crypto/heimdal/lib/gssapi/mech/gss_inquire_cred_by_oid.c

   1 /*
   2  * Copyright (c) 2004, PADL Software Pty Ltd.
   3  * All rights reserved.
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   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * 3. Neither the name of PADL Software nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
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  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include "mech_locl.h"
  34
  35 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
  36 gss_inquire_cred_by_oid (OM_uint32 *minor_status,
  37                          const gss_cred_id_t cred_handle,
  38                          const gss_OID desired_object,
  39                          gss_buffer_set_t *data_set)
  40 {
  41         struct _gss_cred *cred = (struct _gss_cred *) cred_handle;
  42         OM_uint32               status = GSS_S_COMPLETE;
  43         struct _gss_mechanism_cred *mc;
  44         gssapi_mech_interface   m;
  45         gss_buffer_set_t set = GSS_C_NO_BUFFER_SET;
  46
  47         *minor_status = 0;
  48         *data_set = GSS_C_NO_BUFFER_SET;
  49
  50         if (cred == NULL)
  51                 return GSS_S_NO_CRED;
  52
  53         HEIM_SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
  54                 gss_buffer_set_t rset = GSS_C_NO_BUFFER_SET;
  55                 size_t i;
  56
  57                 m = mc->gmc_mech;
  58                 if (m == NULL) {
  59                         gss_release_buffer_set(minor_status, &set);
  60                         *minor_status = 0;
  61                         return GSS_S_BAD_MECH;
  62                 }
  63
  64                 if (m->gm_inquire_cred_by_oid == NULL)
  65                         continue;
  66
  67                 status = m->gm_inquire_cred_by_oid(minor_status,
  68                     mc->gmc_cred, desired_object, &rset);
  69                 if (status != GSS_S_COMPLETE)
  70                         continue;
  71
  72                 for (i = 0; i < rset->count; i++) {
  73                         status = gss_add_buffer_set_member(minor_status,
  74                              &rset->elements[i], &set);
  75                         if (status != GSS_S_COMPLETE)
  76                                 break;
  77                 }
  78                 gss_release_buffer_set(minor_status, &rset);
  79         }
  80         if (set == GSS_C_NO_BUFFER_SET)
  81                 status = GSS_S_FAILURE;
  82         *data_set = set;
  83         *minor_status = 0;
  84         return status;
  85 }
  86