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sys: IRP_MJ_WRITE: implementation

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This commit is contained in:
Bill Zissimopoulos
2016-03-02 15:35:35 -08:00
parent a7f1316ffe
commit d46d1e169a
8 changed files with 760 additions and 49 deletions
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23
src/sys/driver.h
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@ -273,6 +273,7 @@ FSP_IOPREP_DISPATCH FspFsvolSetSecurityPrepare;
FSP_IOCMPL_DISPATCH FspFsvolSetSecurityComplete;
FSP_IOCMPL_DISPATCH FspFsvolSetVolumeInformationComplete;
FSP_IOCMPL_DISPATCH FspFsvolShutdownComplete;
FSP_IOPREP_DISPATCH FspFsvolWritePrepare;
FSP_IOCMPL_DISPATCH FspFsvolWriteComplete;
/* fast I/O and resource acquisition callbacks */
@ -378,13 +379,18 @@ VOID FspUnicodePathSuffix(PUNICODE_STRING Path, PUNICODE_STRING Remain, PUNICODE
NTSTATUS FspCreateGuid(GUID *Guid);
NTSTATUS FspLockUserBuffer(PVOID UserBuffer, ULONG Length,
KPROCESSOR_MODE RequestorMode, LOCK_OPERATION Operation, PMDL *PMdl);
NTSTATUS FspMapLockedPagesInUserMode(PMDL Mdl, PVOID *PAddress);
NTSTATUS FspCcInitializeCacheMap(PFILE_OBJECT FileObject, PCC_FILE_SIZES FileSizes,
BOOLEAN PinAccess, PCACHE_MANAGER_CALLBACKS Callbacks, PVOID CallbackContext);
NTSTATUS FspCcSetFileSizes(PFILE_OBJECT FileObject, PCC_FILE_SIZES FileSizes);
NTSTATUS FspCcCopyWrite(PFILE_OBJECT FileObject, PLARGE_INTEGER FileOffset, ULONG Length,
BOOLEAN Wait, PVOID Buffer);
NTSTATUS FspCcPrepareMdlWrite(PFILE_OBJECT FileObject, PLARGE_INTEGER FileOffset, ULONG Length,
PMDL *PMdlChain, PIO_STATUS_BLOCK IoStatus);
NTSTATUS FspCcMdlWriteComplete(PFILE_OBJECT FileObject, PLARGE_INTEGER FileOffset, PMDL MdlChain);
NTSTATUS FspQuerySecurityDescriptorInfo(SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR SecurityDescriptor, PULONG PLength,
PSECURITY_DESCRIPTOR ObjectsSecurityDescriptor);
#define FspSetTopLevelIrp(Irp) (IoGetTopLevelIrp() ? FALSE : (IoSetTopLevelIrp(Irp), TRUE))
#define FspResetTopLevelIrp(TopLevel) ((TopLevel) ? IoSetTopLevelIrp(0) : (void)0)
/* utility: synchronous work queue */
typedef struct
@ -409,6 +415,19 @@ VOID FspInitializeDelayedWorkItem(FSP_DELAYED_WORK_ITEM *DelayedWorkItem,
PWORKER_THREAD_ROUTINE Routine, PVOID Context);
VOID FspQueueDelayedWorkItem(FSP_DELAYED_WORK_ITEM *DelayedWorkItem, LARGE_INTEGER Delay);
/* utility: safe MDL */
typedef struct
{
PMDL Mdl;
PVOID Buffer;
PMDL UserMdl;
LOCK_OPERATION Operation;
} FSP_SAFE_MDL;
BOOLEAN FspSafeMdlCheck(PMDL Mdl);
NTSTATUS FspSafeMdlCreate(PMDL UserMdl, LOCK_OPERATION Operation, FSP_SAFE_MDL **PSafeMdl);
VOID FspSafeMdlCopyBack(FSP_SAFE_MDL *SafeMdl);
VOID FspSafeMdlDelete(FSP_SAFE_MDL *SafeMdl);
/* IRP context */
#define FspIrpTimestampInfinity ((ULONG)-1L)
#define FspIrpTimestamp(Irp) \