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 "gsskrb5_locl.h"
35
36 OM_uint32 GSSAPI_CALLCONV
_gsskrb5_delete_sec_context(OM_uint32 * minor_status,gss_ctx_id_t * context_handle,gss_buffer_t output_token)37 _gsskrb5_delete_sec_context(OM_uint32 * minor_status,
38 gss_ctx_id_t * context_handle,
39 gss_buffer_t output_token)
40 {
41 krb5_context context;
42 gsskrb5_ctx ctx;
43
44 GSSAPI_KRB5_INIT (&context);
45
46 *minor_status = 0;
47
48 if (output_token) {
49 output_token->length = 0;
50 output_token->value = NULL;
51 }
52
53 if (*context_handle == GSS_C_NO_CONTEXT)
54 return GSS_S_COMPLETE;
55
56 ctx = (gsskrb5_ctx) *context_handle;
57 *context_handle = GSS_C_NO_CONTEXT;
58
59 HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
60
61 krb5_auth_con_free (context, ctx->auth_context);
62 krb5_auth_con_free (context, ctx->deleg_auth_context);
63 if (ctx->kcred)
64 krb5_free_creds(context, ctx->kcred);
65 if(ctx->source)
66 krb5_free_principal (context, ctx->source);
67 if(ctx->target)
68 krb5_free_principal (context, ctx->target);
69 if (ctx->ticket)
70 krb5_free_ticket (context, ctx->ticket);
71 if(ctx->order)
72 _gssapi_msg_order_destroy(&ctx->order);
73 if (ctx->service_keyblock)
74 krb5_free_keyblock (context, ctx->service_keyblock);
75 krb5_data_free(&ctx->fwd_data);
76 if (ctx->crypto)
77 krb5_crypto_destroy(context, ctx->crypto);
78
79 HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
80 HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex);
81 memset(ctx, 0, sizeof(*ctx));
82 free (ctx);
83 return GSS_S_COMPLETE;
84 }
85