xref: /titanic_44/usr/src/lib/libgss/g_unseal.c (revision 6dfee4834394825da35b977ca71cdc965bc7b6a4)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1996,1997, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  *  glue routine gss_unseal
31  */
32 
33 #include <mechglueP.h>
34 
35 OM_uint32
36 gss_unseal(minor_status,
37 		context_handle,
38 		input_message_buffer,
39 		output_message_buffer,
40 		conf_state,
41 		qop_state)
42 
43 OM_uint32 *		minor_status;
44 gss_ctx_id_t		context_handle;
45 gss_buffer_t		input_message_buffer;
46 gss_buffer_t		output_message_buffer;
47 int *			conf_state;
48 int *			qop_state;
49 
50 {
51 /* EXPORT DELETE START */
52 	OM_uint32		status;
53 	gss_union_ctx_id_t	ctx;
54 	gss_mechanism		mech;
55 
56 	if (minor_status == NULL)
57 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
58 	*minor_status = 0;
59 
60 	if (context_handle == GSS_C_NO_CONTEXT)
61 		return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
62 
63 	if (GSS_EMPTY_BUFFER(input_message_buffer))
64 		return (GSS_S_CALL_INACCESSIBLE_READ);
65 
66 	if (output_message_buffer == NULL)
67 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
68 
69 	output_message_buffer->length = 0;
70 	output_message_buffer->value = NULL;
71 
72 	/*
73 	 * select the approprate underlying mechanism routine and
74 	 * call it.
75 	 */
76 
77 	ctx = (gss_union_ctx_id_t) context_handle;
78 	mech = __gss_get_mechanism(ctx->mech_type);
79 
80 	if (mech) {
81 		if (mech->gss_unseal)
82 			status = mech->gss_unseal(
83 						mech->context,
84 						minor_status,
85 						ctx->internal_ctx_id,
86 						input_message_buffer,
87 						output_message_buffer,
88 						conf_state,
89 						qop_state);
90 		else
91 			status = GSS_S_UNAVAILABLE;
92 
93 		return (status);
94 	}
95 
96 /* EXPORT DELETE END */
97 
98 	return (GSS_S_BAD_MECH);
99 }
100 
101 OM_uint32
102 gss_unwrap(minor_status,
103 		context_handle,
104 		input_message_buffer,
105 		output_message_buffer,
106 		conf_state,
107 		qop_state)
108 
109 OM_uint32 *		minor_status;
110 const gss_ctx_id_t	context_handle;
111 const gss_buffer_t	input_message_buffer;
112 gss_buffer_t		output_message_buffer;
113 int *			conf_state;
114 gss_qop_t *		qop_state;
115 
116 {
117 	return (gss_unseal(minor_status, (gss_ctx_id_t)context_handle,
118 			(gss_buffer_t)input_message_buffer,
119 			output_message_buffer, conf_state, (int *) qop_state));
120 }
121