David Anderson 358cd3fd92 ipn: fix incorrect change tracking for packet filter.
ORder of operations to trigger a problem:
 - Start an already authed tailscaled, verify you can ping stuff.
 - Run `tailscale up`. Notice you can no longer ping stuff.

The problem is that `tailscale up` stops the IPN state machine before
restarting it, which zeros out the packet filter but _not_ the packet
filter hash. Then, upon restarting IPN, the uncleared hash incorrectly
makes the code conclude that the filter doesn't need updating, and so
we stay with a zero filter (reject everything) for ever.

The fix is simply to update the filterHash correctly in all cases,
so that running -> stopped -> running correctly changes the filter
at every transition.

Signed-off-by: David Anderson <danderson@tailscale.com>
2020-07-31 19:12:45 -07:00
2020-07-27 14:09:54 -07:00
2020-07-19 12:31:12 -07:00
2020-07-20 14:40:19 -07:00
2020-05-29 12:41:30 -07:00
2020-07-14 09:28:45 -07:00
2020-02-10 22:16:30 -08:00
2020-07-27 10:20:30 -07:00
2020-07-28 11:49:56 -07:00

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains all the open source Tailscale code. It currently includes the Linux client.

The Linux client is currently cmd/relaynode, but will soon be replaced by cmd/tailscaled.

Using

We serve packages for a variety of distros at https://pkgs.tailscale.com .

Building

go install tailscale.com/cmd/tailscale{,d}

We only guarantee to support the latest Go release and any Go beta or release candidate builds (currently Go 1.14) 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

under_construction.gif

PRs welcome, but we are still working out our contribution process and tooling.

We require Developer Certificate of Origin Signed-off-by lines in commits.

About Us

We are apenwarr, bradfitz, crawshaw, danderson, dfcarney, from Tailscale Inc. You can learn more about us from our website.

WireGuard is a registered trademark of Jason A. Donenfeld.

Description
The easiest, most secure way to use WireGuard and 2FA.
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