Logo Search packages:      
Sourcecode: nmap version File versions  Download package


 * TargetGroup.h -- The "TargetGroup" class holds a group of IP addresses, *
 * such as those from a '/16' or '10.*.*.*' specification.  It also has a  *
 * trivial HostGroupState class which handles a bunch of expressions that  *
 * go into TargetGroup classes.                                            *
 *                                                                         *
 ***********************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 *
 * it does not provide a detailed definition of that term.  To avoid       *
 * misunderstandings, we consider an application to constitute a           *
 * "derivative work" for the purpose of this license if it does any of the *
 * following:                                                              *
 * o Integrates source code from Nmap                                      *
 * o Reads or includes Nmap copyrighted data files, such as                *
 *   nmap-os-fingerprints or nmap-service-probes.                          *
 * o Executes Nmap and parses the results (as opposed to typical shell or  *
 *   execution-menu apps, which simply display raw Nmap output and so are  *
 *   not derivative works.)                                                * 
 * o Integrates/includes/aggregates Nmap into a proprietary executable     *
 *   installer, such as those produced by InstallShield.                   *
 * o Links to a library or executes a program that does any of the above   *
 *                                                                         *
 * The term "Nmap" should be taken to also include any portions or derived *
 * works of Nmap.  This list is not exclusive, but is just meant to        *
 * clarify our interpretation of derived works with some common examples.  *
 * These restrictions only apply when you actually redistribute Nmap.  For *
 * example, nothing stops you from writing and selling a proprietary       *
 * front-end to Nmap.  Just distribute it by itself, and point people to   *
 * http://www.insecure.org/nmap/ to download Nmap.                         *
 *                                                                         *
 * We don't consider these to be added restrictions on top of the GPL, but *
 * just a clarification of how we interpret "derived works" as it applies  *
 * to our GPL-licensed Nmap product.  This is similar to the way Linus     *
 * Torvalds has announced his interpretation of how "derived works"        *
 * applies to Linux kernel modules.  Our interpretation refers only to     *
 * Nmap - we don't speak for any other GPL products.                       *
 *                                                                         *
 * If you have any questions about the GPL licensing restrictions on using *
 * Nmap in non-GPL works, we would be happy to help.  As mentioned above,  *
 * we also offer alternative license to integrate Nmap into proprietary    *
 * applications and appliances.  These contracts have been sold to many    *
 * security vendors, and generally include a perpetual license as well as  *
 * providing for priority support and updates as well as helping to fund   *
 * the continued development of Nmap technology.  Please email             *
 * sales@insecure.com for further information.                             *
 *                                                                         *
 * As a special exception to the GPL terms, Insecure.Com LLC grants        *
 * permission to link the code of this program with any version of the     *
 * OpenSSL library which is distributed under a license identical to that  *
 * listed in the included Copying.OpenSSL file, and distribute linked      *
 * combinations including the two. You must obey the GNU GPL in all        *
 * respects for all of the code used other than OpenSSL.  If you modify    *
 * this file, you may extend this exception to your version of the file,   *
 * but you are not obligated to do so.                                     *
 *                                                                         *
 * If you received these files with a written license agreement or         *
 * contract stating terms other than the terms above, then that            *
 * alternative license agreement takes precedence over these comments.     *
 *                                                                         *
 * Source is provided to this software because we believe users have a     *
 * right to know exactly what a program is going to do before they run it. *
 * This also allows you to audit the software for security holes (none     *
 * have been found so far).                                                *
 *                                                                         *
 * Source code also allows you to port Nmap to new platforms, fix bugs,    *
 * and add new features.  You are highly encouraged to send your changes   *
 * to fyodor@insecure.org for possible incorporation into the main         *
 * distribution.  By sending these changes to Fyodor or one the            *
 * Insecure.Org development mailing lists, it is assumed that you are      *
 * offering Fyodor and Insecure.Com LLC the unlimited, non-exclusive right *
 * to reuse, modify, and relicense the code.  Nmap will always be          *
 * available Open Source, but this is important because the inability to   *
 * relicense code has caused devastating problems for other Free Software  *
 * projects (such as KDE and NASM).  We also occasionally relicense the    *
 * code to third parties as discussed above.  If you wish to specify       *
 * special license conditions of your contributions, just say so when you  *
 * send them.                                                              *
 *                                                                         *
 * This program is distributed in the hope that it will be useful, but     *
 * WITHOUT ANY WARRANTY; without even the implied warranty of              *
 * General Public License for more details at                              *
 * http://www.gnu.org/copyleft/gpl.html , or in the COPYING file included  *
 * with Nmap.                                                              *
 *                                                                         *

/* $Id: TargetGroup.h 2891 2005-10-01 23:50:27Z fyodor $ */


#include "nmap.h"

class TargetGroup {
  /* used by get_target_types */
  enum _targets_types { TYPE_NONE, IPV4_NETMASK, IPV4_RANGES, IPV6_ADDRESS };
  /* used as input to skip range */
  enum _octet_nums { FIRST_OCTET, SECOND_OCTET, THIRD_OCTET };

 /* Initializes (or reinitializes) the object with a new expression,
    such as , 10.1.0-5.1-254 , or
    fe80::202:e3ff:fe14:1102 .  The af parameter is AF_INET or
    AF_INET6 Returns 0 for success */
  int parse_expr(const char * const target_expr, int af);
  /* Reset the object without reinitializing it */
  int rewind();
  /* Grab the next host from this expression (if any).  Returns 0 and
     fills in ss if successful.  ss must point to a pre-allocated
     sockaddr_storage structure */
  int get_next_host(struct sockaddr_storage *ss, size_t *sslen);
  /* Returns the last given host, so that it will be given again next
     time get_next_host is called.  Obviously, you should only call
     this if you have fetched at least 1 host since parse_expr() was
     called */
  int return_last_host();
  /* return the target type */
  char get_targets_type() {return targets_type;};
  /* get the netmask */
  int get_mask() {return netmask;};
  /* Skip an octet in the range array */
  int skip_range(_octet_nums octet);
  enum _targets_types targets_type;
  void Initialize();

  struct in6_addr ip6;

  /* These 4 are used for the '/mask' style of specifying target 
     net (IPV4_NETMASK) */
  u32 netmask;
  struct in_addr startaddr;
  struct in_addr currentaddr;
  struct in_addr endaddr;

  // These three are for the '138.[1-7,16,91-95,200-].12.1' style (IPV4_RANGES)
  u8 addresses[4][256];
  unsigned int current[4];
  u8 last[4];  

/* Number of IPs left in this structure -- set to 0 if 
              the fields are not valid */
  unsigned long ipsleft; 


class HostGroupState {
  HostGroupState(int lookahead, int randomize, char *target_expressions[],
             int num_expressions);
  Target **hostbatch;
  int max_batch_sz; /* The size of the hostbatch[] array */
  int current_batch_sz; /* The number of VALID members of hostbatch[] */
  int next_batch_no; /* The index of the next hostbatch[] member to be given 
                  back to the user */
  int randomize; /* Whether each batch should be "shuffled" prior to the ping 
                scan (they will also be out of order when given back one
                at a time to the client program */
  char **target_expressions; /* An array of target expression strings, passed
                        to us by the client (client is also in charge
                        of deleting it AFTER it is done with the 
                        hostgroup_state */
  int num_expressions;       /* The number of valid expressions in 
                        target_expressions member above */
  int next_expression;   /* The index of the next expression we have
                      to handle */
  TargetGroup current_expression; /* For batch chunking -- targets in queue */

#endif /* TARGETGROUP_H */

Generated by  Doxygen 1.6.0   Back to index