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TargetGroup.h
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TargetGroup.h
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/***************************************************************************
* 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) 1996-2012 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 *
* (contact sales@insecure.com). Dozens of software vendors already *
* license Nmap technology such as host discovery, port scanning, OS *
* detection, version detection, and the Nmap Scripting Engine. *
* *
* 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 interpret that term as broadly as copyright law *
* allows. For example, 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-db 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, as well as other software we distribute under this *
* license such as Zenmap, Ncat, and Nping. This list is not exclusive, *
* but is meant to clarify our interpretation of derived works with some *
* common examples. Our interpretation applies only to Nmap--we don't *
* speak for other people's GPL works. *
* *
* 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 dozens *
* of software vendors, and generally include a perpetual license as well *
* as providing for priority support and updates. They also fund the *
* continued development of Nmap. 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 docs/licenses/OpenSSL.txt 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 the dev@nmap.org mailing list for possible incorporation into the *
* main distribution. By sending these changes to Fyodor or one of the *
* Insecure.Org development mailing lists, or checking them into the Nmap *
* source code repository, it is understood (unless you specify otherwise) *
* that you are offering the Nmap Project (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 *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap *
* license file for more details (it's in a COPYING file included with *
* Nmap, and also available from https://svn.nmap.org/nmap/COPYING *
* *
***************************************************************************/
/* $Id$ */
#ifndef TARGETGROUP_H
#define TARGETGROUP_H
#include <limits.h>
#include <list>
#include <queue>
#include <set>
#include <string>
#include "nmap.h"
/* We use bit vectors to represent what values are allowed in an IPv4 octet.
Each vector is built up of an array of bitvector_t (any convenient integer
type). */
typedef unsigned long bitvector_t;
/* A 256-element bit vector, representing legal values for one octet. */
typedef bitvector_t octet_bitvector[(256 - 1) / (sizeof(unsigned long) * CHAR_BIT) + 1];
class NetBlock {
public:
virtual ~NetBlock() {}
std::string hostname;
std::list<struct sockaddr_storage> resolvedaddrs;
/* Parses an expression such as 192.168.0.0/16, 10.1.0-5.1-254, or
fe80::202:e3ff:fe14:1102/112 and returns a newly allocated NetBlock. The af
parameter is AF_INET or AF_INET6. Returns NULL in case of error. */
static NetBlock *parse_expr(const char *target_expr, int af);
bool is_resolved_address(const struct sockaddr_storage *ss) const;
virtual bool next(struct sockaddr_storage *ss) = 0;
virtual void apply_netmask(int bits) = 0;
virtual std::string str() const = 0;
};
class NetBlockIPv4Ranges : public NetBlock {
public:
octet_bitvector octets[4];
bool next(struct sockaddr_storage *ss);
void apply_netmask(int bits);
std::string str() const;
private:
unsigned int counter[4];
};
class NetBlockIPv6Netmask : public NetBlock {
public:
void set_addr(const struct sockaddr_in6 *addr);
bool next(struct sockaddr_storage *ss);
void apply_netmask(int bits);
std::string str() const;
private:
bool exhausted;
struct sockaddr_in6 addr;
struct in6_addr start;
struct in6_addr cur;
struct in6_addr end;
};
class NetBlockHostname : public NetBlock {
public:
NetBlockHostname(const char *hostname, int af);
int af;
int bits;
NetBlock *resolve() const;
bool next(struct sockaddr_storage *ss);
void apply_netmask(int bits);
std::string str() const;
};
/* Adding new targets is for NSE scripts */
class NewTargets {
public:
NewTargets();
/* return a previous inserted target */
static std::string read (void);
/* clear the scanned_targets_cache */
static void clear (void);
/* get the number of all new added targets */
static unsigned long get_number (void);
/* get the number that have been scanned */
static unsigned long get_scanned (void);
/* get the number of queued targets left to scan */
static unsigned long get_queued (void);
/* get the new_targets object */
static NewTargets *get (void);
/* insert targets to the new_targets_queue */
static unsigned long insert (const char *target);
private:
/* unsigned long mex_new_targets; */
/* A queue to push new targets that were discovered by NSE scripts.
* Nmap will pop future targets from this queue. */
std::queue<std::string> queue;
/* A cache to save scanned targets specifiactions.
* (These are targets that were pushed to Nmap scan queue) */
std::set<std::string> history;
void Initialize();
/* Save new targets onto the queue */
unsigned long push (const char *target);
protected:
static NewTargets *new_targets;
};
#endif /* TARGETGROUP_H */