Re: Local User with multiple passwords (or RegEX passwords) possible?

7 Jul 2011


      Phil, you got it working!

All of what you wrote was right:
- added Cleartext-Password2 to
/usr/share/freeradius/dictionary.freeradius.internal
- created user file like this:
user Cleartext-Password := "1", Cleartext-Password2 += "2"
- updated sites-enabled/default to look like this (*authorize *section)

[..]
        #
        #  Read the 'users' file
        files {
        }

        if (("%{User-Password}" != "%{control:Cleartext-Password}") &&
("%{User-Password}" != "%{control:Cleartext-Password2}")) {
                update reply {
                        Reply-Message = "I suck at FreeRadiusing!"
                }
        reject
        }
        else {
                update control {
                        Auth-Type := Accept
                }
        }
[..]

If I can buy you a beer or something (thinking of
https://secure.wikimedia.org/wikipedia/en/wiki/Beerware or
https://secure.wikimedia.org/wikipedia/en/wiki/Postcardware) just email me
:)

Best Regards


2011/7/7 Equin Nix <equin.nix@googlemail.com>
...
Hi Phil,
thanks a lot for the fast answer! Unfortunatelly your radius-skills seem to
be far far from mine, but I think I get the point.
I tried to add the following to *sites-enabled/default* (int authorize
section) (Its not a full copy of your text, I wanted to start step by step):
[...]
        #
        #  Read the 'users' file
        files {
                # compare them
                if (User-Password != control:Cleartext-Password) {
reject
                }
# probably need to set Auth-Type := Accept here
                update control {
                        Auth-Type := Accept
                }
        }
[...]
and freeradius won't start (even if I remove the update control section).
This is the error:
[...]
/etc/freeradius/sites-enabled/default[154]: Subsection of module instance
call not allowed
/etc/freeradius/sites-enabled/default[62]: Errors parsing authorize
section.
Any idea what might cause the trouble? Line 154 is the "if
(User-Password...." line.
BTW: It is not possible with RegEx?
Best regards from Germany
2011/7/7 Phil Mayers <p.mayers@imperial.ac.uk>
...
On 07/07/11 09:51, Equin Nix wrote:
...
Hi,
I am trying to set up something very basic (at least from my point of
view): I would like to have a User with multiple passwords (two
actually). How would I do this? I tried the following:
/alice Auth-Type=Local, Cleartext-Password := "test1"
alice Auth-Type=Local, Cleartext-Password := "test2"/
Do not set Auth-Type. It's almost always wrong, and is certainly wrong in
this case.
It might be possible to have >1 password; but it will probably only work
for PAP requests, unless you play carefully with module failover.
It also probably won't work in the "users" file; this is because the
"User-Password" attribute is handled specially here, as a compatibility
synonym for Cleartext-Password.
You could try something like this - define a second password attribute in
raddb/dictionary:
ATTRIBUTE       Cleartext-Password2     3002    string
...then set both in the "users" file:
alice   Cleartext-Password := "foo", Cleartext-Password2 := "bar"
...then use unlang to perform the comparisons in sites-enabled/default:
authorize {
...
 # read the passwords from "files"
 files
 # compare them
 if ((User-Password != control:Cleartext-Password) && \
     (User-Password != control:Cleartext-Password2)) {
   reject
 }
# probably need to set Auth-Type := Accept here
 update control {
   Auth-Type := Accept
 }
}
If you want to do this with requests that aren't PAP e.g. CHAP,
MSCHAP/PEAP etc. then it will be much harder.
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