76 	int fd, val;  in sock_fanout_open()  local
78 	fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));  in sock_fanout_open()
79 	if (fd < 0) {  in sock_fanout_open()
86 	if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {  in sock_fanout_open()
87 		if (close(fd)) {  in sock_fanout_open()
94 	pair_udp_setfilter(fd);  in sock_fanout_open()
95 	return fd;  in sock_fanout_open()
98 static void sock_fanout_set_ebpf(int fd)  in sock_fanout_set_ebpf()  argument
132 	if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT_DATA, &pfd, sizeof(pfd))) {  in sock_fanout_set_ebpf()
143 static char *sock_fanout_open_ring(int fd)  in sock_fanout_open_ring()  argument
154 	if (setsockopt(fd, SOL_PACKET, PACKET_VERSION, (void *) &val,  in sock_fanout_open_ring()
159 	if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (void *) &req,  in sock_fanout_open_ring()
166 		    PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);  in sock_fanout_open_ring()
175 static int sock_fanout_read_ring(int fd, void *ring)  in sock_fanout_read_ring()  argument