usr/src/lib/pkcs11/pkcs11_softtoken/common/softRand.c

   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 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #include <errno.h>
  27 #include <fcntl.h>
  28 #include <sys/stat.h>
  29 #include <sys/types.h>
  30 #include <security/cryptoki.h>
  31 #include <cryptoutil.h>
  32 #include "softGlobal.h"
  33 #include "softSession.h"
  34
  35 CK_RV
  36 C_SeedRandom(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pSeed, CK_ULONG ulSeedLen)
  37 {
  38
  39         CK_RV   rv;
  40         soft_session_t  *session_p;
  41         boolean_t       lock_held = B_FALSE;
  42
  43         if (!softtoken_initialized)
  44                 return (CKR_CRYPTOKI_NOT_INITIALIZED);
  45
  46         /* Obtain the session pointer just for validity check. */
  47         rv = handle2session(hSession, &session_p);
  48         if (rv != CKR_OK)
  49                 return (rv);
  50
  51         SES_REFRELE(session_p, lock_held);
  52
  53         if ((pSeed == NULL) || (ulSeedLen == 0)) {
  54                 return (CKR_ARGUMENTS_BAD);
  55         }
  56
  57         if (pkcs11_seed_urandom(pSeed, ulSeedLen) < 0) {
  58                 if (errno == EACCES)
  59                         return (CKR_RANDOM_SEED_NOT_SUPPORTED);
  60                 return (CKR_DEVICE_ERROR);
  61         }
  62         return (CKR_OK);
  63
  64 }
  65
  66 CK_RV
  67 C_GenerateRandom(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pRandomData,
  68     CK_ULONG ulRandomLen)
  69 {
  70
  71         CK_RV   rv;
  72         soft_session_t  *session_p;
  73         boolean_t       lock_held = B_FALSE;
  74
  75         if (!softtoken_initialized)
  76                 return (CKR_CRYPTOKI_NOT_INITIALIZED);
  77
  78         /* Obtain the session pointer just for validity check. */
  79         rv = handle2session(hSession, &session_p);
  80         if (rv != CKR_OK)
  81                 return (rv);
  82
  83         SES_REFRELE(session_p, lock_held);
  84
  85         if ((pRandomData == NULL) || (ulRandomLen == 0)) {
  86                 return (CKR_ARGUMENTS_BAD);
  87         }
  88
  89         if (pkcs11_get_urandom(pRandomData, ulRandomLen) < 0)
  90                 return (CKR_DEVICE_ERROR);
  91         return (CKR_OK);
  92
  93 }