/*************************************************************************** * PacketParser.h -- The PacketParser Class offers methods to parse * * received network packets. Its main purpose is to facilitate the * * conversion of raw sequences of bytes into chains of objects of the * * PacketElement family. * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2012 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 with the clarifications and exceptions described * * below. 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@insecure.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 "derived 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: * * o Integrates source code from Nmap * * o Reads or includes Nmap copyrighted data files, such as * * nmap-os-db or nmap-service-probes. * * o Executes Nmap and parses the results (as opposed to typical shell or * * execution-menu apps, which simply display raw Nmap output and so are * * not derivative works.) * * o Integrates/includes/aggregates Nmap into a proprietary executable * * installer, such as those produced by InstallShield. * * o Links to a library or executes a program that does any of the above * * * * The term "Nmap" should be taken to also include any portions or derived * * works of Nmap, as well as other software we distribute under this * * license such as Zenmap, Ncat, and Nping. This list is not exclusive, * * but is meant to clarify our interpretation of derived works with some * * common examples. 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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 __PACKETPARSER_H__ #define __PACKETPARSER_H__ 1 #include "ApplicationLayerElement.h" #include "ARPHeader.h" #include "DataLinkLayerElement.h" #include "EthernetHeader.h" #include "ICMPHeader.h" #include "ICMPv4Header.h" #include "ICMPv6Header.h" #include "ICMPv6Option.h" #include "ICMPv6RRBody.h" #include "IPv4Header.h" #include "IPv6Header.h" #include "NetworkLayerElement.h" #include "PacketElement.h" #include "RawData.h" #include "TCPHeader.h" #include "TransportLayerElement.h" #include "UDPHeader.h" #include "HopByHopHeader.h" #include "DestOptsHeader.h" #include "FragmentHeader.h" #include "RoutingHeader.h" #define LINK_LAYER 2 #define NETWORK_LAYER 3 #define TRANSPORT_LAYER 4 #define APPLICATION_LAYER 5 #define EXTHEADERS_LAYER 6 typedef struct header_type_string{ u32 type; const char *str; }header_type_string_t; typedef struct packet_type{ u32 type; u32 length; }pkt_type_t; class PacketParser { private: public: /* Misc */ PacketParser(); ~PacketParser(); void reset(); static const char *header_type2string(int val); static pkt_type_t *parse_packet(const u8 *pkt, size_t pktlen, bool eth_included); static int dummy_print_packet_type(const u8 *pkt, size_t pktlen, bool eth_included); /* TODO: remove */ static int dummy_print_packet(const u8 *pkt, size_t pktlen, bool eth_included); /* TODO: remove */ static int payload_offset(const u8 *pkt, size_t pktlen, bool link_included); static PacketElement *split(const u8 *pkt, size_t pktlen, bool eth_included); static PacketElement *split(const u8 *pkt, size_t pktlen); static int freePacketChain(PacketElement *first); static const char *test_packet_parser(PacketElement *test_pkt); static bool is_response(PacketElement *sent, PacketElement *rcvd); }; /* End of class PacketParser */ #endif /* __PACKETPARSER_H__ */