lib/libgssapi/gss_inquire_mechs_for_name.c

   1 /*-
   2  * Copyright (c) 2005 Doug Rabson
   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  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD$
  27  */
  28
  29 #include <gssapi/gssapi.h>
  30
  31 #include "mech_switch.h"
  32 #include "name.h"
  33
  34 OM_uint32
  35 gss_inquire_mechs_for_name(OM_uint32 *minor_status,
  36     const gss_name_t input_name,
  37     gss_OID_set *mech_types)
  38 {
  39         OM_uint32               major_status;
  40         struct _gss_name        *name = (struct _gss_name *) input_name;
  41         struct _gss_mech_switch *m;
  42         gss_OID_set             name_types;
  43         int                     present;
  44
  45         *minor_status = 0;
  46
  47         major_status = gss_create_empty_oid_set(minor_status, mech_types);
  48         if (major_status)
  49                 return (major_status);
  50
  51         /*
  52          * We go through all the loaded mechanisms and see if this
  53          * name's type is supported by the mechanism. If it is, add
  54          * the mechanism to the set.
  55          */
  56         SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  57                 major_status = gss_inquire_names_for_mech(minor_status,
  58                     &m->gm_mech_oid, &name_types);
  59                 if (major_status) {
  60                         gss_release_oid_set(minor_status, mech_types);
  61                         return (major_status);
  62                 }
  63                 gss_test_oid_set_member(minor_status,
  64                     &name->gn_type, name_types, &present);
  65                 gss_release_oid_set(minor_status, &name_types);
  66                 if (present) {
  67                         major_status = gss_add_oid_set_member(minor_status,
  68                             &m->gm_mech_oid, mech_types);
  69                         if (major_status) {
  70                                 gss_release_oid_set(minor_status, mech_types);
  71                                 return (major_status);
  72                         }
  73                 }
  74         }
  75
  76         return (GSS_S_COMPLETE);
  77 }