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f5eac39ea7
The ACME serialization mutex (acmeMu) was a package-level global, and
several ACME-related fields lived on LocalBackend even though the
cert code is conditional and not linked into every binary. With
multiple tsnet.Servers in one process (each its own LocalBackend),
a process-wide acmeMu also serialized unrelated backends.
Introduce a new feature/acme extension that owns the per-LocalBackend
ACME/cert state in an ipnlocal.CertState value:
- acmeMu, renewMu, renewCertAt (previously package globals)
- pendingACMETLSALPNCerts, pendingCertDomains{,Mu},
getCertForTest, certRefreshCancel (previously LocalBackend
fields, only meaningful when ACME was compiled in)
ipnlocal/cert.go now reaches the state through b.certState(), which
is routed by a feature.Hook installed at init by feature/acme. The
CertState type lives in ipnlocal so cert.go can access its fields
directly without a method explosion; the extension in feature/acme
constructs and owns it.
This is a baby step. The end goal is for the entire cert/ACME code
to live in feature/acme, with ipnlocal only retaining whatever thin
hooks the rest of LocalBackend needs to call into it. The current
split (CertState and most of cert.go in ipnlocal, extension wrapper
in feature/acme) is a deliberately temporary middle ground that
keeps this PR small while making the next moves mechanical.
The package is named feature/acme to match the existing HasACME /
ts_omit_acme naming. condregister/maybe_acme.go wires it in for
non-js builds.
Updates #12614
Updates #20248
Updates #20249
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I520909f24ad11a9622ef33c2290fe36ad44d6f71
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| .. | ||
| ace | ||
| acme | ||
| appconnectors | ||
| awsparamstore | ||
| buildfeatures | ||
| c2n | ||
| capture | ||
| clientupdate | ||
| condlite/expvar | ||
| condregister | ||
| conn25 | ||
| debugportmapper | ||
| doctor | ||
| drive | ||
| featuretags | ||
| identityfederation | ||
| linkspeed | ||
| linuxdnsfight | ||
| oauthkey | ||
| portlist | ||
| portmapper | ||
| posture | ||
| relayserver | ||
| routecheck | ||
| runtimemetrics | ||
| sdnotify | ||
| ssh | ||
| syspolicy | ||
| taildrop | ||
| tailnetlock | ||
| tap | ||
| tpm | ||
| tundevstats | ||
| useproxy | ||
| wakeonlan | ||
| feature.go | ||
| hooks.go | ||
| sdnotify.go | ||