/*************************************************************************** * targets.h -- Functions relating to "ping scanning" as well as * * determining the exact IPs to hit based on CIDR and other input formats. * * * ***********************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 TARGETS_H #define TARGETS_H #ifdef HAVE_CONFIG_H #include "nmap_config.h" #else #ifdef WIN32 #include "nmap_winconfig.h" #endif /* WIN32 */ #endif /* HAVE_CONFIG_H */ /* This contains pretty much everything we need ... */ #if HAVE_SYS_TIME_H #include #endif #if HAVE_UNISTD_H #include #endif #ifdef HAVE_SYS_PARAM_H #include /* Defines MAXHOSTNAMELEN on BSD*/ #endif #include "nmap.h" #include "global_structures.h" #include "TargetGroup.h" class TargetGroup { public: NetBlock *netblock; TargetGroup() { this->netblock = NULL; } ~TargetGroup() { if (this->netblock != NULL) delete this->netblock; } /* Initializes (or reinitializes) the object with a new expression, such as 192.168.0.0/16 , 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 *target_expr, int af); /* 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 true iff the given address is the one that was resolved to create this target group; i.e., not one of the addresses derived from it with a netmask. */ bool is_resolved_address(const struct sockaddr_storage *ss) const; /* Return a string of the name or address that was resolved for this group. */ const char *get_resolved_name(void) const; /* Return the list of addresses that the name for this group resolved to, if it came from a name resolution. */ const std::list &get_resolved_addrs(void) const; /* is the current expression a named host */ int get_namedhost() const; }; class HostGroupState { public: /* The maximum number of entries we want to allow storing in defer_buffer. */ static const unsigned int DEFER_LIMIT = 64; HostGroupState(int lookahead, int randomize, int argc, const char *argv[]); ~HostGroupState(); Target **hostbatch; /* The defer_buffer is a place to store targets that have previously been returned but that can't be used right now. They wait in defer_buffer until HostGroupState::undefer is called, at which point they all move to the end of the undeferred list. HostGroupState::next_target always pulls from the undeferred list before returning anything new. */ std::list defer_buffer; std::list undeferred; int argc; const char **argv; 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 */ TargetGroup current_group; /* For batch chunking -- targets in queue */ /* Returns true iff the defer buffer is not yet full. */ bool defer(Target *t); void undefer(); const char *next_expression(); Target *next_target(); }; /* Ports is the list of ports the user asked to be scanned (0 terminated), you can just pass NULL (it is only a stupid optimization that needs it) */ Target *nexthost(HostGroupState *hs,const addrset *exclude_group, struct scan_lists *ports, int pingtype); int load_exclude_file(addrset *exclude_group, FILE *fp); int load_exclude_string(addrset *exclude_group, const char *s); /* a debugging routine to dump an exclude list to stdout. */ int dumpExclude(addrset *exclude_group); /* Returns the last host obtained by nexthost. It will be given again the next time you call nexthost(). */ void returnhost(HostGroupState *hs); #endif /* TARGETS_H */