lib/gssapi/mech/gss_names.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: src/lib/libgssapi/gss_names.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28
  29 #include "mech_locl.h"
  30 RCSID("$Id$");
  31
  32 OM_uint32
  33 _gss_find_mn(OM_uint32 *minor_status, struct _gss_name *name, gss_OID mech,
  34              struct _gss_mechanism_name **output_mn)
  35 {
  36         OM_uint32 major_status;
  37         gssapi_mech_interface m;
  38         struct _gss_mechanism_name *mn;
  39
  40         *output_mn = NULL;
  41
  42         SLIST_FOREACH(mn, &name->gn_mn, gmn_link) {
  43                 if (gss_oid_equal(mech, mn->gmn_mech_oid))
  44                         break;
  45         }
  46
  47         if (!mn) {
  48                 /*
  49                  * If this name is canonical (i.e. there is only an
  50                  * MN but it is from a different mech), give up now.
  51                  */
  52                 if (!name->gn_value.value)
  53                         return GSS_S_BAD_NAME;
  54
  55                 m = __gss_get_mechanism(mech);
  56                 if (!m)
  57                         return (GSS_S_BAD_MECH);
  58
  59                 mn = malloc(sizeof(struct _gss_mechanism_name));
  60                 if (!mn)
  61                         return GSS_S_FAILURE;
  62
  63                 major_status = m->gm_import_name(minor_status,
  64                     &name->gn_value,
  65                     (name->gn_type.elements
  66                         ? &name->gn_type : GSS_C_NO_OID),
  67                     &mn->gmn_name);
  68                 if (major_status != GSS_S_COMPLETE) {
  69                         _gss_mg_error(m, major_status, *minor_status);
  70                         free(mn);
  71                         return major_status;
  72                 }
  73
  74                 mn->gmn_mech = m;
  75                 mn->gmn_mech_oid = &m->gm_mech_oid;
  76                 SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
  77         }
  78         *output_mn = mn;
  79         return 0;
  80 }
  81
  82
  83 /*
  84  * Make a name from an MN.
  85  */
  86 struct _gss_name *
  87 _gss_make_name(gssapi_mech_interface m, gss_name_t new_mn)
  88 {
  89         struct _gss_name *name;
  90         struct _gss_mechanism_name *mn;
  91
  92         name = malloc(sizeof(struct _gss_name));
  93         if (!name)
  94                 return (0);
  95         memset(name, 0, sizeof(struct _gss_name));
  96
  97         mn = malloc(sizeof(struct _gss_mechanism_name));
  98         if (!mn) {
  99                 free(name);
 100                 return (0);
 101         }
 102
 103         SLIST_INIT(&name->gn_mn);
 104         mn->gmn_mech = m;
 105         mn->gmn_mech_oid = &m->gm_mech_oid;
 106         mn->gmn_name = new_mn;
 107         SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
 108
 109         return (name);
 110 }
 111