xref: /netbsd-src/crypto/external/bsd/heimdal/dist/lib/gssapi/ntlm/delete_sec_context.c (revision d3273b5b76f5afaafe308cead5511dbb8df8c5e9)
1 /*	$NetBSD: delete_sec_context.c,v 1.2 2017/01/28 21:31:46 christos 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 "ntlm.h"
37 
_gss_ntlm_delete_sec_context(OM_uint32 * minor_status,gss_ctx_id_t * context_handle,gss_buffer_t output_token)38 OM_uint32 GSSAPI_CALLCONV _gss_ntlm_delete_sec_context
39            (OM_uint32 * minor_status,
40             gss_ctx_id_t * context_handle,
41             gss_buffer_t output_token
42            )
43 {
44     if (context_handle) {
45 	ntlm_ctx ctx = (ntlm_ctx)*context_handle;
46 	gss_cred_id_t cred = (gss_cred_id_t)ctx->client;
47 
48 	*context_handle = GSS_C_NO_CONTEXT;
49 
50 	if (ctx->server)
51 	    (*ctx->server->nsi_destroy)(minor_status, ctx->ictx);
52 
53 	_gss_ntlm_release_cred(NULL, &cred);
54 
55 	memset(ctx, 0, sizeof(*ctx));
56 	free(ctx);
57     }
58     if (output_token) {
59 	output_token->length = 0;
60 	output_token->value  = NULL;
61     }
62 
63     *minor_status = 0;
64     return GSS_S_COMPLETE;
65 }
66