lwm2m_client.h

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/*
 * Copyright (C) 2019 HAW Hamburg
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/time.h>
 
#include "periph/pm.h"
#include "net/sock/udp.h"
 
#if IS_USED(MODULE_WAKAAMA_CLIENT_DTLS)
#include "net/sock/dtls.h"
#endif
 
#include "lwm2m_client_config.h"
#include "liblwm2m.h"

typedef enum {
    LWM2M_CLIENT_CONN_UDP,      
    LWM2M_CLIENT_CONN_DTLS      
} lwm2m_client_connection_type_t;

typedef struct lwm2m_client_connection {
    struct lwm2m_client_connection *next; 
    sock_udp_ep_t remote;                 
#if IS_USED(MODULE_WAKAAMA_CLIENT_DTLS) || DOXYGEN
    sock_dtls_session_t session;          
#endif
    lwm2m_client_connection_type_t type;  
    time_t last_send;                     
} lwm2m_client_connection_t;

typedef struct {
    kernel_pid_t pid;              
    sock_udp_t sock;               
#if IS_USED(MODULE_WAKAAMA_CLIENT_DTLS)
    sock_udp_t dtls_udp_sock;      
    sock_dtls_t dtls_sock;         
    sock_udp_ep_t dtls_local_ep;   
#endif
    sock_udp_ep_t local_ep;        
    lwm2m_context_t *lwm2m_ctx;    
    lwm2m_client_connection_t *conn_list; 
} lwm2m_client_data_t;

#define LWM2M_CLIENT_RCV_BUFFER_SIZE  (200)

#define LWM2M_CLIENT_REBOOT_TIME  (5)

#define LWM2M_CLIENT_MIN_REFRESH_TIME   (1)

lwm2m_context_t *lwm2m_client_run(lwm2m_client_data_t *client_data,
                                   lwm2m_object_t *obj_list[],
                                   uint16_t obj_numof);

void lwm2m_client_init(lwm2m_client_data_t *client_data);

static inline lwm2m_context_t *lwm2m_client_get_ctx(
                                    lwm2m_client_data_t *client_data)
{
    return client_data->lwm2m_ctx;
}
 
#if IS_USED(MODULE_WAKAAMA_CLIENT_DTLS) || defined(DOXYGEN)
void lwm2m_client_refresh_dtls_credentials(void);

void lwm2m_client_add_credential(credman_tag_t tag);

void lwm2m_client_remove_credential(credman_tag_t tag);
#endif /*  MODULE_WAKAAMA_CLIENT_DTLS || DOXYGEN */
 
#ifdef __cplusplus
}
#endif