nes-proj/os/services/lwm2m/lwm2m-firmware.c

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/*
* Copyright (c) 2016, SICS Swedish ICT 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.
*/
/**
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* \addtogroup lwm2m
* @{
*
* Code for firmware object of lwm2m
*
*/
#include "lwm2m-engine.h"
#include "lwm2m-firmware.h"
#include "coap.h"
#include <inttypes.h>
#include <string.h>
/* Log configuration */
#include "coap-log.h"
#define LOG_MODULE "lwm2m-fw"
#define LOG_LEVEL LOG_LEVEL_LWM2M
#define UPDATE_PACKAGE 0
#define UPDATE_PACKAGE_URI 1
#define UPDATE_UPDATE 2
#define UPDATE_STATE 3
#define UPDATE_RESULT 5
#define STATE_IDLE 1
#define STATE_DOWNLOADING 2
#define STATE_DOWNLOADED 3
#define RESULT_DEFAULT 0
#define RESULT_SUCCESS 1
#define RESULT_NO_STORAGE 2
#define RESULT_OUT_OF_MEM 3
#define RESULT_CONNECTION_LOST 4
#define RESULT_CRC_FAILED 5
#define RESULT_UNSUPPORTED_FW 6
#define RESULT_INVALID_URI 7
static uint8_t state = STATE_IDLE;
static uint8_t result = RESULT_DEFAULT;
static lwm2m_object_instance_t reg_object;
static const lwm2m_resource_id_t resources[] =
{ WO(UPDATE_PACKAGE),
WO(UPDATE_PACKAGE_URI),
RO(UPDATE_STATE),
RO(UPDATE_RESULT),
EX(UPDATE_UPDATE)
};
/*---------------------------------------------------------------------------*/
static lwm2m_status_t
lwm2m_callback(lwm2m_object_instance_t *object,
lwm2m_context_t *ctx)
{
uint32_t num;
uint8_t more;
uint16_t size;
uint32_t offset;
LOG_DBG("Got request at: %d/%d/%d lv:%d\n", ctx->object_id,
ctx->object_instance_id, ctx->resource_id, ctx->level);
if(ctx->level == 1 || ctx->level == 2) {
/* Should not happen - as it will be taken care of by the lwm2m engine itself. */
return LWM2M_STATUS_ERROR;
}
if(ctx->operation == LWM2M_OP_READ) {
switch(ctx->resource_id) {
case UPDATE_STATE:
lwm2m_object_write_int(ctx, state); /* 1 means idle */
return LWM2M_STATUS_OK;
case UPDATE_RESULT:
lwm2m_object_write_int(ctx, result); /* 0 means default */
return LWM2M_STATUS_OK;
}
} else if(ctx->operation == LWM2M_OP_WRITE) {
if(LOG_DBG_ENABLED) {
if(coap_get_header_block1(ctx->request, &num, &more, &size, &offset)) {
LOG_DBG("CoAP BLOCK1: %"PRIu32"/%u/%u offset:%"PRIu32
" LWM2M CTX->offset=%"PRIu32"\n",
num, more, size, offset, ctx->offset);
}
}
switch(ctx->resource_id) {
case UPDATE_PACKAGE:
/* The firmware is written */
LOG_DBG("Firmware received: %"PRIu32" %d fin:%d\n", ctx->offset,
(int)ctx->inbuf->size, lwm2m_object_is_final_incoming(ctx));
if(lwm2m_object_is_final_incoming(ctx)) {
state = STATE_DOWNLOADED;
} else {
state = STATE_DOWNLOADING;
}
return LWM2M_STATUS_OK;
case UPDATE_PACKAGE_URI:
/* The firmware URI is written */
LOG_DBG("Firmware URI received: %"PRIu32" %d fin:%d\n", ctx->offset,
(int)ctx->inbuf->size, lwm2m_object_is_final_incoming(ctx));
if(LOG_DBG_ENABLED) {
int i;
LOG_DBG("Data: '");
for(i = 0; i < ctx->inbuf->size; i++) {
LOG_DBG_("%c", ctx->inbuf->buffer[i]);
}
LOG_DBG_("'\n");
}
return LWM2M_STATUS_OK;
}
} else if(ctx->operation == LWM2M_OP_EXECUTE && ctx->resource_id == UPDATE_UPDATE) {
/* Perform the update operation */
if(state == STATE_DOWNLOADED) {
return LWM2M_STATUS_OK;
}
/* Failure... */
}
return LWM2M_STATUS_ERROR;
}
/*---------------------------------------------------------------------------*/
void
lwm2m_firmware_init(void)
{
reg_object.object_id = 5;
reg_object.instance_id = 0;
reg_object.callback = lwm2m_callback;
reg_object.resource_ids = resources;
reg_object.resource_count = sizeof(resources) / sizeof(lwm2m_resource_id_t);
lwm2m_engine_add_object(&reg_object);
}
/*---------------------------------------------------------------------------*/
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/** @} */