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tailscale/control
Jordan Whited 8b47322acc
wgengine/magicsock: implement probing of UDP path lifetime (#10844)
This commit implements probing of UDP path lifetime on the tail end of
an active direct connection. Probing configuration has two parts -
Cliffs, which are various timeout cliffs of interest, and
CycleCanStartEvery, which limits how often a probing cycle can start,
per-endpoint. Initially a statically defined default configuration will
be used. The default configuration has cliffs of 10s, 30s, and 60s,
with a CycleCanStartEvery of 24h. Probing results are communicated via
clientmetric counters. Probing is off by default, and can be enabled
via control knob. Probing is purely informational and does not yet
drive any magicsock behaviors.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
10 months ago
..
controlbase all: cleanup unused code, part 2 (#10670) 11 months ago
controlclient control/controlclient,util/execqueue: extract execqueue into a package 10 months ago
controlhttp net/wsconn: accept a remote addr string and plumb it through 1 year ago
controlknobs wgengine/magicsock: implement probing of UDP path lifetime (#10844) 10 months ago