|
|
====== Configuration ======
|
|
|
|
|
|
===== Introduction =====
|
|
|
|
|
|
* The configuration file is formatted in XML and subdivided in 4 sections:
|
|
|
- Default options, shared among every device, user and service
|
|
|
- Devices declaration and settings
|
|
|
- Users declaration and settings
|
|
|
- Services declaration and settings
|
|
|
|
|
|
* The syntax is the following:
|
|
|
<configuration>
|
|
|
<defaults>
|
|
|
<!-- default options -->
|
|
|
</defaults>
|
|
|
|
|
|
<devices>
|
|
|
<!-- devices definitions -->
|
|
|
</devices>
|
|
|
|
|
|
<users>
|
|
|
<!-- users definitions -->
|
|
|
</users>
|
|
|
|
|
|
<services>
|
|
|
<!-- services definitions -->
|
|
|
</services>
|
|
|
</configuration>
|
|
|
|
|
|
* Location of the configuration file
|
|
|
|
|
|
By default, pam_usb.so and its tools will look for the configuration file
|
|
|
located in /etc/pusb/pusb.conf, but you can tell it to use a different file by
|
|
|
using the -c option:
|
|
|
|
|
|
# /etc/pam.d/common-auth
|
|
|
auth sufficient pam_usb.so -c /some/other/path.conf
|
|
|
auth required pam_unix.so nullok_secure
|
|
|
|
|
|
You will also have to use the -c option when calling pamusb's tools. For
|
|
|
instance, when calling pusb_hotplug:
|
|
|
pusb_hotplug -c /some/other/path.conf
|
|
|
|
|
|
===== Options =====
|
|
|
|
|
|
^ Name ^ Type ^ Default value ^ Description ^
|
|
|
| enable | Boolean | true | Enable pamusb
|
|
|
|
|
|
|
| debug | Boolean | false | Enable debug messages
|
|
|
|
|
|
|
| quiet | Boolean | false | Quiet mode (no verbose
|
|
|
output) |
|
|
|
| color_log | Boolean | true | Enable colored output
|
|
|
|
|
|
|
| one_time_pad | Boolean | true | Enable the use of one
|
|
|
time pads |
|
|
|
| probe_timeout | Integer | 10 | Time (in seconds) to
|
|
|
wait for the volume to be detected|
|
|
|
| hostname | String | Computer's hostname | Computer name. Must be
|
|
|
unique accross computers using the same device |
|
|
|
|
|
|
| system_pad_directory | String | .pusb | Relative path to the
|
|
|
user's home used to store one time pads |
|
|
|
| device_pad_directory | String | .pusb | Relative path to the
|
|
|
device used to store one time pads|
|
|
|
|
|
|
* Example:
|
|
|
|
|
|
<configuration>
|
|
|
<defaults>
|
|
|
<!-- Disable colored output by default -->
|
|
|
<option name="color_log">false</option>
|
|
|
<!-- Enable debug output -->
|
|
|
<option name="debug">true</option>
|
|
|
</defaults>
|
|
|
<users>
|
|
|
<user id="root">
|
|
|
<!-- Enable colored output for user "root" -->
|
|
|
<option name="color_log">true</option>
|
|
|
</user>
|
|
|
<user id="scox">
|
|
|
<!-- Disable debug output for user "scox" -->
|
|
|
<option name="debug">false</option>
|
|
|
</users>
|
|
|
<devices>
|
|
|
<device id="sandisk">
|
|
|
<!-- Wait 15 seconds instead of the default 10 seconds for the "sandisk"
|
|
|
device to be detected -->
|
|
|
<option name="probe_timeout">15</option>
|
|
|
</devices>
|
|
|
<services>
|
|
|
<service id="su">
|
|
|
<!-- Disable pamusb for "su" ("su" will ask for a password as usual) -->
|
|
|
<option name="enable">false<option>
|
|
|
</service>
|
|
|
</services>
|
|
|
</configuration>
|
|
|
|
|
|
===== Devices =====
|
|
|
|
|
|
^ Name ^ Type ^ Description ^
|
|
|
Example ^
|
|
|
| id | Attribute | Arbitrary device name |
|
|
|
MyDevice |
|
|
|
| vendor | Element | device's vendor name |
|
|
|
SanDisk Corp. |
|
|
|
| model | Element | device's model name |
|
|
|
Cruzer Titanium |
|
|
|
| serial | Element | serial number of the device |
|
|
|
SNDKXXXXXXXXXXXXXXXX |
|
|
|
| volume_uuid | Element | UUID of the device's volume used to store pads |
|
|
|
6F6B-42FC |
|
|
|
|
|
|
|
|
|
* Example:
|
|
|
|
|
|
<device id="MyDevice">
|
|
|
<vendor>SanDisk Corp.</vendor>
|
|
|
<model>Cruzer Titanium</model>
|
|
|
<serial>SNDKXXXXXXXXXXXXXXXX</serial>
|
|
|
<volume_uuid>6F6B-42FC</volume_uuid>
|
|
|
</device>
|
|
|
|
|
|
===== Users =====
|
|
|
|
|
|
^ Name ^ Type ^ Description ^
|
|
|
Example ^
|
|
|
| id | Attribute | Login of the user | root
|
|
|
|
|
|
|
| device | Element | id of the device associated to the user |
|
|
|
MyDevice |
|
|
|
| hotplug | Element | Hotplug commands, for use with pusb_hotplug | See
|
|
|
below |
|
|
|
|
|
|
* Example:
|
|
|
|
|
|
<user id="scox">
|
|
|
<device>MyDevice</device>
|
|
|
|
|
|
<!-- When the user "scox" removes the usb device, lock the screen and pause
|
|
|
beep-media-player -->
|
|
|
<hotplug event="lock">gnome-screensaver-command --lock</hotplug>
|
|
|
<hotplug event="lock">beep-media-player --pause</hotplug>
|
|
|
|
|
|
<!-- Resume operations when the usb device is plugged back and authenticated -->
|
|
|
<hotplug event="unlock">gnome-screensaver-command --deactivate</hotplug>
|
|
|
<hotplug event="unlock">beep-media-player --play</hotplug>
|
|
|
</user>
|
|
|
|
|
|
===== Services =====
|
|
|
|
|
|
^ Name ^ Type ^ Description ^ Example ^
|
|
|
| id | Attribute | Name of the service | su |
|
|
|
|
|
|
<service id="su">
|
|
|
<!--
|
|
|
Here you can put service specific options such as "enable", "debug" etc.
|
|
|
See the options section of this document.
|
|
|
-->
|
|
|
</service>
|
|
|
|
|
|
===== Full example =====
|
|
|
|
|
|
This example demonstrates how to write a pamusb configuration file and how to
|
|
|
combine and override options.
|
|
|
|
|
|
<configuration>
|
|
|
<!-- Default options -->
|
|
|
<defaults>
|
|
|
<!-- Enable debug output by default-->
|
|
|
<option name="debug">true</option> -->
|
|
|
<!-- Disable one time pads by default -->
|
|
|
<option name="one_time_pad">false</option> -->
|
|
|
</defaults>
|
|
|
|
|
|
<!-- Device settings -->
|
|
|
<devices>
|
|
|
<device id="MyDevice">
|
|
|
<!-- This part was generated by pusb_adm -->
|
|
|
<vendor>SanDisk Corp.</vendor>
|
|
|
<model>Cruzer Titanium</model>
|
|
|
<serial>SNDKXXXXXXXXXXXXXXXX</serial>
|
|
|
<volume_uuid>6F6B-42FC</volume_uuid>
|
|
|
|
|
|
<!--
|
|
|
Override the debug option previously enabled by "defaults".
|
|
|
Everytime a user associated to that device tries to authenticate,
|
|
|
debugging will be disabled.
|
|
|
For other users using different devices, the debugging will still be
|
|
|
enabled.
|
|
|
-->
|
|
|
<option name="debug">disable</option>
|
|
|
</device>
|
|
|
</devices>
|
|
|
|
|
|
<!-- User settings -->
|
|
|
<users>
|
|
|
|
|
|
<!-- Authenticate user "root" with device "MyDevice". -->
|
|
|
<user id="root">
|
|
|
<device>MyDevice</device>
|
|
|
|
|
|
<!--
|
|
|
One time pads were disabled in the "defaults" section.
|
|
|
Now we want to enable them for the user "root" so we override the option:
|
|
|
-->
|
|
|
<option name="one_time_pad">true</option>
|
|
|
</user>
|
|
|
|
|
|
<!-- Authenticate user "scox" with device "MyDevice". -->
|
|
|
<user id="scox">
|
|
|
<device>MyDevice</device>
|
|
|
|
|
|
<!-- We want pamusb to work in quiet mode when authenticating "scox", so we
|
|
|
override the "quiet" option -->
|
|
|
<option name="quiet">true</option>
|
|
|
|
|
|
<!-- Hotplugging settings, used by pusb_hotplug -->
|
|
|
<hotplug event="lock">gnome-screensaver-command --lock</hotplug>
|
|
|
<hotplug event="unlock">gnome-screensaver-command --deactivate</hotplug>
|
|
|
</user>
|
|
|
</users>
|
|
|
|
|
|
<!-- Services settings (e.g. gdm, su, sudo...) -->
|
|
|
<services>
|
|
|
|
|
|
<!-- Disable pamusb for gdm (a password will be asked as usual) -->
|
|
|
<service id="gdm">
|
|
|
<option name="enable">false</option>
|
|
|
</service>
|
|
|
|
|
|
<!--
|
|
|
We already disabled one time pads in the defaults section, but then
|
|
|
re-enabled them for the
|
|
|
user "root" in the users section.
|
|
|
|
|
|
Now we want to speed up console login for user root, so we simply override
|
|
|
again the one_time_pad option
|
|
|
for the "login" (console) service.
|
|
|
-->
|
|
|
<service id="login">
|
|
|
<option name="one_time_pad">false</option>
|
|
|
</service>
|
|
|
</services>
|
|
|
</configuration>
|
|
|
</code>
|