kernelVerify.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdlib.h>
#include <errno.h>
#include <sys/crypto/ioctl.h>
#include <security/cryptoki.h>
#include "kernelGlobal.h"
#include "kernelObject.h"
#include "kernelSession.h"
CK_RV
C_VerifyInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism,
CK_OBJECT_HANDLE hKey)
{
CK_RV rv;
kernel_session_t *session_p;
kernel_object_t *key_p;
boolean_t ses_lock_held = B_FALSE;
crypto_verify_init_t verify_init;
crypto_mech_type_t k_mech_type;
int r;
if (!kernel_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
if (pMechanism == NULL) {
return (CKR_ARGUMENTS_BAD);
}
/* Get the kernel's internal mechanism number. */
rv = kernel_mech(pMechanism->mechanism, &k_mech_type);
if (rv != CKR_OK)
return (rv);
/* Obtain the session pointer. */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
/* Obtain the object pointer. */
HANDLE2OBJECT(hKey, key_p, rv);
if (rv != CKR_OK) {
goto clean_exit;
}
/* Check to see if key object supports verification. */
if (key_p->is_lib_obj && !(key_p->bool_attr_mask & VERIFY_BOOL_ON)) {
rv = CKR_KEY_TYPE_INCONSISTENT;
goto clean_exit;
}
(void) pthread_mutex_lock(&session_p->session_mutex);
ses_lock_held = B_TRUE;
/*
* This active flag will remain ON until application calls either
* C_Verify or C_VerifyFinal to verify a signature on data.
*/
session_p->verify.flags = CRYPTO_OPERATION_ACTIVE;
if (!key_p->is_lib_obj) {
verify_init.vi_key.ck_format = CRYPTO_KEY_REFERENCE;
verify_init.vi_key.ck_obj_id = key_p->k_handle;
} else {
if (key_p->class == CKO_SECRET_KEY) {
verify_init.vi_key.ck_format = CRYPTO_KEY_RAW;
verify_init.vi_key.ck_data =
get_symmetric_key_value(key_p);
if (verify_init.vi_key.ck_data == NULL) {
rv = CKR_HOST_MEMORY;
goto clean_exit;
}
verify_init.vi_key.ck_length =
OBJ_SEC(key_p)->sk_value_len << 3;
} else if (key_p->key_type == CKK_RSA) {
if (get_rsa_public_key(key_p, &verify_init.vi_key) !=
CKR_OK) {
rv = CKR_HOST_MEMORY;
goto clean_exit;
}
} else if (key_p->key_type == CKK_DSA) {
if (get_dsa_public_key(key_p, &verify_init.vi_key) !=
CKR_OK) {
rv = CKR_HOST_MEMORY;
goto clean_exit;
}
} else {
rv = CKR_KEY_TYPE_INCONSISTENT;
goto clean_exit;
}
}
verify_init.vi_session = session_p->k_session;
(void) pthread_mutex_unlock(&session_p->session_mutex);
ses_lock_held = B_FALSE;
verify_init.vi_mech.cm_type = k_mech_type;
verify_init.vi_mech.cm_param = pMechanism->pParameter;
verify_init.vi_mech.cm_param_len = pMechanism->ulParameterLen;
while ((r = ioctl(kernel_fd, CRYPTO_VERIFY_INIT, &verify_init)) < 0) {
if (errno != EINTR)
break;
}
if (r < 0) {
rv = CKR_FUNCTION_FAILED;
} else {
rv = crypto2pkcs11_error_number(verify_init.vi_return_value);
}
/* free the memory allocated for sign_init.si_key */
if (key_p->is_lib_obj) {
if (key_p->class == CKO_SECRET_KEY) {
free(verify_init.vi_key.ck_data);
} else if (key_p->key_type == CKK_RSA) {
free_key_attributes(&verify_init.vi_key);
}
}
if (rv != CKR_OK) {
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->verify.flags &= ~CRYPTO_OPERATION_ACTIVE;
ses_lock_held = B_TRUE;
}
clean_exit:
REFRELE(session_p, ses_lock_held);
return (rv);
}
CK_RV
C_Verify(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData, CK_ULONG ulDataLen,
CK_BYTE_PTR pSignature, CK_ULONG ulSignatureLen)
{
CK_RV rv;
kernel_session_t *session_p;
boolean_t ses_lock_held = B_FALSE;
crypto_verify_t verify;
int r;
if (!kernel_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obatin the session pointer */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
(void) pthread_mutex_lock(&session_p->session_mutex);
ses_lock_held = B_TRUE;
/* Application must call C_VerifyInit before calling C_Verify. */
if (!(session_p->verify.flags & CRYPTO_OPERATION_ACTIVE)) {
REFRELE(session_p, ses_lock_held);
return (CKR_OPERATION_NOT_INITIALIZED);
}
/*
* C_Verify must be called without intervening C_VerifyUpdate
* calls.
*/
if (session_p->verify.flags & CRYPTO_OPERATION_UPDATE) {
/*
* C_Verify can not be used to terminate a multi-part
* operation, so we'll leave the active verify operation
* flag on and let the application continue with the
* verify update operation.
*/
REFRELE(session_p, ses_lock_held);
return (CKR_FUNCTION_FAILED);
}
verify.cv_session = session_p->k_session;
(void) pthread_mutex_unlock(&session_p->session_mutex);
ses_lock_held = B_FALSE;
verify.cv_datalen = ulDataLen;
verify.cv_databuf = (char *)pData;
verify.cv_signlen = ulSignatureLen;
verify.cv_signbuf = (char *)pSignature;
while ((r = ioctl(kernel_fd, CRYPTO_VERIFY, &verify)) < 0) {
if (errno != EINTR)
break;
}
if (r < 0) {
rv = CKR_FUNCTION_FAILED;
} else {
rv = crypto2pkcs11_error_number(verify.cv_return_value);
}
clean_exit:
/*
* Always terminate the active verify operation.
* Application needs to call C_VerifyInit again for next
* verify operation.
*/
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->verify.flags = 0;
ses_lock_held = B_TRUE;
REFRELE(session_p, ses_lock_held);
return (rv);
}
CK_RV
C_VerifyUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
CK_ULONG ulPartLen)
{
CK_RV rv;
kernel_session_t *session_p;
boolean_t ses_lock_held = B_FALSE;
crypto_verify_update_t verify_update;
int r;
if (!kernel_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obtain the session pointer */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
if (pPart == NULL) {
rv = CKR_ARGUMENTS_BAD;
goto clean_exit;
}
(void) pthread_mutex_lock(&session_p->session_mutex);
ses_lock_held = B_TRUE;
/*
* Application must call C_VerifyInit before calling
* C_VerifyUpdate.
*/
if (!(session_p->verify.flags & CRYPTO_OPERATION_ACTIVE)) {
REFRELE(session_p, ses_lock_held);
return (CKR_OPERATION_NOT_INITIALIZED);
}
session_p->verify.flags |= CRYPTO_OPERATION_UPDATE;
verify_update.vu_session = session_p->k_session;
(void) pthread_mutex_unlock(&session_p->session_mutex);
ses_lock_held = B_FALSE;
verify_update.vu_datalen = ulPartLen;
verify_update.vu_databuf = (char *)pPart;
while ((r = ioctl(kernel_fd, CRYPTO_VERIFY_UPDATE,
&verify_update)) < 0) {
if (errno != EINTR)
break;
}
if (r < 0) {
rv = CKR_FUNCTION_FAILED;
} else {
rv = crypto2pkcs11_error_number(verify_update.vu_return_value);
}
if (rv == CKR_OK) {
REFRELE(session_p, ses_lock_held);
return (rv);
}
clean_exit:
/*
* After an error occurred, terminate the current verify
* operation by resetting the active and update flags.
*/
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->verify.flags = 0;
ses_lock_held = B_TRUE;
REFRELE(session_p, ses_lock_held);
return (rv);
}
CK_RV
C_VerifyFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pSignature,
CK_ULONG ulSignatureLen)
{
CK_RV rv;
kernel_session_t *session_p;
boolean_t ses_lock_held = B_FALSE;
crypto_verify_final_t verify_final;
int r;
if (!kernel_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obtain the session pointer */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
(void) pthread_mutex_lock(&session_p->session_mutex);
ses_lock_held = B_TRUE;
/*
* Application must call C_VerifyInit before calling
* C_VerifyFinal.
*/
if (!(session_p->verify.flags & CRYPTO_OPERATION_ACTIVE)) {
REFRELE(session_p, ses_lock_held);
return (CKR_OPERATION_NOT_INITIALIZED);
}
verify_final.vf_session = session_p->k_session;
(void) pthread_mutex_unlock(&session_p->session_mutex);
ses_lock_held = B_FALSE;
verify_final.vf_signlen = ulSignatureLen;
verify_final.vf_signbuf = (char *)pSignature;
while ((r = ioctl(kernel_fd, CRYPTO_VERIFY_FINAL, &verify_final)) < 0) {
if (errno != EINTR)
break;
}
if (r < 0) {
rv = CKR_FUNCTION_FAILED;
} else {
rv = crypto2pkcs11_error_number(verify_final.vf_return_value);
}
clean_exit:
/* Always terminate the active verify operation */
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->verify.flags = 0;
ses_lock_held = B_TRUE;
REFRELE(session_p, ses_lock_held);
return (rv);
}
CK_RV
C_VerifyRecoverInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism,
CK_OBJECT_HANDLE hKey)
{
CK_RV rv;
kernel_session_t *session_p;
kernel_object_t *key_p;
boolean_t ses_lock_held = B_FALSE;
crypto_verify_recover_init_t vr_init;
crypto_mech_type_t k_mech_type;
int r;
if (!kernel_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
if (pMechanism == NULL) {
return (CKR_ARGUMENTS_BAD);
}
/* Get the kernel's internal mechanism number. */
rv = kernel_mech(pMechanism->mechanism, &k_mech_type);
if (rv != CKR_OK)
return (rv);
/* Obtain the session pointer. */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
/* Obtain the object pointer. */
HANDLE2OBJECT(hKey, key_p, rv);
if (rv != CKR_OK) {
goto clean_exit;
}
/*
* Check to see if key object is a RSA key and if it supports
* verify_recover.
*/
if (key_p->is_lib_obj && !((key_p->key_type == CKK_RSA) &&
(key_p->bool_attr_mask & VERIFY_RECOVER_BOOL_ON))) {
rv = CKR_KEY_TYPE_INCONSISTENT;
goto clean_exit;
}
(void) pthread_mutex_lock(&session_p->session_mutex);
ses_lock_held = B_TRUE;
/*
* This active flag will remain ON until application calls
* C_VerifyRecover to verify a signature on data.
*/
session_p->verify.flags = CRYPTO_OPERATION_ACTIVE;
/* Set up the key data */
if (!key_p->is_lib_obj) {
vr_init.ri_key.ck_format = CRYPTO_KEY_REFERENCE;
vr_init.ri_key.ck_obj_id = key_p->k_handle;
} else {
if (key_p->key_type == CKK_RSA) {
if (get_rsa_public_key(key_p, &vr_init.ri_key) !=
CKR_OK) {
rv = CKR_HOST_MEMORY;
goto clean_exit;
}
} else {
rv = CKR_KEY_TYPE_INCONSISTENT;
goto clean_exit;
}
}
vr_init.ri_session = session_p->k_session;
(void) pthread_mutex_unlock(&session_p->session_mutex);
ses_lock_held = B_FALSE;
vr_init.ri_mech.cm_type = k_mech_type;
vr_init.ri_mech.cm_param = pMechanism->pParameter;
vr_init.ri_mech.cm_param_len = pMechanism->ulParameterLen;
while ((r = ioctl(kernel_fd, CRYPTO_VERIFY_RECOVER_INIT,
&vr_init)) < 0) {
if (errno != EINTR)
break;
}
if (r < 0) {
rv = CKR_FUNCTION_FAILED;
} else {
rv = crypto2pkcs11_error_number(vr_init.ri_return_value);
}
/* free the memory allocated for vr_init.ri_key */
if (key_p->is_lib_obj) {
free_key_attributes(&vr_init.ri_key);
}
if (rv != CKR_OK) {
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->verify.flags &= ~CRYPTO_OPERATION_ACTIVE;
ses_lock_held = B_TRUE;
}
clean_exit:
REFRELE(session_p, ses_lock_held);
return (rv);
}
CK_RV
C_VerifyRecover(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pSignature,
CK_ULONG ulSignatureLen, CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
{
CK_RV rv;
kernel_session_t *session_p;
boolean_t ses_lock_held = B_FALSE;
crypto_verify_recover_t verify_recover;
int r;
if (!kernel_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obtain the session pointer */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
if (pSignature == NULL || pulDataLen == NULL) {
rv = CKR_ARGUMENTS_BAD;
goto clean_exit;
}
(void) pthread_mutex_lock(&session_p->session_mutex);
ses_lock_held = B_TRUE;
/*
* Application must call C_VerifyRecoverInit before calling
* C_Verify.
*/
if (!(session_p->verify.flags & CRYPTO_OPERATION_ACTIVE)) {
REFRELE(session_p, ses_lock_held);
return (CKR_OPERATION_NOT_INITIALIZED);
}
verify_recover.vr_session = session_p->k_session;
(void) pthread_mutex_unlock(&session_p->session_mutex);
ses_lock_held = B_FALSE;
verify_recover.vr_signlen = ulSignatureLen;
verify_recover.vr_signbuf = (char *)pSignature;
verify_recover.vr_datalen = *pulDataLen;
verify_recover.vr_databuf = (char *)pData;
while ((r = ioctl(kernel_fd, CRYPTO_VERIFY_RECOVER,
&verify_recover)) < 0) {
if (errno != EINTR)
break;
}
if (r < 0) {
rv = CKR_FUNCTION_FAILED;
} else {
rv = crypto2pkcs11_error_number(
verify_recover.vr_return_value);
}
if (rv == CKR_OK || rv == CKR_BUFFER_TOO_SMALL)
*pulDataLen = verify_recover.vr_datalen;
if ((rv == CKR_BUFFER_TOO_SMALL) ||
(rv == CKR_OK && pData == NULL)) {
/*
* We will not terminate the active verify operation flag,
* when the application-supplied buffer is too small, or
* the application asks for the length of buffer to hold
* the recovered data.
*/
REFRELE(session_p, ses_lock_held);
return (rv);
}
clean_exit:
/*
* Always terminate the active verify operation.
* Application needs to call C_VerifyInit again for next
* verify operation.
*/
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->verify.flags = 0;
ses_lock_held = B_TRUE;
REFRELE(session_p, ses_lock_held);
return (rv);
}