1/*
2 * Copyright (c) 1997 - 2003 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 "ntlm.h"
35
36OM_uint32 _gss_ntlm_delete_sec_context
37           (OM_uint32 * minor_status,
38            gss_ctx_id_t * context_handle,
39            gss_buffer_t output_token
40           )
41{
42    if (context_handle) {
43	ntlm_ctx ctx = (ntlm_ctx)*context_handle;
44	gss_cred_id_t cred = (gss_cred_id_t)ctx->client;
45	size_t i;
46
47	*context_handle = GSS_C_NO_CONTEXT;
48
49	if (ctx->targetinfo.data != NULL)
50	    free(ctx->targetinfo.data);
51
52	if (ctx->ti.servername)
53	    heim_ntlm_free_targetinfo(&ctx->ti);
54
55	for (i = 0; i < ctx->num_backends; i++) {
56	    if (ctx->backends[i].ctx == NULL)
57		continue;
58	    ctx->backends[i].interface->nsi_destroy(minor_status,
59						    ctx->backends[i].ctx);
60	}
61	if (ctx->backends)
62	    free(ctx->backends);
63
64	if (ctx->srcname)
65	    _gss_ntlm_release_name(NULL, &ctx->srcname);
66	if (ctx->targetname)
67	    _gss_ntlm_release_name(NULL, &ctx->targetname);
68	if (ctx->clientsuppliedtargetname)
69	    free(ctx->clientsuppliedtargetname);
70
71
72	_gss_ntlm_destroy_crypto(ctx);
73
74	krb5_data_free(&ctx->sessionkey);
75	krb5_data_free(&ctx->type1);
76	krb5_data_free(&ctx->type2);
77	krb5_data_free(&ctx->type3);
78	gss_release_buffer(minor_status, &ctx->pac);
79
80	_gss_ntlm_release_cred(NULL, &cred);
81
82	memset(ctx, 0, sizeof(*ctx));
83	free(ctx);
84    }
85    if (output_token) {
86	output_token->length = 0;
87	output_token->value  = NULL;
88    }
89
90    *minor_status = 0;
91    return GSS_S_COMPLETE;
92}
93