
/***************************************************************************
 * targets.h -- Functions relating to "ping scanning" as well as           *
 * determining the exact IPs to hit based on CIDR and other input formats. * 
 *                                                                         *
 ***********************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.                               *
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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                              *
 * http://www.gnu.org/copyleft/gpl.html , or in the COPYING file included  *
 * with Nmap.                                                              *
 *                                                                         *
 ***************************************************************************/

/* $Id: targets.h 2810 2005-08-09 04:20:41Z fyodor $ */

#ifndef TARGETS_H
#define TARGETS_H

#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#ifdef WIN32
#include "nmap_winconfig.h"
#endif /* WIN32 */
#endif /* HAVE_CONFIG_H */

/* This contains pretty much everythign we need ... */
#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif

#if HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef HAVE_SYS_PARAM_H   
#include <sys/param.h> /* Defines MAXHOSTNAMELEN on BSD*/
#endif

#include "nmap.h"
#include "global_structures.h"

class HostGroupState;

/**************************STRUCTURES******************************/
struct pingtune {
  int up_this_block;
  int down_this_block;
  int block_tries;
  int block_unaccounted;
  int max_tries;
  int num_responses;
  int dropthistry;
  double group_size;
  int min_group_size; /* The group size must never go below this value */
  int group_start;
  int group_end;
  u16 seq_offset; // For distinguishing between received packets from this 
                  // execution vs. concurrent nmaps
};

struct tcpqueryinfo {
  int *sockets[MAX_PROBE_PORTS];
  int maxsd;
  fd_set fds_r;
  fd_set fds_w;
  fd_set fds_x;
  int sockets_out;
};

struct pingtech {
  unsigned int icmpscan: 1,
    rawicmpscan: 1,
    connecttcpscan: 1,
    rawtcpscan: 1,
    rawudpscan: 1;
};


int get_ping_results(int sd, pcap_t *pd, Target *hostbatch[], 
		     int pingtype, struct timeval *time,  struct pingtune *pt,
		     struct timeout_info *to, int id, struct pingtech *ptech, 
		     struct scan_lists *ports);
int sendpingqueries(int sd, int rawsd, eth_t *ethsd, Target *target,  
		  u16 seq, unsigned short id, struct scanstats *ss, 
		  struct timeval *time, int pingtype, struct pingtech ptech);
int sendpingquery(int sd, int rawsd, eth_t *ethsd, Target *target,  
		  u16 seq, unsigned short id, struct scanstats *ss, 
		  struct timeval *time, int pingtype, struct pingtech ptech);
int sendrawtcpudppingqueries(int rawsd, eth_t *ethsd, Target *target, int pingtype,
			  u16 seq, struct timeval *time, struct pingtune *pt);
int sendrawtcppingquery(int rawsd, struct eth_nfo *eth, Target *target, int pingtype, u16 probe_port,
			u16 seq, struct timeval *time, struct pingtune *pt);
int sendrawudppingquery(int rawsd, struct eth_nfo *eth, Target *target, u16 probe_port,
			u16 seq, struct timeval *time, struct pingtune *pt);
int sendconnecttcpqueries(Target *hostbatch[], struct tcpqueryinfo *tqi, Target *target,
			  u16 seq, struct timeval *time, struct pingtune *pt, struct timeout_info *to, int max_sockets);
int sendconnecttcpquery(Target *hostbatch[], struct tcpqueryinfo *tqi, Target *target, int probe_port_num,
			u16 seq, struct timeval *time, struct pingtune *pt, struct timeout_info *to, int max_sockets);
int get_connecttcpscan_results(struct tcpqueryinfo *tqi, 
			       Target *hostbatch[], 
			       struct timeval *time, struct pingtune *pt, 
			       struct timeout_info *to);
char *readhoststate(int state);
void massping(Target *hostbatch[], int numhosts, 
		struct scan_lists *ports, int pingtype);
void hoststructfry(Target *hostbatch[], int nelem);
/* Ports is the list of ports the user asked to be scanned (0 terminated),
   you can just pass NULL (it is only a stupid optimization that needs it) */
Target *nexthost(HostGroupState *hs, TargetGroup *exclude_group, 
		 struct scan_lists *ports, int *pingtype);
/* loads an exclude file into a excluded target list */
TargetGroup* load_exclude(FILE *fExclude, char *szExclude);
/* is the host we're passed in one that
 * should be excluded?
 */
int hostInExclude(struct sockaddr *checksock, size_t checksocklen, 
		  TargetGroup *exclude_group);
/* a debugging routine to dump an exclude list to stdout. */
int dumpExclude(TargetGroup*exclude_group);
/* Returns the last host obtained by nexthost.  It will be given again the next
   time you call nexthost(). */
void returnhost(HostGroupState *hs);
#endif /* TARGETS_H */










