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Andrew Dunham 727acf96a6 net/netcheck: use DERP frames as a signal for home region liveness This uses the fact that we've received a frame from a given DERP region within a certain time as a signal that the region is stil present (and thus can still be a node's PreferredDERP / home region) even if we don't get a STUN response from that region during a netcheck. This should help avoid DERP flaps that occur due to losing STUN probes while still having a valid and active TCP connection to the DERP server. RELNOTE=Reduce home DERP flapping when there's still an active connection Updates #8603 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: If7da6312581e1d434d5c0811697319c621e187a0		12 months ago
.bencher	bencher: add config to suppress failures on benchmark regressions.	3 years ago
.github	.github/workflows: add webclient workflow	12 months ago
appc	appc: fix DomainRoutes copy	1 year ago
atomicfile	various: add golangci-lint, fix issues (#7905 )	2 years ago
chirp	all: update copyright and license headers	2 years ago
client	client/web: fix redirect logic when accessing login client over TS IP	12 months ago
clientupdate	clientupdate: add explicit Track to Arguments (#10548 )	12 months ago
cmd	net/netcheck: use DERP frames as a signal for home region liveness	12 months ago
control	linuxfw,wgengine/route,ipn: add c2n and nodeattrs to control linux netfilter	12 months ago
derp	derp/derphttp: use a getter method to read server key	1 year ago
disco	disco,net/tstun,wgengine/magicsock: probe peer MTU	1 year ago
docs	cmd/k8s-operator: use our own container image instead of busybox	1 year ago
doctor	doctor/permissions: add new check to print process permissions	2 years ago
envknob	client/web: show features based on platform support	12 months ago
health	net/netcheck: use DERP frames as a signal for home region liveness	12 months ago
hostinfo	hostinfo: fix a couple of logic simplification lints	1 year ago
internal/tooldeps	various: add golangci-lint, fix issues (#7905 )	2 years ago
ipn	ipn/ipnlocal, util/syspolicy: make run exit node a preference option	12 months ago
jsondb	all: update copyright and license headers	2 years ago
kube	cmd/k8s-operator,ipn/store/kubestore: patch secrets instead of updating	1 year ago
licenses	licenses: update android licenses	12 months ago
log	tailcfg: move LogHeapPprof from Debug to c2n [capver 69]	1 year ago
logpolicy	winutil: refactor methods to get values from registry to also return (#9536 )	1 year ago
logtail	logtail: fix Logger.Write return result	1 year ago
metrics	metrics: add missing comma in histogram JSON export	1 year ago
net	net/netcheck: use DERP frames as a signal for home region liveness	12 months ago
packages/deb	go.mod: upgrade nfpm to v2 (#8786 )	1 year ago
paths	safesocket, paths: add Plan 9 support	1 year ago
portlist	all: fix nilness issues	12 months ago
posture	ci: run 'go vet' in golangci-lint; fix errors in tests	12 months ago
prober	prober: log HTTP response body on failure	12 months ago
proxymap	wgengine, proxymap: split out port mapping from Engine to new type	1 year ago
release	release/dist/unixpkgs: revert iptables move to Recommends, make it Depends	1 year ago
safesocket	safesocket: make clear which net.Conns are winio types	1 year ago
scripts	util/winutil: add support for restarting Windows processes in specific sessions	12 months ago
smallzstd	all: update copyright and license headers	2 years ago
ssh/tailssh	ssh/tailssh: use control server time instead of local time	1 year ago
syncs	Fix potential goroutine leak in syncs/watchdog.go	1 year ago
tailcfg	tailcfg: bump CapabilityVersion for Linux netfilter NodeAttrs and c2n endpoint	12 months ago
taildrop	taildrop: lazily perform full deletion scan after first taildrop use (#10137 )	1 year ago
tempfork	all: use Go 1.21 slices, maps instead of x/exp/{slices,maps}	1 year ago
tka	tka: clarify field comment	1 year ago
tool	ci: report test coverage to coveralls.io	1 year ago
tsconst	all: update copyright and license headers	2 years ago
tsd	cmd/tailscaled,*: add start of configuration file support	1 year ago
tsnet	tsnet: add CapturePcap method for debugging	1 year ago
tstest	tstest/deptest: fix minor escaping error in regex	1 year ago
tstime	tstime: add DefaultClock (#9691 )	1 year ago
tsweb	tsweb: propagate RequestID via context and entire request	12 months ago
types	appc,ipn/local: support wildcard when matching app-connectors	1 year ago
util	util/linuxfw: return created chain (#10563 )	12 months ago
version	cmd/tailscale/cli: set Sparkle auto-update on macsys (#9952 )	1 year ago
wf	all: update copyright and license headers	2 years ago
wgengine	net/netcheck: use DERP frames as a signal for home region liveness	12 months ago
words	words: some stellar additions	12 months ago
.gitattributes	.: add .gitattributes entry to use Go hunk-header driver	3 years ago
.gitignore	client/web: always use new web client; remove old client	1 year 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	ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543 )	12 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	ci: run 'go vet' in golangci-lint; fix errors in tests	12 months ago
PATENTS	Move Linux client & common packages into a public repo.	5 years ago
README.md	client/web: switch to using prebuilt web client assets	1 year ago
SECURITY.md	Add a SECURITY.md for vulnerability reports.	5 years ago
VERSION.txt	VERSION.txt: this is v1.57.0	12 months ago
api.md	api.md: remove clientConnectivity.derp field	1 year ago
build_dist.sh	client/web: switch to using prebuilt web client assets	1 year ago
build_docker.sh	ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543 )	12 months ago
flake.lock	flake.nix: use Go 1.21 to build tailscale flake	1 year ago
flake.nix	go.mod.sri: update SRI hash for go.mod changes	12 months ago
go.mod	go.mod: update web-client-prebuilt module	12 months ago
go.mod.sri	go.mod.sri: update SRI hash for go.mod changes	12 months ago
go.sum	go.mod: update web-client-prebuilt module	12 months ago
go.toolchain.branch	go.toolchain: switch to tailscale.go1.21 (#8415 )	1 year ago
go.toolchain.rev	go.toolchain.rev: bump to 1.21.5 (#10475 )	12 months ago
gomod_test.go	go.mod: add test that replace directives aren't added in oss	1 year 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	12 months ago
staticcheck.conf	staticcheck.conf: remove unnecessary warning	3 years ago
update-flake.sh	.github/workflows: add workflow to update go.mod Nix SRI hash	2 years ago
version-embed.go	version: return correct Meta.MajorMinorPatch in non-dev builds	2 years ago
version_test.go	all: update copyright and license headers	2 years 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 1.21. (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.