Commit Graph

961 Commits (ced9a0d413626f1e576eccbd639cea1e6bb6e451)

Author SHA1 Message Date
Anton Tolchanov 01847e0123 ipn/ipnlocal: discard node keys that have been rotated out
A non-signing node can be allowed to re-sign its new node keys following
key renewal/rotation (e.g. via `tailscale up --force-reauth`). To be
able to do this, node's TLK is written into WrappingPubkey field of the
initial SigDirect signature, signed by a signing node.

The intended use of this field implies that, for each WrappingPubkey, we
typically expect to have at most one active node with a signature
tracing back to that key. Multiple valid signatures referring to the
same WrappingPubkey can occur if a client's state has been cloned, but
it's something we explicitly discourage and don't support:
https://tailscale.com/s/clone

This change propagates rotation details (wrapping public key, a list
of previous node keys that have been rotated out) to netmap processing,
and adds tracking of obsolete node keys that, when found, will get
filtered out.

Updates tailscale/corp#19764

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
6 months ago
Anton Tolchanov 32120932a5 cmd/tailscale/cli: print node signature in `tailscale lock status`
- Add current node signature to `ipnstate.NetworkLockStatus`;
- Print current node signature in a human-friendly format as part
  of `tailscale lock status`.

Examples:

```
$ tailscale lock status
Tailnet lock is ENABLED.

This node is accessible under tailnet lock. Node signature:
SigKind: direct
Pubkey: [OTB3a]
KeyID: tlpub:44a0e23cd53a4b8acc02f6732813d8f5ba8b35d02d48bf94c9f1724ebe31c943
WrappingPubkey: tlpub:44a0e23cd53a4b8acc02f6732813d8f5ba8b35d02d48bf94c9f1724ebe31c943

This node's tailnet-lock key: tlpub:44a0e23cd53a4b8acc02f6732813d8f5ba8b35d02d48bf94c9f1724ebe31c943

Trusted signing keys:
	tlpub:44a0e23cd53a4b8acc02f6732813d8f5ba8b35d02d48bf94c9f1724ebe31c943	1	(self)
	tlpub:6fa21d242a202b290de85926ba3893a6861888679a73bc3a43f49539d67c9764	1	(pre-auth key kq3NzejWoS11KTM59)
```

For a node created via a signed auth key:

```
This node is accessible under tailnet lock. Node signature:
SigKind: rotation
Pubkey: [e3nAO]
Nested:
  SigKind: credential
  KeyID: tlpub:6fa21d242a202b290de85926ba3893a6861888679a73bc3a43f49539d67c9764
  WrappingPubkey: tlpub:3623b0412cab0029cb1918806435709b5947ae03554050f20caf66629f21220a
```

For a node that rotated its key a few times:

```
This node is accessible under tailnet lock. Node signature:
SigKind: rotation
Pubkey: [DOzL4]
Nested:
  SigKind: rotation
  Pubkey: [S/9yU]
  Nested:
    SigKind: rotation
    Pubkey: [9E9v4]
    Nested:
      SigKind: direct
      Pubkey: [3QHTJ]
      KeyID: tlpub:44a0e23cd53a4b8acc02f6732813d8f5ba8b35d02d48bf94c9f1724ebe31c943
      WrappingPubkey: tlpub:2faa280025d3aba0884615f710d8c50590b052c01a004c2b4c2c9434702ae9d0
```

Updates tailscale/corp#19764

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
6 months ago
Andrew Lytvynov 776a05223b
ipn/ipnlocal: support c2n updates with old systemd versions (#12296)
The `--wait` flag for `systemd-run` was added in systemd 232. While it
is quite old, it doesn't hurt to special-case them and skip the `--wait`
flag. The consequence is that we lose the update command output in logs,
but at least auto-updates will work.

Fixes #12136

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
6 months ago
Claire Wang f1d10c12ac
ipn/ipnlocal: allowed suggested exit nodes policy (#12240)
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
Andrew Lytvynov c9179bc261
various: disable stateful filtering by default (#12197)
After some analysis, stateful filtering is only necessary in tailnets
that use `autogroup:danger-all` in `src` in ACLs. And in those cases
users explicitly specify that hosts outside of the tailnet should be
able to reach their nodes. To fix local DNS breakage in containers, we
disable stateful filtering by default.

Updates #12108

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
6 months ago
Brad Fitzpatrick 964282d34f ipn,wgengine: remove vestigial Prefs.AllowSingleHosts
It was requested by the first customer 4-5 years ago and only used
for a brief moment of time. We later added netmap visibility trimming
which removes the need for this.

It's been hidden by the CLI for quite some time and never documented
anywhere else.

This keeps the CLI flag, though, out of caution. It just returns an
error if it's set to anything but true (its default).

Fixes #12058

Change-Id: I7514ba572e7b82519b04ed603ff9f3bdbaecfda7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 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
Claire Wang e070af7414
ipnlocal, magicsock: add more description to storing last suggested exit (#11998)
node related functions
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
6 months ago
Anton Tolchanov 6f4a1dc6bf ipn/ipnlocal: fix another read of keyExpired outside mutex
Updates #12039

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
6 months ago
Brad Fitzpatrick e968b0ecd7 cmd/tailscale,controlclient,ipnlocal: fix 'up', deflake tests more
The CLI's "up" is kinda chaotic and LocalBackend.Start is kinda
chaotic and they both need to be redone/deleted (respectively), but
this fixes some buggy behavior meanwhile. We were previously calling
StartLoginInteractive (to start the controlclient's RegisterRequest)
redundantly in some cases, causing test flakes depending on timing and
up's weird state machine.

We only need to call StartLoginInteractive in the client if Start itself
doesn't. But Start doesn't tell us that. So cheat a bit and a put the
information about whether there's a current NodeKey in the ipn.Status.
It used to be accessible over LocalAPI via GetPrefs as a private key but
we removed that for security. But a bool is fine.

So then only call StartLoginInteractive if that bool is false and don't
do it in the WatchIPNBus loop.

Fixes #12028
Updates #12042

Change-Id: I0923c3f704a9d6afd825a858eb9a63ca7c1df294
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 months ago
Brad Fitzpatrick e5ef35857f ipn/ipnlocal: fix read of keyExpired outside mutex
Fixes #12039

Change-Id: I28c8a282ce12619f17103e9535841f15394ce685
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>
6 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>
6 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>
6 months ago
Maisem Ali e1011f1387 ipn/ipnlocal: call SetNetInfoCallback from NewLocalBackend
Instead of calling it from Start everytime, call it from NewLocalBackend
once.

Updates #11649

Signed-off-by: Maisem Ali <maisem@tailscale.com>
6 months ago
Andrew Lytvynov 471731771c
ipn/ipnlocal: set default NoStatefulFiltering in ipn.NewPrefs (#12031)
This way the default gets populated on first start, when no existing
state exists to migrate. Also fix `ipn.PrefsFromBytes` to preserve empty
fields, rather than layering `NewPrefs` values on top.

Updates https://github.com/tailscale/corp/issues/19623

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
7 months ago
Maisem Ali e67069550b ipn/ipnlocal,net/tstun,wgengine: create and plumb jailed packet filter
This plumbs a packet filter for jailed nodes through to the
tstun.Wrapper; the filter for a jailed node is equivalent to a "shields
up" filter. Currently a no-op as there is no way for control to
tell the client whether a peer is jailed.

Updates tailscale/corp#19623

Co-authored-by: Andrew Dunham <andrew@du.nham.ca>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Change-Id: I5ccc5f00e197fde15dd567485b2a99d8254391ad
7 months ago
Andrew Lytvynov c28f5767bf
various: implement stateful firewalling on Linux (#12025)
Updates https://github.com/tailscale/corp/issues/19623


Change-Id: I7980e1fb736e234e66fa000d488066466c96ec85

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Co-authored-by: Andrew Dunham <andrew@du.nham.ca>
7 months ago
Brad Fitzpatrick aadb8d9d21 ipn/ipnlocal: don't send an empty BrowseToURL w/ WatchIPNBus NotifyInitialState
I noticed this while working on the following fix to #11962.

Updates #11962

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I4c5894d8899d1ae8c42f54ecfd4d05a4a7ac598c
7 months ago
Nick Khyl caa3d7594f ipn/ipnlocal, net/tsdial: plumb routes into tsdial and use them in UserDial
We'd like to use tsdial.Dialer.UserDial instead of SystemDial for DNS over TCP.
This is primarily necessary to properly dial internal DNS servers accessible
over Tailscale and subnet routes. However, to avoid issues when switching
between Wi-Fi and cellular, we need to ensure that we don't retain connections
to any external addresses on the old interface. Therefore, we need to determine
which dialer to use internally based on the configured routes.

This plumbs routes and localRoutes from router.Config to tsdial.Dialer,
and updates UserDial to use either the peer dialer or the system dialer,
depending on the network address and the configured routes.

Updates tailscale/corp#18725
Fixes #4529

Signed-off-by: Nick Khyl <nickk@tailscale.com>
7 months ago
Brad Fitzpatrick 7e0dd61e61 ipn/ipnlocal, tstest/integration: add panic to catch flaky test in the act
Updates #11962

Change-Id: Ifa24b82f9c76639bfd83278a7c2fe9cf42897bbb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick c3c18027c6 all: make more tests pass/skip in airplane mode
Updates tailscale/corp#19786

Change-Id: Iedc6730fe91c627b556bff5325bdbaf7bf79d8e6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Maisem Ali fd6ba43b97 types/views: remove duplicate SliceContainsFunc
We already have `(Slice[T]).ContainsFunc`.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
7 months ago
Percy Wegmann 817badf9ca ipn/ipnlocal: reuse transport across Taildrive remotes
This prevents us from opening a new connection on each HTTP
request.

Updates #11967

Signed-off-by: Percy Wegmann <percy@tailscale.com>
7 months ago
Claire Wang 35872e86d2
ipnlocal, magicsock: store last suggested exit node id in local backend (#11959)
Updates tailscale/corp#19681

Signed-off-by: Claire Wang <claire@tailscale.com>
7 months ago
Andrew Dunham e9505e5432 ipn/ipnlocal: plumb health.Tracker into profileManager constructor
Setting the field after-the-fact wasn't working because we could migrate
prefs on creation, which would set health status for auto updates.

Updates #11986

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I41d79ebd61d64829a3a9e70586ce56f62d24ccfd
7 months ago
Maisem Ali a49ed2e145 derp,ipn/ipnlocal: stop calling rand.Seed
It's deprecated and using it gets us the old slow behavior
according to https://go.dev/blog/randv2.

> Having eliminated repeatability of the global output stream, Go 1.20
> was also able to make the global generator scale better in programs
> that don’t call rand.Seed, replacing the Go 1 generator with a very
> cheap per-thread wyrand generator already used inside the Go
> runtime. This removed the global mutex and made the top-level
> functions scale much better. Programs that do call rand.Seed fall
> back to the mutex-protected Go 1 generator.

Updates #7123

Change-Id: Ia5452e66bd16b5457d4b1c290a59294545e13291
Signed-off-by: Maisem Ali <maisem@tailscale.com>
7 months ago
Brad Fitzpatrick 96712e10a7 health, ipn/ipnlocal: move more health warning code into health.Tracker
In prep for making health warnings rich objects with metadata rather
than a bunch of strings, start moving it all into the same place.

We'll still ultimately need the stringified form for the CLI and
LocalAPI for compatibility but we'll next convert all these warnings
into Warnables that have severity levels and such, and legacy
stringification will just be something each Warnable thing can do.

Updates #4136

Change-Id: I83e189435daae3664135ed53c98627c66e9e53da
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
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
7 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>
7 months ago
Andrew Lytvynov 7ba8f03936
ipn/ipnlocal: fix TestOnTailnetDefaultAutoUpdate on unsupported platforms (#11921)
Fixes #11894

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
7 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
Brad Fitzpatrick 4f73a26ea5 ipn/ipnlocal: skip TestOnTailnetDefaultAutoUpdate on macOS for now
While it's broken.

Updates #11894

Change-Id: I24698707ffe405471a14ab2683aea7e836531da8
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
Percy Wegmann 955ad12489 ipn/ipnlocal: only show Taildrive peers to which ACLs grant us access
This improves convenience and security.

* Convenience - no need to see nodes that can't share anything with you.
* Security - malicious nodes can't expose shares to peers that aren't
             allowed to access their shares.

Updates tailscale/corp#19432

Signed-off-by: Percy Wegmann <percy@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
Andrea Gottardo 1d3e77f373
util/syspolicy: add ReadStringArray interface (#11857)
Fixes tailscale/corp#19459

This PR adds the ability for users of the syspolicy handler to read string arrays from the MDM solution configured on the system.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
7 months ago
Andrew Lytvynov 06502b9048
ipn/ipnlocal: reset auto-updates if unsupported on profile load (#11838)
Prior to
1613b18f82 (diff-314ba0d799f70c8998940903efb541e511f352b39a9eeeae8d475c921d66c2ac),
nodes could set AutoUpdate.Apply=true on unsupported platforms via
`EditPrefs`. Specifically, this affects tailnets where default
auto-updates are on.

Fix up those invalid prefs on profile reload, as a migration.

Updates #11544

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
7 months ago