/*************************************************************************
* Copyright (C) 2022 Intel Corporation
*
* Licensed under the Apache License,  Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* 	http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law  or agreed  to  in  writing,  software
* distributed under  the License  is  distributed  on  an  "AS IS"  BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the  specific  language  governing  permissions  and
* limitations under the License.
*************************************************************************/

#include <internal/common/ifma_defs.h>
#include <internal/sm4/sm4_ccm_mb.h>

DLL_PUBLIC
mbx_status16 mbx_sm4_ccm_update_aad_mb16(const int8u *const pa_aad[SM4_LINES], const int aad_len[SM4_LINES], SM4_CCM_CTX_mb16 *p_context)
{
   int buf_no;
   mbx_status16 status = 0;
   __mmask16 mb_mask   = 0xFFFF;

   /* Test input pointers */
   if (NULL == pa_aad || NULL == aad_len || NULL == p_context) {
      status = MBX_SET_STS16_ALL(MBX_STATUS_NULL_PARAM_ERR);
      return status;
   }

   /* Check state */
   if (sm4_ccm_update_aad != SM4_CCM_CONTEXT_STATE(p_context)) {
      status = MBX_SET_STS16_ALL(MBX_STATUS_MISMATCH_PARAM_ERR);
      return status;
   }

   /* Don't process buffers with input pointers equal to zero */
   for (buf_no = 0; buf_no < SM4_LINES; buf_no++) {
      if (pa_aad[buf_no] == NULL) {
         if (aad_len[buf_no] != 0) {
             status = MBX_SET_STS16(status, buf_no, MBX_STATUS_NULL_PARAM_ERR);
             mb_mask &= ~(0x1 << buf_no);
             continue;
         }
      }
      if (aad_len[buf_no] < 0 || aad_len[buf_no] > MAX_CCM_AAD_LENGTH) {
         status = MBX_SET_STS16(status, buf_no, MBX_STATUS_MISMATCH_PARAM_ERR);
         mb_mask &= ~(0x1 << buf_no);
      }
   }

   if (MBX_IS_ANY_OK_STS16(status))
      sm4_ccm_update_aad_mb16(pa_aad, aad_len, mb_mask, p_context);

   return status;
}
