Commit Graph

18 Commits

Author SHA1 Message Date
Sebastian Soto
dbd8f99a5e windows: add Service.ListDependentServices
This method allows a user to list all Windows services which are
dependent upon a given service.

This commit makes use of the EnumDependentServices Windows API call.
Without this, a user would have to iterate through each service on the
system, and check if the given service is listed in each service's
dependencies list.

The implementation of ListDependentServices is mostly the same as
Mgr.ListServices, as the API calls behave in the same way.

Fixes golang/go#56766

Change-Id: I9ec18c97afd02f48deef691ccdd5c26d6501add1
Reviewed-on: https://go-review.googlesource.com/c/sys/+/451363
Reviewed-by: Than McIntosh <thanm@google.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2023-04-14 09:16:30 +00:00
Russ Cox
b5fbb4746d all: gofmt
Gofmt to update doc comments to the new formatting.

For golang/go#51082.

Change-Id: I9a1c4b671c06820a1c383ee515f7884965fefa54
Reviewed-on: https://go-review.googlesource.com/c/sys/+/399602
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
2022-04-29 23:34:32 +00:00
Jason A. Donenfeld
6e7872819d windows/svc: allow querying service start reason
The QueryServiceDynamicInformation API makes it possible to determine
why a service started. This is declared as an optional function because
the API is Win8+.

Reference:
https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nf-winsvc-queryservicedynamicinformation

Change-Id: I18e9a95b35f8c37d94c9900626c1785f425701dc
Reviewed-on: https://go-review.googlesource.com/c/sys/+/358394
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2021-10-29 16:52:21 +00:00
Jason A. Donenfeld
25fac919d9 windows/svc: do not close service handle
The documentation [1] says "The service status handle does not have to
be closed." That makes it seem like it's optional. But actually, closing
it raises a user exception, because it's not a legitimate handle to
close.

This commit also adds the right go build comments with a `go fmt` pass.

[1] https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nf-winsvc-registerservicectrlhandlerexa

Change-Id: Ibf67c0e8d94c87068720472009b24cecdfda6519
Reviewed-on: https://go-review.googlesource.com/c/sys/+/357250
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2021-10-20 15:30:01 +00:00
Jason A. Donenfeld
0ec99a608a windows/svc: rewrite in Go
The old service management code was written in assembly and communicated
over Windows events, which resulted in non-obvious control flow.
NewCallback makes it possible to rewrite all of this in vanilla Go. This
also enables the service test on the Go builders, as modifying system
services shouldn't be an issue there.

Change-Id: I8003b57d11d4469f762058c648a4b7733530eeb8
Reviewed-on: https://go-review.googlesource.com/c/sys/+/330010
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2021-10-20 06:40:51 +00:00
Jason A. Donenfeld
ed752295db windows/svc/mgr: report exit status when querying services
One thing the newer notification API does not do is automatically
provide the service exit code in its notifier response. It requires
querying manually. Unfortunately, we weren't propagating this
information up from the lower level struct, so this commit copys that
information over.

Change-Id: I70c683007ce34ffab6196329acefc8443f921ebe
Reviewed-on: https://go-review.googlesource.com/c/sys/+/274577
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
2020-12-04 22:54:14 +00:00
Lewis Waddicor
288bc346aa windows: support service PreShutdown service control signal
This adds support for the PreShutdown signal indicating the system will
be shutting down. This allows services which need time to shutdown
gracefully to use SERVICE_ACCEPT_PRESHUTDOWN to register for
SERVICE_CONTROL_PRESHUTDOWN events.

https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nc-winsvc-lphandler_function_ex?redirectedfrom=MSDN

Change-Id: I380d366d49ff380972c1efe83f43610b30432f35
GitHub-Last-Rev: db8ea88b25
GitHub-Pull-Request: golang/sys#85
Reviewed-on: https://go-review.googlesource.com/c/sys/+/253477
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Daniel Martí <mvdan@mvdan.cc>
2020-09-15 08:46:02 +00:00
Yaroslav Vorobiov
fe76b779f2 windows: fix -d=checkptr slice failures
This CL fixes unsafe casts to slices that are missing length or capacity.

Running tests with -d=checkptr enabled may panic on casting unsafe.Pointer to a static array of large predefined length, that is most likely much bigger than the size of the actual array in memory. Checkptr check is not satisfied if slicing operator misses length and capacity arguments `(*[(1 << 30) - 1]uint16)(unsafe.Pointer(p))[:]`, or when there is no slicing at all `(*[(1 << 30) - 1]uint16)(unsafe.Pointer(p))`.

To find all potential cases I used `grep -nr ")(unsafe.Pointer(" ./windows`, then filtered out safe casts when object size is always static and known at compile time.

To reproduce the issue run tests with checkptr enabled `go test -a -gcflags=all=-d=checkptr ./windows/...`.

Updates golang/go#34972
Fixes golang/go#38355

Change-Id: I9dd2084b4f9fb7618cdb140fb2f38b56b6d6cc04
GitHub-Last-Rev: 73288ad18a
GitHub-Pull-Request: golang/sys#65
Reviewed-on: https://go-review.googlesource.com/c/sys/+/225418
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2020-05-19 10:57:57 +00:00
Jason A. Donenfeld
2cc0cad0ac windows: document new ProcessId field
Change-Id: I761f962f30eb48471a0f033cf30ea6c428d3ce49
Reviewed-on: https://go-review.googlesource.com/c/sys/+/174237
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2019-04-29 09:44:11 +00:00
Jason A. Donenfeld
1607263960 windows: allow querying service ProcessId
The two functions have the same levels of compatibility, but this latter
one gives us access to the process ID, which is important for things
like WFP whitelisting. The change required is fairly trivial too.

Change-Id: Ifb6b3ee3e897202b9cffa1388c53c25cbcfede61
Reviewed-on: https://go-review.googlesource.com/c/sys/+/173666
Run-TryBot: Jason Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-04-25 14:56:19 +00:00
Jason A. Donenfeld
9773273309 windows: add missing error constants
While the types_windows file previously had a small handful of types,
this forced application code to have an awkward mixture of artisanal
error constants and factory-ready ones. This commit adds the missing
ones and separates them into a new file, since they are quite numerous.

These also preserve the order of winerr.h, which should make it somewhat
easier to import new ones in the future.

Fixes golang/go#31360

Change-Id: If2abc507a8884ec1641f0b17fe0c612a950d3644
Reviewed-on: https://go-review.googlesource.com/c/sys/+/170918
Reviewed-by: Jason Donenfeld <Jason@zx2c4.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Jason Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-04-12 21:31:03 +00:00
Jason A. Donenfeld
70f5298506 windows/svc: safely load system DLLs
These DLLs, well advapi32.dll in particular, are vulnerable to classic
DLL directory injection attacks. The rest of x/sys/windows moved over to
the safe system loader, but apparently the svc package was forgotten.
This tidies up that oversight.

Change-Id: I330fa752cf2d49ccc5cf1bd60fb4bd612bd2b6b0
Reviewed-on: https://go-review.googlesource.com/c/sys/+/165758
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-06 17:15:55 +00:00
Alex Brainman
b6889370fb windows/svc: align ctlHandler parameters
ctlHandler is passed to RegisterServiceCtrlHandlerEx as a callback
function. But all ctlHandler parameters have to be uintptr aligned
regardless of their type.

Adjust ctlHandler parameters, so they are aligned accordingly.

Also uncomment part of TestExample that verifies passing of
ChangeRequest.Context.

Fixes golang/go#25660

Change-Id: Ie96fa5c78b911ad9df6775f5c49e7f6d56464f6b
Reviewed-on: https://go-review.googlesource.com/c/158698
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-02 02:57:03 +00:00
Alex Brainman
12036c158a windows/svc: add Context to ChangeRequest
New Context field will be used in the following CL to test
ctlHandler parameter alignments.

Also adjust TestExample to pass hard coded Context value of 123456
to test service, and verify that correct value is logged. Final
part of the test is commented out, and will be adjusted in the next
CL.

Updates golang/go#25660

Change-Id: Iad2896ae497ee1edc0d62655eaf08671ec2651c5
Reviewed-on: https://go-review.googlesource.com/c/158697
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-02 02:54:30 +00:00
Hana (Hyang-Ah) Kim
7dfd1290c7 windows: address vet reports
Found in https://storage.googleapis.com/go-build-log/300ed876/misc-vet-vetall_dd96a388.log

cmd/vendor/golang.org/x/sys/windows/asm_windows_386.s:9: [386] getprocaddress: wrong argument size 8; expected $...-16
cmd/vendor/golang.org/x/sys/windows/asm_windows_386.s:12: [386] loadlibrary: wrong argument size 4; expected $...-12
cmd/vendor/golang.org/x/sys/windows/svc/service.go:337: cmd/vendor/golang.org/x/sys/windows.SERVICE_TABLE_ENTRY composite literal uses unkeyed fields
cmd/vendor/golang.org/x/sys/windows/svc/service.go:338: cmd/vendor/golang.org/x/sys/windows.SERVICE_TABLE_ENTRY composite literal uses unkeyed fields
cmd/vendor/golang.org/x/sys/windows/svc/debug/service.go:34: cmd/vendor/golang.org/x/sys/windows/svc.ChangeRequest composite literal uses unkeyed fields
cmd/vendor/golang.org/x/sys/windows/svc/mgr/config.go:124: cmd/vendor/golang.org/x/sys/windows.SERVICE_DESCRIPTION composite literal uses unkeyed fields

Change-Id: Ic08cfcc802aac89cfa1eb98661ec556c844e8013
Reviewed-on: https://go-review.googlesource.com/112557
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-05-10 03:28:50 +00:00
Tyler Treat
f7928cfef4 windows/svc: add missing Accept commands
Add the remaining AcceptX commands (AcceptParamChange,
AcceptNetBindChange, AcceptHardwareProfileChange, AcceptPowerEvent, and
AcceptSessionChange) to the windows/svc package. Also add support for
these to updateStatus such that a service can actually accept these
commands.

Change-Id: I11191e7798489b3222a3e76ba55129f10fd202ab
Reviewed-on: https://go-review.googlesource.com/46722
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-06-27 01:25:38 +00:00
Julian Pastarmov
e62c3de784 windows: use RegisterServiceCtrlHandlerEx to allow for advanced notifications
This allows services written with this library to register for more
advanced notifications like SERVICE_CONTROL_DEVICEEVENT for example.

Also the code now exposes the service status handle through a new
api call, because the handle is needed to register for such
notifications and can not be obtained by any other means.

Change-Id: I80796e1dd9d94ec9d6c236d0413b17288c67fe1f
Reviewed-on: https://go-review.googlesource.com/42812
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-05-18 05:52:01 +00:00
Alex Brainman
65705ef9e9 windows/svc: add new package to help create and manage Windows services
Change-Id: I58bb446aaa387b31d8a9ff4217793a170b96a7e2
Reviewed-on: https://go-review.googlesource.com/9104
Reviewed-by: Rob Pike <r@golang.org>
2015-05-01 05:26:56 +00:00