lib/libgssapi/gss_inquire_mechs_for_name.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2005 Doug Rabson
   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  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  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  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  *      $FreeBSD$
  29  */
  30
  31 #include <gssapi/gssapi.h>
  32
  33 #include "mech_switch.h"
  34 #include "name.h"
  35
  36 OM_uint32
  37 gss_inquire_mechs_for_name(OM_uint32 *minor_status,
  38     const gss_name_t input_name,
  39     gss_OID_set *mech_types)
  40 {
  41         OM_uint32               major_status;
  42         struct _gss_name        *name = (struct _gss_name *) input_name;
  43         struct _gss_mech_switch *m;
  44         gss_OID_set             name_types;
  45         int                     present;
  46
  47         *minor_status = 0;
  48
  49         _gss_load_mech();
  50
  51         major_status = gss_create_empty_oid_set(minor_status, mech_types);
  52         if (major_status)
  53                 return (major_status);
  54
  55         /*
  56          * We go through all the loaded mechanisms and see if this
  57          * name's type is supported by the mechanism. If it is, add
  58          * the mechanism to the set.
  59          */
  60         SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  61                 major_status = gss_inquire_names_for_mech(minor_status,
  62                     &m->gm_mech_oid, &name_types);
  63                 if (major_status) {
  64                         gss_release_oid_set(minor_status, mech_types);
  65                         return (major_status);
  66                 }
  67                 gss_test_oid_set_member(minor_status,
  68                     &name->gn_type, name_types, &present);
  69                 gss_release_oid_set(minor_status, &name_types);
  70                 if (present) {
  71                         major_status = gss_add_oid_set_member(minor_status,
  72                             &m->gm_mech_oid, mech_types);
  73                         if (major_status) {
  74                                 gss_release_oid_set(minor_status, mech_types);
  75                                 return (major_status);
  76                         }
  77                 }
  78         }
  79
  80         return (GSS_S_COMPLETE);
  81 }