Merge pull request #933 from alessandrelli/coap-observe-client
Erbium: client-side support for CoAP Observe
This commit is contained in:
Nicolas Tsiftes
commit
bfd2a90e08
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@ -1,4 +1,6 @@
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er-coap_src = er-coap.c er-coap-engine.c er-coap-transactions.c er-coap-observe.c er-coap-separate.c er-coap-res-well-known-core.c er-coap-block1.c
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er-coap_src = er-coap.c er-coap-engine.c er-coap-transactions.c \
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er-coap-observe.c er-coap-separate.c er-coap-res-well-known-core.c \
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er-coap-block1.c er-coap-observe-client.c
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# Erbium will implement the REST Engine
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# Erbium will implement the REST Engine
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CFLAGS += -DREST=coap_rest_implementation
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CFLAGS += -DREST=coap_rest_implementation
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@ -253,6 +253,16 @@ coap_receive(void)
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}
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}
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/* if(ACKed transaction) */
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/* if(ACKed transaction) */
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transaction = NULL;
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transaction = NULL;
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#if COAP_OBSERVE_CLIENT
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/* if observe notification */
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if((message->type == COAP_TYPE_CON || message->type == COAP_TYPE_NON)
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&& IS_OPTION(message, COAP_OPTION_OBSERVE)) {
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PRINTF("Observe [%u]\n", message->observe);
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coap_handle_notification(&UIP_IP_BUF->srcipaddr, UIP_UDP_BUF->srcport,
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message);
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}
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#endif /* COAP_OBSERVE_CLIENT */
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} /* request or response */
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} /* request or response */
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} /* parsed correctly */
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} /* parsed correctly */
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@ -44,6 +44,7 @@
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#include "er-coap-transactions.h"
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#include "er-coap-transactions.h"
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#include "er-coap-observe.h"
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#include "er-coap-observe.h"
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#include "er-coap-separate.h"
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#include "er-coap-separate.h"
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#include "er-coap-observe-client.h"
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#define SERVER_LISTEN_PORT UIP_HTONS(COAP_SERVER_PORT)
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#define SERVER_LISTEN_PORT UIP_HTONS(COAP_SERVER_PORT)
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342
apps/er-coap/er-coap-observe-client.c
Normal file
342
apps/er-coap/er-coap-observe-client.c
Normal file
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@ -0,0 +1,342 @@
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/*
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* Copyright (c) 2014, Daniele Alessandrelli.
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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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/*
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* \file
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* Extension to Erbium for enabling CoAP observe clients
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* \author
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* Daniele Alessandrelli <daniele.alessandrelli@gmail.com>
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*/
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#include <stdio.h>
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#include <string.h>
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#include "er-coap.h"
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#include "er-coap-observe-client.h"
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/* Compile this code only if client-side support for CoAP Observe is required */
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#if COAP_OBSERVE_CLIENT
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#define DEBUG 1
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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:" \
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"%02x%02x:%02x%02x:%02x%02x:%02x%02x]", \
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((uint8_t *)addr)[0], ((uint8_t *)addr)[1], \
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((uint8_t *)addr)[2], ((uint8_t *)addr)[3], \
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((uint8_t *)addr)[4], ((uint8_t *)addr)[5], \
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((uint8_t *)addr)[6], ((uint8_t *)addr)[7], \
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((uint8_t *)addr)[8], ((uint8_t *)addr)[9], \
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((uint8_t *)addr)[10], ((uint8_t *)addr)[11], \
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((uint8_t *)addr)[12], ((uint8_t *)addr)[13], \
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((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
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#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]", \
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(lladdr)->addr[0], (lladdr)->addr[1], \
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(lladdr)->addr[2], (lladdr)->addr[3], \
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(lladdr)->addr[4], (lladdr)->addr[5])
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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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#endif
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MEMB(obs_subjects_memb, coap_observee_t, COAP_MAX_OBSERVEES);
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LIST(obs_subjects_list);
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/*----------------------------------------------------------------------------*/
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static size_t
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get_token(void *packet, const uint8_t **token)
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{
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coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
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*token = coap_pkt->token;
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return coap_pkt->token_len;
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}
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/*----------------------------------------------------------------------------*/
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static int
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set_token(void *packet, const uint8_t *token, size_t token_len)
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{
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coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
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coap_pkt->token_len = MIN(COAP_TOKEN_LEN, token_len);
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memcpy(coap_pkt->token, token, coap_pkt->token_len);
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return coap_pkt->token_len;
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}
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/*----------------------------------------------------------------------------*/
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coap_observee_t *
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coap_obs_add_observee(uip_ipaddr_t *addr, uint16_t port,
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const uint8_t *token, size_t token_len, const char *url,
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notification_callback_t notification_callback,
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void *data)
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{
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coap_observee_t *o;
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/* Remove existing observe relationship, if any. */
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coap_obs_remove_observee_by_url(addr, port, url);
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o = memb_alloc(&obs_subjects_memb);
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if(o) {
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o->url = url;
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uip_ipaddr_copy(&o->addr, addr);
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o->port = port;
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o->token_len = token_len;
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memcpy(o->token, token, token_len);
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/* o->last_mid = 0; */
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o->notification_callback = notification_callback;
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o->data = data;
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/* stimer_set(&o->refresh_timer, COAP_OBSERVING_REFRESH_INTERVAL); */
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PRINTF("Adding obs_subject for /%s [0x%02X%02X]\n", o->url, o->token[0],
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o->token[1]);
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list_add(obs_subjects_list, o);
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}
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return o;
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}
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/*----------------------------------------------------------------------------*/
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void
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coap_obs_remove_observee(coap_observee_t *o)
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{
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PRINTF("Removing obs_subject for /%s [0x%02X%02X]\n", o->url, o->token[0],
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o->token[1]);
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memb_free(&obs_subjects_memb, o);
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list_remove(obs_subjects_list, o);
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}
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/*----------------------------------------------------------------------------*/
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coap_observee_t *
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coap_get_obs_subject_by_token(const uint8_t *token, size_t token_len)
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{
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coap_observee_t *obs = NULL;
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for(obs = (coap_observee_t *)list_head(obs_subjects_list); obs;
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obs = obs->next) {
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PRINTF("Looking for token 0x%02X%02X\n", token[0], token[1]);
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if(obs->token_len == token_len
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&& memcmp(obs->token, token, token_len) == 0) {
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return obs;
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}
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}
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return NULL;
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}
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/*----------------------------------------------------------------------------*/
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int
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coap_obs_remove_observee_by_token(uip_ipaddr_t *addr, uint16_t port,
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uint8_t *token, size_t token_len)
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{
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int removed = 0;
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coap_observee_t *obs = NULL;
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for(obs = (coap_observee_t *)list_head(obs_subjects_list); obs;
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obs = obs->next) {
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PRINTF("Remove check Token 0x%02X%02X\n", token[0], token[1]);
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if(uip_ipaddr_cmp(&obs->addr, addr)
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&& obs->port == port
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&& obs->token_len == token_len
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&& memcmp(obs->token, token, token_len) == 0) {
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coap_obs_remove_observee(obs);
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removed++;
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}
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}
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return removed;
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}
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/*----------------------------------------------------------------------------*/
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int
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coap_obs_remove_observee_by_url(uip_ipaddr_t *addr, uint16_t port,
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const char *url)
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{
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int removed = 0;
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coap_observee_t *obs = NULL;
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for(obs = (coap_observee_t *)list_head(obs_subjects_list); obs;
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obs = obs->next) {
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PRINTF("Remove check URL %s\n", url);
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if(uip_ipaddr_cmp(&obs->addr, addr)
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&& obs->port == port
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&& (obs->url == url || memcmp(obs->url, url, strlen(obs->url)) == 0)) {
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coap_obs_remove_observee(obs);
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removed++;
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}
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}
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return removed;
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}
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/*----------------------------------------------------------------------------*/
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static void
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simple_reply(coap_message_type_t type, uip_ip6addr_t *addr, uint16_t port,
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coap_packet_t *notification)
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{
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static coap_packet_t response[1];
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size_t len;
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coap_init_message(response, type, NO_ERROR, notification->mid);
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len = coap_serialize_message(response, uip_appdata);
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coap_send_message(addr, port, uip_appdata, len);
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}
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/*----------------------------------------------------------------------------*/
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static coap_notification_flag_t
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classify_notification(void *response, int first)
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{
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coap_packet_t *pkt;
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pkt = (coap_packet_t *)response;
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if(!pkt) {
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PRINTF("no response\n");
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return NO_REPLY_FROM_SERVER;
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}
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PRINTF("server replied\n");
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if(!IS_RESPONSE_CODE_2_XX(pkt)) {
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PRINTF("error response code\n");
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return ERROR_RESPONSE_CODE;
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}
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if(!IS_OPTION(pkt, COAP_OPTION_OBSERVE)) {
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PRINTF("server does not support observe\n");
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return OBSERVE_NOT_SUPPORTED;
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}
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if(first) {
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return OBSERVE_OK;
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}
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return NOTIFICATION_OK;
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}
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/*----------------------------------------------------------------------------*/
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void
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coap_handle_notification(uip_ipaddr_t *addr, uint16_t port,
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coap_packet_t *notification)
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{
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coap_packet_t *pkt;
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const uint8_t *token;
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int token_len;
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coap_observee_t *obs;
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coap_notification_flag_t flag;
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uint32_t observe;
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PRINTF("coap_handle_notification()\n");
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pkt = (coap_packet_t *)notification;
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token_len = get_token(pkt, &token);
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PRINTF("Getting token\n");
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if(0 == token_len) {
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PRINTF("Error while handling coap observe notification: "
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"no token in message\n");
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return;
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|
}
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PRINTF("Getting observee info\n");
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obs = coap_get_obs_subject_by_token(token, token_len);
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|
if(NULL == obs) {
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PRINTF("Error while handling coap observe notification: "
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"no matching token found\n");
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simple_reply(COAP_TYPE_RST, addr, port, notification);
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|
return;
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|
}
|
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|
if(notification->type == COAP_TYPE_CON) {
|
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simple_reply(COAP_TYPE_ACK, addr, port, notification);
|
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|
}
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|
if(obs->notification_callback != NULL) {
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flag = classify_notification(notification, 0);
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|
/* TODO: the following mechanism for discarding duplicates is too trivial */
|
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|
/* refer to Observe RFC for a better solution */
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|
if(flag == NOTIFICATION_OK) {
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coap_get_header_observe(notification, &observe);
|
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|
if(observe == obs->last_observe) {
|
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|
PRINTF("Discarding duplicate\n");
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|
return;
|
||||||
|
}
|
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|
obs->last_observe = observe;
|
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|
}
|
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|
obs->notification_callback(obs, notification, flag);
|
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|
}
|
||||||
|
}
|
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|
/*----------------------------------------------------------------------------*/
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|
static void
|
||||||
|
handle_obs_registration_response(void *data, void *response)
|
||||||
|
{
|
||||||
|
coap_observee_t *obs;
|
||||||
|
notification_callback_t notification_callback;
|
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|
coap_notification_flag_t flag;
|
||||||
|
|
||||||
|
PRINTF("handle_obs_registration_response(): ");
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|
obs = (coap_observee_t *)data;
|
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|
notification_callback = obs->notification_callback;
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|
flag = classify_notification(response, 1);
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|
if(notification_callback) {
|
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|
notification_callback(obs, response, flag);
|
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|
}
|
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|
if(flag != OBSERVE_OK) {
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|
coap_obs_remove_observee(obs);
|
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|
}
|
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|
}
|
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|
/*----------------------------------------------------------------------------*/
|
||||||
|
uint8_t
|
||||||
|
coap_generate_token(uint8_t **token_ptr)
|
||||||
|
{
|
||||||
|
static uint8_t token = 0;
|
||||||
|
|
||||||
|
token++;
|
||||||
|
/* FIXME: we should check that this token is not already used */
|
||||||
|
*token_ptr = (uint8_t *)&token;
|
||||||
|
return sizeof(token);
|
||||||
|
}
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
coap_observee_t *
|
||||||
|
coap_obs_request_registration(uip_ipaddr_t *addr, uint16_t port, char *uri,
|
||||||
|
notification_callback_t notification_callback,
|
||||||
|
void *data)
|
||||||
|
{
|
||||||
|
coap_packet_t request[1];
|
||||||
|
coap_transaction_t *t;
|
||||||
|
uint8_t *token;
|
||||||
|
uint8_t token_len;
|
||||||
|
coap_observee_t *obs;
|
||||||
|
|
||||||
|
obs = NULL;
|
||||||
|
coap_init_message(request, COAP_TYPE_CON, COAP_GET, coap_get_mid());
|
||||||
|
coap_set_header_uri_path(request, uri);
|
||||||
|
coap_set_header_observe(request, 0);
|
||||||
|
token_len = coap_generate_token(&token);
|
||||||
|
set_token(request, token, token_len);
|
||||||
|
t = coap_new_transaction(request->mid, addr, port);
|
||||||
|
if(t) {
|
||||||
|
obs = coap_obs_add_observee(addr, port, (uint8_t *)token, token_len, uri,
|
||||||
|
notification_callback, data);
|
||||||
|
if(obs) {
|
||||||
|
t->callback = handle_obs_registration_response;
|
||||||
|
t->callback_data = obs;
|
||||||
|
t->packet_len = coap_serialize_message(request, t->packet);
|
||||||
|
coap_send_transaction(t);
|
||||||
|
} else {
|
||||||
|
PRINTF("Could not allocate obs_subject resource buffer");
|
||||||
|
coap_clear_transaction(t);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
PRINTF("Could not allocate transaction buffer");
|
||||||
|
}
|
||||||
|
return obs;
|
||||||
|
}
|
||||||
|
#endif /* COAP_OBSERVE_CLIENT */
|
||||||
121
apps/er-coap/er-coap-observe-client.h
Normal file
121
apps/er-coap/er-coap-observe-client.h
Normal file
|
|
@ -0,0 +1,121 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2014, Daniele Alessandrelli.
|
||||||
|
* 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
|
||||||
|
* Extension to Erbium for enabling CoAP observe clients
|
||||||
|
* \author
|
||||||
|
* Daniele Alessandrelli <daniele.alessandrelli@gmail.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef COAP_OBSERVING_CLIENT_H_
|
||||||
|
#define COAP_OBSERVING_CLIENT_H_
|
||||||
|
|
||||||
|
#include "er-coap.h"
|
||||||
|
#include "er-coap-transactions.h"
|
||||||
|
|
||||||
|
#ifndef COAP_OBSERVE_CLIENT
|
||||||
|
#define COAP_OBSERVE_CLIENT 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef COAP_CONF_MAX_OBSERVEES
|
||||||
|
#define COAP_MAX_OBSERVEES COAP_CONF_MAX_OBSERVEES
|
||||||
|
#else
|
||||||
|
#define COAP_MAX_OBSERVEES 4
|
||||||
|
#endif /* COAP_CONF_MAX_OBSERVEES */
|
||||||
|
|
||||||
|
#if COAP_MAX_OPEN_TRANSACTIONS < COAP_MAX_OBSERVEES
|
||||||
|
#warning "COAP_MAX_OPEN_TRANSACTIONS smaller than COAP_MAX_OBSERVEES: " \
|
||||||
|
"this may be a problem"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define IS_RESPONSE_CODE_2_XX(message) (64 < message->code \
|
||||||
|
&& message->code < 128)
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
typedef enum {
|
||||||
|
OBSERVE_OK,
|
||||||
|
NOTIFICATION_OK,
|
||||||
|
OBSERVE_NOT_SUPPORTED,
|
||||||
|
ERROR_RESPONSE_CODE,
|
||||||
|
NO_REPLY_FROM_SERVER,
|
||||||
|
} coap_notification_flag_t;
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
typedef struct coap_observee_s coap_observee_t;
|
||||||
|
|
||||||
|
typedef void (*notification_callback_t)(coap_observee_t *subject,
|
||||||
|
void *notification,
|
||||||
|
coap_notification_flag_t);
|
||||||
|
|
||||||
|
struct coap_observee_s {
|
||||||
|
coap_observee_t *next; /* for LIST */
|
||||||
|
uip_ipaddr_t addr;
|
||||||
|
uint16_t port;
|
||||||
|
const char *url;
|
||||||
|
uint8_t token_len;
|
||||||
|
uint8_t token[COAP_TOKEN_LEN];
|
||||||
|
void *data; /* generic pointer for storing user data */
|
||||||
|
notification_callback_t notification_callback;
|
||||||
|
uint32_t last_observe;
|
||||||
|
};
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
coap_observee_t *coap_obs_add_observee(uip_ipaddr_t *addr, uint16_t port,
|
||||||
|
const uint8_t *token, size_t token_len,
|
||||||
|
const char *url,
|
||||||
|
notification_callback_t
|
||||||
|
notification_callback, void *data);
|
||||||
|
|
||||||
|
void coap_obs_remove_observee(coap_observee_t *o);
|
||||||
|
|
||||||
|
coap_observee_t *coap_obs_get_observee_by_token(const uint8_t *token,
|
||||||
|
size_t token_len);
|
||||||
|
|
||||||
|
int coap_obs_remove_observee_by_token(uip_ipaddr_t *addr, uint16_t port,
|
||||||
|
uint8_t *token, size_t token_len);
|
||||||
|
|
||||||
|
int coap_obs_remove_observee_by_url(uip_ipaddr_t *addr, uint16_t port,
|
||||||
|
const char *url);
|
||||||
|
|
||||||
|
void coap_handle_notification(uip_ipaddr_t *, uint16_t port,
|
||||||
|
coap_packet_t *notification);
|
||||||
|
|
||||||
|
coap_observee_t *coap_obs_request_registration(uip_ipaddr_t *addr,
|
||||||
|
uint16_t port, char *uri,
|
||||||
|
notification_callback_t
|
||||||
|
notification_callback,
|
||||||
|
void *data);
|
||||||
|
/* TODO: this function may be moved to er-coap.c */
|
||||||
|
uint8_t coap_generate_token(uint8_t **token_ptr);
|
||||||
|
|
||||||
|
#endif /* COAP_OBSERVING_CLIENT_H_ */
|
||||||
181
examples/er-rest-example/er-example-observe-client.c
Normal file
181
examples/er-rest-example/er-example-observe-client.c
Normal file
|
|
@ -0,0 +1,181 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2014, Daniele Alessandrelli.
|
||||||
|
* 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
|
||||||
|
* Erbium (Er) CoAP observe client example.
|
||||||
|
* \author
|
||||||
|
* Daniele Alessandrelli <daniele.alessandrelli@gmail.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include "contiki.h"
|
||||||
|
#include "contiki-net.h"
|
||||||
|
#include "er-coap-engine.h"
|
||||||
|
#include "dev/button-sensor.h"
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
#define DEBUG 0
|
||||||
|
#if DEBUG
|
||||||
|
#define PRINTF(...) printf(__VA_ARGS__)
|
||||||
|
#define PRINTFLN(format, ...) printf(format "\n", ##__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])
|
||||||
|
#else
|
||||||
|
#define PRINTF(...)
|
||||||
|
#define PRINT6ADDR(addr)
|
||||||
|
#define PRINTFLN(...)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
/* FIXME: This server address is hard-coded for Cooja */
|
||||||
|
#define SERVER_NODE(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, \
|
||||||
|
0x7402, 0x0002, 0x0202)
|
||||||
|
#define REMOTE_PORT UIP_HTONS(COAP_DEFAULT_PORT)
|
||||||
|
/* Toggle interval in seconds */
|
||||||
|
#define TOGGLE_INTERVAL 30
|
||||||
|
/* The path of the resource to observe */
|
||||||
|
#define OBS_RESOURCE_URI "test/push"
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
static uip_ipaddr_t server_ipaddr[1]; /* holds the server ip address */
|
||||||
|
static coap_observee_t *obs;
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
PROCESS(er_example_observe_client, "Erbium Coap Observe Client Example");
|
||||||
|
AUTOSTART_PROCESSES(&er_example_observe_client);
|
||||||
|
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
/*
|
||||||
|
* Handle the response to the observe request and the following notifications
|
||||||
|
*/
|
||||||
|
static void
|
||||||
|
notification_callback(coap_observee_t *obs, void *notification,
|
||||||
|
coap_notification_flag_t flag)
|
||||||
|
{
|
||||||
|
int len = 0;
|
||||||
|
const uint8_t *payload = NULL;
|
||||||
|
|
||||||
|
printf("Notification handler\n");
|
||||||
|
printf("Observee URI: %s\n", obs->url);
|
||||||
|
if(notification) {
|
||||||
|
len = coap_get_payload(notification, &payload);
|
||||||
|
}
|
||||||
|
switch(flag) {
|
||||||
|
case NOTIFICATION_OK:
|
||||||
|
printf("NOTIFICATION OK: %*s\n", len, (char *)payload);
|
||||||
|
break;
|
||||||
|
case OBSERVE_OK: /* server accepeted observation request */
|
||||||
|
printf("OBSERVE_OK: %*s\n", len, (char *)payload);
|
||||||
|
break;
|
||||||
|
case OBSERVE_NOT_SUPPORTED:
|
||||||
|
printf("OBSERVE_NOT_SUPPORTED: %*s\n", len, (char *)payload);
|
||||||
|
obs = NULL;
|
||||||
|
break;
|
||||||
|
case ERROR_RESPONSE_CODE:
|
||||||
|
printf("ERROR_RESPONSE_CODE: %*s\n", len, (char *)payload);
|
||||||
|
obs = NULL;
|
||||||
|
break;
|
||||||
|
case NO_REPLY_FROM_SERVER:
|
||||||
|
printf("NO_REPLY_FROM_SERVER: "
|
||||||
|
"removing observe registration with token %x%x\n",
|
||||||
|
obs->token[0], obs->token[1]);
|
||||||
|
obs = NULL;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
/*
|
||||||
|
* Toggle the observation of the remote resource
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
toggle_observation(void)
|
||||||
|
{
|
||||||
|
if(obs) {
|
||||||
|
printf("Stopping observation\n");
|
||||||
|
coap_obs_remove_observee(obs);
|
||||||
|
obs = NULL;
|
||||||
|
} else {
|
||||||
|
printf("Starting observation\n");
|
||||||
|
obs = coap_obs_request_registration(server_ipaddr, REMOTE_PORT,
|
||||||
|
OBS_RESOURCE_URI, notification_callback, NULL);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/*----------------------------------------------------------------------------*/
|
||||||
|
/*
|
||||||
|
* The main (proto-)thread. It starts/stops the observation of the remote
|
||||||
|
* resource every time the timer elapses or the button (if available) is
|
||||||
|
* pressed
|
||||||
|
*/
|
||||||
|
PROCESS_THREAD(er_example_observe_client, ev, data)
|
||||||
|
{
|
||||||
|
PROCESS_BEGIN();
|
||||||
|
|
||||||
|
static struct etimer et;
|
||||||
|
|
||||||
|
/* store server address in server_ipaddr */
|
||||||
|
SERVER_NODE(server_ipaddr);
|
||||||
|
/* receives all CoAP messages */
|
||||||
|
coap_init_engine();
|
||||||
|
/* init timer and button (if available) */
|
||||||
|
etimer_set(&et, TOGGLE_INTERVAL * CLOCK_SECOND);
|
||||||
|
#if PLATFORM_HAS_BUTTON
|
||||||
|
SENSORS_ACTIVATE(button_sensor);
|
||||||
|
printf("Press a button to start/stop observation of remote resource\n");
|
||||||
|
#endif
|
||||||
|
/* toggle observation every time the timer elapses or the button is pressed */
|
||||||
|
while(1) {
|
||||||
|
PROCESS_YIELD();
|
||||||
|
if(etimer_expired(&et)) {
|
||||||
|
printf("--Toggle timer--\n");
|
||||||
|
toggle_observation();
|
||||||
|
printf("\n--Done--\n");
|
||||||
|
etimer_reset(&et);
|
||||||
|
#if PLATFORM_HAS_BUTTON
|
||||||
|
} else if(ev == sensors_event && data == &button_sensor) {
|
||||||
|
printf("--Toggle tutton--\n");
|
||||||
|
toggle_observation();
|
||||||
|
printf("\n--Done--\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
}
|
||||||
|
PROCESS_END();
|
||||||
|
}
|
||||||
|
|
@ -93,4 +93,6 @@
|
||||||
#undef COAP_PROXY_OPTION_PROCESSING
|
#undef COAP_PROXY_OPTION_PROCESSING
|
||||||
#define COAP_PROXY_OPTION_PROCESSING 0
|
#define COAP_PROXY_OPTION_PROCESSING 0
|
||||||
|
|
||||||
|
/* Enable client-side support for COAP observe */
|
||||||
|
#define COAP_OBSERVE_CLIENT 1
|
||||||
#endif /* __PROJECT_ERBIUM_CONF_H__ */
|
#endif /* __PROJECT_ERBIUM_CONF_H__ */
|
||||||
|
|
|
||||||
203
examples/er-rest-example/server-client-observe.csc
Normal file
203
examples/er-rest-example/server-client-observe.csc
Normal file
|
|
@ -0,0 +1,203 @@
|
||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<simconf>
|
||||||
|
<project EXPORT="discard">[APPS_DIR]/mrm</project>
|
||||||
|
<project EXPORT="discard">[APPS_DIR]/mspsim</project>
|
||||||
|
<project EXPORT="discard">[APPS_DIR]/avrora</project>
|
||||||
|
<project EXPORT="discard">[APPS_DIR]/serial_socket</project>
|
||||||
|
<project EXPORT="discard">[APPS_DIR]/collect-view</project>
|
||||||
|
<project EXPORT="discard">[APPS_DIR]/powertracker</project>
|
||||||
|
<simulation>
|
||||||
|
<title>REST with RPL router</title>
|
||||||
|
<speedlimit>1.0</speedlimit>
|
||||||
|
<randomseed>123456</randomseed>
|
||||||
|
<motedelay_us>1000000</motedelay_us>
|
||||||
|
<radiomedium>
|
||||||
|
org.contikios.cooja.radiomediums.UDGM
|
||||||
|
<transmitting_range>50.0</transmitting_range>
|
||||||
|
<interference_range>50.0</interference_range>
|
||||||
|
<success_ratio_tx>1.0</success_ratio_tx>
|
||||||
|
<success_ratio_rx>1.0</success_ratio_rx>
|
||||||
|
</radiomedium>
|
||||||
|
<events>
|
||||||
|
<logoutput>40000</logoutput>
|
||||||
|
</events>
|
||||||
|
<motetype>
|
||||||
|
org.contikios.cooja.mspmote.SkyMoteType
|
||||||
|
<identifier>rplroot</identifier>
|
||||||
|
<description>Sky RPL Root</description>
|
||||||
|
<source EXPORT="discard">[CONTIKI_DIR]/examples/ipv6/rpl-border-router/border-router.c</source>
|
||||||
|
<commands EXPORT="discard">make border-router.sky TARGET=sky</commands>
|
||||||
|
<firmware EXPORT="copy">[CONTIKI_DIR]/examples/ipv6/rpl-border-router/border-router.sky</firmware>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.Position</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.RimeAddress</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.IPAddress</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.Mote2MoteRelations</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.MoteAttributes</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspClock</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspMoteID</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyButton</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyFlash</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyCoffeeFilesystem</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.Msp802154Radio</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspSerial</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyLED</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspDebugOutput</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyTemperature</moteinterface>
|
||||||
|
</motetype>
|
||||||
|
<motetype>
|
||||||
|
org.contikios.cooja.mspmote.SkyMoteType
|
||||||
|
<identifier>server</identifier>
|
||||||
|
<description>Erbium Server</description>
|
||||||
|
<source EXPORT="discard">[CONTIKI_DIR]/examples/er-rest-example/er-example-server.c</source>
|
||||||
|
<commands EXPORT="discard">make er-example-server.sky TARGET=sky</commands>
|
||||||
|
<firmware EXPORT="copy">[CONTIKI_DIR]/examples/er-rest-example/er-example-server.sky</firmware>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.Position</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.RimeAddress</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.IPAddress</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.Mote2MoteRelations</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.MoteAttributes</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspClock</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspMoteID</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyButton</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyFlash</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyCoffeeFilesystem</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.Msp802154Radio</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspSerial</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyLED</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspDebugOutput</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyTemperature</moteinterface>
|
||||||
|
</motetype>
|
||||||
|
<motetype>
|
||||||
|
org.contikios.cooja.mspmote.SkyMoteType
|
||||||
|
<identifier>client</identifier>
|
||||||
|
<description>Erbium Client</description>
|
||||||
|
<source EXPORT="discard">[CONTIKI_DIR]/examples/er-rest-example/er-example-observe-client.c</source>
|
||||||
|
<commands EXPORT="discard">make er-example-observe-client.sky TARGET=sky</commands>
|
||||||
|
<firmware EXPORT="copy">[CONTIKI_DIR]/examples/er-rest-example/er-example-observe-client.sky</firmware>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.Position</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.RimeAddress</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.IPAddress</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.Mote2MoteRelations</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.interfaces.MoteAttributes</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspClock</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspMoteID</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyButton</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyFlash</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyCoffeeFilesystem</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.Msp802154Radio</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspSerial</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyLED</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.MspDebugOutput</moteinterface>
|
||||||
|
<moteinterface>org.contikios.cooja.mspmote.interfaces.SkyTemperature</moteinterface>
|
||||||
|
</motetype>
|
||||||
|
<mote>
|
||||||
|
<breakpoints />
|
||||||
|
<interface_config>
|
||||||
|
org.contikios.cooja.interfaces.Position
|
||||||
|
<x>33.260163187353555</x>
|
||||||
|
<y>30.643217359962595</y>
|
||||||
|
<z>0.0</z>
|
||||||
|
</interface_config>
|
||||||
|
<interface_config>
|
||||||
|
org.contikios.cooja.mspmote.interfaces.MspMoteID
|
||||||
|
<id>1</id>
|
||||||
|
</interface_config>
|
||||||
|
<motetype_identifier>rplroot</motetype_identifier>
|
||||||
|
</mote>
|
||||||
|
<mote>
|
||||||
|
<breakpoints />
|
||||||
|
<interface_config>
|
||||||
|
org.contikios.cooja.interfaces.Position
|
||||||
|
<x>54.537149936813485</x>
|
||||||
|
<y>51.51086225537906</y>
|
||||||
|
<z>0.0</z>
|
||||||
|
</interface_config>
|
||||||
|
<interface_config>
|
||||||
|
org.contikios.cooja.mspmote.interfaces.MspMoteID
|
||||||
|
<id>2</id>
|
||||||
|
</interface_config>
|
||||||
|
<motetype_identifier>server</motetype_identifier>
|
||||||
|
</mote>
|
||||||
|
<mote>
|
||||||
|
<breakpoints />
|
||||||
|
<interface_config>
|
||||||
|
org.contikios.cooja.interfaces.Position
|
||||||
|
<x>77.97942851220571</x>
|
||||||
|
<y>67.86182390447284</y>
|
||||||
|
<z>0.0</z>
|
||||||
|
</interface_config>
|
||||||
|
<interface_config>
|
||||||
|
org.contikios.cooja.mspmote.interfaces.MspMoteID
|
||||||
|
<id>3</id>
|
||||||
|
</interface_config>
|
||||||
|
<motetype_identifier>client</motetype_identifier>
|
||||||
|
</mote>
|
||||||
|
</simulation>
|
||||||
|
<plugin>
|
||||||
|
org.contikios.cooja.plugins.SimControl
|
||||||
|
<width>259</width>
|
||||||
|
<z>3</z>
|
||||||
|
<height>179</height>
|
||||||
|
<location_x>2</location_x>
|
||||||
|
<location_y>1</location_y>
|
||||||
|
</plugin>
|
||||||
|
<plugin>
|
||||||
|
org.contikios.cooja.plugins.Visualizer
|
||||||
|
<plugin_config>
|
||||||
|
<skin>org.contikios.cooja.plugins.skins.IDVisualizerSkin</skin>
|
||||||
|
<skin>org.contikios.cooja.plugins.skins.UDGMVisualizerSkin</skin>
|
||||||
|
<skin>org.contikios.cooja.plugins.skins.MoteTypeVisualizerSkin</skin>
|
||||||
|
<skin>org.contikios.cooja.plugins.skins.AttributeVisualizerSkin</skin>
|
||||||
|
<skin>org.contikios.cooja.plugins.skins.LEDVisualizerSkin</skin>
|
||||||
|
<skin>org.contikios.cooja.plugins.skins.AddressVisualizerSkin</skin>
|
||||||
|
<viewport>2.092412892721766 0.0 0.0 2.092412892721766 34.70057915472623 -45.606066372444175</viewport>
|
||||||
|
</plugin_config>
|
||||||
|
<width>300</width>
|
||||||
|
<z>4</z>
|
||||||
|
<height>178</height>
|
||||||
|
<location_x>261</location_x>
|
||||||
|
<location_y>1</location_y>
|
||||||
|
</plugin>
|
||||||
|
<plugin>
|
||||||
|
org.contikios.cooja.plugins.LogListener
|
||||||
|
<plugin_config>
|
||||||
|
<filter />
|
||||||
|
<formatted_time />
|
||||||
|
<coloring />
|
||||||
|
</plugin_config>
|
||||||
|
<width>762</width>
|
||||||
|
<z>0</z>
|
||||||
|
<height>491</height>
|
||||||
|
<location_x>2</location_x>
|
||||||
|
<location_y>182</location_y>
|
||||||
|
</plugin>
|
||||||
|
<plugin>
|
||||||
|
org.contikios.cooja.plugins.RadioLogger
|
||||||
|
<plugin_config>
|
||||||
|
<split>167</split>
|
||||||
|
<formatted_time />
|
||||||
|
<showdups>false</showdups>
|
||||||
|
<hidenodests>false</hidenodests>
|
||||||
|
<analyzers name="6lowpan" />
|
||||||
|
</plugin_config>
|
||||||
|
<width>560</width>
|
||||||
|
<z>1</z>
|
||||||
|
<height>492</height>
|
||||||
|
<location_x>764</location_x>
|
||||||
|
<location_y>181</location_y>
|
||||||
|
</plugin>
|
||||||
|
<plugin>
|
||||||
|
org.contikios.cooja.serialsocket.SerialSocketServer
|
||||||
|
<mote_arg>0</mote_arg>
|
||||||
|
<plugin_config>
|
||||||
|
<port>60001</port>
|
||||||
|
<bound>true</bound>
|
||||||
|
</plugin_config>
|
||||||
|
<width>362</width>
|
||||||
|
<z>2</z>
|
||||||
|
<height>116</height>
|
||||||
|
<location_x>561</location_x>
|
||||||
|
<location_y>1</location_y>
|
||||||
|
</plugin>
|
||||||
|
</simconf>
|
||||||
|
|
||||||
Loading…
Reference in a new issue