Renata Frenken / Mbed 2 deprecated Coap

CoAP server ported from Arduino microcoap

Dependencies:   EthernetInterface Socket mbed-rtos mbed

endpoints.cpp@0:64df7fc091da, 2017-03-23 (annotated)

Committer:
rfrenken
Date:
Thu Mar 23 16:29:41 2017 +0000
Revision:
0:64df7fc091da
Coap Server ported from Arduino microcoap

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rfrenken 0:64df7fc091da 1 #include "mbed.h"
rfrenken 0:64df7fc091da 2 #include <stdbool.h>
rfrenken 0:64df7fc091da 3 #include <string.h>
rfrenken 0:64df7fc091da 4
rfrenken 0:64df7fc091da 5 #include "coap.h"
rfrenken 0:64df7fc091da 6
rfrenken 0:64df7fc091da 7 static char light = '0';
rfrenken 0:64df7fc091da 8 static char led0 = '0';
rfrenken 0:64df7fc091da 9 static char led1 = '0';
rfrenken 0:64df7fc091da 10 static char led2 = '0';
rfrenken 0:64df7fc091da 11 static char led3 = '0';
rfrenken 0:64df7fc091da 12 DigitalOut myled(LED1);
rfrenken 0:64df7fc091da 13 DigitalOut myled1(LED2);
rfrenken 0:64df7fc091da 14 DigitalOut myled2(LED3);
rfrenken 0:64df7fc091da 15 DigitalOut myled3(LED4);
rfrenken 0:64df7fc091da 16
rfrenken 0:64df7fc091da 17 const uint16_t rsplen = 1500;
rfrenken 0:64df7fc091da 18 static char rsp[1500] = "";
rfrenken 0:64df7fc091da 19 void build_rsp(void);
rfrenken 0:64df7fc091da 20
rfrenken 0:64df7fc091da 21 #include <stdio.h>
rfrenken 0:64df7fc091da 22 void endpoint_setup(void)
rfrenken 0:64df7fc091da 23 {
rfrenken 0:64df7fc091da 24 build_rsp();
rfrenken 0:64df7fc091da 25 }
rfrenken 0:64df7fc091da 26
rfrenken 0:64df7fc091da 27 static const coap_endpoint_path_t path_well_known_core = {2, {".well-known", "core"}};
rfrenken 0:64df7fc091da 28 static int handle_get_well_known_core(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 29 {
rfrenken 0:64df7fc091da 30 return coap_make_response(scratch, outpkt, (const uint8_t *)rsp, strlen(rsp), id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT, COAP_CONTENTTYPE_APPLICATION_LINKFORMAT);
rfrenken 0:64df7fc091da 31 }
rfrenken 0:64df7fc091da 32
rfrenken 0:64df7fc091da 33 static const coap_endpoint_path_t path_light = {1, {"light"}};
rfrenken 0:64df7fc091da 34
rfrenken 0:64df7fc091da 35 static const coap_endpoint_path_t path_led0 = {2, {"led", "0"}};
rfrenken 0:64df7fc091da 36
rfrenken 0:64df7fc091da 37 static const coap_endpoint_path_t path_led1 = {2, {"led", "1"}};
rfrenken 0:64df7fc091da 38
rfrenken 0:64df7fc091da 39 static const coap_endpoint_path_t path_led2 = {2, {"led", "2"}};
rfrenken 0:64df7fc091da 40
rfrenken 0:64df7fc091da 41 static const coap_endpoint_path_t path_led3 = {2, {"led", "3"}};
rfrenken 0:64df7fc091da 42
rfrenken 0:64df7fc091da 43 static int handle_get_light(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 44 {
rfrenken 0:64df7fc091da 45 return coap_make_response(scratch, outpkt, (const uint8_t *)&light, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 46 }
rfrenken 0:64df7fc091da 47
rfrenken 0:64df7fc091da 48 static int handle_get_led0(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 49 {
rfrenken 0:64df7fc091da 50 return coap_make_response(scratch, outpkt, (const uint8_t *)&led0, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 51 }
rfrenken 0:64df7fc091da 52
rfrenken 0:64df7fc091da 53 static int handle_get_led1(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 54 {
rfrenken 0:64df7fc091da 55 return coap_make_response(scratch, outpkt, (const uint8_t *)&led1, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 56 }
rfrenken 0:64df7fc091da 57
rfrenken 0:64df7fc091da 58 static int handle_get_led2(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 59 {
rfrenken 0:64df7fc091da 60 return coap_make_response(scratch, outpkt, (const uint8_t *)&led2, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 61 }
rfrenken 0:64df7fc091da 62
rfrenken 0:64df7fc091da 63 static int handle_get_led3(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 64 {
rfrenken 0:64df7fc091da 65 return coap_make_response(scratch, outpkt, (const uint8_t *)&led3, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 66 }
rfrenken 0:64df7fc091da 67
rfrenken 0:64df7fc091da 68 static int handle_put_light(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 69 {
rfrenken 0:64df7fc091da 70 if (inpkt->payload.len == 0)
rfrenken 0:64df7fc091da 71 return coap_make_response(scratch, outpkt, NULL, 0, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_BAD_REQUEST, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 72 if (inpkt->payload.p[0] == '1')
rfrenken 0:64df7fc091da 73 {
rfrenken 0:64df7fc091da 74 light = '1';
rfrenken 0:64df7fc091da 75 #ifdef ARDUINO
rfrenken 0:64df7fc091da 76 digitalWrite(led, HIGH);
rfrenken 0:64df7fc091da 77 #else
rfrenken 0:64df7fc091da 78 myled = 1;
rfrenken 0:64df7fc091da 79 printf("ON\n");
rfrenken 0:64df7fc091da 80 #endif
rfrenken 0:64df7fc091da 81 return coap_make_response(scratch, outpkt, (const uint8_t *)&light, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 82 }
rfrenken 0:64df7fc091da 83 else
rfrenken 0:64df7fc091da 84 {
rfrenken 0:64df7fc091da 85 light = '0';
rfrenken 0:64df7fc091da 86 #ifdef ARDUINO
rfrenken 0:64df7fc091da 87 digitalWrite(led, LOW);
rfrenken 0:64df7fc091da 88 #else
rfrenken 0:64df7fc091da 89 myled = 0;
rfrenken 0:64df7fc091da 90 printf("OFF\n");
rfrenken 0:64df7fc091da 91 #endif
rfrenken 0:64df7fc091da 92 return coap_make_response(scratch, outpkt, (const uint8_t *)&light, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 93 }
rfrenken 0:64df7fc091da 94 }
rfrenken 0:64df7fc091da 95
rfrenken 0:64df7fc091da 96 static int handle_put_led0(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 97 {
rfrenken 0:64df7fc091da 98 if (inpkt->payload.len == 0)
rfrenken 0:64df7fc091da 99 return coap_make_response(scratch, outpkt, NULL, 0, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_BAD_REQUEST, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 100 if (inpkt->payload.p[0] == '1')
rfrenken 0:64df7fc091da 101 {
rfrenken 0:64df7fc091da 102 led0 = '1';
rfrenken 0:64df7fc091da 103 myled = 1;
rfrenken 0:64df7fc091da 104 printf("ON\n");
rfrenken 0:64df7fc091da 105 return coap_make_response(scratch, outpkt, (const uint8_t *)&led0, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 106 }
rfrenken 0:64df7fc091da 107 else
rfrenken 0:64df7fc091da 108 {
rfrenken 0:64df7fc091da 109 led0 = '0';
rfrenken 0:64df7fc091da 110 myled = 0;
rfrenken 0:64df7fc091da 111 printf("OFF\n");
rfrenken 0:64df7fc091da 112 return coap_make_response(scratch, outpkt, (const uint8_t *)&led0, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 113 }
rfrenken 0:64df7fc091da 114 }
rfrenken 0:64df7fc091da 115
rfrenken 0:64df7fc091da 116 static int handle_put_led1(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 117 {
rfrenken 0:64df7fc091da 118 if (inpkt->payload.len == 0)
rfrenken 0:64df7fc091da 119 return coap_make_response(scratch, outpkt, NULL, 0, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_BAD_REQUEST, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 120 if (inpkt->payload.p[0] == '1')
rfrenken 0:64df7fc091da 121 {
rfrenken 0:64df7fc091da 122 led1 = '1';
rfrenken 0:64df7fc091da 123 myled1 = 1;
rfrenken 0:64df7fc091da 124 printf("ON\n");
rfrenken 0:64df7fc091da 125 return coap_make_response(scratch, outpkt, (const uint8_t *)&led1, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 126 }
rfrenken 0:64df7fc091da 127 else
rfrenken 0:64df7fc091da 128 {
rfrenken 0:64df7fc091da 129 led1 = '0';
rfrenken 0:64df7fc091da 130 myled1 = 0;
rfrenken 0:64df7fc091da 131 printf("OFF\n");
rfrenken 0:64df7fc091da 132 return coap_make_response(scratch, outpkt, (const uint8_t *)&led1, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 133 }
rfrenken 0:64df7fc091da 134 }
rfrenken 0:64df7fc091da 135
rfrenken 0:64df7fc091da 136 static int handle_put_led2(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 137 {
rfrenken 0:64df7fc091da 138 if (inpkt->payload.len == 0)
rfrenken 0:64df7fc091da 139 return coap_make_response(scratch, outpkt, NULL, 0, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_BAD_REQUEST, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 140 if (inpkt->payload.p[0] == '1')
rfrenken 0:64df7fc091da 141 {
rfrenken 0:64df7fc091da 142 led2 = '1';
rfrenken 0:64df7fc091da 143 myled2 = 1;
rfrenken 0:64df7fc091da 144 printf("ON\n");
rfrenken 0:64df7fc091da 145 return coap_make_response(scratch, outpkt, (const uint8_t *)&led2, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 146 }
rfrenken 0:64df7fc091da 147 else
rfrenken 0:64df7fc091da 148 {
rfrenken 0:64df7fc091da 149 led2 = '0';
rfrenken 0:64df7fc091da 150 myled2 = 0;
rfrenken 0:64df7fc091da 151 printf("OFF\n");
rfrenken 0:64df7fc091da 152 return coap_make_response(scratch, outpkt, (const uint8_t *)&led2, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 153 }
rfrenken 0:64df7fc091da 154 }
rfrenken 0:64df7fc091da 155
rfrenken 0:64df7fc091da 156 static int handle_put_led3(coap_rw_buffer_t *scratch, const coap_packet_t *inpkt, coap_packet_t *outpkt, uint8_t id_hi, uint8_t id_lo)
rfrenken 0:64df7fc091da 157 {
rfrenken 0:64df7fc091da 158 if (inpkt->payload.len == 0)
rfrenken 0:64df7fc091da 159 return coap_make_response(scratch, outpkt, NULL, 0, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_BAD_REQUEST, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 160 if (inpkt->payload.p[0] == '1')
rfrenken 0:64df7fc091da 161 {
rfrenken 0:64df7fc091da 162 led3 = '1';
rfrenken 0:64df7fc091da 163 myled3 = 1;
rfrenken 0:64df7fc091da 164 printf("ON\n");
rfrenken 0:64df7fc091da 165 return coap_make_response(scratch, outpkt, (const uint8_t *)&led3, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 166 }
rfrenken 0:64df7fc091da 167 else
rfrenken 0:64df7fc091da 168 {
rfrenken 0:64df7fc091da 169 led3 = '0';
rfrenken 0:64df7fc091da 170 myled3 = 0;
rfrenken 0:64df7fc091da 171 printf("OFF\n");
rfrenken 0:64df7fc091da 172 return coap_make_response(scratch, outpkt, (const uint8_t *)&led3, 1, id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CHANGED, COAP_CONTENTTYPE_TEXT_PLAIN);
rfrenken 0:64df7fc091da 173 }
rfrenken 0:64df7fc091da 174 }
rfrenken 0:64df7fc091da 175
rfrenken 0:64df7fc091da 176
rfrenken 0:64df7fc091da 177
rfrenken 0:64df7fc091da 178 const coap_endpoint_t endpoints[] =
rfrenken 0:64df7fc091da 179 {
rfrenken 0:64df7fc091da 180 {COAP_METHOD_GET, handle_get_well_known_core, &path_well_known_core, "ct=40"},
rfrenken 0:64df7fc091da 181 {COAP_METHOD_GET, handle_get_light, &path_light, "ct=0"},
rfrenken 0:64df7fc091da 182 {COAP_METHOD_PUT, handle_put_light, &path_light, NULL},
rfrenken 0:64df7fc091da 183 {COAP_METHOD_GET, handle_get_led0, &path_led0, "ct=0"},
rfrenken 0:64df7fc091da 184 {COAP_METHOD_PUT, handle_put_led0, &path_led0, NULL},
rfrenken 0:64df7fc091da 185 {COAP_METHOD_GET, handle_get_led1, &path_led1, "ct=0"},
rfrenken 0:64df7fc091da 186 {COAP_METHOD_PUT, handle_put_led1, &path_led1, NULL},
rfrenken 0:64df7fc091da 187 {COAP_METHOD_GET, handle_get_led2, &path_led2, "ct=0"},
rfrenken 0:64df7fc091da 188 {COAP_METHOD_PUT, handle_put_led2, &path_led2, NULL},
rfrenken 0:64df7fc091da 189 {COAP_METHOD_GET, handle_get_led3, &path_led3, "ct=0"},
rfrenken 0:64df7fc091da 190 {COAP_METHOD_PUT, handle_put_led3, &path_led3, NULL},
rfrenken 0:64df7fc091da 191 {(coap_method_t)0, NULL, NULL, NULL}
rfrenken 0:64df7fc091da 192 };
rfrenken 0:64df7fc091da 193
rfrenken 0:64df7fc091da 194 void build_rsp(void)
rfrenken 0:64df7fc091da 195 {
rfrenken 0:64df7fc091da 196 uint16_t len = rsplen;
rfrenken 0:64df7fc091da 197 const coap_endpoint_t *ep = endpoints;
rfrenken 0:64df7fc091da 198 int i;
rfrenken 0:64df7fc091da 199
rfrenken 0:64df7fc091da 200 len--; // Null-terminated string
rfrenken 0:64df7fc091da 201
rfrenken 0:64df7fc091da 202 while(NULL != ep->handler)
rfrenken 0:64df7fc091da 203 {
rfrenken 0:64df7fc091da 204 if (NULL == ep->core_attr) {
rfrenken 0:64df7fc091da 205 ep++;
rfrenken 0:64df7fc091da 206 continue;
rfrenken 0:64df7fc091da 207 }
rfrenken 0:64df7fc091da 208
rfrenken 0:64df7fc091da 209 if (0 < strlen(rsp)) {
rfrenken 0:64df7fc091da 210 strncat(rsp, ",", len);
rfrenken 0:64df7fc091da 211 len--;
rfrenken 0:64df7fc091da 212 }
rfrenken 0:64df7fc091da 213
rfrenken 0:64df7fc091da 214 strncat(rsp, "<", len);
rfrenken 0:64df7fc091da 215 len--;
rfrenken 0:64df7fc091da 216
rfrenken 0:64df7fc091da 217 for (i = 0; i < ep->path->count; i++) {
rfrenken 0:64df7fc091da 218 strncat(rsp, "/", len);
rfrenken 0:64df7fc091da 219 len--;
rfrenken 0:64df7fc091da 220
rfrenken 0:64df7fc091da 221 strncat(rsp, ep->path->elems[i], len);
rfrenken 0:64df7fc091da 222 len -= strlen(ep->path->elems[i]);
rfrenken 0:64df7fc091da 223 }
rfrenken 0:64df7fc091da 224
rfrenken 0:64df7fc091da 225 strncat(rsp, ">;", len);
rfrenken 0:64df7fc091da 226 len -= 2;
rfrenken 0:64df7fc091da 227
rfrenken 0:64df7fc091da 228 strncat(rsp, ep->core_attr, len);
rfrenken 0:64df7fc091da 229 len -= strlen(ep->core_attr);
rfrenken 0:64df7fc091da 230
rfrenken 0:64df7fc091da 231 ep++;
rfrenken 0:64df7fc091da 232 }
rfrenken 0:64df7fc091da 233 }
rfrenken 0:64df7fc091da 234