Using ldap module to return variables to use in other modules.

13 Aug 2014

      Hi all,

At the moment, I'm trying to get FreeRADIUS (Version 2.1.12 on CentOS 6.5, 64-bit) to do something a little oddball. I've got users in an Active Directory 2008 R2 domain, and I need to be able to authenticate them via RADIUS. However, it's complicated a little because I want to use UserPrincipalName. The longterm aim for this is a server doing EAP with inner and outer tunnels for Eduroam, hence the UPN. NTLMauth won't work with UPN natively - it usually just strips the realm off and uses the username portion. This won't work for me because the UPN and sAMAccountNames don't match (legacy reasons) and also will never match as we'll be using the full UPN matching the user's email address in future for other stuff, and having different UPNs to Emails will cause confusion as they'll be too similar.

I've been told it may be possible in the authorise section to query LDAP using the UPN, and return the sAMAccountName into a variable, then use that in the Authenticate section to actually auth the user via NTLMauth.

I've managed to modify the dictionary and ldap.attrs files, so when I run an authentication I see in the debug my variable get something put into it (and indeed, what I expect to see in it). However, when I feed this to the ntlm_auth module, it all falls over and says the variable doesn't exist, or can't be expanded.

I followed this howto for the ntlm_auth:
http://deployingradius.com/documents/configuration/active_directory.html

I modified the ntlm module as follows:
     exec ntlm_auth {
                    wait = yes
                    program = "/path/to/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{Bucks-samAccountName} --password=%{User-Password}"
            }

ldap.attrmap has an extra line (tried as both a check-item and a replyitem. I'm thinking it should be check-item as a replyitem is sent in the RADIUS reply, which I don't want).
checkItem  Bucks-samAccountName         sAMAccountName

And I modified the dictionary:
ATTRIBUTE    Bucks-samAccountName            3003   string

Does anybody know where I'm going wrong with this? Is it even possible? I've been playing with it for a while, and getting nowhere. Unforuntately the documentation hints at only certain variables being passed into modules, but doesn't elaborate on which ones, hence resorting to the mailing list.

My complete debug follows my sig, suitably sanitised.

Thanks in advance.

--

David Rickard

Systems Manager
IT - Core Systems Team
Buckinghamshire New University
High Wycombe Campus
Queen Alexandra Road
High Wycombe
Buckinghamshire HP11 2JZ

Telephone: 01494 601 649
Facsimile: 01494 524 392
Main Switchboard: 01494 522 141, ext. 1649

bucks.ac.uk

# radiusd -X
FreeRADIUS Version 2.1.12, for host x86_64-redhat-linux-gnu, built on Oct  3 2012 at 01:22:51
Copyright (C) 1999-2009 The FreeRADIUS server project and contributors.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License v2.
Starting - reading configuration files ...
including configuration file /etc/raddb/radiusd.conf
including configuration file /etc/raddb/proxy.conf
including configuration file /etc/raddb/clients.conf
including files in directory /etc/raddb/modules/
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/cui
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/dynamic_clients
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/ntlm_auth
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/replicate
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/redis
including configuration file /etc/raddb/modules/ldap
including configuration file /etc/raddb/modules/rediswho
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/opendirectory
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/modules/soh
including configuration file /etc/raddb/eap.conf
including configuration file /etc/raddb/policy.conf
including files in directory /etc/raddb/sites-enabled/
including configuration file /etc/raddb/sites-enabled/default
including configuration file /etc/raddb/sites-enabled/control-socket
including configuration file /etc/raddb/sites-enabled/inner-tunnel
main {
        user = "radiusd"
        group = "radiusd"
        allow_core_dumps = no
}
including dictionary file /etc/raddb/dictionary
main {
        name = "radiusd"
        prefix = "/usr"
        localstatedir = "/var"
        sbindir = "/usr/sbin"
        logdir = "/var/log/radius"
        run_dir = "/var/run/radiusd"
        libdir = "/usr/lib64/freeradius"
        radacctdir = "/var/log/radius/radacct"
        hostname_lookups = no
        max_request_time = 30
        cleanup_delay = 5
        max_requests = 1024
        pidfile = "/var/run/radiusd/radiusd.pid"
        checkrad = "/usr/sbin/checkrad"
        debug_level = 0
        proxy_requests = yes
 log {
        stripped_names = no
        auth = no
        auth_badpass = no
        auth_goodpass = no
 }
 security {
        max_attributes = 200
        reject_delay = 1
        status_server = yes
 }
}
radiusd: #### Loading Realms and Home Servers ####
 proxy server {
        retry_delay = 5
        retry_count = 3
        default_fallback = no
        dead_time = 120
        wake_all_if_all_dead = no
 }
 home_server localhost {
        ipaddr = 127.0.0.1
        port = 1812
        type = "auth"
        secret = "testing123"
        response_window = 20
        max_outstanding = 65536
        require_message_authenticator = yes
        zombie_period = 40
        status_check = "status-server"
        ping_interval = 30
        check_interval = 30
        num_answers_to_alive = 3
        num_pings_to_alive = 3
        revive_interval = 120
        status_check_timeout = 4
  coa {
        irt = 2
        mrt = 16
        mrc = 5
        mrd = 30
  }
 }
 home_server_pool my_auth_failover {
        type = fail-over
        home_server = localhost
 }
 realm example.com {
        auth_pool = my_auth_failover
 }
 realm LOCAL {
 }
radiusd: #### Loading Clients ####
 client myclientpc {
        ipaddr = x.x.x.x
        require_message_authenticator = no
        secret = "testing123"
        nastype = "other"
 }
 client localhost {
        ipaddr = 127.0.0.1
        require_message_authenticator = no
        secret = "testing123"
        nastype = "other"
 }
radiusd: #### Instantiating modules ####
 instantiate {
 Module: Linked to module rlm_exec
 Module: Instantiating module "exec" from file /etc/raddb/modules/exec
  exec {
        wait = no
        input_pairs = "request"
        shell_escape = yes
  }
 Module: Linked to module rlm_expr
 Module: Instantiating module "expr" from file /etc/raddb/modules/expr
 Module: Linked to module rlm_expiration
 Module: Instantiating module "expiration" from file /etc/raddb/modules/expiration
  expiration {
        reply-message = "Password Has Expired  "
  }
 Module: Linked to module rlm_logintime
 Module: Instantiating module "logintime" from file /etc/raddb/modules/logintime
  logintime {
        reply-message = "You are calling outside your allowed timespan  "
        minimum-timeout = 60
  }
 }
radiusd: #### Loading Virtual Servers ####
server { # from file /etc/raddb/radiusd.conf
 modules {
  Module: Creating Auth-Type = ntlm_auth
  Module: Creating Auth-Type = digest
  Module: Creating Post-Auth-Type = REJECT
 Module: Checking authenticate {...} for more modules to load
 Module: Instantiating module "ntlm_auth" from file /etc/raddb/modules/ntlm_auth
  exec ntlm_auth {
        wait = yes
        program = "/usr/bin/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{:Bucks-sAMAccountName} --password=%{User-Password}"
        input_pairs = "request"
        shell_escape = yes
  }
 Module: Linked to module rlm_pap
 Module: Instantiating module "pap" from file /etc/raddb/modules/pap
  pap {
        encryption_scheme = "auto"
        auto_header = no
  }
 Module: Linked to module rlm_chap
 Module: Instantiating module "chap" from file /etc/raddb/modules/chap
 Module: Linked to module rlm_mschap
 Module: Instantiating module "mschap" from file /etc/raddb/modules/mschap
  mschap {
        use_mppe = yes
        require_encryption = no
        require_strong = no
        with_ntdomain_hack = no
        ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username=%{mschap:Bucks-sAMAccountName:-None} --domain=%{%{mschap:NT-Domain}:-MYDOMAIN} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
        allow_retry = yes
  }
 Module: Linked to module rlm_digest
 Module: Instantiating module "digest" from file /etc/raddb/modules/digest
 Module: Linked to module rlm_unix
 Module: Instantiating module "unix" from file /etc/raddb/modules/unix
  unix {
        radwtmp = "/var/log/radius/radwtmp"
  }
 Module: Linked to module rlm_eap
 Module: Instantiating module "eap" from file /etc/raddb/eap.conf
  eap {
        default_eap_type = "md5"
        timer_expire = 60
        ignore_unknown_eap_types = no
        cisco_accounting_username_bug = no
        max_sessions = 4096
  }
 Module: Linked to sub-module rlm_eap_md5
 Module: Instantiating eap-md5
 Module: Linked to sub-module rlm_eap_leap
 Module: Instantiating eap-leap
 Module: Linked to sub-module rlm_eap_gtc
 Module: Instantiating eap-gtc
   gtc {
        challenge = "Password: "
        auth_type = "PAP"
   }
 Module: Linked to sub-module rlm_eap_tls
 Module: Instantiating eap-tls
   tls {
        rsa_key_exchange = no
        dh_key_exchange = yes
        rsa_key_length = 512
        dh_key_length = 512
        verify_depth = 0
        CA_path = "/etc/raddb/certs"
        pem_file_type = yes
        private_key_file = "/etc/raddb/certs/server.pem"
        certificate_file = "/etc/raddb/certs/server.pem"
        CA_file = "/etc/raddb/certs/ca.pem"
        private_key_password = "whatever"
        dh_file = "/etc/raddb/certs/dh"
        random_file = "/etc/raddb/certs/random"
        fragment_size = 1024
        include_length = yes
        check_crl = no
        cipher_list = "DEFAULT"
    cache {
        enable = no
        lifetime = 24
        max_entries = 255
    }
    verify {
    }
    ocsp {
        enable = no
        override_cert_url = yes
        url = "http://127.0.0.1/ocsp/"
    }
   }
 Module: Linked to sub-module rlm_eap_ttls
 Module: Instantiating eap-ttls
   ttls {
        default_eap_type = "md5"
        copy_request_to_tunnel = no
        use_tunneled_reply = no
        virtual_server = "inner-tunnel"
        include_length = yes
   }
 Module: Linked to sub-module rlm_eap_peap
 Module: Instantiating eap-peap
   peap {
        default_eap_type = "mschapv2"
        copy_request_to_tunnel = no
        use_tunneled_reply = no
        proxy_tunneled_request_as_eap = yes
        virtual_server = "inner-tunnel"
        soh = no
   }
 Module: Linked to sub-module rlm_eap_mschapv2
 Module: Instantiating eap-mschapv2
   mschapv2 {
        with_ntdomain_hack = no
        send_error = no
   }
 Module: Checking authorize {...} for more modules to load
 Module: Linked to module rlm_preprocess
 Module: Instantiating module "preprocess" from file /etc/raddb/modules/preprocess
  preprocess {
        huntgroups = "/etc/raddb/huntgroups"
        hints = "/etc/raddb/hints"
        with_ascend_hack = no
        ascend_channels_per_line = 23
        with_ntdomain_hack = no
        with_specialix_jetstream_hack = no
        with_cisco_vsa_hack = no
        with_alvarion_vsa_hack = no
  }
 Module: Linked to module rlm_ldap
 Module: Instantiating module "ldap" from file /etc/raddb/modules/ldap
  ldap {
        server = "adserver.domain"
        port = 389
        password = "somethingsomething"
        identity = "CN=LDAP User,CN=users,DC=mydomain,DC=tld"
        net_timeout = 1
        timeout = 4
        timelimit = 3
        tls_mode = no
        start_tls = no
        tls_require_cert = "allow"
   tls {
        start_tls = yes
        require_cert = "allow"
   }
        basedn = "OU=users,DC=mydomain,DC=tld"
        filter = "(userPrincipalName=%{%{Stripped-User-Name}:-%{User-Name}})"
        base_filter = "(objectclass=radiusprofile)"
        auto_header = no
        access_attr_used_for_allow = yes
        groupname_attribute = "cn"
        groupmembership_filter = "(|(&(objectClass=GroupOfNames)(member=%{Ldap-UserDn}))(&(objectClass=GroupOfUniqueNames)(uniquemember=%{Ldap-UserDn})))"
        dictionary_mapping = "/etc/raddb/ldap.attrmap"
        ldap_debug = 0
        ldap_connections_number = 5
        compare_check_items = no
        do_xlat = yes
        set_auth_type = no
   keepalive {
        idle = 60
        probes = 3
        interval = 3
   }
  }
rlm_ldap: Registering ldap_groupcmp for Ldap-Group
rlm_ldap: Registering ldap_xlat with xlat_name ldap
rlm_ldap: reading ldap<->radius mappings from file /etc/raddb/ldap.attrmap
rlm_ldap: LDAP sAMAccountName mapped to RADIUS Bucks-sAMAccountName
rlm_ldap: LDAP radiusCheckItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusReplyItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusAuthType mapped to RADIUS Auth-Type
rlm_ldap: LDAP radiusSimultaneousUse mapped to RADIUS Simultaneous-Use
rlm_ldap: LDAP radiusCalledStationId mapped to RADIUS Called-Station-Id
rlm_ldap: LDAP radiusCallingStationId mapped to RADIUS Calling-Station-Id
rlm_ldap: LDAP lmPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP ntPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP sambaLmPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP sambaNtPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP dBCSPwd mapped to RADIUS LM-Password
rlm_ldap: LDAP userPassword mapped to RADIUS Password-With-Header
rlm_ldap: LDAP acctFlags mapped to RADIUS SMB-Account-CTRL-TEXT
rlm_ldap: LDAP radiusExpiration mapped to RADIUS Expiration
rlm_ldap: LDAP radiusNASIpAddress mapped to RADIUS NAS-IP-Address
rlm_ldap: LDAP radiusServiceType mapped to RADIUS Service-Type
rlm_ldap: LDAP radiusFramedProtocol mapped to RADIUS Framed-Protocol
rlm_ldap: LDAP radiusFramedIPAddress mapped to RADIUS Framed-IP-Address
rlm_ldap: LDAP radiusFramedIPNetmask mapped to RADIUS Framed-IP-Netmask
rlm_ldap: LDAP radiusFramedRoute mapped to RADIUS Framed-Route
rlm_ldap: LDAP radiusFramedRouting mapped to RADIUS Framed-Routing
rlm_ldap: LDAP radiusFilterId mapped to RADIUS Filter-Id
rlm_ldap: LDAP radiusFramedMTU mapped to RADIUS Framed-MTU
rlm_ldap: LDAP radiusFramedCompression mapped to RADIUS Framed-Compression
rlm_ldap: LDAP radiusLoginIPHost mapped to RADIUS Login-IP-Host
rlm_ldap: LDAP radiusLoginService mapped to RADIUS Login-Service
rlm_ldap: LDAP radiusLoginTCPPort mapped to RADIUS Login-TCP-Port
rlm_ldap: LDAP radiusCallbackNumber mapped to RADIUS Callback-Number
rlm_ldap: LDAP radiusCallbackId mapped to RADIUS Callback-Id
rlm_ldap: LDAP radiusFramedIPXNetwork mapped to RADIUS Framed-IPX-Network
rlm_ldap: LDAP radiusClass mapped to RADIUS Class
rlm_ldap: LDAP radiusSessionTimeout mapped to RADIUS Session-Timeout
rlm_ldap: LDAP radiusIdleTimeout mapped to RADIUS Idle-Timeout
rlm_ldap: LDAP radiusTerminationAction mapped to RADIUS Termination-Action
rlm_ldap: LDAP radiusLoginLATService mapped to RADIUS Login-LAT-Service
rlm_ldap: LDAP radiusLoginLATNode mapped to RADIUS Login-LAT-Node
rlm_ldap: LDAP radiusLoginLATGroup mapped to RADIUS Login-LAT-Group
rlm_ldap: LDAP radiusFramedAppleTalkLink mapped to RADIUS Framed-AppleTalk-Link
rlm_ldap: LDAP radiusFramedAppleTalkNetwork mapped to RADIUS Framed-AppleTalk-Network
rlm_ldap: LDAP radiusFramedAppleTalkZone mapped to RADIUS Framed-AppleTalk-Zone
rlm_ldap: LDAP radiusPortLimit mapped to RADIUS Port-Limit
rlm_ldap: LDAP radiusLoginLATPort mapped to RADIUS Login-LAT-Port
rlm_ldap: LDAP radiusReplyMessage mapped to RADIUS Reply-Message
rlm_ldap: LDAP radiusTunnelType mapped to RADIUS Tunnel-Type
rlm_ldap: LDAP radiusTunnelMediumType mapped to RADIUS Tunnel-Medium-Type
rlm_ldap: LDAP radiusTunnelPrivateGroupId mapped to RADIUS Tunnel-Private-Group-Id
conns: 0x7f6307196780
 Module: Linked to module rlm_realm
 Module: Instantiating module "suffix" from file /etc/raddb/modules/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
 Module: Linked to module rlm_files
 Module: Instantiating module "files" from file /etc/raddb/modules/files
  files {
        usersfile = "/etc/raddb/users"
        acctusersfile = "/etc/raddb/acct_users"
        preproxy_usersfile = "/etc/raddb/preproxy_users"
        compat = "no"
  }
 Module: Checking preacct {...} for more modules to load
 Module: Linked to module rlm_acct_unique
 Module: Instantiating module "acct_unique" from file /etc/raddb/modules/acct_unique
  acct_unique {
        key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port"
  }
 Module: Checking accounting {...} for more modules to load
 Module: Linked to module rlm_detail
 Module: Instantiating module "detail" from file /etc/raddb/modules/detail
  detail {
        detailfile = "/var/log/radius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/detail-%Y%m%d"
        header = "%t"
        detailperm = 384
        dirperm = 493
        locking = no
        log_packet_header = no
  }
 Module: Linked to module rlm_radutmp
 Module: Instantiating module "radutmp" from file /etc/raddb/modules/radutmp
  radutmp {
        filename = "/var/log/radius/radutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        perm = 384
        callerid = yes
  }
 Module: Linked to module rlm_attr_filter
 Module: Instantiating module "attr_filter.accounting_response" from file /etc/raddb/modules/attr_filter
  attr_filter attr_filter.accounting_response {
        attrsfile = "/etc/raddb/attrs.accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
 Module: Checking session {...} for more modules to load
 Module: Checking post-proxy {...} for more modules to load
 Module: Checking post-auth {...} for more modules to load
 Module: Instantiating module "attr_filter.access_reject" from file /etc/raddb/modules/attr_filter
  attr_filter attr_filter.access_reject {
        attrsfile = "/etc/raddb/attrs.access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
 } # modules
} # server
server inner-tunnel { # from file /etc/raddb/sites-enabled/inner-tunnel
 modules {
 Module: Checking authenticate {...} for more modules to load
 Module: Checking authorize {...} for more modules to load
 Module: Checking session {...} for more modules to load
 Module: Checking post-proxy {...} for more modules to load
 Module: Checking post-auth {...} for more modules to load
 } # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
        type = "auth"
        ipaddr = *
        port = 0
}
listen {
        type = "acct"
        ipaddr = *
        port = 0
}
listen {
        type = "control"
 listen {
        socket = "/var/run/radiusd/radiusd.sock"
 }
}
listen {
        type = "auth"
        ipaddr = 127.0.0.1
        port = 18120
}
 ... adding new socket proxy address * port 51284
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on command file /var/run/radiusd/radiusd.sock
Listening on authentication address 127.0.0.1 port 18120 as server inner-tunnel
Listening on proxy address * port 1814
Ready to process requests.
rad_recv: Access-Request packet from host x.x.x.x port 57184, id=72, length=147
        User-Name = "test.account@bucks.ac.uk"
        NAS-IP-Address = 127.0.1.1
        NAS-Port = 0
        Message-Authenticator = 0x73b52b7e92735b3dc3aa9894f90b4f21
        MS-CHAP-Challenge = 0x9988e47a2058b555
        MS-CHAP-Response = 0x00010000000000000000000000000000000000000000000000004bacf42e37cb08d97a2790cd6acb3651e92e44ea3fcf86dc
# Executing section authorize from file /etc/raddb/sites-enabled/default
+- entering group authorize {...}
++[preprocess] returns ok
[ldap] performing user authorization for test.account@bucks.ac.uk
[ldap]  expand: %{Stripped-User-Name} ->
[ldap]  ... expanding second conditional
[ldap]  expand: %{User-Name} -> test.account@bucks.ac.uk
[ldap]  expand: (userPrincipalName=%{%{Stripped-User-Name}:-%{User-Name}}) -> (userPrincipalName=test.account@bucks.ac.uk)
[ldap]  expand: OU=users,DC=mydomain,DC=tld -> OU=users,DC=mydomain,DC=tld
  [ldap] ldap_get_conn: Checking Id: 0
  [ldap] ldap_get_conn: Got Id: 0
  [ldap] attempting LDAP reconnection
  [ldap] (re)connect to adserver.domain:389, authentication 0
  [ldap] starting TLS
  [ldap] bind as CN=LDAP User,CN=users,DC=mydomain,DC=tld/secretsecret to adserver.domain:389
  [ldap] waiting for bind result ...
  [ldap] Bind was successful
  [ldap] performing search in OU=users,DC=mydomain,DC=tld, with filter (userPrincipalName=test.account@bucks.ac.uk)
[ldap] looking for check items in directory...
  [ldap] sAMAccountName -> Bucks-sAMAccountName == "taccount"
[ldap] looking for reply items in directory...
WARNING: No "known good" password was found in LDAP.  Are you sure that the user is configured correctly?
[ldap] user test.account@bucks.ac.uk authorized to use remote access
  [ldap] ldap_release_conn: Release Id: 0
++[ldap] returns ok
++[chap] returns noop
[mschap] Found MS-CHAP attributes.  Setting 'Auth-Type  = mschap'
++[mschap] returns ok
++[digest] returns noop
[suffix] Looking up realm "bucks.ac.uk" for User-Name = "test.account@bucks.ac.uk"
[suffix] No such realm "bucks.ac.uk"
++[suffix] returns noop
[eap] No EAP-Message, not doing EAP
++[eap] returns noop
++[files] returns noop
++[expiration] returns noop
++[logintime] returns noop
[pap] WARNING! No "known good" password found for the user.  Authentication may fail because of this.
++[pap] returns noop
Found Auth-Type = MSCHAP
# Executing group from file /etc/raddb/sites-enabled/default
+- entering group MS-CHAP {...}
[mschap] Told to do MS-CHAPv1 with NT-Password
[mschap] Unknown expansion string "Bucks-sAMAccountName:-None"
[mschap]        expand: --username=%{mschap:Bucks-sAMAccountName:-None} -> --username=
[mschap] No NT-Domain was found in the User-Name.
[mschap]        expand: %{mschap:NT-Domain} ->
[mschap]        ... expanding second conditional
[mschap]        expand: --domain=%{%{mschap:NT-Domain}:-MYDOMAIN} -> --domain=MYDOMAIN
[mschap]  mschap1: 99
[mschap]        expand: --challenge=%{mschap:Challenge:-00} -> --challenge=9988e47a2058b555
[mschap]        expand: --nt-response=%{mschap:NT-Response:-00} -> --nt-response=4bacf42e37cb08d97a2790cd6acb3651e92e44ea3fcf86dc
username must be specified!

Usage: [OPTION...]
  --helper-protocol=helper protocol to use     operate as a stdio-based helper
  --username=STRING                            username
  --domain=STRING                              domain name
  --workstation=STRING                         workstation
  --challenge=STRING                           challenge (HEX encoded)
  --lm-response=STRING                         LM Response to the challenge (HEX encoded)
  --nt-response=STRING                         NT or NTLMv2 Response to the challenge (HEX encoded)
  --password=STRING                            User's plaintext password
  --request-lm-key                             Retrieve LM session key
  --request-nt-key                             Retrieve User (NT) session key
  --use-cached-creds                           Use cached credentials if no password is given
  --diagnostics                                Perform diagnostics on the authentication chain
  --require-membership-of=STRING               Require that a user be a member of this group (either name or SID) for authentication to succeed
  --pam-winbind-conf=STRING                    Require that request must set WBFLAG_PAM_CONTACT_TRUSTDOM when krb5 auth is required

Help options:
  -?, --help                                   Show this help message
  --usage                                      Display brief usage message

Common samba config:
  --configfile=CONFIGFILE                      Use alternate configuration file

Common samba options:
  -V, --version                                Print version
Exec-Program output:
Exec-Program: returned: 1
[mschap] External script failed.
[mschap] MS-CHAP-Response is incorrect.
++[mschap] returns reject
Failed to authenticate the user.
Using Post-Auth-Type Reject
# Executing group from file /etc/raddb/sites-enabled/default
+- entering group REJECT {...}
[attr_filter.access_reject]     expand: %{User-Name} -> test.account@bucks.ac.uk
attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 0 for 1 seconds
Going to the next request
Waking up in 0.9 seconds.
Sending delayed reject for request 0
Sending Access-Reject of id 72 to x.x.x.x port 57184
        MS-CHAP-Error = "\000E=691 R=1"
Waking up in 4.9 seconds.
Cleaning up request 0 ID 72 with timestamp +34
Ready to process requests.

--

David Rickard

Systems Manager
IT - Core Systems Team
Buckinghamshire New University
High Wycombe Campus
Queen Alexandra Road
High Wycombe
Buckinghamshire HP11 2JZ

Telephone: 01494 601 649
Facsimile: 01494 524 392
Main Switchboard: 01494 522 141, ext. 1649

bucks.ac.uk