[Tor-BSD] [CFT] HardenedBSD's security/tor-capsicum port

Shawn Webb shawn.webb at hardenedbsd.org
Tue Feb 27 13:44:00 EST 2018

On Tue, Feb 27, 2018 at 12:48:29PM -0500, Shawn Webb wrote:
> Hey All,
> Many of you know that I've been working on Capsicum support in Tor.
> I've added a ports entry for it in the HardenedBSD ports tree,
> security/tor-capsicum.
> To enable capmode, you'll need to add "Sandbox 1" to your torrc. Note
> that since libevent does not support Capsicum and creates sockets on
> its own, using DNSPort (most commonly used in transparent proxy
> setups) with capmode enabled is unsupported. I've filed a bug report
> with libevent to start the discussion around adding a
> Capsicum-friendly API for socket creation/maintenance.
> On HardenedBSD 12-CURRENT/amd64, security/tor-capsicum is compiled with:
>   - PIE
>   - Full RELRO
>   - CFI (without the cfi-icall scheme)
>   - SafeStack
>   - Retpoline
>   - Capsicum support
> Please test and let me know any success or failure stories.

I've now tested in relay mode. It appears there's a bug that prevents
relay mode from working. I hope to have this resolved within a week.

So, don't run with Capsicum enabled if you're running a relay.
However, please test if you're running simply as a client node.


Shawn Webb
Cofounder and Security Engineer

Tor-ified Signal:    +1 443-546-8752
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