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Joe Tsai 1f7479466e
util/deephash: use sha256x (#5339)
Switch deephash to use sha256x.Hash.

We add sha256x.HashString to efficiently hash a string.
It uses unsafe under the hood to convert a string to a []byte.
We also modify sha256x.Hash to export the underlying hash.Hash
for testing purposes so that we can intercept all hash.Hash calls.

Performance:

	name                 old time/op    new time/op    delta
	Hash-24                19.8µs ± 1%    19.2µs ± 1%  -3.01%  (p=0.000 n=10+10)
	HashPacketFilter-24    2.61µs ± 0%    2.53µs ± 1%  -3.01%  (p=0.000 n=8+10)
	HashMapAcyclic-24      31.3µs ± 1%    29.8µs ± 0%  -4.80%  (p=0.000 n=10+9)
	TailcfgNode-24         1.83µs ± 1%    1.82µs ± 2%    ~     (p=0.305 n=10+10)
	HashArray-24            344ns ± 2%     323ns ± 1%  -6.02%  (p=0.000 n=9+10)

The performance gains is not as dramatic as sha256x over sha256 due to:
1. most of the hashing already occurring through the direct memory hashing logic, and
2. what does not go through direct memory hashing is slowed down by reflect.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
.bencher bencher: add config to suppress failures on benchmark regressions. 3 years ago
.github .github/workflows: use a matrix for staticcheck GOOS/GOARCHes 2 years ago
atomicfile atomicfile: don't Chmod on windows 4 years ago
chirp all: use any instead of interface{} 3 years ago
client/tailscale all: require Go 1.19 2 years ago
cmd util/deephash: use sha256x (#5339) 2 years ago
control tailcfg, control/controlclient: add PingRequest.URLIsNoise [capver 38] 2 years ago
derp all: use syncs.AtomicValue 2 years ago
disco all: migrate more code code to net/netip directly 2 years ago
docs docs/k8s: add prefix to (#5167) 2 years ago
envknob ipn/ipnlocal: reject tailscale up --ssh if disabled on tailnet 3 years ago
health cmd/tailscale: surface authentication errors in status.Health (#4748) 3 years ago
hostinfo hostinfo, net/netcheck: use CutPrefix 2 years ago
internal/tooldeps .github/workflows: add gofmt (goimports) check 2 years ago
ipn tailcfg, control/controlclient: make Debug settings sticky in a map session [capver 37] 2 years ago
jsondb jsondb: small package to load/save JSON DBs. 2 years ago
kube all: use any instead of interface{} 3 years ago
log wasm: drop pprof dependency 2 years ago
logpolicy logtail,logpolicy: tweak minor cosmetic things 2 years ago
logtail cmd/tsconnect: make logtail uploading work 2 years ago
metrics all: use testingutil.MinAllocsPerRun 3 years ago
net net/dnscache: try IPv6 addresses first (#5349) 2 years ago
packages/deb all: use any instead of interface{} 3 years ago
paths all: use syncs.AtomicValue 2 years ago
portlist syncs, all: move to using Go's new atomic types instead of ours 2 years ago
prober syncs, all: move to using Go's new atomic types instead of ours 2 years ago
safesocket all: gofmt for Go 1.19 2 years ago
scripts installer.sh: add manjaro-arm & EndeavourOS. 2 years ago
smallzstd smallzstd: new package that constructs zstd small encoders/decoders. 4 years ago
ssh/tailssh syncs, all: move to using Go's new atomic types instead of ours 2 years ago
syncs syncs: add generic AtomicValue 2 years ago
tailcfg tailcfg, control/controlclient: add PingRequest.URLIsNoise [capver 38] 2 years ago
tempfork all: gofmt for Go 1.19 2 years ago
tka tka: stable text representation of AUMHash 2 years ago
tool .github/workflows: add tsconnect static build to wasm GitHub action 2 years ago
tsconst net/interfaces/windows: update Tailscale interface detection logic to 3 years ago
tsnet tsnet: cleanup resources upon start failure (#5301) 2 years ago
tstest all: use syncs.AtomicValue 2 years ago
tstime tstime/mono: fix Before function comment 3 years ago
tsweb all: gofmt for Go 1.19 2 years ago
types types/opt: support an explicit "unset" value for Bool 2 years ago
util util/deephash: use sha256x (#5339) 2 years ago
version all: use syncs.AtomicValue 2 years ago
wf all: convert more code to use net/netip directly 2 years ago
wgengine net/netcheck: try ICMP if UDP is blocked (#5056) 2 years ago
words words: The lists continue to drag-on. (#4780) 3 years ago
.gitattributes .: add .gitattributes entry to use Go hunk-header driver 3 years ago
.gitignore Makefile: update make spk target to use the new go spk builder 3 years ago
ALPINE.txt Docker: add ALPINE.txt to manage alpine versions 2 years ago
AUTHORS
CODE_OF_CONDUCT.md
Dockerfile docs/k8s: use job control in run.sh 2 years ago
Dockerfile.base Dockerfile: bump alpine to 3.16 2 years ago
LICENSE LICENSE: Reformat for Github 4 years ago
Makefile cmd/derper: add depaware.txt 2 years ago
PATENTS
README.md all: require Go 1.19 2 years ago
SECURITY.md Add a SECURITY.md for vulnerability reports. 5 years ago
VERSION.txt VERSION.txt: this is v1.29.0 2 years ago
api.md api.md: added missing quote to POST DNS Searchpaths request body example 2 years ago
build_dist.sh build_dist.sh: add --box and --extra-small flag to produce smaller and boxed binaries 2 years ago
build_docker.sh Dockerfile: bump alpine to 3.16 2 years ago
go.mod build(deps): bump github.com/u-root/u-root from 0.8.0 to 0.9.0 2 years ago
go.sum build(deps): bump github.com/u-root/u-root from 0.8.0 to 0.9.0 2 years ago
go.toolchain.branch go.toolchain.rev: switch to Go 1.19rc2+ 2 years ago
go.toolchain.rev all: require Go 1.19 2 years ago
pull-toolchain.sh go.toolchain.rev: add update script 3 years ago
shell.nix shell.nix: update Go toolchain to 1.19 2 years ago
staticcheck.conf staticcheck.conf: remove unnecessary warning 3 years ago
version-embed.go Docker: add ALPINE.txt to manage alpine versions 2 years ago

README.md

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains all the open source Tailscale client code and the tailscaled daemon and tailscale CLI tool. The tailscaled daemon runs on Linux, Windows and macOS, and to varying degrees on FreeBSD, OpenBSD, and Darwin. (The Tailscale iOS and Android apps use this repo's code, but this repo doesn't contain the mobile GUI code.)

The Android app is at https://github.com/tailscale/tailscale-android

The Synology package is at https://github.com/tailscale/tailscale-synology

Using

We serve packages for a variety of distros 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 that are not open source.

Building

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.

We require the latest Go release, currently Go 1.19.

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.

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.