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mac_header_helper_functions.h
00001 /* 00002 * Copyright (c) 2016-2017, Arm Limited and affiliates. 00003 * SPDX-License-Identifier: Apache-2.0 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); 00006 * you may not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 00019 #ifndef MAC_HEADER_HELPER_FUNCTIONS_H_ 00020 #define MAC_HEADER_HELPER_FUNCTIONS_H_ 00021 00022 struct mac_fcf_sequence_s; 00023 struct mlme_security_s; 00024 struct mac_pre_parsed_frame_s; 00025 struct mac_pre_build_frame; 00026 struct mac_aux_security_header_s; 00027 00028 uint8_t mac_security_mic_length_get(uint8_t security_level); 00029 uint8_t mac_header_security_aux_header_length(uint8_t security_level, uint8_t keyIdmode); 00030 uint8_t mac_header_address_length(const struct mac_fcf_sequence_s *fcf); 00031 00032 void mac_header_security_parameter_set(struct mac_aux_security_header_s *header, const struct mlme_security_s *frame_setup); 00033 00034 /** 00035 * MAC layer FCF and data sequence parse from data 00036 */ 00037 void mac_header_parse_fcf_dsn(struct mac_fcf_sequence_s *header, const uint8_t *ptr); 00038 00039 void mac_header_security_components_read(struct mac_pre_parsed_frame_s *buffer, struct mlme_security_s *security_params); 00040 00041 /** 00042 * Next function should only call when address mode is not MAC_ADDR_MODE_NONE and parsed proper header! 00043 */ 00044 uint16_t mac_header_get_src_panid(const struct mac_fcf_sequence_s *header, const uint8_t *ptr); 00045 uint16_t mac_header_get_dst_panid(const struct mac_fcf_sequence_s *header, const uint8_t *ptr); 00046 void mac_header_get_src_address(const struct mac_fcf_sequence_s *header, const uint8_t *ptr, uint8_t *address_ptr); 00047 void mac_header_get_dst_address(const struct mac_fcf_sequence_s *header, const uint8_t *ptr, uint8_t *address_ptr); 00048 00049 uint16_t mcps_payload_length_from_received_frame(const struct mac_pre_parsed_frame_s *buffer); 00050 uint8_t mcps_mac_header_length_from_received_frame(const struct mac_pre_parsed_frame_s *buffer); 00051 uint32_t mcps_mac_security_frame_counter_read(const struct mac_pre_parsed_frame_s *buffer); 00052 uint8_t mcps_mac_command_frame_id_get(const struct mac_pre_parsed_frame_s *buffer); 00053 uint8_t *mcps_mac_payload_pointer_get(const struct mac_pre_parsed_frame_s *buffer); 00054 uint8_t *mcps_security_mic_pointer_get(const struct mac_pre_parsed_frame_s *buffer); 00055 uint8_t *mcps_mac_security_aux_header_start_pointer_get(const struct mac_pre_parsed_frame_s *buffer); 00056 00057 uint8_t * mcps_generic_header_write(uint8_t *ptr, const struct mac_pre_build_frame *buffer); 00058 00059 00060 /** get pointer to Mac header start point*/ 00061 #define mac_header_message_start_pointer(x) (&(x)->buf[0]) 00062 00063 00064 #endif /* MAC_HEADER_HELPER_FUNCTIONS_H_ */
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