Simultaneous-Use check MySQL

Thu Oct 13 15:02:36 CEST 2005

Hi,

I'm experiencing problems with Simultaneous-Use and MySQL.

Due I have two freeradius servers, I cannot use for accounting radutmp because 
if a radius gets a stop packet and the start one went to the other radius the 
driver fails, so all accounting is based on MySQL.

The MySQL queries that the radius perform are the followings (using standard 
sql.conf file with simul_count_query uncommented, the file is attached)
1- authorize_check_query (gets the Simultaneous-Use := 1)
2- authorize_group_check_query
3- authorize_reply_query
4- authorize_group_reply_query
5- simul_count_query
6- postauth_query
7- accounting_start_query
8- accounting_update_query (updates the radacct table with the IP address from 
the pool)

If I try to connect with the same user and the previous conection still 
established, this is the sequence of queries:
1- authorize_check_query
2- authorize_group_check_query
3- authorize_reply_query
4- authorize_group_reply_query
5- simul_count_query **returns 1**
6- simul_verify_query 
7- accounting stop query **performs a stop in the previously established 
session**
8- postauth_query
9- accounting_start_query
10- accounting_update_query (updates the radacct table with the IP address 
from the pool)

I think either simul_verify_query is wrong or there is something wrong with 
sql.conf. I've attached it.

If I change Simultaneous-Use := 0 the user cannot connect as I should behave 
and the logs reports "Auth: Multiple logins (max 0)"

Freeradius and freeradius-mysql are etch/testing packages Debian official 
packages (version 1.0.4-2)

Any help would be appreciated, thanks in advance
-- 
David
-------------- next part --------------
#
#  Configuration for the SQL module, when using MySQL.
#
#  The database schema is available at:
#
#   src/radiusd/src/modules/rlm_sql/drivers/rlm_sql_mysql/db_mysql.sql
#
#  If you are using PostgreSQL, please use 'postgresql.conf', instead.
#  If you are using Oracle, please use 'oracle.conf', instead.
#  If you are using MS-SQL, please use 'mssql.conf', instead.
#
#	$Id: sql.conf,v 1.41.2.1 2004/06/10 00:45:01 phampson Exp $
#
sql {

	# Database type
	# Current supported are: rlm_sql_mysql, rlm_sql_postgresql,
	# rlm_sql_iodbc, rlm_sql_oracle, rlm_sql_unixodbc, rlm_sql_freetds
	driver = "rlm_sql_mysql"

	# Connect info
	server = "mysql.server.com"
	login = "mysql.user"
	password = "mysql.pass"

	# Database table configuration
	radius_db = "radius.table"

	# If you want both stop and start records logged to the
	# same SQL table, leave this as is.  If you want them in
	# different tables, put the start table in acct_table1
	# and stop table in acct_table2
	acct_table1 = "radacct"
	acct_table2 = "radacct"

	# Allow for storing data after authentication
	postauth_table = "radpostauth"

	authcheck_table = "radcheck"
	authreply_table = "radreply"

	groupcheck_table = "radgroupcheck"
	groupreply_table = "radgroupreply"

	usergroup_table = "usergroup"

	# Remove stale session if checkrad does not see a double login
	deletestalesessions = yes

	# Print all SQL statements when in debug mode (-x)
	sqltrace = no
	sqltracefile = ${logdir}/sqltrace.sql

	# number of sql connections to make to server
	num_sql_socks = 5

	# number of seconds to dely retrying on a failed database
	# connection (per_socket)
	connect_failure_retry_delay = 60

	# Safe characters list for sql queries. Everything else is replaced
	# with their mime-encoded equivalents.
	# The default list should be ok
	#safe-characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /"

	#######################################################################
	#  Query config:  Username
	#######################################################################
	# This is the username that will get substituted, escaped, and added 
	# as attribute 'SQL-User-Name'.  '%{SQL-User-Name}' should be used below 
	# everywhere a username substitution is needed so you you can be sure 
	# the username passed from the client is escaped properly.  
	#
	#  Uncomment the next line, if you want the sql_user_name to mean:
	#
	#    Use Stripped-User-Name, if it's there.
	#    Else use User-Name, if it's there,
	#    Else use hard-coded string "DEFAULT" as the user name.
	#sql_user_name = "%{Stripped-User-Name:-%{User-Name:-DEFAULT}}"
	#
	sql_user_name = "%{User-Name}"

	#######################################################################
	#  Default profile
	#######################################################################
	# This is the default profile. It is found in SQL by group membership. 
	# That means that this profile must be a member of at least one group
	# which will contain the corresponding check and reply items.
	# This profile will be queried in the authorize section for every user.
	# The point is to assign all users a default profile without having to
	# manually add each one to a group that will contain the profile.
	# The SQL module will also honor the User-Profile attribute. This
	# attribute can be set anywhere in the authorize section (ie the users
	# file). It is found exactly as the default profile is found.
	# If it is set then it will *overwrite* the default profile setting.
	# The idea is to select profiles based on checks on the incoming packets,
	# not on user group membership. For example:
	# -- users file --
	# DEFAULT	Service-Type == Outbound-User, User-Profile := "outbound"
	# DEFAULT	Service-Type == Framed-User, User-Profile := "framed"
	#
	# By default the default_user_profile is not set
	#
	#default_user_profile = "DEFAULT"
	#
	# Determines if we will query the default_user_profile or the User-Profile
	# if the user is not found. If the profile is found then we consider the user
	# found. By default this is set to 'no'.
	# 
	#query_on_not_found = no

	#######################################################################
	#  Authorization Queries
	#######################################################################
	#  These queries compare the check items for the user
	#  in ${authcheck_table} and setup the reply items in 
	#  ${authreply_table}.  You can use any query/tables
	#  you want, but the return data for each row MUST 
	#  be in the  following order:
	#
	#  0. Row ID (currently unused)
	#  1. UserName/GroupName
	#  2. Item Attr Name
	#  3. Item Attr Value
	#  4. Item Attr Operation
	#######################################################################
	# Use these for case sensitive usernames. WARNING: Slower queries!
#	authorize_check_query = "SELECT id,UserName,Attribute,Value,op FROM ${authcheck_table} WHERE STRCMP(Username, '%{SQL-User-Name}') = 0 ORDER BY id"
#	authorize_reply_query = "SELECT id,UserName,Attribute,Value,op FROM ${authreply_table} WHERE STRCMP(Username, '%{SQL-User-Name}') = 0 ORDER BY id"

	authorize_check_query = "SELECT id,UserName,Attribute,Value,op FROM ${authcheck_table} WHERE Username = '%{SQL-User-Name}' ORDER BY id"
	authorize_reply_query = "SELECT id,UserName,Attribute,Value,op FROM ${authreply_table} WHERE Username = '%{SQL-User-Name}' ORDER BY id"

	# Use these for case sensitive usernames. WANRING: Slower queries!
#	authorize_group_check_query = "SELECT ${groupcheck_table}.id,${groupcheck_table}.GroupName,${groupcheck_table}.Attribute,${groupcheck_table}.Value,${groupcheck_table}.op FROM ${groupcheck_table},${usergroup_table} WHERE STRCMP(${usergroup_table}.Username, '%{SQL-User-Name}') = 0 AND ${usergroup_table}.GroupName = ${groupcheck_table}.GroupName ORDER BY ${groupcheck_table}.id"
#	authorize_group_reply_query = "SELECT ${groupreply_table}.id,${groupreply_table}.GroupName,${groupreply_table}.Attribute,${groupreply_table}.Value,${groupreply_table}.op  FROM ${groupreply_table},${usergroup_table} WHERE STRCMP(${usergroup_table}.Username, '%{SQL-User-Name}') = 0 AND ${usergroup_table}.GroupName = ${groupreply_table}.GroupName ORDER BY ${groupreply_table}.id"

	authorize_group_check_query = "SELECT ${groupcheck_table}.id,${groupcheck_table}.GroupName,${groupcheck_table}.Attribute,${groupcheck_table}.Value,${groupcheck_table}.op  FROM ${groupcheck_table},${usergroup_table} WHERE ${usergroup_table}.Username = '%{SQL-User-Name}' AND ${usergroup_table}.GroupName = ${groupcheck_table}.GroupName ORDER BY ${groupcheck_table}.id"
	authorize_group_reply_query = "SELECT ${groupreply_table}.id,${groupreply_table}.GroupName,${groupreply_table}.Attribute,${groupreply_table}.Value,${groupreply_table}.op  FROM ${groupreply_table},${usergroup_table} WHERE ${usergroup_table}.Username = '%{SQL-User-Name}' AND ${usergroup_table}.GroupName = ${groupreply_table}.GroupName ORDER BY ${groupreply_table}.id"

	#######################################################################
	#  Accounting Queries
	#######################################################################
	# accounting_onoff_query	- query for Accounting On/Off packets 
	# accounting_update_query	- query for Accounting update packets 
	# accounting_update_query_alt	- query for Accounting update packets 
	#                               (alternate in case first query fails)
	# accounting_start_query	- query for Accounting start packets 
	# accounting_start_query_alt	- query for Accounting start packets 
	#                               (alternate in case first query fails)
	# accounting_stop_query		- query for Accounting stop packets 
	# accounting_stop_query_alt	- query for Accounting start packets 
	#                               (alternate in case first query doesn't
	#                                affect any existing rows in the table)
	#######################################################################
	accounting_onoff_query = "UPDATE ${acct_table1} 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'"

	accounting_update_query = "UPDATE ${acct_table1} \
	 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}'"

	accounting_update_query_alt = "INSERT into ${acct_table1} (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')"

	accounting_start_query = "INSERT into ${acct_table1} (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')"

	accounting_start_query_alt  = "UPDATE ${acct_table1} 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}'"

	accounting_stop_query = "UPDATE ${acct_table2} 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}'"

	accounting_stop_query_alt = "INSERT into ${acct_table2} (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}')"

	#######################################################################
	# Simultaneous Use Checking Queries
	#######################################################################
	# simul_count_query	- query for the number of current connections
	#			- If this is not defined, no simultaneouls use checking 
	#			- will be performed by this module instance
	# simul_verify_query	- query to return details of current connections for verification
	#			- Leave blank or commented out to disable verification step
	#			- Note that the returned field order should not be changed.
	#######################################################################

	# Uncomment simul_count_query to enable simultaneous use checking
	simul_count_query = "SELECT COUNT(*) FROM ${acct_table1} WHERE UserName='%{SQL-User-Name}' AND AcctStopTime = 0"
	simul_verify_query = "SELECT RadAcctId, AcctSessionId, UserName, NASIPAddress, NASPortId, FramedIPAddress, CallingStationId, FramedProtocol FROM ${acct_table1} WHERE UserName='%{SQL-User-Name}' AND AcctStopTime = 0"

	#######################################################################
	# Group Membership Queries
	#######################################################################
	# group_membership_query	- Check user group membership
	#######################################################################

	group_membership_query = "SELECT GroupName FROM ${usergroup_table} WHERE UserName='%{SQL-User-Name}'"

	#######################################################################
	# Authentication Logging Queries
	#######################################################################
	# postauth_query		- Insert some info after authentication
	#######################################################################

	postauth_query = "INSERT into ${postauth_table} (id, user, pass, reply, date) values ('', '%{User-Name}', '%{User-Password:-Chap-Password}', '%{reply:Packet-Type}', NOW())"

	#
	# Set to 'yes' to read radius clients from the database ('nas' table)
	#readclients = yes
}