v1.0.0

common/protocol/headers.go

@@ -0,0 +1,92 @@
+package protocol
+
+import (
+	"runtime"
+
+	"github.com/xtls/xray-core/v1/common/bitmask"
+	"github.com/xtls/xray-core/v1/common/net"
+	"github.com/xtls/xray-core/v1/common/uuid"
+)
+
+// RequestCommand is a custom command in a proxy request.
+type RequestCommand byte
+
+const (
+	RequestCommandTCP = RequestCommand(0x01)
+	RequestCommandUDP = RequestCommand(0x02)
+	RequestCommandMux = RequestCommand(0x03)
+)
+
+func (c RequestCommand) TransferType() TransferType {
+	switch c {
+	case RequestCommandTCP, RequestCommandMux:
+		return TransferTypeStream
+	case RequestCommandUDP:
+		return TransferTypePacket
+	default:
+		return TransferTypeStream
+	}
+}
+
+const (
+	// RequestOptionChunkStream indicates request payload is chunked. Each chunk consists of length, authentication and payload.
+	RequestOptionChunkStream bitmask.Byte = 0x01
+
+	// RequestOptionConnectionReuse indicates client side expects to reuse the connection.
+	RequestOptionConnectionReuse bitmask.Byte = 0x02
+
+	RequestOptionChunkMasking bitmask.Byte = 0x04
+
+	RequestOptionGlobalPadding bitmask.Byte = 0x08
+)
+
+type RequestHeader struct {
+	Version  byte
+	Command  RequestCommand
+	Option   bitmask.Byte
+	Security SecurityType
+	Port     net.Port
+	Address  net.Address
+	User     *MemoryUser
+}
+
+func (h *RequestHeader) Destination() net.Destination {
+	if h.Command == RequestCommandUDP {
+		return net.UDPDestination(h.Address, h.Port)
+	}
+	return net.TCPDestination(h.Address, h.Port)
+}
+
+const (
+	ResponseOptionConnectionReuse bitmask.Byte = 0x01
+)
+
+type ResponseCommand interface{}
+
+type ResponseHeader struct {
+	Option  bitmask.Byte
+	Command ResponseCommand
+}
+
+type CommandSwitchAccount struct {
+	Host     net.Address
+	Port     net.Port
+	ID       uuid.UUID
+	Level    uint32
+	AlterIds uint16
+	ValidMin byte
+}
+
+func (sc *SecurityConfig) GetSecurityType() SecurityType {
+	if sc == nil || sc.Type == SecurityType_AUTO {
+		if runtime.GOARCH == "amd64" || runtime.GOARCH == "s390x" || runtime.GOARCH == "arm64" {
+			return SecurityType_AES128_GCM
+		}
+		return SecurityType_CHACHA20_POLY1305
+	}
+	return sc.Type
+}
+
+func isDomainTooLong(domain string) bool {
+	return len(domain) > 256
+}