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Maisem Ali 3ae7140690 net/tstun: handle exit nodes in NAT configs
In the case where the exit node requires SNAT, we would SNAT all traffic not just the
traffic meant to go through the exit node. This was a result of the default route being
added to the routing table which would match basically everything.

In this case, we need to account for all peers in the routing table not just the ones
that require NAT.

Fix and add a test.

Updates tailscale/corp#8020

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
.bencher bencher: add config to suppress failures on benchmark regressions. 3 years ago
.github .github: test installer script in CI in docker 2 years ago
atomicfile various: add golangci-lint, fix issues (#7905) 2 years ago
chirp all: update copyright and license headers 2 years ago
client/tailscale various: add golangci-lint, fix issues (#7905) 2 years ago
cmd cmd/sniproxy: Set App name in tsnet hostinfo 2 years ago
control control/controlclient: use dnscache.Resolver for Noise client 2 years ago
derp all: avoid repeated default interface lookups 2 years ago
disco all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork 2 years ago
docs all: update copyright and license headers 2 years ago
doctor doctor/permissions: add new check to print process permissions 2 years ago
envknob envknob,net/tstun,wgengine: use TS_DEBUG_MTU consistently 2 years ago
health health, net/tlsdial: add healthcheck for self-signed cert 2 years ago
hostinfo ci: add more lints (#7909) 2 years ago
internal/tooldeps various: add golangci-lint, fix issues (#7905) 2 years ago
ipn ipn/ipnlocal: fix fmt format arg type mismatch in log line 2 years ago
jsondb all: update copyright and license headers 2 years ago
kube ipn/store: add support for stores to hook into a custom dialer 2 years ago
licenses licenses: update win/apple licenses 2 years ago
log all: avoid repeated default interface lookups 2 years ago
logpolicy all: avoid repeated default interface lookups 2 years ago
logtail all: move network monitoring from wgengine/monitor to net/netmon 2 years ago
metrics metrics: add SetInt64 to ease using LabelMap for gauge metrics 2 years ago
net net/tstun: handle exit nodes in NAT configs 2 years ago
packages/deb all: update copyright and license headers 2 years ago
paths all: update copyright and license headers 2 years ago
portlist various: add golangci-lint, fix issues (#7905) 2 years ago
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scripts .github: test installer script in CI in docker 2 years ago
smallzstd all: update copyright and license headers 2 years ago
ssh/tailssh ssh/tailssh: improve debug logging around revoked sessions 2 years ago
syncs syncs: add Map.Len to get the length of the Map 2 years ago
tailcfg ssh/tailssh: handle dialing multiple recorders and failing open 2 years ago
tempfork net/tstun/table: add initial RoutingTable implementation 2 years ago
tka various: add golangci-lint, fix issues (#7905) 2 years ago
tool various: add golangci-lint, fix issues (#7905) 2 years ago
tsconst all: update copyright and license headers 2 years ago
tsnet all: avoid repeated default interface lookups 2 years ago
tstest all: move network monitoring from wgengine/monitor to net/netmon 2 years ago
tstime tstime/rate: add Value (#7491) 2 years ago
tsweb tsweb: move varz handler(s) into separate modules 2 years ago
types net/packet: add NAT support for DCCP and GRE 2 years ago
util various: add golangci-lint, fix issues (#7905) 2 years ago
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wf all: update copyright and license headers 2 years ago
wgengine wgengine/magicsock: add hysteresis to endpoint selection 2 years ago
words words: charlotte 1 spell-checking-linter 0 (#7993) 2 years ago
.gitattributes .: add .gitattributes entry to use Go hunk-header driver 3 years ago
.gitignore release: open-source release build logic for unix packages 2 years ago
.golangci.yml ci: add more lints (#7909) 2 years ago
ALPINE.txt Docker: add ALPINE.txt to manage alpine versions 2 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 Dockerfile: fix docker build 2 years ago
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LICENSE all: update tools that manage copyright headers 2 years ago
Makefile Makefile: add help text to Makefile 2 years ago
PATENTS Move Linux client & common packages into a public repo. 5 years ago
README.md all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork 2 years ago
SECURITY.md Add a SECURITY.md for vulnerability reports. 5 years ago
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api.md api.md: update example auth key value 2 years ago
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build_docker.sh Dockerfile: fix docker build 2 years ago
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go.toolchain.branch go.toolchain.branch: update to Go 1.20 2 years ago
go.toolchain.rev go.toolchain.rev: update for go 1.20.3 2 years ago
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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.