/*************************************************************************** * osscan.h -- Routines used for OS detection via TCP/IP fingerprinting. * * For more information on how this works in Nmap, see my paper at * * http://nmap.org/osdetect/ * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2009 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, and version detection. * * * * 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 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. 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 GNU * * General Public License v2.0 for more details at * * http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file * * included with Nmap. * * * ***************************************************************************/ /* $Id$ */ #ifndef OSSCAN_H #define OSSCAN_H #include "nmap.h" #include "global_structures.h" #include "FingerPrintResults.h" #include "Target.h" #define OSSCAN_SUCCESS 0 #define OSSCAN_NOMATCHES -1 #define OSSCAN_TOOMANYMATCHES -2 /* We won't even consider matches with a lower accuracy than this */ #define OSSCAN_GUESS_THRESHOLD 0.85 /********************** STRUCTURES ***********************************/ /* moved to global_structures.h */ /********************** PROTOTYPES ***********************************/ const char *fp2ascii(FingerPrint *FP); /* Parses a single fingerprint from the memory region given. If a non-null fingerprint is returned, the user is in charge of freeing it when done. This function does not require the fingerprint to be 100% complete since it is used by scripts such as scripts/fingerwatch for which some partial fingerpritns are OK. */ FingerPrint *parse_single_fingerprint(char *fprint_orig); /* These functions take a file/db name and open+parse it, returning an (allocated) FingerPrintDB containing the results. They exit with an error message in the case of error. */ FingerPrintDB *parse_fingerprint_file(const char *fname); FingerPrintDB *parse_fingerprint_reference_file(const char *dbname); void free_fingerprint_file(FingerPrintDB *DB); /* Compares 2 fingerprints -- a referenceFP (can have expression attributes) with an observed fingerprint (no expressions). If verbose is nonzero, differences will be printed. The comparison accuracy (between 0 and 1) is returned). If MatchPoints is not NULL, it is a special "fingerprints" which tells how many points each test is worth. */ double compare_fingerprints(FingerPrint *referenceFP, FingerPrint *observedFP, FingerPrint *MatchPoints, int verbose); /* Takes a fingerprint and looks for matches inside the passed in reference fingerprint DB. The results are stored in in FPR (which must point to an instantiated FingerPrintResults class) -- results will be reverse-sorted by accuracy. No results below accuracy_threshhold will be included. The max matches returned is the maximum that fits in a FingerPrintResults class. */ void match_fingerprint(FingerPrint *FP, FingerPrintResults *FPR, FingerPrintDB *DB, double accuracy_threshold); /* Returns true if perfect match -- if num_subtests & num_subtests_succeeded are non_null it updates them. if shortcircuit is zero, it does all the tests, otherwise it returns when the first one fails */ void freeFingerPrint(FingerPrint *FP); const char *mergeFPs(FingerPrint *FPs[], int numFPs, bool isGoodFP, const struct in_addr * const addr, int distance, enum dist_calc_method distance_calculation_method, const u8 *mac, int openTcpPort, int closedTcpPort, int closedUdpPort, bool wrapit); #endif /*OSSCAN_H*/