Note

This code is intended as utilities mostly to help developers and Tor experts interact with their systems. Nobody has audited it for anonymity leaks (or worse). Use at your own risk.

ReadTheDocs

carml

carml is a command-line tool to query and control a running Tor (including Tor Browser Bundle). You can do things like:

  • list and remove streams and circuits;
  • monitor stream, circuit and address-map events;
  • watch for any Tor event and print it (or many) out;
  • monitor bandwidth;
  • run any Tor control-protocol command;
  • pipe through common Unix tools like grep, less, cut, etcetera;
  • download TBB through Tor, with pinned certs and signature checking;
  • …even spit out and run xplanet configs (with router/circuit markers)!

It is written in Python and uses Tor’s control-port via the txtorcon library.

Documentation at: carml.rtfd.org or carmlion6vt4az2q.onion/ Code at: github.com/meejah/carml

In some ways, carml started as a dumping-ground for things I happened to make Tor do at least once from Python code. Are there things you wish you could easily make Tor do from the command-line? File an enhancement bug at GitHub!

carml is also easy to extend, even with system- or virtualenv- installed packages.

Feedback is appreciated – pull-requests and bug-reports (including feature enhancements) welcome at GitHub or you can contact me in #tor-dev on OFTC or via meejah at meejah dot ca with the public-key contained in the source.

Some Quick Examples

(venv)meejah@machine:~$ carml circ --list
Connected to a Tor version "0.2.4.21 (git-c5a648cc6f218339)" (status: recommended).
Circuits:
   809: BUILT 29 minutes ago carmlfake0->~Unnamed->lobstertech
   810: BUILT 29 minutes ago ~carmelfake1->~toxiroxi->~SECxFreeBSD64
   811: BUILT 5 minutes ago carmelfake2->torpidsDEinterwerk->~rainbowwarrior
   813: BUILT 24 seconds ago carmlfake0->~arkhaios1->~IPredator
(venv)meejah@machine:~$ carml circ --delete 810
Connected to a Tor version "0.2.4.21 (git-c5a648cc6f218339)" (status: recommended).
Deleting circuit "810"...
...circuit 172 gone.
(venv)meejah@machine:~$ echo "hello world" | carml pastebin --once
12 bytes to share.
Launching Tor: connected.
People using Tor Browser Bundle can find your paste at (once the descriptor uploads):

   http://ok2byooigb4v53be.onion

If you wish to keep the hidden-service keys, they're in (until we shut down):
/dev/shm/tortmp6eHPg4
Awaiting descriptor upload...
Descriptor uploaded; hidden-service should be reachable.
Mon Jul 21 13:54:38 2014: Serving request to User-Agent "curl/7.37.0".
Shutting down.
(venv3)meejah@machine:~$ carml tbb
Getting recommended versions from "http://expyuzz4wqqyqhjn.onion/projects/torbrowser/RecommendedTBBVersions".
   7.5.5, 7.5.5-MacOS, 7.5.5-Linux, 7.5.5-Windows, 7.5.6, 7.5.6-MacOS,
   7.5.6-Linux, 7.5.6-Windows, 8.0a8, 8.0a8-MacOS, 8.0a8-Linux,
   8.0a8-Windows, 8.0a9, 8.0a9-MacOS, 8.0a9-Linux, 8.0a9-Windows
Note: there are alpha versions available; use --alpha to download.
Downloading "tor-browser-linux64-7.5.5_en-US.tar.xz.asc" from:
   http://rqef5a5mebgq46y5.onion/torbrowser/7.5.5/tor-browser-linux64-7.5.5_en-US.tar.xz.asc
Downloading "tor-browser-linux64-7.5.5_en-US.tar.xz" from:
   http://rqef5a5mebgq46y5.onion/torbrowser/7.5.5/tor-browser-linux64-7.5.5_en-US.tar.xz
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0.32 MiB/s
gpg: assuming signed data in 'tor-browser-linux64-7.5.5_en-US.tar.xz'
gpg: Signature made Sat 09 Jun 2018 06:42:37 AM MDT
gpg:                using RSA key D1483FA6C3C07136
gpg: Good signature from "Tor Browser Developers (signing key) <torbrowser@torproject.org>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: EF6E 286D DA85 EA2A 4BA7  DE68 4E2C 6E87 9329 8290
     Subkey fingerprint: A430 0A6B C93C 0877 A445  1486 D148 3FA6 C3C0 7136
Signature is good.
Extracting "tor-browser-linux64-7.5.5_en-US.tar.xz"...
  decompressing...
   20% extracted
   40% extracted
   60% extracted
   80% extracted
  100% extracted
Tor Browser Bundle downloaded and extracted.
running: ./tor-browser_en-US/Browser/start-tor-browser