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when the encryption level changes, reject data on that crypto stream

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There are two checks that need to be performed:
1. the crypto stream must not have any more data queued for reading
2. when receiving CRYPTO frames for that crypto stream afterwards, they
must not exceed the highest offset received on that stream
This commit is contained in:
Marten Seemann 2018-10-20 11:22:05 +09:00
parent fe442e4d19
commit 387c28d707
10 changed files with 156 additions and 26 deletions
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6
crypto_stream_manager.go
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@ -8,7 +8,7 @@ import (
)
type cryptoDataHandler interface {
HandleMessage([]byte, protocol.EncryptionLevel)
HandleMessage([]byte, protocol.EncryptionLevel) bool
}
type cryptoStreamManager struct {
@ -48,6 +48,8 @@ func (m *cryptoStreamManager) HandleCryptoFrame(frame *wire.CryptoFrame, encLeve
if data == nil {
return nil
}
m.cryptoHandler.HandleMessage(data, encLevel)
if encLevelFinished := m.cryptoHandler.HandleMessage(data, encLevel); encLevelFinished {
return str.Finish()
}
}
}