Commit Graph

596 Commits (19b31ac9a667dcf4eb905c86d45c0f1fa6ff751d)

Author SHA1 Message Date
Andrew Lytvynov ce5c80d0fe
clientupdate: exec systemctl instead of using dbus to restart (#11923)
Shell out to "systemctl", which lets us drop an extra dependency.

Updates https://github.com/tailscale/corp/issues/18935

Signed-off-by: Andrew Lytvynov <awly@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
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 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
Joe Tsai 63b3c82587
ipn/local: log OS-specific diagnostic information as JSON (#11700)
There is an undocumented 16KiB limit for text log messages.
However, the limit for JSON messages is 256KiB.
Even worse, logging JSON as text results in significant overhead
since each double quote needs to be escaped.

Instead, use logger.Logf.JSON to explicitly log the info as JSON.

We also modify osdiag to return the information as structured data
rather than implicitly have the package log on our behalf.
This gives more control to the caller on how to log.

Updates #7802

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
7 months ago
Aaron Klotz 7132b782d4 hostinfo: use Distro field for distinguishing Windows Server builds
Some editions of Windows server share the same build number as their
client counterpart; we must use an additional field found in the OS
version information to distinguish between them.

Even though "Distro" has Linux connotations, it is the most appropriate
hostinfo field. What is Windows Server if not an alternate distribution
of Windows? This PR populates Distro with "Server" when applicable.

Fixes #11785

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
8 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>
8 months ago
Brad Fitzpatrick a1abd12f35 cmd/tailscaled, net/tstun: build for aix/ppc64
At least in userspace-networking mode.

Fixes #11361

Change-Id: I78d33f0f7e05fe9e9ee95b97c99b593f8fe498f2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
8 months ago
Joe Tsai 7a77a2edf1
logtail: optimize JSON processing (#11671)
Changes made:

* Avoid "encoding/json" for JSON processing, and instead use
"github.com/go-json-experiment/json/jsontext".
Use jsontext.Value.IsValid for validation, which is much faster.
Use jsontext.AppendQuote instead of our own JSON escaping.

* In drainPending, use a different maxLen depending on lowMem.
In lowMem mode, it is better to perform multiple uploads
than it is to construct a large body that OOMs the process.

* In drainPending, if an error is encountered draining,
construct an error message in the logtail JSON format
rather than something that is invalid JSON.

* In appendTextOrJSONLocked, use jsontext.Decoder to check
whether the input is a valid JSON object. This is faster than
the previous approach of unmarshaling into map[string]any and
then re-marshaling that data structure.
This is especially beneficial for network flow logging,
which produces relatively large JSON objects.

* In appendTextOrJSONLocked, enforce maxSize on the input.
If too large, then we may end up in a situation where the logs
can never be uploaded because it exceeds the maximum body size
that the Tailscale logs service accepts.

* Use "tailscale.com/util/truncate" to properly truncate a string
on valid UTF-8 boundaries.

* In general, remove unnecessary spaces in JSON output.

Performance:

    name       old time/op    new time/op    delta
    WriteText     776ns ± 2%     596ns ± 1%   -23.24%  (p=0.000 n=10+10)
    WriteJSON     110µs ± 0%       9µs ± 0%   -91.77%  (p=0.000 n=8+8)

    name       old alloc/op   new alloc/op   delta
    WriteText      448B ± 0%        0B       -100.00%  (p=0.000 n=10+10)
    WriteJSON    37.9kB ± 0%     0.0kB ± 0%   -99.87%  (p=0.000 n=10+10)

    name       old allocs/op  new allocs/op  delta
    WriteText      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=10+10)
    WriteJSON     1.08k ± 0%     0.00k ± 0%   -99.91%  (p=0.000 n=10+10)

For text payloads, this is 1.30x faster.
For JSON payloads, this is 12.2x faster.

Updates #cleanup
Updates tailscale/corp#18514

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
8 months ago
James Tucker db760d0bac cmd/tailscaled: move cleanup to an implicit action during startup
This removes a potentially increased boot delay for certain boot
topologies where they block on ExecStartPre that may have socket
activation dependencies on other system services (such as
systemd-resolved and NetworkManager).

Also rename cleanup to clean up in affected/immediately nearby places
per code review commentary.

Fixes #11599

Signed-off-by: James Tucker <james@tailscale.com>
8 months ago
Maisem Ali 3f4c5daa15 wgengine/netstack: remove SubnetRouterWrapper
It was used when we only supported subnet routers on linux
and would nil out the SubnetRoutes slice as no other router
worked with it, but now we support subnet routers on ~all platforms.

The field it was setting to nil is now only used for network logging
and nowhere else, so keep the field but drop the SubnetRouterWrapper
as it's not useful.

Updates #cleanup

Change-Id: Id03f9b6ec33e47ad643e7b66e07911945f25db79
Signed-off-by: Maisem Ali <maisem@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
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
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 8b8b315258 net/tstun: use gaissmai/bart instead of tempfork/device
This implementation uses less memory than tempfork/device,
which helps avoid OOM conditions in the iOS VPN extension when
switching to a Tailnet with ExitNode routing enabled.

Updates tailscale/corp#18514

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Joe Tsai 85febda86d
all: use zstdframe where sensible (#11491)
Use the zstdframe package where sensible instead of plumbing
around our own zstd.Encoder just for stateless operations.

This causes logtail to have a dependency on zstd,
but that's arguably okay since zstd support is implicit
to the protocol between a client and the logging service.
Also, virtually every caller to logger.NewLogger was
manually setting up a zstd.Encoder anyways,
meaning that zstd was functionally always a dependency.

Updates #cleanup
Updates tailscale/corp#18514

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
8 months ago
Brad Fitzpatrick 69f4b4595a wgengine{,/wgint}: add wgint.Peer wrapper type, add to wgengine.Engine
This adds a method to wgengine.Engine and plumbed down into magicsock
to add a way to get a type-safe Tailscale-safe wrapper around a
wireguard-go device.Peer that only exposes methods that are safe for
Tailscale to use internally.

It also removes HandshakeAttempts from PeerStatusLite that was just
added as it wasn't needed yet and is now accessible ala cart as needed
from the Peer type accessor.

None of this is used yet.

Updates #7617

Change-Id: I07be0c4e6679883e6eeddf8dbed7394c9e79c5f4
Signed-off-by: Brad Fitzpatrick <bradfitz@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
Percy Wegmann 50fb8b9123 tailfs: replace webdavfs with reverse proxies
Instead of modeling remote WebDAV servers as actual
webdav.FS instances, we now just proxy traffic to them.
This not only simplifies the code, but it also allows
WebDAV locking to work correctly by making sure locks are
handled by the servers that need to (i.e. the ones actually
serving the files).

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@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
10 months ago
Brad Fitzpatrick 61a1644c2a go.mod, all: move away from inet.af domain seized by Taliban
Updates inetaf/tcpproxy#39

Change-Id: I7fee276b116bd08397347c6c949011d76a2842cf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
10 months ago
Percy Wegmann 55b372a79f tailscaled: revert to using pointers for subcommands
As part of #10631, we stopped using function pointers for subcommands,
preventing us from registering platform-specific installSystemDaemon
and uninstallSystemDaemon subcommands.

Fixes #11099

Signed-off-by: Percy Wegmann <percy@tailscale.com>
10 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 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
James Tucker 24bac27632 util/rands: add Shuffle and Perm functions with on-stack RNG state
The new math/rand/v2 package includes an m-local global random number
generator that can not be reseeded by the user, which is suitable for
most uses without the RNG pools we have in a number of areas of the code
base.

The new API still does not have an allocation-free way of performing a
seeded operations, due to the long term compiler bug around interface
parameter escapes, and the Source interface.

This change introduces the two APIs that math/rand/v2 can not yet
replace efficiently: seeded Perm() and Shuffle() operations. This
implementation chooses to use the PCG random source from math/rand/v2,
as with sufficient compiler optimization, this source should boil down
to only two on-stack registers for random state under ideal conditions.

Updates #17243

Signed-off-by: James Tucker <james@tailscale.com>
10 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>
10 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>
10 months ago
James Tucker 7e3bcd297e go.mod,wgengine/netstack: bump gvisor
Updates #8043

Signed-off-by: James Tucker <james@tailscale.com>
11 months ago
James Tucker 457102d070 go.mod: bump most deps for start of cycle
Plan9 CI is disabled. 3p dependencies do not build for the target.
Contributor enthusiasm appears to have ceased again, and no usage has
been made.

Skipped gvisor, nfpm, and k8s.

Updates #5794
Updates #8043

Signed-off-by: James Tucker <james@tailscale.com>
11 months ago
Andrew Dunham 7a0392a8a3 wgengine/netstack: expose gVisor metrics through expvar
When tailscaled is run with "-debug 127.0.0.1:12345", these metrics are
available at:
    http://localhost:12345/debug/metrics

Updates #8210

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I19db6c445ac1f8344df2bc1066a3d9c9030606f8
11 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>
11 months ago
James Tucker 38a1cf748a control/controlclient,util/execqueue: extract execqueue into a package
This is a useful primitive for asynchronous execution of ordered work I
want to use in another change.

Updates tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
11 months ago
Joe Tsai c25968e1c5
all: make use of ctxkey everywhere (#10846)
Also perform minor cleanups on the ctxkey package itself.
Provide guidance on when to use ctxkey.Key[T] over ctxkey.New.
Also, allow for interface kinds because the value wrapping trick
also happens to fix edge cases with interfaces in Go.

Updates #cleanup

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
11 months ago
Andrew Lytvynov 4ec6a78551
go.mod: update golang-x-crypto fork (#10786)
Pick up a bunch of recent upstream commits.

Updates #8593

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
11 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>
11 months ago
Andrew Dunham 46bdbb3878 cmd/tailscaled, tsnet: don't return an interface containing a nil pointer
This tripped me up when I was testing something and wrote:

    if conn != nil {
        conn.Close()
    }

In netstack mode, when an error occurred we were getting a non-nil error
and a non-nil interface that contained a nil pointer. Instead, just
return a nil interface value.

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Id9ef3dd24529e0e8c53adc60ed914c31fbb10cc4
11 months ago
Aaron Klotz e32a064659 cmd/tailscaled: don't create a network monitor in the parent tailscaled on Windows
The service is only used as a watchdog and for piping logs from the child
process. We shouldn't be creating a network monitor in that case.

Fixes #10732

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
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>
12 months ago
Andrew Dunham d05a572db4 net/portmapper: handle multiple UPnP discovery responses
Instead of taking the first UPnP response we receive and using that to
create port mappings, store all received UPnP responses, sort and
deduplicate them, and then try all of them to obtain an external
address.

Updates #10602

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I783ccb1834834ee2a9ecbae2b16d801f2354302f
12 months ago
Sonia Appasamy c2fe123232 cmd/tailscaled: update ConfigureWebClient's UseSocketOnly value
Previously were always setting `UseSocketOnly` because we were
comparing `args.socketpath != ""`, but `args.socketpath` flag
always gets filled with `paths.DefaultTailscaledSocket()` when
not provided. Rather than comparing to the empty string, compare
to the default value to determine if `UseSocketOnly` should be
set.

Should fix issue with web client being unreachable for Mac App
Store variant of the mac build.

Updates #16054

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
12 months ago
Aaron Klotz 0f646937e9 clientupdate: remove TS_NOLAUNCH and GUI restart hacks from autoupdate
We've fixed the underlying issue in github.com/tailscale/corp/issues/13998.

Fixes #10513

Signed-off-by: Aaron Klotz <aaron@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>
1 year ago
Maisem Ali 57129205e6 cmd/tailscaled: make tun mode default on gokrazy
Now that we have nftable support this works fine and force
it on gokrazy since 25a8daf405.

Updates gokrazy/gokrazy#209

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Sonia Appasamy 6f7a1b51a8 ipn/ipnlocal: rename SetWebLocalClient to ConfigureWebClient
For consistency with the "WebClient" naming of the other functions
here. Also fixed a doc typo.

A #cleanup

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
1 year ago
Aaron Klotz 855f79fad7 cmd/tailscaled, util/winutil: changes to process and token APIs in winutil
This PR changes the internal getTokenInfo function to use generics.
I also removed our own implementations for obtaining a token's user
and primary group in favour of calling the ones now available in
x/sys/windows.

Furthermore, I added two new functions for working with tokens, logon
session IDs, and Terminal Services / RDP session IDs.

I modified our privilege enabling code to allow enabling of multiple
privileges via one single function call.

Finally, I added the ProcessImageName function and updated the code in
tailscaled_windows.go to use that instead of directly calling the
underlying API.

All of these changes will be utilized by subsequent PRs pertaining to
this issue.

Updates https://github.com/tailscale/corp/issues/13998

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
1 year ago
Andrew Lytvynov c3f1bd4c0a
clientupdate: fix auto-update on Windows over RDP (#10242)
`winutil.WTSGetActiveConsoleSessionId` only works for physical desktop
logins and does not return the session ID for RDP logins. We need to
`windows.WTSEnumerateSessions` and find the active session.

Fixes https://github.com/tailscale/corp/issues/15772

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
1 year ago