crypto/dist/heimdal/kdc/windc.c

   1 /*
   2  * Copyright (c) 2007 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "kdc_locl.h"
  35
  36 __RCSID("$Heimdal: windc.c 20559 2007-04-24 16:00:07Z lha $"
  37         "$NetBSD$");
  38
  39 static krb5plugin_windc_ftable *windcft;
  40 static void *windcctx;
  41
  42 /*
  43  * Pick the first WINDC module that we find.
  44  */
  45
  46 krb5_error_code
  47 krb5_kdc_windc_init(krb5_context context)
  48 {
  49     struct krb5_plugin *list = NULL, *e;
  50     krb5_error_code ret;
  51
  52     ret = _krb5_plugin_find(context, PLUGIN_TYPE_DATA, "windc", &list);
  53     if(ret != 0 || list == NULL)
  54         return 0;
  55
  56     for (e = list; e != NULL; e = _krb5_plugin_get_next(e)) {
  57
  58         windcft = _krb5_plugin_get_symbol(e);
  59         if (windcft->minor_version < KRB5_WINDC_PLUGING_MINOR)
  60             continue;
  61
  62         (*windcft->init)(context, &windcctx);
  63         break;
  64     }
  65     if (e == NULL) {
  66         _krb5_plugin_free(list);
  67         krb5_set_error_string(context, "Did not find any WINDC plugin");
  68         windcft = NULL;
  69         return ENOENT;
  70     }
  71
  72     return 0;
  73 }
  74
  75
  76 krb5_error_code
  77 _kdc_pac_generate(krb5_context context,
  78                   hdb_entry_ex *client,
  79                   krb5_pac *pac)
  80 {
  81     *pac = NULL;
  82     if (windcft == NULL)
  83         return 0;
  84     return (windcft->pac_generate)(windcctx, context, client, pac);
  85 }
  86
  87 krb5_error_code
  88 _kdc_pac_verify(krb5_context context,
  89                 const krb5_principal client_principal,
  90                 hdb_entry_ex *client,
  91                 hdb_entry_ex *server,
  92                 krb5_pac *pac)
  93 {
  94     if (windcft == NULL) {
  95         krb5_set_error_string(context, "Can't verify PAC, no function");
  96         return EINVAL;
  97     }
  98     return (windcft->pac_verify)(windcctx, context,
  99                                  client_principal, client, server, pac);
 100 }
 101
 102 krb5_error_code
 103 _kdc_windc_client_access(krb5_context context,
 104                          struct hdb_entry_ex *client,
 105                          KDC_REQ *req)
 106 {
 107     if (windcft == NULL)
 108         return 0;
 109     return (windcft->client_access)(windcctx, context, client, req);
 110 }