Commit Graph

728 Commits (1dd9c44d51535f4234163f0c7576a844fd296ead)

Author SHA1 Message Date
Andrew Dunham fe009c134e ipn/ipnlocal: reset the dialPlan only when the URL is unchanged
Also, reset it in a few more places (e.g. logout, new blank profiles,
etc.) to avoid a few more cases where a pre-existing dialPlan can cause
a new Headscale server take 10+ seconds to connect.

Updates #11938

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I3095173a5a3d9720507afe4452548491e9e45a3e
6 months ago
Shaw Drastin 1fe073098c
Reset dial plan when switching profile (#11933)
When switching profile, the server URL can change (e.g.
because of switching to a self-hosted headscale instance).

If it is not reset here, dial plans returned by old
server (e.g. tailscale control server) will be used to
connect to new server (e.g. self-hosted headscale server),
and the register request will be blocked by it until
timeout, leading to very slow profile switches.

Updates #11938 11938

Signed-off-by: Shaw Drastin <showier.drastic0a@icloud.com>
6 months ago
Fran Bull 6a0fbacc28 appc: setting AdvertiseRoutes explicitly discards app connector routes
This fixes bugs where after using the cli to set AdvertiseRoutes users
were finding that they had to restart tailscaled before the app
connector would advertise previously learned routes again. And seems
more in line with user expectations.

Fixes #11006
Signed-off-by: Fran Bull <fran@tailscale.com>
7 months ago
Fran Bull 1bd1b387b2 appc: add flag shouldStoreRoutes and controlknob for it
When an app connector is reconfigured and domains to route are removed,
we would like to no longer advertise routes that were discovered for
those domains. In order to do this we plan to store which routes were
discovered for which domains.

Add a controlknob so that we can enable/disable the new behavior.

Updates #11008
Signed-off-by: Fran Bull <fran@tailscale.com>
7 months ago
Fran Bull 79836e7bfd appc: add RouteInfo struct and persist it to StateStore
Lays the groundwork for the ability to persist app connectors discovered
routes, which will allow us to stop advertising routes for a domain if
the app connector no longer monitors that domain.

Updates #11008
Signed-off-by: Fran Bull <fran@tailscale.com>
7 months ago
Brad Fitzpatrick b9adbe2002 net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon
In prep for most of the package funcs in net/interfaces to become
methods in a long-lived netmon.Monitor that can cache things.  (Many
of the funcs are very heavy to call regularly, whereas the long-lived
netmon.Monitor can subscribe to things from the OS and remember
answers to questions it's asked regularly later)

Updates tailscale/corp#10910
Updates tailscale/corp#18960
Updates #7967
Updates #3299

Change-Id: Ie4e8dedb70136af2d611b990b865a822cd1797e5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 6b95219e3a net/netmon, add: add netmon.State type alias of interfaces.State
... in prep for merging the net/interfaces package into net/netmon.

This is a no-op change that updates a bunch of the API signatures ahead of
a future change to actually move things (and remove the type alias)

Updates tailscale/corp#10910
Updates tailscale/corp#18960
Updates #7967
Updates #3299

Change-Id: I477613388f09389214db0d77ccf24a65bff2199c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 3672f29a4e net/netns, net/dns/resolver, etc: make netmon required in most places
The goal is to move more network state accessors to netmon.Monitor
where they can be cheaper/cached. But first (this change and others)
we need to make sure the one netmon.Monitor is plumbed everywhere.

Some notable bits:

* tsdial.NewDialer is added, taking a now-required netmon

* because a tsdial.Dialer always has a netmon, anything taking both
  a Dialer and a NetMon is now redundant; take only the Dialer and
  get the NetMon from that if/when needed.

* netmon.NewStatic is added, primarily for tests

Updates tailscale/corp#10910
Updates tailscale/corp#18960
Updates #7967
Updates #3299

Change-Id: I877f9cb87618c4eb037cee098241d18da9c01691
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Jonathan Nobels 71e9258ad9
ipn/ipnlocal: fix null dereference for early suggested exit node queries (#11885)
Fixes tailscale/corp#19558

A request for the suggested exit nodes that occurs too early in the
VPN lifecycle would result in a null deref of the netmap and/or
the netcheck report.  This checks both and errors out.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
7 months ago
Brad Fitzpatrick 745931415c health, all: remove health.Global, finish plumbing health.Tracker
Updates #11874
Updates #4136

Change-Id: I414470f71d90be9889d44c3afd53956d9f26cd61
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick a4a282cd49 control/controlclient: plumb health.Tracker
Updates #11874
Updates #4136

Change-Id: Ia941153bd83523f0c8b56852010f5231d774d91a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 6d69fc137f ipn/{ipnlocal,localapi},wgengine{,/magicsock}: plumb health.Tracker
Down to 25 health.Global users. After this remains controlclient &
net/dns & wgengine/router.

Updates #11874
Updates #4136

Change-Id: I6dd1856e3d9bf523bdd44b60fb3b8f7501d5dc0d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 723c775dbb tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing
This adds a health.Tracker to tsd.System, accessible via
a new tsd.System.HealthTracker method.

In the future, that new method will return a tsd.System-specific
HealthTracker, so multiple tsnet.Servers in the same process are
isolated. For now, though, it just always returns the temporary
health.Global value. That permits incremental plumbing over a number
of changes. When the second to last health.Global reference is gone,
then the tsd.System.HealthTracker implementation can return a private
Tracker.

The primary plumbing this does is adding it to LocalBackend and its
dozen and change health calls. A few misc other callers are also
plumbed. Subsequent changes will flesh out other parts of the tree
(magicsock, controlclient, etc).

Updates #11874
Updates #4136

Change-Id: Id51e73cfc8a39110425b6dc19d18b3975eac75ce
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 5b32264033 health: break Warnable into a global and per-Tracker value halves
Previously it was both metadata about the class of warnable item as
well as the value.

Now it's only metadata and the value is per-Tracker.

Updates #11874
Updates #4136

Change-Id: Ia1ed1b6c95d34bc5aae36cffdb04279e6ba77015
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick ebc552d2e0 health: add Tracker type, in prep for removing global variables
This moves most of the health package global variables to a new
`health.Tracker` type.

But then rather than plumbing the Tracker in tsd.System everywhere,
this only goes halfway and makes one new global Tracker
(`health.Global`) that all the existing callers now use.

A future change will eliminate that global.

Updates #11874
Updates #4136

Change-Id: I6ee27e0b2e35f68cb38fecdb3b2dc4c3f2e09d68
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Anton Tolchanov 31e6bdbc82 ipn/ipnlocal: always stop the engine on auth when key has expired
If seamless key renewal is enabled, we typically do not stop the engine
(deconfigure networking). However, if the node key has expired there is
no point in keeping the connection up, and it might actually prevent
key renewal if auth relies on endpoints routed via app connectors.

Fixes tailscale/corp#5800

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
7 months ago
Andrew Lytvynov b743b85dad
ipn/ipnlocal,ssh/tailssh: reject c2n /update if SSH conns are active (#11820)
Since we already track active SSH connections, it's not hard to
proactively reject updates until those finish. We attempt to do the same
on the control side, but the detection latency for new connections is in
the minutes, which is not fast enough for common short sessions.

Handle a `force=true` query parameter to override this behavior, so that
control can still trigger an update on a server where some long-running
abandoned SSH session is open.

Updates https://github.com/tailscale/corp/issues/18556

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
7 months ago
Andrew Lytvynov bff527622d
ipn/ipnlocal,clientupdate: disallow auto-updates in containers (#11814)
Containers are typically immutable and should be updated as a whole (and
not individual packages within). Deny enablement of auto-updates in
containers.

Also, add the missing check in EditPrefs in LocalAPI, to catch cases
like tailnet default auto-updates getting enabled for nodes that don't
support it.

Updates #11544

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
7 months ago
Percy Wegmann d16c1293e9 ipn/ipnlocal: remove origin and referer headers from Taildrive requests
peerapi does not want these, but rclone includes them.
Removing them allows rclone to work with Taildrive configured
as a WebDAV remote.

Updates #cleanup

Signed-off-by: Percy Wegmann <percy@tailscale.com>
7 months ago
Percy Wegmann 94c0403104 ipn/ipnlocal: strip origin and referer headers from Taildrive requests
peerapi does not want these, but rclone includes them.
Stripping them out allows rclone to work with Taildrive configured
as a WebDAV remote.

Updates #cleanup

Signed-off-by: Percy Wegmann <percy@tailscale.com>
7 months ago
Andrew Lytvynov 22bd506129
ipn/ipnlocal: hold the mutex when in onTailnetDefaultAutoUpdate (#11786)
Turns out, profileManager is not safe for concurrent use and I missed
all the locking infrastructure in LocalBackend, oops.

I was not able to reproduce the race even with `go test -count 100`, but
this seems like an obvious fix.

Fixes #11773

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
7 months ago
Brad Fitzpatrick 7c1d6e35a5 all: use Go 1.22 range-over-int
Updates #11058

Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Jonathan Nobels 7e2b4268d6
ipn/{localapi, ipnlocal}: forget the prior exit node when localAPI is used to zero the ExitNodeID (#11681)
Updates tailscale/corp#18724

When localAPI clients directly set ExitNodeID to "", the expected behaviour is that the prior exit node also gets zero'd - effectively setting the UI state back to 'no exit node was ever selected'

The IntenalExitNodePrior has been changed to be a non-opaque type, as it is read by the UI to render the users last selected exit node, and must be concrete. Future-us can either break this, or deprecate it and replace it with something more interesting.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
7 months ago
Brad Fitzpatrick 3c1e2bba5b ipn/ipnlocal: remove outdated iOS hacky workaround in Start
We haven't needed this hack for quite some time Andrea says.

Updates #11649

Change-Id: Ie854b7edd0a01e92495669daa466c7c0d57e7438
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick dd6c76ea24 ipn: remove unused Options.LegacyMigrationPrefs
I'm on a mission to simplify LocalBackend.Start and its locking
and deflake some tests.

I noticed this hasn't been used since March 2023 when it was removed
from the Windows client in corp 66be796d33c.

So, delete.

Updates #11649

Change-Id: I40f2cb75fb3f43baf23558007655f65a8ec5e1b2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 7ec0dc3834 ipn/ipnlocal: make StartLoginInteractive take (yet unused) context
In prep for future fix to undermentioned issue.

Updates tailscale/tailscale#7036

Change-Id: Ide114db917dcba43719482ffded6a9a54630d99e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Claire Wang 9171b217ba
cmd/tailscale, ipn/ipnlocal: add suggest exit node CLI option (#11407)
Updates tailscale/corp#17516

Signed-off-by: Claire Wang <claire@tailscale.com>
7 months ago
Brad Fitzpatrick b9aa7421d6 ipn/ipnlocal: remove some dead code (legacyBackend methods) from LocalBackend
Nothing used it.

Updates #11649

Change-Id: Ic1c331d947974cd7d4738ff3aafe9c498853689e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 68043a17c2 ipn/ipnlocal: centralize assignments to cc + ccAuto in new method
cc vs ccAuto is a mess. It needs to go. But this is a baby step towards
getting there.

Updates #11649

Change-Id: I34f33934844e580bd823a7d8f2b945cf26c87b3b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 970b1e21d0 ipn/ipnlocal: inline assertClientLocked into its now sole caller
Updates #11649

Change-Id: I8e2a5e59125a0cad5c0a8c9ed8930585f1735d03
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 170c618483 ipn/ipnlocal: remove dead code now that Android uses LocalAPI instead
The new Android app and its libtailscale don't use this anymore;
it uses LocalAPI like other clients now.

Updates #11649

Change-Id: Ic9f42b41e0e0280b82294329093dc6c275f41d50
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
kari-ts 1cd51f95c7
ipnlocal: enable allow LAN for android (#11709)
Updates tailscale/corp#18984
Updates tailscale/corp#18202
7 months ago
Brad Fitzpatrick a5e1f7d703 ipn/{ipnlocal,localapi}: add API to toggle use of exit node
This is primarily for GUIs, so they don't need to remember the most
recently used exit node themselves.

This adds some CLI commands, but they're disabled and behind the WIP
envknob, as we need to consider naming (on/off is ambiguous with
running an exit node, etc) as well as automatic exit node selection in
the future. For now the CLI commands are effectively developer debug
things to test the LocalAPI.

Updates tailscale/corp#18724

Change-Id: I9a32b00e3ffbf5b29bfdcad996a4296b5e37be7e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick aa084a29c6 ipn/ipnlocal: name the unlockOnce type, plumb more, add Unlock method
This names the func() that Once-unlocked LocalBackend.mu. It does so
both for docs and because it can then have a method: Unlock, for the
few points that need to explicitly unlock early (the cause of all this
mess). This makes those ugly points easy to find, and also can then
make them stricter, panicking if the mutex is already unlocked. So a
normal call to the func just once-releases the mutex, returning false
if it's already done, but the Unlock method is the strict one.

Then this uses it more, so most the b.mu.Unlock calls remaining are
simple cases and usually defers.

Updates #11649

Change-Id: Ia070db66c54a55e59d2f76fdc26316abf0dd4627
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick 5e7c0b025c ipn/ipnlocal: add some "lockedOnEntry" helpers + guardrails, fix bug
A number of methods in LocalBackend (with suffixed "LockedOnEntry")
require b.mu be held but unlock it on the way out. That's asymmetric
and atypical and error prone.

This adds a helper method to LocalBackend that locks the mutex and
returns a sync.OnceFunc that unlocks the mutex. Then we pass around
that unlocker func down the chain to make it explicit (and somewhat
type check the passing of ownership) but also let the caller defer
unlock it, in the case of errors/panics that happen before the callee
gets around to calling the unlock.

This revealed a latent bug in LocalBackend.DeleteProfile which double
unlocked the mutex.

Updates #11649

Change-Id: I002f77567973bd77b8906bfa4ec9a2049b89836a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Charlotte Brandhorst-Satzkorn 98cf71cd73
tailscale: switch tailfs to drive syntax for api and logs (#11625)
This change switches the api to /drive, rather than the previous /tailfs
as well as updates the log lines to reflect the new value. It also
cleans up some existing tailfs references.

Updates tailscale/corp#16827

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
7 months ago
Charlotte Brandhorst-Satzkorn 93618a3518
tailscale: update tailfs functions and vars to use drive naming (#11597)
This change updates all tailfs functions and the majority of the tailfs
variables to use the new drive naming.

Updates tailscale/corp#16827

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
7 months ago
Claire Wang 262fa8a01e
ipn/ipnlocal: populate peers' capabilities (#11365)
Populates capabilties field of peers in ipn status.
Updates tailscale/corp#17516

Signed-off-by: Claire Wang <claire@tailscale.com>
7 months ago
Charlotte Brandhorst-Satzkorn 14683371ee
tailscale: update tailfs file and package names (#11590)
This change updates the tailfs file and package names to their new
naming convention.

Updates #tailscale/corp#16827

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
7 months ago
James Tucker 7558a1d594 ipn/ipnlocal: disable sockstats on (unstable) mobile by default
We're tracking down a new instance of memory usage, and excessive memory usage
from sockstats is definitely not going to help with debugging, so disable it by
default on mobile.

Updates tailscale/corp#18514

Signed-off-by: James Tucker <james@tailscale.com>
7 months ago
Percy Wegmann 66e4d843c1 ipn/localapi: add support for multipart POST to file-put
This allows sending multiple files via Taildrop in one request.
Progress is tracked via ipn.Notify.

Updates tailscale/corp#18202

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Percy Wegmann bed818a978 ipn/localapi: add support for multipart POST to file-put
This allows sending multiple files via Taildrop in one request.
Progress is tracked via ipn.Notify.

Updates tailscale/corp#18202

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Percy Wegmann eb42a16da9 ipn/ipnlocal: report Taildrive access message on failed responses
For example, if we get a 404 when downloading a file, we'll report access.

Also, to reduce verbosty of logs, this elides 0 length files.

Updates tailscale/corp#17818

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Charlotte Brandhorst-Satzkorn acb611f034
ipn/localipn: introduce logs for tailfs (#11496)
This change introduces some basic logging into the access and share
pathways for tailfs.

Updates tailscale/corp#17818

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
8 months ago
Brad Fitzpatrick a36cfb4d3d tailcfg, ipn/ipnlocal, wgengine/magicsock: add only-tcp-443 node attr
Updates tailscale/corp#17879

Change-Id: I0dc305d147b76c409cf729b599a94fa723aef0e0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
8 months ago
Brad Fitzpatrick 7b34154df2 all: deprecate Node.Capabilities (more), remove PeerChange.Capabilities [capver 89]
First we had Capabilities []string. Then
https://tailscale.com/blog/acl-grants (#4217) brought CapMap, a
superset of Capabilities. Except we never really finished the
transition inside the codebase to go all-in on CapMap. This does so.

Notably, this coverts Capabilities on the wire early to CapMap
internally so the code can only deal in CapMap, even against an old
control server.

In the process, this removes PeerChange.Capabilities support, which no
known control plane sent anyway. They can and should use
PeerChange.CapMap instead.

Updates #11508
Updates #4217

Change-Id: I872074e226b873f9a578d9603897b831d50b25d9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
8 months ago
Brad Fitzpatrick b104688e04 ipn/ipnlocal, types/netmap: replace hasCapability with set lookup on NetworkMap
When node attributes were super rare, the O(n) slice scans looking for
node attributes was more acceptable. But now more code and more users
are using increasingly more node attributes. Time to make it a map.

Noticed while working on tailscale/corp#17879

Updates #cleanup

Change-Id: Ic17c80341f418421002fbceb47490729048756d2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
8 months ago
Mario Minardi d2ccfa4edd
cmd/tailscale,ipn/ipnlocal: enable web client over quad 100 by default (#11419)
Enable the web client over 100.100.100.100 by default. Accepting traffic
from [tailnet IP]:5252 still requires setting the `webclient` user pref.

Updates https://github.com/tailscale/tailscale/issues/10261

Signed-off-by: Mario Minardi <mario@tailscale.com>
8 months ago
Mario Minardi e0886ad167
ipn/ipnlocal, tailcfg: add disable-web-client node attribute (#11418)
Add a disable-web-client node attribute and add handling for disabling
the web client when this node attribute is set.

Updates https://github.com/tailscale/tailscale/issues/10261

Signed-off-by: Mario Minardi <mario@tailscale.com>
8 months ago
Andrew Lytvynov decd9893e4
ipn/ipnlocal: validate domain of PopBrowserURL on default control URL (#11394)
If the client uses the default Tailscale control URL, validate that all
PopBrowserURLs are under tailscale.com or *.tailscale.com. This reduces
the risk of a compromised control plane opening phishing pages for
example.

The client trusts control for many other things, but this is one easy
way to reduce that trust a bit.

Fixes #11393

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
8 months ago
Brad Fitzpatrick ad33e47270 ipn/{ipnlocal,localapi}: add debug verb to force spam IPN bus NetMap
To force the problem in its worst case scenario before fixing it.

Updates tailscale/corp#17859

Change-Id: I2c8b8e5f15c7801e1ab093feeafac52ec175a763
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
8 months ago
Percy Wegmann 6c160e6321 ipn,tailfs: tie TailFS share configuration to user profile
Previously, the configuration of which folders to share persisted across
profile changes. Now, it is tied to the user's profile.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Percy Wegmann fd942b5384 ipn/ipnlocal: reduce allocations in TailFS share notifications
This eliminates unnecessary map.Clone() calls and also eliminates
repetitive notifications about the same set of shares.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Percy Wegmann e324a5660f ipn: include full tailfs shares in ipn notifications
This allows the Mac application to regain access to restricted
folders after restarts.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
Brad Fitzpatrick b68a09cb34 ipn/ipnlocal: make active IPN sessions keyed by sessionID
We used a HandleSet before when we didn't have a unique handle. But a
sessionID is a unique handle, so use that instead. Then that replaces
the other map we had.

And now we'll have a way to look up an IPN session by sessionID for
later.

Updates tailscale/corp#17859

Change-Id: I5f647f367563ec8783c643e49f93817b341d9064
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
9 months ago
Percy Wegmann 2d5d6f5403 ipn,wgengine: only intercept TailFS traffic on quad 100
This fixes a regression introduced with 993acf4 and released in
v1.60.0.

The regression caused us to intercept all userspace traffic to port
8080 which prevented users from exposing their own services to their
tailnet at port 8080.

Now, we only intercept traffic to port 8080 if it's bound for
100.100.100.100 or fd7a:115c:a1e0::53.

Fixes #11283

Signed-off-by: Percy Wegmann <percy@tailscale.com>
(cherry picked from commit 17cd0626f3)
9 months ago
Anton Tolchanov 8cc5c51888 health: warn about reverse path filtering and exit nodes
When reverse path filtering is in strict mode on Linux, using an exit
node blocks all network connectivity. This change adds a warning about
this to `tailscale status` and the logs.

Example in `tailscale status`:

```
- not connected to home DERP region 22
- The following issues on your machine will likely make usage of exit nodes impossible: [interface "eth0" has strict reverse-path filtering enabled], please set rp_filter=2 instead of rp_filter=1; see https://github.com/tailscale/tailscale/issues/3310
```

Example in the logs:
```
2024/02/21 21:17:07 health("overall"): error: multiple errors:
	not in map poll
	The following issues on your machine will likely make usage of exit nodes impossible: [interface "eth0" has strict reverse-path filtering enabled], please set rp_filter=2 instead of rp_filter=1; see https://github.com/tailscale/tailscale/issues/3310
```

Updates #3310

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
9 months ago
Nick Khyl 7ef1fb113d cmd/tailscaled, ipn/ipnlocal, wgengine: shutdown tailscaled if wgdevice is closed
Tailscaled becomes inoperative if the Tailscale Tunnel wintun adapter is abruptly removed.
wireguard-go closes the device in case of a read error, but tailscaled keeps running.
This adds detection of a closed WireGuard device, triggering a graceful shutdown of tailscaled.
It is then restarted by the tailscaled watchdog service process.

Fixes #11222

Signed-off-by: Nick Khyl <nickk@tailscale.com>
9 months ago
Brad Fitzpatrick e1bd7488d0 all: remove LenIter, use Go 1.22 range-over-int instead
Updates #11058
Updates golang/go#65685

Change-Id: Ibb216b346e511d486271ab3d84e4546c521e4e22
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
9 months ago
Andrew Dunham 52f16b5d10 doctor/ethtool, ipn/ipnlocal: add ethtool bugreport check
Updates #11137

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Idbe862d80e428adb044249c47d9096b87f29d5d8
9 months ago
Percy Wegmann c42a4e407a tailfs: listen for local clients only on 100.100.100.100
FileSystemForLocal was listening on the node's Tailscale address,
which potentially exposes the user's view of TailFS shares to other
Tailnet users. Remote nodes should connect to exported shares via
the peerapi.

This removes that code so that FileSystemForLocal is only avaialable
on 100.100.100.100:8080.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
Maisem Ali 370ecb4654 tailcfg: remove UserProfile.Groups
Removing as per go/group-all-the-things.

Updates tailscale/corp#17445

Signed-off-by: Maisem Ali <maisem@tailscale.com>
9 months ago
Percy Wegmann 87154a2f88 tailfs: fix startup issues on windows
Starts TailFS for Windows too, initializes shares on startup.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
Percy Wegmann ddcffaef7a tailfs: disable TailFSForLocal via policy
Adds support for node attribute tailfs:access. If this attribute is
not present, Tailscale will not accept connections to the local TailFS
server at 100.100.100.100:8080.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
Percy Wegmann abab0d4197 tailfs: clean up naming and package structure
- Restyles tailfs -> tailFS
- Defines interfaces for main TailFS types
- Moves implemenatation of TailFS into tailfsimpl package

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
Percy Wegmann 993acf4475 tailfs: initial implementation
Add a WebDAV-based folder sharing mechanism that is exposed to local clients at
100.100.100.100:8080 and to remote peers via a new peerapi endpoint at
/v0/tailfs.

Add the ability to manage folder sharing via the new 'share' CLI sub-command.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
Andrea Gottardo 6c79f55d48
ipnlocal: force-regen new authURL when it is too old (#10971)
Fixes tailscale/support-escalations#23.

authURLs returned by control expire after 1 hour from creation. Customer reported that the Tailscale client on macOS would sending users to a stale authentication page when clicking on the `Login...` menu item. This can happen when clicking on Login after leaving the device unattended for several days. The device key expires, leading to the creation of a new authURL, however the client doesn't keep track of when the authURL was created. Meaning that `login-interactive` would send the user to an authURL that had expired server-side a long time before.

This PR ensures that whenever `login-interactive` is called via LocalAPI, an authURL that is too old won't be used. We force control to give us a new authURL whenever it's been more than 30 minutes since the last authURL was sent down from control.



Apply suggestions from code review




Set interval to 6 days and 23 hours

Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
9 months ago
Brad Fitzpatrick 2bd3c1474b util/cmpx: delete now that we're using Go 1.22
Updates #11058

Change-Id: I09dea8e86f03ec148b715efca339eab8b1f0f644
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
9 months ago
James Tucker ba70cbb930 ipn/ipnlocal: fix app connector route advertisements on exit nodes
If an app connector is also configured as an exit node, it should still
advertise discovered routes that are not covered by advertised routes,
excluding the exit node routes.

Updates tailscale/corp#16928

Signed-off-by: James Tucker <james@tailscale.com>
9 months ago
Percy Wegmann fad6bae764 ipnlocal: log failure to get ssh host keys
When reporting ssh host keys to control, log a warning
if we're unable to get the SSH host keys.

Updates tailscale/escalations#21

Signed-off-by: Percy Wegmann <percy@tailscale.com>
10 months ago
Jordan Whited 8b47322acc
wgengine/magicsock: implement probing of UDP path lifetime (#10844)
This commit implements probing of UDP path lifetime on the tail end of
an active direct connection. Probing configuration has two parts -
Cliffs, which are various timeout cliffs of interest, and
CycleCanStartEvery, which limits how often a probing cycle can start,
per-endpoint. Initially a statically defined default configuration will
be used. The default configuration has cliffs of 10s, 30s, and 60s,
with a CycleCanStartEvery of 24h. Probing results are communicated via
clientmetric counters. Probing is off by default, and can be enabled
via control knob. Probing is purely informational and does not yet
drive any magicsock behaviors.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
10 months ago
Charlotte Brandhorst-Satzkorn ce4553b988 appc,ipn/ipnlocal: optimize preference adjustments when routes update
This change allows us to perform batch modification for new route
advertisements and route removals. Additionally, we now handle the case
where newly added routes are covered by existing ranges.

This change also introduces a new appctest package that contains some
shared functions used for testing.

Updates tailscale/corp#16833

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
10 months ago
James Tucker 8250582fe6 ipn/ipnlocal: make app connector configuration concurrent
If there are routes changes as a side effect of an app connector
configuration update, the connector configuration may want to reenter a
lock, so must be started asynchronously.

Updates tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
10 months ago
James Tucker 24df1ef1ee appc,ipn/ipnlocal,types/appctype: implement control provided routes
Control can now send down a set of routes along with the domains, and
the routes will be advertised, with any newly overlapped routes being
removed to reduce the size of the routing table.

Fixes tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
10 months ago
Will Norris 236531c5fc ipn/ipnserver: always allow Windows SYSTEM user to connect
When establishing connections to the ipnserver, we validate that the
local user is allowed to connect.  If Tailscale is currently being
managed by a different user (primarily for multi-user Windows installs),
we don't allow the connection.

With the new device web UI, the inbound connection is coming from
tailscaled itself, which is often running as "NT AUTHORITY\SYSTEM".
In this case, we still want to allow the connection, even though it
doesn't match the user running the Tailscale GUI. The SYSTEM user has
full access to everything on the system anyway, so this doesn't escalate
privileges.

Eventually, we want the device web UI to run outside of the tailscaled
process, at which point this exception would probably not be needed.

Updates tailscale/corp#16393

Signed-off-by: Will Norris <will@tailscale.com>
10 months ago
Rhea Ghosh 4ce33c9758
taildrop: remove breaking abstraction layers for apple (#10728)
Removes the avoidFinalRename logic and all associated code as it is no longer required by the Apple clients.
Enables resume logic to be usable for Apple clients.

Fixes tailscale/corp#14772

Signed-off-by: Rhea Ghosh <rhea@tailscale.com>
10 months ago
James 'zofrex' Sanderson 10c595d962
ipn/ipnlocal: refresh node key without blocking if cap enabled (#10529)
Updates tailscale/corp#16016

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
Co-authored-by: Maisem Ali <maisem@tailscale.com>
10 months ago
Andrew Dunham cae6edf485 ipn/ipnlocal: fix data race with capForcedNetfilter field
Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1fdad454198d7ea4a898dbff3062818b0db35167
11 months ago
Andrew Lytvynov 2716250ee8
all: cleanup unused code, part 2 (#10670)
And enable U1000 check in staticcheck.

Updates #cleanup

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
11 months ago
James Tucker 0957258f84 appc,ipn: prevent undesirable route advertisements
Individual route advertisements that are covered by existing routes are
no longer advertised. If an upstream returns 0.0.0.0, 127.x, and other
common unwanted addresses those are also rejected.

Updates #16425
Signed-off-by: James Tucker <james@tailscale.com>
11 months ago
Andrew Dunham a661287c4b util/cmpx: remove code that's in the stdlib now
The cmpx.Compare function (and associated interface) are now available
in the standard library as cmp.Compare. Remove our version of it and use
the version from the standard library.

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I4be3ac63d466c05eb7a0babb25cb0d41816fbd53
11 months ago
Andrew Lytvynov 945cf836ee
ipn: apply tailnet-wide default for auto-updates (#10508)
When auto-update setting in local Prefs is unset, apply the tailnet
default value from control. This only happens once, when we apply the
default (or when the user manually overrides it), tailnet default no
longer affects the node.

Updates #16244

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
11 months ago
Andrew Dunham 3ae562366b ipn/ipnlocal: fix usage of slices.Compact
Fixes #10595

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I4e96e9c43b8dedb5f88b03368c01b0e46723e15b
11 months ago
Adrian Dewhurst 86aa0485a6 ipn/ipnlocal, util/syspolicy: make run exit node a preference option
Previously, the "RunExitNode" policy merely controlled the visibility of
the "run as exit node" menu item, not the setting itself. This migrates
that setting to a preference option named "AdvertiseExitNode".

Updates ENG-2138

Change-Id: Ia6a125beb6b4563d380c6162637ce4088f1117a0
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
11 months ago
Adrian Dewhurst f706a3abd0 ipn/ipnlocal, util/syspolicy: add auto update policy
Due to the Sparkle preference naming convention, macsys already has a
policy key named "ApplyUpdates" that merely shows or hides the menu
item that controls if auto updates are installed, rather than directly
controlling the setting.

For other platforms, we are going to use "InstallUpdates" instead
because it seemed better than the other options that were considered.

Updates ENG-2127
Updates tailscale/corp#16247

Change-Id: Ia6a125beb6b4563d380c6162637ce4088f1117a0
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
11 months ago
Adrian Dewhurst 1a4d423328 ipn/ipnlocal: add additional syspolicy enforcement
This adds support for enforcing exit node LAN access, DNS and subnet
routes.

Adding new preference policies was getting repetitive, so this turns
some of the boilerplate into a table.

Updates tailscale/corp#15585
Updates ENG-2240

Change-Id: Iabd3c42b0ae120b3145fac066c5caa7fc4d67824
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
11 months ago
Adrian Dewhurst af32d1c120 ipn/ipnlocal: better enforce system policies
Previously, policies affected the default prefs for a new profile, but
that does not affect existing profiles. This change ensures that
policies are applied whenever preferences are loaded or changed, so a
CLI or GUI client that does not respect the policies will still be
overridden.

Exit node IP is dropped from this PR as it was implemented elsewhere
in #10172.

Fixes tailscale/corp#15585

Change-Id: Ide4c3a4b00a64e43f506fa1fab70ef591407663f
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
11 months ago
Naman Sood 0a59754eda linuxfw,wgengine/route,ipn: add c2n and nodeattrs to control linux netfilter
Updates tailscale/corp#14029.

Signed-off-by: Naman Sood <mail@nsood.in>
11 months ago
Sonia Appasamy 7a4ba609d9 client/web: show features based on platform support
Hiding/disabling UI features when not available on the running
client.

Updates #10261

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
12 months ago
Claire Wang 8af503b0c5
syspolicy: add exit node related policies (#10172)
Adds policy keys ExitNodeID and ExitNodeIP.
Uses the policy keys to determine the exit node in preferences.
Fixes tailscale/corp#15683

Signed-off-by: Claire Wang <claire@tailscale.com>
12 months ago
Sonia Appasamy bc4e303846 ipn/ipnstate: add AllowedIPs to PeerStatus
Adds AllowedIPs to PeerStatus, allowing for easier lookup of the
routes allowed to be routed to a node. Will be using the AllowedIPs
of the self node from the web client interface to display approval
status of advertised routes.

Updates #10261

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
12 months ago
Andrew Lytvynov ac4b416c5b
cmd/tailscale,ipn/ipnlocal: pass available update as health message (#10420)
To be consistent with the formatting of other warnings, pass available
update health message instead of handling ClientVersion in he CLI.

Fixes #10312

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
12 months ago
Tom DNetto 8a660a6513 ipn/ipnlocal: update hostinfo when app connector state is toggled
Updates: https://github.com/tailscale/corp/issues/16041
Signed-off-by: Tom DNetto <tom@tailscale.com>
12 months ago
Tom DNetto 611e0a5bcc appc,ipn/local: support wildcard when matching app-connectors
Updates: ENG-2453
Signed-off-by: Tom DNetto <tom@tailscale.com>
12 months ago
Marwan Sulaiman 2dc0645368 ipn/ipnlocal,cmd/tailscale: persist tailnet name in user profile
This PR starts to persist the NetMap tailnet name in SetPrefs so that tailscaled
clients can use this value to disambiguate fast user switching from one tailnet
to another that are under the same exact login. We will also try to backfill
this information during backend starts and profile switches so that users don't
have to re-authenticate their profile. The first client to use this new
information is the CLI in 'tailscale switch -list' which now uses text/tabwriter
to display the ID, Tailnet, and Account. Since account names are ambiguous, we
allow the user to pass 'tailscale switch ID' to specify the exact tailnet they
want to switch to.

Updates #9286

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
12 months ago
Brad Fitzpatrick 3bd382f369 wgengine/magicsock: add DERP homeless debug mode for testing
In DERP homeless mode, a DERP home connection is not sought or
maintained and the local node is not reachable.

Updates #3363
Updates tailscale/corp#396

Change-Id: Ibc30488ac2e3cfe4810733b96c2c9f10a51b8331
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Sonia Appasamy 055394f3be ipn/ipnlocal: add mutex to webClient struct
Adds a new sync.Mutex field to the webClient struct, rather than
using the general LocalBackend mutex. Since webClientGetOrInit
(previously WebClientInit) gets called on every connection, we
want to avoid holding the lock on LocalBackend just to check if
the server is initialized.

Moves all web_client.go funcs over to using the webClient.mu field.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
1 year ago
Will Norris 9b537f7c97 ipn: remove the preview-webclient node capability
Now that 1.54 has released, and the new web client will be included in
1.56, we can remove the need for the node capability. This means that
all 1.55 unstable builds, and then eventually the 1.56 build, will work
without setting the node capability.

The web client still requires the "webclient" user pref, so this does
NOT mean that the web client will be on by default for all devices.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago
Brad Fitzpatrick 1825d2337b
ipn/ipnlocal: respect ExitNodeAllowLANAccess on iOS (#10230)
Updates tailscale/corp#15783

Change-Id: I1082fbfff61a241ebd3b8275be0f45e329b67561

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Joe Tsai 975c5f7684
taildrop: lazily perform full deletion scan after first taildrop use (#10137)
Simply reading the taildrop directory can pop up security dialogs
on platforms like macOS. Avoid this by only performing garbage collection
of partial and deleted files after the first received taildrop file,
which would have prompted the security dialog window.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
1 year ago