mirror of
https://github.com/amnezia-vpn/amneziawg-go.git
synced 2026-05-17 00:05:50 +03:00
0361c54dca
- fix the bug that transport packet interprets as init/resp/cookie with the same size - cleanup error responses - reduce buffer allocations
48 lines
774 B
Go
48 lines
774 B
Go
package device
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import (
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"bytes"
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"encoding/hex"
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"errors"
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"strings"
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)
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func newBytesObf(val string) (obf, error) {
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val = strings.TrimPrefix(val, "0x")
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if len(val) == 0 {
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return nil, errors.New("empty argument")
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}
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if len(val)%2 != 0 {
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return nil, errors.New("odd amount of symbols")
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}
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bytes, err := hex.DecodeString(val)
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if err != nil {
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return nil, err
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}
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return &bytesObf{data: bytes}, nil
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}
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type bytesObf struct {
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data []byte
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}
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func (o *bytesObf) Obfuscate(dst, src []byte) {
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copy(dst, o.data)
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}
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func (o *bytesObf) Deobfuscate(dst, src []byte) bool {
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return bytes.Equal(o.data, src[:o.ObfuscatedLen(0)])
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}
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func (o *bytesObf) ObfuscatedLen(srcLen int) int {
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return len(o.data)
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}
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func (o *bytesObf) DeobfuscatedLen(srcLen int) int {
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return 0
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}
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