This updates all source files to use a new standard header for copyright
and license declaration. Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.
This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.
Updates #6865
Signed-off-by: Will Norris <will@tailscale.com>
When turned on via environment variable (off by default), this will use
the BSD routing APIs to query what interface index a socket should be
bound to, rather than binding to the default interface in all cases.
Updates #5719
Updates #5940
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ib4c919471f377b7a08cd3413f8e8caacb29fee0b
This allows users to temporarily enable/disable dnscache logging via a
new node capability, to aid in debugging strange connectivity issues.
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I46cf2596a8ae4c1913880a78d0033f8b668edc08
The current node isn't in NetMap.Peers, so without this we would not
have fired this timer on self expiry.
Updates #6932
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Id57f96985397e372f9226802d63b42ff92c95093
On macOS (AppStore and macsys), we need to bind to ""/all-interfaces
due to the network sandbox. Ideally we would only bind to the
Tailscale interface, but macOS errors out if we try to
to listen on privileged ports binding only to a specific
interface.
We also implement the lc.Control hook, same as we do for
peerapi. It doesn't solve our problem but it's better that
we do and would likely be required when Apple gets around to
fixing per-interface priviliged port binding.
Fixes: #6364
Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
This change delays the first flush in the /watch-ipn-bus/ handler
until after the watcher has been successfully installed on the IPN
bus. It does this by adding a new onWatchAdded callback to
LocalBackend.WatchNotifications().
Without this, the endpoint returns a 200 almost immediatly, and
only then installs a watcher for IPN events. This means there's a
small window where events could be missed by clients after calling
WatchIPNBus().
Fixestailscale/corp#8594.
Signed-off-by: salman <salman@tailscale.com>
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
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>
UI works remains, but data is there now.
Updates #4015
Change-Id: Ib91e94718b655ad60a63596e59468f3b3b102306
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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>
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>
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
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>
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>
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>
* 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>
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
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>
For testing of Windows GUI client.
Updates #6480
Change-Id: I42f7526d95723e14bed7085fb759e371b43aa9da
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
To simplify clients getting the initial state when they subscribe.
Change-Id: I2490a5ab2411253717c74265a46a98012b80db82
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
The earlier 5f6d63936f was not complete.
Updates tailscale/corp#7515
Change-Id: I35efca51d1584c48ef6834a7d29cd42d7c943628
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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>
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>
I was too late with review feedback to 513780f4f8.
Updates tailscale/corp#7948
Change-Id: I8fa3b4eba4efaff591a2d0bfe6ab4795638b7c3a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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>
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>
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>
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>
