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Brad Fitzpatrick db2436c7ff wgengine/magicsock: don't interrupt endpoint updates, merge all mutex into one
Before, endpoint updates were constantly being interrupted and resumed
on Linux due to tons of LinkChange messages from over-zealous Linux
netlink messages (from router_linux.go)

Now that endpoint updates are fast and bounded in time anyway, just
let them run to completion, but note that another needs to be
scheduled after.

Now logs went from pages of noise to just:

root@taildoc:~# grep -i -E 'stun|endpoint update' log
2020/03/13 08:51:29 magicsock.Conn: starting endpoint update (initial)
2020/03/13 08:51:30 magicsock.Conn.ReSTUN: endpoint update active, need another later ("link-change-minor")
2020/03/13 08:51:31 magicsock.Conn: starting endpoint update (link-change-minor)
2020/03/13 08:51:31 magicsock.Conn.ReSTUN: endpoint update active, need another later ("link-change-minor")
2020/03/13 08:51:33 magicsock.Conn: starting endpoint update (link-change-minor)
2020/03/13 08:51:33 magicsock.Conn.ReSTUN: endpoint update active, need another later ("link-change-minor")
2020/03/13 08:51:35 magicsock.Conn: starting endpoint update (link-change-minor)
2020/03/13 08:51:35 magicsock.Conn.ReSTUN: endpoint update active, need another later ("link-change-minor")

Or, seen in another run:

2020/03/13 08:45:41 magicsock.Conn: starting endpoint update (periodic)
2020/03/13 08:46:09 magicsock.Conn: starting endpoint update (periodic)
2020/03/13 08:46:21 magicsock.Conn: starting endpoint update (link-change-major)
2020/03/13 08:46:37 magicsock.Conn: starting endpoint update (periodic)
2020/03/13 08:47:05 magicsock.Conn: starting endpoint update (periodic)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-03-13 09:34:11 -07:00
.github Revert "update CI and everything to Go 1.14." 2020-03-06 13:45:54 -08:00
atomicfile Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
cmd controlclient/netmap: write our own b.ConciseDiffFrom(a) function. 2020-03-12 23:01:08 -04:00
control/controlclient Fix staticcheck complaint. 2020-03-12 23:33:51 -04:00
derp derp: test that client a->b and a->c relaying do not interfere 2020-03-12 14:42:48 -04:00
ipn ipn: Prefs.String(): print the current derp setting. 2020-03-13 00:43:19 -04:00
logpolicy logpolicy: automatically figure out paths and filenames. 2020-02-19 18:52:41 -08:00
logtail logtail/filch: use x/sys/unix instead of syscall. 2020-02-13 23:56:39 -08:00
metrics metrics: add a LabelMap type for variables with 1 label dimension. 2020-03-04 13:22:50 -08:00
net net/nettest: new package with net-like testing primitives 2020-03-12 14:42:48 -04:00
netcheck netcheck: work behind UDP-blocked networks again, add tests 2020-03-12 14:49:06 -07:00
paths paths: use /var/db for state on BSDs, and /var/run for sockets. 2020-03-03 17:49:31 -08:00
portlist portlist: add a lint ignore for unused function. 2020-02-10 23:50:06 -08:00
ratelimit Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
safesocket safesocket: make some effort to create parent directory of sock 2020-03-03 11:47:21 -08:00
stun netcheck: work behind UDP-blocked networks again, add tests 2020-03-12 14:49:06 -07:00
stunner stunner: quiet a harmless log warning 2020-03-12 14:14:23 -07:00
syncs syncs: add new package for extra sync types 2020-03-12 11:13:33 -07:00
tailcfg tailcfg.NetInfo: add a .String() renderer. 2020-03-13 01:29:47 -04:00
tempfork/osexec Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
testy Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
tsweb wgengine/monitor: don't call LinkChange when interfaces look unchanged 2020-03-10 11:03:19 -07:00
types types/logger: add adapters for Logf to std Logger/Writer 2020-03-06 12:00:24 -08:00
version version: bump OSS version datestamp. 2020-03-11 10:47:37 -07:00
wgengine wgengine/magicsock: don't interrupt endpoint updates, merge all mutex into one 2020-03-13 09:34:11 -07:00
.gitattributes .gitattributes: add a smudge filter for go.mod. 2020-02-19 20:02:02 -05:00
.gitignore cmd/relaynode: drop local --acl-file in favour of central packet filter. 2020-02-20 00:15:43 -05:00
AUTHORS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
CODE_OF_CONDUCT.md Add a code of conduct. 2020-02-10 22:16:30 -08:00
Dockerfile Revert "update CI and everything to Go 1.14." 2020-03-06 13:45:54 -08:00
LICENSE Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
PATENTS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
README.md Revert "update CI and everything to Go 1.14." 2020-03-06 13:45:54 -08:00
SECURITY.md Add a SECURITY.md for vulnerability reports. 2020-02-11 10:26:41 -08:00
go.mod go.mod: bump wireguard-go version. 2020-03-11 10:32:50 -07:00
go.sum go.mod: bump wireguard-go version. 2020-03-11 10:32:50 -07:00

README.md

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 support the latest Go release and any Go beta or release candidate builds (currently Go 1.13.x or 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.