freeradius

IMPORTANT: Adjusted for FreeRADIUS 3; not everything written below is still correct and some things have been added. Stay tuned for a better description...

2015-07-01 Steffen Klemer [email protected]

Overview

This module installs and configures FreeRADIUS server on Linux. This module was written for use with FreeRADIUS 2.x and has not been tested with FreeRADIUS 3.x. It was designed with CentOS in mind but should work on other distributions.

Module Description

This module installs FreeRADIUS from a distro-provided package and installs a number of customised config files to enable flexibility. It then provides some helpers to allow you to easily configure virtual servers (sites), modules, clients and other config items. Most of these items accept a flat config file which you supply either as a static file or a template - similar to the source and content parameters in Puppet's file resource.

This module is designed to make it more straightforward for RADIUS administrators to deploy RADIUS servers using Puppet. This module does not serve as a wizard and does not avoid having to have an understanding of FreeRADIUS.

Usage

This module provides several classes and defined types which take parameters.

Classes

`freeradius`

The freeradius class installs the base server. In the early releases, this class does not have many parameters as most values are hard-coded. I am working on parameterising more of the global settings to increase flexibility. Patches are welcome.

`control_socket`

Enable the control-socket virtual server. See also the radmin program. Default: false

`max_requests`

The maximum number of requests which the server keeps track of. This should be 256 multiplied by the number of clients. Default: 4096

`max_servers`

Limit on the total number of servers running. Default: 4096

`mysql_support`

Install support for MySQL. Note this only installs the package. Use freeradius::sql to configure SQL support. Default: false

`perl_support`

Install support for Perl. Default: false

`utils_support`

Install FreeRADIUS utils. Default: false

`ldap_support`

Install support for LDAP. Default: false

`wpa_supplicant`

Install wpa_supplicant utility. Default: false

`winbind_support`

Add the radius user to the winbind privileged group. You must install winbind separately. Default: false.

`syslog`

Add a syslog rule (using the jgazeley/syslog module). Default: false.

class { 'freeradius':
  control_socket  => true,
  max_requests    => 4096,
  max_servers     => 4096,
  mysql_support   => true,
  perl_support    => true,
  utils_support   => true,
  wpa_supplicant  => true,
  winbind_support => true,
  syslog          => true,
}

`freeradius::status_server`

The freeradius::status_server class enabled the status server. To remove the status server, do not include this class and the server will be removed.

`secret`

The shared secret for the status server. Required.

`port`

The port to listen for status requests on. Default: 18121

`listen`

The address to listen on. Defaults to listen on all addresses but you could set this to $::ipaddress or 127.0.0.1. Default: *

  # Enable status server
  class { 'freeradius::status_server':
    port   => '18120',
    secret => 't0pSecret!',
  }

`freeradius::control_socket`

The freeradius::control_socket class enables the control socket which can be used with RADMIN. To remove the control socket, do not include this class and the socket will be removed.

`mode`

Whether the control socket should be read-only or read-write. Choose from ro, rw. Default: ro.

Resources

`freeradius::attr`

Install arbitrary attribute filters from a flat file. These are installed in /etc/raddb/attr.d

freeradius::attr { 'eduroamlocal':
  source => 'puppet:///modules/site_freeradius/eduroamlocal',
}

`freeradius::blank`

Selectively blank certain stock config files that aren't required. This is preferable to deleting them because the package manager will replace certain files next time the package is upgraded, potentially causing unexpected behaviour.

The resource title should be the relative path from the FreeRADIUS config directory to the file(s) you want to blank. You can pass multiple files in an array.

freeradius::blank { 'sites-enabled/default': }

freeradius::blank { [
  'sites-enabled/default',
  'eap.conf',
]: }

`freeradius::cert`

Install certificates as provided. These are installed in /etc/raddb/certs. Beware that any certificates not deployed by Puppet will be purged from this directory.

freeradius::cert { 'mycert.pem':
  source => 'puppet:///modules/site_freeradius/mycert.pem',
  type   => 'key',
}

freeradius::cert { 'mycert.pem':
  content => '<your key/cert content here>',
  type    => 'key',
}

`type`

Set file permissions on the installed certificate differently depending on whether this is a private key or a public certificate. Note that the default is to treat the file as a private key and remove world-readable privileges. Allowable values: cert, key. Default: key.

`freeradius::client`

Define RADIUS clients as seen in clients.conf

freeradius::client { "wlan-controller01":
  ip        => '192.168.0.1',
  secret    => 'testing123',
  shortname => 'wlc01',
  nastype   => 'other',
  port      => '1645-1646',
  firewall  => true,
}

`ip`

The IP address of the client. For IPv6, use ipv6addr. ip and ip6 are mutually exclusive but one must be supplied. Default: undef.

`ip6`

The IPv6 address of the client. ip and ip6 are mutually exclusive but one must be supplied. Default: undef.

`shortname`

A short alias that is used in place of the IP address or fully qualified hostname provided in the first line of the section. Required.

`secret`

The RADIUS shared secret used for communication between the client/NAS and the RADIUS server. Required.

`virtual_server`

The virtual server that traffic from this client should be sent to. Default: undef.

`nastype`

The nastype attribute is used to tell the checkrad.pl script which NAS-specific method it should use when checking simultaneous use. See man clients.conf for a list of all options. Default: undef.

`netmask`

The netmask of the client, specified as an integer, e.g. 24. Default: undef.

`port`

The UDP port that this virtual server should listen on. Leave blank if this client is not tied to a virtual server. Currently the port number is only used to create firewall exceptions and you only need to specify it if you set firewall => true. Use port range syntax as in puppetlabs-firewall. Default: undef.

`firewall`

Create a firewall exception for this virtual server. If this is set to true, you must also supply port and either ip or ip6. Default: false.

`freeradius::config`

Install arbitrary config snippets from a flat file. These are installed in /etc/raddb/conf.d

freeradius::config { 'realm-checks.conf':
  source => 'puppet:///modules/site_freeradius/realm-checks.conf',
}

freeradius::config { 'realm-checks.conf':
  content => template('your_template),
}

`freeradius::dictionary`

Install custom dictionaries without breaking the default FreeRADIUS dictionary. Custom dictionaries are installed in /etc/raddb/dictionary.d and automatically included in the global dictionary.

freeradius::dictionary { 'mydict':
  source => 'puppet:///modules/site_freeradius/dictionary.mydict',
}

`freeradius::instantiate`

Instantiate a module that is not automatically instantiated.

freeradius::instantiate { 'mymodule': }

`freeradius::module`

Install a module from a flat file.

freeradius::module { 'buffered-sql':
  source => 'puppet:///modules/site_freeradius/buffered-sql',
}

freeradius::module { 'buffered-sql':
  content => template('some_template.erb)',
}

`freeradius::policy`

Install a policy from a flat file.

freeradius::policy { 'my-policies':
  source => 'puppet:///modules/site_freeradius/my-policies',
}

`freeradius::script`

Install a helper script, e.g. which might be called upon by a virtual server. These are placed in /etc/raddb/scripts and are not automatically included by the server.

freeradius::script{ 'myperlscript.pl':
  source => 'puppet:///modules/site_freeradius/myperlscript.pl',
}

`freeradius::site`

Install a virtual server (a.k.a. site) from a flat file. Sites are installed directly into /etc/raddb/sites-enabled. Any files in this directory that are not managed by Puppet will be removed.

freeradius::site { 'inner-tunnel':
  source => 'puppet:///modules/site_freeradius/inner-tunnel',
}

`freeradius::sql`

Configure SQL connections. You can define multiple database connections by invoking this resource multiple times. If you are using MySQL, don't forget to also set mysql_support => true in the base freeradius class.

freeradius::sql { 'mydatabase':
  database  => 'mysql',
  server    => '192.168.0.1',
  login     => 'radius',
  password  => 'topsecret',
  radius_db => 'radius',
}

`database`

Default: undef. Required. Specify which FreeRADIUS database driver to use. Choose one of mysql, mssql, oracle, postgresql

`server`

Default: localhost. Specify hostname of IP address of the database server.

`port`

TCP port to connect to the database. Default: 3306.

`login`

Default: radius. Username to connect to the databae.

`password`

Default: undef. Required. Password to connect to the database.

`radius_db`

Default: radius. Name of the database. Normally you should leave this alone. If you are using Oracle then use this instead: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SID=your_sid))).

`num_sql_socks`

Default: same as max_servers. Number of sql connections to make to the database server. Setting this to LESS than the number of threads means that some threads may starve, and you will see errors like "No connections available and at max connection limit". Setting this to MORE than the number of threads means that there are more connections than necessary. Leave blank to set it to the same value as the number of threads.

`lifetime`

Default: 0. Lifetime of an SQL socket. If you are having network issues such as TCP sessions expiring, you may need to set the socket lifetime. If set to non-zero, any open connections will be closed $lifetime seconds after they were first opened.

`max_queries`

Default: 0. Maximum number of queries used by an SQL socket. If you are having issues with SQL sockets lasting "too long", you can limit the number of queries performed over one socket. After $max_qeuries, the socket will be closed. Use 0 for "no limit".

`query_file`

query_file has been deprecated - use custom_query_file instead

Default: sql/${database}/dialup.conf. Relative path to the file which contains your SQL queries. By default, points to the dialup.conf specific to your database engine, so leave this blank if you are using stock queries.

If you need to use custom queries, it is recommended that you deploy your query file using freeradius::script to install the file into /etc/raddb/scripts/custom_dialup.conf and then set query_file to scripts/custom_dialup.conf.

`custom_query_file`

Default: null. Puppet fileserver path to a file which contains your SQL queries, i.e. dialup.conf. This option is intended to be a replacment for query_file, which requires separate deployment of the file. This option allows you to specify a Puppet-managed custom dialup.conf which is installed and loaded automatically. query_file must be left blank if you use custom_query_file.

`acct_table1`

If you want both stop and start records logged to the same SQL table, leave this as is. If you want them in different tables, put the start table in $acct_table1 and stop table in $acct_table2. Default : radacct

`acct_table2`

If you want both stop and start records logged to the same SQL table, leave this as is. If you want them in different tables, put the start table in $acct_table1 and stop table in $acct_table2. Default : radacct

`postauth_table`

Table for storing data after authentication

`authcheck_table`

Default: radcheck

`authreply_table`

Default: radreply

`groupcheck_table`

Default: radgroupcheck

`groupreply_table`

Default: radgroupreply

`usergroup_table`

Table to keep group info. Default: radusergroup

`read_groups`

If set to yes (default) we read the group tables. If set to no the user MUST have Fall-Through = Yes in the radreply table. Default: yes.

`deletestalesessions`

Remove stale session if checkrad does not see a double login. Default: yes.

`sqltrace`

Print all SQL statements when in debug mode (-x). Default: no.

`sqltracefile`

Location for SQL statements to be stored if $sqltrace = yes. Default: ${logdir}/sqltrace.sql

`connect_failure_retry_delay`

Number of seconds to dely retrying on a failed database connection (per socket). Default: 60.

`nas_table`

Table to keep radius client info. Default: nas.

`readclients`

Set to yes to read radius clients from the database ($nas_table) Clients will ONLY be read on server startup. For performance and security reasons, finding clients via SQL queries CANNOT be done "live" while the server is running. Default: no.

`freeradius::statusclient`

Define RADIUS clients, specifically to connect to the status server for monitoring. Very similar usage to freeradius::client but with fewer options.

`ip`

Default: undef. The IP address of the client. For IPv6, use ipv6addr. ip and ip6 are mutually exclusive but one must be supplied.

`ip6`

Default: undef. The IPv6 address of the client. ip and ip6 are mutually exclusive but one must be supplied.

`secret`

required. The RADIUS shared secret used for communication between the client/NAS and the RADIUS server.

`port`

Default: undef. The UDP port that this virtual server should listen on. Leave blank if this client is not tied to a virtual server.

`shortname`

required. A short alias that is used in place of the IP address or fully qualified hostname provided in the first line of the section.

Limitations

This module is targeted at FreeRADIUS 2.x running on CentOS 6. It has not been tested on other distributions, but might work. Likely sticking points with other distros are the names of packages, services and file paths.

This module has not been tested on FreeRADIUS 3.x and almost certainly won't work without modification. FreeRADIUS 3.x support in this module will come onto the roadmap at the same time that my employer decides to start looking FreeRADIUS 3.x.

This module was written for use with Puppet 3.6 and 3.7, but should be quite agnostic to new versions of Puppet.

Development

This module was written primarily for internal use - features we haven't needed to use probably haven't been written. Please send pull requests with new features and bug fixes. You are also welcome to file issues but I make no guarantees of development effort if the features aren't useful to my employer.

Release Notes

1.X.Y

Major Rewrite for freeradius 3
new proxy class
Some new options here and there
...

0.4.2

Provide new SQL option custom_query_file

0.4.1

Cease management of custom logging modules logtofile and logtosyslog since it does not make sense to manage these globally
Purge instantiation of unused modules

0.4.0

Move control_socket into its own class and add parameters
Improve the way the status_server is added or removed
Delete all unmanaged sites from sites-available

0.3.8

Purge all non-managed sites

0.3.7

Minor linting of code to improve score
Minor linting of metadata to improve score

0.3.6

Bugfixes and feature improvements in freeradius::sql

0.3.5

Add ability to customise SQL socket lifetimes
Purge all non-managed clients
Add defined type to blank out unneeded config files without deleting them

0.3.4

Correctly pass template content to control-socket

0.3.3

The default behaviour is now to purge anything in ${confdir}/certs that is not managed by Puppet

0.3.2

Various improvements to support Debian family
Optional content parameters in various resources

0.3.1

Fix a bug which prevents the module from working properly on Debian/Ubuntu (thanks @diranged)

0.3.0

Add ensure parameter to all defined types

0.2.0

Add support for customising sql.conf natively by adding freeradius::sql

0.1.4

Fix ambiguity about net/netmask in freeradius::client

0.1.3

Add support for managing firewall rules automatically
Add support for installation certificates & keys
Make syslog support an optional component
Various bugfixes

0.1.2

Improved modular installs with optional components
Improved support for Debian
Clarify dependencies on other modules
Lots of bugfixes

0.1.0

Initial release with support for installing FreeRADIUS and configuring servers, modules, clients and other objects using flat files.
Probably works only with FreeRADIUS 2.x
Only tested with CentOS 6

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freeradius

Table of Contents

Overview

Module Description

Usage

Classes

freeradius

control_socket

max_requests

max_servers

mysql_support

perl_support

utils_support

ldap_support

wpa_supplicant

winbind_support

syslog

freeradius::status_server

secret

port

listen

freeradius::control_socket

mode

Resources

freeradius::attr

freeradius::blank

freeradius::cert

type

freeradius::client

ip

ip6

shortname

secret

virtual_server

nastype

netmask

port

firewall

freeradius::config

freeradius::dictionary

freeradius::instantiate

freeradius::module

freeradius::policy

freeradius::script

freeradius::site

freeradius::sql

database

server

port

login

password

radius_db

num_sql_socks

lifetime

max_queries

query_file

custom_query_file

acct_table1

acct_table2

postauth_table

authcheck_table

authreply_table

groupcheck_table

groupreply_table

usergroup_table

read_groups

deletestalesessions

sqltrace

sqltracefile

connect_failure_retry_delay

nas_table

readclients

freeradius::statusclient

ip

`freeradius`

`control_socket`

`max_requests`

`max_servers`

`mysql_support`

`perl_support`

`utils_support`

`ldap_support`

`wpa_supplicant`

`winbind_support`

`syslog`

`freeradius::status_server`

`secret`

`port`

`listen`

`freeradius::control_socket`

`mode`

`freeradius::attr`

`freeradius::blank`

`freeradius::cert`

`type`

`freeradius::client`

`ip`

`ip6`

`shortname`

`secret`

`virtual_server`

`nastype`

`netmask`

`port`

`firewall`

`freeradius::config`

`freeradius::dictionary`

`freeradius::instantiate`

`freeradius::module`

`freeradius::policy`

`freeradius::script`

`freeradius::site`

`freeradius::sql`

`database`

`server`

`port`

`login`

`password`

`radius_db`

`num_sql_socks`

`lifetime`

`max_queries`

`query_file`

`custom_query_file`

`acct_table1`

`acct_table2`

`postauth_table`

`authcheck_table`

`authreply_table`

`groupcheck_table`

`groupreply_table`

`usergroup_table`

`read_groups`

`deletestalesessions`

`sqltrace`

`sqltracefile`

`connect_failure_retry_delay`

`nas_table`

`readclients`

`freeradius::statusclient`

`ip`

`ip6`

`secret`

`port`

`shortname`

Packages