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Brad Fitzpatrick f6107224f0 derp/derphttp: fix netcheck HTTPS probes The netcheck client, when no UDP is available, probes distance using HTTPS. Several problems: * It probes using /derp/latency-check. * But cmd/derper serves the handler at /derp/probe * Despite the difference, it work by accident until `c8f4dfc8c0` which made netcheck's probe require a 2xx status code. * in tests, we only use derphttp.Handler, so the cmd/derper-installed mux routes aren't preesnt, so there's no probe. That breaks tests in airplane mode. netcheck.Client then reports "unexpected HTTP status 426" (Upgrade Required) This makes derp handle both /derp/probe and /derp/latency-check equivalently, and in both cmd/derper and derphttp.Handler standalone modes. I notice this when wgengine/magicsock TestActiveDiscovery was failing in airplane mode (no wifi). It still doesn't pass, but it gets further. Fixes #11989 Change-Id: I45213d4bd137e0f29aac8bd4a9ac92091065113f		6 months ago
.bencher	bencher: add config to suppress failures on benchmark regressions.	3 years ago
.github	scripts/installer.sh: remove unnecessary escaping in grep (#11950 )	6 months ago
appc	appc: setting AdvertiseRoutes explicitly discards app connector routes	6 months ago
atomicfile	various: add golangci-lint, fix issues (#7905 )	2 years ago
chirp	all: update copyright and license headers	2 years ago
client	build(deps-dev): bump vite from 5.1.4 to 5.1.7 in /client/web	7 months ago
clientupdate	clientupdate: exec systemctl instead of using dbus to restart (#11923 )	6 months ago
cmd	derp/derphttp: fix netcheck HTTPS probes	6 months ago
control	appc: add flag shouldStoreRoutes and controlknob for it	6 months ago
derp	derp/derphttp: fix netcheck HTTPS probes	6 months ago
disco	disco: correct noun for nacl box type in disco docs	11 months ago
docs	docs/windows/policy: add missing key expiration warning interval	7 months ago
doctor	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	6 months ago
drive	drive: use secret token to authenticate access to file server on localhost	6 months ago
envknob	envknob: ensure f is not nil before using it	8 months ago
health	health, ipn/ipnlocal: move more health warning code into health.Tracker	6 months ago
hostinfo	hostinfo: use Distro field for distinguishing Windows Server builds	7 months ago
internal/tooldeps	various: add golangci-lint, fix issues (#7905 )	2 years ago
ipn	derp,ipn/ipnlocal: stop calling rand.Seed	6 months ago
jsondb	all: update copyright and license headers	2 years ago
k8s-operator	cmd/k8s-operator/deploy,k8s-operator: document that metrics are unstable (#11979 )	6 months ago
kube	cmd/containerboot,kube,ipn/store/kubestore: allow interactive login on kube, check Secret create perms, allow empty state Secret (#11326 )	6 months ago
licenses	licenses: update license notices	6 months ago
log	net/netns, net/dns/resolver, etc: make netmon required in most places	6 months ago
logpolicy	net/netns, net/dns/resolver, etc: make netmon required in most places	6 months ago
logtail	net/netns, net/dns/resolver, etc: make netmon required in most places	6 months ago
metrics	all: use Go 1.22 range-over-int	7 months ago
net	derp/derphttp, net/netcheck: plumb netmon.Monitor to derp netcheck client	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	cmd/tailscaled, net/tstun: build for aix/ppc64	7 months ago
prober	net/netns, net/dns/resolver, etc: make netmon required in most places	6 months ago
proxymap	wgengine, proxymap: split out port mapping from Engine to new type	1 year ago
release	release/dist/qnap: omit .qpkg.codesigning files	6 months ago
safesocket	all: use Go 1.22 range-over-int	7 months ago
safeweb	safeweb: handle mux pattern collisions more generally (#11801 )	6 months ago
scripts	scripts/installer.sh: remove unnecessary escaping in grep (#11950 )	6 months ago
smallzstd	all: use Go 1.22 range-over-int	7 months ago
ssh/tailssh	ssh/tailssh: plumb health.Tracker in test	6 months ago
syncs	syncs: fix AtomicValue for interface kinds (#11943 )	6 months ago
tailcfg	tailcfg: add suggest exit node UI node attribute (#11918 )	6 months ago
taildrop	all: use new AppendEncode methods available in Go 1.22 (#11079 )	9 months ago
tempfork	cmd/tailscale: add shell tab-completion	7 months ago
tka	all: use Go 1.22 range-over-int	7 months ago
tool	tool/gocross: add android autoflags (#11465 )	8 months ago
tsconst	all: update copyright and license headers	2 years ago
tsd	health, all: remove health.Global, finish plumbing health.Tracker	6 months ago
tsnet	health, all: remove health.Global, finish plumbing health.Tracker	6 months ago
tstest	cmd/derper,tstest/nettest: skip network-needing test in airplane mode	6 months ago
tstime	all: use Go 1.22 range-over-int	7 months ago
tsweb	all: use Go 1.22 range-over-int	7 months ago
types	types/views: use slices.Contains{,Func}	6 months ago
util	util/slicesx: add AppendMatching	6 months ago
version	all: use Go 1.22 range-over-int	7 months ago
wf	go.mod, all: move away from inet.af domain seized by Taliban	9 months ago
wgengine	ssh/tailssh: plumb health.Tracker in test	6 months ago
words	words: add a list of things you should yahoo!	9 months ago
.gitattributes	.: add .gitattributes entry to use Go hunk-header driver	3 years ago
.gitignore	ssh/tailssh: add integration test	6 months ago
.golangci.yml	ci: run 'go vet' in golangci-lint; fix errors in tests	11 months ago
ALPINE.txt	ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543 )	11 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	Dockerfile: use Go 1.22	9 months ago
Dockerfile.base	ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543 )	11 months ago
LICENSE	all: update tools that manage copyright headers	2 years ago
Makefile	ssh/tailssh: add integration test	6 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	9 months ago
SECURITY.md	Add a SECURITY.md for vulnerability reports.	5 years ago
VERSION.txt	VERSION.txt: this is v1.65.0	7 months ago
api.md	api.md: add documentation for new split DNS endpoints (#11922 )	6 months ago
build_dist.sh	cmd/tailscale: add shell tab-completion	7 months ago
build_docker.sh	cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11919 )	6 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	7 months ago
go.mod	cmd/{k8s-operator,k8s-nameserver},k8s-operator: update nameserver config with records for ingress/egress proxies (#11019 )	6 months ago
go.mod.sri	go.mod.sri: update SRI hash for go.mod changes	7 months ago
go.sum	net/tstun: implement env var for disabling UDP GRO on Linux (#11924 )	6 months ago
go.toolchain.branch	go.toolchain.rev: bump to Go 1.22.0 (#11055 )	9 months ago
go.toolchain.rev	go.toolchain.rev: bump to Go 1.22.2	7 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
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	7 months ago
staticcheck.conf	all: cleanup unused code, part 2 (#10670 )	11 months ago
update-flake.sh	Code Improvements (#11311 )	8 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.