Re: \0 character at the end of the attibute value (authorization request)

24 Mar 2017

      On Mar 24, 2017, at 3:15 AM, Peter Balsianok <balsianok.peter@gmail.com> wrote:
...
Some client sends value + \0 character at the end of the attribute
Calling-Station-Id (e.g. 421945411479\0 ).
These clients are broken.  The vendor should be named and shamed.

  This behaviour has been forbidden by the RFCs for 20 years.  There is just no excuse for it.
...
I am trying to fix / workaround this issue via unlang (in pre-proxy
section):
update {
 &proxy-request:Calling-Station-Id :=
"%{string:&proxy-request:Calling-Station-Id}"
}
Debug output:
update {
(0)       EXPAND %{string:&proxy-request:Calling-Station-Id}
(0)          --> 421945411479
(0)       &proxy-request:Calling-Station-Id := 421945411479
(0)     } # update = noop
Is it good approach ?
Yes.
...
Could you please give me advice how to add \0 character at the end of the
attribute value, if i want to send (test request) via radclient ?
Add a \0.  It should work.

  Alan DeKok.