diff options
Diffstat (limited to 'src/lib/krb5/krb/authdata_enc.c')
| -rw-r--r-- | src/lib/krb5/krb/authdata_enc.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/lib/krb5/krb/authdata_enc.c b/src/lib/krb5/krb/authdata_enc.c new file mode 100644 index 000000000000..3f7b38971c60 --- /dev/null +++ b/src/lib/krb5/krb/authdata_enc.c @@ -0,0 +1,146 @@ +/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ +/* lib/krb5/krb/authdata_enc.c */ +/* + * Copyright 1990 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. + */ +/* + * Copyright (c) 2006-2008, Novell, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * The copyright holder's name is not used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "k5-int.h" + +krb5_error_code KRB5_CALLCONV +krb5_encode_authdata_container(krb5_context context, + krb5_authdatatype type, + krb5_authdata *const*authdata, + krb5_authdata ***container) +{ + krb5_error_code code; + krb5_data *data; + krb5_authdata ad_datum; + krb5_authdata *ad_data[2]; + + *container = NULL; + + code = encode_krb5_authdata((krb5_authdata * const *)authdata, &data); + if (code) + return code; + + ad_datum.ad_type = type & AD_TYPE_FIELD_TYPE_MASK; + ad_datum.length = data->length; + ad_datum.contents = (unsigned char *)data->data; + + ad_data[0] = &ad_datum; + ad_data[1] = NULL; + + code = krb5_copy_authdata(context, ad_data, container); + + krb5_free_data(context, data); + + return code; +} + +krb5_error_code KRB5_CALLCONV +krb5_make_authdata_kdc_issued(krb5_context context, + const krb5_keyblock *key, + krb5_const_principal issuer, + krb5_authdata *const *authdata, + krb5_authdata ***ad_kdcissued) +{ + krb5_error_code code; + krb5_ad_kdcissued ad_kdci; + krb5_data *data; + krb5_cksumtype cksumtype; + krb5_authdata ad_datum; + krb5_authdata *ad_data[2]; + + *ad_kdcissued = NULL; + + ad_kdci.ad_checksum.contents = NULL; + ad_kdci.i_principal = (krb5_principal)issuer; + ad_kdci.elements = (krb5_authdata **)authdata; + + code = krb5int_c_mandatory_cksumtype(context, key->enctype, + &cksumtype); + if (code != 0) + return code; + + if (!krb5_c_is_keyed_cksum(cksumtype)) + return KRB5KRB_AP_ERR_INAPP_CKSUM; + + code = encode_krb5_authdata(ad_kdci.elements, &data); + if (code != 0) + return code; + + code = krb5_c_make_checksum(context, cksumtype, + key, KRB5_KEYUSAGE_AD_KDCISSUED_CKSUM, + data, &ad_kdci.ad_checksum); + if (code != 0) { + krb5_free_data(context, data); + return code; + } + + krb5_free_data(context, data); + + code = encode_krb5_ad_kdcissued(&ad_kdci, &data); + if (code != 0) + return code; + + ad_datum.ad_type = KRB5_AUTHDATA_KDC_ISSUED; + ad_datum.length = data->length; + ad_datum.contents = (unsigned char *)data->data; + + ad_data[0] = &ad_datum; + ad_data[1] = NULL; + + code = krb5_copy_authdata(context, ad_data, ad_kdcissued); + + krb5_free_data(context, data); + krb5_free_checksum_contents(context, &ad_kdci.ad_checksum); + + return code; +} |