Commit Graph

7608 Commits (8d1249550a924d028de0844c0d101f29308e69b8)
 

Author SHA1 Message Date
Nick Khyl f62e678df8 net/dns/resolver, control/controlknobs, tailcfg: use UserDial instead of SystemDial to dial DNS servers
Now that tsdial.Dialer.UserDial has been updated to honor the configured routes
and dial external network addresses without going through Tailscale, while also being
able to dial a node/subnet router on the tailnet, we can start using UserDial to forward
DNS requests. This is primarily needed for DNS over TCP when forwarding requests
to internal DNS servers, but we also update getKnownDoHClientForProvider to use it.

Updates tailscale/corp#18725

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Andrew Lytvynov c28f5767bf
various: implement stateful firewalling on Linux (#12025)
Updates https://github.com/tailscale/corp/issues/19623


Change-Id: I7980e1fb736e234e66fa000d488066466c96ec85

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Co-authored-by: Andrew Dunham <andrew@du.nham.ca>
6 months ago
Maisem Ali 5ef178fdca net/tstun: refactor peerConfig to allow storing more details
This refactors the peerConfig struct to allow storing more
details about a peer and not just the masq addresses. To be
used in a follow up change.

As a side effect, this also makes the DNAT logic on the inbound
packet stricter. Previously it would only match against the packets
dst IP, not it also takes the src IP into consideration. The beahvior
is at parity with the SNAT case.

Updates tailscale/corp#19623

Co-authored-by: Andrew Dunham <andrew@du.nham.ca>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Change-Id: I5f40802bebbf0f055436eb8824e4511d0052772d
6 months ago
Brad Fitzpatrick f3d2fd22ef cmd/tailscale/cli: don't start WatchIPNBus until after up's initial Start
The CLI "up" command is a historical mess, both on the CLI side and
the LocalBackend side. We're getting closer to cleaning it up, but in
the meantime it was again implicated in flaky tests.

In this case, the background goroutine running WatchIPNBus was very
occasionally running enough to get to its StartLoginInteractive call
before the original goroutine did its Start call. That meant
integration tests were very rarely but sometimes logging in with the
default control plane URL out on the internet
(controlplane.tailscale.com) instead of the localhost control server
for tests.

This also might've affected new Headscale etc users on initial "up".

Fixes #11960
Fixes #11962

Change-Id: I36f8817b69267a99271b5ee78cb7dbf0fcc0bd34
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick aadb8d9d21 ipn/ipnlocal: don't send an empty BrowseToURL w/ WatchIPNBus NotifyInitialState
I noticed this while working on the following fix to #11962.

Updates #11962

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I4c5894d8899d1ae8c42f54ecfd4d05a4a7ac598c
6 months ago
Brad Fitzpatrick e26f76a1c4 tstest/integration: add more debugging, logs to catch flaky test
Updates #11962

Change-Id: I1ab0db69bdf8d1d535aa2cef434c586311f0fe18
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Nick Khyl caa3d7594f ipn/ipnlocal, net/tsdial: plumb routes into tsdial and use them in UserDial
We'd like to use tsdial.Dialer.UserDial instead of SystemDial for DNS over TCP.
This is primarily necessary to properly dial internal DNS servers accessible
over Tailscale and subnet routes. However, to avoid issues when switching
between Wi-Fi and cellular, we need to ensure that we don't retain connections
to any external addresses on the old interface. Therefore, we need to determine
which dialer to use internally based on the configured routes.

This plumbs routes and localRoutes from router.Config to tsdial.Dialer,
and updates UserDial to use either the peer dialer or the system dialer,
depending on the network address and the configured routes.

Updates tailscale/corp#18725
Fixes #4529

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
Brad Fitzpatrick ce8969d82b net/portmapper: add envknob to disable portmapper in localhost integration tests
Updates #11962

Change-Id: I8212cd814985b455d96986de0d4c45f119516cb3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 7e0dd61e61 ipn/ipnlocal, tstest/integration: add panic to catch flaky test in the act
Updates #11962

Change-Id: Ifa24b82f9c76639bfd83278a7c2fe9cf42897bbb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
License Updater 258b5042fe licenses: update license notices
Signed-off-by: License Updater <noreply+license-updater@tailscale.com>
6 months ago
Brad Fitzpatrick c3c18027c6 all: make more tests pass/skip in airplane mode
Updates tailscale/corp#19786

Change-Id: Iedc6730fe91c627b556bff5325bdbaf7bf79d8e6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Claire Wang 41f2195899
util/syspolicy: add auto exit node related keys (#11996)
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
Brad Fitzpatrick 1a963342c7 util/set: add Of variant of SetOf that takes variadic parameter
set.Of(1, 2, 3) is prettier than set.SetOf([]int{1, 2, 3}).

I was going to change the signature of SetOf but then I noticed its
name has stutter anyway, so I kept it for compatibility. People can
prefer to use set.Of for new code or slowly migrate.

Also add a lazy Make method, which I often find myself wanting,
without having to resort to uglier mak.Set(&set, k, struct{}{}).

Updates #cleanup

Change-Id: Ic6f3870115334efcbd65e79c437de2ad3edb7625
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Will Norris 80decd83c1 tsweb: remove redundant bumpStartIfNeeded func
Updates #12001

Signed-off-by: Will Norris <will@tailscale.com>
6 months ago
Maisem Ali ed843e643f types/views: add AppendStrings util func
Updates tailscale/corp#19623

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Maisem Ali fd6ba43b97 types/views: remove duplicate SliceContainsFunc
We already have `(Slice[T]).ContainsFunc`.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Will Norris 46980c9664 tsweb: ensure in-flight requests are always marked as finished
The inflight request tracker only starts recording a new bucket after
the first non-error request. Unfortunately, it's written in such a way
that ONLY successful requests are ever marked as being finished. Once a
bucket has had at least one successful request and begun to be tracked,
all subsequent error cases are never marked finished and always appear
as in-flight.

This change ensures that if a request is recorded has having been
started, we also mark it as finished at the end.

Updates tailscale/corp#19767

Signed-off-by: Will Norris <will@tailscale.com>
6 months ago
Percy Wegmann 817badf9ca ipn/ipnlocal: reuse transport across Taildrive remotes
This prevents us from opening a new connection on each HTTP
request.

Updates #11967

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 2cf764e998 drive: actually cache results on statcache
Updates #11967

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Irbe Krumina 406293682c
cmd/k8s-operator: cleanup runReconciler signature (#11993)
Updates#cleanup

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Claire Wang 35872e86d2
ipnlocal, magicsock: store last suggested exit node id in local backend (#11959)
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
Brad Fitzpatrick b62cfc430a tstest/integration/testcontrol: fix data race
Noticed in earlier GitHub actions failure.

Fixes #11994

Change-Id: Iba8d753caaa3dacbe2da9171d96c5f99b12e62d7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Andrew Dunham e9505e5432 ipn/ipnlocal: plumb health.Tracker into profileManager constructor
Setting the field after-the-fact wasn't working because we could migrate
prefs on creation, which would set health status for auto updates.

Updates #11986

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I41d79ebd61d64829a3a9e70586ce56f62d24ccfd
6 months ago
Brad Fitzpatrick e42c4396cf net/netcheck: don't spam on ICMP socket permission denied errors
While debugging a failing test in airplane mode on macOS, I noticed
netcheck logspam about ICMP socket creation permission denied errors.

Apparently macOS just can't do those, or at least not in airplane
mode. Not worth spamming about.

Updates #cleanup

Change-Id: I302620cfd3c8eabb25202d7eef040c01bd8a843c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 15fc6cd966 derp/derphttp: fix netcheck HTTPS probes
The netcheck client, when no UDP is available, probes distance using
HTTPS.

Several problems:

* It probes using /derp/latency-check.
* But cmd/derper serves the handler at /derp/probe
* Despite the difference, it work by accident until c8f4dfc8c0
  which made netcheck's probe require a 2xx status code.
* in tests, we only use derphttp.Handler, so the cmd/derper-installed
  mux routes aren't preesnt, so there's no probe. That breaks
  tests in airplane mode. netcheck.Client then reports "unexpected
  HTTP status 426" (Upgrade Required)

This makes derp handle both /derp/probe and /derp/latency-check
equivalently, and in both cmd/derper and derphttp.Handler standalone
modes.

I notice this when wgengine/magicsock TestActiveDiscovery was failing
in airplane mode (no wifi). It still doesn't pass, but it gets
further.

Fixes #11989

Change-Id: I45213d4bd137e0f29aac8bd4a9ac92091065113f
6 months ago
Brad Fitzpatrick 1fe0983f2d cmd/derper,tstest/nettest: skip network-needing test in airplane mode
Not buying wifi on a short flight is a good way to find tests
that require network. Whoops.

Updates #cleanup

Change-Id: Ibe678e9c755d27269ad7206413ffe9971f07d298
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 46f3feae96 ssh/tailssh: plumb health.Tracker in test
In prep for it being required in more places.

Updates #11874

Change-Id: Ib743205fc2a6c6ff3d2c4ed3a2b28cac79156539
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 4fa6cbec27 ssh/tailssh: use ptr.To in test
Updates #cleanup

Change-Id: Ic98ba1b63c8205084b30f59f0ca343788edea5b0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick ee3bd4dbda derp/derphttp, net/netcheck: plumb netmon.Monitor to derp netcheck client
Fixes #11981

Change-Id: I0e15a09f93aefb3cfddbc12d463c1c08b83e09fd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Percy Wegmann a03cb866b4 drive: use secret token to authenticate access to file server on localhost
This prevents Mark-of-the-Web bypass attacks in case someone visits the
localhost WebDAV server directly.

Fixes tailscale/corp#19592

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 745fb31bd4 drive: use secret token to authenticate access to file server on localhost
This prevents Mark-of-the-Web bypass attacks in case someone visits the
localhost WebDAV server directly.

Fixes tailscale/corp#19592

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 07e783c7be drive: use secret token to authenticate access to file server on localhost
This prevents Mark-of-the-Web bypass attacks in case someone visits the
localhost WebDAV server directly.

Fixes tailscale/corp#19592

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 3349e86c0a drive: use secret token to authenticate access to file server on localhost
This prevents Mark-of-the-Web bypass attacks in case someone visits the
localhost WebDAV server directly.

Fixes tailscale/corp#19592

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 0c11fd978b drive: use secret token to authenticate access to file server on localhost
This prevents Mark-of-the-Web bypass attacks in case someone visits the
localhost WebDAV server directly.

Fixes tailscale/corp#19592

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Percy Wegmann 9d22ec0ba2 drive: use secret token to authenticate access to file server on localhost
This prevents Mark-of-the-Web bypass attacks in case someone visits the
localhost WebDAV server directly.

Fixes tailscale/corp#19592

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Irbe Krumina cd633a7252
cmd/k8s-operator/deploy,k8s-operator: document that metrics are unstable (#11979)
Updates#11292

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Andrew Dunham f97d0ac994 net/dns/resolver: add better error wrapping
To aid in debugging exactly what's going wrong, instead of the
not-particularly-useful "dns udp query: context deadline exceeded" error
that we currently get.

Updates #3786
Updates #10768
Updates #11620
(etc.)

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I76334bf0681a8a2c72c90700f636c4174931432c
6 months ago
Claire Wang e0287a4b33
wgengine: add exit destination logging enable for wgengine logger (#11952)
Updates tailscale/corp#18625
Co-authored-by: Kevin Liang <kevinliang@tailscale.com>
Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
Irbe Krumina 19b31ac9a6
cmd/{k8s-operator,k8s-nameserver},k8s-operator: update nameserver config with records for ingress/egress proxies (#11019)
cmd/k8s-operator: optionally update dnsrecords Configmap with DNS records for proxies.

This commit adds functionality to automatically populate
DNS records for the in-cluster ts.net nameserver
to allow cluster workloads to resolve MagicDNS names
associated with operator's proxies.

The records are created as follows:
* For tailscale Ingress proxies there will be
a record mapping the MagicDNS name of the Ingress
device and each proxy Pod's IP address.
* For cluster egress proxies, configured via
tailscale.com/tailnet-fqdn annotation, there will be
a record for each proxy Pod, mapping
the MagicDNS name of the exposed
tailnet workload to the proxy Pod's IP.

No records will be created for any other proxy types.
Records will only be created if users have configured
the operator to deploy an in-cluster ts.net nameserver
by applying tailscale.com/v1alpha1.DNSConfig.

It is user's responsibility to add the ts.net nameserver
as a stub nameserver for ts.net DNS names.
https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/#configuration-of-stub-domain-and-upstream-nameserver-using-coredns
https://cloud.google.com/kubernetes-engine/docs/how-to/kube-dns#upstream_nameservers

See also https://github.com/tailscale/tailscale/pull/11017

Updates tailscale/tailscale#10499

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Maisem Ali a49ed2e145 derp,ipn/ipnlocal: stop calling rand.Seed
It's deprecated and using it gets us the old slow behavior
according to https://go.dev/blog/randv2.

> Having eliminated repeatability of the global output stream, Go 1.20
> was also able to make the global generator scale better in programs
> that don’t call rand.Seed, replacing the Go 1 generator with a very
> cheap per-thread wyrand generator already used inside the Go
> runtime. This removed the global mutex and made the top-level
> functions scale much better. Programs that do call rand.Seed fall
> back to the mutex-protected Go 1 generator.

Updates #7123

Change-Id: Ia5452e66bd16b5457d4b1c290a59294545e13291
Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Brad Fitzpatrick 96712e10a7 health, ipn/ipnlocal: move more health warning code into health.Tracker
In prep for making health warnings rich objects with metadata rather
than a bunch of strings, start moving it all into the same place.

We'll still ultimately need the stringified form for the CLI and
LocalAPI for compatibility but we'll next convert all these warnings
into Warnables that have severity levels and such, and legacy
stringification will just be something each Warnable thing can do.

Updates #4136

Change-Id: I83e189435daae3664135ed53c98627c66e9e53da
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Andrew Dunham be663c84c1 net/tstun: rename natConfig to peerConfig
So that we can use this for additional, non-NAT configuration without it
being confusing.

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1658d59c9824217917a94ee76d2d08f0a682986f
6 months ago
Andrew Dunham 10497acc95 net/tstun: refactor natConfig to not be per-family
This was a holdover from the older, pre-BART days and is no longer
necessary.

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I71b892bab1898077767b9ff51cef33d59c08faf8
6 months ago
Andrew Lytvynov 13e1355546
scripts/installer.sh: remove unnecessary escaping in grep (#11950)
Updates #11263

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
6 months ago
Percy Wegmann 843afe7c53 ssh/tailssh: add integration test
Updates tailscale/corp#11854

Signed-off-by: Percy Wegmann <percy@tailscale.com>
6 months ago
Jonathan Nobels 45b9aa0d83
net/netmon: remove spammy log statements (#11953)
Updates tailscale/corp#18960

Tests in corp called us using the wrong logging calls.  Removed.
This is logged downstream anyway.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
6 months ago
Paul Scott 4c08410011 cmd/tailscale/cli: set localClient.UseSocketOnly during flag parsing
This configures localClient correctly during flag parsing, so that the --socket
option is effective when generating tab-completion results. For example, the
following would not connect to the system Tailscale for tab-completion results:

    tailscale --socket=/tmp/tailscaled.socket switch <TAB>

Updates #3793

Signed-off-by: Paul Scott <paul@tailscale.com>
6 months ago
Paul Scott ba34943133 cmd/tailscale/cli/ffcomplete: omit and clean completion results
Updates #3793

Signed-off-by: Paul Scott <paul@tailscale.com>
6 months ago
Jonathan Nobels fa1303d632
net/netmon: swap to swift-derived defaultRoute on macos (#11936)
Updates tailscale/corp#18960

iOS uses Apple's NetworkMonitor to track the default interface and
there's no reason we shouldn't also use this on macOS, for the same
reasons noted in the comments for why this change was made on iOS.

This eliminates the need to load and parse the routing table when
querying the defaultRouter() in almost all cases.

A slight modification here (on both platforms) to fallback to the default
BSD logic in the unhappy-path rather than making assumptions that
may not hold.  If netmon is eventually parsing AF_ROUTE and able
to give a consistently correct answer for the  default interface index,
we can fall back to that and eliminate the Swift dependency.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
6 months ago
Gabe Gorelick de85610be0
cmd/k8s-operator/deploy/chart: allow users to configure additional labels for the operator's Pod via Helm chart values.
cmd/k8s-operator/deploy/chart: allow users to configure additional labels for the operator's Pod via Helm chart values.

Fixes #11947

Signed-off-by: Gabe Gorelick <gabe@hightouch.io>
6 months ago