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ArgParser.cc
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/***************************************************************************
* ArgParser.cc -- The ArgParser Class is the one in charge of command line*
* argument parsing. Essentially it contains method parseArguments() that *
* takes the usual argc and *argv[] parameters and fills the general *
* NpingOps class with all the information needed for the execution of *
* Nping. *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
* *
* The Nmap Security Scanner is (C) 1996-2016 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) *
* *
***************************************************************************/
#include "nping.h"
#include "ArgParser.h"
#include "NpingOps.h"
#include "common.h"
#include "nbase.h"
#include "utils.h"
#include "utils_net.h"
#include "output.h"
extern NpingOps o;
ArgParser::ArgParser() {
} /* End of ArgParser constructor */
ArgParser::~ArgParser() {
} /* End of ArgParser destructor */
int ArgParser::parseArguments(int argc, char *argv[]) {
int arg=0;
int auxint=0;
long l=0;
int option_index=0;
struct in_addr aux_ip4;
u32 aux32=0;
u16 aux16=0;
u8 aux8=0;
u8 auxmac[6];
u8 *auxbuff=NULL;
u16 *portlist=NULL;
char errstr[256];
struct option long_options[] = {
/* Probe modes */
{"tcp-connect", no_argument, 0, 0},
{"tcp", no_argument, 0, 0},
{"udp", no_argument, 0, 0},
{"icmp", no_argument, 0, 0},
{"arp", no_argument, 0, 0},
{"tr", no_argument, 0, 0},
{"traceroute", no_argument, 0, 0},
/* Mode shortcuts */
{"echo-request", no_argument, 0, 0},
{"destination-unreachable", no_argument, 0, 0},
{"dest-unr", no_argument, 0, 0},
{"timestamp", no_argument, 0, 0},
{"timestamp-request", no_argument, 0, 0},
{"information", no_argument, 0, 0},
{"information-request", no_argument, 0, 0},
{"netmask", no_argument, 0, 0},
{"netmask-request", no_argument, 0, 0},
{"arp-request", no_argument, 0, 0},
{"arp-reply", no_argument, 0, 0},
{"rarp-request", no_argument, 0, 0},
{"rarp-reply", no_argument, 0, 0},
/* TCP/UDP */
{"source-port", required_argument, 0, 'g'},
{"dest-port", required_argument, 0, 'p'},
{"seq", required_argument, 0, 0},
{"flags", required_argument, 0, 0},
{"ack", required_argument, 0, 0},
{"win", required_argument, 0, 0},
{"badsum", no_argument, 0, 0},
/* ICMP */
{"icmp-type", required_argument, 0, 0},
{"icmp-code", required_argument, 0, 0},
{"icmp-id", required_argument, 0, 0},
{"icmp-seq", required_argument, 0, 0},
{"icmp-redirect-addr", required_argument, 0, 0},
{"icmp-param-pointer", required_argument, 0, 0},
{"icmp-advert-lifetime", required_argument, 0, 0},
{"icmp-advert-entry", required_argument, 0, 0},
{"icmp-orig-time", required_argument, 0, 0},
{"icmp-recv-time", required_argument, 0, 0},
{"icmp-trans-time", required_argument, 0, 0},
/* TODO: Add relevant flags for different ICMP options */
/* ARP/RARP */
/* 1) ARP operation codes. */
{"arp-type", required_argument, 0, 0},
{"rarp-type", required_argument, 0, 0},
{"arp-code", required_argument, 0, 0},
{"rarp-code", required_argument, 0, 0},
{"arp-operation", required_argument, 0, 0},
{"arp-op", required_argument, 0, 0},
{"rarp-operation", required_argument, 0, 0},
{"rarp-op", required_argument, 0, 0},
/* 2) Rest of the fields */
{"arp-sender-mac", required_argument, 0, 0},
{"arp-sender-ip", required_argument, 0, 0},
{"arp-target-mac", required_argument, 0, 0},
{"arp-target-ip", required_argument, 0, 0},
{"rarp-sender-mac", required_argument, 0, 0},
{"rarp-sender-ip", required_argument, 0, 0},
{"rarp-target-mac", required_argument, 0, 0},
{"rarp-target-ip", required_argument, 0, 0},
/* Ethernet */
{"dest-mac", required_argument, 0, 0},
{"source-mac", required_argument, 0, 0},
{"spoof-mac", required_argument, 0, 0},
{"ethertype", required_argument, 0, 0},
{"ethtype", required_argument, 0, 0},
{"ether-type", required_argument, 0, 0},
/* IPv4 */
{"IPv4", no_argument, 0, '4'},
{"ipv4", no_argument, 0, '4'},
{"source-ip", required_argument, 0, 'S'},
{"dest-ip", required_argument, 0, 0},
{"tos", required_argument, 0, 0},
{"id", required_argument, 0, 0},
{"df", no_argument, 0, 0},
{"mf", no_argument, 0, 0},
{"ttl", required_argument, 0, 0},
{"badsum-ip", no_argument, 0, 0},
{"ip-options", required_argument, 0, 0},
{"mtu", required_argument, 0, 0},
/* Remember also: "-f" : Fragment packets*/
/* IPv6 */
{"IPv6", no_argument, 0, '6'},
{"ipv6", no_argument, 0, '6'},
{"hop-limit", required_argument, 0, 0},
{"tc", required_argument, 0, 0},
{"traffic-class", required_argument, 0, 0},
{"flow", required_argument, 0, 0},
/* Payload */
{"data", required_argument, 0, 0},
{"data-length", required_argument, 0, 0},
{"data-string", required_argument, 0, 0},
/* Echo client/server */
{"echo-client", required_argument, 0, 0},
{"ec", required_argument, 0, 0},
{"echo-server", required_argument, 0, 0},
{"es", required_argument, 0, 0},
{"echo-port", required_argument, 0, 0},
{"ep", required_argument, 0, 0},
{"no-crypto", no_argument, 0, 0},
{"nc", no_argument, 0, 0},
{"once", no_argument, 0, 0},
{"safe-payloads", no_argument, 0, 0},
{"include-payloads", no_argument, 0, 0},
/* Timing and performance */
{"delay", required_argument, 0, 0},
{"rate", required_argument, 0, 0},
/* Misc */
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"count", required_argument, 0, 'c'},
{"interface", required_argument, 0, 'e'},
{"privileged", no_argument, 0, 0},
{"unprivileged", no_argument, 0, 0},
{"send-eth", no_argument, 0, 0},
{"send-ip", no_argument, 0, 0},
{"bpf-filter", required_argument, 0, 0},
{"filter", required_argument, 0, 0},
{"nsock-engine", required_argument, 0, 0},
{"no-capture", no_argument, 0, 'N'},
{"hide-sent", no_argument, 0, 'H'},
/* Output */
{"verbose", optional_argument, 0, 'v'},
{"reduce-verbosity", optional_argument, 0, 'q'},
{"debug", no_argument, 0, 0},
{"quiet", no_argument, 0, 0},
{0, 0, 0, 0}
};
if( argc <= 1 ){
this->printUsage();
exit(1);
}
/* Let's get this parsing party started */
while((arg = getopt_long_only(argc,argv,"46c:d::e:fg:hHK:NP:q::p:S:Vv::", long_options, &option_index)) != EOF) {
aux8=aux16=aux32=aux_ip4.s_addr=0;
switch(arg) {
case 0:
/* PROBE MODES ***************************************************************/
if (optcmp(long_options[option_index].name, "tcp-connect") == 0) {
if( o.issetMode() && o.getMode()!=TCP_CONNECT)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(TCP_CONNECT) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(TCP_CONNECT);
} else if (optcmp(long_options[option_index].name, "tcp") == 0) {
if( o.issetMode() && o.getMode()!=TCP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(TCP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(TCP);
} else if (optcmp(long_options[option_index].name, "udp") == 0) {
if( o.issetMode() && o.getMode()!=UDP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(UDP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(UDP);
} else if (optcmp(long_options[option_index].name, "icmp") == 0) {
if( o.issetMode() && o.getMode()!=ICMP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(ICMP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(ICMP);
} else if (optcmp(long_options[option_index].name, "arp") == 0) {
if( o.issetMode() && o.getMode()!=ARP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(ARP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(ARP);
} else if (optcmp(long_options[option_index].name, "traceroute") == 0 ||
optcmp(long_options[option_index].name, "tr") == 0) {
o.enableTraceroute();
/* Now shortcuts that we support but that are not actual modes */
} else if (optcmp(long_options[option_index].name, "arp-request") == 0) {
if( o.issetMode() && o.getMode()!=ARP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(ARP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(ARP);
o.setARPOpCode(OP_ARP_REQUEST);
} else if (optcmp(long_options[option_index].name, "arp-reply") == 0) {
if( o.issetMode() && o.getMode()!=ARP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(ARP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(ARP);
o.setARPOpCode(OP_ARP_REPLY);
} else if (optcmp(long_options[option_index].name, "rarp-request") == 0) {
if( o.issetMode() && o.getMode()!=ARP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(ARP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(ARP);
o.setARPOpCode(OP_RARP_REQUEST);
} else if (optcmp(long_options[option_index].name, "rarp-reply") == 0) {
if( o.issetMode() && o.getMode()!=ARP)
nping_fatal(QT_3,"Cannot specify more than one probe mode. Choose either %s or %s.",
strdup( o.mode2Ascii(ARP) ), strdup( o.mode2Ascii(o.getMode()) ) );
o.setMode(ARP);
o.setARPOpCode(OP_RARP_REPLY);
} else if (optcmp(long_options[option_index].name, "destination-unreachable") == 0 ||
optcmp(long_options[option_index].name, "dest-unr") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP Destination unreachable messages.", o.mode2Ascii(o.getMode()));
o.setMode(ICMP);
o.setICMPType( ICMP_UNREACH );
} else if( optcmp(long_options[option_index].name, "echo-request") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP Echo request messages.", o.mode2Ascii(o.getMode()));
o.setMode(ICMP);
o.setICMPType( ICMP_ECHO );
} else if (optcmp(long_options[option_index].name, "timestamp") == 0 ||
optcmp(long_options[option_index].name, "timestamp-request") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP Timestamp request messages.", o.mode2Ascii(o.getMode()));
o.setMode(ICMP);
o.setICMPType( ICMP_TSTAMP );
} else if (optcmp(long_options[option_index].name, "information") == 0 ||
optcmp(long_options[option_index].name, "information-request") == 0 ) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP Information request messages.", o.mode2Ascii(o.getMode()));
o.setMode(ICMP);
o.setICMPType( ICMP_TSTAMP );
} else if (optcmp(long_options[option_index].name, "netmask") == 0 ||
optcmp(long_options[option_index].name, "netmask-request") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP Information request messages.", o.mode2Ascii(o.getMode()));
o.setMode(ICMP);
o.setICMPType( ICMP_MASK );
/* TCP/UDP OPTIONS ***********************************************************/
/* TCP Sequence number */
} else if (optcmp(long_options[option_index].name, "seq") == 0) {
if ( parse_u32(optarg, &aux32) != OP_SUCCESS )
nping_fatal(QT_3, "Invalid TCP Sequence number. Value must be 0<=N<2^32.");
else
o.setTCPSequence( aux32 );
/* TCP Flags */
} else if (optcmp(long_options[option_index].name, "flags") == 0) {
/* CASE 1: User is a freak and supplied a numeric value directly */
/* We initially parse it as an u32 so we give the proper error
* for values like 0x100. */
if ( parse_u32(optarg, &aux32) == OP_SUCCESS ){
if( meansRandom(optarg) ){
aux8=get_random_u8();
}else if(aux32>255){
nping_fatal(QT_3, "Invalid TCP flag specification. Numerical values must be in the range [0,255].");
}else{
aux8=(u8)aux32;
}
if(aux8==0){
o.unsetAllFlagsTCP();
}else{
if( aux8 & 0x80 )
o.setFlagTCP( FLAG_CWR );
if( aux8 & 0x40 )
o.setFlagTCP( FLAG_ECN );
if( aux8 & 0x20 )
o.setFlagTCP( FLAG_URG );
if( aux8 & 0x10 )
o.setFlagTCP( FLAG_ACK );
if( aux8 & 0x08 )
o.setFlagTCP( FLAG_PSH );
if( aux8 & 0x04 )
o.setFlagTCP( FLAG_RST );
if( aux8 & 0x02 )
o.setFlagTCP( FLAG_SYN );
if( aux8 & 0x01 )
o.setFlagTCP( FLAG_FIN );
}
/* CASE 2: User supplied a list of flags in the format "syn,ack,ecn" */
}else if( contains(optarg, ",") ){
if( ((strlen(optarg)+1)%4) !=0 )
nping_fatal(QT_3, "Invalid format in --flag. Make sure you specify a comma-separated list that contains 3-character flag names (e.g: --flags syn,ack,psh)");
for( size_t f=0; f< strlen(optarg); f+=4 ){
if(!strncasecmp((optarg+f), "CWR",3)){ o.setFlagTCP(FLAG_CWR); }
else if(!strncasecmp((optarg+f), "ECN",3)){ o.setFlagTCP(FLAG_ECN); }
else if(!strncasecmp((optarg+f), "ECE",3)){ o.setFlagTCP(FLAG_ECN); }
else if(!strncasecmp((optarg+f), "URG",3)){ o.setFlagTCP(FLAG_URG); }
else if(!strncasecmp((optarg+f), "ACK",3)){ o.setFlagTCP(FLAG_ACK); }
else if(!strncasecmp((optarg+f), "PSH",3)){ o.setFlagTCP(FLAG_PSH); }
else if(!strncasecmp((optarg+f), "RST",3)){ o.setFlagTCP(FLAG_RST); }
else if(!strncasecmp((optarg+f), "SYN",3)){ o.setFlagTCP(FLAG_SYN); }
else if(!strncasecmp((optarg+f), "FIN",3)){ o.setFlagTCP(FLAG_FIN); }
else if(!strncasecmp((optarg+f), "ALL",3)){ o.setAllFlagsTCP(); }
else if(!strncasecmp((optarg+f), "NIL",3)){ o.unsetAllFlagsTCP(); }
else{
char wrongopt[4];
memcpy(wrongopt, (optarg+f), 3);
wrongopt[3]='\0';
nping_fatal(QT_3, "Invalid TCP flag specification: \"%s\"", wrongopt);
}
}
/* CASE 3: User supplied flag initials in format "XYZ..." */
}else{
bool flag3_ok=false;
/* SPECIAL CASE: User entered exactly 3 chars so we don't know if
* only one flag was entered or three flags in format "XYZ..." */
if( strlen(optarg) == 3 ){
if(!strcasecmp(optarg, "CWR")){ o.setFlagTCP(FLAG_CWR); flag3_ok=true; }
else if(!strcasecmp(optarg, "ECN")){ o.setFlagTCP(FLAG_ECN); flag3_ok=true; }
else if(!strcasecmp(optarg, "ECE")){ o.setFlagTCP(FLAG_ECN); flag3_ok=true; }
else if(!strcasecmp(optarg, "URG")){ o.setFlagTCP(FLAG_URG); flag3_ok=true; }
else if(!strcasecmp(optarg, "ACK")){ o.setFlagTCP(FLAG_ACK); flag3_ok=true; }
else if(!strcasecmp(optarg, "PSH")){ o.setFlagTCP(FLAG_PSH); flag3_ok=true; }
else if(!strcasecmp(optarg, "RST")){ o.setFlagTCP(FLAG_RST); flag3_ok=true; }
else if(!strcasecmp(optarg, "SYN")){ o.setFlagTCP(FLAG_SYN); flag3_ok=true; }
else if(!strcasecmp(optarg, "FIN")){ o.setFlagTCP(FLAG_FIN); flag3_ok=true; }
else if(!strcasecmp(optarg, "ALL")){ o.setAllFlagsTCP(); flag3_ok=true; }
else if(!strcasecmp(optarg, "NIL")){ o.unsetAllFlagsTCP(); flag3_ok=true; }
else{
flag3_ok=false;
}
}else if( strlen(optarg) == 0 ){
o.unsetAllFlagsTCP();
}
/* SPECIAL CASE: User supplied special flag "NONE" */
if(!strcasecmp(optarg, "NONE") ){ o.unsetAllFlagsTCP(); flag3_ok=true; }
/* User definitely supplied flag initials in format "XYZ..."*/
if( flag3_ok==false ){
for(size_t f=0; f<strlen(optarg); f++){
switch( optarg[f] ){
case 'C': case 'c': o.setFlagTCP(FLAG_CWR); break;
case 'E': case 'e': o.setFlagTCP(FLAG_ECN); break;
case 'U': case 'u': o.setFlagTCP(FLAG_URG); break;
case 'A': case 'a': o.setFlagTCP(FLAG_ACK); break;
case 'P': case 'p': o.setFlagTCP(FLAG_PSH); break;
case 'R': case 'r': o.setFlagTCP(FLAG_RST); break;
case 'S': case 's': o.setFlagTCP(FLAG_SYN); break;
case 'F': case 'f': o.setFlagTCP(FLAG_FIN); break;
default:
if( isdigit(optarg[f]) )
nping_fatal(QT_3, "Invalid TCP flag supplied (%c). If you want to specify flags using a number you must add prefix \"0x\"", optarg[f]);
else
nping_fatal(QT_3, "Invalid TCP flag supplied: %c", optarg[f]);
}
}
}
}
/* TCP Acknowledgement number */
} else if (optcmp(long_options[option_index].name, "ack") == 0) {
if ( parse_u32(optarg, &aux32) != OP_SUCCESS )
nping_fatal(QT_3, "Invalid TCP ACK number. Value must be 0<=N<2^32.");
else
o.setTCPAck( aux32 );
/* TCP Window size */
} else if (optcmp(long_options[option_index].name, "win") == 0) {
if ( parse_u16(optarg, &aux16) != OP_SUCCESS )
nping_fatal(QT_3, "Invalid TCP Window size. Value must be 0<=N<65535.");
else
o.setTCPWindow( aux16 );
/* Set a bad TCP checksum */
} else if (optcmp(long_options[option_index].name, "badsum") == 0) {
o.enableBadsum();
/* ICMP OPTIONS **************************************************************/
/* ICMP Type */
} else if (optcmp(long_options[option_index].name, "icmp-type") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
/* User may have supplied type as a number */
if ( parse_u8(optarg, &aux8) == OP_SUCCESS )
o.setICMPType( aux8 );
/* Or maybe the supplied arg is a string that we can recognize */
else if ( atoICMPType(optarg, &aux8) == OP_SUCCESS )
o.setICMPType( aux8 );
/* Looks like user supplied a bogus value */
else
nping_fatal(QT_3, "Invalid ICMP Type. Value must be 0<=N<=255.");
/* Warn if ICMP Type is not RFC-compliant */
if( !isICMPType(aux8) )
nping_warning(QT_1, "Warning: Specified ICMP type (%d) is not RFC compliant.", aux8);
/* ICMP Code */
} else if (optcmp(long_options[option_index].name, "icmp-code") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
/* User may have supplied code as a number */
if ( parse_u8(optarg, &aux8) == OP_SUCCESS )
o.setICMPCode( aux8 );
/* Or maybe the supplied arg is a string that we can recognize */
else if ( atoICMPCode(optarg, &aux8) == OP_SUCCESS )
o.setICMPCode( aux8 );
/* Looks like user supplied a bogus value */
else
nping_fatal(QT_3, "Invalid ICMP Code. Value must be 0<=N<=255.");
/* ICMP Identification field */
} else if (optcmp(long_options[option_index].name, "icmp-id") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
if ( parse_u16(optarg, &aux16) == OP_SUCCESS )
o.setICMPIdentifier( aux16 );
else
nping_fatal(QT_3, "Invalid ICMP Identifier. Value must be 0<=N<2^16.");
/* ICMP Sequence number */
} else if (optcmp(long_options[option_index].name, "icmp-seq") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
if ( parse_u16(optarg, &aux16) == OP_SUCCESS )
o.setICMPSequence( aux16 );
else
nping_fatal(QT_3, "Invalid ICMP Sequence number. Value must be 0<=N<2^16.");
/* ICMP Redirect Address */
} else if (optcmp(long_options[option_index].name, "icmp-redirect-addr") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
if( meansRandom(optarg) ){
while ( (aux_ip4.s_addr=get_random_u32()) == 0 );
o.setICMPRedirectAddress( aux_ip4 );
}else{
if ( atoIP(optarg, &aux_ip4) != OP_SUCCESS)
nping_fatal(QT_3, "Could not resolve specified ICMP Redirect Address.");
else
o.setICMPRedirectAddress( aux_ip4 );
}
/* ICMP Parameter problem pointer */
} else if (optcmp(long_options[option_index].name, "icmp-param-pointer") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
if ( parse_u8(optarg, &aux8) == OP_SUCCESS )
o.setICMPParamProblemPointer( aux8 );
else
nping_fatal(QT_3, "Invalid ICMP Parameter problem pointer. Value must be 0<=N<=255..");
/* ICMP Router Advertisement lifetime */
} else if (optcmp(long_options[option_index].name, "icmp-advert-lifetime") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
if ( parse_u16(optarg, &aux16) == OP_SUCCESS )
o.setICMPRouterAdvLifetime( aux16 );
else
nping_fatal(QT_3, "Invalid ICMP Router advertisement lifetime. Value must be 0<=N<2^16..");
/* ICMP Router Advertisement entry */
} else if (optcmp(long_options[option_index].name, "icmp-advert-entry") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
/* Format should be "IPADDR,PREF": "192.168.10.99,31337" */
if( meansRandom(optarg) ){
while( (aux_ip4.s_addr=get_random_u32()) == 0);
o.addICMPAdvertEntry( aux_ip4, get_random_u32() );
}else{
struct in_addr aux_addr;
u32 aux_pref=0;
parseAdvertEntry(optarg, &aux_addr, &aux_pref); /* fatal()s on error */
o.addICMPAdvertEntry(aux_addr, aux_pref);
}
/* ICMP Timestamp originate timestamp */
} else if (optcmp(long_options[option_index].name, "icmp-orig-time") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
this->parseICMPTimestamp(optarg, &aux32);
o.setICMPOriginateTimestamp(aux32);
/* ICMP Timestamp receive timestamp */
} else if (optcmp(long_options[option_index].name, "icmp-recv-time") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
this->parseICMPTimestamp(optarg, &aux32);
o.setICMPReceiveTimestamp(aux32);
/* ICMP Timestamp transmit timestamp */
} else if (optcmp(long_options[option_index].name, "icmp-trans-time") == 0) {
if ( o.issetMode() && o.getMode() != ICMP )
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ICMP messages.", o.mode2Ascii(o.getMode()));
this->parseICMPTimestamp(optarg, &aux32);
o.setICMPTransmitTimestamp(aux32);
/* TODO: Add more relevant flags for different ICMP options */
/* ARP/RARP OPTIONS **********************************************************/
/* Operation code */
} else if (optcmp(long_options[option_index].name, "arp-type") == 0 ||
optcmp(long_options[option_index].name, "rarp-type") == 0 ||
optcmp(long_options[option_index].name, "arp-code") == 0 ||
optcmp(long_options[option_index].name, "rarp-code") == 0 ||
optcmp(long_options[option_index].name, "arp-operation") == 0 ||
optcmp(long_options[option_index].name, "arp-op") == 0 ||
optcmp(long_options[option_index].name, "rarp-operation") == 0 ||
optcmp(long_options[option_index].name, "rarp-op") == 0 ){
if ( o.issetMode() && o.getMode() != ARP ){
nping_fatal(QT_3,"You cannot specify mode %s if you want to send ARP messages.", o.mode2Ascii(o.getMode()));
}else if( !o.issetMode() ){
o.setMode(ARP);
}
if( atoARPOpCode(optarg, &aux16) != OP_SUCCESS ){
nping_fatal(QT_3, "Invalid ARP type/operation code");
}else{
o.setARPOpCode(aux16);
}
/* ARP Sender MAC Address */
} else if (optcmp(long_options[option_index].name, "arp-sender-mac") == 0 ||
optcmp(long_options[option_index].name, "rarp-sender-mac") == 0 ){
if ( parseMAC(optarg, auxmac) != OP_SUCCESS ){
nping_fatal(QT_3, "Invalid ARP Sender MAC address.");
}else{
o.setARPSenderHwAddr(auxmac);
}
/* ARP Sender IP Address */
} else if (optcmp(long_options[option_index].name, "arp-sender-ip") == 0 ||
optcmp(long_options[option_index].name, "rarp-sender-ip") == 0 ){
if ( atoIP(optarg, &aux_ip4)!=OP_SUCCESS ){
nping_fatal(QT_3, "Invalid ARP Sender IP address.");
}else{
o.setARPSenderProtoAddr(aux_ip4);
}
/* ARP Target MAC Address */
} else if (optcmp(long_options[option_index].name, "arp-target-mac") == 0 ||
optcmp(long_options[option_index].name, "rarp-target-mac") == 0 ){
if ( parseMAC(optarg, auxmac) != OP_SUCCESS ){
nping_fatal(QT_3, "Invalid ARP Target MAC address.");
}else{
o.setARPTargetHwAddr(auxmac);
}
/* ARP Target IP Address */
} else if (optcmp(long_options[option_index].name, "arp-target-ip") == 0 ||
optcmp(long_options[option_index].name, "rarp-target-ip") == 0 ){
if ( atoIP(optarg, &aux_ip4)!=OP_SUCCESS ){
nping_fatal(QT_3, "Invalid ARP Target IP address.");
}else{
o.setARPTargetProtoAddr(aux_ip4);
}
/* ETHERNET OPTIONS **********************************************************/
/* Destination MAC address */
} else if (optcmp(long_options[option_index].name, "dest-mac") == 0 ){
if ( parseMAC(optarg, auxmac) != OP_SUCCESS ){
nping_fatal(QT_3, "Invalid Ethernet Destination MAC address.");
}else{
o.setDestMAC(auxmac);
}
if( !o.issetSendPreference() )
o.setSendPreference(PACKET_SEND_ETH_STRONG);
/* Source MAC address */
} else if (optcmp(long_options[option_index].name, "source-mac") == 0 ||
optcmp(long_options[option_index].name, "spoof-mac") == 0 ){
if ( parseMAC(optarg, auxmac) != OP_SUCCESS ){
nping_fatal(QT_3, "Invalid Ethernet Source MAC address.");
}else{
o.setSourceMAC(auxmac);
}
if( !o.issetSendPreference() )
o.setSendPreference(PACKET_SEND_ETH_STRONG);
/* Ethernet type field */
} else if (optcmp(long_options[option_index].name, "ethertype") == 0 ||
optcmp(long_options[option_index].name, "ethtype") == 0 ||
optcmp(long_options[option_index].name, "ether-type") == 0 ){
if ( parse_u16(optarg, &aux16) == OP_SUCCESS ){
o.setEtherType(aux16);
}else if ( atoEtherType(optarg, &aux16) == OP_SUCCESS ){
o.setEtherType(aux16);
}else{
nping_fatal(QT_3, "Invalid Ethernet Type.");
}
if( !o.issetSendPreference() )
o.setSendPreference(PACKET_SEND_ETH_STRONG);
/* IPv4 OPTIONS **************************************************************/
/* Destination IP address. This is just another way to specify targets,
* provided for consistency with the rest of the parameters. */
} else if (optcmp(long_options[option_index].name, "dest-ip") == 0 ){
o.targets.addSpec( strdup(optarg) );
/* IP Type of service*/
} else if (optcmp(long_options[option_index].name, "tos") == 0 ){
if ( parse_u8(optarg, &aux8) == OP_SUCCESS ){
o.setTOS(aux8);
}else{
nping_fatal(QT_3,"TOS option must be a number between 0 and 255 (inclusive)");
}
/* IP Identification field */
} else if (optcmp(long_options[option_index].name, "id") == 0 ){
if ( parse_u16(optarg, &aux16) == OP_SUCCESS ){
o.setIdentification(aux16);
}else{
nping_fatal(QT_3,"Identification must be a number between 0 and 65535 (inclusive)");
}
/* Don't fragment bit */
} else if (optcmp(long_options[option_index].name, "df") == 0 ){
o.setDF();
/* More fragments bit */
} else if (optcmp(long_options[option_index].name, "mf") == 0 ){
o.setMF();
/* Time to live (hop-limit in IPv6) */
} else if (optcmp(long_options[option_index].name, "ttl") == 0 ||
optcmp(long_options[option_index].name, "hop-limit") == 0 ){
/* IPv6 TTL field is named "hop limit" but has exactly the same
* function as in IPv4 so handling of that option should be the
* same in both versions. */
if ( parse_u8(optarg, &aux8) == OP_SUCCESS ){
o.setTTL(aux8);
}else{
nping_fatal(QT_3,"%s option must be a number between 0 and 255 (inclusive)",
optcmp(long_options[option_index].name, "ttl")==0 ? "TTL" : "Hop Limit"
);
}
/* TODO: At some point we may want to let users specify TTLs like "linux",
* "bsd" etc, so the default TTL for those systems is used. Check
* http://members.cox.net/~ndav1/self_published/TTL_values.html
* for more information */
/* Set up a bad IP checksum */
} else if (optcmp(long_options[option_index].name, "badsum-ip") == 0 ){
o.enableBadsumIP();
/* IP Options */
} else if (optcmp(long_options[option_index].name, "ip-options") == 0 ){
/* We need to know if options specification is correct so we perform
* a little test here, instead of waiting until the IPv4Header
* complains and fatal()s we just call parse_ip_options() ourselves.
* The call should fatal if something is wrong with user-supplied opts */
int foo=0, bar=0;
u8 buffer[128];
if( parse_ip_options(optarg, buffer, 128, &foo, &bar, errstr, sizeof(errstr)) < 0 )
nping_fatal(QT_3, "Incorrect IP options specification.");
/* If we get here it's safe to store the options */
o.setIPOptions( optarg );
/* Maximum Transmission Unit */
} else if (optcmp(long_options[option_index].name, "mtu") == 0 ){
/* Special treatment for random here since the generated number must be n%8==0 */
if(!strcasecmp("rand", optarg) || !strcasecmp("random", optarg)){
aux16=get_random_u16(); /* We limit the random mtu to a max of 65535 */
/* Make sure generated number is multiple of 8, adding a few units */
if(aux16 > 8 )
aux16-=(aux16%8);
else
aux16+=(8-(aux16%8));
o.setMTU(aux16);
}else if ( (parse_u32(optarg, &aux32)==OP_SUCCESS) && aux32!=0 && aux32%8==0){
o.setMTU(aux32);
}else{
nping_fatal(QT_3,"MTU must be >0 and multiple of 8");
}
/* IPv6 OPTIONS **************************************************************/
/* IPv6 Traffic class */
} else if (optcmp(long_options[option_index].name, "traffic-class") == 0 ||
optcmp(long_options[option_index].name, "tc") == 0 ){
if ( parse_u8(optarg, &aux8) == OP_SUCCESS )
o.setTrafficClass(aux8);
else
nping_fatal(QT_3,"IPv6 Traffic Class must be a number between 0 and 255 (inclusive)");
/* IPv6 Flow label */
} else if (optcmp(long_options[option_index].name, "flow") == 0 ){
if( meansRandom(optarg) ){
o.setFlowLabel( get_random_u32()%1048575 ); /* Mod 2^20 so it doesn't exceed 20bits */
}else if ( parse_u32(optarg, &aux32) == OP_SUCCESS ){
if( aux32>1048575 )
nping_fatal(QT_3, "IPv6 Flow Label cannot be greater than 1048575 ");
else
o.setFlowLabel(aux32);
}else{
nping_fatal(QT_3,"IPv6 Flow Label must be a number between 0 and 1048575");
}
/* PACKET PAYLOAD OPTIONS ***************************************************/
/* Hexadecimal payload specification */
} else if (optcmp(long_options[option_index].name, "data") == 0 ){
u8 *tempbuff=NULL;
size_t len=0;
if( (tempbuff=parseBufferSpec(optarg, &len))==NULL)
nping_fatal(QT_3,"Invalid hex string specification\n");
else{
u8 *buff = (u8 *) safe_malloc(len);
memcpy(buff, tempbuff, len);
o.setPayloadBuffer(buff, len);
o.setPayloadType(PL_HEX);
}
/* Random payload */
} else if (optcmp(long_options[option_index].name, "data-length") == 0 ){
if( o.issetPayloadType() != false )
nping_fatal(QT_3,"Only one type of payload may be selected.");
if( meansRandom(optarg) ){
/* We do not generate more than Ethernet standard MTU */
aux32 = 1 + get_random_u16() % (MAX_RANDOM_PAYLOAD-1);
}else if ( parse_u32(optarg, &aux32) != OP_SUCCESS ){
nping_fatal(QT_3,"Invalid payload length specification");
}
if ( aux32 > MAX_PAYLOAD_ALLOWED )
nping_fatal(QT_3,"data-length must be a value between 0 and %d.", MAX_PAYLOAD_ALLOWED);
if ( aux32 > MAX_RECOMMENDED_PAYLOAD )
nping_print(QT_3, "WARNING: Payload exceeds maximum recommended payload (%d)", MAX_RECOMMENDED_PAYLOAD);
o.setPayloadType(PL_RAND);
/* Allocate a buffer big enough to hold the desired payload */
if( (auxbuff=(u8 *)safe_malloc(aux32)) == NULL )
nping_fatal(QT_3,"Not enough memory to store payload.");
/* Generate random data and store the payload */
get_random_bytes(auxbuff, aux32);
o.setPayloadBuffer(auxbuff, aux32);
/* ASCII string payload */
} else if (optcmp(long_options[option_index].name, "data-string") == 0 ){
o.setPayloadType(PL_STRING);
int plen=strlen(optarg);
if ( plen>MAX_PAYLOAD_ALLOWED )
nping_fatal(QT_3,"data-string must be between 0 and %d characters.", MAX_PAYLOAD_ALLOWED);
if ( plen > MAX_RECOMMENDED_PAYLOAD )
nping_print(QT_3, "WARNING: Payload exceeds maximum recommended payload (%d)", MAX_RECOMMENDED_PAYLOAD);
if( meansRandom(optarg) ){
auxbuff=(u8*)strdup(getRandomTextPayload());
plen=strlen((char*)auxbuff);
}else {
auxbuff=(u8*)safe_zalloc(plen);
memcpy(auxbuff, optarg, plen);
}
o.setPayloadBuffer((u8*)auxbuff, plen);
/* ECHO C/S MODE OPTIONS *****************************************************/
} else if (optcmp(long_options[option_index].name, "echo-client")==0 ||
optcmp(long_options[option_index].name, "ec")==0 ){
o.setRoleClient();
o.setEchoPassphrase(optarg);
} else if (optcmp(long_options[option_index].name, "echo-server")==0 ||
optcmp(long_options[option_index].name, "es")==0 ){
o.setRoleServer();
o.setEchoPassphrase(optarg);
} else if (optcmp(long_options[option_index].name, "echo-port")==0 ||
optcmp(long_options[option_index].name, "ep")==0 ){
if ( parse_u16(optarg, &aux16) == OP_SUCCESS ){
if(aux16==0)
nping_fatal(QT_3, "Invalid echo port. Port can't be zero.");
else
o.setEchoPort( aux16 );
}else{
nping_fatal(QT_3, "Invalid echo port. Value must be 0<N<2^16.");
}
} else if (optcmp(long_options[option_index].name, "once")==0 ){
o.setOnce(true);
} else if (optcmp(long_options[option_index].name, "no-crypto")==0 ||
optcmp(long_options[option_index].name, "nc")==0 ){
o.doCrypto(false);
} else if (optcmp(long_options[option_index].name, "safe-payloads")==0 ){
o.echoPayload(false);
} else if (optcmp(long_options[option_index].name, "include-payloads")==0 ){
o.echoPayload(true);
/* TIMING AND PERFORMANCE OPTIONS ********************************************/
/* Inter-packet delay */
} else if (optcmp(long_options[option_index].name, "delay") == 0 ){
if ( (l= tval2msecs(optarg)) == -1)
nping_fatal(QT_3,"Invalid delay supplied. Delay must be a valid, positive integer or floating point number.");
else if(l<0)
nping_fatal(QT_3,"Invalid delay supplied. Delays can never be negative.");
if (l >= 10 * 1000 && tval_unit(optarg) == NULL)
nping_fatal(QT_3,"Since April 2010, the default unit for --delay is seconds, so your time of \"%s\" is %g seconds. Use \"%sms\" for %g milliseconds.", optarg, l / 1000.0, optarg, l / 1000.0);
o.setDelay(l);
/* Tx rate */
} else if (optcmp(long_options[option_index].name, "rate") == 0 ){
if (parse_u32(optarg, &aux32)==OP_SUCCESS){
if(aux32==0){
nping_fatal(QT_3,"Invalid rate supplied. Rate can never be zero.");
}else{
/* Compute delay from rate: delay= 1000ms/rate*/
aux32 = 1000 / aux32;
o.setDelay(aux32);
}
}else{
nping_fatal(QT_3,"Invalid rate supplied. Rate must be a valid, positive integer");
}
/* MISC OPTIONS **************************************************************/
} else if (optcmp(long_options[option_index].name, "privileged") == 0 ){
o.setIsRoot();
} else if (optcmp(long_options[option_index].name, "unprivileged") == 0 ){
o.setIsRoot(0);
} else if (optcmp(long_options[option_index].name, "send-eth") == 0 ){
o.setSendPreference(PACKET_SEND_ETH_STRONG);
} else if (optcmp(long_options[option_index].name, "send-ip") == 0 ){
o.setSendPreference(PACKET_SEND_IP_STRONG);
} else if (optcmp(long_options[option_index].name, "bpf-filter") == 0 || optcmp(long_options[option_index].name, "filter") == 0){
o.setBPFFilterSpec( optarg );
if( o.issetDisablePacketCapture() && o.disablePacketCapture()==true )
nping_warning(QT_2, "Warning: There is no point on specifying a BPF filter if you disable packet capture. BPF filter will be ignored.");
} else if (optcmp(long_options[option_index].name, "nsock-engine") == 0){
if (nsock_set_default_engine(optarg) < 0)
nping_fatal(QT_3, "Unknown or non-available engine: %s", optarg);
/* Output Options */
} else if (optcmp(long_options[option_index].name, "quiet") == 0 ){
o.setVerbosity(-4);
o.setDebugging(0);
}else if (optcmp(long_options[option_index].name, "debug") == 0 ){
o.setVerbosity(4);
o.setDebugging(9);
}
/* Copy and paste these to add more options. */
//}else if (optcmp(long_options[option_index].name, "") == 0 ){
//} else if (optcmp(long_options[option_index].name, "") == 0 ){
break; /* case 0 */
/* OPTIONS THAT CAN BE SPECIFIED AS A SINGLE CHARACTER ***********************/
case '4': /* IPv4 */
o.setIPVersion(IP_VERSION_4);
break; /* case '4': */
case '6': /* IPv6 */
o.setIPVersion(IP_VERSION_6);
break; /* case '6': */
case 'f': /* Fragment packets */
if( o.issetMTU() == true ){
nping_warning(QT_3,"WARNING: -f is irrelevant if an MTU has been previously specified");
}
else{
nping_print(DBG_1, "Setting default MTU=%d", DEFAULT_MTU_FOR_FRAGMENTATION);
o.setMTU( DEFAULT_MTU_FOR_FRAGMENTATION );
}
break;
case 'g': /* Source port */
if( o.issetSourcePort() ){
nping_fatal(QT_3,"Cannot specify source port twice.");
}else if ( parse_u16(optarg, &aux16) == OP_SUCCESS ){
o.setSourcePort(aux16);
if(aux16==0)
nping_warning(QT_1, "WARNING: a source port of zero may not work on all systems.");