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 /* $FreeBSD$ */
  35 /* RCSID("$Id: gss_set_cred_option.c 21126 2007-06-18 20:19:59Z lha $"); */
  36
  37 #include <gssapi/gssapi.h>
  38 #include <stdlib.h>
  39 #include <errno.h>
  40
  41 #include "mech_switch.h"
  42 #include "cred.h"
  43
  44 OM_uint32
  45 gss_set_cred_option (OM_uint32 *minor_status,
  46                      gss_cred_id_t *cred_handle,
  47                      const gss_OID object,
  48                      const gss_buffer_t value)
  49 {
  50         struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
  51         OM_uint32       major_status = GSS_S_COMPLETE;
  52         struct _gss_mechanism_cred *mc;
  53         int one_ok = 0;
  54
  55         *minor_status = 0;
  56
  57         _gss_load_mech();
  58
  59         if (cred == NULL) {
  60                 struct _gss_mech_switch *m;
  61
  62                 cred = malloc(sizeof(*cred));
  63                 if (cred == NULL)
  64                     return GSS_S_FAILURE;
  65
  66                 SLIST_INIT(&cred->gc_mc);
  67
  68                 SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  69
  70                         if (m->gm_set_cred_option == NULL)
  71                                 continue;
  72
  73                         mc = malloc(sizeof(*mc));
  74                         if (mc == NULL) {
  75                             *cred_handle = (gss_cred_id_t)cred;
  76                             gss_release_cred(minor_status, cred_handle);
  77                             *minor_status = ENOMEM;
  78                             return GSS_S_FAILURE;
  79                         }
  80
  81                         mc->gmc_mech = m;
  82                         mc->gmc_mech_oid = &m->gm_mech_oid;
  83                         mc->gmc_cred = GSS_C_NO_CREDENTIAL;
  84
  85                         major_status = m->gm_set_cred_option(
  86                             minor_status, &mc->gmc_cred, object, value);
  87
  88                         if (major_status) {
  89                                 free(mc);
  90                                 continue;
  91                         }
  92                         one_ok = 1;
  93                         SLIST_INSERT_HEAD(&cred->gc_mc, mc, gmc_link);
  94                 }
  95                 *cred_handle = (gss_cred_id_t)cred;
  96                 if (!one_ok) {
  97                         OM_uint32 junk;
  98                         gss_release_cred(&junk, cred_handle);
  99                 }
 100         } else {
 101                 struct _gss_mech_switch *m;
 102
 103                 SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
 104                         m = mc->gmc_mech;
 105
 106                         if (m == NULL)
 107                                 return GSS_S_BAD_MECH;
 108
 109                         if (m->gm_set_cred_option == NULL)
 110                                 continue;
 111
 112                         major_status = m->gm_set_cred_option(minor_status,
 113                             &mc->gmc_cred, object, value);
 114                         if (major_status == GSS_S_COMPLETE)
 115                                 one_ok = 1;
 116                         else
 117                                 _gss_mg_error(m, major_status, *minor_status);
 118
 119                 }
 120         }
 121         if (one_ok) {
 122                 *minor_status = 0;
 123                 return (GSS_S_COMPLETE);
 124         }
 125         return (major_status);
 126 }
 127