Patrick Barrett / libexositecoap

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

src/exosite.c@17:661d4a5b7c1b, 2015-01-04 (annotated)

Committer:
Patrick Barrett
Date:
Sun Jan 04 12:14:33 2015 -0600
Revision:
17:661d4a5b7c1b
Parent:
16:c8abe6b916b4
Child:
18:c463fb80d81d
reorganize again, much less repeated code now

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Patrick Barrett 0:c7393ae16c16 1 /*****************************************************************************
Patrick Barrett 0:c7393ae16c16 2 *
Patrick Barrett 0:c7393ae16c16 3 * exosite.c - Exosite Activator Library
Patrick Barrett 0:c7393ae16c16 4 * Copyright (C) 2015 Exosite LLC
Patrick Barrett 0:c7393ae16c16 5 *
Patrick Barrett 0:c7393ae16c16 6 * Redistribution and use in source and binary forms, with or without
Patrick Barrett 0:c7393ae16c16 7 * modification, are permitted provided that the following conditions
Patrick Barrett 0:c7393ae16c16 8 * are met:
Patrick Barrett 0:c7393ae16c16 9 *
Patrick Barrett 0:c7393ae16c16 10 * Redistributions of source code must retain the above copyright
Patrick Barrett 0:c7393ae16c16 11 * notice, this list of conditions and the following disclaimer.
Patrick Barrett 0:c7393ae16c16 12 *
Patrick Barrett 0:c7393ae16c16 13 * Redistributions in binary form must reproduce the above copyright
Patrick Barrett 0:c7393ae16c16 14 * notice, this list of conditions and the following disclaimer in the
Patrick Barrett 0:c7393ae16c16 15 * documentation and/or other materials provided with the
Patrick Barrett 0:c7393ae16c16 16 * distribution.
Patrick Barrett 0:c7393ae16c16 17 *
Patrick Barrett 0:c7393ae16c16 18 * Neither the name of Texas Instruments Incorporated nor the names of
Patrick Barrett 0:c7393ae16c16 19 * its contributors may be used to endorse or promote products derived
Patrick Barrett 0:c7393ae16c16 20 * from this software without specific prior written permission.
Patrick Barrett 0:c7393ae16c16 21 *
Patrick Barrett 0:c7393ae16c16 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
Patrick Barrett 0:c7393ae16c16 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
Patrick Barrett 0:c7393ae16c16 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
Patrick Barrett 0:c7393ae16c16 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
Patrick Barrett 0:c7393ae16c16 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
Patrick Barrett 0:c7393ae16c16 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
Patrick Barrett 0:c7393ae16c16 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
Patrick Barrett 0:c7393ae16c16 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
Patrick Barrett 0:c7393ae16c16 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Patrick Barrett 0:c7393ae16c16 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Patrick Barrett 0:c7393ae16c16 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Patrick Barrett 0:c7393ae16c16 33 *
Patrick Barrett 0:c7393ae16c16 34 *****************************************************************************/
Patrick Barrett 0:c7393ae16c16 35 #include "exosite_pal.h"
Patrick Barrett 0:c7393ae16c16 36 #include "exosite.h"
Patrick Barrett 0:c7393ae16c16 37 #include "coap.h"
Patrick Barrett 0:c7393ae16c16 38
Patrick Barrett 0:c7393ae16c16 39 #include <stdlib.h>
Patrick Barrett 0:c7393ae16c16 40 #include <stdbool.h>
Patrick Barrett 0:c7393ae16c16 41 #include <time.h>
Patrick Barrett 0:c7393ae16c16 42 #include <string.h>
Patrick Barrett 0:c7393ae16c16 43 #include <ctype.h>
Patrick Barrett 0:c7393ae16c16 44
Patrick Barrett 0:c7393ae16c16 45 // Internal Functions
Patrick Barrett 12:68513d2aa2df 46
Patrick Barrett 12:68513d2aa2df 47 static void exo_process_waiting_datagrams(exo_op *op, uint8_t count);
Patrick Barrett 12:68513d2aa2df 48 static void exo_process_active_ops(exo_op *op, uint8_t count);
Patrick Barrett 0:c7393ae16c16 49 exo_error exo_build_msg_activate(coap_pdu *pdu, const char *vendor, const char *model, const char *serial_number);
Patrick Barrett 0:c7393ae16c16 50 exo_error exo_build_msg_read(coap_pdu *pdu, const char *alias);
Patrick Barrett 0:c7393ae16c16 51 exo_error exo_build_msg_observe(coap_pdu *pdu, const char *alias);
Patrick Barrett 0:c7393ae16c16 52 exo_error exo_build_msg_write(coap_pdu *pdu, const char *alias, const char *value);
Patrick Barrett 0:c7393ae16c16 53 exo_error exo_build_msg_rst(coap_pdu *pdu, const uint16_t mid, const uint64_t token, const uint8_t tkl);
Patrick Barrett 0:c7393ae16c16 54 exo_error exo_build_msg_ack(coap_pdu *pdu, const uint16_t mid);
Patrick Barrett 0:c7393ae16c16 55 uint8_t exosite_validate_cik(char *cik);
Patrick Barrett 0:c7393ae16c16 56
Patrick Barrett 0:c7393ae16c16 57 // Local Variables
Patrick Barrett 0:c7393ae16c16 58 static char cik[CIK_LENGTH + 1];
Patrick Barrett 0:c7393ae16c16 59 static const char *vendor;
Patrick Barrett 0:c7393ae16c16 60 static const char *model;
Patrick Barrett 0:c7393ae16c16 61 static const char *serial;
Patrick Barrett 0:c7393ae16c16 62 static uint16_t message_id_counter;
Patrick Barrett 0:c7393ae16c16 63 static exo_device_state device_state = EXO_STATE_UNINITIALIZED;
Patrick Barrett 0:c7393ae16c16 64
Patrick Barrett 0:c7393ae16c16 65 /*!
Patrick Barrett 0:c7393ae16c16 66 * \brief Initializes the Exosite library
Patrick Barrett 0:c7393ae16c16 67 *
Patrick Barrett 0:c7393ae16c16 68 * This **MUST** be called before any other exosite library calls are called.
Patrick Barrett 0:c7393ae16c16 69 *
Patrick Barrett 0:c7393ae16c16 70 * \param[in] *vendor Pointer to string containing the vendor name
Patrick Barrett 0:c7393ae16c16 71 * \param[in] *model Pointer to string containing the model name
Patrick Barrett 0:c7393ae16c16 72 * \param[in] *serial Pointer to string containing the serial number
Patrick Barrett 0:c7393ae16c16 73 *
Patrick Barrett 0:c7393ae16c16 74 * \return EXO_ERROR, EXO_OK on success, else error code
Patrick Barrett 0:c7393ae16c16 75 */
Patrick Barrett 0:c7393ae16c16 76 exo_error exo_init(const char *vendor_in, const char *model_in, const char *serial_in)
Patrick Barrett 0:c7393ae16c16 77 {
Patrick Barrett 0:c7393ae16c16 78 device_state = EXO_STATE_UNINITIALIZED;
Patrick Barrett 0:c7393ae16c16 79
Patrick Barrett 0:c7393ae16c16 80 if (exopal_init() != 0) {
Patrick Barrett 0:c7393ae16c16 81 return EXO_FATAL_ERROR_PAL;
Patrick Barrett 0:c7393ae16c16 82 }
Patrick Barrett 0:c7393ae16c16 83
Patrick Barrett 0:c7393ae16c16 84 srand(time(NULL));
Patrick Barrett 0:c7393ae16c16 85 message_id_counter = rand();
Patrick Barrett 0:c7393ae16c16 86
Patrick Barrett 0:c7393ae16c16 87 serial = serial_in;
Patrick Barrett 0:c7393ae16c16 88 vendor = vendor_in;
Patrick Barrett 0:c7393ae16c16 89 model = model_in;
Patrick Barrett 0:c7393ae16c16 90
Patrick Barrett 0:c7393ae16c16 91 if (exopal_retrieve_cik(cik) > 1){
Patrick Barrett 0:c7393ae16c16 92 return EXO_FATAL_ERROR_PAL;
Patrick Barrett 0:c7393ae16c16 93 } else {
Patrick Barrett 0:c7393ae16c16 94 cik[40] = 0;
Patrick Barrett 0:c7393ae16c16 95 }
Patrick Barrett 0:c7393ae16c16 96
Patrick Barrett 0:c7393ae16c16 97 if (exopal_udp_sock() != 0) {
Patrick Barrett 0:c7393ae16c16 98 return EXO_FATAL_ERROR_PAL;
Patrick Barrett 0:c7393ae16c16 99 }
Patrick Barrett 0:c7393ae16c16 100
Patrick Barrett 0:c7393ae16c16 101 device_state = EXO_STATE_INITIALIZED;
Patrick Barrett 0:c7393ae16c16 102
Patrick Barrett 0:c7393ae16c16 103 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 104 }
Patrick Barrett 0:c7393ae16c16 105
Patrick Barrett 0:c7393ae16c16 106 /*!
Patrick Barrett 0:c7393ae16c16 107 * \brief Queues a Write to the Exosite One Platform
Patrick Barrett 0:c7393ae16c16 108 *
Patrick Barrett 0:c7393ae16c16 109 * Queues a request to write to a dataport.
Patrick Barrett 0:c7393ae16c16 110 *
Patrick Barrett 0:c7393ae16c16 111 * \param[in] *alias Alias of dataport to write to, pointer must remain
Patrick Barrett 0:c7393ae16c16 112 * valid until the request has been sent.
Patrick Barrett 0:c7393ae16c16 113 * \param[in] callback Function pointer to call on success
Patrick Barrett 0:c7393ae16c16 114 *
Patrick Barrett 0:c7393ae16c16 115 * \return EXO_ERROR, EXO_OK on success or error code
Patrick Barrett 0:c7393ae16c16 116 *
Patrick Barrett 0:c7393ae16c16 117 */
Patrick Barrett 0:c7393ae16c16 118
Patrick Barrett 0:c7393ae16c16 119 void exo_write(exo_op *op, const char * alias, const char * value)
Patrick Barrett 0:c7393ae16c16 120 {
Patrick Barrett 0:c7393ae16c16 121 op->type = EXO_WRITE;
Patrick Barrett 0:c7393ae16c16 122 op->state = EXO_REQUEST_NEW;
Patrick Barrett 0:c7393ae16c16 123 op->alias = alias;
Patrick Barrett 0:c7393ae16c16 124 op->value = (char *)value; // this is kinda dirty, I know
Patrick Barrett 0:c7393ae16c16 125 op->value_max = 0;
Patrick Barrett 0:c7393ae16c16 126 op->mid = 0;
Patrick Barrett 0:c7393ae16c16 127 }
Patrick Barrett 0:c7393ae16c16 128
Patrick Barrett 0:c7393ae16c16 129 /*!
Patrick Barrett 0:c7393ae16c16 130 * \brief Queues a Read from the Exosite One Platform
Patrick Barrett 0:c7393ae16c16 131 *
Patrick Barrett 0:c7393ae16c16 132 * Queues a request to read a dataport. If the request is successful, the
Patrick Barrett 0:c7393ae16c16 133 * provided callback will be called with a single parameter, a pointer to the
Patrick Barrett 0:c7393ae16c16 134 * result as a C string.
Patrick Barrett 0:c7393ae16c16 135 *
Patrick Barrett 0:c7393ae16c16 136 * \param[in] *alias Alias of dataport to read from, pointer must remain
Patrick Barrett 0:c7393ae16c16 137 * valid until the request has been sent.
Patrick Barrett 0:c7393ae16c16 138 * \param[in] callback Function pointer to call on success
Patrick Barrett 0:c7393ae16c16 139 *
Patrick Barrett 0:c7393ae16c16 140 * \return EXO_ERROR, EXO_OK on success or error code
Patrick Barrett 0:c7393ae16c16 141 *
Patrick Barrett 0:c7393ae16c16 142 */
Patrick Barrett 0:c7393ae16c16 143 void exo_read(exo_op *op, const char * alias, char * value, const size_t value_max)
Patrick Barrett 0:c7393ae16c16 144 {
Patrick Barrett 0:c7393ae16c16 145 op->type = EXO_READ;
Patrick Barrett 0:c7393ae16c16 146 op->state = EXO_REQUEST_NEW;
Patrick Barrett 0:c7393ae16c16 147 op->alias = alias;
Patrick Barrett 0:c7393ae16c16 148 op->value = value;
Patrick Barrett 0:c7393ae16c16 149 op->value_max = value_max;
Patrick Barrett 0:c7393ae16c16 150 op->mid = 0;
Patrick Barrett 0:c7393ae16c16 151 }
Patrick Barrett 0:c7393ae16c16 152
Patrick Barrett 0:c7393ae16c16 153 /*!
Patrick Barrett 0:c7393ae16c16 154 * \brief Subscribes to a Dataport on the Exosite One Platform
Patrick Barrett 0:c7393ae16c16 155 *
Patrick Barrett 0:c7393ae16c16 156 * Begins a subscription to a dataport The callback is called any time the
Patrick Barrett 0:c7393ae16c16 157 * value is updated as well as when the subscription is started.
Patrick Barrett 0:c7393ae16c16 158 *
Patrick Barrett 0:c7393ae16c16 159 * \param[in] alias Alias of dataport to read from
Patrick Barrett 0:c7393ae16c16 160 * \param[in] callback Function pointer to call on change
Patrick Barrett 0:c7393ae16c16 161 *
Patrick Barrett 0:c7393ae16c16 162 * \return EXO_ERROR, EXO_OK on success or error code
Patrick Barrett 0:c7393ae16c16 163 *
Patrick Barrett 0:c7393ae16c16 164 */
Patrick Barrett 0:c7393ae16c16 165 void exo_subscribe(exo_op *op, const char * alias, char * value, const size_t value_max)
Patrick Barrett 0:c7393ae16c16 166 {
Patrick Barrett 0:c7393ae16c16 167 op->type = EXO_SUBSCRIBE;
Patrick Barrett 0:c7393ae16c16 168 op->state = EXO_REQUEST_NEW;
Patrick Barrett 0:c7393ae16c16 169 op->alias = alias;
Patrick Barrett 0:c7393ae16c16 170 op->value = value;
Patrick Barrett 0:c7393ae16c16 171 op->value_max = value_max;
Patrick Barrett 0:c7393ae16c16 172 op->mid = 0;
Patrick Barrett 0:c7393ae16c16 173 }
Patrick Barrett 0:c7393ae16c16 174
Patrick Barrett 11:08bae8fb9824 175 /*!
Patrick Barrett 11:08bae8fb9824 176 * \brief Activates the Device on the Platform
Patrick Barrett 11:08bae8fb9824 177 *
Patrick Barrett 11:08bae8fb9824 178 * Queues an activation request. Usually only used internally.
Patrick Barrett 11:08bae8fb9824 179 *
Patrick Barrett 11:08bae8fb9824 180 */
Patrick Barrett 11:08bae8fb9824 181 void exo_activate(exo_op *op)
Patrick Barrett 11:08bae8fb9824 182 {
Patrick Barrett 11:08bae8fb9824 183 op->type = EXO_ACTIVATE;
Patrick Barrett 11:08bae8fb9824 184 op->state = EXO_REQUEST_NEW;
Patrick Barrett 11:08bae8fb9824 185 op->alias = NULL;
Patrick Barrett 11:08bae8fb9824 186 op->value = NULL;
Patrick Barrett 11:08bae8fb9824 187 op->value_max = 0;
Patrick Barrett 11:08bae8fb9824 188 op->mid = 0;
Patrick Barrett 11:08bae8fb9824 189 }
Patrick Barrett 11:08bae8fb9824 190
Patrick Barrett 0:c7393ae16c16 191 void exo_op_init(exo_op *op)
Patrick Barrett 0:c7393ae16c16 192 {
Patrick Barrett 0:c7393ae16c16 193 op->type = EXO_NULL;
Patrick Barrett 0:c7393ae16c16 194 op->state = EXO_REQUEST_NULL;
Patrick Barrett 0:c7393ae16c16 195 op->alias = NULL;
Patrick Barrett 0:c7393ae16c16 196 op->value = NULL;
Patrick Barrett 0:c7393ae16c16 197 op->value_max = 0;
Patrick Barrett 0:c7393ae16c16 198 op->mid = 0;
Patrick Barrett 10:76deeaebfafb 199 op->obs_seq = 0;
Patrick Barrett 13:df08a86dc06d 200 op->timeout = 0;
Patrick Barrett 0:c7393ae16c16 201 }
Patrick Barrett 0:c7393ae16c16 202
Patrick Barrett 0:c7393ae16c16 203 void exo_op_done(exo_op *op)
Patrick Barrett 0:c7393ae16c16 204 {
Patrick Barrett 0:c7393ae16c16 205 if (exo_is_op_subscribe(op)) {
Patrick Barrett 0:c7393ae16c16 206 op->state = EXO_REQUEST_SUBSCRIBED;
Patrick Barrett 0:c7393ae16c16 207 } else {
Patrick Barrett 0:c7393ae16c16 208 exo_op_init(op);
Patrick Barrett 0:c7393ae16c16 209 }
Patrick Barrett 0:c7393ae16c16 210 }
Patrick Barrett 0:c7393ae16c16 211
Patrick Barrett 0:c7393ae16c16 212 uint8_t exo_is_op_valid(exo_op *op)
Patrick Barrett 0:c7393ae16c16 213 {
Patrick Barrett 0:c7393ae16c16 214 return op->type != EXO_NULL;
Patrick Barrett 0:c7393ae16c16 215 }
Patrick Barrett 0:c7393ae16c16 216
Patrick Barrett 0:c7393ae16c16 217 uint8_t exo_is_op_success(exo_op *op)
Patrick Barrett 0:c7393ae16c16 218 {
Patrick Barrett 0:c7393ae16c16 219 return op->state == EXO_REQUEST_SUCCESS;
Patrick Barrett 0:c7393ae16c16 220 }
Patrick Barrett 0:c7393ae16c16 221
Patrick Barrett 0:c7393ae16c16 222 uint8_t exo_is_op_finished(exo_op *op)
Patrick Barrett 0:c7393ae16c16 223 {
Patrick Barrett 0:c7393ae16c16 224 return op->state == EXO_REQUEST_SUCCESS || op->state == EXO_REQUEST_ERROR;
Patrick Barrett 0:c7393ae16c16 225 }
Patrick Barrett 0:c7393ae16c16 226
Patrick Barrett 0:c7393ae16c16 227 uint8_t exo_is_op_read(exo_op *op)
Patrick Barrett 0:c7393ae16c16 228 {
Patrick Barrett 0:c7393ae16c16 229 return op->type == EXO_READ;
Patrick Barrett 0:c7393ae16c16 230 }
Patrick Barrett 0:c7393ae16c16 231
Patrick Barrett 0:c7393ae16c16 232 uint8_t exo_is_op_subscribe(exo_op *op)
Patrick Barrett 0:c7393ae16c16 233 {
Patrick Barrett 0:c7393ae16c16 234 return op->type == EXO_SUBSCRIBE;
Patrick Barrett 0:c7393ae16c16 235 }
Patrick Barrett 0:c7393ae16c16 236
Patrick Barrett 0:c7393ae16c16 237 uint8_t exo_is_op_write(exo_op *op)
Patrick Barrett 0:c7393ae16c16 238 {
Patrick Barrett 0:c7393ae16c16 239 return op->type == EXO_WRITE;
Patrick Barrett 0:c7393ae16c16 240 }
Patrick Barrett 0:c7393ae16c16 241
Patrick Barrett 0:c7393ae16c16 242
Patrick Barrett 0:c7393ae16c16 243 /*!
Patrick Barrett 0:c7393ae16c16 244 * \brief Performs queued operations with the Exosite One Platform
Patrick Barrett 0:c7393ae16c16 245 *
Patrick Barrett 0:c7393ae16c16 246 * Queues a request to read a dataport from the Exosite One Platform. If the
Patrick Barrett 0:c7393ae16c16 247 * request is successful the provided callback will be called with a single
Patrick Barrett 0:c7393ae16c16 248 * parameter, a pointer to the result as a C string.
Patrick Barrett 0:c7393ae16c16 249 *
Patrick Barrett 0:c7393ae16c16 250 * \param[in] alias Alias of dataport to read from
Patrick Barrett 0:c7393ae16c16 251 * \param[in] callback Function pointer to call on success
Patrick Barrett 0:c7393ae16c16 252 *
Patrick Barrett 0:c7393ae16c16 253 * \return EXO_STATE, EXO_OK on success or error code
Patrick Barrett 0:c7393ae16c16 254 *
Patrick Barrett 0:c7393ae16c16 255 */
Patrick Barrett 0:c7393ae16c16 256 exo_state exo_operate(exo_op *op, uint8_t count)
Patrick Barrett 0:c7393ae16c16 257 {
Patrick Barrett 12:68513d2aa2df 258 int i;
Patrick Barrett 12:68513d2aa2df 259
Patrick Barrett 12:68513d2aa2df 260 switch (device_state){
Patrick Barrett 12:68513d2aa2df 261 case EXO_STATE_UNINITIALIZED:
Patrick Barrett 12:68513d2aa2df 262 return EXO_ERROR;
Patrick Barrett 12:68513d2aa2df 263 case EXO_STATE_INITIALIZED:
Patrick Barrett 12:68513d2aa2df 264 case EXO_STATE_BAD_CIK:
Patrick Barrett 12:68513d2aa2df 265 if (op[0].state == EXO_REQUEST_NULL && op[0].timeout == 0)
Patrick Barrett 12:68513d2aa2df 266 exo_activate(&op[0]);
Patrick Barrett 12:68513d2aa2df 267 case EXO_STATE_GOOD:
Patrick Barrett 12:68513d2aa2df 268 break;
Patrick Barrett 12:68513d2aa2df 269 }
Patrick Barrett 12:68513d2aa2df 270
Patrick Barrett 12:68513d2aa2df 271 exo_process_waiting_datagrams(op, count);
Patrick Barrett 12:68513d2aa2df 272 exo_process_active_ops(op, count);
Patrick Barrett 12:68513d2aa2df 273
Patrick Barrett 12:68513d2aa2df 274 for (i = 0; i < count; i++) {
Patrick Barrett 12:68513d2aa2df 275 if (op[i].state == EXO_REQUEST_NEW)
Patrick Barrett 12:68513d2aa2df 276 return EXO_BUSY;
Patrick Barrett 12:68513d2aa2df 277 }
Patrick Barrett 12:68513d2aa2df 278
Patrick Barrett 12:68513d2aa2df 279 for (i = 0; i < count; i++) {
Patrick Barrett 12:68513d2aa2df 280 if (op[i].state == EXO_REQUEST_PENDING)
Patrick Barrett 12:68513d2aa2df 281 return EXO_WAITING;
Patrick Barrett 12:68513d2aa2df 282 }
Patrick Barrett 12:68513d2aa2df 283
Patrick Barrett 12:68513d2aa2df 284 return EXO_IDLE;
Patrick Barrett 12:68513d2aa2df 285 }
Patrick Barrett 12:68513d2aa2df 286
Patrick Barrett 12:68513d2aa2df 287 // Internal Functions
Patrick Barrett 12:68513d2aa2df 288
Patrick Barrett 12:68513d2aa2df 289 static void exo_process_waiting_datagrams(exo_op *op, uint8_t count)
Patrick Barrett 12:68513d2aa2df 290 {
Patrick Barrett 0:c7393ae16c16 291 uint8_t buf[576];
Patrick Barrett 0:c7393ae16c16 292 coap_pdu pdu;
Patrick Barrett 0:c7393ae16c16 293 coap_payload payload;
Patrick Barrett 0:c7393ae16c16 294 int i;
Patrick Barrett 0:c7393ae16c16 295
Patrick Barrett 0:c7393ae16c16 296 pdu.buf = buf;
Patrick Barrett 0:c7393ae16c16 297 pdu.max = 576;
Patrick Barrett 0:c7393ae16c16 298 pdu.len = 0;
Patrick Barrett 0:c7393ae16c16 299
Patrick Barrett 0:c7393ae16c16 300 // receive a UDP packet if one or more waiting
Patrick Barrett 0:c7393ae16c16 301 while (exopal_udp_recv(pdu.buf, pdu.max, &pdu.len) == 0) {
Patrick Barrett 0:c7393ae16c16 302 if (coap_validate_pkt(&pdu) != CE_NONE)
Patrick Barrett 0:c7393ae16c16 303 continue; //Invalid Packet, Ignore
Patrick Barrett 0:c7393ae16c16 304
Patrick Barrett 0:c7393ae16c16 305 for (i = 0; i < count; i++) {
Patrick Barrett 17:661d4a5b7c1b 306 if (coap_get_type(&pdu) == CT_CON || coap_get_type(&pdu) == CT_NON) {
Patrick Barrett 17:661d4a5b7c1b 307 if(op[i].state == EXO_REQUEST_SUBSCRIBED && coap_get_token(&pdu) == op[i].token) {
Patrick Barrett 13:df08a86dc06d 308 coap_option opt;
Patrick Barrett 13:df08a86dc06d 309 uint32_t new_seq = 0;
Patrick Barrett 13:df08a86dc06d 310 opt = coap_get_option_by_num(&pdu, CON_OBSERVE, 0);
Patrick Barrett 13:df08a86dc06d 311 for (int j = 0; j < opt.len; j++) {
Patrick Barrett 13:df08a86dc06d 312 new_seq = (new_seq << (8*j)) | opt.val[j];
Patrick Barrett 0:c7393ae16c16 313 }
Patrick Barrett 13:df08a86dc06d 314
Patrick Barrett 13:df08a86dc06d 315 payload = coap_get_payload(&pdu);
Patrick Barrett 13:df08a86dc06d 316 if (payload.len == 0) {
Patrick Barrett 16:c8abe6b916b4 317 op[i].value[0] = '\0';
Patrick Barrett 13:df08a86dc06d 318 } else if (payload.len+1 > op[i].value_max || op[i].value == 0) {
Patrick Barrett 13:df08a86dc06d 319 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 13:df08a86dc06d 320 } else{
Patrick Barrett 13:df08a86dc06d 321 memcpy(op[i].value, payload.val, payload.len);
Patrick Barrett 13:df08a86dc06d 322 op[i].value[payload.len] = 0;
Patrick Barrett 13:df08a86dc06d 323 op[i].mid = coap_get_mid(&pdu);
Patrick Barrett 13:df08a86dc06d 324 // TODO: User proper logic to ensure it's a new value not a different, but old one.
Patrick Barrett 13:df08a86dc06d 325 if (op[i].obs_seq != new_seq) {
Patrick Barrett 13:df08a86dc06d 326 op[i].state = EXO_REQUEST_SUB_ACK_NEW;
Patrick Barrett 13:df08a86dc06d 327 op[i].obs_seq = new_seq;
Patrick Barrett 13:df08a86dc06d 328 } else {
Patrick Barrett 13:df08a86dc06d 329 op[i].state = EXO_REQUEST_SUB_ACK;
Patrick Barrett 13:df08a86dc06d 330 }
Patrick Barrett 11:08bae8fb9824 331 }
Patrick Barrett 13:df08a86dc06d 332 break;
Patrick Barrett 0:c7393ae16c16 333 }
Patrick Barrett 17:661d4a5b7c1b 334 } else if (coap_get_type(&pdu) == CT_ACK) {
Patrick Barrett 13:df08a86dc06d 335 if (op[i].state == EXO_REQUEST_PENDING && op[i].mid == coap_get_mid(&pdu)) {
Patrick Barrett 13:df08a86dc06d 336 if (coap_get_code_class(&pdu) == 2) {
Patrick Barrett 17:661d4a5b7c1b 337 switch (op[i].type) {
Patrick Barrett 17:661d4a5b7c1b 338 case EXO_WRITE:
Patrick Barrett 17:661d4a5b7c1b 339 op[i].state = EXO_REQUEST_SUCCESS;
Patrick Barrett 17:661d4a5b7c1b 340 break;
Patrick Barrett 17:661d4a5b7c1b 341 case EXO_READ:
Patrick Barrett 17:661d4a5b7c1b 342 payload = coap_get_payload(&pdu);
Patrick Barrett 17:661d4a5b7c1b 343 if (payload.len == 0) {
Patrick Barrett 17:661d4a5b7c1b 344 op[i].value[0] = '\0';
Patrick Barrett 17:661d4a5b7c1b 345 } else if (payload.len+1 > op[i].value_max || op[i].value == 0) {
Patrick Barrett 17:661d4a5b7c1b 346 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 17:661d4a5b7c1b 347 } else{
Patrick Barrett 17:661d4a5b7c1b 348 memcpy(op[i].value, payload.val, payload.len);
Patrick Barrett 17:661d4a5b7c1b 349 op[i].value[payload.len] = 0;
Patrick Barrett 17:661d4a5b7c1b 350 op[i].state = EXO_REQUEST_SUCCESS;
Patrick Barrett 17:661d4a5b7c1b 351 }
Patrick Barrett 17:661d4a5b7c1b 352 break;
Patrick Barrett 17:661d4a5b7c1b 353 case EXO_SUBSCRIBE:
Patrick Barrett 17:661d4a5b7c1b 354 payload = coap_get_payload(&pdu);
Patrick Barrett 17:661d4a5b7c1b 355 if (payload.len == 0) {
Patrick Barrett 17:661d4a5b7c1b 356 op[i].value[0] = '\0';
Patrick Barrett 17:661d4a5b7c1b 357 } else if (payload.len+1 > op[i].value_max || op[i].value == 0) {
Patrick Barrett 17:661d4a5b7c1b 358 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 17:661d4a5b7c1b 359 } else{
Patrick Barrett 17:661d4a5b7c1b 360 memcpy(op[i].value, payload.val, payload.len);
Patrick Barrett 17:661d4a5b7c1b 361 op[i].value[payload.len] = 0;
Patrick Barrett 17:661d4a5b7c1b 362 op[i].state = EXO_REQUEST_SUCCESS;
Patrick Barrett 17:661d4a5b7c1b 363 op[i].timeout = exopal_get_time() + 120000000 + (rand() % 15 * 100000);
Patrick Barrett 17:661d4a5b7c1b 364 }
Patrick Barrett 17:661d4a5b7c1b 365 break;
Patrick Barrett 17:661d4a5b7c1b 366 case EXO_ACTIVATE:
Patrick Barrett 17:661d4a5b7c1b 367 payload = coap_get_payload(&pdu);
Patrick Barrett 17:661d4a5b7c1b 368 if (payload.len == CIK_LENGTH) {
Patrick Barrett 17:661d4a5b7c1b 369 memcpy(cik, payload.val, CIK_LENGTH);
Patrick Barrett 17:661d4a5b7c1b 370 cik[CIK_LENGTH] = 0;
Patrick Barrett 17:661d4a5b7c1b 371 op[i].state = EXO_REQUEST_SUCCESS;
Patrick Barrett 17:661d4a5b7c1b 372 exopal_store_cik(cik);
Patrick Barrett 17:661d4a5b7c1b 373 device_state = EXO_STATE_GOOD;
Patrick Barrett 17:661d4a5b7c1b 374 } else {
Patrick Barrett 17:661d4a5b7c1b 375 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 17:661d4a5b7c1b 376 }
Patrick Barrett 17:661d4a5b7c1b 377
Patrick Barrett 17:661d4a5b7c1b 378 // We're done with this op now.
Patrick Barrett 17:661d4a5b7c1b 379 exo_op_init(&op[i]);
Patrick Barrett 17:661d4a5b7c1b 380 break;
Patrick Barrett 17:661d4a5b7c1b 381 case EXO_NULL: // pending null request? shouldn't be possible
Patrick Barrett 17:661d4a5b7c1b 382 continue;
Patrick Barrett 13:df08a86dc06d 383 }
Patrick Barrett 13:df08a86dc06d 384 } else {
Patrick Barrett 13:df08a86dc06d 385 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 17:661d4a5b7c1b 386
Patrick Barrett 17:661d4a5b7c1b 387 if (coap_get_code(&pdu) == CC_UNAUTHORIZED){
Patrick Barrett 17:661d4a5b7c1b 388 device_state = EXO_STATE_BAD_CIK;
Patrick Barrett 17:661d4a5b7c1b 389 } else if (coap_get_code(&pdu) == CC_NOT_FOUND) {
Patrick Barrett 17:661d4a5b7c1b 390 device_state = EXO_STATE_GOOD;
Patrick Barrett 17:661d4a5b7c1b 391 }
Patrick Barrett 13:df08a86dc06d 392 }
Patrick Barrett 0:c7393ae16c16 393
Patrick Barrett 17:661d4a5b7c1b 394 break;
Patrick Barrett 17:661d4a5b7c1b 395 }
Patrick Barrett 17:661d4a5b7c1b 396
Patrick Barrett 17:661d4a5b7c1b 397 } else if (coap_get_type(&pdu) == CT_RST) {
Patrick Barrett 17:661d4a5b7c1b 398 if ((op[i].state == EXO_REQUEST_PENDING || op[i].state == EXO_REQUEST_SUBSCRIBED) &&
Patrick Barrett 17:661d4a5b7c1b 399 (op[i].mid == coap_get_mid(&pdu) && op[i].token == coap_get_token(&pdu))){
Patrick Barrett 17:661d4a5b7c1b 400 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 13:df08a86dc06d 401 break;
Patrick Barrett 0:c7393ae16c16 402 }
Patrick Barrett 0:c7393ae16c16 403 }
Patrick Barrett 0:c7393ae16c16 404 }
Patrick Barrett 0:c7393ae16c16 405
Patrick Barrett 13:df08a86dc06d 406 // if the above loop ends normally we don't recognize message, reply RST
Patrick Barrett 0:c7393ae16c16 407 if (i == count){
Patrick Barrett 0:c7393ae16c16 408 if (coap_get_type(&pdu) == CT_CON) {
Patrick Barrett 0:c7393ae16c16 409 // this can't fail
Patrick Barrett 0:c7393ae16c16 410 exo_build_msg_rst(&pdu, coap_get_mid(&pdu), coap_get_token(&pdu), coap_get_tkl(&pdu));
Patrick Barrett 0:c7393ae16c16 411
Patrick Barrett 0:c7393ae16c16 412 // best effort, don't bother checking if it failed, nothing we can do it
Patrick Barrett 0:c7393ae16c16 413 // it did anyway
Patrick Barrett 0:c7393ae16c16 414 exopal_udp_send(pdu.buf, pdu.len);
Patrick Barrett 0:c7393ae16c16 415 }
Patrick Barrett 0:c7393ae16c16 416
Patrick Barrett 0:c7393ae16c16 417 break;
Patrick Barrett 0:c7393ae16c16 418 }
Patrick Barrett 0:c7393ae16c16 419 }
Patrick Barrett 12:68513d2aa2df 420 }
Patrick Barrett 0:c7393ae16c16 421
Patrick Barrett 12:68513d2aa2df 422 // process all ops that are in an active state
Patrick Barrett 12:68513d2aa2df 423 static void exo_process_active_ops(exo_op *op, uint8_t count)
Patrick Barrett 12:68513d2aa2df 424 {
Patrick Barrett 12:68513d2aa2df 425 uint8_t buf[576];
Patrick Barrett 12:68513d2aa2df 426 coap_pdu pdu;
Patrick Barrett 12:68513d2aa2df 427 int i;
Patrick Barrett 12:68513d2aa2df 428 uint64_t now = exopal_get_time();
Patrick Barrett 12:68513d2aa2df 429
Patrick Barrett 12:68513d2aa2df 430 pdu.buf = buf;
Patrick Barrett 12:68513d2aa2df 431 pdu.max = 576;
Patrick Barrett 12:68513d2aa2df 432 pdu.len = 0;
Patrick Barrett 12:68513d2aa2df 433
Patrick Barrett 0:c7393ae16c16 434 for (i = 0; i < count; i++) {
Patrick Barrett 0:c7393ae16c16 435 switch (op[i].state) {
Patrick Barrett 0:c7393ae16c16 436 case EXO_REQUEST_NEW:
Patrick Barrett 0:c7393ae16c16 437 // Build and Send Request
Patrick Barrett 0:c7393ae16c16 438 switch (op[i].type) {
Patrick Barrett 0:c7393ae16c16 439 case EXO_READ:
Patrick Barrett 0:c7393ae16c16 440 exo_build_msg_read(&pdu, op[i].alias);
Patrick Barrett 0:c7393ae16c16 441 break;
Patrick Barrett 0:c7393ae16c16 442 case EXO_SUBSCRIBE:
Patrick Barrett 0:c7393ae16c16 443 exo_build_msg_observe(&pdu, op[i].alias);
Patrick Barrett 0:c7393ae16c16 444 break;
Patrick Barrett 0:c7393ae16c16 445 case EXO_WRITE:
Patrick Barrett 0:c7393ae16c16 446 exo_build_msg_write(&pdu, op[i].alias, op[i].value);
Patrick Barrett 0:c7393ae16c16 447 break;
Patrick Barrett 11:08bae8fb9824 448 case EXO_ACTIVATE:
Patrick Barrett 11:08bae8fb9824 449 exo_build_msg_activate(&pdu, vendor, model, serial);
Patrick Barrett 11:08bae8fb9824 450 break;
Patrick Barrett 0:c7393ae16c16 451 default:
Patrick Barrett 0:c7393ae16c16 452 op[i].type = EXO_NULL;
Patrick Barrett 0:c7393ae16c16 453 continue;
Patrick Barrett 0:c7393ae16c16 454 }
Patrick Barrett 0:c7393ae16c16 455
Patrick Barrett 0:c7393ae16c16 456 if (exopal_udp_send(pdu.buf, pdu.len) == 0) {
Patrick Barrett 0:c7393ae16c16 457 op[i].state = EXO_REQUEST_PENDING;
Patrick Barrett 0:c7393ae16c16 458 op[i].timeout = exopal_get_time() + 4000000;
Patrick Barrett 0:c7393ae16c16 459 op[i].mid = coap_get_mid(&pdu);
Patrick Barrett 0:c7393ae16c16 460 op[i].token = coap_get_token(&pdu);
Patrick Barrett 0:c7393ae16c16 461 }
Patrick Barrett 0:c7393ae16c16 462
Patrick Barrett 0:c7393ae16c16 463 break;
Patrick Barrett 10:76deeaebfafb 464 case EXO_REQUEST_SUBSCRIBED:
Patrick Barrett 0:c7393ae16c16 465 case EXO_REQUEST_PENDING:
Patrick Barrett 0:c7393ae16c16 466 // check if pending requests have reached timeout
Patrick Barrett 0:c7393ae16c16 467 if (op[i].timeout <= now){
Patrick Barrett 0:c7393ae16c16 468 switch (op[i].type) {
Patrick Barrett 0:c7393ae16c16 469 case EXO_READ:
Patrick Barrett 0:c7393ae16c16 470 case EXO_WRITE:
Patrick Barrett 0:c7393ae16c16 471 // TODO: may want to do some sort of retry system
Patrick Barrett 0:c7393ae16c16 472 op[i].state = EXO_REQUEST_ERROR;
Patrick Barrett 0:c7393ae16c16 473 break;
Patrick Barrett 0:c7393ae16c16 474 case EXO_SUBSCRIBE:
Patrick Barrett 0:c7393ae16c16 475 // force a new observe request
Patrick Barrett 0:c7393ae16c16 476 op[i].state = EXO_REQUEST_NEW;
Patrick Barrett 0:c7393ae16c16 477 break;
Patrick Barrett 0:c7393ae16c16 478 default:
Patrick Barrett 0:c7393ae16c16 479 break;
Patrick Barrett 0:c7393ae16c16 480 }
Patrick Barrett 0:c7393ae16c16 481 }
Patrick Barrett 0:c7393ae16c16 482 break;
Patrick Barrett 0:c7393ae16c16 483 case EXO_REQUEST_SUB_ACK_NEW:
Patrick Barrett 0:c7393ae16c16 484 case EXO_REQUEST_SUB_ACK:
Patrick Barrett 0:c7393ae16c16 485 // send ack for observe notification
Patrick Barrett 0:c7393ae16c16 486 exo_build_msg_ack(&pdu, coap_get_mid(&pdu));
Patrick Barrett 0:c7393ae16c16 487
Patrick Barrett 0:c7393ae16c16 488 if (exopal_udp_send(pdu.buf, pdu.len) == 0) {
Patrick Barrett 0:c7393ae16c16 489 if (op[i].state == EXO_REQUEST_SUB_ACK)
Patrick Barrett 0:c7393ae16c16 490 op[i].state = EXO_REQUEST_SUBSCRIBED;
Patrick Barrett 0:c7393ae16c16 491 else if (op[i].state == EXO_REQUEST_SUB_ACK_NEW)
Patrick Barrett 0:c7393ae16c16 492 op[i].state = EXO_REQUEST_SUCCESS;
Patrick Barrett 0:c7393ae16c16 493
Patrick Barrett 0:c7393ae16c16 494 // TODO: this should get set to Max-Age value, hard coding 120 s
Patrick Barrett 10:76deeaebfafb 495 op[i].timeout = exopal_get_time() + 120000000 + (rand() % 15 * 100000);
Patrick Barrett 0:c7393ae16c16 496 }
Patrick Barrett 0:c7393ae16c16 497 break;
Patrick Barrett 0:c7393ae16c16 498 default:
Patrick Barrett 0:c7393ae16c16 499 break;
Patrick Barrett 0:c7393ae16c16 500 }
Patrick Barrett 0:c7393ae16c16 501 }
Patrick Barrett 0:c7393ae16c16 502 }
Patrick Barrett 0:c7393ae16c16 503
Patrick Barrett 0:c7393ae16c16 504
Patrick Barrett 0:c7393ae16c16 505 exo_error exo_build_msg_activate(coap_pdu *pdu, const char *vendor, const char *model, const char *serial_number)
Patrick Barrett 0:c7393ae16c16 506 {
Patrick Barrett 0:c7393ae16c16 507 coap_error ret;
Patrick Barrett 0:c7393ae16c16 508 coap_init_pdu(pdu);
Patrick Barrett 0:c7393ae16c16 509 ret = coap_set_version(pdu, COAP_V1);
Patrick Barrett 0:c7393ae16c16 510 ret |= coap_set_type(pdu, CT_CON);
Patrick Barrett 0:c7393ae16c16 511 ret |= coap_set_code(pdu, CC_POST);
Patrick Barrett 0:c7393ae16c16 512 ret |= coap_set_mid(pdu, message_id_counter++);
Patrick Barrett 0:c7393ae16c16 513 ret |= coap_set_token(pdu, rand(), 2);
Patrick Barrett 0:c7393ae16c16 514 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)"provision", 9);
Patrick Barrett 0:c7393ae16c16 515 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)"activate", 8);
Patrick Barrett 0:c7393ae16c16 516 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)vendor, strlen(vendor));
Patrick Barrett 0:c7393ae16c16 517 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)model, strlen(model));
Patrick Barrett 0:c7393ae16c16 518 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)serial_number, strlen(serial_number));
Patrick Barrett 0:c7393ae16c16 519
Patrick Barrett 0:c7393ae16c16 520 if (ret != CE_NONE)
Patrick Barrett 0:c7393ae16c16 521 return EXO_GENERAL_ERROR;
Patrick Barrett 0:c7393ae16c16 522
Patrick Barrett 0:c7393ae16c16 523 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 524 }
Patrick Barrett 0:c7393ae16c16 525
Patrick Barrett 0:c7393ae16c16 526 exo_error exo_build_msg_read(coap_pdu *pdu, const char *alias)
Patrick Barrett 0:c7393ae16c16 527 {
Patrick Barrett 0:c7393ae16c16 528 coap_error ret;
Patrick Barrett 0:c7393ae16c16 529 coap_init_pdu(pdu);
Patrick Barrett 0:c7393ae16c16 530 ret = coap_set_version(pdu, COAP_V1);
Patrick Barrett 0:c7393ae16c16 531 ret |= coap_set_type(pdu, CT_CON);
Patrick Barrett 0:c7393ae16c16 532 ret |= coap_set_code(pdu, CC_GET);
Patrick Barrett 0:c7393ae16c16 533 ret |= coap_set_mid(pdu, message_id_counter++);
Patrick Barrett 0:c7393ae16c16 534 ret |= coap_set_token(pdu, rand(), 2);
Patrick Barrett 0:c7393ae16c16 535 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)"1a", 2);
Patrick Barrett 0:c7393ae16c16 536 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)alias, strlen(alias));
Patrick Barrett 0:c7393ae16c16 537 ret |= coap_add_option(pdu, CON_URI_QUERY, (uint8_t*)cik, 40);
Patrick Barrett 0:c7393ae16c16 538
Patrick Barrett 0:c7393ae16c16 539 if (ret != CE_NONE)
Patrick Barrett 0:c7393ae16c16 540 return EXO_GENERAL_ERROR;
Patrick Barrett 0:c7393ae16c16 541
Patrick Barrett 0:c7393ae16c16 542 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 543 }
Patrick Barrett 0:c7393ae16c16 544
Patrick Barrett 0:c7393ae16c16 545 exo_error exo_build_msg_observe(coap_pdu *pdu, const char *alias)
Patrick Barrett 0:c7393ae16c16 546 {
Patrick Barrett 0:c7393ae16c16 547 uint8_t obs_opt = 0;
Patrick Barrett 0:c7393ae16c16 548 coap_error ret;
Patrick Barrett 0:c7393ae16c16 549 coap_init_pdu(pdu);
Patrick Barrett 0:c7393ae16c16 550 ret = coap_set_version(pdu, COAP_V1);
Patrick Barrett 0:c7393ae16c16 551 ret |= coap_set_type(pdu, CT_CON);
Patrick Barrett 0:c7393ae16c16 552 ret |= coap_set_code(pdu, CC_GET);
Patrick Barrett 0:c7393ae16c16 553 ret |= coap_set_mid(pdu, message_id_counter++);
Patrick Barrett 0:c7393ae16c16 554 ret |= coap_set_token(pdu, rand(), 2);
Patrick Barrett 0:c7393ae16c16 555 ret |= coap_add_option(pdu, CON_OBSERVE, &obs_opt, 1);
Patrick Barrett 0:c7393ae16c16 556 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)"1a", 2);
Patrick Barrett 0:c7393ae16c16 557 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)alias, strlen(alias));
Patrick Barrett 0:c7393ae16c16 558 ret |= coap_add_option(pdu, CON_URI_QUERY, (uint8_t*)cik, 40);
Patrick Barrett 0:c7393ae16c16 559
Patrick Barrett 0:c7393ae16c16 560 if (ret != CE_NONE)
Patrick Barrett 0:c7393ae16c16 561 return EXO_GENERAL_ERROR;
Patrick Barrett 0:c7393ae16c16 562
Patrick Barrett 0:c7393ae16c16 563 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 564 }
Patrick Barrett 0:c7393ae16c16 565
Patrick Barrett 0:c7393ae16c16 566 exo_error exo_build_msg_write(coap_pdu *pdu, const char *alias, const char *value)
Patrick Barrett 0:c7393ae16c16 567 {
Patrick Barrett 0:c7393ae16c16 568 coap_error ret;
Patrick Barrett 0:c7393ae16c16 569 coap_init_pdu(pdu);
Patrick Barrett 0:c7393ae16c16 570 ret = coap_set_version(pdu, COAP_V1);
Patrick Barrett 0:c7393ae16c16 571 ret |= coap_set_type(pdu, CT_CON);
Patrick Barrett 0:c7393ae16c16 572 ret |= coap_set_code(pdu, CC_POST);
Patrick Barrett 0:c7393ae16c16 573 ret |= coap_set_mid(pdu, message_id_counter++);
Patrick Barrett 0:c7393ae16c16 574 ret |= coap_set_token(pdu, rand(), 2);
Patrick Barrett 0:c7393ae16c16 575 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)"1a", 2);
Patrick Barrett 0:c7393ae16c16 576 ret |= coap_add_option(pdu, CON_URI_PATH, (uint8_t*)alias, strlen(alias));
Patrick Barrett 0:c7393ae16c16 577 ret |= coap_add_option(pdu, CON_URI_QUERY, (uint8_t*)cik, 40);
Patrick Barrett 0:c7393ae16c16 578 ret |= coap_set_payload(pdu, (uint8_t *)value, strlen(value));
Patrick Barrett 0:c7393ae16c16 579
Patrick Barrett 0:c7393ae16c16 580 if (ret != CE_NONE)
Patrick Barrett 0:c7393ae16c16 581 return EXO_GENERAL_ERROR;
Patrick Barrett 0:c7393ae16c16 582
Patrick Barrett 0:c7393ae16c16 583 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 584 }
Patrick Barrett 0:c7393ae16c16 585
Patrick Barrett 0:c7393ae16c16 586 exo_error exo_build_msg_rst(coap_pdu *pdu, const uint16_t mid, const uint64_t token, const uint8_t tkl)
Patrick Barrett 0:c7393ae16c16 587 {
Patrick Barrett 0:c7393ae16c16 588 coap_error ret;
Patrick Barrett 0:c7393ae16c16 589 coap_init_pdu(pdu);
Patrick Barrett 0:c7393ae16c16 590 ret = coap_set_version(pdu, COAP_V1);
Patrick Barrett 0:c7393ae16c16 591 ret |= coap_set_type(pdu, CT_RST);
Patrick Barrett 0:c7393ae16c16 592 ret |= coap_set_code(pdu, CC_EMPTY);
Patrick Barrett 0:c7393ae16c16 593 ret |= coap_set_mid(pdu, mid);
Patrick Barrett 0:c7393ae16c16 594 ret |= coap_set_token(pdu, token, tkl);
Patrick Barrett 0:c7393ae16c16 595
Patrick Barrett 0:c7393ae16c16 596 if (ret != CE_NONE)
Patrick Barrett 0:c7393ae16c16 597 return EXO_GENERAL_ERROR;
Patrick Barrett 0:c7393ae16c16 598
Patrick Barrett 0:c7393ae16c16 599 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 600 }
Patrick Barrett 0:c7393ae16c16 601
Patrick Barrett 0:c7393ae16c16 602 exo_error exo_build_msg_ack(coap_pdu *pdu, const uint16_t mid)
Patrick Barrett 0:c7393ae16c16 603 {
Patrick Barrett 0:c7393ae16c16 604 coap_error ret;
Patrick Barrett 0:c7393ae16c16 605 coap_init_pdu(pdu);
Patrick Barrett 0:c7393ae16c16 606 ret = coap_set_version(pdu, COAP_V1);
Patrick Barrett 0:c7393ae16c16 607 ret |= coap_set_type(pdu, CT_ACK);
Patrick Barrett 0:c7393ae16c16 608 ret |= coap_set_code(pdu, CC_EMPTY);
Patrick Barrett 0:c7393ae16c16 609 ret |= coap_set_mid(pdu, mid);
Patrick Barrett 0:c7393ae16c16 610
Patrick Barrett 0:c7393ae16c16 611 if (ret != CE_NONE)
Patrick Barrett 0:c7393ae16c16 612 return EXO_GENERAL_ERROR;
Patrick Barrett 0:c7393ae16c16 613
Patrick Barrett 0:c7393ae16c16 614 return EXO_OK;
Patrick Barrett 0:c7393ae16c16 615 }
Patrick Barrett 0:c7393ae16c16 616
Patrick Barrett 11:08bae8fb9824 617 exo_error exo_do_activate()
Patrick Barrett 0:c7393ae16c16 618 {
Patrick Barrett 11:08bae8fb9824 619 exo_op op;
Patrick Barrett 11:08bae8fb9824 620
Patrick Barrett 11:08bae8fb9824 621 exo_op_init(&op);
Patrick Barrett 11:08bae8fb9824 622
Patrick Barrett 0:c7393ae16c16 623
Patrick Barrett 11:08bae8fb9824 624 return EXO_OK;
Patrick Barrett 11:08bae8fb9824 625 }
Patrick Barrett 11:08bae8fb9824 626
Patrick Barrett 11:08bae8fb9824 627 uint8_t exo_util_is_ascii_hex(const char *str, size_t len)
Patrick Barrett 11:08bae8fb9824 628 {
Patrick Barrett 11:08bae8fb9824 629 size_t i;
Patrick Barrett 11:08bae8fb9824 630
Patrick Barrett 11:08bae8fb9824 631 for (i = 0; i < len; i++) {
Patrick Barrett 11:08bae8fb9824 632 if (!((str[i] >= 'a' && str[i] <= 'f') ||
Patrick Barrett 11:08bae8fb9824 633 (str[i] >= '0' && str[i] <= '9'))) {
Patrick Barrett 0:c7393ae16c16 634 return 1;
Patrick Barrett 0:c7393ae16c16 635 }
Patrick Barrett 0:c7393ae16c16 636 }
Patrick Barrett 0:c7393ae16c16 637
Patrick Barrett 0:c7393ae16c16 638 return 0;
Patrick Barrett 0:c7393ae16c16 639 }
Patrick Barrett 0:c7393ae16c16 640