Commit Graph

663 Commits (955ad12489e371d12c3855c48ad4cb3c8ce133f3)

Author SHA1 Message Date
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>
8 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>
8 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>
8 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>
8 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>
8 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>
8 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>
8 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>
8 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>
9 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>
9 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>
9 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>
10 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>
10 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>
10 months ago