Commit Graph

2348 Commits

Author SHA1 Message Date
David Anderson
22507adf54 wgengine/magicsock: stop depending on UpdateDst in legacy codepaths.
This makes connectivity between ancient and new tailscale nodes slightly
worse in some cases, but only in cases where the ancient version would
likely have failed to get connectivity anyway.

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-01-14 12:56:48 -08:00
Brad Fitzpatrick
017dcd520f tsweb: export VarzHandler 2021-01-14 11:49:44 -08:00
Brad Fitzpatrick
c1dabd9436 control/controlclient: let clients opt in to Sharer-vs-User split model
Updates tailscale/corp#1183
2021-01-13 15:03:15 -08:00
Josh Bleecher Snyder
b38fa7de29 go.mod: update to latest wireguard-go 2021-01-13 14:41:25 -08:00
Josh Bleecher Snyder
020084e84d wgengine: adapt to removal of wgcfg.Key in wireguard-go 2021-01-13 14:39:34 -08:00
Smitty
2bf49ddf90 Provide example when format string is rate limited
Here's an example log line in the new format:
    [RATE LIMITED] format string "open-conn-track: timeout opening %v; no associated peer node" (example: "open-conn-track: timeout opening ([ip] => [ip]); no associated peer node")
This should make debugging logging issues a bit easier, and give more
context as to why something was rate limited. This change was proposed
in a comment on #1110.

Signed-off-by: Smitty <me@smitop.com>
2021-01-13 13:57:23 -08:00
Denton Gentry
ce058c8280
Revert "Add logtail tests (#1114)" (#1116)
This reverts commit e4f53e9b6f.

At least two of these tests are flakey, reverting until they can be
made more robust.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 15:48:11 -08:00
Smitty
b2a08ddacd wgengine/tsdns: return NOERROR instead of NOTIMP for most records
This is what every other DNS resolver I could find does, so tsdns
should do it to. This also helps avoid weird error messages about
non-existent records being unimplemented, and thus fixes #848.

Signed-off-by: Smitty <me@smitop.com>
2021-01-12 15:12:53 -08:00
Denton Gentry
e4f53e9b6f
Add logtail tests (#1114)
* logtail: test parseAndRemoveLogLevel()

Signed-off-by: Denton Gentry <dgentry@tailscale.com>

* logtail: test JSON log encoding.

Expand TestUploadMessages to also exercise the encoding functions
in logtail, like JSON logging and timestamps.

Other tests frequently send logs but a) don't check the result and
b) do so by happenstance, such that the lines in encode() were not
consistently being exercised and leading to spurious changes in
code coverage.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>

* logtail: add a test for drainPendingMessages

Make the client buffer some messages before the upload server
becomes available.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>

* logtail: use %q, raw strings, and io.WriteString

%q escapes binary characters for us.

raw strings avoid so much backslash escaping

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 13:31:45 -08:00
Brad Fitzpatrick
b987b2ab18 control/controlclient: treat node sharer as owner for display purposes
This make clients (macOS, Windows, tailscale status) show the node
sharer's profile rather than the node owner (which may be anonymized).

Updates #992
2021-01-12 12:15:35 -08:00
Brad Fitzpatrick
7acd3397d5 README: names of contributors, link to them instead 2021-01-12 08:24:32 -08:00
Brad Fitzpatrick
9d73f84a71 tailcfg, control/controlclient: make MapResponse.CollectServices an opt.Bool
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-12 08:08:00 -08:00
Christina Wen
a746ff5de7 API.md: add documentation for deleting a device
Signed-off-by: Christina Wen <christina@tailscale.com>
2021-01-12 06:01:00 -08:00
Christina Wen
8d7ddf5e94 API.md: rename "domain" to "tailnet"
Signed-off-by: Christina Wen <christina@tailscale.com>
2021-01-12 06:01:00 -08:00
Denton Gentry
ac42757cd7 netcheck: use reflect in sortRegions test.
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
43e060b0e5 netcheck: test sortRegions
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
8349e10907 magicsock: add description of testClosingContext
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
b771a1363b logtail: start a local server for TestFastShutdown
Right now TestFastShutdown tries to upload logs to localhost:1234,
which will most likely respond with an error. However if one has an
actual service running on port 1234, it would receive a connection
attempting to POST every time the unit test runs.

Start a local server and direct the upload there instead.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
2e9728023b magicsock: test error case in sendDiscoMessage
In sendDiscoMessage there is a check of whether the connection is
closed, which is not being reliably exercised by other tests.
This shows up in code coverage reports, the lines of code in
sendDiscoMessage are alternately added and subtracted from
code coverage.

Add a test to specifically exercise and verify this code path.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
2c328da094 logtail: add a test to upload logs to local server
Start an HTTP server to accept POST requests, and upload some logs to
it. Check that uploaded logs were received.

Code in logtail:drainPending was not being reliably exercised by other
tests. This shows up in code coverage reports, as lines of code in
drainPending are alternately added and subtracted from code coverage.
This test will reliably exercise and verify this code.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
0aed59b691 portlist: add a test for SameInodes
Exercise all cases.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
07e4009e15 portlist: fully exercise lessThan in tests
All cases in lessThan are not reliably exercised by other tests.
This shows up in code coverage metrics as lines in lessThan are
alternately added and removed from coverage.

Add a test case to systematically test all conditions.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Denton Gentry
0aa55bffce magicsock: test error case in derpWriteChanOfAddr
In derpWriteChanOfAddr when we call derphttp.NewRegionClient(),
there is a check of whether the connection is already errored and
if so it returns before grabbing the lock. The lock might already
be held and would be a deadlock.

This corner case is not being reliably exercised by other tests.
This shows up in code coverage reports, the lines of code in
derpWriteChanOfAddr are alternately added and subtracted from
code coverage.

Add a test to specifically exercise this code path, and verify that
it doesn't deadlock.

This is the best tradeoff I could come up with:
+ the moment code calls Err() to check if there is an error, we
  grab the lock to make sure it would deadlock if it tries to grab
  the lock itself.
+ if a new call to Err() is added in this code path, only the
  first one will be covered and the rest will not be tested.
+ this test doesn't verify whether code is checking for Err() in
  the right place, which ideally I guess it would.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-12 04:29:28 -08:00
Brad Fitzpatrick
85e54af0d7 wgengine: on TCP connect fail/timeout, log some clues about why it failed
So users can see why things aren't working.

A start. More diagnostics coming.

Updates #1094
2021-01-11 22:09:09 -08:00
Brad Fitzpatrick
5eeaea9ef9 net/packet: add TCPFlag type and some more constants
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-11 22:09:09 -08:00
Brad Fitzpatrick
ad3fb6125d net/flowtrack: add Tuple.String method
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-11 22:09:09 -08:00
Brad Fitzpatrick
d6e9fb1df0 all: adjust Unix permissions for those without umasks
Fixes tailscale/corp#1165

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-11 19:24:41 -08:00
Brad Fitzpatrick
6b08303b0f Dockerfile: add big warning banner
Updates #504
2021-01-11 19:23:47 -08:00
Brad Fitzpatrick
676b5b7946 net/netcheck: improve the preferred DERP hysteresis
Users in Amsterdam (as one example) were flipping back and forth
between equidistant London & Frankfurt relays too much.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-11 14:50:47 -08:00
Sonia Appasamy
024671406b
ipn: only send services in Hostinfo if Tailnet has opted-in to services collection (#1107)
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
2021-01-11 17:24:32 -05:00
Brad Fitzpatrick
f85769b1ed wgengine/magicsock: drop netaddr.IPPort cache
netaddr.IP no longer allocates, so don't need a cache or all its associated
code/complexity.

This totally removes groupcache/lru from the deps.

Also go mod tidy.
2021-01-11 13:23:04 -08:00
Brad Fitzpatrick
a80446c026 Update depaware (removes lru from wgengine/filter) 2021-01-11 13:17:18 -08:00
Brad Fitzpatrick
4d15e954bd net/flowtrack: add new package to specialize groupcache/lru key type
Reduces allocs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-01-11 13:08:03 -08:00
Naman Sood
f69e46175d
wengine/netstack: bump gvisor to latest version
* wengine/netstack: bump gvisor to latest version

Signed-off-by: Naman Sood <naman@tailscale.com>

* update dependencies

Signed-off-by: Naman Sood <naman@tailscale.com>

* Don't change hardcoded IP

Signed-off-by: Naman Sood <naman@tailscale.com>
2021-01-11 15:46:48 -05:00
Brad Fitzpatrick
8b0112649a wgengine/netstack: don't build netstack on 32-bit platforms
See google/gvisor#5241
2021-01-11 09:56:05 -08:00
Brad Fitzpatrick
5aa5db89d6 cmd/tailscaled, wgengine/netstack: add start of gvisor userspace netstack work
Not usefully functional yet (mostly a proof of concept), but getting
it submitted for some work @namansood is going to do atop this.

Updates #707
Updates #634
Updates #48
Updates #835
2021-01-11 09:31:14 -08:00
Brad Fitzpatrick
5efb0a8bca cmd/tailscale: change formatting of "tailscale status"
* show DNS name over hostname, removing domain's common MagicDNS suffix.
  only show hostname if there's no DNS name.
  but still show shared devices' MagicDNS FQDN.

* remove nerdy low-level details by default: endpoints, DERP relay,
  public key.  They're available in JSON mode still for those who need
  them.

* only show endpoint or DERP relay when it's active with the goal of
  making debugging easier. (so it's easier for users to understand
  what's happening) The asterisks are gone.

* remove Tx/Rx numbers by default for idle peers; only show them when
  there's traffic.

* include peers' owner login names

* add CLI option to not show peers (matching --self=true, --peers= also
  defaults to true)

* sort by DNS/host name, not public key

* reorder columns
2021-01-10 12:11:22 -08:00
Brad Fitzpatrick
c09d5a9e28 go.mod: bump wireguard-go to match our meta repo 2021-01-08 21:15:32 -08:00
Brad Fitzpatrick
b5b9866ba2 wgengine/magicsock: copy self DNS name to PeerStatus, re-fill OS
The OS used to be sent back from the server but that has since
been removed as being redundant.
2021-01-08 20:55:57 -08:00
Brad Fitzpatrick
a4cc31e7d8 go.sum: update 2021-01-08 20:55:03 -08:00
Josh Bleecher Snyder
1271e135cd wgengine/tstun: initialize wireguard-go TUN parameters
This will enable us to remove the corresponding code from
our fork of wireguard-go.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-01-08 17:22:04 -08:00
Josh Bleecher Snyder
18471a8792 ipn: close logger at the end of TestLocalLogLines
If any goroutine continues to use the logger in TestLocalLogLines
after the test finishes, the test panics.

The culprit for this was wireguard-go; the previous commit fixed that.
This commit adds suspenders: When the test is done, make logging calls
into no-ops.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-01-08 17:10:48 -08:00
Josh Bleecher Snyder
1e4604f60e wgengine: quiet some wireguard-go logging
The log lines that wireguard-go prints as it starts
and stops its worker routines are mostly noise.
They also happen after other work is completed,
which causes failures in some of the log testing packages.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-01-08 17:10:48 -08:00
Josh Bleecher Snyder
c580d2eab1 go.mod: change wireguard-go version spelling
Our toolchains disagree about the spelling.
Sigh.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-01-08 15:58:11 -08:00
Josh Bleecher Snyder
53f9dcdf05 go.mod: update wireguard-go to fix windows build failure
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-01-08 15:56:45 -08:00
Josh Bleecher Snyder
80c33f4fa1 go.mod: update to latest wireguard-go 2021-01-08 15:44:07 -08:00
Josh Bleecher Snyder
e0c4ffa71f wgengine/tsdns: respond with any available addrs for ALL queries
This appears to have been the intent of the previous code,
but in practice, it only returned A records.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-01-08 14:23:11 -08:00
Denton Gentry
fa3e8e1a28 Add names to test cases in ipn/local_test.go.
There are so many now that just a number doesn't work well.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-08 10:23:32 -08:00
Denton Gentry
67ebc7c0e7 Allow 2021 in LICENSE header.
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-08 10:23:32 -08:00
Denton Gentry
02c34881b5 Add more tests for Direct.
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-01-08 10:23:32 -08:00