mirror of https://github.com/XTLS/Xray-core
109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
package kcp
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import (
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"crypto/cipher"
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"github.com/xtls/xray-core/common"
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"github.com/xtls/xray-core/transport/internet"
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)
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const protocolName = "mkcp"
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// GetMTUValue returns the value of MTU settings.
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func (c *Config) GetMTUValue() uint32 {
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if c == nil || c.Mtu == nil {
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return 1350
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}
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return c.Mtu.Value
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}
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// GetTTIValue returns the value of TTI settings.
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func (c *Config) GetTTIValue() uint32 {
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if c == nil || c.Tti == nil {
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return 50
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}
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return c.Tti.Value
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}
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// GetUplinkCapacityValue returns the value of UplinkCapacity settings.
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func (c *Config) GetUplinkCapacityValue() uint32 {
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if c == nil || c.UplinkCapacity == nil {
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return 5
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}
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return c.UplinkCapacity.Value
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}
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// GetDownlinkCapacityValue returns the value of DownlinkCapacity settings.
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func (c *Config) GetDownlinkCapacityValue() uint32 {
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if c == nil || c.DownlinkCapacity == nil {
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return 20
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}
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return c.DownlinkCapacity.Value
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}
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// GetWriteBufferSize returns the size of WriterBuffer in bytes.
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func (c *Config) GetWriteBufferSize() uint32 {
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if c == nil || c.WriteBuffer == nil {
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return 2 * 1024 * 1024
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}
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return c.WriteBuffer.Size
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}
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// GetReadBufferSize returns the size of ReadBuffer in bytes.
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func (c *Config) GetReadBufferSize() uint32 {
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if c == nil || c.ReadBuffer == nil {
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return 2 * 1024 * 1024
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}
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return c.ReadBuffer.Size
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}
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// GetSecurity returns the security settings.
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func (c *Config) GetSecurity() (cipher.AEAD, error) {
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if c.Seed != nil {
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return NewAEADAESGCMBasedOnSeed(c.Seed.Seed), nil
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}
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return NewSimpleAuthenticator(), nil
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}
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func (c *Config) GetPackerHeader() (internet.PacketHeader, error) {
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if c.HeaderConfig != nil {
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rawConfig, err := c.HeaderConfig.GetInstance()
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if err != nil {
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return nil, err
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}
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return internet.CreatePacketHeader(rawConfig)
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}
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return nil, nil
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}
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func (c *Config) GetSendingInFlightSize() uint32 {
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size := c.GetUplinkCapacityValue() * 1024 * 1024 / c.GetMTUValue() / (1000 / c.GetTTIValue())
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if size < 8 {
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size = 8
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}
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return size
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}
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func (c *Config) GetSendingBufferSize() uint32 {
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return c.GetWriteBufferSize() / c.GetMTUValue()
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}
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func (c *Config) GetReceivingInFlightSize() uint32 {
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size := c.GetDownlinkCapacityValue() * 1024 * 1024 / c.GetMTUValue() / (1000 / c.GetTTIValue())
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if size < 8 {
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size = 8
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}
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return size
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}
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func (c *Config) GetReceivingBufferSize() uint32 {
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return c.GetReadBufferSize() / c.GetMTUValue()
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}
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func init() {
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common.Must(internet.RegisterProtocolConfigCreator(protocolName, func() interface{} {
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return new(Config)
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}))
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}
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