Commit Graph

8 Commits (717d5891497c8c4d185107059752dc3063a5c7dd)

Author SHA1 Message Date
Aaron Klotz 5f177090e3 util/winutil: ensure domain controller address is used when retrieving remote profile information
We cannot directly pass a flat domain name into NetUserGetInfo; we must
resolve the address of a domain controller first.

This PR implements the appropriate resolution mechanisms to do that, and
also exposes a couple of new utility APIs for future needs.

Fixes #12627

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
5 months ago
Aaron Klotz 7354547bd8 util/winutil: update UserProfile to ensure any environment variables in the roaming profile path are expanded
Updates #12383

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
5 months ago
Aaron Klotz bd2a6d5386 util/winutil: add UserProfile type for (un)loading user profiles
S4U logons do not automatically load the associated user profile. In this
PR we add UserProfile to handle that part. Windows docs indicate that
we should try to resolve a remote profile path when present, so we attempt
to do so when the local computer is joined to a domain.

Updates #12383

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
5 months ago
Aaron Klotz db39a43f06 util/winutil: add support for restarting Windows processes in specific sessions
This PR is all about adding functionality that will enable the installer's
upgrade sequence to terminate processes belonging to the previous version,
and then subsequently restart instances belonging to the new version within
the session(s) corresponding to the processes that were killed.

There are multiple parts to this:

* We add support for the Restart Manager APIs, which allow us to query the
  OS for a list of processes locking specific files;
* We add the RestartableProcess and RestartableProcesses types that query
  additional information about the running processes that will allow us
  to correctly restart them in the future. These types also provide the
  ability to terminate the processes.
* We add the StartProcessInSession family of APIs that permit us to create
  new processes within specific sessions. This is needed in order to
  properly attach a new GUI process to the same RDP session and desktop that
  its previously-terminated counterpart would have been running in.
* I tweaked the winutil token APIs again.
* A lot of this stuff is pretty hard to test without a very elaborate
  harness, but I added a unit test for the most complicated part (though it
  requires LocalSystem to run).

Updates https://github.com/tailscale/corp/issues/13998

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
1 year ago
Aaron Klotz ea693eacb6 util/winutil: add RegisterForRestart, allowing programs to indicate their preferences to the Windows restart manager
In order for the installer to restart the GUI correctly post-upgrade, we
need the GUI to be able to register its restart preferences.

This PR adds API support for doing so. I'm adding it to OSS so that it
is available should we need to do any such registrations on OSS binaries
in the future.

Updates https://github.com/tailscale/corp/issues/13998

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
1 year ago
Aaron Klotz 37925b3e7a go.mod, cmd/tailscaled, ipn/localapi, util/osdiag, util/winutil, util/winutil/authenticode: add Windows module list to OS-specific logs that are written upon bugreport
* We update wingoes to pick up new version information functionality
  (See pe/version.go in the https://github.com/dblohm7/wingoes repo);
* We move the existing LogSupportInfo code (including necessary syscall
  stubs) out of util/winutil into a new package, util/osdiag, and implement
  the public LogSupportInfo function may be implemented for other platforms
  as needed;
* We add a new reason argument to LogSupportInfo and wire that into
  localapi's bugreport implementation;
* We add module information to the Windows implementation of LogSupportInfo
  when reason indicates a bugreport. We enumerate all loaded modules in our
  process, and for each one we gather debug, authenticode signature, and
  version information.

Fixes #7802

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
1 year ago
Aaron Klotz 2aa8299c37 cmd/tailscaled, util/winutil: log our registry keys during tailscaled startup
In order to improve our ability to understand the state of policies and
registry settings when troubleshooting, we enumerate all values in all subkeys.
x/sys/windows does not already offer this, so we need to call RegEnumValue
directly.

For now we're just logging this during startup, however in a future PR I plan to
also trigger this code during a bugreport. I also want to log more than just
registry.

Fixes #8141

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2 years ago
Aaron Klotz 44f13d32d7 cmd/tailscaled, util/winutil: log Windows service diagnostics when the wintun device fails to install
I added new functions to winutil to obtain the state of a service and all
its depedencies, serialize them to JSON, and write them to a Logf.

When tstun.New returns a wrapped ERROR_DEVICE_NOT_AVAILABLE, we know that wintun
installation failed. We then log the service graph rooted at "NetSetupSvc".
We are interested in that specific service because network devices will not
install if that service is not running.

Updates https://github.com/tailscale/tailscale/issues/5531

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2 years ago