Pam radius authentication

[danieldinu at rdslink.ro]

Hello!

I try to authenticate ssh users logins using pam_radius_auth.so.
On my RedHat 9 I have the following setup:
- freeradius server
      - users file:
        test    Auth-Type := Local, User-Password == "test"
        
     - clients.conf
        client 127.0.0.1 {
          secret          = secret
           shortname       = localhost
        }

-pam radius module
   - cat /etc/pam.d/sshd
#%PAM-1.0
auth       required     pam_securetty.so
auth       sufficient   pam_radius_auth.so debug
auth       required     /lib/security/pam_unix_auth.so
account    required     pam_radius_auth.so debug
password   required     pam_stack.so service=system-auth
session    required     pam_stack.so service=system-auth
session    required     pam_limits.so
session    optional     pam_console.so
    -cat /etc/raddb/server
       127.0.0.1       secret             1


- pam_radius_auth.so is copied in /lib/security
-I created linux user test with home directory /home/test , without setting up a password 
- freeradius started with radiusd -X

Problem is that, when I trie to connect to this machine using ssh, the radius server receives the request, processes it, sends access-accept, but the ssh session is ended, without the user being really logged in !!! I don't know the reason why the user gets rejected...

tail -f /var/log/secure
Oct 12 11:06:27 D-Server sshd[26585]: pam_radius_auth: DEBUG: getservbyname(radius, udp) returned 1108551052.
Oct 12 11:06:27 D-Server sshd[26585]: pam_radius_auth: Got RADIUS response code 2
Oct 12 11:06:27 D-Server sshd[26585]: pam_radius_auth: authentication succeeded
Oct 12 11:06:27 D-Server sshd[26585]: Accepted password for test from 10.243.30.42 port 2847 ssh2
Oct 12 11:28:30 D-Server sshd[26590]: pam_radius_auth: Got user name test
Oct 12 11:28:30 D-Server sshd[26590]: pam_radius_auth: Sending RADIUS request code 1
Oct 12 11:28:30 D-Server sshd[26590]: pam_radius_auth: DEBUG: getservbyname(radius, udp) returned 1108551052.
Oct 12 11:28:30 D-Server sshd[26590]: pam_radius_auth: Got RADIUS response code 2
Oct 12 11:28:30 D-Server sshd[26590]: pam_radius_auth: authentication succeeded
Oct 12 11:28:30 D-Server sshd[26590]: Accepted password for test from 10.243.30.42 port 2881 ssh2

from radiusd -X :
rad_recv: Access-Request packet from host 127.0.0.1:27615, id=253, length=97
        User-Name = "test"
        User-Password = "test"
        NAS-IP-Address = 127.0.0.1
        NAS-Identifier = "sshd"
        NAS-Port = 26590
        NAS-Port-Type = Virtual
        Service-Type = Authenticate-Only
        Calling-Station-Id = "512wyse83.cosmote.rom"
  Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 0
  modcall[authorize]: module "preprocess" returns ok for request 0
  modcall[authorize]: module "chap" returns noop for request 0
  modcall[authorize]: module "mschap" returns noop for request 0
    rlm_realm: No '@' in User-Name = "test", looking up realm NULL
    rlm_realm: No such realm "NULL"
  modcall[authorize]: module "suffix" returns noop for request 0
  rlm_eap: No EAP-Message, not doing EAP
  modcall[authorize]: module "eap" returns noop for request 0
    users: Matched entry test at line 80
  modcall[authorize]: module "files" returns ok for request 0
modcall: leaving group authorize (returns ok) for request 0
  rad_check_password:  Found Auth-Type Local
auth: type Local
auth: user supplied User-Password matches local User-Password
Sending Access-Accept of id 253 to 127.0.0.1 port 27615
Finished request 0

thank you!