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return a crypto error when receiving unexpected handshake messages

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This commit is contained in:
Marten Seemann
2019-05-31 17:57:07 +08:00
parent 06da72ae4e
commit 5d4a47a3f3
2 changed files with 11 additions and 3 deletions
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7
internal/handshake/crypto_setup.go
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@@ -16,6 +16,9 @@ import (
"github.com/marten-seemann/qtls"
)
// TLS unexpected_message alert
const alertUnexpectedMessage uint8 = 10
type messageType uint8
// TLS handshake message types.
@@ -333,10 +336,10 @@ func (h *cryptoSetup) checkEncryptionLevel(msgType messageType, encLevel protoco
case typeNewSessionTicket:
expected = protocol.Encryption1RTT
default:
return fmt.Errorf("unexpected handshake message: %d", msgType)
return qerr.CryptoError(alertUnexpectedMessage, fmt.Sprintf("unexpected handshake message: %d", msgType))
}
if encLevel != expected {
return fmt.Errorf("expected handshake message %s to have encryption level %s, has %s", msgType, expected, encLevel)
return qerr.CryptoError(alertUnexpectedMessage, fmt.Sprintf("expected handshake message %s to have encryption level %s, has %s", msgType, expected, encLevel))
}
return nil
}