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scan_engine.h

/***************************************************************************
 * scanengine.h -- Includes much of the "engine" functions for scanning,   *
 * such as pos_scan and super_scan.  It also includes dependant functions  *
 * such as those for collectiong SYN/connect scan responses.               *
 *                                                                         *
 ***********************IMPORTANT NMAP LICENSE TERMS************************
 *                                                                         *
 * The Nmap Security Scanner is (C) 1996-2004 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.  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 may be  *
 * willing to sell alternative licenses (contact sales@insecure.com).      *
 * Many security scanner vendors already license Nmap technology such as  *
 * our remote OS fingerprinting database and code, service/version         *
 * detection system, and port scanning code.                               *
 *                                                                         *
 * Note that the GPL places important restrictions on "derived works", yet *
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 * following:                                                              *
 * o Integrates source code from Nmap                                      *
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 *   not derivative works.)                                                * 
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 *                                                                         *
 * If you have any questions about the GPL licensing restrictions on using *
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 * the continued development of Nmap technology.  Please email             *
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 * As a special exception to the GPL terms, Insecure.Com LLC grants        *
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 * OpenSSL library which is distributed under a license identical to that  *
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 *                                                                         *
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 *                                                                         *
 * Source is provided to this software because we believe users have a     *
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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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 * General Public License for more details at                              *
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 * with Nmap.                                                              *
 *                                                                         *
 ***************************************************************************/

/* $Id: scan_engine.h 2762 2005-07-22 10:08:53Z fyodor $ */

#ifndef SCAN_ENGINE_H
#define SCAN_ENGINE_H

#include "portlist.h"
#include "tcpip.h"
#include "global_structures.h"

/* 3rd generation Nmap scanning function.  Handles most Nmap port scan types */
void ultra_scan(std::vector<Target *> &Targets, struct scan_lists *ports, 
            stype scantype);

/* Handles the "positive-response" scans (where we get a response
   telling us that the port is open based on the probe.  This includes
   SYN Scan, Connect Scan, RPC scan, Window Scan, and ACK scan */
void pos_scan(Target *target, u16 *portarray, int numports, stype scantype);

/* FTP bounce attack scan.  This function is rather lame and should be
   rewritten.  But I don't think it is used much anyway.  If I'm going to
   allow FTP bounce scan, I should really allow SOCKS proxy scan.  */
void bounce_scan(Target *target, u16 *portarray, int numports,
             struct ftpinfo *ftp);

/* Handles the scan types where no positive-acknowledgement of open
   port is received (those scans are in pos_scan).  Super_scan
   includes scans such as FIN/XMAS/NULL/Maimon/UDP and IP Proto scans */
void super_scan(Target *target, u16 *portarray, int numports,
            stype scantype);

/* Determines an ideal number of hosts to be scanned (port scan, os
   scan, version detection, etc.) in parallel after the ping scan is
   completed.  This is a balance between efficiency (more hosts in
   parallel often reduces scan time per host) and results latency (you
   need to wait for all hosts to finish before Nmap can spit out the
   results).  Memory consumption usually also increases with the
   number of hosts scanned in parallel, though rarely to significant
   levels. */
int determineScanGroupSize(int hosts_scanned_so_far, 
                     struct scan_lists *ports);

#endif /* SCAN_ENGINE_H */

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