mirror of
https://github.com/akuker/RASCSI.git
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75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator RaSCSI Reloaded
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// for Raspberry Pi
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//
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// Powered by XM6 TypeG Technology.
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// Copyright (C) 2016-2020 GIMONS
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// Copyright (C) akuker
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//
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// [ TAP Driver ]
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//
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//---------------------------------------------------------------------------
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#pragma once
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#include <pcap/pcap.h>
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#include "filepath.h"
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#include <unordered_map>
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#include <list>
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#include <string>
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#ifndef ETH_FRAME_LEN
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#define ETH_FRAME_LEN 1514
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#endif
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using namespace std;
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//===========================================================================
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//
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// Linux Tap Driver
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//
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//===========================================================================
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class CTapDriver
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{
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private:
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friend class SCSIDaynaPort;
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friend class SCSIBR;
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CTapDriver() = default;
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~CTapDriver() = default;
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CTapDriver(CTapDriver&) = delete;
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CTapDriver& operator=(const CTapDriver&) = delete;
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bool Init(const unordered_map<string, string>&);
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public:
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void OpenDump(const Filepath& path);
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// Capture packets
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void Cleanup(); // Cleanup
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void GetMacAddr(BYTE *mac); // Get Mac Address
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int Rx(BYTE *buf); // Receive
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int Tx(const BYTE *buf, int len); // Send
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bool PendingPackets(); // Check if there are IP packets available
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bool Enable(); // Enable the ras0 interface
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bool Disable(); // Disable the ras0 interface
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void Flush(); // Purge all of the packets that are waiting to be processed
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private:
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BYTE m_MacAddr[6] = {}; // MAC Address
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int m_hTAP = -1; // File handle
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BYTE m_garbage_buffer[ETH_FRAME_LEN];
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pcap_t *m_pcap = nullptr;
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pcap_dumper_t *m_pcap_dumper = nullptr;
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// Prioritized comma-separated list of interfaces to create the bridge for
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list<string> interfaces;
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string inet;
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};
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