MS-CHAP-V2 with no retry

[Phil Mayers]

On 10/04/11 15:41, James J J Hooper wrote:

>
> This C=<random> needs to be saved and eventually make it's way in to
> data->challenge so that the line lower down:
> memcpy(challenge->vp_strvalue, data->challenge, MSCHAPV2_CHALLENGE_LEN);

It's actually a bit more complex; the new challenge is being generated 
inside rlm_mschap as part of the error, but AFACIT rlm_eap_mschapv2 
needs to know it, so that it can add it to the fake request which it 
then passes *back* into rlm_mschap as an MS-CHAP-Challenge attribute.

This would also get us part of the way there to password change via 
mschap (Samba currently lacks the specific API call to do this, with the 
values available in an MSCHAP CPW packet, but it might be possible to 
compile a C helper which does it...)