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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <security/cryptoki.h>
#include "softGlobal.h"
#include "softRandom.h"
#include "softSession.h"
CK_RV
C_SeedRandom(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pSeed, CK_ULONG ulSeedLen)
{
CK_RV rv;
soft_session_t *session_p;
boolean_t lock_held = B_FALSE;
long nwrite;
if (!softtoken_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obtain the session pointer just for validity check. */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
SES_REFRELE(session_p, lock_held);
if ((pSeed == NULL) || (ulSeedLen == 0)) {
return (CKR_ARGUMENTS_BAD);
}
if (soft_urandom_seed_fd < 0) {
(void) pthread_mutex_lock(&soft_giant_mutex);
/* Check again holding the mutex */
if (soft_urandom_seed_fd < 0) {
while ((soft_urandom_seed_fd = open(DEV_URANDOM,
O_WRONLY)) < 0) {
if (errno != EINTR)
break;
}
if (soft_urandom_seed_fd < 0) {
(void) pthread_mutex_unlock(
&soft_giant_mutex);
if (errno == EACCES)
return (
CKR_RANDOM_SEED_NOT_SUPPORTED);
return (CKR_DEVICE_ERROR);
}
(void) fcntl(soft_urandom_seed_fd, F_SETFD,
FD_CLOEXEC);
}
(void) pthread_mutex_unlock(&soft_giant_mutex);
}
nwrite = looping_write(soft_urandom_seed_fd, pSeed, ulSeedLen);
if (nwrite <= 0) {
return (CKR_DEVICE_ERROR);
}
return (CKR_OK);
}
CK_RV
C_GenerateRandom(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pRandomData,
CK_ULONG ulRandomLen)
{
CK_RV rv;
soft_session_t *session_p;
boolean_t lock_held = B_FALSE;
if (!softtoken_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obtain the session pointer just for validity check. */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
SES_REFRELE(session_p, lock_held);
if ((pRandomData == NULL) || (ulRandomLen == 0)) {
return (CKR_ARGUMENTS_BAD);
}
return (soft_random_generator(pRandomData, ulRandomLen, B_FALSE));
}
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