Commit Graph

79 Commits (42dac7c5c2598c27918528daa4405fbb79e5f0f5)

Author SHA1 Message Date
Andrea Gottardo a8ee83e2c5
health: begin work to use structured health warnings instead of strings, pipe changes into ipn.Notify (#12406)
Updates tailscale/tailscale#4136

This PR is the first round of work to move from encoding health warnings as strings and use structured data instead. The current health package revolves around the idea of Subsystems. Each subsystem can have (or not have) a Go error associated with it. The overall health of the backend is given by the concatenation of all these errors.

This PR polishes the concept of Warnable introduced by @bradfitz a few weeks ago. Each Warnable is a component of the backend (for instance, things like 'dns' or 'magicsock' are Warnables). Each Warnable has a unique identifying code. A Warnable is an entity we can warn the user about, by setting (or unsetting) a WarningState for it. Warnables have:

- an identifying Code, so that the GUI can track them as their WarningStates come and go
- a Title, which the GUIs can use to tell the user what component of the backend is broken
- a Text, which is a function that is called with a set of Args to generate a more detailed error message to explain the unhappy state

Additionally, this PR also begins to send Warnables and their WarningStates through LocalAPI to the clients, using ipn.Notify messages. An ipn.Notify is only issued when a warning is added or removed from the Tracker.

In a next PR, we'll get rid of subsystems entirely, and we'll start using structured warnings for all errors affecting the backend functionality.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
5 months ago
Brad Fitzpatrick dd6c76ea24 ipn: remove unused Options.LegacyMigrationPrefs
I'm on a mission to simplify LocalBackend.Start and its locking
and deflake some tests.

I noticed this hasn't been used since March 2023 when it was removed
from the Windows client in corp 66be796d33c.

So, delete.

Updates #11649

Change-Id: I40f2cb75fb3f43baf23558007655f65a8ec5e1b2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Brad Fitzpatrick b9aa7421d6 ipn/ipnlocal: remove some dead code (legacyBackend methods) from LocalBackend
Nothing used it.

Updates #11649

Change-Id: Ic1c331d947974cd7d4738ff3aafe9c498853689e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
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 bed818a978 ipn/localapi: add support for multipart POST to file-put
This allows sending multiple files via Taildrop in one request.
Progress is tracked via ipn.Notify.

Updates tailscale/corp#18202

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Percy Wegmann 6c160e6321 ipn,tailfs: tie TailFS share configuration to user profile
Previously, the configuration of which folders to share persisted across
profile changes. Now, it is tied to the user's profile.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
8 months ago
Percy Wegmann e324a5660f ipn: include full tailfs shares in ipn notifications
This allows the Mac application to regain access to restricted
folders after restarts.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
9 months ago
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>
9 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>
9 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>
10 months ago
Val 73e53dcd1c cmd/tailscale,ipn/ipnlocal: print debug component names
Make the 'tailscale debug component-logs' command print the component names for
which extra logging can be turned on, for easier discoverability of debug
functions.

Updates #cleanup

Co-authored-by: Paul Scott <paul@tailscale.com>
Signed-off-by: Val <valerie@tailscale.com>
1 year ago
Marwan Sulaiman a4aa6507fa ipn, ipn/ipnlocal: add session identifier for WatchIPNBus
This PR adds a SessionID field to the ipn.Notify struct so that
ipn buses can identify a session and register deferred clean up
code in the future. The first use case this is for is to be able to
tie foreground serve configs to a specific watch session and ensure
its clean up when a connection is closed.

Updates #8489

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
1 year 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
David Anderson 91e64ca74f cmd/tailscale/cli: redact private key in debug netmap output by default
This makes `tailscale debug watch-ipn` safe to use for troubleshooting
user issues, in addition to local debugging during development.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Mihai Parparita a87e0b4ea8 ipn: update comments that refer to Options.Prefs
Things are slightly less tangled now that we've migrated prefs to the
backend (and renamed the field to LegacyMigrationPrefs).

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Brad Fitzpatrick 8dd1418774 ipn{,/ipnlocal}: add ipn.NotifyInitial* flags to WatchIPNBus
To simplify clients getting the initial state when they subscribe.

Change-Id: I2490a5ab2411253717c74265a46a98012b80db82
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 06c4c47d46 ipn: remove unused Backend interface
Only the macOS/iOS clients care about it still, so we'll move it
to their repo.

But keep a test that makes sure that LocalBackend continues to
implement it so we get an early warning sign before we break
macOS/iOS.

Change-Id: I56392b740fe55b4d28468b77124c821b5c46c22b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 5676d201d6 ipn: add a WatchIPNBus option bit to subscribe to EngineStatus changes
So GUI clients don't need to poll for it.

We still poll internally (for now!) but that's still cheaper. And will
get much cheaper later, without having to modify clients once they
start sending this bit.

Change-Id: I36647b701c8d1fe197677e5eb76f6894e8ff79f7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 20b27df4d0 tailcfg, ipn, controlclient: add MapResponse.ClientVersion, plumb to IPN bus
Updates #6480

Change-Id: I6321071425cd091148d8140d1eb24dd536bb7984
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 0f7da5c7dc ipn{,/ipnlocal}, client/tailscale: move Taildrop recv notifications to LocalAPI HTTP method
Updates #6417

Change-Id: Iec544c477a0e5e9f1c6bf23555afec06255e2e22
Signed-off-by: Brad Fitzpatrick <bradfitz@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 bb2cba0cd1 ipn: add missing check for nil Notify.Prefs
This was missed in 6afe26575c

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
Maisem Ali 0957bc5af2 ipn/ipnlocal: use ipn.PrefsView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick 1841d0bf98 wgengine/magicsock: make debug-level stuff not logged by default
And add a CLI/localapi and c2n mechanism to enable it for a fixed
amount of time.

Updates #1548

Change-Id: I71674aaf959a9c6761ff33bbf4a417ffd42195a7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Josh Soref d4811f11a0 all: fix spelling mistakes
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2 years ago
Brad Fitzpatrick 116f55ff66 all: gofmt for Go 1.19
Updates #5210

Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 3e1f2d01f7 ipn/ipnlocal: move Ping method from IPN bus to LocalBackend (HTTP)
Change-Id: I61759f1dae8d9d446353db54c8b1e13bfffb3287
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
James Tucker ae483d3446 wgengine, net/packet, cmd/tailscale: add ICMP echo
Updates tailscale/corp#754

Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Mihai Parparita 2ec371fe8b
ipn: remove FakeExpireAfter Backend function
No callers remain (last one was removed with
tailscale/corp@1c095ae08f), and it's
pretty esoteric.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
3 years ago
David Anderson 7e8d5ed6f3 ipn: use key.NodePublic instead of tailcfg.NodeKey
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 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
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
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 3d0599fca0 ipn{,/ipnlocal}: in direct file receive mode, don't rename partial file
Let caller (macOS) do it so Finder progress bar can be dismissed
without races.

Updates tailscale/corp#1575

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick f5742b0647 ipn/ipnlocal: add LocalBackend.SetDirectFileRoot
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 00d641d9fc ipn/localapi: move EditPrefs to localapi
Follow-up/revision to recent 53cfff109b which
added EditPrefs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 20e7646b8d ipn/ipnlocal: always set Notify.FilesWaiting, set IncomingFiles non-nil when empty 4 years ago
Brad Fitzpatrick 6d01d3bece ipn/ipnlocal: provide IPN bus updates as files arrive
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 950fc28887 ipn, paths, cmd/tailscaled: remove LegacyConfigPath, relaynode migration
It is time.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d581ee2536 ipn: remove Options.HTTPTestClient, move to LocalBackend
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 799973a68d ipn: move Options.Notify to its own method
We already had SetNotifyCallback elsewhere on controlclient, so use
that name.

Baby steps towards some CLI refactor work.

Updates tailscale/tailscale#1436
4 years ago
Brad Fitzpatrick 53cfff109b ipn: replace SetWantRunning(bool) with EditPrefs(MaskedPrefs)
This adds a new ipn.MaskedPrefs embedding a ipn.Prefs, along with a
bunch of "has bits", kept in sync with tests & reflect.

Then it adds a Prefs.ApplyEdits(MaskedPrefs) method.

Then the ipn.Backend interface loses its weirdo SetWantRunning(bool)
method (that I added in 483141094c for "tailscale down")
and replaces it with EditPrefs (alongside the existing SetPrefs for now).

Then updates 'tailscale down' to use EditPrefs instead of SetWantRunning.

In the future, we can use this to do more interesting things with the
CLI, reconfiguring only certain properties without the reset-the-world
"tailscale up".

Updates #1436

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 672b9fd4bd ipn{,/ipnlocal}: set new Notify.FilesWaiting when server has file(s)
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 2384c112c9 net/packet, wgengine/{filter,tstun}: add TSMP ping
Fixes #1467

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0a02aaf813 control, ipn, tailcfg: remove golang.org/x/oauth2 dep, add tailcfg.Oauth2Token
golang.org/x/oauth2 pulls in App Engine and grpc module dependencies,
screwing up builds that depend on this module.

Some background on the problem:
https://go.googlesource.com/proposal/+/master/design/36460-lazy-module-loading.md

Fixes tailscale/corp#1471

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d0dffe33c0 cmd/tailscale, ipn/localapi: use localapi for status, not IPN acrobatics
Yay simpler code.

Tested on Linux, macOS and Windows.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 1e7a35b225 types/netmap: split controlclient.NetworkMap off into its own leaf package
Updates #1278

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