mirror of https://github.com/ARMmbed/mbed-os.git
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2017, Arm Limited and affiliates.
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* 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 "nsconfig.h"
|
|
#include "ns_types.h"
|
|
#include "common_functions.h"
|
|
#include "Security/PANA/pana_header.h"
|
|
|
|
#ifdef PANA
|
|
#define PANA_HEADER_START 0x0000
|
|
|
|
|
|
|
|
bool pana_header_parse(uint8_t *ptr, uint16_t data_length, pana_header_t *header)
|
|
{
|
|
if (data_length < 16) {
|
|
return false;
|
|
}
|
|
|
|
if (common_read_16_bit(ptr) != PANA_HEADER_START) {
|
|
return false;
|
|
}
|
|
|
|
header->payload_len = common_read_16_bit(ptr + 2);
|
|
ptr += 4;
|
|
if (header->payload_len != data_length) {
|
|
return false;
|
|
}
|
|
|
|
header->flags = common_read_16_bit(ptr);
|
|
header->type = common_read_16_bit(ptr + 2);
|
|
ptr += 4;
|
|
header->session_id = common_read_32_bit(ptr);
|
|
ptr += 4;
|
|
header->seq = common_read_32_bit(ptr);
|
|
|
|
return true;
|
|
}
|
|
|
|
uint8_t *pana_header_write(uint8_t *ptr, const pana_header_t *header)
|
|
{
|
|
ptr = common_write_16_bit(PANA_HEADER_START, ptr);
|
|
ptr = common_write_16_bit(header->payload_len, ptr);
|
|
ptr = common_write_16_bit(header->flags, ptr);
|
|
ptr = common_write_16_bit(header->type, ptr);
|
|
ptr = common_write_32_bit(header->session_id, ptr);
|
|
return common_write_32_bit(header->seq, ptr);
|
|
}
|
|
#endif
|