xref: /minix3/crypto/external/bsd/heimdal/dist/lib/gssapi/mech/gss_wrap.c (revision ebfedea0ce5bbe81e252ddf32d732e40fb633fae)
1 /*	$NetBSD: gss_wrap.c,v 1.1.1.1 2011/04/13 18:14:47 elric 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_wrap.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
29  */
30 
31 #include "mech_locl.h"
32 
33 /**
34  * Wrap a message using either confidentiality (encryption +
35  * signature) or sealing (signature).
36  *
37  * @param minor_status minor status code.
38  * @param context_handle context handle.
39  * @param conf_req_flag if non zero, confidentiality is requestd.
40  * @param qop_req type of protection needed, in most cases it GSS_C_QOP_DEFAULT should be passed in.
41  * @param input_message_buffer messages to wrap
42  * @param conf_state returns non zero if confidentiality was honoured.
43  * @param output_message_buffer the resulting buffer, release with gss_release_buffer().
44  *
45  * @ingroup gssapi
46  */
47 
48 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_wrap(OM_uint32 * minor_status,const gss_ctx_id_t context_handle,int conf_req_flag,gss_qop_t qop_req,const gss_buffer_t input_message_buffer,int * conf_state,gss_buffer_t output_message_buffer)49 gss_wrap(OM_uint32 *minor_status,
50     const gss_ctx_id_t context_handle,
51     int conf_req_flag,
52     gss_qop_t qop_req,
53     const gss_buffer_t input_message_buffer,
54     int *conf_state,
55     gss_buffer_t output_message_buffer)
56 {
57 	struct _gss_context *ctx = (struct _gss_context *) context_handle;
58 	gssapi_mech_interface m;
59 
60 	if (conf_state)
61 	    *conf_state = 0;
62 	_mg_buffer_zero(output_message_buffer);
63 	if (ctx == NULL) {
64 	    *minor_status = 0;
65 	    return GSS_S_NO_CONTEXT;
66 	}
67 
68 	m = ctx->gc_mech;
69 
70 	return (m->gm_wrap(minor_status, ctx->gc_ctx,
71 		    conf_req_flag, qop_req, input_message_buffer,
72 		    conf_state, output_message_buffer));
73 }
74