/*
* Perform encrypt init operation internally for the support of
* CKM_DES_MAC and CKM_DES_MAC_GENERAL
*
* This function is called with the session being held, and without
* its mutex taken.
*/
CK_RV
soft_encrypt_init_internal(soft_session_t *session_p, CK_MECHANISM_PTR
pMechanism, soft_object_t *key_p)
{
CK_RV rv;
(void) pthread_mutex_lock(&session_p->session_mutex);
/* Check to see if encrypt operation is already active */
if (session_p->encrypt.flags & CRYPTO_OPERATION_ACTIVE) {
(void) pthread_mutex_unlock(&session_p->session_mutex);
return (CKR_OPERATION_ACTIVE);
}
session_p->encrypt.flags = CRYPTO_OPERATION_ACTIVE;
(void) pthread_mutex_unlock(&session_p->session_mutex);
rv = soft_encrypt_init(session_p, pMechanism, key_p);
if (rv != CKR_OK) {
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->encrypt.flags &= ~CRYPTO_OPERATION_ACTIVE;
(void) pthread_mutex_unlock(&session_p->session_mutex);
}
return (rv);
}
CK_RV
C_EncryptInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism,
CK_OBJECT_HANDLE hKey)
{
CK_RV rv;
soft_session_t *session_p;
soft_object_t *key_p;
boolean_t lock_held = B_FALSE;
if (!softtoken_initialized)
return (CKR_CRYPTOKI_NOT_INITIALIZED);
/* Obtain the session pointer. */
rv = handle2session(hSession, &session_p);
if (rv != CKR_OK)
return (rv);
if (pMechanism == NULL) {
rv = CKR_ARGUMENTS_BAD;
goto clean_exit;
}
/* Obtain the object pointer. */
HANDLE2OBJECT(hKey, key_p, rv);
if (rv != CKR_OK)
goto clean_exit;
/* Check to see if key object allows for encryption. */
if (!(key_p->bool_attr_mask & ENCRYPT_BOOL_ON)) {
rv = CKR_KEY_FUNCTION_NOT_PERMITTED;
goto clean_exit1;
}
(void) pthread_mutex_lock(&session_p->session_mutex);
lock_held = B_TRUE;
/* Check to see if encrypt operation is already active. */
if (session_p->encrypt.flags & CRYPTO_OPERATION_ACTIVE) {
/* free the memory to avoid memory leak */
soft_crypt_cleanup(session_p, B_TRUE, lock_held);
}
/*
* This active flag will remain ON until application calls either
* C_Encrypt or C_EncryptFinal to actually obtain the final piece
* of ciphertext.
*/
session_p->encrypt.flags = CRYPTO_OPERATION_ACTIVE;
(void) pthread_mutex_unlock(&session_p->session_mutex);
lock_held = B_FALSE;
rv = soft_encrypt_init(session_p, pMechanism, key_p);
if (rv != CKR_OK) {
(void) pthread_mutex_lock(&session_p->session_mutex);
session_p->encrypt.flags &= ~CRYPTO_OPERATION_ACTIVE;
lock_held = B_TRUE;
}
clean_exit1:
OBJ_REFRELE(key_p);
clean_exit:
SES_REFRELE(session_p, lock_held);
return (rv);
}
