Help on passing parameter to exec

[nghiapt]

Hi all,

At first, to the people who is working on FreeRADIUS, you're doing an
awesome, awesome job!

Ok, so I'm having this configuration:

in sites-available/default:
[...]
preacct {

	# Echo here yields WARNING and doesn't catch Session-Timeout
	# echo
	if (Acct-Status-Type == "Start"){
		acctstart
	}

	if (Acct-Status-Type == "Stop"){
		acctstop
	}
[...]

where acctstart and acctstop is 2 exec modules, defined like this:

exec acctstart {
	wait = yes
	program = "/accounting_start_sh.sh %{User-Name} %{reply:Session-Timeout}"
	input_pairs = reply
	output_pairs = reply
	shell_escape = yes
}

exec acctstop {
	wait = yes
	program = "/accounting_stop_sh.sh %{User-Name}
	input_pairs = reply
	output_pairs = reply
	shell_escape = yes
}

Basically, the shell script is to ssh and terminate stuff in NAS after
Session-Timeout seconds have passed (Don't ask, but NAS doesn't support
Session-Timeout so we need to do it this way). The problem is, when we have
a run, the debug yield:

[...]
Sending Access-Accept of id 121 to 127.0.0.1 port 45280
        Reply-Message = "Hello, test"
        Session-Timeout = 94
Finished request 0.
Going to the next request
Waking up in 4.7 seconds.
rad_recv: Accounting-Request packet from host 127.0.0.1 port 45280, id=123,
length=155
        NAS-Identifier = "OpenVPN.localhost.localdomain"
        User-Name = "test"
        NAS-Port = 27
        Service-Type = Dialout-Framed-User
        Framed-Protocol = PPP
        Acct-Status-Type = Start
        Framed-IP-Netmask = 255.255.248.0
        Acct-Session-Id =
"OpenVPN.localhost.localdomain.as0t1.1288162180.5521.27"
        Framed-IP-Address = 5.5.8.25
        NAS-Port-Type = Virtual
+- entering group preacct {...}
++? if (Acct-Status-Type == "Start")
? Evaluating (Acct-Status-Type == "Start") -> TRUE
++? if (Acct-Status-Type == "Start") -> TRUE
++- entering if (Acct-Status-Type == "Start") {...}
[acctstart] WARNING! Input pairs are empty.  No attributes will be passed to
the script
[acctstart]     expand: %{User-Name} -> test
[acctstart]     expand: %{reply:Session-Timeout} -> 
expr: syntax error
Exec-Program output: test is scheduled to be terminated after  min(s) 
Exec-Program-Wait: plaintext: test is scheduled to be terminated after 
min(s) 
Exec-Program: returned: 0
[...]

Note the 2 bold lines, the Session-Timeout isn't passed to the acctstart
exec, leading to shellscript doesn't run correctly.

My question is can I somehow pass the Session-Timeout value from the
Access-Accept packet to this section of preaccounting?

FYI, I'm using sql counter (the default noresetcounter) to calculate the
Session-Timeout.

Thanks a lot in advance,

N.
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