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tailscale/ipn/localapi
Nick Khyl f1c7b463cd ipn/{ipnauth,ipnlocal,localapi}: make EditPrefs return an error if changing exit node is restricted by policy
We extract checkEditPrefsAccessLocked, adjustEditPrefsLocked, and onEditPrefsLocked from the EditPrefs
execution path, defining when each step is performed and what behavior is allowed at each stage.

Currently, this is primarily used to support Always On mode, to handle the Exit Node enablement toggle,
and to report prefs edit metrics.

We then use it to enforce Exit Node policy settings by preventing users from setting an exit node
and making EditPrefs return an error when an exit node is restricted by policy. This enforcement is also
extended to the Exit Node toggle.

These changes prepare for supporting Exit Node overrides when permitted by policy and preventing logout
while Always On mode is enabled.

In the future, implementation of these methods can be delegated to ipnext extensions via the feature hooks.

Updates tailscale/corp#29969
Updates tailscale/corp#26249

Signed-off-by: Nick Khyl <nickk@tailscale.com>
5 months ago
..
cert.go cmd/tailscale: add --min-validity flag to the cert command (#12822) 1 year ago
debugderp.go derp/derphttp,ipn/localapi,net/captivedetection: add cache resistance to captive portal detection 10 months ago
disabled_stubs.go all: update copyright and license headers 3 years ago
localapi.go ipn/{ipnauth,ipnlocal,localapi}: make EditPrefs return an error if changing exit node is restricted by policy 5 months ago
localapi_test.go net/netmon: publish events to event bus 8 months ago
pprof.go all: update copyright and license headers 3 years ago