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 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28/*
29 * Message Digesting Functions
30 * (as defined in PKCS#11 spec section 11.10)
31 */
32
33#include "metaGlobal.h"
34
35
36/*
37 * meta_DigestInit
38 *
39 */
40CK_RV
41meta_DigestInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism)
42{
43	CK_RV rv;
44	meta_session_t *session;
45
46	if (pMechanism == NULL)
47		return (CKR_ARGUMENTS_BAD);
48
49	rv = meta_handle2session(hSession, &session);
50	if (rv != CKR_OK)
51		return (rv);
52
53	rv = meta_operation_init_defer(CKF_DIGEST, session, pMechanism, NULL);
54
55	REFRELEASE(session);
56
57	return (rv);
58}
59
60
61/*
62 * meta_Digest
63 *
64 */
65CK_RV
66meta_Digest(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData, CK_ULONG ulDataLen,
67    CK_BYTE_PTR pDigest, CK_ULONG_PTR pulDigestLen)
68{
69	CK_RV rv;
70	meta_session_t *session;
71
72
73	if (pData == NULL || pulDigestLen == NULL)
74		return (CKR_ARGUMENTS_BAD);
75
76	rv = meta_handle2session(hSession, &session);
77	if (rv != CKR_OK)
78		return (rv);
79
80	rv = meta_do_operation(CKF_DIGEST, MODE_SINGLE, session, NULL,
81	    pData, ulDataLen, pDigest, pulDigestLen);
82
83	REFRELEASE(session);
84
85	return (rv);
86}
87
88
89/*
90 * meta_DigestUpdate
91 *
92 */
93CK_RV
94meta_DigestUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
95    CK_ULONG ulPartLen)
96{
97	CK_RV rv;
98	meta_session_t *session;
99
100
101	if (pPart == NULL)
102		return (CKR_ARGUMENTS_BAD);
103
104	rv = meta_handle2session(hSession, &session);
105	if (rv != CKR_OK)
106		return (rv);
107
108	rv = meta_do_operation(CKF_DIGEST, MODE_UPDATE, session, NULL,
109	    pPart, ulPartLen, NULL, NULL);
110
111	REFRELEASE(session);
112
113	return (rv);
114}
115
116
117/*
118 * meta_DigestKey
119 *
120 * NOTE: This function can fail under certain circumstances!
121 * Unlike the other crypto functions, we didn't get the key object
122 * when the operation was initialized with C_DigestInit().
123 * Thus, the slot we're using for the digest operation may
124 * not be the slot containing the key -- if the key is extractible we can
125 * deal with it, but if it's not the operation will FAIL.
126 */
127CK_RV
128meta_DigestKey(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE hKey)
129{
130	CK_RV rv;
131	meta_session_t *session;
132	meta_object_t *key;
133
134	rv = meta_handle2session(hSession, &session);
135	if (rv != CKR_OK)
136		return (rv);
137
138	rv = meta_handle2object(hKey, &key);
139	if (rv != CKR_OK) {
140		REFRELEASE(session);
141		return (rv);
142	}
143
144	/* meta_do_operation() will clone the key, if needed. */
145	rv = meta_do_operation(CKF_DIGEST, MODE_UPDATE_WITHKEY, session, key,
146	    NULL, 0, NULL, NULL);
147
148	OBJRELEASE(key);
149	REFRELEASE(session);
150
151	return (rv);
152}
153
154
155/*
156 * meta_DigestFinal
157 *
158 */
159CK_RV
160meta_DigestFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pDigest,
161    CK_ULONG_PTR pulDigestLen)
162{
163	CK_RV rv;
164	meta_session_t *session;
165
166	if (pulDigestLen == NULL)
167		return (CKR_ARGUMENTS_BAD);
168
169	rv = meta_handle2session(hSession, &session);
170	if (rv != CKR_OK)
171		return (rv);
172
173	rv = meta_do_operation(CKF_DIGEST, MODE_FINAL, session, NULL,
174	    NULL, 0, pDigest, pulDigestLen);
175
176	REFRELEASE(session);
177
178	return (rv);
179}
180