1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ 2 /* lib/kadm5/srv/pwqual_empty.c */ 3 /* 4 * Copyright (C) 2010 by the Massachusetts Institute of Technology. 5 * All rights reserved. 6 * 7 * Export of this software from the United States of America may 8 * require a specific license from the United States Government. 9 * It is the responsibility of any person or organization contemplating 10 * export to obtain such a license before exporting. 11 * 12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 13 * distribute this software and its documentation for any purpose and 14 * without fee is hereby granted, provided that the above copyright 15 * notice appear in all copies and that both that copyright notice and 16 * this permission notice appear in supporting documentation, and that 17 * the name of M.I.T. not be used in advertising or publicity pertaining 18 * to distribution of the software without specific, written prior 19 * permission. Furthermore if you modify this software you must label 20 * your software as modified software and not distribute it in such a 21 * fashion that it might be confused with the original M.I.T. software. 22 * M.I.T. makes no representations about the suitability of 23 * this software for any purpose. It is provided "as is" without express 24 * or implied warranty. 25 */ 26 27 /* Password quality module to reject empty passwords */ 28 29 #include "k5-int.h" 30 #include <krb5/pwqual_plugin.h> 31 #include "server_internal.h" 32 33 static krb5_error_code 34 empty_check(krb5_context context, krb5_pwqual_moddata data, 35 const char *password, const char *policy_name, 36 krb5_principal princ, const char **languages) 37 { 38 /* Unlike other built-in modules, this one operates even for principals 39 * with no password policy. */ 40 if (*password == '\0') { 41 k5_setmsg(context, KADM5_PASS_Q_TOOSHORT, 42 _("Empty passwords are not allowed")); 43 return KADM5_PASS_Q_TOOSHORT; 44 } 45 return 0; 46 } 47 48 krb5_error_code 49 pwqual_empty_initvt(krb5_context context, int maj_ver, int min_ver, 50 krb5_plugin_vtable vtable) 51 { 52 krb5_pwqual_vtable vt; 53 54 if (maj_ver != 1) 55 return KRB5_PLUGIN_VER_NOTSUPP; 56 vt = (krb5_pwqual_vtable)vtable; 57 vt->name = "empty"; 58 vt->check = empty_check; 59 return 0; 60 } 61