/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <security/cryptoki.h>
#include "pkcs11Global.h"
#include "pkcs11Conf.h"
#include "pkcs11Session.h"
#include "pkcs11Slot.h"

/*
 * C_DigestInit will verify that the session handle is valid within
 * the framework, that the mechanism is not disabled for the slot
 * associated with this session, and then redirect to the underlying
 * provider.  Policy is only checked for C_DigestInit, since it is
 * required to be called before C_Digest and C_DigestUpdate.
 */
CK_RV
C_DigestInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism)
{

        CK_RV rv;
        pkcs11_session_t *sessp;
        CK_SLOT_ID slotid;

        /* Check for a fastpath */
        if (purefastpath || policyfastpath) {
                if (policyfastpath &&
                    pkcs11_is_dismech(fast_slot, pMechanism->mechanism)) {
                        return (CKR_MECHANISM_INVALID);
                }
                return (fast_funcs->C_DigestInit(hSession, pMechanism));
        }

        if (!pkcs11_initialized) {
                return (CKR_CRYPTOKI_NOT_INITIALIZED);
        }

        /* Obtain the session pointer */
        HANDLE2SESSION(hSession, sessp, rv);

        if (rv != CKR_OK) {
                return (rv);
        }

        slotid = sessp->se_slotid;

        /* Make sure this is not a disabled mechanism */
        if (pkcs11_is_dismech(slotid, pMechanism->mechanism)) {
                return (CKR_MECHANISM_INVALID);
        }

        /* Initialize the digest with the underlying provider */
        rv = FUNCLIST(slotid)->C_DigestInit(sessp->se_handle,
            pMechanism);

        /* Present consistent interface to the application */
        if (rv == CKR_FUNCTION_NOT_SUPPORTED) {
                return (CKR_FUNCTION_FAILED);
        }

        return (rv);
}

/*
 * C_Digest is a pure wrapper to the underlying provider.
 * The only argument checked is whether or not hSession is valid.
 */
CK_RV
C_Digest(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData, CK_ULONG ulDataLen,
    CK_BYTE_PTR pDigest, CK_ULONG_PTR pulDigestLen)
{

        CK_RV rv;
        pkcs11_session_t *sessp;

        /* Check for a fastpath */
        if (purefastpath || policyfastpath) {
                return (fast_funcs->C_Digest(hSession, pData, ulDataLen,
                            pDigest, pulDigestLen));
        }

        if (!pkcs11_initialized) {
                return (CKR_CRYPTOKI_NOT_INITIALIZED);
        }

        /* Obtain the session pointer */
        HANDLE2SESSION(hSession, sessp, rv);

        if (rv != CKR_OK) {
                return (rv);
        }

        /* Pass data to the provider */
        rv = FUNCLIST(sessp->se_slotid)->C_Digest(sessp->se_handle, pData,
            ulDataLen, pDigest, pulDigestLen);

        /* Present consistent interface to the application */
        if (rv == CKR_FUNCTION_NOT_SUPPORTED) {
                return (CKR_FUNCTION_FAILED);
        }

        return (rv);

}

/*
 * C_DigestUpdate is a pure wrapper to the underlying provider.
 * The only argument checked is whether or not hSession is valid.
 */
CK_RV
C_DigestUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
    CK_ULONG ulPartLen)
{
        CK_RV rv;
        pkcs11_session_t *sessp;

        /* Check for a fastpath */
        if (purefastpath || policyfastpath) {
                return (fast_funcs->C_DigestUpdate(hSession, pPart,
                            ulPartLen));
        }

        if (!pkcs11_initialized) {
                return (CKR_CRYPTOKI_NOT_INITIALIZED);
        }

        /* Obtain the session pointer */
        HANDLE2SESSION(hSession, sessp, rv);

        if (rv != CKR_OK) {
                return (rv);
        }

        /* Pass data to the provider */
        rv = FUNCLIST(sessp->se_slotid)->C_DigestUpdate(sessp->se_handle,
            pPart, ulPartLen);

        /* Present consistent interface to the application */
        if (rv == CKR_FUNCTION_NOT_SUPPORTED) {
                return (CKR_FUNCTION_FAILED);
        }

        return (rv);
}

/*
 * C_DigestKey is a pure wrapper to the underlying provider.
 * The only argument checked is whether or not hSession is valid.
 */
CK_RV
C_DigestKey(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE hKey)
{
        CK_RV rv;
        pkcs11_session_t *sessp;

        /* Check for a fastpath */
        if (purefastpath || policyfastpath) {
                return (fast_funcs->C_DigestKey(hSession, hKey));
        }

        if (!pkcs11_initialized) {
                return (CKR_CRYPTOKI_NOT_INITIALIZED);
        }

        /* Obtain the session pointer */
        HANDLE2SESSION(hSession, sessp, rv);

        if (rv != CKR_OK) {
                return (rv);
        }

        /* Pass data to the provider */
        rv = FUNCLIST(sessp->se_slotid)->C_DigestKey(sessp->se_handle, hKey);

        /* Present consistent interface to the application */
        if (rv == CKR_FUNCTION_NOT_SUPPORTED) {
                return (CKR_FUNCTION_FAILED);
        }

        return (rv);
}

/*
 * C_DigestFinal is a pure wrapper to the underlying provider.
 * The only argument checked is whether or not hSession is valid.
 */
CK_RV
C_DigestFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pDigest,
    CK_ULONG_PTR pulDigestLen)
{
        CK_RV rv;
        pkcs11_session_t *sessp;

        /* Check for a fastpath */
        if (purefastpath || policyfastpath) {
                return (fast_funcs->C_DigestFinal(hSession, pDigest,
                            pulDigestLen));
        }

        if (!pkcs11_initialized) {
                return (CKR_CRYPTOKI_NOT_INITIALIZED);
        }

        /* Obtain the session pointer */
        HANDLE2SESSION(hSession, sessp, rv);

        if (rv != CKR_OK) {
                return (rv);
        }

        /* Pass data to the provider */
        rv = FUNCLIST(sessp->se_slotid)->C_DigestFinal(sessp->se_handle,
            pDigest, pulDigestLen);

        /* Present consistent interface to the application */
        if (rv == CKR_FUNCTION_NOT_SUPPORTED) {
                return (CKR_FUNCTION_FAILED);
        }

        return (rv);
}