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171 lines
10 KiB
C
171 lines
10 KiB
C
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/***************************************************************************
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* osscan.h -- Routines used for OS detection via TCP/IP fingerprinting. *
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* For more information on how this works in Nmap, see my paper at *
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* http://www.insecure.org/nmap/nmap-fingerprinting-article.html *
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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) 1996-2004 Insecure.Com LLC. Nmap *
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* is also a registered trademark of Insecure.Com LLC. This program is *
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* free software; you may redistribute and/or modify it under the *
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* terms of the GNU General Public License as published by the Free *
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* Software Foundation; Version 2. This guarantees your right to use, *
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* modify, and redistribute this software under certain conditions. If *
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* you wish to embed Nmap technology into proprietary software, we may be *
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* willing to sell alternative licenses (contact sales@insecure.com). *
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* Many security scanner vendors already license Nmap technology such as *
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* our remote OS fingerprinting database and code, service/version *
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* detection system, and port scanning code. *
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* *
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* Note that the GPL places important restrictions on "derived works", yet *
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* it does not provide a detailed definition of that term. To avoid *
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* misunderstandings, 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: *
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* o Integrates source code from Nmap *
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* o Reads or includes Nmap copyrighted data files, such as *
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* nmap-os-fingerprints or nmap-service-probes. *
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* o Executes Nmap and parses the results (as opposed to typical shell or *
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* execution-menu apps, which simply display raw Nmap output and so are *
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* not derivative works.) *
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* o Integrates/includes/aggregates Nmap into a proprietary executable *
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* installer, such as those produced by InstallShield. *
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* o Links to a library or executes a program that does any of the above *
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* *
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* The term "Nmap" should be taken to also include any portions or derived *
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* works of Nmap. This list is not exclusive, but is just meant to *
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* clarify our interpretation of derived works with some common examples. *
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* These restrictions only apply when you actually redistribute Nmap. For *
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* example, nothing stops you from writing and selling a proprietary *
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* front-end to Nmap. Just distribute it by itself, and point people to *
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* http://www.insecure.org/nmap/ to download Nmap. *
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* *
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* We don't consider these to be added restrictions on top of the GPL, but *
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* just a clarification of how we interpret "derived works" as it applies *
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* to our GPL-licensed Nmap product. This is similar to the way Linus *
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* Torvalds has announced his interpretation of how "derived works" *
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* applies to Linux kernel modules. Our interpretation refers only to *
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* Nmap - we don't speak for any other GPL products. *
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* *
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* If you have any questions about the GPL licensing restrictions on using *
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* Nmap in non-GPL works, we would be happy to help. As mentioned above, *
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* we also offer alternative license to integrate Nmap into proprietary *
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* applications and appliances. These contracts have been sold to many *
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* security vendors, and generally include a perpetual license as well as *
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* providing for priority support and updates as well as helping to fund *
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* the continued development of Nmap technology. Please email *
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* sales@insecure.com for further information. *
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* *
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* As a special exception to the GPL terms, Insecure.Com LLC 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 Copying.OpenSSL file, and distribute linked *
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* combinations including the two. You must obey the GNU GPL in all *
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* respects for all of the code used other than OpenSSL. If you modify *
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* this file, you may extend this exception to your version of the file, *
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* but you are not obligated to do so. *
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* *
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* If you received these files with a written license agreement or *
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* contract stating terms other than the terms above, then that *
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* alternative license agreement takes precedence over these comments. *
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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 (none *
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* have been found so far). *
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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 fyodor@insecure.org for possible incorporation into the main *
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* distribution. By sending these changes to Fyodor or one the *
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* Insecure.Org development mailing lists, it is assumed that you are *
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* offering Fyodor and Insecure.Com LLC the unlimited, non-exclusive right *
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* to reuse, modify, and relicense the code. Nmap will always be *
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* available Open Source, but this is important because the inability to *
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* relicense code has caused devastating problems for other Free Software *
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* projects (such as KDE and NASM). We also occasionally relicense the *
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* code to third parties as discussed above. If you wish to specify *
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* special license conditions of your contributions, just say so when you *
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* 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 GNU *
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* General Public License for more details at *
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* http://www.gnu.org/copyleft/gpl.html , or in the COPYING file included *
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* with Nmap. *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef OSSCAN_H
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#define OSSCAN_H
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#include "nmap.h"
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#include "tcpip.h"
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#include "global_structures.h"
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#include "FingerPrintResults.h"
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#define OSSCAN_SUCCESS 0
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#define OSSCAN_NOMATCHES -1
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#define OSSCAN_TOOMANYMATCHES -2
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/* We won't even consider matches with a lower accuracy than this */
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#define OSSCAN_GUESS_THRESHOLD 0.85
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/********************** STRUCTURES ***********************************/
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/* moved to global_structures.h */
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/********************** PROTOTYPES ***********************************/
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int os_scan(Target *target);
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char *fp2ascii(FingerPrint *FP);
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/* Parses a single fingerprint from the memory region given. If a
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non-null fingerprint is returned, the user is in charge of freeing it
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when done. This function does not require the fingerprint to be 100%
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complete since it is used by scripts such as scripts/fingerwatch for
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which some partial fingerpritns are OK. */
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FingerPrint *parse_single_fingerprint(char *fprint_orig);
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FingerPrint **parse_fingerprint_file(char *fname);
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FingerPrint **parse_fingerprint_reference_file();
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/* Compares 2 fingerprints -- a referenceFP (can have expression
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attributes) with an observed fingerprint (no expressions). If
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verbose is nonzero, differences will be printed. The comparison
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accuracy (between 0 and 1) is returned) */
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double compare_fingerprints(FingerPrint *referenceFP, FingerPrint *observedFP,
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int verbose);
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/* Takes a fingerprint and looks for matches inside reference_FPs[].
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The results are stored in in FPR (which must point to an instantiated
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FingerPrintResults class) -- results will be reverse-sorted by
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accuracy. No results below accuracy_threshhold will be included.
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The max matches returned is the maximum that fits in a
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FingerPrintResults class. */
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void match_fingerprint(FingerPrint *FP, FingerPrintResults *FPR,
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FingerPrint **reference_FPs, double accuracy_threshold);
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/* 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 */
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void freeFingerPrint(FingerPrint *FP);
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char *mergeFPs(FingerPrint *FPs[], int numFPs, int openport, int closedport,
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const u8 *mac);
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/* This function takes an array of "numSamples" IP IDs and analyzes
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them to determine their sequenceability classification. It returns
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one of the IPID_SEQ_* classifications defined in nmap.h . If the
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function cannot determine the sequence, IPID_SEQ_UNKNOWN is returned.
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This islocalhost argument is a boolean specifying whether these
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numbers were generated by scanning localhost. NOTE: the "ipids" argument
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may be modified if localhost is set to true. */
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int ipid_sequence(int numSamples, u16 *ipids, int islocalhost);
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#endif /*OSSCAN_H*/
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