nmapops.h

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/***************************************************************************
 * NmapOps.h -- The NmapOps class contains global options, mostly based on *
 * user-provided command-line settings.                                    *
 *                                                                         *
 ***********************IMPORTANT NMAP LICENSE TERMS************************
 *                                                                         *
 * The Nmap Security Scanner is (C) 1996-2008 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      *
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 * detection, and version detection.                                       *
 *                                                                         *
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 * following:                                                              *
 * o Integrates source code from Nmap                                      *
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 *   not derivative works.)                                                * 
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 *                                                                         *
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 *                                                                         *
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 *                                                                         *
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 *                                                                         *
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 *                                                                         *
 * Source is provided to this software because we believe users have a     *
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 * This also allows you to audit the software for security holes (none     *
 * have been found so far).                                                *
 *                                                                         *
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 *                                                                         *
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 * General Public License for more details at                              *
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 * with Nmap.                                                              *
 *                                                                         *
 ***************************************************************************/

/* $Id: NmapOps.h 6633 2007-12-22 06:32:03Z fyodor $ */

#include "nmap.h"
#include "global_structures.h"
#include "output.h"
#include <string>

class NmapOps {
 public:
  NmapOps();
  ~NmapOps();
  void ReInit(); // Reinitialize the class to default state
  void setaf(int af) { addressfamily = af; }
  int af() { return addressfamily; }
  // no setpf() because it is based on setaf() values
  int pf();
  /* Returns 0 for success, nonzero if no source has been set or any other
     failure */
  int SourceSockAddr(struct sockaddr_storage *ss, size_t *ss_len);
  /* Note that it is OK to pass in a sockaddr_in or sockaddr_in6 casted
     to sockaddr_storage */
  void setSourceSockAddr(struct sockaddr_storage *ss, size_t ss_len);

// The time this obj. was instantiated   or last ReInit()ed.
  const struct timeval *getStartTime() { return &start_time; }
  // Number of milliseconds since getStartTime().  The current time is an
  // optional argument to avoid an extra gettimeofday() call.
  int TimeSinceStartMS(struct timeval *now=NULL); 
  struct in_addr v4source();
  const struct in_addr *v4sourceip();



  bool TCPScan(); /* Returns true if at least one chosen scan type is TCP */
  bool UDPScan(); /* Returns true if at least one chosen scan type is UDP */

  /* Returns true if at least one chosen scan type uses raw packets.
     It does not currently cover cases such as TCP SYN ping scan which
     can go either way based on whether the user is root or IPv6 is
     being used.  It will return false in those cases where a RawScan
     is not neccessarily used. */
  bool RawScan();
  void ValidateOptions(); /* Checks that the options given are
                             reasonable and consistant.  If they aren't, the
                             function may bail out of Nmap or make small
		             adjustments (quietly or with a warning to the
		             user). */
  int isr00t;
  int debugging;

#define PACKET_SEND_NOPREF 1
#define PACKET_SEND_ETH_WEAK 2
#define PACKET_SEND_ETH_STRONG 4
#define PACKET_SEND_ETH 6
#define PACKET_SEND_IP_WEAK 8
#define PACKET_SEND_IP_STRONG 16
#define PACKET_SEND_IP 24

  /* How should we send raw IP packets?  Nmap can generally use either
     ethernet or raw ip sockets.  Which is better depends on platform
     and goals.  A _STRONG preference means that Nmap should use the
     preferred method whenever it is possible (obviously it isn't
     always possible -- sending ethernet frames won't work over a PPP
     connection).  This is useful when the other type doesn't work at
     all.  A _WEAK preference means that Nmap may use the other type
     where it is substantially more efficient to do so. For example,
     Nmap will still do an ARP ping scan of a local network even when
     the pref is SEND_IP_WEAK */
  int sendpref;
  bool packetTrace() { return (debugging >= 3)? true : pTrace;  }
  bool versionTrace() { return packetTrace()? true : vTrace;  }
#ifndef NOLUA
  bool scriptTrace() { return packetTrace()? true : scripttrace; }
#endif
  // Note that packetTrace may turn on at high debug levels even if
  // setPacketTrace(false) has been called
  void setPacketTrace(bool pt) { pTrace = pt;  }
  void setVersionTrace(bool vt) { vTrace = vt;  }
  bool openOnly() { return open_only; }
  void setOpenOnly(bool oo) { open_only = oo; }
  int verbose;
  int randomize_hosts;
  int spoofsource; /* -S used */
  int fastscan;
  char device[64];
  int interactivemode;
  int ping_group_sz;