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LibTLS: Try to disambiguate errors in case of failure

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Not particularly helpful, but better than nothing.
This commit is contained in:
AnotherTest 2020-05-05 13:24:00 +04:30 • committed by Andreas Kling
parent fcd922f7b1
commit 2a29e668bd
3 changed files with 74 additions and 28 deletions
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24
Libraries/LibTLS/TLSv12.cpp
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@ -519,4 +519,28 @@ void TLSv12::ensure_hmac(size_t digest_size, bool local)
m_hmac_remote = move(hmac);
}
void TLSv12::try_disambiguate_error() const
{
dbg() << "Possible failure cause: ";
switch ((AlertDescription)m_context.critical_error) {
case AlertDescription::HandshakeFailure:
if (!m_context.cipher_spec_set) {
dbg() << "- No cipher suite in common with " << m_context.SNI;
} else {
dbg() << "- Unknown internal issue";
}
break;
case AlertDescription::InsufficientSecurity:
dbg() << "- No cipher suite in common with " << m_context.SNI << " (the server is oh so secure)";
break;
case AlertDescription::DecryptionFailed:
dbg() << "- Bad MAC record from our side";
dbg() << "- Bad block cipher padding";
break;
default:
dbg() << "- No one knows";
break;
}
}
}