eap/tls questions with freeradius

[vazoumana fofana]

Hi , 

i've got a question : 
i've set up a freeradius server with EAP/TLS.
In my configuration, i use check_cert_issuer in order to check certificate.
Is there any functions wich allows me to check client's certificate subject (C,O,OU ??) ?
Further more, i got an other question : 
when a client requests authentication, server checks before users file then certificate validity of a client ?

Cheers
 		 	   		  
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