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Joe Tsai b4ba492701
logtail: require Buffer.Write to not retain the provided slice (#11617)
Buffer.Write has the exact same signature of io.Writer.Write.
The latter requires that implementations to never retain
the provided input buffer, which is an expectation that most
users will have when they see a Write signature.

The current behavior of Buffer.Write where it does retain
the input buffer is a risky precedent to set.
Switch the behavior to match io.Writer.Write.

There are only two implementations of Buffer in existence:
* logtail.memBuffer
* filch.Filch

The former can be fixed by cloning the input to Write.
This will cause an extra allocation in every Write,
but we can fix that will pooling on the caller side
in a follow-up PR.

The latter only passes the input to os.File.Write,
which does respect the io.Writer.Write requirements.

Updates #cleanup
Updates tailscale/corp#18514

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
7 months ago
.bencher bencher: add config to suppress failures on benchmark regressions. 3 years ago
.github .github/workflows: remove go-licenses action 8 months ago
appc appc: optimize dns response observation for large route tables 9 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,localapi}: add API to toggle use of exit node 7 months ago
clientupdate clientupdate, net/dns: fix some "tailsacle" typos 8 months ago
cmd Revert "cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017)" (#11669) 7 months ago
control control/controlclient: delete old naclbox code, require ts2021 Noise 8 months ago
derp derp/derphttp: don't block in LocalAddr method 7 months ago
disco disco: correct noun for nacl box type in disco docs 11 months ago
docs docs/policy: update ADMX and ADML files with new Windows 1.62 syspolicies 7 months ago
doctor doctor/ethtool, ipn/ipnlocal: add ethtool bugreport check 9 months ago
drive drive: move normalizeShareName into pkg drive and make func public (#11638) 7 months ago
envknob envknob: ensure f is not nil before using it 8 months ago
health health: warn about reverse path filtering and exit nodes 9 months ago
hostinfo hostinfo: cache device model to speed up init 8 months ago
internal/tooldeps various: add golangci-lint, fix issues (#7905) 2 years ago
ipn ipn/{ipnlocal,localapi}: add API to toggle use of exit node 7 months ago
jsondb all: update copyright and license headers 2 years ago
k8s-operator Revert "cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017)" (#11669) 7 months ago
kube cmd/k8s-operator,ipn/store/kubestore: patch secrets instead of updating 1 year ago
licenses licenses: update license notices 8 months ago
log all: use zstdframe where sensible (#11491) 8 months ago
logpolicy all: use zstdframe where sensible (#11491) 8 months ago
logtail logtail: require Buffer.Write to not retain the provided slice (#11617) 7 months ago
metrics metrics: fix outdated docs on MultiLabelMap 8 months ago
net net/tsdial: partially fix "tailscale nc" (UserDial) on macOS 7 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: cleanup unused code, part 2 (#10670) 11 months ago
posture ci: run 'go vet' in golangci-lint; fix errors in tests 11 months ago
prober prober: export probe class and metrics from bandwidth prober 7 months ago
proxymap wgengine, proxymap: split out port mapping from Engine to new type 1 year ago
release version/mkversion: enforce synology versions within int32 range 8 months ago
safesocket version,cli,safesocket: detect non-sandboxed macOS GUI (#11369) 8 months ago
safeweb safeweb: move http.Serve for HTTP redirects into lib (#11592) 8 months ago
scripts scripts/installer.sh: auto-start tailscale on Alpine (#11214) 9 months ago
smallzstd all: update copyright and license headers 2 years ago
ssh/tailssh all: use reflect.TypeFor now available in Go 1.22 (#11078) 9 months ago
syncs syncs: add Swap method 8 months ago
tailcfg tailscale: switch tailfs to drive syntax for api and logs (#11625) 8 months ago
taildrop all: use new AppendEncode methods available in Go 1.22 (#11079) 9 months ago
tempfork net/tstun: use gaissmai/bart instead of tempfork/device 8 months ago
tka all: use new AppendEncode methods available in Go 1.22 (#11079) 9 months ago
tool tool/gocross: add android autoflags (#11465) 8 months ago
tsconst all: update copyright and license headers 2 years ago
tsd tailscale: update tailfs functions and vars to use drive naming (#11597) 8 months ago
tsnet tailscale: update tailfs functions and vars to use drive naming (#11597) 8 months ago
tstest control/controlclient: delete old naclbox code, require ts2021 Noise 8 months ago
tstime tstime/rate: implement Value.{Marshal,Unmarshal}JSON (#8481) 10 months ago
tsweb tsweb: handle panics in retHandler 7 months ago
types ipn/ipnlocal, types/netmap: replace hasCapability with set lookup on NetworkMap 8 months ago
util util/linuxfw: fix chain comparison (#11639) 7 months ago
version net/tsdial: partially fix "tailscale nc" (UserDial) on macOS 7 months ago
wf go.mod, all: move away from inet.af domain seized by Taliban 9 months ago
wgengine wgengine/netstack: remove SubnetRouterWrapper 7 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 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 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 Revert "cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017)" (#11669) 7 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 v1.63.0 8 months ago
api.md api.md: add missing backtick to GET searchpaths doc (#11459) 8 months ago
build_dist.sh client/web: switch to using prebuilt web client assets 1 year ago
build_docker.sh Revert "cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017)" (#11669) 7 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 go.mod: bump github.com/gaissmai/bart 8 months ago
go.mod.sri go.mod.sri: update SRI hash for go.mod changes 7 months ago
go.sum go.mod: bump github.com/gaissmai/bart 8 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 8 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:

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:

WireGuard is a registered trademark of Jason A. Donenfeld.