source4/heimdal/lib/gssapi/mech/gss_set_cred_option.c

   1 /*
   2  * Copyright (c) 2004, PADL Software Pty Ltd.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   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
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  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 RCSID("$Id: gss_set_cred_option.c,v 1.7 2006/07/01 08:50:49 lha Exp $");
  35
  36 OM_uint32
  37 gss_set_cred_option (OM_uint32 *minor_status,
  38                      gss_cred_id_t *cred_handle,
  39                      const gss_OID object,
  40                      const gss_buffer_t value)
  41 {
  42         struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
  43         OM_uint32       major_status = GSS_S_COMPLETE;
  44         struct _gss_mechanism_cred *mc;
  45         int one_ok = 0;
  46
  47         *minor_status = 0;
  48
  49         _gss_load_mech();
  50
  51         if (cred == NULL) {
  52                 struct _gss_mech_switch *m;
  53
  54                 cred = malloc(sizeof(*cred));
  55                 if (cred == NULL)
  56                     return GSS_S_FAILURE;
  57
  58                 cred->gc_usage = GSS_C_BOTH; /* XXX */
  59                 SLIST_INIT(&cred->gc_mc);
  60
  61                 SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  62
  63                         if (m->gm_mech.gm_set_cred_option == NULL)
  64                                 continue;
  65
  66                         mc = malloc(sizeof(*mc));
  67                         if (mc == NULL) {
  68                             /* XXX free the other mc's */
  69                             return GSS_S_FAILURE;
  70                         }
  71
  72                         mc->gmc_mech = &m->gm_mech;
  73                         mc->gmc_mech_oid = &m->gm_mech_oid;
  74                         mc->gmc_cred = GSS_C_NO_CREDENTIAL;
  75
  76                         major_status = m->gm_mech.gm_set_cred_option(
  77                             minor_status, &mc->gmc_cred, object, value);
  78
  79                         if (major_status) {
  80                                 free(mc);
  81                                 continue;
  82                         }
  83                         one_ok = 1;
  84                         SLIST_INSERT_HEAD(&cred->gc_mc, mc, gmc_link);
  85                 }
  86                 *cred_handle = (gss_cred_id_t)cred;
  87                 if (!one_ok) {
  88                         OM_uint32 junk;
  89                         gss_release_cred(&junk, cred_handle);
  90                 }
  91         } else {
  92                 gssapi_mech_interface   m;
  93
  94                 SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
  95                         m = mc->gmc_mech;
  96
  97                         if (m == NULL)
  98                                 return GSS_S_BAD_MECH;
  99
 100                         if (m->gm_set_cred_option == NULL)
 101                                 continue;
 102
 103                         major_status = m->gm_set_cred_option(minor_status,
 104                             &mc->gmc_cred, object, value);
 105                         if (major_status == GSS_S_BAD_MECH)
 106                                 one_ok = 1;
 107                 }
 108         }
 109         if (one_ok) {
 110                 *minor_status = 0;
 111                 return GSS_S_COMPLETE;
 112         }
 113         return major_status;
 114 }
 115