ldap

# -*- text -*-
#
#  $Id: 1f0ee0383834684c7314a89be40003933023c401 $

#
#  Lightweight Directory Access Protocol (LDAP)
#
ldap {
	#  Note that this needs to match the name(s) in the LDAP server
	#  certificate, if you're using ldaps.  See OpenLDAP documentation
	#  for the behavioral semantics of specifying more than one host.
	server = "@LDAP_HOST@"

	#  Port to connect on, defaults to 389. Setting this to 636 will enable
	#  LDAPS if start_tls (see below) is not able to be used.
	port = "@LDAP_PORT@"

	#  Administrator account for searching and possibly modifying.
	identity = "@LDAP_USER@"
	password = "@LDAP_PASS@"

	#  Unless overridden in another section, the dn from which all
	#  searches will start from.
	base_dn = "@LDAP_BASEDN@"

	#
	#  Generic valuepair attribute
	#

	#  If set, this will attribute will be retrieved in addition to any
	#  mapped attributes.
	#
	#  Values should be in the format:
	#  	<radius attr> <op> <value>
	#
	#  Where:
	#  	<radius attr>:	Is the attribute you wish to create
	# 			with any valid list and request qualifiers.
	#  	<op>: 		Is any assignment attribute (=, :=, +=, -=).
	#  	<value>:	Is the value to parse into the new valuepair.
	# 			If the attribute name is wrapped in double
	# 			quotes it will be xlat expanded.
#	valuepair_attribute = "radiusAttribute"

	#
	#  Mapping of LDAP directory attributes to RADIUS dictionary attributes.
	#

	#  WARNING: Although this format is almost identical to the unlang
	#  update section format, it does *NOT* mean that you can use other
	#  unlang constructs in module configuration files.
	#
	#  Configuration items are in the format:
	# 	<radius attr> <op> <ldap attr>
	#
	#  Where:
	#  	<radius attr>:	Is the destination RADIUS attribute
	# 			with any valid list and request qualifiers.
	#  	<op>: 		Is any assignment attribute (=, :=, +=, -=).
	#  	<ldap attr>:	Is the attribute associated with user or
	#			profile objects in the LDAP directory.
	# 			If the attribute name is wrapped in double
	# 			quotes it will be xlat expanded.
	#
	#  Request and list qualifiers may also be placed after the 'update'
	#  section name to set defaults destination requests/lists
	#  for unqualified RADIUS attributes.
	#
	#  Note: LDAP attribute names should be single quoted unless you want
	#  the name value to be derived from an xlat expansion, or an
	#  attribute ref.
	update {
		control:Password-With-Header	+= 'userPassword'
#		control:NT-Password		:= 'ntPassword'
#		reply:Reply-Message		:= 'radiusReplyMessage'
#		reply:Tunnel-Type		:= 'radiusTunnelType'
#		reply:Tunnel-Medium-Type	:= 'radiusTunnelMediumType'
#		reply:Tunnel-Private-Group-ID	:= 'radiusTunnelPrivategroupId'

		#  These are provided for backwards compatibility.
		#  Where only a list is specified as the RADIUS attribute,
		#  the value of the LDAP attribute is parsed as a valuepair
		#  in the same format as the 'valuepair_attribute' (above).
#		control:			+= 'radiusCheckAttributes'
#		reply:				+= 'radiusReplyAttributes'
	}

	#  Set to yes if you have eDirectory and want to use the universal
	#  password mechanism.
#	edir = no

	#  Set to yes if you want to bind as the user after retrieving the
	#  Cleartext-Password. This will consume the login grace, and
	#  verify user authorization.
#	edir_autz = no

	#  Note: set_auth_type was removed in v3.x.x
	#  Equivalent functionality can be achieved by adding the following
	#  stanza to the authorize {} section of your virtual server.
	#
	#    ldap
	#    if ((ok || updated) && User-Password) {
	#        update {
	#            control:Auth-Type := ldap
	#        }
	#    }

	#
	#  User object identification.
	#
	user {
		#  Where to start searching in the tree for users
		base_dn = "@LDAP_USER_BASEDN@"

		#  Filter for user objects, should be specific enough
		#  to identify a single user object.
		filter = "(uid=%{%{Stripped-User-Name}:-%{User-Name}})"

		#  Search scope, may be 'base', 'one', sub' or 'children'
#		scope = 'sub'

		#  If this is undefined, anyone is authorised.
		#  If it is defined, the contents of this attribute
		#  determine whether or not the user is authorised
#		access_attribute = "dialupAccess"

		#  Control whether the presence of "access_attribute"
		#  allows access, or denys access.
		#
		#  If "yes", and the access_attribute is present, or
		#  "no" and the access_attribute is absent then access
		#  will be allowed.
		#
		#  If "yes", and the access_attribute is absent, or
		#  "no" and the access_attribute is present, then
		#  access will not be allowed.
		#
		#  If the value of the access_attribute is "false", it
		#  will negate the result.
		#
		#  e.g.
		#    access_positive = yes
		#    access_attribute = userAccessAllowed
		#
		#    userAccessAllowed = false
		#
		#  Will result in the user being locked out.
#		access_positive = yes
	}

	#
	#  User membership checking.
	#
	group {
		#  Where to start searching in the tree for groups
		base_dn = "@LDAP_GROUP_BASEDN@"

		#  Filter for group objects, should match all available
		#  group objects a user might be a member of.
		filter = "(objectClass=posixGroup)"

		# Search scope, may be 'base', 'one', sub' or 'children'
#		scope = 'sub'

		#  Attribute that uniquely identifies a group.
		#  Is used when converting group DNs to group
		#  names.
		name_attribute = cn

		#  Filter to find group objects a user is a member of.
		#  That is, group objects with attributes that
		#  identify members (the inverse of membership_attribute).
		membership_filter = "(|(member=%{control:Ldap-UserDn})(memberUid=%{%{Stripped-User-Name}:-%{User-Name}}))"

		#  The attribute in user objects which contain the names
		#  or DNs of groups a user is a member of.
		#
		#  Unless a conversion between group name and group DN is
		#  needed, there's no requirement for the group objects
		#  referenced to actually exist.
#		membership_attribute = "memberOf"

		#  If cacheable_name or cacheable_dn are enabled,
		#  all group information for the user will be
		#  retrieved from the directory and written to LDAP-Group
		#  attributes appropriate for the instance of rlm_ldap.
		#
		#  For group comparisons these attributes will be checked
		#  instead of querying the LDAP directory directly.
		#
		#  This feature is intended to be used with rlm_cache.
		#
		#  If you wish to use this feature, you should enable
		#  the type that matches the format of your check items
		#  i.e. if your groups are specified as DNs then enable
		#  cacheable_dn else enable cacheable_name.
#		cacheable_name = "no"
#		cacheable_dn = "no"

		#  Override the normal cache attribute (<inst>-LDAP-Group)
		#  and create a custom attribute.  This can help if multiple
		#  module instances are used in fail-over.
#		cache_attribute = "LDAP-Cached-Membership"
	}

	#
	#  User profiles. RADIUS profile objects contain sets of attributes
	#  to insert into the request. These attributes are mapped using
	#  the same mapping scheme applied to user objects.
	#
	profile {
		#  Filter for RADIUS profile objects
#		filter = "(objectclass=radiusprofile)"

		#  The default profile applied to all users.
#		default = "cn=radprofile,dc=example,dc=org"

		#  The list of profiles which are applied (after the default)
		#  to all users.
		#  The "User-Profile" attribute in the control list
		#  will override this setting at run-time.
#		attribute = "radiusProfileDn"
	}

	#
	#  Bulk load clients from the directory
	#
	client {
		#   Where to start searching in the tree for clients
		base_dn = "@LDAP_CLIENT_BASEDN@"

		#
		#  Filter to match client objects
		#
		filter = '(objectClass=frClient)'

		# Search scope, may be 'base', 'one', 'sub' or 'children'
#		scope = 'sub'

		#
		#  Client attribute mappings are in the format:
		#      <client attribute> = <ldap attribute>
		#
		#  Arbitrary attributes (accessible by %{client:<attr>}) are not yet supported.
		#
		#  The following attributes are required:
		#    * identifier - IPv4 address, or IPv4 address with prefix, or hostname.
		#    * secret - RADIUS shared secret.
		#
		#  The following attributes are optional:
		#    * shortname - Friendly name associated with the client
		#    * nas_type - NAS Type
		#    * virtual_server - Virtual server to associate the client with
		#    * require_message_authenticator - Whether we require the Message-Authenticator
		#      attribute to be present in requests from the client.
		#
		#  Schemas are available in doc/schemas/ldap for openldap and eDirectory
		#
		attribute {
			identifier			= 'radiusClientIdentifier'
			secret				= 'radiusClientSecret'
#			shortname			= 'radiusClientShortname'
#			nas_type			= 'radiusClientType'
#			virtual_server			= 'radiusClientVirtualServer'
#			require_message_authenticator	= 'radiusClientRequireMa'
		}
	}

	#  Load clients on startup
#	read_clients = no

	#
	#  Modify user object on receiving Accounting-Request
	#

	#  Useful for recording things like the last time the user logged
	#  in, or the Acct-Session-ID for CoA/DM.
	#
	#  LDAP modification items are in the format:
	# 	<ldap attr> <op> <value>
	#
	#  Where:
	#  	<ldap attr>:	The LDAP attribute to add modify or delete.
	#  	<op>: 		One of the assignment operators:
	#			(:=, +=, -=, ++).
	#			Note: '=' is *not* supported.
	#  	<value>:	The value to add modify or delete.
	#
	#  WARNING: If using the ':=' operator with a multi-valued LDAP
	#  attribute, all instances of the attribute will be removed and
	#  replaced with a single attribute.
	accounting {
		reference = "%{tolower:type.%{Acct-Status-Type}}"

		type {
			start {
				update {
					description := "Online at %S"
				}
			}

			interim-update {
				update {
					description := "Last seen at %S"
				}
			}

			stop {
				update {
					description := "Offline at %S"
				}
			}
		}
	}

	#
	#  Post-Auth can modify LDAP objects too
	#
	post-auth {
		update {
			description := "Authenticated at %S"
		}
	}

	#
	#  LDAP connection-specific options.
	#
	#  These options set timeouts, keep-alives, etc. for the connections.
	#
	options {
		#  Control under which situations aliases are followed.
		#  May be one of 'never', 'searching', 'finding' or 'always'
		#  default: libldap's default which is usually 'never'.
		#
		#  LDAP_OPT_DEREF is set to this value.
#		dereference = 'always'

		#
		#  The following two configuration items control whether the
		#  server follows references returned by LDAP directory.
		#  They are  mostly for Active Directory compatibility.
		#  If you set these to "no", then searches will likely return
		#  "operations error", instead of a useful result.
		#
		chase_referrals = yes
		rebind = yes

		#  Seconds to wait for LDAP query to finish. default: 20
		timeout = 10

		#  Seconds LDAP server has to process the query (server-side
		#  time limit). default: 20
		#
		#  LDAP_OPT_TIMELIMIT is set to this value.
		timelimit = 3

		#  Seconds to wait for response of the server. (network
		#  failures) default: 10
		#
		#  LDAP_OPT_NETWORK_TIMEOUT is set to this value.
		net_timeout = 1

		#  LDAP_OPT_X_KEEPALIVE_IDLE
		idle = 60

		#  LDAP_OPT_X_KEEPALIVE_PROBES
		probes = 3

		#  LDAP_OPT_X_KEEPALIVE_INTERVAL
		interval = 3

		#  ldap_debug: debug flag for LDAP SDK
		#  (see OpenLDAP documentation).  Set this to enable
		#  huge amounts of LDAP debugging on the screen.
		#  You should only use this if you are an LDAP expert.
		#
		#	default: 0x0000 (no debugging messages)
		#	Example:(LDAP_DEBUG_FILTER+LDAP_DEBUG_CONNS)
		ldap_debug = 0x0028
	}

	#
	#  This subsection configures the tls related items
	#  that control how FreeRADIUS connects to an LDAP
	#  server.  It contains all of the "tls_*" configuration
	#  entries used in older versions of FreeRADIUS.  Those
	#  configuration entries can still be used, but we recommend
	#  using these.
	#
	tls {
		# Set this to 'yes' to use TLS encrypted connections
		# to the LDAP database by using the StartTLS extended
		# operation.
		#
		# The StartTLS operation is supposed to be
		# used with normal ldap connections instead of
		# using ldaps (port 636) connections
		start_tls = no

#		ca_file	= ${certdir}/cacert.pem

#		ca_path	= ${certdir}
#		certificate_file = /path/to/radius.crt
#		private_key_file = /path/to/radius.key
#		random_file = ${certdir}/random

		#  Certificate Verification requirements.  Can be:
		#    "never" (don't even bother trying)
		#    "allow" (try, but don't fail if the certificate
		#		can't be verified)
		#    "demand" (fail if the certificate doesn't verify.)
		#
		#  The default is "allow"
#		require_cert	= "demand"
	}


	#  As of version 3.0, the "pool" section has replaced the
	#  following configuration items:
	#
	#  ldap_connections_number

	#  The connection pool is new for 3.0, and will be used in many
	#  modules, for all kinds of connection-related activity.
	#
	#  When the server is not threaded, the connection pool
	#  limits are ignored, and only one connection is used.
	pool {
		#  Number of connections to start
		start = 5

		#  Minimum number of connections to keep open
		min = 4

		#  Maximum number of connections
		#
		#  If these connections are all in use and a new one
		#  is requested, the request will NOT get a connection.
		#
		#  Setting 'max' 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 'max' to MORE than the number of threads means
		#  that there are more connections than necessary.
		max = ${thread[pool].max_servers}

		#  Spare connections to be left idle
		#
		#  NOTE: Idle connections WILL be closed if "idle_timeout"
		#  is set.
		spare = 3

		#  Number of uses before the connection is closed
		#
		#  0 means "infinite"
		uses = 0

		#  The lifetime (in seconds) of the connection
		lifetime = 0

		#  Idle timeout (in seconds).  A connection which is
		#  unused for this length of time will be closed.
		idle_timeout = 60

		#  NOTE: All configuration settings are enforced.  If a
		#  connection is closed because of "idle_timeout",
		#  "uses", or "lifetime", then the total number of
		#  connections MAY fall below "min".  When that
		#  happens, it will open a new connection.  It will
		#  also log a WARNING message.
		#
		#  The solution is to either lower the "min" connections,
		#  or increase lifetime/idle_timeout.
	}
}