You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Go to file

Nick Khyl d837e0252f wf/firewall: allow link-local multicast for permitted local routes when the killswitch is on on Windows When an Exit Node is used, we create a WFP rule to block all inbound and outbound traffic, along with several rules to permit specific types of traffic. Notably, we allow all inbound and outbound traffic to and from LocalRoutes specified in wgengine/router.Config. The list of allowed routes always includes routes for internal interfaces, such as loopback and virtual Hyper-V/WSL2 interfaces, and may also include LAN routes if the "Allow local network access" option is enabled. However, these permitting rules do not allow link-local multicast on the corresponding interfaces. This results in broken mDNS/LLMNR, and potentially other similar issues, whenever an exit node is used. In this PR, we update (wf.Firewall).UpdatePermittedRoutes() to create rules allowing outbound and inbound link-local multicast traffic to and from the permitted IP ranges, partially resolving the mDNS/LLMNR and .local name resolution issue. Since Windows does not attempt to send mDNS/LLMNR queries if a catch-all NRPT rule is present, it is still necessary to disable the creation of that rule using the disable-local-dns-override-via-nrpt nodeAttr. Updates #13571 Signed-off-by: Nick Khyl <nickk@tailscale.com>		2 months ago
.bencher	bencher: add config to suppress failures on benchmark regressions.	3 years ago
.github	.github: Bump github/codeql-action from 3.26.8 to 3.26.9 (#13625 )	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	client/web: use tsaddr helpers	2 months ago
clientupdate	clientupdate: return true for CanAutoUpdate for macsys (#12746 )	5 months ago
cmd	cmd/tailscale/cli: make 'tailscale debug ts2021' try twice	2 months ago
control	control/control{client,http}: don't noise dial localhost:443 in http-only tests	2 months ago
derp	derp: document the RunWatchConnectionLoop callback gotchas	2 months 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	kube,cmd/{k8s-operator,containerboot},envknob,ipn/store/kubestore,*/depaware.txt: rename packages (#13418 )	3 months 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: add hostinfo.IsNATLabGuestVM	4 months ago
internal	all: add test for package comments, fix, add comments as needed	5 months ago
ipn	ipn/ipnlocal: add advertised and primary route metrics	2 months ago
jsondb	all: update copyright and license headers	2 years ago
k8s-operator	cmd/k8s-operator,k8s-operator: add ProxyGroup CRD (#13591 )	2 months ago
kube	cmd/containerboot,kube,util/linuxfw: configure kube egress proxies to route to 1+ tailnet targets (#13531 )	2 months ago
licenses	licenses: update license notices	2 months ago
log	log/sockstatlog: don't block for more than 5s on shutdown	4 months ago
logpolicy	logpolicy: don't create a filch buffer if logging is disabled	2 months 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/dns: tweak DoH timeout, limit MaxConnsPerHost, require TLS 1.3 (#13564 )	2 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	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,version}: add DSM7.2 specific synology builds (#13405 )	2 months ago
safesocket	all: fix new lint warnings from bumping staticcheck	3 months ago
safeweb	safeweb: add a ListenAndServe method to the Server type (#13498 )	2 months ago
scripts	scripts: don't refresh the pacman repository on Arch (#12194 )	5 months 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: Add logic to set accepted environment variables in SSH session (#13559 )	2 months ago
syncs	syncs: add Map.WithLock to allow mutations to the underlying map (#8101 )	4 months ago
tailcfg	tailcfg: add AcceptEnv field to SSHRule (#13523 )	2 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	tka: truncate long rotation signature chains	3 months ago
tool	tool/gocross: make gocross-wrapper.sh keep multiple Go toolchains around	2 months 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	ipn/ipnlocal: add advertised and primary route metrics	2 months ago
tstest	wf/firewall: allow link-local multicast for permitted local routes when the killswitch is on on Windows	2 months ago
tstime	all: use math/rand/v2 more	6 months ago
tsweb	usermetric: add initial user-facing metrics	3 months ago
types	cli: add `tailscale dns query` (#13368 )	2 months ago
util	cmd/containerboot,kube,util/linuxfw: configure kube egress proxies to route to 1+ tailnet targets (#13531 )	2 months 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	cmd/containerboot,kube,util/linuxfw: configure kube egress proxies to route to 1+ tailnet targets (#13531 )	2 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	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 v1.75.0 (#13454 )	2 months ago
api.md	{api.md,publicapi}: remove old API docs (#13468 )	2 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	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	go.mod: upgrade golangci-lint	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 )	11 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	version: return correct Meta.MajorMinorPatch in non-dev builds	2 years ago
version_tailscale_test.go	go.toolchain.rev: bump oss, test toolchain matches go.toolchain.rev	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.