1 /* $NetBSD: gss_export_sec_context.c,v 1.1.1.2 2014/04/24 12:45:29 pettai Exp $ */
2
3 /*-
4 * Copyright (c) 2005 Doug Rabson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: src/lib/libgssapi/gss_export_sec_context.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
29 */
30
31 #include "mech_locl.h"
32
33 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_export_sec_context(OM_uint32 * minor_status,gss_ctx_id_t * context_handle,gss_buffer_t interprocess_token)34 gss_export_sec_context(OM_uint32 *minor_status,
35 gss_ctx_id_t *context_handle,
36 gss_buffer_t interprocess_token)
37 {
38 OM_uint32 major_status;
39 struct _gss_context *ctx = (struct _gss_context *) *context_handle;
40 gssapi_mech_interface m = ctx->gc_mech;
41 gss_buffer_desc buf;
42
43 _mg_buffer_zero(interprocess_token);
44
45 major_status = m->gm_export_sec_context(minor_status,
46 &ctx->gc_ctx, &buf);
47
48 if (major_status == GSS_S_COMPLETE) {
49 unsigned char *p;
50
51 free(ctx);
52 *context_handle = GSS_C_NO_CONTEXT;
53 interprocess_token->length = buf.length
54 + 2 + m->gm_mech_oid.length;
55 interprocess_token->value = malloc(interprocess_token->length);
56 if (!interprocess_token->value) {
57 /*
58 * We are in trouble here - the context is
59 * already gone. This is allowed as long as we
60 * set the caller's context_handle to
61 * GSS_C_NO_CONTEXT, which we did above.
62 * Return GSS_S_FAILURE.
63 */
64 _mg_buffer_zero(interprocess_token);
65 *minor_status = ENOMEM;
66 return (GSS_S_FAILURE);
67 }
68 p = interprocess_token->value;
69 p[0] = m->gm_mech_oid.length >> 8;
70 p[1] = m->gm_mech_oid.length;
71 memcpy(p + 2, m->gm_mech_oid.elements, m->gm_mech_oid.length);
72 memcpy(p + 2 + m->gm_mech_oid.length, buf.value, buf.length);
73 gss_release_buffer(minor_status, &buf);
74 } else {
75 _gss_mg_error(m, major_status, *minor_status);
76 }
77
78 return (major_status);
79 }
80