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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536/* 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;}