lib/libgssapi/gss_set_cred_option.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2004, PADL Software Pty Ltd.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * 3. Neither the name of PADL Software nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34 /* RCSID("$Id: gss_set_cred_option.c 21126 2007-06-18 20:19:59Z lha $"); */
  35
  36 #include <gssapi/gssapi.h>
  37 #include <stdlib.h>
  38 #include <errno.h>
  39
  40 #include "mech_switch.h"
  41 #include "cred.h"
  42
  43 OM_uint32
  44 gss_set_cred_option (OM_uint32 *minor_status,
  45                      gss_cred_id_t *cred_handle,
  46                      const gss_OID object,
  47                      const gss_buffer_t value)
  48 {
  49         struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
  50         OM_uint32       major_status = GSS_S_COMPLETE;
  51         struct _gss_mechanism_cred *mc;
  52         int one_ok = 0;
  53
  54         *minor_status = 0;
  55
  56         _gss_load_mech();
  57
  58         if (cred == NULL) {
  59                 struct _gss_mech_switch *m;
  60
  61                 cred = malloc(sizeof(*cred));
  62                 if (cred == NULL)
  63                     return GSS_S_FAILURE;
  64
  65                 SLIST_INIT(&cred->gc_mc);
  66
  67                 SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  68
  69                         if (m->gm_set_cred_option == NULL)
  70                                 continue;
  71
  72                         mc = malloc(sizeof(*mc));
  73                         if (mc == NULL) {
  74                             *cred_handle = (gss_cred_id_t)cred;
  75                             gss_release_cred(minor_status, cred_handle);
  76                             *minor_status = ENOMEM;
  77                             return GSS_S_FAILURE;
  78                         }
  79
  80                         mc->gmc_mech = m;
  81                         mc->gmc_mech_oid = &m->gm_mech_oid;
  82                         mc->gmc_cred = GSS_C_NO_CREDENTIAL;
  83
  84                         major_status = m->gm_set_cred_option(
  85                             minor_status, &mc->gmc_cred, object, value);
  86
  87                         if (major_status) {
  88                                 free(mc);
  89                                 continue;
  90                         }
  91                         one_ok = 1;
  92                         SLIST_INSERT_HEAD(&cred->gc_mc, mc, gmc_link);
  93                 }
  94                 *cred_handle = (gss_cred_id_t)cred;
  95                 if (!one_ok) {
  96                         OM_uint32 junk;
  97                         gss_release_cred(&junk, cred_handle);
  98                 }
  99         } else {
 100                 struct _gss_mech_switch *m;
 101
 102                 SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
 103                         m = mc->gmc_mech;
 104
 105                         if (m == NULL)
 106                                 return GSS_S_BAD_MECH;
 107
 108                         if (m->gm_set_cred_option == NULL)
 109                                 continue;
 110
 111                         major_status = m->gm_set_cred_option(minor_status,
 112                             &mc->gmc_cred, object, value);
 113                         if (major_status == GSS_S_COMPLETE)
 114                                 one_ok = 1;
 115                         else
 116                                 _gss_mg_error(m, major_status, *minor_status);
 117
 118                 }
 119         }
 120         if (one_ok) {
 121                 *minor_status = 0;
 122                 return (GSS_S_COMPLETE);
 123         }
 124         return (major_status);
 125 }
 126