Commit Graph

83 Commits (main)

Author SHA1 Message Date
Kristoffer Dalby 0e0e53d3b3 util/usermetrics: make usermetrics non-global
this commit changes usermetrics to be non-global, this is a building
block for correct metrics if a go process runs multiple tsnets or
in tests.

Updates #13420
Updates tailscale/corp#22075

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
2 months ago
Nick Khyl 5bc9fafab8 ipn/ipnlocal: always send auth URL notifications when a user requests interactive login
This PR changes how LocalBackend handles interactive (initiated via StartLoginInteractive) and non-interactive (e.g., due to key expiration) logins,
and when it sends the authURL to the connected clients.

Specifically,
 - When a user initiates an interactive login by clicking Log In in the GUI, the LocalAPI calls StartLoginInteractive.
   If an authURL is available and hasn't expired, we immediately send it to all connected clients, suggesting them to open that URL in a browser.
   Otherwise, we send a login request to the control plane and set a flag indicating that an interactive login is in progress.
 - When LocalBackend receives an authURL from the control plane, we check if it differs from the previous one and whether an interactive login
   is in progress. If either condition is true, we notify all connected clients with the new authURL and reset the interactive login flag.

We reset the auth URL and flags upon a successful authentication, when a different user logs in and when switching Tailscale login profiles.

Finally, we remove the redundant dedup logic added to WatchNotifications in #12096 and revert the tests to their original state to ensure that
calling StartLoginInteractive always produces BrowseToURL notifications, either immediately or when the authURL is received from the control plane.

Fixes #13296

Signed-off-by: Nick Khyl <nickk@tailscale.com>
3 months ago
Nick Khyl b48c8db69c ipn/ipnlocal: set WantRunning upon an interactive login, but not during a seamless renewal or a profile switch
The LocalBackend's state machine starts in NoState and soon transitions to NeedsLogin if there's no auto-start profile,
with the profileManager starting with a new empty profile. Notably, entering the NeedsLogin state blocks engine updates.
We expect the user to transition out of this state by logging in interactively, and we set WantRunning to true when
controlclient enters the StateAuthenticated state.

While our intention is correct, and completing an interactive login should set WantRunning to true, our assumption
that logging into the current Tailscale profile is the only way to transition out of the NeedsLogin state is not accurate.
Another common transition path includes an explicit profile switch (via LocalBackend.SwitchProfile) or an implicit switch
when a Windows user connects to the backend. This results in a bug where WantRunning is set to true even when it was
previously set to false, and the user expressed no intention of changing it.

A similar issue occurs when switching from (sic) a Tailnet that has seamlessRenewalEnabled, regardless of the current state
of the LocalBackend's state machine, and also results in unexpectedly set WantRunning. While this behavior is generally
undesired, it is also incorrect that it depends on the control knobs of the Tailnet we're switching from rather than
the Tailnet we're switching to. However, this issue needs to be addressed separately.

This PR updates LocalBackend.SetControlClientStatus to only set WantRunning to true in response to an interactive login
as indicated by a non-empty authURL.

Fixes #6668
Fixes #11280
Updates #12756

Signed-off-by: Nick Khyl <nickk@tailscale.com>
3 months ago
Brad Fitzpatrick 1384c24e41 control/controlclient: delete unused Client.Login Oauth2Token field
Updates #12172 (then need to update other repos)

Change-Id: I439f65e0119b09e00da2ef5c7a4f002f93558578
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 8aa5c3534d ipn/ipnlocal: simplify authURL vs authURLSticky, remove interact field
The previous LocalBackend & CLI 'up' changes improved some stuff, but
might've been too aggressive in some edge cases.

This simplifies the authURL vs authURLSticky distinction and removes
the interact field, which seemed to just just be about duplicate URL
suppression in IPN bus, back from when the IPN bus was a single client
at a time. This moves that suppression to a different spot.

Fixes #12119
Updates #12028
Updates #12042

Change-Id: I1f8800b1e82ccc1c8a0d7abba559e7404ddf41e4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick 21509db121 ipn/ipnlocal, all: plumb health trackers in tests
I saw some panics in CI, like:

    2024-05-08T04:30:25.9553518Z ## WARNING: (non-fatal) nil health.Tracker (being strict in CI):
    2024-05-08T04:30:25.9554043Z goroutine 801 [running]:
    2024-05-08T04:30:25.9554489Z tailscale.com/health.(*Tracker).nil(0x0)
    2024-05-08T04:30:25.9555086Z 	tailscale.com/health/health.go:185 +0x70
    2024-05-08T04:30:25.9555688Z tailscale.com/health.(*Tracker).SetUDP4Unbound(0x0, 0x0)
    2024-05-08T04:30:25.9556373Z 	tailscale.com/health/health.go:532 +0x2f
    2024-05-08T04:30:25.9557296Z tailscale.com/wgengine/magicsock.(*Conn).bindSocket(0xc0003b4808, 0xc0003b4878, {0x1fbca53, 0x4}, 0x0)
    2024-05-08T04:30:25.9558301Z 	tailscale.com/wgengine/magicsock/magicsock.go:2481 +0x12c5
    2024-05-08T04:30:25.9559026Z tailscale.com/wgengine/magicsock.(*Conn).rebind(0xc0003b4808, 0x0)
    2024-05-08T04:30:25.9559874Z 	tailscale.com/wgengine/magicsock/magicsock.go:2510 +0x16f
    2024-05-08T04:30:25.9561038Z tailscale.com/wgengine/magicsock.NewConn({0xc000063c80, 0x0, 0xc000197930, 0xc000197950, 0xc000197960, {0x0, 0x0}, 0xc000197970, 0xc000198ee0, 0x0, ...})
    2024-05-08T04:30:25.9562402Z 	tailscale.com/wgengine/magicsock/magicsock.go:476 +0xd5f
    2024-05-08T04:30:25.9563779Z tailscale.com/wgengine.NewUserspaceEngine(0xc000063c80, {{0x22c8750, 0xc0001976b0}, 0x0, {0x22c3210, 0xc000063c80}, {0x22c31d8, 0x2d3c900}, 0x0, 0x0, ...})
    2024-05-08T04:30:25.9564982Z 	tailscale.com/wgengine/userspace.go:389 +0x159d
    2024-05-08T04:30:25.9565529Z tailscale.com/ipn/ipnlocal.newTestBackend(0xc000358b60)
    2024-05-08T04:30:25.9566086Z 	tailscale.com/ipn/ipnlocal/serve_test.go:675 +0x2a5
    2024-05-08T04:30:25.9566612Z ta

Updates #11874

Change-Id: I3432ed52d670743e532be4642f38dbd6e3763b1b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Maisem Ali 32bc596062 ipn/ipnlocal: acquire b.mu once in Start
We used to Lock, Unlock, Lock, Unlock quite a few
times in Start resulting in all sorts of weird race
conditions. Simplify it all and only Lock/Unlock once.

Updates #11649

Signed-off-by: Maisem Ali <maisem@tailscale.com>
7 months ago
Maisem Ali 9380e2dfc6 ipn/ipnlocal: use lockAndGetUnlock in Start
This removes one of the Lock,Unlock,Lock,Unlock at least in
the Start function. Still has 3 more of these.

Updates #11649

Signed-off-by: Maisem Ali <maisem@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
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 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
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
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
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
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>
1 year ago
Sonia Appasamy 258f16f84b ipn/ipnlocal: add tailnet MagicDNS name to ipn.LoginProfile
Start backfilling MagicDNS suffixes on LoginProfiles.

Updates #9286

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
1 year ago
Brad Fitzpatrick 0d991249e1 types/netmap: remove NetworkMap.{Addresses,MachineStatus}
And convert all callers over to the methods that check SelfNode.

Now we don't have multiple ways to express things in tests (setting
fields on SelfNode vs NetworkMap, sometimes inconsistently) and don't
have multiple ways to check those two fields (often only checking one
or the other).

Updates #9443

Change-Id: I2d7ba1cf6556142d219fae2be6f484f528756e3c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Maisem Ali d06a75dcd0 ipn/ipnlocal: fix deadlock in resetControlClientLocked
resetControlClientLocked is called while b.mu was held and
would call cc.Shutdown which would wait for the observer queue
to drain.
However, there may be active callbacks from cc already waiting for
b.mu resulting in a deadlock.

This makes it so that resetControlClientLocked does not call
Shutdown, and instead just returns the value.
It also makes it so that any status received from previous cc
are ignored.

Updates tailscale/corp#12827

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Maisem Ali 96277b63ff ipn/ipnlocal: rename LogoutSync to Logout
Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Maisem Ali 959362a1f4 ipn/ipnlocal,control/controlclient: make Logout more sync
We already removed the async API, make it more sync and remove
the FinishLogout state too.

This also makes the callback be synchronous again as the previous
attempt was trying to work around the logout callback resulting
in a client shutdown getting blocked forever.

Updates #3833

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Brad Fitzpatrick 04e1ce0034 control/controlclient: remove unused StartLogout
Updates #cleanup

Co-authored-by: Maisem Ali <maisem@tailscale.com>
Change-Id: I9d052fdbee787f1e8c872124e4bee61c7f04d142
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick f5bfdefa00 control/controlclient: de-pointer Status.PersistView, document more
Updates #cleanup
Updates #1909

Change-Id: I31d91e120e3b299508de2136021eab3b34131a44
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick 7053e19562 control/controlclient: delete Status.Log{in,out}Finished
They were entirely redundant and 1:1 with the status field
so this turns them into methods instead.

Updates #cleanup
Updates #1909

Change-Id: I7d939750749edf7dae4c97566bbeb99f2f75adbc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick 55bb7314f2 control/controlclient: replace a status func with Observer interface
For now the method has only one interface (the same as the func it's
replacing) but it will grow, eventually with the goal to remove the
controlclient.Status type for most purposes.

Updates #1909

Change-Id: I715c8bf95e3f5943055a94e76af98d988558a2f2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Maisem Ali 6aaf1d48df types/persist: drop duplicated Persist.LoginName
It was duplicated from Persist.UserProfile.LoginName, drop it.

Updates #7726

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Brad Fitzpatrick 6e967446e4 tsd: add package with System type to unify subsystem init, discovery
This is part of an effort to clean up tailscaled initialization between
tailscaled, tailscaled Windows service, tsnet, and the mac GUI.

Updates #8036

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Will Norris 57a008a1e1 all: pass log IDs as the proper type rather than strings
This change focuses on the backend log ID, which is the mostly commonly
used in the client.  Tests which don't seem to make use of the log ID
just use the zero value.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Maisem Ali 0fd2f71a1e ipn/ipnlocal: use presence of NodeID to identify logins
The profileManager was using the LoginName as a proxy to figure out if the profile
had logged in, however the LoginName is not present if the node was created with an
Auth Key that does not have an associated user.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 04b57a371e ipn/ipnlocal: drop not required StateKey parameter
This is #cleanup now that #7121 is merged.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Tom DNetto c4980f33f7 ipn,types/persist: add DisallowedTKAStateIDs, refactor as view type
Supercedes https://github.com/tailscale/tailscale/pull/6557, precursor to trying https://github.com/tailscale/tailscale/pull/6546 again

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Maisem Ali f1ad26f694 ipn/ipnlocal: strip NetworkLockKey from Prefs
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali dd50dcd067 ipn/ipnlocal: handle untagging nodes better
We would end up with duplicate profiles for the node as the UserID
would have chnaged. In order to correctly deduplicate profiles, we
need to look at both the UserID and the NodeID. A single machine can
only ever have 1 profile per NodeID and 1 profile per UserID.

Note: UserID of a Node can change when the node is tagged/untagged,
and the NodeID of a device can change when the node is deleted so we
need to check for both.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 513780f4f8 ipn/ipnlocal: move URL validation to LocalBackend
Updates tailscale/corp#7948

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali fe81ee62d7 ipn/ipnlocal: do controlclient.Shutdown in a different goroutine
We do not need to wait for it to complete. And we might have to
call Shutdown from callback from the controlclient which might
already be holding a lock that Shutdown requires.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 26d1fc867e ipn/ipnlocal: delete profile on logout
Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali f00a49667d control/controlclient: make Status.Persist a PersistView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 4d330bac14 ipn/ipnlocal: add support for multiple user profiles
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 6afe26575c ipn: make Notify.Prefs be a *ipn.PrefsView
It is currently a `ipn.PrefsView` which means when we do a JSON roundtrip,
we go from an invalid Prefs to a valid one.

This makes it a pointer, which fixes the JSON roundtrip.

This was introduced in 0957bc5af2.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Andrew Dunham e975cb6b05 ipn/ipnlocal: fix test flake when we log after a test completes
This switches from using an atomic.Bool to a mutex for reasons that are
described in the commit, and should address the flakes that we're still
seeing.

Fixes #3020

Change-Id: I4e39471c0eb95886db03020ea1ccf688c7564a11
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2 years ago
Tom DNetto d98305c537 cmd,ipn/ipnlocal,tailcfg: implement TKA disablement
* Plumb disablement values through some of the internals of TKA enablement.
 * Transmit the node's TKA hash at the end of sync so the control plane understands each node's head.
 * Implement /machine/tka/disable RPC to actuate disablement on the control plane.

There is a partner PR for the control server I'll send shortly.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Maisem Ali 9f39c3b10f ipn/ipnlocal: make EditPrefs strip private keys before returning
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 0957bc5af2 ipn/ipnlocal: use ipn.PrefsView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick 4950fe60bd syncs, all: move to using Go's new atomic types instead of ours
Fixes #5185

Change-Id: I850dd532559af78c3895e2924f8237ccc328449d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 87a4c75fd4 control/controlclient, ipn/ipnlocal: remove Client.SetExpirySooner, fix race
Client.SetExpirySooner isn't part of the state machine. Remove it from
the Client interface.

And fix a use of LocalBackend.cc without acquiring the lock that
guards that field.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick ef0d740270 control/controlclient: remove Client.SetStatusFunc
It can't change at runtime. Make it an option.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 70a2797064 control/controlclient, ipn/ipnlocal: remove some Client methods
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick a1e429f7c3 control/controlclient, types/netmap: remove unused LocalPort field
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 6fecc16c3b ipn/ipnlocal: do not process old status messages received out of order
When `setWgengineStatus` is invoked concurrently from multiple
goroutines, it is possible that the call invoked with a newer status is
processed before a call with an older status. e.g. a status that has
endpoints might be followed by a status without endpoints. This causes
unnecessary work in the engine and can result in packet loss.

This patch adds an `AsOf time.Time` field to the status to specifiy when the
status was calculated, which later allows `setWgengineStatus` to ignore
any status messages it receives that are older than the one it has
already processed.

Updates tailscale/corp#2579

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Josh Bleecher Snyder 0868329936 all: use any instead of interface{}
My favorite part of generics.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago