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/***************************************************************************
* nmap.cc -- Currently handles some of Nmap's port scanning features as *
* well as the command line user interface. Note that the actual main() *
* function is in main.cc *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
* *
* The Nmap Security Scanner is (C) 1996-2017 Insecure.Com LLC ("The Nmap *
* Project"). Nmap is also a registered trademark of the Nmap Project. *
* 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 [email protected]). *
* 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, the Nmap Project 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. *
* *
* The Nmap Project has permission to redistribute Npcap, a packet *
* capturing driver and library for the Microsoft Windows platform. *
* Npcap is a separate work with it's own license rather than this Nmap *
* license. Since the Npcap license does not permit redistribution *
* without special permission, our Nmap Windows binary packages which *
* contain Npcap may not be redistributed without special permission. *
* *
* 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 [email protected] 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 [email protected] 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 [email protected] 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 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) *
* *
***************************************************************************/
/* $Id$ */
#include "nmap.h"
#include "osscan.h"
#include "scan_engine.h"
#include "FPEngine.h"
#include "idle_scan.h"
#include "NmapOps.h"
#include "MACLookup.h"
#include "traceroute.h"
#include "nmap_tty.h"
#include "nmap_ftp.h"
#include "services.h"
#include "targets.h"
#include "tcpip.h"
#include "NewTargets.h"
#include "Target.h"
#include "service_scan.h"
#include "charpool.h"
#include "nmap_error.h"
#include "utils.h"
#include "xml.h"
#include "scan_lists.h"
#ifndef NOLUA
#include "nse_main.h"
#endif
#ifdef HAVE_SIGNAL
#include <signal.h>
#endif
#include <fcntl.h>
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef WIN32
#include "winfix.h"
/* This name collides in the following include. */
#undef PS_NONE
#include <shlobj.h>
#endif
#ifndef IPPROTO_SCTP
#include "libnetutil/netutil.h"
#endif
#if HAVE_OPENSSL
#include <openssl/opensslv.h>
#endif
#if HAVE_LIBSSH2
#include <libssh2.h>
#endif
#if HAVE_LIBZ
#include <zlib.h>
#endif
/* To get the version number only. */
#ifdef WIN32
#include "libdnet-stripped/include/dnet_winconfig.h"
#else
#include "libdnet-stripped/include/config.h"
#endif
#define DNET_VERSION VERSION
#include <string>
#include <sstream>
#include <vector>
/* global options */
extern char *optarg;
extern int optind;
extern NmapOps o; /* option structure */
static void display_nmap_version();
/* A mechanism to save argv[0] for code that requires that. */
static const char *program_name = NULL;
void set_program_name(const char *name) {
program_name = name;
}
static const char *get_program_name(void) {
return program_name;
}
/* parse the --scanflags argument. It can be a number >=0 or a string consisting of TCP flag names like "URGPSHFIN". Returns -1 if the argument is invalid. */
static int parse_scanflags(char *arg) {
int flagval = 0;
char *end = NULL;
if (isdigit((int) (unsigned char) arg[0])) {
flagval = strtol(arg, &end, 0);
if (*end || flagval < 0 || flagval > 255)
return -1;
} else {
if (strcasestr(arg, "FIN"))
flagval |= TH_FIN;
if (strcasestr(arg, "SYN"))
flagval |= TH_SYN;
if (strcasestr(arg, "RST") || strcasestr(arg, "RESET"))
flagval |= TH_RST;
if (strcasestr(arg, "PSH") || strcasestr(arg, "PUSH"))
flagval |= TH_PUSH;
if (strcasestr(arg, "ACK"))
flagval |= TH_ACK;
if (strcasestr(arg, "URG"))
flagval |= TH_URG;
if (strcasestr(arg, "ECE"))
flagval |= TH_ECE;
if (strcasestr(arg, "CWR"))
flagval |= TH_CWR;
if (strcasestr(arg, "ALL"))
flagval = 255;
if (strcasestr(arg, "NONE"))
flagval = 0;
}
return flagval;
}
static void printusage() {
printf("%s %s ( %s )\n"
"Usage: nmap [Scan Type(s)] [Options] {target specification}\n"
"TARGET SPECIFICATION:\n"
" Can pass hostnames, IP addresses, networks, etc.\n"
" Ex: scanme.nmap.org, microsoft.com/24, 192.168.0.1; 10.0.0-255.1-254\n"
" -iL <inputfilename>: Input from list of hosts/networks\n"
" -iR <num hosts>: Choose random targets\n"
" --exclude <host1[,host2][,host3],...>: Exclude hosts/networks\n"
" --excludefile <exclude_file>: Exclude list from file\n"
"HOST DISCOVERY:\n"
" -sL: List Scan - simply list targets to scan\n"
" -sn: Ping Scan - disable port scan\n"
" -Pn: Treat all hosts as online -- skip host discovery\n"
" -PS/PA/PU/PY[portlist]: TCP SYN/ACK, UDP or SCTP discovery to given ports\n"
" -PE/PP/PM: ICMP echo, timestamp, and netmask request discovery probes\n"
" -PO[protocol list]: IP Protocol Ping\n"
" -n/-R: Never do DNS resolution/Always resolve [default: sometimes]\n"
" --dns-servers <serv1[,serv2],...>: Specify custom DNS servers\n"
" --system-dns: Use OS's DNS resolver\n"
" --traceroute: Trace hop path to each host\n"
"SCAN TECHNIQUES:\n"
" -sS/sT/sA/sW/sM: TCP SYN/Connect()/ACK/Window/Maimon scans\n"
" -sU: UDP Scan\n"
" -sN/sF/sX: TCP Null, FIN, and Xmas scans\n"
" --scanflags <flags>: Customize TCP scan flags\n"
" -sI <zombie host[:probeport]>: Idle scan\n"
" -sY/sZ: SCTP INIT/COOKIE-ECHO scans\n"
" -sO: IP protocol scan\n"
" -b <FTP relay host>: FTP bounce scan\n"
"PORT SPECIFICATION AND SCAN ORDER:\n"
" -p <port ranges>: Only scan specified ports\n"
" Ex: -p22; -p1-65535; -p U:53,111,137,T:21-25,80,139,8080,S:9\n"
" --exclude-ports <port ranges>: Exclude the specified ports from scanning\n"
" -F: Fast mode - Scan fewer ports than the default scan\n"
" -r: Scan ports consecutively - don't randomize\n"
" --top-ports <number>: Scan <number> most common ports\n"
" --port-ratio <ratio>: Scan ports more common than <ratio>\n"
"SERVICE/VERSION DETECTION:\n"
" -sV: Probe open ports to determine service/version info\n"
" --version-intensity <level>: Set from 0 (light) to 9 (try all probes)\n"
" --version-light: Limit to most likely probes (intensity 2)\n"
" --version-all: Try every single probe (intensity 9)\n"
" --version-trace: Show detailed version scan activity (for debugging)\n"
#ifndef NOLUA
"SCRIPT SCAN:\n"
" -sC: equivalent to --script=default\n"
" --script=<Lua scripts>: <Lua scripts> is a comma separated list of\n"
" directories, script-files or script-categories\n"
" --script-args=<n1=v1,[n2=v2,...]>: provide arguments to scripts\n"
" --script-args-file=filename: provide NSE script args in a file\n"
" --script-trace: Show all data sent and received\n"
" --script-updatedb: Update the script database.\n"
" --script-help=<Lua scripts>: Show help about scripts.\n"
" <Lua scripts> is a comma-separated list of script-files or\n"
" script-categories.\n"
#endif
"OS DETECTION:\n"
" -O: Enable OS detection\n"
" --osscan-limit: Limit OS detection to promising targets\n"
" --osscan-guess: Guess OS more aggressively\n"
"TIMING AND PERFORMANCE:\n"
" Options which take <time> are in seconds, or append 'ms' (milliseconds),\n"
" 's' (seconds), 'm' (minutes), or 'h' (hours) to the value (e.g. 30m).\n"
" -T<0-5>: Set timing template (higher is faster)\n"
" --min-hostgroup/max-hostgroup <size>: Parallel host scan group sizes\n"
" --min-parallelism/max-parallelism <numprobes>: Probe parallelization\n"
" --min-rtt-timeout/max-rtt-timeout/initial-rtt-timeout <time>: Specifies\n"
" probe round trip time.\n"
" --max-retries <tries>: Caps number of port scan probe retransmissions.\n"
" --host-timeout <time>: Give up on target after this long\n"
" --scan-delay/--max-scan-delay <time>: Adjust delay between probes\n"
" --min-rate <number>: Send packets no slower than <number> per second\n"
" --max-rate <number>: Send packets no faster than <number> per second\n"
"FIREWALL/IDS EVASION AND SPOOFING:\n"
" -f; --mtu <val>: fragment packets (optionally w/given MTU)\n"
" -D <decoy1,decoy2[,ME],...>: Cloak a scan with decoys\n"
" -S <IP_Address>: Spoof source address\n"
" -e <iface>: Use specified interface\n"
" -g/--source-port <portnum>: Use given port number\n"
" --proxies <url1,[url2],...>: Relay connections through HTTP/SOCKS4 proxies\n"
" --data <hex string>: Append a custom payload to sent packets\n"
" --data-string <string>: Append a custom ASCII string to sent packets\n"
" --data-length <num>: Append random data to sent packets\n"
" --ip-options <options>: Send packets with specified ip options\n"
" --ttl <val>: Set IP time-to-live field\n"
" --spoof-mac <mac address/prefix/vendor name>: Spoof your MAC address\n"
" --badsum: Send packets with a bogus TCP/UDP/SCTP checksum\n"
"OUTPUT:\n"
" -oN/-oX/-oS/-oG <file>: Output scan in normal, XML, s|<rIpt kIddi3,\n"
" and Grepable format, respectively, to the given filename.\n"
" -oA <basename>: Output in the three major formats at once\n"
" -v: Increase verbosity level (use -vv or more for greater effect)\n"
" -d: Increase debugging level (use -dd or more for greater effect)\n"
" --reason: Display the reason a port is in a particular state\n"
" --open: Only show open (or possibly open) ports\n"
" --packet-trace: Show all packets sent and received\n"
" --iflist: Print host interfaces and routes (for debugging)\n"
" --append-output: Append to rather than clobber specified output files\n"
" --resume <filename>: Resume an aborted scan\n"
" --stylesheet <path/URL>: XSL stylesheet to transform XML output to HTML\n"
" --webxml: Reference stylesheet from Nmap.Org for more portable XML\n"
" --no-stylesheet: Prevent associating of XSL stylesheet w/XML output\n"
"MISC:\n"
" -6: Enable IPv6 scanning\n"
" -A: Enable OS detection, version detection, script scanning, and traceroute\n"
" --datadir <dirname>: Specify custom Nmap data file location\n"
" --send-eth/--send-ip: Send using raw ethernet frames or IP packets\n"
" --privileged: Assume that the user is fully privileged\n"
" --unprivileged: Assume the user lacks raw socket privileges\n"
" -V: Print version number\n"
" -h: Print this help summary page.\n"
"EXAMPLES:\n"
" nmap -v -A scanme.nmap.org\n"
" nmap -v -sn 192.168.0.0/16 10.0.0.0/8\n"
" nmap -v -iR 10000 -Pn -p 80\n"
"SEE THE MAN PAGE (https://nmap.org/book/man.html) FOR MORE OPTIONS AND EXAMPLES\n", NMAP_NAME, NMAP_VERSION, NMAP_URL);
}
#ifdef WIN32
static void check_setugid(void) {
}
#else
/* Show a warning when running setuid or setgid, as this allows code execution
(for example NSE scripts) as the owner/group. */
static void check_setugid(void) {
if (getuid() != geteuid())
error("WARNING: Running Nmap setuid, as you are doing, is a major security risk.\n");
if (getgid() != getegid())
error("WARNING: Running Nmap setgid, as you are doing, is a major security risk.\n");
}
#endif
static void insert_port_into_merge_list(unsigned short *mlist,
int *merged_port_count,
unsigned short p) {
int i;
// make sure the port isn't already in the list
for (i = 0; i < *merged_port_count; i++) {
if (mlist[i] == p) {
return;
}
}
mlist[*merged_port_count] = p;
(*merged_port_count)++;
}
static unsigned short *merge_port_lists(unsigned short *port_list1, int count1,
unsigned short *port_list2, int count2,
int *merged_port_count) {
int i;
unsigned short *merged_port_list = NULL;
*merged_port_count = 0;
merged_port_list =
(unsigned short *) safe_zalloc((count1 + count2) * sizeof(unsigned short));
for (i = 0; i < count1; i++) {
insert_port_into_merge_list(merged_port_list,
merged_port_count,
port_list1[i]);
}
for (i = 0; i < count2; i++) {
insert_port_into_merge_list(merged_port_list,
merged_port_count,
port_list2[i]);
}
// if there were duplicate ports then we can save some memory
if (*merged_port_count < (count1 + count2)) {
merged_port_list = (unsigned short*)
safe_realloc(merged_port_list,
(*merged_port_count) * sizeof(unsigned short));
}
return merged_port_list;
}
void validate_scan_lists(scan_lists &ports, NmapOps &o) {
if (o.pingtype == PINGTYPE_UNKNOWN) {
if (o.isr00t) {
if (o.pf() == PF_INET) {
o.pingtype = DEFAULT_IPV4_PING_TYPES;
} else {
o.pingtype = DEFAULT_IPV6_PING_TYPES;
}
getpts_simple(DEFAULT_PING_ACK_PORT_SPEC, SCAN_TCP_PORT,
&ports.ack_ping_ports, &ports.ack_ping_count);
getpts_simple(DEFAULT_PING_SYN_PORT_SPEC, SCAN_TCP_PORT,
&ports.syn_ping_ports, &ports.syn_ping_count);
} else {
o.pingtype = PINGTYPE_TCP; // if nonr00t
getpts_simple(DEFAULT_PING_CONNECT_PORT_SPEC, SCAN_TCP_PORT,
&ports.syn_ping_ports, &ports.syn_ping_count);
}
}
if ((o.pingtype & PINGTYPE_TCP) && (!o.isr00t)) {
// We will have to do a connect() style ping
// Pretend we wanted SYN probes all along.
if (ports.ack_ping_count > 0) {
// Combine the ACK and SYN ping port lists since they both reduce to
// SYN probes in this case
unsigned short *merged_port_list;
int merged_port_count;
merged_port_list = merge_port_lists(
ports.syn_ping_ports, ports.syn_ping_count,
ports.ack_ping_ports, ports.ack_ping_count,
&merged_port_count);
// clean up a bit
free(ports.syn_ping_ports);
free(ports.ack_ping_ports);
ports.syn_ping_count = merged_port_count;
ports.syn_ping_ports = merged_port_list;
ports.ack_ping_count = 0;
ports.ack_ping_ports = NULL;
}
o.pingtype &= ~PINGTYPE_TCP_USE_ACK;
o.pingtype |= PINGTYPE_TCP_USE_SYN;
}
#ifndef WIN32 /* Win32 has perfectly fine ICMP socket support */
if (!o.isr00t) {
if (o.pingtype & (PINGTYPE_ICMP_PING | PINGTYPE_ICMP_MASK | PINGTYPE_ICMP_TS)) {
error("Warning: You are not root -- using TCP pingscan rather than ICMP");
o.pingtype = PINGTYPE_TCP;
if (ports.syn_ping_count == 0) {
getpts_simple(DEFAULT_TCP_PROBE_PORT_SPEC, SCAN_TCP_PORT, &ports.syn_ping_ports, &ports.syn_ping_count);
assert(ports.syn_ping_count > 0);
}
}
}
#endif
}
struct ftpinfo ftp = get_default_ftpinfo();
/* A list of targets to be displayed by the --route-dst debugging option. */
static std::vector<std::string> route_dst_hosts;
struct scan_lists ports = { 0 };
/* This struct is used is a temporary storage place that holds options that
can't be correctly parsed and interpreted before the entire command line has
been read. Examples are -6 and -S. Trying to set the source address without
knowing the address family first could result in a failure if you pass an
IPv6 address and the address family is still IPv4. */
static struct delayed_options {
public:
delayed_options() {
this->pre_max_parallelism = -1;
this->pre_scan_delay = -1;
this->pre_max_scan_delay = -1;
this->pre_init_rtt_timeout = -1;
this->pre_min_rtt_timeout = -1;
this->pre_max_rtt_timeout = -1;
this->pre_max_retries = -1;
this->pre_host_timeout = -1;
#ifndef NOLUA
this->pre_scripttimeout = -1;
#endif
this->iflist = false;
this->advanced = false;
this->af = AF_UNSPEC;
this->decoys = false;
}
// Pre-specified timing parameters.
// These are stored here during the parsing of the arguments so that we can
// set the defaults specified by any timing template options (-T2, etc) BEFORE
// any of these. In other words, these always take precedence over the templates.
int pre_max_parallelism, pre_scan_delay, pre_max_scan_delay;
int pre_init_rtt_timeout, pre_min_rtt_timeout, pre_max_rtt_timeout;
int pre_max_retries;
long pre_host_timeout;
#ifndef NOLUA
double pre_scripttimeout;
#endif
char *machinefilename, *kiddiefilename, *normalfilename, *xmlfilename;
bool iflist, decoys, advanced;
char *exclude_spec, *exclude_file;
char *spoofSource, *decoy_arguments;
const char *spoofmac;
int af;
std::vector<std::string> verbose_out;
void warn_deprecated (const char *given, const char *replacement) {
std::ostringstream os;
os << "Warning: The -" << given << " option is deprecated. Please use -" << replacement;
this->verbose_out.push_back(os.str());
}
} delayed_options;
struct tm *local_time;
static void test_file_name(const char *filename, const char *option) {
if (filename[0] == '-' && filename[1] != '\0') {
fatal("Output filename begins with '-'. Try '-%s ./%s' if you really want it to be named as such.", option, filename);
} else if (strcmp(option, "o") == 0 && strchr("NAXGS", filename[0])) {
fatal("You are using a deprecated option in a dangerous way. Did you mean: -o%c %s", filename[0], filename + 1);
} else if (filename[0] == '-' && strcmp(option,"oA") == 0) {
fatal("Cannot display multiple output types to stdout.");
}
}
void parse_options(int argc, char **argv) {
char *p;
int arg;
long l;
double d;
char *endptr = NULL;
char errstr[256];
int option_index;
struct option long_options[] = {
{"version", no_argument, 0, 'V'},
{"verbose", no_argument, 0, 'v'},
{"datadir", required_argument, 0, 0},
{"servicedb", required_argument, 0, 0},
{"versiondb", required_argument, 0, 0},
{"debug", optional_argument, 0, 'd'},
{"help", no_argument, 0, 'h'},
{"iflist", no_argument, 0, 0},
{"release_memory", no_argument, 0, 0},
{"release-memory", no_argument, 0, 0},
{"nogcc", no_argument, 0, 0},
{"max_os_tries", required_argument, 0, 0},
{"max-os-tries", required_argument, 0, 0},
{"max_parallelism", required_argument, 0, 'M'},
{"max-parallelism", required_argument, 0, 'M'},
{"min_parallelism", required_argument, 0, 0},
{"min-parallelism", required_argument, 0, 0},
{"timing", required_argument, 0, 'T'},
{"max_rtt_timeout", required_argument, 0, 0},
{"max-rtt-timeout", required_argument, 0, 0},
{"min_rtt_timeout", required_argument, 0, 0},
{"min-rtt-timeout", required_argument, 0, 0},
{"initial_rtt_timeout", required_argument, 0, 0},
{"initial-rtt-timeout", required_argument, 0, 0},
{"excludefile", required_argument, 0, 0},
{"exclude", required_argument, 0, 0},
{"max_hostgroup", required_argument, 0, 0},
{"max-hostgroup", required_argument, 0, 0},
{"min_hostgroup", required_argument, 0, 0},
{"min-hostgroup", required_argument, 0, 0},
{"open", no_argument, 0, 0},
{"scanflags", required_argument, 0, 0},
{"defeat_rst_ratelimit", no_argument, 0, 0},
{"defeat-rst-ratelimit", no_argument, 0, 0},
{"defeat_icmp_ratelimit", no_argument, 0, 0},
{"defeat-icmp-ratelimit", no_argument, 0, 0},
{"host_timeout", required_argument, 0, 0},
{"host-timeout", required_argument, 0, 0},
{"scan_delay", required_argument, 0, 0},
{"scan-delay", required_argument, 0, 0},
{"max_scan_delay", required_argument, 0, 0},
{"max-scan-delay", required_argument, 0, 0},
{"max_retries", required_argument, 0, 0},
{"max-retries", required_argument, 0, 0},
{"oA", required_argument, 0, 0},
{"oN", required_argument, 0, 0},
{"oM", required_argument, 0, 0},
{"oG", required_argument, 0, 0},
{"oS", required_argument, 0, 0},
{"oH", required_argument, 0, 0},
{"oX", required_argument, 0, 0},
{"iL", required_argument, 0, 0},
{"iR", required_argument, 0, 0},
{"sI", required_argument, 0, 0},
{"source_port", required_argument, 0, 'g'},
{"source-port", required_argument, 0, 'g'},
{"randomize_hosts", no_argument, 0, 0},
{"randomize-hosts", no_argument, 0, 0},
{"nsock_engine", required_argument, 0, 0},
{"nsock-engine", required_argument, 0, 0},
{"proxies", required_argument, 0, 0},
{"proxy", required_argument, 0, 0},
{"osscan_limit", no_argument, 0, 0}, /* skip OSScan if no open ports */
{"osscan-limit", no_argument, 0, 0}, /* skip OSScan if no open ports */
{"osscan_guess", no_argument, 0, 0}, /* More guessing flexibility */
{"osscan-guess", no_argument, 0, 0}, /* More guessing flexibility */
{"fuzzy", no_argument, 0, 0}, /* Alias for osscan_guess */
{"packet_trace", no_argument, 0, 0}, /* Display all packets sent/rcv */
{"packet-trace", no_argument, 0, 0}, /* Display all packets sent/rcv */
{"version_trace", no_argument, 0, 0}, /* Display -sV related activity */
{"version-trace", no_argument, 0, 0}, /* Display -sV related activity */
{"data", required_argument, 0, 0},
{"data_string", required_argument, 0, 0},
{"data-string", required_argument, 0, 0},
{"data_length", required_argument, 0, 0},
{"data-length", required_argument, 0, 0},
{"send_eth", no_argument, 0, 0},
{"send-eth", no_argument, 0, 0},
{"send_ip", no_argument, 0, 0},
{"send-ip", no_argument, 0, 0},
{"stylesheet", required_argument, 0, 0},
{"no_stylesheet", no_argument, 0, 0},
{"no-stylesheet", no_argument, 0, 0},
{"webxml", no_argument, 0, 0},
{"rH", no_argument, 0, 0},
{"vv", no_argument, 0, 0},
{"ff", no_argument, 0, 0},
{"privileged", no_argument, 0, 0},
{"unprivileged", no_argument, 0, 0},
{"mtu", required_argument, 0, 0},
{"append_output", no_argument, 0, 0},
{"append-output", no_argument, 0, 0},
{"noninteractive", no_argument, 0, 0},
{"spoof_mac", required_argument, 0, 0},
{"spoof-mac", required_argument, 0, 0},
{"thc", no_argument, 0, 0},
{"badsum", no_argument, 0, 0},
{"ttl", required_argument, 0, 0}, /* Time to live */
{"traceroute", no_argument, 0, 0},
{"reason", no_argument, 0, 0},
{"allports", no_argument, 0, 0},
{"version_intensity", required_argument, 0, 0},
{"version-intensity", required_argument, 0, 0},
{"version_light", no_argument, 0, 0},
{"version-light", no_argument, 0, 0},
{"version_all", no_argument, 0, 0},
{"version-all", no_argument, 0, 0},
{"system_dns", no_argument, 0, 0},
{"system-dns", no_argument, 0, 0},
{"log_errors", no_argument, 0, 0},
{"log-errors", no_argument, 0, 0},
{"deprecated_xml_osclass", no_argument, 0, 0},
{"deprecated-xml-osclass", no_argument, 0, 0},
{"dns_servers", required_argument, 0, 0},
{"dns-servers", required_argument, 0, 0},
{"port-ratio", required_argument, 0, 0},
{"port_ratio", required_argument, 0, 0},
{"exclude-ports", required_argument, 0, 0},
{"exclude_ports", required_argument, 0, 0},
{"top-ports", required_argument, 0, 0},
{"top_ports", required_argument, 0, 0},
#ifndef NOLUA
{"script", required_argument, 0, 0},
{"script-trace", no_argument, 0, 0},
{"script_trace", no_argument, 0, 0},
{"script-updatedb", no_argument, 0, 0},
{"script_updatedb", no_argument, 0, 0},
{"script-args", required_argument, 0, 0},
{"script_args", required_argument, 0, 0},
{"script-args-file", required_argument, 0, 0},
{"script_args_file", required_argument, 0, 0},
{"script-help", required_argument, 0, 0},
{"script_help", required_argument, 0, 0},
{"script-timeout", required_argument, 0, 0},
{"script_timeout", required_argument, 0, 0},
#endif
{"ip_options", required_argument, 0, 0},
{"ip-options", required_argument, 0, 0},
{"min_rate", required_argument, 0, 0},
{"min-rate", required_argument, 0, 0},
{"max_rate", required_argument, 0, 0},
{"max-rate", required_argument, 0, 0},
{"adler32", no_argument, 0, 0},
{"stats_every", required_argument, 0, 0},
{"stats-every", required_argument, 0, 0},
{"disable_arp_ping", no_argument, 0, 0},
{"disable-arp-ping", no_argument, 0, 0},
{"route_dst", required_argument, 0, 0},
{"route-dst", required_argument, 0, 0},
{"resume", required_argument, 0, 0},
{0, 0, 0, 0}
};
/* OK, lets parse these args! */
optind = 1; /* so it can be called multiple times */
while ((arg = getopt_long_only(argc, argv, "46Ab:D:d::e:Ffg:hIi:M:m:nO::o:P:p:qRrS:s:T:Vv::", long_options, &option_index)) != EOF) {
switch (arg) {
case 0:
#ifndef NOLUA
if (strcmp(long_options[option_index].name, "script") == 0) {
o.script = 1;
o.chooseScripts(optarg);
} else if (optcmp(long_options[option_index].name, "script-args") == 0) {
o.scriptargs = strdup(optarg);
} else if (optcmp(long_options[option_index].name, "script-args-file") == 0) {
o.scriptargsfile = strdup(optarg);
} else if (optcmp(long_options[option_index].name, "script-trace") == 0) {
o.scripttrace = 1;
} else if (optcmp(long_options[option_index].name, "script-updatedb") == 0) {
o.scriptupdatedb = 1;
} else if (optcmp(long_options[option_index].name, "script-help") == 0) {
o.scripthelp = true;
o.chooseScripts(optarg);
} else if (optcmp(long_options[option_index].name, "script-timeout") == 0) {
d = tval2secs(optarg);
if (d < 0 || d > LONG_MAX)
fatal("Bogus --script-timeout argument specified");
delayed_options.pre_scripttimeout = d;
} else
#endif
if (optcmp(long_options[option_index].name, "max-os-tries") == 0) {
l = atoi(optarg);
if (l < 1 || l > 50)
fatal("Bogus --max-os-tries argument specified, must be between 1 and 50 (inclusive)");
o.setMaxOSTries(l);
} else if (optcmp(long_options[option_index].name, "max-rtt-timeout") == 0) {
l = tval2msecs(optarg);
if (l < 5)
fatal("Bogus --max-rtt-timeout argument specified, must be at least 5ms");
if (l >= 50 * 1000 && tval_unit(optarg) == NULL)
fatal("Since April 2010, the default unit for --max-rtt-timeout is seconds, so your time of \"%s\" is %g seconds. Use \"%sms\" for %g milliseconds.", optarg, l / 1000.0, optarg, l / 1000.0);
if (l < 20)
error("WARNING: You specified a round-trip time timeout (%ld ms) that is EXTRAORDINARILY SMALL. Accuracy may suffer.", l);
delayed_options.pre_max_rtt_timeout = l;
} else if (optcmp(long_options[option_index].name, "min-rtt-timeout") == 0) {
l = tval2msecs(optarg);
if (l < 0)
fatal("Bogus --min-rtt-timeout argument specified");
if (l >= 50 * 1000 && tval_unit(optarg) == NULL)
fatal("Since April 2010, the default unit for --min-rtt-timeout is seconds, so your time of \"%s\" is %g seconds. Use \"%sms\" for %g milliseconds.", optarg, l / 1000.0, optarg, l / 1000.0);
delayed_options.pre_min_rtt_timeout = l;
} else if (optcmp(long_options[option_index].name, "initial-rtt-timeout") == 0) {
l = tval2msecs(optarg);
if (l <= 0)
fatal("Bogus --initial-rtt-timeout argument specified. Must be positive");
if (l >= 50 * 1000 && tval_unit(optarg) == NULL)
fatal("Since April 2010, the default unit for --initial-rtt-timeout is seconds, so your time of \"%s\" is %g seconds. Use \"%sms\" for %g milliseconds.", optarg, l / 1000.0, optarg, l / 1000.0);
delayed_options.pre_init_rtt_timeout = l;
} else if (strcmp(long_options[option_index].name, "excludefile") == 0) {
delayed_options.exclude_file = strdup(optarg);
} else if (strcmp(long_options[option_index].name, "exclude") == 0) {
delayed_options.exclude_spec = strdup(optarg);
} else if (optcmp(long_options[option_index].name, "max-hostgroup") == 0) {
o.setMaxHostGroupSz(atoi(optarg));
} else if (optcmp(long_options[option_index].name, "min-hostgroup") == 0) {
o.setMinHostGroupSz(atoi(optarg));
if (atoi(optarg) > 100)
error("Warning: You specified a highly aggressive --min-hostgroup.");
} else if (strcmp(long_options[option_index].name, "open") == 0) {
o.setOpenOnly(true);
// If they only want open, don't spend extra time (potentially) distinguishing closed from filtered.
o.defeat_rst_ratelimit = 1;
} else if (strcmp(long_options[option_index].name, "scanflags") == 0) {
o.scanflags = parse_scanflags(optarg);
if (o.scanflags < 0) {
fatal("--scanflags option must be a number between 0 and 255 (inclusive) or a string like \"URGPSHFIN\".");
}
} else if (strcmp(long_options[option_index].name, "iflist") == 0) {
delayed_options.iflist = true;
} else if (strcmp(long_options[option_index].name, "nogcc") == 0) {
o.nogcc = 1;
} else if (optcmp(long_options[option_index].name, "release-memory") == 0) {
o.release_memory = true;
} else if (optcmp(long_options[option_index].name, "min-parallelism") == 0) {
o.min_parallelism = atoi(optarg);
if (o.min_parallelism < 1)
fatal("Argument to --min-parallelism must be at least 1!");
if (o.min_parallelism > 100) {
error("Warning: Your --min-parallelism option is pretty high! This can hurt reliability.");
}
} else if (optcmp(long_options[option_index].name, "host-timeout") == 0) {
l = tval2msecs(optarg);
if (l <= 0)
fatal("Bogus --host-timeout argument specified");
if (l >= 10000 * 1000 && tval_unit(optarg) == NULL)
fatal("Since April 2010, the default unit for --host-timeout is seconds, so your time of \"%s\" is %.1f hours. If this is what you want, use \"%ss\".", optarg, l / 1000.0 / 60 / 60, optarg);
delayed_options.pre_host_timeout = l;
} else if (strcmp(long_options[option_index].name, "ttl") == 0) {
o.ttl = atoi(optarg);
if (o.ttl < 0 || o.ttl > 255) {
fatal("ttl option must be a number between 0 and 255 (inclusive)");
}
} else if (strcmp(long_options[option_index].name, "datadir") == 0) {
o.datadir = strdup(optarg);
} else if (strcmp(long_options[option_index].name, "servicedb") == 0) {
o.requested_data_files["nmap-services"] = optarg;
o.fastscan++;
} else if (strcmp(long_options[option_index].name, "versiondb") == 0) {
o.requested_data_files["nmap-service-probes"] = optarg;
} else if (optcmp(long_options[option_index].name, "append-output") == 0) {
o.append_output = 1;
} else if (strcmp(long_options[option_index].name, "noninteractive") == 0) {
o.noninteractive = true;
} else if (optcmp(long_options[option_index].name, "spoof-mac") == 0) {
/* I need to deal with this later, once I'm sure that I have output
files set up, --datadir, etc. */
delayed_options.spoofmac = optarg;
} else if (strcmp(long_options[option_index].name, "allports") == 0) {
o.override_excludeports = 1;
} else if (optcmp(long_options[option_index].name, "version-intensity") == 0) {
o.version_intensity = atoi(optarg);
if (o.version_intensity < 0 || o.version_intensity > 9)
fatal("version-intensity must be between 0 and 9");
} else if (optcmp(long_options[option_index].name, "version-light") == 0) {
o.version_intensity = 2;
} else if (optcmp(long_options[option_index].name, "version-all") == 0) {
o.version_intensity = 9;
} else if (optcmp(long_options[option_index].name, "scan-delay") == 0) {
l = tval2msecs(optarg);
if (l < 0)
fatal("Bogus --scan-delay argument specified.");
if (l >= 100 * 1000 && tval_unit(optarg) == NULL)
fatal("Since April 2010, the default unit for --scan-delay is seconds, so your time of \"%s\" is %.1f minutes. Use \"%sms\" for %g milliseconds.", optarg, l / 1000.0 / 60, optarg, l / 1000.0);
delayed_options.pre_scan_delay = l;
} else if (optcmp(long_options[option_index].name, "defeat-rst-ratelimit") == 0) {
o.defeat_rst_ratelimit = 1;
} else if (optcmp(long_options[option_index].name, "defeat-icmp-ratelimit") == 0) {
o.defeat_icmp_ratelimit = 1;
} else if (optcmp(long_options[option_index].name, "max-scan-delay") == 0) {
l = tval2msecs(optarg);
if (l < 0)
fatal("Bogus --max-scan-delay argument specified.");
if (l >= 100 * 1000 && tval_unit(optarg) == NULL)
fatal("Since April 2010, the default unit for --max-scan-delay is seconds, so your time of \"%s\" is %.1f minutes. If this is what you want, use \"%ss\".", optarg, l / 1000.0 / 60, optarg);
delayed_options.pre_max_scan_delay = l;
} else if (optcmp(long_options[option_index].name, "max-retries") == 0) {
delayed_options.pre_max_retries = atoi(optarg);
if (delayed_options.pre_max_retries < 0)
fatal("max-retries must be positive");
} else if (optcmp(long_options[option_index].name, "randomize-hosts") == 0
|| strcmp(long_options[option_index].name, "rH") == 0) {
o.randomize_hosts = 1;
o.ping_group_sz = PING_GROUP_SZ * 4;
} else if (optcmp(long_options[option_index].name, "nsock-engine") == 0) {
if (nsock_set_default_engine(optarg) < 0)
fatal("Unknown or non-available engine: %s", optarg);
} else if ((optcmp(long_options[option_index].name, "proxies") == 0) || (optcmp(long_options[option_index].name, "proxy") == 0)) {
if (nsock_proxychain_new(optarg, &o.proxy_chain, NULL) < 0)
fatal("Invalid proxy chain specification");
} else if (optcmp(long_options[option_index].name, "osscan-limit") == 0) {
o.osscan_limit = 1;
} else if (optcmp(long_options[option_index].name, "osscan-guess") == 0
|| strcmp(long_options[option_index].name, "fuzzy") == 0) {
o.osscan_guess = 1;
} else if (optcmp(long_options[option_index].name, "packet-trace") == 0) {
o.setPacketTrace(true);
#ifndef NOLUA
o.scripttrace = 1;
#endif
} else if (optcmp(long_options[option_index].name, "version-trace") == 0) {
o.setVersionTrace(true);
o.debugging++;
} else if (optcmp(long_options[option_index].name, "data") == 0) {
if (o.extra_payload)
fatal("Can't use the --data option(s) multiple times, or together.");
u8 *tempbuff=NULL;
size_t len=0;
if( (tempbuff=parse_hex_string(optarg, &len))==NULL)
fatal("Invalid hex string specified");
else {
o.extra_payload_length = len;
o.extra_payload = (char *) safe_malloc(o.extra_payload_length);
memcpy(o.extra_payload, tempbuff, len);
}
if (o.extra_payload_length > 1400) /* 1500 - IP with opts - TCP with opts. */
error("WARNING: Payloads bigger than 1400 bytes may not be sent successfully.");
} else if (optcmp(long_options[option_index].name, "data-string") == 0) {
if (o.extra_payload)
fatal("Can't use the --data option(s) multiple times, or together.");
o.extra_payload_length = strlen(optarg);
if (o.extra_payload_length < 0 || o.extra_payload_length > MAX_PAYLOAD_ALLOWED)
fatal("string length must be between 0 and %d", MAX_PAYLOAD_ALLOWED);
if (o.extra_payload_length > 1400) /* 1500 - IP with opts - TCP with opts. */
error("WARNING: Payloads bigger than 1400 bytes may not be sent successfully.");
o.extra_payload = strdup(optarg);
} else if (optcmp(long_options[option_index].name, "data-length") == 0) {
if (o.extra_payload)
fatal("Can't use the --data option(s) multiple times, or together.");
o.extra_payload_length = (int)strtol(optarg, NULL, 10);
if (o.extra_payload_length < 0 || o.extra_payload_length > MAX_PAYLOAD_ALLOWED)
fatal("data-length must be between 0 and %d", MAX_PAYLOAD_ALLOWED);
if (o.extra_payload_length > 1400) /* 1500 - IP with opts - TCP with opts. */
error("WARNING: Payloads bigger than 1400 bytes may not be sent successfully.");
o.extra_payload = (char *) safe_malloc(MAX(o.extra_payload_length, 1));
get_random_bytes(o.extra_payload, o.extra_payload_length);
} else if (optcmp(long_options[option_index].name, "send-eth") == 0) {
o.sendpref = PACKET_SEND_ETH_STRONG;
} else if (optcmp(long_options[option_index].name, "send-ip") == 0) {
o.sendpref = PACKET_SEND_IP_STRONG;
} else if (strcmp(long_options[option_index].name, "stylesheet") == 0) {
o.setXSLStyleSheet(optarg);
} else if (optcmp(long_options[option_index].name, "no-stylesheet") == 0) {
o.setXSLStyleSheet(NULL);
} else if (optcmp(long_options[option_index].name, "system-dns") == 0) {
o.mass_dns = false;
} else if (optcmp(long_options[option_index].name, "dns-servers") == 0) {
o.dns_servers = strdup(optarg);
} else if (optcmp(long_options[option_index].name, "log-errors") == 0) {
/*Nmap Log errors is deprecated and is now always enabled by default.
This option is left in so as to not break anybody's scanning scripts.
However it does nothing*/
} else if (optcmp(long_options[option_index].name, "deprecated-xml-osclass") == 0) {
o.deprecated_xml_osclass = true;
} else if (strcmp(long_options[option_index].name, "webxml") == 0) {
o.setXSLStyleSheet("https://svn.nmap.org/nmap/docs/nmap.xsl");
} else if (strcmp(long_options[option_index].name, "oN") == 0) {
test_file_name(optarg, long_options[option_index].name);
delayed_options.normalfilename = logfilename(optarg, local_time);
} else if (strcmp(long_options[option_index].name, "oG") == 0
|| strcmp(long_options[option_index].name, "oM") == 0) {
test_file_name(optarg, long_options[option_index].name);
delayed_options.machinefilename = logfilename(optarg, local_time);
if (long_options[option_index].name[1] == 'M')
delayed_options.warn_deprecated("oM", "oG");
} else if (strcmp(long_options[option_index].name, "oS") == 0) {
test_file_name(optarg, long_options[option_index].name);
delayed_options.kiddiefilename = logfilename(optarg, local_time);
} else if (strcmp(long_options[option_index].name, "oH") == 0) {
fatal("HTML output is not directly supported, though Nmap includes an XSL for transforming XML output into HTML. See the man page.");
} else if (strcmp(long_options[option_index].name, "oX") == 0) {
test_file_name(optarg, long_options[option_index].name);
delayed_options.xmlfilename = logfilename(optarg, local_time);
} else if (strcmp(long_options[option_index].name, "oA") == 0) {
char buf[MAXPATHLEN];
test_file_name(optarg, long_options[option_index].name);
Snprintf(buf, sizeof(buf), "%s.nmap", logfilename(optarg, local_time));
delayed_options.normalfilename = strdup(buf);
Snprintf(buf, sizeof(buf), "%s.gnmap", logfilename(optarg, local_time));
delayed_options.machinefilename = strdup(buf);
Snprintf(buf, sizeof(buf), "%s.xml", logfilename(optarg, local_time));
delayed_options.xmlfilename = strdup(buf);
} else if (strcmp(long_options[option_index].name, "thc") == 0) {
log_write(LOG_STDOUT, "!!Greets to Van Hauser, Plasmoid, Skyper and the rest of THC!!\n");
exit(0);
} else if (strcmp(long_options[option_index].name, "badsum") == 0) {
o.badsum = 1;
} else if (strcmp(long_options[option_index].name, "iL") == 0) {
if (o.inputfd) {
fatal("Only one input filename allowed");
}
if (!strcmp(optarg, "-")) {
o.inputfd = stdin;
} else {
o.inputfd = fopen(optarg, "r");
if (!o.inputfd) {
fatal("Failed to open input file %s for reading", optarg);
}
}
} else if (strcmp(long_options[option_index].name, "iR") == 0) {
o.generate_random_ips = 1;
o.max_ips_to_scan = strtoul(optarg, &endptr, 10);
if (*endptr != '\0') {
fatal("ERROR: -iR argument must be the maximum number of random IPs you wish to scan (use 0 for unlimited)");
}