delete_sec_context.c revision 225736 
1/*
2 * Copyright (c) 1997 - 2003 Kungliga Tekniska H�gskolan
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 "krb5/gsskrb5_locl.h"
35
36RCSID("$Id: delete_sec_context.c 19031 2006-11-13 18:02:57Z lha $");
37
38OM_uint32
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    if(ctx->source)
65	krb5_free_principal (context, ctx->source);
66    if(ctx->target)
67	krb5_free_principal (context, ctx->target);
68    if (ctx->ticket)
69	krb5_free_ticket (context, ctx->ticket);
70    if(ctx->order)
71	_gssapi_msg_order_destroy(&ctx->order);
72    if (ctx->service_keyblock)
73	krb5_free_keyblock (context, ctx->service_keyblock);
74    krb5_data_free(&ctx->fwd_data);
75
76    HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
77    HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex);
78    memset(ctx, 0, sizeof(*ctx));
79    free (ctx);
80    return GSS_S_COMPLETE;
81}
82