Function peerChange

tsserver/server.go:694–735

(req *tailcfg.MapRequest, node *tailcfg.Node)

}

func peerChange(req *tailcfg.MapRequest, node *tailcfg.Node) tailcfg.PeerChange {
	ret := tailcfg.PeerChange{
		NodeID: node.ID,
	}

	if node.Key.String() != req.NodeKey.String() {
		ret.Key = &req.NodeKey
	}

	if node.DiscoKey.String() != req.DiscoKey.String() {
		ret.DiscoKey = &req.DiscoKey
	}

	if node.Hostinfo.Valid() &&
		node.Hostinfo.NetInfo().Valid() &&
		req.Hostinfo != nil &&
		req.Hostinfo.NetInfo != nil &&
		node.Hostinfo.NetInfo().PreferredDERP() != req.Hostinfo.NetInfo.PreferredDERP {
		ret.DERPRegion = req.Hostinfo.NetInfo.PreferredDERP
	}

	if req.Hostinfo != nil && req.Hostinfo.NetInfo != nil {
		// If there is no stored Hostinfo or NetInfo, use
		// the new PreferredDERP.
		if !node.Hostinfo.Valid() {
			ret.DERPRegion = req.Hostinfo.NetInfo.PreferredDERP
		} else if !node.Hostinfo.NetInfo().Valid() {
			ret.DERPRegion = req.Hostinfo.NetInfo.PreferredDERP
		} else {
			// If there is a PreferredDERP check if it has changed.
			if node.Hostinfo.NetInfo().PreferredDERP() != req.Hostinfo.NetInfo.PreferredDERP {
				ret.DERPRegion = req.Hostinfo.NetInfo.PreferredDERP
			}
		}
	}

	ret.Endpoints = req.Endpoints

	ret.LastSeen = ptr.To(time.Now())

	return ret
}

func hostInfoChanged(old, new *tailcfg.Hostinfo) (bool, bool) {
	if old.Equal(new) {