/*---------------------------------------------------------------------------*/
PROCESS_THREAD(mcast_sink_process, ev, data)
{
PROCESS_BEGIN();
PRINTF("Multicast Engine: '%s'\n", UIP_MCAST6.name);
if(join_mcast_group() == NULL) {
PRINTF("Failed to join multicast group\n");
PROCESS_EXIT();
}
count = 0;
sink_conn = udp_new(NULL, UIP_HTONS(0), NULL);
udp_bind(sink_conn, UIP_HTONS(MCAST_SINK_UDP_PORT));
PRINTF("Listening: ");
PRINT6ADDR(&sink_conn->ripaddr);
PRINTF(" local/remote port %u/%u\n",
UIP_HTONS(sink_conn->lport), UIP_HTONS(sink_conn->rport));
while(1) {
PROCESS_YIELD();
if(ev == tcpip_event) {
tcpip_handler();
}
}
PROCESS_END();
}
/*
* Set up receiving multicast socket over UDP
*/
static struct socket * make_receive_sock(void)
{
struct socket *sock;
/* First create a socket */
if (sock_create(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock) < 0) {
IP_VS_ERR("Error during creation of socket; terminating\n");
return NULL;
}
/* it is equivalent to the REUSEADDR option in user-space */
sock->sk->reuse = 1;
if (sock->ops->bind(sock,
(struct sockaddr*)&mcast_addr,
sizeof(struct sockaddr)) < 0) {
IP_VS_ERR("Error binding to the multicast addr\n");
goto error;
}
/* join the multicast group */
if (join_mcast_group(sock->sk,
(struct in_addr*)&mcast_addr.sin_addr,
ip_vs_mcast_ifn) < 0) {
IP_VS_ERR("Error joining to the multicast group\n");
goto error;
}
return sock;
error:
sock_release(sock);
return NULL;
}
