Simultaneous-Use doesn't work.

[Ernie Dunbar]

I'm using FreeRADIUS 1.0.2 and its associated mysql plugin on a Debian 3.1
system. I've managed to get the server working to where our customers are
authenticating out of the mysql database just fine and the accounting
records are being stored in mysql properly too.

But the Simultaneous-Use configuration directive doesn't do a thing. It
doesn't even check against radwtmp (even though the radwho command works
fine) when someone logs on. The FAQ at
http://www.freeradius.org/faq/#4.7.2 doesn't help any either, in no small
part because it's outdated and neither raddb/naslist nor radcheck.pl exist
in the new version. I don't see anything about Simultaneous-Use being
parsed when I run 'freeradius -X' however, so that might be a clue.

Here's the appropriate configuration on our server:

clients.conf:

client XXX.XXX.XXX.XXX {
        secret = XXXXXX
        nastype = cisco
        login = XXXXXX
        password = XXXXXX
        shortname = dialup
}

users:

DEFAULT Framed-Protocol == PPP, Simultaneous-Use := 1
        Framed-Protocol = PPP,
        Service-Type = Framed-User,
        Framed-Compression = Van-Jacobson-TCP-IP

And finally, the output of freeradius -X:

ns2:/etc/freeradius# /usr/sbin/freeradius -X
Starting - reading configuration files ...
reread_config:  reading radiusd.conf
Config:   including file: /etc/freeradius/proxy.conf
Config:   including file: /etc/freeradius/clients.conf
Config:   including file: /etc/freeradius/snmp.conf
Config:   including file: /etc/freeradius/eap.conf
Config:   including file: /etc/freeradius/sql.conf
 main: prefix = "/usr"
 main: localstatedir = "/var"
 main: logdir = "/var/log/freeradius"
 main: libdir = "/usr/lib/freeradius"
 main: radacctdir = "/var/log/freeradius/radacct"
 main: hostname_lookups = no
 main: max_request_time = 30
 main: cleanup_delay = 5
 main: max_requests = 256
 main: delete_blocked_requests = 0
 main: port = 1812
 main: allow_core_dumps = no
 main: log_stripped_names = yes
 main: log_file = "/var/log/freeradius/radius.log"
 main: log_auth = yes
 main: log_auth_badpass = yes
 main: log_auth_goodpass = yes
 main: pidfile = "/var/run/freeradius/freeradius.pid"
 main: user = "freerad"
 main: group = "freerad"
 main: usercollide = no
 main: lower_user = "no"
 main: lower_pass = "no"
 main: nospace_user = "after"
 main: nospace_pass = "after"
 main: checkrad = "/usr/sbin/checkrad"
 main: proxy_requests = off
 security: max_attributes = 200
 security: reject_delay = 1
 security: status_server = no
 main: debug_level = 0
read_config_files:  reading dictionary
read_config_files:  reading naslist
read_config_files:  reading clients
read_config_files:  reading realms
radiusd:  entering modules setup
Module: Library search path is /usr/lib/freeradius
Module: Loaded exec
 exec: wait = yes
 exec: program = "(null)"
 exec: input_pairs = "request"
 exec: output_pairs = "(null)"
 exec: packet_type = "(null)"
rlm_exec: Wait=yes but no output defined. Did you mean output=none?
Module: Instantiated exec (exec)
Module: Loaded expr
Module: Instantiated expr (expr)
Module: Loaded PAP
 pap: encryption_scheme = "crypt"
Module: Instantiated pap (pap)
Module: Loaded MS-CHAP
 mschap: use_mppe = yes
 mschap: require_encryption = no
 mschap: require_strong = no
 mschap: with_ntdomain_hack = no
 mschap: passwd = "(null)"
 mschap: authtype = "MS-CHAP"
 mschap: ntlm_auth = "(null)"
Module: Instantiated mschap (mschap)
Module: Loaded System
 unix: cache = no
 unix: passwd = "(null)"
 unix: shadow = "/etc/shadow"
 unix: group = "(null)"
 unix: radwtmp = "/var/log/freeradius/radwtmp"
 unix: usegroup = no
 unix: cache_reload = 600
Module: Instantiated unix (unix)
Module: Loaded preprocess
 preprocess: huntgroups = "/etc/freeradius/huntgroups"
 preprocess: hints = "/etc/freeradius/hints"
 preprocess: with_ascend_hack = no
 preprocess: ascend_channels_per_line = 23
 preprocess: with_ntdomain_hack = no
 preprocess: with_specialix_jetstream_hack = no
 preprocess: with_cisco_vsa_hack = no
Module: Instantiated preprocess (preprocess)
Module: Loaded files
 files: usersfile = "/etc/freeradius/users"
 files: acctusersfile = "/etc/freeradius/acct_users"
 files: preproxy_usersfile = "/etc/freeradius/preproxy_users"
 files: compat = "no"
Module: Instantiated files (files)
Module: Loaded SQL
 sql: driver = "rlm_sql_mysql"
 sql: server = "localhost"
 sql: port = ""
 sql: login = "dialupacct"
 sql: password = "d8271@#1"
 sql: radius_db = "dialupacct"
 sql: acct_table = "radacct"
 sql: acct_table2 = "radacct"
 sql: authcheck_table = "radcheck"
 sql: authreply_table = "radreply"
 sql: groupcheck_table = "radgroupcheck"
 sql: groupreply_table = "radgroupreply"
 sql: usergroup_table = "usergroup"
 sql: nas_table = "nas"
 sql: dict_table = "dictionary"
 sql: sqltrace = yes
 sql: sqltracefile = "/var/log/freeradius/sqltrace.sql"
 sql: readclients = no
 sql: deletestalesessions = yes
 sql: num_sql_socks = 5
 sql: sql_user_name = "%{User-Name}"
 sql: default_user_profile = ""
 sql: query_on_not_found = no
 sql: authorize_check_query = "SELECT id,UserName,Attribute,Value,op FROM
radcheck WHERE Username = '%{SQL-User-Name}' ORDER BY id"
 sql: authorize_reply_query = "SELECT id,UserName,Attribute,Value,op FROM
radreply WHERE Username = '%{SQL-User-Name}' ORDER BY id"
 sql: authorize_group_check_query = "SELECT
radgroupcheck.id,radgroupcheck.GroupName,radgroupcheck.Attribute,radgroupcheck.Value,radgroupcheck.op
 FROM radgroupcheck,usergroup WHERE usergroup.Username =
'%{SQL-User-Name}' AND usergroup.GroupName = radgroupcheck.GroupName
ORDER BY radgroupcheck.id"
 sql: authorize_group_reply_query = "SELECT
radgroupreply.id,radgroupreply.GroupName,radgroupreply.Attribute,radgroupreply.Value,radgroupreply.op
 FROM radgroupreply,usergroup WHERE usergroup.Username =
'%{SQL-User-Name}' AND usergroup.GroupName = radgroupreply.GroupName
ORDER BY radgroupreply.id"
 sql: accounting_onoff_query = "UPDATE radacct SET AcctStopTime='%S',
AcctSessionTime=unix_timestamp('%S') - unix_timestamp(AcctStartTime),
AcctTerminateCause='%{Acct-Terminate-Cause}', AcctStopDelay =
'%{Acct-Delay-Time}' WHERE AcctSessionTime=0 AND AcctStopTime=0 AND
NASIPAddress= '%{NAS-IP-Address}' AND AcctStartTime <= '%S'"
 sql: accounting_update_query = "UPDATE radacct ? SET FramedIPAddress =
'%{Framed-IP-Address}', ? AcctSessionTime = '%{Acct-Session-Time}', ?
AcctInputOctets = '%{Acct-Input-Octets}', ? AcctOutputOctets =
'%{Acct-Output-Octets}' ? WHERE AcctSessionId = '%{Acct-Session-Id}' ?
AND UserName = '%{SQL-User-Name}' ? AND NASIPAddress=
'%{NAS-IP-Address}'"
 sql: accounting_update_query_alt = "INSERT into radacct (AcctSessionId,
AcctUniqueId, UserName, Realm, NASIPAddress, NASPortId, NASPortType,
AcctStartTime, AcctSessionTime, AcctAuthentic, ConnectInfo_start,
AcctInputOctets, AcctOutputOctets, CalledStationId, CallingStationId,
ServiceType, FramedProtocol, FramedIPAddress, AcctStartDelay)
values('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}',
'%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{NAS-Port}',
'%{NAS-Port-Type}', DATE_SUB('%S',INTERVAL (%{Acct-Session-Time:-0} +
%{Acct-Delay-Time:-0}) SECOND), '%{Acct-Session-Time}',
'%{Acct-Authentic}', '', '%{Acct-Input-Octets}', '%{Acct-Output-Octets}',
'%{Called-Station-Id}', '%{Calling-Station-Id}', '%{Service-Type}',
'%{Framed-Protocol}', '%{Framed-IP-Address}', '0')"
 sql: accounting_start_query = "INSERT into radacct (AcctSessionId,
AcctUniqueId, UserName, Realm, NASIPAddress, NASPortId, NASPortType,
AcctStartTime, AcctStopTime, AcctSessionTime, AcctAuthentic,
ConnectInfo_start, ConnectInfo_stop, AcctInputOctets, AcctOutputOctets,
CalledStationId, CallingStationId, AcctTerminateCause, ServiceType,
FramedProtocol, FramedIPAddress, AcctStartDelay, AcctStopDelay)
values('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}',
'%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{NAS-Port}',
'%{NAS-Port-Type}', '%S', '0', '0', '%{Acct-Authentic}',
'%{Connect-Info}', '', '0', '0', '%{Called-Station-Id}',
'%{Calling-Station-Id}', '', '%{Service-Type}', '%{Framed-Protocol}',
'%{Framed-IP-Address}', '%{Acct-Delay-Time}', '0')"
 sql: accounting_start_query_alt = "UPDATE radacct SET AcctStartTime =
'%S', AcctStartDelay = '%{Acct-Delay-Time}', ConnectInfo_start =
'%{Connect-Info}' WHERE AcctSessionId = '%{Acct-Session-Id}' AND UserName
= '%{SQL-User-Name}' AND NASIPAddress = '%{NAS-IP-Address}'"
 sql: accounting_stop_query = "UPDATE radacct SET AcctStopTime = '%S',
AcctSessionTime = '%{Acct-Session-Time}', AcctInputOctets =
'%{Acct-Input-Octets}', AcctOutputOctets = '%{Acct-Output-Octets}',
AcctTerminateCause = '%{Acct-Terminate-Cause}', AcctStopDelay =
'%{Acct-Delay-Time}', ConnectInfo_stop = '%{Connect-Info}' WHERE
AcctSessionId = '%{Acct-Session-Id}' AND UserName = '%{SQL-User-Name}'
AND NASIPAddress = '%{NAS-IP-Address}'"
 sql: accounting_stop_query_alt = "INSERT into radacct (AcctSessionId,
AcctUniqueId, UserName, Realm, NASIPAddress, NASPortId, NASPortType,
AcctStartTime, AcctStopTime, AcctSessionTime, AcctAuthentic,
ConnectInfo_start, ConnectInfo_stop, AcctInputOctets, AcctOutputOctets,
CalledStationId, CallingStationId, AcctTerminateCause, ServiceType,
FramedProtocol, FramedIPAddress, AcctStartDelay, AcctStopDelay)
values('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}',
'%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{NAS-Port}',
'%{NAS-Port-Type}', DATE_SUB('%S', INTERVAL (%{Acct-Session-Time:-0} +
%{Acct-Delay-Time:-0}) SECOND), '%S', '%{Acct-Session-Time}',
'%{Acct-Authentic}', '', '%{Connect-Info}', '%{Acct-Input-Octets}',
'%{Acct-Output-Octets}', '%{Called-Station-Id}', '%{Calling-Station-Id}',
'%{Acct-Terminate-Cause}', '%{Service-Type}', '%{Framed-Protocol}',
'%{Framed-IP-Address}', '0', '%{Acct-Delay-Time}')"
 sql: group_membership_query = "SELECT GroupName FROM usergroup WHERE
UserName='%{SQL-User-Name}'"
 sql: connect_failure_retry_delay = 60
 sql: simul_count_query = "SELECT COUNT(*) FROM radacct WHERE
UserName='%{SQL-User-Name}' AND AcctStopTime = 0"
 sql: simul_verify_query = "SELECT RadAcctId, AcctSessionId, UserName,
NASIPAddress, NASPortId, FramedIPAddress, CallingStationId,
FramedProtocol FROM radacct WHERE UserName='%{SQL-User-Name}' AND
AcctStopTime = 0"
 sql: postauth_table = "radpostauth"
 sql: postauth_query = "INSERT into radpostauth (id, user, pass, reply,
date) values ('', '%{User-Name}', '%{User-Password:-Chap-Password}',
'%{reply:Packet-Type}', NOW())"
 sql: safe-characters =
"@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /"
rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked
rlm_sql (sql): Attempting to connect to dialupacct at localhost:/dialupacct
rlm_sql (sql): starting 0
rlm_sql (sql): Attempting to connect rlm_sql_mysql #0
rlm_sql_mysql: Starting connect to MySQL server for #0
rlm_sql (sql): Connected new DB handle, #0
rlm_sql (sql): starting 1
rlm_sql (sql): Attempting to connect rlm_sql_mysql #1
rlm_sql_mysql: Starting connect to MySQL server for #1
rlm_sql (sql): Connected new DB handle, #1
rlm_sql (sql): starting 2
rlm_sql (sql): Attempting to connect rlm_sql_mysql #2
rlm_sql_mysql: Starting connect to MySQL server for #2
rlm_sql (sql): Connected new DB handle, #2
rlm_sql (sql): starting 3
rlm_sql (sql): Attempting to connect rlm_sql_mysql #3
rlm_sql_mysql: Starting connect to MySQL server for #3
rlm_sql (sql): Connected new DB handle, #3
rlm_sql (sql): starting 4
rlm_sql (sql): Attempting to connect rlm_sql_mysql #4
rlm_sql_mysql: Starting connect to MySQL server for #4
rlm_sql (sql): Connected new DB handle, #4
Module: Instantiated sql (sql)
Module: Loaded realm
 realm: format = "suffix"
 realm: delimiter = "@"
 realm: ignore_default = no
 realm: ignore_null = no
Module: Instantiated realm (suffix)
Module: Loaded detail
 detail: detailfile =
"/var/log/freeradius/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/freeradius/radutmp"
 radutmp: username = "%{User-Name}"
 radutmp: case_sensitive = yes
 radutmp: check_with_nas = yes
 radutmp: perm = 384
 radutmp: callerid = yes
Module: Instantiated radutmp (radutmp)
Module: Loaded eap
 eap: default_eap_type = "md5"
 eap: timer_expire = 60
 eap: ignore_unknown_eap_types = no
 eap: cisco_accounting_username_bug = no
rlm_eap: Loaded and initialized type md5
rlm_eap: Loaded and initialized type leap
 gtc: challenge = "Password: "
 gtc: auth_type = "PAP"
rlm_eap: Loaded and initialized type gtc
 mschapv2: with_ntdomain_hack = no
rlm_eap: Loaded and initialized type mschapv2
Module: Instantiated eap (eap)
Listening on authentication *:1812
Listening on accounting *:1813
Ready to process requests.