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>
