Re: [tor-talk] warns in logfile about onionskin length and non-OR circuit

[Roger Dingledine <arma@xxxxxxx>]

On Fri, Aug 29, 2014 at 06:47:57PM +0300, s7r wrote:
> Anyone can explain what this warnings are and if they are reason for
> concern?
> 
> [warn] Unexpected onionskin length after decryption: 58

A relay operator on #tor irc channel also reported seeing these (unless
that was you). It's harmless -- it basically means that some client sent
you a malformed (too short) create cell.

It's possible that this is a bug in our Tor client code, but I think
it's more likely that somebody else is working on a Tor client, and has
a bug in their code.

Since there isn't really much the relay operator can do about it, we've
downgraded the warning:
https://trac.torproject.org/projects/tor/ticket/12996

> [warn] Tried to establish rendezvous on non-OR or non-edge circuit.

Upcoming 0.2.5.x releases will have a slightly more useful log message
if this happens again:
https://trac.torproject.org/projects/tor/ticket/12997

--Roger

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