ardupilot/libraries/AP_Networking/AP_Networking_PPP.h

#pragma once

#include "AP_Networking_Config.h"

#ifdef AP_NETWORKING_BACKEND_PPP
#include "AP_Networking_Backend.h"

class AP_Networking_PPP : public AP_Networking_Backend
{
public:
    using AP_Networking_Backend::AP_Networking_Backend;

    /* Do not allow copies */
    CLASS_NO_COPY(AP_Networking_PPP);

    bool init() override;

private:
    void ppp_loop(void);

    AP_HAL::UARTDriver *uart;
    struct netif *pppif;
    struct ppp_pcb_s *ppp;
    bool need_restart;

    static void ppp_status_callback(struct ppp_pcb_s *pcb, int code, void *ctx);
    static uint32_t ppp_output_cb(struct ppp_pcb_s *pcb, const void *data, uint32_t len, void *ctx);
};

#endif // AP_NETWORKING_BACKEND_PPP