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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) 1996-2009 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 COPYING.OpenSSL 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. *
* *
***************************************************************************/
/* $Id$ */
#include "nmap.h"
#include "osscan.h"
#include "osscan2.h"
#include "scan_engine.h"
#include "idle_scan.h"
#include "timing.h"
#include "NmapOps.h"
#include "MACLookup.h"
#include "traceroute.h"
#include "nmap_tty.h"
#include "nmap_dns.h"
#include "services.h"
#include "protocols.h"
#include "targets.h"
#include "TargetGroup.h"
#include "service_scan.h"
#include "charpool.h"
#include "nmap_error.h"
#include "utils.h"
#ifndef NOLUA
#include "nse_main.h"
#endif
#ifdef WIN32
#include "winfix.h"
#endif
using namespace std;
/* global options */
extern char *optarg;
extern int optind;
extern NmapOps o; /* option structure */
/* 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;
}
/* parse a URL stype ftp string of the form user:pass@server:portno */
static int parse_bounce_argument(struct ftpinfo *ftp, char *url) {
char *p = url,*q, *s;
if ((q = strrchr(url, '@'))) { /* we have user and/or pass */
*q++ = '\0';
if ((s = strchr(p, ':'))) { /* we have user AND pass */
*s++ = '\0';
strncpy(ftp->pass, s, 255);
} else { /* we ONLY have user */
log_write(LOG_STDOUT, "Assuming %s is a username, and using the default password: %s\n",
p, ftp->pass);
}
strncpy(ftp->user, p, 63);
} else {
q = url;
}
/* q points to beginning of server name */
if ((s = strchr(q, ':'))) { /* we have portno */
*s++ = '\0';
ftp->port = atoi(s);
}
strncpy(ftp->server_name, q, MAXHOSTNAMELEN);
ftp->user[63] = ftp->pass[255] = ftp->server_name[MAXHOSTNAMELEN] = 0;
return 1;
}
static void printusage(char *name, int rc) {
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"
" -sP: Ping Scan - go no further than determining if host is online\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\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-trace: Show all data sent and received\n"
" --script-updatedb: Update the script database.\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 milliseconds, unless you append 's'\n"
" (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 <time>: 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"
" --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"
" --adler32: Use deprecated Adler32 instead of CRC32C for SCTP checksums\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 twice or more for greater effect)\n"
" -d[level]: Set or increase debugging level (Up to 9 is meaningful)\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"
" --log-errors: Log errors/warnings to the normal-format output file\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: Enables OS detection and 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 -sP 192.168.0.0/16 10.0.0.0/8\n"
" nmap -v -iR 10000 -PN -p 80\n"
"SEE THE MAN PAGE (http://nmap.org/book/man.html) FOR MORE OPTIONS AND EXAMPLES\n", NMAP_NAME, NMAP_VERSION, NMAP_URL);
exit(rc);
}
/**
* Returns 1 if this is a reserved IP address, where "reserved" means
* either a private address, non-routable address, or even a non-reserved
* but unassigned address which has an extremely high probability of being
* black-holed.
*
* We try to optimize speed when ordering the tests. This optimization
* assumes that all byte values are equally likely in the input.
*
* Warning: This function could easily become outdated if the IANA
* starts to assign some more IPv4 ranges to RIPE, etc. as they have
* started doing this year (2001), for example 80.0.0.0/4 used to be
* completely unassigned until they gave 80.0.0.0/7 to RIPE in April
* 2001 (www.junk.org is an example of a new address in this range).
*
* Check <http://www.iana.org/assignments/ipv4-address-space> for
* the most recent assigments and
* <http://www.cymru.com/Documents/bogon-bn-nonagg.txt> for bogon
* netblocks.
*/
static int ip_is_reserved(struct in_addr *ip)
{
char *ipc = (char *) &(ip->s_addr);
unsigned char i1 = ipc[0], i2 = ipc[1], i3 = ipc[2]; /* i4 not currently used - , i4 = ipc[3]; */
/* do all the /7's and /8's with a big switch statement, hopefully the
* compiler will be able to optimize this a little better using a jump table
* or what have you
*/
switch (i1)
{
case 0: /* 000/8 is IANA reserved */
case 1: /* 001/8 is IANA reserved */
case 2: /* 002/8 is IANA reserved */
case 5: /* 005/8 is IANA reserved */
case 6: /* USA Army ISC */
case 7: /* used for BGP protocol */
case 10: /* the infamous 10.0.0.0/8 */
case 14: /* 014/8 is IANA reserved */
case 23: /* 023/8 is IANA reserved */
case 27: /* 027/8 is IANA reserved */
case 31: /* 031/8 is IANA reserved */
case 36: /* 036/8 is IANA reserved */
case 37: /* 037/8 is IANA reserved */
case 39: /* 039/8 is IANA reserved */
case 42: /* 042/8 is IANA reserved */
case 46: /* 046/8 is IANA reserved */
case 49: /* 049/8 is IANA reserved */
case 50: /* 050/8 is IANA reserved */
case 55: /* misc. U.S.A. Armed forces */
case 127: /* 127/8 is reserved for loopback */
case 179: /* 179/8 is IANA reserved */
case 181: /* 181/8 is IANA reserved */
case 185: /* 185/8 is IANA reserved */
case 223: /* 223/8 is IANA reserved */
return 1;
default:
break;
}
/* 100-107/8 is IANA reserved */
if (i1 >= 100 && i1 <= 107)
return 1;
/* 172.16.0.0/12 is reserved for private nets by RFC1819 */
if (i1 == 172 && i2 >= 16 && i2 <= 31)
return 1;
/* 176-177/8 is IANA reserved */
if (i1 >= 176 && i1 <= 177)
return 1;
/* 192.168.0.0/16 is reserved for private nets by RFC1819 */
/* 192.0.2.0/24 is reserved for documentation and examples */
/* 192.88.99.0/24 is used as 6to4 Relay anycast prefix by RFC3068 */
if (i1 == 192) {
if (i2 == 168)
return 1;
if (i2 == 0 && i3 == 2)
return 1;
if (i2 == 88 && i3 == 99)
return 1;
}
/* 198.18.0.0/15 is used for benchmark tests by RFC2544 */
if (i1 == 198 && i2 == 18 && i3 >= 1 && i3 <= 64) {
return 1;
}
/* reserved for DHCP clients seeking addresses, not routable outside LAN */
if (i1 == 169 && i2 == 254)
return 1;
/* 224-239/8 is all multicast stuff */
/* 240-255/8 is IANA reserved */
if (i1 >= 224)
return 1;
return 0;
}
static char *grab_next_host_spec(FILE *inputfd, int argc, char **fakeargv) {
static char host_spec[1024];
unsigned int host_spec_index;
int ch;
struct in_addr ip;
if (o.generate_random_ips) {
do {
ip.s_addr = get_random_u32();
} while (ip_is_reserved(&ip));
Strncpy(host_spec, inet_ntoa(ip), sizeof(host_spec));
} else if (!inputfd) {
return( (optind < argc)? fakeargv[optind++] : NULL);
} else {
host_spec_index = 0;
while((ch = getc(inputfd)) != EOF) {
if (ch == ' ' || ch == '\r' || ch == '\n' || ch == '\t' || ch == '\0') {
if (host_spec_index == 0) continue;
host_spec[host_spec_index] = '\0';
return host_spec;
} else if (host_spec_index < sizeof(host_spec) / sizeof(char) -1) {
host_spec[host_spec_index++] = (char) ch;
} else fatal("One of the host_specifications from your input file is too long (> %d chars)", (int) sizeof(host_spec));
}
host_spec[host_spec_index] = '\0';
}
if (!*host_spec) return NULL;
return host_spec;
}
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 && o.pf() == PF_INET) {
o.pingtype = DEFAULT_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 or IPv6
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 || o.pf() != PF_INET)) {
// 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
}
int nmap_main(int argc, char *argv[]) {
char *p, *q;
int i, arg;
long l;
unsigned int targetno;
FILE *inputfd = NULL, *excludefd = NULL;
char *host_spec = NULL, *exclude_spec = NULL;
short randomize=1;
short quashargv = 0;
char **host_exp_group;
char *idleProxy = NULL; /* The idle host used to "Proxy" an idle scan */
int num_host_exp_groups;
char *machinefilename = NULL, *kiddiefilename = NULL,
*normalfilename = NULL, *xmlfilename = NULL;
time_t now;
struct tm *tm;
HostGroupState *hstate = NULL;
char *endptr = NULL;
struct scan_lists ports = { 0 };
TargetGroup *exclude_group = NULL;
Traceroute *troute = NULL;
char myname[MAXHOSTNAMELEN + 1];
#if (defined(IN_ADDR_DEEPSTRUCT) || defined( SOLARIS))
/* Note that struct in_addr in solaris is 3 levels deep just to store an
* unsigned int! */
struct ftpinfo ftp = { FTPUSER, FTPPASS, "", { { { 0 } } } , 21, 0};
#else
struct ftpinfo ftp = { FTPUSER, FTPPASS, "", { 0 }, 21, 0};
#endif
struct hostent *target = NULL;
char **fakeargv;
Target *currenths;
vector<Target *> Targets;
char *portlist = NULL; /* Ports list specified by user */
int sourceaddrwarning = 0; /* Have we warned them yet about unguessable
source addresses? */
unsigned int ideal_scan_group_sz = 0;
char hostname[MAXHOSTNAMELEN + 1] = "";
const char *spoofmac = NULL;
time_t timep;
char mytime[128];
struct sockaddr_storage ss;
size_t sslen;
int option_index;
bool iflist = 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=-1, pre_scan_delay=-1, pre_max_scan_delay=-1;
int pre_init_rtt_timeout=-1, pre_min_rtt_timeout=-1, pre_max_rtt_timeout=-1;
int pre_max_retries=-1;
long pre_host_timeout=-1;
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},
{"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, 'i'},
{"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},
{"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 flexability */
{"osscan-guess", no_argument, 0, 0}, /* More guessing flexability */
{"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_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},
{"dns_servers", required_argument, 0, 0},
{"dns-servers", required_argument, 0, 0},
{"port-ratio", required_argument, 0, 0},
{"port_ratio", 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},
#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},
{0, 0, 0, 0}
};
/* argv faking silliness */
fakeargv = (char **) safe_malloc(sizeof(char *) * (argc + 1));
for(i=0; i < argc; i++) {
fakeargv[i] = strdup(argv[i]);
}
fakeargv[argc] = NULL;
if (argc < 2 ) printusage(argv[0], -1);
Targets.reserve(100);
#ifdef WIN32
win_pre_init();
#endif
now = time(NULL);
tm = localtime(&now);
/* OK, lets parse these args! */
optind = 1; /* so it can be called multiple times */
while((arg = getopt_long_only(argc,fakeargv,"6Ab: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-trace") == 0) {
o.scripttrace = 1;
} else if (optcmp(long_options[option_index].name, "script-updatedb") == 0){
o.scriptupdatedb = 1;
} else
#endif
if (optcmp(long_options[option_index].name, "max-os-tries") == 0) {
l = tval2msecs(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 5");
if (l < 20) {
error("WARNING: You specified a round-trip time timeout (%ld ms) that is EXTRAORDINARILY SMALL. Accuracy may suffer.", l);
}
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 > 50000) {
error("Warning: min-rtt-timeout is given in milliseconds, your value seems pretty large.");
}
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");
pre_init_rtt_timeout = l;
} else if (strcmp(long_options[option_index].name, "excludefile") == 0) {
if (exclude_spec)
fatal("--excludefile and --exclude options are mutually exclusive.");
excludefd = fopen(optarg, "r");
if (!excludefd) {
fatal("Failed to open exclude file %s for reading", optarg);
}
} else if (strcmp(long_options[option_index].name, "exclude") == 0) {
if (excludefd)
fatal("--excludefile and --exclude options are mutually exclusive.");
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);
} 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 ) {
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 <= 1500) fatal("--host-timeout is specified in milliseconds unless you qualify it by appending 's', 'm', or 'h'. The value must be greater than 1500 milliseconds");
pre_host_timeout = l;
if (l < 15000) {
error("host-timeout is given in milliseconds, so you specified less than 15 seconds (%lims). This is allowed but not recommended.", 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. */
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.");
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, "max-scan-delay") == 0) {
l = tval2msecs(optarg);
if (l < 0) fatal("--max-scan-delay cannot be negative.");
pre_max_scan_delay = l;
} else if (optcmp(long_options[option_index].name, "max-retries") == 0) {
pre_max_retries = atoi(optarg);
if (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, "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-length") == 0) {
o.extra_payload_length = (int)strtol(optarg, NULL, 10);
if (o.extra_payload_length < 1 || o.extra_payload_length > MAX_PAYLOAD_ALLOWED)
fatal("data-length must be between 1 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(o.extra_payload_length);
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) {
o.log_errors = 1;
} else if (strcmp(long_options[option_index].name, "webxml") == 0) {
o.setXSLStyleSheet("http://nmap.org/data/nmap.xsl");
} else if (strcmp(long_options[option_index].name, "oN") == 0) {
normalfilename = logfilename(optarg, tm);
} else if (strcmp(long_options[option_index].name, "oG") == 0 ||
strcmp(long_options[option_index].name, "oM") == 0) {
machinefilename = logfilename(optarg, tm);
} else if (strcmp(long_options[option_index].name, "oS") == 0) {
kiddiefilename = logfilename(optarg, tm);
} 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) {
xmlfilename = logfilename(optarg, tm);
} else if (strcmp(long_options[option_index].name, "oA") == 0) {
char buf[MAXPATHLEN];
Snprintf(buf, sizeof(buf), "%s.nmap", logfilename(optarg, tm));
normalfilename = strdup(buf);
Snprintf(buf, sizeof(buf), "%s.gnmap", logfilename(optarg, tm));
machinefilename = strdup(buf);
Snprintf(buf, sizeof(buf), "%s.xml", logfilename(optarg, tm));
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, "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)");
}
} else if (strcmp(long_options[option_index].name, "sI") == 0) {
o.idlescan = 1;
idleProxy = optarg;
} else if (strcmp(long_options[option_index].name, "vv") == 0) {
/* Compatability hack ... ugly */
o.verbose += 2;
} else if (strcmp(long_options[option_index].name, "ff") == 0) {
o.fragscan += 16;
} else if (strcmp(long_options[option_index].name, "privileged") == 0) {
o.isr00t = 1;
} else if (strcmp(long_options[option_index].name, "unprivileged") == 0) {
o.isr00t = 0;
} else if (strcmp(long_options[option_index].name, "mtu") == 0) {
o.fragscan = atoi(optarg);
if (o.fragscan <= 0 || o.fragscan % 8 != 0)
fatal("Data payload MTU must be >0 and multiple of 8");
} else if (optcmp(long_options[option_index].name, "port-ratio") == 0) {
char *ptr;
o.topportlevel = strtod(optarg, &ptr);
if (!ptr || o.topportlevel < 0 || o.topportlevel >= 1)
fatal("--port-ratio should be between [0 and 1)");
} else if (optcmp(long_options[option_index].name, "top-ports") == 0) {
char *ptr;
o.topportlevel = strtod(optarg, &ptr);
if (!ptr || o.topportlevel < 1 || ((double)((int)o.topportlevel)) != o.topportlevel)
fatal("--top-ports should be an integer 1 or greater");
} else if (optcmp(long_options[option_index].name, "ip-options") == 0){
o.ipoptions = (u8*) safe_malloc(4*10+1);
o.ipoptionslen = parse_ip_options(optarg, o.ipoptions, 4*10+1, &o.ipopt_firsthop, &o.ipopt_lasthop);
if(o.ipoptionslen > 4*10)
fatal("Ip options can't be more than 40 bytes long");
if(o.ipoptionslen %4 != 0)
fatal("Ip options must be multiple of 4 (read length is %i bytes)", o.ipoptionslen);
} else if(strcmp(long_options[option_index].name, "traceroute") == 0) {
o.traceroute = true;
} else if(strcmp(long_options[option_index].name, "reason") == 0) {
o.reason = true;
} else if(optcmp(long_options[option_index].name, "min-rate") == 0) {
if (sscanf(optarg, "%f", &o.min_packet_send_rate) != 1 || o.min_packet_send_rate <= 0.0)
fatal("Argument to --min-rate must be a positive floating-point number");
} else if(optcmp(long_options[option_index].name, "max-rate") == 0) {
if (sscanf(optarg, "%f", &o.max_packet_send_rate) != 1 || o.max_packet_send_rate <= 0.0)
fatal("Argument to --max-rate must be a positive floating-point number");
} else if (optcmp(long_options[option_index].name, "adler32") == 0) {
o.adler32 = true;
} else if(optcmp(long_options[option_index].name, "stats-every") == 0) {
l = tval2msecs(optarg);
if (l < 0) fatal("Argument to --stats-every cannot be negative.");