nes-proj/apps/oma-lwm2m/lwm2m-object.c
2015-12-02 15:40:05 +01:00

337 lines
11 KiB
C

/*
* Copyright (c) 2015, Yanzi Networks AB.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \addtogroup oma-lwm2m
* @{
*
*/
/**
* \file
* Implementation of the Contiki OMA LWM2M object API
* \author
* Joakim Eriksson <joakime@sics.se>
* Niclas Finne <nfi@sics.se>
*/
#include "lwm2m-object.h"
#include <string.h>
/*---------------------------------------------------------------------------*/
int
lwm2m_object_is_resource_string(const lwm2m_resource_t *resource)
{
if(resource == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VALUE ||
resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE ||
resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE_ARRAY) {
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
const uint8_t *
lwm2m_object_get_resource_string(const lwm2m_resource_t *resource,
const lwm2m_context_t *context)
{
if(resource == NULL || context == NULL) {
return NULL;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VALUE) {
return resource->value.string.value;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE) {
return *(resource->value.stringvar.var);
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.stringvararr.count) {
return resource->value.stringvararr.var +
resource->value.stringvararr.size * context->object_instance_index;
}
return NULL;
}
/* Not a string */
return NULL;
}
/*---------------------------------------------------------------------------*/
uint16_t
lwm2m_object_get_resource_strlen(const lwm2m_resource_t *resource,
const lwm2m_context_t *context)
{
if(resource == NULL || context == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VALUE) {
return resource->value.string.len;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE) {
return *(resource->value.stringvar.len);
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.stringvararr.count) {
return resource->value.stringvararr.len[context->object_instance_index];
}
return 0;
}
/* Not a string */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_set_resource_string(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
uint16_t len, const uint8_t *string)
{
if(resource == NULL || context == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE) {
if(len > resource->value.stringvar.size) {
/* Too large */
return 0;
}
memcpy(resource->value.stringvar.var, string, len);
*(resource->value.stringvar.len) = len;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_STR_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.stringvararr.count &&
len <= resource->value.stringvararr.size) {
memcpy(resource->value.stringvararr.var +
resource->value.stringvararr.size * context->object_instance_index,
string, len);
resource->value.stringvararr.len[context->object_instance_index] = len;
return 1;
}
return 0;
}
/* Not a string variable */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_is_resource_int(const lwm2m_resource_t *resource)
{
if(resource == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_INT_VALUE ||
resource->type == LWM2M_RESOURCE_TYPE_INT_VARIABLE ||
resource->type == LWM2M_RESOURCE_TYPE_INT_VARIABLE_ARRAY) {
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_get_resource_int(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
int32_t *value)
{
if(resource == NULL || context == NULL || value == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_INT_VALUE) {
*value = resource->value.integer.value;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_INT_VARIABLE) {
*value = *(resource->value.integervar.var);
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_INT_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.integervararr.count) {
*value = resource->value.integervararr.var[context->object_instance_index];
return 1;
}
return 0;
}
/* Not an integer */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_set_resource_int(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
int32_t value)
{
if(resource == NULL || context == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_INT_VARIABLE) {
*(resource->value.integervar.var) = value;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_INT_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.integervararr.count) {
resource->value.integervararr.var[context->object_instance_index] =
value;
return 1;
}
return 0;
}
/* Not an integer variable */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_is_resource_floatfix(const lwm2m_resource_t *resource)
{
if(resource == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VALUE ||
resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VARIABLE ||
resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VARIABLE_ARRAY) {
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_get_resource_floatfix(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
int32_t *value)
{
if(resource == NULL || context == NULL || value == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VALUE) {
*value = resource->value.floatfix.value;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VARIABLE) {
*value = *(resource->value.floatfixvar.var);
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.floatfixvararr.count) {
*value = resource->value.floatfixvararr.var[context->object_instance_index];
return 1;
}
return 0;
}
/* Not an float */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_set_resource_floatfix(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
int32_t value)
{
if(resource == NULL || context == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VARIABLE) {
*(resource->value.floatfixvar.var) = value;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_FLOATFIX_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.floatfixvararr.count) {
resource->value.floatfixvararr.var[context->object_instance_index] =
value;
return 1;
}
return 0;
}
/* Not an float variable */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_is_resource_boolean(const lwm2m_resource_t *resource)
{
if(resource == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VALUE ||
resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VARIABLE ||
resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VARIABLE_ARRAY) {
return 1;
}
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_get_resource_boolean(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
int *value)
{
if(resource == NULL || context == NULL || value == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VALUE) {
*value = resource->value.boolean.value;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VARIABLE) {
*value = *(resource->value.booleanvar.var);
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.booleanvararr.count) {
*value = resource->value.booleanvararr.var[context->object_instance_index];
return 1;
}
return 0;
}
/* Not a boolean */
return 0;
}
/*---------------------------------------------------------------------------*/
int
lwm2m_object_set_resource_boolean(const lwm2m_resource_t *resource,
const lwm2m_context_t *context,
int value)
{
if(resource == NULL || context == NULL) {
return 0;
}
if(resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VARIABLE) {
*(resource->value.booleanvar.var) = value;
return 1;
}
if(resource->type == LWM2M_RESOURCE_TYPE_BOOLEAN_VARIABLE_ARRAY) {
if(context->object_instance_index < resource->value.booleanvararr.count) {
resource->value.booleanvararr.var[context->object_instance_index] =
value;
return 1;
}
return 0;
}
/* Not a boolean variable */
return 0;
}
/*---------------------------------------------------------------------------*/
/** @} */