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Add SwitchOptions and MaxTotalQueueSize
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@ -638,7 +638,7 @@ func (a *admin) getData_getSwitchQueues() admin_nodeInfo {
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{"queues_size", switchTable.queues.size},
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{"highest_queues_count", switchTable.queues.maxbufs},
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{"highest_queues_size", switchTable.queues.maxsize},
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{"maximum_queues_size", switch_buffer_maxSize},
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{"maximum_queues_size", switchTable.queuetotalmaxsize},
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}
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}
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a.core.switchTable.doAdmin(getSwitchQueues)
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@ -18,6 +18,7 @@ type NodeConfig struct {
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IfMTU int `comment:"Maximux Transmission Unit (MTU) size for your local TUN/TAP interface.\nDefault is the largest supported size for your platform. The lowest\npossible value is 1280."`
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SessionFirewall SessionFirewall `comment:"The session firewall controls who can send/receive network traffic\nto/from. This is useful if you want to protect this node without\nresorting to using a real firewall. This does not affect traffic\nbeing routed via this node to somewhere else. Rules are prioritised as\nfollows: blacklist, whitelist, always allow outgoing, direct, remote."`
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TunnelRouting TunnelRouting `comment:"Allow tunneling non-Yggdrasil traffic over Yggdrasil. This effectively\nallows you to use Yggdrasil to route to, or to bridge other networks,\nsimilar to a VPN tunnel. Tunnelling works between any two nodes and\ndoes not require them to be directly peered."`
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SwitchOptions SwitchOptions `comment:"Advanced options for tuning the switch. Normally you will not need\nto edit these options."`
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//Net NetConfig `comment:"Extended options for connecting to peers over other networks."`
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}
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@ -45,3 +46,8 @@ type TunnelRouting struct {
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IPv4Destinations map[string]string `comment:"IPv4 CIDR subnets, mapped to the EncryptionPublicKey to which they\nshould be routed, e.g. { \"a.b.c.d/e\": \"boxpubkey\", ... }"`
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IPv4Sources []string `comment:"IPv4 source subnets which are allowed to be tunnelled. Unlike for\nIPv6, this option is required for bridging IPv4 traffic. Only\ntraffic with a source matching these subnets will be tunnelled."`
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}
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// SwitchOptions contains tuning options for the switch
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type SwitchOptions struct {
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MaxTotalQueueSize uint64 `comment:"Maximum size of all switch queues combined."`
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}
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@ -105,6 +105,10 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
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return err
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}
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c.switchTable.doAdmin(func() {
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c.switchTable.queuetotalmaxsize = nc.SwitchOptions.MaxTotalQueueSize
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})
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c.sessions.setSessionFirewallState(nc.SessionFirewall.Enable)
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c.sessions.setSessionFirewallDefaults(
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nc.SessionFirewall.AllowFromDirect,
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@ -156,19 +156,20 @@ type switchData struct {
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// All the information stored by the switch.
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type switchTable struct {
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core *Core
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key sigPubKey // Our own key
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time time.Time // Time when locator.tstamp was last updated
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drop map[sigPubKey]int64 // Tstamp associated with a dropped root
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mutex sync.RWMutex // Lock for reads/writes of switchData
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parent switchPort // Port of whatever peer is our parent, or self if we're root
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data switchData //
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updater atomic.Value // *sync.Once
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table atomic.Value // lookupTable
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packetIn chan []byte // Incoming packets for the worker to handle
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idleIn chan switchPort // Incoming idle notifications from peer links
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admin chan func() // Pass a lambda for the admin socket to query stuff
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queues switch_buffers // Queues - not atomic so ONLY use through admin chan
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core *Core
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key sigPubKey // Our own key
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time time.Time // Time when locator.tstamp was last updated
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drop map[sigPubKey]int64 // Tstamp associated with a dropped root
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mutex sync.RWMutex // Lock for reads/writes of switchData
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parent switchPort // Port of whatever peer is our parent, or self if we're root
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data switchData //
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updater atomic.Value // *sync.Once
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table atomic.Value // lookupTable
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packetIn chan []byte // Incoming packets for the worker to handle
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idleIn chan switchPort // Incoming idle notifications from peer links
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admin chan func() // Pass a lambda for the admin socket to query stuff
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queues switch_buffers // Queues - not atomic so ONLY use through admin chan
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queuetotalmaxsize uint64 // Maximum combined size of queues
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}
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// Initializes the switchTable struct.
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@ -620,8 +621,6 @@ type switch_packetInfo struct {
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time time.Time // Timestamp of when the packet arrived
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}
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const switch_buffer_maxSize = 4 * 1048576 // Maximum 4 MB
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// Used to keep track of buffered packets
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type switch_buffer struct {
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packets []switch_packetInfo // Currently buffered packets, which may be dropped if it grows too large
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@ -629,10 +628,11 @@ type switch_buffer struct {
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}
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type switch_buffers struct {
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bufs map[string]switch_buffer // Buffers indexed by StreamID
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size uint64 // Total size of all buffers, in bytes
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maxbufs int
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maxsize uint64
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switchTable *switchTable
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bufs map[string]switch_buffer // Buffers indexed by StreamID
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size uint64 // Total size of all buffers, in bytes
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maxbufs int
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maxsize uint64
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}
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func (b *switch_buffers) cleanup(t *switchTable) {
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@ -649,7 +649,7 @@ func (b *switch_buffers) cleanup(t *switchTable) {
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}
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}
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for b.size > switch_buffer_maxSize {
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for b.size > b.switchTable.queuetotalmaxsize {
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// Drop a random queue
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target := rand.Uint64() % b.size
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var size uint64 // running total
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@ -719,6 +719,7 @@ func (t *switchTable) handleIdle(port switchPort) bool {
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// The switch worker does routing lookups and sends packets to where they need to be
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func (t *switchTable) doWorker() {
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t.queues.switchTable = t
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t.queues.bufs = make(map[string]switch_buffer) // Packets per PacketStreamID (string)
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idle := make(map[switchPort]struct{}) // this is to deduplicate things
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for {
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@ -69,6 +69,7 @@ func generateConfig(isAutoconf bool) *nodeConfig {
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cfg.SessionFirewall.Enable = false
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cfg.SessionFirewall.AllowFromDirect = true
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cfg.SessionFirewall.AllowFromRemote = true
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cfg.SwitchOptions.MaxTotalQueueSize = 4 * 1048576
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return &cfg
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}
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@ -216,8 +216,8 @@ func main() {
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fmt.Printf("Highest queue size: %d bytes\n", uint(highestqueuesize))
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}
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if m, ok := v["maximum_queues_size"].(float64); ok {
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fmt.Printf("Maximum queue size: %d bytes\n", uint(maximumqueuesize))
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maximumqueuesize = m
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fmt.Printf("Maximum queue size: %d bytes\n", uint(maximumqueuesize))
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}
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if queues, ok := v["queues"].([]interface{}); ok {
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if len(queues) != 0 {
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