source4/heimdal/lib/gssapi/krb5/inquire_cred_by_mech.c

   1 /*
   2  * Copyright (c) 2003 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "krb5/gsskrb5_locl.h"
  35
  36 RCSID("$Id: inquire_cred_by_mech.c,v 1.4 2006/10/07 22:15:08 lha Exp $");
  37
  38 OM_uint32 _gsskrb5_inquire_cred_by_mech (
  39     OM_uint32 * minor_status,
  40         const gss_cred_id_t cred_handle,
  41         const gss_OID mech_type,
  42         gss_name_t * name,
  43         OM_uint32 * initiator_lifetime,
  44         OM_uint32 * acceptor_lifetime,
  45         gss_cred_usage_t * cred_usage
  46     )
  47 {
  48     OM_uint32 ret;
  49     OM_uint32 lifetime;
  50
  51     if (gss_oid_equal(mech_type, GSS_C_NO_OID) == 0 &&
  52         gss_oid_equal(mech_type, GSS_KRB5_MECHANISM) == 0) {
  53         *minor_status = EINVAL;
  54         return GSS_S_BAD_MECH;
  55     }
  56
  57     ret = _gsskrb5_inquire_cred (minor_status,
  58                                  cred_handle,
  59                                  name,
  60                                  &lifetime,
  61                                  cred_usage,
  62                                  NULL);
  63
  64     if (ret == 0 && cred_handle != GSS_C_NO_CREDENTIAL) {
  65         gsskrb5_cred cred = (gsskrb5_cred)cred_handle;
  66         gss_cred_usage_t usage;
  67
  68         HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
  69         usage = cred->usage;
  70         HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
  71
  72         if (initiator_lifetime) {
  73             if (usage == GSS_C_INITIATE || usage == GSS_C_BOTH)
  74                 *initiator_lifetime = lifetime;
  75         }
  76         if (acceptor_lifetime) {
  77             if (usage == GSS_C_ACCEPT || usage == GSS_C_BOTH)
  78                 *acceptor_lifetime = lifetime;
  79         }
  80     }
  81
  82     return ret;
  83 }