shadowsocks

package
v0.0.0-...-fc1c416 Latest Latest
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 Go to latest Published: Mar 19, 2021 License: MIT, MIT Imports: 34 Imported by: 0

Documentation

Overview

Package shadowsocks provides compatible functionality to Shadowsocks.

Shadowsocks client and server are implemented as outbound and inbound respectively in V2Ray's term.

Shadowsocks OTA is fully supported. By default both client and server enable OTA, but it can be optionally disabled.

Supperted Ciphers: * AES-256-CFB * AES-128-CFB * Chacha20 * Chacha20-IEFT

R.I.P Shadowsocks

Index

Constants

View Source 
const (
	Version                               = 1
	RequestOptionOneTimeAuth bitmask.Byte = 0x01
)
View Source 
const (
	// AuthSize is the number of extra bytes for Shadowsocks OTA.
	AuthSize = 10
)

Variables

View Source 
var Account_OneTimeAuth_name = map[int32]string{
	0: "Auto",
	1: "Disabled",
	2: "Enabled",
}
View Source 
var Account_OneTimeAuth_value = map[string]int32{
	"Auto":     0,
	"Disabled": 1,
	"Enabled":  2,
}
View Source 
var CipherType_name = map[int32]string{
	0: "UNKNOWN",
	1: "AES_128_CFB",
	2: "AES_256_CFB",
	3: "CHACHA20",
	4: "CHACHA20_IETF",
	5: "AES_128_GCM",
	6: "AES_256_GCM",
	7: "CHACHA20_POLY1305",
	8: "NONE",
}
View Source 
var CipherType_value = map[string]int32{
	"UNKNOWN":           0,
	"AES_128_CFB":       1,
	"AES_256_CFB":       2,
	"CHACHA20":          3,
	"CHACHA20_IETF":     4,
	"AES_128_GCM":       5,
	"AES_256_GCM":       6,
	"CHACHA20_POLY1305": 7,
	"NONE":              8,
}

Functions

func ChunkKeyGenerator 

func ChunkKeyGenerator(iv []byte) func() []byte

func DecodeUDPPacket 

func DecodeUDPPacket(user *protocol.User, payload *buf.Buffer) (*protocol.RequestHeader, *buf.Buffer, error)

func EncodeUDPPacket 

func EncodeUDPPacket(request *protocol.RequestHeader, payload []byte) (*buf.Buffer, error)

func HeaderKeyGenerator 

func HeaderKeyGenerator(key []byte, iv []byte) func() []byte

func ReadTCPResponse 

func ReadTCPResponse(user *protocol.User, reader io.Reader) (buf.Reader, error)

func ReadTCPSession 

func ReadTCPSession(user *protocol.User, reader io.Reader) (*protocol.RequestHeader, buf.Reader, error)

ReadTCPSession reads a Shadowsocks TCP session from the given reader, returns its header and remaining parts.

func WriteTCPRequest 

func WriteTCPRequest(request *protocol.RequestHeader, writer io.Writer) (buf.Writer, error)

WriteTCPRequest writes Shadowsocks request into the given writer, and returns a writer for body.

func WriteTCPResponse 

func WriteTCPResponse(request *protocol.RequestHeader, writer io.Writer) (buf.Writer, error)

Types

type AEADCipher 

type AEADCipher struct {
	KeyBytes        int32
	IVBytes         int32
	AEADAuthCreator func(key []byte) cipher.AEAD
}

func (*AEADCipher) DecodePacket 

func (c *AEADCipher) DecodePacket(key []byte, b *buf.Buffer) error

func (*AEADCipher) EncodePacket 

func (c *AEADCipher) EncodePacket(key []byte, b *buf.Buffer) error

func (*AEADCipher) IVSize 

func (c *AEADCipher) IVSize() int32

func (*AEADCipher) IsAEAD 

func (*AEADCipher) IsAEAD() bool

func (*AEADCipher) KeySize 

func (c *AEADCipher) KeySize() int32

func (*AEADCipher) NewDecryptionReader 

func (c *AEADCipher) NewDecryptionReader(key []byte, iv []byte, reader io.Reader) (buf.Reader, error)

func (*AEADCipher) NewEncryptionWriter 

func (c *AEADCipher) NewEncryptionWriter(key []byte, iv []byte, writer io.Writer) (buf.Writer, error)

type Account 

type Account struct {
	Password             string              `protobuf:"bytes,1,opt,name=password" json:"password,omitempty"`
	CipherType           CipherType          `` /* 128-byte string literal not displayed */
	Ota                  Account_OneTimeAuth `protobuf:"varint,3,opt,name=ota,enum=com.core.proxy.shadowsocks.Account_OneTimeAuth" json:"ota,omitempty"`
	XXX_NoUnkeyedLiteral struct{}            `json:"-"`
	XXX_unrecognized     []byte              `json:"-"`
	XXX_sizecache        int32               `json:"-"`
}

func (*Account) AsAccount 

func (a *Account) AsAccount() (protocol.Account, error)

AsAccount implements protocol.AsAccount.

func (*Account) Descriptor 

func (*Account) Descriptor() ([]byte, []int)

func (*Account) GetCipherType 

func (m *Account) GetCipherType() CipherType

func (*Account) GetOta 

func (m *Account) GetOta() Account_OneTimeAuth

func (*Account) GetPassword 

func (m *Account) GetPassword() string

func (*Account) ProtoMessage 

func (*Account) ProtoMessage()

func (*Account) Reset 

func (m *Account) Reset()

func (*Account) String 

func (m *Account) String() string

func (*Account) XXX_DiscardUnknown 

func (m *Account) XXX_DiscardUnknown()

func (*Account) XXX_Marshal 

func (m *Account) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Account) XXX_Merge 

func (dst *Account) XXX_Merge(src proto.Message)

func (*Account) XXX_Size 

func (m *Account) XXX_Size() int

func (*Account) XXX_Unmarshal 

func (m *Account) XXX_Unmarshal(b []byte) error

type Account_OneTimeAuth 

type Account_OneTimeAuth int32
const (
	Account_Auto     Account_OneTimeAuth = 0
	Account_Disabled Account_OneTimeAuth = 1
	Account_Enabled  Account_OneTimeAuth = 2
)

func (Account_OneTimeAuth) EnumDescriptor 

func (Account_OneTimeAuth) EnumDescriptor() ([]byte, []int)

func (Account_OneTimeAuth) String 

func (x Account_OneTimeAuth) String() string

type AesCfb 

type AesCfb struct {
	KeyBytes int32
}

AesCfb represents all AES-CFB ciphers.

func (*AesCfb) DecodePacket 

func (v *AesCfb) DecodePacket(key []byte, b *buf.Buffer) error

func (*AesCfb) EncodePacket 

func (v *AesCfb) EncodePacket(key []byte, b *buf.Buffer) error

func (*AesCfb) IVSize 

func (v *AesCfb) IVSize() int32

func (*AesCfb) IsAEAD 

func (*AesCfb) IsAEAD() bool

func (*AesCfb) KeySize 

func (v *AesCfb) KeySize() int32

func (*AesCfb) NewDecryptionReader 

func (v *AesCfb) NewDecryptionReader(key []byte, iv []byte, reader io.Reader) (buf.Reader, error)

func (*AesCfb) NewEncryptionWriter 

func (v *AesCfb) NewEncryptionWriter(key []byte, iv []byte, writer io.Writer) (buf.Writer, error)

type Authenticator 

type Authenticator struct {
	// contains filtered or unexported fields
}

func NewAuthenticator 

func NewAuthenticator(keygen KeyGenerator) *Authenticator

func (*Authenticator) Authenticate 

func (v *Authenticator) Authenticate(data []byte) buf.Supplier

type ChaCha20 

type ChaCha20 struct {
	IVBytes int32
}

func (*ChaCha20) DecodePacket 

func (v *ChaCha20) DecodePacket(key []byte, b *buf.Buffer) error

func (*ChaCha20) EncodePacket 

func (v *ChaCha20) EncodePacket(key []byte, b *buf.Buffer) error

func (*ChaCha20) IVSize 

func (v *ChaCha20) IVSize() int32

func (*ChaCha20) IsAEAD 

func (*ChaCha20) IsAEAD() bool

func (*ChaCha20) KeySize 

func (v *ChaCha20) KeySize() int32

func (*ChaCha20) NewDecryptionReader 

func (v *ChaCha20) NewDecryptionReader(key []byte, iv []byte, reader io.Reader) (buf.Reader, error)

func (*ChaCha20) NewEncryptionWriter 

func (v *ChaCha20) NewEncryptionWriter(key []byte, iv []byte, writer io.Writer) (buf.Writer, error)

type ChunkReader 

type ChunkReader struct {
	// contains filtered or unexported fields
}

func NewChunkReader 

func NewChunkReader(reader io.Reader, auth *Authenticator) *ChunkReader

func (*ChunkReader) ReadMultiBuffer 

func (v *ChunkReader) ReadMultiBuffer() (buf.MultiBuffer, error)

type ChunkWriter 

type ChunkWriter struct {
	// contains filtered or unexported fields
}

func NewChunkWriter 

func NewChunkWriter(writer io.Writer, auth *Authenticator) *ChunkWriter

func (*ChunkWriter) WriteMultiBuffer 

func (w *ChunkWriter) WriteMultiBuffer(mb buf.MultiBuffer) error

WriteMultiBuffer implements buf.Writer.

type Cipher 

type Cipher interface {
	KeySize() int32
	IVSize() int32
	NewEncryptionWriter(key []byte, iv []byte, writer io.Writer) (buf.Writer, error)
	NewDecryptionReader(key []byte, iv []byte, reader io.Reader) (buf.Reader, error)
	IsAEAD() bool
	EncodePacket(key []byte, b *buf.Buffer) error
	DecodePacket(key []byte, b *buf.Buffer) error
}

Cipher is an interface for all Shadowsocks ciphers.

type CipherType 

type CipherType int32
const (
	CipherType_UNKNOWN           CipherType = 0
	CipherType_AES_128_CFB       CipherType = 1
	CipherType_AES_256_CFB       CipherType = 2
	CipherType_CHACHA20          CipherType = 3
	CipherType_CHACHA20_IETF     CipherType = 4
	CipherType_AES_128_GCM       CipherType = 5
	CipherType_AES_256_GCM       CipherType = 6
	CipherType_CHACHA20_POLY1305 CipherType = 7
	CipherType_NONE              CipherType = 8
)

func (CipherType) EnumDescriptor 

func (CipherType) EnumDescriptor() ([]byte, []int)

func (CipherType) String 

func (x CipherType) String() string

type Client 

type Client struct {
	// contains filtered or unexported fields
}

Client is a inbound handler for Shadowsocks protocol

func NewClient 

func NewClient(ctx context.Context, config *ClientConfig) (*Client, error)

NewClient create a new Shadowsocks client.

func (*Client) Process 

func (c *Client) Process(ctx context.Context, link *core.Link, dialer proxy.Dialer) error

Process implements OutboundHandler.Process().

type ClientConfig 

type ClientConfig struct {
	Server               []*protocol.ServerEndpoint `protobuf:"bytes,1,rep,name=server" json:"server,omitempty"`
	XXX_NoUnkeyedLiteral struct{}                   `json:"-"`
	XXX_unrecognized     []byte                     `json:"-"`
	XXX_sizecache        int32                      `json:"-"`
}

func (*ClientConfig) Descriptor 

func (*ClientConfig) Descriptor() ([]byte, []int)

func (*ClientConfig) GetServer 

func (m *ClientConfig) GetServer() []*protocol.ServerEndpoint

func (*ClientConfig) ProtoMessage 

func (*ClientConfig) ProtoMessage()

func (*ClientConfig) Reset 

func (m *ClientConfig) Reset()

func (*ClientConfig) String 

func (m *ClientConfig) String() string

func (*ClientConfig) XXX_DiscardUnknown 

func (m *ClientConfig) XXX_DiscardUnknown()

func (*ClientConfig) XXX_Marshal 

func (m *ClientConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ClientConfig) XXX_Merge 

func (dst *ClientConfig) XXX_Merge(src proto.Message)

func (*ClientConfig) XXX_Size 

func (m *ClientConfig) XXX_Size() int

func (*ClientConfig) XXX_Unmarshal 

func (m *ClientConfig) XXX_Unmarshal(b []byte) error

type KeyGenerator 

type KeyGenerator func() []byte

type MemoryAccount 

type MemoryAccount struct {
	Cipher      Cipher
	Key         []byte
	OneTimeAuth Account_OneTimeAuth
}

MemoryAccount is an account type converted from Account.

func (*MemoryAccount) Equals 

func (a *MemoryAccount) Equals(another protocol.Account) bool

Equals implements protocol.Account.Equals().

type NoneCipher 

type NoneCipher struct{}

func (NoneCipher) DecodePacket 

func (NoneCipher) DecodePacket(key []byte, b *buf.Buffer) error

func (NoneCipher) EncodePacket 

func (NoneCipher) EncodePacket(key []byte, b *buf.Buffer) error

func (NoneCipher) IVSize 

func (NoneCipher) IVSize() int32

func (NoneCipher) IsAEAD 

func (NoneCipher) IsAEAD() bool

func (NoneCipher) KeySize 

func (NoneCipher) KeySize() int32

func (NoneCipher) NewDecryptionReader 

func (NoneCipher) NewDecryptionReader(key []byte, iv []byte, reader io.Reader) (buf.Reader, error)

func (NoneCipher) NewEncryptionWriter 

func (NoneCipher) NewEncryptionWriter(key []byte, iv []byte, writer io.Writer) (buf.Writer, error)

type Server 

type Server struct {
	// contains filtered or unexported fields
}

func NewServer 

func NewServer(ctx context.Context, config *ServerConfig) (*Server, error)

NewServer create a new Shadowsocks server.

func (*Server) Network 

func (s *Server) Network() net.NetworkList

func (*Server) Process 

func (s *Server) Process(ctx context.Context, network net.Network, conn internet.Connection, dispatcher core.Dispatcher) error

type ServerConfig 

type ServerConfig struct {
	// UdpEnabled specified whether or not to enable UDP for Shadowsocks.
	// Deprecated. Use 'network' field.
	UdpEnabled           bool           `protobuf:"varint,1,opt,name=udp_enabled,json=udpEnabled" json:"udp_enabled,omitempty"` // Deprecated: Do not use.
	User                 *protocol.User `protobuf:"bytes,2,opt,name=user" json:"user,omitempty"`
	Network              []net.Network  `protobuf:"varint,3,rep,packed,name=network,enum=com.core.common.net.Network" json:"network,omitempty"`
	XXX_NoUnkeyedLiteral struct{}       `json:"-"`
	XXX_unrecognized     []byte         `json:"-"`
	XXX_sizecache        int32          `json:"-"`
}

func (*ServerConfig) Descriptor 

func (*ServerConfig) Descriptor() ([]byte, []int)

func (*ServerConfig) GetNetwork 

func (m *ServerConfig) GetNetwork() []net.Network

func (*ServerConfig) GetUdpEnabled deprecated 

func (m *ServerConfig) GetUdpEnabled() bool

Deprecated: Do not use.

func (*ServerConfig) GetUser 

func (m *ServerConfig) GetUser() *protocol.User

func (*ServerConfig) ProtoMessage 

func (*ServerConfig) ProtoMessage()

func (*ServerConfig) Reset 

func (m *ServerConfig) Reset()

func (*ServerConfig) String 

func (m *ServerConfig) String() string

func (*ServerConfig) XXX_DiscardUnknown 

func (m *ServerConfig) XXX_DiscardUnknown()

func (*ServerConfig) XXX_Marshal 

func (m *ServerConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ServerConfig) XXX_Merge 

func (dst *ServerConfig) XXX_Merge(src proto.Message)

func (*ServerConfig) XXX_Size 

func (m *ServerConfig) XXX_Size() int

func (*ServerConfig) XXX_Unmarshal 

func (m *ServerConfig) XXX_Unmarshal(b []byte) error

type UDPReader 

type UDPReader struct {
	Reader io.Reader
	User   *protocol.User
}

func (*UDPReader) ReadMultiBuffer 

func (v *UDPReader) ReadMultiBuffer() (buf.MultiBuffer, error)

type UDPWriter 

type UDPWriter struct {
	Writer  io.Writer
	Request *protocol.RequestHeader
}

func (*UDPWriter) Write 

func (w *UDPWriter) Write(payload []byte) (int, error)

Write implements io.Writer.

Source Files

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