crypto/external/bsd/heimdal/dist/lib/gssapi/krb5/delete_sec_context.c

   1 /*      $NetBSD: delete_sec_context.c,v 1.1.1.1 2011/04/13 18:14:45 elric Exp $ */
   2
   3 /*
   4  * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "gsskrb5_locl.h"
  37
  38 OM_uint32 GSSAPI_CALLCONV
  39 _gsskrb5_delete_sec_context(OM_uint32 * minor_status,
  40                             gss_ctx_id_t * context_handle,
  41                             gss_buffer_t output_token)
  42 {
  43     krb5_context context;
  44     gsskrb5_ctx ctx;
  45
  46     GSSAPI_KRB5_INIT (&context);
  47
  48     *minor_status = 0;
  49
  50     if (output_token) {
  51         output_token->length = 0;
  52         output_token->value  = NULL;
  53     }
  54
  55     if (*context_handle == GSS_C_NO_CONTEXT)
  56         return GSS_S_COMPLETE;
  57
  58     ctx = (gsskrb5_ctx) *context_handle;
  59     *context_handle = GSS_C_NO_CONTEXT;
  60
  61     HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
  62
  63     krb5_auth_con_free (context, ctx->auth_context);
  64     krb5_auth_con_free (context, ctx->deleg_auth_context);
  65     if (ctx->kcred)
  66         krb5_free_creds(context, ctx->kcred);
  67     if(ctx->source)
  68         krb5_free_principal (context, ctx->source);
  69     if(ctx->target)
  70         krb5_free_principal (context, ctx->target);
  71     if (ctx->ticket)
  72         krb5_free_ticket (context, ctx->ticket);
  73     if(ctx->order)
  74         _gssapi_msg_order_destroy(&ctx->order);
  75     if (ctx->service_keyblock)
  76         krb5_free_keyblock (context, ctx->service_keyblock);
  77     krb5_data_free(&ctx->fwd_data);
  78     if (ctx->crypto)
  79         krb5_crypto_destroy(context, ctx->crypto);
  80
  81     HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
  82     HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex);
  83     memset(ctx, 0, sizeof(*ctx));
  84     free (ctx);
  85     return GSS_S_COMPLETE;
  86 }