Re: developping a custom authentication module

MACHANI Ouahiba wrote:

I need to develop a custom authentication module to handle OTP authentication and integrate it to Freeradius server.

My questions are :

1- are files with rlm_ prefix PAM modules or simply authentication modules?

FreeRADIUS is not PAM.

2 - What should I write exactly other than an rlm_ file ? 3- For a good beginning, what are the files that I should read first ?

The files in doc/ ? There *is* documentation on the modules & the API. See also rlm_example Alan DeKok.