+++ /dev/null
-/*
- * 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.
- */
-
-/**
- * \file
- * An implementation of the Constrained Application Protocol (draft 12)
- * \author
- * Matthias Kovatsch <kovatsch@inf.ethz.ch>
- * \contributors
- * David Navarro, Intel Corporation - Adapt to usage in liblwm2m
- */
-
-#ifndef COAP_13_H_
-#define COAP_13_H_
-
-#include <stdint.h>
-#include <stddef.h> /* for size_t */
-
-/*
- * The maximum buffer size that is provided for resource responses and must be respected due to the limited IP buffer.
- * Larger data must be handled by the resource and will be sent chunk-wise through a TCP stream or CoAP blocks.
- */
-#ifndef REST_MAX_CHUNK_SIZE
-#define REST_MAX_CHUNK_SIZE 128
-#endif
-
-#define COAP_DEFAULT_MAX_AGE 60
-#define COAP_RESPONSE_TIMEOUT 2
-#define COAP_MAX_RETRANSMIT 4
-
-#define COAP_TCP_SHIM_LEN 4 /* 32bit Length shim header for TCP */
-#define COAP_HEADER_LEN 4 /* | version:0x03 type:0x0C tkl:0xF0 | code | mid:0x00FF | mid:0xFF00 | */
-#define COAP_ETAG_LEN 8 /* The maximum number of bytes for the ETag */
-#define COAP_TOKEN_LEN 8 /* The maximum number of bytes for the Token */
-#define COAP_OPTIONS_MARKER_LEN 1 /* Length of marker (0xFF) between options and payload */
-
-#define COAP_MAX_ACCEPT_NUM 2 /* The maximum number of accept preferences to parse/store */
-
-#define COAP_MAX_OPTION_HEADER_LEN 5
-
-#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
-
-/*
- * Conservative size limit, as not all options have to be set at the same time.
- */
-#ifndef COAP_MAX_HEADER_SIZE
-/* Hdr CoT Age Tag Obs Tok Blo strings */
-#define COAP_MAX_HEADER_SIZE (COAP_HEADER_LEN + 3 + 5 + 1 + COAP_ETAG_LEN + 3 + 1 + COAP_TOKEN_LEN + 4 + 30) /* 70 */
-#endif /* COAP_MAX_HEADER_SIZE */
-
-#define COAP_MAX_PACKET_SIZE (COAP_MAX_HEADER_SIZE + REST_MAX_CHUNK_SIZE)
-/* 0/14 48 for IPv6 (28 for IPv4) */
-#if COAP_MAX_PACKET_SIZE > (UIP_BUFSIZE - UIP_LLH_LEN - UIP_IPUDPH_LEN)
-//#error "UIP_CONF_BUFFER_SIZE too small for REST_MAX_CHUNK_SIZE"
-#endif
-
-/* 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)))
-
-#ifndef MIN
-#define MIN(a, b) ((a) < (b)? (a) : (b))
-#endif /* MIN */
-
-/* CoAP protocols */
-typedef enum {
- COAP_UDP,
- COAP_UDP_DTLS,
- COAP_TCP,
- COAP_TCP_TLS
-} coap_protocol_t;
-
-/* 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 */
-
- 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 */
- MANUAL_RESPONSE
-} coap_status_t;
-
-/* CoAP header options */
-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_TYPE = 12, /* 0-2 B */
- COAP_OPTION_MAX_AGE = 14, /* 0-4 B */
- COAP_OPTION_URI_QUERY = 15, /* 0-270 B */
- COAP_OPTION_ACCEPT = 17, /* 0-2 B */
- COAP_OPTION_TOKEN = 19, /* 1-8 B */
- COAP_OPTION_LOCATION_QUERY = 20,/* 1-270 B */
- COAP_OPTION_BLOCK2 = 23, /* 1-3 B */
- COAP_OPTION_BLOCK1 = 27, /* 1-3 B */
- COAP_OPTION_SIZE = 28, /* 0-4 B */
- COAP_OPTION_PROXY_URI = 35, /* 1-270 B */
-} coap_option_t;
-
-/* CoAP Content-Types */
-typedef enum {
- TEXT_PLAIN = 0,
- TEXT_XML = 1, /* Indented types are not in the initial registry. */
- 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
-} coap_content_type_t;
-
-typedef struct _multi_option_t {
- struct _multi_option_t *next;
- uint8_t is_static;
- uint8_t len;
- uint8_t *data;
-} multi_option_t;
-
-/* 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 options[COAP_OPTION_PROXY_URI / OPTION_MAP_SIZE + 1]; /* Bitmap to check if option is set */
- uint16_t options_len;
-
- coap_content_type_t content_type; /* Parse options once and store; allows setting options in random order */
- uint32_t max_age;
- size_t proxy_uri_len;
- const uint8_t *proxy_uri;
- uint8_t etag_len;
- uint8_t etag[COAP_ETAG_LEN];
- size_t uri_host_len;
- const uint8_t *uri_host;
- multi_option_t *location_path;
- uint16_t uri_port;
- size_t location_query_len;
- uint8_t *location_query;
- multi_option_t *uri_path;
- uint32_t observe;
- uint8_t token_len;
- uint8_t token[COAP_TOKEN_LEN];
- uint8_t accept_num;
- uint16_t accept[COAP_MAX_ACCEPT_NUM];
- 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 size;
- multi_option_t *uri_query;
- uint8_t if_none_match;
-
- uint16_t payload_len;
- uint8_t *payload;
-
- coap_protocol_t protocol;
-
-} coap_packet_t;
-
-/* Option format serialization*/
-#define COAP_SERIALIZE_INT_OPTION(number, field, text) \
- if (IS_OPTION(coap_pkt, number)) { \
- PRINTF(text" [%u]\n", 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)) { \
- PRINTF(text" %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", 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)) { \
- PRINTF(text" [%.*s]\n", 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_MULTI_OPTION(number, field, text) \
- if (IS_OPTION(coap_pkt, number)) { \
- PRINTF(text); \
- option += coap_serialize_multi_option(number, current_number, option, coap_pkt->field); \
- current_number = number; \
- }
-#define COAP_SERIALIZE_ACCEPT_OPTION(number, field, text) \
- if (IS_OPTION(coap_pkt, number)) { \
- int i; \
- for (i = 0; i < coap_pkt->field##_num; ++i) { \
- PRINTF(text" [%u]\n", coap_pkt->field[i]); \
- option += coap_serialize_int_option(number, current_number, option, coap_pkt->field[i]); \
- current_number = number; \
- } \
- }
-#define COAP_SERIALIZE_BLOCK_OPTION(number, field, text) \
- if (IS_OPTION(coap_pkt, number)) { \
- PRINTF(text" [%lu%s (%u B/blk)]\n", 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); \
- PRINTF(text" encoded: 0x%lX\n", block); \
- option += coap_serialize_int_option(number, current_number, option, block); \
- current_number = number; \
- }
-
-/* To store error code and human-readable payload */
-extern const char *coap_error_message;
-
-uint16_t coap_get_mid(void);
-
-void coap_init_message(void *packet, coap_protocol_t protocol, coap_message_type_t type, uint8_t code, uint16_t mid);
-size_t coap_serialize_get_size(void *packet);
-size_t coap_serialize_message(void *packet, uint8_t *buffer);
-coap_status_t coap_parse_message(void *request, coap_protocol_t protocol, uint8_t *data, uint16_t data_len);
-void coap_free_header(void *packet);
-
-char *coap_get_multi_option_as_string(multi_option_t *option);
-void coap_add_multi_option(multi_option_t **dst, uint8_t *option, size_t option_len, uint8_t is_static);
-void free_multi_option(multi_option_t *dst);
-
-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);
-
-unsigned int coap_get_header_content_type(void *packet);
-int coap_set_header_content_type(void *packet, unsigned int content_type);
-
-int coap_get_header_accept(void *packet, const uint16_t **accept);
-int coap_set_header_accept(void *packet, uint16_t 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_token(void *packet, const uint8_t **token);
-int coap_set_header_token(void *packet, const uint8_t *token, size_t token_len);
-
-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_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_set_header_uri_path_segment(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, 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_size(void *packet, uint32_t *size);
-int coap_set_header_size(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_13_H_ */
+++ /dev/null
-/*
- * 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.
- */
-
-/**
- * \file
- * An implementation of the Constrained Application Protocol (draft 12)
- * \author
- * Matthias Kovatsch <kovatsch@inf.ethz.ch>
- * \contributors
- * David Navarro, Intel Corporation - Adapt to usage in liblwm2m
- */
-
-#include <stdlib.h>
-
-#include <string.h>
-#include <stdio.h>
-
-#include <apps/netutils/er-coap/er-coap-13.h>
-
-#define DEBUG 0
-#if DEBUG
-#include <stdio.h>
-#define PRINTF(...) printf(__VA_ARGS__)
-#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
-#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]", (lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3], (lladdr)->addr[4], (lladdr)->addr[5])
-#else
-#define PRINTF(...)
-#define PRINT6ADDR(addr)
-#define PRINTLLADDR(addr)
-#endif
-
-/*-----------------------------------------------------------------------------------*/
-/*- Variables -----------------------------------------------------------------------*/
-/*-----------------------------------------------------------------------------------*/
-static uint16_t current_mid = 0;
-
-coap_status_t coap_error_code = NO_ERROR;
-const char *coap_error_message = "";
-/*-----------------------------------------------------------------------------------*/
-/*- LOCAL HELP FUNCTIONS ------------------------------------------------------------*/
-/*-----------------------------------------------------------------------------------*/
-static
-uint16_t coap_log_2(uint16_t value)
-{
- uint16_t result = 0;
- do {
- value = value >> 1;
- result++;
- } while (value);
-
- return result ? result - 1 : result;
-}
-
-/*-----------------------------------------------------------------------------------*/
-static uint32_t coap_parse_int_option(uint8_t *bytes, size_t length)
-{
- uint32_t var = 0;
- size_t 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);
-
- /* avoids code duplication without function overhead */
- unsigned int *x = δ
- do {
- if (*x > 268) {
- buffer[++written] = (*x - 269) >> 8;
- buffer[++written] = (*x - 269);
- } else if (*x > 12) {
- buffer[++written] = (*x - 13);
- }
- } while (x != (unsigned int *)&length && (x = (unsigned int *)&length));
-
- PRINTF("WRITTEN %u B opt header\n", 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;
- }
-
- PRINTF("OPTION %u (delta %u, len %u)\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;
-
- if (split_char != '\0') {
- size_t j;
- uint8_t *part_start = array;
- uint8_t *part_end = NULL;
- size_t temp_length;
-
- for (j = 0; j <= length; ++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;
-
- PRINTF("OPTION type %u, delta %u, len %u, part [%.*s]\n", number, number - current_number, i, 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;
-
- PRINTF("OPTION type %u, delta %u, len %u\n", number, number - current_number, length);
- }
-
- return i;
-}
-
-/*-----------------------------------------------------------------------------------*/
-static size_t coap_serialize_multi_option(unsigned int number, unsigned int current_number, uint8_t *buffer, multi_option_t *array)
-{
- size_t i = 0;
- multi_option_t *j;
-
- for (j = array; j != NULL; j = j->next) {
- i += coap_set_option_header(number - current_number, j->len, &buffer[i]);
- current_number = number;
- memcpy(&buffer[i], j->data, j->len);
- i += j->len;
- } /* for */
-
- return i;
-}
-
-/*-----------------------------------------------------------------------------------*/
-static
-void coap_merge_multi_option(uint8_t **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 = option;
- *dst_len = option_len;
- }
-}
-
-void coap_add_multi_option(multi_option_t **dst, uint8_t *option, size_t option_len, uint8_t is_static)
-{
- multi_option_t *opt = (multi_option_t *)malloc(sizeof(multi_option_t));
-
- if (opt) {
- opt->next = NULL;
- opt->len = (uint8_t)option_len;
- if (is_static) {
- opt->data = option;
- opt->is_static = 1;
- } else {
- opt->is_static = 0;
- opt->data = (uint8_t *)malloc(option_len);
- if (opt->data == NULL) {
- free(opt);
- return;
- }
- memcpy(opt->data, option, option_len);
- }
-
- if (*dst) {
- multi_option_t *i = *dst;
- while (i->next) {
- i = i->next;
- }
- i->next = opt;
- } else {
- *dst = opt;
- }
- }
-}
-
-void free_multi_option(multi_option_t *dst)
-{
- if (dst) {
- multi_option_t *n = dst->next;
- dst->next = NULL;
- if (dst->is_static == 0) {
- free(dst->data);
- }
- free(dst);
- free_multi_option(n);
- }
-}
-
-char *coap_get_multi_option_as_string(multi_option_t *option)
-{
- size_t len = 0;
- multi_option_t *opt;
- char *output;
-
- for (opt = option; opt != NULL; opt = opt->next) {
- len += opt->len + 1; // for separator
- }
-
- output = malloc(len + 1); // for String terminator
- if (output != NULL) {
- size_t i = 0;
-
- for (opt = option; opt != NULL; opt = opt->next) {
- output[i] = '/';
- i += 1;
-
- memmove(output + i, opt->data, opt->len);
- i += opt->len;
- }
- output[i] = 0;
- }
-
- return output;
-}
-
-/*-----------------------------------------------------------------------------------*/
-static
-int coap_get_variable(const uint8_t *buffer, size_t length, const char *name, const char **output)
-{
- const uint8_t *start = NULL;
- const uint8_t *end = NULL;
- const uint8_t *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, (char *)start, name_len) == 0) {
-
- /* Point start to variable value */
- start += name_len + 1;
-
- /* Point end to the end of the value */
- value_end = (const uint8_t *)memchr(start, '&', end - start);
- if (value_end == NULL) {
- value_end = end;
- }
-
- *output = (char *)start;
-
- return (value_end - start);
- }
- }
-
- return 0;
-}
-
-/*-----------------------------------------------------------------------------------*/
-uint16_t coap_get_mid()
-{
- return ++current_mid;
-}
-
-/*-----------------------------------------------------------------------------------*/
-/*- MEASSAGE PROCESSING -------------------------------------------------------------*/
-/*-----------------------------------------------------------------------------------*/
-void coap_init_message(void *packet, coap_protocol_t protocol, 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->protocol = protocol;
- coap_pkt->type = type;
- coap_pkt->code = code;
- coap_pkt->mid = mid;
-}
-
-void coap_free_header(void *packet)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- free_multi_option(coap_pkt->uri_path);
- free_multi_option(coap_pkt->uri_query);
- free_multi_option(coap_pkt->location_path);
- coap_pkt->uri_path = NULL;
- coap_pkt->uri_query = NULL;
- coap_pkt->location_path = NULL;
-}
-
-/*-----------------------------------------------------------------------------------*/
-size_t coap_serialize_get_size(void *packet)
-{
- if (packet == NULL) {
- return 0;
- }
-
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
- size_t length = 0;
-
- coap_pkt->options_len = 0;
- if (IS_OPTION(coap_pkt, COAP_OPTION_IF_MATCH)) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->if_match_len;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_URI_HOST)) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->uri_host_len;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_ETAG)) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->etag_len;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_IF_NONE_MATCH)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_OBSERVE)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_URI_PORT)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH)) {
- multi_option_t *optP;
-
- for (optP = coap_pkt->location_path; optP != NULL; optP = optP->next) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + optP->len;
- }
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_URI_PATH)) {
- multi_option_t *optP;
-
- for (optP = coap_pkt->uri_path; optP != NULL; optP = optP->next) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + optP->len;
- }
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_CONTENT_TYPE)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_MAX_AGE)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_URI_QUERY)) {
- multi_option_t *optP;
-
- for (optP = coap_pkt->uri_query; optP != NULL; optP = optP->next) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + optP->len;
- }
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_ACCEPT)) {
- coap_pkt->options_len += coap_pkt->accept_num * COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_QUERY)) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->location_query_len;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_BLOCK2)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_BLOCK1)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_SIZE)) {
- // can be stored in extended fields
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN;
- }
- if (IS_OPTION(coap_pkt, COAP_OPTION_PROXY_URI)) {
- coap_pkt->options_len += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->proxy_uri_len;
- }
-
- switch (coap_pkt->protocol) {
- case COAP_TCP:
- case COAP_TCP_TLS: {
- int len = coap_pkt->options_len + coap_pkt->payload_len;
- if (len < 13) {
- length += 1;
- } else if (len < ((1 << 8) + 13)) {
- length += 2;
- } else if (len < ((1 << 16) + 269)) {
- length += 3;
- } else {
- length += 5;
- }
-
- length += coap_pkt->token_len + coap_pkt->options_len;
- if (coap_pkt->payload_len > 0) {
- length += COAP_OPTIONS_MARKER_LEN + coap_pkt->payload_len;
- }
- }
- break;
- case COAP_UDP:
- case COAP_UDP_DTLS:
- length += COAP_HEADER_LEN + coap_pkt->token_len + coap_pkt->options_len;
- if (coap_pkt->payload_len > 0) {
- length += COAP_OPTIONS_MARKER_LEN + coap_pkt->payload_len;
- }
- break;
- default:
- break;
- }
-
- return length;
-}
-
-/*-----------------------------------------------------------------------------------*/
-size_t coap_serialize_message(void *packet, uint8_t *buffer)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
- uint8_t *option;
- uint8_t *options_buf;
- unsigned int current_number = 0;
-
- /* Initialize */
- coap_pkt->buffer = buffer;
- coap_pkt->version = 1;
-
- PRINTF("-Serializing MID %u to %p, ", coap_pkt->mid, coap_pkt->buffer);
-
- /* First serialize the options to get their exact size */
- current_number = 0;
- options_buf = malloc(coap_pkt->options_len);
- if (!options_buf) {
- return 0;
- }
- option = options_buf;
-
- PRINTF("-Serializing options at %p-\n", option);
-
- /* 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_type - coap_pkt->content_type, "If-None-Match") /* hack to get a zero field */
- COAP_SERIALIZE_INT_OPTION(COAP_OPTION_OBSERVE, observe, "Observe")
- COAP_SERIALIZE_INT_OPTION(COAP_OPTION_URI_PORT, uri_port, "Uri-Port")
- COAP_SERIALIZE_MULTI_OPTION(COAP_OPTION_LOCATION_PATH, location_path, "Location-Path")
- COAP_SERIALIZE_MULTI_OPTION(COAP_OPTION_URI_PATH, uri_path, "Uri-Path")
- COAP_SERIALIZE_INT_OPTION(COAP_OPTION_CONTENT_TYPE, content_type, "Content-Format")
- COAP_SERIALIZE_INT_OPTION(COAP_OPTION_MAX_AGE, max_age, "Max-Age")
- COAP_SERIALIZE_MULTI_OPTION(COAP_OPTION_URI_QUERY, uri_query, "Uri-Query")
- COAP_SERIALIZE_ACCEPT_OPTION(COAP_OPTION_ACCEPT, accept, "Accept")
- COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_LOCATION_QUERY, location_query, '&', "Location-Query")
- COAP_SERIALIZE_BLOCK_OPTION(COAP_OPTION_BLOCK2, block2, "Block2")
- COAP_SERIALIZE_BLOCK_OPTION(COAP_OPTION_BLOCK1, block1, "Block1")
- COAP_SERIALIZE_INT_OPTION(COAP_OPTION_SIZE, size, "Size")
- COAP_SERIALIZE_STRING_OPTION(COAP_OPTION_PROXY_URI, proxy_uri, '\0', "Proxy-Uri")
-
- coap_pkt->options_len = option - options_buf;
-
- PRINTF("-Done serializing at %p----\n", option);
-
- switch (coap_pkt->protocol) {
- case COAP_UDP:
- case COAP_UDP_DTLS:
- 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);
- option = coap_pkt->buffer + COAP_HEADER_LEN;
- break;
-
- case COAP_TCP:
- case COAP_TCP_TLS: {
- uint32_t len = coap_pkt->options_len;
- if (coap_pkt->payload_len > 0) {
- len += COAP_OPTIONS_MARKER_LEN + coap_pkt->payload_len;
- }
-
- PRINTF("Options+Payload (len %u)", len);
- if (len < 13) {
- coap_pkt->buffer[0] = (COAP_HEADER_TOKEN_LEN_MASK & coap_pkt->token_len);
- coap_pkt->buffer[0] |= (len << 4);
- coap_pkt->buffer[1] = coap_pkt->code;
- option = coap_pkt->buffer + 2;
- } else if (len < ((1 << 8) + 13)) {
- coap_pkt->buffer[0] = (COAP_HEADER_TOKEN_LEN_MASK & coap_pkt->token_len);
- coap_pkt->buffer[0] |= (13 << 4);
- coap_pkt->buffer[1] = len - 13;
- coap_pkt->buffer[2] = coap_pkt->code;
- option = coap_pkt->buffer + 3;
- } else if (len < ((1 << 16) + 269)) {
- coap_pkt->buffer[0] = (COAP_HEADER_TOKEN_LEN_MASK & coap_pkt->token_len);
- coap_pkt->buffer[0] |= (14 << 4);
- coap_pkt->buffer[1] = ((len - 269) & 0xFF00) >> 8;
- coap_pkt->buffer[2] = (len - 269) & 0x00FF;
- coap_pkt->buffer[3] = coap_pkt->code;
- option = coap_pkt->buffer + 4;
- } else {
- coap_pkt->buffer[0] = (COAP_HEADER_TOKEN_LEN_MASK & coap_pkt->token_len);
- coap_pkt->buffer[0] |= (15 << 4);
- coap_pkt->buffer[1] = ((len - 65805) & 0xFF000000) >> 24;
- coap_pkt->buffer[2] = ((len - 65805) & 0x00FF0000) >> 16;
- coap_pkt->buffer[3] = ((len - 65805) & 0x0000FF00) >> 8;
- coap_pkt->buffer[4] = (len - 65805) & 0x00FF;
- coap_pkt->buffer[5] = coap_pkt->code;
- option = coap_pkt->buffer + 6;
- }
- }
- break;
- default:
- break;
- }
-
- /* set Token */
- PRINTF("Token (len %u)", coap_pkt->token_len);
-
- for (current_number = 0; current_number < coap_pkt->token_len; ++current_number) {
- PRINTF(" %02X", coap_pkt->token[current_number]);
- *option = coap_pkt->token[current_number];
- ++option;
- }
- PRINTF("-\n");
-
- /* Copy options */
- memcpy(option, options_buf, coap_pkt->options_len);
- option += coap_pkt->options_len;
- free(options_buf);
-
- /* Free allocated header fields */
- coap_free_header(packet);
-
- /* Pack payload */
- /* Payload marker */
- if (coap_pkt->payload_len) {
- *option = 0xFF;
- ++option;
- }
-
- memmove(option, coap_pkt->payload, coap_pkt->payload_len);
-
- PRINTF("-Done %u B (header len %u, payload len %u)-\n", coap_pkt->payload_len + option - buffer, option - buffer, coap_pkt->payload_len);
-
- PRINTF("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 */
-}
-
-/*-----------------------------------------------------------------------------------*/
-coap_status_t coap_parse_message(void *packet, coap_protocol_t protocol, uint8_t *data, uint16_t data_len)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
- uint8_t *current_option;
-
- current_option = NULL;
-
- /* Initialize packet */
- memset(coap_pkt, 0, sizeof(coap_packet_t));
-
- coap_pkt->protocol = protocol;
-
- /* pointer to packet bytes */
- coap_pkt->buffer = data;
-
- /* parse header fields */
- switch (coap_pkt->protocol) {
- case COAP_UDP:
- case COAP_UDP_DTLS:
- 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 = MIN(COAP_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];
- current_option = data + COAP_HEADER_LEN;
- break;
- case COAP_TCP:
- case COAP_TCP_TLS:
- coap_pkt->token_len = coap_pkt->buffer[0] & COAP_HEADER_TOKEN_LEN_MASK;
- int nibble = (coap_pkt->buffer[0] & 0xF0) >> 4;
- if (nibble < 13) {
- coap_pkt->code = coap_pkt->buffer[1];
- current_option = data + 2;
- } else if (nibble == 13) {
- coap_pkt->code = coap_pkt->buffer[2];
- current_option = data + 3;
- } else if (nibble == 14) {
- coap_pkt->code = coap_pkt->buffer[3];
- current_option = data + 4;
- } else {
- coap_pkt->code = coap_pkt->buffer[5];
- current_option = data + 6;
- }
-
- /* Not passed in TCP, just set defaults */
- coap_pkt->version = 1;
- coap_pkt->type = COAP_TYPE_CON;
- coap_pkt->mid = 0;
- break;
- default:
- break;
- }
-
- if (coap_pkt->version != 1) {
- coap_error_message = "CoAP version must be 1";
- return BAD_REQUEST_4_00;
- }
-
- if (coap_pkt->token_len != 0) {
- memcpy(coap_pkt->token, current_option, coap_pkt->token_len);
- SET_OPTION(coap_pkt, COAP_OPTION_TOKEN);
-
- PRINTF("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 */
- 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);
-
- break;
- }
-
- option_delta = current_option[0] >> 4;
- option_length = current_option[0] & 0x0F;
- ++current_option;
-
- /* avoids code duplication without function overhead */
- unsigned int *x = &option_delta;
- do {
- if (*x == 13) {
- *x += current_option[0];
- ++current_option;
- } else if (*x == 14) {
- *x += 255;
- *x += current_option[0] << 8;
- ++current_option;
- *x += current_option[0];
- ++current_option;
- }
- } while (x != (unsigned int *)&option_length && (x = (unsigned int *)&option_length));
-
- option_number += option_delta;
-
- PRINTF("OPTION %u (delta %u, len %u): ", option_number, option_delta, option_length);
-
- SET_OPTION(coap_pkt, option_number);
-
- switch (option_number) {
- case COAP_OPTION_CONTENT_TYPE:
- coap_pkt->content_type = coap_parse_int_option(current_option, option_length);
- PRINTF("Content-Format [%u]\n", coap_pkt->content_type);
- break;
- case COAP_OPTION_MAX_AGE:
- coap_pkt->max_age = coap_parse_int_option(current_option, option_length);
- PRINTF("Max-Age [%lu]\n", coap_pkt->max_age);
- break;
- case COAP_OPTION_ETAG:
- coap_pkt->etag_len = (uint8_t)(MIN(COAP_ETAG_LEN, option_length));
- memcpy(coap_pkt->etag, current_option, coap_pkt->etag_len);
- PRINTF("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;
- case COAP_OPTION_ACCEPT:
- if (coap_pkt->accept_num < COAP_MAX_ACCEPT_NUM) {
- coap_pkt->accept[coap_pkt->accept_num] = coap_parse_int_option(current_option, option_length);
- coap_pkt->accept_num += 1;
- PRINTF("Accept [%u]\n", coap_pkt->content_type);
- }
- break;
- case COAP_OPTION_IF_MATCH:
- /*FIXME support multiple ETags */
- coap_pkt->if_match_len = (uint8_t)(MIN(COAP_ETAG_LEN, option_length));
- memcpy(coap_pkt->if_match, current_option, coap_pkt->if_match_len);
- PRINTF("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;
- PRINTF("If-None-Match\n");
- break;
-
- case COAP_OPTION_URI_HOST:
- coap_pkt->uri_host = current_option;
- coap_pkt->uri_host_len = option_length;
- PRINTF("Uri-Host [%.*s]\n", 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);
- PRINTF("Uri-Port [%u]\n", coap_pkt->uri_port);
- break;
- 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, 0);
- coap_add_multi_option(&(coap_pkt->uri_path), current_option, option_length, 1);
- PRINTF("Uri-Path [%.*s]\n", option_length, current_option);
- 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, '&');
- coap_add_multi_option(&(coap_pkt->uri_query), current_option, option_length, 1);
- PRINTF("Uri-Query [%.*s]\n", option_length, current_option);
- break;
-
- case COAP_OPTION_LOCATION_PATH:
- coap_add_multi_option(&(coap_pkt->location_path), current_option, option_length, 1);
- 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(&(coap_pkt->location_query), &(coap_pkt->location_query_len), current_option, option_length, '&');
- PRINTF("Location-Query [%.*s]\n", option_length, current_option);
- break;
-
- case COAP_OPTION_PROXY_URI:
- /*FIXME check for own end-point */
- coap_pkt->proxy_uri = current_option;
- coap_pkt->proxy_uri_len = option_length;
- /*TODO length > 270 not implemented (actually not required) */
- PRINTF("Proxy-Uri NOT IMPLEMENTED [%.*s]\n", 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_OBSERVE:
- coap_pkt->observe = coap_parse_int_option(current_option, option_length);
- PRINTF("Observe [%lu]\n", 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;
- PRINTF("Block2 [%lu%s (%u B/blk)]\n", 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;
- PRINTF("Block1 [%lu%s (%u B/blk)]\n", coap_pkt->block1_num, coap_pkt->block1_more ? "+" : "", coap_pkt->block1_size);
- break;
- case COAP_OPTION_SIZE:
- coap_pkt->size = coap_parse_int_option(current_option, option_length);
- PRINTF("Size [%lu]\n", coap_pkt->size);
- break;
- default:
- PRINTF("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 */
- PRINTF("-Done parsing-------\n");
-
- return NO_ERROR;
-}
-
-/*-----------------------------------------------------------------------------------*/
-/*- REST FRAMEWORK FUNCTIONS --------------------------------------------------------*/
-/*-----------------------------------------------------------------------------------*/
-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(coap_pkt->payload, coap_pkt->payload_len, name, output);
- }
- return 0;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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;
- }
-}
-
-/*-----------------------------------------------------------------------------------*/
-/*- HEADER OPTION GETTERS AND SETTERS -----------------------------------------------*/
-/*-----------------------------------------------------------------------------------*/
-unsigned int coap_get_header_content_type(void *packet)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- if (!IS_OPTION(coap_pkt, COAP_OPTION_CONTENT_TYPE)) {
- return -1;
- }
-
- return coap_pkt->content_type;
-}
-
-int coap_set_header_content_type(void *packet, unsigned int content_type)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- coap_pkt->content_type = (coap_content_type_t)content_type;
- SET_OPTION(coap_pkt, COAP_OPTION_CONTENT_TYPE);
- return 1;
-}
-
-/*-----------------------------------------------------------------------------------*/
-int coap_get_header_accept(void *packet, const uint16_t **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 coap_pkt->accept_num;
-}
-
-int coap_set_header_accept(void *packet, uint16_t accept)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- if (coap_pkt->accept_num < COAP_MAX_ACCEPT_NUM) {
- coap_pkt->accept[coap_pkt->accept_num] = accept;
- coap_pkt->accept_num += 1;
-
- SET_OPTION(coap_pkt, COAP_OPTION_ACCEPT);
- }
- return coap_pkt->accept_num;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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;
-}
-
-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;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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 = (uint8_t)(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 = (uint8_t)(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_token(void *packet, const uint8_t **token)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- if (!IS_OPTION(coap_pkt, COAP_OPTION_TOKEN)) {
- return 0;
- }
-
- *token = coap_pkt->token;
- return coap_pkt->token_len;
-}
-
-int coap_set_header_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 = (uint8_t)(MIN(COAP_TOKEN_LEN, token_len));
- memcpy(coap_pkt->token, token, coap_pkt->token_len);
-
- SET_OPTION(coap_pkt, COAP_OPTION_TOKEN);
- return coap_pkt->token_len;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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 = (const char *)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;
-
- coap_pkt->proxy_uri = (const uint8_t *)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 = (char *)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 = (uint8_t *)host;
- coap_pkt->uri_host_len = strlen(host);
-
- SET_OPTION(coap_pkt, COAP_OPTION_URI_HOST);
- return coap_pkt->uri_host_len;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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 = NULL; //coap_pkt->uri_path;
- return 0; //coap_pkt->uri_path_len;
-}
-
-int coap_set_header_uri_path(void *packet, const char *path)
-{
- coap_packet_t *coap_pkt = (coap_packet_t *)packet;
- int length = 0;
-
- free_multi_option(coap_pkt->uri_path);
- coap_pkt->uri_path = NULL;
-
- if (path[0] == '/') {
- ++path;
- }
-
- do {
- int i = 0;
-
- while (path[i] != 0 && path[i] != '/') {
- i++;
- }
- coap_add_multi_option(&(coap_pkt->uri_path), (uint8_t *)path, i, 0);
-
- if (path[i] == '/') {
- i++;
- }
- path += i;
- length += i;
- } while (path[0] != 0);
-
- SET_OPTION(coap_pkt, COAP_OPTION_URI_PATH);
- return length;
-}
-
-int coap_set_header_uri_path_segment(void *packet, const char *segment)
-{
- coap_packet_t *coap_pkt = (coap_packet_t *)packet;
- int length;
-
- if (segment == NULL || segment[0] == 0) {
- coap_add_multi_option(&(coap_pkt->uri_path), NULL, 0, 1);
- length = 0;
- } else {
- length = strlen(segment);
- coap_add_multi_option(&(coap_pkt->uri_path), (uint8_t *)segment, length, 0);
- }
-
- SET_OPTION(coap_pkt, COAP_OPTION_URI_PATH);
- return length;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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 = NULL; //coap_pkt->uri_query;
- return 0; //coap_pkt->uri_query_len;
-}
-
-int coap_set_header_uri_query(void *packet, const char *query)
-{
- int length = 0;
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- free_multi_option(coap_pkt->uri_query);
- coap_pkt->uri_query = NULL;
-
- if (query[0] == '?') {
- ++query;
- }
-
- do {
- int i = 0;
-
- while (query[i] != 0 && query[i] != '&') {
- i++;
- }
- coap_add_multi_option(&(coap_pkt->uri_query), (uint8_t *)query, i, 0);
-
- if (query[i] == '&') {
- i++;
- }
- query += i;
- length += i;
- } while (query[0] != 0);
-
- SET_OPTION(coap_pkt, COAP_OPTION_URI_QUERY);
- return length;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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 = NULL; //coap_pkt->location_path;
- return 0; //coap_pkt->location_path_len;
-}
-
-int coap_set_header_location_path(void *packet, const char *path)
-{
- coap_packet_t *coap_pkt = (coap_packet_t *)packet;
- int length = 0;
-
- free_multi_option(coap_pkt->location_path);
- coap_pkt->location_path = NULL;
-
- if (path[0] == '/') {
- ++path;
- }
-
- do {
- int i = 0;
-
- while (path[i] != 0 && path[i] != '/') {
- i++;
- }
- coap_add_multi_option(&(coap_pkt->location_path), (uint8_t *)path, i, 0);
-
- if (path[i] == '/') {
- i++;
- }
- path += i;
- length += i;
- } while (path[0] != 0);
-
- SET_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH);
- return length;
-}
-
-/*-----------------------------------------------------------------------------------*/
-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 = (const char *)coap_pkt->location_query;
- return coap_pkt->location_query_len;
-}
-
-int coap_set_header_location_query(void *packet, char *query)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- while (query[0] == '?') {
- ++query;
- }
-
- coap_pkt->location_query = (uint8_t *)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 = 0x00FFFFFF & 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;
-}
-
-/*-----------------------------------------------------------------------------------*/
-int coap_get_header_size(void *packet, uint32_t *size)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- if (!IS_OPTION(coap_pkt, COAP_OPTION_SIZE)) {
- return 0;
- }
-
- *size = coap_pkt->size;
- return 1;
-}
-
-int coap_set_header_size(void *packet, uint32_t size)
-{
- coap_packet_t *const coap_pkt = (coap_packet_t *)packet;
-
- coap_pkt->size = size;
- SET_OPTION(coap_pkt, COAP_OPTION_SIZE);
- return 1;
-}
-
-/*-----------------------------------------------------------------------------------*/
-/*- PAYLOAD -------------------------------------------------------------------------*/
-/*-----------------------------------------------------------------------------------*/
-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 = (uint16_t)(length);
-
- return coap_pkt->payload_len;
-}
-
-/*-----------------------------------------------------------------------------------*/