Re : Re : Active Directory Integration

1 Jul 2008

      Thanks Alan for your answer
I follow your documentation and succeed with the part "Configuring FreeRADIUS to use ntlm_auth"

So I want to use "Configuring FreeRADIUS to use ntlm_auth for MS-CHAP", so I delete my user in database.
Do I have to keep the following line in my radiusd.conf ?

exec ntlm_auth {
                wait = no
                program = "/path/to/ntlm_auth ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
        }

authenticate {
        ...
        ntlm_auth
        ...
} 

Here is my radiusd.conf

prefix = /usr
exec_prefix = /usr
sysconfdir = /etc
localstatedir = /var
sbindir = /usr/sbin
logdir = ${localstatedir}/log/radius
raddbdir = ${sysconfdir}/raddb
radacctdir = ${logdir}/radacct
confdir = ${raddbdir}
run_dir = ${localstatedir}/run/radiusd
log_file = ${logdir}/radius.log
libdir = /usr/lib
pidfile = ${run_dir}/radiusd.pid
user = radiusd
group = radiusd
max_request_time = 30
delete_blocked_requests = no
cleanup_delay = 5
max_requests = 1024
bind_address = *
port = 0
hostname_lookups = no
allow_core_dumps = no
regular_expressions     = yes
extended_expressions    = yes
log_stripped_names = no
log_auth = no
log_auth_badpass = no
log_auth_goodpass = no
usercollide = no
lower_user = no
lower_pass = no
nospace_user = no
nospace_pass = no
checkrad = ${sbindir}/checkrad
security {
        max_attributes = 200
        reject_delay = 1
        status_server = no
}
proxy_requests  = yes
$INCLUDE  ${confdir}/proxy.conf
$INCLUDE  ${confdir}/clients.conf
snmp    = no
$INCLUDE  ${confdir}/snmp.conf
thread pool {
        start_servers = 5
        max_servers = 32
        min_spare_servers = 3
        max_spare_servers = 10
        max_requests_per_server = 0
}
modules {
        pap {
                encryption_scheme = crypt
        }
        chap {
                authtype = CHAP
        }
        pam {
                pam_auth = radiusd
        }
        unix {
                cache = no
                cache_reload = 600
                shadow = /etc/shadow
                radwtmp = ${logdir}/radwtmp
        }
$INCLUDE ${confdir}/eap.conf
        mschap {
                ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --username=%{mschap:User-Name:-None} --domain=%{mschap:NT-Domain:-MYDOMAIN} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
        }
        ldap {
                server = "ldap.your.domain"
                basedn = "o=My Org,c=UA"
                filter = "(uid=%{Stripped-User-Name:-%{User-Name}})"
                start_tls = no
                access_attr = "dialupAccess"
                dictionary_mapping = ${raddbdir}/ldap.attrmap
                ldap_connections_number = 5
                timeout = 4
                timelimit = 3
                net_timeout = 1
        }
        realm IPASS {
                format = prefix
                delimiter = "/"
                ignore_default = no
                ignore_null = no
        }
        realm suffix {
                format = suffix
                delimiter = "@"
                ignore_default = no
                ignore_null = no
        }
        realm realmpercent {
                format = suffix
                delimiter = "%"
                ignore_default = no
                ignore_null = no
        }
        realm ntdomain {
                format = prefix
                delimiter = "\\"
                ignore_default = no
                ignore_null = no
        }
        checkval {
                item-name = Calling-Station-Id
                check-name = Calling-Station-Id
                data-type = string
        }

        preprocess {
                huntgroups = ${confdir}/huntgroups
                hints = ${confdir}/hints
                with_ascend_hack = no
                ascend_channels_per_line = 23
                with_ntdomain_hack = no
                with_specialix_jetstream_hack = no
                with_cisco_vsa_hack = no
        }
        files {
                usersfile = ${confdir}/users
                acctusersfile = ${confdir}/acct_users
                preproxy_usersfile = ${confdir}/preproxy_users
                compat = no
        }
        detail {
                detailfile = ${radacctdir}/%{Client-IP-Address}/detail-%Y%m%d
                detailperm = 0600
        }
        acct_unique {
                key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port"
        }
        $INCLUDE  ${confdir}/sql.conf

        radutmp {
                filename = ${logdir}/radutmp
                username = %{User-Name}
                case_sensitive = yes
                check_with_nas = yes
                perm = 0600
                callerid = "yes"
        }
        radutmp sradutmp {
                filename = ${logdir}/sradutmp
                perm = 0644
                callerid = "no"
        }
        attr_filter {
                attrsfile = ${confdir}/attrs
        }
        counter daily {
                filename = ${raddbdir}/db.daily
                key = User-Name
                count-attribute = Acct-Session-Time
                reset = daily
                counter-name = Daily-Session-Time
                check-name = Max-Daily-Session
                allowed-servicetype = Framed-User
                cache-size = 5000
        }
        sqlcounter dailycounter {
                counter-name = Daily-Session-Time
                check-name = Max-Daily-Session
                sqlmod-inst = sql
                key = User-Name
                reset = daily
                query = "SELECT SUM(AcctSessionTime - \
                 GREATEST((%b - UNIX_TIMESTAMP(AcctStartTime)), 0)) \
                 FROM radacct WHERE UserName='%{%k}' AND \
                 UNIX_TIMESTAMP(AcctStartTime) + AcctSessionTime > '%b'"
        }
        sqlcounter monthlycounter {
                counter-name = Monthly-Session-Time
                check-name = Max-Monthly-Session
                sqlmod-inst = sql
                key = User-Name
                reset = monthly
                query = "SELECT SUM(AcctSessionTime - \
                 GREATEST((%b - UNIX_TIMESTAMP(AcctStartTime)), 0)) \
                 FROM radacct WHERE UserName='%{%k}' AND \
                 UNIX_TIMESTAMP(AcctStartTime) + AcctSessionTime > '%b'"
        }
        always fail {
                rcode = fail
        }
        always reject {
                rcode = reject
        }
        always ok {
                rcode = ok
                simulcount = 0
                mpp = no
        }
        expr {
        }
        digest {
        }
        exec {
                wait = yes
                input_pairs = request
        }
        exec echo {
                wait = yes
                program = "/bin/echo %{User-Name}"
                input_pairs = request
                output_pairs = reply
        }
        ippool main_pool {
                range-start = 192.168.1.1
                range-stop = 192.168.3.254
                netmask = 255.255.255.0
                cache-size = 800
                session-db = ${raddbdir}/db.ippool
                ip-index = ${raddbdir}/db.ipindex
                override = no
                maximum-timeout = 0
        }
}
instantiate {
        exec
        expr
}
authorize {
        preprocess

        chap
        mschap
        suffix
        eap
        sql
}
authenticate {
        Auth-Type PAP {
                pap
        }
        Auth-Type CHAP {
                chap
        }
        Auth-Type MS-CHAP {
                mschap
        }
        unix
        eap
}
preacct {
        preprocess
        acct_unique
        suffix
        files
}
accounting {
        detail
        unix
        radutmp
}
session {
        radutmp
}
post-auth {
}
pre-proxy {
}
post-proxy {
        eap
}

But when I'm testing with a Alcatel client, here what I obtain :

rlm_sql (sql): Read entry nasname=192.48.19.111,shortname=NANATESTPRC,secret=titi;
rlm_sql (sql): Adding client 192.48.19.111 (NANATESTPRC) to clients list
rlm_sql (sql): Released sql socket id: 4
Module: Instantiated sql (sql)
Module: Loaded Acct-Unique-Session-Id
 acct_unique: key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port"
Module: Instantiated acct_unique (acct_unique)
Module: Loaded files
 files: usersfile = "/etc/raddb/users"
 files: acctusersfile = "/etc/raddb/acct_users"
 files: preproxy_usersfile = "/etc/raddb/preproxy_users"
 files: compat = "no"
Module: Instantiated files (files)
Module: Loaded detail
 detail: detailfile = "/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
 detail: detailperm = 384
 detail: dirperm = 493
 detail: locking = no
Module: Instantiated detail (detail)
Module: Loaded radutmp
 radutmp: filename = "/var/log/radius/radutmp"
 radutmp: username = "%{User-Name}"
 radutmp: case_sensitive = yes
 radutmp: check_with_nas = yes
 radutmp: perm = 384
 radutmp: callerid = yes
Module: Instantiated radutmp (radutmp)
Listening on authentication *:1812
Listening on accounting *:1813
Ready to process requests.
rad_recv: Access-Request packet from host 192.48.19.111:49154, id=0, length=77
        User-Name = "TOTO"
        User-Password = "toto"
        Cisco-AVPair = "shell:priv-lvl=1"
        NAS-IP-Address = 192.48.19.111
  Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 0
  modcall[authorize]: module "preprocess" returns ok for request 0
  modcall[authorize]: module "chap" returns noop for request 0
  modcall[authorize]: module "mschap" returns noop for request 0
    rlm_realm: No '@' in User-Name = "TOTO", looking up realm NULL
    rlm_realm: No such realm "NULL"
  modcall[authorize]: module "suffix" returns noop for request 0
  rlm_eap: No EAP-Message, not doing EAP
  modcall[authorize]: module "eap" returns noop for request 0
radius_xlat:  'TOTO'
rlm_sql (sql): sql_set_user escaped user --> 'x073129'
radius_xlat:  'SELECT id, UserName, Attribute, Value, op           FROM radcheck           WHERE Username = 'TOTO'           ORDER BY id'
rlm_sql (sql): Reserving sql socket id: 3
rlm_sql (sql): User TOTO not found in radcheck
radius_xlat:  'SELECT radgroupcheck.id,radgroupcheck.GroupName,radgroupcheck.Attribute,radgroupcheck.Value,radgroupcheck.op  FROM radgroupcheck,usergroup WHERE usergroup.Username = 'TOTO' AND usergroup.GroupName = radgroupcheck.GroupName ORDER BY radgroupcheck.id'
radius_xlat:  'SELECT radgroupreply.id,radgroupreply.GroupName,radgroupreply.Attribute,radgroupreply.Value,radgroupreply.op  FROM radgroupreply,usergroup WHERE usergroup.Username = 'TOTO' AND usergroup.GroupName = radgroupreply.GroupName ORDER BY radgroupreply.id'
rlm_sql (sql): User TOTO not found in radgroupcheck
rlm_sql (sql): Released sql socket id: 3
rlm_sql (sql): User not found
  modcall[authorize]: module "sql" returns notfound for request 0
modcall: leaving group authorize (returns ok) for request 0
auth: No authenticate method (Auth-Type) configuration found for the request: Rejecting the user
auth: Failed to validate the user.
Delaying request 0 for 1 seconds
Finished request 0
Going to the next request
--- Walking the entire request list ---
Waking up in 1 seconds...
--- Walking the entire request list ---
Waking up in 1 seconds...
--- Walking the entire request list ---
Sending Access-Reject of id 0 to 192.48.19.111 port 49154
Waking up in 4 seconds...

But I don't understand how to use a test client to send an MS-CHAP
authentication request ? 
It's seem that i don't have a Auth-Type ?

----- Message d'origine ----
De : Alan DeKok <aland@deployingradius.com>
À : FreeRadius users mailing list <freeradius-users@lists.freeradius.org>
Envoyé le : Lundi, 30 Juin 2008, 15h06mn 20s
Objet : Re: Re : Active Directory Integration

pingouin osmolateur wrote:
...
So I have to modify the first request from the client to use MS-CHAP request ?
No.
...
Because in my database for the User-Name, I have the following
Which is wrong.  You were told it is wrong.
...
So what I have to do ?
Delete that row from the database.

  The documentation tries to make it clear:  Setting Auth-Type is wrong.
Don't do it.
...
Do you have a link for Active Directory Integration ?
See my web site:  http://deployingradius.com

  Alan DeKok.
-
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