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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* lib/kadm5/srv/pwqual_princ.c
*
* Copyright (C) 2010 by the Massachusetts Institute of Technology.
* All rights reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* Password quality module to check passwords against principal components.
*/
#include "k5-platform.h"
#include <krb5/pwqual_plugin.h>
#include "server_internal.h"
static krb5_error_code
princ_check(krb5_context context, krb5_pwqual_moddata data,
const char *password, const char *policy_name,
krb5_principal princ, const char **languages)
{
int i, n;
char *cp;
/* Don't check for principals with no password policy. */
if (policy_name == NULL)
return 0;
/* Check against components of the principal. */
n = krb5_princ_size(handle->context, princ);
cp = krb5_princ_realm(handle->context, princ)->data;
if (strcasecmp(cp, password) == 0)
return KADM5_PASS_Q_DICT;
for (i = 0; i < n; i++) {
cp = krb5_princ_component(handle->context, princ, i)->data;
if (strcasecmp(cp, password) == 0) {
krb5_set_error_message(context, KADM5_PASS_Q_DICT,
"Password may not match principal name");
return KADM5_PASS_Q_DICT;
}
}
return 0;
}
krb5_error_code
pwqual_princ_initvt(krb5_context context, int maj_ver, int min_ver,
krb5_plugin_vtable vtable)
{
krb5_pwqual_vtable vt;
if (maj_ver != 1)
return KRB5_PLUGIN_VER_NOTSUPP;
vt = (krb5_pwqual_vtable)vtable;
vt->name = "princ";
vt->check = princ_check;
return 0;
}
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