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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-12-21 09:36:34 -05:00
This commit is contained in:
Darien Raymond 2017-02-14 10:13:13 +01:00
commit 8d6a4d0a8a
No known key found for this signature in database
GPG Key ID: 7251FFA14BB18169
5 changed files with 50 additions and 65 deletions

View File

@ -68,9 +68,10 @@ func (v *AEADAuthenticator) Seal(dst, plainText []byte) ([]byte, error) {
}
type AuthenticationReader struct {
auth Authenticator
buffer *buf.Buffer
reader io.Reader
auth Authenticator
buffer *buf.Buffer
reader io.Reader
sizeMask uint16
chunk []byte
}
@ -79,11 +80,12 @@ const (
readerBufferSize = 32 * 1024
)
func NewAuthenticationReader(auth Authenticator, reader io.Reader) *AuthenticationReader {
func NewAuthenticationReader(auth Authenticator, reader io.Reader, sizeMask uint16) *AuthenticationReader {
return &AuthenticationReader{
auth: auth,
buffer: buf.NewLocal(readerBufferSize),
reader: reader,
auth: auth,
buffer: buf.NewLocal(readerBufferSize),
reader: reader,
sizeMask: sizeMask,
}
}
@ -91,7 +93,7 @@ func (v *AuthenticationReader) NextChunk() error {
if v.buffer.Len() < 2 {
return errInsufficientBuffer
}
size := int(serial.BytesToUint16(v.buffer.BytesTo(2)))
size := int(serial.BytesToUint16(v.buffer.BytesTo(2)) ^ v.sizeMask)
if size > v.buffer.Len()-2 {
return errInsufficientBuffer
}
@ -168,16 +170,18 @@ func (v *AuthenticationReader) Read(b []byte) (int, error) {
}
type AuthenticationWriter struct {
auth Authenticator
buffer []byte
writer io.Writer
auth Authenticator
buffer []byte
writer io.Writer
sizeMask uint16
}
func NewAuthenticationWriter(auth Authenticator, writer io.Writer) *AuthenticationWriter {
func NewAuthenticationWriter(auth Authenticator, writer io.Writer, sizeMask uint16) *AuthenticationWriter {
return &AuthenticationWriter{
auth: auth,
buffer: make([]byte, 32*1024),
writer: writer,
auth: auth,
buffer: make([]byte, 32*1024),
writer: writer,
sizeMask: sizeMask,
}
}
@ -187,7 +191,8 @@ func (v *AuthenticationWriter) Write(b []byte) (int, error) {
return 0, err
}
serial.Uint16ToBytes(uint16(len(cipherChunk)), v.buffer[:0])
size := uint16(len(cipherChunk)) ^ v.sizeMask
serial.Uint16ToBytes(size, v.buffer[:0])
_, err = v.writer.Write(v.buffer[:2+len(cipherChunk)])
return len(b), err
}

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@ -6,17 +6,19 @@ import (
"crypto/rand"
"io"
"testing"
"time"
"v2ray.com/core/common/buf"
. "v2ray.com/core/common/crypto"
"v2ray.com/core/common/dice"
"v2ray.com/core/testing/assert"
)
func TestAuthenticationReaderWriter(t *testing.T) {
assert := assert.On(t)
sizeMask := uint16(dice.Roll(65536))
key := make([]byte, 16)
rand.Read(key)
block, err := aes.NewCipher(key)
@ -38,7 +40,7 @@ func TestAuthenticationReaderWriter(t *testing.T) {
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, cache)
}, cache, sizeMask)
nBytes, err := writer.Write(payload)
assert.Error(err).IsNil()
@ -53,7 +55,7 @@ func TestAuthenticationReaderWriter(t *testing.T) {
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, cache)
}, cache, sizeMask)
actualPayload := make([]byte, 16*1024)
nBytes, err = reader.Read(actualPayload)
@ -68,6 +70,8 @@ func TestAuthenticationReaderWriter(t *testing.T) {
func TestAuthenticationReaderWriterPartial(t *testing.T) {
assert := assert.On(t)
sizeMask := uint16(dice.Roll(65536))
key := make([]byte, 16)
rand.Read(key)
block, err := aes.NewCipher(key)
@ -89,7 +93,7 @@ func TestAuthenticationReaderWriterPartial(t *testing.T) {
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, cache)
}, cache, sizeMask)
writer.Write([]byte{'a', 'b', 'c', 'd'})
@ -119,7 +123,7 @@ func TestAuthenticationReaderWriterPartial(t *testing.T) {
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, pr)
}, pr, sizeMask)
actualPayload := make([]byte, 7*1024)
nBytes, err = reader.Read(actualPayload)

View File

@ -119,6 +119,7 @@ func (v *ClientSession) EncodeRequestHeader(header *protocol.RequestHeader, writ
func (v *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, writer io.Writer) buf.Writer {
var authWriter io.Writer
sizeMask := serial.BytesToUint16(v.requestBodyKey[:2])
if request.Security.Is(protocol.SecurityType_NONE) {
if request.Option.Has(protocol.RequestOptionChunkStream) {
auth := &crypto.AEADAuthenticator{
@ -126,7 +127,7 @@ func (v *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, writer)
authWriter = crypto.NewAuthenticationWriter(auth, writer, sizeMask)
} else {
authWriter = writer
}
@ -139,7 +140,7 @@ func (v *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, cryptionWriter)
authWriter = crypto.NewAuthenticationWriter(auth, cryptionWriter, sizeMask)
} else {
authWriter = cryptionWriter
}
@ -155,7 +156,7 @@ func (v *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, writer)
authWriter = crypto.NewAuthenticationWriter(auth, writer, sizeMask)
} else if request.Security.Is(protocol.SecurityType_CHACHA20_POLY1305) {
aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(v.requestBodyKey))
@ -167,7 +168,7 @@ func (v *ClientSession) EncodeRequestBody(request *protocol.RequestHeader, write
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, writer)
authWriter = crypto.NewAuthenticationWriter(auth, writer, sizeMask)
}
return buf.NewWriter(authWriter)
@ -214,6 +215,7 @@ func (v *ClientSession) DecodeResponseHeader(reader io.Reader) (*protocol.Respon
func (v *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, reader io.Reader) buf.Reader {
var authReader io.Reader
sizeMask := serial.BytesToUint16(v.responseBodyKey[:2])
if request.Security.Is(protocol.SecurityType_NONE) {
if request.Option.Has(protocol.RequestOptionChunkStream) {
auth := &crypto.AEADAuthenticator{
@ -221,7 +223,7 @@ func (v *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, reader)
authReader = crypto.NewAuthenticationReader(auth, reader, sizeMask)
} else {
authReader = reader
}
@ -232,7 +234,7 @@ func (v *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, v.responseReader)
authReader = crypto.NewAuthenticationReader(auth, v.responseReader, sizeMask)
} else {
authReader = v.responseReader
}
@ -248,7 +250,7 @@ func (v *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, reader)
authReader = crypto.NewAuthenticationReader(auth, reader, sizeMask)
} else if request.Security.Is(protocol.SecurityType_CHACHA20_POLY1305) {
aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(v.responseBodyKey))
@ -260,7 +262,7 @@ func (v *ClientSession) DecodeResponseBody(request *protocol.RequestHeader, read
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, reader)
authReader = crypto.NewAuthenticationReader(auth, reader, sizeMask)
}
return buf.NewReader(authReader)

View File

@ -237,6 +237,7 @@ func (v *ServerSession) DecodeRequestHeader(reader io.Reader) (*protocol.Request
func (v *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reader io.Reader) buf.Reader {
var authReader io.Reader
sizeMask := serial.BytesToUint16(v.requestBodyKey[:2])
if request.Security.Is(protocol.SecurityType_NONE) {
if request.Option.Has(protocol.RequestOptionChunkStream) {
auth := &crypto.AEADAuthenticator{
@ -244,7 +245,7 @@ func (v *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, reader)
authReader = crypto.NewAuthenticationReader(auth, reader, sizeMask)
} else {
authReader = reader
}
@ -257,7 +258,7 @@ func (v *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, cryptionReader)
authReader = crypto.NewAuthenticationReader(auth, cryptionReader, sizeMask)
} else {
authReader = cryptionReader
}
@ -273,7 +274,7 @@ func (v *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, reader)
authReader = crypto.NewAuthenticationReader(auth, reader, sizeMask)
} else if request.Security.Is(protocol.SecurityType_CHACHA20_POLY1305) {
aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(v.requestBodyKey))
@ -285,7 +286,7 @@ func (v *ServerSession) DecodeRequestBody(request *protocol.RequestHeader, reade
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authReader = crypto.NewAuthenticationReader(auth, reader)
authReader = crypto.NewAuthenticationReader(auth, reader, sizeMask)
}
return buf.NewReader(authReader)
@ -310,6 +311,7 @@ func (v *ServerSession) EncodeResponseHeader(header *protocol.ResponseHeader, wr
func (v *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writer io.Writer) buf.Writer {
var authWriter io.Writer
sizeMask := serial.BytesToUint16(v.responseBodyKey[:2])
if request.Security.Is(protocol.SecurityType_NONE) {
if request.Option.Has(protocol.RequestOptionChunkStream) {
auth := &crypto.AEADAuthenticator{
@ -317,7 +319,7 @@ func (v *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, writer)
authWriter = crypto.NewAuthenticationWriter(auth, writer, sizeMask)
} else {
authWriter = writer
}
@ -328,7 +330,7 @@ func (v *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
NonceGenerator: crypto.NoOpBytesGenerator{},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, v.responseWriter)
authWriter = crypto.NewAuthenticationWriter(auth, v.responseWriter, sizeMask)
} else {
authWriter = v.responseWriter
}
@ -344,7 +346,7 @@ func (v *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, writer)
authWriter = crypto.NewAuthenticationWriter(auth, writer, sizeMask)
} else if request.Security.Is(protocol.SecurityType_CHACHA20_POLY1305) {
aead, _ := chacha20poly1305.New(GenerateChacha20Poly1305Key(v.responseBodyKey))
@ -356,7 +358,7 @@ func (v *ServerSession) EncodeResponseBody(request *protocol.RequestHeader, writ
},
AdditionalDataGenerator: crypto.NoOpBytesGenerator{},
}
authWriter = crypto.NewAuthenticationWriter(auth, writer)
authWriter = crypto.NewAuthenticationWriter(auth, writer, sizeMask)
}
return buf.NewWriter(authWriter)

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@ -1,33 +1,5 @@
/*Package websocket implements Websocket transport
Websocket transport implements a HTTP(S) compliable, surveillance proof transport method with plausible deniability.
To configure such a listener, set streamSettings to be ws. A http(s) listener will be listening at the port you have configured.
There is additional configure can be made at transport configure.
"wsSettings":{
"Path":"ws", // the path our ws handler bind
"Pto": "wss/ws", // the transport protocol we are using ws or wss(listen ws with tls)
"Cert":"cert.pem", // if you have configured to use wss, configure your cert here
"PrivKey":"priv.pem" //if you have configured to use wss, configure your privatekey here
}
To configure such a Dialer, set streamSettings to be ws.
There is additional configure can be made at transport configure.
"wsSettings":{
"Path":"ws", // the path our ws handler bind
"Pto": "wss/ws", // the transport protocol we are using ws or wss(listen ws with tls)
}
It is worth noting that accepting a non-valid cert is not supported as a self-signed or invalid cert can be a sign of a website that is not correctly configured and lead to additional investigation.
This transport was disscussed at
https://github.com/v2ray/v2ray-core/issues/224
*/
package websocket