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5436c891fc
of "*.*.*.*" from working. Support for the CIDR /0 is now also available. [Kris] A sendto() or connect() to IPv4 addresses with a first octet of 0 (excluding 0.0.0.0 on some OS's) returns EINVAL. These addresses are reserved for "self-identification" and should never go over the wire (and at least on Linux a connect() to 0.0.0.0 gets redirected to 127.0.0.1). I'm talking with Fyodor on whether or not to skip *all* of these addresses.
194 lines
11 KiB
C++
194 lines
11 KiB
C++
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/***************************************************************************
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* TargetGroup.h -- The "TargetGroup" class holds a group of IP addresses, *
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* such as those from a '/16' or '10.*.*.*' specification. It also has a *
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* trivial HostGroupState class which handles a bunch of expressions that *
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* go into TargetGroup classes. *
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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) 1996-2008 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 with the clarifications and exceptions described *
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* below. This guarantees your right to use, modify, and redistribute *
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* this software under certain conditions. If you wish to embed Nmap *
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* technology into proprietary software, we sell alternative licenses *
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* (contact sales@insecure.com). Dozens of software vendors already *
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* license Nmap technology such as host discovery, port scanning, OS *
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* detection, and version detection. *
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* *
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* Note that the GPL places important restrictions on "derived works", yet *
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* it does not provide a detailed definition of that term. To avoid *
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* misunderstandings, 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: *
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* o Integrates source code from Nmap *
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* o Reads or includes Nmap copyrighted data files, such as *
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* nmap-os-db or nmap-service-probes. *
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* o Executes Nmap and parses the results (as opposed to typical shell or *
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* execution-menu apps, which simply display raw Nmap output and so are *
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* not derivative works.) *
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* o Integrates/includes/aggregates Nmap into a proprietary executable *
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* installer, such as those produced by InstallShield. *
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* o Links to a library or executes a program that does any of the above *
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* *
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* The term "Nmap" should be taken to also include any portions or derived *
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* works of Nmap. This list is not exclusive, but is just meant to *
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* clarify our interpretation of derived works with some common examples. *
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* These restrictions only apply when you actually redistribute Nmap. For *
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* example, nothing stops you from writing and selling a proprietary *
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* front-end to Nmap. Just distribute it by itself, and point people to *
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* http://nmap.org to download Nmap. *
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* *
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* We don't consider these to be added restrictions on top of the GPL, but *
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* just a clarification of how we interpret "derived works" as it applies *
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* to our GPL-licensed Nmap product. This is similar to the way Linus *
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* Torvalds has announced his interpretation of how "derived works" *
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* applies to Linux kernel modules. Our interpretation refers only to *
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* Nmap - we don't speak for any other GPL products. *
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* *
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* If you have any questions about the GPL licensing restrictions on using *
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* Nmap in non-GPL works, we would be happy to help. As mentioned above, *
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* we also 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 as well as helping to *
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* fund the continued development of Nmap technology. Please email *
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* sales@insecure.com for further information. *
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* *
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* As a 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 COPYING.OpenSSL file, and distribute linked *
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* combinations including the two. You must obey the GNU GPL in all *
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* respects for all of the code used other than OpenSSL. If you modify *
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* this file, you may extend this exception to your version of the file, *
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* but you are not obligated to do so. *
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* *
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* If you received these files with a written license agreement or *
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* contract stating terms other than the terms above, then that *
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* alternative license agreement takes precedence over these comments. *
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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 fyodor@insecure.org for possible incorporation into the main *
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* distribution. By sending these changes to Fyodor or one of the *
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* Insecure.Org development mailing lists, it is assumed that you are *
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* offering Fyodor and Insecure.Com LLC the unlimited, non-exclusive right *
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* to reuse, modify, and relicense the code. Nmap will always be *
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* available Open Source, but this is important because the inability to *
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* relicense code has caused devastating problems for other Free Software *
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* projects (such as KDE and NASM). We also occasionally relicense the *
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* code to third parties as discussed above. If you wish to specify *
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* special license conditions of your contributions, just say so when you *
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* 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 GNU *
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* General Public License v2.0 for more details at *
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* http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file *
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* included with Nmap. *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef TARGETGROUP_H
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#define TARGETGROUP_H
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#include "nmap.h"
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class TargetGroup {
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public:
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/* used by get_target_types */
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enum _targets_types { TYPE_NONE, IPV4_NETMASK, IPV4_RANGES, IPV6_ADDRESS };
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/* used as input to skip range */
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enum _octet_nums { FIRST_OCTET, SECOND_OCTET, THIRD_OCTET };
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TargetGroup();
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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 * const target_expr, int af);
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/* Reset the object without reinitializing it */
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int rewind();
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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 the last given host, so that it will be given again next
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time get_next_host is called. Obviously, you should only call
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this if you have fetched at least 1 host since parse_expr() was
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called */
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int return_last_host();
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/* return the target type */
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char get_targets_type() {return targets_type;};
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/* get the netmask */
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int get_mask() {return netmask;};
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/* is the current expression a named host */
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int get_namedhost() {return namedhost;};
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/* Skip an octet in the range array */
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int skip_range(_octet_nums octet);
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private:
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enum _targets_types targets_type;
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void Initialize();
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#if HAVE_IPV6
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struct sockaddr_in6 ip6;
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#endif
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/* These 4 are used for the '/mask' style of specifying target
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net (IPV4_NETMASK) */
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u32 netmask;
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struct in_addr startaddr;
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struct in_addr currentaddr;
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struct in_addr endaddr;
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// These three are for the '138.[1-7,16,91-95,200-].12.1' style (IPV4_RANGES)
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u8 addresses[4][256];
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unsigned int current[4];
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u8 last[4];
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/* Number of IPs left in this structure -- set to 0 if
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the fields are not valid */
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unsigned long long ipsleft;
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// is the current target expression a named host
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int namedhost;
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};
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class HostGroupState {
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public:
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HostGroupState(int lookahead, int randomize, char *target_expressions[],
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int num_expressions);
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~HostGroupState();
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Target **hostbatch;
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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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char **target_expressions; /* An array of target expression strings, passed
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to us by the client (client is also in charge
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of deleting it AFTER it is done with the
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hostgroup_state */
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int num_expressions; /* The number of valid expressions in
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target_expressions member above */
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int next_expression; /* The index of the next expression we have
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to handle */
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TargetGroup current_expression; /* For batch chunking -- targets in queue */
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};
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#endif /* TARGETGROUP_H */
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