hal_pcap.h

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// Copyright 2021-2025 The Aerospace Corporation.
// This file is a part of SatCat5, licensed under CERN-OHL-W v2 or later.
 
#pragma once
 
#include <deque>
#include <string>
#include <satcat5/ethernet.h>
#include <satcat5/io_buffer.h>
#include <satcat5/polling.h>
 
namespace satcat5 {
    namespace pcap {
        struct Device;
 
        class Socket
            : public satcat5::io::BufferedIO
            , protected satcat5::poll::Always
        {
        public:
            explicit Socket(
                const char* ifname,
                unsigned bsize=65536,
                satcat5::eth::MacType filter = satcat5::eth::ETYPE_NONE);
            virtual ~Socket();
 
            bool ok() const;
 
            // Other useful info.
            const char* name() const;   
            const char* desc() const;   
 
        protected:
            void data_rcvd(satcat5::io::Readable* src) override;
            void poll_always() override;
 
            satcat5::pcap::Device* const m_device;
        };
 
        struct Descriptor {
            Descriptor(const char* n, const char* d);
 
            std::string name;   
            std::string desc;   
        };
        typedef std::deque<satcat5::pcap::Descriptor> DescriptorList;
 
        satcat5::pcap::DescriptorList list_all_devices();
 
        bool is_device(const char* ifname);
 
        std::string prompt_for_ifname();
    }
}