This allows fetching auth keys, OAuth client secrets, and ID tokens (for
workload identity federation) from AWS Parameter Store by passing an ARN
as the value. This is a relatively low-overhead mechanism for fetching
these values from an external secret store without needing to run a
secret service.
Usage examples:
# Auth key
tailscale up \
--auth-key=arn:aws:ssm:us-east-1:123456789012:parameter/tailscale/auth-key
# OAuth client secret
tailscale up \
--client-secret=arn:aws:ssm:us-east-1:123456789012:parameter/tailscale/oauth-secret \
--advertise-tags=tag:server
# ID token (for workload identity federation)
tailscale up \
--client-id=my-client \
--id-token=arn:aws:ssm:us-east-1:123456789012:parameter/tailscale/id-token \
--advertise-tags=tag:server
Updates tailscale/corp#28792
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
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>
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>
Add support for authenticating the gitops-pusher using workload identity
federation.
Updates https://github.com/tailscale/corp/issues/34172
Signed-off-by: Mario Minardi <mario@tailscale.com>
Add new arguments to `tailscale up` so authkeys can be generated dynamically via identity federation.
Updates #9192
Signed-off-by: mcoulombe <max@tailscale.com>
A following change will split out the controlclient.NoiseClient type
out, away from the rest of the controlclient package which is
relatively dependency heavy.
A question was where to move it, and whether to make a new (a fifth!)
package in the ts2021 dependency chain.
@creachadair and I brainstormed and decided to merge
internal/noiseconn and controlclient.NoiseClient into one package,
with names ts2021.Conn and ts2021.Client.
For ease of reviewing the subsequent PR, this is the first step that
just renames the internal/noiseconn package to control/ts2021.
Updates #17305
Change-Id: Ib5ea162dc1d336c1d805bdd9548d1702dd6e1468
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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>
* 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>
Adds a new reconciler for ProxyGroups of type kube-apiserver that will
provision a Tailscale Service for each replica to advertise. Adds two
new condition types to the ProxyGroup, TailscaleServiceValid and
TailscaleServiceConfigured, to post updates on the state of that
reconciler in a way that's consistent with the service-pg reconciler.
The created Tailscale Service name is configurable via a new ProxyGroup
field spec.kubeAPISserver.ServiceName, which expects a string of the
form "svc:<dns-label>".
Lots of supporting changes were needed to implement this in a way that's
consistent with other operator workflows, including:
* Pulled containerboot's ensureServicesUnadvertised and certManager into
kube/ libraries to be shared with k8s-proxy. Use those in k8s-proxy to
aid Service cert sharing between replicas and graceful Service shutdown.
* For certManager, add an initial wait to the cert loop to wait until
the domain appears in the devices's netmap to avoid a guaranteed error
on the first issue attempt when it's quick to start.
* Made several methods in ingress-for-pg.go and svc-for-pg.go into
functions to share with the new reconciler
* Added a Resource struct to the owner refs stored in Tailscale Service
annotations to be able to distinguish between Ingress- and ProxyGroup-
based Services that need cleaning up in the Tailscale API.
* Added a ListVIPServices method to the internal tailscale client to aid
cleaning up orphaned Services
* Support for reading config from a kube Secret, and partial support for
config reloading, to prevent us having to force Pod restarts when
config changes.
* Fixed up the zap logger so it's possible to set debug log level.
Updates #13358
Change-Id: Ia9607441157dd91fb9b6ecbc318eecbef446e116
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
Switch from using the Comment field to a ts-scoped annotation for
tracking which operators are cooperating over ownership of a
VIPService.
Updates tailscale/corp#24795
Change-Id: I72d4a48685f85c0329aa068dc01a1a3c749017bf
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
This will allow Client to be extended with additional functions for internal use.
Updates tailscale/corp#22748
Signed-off-by: Percy Wegmann <percy@tailscale.com>
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>
This actually performs a Noise request in the 'debug ts2021' command,
instead of just exiting once we've dialed a connection. This can help
debug certain forms of captive portals and deep packet inspection that
will allow a connection, but will RST the connection when trying to send
data on the post-upgraded TCP connection.
Updates #1634
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1e46ca9c9a0751c55f16373a6a76cdc24fec1f18
So that it can be later used in the 'tailscale debug ts2021' function in
the CLI, to aid in debugging captive portals/WAFs/etc.
Updates #1634
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Iec9423f5e7570f2c2c8218d27fc0902137e73909
This adds an initial and intentionally minimal configuration for
golang-ci, fixes the issues reported, and adds a GitHub Action to check
new pull requests against this linter configuration.
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8f38fbc315836a19a094d0d3e986758b9313f163
This updates all source files to use a new standard header for copyright
and license declaration. Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.
This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.
Updates #6865
Signed-off-by: Will Norris <will@tailscale.com>
The //go:build syntax was introduced in Go 1.17:
https://go.dev/doc/go1.17#build-lines
gofmt has kept the +build and go:build lines in sync since
then, but enough time has passed. Time to remove them.
Done with:
perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build')
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Running hex.Encode(b, b) is a bad idea.
The first byte of input will overwrite the first two bytes of output.
Subsequent bytes have no impact on the output.
Not related to today's IPv6 bug, but...wh::ps.
This caused us to spuriously ignore some wireguard config updates.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
e66d4e4c81 added AppendTo methods
to some key types. Their marshaled form is longer than 64 bytes.
name old time/op new time/op delta
Hash-8 15.5µs ± 1% 14.8µs ± 1% -4.17% (p=0.000 n=9+9)
name old alloc/op new alloc/op delta
Hash-8 1.18kB ± 0% 0.47kB ± 0% -59.87% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
Hash-8 12.0 ± 0% 6.0 ± 0% -50.00% (p=0.000 n=10+10)
This is still a bit worse than explicitly handling the types,
but much nicer.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
All netaddr types that we are concerned with now implement AppendTo.
Use the AppendTo method if available, and remove all references to netaddr.
This is slower but cleaner, and more readily re-usable by others.
name old time/op new time/op delta
Hash-8 12.6µs ± 0% 14.8µs ± 1% +18.05% (p=0.000 n=8+10)
HashMapAcyclic-8 21.4µs ± 1% 21.9µs ± 1% +2.39% (p=0.000 n=10+9)
name old alloc/op new alloc/op delta
Hash-8 408B ± 0% 408B ± 0% ~ (p=1.000 n=10+10)
HashMapAcyclic-8 1.00B ± 0% 1.00B ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
Hash-8 6.00 ± 0% 6.00 ± 0% ~ (all equal)
HashMapAcyclic-8 0.00 0.00 ~ (all equal)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
These exist so we can use the optimized MapIter APIs
while still working with released versions of Go.
They're pretty simple, but some docs won't hurt.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
Reduce to just a single external endpoint.
Convert from a variadic number of interfaces to a slice there.
name old time/op new time/op delta
Hash-8 14.4µs ± 0% 14.0µs ± 1% -3.08% (p=0.000 n=9+9)
name old alloc/op new alloc/op delta
Hash-8 873B ± 0% 793B ± 0% -9.16% (p=0.000 n=9+6)
name old allocs/op new allocs/op delta
Hash-8 18.0 ± 0% 14.0 ± 0% -22.22% (p=0.000 n=10+10)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
Slightly slower, but lots less garbage.
We will recover the speed lost in a follow-up commit.
name old time/op new time/op delta
Hash-8 13.5µs ± 1% 14.3µs ± 0% +5.84% (p=0.000 n=10+9)
name old alloc/op new alloc/op delta
Hash-8 1.46kB ± 0% 0.87kB ± 0% -40.10% (p=0.000 n=7+10)
name old allocs/op new allocs/op delta
Hash-8 43.0 ± 0% 18.0 ± 0% -58.14% (p=0.000 n=10+10)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
This requires changes to the Go toolchain.
The changes are upstream at https://golang.org/cl/320929.
They haven't been pulled into our fork yet.
No need to allocate new iteration scratch values for every map.
name old time/op new time/op delta
Hash-8 13.6µs ± 0% 13.5µs ± 0% -1.01% (p=0.008 n=5+5)
HashMapAcyclic-8 21.2µs ± 1% 21.1µs ± 2% ~ (p=0.310 n=5+5)
name old alloc/op new alloc/op delta
Hash-8 1.58kB ± 0% 1.46kB ± 0% -7.60% (p=0.008 n=5+5)
HashMapAcyclic-8 152B ± 0% 128B ± 0% -15.79% (p=0.008 n=5+5)
name old allocs/op new allocs/op delta
Hash-8 49.0 ± 0% 43.0 ± 0% -12.24% (p=0.008 n=5+5)
HashMapAcyclic-8 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.008 n=5+5)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
To get the benefit of this optimization requires help from the Go toolchain.
The changes are upstream at https://golang.org/cl/320929,
and have been pulled into the Tailscale fork at
728ecc58fd.
It also requires building with the build tag tailscale_go.
name old time/op new time/op delta
Hash-8 14.0µs ± 0% 13.6µs ± 0% -2.88% (p=0.008 n=5+5)
HashMapAcyclic-8 24.3µs ± 1% 21.2µs ± 1% -12.47% (p=0.008 n=5+5)
name old alloc/op new alloc/op delta
Hash-8 2.16kB ± 0% 1.58kB ± 0% -27.01% (p=0.008 n=5+5)
HashMapAcyclic-8 2.53kB ± 0% 0.15kB ± 0% -93.99% (p=0.008 n=5+5)
name old allocs/op new allocs/op delta
Hash-8 77.0 ± 0% 49.0 ± 0% -36.36% (p=0.008 n=5+5)
HashMapAcyclic-8 202 ± 0% 4 ± 0% -98.02% (p=0.008 n=5+5)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
setkey
The acyclic map code interacts badly with netaddr.IPs.
One of the netaddr.IP fields is an *intern.Value,
and we use a few sentinel values.
Those sentinel values make many of the netaddr data structures appear cyclic.
One option would be to replace the cycle-detection code with
a Floyd-Warshall style algorithm. The downside is that this will take
longer to detect cycles, particularly if the cycle is long.
This problem is exacerbated by the fact that the acyclic cycle detection
code shares a single visited map for the entire data structure,
not just the subsection of the data structure localized to the map.
Unfortunately, the extra allocations and work (and code) to use per-map
visited maps make this option not viable.
Instead, continue to special-case netaddr data types.
name old time/op new time/op delta
Hash-8 22.4µs ± 0% 14.0µs ± 0% -37.59% (p=0.008 n=5+5)
HashMapAcyclic-8 23.8µs ± 0% 24.3µs ± 1% +1.75% (p=0.008 n=5+5)
name old alloc/op new alloc/op delta
Hash-8 2.49kB ± 0% 2.16kB ± 0% ~ (p=0.079 n=4+5)
HashMapAcyclic-8 2.53kB ± 0% 2.53kB ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
Hash-8 86.0 ± 0% 77.0 ± 0% -10.47% (p=0.008 n=5+5)
HashMapAcyclic-8 202 ± 0% 202 ± 0% ~ (all equal)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
Hash and xor each entry instead, then write final xor'ed result.
name old time/op new time/op delta
Hash-4 33.6µs ± 4% 34.6µs ± 3% +3.03% (p=0.013 n=10+9)
name old alloc/op new alloc/op delta
Hash-4 1.86kB ± 0% 1.77kB ± 0% -5.10% (p=0.000 n=10+9)
name old allocs/op new allocs/op delta
Hash-4 51.0 ± 0% 49.0 ± 0% -3.92% (p=0.000 n=10+10)
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Typical maps in production are considerably longer.
This helps benchmarks more accurately reflect the costs per key
vs the costs per map in deephash.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
magicsock.Conn.ParseEndpoint requires a peer's public key,
disco key, and legacy ip/ports in order to do its job.
We currently accomplish that by:
* adding the public key in our wireguard-go fork
* encoding the disco key as magic hostname
* using a bespoke comma-separated encoding
It's a bit messy.
Instead, switch to something simpler: use a json-encoded struct
containing exactly the information we need, in the form we use it.
Our wireguard-go fork still adds the public key to the
address when it passes it to ParseEndpoint, but now the code
compensating for that is just a couple of simple, well-commented lines.
Once this commit is in, we can remove that part of the fork
and remove the compensating code.
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
Yes, it printed, but that was an implementation detail for hashing.
And coming optimization will make it print even less.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Not that it matters, but we were missing a close parens.
It's cheap, so add it.
name old time/op new time/op delta
Hash-8 6.64µs ± 0% 6.67µs ± 1% +0.42% (p=0.008 n=9+10)
name old alloc/op new alloc/op delta
Hash-8 1.54kB ± 0% 1.54kB ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
Hash-8 37.0 ± 0% 37.0 ± 0% ~ (all equal)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
The struct field names don't change within a single run,
so they are irrelevant. Use the field index instead.
name old time/op new time/op delta
Hash-8 6.52µs ± 0% 6.64µs ± 0% +1.91% (p=0.000 n=6+9)
name old alloc/op new alloc/op delta
Hash-8 1.67kB ± 0% 1.54kB ± 0% -7.66% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
Hash-8 53.0 ± 0% 37.0 ± 0% -30.19% (p=0.000 n=10+10)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
These show up a lot in our data structures.
name old time/op new time/op delta
Hash-8 11.5µs ± 1% 7.8µs ± 1% -32.17% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
Hash-8 1.98kB ± 0% 1.67kB ± 0% -15.73% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
Hash-8 82.0 ± 0% 53.0 ± 0% -35.37% (p=0.000 n=10+10)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
The sha256 hash writer doesn't implement WriteString.
(See https://github.com/golang/go/issues/38776.)
As a consequence, we end up converting many strings to []byte.
Wrapping a bufio.Writer around the hash writer lets us
avoid these conversions by using WriteString.
Using a bufio.Writer is, perhaps surprisingly, almost as cheap as using unsafe.
The reason is that the sha256 writer does internal buffering,
but doesn't do any when handed larger writers.
Using a bufio.Writer merely shifts the data copying from one buffer
to a different one.
Using a concrete type for Print and print cuts 10% off of the execution time.
name old time/op new time/op delta
Hash-8 15.3µs ± 0% 11.5µs ± 0% -24.84% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
Hash-8 2.82kB ± 0% 1.98kB ± 0% -29.57% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
Hash-8 140 ± 0% 82 ± 0% -41.43% (p=0.000 n=10+10)
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
deepprint currently accounts for 15% of allocs in tailscaled.
This is a useful benchmark to have.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
We don't use the port that wireguard-go passes to us (via magicsock.connBind.Open).
We ignore it entirely and use the port we selected.
When we tell wireguard-go that we're changing the listen_port,
it calls connBind.Close and then connBind.Open.
And in the meantime, it stops calling the receive functions,
which means that we stop receiving and processing UDP and DERP packets.
And that is Very Bad.
That was never a problem prior to b3ceca1dd7,
because we passed the SkipBindUpdate flag to our wireguard-go fork,
which told wireguard-go not to re-bind on listen_port changes.
That commit eliminated the SkipBindUpdate flag.
We could write a bunch of code to work around the gap.
We could add background readers that process UDP and DERP packets when wireguard-go isn't.
But it's simpler to never create the conditions in which wireguard-go rebinds.
The other scenario in which wireguard-go re-binds is device.Down.
Conveniently, we never call device.Down. We go from device.Up to device.Close,
and the latter only when we're shutting down a magicsock.Conn completely.
Rubber-ducked-by: Avery Pennarun <apenwarr@tailscale.com>
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
Andrew Dunham
Will Norris
Danni Popova
Mario Minardi
Max Coulombe
Brad Fitzpatrick
Naman Sood
Tom Proctor
Percy Wegmann
Andrew Dunham
Josh Bleecher Snyder
Josh Bleecher Snyder
David Anderson