fksmb_sign_pkcs.c revision b819cea2f73f98c5662230cc9affc8cc84f77fcf
/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Helper functions for SMB1 signing using PKCS#11
*
* There are two implementations of these functions:
* This one (for user space) and another for kernel.
* See: uts/common/fs/smbsrv/smb_sign_kcf.c
*/
#include <stdlib.h>
#include <smbsrv/smb_kproto.h>
#include <smbsrv/smb_signing.h>
#include <security/cryptoki.h>
#include <security/pkcs11.h>
/*
* SMB1 signing helpers:
* (getmech, init, update, final)
*/
int
smb_md5_getmech(smb_sign_mech_t *mech)
{
mech->mechanism = CKM_MD5;
mech->pParameter = NULL;
mech->ulParameterLen = 0;
return (0);
}
/*
* Start PKCS#11 session.
*/
int
smb_md5_init(smb_sign_ctx_t *ctxp, smb_sign_mech_t *mech)
{
CK_RV rv;
rv = SUNW_C_GetMechSession(mech->mechanism, ctxp);
if (rv != CKR_OK)
return (-1);
rv = C_DigestInit(*ctxp, mech);
return (rv == CKR_OK ? 0 : -1);
}
/*
* Digest one segment
*/
int
smb_md5_update(smb_sign_ctx_t ctx, void *buf, size_t len)
{
CK_RV rv;
rv = C_DigestUpdate(ctx, buf, len);
if (rv != CKR_OK)
(void) C_CloseSession(ctx);
return (rv == CKR_OK ? 0 : -1);
}
/*
* Get the final digest.
*/
int
smb_md5_final(smb_sign_ctx_t ctx, uint8_t *digest16)
{
CK_ULONG len = MD5_DIGEST_LENGTH;
CK_RV rv;
rv = C_DigestFinal(ctx, digest16, &len);
(void) C_CloseSession(ctx);
return (rv == CKR_OK ? 0 : -1);
}