lib/libgssapi/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 /* $FreeBSD$ */
  33 /* RCSID("$Id: gss_set_cred_option.c 21126 2007-06-18 20:19:59Z lha $"); */
  34
  35 #include <gssapi/gssapi.h>
  36 #include <stdlib.h>
  37 #include <errno.h>
  38
  39 #include "mech_switch.h"
  40 #include "cred.h"
  41
  42 OM_uint32
  43 gss_set_cred_option (OM_uint32 *minor_status,
  44                      gss_cred_id_t *cred_handle,
  45                      const gss_OID object,
  46                      const gss_buffer_t value)
  47 {
  48         struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
  49         OM_uint32       major_status = GSS_S_COMPLETE;
  50         struct _gss_mechanism_cred *mc;
  51         int one_ok = 0;
  52
  53         *minor_status = 0;
  54
  55         _gss_load_mech();
  56
  57         if (cred == NULL) {
  58                 struct _gss_mech_switch *m;
  59
  60                 cred = malloc(sizeof(*cred));
  61                 if (cred == NULL)
  62                     return GSS_S_FAILURE;
  63
  64                 SLIST_INIT(&cred->gc_mc);
  65
  66                 SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  67
  68                         if (m->gm_set_cred_option == NULL)
  69                                 continue;
  70
  71                         mc = malloc(sizeof(*mc));
  72                         if (mc == NULL) {
  73                             *cred_handle = (gss_cred_id_t)cred;
  74                             gss_release_cred(minor_status, cred_handle);
  75                             *minor_status = ENOMEM;
  76                             return GSS_S_FAILURE;
  77                         }
  78
  79                         mc->gmc_mech = m;
  80                         mc->gmc_mech_oid = &m->gm_mech_oid;
  81                         mc->gmc_cred = GSS_C_NO_CREDENTIAL;
  82
  83                         major_status = m->gm_set_cred_option(
  84                             minor_status, &mc->gmc_cred, object, value);
  85
  86                         if (major_status) {
  87                                 free(mc);
  88                                 continue;
  89                         }
  90                         one_ok = 1;
  91                         SLIST_INSERT_HEAD(&cred->gc_mc, mc, gmc_link);
  92                 }
  93                 *cred_handle = (gss_cred_id_t)cred;
  94                 if (!one_ok) {
  95                         OM_uint32 junk;
  96                         gss_release_cred(&junk, cred_handle);
  97                 }
  98         } else {
  99                 struct _gss_mech_switch *m;
 100
 101                 SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
 102                         m = mc->gmc_mech;
 103
 104                         if (m == NULL)
 105                                 return GSS_S_BAD_MECH;
 106
 107                         if (m->gm_set_cred_option == NULL)
 108                                 continue;
 109
 110                         major_status = m->gm_set_cred_option(minor_status,
 111                             &mc->gmc_cred, object, value);
 112                         if (major_status == GSS_S_COMPLETE)
 113                                 one_ok = 1;
 114                         else
 115                                 _gss_mg_error(m, major_status, *minor_status);
 116
 117                 }
 118         }
 119         if (one_ok) {
 120                 *minor_status = 0;
 121                 return (GSS_S_COMPLETE);
 122         }
 123         return (major_status);
 124 }
 125