tailscale/control/controlknobs/controlknobs.go, branch bradfitz/sessionactivetimeout

wgengine/magicsock: add controlknob tunable for session timeout experiments

2023-10-06T13:59:17Z

Updates #TODO Change-Id: Ifb7ee2b69545cbc457aa2bf4c4744f431edb36e2 Signed-off-by: Brad Fitzpatrick

net/dns: retry forwarder requests over TCP

2023-09-25T20:42:07Z

We weren't correctly retrying truncated requests to an upstream DNS server with TCP. Instead, we'd return a truncated request to the user, even if the user was querying us over TCP and thus able to handle a large response. Also, add an envknob and controlknob to allow users/us to disable this behaviour if it turns out to be buggy (✨ DNS ✨). Updates #9264 Signed-off-by: Andrew Dunham Change-Id: Ifb04b563839a9614c0ba03e9c564e8924c1a2bfd

control,tailcfg,wgengine/magicsock: add nodeAttr to enable/disable peer MTU

2023-09-21T11:17:12Z

Add a nodeAttr to enable/disable peer path MTU discovery. Updates #311 Signed-off-by: Val

tailcfg: add NodeCapMap

2023-09-18T19:00:34Z

Like PeerCapMap, add a field to `tailcfg.Node` which provides a map of Capability to raw JSON messages which are deferred to be parsed later by the application code which cares about the specific capabilities. This effectively allows us to prototype new behavior without having to commit to a schema in tailcfg, and it also opens up the possibilities to develop custom behavior in tsnet applications w/o having to plumb through application specific data in the MapResponse. Updates #4217 Signed-off-by: Maisem Ali

tailcfg: define a type for NodeCapability

2023-09-17T20:16:29Z

Instead of untyped string, add a type to identify these. Updates #cleanup Signed-off-by: Maisem Ali

control/controlknobs: move more controlknobs code from controlclient

2023-09-12T19:44:35Z

Updates #cleanup Change-Id: I2b8b6ac97589270f307bfb20e33674894ce873b5 Signed-off-by: Brad Fitzpatrick

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

2023-09-12T19:23:24Z

Currently only the top four most popular changes: endpoints, DERP home, online, and LastSeen. Updates #1909 Change-Id: I03152da176b2b95232b56acabfb55dcdfaa16b79 Signed-off-by: Brad Fitzpatrick

ipn/ipnlocal: fix missing controlknobs.Knobs plumbing

2023-09-12T13:17:14Z

I missed connecting some controlknobs.Knobs pieces in 4e91cf20a854 resulting in that breaking control knobs entirely. Whoops. The fix in ipn/ipnlocal (where it makes a new controlclient) but to atone, I also added integration tests. Those integration tests use a new "tailscale debug control-knobs" which by itself might be useful for future debugging. Updates #9351 Change-Id: Id9c89c8637746d879d5da67b9ac4e0d2367a3f0d Signed-off-by: Brad Fitzpatrick

control/controlknobs: move ForceBackgroundSTUN to controlknobs.Knobs

2023-09-12T01:11:09Z

This is both more efficient (because the knobs' bool is only updated whenever Node is changed, rarely) and also gets us one step closer to removing a case of storing a netmap.NetworkMap in magicsock. (eventually we want to phase out much of the use of that type internally) Updates #1909 Change-Id: I37e81789f94133175064fdc09984e4f3a431f1a1 Signed-off-by: Brad Fitzpatrick

control/controlknobs, all: add plumbed Knobs type, not global variables

2023-09-11T19:44:03Z

Previously two tsnet nodes in the same process couldn't have disjoint sets of controlknob settings from control as both would overwrite each other's global variables. This plumbs a new controlknobs.Knobs type around everywhere and hangs the knobs sent by control on that instead. Updates #9351 Change-Id: I75338646d36813ed971b4ffad6f9a8b41ec91560 Signed-off-by: Brad Fitzpatrick