CoAP client. More...

#include "core/net.h"
#include "coap/coap_common.h"
#include "coap/coap_message.h"
#include "coap/coap_option.h"
#include "core/crypto.h"
#include "tls.h"
#include "coap_client_request.h"

Data Structures
struct	_CoapClientContext
	CoAP client context. More...

Macros
#define	COAP_CLIENT_SUPPORT ENABLED

#define	COAP_CLIENT_DTLS_SUPPORT DISABLED

#define	COAP_CLIENT_OBSERVE_SUPPORT ENABLED

#define	COAP_CLIENT_BLOCK_SUPPORT ENABLED

#define	COAP_CLIENT_TICK_INTERVAL 100

#define	COAP_CLIENT_DEFAULT_TIMEOUT 20000

#define	COAP_CLIENT_NSTART 1

#define	COAP_CLIENT_MAX_RETRANSMIT 4

#define	COAP_CLIENT_ACK_TIMEOUT_MIN 2000

#define	COAP_CLIENT_ACK_TIMEOUT_MAX 3000

#define	COAP_CLIENT_RAND_DELAY_MIN 5000

#define	COAP_CLIENT_RAND_DELAY_MAX 15000

#define	COAP_CLIENT_DEFAULT_TOKEN_LEN 4

#define	COAP_CLIENT_PRIVATE_CONTEXT

#define	CoapClientContext struct _CoapClientContext

#define	CoapClientRequest struct _CoapClientRequest

Typedefs
typedef error_t(*	CoapClientDtlsInitCallback) (CoapClientContext context, TlsContext dtlsContext)
	DTLS initialization callback. More...

Enumerations
enum	CoapClientState { COAP_CLIENT_STATE_DISCONNECTED = 0, COAP_CLIENT_STATE_CONNECTING = 1, COAP_CLIENT_STATE_CONNECTED = 2 }
	CoAP client states. More...

Functions
error_t	coapClientInit (CoapClientContext *context)
	Initialize CoAP client context. More...

error_t	coapClientSetTransportProtocol (CoapClientContext *context, CoapTransportProtocol transportProtocol)
	Set the transport protocol to be used. More...

error_t	coapClientRegisterDtlsInitCallback (CoapClientContext *context, CoapClientDtlsInitCallback callback)
	Register DTLS initialization callback function. More...

error_t	coapClientSetTimeout (CoapClientContext *context, systime_t timeout)
	Set default request timeout. More...

error_t	coapClientSetTokenLength (CoapClientContext *context, size_t length)
	Set the length of the token. More...

error_t	coapClientBindToInterface (CoapClientContext context, NetInterface interface)
	Bind the CoAP client to a particular network interface. More...

error_t	coapClientConnect (CoapClientContext context, const IpAddr serverIpAddr, uint16_t serverPort)
	Establish connection with the CoAP server. More...

error_t	coapClientTask (CoapClientContext *context, systime_t timeout)
	Process CoAP client events. More...

error_t	coapClientDisconnect (CoapClientContext *context)
	Disconnect from the CoAP server. More...

void	coapClientDeinit (CoapClientContext *context)
	Release CoAP client context. More...

Detailed Description

CoAP client.

License

SPDX-License-Identifier: GPL-2.0-or-later

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author: Oryx Embedded SARL (www.oryx-embedded.com)

Version: 2.4.4

Definition in file coap_client.h.

Macro Definition Documentation

◆ COAP_CLIENT_ACK_TIMEOUT_MAX

#define COAP_CLIENT_ACK_TIMEOUT_MAX 3000

Definition at line 105 of file coap_client.h.

◆ COAP_CLIENT_ACK_TIMEOUT_MIN

#define COAP_CLIENT_ACK_TIMEOUT_MIN 2000

Definition at line 98 of file coap_client.h.

◆ COAP_CLIENT_BLOCK_SUPPORT

#define COAP_CLIENT_BLOCK_SUPPORT ENABLED

Definition at line 63 of file coap_client.h.

◆ COAP_CLIENT_DEFAULT_TIMEOUT

#define COAP_CLIENT_DEFAULT_TIMEOUT 20000

Definition at line 77 of file coap_client.h.

◆ COAP_CLIENT_DEFAULT_TOKEN_LEN

#define COAP_CLIENT_DEFAULT_TOKEN_LEN 4

Definition at line 126 of file coap_client.h.

◆ COAP_CLIENT_DTLS_SUPPORT

#define COAP_CLIENT_DTLS_SUPPORT DISABLED

Definition at line 49 of file coap_client.h.

◆ COAP_CLIENT_MAX_RETRANSMIT

#define COAP_CLIENT_MAX_RETRANSMIT 4

Definition at line 91 of file coap_client.h.

◆ COAP_CLIENT_NSTART

#define COAP_CLIENT_NSTART 1

Definition at line 84 of file coap_client.h.

◆ COAP_CLIENT_OBSERVE_SUPPORT

#define COAP_CLIENT_OBSERVE_SUPPORT ENABLED

Definition at line 56 of file coap_client.h.

◆ COAP_CLIENT_PRIVATE_CONTEXT

#define COAP_CLIENT_PRIVATE_CONTEXT

Definition at line 133 of file coap_client.h.

◆ COAP_CLIENT_RAND_DELAY_MAX

#define COAP_CLIENT_RAND_DELAY_MAX 15000

Definition at line 119 of file coap_client.h.

◆ COAP_CLIENT_RAND_DELAY_MIN

#define COAP_CLIENT_RAND_DELAY_MIN 5000

Definition at line 112 of file coap_client.h.

◆ COAP_CLIENT_SUPPORT

#define COAP_CLIENT_SUPPORT ENABLED

Definition at line 42 of file coap_client.h.

◆ COAP_CLIENT_TICK_INTERVAL

#define COAP_CLIENT_TICK_INTERVAL 100

Definition at line 70 of file coap_client.h.

◆ CoapClientContext

#define CoapClientContext struct _CoapClientContext

Definition at line 144 of file coap_client.h.

◆ CoapClientRequest

#define CoapClientRequest struct _CoapClientRequest

Definition at line 148 of file coap_client.h.

Typedef Documentation

◆ CoapClientDtlsInitCallback

typedef error_t(* CoapClientDtlsInitCallback) (CoapClientContext *context, TlsContext *dtlsContext)

DTLS initialization callback.

Definition at line 178 of file coap_client.h.

Enumeration Type Documentation

◆ CoapClientState

enum CoapClientState

CoAP client states.

Enumerator
COAP_CLIENT_STATE_DISCONNECTED
COAP_CLIENT_STATE_CONNECTING
COAP_CLIENT_STATE_CONNECTED

Definition at line 163 of file coap_client.h.

Function Documentation

◆ coapClientBindToInterface()

error_t coapClientBindToInterface	(	CoapClientContext *	context,
		NetInterface *	interface
	)

Bind the CoAP client to a particular network interface.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	interface	Network interface to be used

Returns: Error code

Definition at line 240 of file coap_client.c.

◆ coapClientConnect()

error_t coapClientConnect	(	CoapClientContext *	context,
		const IpAddr *	serverIpAddr,
		uint16_t	serverPort
	)

Establish connection with the CoAP server.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	serverIpAddr	IP address of the CoAP server to connect to
[in]	serverPort	UDP port number that will be used

Returns: Error code

Definition at line 267 of file coap_client.c.

◆ coapClientDeinit()

void coapClientDeinit ( CoapClientContext * context )

Release CoAP client context.

Parameters

[in] context Pointer to the CoAP client context

Definition at line 438 of file coap_client.c.

◆ coapClientDisconnect()

error_t coapClientDisconnect ( CoapClientContext * context )

Disconnect from the CoAP server.

Parameters

[in] context Pointer to the CoAP client context

Returns: Error code

Definition at line 399 of file coap_client.c.

◆ coapClientInit()

error_t coapClientInit ( CoapClientContext * context )

Initialize CoAP client context.

Parameters

[in] context Pointer to the CoAP client context

Returns: Error code

Definition at line 53 of file coap_client.c.

◆ coapClientRegisterDtlsInitCallback()

error_t coapClientRegisterDtlsInitCallback	(	CoapClientContext *	context,
		CoapClientDtlsInitCallback	callback
	)

Register DTLS initialization callback function.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	callback	DTLS initialization callback function

Returns: Error code

Definition at line 158 of file coap_client.c.

◆ coapClientSetTimeout()

error_t coapClientSetTimeout	(	CoapClientContext *	context,
		systime_t	timeout
	)

Set default request timeout.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	timeout	Timeout value, in milliseconds

Returns: Error code

Definition at line 186 of file coap_client.c.

◆ coapClientSetTokenLength()

error_t coapClientSetTokenLength	(	CoapClientContext *	context,
		size_t	length
	)

Set the length of the token.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	length	Token length

Returns: Error code

Definition at line 211 of file coap_client.c.

◆ coapClientSetTransportProtocol()

error_t coapClientSetTransportProtocol	(	CoapClientContext *	context,
		CoapTransportProtocol	transportProtocol
	)

Set the transport protocol to be used.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	transportProtocol	Transport protocol to be used (UDP or DTLS)

Returns: Error code

Definition at line 130 of file coap_client.c.

◆ coapClientTask()

error_t coapClientTask	(	CoapClientContext *	context,
		systime_t	timeout
	)

Process CoAP client events.

Parameters

[in]	context	Pointer to the CoAP client context
[in]	timeout	Maximum time to wait before returning

Returns: Error code

Definition at line 373 of file coap_client.c.

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

License

Macro Definition Documentation

◆ COAP_CLIENT_ACK_TIMEOUT_MAX

◆ COAP_CLIENT_ACK_TIMEOUT_MIN

◆ COAP_CLIENT_BLOCK_SUPPORT

◆ COAP_CLIENT_DEFAULT_TIMEOUT

◆ COAP_CLIENT_DEFAULT_TOKEN_LEN

◆ COAP_CLIENT_DTLS_SUPPORT

◆ COAP_CLIENT_MAX_RETRANSMIT

◆ COAP_CLIENT_NSTART

◆ COAP_CLIENT_OBSERVE_SUPPORT

◆ COAP_CLIENT_PRIVATE_CONTEXT

◆ COAP_CLIENT_RAND_DELAY_MAX

◆ COAP_CLIENT_RAND_DELAY_MIN

◆ COAP_CLIENT_SUPPORT

◆ COAP_CLIENT_TICK_INTERVAL

◆ CoapClientContext

◆ CoapClientRequest

Typedef Documentation

◆ CoapClientDtlsInitCallback

Enumeration Type Documentation

◆ CoapClientState

Function Documentation

◆ coapClientBindToInterface()

◆ coapClientConnect()

◆ coapClientDeinit()

◆ coapClientDisconnect()

◆ coapClientInit()

◆ coapClientRegisterDtlsInitCallback()

◆ coapClientSetTimeout()

◆ coapClientSetTokenLength()

◆ coapClientSetTransportProtocol()

◆ coapClientTask()