christoph/wamr
1
Fork 0
Code Releases Activity

Import app manager, samples and test-tools

Browse Source
This commit is contained in:
wenyongh
2019-05-17 17:15:25 +08:00
parent b6e29e2153
commit dd5b133fa5
164 changed files with 21123 additions and 496 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
core/shared-lib/coap/er-coap/Makefile Normal file
View File

@ -0,0 +1,15 @@
# Copyright (C) 2019 Intel Corporation. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
obj-y += er-coap.o

75
core/shared-lib/coap/er-coap/er-coap-conf.h Executable file
View File

@ -0,0 +1,75 @@
/*
* 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
* Collection of default configuration values.
* \author
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
*/
#ifndef ER_COAP_CONF_H_
#define ER_COAP_CONF_H_
/* Features that can be disabled to achieve smaller memory footprint */
#define COAP_LINK_FORMAT_FILTERING 0
#define COAP_PROXY_OPTION_PROCESSING 0
/* Listening port for the CoAP REST Engine */
#ifndef COAP_SERVER_PORT
#define COAP_SERVER_PORT COAP_DEFAULT_PORT
#endif
/* 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 4
#endif /* COAP_MAX_OPEN_TRANSACTIONS */
/* Maximum number of failed request attempts before action */
#ifndef COAP_MAX_ATTEMPTS
#define COAP_MAX_ATTEMPTS 4
#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 512
//(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 COAP_MAX_OPEN_TRANSACTIONS - 1
#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 /* ER_COAP_CONF_H_ */

161
core/shared-lib/coap/er-coap/er-coap-constants.h Executable file
View File

@ -0,0 +1,161 @@
/*
* 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
* Collection of constants specified in the CoAP standard.
* \author
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
*/
#ifndef ER_COAP_CONSTANTS_H_
#define ER_COAP_CONSTANTS_H_
#define COAP_DEFAULT_PORT 5683
#define COAP_DEFAULT_MAX_AGE 60
#define COAP_RESPONSE_TIMEOUT 3
#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 */
MANUAL_RESPONSE, PING_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
} coap_content_format_t;
#endif /* ER_COAP_CONSTANTS_H_ */

1131
core/shared-lib/coap/er-coap/er-coap.c Executable file
View File

File diff suppressed because it is too large Load Diff

370
core/shared-lib/coap/er-coap/er-coap.h Executable file
View File

@ -0,0 +1,370 @@
/*
* 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 (RFC).
* \author
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
*/
#ifndef ER_COAP_H_
#define ER_COAP_H_
#include "../extension/coap_platforms.h"
#include <stddef.h> /* for size_t */
#include <stdint.h>
//#include "contiki-net.h"
#include "er-coap-constants.h"
#include "er-coap-conf.h"
#ifdef __cplusplus
extern "C" {
#endif
/* sanity check for configured values */
#define COAP_MAX_PACKET_SIZE (COAP_MAX_HEADER_SIZE + REST_MAX_CHUNK_SIZE)
/*#if COAP_MAX_PACKET_SIZE > (UIP_BUFSIZE - UIP_IPH_LEN - UIP_UDPH_LEN)
#error "UIP_CONF_BUFFER_SIZE too small for REST_MAX_CHUNK_SIZE"
#endif
*/
/* ------------------------------------------------------ */
/* ------ section added by the coap request --------- */
/* ------------------------------------------------------ */
//typedef int (*restful_response_handler)(void *response,void *data);
#define RX_TIMEOUT (-1)
typedef int (*Tx_Data)(void * coap_ctx, const uip_ipaddr_t *dst_addr, void *buf, int len);
typedef int (*Rx_Data) (void * coap_ctx, void *buf, int len, int timeout);
typedef int (*Request_Handler) (void * coap_ctx, void *);
typedef int (*CoAP_Res_Handler) (void * request, void * response, char **out_payload, int * payload_len);
typedef struct _coap_resource_handler
{
struct _coap_resource_handler * next;
char * url;
CoAP_Res_Handler get_handler;
CoAP_Res_Handler put_handler;
CoAP_Res_Handler post_handler;
CoAP_Res_Handler other_handler; // create | delete
}coap_resource_handler_t;
typedef struct res_block_state
{
struct res_block_state * next;
char * url;
void * buffer;
int buffer_size;
uint32_t block_num;
uint16_t block_size;
uint16_t content_fmt;
uint32_t last_access;
uint8_t is_get;
} res_block_state_t;
typedef struct peer_block_state
{
struct peer_block_state * next;
struct net_addr_coap peer_addr;
res_block_state_t * list;
}peer_block_state_t;
typedef struct coap_context {
uint8_t * buf;
uint32_t buf_len; // the data length
uint32_t buf_size; // the malloced buffer size
struct net_addr_coap my_addr;
// the address associated with current buffer
struct net_addr_coap src_addr;
uint8_t status;
uint8_t is_used;
uint8_t response_on_not_found;
uint16_t default_retrans_cnt;
uint32_t default_retrans_ms;
Tx_Data tx_data;
Rx_Data rx_data;
int socket;
char * user_data;
peer_block_state_t * blockwise_list;
coap_resource_handler_t * resource_handlers;
void * transactions;
void * transaction_lock;
uint32_t last_checktime;
void * request_handler;
#ifdef WITH_DTLS
struct dtls_context_t *dtls_context;
dtls_handler_t dtls_handler;
struct process *process;
#endif /* WITH_DTLS */
} coap_context_t;
int add_resource_handler(coap_context_t * coap_ctx, coap_resource_handler_t * handler);
// coap_context_t * coap_context_new(uip_ipaddr_t *my_addr, uint16_t my_port); //CANNOTBUILD
void coap_context_close(coap_context_t *coap_ctx);
void coap_ctx_send(coap_context_t *coap_ctx, uint8_t *data,
uint16_t length);
/* ---------------- end of section ------------------ */
/* use Erbium CoAP for the REST Engine. Must come before include of rest-engine.h. */
//#define REST coap_rest_implementation
//#include "rest-engine.h"
/* REST_MAX_CHUNK_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 (REST_MAX_CHUNK_SIZE < 32 ? 16 : \
(REST_MAX_CHUNK_SIZE < 64 ? 32 : \
(REST_MAX_CHUNK_SIZE < 128 ? 64 : \
(REST_MAX_CHUNK_SIZE < 256 ? 128 : \
(REST_MAX_CHUNK_SIZE < 512 ? 256 : \
(REST_MAX_CHUNK_SIZE < 1024 ? 512 : \
(REST_MAX_CHUNK_SIZE < 2048 ? 1024 : 2048)))))))
#endif /* COAP_MAX_BLOCK_SIZE */
/* direct access into the buffer */
#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
#ifdef NETSTACK_CONF_WITH_IPV6
#define UIP_UDP_BUF ((struct uip_udp_hdr *)&uip_buf[uip_l2_l3_hdr_len])
#else
#define UIP_UDP_BUF ((struct uip_udp_hdr *)&uip_buf[UIP_LLH_LEN + UIP_IPH_LEN])
#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)))
/* 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 */
coap_content_format_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;
coap_content_format_t accept;
uint8_t if_match_len;
uint8_t if_match[COAP_ETAG_LEN];
uint32_t block2_num;
uint8_t block2_more;
uint32_t block2_size;
uint32_t block2_offset;
uint32_t block1_num;
uint8_t block1_more;
uint32_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;
uint32_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)) { \
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_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 coap_status_t erbium_status_code;
extern char *coap_error_message;
void coap_init_connection(uint16_t port);
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(coap_context_t*, uip_ipaddr_t *addr, uint16_t port, uint8_t *data,
uint16_t length);
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,
uint32_t *size, uint32_t *offset);
int coap_set_header_block2(void *packet, uint32_t num, uint8_t more,
uint32_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);
#ifdef __cplusplus
}
#endif
#endif /* ER_COAP_H_ */