mirror of
https://github.com/nmap/nmap.git
synced 2025-12-14 11:49:01 +00:00
ed2ba4e168
If you have trouble updating after this revision you need to follow these instructions. You have probably just seen an error like this: svn: URL 'svn://svn.insecure.org/nping' of existing directory 'nping' does not match expected URL 'svn://svn.insecure.org/nmap/nping' This is caused by the replacement of SVN externals. Here's what you need to do. First, save any local changes you might have in the nping, nsock, nbase, ncat, and zenmap directories. (For example by running "cd nping; svn diff > ../nping.diff".) If you don't have any local changes you can skip this step. Then run these commands: rm -rf nping/ nsock/ nbase/ ncat/ zenmap/ svn update svn cleanup If all else fails, you can just delete your whole working directory and check out anew: svn co --username guest --password "" svn://svn.insecure.org/nmap There may be further discussion in the mailing list thread at http://seclists.org/nmap-dev/2011/q4/303.
399 lines
16 KiB
C++
399 lines
16 KiB
C++
|
|
/***************************************************************************
|
|
* NpingTargets.cc -- Class that handles target spec parsing and allows to *
|
|
* obtain the different targets that need to be ping-ed. *
|
|
* *
|
|
***********************IMPORTANT NMAP LICENSE TERMS************************
|
|
* *
|
|
* The Nmap Security Scanner is (C) 1996-2011 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, and version detection. *
|
|
* *
|
|
* 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 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. 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 as well as helping to *
|
|
* fund the continued development of Nmap technology. 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 nmap-dev@insecure.org for possible incorporation into the main *
|
|
* distribution. By sending these changes to Fyodor or one of the *
|
|
* Insecure.Org development mailing lists, it is assumed 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 GNU *
|
|
* General Public License v2.0 for more details at *
|
|
* http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file *
|
|
* included with Nmap. *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
#include "nping.h"
|
|
#include "NpingOps.h"
|
|
#include "global_structures.h"
|
|
#include "output.h"
|
|
#include "nbase.h"
|
|
#include "utils.h"
|
|
#include "NpingTargets.h"
|
|
#include "common.h"
|
|
#include "common_modified.h"
|
|
|
|
extern NpingOps o;
|
|
|
|
NpingTargets::NpingTargets(){
|
|
memset(specs, 0, 1024*(sizeof(char *)) );
|
|
memset(skipspec, 0, 1024*(sizeof(bool)) );
|
|
speccount=0;
|
|
current_spec=-1;
|
|
finished=false;
|
|
targets_fetched=0;
|
|
current_target=0;
|
|
ready=false;
|
|
} /* End of NpingTargets constructor */
|
|
|
|
|
|
NpingTargets::~NpingTargets(){
|
|
} /* End of NpingTargets destructor */
|
|
|
|
|
|
/** Adds a target specification to an internal array of specs */
|
|
int NpingTargets::addSpec(char *spec){
|
|
if(spec==NULL)
|
|
return OP_FAILURE;
|
|
if( this->speccount >= 1024 )
|
|
return OP_FAILURE;
|
|
specs[ this->speccount ] = spec;
|
|
this->speccount++;
|
|
return OP_SUCCESS;
|
|
} /* End of NpingTargets */
|
|
|
|
|
|
/** Returns next target */
|
|
int NpingTargets::getNextTargetAddressAndName(struct sockaddr_storage *t, size_t *tlen, char *hname, size_t hlen){
|
|
struct sockaddr_storage next;
|
|
memset(&next, 0, sizeof(struct sockaddr_storage));
|
|
size_t nextlen=0;
|
|
int r=0;
|
|
int family= (o.getIPVersion()==IP_VERSION_6) ? AF_INET6 : AF_INET;
|
|
|
|
if( t==NULL || tlen==NULL )
|
|
outFatal(QT_3,"getNextTarget(): NULL values supplied.");
|
|
|
|
/* Return failure if there are no specs or we noticed that we were finished in
|
|
* a previous call. */
|
|
if ( this->speccount <= 0 || finished==true )
|
|
return OP_FAILURE;
|
|
|
|
/* If this is the first time we call to this method */
|
|
if (this->current_spec == -1 ){
|
|
|
|
current_spec=0;
|
|
if ( !skipspec[ current_spec ] ){
|
|
if ( current_group.parse_expr( specs[ current_spec ], family ) != 0 ){
|
|
skipspec[ current_spec ]=true; /* Make sure we skip it next time */
|
|
return OP_FAILURE;
|
|
|
|
}
|
|
}
|
|
else{ /* We are skipping current target, return the next one */
|
|
return this->getNextTargetAddressAndName(t, tlen, hname, hlen);
|
|
}
|
|
}
|
|
|
|
r=current_group.get_next_host(&next, &nextlen);
|
|
|
|
if ( r!=0 ){ /* We exhausted current group */
|
|
/* Is there any other group? */
|
|
if (++current_spec == speccount){ /* No more specs to parse */
|
|
finished=true;
|
|
return OP_FAILURE;
|
|
}
|
|
/* Ok, there are more groups, so let's go with the next spec */
|
|
if ( !skipspec[ current_spec ] ){
|
|
if ( current_group.parse_expr( specs[ current_spec ], family ) != 0 ){
|
|
skipspec[ current_spec ]=true;
|
|
return this->getNextTargetAddressAndName(t, tlen, hname, hlen);
|
|
|
|
}
|
|
}
|
|
else{ /* We are skipping current target, return the next one */
|
|
return this->getNextTargetAddressAndName(t, tlen, hname, hlen);
|
|
}
|
|
|
|
r=current_group.get_next_host(&next, &nextlen);
|
|
|
|
if (r != 0)
|
|
outFatal(QT_3,"BUG: TargetGroups are supposed to contain at least one IP! ");
|
|
}
|
|
memcpy( t, &next, sizeof( struct sockaddr_storage ) );
|
|
/* If current spec is a named host (not a range), store name in supplied buff */
|
|
if(current_group.get_namedhost()){
|
|
if( hname!=NULL && hlen>0 )
|
|
strncpy(hname, specs[ current_spec ], hlen);
|
|
}else{ /* If current spec is not a named host, insert NULL in the first position */
|
|
if( hname!=NULL && hlen>0 )
|
|
hname[0]='\0';
|
|
}
|
|
*tlen=nextlen;
|
|
targets_fetched++;
|
|
return OP_SUCCESS;
|
|
} /* End of getNextTarget() */
|
|
|
|
|
|
int NpingTargets::getNextIPv4Address(u32 *addr){
|
|
struct sockaddr_storage t;
|
|
size_t tlen;
|
|
char buff[257];
|
|
memset(buff, 0, 257);
|
|
if( addr == NULL )
|
|
outFatal(QT_3, "getNextIPv4Address(): NULL value supplied. ");
|
|
if ( this->getNextTargetAddressAndName(&t, &tlen, buff, 256) != OP_SUCCESS )
|
|
return OP_FAILURE;
|
|
struct sockaddr_in *p=( struct sockaddr_in *)&t;
|
|
if(p->sin_family!=AF_INET)
|
|
outFatal(QT_3, "getNextIPv4Address(): Trying to obtain an IPv4 address from an IPv6 target.");
|
|
*addr = p->sin_addr.s_addr;
|
|
return OP_SUCCESS;
|
|
} /* End of getNextIPv4Address() */
|
|
|
|
|
|
int NpingTargets::rewindSpecs(){
|
|
current_spec=-1;
|
|
finished=false;
|
|
targets_fetched=0;
|
|
return OP_SUCCESS;
|
|
} /* End of rewind() */
|
|
|
|
|
|
unsigned long int NpingTargets::getTargetsFetched(){
|
|
return this->Targets.size();
|
|
} /* getTargetsFetched() */
|
|
|
|
|
|
int NpingTargets::getTargetSpecCount(){
|
|
return this->speccount;
|
|
} /* End of getTargetSpecCount() */
|
|
|
|
|
|
/** This method should be called when all the target specs have been entered
|
|
* using addSpec(). What it does is to create a NpingTarget objects for
|
|
* each IP address extracted from the specs. Objects are stored in an internal
|
|
* vector. */
|
|
int NpingTargets::processSpecs(){
|
|
char buff[MAX_NPING_HOSTNAME_LEN+1];
|
|
struct sockaddr_storage ss;
|
|
size_t slen=0;
|
|
bool result=false;
|
|
struct route_nfo rnfo;
|
|
|
|
memset(&ss, 0, sizeof(struct sockaddr_storage));
|
|
memset(buff, 0, MAX_NPING_HOSTNAME_LEN+1);
|
|
|
|
/* Rewind spec index just in case someone has been playing around with it */
|
|
o.targets.rewindSpecs();
|
|
|
|
/* Get next host IP address and, if it is a named host, its hostname */
|
|
while ( this->getNextTargetAddressAndName(&ss, &slen, buff, MAX_NPING_HOSTNAME_LEN) == OP_SUCCESS ){
|
|
NpingTarget *mytarget = new NpingTarget();
|
|
mytarget->setTargetSockAddr(&ss, slen);
|
|
if( buff[0]=='\0')
|
|
mytarget->setNamedHost(false);
|
|
else{
|
|
mytarget->setSuppliedHostName(buff);
|
|
mytarget->setNamedHost(true);
|
|
}
|
|
|
|
/* For the moment, we only run this code if we are not dealing with IPv6 */
|
|
if( !o.ipv6() ){
|
|
|
|
/* Get all the information needed to send packets to this target.
|
|
* (Only in case we are not in unprivileged modes) */
|
|
if(o.getMode()!=TCP_CONNECT && o.getMode()!=UDP_UNPRIV){
|
|
result=route_dst( &ss, &rnfo, o.getDevice(), NULL );
|
|
if(result==false){
|
|
outError(QT_2, "Failed to determine route to host %s. Skipping it...", mytarget->getTargetIPstr() );
|
|
delete mytarget;
|
|
continue;
|
|
}
|
|
|
|
/* Determine next hop */
|
|
if( rnfo.direct_connect ){
|
|
mytarget->setDirectlyConnected(true);
|
|
mytarget->setNextHop(&ss, slen);
|
|
}
|
|
else{
|
|
mytarget->setDirectlyConnected(false);
|
|
mytarget->setNextHop(&rnfo.nexthop, sizeof(struct sockaddr_storage));
|
|
}
|
|
/* Source IP address that we should use when targeting this host */
|
|
mytarget->setSourceSockAddr(&rnfo.srcaddr, sizeof(struct sockaddr_storage));
|
|
|
|
/* If user requested to spoof IP source address, set it */
|
|
if( o.spoofSource() ){
|
|
mytarget->setSpoofedSourceSockAddr( o.getSourceSockAddr(), sizeof(struct sockaddr_storage));
|
|
}
|
|
|
|
/* Network interface */
|
|
mytarget->setDeviceNames( rnfo.ii.devname, rnfo.ii.devfullname );
|
|
mytarget->setDeviceType( rnfo.ii.device_type );
|
|
|
|
/* Set source MAC address */
|
|
mytarget->setSrcMACAddress( rnfo.ii.mac );
|
|
|
|
if( rnfo.ii.device_up == false )
|
|
outError(QT_2, "Device used for target host %s seems to be down.", mytarget->getTargetIPstr());
|
|
|
|
/* Determine next hop MAC address and target MAC address */
|
|
if( o.sendEth() ){
|
|
mytarget->determineNextHopMACAddress();
|
|
mytarget->determineTargetMACAddress(); /* Sets Target MAC only if is directly connected to us */
|
|
}
|
|
/* If we are in debug mode print target details */
|
|
if(o.getDebugging() >= DBG_3)
|
|
mytarget->printTargetDetails();
|
|
}
|
|
}else{
|
|
struct sockaddr_storage ss;
|
|
struct sockaddr_in6 *s6=(struct sockaddr_in6 *)&ss;
|
|
memset(&ss, 0, sizeof(sockaddr_storage));
|
|
s6->sin6_family=AF_INET6;
|
|
mytarget->setSourceSockAddr(&ss, sizeof(struct sockaddr_storage));
|
|
}
|
|
|
|
/* Insert current target into targets array */
|
|
this->Targets.push_back(mytarget);
|
|
}
|
|
|
|
/* getNextTarget() checks this to ensure user has previously called processSpecs() */
|
|
this->ready=true;
|
|
o.targets.rewind();
|
|
return OP_SUCCESS;
|
|
} /* End of getTargetSpecCount() */
|
|
|
|
|
|
|
|
NpingTarget *NpingTargets::getNextTarget(){
|
|
/* When !ready it means that processSpecs() has not been called yet. This
|
|
* happens when user hits CTRL-C early. */
|
|
if( this->ready == false )
|
|
return NULL;
|
|
/* Did we reach the end of the vector in the last call? */
|
|
if( this->current_target >= this->Targets.size() )
|
|
return NULL;
|
|
outPrint(DBG_4, "Next target returned by getNextTarget(): Targets[%lu/%lu] --> %s \n", this->current_target, (unsigned long) this->Targets.size(), this->Targets.at(this->current_target)->getTargetIPstr() );
|
|
return this->Targets.at( this->current_target++ );
|
|
} /* End of getNextTarget() */
|
|
|
|
|
|
int NpingTargets::rewind(){
|
|
current_target=0;
|
|
return OP_SUCCESS;
|
|
} /* End of rewind() */
|
|
|
|
/* Frees all of the Targets. Returns the number of freed targets. The number
|
|
* return should match value returned by getTargetsFetched(). */
|
|
unsigned long int NpingTargets::freeTargets(){
|
|
unsigned long int cnt=0;
|
|
while(!this->Targets.empty()) {
|
|
this->currenths = Targets.back();
|
|
delete currenths;
|
|
Targets.pop_back();
|
|
cnt++;
|
|
}
|
|
return cnt;
|
|
} /* End of freeTargets() */
|
|
|
|
|
|
NpingTarget *NpingTargets::findTarget(struct sockaddr_storage *tt){
|
|
size_t i=0;
|
|
struct sockaddr_storage ss;
|
|
size_t ss_len;
|
|
struct sockaddr_in *s_ip4=(struct sockaddr_in *)&ss;
|
|
struct sockaddr_in6 *s_ip6=(struct sockaddr_in6 *)&ss;
|
|
struct sockaddr_in *t_ip4=(struct sockaddr_in *)tt;
|
|
struct sockaddr_in6 *t_ip6=(struct sockaddr_in6 *)tt;
|
|
|
|
if (tt==NULL)
|
|
return NULL;
|
|
|
|
for(i=0; i<this->Targets.size(); i++){
|
|
this->Targets[i]->getTargetSockAddr(&ss, &ss_len);
|
|
/* Are we are dealing with IPv4 addresses? */
|
|
if( s_ip4->sin_family==AF_INET && t_ip4->sin_family==AF_INET){
|
|
|
|
if( !memcmp(&(s_ip4->sin_addr), &(t_ip4->sin_addr), sizeof(struct in_addr)) )
|
|
return this->Targets[i];
|
|
}
|
|
/* Are they IPv6 addresses? */
|
|
else if( s_ip6->sin6_family==AF_INET6 && t_ip6->sin6_family==AF_INET6 ){
|
|
if( !memcmp(&(s_ip6->sin6_addr), &(t_ip6->sin6_addr), sizeof(struct in6_addr)) )
|
|
return this->Targets[i];
|
|
}
|
|
/* Unknown type of address, skipping... */
|
|
else{
|
|
continue;
|
|
}
|
|
}
|
|
return NULL;
|
|
} /* End of findTarget() */
|