Re: [tor-dev] permission denied when running snowflake-client with debian-tor user

On Mon, 11 Jun 2018 13:24:19 -0400 Arlo Breault arlo@torproject.org wrote:

When you launch the client binary without providing a broker url it tries to create a named pipe (mkfifo) to do signalling.

https://gitweb.torproject.org/pluggable-transports/snowflake.git/tree/client...

The PT spec explicitly forbids this behavior, to avoid this problem.

https://gitweb.torproject.org/torspec.git/tree/pt-spec.txt#n188

"TOR_PT_STATE_LOCATION"

  Specifies an absolute path to a directory where the PT is
  allowed to store state that will be persisted across
  invocations.  The directory is not required to exist when
  the PT is launched, however PT implementations SHOULD be
  able to create it as required.

  PTs MUST only store files in the path provided, and MUST NOT
  create or modify files elsewhere on the system.

  Example:

    TOR_PT_STATE_LOCATION=/var/lib/tor/pt_state/

Regards,