use filter_username inside of the tunnel, too

[freeradius.git] / raddb / sites-available / inner-tunnel

# -*- text -*-
######################################################################
#
#       This is a virtual server that handles *only* inner tunnel
#       requests for EAP-TTLS and PEAP types.
#
#       $Id$
#
######################################################################

server inner-tunnel {

#
#  This next section is here to allow testing of the "inner-tunnel"
#  authentication methods, independently from the "default" server.
#  It is listening on "localhost", so that it can only be used from
#  the same machine.
#
#       $ radtest USER PASSWORD 127.0.0.1:18120 0 testing123
#
#  If it works, you have configured the inner tunnel correctly.  To check
#  if PEAP will work, use:
#
#       $ radtest -t mschap USER PASSWORD 127.0.0.1:18120 0 testing123
#
#  If that works, PEAP should work.  If that command doesn't work, then
#
#       FIX THE INNER TUNNEL CONFIGURATION SO THAT IT WORKS.
#
#  Do NOT do any PEAP tests.  It won't help.  Instead, concentrate
#  on fixing the inner tunnel configuration.  DO NOTHING ELSE.
#
listen {
       ipaddr = 127.0.0.1
       port = 18120
       type = auth
}


#  Authorization. First preprocess (hints and huntgroups files),
#  then realms, and finally look in the "users" file.
#
#  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 {
        #
        #  Take a User-Name, and perform some checks on it, for spaces and other
        #  invalid characters.  If the User-Name appears invalid, reject the
        #  request.
        #
        #  See policy.d/filter for the definition of the filter_username policy.
        #
        filter_username

        #
        #  Do checks on outer / inner User-Name, so that users
        #  can't spoof us by using incompatible identities
        #
        filter_inner_identity

        #
        #  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

        #
        #  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, above.
        #
#       unix

        #
        #  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.
        #
        #  Note that proxying the inner tunnel authentication means
        #  that the user MAY use one identity in the outer session
        #  (e.g. "anonymous", and a different one here
        #  (e.g. "user@example.com").  The inner session will then be
        #  proxied elsewhere for authentication.  If you are not
        #  careful, this means that the user can cause you to forward
        #  the authentication to another RADIUS server, and have the
        #  accounting logs *not* sent to the other server.  This makes
        #  it difficult to bill people for their network activity.
        #
        suffix
#       ntdomain

        #
        #  The "suffix" module takes care of stripping the domain
        #  (e.g. "@example.com") from the User-Name attribute, and the
        #  next few lines ensure that the request is not proxied.
        #
        #  If you want the inner tunnel request to be proxied, delete
        #  the next few lines.
        #
        update control {
                &Proxy-To-Realm := LOCAL
        }

        #
        #  This module takes care of EAP-MSCHAPv2 authentication.
        #
        #  It also sets the EAP-Type attribute in the request
        #  attribute list to the EAP type from the packet.
        #
        #  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
        }

        #
        #  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
        #  enable the "smbpasswd" module.
#       smbpasswd

        #
        #  The ldap module reads passwords from the LDAP database.
        -ldap

        #
        #  Enforce daily limits on time spent logged in.
#       daily

        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
}


#  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 appropriate 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, or forcibly accept him.
#
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
        }

        #
        #  Pluggable Authentication Modules.
#       pam

        # 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.
        #
        #  We do NOT recommend using this.  LDAP servers are databases.
        #  They are NOT authentication servers.  FreeRADIUS is an
        #  authentication server, and knows what to do with authentication.
        #  LDAP servers do not.
        #
#       Auth-Type LDAP {
#               ldap
#       }

        #
        #  Allow EAP authentication.
        eap
}

######################################################################
#
#       There are no accounting requests inside of EAP-TTLS or PEAP
#       tunnels.
#
######################################################################


#  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.
#
#  Note that the last packet of the inner-tunnel authentication
#  MAY NOT BE the last packet of the outer session.  So updating
#  the outer reply MIGHT work, and sometimes MIGHT NOT.  The
#  exact functionality depends on both the inner and outer
#  authentication methods.
#
#  If you need to send a reply attribute in the outer session,
#  the ONLY safe way is to set "use_tunneled_reply = yes", and
#  then update the inner-tunnel reply.
post-auth {
        #  If you want privacy to remain, see the
        #  Chargeable-User-Identity attribute from RFC 4372.
        #  If you want to use it just uncomment the line below.
#       cui-inner

        #
        #  If you want to have a log of authentication replies,
        #  un-comment the following line, and enable the
        #  'detail reply_log' module.
#       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


        #
        #  Instead of "use_tunneled_reply", uncomment the
        #  next two "update" blocks.
        #
#       update {
#               &outer.session-state: += &reply:
#       }

        #
        #  These attributes are for the inner session only.
        #  They MUST NOT be sent in the outer reply.
        #
        #  If you uncomment the previous block and leave
        #  this one commented out, WiFi WILL NOT WORK,
        #  because the client will get two MS-MPPE-keys
        #
#       update outer.session-state {
#               MS-MPPE-Encryption-Policy !* ANY
#               MS-MPPE-Encryption-Types !* ANY
#               MS-MPPE-Send-Key !* ANY
#               MS-MPPE-Recv-Key !* ANY
#               Message-Authenticator !* ANY
#               EAP-Message !* ANY
#               Proxy-State !* ANY
#       }

        #
        #  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

                #
                #  Let the outer session know which module failed, and why.
                #
                update outer.session-state {
                        &Module-Failure-Message := &request:Module-Failure-Message
                }
        }
}

#
#  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 {
        #  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

        #  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
}

} # inner-tunnel server block