On Windows, the idiomatic way to check access on a named pipe is for
the server to impersonate the client on its current OS thread, perform
access checks using the client's access token, and then revert the OS
thread's access token back to its true self.
The access token is a better representation of the client's rights than just
a username/userid check, as it represents the client's effective rights
at connection time, which might differ from their normal rights.
This patch updates safesocket to do the aforementioned impersonation,
extract the token handle, and then revert the impersonation. We retain
the token handle for the remaining duration of the connection (the token
continues to be valid even after we have reverted back to self).
Since the token is a property of the connection, I changed ipnauth to wrap
the concrete net.Conn to include the token. I then plumbed that change
through ipnlocal, ipnserver, and localapi as necessary.
I also added a PermitLocalAdmin flag to the localapi Handler which I intend
to use for controlling access to a few new localapi endpoints intended
for configuring auto-update.
Updates https://github.com/tailscale/tailscale/issues/755
Signed-off-by: Aaron Klotz <aaron@tailscale.com>
Currently the checklocks step is not configured to fail, as we do not
yet have the appropriate annotations.
Updates tailscale/corp#14381
Signed-off-by: James Tucker <james@tailscale.com>
We prevent shodow configs when starting a foreground when a background serve config already exists for the serve type and port. This PR improves the messaging to let the user know how to remove the previous config.
Updates #8489
ENG-2314
Signed-off-by: Tyler Smalley <tyler@tailscale.com>
The `--http` flag can not be used with Funnel, so we should remove it to remove confusion.
Updates #8489
ENG-2316
Signed-off-by: Tyler Smalley <tyler@tailscale.com>
This PR changes the -https, -http, -tcp, and -tls-terminated-tcp
flags from string to int and also updates the validation to ensure
they fit the uint16 size as the flag library does not have a Uint16Var
method.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
The TestServeDevConfigMutations test has 63 steps that all run
under the same scope. This tests breaks them out into isolated
subtests that can be run independently.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
Previously returned errTaggedSource in the case that of any tagged
source. Now distinguishing whether the source was local or remote.
We'll be presenting the two cases with varying copy on the frontend.
Updates tailscale/corp#14335
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
In addition to the new policy keys for the new options, some
already-in-use but missing policy keys are also being added to
util/syspolicy.
Updates ENG-2133
Change-Id: Iad08ca47f839ea6a65f81b76b4f9ef21183ebdc6
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
We currently print out "run tailscale serve --help" when the subcmd
might be funnel. This PR ensures the right subcmd is passed.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
On `tailscale set --auto-update`, set the Sparkle plist option for it.
Also make macsys report not supporting auto-updates over c2n, since they
will be triggered by Sparkle locally.
Updates #755
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
A few people have run into issues with understanding why `--set-path` started in background mode, and/or why they couldn't use a path in foreground mode. This change allows `--set-path` to be used in either case (foreground or background).
updates #8489
Signed-off-by: Tyler Smalley <tyler@tailscale.com>
When trying to set up multiple derper instances meshing with each
other, it turned out that while one can specify an alternative
listening port using the -a flag, the TLS hostname gets incorrectly
determined and includes the set alternative listening port as part of
the hostname. Thus, the TLS hostname validation always fails when the
-mesh-with values have ports.
Updates #9949
Signed-off-by: Thomas Kosiewski <thomas.kosiewski@loft.sh>
TestNewConn now passes as root on Linux. It wasn't closing the BPF
listeners and their goroutines.
The code is still a mess of two Close overlapping code paths, but that
can be refactored later. For now, make the two close paths more similar.
Updates #9945
Change-Id: I8a3cf5fb04d22ba29094243b8e645de293d9ed85
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
clientupdate.Updater will have a non-nil Update func in a few cases
where it doesn't actually perform an update:
* on Arch-like distros, where it prints instructions on how to update
* on macOS app store version, where it opens the app store page
Add a new clientupdate.Arguments field to cause NewUpdater to fail when
we hit one of these cases. This results in c2n updates being "not
supported" and `tailscale set --auto-update` returning an error.
Updates #755
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
Prior to an earlier netstack bump this code used a string conversion
path to cover multiple cases of behavior seemingly checking for
unspecified addresses, adding unspecified addresses to v6. The behavior
is now crashy in netstack, as it is enforcing address length in various
areas of the API, one in particular being address removal.
As netstack is now protocol specific, we must not create invalid
protocol addresses - an address is v4 or v6, and the address value
contained inside must match. If a control path attempts to do something
otherwise it is now logged and skipped rather than incorrect addressing
being added.
Fixestailscale/corp#15377
Signed-off-by: James Tucker <james@tailscale.com>
* Fixes issue with template string not being provided in help text
* Updates background information to provide full URL, including path, to make it clear the source and destination
* Restores some tests
* Removes AllowFunnel in ServeConfig if no proxy exists for that port.
updates #8489
Signed-off-by: Tyler Smalley <tyler@tailscale.com>
This PR adds the same set-raw from the old flow into the new one
so that users can continue to use it when transitioning into the new
flow.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
This PR fixes the isLegacyInvocation to better catch serve and
funnel legacy commands. In addition, it now also returns a string
that translates the old command into the new one so that users
can have an easier transition story.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
It would end up resetting whatever hostinfo we had constructed
and leave the backend statemachine in a broken state.
This fixes that by storing the PushDeviceToken on the LocalBackend
and populating it on Hostinfo before passing it to controlclient.
Updates tailscale/corp#8940
Updates tailscale/corp#15367
Signed-off-by: Maisem Ali <maisem@tailscale.com>
The value being passed was the same as whats on b.hostinfo, so just
use that directly.
Updates #cleanup
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Go has no way to explicitly identify Go struct as effectively a tuple,
so staticcheck assumes any external use of unkeyed literals is wrong.
Updates #cleanup
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
This PR allows you to do "tailscale serve -bg -https:4545 off" and it
will delete all handlers under it. It will also prompt you for a y/n in case
you wanted to delete a single port.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
When updating via c2n, `tailscale.exe update` runs from `tailscaled.exe`
which runs as SYSTEM. The MSI installer does not start the GUI when
running as SYSTEM. This results in Tailscale just existing on
auto-update, which is ungood.
Instead, always ask the MSI installer to not launch the GUI (via
`TS_NOLAUNCH` argument) and launch it manually with a token from the
current logged in user. The token code was borrowed from
d9081d6ba2/net/dns/wsl_windows.go (L207-L232)
Also, make some logging changes so that these issues are easier to debug
in the future.
Updates #755
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
Users should delete proxies by deleting or modifying the k8s cluster resources
that they used to tell the operator to create they proxy. With this flow,
the tailscale operator will delete the associated device from the control.
However, in some cases users might have already deleted the device from the control manually.
Updates tailscale/tailscale#9773
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
This adds a check to prevent changes to ServeConfig if tailscaled
is run with a Locked config.
Missed in 1fc3573446.
Updates #1412
Signed-off-by: Maisem Ali <maisem@tailscale.com>
We no longer build Windows releases with cgo enabled, which
automatically turned off certstore support. Rather than re-enabling cgo,
we updated our fork of the certstore package to no longer require cgo.
This updates the package, cleans up how the feature is configured, and
removes the cgo build tag requirement.
Fixestailscale/corp#14797Fixestailscale/coral#118
Change-Id: Iaea34340761c0431d759370532c16a48c0913374
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
This commit makes two changes to the web client auth flow error
handling:
1. Properly passes back the error code from the noise request from
the localapi. Previously we were using io.Copy, which was always
setting a 200 response status code.
2. Clean up web client browser sessions on any /wait endpoint error.
This avoids the user getting in a stuck state if something goes
wrong with their auth path.
Updates tailscale/corp#14335
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
In the sandboxed app from the app store, we cannot check
`/Library/Preferences/com.apple.commerce.plist` or run `softwareupdate`.
We can at most print a helpful message and open the app store page.
Also, reenable macsys update function to mark it as supporting c2n
updates. macsys support in `tailscale update` was fixed.
Updates #755
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
Ensure that when a userspace proxy config is reloaded,
connections for any removed proxies are safely closed
Updates tailscale/tailscale#9725
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Stores ID from tailcfg.WebClientAuthResponse in browser session
data, and uses ID to hit control server /wait endpoint.
No longer need the control url cached, so removed that from Server.
Also added optional timeNow field, initially to manage time from
tests.
Updates tailscale/corp#14335
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
It is possible that upon a cold-start, we enqueue a partial file
for deletion that is resumed shortly after startup.
If the file transfer happens to last longer than deleteDelay,
we will delete the partial file, which is unfortunate.
The client spent a long time uploading a file,
only for it to be accidentally deleted.
It's a very rare race, but also a frustrating one
if it happens to manifest.
Fix the code to only delete partial files that
do not have an active puts against it.
We also fix a minor bug in ResumeReader
where we read b[:blockSize] instead of b[:cs.Size].
The former is the fixed size of 64KiB,
while the latter is usually 64KiB,
but may be less for the last block.
Updates tailscale/corp#14772
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
This change refactors & moves the bulk of the app connector logic from
./cmd/sniproxy.
A future change will delete the delta in sniproxy and wire it to this type.
Signed-off-by: Tom DNetto <tom@tailscale.com>
Updates: https://github.com/tailscale/corp/issues/15038
The progress printer was buggy where it would not print correctly
and some of the truncation logic was faulty.
The progress printer now prints something like:
go1.21.3.linux-amd64.tar.gz 21.53MiB 13.83MiB/s 33.88% ETA 00:00:03
where it shows
* the number of bytes transferred so far
* the rate of bytes transferred
(using a 1-second half-life for an exponentially weighted average)
* the progress made as a percentage
* the estimated time
(as calculated from the rate of bytes transferred)
Other changes:
* It now correctly prints the progress for very small files
* It prints at a faster rate (4Hz instead of 1Hz)
* It uses IEC units for byte quantities
(to avoid ambiguities of "kb" being kilobits or kilobytes)
Updates tailscale/corp#14772
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
The `serve` command for TCP has always required the scheme of the target to be specified. However, when it's omitted the error message reported is misleading
```
error: failed to apply TCP serve: invalid TCP target "localhost:5900": missing port in address
```
Since we know the target is TCP, we shouldn't require it to be specified. This aligns with the changes for HTTP proxies in https://github.com/tailscale/tailscale/issues/8489closes#9855
Signed-off-by: Tyler Smalley <tyler@tailscale.com>
The `off` subcommand removes a serve/funnel for the corresponding type and port. Previously, we were not providing this which would result in an error if someone was using something than the default https=443.
closes#9858
Signed-off-by: Tyler Smalley <tyler@tailscale.com>
