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This commit is contained in:
yuhan6665 2022-12-25 19:37:35 -05:00
parent c9b6fc0104
commit c4fbdf1b78
18 changed files with 76 additions and 67 deletions
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47
proxy/vless/encoding/encoding.go
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@ -31,10 +31,12 @@ const (
Version = byte(0)
)
var tls13SupportedVersions = []byte{0x00, 0x2b, 0x00, 0x02, 0x03, 0x04}
var tlsClientHandShakeStart = []byte{0x16, 0x03}
var tlsServerHandShakeStart = []byte{0x16, 0x03, 0x03}
var tlsApplicationDataStart = []byte{0x17, 0x03, 0x03}
var (
tls13SupportedVersions = []byte{0x00, 0x2b, 0x00, 0x02, 0x03, 0x04}
tlsClientHandShakeStart = []byte{0x16, 0x03}
tlsServerHandShakeStart = []byte{0x16, 0x03, 0x03}
tlsApplicationDataStart = []byte{0x17, 0x03, 0x03}
)
var addrParser = protocol.NewAddressParser(
protocol.AddressFamilyByte(byte(protocol.AddressTypeIPv4), net.AddressFamilyIPv4),
@ -247,9 +249,10 @@ func ReadV(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, c
}
// XtlsRead filter and read xtls protocol
func XtlsRead(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn net.Conn, rawConn syscall.RawConn,
counter stats.Counter, ctx context.Context, userUUID []byte, numberOfPacketToFilter *int, enableXtls *bool,
isTLS12orAbove *bool, isTLS *bool, cipher *uint16, remainingServerHello *int32) error {
func XtlsRead(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn net.Conn, rawConn syscall.RawConn,
counter stats.Counter, ctx context.Context, userUUID []byte, numberOfPacketToFilter *int, enableXtls *bool,
isTLS12orAbove *bool, isTLS *bool, cipher *uint16, remainingServerHello *int32,
) error {
err := func() error {
var ct stats.Counter
filterUUID := true
@ -326,9 +329,10 @@ func XtlsRead(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater
}
// XtlsWrite filter and write xtls protocol
func XtlsWrite(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn net.Conn, counter stats.Counter,
ctx context.Context, userUUID *[]byte, numberOfPacketToFilter *int, enableXtls *bool, isTLS12orAbove *bool, isTLS *bool,
cipher *uint16, remainingServerHello *int32) error {
func XtlsWrite(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn net.Conn, counter stats.Counter,
ctx context.Context, userUUID *[]byte, numberOfPacketToFilter *int, enableXtls *bool, isTLS12orAbove *bool, isTLS *bool,
cipher *uint16, remainingServerHello *int32,
) error {
err := func() error {
var ct stats.Counter
filterTlsApplicationData := true
@ -354,7 +358,7 @@ func XtlsWrite(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdate
buffer[i] = XtlsPadding(b, command, userUUID, ctx)
break
} else if !*isTLS12orAbove && *numberOfPacketToFilter <= 0 {
//maybe tls 1.1 or 1.0
// maybe tls 1.1 or 1.0
filterTlsApplicationData = false
buffer[i] = XtlsPadding(b, 0x01, userUUID, ctx)
break
@ -399,8 +403,9 @@ func XtlsWrite(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdate
}
// XtlsFilterTls filter and recognize tls 1.3 and other info
func XtlsFilterTls(buffer buf.MultiBuffer, numberOfPacketToFilter *int, enableXtls *bool, isTLS12orAbove *bool, isTLS *bool,
cipher *uint16, remainingServerHello *int32, ctx context.Context) {
func XtlsFilterTls(buffer buf.MultiBuffer, numberOfPacketToFilter *int, enableXtls *bool, isTLS12orAbove *bool, isTLS *bool,
cipher *uint16, remainingServerHello *int32, ctx context.Context,
) {
for _, b := range buffer {
*numberOfPacketToFilter--
if b.Len() >= 6 {
@ -411,8 +416,8 @@ func XtlsFilterTls(buffer buf.MultiBuffer, numberOfPacketToFilter *int, enableXt
*isTLS = true
if b.Len() >= 79 && *remainingServerHello >= 79 {
sessionIdLen := int32(b.Byte(43))
cipherSuite := b.BytesRange(43 + sessionIdLen + 1, 43 + sessionIdLen + 3)
*cipher = uint16(cipherSuite[0]) << 8 | uint16(cipherSuite[1])
cipherSuite := b.BytesRange(43+sessionIdLen+1, 43+sessionIdLen+3)
*cipher = uint16(cipherSuite[0])<<8 | uint16(cipherSuite[1])
} else {
newError("XtlsFilterTls short server hello, tls 1.2 or older? ", b.Len(), " ", *remainingServerHello).WriteToLog(session.ExportIDToError(ctx))
}
@ -431,7 +436,7 @@ func XtlsFilterTls(buffer buf.MultiBuffer, numberOfPacketToFilter *int, enableXt
v, ok := Tls13CipherSuiteDic[*cipher]
if !ok {
v = "Old cipher: " + strconv.FormatUint(uint64(*cipher), 16)
} else if (v != "TLS_AES_128_CCM_8_SHA256") {
} else if v != "TLS_AES_128_CCM_8_SHA256" {
*enableXtls = true
}
newError("XtlsFilterTls found tls 1.3! ", b.Len(), " ", v).WriteToLog(session.ExportIDToError(ctx))
@ -582,9 +587,9 @@ func XtlsUnpadding(ctx context.Context, buffer buf.MultiBuffer, userUUID []byte,
}
var Tls13CipherSuiteDic = map[uint16]string{
0x1301 : "TLS_AES_128_GCM_SHA256",
0x1302 : "TLS_AES_256_GCM_SHA384",
0x1303 : "TLS_CHACHA20_POLY1305_SHA256",
0x1304 : "TLS_AES_128_CCM_SHA256",
0x1305 : "TLS_AES_128_CCM_8_SHA256",
0x1301: "TLS_AES_128_GCM_SHA256",
0x1302: "TLS_AES_256_GCM_SHA384",
0x1303: "TLS_CHACHA20_POLY1305_SHA256",
0x1304: "TLS_AES_128_CCM_SHA256",
0x1305: "TLS_AES_128_CCM_8_SHA256",
}