1 /* SPDX-License-Identifier: GPL-2.0 */
4 #include <linux/unistd.h>
8 #include <linux/if_ether.h>
10 #include <linux/if_packet.h>
11 #include <arpa/inet.h>
13 static inline int open_raw_sock(const char *name)
15 struct sockaddr_ll sll;
18 sock = socket(PF_PACKET, SOCK_RAW | SOCK_NONBLOCK | SOCK_CLOEXEC, htons(ETH_P_ALL));
20 printf("cannot create raw socket\n");
24 memset(&sll, 0, sizeof(sll));
25 sll.sll_family = AF_PACKET;
26 sll.sll_ifindex = if_nametoindex(name);
27 sll.sll_protocol = htons(ETH_P_ALL);
28 if (bind(sock, (struct sockaddr *)&sll, sizeof(sll)) < 0) {
29 printf("bind to %s: %s\n", name, strerror(errno));