#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>
#include "libbpf.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;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=f63cf464fc379382a271f94ddef36e8c5a0628eb'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?h=nds-private-remove&amp;id=f63cf464fc379382a271f94ddef36e8c5a0628eb'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/pci?h=nds-private-remove&amp;id=f63cf464fc379382a271f94ddef36e8c5a0628eb'>pci</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/pci/ctxfi?h=nds-private-remove&amp;id=f63cf464fc379382a271f94ddef36e8c5a0628eb'>ctxfi</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/pci/ctxfi/ctsrc.c?h=nds-private-remove&amp;id=f63cf464fc379382a271f94ddef36e8c5a0628eb'>ctsrc.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/pci/ctxfi/ctsrc.c?h=nds-private-remove&amp;id=f63cf464fc379382a271f94ddef36e8c5a0628eb&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>