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Brad Fitzpatrick c76a6e5167 derp: track client-advertised non-ideal DERP connections in more places In `f77821fd63` (released in v1.72.0), we made the client tell a DERP server when the connection was not its ideal choice (the first node in its region). But we didn't do anything with that information until now. This adds a metric about how many such connections are on a given derper, and also adds a bit to the PeerPresentFlags bitmask so watchers can identify (and rebalance) them. Updates tailscale/corp#372 Change-Id: Ief8af448750aa6d598e5939a57c062f4e55962be Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>		1 month ago
.bencher	bencher: add config to suppress failures on benchmark regressions.	3 years ago
.github	.github: Bump github/codeql-action from 3.26.9 to 3.26.11 (#13710 )	2 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	ipn/ipnlocal: error when trying to use exit node on unsupported platform (#13726 )	1 month ago
clientupdate	clientupdate: don't link distsign on platforms that don't download	1 month ago
cmd	derp: track client-advertised non-ideal DERP connections in more places	1 month ago
control	control/controlhttp: don't link ts2021 server + websocket code on iOS	1 month ago
derp	derp: track client-advertised non-ideal DERP connections in more places	1 month ago
disco	disco: correct noun for nacl box type in disco docs	11 months ago
docs	docs/windows/policy: add ADMX policy setting to configure the AuthKey	2 months ago
doctor	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
drive	drive/driveimpl: use su instead of sudo	3 months ago
envknob	ipn/ipnlocal: error when trying to use exit node on unsupported platform (#13726 )	1 month ago
gokrazy	gokrazy, various: use point versions of Go and update Nix deps	2 months ago
health	control/controlhttp: fix connectivity on Alaska Air wifi	2 months ago
hostinfo	hostinfo,build_docker.sh,tailcfg: more reliably detect being in a container (#13826 )	1 month ago
internal	all: add test for package comments, fix, add comments as needed	5 months ago
ipn	ipn/{ipnauth,ipnlocal,ipnserver}: send the auth URL to the user who started interactive login	1 month ago
jsondb	all: update copyright and license headers	2 years ago
k8s-operator	k8s-operator/apis: revert ProxyGroup readiness cond name change (#13770 )	1 month ago
kube	kube/egressservices: improve egress ports config readability (#13722 )	2 months ago
licenses	licenses: update license notices	1 month ago
log	log/sockstatlog: don't block for more than 5s on shutdown	4 months ago
logpolicy	cmd/tsconnect, logpolicy: fixes for wasm_js.go	1 month ago
logtail	logtail: close idle HTTP connections on shutdown	4 months ago
metrics	metrics: revert changes to MultiLabelMap's String method	2 months ago
net	net/tlsdial: call out firewalls blocking Tailscale in health warnings (#13840 )	1 month 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	control/controlclient,posture,util/syspolicy: use predefined syspolicy keys instead of string literals	3 months ago
prober	prober: make status page more clear	4 months ago
proxymap	ipnlocal,proxymap,wgengine/netstack: add optional WhoIs/proxymap debug	2 months ago
release	release/dist: clamp min / max version for synology package centre (#13857 )	1 month ago
safesocket	safesocket: don't depend on go-ps on iOS	1 month ago
safeweb	safeweb: allow passing http.Server in safeweb.Config (#13688 )	2 months ago
scripts	scripts/installer.sh: support DNF5	1 month ago
sessionrecording	sessionrecording,ssh/tailssh,k8s-operator: log connected recorder address (#13382 )	3 months ago
smallzstd	all: use Go 1.22 range-over-int	7 months ago
ssh/tailssh	ssh/tailssh: calculate passthrough environment at latest possible stage	1 month ago
syncs	syncs: allocate map with Map.WithLock (#13755 )	2 months ago
tailcfg	cmd/tailscale,ipn,tailcfg: add `tailscale advertise` subcommand behind envknob (#13734 )	1 month ago
taildrop	taildrop: fix defer in loop (#13757 )	2 months ago
tempfork	cmd/tailscale: add shell tab-completion	7 months ago
tka	tka: truncate long rotation signature chains	3 months ago
tool	tool/gocross: add support for tvOS Simulator (#13847 )	1 month ago
tsconst	cmd/tailscale/cli: support passing network lock keys via files	3 months ago
tsd	util/usermetrics: make usermetrics non-global	2 months ago
tsnet	wgengine: instrument with usermetrics	1 month ago
tstest	tstest: avoid Fatal in ResourceCheck to show panic (#13790 )	1 month ago
tstime	all: use math/rand/v2 more	6 months ago
tsweb	usermetric: add initial user-facing metrics	3 months ago
types	types/bools: add Compare to compare boolean values (#13792 )	1 month ago
util	util/syspolicy: add rsop package that provides access to the resultant policy	1 month ago
version	{release,version}: add DSM7.2 specific synology builds (#13405 )	2 months ago
wf	wf/firewall: allow link-local multicast for permitted local routes when the killswitch is on on Windows	2 months ago
wgengine	wgengine/magicsock: fix CI-only test warning of missing health tracker	1 month 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	all: switch to and require Go 1.23	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	all: switch to and require Go 1.23	3 months ago
SECURITY.md	Add a SECURITY.md for vulnerability reports.	5 years ago
VERSION.txt	VERSION.txt: this is v1.77.0 (#13779 )	1 month ago
api.md	{api.md,publicapi}: remove old API docs (#13468 )	2 months ago
assert_ts_toolchain_match.go	tailscaleroot: panic if tailscale_go build tag but Go toolchain mismatch	2 months ago
build_dist.sh	cmd/tailscale: add shell tab-completion	7 months ago
build_docker.sh	hostinfo,build_docker.sh,tailcfg: more reliably detect being in a container (#13826 )	1 month ago
flake.lock	nix: update nix and use go 1.23	3 months ago
flake.nix	gokrazy, various: use point versions of Go and update Nix deps	2 months ago
go.mod	cmd/{k8s-operator,containerboot},k8s-operator,kube: reconcile ExternalName Services for ProxyGroup (#13635 )	2 months ago
go.mod.sri	go.mod.sri: update SRI hash for go.mod changes	3 months ago
go.sum	go.mod: upgrade golangci-lint	2 months ago
go.toolchain.branch	all: switch to and require Go 1.23	3 months ago
go.toolchain.rev	go.toolchain.rev: bump oss, test toolchain matches go.toolchain.rev	2 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 )	12 months ago
pkgdoc_test.go	all: add test for package comments, fix, add comments as needed	5 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	tailscaleroot: panic if tailscale_go build tag but Go toolchain mismatch	2 months ago
version_tailscale_test.go	tailscaleroot: panic if tailscale_go build tag but Go toolchain mismatch	2 months 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 1.23. (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.