osscan.h

Ubuntu packages of security software。 相当不错的源码

/***************************************************************************
 * 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://www.insecure.org/nmap/nmap-fingerprinting-article.html           *
 *                                                                         *
 ***********************IMPORTANT NMAP LICENSE TERMS************************
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 *                                                                         *
 ***************************************************************************/

/* $Id: osscan.h 4004 2006-09-25 09:08:56Z fyodor $ */

#ifndef OSSCAN_H
#define OSSCAN_H

#include "nmap.h"
#include "tcpip.h"
#include "global_structures.h"
#include "FingerPrintResults.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  ***********************************/
int os_scan(Target *target);
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(char *fname);
FingerPrintDB *parse_fingerprint_reference_file(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);
char *mergeFPs(FingerPrint *FPs[], int numFPs, bool isGoodFP, const struct in_addr * const addr, int distance, const u8 *mac, int openTcpPort, int closedTcpPort, int closedUdpPort, bool wrapit);

/* This function takes an array of "numSamples" IP IDs and analyzes
 them to determine their sequenceability classification.  It returns
 one of the IPID_SEQ_* classifications defined in nmap.h .  If the
 function cannot determine the sequence, IPID_SEQ_UNKNOWN is returned.
 This islocalhost argument is a boolean specifying whether these
 numbers were generated by scanning localhost.  NOTE: the "ipids" argument
 may be modified if localhost is set to true. */
int ipid_sequence(int numSamples, u16 *ipids, int islocalhost);

#endif /*OSSCAN_H*/