Mayank Gupta
Example
Dependencies: FXAS21002 FXOS8700Q
simple-mbed-cloud-client/mbed-cloud-client/mbed-client/mbed-client-c/source/sn_nsdl.c
- Committer:
- maygup01
- Date:
- 2019-11-19
- Revision:
- 0:11cc2b7889af
File content as of revision 0:11cc2b7889af:
/*
* Copyright (c) 2011-2015 ARM Limited. All rights reserved.
* 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.
*/
/**
* \file sn_nsdl.c
*
* \brief Nano service device library
*
*/
// Needed for PRIu64 on FreeRTOS
#include <stdio.h>
// Note: this macro is needed on armcc to get the the limit macros like UINT16_MAX
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS
#endif
// Note: this macro is needed on armcc to get the the PRI*32 macros
// from inttypes.h in a C++ code.
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
#include <string.h>
#include <assert.h>
#include "ns_types.h"
#include "sn_nsdl.h"
#include "sn_coap_header.h"
#include "sn_coap_protocol.h"
#include "source/include/sn_coap_protocol_internal.h"
#include "sn_nsdl_lib.h"
#include "sn_grs.h"
#include "mbed-trace/mbed_trace.h"
#include "mbedtls/base64.h"
#include "common_functions.h"
#include "randLIB.h"
#include <stdlib.h>
/* Defines */
#define TRACE_GROUP "mClt"
#define RESOURCE_DIR_LEN 2
#define EP_NAME_PARAMETERS_LEN 3
#define ET_PARAMETER_LEN 3
#define LT_PARAMETER_LEN 3
#define DOMAIN_PARAMETER_LEN 2
#define RT_PARAMETER_LEN 3
#define IF_PARAMETER_LEN 3
#define NAME_PARAMETER_LEN 5
#define OBS_PARAMETER_LEN 3
#define AOBS_PARAMETER_LEN 5
#define COAP_CON_PARAMETER_LEN 3
#define BS_EP_PARAMETER_LEN 3
#define BS_QUEUE_MODE_PARAMETER_LEN 2
#define RESOURCE_VALUE_PARAMETER_LEN 2
#define FIRMWARE_DOWNLOAD_LEN 2
#define GENERIC_DOWNLOAD_LEN 8
#define SN_NSDL_EP_REGISTER_MESSAGE 1
#define SN_NSDL_EP_UPDATE_MESSAGE 2
#if defined MBED_CONF_MBED_CLIENT_COAP_DISABLE_OBS_FEATURE
#define COAP_DISABLE_OBS_FEATURE MBED_CONF_MBED_CLIENT_COAP_DISABLE_OBS_FEATURE
#endif
#if defined MBED_CONF_MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
#define MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE MBED_CONF_MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
#endif
/* Constants */
static uint8_t ep_name_parameter_string[] = {'e', 'p', '='}; /* Endpoint name. A unique name for the registering node in a domain. */
static uint8_t resource_path_ptr[] = {'r', 'd'}; /* For resource directory */
static uint8_t resource_type_parameter[] = {'r', 't', '='}; /* Resource type. Only once for registration */
#ifndef COAP_DISABLE_OBS_FEATURE
static uint8_t obs_parameter[] = {'o', 'b', 's'}; /* Observable */
static uint8_t aobs_parameter[] = {'a', 'o', 'b', 's', '='}; /* Auto observable */
#endif
static uint8_t if_description_parameter[] = {'i', 'f', '='}; /* Interface description. Only once */
static uint8_t ep_lifetime_parameter[] = {'l', 't', '='}; /* Lifetime. Number of seconds that this registration will be valid for. Must be updated within this time, or will be removed. */
static uint8_t ep_domain_parameter[] = {'d', '='}; /* Domain name. If this parameter is missing, a default domain is assumed. */
static uint8_t coap_con_type_parameter[] = {'c', 't', '='}; /* CoAP content type */
static uint8_t resource_value[] = {'v', '='}; /* Resource value */
#ifdef RESOURCE_ATTRIBUTES_LIST
static uint8_t name_parameter[] = {'n', 'a', 'm', 'e', '='};
#endif
static uint8_t firmware_download_uri[] = {'f', 'w'}; /* Path for firmware update. */
static uint8_t generic_download_uri[] = {'d', 'o', 'w', 'n', 'l', 'o', 'a', 'd'}; /* Path for generic download. */
/* * OMA BS parameters * */
static uint8_t bs_uri[] = {'b', 's'};
static uint8_t bs_ep_name[] = {'e', 'p', '='};
static uint8_t et_parameter[] = {'e', 't', '='}; /* Endpoint type */
static uint8_t bs_queue_mode[] = {'b', '='};
/* Function prototypes */
static int32_t sn_nsdl_internal_coap_send(struct nsdl_s *handle, sn_coap_hdr_s *coap_header_ptr, sn_nsdl_addr_s *dst_addr_ptr);
static void sn_nsdl_resolve_nsp_address(struct nsdl_s *handle);
int8_t sn_nsdl_build_registration_body(struct nsdl_s *handle, sn_coap_hdr_s *message_ptr, uint8_t updating_registeration);
static uint16_t sn_nsdl_calculate_registration_body_size(struct nsdl_s *handle, uint8_t updating_registeration, int8_t *error);
static uint8_t sn_nsdl_calculate_uri_query_option_len(sn_nsdl_ep_parameters_s *endpoint_info_ptr, uint8_t msg_type, const char *uri_query);
static int8_t sn_nsdl_fill_uri_query_options(struct nsdl_s *handle, sn_nsdl_ep_parameters_s *parameter_ptr, sn_coap_hdr_s *source_msg_ptr, uint8_t msg_type, const char *uri_query);
static int8_t sn_nsdl_local_rx_function(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr);
static int8_t sn_nsdl_resolve_ep_information(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr);
static uint8_t sn_nsdl_itoa_len(uint32_t value);
static uint8_t *sn_nsdl_itoa(uint8_t *ptr, uint32_t value);
static int8_t set_endpoint_info(struct nsdl_s *handle, sn_nsdl_ep_parameters_s *endpoint_info_ptr);
static bool validateParameters(sn_nsdl_ep_parameters_s *parameter_ptr);
static bool validate(uint8_t* ptr, uint32_t len, char illegalChar);
static bool sn_nsdl_check_uint_overflow(uint16_t resource_size, uint16_t param_a, uint16_t param_b);
static void remove_previous_block_data(struct nsdl_s *handle, sn_nsdl_addr_s *src_ptr, const uint32_t block_number);
static bool update_last_block_data(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, bool block1);
#if MBED_CONF_MBED_TRACE_ENABLE
static const char* sn_nsdl_coap_status_description(sn_coap_status_e status);
static const char* sn_nsdl_coap_message_code_desc(int msg_code);
static const char* sn_nsdl_coap_message_type_desc(int msg_type);
#endif
static void sn_nsdl_add_token(struct nsdl_s *handle, uint32_t *token, sn_coap_hdr_s *message_ptr);
int8_t sn_nsdl_destroy(struct nsdl_s *handle)
{
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
if (handle->ep_information_ptr) {
handle->sn_nsdl_free(handle->ep_information_ptr->endpoint_name_ptr);
handle->sn_nsdl_free(handle->ep_information_ptr->domain_name_ptr);
handle->sn_nsdl_free(handle->ep_information_ptr->location_ptr);
handle->sn_nsdl_free(handle->ep_information_ptr->type_ptr);
handle->sn_nsdl_free(handle->ep_information_ptr->lifetime_ptr);
handle->sn_nsdl_free(handle->ep_information_ptr);
}
if (handle->server_address.addr_ptr) {
handle->sn_nsdl_free(handle->server_address.addr_ptr);
handle->server_address.addr_ptr = NULL;
handle->server_address.type = SN_NSDL_ADDRESS_TYPE_NONE;
}
/* Destroy also libCoap and grs part of libNsdl */
sn_coap_protocol_destroy(handle->grs->coap);
sn_grs_destroy(handle->grs);
handle->sn_nsdl_free(handle);
return SN_NSDL_SUCCESS;
}
struct nsdl_s *sn_nsdl_init(uint8_t (*sn_nsdl_tx_cb)(struct nsdl_s *, sn_nsdl_capab_e , uint8_t *, uint16_t, sn_nsdl_addr_s *),
uint8_t (*sn_nsdl_rx_cb)(struct nsdl_s *, sn_coap_hdr_s *, sn_nsdl_addr_s *),
void *(*sn_nsdl_alloc)(uint16_t), void (*sn_nsdl_free)(void *),
uint8_t (*sn_nsdl_auto_obs_token_cb)(struct nsdl_s *, const char *, uint8_t *))
{
/* Check pointers and define function pointers */
if (!sn_nsdl_alloc || !sn_nsdl_free || !sn_nsdl_tx_cb || !sn_nsdl_rx_cb) {
return NULL;
}
struct nsdl_s *handle = NULL;
handle = sn_nsdl_alloc(sizeof(struct nsdl_s));
if (handle == NULL) {
return NULL;
}
memset(handle, 0, sizeof(struct nsdl_s));
/* Define function pointers */
handle->sn_nsdl_alloc = sn_nsdl_alloc;
handle->sn_nsdl_free = sn_nsdl_free;
handle->sn_nsdl_tx_callback = sn_nsdl_tx_cb;
handle->sn_nsdl_rx_callback = sn_nsdl_rx_cb;
handle->sn_nsdl_auto_obs_token_callback = sn_nsdl_auto_obs_token_cb;
/* Initialize ep parameters struct */
if (!handle->ep_information_ptr) {
handle->ep_information_ptr = handle->sn_nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s));
if (!handle->ep_information_ptr) {
sn_nsdl_free(handle);
return NULL;
}
memset(handle->ep_information_ptr, 0, sizeof(sn_nsdl_ep_parameters_s));
}
handle->grs = sn_grs_init(sn_nsdl_tx_cb, &sn_nsdl_local_rx_function, sn_nsdl_alloc, sn_nsdl_free);
/* Initialize GRS */
if (handle->grs == NULL) {
handle->sn_nsdl_free(handle->ep_information_ptr);
handle->ep_information_ptr = 0;
sn_nsdl_free(handle);
return NULL;
}
sn_nsdl_resolve_nsp_address(handle);
handle->sn_nsdl_endpoint_registered = SN_NSDL_ENDPOINT_NOT_REGISTERED;
handle->context = NULL;
randLIB_get_n_bytes_random(&handle->token_seed, sizeof(handle->token_seed));
if (handle->token_seed == 0) {
handle->token_seed++;
}
return handle;
}
uint16_t sn_nsdl_register_endpoint(struct nsdl_s *handle,
sn_nsdl_ep_parameters_s *endpoint_info_ptr,
const char *uri_query_parameters)
{
/* Local variables */
sn_coap_hdr_s *register_message_ptr;
uint16_t message_id = 0;
if (endpoint_info_ptr == NULL || handle == NULL) {
return 0;
}
// Clear any leftovers from previous registration or bootstrap
sn_nsdl_clear_coap_sent_blockwise_messages(handle);
sn_nsdl_clear_coap_received_blockwise_messages(handle);
sn_nsdl_clear_coap_resending_queue(handle);
/*** Build endpoint register message ***/
handle->is_bs_server = false;
/* Allocate memory for header struct */
register_message_ptr = sn_coap_parser_alloc_message(handle->grs->coap);
if (register_message_ptr == NULL) {
return 0;
}
/* Fill message fields -> confirmable post to specified NSP path */
register_message_ptr->msg_type = COAP_MSG_TYPE_CONFIRMABLE;
register_message_ptr->msg_code = COAP_MSG_CODE_REQUEST_POST;
/* Allocate memory for the extended options list */
if (sn_coap_parser_alloc_options(handle->grs->coap, register_message_ptr) == NULL) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
register_message_ptr = 0;
return 0;
}
register_message_ptr->uri_path_len = sizeof(resource_path_ptr);
register_message_ptr->uri_path_ptr = resource_path_ptr;
/* Fill Uri-query options */
if( SN_NSDL_FAILURE == sn_nsdl_fill_uri_query_options(handle, endpoint_info_ptr,
register_message_ptr, SN_NSDL_EP_REGISTER_MESSAGE,
uri_query_parameters) ){
register_message_ptr->uri_path_ptr = NULL;
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return 0;
}
if (endpoint_info_ptr->ds_register_mode == REGISTER_WITH_RESOURCES) {
/* Built body for message */
if (sn_nsdl_build_registration_body(handle, register_message_ptr, 0) == SN_NSDL_FAILURE) {
register_message_ptr->uri_path_ptr = NULL;
register_message_ptr->options_list_ptr->uri_host_ptr = NULL;
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return 0;
}
}
tr_info("REGISTER MESSAGE %.*s", register_message_ptr->payload_len, register_message_ptr->payload_ptr);
/* Clean (possible) existing and save new endpoint info to handle */
if (set_endpoint_info(handle, endpoint_info_ptr) == -1) {
handle->sn_nsdl_free(register_message_ptr->payload_ptr);
register_message_ptr->payload_ptr = NULL;
register_message_ptr->uri_path_ptr = NULL;
register_message_ptr->options_list_ptr->uri_host_ptr = NULL;
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return 0;
}
sn_nsdl_add_token(handle, &handle->register_token, register_message_ptr);
/* Build and send coap message to NSP */
message_id = sn_nsdl_internal_coap_send(handle, register_message_ptr, &handle->server_address);
handle->sn_nsdl_free(register_message_ptr->payload_ptr);
register_message_ptr->payload_ptr = NULL;
register_message_ptr->uri_path_ptr = NULL;
register_message_ptr->options_list_ptr->uri_host_ptr = NULL;
register_message_ptr->token_ptr = NULL;
register_message_ptr->token_len = 0;
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return message_id;
}
int32_t sn_nsdl_unregister_endpoint(struct nsdl_s *handle)
{
/* Local variables */
sn_coap_hdr_s *unregister_message_ptr;
uint8_t *temp_ptr = 0;
int32_t message_id = 0;
/* Check parameters */
if (handle == NULL) {
return 0;
}
/* Check that EP have been registered */
if (sn_nsdl_is_ep_registered(handle)) {
/* Memory allocation for unregister message */
unregister_message_ptr = sn_coap_parser_alloc_message(handle->grs->coap);
if (!unregister_message_ptr) {
return 0;
}
/* Fill unregister message */
unregister_message_ptr->msg_type = COAP_MSG_TYPE_CONFIRMABLE;
unregister_message_ptr->msg_code = COAP_MSG_CODE_REQUEST_DELETE;
if(handle->ep_information_ptr->location_ptr) {
unregister_message_ptr->uri_path_len = handle->ep_information_ptr->location_len;
unregister_message_ptr->uri_path_ptr = handle->sn_nsdl_alloc(unregister_message_ptr->uri_path_len);
if (!unregister_message_ptr->uri_path_ptr) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, unregister_message_ptr);
return 0;
}
temp_ptr = unregister_message_ptr->uri_path_ptr;
memcpy(temp_ptr , handle->ep_information_ptr->location_ptr, handle->ep_information_ptr->location_len);
} else {
unregister_message_ptr->uri_path_len = (RESOURCE_DIR_LEN + 1 + handle->ep_information_ptr->domain_name_len + 1 + handle->ep_information_ptr->endpoint_name_len);
unregister_message_ptr->uri_path_ptr = handle->sn_nsdl_alloc(unregister_message_ptr->uri_path_len);
if (!unregister_message_ptr->uri_path_ptr) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, unregister_message_ptr);
return 0;
}
temp_ptr = unregister_message_ptr->uri_path_ptr;
memcpy(temp_ptr, resource_path_ptr, RESOURCE_DIR_LEN);
temp_ptr += RESOURCE_DIR_LEN;
*temp_ptr++ = '/';
memcpy(temp_ptr , handle->ep_information_ptr->domain_name_ptr, handle->ep_information_ptr->domain_name_len);
temp_ptr += handle->ep_information_ptr->domain_name_len;
*temp_ptr++ = '/';
memcpy(temp_ptr , handle->ep_information_ptr->endpoint_name_ptr, handle->ep_information_ptr->endpoint_name_len);
}
sn_nsdl_add_token(handle, &handle->unregister_token, unregister_message_ptr);
/* Send message */
message_id = sn_nsdl_internal_coap_send(handle, unregister_message_ptr, &handle->server_address);
unregister_message_ptr->token_ptr = NULL;
unregister_message_ptr->token_len = 0;
/* Free memory */
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, unregister_message_ptr);
}
return message_id;
}
int32_t sn_nsdl_update_registration(struct nsdl_s *handle, uint8_t *lt_ptr, uint8_t lt_len)
{
/* Local variables */
sn_coap_hdr_s *register_message_ptr;
uint8_t *temp_ptr;
sn_nsdl_ep_parameters_s temp_parameters;
int32_t message_id = 0;
/* Check parameters */
if (handle == NULL) {
return -1;
}
if (!sn_nsdl_is_ep_registered(handle)){
return -1;
}
memset(&temp_parameters, 0, sizeof(sn_nsdl_ep_parameters_s));
temp_parameters.lifetime_len = lt_len;
temp_parameters.lifetime_ptr = lt_ptr;
if (handle->ep_information_ptr) {
temp_parameters.type_len = handle->ep_information_ptr->type_len;
temp_parameters.type_ptr = handle->ep_information_ptr->type_ptr;
}
/*** Build endpoint register update message ***/
/* Allocate memory for header struct */
register_message_ptr = sn_coap_parser_alloc_message(handle->grs->coap);
if (register_message_ptr == NULL) {
return -2;
}
/* Fill message fields -> confirmable post to specified NSP path */
register_message_ptr->msg_type = COAP_MSG_TYPE_CONFIRMABLE;
register_message_ptr->msg_code = COAP_MSG_CODE_REQUEST_POST;
if(handle->ep_information_ptr->location_ptr) {
register_message_ptr->uri_path_len = handle->ep_information_ptr->location_len; /* = Only location set by Device Server*/
register_message_ptr->uri_path_ptr = handle->sn_nsdl_alloc(register_message_ptr->uri_path_len);
if (!register_message_ptr->uri_path_ptr) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return -2;
}
temp_ptr = register_message_ptr->uri_path_ptr;
/* location */
memcpy(temp_ptr, handle->ep_information_ptr->location_ptr, handle->ep_information_ptr->location_len);
} else {
register_message_ptr->uri_path_len = sizeof(resource_path_ptr) + handle->ep_information_ptr->domain_name_len + handle->ep_information_ptr->endpoint_name_len + 2; /* = rd/domain/endpoint */
register_message_ptr->uri_path_ptr = handle->sn_nsdl_alloc(register_message_ptr->uri_path_len);
if (!register_message_ptr->uri_path_ptr) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return -2;
}
temp_ptr = register_message_ptr->uri_path_ptr;
/* rd/ */
memcpy(temp_ptr, resource_path_ptr, sizeof(resource_path_ptr));
temp_ptr += sizeof(resource_path_ptr);
*temp_ptr++ = '/';
/* rd/DOMAIN/ */
memcpy(temp_ptr, handle->ep_information_ptr->domain_name_ptr, handle->ep_information_ptr->domain_name_len);
temp_ptr += handle->ep_information_ptr->domain_name_len;
*temp_ptr++ = '/';
/* rd/domain/ENDPOINT */
memcpy(temp_ptr, handle->ep_information_ptr->endpoint_name_ptr, handle->ep_information_ptr->endpoint_name_len);
}
/* Allocate memory for the extended options list */
if (sn_coap_parser_alloc_options(handle->grs->coap, register_message_ptr) == NULL) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return -2;
}
/* Fill Uri-query options */
sn_nsdl_fill_uri_query_options(handle, &temp_parameters, register_message_ptr, SN_NSDL_EP_UPDATE_MESSAGE, NULL);
/* Build payload */
if (handle->ep_information_ptr->ds_register_mode == REGISTER_WITH_RESOURCES) {
if (sn_nsdl_build_registration_body(handle, register_message_ptr, 1) == SN_NSDL_FAILURE) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
return -2;
}
}
// Remove previous update reg message from the queue if exists
sn_nsdl_remove_msg_from_retransmission(handle,
(uint8_t*)&handle->update_register_token,
sizeof(handle->update_register_token));
sn_nsdl_add_token(handle, &handle->update_register_token, register_message_ptr);
/* Build and send coap message to NSP */
message_id = sn_nsdl_internal_coap_send(handle, register_message_ptr, &handle->server_address);
register_message_ptr->token_ptr = NULL;
register_message_ptr->token_len = 0;
handle->sn_nsdl_free(register_message_ptr->payload_ptr);
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, register_message_ptr);
if (message_id == 0) {
// Failure when sending
return -2;
}
return message_id;
}
int8_t sn_nsdl_set_endpoint_location(struct nsdl_s *handle, uint8_t *location_ptr, uint8_t location_len)
{
if(!handle || !location_ptr || (location_len == 0)) {
return -1;
}
handle->sn_nsdl_free(handle->ep_information_ptr->location_ptr);
handle->ep_information_ptr->location_ptr = handle->sn_nsdl_alloc(location_len);
memcpy(handle->ep_information_ptr->location_ptr, location_ptr, location_len);
handle->ep_information_ptr->location_len = location_len;
return 0;
}
void sn_nsdl_nsp_lost(struct nsdl_s *handle)
{
/* Check parameters */
if (handle == NULL) {
return;
}
handle->sn_nsdl_endpoint_registered = SN_NSDL_ENDPOINT_NOT_REGISTERED;
}
int8_t sn_nsdl_is_ep_registered(struct nsdl_s *handle)
{
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return handle->sn_nsdl_endpoint_registered;
}
int32_t sn_nsdl_send_observation_notification(struct nsdl_s *handle, uint8_t *token_ptr, uint8_t token_len,
uint8_t *payload_ptr, uint16_t payload_len, sn_coap_observe_e observe, sn_coap_msg_type_e message_type,
sn_coap_content_format_e content_format,
const int32_t message_id)
{
sn_coap_hdr_s *notification_message_ptr;
int32_t return_msg_id = 0;
/* Check parameters */
if (handle == NULL || handle->grs == NULL || token_len == 0) {
return 0;
}
/* Allocate and initialize memory for header struct */
notification_message_ptr = sn_coap_parser_alloc_message(handle->grs->coap);
if (notification_message_ptr == NULL) {
return 0;
}
if (sn_coap_parser_alloc_options(handle->grs->coap, notification_message_ptr) == NULL) {
handle->sn_nsdl_free(notification_message_ptr);
return 0;
}
/* Fill header */
notification_message_ptr->msg_type = message_type;
notification_message_ptr->msg_code = COAP_MSG_CODE_RESPONSE_CONTENT;
/* Fill token */
notification_message_ptr->token_len = token_len;
notification_message_ptr->token_ptr = token_ptr;
/* Fill payload */
notification_message_ptr->payload_len = payload_len;
notification_message_ptr->payload_ptr = payload_ptr;
/* Fill observe */
notification_message_ptr->options_list_ptr->observe = observe;
/* Fill content format */
notification_message_ptr->content_format = content_format;
if (message_id != -1) {
notification_message_ptr->msg_id = message_id;
}
/* Send message */
return_msg_id = sn_nsdl_send_coap_message(handle, &handle->server_address, notification_message_ptr);
if (return_msg_id >= SN_NSDL_SUCCESS) {
return_msg_id = notification_message_ptr->msg_id;
}
/* Free memory */
notification_message_ptr->payload_ptr = NULL;
notification_message_ptr->token_ptr = NULL;
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, notification_message_ptr);
return return_msg_id;
}
/* * * * * * * * * * */
/* ~ OMA functions ~ */
/* * * * * * * * * * */
uint16_t sn_nsdl_oma_bootstrap(struct nsdl_s *handle,
sn_nsdl_addr_s *bootstrap_address_ptr,
sn_nsdl_ep_parameters_s *endpoint_info_ptr,
const char *uri_query_parameters)
{
#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
/* Local variables */
sn_coap_hdr_s bootstrap_coap_header;
uint8_t *uri_query_tmp_ptr;
uint16_t message_id = 0;
/* Check parameters */
if (!bootstrap_address_ptr || !endpoint_info_ptr || !handle) {
return 0;
}
if (set_NSP_address(handle,
bootstrap_address_ptr->addr_ptr,
bootstrap_address_ptr->addr_len,
bootstrap_address_ptr->port,
bootstrap_address_ptr->type) == SN_NSDL_FAILURE) {
return 0;
}
handle->is_bs_server = true;
/* XXX FIX -- Init CoAP header struct */
sn_coap_parser_init_message(&bootstrap_coap_header);
if (!sn_coap_parser_alloc_options(handle->grs->coap, &bootstrap_coap_header)) {
return 0;
}
/* Build bootstrap start message */
bootstrap_coap_header.msg_code = COAP_MSG_CODE_REQUEST_POST;
bootstrap_coap_header.msg_type = COAP_MSG_TYPE_CONFIRMABLE;
bootstrap_coap_header.uri_path_ptr = bs_uri;
bootstrap_coap_header.uri_path_len = sizeof(bs_uri);
size_t query_len = endpoint_info_ptr->endpoint_name_len + BS_EP_PARAMETER_LEN;
size_t optional_params_len = 0;
if (uri_query_parameters) {
optional_params_len = strlen(uri_query_parameters);
}
query_len += optional_params_len;
if (query_len > MAX_URI_QUERY_LEN) {
handle->sn_nsdl_free(bootstrap_coap_header.options_list_ptr);
tr_error("sn_nsdl_oma_bootstrap - max param length reached (%lu)", (unsigned long)query_len);
return 0;
}
uri_query_tmp_ptr = handle->sn_nsdl_alloc(query_len);
if (!uri_query_tmp_ptr) {
handle->sn_nsdl_free(bootstrap_coap_header.options_list_ptr);
return 0;
}
memcpy(uri_query_tmp_ptr, bs_ep_name, BS_EP_PARAMETER_LEN);
memcpy((uri_query_tmp_ptr + BS_EP_PARAMETER_LEN),
endpoint_info_ptr->endpoint_name_ptr,
endpoint_info_ptr->endpoint_name_len);
if (optional_params_len > 0) {
memcpy(uri_query_tmp_ptr + endpoint_info_ptr->endpoint_name_len + BS_EP_PARAMETER_LEN,
uri_query_parameters,
optional_params_len);
}
bootstrap_coap_header.options_list_ptr->uri_query_len = query_len;
bootstrap_coap_header.options_list_ptr->uri_query_ptr = uri_query_tmp_ptr;
/* Save bootstrap server address */
sn_nsdl_add_token(handle, &handle->bootstrap_token, &bootstrap_coap_header);
/* Send message */
message_id = sn_nsdl_internal_coap_send(handle, &bootstrap_coap_header, bootstrap_address_ptr);
/* Free allocated memory */
handle->sn_nsdl_free(uri_query_tmp_ptr);
handle->sn_nsdl_free(bootstrap_coap_header.options_list_ptr);
return message_id;
#else
return 0;
#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
}
char *sn_nsdl_get_version(void)
{
#if defined(YOTTA_MBED_CLIENT_C_VERSION_STRING)
return YOTTA_MBED_CLIENT_C_VERSION_STRING;
#elif defined(VERSION)
return VERSION;
#else
return "0.0.0";
#endif
}
int8_t sn_nsdl_process_coap(struct nsdl_s *handle, uint8_t *packet_ptr, uint16_t packet_len, sn_nsdl_addr_s *src_ptr)
{
sn_coap_hdr_s *coap_packet_ptr = NULL;
sn_coap_hdr_s *coap_response_ptr = NULL;
sn_nsdl_dynamic_resource_parameters_s *resource = NULL;
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
/* Parse CoAP packet */
coap_packet_ptr = sn_coap_protocol_parse(handle->grs->coap, src_ptr, packet_len, packet_ptr, (void *)handle);
/* Check if parsing was successfull */
if (coap_packet_ptr == (sn_coap_hdr_s *)NULL) {
return SN_NSDL_FAILURE;
}
sn_nsdl_print_coap_data(coap_packet_ptr, false);
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
// Pass block to application if external_memory_block is set
if((coap_packet_ptr->options_list_ptr &&
coap_packet_ptr->options_list_ptr->block1 != -1) &&
(coap_packet_ptr->coap_status == COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVING ||
coap_packet_ptr->coap_status == COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED)) {
// Block 1 handling
/* Get resource */
char* path = handle->sn_nsdl_alloc(coap_packet_ptr->uri_path_len + 1);
if (!path) {
return SN_NSDL_FAILURE;
}
memcpy(path,
coap_packet_ptr->uri_path_ptr,
coap_packet_ptr->uri_path_len);
path[coap_packet_ptr->uri_path_len] = '\0';
resource = sn_nsdl_get_resource(handle, path);
handle->sn_nsdl_free(path);
if (coap_packet_ptr->options_list_ptr) {
if(resource &&
resource->static_resource_parameters->external_memory_block &&
coap_packet_ptr->options_list_ptr->block1) {
uint32_t block_number = coap_packet_ptr->options_list_ptr->block1 >> 4;
if (block_number) {
remove_previous_block_data(handle, src_ptr, block_number);
}
// Whole message received --> pass only the last block data to application
if (coap_packet_ptr->coap_status == COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED) {
// Get the block size
uint8_t temp = (coap_packet_ptr->options_list_ptr->block1 & 0x07);
uint16_t block_size = 1u << (temp + 4);
uint32_t new_payload_len = coap_packet_ptr->payload_len - block_size;
uint8_t *temp_ptr = handle->grs->coap->sn_coap_protocol_malloc(new_payload_len);
if (temp_ptr) {
// Skip the second last block data since it's still stored in mbed-coap list!
memcpy(temp_ptr, coap_packet_ptr->payload_ptr + block_size, new_payload_len);
handle->grs->coap->sn_coap_protocol_free(coap_packet_ptr->payload_ptr);
coap_packet_ptr->payload_ptr = NULL;
coap_packet_ptr->payload_ptr = handle->grs->coap->sn_coap_protocol_malloc(new_payload_len);
if (coap_packet_ptr->payload_ptr) {
memcpy(coap_packet_ptr->payload_ptr, temp_ptr, new_payload_len);
coap_packet_ptr->payload_len = new_payload_len;
}
handle->grs->coap->sn_coap_protocol_free(temp_ptr);
}
}
} else {
resource = NULL;
}
} else {
resource = NULL;
}
}
#endif
// Handling of GET responses
if (coap_packet_ptr->msg_code == COAP_MSG_CODE_RESPONSE_CONTENT) {
bool data_updated = false;
if (coap_packet_ptr->options_list_ptr && coap_packet_ptr->options_list_ptr->block2 != -1) {
uint32_t block_number = coap_packet_ptr->options_list_ptr->block2 >> 4;
if (block_number) {
remove_previous_block_data(handle, src_ptr, block_number);
}
// Modify payload to have only last received block data
data_updated = update_last_block_data(handle, coap_packet_ptr, false);
}
handle->sn_nsdl_rx_callback(handle, coap_packet_ptr, src_ptr);
if (data_updated) {
handle->grs->coap->sn_coap_protocol_free(coap_packet_ptr->payload_ptr);
}
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
// Remove sent blockwise message(GET request) from the linked list.
sn_coap_protocol_remove_sent_blockwise_message(handle->grs->coap, coap_packet_ptr->msg_id);
#endif
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_packet_ptr);
return SN_NSDL_SUCCESS;
}
/* Check, if coap itself sends response, or block receiving is ongoing... */
if (coap_packet_ptr->coap_status != COAP_STATUS_OK &&
coap_packet_ptr->coap_status != COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED &&
coap_packet_ptr &&
!resource) {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_packet_ptr);
return SN_NSDL_SUCCESS;
}
/* If proxy options added, return not supported */
if (coap_packet_ptr->options_list_ptr) {
if (coap_packet_ptr->options_list_ptr->proxy_uri_len) {
coap_response_ptr = sn_coap_build_response(handle->grs->coap, coap_packet_ptr, COAP_MSG_CODE_RESPONSE_PROXYING_NOT_SUPPORTED);
if (coap_response_ptr) {
sn_nsdl_send_coap_message(handle, src_ptr, coap_response_ptr);
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_response_ptr);
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_packet_ptr);
return SN_NSDL_SUCCESS;
} else {
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_packet_ptr);
return SN_NSDL_FAILURE;
}
}
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * */
/* If message is response message, call RX callback */
/* * * * * * * * * * * * * * * * * * * * * * * * * * */
if (((coap_packet_ptr->msg_code > COAP_MSG_CODE_REQUEST_DELETE) ||
(coap_packet_ptr->msg_type >= COAP_MSG_TYPE_ACKNOWLEDGEMENT))) {
int8_t retval = sn_nsdl_local_rx_function(handle, coap_packet_ptr, src_ptr);
if (coap_packet_ptr->coap_status == COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED &&
coap_packet_ptr->payload_ptr) {
handle->sn_nsdl_free(coap_packet_ptr->payload_ptr);
coap_packet_ptr->payload_ptr = 0;
}
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_packet_ptr);
return retval;
}
#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
/* * If OMA bootstrap message... * */
bool bootstrap_msg = handle->is_bs_server;
// Pass bootstrap data to application
if (bootstrap_msg) {
// If retval is 2 skip the freeing, it will be done in MBED_CLIENT_NSDLINTERFACE_BS_PUT_EVENT event
if (handle->sn_nsdl_rx_callback(handle, coap_packet_ptr,src_ptr) != 2) {
if (coap_packet_ptr &&
coap_packet_ptr->options_list_ptr &&
coap_packet_ptr->coap_status != COAP_STATUS_BUILDER_MESSAGE_SENDING_FAILED &&
coap_packet_ptr->options_list_ptr->block1 != -1) {
handle->sn_nsdl_free(coap_packet_ptr->payload_ptr);
coap_packet_ptr->payload_ptr = NULL;
}
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, coap_packet_ptr);
}
return SN_NSDL_SUCCESS;
}
#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
/* * * * * * * * * * * * * * * */
/* Other messages are for GRS */
/* * * * * * * * * * * * * * * */
return sn_grs_process_coap(handle, coap_packet_ptr, src_ptr);
}
int8_t sn_nsdl_exec(struct nsdl_s *handle, uint32_t time)
{
if(!handle || !handle->grs){
return SN_NSDL_FAILURE;
}
/* Call CoAP execution function */
return sn_coap_protocol_exec(handle->grs->coap, time);
}
sn_nsdl_dynamic_resource_parameters_s *sn_nsdl_get_resource(struct nsdl_s *handle, const char *path_ptr)
{
/* Check parameters */
if (handle == NULL) {
return NULL;
}
return sn_grs_search_resource(handle->grs, path_ptr, SN_GRS_SEARCH_METHOD);
}
/**
* \fn static int32_t sn_nsdl_internal_coap_send(struct nsdl_s *handle, sn_coap_hdr_s *coap_header_ptr, sn_nsdl_addr_s *dst_addr_ptr)
*
*
* \brief To send NSDL messages. Stores message id?s and message description to catch response from NSP server
* \param *handle Pointer to nsdl-library handle
* \param *coap_header_ptr Pointer to the CoAP message header to be sent
* \param *dst_addr_ptr Pointer to the address structure that contains destination address information
* \param message_description Message description to be stored to list for waiting response
*
* \return message id, <=0 if failed
*/
static int32_t sn_nsdl_internal_coap_send(struct nsdl_s *handle, sn_coap_hdr_s *coap_header_ptr, sn_nsdl_addr_s *dst_addr_ptr)
{
tr_debug("sn_nsdl_internal_coap_send");
uint8_t *coap_message_ptr = NULL;
int32_t coap_message_len = 0;
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE /* If Message blockwising is not used at all, this part of code will not be compiled */
int8_t ret_val = prepare_blockwise_message(handle->grs->coap, coap_header_ptr);
if( 0 != ret_val ) {
return 0;
}
#endif
coap_message_len = sn_coap_builder_calc_needed_packet_data_size_2(coap_header_ptr, handle->grs->coap->sn_coap_block_data_size);
tr_debug("sn_nsdl_internal_coap_send - msg len after calc: %" PRId32 "", coap_message_len);
if (coap_message_len == 0) {
return 0;
}
coap_message_ptr = handle->sn_nsdl_alloc(coap_message_len);
if (!coap_message_ptr) {
return 0;
}
/* Build message */
int16_t ret = sn_coap_protocol_build(handle->grs->coap, dst_addr_ptr, coap_message_ptr, coap_header_ptr, (void *)handle);
if (ret < 0) {
handle->sn_nsdl_free(coap_message_ptr);
return ret;
}
handle->sn_nsdl_tx_callback(handle, SN_NSDL_PROTOCOL_COAP, coap_message_ptr, coap_message_len, dst_addr_ptr);
handle->sn_nsdl_free(coap_message_ptr);
return coap_header_ptr->msg_id;
}
/**
* \fn static void sn_nsdl_resolve_nsp_address(struct nsdl_s *handle)
*
* \brief Resolves NSP server address.
*
* \param *handle Pointer to nsdl-library handle
* \note Application must set NSP address with set_nsp_address
*/
static void sn_nsdl_resolve_nsp_address(struct nsdl_s *handle)
{
memset(&handle->server_address, 0, sizeof(sn_nsdl_addr_s));
handle->server_address.type = SN_NSDL_ADDRESS_TYPE_NONE;
}
#ifdef RESOURCE_ATTRIBUTES_LIST
static char *sn_nsdl_build_resource_attribute_str(char *dst, const sn_nsdl_attribute_item_s *attribute, const char *name, const size_t name_len)
{
if (attribute != NULL && name != NULL && name_len > 0 && attribute->value) {
size_t attribute_len = strlen(attribute->value);
*dst++ = ';';
memcpy(dst, name, name_len);
dst += name_len;
*dst++ = '"';
memcpy(dst,
attribute->value,
attribute_len);
dst += attribute_len;
*dst++ = '"';
}
return dst;
}
#endif
/**
* \fn int8_t sn_nsdl_build_registration_body(struct nsdl_s *handle, sn_coap_hdr_s *message_ptr, uint8_t updating_registeration)
*
* \brief To build GRS resources to registration message payload
* \param *handle Pointer to nsdl-library handle
* \param *message_ptr Pointer to CoAP message header
*
* \return SN_NSDL_SUCCESS = 0, Failed = -1
*/
int8_t sn_nsdl_build_registration_body(struct nsdl_s *handle, sn_coap_hdr_s *message_ptr, uint8_t updating_registeration)
{
tr_debug("sn_nsdl_build_registration_body");
/* Local variables */
uint8_t *temp_ptr;
sn_nsdl_dynamic_resource_parameters_s *resource_temp_ptr;
/* Calculate needed memory and allocate */
int8_t error = 0;
uint16_t msg_len = sn_nsdl_calculate_registration_body_size(handle, updating_registeration, &error);
if (SN_NSDL_FAILURE == error) {
return error;
}
if (!msg_len) {
return SN_NSDL_SUCCESS;
} else {
message_ptr->payload_len = msg_len;
}
tr_debug("sn_nsdl_build_registration_body - body size: [%d]", message_ptr->payload_len);
message_ptr->payload_ptr = handle->sn_nsdl_alloc(message_ptr->payload_len);
if (!message_ptr->payload_ptr) {
return SN_NSDL_FAILURE;
}
/* Build message */
temp_ptr = message_ptr->payload_ptr;
resource_temp_ptr = sn_grs_get_first_resource(handle->grs);
/* Loop trough all resources */
while (resource_temp_ptr) {
/* if resource needs to be registered */
if (resource_temp_ptr->publish_uri) {
if (!resource_temp_ptr->always_publish && updating_registeration && resource_temp_ptr->registered == SN_NDSL_RESOURCE_REGISTERED) {
resource_temp_ptr = sn_grs_get_next_resource(handle->grs, resource_temp_ptr);
continue;
} else if (resource_temp_ptr->registered != SN_NDSL_RESOURCE_DELETE) {
resource_temp_ptr->registered = SN_NDSL_RESOURCE_REGISTERED;
}
/* If not first resource, add '.' to separator */
if (temp_ptr != message_ptr->payload_ptr) {
*temp_ptr++ = ',';
}
*temp_ptr++ = '<';
*temp_ptr++ = '/';
size_t path_len = 0;
if (resource_temp_ptr->static_resource_parameters->path) {
path_len = strlen(resource_temp_ptr->static_resource_parameters->path);
}
memcpy(temp_ptr,
resource_temp_ptr->static_resource_parameters->path,
path_len);
temp_ptr += path_len;
*temp_ptr++ = '>';
/* Resource attributes */
if (resource_temp_ptr->registered == SN_NDSL_RESOURCE_DELETE) {
*temp_ptr++ = ';';
*temp_ptr++ = 'd';
}
#ifndef RESOURCE_ATTRIBUTES_LIST
#ifndef DISABLE_RESOURCE_TYPE
size_t resource_type_len = 0;
if (resource_temp_ptr->static_resource_parameters->resource_type_ptr) {
resource_type_len = strlen(resource_temp_ptr->static_resource_parameters->resource_type_ptr);
}
if (resource_type_len) {
*temp_ptr++ = ';';
memcpy(temp_ptr, resource_type_parameter, RT_PARAMETER_LEN);
temp_ptr += RT_PARAMETER_LEN;
*temp_ptr++ = '"';
memcpy(temp_ptr,
resource_temp_ptr->static_resource_parameters->resource_type_ptr,
resource_type_len);
temp_ptr += resource_type_len;
*temp_ptr++ = '"';
}
#endif
#ifndef DISABLE_INTERFACE_DESCRIPTION
size_t interface_description_len = 0;
if (resource_temp_ptr->static_resource_parameters->interface_description_ptr) {
interface_description_len = strlen(resource_temp_ptr->static_resource_parameters->interface_description_ptr);
}
if (interface_description_len) {
*temp_ptr++ = ';';
memcpy(temp_ptr, if_description_parameter, IF_PARAMETER_LEN);
temp_ptr += IF_PARAMETER_LEN;
*temp_ptr++ = '"';
memcpy(temp_ptr,
resource_temp_ptr->static_resource_parameters->interface_description_ptr,
interface_description_len);
temp_ptr += interface_description_len;
*temp_ptr++ = '"';
}
#endif
#else
size_t attribute_len = 0;
if (resource_temp_ptr->static_resource_parameters->attributes_ptr) {
sn_nsdl_attribute_item_s *attribute = resource_temp_ptr->static_resource_parameters->attributes_ptr;
while (attribute->attribute_name != ATTR_END) {
switch (attribute->attribute_name) {
case ATTR_RESOURCE_TYPE:
temp_ptr = sn_nsdl_build_resource_attribute_str(temp_ptr, attribute, resource_type_parameter, RT_PARAMETER_LEN);
break;
case ATTR_INTERFACE_DESCRIPTION:
temp_ptr = sn_nsdl_build_resource_attribute_str(temp_ptr, attribute, if_description_parameter, IF_PARAMETER_LEN);
break;
case ATTR_ENDPOINT_NAME:
temp_ptr = sn_nsdl_build_resource_attribute_str(temp_ptr, attribute, name_parameter, NAME_PARAMETER_LEN);
break;
default:
break;
}
attribute++;
}
}
#endif
if (resource_temp_ptr->coap_content_type != 0) {
*temp_ptr++ = ';';
memcpy(temp_ptr, coap_con_type_parameter, COAP_CON_PARAMETER_LEN);
temp_ptr += COAP_CON_PARAMETER_LEN;
*temp_ptr++ = '"';
temp_ptr = sn_nsdl_itoa(temp_ptr,
resource_temp_ptr->coap_content_type);
*temp_ptr++ = '"';
}
/* ;v */
if ((resource_temp_ptr->publish_value > 0) && resource_temp_ptr->resource) {
// If the resource is Opaque then do Base64 encoding of data
if (resource_temp_ptr->publish_value == 2) {
size_t dst_size = (((resource_temp_ptr->resource_len + 2) / 3) << 2) + 1;
unsigned char *dst = (unsigned char*)handle->sn_nsdl_alloc(dst_size);
size_t olen = 0;
if (dst) {
if (mbedtls_base64_encode(dst, dst_size, &olen,
resource_temp_ptr->resource, resource_temp_ptr->resource_len) == 0) {
*temp_ptr++ = ';';
memcpy(temp_ptr, resource_value, RESOURCE_VALUE_PARAMETER_LEN);
temp_ptr += RESOURCE_VALUE_PARAMETER_LEN;
*temp_ptr++ = '"';
memcpy(temp_ptr, dst, olen);
temp_ptr += olen;
*temp_ptr++ = '"';
}
handle->sn_nsdl_free(dst);
}
} else { // For resources which does not require Base64 encoding of data
*temp_ptr++ = ';';
memcpy(temp_ptr, resource_value, RESOURCE_VALUE_PARAMETER_LEN);
temp_ptr += RESOURCE_VALUE_PARAMETER_LEN;
*temp_ptr++ = '"';
memcpy(temp_ptr, resource_temp_ptr->resource, resource_temp_ptr->resource_len);
temp_ptr += resource_temp_ptr->resource_len;
*temp_ptr++ = '"';
}
}
/* ;aobs / ;obs */
// This needs to be re-visited and may be need an API for maganging obs value for different server implementation
#ifndef COAP_DISABLE_OBS_FEATURE
if (resource_temp_ptr->auto_observable) {
uint8_t token[MAX_TOKEN_SIZE] = {0};
uint8_t len = handle->sn_nsdl_auto_obs_token_callback(handle,
resource_temp_ptr->static_resource_parameters->path,
(uint8_t*)token);
if (len > 0) {
*temp_ptr++ = ';';
memcpy(temp_ptr, aobs_parameter, AOBS_PARAMETER_LEN);
temp_ptr += AOBS_PARAMETER_LEN;
*temp_ptr++ = '"';
uint16_t temp = common_read_16_bit((uint8_t*)token);
temp_ptr = sn_nsdl_itoa(temp_ptr, temp);
*temp_ptr++ = '"';
}
}
else if (resource_temp_ptr->observable) {
*temp_ptr++ = ';';
memcpy(temp_ptr, obs_parameter, OBS_PARAMETER_LEN);
temp_ptr += OBS_PARAMETER_LEN;
}
#endif
}
resource_temp_ptr = sn_grs_get_next_resource(handle->grs, resource_temp_ptr);
}
return SN_NSDL_SUCCESS;
}
/**
* \fn static uint16_t sn_nsdl_calculate_registration_body_size(struct nsdl_s *handle, uint8_t updating_registeration, int8_t *error)
*
*
* \brief Calculates registration message payload size
* \param *handle Pointer to nsdl-library handle
* \param *updating_registeration Pointer to list of GRS resources
* \param *error Error code, SN_NSDL_SUCCESS or SN_NSDL_FAILURE
*
* \return Needed payload size
*/
static uint16_t sn_nsdl_calculate_registration_body_size(struct nsdl_s *handle, uint8_t updating_registeration, int8_t *error)
{
tr_debug("sn_nsdl_calculate_registration_body_size");
/* Local variables */
uint16_t return_value = 0;
*error = SN_NSDL_SUCCESS;
const sn_nsdl_dynamic_resource_parameters_s *resource_temp_ptr;
/* check pointer */
resource_temp_ptr = sn_grs_get_first_resource(handle->grs);
while (resource_temp_ptr) {
if (resource_temp_ptr->publish_uri) {
if (!resource_temp_ptr->always_publish && updating_registeration && resource_temp_ptr->registered == SN_NDSL_RESOURCE_REGISTERED) {
resource_temp_ptr = sn_grs_get_next_resource(handle->grs, resource_temp_ptr);
continue;
}
/* If not first resource, then '.' will be added */
if (return_value) {
if (sn_nsdl_check_uint_overflow(return_value, 1, 0)) {
return_value++;
} else {
*error = SN_NSDL_FAILURE;
break;
}
}
/* Count length for the resource path </path> */
size_t path_len = 0;
if (resource_temp_ptr->static_resource_parameters->path) {
path_len = strlen(resource_temp_ptr->static_resource_parameters->path);
}
if (sn_nsdl_check_uint_overflow(return_value, 3, path_len)) {
return_value += (3 + path_len);
} else {
*error = SN_NSDL_FAILURE;
break;
}
/* Count lengths of the attributes */
if (resource_temp_ptr->registered == SN_NDSL_RESOURCE_DELETE) {
return_value += 2;
}
#ifndef RESOURCE_ATTRIBUTES_LIST
#ifndef DISABLE_RESOURCE_TYPE
/* Resource type parameter */
size_t resource_type_len = 0;
if (resource_temp_ptr->static_resource_parameters->resource_type_ptr) {
resource_type_len = strlen(resource_temp_ptr->static_resource_parameters->resource_type_ptr);
}
if (resource_type_len) {
/* ;rt="restype" */
if (sn_nsdl_check_uint_overflow(return_value,
6,
resource_type_len)) {
return_value += (6 + resource_type_len);
} else {
*error = SN_NSDL_FAILURE;
break;
}
}
#endif
#ifndef DISABLE_INTERFACE_DESCRIPTION
/* Interface description parameter */
size_t interface_description_len = 0;
if (resource_temp_ptr->static_resource_parameters->interface_description_ptr) {
interface_description_len = strlen(resource_temp_ptr->static_resource_parameters->interface_description_ptr);
}
if (interface_description_len) {
/* ;if="iftype" */
if (sn_nsdl_check_uint_overflow(return_value,
6,
interface_description_len)) {
return_value += (6 + interface_description_len);
} else {
*error = SN_NSDL_FAILURE;
break;
}
}
#endif
#else
/* All attributes */
if (resource_temp_ptr->static_resource_parameters->attributes_ptr) {
size_t attribute_len = 0;
size_t attribute_desc_len = 0;
uint8_t success = 1;
sn_nsdl_attribute_item_s *item = resource_temp_ptr->static_resource_parameters->attributes_ptr;
while (item->attribute_name != ATTR_END) {
switch(item->attribute_name) {
case ATTR_RESOURCE_TYPE:
/* ;rt="restype" */
attribute_desc_len = 6;
attribute_len = strlen(item->value);
break;
case ATTR_INTERFACE_DESCRIPTION:
/* ;if="iftype" */
attribute_desc_len = 6;
attribute_len = strlen(item->value);
break;
case ATTR_ENDPOINT_NAME:
/* ;name="name" */
attribute_desc_len = 8;
attribute_len = strlen(item->value);
break;
default:
break;
}
if (sn_nsdl_check_uint_overflow(return_value,
attribute_desc_len,
attribute_len)) {
return_value += (attribute_desc_len + attribute_len);
} else {
success = 0;
break;
}
item++;
}
if (!success) {
*error = SN_NSDL_FAILURE;
break;
}
}
#endif
if (resource_temp_ptr->coap_content_type != 0) {
/* ;if="content" */
uint8_t len = sn_nsdl_itoa_len(resource_temp_ptr->coap_content_type);
if (sn_nsdl_check_uint_overflow(return_value, 6, len)) {
return_value += (6 + len);
} else {
*error = SN_NSDL_FAILURE;
break;
}
}
if ((resource_temp_ptr->publish_value > 0) && resource_temp_ptr->resource) {
/* ;v="" */
uint16_t len = resource_temp_ptr->resource_len;
if (resource_temp_ptr->publish_value == 2) {
len = (((resource_temp_ptr->resource_len + 2) / 3) << 2);
}
if (sn_nsdl_check_uint_overflow(return_value, 5, len)) {
return_value += 5 + len;
} else {
*error = SN_NSDL_FAILURE;
break;
}
/* ;v="" */
}
#ifndef COAP_DISABLE_OBS_FEATURE
// Auto obs will take higher priority
// This needs to be re-visited and may be need an API for maganging obs value for different server implementation
if (resource_temp_ptr->auto_observable) {
/* ;aobs="" */
uint8_t token[MAX_TOKEN_SIZE] = {0};
uint8_t len = handle->sn_nsdl_auto_obs_token_callback(handle,
resource_temp_ptr->static_resource_parameters->path,
(uint8_t*)token);
if (len > 0) {
uint16_t temp = common_read_16_bit((uint8_t*)token);
uint8_t token_len = sn_nsdl_itoa_len(temp);
if (sn_nsdl_check_uint_overflow(return_value, 8, token_len)) {
return_value += (8 + token_len);
} else {
*error = SN_NSDL_FAILURE;
break;
}
} else {
*error = SN_NSDL_FAILURE;
break;
}
}
else if (resource_temp_ptr->observable) {
if (sn_nsdl_check_uint_overflow(return_value, 4, 0)) {
return_value += 4;
} else {
*error = SN_NSDL_FAILURE;
break;
}
}
#endif
}
resource_temp_ptr = sn_grs_get_next_resource(handle->grs, resource_temp_ptr);
}
return return_value;
}
/**
* \fn static uint8_t sn_nsdl_calculate_uri_query_option_len(sn_nsdl_ep_parameters_s *endpoint_info_ptr, uint8_t msg_type)
*
*
* \brief Calculates needed uri query option length
*
* \param *endpoint_info_ptr Pointer to endpoint info structure
* \param msg_type Message type
*
* \return number of parameters in uri query
*/
static uint8_t sn_nsdl_calculate_uri_query_option_len(sn_nsdl_ep_parameters_s *endpoint_info_ptr,
uint8_t msg_type,
const char *uri_query)
{
uint16_t return_value = 0;
uint8_t number_of_parameters = 0;
if ((endpoint_info_ptr->endpoint_name_len != 0) && (msg_type == SN_NSDL_EP_REGISTER_MESSAGE) && endpoint_info_ptr->endpoint_name_ptr != 0) {
return_value += endpoint_info_ptr->endpoint_name_len;
return_value += EP_NAME_PARAMETERS_LEN; //ep=
number_of_parameters++;
}
if ((endpoint_info_ptr->type_len != 0) &&
(msg_type == SN_NSDL_EP_REGISTER_MESSAGE || msg_type == SN_NSDL_EP_UPDATE_MESSAGE) &&
(endpoint_info_ptr->type_ptr != 0)) {
return_value += endpoint_info_ptr->type_len;
return_value += ET_PARAMETER_LEN; //et=
number_of_parameters++;
}
if ((endpoint_info_ptr->lifetime_len != 0) && (endpoint_info_ptr->lifetime_ptr != 0)) {
return_value += endpoint_info_ptr->lifetime_len;
return_value += LT_PARAMETER_LEN; //lt=
number_of_parameters++;
}
if ((endpoint_info_ptr->domain_name_len != 0) && (msg_type == SN_NSDL_EP_REGISTER_MESSAGE) && (endpoint_info_ptr->domain_name_ptr != 0)) {
return_value += endpoint_info_ptr->domain_name_len;
return_value += DOMAIN_PARAMETER_LEN; //d=
number_of_parameters++;
}
if (((endpoint_info_ptr->binding_and_mode & 0x04) || (endpoint_info_ptr->binding_and_mode & 0x01)) && (msg_type == SN_NSDL_EP_REGISTER_MESSAGE)) {
return_value += BS_QUEUE_MODE_PARAMETER_LEN;
if (endpoint_info_ptr->binding_and_mode & 0x01) {
return_value++;
}
if (endpoint_info_ptr->binding_and_mode & 0x04) {
return_value++;
}
if ((endpoint_info_ptr->binding_and_mode & 0x02) && ((endpoint_info_ptr->binding_and_mode & 0x04) || (endpoint_info_ptr->binding_and_mode & 0x01))) {
return_value++;
}
number_of_parameters++;
}
if (number_of_parameters != 0) {
return_value += (number_of_parameters - 1);
}
if (uri_query) {
return_value += strlen(uri_query);
}
if (return_value > MAX_URI_QUERY_LEN) {
tr_error("sn_nsdl_calculate_uri_query_option_len - max param length reached (%d)", return_value);
return_value = 0;
}
return return_value;
}
/**
* \fn static int8_t sn_nsdl_fill_uri_query_options(struct nsdl_s *handle, sn_nsdl_ep_parameters_s *parameter_ptr, sn_coap_hdr_s *source_msg_ptr, uint8_t msg_type)
*
*
* \brief Fills uri-query options to message header struct
* \param *handle Pointer to nsdl-library handle
* \param *parameter_ptr Pointer to endpoint parameters struct
* \param *source_msg_ptr Pointer to CoAP header struct
* \param msg_type Message type
*
* \return SN_NSDL_SUCCESS = 0, Failed = -1
*/
static int8_t sn_nsdl_fill_uri_query_options(struct nsdl_s *handle,
sn_nsdl_ep_parameters_s *parameter_ptr,
sn_coap_hdr_s *source_msg_ptr,
uint8_t msg_type,
const char *uri_query)
{
uint8_t *temp_ptr = NULL;
if( !validateParameters(parameter_ptr) ){
return SN_NSDL_FAILURE;
}
size_t query_len = sn_nsdl_calculate_uri_query_option_len(parameter_ptr, msg_type, uri_query);
if (query_len == 0) {
return 0;
}
source_msg_ptr->options_list_ptr->uri_query_len = query_len;
source_msg_ptr->options_list_ptr->uri_query_ptr = handle->sn_nsdl_alloc(query_len);
if (source_msg_ptr->options_list_ptr->uri_query_ptr == NULL) {
return SN_NSDL_FAILURE;
}
memset(source_msg_ptr->options_list_ptr->uri_query_ptr, 0, source_msg_ptr->options_list_ptr->uri_query_len);
temp_ptr = source_msg_ptr->options_list_ptr->uri_query_ptr;
/******************************************************/
/* If endpoint name is configured, fill needed fields */
/******************************************************/
if ((parameter_ptr->endpoint_name_len != 0) &&
(parameter_ptr->endpoint_name_ptr != 0) &&
(msg_type == SN_NSDL_EP_REGISTER_MESSAGE)) {
/* fill endpoint name, first ?ep=, then endpoint name */
memcpy(temp_ptr, ep_name_parameter_string, sizeof(ep_name_parameter_string));
temp_ptr += EP_NAME_PARAMETERS_LEN;
memcpy(temp_ptr, parameter_ptr->endpoint_name_ptr, parameter_ptr->endpoint_name_len);
temp_ptr += parameter_ptr->endpoint_name_len;
}
/******************************************************/
/* If endpoint type is configured, fill needed fields */
/******************************************************/
if ((parameter_ptr->type_len != 0) &&
(parameter_ptr->type_ptr != 0) &&
(msg_type == SN_NSDL_EP_REGISTER_MESSAGE || msg_type == SN_NSDL_EP_UPDATE_MESSAGE)) {
if (temp_ptr != source_msg_ptr->options_list_ptr->uri_query_ptr) {
*temp_ptr++ = '&';
}
memcpy(temp_ptr, et_parameter, sizeof(et_parameter));
temp_ptr += ET_PARAMETER_LEN;
memcpy(temp_ptr, parameter_ptr->type_ptr, parameter_ptr->type_len);
temp_ptr += parameter_ptr->type_len;
}
/******************************************************/
/* If lifetime is configured, fill needed fields */
/******************************************************/
if ((parameter_ptr->lifetime_len != 0) && (parameter_ptr->lifetime_ptr != 0)) {
if (temp_ptr != source_msg_ptr->options_list_ptr->uri_query_ptr) {
*temp_ptr++ = '&';
}
memcpy(temp_ptr, ep_lifetime_parameter, sizeof(ep_lifetime_parameter));
temp_ptr += LT_PARAMETER_LEN;
memcpy(temp_ptr, parameter_ptr->lifetime_ptr, parameter_ptr->lifetime_len);
temp_ptr += parameter_ptr->lifetime_len;
}
/******************************************************/
/* If domain is configured, fill needed fields */
/******************************************************/
if ((parameter_ptr->domain_name_len != 0) &&
(parameter_ptr->domain_name_ptr != 0) &&
(msg_type == SN_NSDL_EP_REGISTER_MESSAGE)) {
if (temp_ptr != source_msg_ptr->options_list_ptr->uri_query_ptr) {
*temp_ptr++ = '&';
}
memcpy(temp_ptr, ep_domain_parameter, sizeof(ep_domain_parameter));
temp_ptr += DOMAIN_PARAMETER_LEN;
memcpy(temp_ptr, parameter_ptr->domain_name_ptr, parameter_ptr->domain_name_len);
temp_ptr += parameter_ptr->domain_name_len;
}
/******************************************************/
/* If queue-mode is configured, fill needed fields */
/******************************************************/
if (((parameter_ptr->binding_and_mode & 0x01) ||
(parameter_ptr->binding_and_mode & 0x04)) &&
(msg_type == SN_NSDL_EP_REGISTER_MESSAGE)) {
if (temp_ptr != source_msg_ptr->options_list_ptr->uri_query_ptr) {
*temp_ptr++ = '&';
}
memcpy(temp_ptr, bs_queue_mode, sizeof(bs_queue_mode));
temp_ptr += BS_QUEUE_MODE_PARAMETER_LEN;
if (parameter_ptr->binding_and_mode & 0x01) {
*temp_ptr++ = 'U';
if (parameter_ptr->binding_and_mode & 0x02) {
*temp_ptr++ = 'Q';
}
}
if (parameter_ptr->binding_and_mode & 0x04) {
*temp_ptr++ = 'S';
if ((parameter_ptr->binding_and_mode & 0x02) && !(parameter_ptr->binding_and_mode & 0x01)) {
*temp_ptr++ = 'Q';
}
}
}
if (uri_query) {
memcpy(temp_ptr, uri_query, strlen(uri_query));
}
return SN_NSDL_SUCCESS;
}
static bool validateParameters(sn_nsdl_ep_parameters_s *parameter_ptr)
{
if( !validate( parameter_ptr->domain_name_ptr, parameter_ptr->domain_name_len, '&' ) ){
return false;
}
if( !validate( parameter_ptr->endpoint_name_ptr, parameter_ptr->endpoint_name_len, '&' ) ){
return false;
}
if( !validate( parameter_ptr->lifetime_ptr, parameter_ptr->lifetime_len, '&' ) ){
return false;
}
if( !validate( parameter_ptr->type_ptr, parameter_ptr->type_len, '&' ) ){
return false;
}
return true;
}
static bool validate(uint8_t* ptr, uint32_t len, char illegalChar)
{
if( ptr ){
for( uint32_t i=0; i < len; i++ ){
if( ptr[i] == illegalChar ){
return false;
}
}
}
return true;
}
/**
* \fn static int8_t sn_nsdl_local_rx_function(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr)
*
* \brief If received message is reply for the message that NSDL has been sent, it is processed here. Else, packet will be sent to application.
* \param *handle Pointer to nsdl-library handle
* \param *coap_packet_ptr Pointer to received CoAP packet
* \param *address_ptr Pointer to source address struct
*
* \return SN_NSDL_SUCCESS = 0, Failed = -1
*/
static int8_t sn_nsdl_local_rx_function(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr)
{
if ((coap_packet_ptr == 0) || (address_ptr == 0)) {
return -1;
}
bool is_reg_msg = false;
bool is_update_reg_msg = false;
bool is_unreg_msg = false;
bool is_bs_msg = false;
if (coap_packet_ptr->msg_code == COAP_MSG_CODE_RESPONSE_CREATED &&
coap_packet_ptr->token_len == sizeof(handle->register_token) &&
memcmp(coap_packet_ptr->token_ptr, &handle->register_token, coap_packet_ptr->token_len) == 0) {
handle->sn_nsdl_endpoint_registered = SN_NSDL_ENDPOINT_IS_REGISTERED;
sn_grs_mark_resources_as_registered(handle);
is_reg_msg = true;
if (sn_nsdl_resolve_ep_information(handle, coap_packet_ptr) != SN_NSDL_SUCCESS) {
return SN_NSDL_FAILURE;
}
}
else if (coap_packet_ptr->msg_code == COAP_MSG_CODE_RESPONSE_CHANGED &&
coap_packet_ptr->token_len == sizeof(handle->update_register_token) &&
memcmp(coap_packet_ptr->token_ptr,
&handle->update_register_token,
coap_packet_ptr->token_len) == 0) {
is_update_reg_msg = true;
}
else if (coap_packet_ptr->msg_code == COAP_MSG_CODE_RESPONSE_DELETED &&
coap_packet_ptr->token_len == sizeof(handle->unregister_token) &&
memcmp(coap_packet_ptr->token_ptr, &handle->unregister_token, coap_packet_ptr->token_len) == 0) {
is_unreg_msg = true;
handle->sn_nsdl_free(handle->ep_information_ptr->endpoint_name_ptr);
handle->ep_information_ptr->endpoint_name_ptr = 0;
handle->ep_information_ptr->endpoint_name_len = 0;
handle->sn_nsdl_free(handle->ep_information_ptr->domain_name_ptr);
handle->ep_information_ptr->domain_name_ptr = 0;
handle->ep_information_ptr->domain_name_len = 0;
}
else if (coap_packet_ptr->token_len == sizeof(handle->bootstrap_token) &&
memcmp(coap_packet_ptr->token_ptr, &handle->bootstrap_token, coap_packet_ptr->token_len) == 0) {
is_bs_msg = true;
}
/* Store the current message token so that we can identify if same operation was initiated from callback */
uint32_t temp_token = 0;
if (is_reg_msg) {
temp_token = handle->register_token;
}
else if (is_unreg_msg) {
temp_token = handle->unregister_token;
}
else if (is_update_reg_msg) {
temp_token = handle->update_register_token;
}
else if (is_bs_msg) {
temp_token = handle->bootstrap_token;
}
/* No messages to wait for, or message was not response to our request */
int ret = handle->sn_nsdl_rx_callback(handle, coap_packet_ptr, address_ptr);
/* If callback initiated same operation then token is updated in handle and temp_token won't match.
This means we don't clear the handle token here because we will wait for response to new request. */
if (is_reg_msg && temp_token == handle->register_token) {
handle->register_token = 0;
}
else if (is_unreg_msg && temp_token == handle->unregister_token) {
handle->unregister_token = 0;
}
else if (is_update_reg_msg && temp_token == handle->update_register_token) {
handle->update_register_token = 0;
}
else if (is_bs_msg && temp_token == handle->bootstrap_token) {
handle->bootstrap_token = 0;
}
return ret;
}
/**
* \fn static int8_t sn_nsdl_resolve_ep_information(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr)
*
*
* \brief Resolves endpoint information from received CoAP message
* \param *handle Pointer to nsdl-library handle
* \param *coap_packet_ptr Pointer to received CoAP message
*
* \return SN_NSDL_SUCCESS = 0, Failed = -1
*/
static int8_t sn_nsdl_resolve_ep_information(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr)
{
uint8_t *temp_ptr;
uint8_t parameter_count = 0;
uint16_t parameter_len = 0;
if (!coap_packet_ptr || !coap_packet_ptr->options_list_ptr ||
!coap_packet_ptr->options_list_ptr->location_path_ptr) {
return SN_NSDL_FAILURE;
}
temp_ptr = coap_packet_ptr->options_list_ptr->location_path_ptr;
while (temp_ptr <= (coap_packet_ptr->options_list_ptr->location_path_ptr + coap_packet_ptr->options_list_ptr->location_path_len)) {
if ((temp_ptr == (coap_packet_ptr->options_list_ptr->location_path_ptr + coap_packet_ptr->options_list_ptr->location_path_len)) || (*temp_ptr == '/')) {
parameter_count++;
if (parameter_count == 2) {
if (!handle->ep_information_ptr->domain_name_ptr) {
handle->ep_information_ptr->domain_name_len = parameter_len - 1;
handle->ep_information_ptr->domain_name_ptr = handle->sn_nsdl_alloc(handle->ep_information_ptr->domain_name_len);
if (!handle->ep_information_ptr->domain_name_ptr) {
return SN_NSDL_FAILURE;
}
memcpy(handle->ep_information_ptr->domain_name_ptr, temp_ptr - handle->ep_information_ptr->domain_name_len, handle->ep_information_ptr->domain_name_len);
}
}
if (parameter_count == 3) {
if (!handle->ep_information_ptr->endpoint_name_ptr) {
handle->ep_information_ptr->endpoint_name_len = parameter_len - 1;
handle->ep_information_ptr->endpoint_name_ptr = handle->sn_nsdl_alloc(handle->ep_information_ptr->endpoint_name_len);
if (!handle->ep_information_ptr->endpoint_name_ptr) {
if (handle->ep_information_ptr->domain_name_ptr) {
handle->sn_nsdl_free(handle->ep_information_ptr->domain_name_ptr);
handle->ep_information_ptr->domain_name_ptr = NULL;
handle->ep_information_ptr->domain_name_len = 0;
}
return SN_NSDL_FAILURE;
}
memcpy(handle->ep_information_ptr->endpoint_name_ptr, temp_ptr - handle->ep_information_ptr->endpoint_name_len, handle->ep_information_ptr->endpoint_name_len);
}
}
parameter_len = 0;
}
parameter_len++;
temp_ptr++;
}
return SN_NSDL_SUCCESS;
}
extern int8_t set_NSP_address(struct nsdl_s *handle, uint8_t *NSP_address, uint8_t address_length, uint16_t port, sn_nsdl_addr_type_e address_type)
{
/* Check parameters and source pointers */
if (!handle || !NSP_address) {
return SN_NSDL_FAILURE;
}
handle->server_address.type = address_type;
handle->sn_nsdl_free(handle->server_address.addr_ptr);
handle->server_address.addr_len = address_length;
handle->server_address.addr_ptr = handle->sn_nsdl_alloc(handle->server_address.addr_len);
if (!handle->server_address.addr_ptr) {
return SN_NSDL_FAILURE;
}
memcpy(handle->server_address.addr_ptr, NSP_address, handle->server_address.addr_len);
handle->server_address.port = port;
return SN_NSDL_SUCCESS;
}
static uint8_t sn_nsdl_itoa_len(uint32_t value)
{
uint8_t i = 0;
do {
i++;
} while ((value /= 10) > 0);
return i;
}
static uint8_t *sn_nsdl_itoa(uint8_t *ptr, uint32_t value)
{
uint8_t start = 0;
uint8_t end = 0;
uint8_t i;
i = 0;
/* ITOA */
do {
ptr[i++] = (value % 10) + '0';
} while ((value /= 10) > 0);
end = i - 1;
/* reverse (part of ITOA) */
while (start < end) {
uint8_t chr;
chr = ptr[start];
ptr[start] = ptr[end];
ptr[end] = chr;
start++;
end--;
}
return (ptr + i);
}
static int8_t set_endpoint_info(struct nsdl_s *handle, sn_nsdl_ep_parameters_s *endpoint_info_ptr)
{
handle->sn_nsdl_free(handle->ep_information_ptr->domain_name_ptr);
handle->ep_information_ptr->domain_name_ptr = 0;
handle->ep_information_ptr->domain_name_len = 0;
handle->sn_nsdl_free(handle->ep_information_ptr->endpoint_name_ptr);
handle->ep_information_ptr->endpoint_name_ptr = 0;
handle->ep_information_ptr->endpoint_name_len = 0;
handle->sn_nsdl_free(handle->ep_information_ptr->type_ptr);
handle->ep_information_ptr->type_ptr = 0;
handle->ep_information_ptr->type_len = 0;
if (endpoint_info_ptr->domain_name_ptr && endpoint_info_ptr->domain_name_len) {
handle->ep_information_ptr->domain_name_ptr = handle->sn_nsdl_alloc(endpoint_info_ptr->domain_name_len);
if (!handle->ep_information_ptr->domain_name_ptr) {
return -1;
}
memcpy(handle->ep_information_ptr->domain_name_ptr, endpoint_info_ptr->domain_name_ptr, endpoint_info_ptr->domain_name_len);
handle->ep_information_ptr->domain_name_len = endpoint_info_ptr->domain_name_len;
}
if (endpoint_info_ptr->endpoint_name_ptr && endpoint_info_ptr->endpoint_name_len) {
handle->ep_information_ptr->endpoint_name_ptr = handle->sn_nsdl_alloc(endpoint_info_ptr->endpoint_name_len);
if (!handle->ep_information_ptr->endpoint_name_ptr) {
handle->sn_nsdl_free(handle->ep_information_ptr->domain_name_ptr);
handle->ep_information_ptr->domain_name_ptr = 0;
handle->ep_information_ptr->domain_name_len = 0;
return -1;
}
memcpy(handle->ep_information_ptr->endpoint_name_ptr, endpoint_info_ptr->endpoint_name_ptr, endpoint_info_ptr->endpoint_name_len);
handle->ep_information_ptr->endpoint_name_len = endpoint_info_ptr->endpoint_name_len;
}
if (endpoint_info_ptr->type_ptr && endpoint_info_ptr->type_len) {
handle->ep_information_ptr->type_ptr = handle->sn_nsdl_alloc(endpoint_info_ptr->type_len);
if (handle->ep_information_ptr->type_ptr) {
memcpy(handle->ep_information_ptr->type_ptr, endpoint_info_ptr->type_ptr, endpoint_info_ptr->type_len);
handle->ep_information_ptr->type_len = endpoint_info_ptr->type_len;
}
}
handle->ep_information_ptr->binding_and_mode = endpoint_info_ptr->binding_and_mode;
handle->ep_information_ptr->ds_register_mode = endpoint_info_ptr->ds_register_mode;
return 0;
}
extern int8_t sn_nsdl_send_coap_message(struct nsdl_s *handle, sn_nsdl_addr_s *address_ptr, sn_coap_hdr_s *coap_hdr_ptr)
{
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
int8_t ret = sn_grs_send_coap_message(handle, address_ptr, coap_hdr_ptr);
return ret;
}
extern int8_t sn_nsdl_handle_block2_response_internally(struct nsdl_s *handle, uint8_t build_response)
{
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return sn_coap_protocol_handle_block2_response_internally(handle->grs->coap, build_response);
}
extern int8_t sn_nsdl_clear_coap_sent_blockwise_messages(struct nsdl_s *handle)
{
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
// Enable function once new CoAP API is released to mbed-os
sn_coap_protocol_clear_sent_blockwise_messages(handle->grs->coap);
return SN_NSDL_SUCCESS;
}
extern int8_t sn_nsdl_clear_coap_received_blockwise_messages(struct nsdl_s *handle)
{
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
// Enable function once new CoAP API is released to mbed-os
// sn_coap_protocol_clear_received_blockwise_messages(handle->grs->coap);
/* Loop all stored Blockwise messages in Linked list */
ns_list_foreach_safe(coap_blockwise_payload_s, removed_payload_ptr, &handle->grs->coap->linked_list_blockwise_received_payloads) {
ns_list_remove(&handle->grs->coap->linked_list_blockwise_received_payloads, removed_payload_ptr);
/* Free memory of stored payload */
handle->grs->coap->sn_coap_protocol_free(removed_payload_ptr->addr_ptr);
handle->grs->coap->sn_coap_protocol_free(removed_payload_ptr->payload_ptr);
handle->grs->coap->sn_coap_protocol_free(removed_payload_ptr->token_ptr);
handle->grs->coap->sn_coap_protocol_free(removed_payload_ptr);
}
return SN_NSDL_SUCCESS;
}
extern int32_t sn_nsdl_send_request(struct nsdl_s *handle,
const sn_coap_msg_code_e msg_code,
const char *uri_path,
const uint32_t token,
const size_t offset,
const uint16_t payload_len,
uint8_t* payload_ptr,
DownloadType type)
{
sn_coap_hdr_s req_message;
int32_t message_id;
if (handle == NULL || uri_path == NULL) {
return 0;
}
memset(&req_message, 0, sizeof(sn_coap_hdr_s));
// Fill message fields
req_message.msg_type = COAP_MSG_TYPE_CONFIRMABLE;
req_message.msg_code = msg_code;
// In GET we use hardcoded uri path('fw' or 'download') since the actual binary path will be part of
// proxy uri option
if (req_message.msg_code == COAP_MSG_CODE_REQUEST_GET) {
if (type == FIRMWARE_DOWNLOAD) {
req_message.uri_path_len = FIRMWARE_DOWNLOAD_LEN;
req_message.uri_path_ptr = firmware_download_uri;
} else {
req_message.uri_path_len = GENERIC_DOWNLOAD_LEN;
req_message.uri_path_ptr = generic_download_uri;
}
} else {
req_message.uri_path_len = (uint16_t)strlen(uri_path);
req_message.uri_path_ptr = (uint8_t*)uri_path;
}
req_message.token_ptr = (uint8_t*)&token;
req_message.token_len = sizeof(token);
if (msg_code == COAP_MSG_CODE_REQUEST_POST || msg_code == COAP_MSG_CODE_REQUEST_PUT) {
// Use payload only if POST or PUT request
req_message.payload_ptr = payload_ptr;
req_message.payload_len = payload_len;
}
if (sn_coap_parser_alloc_options(handle->grs->coap, &req_message) == NULL) {
handle->grs->coap->sn_coap_protocol_free(req_message.options_list_ptr);
return 0;
}
if (msg_code == COAP_MSG_CODE_REQUEST_GET) {
req_message.options_list_ptr->proxy_uri_len = (uint16_t)strlen(uri_path);
req_message.options_list_ptr->proxy_uri_ptr = (uint8_t*)uri_path;
}
// Skip block options if feature is not enabled
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
// Add block number
req_message.options_list_ptr->block2 = 0;
if (offset > 0) {
req_message.options_list_ptr->block2 = ((offset / handle->grs->coap->sn_coap_block_data_size) << 4);
}
// Add block size
req_message.options_list_ptr->block2 |= sn_coap_convert_block_size(handle->grs->coap->sn_coap_block_data_size);
#else
(void)offset;
#endif
// Build and send coap message
message_id = sn_nsdl_internal_coap_send(handle, &req_message, &handle->server_address);
handle->grs->coap->sn_coap_protocol_free(req_message.options_list_ptr);
return message_id;
}
extern int8_t sn_nsdl_put_resource(struct nsdl_s *handle, sn_nsdl_dynamic_resource_parameters_s *res)
{
if (!handle) {
return SN_NSDL_FAILURE;
}
return sn_grs_put_resource(handle->grs, res);
}
extern int8_t sn_nsdl_pop_resource(struct nsdl_s *handle, sn_nsdl_dynamic_resource_parameters_s *res)
{
if (!handle) {
return SN_NSDL_FAILURE;
}
return sn_grs_pop_resource(handle->grs, res);
}
extern int8_t sn_nsdl_delete_resource(struct nsdl_s *handle, const char *path)
{
/* Check parameters */
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return sn_grs_delete_resource(handle->grs, path);
}
extern const sn_nsdl_dynamic_resource_parameters_s *sn_nsdl_get_first_resource(struct nsdl_s *handle)
{
/* Check parameters */
if (handle == NULL) {
return NULL;
}
return sn_grs_get_first_resource(handle->grs);
}
extern const sn_nsdl_dynamic_resource_parameters_s *sn_nsdl_get_next_resource(struct nsdl_s *handle, const sn_nsdl_dynamic_resource_parameters_s *resource)
{
/* Check parameters */
if (handle == NULL) {
return NULL;
}
return sn_grs_get_next_resource(handle->grs, resource);
}
extern sn_coap_hdr_s *sn_nsdl_build_response(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, uint8_t msg_code)
{
if (handle == NULL) {
return NULL;
}
return sn_coap_build_response(handle->grs->coap, coap_packet_ptr, msg_code);
}
extern sn_coap_options_list_s *sn_nsdl_alloc_options_list(struct nsdl_s *handle, sn_coap_hdr_s *coap_msg_ptr)
{
if (handle == NULL || coap_msg_ptr == NULL) {
return NULL;
}
return sn_coap_parser_alloc_options(handle->grs->coap, coap_msg_ptr);
}
extern void sn_nsdl_release_allocated_coap_msg_mem(struct nsdl_s *handle, sn_coap_hdr_s *freed_coap_msg_ptr)
{
if (handle == NULL) {
return;
}
sn_coap_parser_release_allocated_coap_msg_mem(handle->grs->coap, freed_coap_msg_ptr);
}
extern int8_t sn_nsdl_set_retransmission_parameters(struct nsdl_s *handle,
uint8_t resending_count, uint8_t resending_interval)
{
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return sn_coap_protocol_set_retransmission_parameters(handle->grs->coap,
resending_count,resending_interval);
}
extern int8_t sn_nsdl_set_retransmission_buffer(struct nsdl_s *handle,
uint8_t buffer_size_messages, uint16_t buffer_size_bytes)
{
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return sn_coap_protocol_set_retransmission_buffer(handle->grs->coap,
buffer_size_messages, buffer_size_bytes);
}
extern int8_t sn_nsdl_set_block_size(struct nsdl_s *handle, uint16_t block_size)
{
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return sn_coap_protocol_set_block_size(handle->grs->coap, block_size);
}
extern int8_t sn_nsdl_set_duplicate_buffer_size(struct nsdl_s *handle, uint8_t message_count)
{
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
return sn_coap_protocol_set_duplicate_buffer_size(handle->grs->coap, message_count);
}
bool sn_nsdl_check_uint_overflow(uint16_t resource_size, uint16_t param_a, uint16_t param_b)
{
uint16_t first_check = param_a + param_b;
if (first_check < param_b) {
return false;
} else {
uint16_t total = resource_size + first_check;
if (total < first_check) {
return false;
} else {
return true;
}
}
}
extern int8_t sn_nsdl_set_context(struct nsdl_s * const handle, void * const context)
{
if (handle == NULL) {
return SN_NSDL_FAILURE;
}
handle->context = context;
return SN_NSDL_SUCCESS;
}
extern void *sn_nsdl_get_context(const struct nsdl_s * const handle)
{
if (handle == NULL) {
return NULL;
}
return handle->context;
}
int8_t sn_nsdl_clear_coap_resending_queue(struct nsdl_s *handle)
{
if (handle == NULL || handle->grs == NULL) {
tr_err("sn_nsdl_clear_coap_resending_queue failed.");
return SN_NSDL_FAILURE;
}
sn_coap_protocol_clear_retransmission_buffer(handle->grs->coap);
return SN_NSDL_SUCCESS;
}
int8_t sn_nsdl_remove_msg_from_retransmission(struct nsdl_s *handle, uint8_t *token, uint8_t token_len)
{
if (handle == NULL || handle->grs == NULL || handle->grs->coap == NULL || token == NULL || token_len == 0) {
tr_err("sn_nsdl_remove_msg_from_retransmission failed.");
return SN_NSDL_FAILURE;
}
#if ENABLE_RESENDINGS
// Workaround until new "sn_coap_protocol_delete_retransmission_by_token" API is released
// return sn_coap_protocol_delete_retransmission_by_token(handle->grs->coap, token, token_len);
ns_list_foreach(coap_send_msg_s, stored_msg, &handle->grs->coap->linked_list_resent_msgs) {
uint8_t stored_token_len = (stored_msg->send_msg_ptr->packet_ptr[0] & 0x0F);
if (stored_token_len == token_len) {
uint8_t stored_token[8];
memcpy(stored_token, &stored_msg->send_msg_ptr->packet_ptr[4], stored_token_len);
if (memcmp(stored_token, token, stored_token_len) == 0) {
uint16_t temp_msg_id = (stored_msg->send_msg_ptr->packet_ptr[2] << 8);
temp_msg_id += (uint16_t)stored_msg->send_msg_ptr->packet_ptr[3];
tr_debug("sn_nsdl_remove_msg_from_retransmission - removed msg_id: %d", temp_msg_id);
ns_list_remove(&handle->grs->coap->linked_list_resent_msgs, stored_msg);
--handle->grs->coap->count_resent_msgs;
handle->grs->coap->sn_coap_protocol_free(stored_msg->send_msg_ptr);
handle->grs->coap->sn_coap_protocol_free(stored_msg);
return 0;
}
}
}
#endif
return SN_NSDL_FAILURE;
}
#ifdef RESOURCE_ATTRIBUTES_LIST
static void sn_nsdl_free_attribute_value(sn_nsdl_attribute_item_s *attribute)
{
switch (attribute->attribute_name) {
case ATTR_RESOURCE_TYPE:
case ATTR_INTERFACE_DESCRIPTION:
case ATTR_ENDPOINT_NAME:
free(attribute->value);
attribute->value = NULL;
break;
case ATTR_NOP:
case ATTR_END:
default:
break;
}
}
void sn_nsdl_free_resource_attributes_list(sn_nsdl_static_resource_parameters_s *params)
{
if (params == NULL || params->free_on_delete == false) {
return;
}
sn_nsdl_attribute_item_s *item = params->attributes_ptr;
if (item) {
while (item->attribute_name != ATTR_END) {
sn_nsdl_free_attribute_value(item);
item++;
}
free(params->attributes_ptr);
params->attributes_ptr = NULL;
}
}
bool sn_nsdl_set_resource_attribute(sn_nsdl_static_resource_parameters_s *params, const sn_nsdl_attribute_item_s *attribute)
{
if (params == NULL || params->free_on_delete == false) {
return false;
}
unsigned int item_count = 0;
sn_nsdl_attribute_item_s *item = params->attributes_ptr;
// Count the number of attributes for reallocation, update in place though
// if the attribute already existed
while (item != NULL) {
item_count++;
if (item->attribute_name == ATTR_END) {
break;
}
// Check if attribute already exists or if there is NOP we can overwrite
if (item->attribute_name == attribute->attribute_name || item->attribute_name == ATTR_NOP) {
// Found attribute or NOP, overwrite it
sn_nsdl_free_attribute_value(item);
item->attribute_name = attribute->attribute_name;
item->value = attribute->value;
return true;
}
item++;
}
// Attribute did not yet exist (ptr was null or ATTR_END was first one)
if (item_count > 0) {
// List already had some attributes, so reallocate
size_t new_size = (item_count + 1) * sizeof(sn_nsdl_attribute_item_s);
item = params->attributes_ptr;
params->attributes_ptr = realloc(item, new_size);
if (params->attributes_ptr == NULL) {
// realloc failed, put back original pointer and return false
params->attributes_ptr = item;
return false;
}
// And move item ptr to ATTR_END to update that and last attribute
item = &(params->attributes_ptr[item_count - 1]);
}
else {
// No attributes, so allocate first time (1 struct for attribute and 1 struct for ATTR_END)
params->attributes_ptr = (char*)malloc(2 * sizeof(sn_nsdl_attribute_item_s));
if (params->attributes_ptr == NULL) {
return false;
}
item = params->attributes_ptr;
}
item->attribute_name = attribute->attribute_name;
item->value = attribute->value;
item++;
item->attribute_name = ATTR_END;
item->value = NULL;
return true;
}
const char *sn_nsdl_get_resource_attribute(const sn_nsdl_static_resource_parameters_s *params, sn_nsdl_resource_attribute_t attribute_name)
{
char *value = NULL;
if (params != NULL) {
sn_nsdl_attribute_item_s *item = params->attributes_ptr;
while (item != NULL && item->attribute_name != ATTR_END) {
if (item->attribute_name == attribute_name) {
value = item->value;
break;
}
item++;
}
}
return value;
}
bool sn_nsdl_remove_resource_attribute(sn_nsdl_static_resource_parameters_s *params, sn_nsdl_resource_attribute_t attribute_name)
{
if (params == NULL || params->free_on_delete == false) {
return false;
}
bool found = false;
sn_nsdl_attribute_item_s *item = params->attributes_ptr;
while (item != NULL) {
if (item->attribute_name == ATTR_END) {
break;
}
// Remove if attribute name matches
if (item->attribute_name == attribute_name) {
// Currently only pointer values, need to free and set as NOP
sn_nsdl_free_attribute_value(item);
item->attribute_name = ATTR_NOP;
found = true;
break;
}
item++;
}
return found;
}
#endif
void sn_nsdl_print_coap_data(sn_coap_hdr_s *coap_header_ptr, bool outgoing)
{
#if MBED_CONF_MBED_TRACE_ENABLE
if (!coap_header_ptr) {
return;
}
if (outgoing) {
tr_info("======== Outgoing CoAP package ========");
} else {
tr_info("======== Incoming CoAP package ========");
}
if (coap_header_ptr->uri_path_len > 0 && coap_header_ptr->uri_path_ptr) {
tr_info("Uri-Path:\t\t%.*s", coap_header_ptr->uri_path_len, coap_header_ptr->uri_path_ptr);
}
tr_info("Status:\t\t%s", sn_nsdl_coap_status_description(coap_header_ptr->coap_status));
tr_info("Code:\t\t%s", sn_nsdl_coap_message_code_desc(coap_header_ptr->msg_code));
tr_info("Type:\t\t%s", sn_nsdl_coap_message_type_desc(coap_header_ptr->msg_type));
tr_info("Id:\t\t%d", coap_header_ptr->msg_id);
if (coap_header_ptr->token_ptr && coap_header_ptr->token_len > 0) {
tr_info("Token:\t\t%s", tr_array(coap_header_ptr->token_ptr, coap_header_ptr->token_len));
}
if (coap_header_ptr->content_format != -1) {
tr_info("Content-type:\t%d", coap_header_ptr->content_format);
}
tr_info("Payload len:\t%d", coap_header_ptr->payload_len);
#ifdef MBED_CLIENT_PRINT_COAP_PAYLOAD
if (coap_header_ptr->payload_ptr && coap_header_ptr->payload_len > 0) {
int i = 0;
int row_len = 40;
int max_length = 2048;
while (i < coap_header_ptr->payload_len && i < max_length) {
if (i + row_len > coap_header_ptr->payload_len) {
row_len = coap_header_ptr->payload_len - i;
}
tr_info("Payload:\t\t%s", tr_array( coap_header_ptr->payload_ptr + i, row_len));
i += row_len;
}
if (i >= max_length)
tr_info("Payload:\t\t.....");
}
#endif
if (coap_header_ptr->options_list_ptr) {
if (coap_header_ptr->options_list_ptr->etag_ptr && coap_header_ptr->options_list_ptr->etag_len > 0) {
tr_info("E-tag:\t%s", tr_array(coap_header_ptr->options_list_ptr->etag_ptr, coap_header_ptr->options_list_ptr->etag_len));
}
if (coap_header_ptr->options_list_ptr->proxy_uri_ptr && coap_header_ptr->options_list_ptr->proxy_uri_len > 0) {
tr_info("Proxy uri:\t%.*s", coap_header_ptr->options_list_ptr->proxy_uri_len, coap_header_ptr->options_list_ptr->proxy_uri_ptr);
}
if (coap_header_ptr->options_list_ptr->uri_host_ptr && coap_header_ptr->options_list_ptr->uri_host_len > 0) {
tr_info("Uri host:\t%.*s", coap_header_ptr->options_list_ptr->uri_host_len, coap_header_ptr->options_list_ptr->uri_host_ptr);
}
if (coap_header_ptr->options_list_ptr->location_path_ptr && coap_header_ptr->options_list_ptr->location_path_len > 0) {
tr_info("Location path:\t%.*s", coap_header_ptr->options_list_ptr->location_path_len, coap_header_ptr->options_list_ptr->location_path_ptr);
}
if (coap_header_ptr->options_list_ptr->location_query_ptr && coap_header_ptr->options_list_ptr->location_query_len > 0) {
tr_info("Location query:\t%.*s", coap_header_ptr->options_list_ptr->location_query_len, coap_header_ptr->options_list_ptr->location_query_ptr);
}
if (coap_header_ptr->options_list_ptr->uri_query_ptr && coap_header_ptr->options_list_ptr->uri_query_len > 0) {
tr_info("Uri query:\t%.*s", coap_header_ptr->options_list_ptr->uri_query_len, coap_header_ptr->options_list_ptr->uri_query_ptr);
}
tr_info("Max-age:\t\t%" PRIu32"", coap_header_ptr->options_list_ptr->max_age);
if (coap_header_ptr->options_list_ptr->use_size1) {
tr_info("Size 1:\t\t%" PRIu32"", coap_header_ptr->options_list_ptr->size1);
}
if (coap_header_ptr->options_list_ptr->use_size2) {
tr_info("Size 2:\t\t%" PRIu32"", coap_header_ptr->options_list_ptr->size2);
}
if (coap_header_ptr->options_list_ptr->accept != -1) {
tr_info("Accept:\t\t%d", coap_header_ptr->options_list_ptr->accept);
}
if (coap_header_ptr->options_list_ptr->uri_port != -1) {
tr_info("Uri port:\t%" PRId32"", coap_header_ptr->options_list_ptr->uri_port);
}
if (coap_header_ptr->options_list_ptr->observe != -1) {
tr_info("Observe:\t\t%" PRId32"", coap_header_ptr->options_list_ptr->observe);
}
if (coap_header_ptr->options_list_ptr->block1 != -1) {
tr_info("Block1 number:\t%" PRId32"", coap_header_ptr->options_list_ptr->block1 >> 4);
uint8_t temp = (coap_header_ptr->options_list_ptr->block1 & 0x07);
uint16_t block_size = 1u << (temp + 4);
tr_info("Block1 size:\t%d", block_size);
tr_info("Block1 more:\t%d", (coap_header_ptr->options_list_ptr->block1) & 0x08 ? true : false);
}
if (coap_header_ptr->options_list_ptr->block2 != -1) {
tr_info("Block2 number:\t%" PRId32"", coap_header_ptr->options_list_ptr->block2 >> 4);
uint8_t temp = (coap_header_ptr->options_list_ptr->block2 & 0x07);
uint16_t block_size = 1u << (temp + 4);
tr_info("Block2 size:\t%d", block_size);
tr_info("Block2 more:\t%d", (coap_header_ptr->options_list_ptr->block2) & 0x08 ? true : false);
}
}
tr_info("======== End of CoAP package ========");
#else
(void) coap_header_ptr;
(void) outgoing;
#endif
}
#if MBED_CONF_MBED_TRACE_ENABLE
const char *sn_nsdl_coap_status_description(sn_coap_status_e status)
{
switch(status) {
case COAP_STATUS_OK:
return "COAP_STATUS_OK";
case COAP_STATUS_PARSER_ERROR_IN_HEADER:
return "COAP_STATUS_PARSER_ERROR_IN_HEADER";
case COAP_STATUS_PARSER_DUPLICATED_MSG:
return "COAP_STATUS_PARSER_DUPLICATED_MSG";
case COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVING:
return "COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVING";
case COAP_STATUS_PARSER_BLOCKWISE_ACK:
return "COAP_STATUS_PARSER_BLOCKWISE_ACK";
case COAP_STATUS_PARSER_BLOCKWISE_MSG_REJECTED:
return "COAP_STATUS_PARSER_BLOCKWISE_MSG_REJECTED";
case COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED:
return "COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED";
case COAP_STATUS_BUILDER_MESSAGE_SENDING_FAILED:
return "COAP_STATUS_BUILDER_MESSAGE_SENDING_FAILED";
default:
return "";
}
}
const char *sn_nsdl_coap_message_code_desc(int msg_code)
{
switch(msg_code) {
case COAP_MSG_CODE_EMPTY:
return "COAP_MSG_CODE_EMPTY";
case COAP_MSG_CODE_REQUEST_GET:
return "COAP_MSG_CODE_REQUEST_GET";
case COAP_MSG_CODE_REQUEST_POST:
return "COAP_MSG_CODE_REQUEST_POST";
case COAP_MSG_CODE_REQUEST_PUT:
return "COAP_MSG_CODE_REQUEST_PUT";
case COAP_MSG_CODE_REQUEST_DELETE:
return "COAP_MSG_CODE_REQUEST_DELETE";
case COAP_MSG_CODE_RESPONSE_CREATED:
return "COAP_MSG_CODE_RESPONSE_CREATED";
case COAP_MSG_CODE_RESPONSE_DELETED:
return "COAP_MSG_CODE_RESPONSE_DELETED";
case COAP_MSG_CODE_RESPONSE_VALID:
return "COAP_MSG_CODE_RESPONSE_VALID";
case COAP_MSG_CODE_RESPONSE_CHANGED:
return "COAP_MSG_CODE_RESPONSE_CHANGED";
case COAP_MSG_CODE_RESPONSE_CONTENT:
return "COAP_MSG_CODE_RESPONSE_CONTENT";
case COAP_MSG_CODE_RESPONSE_CONTINUE:
return "COAP_MSG_CODE_RESPONSE_CONTINUE";
case COAP_MSG_CODE_RESPONSE_BAD_REQUEST:
return "COAP_MSG_CODE_RESPONSE_BAD_REQUEST";
case COAP_MSG_CODE_RESPONSE_UNAUTHORIZED:
return "COAP_MSG_CODE_RESPONSE_UNAUTHORIZED";
case COAP_MSG_CODE_RESPONSE_BAD_OPTION:
return "COAP_MSG_CODE_RESPONSE_BAD_OPTION";
case COAP_MSG_CODE_RESPONSE_FORBIDDEN:
return "COAP_MSG_CODE_RESPONSE_FORBIDDEN";
case COAP_MSG_CODE_RESPONSE_NOT_FOUND:
return "COAP_MSG_CODE_RESPONSE_NOT_FOUND";
case COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED:
return "COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED";
case COAP_MSG_CODE_RESPONSE_NOT_ACCEPTABLE:
return "COAP_MSG_CODE_RESPONSE_NOT_ACCEPTABLE";
case COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_INCOMPLETE:
return "COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_INCOMPLETE";
case COAP_MSG_CODE_RESPONSE_PRECONDITION_FAILED:
return "COAP_MSG_CODE_RESPONSE_PRECONDITION_FAILED";
case COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_TOO_LARGE:
return "COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_TOO_LARGE";
case COAP_MSG_CODE_RESPONSE_UNSUPPORTED_CONTENT_FORMAT:
return "COAP_MSG_CODE_RESPONSE_UNSUPPORTED_CONTENT_FORMAT";
case COAP_MSG_CODE_RESPONSE_INTERNAL_SERVER_ERROR:
return "COAP_MSG_CODE_RESPONSE_INTERNAL_SERVER_ERROR";
case COAP_MSG_CODE_RESPONSE_NOT_IMPLEMENTED:
return "COAP_MSG_CODE_RESPONSE_NOT_IMPLEMENTED";
case COAP_MSG_CODE_RESPONSE_BAD_GATEWAY:
return "COAP_MSG_CODE_RESPONSE_BAD_GATEWAY";
case COAP_MSG_CODE_RESPONSE_SERVICE_UNAVAILABLE:
return "COAP_MSG_CODE_RESPONSE_SERVICE_UNAVAILABLE";
case COAP_MSG_CODE_RESPONSE_GATEWAY_TIMEOUT:
return "COAP_MSG_CODE_RESPONSE_GATEWAY_TIMEOUT";
case COAP_MSG_CODE_RESPONSE_PROXYING_NOT_SUPPORTED:
return "COAP_MSG_CODE_RESPONSE_PROXYING_NOT_SUPPORTED";
default:
return "";
}
}
const char *sn_nsdl_coap_message_type_desc(int msg_type)
{
switch(msg_type) {
case COAP_MSG_TYPE_CONFIRMABLE:
return "COAP_MSG_TYPE_CONFIRMABLE";
case COAP_MSG_TYPE_NON_CONFIRMABLE:
return "COAP_MSG_TYPE_NON_CONFIRMABLE";
case COAP_MSG_TYPE_ACKNOWLEDGEMENT:
return "COAP_MSG_TYPE_ACKNOWLEDGEMENT";
case COAP_MSG_TYPE_RESET:
return "COAP_MSG_TYPE_RESET";
default:
return "";
}
}
#endif
void remove_previous_block_data(struct nsdl_s *handle, sn_nsdl_addr_s *src_ptr, const uint32_t block_number)
{
#if SN_COAP_MAX_BLOCKWISE_PAYLOAD_SIZE
ns_list_foreach(coap_blockwise_payload_s, stored_payload_info_ptr, &handle->grs->coap->linked_list_blockwise_received_payloads) {
uint32_t stored_number = stored_payload_info_ptr->block_number;
// Remove the previous block data
if (block_number - 1 == stored_number) {
sn_coap_protocol_block_remove(handle->grs->coap,
src_ptr,
stored_payload_info_ptr->payload_len,
stored_payload_info_ptr->payload_ptr);
break;
}
}
#endif
}
bool update_last_block_data(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, bool block1)
{
bool data_updated = false;
// Whole message received --> pass only the last block data to application
if (coap_packet_ptr->coap_status == COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED) {
// Get the block size
uint8_t temp = 0;
if (block1) {
temp = (coap_packet_ptr->options_list_ptr->block1 & 0x07);
} else {
temp = (coap_packet_ptr->options_list_ptr->block2 & 0x07);
}
uint16_t block_size = 1u << (temp + 4);
uint32_t new_payload_len = coap_packet_ptr->payload_len - block_size;
uint8_t *temp_ptr = handle->grs->coap->sn_coap_protocol_malloc(new_payload_len);
if (temp_ptr) {
// Skip the second last block data since it's still stored in mbed-coap list!
memcpy(temp_ptr, coap_packet_ptr->payload_ptr + block_size, new_payload_len);
handle->grs->coap->sn_coap_protocol_free(coap_packet_ptr->payload_ptr);
coap_packet_ptr->payload_ptr = temp_ptr;
coap_packet_ptr->payload_len = new_payload_len;
data_updated = true;
}
}
return data_updated;
}
static void sn_nsdl_add_token(struct nsdl_s *handle, uint32_t *token, sn_coap_hdr_s *message_ptr)
{
handle->token_seed++;
if (handle->token_seed == 0) {
handle->token_seed++;
}
*token = handle->token_seed;
message_ptr->token_ptr = (uint8_t*)token;
message_ptr->token_len = sizeof(*token);
}
uint16_t sn_nsdl_get_block_size(const struct nsdl_s *handle)
{
if (handle == NULL) {
return 0;
}
return handle->grs->coap->sn_coap_block_data_size;
}
extern uint8_t sn_nsdl_get_retransmission_count(struct nsdl_s *handle)
{
#if ENABLE_RESENDINGS
if (handle == NULL) {
return 0;
}
return handle->grs->coap->sn_coap_resending_count;
#else
(void) handle;
return 0;
#endif
}
int32_t sn_nsdl_send_coap_ping(struct nsdl_s *handle)
{
assert(handle);
assert(handle->grs);
sn_coap_hdr_s coap_ping = {0};
int32_t return_msg_id = 0;
/* Fill header */
coap_ping.msg_type = COAP_MSG_TYPE_CONFIRMABLE;
coap_ping.msg_code = COAP_MSG_CODE_EMPTY;
coap_ping.content_format = COAP_CT_NONE;
/* Send message */
return_msg_id = sn_nsdl_send_coap_message(handle, &handle->server_address, &coap_ping);
if (return_msg_id >= SN_NSDL_SUCCESS) {
return_msg_id = coap_ping.msg_id;
}
return return_msg_id;
}