Added Erbium coap-12 and coap-13.
This commit is contained in:
Matthias Kovatsch
parent
19c8f9ffdd
commit
a522357d20
33 changed files with 7138 additions and 107 deletions
1
apps/er-coap-12/Makefile.er-coap-12
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1
apps/er-coap-12/Makefile.er-coap-12
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@ -0,0 +1 @@
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er-coap-12_src = er-coap-12-engine.c er-coap-12.c er-coap-12-transactions.c er-coap-12-observing.c er-coap-12-separate.c
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669
apps/er-coap-12/er-coap-12-engine.c
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669
apps/er-coap-12/er-coap-12-engine.c
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@ -0,0 +1,669 @@
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/*
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* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
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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 Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*/
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/**
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* \file
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* CoAP implementation of the REST Engine
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* \author
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* Matthias Kovatsch <kovatsch@inf.ethz.ch>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "er-coap-12-engine.h"
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#define DEBUG 0
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#if DEBUG
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#define PRINTF(...) printf(__VA_ARGS__)
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#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
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#define PRINTLLADDR(lladdr) PRINTF(" %02x:%02x:%02x:%02x:%02x:%02x ",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
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#define PRINTBITS(buf,len) { \
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int i,j=0; \
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for (i=0; i<len; ++i) { \
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for (j=7; j>=0; --j) { \
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PRINTF("%c", (((char *)buf)[i] & 1<<j) ? '1' : '0'); \
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} \
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PRINTF(" "); \
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} \
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}
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#else
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#define PRINTF(...)
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#define PRINT6ADDR(addr)
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#define PRINTLLADDR(addr)
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#define PRINTBITS(buf,len)
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#endif
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PROCESS(coap_receiver, "CoAP Receiver");
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/*----------------------------------------------------------------------------*/
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/*- Variables ----------------------------------------------------------------*/
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/*----------------------------------------------------------------------------*/
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static service_callback_t service_cbk = NULL;
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/*----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------*/
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static
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int
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coap_receive(void)
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{
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coap_error_code = NO_ERROR;
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PRINTF("handle_incoming_data(): received uip_datalen=%u \n",(uint16_t)uip_datalen());
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/* Static declaration reduces stack peaks and program code size. */
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static coap_packet_t message[1]; /* This way the packet can be treated as pointer as usual. */
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static coap_packet_t response[1];
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static coap_transaction_t *transaction = NULL;
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if (uip_newdata()) {
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PRINTF("receiving UDP datagram from: ");
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PRINT6ADDR(&UIP_IP_BUF->srcipaddr);
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PRINTF(":%u\n Length: %u\n Data: ", uip_ntohs(UIP_UDP_BUF->srcport), uip_datalen() );
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PRINTBITS(uip_appdata, uip_datalen());
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PRINTF("\n");
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coap_error_code = coap_parse_message(message, uip_appdata, uip_datalen());
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if (coap_error_code==NO_ERROR)
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{
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/*TODO duplicates suppression, if required by application */
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PRINTF(" Parsed: v %u, t %u, oc %u, c %u, mid %u\n", message->version, message->type, message->option_count, message->code, message->mid);
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PRINTF(" URL: %.*s\n", message->uri_path_len, message->uri_path);
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PRINTF(" Payload: %.*s\n", message->payload_len, message->payload);
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/* Handle requests. */
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if (message->code >= COAP_GET && message->code <= COAP_DELETE)
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{
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/* Use transaction buffer for response to confirmable request. */
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if ( (transaction = coap_new_transaction(message->mid, &UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport)) )
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{
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uint32_t block_num = 0;
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uint16_t block_size = REST_MAX_CHUNK_SIZE;
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uint32_t block_offset = 0;
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int32_t new_offset = 0;
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/* prepare response */
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if (message->type==COAP_TYPE_CON)
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{
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/* Reliable CON requests are answered with an ACK. */
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coap_init_message(response, COAP_TYPE_ACK, CONTENT_2_05, message->mid);
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}
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else
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{
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/* Unreliable NON requests are answered with a NON as well. */
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coap_init_message(response, COAP_TYPE_NON, CONTENT_2_05, coap_get_mid());
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}
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/* resource handlers must take care of different handling (e.g., TOKEN_OPTION_REQUIRED_240) */
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if (IS_OPTION(message, COAP_OPTION_TOKEN))
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{
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coap_set_header_token(response, message->token, message->token_len);
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SET_OPTION(response, COAP_OPTION_TOKEN);
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}
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/* get offset for blockwise transfers */
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if (coap_get_header_block2(message, &block_num, NULL, &block_size, &block_offset))
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{
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PRINTF("Blockwise: block request %lu (%u/%u) @ %lu bytes\n", block_num, block_size, REST_MAX_CHUNK_SIZE, block_offset);
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block_size = MIN(block_size, REST_MAX_CHUNK_SIZE);
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new_offset = block_offset;
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}
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/* Invoke resource handler. */
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if (service_cbk)
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{
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/* Call REST framework and check if found and allowed. */
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if (service_cbk(message, response, transaction->packet+COAP_MAX_HEADER_SIZE, block_size, &new_offset))
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{
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if (coap_error_code==NO_ERROR)
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{
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/* Apply blockwise transfers. */
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if ( IS_OPTION(message, COAP_OPTION_BLOCK1) && response->code<BAD_REQUEST_4_00 && !IS_OPTION(response, COAP_OPTION_BLOCK1) )
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{
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PRINTF("Block1 NOT IMPLEMENTED\n");
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coap_error_code = NOT_IMPLEMENTED_5_01;
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coap_error_message = "NoBlock1Support";
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}
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else if ( IS_OPTION(message, COAP_OPTION_BLOCK2) )
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{
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/* unchanged new_offset indicates that resource is unaware of blockwise transfer */
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if (new_offset==block_offset)
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{
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PRINTF("Blockwise: unaware resource with payload length %u/%u\n", response->payload_len, block_size);
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if (block_offset >= response->payload_len)
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{
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PRINTF("handle_incoming_data(): block_offset >= response->payload_len\n");
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response->code = BAD_OPTION_4_02;
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coap_set_payload(response, "BlockOutOfScope", 15); /* a const char str[] and sizeof(str) produces larger code size */
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}
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else
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{
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coap_set_header_block2(response, block_num, response->payload_len - block_offset > block_size, block_size);
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coap_set_payload(response, response->payload+block_offset, MIN(response->payload_len - block_offset, block_size));
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} /* if (valid offset) */
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}
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else
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{
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/* resource provides chunk-wise data */
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PRINTF("Blockwise: blockwise resource, new offset %ld\n", new_offset);
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coap_set_header_block2(response, block_num, new_offset!=-1 || response->payload_len > block_size, block_size);
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if (response->payload_len > block_size) coap_set_payload(response, response->payload, block_size);
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} /* if (resource aware of blockwise) */
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}
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else if (new_offset!=0)
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{
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PRINTF("Blockwise: no block option for blockwise resource, using block size %u\n", REST_MAX_CHUNK_SIZE);
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coap_set_header_block2(response, 0, new_offset!=-1, REST_MAX_CHUNK_SIZE);
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coap_set_payload(response, response->payload, MIN(response->payload_len, REST_MAX_CHUNK_SIZE));
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} /* if (blockwise request) */
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} /* no errors/hooks */
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} /* successful service callback */
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/* Serialize response. */
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if (coap_error_code==NO_ERROR)
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{
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if ((transaction->packet_len = coap_serialize_message(response, transaction->packet))==0)
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{
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coap_error_code = PACKET_SERIALIZATION_ERROR;
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}
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}
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}
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else
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{
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coap_error_code = NOT_IMPLEMENTED_5_01;
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coap_error_message = "NoServiceCallbck"; // no a to fit 16 bytes
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} /* if (service callback) */
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} else {
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coap_error_code = SERVICE_UNAVAILABLE_5_03;
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coap_error_message = "NoFreeTraBuffer";
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} /* if (transaction buffer) */
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}
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else
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{
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/* Responses */
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if (message->type==COAP_TYPE_ACK)
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{
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PRINTF("Received ACK\n");
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}
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else if (message->type==COAP_TYPE_RST)
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{
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PRINTF("Received RST\n");
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/* Cancel possible subscriptions. */
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coap_remove_observer_by_mid(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, message->mid);
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}
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if ( (transaction = coap_get_transaction_by_mid(message->mid)) )
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{
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/* Free transaction memory before callback, as it may create a new transaction. */
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restful_response_handler callback = transaction->callback;
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void *callback_data = transaction->callback_data;
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coap_clear_transaction(transaction);
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/* Check if someone registered for the response */
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if (callback) {
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callback(callback_data, message);
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}
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} /* if (ACKed transaction) */
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transaction = NULL;
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} /* Request or Response */
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} /* if (parsed correctly) */
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if (coap_error_code==NO_ERROR)
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{
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if (transaction) coap_send_transaction(transaction);
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}
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else if (coap_error_code==MANUAL_RESPONSE)
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{
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PRINTF("Clearing transaction for manual response");
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coap_clear_transaction(transaction);
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}
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else
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{
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PRINTF("ERROR %u: %s\n", coap_error_code, coap_error_message);
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coap_clear_transaction(transaction);
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/* Set to sendable error code. */
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if (coap_error_code >= 192)
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{
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coap_error_code = INTERNAL_SERVER_ERROR_5_00;
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}
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/* Reuse input buffer for error message. */
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coap_init_message(message, COAP_TYPE_ACK, coap_error_code, message->mid);
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coap_set_payload(message, coap_error_message, strlen(coap_error_message));
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coap_send_message(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, uip_appdata, coap_serialize_message(message, uip_appdata));
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}
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} /* if (new data) */
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return coap_error_code;
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}
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/*----------------------------------------------------------------------------*/
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void
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coap_receiver_init()
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{
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process_start(&coap_receiver, NULL);
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}
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/*----------------------------------------------------------------------------*/
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void
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coap_set_service_callback(service_callback_t callback)
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{
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service_cbk = callback;
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}
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/*----------------------------------------------------------------------------*/
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rest_resource_flags_t
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coap_get_rest_method(void *packet)
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{
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return (rest_resource_flags_t)(1 << (((coap_packet_t *)packet)->code - 1));
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}
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/*----------------------------------------------------------------------------*/
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/*- Server part --------------------------------------------------------------*/
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/*----------------------------------------------------------------------------*/
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/* The discover resource is automatically included for CoAP. */
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RESOURCE(well_known_core, METHOD_GET, ".well-known/core", "ct=40");
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void
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well_known_core_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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size_t strpos = 0; /* position in overall string (which is larger than the buffer) */
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size_t bufpos = 0; /* position within buffer (bytes written) */
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size_t tmplen = 0;
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resource_t* resource = NULL;
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#if COAP_LINK_FORMAT_FILTERING
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/* For filtering. */
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const char *filter = NULL;
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const char *attrib = NULL;
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const char *found = NULL;
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const char *end = NULL;
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char *value = NULL;
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char lastchar;
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int len = coap_get_header_uri_query(request, &filter);
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if (len)
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{
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value = strchr(filter, '=');
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value[0] = '\0';
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++value;
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len -= strlen(filter)+1;
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PRINTF("Filter %s = %.*s\n", filter, len, value);
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if (strcmp(filter,"href")==0 && value[0]=='/')
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{
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++value;
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--len;
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}
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lastchar = value[len-1];
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value[len-1] = '\0';
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}
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#endif
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for (resource = (resource_t*)list_head(rest_get_resources()); resource; resource = resource->next)
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{
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#if COAP_LINK_FORMAT_FILTERING
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/* Filtering */
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if (len)
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{
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if (strcmp(filter,"href")==0)
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{
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attrib=strstr(resource->url, value);
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if (attrib==NULL || (value[-1]=='/' && attrib!=resource->url)) continue;
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end = attrib + strlen(attrib);
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}
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else
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{
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attrib=strstr(resource->attributes, filter);
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if (attrib==NULL || (attrib[strlen(filter)]!='=' && attrib[strlen(filter)]!='"')) continue;
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attrib += strlen(filter)+2;
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end = strchr(attrib, '"');
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}
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PRINTF("Filter: res has attrib %s (%s)\n", attrib, value);
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found = attrib;
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while ((found=strstr(found, value))!=NULL) {
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if (found > end)
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{
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found = NULL;
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break;
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}
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if (lastchar==found[len-1] || lastchar=='*')
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{
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break;
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}
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++found;
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}
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if (found==NULL)
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{
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continue;
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}
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PRINTF("Filter: res has prefix %s\n", found);
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if (lastchar!='*' && (found[len]!='"' && found[len]!=' ' && found[len]!='\0')) continue;
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PRINTF("Filter: res has match\n");
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}
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#endif
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PRINTF("res: /%s (%p)\npos: s%d, o%d, b%d\n", resource->url, resource, strpos, *offset, bufpos);
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if (strpos>0)
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{
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if (strpos >= *offset && bufpos < preferred_size)
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{
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buffer[bufpos++] = ',';
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}
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++strpos;
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}
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if (strpos >= *offset && bufpos < preferred_size)
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{
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buffer[bufpos++] = '<';
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}
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++strpos;
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if (strpos >= *offset && bufpos < preferred_size)
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{
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buffer[bufpos++] = '/';
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}
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++strpos;
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tmplen = strlen(resource->url);
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if (strpos+tmplen > *offset)
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{
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bufpos += snprintf((char *) buffer + bufpos, preferred_size - bufpos + 1,
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"%s", resource->url + ((*offset-(int32_t)strpos > 0) ? (*offset-(int32_t)strpos) : 0));
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/* minimal-net requires these casts */
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if (bufpos >= preferred_size)
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{
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break;
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}
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}
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strpos += tmplen;
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if (strpos >= *offset && bufpos < preferred_size)
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{
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buffer[bufpos++] = '>';
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}
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++strpos;
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if (resource->attributes[0])
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{
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if (strpos >= *offset && bufpos < preferred_size)
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{
|
||||
buffer[bufpos++] = ';';
|
||||
}
|
||||
++strpos;
|
||||
|
||||
tmplen = strlen(resource->attributes);
|
||||
if (strpos+tmplen > *offset)
|
||||
{
|
||||
bufpos += snprintf((char *) buffer + bufpos, preferred_size - bufpos + 1,
|
||||
"%s", resource->attributes + (*offset-(int32_t)strpos > 0 ? *offset-(int32_t)strpos : 0));
|
||||
if (bufpos >= preferred_size)
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
strpos += tmplen;
|
||||
}
|
||||
|
||||
/* buffer full, but resource not completed yet; or: do not break if resource exactly fills buffer. */
|
||||
if (bufpos >= preferred_size && strpos-bufpos > *offset)
|
||||
{
|
||||
PRINTF("res: BREAK at %s (%p)\n", resource->url, resource);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (bufpos>0) {
|
||||
PRINTF("BUF %d: %.*s\n", bufpos, bufpos, (char *) buffer);
|
||||
|
||||
coap_set_payload(response, buffer, bufpos );
|
||||
coap_set_header_content_type(response, APPLICATION_LINK_FORMAT);
|
||||
}
|
||||
else if (strpos>0)
|
||||
{
|
||||
PRINTF("well_known_core_handler(): bufpos<=0\n");
|
||||
|
||||
coap_set_status_code(response, BAD_OPTION_4_02);
|
||||
coap_set_payload(response, "BlockOutOfScope", 15);
|
||||
}
|
||||
|
||||
if (resource==NULL) {
|
||||
PRINTF("res: DONE\n");
|
||||
*offset = -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("res: MORE at %s (%p)\n", resource->url, resource);
|
||||
*offset += preferred_size;
|
||||
}
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
PROCESS_THREAD(coap_receiver, ev, data)
|
||||
{
|
||||
PROCESS_BEGIN();
|
||||
PRINTF("Starting CoAP-12 receiver...\n");
|
||||
|
||||
rest_activate_resource(&resource_well_known_core);
|
||||
|
||||
coap_register_as_transaction_handler();
|
||||
coap_init_connection(SERVER_LISTEN_PORT);
|
||||
|
||||
while(1) {
|
||||
PROCESS_YIELD();
|
||||
|
||||
if(ev == tcpip_event) {
|
||||
coap_receive();
|
||||
} else if (ev == PROCESS_EVENT_TIMER) {
|
||||
/* retransmissions are handled here */
|
||||
coap_check_transactions();
|
||||
}
|
||||
} /* while (1) */
|
||||
|
||||
PROCESS_END();
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*- Client part --------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void coap_blocking_request_callback(void *callback_data, void *response) {
|
||||
struct request_state_t *state = (struct request_state_t *) callback_data;
|
||||
state->response = (coap_packet_t*) response;
|
||||
process_poll(state->process);
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
PT_THREAD(coap_blocking_request(struct request_state_t *state, process_event_t ev,
|
||||
uip_ipaddr_t *remote_ipaddr, uint16_t remote_port,
|
||||
coap_packet_t *request,
|
||||
blocking_response_handler request_callback)) {
|
||||
PT_BEGIN(&state->pt);
|
||||
|
||||
static uint8_t more;
|
||||
static uint32_t res_block;
|
||||
static uint8_t block_error;
|
||||
|
||||
state->block_num = 0;
|
||||
state->response = NULL;
|
||||
state->process = PROCESS_CURRENT();
|
||||
|
||||
more = 0;
|
||||
res_block = 0;
|
||||
block_error = 0;
|
||||
|
||||
do {
|
||||
request->mid = coap_get_mid();
|
||||
if ((state->transaction = coap_new_transaction(request->mid, remote_ipaddr, remote_port)))
|
||||
{
|
||||
state->transaction->callback = coap_blocking_request_callback;
|
||||
state->transaction->callback_data = state;
|
||||
|
||||
if (state->block_num>0)
|
||||
{
|
||||
coap_set_header_block2(request, state->block_num, 0, REST_MAX_CHUNK_SIZE);
|
||||
}
|
||||
|
||||
state->transaction->packet_len = coap_serialize_message(request, state->transaction->packet);
|
||||
|
||||
coap_send_transaction(state->transaction);
|
||||
PRINTF("Requested #%lu (MID %u)\n", state->block_num, request->mid);
|
||||
|
||||
PT_YIELD_UNTIL(&state->pt, ev == PROCESS_EVENT_POLL);
|
||||
|
||||
if (!state->response)
|
||||
{
|
||||
PRINTF("Server not responding\n");
|
||||
PT_EXIT(&state->pt);
|
||||
}
|
||||
|
||||
coap_get_header_block2(state->response, &res_block, &more, NULL, NULL);
|
||||
|
||||
PRINTF("Received #%lu%s (%u bytes)\n", res_block, more ? "+" : "", state->response->payload_len);
|
||||
|
||||
if (res_block==state->block_num)
|
||||
{
|
||||
request_callback(state->response);
|
||||
++(state->block_num);
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("WRONG BLOCK %lu/%lu\n", res_block, state->block_num);
|
||||
++block_error;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("Could not allocate transaction buffer");
|
||||
PT_EXIT(&state->pt);
|
||||
}
|
||||
} while (more && block_error<COAP_MAX_ATTEMPTS);
|
||||
|
||||
PT_END(&state->pt);
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*- Engine Interface ---------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
const struct rest_implementation coap_rest_implementation = {
|
||||
"CoAP-12",
|
||||
|
||||
coap_receiver_init,
|
||||
coap_set_service_callback,
|
||||
|
||||
coap_get_header_uri_path,
|
||||
coap_set_header_uri_path,
|
||||
coap_get_rest_method,
|
||||
coap_set_status_code,
|
||||
|
||||
coap_get_header_content_type,
|
||||
coap_set_header_content_type,
|
||||
coap_get_header_accept,
|
||||
coap_get_header_size,
|
||||
coap_set_header_size,
|
||||
coap_get_header_max_age,
|
||||
coap_set_header_max_age,
|
||||
coap_set_header_etag,
|
||||
coap_get_header_if_match,
|
||||
coap_get_header_if_none_match,
|
||||
coap_get_header_uri_host,
|
||||
coap_set_header_location_path,
|
||||
|
||||
coap_get_payload,
|
||||
coap_set_payload,
|
||||
|
||||
coap_get_header_uri_query,
|
||||
coap_get_query_variable,
|
||||
coap_get_post_variable,
|
||||
|
||||
coap_notify_observers,
|
||||
(restful_post_handler) coap_observe_handler,
|
||||
|
||||
NULL, /* default pre-handler (set separate handler after activation if needed) */
|
||||
NULL, /* default post-handler for non-observable resources */
|
||||
|
||||
{
|
||||
CONTENT_2_05,
|
||||
CREATED_2_01,
|
||||
CHANGED_2_04,
|
||||
DELETED_2_02,
|
||||
VALID_2_03,
|
||||
BAD_REQUEST_4_00,
|
||||
UNAUTHORIZED_4_01,
|
||||
BAD_OPTION_4_02,
|
||||
FORBIDDEN_4_03,
|
||||
NOT_FOUND_4_04,
|
||||
METHOD_NOT_ALLOWED_4_05,
|
||||
NOT_ACCEPTABLE_4_06,
|
||||
REQUEST_ENTITY_TOO_LARGE_4_13,
|
||||
UNSUPPORTED_MEDIA_TYPE_4_15,
|
||||
INTERNAL_SERVER_ERROR_5_00,
|
||||
NOT_IMPLEMENTED_5_01,
|
||||
BAD_GATEWAY_5_02,
|
||||
SERVICE_UNAVAILABLE_5_03,
|
||||
GATEWAY_TIMEOUT_5_04,
|
||||
PROXYING_NOT_SUPPORTED_5_05
|
||||
},
|
||||
|
||||
{
|
||||
TEXT_PLAIN,
|
||||
TEXT_XML,
|
||||
TEXT_CSV,
|
||||
TEXT_HTML,
|
||||
IMAGE_GIF,
|
||||
IMAGE_JPEG,
|
||||
IMAGE_PNG,
|
||||
IMAGE_TIFF,
|
||||
AUDIO_RAW,
|
||||
VIDEO_RAW,
|
||||
APPLICATION_LINK_FORMAT,
|
||||
APPLICATION_XML,
|
||||
APPLICATION_OCTET_STREAM,
|
||||
APPLICATION_RDF_XML,
|
||||
APPLICATION_SOAP_XML,
|
||||
APPLICATION_ATOM_XML,
|
||||
APPLICATION_XMPP_XML,
|
||||
APPLICATION_EXI,
|
||||
APPLICATION_FASTINFOSET,
|
||||
APPLICATION_SOAP_FASTINFOSET,
|
||||
APPLICATION_JSON,
|
||||
APPLICATION_X_OBIX_BINARY
|
||||
}
|
||||
};
|
||||
94
apps/er-coap-12/er-coap-12-engine.h
Normal file
94
apps/er-coap-12/er-coap-12-engine.h
Normal file
|
|
@ -0,0 +1,94 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP implementation of the REST Engine
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_SERVER_H_
|
||||
#define COAP_SERVER_H_
|
||||
|
||||
#if !defined(REST)
|
||||
#error "Define REST to \"coap_rest_implementation\""
|
||||
#endif
|
||||
|
||||
#include "er-coap-12.h"
|
||||
#include "er-coap-12-transactions.h"
|
||||
#include "er-coap-12-observing.h"
|
||||
#include "er-coap-12-separate.h"
|
||||
|
||||
#include "pt.h"
|
||||
|
||||
/* Declare server process */
|
||||
PROCESS_NAME(coap_receiver);
|
||||
|
||||
#define SERVER_LISTEN_PORT UIP_HTONS(COAP_SERVER_PORT)
|
||||
|
||||
typedef coap_packet_t rest_request_t;
|
||||
typedef coap_packet_t rest_response_t;
|
||||
|
||||
extern const struct rest_implementation coap_rest_implementation;
|
||||
|
||||
void coap_receiver_init(void);
|
||||
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
/*- Client part ---------------------------------------------------------------------*/
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
struct request_state_t {
|
||||
struct pt pt;
|
||||
struct process *process;
|
||||
coap_transaction_t *transaction;
|
||||
coap_packet_t *response;
|
||||
uint32_t block_num;
|
||||
};
|
||||
|
||||
typedef void (*blocking_response_handler) (void* response);
|
||||
|
||||
PT_THREAD(coap_blocking_request(struct request_state_t *state, process_event_t ev,
|
||||
uip_ipaddr_t *remote_ipaddr, uint16_t remote_port,
|
||||
coap_packet_t *request,
|
||||
blocking_response_handler request_callback));
|
||||
|
||||
#define COAP_BLOCKING_REQUEST(server_addr, server_port, request, chunk_handler) \
|
||||
{ \
|
||||
static struct request_state_t request_state; \
|
||||
PT_SPAWN(process_pt, &request_state.pt, \
|
||||
coap_blocking_request(&request_state, ev, \
|
||||
server_addr, server_port, \
|
||||
request, chunk_handler) \
|
||||
); \
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
|
||||
#endif /* COAP_SERVER_H_ */
|
||||
255
apps/er-coap-12/er-coap-12-observing.c
Normal file
255
apps/er-coap-12/er-coap-12-observing.c
Normal file
|
|
@ -0,0 +1,255 @@
|
|||
/*
|
||||
* Copyright (c) 2011, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for observing resources
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "er-coap-12-observing.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
|
||||
MEMB(observers_memb, coap_observer_t, COAP_MAX_OBSERVERS);
|
||||
LIST(observers_list);
|
||||
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
coap_observer_t *
|
||||
coap_add_observer(uip_ipaddr_t *addr, uint16_t port, const uint8_t *token, size_t token_len, const char *url)
|
||||
{
|
||||
/* Remove existing observe relationship, if any. */
|
||||
coap_remove_observer_by_url(addr, port, url);
|
||||
|
||||
coap_observer_t *o = memb_alloc(&observers_memb);
|
||||
|
||||
if (o)
|
||||
{
|
||||
o->url = url;
|
||||
uip_ipaddr_copy(&o->addr, addr);
|
||||
o->port = port;
|
||||
o->token_len = token_len;
|
||||
memcpy(o->token, token, token_len);
|
||||
o->last_mid = 0;
|
||||
|
||||
stimer_set(&o->refresh_timer, COAP_OBSERVING_REFRESH_INTERVAL);
|
||||
|
||||
PRINTF("Adding observer for /%s [0x%02X%02X]\n", o->url, o->token[0], o->token[1]);
|
||||
list_add(observers_list, o);
|
||||
}
|
||||
|
||||
return o;
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_remove_observer(coap_observer_t *o)
|
||||
{
|
||||
PRINTF("Removing observer for /%s [0x%02X%02X]\n", o->url, o->token[0], o->token[1]);
|
||||
|
||||
memb_free(&observers_memb, o);
|
||||
list_remove(observers_list, o);
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_client(uip_ipaddr_t *addr, uint16_t port)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check client ");
|
||||
PRINT6ADDR(addr);
|
||||
PRINTF(":%u\n", port);
|
||||
if (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port)
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_token(uip_ipaddr_t *addr, uint16_t port, uint8_t *token, size_t token_len)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check Token 0x%02X%02X\n", token[0], token[1]);
|
||||
if (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port && obs->token_len==token_len && memcmp(obs->token, token, token_len)==0)
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_url(uip_ipaddr_t *addr, uint16_t port, const char *url)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check URL %p\n", url);
|
||||
if ((addr==NULL || (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port)) && (obs->url==url || memcmp(obs->url, url, strlen(obs->url))==0))
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_mid(uip_ipaddr_t *addr, uint16_t port, uint16_t mid)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check MID %u\n", mid);
|
||||
if (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port && obs->last_mid==mid)
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_notify_observers(resource_t *resource, int32_t obs_counter, void *notification)
|
||||
{
|
||||
coap_packet_t *const coap_res = (coap_packet_t *) notification;
|
||||
coap_observer_t* obs = NULL;
|
||||
uint8_t preferred_type = coap_res->type;
|
||||
|
||||
PRINTF("Observing: Notification from %s\n", resource->url);
|
||||
|
||||
/* Iterate over observers. */
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
if (obs->url==resource->url) /* using RESOURCE url pointer as handle */
|
||||
{
|
||||
coap_transaction_t *transaction = NULL;
|
||||
|
||||
/*TODO implement special transaction for CON, sharing the same buffer to allow for more observers. */
|
||||
|
||||
if ( (transaction = coap_new_transaction(coap_get_mid(), &obs->addr, obs->port)) )
|
||||
{
|
||||
PRINTF(" Observer ");
|
||||
PRINT6ADDR(&obs->addr);
|
||||
PRINTF(":%u\n", obs->port);
|
||||
|
||||
/* Update last MID for RST matching. */
|
||||
obs->last_mid = transaction->mid;
|
||||
|
||||
/* Prepare response */
|
||||
coap_res->mid = transaction->mid;
|
||||
if (obs_counter>=0) coap_set_header_observe(coap_res, obs_counter);
|
||||
coap_set_header_token(coap_res, obs->token, obs->token_len);
|
||||
|
||||
/* Use CON to check whether client is still there/interested after COAP_OBSERVING_REFRESH_INTERVAL. */
|
||||
if (stimer_expired(&obs->refresh_timer))
|
||||
{
|
||||
PRINTF(" Refreshing with CON\n");
|
||||
coap_res->type = COAP_TYPE_CON;
|
||||
stimer_restart(&obs->refresh_timer);
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_res->type = preferred_type;
|
||||
}
|
||||
|
||||
transaction->packet_len = coap_serialize_message(coap_res, transaction->packet);
|
||||
|
||||
coap_send_transaction(transaction);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_observe_handler(resource_t *resource, void *request, void *response)
|
||||
{
|
||||
coap_packet_t *const coap_req = (coap_packet_t *) request;
|
||||
coap_packet_t *const coap_res = (coap_packet_t *) response;
|
||||
|
||||
static char content[16];
|
||||
|
||||
if (coap_req->code==COAP_GET && coap_res->code<128) /* GET request and response without error code */
|
||||
{
|
||||
if (IS_OPTION(coap_req, COAP_OPTION_OBSERVE))
|
||||
{
|
||||
|
||||
if (coap_add_observer(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, coap_req->token, coap_req->token_len, resource->url))
|
||||
{
|
||||
coap_set_header_observe(coap_res, 0);
|
||||
/*
|
||||
* For demonstration purposes only. A subscription should return the same representation as a normal GET.
|
||||
* TODO: Comment the following line for any real application.
|
||||
*/
|
||||
coap_set_payload(coap_res, content, snprintf(content, sizeof(content), "Added %u/%u", list_length(observers_list), COAP_MAX_OBSERVERS));
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_res->code = SERVICE_UNAVAILABLE_5_03;
|
||||
coap_set_payload(coap_res, "TooManyObservers", 16);
|
||||
} /* if (added observer) */
|
||||
}
|
||||
else /* if (observe) */
|
||||
{
|
||||
/* Remove client if it is currently observing. */
|
||||
coap_remove_observer_by_url(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, resource->url);
|
||||
} /* if (observe) */
|
||||
}
|
||||
}
|
||||
82
apps/er-coap-12/er-coap-12-observing.h
Normal file
82
apps/er-coap-12/er-coap-12-observing.h
Normal file
|
|
@ -0,0 +1,82 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for observing resources
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_OBSERVING_H_
|
||||
#define COAP_OBSERVING_H_
|
||||
|
||||
#include "er-coap-12.h"
|
||||
#include "er-coap-12-transactions.h"
|
||||
|
||||
#ifndef COAP_MAX_OBSERVERS
|
||||
#define COAP_MAX_OBSERVERS COAP_MAX_OPEN_TRANSACTIONS-1
|
||||
#endif /* COAP_MAX_OBSERVERS */
|
||||
|
||||
/* Interval in seconds in which NON notifies are changed to CON notifies to check client. */
|
||||
#define COAP_OBSERVING_REFRESH_INTERVAL 60
|
||||
|
||||
#if COAP_MAX_OPEN_TRANSACTIONS<COAP_MAX_OBSERVERS
|
||||
#warning "COAP_MAX_OPEN_TRANSACTIONS smaller than COAP_MAX_OBSERVERS: cannot handle CON notifications"
|
||||
#endif
|
||||
|
||||
typedef struct coap_observer {
|
||||
struct coap_observer *next; /* for LIST */
|
||||
|
||||
const char *url;
|
||||
uip_ipaddr_t addr;
|
||||
uint16_t port;
|
||||
uint8_t token_len;
|
||||
uint8_t token[COAP_TOKEN_LEN];
|
||||
uint16_t last_mid;
|
||||
struct stimer refresh_timer;
|
||||
} coap_observer_t;
|
||||
|
||||
list_t coap_get_observers(void);
|
||||
|
||||
coap_observer_t *coap_add_observer(uip_ipaddr_t *addr, uint16_t port, const uint8_t *token, size_t token_len, const char *url);
|
||||
|
||||
void coap_remove_observer(coap_observer_t *o);
|
||||
int coap_remove_observer_by_client(uip_ipaddr_t *addr, uint16_t port);
|
||||
int coap_remove_observer_by_token(uip_ipaddr_t *addr, uint16_t port, uint8_t *token, size_t token_len);
|
||||
int coap_remove_observer_by_url(uip_ipaddr_t *addr, uint16_t port, const char *url);
|
||||
int coap_remove_observer_by_mid(uip_ipaddr_t *addr, uint16_t port, uint16_t mid);
|
||||
|
||||
void coap_notify_observers(resource_t *resource, int32_t obs_counter, void *notification);
|
||||
|
||||
void coap_observe_handler(resource_t *resource, void *request, void *response);
|
||||
|
||||
#endif /* COAP_OBSERVING_H_ */
|
||||
117
apps/er-coap-12/er-coap-12-separate.c
Normal file
117
apps/er-coap-12/er-coap-12-separate.c
Normal file
|
|
@ -0,0 +1,117 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for separate responses
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "er-coap-12-separate.h"
|
||||
#include "er-coap-12-transactions.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_separate_reject()
|
||||
{
|
||||
coap_error_code = SERVICE_UNAVAILABLE_5_03;
|
||||
coap_error_message = "AlreadyInUse";
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
int
|
||||
coap_separate_accept(void *request, coap_separate_t *separate_store)
|
||||
{
|
||||
coap_packet_t *const coap_req = (coap_packet_t *) request;
|
||||
coap_transaction_t *const t = coap_get_transaction_by_mid(coap_req->mid);
|
||||
|
||||
PRINTF("Separate ACCEPT: /%.*s MID %u\n", coap_req->uri_path_len, coap_req->uri_path, coap_req->mid);
|
||||
if (t)
|
||||
{
|
||||
/* Send separate ACK for CON. */
|
||||
if (coap_req->type==COAP_TYPE_CON)
|
||||
{
|
||||
coap_packet_t ack[1];
|
||||
/* ACK with empty code (0) */
|
||||
coap_init_message(ack, COAP_TYPE_ACK, 0, coap_req->mid);
|
||||
/* Serializing into IPBUF: Only overwrites header parts that are already parsed into the request struct. */
|
||||
coap_send_message(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, (uip_appdata), coap_serialize_message(ack, uip_appdata));
|
||||
}
|
||||
|
||||
/* Store remote address. */
|
||||
uip_ipaddr_copy(&separate_store->addr, &t->addr);
|
||||
separate_store->port = t->port;
|
||||
|
||||
/* Store correct response type. */
|
||||
separate_store->type = coap_req->type==COAP_TYPE_CON ? COAP_TYPE_CON : COAP_TYPE_NON;
|
||||
separate_store->mid = coap_get_mid(); /* if it was a NON, we burned one MID in the engine... */
|
||||
|
||||
memcpy(separate_store->token, coap_req->token, coap_req->token_len);
|
||||
separate_store->token_len = coap_req->token_len;
|
||||
|
||||
separate_store->block2_num = coap_req->block2_num;
|
||||
separate_store->block2_size = coap_req->block2_size;
|
||||
|
||||
/* Signal the engine to skip automatic response and clear transaction by engine. */
|
||||
coap_error_code = MANUAL_RESPONSE;
|
||||
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("ERROR: Response transaction for separate request not found!\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_separate_resume(void *response, coap_separate_t *separate_store, uint8_t code)
|
||||
{
|
||||
coap_init_message(response, separate_store->type, code, separate_store->mid);
|
||||
if (separate_store->token_len)
|
||||
{
|
||||
coap_set_header_token(response, separate_store->token, separate_store->token_len);
|
||||
}
|
||||
}
|
||||
66
apps/er-coap-12/er-coap-12-separate.h
Normal file
66
apps/er-coap-12/er-coap-12-separate.h
Normal file
|
|
@ -0,0 +1,66 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for separate responses
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_SEPARATE_H_
|
||||
#define COAP_SEPARATE_H_
|
||||
|
||||
#include "er-coap-12.h"
|
||||
|
||||
typedef struct coap_separate {
|
||||
|
||||
uip_ipaddr_t addr;
|
||||
uint16_t port;
|
||||
|
||||
coap_message_type_t type;
|
||||
uint16_t mid;
|
||||
|
||||
uint8_t token_len;
|
||||
uint8_t token[COAP_TOKEN_LEN];
|
||||
|
||||
/* separate + blockwise is untested! */
|
||||
uint32_t block2_num;
|
||||
uint16_t block2_size;
|
||||
|
||||
} coap_separate_t;
|
||||
|
||||
int coap_separate_handler(resource_t *resource, void *request, void *response);
|
||||
void coap_separate_reject();
|
||||
int coap_separate_accept(void *request, coap_separate_t *separate_store);
|
||||
void coap_separate_resume(void *response, coap_separate_t *separate_store, uint8_t code);
|
||||
|
||||
#endif /* COAP_SEPARATE_H_ */
|
||||
199
apps/er-coap-12/er-coap-12-transactions.c
Normal file
199
apps/er-coap-12/er-coap-12-transactions.c
Normal file
|
|
@ -0,0 +1,199 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for reliable transport
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include "contiki.h"
|
||||
#include "contiki-net.h"
|
||||
|
||||
#include "er-coap-12-transactions.h"
|
||||
#include "er-coap-12-observing.h"
|
||||
|
||||
/*
|
||||
* Modulo mask (+1 and +0.5 for rounding) for a random number to get the tick number for the random
|
||||
* retransmission time between COAP_RESPONSE_TIMEOUT and COAP_RESPONSE_TIMEOUT*COAP_RESPONSE_RANDOM_FACTOR.
|
||||
*/
|
||||
#define COAP_RESPONSE_TIMEOUT_TICKS (CLOCK_SECOND * COAP_RESPONSE_TIMEOUT)
|
||||
#define COAP_RESPONSE_TIMEOUT_BACKOFF_MASK ((CLOCK_SECOND * COAP_RESPONSE_TIMEOUT * (COAP_RESPONSE_RANDOM_FACTOR - 1)) + 1.5)
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#include <stdio.h>
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
|
||||
MEMB(transactions_memb, coap_transaction_t, COAP_MAX_OPEN_TRANSACTIONS);
|
||||
LIST(transactions_list);
|
||||
|
||||
|
||||
static struct process *transaction_handler_process = NULL;
|
||||
|
||||
void
|
||||
coap_register_as_transaction_handler()
|
||||
{
|
||||
transaction_handler_process = PROCESS_CURRENT();
|
||||
}
|
||||
|
||||
coap_transaction_t *
|
||||
coap_new_transaction(uint16_t mid, uip_ipaddr_t *addr, uint16_t port)
|
||||
{
|
||||
coap_transaction_t *t = memb_alloc(&transactions_memb);
|
||||
|
||||
if (t)
|
||||
{
|
||||
t->mid = mid;
|
||||
t->retrans_counter = 0;
|
||||
|
||||
/* save client address */
|
||||
uip_ipaddr_copy(&t->addr, addr);
|
||||
t->port = port;
|
||||
|
||||
list_add(transactions_list, t); /* List itself makes sure same element is not added twice. */
|
||||
}
|
||||
|
||||
return t;
|
||||
}
|
||||
|
||||
void
|
||||
coap_send_transaction(coap_transaction_t *t)
|
||||
{
|
||||
PRINTF("Sending transaction %u\n", t->mid);
|
||||
|
||||
coap_send_message(&t->addr, t->port, t->packet, t->packet_len);
|
||||
|
||||
if (COAP_TYPE_CON==((COAP_HEADER_TYPE_MASK & t->packet[0])>>COAP_HEADER_TYPE_POSITION))
|
||||
{
|
||||
if (t->retrans_counter<COAP_MAX_RETRANSMIT)
|
||||
{
|
||||
/* Not timed out yet. */
|
||||
PRINTF("Keeping transaction %u\n", t->mid);
|
||||
|
||||
if (t->retrans_counter==0)
|
||||
{
|
||||
t->retrans_timer.timer.interval = COAP_RESPONSE_TIMEOUT_TICKS + (random_rand() % (clock_time_t) COAP_RESPONSE_TIMEOUT_BACKOFF_MASK);
|
||||
PRINTF("Initial interval %f\n", (float)t->retrans_timer.timer.interval/CLOCK_SECOND);
|
||||
}
|
||||
else
|
||||
{
|
||||
t->retrans_timer.timer.interval <<= 1; /* double */
|
||||
PRINTF("Doubled (%u) interval %f\n", t->retrans_counter, (float)t->retrans_timer.timer.interval/CLOCK_SECOND);
|
||||
}
|
||||
|
||||
/*FIXME
|
||||
* Hack: Setting timer for responsible process.
|
||||
* Maybe there is a better way, but avoid posting everything to the process.
|
||||
*/
|
||||
struct process *process_actual = PROCESS_CURRENT();
|
||||
process_current = transaction_handler_process;
|
||||
etimer_restart(&t->retrans_timer); /* interval updated above */
|
||||
process_current = process_actual;
|
||||
|
||||
t = NULL;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Timed out. */
|
||||
PRINTF("Timeout\n");
|
||||
restful_response_handler callback = t->callback;
|
||||
void *callback_data = t->callback_data;
|
||||
|
||||
/* handle observers */
|
||||
coap_remove_observer_by_client(&t->addr, t->port);
|
||||
|
||||
coap_clear_transaction(t);
|
||||
|
||||
if (callback) {
|
||||
callback(callback_data, NULL);
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_clear_transaction(t);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
coap_clear_transaction(coap_transaction_t *t)
|
||||
{
|
||||
if (t)
|
||||
{
|
||||
PRINTF("Freeing transaction %u: %p\n", t->mid, t);
|
||||
|
||||
etimer_stop(&t->retrans_timer);
|
||||
list_remove(transactions_list, t);
|
||||
memb_free(&transactions_memb, t);
|
||||
}
|
||||
}
|
||||
|
||||
coap_transaction_t *
|
||||
coap_get_transaction_by_mid(uint16_t mid)
|
||||
{
|
||||
coap_transaction_t *t = NULL;
|
||||
|
||||
for (t = (coap_transaction_t*)list_head(transactions_list); t; t = t->next)
|
||||
{
|
||||
if (t->mid==mid)
|
||||
{
|
||||
PRINTF("Found transaction for MID %u: %p\n", t->mid, t);
|
||||
return t;
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void
|
||||
coap_check_transactions()
|
||||
{
|
||||
coap_transaction_t *t = NULL;
|
||||
|
||||
for (t = (coap_transaction_t*)list_head(transactions_list); t; t = t->next)
|
||||
{
|
||||
if (etimer_expired(&t->retrans_timer))
|
||||
{
|
||||
++(t->retrans_counter);
|
||||
PRINTF("Retransmitting %u (%u)\n", t->mid, t->retrans_counter);
|
||||
coap_send_transaction(t);
|
||||
}
|
||||
}
|
||||
}
|
||||
78
apps/er-coap-12/er-coap-12-transactions.h
Normal file
78
apps/er-coap-12/er-coap-12-transactions.h
Normal file
|
|
@ -0,0 +1,78 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for reliable transport
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_TRANSACTIONS_H_
|
||||
#define COAP_TRANSACTIONS_H_
|
||||
|
||||
#include "er-coap-12.h"
|
||||
|
||||
/*
|
||||
* The number of concurrent messages that can be stored for retransmission in the transaction layer.
|
||||
*/
|
||||
#ifndef COAP_MAX_OPEN_TRANSACTIONS
|
||||
#define COAP_MAX_OPEN_TRANSACTIONS 4
|
||||
#endif /* COAP_MAX_OPEN_TRANSACTIONS */
|
||||
|
||||
/* container for transactions with message buffer and retransmission info */
|
||||
typedef struct coap_transaction {
|
||||
struct coap_transaction *next; /* for LIST */
|
||||
|
||||
uint16_t mid;
|
||||
struct etimer retrans_timer;
|
||||
uint8_t retrans_counter;
|
||||
|
||||
uip_ipaddr_t addr;
|
||||
uint16_t port;
|
||||
|
||||
restful_response_handler callback;
|
||||
void *callback_data;
|
||||
|
||||
uint16_t packet_len;
|
||||
uint8_t packet[COAP_MAX_PACKET_SIZE+1]; /* +1 for the terminating '\0' to simply and savely use snprintf(buf, len+1, "", ...) in the resource handler. */
|
||||
} coap_transaction_t;
|
||||
|
||||
void coap_register_as_transaction_handler();
|
||||
|
||||
coap_transaction_t *coap_new_transaction(uint16_t mid, uip_ipaddr_t *addr, uint16_t port);
|
||||
void coap_send_transaction(coap_transaction_t *t);
|
||||
void coap_clear_transaction(coap_transaction_t *t);
|
||||
coap_transaction_t *coap_get_transaction_by_mid(uint16_t mid);
|
||||
|
||||
void coap_check_transactions();
|
||||
|
||||
#endif /* COAP_TRANSACTIONS_H_ */
|
||||
1155
apps/er-coap-12/er-coap-12.c
Normal file
1155
apps/er-coap-12/er-coap-12.c
Normal file
File diff suppressed because it is too large
Load diff
390
apps/er-coap-12/er-coap-12.h
Normal file
390
apps/er-coap-12/er-coap-12.h
Normal file
|
|
@ -0,0 +1,390 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* An implementation of the Constrained Application Protocol (draft 12)
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_12_H_
|
||||
#define COAP_12_H_
|
||||
|
||||
#include <stddef.h> /* for size_t */
|
||||
#include "contiki-net.h"
|
||||
#include "erbium.h"
|
||||
|
||||
#define COAP_LINK_FORMAT_FILTERING 1
|
||||
|
||||
#define COAP_DEFAULT_PORT 5683
|
||||
|
||||
#ifndef COAP_SERVER_PORT
|
||||
#define COAP_SERVER_PORT COAP_DEFAULT_PORT
|
||||
#endif
|
||||
|
||||
#define COAP_DEFAULT_MAX_AGE 60
|
||||
#define COAP_RESPONSE_TIMEOUT 2
|
||||
#define COAP_RESPONSE_RANDOM_FACTOR 1.5
|
||||
#define COAP_MAX_RETRANSMIT 4
|
||||
|
||||
#define COAP_HEADER_LEN 4 /* | oc:0xF0 type:0x0C version:0x03 | code | mid:0x00FF | mid:0xFF00 | */
|
||||
#define COAP_ETAG_LEN 8 /* The maximum number of bytes for the ETag */
|
||||
#define COAP_TOKEN_LEN 8 /* The maximum number of bytes for the Token */
|
||||
#define COAP_MAX_ACCEPT_NUM 2 /* The maximum number of accept preferences to parse/store */
|
||||
|
||||
#define COAP_HEADER_VERSION_MASK 0xC0
|
||||
#define COAP_HEADER_VERSION_POSITION 6
|
||||
#define COAP_HEADER_TYPE_MASK 0x30
|
||||
#define COAP_HEADER_TYPE_POSITION 4
|
||||
#define COAP_HEADER_OPTION_COUNT_MASK 0x0F
|
||||
#define COAP_HEADER_OPTION_COUNT_POSITION 0
|
||||
|
||||
#define COAP_HEADER_OPTION_DELTA_MASK 0xF0
|
||||
#define COAP_HEADER_OPTION_SHORT_LENGTH_MASK 0x0F
|
||||
|
||||
/*
|
||||
* Conservative size limit, as not all options have to be set at the same time.
|
||||
*/
|
||||
#ifndef COAP_MAX_HEADER_SIZE
|
||||
/* Hdr CoT Age Tag Obs Tok Blo strings */
|
||||
#define COAP_MAX_HEADER_SIZE (4 + 3 + 5 + 1+COAP_ETAG_LEN + 3 + 1+COAP_TOKEN_LEN + 4 + 30) /* 70 */
|
||||
#endif /* COAP_MAX_HEADER_SIZE */
|
||||
|
||||
#define COAP_MAX_PACKET_SIZE (COAP_MAX_HEADER_SIZE + REST_MAX_CHUNK_SIZE)
|
||||
/* 0/14 48 for IPv6 (28 for IPv4) */
|
||||
#if COAP_MAX_PACKET_SIZE > (UIP_BUFSIZE - UIP_LLH_LEN - UIP_IPUDPH_LEN)
|
||||
#error "UIP_CONF_BUFFER_SIZE too small for REST_MAX_CHUNK_SIZE"
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Maximum number of failed request attempts before action
|
||||
*/
|
||||
#ifndef COAP_MAX_ATTEMPTS
|
||||
#define COAP_MAX_ATTEMPTS 4
|
||||
#endif /* COAP_MAX_ATTEMPTS */
|
||||
|
||||
#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
|
||||
#define UIP_UDP_BUF ((struct uip_udp_hdr *)&uip_buf[uip_l2_l3_hdr_len])
|
||||
|
||||
/* Bitmap for set options */
|
||||
enum { OPTION_MAP_SIZE = sizeof(uint8_t) * 8 };
|
||||
#define SET_OPTION(packet, opt) ((packet)->options[opt / OPTION_MAP_SIZE] |= 1 << (opt % OPTION_MAP_SIZE))
|
||||
#define IS_OPTION(packet, opt) ((packet)->options[opt / OPTION_MAP_SIZE] & (1 << (opt % OPTION_MAP_SIZE)))
|
||||
|
||||
#ifndef MIN
|
||||
#define MIN(a, b) ((a) < (b)? (a) : (b))
|
||||
#endif /* MIN */
|
||||
|
||||
/* CoAP message types */
|
||||
typedef enum {
|
||||
COAP_TYPE_CON, /* confirmables */
|
||||
COAP_TYPE_NON, /* non-confirmables */
|
||||
COAP_TYPE_ACK, /* acknowledgements */
|
||||
COAP_TYPE_RST /* reset */
|
||||
} coap_message_type_t;
|
||||
|
||||
/* CoAP request method codes */
|
||||
typedef enum {
|
||||
COAP_GET = 1,
|
||||
COAP_POST,
|
||||
COAP_PUT,
|
||||
COAP_DELETE
|
||||
} coap_method_t;
|
||||
|
||||
/* CoAP response codes */
|
||||
typedef enum {
|
||||
NO_ERROR = 0,
|
||||
|
||||
CREATED_2_01 = 65, /* CREATED */
|
||||
DELETED_2_02 = 66, /* DELETED */
|
||||
VALID_2_03 = 67, /* NOT_MODIFIED */
|
||||
CHANGED_2_04 = 68, /* CHANGED */
|
||||
CONTENT_2_05 = 69, /* OK */
|
||||
|
||||
BAD_REQUEST_4_00 = 128, /* BAD_REQUEST */
|
||||
UNAUTHORIZED_4_01 = 129, /* UNAUTHORIZED */
|
||||
BAD_OPTION_4_02 = 130, /* BAD_OPTION */
|
||||
FORBIDDEN_4_03 = 131, /* FORBIDDEN */
|
||||
NOT_FOUND_4_04 = 132, /* NOT_FOUND */
|
||||
METHOD_NOT_ALLOWED_4_05 = 133, /* METHOD_NOT_ALLOWED */
|
||||
NOT_ACCEPTABLE_4_06 = 134, /* NOT_ACCEPTABLE */
|
||||
PRECONDITION_FAILED_4_12 = 140, /* BAD_REQUEST */
|
||||
REQUEST_ENTITY_TOO_LARGE_4_13 = 141, /* REQUEST_ENTITY_TOO_LARGE */
|
||||
UNSUPPORTED_MEDIA_TYPE_4_15 = 143, /* UNSUPPORTED_MEDIA_TYPE */
|
||||
|
||||
INTERNAL_SERVER_ERROR_5_00 = 160, /* INTERNAL_SERVER_ERROR */
|
||||
NOT_IMPLEMENTED_5_01 = 161, /* NOT_IMPLEMENTED */
|
||||
BAD_GATEWAY_5_02 = 162, /* BAD_GATEWAY */
|
||||
SERVICE_UNAVAILABLE_5_03 = 163, /* SERVICE_UNAVAILABLE */
|
||||
GATEWAY_TIMEOUT_5_04 = 164, /* GATEWAY_TIMEOUT */
|
||||
PROXYING_NOT_SUPPORTED_5_05 = 165, /* PROXYING_NOT_SUPPORTED */
|
||||
|
||||
/* Erbium errors */
|
||||
MEMORY_ALLOCATION_ERROR = 192,
|
||||
PACKET_SERIALIZATION_ERROR,
|
||||
|
||||
/* Erbium hooks */
|
||||
MANUAL_RESPONSE
|
||||
|
||||
} coap_status_t;
|
||||
|
||||
/* CoAP header options */
|
||||
typedef enum {
|
||||
COAP_OPTION_IF_MATCH = 1, /* 0-8 B */
|
||||
COAP_OPTION_URI_HOST = 3, /* 1-255 B */
|
||||
COAP_OPTION_ETAG = 4, /* 1-8 B */
|
||||
COAP_OPTION_IF_NONE_MATCH = 5, /* 0 B */
|
||||
COAP_OPTION_OBSERVE = 6, /* 0-3 B */
|
||||
COAP_OPTION_URI_PORT = 7, /* 0-2 B */
|
||||
COAP_OPTION_LOCATION_PATH = 8, /* 0-255 B */
|
||||
COAP_OPTION_URI_PATH = 11, /* 0-255 B */
|
||||
COAP_OPTION_CONTENT_TYPE = 12, /* 0-2 B */
|
||||
COAP_OPTION_MAX_AGE = 14, /* 0-4 B */
|
||||
COAP_OPTION_URI_QUERY = 15, /* 0-270 B */
|
||||
COAP_OPTION_ACCEPT = 16, /* 0-2 B */
|
||||
COAP_OPTION_TOKEN = 19, /* 1-8 B */
|
||||
COAP_OPTION_LOCATION_QUERY = 20, /* 1-270 B */
|
||||
COAP_OPTION_BLOCK2 = 23, /* 1-3 B */
|
||||
COAP_OPTION_BLOCK1 = 27, /* 1-3 B */
|
||||
COAP_OPTION_SIZE = 28, /* 0-4 B */
|
||||
COAP_OPTION_PROXY_URI = 35, /* 1-270 B */
|
||||
} coap_option_t;
|
||||
|
||||
/* CoAP Content-Types */
|
||||
typedef enum {
|
||||
TEXT_PLAIN = 0,
|
||||
TEXT_XML = 1, /* Indented types are not in the initial registry. */
|
||||
TEXT_CSV = 2,
|
||||
TEXT_HTML = 3,
|
||||
IMAGE_GIF = 21,
|
||||
IMAGE_JPEG = 22,
|
||||
IMAGE_PNG = 23,
|
||||
IMAGE_TIFF = 24,
|
||||
AUDIO_RAW = 25,
|
||||
VIDEO_RAW = 26,
|
||||
APPLICATION_LINK_FORMAT = 40,
|
||||
APPLICATION_XML = 41,
|
||||
APPLICATION_OCTET_STREAM = 42,
|
||||
APPLICATION_RDF_XML = 43,
|
||||
APPLICATION_SOAP_XML = 44,
|
||||
APPLICATION_ATOM_XML = 45,
|
||||
APPLICATION_XMPP_XML = 46,
|
||||
APPLICATION_EXI = 47,
|
||||
APPLICATION_FASTINFOSET = 48,
|
||||
APPLICATION_SOAP_FASTINFOSET = 49,
|
||||
APPLICATION_JSON = 50,
|
||||
APPLICATION_X_OBIX_BINARY = 51
|
||||
} coap_content_type_t;
|
||||
|
||||
/* Parsed message struct */
|
||||
typedef struct {
|
||||
uint8_t *buffer; /* pointer to CoAP header / incoming packet buffer / memory to serialize packet */
|
||||
|
||||
uint8_t version;
|
||||
coap_message_type_t type;
|
||||
uint8_t option_count;
|
||||
uint8_t code;
|
||||
uint16_t mid;
|
||||
|
||||
uint8_t options[COAP_OPTION_PROXY_URI / OPTION_MAP_SIZE + 1]; /* Bitmap to check if option is set */
|
||||
|
||||
coap_content_type_t content_type; /* Parse options once and store; allows setting options in random order */
|
||||
uint32_t max_age;
|
||||
size_t proxy_uri_len;
|
||||
const char *proxy_uri;
|
||||
uint8_t etag_len;
|
||||
uint8_t etag[COAP_ETAG_LEN];
|
||||
size_t uri_host_len;
|
||||
const char *uri_host;
|
||||
size_t location_path_len;
|
||||
const char *location_path;
|
||||
uint16_t uri_port;
|
||||
size_t location_query_len;
|
||||
const char *location_query;
|
||||
size_t uri_path_len;
|
||||
const char *uri_path;
|
||||
uint16_t observe;
|
||||
uint8_t token_len;
|
||||
uint8_t token[COAP_TOKEN_LEN];
|
||||
uint8_t accept_num;
|
||||
uint16_t accept[COAP_MAX_ACCEPT_NUM];
|
||||
uint8_t if_match_len;
|
||||
uint8_t if_match[COAP_ETAG_LEN];
|
||||
uint32_t block2_num;
|
||||
uint8_t block2_more;
|
||||
uint16_t block2_size;
|
||||
uint32_t block2_offset;
|
||||
uint32_t block1_num;
|
||||
uint8_t block1_more;
|
||||
uint16_t block1_size;
|
||||
uint32_t block1_offset;
|
||||
uint32_t size;
|
||||
size_t uri_query_len;
|
||||
const char *uri_query;
|
||||
uint8_t if_none_match;
|
||||
|
||||
uint16_t payload_len;
|
||||
uint8_t *payload;
|
||||
|
||||
} coap_packet_t;
|
||||
|
||||
/* Option format serialization*/
|
||||
#define COAP_SERIALIZE_INT_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
PRINTF(text" [%u]\n", coap_pkt->field); \
|
||||
option += coap_serialize_int_option(number, current_number, option, coap_pkt->field); \
|
||||
coap_pkt->option_count += 1; \
|
||||
current_number = number; \
|
||||
}
|
||||
#define COAP_SERIALIZE_BYTE_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
PRINTF(text" %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", coap_pkt->field##_len, \
|
||||
coap_pkt->field[0], \
|
||||
coap_pkt->field[1], \
|
||||
coap_pkt->field[2], \
|
||||
coap_pkt->field[3], \
|
||||
coap_pkt->field[4], \
|
||||
coap_pkt->field[5], \
|
||||
coap_pkt->field[6], \
|
||||
coap_pkt->field[7] \
|
||||
); /*FIXME always prints 8 bytes */ \
|
||||
uint8_t split_options = '\0'; \
|
||||
option += coap_serialize_array_option(number, current_number, option, coap_pkt->field, coap_pkt->field##_len, &split_options); \
|
||||
coap_pkt->option_count += split_options; \
|
||||
current_number = number; \
|
||||
}
|
||||
#define COAP_SERIALIZE_STRING_OPTION(number, field, splitter, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
PRINTF(text" [%.*s]\n", coap_pkt->field##_len, coap_pkt->field); \
|
||||
uint8_t split_options = splitter; \
|
||||
option += coap_serialize_array_option(number, current_number, option, (uint8_t *) coap_pkt->field, coap_pkt->field##_len, &split_options); \
|
||||
coap_pkt->option_count += split_options; \
|
||||
current_number = number; \
|
||||
}
|
||||
#define COAP_SERIALIZE_ACCEPT_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
int i; \
|
||||
for (i=0; i<coap_pkt->field##_num; ++i) \
|
||||
{ \
|
||||
PRINTF(text" [%u]\n", coap_pkt->field[i]); \
|
||||
option += coap_serialize_int_option(number, current_number, option, coap_pkt->field[i]); \
|
||||
coap_pkt->option_count += 1; \
|
||||
current_number = number; \
|
||||
} \
|
||||
}
|
||||
#define COAP_SERIALIZE_BLOCK_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) \
|
||||
{ \
|
||||
PRINTF(text" [%lu%s (%u B/blk)]\n", coap_pkt->field##_num, coap_pkt->field##_more ? "+" : "", coap_pkt->field##_size); \
|
||||
uint32_t block = coap_pkt->field##_num << 4; \
|
||||
if (coap_pkt->field##_more) block |= 0x8; \
|
||||
block |= 0xF & coap_log_2(coap_pkt->field##_size/16); \
|
||||
PRINTF(text" encoded: 0x%lX\n", block); \
|
||||
option += coap_serialize_int_option(number, current_number, option, block); \
|
||||
coap_pkt->option_count += 1; \
|
||||
current_number = number; \
|
||||
}
|
||||
|
||||
/* To store error code and human-readable payload */
|
||||
extern coap_status_t coap_error_code;
|
||||
extern char *coap_error_message;
|
||||
|
||||
void coap_init_connection(uint16_t port);
|
||||
uint16_t coap_get_mid(void);
|
||||
|
||||
void coap_init_message(void *packet, coap_message_type_t type, uint8_t code, uint16_t mid);
|
||||
size_t coap_serialize_message(void *packet, uint8_t *buffer);
|
||||
void coap_send_message(uip_ipaddr_t *addr, uint16_t port, uint8_t *data, uint16_t length);
|
||||
coap_status_t coap_parse_message(void *request, uint8_t *data, uint16_t data_len);
|
||||
|
||||
int coap_get_query_variable(void *packet, const char *name, const char **output);
|
||||
int coap_get_post_variable(void *packet, const char *name, const char **output);
|
||||
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
|
||||
int coap_set_status_code(void *packet, unsigned int code);
|
||||
|
||||
unsigned int coap_get_header_content_type(void *packet);
|
||||
int coap_set_header_content_type(void *packet, unsigned int content_type);
|
||||
|
||||
int coap_get_header_accept(void *packet, const uint16_t **accept);
|
||||
int coap_set_header_accept(void *packet, uint16_t accept);
|
||||
|
||||
int coap_get_header_max_age(void *packet, uint32_t *age);
|
||||
int coap_set_header_max_age(void *packet, uint32_t age);
|
||||
|
||||
int coap_get_header_etag(void *packet, const uint8_t **etag);
|
||||
int coap_set_header_etag(void *packet, const uint8_t *etag, size_t etag_len);
|
||||
|
||||
int coap_get_header_if_match(void *packet, const uint8_t **etag);
|
||||
int coap_set_header_if_match(void *packet, const uint8_t *etag, size_t etag_len);
|
||||
|
||||
int coap_get_header_if_none_match(void *packet);
|
||||
int coap_set_header_if_none_match(void *packet);
|
||||
|
||||
int coap_get_header_token(void *packet, const uint8_t **token);
|
||||
int coap_set_header_token(void *packet, const uint8_t *token, size_t token_len);
|
||||
|
||||
int coap_get_header_proxy_uri(void *packet, const char **uri); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_proxy_uri(void *packet, const char *uri);
|
||||
|
||||
int coap_get_header_uri_host(void *packet, const char **host); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_uri_host(void *packet, const char *host);
|
||||
|
||||
int coap_get_header_uri_path(void *packet, const char **path); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_uri_path(void *packet, const char *path);
|
||||
|
||||
int coap_get_header_uri_query(void *packet, const char **query); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_uri_query(void *packet, const char *query);
|
||||
|
||||
int coap_get_header_location_path(void *packet, const char **path); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_location_path(void *packet, const char *path); /* Also splits optional query into Location-Query option. */
|
||||
|
||||
int coap_get_header_location_query(void *packet, const char **query); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_location_query(void *packet, const char *query);
|
||||
|
||||
int coap_get_header_observe(void *packet, uint32_t *observe);
|
||||
int coap_set_header_observe(void *packet, uint32_t observe);
|
||||
|
||||
int coap_get_header_block2(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset);
|
||||
int coap_set_header_block2(void *packet, uint32_t num, uint8_t more, uint16_t size);
|
||||
|
||||
int coap_get_header_block1(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset);
|
||||
int coap_set_header_block1(void *packet, uint32_t num, uint8_t more, uint16_t size);
|
||||
|
||||
int coap_get_header_size(void *packet, uint32_t *size);
|
||||
int coap_set_header_size(void *packet, uint32_t size);
|
||||
|
||||
int coap_get_payload(void *packet, const uint8_t **payload);
|
||||
int coap_set_payload(void *packet, const void *payload, size_t length);
|
||||
|
||||
#endif /* COAP_12_H_ */
|
||||
1
apps/er-coap-13/Makefile.er-coap-13
Normal file
1
apps/er-coap-13/Makefile.er-coap-13
Normal file
|
|
@ -0,0 +1 @@
|
|||
er-coap-13_src = er-coap-13.c er-coap-13-engine.c er-coap-13-transactions.c er-coap-13-observing.c er-coap-13-separate.c
|
||||
669
apps/er-coap-13/er-coap-13-engine.c
Normal file
669
apps/er-coap-13/er-coap-13-engine.c
Normal file
|
|
@ -0,0 +1,669 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP implementation of the REST Engine
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include "contiki.h"
|
||||
#include "contiki-net.h"
|
||||
|
||||
#include "er-coap-13-engine.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF(" %02x:%02x:%02x:%02x:%02x:%02x ",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#define PRINTBITS(buf,len) { \
|
||||
int i,j=0; \
|
||||
for (i=0; i<len; ++i) { \
|
||||
for (j=7; j>=0; --j) { \
|
||||
PRINTF("%c", (((char *)buf)[i] & 1<<j) ? '1' : '0'); \
|
||||
} \
|
||||
PRINTF(" "); \
|
||||
} \
|
||||
}
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#define PRINTBITS(buf,len)
|
||||
#endif
|
||||
|
||||
PROCESS(coap_receiver, "CoAP Receiver");
|
||||
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*- Variables ----------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
static service_callback_t service_cbk = NULL;
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
static
|
||||
int
|
||||
coap_receive(void)
|
||||
{
|
||||
coap_error_code = NO_ERROR;
|
||||
|
||||
PRINTF("handle_incoming_data(): received uip_datalen=%u \n",(uint16_t)uip_datalen());
|
||||
|
||||
/* Static declaration reduces stack peaks and program code size. */
|
||||
static coap_packet_t message[1]; /* This way the packet can be treated as pointer as usual. */
|
||||
static coap_packet_t response[1];
|
||||
static coap_transaction_t *transaction = NULL;
|
||||
|
||||
if (uip_newdata()) {
|
||||
|
||||
PRINTF("receiving UDP datagram from: ");
|
||||
PRINT6ADDR(&UIP_IP_BUF->srcipaddr);
|
||||
PRINTF(":%u\n Length: %u\n Data: ", uip_ntohs(UIP_UDP_BUF->srcport), uip_datalen() );
|
||||
PRINTBITS(uip_appdata, uip_datalen());
|
||||
PRINTF("\n");
|
||||
|
||||
coap_error_code = coap_parse_message(message, uip_appdata, uip_datalen());
|
||||
|
||||
if (coap_error_code==NO_ERROR)
|
||||
{
|
||||
|
||||
/*TODO duplicates suppression, if required by application */
|
||||
|
||||
PRINTF(" Parsed: v %u, t %u, tkl %u, c %u, mid %u\n", message->version, message->type, message->token_len, message->code, message->mid);
|
||||
PRINTF(" URL: %.*s\n", message->uri_path_len, message->uri_path);
|
||||
PRINTF(" Payload: %.*s\n", message->payload_len, message->payload);
|
||||
|
||||
/* Handle requests. */
|
||||
if (message->code >= COAP_GET && message->code <= COAP_DELETE)
|
||||
{
|
||||
/* Use transaction buffer for response to confirmable request. */
|
||||
if ( (transaction = coap_new_transaction(message->mid, &UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport)) )
|
||||
{
|
||||
uint32_t block_num = 0;
|
||||
uint16_t block_size = REST_MAX_CHUNK_SIZE;
|
||||
uint32_t block_offset = 0;
|
||||
int32_t new_offset = 0;
|
||||
|
||||
/* prepare response */
|
||||
if (message->type==COAP_TYPE_CON)
|
||||
{
|
||||
/* Reliable CON requests are answered with an ACK. */
|
||||
coap_init_message(response, COAP_TYPE_ACK, CONTENT_2_05, message->mid);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Unreliable NON requests are answered with a NON as well. */
|
||||
coap_init_message(response, COAP_TYPE_NON, CONTENT_2_05, coap_get_mid());
|
||||
}
|
||||
|
||||
/* mirror token */
|
||||
if (message->token_len)
|
||||
{
|
||||
coap_set_header_token(response, message->token, message->token_len);
|
||||
}
|
||||
|
||||
/* get offset for blockwise transfers */
|
||||
if (coap_get_header_block2(message, &block_num, NULL, &block_size, &block_offset))
|
||||
{
|
||||
PRINTF("Blockwise: block request %lu (%u/%u) @ %lu bytes\n", block_num, block_size, REST_MAX_CHUNK_SIZE, block_offset);
|
||||
block_size = MIN(block_size, REST_MAX_CHUNK_SIZE);
|
||||
new_offset = block_offset;
|
||||
}
|
||||
|
||||
/* Invoke resource handler. */
|
||||
if (service_cbk)
|
||||
{
|
||||
/* Call REST framework and check if found and allowed. */
|
||||
if (service_cbk(message, response, transaction->packet+COAP_MAX_HEADER_SIZE, block_size, &new_offset))
|
||||
{
|
||||
if (coap_error_code==NO_ERROR)
|
||||
{
|
||||
/* Apply blockwise transfers. */
|
||||
if ( IS_OPTION(message, COAP_OPTION_BLOCK1) && response->code<BAD_REQUEST_4_00 && !IS_OPTION(response, COAP_OPTION_BLOCK1) )
|
||||
{
|
||||
PRINTF("Block1 NOT IMPLEMENTED\n");
|
||||
|
||||
coap_error_code = NOT_IMPLEMENTED_5_01;
|
||||
coap_error_message = "NoBlock1Support";
|
||||
}
|
||||
else if ( IS_OPTION(message, COAP_OPTION_BLOCK2) )
|
||||
{
|
||||
/* unchanged new_offset indicates that resource is unaware of blockwise transfer */
|
||||
if (new_offset==block_offset)
|
||||
{
|
||||
PRINTF("Blockwise: unaware resource with payload length %u/%u\n", response->payload_len, block_size);
|
||||
if (block_offset >= response->payload_len)
|
||||
{
|
||||
PRINTF("handle_incoming_data(): block_offset >= response->payload_len\n");
|
||||
|
||||
response->code = BAD_OPTION_4_02;
|
||||
coap_set_payload(response, "BlockOutOfScope", 15); /* a const char str[] and sizeof(str) produces larger code size */
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_set_header_block2(response, block_num, response->payload_len - block_offset > block_size, block_size);
|
||||
coap_set_payload(response, response->payload+block_offset, MIN(response->payload_len - block_offset, block_size));
|
||||
} /* if (valid offset) */
|
||||
}
|
||||
else
|
||||
{
|
||||
/* resource provides chunk-wise data */
|
||||
PRINTF("Blockwise: blockwise resource, new offset %ld\n", new_offset);
|
||||
coap_set_header_block2(response, block_num, new_offset!=-1 || response->payload_len > block_size, block_size);
|
||||
if (response->payload_len > block_size) coap_set_payload(response, response->payload, block_size);
|
||||
} /* if (resource aware of blockwise) */
|
||||
}
|
||||
else if (new_offset!=0)
|
||||
{
|
||||
PRINTF("Blockwise: no block option for blockwise resource, using block size %u\n", REST_MAX_CHUNK_SIZE);
|
||||
|
||||
coap_set_header_block2(response, 0, new_offset!=-1, REST_MAX_CHUNK_SIZE);
|
||||
coap_set_payload(response, response->payload, MIN(response->payload_len, REST_MAX_CHUNK_SIZE));
|
||||
} /* if (blockwise request) */
|
||||
} /* no errors/hooks */
|
||||
} /* successful service callback */
|
||||
|
||||
/* Serialize response. */
|
||||
if (coap_error_code==NO_ERROR)
|
||||
{
|
||||
if ((transaction->packet_len = coap_serialize_message(response, transaction->packet))==0)
|
||||
{
|
||||
coap_error_code = PACKET_SERIALIZATION_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_error_code = NOT_IMPLEMENTED_5_01;
|
||||
coap_error_message = "NoServiceCallbck"; // no a to fit 16 bytes
|
||||
} /* if (service callback) */
|
||||
|
||||
} else {
|
||||
coap_error_code = SERVICE_UNAVAILABLE_5_03;
|
||||
coap_error_message = "NoFreeTraBuffer";
|
||||
} /* if (transaction buffer) */
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Responses */
|
||||
|
||||
if (message->type==COAP_TYPE_ACK)
|
||||
{
|
||||
PRINTF("Received ACK\n");
|
||||
}
|
||||
else if (message->type==COAP_TYPE_RST)
|
||||
{
|
||||
PRINTF("Received RST\n");
|
||||
/* Cancel possible subscriptions. */
|
||||
coap_remove_observer_by_mid(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, message->mid);
|
||||
}
|
||||
|
||||
if ( (transaction = coap_get_transaction_by_mid(message->mid)) )
|
||||
{
|
||||
/* Free transaction memory before callback, as it may create a new transaction. */
|
||||
restful_response_handler callback = transaction->callback;
|
||||
void *callback_data = transaction->callback_data;
|
||||
coap_clear_transaction(transaction);
|
||||
|
||||
/* Check if someone registered for the response */
|
||||
if (callback) {
|
||||
callback(callback_data, message);
|
||||
}
|
||||
} /* if (ACKed transaction) */
|
||||
transaction = NULL;
|
||||
|
||||
} /* Request or Response */
|
||||
|
||||
} /* if (parsed correctly) */
|
||||
|
||||
if (coap_error_code==NO_ERROR)
|
||||
{
|
||||
if (transaction) coap_send_transaction(transaction);
|
||||
}
|
||||
else if (coap_error_code==MANUAL_RESPONSE)
|
||||
{
|
||||
PRINTF("Clearing transaction for manual response");
|
||||
coap_clear_transaction(transaction);
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("ERROR %u: %s\n", coap_error_code, coap_error_message);
|
||||
coap_clear_transaction(transaction);
|
||||
|
||||
/* Set to sendable error code. */
|
||||
if (coap_error_code >= 192)
|
||||
{
|
||||
coap_error_code = INTERNAL_SERVER_ERROR_5_00;
|
||||
}
|
||||
/* Reuse input buffer for error message. */
|
||||
coap_init_message(message, COAP_TYPE_ACK, coap_error_code, message->mid);
|
||||
coap_set_payload(message, coap_error_message, strlen(coap_error_message));
|
||||
coap_send_message(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, uip_appdata, coap_serialize_message(message, uip_appdata));
|
||||
}
|
||||
} /* if (new data) */
|
||||
|
||||
return coap_error_code;
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_receiver_init()
|
||||
{
|
||||
process_start(&coap_receiver, NULL);
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_set_service_callback(service_callback_t callback)
|
||||
{
|
||||
service_cbk = callback;
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
rest_resource_flags_t
|
||||
coap_get_rest_method(void *packet)
|
||||
{
|
||||
return (rest_resource_flags_t)(1 << (((coap_packet_t *)packet)->code - 1));
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*- Server part --------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
|
||||
/* The discover resource is automatically included for CoAP. */
|
||||
RESOURCE(well_known_core, METHOD_GET, ".well-known/core", "ct=40");
|
||||
void
|
||||
well_known_core_handler(void* request, void* response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
|
||||
{
|
||||
size_t strpos = 0; /* position in overall string (which is larger than the buffer) */
|
||||
size_t bufpos = 0; /* position within buffer (bytes written) */
|
||||
size_t tmplen = 0;
|
||||
resource_t* resource = NULL;
|
||||
|
||||
#if COAP_LINK_FORMAT_FILTERING
|
||||
/* For filtering. */
|
||||
const char *filter = NULL;
|
||||
const char *attrib = NULL;
|
||||
const char *found = NULL;
|
||||
const char *end = NULL;
|
||||
char *value = NULL;
|
||||
char lastchar = '\0';
|
||||
int len = coap_get_header_uri_query(request, &filter);
|
||||
|
||||
if (len)
|
||||
{
|
||||
value = strchr(filter, '=');
|
||||
value[0] = '\0';
|
||||
++value;
|
||||
len -= strlen(filter)+1;
|
||||
|
||||
PRINTF("Filter %s = %.*s\n", filter, len, value);
|
||||
|
||||
if (strcmp(filter,"href")==0 && value[0]=='/')
|
||||
{
|
||||
++value;
|
||||
--len;
|
||||
}
|
||||
|
||||
lastchar = value[len-1];
|
||||
value[len-1] = '\0';
|
||||
}
|
||||
#endif
|
||||
|
||||
for (resource = (resource_t*)list_head(rest_get_resources()); resource; resource = resource->next)
|
||||
{
|
||||
#if COAP_LINK_FORMAT_FILTERING
|
||||
/* Filtering */
|
||||
if (len)
|
||||
{
|
||||
if (strcmp(filter,"href")==0)
|
||||
{
|
||||
attrib=strstr(resource->url, value);
|
||||
if (attrib==NULL || (value[-1]=='/' && attrib!=resource->url)) continue;
|
||||
end = attrib + strlen(attrib);
|
||||
}
|
||||
else
|
||||
{
|
||||
attrib=strstr(resource->attributes, filter);
|
||||
if (attrib==NULL || (attrib[strlen(filter)]!='=' && attrib[strlen(filter)]!='"')) continue;
|
||||
attrib += strlen(filter)+2;
|
||||
end = strchr(attrib, '"');
|
||||
}
|
||||
|
||||
PRINTF("Filter: res has attrib %s (%s)\n", attrib, value);
|
||||
found = attrib;
|
||||
while ((found=strstr(found, value))!=NULL) {
|
||||
if (found > end)
|
||||
{
|
||||
found = NULL;
|
||||
break;
|
||||
}
|
||||
if (lastchar==found[len-1] || lastchar=='*')
|
||||
{
|
||||
break;
|
||||
}
|
||||
++found;
|
||||
}
|
||||
if (found==NULL)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
PRINTF("Filter: res has prefix %s\n", found);
|
||||
if (lastchar!='*' && (found[len]!='"' && found[len]!=' ' && found[len]!='\0')) continue;
|
||||
PRINTF("Filter: res has match\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
PRINTF("res: /%s (%p)\npos: s%d, o%ld, b%d\n", resource->url, resource, strpos, *offset, bufpos);
|
||||
|
||||
if (strpos>0)
|
||||
{
|
||||
if (strpos >= *offset && bufpos < preferred_size)
|
||||
{
|
||||
buffer[bufpos++] = ',';
|
||||
}
|
||||
++strpos;
|
||||
}
|
||||
|
||||
if (strpos >= *offset && bufpos < preferred_size)
|
||||
{
|
||||
buffer[bufpos++] = '<';
|
||||
}
|
||||
++strpos;
|
||||
|
||||
if (strpos >= *offset && bufpos < preferred_size)
|
||||
{
|
||||
buffer[bufpos++] = '/';
|
||||
}
|
||||
++strpos;
|
||||
|
||||
tmplen = strlen(resource->url);
|
||||
if (strpos+tmplen > *offset)
|
||||
{
|
||||
bufpos += snprintf((char *) buffer + bufpos, preferred_size - bufpos + 1,
|
||||
"%s", resource->url + ((*offset-(int32_t)strpos > 0) ? (*offset-(int32_t)strpos) : 0));
|
||||
/* minimal-net requires these casts */
|
||||
if (bufpos >= preferred_size)
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
strpos += tmplen;
|
||||
|
||||
if (strpos >= *offset && bufpos < preferred_size)
|
||||
{
|
||||
buffer[bufpos++] = '>';
|
||||
}
|
||||
++strpos;
|
||||
|
||||
if (resource->attributes[0])
|
||||
{
|
||||
if (strpos >= *offset && bufpos < preferred_size)
|
||||
{
|
||||
buffer[bufpos++] = ';';
|
||||
}
|
||||
++strpos;
|
||||
|
||||
tmplen = strlen(resource->attributes);
|
||||
if (strpos+tmplen > *offset)
|
||||
{
|
||||
bufpos += snprintf((char *) buffer + bufpos, preferred_size - bufpos + 1,
|
||||
"%s", resource->attributes + (*offset-(int32_t)strpos > 0 ? *offset-(int32_t)strpos : 0));
|
||||
if (bufpos >= preferred_size)
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
strpos += tmplen;
|
||||
}
|
||||
|
||||
/* buffer full, but resource not completed yet; or: do not break if resource exactly fills buffer. */
|
||||
if (bufpos >= preferred_size && strpos-bufpos > *offset)
|
||||
{
|
||||
PRINTF("res: BREAK at %s (%p)\n", resource->url, resource);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (bufpos>0) {
|
||||
PRINTF("BUF %d: %.*s\n", bufpos, bufpos, (char *) buffer);
|
||||
|
||||
coap_set_payload(response, buffer, bufpos );
|
||||
coap_set_header_content_type(response, APPLICATION_LINK_FORMAT);
|
||||
}
|
||||
else if (strpos>0)
|
||||
{
|
||||
PRINTF("well_known_core_handler(): bufpos<=0\n");
|
||||
|
||||
coap_set_status_code(response, BAD_OPTION_4_02);
|
||||
coap_set_payload(response, "BlockOutOfScope", 15);
|
||||
}
|
||||
|
||||
if (resource==NULL) {
|
||||
PRINTF("res: DONE\n");
|
||||
*offset = -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("res: MORE at %s (%p)\n", resource->url, resource);
|
||||
*offset += preferred_size;
|
||||
}
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
PROCESS_THREAD(coap_receiver, ev, data)
|
||||
{
|
||||
PROCESS_BEGIN();
|
||||
PRINTF("Starting CoAP-13 receiver...\n");
|
||||
|
||||
rest_activate_resource(&resource_well_known_core);
|
||||
|
||||
coap_register_as_transaction_handler();
|
||||
coap_init_connection(SERVER_LISTEN_PORT);
|
||||
|
||||
while(1) {
|
||||
PROCESS_YIELD();
|
||||
|
||||
if(ev == tcpip_event) {
|
||||
coap_receive();
|
||||
} else if (ev == PROCESS_EVENT_TIMER) {
|
||||
/* retransmissions are handled here */
|
||||
coap_check_transactions();
|
||||
}
|
||||
} /* while (1) */
|
||||
|
||||
PROCESS_END();
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*- Client part --------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void coap_blocking_request_callback(void *callback_data, void *response) {
|
||||
struct request_state_t *state = (struct request_state_t *) callback_data;
|
||||
state->response = (coap_packet_t*) response;
|
||||
process_poll(state->process);
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
PT_THREAD(coap_blocking_request(struct request_state_t *state, process_event_t ev,
|
||||
uip_ipaddr_t *remote_ipaddr, uint16_t remote_port,
|
||||
coap_packet_t *request,
|
||||
blocking_response_handler request_callback)) {
|
||||
PT_BEGIN(&state->pt);
|
||||
|
||||
static uint8_t more;
|
||||
static uint32_t res_block;
|
||||
static uint8_t block_error;
|
||||
|
||||
state->block_num = 0;
|
||||
state->response = NULL;
|
||||
state->process = PROCESS_CURRENT();
|
||||
|
||||
more = 0;
|
||||
res_block = 0;
|
||||
block_error = 0;
|
||||
|
||||
do {
|
||||
request->mid = coap_get_mid();
|
||||
if ((state->transaction = coap_new_transaction(request->mid, remote_ipaddr, remote_port)))
|
||||
{
|
||||
state->transaction->callback = coap_blocking_request_callback;
|
||||
state->transaction->callback_data = state;
|
||||
|
||||
if (state->block_num>0)
|
||||
{
|
||||
coap_set_header_block2(request, state->block_num, 0, REST_MAX_CHUNK_SIZE);
|
||||
}
|
||||
|
||||
state->transaction->packet_len = coap_serialize_message(request, state->transaction->packet);
|
||||
|
||||
coap_send_transaction(state->transaction);
|
||||
PRINTF("Requested #%lu (MID %u)\n", state->block_num, request->mid);
|
||||
|
||||
PT_YIELD_UNTIL(&state->pt, ev == PROCESS_EVENT_POLL);
|
||||
|
||||
if (!state->response)
|
||||
{
|
||||
PRINTF("Server not responding\n");
|
||||
PT_EXIT(&state->pt);
|
||||
}
|
||||
|
||||
coap_get_header_block2(state->response, &res_block, &more, NULL, NULL);
|
||||
|
||||
PRINTF("Received #%lu%s (%u bytes)\n", res_block, more ? "+" : "", state->response->payload_len);
|
||||
|
||||
if (res_block==state->block_num)
|
||||
{
|
||||
request_callback(state->response);
|
||||
++(state->block_num);
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("WRONG BLOCK %lu/%lu\n", res_block, state->block_num);
|
||||
++block_error;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("Could not allocate transaction buffer");
|
||||
PT_EXIT(&state->pt);
|
||||
}
|
||||
} while (more && block_error<COAP_MAX_ATTEMPTS);
|
||||
|
||||
PT_END(&state->pt);
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/*- Engine Interface ---------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------*/
|
||||
const struct rest_implementation coap_rest_implementation = {
|
||||
"CoAP-13",
|
||||
|
||||
coap_receiver_init,
|
||||
coap_set_service_callback,
|
||||
|
||||
coap_get_header_uri_path,
|
||||
coap_set_header_uri_path,
|
||||
coap_get_rest_method,
|
||||
coap_set_status_code,
|
||||
|
||||
coap_get_header_content_type,
|
||||
coap_set_header_content_type,
|
||||
coap_get_header_accept,
|
||||
coap_get_header_size,
|
||||
coap_set_header_size,
|
||||
coap_get_header_max_age,
|
||||
coap_set_header_max_age,
|
||||
coap_set_header_etag,
|
||||
coap_get_header_if_match,
|
||||
coap_get_header_if_none_match,
|
||||
coap_get_header_uri_host,
|
||||
coap_set_header_location_path,
|
||||
|
||||
coap_get_payload,
|
||||
coap_set_payload,
|
||||
|
||||
coap_get_header_uri_query,
|
||||
coap_get_query_variable,
|
||||
coap_get_post_variable,
|
||||
|
||||
coap_notify_observers,
|
||||
(restful_post_handler) coap_observe_handler,
|
||||
|
||||
NULL, /* default pre-handler (set separate handler after activation if needed) */
|
||||
NULL, /* default post-handler for non-observable resources */
|
||||
|
||||
{
|
||||
CONTENT_2_05,
|
||||
CREATED_2_01,
|
||||
CHANGED_2_04,
|
||||
DELETED_2_02,
|
||||
VALID_2_03,
|
||||
BAD_REQUEST_4_00,
|
||||
UNAUTHORIZED_4_01,
|
||||
BAD_OPTION_4_02,
|
||||
FORBIDDEN_4_03,
|
||||
NOT_FOUND_4_04,
|
||||
METHOD_NOT_ALLOWED_4_05,
|
||||
NOT_ACCEPTABLE_4_06,
|
||||
REQUEST_ENTITY_TOO_LARGE_4_13,
|
||||
UNSUPPORTED_MEDIA_TYPE_4_15,
|
||||
INTERNAL_SERVER_ERROR_5_00,
|
||||
NOT_IMPLEMENTED_5_01,
|
||||
BAD_GATEWAY_5_02,
|
||||
SERVICE_UNAVAILABLE_5_03,
|
||||
GATEWAY_TIMEOUT_5_04,
|
||||
PROXYING_NOT_SUPPORTED_5_05
|
||||
},
|
||||
|
||||
{
|
||||
TEXT_PLAIN,
|
||||
TEXT_XML,
|
||||
TEXT_CSV,
|
||||
TEXT_HTML,
|
||||
IMAGE_GIF,
|
||||
IMAGE_JPEG,
|
||||
IMAGE_PNG,
|
||||
IMAGE_TIFF,
|
||||
AUDIO_RAW,
|
||||
VIDEO_RAW,
|
||||
APPLICATION_LINK_FORMAT,
|
||||
APPLICATION_XML,
|
||||
APPLICATION_OCTET_STREAM,
|
||||
APPLICATION_RDF_XML,
|
||||
APPLICATION_SOAP_XML,
|
||||
APPLICATION_ATOM_XML,
|
||||
APPLICATION_XMPP_XML,
|
||||
APPLICATION_EXI,
|
||||
APPLICATION_FASTINFOSET,
|
||||
APPLICATION_SOAP_FASTINFOSET,
|
||||
APPLICATION_JSON,
|
||||
APPLICATION_X_OBIX_BINARY
|
||||
}
|
||||
};
|
||||
94
apps/er-coap-13/er-coap-13-engine.h
Normal file
94
apps/er-coap-13/er-coap-13-engine.h
Normal file
|
|
@ -0,0 +1,94 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP implementation of the REST Engine
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_SERVER_H_
|
||||
#define COAP_SERVER_H_
|
||||
|
||||
#if !defined(REST)
|
||||
#error "Define REST to \"coap_rest_implementation\""
|
||||
#endif
|
||||
|
||||
#include "er-coap-13.h"
|
||||
#include "er-coap-13-transactions.h"
|
||||
#include "er-coap-13-observing.h"
|
||||
#include "er-coap-13-separate.h"
|
||||
|
||||
#include "pt.h"
|
||||
|
||||
/* Declare server process */
|
||||
PROCESS_NAME(coap_receiver);
|
||||
|
||||
#define SERVER_LISTEN_PORT UIP_HTONS(COAP_SERVER_PORT)
|
||||
|
||||
typedef coap_packet_t rest_request_t;
|
||||
typedef coap_packet_t rest_response_t;
|
||||
|
||||
extern const struct rest_implementation coap_rest_implementation;
|
||||
|
||||
void coap_receiver_init(void);
|
||||
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
/*- Client part ---------------------------------------------------------------------*/
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
struct request_state_t {
|
||||
struct pt pt;
|
||||
struct process *process;
|
||||
coap_transaction_t *transaction;
|
||||
coap_packet_t *response;
|
||||
uint32_t block_num;
|
||||
};
|
||||
|
||||
typedef void (*blocking_response_handler) (void* response);
|
||||
|
||||
PT_THREAD(coap_blocking_request(struct request_state_t *state, process_event_t ev,
|
||||
uip_ipaddr_t *remote_ipaddr, uint16_t remote_port,
|
||||
coap_packet_t *request,
|
||||
blocking_response_handler request_callback));
|
||||
|
||||
#define COAP_BLOCKING_REQUEST(server_addr, server_port, request, chunk_handler) \
|
||||
{ \
|
||||
static struct request_state_t request_state; \
|
||||
PT_SPAWN(process_pt, &request_state.pt, \
|
||||
coap_blocking_request(&request_state, ev, \
|
||||
server_addr, server_port, \
|
||||
request, chunk_handler) \
|
||||
); \
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
|
||||
#endif /* COAP_SERVER_H_ */
|
||||
255
apps/er-coap-13/er-coap-13-observing.c
Normal file
255
apps/er-coap-13/er-coap-13-observing.c
Normal file
|
|
@ -0,0 +1,255 @@
|
|||
/*
|
||||
* Copyright (c) 2011, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for observing resources
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "er-coap-13-observing.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
|
||||
MEMB(observers_memb, coap_observer_t, COAP_MAX_OBSERVERS);
|
||||
LIST(observers_list);
|
||||
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
coap_observer_t *
|
||||
coap_add_observer(uip_ipaddr_t *addr, uint16_t port, const uint8_t *token, size_t token_len, const char *url)
|
||||
{
|
||||
/* Remove existing observe relationship, if any. */
|
||||
coap_remove_observer_by_url(addr, port, url);
|
||||
|
||||
coap_observer_t *o = memb_alloc(&observers_memb);
|
||||
|
||||
if (o)
|
||||
{
|
||||
o->url = url;
|
||||
uip_ipaddr_copy(&o->addr, addr);
|
||||
o->port = port;
|
||||
o->token_len = token_len;
|
||||
memcpy(o->token, token, token_len);
|
||||
o->last_mid = 0;
|
||||
|
||||
stimer_set(&o->refresh_timer, COAP_OBSERVING_REFRESH_INTERVAL);
|
||||
|
||||
PRINTF("Adding observer for /%s [0x%02X%02X]\n", o->url, o->token[0], o->token[1]);
|
||||
list_add(observers_list, o);
|
||||
}
|
||||
|
||||
return o;
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_remove_observer(coap_observer_t *o)
|
||||
{
|
||||
PRINTF("Removing observer for /%s [0x%02X%02X]\n", o->url, o->token[0], o->token[1]);
|
||||
|
||||
memb_free(&observers_memb, o);
|
||||
list_remove(observers_list, o);
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_client(uip_ipaddr_t *addr, uint16_t port)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check client ");
|
||||
PRINT6ADDR(addr);
|
||||
PRINTF(":%u\n", port);
|
||||
if (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port)
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_token(uip_ipaddr_t *addr, uint16_t port, uint8_t *token, size_t token_len)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check Token 0x%02X%02X\n", token[0], token[1]);
|
||||
if (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port && obs->token_len==token_len && memcmp(obs->token, token, token_len)==0)
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_url(uip_ipaddr_t *addr, uint16_t port, const char *url)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check URL %p\n", url);
|
||||
if ((addr==NULL || (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port)) && (obs->url==url || memcmp(obs->url, url, strlen(obs->url))==0))
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
|
||||
int
|
||||
coap_remove_observer_by_mid(uip_ipaddr_t *addr, uint16_t port, uint16_t mid)
|
||||
{
|
||||
int removed = 0;
|
||||
coap_observer_t* obs = NULL;
|
||||
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
PRINTF("Remove check MID %u\n", mid);
|
||||
if (uip_ipaddr_cmp(&obs->addr, addr) && obs->port==port && obs->last_mid==mid)
|
||||
{
|
||||
coap_remove_observer(obs);
|
||||
removed++;
|
||||
}
|
||||
}
|
||||
return removed;
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_notify_observers(resource_t *resource, int32_t obs_counter, void *notification)
|
||||
{
|
||||
coap_packet_t *const coap_res = (coap_packet_t *) notification;
|
||||
coap_observer_t* obs = NULL;
|
||||
uint8_t preferred_type = coap_res->type;
|
||||
|
||||
PRINTF("Observing: Notification from %s\n", resource->url);
|
||||
|
||||
/* Iterate over observers. */
|
||||
for (obs = (coap_observer_t*)list_head(observers_list); obs; obs = obs->next)
|
||||
{
|
||||
if (obs->url==resource->url) /* using RESOURCE url pointer as handle */
|
||||
{
|
||||
coap_transaction_t *transaction = NULL;
|
||||
|
||||
/*TODO implement special transaction for CON, sharing the same buffer to allow for more observers. */
|
||||
|
||||
if ( (transaction = coap_new_transaction(coap_get_mid(), &obs->addr, obs->port)) )
|
||||
{
|
||||
PRINTF(" Observer ");
|
||||
PRINT6ADDR(&obs->addr);
|
||||
PRINTF(":%u\n", obs->port);
|
||||
|
||||
/* Update last MID for RST matching. */
|
||||
obs->last_mid = transaction->mid;
|
||||
|
||||
/* Prepare response */
|
||||
coap_res->mid = transaction->mid;
|
||||
if (obs_counter>=0) coap_set_header_observe(coap_res, obs_counter);
|
||||
coap_set_header_token(coap_res, obs->token, obs->token_len);
|
||||
|
||||
/* Use CON to check whether client is still there/interested after COAP_OBSERVING_REFRESH_INTERVAL. */
|
||||
if (stimer_expired(&obs->refresh_timer))
|
||||
{
|
||||
PRINTF(" Refreshing with CON\n");
|
||||
coap_res->type = COAP_TYPE_CON;
|
||||
stimer_restart(&obs->refresh_timer);
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_res->type = preferred_type;
|
||||
}
|
||||
|
||||
transaction->packet_len = coap_serialize_message(coap_res, transaction->packet);
|
||||
|
||||
coap_send_transaction(transaction);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_observe_handler(resource_t *resource, void *request, void *response)
|
||||
{
|
||||
coap_packet_t *const coap_req = (coap_packet_t *) request;
|
||||
coap_packet_t *const coap_res = (coap_packet_t *) response;
|
||||
|
||||
static char content[16];
|
||||
|
||||
if (coap_req->code==COAP_GET && coap_res->code<128) /* GET request and response without error code */
|
||||
{
|
||||
if (IS_OPTION(coap_req, COAP_OPTION_OBSERVE))
|
||||
{
|
||||
|
||||
if (coap_add_observer(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, coap_req->token, coap_req->token_len, resource->url))
|
||||
{
|
||||
coap_set_header_observe(coap_res, 0);
|
||||
/*
|
||||
* For demonstration purposes only. A subscription should return the same representation as a normal GET.
|
||||
* TODO: Comment the following line for any real application.
|
||||
*/
|
||||
coap_set_payload(coap_res, content, snprintf(content, sizeof(content), "Added %u/%u", list_length(observers_list), COAP_MAX_OBSERVERS));
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_res->code = SERVICE_UNAVAILABLE_5_03;
|
||||
coap_set_payload(coap_res, "TooManyObservers", 16);
|
||||
} /* if (added observer) */
|
||||
}
|
||||
else /* if (observe) */
|
||||
{
|
||||
/* Remove client if it is currently observing. */
|
||||
coap_remove_observer_by_url(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, resource->url);
|
||||
} /* if (observe) */
|
||||
}
|
||||
}
|
||||
82
apps/er-coap-13/er-coap-13-observing.h
Normal file
82
apps/er-coap-13/er-coap-13-observing.h
Normal file
|
|
@ -0,0 +1,82 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for observing resources
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_OBSERVING_H_
|
||||
#define COAP_OBSERVING_H_
|
||||
|
||||
#include "er-coap-13.h"
|
||||
#include "er-coap-13-transactions.h"
|
||||
|
||||
#ifndef COAP_MAX_OBSERVERS
|
||||
#define COAP_MAX_OBSERVERS COAP_MAX_OPEN_TRANSACTIONS-1
|
||||
#endif /* COAP_MAX_OBSERVERS */
|
||||
|
||||
/* Interval in seconds in which NON notifies are changed to CON notifies to check client. */
|
||||
#define COAP_OBSERVING_REFRESH_INTERVAL 60
|
||||
|
||||
#if COAP_MAX_OPEN_TRANSACTIONS<COAP_MAX_OBSERVERS
|
||||
#warning "COAP_MAX_OPEN_TRANSACTIONS smaller than COAP_MAX_OBSERVERS: cannot handle CON notifications"
|
||||
#endif
|
||||
|
||||
typedef struct coap_observer {
|
||||
struct coap_observer *next; /* for LIST */
|
||||
|
||||
const char *url;
|
||||
uip_ipaddr_t addr;
|
||||
uint16_t port;
|
||||
uint8_t token_len;
|
||||
uint8_t token[COAP_TOKEN_LEN];
|
||||
uint16_t last_mid;
|
||||
struct stimer refresh_timer;
|
||||
} coap_observer_t;
|
||||
|
||||
list_t coap_get_observers(void);
|
||||
|
||||
coap_observer_t *coap_add_observer(uip_ipaddr_t *addr, uint16_t port, const uint8_t *token, size_t token_len, const char *url);
|
||||
|
||||
void coap_remove_observer(coap_observer_t *o);
|
||||
int coap_remove_observer_by_client(uip_ipaddr_t *addr, uint16_t port);
|
||||
int coap_remove_observer_by_token(uip_ipaddr_t *addr, uint16_t port, uint8_t *token, size_t token_len);
|
||||
int coap_remove_observer_by_url(uip_ipaddr_t *addr, uint16_t port, const char *url);
|
||||
int coap_remove_observer_by_mid(uip_ipaddr_t *addr, uint16_t port, uint16_t mid);
|
||||
|
||||
void coap_notify_observers(resource_t *resource, int32_t obs_counter, void *notification);
|
||||
|
||||
void coap_observe_handler(resource_t *resource, void *request, void *response);
|
||||
|
||||
#endif /* COAP_OBSERVING_H_ */
|
||||
117
apps/er-coap-13/er-coap-13-separate.c
Normal file
117
apps/er-coap-13/er-coap-13-separate.c
Normal file
|
|
@ -0,0 +1,117 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for separate responses
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "er-coap-13-separate.h"
|
||||
#include "er-coap-13-transactions.h"
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_separate_reject()
|
||||
{
|
||||
coap_error_code = SERVICE_UNAVAILABLE_5_03;
|
||||
coap_error_message = "AlreadyInUse";
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
int
|
||||
coap_separate_accept(void *request, coap_separate_t *separate_store)
|
||||
{
|
||||
coap_packet_t *const coap_req = (coap_packet_t *) request;
|
||||
coap_transaction_t *const t = coap_get_transaction_by_mid(coap_req->mid);
|
||||
|
||||
PRINTF("Separate ACCEPT: /%.*s MID %u\n", coap_req->uri_path_len, coap_req->uri_path, coap_req->mid);
|
||||
if (t)
|
||||
{
|
||||
/* Send separate ACK for CON. */
|
||||
if (coap_req->type==COAP_TYPE_CON)
|
||||
{
|
||||
coap_packet_t ack[1];
|
||||
/* ACK with empty code (0) */
|
||||
coap_init_message(ack, COAP_TYPE_ACK, 0, coap_req->mid);
|
||||
/* Serializing into IPBUF: Only overwrites header parts that are already parsed into the request struct. */
|
||||
coap_send_message(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport, (uip_appdata), coap_serialize_message(ack, uip_appdata));
|
||||
}
|
||||
|
||||
/* Store remote address. */
|
||||
uip_ipaddr_copy(&separate_store->addr, &t->addr);
|
||||
separate_store->port = t->port;
|
||||
|
||||
/* Store correct response type. */
|
||||
separate_store->type = coap_req->type==COAP_TYPE_CON ? COAP_TYPE_CON : COAP_TYPE_NON;
|
||||
separate_store->mid = coap_get_mid(); /* if it was a NON, we burned one MID in the engine... */
|
||||
|
||||
memcpy(separate_store->token, coap_req->token, coap_req->token_len);
|
||||
separate_store->token_len = coap_req->token_len;
|
||||
|
||||
separate_store->block2_num = coap_req->block2_num;
|
||||
separate_store->block2_size = coap_req->block2_size;
|
||||
|
||||
/* Signal the engine to skip automatic response and clear transaction by engine. */
|
||||
coap_error_code = MANUAL_RESPONSE;
|
||||
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
PRINTF("ERROR: Response transaction for separate request not found!\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
/*----------------------------------------------------------------------------*/
|
||||
void
|
||||
coap_separate_resume(void *response, coap_separate_t *separate_store, uint8_t code)
|
||||
{
|
||||
coap_init_message(response, separate_store->type, code, separate_store->mid);
|
||||
if (separate_store->token_len)
|
||||
{
|
||||
coap_set_header_token(response, separate_store->token, separate_store->token_len);
|
||||
}
|
||||
}
|
||||
66
apps/er-coap-13/er-coap-13-separate.h
Normal file
66
apps/er-coap-13/er-coap-13-separate.h
Normal file
|
|
@ -0,0 +1,66 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for separate responses
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_SEPARATE_H_
|
||||
#define COAP_SEPARATE_H_
|
||||
|
||||
#include "er-coap-13.h"
|
||||
|
||||
typedef struct coap_separate {
|
||||
|
||||
uip_ipaddr_t addr;
|
||||
uint16_t port;
|
||||
|
||||
coap_message_type_t type;
|
||||
uint16_t mid;
|
||||
|
||||
uint8_t token_len;
|
||||
uint8_t token[COAP_TOKEN_LEN];
|
||||
|
||||
/* separate + blockwise is untested! */
|
||||
uint32_t block2_num;
|
||||
uint16_t block2_size;
|
||||
|
||||
} coap_separate_t;
|
||||
|
||||
int coap_separate_handler(resource_t *resource, void *request, void *response);
|
||||
void coap_separate_reject();
|
||||
int coap_separate_accept(void *request, coap_separate_t *separate_store);
|
||||
void coap_separate_resume(void *response, coap_separate_t *separate_store, uint8_t code);
|
||||
|
||||
#endif /* COAP_SEPARATE_H_ */
|
||||
199
apps/er-coap-13/er-coap-13-transactions.c
Normal file
199
apps/er-coap-13/er-coap-13-transactions.c
Normal file
|
|
@ -0,0 +1,199 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for reliable transport
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#include "contiki.h"
|
||||
#include "contiki-net.h"
|
||||
|
||||
#include "er-coap-13-transactions.h"
|
||||
#include "er-coap-13-observing.h"
|
||||
|
||||
/*
|
||||
* Modulo mask (+1 and +0.5 for rounding) for a random number to get the tick number for the random
|
||||
* retransmission time between COAP_RESPONSE_TIMEOUT and COAP_RESPONSE_TIMEOUT*COAP_RESPONSE_RANDOM_FACTOR.
|
||||
*/
|
||||
#define COAP_RESPONSE_TIMEOUT_TICKS (CLOCK_SECOND * COAP_RESPONSE_TIMEOUT)
|
||||
#define COAP_RESPONSE_TIMEOUT_BACKOFF_MASK ((CLOCK_SECOND * COAP_RESPONSE_TIMEOUT * (COAP_RESPONSE_RANDOM_FACTOR - 1)) + 1.5)
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#include <stdio.h>
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
|
||||
#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#define PRINT6ADDR(addr)
|
||||
#define PRINTLLADDR(addr)
|
||||
#endif
|
||||
|
||||
|
||||
MEMB(transactions_memb, coap_transaction_t, COAP_MAX_OPEN_TRANSACTIONS);
|
||||
LIST(transactions_list);
|
||||
|
||||
|
||||
static struct process *transaction_handler_process = NULL;
|
||||
|
||||
void
|
||||
coap_register_as_transaction_handler()
|
||||
{
|
||||
transaction_handler_process = PROCESS_CURRENT();
|
||||
}
|
||||
|
||||
coap_transaction_t *
|
||||
coap_new_transaction(uint16_t mid, uip_ipaddr_t *addr, uint16_t port)
|
||||
{
|
||||
coap_transaction_t *t = memb_alloc(&transactions_memb);
|
||||
|
||||
if (t)
|
||||
{
|
||||
t->mid = mid;
|
||||
t->retrans_counter = 0;
|
||||
|
||||
/* save client address */
|
||||
uip_ipaddr_copy(&t->addr, addr);
|
||||
t->port = port;
|
||||
|
||||
list_add(transactions_list, t); /* List itself makes sure same element is not added twice. */
|
||||
}
|
||||
|
||||
return t;
|
||||
}
|
||||
|
||||
void
|
||||
coap_send_transaction(coap_transaction_t *t)
|
||||
{
|
||||
PRINTF("Sending transaction %u\n", t->mid);
|
||||
|
||||
coap_send_message(&t->addr, t->port, t->packet, t->packet_len);
|
||||
|
||||
if (COAP_TYPE_CON==((COAP_HEADER_TYPE_MASK & t->packet[0])>>COAP_HEADER_TYPE_POSITION))
|
||||
{
|
||||
if (t->retrans_counter<COAP_MAX_RETRANSMIT)
|
||||
{
|
||||
/* Not timed out yet. */
|
||||
PRINTF("Keeping transaction %u\n", t->mid);
|
||||
|
||||
if (t->retrans_counter==0)
|
||||
{
|
||||
t->retrans_timer.timer.interval = COAP_RESPONSE_TIMEOUT_TICKS + (random_rand() % (clock_time_t) COAP_RESPONSE_TIMEOUT_BACKOFF_MASK);
|
||||
PRINTF("Initial interval %f\n", (float)t->retrans_timer.timer.interval/CLOCK_SECOND);
|
||||
}
|
||||
else
|
||||
{
|
||||
t->retrans_timer.timer.interval <<= 1; /* double */
|
||||
PRINTF("Doubled (%u) interval %f\n", t->retrans_counter, (float)t->retrans_timer.timer.interval/CLOCK_SECOND);
|
||||
}
|
||||
|
||||
/*FIXME
|
||||
* Hack: Setting timer for responsible process.
|
||||
* Maybe there is a better way, but avoid posting everything to the process.
|
||||
*/
|
||||
struct process *process_actual = PROCESS_CURRENT();
|
||||
process_current = transaction_handler_process;
|
||||
etimer_restart(&t->retrans_timer); /* interval updated above */
|
||||
process_current = process_actual;
|
||||
|
||||
t = NULL;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Timed out. */
|
||||
PRINTF("Timeout\n");
|
||||
restful_response_handler callback = t->callback;
|
||||
void *callback_data = t->callback_data;
|
||||
|
||||
/* handle observers */
|
||||
coap_remove_observer_by_client(&t->addr, t->port);
|
||||
|
||||
coap_clear_transaction(t);
|
||||
|
||||
if (callback) {
|
||||
callback(callback_data, NULL);
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
coap_clear_transaction(t);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
coap_clear_transaction(coap_transaction_t *t)
|
||||
{
|
||||
if (t)
|
||||
{
|
||||
PRINTF("Freeing transaction %u: %p\n", t->mid, t);
|
||||
|
||||
etimer_stop(&t->retrans_timer);
|
||||
list_remove(transactions_list, t);
|
||||
memb_free(&transactions_memb, t);
|
||||
}
|
||||
}
|
||||
|
||||
coap_transaction_t *
|
||||
coap_get_transaction_by_mid(uint16_t mid)
|
||||
{
|
||||
coap_transaction_t *t = NULL;
|
||||
|
||||
for (t = (coap_transaction_t*)list_head(transactions_list); t; t = t->next)
|
||||
{
|
||||
if (t->mid==mid)
|
||||
{
|
||||
PRINTF("Found transaction for MID %u: %p\n", t->mid, t);
|
||||
return t;
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void
|
||||
coap_check_transactions()
|
||||
{
|
||||
coap_transaction_t *t = NULL;
|
||||
|
||||
for (t = (coap_transaction_t*)list_head(transactions_list); t; t = t->next)
|
||||
{
|
||||
if (etimer_expired(&t->retrans_timer))
|
||||
{
|
||||
++(t->retrans_counter);
|
||||
PRINTF("Retransmitting %u (%u)\n", t->mid, t->retrans_counter);
|
||||
coap_send_transaction(t);
|
||||
}
|
||||
}
|
||||
}
|
||||
78
apps/er-coap-13/er-coap-13-transactions.h
Normal file
78
apps/er-coap-13/er-coap-13-transactions.h
Normal file
|
|
@ -0,0 +1,78 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* CoAP module for reliable transport
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_TRANSACTIONS_H_
|
||||
#define COAP_TRANSACTIONS_H_
|
||||
|
||||
#include "er-coap-13.h"
|
||||
|
||||
/*
|
||||
* The number of concurrent messages that can be stored for retransmission in the transaction layer.
|
||||
*/
|
||||
#ifndef COAP_MAX_OPEN_TRANSACTIONS
|
||||
#define COAP_MAX_OPEN_TRANSACTIONS 4
|
||||
#endif /* COAP_MAX_OPEN_TRANSACTIONS */
|
||||
|
||||
/* container for transactions with message buffer and retransmission info */
|
||||
typedef struct coap_transaction {
|
||||
struct coap_transaction *next; /* for LIST */
|
||||
|
||||
uint16_t mid;
|
||||
struct etimer retrans_timer;
|
||||
uint8_t retrans_counter;
|
||||
|
||||
uip_ipaddr_t addr;
|
||||
uint16_t port;
|
||||
|
||||
restful_response_handler callback;
|
||||
void *callback_data;
|
||||
|
||||
uint16_t packet_len;
|
||||
uint8_t packet[COAP_MAX_PACKET_SIZE+1]; /* +1 for the terminating '\0' to simply and savely use snprintf(buf, len+1, "", ...) in the resource handler. */
|
||||
} coap_transaction_t;
|
||||
|
||||
void coap_register_as_transaction_handler();
|
||||
|
||||
coap_transaction_t *coap_new_transaction(uint16_t mid, uip_ipaddr_t *addr, uint16_t port);
|
||||
void coap_send_transaction(coap_transaction_t *t);
|
||||
void coap_clear_transaction(coap_transaction_t *t);
|
||||
coap_transaction_t *coap_get_transaction_by_mid(uint16_t mid);
|
||||
|
||||
void coap_check_transactions();
|
||||
|
||||
#endif /* COAP_TRANSACTIONS_H_ */
|
||||
1131
apps/er-coap-13/er-coap-13.c
Normal file
1131
apps/er-coap-13/er-coap-13.c
Normal file
File diff suppressed because it is too large
Load diff
382
apps/er-coap-13/er-coap-13.h
Normal file
382
apps/er-coap-13/er-coap-13.h
Normal file
|
|
@ -0,0 +1,382 @@
|
|||
/*
|
||||
* Copyright (c) 2012, Institute for Pervasive Computing, ETH Zurich
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
* An implementation of the Constrained Application Protocol (draft 12)
|
||||
* \author
|
||||
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
||||
*/
|
||||
|
||||
#ifndef COAP_12_H_
|
||||
#define COAP_12_H_
|
||||
|
||||
#include <stddef.h> /* for size_t */
|
||||
#include "contiki-net.h"
|
||||
#include "erbium.h"
|
||||
|
||||
#define COAP_LINK_FORMAT_FILTERING 1
|
||||
|
||||
#define COAP_DEFAULT_PORT 5683
|
||||
|
||||
#ifndef COAP_SERVER_PORT
|
||||
#define COAP_SERVER_PORT COAP_DEFAULT_PORT
|
||||
#endif
|
||||
|
||||
#define COAP_DEFAULT_MAX_AGE 60
|
||||
#define COAP_RESPONSE_TIMEOUT 2
|
||||
#define COAP_RESPONSE_RANDOM_FACTOR 1.5
|
||||
#define COAP_MAX_RETRANSMIT 4
|
||||
|
||||
#define COAP_HEADER_LEN 4 /* | version:0x03 type:0x0C tkl:0xF0 | code | mid:0x00FF | mid:0xFF00 | */
|
||||
#define COAP_ETAG_LEN 8 /* The maximum number of bytes for the ETag */
|
||||
#define COAP_TOKEN_LEN 8 /* The maximum number of bytes for the Token */
|
||||
#define COAP_MAX_ACCEPT_NUM 2 /* The maximum number of accept preferences to parse/store */
|
||||
|
||||
#define COAP_HEADER_VERSION_MASK 0xC0
|
||||
#define COAP_HEADER_VERSION_POSITION 6
|
||||
#define COAP_HEADER_TYPE_MASK 0x30
|
||||
#define COAP_HEADER_TYPE_POSITION 4
|
||||
#define COAP_HEADER_TOKEN_LEN_MASK 0x0F
|
||||
#define COAP_HEADER_TOKEN_LEN_POSITION 0
|
||||
|
||||
#define COAP_HEADER_OPTION_DELTA_MASK 0xF0
|
||||
#define COAP_HEADER_OPTION_SHORT_LENGTH_MASK 0x0F
|
||||
|
||||
/*
|
||||
* Conservative size limit, as not all options have to be set at the same time.
|
||||
*/
|
||||
#ifndef COAP_MAX_HEADER_SIZE
|
||||
/* Hdr CoT Age Tag Obs Tok Blo strings */
|
||||
#define COAP_MAX_HEADER_SIZE (4 + 3 + 5 + 1+COAP_ETAG_LEN + 3 + 1+COAP_TOKEN_LEN + 4 + 30) /* 70 */
|
||||
#endif /* COAP_MAX_HEADER_SIZE */
|
||||
|
||||
#define COAP_MAX_PACKET_SIZE (COAP_MAX_HEADER_SIZE + REST_MAX_CHUNK_SIZE)
|
||||
/* 0/14 48 for IPv6 (28 for IPv4) */
|
||||
#if COAP_MAX_PACKET_SIZE > (UIP_BUFSIZE - UIP_LLH_LEN - UIP_IPUDPH_LEN)
|
||||
#error "UIP_CONF_BUFFER_SIZE too small for REST_MAX_CHUNK_SIZE"
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Maximum number of failed request attempts before action
|
||||
*/
|
||||
#ifndef COAP_MAX_ATTEMPTS
|
||||
#define COAP_MAX_ATTEMPTS 4
|
||||
#endif /* COAP_MAX_ATTEMPTS */
|
||||
|
||||
#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
|
||||
#define UIP_UDP_BUF ((struct uip_udp_hdr *)&uip_buf[uip_l2_l3_hdr_len])
|
||||
|
||||
/* Bitmap for set options */
|
||||
enum { OPTION_MAP_SIZE = sizeof(uint8_t) * 8 };
|
||||
#define SET_OPTION(packet, opt) ((packet)->options[opt / OPTION_MAP_SIZE] |= 1 << (opt % OPTION_MAP_SIZE))
|
||||
#define IS_OPTION(packet, opt) ((packet)->options[opt / OPTION_MAP_SIZE] & (1 << (opt % OPTION_MAP_SIZE)))
|
||||
|
||||
#ifndef MIN
|
||||
#define MIN(a, b) ((a) < (b)? (a) : (b))
|
||||
#endif /* MIN */
|
||||
|
||||
/* CoAP message types */
|
||||
typedef enum {
|
||||
COAP_TYPE_CON, /* confirmables */
|
||||
COAP_TYPE_NON, /* non-confirmables */
|
||||
COAP_TYPE_ACK, /* acknowledgements */
|
||||
COAP_TYPE_RST /* reset */
|
||||
} coap_message_type_t;
|
||||
|
||||
/* CoAP request method codes */
|
||||
typedef enum {
|
||||
COAP_GET = 1,
|
||||
COAP_POST,
|
||||
COAP_PUT,
|
||||
COAP_DELETE
|
||||
} coap_method_t;
|
||||
|
||||
/* CoAP response codes */
|
||||
typedef enum {
|
||||
NO_ERROR = 0,
|
||||
|
||||
CREATED_2_01 = 65, /* CREATED */
|
||||
DELETED_2_02 = 66, /* DELETED */
|
||||
VALID_2_03 = 67, /* NOT_MODIFIED */
|
||||
CHANGED_2_04 = 68, /* CHANGED */
|
||||
CONTENT_2_05 = 69, /* OK */
|
||||
|
||||
BAD_REQUEST_4_00 = 128, /* BAD_REQUEST */
|
||||
UNAUTHORIZED_4_01 = 129, /* UNAUTHORIZED */
|
||||
BAD_OPTION_4_02 = 130, /* BAD_OPTION */
|
||||
FORBIDDEN_4_03 = 131, /* FORBIDDEN */
|
||||
NOT_FOUND_4_04 = 132, /* NOT_FOUND */
|
||||
METHOD_NOT_ALLOWED_4_05 = 133, /* METHOD_NOT_ALLOWED */
|
||||
NOT_ACCEPTABLE_4_06 = 134, /* NOT_ACCEPTABLE */
|
||||
PRECONDITION_FAILED_4_12 = 140, /* BAD_REQUEST */
|
||||
REQUEST_ENTITY_TOO_LARGE_4_13 = 141, /* REQUEST_ENTITY_TOO_LARGE */
|
||||
UNSUPPORTED_MEDIA_TYPE_4_15 = 143, /* UNSUPPORTED_MEDIA_TYPE */
|
||||
|
||||
INTERNAL_SERVER_ERROR_5_00 = 160, /* INTERNAL_SERVER_ERROR */
|
||||
NOT_IMPLEMENTED_5_01 = 161, /* NOT_IMPLEMENTED */
|
||||
BAD_GATEWAY_5_02 = 162, /* BAD_GATEWAY */
|
||||
SERVICE_UNAVAILABLE_5_03 = 163, /* SERVICE_UNAVAILABLE */
|
||||
GATEWAY_TIMEOUT_5_04 = 164, /* GATEWAY_TIMEOUT */
|
||||
PROXYING_NOT_SUPPORTED_5_05 = 165, /* PROXYING_NOT_SUPPORTED */
|
||||
|
||||
/* Erbium errors */
|
||||
MEMORY_ALLOCATION_ERROR = 192,
|
||||
PACKET_SERIALIZATION_ERROR,
|
||||
|
||||
/* Erbium hooks */
|
||||
MANUAL_RESPONSE
|
||||
|
||||
} coap_status_t;
|
||||
|
||||
/* CoAP header options */
|
||||
typedef enum {
|
||||
COAP_OPTION_IF_MATCH = 1, /* 0-8 B */
|
||||
COAP_OPTION_URI_HOST = 3, /* 1-255 B */
|
||||
COAP_OPTION_ETAG = 4, /* 1-8 B */
|
||||
COAP_OPTION_IF_NONE_MATCH = 5, /* 0 B */
|
||||
COAP_OPTION_OBSERVE = 6, /* 0-3 B */
|
||||
COAP_OPTION_URI_PORT = 7, /* 0-2 B */
|
||||
COAP_OPTION_LOCATION_PATH = 8, /* 0-255 B */
|
||||
COAP_OPTION_URI_PATH = 11, /* 0-255 B */
|
||||
COAP_OPTION_CONTENT_TYPE = 12, /* 0-2 B */
|
||||
COAP_OPTION_MAX_AGE = 14, /* 0-4 B */
|
||||
COAP_OPTION_URI_QUERY = 15, /* 0-270 B */
|
||||
COAP_OPTION_ACCEPT = 16, /* 0-2 B */
|
||||
COAP_OPTION_TOKEN = 19, /* 1-8 B */
|
||||
COAP_OPTION_LOCATION_QUERY = 20, /* 1-270 B */
|
||||
COAP_OPTION_BLOCK2 = 23, /* 1-3 B */
|
||||
COAP_OPTION_BLOCK1 = 27, /* 1-3 B */
|
||||
COAP_OPTION_SIZE = 28, /* 0-4 B */
|
||||
COAP_OPTION_PROXY_URI = 35, /* 1-270 B */
|
||||
} coap_option_t;
|
||||
|
||||
/* CoAP Content-Types */
|
||||
typedef enum {
|
||||
TEXT_PLAIN = 0,
|
||||
TEXT_XML = 1, /* Indented types are not in the initial registry. */
|
||||
TEXT_CSV = 2,
|
||||
TEXT_HTML = 3,
|
||||
IMAGE_GIF = 21,
|
||||
IMAGE_JPEG = 22,
|
||||
IMAGE_PNG = 23,
|
||||
IMAGE_TIFF = 24,
|
||||
AUDIO_RAW = 25,
|
||||
VIDEO_RAW = 26,
|
||||
APPLICATION_LINK_FORMAT = 40,
|
||||
APPLICATION_XML = 41,
|
||||
APPLICATION_OCTET_STREAM = 42,
|
||||
APPLICATION_RDF_XML = 43,
|
||||
APPLICATION_SOAP_XML = 44,
|
||||
APPLICATION_ATOM_XML = 45,
|
||||
APPLICATION_XMPP_XML = 46,
|
||||
APPLICATION_EXI = 47,
|
||||
APPLICATION_FASTINFOSET = 48,
|
||||
APPLICATION_SOAP_FASTINFOSET = 49,
|
||||
APPLICATION_JSON = 50,
|
||||
APPLICATION_X_OBIX_BINARY = 51
|
||||
} coap_content_type_t;
|
||||
|
||||
/* Parsed message struct */
|
||||
typedef struct {
|
||||
uint8_t *buffer; /* pointer to CoAP header / incoming packet buffer / memory to serialize packet */
|
||||
|
||||
uint8_t version;
|
||||
coap_message_type_t type;
|
||||
uint8_t code;
|
||||
uint16_t mid;
|
||||
|
||||
uint8_t options[COAP_OPTION_PROXY_URI / OPTION_MAP_SIZE + 1]; /* Bitmap to check if option is set */
|
||||
|
||||
coap_content_type_t content_type; /* Parse options once and store; allows setting options in random order */
|
||||
uint32_t max_age;
|
||||
size_t proxy_uri_len;
|
||||
const char *proxy_uri;
|
||||
uint8_t etag_len;
|
||||
uint8_t etag[COAP_ETAG_LEN];
|
||||
size_t uri_host_len;
|
||||
const char *uri_host;
|
||||
size_t location_path_len;
|
||||
const char *location_path;
|
||||
uint16_t uri_port;
|
||||
size_t location_query_len;
|
||||
const char *location_query;
|
||||
size_t uri_path_len;
|
||||
const char *uri_path;
|
||||
uint16_t observe;
|
||||
uint8_t token_len;
|
||||
uint8_t token[COAP_TOKEN_LEN];
|
||||
uint8_t accept_num;
|
||||
uint16_t accept[COAP_MAX_ACCEPT_NUM];
|
||||
uint8_t if_match_len;
|
||||
uint8_t if_match[COAP_ETAG_LEN];
|
||||
uint32_t block2_num;
|
||||
uint8_t block2_more;
|
||||
uint16_t block2_size;
|
||||
uint32_t block2_offset;
|
||||
uint32_t block1_num;
|
||||
uint8_t block1_more;
|
||||
uint16_t block1_size;
|
||||
uint32_t block1_offset;
|
||||
uint32_t size;
|
||||
size_t uri_query_len;
|
||||
const char *uri_query;
|
||||
uint8_t if_none_match;
|
||||
|
||||
uint16_t payload_len;
|
||||
uint8_t *payload;
|
||||
|
||||
} coap_packet_t;
|
||||
|
||||
/* Option format serialization*/
|
||||
#define COAP_SERIALIZE_INT_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
PRINTF(text" [%u]\n", coap_pkt->field); \
|
||||
option += coap_serialize_int_option(number, current_number, option, coap_pkt->field); \
|
||||
current_number = number; \
|
||||
}
|
||||
#define COAP_SERIALIZE_BYTE_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
PRINTF(text" %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", coap_pkt->field##_len, \
|
||||
coap_pkt->field[0], \
|
||||
coap_pkt->field[1], \
|
||||
coap_pkt->field[2], \
|
||||
coap_pkt->field[3], \
|
||||
coap_pkt->field[4], \
|
||||
coap_pkt->field[5], \
|
||||
coap_pkt->field[6], \
|
||||
coap_pkt->field[7] \
|
||||
); /*FIXME always prints 8 bytes */ \
|
||||
option += coap_serialize_array_option(number, current_number, option, coap_pkt->field, coap_pkt->field##_len, '\0'); \
|
||||
current_number = number; \
|
||||
}
|
||||
#define COAP_SERIALIZE_STRING_OPTION(number, field, splitter, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
PRINTF(text" [%.*s]\n", coap_pkt->field##_len, coap_pkt->field); \
|
||||
option += coap_serialize_array_option(number, current_number, option, (uint8_t *) coap_pkt->field, coap_pkt->field##_len, splitter); \
|
||||
current_number = number; \
|
||||
}
|
||||
#define COAP_SERIALIZE_ACCEPT_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) { \
|
||||
int i; \
|
||||
for (i=0; i<coap_pkt->field##_num; ++i) \
|
||||
{ \
|
||||
PRINTF(text" [%u]\n", coap_pkt->field[i]); \
|
||||
option += coap_serialize_int_option(number, current_number, option, coap_pkt->field[i]); \
|
||||
current_number = number; \
|
||||
} \
|
||||
}
|
||||
#define COAP_SERIALIZE_BLOCK_OPTION(number, field, text) \
|
||||
if (IS_OPTION(coap_pkt, number)) \
|
||||
{ \
|
||||
PRINTF(text" [%lu%s (%u B/blk)]\n", coap_pkt->field##_num, coap_pkt->field##_more ? "+" : "", coap_pkt->field##_size); \
|
||||
uint32_t block = coap_pkt->field##_num << 4; \
|
||||
if (coap_pkt->field##_more) block |= 0x8; \
|
||||
block |= 0xF & coap_log_2(coap_pkt->field##_size/16); \
|
||||
PRINTF(text" encoded: 0x%lX\n", block); \
|
||||
option += coap_serialize_int_option(number, current_number, option, block); \
|
||||
current_number = number; \
|
||||
}
|
||||
|
||||
/* To store error code and human-readable payload */
|
||||
extern coap_status_t coap_error_code;
|
||||
extern char *coap_error_message;
|
||||
|
||||
void coap_init_connection(uint16_t port);
|
||||
uint16_t coap_get_mid(void);
|
||||
|
||||
void coap_init_message(void *packet, coap_message_type_t type, uint8_t code, uint16_t mid);
|
||||
size_t coap_serialize_message(void *packet, uint8_t *buffer);
|
||||
void coap_send_message(uip_ipaddr_t *addr, uint16_t port, uint8_t *data, uint16_t length);
|
||||
coap_status_t coap_parse_message(void *request, uint8_t *data, uint16_t data_len);
|
||||
|
||||
int coap_get_query_variable(void *packet, const char *name, const char **output);
|
||||
int coap_get_post_variable(void *packet, const char *name, const char **output);
|
||||
|
||||
/*-----------------------------------------------------------------------------------*/
|
||||
|
||||
int coap_set_status_code(void *packet, unsigned int code);
|
||||
|
||||
unsigned int coap_get_header_content_type(void *packet);
|
||||
int coap_set_header_content_type(void *packet, unsigned int content_type);
|
||||
|
||||
int coap_get_header_accept(void *packet, const uint16_t **accept);
|
||||
int coap_set_header_accept(void *packet, uint16_t accept);
|
||||
|
||||
int coap_get_header_max_age(void *packet, uint32_t *age);
|
||||
int coap_set_header_max_age(void *packet, uint32_t age);
|
||||
|
||||
int coap_get_header_etag(void *packet, const uint8_t **etag);
|
||||
int coap_set_header_etag(void *packet, const uint8_t *etag, size_t etag_len);
|
||||
|
||||
int coap_get_header_if_match(void *packet, const uint8_t **etag);
|
||||
int coap_set_header_if_match(void *packet, const uint8_t *etag, size_t etag_len);
|
||||
|
||||
int coap_get_header_if_none_match(void *packet);
|
||||
int coap_set_header_if_none_match(void *packet);
|
||||
|
||||
int coap_get_header_token(void *packet, const uint8_t **token);
|
||||
int coap_set_header_token(void *packet, const uint8_t *token, size_t token_len);
|
||||
|
||||
int coap_get_header_proxy_uri(void *packet, const char **uri); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_proxy_uri(void *packet, const char *uri);
|
||||
|
||||
int coap_get_header_uri_host(void *packet, const char **host); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_uri_host(void *packet, const char *host);
|
||||
|
||||
int coap_get_header_uri_path(void *packet, const char **path); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_uri_path(void *packet, const char *path);
|
||||
|
||||
int coap_get_header_uri_query(void *packet, const char **query); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_uri_query(void *packet, const char *query);
|
||||
|
||||
int coap_get_header_location_path(void *packet, const char **path); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_location_path(void *packet, const char *path); /* Also splits optional query into Location-Query option. */
|
||||
|
||||
int coap_get_header_location_query(void *packet, const char **query); /* In-place string might not be 0-terminated. */
|
||||
int coap_set_header_location_query(void *packet, const char *query);
|
||||
|
||||
int coap_get_header_observe(void *packet, uint32_t *observe);
|
||||
int coap_set_header_observe(void *packet, uint32_t observe);
|
||||
|
||||
int coap_get_header_block2(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset);
|
||||
int coap_set_header_block2(void *packet, uint32_t num, uint8_t more, uint16_t size);
|
||||
|
||||
int coap_get_header_block1(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset);
|
||||
int coap_set_header_block1(void *packet, uint32_t num, uint8_t more, uint16_t size);
|
||||
|
||||
int coap_get_header_size(void *packet, uint32_t *size);
|
||||
int coap_set_header_size(void *packet, uint32_t size);
|
||||
|
||||
int coap_get_payload(void *packet, const uint8_t **payload);
|
||||
int coap_set_payload(void *packet, const void *payload, size_t length);
|
||||
|
||||
#endif /* COAP_12_H_ */
|
||||
|
|
@ -98,8 +98,9 @@ struct rest_implementation_status
|
|||
const unsigned int FORBIDDEN; /* FORBIDDEN_4_03, FORBIDDEN_403 */
|
||||
const unsigned int NOT_FOUND; /* NOT_FOUND_4_04, NOT_FOUND_404 */
|
||||
const unsigned int METHOD_NOT_ALLOWED; /* METHOD_NOT_ALLOWED_4_05, METHOD_NOT_ALLOWED_405 */
|
||||
const unsigned int NOT_ACCEPTABLE; /* NOT_ACCEPTABLE_4_06, NOT_ACCEPTABLE_406 */
|
||||
const unsigned int REQUEST_ENTITY_TOO_LARGE; /* REQUEST_ENTITY_TOO_LARGE_4_13, REQUEST_ENTITY_TOO_LARGE_413 */
|
||||
const unsigned int UNSUPPORTED_MADIA_TYPE; /* UNSUPPORTED_MADIA_TYPE_4_15, UNSUPPORTED_MADIA_TYPE_415 */
|
||||
const unsigned int UNSUPPORTED_MEDIA_TYPE; /* UNSUPPORTED_MEDIA_TYPE_4_15, UNSUPPORTED_MEDIA_TYPE_415 */
|
||||
|
||||
const unsigned int INTERNAL_SERVER_ERROR; /* INTERNAL_SERVER_ERROR_5_00, INTERNAL_SERVER_ERROR_500 */
|
||||
const unsigned int NOT_IMPLEMENTED; /* NOT_IMPLEMENTED_5_01, NOT_IMPLEMENTED_501 */
|
||||
|
|
@ -182,11 +183,18 @@ struct rest_implementation {
|
|||
/** Get the content-type of a request. */
|
||||
unsigned int (* get_header_content_type)(void *request);
|
||||
|
||||
/** Set the content-type of a response. */
|
||||
/** Set the Content-Type of a response. */
|
||||
int (* set_header_content_type)(void *response, unsigned int content_type);
|
||||
|
||||
/** Get the Accept types of a request. */
|
||||
int (* get_header_accept)(void *request, const uint16_t **accept);
|
||||
|
||||
/** Get the Length option of a request. */
|
||||
int (* get_header_length)(void *request, uint32_t *size);
|
||||
|
||||
/** Set the Length option of a response. */
|
||||
int (* set_header_length)(void *response, uint32_t size);
|
||||
|
||||
/** Get the Max-Age option of a request. */
|
||||
int (* get_header_max_age)(void *request, uint32_t *age);
|
||||
|
||||
|
|
@ -209,7 +217,7 @@ struct rest_implementation {
|
|||
int (* set_header_location)(void *response, const char *location);
|
||||
|
||||
/** Get the payload option of a request. */
|
||||
int (* get_request_payload)(void *request, uint8_t **payload);
|
||||
int (* get_request_payload)(void *request, const uint8_t **payload);
|
||||
|
||||
/** Set the payload option of a response. */
|
||||
int (* set_response_payload)(void *response, const void *payload, size_t length);
|
||||
|
|
@ -224,7 +232,7 @@ struct rest_implementation {
|
|||
int (* get_post_variable)(void *request, const char *name, const char **value);
|
||||
|
||||
/** Send the payload to all subscribers of the resource at url. */
|
||||
void (* notify_subscribers)(resource_t *resource, uint16_t counter, void *notification);
|
||||
void (* notify_subscribers)(resource_t *resource, int32_t counter, void *notification);
|
||||
|
||||
/** The handler for resource subscriptions. */
|
||||
restful_post_handler subscription_handler;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue