reactos/ntoskrnl/ps/job.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/ps/job.c
* PURPOSE: Job Native Functions
* PROGRAMMERS: Alex Ionescu (alex@relsoft.net) (stubs)
* Thomas Weidenmueller <w3seek@reactos.com>
*/
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
/* GLOBALS *******************************************************************/
POBJECT_TYPE PsJobType = NULL;
LIST_ENTRY PsJobListHead;
static FAST_MUTEX PsJobListLock;
BOOLEAN PspUseJobSchedulingClasses;
CHAR PspJobSchedulingClasses[PSP_JOB_SCHEDULING_CLASSES] =
{
1 * 6,
2 * 6,
3 * 6,
4 * 6,
5 * 6,
6 * 6,
7 * 6,
8 * 6,
9 * 6,
10 * 6
};
- Fix one of the oldest hacks in ReactOS: KeGetCurrentThread() and PsGetcurrentProcess used to be NULL during early boot stage. We also didn't have an official idle therad/process. Also system intialization was not in its sepearte thread. Changes: - Implemented SeAssignPrimaryToken. - Setup Boot/System Token for Idle Process in SeInit2. - Remove ROS hack in SeCaptureSubjectContextEx. - Call SeAssignPrimaryToken in PspInitializeProcessSecurty when called for the Initial Process creation. - Implement PsInitiailizeQuotaSystem and set PspDefauptQuotaBlock for the idle process so that it can be used for the initial process. - Rewrite Process Manager Phase 0 initialization from scratch, to create a new initial system process and thread which will be used for Phase 1 (in ROS, phase 2) initialization of the executive. - Fix a bug in PspCreateProcess which was using an uninitialized value of SectionObject in some cases, instead of NULL. - Call PsInitailizeQuotaSystem from ObInit, and also create the system handle table inside the idle process, and make it the ObpKernelHandleTable. - Do Executive Phase 0 Initialization at APC_LEVEL. - Start idle thread at HIGH_PRIORITY then lower it to 0 once the Initial Thread is setup, so that it can run, then keep priority to 0 at DISPATCH_LEVEL and jump into idle loop code. - Add NtYieldExecution to idle loop code since it's now being used. - Fix IoGetCurrentProcess which was previously hacked. - Remove some checks for Thread == NULL in ke_x.h, since this is now impossible. - Split Phase 0/1 initialization in ex\init.c, since one runs in a separate thread now. Also don't lower IRQL to PASSIVE_LEVEL anymore (run at APC_LEVEL). svn path=/trunk/; revision=24148
2006-09-16 20:37:49 +00:00
GENERIC_MAPPING PspJobMapping =
{
STANDARD_RIGHTS_READ | JOB_OBJECT_QUERY,
STANDARD_RIGHTS_WRITE | JOB_OBJECT_ASSIGN_PROCESS |
JOB_OBJECT_SET_ATTRIBUTES | JOB_OBJECT_TERMINATE,
STANDARD_RIGHTS_EXECUTE | SYNCHRONIZE,
STANDARD_RIGHTS_ALL | THREAD_ALL_ACCESS // bug fixed only in vista
};
/* FUNCTIONS *****************************************************************/
VOID
NTAPI
- Fix one of the oldest hacks in ReactOS: KeGetCurrentThread() and PsGetcurrentProcess used to be NULL during early boot stage. We also didn't have an official idle therad/process. Also system intialization was not in its sepearte thread. Changes: - Implemented SeAssignPrimaryToken. - Setup Boot/System Token for Idle Process in SeInit2. - Remove ROS hack in SeCaptureSubjectContextEx. - Call SeAssignPrimaryToken in PspInitializeProcessSecurty when called for the Initial Process creation. - Implement PsInitiailizeQuotaSystem and set PspDefauptQuotaBlock for the idle process so that it can be used for the initial process. - Rewrite Process Manager Phase 0 initialization from scratch, to create a new initial system process and thread which will be used for Phase 1 (in ROS, phase 2) initialization of the executive. - Fix a bug in PspCreateProcess which was using an uninitialized value of SectionObject in some cases, instead of NULL. - Call PsInitailizeQuotaSystem from ObInit, and also create the system handle table inside the idle process, and make it the ObpKernelHandleTable. - Do Executive Phase 0 Initialization at APC_LEVEL. - Start idle thread at HIGH_PRIORITY then lower it to 0 once the Initial Thread is setup, so that it can run, then keep priority to 0 at DISPATCH_LEVEL and jump into idle loop code. - Add NtYieldExecution to idle loop code since it's now being used. - Fix IoGetCurrentProcess which was previously hacked. - Remove some checks for Thread == NULL in ke_x.h, since this is now impossible. - Split Phase 0/1 initialization in ex\init.c, since one runs in a separate thread now. Also don't lower IRQL to PASSIVE_LEVEL anymore (run at APC_LEVEL). svn path=/trunk/; revision=24148
2006-09-16 20:37:49 +00:00
PspDeleteJob ( PVOID ObjectBody )
{
PEJOB Job = (PEJOB)ObjectBody;
/* remove the reference to the completion port if associated */
if(Job->CompletionPort != NULL)
{
ObDereferenceObject(Job->CompletionPort);
}
/* unlink the job object */
if(Job->JobLinks.Flink != NULL)
{
ExAcquireFastMutex(&PsJobListLock);
RemoveEntryList(&Job->JobLinks);
ExReleaseFastMutex(&PsJobListLock);
}
ExDeleteResource(&Job->JobLock);
}
- Fix one of the oldest hacks in ReactOS: KeGetCurrentThread() and PsGetcurrentProcess used to be NULL during early boot stage. We also didn't have an official idle therad/process. Also system intialization was not in its sepearte thread. Changes: - Implemented SeAssignPrimaryToken. - Setup Boot/System Token for Idle Process in SeInit2. - Remove ROS hack in SeCaptureSubjectContextEx. - Call SeAssignPrimaryToken in PspInitializeProcessSecurty when called for the Initial Process creation. - Implement PsInitiailizeQuotaSystem and set PspDefauptQuotaBlock for the idle process so that it can be used for the initial process. - Rewrite Process Manager Phase 0 initialization from scratch, to create a new initial system process and thread which will be used for Phase 1 (in ROS, phase 2) initialization of the executive. - Fix a bug in PspCreateProcess which was using an uninitialized value of SectionObject in some cases, instead of NULL. - Call PsInitailizeQuotaSystem from ObInit, and also create the system handle table inside the idle process, and make it the ObpKernelHandleTable. - Do Executive Phase 0 Initialization at APC_LEVEL. - Start idle thread at HIGH_PRIORITY then lower it to 0 once the Initial Thread is setup, so that it can run, then keep priority to 0 at DISPATCH_LEVEL and jump into idle loop code. - Add NtYieldExecution to idle loop code since it's now being used. - Fix IoGetCurrentProcess which was previously hacked. - Remove some checks for Thread == NULL in ke_x.h, since this is now impossible. - Split Phase 0/1 initialization in ex\init.c, since one runs in a separate thread now. Also don't lower IRQL to PASSIVE_LEVEL anymore (run at APC_LEVEL). svn path=/trunk/; revision=24148
2006-09-16 20:37:49 +00:00
VOID
NTAPI
INIT_FUNCTION
- Fix one of the oldest hacks in ReactOS: KeGetCurrentThread() and PsGetcurrentProcess used to be NULL during early boot stage. We also didn't have an official idle therad/process. Also system intialization was not in its sepearte thread. Changes: - Implemented SeAssignPrimaryToken. - Setup Boot/System Token for Idle Process in SeInit2. - Remove ROS hack in SeCaptureSubjectContextEx. - Call SeAssignPrimaryToken in PspInitializeProcessSecurty when called for the Initial Process creation. - Implement PsInitiailizeQuotaSystem and set PspDefauptQuotaBlock for the idle process so that it can be used for the initial process. - Rewrite Process Manager Phase 0 initialization from scratch, to create a new initial system process and thread which will be used for Phase 1 (in ROS, phase 2) initialization of the executive. - Fix a bug in PspCreateProcess which was using an uninitialized value of SectionObject in some cases, instead of NULL. - Call PsInitailizeQuotaSystem from ObInit, and also create the system handle table inside the idle process, and make it the ObpKernelHandleTable. - Do Executive Phase 0 Initialization at APC_LEVEL. - Start idle thread at HIGH_PRIORITY then lower it to 0 once the Initial Thread is setup, so that it can run, then keep priority to 0 at DISPATCH_LEVEL and jump into idle loop code. - Add NtYieldExecution to idle loop code since it's now being used. - Fix IoGetCurrentProcess which was previously hacked. - Remove some checks for Thread == NULL in ke_x.h, since this is now impossible. - Split Phase 0/1 initialization in ex\init.c, since one runs in a separate thread now. Also don't lower IRQL to PASSIVE_LEVEL anymore (run at APC_LEVEL). svn path=/trunk/; revision=24148
2006-09-16 20:37:49 +00:00
PspInitializeJobStructures(VOID)
{
InitializeListHead(&PsJobListHead);
ExInitializeFastMutex(&PsJobListLock);
}
NTSTATUS
NTAPI
PspAssignProcessToJob(PEPROCESS Process,
PEJOB Job)
{
DPRINT("PspAssignProcessToJob() is unimplemented!\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS
NTAPI
PspTerminateJobObject(PEJOB Job,
KPROCESSOR_MODE AccessMode,
NTSTATUS ExitStatus )
{
DPRINT("PspTerminateJobObject() is unimplemented!\n");
return STATUS_NOT_IMPLEMENTED;
}
VOID
NTAPI
PspRemoveProcessFromJob(IN PEPROCESS Process,
IN PEJOB Job)
{
/* FIXME */
}
VOID
NTAPI
PspExitProcessFromJob(IN PEJOB Job,
IN PEPROCESS Process)
{
/* FIXME */
}
/*
* @unimplemented
*/
NTSTATUS
NTAPI
NtAssignProcessToJobObject (
HANDLE JobHandle,
HANDLE ProcessHandle)
{
PEPROCESS Process;
KPROCESSOR_MODE PreviousMode;
NTSTATUS Status;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
/* make sure we're having a handle with enough rights, especially the to
terminate the process. otherwise one could abuse the job objects to
terminate processes without having rights granted to do so! The reason
I open the process handle before the job handle is that a simple test showed
that it first complains about a invalid process handle! The other way around
would be simpler though... */
Status = ObReferenceObjectByHandle(
ProcessHandle,
PROCESS_TERMINATE,
PsProcessType,
PreviousMode,
(PVOID*)&Process,
NULL);
if(NT_SUCCESS(Status))
{
if(Process->Job == NULL)
{
PEJOB Job;
Status = ObReferenceObjectByHandle(
JobHandle,
JOB_OBJECT_ASSIGN_PROCESS,
PsJobType,
PreviousMode,
(PVOID*)&Job,
NULL);
if(NT_SUCCESS(Status))
{
/* lock the process so we can safely assign the process. Note that in the
meanwhile another thread could have assigned this process to a job! */
ExAcquireRundownProtection(&Process->RundownProtect);
if(NT_SUCCESS(Status))
{
if(Process->Job == NULL && PsGetProcessSessionId(Process) == Job->SessionId)
{
/* Just store the pointer to the job object in the process, we'll
assign it later. The reason we can't do this here is that locking
the job object might require it to wait, which is a bad thing
while holding the process lock! */
Process->Job = Job;
}
else
{
/* process is already assigned to a job or session id differs! */
Status = STATUS_ACCESS_DENIED;
}
ExReleaseRundownProtection(&Process->RundownProtect);
if(NT_SUCCESS(Status))
{
/* let's actually assign the process to the job as we're not holding
the process lock anymore! */
Status = PspAssignProcessToJob(Process, Job);
}
}
ObDereferenceObject(Job);
}
}
else
{
/* process is already assigned to a job or session id differs! */
Status = STATUS_ACCESS_DENIED;
}
ObDereferenceObject(Process);
}
return Status;
}
NTSTATUS
NTAPI
NtCreateJobSet(IN ULONG NumJob,
IN PJOB_SET_ARRAY UserJobSet,
IN ULONG Flags)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
/*
* @unimplemented
*/
NTSTATUS
NTAPI
NtCreateJobObject (
PHANDLE JobHandle,
ACCESS_MASK DesiredAccess,
POBJECT_ATTRIBUTES ObjectAttributes )
{
HANDLE hJob;
PEJOB Job;
KPROCESSOR_MODE PreviousMode;
PEPROCESS CurrentProcess;
NTSTATUS Status;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
CurrentProcess = PsGetCurrentProcess();
/* check for valid buffers */
if (PreviousMode != KernelMode)
{
_SEH2_TRY
{
ProbeForWriteHandle(JobHandle);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
_SEH2_YIELD(return _SEH2_GetExceptionCode());
}
_SEH2_END;
}
Status = ObCreateObject(PreviousMode,
PsJobType,
ObjectAttributes,
PreviousMode,
NULL,
sizeof(EJOB),
0,
0,
(PVOID*)&Job);
if(NT_SUCCESS(Status))
{
/* FIXME - Zero all fields as we don't yet implement all of them */
RtlZeroMemory(Job, sizeof(EJOB));
/* make sure that early destruction doesn't attempt to remove the object from
the list before it even gets added! */
Job->JobLinks.Flink = NULL;
/* setup the job object - FIXME: More to do! */
InitializeListHead(&Job->JobSetLinks);
InitializeListHead(&Job->ProcessListHead);
/* inherit the session id from the caller */
Job->SessionId = PsGetProcessSessionId(CurrentProcess);
Status = ExInitializeResource(&Job->JobLock);
if(!NT_SUCCESS(Status))
{
DPRINT1("Failed to initialize job lock!!!\n");
ObDereferenceObject(Job);
return Status;
}
KeInitializeEvent(&Job->Event, NotificationEvent, FALSE);
/* link the object into the global job list */
ExAcquireFastMutex(&PsJobListLock);
InsertTailList(&PsJobListHead, &Job->JobLinks);
ExReleaseFastMutex(&PsJobListLock);
Status = ObInsertObject(Job,
NULL,
DesiredAccess,
0,
NULL,
&hJob);
if(NT_SUCCESS(Status))
{
/* pass the handle back to the caller */
_SEH2_TRY
{
/* NOTE: if the caller passed invalid buffers to receive the handle it's his
own fault! the object will still be created and live... It's possible
to find the handle using ObFindHandleForObject()! */
*JobHandle = hJob;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
}
}
return Status;
}
/*
* @implemented
*/
NTSTATUS
NTAPI
NtIsProcessInJob (
IN HANDLE ProcessHandle,
IN HANDLE JobHandle OPTIONAL )
{
KPROCESSOR_MODE PreviousMode;
PEPROCESS Process;
NTSTATUS Status;
PreviousMode = ExGetPreviousMode();
PAGED_CODE();
Status = ObReferenceObjectByHandle(
ProcessHandle,
PROCESS_QUERY_INFORMATION,
PsProcessType,
PreviousMode,
(PVOID*)&Process,
NULL);
if(NT_SUCCESS(Status))
{
/* FIXME - make sure the job object doesn't get exchanged or deleted while trying to
reference it, e.g. by locking it somehow until it is referenced... */
PEJOB ProcessJob = Process->Job;
if(ProcessJob != NULL)
{
if(JobHandle == NULL)
{
/* the process is assigned to a job */
Status = STATUS_PROCESS_IN_JOB;
}
else /* JobHandle != NULL */
{
PEJOB JobObject;
/* get the job object and compare the object pointer with the one assigned to the process */
Status = ObReferenceObjectByHandle(JobHandle,
JOB_OBJECT_QUERY,
PsJobType,
PreviousMode,
(PVOID*)&JobObject,
NULL);
if(NT_SUCCESS(Status))
{
Status = ((ProcessJob == JobObject) ? STATUS_PROCESS_IN_JOB : STATUS_PROCESS_NOT_IN_JOB);
ObDereferenceObject(JobObject);
}
}
}
else
{
/* the process is not assigned to any job */
Status = STATUS_PROCESS_NOT_IN_JOB;
}
ObDereferenceObject(Process);
}
return Status;
}
/*
* @implemented
*/
NTSTATUS
NTAPI
NtOpenJobObject (
PHANDLE JobHandle,
ACCESS_MASK DesiredAccess,
POBJECT_ATTRIBUTES ObjectAttributes)
{
KPROCESSOR_MODE PreviousMode;
HANDLE hJob;
NTSTATUS Status;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
/* check for valid buffers */
if (PreviousMode != KernelMode)
{
_SEH2_TRY
{
ProbeForWriteHandle(JobHandle);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
_SEH2_YIELD(return _SEH2_GetExceptionCode());
}
_SEH2_END;
}
Status = ObOpenObjectByName(ObjectAttributes,
PsJobType,
PreviousMode,
NULL,
DesiredAccess,
NULL,
&hJob);
if(NT_SUCCESS(Status))
{
_SEH2_TRY
{
*JobHandle = hJob;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
}
return Status;
}
/*
* @unimplemented
*/
NTSTATUS
NTAPI
NtQueryInformationJobObject (
HANDLE JobHandle,
JOBOBJECTINFOCLASS JobInformationClass,
PVOID JobInformation,
ULONG JobInformationLength,
PULONG ReturnLength )
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
/*
* @unimplemented
*/
NTSTATUS
NTAPI
NtSetInformationJobObject (
HANDLE JobHandle,
JOBOBJECTINFOCLASS JobInformationClass,
PVOID JobInformation,
ULONG JobInformationLength)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
/*
* @unimplemented
*/
NTSTATUS
NTAPI
NtTerminateJobObject (
HANDLE JobHandle,
NTSTATUS ExitStatus )
{
KPROCESSOR_MODE PreviousMode;
PEJOB Job;
NTSTATUS Status;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
Status = ObReferenceObjectByHandle(
JobHandle,
JOB_OBJECT_TERMINATE,
PsJobType,
PreviousMode,
(PVOID*)&Job,
NULL);
if(NT_SUCCESS(Status))
{
Status = PspTerminateJobObject(
Job,
PreviousMode,
ExitStatus);
ObDereferenceObject(Job);
}
return Status;
}
/*
* @implemented
*/
PVOID
NTAPI
PsGetJobLock ( PEJOB Job )
{
ASSERT(Job);
return (PVOID)&Job->JobLock;
}
/*
* @implemented
*/
ULONG
NTAPI
PsGetJobSessionId ( PEJOB Job )
{
ASSERT(Job);
return Job->SessionId;
}
/*
* @implemented
*/
ULONG
NTAPI
PsGetJobUIRestrictionsClass ( PEJOB Job )
{
ASSERT(Job);
return Job->UIRestrictionsClass;
}
/*
* @unimplemented
*/
VOID
NTAPI
PsSetJobUIRestrictionsClass(PEJOB Job,
ULONG UIRestrictionsClass)
{
ASSERT(Job);
(void)InterlockedExchangeUL(&Job->UIRestrictionsClass, UIRestrictionsClass);
/* FIXME - walk through the job process list and update the restrictions? */
}
/* EOF */