nmap/NmapOps.h

/***************************************************************************
 * 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) 1996-2004 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        *
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 * with Nmap.                                                              *
 *                                                                         *
 ***************************************************************************/

/* $Id$ */

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 extre 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;
  bool packetTrace() { return (debugging >= 3)? true : pTrace;  }
  bool versionTrace() { return packetTrace()? true : vTrace;  }
  // 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;  }
  int verbose;
  int randomize_hosts;
  int spoofsource; /* -S used */
  char device[64];
  int interactivemode;
  int ping_group_sz;
  int generate_random_ips; /* -iR option */
  FingerPrint **reference_FPs;
  u16 magic_port;
  unsigned short magic_port_set; /* Was this set by user? */
  int num_ping_synprobes;
  /* The "synprobes" are also used when doing a connect() ping */
  u16 ping_synprobes[MAX_PROBE_PORTS];
  int num_ping_ackprobes;
  u16 ping_ackprobes[MAX_PROBE_PORTS];
  int num_ping_udpprobes;
  u16 ping_udpprobes[MAX_PROBE_PORTS];
  /* Scan timing/politeness issues */
  int timing_level; // 0-5, corresponding to Paranoid, Sneaky, Polite, Normal, Aggressive, Insane
  int max_parallelism; // 0 means it has not been set
  int min_parallelism; // 0 means it has not been set

  /* These functions retrieve and set the Round Trip Time timeouts, in
   milliseconds.  The set versions do extra processing to insure sane
   values and to adjust each other to insure consistance (e.g. that
   max is always at least as high as min) */
  int maxRttTimeout() { return max_rtt_timeout; }
  int minRttTimeout() { return min_rtt_timeout; }
  int initialRttTimeout() { return initial_rtt_timeout; }
  void setMaxRttTimeout(int rtt);
  void setMinRttTimeout(int rtt);
  void setInitialRttTimeout(int rtt);

  /* Similar functions for Host group size */
  int minHostGroupSz() { return min_host_group_sz; }
  int maxHostGroupSz() { return max_host_group_sz; }
  void setMinHostGroupSz(unsigned int sz);
  void setMaxHostGroupSz(unsigned int sz);
  unsigned int maxTCPScanDelay() { return max_tcp_scan_delay; }
  unsigned int maxUDPScanDelay() { return max_udp_scan_delay; }
  void setMaxTCPScanDelay(unsigned int delayMS) { max_tcp_scan_delay = delayMS; }
  void setMaxUDPScanDelay(unsigned int delayMS) { max_udp_scan_delay = delayMS; }

  /* Sets the Name of the XML stylesheet to be printed in XML output.
     If this is never called, a default stylesheet distributed with
     Nmap is used.  If you call it with NULL as the xslname, no
     stylesheet line is printed. */
  void setXSLStyleSheet(char *xslname);
  /* Returns the full path or URL that should be printed in the XML
     output xml-stylesheet element.  Returns NULL if the whole element
     should be skipped */
  char *XSLStyleSheet() { return xsl_stylesheet; }

  int max_ips_to_scan; // Used for Random input (-iR) to specify how 
                       // many IPs to try before stopping. 0 means unlimited.
  int extra_payload_length; /* These two are for --data_length op */
  char *extra_payload;
  unsigned long host_timeout;
  /* Delay between probes, in milliseconds */
  unsigned int scan_delay;

  int scanflags; /* if not -1, this value should dictate the TCP flags
		    for the core portscaning routine (eg to change a
		    FIN scan into a PSH scan.  Sort of a hack, but can
		    be very useful sometimes. */

  struct in_addr resume_ip; /* The last IP in the log file if user 
			       requested --restore .  Otherwise 
			       restore_ip.s_addr == 0.  Also 
			       target_struct_get will eventually set it 
			       to 0. */

  struct in_addr decoys[MAX_DECOYS];
  int osscan_limit; /* Skip OS Scan if no open or no closed TCP ports */
  int osscan_guess;   /* Be more aggressive in guessing OS type */
  int numdecoys;
  int decoyturn;
  int osscan;
  int servicescan;
  int pingtype;
  int listscan;
  int pingscan;
  int allowall;
  int fragscan; /* 0 or MTU (without IPv4 header size) */
  int ackscan;
  int bouncescan;
  int connectscan;
  int finscan;
  int idlescan;
  int ipprotscan;
  int maimonscan;
  int nullscan;
  int rpcscan;
  int synscan;
  int udpscan;
  int windowscan;
  int xmasscan;
  int noresolve;
  int force; /* force nmap to continue on even when the outcome seems somewhat certain */
  int append_output; /* Append to any output files rather than overwrite */
  FILE *logfd[LOG_TYPES];
  FILE *nmap_stdout; /* Nmap standard output */
  int ttl; // Time to live
  char *datadir;
 private:
  int max_rtt_timeout;
  int min_rtt_timeout;
  int initial_rtt_timeout;
  unsigned int max_tcp_scan_delay;
  unsigned int max_udp_scan_delay;
  unsigned int min_host_group_sz;
  unsigned int max_host_group_sz;
  void Initialize();
  int addressfamily; /*  Address family:  AF_INET or AF_INET6 */  
  struct sockaddr_storage sourcesock;
  size_t sourcesocklen;
  struct timeval start_time;
  bool pTrace; // Whether packet tracing has been enabled
  bool vTrace; // Whether version tracing has been enabled
  char *xsl_stylesheet;
};