Commit Graph

1415 Commits

Author SHA1 Message Date
Brad Fitzpatrick
b657187a69 cmd/tailscale, logtail: add 'tailscale debug daemon-logs' logtail mechanism
Fixes #6836

Change-Id: Ia6eb39ff8972e1aa149aeeb63844a97497c2cf04
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-15 11:23:28 -08:00
Andrew Dunham
3a018e51bb ipn/ipnlocal: move handling of expired nodes to LocalBackend
In order to be able to synthesize a new NetMap when a node expires, have
LocalBackend start a timer when receiving a new NetMap that fires
slightly after the next node expires. Additionally, move the logic that
updates expired nodes into LocalBackend so it runs on every netmap
(whether received from controlclient or self-triggered).

Updates #6932

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I833390e16ad188983eac29eb34cc7574f555f2f3
2023-01-14 16:35:02 -05:00
Mihai Parparita
67f82e62a1 ipn/ipnlocal: add Expired to PeerStatus
Needed for clients that get information via the /v0/status LocalAPI
endpoint (e.g. to not offer expired exit nodes as options).

Updates tailscale/corp#8702

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2023-01-13 18:21:56 -08:00
Andrew Dunham
11ce5b7e57 ipn/ipnlocal, wgengine/magicsock: check Expired bool on Node; print error in Ping
Change-Id: Ic5f533f175a6e1bb73d4957d8c3f970add42e82e
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2023-01-13 16:56:34 -05:00
Brad Fitzpatrick
61dfbc0a6e cmd/tailscale/cli: plumb TUN mode into tailscale web template
UI works remains, but data is there now.

Updates #4015

Change-Id: Ib91e94718b655ad60a63596e59468f3b3b102306
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-13 07:59:40 -08:00
James Tucker
2afa1672ac ipn/ipnlocal: disallow unsigned peers from WoL
Unsigned peers should not be allowed to generate Wake-on-Lan packets,
only access Funnel.

Updates #6934
Updates #7515
Updates #6475

Signed-off-by: James Tucker <james@tailscale.com>
2023-01-10 15:54:48 -08:00
Brad Fitzpatrick
1116602d4c ssh/tailssh: add OpenBSD support for Tailscale SSH
And bump go.mod for https://github.com/u-root/u-root/pull/2593

Change-Id: I36ec94c5b2b76d671cb739f1e9a1a43ca1d9d1b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-09 12:58:15 -08:00
Brad Fitzpatrick
69c0b7e712 ipn/ipnlocal: add c2n handler to flush logtail for support debugging
Updates tailscale/corp#8564

Change-Id: I0c619d4007069f90cffd319fba66bd034d63e84d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-05 12:06:07 -08:00
Tom DNetto
0088c5ddc0 health,ipn/ipnlocal: report the node being locked out as a health issue
Signed-off-by: Tom DNetto <tom@tailscale.com>
2023-01-04 16:20:47 -08:00
Tom DNetto
907f85cd67 cmd/tailscale,tka: make KeyID return an error instead of panicking
Signed-off-by: Tom DNetto <tom@tailscale.com>
2023-01-04 09:51:31 -08:00
Kristoffer Dalby
c4e262a0fc
ipn/profiles: set default prefs based on Windows registry (#6803)
Co-authored-by: Maisem Ali maisem@tailscale.com
2023-01-04 18:34:31 +01:00
Brad Fitzpatrick
eafbf8886d ipn/localapi: add localapi debug endpoints for packet filter/matches
For debugging #6423. This is easier than TS_DEBUG_MAP, as this means I
can pipe things into jq, etc.

Updates #6423

Change-Id: Ib3e7496b2eb3f47d4bed42e9b8045a441424b23c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-03 15:54:51 -08:00
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>
2023-01-03 10:06:24 -08:00
Brad Fitzpatrick
aad6830df0 util/codegen, all: use latest year, not time.Now, in generated files
Updates #6865

Change-Id: I6b86c646968ebbd4553cf37df5e5612fbf5c5f7d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2023-01-02 20:38:32 -08:00
Anton Tolchanov
82b9689e25
ipn/ipnlocal: maintain a proxy handler per backend (#6804)
By default, `http.Transport` keeps idle connections open hoping to re-use them in the future. Combined with a separate transport per request in HTTP proxy this results in idle connection leak.

Fixes #6773
2022-12-21 18:36:58 +00:00
Brad Fitzpatrick
0f604923d3 ipn/ipnlocal: fix StatusWithoutPeers not populating parts of Status
Fixes #4311

Change-Id: Iaae0615148fa7154f4ef8f66b455e3a6c2fa9df3
Co-authored-by: Claire Wang <claire@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-12-19 13:15:28 -08:00
Anton Tolchanov
53c4892841 ipn/ipnserver: propagate http.Serve error
This ensures that we capture error returned by `Serve` and exit with a
non-zero exit code if it happens.

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2022-12-15 15:01:56 +00:00
Joe Tsai
bd2995c14b
ipn/ipnlocal: simplify redactErr (#6716)
Use multierr.Range to iterate through an error tree
instead of multiple invocations of errors.As.
This scales better as we add more Go error types to the switch.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-12-12 17:51:03 -08:00
Mihai Parparita
47002d93a3 ipn/ipnlocal: add a few metrics for PeerAPI and LocalAPI
Mainly motivated by wanting to know how much Taildrop is used, but
also useful when tracking down how many invalid requests are
generated.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-12-12 10:07:18 -08:00
salman
2d271f3bd1 ipn/ipnlocal: disallow exit nodes from using exit nodes
Nodes which have both -advertise-exit-node and -exit-node in prefs
should continue have them until the next invocation of `tailscale up`.

Updates #3569.

Signed-off-by: salman <salman@tailscale.com>
2022-12-08 17:10:33 +03:00
shayne
98114bf608
cmd/tailscale/cli, ipn/localapi: add funnel status to status command (#6402)
Fixes #6400

open up GETs for localapi serve-config to allow read-only access to
ServeConfig

`tailscale status` will include "Funnel on" status when Funnel is
configured. Prints nothing if Funnel is not running.

Example:

 $ tailscale status
 <nodes redacted>

 # Funnel on:
 #     - https://node-name.corp.ts.net
 #     - https://node-name.corp.ts.net:8443
 #     - tcp://node-name.corp.ts.net:10000

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2022-12-07 22:17:40 -05:00
Tom DNetto
55e0512a05 ipn/ipnlocal,cmd/tailscale: minor improvements to lock modify command
* Do not print the status at the end of a successful operation
 * Ensure the key of the current node is actually trusted to make these changes

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-12-07 10:28:21 -08:00
Andrew Dunham
a887ca7efe ipn/ipnlocal: improve redactErr to handle more cases
This handles the case where the inner *os.PathError is wrapped in
another error type, and additionally will redact errors of type
*os.LinkError. Finally, add tests to verify that redaction works.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ie83424ff6c85cdb29fb48b641330c495107aab7c
2022-12-06 19:37:15 -05:00
Brad Fitzpatrick
1598cd0361 net/tsaddr: remove ContainsFunc helpers (they're now in x/exp/slices)
x/exp/slices now has ContainsFunc (golang/go#53983) so we can delete
our versions.

Change-Id: I5157a403bfc1b30e243bf31c8b611da25e995078
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-12-05 18:50:24 -08:00
Tom DNetto
9c773af04c ipn/ipnlocal: fix use of stale profile while processing netmap
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-12-05 11:06:32 -08:00
Brad Fitzpatrick
964d723aba ipn/{ipnserver,localapi}: fix InUseOtherUser handling with WatchIPNBus
Updates tailscale/corp#8222

Change-Id: I2d6fa6514c7b8d0f89fded35a2d44e7df27e6fb1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-12-03 18:58:19 -08:00
Maisem Ali
86b6ff61e6 ipn/ipnlocal: fix Prefs access without mu being held
Noticed while working on a different fix.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-12-03 11:44:39 +05:00
Maisem Ali
cdb924f87b ipn/ipnlocal: sanitize prefs in more notify code paths
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-12-03 11:44:39 +05:00
Brad Fitzpatrick
57124e2126 ipn/localapi: add debug (root-required) access to inject debug Notify
For testing of Windows GUI client.

Updates #6480

Change-Id: I42f7526d95723e14bed7085fb759e371b43aa9da
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-12-02 20:26:08 -08:00
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>
2022-12-02 11:55:54 -08:00
Brad Fitzpatrick
e1d7d072a3 ipn/ipnlocal: set Notify.Version on initial Notifies
Missed when added recently in 8dd1418774

Change-Id: Id682640a54c3717afe084edaf69258ad23031b6c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-12-01 19:36:57 -08:00
Tom DNetto
74c1f632f6 types/key,cmd/tailscale/cli: support tlpub prefix for tailnet-lock keys
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-30 18:04:47 -08:00
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>
2022-11-30 17:50:51 -08:00
Brad Fitzpatrick
a277eb4dcf ipn/ipnlocal: add missing context cancel
If user's fn returned false and never canceled their ctx, we never
stopped the NotifyWatchEngineUpdates goroutine.

This was introduced recently (this cycle).

Change-Id: I3453966ac71e00727296ddd237ef845782f4e52e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-30 17:50:51 -08:00
Mihai Parparita
978d6af91a ipn/ipnlocal: tweak error handling in interfaces PeerAPI debug endpoint
We were writing the error when getting the default interface before
setting the content type, so we'd get HTML treated as plain text.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-11-30 17:47:37 -08:00
Brad Fitzpatrick
5bdca747b7 ipn/ipnlocal: fix netstack peerapi crash over IPv6
The peerapi IPv6 listener has a nil listener.
But we didn't need the listener's address anyway, so don't
try to use it.

Change-Id: I8e8a1a895046d129a3683973e732d9bed82f3b02
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-30 16:28:53 -08:00
Tom DNetto
f1ab11e961 ipn/ipnlocal,tailcfg: introduce capability to gate TKA init paths
Previously, `TAILSCALE_USE_WIP_CODE` was needed to hit a bunch of the TKA paths. With
this change:

 - Enablement codepaths (NetworkLockInit) and initialization codepaths (tkaBootstrapFromGenesisLocked via tkaSyncIfNeeded)
   require either the WIP envknob or CapabilityTailnetLockAlpha.
 - Normal operation codepaths (tkaSyncIfNeeded, tkaFilterNetmapLocked) require TKA to be initialized, or either-or the
   envknob / capability.
 - Auxillary commands (ie: changing tka keys) require TKA to be initialized.

The end result is that it shouldn't be possible to initialize TKA (or subsequently use any of its features) without being
sent the capability or setting the envknob on tailscaled yourself.

I've also pulled out a bunch of unnecessary checks for CanSupportNetworkLock().

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-30 13:50:22 -08:00
Tom DNetto
9a80b8fb10 cmd/tailscale,ipn: surface TKA-filtered peers in lock status command
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-30 13:25:31 -08:00
Brad Fitzpatrick
74744b0a4c ipn: be more consistent with omitempty on debug/rare Prefs
Change-Id: Ib0ec72f243cdb2aca8dd392644d4eed33c3f92e6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-30 04:33:27 -08:00
Maisem Ali
82ad585b5b ipn/ipnlocal: account for ControlURL when merging profiles
We merge/dedupe profiles based on UserID and NodeID, however we were not accounting for ControlURLs.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-30 04:39:06 +05:00
Maisem Ali
adc302f428 all: use named pipes on windows
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-30 04:05:26 +05:00
Tom DNetto
45042a76cd cmd/tailscale,ipn: store disallowed TKA's in prefs, lock local-disable
Take 2 of https://github.com/tailscale/tailscale/pull/6546

Builds on https://github.com/tailscale/tailscale/pull/6560

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-29 13:43:38 -08:00
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>
2022-11-29 12:29:42 -08:00
Brad Fitzpatrick
6d012547b6 ipn/ipnlocal: use double dash flag style
The Go style weirds people out so we try to stick to the more
well-known double hyphen style in docs.

Change-Id: Iad6db5c82cda37f6b7687eed7ecd9276f8fd94d6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-29 11:34:08 -08:00
Brad Fitzpatrick
390d1bb871 Revert "ipn,types/persist: store disallowed TKA's in prefs, lock local-disable"
This reverts commit f1130421f0.

It was submitted with failing tests (go generate checks)

Requires a lot of API changes to fix so rolling back instead of
forward.

Change-Id: I024e8885c0ed44675d3028a662f386dda811f2ad
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-29 11:20:26 -08:00
Tom DNetto
f1130421f0 ipn,types/persist: store disallowed TKA's in prefs, lock local-disable
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-29 10:31:02 -08:00
Aaron Klotz
659e7837c6 health, ipn/ipnlocal: when -no-logs-no-support is enabled, deny access to tailnets that have network logging enabled
We want users to have the freedom to start tailscaled with `-no-logs-no-support`,
but that is obviously in direct conflict with tailnets that have network logging
enabled.

When we detect that condition, we record the issue in health, notify the client,
set WantRunning=false, and bail.

We clear the item in health when a profile switch occurs, since it is a
per-tailnet condition that should not propagate across profiles.

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-11-29 11:42:20 -06:00
Maisem Ali
ad41cbd9d5 ipn/ipnlocal: sanitize prefs before sending over IPN Bus
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-29 12:43:38 +05:00
Brad Fitzpatrick
0cb2ccce7f safesocket: remove the IPN protocol support
Updates #6417

Change-Id: I78908633de842d83b2cc8b10a864a0f88ab1b113
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-28 20:44:59 -08:00
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>
2022-11-28 19:03:27 -08:00
Aaron Klotz
6e33d2da2b ipn/ipnauth, util/winutil: add temporary LookupPseudoUser workaround to address os/user.LookupId errors on Windows
I added util/winutil/LookupPseudoUser, which essentially consists of the bits
that I am in the process of adding to Go's standard library.

We check the provided SID for "S-1-5-x" where 17 <= x <= 20 (which are the
known pseudo-users) and then manually populate a os/user.User struct with
the correct information.

Fixes https://github.com/tailscale/tailscale/issues/869
Fixes https://github.com/tailscale/tailscale/issues/2894

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-11-28 15:53:34 -06:00
Brad Fitzpatrick
3b0de97e07 cmd/tailscaled: unify the two Windows paths + separate IPN server path
tailscaled on Windows had two entirely separate start-up paths for running
as a service vs in the foreground. It's been causing problems for ages.
This unifies the two paths, making them be the same as the path used
for every other platform.

Also, it uses the new async LocalBackend support in ipnserver.Server
so the Server can start serving HTTP immediately, even if tun takes
awhile to come up.

Updates #6535

Change-Id: Icc8c4f96d4887b54a024d7ac15ad11096b5a58cf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-28 13:31:49 -08:00
Brad Fitzpatrick
ea25ef8236 util/set: add new set package for SetHandle type
We use this pattern in a number of places (in this repo and elsewhere)
and I was about to add a fourth to this repo which was crossing the line.
Add this type instead so they're all the same.

Also, we have another Set type (SliceSet, which tracks its keys in
order) in another repo we can move to this package later.

Change-Id: Ibbdcdba5443fae9b6956f63990bdb9e9443cefa9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-28 10:44:17 -08:00
Tom DNetto
5c8d2fa695 cmd/tailscale,ipn: improve UX of lock init command, cosmetic changes
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-28 10:39:04 -08:00
Brad Fitzpatrick
e8cc78b1af ipn/ipnserver: change Server to let LocalBackend be supplied async
This is step 1 of de-special-casing of Windows and letting the
LocalAPI HTTP server start serving immediately, even while the rest of
the world (notably the Engine and its TUN device) are being created,
which can take a few to dozens of seconds on Windows.

With this change, the ipnserver.New function changes to not take an
Engine and to return immediately, not returning an error, and let its
Run run immediately. If its ServeHTTP is called when it doesn't yet
have a LocalBackend, it returns an error. A TODO in there shows where
a future handler will serve status before an engine is available.

Future changes will:

* delete a bunch of tailscaled_windows.go code and use this new API
* add the ipnserver.Server ServerHTTP handler to await the engine
  being available
* use that handler in the Windows GUI client

Updates #6522

Change-Id: Iae94e68c235e850b112a72ea24ad0e0959b568ee
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-28 09:48:33 -08:00
Brad Fitzpatrick
8049053f86 ipn/*: make new WindowsUserID type to consolidate docs
The "userID is empty everywhere but Windows" docs on lots of places
but not everywhere while using just a string type was getting
confusing. This makes a new type to wrap up those rules, however
weird/historical they might be.

Change-Id: I142e85a8e38760988d6c0c91d0efecedade81b9b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-27 12:08:07 -08:00
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>
2022-11-26 15:51:33 -08:00
Brad Fitzpatrick
f45106d47c ipn/ipnserver: move Windows-specific code to tailscaled_windows.go
We'll eventually remove it entirely, but for now move get it out of ipnserver
where it's distracting and move it to its sole caller.

Updates #6522

Change-Id: I9c6f6a91bf9a8e3c5ea997952b7c08c81723d447
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-26 15:51:22 -08:00
Brad Fitzpatrick
109aa3b2fb cmd/tailscale: add start of "debug derp" subcommand
Updates #6526

Change-Id: I84e440a8bd837c383000ce0cec4ff36b24249e8b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-26 15:40:25 -08:00
Brad Fitzpatrick
b0545873e5 ipn/ipnserver: remove protoSwitchConn shenanigans; just use http.Server early
Now that everything's just HTTP, there's no longer a need to have a
header-sniffing net.Conn wraper that dispatches which route to
take. Refactor to just use an http.Server earlier instead.

Updates #6417

Change-Id: I12a2054db4e56f48660c46f81233db224fdc77cb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-26 11:02:54 -08:00
Brad Fitzpatrick
f3ba268a96 ipn/ipnserver: move BabysitProc to tailscaled_windows.go
It's only used by Windows. No need for it to be in ipn/ipnserver,
which we're trying to trim down.

Change-Id: Idf923ac8b6cdae8b5338ec26c16fb8b5ea548071
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-25 12:26:38 -08:00
Maisem Ali
699b39dec1 ipn/ipnlocal: drop LocalBackend.inServerMode
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-25 22:16:37 +05:00
Brad Fitzpatrick
7e016c1d90 ipn/ipnserver: remove IPN protocol server
Unused in this repo as of the earlier #6450 (300aba61a6)
and unused in the Windows GUI as of tailscale/corp#8065.

With this ipn.BackendServer is no longer used and could also be
removed from this repo. The macOS and iOS clients still temporarily
depend on it, but I can move it to that repo instead while and let its
migration proceed on its own schedule while we clean this repo up.

Updates #6417
Updates tailscale/corp#8051

Change-Id: Ie13f82af3eb9f96b3a21c56cdda51be31ddebdcf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-25 08:12:06 -08:00
Brad Fitzpatrick
1fdfb0dd08 ipn/localapi: add "enginestatus" debug command to LocalAPI
To force an EngineStatus update to the IPN bus.

This is a temporary measure while migrating the Windows GUI entirely
to the LocalAPI and off the old IPN protocol. The old IPN protocol
had RequestEngineStatus and LocalAPI didn't.

Updates #6417

Change-Id: I8ff525fc3dd82bdd9d92c2bdad6db5b75609eacd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-25 07:28:09 -08:00
Maisem Ali
c258015165 ipn/ipnlocal,ipnserver: rename {,Set}CurrentUser to {,Set}CurrentUserID
Address comments from https://github.com/tailscale/tailscale/pull/6506#discussion_r1032454064

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-25 19:48:04 +05:00
Brad Fitzpatrick
0a842f353c ipn/ipnserver: move more connection acceptance logic to LocalBackend
Follow-up to #6467 and #6506.

LocalBackend knows the server-mode state, so move more auth checking
there, removing some bookkeeping from ipnserver.Server.

Updates #6417
Updates tailscale/corp#8051

Change-Id: Ic5d14a077bf0dccc92a3621bd2646bab2cc5b837
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-25 06:24:29 -08:00
Brad Fitzpatrick
5ea7c7d603 ipn/{ipnlocal,ipnserver}: add some comments
Change-Id: Ieb5917edaf572342b755caa458693512c7aece81
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-25 06:05:45 -08:00
Maisem Ali
a3cd171773 ipn/ipnserver: remove Server.serverModeUser
We can just rely on LocalBackend.CurrentUser

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-25 18:43:16 +05:00
Maisem Ali
d321b0ea4f ipn/ipnlocal: add docs to LocalBackend.SetCurrentUserID
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-25 18:43:16 +05:00
Brad Fitzpatrick
250edeb3da ipn/ipnserver: only permit the pre-HTTP LocalAPI protocol on Windows
Updates #6417

Change-Id: I1c9dbee3f72969f703b3ff2dbbaa145a17db868b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-24 14:56:04 -08:00
Brad Fitzpatrick
b68d008fee envknob: add CanTaildrop (TS_DISABLE_TAILDROP) to disable taildrop on device
This matches CanSSHD (TS_DISABLE_SSH_SERVER) for administratively
disabling the code on a node, regardless of local or server configs.

This can be configured in /etc/default/tailscaled on Linux,
%ProgramData%\Tailscale\tailscaled-env.txt on Windows,
or /etc/tailscale/tailscaled-env.txt on Synology. (see getPlatformEnvFile)

Also delete some dead code and tidy up some docs.

Change-Id: I79a87c03e33209619466ea8aeb0f6651afcb8789
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-24 07:51:17 -08:00
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>
2022-11-23 20:24:12 -08:00
Brad Fitzpatrick
4d3713f631 envknob: add GOOS func
Centralize the fake GOOS stuff, start to use it more. To be used more
in the future.

Change-Id: Iabacfbeaf5fca0b53bf4d5dbcdc0367f05a205f9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-23 18:35:43 -08:00
Brad Fitzpatrick
6e6f27dd21 ipn/ipnlocal: lock down unsigned peers more
Apparently there's no tracking bug?

Updates tailscale/corp#7515 for ingress/funnel at least.

Change-Id: I03bc54fdc1f53f9832ab8b51475b2d676c38d897
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-23 18:20:39 -08:00
Brad Fitzpatrick
7bff7345cc ipn/ipnauth: start splitting ipnserver into new ipnauth package
We're trying to gut 90% of the ipnserver package. A lot will get
deleted, some will move to LocalBackend, and a lot is being moved into
this new ipn/ipnauth package which will be leaf-y and testable.

This is a baby step towards moving some stuff to ipnauth.

Update #6417
Updates tailscale/corp#8051

Change-Id: I28bc2126764f46597d92a2d72565009dc6927ee0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-23 10:57:02 -08:00
Maisem Ali
3a5d02cb31 ipn/ipnlocal: update comment about using FallbackResolvers for exit nodes
While reading the DNS code noticed that we were still using FallbackResolvers
in this code path but the comment was out of date.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-23 16:52:22 +05:00
Brad Fitzpatrick
300aba61a6 ipn, cmd/tailscale/cli: add LocalAPI IPN bus watch, Start, convert CLI
Updates #6417
Updates tailscale/corp#8051

Change-Id: I1ca360730c45ffaa0261d8422877304277fc5625
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-22 13:11:44 -08:00
Maisem Ali
d4f6efa1df ipn/ipnlocal: handle case when selected profile is deleted
Profile keys are not deleted but are instead set to `nil` which results
in getting a nil error and we were not handling that correctly.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-23 00:42:18 +05:00
Tom DNetto
b45b948776 ipn/ipnlocal: call initTKALocked on backend start
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-22 11:06:52 -08:00
Tom DNetto
aeb80bf8cb ipn/ipnlocal,tka: generate a nonce for each TKA
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-22 10:31:22 -08:00
Tom DNetto
6708f9a93f cmd/tailscale,ipn: implement lock log command
This commit implements `tailscale lock log [--limit N]`, which displays an ordered list
of changes to network-lock state in a manner familiar to `git log`.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-22 10:30:59 -08:00
Tom DNetto
ed1fae6c73 ipn/ipnlocal: always tx TKA sync after enablement
By always firing off a sync after enablement, the control plane should know the node's TKA head
at all times.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-22 10:25:13 -08:00
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>
2022-11-22 08:49:13 -08:00
Maisem Ali
8d84178884 ipn/ipnlocal: stop storing serverURL in LocalBackend
It's only read in a couple of places and we can read from Prefs directly.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-22 16:51:36 +05:00
Maisem Ali
aeac4bc8e2 ipn/ipnlocal: account for currentUserID when iterating over knownProfiles
We were not checking the currentUserID in all code paths that looped over
knownProfiles. This only impacted multi-user Windows setups.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-22 15:31:17 +05:00
Maisem Ali
18c7c3981a ipn/ipnlocal: call checkPrefs in Start too
We were not calling checkPrefs on `opts.*Prefs` in (*LocalBackend).Start().

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-22 15:13:00 +05:00
Brad Fitzpatrick
0480a925c1 ipn/ipnlocal: send Content-Security-Policy, etc to peerapi browser requests
Updates tailscale/corp#7948

Change-Id: Ie70e0d042478338a37b7789ac63225193e47a524
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-21 17:33:06 -08:00
Maisem Ali
b94b91c168 cmd/tailscale/cli: add ability to set short names for profiles
This adds a `--nickname` flag to `tailscale login|set`.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-22 04:03:24 +05:00
Maisem Ali
575fd5f22b ipn: add ability to name profiles
Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-22 04:03:24 +05:00
Mihai Parparita
33520920c3 all: use strs.CutPrefix and strs.CutSuffix more
Updates places where we use HasPrefix + TrimPrefix to use the combined
function.

Updates #5309

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-11-21 14:32:16 -08:00
Brad Fitzpatrick
039ea51ca6 ipn/ipnlocal: add health warning for unstable builds
Like the macOS About dialog.

Change-Id: Ic27f091e66e29d5eebe4e195eda97ed331d748fd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-19 14:22:39 -08:00
Brad Fitzpatrick
a26f23d949 ipn/ipnlocal: actually fill out PeerAPIURLs in PeerStatus
The earlier 5f6d63936f was not complete.

Updates tailscale/corp#7515

Change-Id: I35efca51d1584c48ef6834a7d29cd42d7c943628
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-19 13:35:39 -08:00
shayne
f52a6d1b8c
cmd/tailscale/cli, ipn: move serve CLI funcs on to ServeConfig (#6401)
Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2022-11-19 09:42:14 -05:00
Tom DNetto
2a991a3541 ipn/{localapi,ipnserver}: set a CSP for ServeHTMLStatus, refactor host check
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-18 16:13:09 -08:00
Maisem Ali
f1ad26f694 ipn/ipnlocal: strip NetworkLockKey from Prefs
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-19 00:57:49 +05:00
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>
2022-11-18 14:00:19 +05:00
Brad Fitzpatrick
f18dde6ad1 ipn/ipnserver: validate Host header on debug ServeHTMLStatus status
Updates tailscale/corp#7948

Change-Id: I3a8c64f353af1eeae620812b2700ce4af4fbbc88
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-17 23:02:40 -08:00
Brad Fitzpatrick
a13753ae1e ipn/localapi: require POST to add a bugreport marker
The LocalClient.BugReport method already sends it via POST.

Updates tailscale/corp#7948

Change-Id: I98dbd558c99d4296d934baa5ebc97052c7413073
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-17 21:54:06 -08:00
shayne
a97369f097
cmd/tailscale/cli: flesh out serve CLI and tests (#6304)
Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2022-11-17 16:09:43 -05:00
Maisem Ali
5f6d63936f ipn/ipnlocal: fill out PeerAPIURLs in PeerStatus
Updates tailscale/corp#7515

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-18 01:49:32 +05:00
Andrew Dunham
cec48743fb ipn/localapi: set security headers
Change-Id: I028b6ab91229e2f824e5a69856ca9e1844f7486e
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2022-11-17 10:59:13 -05:00
Maisem Ali
1de64e89cd ipn/ipnlocal: set Hostinfo.WireIngress when ingress enabled
Optimization for control.

Updates tailscale/corp#7515

Change-Id: Ie93b232ab3e543d53062b462bdc13e279176f7a9
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-17 02:39:25 +05:00
Mihai Parparita
b3da5de10f ipn/localapi: also allow localhost as the LocalAPI host
The Mac and iOS LocalAPI clients make requests to it.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-11-16 12:11:45 -08:00
Maisem Ali
b0736fe6f7 ipn/ipnlocal: move selfNode from peerAPIServer to peerAPIHandler
The peerAPIHandler is instantiated per PeerAPI call so it is
guaranteed to have the latest selfNode.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-17 01:02:03 +05:00
Maisem Ali
2f4fca65a1 ipn/ipnlocal: prevent duplicate profiles of the same user
Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-17 00:59:55 +05:00
Brad Fitzpatrick
e9c851b04b ipn/ipnlocal: also accept service IP IPv6 literal in brackets for quad100
The fix in 4fc8538e2 was sufficient for IPv6. Browsers (can?) send the
IPv6 literal, even without a port number, in brackets.

Updates tailscale/corp#7948

Change-Id: I0e429d3de4df8429152c12f251ab140b0c8f6b77
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-16 11:47:42 -08:00
Maisem Ali
296e712591 tailcfg: add CapabilityDebug
Updates tailscale/corp#7948

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-17 00:21:10 +05:00
Maisem Ali
1e78fc462c ipn/ipnlocal: add some validation to PeerAPI
Updates tailscale/corp#7948

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-16 23:33:53 +05:00
Maisem Ali
22238d897b all: standardize on PeerAPI
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-16 22:49:13 +05:00
Brad Fitzpatrick
1b56acf513 ipn/ipnlocal: move LocalBackend.validPopBrowserURL empty check from caller
I was too late with review feedback to 513780f4f8.

Updates tailscale/corp#7948

Change-Id: I8fa3b4eba4efaff591a2d0bfe6ab4795638b7c3a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-16 09:43:43 -08:00
Maisem Ali
513780f4f8 ipn/ipnlocal: move URL validation to LocalBackend
Updates tailscale/corp#7948

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-16 21:54:58 +05:00
Andrew Dunham
4caca8619e ipn/localapi: serve files with application/octet-stream Content-Type
Updates tailscale/corp#7948

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I5f570c04974598c7abae4017e4a7a0f63492c87c
2022-11-16 11:36:15 -05:00
Brad Fitzpatrick
4fc8538e2f ipn/ipnlocal: check quad100 Host header in info page
Updates tailscale/corp#7948

Change-Id: I0ab61c764bff9ba8afaf9070db73e971eb018477
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-16 08:18:12 -08:00
Maisem Ali
49b0ce8180 ipn/ipnlocal: update profile on server sent profile changes
We were not updating the LoginProfile.UserProfile when a netmap
updated the UserProfile (e.g. when a node was tagged via the admin panel).

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-16 21:08:53 +05:00
Brad Fitzpatrick
976e88d430 client/tailscale/apitype: add LocalAPIHost const, use it
Removes duplication.

Updates tailcale/corp#7948

Change-Id: I564c912ecfde31ba2293124bb1316e433c2a10f1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-16 08:07:51 -08:00
Brad Fitzpatrick
6ea2d01626 ipn/ipnlocal: be more assertive about rules for applyPrefsToHostinfo (now Locked)
The old docs were too cagey.

Change-Id: I92c4fdc4165e7ca35c4537aebe51eb3604b56f6d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-15 21:32:01 -08:00
Mihai Parparita
d3878ecd62 ipn/ipnlocal: add client metrics for profile switching
Updates #713

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-11-15 21:30:39 -08:00
Maisem Ali
235309adc4 all: store NL keys per profile
This moves the NetworkLock key from a dedicated StateKey to be part of the persist.Persist struct.
This struct is stored as part for ipn.Prefs and is also the place where we store the NodeKey.

It also moves the ChonkDir from "/tka" to "/tka-profile/<profile-id>". The rename was intentional
to be able to delete the "/tka" dir if it exists.

This means that we will have a unique key per profile, and a unique directory per profile.

Note: `tailscale logout` will delete the entire profile, including any keys. It currently does not
delete the ChonkDir.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-15 19:51:52 +00:00
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>
2022-11-15 20:45:38 +05:00
Tom DNetto
42855d219b ipn/ipnlocal: fix checks for node-key presence in TKA logic
Found by tests in another repo. TKA code wasn't always checking enough to be sure a node-key was set for the current state.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-14 20:33:31 +00:00
Mihai Parparita
0cc65b4bbe ipn/localapi: add LocalAPI endpoints for profile switching
Exposes a REST-y API for interacting with the profile switching
introduced in #6022.

Updates #713

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-11-14 11:37:10 -08:00
Tom DNetto
3271daf7a3 cmd/tailscale,ipn: support disablement args in lock cli, implement disable
* Support specifiying disablement values in lock init command
 * Support specifying rotation key in lock sign command
 * Implement lock disable command
 * Implement disablement-kdf command

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-14 19:22:33 +00:00
Brad Fitzpatrick
7c285fe7ee ipn/ipnlocal: fix error message typo in ingress peerapi handler
Updates tailscale/corp#7515

Change-Id: I81edd7d9f8958eef61be71d3d34e545cd3347008
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-13 12:54:38 -08:00
Brad Fitzpatrick
3114eacbb8 ipn/ipnlocal: don't warn about serve listener failing on IPv6-less machines
Fixes #6303

Change-Id: Ie1ce12938f68dfa0533246bbe3b9d7f3e749a243
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-13 10:11:25 -08:00
Brad Fitzpatrick
3f8e185003 health: add Warnable, move ownership of warnable items to callers
The health package was turning into a rando dumping ground. Make a new
Warnable type instead that callers can request an instance of, and
then Set it locally in their code without the health package being
aware of all the things that are warnable. (For plenty of things the
health package will want to know details of how Tailscale works so it
can better prioritize/suppress errors, but lots of the warnings are
pretty leaf-y and unrelated)

This just moves two of the health warnings. Can probably move more
later.

Change-Id: I51e50e46eb633f4e96ced503d3b18a1891de1452
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-13 08:00:27 -08:00
Maisem Ali
b87cb2c4a5 ipn/ipnlocal: call restart backend on user changes
This makes it so that the backend also restarts when users change,
otherwise an extra call to Start was required.

Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-13 09:00:15 +05:00
Maisem Ali
8e85227059 cmd/tailscale/cli: [set] handle selectively modifying routes/exit node
Noticed this while debugging something else, we would reset all routes if
either `--advertise-exit-node` or `--advertise-routes` were set. This handles
correctly updating them.

Also added tests.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-13 08:17:51 +05:00
Maisem Ali
26d1fc867e ipn/ipnlocal: delete profile on logout
Updates #713

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-13 07:32:24 +05:00
Maisem Ali
9e70daad6f ipn/ipnlocal: make TKA tests not have side effects
It left the envknob turned on which meant that running all the tests
in the package had different behavior than running just any one test.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-12 20:56:48 +05:00
shayne
74e892cbc2
ipn/ipnlocal: listen to serve ports on netmap addrs (#6282)
Updates tailscale/corp#7515

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2022-11-11 21:46:26 -05:00
Brad Fitzpatrick
08e110ebc5 cmd/tailscale: make "up", "status" warn if routes and --accept-routes off
Example output:

    # Health check:
    #     - Some peers are advertising routes but --accept-routes is false

Also, move "tailscale status" health checks to the bottom, where they
won't be lost in large netmaps.

Updates #2053
Updates #6266

Change-Id: I5ae76a0cd69a452ce70063875cd7d974bfeb8f1a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-11 10:56:50 -08:00
Tom DNetto
4c31183781 cmd/tailscale,ipn: minor fixes to tailscale lock commands
* Fix broken add/remove key commands
 * Make lock status display whether the node is signed

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-11 07:48:40 -06:00
Maisem Ali
ae18cd02c1 ipn: add AdvertisesExitNode and AdminPageURL accessors to PrefsView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-11 16:03:15 +05:00
Maisem Ali
6cc0036b40 ipn/ipnlocal: use updated prefs in tkaSyncIfNeeded
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-11 12:03:17 +05:00
Maisem Ali
f00a49667d control/controlclient: make Status.Persist a PersistView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-11 10:45:47 +05:00
Maisem Ali
4d330bac14 ipn/ipnlocal: add support for multiple user profiles
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-11 10:45:47 +05:00
Brad Fitzpatrick
c9d6a9cb4d ipn/ipnlocal: add optional TLS termination on proxied TCP connections
Updates tailscale/corp#7515

Change-Id: Ib250fa20275971563adccfa72db48e0cec02b7a5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 21:35:16 -08:00
Pat Maddox
9bf3ef4167 ssh/tailssh: add Tailscale SSH (server) support on FreeBSD
Change-Id: I607194b6ef99205e777f3df93a74ffe1a2e0344c
Signed-off-by: Pat Maddox <pat@ratiopbc.com>
2022-11-10 20:25:23 -08:00
shayne
e3a66e4d2f
ipn/localapi: introduce get/set config for serve (#6243)
Updates tailscale/corp#7515

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2022-11-10 22:58:40 -05:00
Brad Fitzpatrick
7b5866ac0a ipn/ipnlocal: support serving files/directories too
Updates tailscale/corp#7515

Change-Id: I7b4c924005274ba57763264313d70d2a0c55da30
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 18:09:35 -08:00
Mihai Parparita
7a07bc654b ipn/localapi: rename /profile to /pprof
Avoids name collision with profiles for user switching.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-11-10 12:02:16 -08:00
Brad Fitzpatrick
d7bfef12cf ipn/ipnlocal: support https+insecure:// backend proxy targets
Updates tailscale/corp#7515

Change-Id: Ie50295c09e4a16959b37087d8165c4d7360db37f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 10:09:49 -08:00
Brad Fitzpatrick
9dfb0916c2 ipn/ipnlocal, tailcfg: wire up ingress peerapi
Updates tailscale/corp#7515

Co-authored-by: Shayne Sweeney <shayne@tailscale.com>
Change-Id: I7eac7b4ac37fd8e8a9e0469594c1e9e7dd0da666
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 09:48:10 -08:00
Aaron Klotz
73b8968404 ipn/ipnlocal: ensure Persist information is saved to server mode start state
Numerous issues have been filed concerning an inability to install and run
Tailscale headlessly in unattended mode, particularly after rebooting. The
server mode `Prefs` stored in `server-state.conf` were not being updated with
`Persist` state once the node had been succesfully logged in.

Users have been working around this by finagling with the GUI to make it force
a state rewrite. This patch makes that unnecessary by ensuring the required
server mode state is updated when prefs are updated by the control client.

Fixes https://github.com/tailscale/tailscale/issues/3186

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-11-10 10:43:40 -06:00
Brad Fitzpatrick
32a4ff3e5f ipn/ipnlocal: implement the reverse proxy HTTP handler type
Updates tailscale/corp#7515

Change-Id: Icbfe57f44b9516388edc0556eb04a370a9e3e009
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 06:12:33 -08:00
Brad Fitzpatrick
6beb3184d5 ipn/ipnlocal: don't serve a TLS cert unless it has webserver config
Even if the name is right, or is configured on a different port.

Updates tailscale/corp#7515

Change-Id: I8b721968f3241af10d98431e1b5ba075223e6cd3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 06:12:33 -08:00
Brad Fitzpatrick
1a94c309ea ipn/ipnlocal: support web TLS ports other than 443
Updates tailscale/corp#7515

Change-Id: I87df50b1bc92efd1d8c538c2ad4f1222361e4d6b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 06:12:33 -08:00
Brad Fitzpatrick
4797bacb7c ipn/ipnlocal: send RST when serving an actionless TCPPortHandler
Updates tailscale/corp#7515

Change-Id: I790f1b5d1e8a887e39bb573b4610b8f37a3f5963
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-10 06:12:33 -08:00
Brad Fitzpatrick
b683921b87 ipn/ipnlocal: add start of handling TCP proxying
Updates tailscale/corp#7515

Change-Id: I82d19b5864674b2169f25ec8e429f60a543e0c57
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-09 16:38:11 -08:00
Brad Fitzpatrick
4bccc02413 ipn/ipnlocal: use ServerConfig views internally
Updates tailscale/corp#7515

Change-Id: Ica2bc44b92d281d5ce16cee55b7ca51c7910145c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-09 16:38:11 -08:00
Brad Fitzpatrick
25e26c16ee ipn/ipnlocal: start implementing web server bits of serve
Updates tailscale/corp#7515

Change-Id: I96f4016161ba3c370492da941274c6d9a234c2bb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-09 07:38:10 -08:00
Brad Fitzpatrick
df5e40f731 ipn: add WebServerConfig, add views
cmd/viewer couldn't deal with that map-of-map. Add a wrapper type
instead, which also gives us a place to add future stuff.

Updates tailscale/corp#7515

Change-Id: I44a4ca1915300ea8678e5b0385056f0642ccb155
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-09 06:17:45 -08:00
Brad Fitzpatrick
2daf0f146c ipn/ipnlocal, wgengine/netstack: start handling ports for future serving
Updates tailscale/corp#7515

Change-Id: I966e936e72a2ee99be8d0f5f16872b48cc150258
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-08 19:39:07 -08:00
Brad Fitzpatrick
6d8320a6e9 ipn/{ipnlocal,localapi}: move most of cert.go to ipnlocal
Leave only the HTTP/auth bits in localapi.

Change-Id: I8e23fb417367f1e0e31483e2982c343ca74086ab
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-07 21:50:04 -08:00
Brad Fitzpatrick
9be8d15979 ipn/localapi: refactor some cert code in prep for a move
I want to move the guts (after the HTTP layer) of the certificate
fetching into the ipnlocal package, out of localapi.

As prep, refactor a bit:

* add a method to do the fetch-from-cert-or-as-needed-with-refresh,
  rather than doing it in the HTTP hander

* convert two methods to funcs, taking the one extra field (LocalBackend)
  then needed from their method receiver. One of the methods needed
  nothing from its receiver.

This will make a future change easier to reason about.

Change-Id: I2a7811e5d7246139927bb86e7db8009bf09b3be3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-07 21:07:22 -08:00
Brad Fitzpatrick
5bb7e0307c cmd/tailscale, ipn/ipnlocal: add debug command to write to StateStore for dev
Not for end users (unless directed by support). Mostly for ease of
development for some upcoming webserver work.

Change-Id: I43acfed217514567acb3312367b24d620e739f88
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-07 15:34:43 -08:00
Brad Fitzpatrick
da8def8e13 all: remove old +build tags
The //go:build syntax was introduced in Go 1.17:

https://go.dev/doc/go1.17#build-lines

gofmt has kept the +build and go:build lines in sync since
then, but enough time has passed. Time to remove them.

Done with:

    perl -i -npe 's,^// \+build.*\n,,' $(git grep -l -F '+build')

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-04 07:25:42 -07:00
Maisem Ali
bb2cba0cd1 ipn: add missing check for nil Notify.Prefs
This was missed in 6afe26575c

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-11-04 04:12:53 +05:00
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>
2022-11-04 04:00:26 +05:00
Brad Fitzpatrick
e55ae53169 tailcfg: add Node.UnsignedPeerAPIOnly to let server mark node as peerapi-only
capver 48

Change-Id: I20b2fa81d61ef8cc8a84e5f2afeefb68832bd904
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-02 21:55:04 -07:00
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>
2022-11-02 16:17:59 -04:00
Tom DNetto
0af57fce4c cmd/tailscale,ipn: implement lock sign command
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-11-02 15:00:01 -05:00
Brad Fitzpatrick
910db02652 client/tailscale, tsnet, ipn/ipnlocal: prove nodekey ownership over noise
Fixes #5972

Change-Id: Ic33a93d3613ac5dbf172d6a8a459ca06a7f9e547
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-11-02 09:22:26 -07:00
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>
2022-10-31 11:05:44 -05:00
Anton Tolchanov
193afe19cb ipn/ipnlocal: add tags and a few other details to self status
This makes tags, creation time, exit node option and primary routes
for the current node exposed via `tailscale status --json`

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2022-10-29 10:00:06 +01:00
Mihai Parparita
4e6e3bd13d ipn/ipnlocal: fix a log line having function pointers instead of values
Followup to using ipn.PrefsView (#6031).

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-10-28 15:46:41 -07:00
Maisem Ali
19b5586573 cmd/tailscale/cli: add beginnings of tailscale set
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-25 22:27:37 -07:00
Maisem Ali
2a9ba28def ipn/ipnlocal: set prefs before calling tkaSyncIfNeeded
Caught this in a test in a different repo.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-25 11:57:42 -07:00
Maisem Ali
9f39c3b10f ipn/ipnlocal: make EditPrefs strip private keys before returning
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-24 15:57:00 -07:00
Maisem Ali
a2d15924fb types/persist: add PublicNodeKey helper
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-24 15:57:00 -07:00
Maisem Ali
0957bc5af2 ipn/ipnlocal: use ipn.PrefsView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-24 15:57:00 -07:00
Maisem Ali
20324eeebc ipn/prefs: add views
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-24 15:57:00 -07:00
Brad Fitzpatrick
def089f9c9 portlist: unexport all Poller fields, removing unused one, rework channels
Poller.C and Poller.c were duplicated for one caller. Add an accessor
returning the receive-only version instead. It'll inline.

Poller.Err was unused. Remove.

Then Poller is opaque.

The channel usage and shutdown was a bit sketchy. Clean it up.

And document some things.

Change-Id: I5669e54f51a6a13492cf5485c83133bda7ea3ce9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-10-22 05:47:34 -07:00
Brad Fitzpatrick
afce773aae ipn: remove handle.go
It was unused in this repo. The Windows client used it, but it can move there.

Change-Id: I572816fd80cbbf1b8db734879b6280857d5bd2a7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-10-19 20:52:22 -07:00
Brad Fitzpatrick
9475801ebe ipn/ipnlocal: fix E.G.G. port number accounting
Change-Id: Id35461fdde79448372271ba54f6e6af586f2304d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-10-18 06:43:47 -07:00
Maisem Ali
630bcb5b67 tsnet,client/tailscale: add APIClient which runs API over Noise.
Updates tailscale/corp#4383

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-10-17 11:37:17 -07:00
Andrew Dunham
c32f9f5865
cmd/tailscale, ipn: enable debug logs when --report flag is passed to bugreport (#5830)
Change-Id: Id22e9f4a2dcf35cecb9cd19dd844389e38c922ec
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-10-15 13:31:35 -04:00
Tom DNetto
a515fc517b ipn/ipnlocal: make tkaSyncIfNeeded exclusive with a mutex
Running corp/ipn#TestNetworkLockE2E has a 1/300 chance of failing, and
deskchecking suggests thats whats happening are two netmaps are racing each
other to be processed through tkaSyncIfNeededLocked. This happens in the
first place because we release b.mu during network RPCs.

To fix this, we make the tka sync logic an exclusive section, so two
netmaps will need to wait for tka sync to complete serially (which is what
we would want anyway, as the second run through probably wont need to
sync).

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-10-14 12:42:43 -07:00
Tom DNetto
227777154a control/controlclient,ipn/ipnlocal,tailcfg: rotate node-key signature on register
CAPVER 47

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-10-14 10:23:40 -07:00
Brad Fitzpatrick
b2994568fe ipn/localapi: put all the LocalAPI methods into a map
Rather than a bunch of switch cases.

Change-Id: Id1db813ec255bfab59cbc982bee351eb36373245
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-10-09 18:05:55 -07:00
Brad Fitzpatrick
6d76764f37 ipn/ipnlocal: fix taildrop target list UI bug
The macOS and iOS apps that used the /localapi/v0/file-targets handler
were getting too many candidate targets. They wouldn't actually accept
the file. This is effectively just a UI glitch in the wrong hosts
being listed as valid targets from the source side.

Change-Id: I6907a5a1c3c66920e5ec71601c044e722e7cb888
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-10-07 21:21:23 -07:00
Tom DNetto
a37ee8483f ipn/ipnlocal: fix data race from missing lock in NetworkLockStatus
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-10-05 11:51:49 -07:00
Tom DNetto
8602061f32 ipn/ipnlocal,tka: Fix bugs found by integration testing
* tka.State.staticValidateCheckpoint could call methods on a contained key prior to calling StaticValidate on that key
 * Remove broken backoff / RPC retry logic from tka methods in ipn/ipnlocal, to be fixed at a later time
 * Fix NetworkLockModify() which would attempt to take b.mu twice and deadlock, remove now-unused dependence on netmap
 * Add methods on ipnlocal.LocalBackend to be used in integration tests
 * Use TAILSCALE_USE_WIP_CODE as the feature flag so it can be manipulated in tests

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-10-05 11:12:34 -07:00
Tom DNetto
73db56af52 ipn/ipnlocal: filter peers with bad signatures when tka is enabled
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-10-05 10:56:17 -07:00
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>
2022-10-04 11:05:50 -07:00
Andrew Dunham
d7c0410ea8
ipn/localapi: print hostinfo and health on bugreport (#5816)
This information is super helpful when debugging and it'd be nice to not
have to scroll around in the logs to find it near a bugreport.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2022-10-03 10:54:46 -04:00
Mihai Parparita
8343b243e7 all: consistently initialize Logf when creating tsdial.Dialers
Most visible when using tsnet.Server, but could have resulted in dropped
messages in a few other places too.

Fixes #5743

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-30 14:40:56 -07:00
Josh Soref
d4811f11a0 all: fix spelling mistakes
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2022-09-29 13:36:13 -07:00
Adrian Dewhurst
c581ce7b00 cmd/tailscale, client, ipn, tailcfg: add network lock modify command
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
2022-09-29 11:28:47 -07:00
Tom DNetto
58ffe928af ipn/ipnlocal, tka: Implement TKA synchronization with the control plane
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-09-29 11:07:02 -07:00
Tom DNetto
ebd1637e50 ipn/ipnlocal,tailcfg: Identify client using NodeKey in tka RPCs
Updates https://github.com/tailscale/corp/pull/7024

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-09-27 09:37:28 -07:00
Brad Fitzpatrick
9bdf0cd8cd ipn/ipnlocal: add c2n /debug/{goroutines,prefs,metrics}
* and move goroutine scrubbing code to its own package for reuse
* bump capver to 45

Change-Id: I9b4dfa5af44d2ecada6cc044cd1b5674ee427575
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-26 11:16:38 -07:00
Andrew Dunham
b1867457a6
doctor: add package for running in-depth healthchecks; use in bugreport (#5413)
Change-Id: Iaa4e5b021a545447f319cfe8b3da2bd3e5e5782b
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2022-09-26 13:07:28 -04:00
Andrew Dunham
e1bdbfe710
tailcfg, control/controlhttp, control/controlclient: add ControlDialPlan field (#5648)
* tailcfg, control/controlhttp, control/controlclient: add ControlDialPlan field

This field allows the control server to provide explicit information
about how to connect to it; useful if the client's link status can
change after the initial connection, or if the DNS settings pushed by
the control server break future connections.

Change-Id: I720afe6289ec27d40a41b3dcb310ec45bd7e5f3e
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-09-23 13:06:55 -04:00
Maisem Ali
d5781f61a9 ipn/ipnlocal: return usernames when Tailscale SSH is enabled
It was checking if the sshServer was initialized as a proxy, but that
could either not have been initialized yet or Tailscale SSH could have
been disabled after intialized.

Also bump tailcfg.CurrentCapabilityVersion

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-09-21 14:06:40 -07:00
Tom DNetto
e9b98dd2e1 control/controlclient,ipn/ipnlocal: wire tka enable/disable
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-09-21 12:57:59 -07:00
Maisem Ali
054ef4de56 tailcfg: mark CapabilityFileSharingTarget as inter-node
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-09-19 11:08:34 -07:00
Brad Fitzpatrick
d045462dfb ipn/ipnlocal: add c2n method to get SSH username candidates
For control to fetch a list of Tailscale SSH username candidates to
filter against the Tailnet's SSH policy to present some valid
candidates to a user.

Updates #3802
Updates tailscale/corp#7007

Change-Id: I3dce57b7a35e66891d5e5572e13ae6ef3c898498
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-19 10:37:04 -07:00
Brad Fitzpatrick
65c24b6334 envknob: generalize Windows tailscaled-env.txt support
ipnserver previously had support for a Windows-only environment
variable mechanism that further only worked when Windows was running
as a service, not from a console.

But we want it to work from tailscaed too, and we want it to work on
macOS and Synology. So move it to envknob, now that envknob can change
values at runtime post-init.

A future change will wire this up for more platforms, and do something
more for CLI flags like --port, which the bug was originally about.

Updates #5114

Change-Id: I9fd69a9a91bb0f308fc264d4a6c33e0cbe352d71
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-16 15:30:19 -07:00
Brad Fitzpatrick
4a82b317b7 ipn/{ipnlocal,localapi}: use strs.CutPrefix, add more domain validation
The GitHub CodeQL scanner flagged the localapi's cert domain usage as a problem
because user input in the URL made it to disk stat checks.

The domain is validated against the ipnstate.Status later, and only
authenticated root/configured users can hit this, but add some
paranoia anyway.

Change-Id: I373ef23832f1d8b3a27208bc811b6588ae5a1ddd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-16 05:52:33 -07:00
Eng Zer Jun
f0347e841f refactor: move from io/ioutil to io and os packages
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.

Reference: https://golang.org/doc/go1.16#ioutil
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2022-09-15 21:45:53 -07:00
Brad Fitzpatrick
74674b110d envknob: support changing envknobs post-init
Updates #5114

Change-Id: Ia423fc7486e1b3f3180a26308278be0086fae49b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-15 15:04:02 -07:00
Brad Fitzpatrick
d34dd43562 ipn/ipnlocal: remove unused envknob
Change-Id: I6d18af2c469eb660e6ca81d1dcc2af33c9e628aa
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-15 11:06:15 -07:00
Brad Fitzpatrick
45a3de14a6 cmd/tailscaled, tailcfg, hostinfo: add flag to disable logging + support
As noted in #5617, our documented method of blocking log.tailscale.io
DNS no longer works due to bootstrap DNS.

Instead, provide an explicit flag (--no-logs-no-support) and/or env
variable (TS_NO_LOGS_NO_SUPPORT=true) to explicitly disable logcatcher
uploads. It also sets a bit on Hostinfo to say that the node is in that
mode so we can end any support tickets from such nodes more quickly.

This does not yet provide an easy mechanism for users on some
platforms (such as Windows, macOS, Synology) to set flags/env. On
Linux you'd used /etc/default/tailscaled typically. Making it easier
to set flags for other platforms is tracked in #5114.

Fixes #5617
Fixes tailscale/corp#1475

Change-Id: I72404e1789f9e56ec47f9b7021b44c025f7a373a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-13 11:47:36 -07:00
Brad Fitzpatrick
f3ce1e2536 util/mak: deprecate NonNil, add type-safe NonNilSliceForJSON, NonNilMapForJSON
And put the rationale in the name too to save the callers the need for a comment.

Change-Id: I090f51b749a5a0641897ee89a8fb2e2080c8b782
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-10 12:19:22 -07:00
Andrew Dunham
b8596f2a2f
net/dnsfallback: cache most recent DERP map on disk (#5545)
This is especially helpful as we launch newer DERPs over time, and older
clients have progressively out-of-date static DERP maps baked in. After
this, as long as the client has successfully connected once, it'll cache
the most recent DERP map it knows about.

Resolves an in-code comment from @bradfitz

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2022-09-05 14:36:30 -04:00
Brad Fitzpatrick
ba3cc08b62 cmd/tailscale/cli: add backwards compatibility 'up' processing for legacy client
Updates tailscale/corp#6781

Change-Id: I843fc810cbec0140d423d65db81e90179d6e0fa5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-01 14:21:48 -07:00
Tom DNetto
be95aebabd tka: implement credential signatures (key material delegation)
This will be needed to support preauth-keys with network lock in the future,
so getting the core mechanics out of the way now.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-31 10:13:13 -07:00
Andrew Dunham
1ac4a26fee
ipn/localapi: send Tailscale version in ACME User-Agent (#5499)
Requested by a friend at Let's Encrypt.

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-08-30 16:48:59 -04:00
Brad Fitzpatrick
761163815c tailcfg: add Hostinfo.Userspace{,Router} bits
Change-Id: Iad47f904872f2df146c1f63945f79cfddeac7fe8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-30 12:39:03 -07:00
Brad Fitzpatrick
c66f99fcdc tailcfg, control/controlclient, ipn/ipnlocal: add c2n (control-to-node) system
This lets the control plane can make HTTP requests to nodes.

Then we can use this for future things rather than slapping more stuff
into MapResponse, etc.

Change-Id: Ic802078c50d33653ae1f79d1e5257e7ade4408fd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-29 15:18:40 -07:00
Nahum Shalman
d20392d413 cmd/tailscale: add emoji for illumos in status subcommand
Signed-off-by: Nahum Shalman <nahamu@gmail.com>
2022-08-28 08:29:31 -07:00
Tom DNetto
79905a1162 tka: make storage a parameter rather than an Authority struct member
Updates #5435

Based on the discussion in #5435, we can better support transactional data models
by making the underlying storage layer a parameter (which can be specialized for
the request) rather than a long-lived member of Authority.

Now that Authority is just an instantaneous snapshot of state, we can do things
like provide idempotent methods and make it cloneable, too.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-26 10:44:28 -07:00
Mihai Parparita
7a5cf39d0d ipn/ipnlocal: fix Taildrop not returning any sharing targets
The CapabilityFileSharingTarget capability added by eb32847d85
is meant to control the ability to share with nodes not owned by the
current user, not to restrict all sharing (the coordination server is
not currently populating the capability at all)

Fixes tailscale/corp#6669

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-08-25 12:47:20 -07:00
Tom DNetto
472529af38 tka: optimize common case of processing updates built from head
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-24 11:35:55 -07:00
Tom DNetto
039def3b50 ipn,tailcfg: transmit NodeID in tka init RPCs
Needed to identify the node. A serverside-check the machine key (used
to authenticate the noise session) is that of the specified NodeID
ensures the authenticity of the request.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-24 11:35:55 -07:00
Tom DNetto
facafd8819 client,cmd/tailscale,ipn,tka,types: implement tka initialization flow
This PR implements the client-side of initializing network-lock with the
Coordination server.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-22 11:35:16 -07:00
Joe Tsai
32a1a3d1c0
util/deephash: avoid variadic argument for Update (#5372)
Hashing []any is slow since hashing of interfaces is slow.
Hashing of interfaces is slow since we pessimistically assume
that cycles can occur through them and start cycle tracking.

Drop the variadic signature of Update and fix callers to pass in
an anonymous struct so that we are hashing concrete types
near the root of the value tree.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-15 11:22:28 -07:00
Brad Fitzpatrick
4ee64681ad tailcfg, control/controlclient: make Debug settings sticky in a map session [capver 37]
Fixes #4843

Change-Id: I3accfd91be474ac745cb47f5d6e866c37d5c5d2d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-09 14:36:09 -07:00
Maisem Ali
486cc9393c ipn/ipnlocal: fix log about local IPs when using exit nodes
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-05 11:45:22 -07:00
Maisem Ali
a9f6cd41fd all: use syncs.AtomicValue
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-04 11:52:16 -07:00
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>
2022-08-04 07:47:59 -07:00
Maisem Ali
9bb5a038e5 all: use atomic.Pointer
Also add some missing docs.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-03 21:42:52 -07:00
Tom DNetto
4001d0bf25 assorted: plumb tka initialization & network-lock key into tailscaled
- A network-lock key is generated if it doesn't already exist, and stored in the StateStore. The public component is communicated to control during registration.
 - If TKA state exists on the filesystem, a tailnet key authority is initialized (but nothing is done with it for now).

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-08-03 14:51:47 -07:00
Brad Fitzpatrick
5f6abcfa6f all: migrate code from netaddr.FromStdAddr to Go 1.18
With caveat https://github.com/golang/go/issues/53607#issuecomment-1203466984
that then requires a new wrapper. But a simpler one at least.

Updates #5162

Change-Id: I0a5265065bfcd7f21e8dd65b2bd74cae90d76090
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-02 22:25:07 -07:00
Maisem Ali
eb32847d85 tailcfg: add CapabilityFileSharingTarget to identify FileTargets
This adds the inverse to CapabilityFileSharingSend so that senders can
identify who they can Taildrop to.

Updates #2101

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-08-02 13:52:10 -07:00
Brad Fitzpatrick
116f55ff66 all: gofmt for Go 1.19
Updates #5210

Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-02 10:08:05 -07:00
Brad Fitzpatrick
eae003e56f ipn/ipnlocal: blend existing host SSH keys + newly-generated types as needed
If the host only has RSA, use its RSA + generate ecdsa + ed25519, etc.

Perhaps fixes https://twitter.com/colek42c/status/1550554439299244032 and
something else that was reported.

Change-Id: I88dc475c8e3d95b6f25288ff7664b8e72655fd16
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-28 11:42:58 -07:00
Brad Fitzpatrick
97b8c4fa1b ipn/store/awsstore: add "ts_omit_aws" build tag to reduce binary size
Drops tailscaled from 23M to 21M.

Change-Id: I731c542d03113ac94abb695e3c8fcacbc5542712
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-27 14:19:33 -07:00
Brad Fitzpatrick
a12aad6b47 all: convert more code to use net/netip directly
perl -i -npe 's,netaddr.IPPrefixFrom,netip.PrefixFrom,' $(git grep -l -F netaddr.)
    perl -i -npe 's,netaddr.IPPortFrom,netip.AddrPortFrom,' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPPrefix,netip.Prefix,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPPort,netip.AddrPort,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IP\b,netip.Addr,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPv6Raw\b,netip.AddrFrom16,g' $(git grep -l -F netaddr. )
    goimports -w .

Then delete some stuff from the net/netaddr shim package which is no
longer neeed.

Updates #5162

Change-Id: Ia7a86893fe21c7e3ee1ec823e8aba288d4566cd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-25 21:53:49 -07:00
Brad Fitzpatrick
6a396731eb all: use various net/netip parse funcs directly
Mechanical change with perl+goimports.

Changed {Must,}Parse{IP,IPPrefix,IPPort} to their netip variants, then
goimports -d .

Finally, removed the net/netaddr wrappers, to prevent future use.

Updates #5162

Change-Id: I59c0e38b5fbca5a935d701645789cddf3d7863ad
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-25 21:12:28 -07:00
Brad Fitzpatrick
7eaf5e509f net/netaddr: start migrating to net/netip via new netaddr adapter package
Updates #5162

Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-25 16:20:43 -07:00
Denton Gentry
f85bb60eba ipn/ipnlocal: prevent attempting to run SSH on QNAP for now
tailscaled runs as a non-root user, SSH is not immediately working.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-07-25 09:45:04 -07:00
Denton Gentry
d17849461c ipn/{ipnserver,ipnlocal}: support incoming Taildrop on QNAP
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-07-22 19:43:47 -07:00
Brad Fitzpatrick
ba91f57ddd ipn/ipnlocal: ignore empty SSH host key files
Change-Id: I332b0d7d01386111d0af4adf98c96c04d3d12fbb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-22 10:52:04 -07:00
Brad Fitzpatrick
227c6b2a53 ipn/ipnlocal: flesh out error on ssh host key parse error
Change-Id: Iedd2d3898befa536181036b9e9dea59bc777a440
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-22 08:09:59 -07:00
Maisem Ali
4d0461f721 ipn/ipnlocal: logout ephemeral nodes on shutdown
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-07-19 11:29:31 -07:00
Brad Fitzpatrick
469c30c33b ipn/localapi: define a cert dir for Synology DSM6
Fixes #4060

Change-Id: I5f145d4f56f6edb14825268e858d419c55918673
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-18 09:51:24 -07:00
Mihai Parparita
e37167b3ef ipn/localapi: add API for uploading client metrics
Clients may have platform-specific metrics they would like uploaded
(e.g. extracted from MetricKit on iOS). Add a new local API endpoint
that allows metrics to be updated by a simple name/value JSON-encoded
struct.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-07-11 09:51:09 -07:00
Mihai Parparita
ec649e707f ipn/ipnlocal: prefer to use one CGNAT route on the Mac
Together with 06aa141632 this minimizes
the number of NEPacketTunnelNetworkSettings updates that we have to do,
and thus avoids Chrome interrupting outstanding requests due to
(perceived) network changes.

Updates #3102

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-06-30 13:18:52 -07:00
Brad Fitzpatrick
aa37aece9c ipn/ipnlocal, net/dns*, util/cloudenv: add AWS DNS support
And remove the GCP special-casing from ipn/ipnlocal; do it only in the
forwarder for *.internal.

Fixes #4980
Fixes #4981

Change-Id: I5c481e96d91f3d51d274a80fbd37c38f16dfa5cb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-29 20:37:44 -07:00
Brad Fitzpatrick
88c2afd1e3 ipn/ipnlocal, net/dns*, util/cloudenv: specialize DNS config on Google Cloud
This does three things:

* If you're on GCP, it adds a *.internal DNS split route to the
  metadata server, so we never break GCP DNS names. This lets people
  have some Tailscale nodes on GCP and some not (e.g. laptops at home)
  without having to add a Tailnet-wide *.internal DNS route.
  If you already have such a route, though, it won't overwrite it.

* If the 100.100.100.100 DNS forwarder has nowhere to forward to,
  it forwards it to the GCP metadata IP, which forwards to 8.8.8.8.
  This means there are never errNoUpstreams ("upstream nameservers not set")
  errors on GCP due to e.g. mangled /etc/resolv.conf (GCP default VMs
  don't have systemd-resolved, so it's likely a DNS supremacy fight)

* makes the DNS fallback mechanism use the GCP metadata IP as a
  fallback before our hosted HTTP-based fallbacks

I created a default GCP VM from their web wizard. It has no
systemd-resolved.

I then made its /etc/resolv.conf be empty and deleted its GCP
hostnames in /etc/hosts.

I then logged in to a tailnet with no global DNS settings.

With this, tailscaled writes /etc/resolv.conf (direct mode, as no
systemd-resolved) and sets it to 100.100.100.100, which then has
regular DNS via the metadata IP and *.internal DNS via the metadata IP
as well. If the tailnet configures explicit DNS servers, those are used
instead, except for *.internal.

This also adds a new util/cloudenv package based on version/distro
where the cloud type is only detected once. We'll likely expand it in
the future for other clouds, doing variants of this change for other
popular cloud environments.

Fixes #4911

RELNOTES=Google Cloud DNS improvements

Change-Id: I19f3c2075983669b2b2c0f29a548da8de373c7cf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-29 17:39:13 -07:00
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>
2022-06-19 22:08:29 -07:00
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>
2022-06-19 21:54:39 -07:00
Brad Fitzpatrick
70a2797064 control/controlclient, ipn/ipnlocal: remove some Client methods
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-19 18:11:59 -07:00
Brad Fitzpatrick
a1e429f7c3 control/controlclient, types/netmap: remove unused LocalPort field
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-19 17:22:00 -07:00
Brad Fitzpatrick
467eb2eca0 cmd/tailscale/cli, ipn/ipnlocal: give SSH tips when off/unconfigured
Updates #3802

Change-Id: I6b9a3175f68a6daa670f912561f2c2ececc07770
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-17 19:37:59 -07:00
Praneet Loke
d8c05fc1b2
Update a Taildrop error message (#4818)
ipn/ipnlocal: update error message on Taildrop send while not connected

Signed-off-by: Praneet <1466314+praneetloke@users.noreply.github.com>
2022-06-08 09:11:50 -07:00
Melanie Warrick
3a182d5dd6
ipn/ipnstate: add ExitNodeStatus to share the exit node if it is in use, the IP, ID and whether its online. (#4761)
-
Updates #4619

Signed-off-by: nyghtowl <warrick@tailscale.com>
2022-06-07 12:31:10 -07:00
Mihai Parparita
27a1ad6a70
wasm: exclude code that's not used on iOS for Wasm too
It has similar size constraints. Saves ~1.9MB from the Wasm build.

Updates #3157

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-06-06 13:52:52 -07:00
Brad Fitzpatrick
4007601f73 cmd/controlclient: wire up PingRequest peerapi pings too
Updates tailscale/corp#754

Change-Id: I61ac3fc44783b54bd02455bcb0baf19159b7a9d2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-06 13:41:34 -07:00
Brad Fitzpatrick
fbc079d82d ipn/ipnlocal: prevent attempting to run SSH on Synology for now
On DSM7 as a non-root user it'll run into problems.

And we haven't tested on DSM6, even though it might work, but I doubt
it.

Updates #3802
Updates tailscale/corp#5468

Change-Id: I75729042e4788f03f9eb82057482a44b319f04f3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-03 13:50:33 -07:00
Brad Fitzpatrick
a9b4bf1535 ipn/ipnserver, cmd/tailscaled: fix peerapi on Windows
We weren't wiring up netstack.Impl to the LocalBackend in some cases
on Windows. This fixes Windows 7 when run as a service.

Updates #4750 (fixes after pull in to corp repo)

Change-Id: I9ce51b797710f2bedfa90545776b7628c7528e99
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-03 12:24:47 -07:00
Jordan Whited
43f9c25fd2
cmd/tailscale: surface authentication errors in status.Health (#4748)
Fixes #3713

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2022-06-03 10:52:07 -07:00
Maisem Ali
928530a112 ipn/ipnlocal: shutdown sshServer on tailscale down
Also lazify SSHServer initialization to allow restarting the server on a
subsequent `tailscale up`

Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-30 15:01:22 +05:00
Brad Fitzpatrick
4d85cf586b cmd/tailscale, ipn/ipnlocal: add "peerapi" ping type
For debugging when stuff like #4750 isn't working.

RELNOTE=tailscale ping -peerapi

Change-Id: I9c52c90fb046e3ab7d2b121387073319fbf27b99
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-28 13:47:12 -07:00
Maisem Ali
7cd8c3e839 ssh/tailssh: terminate sessions when tailscaled shutsdown
Ideally we would re-establish these sessions when tailscaled comes back
up, however we do not do that yet so this is better than leaking the
sessions.

Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-28 21:30:54 +05:00
Joel Cressy
c16271fb46 ipn/localapi: implement LoginInteractive via localapi
Updates: #4738

Signed-off-by: Joel Cressy <joel@jtcressy.net>
2022-05-27 06:34:27 -07:00
Brad Fitzpatrick
cc91a05686 ipn/ipnserver: fix build on js/wasm
Broken by 3dedcd1640 but we don't have CI coverage yet.

Updates #3157

Change-Id: Ie8e95ebd36264887fdeed16fc9f25a857d48124b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-19 15:01:27 -07:00
Brad Fitzpatrick
da601c23e1 ipn/ipnlocal: add missing place where we set the SSH atomic
This fixes the "tailscale up --authkey=... --ssh" path (or any "up"
path that used Start instead of EditPrefs) which wasn't setting the
bit.

Updates #3802

Change-Id: Ifca532ec58296fedcedb5582312dfee884367ed7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-14 12:47:28 -07:00
Maisem Ali
fd99c54e10 tailcfg,all: change structs to []*dnstype.Resolver
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-06 10:58:10 -07:00
Maisem Ali
e409e59a54 cmd/cloner,util/codegen: refactor cloner internals to allow reuse
Also run go generate again for Copyright updates.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-06 10:58:10 -07:00
Brad Fitzpatrick
35111061e9 wgengine/netstack, ipn/ipnlocal: serve http://100.100.100.100/
For future stuff.

Change-Id: I64615b8b2ab50b57e4eef1ca66fa72e3458cb4a9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-06 07:51:28 -07:00
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>
2022-05-03 15:59:19 -07:00
Maisem Ali
c60cbca371 control/controlclient: store netinfo and hostinfo separately
Currently, when SetNetInfo is called it sets the value on
hostinfo.NetInfo. However, when SetHostInfo is called it overwrites the
hostinfo field which may mean it also clears out the NetInfo it had just
received.
This commit stores NetInfo separately and combines it into Hostinfo as
needed so that control is always notified of the latest values.

Also, remove unused copies of Hostinfo from ipn.Status and
controlclient.Auto.

Updates #tailscale/corp#4824 (maybe fixes)

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-03 15:33:01 -07:00
James Tucker
ae483d3446 wgengine, net/packet, cmd/tailscale: add ICMP echo
Updates tailscale/corp#754

Signed-off-by: James Tucker <james@tailscale.com>
2022-05-03 13:03:45 -07:00
Tom DNetto
9dee6adfab cmd/tailscaled,ipn/ipnlocal,wgengine/...: pass dns.Manager into netstack
Needed for a following commit which moves magicDNS handling into
netstack.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-04-30 10:18:59 -07:00
Maisem Ali
3012a2e1ca ssh/tailssh,ipn/ipnlocal: terminate any active sessions on up --ssh=false
Currently the ssh session isn't terminated cleanly, instead the packets
are just are no longer routed to the in-proc SSH server. This makes it
so that clients get a disconnection when the `RunSSH` pref changes to
`false`.

Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-29 16:08:27 -07:00
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>
2022-04-29 15:34:53 -07:00
Mihai Parparita
316523cc1e
ipn: remove enforceDefaults option from PrefsFromBytes
The Mac client was using it, but it had the effect of the `RouteAll`
("Use Tailscale subnets") pref always being enabled at startup,
regardless of the persisted value.

enforceDefaults was added to handle cases from ~2 years ago where
we ended up with persisted `"RouteAll": false` values in the keychain,
but that should no longer be a concern. New users will get the default
of it being enabled via `NewPrefs`.

There will be a corresponding Mac client change to stop passing in
enforceDefaults.

For #3962

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-04-29 14:08:26 -07:00
Maisem Ali
5a1ef1bbb9 net/tsdial: add SystemDial as a wrapper on netns.Dial
The connections returned from SystemDial are automatically closed when
there is a major link change.

Also plumb through the dialer to the noise client so that connections
are auto-reset when moving from cellular to WiFi etc.

Updates #3363

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-27 12:02:36 -07:00
Maisem Ali
637cc1b5fc ipn/ipnlocal/peerapi: add endpoint to list local interfaces
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-27 06:44:58 -07:00
Brad Fitzpatrick
c88506caa6 ipn/ipnlocal: add Wake-on-LAN function to peerapi
No CLI support yet. Just the curl'able version if you know the peerapi
port. (like via a TSMP ping)

Updates #306

Change-Id: I0662ba6530f7ab58d0ddb24e3664167fcd1c4bcf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-26 15:20:59 -07:00
Brad Fitzpatrick
3f7cc3563f ipn: always treat login.tailscale.com as controlplane.tailscale.com
Like 888e50e1, but more aggressive.

Updates #4538 (likely fixes)
Updates #3488

Change-Id: I3924eee9110e47bdba926ce12954253bf2413040
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-26 15:16:32 -07:00
Brad Fitzpatrick
3601b43530 ipn: add IPCVersion override func
I've done this a handful of times in the past and again today.
Time to make it a supported thing for the future.

Used while debugging tailscale/corp#4559 (macsys CLI issues)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-25 20:51:05 -07:00
Maisem Ali
1a19aed410 ipn/ipnlocal: do not initialize peer api listeners when shutting down
Updates tailscale/corp#4824

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-25 11:08:03 -07:00
Brad Fitzpatrick
910ae68e0b util/mak: move tailssh's mapSet into a new package for reuse elsewhere
Change-Id: Idfe95db82275fd2be6ca88f245830731a0d5aecf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-21 21:20:10 -07:00
Brad Fitzpatrick
7a097ccc83 ipn/ipnlocal: close peerapi listeners on LocalBackend.Shutdown
For tests.

Now that we can always listen (whereas we used to fail prior to
a2c330c496), some goroutine leak
checks were failing in tests in another repo after that change.

Change-Id: Id95a4b71167eca61962a48616d79741b9991e0bc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-20 19:25:42 -07:00
Brad Fitzpatrick
a2c330c496 ipn/ipnlocal: use the fake peerapi listener as fallback if netstack available
The previous commit (1b89662eff) this for Android, but we can also use
this on any platform if we we would otherwise fail.

Change-Id: I4cd78b40e9e77fca5cc8e717dd48ac173101bed4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-20 13:41:44 -07:00
Brad Fitzpatrick
1b89662eff ipn/ipnlocal: make peerapi listener on Android avoid the kernel
We intercept the peerapi port in netstack anyway, so there's no reason
the linux kernel on Android needs to know about it. It's only getting
in the way and causing problems for reasons we don't fully understand.
But we don't even need to understand it because it's not relevant
anymore.

Instead, provide a dummy net.Listener that just sits and blocks to
pacify the rest of the code that assumes it can be stuck in a
Listener.Accept call and call Listener.Close and Listener.Addr.

We'll likely do this for all platforms in the future, if/when we also
link in netstack on iOS.

Updates #4449
Updates #4293
Updates #3986

Change-Id: Ic2d3fe2f3cee60fc527356a3368830f17aeb75ae
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-20 12:31:12 -07:00
Brad Fitzpatrick
8b81254992 ipn/ipnlocal: reject tailscale up --ssh if disabled on tailnet
Updates #3802

Change-Id: I3f1e839391fe9b28270f506f4bb8d8e3d36716f5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-20 11:38:27 -07:00
Brad Fitzpatrick
cc575fe4d6 net/dns: schedule DoH upgrade explicitly, fix Resolver.Addr confusion
Two changes in one:

* make DoH upgrades an explicitly scheduled send earlier, when we come
  up with the resolvers-and-delay send plan. Previously we were
  getting e.g.  four Google DNS IPs and then spreading them out in
  time (for back when we only did UDP) but then later we added DoH
  upgrading at the UDP packet layer, which resulted in sometimes
  multiple DoH queries to the same provider running (each doing happy
  eyeballs dialing to 4x IPs themselves) for each of the 4 source IPs.
  Instead, take those 4 Google/Cloudflare IPs and schedule 5 things:
  first the DoH query (which can use all 4 IPs), and then each of the
  4 IPs as UDP later.

* clean up the dnstype.Resolver.Addr confusion; half the code was
  using it as an IP string (as documented) as half was using it as
  an IP:port (from some prior type we used), primarily for tests.
  Instead, document it was being primarily an IP string but also
  accepting an IP:port for tests, then add an accessor method on it
  to get the IPPort and use that consistently everywhere.

Change-Id: Ifdd72b9e45433a5b9c029194d50db2b9f9217b53
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-19 12:00:22 -07:00
Maisem Ali
a04eebf59f ipn/ipnlocal: also use SSHPolicies when updating filterHash
Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-18 16:34:06 -07:00
Brad Fitzpatrick
e96dd00652 ipn/ipnlocal: add capability for debugging peers over peerapi
The default is still users can debug their own nodes. But like
cd916b728b did, this adds support for admins to grant additional
capabilities with the new tailcfg.CapabilityDebugPeer cap.

Updates #4217

Change-Id: Ifce3d9a1f8e8845797970a4f97b393194663d35f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-18 10:21:42 -07:00
Brad Fitzpatrick
8f5e5bff1e cmd/tailscale, etc: make "tailscale up --ssh" fail fast when unavailable
Fail on unsupported platforms (must be Linux or macOS tailscaled with
WIP env) or when disabled by admin (with TS_DISABLE_SSH_SERVER=1)

Updates #3802

Change-Id: I5ba191ed0d8ba4ddabe9b8fc1c6a0ead8754b286
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-18 09:45:46 -07:00
Brad Fitzpatrick
ade7bd8745 ssh/tailssh: close sessions on policy change if no longer allowed
Updates #3802

Change-Id: I98503c2505b77ac9d0cc792614fcdb691761a70c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-17 15:29:44 -07:00
Brad Fitzpatrick
4ec83fbad6 ipn/ipnlocal: only call updateFilter with mutex held
And rename to updateFilterLocked to prevent future mistakes.

Fixes #4427

Change-Id: I4d37b90027d5ff872a339ce8180f5723704848dc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-17 15:29:24 -07:00
Brad Fitzpatrick
cd916b728b ipn/ipnlocal: add start of inter-user Taildrop
Controlled by server-sent capability policy.

To be initially used for SSH servers to record sessions to other
nodes. Not yet productized into something user-accessible. (Notably,
the list of Taildrop targets from the sender side isn't augmented
yet.) This purely permits expanding the set of expands a node will
accept a drop from.

Updates #3802
Updates #4217

Change-Id: Id7a5bccd686490f8ef2cdc7dae7c07c440dc0085
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-17 10:07:07 -07:00
Brad Fitzpatrick
16f3520089 all: add arbitrary capability support
Updates #4217

RELNOTE=start of WhoIsResponse capability support

Change-Id: I6522998a911fe49e2f003077dad6164c017eed9b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-17 09:01:53 -07:00
James Tucker
c591c91653 tailcfg, control/controlclient: TSMP & disco pings
tailcfg.PingResponse formalizes the TSMP & disco response message, and
controlclient is wired to send POST responses containing
tailcfg.PingResponse for TSMP and disco PingRequests.

Updates tailscale/corp#754

Signed-off-by: James Tucker <james@tailscale.com>
2022-04-15 22:36:51 -07:00
Brad Fitzpatrick
8ee044ea4a ssh/tailssh: make the SSH server a singleton, register with LocalBackend
Remove the weird netstack -> tailssh dependency and instead have tailssh
register itself with ipnlocal when linked.

This makes tailssh.server a singleton, so we can have a global map of
all sessions.

Updates #3802

Change-Id: Iad5caec3a26a33011796878ab66b8e7b49339f29
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-15 13:45:39 -07:00
Brad Fitzpatrick
df9ce972c7 tailcfg, ipn/ipnlocal: add debug flag to enable one-big-CGNAT/10 route
To experiment with avoiding Chrome ERR_NETWORK_CHANGED errors on route
changes.

Updates #3102

Change-Id: I339da14c684fdac45ac261566aa21bf2198672ff
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-14 14:47:42 -07:00
Maisem Ali
50b4b8b2c6 ipn/ipnlocal: make peerIPs return a sorted slice
Currently peerIPs doesn't do any sorting of the routes it returns. This
is typically fine, however imagine the case of an HA subnet router
failover. When a route R moves from peer A to peer B, the output of
peerIPs changes. This in turn causes all the deephash check inside
wgengine to fail as the hashed value of [R1, R2] is different than
the hashed value of [R2, R1]. When the hash check failes, it causes
wgengine to reconfigure all routes in the OS. This is especially
problematic for macOS and iOS where we use the NetworkExtension.

This commit makes it that the peerIPs are always sorted when returned,
thus making the hash be consistent as long as the list of routes remains
static.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-13 16:30:17 -07:00
Ilya Mateyko
2748750aa2 ipn/ipnstate: make status page more mobile-friendly
Signed-off-by: Ilya Mateyko <me@astrophena.name>
2022-04-12 12:33:31 -07:00
Maisem Ali
c87ed52ad4 cmd/tailscale: add id-token subcommand
RELNOTE=Initial support for getting OIDC ID Tokens

Updates tailscale/corp#4347

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-12 12:04:04 -07:00
Brad Fitzpatrick
3ae701f0eb net/tsaddr, wgengine/netstack: add IPv6 range that forwards to site-relative IPv4
This defines a new magic IPv6 prefix, fd7a:115c:a1e0:b1a::/64, a
subset of our existing /48, where the final 32 bits are an IPv4
address, and the middle 32 bits are a user-chosen "site ID". (which
must currently be 0000:00xx; the top 3 bytes must be zero for now)

e.g., I can say my home LAN's "site ID" is "0000:00bb" and then
advertise its 10.2.0.0/16 IPv4 range via IPv6, like:

    tailscale up --advertise-routes=fd7a:115c:a1e0:b1a::bb:10.2.0.0/112

(112 being /128 minuse the /96 v6 prefix length)

Then people in my tailnet can:

     $ curl '[fd7a:115c:a1e0:b1a::bb:10.2.0.230]'
     <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ....

Updates #3616, etc

RELNOTE=initial support for TS IPv6 addresses to route v4 "via" specific nodes

Change-Id: I9b49b6ad10410a24b5866b9fbc69d3cae1f600ef
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-11 17:26:07 -07:00
Maisem Ali
3603a18710 ipn/localapi: add endpoint to request id token
Updates tailscale/corp#4347

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-05 14:48:45 -07:00
Maisem Ali
309ddef852
net/netutil: add CheckIPForwardingLinux (#4301)
Combine the code between `LocalBackend.CheckIPForwarding` and
`controlclient.ipForwardingBroken`.

Fixes #4300

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-03-28 10:24:11 -07:00
Brad Fitzpatrick
5a44f9f5b5 tempfork: temporarily fork gliderlabs/ssh and x/crypto/ssh
While we rearrange/upstream things.

gliderlabs/ssh is forked into tempfork from our prior fork
at be8b7add40

x/crypto/ssh OTOH is forked at
https://github.com/tailscale/golang-x-crypto because it was gnarlier
to vendor with various internal packages, etc.
Its git history shows where it starts (2c7772ba30643b7a2026cbea938420dce7c6384d).

Updates #3802

Change-Id: I546e5cdf831cfc030a6c42557c0ad2c58766c65f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-26 21:07:01 -07:00
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>
2022-03-26 20:23:50 -07:00
Brad Fitzpatrick
cceacda5eb ipn/ipnstate: put SSH Host Keys in ipnstate.PeerStatus
Updates #3802

Change-Id: I47ba3b4545b25988f375bd867aecd98bb0da8d79
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-25 12:14:39 -07:00
Brad Fitzpatrick
fc12cbfcd3 client/tailscale, cmd/tailscale, localapi: add 'tailscale nc'
This adds a "tailscale nc" command that acts a bit like "nc", but
dials out via tailscaled via localapi.

This is a step towards a "tailscale ssh", as we'll use "tailscale nc"
as a ProxyCommand for in some cases (notably in userspace mode).

But this is also just useful for debugging & scripting.

Updates #3802

RELNOTE=tailscale nc

Change-Id: Ia5c37af2d51dd0259d5833d80264d3ad5f68446a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-24 10:28:53 -07:00
Brad Fitzpatrick
d2f3ec8a63 envknob, ipn/ipnlocal: add SSH admin kill switch
Updates #3802

Change-Id: I6127907446d1a6be1b097d9ba3b534f2b8eb707f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-23 15:40:30 -07:00
Brad Fitzpatrick
f3b13604b3 control/controlclient, ipn/ipnlocal, tailcfg: add MapResponse.PopBrowserURL
Updates #3802

Change-Id: I89481fc5782a0cc8084354706f8f28d94f197325
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-22 09:37:00 -07:00
Josh Bleecher Snyder
0868329936 all: use any instead of interface{}
My favorite part of generics.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-17 11:35:09 -07:00
Maisem Ali
6b9d938c1a types/views: add generic Slice[T] and remove StringSlice
Also make IPPrefixSliceOf use Slice[netaddr.IPPrefix] as it also
provides additional functions besides the standard ones provided by
Slice[T].

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-03-16 22:13:16 -07:00
Brad Fitzpatrick
61ee72940c all: use Go 1.18's strings.Cut
More remain.

Change-Id: I6ec562cc1f687600758deae1c9d7dbd0d04004cb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-16 14:53:59 -07:00
Josh Bleecher Snyder
9482576bb1 ipn/ipnserver: use strings.Cut
We now require Go 1.18.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-16 12:45:28 -07:00
Brad Fitzpatrick
efc48b0578 ssh/tailssh, ipnlocal, controlclient: fetch next SSHAction from network
Updates #3802

Change-Id: I08e98805ab86d6bbabb6c365ed4526f54742fd8e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-10 13:41:08 -08:00
Aaron Klotz
f8a4df66de cmd/tailscale/cli, ipn: move exit node IP parsing and validation from cli into prefs.
We need to be able to provide the ability for the GUI clients to resolve and set
the exit node IP from an untrusted string, thus enabling the ability to specify
that information via enterprise policy.

This patch moves the relevant code out of the handler for `tailscale up`,
into a method on `Prefs` that may then be called by GUI clients.

We also update tests accordingly.

Updates https://github.com/tailscale/corp/issues/4239

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-03-10 10:51:05 -07:00
Maisem Ali
888e50e1f6 ipn/ipnlocal: migrate all platforms to controlplane.tailscale.com
Updates #3488

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-03-09 21:14:06 -08:00
Nick O'Neill
1625e87526
control/controlclient, localapi: shorten expiry time via localapi (#4112)
Signed-off-by: Nick O'Neill <nick@tailscale.com>
2022-03-09 14:42:42 -08:00
Brad Fitzpatrick
d5f8f38ac6 tailcfg: rename map request version to "capability version"
And add a CapabilityVersion type, primarily for documentation.

This makes MapRequest.Version, RegisterRequest.Version, and
SetDNSRequest.Version all use the same version, which will avoid
confusing in the future if Register or SetDNS ever changed their
semantics on Version change. (Currently they're both always 1)

This will requre a control server change to allow a
SetDNSRequest.Version value other than 1 to be deployed first.

Change-Id: I073042a216e0d745f52ee2dbc45cf336b9f84b7c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-06 14:29:08 -08:00
Brad Fitzpatrick
b493ef5b71 net/tsaddr: add func ContainsExitRoutes
Change-Id: I772441a406083e2fe0f9374b2b23d89aac18928f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-04 08:56:06 -08:00
Maisem Ali
518f6cee63 ipn/store: [TestNewStore] do not use an empty file
Otherwise it would log warnings about an empty file.
```
    stores.go:138: store.NewFileStore("/tmp/3777352782"): file empty; treating it like a missing file [warning]
```

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-28 18:26:24 -08:00
Maisem Ali
497324ddf6 ipn/store: add common package for instantiating ipn.StateStores
Also move KubeStore and MemStore into their own package.

RELNOTE: tsnet now supports providing a custom ipn.StateStore.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-28 13:23:33 -08:00
Brad Fitzpatrick
c9eca9451a ssh: make it build on darwin
For local dev testing initially. Product-wise, it'll probably only be
workable on the two unsandboxed builds.

Updates #3802

Change-Id: Ic352f966e7fb29aff897217d79b383131bf3f92b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-24 13:00:45 -08:00
Brad Fitzpatrick
c4a6d9fa5d ipn/ipnlocal: generate tailscaled-owned SSH keys as needed
Updates #3802

Change-Id: Ie1bc9ae3f3639603b88b4e19b7eb12bea528ff77
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-24 12:15:57 -08:00
Brad Fitzpatrick
bb94561c96 net/netutil: fix regression where peerapi would get closed after 1st req
I introduced a bug in 8fe503057d when unifying oneConnListener
implementations.

The NewOneConnListenerFrom API was easy to misuse (its Close method
closes the underlying Listener), and we did (via http.Serve, which
closes the listener after use, which meant we were close the peerapi's
listener, even though we only wanted its Addr)

Instead, combine those two constructors into one and pass in the Addr
explicitly, without delegating through to any Listener.

Change-Id: I061d7e5f842e0cada416e7b2dd62100d4f987125
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-22 13:52:18 -08:00
Maisem Ali
c7a8f0992d ipn/ipnlocal: use views for Peer.PrimaryRoutes and Peer.Tags
RELNOTE=`tailscale status --json` now shows Tags and PrimaryRoutes

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-22 10:09:02 -08:00
Maisem Ali
9cbb0913be ipn/{ipnlocal,ipnstate}: add Tags and PrimaryRoutes to PeerStatus
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-21 20:06:48 -08:00
Brad Fitzpatrick
d19a63ddf6 ipn/localapi: treat ACME "invalid" state as terminal, log more
Fixes #3975

Change-Id: Idb2cc8d4730e140939898c7dcc15c2014acca142
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-19 16:22:58 -08:00
Brad Fitzpatrick
de72a1f9fc ipn/ipnserver: let TS_PERMIT_CERT_UID contain a username too, not just uid
Don't make users map their system's "caddy" (or whatever) system user
to its userid. We can do that. Support either a uid or a username.

RELNOTE=TS_PERMIT_CERT_UID can contain a uid or username

Change-Id: I7451b537a5e118b818addf1353882291d5f0d07f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-19 16:22:43 -08:00
Maisem Ali
f9a50779e2 cmd/tailscaled: add -state=mem: to support creation of an ephemeral node.
RELNOTE=`tailscaled --state=mem:` registers as an ephemeral node and
does not store state to disk.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-18 13:40:39 -08:00
Brad Fitzpatrick
84138450a4 types/logger, logtail: add mechanism to do structured JSON logs
e.g. the change to ipnlocal in this commit ultimately logs out:

{"logtail":{"client_time":"2022-02-17T20:40:30.511381153-08:00","server_time":"2022-02-18T04:40:31.057771504Z"},"type":"Hostinfo","val":{"GoArch":"amd64","Hostname":"tsdev","IPNVersion":"1.21.0-date.20220107","OS":"linux","OSVersion":"Debian 11.2 (bullseye); kernel=5.10.0-10-amd64"},"v":1}

Change-Id: I668646b19aeae4a2fed05170d7b279456829c844
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-18 12:42:06 -08:00
Brad Fitzpatrick
bb93e29d5c tailcfg, ipn/ipnlocal: add Hostinfo.SSH_HostKeys, send when SSH enabled
(The name SSH_HostKeys is bad but SSHHostKeys is worse.)

Updates #3802

Change-Id: I2a889019c9e8b065b668dd58140db4fcab868a91
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-17 15:46:57 -08:00
Brad Fitzpatrick
fbff1555fc ipnlocal, tailssh: start moving host key stuff into the right spot
Make tailssh ask LocalBackend for the SSH hostkeys, as we'll need to
distribute them to peers.

For now only the hacky use-same-as-actual-host mode is implemented.

Updates #3802

Change-Id: I819dcb25c14e42e6692c441186c1dc744441592b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-17 14:01:50 -08:00
Maisem Ali
72d8672ef7 tailcfg: make Node.Hostinfo a HostinfoView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-16 12:55:57 -08:00
Ross Zurowski
6d02a48d8d
ipn: add TailnetStatus field to tailscale status --json (#3865)
We need to capture some tailnet-related information for some Docker
features we're building. This exposes the tailnet name and MagicDNS
information via `tailscale status --json`.

Fixes tailscale/corp#3670

Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
2022-02-15 12:36:01 -05:00
Brad Fitzpatrick
01e8a152f7 ipn/ipnlocal: log most of Hostinfo once non-verbose at start-up
Our previous Hostinfo logging was all as a side effect of telling
control. And it got marked as verbose (as it was)

This adds a one-time Hostinfo logging that's not verbose, early in
start-up.

Change-Id: I1896222b207457b9bb12ffa7cf361761fa4d3b3a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-14 12:33:35 -08:00
Brad Fitzpatrick
8fe503057d net/netutil: unify two oneConnListeners into a new package
I was about to add a third copy, so unify them now instead.

Change-Id: I3b93896aa1249b1250a6b1df4829d57717f2311a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-13 14:57:27 -08:00
Brad Fitzpatrick
a19c110dd3 envknob: track, log env knobs in use
Fixes #3921

Change-Id: I8186053b5c09c43f0358b4e7fdd131361a6d8f2e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-12 21:56:10 -08:00
Brad Fitzpatrick
2db6cd1025 ipn/ipnlocal, wgengine/magicsock, logpolicy: quiet more logs
Updates #1548

Change-Id: Ied169f872e93be2857890211f2e018307d4aeadc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-12 16:42:29 -08:00
Brad Fitzpatrick
86a902b201 all: adjust some log verbosity
Updates #1548

Change-Id: Ia55f1b5dc7dfea09a08c90324226fb92cd10fa00
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-12 08:51:16 -08:00
Aaron Klotz
d7962e3bcf ipn/ipnserver, util/winutil: update workaround for os/user.LookupId failures on Windows to reject SIDs from deleted/invalid security principals.
Our current workaround made the user check too lax, thus allowing deleted
users. This patch adds a helper function to winutil that checks that the
uid's SID represents a valid Windows security principal.

Now if `lookupUserFromID` determines that the SID is invalid, we simply
propagate the error.

Updates https://github.com/tailscale/tailscale/issues/869

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-02-02 15:01:28 -07:00
Brad Fitzpatrick
bd90781b34 ipn/ipnlocal, wgengine/netstack: use netstack for peerapi server
We're finding a bunch of host operating systems/firewalls interact poorly
with peerapi. We either get ICMP errors from the host or users need to run
commands to allow the peerapi port:

https://github.com/tailscale/tailscale/issues/3842#issuecomment-1025133727

... even though the peerapi should be an internal implementation detail.

Rather than fight the host OS & firewalls, this change handles the
server side of peerapi entirely in netstack (except on iOS), so it
never makes its way to the host OS where it might be messed with. Two
main downsides are:

1) netstack isn't as fast, but we don't really need speed for peerapi.
   And actually, with fewer trips to/from the kernel, we might
   actually make up for some of the netstack performance loss by
   staying in userspace.

2) tcpdump / Wireshark etc packet captures will no longer see the peerapi
   traffic. Oh well. Crawshaw's been wanting to add packet capture server
   support to tailscaled, so we'll probably do that sooner now.

A future change might also then use peerapi for the client-side
(except on iOS).

Updates #3842 (probably fixes, as well as many exit node issues I bet)

Change-Id: Ibc25edbb895dc083d1f07bd3cab614134705aa39
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-31 14:20:08 -08:00
Brad Fitzpatrick
857cd6c0d7 ipn/ipnstate: add TailnetName to status
RELNOTE=tailscale status --json | jq .TailnetName

Fixes tailscale/corp#3665

Change-Id: I85de027ba2781eb31ee1e0c5ab913b0dfa5b4c86
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-26 10:08:39 -08:00
Brad Fitzpatrick
ca774c3249 ipn/ipnserver: add TS_PERMIT_CERT_UID envknob to give webservers cert access
So you can run Caddy etc as a non-root user and let it have access to
get certs.

Updates caddyserver/caddy#4541

Change-Id: Iecc5922274530e2b00ba107d4b536580f374109b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-25 12:12:41 -08:00
Brad Fitzpatrick
f3c0023add wgengine/netstack: add an SSH server experiment
Disabled by default.

To use, run tailscaled with:

    TS_SSH_ALLOW_LOGIN=you@bar.com

And enable with:

    $ TAILSCALE_USE_WIP_CODE=true tailscale up --ssh=true

Then ssh [any-user]@[your-tailscale-ip] for a root bash shell.
(both the "root" and "bash" part are temporary)

Updates #3802

Change-Id: I268f8c3c95c8eed5f3231d712a5dc89615a406f0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-24 19:14:13 -08:00
Brad Fitzpatrick
41fd4eab5c envknob: add new package for all the strconv.ParseBool(os.Getenv(..))
A new package can also later record/report which knobs are checked and
set. It also makes the code cleaner & easier to grep for env knobs.

Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-24 11:51:23 -08:00
Brad Fitzpatrick
b03170b901 ipn/ipnserver: provide means of setting debug env vars on Windows
Fixes #3688

Change-Id: I2f88ca32bf764e2b084fe544d821c43b6a20ffa5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-10 10:48:18 -08:00
Brad Fitzpatrick
e68d87eb44 ipn: rename SetRunExitNode to SetAdvertiseExitNode
From Maisem's code review feedback where he mashed the merge
button by mistake.

Change-Id: I55abce036a6c25dc391250514983125dda10126c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-06 16:17:03 -08:00
Brad Fitzpatrick
2cfc96aa90 ipn: add methods on Prefs to get/set exit node being advertised
This code was copied in a few places (Windows, Android), so unify it
and add tests.

Change-Id: Id0510c0f5974761365a2045279d1fb498feca11e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-06 16:14:14 -08:00
Brad Fitzpatrick
3690bfecb0 ipn/ipnlocal: fix cert fetching on macOS GUI platforms
And clarify the directory they get written to when under the sandbox.

Fixes #3667

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-06 07:59:20 -08:00
Brad Fitzpatrick
506c727e30 ipnlocal, net/{dns,tsaddr,tstun}, wgengine: support MagicDNS on IPv6
Fixes #3660

RELNOTE=MagicDNS now works over IPv6 when CGNAT IPv4 is disabled.

Change-Id: I001e983df5feeb65289abe5012dedd177b841b45
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-04 14:37:22 -08:00
Brad Fitzpatrick
b09000ad5d ipn/localapi: add debug handler to Rebind, ReSTUN magicsock
And more later probably.

Updates #3619

Change-Id: Ia4cba34a7c0dcce4d2eddec8aae17f32b51c207f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-28 15:13:44 -08:00
Brad Fitzpatrick
0aa4c6f147 net/dns/resolver: add debug HTML handler to see what DNS traffic was forwarded
Change-Id: I6b790e92dcc608515ac8b178f2271adc9fd98f78
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-21 14:32:36 -08:00
Brad Fitzpatrick
ae319b4636 wgengine/magicsock: add HTML debug handler to see magicsock state
Change-Id: Ibc46f4e9651e1c86ec6f5d139f5e9bdc7a488415
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-21 14:26:52 -08:00
Brad Fitzpatrick
3dedcd1640 logpolicy, ipn/ipnserver: connect to logtail via tailscaled when needed
This is for use by the Windows GUI client to log via when an
exit node is in use, so the logs don't go out via the exit node and
instead go directly, like tailscaled's. The dialer tried to do that
in the unprivileged GUI by binding to a specific interface, but the
"Internet Kill Switch" installed by tailscaled for exit nodes
precludes that from working and instead the GUI fails to dial out.
So, go through tailscaled (with a CONNECT request) instead.

Fixes tailscale/corp#3169

Change-Id: I17a8efdc1d4b8fed53a29d1c19995592b651b215
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-17 14:40:26 -08:00
Brad Fitzpatrick
40e2b312b6 ipn/ipnserver, logpolicy: move Windows disk logging up earlier
This moves the Windows-only initialization of the filelogger into
logpolicy. Previously we only did it when babysitting the tailscaled
subprocess, but this meant that log messages from the service itself
never made it to disk. Examples that weren't logged to disk:

* logtail unable to dial out,
* DNS flush messages from the service
* svc.ChangeRequest messages (#3581)

This is basically the same fix as #3571 but staying in the Logf type,
and avoiding build-tagged file (which wasn't quite a goal, but
happened and seemed nice)

Fixes #3570

Co-authored-by: Aaron Klotz <aaron@tailscale.com>
Change-Id: Iacd80c4720b7218365ec80ae143339d030842702
2021-12-16 12:33:04 -08:00
Josh Bleecher Snyder
add6dc8ccc ipn/ipnlocal: make TestShrinkDefaultRoute hermetic
Make shrinkDefaultRoute a pure function.
Instead of calling interfaceRoutes, accept that information as parameters.
Hard-code those parameters in TestShrinkDefaultRoute.

Fixes #3580

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-12-16 11:31:20 -08:00
Brad Fitzpatrick
8f43ddf1a2 ipn/ipnlocal, health: populate self node's Online bit in tailscale status
One option was to just hide "offline" in the text output, but that
doesn't fix the JSON output.

The next option was to lie and say it's online in the JSON (which then
fixes the "offline" in the text output).

But instead, this sets the self node's "Online" to whether we're in an
active map poll.

Fixes #3564

Change-Id: I9b379989bd14655198959e37eec39bb570fb814a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-16 10:14:08 -08:00
Josh Bleecher Snyder
93ae11105d ipn/ipnlocal: clear magicsock's netmap on logout
magicsock was hanging onto its netmap on logout,
which caused tailscale status to display partial
information about a bunch of zombie peers.
After logout, there should be no peers.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-12-15 17:00:08 -08:00
Brad Fitzpatrick
aac974a5e5 ipn/ipnlocal: deflake (mostly) TestStateMachine
I'm sick of this flaking. Even if this isn't the right fix, it
stops the alert fatigue.

Updates #3020

Change-Id: I4001c127d78f1056302f7741adec34210a72ee61
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-15 13:41:06 -08:00
Brad Fitzpatrick
486059589b all: gofmt -w -s (simplify) tests
And it updates the build tag style on a couple files.

Change-Id: I84478d822c8de3f84b56fa1176c99d2ea5083237
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-15 08:43:41 -08:00
Brad Fitzpatrick
cced414c7d net/dns/resolver: add Windows ExitDNS service support, using net package
Updates #1713
Updates #835

Change-Id: Ia71e96d0632c2d617b401695ad68301b07c1c2ec
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-10 20:47:17 -08:00
Josh Bleecher Snyder
63cd581c3f safesocket: add ConnectionStrategy, provide control over fallbacks
fee2d9fad added support for cmd/tailscale to connect to IPNExtension.
It came in two parts: If no socket was provided, dial IPNExtension first,
and also, if dialing the socket failed, fall back to IPNExtension.

The second half of that support caused the integration tests to fail
when run on a machine that was also running IPNExtension.
The integration tests want to wait until the tailscaled instances
that they spun up are listening. They do that by dialing the new
instance. But when that dial failed, it was falling back to IPNExtension,
so it appeared (incorrectly) that tailscaled was running.
Hilarity predictably ensued.

If a user (or a test) explicitly provides a socket to dial,
it is a reasonable assumption that they have a specific tailscaled
in mind and don't want to fall back to IPNExtension.
It is certainly true of the integration tests.

Instead of adding a bool to Connect, split out the notion of a
connection strategy. For now, the implementation remains the same,
but with the details hidden a bit. Later, we can improve that.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-12-09 15:46:38 -08:00
Brad Fitzpatrick
7b9c7bc42b ipn/ipnstate: remove old deprecated TailAddr IPv4-only field
It's been a bunch of releases now since the TailscaleIPs slice
replacement was added.

Change-Id: I3bd80e1466b3d9e4a4ac5bedba8b4d3d3e430a03
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-09 09:28:23 -08:00
Denton Gentry
878a20df29 net/dns: add GetBaseConfig to CallbackRouter.
Allow users of CallbackRouter to supply a GetBaseConfig
implementation. This is expected to be used on Android,
which currently lacks both a) platform support for
Split-DNS and b) a way to retrieve the current DNS
servers.

iOS/macOS also use the CallbackRouter but have platform
support for SplitDNS, so don't need getBaseConfig.

Updates https://github.com/tailscale/tailscale/issues/2116
Updates https://github.com/tailscale/tailscale/issues/988

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2021-12-08 16:49:11 -08:00
Brad Fitzpatrick
c0701b130d ipn/ipnstate, cmd/tailscale: add Online bool to tailscale status & --json
Fixes #3533

Change-Id: I2f6f0d712cf3f987fba1c15be74cdb5c8d565f04
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-08 09:34:15 -08:00
Todd Neal
c18dc57861 ipn/{ipnserver,ipnlocal}: support incoming Taildrop on TrueNAS
Signed-off-by: Todd Neal <todd@tneal.org>
2021-12-07 21:04:58 -08:00
Brad Fitzpatrick
d3d503d997 ipn/ipnlocal: add HTTP/2 h2c server support to peerapi on non-mobile platforms
To make ExitDNS cheaper.

Might not finish client-side support in December before 1.20, but at
least server support can start rolling out ahead of clients being
ready for it.

Tested with curl against peerapi.

Updates #1713

Change-Id: I676fed5fb1aef67e78c542a3bc93bddd04dd11fe
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-06 16:39:14 -08:00
Brad Fitzpatrick
abc00e9c8d ipn/{ipnserver,ipnlocal}: support incoming Taildrop on Synology
If the user has a "Taildrop" shared folder on startup and
the "tailscale" system user has read/write access to it,
then the user can "tailscale file cp" to their NAS.

Updates #2179 (would be fixes, but not super ideal/easy yet)

Change-Id: I68e59a99064b302abeb6d8cc84f7d2a09f764990
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-06 16:36:24 -08:00
Brad Fitzpatrick
9c5c9d0a50 ipn/ipnlocal, net/tsdial: make SOCKS/HTTP dials use ExitDNS
And simplify, unexport some tsdial/netstack stuff in the the process.

Fixes #3475

Change-Id: I186a5a5cbd8958e25c075b4676f7f6e70f3ff76e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-03 13:39:37 -08:00
Brad Fitzpatrick
9f6249b26d ipn/policy: treat DNS service as interesting so it's not filtered out
The control plane is currently still eating it.

Updates #1713

Change-Id: I66a0698599d6794ab1302f9585bf29e38553c884
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-03 12:55:54 -08:00
Brad Fitzpatrick
adc5997592 net/tsdial: give netstack a Dialer, start refactoring name resolution
This starts to refactor tsdial.Dialer's name resolution to have
different stages: in-memory MagicDNS vs system resolution. A future
change will plug in ExitDNS resolution.

This also plumbs a Dialer into netstack and unexports the dnsMap
internals.

And it removes some of the async AddNetworkMapCallback usage and
replaces it with synchronous updates of the Dialer's netmap
from LocalBackend, since the LocalBackend has the Dialer too.

Updates #3475

Change-Id: Idcb7b1169878c74f0522f5151031ccbc49fe4cb4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-02 11:33:13 -08:00
Brad Fitzpatrick
43983a4a3b ipn/ipnlocal: run peerapi even if Taildrop storage not configured
Change-Id: I77f9ecbe4617d01d13aa1127fa59c83f2aa3e1b8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-01 16:45:09 -08:00
David Anderson
44d0c1ab06 ipn/ipnlocal: resolve exit node IP to ID at EditPrefs time.
Without this, enabling an exit node immediately blackholes all traffic,
but doesn't correctly let it flow to the exit node until the next netmap
update.

Fixes #3447

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-12-01 15:50:32 -08:00
Brad Fitzpatrick
ad3d6e31f0 net/tsdial: move macOS/iOS peerapi sockopt logic from LocalBackend
Change-Id: I812cae027c40c70cdc701427b1a1850cd9bcd60c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-01 12:55:31 -08:00
Brad Fitzpatrick
c7fb26acdb net/tsdial: also plumb TUN name and monitor into tsdial.Dialer
In prep for moving stuff out of LocalBackend.

Change-Id: I9725aa9c3ebc7275f8c40e040b326483c0340127
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-01 10:36:55 -08:00
Brad Fitzpatrick
c37af58ea4 net/tsdial: move more weirdo dialing into new tsdial package, plumb
Not done yet, but this move more of the outbound dial special casing
from random packages into tsdial, which aspires to be the one unified
place for all outbound dialing shenanigans.

Then this plumbs it all around, so everybody is ultimately
holding on to the same dialer.

As of this commit, macOS/iOS using an exit node should be able to
reach to the exit node's DoH DNS proxy over peerapi, doing the sockopt
to stay within the Network Extension.

A number of steps remain, including but limited to:

* move a bunch more random dialing stuff

* make netstack-mode tailscaled be able to use exit node's DNS proxy,
  teaching tsdial's resolver to use it when an exit node is in use.

Updates #1713

Change-Id: I1e8ee378f125421c2b816f47bc2c6d913ddcd2f5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-12-01 10:36:55 -08:00
Brad Fitzpatrick
3ae6f898cf ipn/ipnlocal, net/dns/resolver: use exit node's DoH proxy when available
Updates #1713

Change-Id: I3695a40ec12d2b4e6dac41cf4559daca6dddd68e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-30 17:01:09 -08:00
Brad Fitzpatrick
16abd7e07c ipn/ipnlocal: fix Content-Length in DoH DNS proxy response
Updates #1713

Change-Id: I912d90383b751ad97b32bcec55e8fedbcf4d3db8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-30 17:01:09 -08:00
Brad Fitzpatrick
2a95ee4680 cmd/tailscale, ipn/ipnstate: note which nodes are exit nodes in status
Fixes #3446

Change-Id: Ib41d588e7fa434c02d134fa449f85b0e15083683
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-30 16:59:23 -08:00
Brad Fitzpatrick
3181bbb8e4 cmd/tailscale: make file cp send files via tailscaled localapi
So Taildrop sends work even if the local tailscaled is running in
netstack mode, as it often is on Synology, etc.

Updates #2179 (which is primarily about receiving, but both important)

Change-Id: I9bd1afdc8d25717e0ab6802c7cf2f5e0bd89a3b2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-30 11:47:27 -08:00
Brad Fitzpatrick
b811a316bc tailcfg, ipn/ipnlocal: advertise a Service when exit node DNS proxy available
Updates #1713

Change-Id: I20c8e2ad1062d82ef17363414e372133f4c7181e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-29 21:57:06 -08:00
Brad Fitzpatrick
135580a5a8 tailcfg, ipn/ipnlocal, net/dns: forward exit node DNS on Unix to system DNS
Updates #1713

Change-Id: I4c073fec0992d9e01a9a4ce97087d5af0efdc68d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-29 15:25:41 -08:00
Brad Fitzpatrick
c2efe46f72 ipn/ipnlocal: restrict exit node DoH server based on ACL'ed packet filter
Don't be a DoH DNS server to peers unless the Tailnet admin has permitted
that peer autogroup:internet access.

Updates #1713

Change-Id: Iec69360d8e4d24d5187c26904b6a75c1dabc8979
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-29 09:56:59 -08:00
Thomas Weiß
f8cef1ba08 ipn/store/aws: support using sub-paths in parameters
Fixes #3431

Signed-off-by: Thomas Weiß <panos@unbunt.org>
2021-11-29 07:48:01 -08:00
David Anderson
097602b3ca ipn/ipnlocal: warn more precisely about IP forwarding issues on linux.
If IP forwarding is disabled globally, but enabled per-interface on all interfaces,
don't complain. If only some interfaces have forwarding enabled, warn that some
subnet routing/exit node traffic may not work.

Fixes #1586

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-26 11:03:10 -08:00
David Anderson
33c541ae30 ipn/ipnlocal: populate self status from netmap in ipnlocal, not magicsock.
Fixes #1933

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-26 10:56:42 -08:00
Brad Fitzpatrick
25525b7754 net/dns/resolver, ipn/ipnlocal: wire up peerapi DoH server to DNS forwarder
Updates #1713

Change-Id: Ia4ed9d8c9cef0e70aa6d30f2852eaab80f5f695a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-23 18:59:36 -08:00
Josh Bleecher Snyder
955aa188b3 ipn/ipnlocal: fix logging
We were missing an argument here.
Also, switch to %q, in case anything weird
is happening with these strings.

Updates tailscale/corp#461

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-11-23 13:36:59 -08:00
Brad Fitzpatrick
283ae702c1 ipn/ipnlocal: start adding DoH DNS server to peerapi when exit node
Updates #1713

Change-Id: I8d9c488f779e7acc811a9bc18166a2726198a429
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-23 08:21:41 -08:00
Josh Bleecher Snyder
027b46d0c1 ipn/ipnstate: clarify PeerStatusLite.LastHandshake
And document the other fields, as long as we're here.

Updates #1182

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-11-22 22:01:20 -08:00
Brad Fitzpatrick
4a59a2781a ipn/ipnlocal: export client metrics over peerapi to owner
Updates #3307

Change-Id: I41b1f3c16af5f385575e8d6cea70ae8386504dd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-18 08:04:00 -08:00
Brad Fitzpatrick
57b039c51d util/clientmetrics: add new package to add metrics to the client
And annotate magicsock as a start.

And add localapi and debug handlers with the Prometheus-format
exporter.

Updates #3307

Change-Id: I47c5d535fe54424741df143d052760387248f8d3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-15 13:46:05 -08:00
Maisem Ali
d6dde5a1ac ipn/ipnlocal: handle key extensions after key has already expired
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-11-08 18:15:09 -08:00
Brad Fitzpatrick
87137405e5 ipn/ipnserver: grant js/wasm all localapi permissions
Updates #3157

Change-Id: I3b63762583a4d655eac33ce3dfda37a1f5135a57
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-07 12:13:15 -08:00
Brad Fitzpatrick
01bd789c26 ipn/ipnserver: add Server.LocalBackend accessor
Was done as part of e6fbc0cd54 for ssh
work, but wasn't committed yet. Including it here both to minimize the
ssh diff size, and because I need it for a separate change.

Change-Id: If6eb54a2ca7150ace96488ed14582c2c05ca3422
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-07 11:31:52 -08:00
Brad Fitzpatrick
e6fbc0cd54 cmd/tailscaled, ipn/ipnserver: refactor ipnserver
More work towards removing the massive ipnserver.Run and ipnserver.Options
and making composable pieces.

Work remains. (The getEngine retry loop on Windows complicates things.)
For now some duplicate code exists. Once the Windows side is fixed
to either not need the retry loop or to move the retry loop into a
custom wgengine.Engine wrapper, then we can unify tailscaled_windows.go
too.

Change-Id: If84d16e3cd15b54ead3c3bb301f27ae78d055f80
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-05 15:00:02 -07:00
Brad Fitzpatrick
337757a819 ipn/ipnlocal, control/controlclient: don't propagate all map errors to UI
Fixes regression from 81cabf48ec which made
all map errors be sent to the frontend UI.

Fixes #3230

Change-Id: I7f142c801c7d15e268a24ddf901c3e6348b6729c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-03 17:56:54 -07:00
David Anderson
0532eb30db all: replace tailcfg.DiscoKey with key.DiscoPublic.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-03 14:00:16 -07:00
Brad Fitzpatrick
649f7556e8 cmd/tailscaled, ipn: add tailscaled --statedir flag for var directory
Fixes #2932

Change-Id: I1aa2b323ad542386d140f8336bcc4dcbb8310bd0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-03 13:12:38 -07:00
Brad Fitzpatrick
c7bff35fee ipn/ipnlocal: add owner-only debug handler to get process env
For debugging Synology. Like the existing goroutines handler, in that
it's owner-only.

Change-Id: I852f0626be8e1c0b6794c1e062111d14adc3e6ac
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-11-03 13:12:32 -07:00
Josh Bleecher Snyder
3fd5f4380f util/multierr: new package
github.com/go-multierror/multierror served us well.
But we need a few feature from it (implement Is),
and it's not worth maintaining a fork of such a small module.

Instead, I did a clean room implementation inspired by its API.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-11-02 17:50:15 -07:00
David Anderson
7e6a1ef4f1 tailcfg: use key.NodePublic in wire protocol types.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-02 09:11:43 -07:00
David Anderson
7e8d5ed6f3 ipn: use key.NodePublic instead of tailcfg.NodeKey
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-01 20:32:10 -07:00
David Anderson
c17250cee2 ipn/ipnstate: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-11-01 20:32:10 -07:00
David Anderson
418adae379 various: use NodePublic.AsNodeKey() instead of tailcfg.NodeKeyFromNodePublic()
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-10-29 16:19:27 -07:00
David Anderson
eeb97fd89f various: remove remaining uses of key.NewPrivate.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-10-29 15:01:12 -07:00
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>
2021-10-29 11:57:12 -07:00
David Anderson
c1d009b9e9 ipn/ipnstate: use key.NodePublic instead of the generic key.Public.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-10-29 10:00:59 -07:00
David Anderson
96ad68c5d6 ipn: remove mention of wgkey in comment.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-10-28 10:40:44 -07:00
David Anderson
0c546a28ba types/persist: use new node key type.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-10-28 10:29:43 -07:00
Brad Fitzpatrick
22dbaa0894 ipn/ipnserver: add New, Server.Server
Change-Id: I1dc85a5131b9a628d7fc780fde7103492cd3f1f8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-10-28 09:01:01 -07:00
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>
2021-10-28 09:01:01 -07:00
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>
2021-10-28 09:01:01 -07:00
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>
2021-10-27 15:48:28 -07:00
Maisem Ali
81cabf48ec control/controlclient,tailcfg: propagate registration errors to the frontend
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-10-27 06:57:26 -07:00
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>
2021-10-18 15:48:42 -06:00
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>
2021-10-16 17:53:43 -07:00
Maisem Ali
c6d3f622e9 ipn/ipnlocal: use netaddr.IPSetBuilder when constructing list of interface IPPrefixes.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-10-14 18:53:54 -04:00
Brad Fitzpatrick
ddf3394b40 ipn/ipnlocal: don't try to block localhost traffic when using exit nodes
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-10-14 14:00:45 -07:00
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>
2021-10-13 14:52:50 -07:00
nicksherron
f01ff18b6f all: fix spelling mistakes
Signed-off-by: nicksherron <nsherron90@gmail.com>
2021-10-12 21:23:14 -07:00
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>
2021-10-12 13:51:13 -07:00
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>
2021-10-05 15:18:32 -07:00
Brad Fitzpatrick
67e5fabdbd hostinfo, ipn/ipnlocal: add SetPackage, remove ipnlocal hacks
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-10-05 15:02:35 -07:00
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>
2021-10-05 13:29:06 -07:00
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>
2021-10-04 08:54:23 -07:00
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>
2021-10-03 14:11:12 -07:00
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>
2021-09-28 12:03:18 -07:00
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>
2021-09-27 15:28:50 -07:00
Brad Fitzpatrick
3a72ebb109 ipn: test TestFileStore in a fresh subdirectory
Fixes #2923

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-09-24 15:05:10 -07:00
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>
2021-09-24 15:53:58 -06:00
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>
2021-09-23 10:01:14 -07:00
David Anderson
1eabb5b2d9 ipn: don't log IPN messages that may contain an authkey.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-09-22 20:32:49 -07:00
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>
2021-09-22 14:50:00 -06:00
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>
2021-09-20 21:48:46 -07:00
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>
2021-09-19 22:57:53 -07:00
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>
2021-09-19 17:55:49 -07:00
Josh Bleecher Snyder
d5ab18b2e6 cmd/cloner: add Clone context to regen struct assignments
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-09-17 16:46:08 -07:00
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>
2021-09-17 09:56:32 -07:00
Josh Bleecher Snyder
f834a4ade5 ipn/ipnlocal: fix minor typo in comment
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-09-17 09:56:32 -07:00
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>
2021-09-17 09:56:32 -07:00
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>
2021-09-16 13:36:41 -07:00
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>
2021-09-16 13:36:41 -07:00
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>
2021-09-15 15:31:51 -07:00
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>
2021-09-15 15:31:51 -07:00
Josh Bleecher Snyder
3b58c118dd ipn/ipnlocal: inline LocalBackend.getEngineStatus
For uniformity.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-09-15 15:31:51 -07:00
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>
2021-09-15 15:31:51 -07:00
Josh Bleecher Snyder
7421ba91ec ipn/ipnlocal: only call UpdateEndpoints when the endpoints change
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-09-15 15:31:51 -07:00
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>
2021-09-15 15:31:51 -07:00
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>
2021-09-15 15:31:51 -07:00
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>
2021-09-15 10:58:12 -07:00
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>
2021-09-07 20:06:15 -07:00
Brad Fitzpatrick
48933b0382 ipn/ipnlocal: flesh out the dnsConfigForNetmap tests
Follow-up to #2805 and #2806

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-09-07 19:15:54 -07:00
Brad Fitzpatrick
7fe6ecf165 ipn/ipnlocal: add MagicDNS records for IPv6-only nodes
Updates #2268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-09-07 15:56:13 -07:00
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>
2021-09-07 15:33:45 -07:00
Brad Fitzpatrick
30a614f9b9 ipn/ipnlocal: return early, outdent a bunch in dnsConfigForNetmap
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-09-07 14:56:46 -07:00
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>
2021-09-07 14:54:06 -07:00
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>
2021-09-07 14:44:26 -07:00
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>
2021-09-07 11:57:23 -07:00
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>
2021-09-03 13:17:46 -07:00
David Anderson
61c3b98a24 Revert "types/key: add MachinePrivate and MachinePublic."
Broke the tailscale control plane due to surprise different serialization.

This reverts commit 4fdb88efe1.
2021-09-03 11:34:34 -07:00
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>
2021-09-03 10:07:15 -07:00
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>
2021-09-02 10:20:25 -07:00
Maisem Ali
0842e2f45b ipn/store: add ability to store data as k8s secrets.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-09-01 12:50:59 -07:00
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>
2021-08-25 11:35:48 -07:00
Matt Drollette
c1aa5a2e33 ipn/ipnlocal: update requested tags in host info
Fixes #2641

Signed-off-by: Matt Drollette <matt@drollette.com>
2021-08-21 20:07:00 -07:00
Brad Fitzpatrick
47045265b9 hostinfo: add SetDeviceModel setter, move remaining code from controlclient
Updates tailscale/corp#1959

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-20 10:45:22 -07:00
Brad Fitzpatrick
faa891c1f2 client/tailscale,ipn/localapi: warn on tailscale/tailscaled version skew
Fixes #1905

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-19 08:36:13 -07:00
Brad Fitzpatrick
56db3e2548 ipn/localapi: refresh ACME certs in background two weeks in advance
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-18 12:55:29 -07:00
Simeng He
e199e407d2 tailcfg: add IP and Types field to PingRequest
Signed-off-by: Simeng He <simeng@tailscale.com>
2021-08-18 12:23:24 -04:00
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>
2021-08-17 16:02:10 -07:00
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>
2021-08-17 12:57:49 -07:00
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>
2021-08-17 11:13:03 -07:00
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>
2021-08-06 08:54:33 -07:00
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>
2021-08-05 15:54:00 -07:00
Brad Fitzpatrick
f3c96df162 ipn/ipnstate: move tailscale status "active" determination to tailscaled
Fixes #2579

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-04 09:10:49 -07:00
David Crawshaw
0554b64452 ipnlocal: allow access to guest VMs/containers while using an exit node
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2021-07-29 13:31:09 -07:00
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>
2021-07-29 12:56:58 -07:00
Brad Fitzpatrick
690ade4ee1 ipn/ipnlocal: add URL to IP forwarding error message
Updates #606

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-07-28 08:00:53 -07:00
Brad Fitzpatrick
7428ecfebd ipn/ipnlocal: populate Hostinfo.Package on Android
Fixes tailscale/corp#2266

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-07-26 10:35:37 -07:00
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>
2021-07-20 11:03:25 -07:00
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>
2021-07-19 15:52:47 -07:00
Avery Pennarun
14135dd935 ipn/ipnlocal: make state_test catch the bug fixed by #2445
Updates #2434

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
2021-07-17 08:41:39 -07:00
Brad Fitzpatrick
6eecf3c9d1 ipn/ipnlocal: stay out of map poll when down
Fixes #2434

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-07-17 08:41:39 -07:00
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>
2021-07-13 15:37:59 -07:00
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>
2021-07-13 15:01:38 -07:00
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>
2021-07-13 08:22:10 -07:00
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>
2021-07-12 07:42:22 -07:00
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>
2021-07-11 19:53:23 -07:00
David Crawshaw
805d5d3cde ipnlocal: move log line inside if statement
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2021-07-06 09:35:01 -07:00
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.
2021-07-02 21:33:02 -07:00
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>
2021-07-01 12:29:02 -07:00
Maisem Ali
ec52760a3d wgengine/router_windows: support toggling local lan access when using
exit nodes.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-06-29 09:22:10 -07:00
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>
2021-06-28 14:08:47 -07:00
David Crawshaw
d6f4b5f5cb ipn, etc: use controlplane.tailscale.com
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2021-06-28 09:38:23 -07:00
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>
2021-06-23 16:04:10 -07:00
David Crawshaw
4ce15505cb wgengine: randomize client port if netmap says to
For testing out #2187

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2021-06-23 08:51:37 -07:00
David Crawshaw
297b3d6fa4 staticcheck.conf: turn off noisy lint errors
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2021-06-18 15:48:20 -07:00
Brad Fitzpatrick
0debb99f08 tailcfg: add DNSConfig.ExtraRecords
Updates #1748
Updates #1235
Updates #2055

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-06-16 15:52:21 -07:00
Maisem Ali
f482321f67 ipn/ipnlocal: support exit node local access switching on darwin.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-06-16 19:28:02 +05:00
Brad Fitzpatrick
cd282ec00f tailcfg: add DNSConfig.CertDomains
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-06-15 14:05:46 -07:00
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>
2021-06-14 08:59:09 -07:00
Maisem Ali
f944614c5c cmd/tailscale/web: add support for QNAP
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-06-10 19:06:05 +05:00
Brad Fitzpatrick
e29cec759a ipn/{ipnlocal,localapi}, control/controlclient: add SetDNS localapi
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-06-07 20:35:56 -07:00
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>
2021-06-03 09:46:28 -07:00
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>
2021-06-03 08:29:22 -07:00
Brad Fitzpatrick
a321c24667 go.mod: update netaddr
Involves minor IPSetBuilder.Set API change.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-06-02 09:05:06 -07:00
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>
2021-05-31 14:53:49 -04:00
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>
2021-05-31 14:53:49 -04:00
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>
2021-05-27 10:57:57 -07:00
Elias Naur
adfe8cf41d paths: generalize IOSSharedDir to cover Android
Also fix an error message while here.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2021-05-24 13:52:48 -07:00
David Anderson
df350e2069 ipn/ipnlocal: initialize DNS config maps unconditionally.
Fixes #1963.

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-05-20 20:22:39 -07:00
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>
2021-05-19 09:33:19 -07:00
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>
2021-05-18 14:15:17 -07:00
David Anderson
6690f86ef4 net/dns: always offer MagicDNS records at 100.100.100.100.
Fixes #1886.

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-05-18 14:15:17 -07:00
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>
2021-05-16 14:52:00 -07:00
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>
2021-05-12 23:21:22 -04:00
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>
2021-05-12 23:21:11 -04:00
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>
2021-05-11 12:11:16 -07:00
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>
2021-05-10 14:36:27 -07:00
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>
2021-05-07 09:31:55 -07:00
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>
2021-05-05 08:25:15 -07:00
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>
2021-05-04 15:19:25 -04:00
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>
2021-05-04 11:09:02 -07:00
Brad Fitzpatrick
f5bccc0746 ipn/ipnlocal: redact more errors
Updates tailscale/corp#1636

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-05-04 09:58:09 -07:00
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>
2021-05-03 10:09:13 -07:00
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>
2021-04-30 07:36:53 -07:00
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>
2021-04-30 09:18:13 -04:00
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>
2021-04-30 09:18:13 -04:00
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>
2021-04-30 09:18:13 -04:00
Avery Pennarun
2a4d1cf9e2 Add prefs.LoggedOut to fix several state machine bugs.
Fixes: tailscale/corp#1660

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
2021-04-30 09:18:13 -04:00
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>
2021-04-30 09:18:12 -04:00
Avery Pennarun
ac9cd48c80 ipnlocal: fix deadlock when calling Shutdown() from Start().
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
2021-04-30 09:17:47 -04:00
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.
2021-04-30 06:16:58 -04:00
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>
2021-04-30 00:09:35 -04:00
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>
2021-04-30 00:09:35 -04:00
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>
2021-04-29 16:06:01 -07:00
Brad Fitzpatrick
b7a497a30b ipn/ipnlocal: make FileTargets check IPN state first
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-29 10:26:53 -07:00
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>
2021-04-28 11:02:56 -07:00
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>
2021-04-28 08:52:04 -07:00
David Anderson
306a094d4b ipn/ipnlocal: remove IPv6 records from MagicDNS.
Fixes #1813.

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-04-28 01:01:56 -07:00
Brad Fitzpatrick
3bdc9e9cb2 ipn/ipnlocal: prevent a now-expected [unexpected] log message on Windows
Updates #1620

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-27 09:58:05 -07:00
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>
2021-04-26 11:34:05 -07:00
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>
2021-04-26 10:59:25 -07:00
Aleksandar Pesic
7c985e4944 ipn/ipnlocal: add file sharing to windows shell
Updates: tailscale/winmin#33

Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
2021-04-23 13:32:33 -07:00
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>
2021-04-23 12:14:12 -07:00
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>
2021-04-23 12:13:50 -07:00
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>
2021-04-22 15:56:54 -07:00
David Anderson
36d030cc36 ipn/ipnlocal: use fallback default DNS whenever exit nodes are on.
Fixes #1625

Signed-off-by: David Anderson <danderson@tailscale.com>
2021-04-22 15:24:18 -07:00
Brad Fitzpatrick
86e85d8934 ipn/ipnlocal: add peerapi goroutine fetch
Between owners.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-22 13:11:51 -07:00
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>
2021-04-22 10:04:50 -07:00
Brad Fitzpatrick
529ef98b2a ipn/ipnlocal: fix approxSize operator precedence
Whoops.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-22 08:44:50 -07:00
Brad Fitzpatrick
b03c23d2ed ipn/ipnlocal: log on DeleteFile error
Updates tailscale/corp#1626

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-22 07:48:18 -07:00
Brad Fitzpatrick
2f17a34242 ipn/ipnlocal: fix tailscale status --json AuthURL field
It was getting cleared on notify.

Document that authURL is cleared on notify and add a new field that
isn't, using the new field for the JSON status.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-21 13:42:26 -07:00
Brad Fitzpatrick
09891b9868 ipn/ipnlocal: on fresh lazy-connecting install, start in state NeedsLogin
Fixes #1759

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-04-21 13:25:31 -07:00