snot_main.c

IPv4和IPv6下发任意包的程序

/*
** snot: How to annoy an intrusion detection system
*/
#include "snot.h"


/* global variables */ 

/* All the text that matches the option strings */
char *option_text[OPTION_MAX] =
{ "msg", "ttl", "tos", "id", "ipopts", "fragbits", "dsize", "flags",
"seq", "ack", "itype", "icode", "icmp_id", "icmp_seq", "content",
"content_list", "offset", "depth", "nocase", "rpc", "reference"
};
/* ip options */
char *ipopts_text[IPOPTS_MAX] = 
{ "rr", "eol", "nop", "ts", "sec", "lsrr", "lsrre", "ssrr", "satid" 
};

int total_rules;

struct rule *rulehead;
struct var_list *vhead;

uint8_t netmask[33*16];		// modified

/* end globals */

int
main(int argc, char *argv[])
{
	int i;
	char *msrc=NULL;
	char *mdst=NULL;
	char *rulefile=NULL;
	int mint=0, mdly=0, mnum=0;
	
#if(WIN32)
	WSADATA wsdata;
	WORD wVersionRequested;

	/* Initialise winsock */
	wVersionRequested = MAKEWORD(1,1);
	i = WSAStartup(wVersionRequested, &wsdata);
	if (i){
		printf("main: Couldn't initialise winsock.\n");
	}

#endif

	while((i = getopt(argc, argv, "r:s:d:i:l:n:")) != -1)
	{
		switch(i)
		{
		case 'n':
			mnum = atoi(optarg);
			break;
		case 'r':
			rulefile = strdup(optarg);
			break;
		case 's':
			msrc = strdup(optarg);
			break;
		case 'l':
			mdly = atoi(optarg);
			break;
		case 'd':
			mdst = strdup(optarg);
			break;
#if(WIN32)
		case 'i':
			mint = atoi(optarg);
			break;
#endif
		}
	}

	if (rulefile == NULL)
	{
		printf("Usage: snot -r <rulefile> [-s <source IP>] [-d <dest IP>] [-n <number of packets>] [-l <delay>]");
#if(WIN32)
			printf(" [-i <interface number>]");
#endif
		printf("\n");
		return(EXIT_FAILURE);
	}

#if(WIN32)
#ifdef DEBUG
	printf("Opening Adapter #%d\n",mint);
#endif
	if(libnet_win32_init(mint) == FALSE)
	{
		exit(0);
	}
#endif

	printf("snot %s by sniph ([e-mail])\n\n", VERSION);
	printf("----------------------------------------\n");
	printf("Rulefile           : %s\n",rulefile);

	printf("Source Address     :");

	if(msrc) printf(" %s\n",msrc);
	else printf(" Use rules file\n");

	printf("Dest Address       :");

	if(mdst) printf(" %s\n",mdst);
	else printf(" Use rules file\n");

	printf("Number of Packets  :");

	if(mnum) printf(" %d\n",mnum);
	else printf(" Unlimited\n");

	printf("Delay (max seconds):");

	if(mdly) printf(" %d\n",mdly);
	else printf(" No Delay\n");


#if(WIN32)
	printf("Interface          : %d\n",mint);
#endif
	printf("----------------------------------------\n");
	printf("\n");

	if(parse_rules(msrc,mdst,rulefile))
	{
		printf("Error parsing rules.. Exiting\n");
		return(EXIT_FAILURE);
	}
	if (!total_rules)
	{
		printf("No rules successfully parsed.. Exiting\n");
		return(EXIT_FAILURE);
	}
	printf("\n[Parse Rules - Completed parsing %d rules - Sending now]\n\n",total_rules);
	
	if(send_packets(mdly,mnum))
	{
		printf("Error sending packets.. Exiting\n");
		return(EXIT_FAILURE);
	}


	return(EXIT_SUCCESS);
}