1 /* $NetBSD: delete_sec_context.c,v 1.3 2023/06/19 21:41:43 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 "gsskrb5_locl.h"
37
38 OM_uint32 GSSAPI_CALLCONV
_gsskrb5_delete_sec_context(OM_uint32 * minor_status,gss_ctx_id_t * context_handle,gss_buffer_t output_token)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 if (ctx->ccache && (ctx->more_flags & CLOSE_CCACHE))
81 krb5_cc_close(context, ctx->ccache);
82
83 HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
84 HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex);
85 memset(ctx, 0, sizeof(*ctx));
86 free (ctx);
87 return GSS_S_COMPLETE;
88 }
89