Method preprocess_alive

src/mon/OSDMonitor.cc:3916–3954

// alive

bool OSDMonitor::preprocess_alive(MonOpRequestRef op)
{
  op->mark_osdmon_event(__func__);
  auto m = op->get_req<MOSDAlive>();
  int from = m->get_orig_source().num();

  // check permissions, ignore if failed
  MonSession *session = op->get_session();
  if (!session)
    goto ignore;
  if (!session->is_capable("osd", MON_CAP_X)) {
    dout(0) << "attempt to send MOSDAlive from entity with insufficient privileges:"
	    << session->caps << dendl;
    goto ignore;
  }

  if (!osdmap.is_up(from) ||
      !osdmap.get_addrs(from).legacy_equals(m->get_orig_source_addrs())) {
    dout(7) << "preprocess_alive ignoring alive message from down "
	    << m->get_orig_source() << " " << m->get_orig_source_addrs()
	    << dendl;
    goto ignore;
  }

  if (osdmap.get_up_thru(from) >= m->want) {
    // yup.
    dout(7) << "preprocess_alive want up_thru " << m->want << " dup from " << m->get_orig_source_inst() << dendl;
    _reply_map(op, m->version);
    return true;
  }

  dout(10) << "preprocess_alive want up_thru " << m->want
	   << " from " << m->get_orig_source_inst() << dendl;
  return false;

 ignore:
  mon.no_reply(op);
  return true;
}

bool OSDMonitor::prepare_alive(MonOpRequestRef op)
{