/* SPDX-License-Identifier: GPL-2.0 */#include <stdlib.h>#include <stdio.h>#include <linux/unistd.h>#include <unistd.h>#include <string.h>#include <errno.h>#include <linux/if_ether.h>#include <net/if.h>#include <linux/if_packet.h>#include <arpa/inet.h> static inline int open_raw_sock(const char *name){ struct sockaddr_ll sll; int sock; sock = socket(PF_PACKET, SOCK_RAW | SOCK_NONBLOCK | SOCK_CLOEXEC, htons(ETH_P_ALL)); if (sock < 0) { printf("cannot create raw socket\n"); return -1; } memset(&sll, 0, sizeof(sll)); sll.sll_family = AF_PACKET; sll.sll_ifindex = if_nametoindex(name); sll.sll_protocol = htons(ETH_P_ALL); if (bind(sock, (struct sockaddr *)&sll, sizeof(sll)) < 0) { printf("bind to %s: %s\n", name, strerror(errno)); close(sock); return -1; } return sock;}
/* SPDX-License-Identifier: GPL-2.0 */
#include <stdlib.h>
#include <stdio.h>
#include <linux/unistd.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <linux/if_ether.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <arpa/inet.h>
static inline int open_raw_sock(const char *name)
{
struct sockaddr_ll sll;
int sock;
sock = socket(PF_PACKET, SOCK_RAW | SOCK_NONBLOCK | SOCK_CLOEXEC, htons(ETH_P_ALL));
if (sock < 0) {
printf("cannot create raw socket\n");
return -1;
}
memset(&sll, 0, sizeof(sll));
sll.sll_family = AF_PACKET;
sll.sll_ifindex = if_nametoindex(name);
sll.sll_protocol = htons(ETH_P_ALL);
if (bind(sock, (struct sockaddr *)&sll, sizeof(sll)) < 0) {
printf("bind to %s: %s\n", name, strerror(errno));
close(sock);
return -1;
}
return sock;
}