mirror of
https://github.com/cmz0228/hysteria-dev.git
synced 2025-06-14 08:19:53 +00:00
75 lines
1.4 KiB
Go
75 lines
1.4 KiB
Go
package core
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import (
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"net"
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"os"
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"syscall"
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"time"
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)
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type Obfuscator interface {
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Deobfuscate(buf []byte, n int) int
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Obfuscate(p []byte) []byte
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}
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type obfsUDPConn struct {
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Orig *net.UDPConn
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Obfuscator Obfuscator
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}
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func (c *obfsUDPConn) SyscallConn() (syscall.RawConn, error) {
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return c.Orig.SyscallConn()
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}
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func (c *obfsUDPConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
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oldN, addr, err := c.Orig.ReadFrom(p)
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if oldN > 0 {
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newN := c.Obfuscator.Deobfuscate(p, oldN)
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return newN, addr, err
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} else {
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return 0, addr, err
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}
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}
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func (c *obfsUDPConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
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np := c.Obfuscator.Obfuscate(p)
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_, err = c.Orig.WriteTo(np, addr)
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if err != nil {
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return 0, err
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} else {
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return len(p), nil
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}
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}
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func (c *obfsUDPConn) Close() error {
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return c.Orig.Close()
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}
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func (c *obfsUDPConn) LocalAddr() net.Addr {
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return c.Orig.LocalAddr()
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}
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func (c *obfsUDPConn) SetDeadline(t time.Time) error {
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return c.Orig.SetDeadline(t)
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}
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func (c *obfsUDPConn) SetReadDeadline(t time.Time) error {
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return c.Orig.SetReadDeadline(t)
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}
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func (c *obfsUDPConn) SetWriteDeadline(t time.Time) error {
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return c.Orig.SetWriteDeadline(t)
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}
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func (c *obfsUDPConn) SetReadBuffer(bytes int) error {
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return c.Orig.SetReadBuffer(bytes)
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}
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func (c *obfsUDPConn) SetWriteBuffer(bytes int) error {
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return c.Orig.SetWriteBuffer(bytes)
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}
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func (c *obfsUDPConn) File() (f *os.File, err error) {
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return c.Orig.File()
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}
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