Commit Graph

2584 Commits (38be964c2bfc650a69a5c92b75185eac94b388ae)
 

Author SHA1 Message Date
David Anderson 7fab244614 net/dns/resolver: don't spam logs on EHOSTUNREACH.
Fixes #1719.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Simeng He 0141390365 tstest/integration/testcontrol: add Server.AddPingRequest
Signed-off-by: Simeng He <simeng@tailscale.com>
3 years ago
David Anderson dfb1385fcc build_dist.sh: add a command to output the shell vars.
Some downstream distros eval'd version/version.sh to get at the shell variables
within their own build process. They can now `./build_dist.sh shellvars` to get
those.

Fixes #2058.

Signed-off-by: David Anderson <dave@natulte.net>
3 years ago
Josh Bleecher Snyder e92fd19484 wgengine/wglog: match upstream wireguard-go's code for wireguardGoString
It is a bit faster.

But more importantly, it matches upstream byte-for-byte,
which ensures there'll be no corner cases in which we disagree.

name        old time/op    new time/op    delta
SetPeers-8    3.58µs ± 0%    3.16µs ± 2%  -11.74%  (p=0.016 n=4+5)

name        old alloc/op   new alloc/op   delta
SetPeers-8    2.53kB ± 0%    2.53kB ± 0%     ~     (all equal)

name        old allocs/op  new allocs/op  delta
SetPeers-8      99.0 ± 0%      99.0 ± 0%     ~     (all equal)

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Christine Dodrill adaecd83c8
tstest/integration/vms: add DownloadImages test to download images (#2039)
The image downloads can take a significant amount of time for the tests.
This creates a new test that will download every distro image into the
local cache in parallel, optionally matching the distribution regex.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Christine Dodrill 607b7ab692
tstest/integration/vms: aggressively re-verify shasums (#2050)
I've run into a couple issues where the tests time out while a VM image
is being downloaded, making the cache poisoned for the next run. This
moves the hash checking into its own function and calls it much sooner
in the testing chain. If the hash check fails, the OS is redownloaded.

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
David Anderson df8a5d09c3 net/tstun: add a debug envvar to override tun MTU.
Signed-off-by: David Anderson <dave@natulte.net>
4 years ago
Christine Dodrill 6ce77b8eca
tstest/integration/vms: log qemu output (#2047)
Most of the time qemu will output nothing when it is running. This is
expected behavior. However when qemu is unable to start due to some
problem, it prints that to either stdout or stderr. Previously this
output wasn't being captured. This patch captures that output to aid in
debugging qemu issues.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Brad Fitzpatrick 58cc2cc921 tstest/integration/testcontrol: add Server.nodeLocked 4 years ago
David Anderson aa6abc98f3 build_dist.sh: fix after the change to version stamping.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a573779c5c version: bump date
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 5bf65c580d version: fix Short when link-stamped
And remove old SHORT, LONG deprecated variables.

Fixes tailscale/corp#1905

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ecfb2639cc ipn/ipnlocal: avoid initPeerAPIListener crash on certain concurrent actions
We were crashing on in initPeerAPIListener when called from
authReconfig when b.netMap is nil. But authReconfig already returns
before the call to initPeerAPIListener when b.netMap is nil, but it
releases the b.mu mutex before calling initPeerAPIListener which
reacquires it and assumes it's still nil.

The only thing that can be setting it to nil is setNetMapLocked, which
is called by ResetForClientDisconnect, Logout/logout, or Start, all of
which can happen during an authReconfig.

So be more defensive.

Fixes #1996

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 713c5c9ab1 net/{interfaces,netns}: change which build tag means mac/ios Network/System Extension
We used to use "redo" for that, but it was pretty vague.

Also, fix the build tags broken in interfaces_default_route_test.go from
a9745a0b68, moving those Linux-specific
tests to interfaces_linux_test.go.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill 0a655309c6
tstest/integration/vms: only build binaries once (#2042)
Previously this built the binaries for every distro. This is a bit
overkill given we are using static binaries. This patch makes us only
build once.

There was also a weird issue with how processes were being managed.
Previously we just killed qemu with Process.Kill(), however that was
leaving behind zombies. This has been mended to not only kill qemu but
also waitpid() the process so it doesn't become a zombie.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Christine Dodrill a282819026
tstest/integration/vms: fix OpenSUSE Leap 15.1 (#2038)
The OpenSUSE 15.1 image we are using (and conseqentially the only one
that is really available easily given it is EOL) has cloud-init
hardcoded to use the OpenStack metadata thingy. Other OpenSUSE Leap
images function fine with the NoCloud backend, but this one seems to
just not work with it. No bother, we can just pretend to be OpenStack.

Thanks to Okami for giving me an example OpenStack configuration seed
image.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Christine Dodrill 4da5e79c39
tstest/integration/vms: test on Arch Linux (#2040)
Arch is a bit of a weirder distro, however as a side effect it is much
more of a systemd purist experience. Adding it to our test suite will
make sure that we are working in the systemd happy path.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Maisem Ali 95e296fd96 cmd/tailscale/web: restrict web access to synology admins.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
4 years ago
David Anderson 5088af68cf version: remove all the redo stuff, only support embedding via go ldflags.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a321c24667 go.mod: update netaddr
Involves minor IPSetBuilder.Set API change.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 9794be375d tailcfg: add SetDNSRequest type
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill ca96357d4b
tstest/integration/vms: add OpenSUSE Leap 15.3 (#2026)
This distro is about to be released. OpenSUSE has historically had the
least coverage for functional testing, so this may prove useful in the
future.

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
David Anderson 33bc06795b go.mod: update for corp resync. 4 years ago
David Anderson c54cc24e87 util/dnsname: make ToFQDN take exactly 0 or 1 allocs for everything.
name                                    old time/op    new time/op    delta
ToFQDN/www.tailscale.com.-32              9.55ns ± 2%   12.13ns ± 3%  +27.03%  (p=0.000 n=10+10)
ToFQDN/www.tailscale.com-32               86.3ns ± 1%    40.7ns ± 1%  -52.86%  (p=0.000 n=10+9)
ToFQDN/.www.tailscale.com-32              86.5ns ± 1%    40.4ns ± 1%  -53.29%  (p=0.000 n=10+9)
ToFQDN/_ssh._tcp.www.tailscale.com.-32    12.8ns ± 2%    14.7ns ± 2%  +14.24%  (p=0.000 n=9+10)
ToFQDN/_ssh._tcp.www.tailscale.com-32      104ns ± 1%      45ns ± 0%  -57.16%  (p=0.000 n=10+9)

name                                    old alloc/op   new alloc/op   delta
ToFQDN/www.tailscale.com.-32               0.00B          0.00B          ~     (all equal)
ToFQDN/www.tailscale.com-32                72.0B ± 0%     24.0B ± 0%  -66.67%  (p=0.000 n=10+10)
ToFQDN/.www.tailscale.com-32               72.0B ± 0%     24.0B ± 0%  -66.67%  (p=0.000 n=10+10)
ToFQDN/_ssh._tcp.www.tailscale.com.-32     0.00B          0.00B          ~     (all equal)
ToFQDN/_ssh._tcp.www.tailscale.com-32       112B ± 0%       32B ± 0%  -71.43%  (p=0.000 n=10+10)

name                                    old allocs/op  new allocs/op  delta
ToFQDN/www.tailscale.com.-32                0.00           0.00          ~     (all equal)
ToFQDN/www.tailscale.com-32                 2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
ToFQDN/.www.tailscale.com-32                2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
ToFQDN/_ssh._tcp.www.tailscale.com.-32      0.00           0.00          ~     (all equal)
ToFQDN/_ssh._tcp.www.tailscale.com-32       2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson d7f6ef3a79 util/dnsname: add a benchmark for ToFQDN.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson caaefa00a0 util/dnsname: don't validate the contents of DNS labels.
DNS names consist of labels, but outside of length limits, DNS
itself permits any content within the labels. Some records require
labels to conform to hostname limitations (which is what we implemented
before), but not all.

Fixes #2024.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Christine Dodrill 2802a01b81
tstest/integration/vms: test vms as they are ready (#2022)
Instead of testing all the VMs at once when they are all ready, this
patch changes the testing logic so that the vms are tested as soon as
they register with testcontrol. Also limit the amount of VM ram used at
once with the `-ram-limit` flag. That uses a semaphore to guard resource
use.

Also document CentOS' sins.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Avery Pennarun eaa6507cc9 ipnlocal: in Start() fast path, don't forget to send Prefs.
The resulting empty Prefs had AllowSingleHosts=false and
Routeall=false, so that on iOS if you did these steps:
- Login and leave running
- Terminate the frontend
- Restart the frontend (fast path restart, missing prefs)
- Set WantRunning=false
- Set WantRunning=true
...then you would have Tailscale running, but with no routes. You would
also accidentally disable the ExitNodeID/IP prefs (symptom: the current
exit node setting didn't appear in the UI), but since nothing
else worked either, you probably didn't notice.

The fix was easy enough. It turns out we already knew about the
problem, so this also fixes one of the BUG entries in state_test.

Fixes: #1918 (BUG-1) and some as-yet-unreported bugs with exit nodes.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun 8a7d35594d ipnlocal: don't assume NeedsLogin immediately after StartLogout().
Previously, there was no server round trip required to log out, so when
you asked ipnlocal to Logout(), it could clear the netmap immediately
and switch to NeedsLogin state.

In v1.8, we added a true Logout operation. ipn.Logout() would trigger
an async cc.StartLogout() and *also* immediately switch to NeedsLogin.
Unfortunately, some frontends would see NeedsLogin and immediately
trigger a new StartInteractiveLogin() operation, before the
controlclient auth state machine actually acted on the Logout command,
thus accidentally invalidating the entire logout operation, retaining
the netmap, and violating the user's expectations.

Instead, add a new LogoutFinished signal from controlclient
(paralleling LoginFinished) and, upon starting a logout, don't update
the ipn state machine until it's received.

Updates: #1918 (BUG-2)
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Christine Dodrill 36cb69002a
tstest/integration/vms: regex-match distros using a flag (#2021)
If you set `-distro-regex` to match a subset of distros, only those
distros will be tested. Ex:

    $ go test -run-vm-tests -distro-regex='opensuse'

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Christine Dodrill e1b994f7ed
tstest/integration/vms: maintain distro info (#2020)
This lets us see the names of distros in our tests.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Brad Fitzpatrick fa548c5b96
tstest/integration/vms: fix bindhost lookup (#2012)
Don't try to do heuristics on the name. Use the net/interfaces package
which we already have to do this sort of stuff.

Fixes #2011

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill 14c1113d2b
tstest/integration/vms: copy locally built binaries (#2006)
Instead of pulling packages from pkgs.tailscale.com, we should use the
tailscale binaries that are local to this git commit. This exposes a bit
of the integration testing stack in order to copy the binaries
correctly.

This commit also bumps our version of github.com/pkg/sftp to the latest
commit.

If you run into trouble with yaml, be sure to check out the
commented-out alpine linux image complete with instructions on how to
use it.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Brad Fitzpatrick ca455ac84b net/tsaddr: simplify TailscaleServiceIP
netaddr allocated at the time this was written. No longer.

name                    old time/op  new time/op  delta
TailscaleServiceAddr-4  5.46ns ± 4%  1.83ns ± 3%  -66.52%  (p=0.008 n=5+5)

A bunch of the others can probably be simplified too, but this
was the only one with just an IP and not an IPPrefix.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick f21982f854 tstest/integration/vms: skip a test for now
Updates #2011

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Josh Bleecher Snyder ddf6c8c729 wgengine/magicsock: delete dead code
Co-authored-by: Adrian Dewhurst <adrian@tailscale.com>
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Christine Dodrill 4cfaf489ac
tstest/integration/vms: t.Log for VM output (#2007)
Previously we spewed a lot of output to stdout and stderr, even when
`-v` wasn't set. This is sub-optimal for various reasons. This patch
shunts that output to test logs so it only shows up when `-v` is set.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Adrian Dewhurst 6d6cf88d82 control/controlclient: use our fork of certstore
The cyolosecurity fork of certstore did not update its module name and
thus can only be used with a replace directive. This interferes with
installing using `go install` so I created a tailscale fork with an
updated module name.

Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
4 years ago
Christine Dodrill 1f72b6f812
tstest/integration/vms: use dynamically discovered bindhost (#1992)
Instead of relying on a libvirtd bridge address that you probably won't
have on your system.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Christine Dodrill 35749ec297
tstest/integration/vms: small cleanups (#1989)
Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Brad Fitzpatrick a04801e037 ipn/ipnlocal: ignore NetfilterMode pref on Synology
On clean installs we didn't set use iptables, but during upgrades it
looks like we could use old prefs that directed us to go into the iptables
paths that might fail on Synology.

Updates #1995
Fixes tailscale/tailscale-synology#57 (I think)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Crawshaw 82b217f82e cmd/tailscale: have web POST wait for authURL
Fixes #1939

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Crawshaw 50c976d3f1 cmd/tailscale: show web 'login' error message
For #1939

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Brad Fitzpatrick d2c4e75099 cmd/tailscale/cli: update URL in error message for Synology unsupported feature
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick cdd231cb7d cmd/tailscale/cli: don't warn about iptables=off on Synology
We don't use iptables on Synology, so don't scare the user.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill ba59c0391b
tstest/integration: add experimental integration test (#1966)
This will spin up a few vms and then try and make them connect to a
testcontrol server.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Josh Bleecher Snyder 60e920bf18 go.mod: go mod tidy
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder bb8ce48a6b logtail: allow changing log level concurrently
When tailscaled starts up, these lines run:

func run() error {
	// ...
	pol := logpolicy.New("tailnode.log.tailscale.io")
	pol.SetVerbosityLevel(args.verbose)
	// ...
}

If there are old log entries present, they immediate start getting uploaded. This races with the call to pol.SetVerbosityLevel.

This manifested itself as a test failure in tailscale.com/tstest/integration
when run with -race:

WARNING: DATA RACE
Read at 0x00c0001bc970 by goroutine 24:
  tailscale.com/logtail.(*Logger).Write()
      /Users/josh/t/corp/oss/logtail/logtail.go:517 +0x27c
  log.(*Logger).Output()
      /Users/josh/go/ts/src/log/log.go:184 +0x2b8
  log.Printf()
      /Users/josh/go/ts/src/log/log.go:323 +0x94
  tailscale.com/logpolicy.newLogtailTransport.func1()
      /Users/josh/t/corp/oss/logpolicy/logpolicy.go:509 +0x36c
  net/http.(*Transport).dial()
      /Users/josh/go/ts/src/net/http/transport.go:1168 +0x238
  net/http.(*Transport).dialConn()
      /Users/josh/go/ts/src/net/http/transport.go:1606 +0x21d0
  net/http.(*Transport).dialConnFor()
      /Users/josh/go/ts/src/net/http/transport.go:1448 +0xe4

Previous write at 0x00c0001bc970 by main goroutine:
  tailscale.com/logtail.(*Logger).SetVerbosityLevel()
      /Users/josh/t/corp/oss/logtail/logtail.go:131 +0x98
  tailscale.com/logpolicy.(*Policy).SetVerbosityLevel()
      /Users/josh/t/corp/oss/logpolicy/logpolicy.go:463 +0x60
  main.run()
      /Users/josh/t/corp/oss/cmd/tailscaled/tailscaled.go:178 +0x50
  main.main()
      /Users/josh/t/corp/oss/cmd/tailscaled/tailscaled.go:163 +0x71c

Goroutine 24 (running) created at:
  net/http.(*Transport).queueForDial()
      /Users/josh/go/ts/src/net/http/transport.go:1417 +0x4d8
  net/http.(*Transport).getConn()
      /Users/josh/go/ts/src/net/http/transport.go:1371 +0x5b8
  net/http.(*Transport).roundTrip()
      /Users/josh/go/ts/src/net/http/transport.go:585 +0x7f4
  net/http.(*Transport).RoundTrip()
      /Users/josh/go/ts/src/net/http/roundtrip.go:17 +0x30
  net/http.send()
      /Users/josh/go/ts/src/net/http/client.go:251 +0x4f0
  net/http.(*Client).send()
      /Users/josh/go/ts/src/net/http/client.go:175 +0x148
  net/http.(*Client).do()
      /Users/josh/go/ts/src/net/http/client.go:717 +0x1d0
  net/http.(*Client).Do()
      /Users/josh/go/ts/src/net/http/client.go:585 +0x358
  tailscale.com/logtail.(*Logger).upload()
      /Users/josh/t/corp/oss/logtail/logtail.go:367 +0x334
  tailscale.com/logtail.(*Logger).uploading()
      /Users/josh/t/corp/oss/logtail/logtail.go:289 +0xec


Rather than complicate the logpolicy API,
allow the verbosity to be adjusted concurrently.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder 1ece91cede go.mod: upgrade wireguard-windows, de-fork wireguard-go
Pull in the latest version of wireguard-windows.

Switch to upstream wireguard-go.
This requires reverting all of our import paths.

Unfortunately, this has to happen at the same time.
The wireguard-go change is very low risk,
as that commit matches our fork almost exactly.
(The only changes are import paths, CI files, and a go.mod entry.)
So if there are issues as a result of this commit,
the first place to look is wireguard-windows changes.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder ceaaa23962 wgengine/wglog: cache strings
We repeat many peers each time we call SetPeers.
Instead of constructing strings for them from scratch every time,
keep strings alive across iterations.

name        old time/op    new time/op    delta
SetPeers-8    3.58µs ± 1%    2.41µs ± 1%  -32.60%  (p=0.000 n=9+10)

name        old alloc/op   new alloc/op   delta
SetPeers-8    2.53kB ± 0%    1.30kB ± 0%  -48.73%  (p=0.000 n=10+10)

name        old allocs/op  new allocs/op  delta
SetPeers-8      99.0 ± 0%      16.0 ± 0%  -83.84%  (p=0.000 n=10+10)

We could reduce alloc/op 12% and allocs/op 23% if strs had
type map[string]strCache instead of map[string]*strCache,
but that wipes out the execution time impact.
Given that re-use is the most common scenario, let's optimize for it.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago