xref: /titanic_41/usr/src/lib/libgss/g_unseal.c (revision 2954adb080121c02025bb94537c313e6f51c9fd7)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 /*
26  *  glue routine gss_unseal
27  */
28 
29 #include <mechglueP.h>
30 #include "gssapiP_generic.h"
31 
32 OM_uint32
33 gss_unseal(minor_status,
34 		context_handle,
35 		input_message_buffer,
36 		output_message_buffer,
37 		conf_state,
38 		qop_state)
39 
40 OM_uint32 *		minor_status;
41 gss_ctx_id_t		context_handle;
42 gss_buffer_t		input_message_buffer;
43 gss_buffer_t		output_message_buffer;
44 int *			conf_state;
45 int *			qop_state;
46 
47 {
48 	OM_uint32		status;
49 	gss_union_ctx_id_t	ctx;
50 	gss_mechanism		mech;
51 
52 	if (minor_status != NULL)
53 		*minor_status = 0;
54 
55 	if (output_message_buffer != GSS_C_NO_BUFFER) {
56 		output_message_buffer->length = 0;
57 		output_message_buffer->value = NULL;
58 	}
59 
60 	if (minor_status == NULL)
61 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
62 
63 	if (context_handle == GSS_C_NO_CONTEXT)
64 		return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
65 
66 	if (input_message_buffer == GSS_C_NO_BUFFER ||
67 	    GSS_EMPTY_BUFFER(input_message_buffer))
68 		return (GSS_S_CALL_INACCESSIBLE_READ);
69 
70 	if (output_message_buffer == GSS_C_NO_BUFFER)
71 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
72 
73 	/*
74 	 * select the approprate underlying mechanism routine and
75 	 * call it.
76 	 */
77 
78 	ctx = (gss_union_ctx_id_t) context_handle;
79 	mech = __gss_get_mechanism(ctx->mech_type);
80 
81 	if (mech) {
82 		if (mech->gss_unseal) {
83 			status = mech->gss_unseal(
84 						mech->context,
85 						minor_status,
86 						ctx->internal_ctx_id,
87 						input_message_buffer,
88 						output_message_buffer,
89 						conf_state,
90 						qop_state);
91 			if (status != GSS_S_COMPLETE)
92 				map_error(minor_status, mech);
93 		} else
94 			status = GSS_S_UNAVAILABLE;
95 
96 		return (status);
97 	}
98 
99 	return (GSS_S_BAD_MECH);
100 }
101 
102 OM_uint32
103 gss_unwrap(minor_status,
104 		context_handle,
105 		input_message_buffer,
106 		output_message_buffer,
107 		conf_state,
108 		qop_state)
109 
110 OM_uint32 *		minor_status;
111 const gss_ctx_id_t	context_handle;
112 const gss_buffer_t	input_message_buffer;
113 gss_buffer_t		output_message_buffer;
114 int *			conf_state;
115 gss_qop_t *		qop_state;
116 
117 {
118 	return (gss_unseal(minor_status, (gss_ctx_id_t)context_handle,
119 			(gss_buffer_t)input_message_buffer,
120 			output_message_buffer, conf_state, (int *) qop_state));
121 }
122