Whonix documentation update #10
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@ -10,18 +10,47 @@ This functionality may be incomplete and/or dangerous if misused. Please help us
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:::
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Whonix uses [Onion Grater](https://www.whonix.org/wiki/Onion-grater) to guard access to the control port. We have packaged
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an oniongrater configuration `cwtch-whonix.yml` with Cwtch on Linux.
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## Configure the Whonix-Gateway
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When launching, Cwtch on Whonix should be passed the `CWTCH_TAILS=true` environment variables to automatically configure Cwtch for running in a Whonix-like environment:
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The following steps should be done in the Whonix-Gateway.
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`exec env CWTCH_TAILS=true LD_LIBRARY_PATH=~/.local/lib/cwtch/:~/.local/lib/cwtch/Tor ~/.local/lib/cwtch/cwtch`
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### Onion Grater
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Optionally, it may be desirable to pass either or both of two additional flags:
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Whonix uses [Onion Grater](https://www.whonix.org/wiki/Onion-grater) to guard access to the control port. We have packaged an onion-grater configuration [`cwtch-whonix.yml` ](https://git.openprivacy.ca/cwtch.im/cwtch-ui/src/branch/trunk/linux/cwtch-whonix.yml) which is present in the root directory of the tarball.
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- `CWTCH_RESTRICT_PORTS` - forces connectivity to bind to a subset of ports `15000-15378`
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- `CWTCH_BIND_EXTERNAL_WHONIX` - forces connectivity to bind to external interfaces (only supported/recommended on certain Whonix-based setups. Please open an issue if you think this should be expanded.)
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This file needs to be placed in `/usr/share/doc/onion-grater-merger/examples/40_cwtch.yml`.
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Whonix has also packaged the profile [`40_cwtch.yml`_](https://github.com/Whonix/onion-grater/blob/master/usr/share/doc/onion-grater-merger/examples/40_cwtch.yml), therefore you can use either one.
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Enable the Cwtch onion-grater profile:
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```shell
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sudo onion-grater-add 40_cwtch
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```
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## Configure the Whonix-Workstation
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The following steps should be done in the Whonix-Workstation.
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### Linux Firewall
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The Whonix-Workstation Firewall needs to have the possible Cwtch binding port open. Follow the [upstream firewall guide](https://www.whonix.org/wiki/Whonix-Workstation_Firewall#Open_an_Incoming_Port).
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Use the following configuration in the file `/usr/local/etc/whonix_firewall.d/50_user.conf`:
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```shell
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EXTERNAL_OPEN_PORTS+=" $(seq 15000 15378) "
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```
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### Running Cwtch
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When launching, Cwtch on Whonix, some environment variables must be set:
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- `CWTCH_TAILS=true` - automatically configure Cwtch for running in a Whonix-like environment.
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- `CWTCH_RESTRICT_PORTS=true` - forces connectivity to bind to a subset of ports `15000-15378`, easier to manage on the firewall configuration.
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- `CWTCH_BIND_EXTERNAL_WHONIX=true` - forces connectivity to bind to external interfaces (only supported/recommended on for Whonix-based setups where the machine (Workstation) which is running Cwtch is firewalled, where the only source of network is through the Gateway.
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```shell
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cd ~/.local/lib/cwtch
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env LD_LIBRARY_PATH=~/.local/lib/cwtch/:~/.local/lib/cwtch/Tor CWTCH_TAILS=true CWTCH_RESTRICT_PORTS=true CWTCH_BIND_EXTERNAL_WHONIX=true ~/.local/lib/cwtch/cwtch
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```
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:::info Install Location
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@ -29,76 +58,21 @@ The above command, and the below onion grater configuration assume that Cwtch wa
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:::
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## Onion Grater Configuration
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# Removing Cwtch from Whonix
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The oniongrater configuration `cwtch-whonix.yml` is reproduced below. As noted this configuration is can likely be restricted much
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further.
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## Remove configuration from the Whonix-Gateway
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This file needs to be placed in `/usr/share/doc/onion-grater-merger/examples/` on the **Whonix Gateway** portion of he system.
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The following steps should be done in the Whonix-Gateway.
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You can then use `sudo onion-grater-add cwtch-whonix` to enable the onion grater configuration.
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```
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# TODO: This can likely be restricted even further, especially in regards to the ADD_ONION pattern
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- exe-paths:
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- ''
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users:
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- '*'
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hosts:
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- '*'
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commands:
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AUTHCHALLENGE:
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- 'SAFECOOKIE .*'
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SETEVENTS:
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- 'CIRC WARN ERR'
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- 'CIRC ORCONN INFO NOTICE WARN ERR HS_DESC HS_DESC_CONTENT'
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GETINFO:
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- 'net/listeners/socks'
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- '.*'
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GETCONF:
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- 'DisableNetwork'
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SETCONF:
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- 'DisableNetwork.*'
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ADD_ONION:
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- '.*'
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DEL_ONION:
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- '.+'
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HSFETCH:
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- '.+'
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events:
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CIRC:
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suppress: true
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ORCONN:
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suppress: true
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INFO:
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suppress: true
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NOTICE:
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suppress: true
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WARN:
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suppress: true
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ERR:
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suppress: true
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HS_DESC:
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response:
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- pattern: '650 HS_DESC CREATED (\S+) (\S+) (\S+) \S+ (.+)'
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replacement: '650 HS_DESC CREATED {} {} {} redacted {}'
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- pattern: '650 HS_DESC UPLOAD (\S+) (\S+) .*'
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replacement: '650 HS_DESC UPLOAD {} {} redacted redacted'
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- pattern: '650 HS_DESC UPLOADED (\S+) (\S+) .+'
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replacement: '650 HS_DESC UPLOADED {} {} redacted'
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- pattern: '650 HS_DESC REQUESTED (\S+) NO_AUTH'
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replacement: '650 HS_DESC REQUESTED {} NO_AUTH'
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- pattern: '650 HS_DESC REQUESTED (\S+) NO_AUTH \S+ \S+'
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replacement: '650 HS_DESC REQUESTED {} NO_AUTH redacted redacted'
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- pattern: '650 HS_DESC RECEIVED (\S+) NO_AUTH \S+ \S+'
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replacement: '650 HS_DESC RECEIVED {} NO_AUTH redacted redacted'
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- pattern: '.*'
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replacement: ''
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HS_DESC_CONTENT:
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suppress: true
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Disable the Cwtch onion-grater profile:
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```shell
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sudo onion-grater-remove cwtch-whonix
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```
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## Removing Cwtch
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## Remove configuration from the Whonix-Workstation
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You can use `sudo onion-grater-remove cwtch-whonix` to disable the Cwtch Onion Grater configuration, and then delete the Cwtch
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application and the `$HOME/.cwtch` data directory.
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The following steps should be done in the Whonix-Workstation.
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Delete the Cwtch application directory `$HOME/.local/lib/cwtch` and Cwtch data directory `$HOME/.cwtch`.
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The firewall ports should also be closed manually by removing the configuration added above and reloading the firewall.
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