PAM_ACCT_MGMT(3)               Linux-PAM Manual               PAM_ACCT_MGMT(3)

NAME
       pam_acct_mgmt - PAM account validation management

SYNOPSIS
       #include <security/pam_appl.h>

       int pam_acct_mgmt(pam_handle_t *pamh, int flags);

DESCRIPTION
       The pam_acct_mgmt function is used to determine if the user's account
       is valid. It checks for authentication token and account expiration and
       verifies access restrictions. It is typically called after the user has
       been authenticated.

       The pamh argument is an authentication handle obtained by a prior call
       to pam_start(). The flags argument is the binary or of zero or more of
       the following values:

       PAM_SILENT
           Do not emit any messages.

       PAM_DISALLOW_NULL_AUTHTOK
           The PAM module service should return PAM_NEW_AUTHTOK_REQD if the
           user has a null authentication token.

RETURN VALUES
       PAM_ACCT_EXPIRED
           User account has expired.

       PAM_AUTH_ERR
           Authentication failure.

       PAM_NEW_AUTHTOK_REQD
           The user account is valid but their authentication token is
           expired. The correct response to this return-value is to require
           that the user satisfies the pam_chauthtok() function before
           obtaining service. It may not be possible for some applications to
           do this. In such cases, the user should be denied access until such
           time as they can update their password.

       PAM_PERM_DENIED
           Permission denied.

       PAM_SUCCESS
           The authentication token was successfully updated.

       PAM_USER_UNKNOWN
           User unknown to password service.

SEE ALSO
       pam_start(3), pam_authenticate(3), pam_chauthtok(3), pam_strerror(3),
       pam(7)

Linux-PAM Manual                  09/03/2021                  PAM_ACCT_MGMT(3)

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