static void * livesync_worker( void * args ) {
struct ot_workstruct ws;
ot_ip6 in_ip; uint16_t in_port;
(void)args;
/* Initialize our "thread local storage" */
ws.inbuf = ws.request = malloc( LIVESYNC_INCOMING_BUFFSIZE );
ws.outbuf = ws.reply = 0;
memcpy( in_ip, V4mappedprefix, sizeof( V4mappedprefix ) );
while( 1 ) {
ws.request_size = socket_recv4(g_socket_in, (char*)ws.inbuf, LIVESYNC_INCOMING_BUFFSIZE, 12+(char*)in_ip, &in_port);
/* Expect at least tracker id and packet type */
if( ws.request_size <= (ssize_t)(sizeof( g_tracker_id ) + sizeof( uint32_t )) )
continue;
if( !accesslist_isblessed(in_ip, OT_PERMISSION_MAY_LIVESYNC))
continue;
if( !memcmp( ws.inbuf, &g_tracker_id, sizeof( g_tracker_id ) ) ) {
/* TODO: log packet coming from ourselves */
continue;
}
switch( uint32_read_big( sizeof( g_tracker_id ) + (char *)ws.inbuf ) ) {
case OT_SYNC_PEER:
livesync_handle_peersync( &ws );
break;
default:
break;
}
}
/* Never returns. */
return NULL;
}
uint64 uint64_read_big(const char *in) {
return ((uint64)uint32_read_big(in)<<32) | uint32_read_big(in+4);
}
