It never launched and I've lost hope of it launching and it's in my
way now, so I guess it's time to say goodbye.
Updates tailscale/corp#4383
Updates #17305
Change-Id: I2eb551d49f2fb062979cc307f284df4b3dfa5956
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This permits other programs (in other repos) to conditionally
import ipn/store/awsstore and/or ipn/store/kubestore and have them
register themselves, rather than feature/condregister doing it.
Updates tailscale/corp#32922
Change-Id: I2936229ce37fd2acf9be5bf5254d4a262d090ec1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The `put` callback runs on a different goroutine to the test, so calling
t.Fatalf in put had no effect. `drain` is always called when checking what
was put and is called from the test goroutine, so that's a good place to
fail the test if the channel was too full.
Updates #17363
Signed-off-by: James Sanderson <jsanderson@tailscale.com>
Saves 442 KB. Lock it with a new min test.
Updates #12614
Change-Id: Ia7bf6f797b6cbf08ea65419ade2f359d390f8e91
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Saves 139 KB.
Also Synology support, which I saw had its own large-ish proxy parsing
support on Linux, but support for proxies without Synology proxy
support is reasonable, so I pulled that out as its own thing.
Updates #12614
Change-Id: I22de285a3def7be77fdcf23e2bec7c83c9655593
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
In Dec 2021 in d3d503d997 I had grand plans to make exit node DNS
cheaper by using HTTP/2 over PeerAPI, at least on some platforms. I
only did server-side support though and never made it to the client.
In the ~4 years since, some things have happened:
* Go 1.24 got support for http.Protocols (https://pkg.go.dev/net/http#Protocols)
and doing UnencryptedHTTP2 ("HTTP2 with prior knowledge")
* The old h2c upgrade mechanism was deprecated; see https://github.com/golang/go/issues/63565
and https://github.com/golang/go/issues/67816
* Go plans to deprecate x/net/http2 and move everything to the standard library.
So this drops our use of the x/net/http2/h2c package and instead
enables h2c (on all platforms now) using the standard library.
This does mean we lose the deprecated h2c Upgrade support, but that's
fine.
If/when we do the h2c client support for ExitDNS, we'll have to probe
the peer to see whether it supports it. Or have it reply with a header
saying that future requests can us h2c. (It's tempting to use capver,
but maybe people will disable that support anyway, so we should
discover it at runtime instead.)
Also do the same in the sessionrecording package.
Updates #17305
Change-Id: If323f5ef32486effb18ed836888aa05c0efb701e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Saves 328 KB (2.5%) off the minimal binary.
For IoT devices that don't need MagicDNS (e.g. they don't make
outbound connections), this provides a knob to disable all the DNS
functionality.
Rather than a massive refactor today, this uses constant false values
as a deadcode sledgehammer, guided by shotizam to find the largest DNS
functions which survived deadcode.
A future refactor could make it so that the net/dns/resolver and
publicdns packages don't even show up in the import graph (along with
their imports) but really it's already pretty good looking with just
these consts, so it's not at the top of my list to refactor it more
soon.
Also do the same in a few places with the ACME (cert) functionality,
as I saw those while searching for DNS stuff.
Updates #12614
Change-Id: I8e459f595c2fde68ca16503ff61c8ab339871f97
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Otherwise they're uselessly imported by tsnet applications, even
though they do nothing. tsnet applications wanting to use these
already had to explicitly import them and use kubestore.New or
awsstore.New and assign those to their tsnet.Server.Store fields.
Updates #12614
Change-Id: I358e3923686ddf43a85e6923c3828ba2198991d4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Allow the user to access information about routes an app connector has
learned, such as how many routes for each domain.
Fixestailscale/corp#32624
Signed-off-by: Fran Bull <fran@tailscale.com>
Removes 434 KB from the minimal Linux binary, or ~3%.
Primarily this comes from not linking in the zstd encoding code.
Fixes#17323
Change-Id: I0a90de307dfa1ad7422db7aa8b1b46c782bfaaf7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
It has nothing to do with logtail and is confusing named like that.
Updates #cleanup
Updates #17323
Change-Id: Idd34587ba186a2416725f72ffc4c5778b0b9db4a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The dnstype package is used by tailcfg, which tries to be light and
leafy. But it brings in dnstype. So dnstype shouldn't bring in
x/net/dns/dnsmessage.
Updates #12614
Change-Id: I043637a7ce7fed097e648001f13ca1927a781def
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
A customer wants to allow their employees to restart tailscaled at will, when access rights and MDM policy allow it,
as a way to fully reset client state and re-create the tunnel in case of connectivity issues.
On Windows, the main tailscaled process runs as a child of a service process. The service restarts the child
when it exits (or crashes) until the service itself is stopped. Regular (non-admin) users can't stop the service,
and allowing them to do so isn't ideal, especially in managed or multi-user environments.
In this PR, we add a LocalAPI endpoint that instructs ipnserver.Server, and by extension the tailscaled process,
to shut down. The service then restarts the child tailscaled. Shutting down tailscaled requires LocalAPI write access
and an enabled policy setting.
Updates tailscale/corp#32674
Updates tailscale/corp#32675
Signed-off-by: Nick Khyl <nickk@tailscale.com>
And yay: tsnet (and thus k8s-operator etc) no longer depends on
portlist! And LocalBackend is smaller.
Removes 50 KB from the minimal binary.
Updates #12614
Change-Id: Iee04057053dc39305303e8bd1d9599db8368d926
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We made changes to ipnext callback registration/unregistration/invocation in #15780
that made resetting b.exthost to a nil, no-op host in (*LocalBackend).Shutdown() unnecessary.
But resetting it is also racy: b.exthost must be safe for concurrent use with or without b.mu held,
so it shouldn't be written after NewLocalBackend returns. This PR removes it.
Fixes#17279
Signed-off-by: Nick Khyl <nickk@tailscale.com>
I think this was originally a brain-o in 9380e2dfc6. It's
disabling the port _poller_, listing what open ports (i.e. services)
are open, not PMP/PCP/UPnP port mapping.
While there, drop in some more testenv.AssertInTest() in a few places.
Updates #cleanup
Change-Id: Ia6f755ad3544f855883b8a7bdcfc066e8649547b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This exports a number of things from the derp (generic + client) package
to be used by the new derpserver package, as now used by cmd/derper.
And then enough other misc changes to lock in that cmd/tailscaled can
be configured to not bring in tailscale.com/client/local. (The webclient
in particular, even when disabled, was bringing it in, so that's now fixed)
Fixes#17257
Change-Id: I88b6c7958643fb54f386dd900bddf73d2d4d96d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Help out the linker's dead code elimination.
Updates #12614
Change-Id: I6c13cb44d3250bf1e3a01ad393c637da4613affb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This doesn't yet fully pull it out into a feature/captiveportal package.
This is the usual first step, moving the code to its own files within
the same packages.
Updates #17254
Change-Id: Idfaec839debf7c96f51ca6520ce36ccf2f8eec92
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit does not change the order or meaning of any eventbus activity, it
only updates the way the plumbing is set up.
Updates #15160
Change-Id: I06860ac4e43952a9bb4d85366138c9d9a17fd9cd
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
We never implemented the peercred package on OpenBSD (and I just tried
again and failed), but we've always documented that the creds pointer
can be nil for operating systems where we can't map the unix socket
back to its UID. On those platforms, we set the default unix socket
permissions such that only the admin can open it anyway and we don't
have a read-only vs read-write distinction. OpenBSD was always in that
camp, where any access to Tailscale's unix socket meant full access.
But during some refactoring, we broke OpenBSD in that we started
assuming during one logging path (during login) that Creds was non-nil
when looking up an ipnauth.Actor's username, which wasn't relevant (it
was called from a function "maybeUsernameOf" anyway, which threw away
errors).
Verified on an OpenBSD VM. We don't have any OpenBSD integration tests yet.
Fixes#17209
Updates #17221
Change-Id: I473c5903dfaa645694bcc75e7f5d484f3dd6044d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit does not change the order or meaning of any eventbus activity, it
only updates the way the plumbing is set up.
Updates #15160
Change-Id: I0a175e67e867459daaedba0731bf68bd331e5ebc
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
Expand TestRedactNetmapPrivateKeys to cover all sub-structs of
NetworkMap and confirm that a) all fields are annotated as private or
public, and b) all private fields are getting redacted.
Updates tailscale/corp#32095
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
For debugging purposes, add a new C2N endpoint returning the current
netmap. Optionally, coordination server can send a new "candidate" map
response, which the client will generate a separate netmap for.
Coordination server can later compare two netmaps, detecting unexpected
changes to the client state.
Updates tailscale/corp#32095
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
Previously, seamless key renewal was an opt-in feature. Customers had
to set a `seamless-key-renewal` node attribute in their policy file.
This patch enables seamless key renewal by default for all clients.
It includes a `disable-seamless-key-renewal` node attribute we can set
in Control, so we can manage the rollout and disable the feature for
clients with known bugs. This new attribute makes the feature opt-out.
Updates tailscale/corp#31479
Signed-off-by: Alex Chan <alexc@tailscale.com>
This makes things work slightly better over the eventbus.
Also switches ipnlocal to use the event over the eventbus instead of the
direct callback.
Updates #15160
Signed-off-by: Claus Lensbøl <claus@tailscale.com>
I'd started to do this in the earlier ts_omit_server PR but
decided to split it into this separate PR.
Updates #17128
Change-Id: Ief8823a78d1f7bbb79e64a5cab30a7d0a5d6ff4b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Instead of waiting for a designated subscription to close as a canary for the
bus being stopped, use the bus Client's own signal for closure added in #17118.
Updates #cleanup
Change-Id: I384ea39f3f1f6a030a6282356f7b5bdcdf8d7102
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
The Tracker was using direct callbacks to ipnlocal. This PR moves those
to be triggered via the eventbus.
Additionally, the eventbus is now closed on exit from tailscaled
explicitly, and health is now a SubSystem in tsd.
Updates #15160
Signed-off-by: Claus Lensbøl <claus@tailscale.com>
This is a small introduction of the eventbus into controlclient that
communicates with mainly ipnlocal. While ipnlocal is a complicated part
of the codebase, the subscribers here are from the perspective of
ipnlocal already called async.
Updates #15160
Signed-off-by: Claus Lensbøl <claus@tailscale.com>
Brad Fitzpatrick
James Sanderson
Nick Khyl
Fran Bull
M. J. Fromberger
Anton Tolchanov
Alex Chan
Claus Lensbøl