitempty"`
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}
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func (x *ClientConfig) Reset() {
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*x = ClientConfig{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[1]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *ClientConfig) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*ClientConfig) ProtoMessage() {}
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func (x *ClientConfig) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_shadowsocks_2022_config_proto_msgTypes[1]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use ClientConfig.ProtoReflect.Descriptor instead.
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func (*ClientConfig) Descriptor() ([]byte, []int) {
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return file_proxy_shadowsocks_2022_config_proto_rawDescGZIP(), []int{1}
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}
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func (x *ClientConfig) GetAddress() *net.IPOrDomain {
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if x != nil {
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return x.Address
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}
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return nil
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}
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func (x *ClientConfig) GetPort() uint32 {
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if x != nil {
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return x.Port
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}
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return 0
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}
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func (x *ClientConfig) GetMethod() string {
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if x != nil {
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return x.Method
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}
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return ""
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}
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func (x *ClientConfig) GetKey() string {
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if x != nil {
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return x.Key
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}
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return ""
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}
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func (x *ClientConfig) GetReducedIvHeadEntropy() bool {
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if x != nil {
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return x.ReducedIvHeadEntropy
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}
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return false
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}
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var File_proxy_shadowsocks_2022_config_proto protoreflect.FileDescriptor
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var file_proxy_shadowsocks_2022_config_proto_rawDesc = []byte{
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||||
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||||
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||||
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||||
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|
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||||
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}
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var (
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file_proxy_shadowsocks_2022_config_proto_rawDescOnce sync.Once
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file_proxy_shadowsocks_2022_config_proto_rawDescData = file_proxy_shadowsocks_2022_config_proto_rawDesc
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)
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func file_proxy_shadowsocks_2022_config_proto_rawDescGZIP() []byte {
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file_proxy_shadowsocks_2022_config_proto_rawDescOnce.Do(func() {
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file_proxy_shadowsocks_2022_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_proxy_shadowsocks_2022_config_proto_rawDescData)
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})
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return file_proxy_shadowsocks_2022_config_proto_rawDescData
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}
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var file_proxy_shadowsocks_2022_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
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var file_proxy_shadowsocks_2022_config_proto_goTypes = []interface{}{
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(*ServerConfig)(nil), // 0: xray.proxy.shadowsocks_2022.ServerConfig
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(*ClientConfig)(nil), // 1: xray.proxy.shadowsocks_2022.ClientConfig
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(net.Network)(0), // 2: xray.common.net.Network
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(*net.IPOrDomain)(nil), // 3: xray.common.net.IPOrDomain
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}
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var file_proxy_shadowsocks_2022_config_proto_depIdxs = []int32{
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2, // 0: xray.proxy.shadowsocks_2022.ServerConfig.network:type_name -> xray.common.net.Network
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3, // 1: xray.proxy.shadowsocks_2022.ClientConfig.address:type_name -> xray.common.net.IPOrDomain
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||||
2, // [2:2] is the sub-list for method output_type
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||||
2, // [2:2] is the sub-list for method input_type
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2, // [2:2] is the sub-list for extension type_name
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||||
2, // [2:2] is the sub-list for extension extendee
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0, // [0:2] is the sub-list for field type_name
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}
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func init() { file_proxy_shadowsocks_2022_config_proto_init() }
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func file_proxy_shadowsocks_2022_config_proto_init() {
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if File_proxy_shadowsocks_2022_config_proto != nil {
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return
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||||
}
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if !protoimpl.UnsafeEnabled {
|
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file_proxy_shadowsocks_2022_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
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switch v := v.(*ServerConfig); i {
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case 0:
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return &v.state
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case 1:
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return &v.sizeCache
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case 2:
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||||
return &v.unknownFields
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default:
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||||
return nil
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||||
}
|
||||
}
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||||
file_proxy_shadowsocks_2022_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
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||||
switch v := v.(*ClientConfig); i {
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||||
case 0:
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||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
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||||
return nil
|
||||
}
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||||
}
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||||
}
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||||
type x struct{}
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out := protoimpl.TypeBuilder{
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||||
File: protoimpl.DescBuilder{
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_proxy_shadowsocks_2022_config_proto_rawDesc,
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||||
NumEnums: 0,
|
||||
NumMessages: 2,
|
||||
NumExtensions: 0,
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||||
NumServices: 0,
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||||
},
|
||||
GoTypes: file_proxy_shadowsocks_2022_config_proto_goTypes,
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||||
DependencyIndexes: file_proxy_shadowsocks_2022_config_proto_depIdxs,
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||||
MessageInfos: file_proxy_shadowsocks_2022_config_proto_msgTypes,
|
||||
}.Build()
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||||
File_proxy_shadowsocks_2022_config_proto = out.File
|
||||
file_proxy_shadowsocks_2022_config_proto_rawDesc = nil
|
||||
file_proxy_shadowsocks_2022_config_proto_goTypes = nil
|
||||
file_proxy_shadowsocks_2022_config_proto_depIdxs = nil
|
||||
}
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||||
24
proxy/shadowsocks_2022/config.proto
Normal file
24
proxy/shadowsocks_2022/config.proto
Normal file
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|
@ -0,0 +1,24 @@
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|||
syntax = "proto3";
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||||
|
||||
package xray.proxy.shadowsocks_2022;
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||||
option csharp_namespace = "Xray.Proxy.Shadowsocks2022";
|
||||
option go_package = "github.com/xtls/xray-core/proxy/shadowsocks_2022";
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||||
option java_package = "com.xray.proxy.shadowsocks_2022";
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||||
option java_multiple_files = true;
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||||
|
||||
import "common/net/network.proto";
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||||
import "common/net/address.proto";
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||||
|
||||
message ServerConfig {
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||||
string method = 1;
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||||
string key = 2;
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||||
repeated xray.common.net.Network network = 3;
|
||||
}
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||||
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||||
message ClientConfig {
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||||
xray.common.net.IPOrDomain address = 1;
|
||||
uint32 port = 2;
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||||
string method = 3;
|
||||
string key = 4;
|
||||
bool reduced_iv_head_entropy = 5;
|
||||
}
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||||
9
proxy/shadowsocks_2022/errors.generated.go
Normal file
9
proxy/shadowsocks_2022/errors.generated.go
Normal file
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|
@ -0,0 +1,9 @@
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|||
package shadowsocks_2022
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||||
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||||
import "github.com/xtls/xray-core/common/errors"
|
||||
|
||||
type errPathObjHolder struct{}
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||||
|
||||
func newError(values ...interface{}) *errors.Error {
|
||||
return errors.New(values...).WithPathObj(errPathObjHolder{})
|
||||
}
|
||||
158
proxy/shadowsocks_2022/inbound.go
Normal file
158
proxy/shadowsocks_2022/inbound.go
Normal file
|
|
@ -0,0 +1,158 @@
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|||
package shadowsocks_2022
|
||||
|
||||
import (
|
||||
"context"
|
||||
"encoding/base64"
|
||||
|
||||
C "github.com/sagernet/sing/common"
|
||||
B "github.com/sagernet/sing/common/buf"
|
||||
"github.com/sagernet/sing/common/bufio"
|
||||
M "github.com/sagernet/sing/common/metadata"
|
||||
N "github.com/sagernet/sing/common/network"
|
||||
"github.com/sagernet/sing/common/random"
|
||||
"github.com/sagernet/sing/protocol/shadowsocks"
|
||||
"github.com/sagernet/sing/protocol/shadowsocks/shadowaead_2022"
|
||||
"github.com/xtls/xray-core/common"
|
||||
"github.com/xtls/xray-core/common/buf"
|
||||
"github.com/xtls/xray-core/common/log"
|
||||
"github.com/xtls/xray-core/common/net"
|
||||
"github.com/xtls/xray-core/common/session"
|
||||
"github.com/xtls/xray-core/features/routing"
|
||||
"github.com/xtls/xray-core/transport/internet/stat"
|
||||
)
|
||||
|
||||
func init() {
|
||||
common.Must(common.RegisterConfig((*ServerConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
|
||||
return NewServer(ctx, config.(*ServerConfig))
|
||||
}))
|
||||
}
|
||||
|
||||
type Inbound struct {
|
||||
networks []net.Network
|
||||
service shadowsocks.Service
|
||||
}
|
||||
|
||||
func NewServer(ctx context.Context, config *ServerConfig) (*Inbound, error) {
|
||||
networks := config.Network
|
||||
if len(networks) == 0 {
|
||||
networks = []net.Network{
|
||||
net.Network_TCP,
|
||||
net.Network_UDP,
|
||||
}
|
||||
}
|
||||
inbound := &Inbound{
|
||||
networks: networks,
|
||||
}
|
||||
if !C.Contains(shadowaead_2022.List, config.Method) {
|
||||
return nil, newError("unsupported method ", config.Method)
|
||||
}
|
||||
if config.Key == "" {
|
||||
return nil, newError("missing key")
|
||||
}
|
||||
psk, err := base64.StdEncoding.DecodeString(config.Key)
|
||||
if err != nil {
|
||||
return nil, newError("parse config").Base(err)
|
||||
}
|
||||
service, err := shadowaead_2022.NewService(config.Method, psk, "", random.Default, 500, inbound)
|
||||
if err != nil {
|
||||
return nil, newError("create service").Base(err)
|
||||
}
|
||||
inbound.service = service
|
||||
return inbound, nil
|
||||
}
|
||||
|
||||
func (i *Inbound) Network() []net.Network {
|
||||
return i.networks
|
||||
}
|
||||
|
||||
func (i *Inbound) Process(ctx context.Context, network net.Network, connection stat.Connection, dispatcher routing.Dispatcher) error {
|
||||
inbound := session.InboundFromContext(ctx)
|
||||
if inbound == nil {
|
||||
panic("no inbound metadata")
|
||||
}
|
||||
|
||||
var metadata M.Metadata
|
||||
if inbound.Source.IsValid() {
|
||||
metadata.Source = M.ParseSocksaddr(inbound.Source.NetAddr())
|
||||
}
|
||||
|
||||
ctx = session.ContextWithDispatcher(ctx, dispatcher)
|
||||
|
||||
if network == net.Network_TCP {
|
||||
return i.service.NewConnection(ctx, connection, metadata)
|
||||
} else {
|
||||
reader := buf.NewReader(connection)
|
||||
pc := &natPacketConn{connection}
|
||||
for {
|
||||
mb, err := reader.ReadMultiBuffer()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
for _, buffer := range mb {
|
||||
err = i.service.NewPacket(ctx, pc, B.As(buffer.Bytes()), metadata)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (i *Inbound) NewConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error {
|
||||
ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
|
||||
From: metadata.Source,
|
||||
To: metadata.Destination,
|
||||
Status: log.AccessAccepted,
|
||||
})
|
||||
newError("tunnelling request to tcp:", metadata.Destination).WriteToLog(session.ExportIDToError(ctx))
|
||||
dispatcher := session.DispatcherFromContext(ctx)
|
||||
link, err := dispatcher.Dispatch(ctx, toDestination(metadata.Destination, net.Network_TCP))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
outConn := &pipeConnWrapper{
|
||||
&buf.BufferedReader{Reader: link.Reader},
|
||||
link.Writer,
|
||||
conn,
|
||||
}
|
||||
return bufio.CopyConn(ctx, conn, outConn)
|
||||
}
|
||||
|
||||
func (i *Inbound) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata M.Metadata) error {
|
||||
ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
|
||||
From: metadata.Source,
|
||||
To: metadata.Destination,
|
||||
Status: log.AccessAccepted,
|
||||
})
|
||||
newError("tunnelling request to udp:", metadata.Destination).WriteToLog(session.ExportIDToError(ctx))
|
||||
dispatcher := session.DispatcherFromContext(ctx)
|
||||
destination := toDestination(metadata.Destination, net.Network_UDP)
|
||||
link, err := dispatcher.Dispatch(ctx, destination)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
outConn := &packetConnWrapper{
|
||||
Reader: link.Reader,
|
||||
Writer: link.Writer,
|
||||
Dest: destination,
|
||||
}
|
||||
return bufio.CopyPacketConn(ctx, conn, outConn)
|
||||
}
|
||||
|
||||
func (i *Inbound) HandleError(err error) {
|
||||
newError(err).AtWarning().WriteToLog()
|
||||
}
|
||||
|
||||
type natPacketConn struct {
|
||||
net.Conn
|
||||
}
|
||||
|
||||
func (c *natPacketConn) ReadPacket(buffer *B.Buffer) (addr M.Socksaddr, err error) {
|
||||
_, err = buffer.ReadFrom(c)
|
||||
return
|
||||
}
|
||||
|
||||
func (c *natPacketConn) WritePacket(buffer *B.Buffer, addr M.Socksaddr) error {
|
||||
_, err := buffer.WriteTo(c)
|
||||
return err
|
||||
}
|
||||
166
proxy/shadowsocks_2022/outbound.go
Normal file
166
proxy/shadowsocks_2022/outbound.go
Normal file
|
|
@ -0,0 +1,166 @@
|
|||
package shadowsocks_2022
|
||||
|
||||
import (
|
||||
"context"
|
||||
"encoding/base64"
|
||||
"io"
|
||||
"runtime"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
C "github.com/sagernet/sing/common"
|
||||
B "github.com/sagernet/sing/common/buf"
|
||||
"github.com/sagernet/sing/common/bufio"
|
||||
N "github.com/sagernet/sing/common/network"
|
||||
"github.com/sagernet/sing/common/random"
|
||||
"github.com/sagernet/sing/protocol/shadowsocks"
|
||||
"github.com/sagernet/sing/protocol/shadowsocks/shadowaead_2022"
|
||||
"github.com/xtls/xray-core/common"
|
||||
"github.com/xtls/xray-core/common/buf"
|
||||
"github.com/xtls/xray-core/common/net"
|
||||
"github.com/xtls/xray-core/common/session"
|
||||
"github.com/xtls/xray-core/transport"
|
||||
"github.com/xtls/xray-core/transport/internet"
|
||||
)
|
||||
|
||||
func init() {
|
||||
common.Must(common.RegisterConfig((*ClientConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
|
||||
return NewClient(ctx, config.(*ClientConfig))
|
||||
}))
|
||||
}
|
||||
|
||||
type Outbound struct {
|
||||
ctx context.Context
|
||||
server net.Destination
|
||||
method shadowsocks.Method
|
||||
}
|
||||
|
||||
func NewClient(ctx context.Context, config *ClientConfig) (*Outbound, error) {
|
||||
o := &Outbound{
|
||||
ctx: ctx,
|
||||
server: net.Destination{
|
||||
Address: config.Address.AsAddress(),
|
||||
Port: net.Port(config.Port),
|
||||
Network: net.Network_TCP,
|
||||
},
|
||||
}
|
||||
if C.Contains(shadowaead_2022.List, config.Method) {
|
||||
if config.Key == "" {
|
||||
return nil, newError("missing psk")
|
||||
}
|
||||
var pskList [][]byte
|
||||
for _, ks := range strings.Split(config.Key, ":") {
|
||||
psk, err := base64.StdEncoding.DecodeString(ks)
|
||||
if err != nil {
|
||||
return nil, newError("decode key ", ks).Base(err)
|
||||
}
|
||||
pskList = append(pskList, psk)
|
||||
}
|
||||
var rng io.Reader = random.Default
|
||||
if config.ReducedIvHeadEntropy {
|
||||
rng = &shadowsocks.ReducedEntropyReader{
|
||||
Reader: rng,
|
||||
}
|
||||
}
|
||||
method, err := shadowaead_2022.New(config.Method, pskList, "", rng)
|
||||
if err != nil {
|
||||
return nil, newError("create method").Base(err)
|
||||
}
|
||||
o.method = method
|
||||
} else {
|
||||
return nil, newError("unknown method ", config.Method)
|
||||
}
|
||||
return o, nil
|
||||
}
|
||||
|
||||
func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
|
||||
var inboundConn net.Conn
|
||||
inbound := session.InboundFromContext(ctx)
|
||||
if inbound != nil {
|
||||
inboundConn = inbound.Conn
|
||||
}
|
||||
|
||||
outbound := session.OutboundFromContext(ctx)
|
||||
if outbound == nil || !outbound.Target.IsValid() {
|
||||
return newError("target not specified")
|
||||
}
|
||||
/*if statConn, ok := inboundConn.(*internet.StatCounterConn); ok {
|
||||
inboundConn = statConn.Connection
|
||||
}*/
|
||||
destination := outbound.Target
|
||||
network := destination.Network
|
||||
|
||||
newError("tunneling request to ", destination, " via ", o.server.NetAddr()).WriteToLog(session.ExportIDToError(ctx))
|
||||
|
||||
serverDestination := o.server
|
||||
serverDestination.Network = network
|
||||
connection, err := dialer.Dial(ctx, serverDestination)
|
||||
if err != nil {
|
||||
return newError("failed to connect to server").Base(err)
|
||||
}
|
||||
|
||||
if network == net.Network_TCP {
|
||||
serverConn := o.method.DialEarlyConn(connection, toSocksaddr(destination))
|
||||
var handshake bool
|
||||
if timeoutReader, isTimeoutReader := link.Reader.(buf.TimeoutReader); isTimeoutReader {
|
||||
mb, err := timeoutReader.ReadMultiBufferTimeout(time.Millisecond * 100)
|
||||
if err != nil && err != buf.ErrNotTimeoutReader && err != buf.ErrReadTimeout {
|
||||
return newError("read payload").Base(err)
|
||||
}
|
||||
_payload := B.StackNew()
|
||||
payload := C.Dup(_payload)
|
||||
for {
|
||||
payload.FullReset()
|
||||
nb, n := buf.SplitBytes(mb, payload.FreeBytes())
|
||||
if n > 0 {
|
||||
payload.Truncate(n)
|
||||
_, err = serverConn.Write(payload.Bytes())
|
||||
if err != nil {
|
||||
return newError("write payload").Base(err)
|
||||
}
|
||||
handshake = true
|
||||
}
|
||||
if nb.IsEmpty() {
|
||||
break
|
||||
} else {
|
||||
mb = nb
|
||||
}
|
||||
}
|
||||
runtime.KeepAlive(_payload)
|
||||
}
|
||||
if !handshake {
|
||||
_, err = serverConn.Write(nil)
|
||||
if err != nil {
|
||||
return newError("client handshake").Base(err)
|
||||
}
|
||||
}
|
||||
conn := &pipeConnWrapper{
|
||||
W: link.Writer,
|
||||
Conn: inboundConn,
|
||||
}
|
||||
if ir, ok := link.Reader.(io.Reader); ok {
|
||||
conn.R = ir
|
||||
} else {
|
||||
conn.R = &buf.BufferedReader{Reader: link.Reader}
|
||||
}
|
||||
|
||||
return bufio.CopyConn(ctx, conn, serverConn)
|
||||
} else {
|
||||
var packetConn N.PacketConn
|
||||
if pc, isPacketConn := inboundConn.(N.PacketConn); isPacketConn {
|
||||
packetConn = pc
|
||||
} else if nc, isNetPacket := inboundConn.(net.PacketConn); isNetPacket {
|
||||
packetConn = &bufio.PacketConnWrapper{PacketConn: nc}
|
||||
} else {
|
||||
packetConn = &packetConnWrapper{
|
||||
Reader: link.Reader,
|
||||
Writer: link.Writer,
|
||||
Conn: inboundConn,
|
||||
Dest: destination,
|
||||
}
|
||||
}
|
||||
|
||||
serverConn := o.method.DialPacketConn(connection)
|
||||
return bufio.CopyPacketConn(ctx, packetConn, serverConn)
|
||||
}
|
||||
}
|
||||
143
proxy/shadowsocks_2022/shadowsocks_2022.go
Normal file
143
proxy/shadowsocks_2022/shadowsocks_2022.go
Normal file
|
|
@ -0,0 +1,143 @@
|
|||
package shadowsocks_2022
|
||||
|
||||
import (
|
||||
"io"
|
||||
|
||||
B "github.com/sagernet/sing/common/buf"
|
||||
M "github.com/sagernet/sing/common/metadata"
|
||||
"github.com/xtls/xray-core/common"
|
||||
"github.com/xtls/xray-core/common/buf"
|
||||
"github.com/xtls/xray-core/common/net"
|
||||
)
|
||||
|
||||
//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
|
||||
|
||||
func toDestination(socksaddr M.Socksaddr, network net.Network) net.Destination {
|
||||
if socksaddr.Family().IsFqdn() {
|
||||
return net.Destination{
|
||||
Network: network,
|
||||
Address: net.DomainAddress(socksaddr.Fqdn),
|
||||
Port: net.Port(socksaddr.Port),
|
||||
}
|
||||
} else {
|
||||
return net.Destination{
|
||||
Network: network,
|
||||
Address: net.IPAddress(socksaddr.Addr.AsSlice()),
|
||||
Port: net.Port(socksaddr.Port),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func toSocksaddr(destination net.Destination) M.Socksaddr {
|
||||
var addr M.Socksaddr
|
||||
switch destination.Address.Family() {
|
||||
case net.AddressFamilyDomain:
|
||||
addr.Fqdn = destination.Address.Domain()
|
||||
default:
|
||||
addr.Addr = M.AddrFromIP(destination.Address.IP())
|
||||
}
|
||||
addr.Port = uint16(destination.Port)
|
||||
return addr
|
||||
}
|
||||
|
||||
type pipeConnWrapper struct {
|
||||
R io.Reader
|
||||
W buf.Writer
|
||||
net.Conn
|
||||
}
|
||||
|
||||
func (w *pipeConnWrapper) Close() error {
|
||||
common.Interrupt(w.R)
|
||||
common.Interrupt(w.W)
|
||||
common.Close(w.Conn)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (w *pipeConnWrapper) Read(b []byte) (n int, err error) {
|
||||
return w.R.Read(b)
|
||||
}
|
||||
|
||||
func (w *pipeConnWrapper) Write(p []byte) (n int, err error) {
|
||||
n = len(p)
|
||||
var mb buf.MultiBuffer
|
||||
pLen := len(p)
|
||||
for pLen > 0 {
|
||||
buffer := buf.New()
|
||||
if pLen > buf.Size {
|
||||
_, err = buffer.Write(p[:buf.Size])
|
||||
p = p[buf.Size:]
|
||||
} else {
|
||||
buffer.Write(p)
|
||||
}
|
||||
pLen -= int(buffer.Len())
|
||||
mb = append(mb, buffer)
|
||||
}
|
||||
err = w.W.WriteMultiBuffer(mb)
|
||||
if err != nil {
|
||||
n = 0
|
||||
buf.ReleaseMulti(mb)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
type packetConnWrapper struct {
|
||||
buf.Reader
|
||||
buf.Writer
|
||||
net.Conn
|
||||
Dest net.Destination
|
||||
cached buf.MultiBuffer
|
||||
}
|
||||
|
||||
func (w *packetConnWrapper) ReadPacket(buffer *B.Buffer) (M.Socksaddr, error) {
|
||||
if w.cached != nil {
|
||||
mb, bb := buf.SplitFirst(w.cached)
|
||||
if bb == nil {
|
||||
w.cached = nil
|
||||
} else {
|
||||
buffer.Write(bb.Bytes())
|
||||
w.cached = mb
|
||||
var destination net.Destination
|
||||
if bb.UDP != nil {
|
||||
destination = *bb.UDP
|
||||
} else {
|
||||
destination = w.Dest
|
||||
}
|
||||
bb.Release()
|
||||
return toSocksaddr(destination), nil
|
||||
}
|
||||
}
|
||||
mb, err := w.ReadMultiBuffer()
|
||||
if err != nil {
|
||||
return M.Socksaddr{}, err
|
||||
}
|
||||
nb, bb := buf.SplitFirst(mb)
|
||||
if bb == nil {
|
||||
return M.Socksaddr{}, nil
|
||||
} else {
|
||||
buffer.Write(bb.Bytes())
|
||||
w.cached = nb
|
||||
var destination net.Destination
|
||||
if bb.UDP != nil {
|
||||
destination = *bb.UDP
|
||||
} else {
|
||||
destination = w.Dest
|
||||
}
|
||||
bb.Release()
|
||||
return toSocksaddr(destination), nil
|
||||
}
|
||||
}
|
||||
|
||||
func (w *packetConnWrapper) WritePacket(buffer *B.Buffer, destination M.Socksaddr) error {
|
||||
vBuf := buf.New()
|
||||
vBuf.Write(buffer.Bytes())
|
||||
endpoint := toDestination(destination, net.Network_UDP)
|
||||
vBuf.UDP = &endpoint
|
||||
return w.Writer.WriteMultiBuffer(buf.MultiBuffer{vBuf})
|
||||
}
|
||||
|
||||
func (w *packetConnWrapper) Close() error {
|
||||
common.Interrupt(w.Reader)
|
||||
common.Close(w.Conn)
|
||||
buf.ReleaseMulti(w.cached)
|
||||
return nil
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue