uint16_t sn_coap_builder_calc_needed_packet_data_size_2(sn_coap_hdr_s *src_coap_msg_ptr, uint16_t blockwise_payload_size)
{
tr_debug("sn_coap_builder_calc_needed_packet_data_size_2");
uint16_t returned_byte_count = 0;
if (!src_coap_msg_ptr) {
return 0;
}
/* * * * * HEADER * * * * */
/* Header size is fixed */
returned_byte_count = COAP_HEADER_LENGTH;
/* * * * * OPTIONS * * * * */
/* If else than Reset message because Reset message must be empty */
if (src_coap_msg_ptr->msg_type != COAP_MSG_TYPE_RESET) {
uint16_t repeatable_option_size = 0;
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
bool is_blockwise_needed = false;
if ((src_coap_msg_ptr->payload_len > blockwise_payload_size) && (blockwise_payload_size > 0)) {
is_blockwise_needed = true;
}
#endif
/* TOKEN - Length is 1-8 bytes */
if (src_coap_msg_ptr->token_ptr != NULL) {
if (src_coap_msg_ptr->token_len > 8 || src_coap_msg_ptr->token_len < 1) { /* Check that option is not longer than defined */
return 0;
}
returned_byte_count += src_coap_msg_ptr->token_len;
}
/* URI PATH - Repeatable option. Length of one option is 0-255 */
/* Do not add uri-path for notification message.
* Uri-path is needed for cancelling observation with RESET message */
if (!src_coap_msg_ptr->options_list_ptr ||
(src_coap_msg_ptr->options_list_ptr && !src_coap_msg_ptr->options_list_ptr->observe_len && !src_coap_msg_ptr->options_list_ptr->observe_ptr)) {
if (src_coap_msg_ptr->uri_path_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->uri_path_len,
src_coap_msg_ptr->uri_path_ptr, COAP_OPTION_URI_PATH);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
return 0;
}
}
}
/* CONTENT TYPE - Length of this option is 0-2 bytes */
if (src_coap_msg_ptr->content_type_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->content_type_len > 2) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->content_type_len;
}
/* If options list pointer exists */
if (src_coap_msg_ptr->options_list_ptr != NULL) {
/* ACCEPT - Repeatable option. Length of this option is 0-2 bytes */
if (src_coap_msg_ptr->options_list_ptr->accept_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->accept_len,
src_coap_msg_ptr->options_list_ptr->accept_ptr, COAP_OPTION_ACCEPT);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
return 0;
}
}
/* MAX AGE - Length of this option is 0-4 bytes */
if (src_coap_msg_ptr->options_list_ptr->max_age_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->max_age_len > 4) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->max_age_len;
}
/* PROXY URI - Length of this option is 1-1034 bytes */
if (src_coap_msg_ptr->options_list_ptr->proxy_uri_ptr != NULL) {
if (src_coap_msg_ptr->options_list_ptr->proxy_uri_len >= 1 && src_coap_msg_ptr->options_list_ptr->proxy_uri_len <= 12) { /* Add option header byte(s) - depending of option length */
returned_byte_count++;
}
else if (src_coap_msg_ptr->options_list_ptr->proxy_uri_len >= 13 && src_coap_msg_ptr->options_list_ptr->proxy_uri_len <= 269) {
returned_byte_count += 2;
}
else if (src_coap_msg_ptr->options_list_ptr->proxy_uri_len >= 270 && src_coap_msg_ptr->options_list_ptr->proxy_uri_len <= 1034) {
returned_byte_count += 3;
}
else {
return 0;
}
/* Add needed memory for Option value */
returned_byte_count += src_coap_msg_ptr->options_list_ptr->proxy_uri_len;
}
/* ETAG - Repeatable option. Length of this option is 1-8 bytes*/
if (src_coap_msg_ptr->options_list_ptr->etag_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->etag_len,
src_coap_msg_ptr->options_list_ptr->etag_ptr, COAP_OPTION_ETAG);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
return 0;
}
}
/* URI HOST - Length of this option is 1-255 bytes */
if (src_coap_msg_ptr->options_list_ptr->uri_host_ptr != NULL) {
if (src_coap_msg_ptr->options_list_ptr->uri_host_len > 0 && src_coap_msg_ptr->options_list_ptr->uri_host_len <= 12) {
returned_byte_count++;
}
else if (src_coap_msg_ptr->options_list_ptr->uri_host_len >= 13 && src_coap_msg_ptr->options_list_ptr->uri_host_len <= 255) {
returned_byte_count += 2;
}
else {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->uri_host_len;
}
/* LOCATION PATH - Repeatable option. Length of this option is 0-255 bytes*/
if (src_coap_msg_ptr->options_list_ptr->location_path_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->location_path_len,
src_coap_msg_ptr->options_list_ptr->location_path_ptr, COAP_OPTION_LOCATION_PATH);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
return 0;
}
}
/* URI PORT - Length of this option is 0-2 bytes */
if (src_coap_msg_ptr->options_list_ptr->uri_port_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->uri_port_len > 2) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->uri_port_len;
}
/* lOCATION QUERY - Repeatable option. Length of this option is 0-255 bytes */
if (src_coap_msg_ptr->options_list_ptr->location_query_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->location_query_len,
src_coap_msg_ptr->options_list_ptr->location_query_ptr, COAP_OPTION_LOCATION_QUERY);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
return 0;
}
}
/* OBSERVE - Length of this option is 0-3 bytes */
if (src_coap_msg_ptr->options_list_ptr->observe_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->observe_len > 3) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->observe_len;
} else if (src_coap_msg_ptr->options_list_ptr->observe) {
returned_byte_count++;
}
/* URI QUERY - Repeatable option. Length of this option is 1-255 */
if (src_coap_msg_ptr->options_list_ptr->uri_query_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->uri_query_len,
src_coap_msg_ptr->options_list_ptr->uri_query_ptr, COAP_OPTION_URI_QUERY);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
return 0;
}
}
/* BLOCK 1 - Length of this option is 1-3 bytes*/
if (src_coap_msg_ptr->options_list_ptr->block1_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->block1_len > 3 || src_coap_msg_ptr->options_list_ptr->block1_len < 1) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->block1_len;
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
else if (is_blockwise_needed && src_coap_msg_ptr->msg_code < COAP_MSG_CODE_RESPONSE_CREATED) {
returned_byte_count += 2;
}
#endif
/* SIZE1 - Length of this option is 0-4 bytes */
if (src_coap_msg_ptr->options_list_ptr->size1_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->size1_len > 4) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->size1_len;
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
else if (is_blockwise_needed && src_coap_msg_ptr->msg_code < COAP_MSG_CODE_RESPONSE_CREATED){
returned_byte_count++;
if(src_coap_msg_ptr->payload_len < 0xFF) {
returned_byte_count++;
} else {
returned_byte_count += 2;
}
}
#endif
/* BLOCK 2 - Length of this option is 1-3 bytes*/
if (src_coap_msg_ptr->options_list_ptr->block2_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->block2_len > 3 || src_coap_msg_ptr->options_list_ptr->block2_len < 1) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->block2_len;
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
else if (is_blockwise_needed && src_coap_msg_ptr->msg_code >= COAP_MSG_CODE_RESPONSE_CREATED) {
returned_byte_count += 2;
}
#endif
/* SIZE2 - Length of this option is 0-4 bytes */
if (src_coap_msg_ptr->options_list_ptr->size2_ptr != NULL) {
returned_byte_count++;
if (src_coap_msg_ptr->options_list_ptr->size2_len > 4) {
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->size2_len;
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
else if (is_blockwise_needed && src_coap_msg_ptr->msg_code >= COAP_MSG_CODE_RESPONSE_CREATED){
returned_byte_count++;
if(src_coap_msg_ptr->payload_len < 0xFF) {
returned_byte_count++;
} else {
returned_byte_count += 2;
}
}
#endif
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
/* * * * * PAYLOAD * * * * */
if (is_blockwise_needed) {
/* Two bytes for Block option */
if (src_coap_msg_ptr->msg_code < COAP_MSG_CODE_RESPONSE_CREATED) {
returned_byte_count += sn_coap_builder_options_calculate_jump_need(src_coap_msg_ptr, 1);
} else { /* Response message */
returned_byte_count += sn_coap_builder_options_calculate_jump_need(src_coap_msg_ptr, 2);
}
/* Add maximum payload at one Blockwise message */
returned_byte_count += blockwise_payload_size;
returned_byte_count ++; /* For payload marker */
} else {
returned_byte_count += sn_coap_builder_options_calculate_jump_need(src_coap_msg_ptr, 0);
/* Add wanted payload */
returned_byte_count += src_coap_msg_ptr->payload_len;
if (src_coap_msg_ptr->payload_len) {
returned_byte_count ++; /* For payload marker */
}
}
#else
returned_byte_count += src_coap_msg_ptr->payload_len;
if (src_coap_msg_ptr->payload_len) {
returned_byte_count ++; /* For payload marker */
}
returned_byte_count += sn_coap_builder_options_calculate_jump_need(src_coap_msg_ptr, 0);
#endif
}
return returned_byte_count;
}
uint16_t sn_coap_builder_calc_needed_packet_data_size_2(sn_coap_hdr_s *src_coap_msg_ptr, uint16_t blockwise_payload_size)
{
(void)blockwise_payload_size;
uint16_t returned_byte_count = 0;
if (!src_coap_msg_ptr) {
return 0;
}
/* * * * * HEADER * * * * */
/* Header size is fixed */
returned_byte_count = COAP_HEADER_LENGTH;
/* * * * * OPTIONS * * * * */
/* If else than Reset message because Reset message must be empty */
if (src_coap_msg_ptr->msg_type != COAP_MSG_TYPE_RESET) {
uint16_t repeatable_option_size = 0;
/* TOKEN - Length is 1-8 bytes */
if (src_coap_msg_ptr->token_ptr != NULL) {
if (src_coap_msg_ptr->token_len > 8 || src_coap_msg_ptr->token_len < 1) { /* Check that option is not longer than defined */
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - token too large!");
return 0;
}
returned_byte_count += src_coap_msg_ptr->token_len;
}
/* URI PATH - Repeatable option. Length of one option is 0-255 */
if (src_coap_msg_ptr->uri_path_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->uri_path_len,
src_coap_msg_ptr->uri_path_ptr, COAP_OPTION_URI_PATH);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - uri path size failed!");
return 0;
}
}
uint16_t tempInt = 0;
/* CONTENT FORMAT - An integer option, up to 2 bytes */
if (src_coap_msg_ptr->content_format != COAP_CT_NONE) {
if ((uint32_t) src_coap_msg_ptr->content_format > 0xffff) {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - content format too large!");
return 0;
}
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->content_format, COAP_OPTION_CONTENT_FORMAT, &tempInt);
}
/* If options list pointer exists */
if (src_coap_msg_ptr->options_list_ptr != NULL) {
/* ACCEPT - An integer option, up to 2 bytes */
if (src_coap_msg_ptr->options_list_ptr->accept != COAP_CT_NONE) {
if ((uint32_t) src_coap_msg_ptr->options_list_ptr->accept > 0xffff) {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - accept too large!");
return 0;
}
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->accept, COAP_OPTION_ACCEPT, &tempInt);
}
/* MAX AGE - An integer option, omitted for default. Up to 4 bytes */
if (src_coap_msg_ptr->options_list_ptr->max_age != COAP_OPTION_MAX_AGE_DEFAULT) {
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->max_age, COAP_OPTION_MAX_AGE, &tempInt);
}
/* PROXY URI - Length of this option is 1-1034 bytes */
if (src_coap_msg_ptr->options_list_ptr->proxy_uri_ptr != NULL) {
if (src_coap_msg_ptr->options_list_ptr->proxy_uri_len >= 1 && src_coap_msg_ptr->options_list_ptr->proxy_uri_len <= 12) { /* Add option header byte(s) - depending of option length */
returned_byte_count++;
}
else if (src_coap_msg_ptr->options_list_ptr->proxy_uri_len >= 13 && src_coap_msg_ptr->options_list_ptr->proxy_uri_len <= 269) {
returned_byte_count += 2;
}
else if (src_coap_msg_ptr->options_list_ptr->proxy_uri_len >= 270 && src_coap_msg_ptr->options_list_ptr->proxy_uri_len <= 1034) {
returned_byte_count += 3;
}
else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - proxy uri too large!");
return 0;
}
/* Add needed memory for Option value */
returned_byte_count += src_coap_msg_ptr->options_list_ptr->proxy_uri_len;
}
/* ETAG - Repeatable option. Length of this option is 1-8 bytes*/
if (src_coap_msg_ptr->options_list_ptr->etag_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->etag_len,
src_coap_msg_ptr->options_list_ptr->etag_ptr, COAP_OPTION_ETAG);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - etag too large!");
return 0;
}
}
/* URI HOST - Length of this option is 1-255 bytes */
if (src_coap_msg_ptr->options_list_ptr->uri_host_ptr != NULL) {
if (src_coap_msg_ptr->options_list_ptr->uri_host_len > 0 && src_coap_msg_ptr->options_list_ptr->uri_host_len <= 12) {
returned_byte_count++;
}
else if (src_coap_msg_ptr->options_list_ptr->uri_host_len >= 13 && src_coap_msg_ptr->options_list_ptr->uri_host_len <= 255) {
returned_byte_count += 2;
}
else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - uri host too large!");
return 0;
}
returned_byte_count += src_coap_msg_ptr->options_list_ptr->uri_host_len;
}
/* LOCATION PATH - Repeatable option. Length of this option is 0-255 bytes*/
if (src_coap_msg_ptr->options_list_ptr->location_path_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->location_path_len,
src_coap_msg_ptr->options_list_ptr->location_path_ptr, COAP_OPTION_LOCATION_PATH);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - location path too large!");
return 0;
}
}
/* URI PORT - An integer option, up to 2 bytes */
if (src_coap_msg_ptr->options_list_ptr->uri_port != COAP_OPTION_URI_PORT_NONE) {
if ((uint32_t) src_coap_msg_ptr->options_list_ptr->uri_port > 0xffff) {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - uri port too large!");
return 0;
}
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->uri_port, COAP_OPTION_URI_PORT, &tempInt);
}
/* lOCATION QUERY - Repeatable option. Length of this option is 0-255 bytes */
if (src_coap_msg_ptr->options_list_ptr->location_query_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->location_query_len,
src_coap_msg_ptr->options_list_ptr->location_query_ptr, COAP_OPTION_LOCATION_QUERY);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - location query too large!");
return 0;
}
}
/* OBSERVE - An integer option, up to 3 bytes */
if (src_coap_msg_ptr->options_list_ptr->observe != COAP_OBSERVE_NONE) {
if ((uint32_t) src_coap_msg_ptr->options_list_ptr->observe > 0xffffff) {
return 0;
}
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->observe, COAP_OPTION_OBSERVE, &tempInt);
}
/* URI QUERY - Repeatable option. Length of this option is 1-255 */
if (src_coap_msg_ptr->options_list_ptr->uri_query_ptr != NULL) {
repeatable_option_size = sn_coap_builder_options_calc_option_size(src_coap_msg_ptr->options_list_ptr->uri_query_len,
src_coap_msg_ptr->options_list_ptr->uri_query_ptr, COAP_OPTION_URI_QUERY);
if (repeatable_option_size) {
returned_byte_count += repeatable_option_size;
} else {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - observe too large!");
return 0;
}
}
/* BLOCK 1 - An integer option, up to 3 bytes */
if (src_coap_msg_ptr->options_list_ptr->block1 != COAP_OPTION_BLOCK_NONE) {
if ((uint32_t) src_coap_msg_ptr->options_list_ptr->block1 > 0xffffff) {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - block1 too large!");
return 0;
}
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->block1, COAP_OPTION_BLOCK1, &tempInt);
}
/* SIZE1 - Length of this option is 0-4 bytes */
if (src_coap_msg_ptr->options_list_ptr->use_size1) {
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->size1, COAP_OPTION_SIZE1, &tempInt);
}
/* BLOCK 2 - An integer option, up to 3 bytes */
if (src_coap_msg_ptr->options_list_ptr->block2 != COAP_OPTION_BLOCK_NONE) {
if ((uint32_t) src_coap_msg_ptr->options_list_ptr->block2 > 0xffffff) {
tr_error("sn_coap_builder_calc_needed_packet_data_size_2 - block2 too large!");
return 0;
}
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->block2, COAP_OPTION_BLOCK2, &tempInt);
}
/* SIZE2 - Length of this option is 0-4 bytes */
if (src_coap_msg_ptr->options_list_ptr->use_size2) {
returned_byte_count += sn_coap_builder_options_build_add_uint_option(NULL, src_coap_msg_ptr->options_list_ptr->size2, COAP_OPTION_SIZE2, &tempInt);
}
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
if ((src_coap_msg_ptr->payload_len > blockwise_payload_size) && (blockwise_payload_size > 0)) {
returned_byte_count += blockwise_payload_size;
} else {
returned_byte_count += src_coap_msg_ptr->payload_len;
}
#else
returned_byte_count += src_coap_msg_ptr->payload_len;
#endif
if (src_coap_msg_ptr->payload_len) {
returned_byte_count ++; /* For payload marker */
}
returned_byte_count += sn_coap_builder_options_calculate_jump_need(src_coap_msg_ptr/*, 0*/);
}
return returned_byte_count;
}
