mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-10-31 00:08:08 -04:00
52 lines
1005 B
Go
52 lines
1005 B
Go
package srtp
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import (
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"math/rand"
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"github.com/v2ray/v2ray-core/common/alloc"
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"github.com/v2ray/v2ray-core/transport/internet"
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)
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type Config struct {
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Version byte
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Padding bool
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Extension bool
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CSRCCount byte
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Marker bool
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PayloadType byte
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}
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type ObfuscatorSRTP struct {
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header uint16
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number uint16
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}
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func (this *ObfuscatorSRTP) Overhead() int {
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return 4
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}
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func (this *ObfuscatorSRTP) Open(payload *alloc.Buffer) bool {
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payload.SliceFrom(this.Overhead())
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return true
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}
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func (this *ObfuscatorSRTP) Seal(payload *alloc.Buffer) {
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this.number++
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payload.PrependUint16(this.number)
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payload.PrependUint16(this.header)
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}
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type ObfuscatorSRTPFactory struct {
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}
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func (this ObfuscatorSRTPFactory) Create(rawSettings internet.AuthenticatorConfig) internet.Authenticator {
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return &ObfuscatorSRTP{
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header: 0xB5E8,
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number: uint16(rand.Intn(65536)),
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}
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}
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func init() {
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internet.RegisterAuthenticator("srtp", ObfuscatorSRTPFactory{}, func() interface{} { return new(Config) })
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}
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