mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-11-17 18:06:15 -05:00
128 lines
2.6 KiB
Go
128 lines
2.6 KiB
Go
package protocol
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import (
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"runtime"
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"v2ray.com/core/common/net"
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"v2ray.com/core/common/uuid"
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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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if c == RequestCommandTCP {
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return TransferTypeStream
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}
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return TransferTypePacket
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}
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// RequestOption is the options of a request.
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type RequestOption byte
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const (
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// RequestOptionChunkStream indicates request payload is chunked. Each chunk consists of length, authentication and payload.
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RequestOptionChunkStream = RequestOption(0x01)
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// RequestOptionConnectionReuse indicates client side expects to reuse the connection.
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RequestOptionConnectionReuse = RequestOption(0x02)
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RequestOptionChunkMasking = RequestOption(0x04)
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)
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func (o RequestOption) Has(option RequestOption) bool {
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return (o & option) == option
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}
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func (o *RequestOption) Set(option RequestOption) {
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*o = (*o | option)
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}
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func (o *RequestOption) Clear(option RequestOption) {
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*o = (*o & (^option))
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}
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type Security byte
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func (s Security) Is(t SecurityType) bool {
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return s == Security(t)
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}
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func NormSecurity(s Security) Security {
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if s.Is(SecurityType_UNKNOWN) {
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return Security(SecurityType_LEGACY)
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}
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return s
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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 RequestOption
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Security Security
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Port net.Port
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Address net.Address
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User *User
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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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type ResponseOption byte
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const (
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ResponseOptionConnectionReuse = ResponseOption(0x01)
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)
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func (o *ResponseOption) Set(option ResponseOption) {
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*o = (*o | option)
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}
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func (o ResponseOption) Has(option ResponseOption) bool {
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return (o & option) == option
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}
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func (o *ResponseOption) Clear(option ResponseOption) {
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*o = (*o & (^option))
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}
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type ResponseCommand interface{}
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type ResponseHeader struct {
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Option ResponseOption
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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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AlterIds uint16
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Level uint32
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ValidMin byte
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}
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func (sc *SecurityConfig) AsSecurity() Security {
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if sc == nil {
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return Security(SecurityType_LEGACY)
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}
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if sc.Type == SecurityType_AUTO {
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if runtime.GOARCH == "amd64" || runtime.GOARCH == "s390x" {
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return Security(SecurityType_AES128_GCM)
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}
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return Security(SecurityType_CHACHA20_POLY1305)
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}
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return NormSecurity(Security(sc.Type))
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}
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