Commit Graph

617 Commits (7c7f37342fa710bbf223aa29c5631f2d182fa59d)

Author SHA1 Message Date
David Anderson c17250cee2 ipn/ipnstate: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 418adae379 various: use NodePublic.AsNodeKey() instead of tailcfg.NodeKeyFromNodePublic()
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson eeb97fd89f various: remove remaining uses of key.NewPrivate.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 429632d32c ipn/ipnlocal: treat js/wasm interative logins as ephemeral for now
At least until js/wasm starts using browser LocalStorage or something.
But for the foreseeable future, any login from a browser should
be considered ephemeral as the tab can close at any time and lose
the wireguard key, never to be seen again.

Updates #3157

Change-Id: I6c410d86dc7f9f233c3edd623313d9dee2085aac
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson c1d009b9e9 ipn/ipnstate: use key.NodePublic instead of the generic key.Public.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 96ad68c5d6 ipn: remove mention of wgkey in comment.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 0c546a28ba types/persist: use new node key type.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 22dbaa0894 ipn/ipnserver: add New, Server.Server
Change-Id: I1dc85a5131b9a628d7fc780fde7103492cd3f1f8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d381bc2b6c ipn/ipnserver: move the unserved connection logic to a Listener
So future refactors can only deal with a net.Listener and
be unconcerned with their caller's (Windows-specific) struggles.

Change-Id: I0af588b9a769ab65c59b0bd21f8a0c99abfa1784
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c23a378f63 ipn/ipnserver: start refactoring ipnserver.Run into smaller pieces
I'll keep ipnserver.Run for compatibility, but it'll be a wrapper
around several smaller pieces. (more testable too)

For now, start untangling some things in preparation.

Plan is to have to have a constructor for the just-exported
ipnserver.Server type that takes a LocalBackend and can
accept (in a new method) on a provided listener.

Change-Id: Ide73aadaac1a82605c97a2af1321d0d8f60b2a8c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 869999955d ipn/ipnserver: export server type as Server
It's all opaque, there's no constructor, and no exported
methods, so it's useless at this point, but this is one
small refactoring step.

Change-Id: Id961e8880cf0c84f1a0a989eefff48ecb3735add
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 81cabf48ec control/controlclient,tailcfg: propagate registration errors to the frontend
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Aaron Klotz 6425f497b1 ipn/ipnserver paths: add paths.LegacyStateFilePath
Moving this information into a centralized place so that it is accessible to
code in subsequent commits.

Updates #3011

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
3 years ago
Joe Tsai 9af27ba829 cmd/cloner: mangle "go:generate" in cloner.go
The "go generate" command blindly looks for "//go:generate" anywhere
in the file regardless of whether it is truly a comment.
Prevent this false positive in cloner.go by mangling the string
to look less like "//go:generate".

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
3 years ago
Maisem Ali c6d3f622e9 ipn/ipnlocal: use netaddr.IPSetBuilder when constructing list of interface IPPrefixes.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick ddf3394b40 ipn/ipnlocal: don't try to block localhost traffic when using exit nodes
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 751c42c097 ipn: fix formatting of ExitNodeIP in MaskedPrefs
%#v on a netaddr.IP showed the netaddr.IP innards.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
nicksherron f01ff18b6f all: fix spelling mistakes
Signed-off-by: nicksherron <nsherron90@gmail.com>
3 years ago
Maxime VISONNEAU 4528f448d6 ipn/store/aws, cmd/tailscaled: add AWS SSM ipn.StateStore implementation
From https://github.com/tailscale/tailscale/pull/1919 with
edits by bradfitz@.

This change introduces a new storage provider for the state file. It
allows users to leverage AWS SSM parameter store natively within
tailscaled, like:

    $ tailscaled --state=arn:aws:ssm:eu-west-1:123456789:parameter/foo

Known limitations:
- it is not currently possible to specific a custom KMS key ID

RELNOTE=tailscaled on Linux supports using AWS SSM for state

Edits-By: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Maxime VISONNEAU <maxime.visonneau@gmail.com>
3 years ago
Brad Fitzpatrick cb4a2c00d1 ipn: remove unused Prefs.OSVersion and Prefs.DeviceModel
iOS and Android no longer use these. They both now (as of today)
use the hostinfo.SetFoo setters instead.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 67e5fabdbd hostinfo, ipn/ipnlocal: add SetPackage, remove ipnlocal hacks
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 81269fad28 hostinfo: add SetOSVersion like SetDeviceModel, deprecate ipn.Prefs way
Turns out the iOS client has been only sending the OS version it first
started at. This whole hostinfo-via-prefs mechanism was never a good idea.
Start removing it.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 22a1a5d7cf ipn/ipnlocal: for IPv6-only nodes, publish IPv6 MagicDNS records of peers
See https://github.com/tailscale/tailscale/issues/2970#issuecomment-931885268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 6d43cbc325 ipn/ipnlocal: make sure mobile clients don't use the old control server URL
The new frontends are better for battery.

Updates #2442
Updates tailscale/corp#2750

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 173bbaa1a1 all: disable TCP keep-alives on iOS/Android
Updates #2442
Updates tailscale/corp#2750

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3b3994f0db ipn{,/localapi,ipnlocal}: infer cert dir from state file location
This fixes "tailscale cert" on Synology where the var directory is
typically like /volume2/@appdata/Tailscale, or any other tailscaled
user who specifies a non-standard state file location.

This is a interim fix on the way to #2932.

Fixes #2927
Updates #2932

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3a72ebb109 ipn: test TestFileStore in a fresh subdirectory
Fixes #2923

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Aaron Klotz 21e9f98fc1 ipn, paths: unconditionally attempt to set state dir perms, but only if the state dir is ours
We unconditionally set appropriate perms on the statefile dir.

We look at the basename of the statefile dir, and if it is "tailscale", then
we set perms as appropriate.

Fixes #2925
Updates #2856

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
3 years ago
Brad Fitzpatrick efb84ca60d ipn/localapi, cmd/tailscale: add CPU & memory profile support, debug command
This was already possible on Linux if you ran tailscaled with --debug
(which runs net/http/pprof), but it requires the user have the Go
toolchain around.

Also, it wasn't possible on macOS, as there's no way to run the IPNExtension
with a debug server (it doesn't run tailscaled).

And on Windows it's super tedious: beyond what users want to do or
what we want to explain.

Instead, put it in "tailscale debug" so it works and works the same on
all platforms. Then we can ask users to run it when we're debugging something
and they can email us the output files.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 1eabb5b2d9 ipn: don't log IPN messages that may contain an authkey.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Aaron Klotz 9ebb5d4205 ipn, paths: ensure that the state directory for Windows has the correct perms
ProgramData has a permissive ACL. For us to safely store machine-wide
state information, we must set a more restrictive ACL on our state directory.
We set the ACL so that only talescaled's user (ie, LocalSystem) and the
Administrators group may access our directory.

We must include Administrators to ensure that logs continue to be easily
accessible; omitting that group would force users to use special tools to
log in interactively as LocalSystem, which is not ideal.

(Note that the ACL we apply matches the ACL that was used for LocalSystem's
AppData\Local).

There are two cases where we need to reset perms: One is during migration
from the old location to the new. The second case is for clean installations
where we are creating the file store for the first time.

Updates #2856

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
3 years ago
Brad Fitzpatrick 7d8227e7a6 logpolicy: don't use C:\ProgramData use for tailscale-ipn GUI's log dir
tailscale-ipn.exe (the GUI) shouldn't use C:\ProgramData.

Also, migrate the earlier misnamed wg32/wg64 conf files if they're present.
(That was stopped in 2db877caa3, but the
files exist from fresh 1.14 installs)

Updates #2856

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 280c84e46a ipn/ipnserver, paths, logpolicy: move Window config files out of %LocalAppData%
C:\WINDOWS\system32\config\systemprofile\AppData\Local\
is frequently cleared for almost any reason: Windows updates,
System Restore, even various System Cleaner utilities.

The server-state.conf file in AppData\Local could be deleted
at any time, which would break login until the node is removed
from the Admin Panel allowing it to create a new key.

Carefully copy any AppData state to ProgramData at startup.
If copying the state fails, continue to use AppData so at
least there will be connectivity. If there is no state,
use ProgramData.

We also migrate the log.conf file. Very old versions of
Tailscale named the EXE tailscale-ipn, so the log conf was
tailscale-ipn.log.conf and more recent versions preserved
this filename and cmdName in logs. In this migration we
always update the filename to
c:\ProgramData\Tailscale\tailscaled.log.conf

Updates https://github.com/tailscale/tailscale/issues/2856

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick aae622314e tailcfg, health: add way for control plane to add problems to health check
So if the control plane knows that something's broken about the node, it can
include problem(s) in MapResponse and "tailscale status" will show it.
(and GUIs in the future, as it's in ipnstate.Status/JSON)

This also bumps the MapRequest.Version, though it's not strictly
required. Doesn't hurt.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder d5ab18b2e6 cmd/cloner: add Clone context to regen struct assignments
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 07c09f470d ipn/ipnlocal: do not shut down the backend halfway through TestStateMachine
LocalBackend.Shutdown's docs say:

> The backend can no longer be used after Shutdown returns.

Nevertheless, TestStateMachine blithely calls Shutdown, talks some smack,
and continues on, expecting things to work. Other uses of Shutdown
in the codebase are as intended.

Things mostly kinda work anyway, except that the wgengine.Engine has been
shut down, so calls to Reconfig fail. Those get logged:

> local.go:603: wgengine status error: engine closing; no status

but otherwise ignored.

However, the Reconfig failure caused one fewer call to pause/unpause
than normal. Now the assertCalls lines match the equivalent ones
earlier in the test.

I don't see an obvious correct replacement for Shutdown in the context
of this test; I'm not sure entirely what it is trying to accomplish.
It is possible that many of the tests remaining after the prior call
to Shutdown are now extraneous. They don't harm anything, though,
so err on the side of safety and leave them for now.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder f834a4ade5 ipn/ipnlocal: fix minor typo in comment
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 221cc5f8f2 ipn/ipnlocal: reduce line noise in tests
Use helpers and variadic functions to make the call sites
a lot easier to read, since they occur a lot.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 45d3174c0d ipn/ipnlocal: add LocalBackend.broadcastStatusChanged
To reduce repetition.

Also, document why we acquire the lock.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder b7ede14396 Revert "ipn/ipnlocal: remove locks around sync.Cond.Broadcast call"
Reason for revert: Causes ipnlocal tests to deadlock intermittently.

This reverts commit 1b15349e01.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3ea8cf9c62 ipn/ipnlocal: use quicktest.IsNotNil in tests
This didn't exist when the test was written.
Now it does (frankban/quicktest#94); use it.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 1b15349e01 ipn/ipnlocal: remove locks around sync.Cond.Broadcast call
They are unnecessary.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3b58c118dd ipn/ipnlocal: inline LocalBackend.getEngineStatus
For uniformity.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 0f4c0e558b ipn/ipnlocal: use a switch statement instead of an else-if chain
For clarity.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 7421ba91ec ipn/ipnlocal: only call UpdateEndpoints when the endpoints change
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder b681edc572 ipn/ipnlocal: add failing test
Concurrent calls to LocalBackend.setWgengineStatus
could result in some of the status updates being dropped.
This was exacerbated by 92077ae78c,
which increases the probability of concurrent status updates,
causing test failures (tailscale/corp#2579).

It's going to take a bit of work to fix this test.
The ipnlocal state machine is difficult to reason about,
particularly in the face of concurrency.
We could fix the test trivially by throwing a new mutex around
setWgengineStatus to serialize calls to it,
but I'd like to at least try to do better than cosmetics.

In the meantime, commit the test.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 7693d36aed all: close fake userspace engines when tests complete
We were leaking FDs.
In a few places, switch from defer to t.Cleanup.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 4bbf5a8636 cmd/cloner: reduce diff noise when changing command
Spelling out the command to run for every type
means that changing the command makes for a large, repetitive diff.
Stop doing that.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 640134421e all: update tests to use tstest.MemLogger
And give MemLogger a mutex, as one caller had, which does match the logf
contract better.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 48933b0382 ipn/ipnlocal: flesh out the dnsConfigForNetmap tests
Follow-up to #2805 and #2806

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7fe6ecf165 ipn/ipnlocal: add MagicDNS records for IPv6-only nodes
Updates #2268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 90b0cd0c51 ipn/ipnlocal: start adding some netmap to DNS config tests
Follow-up to #2805

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 30a614f9b9 ipn/ipnlocal: return early, outdent a bunch in dnsConfigForNetmap
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2bb0eb5f7e ipn/ipnlocal: pull out dns.Config construction to its own func
In prep for other bug fixes & tests. It's hard to test when it was
intermingled into LocalBackend.authReconfig.

Now it's a pure function.

And rename variable 'uc' (user config?) to the since idiomatic
'prefs'.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 9502b515f1 net/dns: replace resolver IPs with type for DoH
We currently plumb full URLs for DNS resolvers from the control server
down to the client. But when we pass the values into the net/dns
package, we throw away any URL that isn't a bare IP. This commit
continues the plumbing, and gets the URL all the way to the built in
forwarder. (It stops before plumbing URLs into the OS configurations
that can handle them.)

For #2596

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 7bfd4f521d cmd/tailscale: fix "tailscale ip $self-host-hostname"
And in the process, fix the related confusing error messages from
pinging your own IP or hostname.

Fixes #2803

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Dave Anderson 980acc38ba
types/key: add a special key with custom serialization for control private keys (#2792)
* Revert "Revert "types/key: add MachinePrivate and MachinePublic.""

This reverts commit 61c3b98a24.

Signed-off-by: David Anderson <danderson@tailscale.com>

* types/key: add ControlPrivate, with custom serialization.

ControlPrivate is just a MachinePrivate that serializes differently
in JSON, to be compatible with how the Tailscale control plane
historically serialized its private key.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 61c3b98a24 Revert "types/key: add MachinePrivate and MachinePublic."
Broke the tailscale control plane due to surprise different serialization.

This reverts commit 4fdb88efe1.
3 years ago
David Anderson 4fdb88efe1 types/key: add MachinePrivate and MachinePublic.
Plumb throughout the codebase as a replacement for the mixed use of
tailcfg.MachineKey and wgkey.Private/Public.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 5bacbf3744 wgengine/magicsock, health, ipn/ipnstate: track DERP-advertised health
And add health check errors to ipnstate.Status (tailscale status --json).

Updates #2746
Updates #2775

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 0842e2f45b ipn/store: add ability to store data as k8s secrets.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 88bd796622 tailcfg,ipn/ipnlocal: support DNSConfig.Routes with empty values [mapver 23]
Fixes #2706
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Matt Drollette c1aa5a2e33 ipn/ipnlocal: update requested tags in host info
Fixes #2641

Signed-off-by: Matt Drollette <matt@drollette.com>
3 years ago
Brad Fitzpatrick 47045265b9 hostinfo: add SetDeviceModel setter, move remaining code from controlclient
Updates tailscale/corp#1959

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick faa891c1f2 client/tailscale,ipn/localapi: warn on tailscale/tailscaled version skew
Fixes #1905

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 56db3e2548 ipn/localapi: refresh ACME certs in background two weeks in advance
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Simeng He e199e407d2 tailcfg: add IP and Types field to PingRequest
Signed-off-by: Simeng He <simeng@tailscale.com>
3 years ago
Brad Fitzpatrick 57b794c338 ipn/localapi: move cert fetching code to localapi, cache, add cert subcommand
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder a666b546fb ipn/ipnlocal: log number of packet filters rather than entire filter
The number of packet filters can grow very large,
so this log entry can be very large.
We can get the packet filter server-side,
so reduce verbosity here to just the number of filters present.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder a24cee0d67 all: simplify ts_macext build tags
Now that we have the easier-to-parse go:build build tags,
it is straightforward to simplify them. Yay.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
David Crawshaw 360223fccb types/dnstype: introduce new package for Resolver
So the type can be used in net/dns without introducing a tailcfg
dependency.

For #2596

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Josh Bleecher Snyder a5da4ed981 all: gofmt with Go 1.17
This adds "//go:build" lines and tidies up existing "// +build" lines.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick f3c96df162 ipn/ipnstate: move tailscale status "active" determination to tailscaled
Fixes #2579

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 0554b64452 ipnlocal: allow access to guest VMs/containers while using an exit node
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Josh Bleecher Snyder 8a3d52e882 wgengine/magicsock: use mono.Time
magicsock makes multiple calls to Now per packet.
Move to mono.Now. Changing some of the calls to
use package mono has a cascading effect,
causing non-per-packet call sites to also switch.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 690ade4ee1 ipn/ipnlocal: add URL to IP forwarding error message
Updates #606

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7428ecfebd ipn/ipnlocal: populate Hostinfo.Package on Android
Fixes tailscale/corp#2266

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Joe Tsai 9a0c8bdd20 util/deephash: make hash type opaque
The fact that Hash returns a [sha256.Size]byte leaks details about
the underlying hash implementation. This could very well be any other
hashing algorithm with a possible different block size.

Abstract this implementation detail away by declaring an opaque type
that is comparable. While we are changing the signature of UpdateHash,
rename it to just Update to reduce stutter (e.g., deephash.Update).

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
3 years ago
Brad Fitzpatrick b6d70203d3 ipn/ipnlocal: fix 'tailscale up' on Windows without GUI
With this, I can now:

* install Tailscale
* stop the GUI
* net stop Tailscale
* net start Tailscale
* tailscale up --unattended

(where the middle three steps simulate what would happen on a Windows
Server Core machine without a GUI)

Fixes #2137

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Avery Pennarun 14135dd935 ipn/ipnlocal: make state_test catch the bug fixed by #2445
Updates #2434

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
3 years ago
Brad Fitzpatrick 6eecf3c9d1 ipn/ipnlocal: stay out of map poll when down
Fixes #2434

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 98ad7f279c ipn/localapi: fix inability to receive taildrop files w/ escaped names
The localapi was double-unescaping: once by net/http populating
the URL, and once by ourselves later. We need to start with the raw
escaped URL if we're doing it ourselves.

Started to write a test but it got invasive. Will have to add those
tests later in a commit that's not being cherry-picked to a release
branch.

Fixes #2288

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 01e159b610 ipn/ipnlocal: save prefs to disk on UpdatePrefs
Regression from 6d10655dc3, which added
UpdatePrefs but didn't write it out to disk.

I'd planned on adding tests to state_test.go which is why I'd earlier
added 46896a9311 to prepare for making
such persistence tests easier to write, but turns out state_test.go
didn't even test UpdatePrefs, so I'm staying out of there.
Instead, this is tested using integration tests.

Fixes #2321

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 87481282eb ipn: another controlplane synonym
This one doesn't bother me so much, as long term we want a synonym here.

Fixes #2384
Fixes #2386

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 46896a9311 ipn/ipnlocal: start to test whether all state transitions save prefs to disk
Updates #2321

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 22cac33fe7 ipn: remove an unnecessary lazy map init on read path
It's okay to read from a nil map.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 805d5d3cde ipnlocal: move log line inside if statement
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 700badd8f8 util/deephash: move internal/deephash to util/deephash
No code changes. Just a minor package doc addition about lack of API
stability.
3 years ago
Josh Bleecher Snyder f11a8928a6 ipn/ipnlocal: fix data race
We can't access b.netMap without holding b.mu.
We already grabbed it earlier in the function with the lock held.

Introduced in Nov 2020 in 7ea809897d.
Discovered during stress testing.
Apparently it's a pretty rare?

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Maisem Ali ec52760a3d wgengine/router_windows: support toggling local lan access when using
exit nodes.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
julianknodt 506c2fe8e2 cmd/tailscale: make netcheck use active DERP map, delete static copy
After allowing for custom DERP maps, it's convenient to be able to see their latency in
netcheck. This adds a query to the local tailscaled for the current DERPMap.

Updates #1264

Signed-off-by: julianknodt <julianknodt@gmail.com>
3 years ago
David Crawshaw d6f4b5f5cb ipn, etc: use controlplane.tailscale.com
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 45e64f2e1a net/dns{,/resolver}: refactor DNS forwarder, send out of right link on macOS/iOS
Fixes #2224
Fixes tailscale/corp#2045

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 4ce15505cb wgengine: randomize client port if netmap says to
For testing out #2187

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
David Crawshaw 297b3d6fa4 staticcheck.conf: turn off noisy lint errors
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 0debb99f08 tailcfg: add DNSConfig.ExtraRecords
Updates #1748
Updates #1235
Updates #2055

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Maisem Ali f482321f67 ipn/ipnlocal: support exit node local access switching on darwin.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
4 years ago
Brad Fitzpatrick cd282ec00f tailcfg: add DNSConfig.CertDomains
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick cc6ab0a70f ipn/ipnlocal: retry peerapi listen on Android, like we do on Windows
Updates #1960

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Maisem Ali f944614c5c cmd/tailscale/web: add support for QNAP
Signed-off-by: Maisem Ali <maisem@tailscale.com>
4 years ago
Brad Fitzpatrick e29cec759a ipn/{ipnlocal,localapi}, control/controlclient: add SetDNS localapi
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ecfb2639cc ipn/ipnlocal: avoid initPeerAPIListener crash on certain concurrent actions
We were crashing on in initPeerAPIListener when called from
authReconfig when b.netMap is nil. But authReconfig already returns
before the call to initPeerAPIListener when b.netMap is nil, but it
releases the b.mu mutex before calling initPeerAPIListener which
reacquires it and assumes it's still nil.

The only thing that can be setting it to nil is setNetMapLocked, which
is called by ResetForClientDisconnect, Logout/logout, or Start, all of
which can happen during an authReconfig.

So be more defensive.

Fixes #1996

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 713c5c9ab1 net/{interfaces,netns}: change which build tag means mac/ios Network/System Extension
We used to use "redo" for that, but it was pretty vague.

Also, fix the build tags broken in interfaces_default_route_test.go from
a9745a0b68, moving those Linux-specific
tests to interfaces_linux_test.go.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick a321c24667 go.mod: update netaddr
Involves minor IPSetBuilder.Set API change.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Avery Pennarun eaa6507cc9 ipnlocal: in Start() fast path, don't forget to send Prefs.
The resulting empty Prefs had AllowSingleHosts=false and
Routeall=false, so that on iOS if you did these steps:
- Login and leave running
- Terminate the frontend
- Restart the frontend (fast path restart, missing prefs)
- Set WantRunning=false
- Set WantRunning=true
...then you would have Tailscale running, but with no routes. You would
also accidentally disable the ExitNodeID/IP prefs (symptom: the current
exit node setting didn't appear in the UI), but since nothing
else worked either, you probably didn't notice.

The fix was easy enough. It turns out we already knew about the
problem, so this also fixes one of the BUG entries in state_test.

Fixes: #1918 (BUG-1) and some as-yet-unreported bugs with exit nodes.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun 8a7d35594d ipnlocal: don't assume NeedsLogin immediately after StartLogout().
Previously, there was no server round trip required to log out, so when
you asked ipnlocal to Logout(), it could clear the netmap immediately
and switch to NeedsLogin state.

In v1.8, we added a true Logout operation. ipn.Logout() would trigger
an async cc.StartLogout() and *also* immediately switch to NeedsLogin.
Unfortunately, some frontends would see NeedsLogin and immediately
trigger a new StartInteractiveLogin() operation, before the
controlclient auth state machine actually acted on the Logout command,
thus accidentally invalidating the entire logout operation, retaining
the netmap, and violating the user's expectations.

Instead, add a new LogoutFinished signal from controlclient
(paralleling LoginFinished) and, upon starting a logout, don't update
the ipn state machine until it's received.

Updates: #1918 (BUG-2)
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Brad Fitzpatrick a04801e037 ipn/ipnlocal: ignore NetfilterMode pref on Synology
On clean installs we didn't set use iptables, but during upgrades it
looks like we could use old prefs that directed us to go into the iptables
paths that might fail on Synology.

Updates #1995
Fixes tailscale/tailscale-synology#57 (I think)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Elias Naur adfe8cf41d paths: generalize IOSSharedDir to cover Android
Also fix an error message while here.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
4 years ago
David Anderson df350e2069 ipn/ipnlocal: initialize DNS config maps unconditionally.
Fixes #1963.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Crawshaw 293a2b11cd ipn: allow b to be nil in NewBackendServer
A couple of code paths in ipnserver use a NewBackendServer with a nil
backend just to call the callback with an encapsulated error message.
This covers a panic case seen in logs.

For #1920

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Anderson e2dcf63420 net/dns: replace AuthoritativeSuffixes with nil Route entries.
This leads to a cleaner separation of intent vs. implementation
(Routes is now the only place specifying who handles DNS requests),
and allows for cleaner expression of a configuration that creates
MagicDNS records without serving them to the OS.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 6690f86ef4 net/dns: always offer MagicDNS records at 100.100.100.100.
Fixes #1886.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Josh Bleecher Snyder 25df067dd0 all: adapt to opaque netaddr types
This commit is a mishmash of automated edits using gofmt:

gofmt -r 'netaddr.IPPort{IP: a, Port: b} -> netaddr.IPPortFrom(a, b)' -w .
gofmt -r 'netaddr.IPPrefix{IP: a, Port: b} -> netaddr.IPPrefixFrom(a, b)' -w .

gofmt -r 'a.IP.Is4 -> a.IP().Is4' -w .
gofmt -r 'a.IP.As16 -> a.IP().As16' -w .
gofmt -r 'a.IP.Is6 -> a.IP().Is6' -w .
gofmt -r 'a.IP.As4 -> a.IP().As4' -w .
gofmt -r 'a.IP.String -> a.IP().String' -w .

And regexps:

\w*(.*)\.Port = (.*)  ->  $1 = $1.WithPort($2)
\w*(.*)\.IP = (.*)  ->  $1 = $1.WithIP($2)

And lots of manual fixups.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Avery Pennarun 6fd4e8d244 ipnlocal: fix switching users while logged in + Stopped.
This code path is very tricky since it was originally designed for the
"re-authenticate to refresh my keys" use case, which didn't want to
lose the original session even if the refresh cycle failed. This is why
it acts differently from the Logout(); Login(); case.

Maybe that's too fancy, considering that it probably never quite worked
at all, for switching between users without logging out first. But it
works now.

This was more invasive than I hoped, but the necessary fixes actually
removed several other suspicious BUG: lines from state_test.go, so I'm
pretty confident this is a significant net improvement.

Fixes tailscale/corp#1756.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun 285d0e3b4d ipnlocal: fix deadlock in RequestEngineStatusAndWait() error path.
If the engine was shutting down from a previous session
(e.closing=true), it would return an error code when trying to get
status. In that case, ipnlocal would never unblock any callers that
were waiting on the status.

Not sure if this ever happened in real life, but I accidentally
triggered it while writing a test.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Brad Fitzpatrick 36a26e6a71 internal/deephash: rename from deepprint
Yes, it printed, but that was an implementation detail for hashing.

And coming optimization will make it print even less.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 366b3d3f62 ipn{,/ipnserver}: delay JSON marshaling of ipn.Notifies
If nobody is connected to the IPN bus, don't burn CPU & waste
allocations (causing more GC) by encoding netmaps for nobody.

This will notably help hello.ipn.dev.

Updates tailscale/corp#1773

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick e72ed3fcc2 ipn/{ipnlocal,ipnstate}: add PeerStatus.ID stable ID to status --json output
Needed for the "up checker" to map back from exit node stable IDs (the
ipn.Prefs.ExitNodeID) back to an IP address in error messages.

But also previously requested so people can use it to then make API
calls. The upcoming "tailscale admin" subcommand will probably need it
too.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Josh Bleecher Snyder 78d4c561b5 types/logger: add key grinder stats lines to rate-limiting exemption list
Updates #1749

Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Avery Pennarun 6d10655dc3 ipnlocal: accept a new opts.UpdatePrefs field.
This is needed because the original opts.Prefs field was at some point
subverted for use in frontend->backend state migration for backward
compatibility on some platforms. We still need that feature, but we
also need the feature of providing the full set of prefs from
`tailscale up`, *not* including overwriting the prefs.Persist keys, so
we can't use the original field from `tailscale up`.

`tailscale up` had attempted to compensate for that by doing SetPrefs()
before Start(), but that violates the ipn.Backend contract, which says
you should call Start() before anything else (that's why it's called
Start()). As a result, doing SetPrefs({ControlURL=...,
WantRunning=true}) would cause a connection to the *previous* control
server (because WantRunning=true), and then connect to the *new*
control server only after running Start().

This problem may have been avoided before, but only by pure luck.

It turned out to be relatively harmless since the connection to the old
control server was immediately closed and replaced anyway, but it
created a race condition that could have caused spurious notifications
or rejected keys if the server responded quickly.

As already covered by existing TODOs, a better fix would be to have
Start() get out of the business of state migration altogether. But
we're approaching a release so I want to make the minimum possible fix.

Fixes #1840.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Brad Fitzpatrick 4066c606df ipn/ipnlocal: update peerapi logging of received PUTs
Clarify direction and add duration.

(per chat with Avery)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick f5bccc0746 ipn/ipnlocal: redact more errors
Updates tailscale/corp#1636

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Josh Bleecher Snyder 96ef8d34ef ipn/ipnlocal: switch from testify to quicktest
Per discussion, we want to have only one test assertion library,
and we want to start by exploring quicktest.

This was a mostly mechanical translation.
I think we could make this nicer by defining a few helper
closures at the beginning of the test. Later.

Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
4 years ago
Brad Fitzpatrick 544d8d0ab8 ipn/ipnlocal: remove NewLocalBackendWithClientGen
This removes the NewLocalBackendWithClientGen constructor added in
b4d04a065f and instead adds
LocalBackend.SetControlClientGetterForTesting, mirroring
LocalBackend.SetHTTPTestClient. NewLocalBackendWithClientGen was
weird in being exported but taking an unexported type. This was noted
during code review:

https://github.com/tailscale/tailscale/pull/1818#discussion_r623155669

which ended in:

"I'll leave it for y'all to clean up if you find some way to do it elegantly."

This is more idiomatic.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Avery Pennarun 0181a4d0ac ipnlocal: don't pause the controlclient until we get at least one netmap.
Without this, macOS would fail to display its menu state correctly if you
started it while !WantRunning. It relies on the netmap in order to show
the logged-in username.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun 4ef207833b ipn: !WantRunning + !LoggedOut should not be idle on startup.
There was logic that would make a "down" tailscale backend (ie.
!WantRunning) refuse to do any network activity. Unfortunately, this
makes the macOS and iOS UI unable to render correctly if they start
while !WantRunning.

Now that we have Prefs.LoggedOut, use that instead. So `tailscale down`
will still allow the controlclient to connect its authroutine, but
pause the maproutine. `tailscale logout` will entirely stop all
activity.

This new behaviour is not obviously correct; it's a bit annoying that
`tailsale down` doesn't terminate all activity like you might expect.
Maybe we should redesign the UI code to render differently when
disconnected, and then revert this change.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun 4f3315f3da ipnlocal: setting WantRunning with EditPrefs was special.
EditPrefs should be just a wrapper around the action of changing prefs,
but someone had added a side effect of calling Login() sometimes. The
side effect happened *after* running the state machine, which would
sometimes result in us going into NeedsLogin immediately before calling
cc.Login().

This manifested as the macOS app not being able to Connect if you
launched it with LoggedOut=false and WantRunning=false. Trying to
Connect() would sent us to the NeedsLogin state instead.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun 2a4d1cf9e2 Add prefs.LoggedOut to fix several state machine bugs.
Fixes: tailscale/corp#1660

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun b0382ca167 ipn/ipnlocal: some state_test cleanups.
This doesn't change the actual functionality. Just some additional
comments and fine tuning.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun ac9cd48c80 ipnlocal: fix deadlock when calling Shutdown() from Start().
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun ecdba913d0 Revert "ipn/ipnlocal: be authoritative for the entire MagicDNS record tree."
Unfortunately this broke MagicDNS almost entirely.

Updates: tailscale/corp#1706

This reverts commit 1d7e7b49eb.
4 years ago
Avery Pennarun b7e31ab1a4 ipn: mock controlclient.Client; big ipn.Backend state machine test.
A very long unit test that verifies the way the controlclient and
ipn.Backend interact.

This is a giant sequential test of the state machine. The test passes,
but only because it's asserting all the wrong behaviour. I marked all
the behaviour I think is wrong with BUG comments, and several
additional test opportunities with TODO.

Note: the new test supercedes TestStartsInNeedsLoginState, which was
checking for incorrect behaviour (although the new test still checks
for the same incorrect behaviour) and assumed .Start() would converge
before returning, which it happens to do, but only for this very
specific case, for the current implementation. You're supposed to wait
for the notifications.

Updates: tailscale/corp#1660

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
Avery Pennarun b4d04a065f controlclient: extract a Client interface and rename Client->Auto.
This will let us create a mock or fake Client implementation for use
with ipn.Backend.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
David Anderson 1d7e7b49eb ipn/ipnlocal: be authoritative for the entire MagicDNS record tree.
With this change, shared node names resolve correctly on split DNS-supporting
operating systems.

Fixes tailscale/corp#1706

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick b7a497a30b ipn/ipnlocal: make FileTargets check IPN state first
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 4bf6939ee0 ipn/ipnlocal: remove t.Parallel from recently added test
The test modifies a global; it shouldn't be parallel.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick a48c8991f1 ipn/ipnlocal: add a test for earlier lazy machine key generation change
Updates #1573

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 306a094d4b ipn/ipnlocal: remove IPv6 records from MagicDNS.
Fixes #1813.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 3bdc9e9cb2 ipn/ipnlocal: prevent a now-expected [unexpected] log message on Windows
Updates #1620

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 138921ae40 ipn/ipnlocal: always write files to partial files, even in buffered mode
The intention was always that files only get written to *.partial
files and renamed at the end once fully received, but somewhere in the
process that got lost in buffered mode and *.partial files were only
being used in direct receive mode. This fix prevents WaitingFiles
from returning files that are still being transferred.

Updates tailscale/corp#1626

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 5e268e6153 ipn/ipnlocal: use delete marker files to work around Windows delete problems
If DeleteFile fails on Windows due to another process (anti-virus,
probably) having our file open, instead leave a marker file that the
file is logically deleted, and remove it from API calls and clean it
up lazily later.

Updates tailscale/corp#1626

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Aleksandar Pesic 7c985e4944 ipn/ipnlocal: add file sharing to windows shell
Updates: tailscale/winmin#33

Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
4 years ago
Brad Fitzpatrick fe53a714bd ipn/ipnlocal: add a LocalBackend.Start fast path if already running
Updates tailscale/corp#1621

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ad1a595a75 ipn/ipnlocal: close peer API listeners on transition away from Running
Updates tailscale/corp#1621

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 8a449c4dcd ipn: define NewBackendServer nil as not affecting Backend's NotifyCallback
Updates tailscale/corp#1646

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 36d030cc36 ipn/ipnlocal: use fallback default DNS whenever exit nodes are on.
Fixes #1625

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 86e85d8934 ipn/ipnlocal: add peerapi goroutine fetch
Between owners.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 2d786821f6 ipn/ipnlocal: put a retry loop around Windows file deletes
oh, Windows.

Updates tailscale/corp#1626

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 529ef98b2a ipn/ipnlocal: fix approxSize operator precedence
Whoops.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick b03c23d2ed ipn/ipnlocal: log on DeleteFile error
Updates tailscale/corp#1626

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago