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