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windows/svc: allow querying service start reason

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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>
This commit is contained in:
Jason A. Donenfeld
2021-10-29 16:52:21 +00:00
parent c1bf0bb051
commit 6e7872819d
3 changed files with 48 additions and 3 deletions
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windows/service.go
+10 -2
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@@ -17,8 +17,6 @@ const (
SC_MANAGER_ALL_ACCESS = 0xf003f
)
//sys OpenSCManager(machineName *uint16, databaseName *uint16, access uint32) (handle Handle, err error) [failretval==0] = advapi32.OpenSCManagerW
const (
SERVICE_KERNEL_DRIVER = 1
SERVICE_FILE_SYSTEM_DRIVER = 2
@@ -133,6 +131,14 @@ const (
SC_EVENT_DATABASE_CHANGE = 0
SC_EVENT_PROPERTY_CHANGE = 1
SC_EVENT_STATUS_CHANGE = 2
SERVICE_START_REASON_DEMAND = 0x00000001
SERVICE_START_REASON_AUTO = 0x00000002
SERVICE_START_REASON_TRIGGER = 0x00000004
SERVICE_START_REASON_RESTART_ON_FAILURE = 0x00000008
SERVICE_START_REASON_DELAYEDAUTO = 0x00000010
SERVICE_DYNAMIC_INFORMATION_LEVEL_START_REASON = 1
)
type SERVICE_STATUS struct {
@@ -217,6 +223,7 @@ type QUERY_SERVICE_LOCK_STATUS struct {
LockDuration uint32
}
//sys OpenSCManager(machineName *uint16, databaseName *uint16, access uint32) (handle Handle, err error) [failretval==0] = advapi32.OpenSCManagerW
//sys CloseServiceHandle(handle Handle) (err error) = advapi32.CloseServiceHandle
//sys CreateService(mgr Handle, serviceName *uint16, displayName *uint16, access uint32, srvType uint32, startType uint32, errCtl uint32, pathName *uint16, loadOrderGroup *uint16, tagId *uint32, dependencies *uint16, serviceStartName *uint16, password *uint16) (handle Handle, err error) [failretval==0] = advapi32.CreateServiceW
//sys OpenService(mgr Handle, serviceName *uint16, access uint32) (handle Handle, err error) [failretval==0] = advapi32.OpenServiceW
@@ -237,3 +244,4 @@ type QUERY_SERVICE_LOCK_STATUS struct {
//sys SubscribeServiceChangeNotifications(service Handle, eventType uint32, callback uintptr, callbackCtx uintptr, subscription *uintptr) (ret error) = sechost.SubscribeServiceChangeNotifications?
//sys UnsubscribeServiceChangeNotifications(subscription uintptr) = sechost.UnsubscribeServiceChangeNotifications?
//sys RegisterServiceCtrlHandlerEx(serviceName *uint16, handlerProc uintptr, context uintptr) (handle Handle, err error) = advapi32.RegisterServiceCtrlHandlerExW
//sys QueryServiceDynamicInformation(service Handle, infoLevel uint32, dynamicInfo unsafe.Pointer) (err error) = advapi32.QueryServiceDynamicInformation?