1/* $FreeBSD$ */ 2 3/* 4 * ipsend.h (C) 1997-1998 Darren Reed 5 * 6 * This was written to test what size TCP fragments would get through 7 * various TCP/IP packet filters, as used in IP firewalls. In certain 8 * conditions, enough of the TCP header is missing for unpredictable 9 * results unless the filter is aware that this can happen. 10 * 11 * The author provides this program as-is, with no gaurantee for its 12 * suitability for any specific purpose. The author takes no responsibility 13 * for the misuse/abuse of this program and provides it for the sole purpose 14 * of testing packet filter policies. This file maybe distributed freely 15 * providing it is not modified and that this notice remains in tact. 16 * 17 */ 18#ifndef __P 19# ifdef __STDC__ 20# define __P(x) x 21# else 22# define __P(x) () 23# endif 24#endif 25 26#include <net/if.h> 27 28#include "ipf.h" 29#ifdef linux 30#include <linux/sockios.h> 31#endif 32/* XXX: The following is needed by tcpip.h */ 33#include <netinet/ip_var.h> 34#include "netinet/tcpip.h" 35#include "ipt.h" 36 37extern int resolve __P((char *, char *)); 38extern int arp __P((char *, char *)); 39extern u_short chksum __P((u_short *, int)); 40extern int send_ether __P((int, char *, int, struct in_addr)); 41extern int send_ip __P((int, int, ip_t *, struct in_addr, int)); 42extern int send_tcp __P((int, int, ip_t *, struct in_addr)); 43extern int send_udp __P((int, int, ip_t *, struct in_addr)); 44extern int send_icmp __P((int, int, ip_t *, struct in_addr)); 45extern int send_packet __P((int, int, ip_t *, struct in_addr)); 46extern int send_packets __P((char *, int, ip_t *, struct in_addr)); 47extern u_short ipseclevel __P((char *)); 48extern u_32_t buildopts __P((char *, char *, int)); 49extern int addipopt __P((char *, struct ipopt_names *, int, char *)); 50extern int initdevice __P((char *, int)); 51extern int sendip __P((int, char *, int)); 52#ifdef linux 53extern struct sock *find_tcp __P((int, struct tcpiphdr *)); 54#else 55extern struct tcpcb *find_tcp __P((int, struct tcpiphdr *)); 56#endif 57extern int ip_resend __P((char *, int, struct ipread *, struct in_addr, char *)); 58 59extern void ip_test1 __P((char *, int, ip_t *, struct in_addr, int)); 60extern void ip_test2 __P((char *, int, ip_t *, struct in_addr, int)); 61extern void ip_test3 __P((char *, int, ip_t *, struct in_addr, int)); 62extern void ip_test4 __P((char *, int, ip_t *, struct in_addr, int)); 63extern void ip_test5 __P((char *, int, ip_t *, struct in_addr, int)); 64extern void ip_test6 __P((char *, int, ip_t *, struct in_addr, int)); 65extern void ip_test7 __P((char *, int, ip_t *, struct in_addr, int)); 66extern int do_socket __P((char *, int, struct tcpiphdr *, struct in_addr)); 67extern int kmemcpy __P((char *, void *, int)); 68 69#define KMCPY(a,b,c) kmemcpy((char *)(a), (void *)(b), (int)(c)) 70 71#ifndef OPT_RAW 72#define OPT_RAW 0x80000 73#endif 74