crypto/external/bsd/heimdal/dist/lib/gssapi/mech/gss_names.c

   1 /*      $NetBSD: gss_names.c,v 1.1.1.2 2014/04/24 12:45:29 pettai Exp $ */
   2
   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: src/lib/libgssapi/gss_names.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  29  */
  30
  31 #include "mech_locl.h"
  32
  33 OM_uint32
  34 _gss_find_mn(OM_uint32 *minor_status, struct _gss_name *name, gss_OID mech,
  35              struct _gss_mechanism_name **output_mn)
  36 {
  37         OM_uint32 major_status;
  38         gssapi_mech_interface m;
  39         struct _gss_mechanism_name *mn;
  40
  41         *output_mn = NULL;
  42
  43         HEIM_SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
  44                 if (gss_oid_equal(mech, mn->gmn_mech_oid))
  45                         break;
  46         }
  47
  48         if (!mn) {
  49                 /*
  50                  * If this name is canonical (i.e. there is only an
  51                  * MN but it is from a different mech), give up now.
  52                  */
  53                 if (!name->gn_value.value)
  54                         return GSS_S_BAD_NAME;
  55
  56                 m = __gss_get_mechanism(mech);
  57                 if (!m)
  58                         return (GSS_S_BAD_MECH);
  59
  60                 mn = malloc(sizeof(struct _gss_mechanism_name));
  61                 if (!mn)
  62                         return GSS_S_FAILURE;
  63
  64                 major_status = m->gm_import_name(minor_status,
  65                     &name->gn_value,
  66                     (name->gn_type.elements
  67                         ? &name->gn_type : GSS_C_NO_OID),
  68                     &mn->gmn_name);
  69                 if (major_status != GSS_S_COMPLETE) {
  70                         _gss_mg_error(m, major_status, *minor_status);
  71                         free(mn);
  72                         return major_status;
  73                 }
  74
  75                 mn->gmn_mech = m;
  76                 mn->gmn_mech_oid = &m->gm_mech_oid;
  77                 HEIM_SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
  78         }
  79         *output_mn = mn;
  80         return 0;
  81 }
  82
  83
  84 /*
  85  * Make a name from an MN.
  86  */
  87 struct _gss_name *
  88 _gss_make_name(gssapi_mech_interface m, gss_name_t new_mn)
  89 {
  90         struct _gss_name *name;
  91         struct _gss_mechanism_name *mn;
  92
  93         name = malloc(sizeof(struct _gss_name));
  94         if (!name)
  95                 return (0);
  96         memset(name, 0, sizeof(struct _gss_name));
  97
  98         mn = malloc(sizeof(struct _gss_mechanism_name));
  99         if (!mn) {
 100                 free(name);
 101                 return (0);
 102         }
 103
 104         HEIM_SLIST_INIT(&name->gn_mn);
 105         mn->gmn_mech = m;
 106         mn->gmn_mech_oid = &m->gm_mech_oid;
 107         mn->gmn_name = new_mn;
 108         HEIM_SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
 109
 110         return (name);
 111 }
 112