コード例 #1
0
ファイル: raw.c プロジェクト: qmind/linuxptp-as
static int open_socket(const char *name, int event)
{
	struct sockaddr_ll addr;
	int fd, index;

	fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
	if (fd < 0) {
		pr_err("socket failed: %m");
		goto no_socket;
	}
	index = sk_interface_index(fd, name);
	if (index < 0)
		goto no_option;

	memset(&addr, 0, sizeof(addr));
	addr.sll_ifindex = index;
	addr.sll_family = AF_PACKET;
	addr.sll_protocol = htons(ETH_P_ALL);
	if (bind(fd, (struct sockaddr *) &addr, sizeof(addr))) {
		pr_err("bind failed: %m");
		goto no_option;
	}
	if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name))) {
		pr_err("setsockopt SO_BINDTODEVICE failed: %m");
		goto no_option;
	}
	if (raw_configure(fd, event, index, ptp_dst_mac, p2p_dst_mac, 1))
		goto no_option;

	return fd;
no_option:
	close(fd);
no_socket:
	return -1;
}
コード例 #2
0
ファイル: udp6.c プロジェクト: hermixy/ptpdemo
static int open_socket_ipv6(char *name, struct in6_addr mc_addr[2], short port,
			    int *interface_index)
{
	struct sockaddr_in6 addr;
	int fd, index, on = 1;

	memset(&addr, 0, sizeof(addr));
	addr.sin6_family = AF_INET6;
	addr.sin6_addr = in6addr_any;
	addr.sin6_port = htons(port);

	fd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
	if (fd < 0) {
		pr_err("socket failed: %m");
		goto no_socket;
	}
	index = sk_interface_index(fd, name);
	if (index < 0)
		goto no_option;

	*interface_index = index;

	if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on))) {
		pr_err("setsockopt SO_REUSEADDR failed: %m");
		goto no_option;
	}
	if (bind(fd, (struct sockaddr *) &addr, sizeof(addr))) {
		pr_err("bind failed: %m");
		goto no_option;
	}
	if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name))) {
		pr_err("setsockopt SO_BINDTODEVICE failed: %m");
		goto no_option;
	}
	addr.sin6_addr = mc_addr[0];
	if (mc_join(fd, index, (struct sockaddr *) &addr, sizeof(addr))) {
		pr_err("mcast_join failed");
		goto no_option;
	}
	addr.sin6_addr = mc_addr[1];
	if (mc_join(fd, index, (struct sockaddr *) &addr, sizeof(addr))) {
		pr_err("mcast_join failed");
		goto no_option;
	}
	if (mc_bind(fd, index)) {
		goto no_option;
	}
	return fd;
no_option:
	close(fd);
no_socket:
	return -1;
}