In this PR, we update LocalBackend to set WantRunning=true when applying policy settings
to the current profile's prefs, if the "always-on" mode is enabled.
We also implement a new (*LocalBackend).EditPrefsAs() method, which is like EditPrefs
but accepts an actor (e.g., a LocalAPI client's identity) that initiated the change.
If WantRunning is being set to false, the new EditPrefsAs method checks whether the actor
has ipnauth.Disconnect access to the profile and propagates an error if they do not.
Finally, we update (*ipnserver.actor).CheckProfileAccess to allow a disconnect
only if the "always-on" mode is not enabled by the AlwaysOn policy setting.
This is not a comprehensive solution to the "always-on" mode across platforms,
as instead of disconnecting a user could achieve the same effect by creating
a new empty profile, initiating a reauth, or by deleting the profile.
These are the things we should address in future PRs.
Updates #14823
Signed-off-by: Nick Khyl <nickk@tailscale.com>
The implementations define it to verify whether the actor has the requested access to a login profile.
Updates #14823
Signed-off-by: Nick Khyl <nickk@tailscale.com>
Conventionally, we use views (e.g., ipn.PrefsView, tailcfg.NodeView, etc.) when
dealing with structs that shouldn't be mutated. However, ipn.LoginProfile has been
an exception so far, with a mix of passing and returning LoginProfile by reference
(allowing accidental mutations) and by value (which is wasteful, given its
current size of 192 bytes).
In this PR, we generate an ipn.LoginProfileView and use it instead of passing/returning
LoginProfiles by mutable reference or copying them when passing/returning by value.
Now, LoginProfiles can only be mutated by (*profileManager).setProfilePrefs.
Updates #14823
Signed-off-by: Nick Khyl <nickk@tailscale.com>
SliceEqualAnyOrderFunc had an optimization missing from SliceEqualAnyOrder.
Now they share the same code and both have the optimization.
Updates #14593
Change-Id: I550726e0964fc4006e77bb44addc67be989c131c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
tailscaled's ipn package writes a collection of keys to state after
authenticating to control, but one at a time. If containerboot happens
to send a SIGTERM signal to tailscaled in the middle of writing those
keys, it may shut down with an inconsistent state Secret and never
recover. While we can't durably fix this with our current single-use
auth keys (no atomic operation to auth + write state), we can reduce
the window for this race condition by checking for partial state
before sending SIGTERM to tailscaled. Best effort only.
Updates #14080
Change-Id: I0532d51b6f0b7d391e538468bd6a0a80dbe1d9f7
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
Some probes might need to run for longer than their scheduling interval,
so this change relaxes the 1-at-a-time restriction, allowing us to
configure probe concurrency and timeout separately. The default values
remain the same (concurrency of 1; timeout of 80% of interval).
Updates tailscale/corp#25479
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
The HA Ingress functionality is not actually doing anything
valuable yet, so don't run the controller in 1.80 release yet.
Updates tailscale/tailscale#24795
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
This change builds on top of #14436 to ensure minimum downtime during egress ProxyGroup update rollouts:
- adds a readiness gate for ProxyGroup replicas that prevents kubelet from marking
the replica Pod as ready before a corresponding readiness condition has been added
to the Pod
- adds a reconciler that reconciles egress ProxyGroup Pods and, for each that is not ready,
if cluster traffic for relevant egress endpoints is routed via this Pod- if so add the
readiness condition to allow kubelet to mark the Pod as ready.
During the sequenced StatefulSet update rollouts kubelet does not restart
a Pod before the previous replica has been updated and marked as ready, so
ensuring that a replica is not marked as ready allows to avoid a temporary
post-update situation where all replicas have been restarted, but none of the
new ones are yet set up as an endpoint for the egress service, so cluster traffic is dropped.
Updates tailscale/tailscale#14326
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
For 9dd6af1f6d
Update client/web and safeweb to correctly signal to the csrf middleware
whether the request is being served over TLS. This determines whether
Origin and Referer header checks are strictly enforced. The gorilla
library previously did not enforce these checks due to a logic bug based
on erroneous use of the net/http.Request API. The patch to fix this also
inverts the library behavior to presume that every request is being
served over TLS, necessitating these changes.
Updates tailscale/corp#25340
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
Co-authored-by: Patrick O'Doherty <patrick@tailscale.com>
This reverts commit 46fd4e58a2.
We don't want to include this in 1.80 yet, but can add it back post 1.80.
Updates #8593
Signed-off-by: Percy Wegmann <percy@tailscale.com>
Fixes the configfile reload logic- if the tailscale capver can not
yet be determined because the device info is not yet written to the
state Secret, don't assume that the proxy is pre-110.
Updates tailscale/tailscale#13032
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
cmd/{containerboot,k8s-operator},kube: add preshutdown hook for egress PG proxies
This change is part of work towards minimizing downtime during update
rollouts of egress ProxyGroup replicas.
This change:
- updates the containerboot health check logic to return Pod IP in headers,
if set
- always runs the health check for egress PG proxies
- updates ClusterIP Services created for PG egress endpoints to include
the health check endpoint
- implements preshutdown endpoint in proxies. The preshutdown endpoint
logic waits till, for all currently configured egress services, the ClusterIP
Service health check endpoint is no longer returned by the shutting-down Pod
(by looking at the new Pod IP header).
- ensures that kubelet is configured to call the preshutdown endpoint
This reduces the possibility that, as replicas are terminated during an update,
a replica gets terminated to which cluster traffic is still being routed via
the ClusterIP Service because kube proxy has not yet updated routig rules.
This is not a perfect check as in practice, it only checks that the kube
proxy on the node on which the proxy runs has updated rules. However, overall
this might be good enough.
The preshutdown logic is disabled if users have configured a custom health check
port via TS_LOCAL_ADDR_PORT env var. This change throws a warnign if so and in
future setting of that env var for operator proxies might be disallowed (as users
shouldn't need to configure this for a Pod directly).
This is backwards compatible with earlier proxy versions.
Updates tailscale/tailscale#14326
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
This was flagged by @tkhattra on the merge commit; thanks!
Updates tailscale/corp#25479
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ia8045640f02bd4dcc0fe7433249fd72ac6b9cf52
The upstream crypto package now supports sending banners at any time during
authentication, so the Tailscale fork of crypto/ssh is no longer necessary.
github.com/tailscale/golang-x-crypto is still needed for some custom ACME
autocert functionality.
tempfork/gliderlabs is still necessary because of a few other customizations,
mostly related to TTY handling.
Updates #8593
Signed-off-by: Percy Wegmann <percy@tailscale.com>
It was a temporary migration over four years ago. It's no longer
relevant.
Updates #610
Change-Id: I1f00c9485fab13ede6f77603f7d4235222c2a481
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We've been maintaining temporary dev forks of golang.org/x/crypto/{acme,ssh}
in https://github.com/tailscale/golang-x-crypto instead of using
this repo's tempfork directory as we do with other packages. The reason we were
doing that was because x/crypto/ssh depended on x/crypto/ssh/internal/poly1305
and I hadn't noticed there are forwarding wrappers already available
in x/crypto/poly1305. It also depended internal/bcrypt_pbkdf but we don't use that
so it's easy to just delete that calling code in our tempfork/ssh.
Now that our SSH changes have been upstreamed, we can soon unfork from SSH.
That leaves ACME remaining.
This change copies our tailscale/golang-x-crypto/acme code to
tempfork/acme but adds a test that our vendored copied still matches
our tailscale/golang-x-crypto repo, where we can continue to do
development work and rebases with upstream. A comment on the new test
describes the expected workflow.
While we could continue to just import & use
tailscale/golang-x-crypto/acme, it seems a bit nicer to not have that
entire-fork-of-x-crypto visible at all in our transitive deps and the
questions that invites. Showing just a fork of an ACME client is much
less scary. It does add a step to the process of hacking on the ACME
client code, but we do that approximately never anyway, and the extra
step is very incremental compared to the existing tedious steps.
Updates #8593
Updates #10238
Change-Id: I8af4378c04c1f82e63d31bf4d16dba9f510f9199
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Previously we were depending on the GUI(s) to do it.
By doing it in tailscaled, GUIs can be simplified and be
guaranteed to render consistent results.
If warnable A depends on warnable B, if both A & B are unhealhy, only
B will be shown to the GUI as unhealthy. Once B clears up, only then
will A be presented as unhealthy.
Updates #14687
Change-Id: Id8566f2672d8d2d699740fa053d4e2a2c8009e83
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The c2n handling code was using the Go httptest package's
ResponseRecorder code but that's in a test package which brings in
Go's test certs, etc.
This forks the httptest recorder type into its own package that only
has the recorder and adds a test that we don't re-introduce a
dependency on httptest.
Updates #12614
Change-Id: I3546f49972981e21813ece9064cc2be0b74f4b16
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The hiding of internal packages has hidden things I wanted to see a
few times now. Stop hiding them. This makes depaware.txt output a bit
longer, but not too much. Plus we only really look at it with diffs &
greps anyway; it's not like anybody reads the whole thing.
Updates #12614
Change-Id: I868c89eeeddcaaab63e82371651003629bc9bda8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This protects against rearranging packages and not catching that a BadDeps
package got moved. That would then effectively remove a test.
Updates #12614
Change-Id: I257f1eeda9e3569c867b7628d5bfb252d3354ba6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The AsDebugJSON method (used only for a LocalAPI debug call) always
needed to be updated whenever a new controlknob was added. We had a
test for it, which was nice, but it was a tedious step we don't need
to do. Use reflect instead.
Updates #14788
Change-Id: If59cd776920f3ce7c748f86ed2eddd9323039a0b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We had the debug packet capture code + Lua dissector in the CLI + the
iOS app. Now we don't, with tests to lock it in.
As a bonus, tailscale.com/net/packet and tailscale.com/net/flowtrack
no longer appear in the CLI's binary either.
A new build tag ts_omit_capture disables the packet capture code and
was added to build_dist.sh's --extra-small mode.
Updates #12614
Change-Id: I79b0628c0d59911bd4d510c732284d97b0160f10
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Adds an envknob setting for changing the client's ACME directory URL.
This allows testing cert issuing against LE's staging environment, as
well as enabling local-only test environments, which is useful for
avoiding the production rate limits in test and development scenarios.
Fixes#14761
Change-Id: I191c840c0ca143a20e4fa54ea3b2f9b7cbfc889f
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
Some natc instances have been observed with excessive memory growth,
dominant in gvisor buffers. It is likely that the connection buffers are
sticking around for too long due to the default long segment time, and
uptuned buffer size applied by default in wgengine/netstack. Apply
configurations in natc specifically which are a better match for the
natc use case, most notably a 5s maximum segment lifetime.
Updates tailscale/corp#25169
Signed-off-by: James Tucker <james@tailscale.com>
Manually update the `web-client-prebuilt` package as the GitHub action
is failing for some reason.
Updates https://github.com/tailscale/tailscale/issues/14568
Signed-off-by: Mario Minardi <mario@tailscale.com>
Removing the advanced options collapsible from the web client login for
now ahead of our next client release.
Updates https://github.com/tailscale/tailscale/issues/14568
Signed-off-by: Mario Minardi <mario@tailscale.com>
The CN field is technically deprecated; set the requested name in a DNS SAN
extension in addition to maximise compatibility with RFC 8555.
Fixes#14762
Change-Id: If5d27f1e7abc519ec86489bf034ac98b2e613043
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
The timeout still defaults to 2 seconds, but can now be changed via command-line flag.
Updates tailscale/corp#26045
Signed-off-by: Percy Wegmann <percy@tailscale.com>
This interface is used both by the DERP client as well as the server.
Defining the interface in derp.go makes it clear that it is shared.
Updates tailscale/corp#26045
Signed-off-by: Percy Wegmann <percy@tailscale.com>
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