Method updatePeers

tailnet/configmaps.go:395–419

updatePeers handles protocol updates about peers from the coordinator. c.L MUST NOT be held.

(updates []*proto.CoordinateResponse_PeerUpdate)

// updatePeers handles protocol updates about peers from the coordinator.  c.L MUST NOT be held.
func (c *configMaps) updatePeers(updates []*proto.CoordinateResponse_PeerUpdate) {
	status := c.status()
	c.L.Lock()
	defer c.L.Unlock()

	// Update all the lastHandshake values here. That way we don't have to
	// worry about them being up-to-date when handling updates below, and it covers
	// all peers, not just the ones we got updates about.
	for _, lc := range c.peers {
		if lc.node != nil {
			if peerStatus, ok := status.Peer[lc.node.Key]; ok {
				lc.lastHandshake = peerStatus.LastHandshake
			}
		}
	}

	for _, update := range updates {
		if dirty := c.updatePeerLocked(update, status); dirty {
			c.netmapDirty = true
		}
	}
	if c.netmapDirty {
		c.Broadcast()
	}
}

// status requests a status update from the engine.
func (c *configMaps) status() *ipnstate.Status {