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qat_hw_ccm.c
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qat_hw_ccm.c
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/* ====================================================================
*
*
* BSD LICENSE
*
* Copyright(c) 2023-2024 Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* ====================================================================
*/
/*****************************************************************************
* @file qat_hw_ccm.c
*
* This file contains the engine implementations for CCM cipher operations
*
*****************************************************************************/
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <string.h>
#include <pthread.h>
#include <signal.h>
#ifdef USE_QAT_CONTIG_MEM
# include "qae_mem_utils.h"
#endif
#ifdef USE_USDM_MEM
# include "qat_hw_usdm_inf.h"
#endif
#include "e_qat.h"
#include "qat_utils.h"
#include "qat_hw_callback.h"
#include "qat_hw_polling.h"
#include "qat_events.h"
#include "cpa.h"
#include "cpa_types.h"
#include "cpa_cy_sym.h"
#include "qat_evp.h"
#include "qat_hw_ccm.h"
#include "qat_hw_ciphers.h"
#ifdef QAT_OPENSSL_PROVIDER
# include "qat_prov_aes_ccm.h"
#endif
#include <openssl/evp.h>
#include <openssl/aes.h>
#include <openssl/err.h>
#include <openssl/sha.h>
#include <openssl/tls1.h>
#include <openssl/ssl.h>
#define GET_SW_AES_CCM_CIPHER(ctx) \
qat_ccm_cipher_sw_impl(EVP_CIPHER_CTX_type((ctx)) )
#ifdef ENABLE_QAT_HW_CCM
/******************************************************************************
* function:
* qat_session_data_init(EVP_CIPHER_CTX *ctx,
* qat_aes_ccm_ctx *qctx,
* const unsigned char* key,
* const unsigned char* iv,
* int enc)
*
* @param ctx [IN] - pointer to the evp context
* @param qctx [IN] - pointer to the qat context
* @param key [IN] - pointer to the cipher key
* @param iv [IN] - pointer to the iv this maybe NULL.
* @param enc [IN] - whether we are doing encryption (1) or decryption (0).
*
* description:
* This function is to create QAT specific session data.
* It is called from the function qat_aes_ccm_init().
*
* It will return 1 if successful and 0 on failure.
******************************************************************************/
# ifdef QAT_OPENSSL_PROVIDER
static int qat_session_data_init(EVP_CIPHER_CTX *ctx,
void *vctx,
const unsigned char *key,
int keylen,
const unsigned char *iv, int ivlen, int enc)
# else
static int qat_session_data_init(EVP_CIPHER_CTX *ctx,
qat_ccm_ctx * qctx,
const unsigned char *key,
const unsigned char *iv, int enc)
# endif
{
# ifdef QAT_OPENSSL_PROVIDER
QAT_PROV_CCM_CTX *qctx = (QAT_PROV_CCM_CTX *) vctx;
# endif
DEBUG("QAT HW CCM Started\n");
if (NULL == qctx || NULL == ctx) {
WARN("qctx or ctx is NULL\n");
QATerr(QAT_F_QAT_SESSION_DATA_INIT, QAT_R_QCTX_CTX_NULL);
return 0;
}
if (key != NULL) {
if (qctx->qat_svm) {
if (qctx->cipher_key) {
OPENSSL_free(qctx->cipher_key);
qctx->cipher_key = NULL;
}
# ifdef QAT_OPENSSL_PROVIDER
qctx->cipher_key = OPENSSL_zalloc(keylen);
# else
qctx->cipher_key = OPENSSL_zalloc(EVP_CIPHER_CTX_key_length(ctx));
# endif
} else {
if (qctx->cipher_key) {
qaeCryptoMemFreeNonZero(qctx->cipher_key);
qctx->cipher_key = NULL;
}
# ifdef QAT_OPENSSL_PROVIDER
qctx->cipher_key = qaeCryptoMemAlloc(keylen, __FILE__, __LINE__);
# else
qctx->cipher_key =
qaeCryptoMemAlloc(EVP_CIPHER_CTX_key_length(ctx), __FILE__,
__LINE__);
# endif
}
if (qctx->cipher_key == NULL) {
WARN("Unable to allocate memory for qctx->cipher_key.\n");
QATerr(QAT_F_QAT_SESSION_DATA_INIT, QAT_R_KEY_MALLOC_FAILURE);
return 0;
}
# ifdef QAT_OPENSSL_PROVIDER
memcpy(qctx->cipher_key, key, keylen);
# else
memcpy(qctx->cipher_key, key, EVP_CIPHER_CTX_key_length(ctx));
# endif
qctx->key_set = 1;
}
if (iv != NULL && qctx->iv_set) {
qctx->OpData.ivLenInBytes = QAT_AES_CCM_OP_VALUE - qctx->L;
}
if (NULL == qctx->session_data) {
qctx->session_data = OPENSSL_zalloc(sizeof(CpaCySymSessionSetupData));
if (NULL == qctx->session_data) {
WARN("session setup data zalloc failure\n");
QATerr(QAT_F_QAT_SESSION_DATA_INIT, QAT_R_SSD_MALLOC_FAILURE);
return 0;
}
}
/* Set priority and operation of this session */
qctx->session_data->sessionPriority = CPA_CY_PRIORITY_HIGH;
qctx->session_data->symOperation = CPA_CY_SYM_OP_ALGORITHM_CHAINING;
/* --- Cipher configuration --- */
/* Cipher algorithm and mode */
qctx->session_data->cipherSetupData.cipherAlgorithm =
CPA_CY_SYM_CIPHER_AES_CCM;
/* Cipher key length */
if (key != NULL && qctx->key_set) {
# ifdef QAT_OPENSSL_PROVIDER
qctx->session_data->cipherSetupData.cipherKeyLenInBytes = keylen;
# else
qctx->session_data->cipherSetupData.cipherKeyLenInBytes =
EVP_CIPHER_CTX_key_length(ctx);
# endif
}
if (qctx->key_set) {
qctx->session_data->cipherSetupData.pCipherKey =
(Cpa8U *) qctx->cipher_key;
}
/* Operation to perform */
if (enc) {
qctx->session_data->cipherSetupData.cipherDirection =
CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
qctx->session_data->algChainOrder =
CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER;
/* Tag follows immediately after the region to hash */
} else {
qctx->session_data->cipherSetupData.cipherDirection =
CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
qctx->session_data->algChainOrder =
CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH;
}
/* --- Hash Configuration --- */
/* Set the hash mode and the length of the digest */
qctx->session_data->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_AES_CCM;
qctx->session_data->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
qctx->session_data->hashSetupData.digestResultLenInBytes = qctx->M;
/* For CCM authKey and authKeyLen are not required.
* This information is provided by the cipherKey in cipherSetupData */
qctx->session_data->hashSetupData.authModeSetupData.authKey = NULL;
qctx->session_data->hashSetupData.authModeSetupData.authKeyLenInBytes = 0;
/* Set the length of the AAD to the default value */
qctx->session_data->hashSetupData.authModeSetupData.aadLenInBytes = 0;
/* Tag follows immediately after the region to hash */
qctx->session_data->digestIsAppended = CPA_TRUE;
/* digestVerify is not required to be set. For CCM authenticated
* encryption this value is understood to be CPA_FALSE during encryption and
* CPA_TRUE during decryption */
qctx->init_params_set = 1;
return 1;
}
/******************************************************************************
* function:
* qat_aes_ccm_init(EVP_CIPHER_CTX *ctx,
* const unsigned char *inkey,
* const unsigned char *iv,
* int enc)
*
* @param ctx [IN] - pointer to existing context
* @param inKey [IN] - input cipher key
* @param iv [IN] - initialisation vector
* @param enc [IN] - 1 encrypt 0 decrypt
*
* @retval 1 function succeeded
* @retval 0 function failed
*
* description:
* This function initialises the cipher and hash algorithm parameters for this
* EVP context.
*
******************************************************************************/
# ifdef QAT_OPENSSL_PROVIDER
int qat_aes_ccm_init(void *ctx, const unsigned char *inkey,
int keylen, const unsigned char *iv, int ivlen, int enc)
{
# else
int qat_aes_ccm_init(EVP_CIPHER_CTX *ctx,
const unsigned char *inkey,
const unsigned char *iv, int enc)
{
# endif
# ifdef QAT_OPENSSL_PROVIDER
QAT_PROV_CCM_CTX *qctx = (QAT_PROV_CCM_CTX *) ctx;
# else
qat_ccm_ctx *qctx = NULL;
# endif
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
int ret = 1;
# ifdef QAT_OPENSSL_PROVIDER
QAT_EVP_CIPHER sw_aes_ccm_cipher;
int nid = qctx->nid;
# endif
# endif
if (NULL == ctx) {
WARN("ctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_INIT, QAT_R_CTX_NULL);
return 0;
}
DEBUG("CTX = %p, key = %p, iv = %p, enc = %d\n",
(void *)ctx, (void *)inkey, (void *)iv, enc);
# ifndef QAT_OPENSSL_PROVIDER
qctx = QAT_CCM_GET_CTX(ctx);
# else
qctx->enc = enc;
# endif
/* Initialise a QAT session and set the cipher keys */
if (NULL == qctx) {
WARN("qctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_INIT, QAT_R_QCTX_NULL);
return 0;
}
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
EVP_CIPHER_CTX_set_cipher_data(ctx, qctx->sw_ctx_cipher_data);
/* Run the software init function */
ret =
EVP_CIPHER_meth_get_init(GET_SW_AES_CCM_CIPHER(ctx)) (ctx, inkey, iv,
enc);
EVP_CIPHER_CTX_set_cipher_data(ctx, qctx);
if (ret != 1)
goto err;
# else
OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
sw_aes_ccm_cipher = get_default_cipher_aes_ccm(nid);
if (enc) {
if (!qctx->sw_ctx)
qctx->sw_ctx = sw_aes_ccm_cipher.newctx(ctx);
ret =
sw_aes_ccm_cipher.einit(qctx->sw_ctx, inkey, keylen, iv, ivlen,
params);
} else {
if (!qctx->sw_ctx)
qctx->sw_ctx = sw_aes_ccm_cipher.newctx(ctx);
unsigned int pad = 0;
params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_PADDING, &pad);
ret =
sw_aes_ccm_cipher.dinit(qctx->sw_ctx, inkey, keylen, iv, ivlen,
params);
}
if (ret != 1)
goto err;
# endif
# endif
if (!inkey && !iv) {
DEBUG("key and IV not set\n");
return 1;
}
if ((qctx->inst_num = get_instance(QAT_INSTANCE_SYM, QAT_INSTANCE_ANY))
== QAT_INVALID_INSTANCE) {
WARN("Failed to get QAT Instance Handle\n");
return 0;
}
qctx->qat_svm =
!qat_instance_details[qctx->inst_num].qat_instance_info.
requiresPhysicallyContiguousMemory;
if (iv) {
/* Set the value of the IV */
memcpy(qctx->next_iv, iv, QAT_AES_CCM_OP_VALUE - qctx->L);
qctx->iv_len = QAT_AES_CCM_OP_VALUE - qctx->L;
qctx->iv_set = 1;
}
qctx->tls_aad_len = -1;
qctx->tag_len = -1;
qctx->tag_set = 0;
qctx->len_set = 0;
/* Initialize QAT session */
# ifdef QAT_OPENSSL_PROVIDER
if (0 == qat_session_data_init(ctx, qctx, inkey, keylen, iv, ivlen, enc)) {
# else
if (0 == qat_session_data_init(ctx, qctx, inkey, iv, enc)) {
# endif
WARN("qat_session_data_init failed.\n");
goto err;
}
return 1;
err:
QAT_MEM_FREE_BUFF(qctx->cipher_key, qctx->qat_svm);
return 0;
}
/******************************************************************************
* function:
* qat_aes_ccm_ctrl(EVP_CIPHER_CTX *ctx,
* int type, int arg, void *ptr)
*
* @param ctx [IN] - pointer to existing context
* @param type [IN] - type of request either
* EVP_CTRL_AEAD_SET_MAC_KEY or EVP_CTRL_AEAD_TLS1_AAD
* @param arg [IN] - size of the pointed to by ptr
* @param ptr [IN] - input buffer contain the necessary parameters
*
* @retval x The return value is dependent on the type of request being made
* EVP_CTRL_AEAD_SET_MAC_KEY return of 1 is success
* EVP_CTRL_AEAD_TLS1_AAD return value indicates the amount
* for padding to be applied to the SSL/TLS record
* @retval -1 function failed
*
* description:
* This function is a generic control interface provided by the EVP API. For
* chained requests this interface is used for setting the hmac key value for
* authentication of the SSL/TLS record.
* The second type is used to specify the TLS virtual header which is used
* in the authentication calculation and to identify record payload size.
*
******************************************************************************/
# ifdef QAT_OPENSSL_PROVIDER
int qat_aes_ccm_ctrl(void *ctx, int type, int arg, void *ptr)
# else
int qat_aes_ccm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
# endif
{
# ifdef QAT_OPENSSL_PROVIDER
QAT_PROV_CCM_CTX *qctx = (QAT_PROV_CCM_CTX *) ctx;
# else
qat_ccm_ctx *qctx = NULL;
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
int ret_sw = 0;
int nid = EVP_CIPHER_CTX_nid(ctx);
# endif
# endif
unsigned int plen = 0;
int enc = 0;
if (NULL == ctx) {
WARN("ctx is NULL.\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_CTX_NULL);
return 0;
}
# ifdef QAT_OPENSSL_PROVIDER
enc = qctx->enc;
# else
enc = EVP_CIPHER_CTX_encrypting(ctx);
qctx = QAT_CCM_GET_CTX(ctx);
if (NULL == qctx) {
WARN("qctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_QCTX_NULL);
return 0;
}
# endif
switch (type) {
case EVP_CTRL_INIT:
DEBUG("EVP_CTRL_INIT, ctx = %p, type = %d, "
"arg = %d, ptr = %p\n", (void *)ctx, type, arg, ptr);
qctx->key_set = 0;
qctx->iv_len = QAT_CCM_TLS_TOTAL_IV_LEN;
qctx->iv_set = 0;
qctx->tag_set = 0;
qctx->L = 8;
qctx->M = 12;
qctx->tls_aad_len = -1;
qctx->tag_len = -1;
qctx->len_set = 0;
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->sw_ctx_cipher_data == NULL) {
unsigned int sw_size = 0;
sw_size = EVP_CIPHER_impl_ctx_size(GET_SW_AES_CCM_CIPHER(ctx));
qctx->sw_ctx_cipher_data = OPENSSL_zalloc(sw_size);
if (qctx->sw_ctx_cipher_data == NULL) {
WARN("Unable to allocate memory for sw_ctx_cipher_data\n");
return -1;
}
}
goto sw_ctrl;
# endif
# endif
return 1;
case EVP_CTRL_GET_IVLEN:
DEBUG("EVP_CTRL_CCM_GET_IVLEN, ctx = %p, type = %d,"
" arg = %d, ptr = %p\n", (void *)ctx, type, arg, ptr);
*(int *)ptr = QAT_AES_CCM_OP_VALUE - qctx->L;
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->packet_size <= qat_pkt_threshold_table_get_threshold(nid)) {
goto sw_ctrl;
}
# endif
# endif
return 1;
case EVP_CTRL_AEAD_SET_TAG:
DEBUG("EVP_CTRL_AEAD_SET_TAG, ctx = %p, type = %d,"
" arg = %d, ptr = %p\n", (void *)ctx, type, arg, ptr);
if (arg < QAT_CCM_TAG_MIN_LEN || arg > QAT_CCM_TAG_MAX_LEN) {
WARN("TAG length invalid or invalid operation enc\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_SET_TAG_INVALID_OP);
return 0;
}
if (NULL == EVP_CIPHER_CTX_buf_noconst(ctx)) {
WARN("Memory pointer is not valid\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_INVALID_PTR);
return 0;
}
/* ctx->buf is a static buffer of size
* EVP_MAX_BLOCK_LENGTH = 32
*/
if (ptr) {
memcpy(EVP_CIPHER_CTX_buf_noconst(ctx), ptr, arg);
qctx->tag_set = 1;
}
qctx->tag_len = arg;
qctx->M = arg;
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->packet_size <= qat_pkt_threshold_table_get_threshold(nid)) {
goto sw_ctrl;
}
# endif
# endif
return 1;
case EVP_CTRL_AEAD_GET_TAG:
DEBUG("EVP_CTRL_CCM_GET_TAG, ctx = %p, type = %d,"
" arg = %d, ptr = %p\n", (void *)ctx, type, arg, ptr);
if (arg <= QAT_CCM_TAG_MIN_LEN || arg > QAT_CCM_TAG_MAX_LEN || !enc) {
WARN("TAG length invalid or invalid operation (!enc)\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_SET_TAG_INVALID_OP);
return 0;
}
if (NULL == EVP_CIPHER_CTX_buf_noconst(ctx) || NULL == ptr) {
WARN("Memory pointer is not valid\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_INVALID_PTR);
return 0;
}
memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(ctx), arg);
qctx->tag_set = 0;
qctx->iv_set = 0;
qctx->len_set = 0;
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->packet_size <= qat_pkt_threshold_table_get_threshold(nid)) {
goto sw_ctrl;
}
# endif
# endif
return 1;
case EVP_CTRL_CCM_SET_IV_FIXED:
DEBUG("EVP_CTRL_CCM_SET_IV_FIXED, ctx = %p, type = %d,"
" arg = %d, ptr = %p\n", (void *)ctx, type, arg, ptr);
if (NULL == ptr) {
WARN("Memory pointer is not valid\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_INVALID_PTR);
return 0;
}
/* Special case: -1 length restores whole IV */
if (arg == -1) {
memcpy(qctx->next_iv, ptr, QAT_CCM_TLS_TOTAL_IV_LEN);
return 1;
}
/* Fixed field must be at least 4 bytes (EVP_CCM_TLS_FIXED_IV_LEN)
* and invocation field at least 8 (EVP_CCM_TLS_EXPLICIT_IV_LEN)
*/
if ((arg < EVP_CCM_TLS_FIXED_IV_LEN) ||
(qctx->iv_len - arg) < EVP_CCM_TLS_EXPLICIT_IV_LEN) {
WARN("IV length invalid\n");
return 0;
}
if (arg != EVP_CCM_TLS_FIXED_IV_LEN) {
WARN("IV length not supported\n");
return 0;
}
if (arg) {
memcpy(qctx->next_iv, ptr, arg);
}
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->packet_size <= qat_pkt_threshold_table_get_threshold(nid)) {
goto sw_ctrl;
}
# endif
# endif
return 1;
case EVP_CTRL_AEAD_SET_IVLEN:
# ifdef ENABLE_QAT_SMALL_PKT_OFFLOAD
arg = QAT_AES_CCM_OP_VALUE - arg;
# endif
/* fall thru */
case EVP_CTRL_CCM_SET_L:
# ifdef ENABLE_QAT_SMALL_PKT_OFFLOAD
if (arg < 2 || arg > 8)
return 0;
qctx->L = arg;
# endif
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
qctx->L = QAT_AES_CCM_OP_VALUE - arg;
goto sw_ctrl;
# endif
# endif
return 1;
case EVP_CTRL_AEAD_TLS1_AAD:
DEBUG("EVP_CTRL_AEAD_TLS1_AAD, ctx = %p, type = %d,"
" arg = %d, ptr = %p\n", (void *)ctx, type, arg, ptr);
if (TLS_VIRT_HDR_SIZE != arg) {
WARN("AAD length is not valid\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_AAD_LEN_INVALID);
return 0;
}
/* Allocate the memory only the first time */
if (qctx->tls_aad_len < 0) {
int aad_buffer_len = TLS_VIRT_HDR_SIZE;
DEBUG("Allocating memory for AAD in TLS sync\n");
/* For QAT the length of the buffer for AAD must be multiple
* of block size */
if (aad_buffer_len % AES_BLOCK_SIZE) {
aad_buffer_len +=
AES_BLOCK_SIZE - (aad_buffer_len % AES_BLOCK_SIZE);
DEBUG("Adjusting AAD buffer length = %d\n", aad_buffer_len);
}
qctx->aad =
qat_mem_alloc(aad_buffer_len, qctx->qat_svm, __FILE__,
__LINE__);
if (NULL == qctx->aad) {
WARN("Unable to allocate memory for TLS header\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_AAD_MALLOC_FAILURE);
return 0;
}
/* Set the flag to mark the TLS case */
qctx->tls_aad_len = arg;
/* Set the length of the AAD in the session
* The session hasn't been initialized yet here and this value
* should never change in the TLS case */
qctx->session_data->hashSetupData.authModeSetupData.aadLenInBytes =
arg;
}
if (NULL == qctx->aad || NULL == ptr) {
WARN("Memory pointer is not valid\n");
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_AAD_INVALID_PTR);
return 0;
}
/* Copy the header from p into the buffer */
memcpy(qctx->aad, ptr, arg);
/* Extract the length of the payload from the TLS header */
plen = qctx->aad[arg - QAT_CCM_TLS_PAYLOADLENGTH_MSB_OFFSET]
<< QAT_BYTE_SHIFT |
qctx->aad[arg - QAT_CCM_TLS_PAYLOADLENGTH_LSB_OFFSET];
DEBUG("IN plen = %d\n", plen);
DUMPL("IN qctx->aad", qctx->aad, TLS_VIRT_HDR_SIZE);
/* The payload contains the explicit IV -> correct the length */
plen -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
/* If decrypting correct for tag too */
if (!enc) {
plen -= qctx->M;
}
/* Fix the length like in the SW version of CCM */
qctx->aad[arg - QAT_CCM_TLS_PAYLOADLENGTH_MSB_OFFSET]
= plen >> QAT_BYTE_SHIFT;
qctx->aad[arg - QAT_CCM_TLS_PAYLOADLENGTH_LSB_OFFSET]
= plen & 0xff;
DEBUG("OUT plen = %d\n", plen);
DUMPL("OUT qctx->aad", qctx->aad, TLS_VIRT_HDR_SIZE);
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->packet_size <= qat_pkt_threshold_table_get_threshold(nid)) {
goto sw_ctrl;
}
# endif
# endif
/* Return the length of the TAG */
return qctx->M;
case EVP_CTRL_COPY:
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
if (qctx->packet_size <= qat_pkt_threshold_table_get_threshold(nid)) {
goto sw_ctrl;
}
# endif
# endif
return 1;
default:
WARN("Invalid type %d\n", type);
QATerr(QAT_F_QAT_AES_CCM_CTRL, QAT_R_INVALID_CTRL_TYPE);
return -1;
}
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
sw_ctrl:
EVP_CIPHER_CTX_set_cipher_data(ctx, qctx->sw_ctx_cipher_data);
ret_sw =
EVP_CIPHER_meth_get_ctrl(GET_SW_AES_CCM_CIPHER(ctx)) (ctx, type, arg,
ptr);
EVP_CIPHER_CTX_set_cipher_data(ctx, qctx);
if (ret_sw < 0) {
WARN("SW aes-ccm ctrl function failed.\n");
return -1;
}
return ret_sw;
# endif
# endif
}
/******************************************************************************
* function:
* qat_aes_ccm_cleanup(EVP_CIPHER_CTX *ctx)
*
* @param ctx [IN] - pointer to existing context
*
* @retval 1 function succeeded
* @retval 0 function failed
*
* description:
* This function will cleanup all allocated resources required to perform the
* cryptographic transform.
*
******************************************************************************/
# ifdef QAT_OPENSSL_PROVIDER
int qat_aes_ccm_cleanup(void *ctx)
# else
int qat_aes_ccm_cleanup(EVP_CIPHER_CTX *ctx)
# endif
{
# ifdef QAT_OPENSSL_PROVIDER
QAT_PROV_CCM_CTX *qctx = (QAT_PROV_CCM_CTX *) ctx;
# else
qat_ccm_ctx *qctx = NULL;
# endif
CpaStatus sts = 0;
CpaCySymSessionSetupData *session_data = NULL;
CpaBoolean sessionInUse = CPA_FALSE;
int ret_val = 1;
DEBUG("- Entering\n");
if (NULL == ctx) {
WARN("ctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_CLEANUP, QAT_R_CTX_NULL);
return 0;
}
# ifndef QAT_OPENSSL_PROVIDER
qctx = QAT_CCM_GET_CTX(ctx);
if (NULL == qctx) {
WARN("qctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_CLEANUP, QAT_R_QCTX_NULL);
return 0;
}
# endif
/* Wait for in-flight requests before removing session */
if (qctx->qat_ctx != NULL) {
do {
cpaCySymSessionInUse(qctx->qat_ctx, &sessionInUse);
} while (sessionInUse);
}
session_data = qctx->session_data;
if (session_data) {
/* Remove the session */
if (qctx->qat_ctx) {
if ((sts =
cpaCySymRemoveSession(qat_instance_handles[qctx->inst_num],
qctx->qat_ctx))
!= CPA_STATUS_SUCCESS) {
WARN("cpaCySymRemoveSession FAILED, sts = %d.!\n", sts);
ret_val = 0;
/* Lets not return yet and instead make a best effort to
* cleanup the rest to avoid memory leaks
*/
}
/* Cleanup the memory */
QAT_MEM_FREE_NONZERO_BUFF(qctx->qat_ctx, qctx->qat_svm);
QAT_MEM_FREE_NONZERO_BUFF(qctx->srcBufferList.pPrivateMetaData,
qctx->qat_svm);
QAT_MEM_FREE_NONZERO_BUFF(qctx->dstBufferList.pPrivateMetaData,
qctx->qat_svm);
QAT_MEM_FREE_BUFF(qctx->cipher_key, qctx->qat_svm);
QAT_MEM_FREE_NONZERO_BUFF(qctx->aad, qctx->qat_svm);
QAT_MEM_FREE_NONZERO_BUFF(qctx->OpData.pAdditionalAuthData,
qctx->qat_svm);
QAT_MEM_FREE_NONZERO_BUFF(qctx->OpData.pIv, qctx->qat_svm);
qctx->qat_ctx = NULL;
qctx->srcBufferList.pPrivateMetaData = NULL;
qctx->dstBufferList.pPrivateMetaData = NULL;
qctx->OpData.pAdditionalAuthData = NULL;
qctx->OpData.pIv = NULL;
qctx->cipher_key = NULL;
qctx->aad = NULL;
}
session_data->cipherSetupData.pCipherKey = NULL;
OPENSSL_clear_free(session_data, sizeof(CpaCySymSessionSetupData));
}
qctx->is_session_init = 0;
# ifndef ENABLE_QAT_SMALL_PKT_OFFLOAD
# ifndef QAT_OPENSSL_PROVIDER
qctx->packet_size = 0;
if (qctx->sw_ctx_cipher_data) {
OPENSSL_free(qctx->sw_ctx_cipher_data);
qctx->sw_ctx_cipher_data = NULL;
}
# endif
# endif
# ifdef QAT_OPENSSL_PROVIDER
if (qctx->sw_ctx) {
OPENSSL_free(qctx->sw_ctx);
qctx->sw_ctx = NULL;
}
# endif
return ret_val;
}
/******************************************************************************
* * function:
*
* static void qat_ccm_cb(void *pCallbackTag, CpaStatus status,
* const CpaCySymOp operationType,
* void *pOpData, CpaBufferList *pDstBuffer,
* CpaBoolean verifyResult)
*
* @param pCallbackTag [IN] - Opaque value provided by user while making
* individual function call. Cast to op_done_pipe_t.
* @param status [IN] - Status of the operation.
* @param operationType [IN] - Identifies the operation type requested.
* @param pOpData [IN] - Pointer to structure with input parameters.
* @param pDstBuffer [IN] - Destination buffer to hold the data output.
* @param verifyResult [IN] - Used to verify digest result.
*
* description:
Callback to indicate the completion of crypto operation
******************************************************************************/
static void qat_ccm_cb(void *pCallbackTag, CpaStatus status,
const CpaCySymOp operationType,
void *pOpData, CpaBufferList * pDstBuffer,
CpaBoolean verifyResult)
{
if (enable_heuristic_polling) {
QAT_ATOMIC_DEC(num_cipher_pipeline_requests_in_flight);
}
DEBUG("status is = %d | verifyResult is = %d | tag function called %p \n",
status, verifyResult, (struct COMPLETION_STRUCT *)pCallbackTag);
qat_crypto_callbackFn(pCallbackTag, status, CPA_CY_SYM_OP_CIPHER, pOpData,
NULL, verifyResult);
}
/******************************************************************************
* function:
* qat_aes_ccm_session_init(EVP_CIPHER_CTX *ctx)
*
* @param ctx [IN] - pointer to context
*
* @retval 1 function succeeded
* @retval 0 function failed
*
* description:
* This function synchronises the initialisation of the QAT session and
* pre-allocates the necessary buffers for the session.
******************************************************************************/
# ifdef QAT_OPENSSL_PROVIDER
static int qat_aes_ccm_session_init(void *ctx)
# else
static int qat_aes_ccm_session_init(EVP_CIPHER_CTX *ctx)
# endif
{
# ifdef QAT_OPENSSL_PROVIDER
QAT_PROV_CCM_CTX *qctx = NULL;
# else
qat_ccm_ctx *qctx = NULL;
# endif
CpaCySymSessionSetupData *sessionSetupData = NULL;
Cpa32U sessionCtxSize = 0;
CpaCySymSessionCtx pSessionCtx = NULL;
int numBuffers = 1, enc = 0;
DEBUG("- Entering\n");
if (NULL == ctx) {
WARN("parameter ctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, QAT_R_CTX_NULL);
return 0;
}
# ifdef QAT_OPENSSL_PROVIDER
qctx = (QAT_PROV_CCM_CTX *) ctx;
enc = QAT_CCM_GET_ENC(qctx);;
# else
qctx = QAT_CCM_GET_CTX(ctx);
enc = EVP_CIPHER_CTX_encrypting(ctx);
# endif
if (NULL == qctx) {
WARN("qctx is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, QAT_R_QCTX_NULL);
return 0;
}
/* All parameters have not been set yet or we have already been
* initialised. */
if ((1 != qctx->init_params_set) || (1 == qctx->is_session_init)) {
WARN("Parameters not set or session already initialised\n");
goto err;
}
sessionSetupData = qctx->session_data;
if (NULL == sessionSetupData) {
WARN("sessionSetupData is NULL\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, QAT_R_SSD_NULL);
goto err;
}
if ((qctx->inst_num = get_instance(QAT_INSTANCE_SYM, QAT_INSTANCE_ANY))
== QAT_INVALID_INSTANCE) {
WARN("Failed to get QAT Instance Handle\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, ERR_R_INTERNAL_ERROR);
goto err;
}
/* Update digestResultLenInBytes with qctx->tag_len if both lengths
are mismatch for decryption */
if (!enc) {
DEBUG("digestResultLenInBytes = %d, tag len = %d\n",
sessionSetupData->hashSetupData.digestResultLenInBytes,
(int)qctx->M);
if (!(qctx->tag_len < 0)
&& sessionSetupData->hashSetupData.digestResultLenInBytes !=
qctx->M) {
sessionSetupData->hashSetupData.digestResultLenInBytes = qctx->M;
DEBUG("Taglen updated\n");
}
}
if (cpaCySymSessionCtxGetSize(qat_instance_handles[qctx->inst_num],
sessionSetupData,
&sessionCtxSize) != CPA_STATUS_SUCCESS) {
WARN("cpaCySymSessionCtxGetSize failed.\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, ERR_R_INTERNAL_ERROR);
goto err;
}
pSessionCtx =
(CpaCySymSessionCtx) qat_mem_alloc(sessionCtxSize, qctx->qat_svm,
__FILE__, __LINE__);
if (NULL == pSessionCtx) {
WARN("pSessionCtx malloc failed\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, ERR_R_INTERNAL_ERROR);
goto err;
}
DUMP_SESSION_SETUP_DATA(sessionSetupData);
if (cpaCySymInitSession(qat_instance_handles[qctx->inst_num],
qat_ccm_cb,
sessionSetupData,
pSessionCtx) != CPA_STATUS_SUCCESS) {
WARN("cpaCySymInitSession failed.\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, ERR_R_INTERNAL_ERROR);
goto err;
}
qctx->qat_ctx = pSessionCtx;
/* Setup meta data for buffer lists */
if (cpaCyBufferListGetMetaSize(qat_instance_handles[qctx->inst_num],
numBuffers, &(qctx->meta_size))
!= CPA_STATUS_SUCCESS) {
WARN("cpaCyBufferListGetBufferSize failed.\n");
QATerr(QAT_F_QAT_AES_CCM_SESSION_INIT, ERR_R_INTERNAL_ERROR);
goto err;
}
qctx->srcBufferList.numBuffers = numBuffers;
qctx->srcBufferList.pBuffers = &qctx->srcFlatBuffer;
qctx->srcBufferList.pUserData = NULL;
qctx->dstBufferList.numBuffers = numBuffers;
qctx->dstBufferList.pBuffers = &qctx->dstFlatBuffer;
qctx->dstBufferList.pUserData = NULL;
if (qctx->meta_size) {
qctx->srcBufferList.pPrivateMetaData =
qat_mem_alloc(qctx->meta_size, qctx->qat_svm, __FILE__, __LINE__);
if (NULL == qctx->srcBufferList.pPrivateMetaData) {
WARN("srcBufferList.pPrivateMetaData is NULL.\n");