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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) 1996-2015 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 ("GPL"), BUT ONLY WITH ALL OF THE CLARIFICATIONS *
* AND EXCEPTIONS DESCRIBED HEREIN. 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@nmap.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 "derivative 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 with any software or content covered by this license *
* ("Covered Software"): *
* *
* o Integrates source code from Covered Software. *
* *
* o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
* or nmap-service-probes. *
* *
* o Is designed specifically to execute Covered Software and parse the *
* results (as opposed to typical shell or execution-menu apps, which will *
* execute anything you tell them to). *
* *
* o Includes Covered Software in a proprietary executable installer. The *
* installers produced by InstallShield are an example of this. Including *
* Nmap with other software in compressed or archival form does not *
* trigger this provision, provided appropriate open source decompression *
* or de-archiving software is widely available for no charge. For the *
* purposes of this license, an installer is considered to include Covered *
* Software even if it actually retrieves a copy of Covered Software from *
* another source during runtime (such as by downloading it from the *
* Internet). *
* *
* o Links (statically or dynamically) to a library which does any of the *
* above. *
* *
* o Executes a helper program, module, or script to do any of the above. *
* *
* This list is not exclusive, but is meant to clarify our interpretation *
* of derived works with some common examples. Other people may interpret *
* the plain GPL differently, so we consider this a special exception to *
* the GPL that we apply to Covered Software. Works which meet any of *
* these conditions must conform to all of the terms of this license, *
* particularly including the GPL Section 3 requirements of providing *
* source code and allowing free redistribution of the work as a whole. *
* *
* As another 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. *
* *
* Any redistribution of Covered Software, including any derived works, *
* must obey and carry forward all of the terms of this license, including *
* obeying all GPL rules and restrictions. For example, source code of *
* the whole work must be provided and free redistribution must be *
* allowed. All GPL references to "this License", are to be treated as *
* including the terms and conditions of this license text as well. *
* *
* Because this license imposes special exceptions to the GPL, Covered *
* Work may not be combined (even as part of a larger work) with plain GPL *
* software. The terms, conditions, and exceptions of this license must *
* be included as well. This license is incompatible with some other open *
* source licenses as well. In some cases we can relicense portions of *
* Nmap or grant special permissions to use it in other open source *
* software. Please contact fyodor@nmap.org with any such requests. *
* Similarly, we don't incorporate incompatible open source software into *
* Covered Software without special permission from the copyright holders. *
* *
* If you have any questions about the licensing restrictions on using *
* Nmap in other works, are 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@nmap.com for further *
* information. *
* *
* If you have received a written license agreement or contract for *
* Covered Software stating terms other than these, you may choose to use *
* and redistribute Covered Software under those terms instead of these. *
* *
* 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. *
* *
* 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>
/* 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, size_t *sslen) = 0;
virtual void apply_netmask(int bits) = 0;
virtual std::string str() const = 0;
};
class NetBlockIPv4Ranges : public NetBlock {
public:
octet_bitvector octets[4];
NetBlockIPv4Ranges();
bool next(struct sockaddr_storage *ss, size_t *sslen);
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, size_t *sslen);
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, size_t *sslen);
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 specifications.
* (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 */