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try decrypting undecryptable packets when the encryption level changes

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There's no need to do this asynchronously any more when using TLS.
This commit is contained in:
Marten Seemann 2018-10-20 11:40:33 +09:00
parent 387c28d707
commit b63c81f0bf
5 changed files with 32 additions and 38 deletions
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10
crypto_stream_manager.go
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@ -30,7 +30,7 @@ func newCryptoStreamManager(
}
}
func (m *cryptoStreamManager) HandleCryptoFrame(frame *wire.CryptoFrame, encLevel protocol.EncryptionLevel) error {
func (m *cryptoStreamManager) HandleCryptoFrame(frame *wire.CryptoFrame, encLevel protocol.EncryptionLevel) (bool /* encryption level changed */, error) {
var str cryptoStream
switch encLevel {
case protocol.EncryptionInitial:
@ -38,18 +38,18 @@ func (m *cryptoStreamManager) HandleCryptoFrame(frame *wire.CryptoFrame, encLeve
case protocol.EncryptionHandshake:
str = m.handshakeStream
default:
return fmt.Errorf("received CRYPTO frame with unexpected encryption level: %s", encLevel)
return false, fmt.Errorf("received CRYPTO frame with unexpected encryption level: %s", encLevel)
}
if err := str.HandleCryptoFrame(frame); err != nil {
return err
return false, err
}
for {
data := str.GetCryptoData()
if data == nil {
return nil
return false, nil
}
if encLevelFinished := m.cryptoHandler.HandleMessage(data, encLevel); encLevelFinished {
return str.Finish()
return true, str.Finish()
}
}
}