I'm make pam_client with pam_radius.so.

 

pam_client-> pam_radius.so---------------------------> raidius_demon

 

application layer:

   pam_chauthtok() once call.

 

 

library layer:

    pam_sm_chauthtok() twice call:

 

 

 

request send twice..

 

I don't know reason.

 

Help me please.