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Anton Tolchanov 151b77f9d6 cmd/tl-longchain: tool to re-sign nodes with long rotation signatures In Tailnet Lock, there is an implicit limit on the number of rotation signatures that can be chained before the signature becomes too long. This program helps tailnet admins to identify nodes that have signatures with long chains and prints commands to re-sign those node keys with a fresh direct signature. It's a temporary mitigation measure, and we will remove this tool as we design and implement a long-term approach for rotation signatures. Example output: ``` 2024/08/20 18:25:03 Self: does not need re-signing 2024/08/20 18:25:03 Visible peers with valid signatures: 2024/08/20 18:25:03 Peer xxx2.yy.ts.net. (100.77.192.34) nodeid=nyDmhiZiGA11KTM59, current signature kind=direct: does not need re-signing 2024/08/20 18:25:03 Peer xxx3.yy.ts.net. (100.84.248.22) nodeid=ndQ64mDnaB11KTM59, current signature kind=direct: does not need re-signing 2024/08/20 18:25:03 Peer xxx4.yy.ts.net. (100.85.253.53) nodeid=nmZfVygzkB21KTM59, current signature kind=rotation: chain length 4, printing command to re-sign tailscale lock sign nodekey:530bddbfbe69e91fe15758a1d6ead5337aa6307e55ac92dafad3794f8b3fc661 tlpub:4bf07597336703395f2149dce88e7c50dd8694ab5bbde3d7c2a1c7b3e231a3c2 ``` To support this, the NetworkLockStatus localapi response now includes information about signatures of all peers rather than just the invalid ones. This is not displayed by default in `tailscale lock status`, but will be surfaced in `tailscale lock status --json`. Updates #13185 Signed-off-by: Anton Tolchanov <anton@tailscale.com>		3 months ago
.bencher	bencher: add config to suppress failures on benchmark regressions.	3 years ago
.github	scripts: don't refresh the pacman repository on Arch (#12194 )	5 months ago
appc	appc: track metrics for route info storing	4 months ago
atomicfile	various: add golangci-lint, fix issues (#7905 )	2 years ago
chirp	all: update copyright and license headers	2 years ago
client	client/tailscale: add LocalClient.OmitAuth for tests	3 months ago
clientupdate	clientupdate: return true for CanAutoUpdate for macsys (#12746 )	5 months ago
cmd	cmd/tl-longchain: tool to re-sign nodes with long rotation signatures	3 months ago
control	go.{mod,sum}: migrate from nhooyr.io/websocket to github.com/coder/websocket	3 months ago
derp	go.{mod,sum}: migrate from nhooyr.io/websocket to github.com/coder/websocket	3 months ago
disco	disco: correct noun for nacl box type in disco docs	11 months ago
docs	docs/k8s: fix subnet router manifests (#12305 )	6 months ago
doctor	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
drive	safesocket: add ConnectContext	5 months ago
envknob	ci: enable checklocks workflow for specific packages	5 months ago
gokrazy	gokrazy,tstest/integration/nat: add Gokrazy appliance just for natlab	3 months ago
health	wgengine/magicsock: log when a ReceiveFunc fails	3 months ago
hostinfo	hostinfo: add hostinfo.IsNATLabGuestVM	3 months ago
internal	all: add test for package comments, fix, add comments as needed	4 months ago
ipn	cmd/tl-longchain: tool to re-sign nodes with long rotation signatures	3 months ago
jsondb	all: update copyright and license headers	2 years ago
k8s-operator	cmd/k8s-operator,k8s-operator/sessionrecording: support recording kubectl exec sessions over WebSockets (#12947 )	3 months ago
kube	all: add test for package comments, fix, add comments as needed	4 months ago
licenses	licenses: update license notices	3 months ago
log	log/sockstatlog: don't block for more than 5s on shutdown	4 months ago
logpolicy	cmd/tta, vnet: add host firewall, env var support, more tests	3 months ago
logtail	logtail: close idle HTTP connections on shutdown	4 months ago
metrics	all: use Go 1.22 range-over-int	7 months ago
net	net/tstun,wgengine{/netstack/gro}: refactor and re-enable gVisor GRO for Linux (#13172 )	3 months ago
omit	cmd/tailscaled, ipn/conffile: support ec2 user-data config file	6 months ago
packages/deb	go.mod: upgrade nfpm to v2 (#8786 )	1 year ago
paths	all: use Go 1.22 range-over-int	7 months ago
portlist	all: use Go 1.22 range-over-int	7 months ago
posture	posture: deduplicate MAC addresses before returning them	3 months ago
prober	prober: make status page more clear	4 months ago
proxymap	ci: enable checklocks workflow for specific packages	5 months ago
publicapi	publicapi: add note that API docs have moved to existing docs files (#12770 )	4 months ago
release	release/dist/qnap: omit .qpkg.codesigning files	7 months ago
safesocket	safesocket: add ConnectContext	5 months ago
safeweb	safeweb: add Server.Close method (#13160 )	3 months ago
scripts	scripts: don't refresh the pacman repository on Arch (#12194 )	5 months ago
sessionrecording	cmd/k8s-operator,k8s-operator/sessionrecording,sessionrecording,ssh/tailssh: refactor session recording functionality (#12945 )	4 months ago
smallzstd	all: use Go 1.22 range-over-int	7 months ago
ssh/tailssh	ssh/tailssh: fix SSH on busybox systems	3 months ago
syncs	syncs: add Map.WithLock to allow mutations to the underlying map (#8101 )	4 months ago
tailcfg	ssh/tailssh: fix SSH on busybox systems	3 months ago
taildrop	all: use new AppendEncode methods available in Go 1.22 (#11079 )	10 months ago
tempfork	cmd/tailscale: add shell tab-completion	7 months ago
tka	cmd/tl-longchain: tool to re-sign nodes with long rotation signatures	3 months ago
tool	{tool,client}: bump node version (#12840 )	4 months ago
tsconst	cmd/tailscale/cli: support passing network lock keys via files	3 months ago
tsd	health, all: remove health.Global, finish plumbing health.Tracker	7 months ago
tsnet	tsnet: do not log an error on shutdown	5 months ago
tstest	tstest/tailmac: add customized macOS virtualization tooling (#13146 )	3 months ago
tstime	all: use math/rand/v2 more	6 months ago
tsweb	tsweb: fix TestStdHandler_ConnectionClosedDuringBody flake (#13046 )	3 months ago
types	types/lazy: re-init SyncValue during test cleanup if it wasn't set before SetForTest	4 months ago
util	util/winutil: add GetRegUserString/SetRegUserString accessors for storage and retrieval of string values in HKEY_CURRENT_USER	3 months ago
version	version/mkversion: allow env config of oss git cache dir	5 months ago
wf	all: add test for package comments, fix, add comments as needed	4 months ago
wgengine	wgengine/netstack/gro: exclude importation of gVisor GRO pkg on iOS (#13202 )	3 months ago
words	words: raccoon dog, dog with the raccoon in 'im	4 months ago
.gitattributes	.: add .gitattributes entry to use Go hunk-header driver	3 years ago
.gitignore	tstest/tailmac: add customized macOS virtualization tooling (#13146 )	3 months ago
.golangci.yml	ci: run 'go vet' in golangci-lint; fix errors in tests	12 months ago
ALPINE.txt	ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543 )	12 months ago
AUTHORS	Move Linux client & common packages into a public repo.	5 years ago
CODEOWNERS	CODEOWNERS: add the start of an owners file	1 year ago
CODE_OF_CONDUCT.md	Add a code of conduct.	5 years ago
Dockerfile	go.{mod,sum}: migrate from nhooyr.io/websocket to github.com/coder/websocket	3 months ago
Dockerfile.base	ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543 )	12 months ago
LICENSE	all: update tools that manage copyright headers	2 years ago
Makefile	ssh/tailssh: fix SSH on busybox systems	3 months ago
PATENTS	Move Linux client & common packages into a public repo.	5 years ago
README.md	go.mod, README.md: use Go 1.22	10 months ago
SECURITY.md	Add a SECURITY.md for vulnerability reports.	5 years ago
VERSION.txt	VERSION.txt: this is v1.73.0 (#13181 )	3 months ago
api.md	publicapi: add note that API docs have moved to existing docs files (#12770 )	4 months ago
build_dist.sh	cmd/tailscale: add shell tab-completion	7 months ago
build_docker.sh	build_docker.sh: update script comment (#12970 )	4 months ago
flake.lock	flake.nix: build tailscale with go 1.22	9 months ago
flake.nix	go.mod.sri: update SRI hash for go.mod changes	3 months ago
go.mod	go.{mod,sum}: migrate from nhooyr.io/websocket to github.com/coder/websocket	3 months ago
go.mod.sri	go.mod.sri: update SRI hash for go.mod changes	3 months ago
go.sum	go.{mod,sum}: migrate from nhooyr.io/websocket to github.com/coder/websocket	3 months ago
go.toolchain.branch	go.toolchain.rev: bump to Go 1.22.0 (#11055 )	10 months ago
go.toolchain.rev	go.toolchain.rev: bump Go toolchain for net pkg resolv.conf fix	4 months ago
gomod_test.go	go.mod: add test that replace directives aren't added in oss	1 year ago
header.txt	cmd/k8s-operator: operator can create subnetrouter (#9505 )	11 months ago
pkgdoc_test.go	all: add test for package comments, fix, add comments as needed	4 months ago
pull-toolchain.sh	pull-toolchain.sh: don't run update-flake.sh	2 years ago
shell.nix	go.mod.sri: update SRI hash for go.mod changes	3 months ago
staticcheck.conf	all: cleanup unused code, part 2 (#10670 )	11 months ago
update-flake.sh	Code Improvements (#11311 )	9 months ago
version-embed.go	version: return correct Meta.MajorMinorPatch in non-dev builds	2 years ago
version_test.go	go.mod,wgengine/netstack: bump gvisor	10 months ago

README.md

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains the majority of Tailscale's open source code. Notably, it includes the tailscaled daemon and the tailscale CLI tool. The tailscaled daemon runs on Linux, Windows, macOS, and to varying degrees on FreeBSD and OpenBSD. The Tailscale iOS and Android apps use this repo's code, but this repo doesn't contain the mobile GUI code.

Other Tailscale repos of note:

the Android app is at https://github.com/tailscale/tailscale-android
the Synology package is at https://github.com/tailscale/tailscale-synology
the QNAP package is at https://github.com/tailscale/tailscale-qpkg
the Chocolatey packaging is at https://github.com/tailscale/tailscale-chocolatey

For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.

Using

We serve packages for a variety of distros and platforms at https://pkgs.tailscale.com.

Other clients

The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers. The GUI wrappers on non-open source platforms are themselves not open source.

Building

We always require the latest Go release, currently Go 1.22. (While we build releases with our Go fork, its use is not required.)

go install tailscale.com/cmd/tailscale{,d}

If you're packaging Tailscale for distribution, use build_dist.sh instead, to burn commit IDs and version info into the binaries:

./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled

If your distro has conventions that preclude the use of build_dist.sh, please do the equivalent of what it does in your distro's way, so that bug reports contain useful version information.

Bugs

Please file any issues about this code or the hosted service on the issue tracker.

Contributing

PRs welcome! But please file bugs. Commit messages should reference bugs.

We require Developer Certificate of Origin Signed-off-by lines in commits.

See git log for our commit message style. It's basically the same as Go's style.

About Us

Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:

Legal

WireGuard is a registered trademark of Jason A. Donenfeld.