mirror of
https://github.com/reactos/reactos.git
synced 2024-07-03 03:04:22 +00:00
- Io*SymbolicLink should use OBJ_CASE_INSENSITIVE
- Use DELETE instead of SYMBOLIC_LINK_ALL_ACCESS when deleting. - Fix formatting in timer.c - Clear the IO_TIMER structure when creating it. svn path=/trunk/; revision=22722
This commit is contained in:
Alex Ionescu
parent
b42accc93a
commit
d1ebf29520
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@ -1,8 +1,8 @@
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/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: ntoskrnl/io/event.c
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* PURPOSE: I/O Wrappers for the Executive Event Functions
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* FILE: ntoskrnl/io/iocomp.c
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* PURPOSE: I/O Wrappers (called Completion Ports) for Kernel Queues
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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* Thomas Weidenmueller (w3seek@reactos.org)
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*/
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@ -1,11 +1,10 @@
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/* $Id$
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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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/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: ntoskrnl/io/symlink.c
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* PURPOSE: Implements symbolic links
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*
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* PROGRAMMERS: David Welch (welch@mcmail.com)
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* PURPOSE: I/O Wrappers for Symbolic Links
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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* Eric Kohl
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*/
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/* INCLUDES *****************************************************************/
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@ -14,170 +13,106 @@
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#define NDEBUG
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#include <internal/debug.h>
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/* FUNCTIONS ****************************************************************/
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/**********************************************************************
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* NAME EXPORTED
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* IoCreateSymbolicLink
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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*
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* RETURN VALUE
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*
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* REVISIONS
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*
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/*
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* @implemented
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*/
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NTSTATUS STDCALL
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IoCreateSymbolicLink(PUNICODE_STRING SymbolicLinkName,
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PUNICODE_STRING DeviceName)
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NTSTATUS
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NTAPI
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IoCreateSymbolicLink(IN PUNICODE_STRING SymbolicLinkName,
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IN PUNICODE_STRING DeviceName)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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NTSTATUS Status;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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NTSTATUS Status;
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PAGED_CODE();
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ASSERT_IRQL(PASSIVE_LEVEL);
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/* Initialize the object attributes and create the link */
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InitializeObjectAttributes(&ObjectAttributes,
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SymbolicLinkName,
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OBJ_PERMANENT | OBJ_CASE_INSENSITIVE,
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NULL,
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SePublicDefaultSd);
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Status = ZwCreateSymbolicLinkObject(&Handle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes,
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DeviceName);
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if (NT_SUCCESS(Status)) ZwClose(Handle);
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DPRINT("IoCreateSymbolicLink(SymbolicLinkName %wZ, DeviceName %wZ)\n",
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SymbolicLinkName,
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DeviceName);
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InitializeObjectAttributes(&ObjectAttributes,
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SymbolicLinkName,
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OBJ_PERMANENT,
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NULL,
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SePublicDefaultSd);
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Status = ZwCreateSymbolicLinkObject(&Handle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes,
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DeviceName);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("ZwCreateSymbolicLinkObject() failed (Status %lx)\n", Status);
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return(Status);
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}
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ZwClose(Handle);
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return(STATUS_SUCCESS);
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/* Return status */
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return Status;
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}
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/**********************************************************************
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* NAME EXPORTED
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* IoCreateUnprotectedSymbolicLink
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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*
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* RETURN VALUE
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*
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* REVISIONS
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*
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/*
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* @implemented
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*/
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NTSTATUS STDCALL
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IoCreateUnprotectedSymbolicLink(PUNICODE_STRING SymbolicLinkName,
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PUNICODE_STRING DeviceName)
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NTSTATUS
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NTAPI
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IoCreateUnprotectedSymbolicLink(IN PUNICODE_STRING SymbolicLinkName,
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IN PUNICODE_STRING DeviceName)
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{
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SECURITY_DESCRIPTOR SecurityDescriptor;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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NTSTATUS Status;
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SECURITY_DESCRIPTOR SecurityDescriptor;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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NTSTATUS Status;
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PAGED_CODE();
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ASSERT_IRQL(PASSIVE_LEVEL);
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/* Create an SD */
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Status = RtlCreateSecurityDescriptor(&SecurityDescriptor,
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SECURITY_DESCRIPTOR_REVISION);
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if (!NT_SUCCESS(Status)) return Status;
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DPRINT("IoCreateUnprotectedSymbolicLink(SymbolicLinkName %wZ, DeviceName %wZ)\n",
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SymbolicLinkName,
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DeviceName);
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/* Set the DACL */
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Status = RtlSetDaclSecurityDescriptor(&SecurityDescriptor,
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TRUE,
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NULL,
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TRUE);
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if (!NT_SUCCESS(Status)) return Status;
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Status = RtlCreateSecurityDescriptor(&SecurityDescriptor,
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SECURITY_DESCRIPTOR_REVISION);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("RtlCreateSecurityDescriptor() failed (Status %lx)\n", Status);
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return(Status);
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}
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/* Initialize the object attributes and create the link */
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InitializeObjectAttributes(&ObjectAttributes,
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SymbolicLinkName,
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OBJ_PERMANENT | OBJ_CASE_INSENSITIVE,
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NULL,
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&SecurityDescriptor);
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Status = ZwCreateSymbolicLinkObject(&Handle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes,
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DeviceName);
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if (NT_SUCCESS(Status)) ZwClose(Handle);
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Status = RtlSetDaclSecurityDescriptor(&SecurityDescriptor,
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TRUE,
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NULL,
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TRUE);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("RtlSetDaclSecurityDescriptor() failed (Status %lx)\n", Status);
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return(Status);
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}
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InitializeObjectAttributes(&ObjectAttributes,
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SymbolicLinkName,
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OBJ_PERMANENT,
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NULL,
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&SecurityDescriptor);
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Status = ZwCreateSymbolicLinkObject(&Handle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes,
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DeviceName);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("ZwCreateSymbolicLinkObject() failed (Status %lx)\n", Status);
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return(Status);
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}
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ZwClose(Handle);
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return(STATUS_SUCCESS);
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/* Return status */
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return Status;
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}
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/**********************************************************************
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* NAME EXPORTED
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* IoDeleteSymbolicLink
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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*
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* RETURN VALUE
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*
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* REVISIONS
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*
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/*
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* @implemented
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*/
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NTSTATUS STDCALL
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IoDeleteSymbolicLink(PUNICODE_STRING SymbolicLinkName)
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NTSTATUS
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NTAPI
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IoDeleteSymbolicLink(IN PUNICODE_STRING SymbolicLinkName)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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NTSTATUS Status;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE Handle;
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NTSTATUS Status;
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PAGED_CODE();
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ASSERT_IRQL(PASSIVE_LEVEL);
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/* Initialize the object attributes and open the link */
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InitializeObjectAttributes(&ObjectAttributes,
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SymbolicLinkName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = ZwOpenSymbolicLinkObject(&Handle, DELETE, &ObjectAttributes);
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if (!NT_SUCCESS(Status)) return Status;
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DPRINT("IoDeleteSymbolicLink (SymbolicLinkName %S)\n",
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SymbolicLinkName->Buffer);
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/* Make the link temporary and close its handle */
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Status = ZwMakeTemporaryObject(Handle);
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if (NT_SUCCESS(Status)) ZwClose(Handle);
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InitializeObjectAttributes(&ObjectAttributes,
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SymbolicLinkName,
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OBJ_OPENLINK,
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NULL,
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NULL);
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Status = ZwOpenSymbolicLinkObject(&Handle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes);
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if (!NT_SUCCESS(Status))
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return(Status);
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Status = ZwMakeTemporaryObject(Handle);
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ZwClose(Handle);
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return(Status);
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/* Return status */
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return Status;
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}
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/* EOF */
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@ -1,12 +1,9 @@
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/* $Id$
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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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* FILE: ntoskrnl/io/timer.c
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* PURPOSE: IO timers
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*
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* PROGRAMMERS: David Welch (welch@mcmail.com)
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* Alex Ionescu (alex@relsoft.net)
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/*
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* PROJECT: ReactOS Kernel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: ntoskrnl/io/iocomp.c
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* PURPOSE: I/O Wrappers for Executive Timers
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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*/
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/* INCLUDES *****************************************************************/
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@ -28,196 +25,181 @@ KTIMER IopTimer;
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/* Keep count of how many timers we have */
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ULONG IopTimerCount = 0;
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/* FUNCTIONS *****************************************************************/
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/* PRIVATE FUNCTIONS *********************************************************/
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static VOID STDCALL
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VOID
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NTAPI
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IopTimerDispatch(IN PKDPC Dpc,
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IN PVOID DeferredContext,
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IN PVOID SystemArgument1,
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IN PVOID SystemArgument2)
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IN PVOID DeferredContext,
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IN PVOID SystemArgument1,
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IN PVOID SystemArgument2)
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{
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KIRQL OldIrql;
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PLIST_ENTRY TimerEntry;
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PIO_TIMER Timer;
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ULONG i;
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KIRQL OldIrql;
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PLIST_ENTRY TimerEntry;
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PIO_TIMER Timer;
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ULONG i;
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DPRINT("Dispatching IO Timers. There are: %x \n", IopTimerCount);
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/* Check if any Timers are actualyl enabled as of now */
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if (IopTimerCount)
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{
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/* Lock the Timers */
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KeAcquireSpinLock(&IopTimerLock, &OldIrql);
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/* Check if any Timers are actualyl enabled as of now */
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if (IopTimerCount) {
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/* Call the Timer Routine of each enabled Timer */
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for (TimerEntry = IopTimerQueueHead.Flink, i = IopTimerCount;
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(TimerEntry != &IopTimerQueueHead) && i;
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TimerEntry = TimerEntry->Flink)
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{
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/* Get the timer and check if it's enabled */
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Timer = CONTAINING_RECORD(TimerEntry, IO_TIMER, IoTimerList);
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if (Timer->TimerEnabled)
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{
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/* Call the timer routine */
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Timer->TimerRoutine(Timer->DeviceObject, Timer->Context);
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i--;
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}
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}
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/* Lock the Timers */
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KeAcquireSpinLock(&IopTimerLock, &OldIrql);
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/* Call the Timer Routine of each enabled Timer */
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for(TimerEntry = IopTimerQueueHead.Flink, i = IopTimerCount;
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(TimerEntry != &IopTimerQueueHead) && i;
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TimerEntry = TimerEntry->Flink) {
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Timer = CONTAINING_RECORD(TimerEntry, IO_TIMER, IoTimerList);
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if (Timer->TimerEnabled) {
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DPRINT("Dispatching a Timer Routine: 0x%p for Device Object: 0x%p \n",
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Timer->TimerRoutine,
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Timer->DeviceObject);
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Timer->TimerRoutine(Timer->DeviceObject, Timer->Context);
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i--;
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}
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}
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/* Unlock the Timers */
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KeReleaseSpinLock(&IopTimerLock, OldIrql);
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}
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/* Unlock the Timers */
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KeReleaseSpinLock(&IopTimerLock, OldIrql);
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}
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}
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VOID
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STDCALL
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IopRemoveTimerFromTimerList(
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IN PIO_TIMER Timer
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)
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NTAPI
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IopRemoveTimerFromTimerList(IN PIO_TIMER Timer)
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{
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KIRQL OldIrql;
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KIRQL OldIrql;
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/* Lock Timers */
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KeAcquireSpinLock(&IopTimerLock, &OldIrql);
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/* Lock Timers */
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KeAcquireSpinLock(&IopTimerLock, &OldIrql);
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/* Remove Timer from the List and Drop the Timer Count if Enabled */
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RemoveEntryList(&Timer->IoTimerList);
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if (Timer->TimerEnabled) IopTimerCount--;
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/* Remove Timer from the List and Drop the Timer Count if Enabled */
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RemoveEntryList(&Timer->IoTimerList);
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if (Timer->TimerEnabled) IopTimerCount--;
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/* Unlock the Timers */
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KeReleaseSpinLock(&IopTimerLock, OldIrql);
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/* Unlock the Timers */
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KeReleaseSpinLock(&IopTimerLock, OldIrql);
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}
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VOID
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FASTCALL
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IopInitTimerImplementation(VOID)
|
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/* FUNCTION: Initializes the IO Timer Object Implementation
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* RETURNS: NOTHING
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*/
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{
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LARGE_INTEGER ExpireTime;
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LARGE_INTEGER ExpireTime;
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|
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/* Initialize Timer List Lock */
|
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KeInitializeSpinLock(&IopTimerLock);
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/* Initialize Timer List Lock */
|
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KeInitializeSpinLock(&IopTimerLock);
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|
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/* Initialize Timer List */
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InitializeListHead(&IopTimerQueueHead);
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/* Initialize Timer List */
|
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InitializeListHead(&IopTimerQueueHead);
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|
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/* Initialize the DPC/Timer which will call the other Timer Routines */
|
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ExpireTime.QuadPart = -10000000;
|
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KeInitializeDpc(&IopTimerDpc, IopTimerDispatch, NULL);
|
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KeInitializeTimerEx(&IopTimer, SynchronizationTimer);
|
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KeSetTimerEx(&IopTimer, ExpireTime, 1000, &IopTimerDpc);
|
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/* Initialize the DPC/Timer which will call the other Timer Routines */
|
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ExpireTime.QuadPart = -10000000;
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KeInitializeDpc(&IopTimerDpc, IopTimerDispatch, NULL);
|
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KeInitializeTimerEx(&IopTimer, SynchronizationTimer);
|
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KeSetTimerEx(&IopTimer, ExpireTime, 1000, &IopTimerDpc);
|
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}
|
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|
||||
/* PUBLIC FUNCTIONS **********************************************************/
|
||||
|
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/*
|
||||
* @implemented
|
||||
*/
|
||||
NTSTATUS
|
||||
STDCALL
|
||||
IoInitializeTimer(PDEVICE_OBJECT DeviceObject,
|
||||
PIO_TIMER_ROUTINE TimerRoutine,
|
||||
PVOID Context)
|
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/*
|
||||
* FUNCTION: Sets up a driver-supplied IoTimer routine associated with a given
|
||||
* device object
|
||||
* ARGUMENTS:
|
||||
* DeviceObject = Device object whose timer is be initialized
|
||||
* TimerRoutine = Driver supplied routine which will be called once per
|
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* second if the timer is active
|
||||
* Context = Driver supplied context to be passed to the TimerRoutine
|
||||
* RETURNS: Status
|
||||
*/
|
||||
NTAPI
|
||||
IoInitializeTimer(IN PDEVICE_OBJECT DeviceObject,
|
||||
IN PIO_TIMER_ROUTINE TimerRoutine,
|
||||
IN PVOID Context)
|
||||
{
|
||||
DPRINT("IoInitializeTimer() called for Device Object: 0x%p with Routine: 0x%p \n", DeviceObject, TimerRoutine);
|
||||
PIO_TIMER IoTimer = DeviceObject->Timer;
|
||||
PAGED_CODE();
|
||||
|
||||
/* Allocate Timer */
|
||||
if (!DeviceObject->Timer) {
|
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DeviceObject->Timer = ExAllocatePoolWithTag(NonPagedPool,
|
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sizeof(IO_TIMER),
|
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TAG_IO_TIMER);
|
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if (!DeviceObject->Timer) return STATUS_INSUFFICIENT_RESOURCES;
|
||||
/* Check if we don't have a timer yet */
|
||||
if (!IoTimer)
|
||||
{
|
||||
/* Allocate Timer */
|
||||
IoTimer = ExAllocatePoolWithTag(NonPagedPool,
|
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sizeof(IO_TIMER),
|
||||
TAG_IO_TIMER);
|
||||
if (!IoTimer) return STATUS_INSUFFICIENT_RESOURCES;
|
||||
|
||||
/* Set up the Timer Structure */
|
||||
DeviceObject->Timer->Type = IO_TYPE_TIMER;
|
||||
DeviceObject->Timer->DeviceObject = DeviceObject;
|
||||
}
|
||||
/* Set up the Timer Structure */
|
||||
RtlZeroMemory(IoTimer, sizeof(IO_TIMER));
|
||||
IoTimer->Type = IO_TYPE_TIMER;
|
||||
IoTimer->DeviceObject = DeviceObject;
|
||||
DeviceObject->Timer = IoTimer;
|
||||
}
|
||||
|
||||
DeviceObject->Timer->TimerRoutine = TimerRoutine;
|
||||
DeviceObject->Timer->Context = Context;
|
||||
DeviceObject->Timer->TimerEnabled = FALSE;
|
||||
/* Setup the timer routine and context */
|
||||
IoTimer->TimerRoutine = TimerRoutine;
|
||||
IoTimer->Context = Context;
|
||||
|
||||
/* Add it to the Timer List */
|
||||
ExInterlockedInsertTailList(&IopTimerQueueHead,
|
||||
&DeviceObject->Timer->IoTimerList,
|
||||
&IopTimerLock);
|
||||
/* Add it to the Timer List */
|
||||
ExInterlockedInsertTailList(&IopTimerQueueHead,
|
||||
&IoTimer->IoTimerList,
|
||||
&IopTimerLock);
|
||||
|
||||
/* Return Success */
|
||||
DPRINT("IoInitializeTimer() Completed\n");
|
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return(STATUS_SUCCESS);
|
||||
/* Return Success */
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
*/
|
||||
VOID
|
||||
STDCALL
|
||||
IoStartTimer(PDEVICE_OBJECT DeviceObject)
|
||||
/*
|
||||
* FUNCTION: Starts a timer so the driver-supplied IoTimer routine will be
|
||||
* called once per second
|
||||
* ARGUMENTS:
|
||||
* DeviceObject = Device whose timer is to be started
|
||||
*/
|
||||
NTAPI
|
||||
IoStartTimer(IN PDEVICE_OBJECT DeviceObject)
|
||||
{
|
||||
KIRQL OldIrql;
|
||||
KIRQL OldIrql;
|
||||
PIO_TIMER IoTimer = DeviceObject->Timer;
|
||||
|
||||
DPRINT("IoStartTimer for Device Object: 0x%p\n", DeviceObject);
|
||||
/* Make sure the device isn't unloading */
|
||||
if (!(((PEXTENDED_DEVOBJ_EXTENSION)(DeviceObject->DeviceObjectExtension))->
|
||||
ExtensionFlags & (DOE_UNLOAD_PENDING |
|
||||
DOE_DELETE_PENDING |
|
||||
DOE_REMOVE_PENDING |
|
||||
DOE_REMOVE_PROCESSED)))
|
||||
{
|
||||
/* Lock Timers */
|
||||
KeAcquireSpinLock(&IopTimerLock, &OldIrql);
|
||||
|
||||
/* Lock Timers */
|
||||
KeAcquireSpinLock(&IopTimerLock, &OldIrql);
|
||||
/* Check if the timer isn't already enabled */
|
||||
if (!IoTimer->TimerEnabled)
|
||||
{
|
||||
/* Enable it and increase the timer count */
|
||||
IoTimer->TimerEnabled = TRUE;
|
||||
IopTimerCount++;
|
||||
}
|
||||
|
||||
/* If the timer isn't already enabled, enable it and increase IO Timer Count*/
|
||||
if (!DeviceObject->Timer->TimerEnabled) {
|
||||
DeviceObject->Timer->TimerEnabled = TRUE;
|
||||
IopTimerCount++;
|
||||
}
|
||||
|
||||
/* Unlock Timers */
|
||||
KeReleaseSpinLock(&IopTimerLock, OldIrql);
|
||||
DPRINT("IoStartTimer Completed for Device Object: 0x%p New Count: %x \n", DeviceObject, IopTimerCount);
|
||||
/* Unlock Timers */
|
||||
KeReleaseSpinLock(&IopTimerLock, OldIrql);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* @implemented
|
||||
*/
|
||||
VOID
|
||||
STDCALL
|
||||
NTAPI
|
||||
IoStopTimer(PDEVICE_OBJECT DeviceObject)
|
||||
/*
|
||||
* FUNCTION: Disables for a specified device object so the driver-supplied
|
||||
* IoTimer is not called
|
||||
* ARGUMENTS:
|
||||
* DeviceObject = Device whose timer is to be stopped
|
||||
*/
|
||||
{
|
||||
KIRQL OldIrql;
|
||||
KIRQL OldIrql;
|
||||
PIO_TIMER IoTimer = DeviceObject->Timer;
|
||||
|
||||
DPRINT("IoStopTimer for Device Object: 0x%p\n", DeviceObject);
|
||||
/* Lock Timers */
|
||||
KeAcquireSpinLock(&IopTimerLock, &OldIrql);
|
||||
|
||||
/* Lock Timers */
|
||||
KeAcquireSpinLock(&IopTimerLock, &OldIrql);
|
||||
/* Check if the timer is enabled */
|
||||
if (IoTimer->TimerEnabled)
|
||||
{
|
||||
/* Disable it and decrease the timer count */
|
||||
IoTimer->TimerEnabled = FALSE;
|
||||
IopTimerCount--;
|
||||
}
|
||||
|
||||
/* If the timer is enabled, disable it and decrease IO Timer Count*/
|
||||
if (DeviceObject->Timer->TimerEnabled) {
|
||||
DeviceObject->Timer->TimerEnabled = FALSE;
|
||||
IopTimerCount--;
|
||||
}
|
||||
|
||||
/* Unlock Timers */
|
||||
KeReleaseSpinLock(&IopTimerLock, OldIrql);
|
||||
DPRINT("IoStopTimer Completed for Device Object: 0x%p New Count: %x \n", DeviceObject, IopTimerCount);
|
||||
/* Unlock Timers */
|
||||
KeReleaseSpinLock(&IopTimerLock, OldIrql);
|
||||
}
|
||||
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
Loading…
Reference in a new issue