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/* $Id: xprobe.h,v 1.18 2001/10/20 15:23:55 fygrave Exp $ */
/*
** Copyright (C) 2001 Fyodor Yarochkin <fygrave@tigerteam.net>,
** Ofir Arkin <ofir@sys-security.com>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** All material for nonprofit, educational use only.
**
** 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 for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef XPROBE_H
#define XPROBE_H
#include "config.h"
#include <stdio.h>
#include <time.h>
#define IP_VERSION 4
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#include <sys/param.h>
#ifndef bzero
#ifdef NOBZERO
#define bzero(x,y) memset((void *)x,(int)0,(size_t) y)
#define bcopy(x,y,z) memcpy((void *)y, (const void *)x, (size_t) z)
#endif /* NOBZERO */
#endif /* bzero*/
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <errno.h>
#ifdef __linux__
#ifdef HAVE_GLIB_H
#include <glib.h>
#endif
#endif
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <time.h>
#include <sys/time.h>
#ifdef __linux__
#define __FAVOR_BSD
#endif
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#ifndef __linux__
#include <netinet/ip_var.h>
#else /* __linux__ */
#include <sys/time.h>
#endif /* __linux__ */
#include <netinet/ip_icmp.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <net/if.h>
#if !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(SOLARIS) && !defined(__sgi)
#include <net/ethernet.h>
#endif
#ifdef SOLARIS
#include <sys/sockio.h>
#ifndef INADDR_NONE
#define INADDR_NONE -1
#endif
#endif
#include <netinet/if_ether.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <math.h>
#include <signal.h>
#include <pcap.h>
/* some types correction */
#if defined(__FreeBSD__) || defined(__linux__)
#define TIMEZONE_T struct timezone
#else
#define TIMEZONE_T unsigned long
#endif
/* packet pointers calculation */
#define VOIDPTR_T long
typedef struct _rpack {
ssize_t packsize;
void *pkt;
void *orig_pkt;
struct ip *ip, *orig_ip;
struct icmp *icmp;
} rpack_t;
/*
* for portability reasons we maintain ipovly header here.
*/
typedef struct _ipovly {
u_char ih_x1[9]; /* (unused) */
u_char ih_pr; /* protocol */
u_short ih_len; /* protocol length */
struct in_addr ih_src; /* source internet address */
struct in_addr ih_dst; /* destination internet address */
} ipovly_t;
typedef struct _interf {
struct in_addr addr;
struct in_addr net;
struct in_addr netmask;
char iname[IFNAMSIZ + 1];
} inter_t;
typedef struct _hstnet {
unsigned long addr;
unsigned long netmask;
} hstnet_t;
/* external vars */
extern char *optarg;
extern int optind;
extern inter_t interf;
/* locally defined external vars (for ref. from other modules */
extern char *iname; /* interface name we run on, could be NULL */
extern FILE *logfn; /* logfile */
extern char verbose; /* verbosity flag */
extern unsigned short udp_portno;
extern int receive_timeout;
/* function prototypes */
/* general use */
extern void usage(char *);
extern int resolve_target(char *, struct sockaddr_in *);
extern int parse_hostname(char *, hstnet_t *);
extern unsigned long parsemask(char *);
extern unsigned short in_cksum(unsigned short *,int);
struct in_addr get_iface_addr(char *);
unsigned short udp_cksum_calc(struct ip *, struct udphdr *, unsigned short );
void free_res(rpack_t **);
void make_ippkt(struct ip *, unsigned char, struct in_addr, struct in_addr ,
unsigned short, unsigned short, unsigned short);
extern int scan_host(unsigned long);
extern void do_scan(hstnet_t *);
/* icmp routines */
extern int wait_icmp(int , struct sockaddr_in *, unsigned char *, int );
extern int udp_find_closed(struct sockaddr_in);
extern rpack_t *send_udp(struct sockaddr_in);
extern rpack_t *send_icmpts_req(struct sockaddr_in);
extern rpack_t *send_icmpmaskreq_req(struct sockaddr_in);
extern rpack_t *send_icmpireq_req(struct sockaddr_in);
extern rpack_t *send_icmpecho_req(struct sockaddr_in);
rpack_t *send_icmpecho_var_req(struct sockaddr_in, int);
extern int do_logic(struct sockaddr_in);
void tree_message(const char *,...);
void fin_message(const char *,...);
void log_message(const char *,...);
void hexdump(unsigned char *, ssize_t);
int init_pcap(char *, char *, hstnet_t *);
unsigned char *next_pack(ssize_t *);
unsigned char *read_icmp(ssize_t *, int, int);
void read_icmp_timeout(int sig);
/* packet test routines (pkt_exams.c) */
int udp_checksum_ver(rpack_t *);
int icmp_unreach_lencheck(rpack_t *);
int frag_bits_flipped(rpack_t *);
int ip_checksum_ok(rpack_t *);
#include "defines.h"
#endif /* XPROBE_H */
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