mirror of https://github.com/v2fly/v2ray-core.git
feat: add tun support for tcp
This commit is contained in:
AkinoKaede
Shelikhoo
parent
442eb44f74
commit
12567c62ea
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@ -0,0 +1,170 @@
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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 v1.30.0
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// protoc v3.21.12
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// source: app/tun/config.proto
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package tun
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import (
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_ "github.com/v2fly/v2ray-core/v5/common/protoext"
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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 Config 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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Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
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Mtu uint32 `protobuf:"varint,2,opt,name=mtu,proto3" json:"mtu,omitempty"`
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UserLevel uint32 `protobuf:"varint,3,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
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}
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func (x *Config) Reset() {
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*x = Config{}
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if protoimpl.UnsafeEnabled {
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mi := &file_app_tun_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 *Config) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*Config) ProtoMessage() {}
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func (x *Config) ProtoReflect() protoreflect.Message {
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mi := &file_app_tun_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 Config.ProtoReflect.Descriptor instead.
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func (*Config) Descriptor() ([]byte, []int) {
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return file_app_tun_config_proto_rawDescGZIP(), []int{0}
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}
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func (x *Config) GetName() string {
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if x != nil {
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return x.Name
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}
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return ""
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}
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func (x *Config) GetMtu() uint32 {
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if x != nil {
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return x.Mtu
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}
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return 0
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}
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func (x *Config) GetUserLevel() uint32 {
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if x != nil {
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return x.UserLevel
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}
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return 0
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}
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var File_app_tun_config_proto protoreflect.FileDescriptor
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||||
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var file_app_tun_config_proto_rawDesc = []byte{
|
||||
0x0a, 0x14, 0x61, 0x70, 0x70, 0x2f, 0x74, 0x75, 0x6e, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67,
|
||||
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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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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x76, 0x35, 0x2f, 0x61, 0x70, 0x70, 0x2f,
|
||||
0x74, 0x75, 0x6e, 0xaa, 0x02, 0x12, 0x56, 0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72, 0x65,
|
||||
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}
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var (
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file_app_tun_config_proto_rawDescOnce sync.Once
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file_app_tun_config_proto_rawDescData = file_app_tun_config_proto_rawDesc
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)
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func file_app_tun_config_proto_rawDescGZIP() []byte {
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file_app_tun_config_proto_rawDescOnce.Do(func() {
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file_app_tun_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_tun_config_proto_rawDescData)
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})
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return file_app_tun_config_proto_rawDescData
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}
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var file_app_tun_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
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var file_app_tun_config_proto_goTypes = []interface{}{
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(*Config)(nil), // 0: v2ray.core.app.tun.Config
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}
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var file_app_tun_config_proto_depIdxs = []int32{
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0, // [0:0] is the sub-list for method output_type
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0, // [0:0] is the sub-list for method input_type
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0, // [0:0] is the sub-list for extension type_name
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||||
0, // [0:0] is the sub-list for extension extendee
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0, // [0:0] is the sub-list for field type_name
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}
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func init() { file_app_tun_config_proto_init() }
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func file_app_tun_config_proto_init() {
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if File_app_tun_config_proto != nil {
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return
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}
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if !protoimpl.UnsafeEnabled {
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file_app_tun_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
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switch v := v.(*Config); 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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}
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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{
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GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
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RawDescriptor: file_app_tun_config_proto_rawDesc,
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NumEnums: 0,
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NumMessages: 1,
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NumExtensions: 0,
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NumServices: 0,
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},
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GoTypes: file_app_tun_config_proto_goTypes,
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DependencyIndexes: file_app_tun_config_proto_depIdxs,
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MessageInfos: file_app_tun_config_proto_msgTypes,
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}.Build()
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File_app_tun_config_proto = out.File
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file_app_tun_config_proto_rawDesc = nil
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file_app_tun_config_proto_goTypes = nil
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file_app_tun_config_proto_depIdxs = nil
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}
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@ -0,0 +1,22 @@
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syntax = "proto3";
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package v2ray.core.app.tun;
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option csharp_namespace = "V2Ray.Core.App.Tun";
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option go_package = "github.com/v2fly/v2ray-core/v5/app/tun";
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option java_package = "com.v2ray.core.app.tun";
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option java_multiple_files = true;
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// import "app/router/routercommon/common.proto";
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import "common/protoext/extensions.proto";
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message Config {
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option (v2ray.core.common.protoext.message_opt).type = "service";
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option (v2ray.core.common.protoext.message_opt).short_name = "tun";
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string name = 1;
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uint32 mtu = 2;
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uint32 user_level = 3;
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}
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@ -0,0 +1,19 @@
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package device
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import (
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"github.com/v2fly/v2ray-core/v5/common"
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"gvisor.dev/gvisor/pkg/tcpip/stack"
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)
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type Device interface {
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stack.LinkEndpoint
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common.Closable
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}
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type Options struct {
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Name string
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MTU uint32
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}
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type NewTUNFunc func(Options) (Device, error)
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@ -0,0 +1,9 @@
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package tun
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import "github.com/v2fly/v2ray-core/v5/common/errors"
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type errPathObjHolder struct{}
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func newError(values ...interface{}) *errors.Error {
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return errors.New(values...).WithPathObj(errPathObjHolder{})
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}
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@ -0,0 +1,3 @@
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package tun
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//go:generate go run github.com/v2fly/v2ray-core/v5/common/errors/errorgen
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@ -0,0 +1,68 @@
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//go:build linux && ((linux && amd64) || (linux && arm64))
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// +build linux
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// +build linux,amd64 linux,arm64
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package tun
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import (
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"github.com/v2fly/v2ray-core/v5/app/tun/device"
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"golang.org/x/sys/unix"
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"gvisor.dev/gvisor/pkg/tcpip/stack"
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"gvisor.dev/gvisor/pkg/tcpip/link/fdbased"
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"gvisor.dev/gvisor/pkg/tcpip/link/rawfile"
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"gvisor.dev/gvisor/pkg/tcpip/link/tun"
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)
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type TUN struct {
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stack.LinkEndpoint
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options device.Options
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fd int
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mtu uint32 // real MTU
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}
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func New(options device.Options) (device.Device, error) {
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t := &TUN{options: options}
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if len(options.Name) > unix.IFNAMSIZ {
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return nil, newError("name too long").AtError()
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}
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fd, err := tun.Open(options.Name)
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if err != nil {
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return nil, newError("failed to open tun device").Base(err).AtError()
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}
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t.fd = fd
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// TODO: set MTU
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mtu, err := rawfile.GetMTU(options.Name)
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if err != nil {
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return nil, newError("failed to get mtu").Base(err).AtError()
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}
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t.mtu = mtu
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linkEndpoint, err := fdbased.New(&fdbased.Options{
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FDs: []int{fd},
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MTU: mtu,
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// TUN is not need to process ethernet header.
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EthernetHeader: false,
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// Readv is the default dispatch mode and is the least performant of the
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// dispatch options but the one that is supported by all underlying FD
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// types.
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PacketDispatchMode: fdbased.Readv,
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MaxSyscallHeaderBytes: 0x00,
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})
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if err != nil {
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return nil, newError("failed to create link endpoint").Base(err).AtError()
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}
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t.LinkEndpoint = linkEndpoint
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return t, nil
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}
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func (t *TUN) Close() error {
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return unix.Close(t.fd)
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}
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@ -0,0 +1,9 @@
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package tun
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import "github.com/v2fly/v2ray-core/v5/common/errors"
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type errPathObjHolder struct{}
|
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|
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func newError(values ...interface{}) *errors.Error {
|
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return errors.New(values...).WithPathObj(errPathObjHolder{})
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}
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@ -0,0 +1 @@
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package tun
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@ -0,0 +1,96 @@
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package tun
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import (
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"context"
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"github.com/v2fly/v2ray-core/v5/common"
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"github.com/v2fly/v2ray-core/v5/common/buf"
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"github.com/v2fly/v2ray-core/v5/common/log"
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"github.com/v2fly/v2ray-core/v5/common/net"
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"github.com/v2fly/v2ray-core/v5/common/signal"
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"github.com/v2fly/v2ray-core/v5/common/task"
|
||||
"github.com/v2fly/v2ray-core/v5/features/policy"
|
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"github.com/v2fly/v2ray-core/v5/features/routing"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/stack"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/transport/tcp"
|
||||
"gvisor.dev/gvisor/pkg/waiter"
|
||||
)
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||||
|
||||
type TCPHandler struct {
|
||||
ctx context.Context
|
||||
dispatcher routing.Dispatcher
|
||||
policyManager policy.Manager
|
||||
config *Config
|
||||
|
||||
stack *stack.Stack
|
||||
rcvWnd int
|
||||
maxInFlight int
|
||||
}
|
||||
|
||||
func (h *TCPHandler) SetHandler() {
|
||||
tcpForwarder := tcp.NewForwarder(h.stack, h.rcvWnd, h.maxInFlight, func(r *tcp.ForwarderRequest) {
|
||||
wg := new(waiter.Queue)
|
||||
linkedEndpoint, err := r.CreateEndpoint(wg)
|
||||
if err != nil {
|
||||
r.Complete(true)
|
||||
return
|
||||
}
|
||||
defer r.Complete(false)
|
||||
|
||||
// TODO: set sockopt
|
||||
|
||||
h.handle(gonet.NewTCPConn(wg, linkedEndpoint))
|
||||
|
||||
})
|
||||
h.stack.SetTransportProtocolHandler(tcp.ProtocolNumber, tcpForwarder.HandlePacket)
|
||||
}
|
||||
|
||||
func (h *TCPHandler) handle(conn *gonet.TCPConn) error {
|
||||
sessionPolicy := h.policyManager.ForLevel(h.config.UserLevel)
|
||||
|
||||
addr := conn.RemoteAddr()
|
||||
|
||||
dest := net.DestinationFromAddr(addr)
|
||||
ctx := log.ContextWithAccessMessage(h.ctx, &log.AccessMessage{
|
||||
From: addr,
|
||||
To: dest,
|
||||
Status: log.AccessAccepted,
|
||||
Reason: "",
|
||||
})
|
||||
ctx, cancel := context.WithCancel(ctx)
|
||||
timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
|
||||
link, err := h.dispatcher.Dispatch(ctx, dest)
|
||||
if err != nil {
|
||||
return newError("failed to dispatch").Base(err)
|
||||
}
|
||||
|
||||
responseDone := func() error {
|
||||
defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
|
||||
|
||||
if err := buf.Copy(link.Reader, buf.NewWriter(conn), buf.UpdateActivity(timer)); err != nil {
|
||||
return newError("failed to transport all TCP response").Base(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
requestDone := func() error {
|
||||
defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
|
||||
|
||||
if err := buf.Copy(buf.NewReader(conn), link.Writer, buf.UpdateActivity(timer)); err != nil {
|
||||
return newError("failed to transport all TCP request").Base(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
requestDoneAndCloseWriter := task.OnSuccess(requestDone, task.Close(link.Writer))
|
||||
if err := task.Run(h.ctx, requestDoneAndCloseWriter, responseDone); err != nil {
|
||||
common.Interrupt(link.Reader)
|
||||
common.Interrupt(link.Writer)
|
||||
return newError("connection ends").Base(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
package tun
|
||||
|
||||
import (
|
||||
"gvisor.dev/gvisor/pkg/tcpip/network/ipv4"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/network/ipv6"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/stack"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/transport/icmp"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/transport/tcp"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/transport/udp"
|
||||
)
|
||||
|
||||
func CreateStack(_ stack.LinkEndpoint) (*stack.Stack, error) {
|
||||
s := stack.New(stack.Options{
|
||||
NetworkProtocols: []stack.NetworkProtocolFactory{
|
||||
ipv4.NewProtocol,
|
||||
ipv6.NewProtocol,
|
||||
},
|
||||
TransportProtocols: []stack.TransportProtocolFactory{
|
||||
tcp.NewProtocol,
|
||||
udp.NewProtocol,
|
||||
icmp.NewProtocol4,
|
||||
icmp.NewProtocol6,
|
||||
},
|
||||
})
|
||||
|
||||
// nicID := tcpip.NICID(s.UniqueID())
|
||||
|
||||
return s, nil
|
||||
}
|
||||
|
|
@ -0,0 +1,89 @@
|
|||
//go:build !confonly
|
||||
// +build !confonly
|
||||
|
||||
package tun
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
core "github.com/v2fly/v2ray-core/v5"
|
||||
"github.com/v2fly/v2ray-core/v5/app/tun/device"
|
||||
"github.com/v2fly/v2ray-core/v5/app/tun/device/tun"
|
||||
"github.com/v2fly/v2ray-core/v5/common"
|
||||
"github.com/v2fly/v2ray-core/v5/features/policy"
|
||||
"github.com/v2fly/v2ray-core/v5/features/routing"
|
||||
"gvisor.dev/gvisor/pkg/tcpip/stack"
|
||||
)
|
||||
|
||||
//go:generate go run github.com/v2fly/v2ray-core/v5/common/errors/errorgen
|
||||
|
||||
type TUN struct {
|
||||
ctx context.Context
|
||||
dispatcher routing.Dispatcher
|
||||
policyManager policy.Manager
|
||||
config *Config
|
||||
|
||||
stack *stack.Stack
|
||||
}
|
||||
|
||||
func (t *TUN) Type() interface{} {
|
||||
return (*TUN)(nil)
|
||||
}
|
||||
|
||||
func (t *TUN) Start() error {
|
||||
var newDeviceFunc device.NewTUNFunc
|
||||
newDeviceFunc = tun.New
|
||||
device, err := newDeviceFunc(device.Options{
|
||||
Name: t.config.Name,
|
||||
MTU: t.config.Mtu,
|
||||
})
|
||||
if err != nil {
|
||||
return newError("failed to create device").Base(err).AtError()
|
||||
}
|
||||
|
||||
stack, err := CreateStack(device)
|
||||
if err != nil {
|
||||
return newError("failed to create stack").Base(err).AtError()
|
||||
}
|
||||
t.stack = stack
|
||||
|
||||
tcpHandler := &TCPHandler{
|
||||
ctx: t.ctx,
|
||||
dispatcher: t.dispatcher,
|
||||
policyManager: t.policyManager,
|
||||
config: t.config,
|
||||
stack: stack,
|
||||
}
|
||||
|
||||
tcpHandler.SetHandler()
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (t *TUN) Close() error {
|
||||
if t.stack != nil {
|
||||
t.stack.Close()
|
||||
t.stack.Wait()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func NewTUN(ctx context.Context, config *Config, dispatcher routing.Dispatcher) *TUN {
|
||||
v := core.MustFromContext(ctx)
|
||||
return &TUN{
|
||||
ctx: ctx,
|
||||
dispatcher: dispatcher,
|
||||
config: config,
|
||||
policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
|
||||
}
|
||||
}
|
||||
|
||||
func init() {
|
||||
common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
|
||||
tun := core.RequireFeatures(ctx, func(d routing.Dispatcher) *TUN {
|
||||
return NewTUN(ctx, config.(*Config), d)
|
||||
})
|
||||
|
||||
return tun, nil
|
||||
}))
|
||||
}
|
||||
Loading…
Reference in New Issue