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Copied unsupported password mechanisms to here. Move more as necessary.
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34
contrib/slapd-modules/passwd/README
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34
contrib/slapd-modules/passwd/README
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Copyright 2004 The OpenLDAP Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted only as authorized by the OpenLDAP
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Public License.
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This directory contains native slapd plugins for password mechanisms that
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are not actively supported by the project. Currently this includes the
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Kerberos and Netscape MTA-MD5 password mechanisms.
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To use the Kerberos plugin, add:
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moduleload pw-kerberos.so
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to your slapd configuration file.
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To use the Netscape plugin, add:
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moduleload pw-netscape.so
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to your slapd configuration file.
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No Makefile is provided. Use a command line similar to:
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gcc -shared -I../../../include -Wall -g -DHAVE_KRB5 -o pw-kerberos.so kerberos.c
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to compile the Kerberos plugin. Replace HAVE_KRB5 with HAVE_KRB4 if you want
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to use Kerberos IV. If your Kerberos header files are not in the C compiler's
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default path, you will need to add a "-I" directive for that as well.
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The corresponding command for the Netscape plugin would be:
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gcc -shared -I../../../include -Wall -g -o pw-netscape.so netscape.c
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208
contrib/slapd-modules/passwd/kerberos.c
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208
contrib/slapd-modules/passwd/kerberos.c
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2004 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include <string.h>
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#include <unistd.h>
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#include <lber.h>
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#include <lber_pvt.h> /* BER_BVC definition */
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#include "lutil.h"
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#ifdef HAVE_KRB5
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#include <krb5.h>
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#elif defined(HAVE_KRB4)
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#include <krb.h>
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#endif
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/* From <ldap_pvt.h> */
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LDAP_F( char *) ldap_pvt_get_fqdn LDAP_P(( char * ));
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static LUTIL_PASSWD_CHK_FUNC chk_kerberos;
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static const struct berval scheme = BER_BVC("{KERBEROS}");
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static int chk_kerberos(
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const struct berval *sc,
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const struct berval * passwd,
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const struct berval * cred,
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const char **text )
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{
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unsigned int i;
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int rtn;
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for( i=0; i<cred->bv_len; i++) {
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if(cred->bv_val[i] == '\0') {
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return 1; /* NUL character in password */
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}
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}
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if( cred->bv_val[i] != '\0' ) {
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return 1; /* cred must behave like a string */
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}
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for( i=0; i<passwd->bv_len; i++) {
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if(passwd->bv_val[i] == '\0') {
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return 1; /* NUL character in password */
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}
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}
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if( passwd->bv_val[i] != '\0' ) {
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return 1; /* passwd must behave like a string */
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}
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rtn = 1;
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#ifdef HAVE_KRB5 /* HAVE_HEIMDAL_KRB5 */
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{
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/* Portions:
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* Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H\xf6gskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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krb5_context context;
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krb5_error_code ret;
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krb5_creds creds;
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krb5_get_init_creds_opt get_options;
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krb5_verify_init_creds_opt verify_options;
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krb5_principal client, server;
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#ifdef notdef
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krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP};
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#endif
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ret = krb5_init_context( &context );
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if (ret) {
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return 1;
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}
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#ifdef notdef
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krb5_get_init_creds_opt_set_preauth_list(&get_options,
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pre_auth_types, 1);
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#endif
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krb5_get_init_creds_opt_init( &get_options );
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krb5_verify_init_creds_opt_init( &verify_options );
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ret = krb5_parse_name( context, passwd->bv_val, &client );
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if (ret) {
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krb5_free_context( context );
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return 1;
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}
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ret = krb5_get_init_creds_password( context,
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&creds, client, cred->bv_val, NULL,
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NULL, 0, NULL, &get_options );
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if (ret) {
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krb5_free_principal( context, client );
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krb5_free_context( context );
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return 1;
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}
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{
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char *host = ldap_pvt_get_fqdn( NULL );
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if( host == NULL ) {
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krb5_free_principal( context, client );
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krb5_free_context( context );
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return 1;
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}
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ret = krb5_sname_to_principal( context,
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host, "ldap", KRB5_NT_SRV_HST, &server );
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ber_memfree( host );
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}
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if (ret) {
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krb5_free_principal( context, client );
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krb5_free_context( context );
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return 1;
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}
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ret = krb5_verify_init_creds( context,
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&creds, server, NULL, NULL, &verify_options );
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krb5_free_principal( context, client );
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krb5_free_principal( context, server );
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krb5_free_cred_contents( context, &creds );
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krb5_free_context( context );
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rtn = !!ret;
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}
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#elif defined(HAVE_KRB4)
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{
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/* Borrowed from Heimdal kpopper */
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/* Portions:
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* Copyright (c) 1989 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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int status;
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char lrealm[REALM_SZ];
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char tkt[MAXHOSTNAMELEN];
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status = krb_get_lrealm(lrealm,1);
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if (status == KFAILURE) {
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return 1;
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}
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snprintf(tkt, sizeof(tkt), "%s_slapd.%u",
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TKT_ROOT, (unsigned)getpid());
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krb_set_tkt_string (tkt);
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status = krb_verify_user( passwd->bv_val, "", lrealm,
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cred->bv_val, 1, "ldap");
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dest_tkt(); /* no point in keeping the tickets */
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return status == KFAILURE;
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}
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#endif
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return rtn;
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}
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int init_module(int argc, char *argv[]) {
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return lutil_passwd_add( (struct berval *)&scheme, chk_kerberos, NULL );
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}
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80
contrib/slapd-modules/passwd/netscape.c
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80
contrib/slapd-modules/passwd/netscape.c
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2004 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include <string.h>
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#include <unistd.h>
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#include <lber.h>
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#include <lber_pvt.h>
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#include "lutil.h"
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#include "lutil_md5.h"
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static LUTIL_PASSWD_CHK_FUNC chk_ns_mta_md5;
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static const struct berval scheme = BER_BVC("{NS-MTA-MD5}");
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#define NS_MTA_MD5_PASSLEN 64
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static int chk_ns_mta_md5(
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const struct berval *scheme,
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const struct berval *passwd,
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const struct berval *cred,
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const char **text )
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{
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lutil_MD5_CTX MD5context;
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unsigned char MD5digest[LUTIL_MD5_BYTES], c;
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char buffer[LUTIL_MD5_BYTES*2];
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int i;
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if( passwd->bv_len != NS_MTA_MD5_PASSLEN ) {
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return 1;
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}
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/* hash credentials with salt */
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lutil_MD5Init(&MD5context);
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lutil_MD5Update(&MD5context,
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(const unsigned char *) &passwd->bv_val[32],
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32 );
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c = 0x59;
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lutil_MD5Update(&MD5context,
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(const unsigned char *) &c,
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1 );
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lutil_MD5Update(&MD5context,
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(const unsigned char *) cred->bv_val,
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cred->bv_len );
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c = 0xF7;
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lutil_MD5Update(&MD5context,
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(const unsigned char *) &c,
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1 );
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lutil_MD5Update(&MD5context,
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(const unsigned char *) &passwd->bv_val[32],
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32 );
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lutil_MD5Final(MD5digest, &MD5context);
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for( i=0; i < sizeof( MD5digest ); i++ ) {
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buffer[i+i] = "0123456789abcdef"[(MD5digest[i]>>4) & 0x0F];
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buffer[i+i+1] = "0123456789abcdef"[ MD5digest[i] & 0x0F];
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}
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/* compare */
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return memcmp((char *)passwd->bv_val,
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(char *)buffer, sizeof(buffer)) ? 1 : 0;
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}
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int init_module(int argc, char *argv[]) {
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return lutil_passwd_add( (struct berval *)&scheme, chk_ns_mta_md5, NULL );
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}
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