forward_proxy_internal.h

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/*
 * Copyright (C) 2024 ML!PA Consulting GmbH
 *
 * 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

 
#include <stdint.h>
#include "net/coap.h"
#include "net/gcoap.h"
#include "net/sock/udp.h"
#include "ztimer.h"
#include "event.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    coap_pkt_t pdu;                         
    sock_udp_ep_t server_ep;                
    sock_udp_ep_t ep;                       
    sock_udp_ep_t proxy_ep;                 
    uint16_t mid;                           
    uint8_t flags;                          
#if IS_USED(MODULE_NANOCOAP_CACHE)
    uint8_t req_etag[COAP_ETAG_LENGTH_MAX]; 
#endif
    ztimer_t empty_ack_timer;               
    event_t event;                          
} client_ep_t;

#ifndef GCOAP_PROXY_STACK_SIZE
#define GCOAP_PROXY_STACK_SIZE (THREAD_STACKSIZE_DEFAULT + DEBUG_EXTRA_STACKSIZE \
                                + sizeof(coap_pkt_t) + GCOAP_DTLS_EXTRA_STACKSIZE)
#endif

enum {
    GCOAP_FORWARD_PROXY_MSG_SEND,
};

void gcoap_forward_proxy_thread_init(void);

int gcoap_forward_proxy_req_send(client_ep_t *cep);
 
#ifdef __cplusplus
}
#endif