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205 lines
13 KiB
C++
205 lines
13 KiB
C++
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/***************************************************************************
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* EthernetHeader.h -- The EthernetHeader Class represents an Ethernet *
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* header and footer. It contains methods to set the different header *
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* fields. These methods tipically perform the necessary error checks and *
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* byte order conversions. *
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* *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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* *
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* The Nmap Security Scanner is (C) 1996-2018 Insecure.Com LLC ("The Nmap *
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* Project"). Nmap is also a registered trademark of the Nmap Project. *
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* This program is free software; you may redistribute and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE *
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* CLARIFICATIONS AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your *
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* right to use, modify, and redistribute this software under certain *
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* conditions. If you wish to embed Nmap technology into proprietary *
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* software, we sell alternative licenses (contact sales@nmap.com). *
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* Dozens of software vendors already license Nmap technology such as *
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* host discovery, port scanning, OS detection, version detection, and *
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* the Nmap Scripting Engine. *
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* *
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* Note that the GPL places important restrictions on "derivative works", *
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* yet it does not provide a detailed definition of that term. To avoid *
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* misunderstandings, we interpret that term as broadly as copyright law *
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* allows. For example, we consider an application to constitute a *
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* derivative work for the purpose of this license if it does any of the *
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* following with any software or content covered by this license *
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* ("Covered Software"): *
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* *
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* o Integrates source code from Covered Software. *
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* *
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* o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
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* or nmap-service-probes. *
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* *
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* o Is designed specifically to execute Covered Software and parse the *
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* results (as opposed to typical shell or execution-menu apps, which will *
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* execute anything you tell them to). *
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* *
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* o Includes Covered Software in a proprietary executable installer. The *
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* installers produced by InstallShield are an example of this. Including *
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* Nmap with other software in compressed or archival form does not *
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* trigger this provision, provided appropriate open source decompression *
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* or de-archiving software is widely available for no charge. For the *
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* purposes of this license, an installer is considered to include Covered *
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* Software even if it actually retrieves a copy of Covered Software from *
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* another source during runtime (such as by downloading it from the *
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* Internet). *
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* *
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* o Links (statically or dynamically) to a library which does any of the *
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* above. *
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* *
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* o Executes a helper program, module, or script to do any of the above. *
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* *
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* This list is not exclusive, but is meant to clarify our interpretation *
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* of derived works with some common examples. Other people may interpret *
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* the plain GPL differently, so we consider this a special exception to *
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* the GPL that we apply to Covered Software. Works which meet any of *
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* these conditions must conform to all of the terms of this license, *
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* particularly including the GPL Section 3 requirements of providing *
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* source code and allowing free redistribution of the work as a whole. *
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* *
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* As another special exception to the GPL terms, the Nmap Project grants *
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* permission to link the code of this program with any version of the *
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* OpenSSL library which is distributed under a license identical to that *
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* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
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* linked combinations including the two. *
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* *
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* The Nmap Project has permission to redistribute Npcap, a packet *
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* capturing driver and library for the Microsoft Windows platform. *
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* Npcap is a separate work with it's own license rather than this Nmap *
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* license. Since the Npcap license does not permit redistribution *
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* without special permission, our Nmap Windows binary packages which *
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* contain Npcap may not be redistributed without special permission. *
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* *
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* Any redistribution of Covered Software, including any derived works, *
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* must obey and carry forward all of the terms of this license, including *
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* obeying all GPL rules and restrictions. For example, source code of *
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* the whole work must be provided and free redistribution must be *
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* allowed. All GPL references to "this License", are to be treated as *
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* including the terms and conditions of this license text as well. *
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* *
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* Because this license imposes special exceptions to the GPL, Covered *
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* Work may not be combined (even as part of a larger work) with plain GPL *
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* software. The terms, conditions, and exceptions of this license must *
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* be included as well. This license is incompatible with some other open *
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* source licenses as well. In some cases we can relicense portions of *
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* Nmap or grant special permissions to use it in other open source *
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* software. Please contact fyodor@nmap.org with any such requests. *
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* Similarly, we don't incorporate incompatible open source software into *
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* Covered Software without special permission from the copyright holders. *
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* *
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* If you have any questions about the licensing restrictions on using *
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* Nmap in other works, we are happy to help. As mentioned above, we also *
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* offer an alternative license to integrate Nmap into proprietary *
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* applications and appliances. These contracts have been sold to dozens *
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* of software vendors, and generally include a perpetual license as well *
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* as providing support and updates. They also fund the continued *
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* development of Nmap. Please email sales@nmap.com for further *
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* information. *
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* *
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* If you have received a written license agreement or contract for *
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* Covered Software stating terms other than these, you may choose to use *
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* and redistribute Covered Software under those terms instead of these. *
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* *
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* Source is provided to this software because we believe users have a *
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* right to know exactly what a program is going to do before they run it. *
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* This also allows you to audit the software for security holes. *
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* *
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* Source code also allows you to port Nmap to new platforms, fix bugs, *
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* and add new features. You are highly encouraged to send your changes *
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* to the dev@nmap.org mailing list for possible incorporation into the *
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* main distribution. By sending these changes to Fyodor or one of the *
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* Insecure.Org development mailing lists, or checking them into the Nmap *
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* source code repository, it is understood (unless you specify *
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* otherwise) that you are offering the Nmap Project the unlimited, *
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* non-exclusive right to reuse, modify, and relicense the code. Nmap *
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* will always be available Open Source, but this is important because *
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* the inability to relicense code has caused devastating problems for *
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* other Free Software projects (such as KDE and NASM). We also *
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* occasionally relicense the code to third parties as discussed above. *
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* If you wish to specify special license conditions of your *
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* contributions, just say so when you send them. *
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* *
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* This program is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap *
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* license file for more details (it's in a COPYING file included with *
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* Nmap, and also available from https://svn.nmap.org/nmap/COPYING) *
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* *
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***************************************************************************/
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/* This code was originally part of the Nping tool. */
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#ifndef ETHERNETHEADER_H
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#define ETHERNETHEADER_H 1
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#include "DataLinkLayerElement.h"
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/* Ether Types. (From RFC 5342 http://www.rfc-editor.org/rfc/rfc5342.txt) */
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#define ETHTYPE_IPV4 0x0800 /* Internet Protocol Version 4 */
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#define ETHTYPE_ARP 0x0806 /* Address Resolution Protocol */
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#define ETHTYPE_FRAMERELAY 0x0808 /* Frame Relay ARP */
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#define ETHTYPE_PPTP 0x880B /* Point-to-Point Tunneling Protocol */
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#define ETHTYPE_GSMP 0x880C /* General Switch Management Protocol */
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#define ETHTYPE_RARP 0x8035 /* Reverse Address Resolution Protocol */
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#define ETHTYPE_IPV6 0x86DD /* Internet Protocol Version 6 */
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#define ETHTYPE_MPLS 0x8847 /* MPLS */
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#define ETHTYPE_MPS_UAL 0x8848 /* MPLS with upstream-assigned label */
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#define ETHTYPE_MCAP 0x8861 /* Multicast Channel Allocation Protocol */
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#define ETHTYPE_PPPOE_D 0x8863 /* PPP over Ethernet Discovery Stage */
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#define ETHTYPE_PPOE_S 0x8864 /* PPP over Ethernet Session Stage */
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#define ETHTYPE_CTAG 0x8100 /* Customer VLAN Tag Type */
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#define ETHTYPE_EPON 0x8808 /* Ethernet Passive Optical Network */
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#define ETHTYPE_PBNAC 0x888E /* Port-based network access control */
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#define ETHTYPE_STAG 0x88A8 /* Service VLAN tag identifier */
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#define ETHTYPE_ETHEXP1 0x88B5 /* Local Experimental Ethertype */
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#define ETHTYPE_ETHEXP2 0x88B6 /* Local Experimental Ethertype */
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#define ETHTYPE_ETHOUI 0x88B7 /* OUI Extended Ethertype */
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#define ETHTYPE_PREAUTH 0x88C7 /* Pre-Authentication */
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#define ETHTYPE_LLDP 0x88CC /* Link Layer Discovery Protocol (LLDP) */
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#define ETHTYPE_MACSEC 0x88E5 /* Media Access Control Security */
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#define ETHTYPE_MVRP 0x88F5 /* Multiple VLAN Registration Protocol */
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#define ETHTYPE_MMRP 0x88F6 /* Multiple Multicast Registration Protocol */
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#define ETHTYPE_FRRR 0x890D /* Fast Roaming Remote Request */
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#define ETH_HEADER_LEN 14
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class EthernetHeader : public DataLinkLayerElement {
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private:
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struct nping_eth_hdr{
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u8 eth_dmac[6];
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u8 eth_smac[6];
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u16 eth_type;
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}__attribute__((__packed__));
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typedef struct nping_eth_hdr nping_eth_hdr_t;
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nping_eth_hdr_t h;
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public:
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EthernetHeader();
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~EthernetHeader();
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void reset();
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u8 *getBufferPointer();
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int storeRecvData(const u8 *buf, size_t len);
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int protocol_id() const;
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int validate();
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int print(FILE *output, int detail) const;
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int setSrcMAC(const u8 *m);
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const u8 *getSrcMAC() const;
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int setDstMAC(u8 *m);
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const u8 *getDstMAC() const;
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int setEtherType(u16 val);
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const u16 getEtherType() const;
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};
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#endif
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