mirror of
https://github.com/reactos/reactos.git
synced 2024-12-29 02:25:17 +00:00
Rename HANDLE_REP to HANDLE_ENTRY.
svn path=/trunk/; revision=10842
This commit is contained in:
Eric Kohl
parent
b6a00f0a9a
commit
7347219eb4
1 changed files with 81 additions and 74 deletions
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: handle.c,v 1.59 2004/08/20 23:46:21 navaraf Exp $
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/* $Id: handle.c,v 1.60 2004/09/13 14:43:50 ekohl Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -38,15 +38,15 @@
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/*
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* PURPOSE: Defines a handle
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*/
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typedef struct
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typedef struct _HANDLE_ENTRY
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{
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PVOID ObjectBody;
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ACCESS_MASK GrantedAccess;
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} HANDLE_REP, *PHANDLE_REP;
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PVOID ObjectBody;
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ACCESS_MASK GrantedAccess;
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} HANDLE_ENTRY, *PHANDLE_ENTRY;
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#define HANDLE_BLOCK_ENTRIES \
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(((4 * PAGE_SIZE) - \
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(sizeof(LIST_ENTRY) + sizeof(ULONG))) / sizeof(HANDLE_REP))
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(sizeof(LIST_ENTRY) + sizeof(ULONG))) / sizeof(HANDLE_ENTRY))
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#define OB_HANDLE_FLAG_MASK 0x00000007
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#define OB_HANDLE_FLAG_AUDIT 0x00000004
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@ -67,7 +67,7 @@ typedef struct
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LIST_ENTRY entry;
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ULONG allocation_hint;
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ULONG allocation_count;
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HANDLE_REP handles[HANDLE_BLOCK_ENTRIES];
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HANDLE_ENTRY handles[HANDLE_BLOCK_ENTRIES];
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} HANDLE_BLOCK, *PHANDLE_BLOCK;
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@ -78,8 +78,6 @@ typedef struct
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/* FUNCTIONS ***************************************************************/
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static PHANDLE_REP
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ObpGetObjectByHandle(PHANDLE_TABLE HandleTable, HANDLE h, HANDLE_BLOCK **Block)
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/*
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* FUNCTION: Get the data structure for a handle
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* ARGUMENTS:
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@ -88,10 +86,14 @@ ObpGetObjectByHandle(PHANDLE_TABLE HandleTable, HANDLE h, HANDLE_BLOCK **Block)
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* ARGUMENTS: A pointer to the information about the handle on success,
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* NULL on failure
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*/
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static PHANDLE_ENTRY
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ObpGetObjectByHandle(PHANDLE_TABLE HandleTable,
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HANDLE h,
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HANDLE_BLOCK **Block)
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{
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PLIST_ENTRY current;
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unsigned int handle = (((unsigned int)h) >> 2) - 1;
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unsigned int count=handle/HANDLE_BLOCK_ENTRIES;
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unsigned int count = handle / HANDLE_BLOCK_ENTRIES;
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HANDLE_BLOCK* blk = NULL;
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unsigned int i;
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@ -100,7 +102,7 @@ ObpGetObjectByHandle(PHANDLE_TABLE HandleTable, HANDLE h, HANDLE_BLOCK **Block)
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current = HandleTable->ListHead.Flink;
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DPRINT("current %x\n",current);
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for (i=0;i<count;i++)
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for (i = 0; i < count; i++)
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{
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current = current->Flink;
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if (current == (&(HandleTable->ListHead)))
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@ -123,26 +125,26 @@ ObpQueryHandleAttributes(HANDLE Handle,
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{
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PEPROCESS Process;
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KIRQL oldIrql;
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PHANDLE_REP HandleRep;
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PHANDLE_ENTRY HandleEntry;
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DPRINT("ObpQueryHandleAttributes(Handle %x)\n", Handle);
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Process = PsGetCurrentProcess();
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KeAcquireSpinLock(&Process->HandleTable.ListLock, &oldIrql);
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HandleRep = ObpGetObjectByHandle(&Process->HandleTable,
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Handle,
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NULL);
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if (HandleRep == NULL)
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HandleEntry = ObpGetObjectByHandle(&Process->HandleTable,
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Handle,
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NULL);
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if (HandleEntry == NULL)
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{
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KeReleaseSpinLock(&Process->HandleTable.ListLock, oldIrql);
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return STATUS_INVALID_HANDLE;
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}
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HandleInfo->Inherit =
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((ULONG_PTR)HandleRep->ObjectBody & OB_HANDLE_FLAG_INHERIT);
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((ULONG_PTR)HandleEntry->ObjectBody & OB_HANDLE_FLAG_INHERIT);
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HandleInfo->ProtectFromClose =
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((ULONG_PTR)HandleRep->ObjectBody & OB_HANDLE_FLAG_PROTECT);
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((ULONG_PTR)HandleEntry->ObjectBody & OB_HANDLE_FLAG_PROTECT);
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KeReleaseSpinLock(&Process->HandleTable.ListLock, oldIrql);
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@ -154,33 +156,33 @@ NTSTATUS
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ObpSetHandleAttributes(HANDLE Handle,
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POBJECT_HANDLE_ATTRIBUTE_INFORMATION HandleInfo)
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{
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PHANDLE_ENTRY HandleEntry;
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PEPROCESS Process;
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KIRQL oldIrql;
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PHANDLE_REP HandleRep;
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DPRINT("ObpQueryHandleAttributes(Handle %x)\n", Handle);
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Process = PsGetCurrentProcess();
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KeAcquireSpinLock(&Process->HandleTable.ListLock, &oldIrql);
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HandleRep = ObpGetObjectByHandle(&Process->HandleTable,
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Handle,
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NULL);
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if (HandleRep == NULL)
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HandleEntry = ObpGetObjectByHandle(&Process->HandleTable,
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Handle,
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NULL);
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if (HandleEntry == NULL)
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{
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KeReleaseSpinLock(&Process->HandleTable.ListLock, oldIrql);
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return STATUS_INVALID_HANDLE;
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}
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if (HandleInfo->Inherit)
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HandleRep->ObjectBody = (PVOID)((ULONG_PTR)HandleRep->ObjectBody | OB_HANDLE_FLAG_INHERIT);
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HandleEntry->ObjectBody = (PVOID)((ULONG_PTR)HandleEntry->ObjectBody | OB_HANDLE_FLAG_INHERIT);
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else
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HandleRep->ObjectBody = (PVOID)((ULONG_PTR)HandleRep->ObjectBody & ~OB_HANDLE_FLAG_INHERIT);
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HandleEntry->ObjectBody = (PVOID)((ULONG_PTR)HandleEntry->ObjectBody & ~OB_HANDLE_FLAG_INHERIT);
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if (HandleInfo->ProtectFromClose)
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HandleRep->ObjectBody = (PVOID)((ULONG_PTR)HandleRep->ObjectBody | OB_HANDLE_FLAG_PROTECT);
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HandleEntry->ObjectBody = (PVOID)((ULONG_PTR)HandleEntry->ObjectBody | OB_HANDLE_FLAG_PROTECT);
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else
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HandleRep->ObjectBody = (PVOID)((ULONG_PTR)HandleRep->ObjectBody & ~OB_HANDLE_FLAG_PROTECT);
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HandleEntry->ObjectBody = (PVOID)((ULONG_PTR)HandleEntry->ObjectBody & ~OB_HANDLE_FLAG_PROTECT);
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/* FIXME: Do we need to set anything in the object header??? */
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@ -197,22 +199,23 @@ ObDuplicateObject(PEPROCESS SourceProcess,
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PHANDLE TargetHandle,
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ACCESS_MASK DesiredAccess,
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BOOLEAN InheritHandle,
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ULONG Options)
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ULONG Options)
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{
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KIRQL oldIrql;
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PHANDLE_REP SourceHandleRep;
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PHANDLE_ENTRY SourceHandleEntry;
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PVOID ObjectBody;
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KeAcquireSpinLock(&SourceProcess->HandleTable.ListLock, &oldIrql);
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SourceHandleRep = ObpGetObjectByHandle(&SourceProcess->HandleTable,
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SourceHandle,
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NULL);
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if (SourceHandleRep == NULL)
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SourceHandleEntry = ObpGetObjectByHandle(&SourceProcess->HandleTable,
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SourceHandle,
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NULL);
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if (SourceHandleEntry == NULL)
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{
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KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
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return(STATUS_INVALID_HANDLE);
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return STATUS_INVALID_HANDLE;
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}
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ObjectBody = OB_ENTRY_TO_POINTER(SourceHandleRep->ObjectBody);
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ObjectBody = OB_ENTRY_TO_POINTER(SourceHandleEntry->ObjectBody);
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ObReferenceObjectByPointer(ObjectBody,
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0,
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NULL,
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@ -220,9 +223,9 @@ ObDuplicateObject(PEPROCESS SourceProcess,
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if (Options & DUPLICATE_SAME_ACCESS)
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{
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DesiredAccess = SourceHandleRep->GrantedAccess;
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DesiredAccess = SourceHandleEntry->GrantedAccess;
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}
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KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
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ObCreateHandle(TargetProcess,
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ObjectBody,
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@ -234,9 +237,10 @@ ObDuplicateObject(PEPROCESS SourceProcess,
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{
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ZwClose(SourceHandle);
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}
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ObDereferenceObject(ObjectBody);
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return(STATUS_SUCCESS);
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return STATUS_SUCCESS;
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}
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/*
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@ -277,7 +281,7 @@ NtDuplicateObject (IN HANDLE SourceProcessHandle,
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{
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PEPROCESS SourceProcess;
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PEPROCESS TargetProcess;
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PHANDLE_REP SourceHandleRep;
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PHANDLE_ENTRY SourceHandleEntry;
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KIRQL oldIrql;
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PVOID ObjectBody;
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HANDLE TargetHandle;
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@ -295,6 +299,7 @@ NtDuplicateObject (IN HANDLE SourceProcessHandle,
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{
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return(Status);
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}
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Status = ObReferenceObjectByHandle(TargetProcessHandle,
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PROCESS_DUP_HANDLE,
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NULL,
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@ -326,29 +331,29 @@ NtDuplicateObject (IN HANDLE SourceProcessHandle,
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else
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{
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KeAcquireSpinLock(&SourceProcess->HandleTable.ListLock, &oldIrql);
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SourceHandleRep = ObpGetObjectByHandle(&SourceProcess->HandleTable,
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SourceHandle,
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NULL);
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if (SourceHandleRep == NULL)
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SourceHandleEntry = ObpGetObjectByHandle(&SourceProcess->HandleTable,
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SourceHandle,
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NULL);
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if (SourceHandleEntry == NULL)
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{
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KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
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ObDereferenceObject(SourceProcess);
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ObDereferenceObject(TargetProcess);
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return(STATUS_INVALID_HANDLE);
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}
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ObjectBody = OB_ENTRY_TO_POINTER(SourceHandleRep->ObjectBody);
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ObjectBody = OB_ENTRY_TO_POINTER(SourceHandleEntry->ObjectBody);
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ObReferenceObjectByPointer(ObjectBody,
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0,
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NULL,
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UserMode);
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if (Options & DUPLICATE_SAME_ACCESS)
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{
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DesiredAccess = SourceHandleRep->GrantedAccess;
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DesiredAccess = SourceHandleEntry->GrantedAccess;
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}
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KeReleaseSpinLock(&SourceProcess->HandleTable.ListLock, oldIrql);
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if (!((ULONG_PTR)SourceHandleRep->ObjectBody & OB_HANDLE_FLAG_INHERIT))
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if (!((ULONG_PTR)SourceHandleEntry->ObjectBody & OB_HANDLE_FLAG_INHERIT))
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{
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ObDereferenceObject(TargetProcess);
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ObDereferenceObject(SourceProcess);
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@ -545,7 +550,7 @@ ObDeleteHandle(PEPROCESS Process,
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HANDLE Handle,
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PVOID *ObjectBody)
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{
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PHANDLE_REP Rep;
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PHANDLE_ENTRY HandleEntry;
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PVOID Body;
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KIRQL oldIrql;
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PHANDLE_TABLE HandleTable;
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@ -558,22 +563,22 @@ ObDeleteHandle(PEPROCESS Process,
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KeAcquireSpinLock(&HandleTable->ListLock, &oldIrql);
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Rep = ObpGetObjectByHandle(HandleTable, Handle, &Block);
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if (Rep == NULL)
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HandleEntry = ObpGetObjectByHandle(HandleTable, Handle, &Block);
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if (HandleEntry == NULL)
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{
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KeReleaseSpinLock(&HandleTable->ListLock, oldIrql);
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*ObjectBody = NULL;
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return STATUS_INVALID_HANDLE;
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}
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if ((ULONG_PTR)Rep->ObjectBody & OB_HANDLE_FLAG_PROTECT)
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if ((ULONG_PTR)HandleEntry->ObjectBody & OB_HANDLE_FLAG_PROTECT)
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{
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KeReleaseSpinLock(&HandleTable->ListLock, oldIrql);
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*ObjectBody = NULL;
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return STATUS_HANDLE_NOT_CLOSABLE;
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}
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Body = OB_ENTRY_TO_POINTER(Rep->ObjectBody);
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Body = OB_ENTRY_TO_POINTER(HandleEntry->ObjectBody);
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DPRINT("ObjectBody %x\n", Body);
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if (Body == NULL)
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{
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@ -588,7 +593,7 @@ ObDeleteHandle(PEPROCESS Process,
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NULL,
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UserMode);
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InterlockedDecrement(&Header->HandleCount);
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Rep->ObjectBody = NULL;
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HandleEntry->ObjectBody = NULL;
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Block->allocation_count--;
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Block->allocation_hint = (ULONG_PTR)Handle % HANDLE_BLOCK_ENTRIES;
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@ -609,11 +614,12 @@ ObDeleteHandle(PEPROCESS Process,
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}
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NTSTATUS ObCreateHandle(PEPROCESS Process,
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PVOID ObjectBody,
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ACCESS_MASK GrantedAccess,
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BOOLEAN Inherit,
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PHANDLE HandleReturn)
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NTSTATUS
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ObCreateHandle(PEPROCESS Process,
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PVOID ObjectBody,
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ACCESS_MASK GrantedAccess,
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BOOLEAN Inherit,
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PHANDLE HandleReturn)
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/*
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* FUNCTION: Add a handle referencing an object
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* ARGUMENTS:
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@ -720,23 +726,23 @@ ObQueryObjectAuditingByHandle(IN HANDLE Handle,
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{
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PEPROCESS Process;
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KIRQL oldIrql;
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PHANDLE_REP HandleRep;
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PHANDLE_ENTRY HandleEntry;
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DPRINT("ObQueryObjectAuditingByHandle(Handle %x)\n", Handle);
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Process = PsGetCurrentProcess();
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KeAcquireSpinLock(&Process->HandleTable.ListLock, &oldIrql);
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HandleRep = ObpGetObjectByHandle(&Process->HandleTable,
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Handle,
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NULL);
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if (HandleRep == NULL)
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HandleEntry = ObpGetObjectByHandle(&Process->HandleTable,
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Handle,
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NULL);
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if (HandleEntry == NULL)
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{
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KeReleaseSpinLock(&Process->HandleTable.ListLock, oldIrql);
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return STATUS_INVALID_HANDLE;
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}
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*GenerateOnClose = (BOOLEAN)((ULONG_PTR)HandleRep->ObjectBody | OB_HANDLE_FLAG_AUDIT);
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*GenerateOnClose = (BOOLEAN)((ULONG_PTR)HandleEntry->ObjectBody | OB_HANDLE_FLAG_AUDIT);
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KeReleaseSpinLock(&Process->HandleTable.ListLock, oldIrql);
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@ -768,7 +774,7 @@ ObReferenceObjectByHandle(HANDLE Handle,
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* RETURNS: Status
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*/
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{
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PHANDLE_REP HandleRep;
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PHANDLE_ENTRY HandleEntry;
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POBJECT_HEADER ObjectHeader;
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KIRQL oldIrql;
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PVOID ObjectBody;
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@ -814,6 +820,7 @@ ObReferenceObjectByHandle(HANDLE Handle,
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CHECKPOINT;
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return(STATUS_OBJECT_TYPE_MISMATCH);
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}
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if (Handle == NtCurrentThread() &&
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(ObjectType == PsThreadType || ObjectType == NULL))
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{
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@ -844,16 +851,16 @@ ObReferenceObjectByHandle(HANDLE Handle,
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KeAcquireSpinLock(&PsGetCurrentProcess()->HandleTable.ListLock,
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&oldIrql);
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HandleRep = ObpGetObjectByHandle(&PsGetCurrentProcess()->HandleTable,
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Handle,
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NULL);
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if (HandleRep == NULL || HandleRep->ObjectBody == 0)
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HandleEntry = ObpGetObjectByHandle(&PsGetCurrentProcess()->HandleTable,
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Handle,
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NULL);
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if (HandleEntry == NULL || HandleEntry->ObjectBody == 0)
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{
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KeReleaseSpinLock(&PsGetCurrentProcess()->HandleTable.ListLock,
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oldIrql);
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return(STATUS_INVALID_HANDLE);
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}
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ObjectBody = OB_ENTRY_TO_POINTER(HandleRep->ObjectBody);
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ObjectBody = OB_ENTRY_TO_POINTER(HandleEntry->ObjectBody);
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DPRINT("ObjectBody %p\n",ObjectBody);
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ObjectHeader = BODY_TO_HEADER(ObjectBody);
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DPRINT("ObjectHeader->RefCount %lu\n",ObjectHeader->RefCount);
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@ -861,8 +868,8 @@ ObReferenceObjectByHandle(HANDLE Handle,
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0,
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NULL,
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UserMode);
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Attributes = (ULONG_PTR)HandleRep->ObjectBody & OB_HANDLE_FLAG_MASK;
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GrantedAccess = HandleRep->GrantedAccess;
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Attributes = (ULONG_PTR)HandleEntry->ObjectBody & OB_HANDLE_FLAG_MASK;
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GrantedAccess = HandleEntry->GrantedAccess;
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KeReleaseSpinLock(&PsGetCurrentProcess()->HandleTable.ListLock,
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oldIrql);
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