mirror of
https://github.com/mfontanini/libtins
synced 2026-01-24 11:11:35 +01:00
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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* libtins is a net packet wrapper library for crafting and
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* interpreting sniffed packets.
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*
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* Copyright (C) 2011 Nasel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __ARP_H
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#define __ARP_H
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#include <string>
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#include "pdu.h"
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namespace Tins {
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/**
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* \brief Class that represents an ARP PDU.
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*
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*/
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class ARP : public PDU {
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public:
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/**
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* \brief Enum which indicates the type of ARP packet.
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*/
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enum Flags {
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REQUEST = 0x0100,
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REPLY = 0x0200
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};
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/**
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* \brief Default constructor for ARP PDU objects.
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*/
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ARP();
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/* Getters */
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/**
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* \brief Getter for the sender's hardware's address.
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*
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* \return The hardware address of the sender in an uint8_t*.
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*/
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inline const uint8_t* sender_hw_address() { return this->_arp.ar_sha; }
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PDUType pdu_type() const { return PDU::ARP; }
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void set_arp_request(const std::string &ip_dst, const std::string &ip_src, const std::string &hw_src = "");
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uint32_t header_size() const;
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private:
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struct arphdr {
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uint16_t ar_hrd; /* format of hardware address */
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uint16_t ar_pro; /* format of protocol address */
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uint8_t ar_hln; /* length of hardware address */
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uint8_t ar_pln; /* length of protocol address */
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uint16_t ar_op; /* ARP opcode (command) */
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uint8_t ar_sha[6]; /* sender hardware address */
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uint32_t ar_sip; /* sender IP address */
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uint8_t ar_tha[6]; /* target hardware address */
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uint32_t ar_tip; /* target IP address */
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} __attribute__((__packed__));
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void write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *parent);
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arphdr _arp;
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};
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};
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#endif
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