Ram Gandikota / Mbed OS ABCD

A metronome using the FRDM K64F board

mbed-client/source/m2mblockmessage.cpp@0:a7a43371b306, 2017-05-14 (annotated)

Committer:
ram54288
Date:
Sun May 14 18:40:18 2017 +0000
Revision:
0:a7a43371b306
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ram54288 0:a7a43371b306 1 /*
ram54288 0:a7a43371b306 2 * Copyright (c) 2015 ARM Limited. All rights reserved.
ram54288 0:a7a43371b306 3 * SPDX-License-Identifier: Apache-2.0
ram54288 0:a7a43371b306 4 * Licensed under the Apache License, Version 2.0 (the License); you may
ram54288 0:a7a43371b306 5 * not use this file except in compliance with the License.
ram54288 0:a7a43371b306 6 * You may obtain a copy of the License at
ram54288 0:a7a43371b306 7 *
ram54288 0:a7a43371b306 8 * http://www.apache.org/licenses/LICENSE-2.0
ram54288 0:a7a43371b306 9 *
ram54288 0:a7a43371b306 10 * Unless required by applicable law or agreed to in writing, software
ram54288 0:a7a43371b306 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
ram54288 0:a7a43371b306 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ram54288 0:a7a43371b306 13 * See the License for the specific language governing permissions and
ram54288 0:a7a43371b306 14 * limitations under the License.
ram54288 0:a7a43371b306 15 */
ram54288 0:a7a43371b306 16 #include "mbed-client/m2mblockmessage.h"
ram54288 0:a7a43371b306 17 #include "mbed-client/m2mconfig.h"
ram54288 0:a7a43371b306 18 #include <stdlib.h>
ram54288 0:a7a43371b306 19 #include <string.h>
ram54288 0:a7a43371b306 20
ram54288 0:a7a43371b306 21 M2MBlockMessage::M2MBlockMessage() :
ram54288 0:a7a43371b306 22 _block_data_ptr(NULL),
ram54288 0:a7a43371b306 23 _total_message_size(0),
ram54288 0:a7a43371b306 24 _block_data_len(0),
ram54288 0:a7a43371b306 25 _block_number(0),
ram54288 0:a7a43371b306 26 _error_code(M2MBlockMessage::ErrorNone),
ram54288 0:a7a43371b306 27 _is_last_block(false),
ram54288 0:a7a43371b306 28 _is_block_message(false)
ram54288 0:a7a43371b306 29 {
ram54288 0:a7a43371b306 30 }
ram54288 0:a7a43371b306 31
ram54288 0:a7a43371b306 32 M2MBlockMessage::~M2MBlockMessage()
ram54288 0:a7a43371b306 33 {
ram54288 0:a7a43371b306 34 free(_block_data_ptr);
ram54288 0:a7a43371b306 35 _block_data_ptr = NULL;
ram54288 0:a7a43371b306 36 }
ram54288 0:a7a43371b306 37
ram54288 0:a7a43371b306 38 void M2MBlockMessage::set_message_info(sn_coap_hdr_s *coap_header)
ram54288 0:a7a43371b306 39 {
ram54288 0:a7a43371b306 40 _is_block_message = (coap_header &&
ram54288 0:a7a43371b306 41 coap_header->options_list_ptr &&
ram54288 0:a7a43371b306 42 coap_header->options_list_ptr->block1 != -1) ? true : false;
ram54288 0:a7a43371b306 43
ram54288 0:a7a43371b306 44 if (coap_header && coap_header->options_list_ptr) {
ram54288 0:a7a43371b306 45 // Check total size
ram54288 0:a7a43371b306 46 if (coap_header->options_list_ptr->use_size1) {
ram54288 0:a7a43371b306 47 _total_message_size = coap_header->options_list_ptr->size1;
ram54288 0:a7a43371b306 48 }
ram54288 0:a7a43371b306 49
ram54288 0:a7a43371b306 50 // Default value in coap library is 65kb
ram54288 0:a7a43371b306 51 uint32_t max_size = SN_COAP_MAX_INCOMING_MESSAGE_SIZE;
ram54288 0:a7a43371b306 52 if (_total_message_size > max_size) {
ram54288 0:a7a43371b306 53 _error_code = M2MBlockMessage::EntityTooLarge;
ram54288 0:a7a43371b306 54 } else {
ram54288 0:a7a43371b306 55 _error_code = M2MBlockMessage::ErrorNone;
ram54288 0:a7a43371b306 56 }
ram54288 0:a7a43371b306 57 if (M2MBlockMessage::ErrorNone == _error_code) {
ram54288 0:a7a43371b306 58 // Is last block
ram54288 0:a7a43371b306 59 if (coap_header->options_list_ptr->block1 != -1) {
ram54288 0:a7a43371b306 60 // if (!(*(coap_header->options_list_ptr->block1_ptr + (coap_header->options_list_ptr->block1_len - 1)) & 0x08)) {
ram54288 0:a7a43371b306 61 if (!((coap_header->options_list_ptr->block1) & 0x08)) {
ram54288 0:a7a43371b306 62 _is_last_block = true;
ram54288 0:a7a43371b306 63 } else {
ram54288 0:a7a43371b306 64 _is_last_block = false;
ram54288 0:a7a43371b306 65 }
ram54288 0:a7a43371b306 66 }
ram54288 0:a7a43371b306 67
ram54288 0:a7a43371b306 68 _block_number = coap_header->options_list_ptr->block1 >> 4;
ram54288 0:a7a43371b306 69 // Block number
ram54288 0:a7a43371b306 70 // if (coap_header->options_list_ptr->block1_len == 3) {
ram54288 0:a7a43371b306 71 // _block_number = *(coap_header->options_list_ptr->block1_ptr) << 12;
ram54288 0:a7a43371b306 72 // _block_number |= *(coap_header->options_list_ptr->block1_ptr + 1) << 4;
ram54288 0:a7a43371b306 73 // _block_number |= (*(coap_header->options_list_ptr->block1_ptr + 2)) >> 4;
ram54288 0:a7a43371b306 74 // }
ram54288 0:a7a43371b306 75
ram54288 0:a7a43371b306 76 // else if (coap_header->options_list_ptr->block1_len == 2) {
ram54288 0:a7a43371b306 77 // _block_number = *(coap_header->options_list_ptr->block1_ptr) << 4;
ram54288 0:a7a43371b306 78 // _block_number |= (*(coap_header->options_list_ptr->block1_ptr + 1)) >> 4;
ram54288 0:a7a43371b306 79 // }
ram54288 0:a7a43371b306 80 // else if (coap_header->options_list_ptr->block1_len == 1) {
ram54288 0:a7a43371b306 81 // _block_number = (*coap_header->options_list_ptr->block1_ptr) >> 4;
ram54288 0:a7a43371b306 82 // }
ram54288 0:a7a43371b306 83 // else {
ram54288 0:a7a43371b306 84 // _block_number = 0;
ram54288 0:a7a43371b306 85 // }
ram54288 0:a7a43371b306 86
ram54288 0:a7a43371b306 87 // Payload
ram54288 0:a7a43371b306 88 free(_block_data_ptr);
ram54288 0:a7a43371b306 89 _block_data_ptr = NULL;
ram54288 0:a7a43371b306 90 _block_data_len = coap_header->payload_len;
ram54288 0:a7a43371b306 91 if(_block_data_len > 0) {
ram54288 0:a7a43371b306 92 _block_data_ptr = (uint8_t *)malloc(_block_data_len);
ram54288 0:a7a43371b306 93 if (_block_data_ptr) {
ram54288 0:a7a43371b306 94 memcpy(_block_data_ptr, coap_header->payload_ptr, _block_data_len);
ram54288 0:a7a43371b306 95 }
ram54288 0:a7a43371b306 96 }
ram54288 0:a7a43371b306 97 }
ram54288 0:a7a43371b306 98 }
ram54288 0:a7a43371b306 99 }
ram54288 0:a7a43371b306 100
ram54288 0:a7a43371b306 101 void M2MBlockMessage::clear_values()
ram54288 0:a7a43371b306 102 {
ram54288 0:a7a43371b306 103 free(_block_data_ptr);
ram54288 0:a7a43371b306 104 _block_data_ptr = NULL;
ram54288 0:a7a43371b306 105 _block_data_len = 0;
ram54288 0:a7a43371b306 106 _block_number = 0;
ram54288 0:a7a43371b306 107 _total_message_size = 0;
ram54288 0:a7a43371b306 108 _is_last_block = false;
ram54288 0:a7a43371b306 109 _error_code = M2MBlockMessage::ErrorNone;
ram54288 0:a7a43371b306 110 }
ram54288 0:a7a43371b306 111
ram54288 0:a7a43371b306 112 bool M2MBlockMessage::is_block_message() const
ram54288 0:a7a43371b306 113 {
ram54288 0:a7a43371b306 114 return _is_block_message;
ram54288 0:a7a43371b306 115 }
ram54288 0:a7a43371b306 116
ram54288 0:a7a43371b306 117 uint16_t M2MBlockMessage::block_number() const
ram54288 0:a7a43371b306 118 {
ram54288 0:a7a43371b306 119 return _block_number;
ram54288 0:a7a43371b306 120 }
ram54288 0:a7a43371b306 121
ram54288 0:a7a43371b306 122 uint32_t M2MBlockMessage::total_message_size() const
ram54288 0:a7a43371b306 123 {
ram54288 0:a7a43371b306 124 return _total_message_size;
ram54288 0:a7a43371b306 125 }
ram54288 0:a7a43371b306 126
ram54288 0:a7a43371b306 127 bool M2MBlockMessage::is_last_block() const
ram54288 0:a7a43371b306 128 {
ram54288 0:a7a43371b306 129 return _is_last_block;
ram54288 0:a7a43371b306 130 }
ram54288 0:a7a43371b306 131
ram54288 0:a7a43371b306 132 uint8_t* M2MBlockMessage::block_data() const
ram54288 0:a7a43371b306 133 {
ram54288 0:a7a43371b306 134 return _block_data_ptr;
ram54288 0:a7a43371b306 135 }
ram54288 0:a7a43371b306 136
ram54288 0:a7a43371b306 137 uint32_t M2MBlockMessage::block_data_len() const
ram54288 0:a7a43371b306 138 {
ram54288 0:a7a43371b306 139 return _block_data_len;
ram54288 0:a7a43371b306 140 }
ram54288 0:a7a43371b306 141
ram54288 0:a7a43371b306 142 M2MBlockMessage::Error M2MBlockMessage::error_code() const
ram54288 0:a7a43371b306 143 {
ram54288 0:a7a43371b306 144 return _error_code;
ram54288 0:a7a43371b306 145 }