Produits Entr'ouvert » U-Auth

client local {

       shortname = "Dynamic client"

       ipaddr = 192.168.5.224

       netmask = 32

       lifetime = 3600

       secret = mystrongsecret

}

#  Authorization. First preprocess (hints and huntgroups files),

#  then realms, and finally look in the "users" file.

#

#  Any changes made here should also be made to the "inner-tunnel"

#  virtual server.

#

#  The order of the realm modules will determine the order that

#  we try to find a matching realm.

#

#  Make *sure* that 'preprocess' comes before any realm if you 

#  need to setup hints for the remote radius server

authorize {

	#

	#  Security settings.  Take a User-Name, and do some simple

	#  checks on it, for spaces and other invalid characters.  If

	#  it looks like the user is trying to play games, reject it.

	#

	#  This should probably be enabled by default.

	#

	#  See policy.conf for the definition of the filter_username policy.

	#

#	filter_username

	#

	#  The preprocess module takes care of sanitizing some bizarre

	#  attributes in the request, and turning them into attributes

	#  which are more standard.

	#

	#  It takes care of processing the 'raddb/hints' and the

	#  'raddb/huntgroups' files.

	preprocess

	#

	#  If you want to have a log of authentication requests,

	#  un-comment the following line, and the 'detail auth_log'

	#  section, above.

	auth_log

	ldap

	#

	#  The chap module will set 'Auth-Type := CHAP' if we are

	#  handling a CHAP request and Auth-Type has not already been set

	chap

	#

	#  If the users are logging in with an MS-CHAP-Challenge

	#  attribute for authentication, the mschap module will find

	#  the MS-CHAP-Challenge attribute, and add 'Auth-Type := MS-CHAP'

	#  to the request, which will cause the server to then use

	#  the mschap module for authentication.

	mschap

	#

	#  If you have a Cisco SIP server authenticating against

	#  FreeRADIUS, uncomment the following line, and the 'digest'

	#  line in the 'authenticate' section.

	digest

	#

	#  The WiMAX specification says that the Calling-Station-Id

	#  is 6 octets of the MAC.  This definition conflicts with

	#  RFC 3580, and all common RADIUS practices.  Un-commenting

	#  the "wimax" module here means that it will fix the

	#  Calling-Station-Id attribute to the normal format as

	#  specified in RFC 3580 Section 3.21

#	wimax

	#

	#  Look for IPASS style 'realm/', and if not found, look for

	#  '@realm', and decide whether or not to proxy, based on

	#  that.

#	IPASS

	#

	#  If you are using multiple kinds of realms, you probably

	#  want to set "ignore_null = yes" for all of them.

	#  Otherwise, when the first style of realm doesn't match,

	#  the other styles won't be checked.

	#

	suffix

#	ntdomain

	#

	#  This module takes care of EAP-MD5, EAP-TLS, and EAP-LEAP

	#  authentication.

	#

	#  It also sets the EAP-Type attribute in the request

	#  attribute list to the EAP type from the packet.

	#

	#  As of 2.0, the EAP module returns "ok" in the authorize stage

	#  for TTLS and PEAP.  In 1.x, it never returned "ok" here, so

	#  this change is compatible with older configurations.

	#

	#  The example below uses module failover to avoid querying all

	#  of the following modules if the EAP module returns "ok".

	#  Therefore, your LDAP and/or SQL servers will not be queried

	#  for the many packets that go back and forth to set up TTLS

	#  or PEAP.  The load on those servers will therefore be reduced.

	#

	eap {

		ok = return

	}

	#

	#  Pull crypt'd passwords from /etc/passwd or /etc/shadow,

	#  using the system API's to get the password.  If you want

	#  to read /etc/passwd or /etc/shadow directly, see the

	#  passwd module in radiusd.conf.

	#

#	unix

	#

	#  Read the 'users' file

#	files

	#

	#  Look in an SQL database.  The schema of the database

	#  is meant to mirror the "users" file.

	#

	#  See "Authorization Queries" in sql.conf

#	sql

	#

	#  If you are using /etc/smbpasswd, and are also doing

	#  mschap authentication, the un-comment this line, and

	#  configure the 'smbpasswd' module.

#	smbpasswd

        exec

	#

	#  The ldap module will set Auth-Type to LDAP if it has not

	#  already been set

	#

	#  Enforce daily limits on time spent logged in.

#	daily

	#

	# Use the checkval module

#	checkval

	expiration

	logintime

	#

	#  If no other module has claimed responsibility for

	#  authentication, then try to use PAP.  This allows the

	#  other modules listed above to add a "known good" password

	#  to the request, and to do nothing else.  The PAP module

	#  will then see that password, and use it to do PAP

	#  authentication.

	#

	#  This module should be listed last, so that the other modules

	#  get a chance to set Auth-Type for themselves.

	#

	pap

	#

	#  If "status_server = yes", then Status-Server messages are passed

	#  through the following section, and ONLY the following section.

	#  This permits you to do DB queries, for example.  If the modules

	#  listed here return "fail", then NO response is sent.

	#

#	Autz-Type Status-Server {

#

#	}

}

#  Authentication.

#

#

#  This section lists which modules are available for authentication.

#  Note that it does NOT mean 'try each module in order'.  It means

#  that a module from the 'authorize' section adds a configuration

#  attribute 'Auth-Type := FOO'.  That authentication type is then

#  used to pick the apropriate module from the list below.

#

#  In general, you SHOULD NOT set the Auth-Type attribute.  The server

#  will figure it out on its own, and will do the right thing.  The

#  most common side effect of erroneously setting the Auth-Type

#  attribute is that one authentication method will work, but the

#  others will not.

#

#  The common reasons to set the Auth-Type attribute by hand

#  is to either forcibly reject the user (Auth-Type := Reject),

#  or to or forcibly accept the user (Auth-Type := Accept).

#

#  Note that Auth-Type := Accept will NOT work with EAP.

#

#  Please do not put "unlang" configurations into the "authenticate"

#  section.  Put them in the "post-auth" section instead.  That's what

#  the post-auth section is for.

#

authenticate {

	#

	#  PAP authentication, when a back-end database listed

	#  in the 'authorize' section supplies a password.  The

	#  password can be clear-text, or encrypted.

	Auth-Type PAP {

		pap

	}

	#

	#  Most people want CHAP authentication

	#  A back-end database listed in the 'authorize' section

	#  MUST supply a CLEAR TEXT password.  Encrypted passwords

	#  won't work.

	Auth-Type CHAP {

		chap

	}

	#

	#  MSCHAP authentication.

	Auth-Type MS-CHAP {

		mschap

	}

	#

	#  If you have a Cisco SIP server authenticating against

	#  FreeRADIUS, uncomment the following line, and the 'digest'

	#  line in the 'authorize' section.

	digest

	#

	#  Pluggable Authentication Modules.

#	pam

	#

	#  See 'man getpwent' for information on how the 'unix'

	#  module checks the users password.  Note that packets

	#  containing CHAP-Password attributes CANNOT be authenticated

	#  against /etc/passwd!  See the FAQ for details.

	#

	#  For normal "crypt" authentication, the "pap" module should

	#  be used instead of the "unix" module.  The "unix" module should

	#  be used for authentication ONLY for compatibility with legacy

	#  FreeRADIUS configurations.

	#

	unix

	# Uncomment it if you want to use ldap for authentication

	#

	# Note that this means "check plain-text password against

	# the ldap database", which means that EAP won't work,

	# as it does not supply a plain-text password.

	Auth-Type LDAP {

		ldap

	}

	#

	#  Allow EAP authentication.

	eap

	#

	#  The older configurations sent a number of attributes in

	#  Access-Challenge packets, which wasn't strictly correct.

	#  If you want to filter out these attributes, uncomment

	#  the following lines.

	#

#	Auth-Type eap {

#		eap {

#			handled = 1  

#		}

#		if (handled && (Response-Packet-Type == Access-Challenge)) {

#			attr_filter.access_challenge.post-auth

#			handled  # override the "updated" code from attr_filter

#		}

#	}

}

#

#  Pre-accounting.  Decide which accounting type to use.

#

preacct {

	preprocess

	#

	#  Session start times are *implied* in RADIUS.

	#  The NAS never sends a "start time".  Instead, it sends

	#  a start packet, *possibly* with an Acct-Delay-Time.

	#  The server is supposed to conclude that the start time

	#  was "Acct-Delay-Time" seconds in the past.

	#

	#  The code below creates an explicit start time, which can

	#  then be used in other modules.

	#

	#  The start time is: NOW - delay - session_length

	#

#	  update request {

#	  	FreeRADIUS-Acct-Session-Start-Time = "%{expr: %l - %{%{Acct-Session-Time}:-0} - %{%{Acct-Delay-Time}:-0}}"

#	}

	#

	#  Ensure that we have a semi-unique identifier for every

	#  request, and many NAS boxes are broken.

	acct_unique

	#

	#  Look for IPASS-style 'realm/', and if not found, look for

	#  '@realm', and decide whether or not to proxy, based on

	#  that.

	#

	#  Accounting requests are generally proxied to the same

	#  home server as authentication requests.

#	IPASS

	suffix

#	ntdomain

	#

	#  Read the 'acct_users' file

	files

}

#

#  Accounting.  Log the accounting data.

#

accounting {

	#

	#  Create a 'detail'ed log of the packets.

	#  Note that accounting requests which are proxied

	#  are also logged in the detail file.

	detail

#	daily

	#  Update the wtmp file

	#

	#  If you don't use "radlast", you can delete this line.

#	unix

	#

	#  For Simultaneous-Use tracking.

	#

	#  Due to packet losses in the network, the data here

	#  may be incorrect.  There is little we can do about it.

#	radutmp

#	sradutmp

	#  Return an address to the IP Pool when we see a stop record.

#	main_pool

	#

	#  Log traffic to an SQL database.

	#

	#  See "Accounting queries" in sql.conf

#	sql

	#

	#  If you receive stop packets with zero session length,

	#  they will NOT be logged in the database.  The SQL module

	#  will print a message (only in debugging mode), and will

	#  return "noop".

	#

	#  You can ignore these packets by uncommenting the following

	#  three lines.  Otherwise, the server will not respond to the

	#  accounting request, and the NAS will retransmit.

	#

#	if (noop) {

#		ok

#	}

	#

	#  Instead of sending the query to the SQL server,

	#  write it into a log file.

	#

#	sql_log

	#  Cisco VoIP specific bulk accounting

#	pgsql-voip

	# For Exec-Program and Exec-Program-Wait

	exec

	#  Filter attributes from the accounting response.

	attr_filter.accounting_response

	#

	#  See "Autz-Type Status-Server" for how this works.

	#

#	Acct-Type Status-Server {

#

#	}

}

#  Session database, used for checking Simultaneous-Use. Either the radutmp 

#  or rlm_sql module can handle this.

#  The rlm_sql module is *much* faster

session {

	radutmp

	#

	#  See "Simultaneous Use Checking Queries" in sql.conf

#	sql

}

#  Post-Authentication

#  Once we KNOW that the user has been authenticated, there are

#  additional steps we can take.

post-auth {

	#  Get an address from the IP Pool.

#	main_pool

	#

	#  If you want to have a log of authentication replies,

	#  un-comment the following line, and the 'detail reply_log'

	#  section, above.

#	reply_log

	#

	#  After authenticating the user, do another SQL query.

	#

	#  See "Authentication Logging Queries" in sql.conf

#	sql

	#

	#  Instead of sending the query to the SQL server,

	#  write it into a log file.

	#

#	sql_log

	#

	#  Un-comment the following if you have set

	#  'edir_account_policy_check = yes' in the ldap module sub-section of

	#  the 'modules' section.

	#

#	ldap

	# For Exec-Program and Exec-Program-Wait

	exec

	#

	#  Calculate the various WiMAX keys.  In order for this to work,

	#  you will need to define the WiMAX NAI, usually via

	#

	#	update request {

	#	       WiMAX-MN-NAI = "%{User-Name}"

	#	}

	#

	#  If you want various keys to be calculated, you will need to

	#  update the reply with "template" values.  The module will see

	#  this, and replace the template values with the correct ones

	#  taken from the cryptographic calculations.  e.g.

	#

	# 	update reply {

	#		WiMAX-FA-RK-Key = 0x00

	#		WiMAX-MSK = "%{EAP-MSK}"

	#	}

	#

	#  You may want to delete the MS-MPPE-*-Keys from the reply,

	#  as some WiMAX clients behave badly when those attributes

	#  are included.  See "raddb/modules/wimax", configuration

	#  entry "delete_mppe_keys" for more information.

	#

#	wimax

	#  If there is a client certificate (EAP-TLS, sometimes PEAP

	#  and TTLS), then some attributes are filled out after the

	#  certificate verification has been performed.  These fields

	#  MAY be available during the authentication, or they may be

	#  available only in the "post-auth" section.

	#

	#  The first set of attributes contains information about the

	#  issuing certificate which is being used.  The second

	#  contains information about the client certificate (if

	#  available).

#

#	update reply {

#	       Reply-Message += "%{TLS-Cert-Serial}"

#	       Reply-Message += "%{TLS-Cert-Expiration}"

#	       Reply-Message += "%{TLS-Cert-Subject}"

#	       Reply-Message += "%{TLS-Cert-Issuer}"

#	       Reply-Message += "%{TLS-Cert-Common-Name}"

#	       Reply-Message += "%{TLS-Cert-Subject-Alt-Name-Email}"

#

#	       Reply-Message += "%{TLS-Client-Cert-Serial}"

#	       Reply-Message += "%{TLS-Client-Cert-Expiration}"

#	       Reply-Message += "%{TLS-Client-Cert-Subject}"

#	       Reply-Message += "%{TLS-Client-Cert-Issuer}"

#	       Reply-Message += "%{TLS-Client-Cert-Common-Name}"

#	       Reply-Message += "%{TLS-Client-Cert-Subject-Alt-Name-Email}"

#	}

	#  MacSEC requires the use of EAP-Key-Name.  However, we don't

	#  want to send it for all EAP sessions.  Therefore, the EAP

	#  modules put required data into the EAP-Session-Id attribute.

	#  This attribute is never put into a request or reply packet.

	#

	#  Uncomment the next few lines to copy the required data into

	#  the EAP-Key-Name attribute

#	if (reply:EAP-Session-Id) {

#		update reply {

#			EAP-Key-Name := "%{reply:EAP-Session-Id}"

#		}

#	}

	#  If the WiMAX module did it's work, you may want to do more

	#  things here, like delete the MS-MPPE-*-Key attributes.

	#

	#	if (updated) {

	#		update reply {

	#			MS-MPPE-Recv-Key !* 0x00

	#			MS-MPPE-Send-Key !* 0x00

	#		}

	#	}

	#

	#  Access-Reject packets are sent through the REJECT sub-section of the

	#  post-auth section.

	#

	#  Add the ldap module name (or instance) if you have set 

	#  'edir_account_policy_check = yes' in the ldap module configuration

	#

	Post-Auth-Type REJECT {

		# log failed authentications in SQL, too.

#		sql

		attr_filter.access_reject

	}

}

#

#  When the server decides to proxy a request to a home server,

#  the proxied request is first passed through the pre-proxy

#  stage.  This stage can re-write the request, or decide to

#  cancel the proxy.

#

#  Only a few modules currently have this method.

#

pre-proxy {

#	attr_rewrite

	#  Uncomment the following line if you want to change attributes

	#  as defined in the preproxy_users file.

#	files

	#  Uncomment the following line if you want to filter requests

	#  sent to remote servers based on the rules defined in the

	#  'attrs.pre-proxy' file.

#	attr_filter.pre-proxy

	#  If you want to have a log of packets proxied to a home

	#  server, un-comment the following line, and the

	#  'detail pre_proxy_log' section, above.

#	pre_proxy_log

}

#

#  When the server receives a reply to a request it proxied

#  to a home server, the request may be massaged here, in the

#  post-proxy stage.

#

post-proxy {

	#  If you want to have a log of replies from a home server,

	#  un-comment the following line, and the 'detail post_proxy_log'

	#  section, above.

#	post_proxy_log

#	attr_rewrite

	#  Uncomment the following line if you want to filter replies from

	#  remote proxies based on the rules defined in the 'attrs' file.

#	attr_filter.post-proxy

	#

	#  If you are proxying LEAP, you MUST configure the EAP

	#  module, and you MUST list it here, in the post-proxy

	#  stage.

	#

	#  You MUST also use the 'nostrip' option in the 'realm'

	#  configuration.  Otherwise, the User-Name attribute

	#  in the proxied request will not match the user name

	#  hidden inside of the EAP packet, and the end server will

	#  reject the EAP request.

	#

	eap

	#

	#  If the server tries to proxy a request and fails, then the

	#  request is processed through the modules in this section.

	#

	#  The main use of this section is to permit robust proxying

	#  of accounting packets.  The server can be configured to

	#  proxy accounting packets as part of normal processing.

	#  Then, if the home server goes down, accounting packets can

	#  be logged to a local "detail" file, for processing with

	#  radrelay.  When the home server comes back up, radrelay

	#  will read the detail file, and send the packets to the

	#  home server.

	#

	#  With this configuration, the server always responds to

	#  Accounting-Requests from the NAS, but only writes

	#  accounting packets to disk if the home server is down.

	#

#	Post-Proxy-Type Fail {

#			detail

#	}

}