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control/controlclient, types/netmap: start plumbing delta netmap updates

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Updates #1909

Change-Id: I03152da176b2b95232b56acabfb55dcdfaa16b79
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2023-09-01 19:28:00 -07:00
committed by Brad Fitzpatrick
parent c0ade132e6
commit 3af051ea27
14 changed files with 715 additions and 13 deletions
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17
control/controlclient/direct.go
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@ -194,6 +194,19 @@ type NetmapUpdater interface {
// the diff themselves between the previous full & next full network maps.
}
// NetmapDeltaUpdater is an optional interface that can be implemented by
// NetmapUpdater implementations to receive delta updates from the controlclient
// rather than just full updates.
type NetmapDeltaUpdater interface {
// UpdateNetmapDelta is called with discrete changes to the network map.
//
// The ok result is whether the implementation was able to apply the
// mutations. It might return false if its internal state doesn't
// support applying them or a NetmapUpdater it's wrapping doesn't
// implement the NetmapDeltaUpdater optional method.
UpdateNetmapDelta([]netmap.NodeMutation) (ok bool)
}
// NewDirect returns a new Direct client.
func NewDirect(opts Options) (*Direct, error) {
if opts.ServerURL == "" {
@ -1301,6 +1314,7 @@ func (ms *mapSession) setControlKnobsFromNodeAttrs(selfNodeAttrs []string) {
disableDRPO bool
disableUPnP bool
randomizeClientPort bool
disableDeltaUpdates bool
oneCGNAT opt.Bool
forceBackgroundSTUN bool
)
@ -1320,6 +1334,8 @@ func (ms *mapSession) setControlKnobsFromNodeAttrs(selfNodeAttrs []string) {
oneCGNAT.Set(false)
case tailcfg.NodeAttrDebugForceBackgroundSTUN:
forceBackgroundSTUN = true
case tailcfg.NodeAttrDisableDeltaUpdates:
disableDeltaUpdates = true
}
}
k.KeepFullWGConfig.Store(keepFullWG)
@ -1328,6 +1344,7 @@ func (ms *mapSession) setControlKnobsFromNodeAttrs(selfNodeAttrs []string) {
k.RandomizeClientPort.Store(randomizeClientPort)
k.OneCGNAT.Store(oneCGNAT)
k.ForceBackgroundSTUN.Store(forceBackgroundSTUN)
k.DisableDeltaUpdates.Store(disableDeltaUpdates)
}
// ipForwardingBroken reports whether the system's IP forwarding is disabled