mirror of
https://github.com/XTLS/Xray-core.git
synced 2024-11-22 08:31:28 +00:00
106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
package protocol
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import (
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"runtime"
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"github.com/xtls/xray-core/common/bitmask"
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"github.com/xtls/xray-core/common/net"
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"github.com/xtls/xray-core/common/uuid"
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"golang.org/x/sys/cpu"
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)
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// RequestCommand is a custom command in a proxy request.
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type RequestCommand byte
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const (
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RequestCommandTCP = RequestCommand(0x01)
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RequestCommandUDP = RequestCommand(0x02)
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RequestCommandMux = RequestCommand(0x03)
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)
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func (c RequestCommand) TransferType() TransferType {
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switch c {
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case RequestCommandTCP, RequestCommandMux:
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return TransferTypeStream
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case RequestCommandUDP:
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return TransferTypePacket
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default:
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return TransferTypeStream
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}
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}
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const (
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// [DEPRECATED 2023-06] RequestOptionChunkStream indicates request payload is chunked. Each chunk consists of length, authentication and payload.
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RequestOptionChunkStream bitmask.Byte = 0x01
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// 0x02 legacy setting
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RequestOptionChunkMasking bitmask.Byte = 0x04
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RequestOptionGlobalPadding bitmask.Byte = 0x08
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RequestOptionAuthenticatedLength bitmask.Byte = 0x10
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)
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type RequestHeader struct {
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Version byte
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Command RequestCommand
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Option bitmask.Byte
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Security SecurityType
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Port net.Port
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Address net.Address
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User *MemoryUser
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}
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func (h *RequestHeader) Destination() net.Destination {
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if h.Command == RequestCommandUDP {
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return net.UDPDestination(h.Address, h.Port)
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}
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return net.TCPDestination(h.Address, h.Port)
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}
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const (
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ResponseOptionConnectionReuse bitmask.Byte = 0x01
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)
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type ResponseCommand interface{}
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type ResponseHeader struct {
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Option bitmask.Byte
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Command ResponseCommand
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}
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type CommandSwitchAccount struct {
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Host net.Address
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Port net.Port
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ID uuid.UUID
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Level uint32
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ValidMin byte
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}
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var (
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hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
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hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
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// Keep in sync with crypto/aes/cipher_s390x.go.
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hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
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(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
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hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
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runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
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runtime.GOARCH == "s390x" && hasGCMAsmS390X
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)
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func (sc *SecurityConfig) GetSecurityType() SecurityType {
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if sc == nil || sc.Type == SecurityType_AUTO {
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if hasAESGCMHardwareSupport {
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return SecurityType_AES128_GCM
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}
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return SecurityType_CHACHA20_POLY1305
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}
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return sc.Type
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}
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func isDomainTooLong(domain string) bool {
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return len(domain) > 256
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}
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