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Posted to commits@mynewt.apache.org by pa...@apache.org on 2016/09/14 20:32:54 UTC
[08/10] incubator-mynewt-core git commit: Add tinycbor and iotivity
constrained to the repo.
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/ece29bb3/libs/iotivity/src/messaging/coap/coap.c
----------------------------------------------------------------------
diff --git a/libs/iotivity/src/messaging/coap/coap.c b/libs/iotivity/src/messaging/coap/coap.c
new file mode 100644
index 0000000..e8d8608
--- /dev/null
+++ b/libs/iotivity/src/messaging/coap/coap.c
@@ -0,0 +1,1186 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "coap.h"
+#include "transactions.h"
+
+#ifdef OC_SECURITY
+#include "security/oc_dtls.h"
+#endif
+
+/*---------------------------------------------------------------------------*/
+/*- Variables ---------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+static uint16_t current_mid = 0;
+
+coap_status_t erbium_status_code = NO_ERROR;
+char *coap_error_message = "";
+/*---------------------------------------------------------------------------*/
+/*- Local helper functions --------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+static uint16_t
+coap_log_2(uint16_t value)
+{
+ uint16_t result = 0;
+
+ do {
+ value = value >> 1;
+ result++;
+ } while (value);
+
+ return (result - 1);
+}
+/*---------------------------------------------------------------------------*/
+static uint32_t
+coap_parse_int_option(uint8_t *bytes, size_t length)
+{
+ uint32_t var = 0;
+ int i = 0;
+
+ while (i < length) {
+ var <<= 8;
+ var |= bytes[i++];
+ }
+ return var;
+}
+/*---------------------------------------------------------------------------*/
+static uint8_t
+coap_option_nibble(unsigned int value)
+{
+ if (value < 13) {
+ return value;
+ } else if (value <= 0xFF + 13) {
+ return 13;
+ } else {
+ return 14;
+ }
+}
+/*---------------------------------------------------------------------------*/
+static size_t
+coap_set_option_header(unsigned int delta, size_t length, uint8_t *buffer)
+{
+ size_t written = 0;
+
+ buffer[0] = coap_option_nibble(delta) << 4 | coap_option_nibble(length);
+
+ if (delta > 268) {
+ buffer[++written] = ((delta - 269) >> 8) & 0xff;
+ buffer[++written] = (delta - 269) & 0xff;
+ } else if (delta > 12) {
+ buffer[++written] = (delta - 13);
+ }
+
+ if (length > 268) {
+ buffer[++written] = ((length - 269) >> 8) & 0xff;
+ buffer[++written] = (length - 269) & 0xff;
+ } else if (length > 12) {
+ buffer[++written] = (length - 13);
+ }
+
+ LOG("WRITTEN %zu B opt header\n", 1 + written);
+
+ return ++written;
+}
+/*---------------------------------------------------------------------------*/
+static size_t
+coap_serialize_int_option(unsigned int number, unsigned int current_number,
+ uint8_t *buffer, uint32_t value)
+{
+ size_t i = 0;
+
+ if (0xFF000000 & value) {
+ ++i;
+ }
+ if (0xFFFF0000 & value) {
+ ++i;
+ }
+ if (0xFFFFFF00 & value) {
+ ++i;
+ }
+ if (0xFFFFFFFF & value) {
+ ++i;
+ }
+ LOG("OPTION %u (delta %u, len %zu)\n", number, number - current_number, i);
+
+ i = coap_set_option_header(number - current_number, i, buffer);
+
+ if (0xFF000000 & value) {
+ buffer[i++] = (uint8_t)(value >> 24);
+ }
+ if (0xFFFF0000 & value) {
+ buffer[i++] = (uint8_t)(value >> 16);
+ }
+ if (0xFFFFFF00 & value) {
+ buffer[i++] = (uint8_t)(value >> 8);
+ }
+ if (0xFFFFFFFF & value) {
+ buffer[i++] = (uint8_t)(value);
+ }
+ return i;
+}
+/*---------------------------------------------------------------------------*/
+static size_t
+coap_serialize_array_option(unsigned int number, unsigned int current_number,
+ uint8_t *buffer, uint8_t *array, size_t length,
+ char split_char)
+{
+ size_t i = 0;
+
+ LOG("ARRAY type %u, len %zu, full [%.*s]\n", number, length, (int)length,
+ array);
+
+ if (split_char != '\0') {
+ int j;
+ uint8_t *part_start = array;
+ uint8_t *part_end = NULL;
+ size_t temp_length;
+
+ for (j = 0; j <= length + 1; ++j) {
+ LOG("STEP %u/%zu (%c)\n", j, length, array[j]);
+ if (array[j] == split_char || j == length) {
+ part_end = array + j;
+ temp_length = part_end - part_start;
+
+ i += coap_set_option_header(number - current_number, temp_length,
+ &buffer[i]);
+ memcpy(&buffer[i], part_start, temp_length);
+ i += temp_length;
+
+ LOG("OPTION type %u, delta %u, len %zu, part [%.*s]\n", number,
+ number - current_number, i, (int)temp_length, part_start);
+
+ ++j; /* skip the splitter */
+ current_number = number;
+ part_start = array + j;
+ }
+ } /* for */
+ } else {
+ i += coap_set_option_header(number - current_number, length, &buffer[i]);
+ memcpy(&buffer[i], array, length);
+ i += length;
+
+ LOG("OPTION type %u, delta %u, len %zu\n", number, number - current_number,
+ length);
+ }
+
+ return i;
+}
+/*---------------------------------------------------------------------------*/
+static void
+coap_merge_multi_option(char **dst, size_t *dst_len, uint8_t *option,
+ size_t option_len, char separator)
+{
+ /* merge multiple options */
+ if (*dst_len > 0) {
+ /* dst already contains an option: concatenate */
+ (*dst)[*dst_len] = separator;
+ *dst_len += 1;
+
+ /* memmove handles 2-byte option headers */
+ memmove((*dst) + (*dst_len), option, option_len);
+
+ *dst_len += option_len;
+ } else {
+ /* dst is empty: set to option */
+ *dst = (char *)option;
+ *dst_len = option_len;
+ }
+}
+/*---------------------------------------------------------------------------*/
+#if 0
+static int
+coap_get_variable(const char *buffer, size_t length, const char *name,
+ const char **output)
+{
+ const char *start = NULL;
+ const char *end = NULL;
+ const char *value_end = NULL;
+ size_t name_len = 0;
+
+ /*initialize the output buffer first */
+ *output = 0;
+
+ name_len = strlen(name);
+ end = buffer + length;
+
+ for(start = buffer; start + name_len < end; ++start) {
+ if((start == buffer || start[-1] == '&') && start[name_len] == '='
+ && strncmp(name, start, name_len) == 0) {
+
+ /* Point start to variable value */
+ start += name_len + 1;
+
+ /* Point end to the end of the value */
+ value_end = (const char *)memchr(start, '&', end - start);
+ if(value_end == NULL) {
+ value_end = end;
+ }
+ *output = start;
+
+ return value_end - start;
+ }
+ }
+ return 0;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+/*- Internal API ------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+void
+coap_init_connection()
+{
+ /* initialize transaction ID */
+ current_mid = oc_random_rand();
+}
+/*---------------------------------------------------------------------------*/
+uint16_t
+coap_get_mid()
+{
+ return ++current_mid;
+}
+/*---------------------------------------------------------------------------*/
+void
+coap_init_message(void *packet, coap_message_type_t type, uint8_t code,
+ uint16_t mid)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ /* Important thing */
+ memset(coap_pkt, 0, sizeof(coap_packet_t));
+
+ coap_pkt->type = type;
+ coap_pkt->code = code;
+ coap_pkt->mid = mid;
+}
+/*---------------------------------------------------------------------------*/
+size_t
+coap_serialize_message(void *packet, uint8_t *buffer)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+ uint8_t *option;
+ unsigned int current_number = 0;
+
+ /* Initialize */
+ coap_pkt->buffer = buffer;
+ coap_pkt->version = 1;
+
+ LOG("-Serializing MID %u to %p, ", coap_pkt->mid, coap_pkt->buffer);
+
+ /* set header fields */
+ coap_pkt->buffer[0] = 0x00;
+ coap_pkt->buffer[0] |= COAP_HEADER_VERSION_MASK &
+ (coap_pkt->version) << COAP_HEADER_VERSION_POSITION;
+ coap_pkt->buffer[0] |=
+ COAP_HEADER_TYPE_MASK & (coap_pkt->type) << COAP_HEADER_TYPE_POSITION;
+ coap_pkt->buffer[0] |= COAP_HEADER_TOKEN_LEN_MASK &
+ (coap_pkt->token_len)
+ << COAP_HEADER_TOKEN_LEN_POSITION;
+ coap_pkt->buffer[1] = coap_pkt->code;
+ coap_pkt->buffer[2] = (uint8_t)((coap_pkt->mid) >> 8);
+ coap_pkt->buffer[3] = (uint8_t)(coap_pkt->mid);
+
+ /* empty packet, dont need to do more stuff */
+ if (!coap_pkt->code) {
+ LOG("-Done serializing empty message at %p-\n", coap_pkt->buffer);
+ return 4;
+ }
+
+ /* set Token */
+ LOG("Token (len %u)", coap_pkt->token_len);
+ option = coap_pkt->buffer + COAP_HEADER_LEN;
+ for (current_number = 0; current_number < coap_pkt->token_len;
+ ++current_number) {
+ LOG(" %02X", coap_pkt->token[current_number]);
+ *option = coap_pkt->token[current_number];
+ ++option;
+ }
+ LOG("-\n");
+
+ /* Serialize options */
+ current_number = 0;
+
+ LOG("-Serializing options at %p-\n", option);
+#if 0
+ /* The options must be serialized in the order of their number */
+ COAP_SERIALIZE_BYTE_OPTION(COAP_OPTION_IF_MATCH, if_match, "If-Match");
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_URI_HOST, uri_host, '\0',
+ "Uri-Host");
+ COAP_SERIALIZE_BYTE_OPTION(COAP_OPTION_ETAG, etag, "ETag");
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_IF_NONE_MATCH,
+ content_format - coap_pkt-> content_format /* hack to get a zero field */,
+ "If-None-Match");
+#endif
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_OBSERVE, observe, "Observe");
+#if 0
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_URI_PORT, uri_port, "Uri-Port");
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_LOCATION_PATH, location_path,
+ '/', "Location-Path");
+#endif
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_URI_PATH, uri_path, '/', "Uri-Path");
+ LOG("Serialize content format: %d\n", coap_pkt->content_format);
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_CONTENT_FORMAT, content_format,
+ "Content-Format");
+#if 0
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_MAX_AGE, max_age, "Max-Age");
+#endif
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_URI_QUERY, uri_query, '&',
+ "Uri-Query");
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_ACCEPT, accept, "Accept");
+#if 0
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_LOCATION_QUERY, location_query,
+ '&', "Location-Query");
+#endif
+ COAP_SERIALIZE_BLOCK_OPTION(COAP_OPTION_BLOCK2, block2, "Block2");
+ COAP_SERIALIZE_BLOCK_OPTION(COAP_OPTION_BLOCK1, block1, "Block1");
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_SIZE2, size2, "Size2");
+#if 0
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_PROXY_URI, proxy_uri, '\0',
+ "Proxy-Uri");
+ COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_PROXY_SCHEME, proxy_scheme,
+ '\0', "Proxy-Scheme");
+#endif
+ COAP_SERIALIZE_INT_OPTION(COAP_OPTION_SIZE1, size1, "Size1");
+
+ LOG("-Done serializing at %p----\n", option);
+
+ /* Pack payload */
+ if ((option - coap_pkt->buffer) <= COAP_MAX_HEADER_SIZE) {
+ /* Payload marker */
+ if (coap_pkt->payload_len) {
+ *option = 0xFF;
+ ++option;
+ }
+ memmove(option, coap_pkt->payload, coap_pkt->payload_len);
+ } else {
+ /* an error occurred: caller must check for !=0 */
+ coap_pkt->buffer = NULL;
+ coap_error_message = "Serialized header exceeds COAP_MAX_HEADER_SIZE";
+ return 0;
+ }
+
+ LOG("-Done %u B (header len %u, payload len %u)-\n",
+ (unsigned int)(coap_pkt->payload_len + option - buffer),
+ (unsigned int)(option - buffer), (unsigned int)coap_pkt->payload_len);
+
+ LOG("Dump [0x%02X %02X %02X %02X %02X %02X %02X %02X]\n",
+ coap_pkt->buffer[0], coap_pkt->buffer[1], coap_pkt->buffer[2],
+ coap_pkt->buffer[3], coap_pkt->buffer[4], coap_pkt->buffer[5],
+ coap_pkt->buffer[6], coap_pkt->buffer[7]);
+ return (option - buffer) + coap_pkt->payload_len; /* packet length */
+}
+/*---------------------------------------------------------------------------*/
+void
+coap_send_message(oc_message_t *message)
+{
+ LOG("-sending OCF message (%lu)-\n", message->length);
+
+ oc_send_message(message);
+}
+/*---------------------------------------------------------------------------*/
+coap_status_t
+coap_parse_message(void *packet, uint8_t *data, uint16_t data_len)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+ /* initialize packet */
+ memset(coap_pkt, 0, sizeof(coap_packet_t));
+ /* pointer to packet bytes */
+ coap_pkt->buffer = data;
+ /* parse header fields */
+ coap_pkt->version = (COAP_HEADER_VERSION_MASK & coap_pkt->buffer[0]) >>
+ COAP_HEADER_VERSION_POSITION;
+ coap_pkt->type =
+ (COAP_HEADER_TYPE_MASK & coap_pkt->buffer[0]) >> COAP_HEADER_TYPE_POSITION;
+ coap_pkt->token_len = (COAP_HEADER_TOKEN_LEN_MASK & coap_pkt->buffer[0]) >>
+ COAP_HEADER_TOKEN_LEN_POSITION;
+ coap_pkt->code = coap_pkt->buffer[1];
+ coap_pkt->mid = coap_pkt->buffer[2] << 8 | coap_pkt->buffer[3];
+
+ if (coap_pkt->version != 1) {
+ coap_error_message = "CoAP version must be 1";
+ return BAD_REQUEST_4_00;
+ }
+
+ if (coap_pkt->token_len > COAP_TOKEN_LEN) {
+ coap_error_message = "Token Length must not be more than 8";
+ return BAD_REQUEST_4_00;
+ }
+
+ uint8_t *current_option = data + COAP_HEADER_LEN;
+
+ memcpy(coap_pkt->token, current_option, coap_pkt->token_len);
+ LOG("Token (len %u) [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n",
+ coap_pkt->token_len, coap_pkt->token[0], coap_pkt->token[1],
+ coap_pkt->token[2], coap_pkt->token[3], coap_pkt->token[4],
+ coap_pkt->token[5], coap_pkt->token[6],
+ coap_pkt->token[7]); /*FIXME always prints 8 bytes */
+
+ /* parse options */
+ memset(coap_pkt->options, 0, sizeof(coap_pkt->options));
+ current_option += coap_pkt->token_len;
+
+ unsigned int option_number = 0;
+ unsigned int option_delta = 0;
+ size_t option_length = 0;
+
+ while (current_option < data + data_len) {
+ /* payload marker 0xFF, currently only checking for 0xF* because rest is
+ * reserved */
+ if ((current_option[0] & 0xF0) == 0xF0) {
+ coap_pkt->payload = ++current_option;
+ coap_pkt->payload_len = data_len - (coap_pkt->payload - data);
+
+ /* also for receiving, the Erbium upper bound is MAX_PAYLOAD_SIZE */
+ if (coap_pkt->payload_len > MAX_PAYLOAD_SIZE) {
+ coap_pkt->payload_len = MAX_PAYLOAD_SIZE;
+ /* null-terminate payload */
+ }
+ coap_pkt->payload[coap_pkt->payload_len] = '\0';
+
+ break;
+ }
+
+ option_delta = current_option[0] >> 4;
+ option_length = current_option[0] & 0x0F;
+ ++current_option;
+
+ if (option_delta == 13) {
+ option_delta += current_option[0];
+ ++current_option;
+ } else if (option_delta == 14) {
+ option_delta += 255;
+ option_delta += current_option[0] << 8;
+ ++current_option;
+ option_delta += current_option[0];
+ ++current_option;
+ }
+
+ if (option_length == 13) {
+ option_length += current_option[0];
+ ++current_option;
+ } else if (option_length == 14) {
+ option_length += 255;
+ option_length += current_option[0] << 8;
+ ++current_option;
+ option_length += current_option[0];
+ ++current_option;
+ }
+
+ option_number += option_delta;
+
+ if (option_number < COAP_OPTION_SIZE1) {
+ LOG("OPTION %u (delta %u, len %zu): ", option_number, option_delta,
+ option_length);
+ SET_OPTION(coap_pkt, option_number);
+ }
+
+ switch (option_number) {
+ case COAP_OPTION_CONTENT_FORMAT:
+ coap_pkt->content_format =
+ coap_parse_int_option(current_option, option_length);
+ LOG("Content-Format [%u]\n", coap_pkt->content_format);
+ break;
+ case COAP_OPTION_MAX_AGE:
+ coap_pkt->max_age = coap_parse_int_option(current_option, option_length);
+ LOG("Max-Age [%lu]\n", (unsigned long)coap_pkt->max_age);
+ break;
+#if 0
+ case COAP_OPTION_ETAG:
+ coap_pkt->etag_len = MIN(COAP_ETAG_LEN,
+ option_length);
+ memcpy(coap_pkt->etag, current_option,
+ coap_pkt->etag_len);
+ LOG("ETag %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n",
+ coap_pkt->etag_len, coap_pkt->etag[0], coap_pkt->etag[1],
+ coap_pkt->etag[2], coap_pkt->etag[3], coap_pkt->etag[4],
+ coap_pkt->etag[5], coap_pkt->etag[6], coap_pkt->etag[7]
+ ); /*FIXME always prints 8 bytes */
+ break;
+#endif
+ case COAP_OPTION_ACCEPT:
+ coap_pkt->accept = coap_parse_int_option(current_option, option_length);
+ LOG("Accept [%u]\n", coap_pkt->accept);
+ break;
+#if 0
+ case COAP_OPTION_IF_MATCH:
+ /* TODO support multiple ETags */
+ coap_pkt->if_match_len = MIN(COAP_ETAG_LEN,
+ option_length);
+ memcpy(coap_pkt->if_match, current_option,
+ coap_pkt->if_match_len);
+ LOG("If-Match %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n",
+ coap_pkt->if_match_len, coap_pkt->if_match[0],
+ coap_pkt->if_match[1], coap_pkt->if_match[2],
+ coap_pkt->if_match[3], coap_pkt->if_match[4],
+ coap_pkt->if_match[5], coap_pkt->if_match[6],
+ coap_pkt->if_match[7]
+ ); /* FIXME always prints 8 bytes */
+ break;
+ case COAP_OPTION_IF_NONE_MATCH:
+ coap_pkt->if_none_match = 1;
+ LOG("If-None-Match\n");
+ break;
+
+ case COAP_OPTION_PROXY_URI:
+#if COAP_PROXY_OPTION_PROCESSING
+ coap_pkt->proxy_uri = (char *)current_option;
+ coap_pkt->proxy_uri_len = option_length;
+#endif
+ LOG("Proxy-Uri NOT IMPLEMENTED [%.*s]\n", (int)coap_pkt->proxy_uri_len,
+ coap_pkt->proxy_uri);
+ coap_error_message =
+ "This is a constrained server (Contiki)";
+ return PROXYING_NOT_SUPPORTED_5_05;
+ break;
+ case COAP_OPTION_PROXY_SCHEME:
+#if COAP_PROXY_OPTION_PROCESSING
+ coap_pkt->proxy_scheme = (char *)current_option;
+ coap_pkt->proxy_scheme_len = option_length;
+#endif
+ LOG("Proxy-Scheme NOT IMPLEMENTED [%.*s]\n",
+ (int)coap_pkt->proxy_scheme_len, coap_pkt->proxy_scheme);
+ coap_error_message =
+ "This is a constrained server (Contiki)";
+ return PROXYING_NOT_SUPPORTED_5_05;
+ break;
+
+ case COAP_OPTION_URI_HOST:
+ coap_pkt->uri_host = (char *)current_option;
+ coap_pkt->uri_host_len = option_length;
+ LOG("Uri-Host [%.*s]\n", (int)coap_pkt->uri_host_len,
+ coap_pkt->uri_host);
+ break;
+ case COAP_OPTION_URI_PORT:
+ coap_pkt->uri_port = coap_parse_int_option(
+ current_option, option_length);
+ LOG("Uri-Port [%u]\n", coap_pkt->uri_port);
+ break;
+#endif
+ case COAP_OPTION_URI_PATH:
+ /* coap_merge_multi_option() operates in-place on the IPBUF, but final
+ * packet field should be const string -> cast to string */
+ coap_merge_multi_option((char **)&(coap_pkt->uri_path),
+ &(coap_pkt->uri_path_len), current_option,
+ option_length, '/');
+ LOG("Uri-Path [%.*s]\n", (int)coap_pkt->uri_path_len, coap_pkt->uri_path);
+ break;
+ case COAP_OPTION_URI_QUERY:
+ /* coap_merge_multi_option() operates in-place on the IPBUF, but final
+ * packet field should be const string -> cast to string */
+ coap_merge_multi_option((char **)&(coap_pkt->uri_query),
+ &(coap_pkt->uri_query_len), current_option,
+ option_length, '&');
+ LOG("Uri-Query [%.*s]\n", (int)coap_pkt->uri_query_len,
+ coap_pkt->uri_query);
+ break;
+#if 0
+ case COAP_OPTION_LOCATION_PATH:
+ /* coap_merge_multi_option() operates in-place on the IPBUF, but final packet field should be const string -> cast to string */
+ coap_merge_multi_option(
+ (char **)&(coap_pkt->location_path),
+ &(coap_pkt->location_path_len),
+ current_option, option_length,
+ '/');
+ LOG("Location-Path [%.*s]\n", (int)coap_pkt->location_path_len,
+ coap_pkt->location_path);
+ break;
+ case COAP_OPTION_LOCATION_QUERY:
+ /* coap_merge_multi_option() operates in-place on the IPBUF, but final packet field should be const string -> cast to string */
+ coap_merge_multi_option(
+ (char **)&(coap_pkt->location_query),
+ &(coap_pkt->location_query_len),
+ current_option, option_length,
+ '&');
+ LOG("Location-Query [%.*s]\n", (int)coap_pkt->location_query_len,
+ coap_pkt->location_query);
+ break;
+#endif
+ case COAP_OPTION_OBSERVE:
+ coap_pkt->observe = coap_parse_int_option(current_option, option_length);
+ LOG("Observe [%lu]\n", (unsigned long)coap_pkt->observe);
+ break;
+ case COAP_OPTION_BLOCK2:
+ coap_pkt->block2_num =
+ coap_parse_int_option(current_option, option_length);
+ coap_pkt->block2_more = (coap_pkt->block2_num & 0x08) >> 3;
+ coap_pkt->block2_size = 16 << (coap_pkt->block2_num & 0x07);
+ coap_pkt->block2_offset = (coap_pkt->block2_num & ~0x0000000F)
+ << (coap_pkt->block2_num & 0x07);
+ coap_pkt->block2_num >>= 4;
+ LOG("Block2 [%lu%s (%u B/blk)]\n", (unsigned long)coap_pkt->block2_num,
+ coap_pkt->block2_more ? "+" : "", coap_pkt->block2_size);
+ break;
+ case COAP_OPTION_BLOCK1:
+ coap_pkt->block1_num =
+ coap_parse_int_option(current_option, option_length);
+ coap_pkt->block1_more = (coap_pkt->block1_num & 0x08) >> 3;
+ coap_pkt->block1_size = 16 << (coap_pkt->block1_num & 0x07);
+ coap_pkt->block1_offset = (coap_pkt->block1_num & ~0x0000000F)
+ << (coap_pkt->block1_num & 0x07);
+ coap_pkt->block1_num >>= 4;
+ LOG("Block1 [%lu%s (%u B/blk)]\n", (unsigned long)coap_pkt->block1_num,
+ coap_pkt->block1_more ? "+" : "", coap_pkt->block1_size);
+ break;
+ case COAP_OPTION_SIZE2:
+ coap_pkt->size2 = coap_parse_int_option(current_option, option_length);
+ LOG("Size2 [%lu]\n", (unsigned long)coap_pkt->size2);
+ break;
+ case COAP_OPTION_SIZE1:
+ coap_pkt->size1 = coap_parse_int_option(current_option, option_length);
+ LOG("Size1 [%lu]\n", (unsigned long)coap_pkt->size1);
+ break;
+ default:
+ LOG("unknown (%u)\n", option_number);
+ /* check if critical (odd) */
+ if (option_number & 1) {
+ coap_error_message = "Unsupported critical option";
+ return BAD_OPTION_4_02;
+ }
+ }
+ current_option += option_length;
+ } /* for */
+ LOG("-Done parsing-------\n");
+
+ return NO_ERROR;
+}
+#if 0
+int
+coap_get_query_variable(void *packet, const char *name, const char **output)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if(IS_OPTION(coap_pkt, COAP_OPTION_URI_QUERY)) {
+ return coap_get_variable(coap_pkt->uri_query, coap_pkt->uri_query_len,
+ name, output);
+ }
+ return 0;
+}
+int
+coap_get_post_variable(void *packet, const char *name, const char **output)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if(coap_pkt->payload_len) {
+ return coap_get_variable((const char *)coap_pkt->payload,
+ coap_pkt->payload_len, name, output);
+ }
+ return 0;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+int
+coap_set_status_code(void *packet, unsigned int code)
+{
+ if (code <= 0xFF) {
+ ((coap_packet_t *)packet)->code = (uint8_t)code;
+ return 1;
+ } else {
+ return 0;
+ }
+}
+/*---------------------------------------------------------------------------*/
+int
+coap_set_token(void *packet, const uint8_t *token, size_t token_len)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->token_len = MIN(COAP_TOKEN_LEN, token_len);
+ memcpy(coap_pkt->token, token, coap_pkt->token_len);
+
+ return coap_pkt->token_len;
+}
+#ifdef OC_CLIENT
+int
+coap_get_header_content_format(void *packet, unsigned int *format)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (!IS_OPTION(coap_pkt, COAP_OPTION_CONTENT_FORMAT)) {
+ return 0;
+ }
+ *format = coap_pkt->content_format;
+ return 1;
+}
+#endif
+int
+coap_set_header_content_format(void *packet, unsigned int format)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->content_format = format;
+ SET_OPTION(coap_pkt, COAP_OPTION_CONTENT_FORMAT);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+#if 0
+int coap_get_header_accept(void *packet, unsigned int *accept)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_ACCEPT)) {
+ return 0;
+ }
+ *accept = coap_pkt->accept;
+ return 1;
+}
+#endif
+#ifdef OC_CLIENT
+int
+coap_set_header_accept(void *packet, unsigned int accept)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->accept = accept;
+ SET_OPTION(coap_pkt, COAP_OPTION_ACCEPT);
+ return 1;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+#if 0
+int coap_get_header_max_age(void *packet, uint32_t *age)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_MAX_AGE)) {
+ *age = COAP_DEFAULT_MAX_AGE;
+ } else {
+ *age = coap_pkt->max_age;
+ }
+ return 1;
+}
+#endif
+int
+coap_set_header_max_age(void *packet, uint32_t age)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->max_age = age;
+ SET_OPTION(coap_pkt, COAP_OPTION_MAX_AGE);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+#if 0
+int coap_get_header_etag(void *packet, const uint8_t **etag)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_ETAG)) {
+ return 0;
+ }
+ *etag = coap_pkt->etag;
+ return coap_pkt->etag_len;
+}
+int coap_set_header_etag(void *packet, const uint8_t *etag, size_t etag_len)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->etag_len = MIN(COAP_ETAG_LEN, etag_len);
+ memcpy(coap_pkt->etag, etag, coap_pkt->etag_len);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_ETAG);
+ return coap_pkt->etag_len;
+}
+/*---------------------------------------------------------------------------*/
+/*FIXME support multiple ETags */
+int coap_get_header_if_match(void *packet, const uint8_t **etag)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_IF_MATCH)) {
+ return 0;
+ }
+ *etag = coap_pkt->if_match;
+ return coap_pkt->if_match_len;
+}
+int coap_set_header_if_match(void *packet, const uint8_t *etag, size_t etag_len)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->if_match_len = MIN(COAP_ETAG_LEN, etag_len);
+ memcpy(coap_pkt->if_match, etag, coap_pkt->if_match_len);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_IF_MATCH);
+ return coap_pkt->if_match_len;
+}
+/*---------------------------------------------------------------------------*/
+int coap_get_header_if_none_match(void *packet)
+{
+ return IS_OPTION((coap_packet_t *)packet,
+ COAP_OPTION_IF_NONE_MATCH) ? 1 : 0;
+}
+int coap_set_header_if_none_match(void *packet)
+{
+ SET_OPTION((coap_packet_t * )packet, COAP_OPTION_IF_NONE_MATCH);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+int coap_get_header_proxy_uri(void *packet, const char **uri)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_PROXY_URI)) {
+ return 0;
+ }
+ *uri = coap_pkt->proxy_uri;
+ return coap_pkt->proxy_uri_len;
+}
+int coap_set_header_proxy_uri(void *packet, const char *uri)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ /*TODO Provide alternative that sets Proxy-Scheme and Uri-* options and provide er-coap-conf define */
+
+ coap_pkt->proxy_uri = uri;
+ coap_pkt->proxy_uri_len = strlen(uri);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_PROXY_URI);
+ return coap_pkt->proxy_uri_len;
+}
+/*---------------------------------------------------------------------------*/
+int coap_get_header_uri_host(void *packet, const char **host)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_URI_HOST)) {
+ return 0;
+ }
+ *host = coap_pkt->uri_host;
+ return coap_pkt->uri_host_len;
+}
+int coap_set_header_uri_host(void *packet, const char *host)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->uri_host = host;
+ coap_pkt->uri_host_len = strlen(host);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_URI_HOST);
+ return coap_pkt->uri_host_len;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+int
+coap_get_header_uri_path(void *packet, const char **path)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (!IS_OPTION(coap_pkt, COAP_OPTION_URI_PATH)) {
+ return 0;
+ }
+ *path = coap_pkt->uri_path;
+ return coap_pkt->uri_path_len;
+}
+#ifdef OC_CLIENT
+int
+coap_set_header_uri_path(void *packet, const char *path)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ while (path[0] == '/')
+ ++path;
+
+ coap_pkt->uri_path = path;
+ coap_pkt->uri_path_len = strlen(path);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_URI_PATH);
+ return coap_pkt->uri_path_len;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+int
+coap_get_header_uri_query(void *packet, const char **query)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (!IS_OPTION(coap_pkt, COAP_OPTION_URI_QUERY)) {
+ return 0;
+ }
+ *query = coap_pkt->uri_query;
+ return coap_pkt->uri_query_len;
+}
+#ifdef OC_CLIENT
+int
+coap_set_header_uri_query(void *packet, const char *query)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ while (query[0] == '?')
+ ++query;
+
+ coap_pkt->uri_query = query;
+ coap_pkt->uri_query_len = strlen(query);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_URI_QUERY);
+ return coap_pkt->uri_query_len;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+#if 0
+int coap_get_header_location_path(void *packet, const char **path)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH)) {
+ return 0;
+ }
+ *path = coap_pkt->location_path;
+ return coap_pkt->location_path_len;
+}
+int coap_set_header_location_path(void *packet, const char *path)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ char *query;
+
+ while(path[0] == '/')
+ ++path;
+
+ if((query = strchr(path, '?'))) {
+ coap_set_header_location_query(packet, query + 1);
+ coap_pkt->location_path_len = query - path;
+ } else {
+ coap_pkt->location_path_len = strlen(path);
+ }
+ coap_pkt->location_path = path;
+
+ if(coap_pkt->location_path_len > 0) {
+ SET_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH);
+ }
+ return coap_pkt->location_path_len;
+}
+/*---------------------------------------------------------------------------*/
+int coap_get_header_location_query(void *packet, const char **query)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_QUERY)) {
+ return 0;
+ }
+ *query = coap_pkt->location_query;
+ return coap_pkt->location_query_len;
+}
+#endif
+int
+coap_set_header_location_query(void *packet, const char *query)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ while (query[0] == '?')
+ ++query;
+
+ coap_pkt->location_query = query;
+ coap_pkt->location_query_len = strlen(query);
+
+ SET_OPTION(coap_pkt, COAP_OPTION_LOCATION_QUERY);
+ return coap_pkt->location_query_len;
+}
+/*---------------------------------------------------------------------------*/
+int
+coap_get_header_observe(void *packet, uint32_t *observe)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (!IS_OPTION(coap_pkt, COAP_OPTION_OBSERVE)) {
+ return 0;
+ }
+ *observe = coap_pkt->observe;
+ return 1;
+}
+int
+coap_set_header_observe(void *packet, uint32_t observe)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->observe = observe;
+ SET_OPTION(coap_pkt, COAP_OPTION_OBSERVE);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+int
+coap_get_header_block2(void *packet, uint32_t *num, uint8_t *more,
+ uint16_t *size, uint32_t *offset)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (!IS_OPTION(coap_pkt, COAP_OPTION_BLOCK2)) {
+ return 0;
+ }
+ /* pointers may be NULL to get only specific block parameters */
+ if (num != NULL) {
+ *num = coap_pkt->block2_num;
+ }
+ if (more != NULL) {
+ *more = coap_pkt->block2_more;
+ }
+ if (size != NULL) {
+ *size = coap_pkt->block2_size;
+ }
+ if (offset != NULL) {
+ *offset = coap_pkt->block2_offset;
+ }
+ return 1;
+}
+int
+coap_set_header_block2(void *packet, uint32_t num, uint8_t more, uint16_t size)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (size < 16) {
+ return 0;
+ }
+ if (size > 2048) {
+ return 0;
+ }
+ if (num > 0x0FFFFF) {
+ return 0;
+ }
+ coap_pkt->block2_num = num;
+ coap_pkt->block2_more = more ? 1 : 0;
+ coap_pkt->block2_size = size;
+
+ SET_OPTION(coap_pkt, COAP_OPTION_BLOCK2);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+int
+coap_get_header_block1(void *packet, uint32_t *num, uint8_t *more,
+ uint16_t *size, uint32_t *offset)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (!IS_OPTION(coap_pkt, COAP_OPTION_BLOCK1)) {
+ return 0;
+ }
+ /* pointers may be NULL to get only specific block parameters */
+ if (num != NULL) {
+ *num = coap_pkt->block1_num;
+ }
+ if (more != NULL) {
+ *more = coap_pkt->block1_more;
+ }
+ if (size != NULL) {
+ *size = coap_pkt->block1_size;
+ }
+ if (offset != NULL) {
+ *offset = coap_pkt->block1_offset;
+ }
+ return 1;
+}
+int
+coap_set_header_block1(void *packet, uint32_t num, uint8_t more, uint16_t size)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (size < 16) {
+ return 0;
+ }
+ if (size > 2048) {
+ return 0;
+ }
+ if (num > 0x0FFFFF) {
+ return 0;
+ }
+ coap_pkt->block1_num = num;
+ coap_pkt->block1_more = more;
+ coap_pkt->block1_size = size;
+
+ SET_OPTION(coap_pkt, COAP_OPTION_BLOCK1);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+#if 0
+int coap_get_header_size2(void *packet, uint32_t *size)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_SIZE2)) {
+ return 0;
+ }
+ *size = coap_pkt->size2;
+ return 1;
+}
+int coap_set_header_size2(void *packet, uint32_t size)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->size2 = size;
+ SET_OPTION(coap_pkt, COAP_OPTION_SIZE2);
+ return 1;
+}
+/*---------------------------------------------------------------------------*/
+int coap_get_header_size1(void *packet, uint32_t *size)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ if(!IS_OPTION(coap_pkt, COAP_OPTION_SIZE1)) {
+ return 0;
+ }
+ *size = coap_pkt->size1;
+ return 1;
+}
+int coap_set_header_size1(void *packet, uint32_t size)
+{
+ coap_packet_t * const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->size1 = size;
+ SET_OPTION(coap_pkt, COAP_OPTION_SIZE1);
+ return 1;
+}
+#endif
+/*---------------------------------------------------------------------------*/
+int
+coap_get_payload(void *packet, const uint8_t **payload)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ if (coap_pkt->payload) {
+ *payload = coap_pkt->payload;
+ return coap_pkt->payload_len;
+ } else {
+ *payload = NULL;
+ return 0;
+ }
+}
+int
+coap_set_payload(void *packet, const void *payload, size_t length)
+{
+ coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
+
+ coap_pkt->payload = (uint8_t *)payload;
+ coap_pkt->payload_len = MIN(MAX_PAYLOAD_SIZE, length);
+
+ return coap_pkt->payload_len;
+}
+/*---------------------------------------------------------------------------*/
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/ece29bb3/libs/iotivity/src/messaging/coap/coap.h
----------------------------------------------------------------------
diff --git a/libs/iotivity/src/messaging/coap/coap.h b/libs/iotivity/src/messaging/coap/coap.h
new file mode 100644
index 0000000..b61b759
--- /dev/null
+++ b/libs/iotivity/src/messaging/coap/coap.h
@@ -0,0 +1,297 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+#ifndef COAP_H
+#define COAP_H
+
+#include "conf.h"
+#include "constants.h"
+#include <stddef.h> /* for size_t */
+#include <stdint.h>
+
+/* OIC stack headers */
+#include "config.h"
+#include "oc_buffer.h"
+#include "port/oc_connectivity.h"
+#include "port/oc_log.h"
+#include "port/oc_random.h"
+
+#ifndef MAX
+#define MAX(n, m) (((n) < (m)) ? (m) : (n))
+#endif
+
+#ifndef MIN
+#define MIN(n, m) (((n) < (m)) ? (n) : (m))
+#endif
+
+#ifndef ABS
+#define ABS(n) (((n) < 0) ? -(n) : (n))
+#endif
+
+#define COAP_MAX_PACKET_SIZE (COAP_MAX_HEADER_SIZE + MAX_PAYLOAD_SIZE)
+
+/* MAX_PAYLOAD_SIZE can be different from 2^x so we need to get next lower 2^x
+ * for COAP_MAX_BLOCK_SIZE */
+#ifndef COAP_MAX_BLOCK_SIZE
+#define COAP_MAX_BLOCK_SIZE \
+ (MAX_PAYLOAD_SIZE < 32 \
+ ? 16 \
+ : (MAX_PAYLOAD_SIZE < 64 \
+ ? 32 \
+ : (MAX_PAYLOAD_SIZE < 128 \
+ ? 64 \
+ : (MAX_PAYLOAD_SIZE < 256 \
+ ? 128 \
+ : (MAX_PAYLOAD_SIZE < 512 \
+ ? 256 \
+ : (MAX_PAYLOAD_SIZE < 1024 \
+ ? 512 \
+ : (MAX_PAYLOAD_SIZE < 2048 ? 1024 : 2048)))))))
+#endif /* COAP_MAX_BLOCK_SIZE */
+
+/* bitmap for set options */
+enum
+{
+ OPTION_MAP_SIZE = sizeof(uint8_t) * 8
+};
+
+#define SET_OPTION(packet, opt) \
+ ((packet)->options[opt / OPTION_MAP_SIZE] |= 1 << (opt % OPTION_MAP_SIZE))
+#define IS_OPTION(packet, opt) \
+ ((packet)->options[opt / OPTION_MAP_SIZE] & (1 << (opt % OPTION_MAP_SIZE)))
+
+/* parsed message struct */
+typedef struct
+{
+ uint8_t *buffer; /* pointer to CoAP header / incoming packet buffer / memory
+ to serialize packet */
+
+ uint8_t version;
+ coap_message_type_t type;
+ uint8_t code;
+ uint16_t mid;
+
+ uint8_t token_len;
+ uint8_t token[COAP_TOKEN_LEN];
+
+ uint8_t options[COAP_OPTION_SIZE1 / OPTION_MAP_SIZE +
+ 1]; /* bitmap to check if option is set */
+
+ uint16_t content_format; /* parse options once and store; allows setting
+ options in random order */
+ uint32_t max_age;
+ uint8_t etag_len;
+ uint8_t etag[COAP_ETAG_LEN];
+ size_t proxy_uri_len;
+ const char *proxy_uri;
+ size_t proxy_scheme_len;
+ const char *proxy_scheme;
+ size_t uri_host_len;
+ const char *uri_host;
+ size_t location_path_len;
+ const char *location_path;
+ uint16_t uri_port;
+ size_t location_query_len;
+ const char *location_query;
+ size_t uri_path_len;
+ const char *uri_path;
+ int32_t observe;
+ uint16_t accept;
+ uint8_t if_match_len;
+ uint8_t if_match[COAP_ETAG_LEN];
+ uint32_t block2_num;
+ uint8_t block2_more;
+ uint16_t block2_size;
+ uint32_t block2_offset;
+ uint32_t block1_num;
+ uint8_t block1_more;
+ uint16_t block1_size;
+ uint32_t block1_offset;
+ uint32_t size2;
+ uint32_t size1;
+ size_t uri_query_len;
+ const char *uri_query;
+ uint8_t if_none_match;
+
+ uint16_t payload_len;
+ uint8_t *payload;
+} coap_packet_t;
+
+/* option format serialization */
+#define COAP_SERIALIZE_INT_OPTION(number, field, text) \
+ if (IS_OPTION(coap_pkt, number)) { \
+ LOG(text " [%u]\n", (unsigned int)coap_pkt->field); \
+ option += coap_serialize_int_option(number, current_number, option, \
+ coap_pkt->field); \
+ current_number = number; \
+ }
+#define COAP_SERIALIZE_BYTE_OPTION(number, field, text) \
+ if (IS_OPTION(coap_pkt, number)) { \
+ LOG(text " %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", \
+ (unsigned int)coap_pkt->field##_len, coap_pkt->field[0], \
+ coap_pkt->field[1], coap_pkt->field[2], coap_pkt->field[3], \
+ coap_pkt->field[4], coap_pkt->field[5], coap_pkt->field[6], \
+ coap_pkt->field[7]); /* FIXME always prints 8 bytes */ \
+ option += coap_serialize_array_option(number, current_number, option, \
+ coap_pkt->field, \
+ coap_pkt->field##_len, '\0'); \
+ current_number = number; \
+ }
+#define COAP_SERIALIZE_STRING_OPTION(number, field, splitter, text) \
+ if (IS_OPTION(coap_pkt, number)) { \
+ LOG(text " [%.*s]\n", (int)coap_pkt->field##_len, coap_pkt->field); \
+ option += coap_serialize_array_option(number, current_number, option, \
+ (uint8_t *)coap_pkt->field, \
+ coap_pkt->field##_len, splitter); \
+ current_number = number; \
+ }
+#define COAP_SERIALIZE_BLOCK_OPTION(number, field, text) \
+ if (IS_OPTION(coap_pkt, number)) { \
+ LOG(text " [%lu%s (%u B/blk)]\n", (unsigned long)coap_pkt->field##_num, \
+ coap_pkt->field##_more ? "+" : "", coap_pkt->field##_size); \
+ uint32_t block = coap_pkt->field##_num << 4; \
+ if (coap_pkt->field##_more) { \
+ block |= 0x8; \
+ } \
+ block |= 0xF & coap_log_2(coap_pkt->field##_size / 16); \
+ LOG(text " encoded: 0x%lX\n", (unsigned long)block); \
+ option += \
+ coap_serialize_int_option(number, current_number, option, block); \
+ current_number = number; \
+ }
+
+/* to store error code and human-readable payload */
+extern coap_status_t erbium_status_code;
+extern char *coap_error_message;
+
+void coap_init_connection(void);
+uint16_t coap_get_mid(void);
+
+void coap_init_message(void *packet, coap_message_type_t type, uint8_t code,
+ uint16_t mid);
+size_t coap_serialize_message(void *packet, uint8_t *buffer);
+void coap_send_message(oc_message_t *message);
+coap_status_t coap_parse_message(void *request, uint8_t *data,
+ uint16_t data_len);
+
+int coap_get_query_variable(void *packet, const char *name,
+ const char **output);
+int coap_get_post_variable(void *packet, const char *name, const char **output);
+
+/*---------------------------------------------------------------------------*/
+
+int coap_set_status_code(void *packet, unsigned int code);
+
+int coap_set_token(void *packet, const uint8_t *token, size_t token_len);
+
+int coap_get_header_content_format(void *packet, unsigned int *format);
+int coap_set_header_content_format(void *packet, unsigned int format);
+
+int coap_get_header_accept(void *packet, unsigned int *accept);
+int coap_set_header_accept(void *packet, unsigned int accept);
+
+int coap_get_header_max_age(void *packet, uint32_t *age);
+int coap_set_header_max_age(void *packet, uint32_t age);
+
+int coap_get_header_etag(void *packet, const uint8_t **etag);
+int coap_set_header_etag(void *packet, const uint8_t *etag, size_t etag_len);
+
+int coap_get_header_if_match(void *packet, const uint8_t **etag);
+int coap_set_header_if_match(void *packet, const uint8_t *etag,
+ size_t etag_len);
+
+int coap_get_header_if_none_match(void *packet);
+int coap_set_header_if_none_match(void *packet);
+
+int coap_get_header_proxy_uri(
+ void *packet,
+ const char **uri); /* in-place string might not be 0-terminated. */
+int coap_set_header_proxy_uri(void *packet, const char *uri);
+
+int coap_get_header_proxy_scheme(
+ void *packet,
+ const char **scheme); /* in-place string might not be 0-terminated. */
+int coap_set_header_proxy_scheme(void *packet, const char *scheme);
+
+int coap_get_header_uri_host(
+ void *packet,
+ const char **host); /* in-place string might not be 0-terminated. */
+int coap_set_header_uri_host(void *packet, const char *host);
+
+int coap_get_header_uri_path(
+ void *packet,
+ const char **path); /* in-place string might not be 0-terminated. */
+int coap_set_header_uri_path(void *packet, const char *path);
+
+int coap_get_header_uri_query(
+ void *packet,
+ const char **query); /* in-place string might not be 0-terminated. */
+int coap_set_header_uri_query(void *packet, const char *query);
+
+int coap_get_header_location_path(
+ void *packet,
+ const char **path); /* in-place string might not be 0-terminated. */
+int coap_set_header_location_path(void *packet,
+ const char *path); /* also splits optional
+ query into
+ Location-Query option.
+ */
+
+int coap_get_header_location_query(
+ void *packet,
+ const char **query); /* in-place string might not be 0-terminated. */
+int coap_set_header_location_query(void *packet, const char *query);
+
+int coap_get_header_observe(void *packet, uint32_t *observe);
+int coap_set_header_observe(void *packet, uint32_t observe);
+
+int coap_get_header_block2(void *packet, uint32_t *num, uint8_t *more,
+ uint16_t *size, uint32_t *offset);
+int coap_set_header_block2(void *packet, uint32_t num, uint8_t more,
+ uint16_t size);
+
+int coap_get_header_block1(void *packet, uint32_t *num, uint8_t *more,
+ uint16_t *size, uint32_t *offset);
+int coap_set_header_block1(void *packet, uint32_t num, uint8_t more,
+ uint16_t size);
+
+int coap_get_header_size2(void *packet, uint32_t *size);
+int coap_set_header_size2(void *packet, uint32_t size);
+
+int coap_get_header_size1(void *packet, uint32_t *size);
+int coap_set_header_size1(void *packet, uint32_t size);
+
+int coap_get_payload(void *packet, const uint8_t **payload);
+int coap_set_payload(void *packet, const void *payload, size_t length);
+
+#endif /* COAP_H */
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/ece29bb3/libs/iotivity/src/messaging/coap/conf.h
----------------------------------------------------------------------
diff --git a/libs/iotivity/src/messaging/coap/conf.h b/libs/iotivity/src/messaging/coap/conf.h
new file mode 100644
index 0000000..4e2c878
--- /dev/null
+++ b/libs/iotivity/src/messaging/coap/conf.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+#ifndef CONF_H
+#define CONF_H
+
+#include "config.h"
+
+/* Features that can be disabled to achieve smaller memory footprint */
+#define COAP_LINK_FORMAT_FILTERING 0
+#define COAP_PROXY_OPTION_PROCESSING 0
+
+/* The number of concurrent messages that can be stored for retransmission in
+ * the transaction layer. */
+#ifndef COAP_MAX_OPEN_TRANSACTIONS
+#define COAP_MAX_OPEN_TRANSACTIONS (MAX_NUM_CONCURRENT_REQUESTS)
+#endif /* COAP_MAX_OPEN_TRANSACTIONS */
+
+/* Maximum number of failed request attempts before action */
+#ifndef COAP_MAX_ATTEMPTS
+#define COAP_MAX_ATTEMPTS 2
+#endif /* COAP_MAX_ATTEMPTS */
+
+/* Conservative size limit, as not all options have to be set at the same time.
+ * Check when Proxy-Uri option is used */
+#ifndef COAP_MAX_HEADER_SIZE /* Hdr CoF If-Match \
+ Obs Blo strings */
+#define COAP_MAX_HEADER_SIZE \
+ (4 + COAP_TOKEN_LEN + 3 + 1 + COAP_ETAG_LEN + 4 + 4 + 30) /* 65 */
+#endif /* COAP_MAX_HEADER_SIZE */
+
+/* Number of observer slots (each takes abot xxx bytes) */
+#ifndef COAP_MAX_OBSERVERS
+#define COAP_MAX_OBSERVERS (MAX_APP_RESOURCES + MAX_NUM_CONCURRENT_REQUESTS)
+#endif /* COAP_MAX_OBSERVERS */
+
+/* Interval in notifies in which NON notifies are changed to CON notifies to
+ * check client. */
+#define COAP_OBSERVE_REFRESH_INTERVAL 20
+
+#endif /* CONF_H */
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/ece29bb3/libs/iotivity/src/messaging/coap/constants.h
----------------------------------------------------------------------
diff --git a/libs/iotivity/src/messaging/coap/constants.h b/libs/iotivity/src/messaging/coap/constants.h
new file mode 100644
index 0000000..9e9f3b3
--- /dev/null
+++ b/libs/iotivity/src/messaging/coap/constants.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+#ifndef CONSTANTS_H
+#define CONSTANTS_H
+
+#define COAP_DEFAULT_PORT 5683
+
+#define COAP_DEFAULT_MAX_AGE 60
+#define COAP_RESPONSE_TIMEOUT 2
+#define COAP_RESPONSE_RANDOM_FACTOR 1.5
+#define COAP_MAX_RETRANSMIT 4
+
+#define COAP_HEADER_LEN \
+ 4 /* | version:0x03 type:0x0C tkl:0xF0 | code | mid:0x00FF | mid:0xFF00 | */
+#define COAP_TOKEN_LEN 8 /* The maximum number of bytes for the Token */
+#define COAP_ETAG_LEN 8 /* The maximum number of bytes for the ETag */
+
+#define COAP_HEADER_VERSION_MASK 0xC0
+#define COAP_HEADER_VERSION_POSITION 6
+#define COAP_HEADER_TYPE_MASK 0x30
+#define COAP_HEADER_TYPE_POSITION 4
+#define COAP_HEADER_TOKEN_LEN_MASK 0x0F
+#define COAP_HEADER_TOKEN_LEN_POSITION 0
+
+#define COAP_HEADER_OPTION_DELTA_MASK 0xF0
+#define COAP_HEADER_OPTION_SHORT_LENGTH_MASK 0x0F
+
+/* CoAP message types */
+typedef enum {
+ COAP_TYPE_CON, /* confirmables */
+ COAP_TYPE_NON, /* non-confirmables */
+ COAP_TYPE_ACK, /* acknowledgements */
+ COAP_TYPE_RST /* reset */
+} coap_message_type_t;
+
+/* CoAP request method codes */
+typedef enum { COAP_GET = 1, COAP_POST, COAP_PUT, COAP_DELETE } coap_method_t;
+
+/* CoAP response codes */
+typedef enum {
+ NO_ERROR = 0,
+
+ CREATED_2_01 = 65, /* CREATED */
+ DELETED_2_02 = 66, /* DELETED */
+ VALID_2_03 = 67, /* NOT_MODIFIED */
+ CHANGED_2_04 = 68, /* CHANGED */
+ CONTENT_2_05 = 69, /* OK */
+ CONTINUE_2_31 = 95, /* CONTINUE */
+
+ BAD_REQUEST_4_00 = 128, /* BAD_REQUEST */
+ UNAUTHORIZED_4_01 = 129, /* UNAUTHORIZED */
+ BAD_OPTION_4_02 = 130, /* BAD_OPTION */
+ FORBIDDEN_4_03 = 131, /* FORBIDDEN */
+ NOT_FOUND_4_04 = 132, /* NOT_FOUND */
+ METHOD_NOT_ALLOWED_4_05 = 133, /* METHOD_NOT_ALLOWED */
+ NOT_ACCEPTABLE_4_06 = 134, /* NOT_ACCEPTABLE */
+ PRECONDITION_FAILED_4_12 = 140, /* BAD_REQUEST */
+ REQUEST_ENTITY_TOO_LARGE_4_13 = 141, /* REQUEST_ENTITY_TOO_LARGE */
+ UNSUPPORTED_MEDIA_TYPE_4_15 = 143, /* UNSUPPORTED_MEDIA_TYPE */
+
+ INTERNAL_SERVER_ERROR_5_00 = 160, /* INTERNAL_SERVER_ERROR */
+ NOT_IMPLEMENTED_5_01 = 161, /* NOT_IMPLEMENTED */
+ BAD_GATEWAY_5_02 = 162, /* BAD_GATEWAY */
+ SERVICE_UNAVAILABLE_5_03 = 163, /* SERVICE_UNAVAILABLE */
+ GATEWAY_TIMEOUT_5_04 = 164, /* GATEWAY_TIMEOUT */
+ PROXYING_NOT_SUPPORTED_5_05 = 165, /* PROXYING_NOT_SUPPORTED */
+
+ /* Erbium errors */
+ MEMORY_ALLOCATION_ERROR = 192,
+ PACKET_SERIALIZATION_ERROR,
+
+ /* Erbium hooks */
+ CLEAR_TRANSACTION,
+ EMPTY_ACK_RESPONSE
+} coap_status_t;
+
+/* CoAP header option numbers */
+typedef enum {
+ COAP_OPTION_IF_MATCH = 1, /* 0-8 B */
+ COAP_OPTION_URI_HOST = 3, /* 1-255 B */
+ COAP_OPTION_ETAG = 4, /* 1-8 B */
+ COAP_OPTION_IF_NONE_MATCH = 5, /* 0 B */
+ COAP_OPTION_OBSERVE = 6, /* 0-3 B */
+ COAP_OPTION_URI_PORT = 7, /* 0-2 B */
+ COAP_OPTION_LOCATION_PATH = 8, /* 0-255 B */
+ COAP_OPTION_URI_PATH = 11, /* 0-255 B */
+ COAP_OPTION_CONTENT_FORMAT = 12, /* 0-2 B */
+ COAP_OPTION_MAX_AGE = 14, /* 0-4 B */
+ COAP_OPTION_URI_QUERY = 15, /* 0-255 B */
+ COAP_OPTION_ACCEPT = 17, /* 0-2 B */
+ COAP_OPTION_LOCATION_QUERY = 20, /* 0-255 B */
+ COAP_OPTION_BLOCK2 = 23, /* 1-3 B */
+ COAP_OPTION_BLOCK1 = 27, /* 1-3 B */
+ COAP_OPTION_SIZE2 = 28, /* 0-4 B */
+ COAP_OPTION_PROXY_URI = 35, /* 1-1034 B */
+ COAP_OPTION_PROXY_SCHEME = 39, /* 1-255 B */
+ COAP_OPTION_SIZE1 = 60, /* 0-4 B */
+} coap_option_t;
+
+/* CoAP Content-Formats */
+typedef enum {
+ TEXT_PLAIN = 0,
+ TEXT_XML = 1,
+ TEXT_CSV = 2,
+ TEXT_HTML = 3,
+ IMAGE_GIF = 21,
+ IMAGE_JPEG = 22,
+ IMAGE_PNG = 23,
+ IMAGE_TIFF = 24,
+ AUDIO_RAW = 25,
+ VIDEO_RAW = 26,
+ APPLICATION_LINK_FORMAT = 40,
+ APPLICATION_XML = 41,
+ APPLICATION_OCTET_STREAM = 42,
+ APPLICATION_RDF_XML = 43,
+ APPLICATION_SOAP_XML = 44,
+ APPLICATION_ATOM_XML = 45,
+ APPLICATION_XMPP_XML = 46,
+ APPLICATION_EXI = 47,
+ APPLICATION_FASTINFOSET = 48,
+ APPLICATION_SOAP_FASTINFOSET = 49,
+ APPLICATION_JSON = 50,
+ APPLICATION_X_OBIX_BINARY = 51,
+ APPLICATION_CBOR = 60
+} coap_content_format_t;
+
+#endif /* CONSTANTS_H */
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/ece29bb3/libs/iotivity/src/messaging/coap/engine.c
----------------------------------------------------------------------
diff --git a/libs/iotivity/src/messaging/coap/engine.c b/libs/iotivity/src/messaging/coap/engine.c
new file mode 100644
index 0000000..638541e
--- /dev/null
+++ b/libs/iotivity/src/messaging/coap/engine.c
@@ -0,0 +1,333 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+#include "engine.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* OIC Stack headers */
+#include "api/oc_events.h"
+#include "oc_buffer.h"
+#include "oc_ri.h"
+
+#ifdef OC_CLIENT
+#include "oc_client_state.h"
+#endif
+
+OC_PROCESS(coap_engine, "CoAP Engine");
+
+extern bool oc_ri_invoke_coap_entity_handler(void *request, void *response,
+ uint8_t *buffer,
+ uint16_t buffer_size,
+ int32_t *offset,
+ oc_endpoint_t *endpoint);
+
+/*---------------------------------------------------------------------------*/
+/*- Internal API ------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*/
+int
+coap_receive(oc_message_t *msg)
+{
+ erbium_status_code = NO_ERROR;
+
+ LOG("\n\nCoAP Engine: received datalen=%lu \n", msg->length);
+
+ /* static declaration reduces stack peaks and program code size */
+ static coap_packet_t
+ message[1]; /* this way the packet can be treated as pointer as usual */
+ static coap_packet_t response[1];
+ static coap_transaction_t *transaction = NULL;
+
+ erbium_status_code = coap_parse_message(message, msg->data, msg->length);
+
+ if (erbium_status_code == NO_ERROR) {
+
+/*TODO duplicates suppression, if required by application */
+
+#if DEBUG
+ LOG(" Parsed: CoAP version: %u, token: 0x%02X%02X, mid: %u\n",
+ message->version, message->token[0], message->token[1], message->mid);
+ switch (message->type) {
+ case COAP_TYPE_CON:
+ LOG(" type: CON\n");
+ break;
+ case COAP_TYPE_NON:
+ LOG(" type: NON\n");
+ break;
+ case COAP_TYPE_ACK:
+ LOG(" type: ACK\n");
+ break;
+ case COAP_TYPE_RST:
+ LOG(" type: RST\n");
+ break;
+ default:
+ break;
+ }
+#endif
+
+ /* handle requests */
+ if (message->code >= COAP_GET && message->code <= COAP_DELETE) {
+
+#if DEBUG
+ switch (message->code) {
+ case COAP_GET:
+ LOG(" method: GET\n");
+ break;
+ case COAP_PUT:
+ LOG(" method: PUT\n");
+ break;
+ case COAP_POST:
+ LOG(" method: POST\n");
+ break;
+ case COAP_DELETE:
+ LOG(" method: DELETE\n");
+ break;
+ }
+ LOG(" URL: %.*s\n", (int) message->uri_path_len, message->uri_path);
+ LOG(" Payload: %.*s\n", (int) message->payload_len, message->payload);
+#endif
+ /* use transaction buffer for response to confirmable request */
+ if ((transaction = coap_new_transaction(message->mid, &msg->endpoint))) {
+ uint32_t block_num = 0;
+ uint16_t block_size = COAP_MAX_BLOCK_SIZE;
+ uint32_t block_offset = 0;
+ int32_t new_offset = 0;
+
+ /* prepare response */
+ if (message->type == COAP_TYPE_CON) {
+ /* reliable CON requests are answered with an ACK */
+ coap_init_message(response, COAP_TYPE_ACK, CONTENT_2_05,
+ message->mid);
+ } else {
+ /* unreliable NON requests are answered with a NON as well */
+ coap_init_message(response, COAP_TYPE_NON, CONTENT_2_05,
+ coap_get_mid());
+ /* mirror token */
+ }
+ if (message->token_len) {
+ coap_set_token(response, message->token, message->token_len);
+ /* get offset for blockwise transfers */
+ }
+ if (coap_get_header_block2(message, &block_num, NULL, &block_size,
+ &block_offset)) {
+ LOG("\tBlockwise: block request %u (%u/%u) @ %u bytes\n", block_num,
+ block_size, COAP_MAX_BLOCK_SIZE, block_offset);
+ block_size = MIN(block_size, COAP_MAX_BLOCK_SIZE);
+ new_offset = block_offset;
+ }
+
+ /* invoke resource handler in RI layer */
+ if (oc_ri_invoke_coap_entity_handler(
+ message, response,
+ transaction->message->data + COAP_MAX_HEADER_SIZE, block_size,
+ &new_offset, &msg->endpoint)) {
+
+ if (erbium_status_code == NO_ERROR) {
+
+ /* TODO coap_handle_blockwise(request, response, start_offset,
+ * end_offset); */
+
+ /* resource is unaware of Block1 */
+ if (IS_OPTION(message, COAP_OPTION_BLOCK1) &&
+ response->code < BAD_REQUEST_4_00 &&
+ !IS_OPTION(response, COAP_OPTION_BLOCK1)) {
+ LOG("\tBlock1 option NOT IMPLEMENTED\n");
+
+ erbium_status_code = NOT_IMPLEMENTED_5_01;
+ coap_error_message = "NoBlock1Support";
+
+ /* client requested Block2 transfer */
+ } else if (IS_OPTION(message, COAP_OPTION_BLOCK2)) {
+
+ /* unchanged new_offset indicates that resource is unaware of
+ * blockwise transfer */
+ if (new_offset == block_offset) {
+ LOG("\tBlockwise: unaware resource with payload length %u/%u\n",
+ response->payload_len, block_size);
+ if (block_offset >= response->payload_len) {
+ LOG("\t\t: block_offset >= response->payload_len\n");
+
+ response->code = BAD_OPTION_4_02;
+ coap_set_payload(response, "BlockOutOfScope",
+ 15); /* a const char str[] and sizeof(str)
+ produces larger code size */
+ } else {
+ coap_set_header_block2(response, block_num,
+ response->payload_len - block_offset >
+ block_size,
+ block_size);
+ coap_set_payload(
+ response, response->payload + block_offset,
+ MIN(response->payload_len - block_offset, block_size));
+ } /* if(valid offset) */
+
+ /* resource provides chunk-wise data */
+ } else {
+ LOG("\tBlockwise: blockwise resource, new offset %d\n",
+ new_offset);
+ coap_set_header_block2(response, block_num,
+ new_offset != -1 ||
+ response->payload_len > block_size,
+ block_size);
+
+ if (response->payload_len > block_size) {
+ coap_set_payload(response, response->payload, block_size);
+ }
+ } /* if(resource aware of blockwise) */
+
+ /* Resource requested Block2 transfer */
+ } else if (new_offset != 0) {
+ LOG("\tBlockwise: no block option for blockwise resource, using "
+ "block size %u\n",
+ COAP_MAX_BLOCK_SIZE);
+
+ coap_set_header_block2(response, 0, new_offset != -1,
+ COAP_MAX_BLOCK_SIZE);
+ coap_set_payload(response, response->payload,
+ MIN(response->payload_len, COAP_MAX_BLOCK_SIZE));
+ } /* blockwise transfer handling */
+ } /* no errors/hooks */
+ /* successful service callback */
+ /* serialize response */
+ }
+ if (erbium_status_code == NO_ERROR) {
+ if ((transaction->message->length = coap_serialize_message(
+ response, transaction->message->data)) == 0) {
+ erbium_status_code = PACKET_SERIALIZATION_ERROR;
+ }
+ }
+ } else {
+ erbium_status_code = SERVICE_UNAVAILABLE_5_03;
+ coap_error_message = "NoFreeTraBuffer";
+ } /* if(transaction buffer) */
+
+ /* handle responses */
+ } else { // Fix this
+ if (message->type == COAP_TYPE_CON) {
+ erbium_status_code = EMPTY_ACK_RESPONSE;
+ } else if (message->type == COAP_TYPE_ACK) {
+ /* transactions are closed through lookup below */
+ } else if (message->type == COAP_TYPE_RST) {
+#ifdef OC_SERVER
+ /* cancel possible subscriptions */
+ coap_remove_observer_by_mid(&msg->endpoint, message->mid);
+#endif
+ }
+
+ /* Open transaction now cleared for ACK since mid matches */
+ if ((transaction = coap_get_transaction_by_mid(message->mid))) {
+ coap_clear_transaction(transaction);
+ }
+ /* if(ACKed transaction) */
+ transaction = NULL;
+
+#ifdef OC_CLIENT // ACKs and RSTs sent to oc_ri.. RSTs cleared, ACKs sent to
+ // client
+ oc_ri_invoke_client_cb(message, &msg->endpoint);
+#endif
+
+ } /* request or response */
+ } /* parsed correctly */
+
+ /* if(parsed correctly) */
+ if (erbium_status_code == NO_ERROR) {
+ if (transaction) { // Server transactions sent from here
+ coap_send_transaction(transaction);
+ }
+ } else if (erbium_status_code == CLEAR_TRANSACTION) {
+ LOG("Clearing transaction for manual response");
+ coap_clear_transaction(transaction); // used in server for separate response
+ }
+#ifdef OC_CLIENT
+ else if (erbium_status_code == EMPTY_ACK_RESPONSE) {
+ coap_init_message(message, COAP_TYPE_ACK, 0, message->mid);
+ oc_message_t *response = oc_allocate_message();
+ if (response) {
+ memcpy(&response->endpoint, &msg->endpoint, sizeof(msg->endpoint));
+ response->length = coap_serialize_message(message, response->data);
+ coap_send_message(response);
+ }
+ }
+#endif /* OC_CLIENT */
+#ifdef OC_SERVER
+ else { // framework errors handled here
+ coap_message_type_t reply_type = COAP_TYPE_RST;
+
+ coap_clear_transaction(transaction);
+
+ coap_init_message(message, reply_type, SERVICE_UNAVAILABLE_5_03,
+ message->mid);
+
+ oc_message_t *response = oc_allocate_message();
+ if (response) {
+ memcpy(&response->endpoint, &msg->endpoint, sizeof(msg->endpoint));
+ response->length = coap_serialize_message(message, response->data);
+ coap_send_message(response);
+ }
+ }
+#endif /* OC_SERVER */
+
+ /* if(new data) */
+ return erbium_status_code;
+}
+/*---------------------------------------------------------------------------*/
+void
+coap_init_engine(void)
+{
+ coap_register_as_transaction_handler();
+}
+/*---------------------------------------------------------------------------*/
+OC_PROCESS_THREAD(coap_engine, ev, data)
+{
+ OC_PROCESS_BEGIN();
+
+ coap_register_as_transaction_handler();
+ coap_init_connection();
+
+ while (1) {
+ OC_PROCESS_YIELD();
+
+ if (ev == oc_events[INBOUND_RI_EVENT]) {
+ coap_receive(data);
+
+ oc_message_unref(data);
+ } else if (ev == OC_PROCESS_EVENT_TIMER) {
+ coap_check_transactions();
+ }
+ }
+
+ OC_PROCESS_END();
+}
+
+/*---------------------------------------------------------------------------*/
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/ece29bb3/libs/iotivity/src/messaging/coap/engine.h
----------------------------------------------------------------------
diff --git a/libs/iotivity/src/messaging/coap/engine.h b/libs/iotivity/src/messaging/coap/engine.h
new file mode 100644
index 0000000..73b6114
--- /dev/null
+++ b/libs/iotivity/src/messaging/coap/engine.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ */
+
+#ifndef ENGINE_H
+#define ENGINE_H
+
+#include "coap.h"
+#include "observe.h"
+#include "separate.h"
+#include "transactions.h"
+
+OC_PROCESS_NAME(coap_engine);
+
+void coap_init_engine(void);
+/*---------------------------------------------------------------------------*/
+int coap_receive(oc_message_t *message);
+
+#endif /* ENGINE_H */