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Mihai Parparita 7330aa593e all: avoid repeated default interface lookups
On some platforms (notably macOS and iOS) we look up the default
interface to bind outgoing connections to. This is both duplicated
work and results in logspam when the default interface is not available
(i.e. when a phone has no connectivity, we log an error and thus cause
more things that we will try to upload and fail).

Fixed by passing around a netmon.Monitor to more places, so that we can
use its cached interface state.

Fixes #7850
Updates #7621

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
1 year ago
.bencher bencher: add config to suppress failures on benchmark regressions. 3 years ago
.github .github: Bump ruby/action-slack from 3.0.0 to 3.2.1 1 year ago
atomicfile various: add golangci-lint, fix issues (#7905) 1 year ago
chirp all: update copyright and license headers 1 year ago
client/tailscale various: add golangci-lint, fix issues (#7905) 1 year ago
cmd all: avoid repeated default interface lookups 1 year ago
control all: avoid repeated default interface lookups 1 year ago
derp all: avoid repeated default interface lookups 1 year ago
disco all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork 1 year ago
docs all: update copyright and license headers 1 year ago
doctor doctor/permissions: add new check to print process permissions 1 year ago
envknob envknob,net/tstun,wgengine: use TS_DEBUG_MTU consistently 1 year ago
health health, net/tlsdial: add healthcheck for self-signed cert 1 year ago
hostinfo ci: add more lints (#7909) 1 year ago
internal/tooldeps various: add golangci-lint, fix issues (#7905) 1 year ago
ipn all: avoid repeated default interface lookups 1 year ago
jsondb all: update copyright and license headers 1 year ago
kube ipn/store: add support for stores to hook into a custom dialer 1 year ago
licenses licenses: update win/apple licenses 1 year ago
log all: avoid repeated default interface lookups 1 year ago
logpolicy all: avoid repeated default interface lookups 1 year ago
logtail all: move network monitoring from wgengine/monitor to net/netmon 1 year ago
metrics metrics: add SetInt64 to ease using LabelMap for gauge metrics 1 year ago
net all: avoid repeated default interface lookups 1 year ago
packages/deb all: update copyright and license headers 1 year ago
paths all: update copyright and license headers 1 year ago
portlist various: add golangci-lint, fix issues (#7905) 1 year ago
prober all: avoid repeated default interface lookups 1 year ago
release release/dist/cli: add --verbose to print subcommand output 1 year ago
safesocket safesocket: enable test to run on Windows unpriviliged 1 year ago
scripts scripts/installer.sh: check Photon OS version with pkg server. 1 year ago
smallzstd all: update copyright and license headers 1 year ago
ssh/tailssh various: add golangci-lint, fix issues (#7905) 1 year ago
syncs syncs: relax TestWatchMultipleValues timing on Windows 1 year ago
tailcfg tailcfg: make SelfNodeV4MasqAddrForThisPeer a pointer 1 year ago
tempfork net/tstun/table: add initial RoutingTable implementation 1 year ago
tka various: add golangci-lint, fix issues (#7905) 1 year ago
tool various: add golangci-lint, fix issues (#7905) 1 year ago
tsconst all: update copyright and license headers 1 year ago
tsnet all: avoid repeated default interface lookups 1 year ago
tstest all: move network monitoring from wgengine/monitor to net/netmon 1 year ago
tstime tstime/rate: add Value (#7491) 1 year ago
tsweb tsweb: move varz handler(s) into separate modules 1 year ago
types wgengine/magicsock, types/nettype, etc: finish ReadFromUDPAddrPort netip migration 1 year ago
util various: add golangci-lint, fix issues (#7905) 1 year ago
version version/mkversion: don't break on tagged go.mod entries 1 year ago
wf all: update copyright and license headers 1 year ago
wgengine all: avoid repeated default interface lookups 1 year ago
words words: what?! a llama?! he's supposed to be dead! (#7623) 1 year ago
.gitattributes .: add .gitattributes entry to use Go hunk-header driver 2 years ago
.gitignore release: open-source release build logic for unix packages 1 year ago
.golangci.yml ci: add more lints (#7909) 1 year ago
ALPINE.txt Docker: add ALPINE.txt to manage alpine versions 2 years ago
AUTHORS Move Linux client & common packages into a public repo. 4 years ago
CODE_OF_CONDUCT.md Add a code of conduct. 4 years ago
Dockerfile Dockerfile: fix docker build 1 year ago
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LICENSE all: update tools that manage copyright headers 1 year ago
Makefile Makefile: add help text to Makefile 1 year ago
PATENTS Move Linux client & common packages into a public repo. 4 years ago
README.md all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork 1 year ago
SECURITY.md Add a SECURITY.md for vulnerability reports. 4 years ago
VERSION.txt VERSION.txt: this is 1.39 1 year ago
api.md api.md: update example auth key value 1 year ago
build_dist.sh build_dist.sh: make cross-compilation friendly 1 year ago
build_docker.sh Dockerfile: fix docker build 1 year ago
flake.lock nix: update nixpkgs flake, override go_1_20 for tailscale_go (#7139) 1 year ago
flake.nix go.mod.sri: update SRI hash for go.mod changes 1 year ago
go.mod various: add golangci-lint, fix issues (#7905) 1 year ago
go.mod.sri go.mod.sri: update SRI hash for go.mod changes 1 year ago
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go.toolchain.branch go.toolchain.branch: update to Go 1.20 1 year ago
go.toolchain.rev go.toolchain.rev: update for go 1.20.3 1 year ago
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shell.nix go.mod.sri: update SRI hash for go.mod changes 1 year ago
staticcheck.conf staticcheck.conf: remove unnecessary warning 3 years ago
update-flake.sh .github/workflows: add workflow to update go.mod Nix SRI hash 1 year ago
version-embed.go version: return correct Meta.MajorMinorPatch in non-dev builds 1 year ago
version_test.go all: update copyright and license headers 1 year 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 1.20. (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.