167 Commits

Author SHA1 Message Date
Will Norris
3ec5be3f51 all: remove AUTHORS file and references to it
This file was never truly necessary and has never actually been used in
the history of Tailscale's open source releases.

A Brief History of AUTHORS files
---

The AUTHORS file was a pattern developed at Google, originally for
Chromium, then adopted by Go and a bunch of other projects. The problem
was that Chromium originally had a copyright line only recognizing
Google as the copyright holder. Because Google (and most open source
projects) do not require copyright assignemnt for contributions, each
contributor maintains their copyright. Some large corporate contributors
then tried to add their own name to the copyright line in the LICENSE
file or in file headers. This quickly becomes unwieldy, and puts a
tremendous burden on anyone building on top of Chromium, since the
license requires that they keep all copyright lines intact.

The compromise was to create an AUTHORS file that would list all of the
copyright holders. The LICENSE file and source file headers would then
include that list by reference, listing the copyright holder as "The
Chromium Authors".

This also become cumbersome to simply keep the file up to date with a
high rate of new contributors. Plus it's not always obvious who the
copyright holder is. Sometimes it is the individual making the
contribution, but many times it may be their employer. There is no way
for the proejct maintainer to know.

Eventually, Google changed their policy to no longer recommend trying to
keep the AUTHORS file up to date proactively, and instead to only add to
it when requested: https://opensource.google/docs/releasing/authors.
They are also clear that:

> Adding contributors to the AUTHORS file is entirely within the
> project's discretion and has no implications for copyright ownership.

It was primarily added to appease a small number of large contributors
that insisted that they be recognized as copyright holders (which was
entirely their right to do). But it's not truly necessary, and not even
the most accurate way of identifying contributors and/or copyright
holders.

In practice, we've never added anyone to our AUTHORS file. It only lists
Tailscale, so it's not really serving any purpose. It also causes
confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header
in other open source repos which don't actually have an AUTHORS file, so
it's ambiguous what that means.

Instead, we just acknowledge that the contributors to Tailscale (whoever
they are) are copyright holders for their individual contributions. We
also have the benefit of using the DCO (developercertificate.org) which
provides some additional certification of their right to make the
contribution.

The source file changes were purely mechanical with:

    git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g'

Updates #cleanup

Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
2026-01-23 15:49:45 -08:00
James Tucker
63d563e734 tsnet: add support for a user-supplied tun.Device
tsnet users can now provide a tun.Device, including any custom
implementation that conforms to the interface.

netstack has a new option CheckLocalTransportEndpoints that when used
alongside a TUN enables netstack listens and dials to correctly capture
traffic associated with those sockets. tsnet with a TUN sets this
option, while all other builds leave this at false to preserve existing
performance.

Updates #18423

Signed-off-by: James Tucker <james@tailscale.com>
2026-01-22 17:29:55 -08:00
Harry Harpham
c062230cce tsnet: clarify that ListenService starts the server if necessary
Every other listen method on tsnet.Server makes this clarification, so
should ListenService.

Fixes tailscale/corp#36207
Signed-off-by: Harry Harpham <harry@tailscale.com>
2026-01-22 13:39:19 -07:00
Harry Harpham
3840183be9 tsnet: add support for Services
This change allows tsnet nodes to act as Service hosts by adding a new
function, tsnet.Server.ListenService. Invoking this function will
advertise the node as a host for the Service and create a listener to
receive traffic for the Service.

Fixes #17697
Fixes tailscale/corp#27200
Signed-off-by: Harry Harpham <harry@tailscale.com>
2026-01-16 15:28:31 -07:00
Mario Minardi
02af7c963c tsnet: allow for automatic ID token generation
Allow for optionally specifiying an audience for tsnet. This is passed
to the underlying identity federation logic to allow for tsnet auth to
use automatic ID token generation for authentication.

Updates https://github.com/tailscale/corp/issues/33316

Signed-off-by: Mario Minardi <mario@tailscale.com>
2026-01-14 09:02:43 -07:00
Danni Popova
6a6aa805d6
cmd,feature: add identity token auto generation for workload identity (#18373)
Adds the ability to detect what provider the client is running on and tries fetch the ID token to use with Workload Identity.

Updates https://github.com/tailscale/corp/issues/33316

Signed-off-by: Danni Popova <danni@tailscale.com>
2026-01-14 15:00:59 +00:00
Harry Harpham
78c8d14254 tsnet: use errors.Join and idiomatic field order
Updates #18376 (follow up on feedback)
Signed-off-by: Harry Harpham <harry@tailscale.com>
2026-01-12 09:34:43 -07:00
Harry Harpham
3c1be083a4 tsnet: ensure funnel listener cleans up after itself when closed
Previously the funnel listener would leave artifacts in the serve
config. This caused weird out-of-sync effects like the admin panel
showing that funnel was enabled for a node, but the node rejecting
packets because the listener was closed.

This change resolves these synchronization issues by ensuring that
funnel listeners clean up the serve config when closed.

See also:
e109cf9fdd

Updates #cleanup
Signed-off-by: Harry Harpham <harry@tailscale.com>
2026-01-09 12:39:55 -07:00
Harry Harpham
f9762064cf tsnet: reset serve config only once
Prior to this change, we were resetting the tsnet's serve config every
time tsnet.Server.Up was run. This is important to do on startup, to
prevent messy interactions with stale configuration when the code has
changed.

However, Up is frequently run as a just-in-case step (for example, by
Server.ListenTLS/ListenFunnel and possibly by consumers of tsnet). When
the serve config is reset on each of these calls to Up, this creates
situations in which the serve config disappears unexpectedly. The
solution is to reset the serve config only on the first call to Up.

Fixes #8800
Updates tailscale/corp#27200
Signed-off-by: Harry Harpham <harry@tailscale.com>
2026-01-09 12:39:55 -07:00
Gesa Stupperich
536188c1b5 tsnet: enable node registration via federated identity
Updates: tailscale.com/corp#34148

Signed-off-by: Gesa Stupperich <gesa@tailscale.com>
2025-12-02 17:47:03 +00:00
Brad Fitzpatrick
653d0738f9 types/netmap: remove PrivateKey from NetworkMap
It's an unnecessary nuisance having it. We go out of our way to redact
it in so many places when we don't even need it there anyway.

Updates #12639

Change-Id: I5fc72e19e9cf36caeb42cf80ba430873f67167c3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-11-16 15:32:51 -08:00
Brad Fitzpatrick
2e381557b8 feature/c2n: move answerC2N code + deps out of control/controlclient
c2n was already a conditional feature, but it didn't have a
feature/c2n directory before (rather, it was using consts + DCE). This
adds it, and moves some code, which removes the httprec dependency.

Also, remove some unnecessary code from our httprec fork.

Updates #12614

Change-Id: I2fbe538e09794c517038e35a694a363312c426a2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-10-04 13:16:49 -07:00
Claus Lensbøl
ce752b8a88
net/netmon: remove usage of direct callbacks from netmon (#17292)
The callback itself is not removed as it is used in other repos, making
it simpler for those to slowly transition to the eventbus.

Updates #15160

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
2025-10-01 14:59:38 -04:00
Brad Fitzpatrick
05a4c8e839 tsnet: remove AuthenticatedAPITransport (API-over-noise) support
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>
2025-10-01 08:13:24 -07:00
Brad Fitzpatrick
442a3a779d feature, net/tshttpproxy: pull out support for using proxies as a feature
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>
2025-09-30 10:25:56 -07:00
David Bond
cc1761e8d2
cmd/k8s-operator: send operator logs to tailscale (#17110)
This commit modifies the k8s operator to wrap its logger using the logtail
logger provided via the tsnet server. This causes any logs written by
the operator to make their way to Tailscale in the same fashion as
wireguard logs to be used by support.

This functionality can also be opted-out of entirely using the
"TS_NO_LOGS_NO_SUPPORT" environment variable.

Updates https://github.com/tailscale/corp/issues/32037

Signed-off-by: David Bond <davidsbond93@gmail.com>
2025-09-22 13:55:16 +01:00
Naman Sood
b9cda4bca5
tsnet,internal/client/tailscale: resolve OAuth into authkeys in tsnet (#17191)
* tsnet,internal/client/tailscale: resolve OAuth into authkeys in tsnet

Updates #8403.

* internal/client/tailscale: omit OAuth library via build tag

Updates #12614.

Signed-off-by: Naman Sood <mail@nsood.in>
2025-09-19 12:31:44 -04:00
Brad Fitzpatrick
99b3f69126 feature/portmapper: make the portmapper & its debugging tools modular
Starting at a minimal binary and adding one feature back...
    tailscaled tailscale combined (linux/amd64)
     30073135  17451704  31543692 omitting everything
    +  480302 +   10258 +  493896 .. add debugportmapper
    +  475317 +  151943 +  467660 .. add portmapper
    +  500086 +  162873 +  510511 .. add portmapper+debugportmapper

Fixes #17148

Change-Id: I90bd0e9d1bd8cbe64fa2e885e9afef8fb5ee74b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-09-16 11:35:49 -07:00
Claus Lensbøl
2015ce4081
health,ipn/ipnlocal: introduce eventbus in heath.Tracker (#17085)
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>
2025-09-16 11:25:29 -04:00
David Bond
cfb2ca724b
tsnet: expose logtail's Logf method (#17057)
This commit adds a new method to the tsnet.Server type named `Logger`
that returns the underlying logtail instance's Logf method.

This is intended to be used within the Kubernetes operator to wrap its
existing logger in a way such that operator specific logs can also be
sent to control for support & debugging purposes.

Updates https://github.com/tailscale/corp/issues/32037

Signed-off-by: David Bond <davidsbond93@gmail.com>
2025-09-12 12:04:39 +01:00
Alex Chan
f4ae81e015
tsnet: remove APIClient() which is deprecated and now unused (#17073)
Updates tailscale/corp#22748

Signed-off-by: Alex Chan <alexc@tailscale.com>
2025-09-09 14:12:08 +01:00
M. J. Fromberger
16bd60f9ca
ipn,tsnet: update AdvertiseTags documentation (#16931)
Instead of referring to groups, which is a term of art for a different entity,
update the doc comments to more accurately describe what tags are in reference
to the policy document.

Updates #cleanup

Change-Id: Iefff6f84981985f834bae7c6a6c34044f53f2ea2
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-08-23 08:07:36 -07:00
Mohammed Naser
fa0e83ab4f
tsnet: add Server.AdvertiseTags option (#15840)
Updates #8531

Change-Id: I9b6653872c66929e692bd592ef3f438430c657b5
Signed-off-by: Valentin Alekseev <valentin.alekseev@gmail.com>
Co-authored-by: Valentin Alekseev <valentin.alekseev@gmail.com>
2025-08-23 02:00:09 -07:00
M. J. Fromberger
55698c8511
ipn/localapi: plumb an event bus through the localapi.Handler (#16892)
Some of the operations of the local API need an event bus to correctly
instantiate other components (notably including the portmapper).

This commit adds that, and as the parameter list is starting to get a bit long
and hard to read, I took the opportunity to move the arguments to a config
type. Only a few call sites needed to be updated and this API is not intended
for general use, so I did not bother to stage the change.

Updates #15160
Updates #16842

Change-Id: I7b057d71161bd859f5acb96e2f878a34c85be0ef
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-08-18 10:56:17 -07:00
Mike O'Driscoll
47b5f10165
cmd/tsidp,tsnet: update tsidp oidc-key store path (#16735)
The tsidp oidc-key.json ended up in the root directory
or home dir of the user process running it.

Update this to store it in a known location respecting
the TS_STATE_DIR and flagDir options.

Fixes #16734

Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
2025-07-31 12:13:36 -04:00
M. J. Fromberger
b34cdc9710
ipn,net,tsnet,wgengine: make an eventbus mandatory where it is used (#16594)
In the components where an event bus is already plumbed through, remove the
exceptions that allow it to be omitted, and update all the tests that relied on
those workarounds execute properly.

This change applies only to the places where we're already using the bus; it
does not enforce the existence of a bus in other components (yet),

Updates #15160

Change-Id: Iebb92243caba82b5eb420c49fc3e089a77454f65
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-07-29 09:04:08 -07:00
M. J. Fromberger
36df320e6a
tsnet: remove an expired configuration-path migration step (#16120)
As note in the comment, it now being more than six months since this was
deprecated and there being no (further) uses of the old pattern in our internal
services, let's drop the migrator.

Updates #cleanup

Change-Id: Ie4fb9518b2ca04a9b361e09c51cbbacf1e2633a8
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-05-28 14:12:24 -07:00
Brad Fitzpatrick
7cc2837594 tsnet: don't depend on condregister & its default tailscaled features
None of them are applicable to the common tsnet use cases.

If somebody wants one of them, they can empty import it.

Updates #12614

Change-Id: I3d7f74b555eed22e05a09ad667e4572a5bc452d8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-05-07 07:23:10 -07:00
Brad Fitzpatrick
ab2deda4b7 tsnet: add FunnelTLSConfig FunnelOption type
And also validate opts for unknown types, before other side effects.

Fixes #15833

Change-Id: I4cabe16c49c5b7566dcafbec59f2cd1e0c8b4b3c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-04-30 10:36:35 -07:00
David Anderson
5399fa159a net/netmon: publish events to event bus
Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
2025-04-16 10:10:45 -07:00
M. J. Fromberger
deb0b255ff all: update the tsd.System constructor name (#15372)
Replace NewSystemWithEventBus with plain NewSystem, and update all usage.
See https://github.com/tailscale/tailscale/pull/15355#discussion_r2003910766

Updates #15160

Change-Id: I64d337f09576b41d9ad78eba301a74b9a9d6ebf4
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-04-16 10:10:45 -07:00
M. J. Fromberger
bcd6a0d0ac tsnet: shut down the event bus on Close
Updates #15160

Change-Id: I29c8194b4b41e95848e5f160e9970db352588449
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-04-16 10:10:45 -07:00
M. J. Fromberger
ffb22ee353 all: construct new System values with an event bus pre-populated
Although, at the moment, we do not yet require an event bus to be present, as
we start to add more pieces we will want to ensure it is always available.  Add
a new constructor and replace existing uses of new(tsd.System) throughout.
Update generated files for import changes.

Updates #15160

Change-Id: Ie5460985571ade87b8eac8b416948c7f49f0f64b
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-04-16 10:10:45 -07:00
James Nugent
75373896c7 tsnet: Default executable name on iOS
When compiled into TailscaleKit.framework (via the libtailscale
repository), os.Executable() returns an error instead of the name of the
executable. This commit adds another branch to the switch statement that
enumerates platforms which behave in this manner, and defaults to
"tsnet" in the same manner as those other platforms.

Fixes #15410.

Signed-off-by: James Nugent <james@jen20.com>
2025-03-25 15:28:35 -07:00
Fran Bull
5ebc135397 tsnet,wgengine: fix src to primary Tailscale IP for TCP dials
Ensure that the src address for a connection is one of the primary
addresses assigned by Tailscale. Not, for example, a virtual IP address.

Updates #14667

Signed-off-by: Fran Bull <fran@tailscale.com>
2025-03-11 13:11:01 -07:00
Percy Wegmann
052eefbcce tsnet: require I_Acknowledge_This_API_Is_Experimental to use AuthenticatedAPITransport()
It's not entirely clear whether this capability will be maintained, or in what form,
so this serves as a warning to that effect.

Updates tailscale/corp#22748

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2025-02-18 10:23:04 -06:00
Percy Wegmann
8a792ab540 tsnet: provide AuthenticatedAPITransport for use with tailscale.com/client/tailscale/v2
This allows use of the officially supported control server API,
authenticated with the tsnet node's nodekey.

Updates tailscale/corp#22748

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2025-02-18 10:23:04 -06:00
Percy Wegmann
4f0222388a cmd,tsnet,internal/client: create internal shim to deprecated control plane API
Even after we remove the deprecated API, we will want to maintain a minimal
API for internal use, in order to avoid importing the external
tailscale.com/client/tailscale/v2 package. This shim exposes only the necessary
parts of the deprecated API for internal use, which gains us the following:

1. It removes deprecation warnings for internal use of the API.
2. It gives us an inventory of which parts we will want to keep for internal use.

Updates tailscale/corp#22748

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2025-02-18 10:23:04 -06:00
Brad Fitzpatrick
05ac21ebe4 all: use new LocalAPI client package location
It was moved in f57fa3cbc30e.

Updates tailscale/corp#22748

Change-Id: I19f965e6bded1d4c919310aa5b864f2de0cd6220
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-02-05 14:41:42 -08:00
Nick Khyl
9726e1f208 ipn/{ipnserver,localapi},tsnet: use ipnauth.Self as the actor in tsnet localapi handlers
With #14843 merged, (*localapi.Handler).servePrefs() now requires a non-nil actor,
and other places may soon require it as well.

In this PR, we update localapi.NewHandler with a new required parameter for the actor.
We then update tsnet to use ipnauth.Self.

We also rearrange the code in (*ipnserver.Server).serveHTTP() to pass the actor via Handler's
constructor instead of the field.

Updates #14823

Signed-off-by: Nick Khyl <nickk@tailscale.com>
2025-02-04 16:37:30 -06:00
Anton Tolchanov
3abfbf50ae tsnet: return from Accept when the listener gets closed
Fixes #14808

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2025-01-28 14:02:36 +00:00
Brad Fitzpatrick
1562a6f2f2 feature/*: make Wake-on-LAN conditional, start supporting modular features
This pulls out the Wake-on-LAN (WoL) code out into its own package
(feature/wakeonlan) that registers itself with various new hooks
around tailscaled.

Then a new build tag (ts_omit_wakeonlan) causes the package to not
even be linked in the binary.

Ohter new packages include:

   * feature: to just record which features are loaded. Future:
     dependencies between features.
   * feature/condregister: the package with all the build tags
     that tailscaled, tsnet, and the Tailscale Xcode project
     extension can empty (underscore) import to load features
     as a function of the defined build tags.

Future commits will move of our "ts_omit_foo" build tags into this
style.

Updates #12614

Change-Id: I9c5378dafb1113b62b816aabef02714db3fc9c4a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-01-22 17:16:15 -08:00
Brad Fitzpatrick
b50d32059f tsnet: block in Server.Dial until backend is Running
Updates #14715

Change-Id: I8c91e94fd1c6278c7f94a6b890274ed8a01e6f25
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-01-21 10:57:07 -08:00
Brad Fitzpatrick
7f3c1932b5 tsnet: fix panic on race between listener.Close and incoming packet
I saw this panic while writing a new test for #14715:

    panic: send on closed channel

    goroutine 826 [running]:
    tailscale.com/tsnet.(*listener).handle(0x1400031a500, {0x1035fbb00, 0x14000b82300})
            /Users/bradfitz/src/tailscale.com/tsnet/tsnet.go:1317 +0xac
    tailscale.com/wgengine/netstack.(*Impl).acceptTCP(0x14000204700, 0x14000882100)
            /Users/bradfitz/src/tailscale.com/wgengine/netstack/netstack.go:1320 +0x6dc
    created by gvisor.dev/gvisor/pkg/tcpip/transport/tcp.(*Forwarder).HandlePacket in goroutine 807
            /Users/bradfitz/go/pkg/mod/gvisor.dev/gvisor@v0.0.0-20240722211153-64c016c92987/pkg/tcpip/transport/tcp/forwarder.go:98 +0x32c
    FAIL    tailscale.com/tsnet     0.927s

Updates #14715

Change-Id: I9924e0a6c2b801d46ee44eb8eeea0da2f9ea17c4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-01-21 10:32:58 -08:00
Joe Tsai
b62a013ecb
Switch logging service from log.tailscale.io to log.tailscale.com (#14398)
Updates tailscale/corp#23617

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2024-12-16 14:53:34 -08:00
Brad Fitzpatrick
4e0fc037e6 all: use iterators over slice views more
This gets close to all of the remaining ones.

Updates #12912

Change-Id: I9c672bbed2654a6c5cab31e0cbece6c107d8c6fa
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2024-11-11 13:22:34 -08:00
Brad Fitzpatrick
d4222fae95 tsnet: add accessor to get tsd.System
Pulled of otherwise unrelated PR #13884.

Updates tailscale/corp#22075

Change-Id: I5b539fcb4aca1b93406cf139c719a5e3c64ff7f7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2024-11-03 09:58:38 -08:00
Brad Fitzpatrick
634cc2ba4a wgengine/netstack: remove unused taildrive deps
A filesystem was plumbed into netstack in 993acf4475b22d693
but hasn't been used since 2d5d6f5403f3. Remove it.

Noticed while rebasing a Tailscale fork elsewhere.

Updates tailscale/corp#16827

Change-Id: Ib76deeda205ffe912b77a59b9d22853ebff42813
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2024-11-01 13:40:46 -07:00
Percy Wegmann
f9949cde8b client/tailscale,cmd/{cli,get-authkey,k8s-operator}: set distinct User-Agents
This helps better distinguish what is generating activity to the
Tailscale public API.

Updates tailscale/corp#23838

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2024-10-11 10:45:03 -05:00
Kristoffer Dalby
0e0e53d3b3 util/usermetrics: make usermetrics non-global
this commit changes usermetrics to be non-global, this is a building
block for correct metrics if a go process runs multiple tsnets or
in tests.

Updates #13420
Updates tailscale/corp#22075

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
2024-09-25 15:57:00 +02:00