On 14/08/14 13:04, Kev Pearce wrote:
If FreeRADIUS could do this, the packet parsing would have to be two-pass - decode without authenticator (because you lack the secret), extract NAS-IP-Address, find client/secret, then validate authenticator / Message-Authenticator, and decide to drop or pass and decrypt encrypted fields.
But doesn't the rlm_raw module provide exactly this? The ability to get to payload attributes then use them to lookup the secret etc in the dynamic-client SQL request?
It's obviously possible, but currently that is not how FreeRADIUS works, so no, you can't currently key off NAS-IP-Address.
For the user check nas-ip-address is natively available so the user lookup by nas-ip-address is easy.
Of course - auth processing happens after the packet is authenticated using the secret and decoded, so all attributes received are available.
I also appreciate that the raw module is not official FR code.
There are presumably reasons for this.