Commit Graph

1652 Commits (fec9490378604bf9acfecbdac915bebee66cac8c)
 

Author SHA1 Message Date
Steve Coffman fec9490378 Add docker build script to inject version information
Signed-off-by: Steve Coffman <steve@khanacademy.org>
3 years ago
Brad Fitzpatrick c55d26967b wgengine/magicsock: log more details of endpoints learned over disco
Also, don't try to use IPv6 LinkLocalUnicast addresses for now. Like endpoints
exchanged with control, we share them but don't yet use them.

Updates #1172
3 years ago
Brad Fitzpatrick 9f1b02699a tstime: add RandomDurationBetween helper
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a905ce5607 control/controlclient: add debug knob to not use control's endpoints 3 years ago
Brad Fitzpatrick 359055d3fa wgengine/magicsock: fix logging regression
c8c493f3d9 made it always say
`created=false` which scared me when I saw it, as that would've implied
things were broken much worse. Fortunately the logging was just wrong.
3 years ago
Brad Fitzpatrick b5628cee4e control/controlclient: add detail to verbose log about route skips 3 years ago
Brad Fitzpatrick edf64e0901 wgengine/magicsock: send, use endpoints in CallMeMaybe messages
Fixes #1172

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ec77b80c53 tailcfg, control/controlclient: add mapver 10: MapResponse.PeerSeenChange
This adds a more wire-efficient way of updating peers' Node.LastSeen times.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick b5b4992eff disco: support parsing/encoding endpoints in call-me-maybe frames
Updates #1172

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder d3dd7c6270 wgengine/magicsock: make legacy DstToString match Addrs
DstToString is used in two places in wireguard-go: Logging and uapi.

We are switching to use uapi for wireguard-go config.
To preserve existing behavior, we need the full set of addrs.

And for logging, having the full set of addrs seems useful.

(The Addrs method itself is slated for removal. When that happens,
the implementation will move to DstToString.)


Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 187e22a756 wgengine/magicsock: don't run the DERP cleanup so often
To save CPU and wakeups, don't run the DERP cleanup timer regularly
unless there is a non-home DERP connection open.

Also eliminates the goroutine, moving to a time.AfterFunc.

Updates #1034

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson ab9cccb292 cmd/tailscale/cli: require v4 and v6 default routes to be advertised together.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 78338ac029 types/logger: trim spaces from the rate-limited example message.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick b405644f5d api.md: add TOC 3 years ago
Josh Bleecher Snyder 5fe5402fcd Revert "wgengine/magicsock: shortcircuit discoEndpoint.heartbeat when its connection is closed"
This reverts commit 08baa17d9a.
It caused deadlocks due to lock ordering violations.
It was not the right fix, and thus should simply be reverted
while we look for the right fix (if we haven't already found it
in the interim; we've fixed other logging-after-test issues).

Fixes #1161
3 years ago
Josh Bleecher Snyder e4c075cd95 wgengine/magicsock: prevent log-after-test in TestTwoDevicePing 3 years ago
Brad Fitzpatrick edce91a8a6 wgengine/magicsock: fix a naked return bug/crash where we returned (nil, true)
The 'ok' from 'ipp, ok :=' above was the result parameter ok. Whoops.
3 years ago
Brad Fitzpatrick 51bd1feae4 wgengine/magicsock: add single element IPPort->endpoint cache in receive path
name           old time/op  new time/op  delta
ReceiveFrom-4  21.8µs ± 2%  20.9µs ± 2%  -4.27%  (p=0.000 n=10+10)

Updates #414

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson da4ec54756 tailcfg: remove v6-overlay debug option.
It's about to become a no-op in control.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 5c619882bc wgengine/magicsock: simplify ReceiveIPv4+DERP path
name           old time/op  new time/op  delta
ReceiveFrom-4  35.8µs ± 3%  21.9µs ± 5%  -38.92%  (p=0.008 n=5+5)

Fixes #1145
Updates #414

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 9936cffc1a wgengine: correctly track all node IPs in lazy config.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 3fa86a8b23 wgengine/magicsock: use relatively new netaddr.IPPort.IsZero method 3 years ago
Brad Fitzpatrick 4811236189 wgengine/magicsock: speed up BenchmarkReceiveFrom, store context.Done chan
context.cancelCtx.Done involves a mutex and isn't as cheap as I
previously assumed. Convert the donec method into a struct field and
store the channel value once. Our one magicsock.Conn gets one pointer
larger, but it cuts ~1% of the CPU time of the ReceiveFrom benchmark
and removes a bubble from the --svg output :)
3 years ago
Brad Fitzpatrick c78ed5b399 go.sum: update (forgotten after earlier wireguard-go update again) 3 years ago
Denton Gentry 013da6660e logtail: add tests
+ add a test for parseAndRemoveLogLevel()
+ add a test for drainPendingMessages()
+ test JSON log encoding including several special cases

Other tests frequently send logs but a) don't check the result and
b) do so by happenstance, such that the code in encode() was not
consistently being exercised and leading to spurious changes in
code coverage. These tests attempt to more systematically test
the logging function.

This is the second attempt to add these tests, the first attempt
(in https://github.com/tailscale/tailscale/pull/1114) had two issues:
1. httptest.NewServer creates multiple goroutine handlers, and
   logtail uses goroutines to upload, but the first version had no
   locking in the server to guard this.
   Moved data handling into channels to get synchronization.
2. The channel to notify the test of the arrival of data had a depth
   of 1, in cases where the Logger sent multiple uploads it would
   block the server.

This resulted in the first iteration of these tests being flaky,
and we reverted it.

This new version of the tests has passed with
    go test -race -count=10000
and seems solid.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry 8578b0445d tstun: add test to send a packet after Close()
This test serves two purposes:
+ check that Write() returns an error if the tstun has been
  closed.
+ ensure that the close-related code in tstun is exercised in
  a test case. We were getting spurious code coverage adds/drops
  based on timing of when the test case finished.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Josh Bleecher Snyder 7c1a9e8616 net/nettest: de-flake tests on Windows
Windows has a low resolution timer.
Some of the tests assumed that unblock takes effect immediately.

Consider:

t := time.Now()
elapsed := time.Now().After(t)

It seems plausible that elapsed should always be true.
However, with a low resolution timer, that might fail.

Change time.Now().After to !time.Now().Before,
so that unblocking always takes effect immediately.

Fixes #873.
3 years ago
Josh Bleecher Snyder a64d06f15c net/nettest: remove pointless checks in tests
If err == nil, then !errors.Is(err, anything).
3 years ago
Josh Bleecher Snyder 503db5540f net/nettest: add missing check at end of TestLimit
This appears to have been an oversight.
3 years ago
Josh Bleecher Snyder ed2169ae99 wgengine/magicsock: prevent logging after TestActiveDiscovery completes 3 years ago
Josh Bleecher Snyder 12bb949178 go.mod: bump to pull in minor wireguard-go changes 3 years ago
Josh Bleecher Snyder 63af950d8c wgengine/magicsock: adapt to wireguard-go without UpdateDst
22507adf54 stopped relying on
our fork of wireguard-go's UpdateDst callback.
As a result, we can unwind that code,
and the extra return value of ReceiveIPv{4,6}.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Denton Gentry 23c2dc2165
magicksock: remove TestConnClosing. (#1140)
Test is flakey, remove it and figure out what to do differently later.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
David Anderson e23b4191c4 wgengine/magicsock: disable legacy networking everywhere except TwoDevicePing.
TwoDevicePing is explicitly testing the behavior of the legacy codepath, everything
else is happy to assume that code no longer exists.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 0733c5d2e0 wgengine/magicsock: disable legacy behavior in a few more tests.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 57d95dd005 wgengine/magicsock: default legacy networking to off for some tests.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson a2463e8948 wgengine/magicsock: add an option to disable legacy peer handling.
Used in tests to ensure we're not relying on behavior we're going
to remove eventually.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson d456bfdc6d wgengine/magicsock: fix BenchmarkReceiveFrom.
Previously, this benchmark relied on behavior of the legacy
receive codepath, which I changed in 22507adf. With this
change, the benchmark instead relies on the new active discovery
path.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Josh Bleecher Snyder 2d837f79dc wgengine/magicsock: close test loggers once we're done with them
This is a big hammer approach to helping with #1132.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 08baa17d9a wgengine/magicsock: shortcircuit discoEndpoint.heartbeat when its connection is closed
This prevents us from continuing to do unnecessary work
(including logging) after the connection has closed.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 7c76435bf7 wgengine/magicsock: simplify
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder d2529affa2 wgengine/magicsock: quiet wireguard-go logging in tests
We already do this in newUserspaceEngineAdvanced.
Apply it to newMagicStack as well.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3ad7c2133a wgengine/userspace: make wireguard-go log silencing include peer routines
Also suppress log lines like:

peer(Kksd…ySmc) - Routine: sequential sender - stopped

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick b560386c1a net/packet, wgengine, tstun: add inter-node TSMP protocol for connect errors
This adds a new IP Protocol type, TSMP on protocol number 99 for
sending inter-tailscale messages over WireGuard, currently just for
why a peer rejects TCP SYNs (ACL rejection, shields up, and in the
future: nothing listening, something listening on that port but wrong
interface, etc)

Updates #1094
Updates tailscale/corp#1185

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 01e8b7fb7e go.mod: bump wireguard-go version.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 5611f290eb ipn, ipnserver: only require sudo on Linux for mutable CLI actions
This partially reverts d6e9fb1df0, which modified the permissions
on the tailscaled Unix socket and thus required "sudo tailscale" even
for "tailscale status".

Instead, open the permissions back up (on Linux only) but have the
server look at the peer creds and only permit read-only actions unless
you're root.

In the future we'll also have a group that can do mutable actions.

On OpenBSD and FreeBSD, the permissions on the socket remain locked
down to 0600 from d6e9fb1df0.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a45665426b cmd/tailscale/cli: tweak the status name column a bit
* make peers without DNS names show their hostnames as always one column, for cut/etc users
* remove trailing dot from shared peers' DNS names
3 years ago
Naman Sood 420c7a35e2
wgengine/netstack: use tailscale IPs instead of a hardcoded one (#1131)
Signed-off-by: Naman Sood <mail@nsood.in>
3 years ago
Brad Fitzpatrick 3ac952d4e9 go.sum: update 3 years ago
Brad Fitzpatrick a4b39022e0 wgengine/tsdns: fix MagicDNS lookups of shared nodes
Fixes tailscale/corp#1184
3 years ago