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https://github.com/nmap/nmap.git
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137 lines
7.7 KiB
C++
137 lines
7.7 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) 1996-2022 Nmap Software LLC ("The Nmap *
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* Project"). Nmap is also a registered trademark of the Nmap Project. *
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* *
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* This program is distributed under the terms of the Nmap Public Source *
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* License (NPSL). The exact license text applying to a particular Nmap *
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* release or source code control revision is contained in the LICENSE *
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* file distributed with that version of Nmap or source code control *
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* revision. More Nmap copyright/legal information is available from *
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* https://nmap.org/book/man-legal.html, and further information on the *
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* NPSL license itself can be found at https://nmap.org/npsl/ . This *
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* header summarizes some key points from the Nmap license, but is no *
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* substitute for the actual license text. *
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* *
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* Nmap is generally free for end users to download and use themselves, *
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* including commercial use. It is available from https://nmap.org. *
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* *
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* The Nmap license generally prohibits companies from using and *
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* redistributing Nmap in commercial products, but we sell a special Nmap *
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* OEM Edition with a more permissive license and special features for *
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* this purpose. See https://nmap.org/oem/ *
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* *
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* If you have received a written Nmap license agreement or contract *
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* stating terms other than these (such as an Nmap OEM license), you may *
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* choose to use and redistribute Nmap under those terms instead. *
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* *
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* The official Nmap Windows builds include the Npcap software *
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* (https://npcap.com) for packet capture and transmission. It is under *
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* separate license terms which forbid redistribution without special *
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* permission. So the official Nmap Windows builds may not be *
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* redistributed without special permission (such as an Nmap OEM *
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* license). *
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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 submit your *
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* changes as a Github PR or by email to the dev@nmap.org mailing list *
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* for possible incorporation into the main distribution. Unless you *
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* specify otherwise, it is understood that you are offering us very *
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* broad rights to use your submissions as described in the Nmap Public *
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* Source License Contributor Agreement. This is important because we *
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* fund the project by selling licenses with various terms, and also *
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* because the inability to relicense code has caused devastating *
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* problems for other Free Software projects (such as KDE and NASM). *
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* *
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* The free version of Nmap is distributed in the hope that it will be *
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties, *
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* indemnification and commercial support are all available through the *
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* Npcap OEM program--see https://nmap.org/oem/ *
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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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u16 getEtherType() const;
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};
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#endif
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