test-raw-1.c
tuexen (Michael Tuexen)
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	tuexen
	Jan 13 2019, 3:32 PM

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test-raw-1.c
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	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <netinet/ip.h>
	#include <arpa/inet.h>
	#include <string.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>

	int main(void)
	{
	char buffer[4096];
	struct sockaddr_in addr;
	struct ip *ip;
	const int on = 1;
	int i, fd;

	memset(&addr, 0, sizeof(struct sockaddr_in));
	addr.sin_family = AF_INET;
	addr.sin_len = sizeof(struct sockaddr_in);
	addr.sin_port = htons(0);
	addr.sin_addr.s_addr = inet_addr("212.201.121.85");

	ip = (struct ip *)buffer;
	ip->ip_hl = 60 >> 2;
	ip->ip_v = IPVERSION;
	ip->ip_tos = IPTOS_THROUGHPUT;
	ip->ip_len = htons(4096);
	ip->ip_id = 0;
	ip->ip_off = 0;
	ip->ip_ttl = IPDEFTTL;
	ip->ip_p = IPPROTO_SCTP;
	ip->ip_sum = 0;
	ip->ip_src.s_addr = inet_addr("0.0.0.0");
	ip->ip_dst.s_addr = inet_addr("212.201.121.85");

	arc4random_buf(buffer + 60, sizeof(buffer) - 60);

	if ((fd = socket(AF_INET, SOCK_RAW, IPPROTO_SCTP)) < 0) {
	perror("socket");
	}
	if (connect(fd, (const struct sockaddr *)&addr, sizeof(struct sockaddr_in)) < 0) {
	perror("connect");
	}
	if (setsockopt(fd, IPPROTO_IP, IP_HDRINCL, &on, sizeof(int))) {
	perror("setsockopt");
	}
	for (i = 0; i < 1024 * 1024; i++) {
	arc4random_buf(buffer + 20, 40);
	if (write(fd, buffer, sizeof(buffer)) != sizeof(buffer)) {
	perror("write");
	}
	}
	if (close(fd) < 0) {
	perror("close");
	}
	return (0);
	}