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nmap/nmap.h

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/***************************************************************************
* nmap.h -- 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.c *
* *
***********************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. *
* *
***************************************************************************/
/* $Id$ */
#ifndef NMAP_H
#define NMAP_H
/************************INCLUDES**********************************/
#ifdef WIN32
#include "mswin32\winclude.h"
#endif
#ifdef HAVE_CONFIG_H
#include "nmap_config.h"
#else
#ifdef WIN32
#include "nmap_winconfig.h"
#endif /* WIN32 */
#endif /* HAVE_CONFIG_H */
#ifdef __amigaos__
#include "nmap_amigaos.h"
#endif
#include <nbase.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef STDC_HEADERS
#include <stdlib.h>
#else
void *malloc();
void *realloc();
#endif
#if STDC_HEADERS || HAVE_STRING_H
#include <string.h>
#if !STDC_HEADERS && HAVE_MEMORY_H
#include <memory.h>
#endif
#endif
#if HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef HAVE_BSTRING_H
#include <bstring.h>
#endif
#include <ctype.h>
#include <sys/types.h>
#ifndef WIN32 /* from nmapNT -- seems to work */
#include <sys/wait.h>
#endif /* !WIN32 */
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h> /* Defines MAXHOSTNAMELEN on BSD*/
#endif
/* Linux uses these defines in netinet/ip.h to use the correct struct ip */
#ifndef __FAVOR_BSD
#define __FAVOR_BSD
#endif
#ifndef __USE_BSD
#define __USE_BSD
#endif
#ifndef _BSD_SOURCE
#define _BSD_SOURCE
#endif
/* BSDI needs this to insure the correct struct ip */
#undef _IP_VHL
#include <stdio.h>
#if HAVE_RPC_TYPES_H
#include <rpc/types.h>
#endif
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <sys/stat.h>
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include <errno.h>
#if HAVE_NETDB_H
#include <netdb.h>
#endif
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#include <fcntl.h>
#include <stdarg.h>
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifndef NETINET_IN_SYSTEM_H /* why does OpenBSD not do this? */
#include <netinet/in_systm.h> /* defines n_long needed for netinet/ip.h */
#define NETINET_IN_SYSTEM_H
#endif
#ifndef NETINET_IP_H /* why does OpenBSD not do this? */
#include <netinet/ip.h>
#define NETINET_IP_H
#endif
// #include <netinet/ip_icmp.h>
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
/* For systems without SCTP in netinet/in.h, such as MacOS X */
#ifndef IPPROTO_SCTP
#define IPPROTO_SCTP 132
#endif
/* Keep assert() defined for security reasons */
#undef NDEBUG
#include <math.h>
#include <assert.h>
#if HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
/*#include <net/if_arp.h> *//* defines struct arphdr needed for if_ether.h */
// #if HAVE_NET_IF_H
// #ifndef NET_IF_H /* why doesn't OpenBSD do this?! */
// #include <net/if.h>
// #define NET_IF_H
// #endif
// #endif
// #if HAVE_NETINET_IF_ETHER_H
// #ifndef NETINET_IF_ETHER_H
// #include <netinet/if_ether.h>
// #define NETINET_IF_ETHER_H
// #endif /* NETINET_IF_ETHER_H */
// #endif /* HAVE_NETINET_IF_ETHER_H */
/******* DEFINES ************/
#ifndef NMAP_VERSION
/* Edit this definition only within the quotes, because it is read from this
file by the makefiles. */
#define NMAP_VERSION "4.85BETA10"
#define NMAP_NUM_VERSION "4.85.0.10"
#endif
/* User configurable #defines: */
#define MAX_PROBE_PORTS 10 /* How many TCP probe ports are allowed ? */
/* Default number of ports in parallel. Doesn't always involve actual
sockets. Can also adjust with the -M command line option. */
#define MAX_SOCKETS 36
#define FAKE_ARGV "pine" /* What ps and w should show if you use -q */
/* How do we want to log into ftp sites for */
#define FTPUSER "anonymous"
#define FTPPASS "-wwwuser@"
#define FTP_RETRIES 2 /* How many times should we relogin if we lose control
connection? */
#define MAX_TIMEOUTS MAX_SOCKETS /* How many timed out connection attempts
in a row before we decide the host is
dead? */
#define DEFAULT_TCP_PROBE_PORT_SPEC "80" /* The ports TCP ping probes go to if
unspecified by user -- uber hackers
change this to 113 */
#define DEFAULT_UDP_PROBE_PORT_SPEC "40125" /* The port UDP ping probes go to
if unspecified by user */
#define DEFAULT_SCTP_PROBE_PORT_SPEC "80" /* The port SCTP probes go to
if unspecified by
user */
#define DEFAULT_PROTO_PROBE_PORT_SPEC "1,2,4" /* The IPProto ping probes to use
if unspecified by user */
#define MAX_DECOYS 128 /* How many decoys are allowed? */
#define MAXFALLBACKS 20 /* How many comma separated fallbacks are allowed in the service-probes file? */
/* The trace level to give to nsp_settrace with --packet-trace et al. */
#define NSOCK_TRACE_LEVEL 2
/* Default maximum send delay between probes to the same host */
#ifndef MAX_TCP_SCAN_DELAY
#define MAX_TCP_SCAN_DELAY 1000
#endif
#ifndef MAX_UDP_SCAN_DELAY
#define MAX_UDP_SCAN_DELAY 1000
#endif
#ifndef MAX_SCTP_SCAN_DELAY
#define MAX_SCTP_SCAN_DELAY 1000
#endif
/* Maximum number of extra hostnames, OSs, and devices, we
consider when outputing the extra service info fields */
#define MAX_SERVICE_INFO_FIELDS 5
/* We wait at least 100 ms for a response by default - while that
seems aggressive, waiting too long can cause us to fail to detect
drops until many probes later on extremely low-latency
networks (such as localhost scans). */
#ifndef MIN_RTT_TIMEOUT
#define MIN_RTT_TIMEOUT 100
#endif
#ifndef MAX_RTT_TIMEOUT
#define MAX_RTT_TIMEOUT 10000 /* Never allow more than 10 secs for packet round
trip */
#endif
#define INITIAL_RTT_TIMEOUT 1000 /* Allow 1 second initially for packet responses */
#ifndef MAX_RETRANSMISSIONS
#define MAX_RETRANSMISSIONS 10 /* 11 probes to port at maximum */
#endif
/* Number of hosts we pre-ping and then scan. We do a lot more if
randomize_hosts is set. Every one you add to this leads to ~1K of
extra always-resident memory in nmap */
#define PING_GROUP_SZ 4096
/* DO NOT change stuff after this point */
#define UC(b) (((int)b)&0xff)
#define SA struct sockaddr /*Ubertechnique from R. Stevens */
#define HOST_UNKNOWN 0
#define HOST_UP 1
#define HOST_DOWN 2
#define PINGTYPE_UNKNOWN 0
#define PINGTYPE_NONE 1
#define PINGTYPE_ICMP_PING 2
#define PINGTYPE_ICMP_MASK 4
#define PINGTYPE_ICMP_TS 8
#define PINGTYPE_TCP 16
#define PINGTYPE_TCP_USE_ACK 32
#define PINGTYPE_TCP_USE_SYN 64
/* # define PINGTYPE_RAWTCP 128 used to be here, but was never used. */
#define PINGTYPE_CONNECTTCP 256
#define PINGTYPE_UDP 512
#define PINGTYPE_ARP 1024
#define PINGTYPE_PROTO 2048
#define PINGTYPE_SCTP_INIT 4096
/* Empirically determined optimum combinations of different numbers of probes:
-PE
-PE -PA80
-PE -PA80 -PS443
-PE -PA80 -PS443 -PP
-PE -PA80 -PS443 -PP -PU40125
We use the four-probe combination. */
#define DEFAULT_PING_TYPES (PINGTYPE_ICMP_PING|PINGTYPE_TCP|PINGTYPE_TCP_USE_ACK|PINGTYPE_TCP_USE_SYN|PINGTYPE_ICMP_TS)
#define DEFAULT_PING_ACK_PORT_SPEC "80"
#define DEFAULT_PING_SYN_PORT_SPEC "443"
/* For nonroot. */
#define DEFAULT_PING_CONNECT_PORT_SPEC "80,443"
/* OS scan */
#define OS_SCAN_DEFAULT 9
/* How many syn packets do we send to TCP sequence a host? */
#define NUM_SEQ_SAMPLES 6
/* The max length of each line of the subject fingerprint when
wrapped. */
#define FP_RESULT_WRAP_LINE_LEN 74
/* TCP Timestamp Sequence */
#define TS_SEQ_UNKNOWN 0
#define TS_SEQ_ZERO 1 /* At least one of the timestamps we received back was 0 */
#define TS_SEQ_2HZ 2
#define TS_SEQ_100HZ 3
#define TS_SEQ_1000HZ 4
#define TS_SEQ_OTHER_NUM 5
#define TS_SEQ_UNSUPPORTED 6 /* System didn't send back a timestamp */
#define IPID_SEQ_UNKNOWN 0
#define IPID_SEQ_INCR 1 /* simple increment by one each time */
#define IPID_SEQ_BROKEN_INCR 2 /* Stupid MS -- forgot htons() so it
counts by 256 on little-endian platforms */
#define IPID_SEQ_RPI 3 /* Goes up each time but by a "random" positive
increment */
#define IPID_SEQ_RD 4 /* Appears to select IPID using a "random" distributions (meaning it can go up or down) */
#define IPID_SEQ_CONSTANT 5 /* Contains 1 or more sequential duplicates */
#define IPID_SEQ_ZERO 6 /* Every packet that comes back has an IP.ID of 0 (eg Linux 2.4 does this) */
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif
/* Max payload: Worst case is IPv4 with 40bytes of options and TCP with 20
* bytes of options. */
#define MAX_PAYLOAD_ALLOWED 65535-60-40
#ifndef recvfrom6_t
# define recvfrom6_t int
#endif
/********************** LOCAL INCLUDES *****************************/
#include "global_structures.h"
/***********************STRUCTURES**********************************/
/* Moved to global_structures.h */
/***********************PROTOTYPES**********************************/
/* print Interactive usage information */
void printinteractiveusage();
int ftp_anon_connect(struct ftpinfo *ftp);
/* port manipulators */
void getpts(const char *expr, struct scan_lists * ports); /* someone stole the name getports()! */
void getpts_simple(const char *origexpr, int range_type,
unsigned short **list, int *count);
void free_scan_lists(struct scan_lists *ports);
/* socket manipulation functions */
void init_socket(int sd);
/* Renamed main so that interactive mode could preprocess when neccessary */
int nmap_main(int argc, char *argv[]);
void nmap_free_mem();
/* general helper functions */
const char *statenum2str(int state);
const char *scantype2str(stype scantype);
void sigdie(int signo);
void reaper(int signo);
char *seqreport(struct seq_info *seq);
const char *ipidclass2ascii(int seqclass);
const char *tsseqclass2ascii(int seqclass);
/* Convert a TCP sequence prediction difficulty index like 1264386
into a difficulty string like "Worthy Challenge */
const char *seqidx2difficultystr(unsigned long idx);
int nmap_fetchfile(char *filename_returned, int bufferlen, const char *file);
int nmap_fileexistsandisreadable(const char* pathname);
int gather_logfile_resumption_state(char *fname, int *myargc, char ***myargv);
#endif /* NMAP_H */
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