Maggie Mei / mbedConnectorInterfaceWithDM

use TCP to connect to mbed connector

Fork of mbedConnectorInterfaceWithDM by Doug Anson

source/Utils.cpp@10:3f79b5e67c22, 2016-03-04 (annotated)

Committer:
ansond
Date:
Fri Mar 04 19:16:57 2016 +0000
Revision:
10:3f79b5e67c22
Parent:
8:f950fb1b78c0
Child:
11:3d4434825cd7
updated to allow for specification of UDP or TCP under CoAP and IPv4 or IPv6 addressing types

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 1:16f0fb5b8d97 1 /**
ansond 1:16f0fb5b8d97 2 * @file Utils.cpp
ansond 1:16f0fb5b8d97 3 * @brief mbed CoAP Endpoint misc utils collection
ansond 1:16f0fb5b8d97 4 * @author Doug Anson
ansond 1:16f0fb5b8d97 5 * @version 1.0
ansond 1:16f0fb5b8d97 6 * @see
ansond 1:16f0fb5b8d97 7 *
ansond 1:16f0fb5b8d97 8 * Copyright (c) 2014
ansond 1:16f0fb5b8d97 9 *
ansond 1:16f0fb5b8d97 10 * Licensed under the Apache License, Version 2.0 (the "License");
ansond 1:16f0fb5b8d97 11 * you may not use this file except in compliance with the License.
ansond 1:16f0fb5b8d97 12 * You may obtain a copy of the License at
ansond 1:16f0fb5b8d97 13 *
ansond 1:16f0fb5b8d97 14 * http://www.apache.org/licenses/LICENSE-2.0
ansond 1:16f0fb5b8d97 15 *
ansond 1:16f0fb5b8d97 16 * Unless required by applicable law or agreed to in writing, software
ansond 1:16f0fb5b8d97 17 * distributed under the License is distributed on an "AS IS" BASIS,
ansond 1:16f0fb5b8d97 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ansond 1:16f0fb5b8d97 19 * See the License for the specific language governing permissions and
ansond 1:16f0fb5b8d97 20 * limitations under the License.
ansond 1:16f0fb5b8d97 21 */
ansond 1:16f0fb5b8d97 22
ansond 1:16f0fb5b8d97 23 // mbed Endpoint includes
ansond 1:16f0fb5b8d97 24 #include "mbed-connector-interface/ConnectorEndpoint.h"
ansond 1:16f0fb5b8d97 25 #include "mbed-connector-interface/OptionsBuilder.h"
ansond 6:d4d1105a1777 26 #include "mbed-connector-interface/mbedEndpointNetwork.h"
ansond 1:16f0fb5b8d97 27
ansond 10:3f79b5e67c22 28 // Maximum CoAP URL length
ansond 10:3f79b5e67c22 29 #define MAX_CONN_URL_LENGTH 128
ansond 10:3f79b5e67c22 30
ansond 1:16f0fb5b8d97 31 // External references (defined in main.cpp)
ansond 1:16f0fb5b8d97 32 Connector::Options *configure_endpoint(Connector::OptionsBuilder &builder);
ansond 1:16f0fb5b8d97 33 extern Logger logger;
ansond 1:16f0fb5b8d97 34
ansond 8:f950fb1b78c0 35 // Our Endpoint
ansond 8:f950fb1b78c0 36 Connector::Endpoint *__endpoint = NULL;
ansond 8:f950fb1b78c0 37
ansond 1:16f0fb5b8d97 38 // Our Endpoint configured Options
ansond 1:16f0fb5b8d97 39 Connector::OptionsBuilder config;
ansond 1:16f0fb5b8d97 40 Connector::Options *options = NULL;
ansond 1:16f0fb5b8d97 41
ansond 8:f950fb1b78c0 42 // initialize the Connector::Endpoint instance
ansond 8:f950fb1b78c0 43 void *utils_init_endpoint(bool canActAsRouterNode) {
ansond 8:f950fb1b78c0 44 // alloc Endpoint
ansond 8:f950fb1b78c0 45 logger.log("Endpoint: allocating endpoint instance...");
ansond 8:f950fb1b78c0 46 Connector::Endpoint *ep = new Connector::Endpoint(&logger,options);
ansond 8:f950fb1b78c0 47 if (ep != NULL) {
ansond 8:f950fb1b78c0 48 ep->asRouterNode(canActAsRouterNode);
ansond 8:f950fb1b78c0 49 }
ansond 8:f950fb1b78c0 50 return (void *)ep;
ansond 8:f950fb1b78c0 51 }
ansond 1:16f0fb5b8d97 52
ansond 1:16f0fb5b8d97 53 // further simplifies the endpoint main() configuration by removing the final initialization details of the endpoint...
ansond 1:16f0fb5b8d97 54 void utils_configure_endpoint(void *p)
ansond 1:16f0fb5b8d97 55 {
ansond 1:16f0fb5b8d97 56 // our Endpoint
ansond 1:16f0fb5b8d97 57 Connector::Endpoint *ep = (Connector::Endpoint *)p;
ansond 1:16f0fb5b8d97 58
ansond 1:16f0fb5b8d97 59 // NSP/NSDL default configuration - see mbedConnectorInterface.h for definitions...
ansond 1:16f0fb5b8d97 60 logger.log("Endpoint: setting defaults...");
ansond 1:16f0fb5b8d97 61 config.setEndpointNodename(NODE_NAME);
ansond 1:16f0fb5b8d97 62 config.setEndpointType(NSP_ENDPOINT_TYPE);
ansond 1:16f0fb5b8d97 63 config.setRegUpdatePeriod(REG_UPDATE_PERIOD_MS);
ansond 1:16f0fb5b8d97 64 config.setLifetime(REG_LIFETIME_SEC);
ansond 0:1f1f55e73248 65
ansond 1:16f0fb5b8d97 66 // WiFi defaults
ansond 1:16f0fb5b8d97 67 config.setWiFiSSID((char *)WIFI_DEFAULT_SSID); // default: changeme
ansond 1:16f0fb5b8d97 68 config.setWiFiAuthType(WIFI_WPA_PERSONAL); // default: WPA Personal
ansond 1:16f0fb5b8d97 69 config.setWiFiAuthKey((char *)WIFI_DEFAULT_AUTH_KEY); // default: changeme
ansond 8:f950fb1b78c0 70
ansond 8:f950fb1b78c0 71 // 802.15.4 defaults
ansond 8:f950fb1b78c0 72 unsigned char psk[16];
ansond 8:f950fb1b78c0 73 unsigned char psk_identity[2];
ansond 8:f950fb1b78c0 74 memset(psk,0,16);
ansond 8:f950fb1b78c0 75 memset(psk_identity,0,2);
ansond 8:f950fb1b78c0 76 config.setPreSharedKey(psk);
ansond 8:f950fb1b78c0 77 config.setPreSharedKeyIdentity(psk_identity);
ansond 1:16f0fb5b8d97 78
ansond 1:16f0fb5b8d97 79 // Establish default CoAP observation behavior
ansond 1:16f0fb5b8d97 80 config.setImmedateObservationEnabled(true);
ansond 1:16f0fb5b8d97 81
ansond 1:16f0fb5b8d97 82 // Establish default CoAP GET-based observation control behavior
ansond 1:16f0fb5b8d97 83 config.setEnableGETObservationControl(false);
ansond 1:16f0fb5b8d97 84
ansond 1:16f0fb5b8d97 85 // main.cpp can override or change any of the above defaults...
ansond 1:16f0fb5b8d97 86 logger.log("Endpoint: gathering configuration overrides...");
ansond 1:16f0fb5b8d97 87 options = configure_endpoint(config);
ansond 8:f950fb1b78c0 88 ep->setOptions(options);
ansond 8:f950fb1b78c0 89
ansond 1:16f0fb5b8d97 90 // DONE
ansond 1:16f0fb5b8d97 91 logger.log("Endpoint: endpoint configuration completed.");
ansond 1:16f0fb5b8d97 92 }
ansond 1:16f0fb5b8d97 93
ansond 8:f950fb1b78c0 94 // build out the endpoint and its resources
ansond 8:f950fb1b78c0 95 void utils_build_endpoint(void *p)
ansond 1:16f0fb5b8d97 96 {
ansond 1:16f0fb5b8d97 97 if (p != NULL) {
ansond 8:f950fb1b78c0 98 // Build the Endpoint
ansond 8:f950fb1b78c0 99 logger.log("Endpoint: building endpoint and its resources...");
ansond 1:16f0fb5b8d97 100 Connector::Endpoint *ep = (Connector::Endpoint *)p;
ansond 8:f950fb1b78c0 101 ep->build_endpoint();
ansond 1:16f0fb5b8d97 102 }
ansond 10:3f79b5e67c22 103 }
ansond 10:3f79b5e67c22 104
ansond 10:3f79b5e67c22 105 // parse out the CoAP port number from the connection URL
ansond 10:3f79b5e67c22 106 uint16_t extract_port_from_url(char *url,uint16_t default_port)
ansond 10:3f79b5e67c22 107 {
ansond 10:3f79b5e67c22 108 uint16_t port = default_port;
ansond 10:3f79b5e67c22 109
ansond 10:3f79b5e67c22 110 if (url != NULL && strlen(url) > 0) {
ansond 10:3f79b5e67c22 111 char buffer[MAX_CONN_URL_LENGTH+1];
ansond 10:3f79b5e67c22 112 char uri[MAX_CONN_URL_LENGTH+1];
ansond 10:3f79b5e67c22 113 char path[MAX_CONN_URL_LENGTH+1];
ansond 10:3f79b5e67c22 114
ansond 10:3f79b5e67c22 115 // initialize the buffer
ansond 10:3f79b5e67c22 116 memset(buffer,0,MAX_CONN_URL_LENGTH+1);
ansond 10:3f79b5e67c22 117 memset(uri,0,MAX_CONN_URL_LENGTH+1);
ansond 10:3f79b5e67c22 118 memset(path,0,MAX_CONN_URL_LENGTH+1);
ansond 10:3f79b5e67c22 119 int length = strlen(url);
ansond 10:3f79b5e67c22 120
ansond 10:3f79b5e67c22 121 // truncate if needed
ansond 10:3f79b5e67c22 122 if (length >MAX_CONN_URL_LENGTH) length = MAX_CONN_URL_LENGTH;
ansond 10:3f79b5e67c22 123
ansond 10:3f79b5e67c22 124 // make a copy...
ansond 10:3f79b5e67c22 125 memcpy(buffer,url,length);
ansond 10:3f79b5e67c22 126
ansond 10:3f79b5e67c22 127 // remove the forward slashes and colons
ansond 10:3f79b5e67c22 128 for(int i=0;i<length;++i) {
ansond 10:3f79b5e67c22 129 if (buffer[i] == ':') buffer[i] = ' ';
ansond 10:3f79b5e67c22 130 if (buffer[i] == '/') buffer[i] = ' ';
ansond 10:3f79b5e67c22 131 }
ansond 10:3f79b5e67c22 132
ansond 10:3f79b5e67c22 133 // parse
ansond 10:3f79b5e67c22 134 sscanf(buffer,"%s %s %d",uri,path,(int *)&port);
ansond 10:3f79b5e67c22 135 }
ansond 10:3f79b5e67c22 136
ansond 10:3f79b5e67c22 137 // DEBUG
ansond 10:3f79b5e67c22 138 logger.log("Endpoint: CoAP port: %u",port);
ansond 10:3f79b5e67c22 139
ansond 10:3f79b5e67c22 140 // return the port
ansond 10:3f79b5e67c22 141 return port;
ansond 8:f950fb1b78c0 142 }