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Josh Bleecher Snyder 744de615f1 health, wgenegine: fix receive func health checks for the fourth time The old implementation knew too much about how wireguard-go worked. As a result, it missed genuine problems that occurred due to unrelated bugs. This fourth attempt to fix the health checks takes a black box approach. A receive func is healthy if one (or both) of these conditions holds: * It is currently running and blocked. * It has been executed recently. The second condition is required because receive functions are not continuously executing. wireguard-go calls them and then processes their results before calling them again. There is a theoretical false positive if wireguard-go go takes longer than one minute to process the results of a receive func execution. If that happens, we have other problems. Updates #1790 Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>		4 years ago
.github	.github/workflows: add --race tests on Linux and Windows	4 years ago
atomicfile	atomicfile: don't Chmod on windows	4 years ago
client/tailscale	ipn/ipnlocal, etc: require file sharing capability to send/recv files	4 years ago
cmd	cmd/tailscale/cli: don't do a simple up when in state NeedsLogin	4 years ago
control/controlclient	control/controlclient: fix signRegisterRequest log suppression check on Windows	4 years ago
derp	derp/derpmap: add São Paulo (derp11)	4 years ago
disco	Added 2 fuzzers	4 years ago
health	health, wgenegine: fix receive func health checks for the fourth time	4 years ago
internal	wgengine: move DNS configuration out of wgengine/router.	4 years ago
ipn	ipn/ipnlocal: always write files to partial files, even in buffered mode	4 years ago
log	log/filelogger: move our Windows disk file writing+rotation package here	4 years ago
logpolicy	logpolicy: set log target on windows based on a registry key (#1542 )	4 years ago
logtail	logtail: reduce PublicID.UnmarshalText from 2 allocs to 0	4 years ago
metrics	metrics: add LabelMap.GetFloat	4 years ago
net	net/tstun: split TUN events channel into up/down and MTU	4 years ago
paths	ipn, paths, cmd/tailscaled: remove LegacyConfigPath, relaynode migration	4 years ago
portlist	portlist: de-dup services on same (proto, port) on both IPv4/IPv6	4 years ago
safesocket	safesocket: remove/update some old TODOs	4 years ago
scripts	Allow 2021 in LICENSE header.	4 years ago
smallzstd	smallzstd: new package that constructs zstd small encoders/decoders.	4 years ago
syncs	syncs: disable TestWatchMultipleValues on Windows CI builds	4 years ago
tailcfg	control/controlclient, tailcfg: add Debug.SleepSeconds (mapver 19)	4 years ago
tempfork	tempfork/wireguard-windows/firewall: add.	4 years ago
tsconst	net/netns: add windows support.	4 years ago
tstest	tstest/natlab: use net.ErrClosed	4 years ago
tstime	tstime: add RandomDurationBetween helper	4 years ago
tsweb	tsweb: add num_goroutines expvar	4 years ago
types	types/netmap: remove some old TODOs	4 years ago
util	util/cmpver: move into OSS from corp repo.	4 years ago
version	version: simplify iOS detection now that we require Go 1.16	4 years ago
wgengine	health, wgenegine: fix receive func health checks for the fourth time	4 years ago
.gitattributes	.gitattributes: add a smudge filter for go.mod.	5 years ago
.gitignore	Revert "cmd/tailscaled: split package main into main shim + package"	4 years ago
AUTHORS	Move Linux client & common packages into a public repo.	5 years ago
CODE_OF_CONDUCT.md	Add a code of conduct.	5 years ago
Dockerfile	build_docker.sh, Dockerfile: fix bug with shell quoting	4 years ago
LICENSE	LICENSE: Reformat for Github	4 years ago
Makefile	wgengine/netstack: fix 32-bit build broken from prior commit	4 years ago
PATENTS	Move Linux client & common packages into a public repo.	5 years ago
README.md	Switch to Go 1.16.	4 years ago
SECURITY.md	Add a SECURITY.md for vulnerability reports.	5 years ago
VERSION.txt	VERSION.txt: this is 1.7.0.	4 years ago
api.md	api.md: clarify response behaviour for ACL POST endpoint	4 years ago
build_dist.sh	build_dist: fix after version refactor.	4 years ago
build_docker.sh	build_docker.sh, Dockerfile: fix bug with shell quoting	4 years ago
go.mod	go.mod: upgrade to latest wireguard-go	4 years ago
go.sum	go.mod: upgrade to latest wireguard-go	4 years ago
shell.nix	add nix-shell boilerplate (#1028 )	4 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 primarily on Linux; it also works to varying degrees on FreeBSD, OpenBSD, Darwin, and Windows.

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

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 only guarantee to support the latest Go release and any Go beta or release candidate builds (currently Go 1.16) in module mode. It might work in earlier Go versions or in GOPATH mode, but we're making no effort to keep those working.

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:

Legal

WireGuard is a registered trademark of Jason A. Donenfeld.