153 lines
4.5 KiB
C
153 lines
4.5 KiB
C
/*
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* Copyright (c) 2016, SICS Swedish ICT AB
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup ipso-objects
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* @{
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*
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* Code to test blockwise transfer together with the LWM2M-engine.
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* This object tests get with BLOCK2 and put with BLOCK1.
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*
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*/
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#include "lwm2m-engine.h"
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#include "coap.h"
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#include <string.h>
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#define DEBUG 0
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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static lwm2m_object_instance_t reg_object;
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static char junk[64];
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static const lwm2m_resource_id_t resources[] =
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{
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RO(10000),
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RO(11000),
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RW(11001)
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};
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#define LEN 900
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static lwm2m_status_t
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opaque_callback(lwm2m_object_instance_t *object,
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lwm2m_context_t *ctx, int num_to_write)
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{
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int i;
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PRINTF("opaque-stream callback num_to_write: %d off: %d outlen: %d\n",
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num_to_write, ctx->offset, ctx->outbuf->len);
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for(i = 0; i < num_to_write; i++) {
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ctx->outbuf->buffer[i + ctx->outbuf->len] = '0' + (i & 31);
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if(i + ctx->offset == LEN) break;
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}
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ctx->outbuf->len += i;
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if(ctx->offset + i < LEN) {
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ctx->writer_flags |= WRITER_HAS_MORE;
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}
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return LWM2M_STATUS_OK;
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}
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/*---------------------------------------------------------------------------*/
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static lwm2m_status_t
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lwm2m_callback(lwm2m_object_instance_t *object,
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lwm2m_context_t *ctx)
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{
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uint32_t num;
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uint8_t more;
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uint16_t size;
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uint32_t offset;
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char *str = "just a string";
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PRINTF("Got request at: %d/%d/%d lv:%d\n", ctx->object_id, ctx->object_instance_id, ctx->resource_id, ctx->level);
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if(ctx->level == 1) {
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/* Should not happen */
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return LWM2M_STATUS_ERROR;
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}
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if(ctx->level == 2) {
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/* This is a get whole object - or write whole object */
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return LWM2M_STATUS_ERROR;
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}
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if(ctx->operation == LWM2M_OP_READ) {
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#if DEBUG
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if(coap_get_header_block2(ctx->request, &num, &more, &size, &offset)) {
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PRINTF("CoAP BLOCK2: %d/%d/%d offset:%d\n", num, more, size, offset);
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}
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#endif
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switch(ctx->resource_id) {
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case 10000:
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lwm2m_object_write_string(ctx, str, strlen(str));
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break;
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case 11000:
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case 11001:
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PRINTF("Preparing object write\n");
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lwm2m_object_write_opaque_stream(ctx, LEN, opaque_callback);
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break;
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default:
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return LWM2M_STATUS_NOT_FOUND;
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}
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} else if(ctx->operation == LWM2M_OP_WRITE) {
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if(coap_get_header_block1(ctx->request, &num, &more, &size, &offset)) {
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PRINTF("CoAP BLOCK1: %d/%d/%d offset:%d\n", num, more, size, offset);
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coap_set_header_block1(ctx->response, num, 0, size);
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}
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}
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return LWM2M_STATUS_OK;
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}
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void
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ipso_blockwise_test_init(void)
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{
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int i;
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PRINTF("Starting blockwise\n");
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reg_object.object_id = 4711;
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reg_object.instance_id = 0;
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reg_object.resource_ids = resources;
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reg_object.resource_count =
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sizeof(resources) / sizeof(lwm2m_resource_id_t);
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reg_object.callback = lwm2m_callback;
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for(i = 0; i < sizeof(junk); i++) {
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junk[i] = '0' + i;
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}
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junk[i - 1] = 0;
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lwm2m_engine_add_object(®_object);
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}
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/** @} */
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