Fix "file not found" errors when WebDAV clients access files/dirs inside
directories with spaces.
The issue occurred because StatCache was mixing URL-escaped and
unescaped paths, causing cache key mismatches.
Specifically, StatCache.set() parsed WebDAV responses containing
URL-escaped paths (ex. "Dir%20Space/file1.txt") and stored them
alongside unescaped cache keys (ex. "Dir Space/file1.txt").
This mismatch prevented StatCache.get() from correctly determining whether
a child file existed.
See https://github.com/tailscale/tailscale/issues/13632#issuecomment-3243522449
for the full explanation of the issue.
The decision to keep all paths references unescaped inside the StatCache
is consistent with net/http.Request.URL.Path and rewrite.go (sole consumer)
Update unit test to detect this directory space mishandling.
Fixes tailscale#13632
Signed-off-by: Craig Hesling <craig@hesling.com>
There's a TODO to delete all of handler.go, but part of it's
still used in another repo.
But this deletes some.
Updates #17022
Change-Id: Ic5a8a5a694ca258440307436731cd92b45ee2d21
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Before:
$ tailscale ip -4
1.2.3.4
$ tailscale set --exit-node=1.2.3.4
no node found in netmap with IP 1.2.3.4
After:
$ tailscale set --exit-node=1.2.3.4
cannot use 1.2.3.4 as an exit node as it is a local IP address to this machine; did you mean --advertise-exit-node?
The new error message already existed in the code, but would only be
triggered if the backend wasn't running -- which means, in practice,
it would almost never be triggered.
The old error message is technically true, but could be confusing if you
don't know the distinction between "netmap" and "tailnet" -- it could
sound like the exit node isn't part of your tailnet. A node is never in
its own netmap, but it is part of your tailnet.
This error confused me when I was doing some local dev work, and it's
confused customers before (e.g. #7513). Using the more specific error
message should reduce confusion.
Updates #7513
Updates https://github.com/tailscale/corp/issues/23596
Signed-off-by: Alex Chan <alexc@tailscale.com>
Now that we have policytest and the policyclient.Client interface, we
can de-global-ify many of the tests, letting them run concurrently
with each other, and just removing global variable complexity.
This does ~half of the LocalBackend ones.
Updates #16998
Change-Id: Iece754e1ef4e49744ccd967fa83629d0dca6f66a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This is step 4 of making syspolicy a build-time feature.
This adds a policyclient.Get() accessor to return the correct
implementation to use: either the real one, or the no-op one. (A third
type, a static one for testing, also exists, so in general a
policyclient.Client should be plumbed around and not always fetched
via policyclient.Get whenever possible, especially if tests need to use
alternate syspolicy)
Updates #16998
Updates #12614
Change-Id: Iaf19670744a596d5918acfa744f5db4564272978
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Step 4 of N. See earlier commits in the series (via the issue) for the
plan.
This adds the missing methods to policyclient.Client and then uses it
everywhere in ipn/ipnlocal and locks it in with a new dep test.
Still plenty of users of the global syspolicy elsewhere in the tree,
but this is a lot of them.
Updates #16998
Updates #12614
Change-Id: I25b136539ae1eedbcba80124de842970db0ca314
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Step 3 in the series. See earlier cc532efc20 and d05e6dc09e.
This step moves some types into a new leaf "ptype" package out of the
big "settings" package. The policyclient.Client will later get new
methods to return those things (as well as Duration and Uint64, which
weren't done at the time of the earlier prototype).
Updates #16998
Updates #12614
Change-Id: I4d72d8079de3b5351ed602eaa72863372bd474a2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Previously, when attempting a risky action, the CLI printed a 5 second countdown saying
"Continuing in 5 seconds...". When the countdown finished, the CLI aborted rather than
continuing.
To avoid confusion, but also avoid accidentally continuing if someone (or an automated
process) fails to manually abort within the countdown, we now explicitly prompt for a
y/n response on whether or not to continue.
Updates #15445
Co-authored-by: Kot C <kot@kot.pink>
Signed-off-by: Percy Wegmann <percy@tailscale.com>
This commit adds a `replicas` field to the `Connector` custom resource that
allows users to specify the number of desired replicas deployed for their
connectors.
This allows users to deploy exit nodes, subnet routers and app connectors
in a highly available fashion.
Fixes#14020
Signed-off-by: David Bond <davidsbond93@gmail.com>
This is step 2 of ~4, breaking up #14720 into reviewable chunks, with
the aim to make syspolicy be a build-time configurable feature.
Step 1 was #16984.
In this second step, the util/syspolicy/policyclient package is added
with the policyclient.Client interface. This is the interface that's
always present (regardless of build tags), and is what code around the
tree uses to ask syspolicy/MDM questions.
There are two implementations of policyclient.Client for now:
1) NoPolicyClient, which only returns default values.
2) the unexported, temporary 'globalSyspolicy', which is implemented
in terms of the global functions we wish to later eliminate.
This then starts to plumb around the policyclient.Client to most callers.
Future changes will plumb it more. When the last of the global func
callers are gone, then we can unexport the global functions and make a
proper policyclient.Client type and constructor in the syspolicy
package, removing the globalSyspolicy impl out of tsd.
The final change will sprinkle build tags in a few more places and
lock it in with dependency tests to make sure the dependencies don't
later creep back in.
Updates #16998
Updates #12614
Change-Id: Ib2c93d15c15c1f2b981464099177cd492d50391c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This is step 1 of ~3, breaking up #14720 into reviewable chunks, with
the aim to make syspolicy be a build-time configurable feature.
In this first (very noisy) step, all the syspolicy string key
constants move to a new constant-only (code-free) package. This will
make future steps more reviewable, without this movement noise.
There are no code or behavior changes here.
The future steps of this series can be seen in #14720: removing global
funcs from syspolicy resolution and using an interface that's plumbed
around instead. Then adding build tags.
Updates #12614
Change-Id: If73bf2c28b9c9b1a408fe868b0b6a25b03eeabd1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Apparently, #16989 introduced a bug in request-dataplane-review.yml:
> you may only define one of `paths` and `paths-ignore` for a single event
Related #16372
Updates #cleanup
Signed-off-by: Simon Law <sfllaw@tailscale.com>
@tailscale/dataplane almost never needs to review depaware.txt, when
it is the only change to the DERP implementation.
Related #16372
Updates #cleanup
Signed-off-by: Simon Law <sfllaw@tailscale.com>
If the DERP queue is full, drop the oldest item first, rather than the
youngest, on the assumption that older data is more likely to be
unanswerable.
Updates tailscale/corp#31762
Signed-off-by: James Tucker <james@tailscale.com>
Add a ternary flag that unless set explicitly to false keeps the
insecure behavior of TSIDP.
If the flag is false, add functionality on startup to migrate
oidc-funnel-clients.json to oauth-clients.json if it doesn’t exist.
If the flag is false, modify endpoints to behave similarly regardless
of funnel, tailnet, or localhost. They will all verify client ID & secret
when appropriate per RFC 6749. The authorize endpoint will no longer change
based on funnel status or nodeID.
Add extra tests verifying TSIDP endpoints behave as expected
with the new flag.
Safely create the redirect URL from what's passed into the
authorize endpoint.
Fixes #16880
Signed-off-by: Remy Guercio <remy@tailscale.com>
Doesn't look to affect us, but pacifies security scanners.
See 88ddf1d0d9
It's for decoding. We only use this package for encoding (via
github.com/google/rpmpack / github.com/goreleaser/nfpm/v2).
Updates #8043
Change-Id: I87631aa5048f9514bb83baf1424f6abb34329c46
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Our own WaitGroup wrapper type was a prototype implementation
for the Go method on the standard sync.WaitGroup type.
Now that there is first-class support for Go,
we should migrate over to using it and delete syncs.WaitGroup.
Updates #cleanup
Updates tailscale/tailscale#16330
Change-Id: Ib52b10f9847341ce29b4ca0da927dc9321691235
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
DERP writes go via TCP and the host OS will have plenty of buffer space.
We've observed in the wild with a backed up TCP socket kernel side
buffers of >2.4MB. The DERP internal queue being larger causes an
increase in the probability that the contents of the backbuffer are
"dead letters" - packets that were assumed to be lost.
A first step to improvement is to size this queue only large enough to
avoid some of the initial connect stall problem, but not large enough
that it is contributing in a substantial way to buffer bloat /
dead-letter retention.
Updates tailscale/corp#31762
Signed-off-by: James Tucker <james@tailscale.com>
I need a ringbuffer in the more traditional sense, one that has a notion
of item removal as well as tail loss on overrun. This implementation is
really a clearable log window, and is used as such where it is used.
Updates #cleanup
Updates tailscale/corp#31762
Signed-off-by: James Tucker <james@tailscale.com>
Bump Go 1.25 release to include a go/types patch and resolve govulncheck
CI exceptions.
Updates tailscale/corp#31755
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
Extract field comments from AST and include them in generated view
methods. Comments are preserved from the original struct fields to
provide documentation for the view accessors.
Fixes#16958
Signed-off-by: Maisem Ali <3953239+maisem@users.noreply.github.com>
fixestailscale/corp#26369
The suggested exit node is currently only calculated during a localAPI request.
For older UIs, this wasn't a bad choice - we could just fetch it on-demand when a menu
presented itself. For newer incarnations however, this is an always-visible field
that needs to react to changes in the suggested exit node's value.
This change recalculates the suggested exit node ID on netmap updates and
broadcasts it on the IPN bus. The localAPI version of this remains intact for the
time being.
Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
updates tailscale/corp#29841
Adds a node cap macOS UIs can query to determine
whether then should enable the new windowed UI.
Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
Pull the lock-bearing code into a closure, and use a clone rather than a
shallow copy of the hostinfo record.
Updates #11649
Change-Id: I4f1d42c42ce45e493b204baae0d50b1cbf82b102
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
The early unlock on this branch was required because the "send" method goes on
to acquire the mutex itself. Rather than release the lock just to acquire it
again, call the underlying locked helper directly.
Updates #11649
Change-Id: I50d81864a00150fc41460b7486a9c65655f282f5
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
In places where we are locking the LocakBackend and immediately deferring an
unlock, and where there is no shortcut path in the control flow below the
deferral, we do not need the unlockOnce helper. Replace all these with use of
the lock directly.
Updates #11649
Change-Id: I3e6a7110dfc9ec6c1d38d2585c5367a0d4e76514
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
Instead of referring to groups, which is a term of art for a different entity,
update the doc comments to more accurately describe what tags are in reference
to the policy document.
Updates #cleanup
Change-Id: Iefff6f84981985f834bae7c6a6c34044f53f2ea2
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
There are several methods within the LocalBackend that used an unusual and
error-prone lock discipline whereby they require the caller to hold the backend
mutex on entry, but release it on the way out.
In #11650 we added some support code to make this pattern more visible.
Now it is time to eliminate the pattern (at least within this package).
This is intended to produce no semantic changes, though I am relying on
integration tests and careful inspection to achieve that.
To the extent possible I preserved the existing control flow. In a few places,
however, I replaced this with an unlock/lock closure. This means we will
sometimes reacquire a lock only to release it again one frame up the stack, but
these operations are not performance sensitive and the legibility gain seems
worthwhile.
We can probably also pull some of these out into separate methods, but I did
not do that here so as to avoid other variable scope changes that might be hard
to see. I would like to do some more cleanup separately.
As a follow-up, we could also remove the unlockOnce helper, but I did not do
that here either.
Updates #11649
Change-Id: I4c92d4536eca629cfcd6187528381c33f4d64e20
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
The serve code leaves it up to the system's DNS resolver and netstack to
figure out how to reach the proxy destination. Combined with k8s-proxy
running in userspace mode, this means we can't rely on MagicDNS being
available or tailnet IPs being routable. I'd like to implement that as a
feature for serve in userspace mode, but for now the safer fix to get
kube-apiserver ProxyGroups consistently working in all environments is to
switch to using localhost as the proxy target instead.
This has a small knock-on in the code that does WhoIs lookups, which now
needs to check the X-Forwarded-For header that serve populates to get
the correct tailnet IP to look up, because the request's remote address
will be loopback.
Fixes#16920
Change-Id: I869ddcaf93102da50e66071bb00114cc1acc1288
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
Craig Hesling
Brad Fitzpatrick
Alex Chan
M. J. Fromberger
Percy Wegmann
License Updater
nikiUppal-TS
David Bond
Erisa A
Simon Law
James Tucker
Remy Guercio
Naman Sood
Joe Tsai
Patrick O'Doherty
Maisem Ali
Jonathan Nobels
Jordan Whited
Aaron Klotz
Claus Lensbøl
Kot C
Mohammed Naser
Need-an-AwP
Tom Proctor