/*************************************************************************** * ARPHeader.h -- The ARPHeader Class represents an ARP packet. It * * contains methods to set any header field. In general, these methods do * * error checkings and byte order conversion. * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2015 Insecure.Com LLC. Nmap is * * also a registered trademark of Insecure.Com LLC. This program is free * * software; you may redistribute and/or modify it under the terms of the * * GNU General Public License as published by the Free Software * * Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE CLARIFICATIONS * * AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your right to use, * * modify, and redistribute this software under certain conditions. If * * you wish to embed Nmap technology into proprietary software, we sell * * alternative licenses (contact sales@nmap.com). Dozens of software * * vendors already license Nmap technology such as host discovery, port * * scanning, OS detection, version detection, and the Nmap Scripting * * Engine. * * * * Note that the GPL places important restrictions on "derivative works", * * yet it does not provide a detailed definition of that term. To avoid * * misunderstandings, we interpret that term as broadly as copyright law * * allows. For example, we consider an application to constitute a * * derivative work for the purpose of this license if it does any of the * * following with any software or content covered by this license * * ("Covered Software"): * * * * o Integrates source code from Covered Software. * * * * o Reads or includes copyrighted data files, such as Nmap's nmap-os-db * * or nmap-service-probes. * * * * o Is designed specifically to execute Covered Software and parse the * * results (as opposed to typical shell or execution-menu apps, which will * * execute anything you tell them to). * * * * o Includes Covered Software in a proprietary executable installer. The * * installers produced by InstallShield are an example of this. Including * * Nmap with other software in compressed or archival form does not * * trigger this provision, provided appropriate open source decompression * * or de-archiving software is widely available for no charge. For the * * purposes of this license, an installer is considered to include Covered * * Software even if it actually retrieves a copy of Covered Software from * * another source during runtime (such as by downloading it from the * * Internet). * * * * o Links (statically or dynamically) to a library which does any of the * * above. * * * * o Executes a helper program, module, or script to do any of the above. * * * * This list is not exclusive, but is meant to clarify our interpretation * * of derived works with some common examples. Other people may interpret * * the plain GPL differently, so we consider this a special exception to * * the GPL that we apply to Covered Software. Works which meet any of * * these conditions must conform to all of the terms of this license, * * particularly including the GPL Section 3 requirements of providing * * source code and allowing free redistribution of the work as a whole. * * * * As another special exception to the GPL terms, Insecure.Com LLC grants * * permission to link the code of this program with any version of the * * OpenSSL library which is distributed under a license identical to that * * listed in the included docs/licenses/OpenSSL.txt file, and distribute * * linked combinations including the two. * * * * Any redistribution of Covered Software, including any derived works, * * must obey and carry forward all of the terms of this license, including * * obeying all GPL rules and restrictions. For example, source code of * * the whole work must be provided and free redistribution must be * * allowed. All GPL references to "this License", are to be treated as * * including the terms and conditions of this license text as well. * * * * Because this license imposes special exceptions to the GPL, Covered * * Work may not be combined (even as part of a larger work) with plain GPL * * software. The terms, conditions, and exceptions of this license must * * be included as well. This license is incompatible with some other open * * source licenses as well. In some cases we can relicense portions of * * Nmap or grant special permissions to use it in other open source * * software. Please contact fyodor@nmap.org with any such requests. * * Similarly, we don't incorporate incompatible open source software into * * Covered Software without special permission from the copyright holders. * * * * If you have any questions about the licensing restrictions on using * * Nmap in other works, are happy to help. As mentioned above, we also * * offer alternative license to integrate Nmap into proprietary * * applications and appliances. These contracts have been sold to dozens * * of software vendors, and generally include a perpetual license as well * * as providing for priority support and updates. They also fund the * * continued development of Nmap. Please email sales@nmap.com for further * * information. * * * * If you have received a written license agreement or contract for * * Covered Software stating terms other than these, you may choose to use * * and redistribute Covered Software under those terms instead of these. * * * * Source is provided to this software because we believe users have a * * right to know exactly what a program is going to do before they run it. * * This also allows you to audit the software for security holes. * * * * Source code also allows you to port Nmap to new platforms, fix bugs, * * and add new features. You are highly encouraged to send your changes * * to the dev@nmap.org mailing list for possible incorporation into the * * main distribution. By sending these changes to Fyodor or one of the * * Insecure.Org development mailing lists, or checking them into the Nmap * * source code repository, it is understood (unless you specify otherwise) * * that you are offering the Nmap Project (Insecure.Com LLC) the * * unlimited, non-exclusive right to reuse, modify, and relicense the * * code. Nmap will always be available Open Source, but this is important * * because the inability to relicense code has caused devastating problems * * for other Free Software projects (such as KDE and NASM). We also * * occasionally relicense the code to third parties as discussed above. * * If you wish to specify special license conditions of your * * contributions, just say so when you send them. * * * * This program is distributed in the hope that it will be useful, but * * WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap * * license file for more details (it's in a COPYING file included with * * Nmap, and also available from https://svn.nmap.org/nmap/COPYING) * * * ***************************************************************************/ /* This code was originally part of the Nping tool. */ #ifndef __ARPHEADER_H__ #define __ARPHEADER_H__ 1 #include "NetworkLayerElement.h" /* Lengths */ #define ARP_HEADER_LEN 28 #define IPv4_ADDRESS_LEN 4 #define ETH_ADDRESS_LEN 6 /* Hardware Types */ #define HDR_RESERVED 0 /* [RFC5494] */ #define HDR_ETH10MB 1 /* Ethernet (10Mb) */ #define HDR_ETH3MB 2 /* Experimental Ethernet (3Mb) */ #define HDR_AX25 3 /* Amateur Radio AX.25 */ #define HDR_PRONET_TR 4 /* Proteon ProNET Token Ring */ #define HDR_CHAOS 5 /* Chaos */ #define HDR_IEEE802 6 /* IEEE 802 Networks */ #define HDR_ARCNET 7 /* ARCNET [RFC1201] */ #define HDR_HYPERCHANNEL 8 /* Hyperchannel */ #define HDR_LANSTAR 9 /* Lanstar */ #define HDR_AUTONET 10 /* Autonet Short Address */ #define HDR_LOCALTALK 11 /* LocalTalk */ #define HDR_LOCALNET 12 /* LocalNet (IBM PCNet or SYTEK LocalNET) */ #define HDR_ULTRALINK 13 /* Ultra link */ #define HDR_SMDS 14 /* SMDS */ #define HDR_FRAMERELAY 15 /* Frame Relay */ #define HDR_ATM 16 /* Asynchronous Transmission Mode (ATM) */ #define HDR_HDLC 17 /* HDLC */ #define HDR_FIBRE 18 /* Fibre Channel [RFC4338] */ #define HDR_ATMb 19 /* Asynchronous Transmission Mode (ATM) */ #define HDR_SERIAL 20 /* Serial Line */ #define HDR_ATMc 21 /* Asynchronous Transmission Mode [RFC2225] */ #define HDR_MILSTD 22 /* MIL-STD-188-220 */ #define HDR_METRICOM 23 /* Metricom */ #define HDR_IEEE1394 24 /* IEEE 1394.199 */ #define HDR_MAPOS 25 /* MAPOS [RFC2176] */ #define HDR_TWINAXIAL 26 /* Twinaxial */ #define HDR_EUI64 27 /* EUI-64 */ #define HDR_HIPARP 28 /* HIPARP */ #define HDR_ISO7816 29 /* IP and ARP over ISO 7816-3 */ #define HDR_ARPSEC 30 /* ARPSec */ #define HDR_IPSEC 31 /* IPsec tunnel */ #define HDR_INFINIBAND 32 /* InfiniBand (TM) */ #define HDR_TIA102 33 /* TIA-102 Project 25 Common Air Interface */ #define HDR_WIEGAND 34 /* Wiegand Interface */ #define HDR_PUREIP 35 /* Pure IP */ #define HDR_HW_EXP1 36 /* HW_EXP1 [RFC5494] */ #define HDR_HW_EXP2 37 /* HW_EXP2 [RFC5494] */ /* Operation Codes */ #define OP_ARP_REQUEST 1 /* ARP Request */ #define OP_ARP_REPLY 2 /* ARP Reply */ #define OP_RARP_REQUEST 3 /* Reverse ARP Request */ #define OP_RARP_REPLY 4 /* Reverse ARP Reply */ #define OP_DRARP_REQUEST 5 /* DRARP-Request */ #define OP_DRARP_REPLY 6 /* DRARP-Reply */ #define OP_DRARP_ERROR 7 /* DRARP-Error */ #define OP_INARP_REQUEST 8 /* InARP-Request */ #define OP_INARP_REPLY 9 /* InARP-Reply */ #define OP_ARPNAK 10 /* ARP-NAK */ #define OP_MARS_REQUEST 11 /* MARS-Request */ #define OP_MARS_MULTI 12 /* MARS-Multi */ #define OP_MARS_MSERV 13 /* MARS-MServ */ #define OP_MARS_JOIN 14 /* MARS-Join */ #define OP_MARS_LEAVE 15 /* MARS-Leave */ #define OP_MARS_NAK 16 /* MARS-NAK */ #define OP_MARS_UNSERV 17 /* MARS-Unserv */ #define OP_MARS_SJOIN 18 /* MARS-SJoin */ #define OP_MARS_SLEAVE 19 /* MARS-SLeave */ #define OP_MARS_GL_REQ 20 /* MARS-Grouplist-Request */ #define OP_MARS_GL_REP 21 /* MARS-Grouplist-Reply */ #define OP_MARS_REDIR_MAP 22 /* MARS-Redirect-Map */ #define OP_MAPOS_UNARP 23 /* MAPOS-UNARP [RFC2176] */ #define OP_EXP1 24 /* OP_EXP1 [RFC5494] */ #define OP_EXP2 25 /* OP_EXP2 [RFC5494] */ #define OP_RESERVED 65535 /* Reserved [RFC5494] */ /* TODO @todo: getTargetIP() and getSenderIP() should either * return struct in_addr or IPAddress but not u32. */ class ARPHeader : public NetworkLayerElement { private: struct nping_arp_hdr{ u16 ar_hrd; /* Hardware Type. */ u16 ar_pro; /* Protocol Type. */ u8 ar_hln; /* Hardware Address Length. */ u8 ar_pln; /* Protocol Address Length. */ u16 ar_op; /* Operation Code. */ u8 data[20]; // Cannot use these because the four-flushing alignment screws up // everything. I miss ANSI C. //u8 ar_sha[6]; /* Sender Hardware Address. */ //u32 ar_sip; /* Sender Protocol Address (IPv4 address). */ //u8 ar_tha[6]; /* Target Hardware Address. */ //u32 ar_tip; /* Target Protocol Address (IPv4 address). */ }__attribute__((__packed__)); typedef struct nping_arp_hdr nping_arp_hdr_t; nping_arp_hdr_t h; public: /* Misc */ ARPHeader(); ~ARPHeader(); void reset(); u8 *getBufferPointer(); int storeRecvData(const u8 *buf, size_t len); int protocol_id() const; int validate(); int print(FILE *output, int detail) const; /* Hardware Type */ int setHardwareType(u16 t); int setHardwareType(); u16 getHardwareType(); /* Protocol Type */ int setProtocolType(u16 t); int setProtocolType(); u16 getProtocolType(); /* Hardware Address Length */ int setHwAddrLen(u8 v); int setHwAddrLen(); u8 getHwAddrLen(); /* Hardware Address Length */ int setProtoAddrLen(u8 v); int setProtoAddrLen(); u8 getProtoAddrLen(); /* Operation Code */ int setOpCode(u16 c); u16 getOpCode(); /* Sender Hardware Address */ int setSenderMAC(const u8 *m); u8 *getSenderMAC(); /* Sender Protocol address */ int setSenderIP(struct in_addr i); u32 getSenderIP(); /* Target Hardware Address */ int setTargetMAC(u8 *m); u8 *getTargetMAC(); /* Target Protocol Address */ int setTargetIP(struct in_addr i); u32 getTargetIP(); }; /* End of class ARPHeader */ #endif /* __ARPHEADER_H__ */