Function vxlan_socket_init

freebsd/net/if_vxlan.c:967–1008

}

static int
vxlan_socket_init(struct vxlan_socket *vso, struct ifnet *ifp)
{
	struct thread *td;
	int error;

	td = curthread;

	error = socreate(vso->vxlso_laddr.sa.sa_family, &vso->vxlso_sock,
	    SOCK_DGRAM, IPPROTO_UDP, td->td_ucred, td);
	if (error) {
		if_printf(ifp, "cannot create socket: %d\n", error);
		return (error);
	}

	error = udp_set_kernel_tunneling(vso->vxlso_sock,
	    vxlan_rcv_udp_packet, NULL, vso);
	if (error) {
		if_printf(ifp, "cannot set tunneling function: %d\n", error);
		return (error);
	}

	if (vxlan_reuse_port != 0) {
		struct sockopt sopt;
		int val = 1;

		bzero(&sopt, sizeof(sopt));
		sopt.sopt_dir = SOPT_SET;
		sopt.sopt_level = IPPROTO_IP;
		sopt.sopt_name = SO_REUSEPORT;
		sopt.sopt_val = &val;
		sopt.sopt_valsize = sizeof(val);
		error = sosetopt(vso->vxlso_sock, &sopt);
		if (error) {
			if_printf(ifp,
			    "cannot set REUSEADDR socket opt: %d\n", error);
			return (error);
		}
	}

	return (0);
}

static int
vxlan_socket_bind(struct vxlan_socket *vso, struct ifnet *ifp)