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e3d1c178e3
proposal. This only affects Nmap's root directory. We might also need to modify the code which autogenerates Nmap's source code files such as IPv6 fingerprinting code.
239 lines
13 KiB
C++
239 lines
13 KiB
C++
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/***************************************************************************
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* targets.h -- Functions relating to "ping scanning" as well as *
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* determining the exact IPs to hit based on CIDR and other input formats. *
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* *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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* *
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* The Nmap Security Scanner is (C) 1996-2013 Insecure.Com LLC. Nmap is *
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* also a registered trademark of Insecure.Com LLC. This program is free *
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* software; you may redistribute and/or modify it under the terms of the *
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* GNU General Public License as published by the Free Software *
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* Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE CLARIFICATIONS *
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* AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your right to use, *
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* modify, and redistribute this software under certain conditions. If *
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* you wish to embed Nmap technology into proprietary software, we sell *
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* alternative licenses (contact sales@nmap.com). Dozens of software *
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* vendors already license Nmap technology such as host discovery, port *
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* scanning, OS detection, version detection, and the Nmap Scripting *
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* Engine. *
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* *
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* Note that the GPL places important restrictions on "derivative works", *
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* yet it does not provide a detailed definition of that term. To avoid *
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* misunderstandings, we interpret that term as broadly as copyright law *
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* allows. For example, we consider an application to constitute a *
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* derivative work for the purpose of this license if it does any of the *
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* following with any software or content covered by this license *
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* ("Covered Software"): *
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* *
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* o Integrates source code from Covered Software. *
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* *
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* o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
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* or nmap-service-probes. *
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* *
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* o Is designed specifically to execute Covered Software and parse the *
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* results (as opposed to typical shell or execution-menu apps, which will *
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* execute anything you tell them to). *
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* *
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* o Includes Covered Software in a proprietary executable installer. The *
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* installers produced by InstallShield are an example of this. Including *
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* Nmap with other software in compressed or archival form does not *
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* trigger this provision, provided appropriate open source decompression *
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* or de-archiving software is widely available for no charge. For the *
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* purposes of this license, an installer is considered to include Covered *
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* Software even if it actually retrieves a copy of Covered Software from *
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* another source during runtime (such as by downloading it from the *
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* Internet). *
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* *
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* o Links (statically or dynamically) to a library which does any of the *
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* above. *
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* *
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* o Executes a helper program, module, or script to do any of the above. *
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* *
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* This list is not exclusive, but is meant to clarify our interpretation *
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* of derived works with some common examples. Other people may interpret *
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* the plain GPL differently, so we consider this a special exception to *
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* the GPL that we apply to Covered Software. Works which meet any of *
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* these conditions must conform to all of the terms of this license, *
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* particularly including the GPL Section 3 requirements of providing *
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* source code and allowing free redistribution of the work as a whole. *
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* *
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* As another special exception to the GPL terms, Insecure.Com LLC grants *
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* permission to link the code of this program with any version of the *
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* OpenSSL library which is distributed under a license identical to that *
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* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
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* linked combinations including the two. *
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* *
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* Any redistribution of Covered Software, including any derived works, *
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* must obey and carry forward all of the terms of this license, including *
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* obeying all GPL rules and restrictions. For example, source code of *
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* the whole work must be provided and free redistribution must be *
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* allowed. All GPL references to "this License", are to be treated as *
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* including the terms and conditions of this license text as well. *
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* *
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* Because this license imposes special exceptions to the GPL, Covered *
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* Work may not be combined (even as part of a larger work) with plain GPL *
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* software. The terms, conditions, and exceptions of this license must *
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* be included as well. This license is incompatible with some other open *
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* source licenses as well. In some cases we can relicense portions of *
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* Nmap or grant special permissions to use it in other open source *
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* software. Please contact fyodor@nmap.org with any such requests. *
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* Similarly, we don't incorporate incompatible open source software into *
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* Covered Software without special permission from the copyright holders. *
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* *
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* If you have any questions about the licensing restrictions on using *
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* Nmap in other works, are happy to help. As mentioned above, we also *
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* offer alternative license to integrate Nmap into proprietary *
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* applications and appliances. These contracts have been sold to dozens *
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* of software vendors, and generally include a perpetual license as well *
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* as providing for priority support and updates. They also fund the *
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* continued development of Nmap. Please email sales@nmap.com for further *
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* information. *
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* *
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* If you have received a written license agreement or contract for *
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* Covered Software stating terms other than these, you may choose to use *
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* and redistribute Covered Software under those terms instead of these. *
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* *
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* Source is provided to this software because we believe users have a *
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* right to know exactly what a program is going to do before they run it. *
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* This also allows you to audit the software for security holes (none *
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* have been found so far). *
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* *
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* Source code also allows you to port Nmap to new platforms, fix bugs, *
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* and add new features. You are highly encouraged to send your changes *
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* to the dev@nmap.org mailing list for possible incorporation into the *
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* main distribution. By sending these changes to Fyodor or one of the *
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* Insecure.Org development mailing lists, or checking them into the Nmap *
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* source code repository, it is understood (unless you specify otherwise) *
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* that you are offering the Nmap Project (Insecure.Com LLC) the *
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* unlimited, non-exclusive right to reuse, modify, and relicense the *
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* code. Nmap will always be available Open Source, but this is important *
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* because the inability to relicense code has caused devastating problems *
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* for other Free Software projects (such as KDE and NASM). We also *
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* occasionally relicense the code to third parties as discussed above. *
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* If you wish to specify special license conditions of your *
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* contributions, just say so when you send them. *
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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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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap *
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* license file for more details (it's in a COPYING file included with *
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* Nmap, and also available from https://svn.nmap.org/nmap/COPYING *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef TARGETS_H
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#define TARGETS_H
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#ifdef HAVE_CONFIG_H
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#include "nmap_config.h"
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#else
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#ifdef WIN32
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#include "nmap_winconfig.h"
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#endif /* WIN32 */
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#endif /* HAVE_CONFIG_H */
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/* This contains pretty much everything we need ... */
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#if HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h> /* Defines MAXHOSTNAMELEN on BSD*/
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#endif
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#include "nmap.h"
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#include "global_structures.h"
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#include "TargetGroup.h"
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class TargetGroup {
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public:
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NetBlock *netblock;
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TargetGroup() {
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this->netblock = NULL;
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}
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~TargetGroup() {
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if (this->netblock != NULL)
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delete this->netblock;
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}
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/* Initializes (or reinitializes) the object with a new expression,
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such as 192.168.0.0/16 , 10.1.0-5.1-254 , or
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fe80::202:e3ff:fe14:1102 . The af parameter is AF_INET or
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AF_INET6 Returns 0 for success */
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int parse_expr(const char *target_expr, int af);
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/* Grab the next host from this expression (if any). Returns 0 and
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fills in ss if successful. ss must point to a pre-allocated
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sockaddr_storage structure */
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int get_next_host(struct sockaddr_storage *ss, size_t *sslen);
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/* Returns true iff the given address is the one that was resolved to create
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this target group; i.e., not one of the addresses derived from it with a
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netmask. */
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bool is_resolved_address(const struct sockaddr_storage *ss) const;
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/* Return a string of the name or address that was resolved for this group. */
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const char *get_resolved_name(void) const;
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/* Return the list of addresses that the name for this group resolved to, if
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it came from a name resolution. */
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const std::list<struct sockaddr_storage> &get_resolved_addrs(void) const;
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/* is the current expression a named host */
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int get_namedhost() const;
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};
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class HostGroupState {
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public:
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/* The maximum number of entries we want to allow storing in defer_buffer. */
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static const unsigned int DEFER_LIMIT = 64;
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HostGroupState(int lookahead, int randomize, int argc, const char *argv[]);
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~HostGroupState();
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Target **hostbatch;
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/* The defer_buffer is a place to store targets that have previously been
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returned but that can't be used right now. They wait in defer_buffer until
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HostGroupState::undefer is called, at which point they all move to the end
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of the undeferred list. HostGroupState::next_target always pulls from the
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undeferred list before returning anything new. */
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std::list<Target *> defer_buffer;
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std::list<Target *> undeferred;
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int argc;
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const char **argv;
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int max_batch_sz; /* The size of the hostbatch[] array */
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int current_batch_sz; /* The number of VALID members of hostbatch[] */
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int next_batch_no; /* The index of the next hostbatch[] member to be given
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back to the user */
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int randomize; /* Whether each batch should be "shuffled" prior to the ping
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scan (they will also be out of order when given back one
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at a time to the client program */
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TargetGroup current_group; /* For batch chunking -- targets in queue */
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/* Returns true iff the defer buffer is not yet full. */
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bool defer(Target *t);
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void undefer();
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const char *next_expression();
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Target *next_target();
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};
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/* Ports is the list of ports the user asked to be scanned (0 terminated),
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you can just pass NULL (it is only a stupid optimization that needs it) */
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Target *nexthost(HostGroupState *hs,const addrset *exclude_group,
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struct scan_lists *ports, int pingtype);
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int load_exclude_file(addrset *exclude_group, FILE *fp);
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int load_exclude_string(addrset *exclude_group, const char *s);
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/* a debugging routine to dump an exclude list to stdout. */
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int dumpExclude(addrset *exclude_group);
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/* Returns the last host obtained by nexthost. It will be given again the next
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time you call nexthost(). */
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void returnhost(HostGroupState *hs);
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#endif /* TARGETS_H */
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