Commit Graph

4896 Commits (d4f6efa1dfb7974c5ee9a99bc14aa4735a8220eb)
 

Author SHA1 Message Date
Andrew Dunham e966f024b0 net/dns: print systemd-resolved ResolvConfMode
The ResolvConfMode property is documented to return how systemd-resolved
is currently managing /etc/resolv.conf. Include that information in the
debug line, when available, to assist in debugging DNS issues.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1ae3a257df1d318d0193a8c7f135c458ec45093e
2 years ago
Andrew Dunham 223126fe5b cmd/derper, net/netcheck: add challenge/response to generate_204 endpoint
The Lufthansa in-flight wifi generates a synthetic 204 response to the
DERP server's /generate_204 endpoint. This PR adds a basic
challenge/response to the endpoint; something sufficiently complicated
that it's unlikely to be implemented by a captive portal. We can then
check for the expected response to verify whether we're being MITM'd.

Follow-up to #5601

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I94a68c9a16a7be7290200eea6a549b64f02ff48f
2 years ago
Anton Tolchanov d499afac78 net/interfaces: improve default route detection
Instead of treating any interface with a non-ifscope route as a
potential default gateway, now verify that a given route is
actually a default route (0.0.0.0/0 or ::/0).

Fixes #5879

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
Anton Tolchanov 9c2ad7086c net/interfaces: deduplicate route table parsing on Darwin and FreeBSD
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
Mihai Parparita 9d04ffc782 net/wsconn: add back custom wrapper for turning a websocket.Conn into a net.Conn
We removed it in #4806 in favor of the built-in functionality from the
nhooyr.io/websocket package. However, it has an issue with deadlines
that has not been fixed yet (see nhooyr/websocket#350). Temporarily
go back to using a custom wrapper (using the fix from our fork) so that
derpers will stop closing connections too aggressively.

Updates #5921

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Maya Kaczorowski d00b095f14
.github: update issue templates (#5978)
Signed-off-by: Maya Kaczorowski <15946341+mayakacz@users.noreply.github.com>

Signed-off-by: Maya Kaczorowski <15946341+mayakacz@users.noreply.github.com>
2 years ago
Brad Fitzpatrick 9475801ebe ipn/ipnlocal: fix E.G.G. port number accounting
Change-Id: Id35461fdde79448372271ba54f6e6af586f2304d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Mihai Parparita 37da617380 .github/workflows: use fast compression for NPM package CI check
Starting with #5946 we're compressing main.wasm when building the
package, but that should not show down the CI check.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Mihai Parparita 7741e9feb0 cmd/tsconnect: add progress and connection callbacks
Allows UI to display slightly more fine-grained progress when the SSH
connection is being established.

Updates tailscale/corp#7186

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Brad Fitzpatrick 246274b8e9 control/controlhttp: allow setting, getting Upgrade headers in Noise upgrade
Not currently used, but will allow us to usually remove a round-trip for
a future feature.

Updates #5972

Change-Id: I2770ea28e3e6ec9626d1cbb505a38ba51df7fba2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
License Updater 03ecf335f7 licenses: update android licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Joe Tsai 14100c0985
wgengine/magicsock: restore allocation-free endpoint.DstToString (#5971)
The wireguard-go code unfortunately calls this unconditionally
even when verbose logging is disabled.

Partial revert of #5911.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Brad Fitzpatrick 45b7e8c23c cmd/tailscale: make tailscale cert --serve-demo accept optional listen argument
Change-Id: I48f2f4f74c9996b9ed4bee02c61f125d42154a34
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 630bcb5b67 tsnet,client/tailscale: add APIClient which runs API over Noise.
Updates tailscale/corp#4383

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Tom DNetto e8a11f6181 tka: make rotation signatures use nested keyID
Duplicating this at each layer doesnt make any sense, and is another
invariant where things could go wrong.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Xe Iaso 86c5bddce2
tsnet/examples/tshello: update example for LocalClient method (#5966)
Before this would silently fail if this program was running on a machine
that was not already running Tailscale. This patch changes the WhoIs
call to use the tsnet.Server LocalClient instead of the global tailscale
LocalClient.

Signed-off-by: Xe <xe@tailscale.com>

Signed-off-by: Xe <xe@tailscale.com>
2 years ago
Joe Tsai 9116e92718
cmd/netlogfmt: new package to pretty print network traffic logs (#5930)
This package parses a JSON stream of netlog.Message from os.Stdin
and pretty prints the contents as a stream of tables.

It supports reverse lookup of tailscale IP addresses if given
an API key and the tailnet that these traffic logs belong to.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai 9ee3df02ee
wgengine/magicsock: remove endpoint.wgEndpoint (#5911)
This field seems seldom used and the documentation is wrong.
It is simpler to just derive its original value dynamically
when endpoint.DstToString is called.

This method is potentially used by wireguard-go,
but not in any code path is performance sensitive.
All calls to it use it in conjunction with fmt.Printf,
which is going to be slow anyways since it uses Go reflection.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
dependabot[bot] 3a33895f1b
.github: Bump peter-evans/create-pull-request from 4.1.1 to 4.1.4 (#5965)
* .github: Bump peter-evans/create-pull-request from 4.1.1 to 4.1.4
* Update semantic version comment.

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 4.1.1 to 4.1.4.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](18f90432be...ad43dccb4d)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: M. J. Fromberger <fromberger@tailscale.com>
2 years ago
Andrew Dunham a4e707bcf0 control/controlhttp: try to avoid flakes in TestDialPlan
Updates tailscale/corp#7446

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ifcf3b5176f065c2e67cbb8943f6356dea720a9c5
2 years ago
Denton Gentry b55761246b prober: add utilities to generate alerts and warnings.
sendAlert will trigger the Incident Response system.
sendWarning will post to Slack.

Co-authored-by: M. J. Fromberger <fromberger@tailscale.com>
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
Maisem Ali af966391c7 kube: handle 201 as a valid status code.
Fixes tailscale/corp#7478

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Denton Gentry 19dfdeb1bb cmd/tailscale: correct --cpu-profile help text
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
Charlotte Brandhorst-Satzkorn 4eed2883db
words: space, the final frontier (#5952)
Captains log. Stardate 100386.37.

Work is proceeding on the Words list as Tailscalars are forced to scavenge for more taily and scaley things.

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
2 years ago
Andrew Dunham c32f9f5865
cmd/tailscale, ipn: enable debug logs when --report flag is passed to bugreport (#5830)
Change-Id: Id22e9f4a2dcf35cecb9cd19dd844389e38c922ec
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Andrew Dunham 64ea60aaa3
derp: add TCP RTT metric on Linux (#5949)
Periodically poll the TCP RTT metric from all open TCP connections and
update a (bucketed) histogram metric.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I6214902196b05bf7829c9d0ea501ce0e13d984cf
2 years ago
Brad Fitzpatrick a04f1ff9e6 logtail: default to 2s log flush delay on all platforms
Per chat. This is close enough to realtime but massively reduces
number of HTTP requests. (which you can verify with
TS_DEBUG_LOGTAIL_WAKES and watching tailscaled run at start)

By contrast, this is set to 2 minutes on mobile.

Change-Id: Id737c7924d452de5c446df3961f5e94a43a33f1f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Mihai Parparita 63ad49890f cmd/tsconnect: pre-compress main.wasm when building the NPM package
This way we can do that once (out of band, in the GitHub action),
instead of increasing the time of each deploy that uses the package.

.wasm is removed from the list of automatically pre-compressed
extensions, an OSS bump and small change on the corp side is needed to
make use of this change.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
License Updater 899b4cae10 licenses: update win/apple licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Tom DNetto a515fc517b ipn/ipnlocal: make tkaSyncIfNeeded exclusive with a mutex
Running corp/ipn#TestNetworkLockE2E has a 1/300 chance of failing, and
deskchecking suggests thats whats happening are two netmaps are racing each
other to be processed through tkaSyncIfNeededLocked. This happens in the
first place because we release b.mu during network RPCs.

To fix this, we make the tka sync logic an exclusive section, so two
netmaps will need to wait for tka sync to complete serially (which is what
we would want anyway, as the second run through probably wont need to
sync).

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Tom DNetto 227777154a control/controlclient,ipn/ipnlocal,tailcfg: rotate node-key signature on register
CAPVER 47

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Anton Tolchanov 26af329fde prober: expand certificate verification logic in the TLS prober
TLS prober now checks validity period for all server certificates
and verifies OCSP revocation status for the leaf cert.

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
License Updater 39d03b6b63 licenses: update win/apple licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Maisem Ali 3555a49518 net/dns: always attempt to read the OS config on macOS/iOS
Also reconfigure DNS on iOS/macOS on link changes.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
James Tucker 539c073cf0 wgengine/magicsock: set UDP socket buffer sizes to 7MB
- At high data rates more buffer space is required in order to avoid
  packet loss during any cause of delay.
- On slower machines more buffer space is required in order to avoid
  packet loss while decryption & tun writing is underway.
- On higher latency network paths more buffer space is required in order
  to overcome BDP.
- On Linux set with SO_*BUFFORCE to bypass net.core.{r,w}mem_max.
- 7MB is the current default maximum on macOS 12.6
- Windows test is omitted, as Windows does not support getsockopt for
  these options.

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Brad Fitzpatrick a315336287 logtail: change batched upload mechanism to not use CPU when idle
The mobile implementation had a 2 minute ticker going all the time
to do a channel send. Instead, schedule it as needed based on activity.

Then we can be actually idle for long periods of time.

Updates #3363

Change-Id: I0dba4150ea7b94f74382fbd10db54a82f7ef6c29
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Will Norris d05dd41bc1 api.md: document using '-' value as default tailnet
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Brad Fitzpatrick 9a264dac01 net/netcheck: fix crash in checkCaptivePortal
If netcheck happens before there's a derpmap.

This seems to only affect Headscale because it doesn't send a derpmap
as early?

Change-Id: I51e0dfca8e40623e04702bc9cc471770ca20d2c2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Mihai Parparita b2855cfd86 derp/derphttp: fix nil pointer dereference when closing a netcheck client
NewNetcheckClient only initializes a subset of fields of derphttp.Client,
and the Close() call added by #5707 was result in a nil pointer dereference.
Make Close() safe to call when using NewNetcheckClient() too.

Fixes #5919

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
James Tucker 4ec6d41682 wgengine/router: fix MTU configuration on Windows
Always set the MTU to the Tailscale default MTU. In practice we are
missing applying an MTU for IPv6 on Windows prior to this patch.

This is the simplest patch to fix the problem, the code in here needs
some more refactoring.

Fixes #5914

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Joe Tsai a1a43ed266
wgengine/netlog: add support for magicsock statistics (#5913)
This sets up Logger to handle statistics at the magicsock layer,
where we can correlate traffic between a particular tailscale IP address
and any number of physical endpoints used to contact the node
that hosts that tailscale address.

We also export Message and TupleCounts to better document the JSON format
that is being sent to the logging infrastructure.

This commit does NOT yet enable the actual logging of magicsock statistics.
That will be a future commit.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
License Updater db863bf00f licenses: update android licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Joe Tsai f9120eee57
wgengine: start network logger in Userspace.Reconfig (#5908)
If the wgcfg.Config is specified with network logging arguments,
then Userspace.Reconfig starts up an asynchronous network logger,
which is shutdown either upon Userspace.Close or when Userspace.Reconfig
is called again without network logging or route arguments.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai 49bae7fd5c
wgengine: fix typo in Engine.PeerForIP (#5912)
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Sonia Appasamy 5363a90272 types/view: add ContainsNonExitSubnetRoutes func
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
2 years ago
Mihai Parparita b49eb7d55c cmd/tsconnect: move NPM package to being under the @tailscale org
Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Joe Tsai 1b4e4cc1e8
wgengine/netlog: new package for traffic flow logging (#5864)
The Logger type managers a logtail.Logger for extracting
statistics from a tstun.Wrapper.
So long as Shutdown is called, it ensures that logtail
and statistic gathering resources are properly cleared up.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Brad Fitzpatrick 79755d3ce5 tstest/natlab: add Firewall.Reset method to drop firewall state
For future use in magicsock tests.

Updates #540

Change-Id: I2f07d1a2924f20b36e357c4533ff0a1a974d5061
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Denton Gentry 1b9ed9f365 VERSION.txt: this is 1.33.
We did not get this VERSION.txt file checked in at the correct time,
the prior 10 commits in `main` between the v1.32.0 tag point and
this commit were not part of release 1.32. We did no unstable builds
during this time, so the error should have no impact.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
License Updater e7519adc18 licenses: update tailscale{,d} licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago