Old-style Acct-Unique-Session-Id hashing

[Lotkov Svyatoslav]

Hello everybody.

I wrote a policy fo FR 3.x that hashes Acct-Unique-Session-ID like in FR 2.x
This helps me migrate from 2.x to 3.x

Is there any reason to commit this code to 3.x branches ?

The code is: (in raddb/policy.d/acct_unique_fr2)

#
#       Old rlm_acct_unique style hashing
#       This code does the same thing, as in FR 2.x
#       Written by Svyatoslav Lotkov, 2015
#

acct_unique2 {
#
#       The default settings in modules/acct_unique looks like:
#
#       acct_unique {
#           key = "User-Name, Acct-Session-Id, NAS-IP-Address, NAS-Port"
#       }
#
#       We have to list values for the key in reverse order plus add the
0x00 in the end of string. Then calculate md5
#
#
    update request {
        &Tmp-Octets-0 := "NAS-Port = %{NAS-Port},NAS-IP-Address =
%{NAS-IP-Address},Acct-Session-Id = \"%{Acct-Session-ID}\",User-Name =
\"%{User-Name}\""
        &Tmp-String-0 := "%{&Tmp-Octets-0}00"
        &Tmp-Octets-1 := "%{string:&Tmp-String-0}"
        &Tmp-String-1 := "%{md5:&Tmp-Octets-1}"
        }
        if ( &Tmp-String-1 =~ /(.{1,16})/i ) {
            update request {
                &Acct-Unique-Session-Id := "%{1}"
            }
        }
}