crypto/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
  35 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
  36 gss_set_cred_option (OM_uint32 *minor_status,
  37                      gss_cred_id_t *cred_handle,
  38                      const gss_OID object,
  39                      const gss_buffer_t value)
  40 {
  41         struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
  42         OM_uint32       major_status = GSS_S_COMPLETE;
  43         struct _gss_mechanism_cred *mc;
  44         int one_ok = 0;
  45
  46         *minor_status = 0;
  47
  48         _gss_load_mech();
  49
  50         if (cred == NULL) {
  51                 struct _gss_mech_switch *m;
  52
  53                 cred = malloc(sizeof(*cred));
  54                 if (cred == NULL)
  55                     return GSS_S_FAILURE;
  56
  57                 HEIM_SLIST_INIT(&cred->gc_mc);
  58
  59                 HEIM_SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  60
  61                         if (m->gm_mech.gm_set_cred_option == NULL)
  62                                 continue;
  63
  64                         mc = malloc(sizeof(*mc));
  65                         if (mc == NULL) {
  66                             *cred_handle = (gss_cred_id_t)cred;
  67                             gss_release_cred(minor_status, cred_handle);
  68                             *minor_status = ENOMEM;
  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                         HEIM_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                 HEIM_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_COMPLETE)
 106                                 one_ok = 1;
 107                         else
 108                                 _gss_mg_error(m, major_status, *minor_status);
 109
 110                 }
 111         }
 112         if (one_ok) {
 113                 *minor_status = 0;
 114                 return GSS_S_COMPLETE;
 115         }
 116         return major_status;
 117 }
 118