On 05/15/2015 11:21 AM, intrigeri wrote: > Hi Micah, > > Micah Lee wrote (15 May 2015 00:11:53 GMT) : >> OnionShare recently stopped working in Tails > Can you please be more specific wrt. what version of Tails worked for > you, and what version stopped working?
I just tested a bunch of old versions of Tails in VMs and confirmed that it last worked in 1.2.3 and stopped working in 1.3. > >> Specifically, OnionShare is able to connect to the Tor control port, but >> when it tries to create a hidden service it now causes the entire tor >> process to crash, and it looks like this is related to Tor sandbox >> warnings. You can look at the issue on github to see the full tor logs, >> but basically there are a handful of "sandbox_intern_string(): Bug: No >> interned sandbox parameter found for /var/lib/tor/tmpBuBZmk" errors >> (/var/lib/tor/tmpBuBZmk being the hidden service dir), ending with a >> crash: "(Sandbox) Caught a bad syscall attempt (syscall open)". > Looks like a bug in Tor sandbox rather than anything Tails-specific > to me. Agreed, but I haven't run into it anywhere except in Tails. Maybe this is because all other platforms use the tor service from Tor Browser rather than a system Tor, and that doesn't have sandboxing enabled or something? >> So I can find very little information about what's causing this or how >> to fix it. Anyone here know? > 0. Make sure there are no AppArmor-related messages for Tor in `sudo > dmesg`. If there are, please report them to us. There are no AppArmor errors. > 1. Try without Tor sandboxing (configuring a bridge as documented via > Tails Greeter + Tor Launcher should be enough, since we disable the > sandbox when special Tor config is requested). When I enable a bridge it doesn't cause the tor crash. So I think this is a Tor sandbox issue. However, onionshare fails for some other reason when a bridge is enabled. I think this is an entirely separate issue, but I'm looking into it. > 2. If #1 confirmed that the only problem is caused by Tor sandboxing, > report a bug on the Tor bug tracker: we don't maintain the Tor > sandbox in Tails :) Apparently tor immediately crashes in Tor Browser if you edit its torrc and set "Sandbox 1". So now I'm testing using a system Tor in Debian, not Tails, and I can confirm that starting a hidden service causes a crash. I'll try to make a simpler piece of code that reproduces it and open a tor bug. -- Micah Lee OpenPGP: 0B1491929806596254700155FD720AD9EBA34B1C _______________________________________________ Tails-dev mailing list [email protected] https://mailman.boum.org/listinfo/tails-dev To unsubscribe from this list, send an empty email to [email protected].
