Ros-diffs November 2017

ros-diffs@reactos.org

22 participants
186 discussions

[reactos] 01/01: [USBPORT] Type-safe function signature (PVOID -> PUSBPORT_xxx).

by Vadim Galyant

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=73bfc3c8979d9127a7dd8… commit 73bfc3c8979d9127a7dd8214ea9b954cd13e39df Author: Vadim Galyant <vgal(a)rambler.ru> AuthorDate: Thu Nov 23 20:14:06 2017 +0900 [USBPORT] Type-safe function signature (PVOID -> PUSBPORT_xxx). --- drivers/usb/usbport/device.c | 4 +- drivers/usb/usbport/endpoint.c | 22 ++-- drivers/usb/usbport/roothub.c | 4 +- drivers/usb/usbport/usbport.h | 4 +- sdk/include/reactos/drivers/usbport/usbmport.h | 139 +++++++++++++------------ 5 files changed, 89 insertions(+), 84 deletions(-) diff --git a/drivers/usb/usbport/device.c b/drivers/usb/usbport/device.c index b9063a70bd..f7180aaf96 100644 --- a/drivers/usb/usbport/device.c +++ b/drivers/usb/usbport/device.c @@ -1524,7 +1524,7 @@ USBPORT_RestoreDevice(IN PDEVICE_OBJECT FdoDevice, PUSBPORT_DEVICE_EXTENSION FdoExtension; PLIST_ENTRY iHandleList; PUSBPORT_ENDPOINT Endpoint; - ULONG EndpointRequirements[2] = {0}; + USBPORT_ENDPOINT_REQUIREMENTS EndpointRequirements = {0}; USB_DEFAULT_PIPE_SETUP_PACKET SetupPacket; NTSTATUS Status = STATUS_SUCCESS; USBD_STATUS USBDStatus; @@ -1707,7 +1707,7 @@ USBPORT_RestoreDevice(IN PDEVICE_OBJECT FdoDevice, Packet->QueryEndpointRequirements(FdoExtension->MiniPortExt, &Endpoint->EndpointProperties, - EndpointRequirements); + &EndpointRequirements); KeReleaseSpinLock(&FdoExtension->MiniportSpinLock, OldIrql); diff --git a/drivers/usb/usbport/endpoint.c b/drivers/usb/usbport/endpoint.c index f933922e8b..7cf250e76c 100644 --- a/drivers/usb/usbport/endpoint.c +++ b/drivers/usb/usbport/endpoint.c @@ -620,7 +620,7 @@ USBPORT_OpenPipe(IN PDEVICE_OBJECT FdoDevice, UCHAR Direction; UCHAR Interval; UCHAR Period; - ULONG TransferParams[2] = {0}; + USBPORT_ENDPOINT_REQUIREMENTS EndpointRequirements = {0}; PUSBPORT_COMMON_BUFFER_HEADER HeaderBuffer; MPSTATUS MpStatus; USBD_STATUS USBDStatus; @@ -832,27 +832,27 @@ USBPORT_OpenPipe(IN PDEVICE_OBJECT FdoDevice, Packet->QueryEndpointRequirements(FdoExtension->MiniPortExt, &Endpoint->EndpointProperties, - TransferParams); + &EndpointRequirements); KeReleaseSpinLock(&FdoExtension->MiniportSpinLock, OldIrql); if ((EndpointProperties->TransferType == USBPORT_TRANSFER_TYPE_BULK) || (EndpointProperties->TransferType == USBPORT_TRANSFER_TYPE_INTERRUPT)) { - EndpointProperties->MaxTransferSize = TransferParams[1]; + EndpointProperties->MaxTransferSize = EndpointRequirements.MaxTransferSize; } - if (TransferParams[0]) + if (EndpointRequirements.HeaderBufferSize) { HeaderBuffer = USBPORT_AllocateCommonBuffer(FdoDevice, - TransferParams[0]); + EndpointRequirements.HeaderBufferSize); } else { HeaderBuffer = NULL; } - if (HeaderBuffer || (TransferParams[0] == 0)) + if (HeaderBuffer || (EndpointRequirements.HeaderBufferSize == 0)) { Endpoint->HeaderBuffer = HeaderBuffer; @@ -969,7 +969,7 @@ USBPORT_ReopenPipe(IN PDEVICE_OBJECT FdoDevice, { PUSBPORT_DEVICE_EXTENSION FdoExtension; PUSBPORT_COMMON_BUFFER_HEADER HeaderBuffer; - ULONG EndpointRequirements[2] = {0}; + USBPORT_ENDPOINT_REQUIREMENTS EndpointRequirements = {0}; PUSBPORT_REGISTRATION_PACKET Packet; KIRQL MiniportOldIrql; NTSTATUS Status; @@ -1013,21 +1013,21 @@ USBPORT_ReopenPipe(IN PDEVICE_OBJECT FdoDevice, Packet->QueryEndpointRequirements(FdoExtension->MiniPortExt, &Endpoint->EndpointProperties, - EndpointRequirements); + &EndpointRequirements); KeReleaseSpinLock(&FdoExtension->MiniportSpinLock, MiniportOldIrql); - if (EndpointRequirements[0]) + if (EndpointRequirements.HeaderBufferSize) { HeaderBuffer = USBPORT_AllocateCommonBuffer(FdoDevice, - EndpointRequirements[0]); + EndpointRequirements.HeaderBufferSize); } else { HeaderBuffer = NULL; } - if (HeaderBuffer || EndpointRequirements[0] == 0) + if (HeaderBuffer || EndpointRequirements.HeaderBufferSize == 0) { Endpoint->HeaderBuffer = HeaderBuffer; Status = STATUS_SUCCESS; diff --git a/drivers/usb/usbport/roothub.c b/drivers/usb/usbport/roothub.c index c5a77aef51..f843afd83a 100644 --- a/drivers/usb/usbport/roothub.c +++ b/drivers/usb/usbport/roothub.c @@ -170,7 +170,7 @@ USBPORT_RootHubClassCommand(IN PDEVICE_OBJECT FdoDevice, case USB_REQUEST_CLEAR_FEATURE: Feature = SetupPacket->wValue.W; - if ((SetupPacket->bmRequestType.Recipient) != USBPORT_RECIPIENT_ROOT_PORT) + if ((SetupPacket->bmRequestType.Recipient) != USBPORT_RECIPIENT_PORT) { if (Feature == FEATURE_C_HUB_LOCAL_POWER) { @@ -242,7 +242,7 @@ USBPORT_RootHubClassCommand(IN PDEVICE_OBJECT FdoDevice, break; case USB_REQUEST_SET_FEATURE: - if (SetupPacket->bmRequestType.Recipient != USBPORT_RECIPIENT_ROOT_PORT) + if (SetupPacket->bmRequestType.Recipient != USBPORT_RECIPIENT_PORT) { return RHStatus; } diff --git a/drivers/usb/usbport/usbport.h b/drivers/usb/usbport/usbport.h index aca072b88d..26e021cb14 100644 --- a/drivers/usb/usbport/usbport.h +++ b/drivers/usb/usbport/usbport.h @@ -30,8 +30,8 @@ #define USBD_TRANSFER_DIRECTION 0x00000001 #endif -#define USBPORT_RECIPIENT_ROOT_HUB BMREQUEST_TO_DEVICE -#define USBPORT_RECIPIENT_ROOT_PORT BMREQUEST_TO_OTHER +#define USBPORT_RECIPIENT_HUB BMREQUEST_TO_DEVICE +#define USBPORT_RECIPIENT_PORT BMREQUEST_TO_OTHER #define INVALIDATE_ENDPOINT_ONLY 0 #define INVALIDATE_ENDPOINT_WORKER_THREAD 1 diff --git a/sdk/include/reactos/drivers/usbport/usbmport.h b/sdk/include/reactos/drivers/usbport/usbmport.h index 2b14bac56a..23a7e91e9a 100644 --- a/sdk/include/reactos/drivers/usbport/usbmport.h +++ b/sdk/include/reactos/drivers/usbport/usbmport.h @@ -64,6 +64,70 @@ typedef struct _USBPORT_RESOURCES { C_ASSERT(sizeof(USBPORT_RESOURCES) == 24 + 7 * sizeof(PVOID)); +typedef struct _USBPORT_ENDPOINT_PROPERTIES { + USHORT DeviceAddress; + USHORT EndpointAddress; + USHORT TotalMaxPacketSize; // TransactionPerMicroframe * MaxPacketSize + UCHAR Period; + UCHAR Reserved1; + USB_DEVICE_SPEED DeviceSpeed; + ULONG UsbBandwidth; + ULONG ScheduleOffset; + ULONG TransferType; + ULONG Direction; + ULONG_PTR BufferVA; + ULONG_PTR BufferPA; + ULONG BufferLength; + ULONG Reserved3; + ULONG MaxTransferSize; + USHORT HubAddr; + USHORT PortNumber; + UCHAR InterruptScheduleMask; + UCHAR SplitCompletionMask; + UCHAR TransactionPerMicroframe; // 1 + additional transactions. Total: from 1 to 3) + UCHAR Reserved4; + ULONG MaxPacketSize; + ULONG Reserved6; +} USBPORT_ENDPOINT_PROPERTIES, *PUSBPORT_ENDPOINT_PROPERTIES; + +C_ASSERT(sizeof(USBPORT_ENDPOINT_PROPERTIES) == 48 + 4 * sizeof(PVOID)); + +typedef struct _USBPORT_TRANSFER_PARAMETERS { + ULONG TransferFlags; + ULONG TransferBufferLength; + ULONG TransferCounter; + BOOL IsTransferSplited; + ULONG Reserved2; + USB_DEFAULT_PIPE_SETUP_PACKET SetupPacket; +} USBPORT_TRANSFER_PARAMETERS, *PUSBPORT_TRANSFER_PARAMETERS; + +C_ASSERT(sizeof(USBPORT_TRANSFER_PARAMETERS) == 28); + +typedef struct _USBPORT_SCATTER_GATHER_ELEMENT { + PHYSICAL_ADDRESS SgPhysicalAddress; + ULONG Reserved1; + ULONG SgTransferLength; + ULONG SgOffset; + ULONG Reserved2; +} USBPORT_SCATTER_GATHER_ELEMENT, *PUSBPORT_SCATTER_GATHER_ELEMENT; + +C_ASSERT(sizeof(USBPORT_SCATTER_GATHER_ELEMENT) == 24); + +typedef struct _USBPORT_SCATTER_GATHER_LIST { + ULONG Flags; + ULONG_PTR CurrentVa; + PVOID MappedSystemVa; + ULONG SgElementCount; + USBPORT_SCATTER_GATHER_ELEMENT SgElement[2]; +} USBPORT_SCATTER_GATHER_LIST, *PUSBPORT_SCATTER_GATHER_LIST; + +C_ASSERT(sizeof(USBPORT_SCATTER_GATHER_LIST) == 48 + 4 * sizeof(PVOID)); + +typedef struct _USBPORT_ENDPOINT_REQUIREMENTS { + ULONG HeaderBufferSize; + ULONG MaxTransferSize; +} USBPORT_ENDPOINT_REQUIREMENTS, *PUSBPORT_ENDPOINT_REQUIREMENTS; + typedef ULONG MPSTATUS; // Miniport status typedef ULONG RHSTATUS; // Roothub status @@ -88,20 +152,20 @@ typedef ULONG RHSTATUS; // Roothub status typedef MPSTATUS (NTAPI *PHCI_OPEN_ENDPOINT)( PVOID, - PVOID, + PUSBPORT_ENDPOINT_PROPERTIES, PVOID); typedef MPSTATUS (NTAPI *PHCI_REOPEN_ENDPOINT)( PVOID, - PVOID, + PUSBPORT_ENDPOINT_PROPERTIES, PVOID); typedef VOID (NTAPI *PHCI_QUERY_ENDPOINT_REQUIREMENTS)( PVOID, - PVOID, - PULONG); + PUSBPORT_ENDPOINT_PROPERTIES, + PUSBPORT_ENDPOINT_REQUIREMENTS); typedef VOID (NTAPI *PHCI_CLOSE_ENDPOINT)( @@ -137,15 +201,15 @@ typedef MPSTATUS (NTAPI *PHCI_SUBMIT_TRANSFER)( PVOID, PVOID, + PUSBPORT_TRANSFER_PARAMETERS, PVOID, - PVOID, - PVOID); + PUSBPORT_SCATTER_GATHER_LIST); typedef MPSTATUS (NTAPI *PHCI_SUBMIT_ISO_TRANSFER)( PVOID, PVOID, - PVOID, + PUSBPORT_TRANSFER_PARAMETERS, PVOID, PVOID); @@ -443,7 +507,7 @@ typedef ULONG typedef VOID (NTAPI *PHCI_REBALANCE_ENDPOINT)( PVOID, - PVOID, + PUSBPORT_ENDPOINT_PROPERTIES, PVOID); typedef VOID @@ -583,65 +647,6 @@ C_ASSERT(sizeof(USBPORT_MINIPORT_INTERFACE) == 32 + 76 * sizeof(PVOID)); #define USBPORT_TRANSFER_DIRECTION_OUT 1 // From host to device #define USBPORT_MAX_DEVICE_ADDRESS 127 -typedef struct _USBPORT_ENDPOINT_PROPERTIES { - USHORT DeviceAddress; - USHORT EndpointAddress; - USHORT TotalMaxPacketSize; // TransactionPerMicroframe * MaxPacketSize - UCHAR Period; - UCHAR Reserved1; - USB_DEVICE_SPEED DeviceSpeed; - ULONG UsbBandwidth; - ULONG ScheduleOffset; - ULONG TransferType; - ULONG Direction; - ULONG_PTR BufferVA; - ULONG_PTR BufferPA; - ULONG BufferLength; - ULONG Reserved3; - ULONG MaxTransferSize; - USHORT HubAddr; - USHORT PortNumber; - UCHAR InterruptScheduleMask; - UCHAR SplitCompletionMask; - UCHAR TransactionPerMicroframe; // 1 + additional transactions. Total: from 1 to 3) - UCHAR Reserved4; - ULONG MaxPacketSize; - ULONG Reserved6; -} USBPORT_ENDPOINT_PROPERTIES, *PUSBPORT_ENDPOINT_PROPERTIES; - -C_ASSERT(sizeof(USBPORT_ENDPOINT_PROPERTIES) == 48 + 4 * sizeof(PVOID)); - -typedef struct _USBPORT_SCATTER_GATHER_ELEMENT { - PHYSICAL_ADDRESS SgPhysicalAddress; - ULONG Reserved1; - ULONG SgTransferLength; - ULONG SgOffset; - ULONG Reserved2; -} USBPORT_SCATTER_GATHER_ELEMENT, *PUSBPORT_SCATTER_GATHER_ELEMENT; - -C_ASSERT(sizeof(USBPORT_SCATTER_GATHER_ELEMENT) == 24); - -typedef struct _USBPORT_SCATTER_GATHER_LIST { - ULONG Flags; - ULONG_PTR CurrentVa; - PVOID MappedSystemVa; - ULONG SgElementCount; - USBPORT_SCATTER_GATHER_ELEMENT SgElement[2]; -} USBPORT_SCATTER_GATHER_LIST, *PUSBPORT_SCATTER_GATHER_LIST; - -C_ASSERT(sizeof(USBPORT_SCATTER_GATHER_LIST) == 48 + 4 * sizeof(PVOID)); - -typedef struct _USBPORT_TRANSFER_PARAMETERS { - ULONG TransferFlags; - ULONG TransferBufferLength; - ULONG TransferCounter; - BOOL IsTransferSplited; - ULONG Reserved2; - USB_DEFAULT_PIPE_SETUP_PACKET SetupPacket; -} USBPORT_TRANSFER_PARAMETERS, *PUSBPORT_TRANSFER_PARAMETERS; - -C_ASSERT(sizeof(USBPORT_TRANSFER_PARAMETERS) == 28); - /* For USB1.1 or USB3 Hub Descriptors */ typedef union _USBPORT_HUB_11_CHARACTERISTICS { struct {

6 years, 9 months

[reactos] 01/01: [FASTFAT_NEW] This is not permitted by WDK license. We should rather import from MS GitHub and backport to NT5.2.

by Pierre Schweitzer

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=a913501626e599fba9d70… commit a913501626e599fba9d702149896f36046832deb Author: Pierre Schweitzer <pierre(a)reactos.org> AuthorDate: Thu Nov 23 15:04:05 2017 +0100 [FASTFAT_NEW] This is not permitted by WDK license. We should rather import from MS GitHub and backport to NT5.2. --- drivers/filesystems/fastfat_new/CMakeLists.txt | 44 - drivers/filesystems/fastfat_new/acchksup.c | 374 -- drivers/filesystems/fastfat_new/allocsup.c | 5001 ------------------ drivers/filesystems/fastfat_new/cachesup.c | 1814 ------- drivers/filesystems/fastfat_new/cleanup.c | 1027 ---- drivers/filesystems/fastfat_new/close.c | 1224 ----- drivers/filesystems/fastfat_new/create.c | 5684 -------------------- drivers/filesystems/fastfat_new/devctrl.c | 308 -- drivers/filesystems/fastfat_new/deviosup.c | 3284 ------------ drivers/filesystems/fastfat_new/dirctrl.c | 1526 ------ drivers/filesystems/fastfat_new/dirsup.c | 3647 ------------- drivers/filesystems/fastfat_new/dumpsup.c | 381 -- drivers/filesystems/fastfat_new/ea.c | 2013 ------- drivers/filesystems/fastfat_new/easup.c | 3811 -------------- drivers/filesystems/fastfat_new/fastfat.rc | 5 - drivers/filesystems/fastfat_new/fat.h | 729 --- drivers/filesystems/fastfat_new/fatdata.c | 1424 ----- drivers/filesystems/fastfat_new/fatdata.h | 328 -- drivers/filesystems/fastfat_new/fatinit.c | 675 --- drivers/filesystems/fastfat_new/fatprocs.h | 2817 ---------- drivers/filesystems/fastfat_new/fatprocssrc.c | 1 - drivers/filesystems/fastfat_new/fatstruc.h | 1614 ------ drivers/filesystems/fastfat_new/fileinfo.c | 4635 ---------------- drivers/filesystems/fastfat_new/filobsup.c | 547 -- drivers/filesystems/fastfat_new/flush.c | 1261 ----- drivers/filesystems/fastfat_new/fsctrl.c | 6726 ------------------------ drivers/filesystems/fastfat_new/fspdisp.c | 472 -- drivers/filesystems/fastfat_new/lfn.h | 56 - drivers/filesystems/fastfat_new/lockctrl.c | 726 --- drivers/filesystems/fastfat_new/namesup.c | 1021 ---- drivers/filesystems/fastfat_new/nodetype.h | 193 - drivers/filesystems/fastfat_new/pnp.c | 815 --- drivers/filesystems/fastfat_new/read.c | 1649 ------ drivers/filesystems/fastfat_new/resrcsup.c | 807 --- drivers/filesystems/fastfat_new/shutdown.c | 304 -- drivers/filesystems/fastfat_new/sources | 45 - drivers/filesystems/fastfat_new/splaysup.c | 504 -- drivers/filesystems/fastfat_new/strucsup.c | 3626 ------------- drivers/filesystems/fastfat_new/timesup.c | 364 -- drivers/filesystems/fastfat_new/verfysup.c | 1853 ------- drivers/filesystems/fastfat_new/volinfo.c | 1272 ----- drivers/filesystems/fastfat_new/workque.c | 362 -- drivers/filesystems/fastfat_new/write.c | 2830 ---------- 43 files changed, 67799 deletions(-) diff --git a/drivers/filesystems/fastfat_new/CMakeLists.txt b/drivers/filesystems/fastfat_new/CMakeLists.txt deleted file mode 100644 index f21d829e63..0000000000 --- a/drivers/filesystems/fastfat_new/CMakeLists.txt +++ /dev/null @@ -1,44 +0,0 @@ - -list(APPEND SOURCE - acchksup.c - allocsup.c - cachesup.c - cleanup.c - close.c - create.c - devctrl.c - deviosup.c - dirctrl.c - dirsup.c - dumpsup.c - ea.c - easup.c - fatdata.c - fatinit.c - fatprocssrc.c - fileinfo.c - filobsup.c - flush.c - fsctrl.c - fspdisp.c - lockctrl.c - namesup.c - pnp.c - read.c - resrcsup.c - shutdown.c - splaysup.c - strucsup.c - timesup.c - verfysup.c - volinfo.c - workque.c - write.c - fatprocs.h) - -add_library(fastfat SHARED ${SOURCE} fastfat.rc) -set_module_type(fastfat kernelmodedriver) -target_link_libraries(fastfat ${PSEH_LIB} memcmp) -add_importlibs(fastfat ntoskrnl hal) -add_pch(fastfat fatprocs.h SOURCE) -add_cd_file(TARGET fastfat DESTINATION reactos/system32/drivers NO_CAB FOR all) diff --git a/drivers/filesystems/fastfat_new/acchksup.c b/drivers/filesystems/fastfat_new/acchksup.c deleted file mode 100644 index b0c78a81a4..0000000000 --- a/drivers/filesystems/fastfat_new/acchksup.c +++ /dev/null @@ -1,374 +0,0 @@ -/*++ - -Copyright (c) 1989-2000 Microsoft Corporation - -Module Name: - - AcChkSup.c - -Abstract: - - This module implements the FAT access checking routine - - ---*/ - -#include "fatprocs.h" - -// -// Our debug trace level -// - -#define Dbg (DEBUG_TRACE_ACCHKSUP) - -NTSTATUS -FatCreateRestrictEveryoneToken( - IN PACCESS_TOKEN Token, - OUT PACCESS_TOKEN *RestrictedToken - ); - -#ifdef ALLOC_PRAGMA -#pragma alloc_text(PAGE, FatCheckFileAccess) -#pragma alloc_text(PAGE, FatCreateRestrictEveryoneToken) -#pragma alloc_text(PAGE, FatExplicitDeviceAccessGranted) -#endif - - -BOOLEAN -FatCheckFileAccess ( - PIRP_CONTEXT IrpContext, - IN UCHAR DirentAttributes, - IN PACCESS_MASK DesiredAccess - ) - -/*++ - -Routine Description: - - This routine checks if a desired access is allowed to a file represented - by the specified DirentAttriubutes. - -Arguments: - - DirentAttributes - Supplies the Dirent attributes to check access for - - DesiredAccess - Supplies the desired access mask that we are checking for - -Return Value: - - BOOLEAN - TRUE if access is allowed and FALSE otherwise - ---*/ - -{ - BOOLEAN Result; - - DebugTrace(+1, Dbg, "FatCheckFileAccess\n", 0); - DebugTrace( 0, Dbg, "DirentAttributes = %8lx\n", DirentAttributes); - DebugTrace( 0, Dbg, "DesiredAccess = %8lx\n", *DesiredAccess); - - // - // This procedures is programmed like a string of filters each - // filter checks to see if some access is allowed, if it is not allowed - // the filter return FALSE to the user without further checks otherwise - // it moves on to the next filter. The filter check is to check for - // desired access flags that are not allowed for a particular dirent - // - - Result = TRUE; - - _SEH2_TRY { - - // - // Check for Volume ID or Device Dirents, these are not allowed user - // access at all - // - - if (FlagOn(DirentAttributes, FAT_DIRENT_ATTR_VOLUME_ID) || - FlagOn(DirentAttributes, FAT_DIRENT_ATTR_DEVICE)) { - - DebugTrace(0, Dbg, "Cannot access volume id or device\n", 0); - - try_return( Result = FALSE ); - } - - // - // Check the desired access for the object - we only blackball that - // we do not understand. The model of filesystems using ACLs is that - // they do not type the ACL to the object the ACL is on. Permissions - // are not checked for consistency vs. the object type - dir/file. - // - - if (FlagOn(*DesiredAccess, ~(DELETE | - READ_CONTROL | - WRITE_OWNER | - WRITE_DAC | - SYNCHRONIZE | - ACCESS_SYSTEM_SECURITY | - FILE_WRITE_DATA | - FILE_READ_EA | - FILE_WRITE_EA | - FILE_READ_ATTRIBUTES | - FILE_WRITE_ATTRIBUTES | - FILE_LIST_DIRECTORY | - FILE_TRAVERSE | - FILE_DELETE_CHILD | - FILE_APPEND_DATA))) { - - DebugTrace(0, Dbg, "Cannot open object\n", 0); - - try_return( Result = FALSE ); - } - - // - // Check for a read-only Dirent - // - - if (FlagOn(DirentAttributes, FAT_DIRENT_ATTR_READ_ONLY)) { - - // - // Check the desired access for a read-only dirent, we blackball - // WRITE, FILE_APPEND_DATA, FILE_ADD_FILE, - // FILE_ADD_SUBDIRECTORY, and FILE_DELETE_CHILD - // - - if (FlagOn(*DesiredAccess, ~(DELETE | - READ_CONTROL | - WRITE_OWNER | - WRITE_DAC | - SYNCHRONIZE | - ACCESS_SYSTEM_SECURITY | - FILE_READ_DATA | - FILE_READ_EA | - FILE_WRITE_EA | - FILE_READ_ATTRIBUTES | - FILE_WRITE_ATTRIBUTES | - FILE_EXECUTE | - FILE_LIST_DIRECTORY | - FILE_TRAVERSE))) { - - DebugTrace(0, Dbg, "Cannot open readonly\n", 0); - - try_return( Result = FALSE ); - } - } - - try_exit: NOTHING; - } _SEH2_FINALLY { - - DebugUnwind( FatCheckFileAccess ); - - DebugTrace(-1, Dbg, "FatCheckFileAccess -> %08lx\n", Result); - } _SEH2_END; - - UNREFERENCED_PARAMETER( IrpContext ); - - return Result; -} - - -NTSTATUS -FatExplicitDeviceAccessGranted ( - IN PIRP_CONTEXT IrpContext, - IN PDEVICE_OBJECT DeviceObject, - IN PACCESS_STATE AccessState, - IN KPROCESSOR_MODE ProcessorMode - ) - -/*++ - -Routine Description: - - This function asks whether the SID described in the input access state has - been granted any explicit access to the given device object. It does this - by acquiring a token stripped of its ability to acquire access via the - Everyone SID and re-doing the access check. - -Arguments: - - DeviceObject - the device whose ACL will be checked - - AccessState - the access state describing the security context to be checked - - ProcessorMode - the mode this check should occur against - -Return Value: - - NTSTATUS - Indicating whether explicit access was granted. - ---*/ - -{ - NTSTATUS Status; -#ifndef __REACTOS__ - BOOLEAN Result; -#endif - - PACCESS_TOKEN OriginalAccessToken; - PACCESS_TOKEN RestrictedAccessToken; - - PACCESS_TOKEN *EffectiveToken; - - PRIVILEGE_SET PrivilegeSet; - - ACCESS_MASK GrantedAccess; - - // - // If the access state indicates that specific access other - // than traverse was acquired, either Everyone does have such - // access or explicit access was granted. In both cases, we're - // happy to let this proceed. - // - - if (AccessState->PreviouslyGrantedAccess & (SPECIFIC_RIGHTS_ALL ^ - FILE_TRAVERSE)) { - - return STATUS_SUCCESS; - } - - // - // If the manage volume privilege is held, this also permits access. - // - - PrivilegeSet.PrivilegeCount = 1; - PrivilegeSet.Control = PRIVILEGE_SET_ALL_NECESSARY; - PrivilegeSet.Privilege[0].Luid = RtlConvertLongToLuid( SE_MANAGE_VOLUME_PRIVILEGE ); - PrivilegeSet.Privilege[0].Attributes = 0; - - if (SePrivilegeCheck( &PrivilegeSet, - &AccessState->SubjectSecurityContext, - ProcessorMode )) { - - return STATUS_SUCCESS; - } - - // - // Capture the subject context as a prelude to everything below. - // - - SeLockSubjectContext( &AccessState->SubjectSecurityContext ); - - // - // Convert the token in the subject context into one which does not - // acquire access through the Everyone SID. - // - // The logic for deciding which token is effective comes from - // SeQuerySubjectContextToken; since there is no natural way - // of getting a pointer to it, do it by hand. - // - - if (ARGUMENT_PRESENT( AccessState->SubjectSecurityContext.ClientToken )) { - EffectiveToken = &AccessState->SubjectSecurityContext.ClientToken; - } else { - EffectiveToken = &AccessState->SubjectSecurityContext.PrimaryToken; - } - - OriginalAccessToken = *EffectiveToken; - Status = FatCreateRestrictEveryoneToken( OriginalAccessToken, &RestrictedAccessToken ); - - if (!NT_SUCCESS(Status)) { - - SeReleaseSubjectContext( &AccessState->SubjectSecurityContext ); - return Status; - } - - // - // Now see if the resulting context has access to the device through - // its explicitly granted access. We swap in our restricted token - // for this check as the effective client token. - // - - *EffectiveToken = RestrictedAccessToken; - -#ifndef __REACTOS__ - Result = SeAccessCheck( DeviceObject->SecurityDescriptor, -#else - SeAccessCheck( DeviceObject->SecurityDescriptor, -#endif - &AccessState->SubjectSecurityContext, - FALSE, - AccessState->OriginalDesiredAccess, - 0, - NULL, - IoGetFileObjectGenericMapping(), - ProcessorMode, - &GrantedAccess, - &Status ); - - *EffectiveToken = OriginalAccessToken; - - // - // Cleanup and return. - // - - SeUnlockSubjectContext( &AccessState->SubjectSecurityContext ); - ObDereferenceObject( RestrictedAccessToken ); - - return Status; -} - - -NTSTATUS -FatCreateRestrictEveryoneToken ( - IN PACCESS_TOKEN Token, - OUT PACCESS_TOKEN *RestrictedToken - ) - -/*++ - -Routine Description: - - This function takes a token as the input and returns a new restricted token - from which Everyone sid has been disabled. The resulting token may be used - to find out if access is available to a user-sid by explicit means. - -Arguments: - - Token - Input token from which Everyone sid needs to be deactivated. - - RestrictedToken - Receives the the new restricted token. - This must be released using ObDereferenceObject(*RestrictedToken); - -Return Value: - - NTSTATUS - Returned by SeFilterToken. - ---*/ - -{ - // - // Array of sids to disable. - // - - TOKEN_GROUPS SidsToDisable; - - NTSTATUS Status = STATUS_SUCCESS; - - // - // Restricted token will contain the original sids with one change: - // If Everyone sid is present in the token, it will be marked for DenyOnly. - // - - *RestrictedToken = NULL; - - // - // Put Everyone sid in the array of sids to disable. This will mark it - // for SE_GROUP_USE_FOR_DENY_ONLY and it'll only be applicable for Deny aces. - // - - SidsToDisable.GroupCount = 1; - SidsToDisable.Groups[0].Attributes = 0; - SidsToDisable.Groups[0].Sid = SeExports->SeWorldSid; - - Status = SeFilterToken( - Token, // Token that needs to be restricted. - 0, // No flags - &SidsToDisable, // Disable everyone sid - NULL, // Do not create any restricted sids - NULL, // Do not delete any privileges - RestrictedToken // Restricted token - ); - - return Status; -} - diff --git a/drivers/filesystems/fastfat_new/allocsup.c b/drivers/filesystems/fastfat_new/allocsup.c deleted file mode 100644 index 79a9e7865a..0000000000 --- a/drivers/filesystems/fastfat_new/allocsup.c +++ /dev/null @@ -1,5001 +0,0 @@ -/*++ - -Copyright (c) 1990-2000 Microsoft Corporation - -Module Name: - - AllocSup.c - -Abstract: - - This module implements the Allocation support routines for Fat. - - ---*/ - -#include "fatprocs.h" - -// -// The Bug check file id for this module -// - -#define BugCheckFileId (FAT_BUG_CHECK_ALLOCSUP) - -// -// Local debug trace level -// - -#define Dbg (DEBUG_TRACE_ALLOCSUP) - -#define FatMin(a, b) ((a) < (b) ? (a) : (b)) - -// -// This strucure is used by FatLookupFatEntry to remember a pinned page -// of fat. -// - -typedef struct _FAT_ENUMERATION_CONTEXT { - - VBO VboOfPinnedPage; - PBCB Bcb; - PVOID PinnedPage; - -} FAT_ENUMERATION_CONTEXT, *PFAT_ENUMERATION_CONTEXT; - -// -// Local support routine prototypes -// - -VOID -FatLookupFatEntry( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG FatIndex, - IN OUT PULONG FatEntry, - IN OUT PFAT_ENUMERATION_CONTEXT Context - ); - -VOID -FatSetFatRun( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG StartingFatIndex, - IN ULONG ClusterCount, - IN BOOLEAN ChainTogether - ); - -UCHAR -FatLogOf( - IN ULONG Value - ); - -// -// Note that the KdPrint below will ONLY fire when the assert does. Leave it -// alone. -// - -#if DBG -#define ASSERT_CURRENT_WINDOW_GOOD(VCB) { \ - ULONG FreeClusterBitMapClear; \ - ASSERT( (VCB)->FreeClusterBitMap.Buffer != NULL ); \ - FreeClusterBitMapClear = RtlNumberOfClearBits(&(VCB)->FreeClusterBitMap); \ - if ((VCB)->CurrentWindow->ClustersFree != FreeClusterBitMapClear) { \ - KdPrint(("FAT: ClustersFree %x h != FreeClusterBitMapClear %x h\n", \ - (VCB)->CurrentWindow->ClustersFree, \ - FreeClusterBitMapClear)); \ - } \ - ASSERT( (VCB)->CurrentWindow->ClustersFree == FreeClusterBitMapClear ); \ -} -#else -#define ASSERT_CURRENT_WINDOW_GOOD(VCB) -#endif - -// -// The following macros provide a convenient way of hiding the details -// of bitmap allocation schemes. -// - - -// -// VOID -// FatLockFreeClusterBitMap ( -// IN PVCB Vcb -// ); -// - -#define FatLockFreeClusterBitMap(VCB) { \ - ASSERT(KeAreApcsDisabled()); \ - ExAcquireFastMutexUnsafe( &(VCB)->FreeClusterBitMapMutex ); \ - ASSERT_CURRENT_WINDOW_GOOD(VCB) \ -} - -// -// VOID -// FatUnlockFreeClusterBitMap ( -// IN PVCB Vcb -// ); -// - -#define FatUnlockFreeClusterBitMap(VCB) { \ - ASSERT_CURRENT_WINDOW_GOOD(VCB) \ - ASSERT(KeAreApcsDisabled()); \ - ExReleaseFastMutexUnsafe( &(VCB)->FreeClusterBitMapMutex ); \ -} - -// -// BOOLEAN -// FatIsClusterFree ( -// IN PIRP_CONTEXT IrpContext, -// IN PVCB Vcb, -// IN ULONG FatIndex -// ); -// - -#define FatIsClusterFree(IRPCONTEXT,VCB,FAT_INDEX) \ - (RtlCheckBit(&(VCB)->FreeClusterBitMap,(FAT_INDEX)-2) == 0) - -// -// VOID -// FatFreeClusters ( -// IN PIRP_CONTEXT IrpContext, -// IN PVCB Vcb, -// IN ULONG FatIndex, -// IN ULONG ClusterCount -// ); -// - -#define FatFreeClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ - if ((CLUSTER_COUNT) == 1) { \ - FatSetFatEntry((IRPCONTEXT),(VCB),(FAT_INDEX),FAT_CLUSTER_AVAILABLE); \ - } else { \ - FatSetFatRun((IRPCONTEXT),(VCB),(FAT_INDEX),(CLUSTER_COUNT),FALSE); \ - } \ -} - -// -// VOID -// FatAllocateClusters ( -// IN PIRP_CONTEXT IrpContext, -// IN PVCB Vcb, -// IN ULONG FatIndex, -// IN ULONG ClusterCount -// ); -// - -#define FatAllocateClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ - if ((CLUSTER_COUNT) == 1) { \ - FatSetFatEntry((IRPCONTEXT),(VCB),(FAT_INDEX),FAT_CLUSTER_LAST); \ - } else { \ - FatSetFatRun((IRPCONTEXT),(VCB),(FAT_INDEX),(CLUSTER_COUNT),TRUE); \ - } \ -} - -// -// VOID -// FatUnreserveClusters ( -// IN PIRP_CONTEXT IrpContext, -// IN PVCB Vcb, -// IN ULONG FatIndex, -// IN ULONG ClusterCount -// ); -// - -#define FatUnreserveClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ - ASSERT( (FAT_INDEX) + (CLUSTER_COUNT) - 2 <= (VCB)->FreeClusterBitMap.SizeOfBitMap ); \ - ASSERT( (FAT_INDEX) >= 2); \ - RtlClearBits(&(VCB)->FreeClusterBitMap,(FAT_INDEX)-2,(CLUSTER_COUNT)); \ - if ((FAT_INDEX) < (VCB)->ClusterHint) { \ - (VCB)->ClusterHint = (FAT_INDEX); \ - } \ -} - -// -// VOID -// FatReserveClusters ( -// IN PIRP_CONTEXT IrpContext, -// IN PVCB Vcb, -// IN ULONG FatIndex, -// IN ULONG ClusterCount -// ); -// -// Handle wrapping the hint back to the front. -// - -#define FatReserveClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ - ULONG _AfterRun = (FAT_INDEX) + (CLUSTER_COUNT); \ - ASSERT( (FAT_INDEX) + (CLUSTER_COUNT) - 2 <= (VCB)->FreeClusterBitMap.SizeOfBitMap ); \ - ASSERT( (FAT_INDEX) >= 2); \ - RtlSetBits(&(VCB)->FreeClusterBitMap,(FAT_INDEX)-2,(CLUSTER_COUNT)); \ - \ - if (_AfterRun - 2 >= (VCB)->FreeClusterBitMap.SizeOfBitMap) { \ - _AfterRun = 2; \ - } \ - if (RtlCheckBit(&(VCB)->FreeClusterBitMap, _AfterRun - 2)) { \ - (VCB)->ClusterHint = RtlFindClearBits( &(VCB)->FreeClusterBitMap, 1, _AfterRun - 2) + 2; \ - if (1 == (VCB)->ClusterHint) { \ - (VCB)->ClusterHint = 2; \ - } \ - } \ - else { \ - (VCB)->ClusterHint = _AfterRun; \ - } \ -} - -// -// ULONG -// FatFindFreeClusterRun ( -// IN PIRP_CONTEXT IrpContext, -// IN PVCB Vcb, -// IN ULONG ClusterCount, -// IN ULONG AlternateClusterHint -// ); -// -// Do a special check if only one cluster is desired. -// - -#define FatFindFreeClusterRun(IRPCONTEXT,VCB,CLUSTER_COUNT,CLUSTER_HINT) ( \ - (CLUSTER_COUNT == 1) && \ - FatIsClusterFree((IRPCONTEXT), (VCB), (CLUSTER_HINT)) ? \ - (CLUSTER_HINT) : \ - RtlFindClearBits( &(VCB)->FreeClusterBitMap, \ - (CLUSTER_COUNT), \ - (CLUSTER_HINT) - 2) + 2 \ -) - -// -// FAT32: Define the maximum size of the FreeClusterBitMap to be the -// maximum size of a FAT16 FAT. If there are more clusters on the -// volume than can be represented by this many bytes of bitmap, the -// FAT will be split into "buckets", each of which does fit. -// -// Note this count is in clusters/bits of bitmap. -// - -#define MAX_CLUSTER_BITMAP_SIZE (1 << 16) - -// -// Calculate the window a given cluster number is in. -// - -#define FatWindowOfCluster(C) (((C) - 2) / MAX_CLUSTER_BITMAP_SIZE) - -#ifdef ALLOC_PRAGMA -#pragma alloc_text(PAGE, FatAddFileAllocation) -#pragma alloc_text(PAGE, FatAllocateDiskSpace) -#pragma alloc_text(PAGE, FatDeallocateDiskSpace) -#pragma alloc_text(PAGE, FatExamineFatEntries) -#pragma alloc_text(PAGE, FatInterpretClusterType) -#pragma alloc_text(PAGE, FatLogOf) -#pragma alloc_text(PAGE, FatLookupFatEntry) -#pragma alloc_text(PAGE, FatLookupFileAllocation) -#pragma alloc_text(PAGE, FatLookupFileAllocationSize) -#pragma alloc_text(PAGE, FatMergeAllocation) -#pragma alloc_text(PAGE, FatSetFatEntry) -#pragma alloc_text(PAGE, FatSetFatRun) -#pragma alloc_text(PAGE, FatSetupAllocationSupport) -#pragma alloc_text(PAGE, FatSplitAllocation) -#pragma alloc_text(PAGE, FatTearDownAllocationSupport) -#pragma alloc_text(PAGE, FatTruncateFileAllocation) -#endif - - -INLINE -ULONG -FatSelectBestWindow( - IN PVCB Vcb - ) -/*++ - -Routine Description: - - Choose a window to allocate clusters from. Order of preference is: - - 1. First window with >50% free clusters - 2. First empty window - 3. Window with greatest number of free clusters. - -Arguments: - - Vcb - Supplies the Vcb for the volume - -Return Value: - - 'Best window' number (index into Vcb->Windows[]) - ---*/ -{ - ULONG i, Fave = 0; - ULONG MaxFree = 0; - ULONG FirstEmpty = -1; - ULONG ClustersPerWindow = MAX_CLUSTER_BITMAP_SIZE; - - ASSERT( 1 != Vcb->NumberOfWindows); - - for (i = 0; i < Vcb->NumberOfWindows; i++) { - - if (Vcb->Windows[i].ClustersFree == ClustersPerWindow) { - - if (-1 == FirstEmpty) { - - // - // Keep note of the first empty window on the disc - // - - FirstEmpty = i; - } - } - else if (Vcb->Windows[i].ClustersFree > MaxFree) { - - // - // This window has the most free clusters, so far - // - - MaxFree = Vcb->Windows[i].ClustersFree; - Fave = i; - - // - // If this window has >50% free clusters, then we will take it, - // so don't bother considering more windows. - // - - if (MaxFree >= (ClustersPerWindow >> 1)) { - - break; - } - } - } - - // - // If there were no windows with 50% or more freespace, then select the - // first empty window on the disc, if any - otherwise we'll just go with - // the one with the most free clusters. - // - - if ((MaxFree < (ClustersPerWindow >> 1)) && (-1 != FirstEmpty)) { - - Fave = FirstEmpty; - } - - return Fave; -} - - -VOID -FatSetupAllocationSupport ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb - ) - -/*++ - -Routine Description: - - This routine fills in the Allocation Support structure in the Vcb. - Most entries are computed using fat.h macros supplied with data from - the Bios Parameter Block. The free cluster count, however, requires - going to the Fat and actually counting free sectors. At the same time - the free cluster bit map is initalized. - -Arguments: - - Vcb - Supplies the Vcb to fill in. - ---*/ - -{ -#ifndef __REACTOS__ - ULONG BitMapSize; - PVOID BitMapBuffer; -#endif - ULONG BitIndex; - -#ifndef __REACTOS__ - PBCB Bcb; - - ULONG Page; - ULONG Offset; - ULONG FatIndexBitSize; -#endif - ULONG ClustersDescribableByFat; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatSetupAllocationSupport\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - - // - // Compute a number of fields for Vcb.AllocationSupport - // - - Vcb->AllocationSupport.RootDirectoryLbo = FatRootDirectoryLbo( &Vcb->Bpb ); - Vcb->AllocationSupport.RootDirectorySize = FatRootDirectorySize( &Vcb->Bpb ); - - Vcb->AllocationSupport.FileAreaLbo = FatFileAreaLbo( &Vcb->Bpb ); - - Vcb->AllocationSupport.NumberOfClusters = FatNumberOfClusters( &Vcb->Bpb ); - - Vcb->AllocationSupport.FatIndexBitSize = FatIndexBitSize( &Vcb->Bpb ); - - Vcb->AllocationSupport.LogOfBytesPerSector = FatLogOf(Vcb->Bpb.BytesPerSector); - Vcb->AllocationSupport.LogOfBytesPerCluster = FatLogOf(FatBytesPerCluster( &Vcb->Bpb )); - Vcb->AllocationSupport.NumberOfFreeClusters = 0; - - // - // Deal with a bug in DOS 5 format, if the Fat is not big enough to - // describe all the clusters on the disk, reduce this number. We expect - // that fat32 volumes will not have this problem. - // - // Turns out this was not a good assumption. We have to do this always now. - // - - ClustersDescribableByFat = ( ((FatIsFat32(Vcb)? Vcb->Bpb.LargeSectorsPerFat : - Vcb->Bpb.SectorsPerFat) * - Vcb->Bpb.BytesPerSector * 8) - / FatIndexBitSize(&Vcb->Bpb) ) - 2; - - if (Vcb->AllocationSupport.NumberOfClusters > ClustersDescribableByFat) { - - Vcb->AllocationSupport.NumberOfClusters = ClustersDescribableByFat; - } - - // - // Extend the virtual volume file to include the Fat - // - - { - CC_FILE_SIZES FileSizes; - - FileSizes.AllocationSize.QuadPart = - FileSizes.FileSize.QuadPart = (FatReservedBytes( &Vcb->Bpb ) + - FatBytesPerFat( &Vcb->Bpb )); - FileSizes.ValidDataLength = FatMaxLarge; - - if ( Vcb->VirtualVolumeFile->PrivateCacheMap == NULL ) { - - CcInitializeCacheMap( Vcb->VirtualVolumeFile, - &FileSizes, - TRUE, - &FatData.CacheManagerNoOpCallbacks, - Vcb ); - - } else { - - CcSetFileSizes( Vcb->VirtualVolumeFile, &FileSizes ); - } - } - - _SEH2_TRY { - - if (FatIsFat32(Vcb) && - Vcb->AllocationSupport.NumberOfClusters > MAX_CLUSTER_BITMAP_SIZE) { - - Vcb->NumberOfWindows = (Vcb->AllocationSupport.NumberOfClusters + - MAX_CLUSTER_BITMAP_SIZE - 1) / - MAX_CLUSTER_BITMAP_SIZE; - -#ifndef __REACTOS__ - BitMapSize = MAX_CLUSTER_BITMAP_SIZE; -#endif - - } else { - - Vcb->NumberOfWindows = 1; -#ifndef __REACTOS__ - BitMapSize = Vcb->AllocationSupport.NumberOfClusters; -#endif - } - - Vcb->Windows = FsRtlAllocatePoolWithTag( PagedPool, - Vcb->NumberOfWindows * sizeof(FAT_WINDOW), - TAG_FAT_WINDOW ); - - RtlInitializeBitMap( &Vcb->FreeClusterBitMap, - NULL, - 0 ); - - // - // Chose a FAT window to begin operation in. - // - - if (Vcb->NumberOfWindows > 1) { - - // - // Read the fat and count up free clusters. We bias by the two reserved - // entries in the FAT. - // - - FatExamineFatEntries( IrpContext, Vcb, - 2, - Vcb->AllocationSupport.NumberOfClusters + 2 - 1, - TRUE, - NULL, - NULL); - - - // - // Pick a window to begin allocating from - // - - Vcb->CurrentWindow = &Vcb->Windows[ FatSelectBestWindow( Vcb)]; - - } else { - - Vcb->CurrentWindow = &Vcb->Windows[0]; - - // - // Carefully bias ourselves by the two reserved entries in the FAT. - // - - Vcb->CurrentWindow->FirstCluster = 2; - Vcb->CurrentWindow->LastCluster = Vcb->AllocationSupport.NumberOfClusters + 2 - 1; - } - - // - // Now transition to the FAT window we have chosen. - // - - FatExamineFatEntries( IrpContext, Vcb, - 0, - 0, - FALSE, - Vcb->CurrentWindow, - NULL); - - // - // Now set the ClusterHint to the first free bit in our favorite - // window (except the ClusterHint is off by two). - // - - Vcb->ClusterHint = - (BitIndex = RtlFindClearBits( &Vcb->FreeClusterBitMap, 1, 0 )) != -1 ? - BitIndex + 2 : 2; - - } _SEH2_FINALLY { - - DebugUnwind( FatSetupAllocationSupport ); - - // - // If we hit an exception, back out. - // - - if (_SEH2_AbnormalTermination()) { - - FatTearDownAllocationSupport( IrpContext, Vcb ); - } - } _SEH2_END; - - return; -} - - -VOID -FatTearDownAllocationSupport ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb - ) - -/*++ - -Routine Description: - - This routine prepares the volume for closing. Specifically, we must - release the free fat bit map buffer, and uninitialize the dirty fat - Mcb. - -Arguments: - - Vcb - Supplies the Vcb to fill in. - -Return Value: - - VOID - ---*/ - -{ - DebugTrace(+1, Dbg, "FatTearDownAllocationSupport\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - - PAGED_CODE(); - - // - // If there are FAT buckets, free them. - // - - if ( Vcb->Windows != NULL ) { - - ExFreePool( Vcb->Windows ); - Vcb->Windows = NULL; - } - - // - // Free the memory associated with the free cluster bitmap. - // - - if ( Vcb->FreeClusterBitMap.Buffer != NULL ) { - - ExFreePool( Vcb->FreeClusterBitMap.Buffer ); - - // - // NULL this field as an flag. - // - - Vcb->FreeClusterBitMap.Buffer = NULL; - } - - // - // And remove all the runs in the dirty fat Mcb - // - - FatRemoveMcbEntry( Vcb, &Vcb->DirtyFatMcb, 0, 0xFFFFFFFF ); - - DebugTrace(-1, Dbg, "FatTearDownAllocationSupport -> (VOID)\n", 0); - - UNREFERENCED_PARAMETER( IrpContext ); - - return; -} - - -VOID -FatLookupFileAllocation ( - IN PIRP_CONTEXT IrpContext, - IN PFCB FcbOrDcb, - IN VBO Vbo, - OUT PLBO Lbo, - OUT PULONG ByteCount, - OUT PBOOLEAN Allocated, - OUT PBOOLEAN EndOnMax, - OUT PULONG Index - ) - -/*++ - -Routine Description: - - This routine looks up the existing mapping of VBO to LBO for a - file/directory. The information it queries is either stored in the - mcb field of the fcb/dcb or it is stored on in the fat table and - needs to be retrieved and decoded, and updated in the mcb. - -Arguments: - - FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being queried - - Vbo - Supplies the VBO whose LBO we want returned - - Lbo - Receives the LBO corresponding to the input Vbo if one exists - - ByteCount - Receives the number of bytes within the run the run - that correpond between the input vbo and output lbo. - - Allocated - Receives TRUE if the Vbo does have a corresponding Lbo - and FALSE otherwise. - - EndOnMax - Receives TRUE if the run ends in the maximal FAT cluster, - which results in a fractional bytecount. - - Index - Receives the Index of the run - ---*/ - -{ - VBO CurrentVbo; - LBO CurrentLbo; - LBO PriorLbo; - - VBO FirstVboOfCurrentRun; - LBO FirstLboOfCurrentRun; - - BOOLEAN LastCluster; - ULONG Runs; - - PVCB Vcb; - FAT_ENTRY FatEntry; - ULONG BytesPerCluster; - ULARGE_INTEGER BytesOnVolume; - - FAT_ENUMERATION_CONTEXT Context; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatLookupFileAllocation\n", 0); - DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); - DebugTrace( 0, Dbg, " Vbo = %8lx\n", Vbo); - DebugTrace( 0, Dbg, " Lbo = %8lx\n", Lbo); - DebugTrace( 0, Dbg, " ByteCount = %8lx\n", ByteCount); - DebugTrace( 0, Dbg, " Allocated = %8lx\n", Allocated); - - Context.Bcb = NULL; - - Vcb = FcbOrDcb->Vcb; - - *EndOnMax = FALSE; - - // - // Check the trivial case that the mapping is already in our - // Mcb. - // - - if ( FatLookupMcbEntry(Vcb, &FcbOrDcb->Mcb, Vbo, Lbo, ByteCount, Index) ) { - - *Allocated = TRUE; - - ASSERT( ByteCount != 0); - - // - // Detect the overflow case, trim and claim the condition. - // - - if (Vbo + *ByteCount == 0) { - - *EndOnMax = TRUE; - } - - DebugTrace( 0, Dbg, "Found run in Mcb.\n", 0); - DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); - return; - } - - // - // Initialize the Vcb, the cluster size, LastCluster, and - // FirstLboOfCurrentRun (to be used as an indication of the first - // iteration through the following while loop). - // - - BytesPerCluster = 1 << Vcb->AllocationSupport.LogOfBytesPerCluster; - - BytesOnVolume.QuadPart = UInt32x32To64( Vcb->AllocationSupport.NumberOfClusters, BytesPerCluster ); - - LastCluster = FALSE; - FirstLboOfCurrentRun = 0; - - // - // Discard the case that the request extends beyond the end of - // allocation. Note that if the allocation size if not known - // AllocationSize is set to 0xffffffff. - // - - if ( Vbo >= FcbOrDcb->Header.AllocationSize.LowPart ) { - - *Allocated = FALSE; - - DebugTrace( 0, Dbg, "Vbo beyond end of file.\n", 0); - DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); - return; - } - - // - // The Vbo is beyond the last Mcb entry. So we adjust Current Vbo/Lbo - // and FatEntry to describe the beginning of the last entry in the Mcb. - // This is used as initialization for the following loop. - // - // If the Mcb was empty, we start at the beginning of the file with - // CurrentVbo set to 0 to indicate a new run. - // - - if (FatLookupLastMcbEntry( Vcb, &FcbOrDcb->Mcb, &CurrentVbo, &CurrentLbo, &Runs )) { - - DebugTrace( 0, Dbg, "Current Mcb size = %8lx.\n", CurrentVbo + 1); - - CurrentVbo -= (BytesPerCluster - 1); - CurrentLbo -= (BytesPerCluster - 1); - - // - // Convert an index to a count. - // - - Runs += 1; - - } else { - - DebugTrace( 0, Dbg, "Mcb empty.\n", 0); - - // - // Check for an FcbOrDcb that has no allocation - // - - if (FcbOrDcb->FirstClusterOfFile == 0) { - - *Allocated = FALSE; - - DebugTrace( 0, Dbg, "File has no allocation.\n", 0); - DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); - return; - - } else { - - CurrentVbo = 0; - CurrentLbo = FatGetLboFromIndex( Vcb, FcbOrDcb->FirstClusterOfFile ); - FirstVboOfCurrentRun = CurrentVbo; - FirstLboOfCurrentRun = CurrentLbo; - - Runs = 0; - - DebugTrace( 0, Dbg, "First Lbo of file = %8lx\n", CurrentLbo); - } - } - - // - // Now we know that we are looking up a valid Vbo, but it is - // not in the Mcb, which is a monotonically increasing list of - // Vbo's. Thus we have to go to the Fat, and update - // the Mcb as we go. We use a try-finally to unpin the page - // of fat hanging around. Also we mark *Allocated = FALSE, so that - // the caller wont try to use the data if we hit an exception. - // - - *Allocated = FALSE; - - _SEH2_TRY { - - FatEntry = (FAT_ENTRY)FatGetIndexFromLbo( Vcb, CurrentLbo ); - - // - // ASSERT that CurrentVbo and CurrentLbo are now cluster alligned. - // The assumption here, is that only whole clusters of Vbos and Lbos - // are mapped in the Mcb. - // - - ASSERT( ((CurrentLbo - Vcb->AllocationSupport.FileAreaLbo) - % BytesPerCluster == 0) && - (CurrentVbo % BytesPerCluster == 0) ); - - // - // Starting from the first Vbo after the last Mcb entry, scan through - // the Fat looking for our Vbo. We continue through the Fat until we - // hit a noncontiguity beyond the desired Vbo, or the last cluster. - // - - while ( !LastCluster ) { - - // - // Get the next fat entry, and update our Current variables. - // - -#ifndef __REACTOS__ - FatLookupFatEntry( IrpContext, Vcb, FatEntry, &FatEntry, &Context ); -#else - FatLookupFatEntry( IrpContext, Vcb, FatEntry, (PULONG)&FatEntry, &Context ); -#endif - - PriorLbo = CurrentLbo; - CurrentLbo = FatGetLboFromIndex( Vcb, FatEntry ); - CurrentVbo += BytesPerCluster; - - switch ( FatInterpretClusterType( Vcb, FatEntry )) { - - // - // Check for a break in the Fat allocation chain. - // - - case FatClusterAvailable: - case FatClusterReserved: - case FatClusterBad: - - DebugTrace( 0, Dbg, "Break in allocation chain, entry = %d\n", FatEntry); - DebugTrace(-1, Dbg, "FatLookupFileAllocation -> Fat Corrupt. Raise Status.\n", 0); - - FatPopUpFileCorrupt( IrpContext, FcbOrDcb ); - FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); - break; - - // - // If this is the last cluster, we must update the Mcb and - // exit the loop. - // - - case FatClusterLast: - - // - // Assert we know where the current run started. If the - // Mcb was empty when we were called, thenFirstLboOfCurrentRun - // was set to the start of the file. If the Mcb contained an - // entry, then FirstLboOfCurrentRun was set on the first - // iteration through the loop. Thus if FirstLboOfCurrentRun - // is 0, then there was an Mcb entry and we are on our first - // iteration, meaing that the last cluster in the Mcb was - // really the last allocated cluster, but we checked Vbo - // against AllocationSize, and found it OK, thus AllocationSize - // must be too large. - // - // Note that, when we finally arrive here, CurrentVbo is actually - // the first Vbo beyond the file allocation and CurrentLbo is - // meaningless. - // - - DebugTrace( 0, Dbg, "Read last cluster of file.\n", 0); - - // - // Detect the case of the maximal file. Note that this really isn't - // a proper Vbo - those are zero-based, and this is a one-based number. - // The maximal file, of 2^32 - 1 bytes, has a maximum byte offset of - // 2^32 - 2. - // - // Just so we don't get confused here. - // - - if (CurrentVbo == 0) { - - *EndOnMax = TRUE; - CurrentVbo -= 1; - } - - LastCluster = TRUE; - - if (FirstLboOfCurrentRun != 0 ) { - - DebugTrace( 0, Dbg, "Adding a run to the Mcb.\n", 0); - DebugTrace( 0, Dbg, " Vbo = %08lx.\n", FirstVboOfCurrentRun); - DebugTrace( 0, Dbg, " Lbo = %08lx.\n", FirstLboOfCurrentRun); - DebugTrace( 0, Dbg, " Length = %08lx.\n", CurrentVbo - FirstVboOfCurrentRun); - - (VOID)FatAddMcbEntry( Vcb, - &FcbOrDcb->Mcb, - FirstVboOfCurrentRun, - FirstLboOfCurrentRun, - CurrentVbo - FirstVboOfCurrentRun ); - - Runs += 1; - } - - // - // Being at the end of allocation, make sure we have found - // the Vbo. If we haven't, seeing as we checked VBO - // against AllocationSize, the real disk allocation is less - // than that of AllocationSize. This comes about when the - // real allocation is not yet known, and AllocaitonSize - // contains MAXULONG. - // - // KLUDGE! - If we were called by FatLookupFileAllocationSize - // Vbo is set to MAXULONG - 1, and AllocationSize to the lookup - // hint. Thus we merrily go along looking for a match that isn't - // there, but in the meantime building an Mcb. If this is - // the case, fill in AllocationSize and return. - // - - if ( Vbo == MAXULONG - 1 ) { - - *Allocated = FALSE; - FcbOrDcb->Header.AllocationSize.QuadPart = CurrentVbo; - - DebugTrace( 0, Dbg, "New file allocation size = %08lx.\n", CurrentVbo); - try_return ( NOTHING ); - } - - // - // We will lie ever so slightly if we really terminated on the - // maximal byte of a file. It is really allocated. - // - - if (Vbo >= CurrentVbo && !*EndOnMax) { - - *Allocated = FALSE; - try_return ( NOTHING ); - } - - break; - - // - // This is a continuation in the chain. If the run has a - // discontiguity at this point, update the Mcb, and if we are beyond - // the desired Vbo, this is the end of the run, so set LastCluster - // and exit the loop. - // - - case FatClusterNext: - - // - // This is the loop check. The Vbo must not be bigger than the size of - // the volume, and the Vbo must not have a) wrapped and b) not been at the - // very last cluster in the chain, for the case of the maximal file. - // - - if ( CurrentVbo == 0 || - (BytesOnVolume.HighPart == 0 && CurrentVbo > BytesOnVolume.LowPart)) { - - FatPopUpFileCorrupt( IrpContext, FcbOrDcb ); - FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); - } - - if ( PriorLbo + BytesPerCluster != CurrentLbo ) { - - // - // Note that on the first time through the loop - // (FirstLboOfCurrentRun == 0), we don't add the - // run to the Mcb since it curresponds to the last - // run already stored in the Mcb. - // - - if ( FirstLboOfCurrentRun != 0 ) { - - DebugTrace( 0, Dbg, "Adding a run to the Mcb.\n", 0); - DebugTrace( 0, Dbg, " Vbo = %08lx.\n", FirstVboOfCurrentRun); - DebugTrace( 0, Dbg, " Lbo = %08lx.\n", FirstLboOfCurrentRun); - DebugTrace( 0, Dbg, " Length = %08lx.\n", CurrentVbo - FirstVboOfCurrentRun); - - FatAddMcbEntry( Vcb, - &FcbOrDcb->Mcb, - FirstVboOfCurrentRun, - FirstLboOfCurrentRun, - CurrentVbo - FirstVboOfCurrentRun ); - - Runs += 1; - } - - // - // Since we are at a run boundry, with CurrentLbo and - // CurrentVbo being the first cluster of the next run, - // we see if the run we just added encompases the desired - // Vbo, and if so exit. Otherwise we set up two new - // First*boOfCurrentRun, and continue. - // - - if (CurrentVbo > Vbo) { - - LastCluster = TRUE; - - } else { - - FirstVboOfCurrentRun = CurrentVbo; - FirstLboOfCurrentRun = CurrentLbo; - } - } - break; - - default: - - DebugTrace(0, Dbg, "Illegal Cluster Type.\n", FatEntry); - - FatBugCheck( 0, 0, 0 ); - - break; - - } // switch() - } // while() - - // - // Load up the return parameters. - // - // On exit from the loop, Vbo still contains the desired Vbo, and - // CurrentVbo is the first byte after the run that contained the - // desired Vbo. - // - - *Allocated = TRUE; - - *Lbo = FirstLboOfCurrentRun + (Vbo - FirstVboOfCurrentRun); - - *ByteCount = CurrentVbo - Vbo; - - if (ARGUMENT_PRESENT(Index)) { - - // - // Note that Runs only needs to be accurate with respect to where we - // ended. Since partial-lookup cases will occur without exclusive - // synchronization, the Mcb itself may be much bigger by now. - // - - *Index = Runs - 1; - } - - try_exit: NOTHING; - - } _SEH2_FINALLY { - - DebugUnwind( FatLookupFileAllocation ); - - // - // We are done reading the Fat, so unpin the last page of fat - // that is hanging around - // - - FatUnpinBcb( IrpContext, Context.Bcb ); - - DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); - } _SEH2_END; - - return; -} - - -VOID -FatAddFileAllocation ( - IN PIRP_CONTEXT IrpContext, - IN PFCB FcbOrDcb, - IN PFILE_OBJECT FileObject OPTIONAL, - IN ULONG DesiredAllocationSize - ) - -/*++ - -Routine Description: - - This routine adds additional allocation to the specified file/directory. - Additional allocation is added by appending clusters to the file/directory. - - If the file already has a sufficient allocation then this procedure - is effectively a noop. - -Arguments: - - FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being modified. - This parameter must not specify the root dcb. - - FileObject - If supplied inform the cache manager of the change. - - DesiredAllocationSize - Supplies the minimum size, in bytes, that we want - allocated to the file/directory. - ---*/ - -{ - PVCB Vcb; - LARGE_MCB NewMcb; - PLARGE_MCB McbToCleanup = NULL; - PDIRENT Dirent = NULL; - ULONG NewAllocation; - PBCB Bcb = NULL; - BOOLEAN UnwindWeAllocatedDiskSpace = FALSE; - BOOLEAN UnwindAllocationSizeSet = FALSE; - BOOLEAN UnwindCacheManagerInformed = FALSE; - BOOLEAN UnwindWeInitializedMcb = FALSE; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatAddFileAllocation\n", 0); - DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); - DebugTrace( 0, Dbg, " DesiredAllocationSize = %8lx\n", DesiredAllocationSize); - - // - // If we haven't yet set the correct AllocationSize, do so. - // - - if (FcbOrDcb->Header.AllocationSize.QuadPart == FCB_LOOKUP_ALLOCATIONSIZE_HINT) { - - FatLookupFileAllocationSize( IrpContext, FcbOrDcb ); - } - - // - // Check for the benign case that the desired allocation is already - // within the allocation size. - // - - if (DesiredAllocationSize <= FcbOrDcb->Header.AllocationSize.LowPart) { - - DebugTrace(0, Dbg, "Desired size within current allocation.\n", 0); - - DebugTrace(-1, Dbg, "FatAddFileAllocation -> (VOID)\n", 0); - return; - } - - DebugTrace( 0, Dbg, "InitialAllocation = %08lx.\n", FcbOrDcb->Header.AllocationSize.LowPart); - - // - // Get a chunk of disk space that will fullfill our needs. If there - // was no initial allocation, start from the hint in the Vcb, otherwise - // try to allocate from the cluster after the initial allocation. - // - // If there was no initial allocation to the file, we can just use the - // Mcb in the FcbOrDcb, otherwise we have to use a new one, and merge - // it to the one in the FcbOrDcb. - // - - Vcb = FcbOrDcb->Vcb; - - _SEH2_TRY { - - if (FcbOrDcb->Header.AllocationSize.LowPart == 0) { - - LBO FirstLboOfFile; - - ASSERT( FcbOrDcb->FcbCondition == FcbGood ); - - FatGetDirentFromFcbOrDcb( IrpContext, - FcbOrDcb, - &Dirent, - &Bcb ); - - ASSERT( Bcb != NULL ); - - // - // Set this dirty right now since this call can fail. - // - - FatSetDirtyBcb( IrpContext, Bcb, Vcb, TRUE ); - - - FatAllocateDiskSpace( IrpContext, - Vcb, - 0, - &DesiredAllocationSize, - FALSE, - &FcbOrDcb->Mcb ); - - UnwindWeAllocatedDiskSpace = TRUE; - McbToCleanup = &FcbOrDcb->Mcb; - - // - // We have to update the dirent and FcbOrDcb copies of - // FirstClusterOfFile since before it was 0 - // - - FatLookupMcbEntry( FcbOrDcb->Vcb, - &FcbOrDcb->Mcb, - 0, - &FirstLboOfFile, - (PULONG)NULL, - NULL ); - - DebugTrace( 0, Dbg, "First Lbo of file will be %08lx.\n", FirstLboOfFile ); - - FcbOrDcb->FirstClusterOfFile = FatGetIndexFromLbo( Vcb, FirstLboOfFile ); - - Dirent->FirstClusterOfFile = (USHORT)FcbOrDcb->FirstClusterOfFile; - - if ( FatIsFat32(Vcb) ) { - - Dirent->FirstClusterOfFileHi = (USHORT)(FcbOrDcb->FirstClusterOfFile >> 16); - } - - // - // Note the size of the allocation we need to tell the cache manager about. - // - - NewAllocation = DesiredAllocationSize; - - } else { - - LBO LastAllocatedLbo; - VBO DontCare; - - // - // Get the first cluster following the current allocation. It is possible - // the Mcb is empty (or short, etc.) so we need to be slightly careful - // about making sure we don't lie with the hint. - // - - (void)FatLookupLastMcbEntry( FcbOrDcb->Vcb, &FcbOrDcb->Mcb, &DontCare, &LastAllocatedLbo, NULL ); - - // - // Try to get some disk space starting from there. - // - - NewAllocation = DesiredAllocationSize - FcbOrDcb->Header.AllocationSize.LowPart; - - FsRtlInitializeLargeMcb( &NewMcb, PagedPool ); - UnwindWeInitializedMcb = TRUE; - McbToCleanup = &NewMcb; - - FatAllocateDiskSpace( IrpContext, - Vcb, - (LastAllocatedLbo != ~0 ? - FatGetIndexFromLbo(Vcb,LastAllocatedLbo + 1) : - 0), - &NewAllocation, - FALSE, - &NewMcb ); - - UnwindWeAllocatedDiskSpace = TRUE; - } - - // - // Now that we increased the allocation of the file, mark it in the - // FcbOrDcb. Carefully prepare to handle an inability to grow the cache - // structures. - // - - FcbOrDcb->Header.AllocationSize.LowPart += NewAllocation; - - // - // Handle the maximal file case, where we may have just wrapped. Note - // that this must be the precise boundary case wrap, i.e. by one byte, - // so that the new allocation is actually one byte "less" as far as we're - // concerned. This is important for the extension case. - // - - if (FcbOrDcb->Header.AllocationSize.LowPart == 0) { - - NewAllocation -= 1; - FcbOrDcb->Header.AllocationSize.LowPart = 0xffffffff; - } - - UnwindAllocationSizeSet = TRUE; - - // - // Inform the cache manager to increase the section size - // - - if ( ARGUMENT_PRESENT(FileObject) && CcIsFileCached(FileObject) ) { - - CcSetFileSizes( FileObject, - (PCC_FILE_SIZES)&FcbOrDcb->Header.AllocationSize ); - UnwindCacheManagerInformed = TRUE; - } - - // - // In the extension case, we have held off actually gluing the new - // allocation onto the file. This simplifies exception cleanup since - // if it was already added and the section grow failed, we'd have to - // do extra work to unglue it. This way, we can assume that if we - // raise the only thing we need to do is deallocate the disk space. - // - // Merge the allocation now. - // - - if (FcbOrDcb->Header.AllocationSize.LowPart != NewAllocation) { - - // - // Tack the new Mcb onto the end of the FcbOrDcb one. - // - - FatMergeAllocation( IrpContext, - Vcb, - &FcbOrDcb->Mcb, - &NewMcb ); - } - - } _SEH2_FINALLY { - - DebugUnwind( FatAddFileAllocation ); - - // - // Give FlushFileBuffer a clue here. - // - - SetFlag(FcbOrDcb->FcbState, FCB_STATE_FLUSH_FAT); - - // - // If we were dogged trying to complete this operation, we need to go - // back various things out. - // - - if (_SEH2_AbnormalTermination()) { - - // - // Pull off the allocation size we tried to add to this object if - // we failed to grow cache structures or Mcb structures. - // - - if (UnwindAllocationSizeSet) { - - FcbOrDcb->Header.AllocationSize.LowPart -= NewAllocation; - } - - if (UnwindCacheManagerInformed) { - - CcSetFileSizes( FileObject, - (PCC_FILE_SIZES)&FcbOrDcb->Header.AllocationSize ); - } - - // - // In the case of initial allocation, we used the Fcb's Mcb and have - // to clean that up as well as the FAT chain references. - // - - if (FcbOrDcb->Header.AllocationSize.LowPart == 0) { - - if (Dirent != NULL) { - - FcbOrDcb->FirstClusterOfFile = 0; - Dirent->FirstClusterOfFile = 0; - - if ( FatIsFat32(Vcb) ) { - - Dirent->FirstClusterOfFileHi = 0; - } - } - } - - // - // ... and drop the dirent Bcb if we got it. Do it now - // so we can afford to take the exception if we have to. - // - - FatUnpinBcb( IrpContext, Bcb ); - - _SEH2_TRY { - - // - // Note this can re-raise. - // - - if ( UnwindWeAllocatedDiskSpace ) { - - FatDeallocateDiskSpace( IrpContext, Vcb, McbToCleanup ); - } - - } _SEH2_FINALLY { - - // - // We always want to clean up the non-initial allocation temporary Mcb, - // otherwise we have the Fcb's Mcb and we just truncate it away. - // - - if (UnwindWeInitializedMcb == TRUE) { - - // - // Note that we already know a raise is in progress. No danger - // of encountering the normal case code below and doing this again. - // - - FsRtlUninitializeLargeMcb( McbToCleanup ); - - } else { - - if (McbToCleanup) { - - FsRtlTruncateLargeMcb( McbToCleanup, 0 ); - } - } - } _SEH2_END; - } - - DebugTrace(-1, Dbg, "FatAddFileAllocation -> (VOID)\n", 0); - } _SEH2_END; - - // - // Non-exceptional cleanup we always want to do. In handling the re-raise possibilities - // during exceptions we had to make sure these two steps always happened there beforehand. - // So now we handle the usual case. - // - - FatUnpinBcb( IrpContext, Bcb ); - - if (UnwindWeInitializedMcb == TRUE) { - - FsRtlUninitializeLargeMcb( &NewMcb ); - } -} - - -VOID -FatTruncateFileAllocation ( - IN PIRP_CONTEXT IrpContext, - IN PFCB FcbOrDcb, - IN ULONG DesiredAllocationSize - ) - -/*++ - -Routine Description: - - This routine truncates the allocation to the specified file/directory. - - If the file is already smaller than the indicated size then this procedure - is effectively a noop. - - -Arguments: - - FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being modified - This parameter must not specify the root dcb. - - DesiredAllocationSize - Supplies the maximum size, in bytes, that we want - allocated to the file/directory. It is rounded - up to the nearest cluster. - -Return Value: - - VOID - TRUE if the operation completed and FALSE if it had to - block but could not. - ---*/ - -{ - PVCB Vcb; - PBCB Bcb = NULL; - LARGE_MCB RemainingMcb; - ULONG BytesPerCluster; - PDIRENT Dirent = NULL; - BOOLEAN UpdatedDirent = FALSE; - - ULONG UnwindInitialAllocationSize; - ULONG UnwindInitialFirstClusterOfFile; - BOOLEAN UnwindWeAllocatedMcb = FALSE; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatTruncateFileAllocation\n", 0); - DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); - DebugTrace( 0, Dbg, " DesiredAllocationSize = %8lx\n", DesiredAllocationSize); - - // - // If the Fcb isn't in good condition, we have no business whacking around on - // the disk after "its" clusters. - // - // Inspired by a Prefix complaint. - // - - ASSERT( FcbOrDcb->FcbCondition == FcbGood ); - - // - // If we haven't yet set the correct AllocationSize, do so. - // - - if (FcbOrDcb->Header.AllocationSize.QuadPart == FCB_LOOKUP_ALLOCATIONSIZE_HINT) { - - FatLookupFileAllocationSize( IrpContext, FcbOrDcb ); - } - - // - // Round up the Desired Allocation Size to the next cluster size - // - - Vcb = FcbOrDcb->Vcb; - - BytesPerCluster = 1 << Vcb->AllocationSupport.LogOfBytesPerCluster; - - // - // Note if the desired allocation is zero, to distinguish this from - // the wrap case below. - // - - if (DesiredAllocationSize != 0) { - - DesiredAllocationSize = (DesiredAllocationSize + (BytesPerCluster - 1)) & - ~(BytesPerCluster - 1); - // - // Check for the benign case that the file is already smaller than - // the desired truncation. Note that if it wraps, then a) it was - // specifying an offset in the maximally allocatable cluster and - // b) we're not asking to extend the file, either. So stop. - // - - if (DesiredAllocationSize == 0 || - DesiredAllocationSize >= FcbOrDcb->Header.AllocationSize.LowPart) { - - DebugTrace(0, Dbg, "Desired size within current allocation.\n", 0); - - DebugTrace(-1, Dbg, "FatTruncateFileAllocation -> (VOID)\n", 0); - return; - } - - } - - UnwindInitialAllocationSize = FcbOrDcb->Header.AllocationSize.LowPart; - UnwindInitialFirstClusterOfFile = FcbOrDcb->FirstClusterOfFile; - - // - // Update the FcbOrDcb allocation size. If it is now zero, we have the - // additional task of modifying the FcbOrDcb and Dirent copies of - // FirstClusterInFile. - // - // Note that we must pin the dirent before actually deallocating the - // disk space since, in unwind, it would not be possible to reallocate - // deallocated disk space as someone else may have reallocated it and - // may cause an exception when you try to get some more disk space. - // Thus FatDeallocateDiskSpace must be the final dangerous operation. - // - - _SEH2_TRY { - - FcbOrDcb->Header.AllocationSize.QuadPart = DesiredAllocationSize; - - // - // Special case 0 - // - - if (DesiredAllocationSize == 0) { - - // - // We have to update the dirent and FcbOrDcb copies of - // FirstClusterOfFile since before it was 0 - // - - ASSERT( FcbOrDcb->FcbCondition == FcbGood ); - - FatGetDirentFromFcbOrDcb( IrpContext, FcbOrDcb, &Dirent, &Bcb ); - - ASSERT( Dirent && Bcb ); - - Dirent->FirstClusterOfFile = 0; - - if (FatIsFat32(Vcb)) { - - Dirent->FirstClusterOfFileHi = 0; - } - - FcbOrDcb->FirstClusterOfFile = 0; - - FatSetDirtyBcb( IrpContext, Bcb, Vcb, TRUE ); - UpdatedDirent = TRUE; - - FatDeallocateDiskSpace( IrpContext, Vcb, &FcbOrDcb->Mcb ); - - FatRemoveMcbEntry( FcbOrDcb->Vcb, &FcbOrDcb->Mcb, 0, 0xFFFFFFFF ); - - } else { - - // - // Split the existing allocation into two parts, one we will keep, and - // one we will deallocate. - // - - FsRtlInitializeLargeMcb( &RemainingMcb, PagedPool ); - UnwindWeAllocatedMcb = TRUE; - - FatSplitAllocation( IrpContext, - Vcb, - &FcbOrDcb->Mcb, - DesiredAllocationSize, - &RemainingMcb ); - - FatDeallocateDiskSpace( IrpContext, Vcb, &RemainingMcb ); - - FsRtlUninitializeLargeMcb( &RemainingMcb ); - } - - } _SEH2_FINALLY { - - DebugUnwind( FatTruncateFileAllocation ); - - // - // Is this really the right backout strategy? It would be nice if we could - // pretend the truncate worked if we knew that the file had gotten into - // a consistent state. Leaving dangled clusters is probably quite preferable. - // - - if ( _SEH2_AbnormalTermination() ) { - - FcbOrDcb->Header.AllocationSize.LowPart = UnwindInitialAllocationSize; - - if ( (DesiredAllocationSize == 0) && (Dirent != NULL)) { - - if (UpdatedDirent) { - - // - // If the dirent has been updated ok and marked dirty, then we - // failed in deallocatediscspace, and don't know what state - // the on disc fat chain is in. So we throw away the mcb, - // and potentially loose a few clusters until the next - // chkdsk. The operation has succeeded, but the exception - // will still propogate. 5.1 - // - - FatRemoveMcbEntry( Vcb, &FcbOrDcb->Mcb, 0, 0xFFFFFFFF ); - FcbOrDcb->Header.AllocationSize.QuadPart = 0; - } - else { - - Dirent->FirstClusterOfFile = (USHORT)UnwindInitialFirstClusterOfFile; - - if ( FatIsFat32(Vcb) ) { - - Dirent->FirstClusterOfFileHi = - (USHORT)(UnwindInitialFirstClusterOfFile >> 16); - } - - FcbOrDcb->FirstClusterOfFile = UnwindInitialFirstClusterOfFile; - } - } - - if ( UnwindWeAllocatedMcb ) { - - FsRtlUninitializeLargeMcb( &RemainingMcb ); - } - - // - // Note that in the non zero truncation case, we will also - // leak clusters. However, apart from this, the in memory and on disc - // structures will agree. - } - - FatUnpinBcb( IrpContext, Bcb ); - - // - // Give FlushFileBuffer a clue here. - // - - SetFlag(FcbOrDcb->FcbState, FCB_STATE_FLUSH_FAT); - - DebugTrace(-1, Dbg, "FatTruncateFileAllocation -> (VOID)\n", 0); - } _SEH2_END; -} - - -VOID -FatLookupFileAllocationSize ( - IN PIRP_CONTEXT IrpContext, - IN PFCB FcbOrDcb - ) - -/*++ - -Routine Description: - - This routine retrieves the current file allocatio size for the - specified file/directory. - -Arguments: - - FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being modified - ---*/ - -{ - LBO Lbo; - ULONG ByteCount; - BOOLEAN DontCare; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatLookupAllocationSize\n", 0); - DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); - - // - // We call FatLookupFileAllocation with Vbo of 0xffffffff - 1. - // - - FatLookupFileAllocation( IrpContext, - FcbOrDcb, - MAXULONG - 1, - &Lbo, - &ByteCount, - &DontCare, - &DontCare, - NULL ); - - // - // FileSize was set at Fcb creation time from the contents of the directory entry, - // and we are only now looking up the real length of the allocation chain. If it - // cannot be contained, this is trash. Probably more where that came from. - // - - if (FcbOrDcb->Header.FileSize.LowPart > FcbOrDcb->Header.AllocationSize.LowPart) { - - FatPopUpFileCorrupt( IrpContext, FcbOrDcb ); - FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); - } - - DebugTrace(-1, Dbg, "FatLookupFileAllocationSize -> (VOID)\n", 0); - return; -} - - -VOID -FatAllocateDiskSpace ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG AbsoluteClusterHint, - IN PULONG ByteCount, - IN BOOLEAN ExactMatchRequired, - OUT PLARGE_MCB Mcb - ) - -/*++ - -Routine Description: - - This procedure allocates additional disk space and builds an mcb - representing the newly allocated space. If the space cannot be - allocated then this procedure raises an appropriate status. - - Searching starts from the hint index in the Vcb unless an alternative - non-zero hint is given in AlternateClusterHint. If we are using the - hint field in the Vcb, it is set to the cluster following our allocation - when we are done. - - Disk space can only be allocated in cluster units so this procedure - will round up any byte count to the next cluster boundary. - - Pictorially what is done is the following (where ! denotes the end of - the fat chain (i.e., FAT_CLUSTER_LAST)): - - - Mcb (empty) - - becomes - - Mcb |--a--|--b--|--c--! - - ^ - ByteCount ----------+ - -Arguments: - - Vcb - Supplies the VCB being modified - - AbsoluteClusterHint - Supplies an alternate hint index to start the - search from. If this is zero we use, and update, - the Vcb hint field. - - ByteCount - Supplies the number of bytes that we are requesting, and - receives the number of bytes that we got. - - ExactMatchRequired - Caller should set this to TRUE if only the precise run requested - is acceptable. - - Mcb - Receives the MCB describing the newly allocated disk space. The - caller passes in an initialized Mcb that is filled in by this procedure. - - Return Value: - - TRUE - Allocated ok - FALSE - Failed to allocate exactly as requested (=> ExactMatchRequired was TRUE) - ---*/ - -{ - UCHAR LogOfBytesPerCluster; - ULONG BytesPerCluster; - ULONG StartingCluster; - ULONG ClusterCount; - ULONG WindowRelativeHint; -#if DBG -#ifndef __REACTOS__ - ULONG i; -#endif - ULONG PreviousClear; -#endif - - PFAT_WINDOW Window; - BOOLEAN Wait; - BOOLEAN Result = TRUE; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatAllocateDiskSpace\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " *ByteCount = %8lx\n", *ByteCount); - DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); - DebugTrace( 0, Dbg, " Hint = %8lx\n", AbsoluteClusterHint); - - ASSERT((AbsoluteClusterHint <= Vcb->AllocationSupport.NumberOfClusters + 2) && (1 != AbsoluteClusterHint)); - - // - // Make sure byte count is not zero - // - - if (*ByteCount == 0) { - - DebugTrace(0, Dbg, "Nothing to allocate.\n", 0); - - DebugTrace(-1, Dbg, "FatAllocateDiskSpace -> (VOID)\n", 0); - return; - } - - // - // Compute the cluster count based on the byte count, rounding up - // to the next cluster if there is any remainder. Note that the - // pathalogical case BytesCount == 0 has been eliminated above. - // - - LogOfBytesPerCluster = Vcb->AllocationSupport.LogOfBytesPerCluster; - BytesPerCluster = 1 << LogOfBytesPerCluster; - - *ByteCount = (*ByteCount + (BytesPerCluster - 1)) - & ~(BytesPerCluster - 1); - - // - // If ByteCount is NOW zero, then we were asked for the maximal - // filesize (or at least for bytes in the last allocatable sector). - // - - if (*ByteCount == 0) { - - *ByteCount = 0xffffffff; - ClusterCount = 1 << (32 - LogOfBytesPerCluster); - - } else { - - ClusterCount = (*ByteCount >> LogOfBytesPerCluster); - } - - // - // Make sure there are enough free clusters to start with, and - // take them now so that nobody else takes them from us. - // - - ExAcquireResourceSharedLite(&Vcb->ChangeBitMapResource, TRUE); - FatLockFreeClusterBitMap( Vcb ); - - if (ClusterCount <= Vcb->AllocationSupport.NumberOfFreeClusters) { - - Vcb->AllocationSupport.NumberOfFreeClusters -= ClusterCount; - - } else { - - FatUnlockFreeClusterBitMap( Vcb ); - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - - DebugTrace(0, Dbg, "Disk Full. Raise Status.\n", 0); - FatRaiseStatus( IrpContext, STATUS_DISK_FULL ); - } - - // - // Did the caller supply a hint? - // - - if ((0 != AbsoluteClusterHint) && (AbsoluteClusterHint < (Vcb->AllocationSupport.NumberOfClusters + 2))) { - - if (Vcb->NumberOfWindows > 1) { - - // - // If we're being called upon to allocate clusters outside the - // current window (which happens only via MoveFile), it's a problem. - // We address this by changing the current window to be the one which - // contains the alternate cluster hint. Note that if the user's - // request would cross a window boundary, he doesn't really get what - // he wanted. - // - - if (AbsoluteClusterHint < Vcb->CurrentWindow->FirstCluster || - AbsoluteClusterHint > Vcb->CurrentWindow->LastCluster) { - - ULONG BucketNum = FatWindowOfCluster( AbsoluteClusterHint ); - - ASSERT( BucketNum < Vcb->NumberOfWindows); - - // - // Drop our shared lock on the ChangeBitMapResource, and pick it up again - // exclusive in preparation for making the window swap. - // - - FatUnlockFreeClusterBitMap(Vcb); - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - ExAcquireResourceExclusiveLite(&Vcb->ChangeBitMapResource, TRUE); - FatLockFreeClusterBitMap(Vcb); - - Window = &Vcb->Windows[BucketNum]; - - // - // Again, test the current window against the one we want - some other - // thread could have sneaked in behind our backs and kindly set it to the one - // we need, when we dropped and reacquired the ChangeBitMapResource above. - // - - if (Window != Vcb->CurrentWindow) { - - _SEH2_TRY { - - Wait = BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); - SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); - - // - // Change to the new window (update Vcb->CurrentWindow) and scan it - // to build up a freespace bitmap etc. - // - - FatExamineFatEntries( IrpContext, Vcb, - 0, - 0, - FALSE, - Window, - NULL); - - } _SEH2_FINALLY { - - if (!Wait) { - - ClearFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); - } - - if (_SEH2_AbnormalTermination()) { - - // - // We will have raised as a result of failing to pick up the - // chunk of the FAT for this window move. Release our resources - // and return the cluster count to the volume. - // - - Vcb->AllocationSupport.NumberOfFreeClusters += ClusterCount; - - FatUnlockFreeClusterBitMap( Vcb ); - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - } - } _SEH2_END; - } - } - - // - // Make the hint cluster number relative to the base of the current window... - // - // Currentwindow->Firstcluster is baised by +2 already, so we will lose the - // bias already in AbsoluteClusterHint. Put it back.... - // - - WindowRelativeHint = AbsoluteClusterHint - Vcb->CurrentWindow->FirstCluster + 2; - } - else { - - // - // Only one 'window', ie fat16/12. No modification necessary. - // - - WindowRelativeHint = AbsoluteClusterHint; - } - } - else { - - // - // Either no hint supplied, or it was out of range, so grab one from the Vcb - // - // NOTE: Clusterhint in the Vcb is not guaranteed to be set (may be -1) - // - - WindowRelativeHint = Vcb->ClusterHint; - AbsoluteClusterHint = 0; - - // - // Vcb hint may not have been initialized yet. Force to valid cluster. - // - - if (-1 == WindowRelativeHint) { - - WindowRelativeHint = 2; - } - } - - ASSERT((WindowRelativeHint >= 2) && (WindowRelativeHint < Vcb->FreeClusterBitMap.SizeOfBitMap + 2)); - - // - // Keep track of the window we're allocating from, so we can clean - // up correctly if the current window changes after we unlock the - // bitmap. - // - - Window = Vcb->CurrentWindow; - - // - // Try to find a run of free clusters large enough for us. - // - - StartingCluster = FatFindFreeClusterRun( IrpContext, - Vcb, - ClusterCount, - WindowRelativeHint ); - // - // If the above call was successful, we can just update the fat - // and Mcb and exit. Otherwise we have to look for smaller free - // runs. - // - // This test is a bit funky. Note that the error return from - // RtlFindClearBits is -1, and adding two to that is 1. - // - - if ((StartingCluster != 1) && - ((0 == AbsoluteClusterHint) || (StartingCluster == WindowRelativeHint)) - ) { - -#if DBG - PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); -#endif // DBG - - // - // Take the clusters we found, and unlock the bit map. - // - - FatReserveClusters(IrpContext, Vcb, StartingCluster, ClusterCount); - - Window->ClustersFree -= ClusterCount; - - StartingCluster += Window->FirstCluster; - StartingCluster -= 2; - - ASSERT( PreviousClear - ClusterCount == Window->ClustersFree ); - - FatUnlockFreeClusterBitMap( Vcb ); - - // - // Note that this call will never fail since there is always - // room for one entry in an empty Mcb. - // - - FatAddMcbEntry( Vcb, Mcb, - 0, - FatGetLboFromIndex( Vcb, StartingCluster ), - *ByteCount); - _SEH2_TRY { - - // - // Update the fat. - // - - FatAllocateClusters(IrpContext, Vcb, - StartingCluster, - ClusterCount); - - } _SEH2_FINALLY { - - DebugUnwind( FatAllocateDiskSpace ); - - // - // If the allocate clusters failed, remove the run from the Mcb, - // unreserve the clusters, and reset the free cluster count. - // - - if (_SEH2_AbnormalTermination()) { - - FatRemoveMcbEntry( Vcb, Mcb, 0, *ByteCount ); - - FatLockFreeClusterBitMap( Vcb ); - - // Only clear bits if the bitmap window is the same. - - if (Window == Vcb->CurrentWindow) { - - // Both values (startingcluster and window->firstcluster) are - // already biased by 2, so will cancel, so we need to add in the 2 again. - - FatUnreserveClusters( IrpContext, Vcb, - StartingCluster - Window->FirstCluster + 2, - ClusterCount ); - } - - Window->ClustersFree += ClusterCount; - Vcb->AllocationSupport.NumberOfFreeClusters += ClusterCount; - - FatUnlockFreeClusterBitMap( Vcb ); - } - - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - } _SEH2_END; - - } else { - - // - // Note that Index is a zero-based window-relative number. When appropriate - // it'll get converted into a true cluster number and put in Cluster, which - // will be a volume relative true cluster number. - // - - ULONG Index; - ULONG Cluster; - ULONG CurrentVbo; - ULONG PriorLastCluster; - ULONG BytesFound; - - ULONG ClustersFound = 0; - ULONG ClustersRemaining; - - BOOLEAN LockedBitMap = FALSE; - BOOLEAN SelectNextContigWindow = FALSE; - - // - // Drop our shared lock on the ChangeBitMapResource, and pick it up again - // exclusive in preparation for making a window swap. - // - - FatUnlockFreeClusterBitMap(Vcb); - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - ExAcquireResourceExclusiveLite(&Vcb->ChangeBitMapResource, TRUE); - FatLockFreeClusterBitMap(Vcb); - LockedBitMap = TRUE; - - _SEH2_TRY { - - if ( ExactMatchRequired && (1 == Vcb->NumberOfWindows)) { - - // - // Give up right now, there are no more windows to search! RtlFindClearBits - // searchs the whole bitmap, so we would have found any contiguous run - // large enough. - // - - try_leave( Result = FALSE); - } - - // - // While the request is still incomplete, look for the largest - // run of free clusters, mark them taken, allocate the run in - // the Mcb and Fat, and if this isn't the first time through - // the loop link it to prior run on the fat. The Mcb will - // coalesce automatically. - // - - ClustersRemaining = ClusterCount; - CurrentVbo = 0; - PriorLastCluster = 0; - - while (ClustersRemaining != 0) { - - // - // If we just entered the loop, the bit map is already locked - // - - if ( !LockedBitMap ) { - - FatLockFreeClusterBitMap( Vcb ); - LockedBitMap = TRUE; - } - - // - // Find the largest run of free clusters. If the run is - // bigger than we need, only use what we need. Note that - // this will then be the last while() iteration. - // - - // 12/3/95: need to bias bitmap by 2 bits for the defrag - // hooks and the below macro became impossible to do without in-line - // procedures. - // - // ClustersFound = FatLongestFreeClusterRun( IrpContext, Vcb, &Index ); - - ClustersFound = 0; - - if (!SelectNextContigWindow) { - - if ( 0 != WindowRelativeHint) { - - ULONG Desired = Vcb->FreeClusterBitMap.SizeOfBitMap - (WindowRelativeHint - 2); - - // - // We will try to allocate contiguously. Try from the current hint the to - // end of current window. Don't try for more than we actually need. - // - - if (Desired > ClustersRemaining) { - - Desired = ClustersRemaining; - } - - if (RtlAreBitsClear( &Vcb->FreeClusterBitMap, - WindowRelativeHint - 2, - Desired)) - { - // - // Clusters from hint->...windowend are free. Take them. - // - - Index = WindowRelativeHint - 2; - ClustersFound = Desired; - - if (FatIsFat32(Vcb)) { - - // - // We're now up against the end of the current window, so indicate that we - // want the next window in the sequence next time around. (If we're not up - // against the end of the window, then we got what we needed and won't be - // coming around again anyway). - // - - SelectNextContigWindow = TRUE; - WindowRelativeHint = 2; - } - else { - - // - // FAT 12/16 - we've run up against the end of the volume. Clear the - // hint, since we now have no idea where to look. - // - - WindowRelativeHint = 0; - } -#if DBG - PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); -#endif // DBG - } - else { - - if (ExactMatchRequired) { - - // - // If our caller required an exact match, then we're hosed. Bail out now. - // - - try_leave( Result = FALSE); - } - - // - // Hint failed, drop back to pot luck - // - - WindowRelativeHint = 0; - } - } - - if ((0 == WindowRelativeHint) && (0 == ClustersFound)) { - - if (ClustersRemaining <= Vcb->CurrentWindow->ClustersFree) { - - // - // The remaining allocation could be satisfied entirely from this - // window. We will ask only for what we need, to try and avoid - // unnecessarily fragmenting large runs of space by always using - // (part of) the largest run we can find. This call will return the - // first run large enough. - // - - Index = RtlFindClearBits( &Vcb->FreeClusterBitMap, ClustersRemaining, 0); - - if (-1 != Index) { - - ClustersFound = ClustersRemaining; - } - } - - if (0 == ClustersFound) { - - // - // Still nothing, so just take the largest free run we can find. - // - - ClustersFound = RtlFindLongestRunClear( &Vcb->FreeClusterBitMap, &Index ); - - } -#if DBG - PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); -#endif // DBG - if (ClustersFound >= ClustersRemaining) { - - ClustersFound = ClustersRemaining; - } - else { - - // - // If we just ran up to the end of a window, set up a hint that - // we'd like the next consecutive window after this one. (FAT32 only) - // - - if ( ((Index + ClustersFound) == Vcb->FreeClusterBitMap.SizeOfBitMap) && - FatIsFat32( Vcb) - ) { - - SelectNextContigWindow = TRUE; - WindowRelativeHint = 2; - } - } - } - } - - if (ClustersFound == 0) { - - ULONG FaveWindow = 0; - BOOLEAN SelectedWindow; - - // - // If we found no free clusters on a single-window FAT, - // there was a bad problem with the free cluster count. - // - - if (1 == Vcb->NumberOfWindows) { - - FatBugCheck( 0, 5, 0 ); - } - - // - // Switch to a new bucket. Possibly the next one if we're - // currently on a roll (allocating contiguously) - // - - SelectedWindow = FALSE; - - if ( SelectNextContigWindow) { - - ULONG NextWindow; - - NextWindow = (((ULONG)((PUCHAR)Vcb->CurrentWindow - (PUCHAR)Vcb->Windows)) / sizeof( FAT_WINDOW)) + 1; - - if ((NextWindow < Vcb->NumberOfWindows) && - ( Vcb->Windows[ NextWindow].ClustersFree > 0) - ) { - - FaveWindow = NextWindow; - SelectedWindow = TRUE; - } - else { - - if (ExactMatchRequired) { - - // - // Some dope tried to allocate a run past the end of the volume... - // - - try_leave( Result = FALSE); - } - - // - // Give up on the contiguous allocation attempts - // - - WindowRelativeHint = 0; - } - - SelectNextContigWindow = FALSE; - } - - if (!SelectedWindow) { - - // - // Select a new window to begin allocating from - // - - FaveWindow = FatSelectBestWindow( Vcb); - } - - // - // By now we'd better have found a window with some free clusters - // - - if (0 == Vcb->Windows[ FaveWindow].ClustersFree) { - - FatBugCheck( 0, 5, 1 ); - } - - Wait = BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); - SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); - - FatExamineFatEntries( IrpContext, Vcb, - 0, - 0, - FALSE, - &Vcb->Windows[FaveWindow], - NULL); - - if (!Wait) { - - ClearFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); - } - - // - // Now we'll just go around the loop again, having switched windows, - // and allocate.... - // -#if DBG - PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); -#endif //DBG - } // if (clustersfound == 0) - else { - - // - // Take the clusters we found, convert our index to a cluster number - // and unlock the bit map. - // - - Window = Vcb->CurrentWindow; - - FatReserveClusters( IrpContext, Vcb, (Index + 2), ClustersFound ); - - Cluster = Index + Window->FirstCluster; - - Window->ClustersFree -= ClustersFound; - ASSERT( PreviousClear - ClustersFound == Window->ClustersFree ); - - FatUnlockFreeClusterBitMap( Vcb ); - LockedBitMap = FALSE; - - // - // Add the newly alloced run to the Mcb. - // - - BytesFound = ClustersFound << LogOfBytesPerCluster; - - FatAddMcbEntry( Vcb, Mcb, - CurrentVbo, - FatGetLboFromIndex( Vcb, Cluster ), - BytesFound ); - - // - // Connect the last allocated run with this one, and allocate - // this run on the Fat. - // - - if (PriorLastCluster != 0) { - - FatSetFatEntry( IrpContext, - Vcb, - PriorLastCluster, - (FAT_ENTRY)Cluster ); - } - - // - // Update the fat - // - - FatAllocateClusters( IrpContext, Vcb, Cluster, ClustersFound ); - - // - // Prepare for the next iteration. - // - - CurrentVbo += BytesFound; - ClustersRemaining -= ClustersFound; - PriorLastCluster = Cluster + ClustersFound - 1; - } - } // while (clustersremaining) - - } _SEH2_FINALLY { - - DebugUnwind( FatAllocateDiskSpace ); - - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - - // - // Is there any unwinding to do? - // - - if ( _SEH2_AbnormalTermination() || (FALSE == Result)) { - - // - // Flag to the caller that they're getting nothing - // - - *ByteCount = 0; - - // - // There are three places we could have taken this exception: - // when switching the window (FatExamineFatEntries), adding - // a found run to the Mcb (FatAddMcbEntry), or when writing - // the changes to the FAT (FatSetFatEntry). In the first case - // we don't have anything to unwind before deallocation, and - // can detect this by seeing if we have the ClusterBitmap - // mutex out. - - if (!LockedBitMap) { - - FatLockFreeClusterBitMap( Vcb ); - - // - // In these cases, we have the possiblity that the FAT - // window is still in place and we need to clear the bits. - // If the Mcb entry isn't there (we raised trying to add - // it), the effect of trying to remove it is a noop. - // - - if (Window == Vcb->CurrentWindow) { - - // - // Cluster reservation works on cluster 2 based window-relative - // numbers, so we must convert. The subtraction will lose the - // cluster 2 base, so bias the result. - // - - FatUnreserveClusters( IrpContext, Vcb, - (Cluster - Window->FirstCluster) + 2, - ClustersFound ); - } - - // - // Note that FatDeallocateDiskSpace will take care of adjusting - // to account for the entries in the Mcb. All we have to account - // for is the last run that didn't make it. - // - - Window->ClustersFree += ClustersFound; - Vcb->AllocationSupport.NumberOfFreeClusters += ClustersFound; - - FatUnlockFreeClusterBitMap( Vcb ); - - FatRemoveMcbEntry( Vcb, Mcb, CurrentVbo, BytesFound ); - - } else { - - // - // Just drop the mutex now - we didn't manage to do anything - // that needs to be backed out. - // - - FatUnlockFreeClusterBitMap( Vcb ); - } - - _SEH2_TRY { - - // - // Now we have tidied up, we are ready to just send the Mcb - // off to deallocate disk space - // - - FatDeallocateDiskSpace( IrpContext, Vcb, Mcb ); - - } _SEH2_FINALLY { - - // - // Now finally (really), remove all the entries from the mcb - // - - FatRemoveMcbEntry( Vcb, Mcb, 0, 0xFFFFFFFF ); - } _SEH2_END; - } - - DebugTrace(-1, Dbg, "FatAllocateDiskSpace -> (VOID)\n", 0); - - } _SEH2_END; // finally - } - - return; -} - - -VOID -FatDeallocateDiskSpace ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN PLARGE_MCB Mcb - ) - -/*++ - -Routine Description: - - This procedure deallocates the disk space denoted by an input - mcb. Note that the input MCB does not need to necessarily describe - a chain that ends with a FAT_CLUSTER_LAST entry. - - Pictorially what is done is the following - - Fat |--a--|--b--|--c--| - Mcb |--a--|--b--|--c--| - - becomes - - Fat |--0--|--0--|--0--| - Mcb |--a--|--b--|--c--| - -Arguments: - - Vcb - Supplies the VCB being modified - - Mcb - Supplies the MCB describing the disk space to deallocate. Note - that Mcb is unchanged by this procedure. - - -Return Value: - - None. - ---*/ - -{ - LBO Lbo; - VBO Vbo; - - ULONG RunsInMcb; - ULONG ByteCount; - ULONG ClusterCount; - ULONG ClusterIndex; - ULONG McbIndex; - - UCHAR LogOfBytesPerCluster; - - PFAT_WINDOW Window; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatDeallocateDiskSpace\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); - - LogOfBytesPerCluster = Vcb->AllocationSupport.LogOfBytesPerCluster; - - RunsInMcb = FsRtlNumberOfRunsInLargeMcb( Mcb ); - - if ( RunsInMcb == 0 ) { - - DebugTrace(-1, Dbg, "FatDeallocateDiskSpace -> (VOID)\n", 0); - return; - } - - _SEH2_TRY { - - // - // Run though the Mcb, freeing all the runs in the fat. - // - // We do this in two steps (first update the fat, then the bitmap - // (which can't fail)) to prevent other people from taking clusters - // that we need to re-allocate in the event of unwind. - // - - ExAcquireResourceSharedLite(&Vcb->ChangeBitMapResource, TRUE); - - RunsInMcb = FsRtlNumberOfRunsInLargeMcb( Mcb ); - - for ( McbIndex = 0; McbIndex < RunsInMcb; McbIndex++ ) { - - FatGetNextMcbEntry( Vcb, Mcb, McbIndex, &Vbo, &Lbo, &ByteCount ); - - // - // Assert that Fat files have no holes. - // - - ASSERT( Lbo != 0 ); - - // - // Write FAT_CLUSTER_AVAILABLE to each cluster in the run. - // - - ClusterCount = ByteCount >> LogOfBytesPerCluster; - ClusterIndex = FatGetIndexFromLbo( Vcb, Lbo ); - - FatFreeClusters( IrpContext, Vcb, ClusterIndex, ClusterCount ); - } - - // - // From now on, nothing can go wrong .... (as in raise) - // - - FatLockFreeClusterBitMap( Vcb ); - - for ( McbIndex = 0; McbIndex < RunsInMcb; McbIndex++ ) { - - ULONG ClusterEnd; - ULONG MyStart, MyLength, count; -#if DBG -#ifndef __REACTOS__ - ULONG PreviousClear, i; -#else - ULONG i; -#endif -#endif - - FatGetNextMcbEntry( Vcb, Mcb, McbIndex, &Vbo, &Lbo, &ByteCount ); - - // - // Mark the bits clear in the FreeClusterBitMap. - // - - ClusterCount = ByteCount >> LogOfBytesPerCluster; - ClusterIndex = FatGetIndexFromLbo( Vcb, Lbo ); - - Window = Vcb->CurrentWindow; - - // - // If we've divided the bitmap, elide bitmap manipulation for - // runs that are outside the current bucket. - // - - ClusterEnd = ClusterIndex + ClusterCount - 1; - - if (!(ClusterIndex > Window->LastCluster || - ClusterEnd < Window->FirstCluster)) { - - // - // The run being freed overlaps the current bucket, so we'll - // have to clear some bits. - // - - if (ClusterIndex < Window->FirstCluster && - ClusterEnd > Window->LastCluster) { - - MyStart = Window->FirstCluster; - MyLength = Window->LastCluster - Window->FirstCluster + 1; - - } else if (ClusterIndex < Window->FirstCluster) { - - MyStart = Window->FirstCluster; - MyLength = ClusterEnd - Window->FirstCluster + 1; - - } else { - - // - // The range being freed starts in the bucket, and may possibly - // extend beyond the bucket. - // - - MyStart = ClusterIndex; - - if (ClusterEnd <= Window->LastCluster) { - - MyLength = ClusterCount; - - } else { - - MyLength = Window->LastCluster - ClusterIndex + 1; - } - } - - if (MyLength == 0) { - - continue; - } - -#if DBG -#ifndef __REACTOS__ - PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); -#endif - - - // - // Verify that the Bits are all really set. - // - - ASSERT( MyStart + MyLength - Window->FirstCluster <= Vcb->FreeClusterBitMap.SizeOfBitMap ); - - for (i = 0; i < MyLength; i++) { - - ASSERT( RtlCheckBit(&Vcb->FreeClusterBitMap, - MyStart - Window->FirstCluster + i) == 1 ); - } -#endif // DBG - - FatUnreserveClusters( IrpContext, Vcb, - MyStart - Window->FirstCluster + 2, - MyLength ); - } - - // - // Adjust the ClustersFree count for each bitmap window, even the ones - // that are not the current window. - // - - if (FatIsFat32(Vcb)) { - - Window = &Vcb->Windows[FatWindowOfCluster( ClusterIndex )]; - - } else { - - Window = &Vcb->Windows[0]; - } - - MyStart = ClusterIndex; - - for (MyLength = ClusterCount; MyLength > 0; MyLength -= count) { - - count = FatMin(Window->LastCluster - MyStart + 1, MyLength); - Window->ClustersFree += count; - - // - // If this was not the last window this allocation spanned, - // advance to the next. - // - - if (MyLength != count) { - - Window++; - MyStart = Window->FirstCluster; - } - } - - // - // Deallocation is now complete. Adjust the free cluster count. - // - - Vcb->AllocationSupport.NumberOfFreeClusters += ClusterCount; - } - -#if DBG - if (Vcb->CurrentWindow->ClustersFree != - RtlNumberOfClearBits(&Vcb->FreeClusterBitMap)) { - - DbgPrint("%x vs %x\n", Vcb->CurrentWindow->ClustersFree, - RtlNumberOfClearBits(&Vcb->FreeClusterBitMap)); - - DbgPrint("%x for %x\n", ClusterIndex, ClusterCount); - } -#endif - - FatUnlockFreeClusterBitMap( Vcb ); - - - } _SEH2_FINALLY { - - DebugUnwind( FatDeallocateDiskSpace ); - - // - // Is there any unwinding to do? - // - - ExReleaseResourceLite(&Vcb->ChangeBitMapResource); - - if ( _SEH2_AbnormalTermination() ) { - - LBO Lbo; - VBO Vbo; - - ULONG Index; - ULONG Clusters; - ULONG FatIndex; - ULONG PriorLastIndex; - - // - // For each entry we already deallocated, reallocate it, - // chaining together as nessecary. Note that we continue - // up to and including the last "for" iteration even though - // the SetFatRun could not have been successful. This - // allows us a convienent way to re-link the final successful - // SetFatRun. - // - // It is possible that the reason we got here will prevent us - // from succeeding in this operation. - // - - PriorLastIndex = 0; - - for (Index = 0; Index <= McbIndex; Index++) { - - FatGetNextMcbEntry(Vcb, Mcb, Index, &Vbo, &Lbo, &ByteCount); - - FatIndex = FatGetIndexFromLbo( Vcb, Lbo ); - Clusters = ByteCount >> LogOfBytesPerCluster; - - // - // We must always restore the prior iteration's last - // entry, pointing it to the first cluster of this run. - // - - if (PriorLastIndex != 0) { - - FatSetFatEntry( IrpContext, - Vcb, - PriorLastIndex, - (FAT_ENTRY)FatIndex ); - } - - // - // If this is not the last entry (the one that failed) - // then reallocate the disk space on the fat. - // - - if ( Index < McbIndex ) { - - FatAllocateClusters(IrpContext, Vcb, FatIndex, Clusters); - - PriorLastIndex = FatIndex + Clusters - 1; - } - } - } - - DebugTrace(-1, Dbg, "FatDeallocateDiskSpace -> (VOID)\n", 0); - } _SEH2_END; - - return; -} - - -VOID -FatSplitAllocation ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN OUT PLARGE_MCB Mcb, - IN VBO SplitAtVbo, - OUT PLARGE_MCB RemainingMcb - ) - -/*++ - -Routine Description: - - This procedure takes a single mcb and splits its allocation into - two separate allocation units. The separation must only be done - on cluster boundaries, otherwise we bugcheck. - - On the disk this actually works by inserting a FAT_CLUSTER_LAST into - the last index of the first part being split out. - - Pictorially what is done is the following (where ! denotes the end of - the fat chain (i.e., FAT_CLUSTER_LAST)): - - - Mcb |--a--|--b--|--c--|--d--|--e--|--f--| - - ^ - SplitAtVbo ---------------------+ - - RemainingMcb (empty) - - becomes - - Mcb |--a--|--b--|--c--! - - - RemainingMcb |--d--|--e--|--f--| - -Arguments: - - Vcb - Supplies the VCB being modified - - Mcb - Supplies the MCB describing the allocation being split into - two parts. Upon return this Mcb now contains the first chain. - - SplitAtVbo - Supplies the VBO of the first byte for the second chain - that we creating. - - RemainingMcb - Receives the MCB describing the second chain of allocated - disk space. The caller passes in an initialized Mcb that - is filled in by this procedure STARTING AT VBO 0. - -Return Value: - - VOID - TRUE if the operation completed and FALSE if it had to - block but could not. - ---*/ - -{ - VBO SourceVbo; - VBO TargetVbo; - VBO DontCare; - - LBO Lbo; - - ULONG ByteCount; - ULONG BytesPerCluster; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatSplitAllocation\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); - DebugTrace( 0, Dbg, " SplitAtVbo = %8lx\n", SplitAtVbo); - DebugTrace( 0, Dbg, " RemainingMcb = %8lx\n", RemainingMcb); - - BytesPerCluster = 1 << Vcb->AllocationSupport.LogOfBytesPerCluster; - - // - // Assert that the split point is cluster alligned - // - - ASSERT( (SplitAtVbo & (BytesPerCluster - 1)) == 0 ); - - // - // We should never be handed an empty source MCB and asked to split - // at a non zero point. - // - - ASSERT( !((0 != SplitAtVbo) && (0 == FsRtlNumberOfRunsInLargeMcb( Mcb)))); - - // - // Assert we were given an empty target Mcb. - // - - // - // This assert is commented out to avoid hitting in the Ea error - // path. In that case we will be using the same Mcb's to split the - // allocation that we used to merge them. The target Mcb will contain - // the runs that the split will attempt to insert. - // - // - // ASSERT( FsRtlNumberOfRunsInMcb( RemainingMcb ) == 0 ); - // - - _SEH2_TRY { - - // - // Move the runs after SplitAtVbo from the souce to the target - // - - SourceVbo = SplitAtVbo; - TargetVbo = 0; - - while (FatLookupMcbEntry(Vcb, Mcb, SourceVbo, &Lbo, &ByteCount, NULL)) { - - FatAddMcbEntry( Vcb, RemainingMcb, TargetVbo, Lbo, ByteCount ); - - FatRemoveMcbEntry( Vcb, Mcb, SourceVbo, ByteCount ); - - TargetVbo += ByteCount; - SourceVbo += ByteCount; - - // - // If SourceVbo overflows, we were actually snipping off the end - // of the maximal file ... and are now done. - // - - if (SourceVbo == 0) { - - break; - } - } - - // - // Mark the last pre-split cluster as a FAT_LAST_CLUSTER - // - - if ( SplitAtVbo != 0 ) { - - FatLookupLastMcbEntry( Vcb, Mcb, &DontCare, &Lbo, NULL ); - - FatSetFatEntry( IrpContext, - Vcb, - FatGetIndexFromLbo( Vcb, Lbo ), - FAT_CLUSTER_LAST ); - } - - } _SEH2_FINALLY { - - DebugUnwind( FatSplitAllocation ); - - // - // If we got an exception, we must glue back together the Mcbs - // - - if ( _SEH2_AbnormalTermination() ) { - - TargetVbo = SplitAtVbo; - SourceVbo = 0; - - while (FatLookupMcbEntry(Vcb, RemainingMcb, SourceVbo, &Lbo, &ByteCount, NULL)) { - - FatAddMcbEntry( Vcb, Mcb, TargetVbo, Lbo, ByteCount ); - - FatRemoveMcbEntry( Vcb, RemainingMcb, SourceVbo, ByteCount ); - - TargetVbo += ByteCount; - SourceVbo += ByteCount; - } - } - - DebugTrace(-1, Dbg, "FatSplitAllocation -> (VOID)\n", 0); - } _SEH2_END; - - return; -} - - -VOID -FatMergeAllocation ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN OUT PLARGE_MCB Mcb, - IN PLARGE_MCB SecondMcb - ) - -/*++ - -Routine Description: - - This routine takes two separate allocations described by two MCBs and - joins them together into one allocation. - - Pictorially what is done is the following (where ! denotes the end of - the fat chain (i.e., FAT_CLUSTER_LAST)): - - - Mcb |--a--|--b--|--c--! - - SecondMcb |--d--|--e--|--f--| - - becomes - - Mcb |--a--|--b--|--c--|--d--|--e--|--f--| - - SecondMcb |--d--|--e--|--f--| - - -Arguments: - - Vcb - Supplies the VCB being modified - - Mcb - Supplies the MCB of the first allocation that is being modified. - Upon return this Mcb will also describe the newly enlarged - allocation - - SecondMcb - Supplies the ZERO VBO BASED MCB of the second allocation - that is being appended to the first allocation. This - procedure leaves SecondMcb unchanged. - -Return Value: - - VOID - TRUE if the operation completed and FALSE if it had to - block but could not. - ---*/ - -{ - VBO SpliceVbo; - LBO SpliceLbo; - - VBO SourceVbo; - VBO TargetVbo; - - LBO Lbo; - - ULONG ByteCount; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatMergeAllocation\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); - DebugTrace( 0, Dbg, " SecondMcb = %8lx\n", SecondMcb); - - _SEH2_TRY { - - // - // Append the runs from SecondMcb to Mcb - // - - (void)FatLookupLastMcbEntry( Vcb, Mcb, &SpliceVbo, &SpliceLbo, NULL ); - - SourceVbo = 0; - TargetVbo = SpliceVbo + 1; - - while (FatLookupMcbEntry(Vcb, SecondMcb, SourceVbo, &Lbo, &ByteCount, NULL)) { - - FatAddMcbEntry( Vcb, Mcb, TargetVbo, Lbo, ByteCount ); - - SourceVbo += ByteCount; - TargetVbo += ByteCount; - } - - // - // Link the last pre-merge cluster to the first cluster of SecondMcb - // - - FatLookupMcbEntry( Vcb, SecondMcb, 0, &Lbo, (PULONG)NULL, NULL ); - - FatSetFatEntry( IrpContext, - Vcb, - FatGetIndexFromLbo( Vcb, SpliceLbo ), - (FAT_ENTRY)FatGetIndexFromLbo( Vcb, Lbo ) ); - - } _SEH2_FINALLY { - - DebugUnwind( FatMergeAllocation ); - - // - // If we got an exception, we must remove the runs added to Mcb - // - - if ( _SEH2_AbnormalTermination() ) { - - ULONG CutLength; - - if ((CutLength = TargetVbo - (SpliceVbo + 1)) != 0) { - - FatRemoveMcbEntry( Vcb, Mcb, SpliceVbo + 1, CutLength); - } - } - - DebugTrace(-1, Dbg, "FatMergeAllocation -> (VOID)\n", 0); - } _SEH2_END; - - return; -} - - -// -// Internal support routine -// - -CLUSTER_TYPE -FatInterpretClusterType ( - IN PVCB Vcb, - IN FAT_ENTRY Entry - ) - -/*++ - -Routine Description: - - This procedure tells the caller how to interpret the input fat table - entry. It will indicate if the fat cluster is available, resereved, - bad, the last one, or the another fat index. This procedure can deal - with both 12 and 16 bit fat. - -Arguments: - - Vcb - Supplies the Vcb to examine, yields 12/16 bit info - - Entry - Supplies the fat entry to examine - -Return Value: - - CLUSTER_TYPE - Is the type of the input Fat entry - ---*/ - -{ - DebugTrace(+1, Dbg, "InterpretClusterType\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " Entry = %8lx\n", Entry); - - PAGED_CODE(); - - switch(Vcb->AllocationSupport.FatIndexBitSize ) { - case 32: - Entry &= FAT32_ENTRY_MASK; - break; - - case 12: - ASSERT( Entry <= 0xfff ); - if (Entry >= 0x0ff0) { - Entry |= 0x0FFFF000; - } - break; - - default: - case 16: - ASSERT( Entry <= 0xffff ); - if (Entry >= 0x0fff0) { - Entry |= 0x0FFF0000; - } - break; - } - - if (Entry == FAT_CLUSTER_AVAILABLE) { - - DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterAvailable\n", 0); - - return FatClusterAvailable; - - } else if (Entry < FAT_CLUSTER_RESERVED) { - - DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterNext\n", 0); - - return FatClusterNext; - - } else if (Entry < FAT_CLUSTER_BAD) { - - DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterReserved\n", 0); - - return FatClusterReserved; - - } else if (Entry == FAT_CLUSTER_BAD) { - - DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterBad\n", 0); - - return FatClusterBad; - - } else { - - DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterLast\n", 0); - - return FatClusterLast; - } -} - - -// -// Internal support routine -// - -VOID -FatLookupFatEntry ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG FatIndex, - IN OUT PULONG FatEntry, - IN OUT PFAT_ENUMERATION_CONTEXT Context - ) - -/*++ - -Routine Description: - - This routine takes an index into the fat and gives back the value - in the Fat at this index. At any given time, for a 16 bit fat, this - routine allows only one page per volume of the fat to be pinned in - memory. For a 12 bit bit fat, the entire fat (max 6k) is pinned. This - extra layer of caching makes the vast majority of requests very - fast. The context for this caching stored in a structure in the Vcb. - -Arguments: - - Vcb - Supplies the Vcb to examine, yields 12/16 bit info, - fat access context, etc. - - FatIndex - Supplies the fat index to examine. - - FatEntry - Receives the fat entry pointed to by FatIndex. Note that - it must point to non-paged pool. - - Context - This structure keeps track of a page of pinned fat between calls. - ---*/ - -{ - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatLookupFatEntry\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " FatIndex = %4x\n", FatIndex); - DebugTrace( 0, Dbg, " FatEntry = %8lx\n", FatEntry); - - // - // Make sure they gave us a valid fat index. - // - - FatVerifyIndexIsValid(IrpContext, Vcb, FatIndex); - - // - // Case on 12 or 16 bit fats. - // - // In the 12 bit case (mostly floppies) we always have the whole fat - // (max 6k bytes) pinned during allocation operations. This is possibly - // a wee bit slower, but saves headaches over fat entries with 8 bits - // on one page, and 4 bits on the next. - // - // The 16 bit case always keeps the last used page pinned until all - // operations are done and it is unpinned. - // - - // - // DEAL WITH 12 BIT CASE - // - - if (Vcb->AllocationSupport.FatIndexBitSize == 12) { - - // - // Check to see if the fat is already pinned, otherwise pin it. - // - - if (Context->Bcb == NULL) { - - FatReadVolumeFile( IrpContext, - Vcb, - FatReservedBytes( &Vcb->Bpb ), - FatBytesPerFat( &Vcb->Bpb ), - &Context->Bcb, - &Context->PinnedPage ); - } - - // - // Load the return value. - // - - - FatLookup12BitEntry( Context->PinnedPage, FatIndex, FatEntry ); - - } else if (Vcb->AllocationSupport.FatIndexBitSize == 32) { - - // - // DEAL WITH 32 BIT CASE - // - - ULONG PageEntryOffset; - ULONG OffsetIntoVolumeFile; - - // - // Initialize two local variables that help us. - // - OffsetIntoVolumeFile = FatReservedBytes(&Vcb->Bpb) + FatIndex * sizeof(FAT_ENTRY); - PageEntryOffset = (OffsetIntoVolumeFile % PAGE_SIZE) / sizeof(FAT_ENTRY); - - // - // Check to see if we need to read in a new page of fat - // - - if ((Context->Bcb == NULL) || - (OffsetIntoVolumeFile / PAGE_SIZE != Context->VboOfPinnedPage / PAGE_SIZE)) { - - // - // The entry wasn't in the pinned page, so must we unpin the current - // page (if any) and read in a new page. - // - - FatUnpinBcb( IrpContext, Context->Bcb ); - - FatReadVolumeFile( IrpContext, - Vcb, - OffsetIntoVolumeFile & ~(PAGE_SIZE - 1), - PAGE_SIZE, - &Context->Bcb, - &Context->PinnedPage ); - - Context->VboOfPinnedPage = OffsetIntoVolumeFile & ~(PAGE_SIZE - 1); - } - - // - // Grab the fat entry from the pinned page, and return - // - - *FatEntry = ((PULONG)(Context->PinnedPage))[PageEntryOffset] & FAT32_ENTRY_MASK; - - } else { - - // - // DEAL WITH 16 BIT CASE - // - - ULONG PageEntryOffset; - ULONG OffsetIntoVolumeFile; - - // - // Initialize two local variables that help us. - // - - OffsetIntoVolumeFile = FatReservedBytes(&Vcb->Bpb) + FatIndex * sizeof(USHORT); - PageEntryOffset = (OffsetIntoVolumeFile % PAGE_SIZE) / sizeof(USHORT); - - // - // Check to see if we need to read in a new page of fat - // - - if ((Context->Bcb == NULL) || - (OffsetIntoVolumeFile / PAGE_SIZE != Context->VboOfPinnedPage / PAGE_SIZE)) { - - // - // The entry wasn't in the pinned page, so must we unpin the current - // page (if any) and read in a new page. - // - - FatUnpinBcb( IrpContext, Context->Bcb ); - - FatReadVolumeFile( IrpContext, - Vcb, - OffsetIntoVolumeFile & ~(PAGE_SIZE - 1), - PAGE_SIZE, - &Context->Bcb, - &Context->PinnedPage ); - - Context->VboOfPinnedPage = OffsetIntoVolumeFile & ~(PAGE_SIZE - 1); - } - - // - // Grab the fat entry from the pinned page, and return - // - - *FatEntry = ((PUSHORT)(Context->PinnedPage))[PageEntryOffset]; - } - - DebugTrace(-1, Dbg, "FatLookupFatEntry -> (VOID)\n", 0); - return; -} - - -VOID -FatSetFatEntry ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG FatIndex, - IN FAT_ENTRY FatEntry - ) - -/*++ - -Routine Description: - - This routine takes an index into the fat and puts a value in the Fat - at this index. The routine special cases 12, 16 and 32 bit fats. In - all cases we go to the cache manager for a piece of the fat. - - We have a special form of this call for setting the DOS-style dirty bit. - Unlike the dirty bit in the boot sector, we do not go to special effort - to make sure that this hits the disk synchronously - if the system goes - down in the window between the dirty bit being set in the boot sector - and the FAT index zero dirty bit being lazy written, then life is tough. - - The only possible scenario is that Win9x may see what it thinks is a clean - volume that really isn't (hopefully Memphis will pay attention to our dirty - bit as well). The dirty bit will get out quickly, and if heavy activity is - occurring, then the dirty bit should actually be there virtually all of the - time since the act of cleaning the volume is the "rare" occurance. - - There are synchronization concerns that would crop up if we tried to make - this synchronous. This thread may already own the Bcb shared for the first - sector of the FAT (so we can't get it exclusive for a writethrough). This - would require some more serious replumbing to work around than I want to - consider at this time. - - We can and do, however, synchronously set the bit clean. - - At this point the reader should understand why the NT dirty bit is where it is. - -Arguments: - - Vcb - Supplies the Vcb to examine, yields 12/16/32 bit info, etc. - - FatIndex - Supplies the destination fat index. - - FatEntry - Supplies the source fat entry. - ---*/ - -{ - LBO Lbo; - PBCB Bcb = NULL; - ULONG SectorSize; - ULONG OffsetIntoVolumeFile; - ULONG WasWait = TRUE; - BOOLEAN RegularOperation = TRUE; - BOOLEAN CleaningOperation = FALSE; - BOOLEAN ReleaseMutex = FALSE; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatSetFatEntry\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " FatIndex = %4x\n", FatIndex); - DebugTrace( 0, Dbg, " FatEntry = %4x\n", FatEntry); - - // - // Make sure they gave us a valid fat index if this isn't the special - // clean-bit modifying call. - // - - if (FatIndex == FAT_DIRTY_BIT_INDEX) { - - // - // We are setting the clean bit state. Of course, we could - // have corruption that would cause us to try to fiddle the - // reserved index - we guard against this by having the - // special entry values use the reserved high 4 bits that - // we know that we'll never try to set. - // - - // - // We don't want to repin the FAT pages involved here. Just - // let the lazy writer hit them when it can. - // - - RegularOperation = FALSE; - - switch (FatEntry) { - case FAT_CLEAN_VOLUME: - FatEntry = FAT_CLEAN_ENTRY; - CleaningOperation = TRUE; - break; - - case FAT_DIRTY_VOLUME: - switch (Vcb->AllocationSupport.FatIndexBitSize) { - case 12: - FatEntry = FAT12_DIRTY_ENTRY; - break; - - case 32: - FatEntry = FAT32_DIRTY_ENTRY; - break; - - default: - FatEntry = FAT16_DIRTY_ENTRY; - break; - } - break; - - default: - FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); - break; - } - - // - // Disable dirtying semantics for the duration of this operation. Force this - // operation to wait for the duration. - // - - WasWait = FlagOn( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT ); - SetFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT | IRP_CONTEXT_FLAG_DISABLE_DIRTY ); - - } else { - - ASSERT( !(FatEntry & ~FAT32_ENTRY_MASK) ); - FatVerifyIndexIsValid(IrpContext, Vcb, FatIndex); - } - - // - // Set Sector Size - // - - SectorSize = 1 << Vcb->AllocationSupport.LogOfBytesPerSector; - - // - // Case on 12 or 16 bit fats. - // - // In the 12 bit case (mostly floppies) we always have the whole fat - // (max 6k bytes) pinned during allocation operations. This is possibly - // a wee bit slower, but saves headaches over fat entries with 8 bits - // on one page, and 4 bits on the next. - // - // In the 16 bit case we only read the page that we need to set the fat - // entry. - // - - // - // DEAL WITH 12 BIT CASE - // - - _SEH2_TRY { - - if (Vcb->AllocationSupport.FatIndexBitSize == 12) { - - PVOID PinnedFat; - - // - // Make sure we have a valid entry - // - - FatEntry &= 0xfff; - - // - // We read in the entire fat. Note that using prepare write marks - // the bcb pre-dirty, so we don't have to do it explicitly. - // - - OffsetIntoVolumeFile = FatReservedBytes( &Vcb->Bpb ) + FatIndex * 3 / 2; - - FatPrepareWriteVolumeFile( IrpContext, - Vcb, - FatReservedBytes( &Vcb->Bpb ), - FatBytesPerFat( &Vcb->Bpb ), - &Bcb, - &PinnedFat, - RegularOperation, - FALSE ); - - // - // Mark the sector(s) dirty in the DirtyFatMcb. This call is - // complicated somewhat for the 12 bit case since a single - // entry write can span two sectors (and pages). - // - // Get the Lbo for the sector where the entry starts, and add it to - // the dirty fat Mcb. - // - - Lbo = OffsetIntoVolumeFile & ~(SectorSize - 1); - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize); - - // - // If the entry started on the last byte of the sector, it continues - // to the next sector, so mark the next sector dirty as well. - // - // Note that this entry will simply coalese with the last entry, - // so this operation cannot fail. Also if we get this far, we have - // made it, so no unwinding will be needed. - // - - if ( (OffsetIntoVolumeFile & (SectorSize - 1)) == (SectorSize - 1) ) { - - Lbo += SectorSize; - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize ); - } - - // - // Store the entry into the fat; we need a little synchonization - // here and can't use a spinlock since the bytes might not be - // resident. - // - - FatLockFreeClusterBitMap( Vcb ); - ReleaseMutex = TRUE; - - FatSet12BitEntry( PinnedFat, FatIndex, FatEntry ); - - FatUnlockFreeClusterBitMap( Vcb ); - ReleaseMutex = FALSE; - - } else if (Vcb->AllocationSupport.FatIndexBitSize == 32) { - - // - // DEAL WITH 32 BIT CASE - // - - PULONG PinnedFatEntry32; - - // - // Read in a new page of fat - // - - OffsetIntoVolumeFile = FatReservedBytes( &Vcb->Bpb ) + - FatIndex * sizeof( FAT_ENTRY ); - - FatPrepareWriteVolumeFile( IrpContext, - Vcb, - OffsetIntoVolumeFile, - sizeof(FAT_ENTRY), - &Bcb, - (PVOID *)&PinnedFatEntry32, - RegularOperation, - FALSE ); - // - // Mark the sector dirty in the DirtyFatMcb - // - - Lbo = OffsetIntoVolumeFile & ~(SectorSize - 1); - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize); - - // - // Store the FatEntry to the pinned page. - // - // Preserve the reserved bits in FAT32 entries in the file heap. - // - -#ifdef ALPHA - FatLockFreeClusterBitMap( Vcb ); - ReleaseMutex = TRUE; -#endif // ALPHA - - if (FatIndex != FAT_DIRTY_BIT_INDEX) { - - *PinnedFatEntry32 = ((*PinnedFatEntry32 & ~FAT32_ENTRY_MASK) | FatEntry); - - } else { - - *PinnedFatEntry32 = FatEntry; - } - -#ifdef ALPHA - FatUnlockFreeClusterBitMap( Vcb ); - ReleaseMutex = FALSE; -#endif // ALPHA - - } else { - - // - // DEAL WITH 16 BIT CASE - // - - PUSHORT PinnedFatEntry; - - // - // Read in a new page of fat - // - - OffsetIntoVolumeFile = FatReservedBytes( &Vcb->Bpb ) + - FatIndex * sizeof(USHORT); - - FatPrepareWriteVolumeFile( IrpContext, - Vcb, - OffsetIntoVolumeFile, - sizeof(USHORT), - &Bcb, - (PVOID *)&PinnedFatEntry, - RegularOperation, - FALSE ); - // - // Mark the sector dirty in the DirtyFatMcb - // - - Lbo = OffsetIntoVolumeFile & ~(SectorSize - 1); - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize); - - // - // Store the FatEntry to the pinned page. - // - // We need extra synchronization here for broken architectures - // like the ALPHA that don't support atomic 16 bit writes. - // - -#ifdef ALPHA - FatLockFreeClusterBitMap( Vcb ); - ReleaseMutex = TRUE; -#endif // ALPHA - - *PinnedFatEntry = (USHORT)FatEntry; - -#ifdef ALPHA - FatUnlockFreeClusterBitMap( Vcb ); - ReleaseMutex = FALSE; -#endif // ALPHA - } - - } _SEH2_FINALLY { - - DebugUnwind( FatSetFatEntry ); - - // - // Re-enable volume dirtying in case this was a dirty bit operation. - // - - ClearFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_DISABLE_DIRTY ); - - // - // Make this operation asynchronous again if needed. - // - - if (!WasWait) { - - ClearFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT ); - } - - // - // If we still somehow have the Mutex, release it. - // - - if (ReleaseMutex) { - - ASSERT( _SEH2_AbnormalTermination() ); - - FatUnlockFreeClusterBitMap( Vcb ); - } - - // - // Unpin the Bcb. For cleaning operations, we make this write-through. - // - - if (CleaningOperation && Bcb) { - - IO_STATUS_BLOCK IgnoreStatus; - - CcRepinBcb( Bcb ); - CcUnpinData( Bcb ); - DbgDoit( IrpContext->PinCount -= 1 ); - CcUnpinRepinnedBcb( Bcb, TRUE, &IgnoreStatus ); - - } else { - - FatUnpinBcb(IrpContext, Bcb); - } - - DebugTrace(-1, Dbg, "FatSetFatEntry -> (VOID)\n", 0); - } _SEH2_END; - - return; -} - - -// -// Internal support routine -// - -VOID -FatSetFatRun ( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG StartingFatIndex, - IN ULONG ClusterCount, - IN BOOLEAN ChainTogether - ) - -/*++ - -Routine Description: - - This routine sets a continuous run of clusters in the fat. If ChainTogether - is TRUE, then the clusters are linked together as in normal Fat fasion, - with the last cluster receiving FAT_CLUSTER_LAST. If ChainTogether is - FALSE, all the entries are set to FAT_CLUSTER_AVAILABLE, effectively - freeing all the clusters in the run. - -Arguments: - - Vcb - Supplies the Vcb to examine, yields 12/16 bit info, etc. - - StartingFatIndex - Supplies the destination fat index. - - ClusterCount - Supplies the number of contiguous clusters to work on. - - ChainTogether - Tells us whether to fill the entries with links, or - FAT_CLUSTER_AVAILABLE - - -Return Value: - - VOID - ---*/ - -{ -#define MAXCOUNTCLUS 0x10000 -#define COUNTSAVEDBCBS ((MAXCOUNTCLUS * sizeof(FAT_ENTRY) / PAGE_SIZE) + 2) - PBCB SavedBcbs[COUNTSAVEDBCBS][2]; - - ULONG SectorSize; - ULONG Cluster; - - LBO StartSectorLbo; - LBO FinalSectorLbo; - LBO Lbo; - - PVOID PinnedFat; - -#ifndef __REACTOS__ - ULONG StartingPage; -#endif - - BOOLEAN ReleaseMutex = FALSE; - - ULONG SavedStartingFatIndex = StartingFatIndex; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "FatSetFatRun\n", 0); - DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); - DebugTrace( 0, Dbg, " StartingFatIndex = %8x\n", StartingFatIndex); - DebugTrace( 0, Dbg, " ClusterCount = %8lx\n", ClusterCount); - DebugTrace( 0, Dbg, " ChainTogether = %s\n", ChainTogether ? "TRUE":"FALSE"); - - // - // Make sure they gave us a valid fat run. - // - - FatVerifyIndexIsValid(IrpContext, Vcb, StartingFatIndex); - FatVerifyIndexIsValid(IrpContext, Vcb, StartingFatIndex + ClusterCount - 1); - - // - // Check special case - // - - if (ClusterCount == 0) { - - DebugTrace(-1, Dbg, "FatSetFatRun -> (VOID)\n", 0); - return; - } - - // - // Set Sector Size - // - - SectorSize = 1 << Vcb->AllocationSupport.LogOfBytesPerSector; - - // - // Case on 12 or 16 bit fats. - // - // In the 12 bit case (mostly floppies) we always have the whole fat - // (max 6k bytes) pinned during allocation operations. This is possibly - // a wee bit slower, but saves headaches over fat entries with 8 bits - // on one page, and 4 bits on the next. - // - // In the 16 bit case we only read one page at a time, as needed. - // - - // - // DEAL WITH 12 BIT CASE - // - - _SEH2_TRY { - - if (Vcb->AllocationSupport.FatIndexBitSize == 12) { - -#ifndef __REACTOS__ - StartingPage = 0; -#endif - - // - // We read in the entire fat. Note that using prepare write marks - // the bcb pre-dirty, so we don't have to do it explicitly. - // - - RtlZeroMemory( &SavedBcbs[0], 2 * sizeof(PBCB) * 2); - - FatPrepareWriteVolumeFile( IrpContext, - Vcb, - FatReservedBytes( &Vcb->Bpb ), - FatBytesPerFat( &Vcb->Bpb ), - &SavedBcbs[0][0], - &PinnedFat, - TRUE, - FALSE ); - - // - // Mark the affected sectors dirty. Note that FinalSectorLbo is - // the Lbo of the END of the entry (Thus * 3 + 2). This makes sure - // we catch the case of a dirty fat entry straddling a sector boundry. - // - // Note that if the first AddMcbEntry succeeds, all following ones - // will simply coalese, and thus also succeed. - // - - StartSectorLbo = (FatReservedBytes( &Vcb->Bpb ) + StartingFatIndex * 3 / 2) - & ~(SectorSize - 1); - - FinalSectorLbo = (FatReservedBytes( &Vcb->Bpb ) + ((StartingFatIndex + - ClusterCount) * 3 + 2) / 2) & ~(SectorSize - 1); - - for (Lbo = StartSectorLbo; Lbo <= FinalSectorLbo; Lbo += SectorSize) { - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize ); - } - - // - // Store the entries into the fat; we need a little - // synchonization here and can't use a spinlock since the bytes - // might not be resident. - // - - FatLockFreeClusterBitMap( Vcb ); - ReleaseMutex = TRUE; - - for (Cluster = StartingFatIndex; - Cluster < StartingFatIndex + ClusterCount - 1; - Cluster++) { - - FatSet12BitEntry( PinnedFat, - Cluster, - ChainTogether ? Cluster + 1 : FAT_CLUSTER_AVAILABLE ); - } - - // - // Save the last entry - // - - FatSet12BitEntry( PinnedFat, - Cluster, - ChainTogether ? - FAT_CLUSTER_LAST & 0xfff : FAT_CLUSTER_AVAILABLE ); - - FatUnlockFreeClusterBitMap( Vcb ); - ReleaseMutex = FALSE; - - } else if (Vcb->AllocationSupport.FatIndexBitSize == 32) { - - // - // DEAL WITH 32 BIT CASE - // - - for (;;) { - - VBO StartOffsetInVolume; - VBO FinalOffsetInVolume; - - ULONG Page; - ULONG FinalCluster; - PULONG FatEntry; - ULONG ClusterCountThisRun; - - StartOffsetInVolume = FatReservedBytes(&Vcb->Bpb) + - StartingFatIndex * sizeof(FAT_ENTRY); - - if (ClusterCount > MAXCOUNTCLUS) { - ClusterCountThisRun = MAXCOUNTCLUS; - } else { - ClusterCountThisRun = ClusterCount; - } - - FinalOffsetInVolume = StartOffsetInVolume + - (ClusterCountThisRun - 1) * sizeof(FAT_ENTRY); - -#ifndef __REACTOS__ - StartingPage = StartOffsetInVolume / PAGE_SIZE; -#endif - - { - ULONG NumberOfPages; - ULONG Offset; - - NumberOfPages = (FinalOffsetInVolume / PAGE_SIZE) - - (StartOffsetInVolume / PAGE_SIZE) + 1; - - RtlZeroMemory( &SavedBcbs[0][0], (NumberOfPages + 1) * sizeof(PBCB) * 2 ); - - for ( Page = 0, Offset = StartOffsetInVolume & ~(PAGE_SIZE - 1); - Page < NumberOfPages; - Page++, Offset += PAGE_SIZE ) { - - FatPrepareWriteVolumeFile( IrpContext, - Vcb, - Offset, - PAGE_SIZE, - &SavedBcbs[Page][0], - (PVOID *)&SavedBcbs[Page][1], - TRUE, - FALSE ); - - if (Page == 0) { - - FatEntry = (PULONG)((PUCHAR)SavedBcbs[0][1] + - (StartOffsetInVolume % PAGE_SIZE)); - } - } - } - - // - // Mark the run dirty - // - - StartSectorLbo = StartOffsetInVolume & ~(SectorSize - 1); - FinalSectorLbo = FinalOffsetInVolume & ~(SectorSize - 1); - - for (Lbo = StartSectorLbo; Lbo <= FinalSectorLbo; Lbo += SectorSize) { - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO)Lbo, Lbo, SectorSize ); - } - - // - // Store the entries - // - // We need extra synchronization here for broken architectures - // like the ALPHA that don't support atomic 16 bit writes. - // - -#ifdef ALPHA - FatLockFreeClusterBitMap( Vcb ); - ReleaseMutex = TRUE; -#endif // ALPHA - - FinalCluster = StartingFatIndex + ClusterCountThisRun - 1; - Page = 0; - - for (Cluster = StartingFatIndex; - Cluster <= FinalCluster; - Cluster++, FatEntry++) { - - // - // If we just crossed a page boundry (as opposed to starting - // on one), update our idea of FatEntry. - - if ( (((ULONG_PTR)FatEntry & (PAGE_SIZE-1)) == 0) && - (Cluster != StartingFatIndex) ) { - - Page += 1; - FatEntry = (PULONG)SavedBcbs[Page][1]; - } - - *FatEntry = ChainTogether ? (FAT_ENTRY)(Cluster + 1) : - FAT_CLUSTER_AVAILABLE; - } - - // - // Fix up the last entry if we were chaining together - // - - if ((ClusterCount <= MAXCOUNTCLUS) && - ChainTogether ) { - - *(FatEntry-1) = FAT_CLUSTER_LAST; - } - -#ifdef ALPHA - FatUnlockFreeClusterBitMap( Vcb ); - ReleaseMutex = FALSE; -#endif // ALPHA - - { - ULONG i = 0; - // - // Unpin the Bcbs - // - - while ( SavedBcbs[i][0] != NULL ) { - - FatUnpinBcb( IrpContext, SavedBcbs[i][0] ); - SavedBcbs[i][0] = NULL; - - i += 1; - } - } - - if (ClusterCount <= MAXCOUNTCLUS) { - - break; - - } else { - - StartingFatIndex += MAXCOUNTCLUS; - ClusterCount -= MAXCOUNTCLUS; - } - } - - } else { - - // - // DEAL WITH 16 BIT CASE - // - - VBO StartOffsetInVolume; - VBO FinalOffsetInVolume; - - ULONG Page; - ULONG FinalCluster; - PUSHORT FatEntry; - - StartOffsetInVolume = FatReservedBytes(&Vcb->Bpb) + - StartingFatIndex * sizeof(USHORT); - - FinalOffsetInVolume = StartOffsetInVolume + - (ClusterCount - 1) * sizeof(USHORT); - -#ifndef __REACTOS__ - StartingPage = StartOffsetInVolume / PAGE_SIZE; -#endif - - // - // Read in one page of fat at a time. We cannot read in the - // all of the fat we need because of cache manager limitations. - // - // SavedBcb was initialized to be able to hold the largest - // possible number of pages in a fat plus and extra one to - // accomadate the boot sector, plus one more to make sure there - // is enough room for the RtlZeroMemory below that needs the mark - // the first Bcb after all the ones we will use as an end marker. - // - - { - ULONG NumberOfPages; - ULONG Offset; - - NumberOfPages = (FinalOffsetInVolume / PAGE_SIZE) - - (StartOffsetInVolume / PAGE_SIZE) + 1; - - RtlZeroMemory( &SavedBcbs[0][0], (NumberOfPages + 1) * sizeof(PBCB) * 2 ); - - for ( Page = 0, Offset = StartOffsetInVolume & ~(PAGE_SIZE - 1); - Page < NumberOfPages; - Page++, Offset += PAGE_SIZE ) { - - FatPrepareWriteVolumeFile( IrpContext, - Vcb, - Offset, - PAGE_SIZE, - &SavedBcbs[Page][0], - (PVOID *)&SavedBcbs[Page][1], - TRUE, - FALSE ); - - if (Page == 0) { - - FatEntry = (PUSHORT)((PUCHAR)SavedBcbs[0][1] + - (StartOffsetInVolume % PAGE_SIZE)); - } - } - } - - // - // Mark the run dirty - // - - StartSectorLbo = StartOffsetInVolume & ~(SectorSize - 1); - FinalSectorLbo = FinalOffsetInVolume & ~(SectorSize - 1); - - for (Lbo = StartSectorLbo; Lbo <= FinalSectorLbo; Lbo += SectorSize) { - - FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize ); - } - - // - // Store the entries - // - // We need extra synchronization here for broken architectures - // like the ALPHA that don't support atomic 16 bit writes. - // - -#ifdef ALPHA - FatLockFreeClusterBitMap( Vcb ); - ReleaseMutex = TRUE; -#endif // ALPHA - - FinalCluster = StartingFatIndex + ClusterCount - 1; - Page = 0; - - for (Cluster = StartingFatIndex; - Cluster <= FinalCluster; - Cluster++, FatEntry++) { - - // - // If we just crossed a page boundry (as opposed to starting - // on one), update our idea of FatEntry. - - if ( (((ULONG_PTR)FatEntry & (PAGE_SIZE-1)) == 0) && - (Cluster != StartingFatIndex) ) { - - Page += 1; - FatEntry = (PUSHORT)SavedBcbs[Page][1]; - } - - *FatEntry = (USHORT) (ChainTogether ? (FAT_ENTRY)(Cluster + 1) : - FAT_CLUSTER_AVAILABLE); - } - - // - // Fix up the last entry if we were chaining together - // - - if ( ChainTogether ) { - - *(FatEntry-1) = (USHORT)FAT_CLUSTER_LAST; - } -#ifdef ALPHA - FatUnlockFreeClusterBitMap( Vcb ); - ReleaseMutex = FALSE; -#endif // ALPHA - } - - } _SEH2_FINALLY { - - ULONG i = 0; - - DebugUnwind( FatSetFatRun ); - - // - // If we still somehow have the Mutex, release it. - // - - if (ReleaseMutex) { - - ASSERT( _SEH2_AbnormalTermination() ); - - FatUnlockFreeClusterBitMap( Vcb ); - } - - // - // Unpin the Bcbs - // - - while ( SavedBcbs[i][0] != NULL ) { - - FatUnpinBcb( IrpContext, SavedBcbs[i][0] ); - - i += 1; - } - - // - // At this point nothing in this finally clause should have raised. - // So, now comes the unsafe (sigh) stuff. - // - - if ( _SEH2_AbnormalTermination() && - (Vcb->AllocationSupport.FatIndexBitSize == 32) ) { - - // - // Fat32 unwind - // - // This case is more complex because the FAT12 and FAT16 cases - // pin all the needed FAT pages (128K max), after which it - // can't fail, before changing any FAT entries. In the Fat32 - // case, it may not be practical to pin all the needed FAT - // pages, because that could span many megabytes. So Fat32 - // attacks in chunks, and if a failure occurs once the first - // chunk has been updated, we have to back out the updates. - // - // The unwind consists of walking back over each FAT entry we - // have changed, setting it back to the previous value. Note - // that the previous value with either be FAT_CLUSTER_AVAILABLE - // (if ChainTogether==TRUE) or a simple link to the successor - // (if ChainTogether==FALSE). - // - // We concede that any one of these calls could fail too; our - // objective is to make this case no more likely than the case - // for a file consisting of multiple disjoint runs. - // - - while ( StartingFatIndex > SavedStartingFatIndex ) { - - StartingFatIndex--; - - FatSetFatEntry( IrpContext, Vcb, StartingFatIndex, - ChainTogether ? - StartingFatIndex + 1 : FAT_CLUSTER_AVAILABLE ); - } - } - - DebugTrace(-1, Dbg, "FatSetFatRun -> (VOID)\n", 0); - } _SEH2_END; - - return; -} - - -// -// Internal support routine -// - -UCHAR -FatLogOf ( - IN ULONG Value - ) - -/*++ - -Routine Description: - - This routine just computes the base 2 log of an integer. It is only used - on objects that are know to be powers of two. - -Arguments: - - Value - The value to take the base 2 log of. - -Return Value: - - UCHAR - The base 2 log of Value. - ---*/ - -{ - UCHAR Log = 0; - - PAGED_CODE(); - - DebugTrace(+1, Dbg, "LogOf\n", 0); - DebugTrace( 0, Dbg, " Value = %8lx\n", Value); - - // - // Knock bits off until we we get a one at position 0 - // - - while ( (Value & 0xfffffffe) != 0 ) { - - Log++; - Value >>= 1; - } - - // - // If there was more than one bit set, the file system messed up, - // Bug Check. - // - - if (Value != 0x1) { - - DebugTrace( 0, Dbg, "Received non power of 2.\n", 0); - - FatBugCheck( Value, Log, 0 ); - } - - DebugTrace(-1, Dbg, "LogOf -> %8lx\n", Log); - - return Log; -} - - -VOID -FatExamineFatEntries( - IN PIRP_CONTEXT IrpContext, - IN PVCB Vcb, - IN ULONG StartIndex OPTIONAL, - IN ULONG EndIndex OPTIONAL, - IN BOOLEAN SetupWindows, - IN PFAT_WINDOW SwitchToWindow OPTIONAL, - IN PULONG BitMapBuffer OPTIONAL - ) -/*++ - -Routine Description: - - This routine handles scanning a segment of the FAT into in-memory structures. - - There are three fundamental cases, with variations depending on the FAT type: - - 1) During volume setup, FatSetupAllocations - ... 63110 lines suppressed ...

6 years, 9 months

[reactos] 01/01: [FASTFAT_NEW] Fix build with FASTFATDBG set

by Pierre Schweitzer

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=f15769d95863bb17bd121… commit f15769d95863bb17bd12188ff40fd8e04e4b3820 Author: Pierre Schweitzer <pierre(a)reactos.org> AuthorDate: Thu Nov 23 14:18:15 2017 +0100 [FASTFAT_NEW] Fix build with FASTFATDBG set --- drivers/filesystems/fastfat_new/dirsup.c | 4 ++++ drivers/filesystems/fastfat_new/fatdata.h | 2 +- drivers/filesystems/fastfat_new/pnp.c | 4 ++++ 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/filesystems/fastfat_new/dirsup.c b/drivers/filesystems/fastfat_new/dirsup.c index 71689e8d90..8ca1f6ad53 100644 --- a/drivers/filesystems/fastfat_new/dirsup.c +++ b/drivers/filesystems/fastfat_new/dirsup.c @@ -1991,7 +1991,11 @@ Return Value: ULONG ByteOffset; PDIRENT Dirent; +#ifndef __REACTOS__ BOOLEAN IsDirectoryEmpty; +#else + BOOLEAN IsDirectoryEmpty = FALSE; +#endif NTSTATUS Status; diff --git a/drivers/filesystems/fastfat_new/fatdata.h b/drivers/filesystems/fastfat_new/fatdata.h index 0d0493f4e7..4d8aa2eeeb 100644 --- a/drivers/filesystems/fastfat_new/fatdata.h +++ b/drivers/filesystems/fastfat_new/fatdata.h @@ -243,7 +243,7 @@ extern LONG FatDebugTraceIndent; } #define DebugUnwind(X) { \ - if (AbnormalTermination()) { \ + if (_SEH2_AbnormalTermination()) { \ DebugTrace(0, DEBUG_TRACE_UNWIND, #X ", Abnormal termination.\n", 0); \ } \ } diff --git a/drivers/filesystems/fastfat_new/pnp.c b/drivers/filesystems/fastfat_new/pnp.c index 9604a961e8..26a9ed533f 100644 --- a/drivers/filesystems/fastfat_new/pnp.c +++ b/drivers/filesystems/fastfat_new/pnp.c @@ -22,6 +22,10 @@ Abstract: #define BugCheckFileId (FAT_BUG_CHECK_PNP) +#ifdef __REACTOS__ +#define Dbg (DEBUG_TRACE_PNP) +#endif + NTSTATUS FatPnpQueryRemove ( PIRP_CONTEXT IrpContext,

6 years, 9 months

[reactos] 01/01: [CLANG-CL] Initial commit that allows us to compile ReactOS with clang-cl.

by Amine Khaldi

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=09c06a2f457ec9557bcdf… commit 09c06a2f457ec9557bcdf1809ecb4b50b2fb654a Author: Amine Khaldi <amine.khaldi(a)reactos.org> AuthorDate: Fri Oct 27 22:18:01 2017 +0100 [CLANG-CL] Initial commit that allows us to compile ReactOS with clang-cl. --- CMakeLists.txt | 10 ++++++++-- base/setup/usetup/CMakeLists.txt | 5 ----- boot/freeldr/freeldr/CMakeLists.txt | 5 +++++ configure.cmd | 7 +++++-- dll/win32/CMakeLists.txt | 4 +++- dll/win32/browseui/CMakeLists.txt | 5 +---- dll/win32/browseui/shellbars/CMakeLists.txt | 4 +--- dll/win32/riched20/CMakeLists.txt | 5 ----- dll/win32/winmm/CMakeLists.txt | 2 +- drivers/filesystems/ext2/CMakeLists.txt | 15 +++++++++++---- ntoskrnl/ntos.cmake | 9 --------- sdk/cmake/Platform/Windows-MSVC.cmake | 9 +++++++-- sdk/cmake/config.cmake | 2 +- sdk/cmake/host-tools.cmake | 7 ++++++- sdk/cmake/msvc.cmake | 30 +++++++++++++++++++++++++---- sdk/lib/crt/crt.cmake | 7 ++++--- subsystems/mvdm/asm16.cmake | 3 ++- toolchain-msvc.cmake | 12 ++++++++++-- 18 files changed, 91 insertions(+), 50 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index f4c38c85f8..bcf4c18d30 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -97,7 +97,10 @@ if(NOT CMAKE_CROSSCOMPILING) if(MSVC_VERSION GREATER 1699) add_definitions(/D_ALLOW_KEYWORD_MACROS) endif() - add_definitions(/Dinline=__inline) + if(NOT USE_CLANG_CL) + # FIXME: Inspect + add_definitions(/Dinline=__inline) + endif() endif() include_directories(sdk/include/host) @@ -182,7 +185,10 @@ else() # Arch Options if(ARCH STREQUAL "i386") - add_definitions(-D_M_IX86 -D_X86_ -D__i386__ -Di386) + if(NOT USE_CLANG_CL) + add_definitions(-D_M_IX86) + endif() + add_definitions(-D_X86_ -D__i386__ -Di386) elseif(ARCH STREQUAL "amd64") add_definitions(-D_M_AMD64 -D_AMD64_ -D__x86_64__ -D_WIN64) elseif(ARCH STREQUAL "arm") diff --git a/base/setup/usetup/CMakeLists.txt b/base/setup/usetup/CMakeLists.txt index d78f9d7bf7..d90103f16a 100644 --- a/base/setup/usetup/CMakeLists.txt +++ b/base/setup/usetup/CMakeLists.txt @@ -34,11 +34,6 @@ list(APPEND SOURCE settings.c usetup.h) -if(CMAKE_C_COMPILER_ID STREQUAL "Clang") - #FIXME: Investigate Clang "illegal character encoding in string literal" warning - set_property(SOURCE mui.c APPEND_STRING PROPERTY COMPILE_FLAGS " -Wno-invalid-source-encoding") -endif() - add_executable(usetup ${SOURCE} usetup.rc) target_link_libraries(usetup zlib inflib ext2lib vfatlib) set_module_type(usetup nativecui) diff --git a/boot/freeldr/freeldr/CMakeLists.txt b/boot/freeldr/freeldr/CMakeLists.txt index c4ca5b4a33..df7cc0a53b 100644 --- a/boot/freeldr/freeldr/CMakeLists.txt +++ b/boot/freeldr/freeldr/CMakeLists.txt @@ -198,6 +198,11 @@ add_library(freeldr_common ${FREELDR_BOOTLIB_COMMON_SOURCE} ${FREELDR_ARC_COMMON add_pch(freeldr_common include/freeldr.h FREELDR_COMMON_SOURCE) add_dependencies(freeldr_common bugcodes asm xdk) +if(USE_CLANG_CL) + # We need to reduce the binary size + set_property(SOURCE ${FREELDR_BOOTLIB_COMMON_SOURCE} ${FREELDR_ARC_COMMON_SOURCE} APPEND_STRING PROPERTY COMPILE_FLAGS " /Os") +endif() + if(ARCH STREQUAL "i386" AND NOT MSVC) list(APPEND FREELDR_BASE_SOURCE arch/i386/multiboot.S) target_link_libraries(freeldr_common mini_hal) diff --git a/configure.cmd b/configure.cmd index 6b0c5dfbb9..922a8f1d94 100755 --- a/configure.cmd +++ b/configure.cmd @@ -83,6 +83,7 @@ if not defined ARCH ( ) set NEW_STYLE_BUILD=1 +set USE_CLANG_CL=0 REM Parse command line parameters :repeat @@ -95,8 +96,6 @@ REM Parse command line parameters set CMAKE_GENERATOR="Eclipse CDT4 - MinGW Makefiles" ) else if /I "%1" == "Makefiles" ( set CMAKE_GENERATOR="MinGW Makefiles" - ) else if /I "%1" == "clang" ( - set MINGW_TOOCHAIN_FILE=toolchain-clang.cmake ) else ( goto continue ) @@ -107,6 +106,8 @@ REM Parse command line parameters set CMAKE_GENERATOR="Eclipse CDT4 - NMake Makefiles" ) else if /I "%1" == "Makefiles" ( set CMAKE_GENERATOR="NMake Makefiles" + ) else if /I "%1" == "clang" ( + set USE_CLANG_CL=1 ) else if /I "%1" == "VSSolution" ( set VS_SOLUTION=1 REM explicitly set VS version for project generator @@ -239,6 +240,8 @@ if "%NEW_STYLE_BUILD%"=="0" ( if "%BUILD_ENVIRONMENT%" == "MinGW" ( cmake -G %CMAKE_GENERATOR% -DENABLE_CCACHE:BOOL=0 -DCMAKE_TOOLCHAIN_FILE:FILEPATH=%MINGW_TOOCHAIN_FILE% -DARCH:STRING=%ARCH% %BUILD_TOOLS_FLAG% %* "%REACTOS_SOURCE_DIR%" +) else if %USE_CLANG_CL% == 1 ( + cmake -G %CMAKE_GENERATOR% -DCMAKE_TOOLCHAIN_FILE:FILEPATH=toolchain-msvc.cmake -DARCH:STRING=%ARCH% %BUILD_TOOLS_FLAG% -DUSE_CLANG_CL:BOOL=1 -DRUNTIME_CHECKS:BOOL=%VS_RUNTIME_CHECKS% %* "%REACTOS_SOURCE_DIR%" ) else ( cmake -G %CMAKE_GENERATOR% -DCMAKE_TOOLCHAIN_FILE:FILEPATH=toolchain-msvc.cmake -DARCH:STRING=%ARCH% %BUILD_TOOLS_FLAG% -DRUNTIME_CHECKS:BOOL=%VS_RUNTIME_CHECKS% %* "%REACTOS_SOURCE_DIR%" ) diff --git a/dll/win32/CMakeLists.txt b/dll/win32/CMakeLists.txt index c0a16ad1d8..e4639acf65 100644 --- a/dll/win32/CMakeLists.txt +++ b/dll/win32/CMakeLists.txt @@ -42,7 +42,9 @@ add_subdirectory(faultrep) add_subdirectory(fltlib) add_subdirectory(fmifs) add_subdirectory(fontsub) -add_subdirectory(framedyn) +if(NOT USE_CLANG_CL) + add_subdirectory(framedyn) +endif() add_subdirectory(fusion) add_subdirectory(gdiplus) add_subdirectory(getuname) diff --git a/dll/win32/browseui/CMakeLists.txt b/dll/win32/browseui/CMakeLists.txt index 30ab6a2969..45afa685c4 100644 --- a/dll/win32/browseui/CMakeLists.txt +++ b/dll/win32/browseui/CMakeLists.txt @@ -45,10 +45,7 @@ add_pch(browseui precomp.h SOURCE) add_cd_file(TARGET browseui DESTINATION reactos/system32 FOR all) if(NOT MSVC) - if(NOT CMAKE_C_COMPILER_ID STREQUAL "Clang") - add_target_compile_flags(browseui "-Wno-unused-but-set-variable") - endif() - + add_target_compile_flags(browseui "-Wno-unused-but-set-variable") # Binutils linker bug if(LTCG) add_target_link_flags(browseui "-Wl,--allow-multiple-definition") diff --git a/dll/win32/browseui/shellbars/CMakeLists.txt b/dll/win32/browseui/shellbars/CMakeLists.txt index 28c55176b5..f42c74f722 100644 --- a/dll/win32/browseui/shellbars/CMakeLists.txt +++ b/dll/win32/browseui/shellbars/CMakeLists.txt @@ -20,7 +20,5 @@ add_dependencies(shellbars xdk) target_link_libraries(shellbars atlnew) if(NOT MSVC) - if(NOT CMAKE_C_COMPILER_ID STREQUAL "Clang") - add_target_compile_flags(shellbars "-Wno-unused-but-set-variable") - endif() + add_target_compile_flags(shellbars "-Wno-unused-but-set-variable") endif() diff --git a/dll/win32/riched20/CMakeLists.txt b/dll/win32/riched20/CMakeLists.txt index b0cf90e428..002fc5ad9b 100644 --- a/dll/win32/riched20/CMakeLists.txt +++ b/dll/win32/riched20/CMakeLists.txt @@ -33,11 +33,6 @@ else() list(APPEND SOURCE txthost.c txtsrv.c) endif() -if(CMAKE_C_COMPILER_ID STREQUAL "Clang") - #FIXME: http://llvm.org/bugs/show_bug.cgi?id=19027 - set_property(SOURCE txthost.c txtsrv.c APPEND_STRING PROPERTY COMPILE_FLAGS " -no-integrated-as") -endif() - list(APPEND ADDITIONAL_SOURCE version.rc ${CMAKE_CURRENT_BINARY_DIR}/riched20.def) diff --git a/dll/win32/winmm/CMakeLists.txt b/dll/win32/winmm/CMakeLists.txt index c82fda5822..eb3cbecbbe 100644 --- a/dll/win32/winmm/CMakeLists.txt +++ b/dll/win32/winmm/CMakeLists.txt @@ -27,7 +27,7 @@ add_importlibs(winmm advapi32 user32 msvcrt kernel32 ntdll) add_pch(winmm winemm.h SOURCE) add_cd_file(TARGET winmm DESTINATION reactos/system32 FOR all) -if((NOT MSVC) AND (NOT CMAKE_C_COMPILER_ID STREQUAL "Clang")) +if(NOT MSVC) add_target_compile_flags(winmm "-Wno-unused-but-set-variable") endif() diff --git a/drivers/filesystems/ext2/CMakeLists.txt b/drivers/filesystems/ext2/CMakeLists.txt index abc1c2489d..66278740f2 100644 --- a/drivers/filesystems/ext2/CMakeLists.txt +++ b/drivers/filesystems/ext2/CMakeLists.txt @@ -88,11 +88,13 @@ list(APPEND SOURCE add_library(ext2fs SHARED ${SOURCE} ext2fs.rc) +if(USE_CLANG_CL) + set_property(SOURCE src/create.c src/fileinfo.c src/memory.c src/read.c APPEND_STRING PROPERTY COMPILE_FLAGS " /fallback") +endif() + if(NOT MSVC) add_target_compile_flags(ext2fs "-Wno-pointer-sign -Wno-unused-function") - if(NOT CMAKE_C_COMPILER_ID STREQUAL "Clang") - add_target_compile_flags(ext2fs "-Wno-unused-but-set-variable -Wno-unused-variable -Wno-missing-braces") - endif() + add_target_compile_flags(ext2fs "-Wno-unused-but-set-variable -Wno-unused-variable -Wno-missing-braces") else() #disable warnings: "unreferenced local variable", "initialized, but not used variable", "benign include" replace_compile_flags("/we\"4189\"" " ") @@ -103,5 +105,10 @@ target_link_libraries(ext2fs memcmp ${PSEH_LIB}) add_definitions(-D__KERNEL__) set_module_type(ext2fs kernelmodedriver) add_importlibs(ext2fs ntoskrnl hal) -add_pch(ext2fs inc/ext2fs.h SOURCE) + +if(NOT USE_CLANG_CL) + # The fallback we have above prevents cl and clang-cl from using the same PCH + add_pch(ext2fs inc/ext2fs.h SOURCE) +endif() + add_cd_file(TARGET ext2fs DESTINATION reactos/system32/drivers NO_CAB FOR all) diff --git a/ntoskrnl/ntos.cmake b/ntoskrnl/ntos.cmake index 9affb1e68a..ceb287656a 100644 --- a/ntoskrnl/ntos.cmake +++ b/ntoskrnl/ntos.cmake @@ -426,12 +426,3 @@ else() # _WINKD_ endif() endif() - -if(CMAKE_C_COMPILER_ID STREQUAL "Clang") - #FIXME: http://llvm.org/bugs/show_bug.cgi?id=19027 - set_property(SOURCE - ${REACTOS_SOURCE_DIR}/ntoskrnl/ke/i386/cpu.c - ${REACTOS_SOURCE_DIR}/ntoskrnl/ke/i386/kiinit.c - ${REACTOS_SOURCE_DIR}/ntoskrnl/ke/i386/traphdlr.c - APPEND_STRING PROPERTY COMPILE_FLAGS " -no-integrated-as") -endif() diff --git a/sdk/cmake/Platform/Windows-MSVC.cmake b/sdk/cmake/Platform/Windows-MSVC.cmake index dc09c7479f..5c3912cfea 100644 --- a/sdk/cmake/Platform/Windows-MSVC.cmake +++ b/sdk/cmake/Platform/Windows-MSVC.cmake @@ -193,8 +193,13 @@ else() endif() if (CMAKE_COMPILER_SUPPORTS_PDBTYPE) - set (CMAKE_EXE_LINKER_FLAGS_DEBUG_INIT "/debug /pdbtype:sept") - set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO_INIT "/debug /pdbtype:sept ${MSVC_INCREMENTAL_YES_FLAG}") + if(NOT USE_CLANG_CL) + set (CMAKE_EXE_LINKER_FLAGS_DEBUG_INIT "/debug /pdbtype:sept") + set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO_INIT "/debug /pdbtype:sept ${MSVC_INCREMENTAL_YES_FLAG}") + else() + set(CMAKE_EXE_LINKER_FLAGS_DEBUG_INIT "/debug") + set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO_INIT "/debug") + endif() else () set (CMAKE_EXE_LINKER_FLAGS_DEBUG_INIT "/debug") set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO_INIT "/debug ${MSVC_INCREMENTAL_YES_FLAG}") diff --git a/sdk/cmake/config.cmake b/sdk/cmake/config.cmake index 1374cab3ba..3fc9ce212e 100644 --- a/sdk/cmake/config.cmake +++ b/sdk/cmake/config.cmake @@ -36,7 +36,7 @@ else() "Whether to compile for debugging.") endif() -if(MSVC) +if(MSVC AND (NOT USE_CLANG_CL)) set(KDBG FALSE CACHE BOOL "Whether to compile in the integrated kernel debugger.") if(CMAKE_BUILD_TYPE STREQUAL "Release") diff --git a/sdk/cmake/host-tools.cmake b/sdk/cmake/host-tools.cmake index 40c4eb1735..100df6fd52 100644 --- a/sdk/cmake/host-tools.cmake +++ b/sdk/cmake/host-tools.cmake @@ -23,6 +23,11 @@ foreach(_host_tool ${host_tools_list}) add_dependencies(native-${_host_tool} host-tools) endforeach() +if(USE_CLANG_CL) + # FIXME: Fix host tools build with clang + #set(USE_CLANG_CL_ARG "-DCMAKE_C_COMPILER=clang-cl;-DCMAKE_CXX_COMPILER=clang-cl") +endif() + include(ExternalProject) ExternalProject_Add(host-tools @@ -32,6 +37,6 @@ ExternalProject_Add(host-tools BUILD_ALWAYS 1 PREFIX host-tools EXCLUDE_FROM_ALL 1 - CMAKE_ARGS "-DNEW_STYLE_BUILD=1;-DARCH:STRING=${ARCH}" + CMAKE_ARGS "-DNEW_STYLE_BUILD=1;-DARCH:STRING=${ARCH};${USE_CLANG_CL_ARG}" INSTALL_COMMAND "" BUILD_BYPRODUCTS ${tools_binaries}) diff --git a/sdk/cmake/msvc.cmake b/sdk/cmake/msvc.cmake index 4705b3cae9..19790ed91c 100644 --- a/sdk/cmake/msvc.cmake +++ b/sdk/cmake/msvc.cmake @@ -29,7 +29,15 @@ endif() add_definitions(/Dinline=__inline /D__STDC__=1) -add_compile_flags("/X /GR- /EHs-c- /GS- /Zl /W3") +if(NOT USE_CLANG_CL) + add_compile_flags("/X /Zl") +endif() + +add_compile_flags("/GR- /EHs-c- /GS- /W3") + +if(USE_CLANG_CL) + set(CMAKE_CL_SHOWINCLUDES_PREFIX "Note: including file: ") +endif() # HACK: for VS 11+ we need to explicitly disable SSE, which is off by # default for older compilers. See CORE-6507 @@ -88,6 +96,11 @@ endif() # - C4115: named type definition in parentheses add_compile_flags("/w14115") +if(USE_CLANG_CL) + add_compile_flags_language("-nostdinc -Wno-multichar -Wno-char-subscripts -Wno-microsoft-enum-forward-reference -Wno-pragma-pack -Wno-microsoft-anon-tag -Wno-unknown-pragmas" "C") + add_compile_flags_language("-nostdinc -Wno-multichar -Wno-char-subscripts -Wno-microsoft-enum-forward-reference -Wno-pragma-pack -Wno-microsoft-anon-tag -Wno-unknown-pragmas" "CXX") +endif() + # Debugging #if(${CMAKE_BUILD_TYPE} STREQUAL "Debug") if(CMAKE_BUILD_TYPE STREQUAL "Debug") @@ -101,7 +114,9 @@ endif() # Hotpatchable images if(ARCH STREQUAL "i386") - add_compile_flags("/hotpatch") + if(NOT USE_CLANG_CL) + add_compile_flags("/hotpatch") + endif() set(_hotpatch_link_flag "/FUNCTIONPADMIN:5") elseif(ARCH STREQUAL "amd64") set(_hotpatch_link_flag "/FUNCTIONPADMIN:6") @@ -135,7 +150,8 @@ if(MSVC_IDE AND (CMAKE_VERSION MATCHES "ReactOS")) add_definitions(/DLANGUAGE_EN_US) else() # Only VS 10+ resource compiler supports /nologo - if(MSVC_VERSION GREATER 1599) + # CMAKE_CXX_SIMULATE_VERSION is a similar check for our clang-cl builds + if((MSVC_VERSION GREATER 1599) OR (CMAKE_CXX_SIMULATE_VERSION VERSION_GREATER 15.99)) set(rc_nologo_flag "/nologo") else() set(rc_nologo_flag) @@ -218,12 +234,18 @@ if(PCH) set(_pch_path_name_flag "/Fp${_gch}") endif() + if(USE_CLANG_CL) + set(_pch_compile_flags "${_cl_lang_flag} /Yc${_pch} /FI${_pch} /Fp${_gch}") + else() + set(_pch_compile_flags "${_cl_lang_flag} /Yc /Fp${_gch}") + endif() + # Build the precompiled header # HEADER_FILE_ONLY FALSE: force compiling the header set_source_files_properties(${_pch} PROPERTIES HEADER_FILE_ONLY FALSE LANGUAGE ${_pch_language} - COMPILE_FLAGS "${_cl_lang_flag} /Yc /Fp${_gch}" + COMPILE_FLAGS ${_pch_compile_flags} OBJECT_OUTPUTS ${_gch}) # Prevent a race condition related to writing to the PDB files between the PCH and the excluded list of source files diff --git a/sdk/lib/crt/crt.cmake b/sdk/lib/crt/crt.cmake index 8de8a67063..66c5b52e1d 100644 --- a/sdk/lib/crt/crt.cmake +++ b/sdk/lib/crt/crt.cmake @@ -581,9 +581,10 @@ endif() set_source_files_properties(${CRT_ASM_SOURCE} PROPERTIES COMPILE_DEFINITIONS "__MINGW_IMPORT=extern;USE_MSVCRT_PREFIX;_MSVCRT_LIB_;_MSVCRT_;_MT;CRTDLL") add_asm_files(crt_asm ${CRT_ASM_SOURCE}) -if(CMAKE_C_COMPILER_ID STREQUAL "Clang") - #FIXME: http://llvm.org/bugs/show_bug.cgi?id=19027 - set_property(SOURCE except/cpp.c APPEND_STRING PROPERTY COMPILE_FLAGS " -no-integrated-as") +if(USE_CLANG_CL) + # clang-cl is missing pragma function support + # https://bugs.llvm.org/show_bug.cgi?id=35116 + set_property(SOURCE stdlib/rot.c APPEND_STRING PROPERTY COMPILE_FLAGS " /fallback") endif() add_library(crt ${CRT_SOURCE} ${crt_asm}) diff --git a/subsystems/mvdm/asm16.cmake b/subsystems/mvdm/asm16.cmake index eb6d05dfcd..c25f676c73 100644 --- a/subsystems/mvdm/asm16.cmake +++ b/subsystems/mvdm/asm16.cmake @@ -107,9 +107,10 @@ function(add_asm16_bin _target _binary_file _base_address) set(_pp_asm16_compile_command ${CMAKE_ASM16_COMPILER} /nologo /Cp /Fo${_object_file} /c /Ta ${_preprocessed_asm_file}) endif() + # FIXME: clang-cl can't compile this so use cl here instead of ${CMAKE_C_COMPILER} in the meantime add_custom_command( OUTPUT ${_preprocessed_asm_file} ${_object_file} - COMMAND ${CMAKE_C_COMPILER} /nologo /X /I${REACTOS_SOURCE_DIR}/sdk/include/asm /I${REACTOS_BINARY_DIR}/sdk/include/asm ${_directory_includes} ${_source_file_defines} ${_directory_defines} /D__ASM__ /D_USE_ML /EP /c ${_concatenated_asm_file} > ${_preprocessed_asm_file} && ${_pp_asm16_compile_command} + COMMAND cl /nologo /X /I${REACTOS_SOURCE_DIR}/sdk/include/asm /I${REACTOS_BINARY_DIR}/sdk/include/asm ${_directory_includes} ${_source_file_defines} ${_directory_defines} /D__ASM__ /D_USE_ML /EP /c ${_concatenated_asm_file} > ${_preprocessed_asm_file} && ${_pp_asm16_compile_command} DEPENDS ${_concatenated_asm_file}) add_custom_command( diff --git a/toolchain-msvc.cmake b/toolchain-msvc.cmake index e0f2b2b8b3..6028e61493 100644 --- a/toolchain-msvc.cmake +++ b/toolchain-msvc.cmake @@ -14,13 +14,21 @@ set(CMAKE_SYSTEM_NAME Windows) set(CMAKE_SYSTEM_PROCESSOR i686) # which compilers to use for C and C++ -set(CMAKE_C_COMPILER cl) +if(USE_CLANG_CL) + set(CMAKE_C_COMPILER clang-cl) +else() + set(CMAKE_C_COMPILER cl) +endif() if(ARCH STREQUAL "arm") include(CMakeForceCompiler) CMAKE_FORCE_CXX_COMPILER(cl MSVC) else() -set(CMAKE_CXX_COMPILER cl) + if(USE_CLANG_CL) + set(CMAKE_CXX_COMPILER clang-cl) + else() + set(CMAKE_CXX_COMPILER cl) + endif() endif() set(CMAKE_MC_COMPILER mc)

6 years, 9 months

[reactos] 01/01: [CRT/STARTUP] For some reason we get unresolved external symbol ___globallocalestatus when compiling with clang-cl. CORE-11799 CORE-14042 (#94)

by Amine Khaldi

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=861360c65f4d73fce519c… commit 861360c65f4d73fce519c36de173e2163de726b2 Author: Amine Khaldi <amine.khaldi(a)reactos.org> AuthorDate: Thu Nov 23 13:25:57 2017 +0100 [CRT/STARTUP] For some reason we get unresolved external symbol ___globallocalestatus when compiling with clang-cl. CORE-11799 CORE-14042 (#94) --- sdk/lib/crt/startup/crtexe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sdk/lib/crt/startup/crtexe.c b/sdk/lib/crt/startup/crtexe.c index 1bd193bedf..87da3dae39 100644 --- a/sdk/lib/crt/startup/crtexe.c +++ b/sdk/lib/crt/startup/crtexe.c @@ -128,10 +128,11 @@ pre_c_init (void) { __setusermatherr (_matherr); } - +#ifndef __clang__ /* FIXME: CORE-14042 */ if (__globallocalestatus == -1) { } +#endif return 0; }

6 years, 9 months

[reactos] 01/01: [FASTFAT] Import the MS FastFAT sample from WXP. Modified it so that it builds in trunk (with GCC, though). Not to be switched for now, as it doesn't work in ReactOS (yet?).

by Pierre Schweitzer

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=aeadcaf515a0d2cf6252d… commit aeadcaf515a0d2cf6252dc0a6fd454ae86e793ac Author: Pierre Schweitzer <pierre(a)reactos.org> AuthorDate: Thu Nov 23 12:34:22 2017 +0100 [FASTFAT] Import the MS FastFAT sample from WXP. Modified it so that it builds in trunk (with GCC, though). Not to be switched for now, as it doesn't work in ReactOS (yet?). --- drivers/filesystems/fastfat_new/CMakeLists.txt | 44 + drivers/filesystems/fastfat_new/acchksup.c | 374 ++ drivers/filesystems/fastfat_new/allocsup.c | 5001 ++++++++++++++++++ drivers/filesystems/fastfat_new/cachesup.c | 1814 +++++++ drivers/filesystems/fastfat_new/cleanup.c | 1027 ++++ drivers/filesystems/fastfat_new/close.c | 1224 +++++ drivers/filesystems/fastfat_new/create.c | 5684 ++++++++++++++++++++ drivers/filesystems/fastfat_new/devctrl.c | 308 ++ drivers/filesystems/fastfat_new/deviosup.c | 3284 ++++++++++++ drivers/filesystems/fastfat_new/dirctrl.c | 1526 ++++++ drivers/filesystems/fastfat_new/dirsup.c | 3643 +++++++++++++ drivers/filesystems/fastfat_new/dumpsup.c | 381 ++ drivers/filesystems/fastfat_new/ea.c | 2013 +++++++ drivers/filesystems/fastfat_new/easup.c | 3811 ++++++++++++++ drivers/filesystems/fastfat_new/fastfat.rc | 5 + drivers/filesystems/fastfat_new/fat.h | 729 +++ drivers/filesystems/fastfat_new/fatdata.c | 1424 +++++ drivers/filesystems/fastfat_new/fatdata.h | 328 ++ drivers/filesystems/fastfat_new/fatinit.c | 675 +++ drivers/filesystems/fastfat_new/fatprocs.h | 2817 ++++++++++ drivers/filesystems/fastfat_new/fatprocssrc.c | 1 + drivers/filesystems/fastfat_new/fatstruc.h | 1614 ++++++ drivers/filesystems/fastfat_new/fileinfo.c | 4635 ++++++++++++++++ drivers/filesystems/fastfat_new/filobsup.c | 547 ++ drivers/filesystems/fastfat_new/flush.c | 1261 +++++ drivers/filesystems/fastfat_new/fsctrl.c | 6726 ++++++++++++++++++++++++ drivers/filesystems/fastfat_new/fspdisp.c | 472 ++ drivers/filesystems/fastfat_new/lfn.h | 56 + drivers/filesystems/fastfat_new/lockctrl.c | 726 +++ drivers/filesystems/fastfat_new/namesup.c | 1021 ++++ drivers/filesystems/fastfat_new/nodetype.h | 193 + drivers/filesystems/fastfat_new/pnp.c | 811 +++ drivers/filesystems/fastfat_new/read.c | 1649 ++++++ drivers/filesystems/fastfat_new/resrcsup.c | 807 +++ drivers/filesystems/fastfat_new/shutdown.c | 304 ++ drivers/filesystems/fastfat_new/sources | 45 + drivers/filesystems/fastfat_new/splaysup.c | 504 ++ drivers/filesystems/fastfat_new/strucsup.c | 3626 +++++++++++++ drivers/filesystems/fastfat_new/timesup.c | 364 ++ drivers/filesystems/fastfat_new/verfysup.c | 1853 +++++++ drivers/filesystems/fastfat_new/volinfo.c | 1272 +++++ drivers/filesystems/fastfat_new/workque.c | 362 ++ drivers/filesystems/fastfat_new/write.c | 2830 ++++++++++ 43 files changed, 67791 insertions(+) diff --git a/drivers/filesystems/fastfat_new/CMakeLists.txt b/drivers/filesystems/fastfat_new/CMakeLists.txt new file mode 100644 index 0000000000..f21d829e63 --- /dev/null +++ b/drivers/filesystems/fastfat_new/CMakeLists.txt @@ -0,0 +1,44 @@ + +list(APPEND SOURCE + acchksup.c + allocsup.c + cachesup.c + cleanup.c + close.c + create.c + devctrl.c + deviosup.c + dirctrl.c + dirsup.c + dumpsup.c + ea.c + easup.c + fatdata.c + fatinit.c + fatprocssrc.c + fileinfo.c + filobsup.c + flush.c + fsctrl.c + fspdisp.c + lockctrl.c + namesup.c + pnp.c + read.c + resrcsup.c + shutdown.c + splaysup.c + strucsup.c + timesup.c + verfysup.c + volinfo.c + workque.c + write.c + fatprocs.h) + +add_library(fastfat SHARED ${SOURCE} fastfat.rc) +set_module_type(fastfat kernelmodedriver) +target_link_libraries(fastfat ${PSEH_LIB} memcmp) +add_importlibs(fastfat ntoskrnl hal) +add_pch(fastfat fatprocs.h SOURCE) +add_cd_file(TARGET fastfat DESTINATION reactos/system32/drivers NO_CAB FOR all) diff --git a/drivers/filesystems/fastfat_new/acchksup.c b/drivers/filesystems/fastfat_new/acchksup.c new file mode 100644 index 0000000000..b0c78a81a4 --- /dev/null +++ b/drivers/filesystems/fastfat_new/acchksup.c @@ -0,0 +1,374 @@ +/*++ + +Copyright (c) 1989-2000 Microsoft Corporation + +Module Name: + + AcChkSup.c + +Abstract: + + This module implements the FAT access checking routine + + +--*/ + +#include "fatprocs.h" + +// +// Our debug trace level +// + +#define Dbg (DEBUG_TRACE_ACCHKSUP) + +NTSTATUS +FatCreateRestrictEveryoneToken( + IN PACCESS_TOKEN Token, + OUT PACCESS_TOKEN *RestrictedToken + ); + +#ifdef ALLOC_PRAGMA +#pragma alloc_text(PAGE, FatCheckFileAccess) +#pragma alloc_text(PAGE, FatCreateRestrictEveryoneToken) +#pragma alloc_text(PAGE, FatExplicitDeviceAccessGranted) +#endif + + +BOOLEAN +FatCheckFileAccess ( + PIRP_CONTEXT IrpContext, + IN UCHAR DirentAttributes, + IN PACCESS_MASK DesiredAccess + ) + +/*++ + +Routine Description: + + This routine checks if a desired access is allowed to a file represented + by the specified DirentAttriubutes. + +Arguments: + + DirentAttributes - Supplies the Dirent attributes to check access for + + DesiredAccess - Supplies the desired access mask that we are checking for + +Return Value: + + BOOLEAN - TRUE if access is allowed and FALSE otherwise + +--*/ + +{ + BOOLEAN Result; + + DebugTrace(+1, Dbg, "FatCheckFileAccess\n", 0); + DebugTrace( 0, Dbg, "DirentAttributes = %8lx\n", DirentAttributes); + DebugTrace( 0, Dbg, "DesiredAccess = %8lx\n", *DesiredAccess); + + // + // This procedures is programmed like a string of filters each + // filter checks to see if some access is allowed, if it is not allowed + // the filter return FALSE to the user without further checks otherwise + // it moves on to the next filter. The filter check is to check for + // desired access flags that are not allowed for a particular dirent + // + + Result = TRUE; + + _SEH2_TRY { + + // + // Check for Volume ID or Device Dirents, these are not allowed user + // access at all + // + + if (FlagOn(DirentAttributes, FAT_DIRENT_ATTR_VOLUME_ID) || + FlagOn(DirentAttributes, FAT_DIRENT_ATTR_DEVICE)) { + + DebugTrace(0, Dbg, "Cannot access volume id or device\n", 0); + + try_return( Result = FALSE ); + } + + // + // Check the desired access for the object - we only blackball that + // we do not understand. The model of filesystems using ACLs is that + // they do not type the ACL to the object the ACL is on. Permissions + // are not checked for consistency vs. the object type - dir/file. + // + + if (FlagOn(*DesiredAccess, ~(DELETE | + READ_CONTROL | + WRITE_OWNER | + WRITE_DAC | + SYNCHRONIZE | + ACCESS_SYSTEM_SECURITY | + FILE_WRITE_DATA | + FILE_READ_EA | + FILE_WRITE_EA | + FILE_READ_ATTRIBUTES | + FILE_WRITE_ATTRIBUTES | + FILE_LIST_DIRECTORY | + FILE_TRAVERSE | + FILE_DELETE_CHILD | + FILE_APPEND_DATA))) { + + DebugTrace(0, Dbg, "Cannot open object\n", 0); + + try_return( Result = FALSE ); + } + + // + // Check for a read-only Dirent + // + + if (FlagOn(DirentAttributes, FAT_DIRENT_ATTR_READ_ONLY)) { + + // + // Check the desired access for a read-only dirent, we blackball + // WRITE, FILE_APPEND_DATA, FILE_ADD_FILE, + // FILE_ADD_SUBDIRECTORY, and FILE_DELETE_CHILD + // + + if (FlagOn(*DesiredAccess, ~(DELETE | + READ_CONTROL | + WRITE_OWNER | + WRITE_DAC | + SYNCHRONIZE | + ACCESS_SYSTEM_SECURITY | + FILE_READ_DATA | + FILE_READ_EA | + FILE_WRITE_EA | + FILE_READ_ATTRIBUTES | + FILE_WRITE_ATTRIBUTES | + FILE_EXECUTE | + FILE_LIST_DIRECTORY | + FILE_TRAVERSE))) { + + DebugTrace(0, Dbg, "Cannot open readonly\n", 0); + + try_return( Result = FALSE ); + } + } + + try_exit: NOTHING; + } _SEH2_FINALLY { + + DebugUnwind( FatCheckFileAccess ); + + DebugTrace(-1, Dbg, "FatCheckFileAccess -> %08lx\n", Result); + } _SEH2_END; + + UNREFERENCED_PARAMETER( IrpContext ); + + return Result; +} + + +NTSTATUS +FatExplicitDeviceAccessGranted ( + IN PIRP_CONTEXT IrpContext, + IN PDEVICE_OBJECT DeviceObject, + IN PACCESS_STATE AccessState, + IN KPROCESSOR_MODE ProcessorMode + ) + +/*++ + +Routine Description: + + This function asks whether the SID described in the input access state has + been granted any explicit access to the given device object. It does this + by acquiring a token stripped of its ability to acquire access via the + Everyone SID and re-doing the access check. + +Arguments: + + DeviceObject - the device whose ACL will be checked + + AccessState - the access state describing the security context to be checked + + ProcessorMode - the mode this check should occur against + +Return Value: + + NTSTATUS - Indicating whether explicit access was granted. + +--*/ + +{ + NTSTATUS Status; +#ifndef __REACTOS__ + BOOLEAN Result; +#endif + + PACCESS_TOKEN OriginalAccessToken; + PACCESS_TOKEN RestrictedAccessToken; + + PACCESS_TOKEN *EffectiveToken; + + PRIVILEGE_SET PrivilegeSet; + + ACCESS_MASK GrantedAccess; + + // + // If the access state indicates that specific access other + // than traverse was acquired, either Everyone does have such + // access or explicit access was granted. In both cases, we're + // happy to let this proceed. + // + + if (AccessState->PreviouslyGrantedAccess & (SPECIFIC_RIGHTS_ALL ^ + FILE_TRAVERSE)) { + + return STATUS_SUCCESS; + } + + // + // If the manage volume privilege is held, this also permits access. + // + + PrivilegeSet.PrivilegeCount = 1; + PrivilegeSet.Control = PRIVILEGE_SET_ALL_NECESSARY; + PrivilegeSet.Privilege[0].Luid = RtlConvertLongToLuid( SE_MANAGE_VOLUME_PRIVILEGE ); + PrivilegeSet.Privilege[0].Attributes = 0; + + if (SePrivilegeCheck( &PrivilegeSet, + &AccessState->SubjectSecurityContext, + ProcessorMode )) { + + return STATUS_SUCCESS; + } + + // + // Capture the subject context as a prelude to everything below. + // + + SeLockSubjectContext( &AccessState->SubjectSecurityContext ); + + // + // Convert the token in the subject context into one which does not + // acquire access through the Everyone SID. + // + // The logic for deciding which token is effective comes from + // SeQuerySubjectContextToken; since there is no natural way + // of getting a pointer to it, do it by hand. + // + + if (ARGUMENT_PRESENT( AccessState->SubjectSecurityContext.ClientToken )) { + EffectiveToken = &AccessState->SubjectSecurityContext.ClientToken; + } else { + EffectiveToken = &AccessState->SubjectSecurityContext.PrimaryToken; + } + + OriginalAccessToken = *EffectiveToken; + Status = FatCreateRestrictEveryoneToken( OriginalAccessToken, &RestrictedAccessToken ); + + if (!NT_SUCCESS(Status)) { + + SeReleaseSubjectContext( &AccessState->SubjectSecurityContext ); + return Status; + } + + // + // Now see if the resulting context has access to the device through + // its explicitly granted access. We swap in our restricted token + // for this check as the effective client token. + // + + *EffectiveToken = RestrictedAccessToken; + +#ifndef __REACTOS__ + Result = SeAccessCheck( DeviceObject->SecurityDescriptor, +#else + SeAccessCheck( DeviceObject->SecurityDescriptor, +#endif + &AccessState->SubjectSecurityContext, + FALSE, + AccessState->OriginalDesiredAccess, + 0, + NULL, + IoGetFileObjectGenericMapping(), + ProcessorMode, + &GrantedAccess, + &Status ); + + *EffectiveToken = OriginalAccessToken; + + // + // Cleanup and return. + // + + SeUnlockSubjectContext( &AccessState->SubjectSecurityContext ); + ObDereferenceObject( RestrictedAccessToken ); + + return Status; +} + + +NTSTATUS +FatCreateRestrictEveryoneToken ( + IN PACCESS_TOKEN Token, + OUT PACCESS_TOKEN *RestrictedToken + ) + +/*++ + +Routine Description: + + This function takes a token as the input and returns a new restricted token + from which Everyone sid has been disabled. The resulting token may be used + to find out if access is available to a user-sid by explicit means. + +Arguments: + + Token - Input token from which Everyone sid needs to be deactivated. + + RestrictedToken - Receives the the new restricted token. + This must be released using ObDereferenceObject(*RestrictedToken); + +Return Value: + + NTSTATUS - Returned by SeFilterToken. + +--*/ + +{ + // + // Array of sids to disable. + // + + TOKEN_GROUPS SidsToDisable; + + NTSTATUS Status = STATUS_SUCCESS; + + // + // Restricted token will contain the original sids with one change: + // If Everyone sid is present in the token, it will be marked for DenyOnly. + // + + *RestrictedToken = NULL; + + // + // Put Everyone sid in the array of sids to disable. This will mark it + // for SE_GROUP_USE_FOR_DENY_ONLY and it'll only be applicable for Deny aces. + // + + SidsToDisable.GroupCount = 1; + SidsToDisable.Groups[0].Attributes = 0; + SidsToDisable.Groups[0].Sid = SeExports->SeWorldSid; + + Status = SeFilterToken( + Token, // Token that needs to be restricted. + 0, // No flags + &SidsToDisable, // Disable everyone sid + NULL, // Do not create any restricted sids + NULL, // Do not delete any privileges + RestrictedToken // Restricted token + ); + + return Status; +} + diff --git a/drivers/filesystems/fastfat_new/allocsup.c b/drivers/filesystems/fastfat_new/allocsup.c new file mode 100644 index 0000000000..79a9e7865a --- /dev/null +++ b/drivers/filesystems/fastfat_new/allocsup.c @@ -0,0 +1,5001 @@ +/*++ + +Copyright (c) 1990-2000 Microsoft Corporation + +Module Name: + + AllocSup.c + +Abstract: + + This module implements the Allocation support routines for Fat. + + +--*/ + +#include "fatprocs.h" + +// +// The Bug check file id for this module +// + +#define BugCheckFileId (FAT_BUG_CHECK_ALLOCSUP) + +// +// Local debug trace level +// + +#define Dbg (DEBUG_TRACE_ALLOCSUP) + +#define FatMin(a, b) ((a) < (b) ? (a) : (b)) + +// +// This strucure is used by FatLookupFatEntry to remember a pinned page +// of fat. +// + +typedef struct _FAT_ENUMERATION_CONTEXT { + + VBO VboOfPinnedPage; + PBCB Bcb; + PVOID PinnedPage; + +} FAT_ENUMERATION_CONTEXT, *PFAT_ENUMERATION_CONTEXT; + +// +// Local support routine prototypes +// + +VOID +FatLookupFatEntry( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG FatIndex, + IN OUT PULONG FatEntry, + IN OUT PFAT_ENUMERATION_CONTEXT Context + ); + +VOID +FatSetFatRun( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG StartingFatIndex, + IN ULONG ClusterCount, + IN BOOLEAN ChainTogether + ); + +UCHAR +FatLogOf( + IN ULONG Value + ); + +// +// Note that the KdPrint below will ONLY fire when the assert does. Leave it +// alone. +// + +#if DBG +#define ASSERT_CURRENT_WINDOW_GOOD(VCB) { \ + ULONG FreeClusterBitMapClear; \ + ASSERT( (VCB)->FreeClusterBitMap.Buffer != NULL ); \ + FreeClusterBitMapClear = RtlNumberOfClearBits(&(VCB)->FreeClusterBitMap); \ + if ((VCB)->CurrentWindow->ClustersFree != FreeClusterBitMapClear) { \ + KdPrint(("FAT: ClustersFree %x h != FreeClusterBitMapClear %x h\n", \ + (VCB)->CurrentWindow->ClustersFree, \ + FreeClusterBitMapClear)); \ + } \ + ASSERT( (VCB)->CurrentWindow->ClustersFree == FreeClusterBitMapClear ); \ +} +#else +#define ASSERT_CURRENT_WINDOW_GOOD(VCB) +#endif + +// +// The following macros provide a convenient way of hiding the details +// of bitmap allocation schemes. +// + + +// +// VOID +// FatLockFreeClusterBitMap ( +// IN PVCB Vcb +// ); +// + +#define FatLockFreeClusterBitMap(VCB) { \ + ASSERT(KeAreApcsDisabled()); \ + ExAcquireFastMutexUnsafe( &(VCB)->FreeClusterBitMapMutex ); \ + ASSERT_CURRENT_WINDOW_GOOD(VCB) \ +} + +// +// VOID +// FatUnlockFreeClusterBitMap ( +// IN PVCB Vcb +// ); +// + +#define FatUnlockFreeClusterBitMap(VCB) { \ + ASSERT_CURRENT_WINDOW_GOOD(VCB) \ + ASSERT(KeAreApcsDisabled()); \ + ExReleaseFastMutexUnsafe( &(VCB)->FreeClusterBitMapMutex ); \ +} + +// +// BOOLEAN +// FatIsClusterFree ( +// IN PIRP_CONTEXT IrpContext, +// IN PVCB Vcb, +// IN ULONG FatIndex +// ); +// + +#define FatIsClusterFree(IRPCONTEXT,VCB,FAT_INDEX) \ + (RtlCheckBit(&(VCB)->FreeClusterBitMap,(FAT_INDEX)-2) == 0) + +// +// VOID +// FatFreeClusters ( +// IN PIRP_CONTEXT IrpContext, +// IN PVCB Vcb, +// IN ULONG FatIndex, +// IN ULONG ClusterCount +// ); +// + +#define FatFreeClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ + if ((CLUSTER_COUNT) == 1) { \ + FatSetFatEntry((IRPCONTEXT),(VCB),(FAT_INDEX),FAT_CLUSTER_AVAILABLE); \ + } else { \ + FatSetFatRun((IRPCONTEXT),(VCB),(FAT_INDEX),(CLUSTER_COUNT),FALSE); \ + } \ +} + +// +// VOID +// FatAllocateClusters ( +// IN PIRP_CONTEXT IrpContext, +// IN PVCB Vcb, +// IN ULONG FatIndex, +// IN ULONG ClusterCount +// ); +// + +#define FatAllocateClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ + if ((CLUSTER_COUNT) == 1) { \ + FatSetFatEntry((IRPCONTEXT),(VCB),(FAT_INDEX),FAT_CLUSTER_LAST); \ + } else { \ + FatSetFatRun((IRPCONTEXT),(VCB),(FAT_INDEX),(CLUSTER_COUNT),TRUE); \ + } \ +} + +// +// VOID +// FatUnreserveClusters ( +// IN PIRP_CONTEXT IrpContext, +// IN PVCB Vcb, +// IN ULONG FatIndex, +// IN ULONG ClusterCount +// ); +// + +#define FatUnreserveClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ + ASSERT( (FAT_INDEX) + (CLUSTER_COUNT) - 2 <= (VCB)->FreeClusterBitMap.SizeOfBitMap ); \ + ASSERT( (FAT_INDEX) >= 2); \ + RtlClearBits(&(VCB)->FreeClusterBitMap,(FAT_INDEX)-2,(CLUSTER_COUNT)); \ + if ((FAT_INDEX) < (VCB)->ClusterHint) { \ + (VCB)->ClusterHint = (FAT_INDEX); \ + } \ +} + +// +// VOID +// FatReserveClusters ( +// IN PIRP_CONTEXT IrpContext, +// IN PVCB Vcb, +// IN ULONG FatIndex, +// IN ULONG ClusterCount +// ); +// +// Handle wrapping the hint back to the front. +// + +#define FatReserveClusters(IRPCONTEXT,VCB,FAT_INDEX,CLUSTER_COUNT) { \ + ULONG _AfterRun = (FAT_INDEX) + (CLUSTER_COUNT); \ + ASSERT( (FAT_INDEX) + (CLUSTER_COUNT) - 2 <= (VCB)->FreeClusterBitMap.SizeOfBitMap ); \ + ASSERT( (FAT_INDEX) >= 2); \ + RtlSetBits(&(VCB)->FreeClusterBitMap,(FAT_INDEX)-2,(CLUSTER_COUNT)); \ + \ + if (_AfterRun - 2 >= (VCB)->FreeClusterBitMap.SizeOfBitMap) { \ + _AfterRun = 2; \ + } \ + if (RtlCheckBit(&(VCB)->FreeClusterBitMap, _AfterRun - 2)) { \ + (VCB)->ClusterHint = RtlFindClearBits( &(VCB)->FreeClusterBitMap, 1, _AfterRun - 2) + 2; \ + if (1 == (VCB)->ClusterHint) { \ + (VCB)->ClusterHint = 2; \ + } \ + } \ + else { \ + (VCB)->ClusterHint = _AfterRun; \ + } \ +} + +// +// ULONG +// FatFindFreeClusterRun ( +// IN PIRP_CONTEXT IrpContext, +// IN PVCB Vcb, +// IN ULONG ClusterCount, +// IN ULONG AlternateClusterHint +// ); +// +// Do a special check if only one cluster is desired. +// + +#define FatFindFreeClusterRun(IRPCONTEXT,VCB,CLUSTER_COUNT,CLUSTER_HINT) ( \ + (CLUSTER_COUNT == 1) && \ + FatIsClusterFree((IRPCONTEXT), (VCB), (CLUSTER_HINT)) ? \ + (CLUSTER_HINT) : \ + RtlFindClearBits( &(VCB)->FreeClusterBitMap, \ + (CLUSTER_COUNT), \ + (CLUSTER_HINT) - 2) + 2 \ +) + +// +// FAT32: Define the maximum size of the FreeClusterBitMap to be the +// maximum size of a FAT16 FAT. If there are more clusters on the +// volume than can be represented by this many bytes of bitmap, the +// FAT will be split into "buckets", each of which does fit. +// +// Note this count is in clusters/bits of bitmap. +// + +#define MAX_CLUSTER_BITMAP_SIZE (1 << 16) + +// +// Calculate the window a given cluster number is in. +// + +#define FatWindowOfCluster(C) (((C) - 2) / MAX_CLUSTER_BITMAP_SIZE) + +#ifdef ALLOC_PRAGMA +#pragma alloc_text(PAGE, FatAddFileAllocation) +#pragma alloc_text(PAGE, FatAllocateDiskSpace) +#pragma alloc_text(PAGE, FatDeallocateDiskSpace) +#pragma alloc_text(PAGE, FatExamineFatEntries) +#pragma alloc_text(PAGE, FatInterpretClusterType) +#pragma alloc_text(PAGE, FatLogOf) +#pragma alloc_text(PAGE, FatLookupFatEntry) +#pragma alloc_text(PAGE, FatLookupFileAllocation) +#pragma alloc_text(PAGE, FatLookupFileAllocationSize) +#pragma alloc_text(PAGE, FatMergeAllocation) +#pragma alloc_text(PAGE, FatSetFatEntry) +#pragma alloc_text(PAGE, FatSetFatRun) +#pragma alloc_text(PAGE, FatSetupAllocationSupport) +#pragma alloc_text(PAGE, FatSplitAllocation) +#pragma alloc_text(PAGE, FatTearDownAllocationSupport) +#pragma alloc_text(PAGE, FatTruncateFileAllocation) +#endif + + +INLINE +ULONG +FatSelectBestWindow( + IN PVCB Vcb + ) +/*++ + +Routine Description: + + Choose a window to allocate clusters from. Order of preference is: + + 1. First window with >50% free clusters + 2. First empty window + 3. Window with greatest number of free clusters. + +Arguments: + + Vcb - Supplies the Vcb for the volume + +Return Value: + + 'Best window' number (index into Vcb->Windows[]) + +--*/ +{ + ULONG i, Fave = 0; + ULONG MaxFree = 0; + ULONG FirstEmpty = -1; + ULONG ClustersPerWindow = MAX_CLUSTER_BITMAP_SIZE; + + ASSERT( 1 != Vcb->NumberOfWindows); + + for (i = 0; i < Vcb->NumberOfWindows; i++) { + + if (Vcb->Windows[i].ClustersFree == ClustersPerWindow) { + + if (-1 == FirstEmpty) { + + // + // Keep note of the first empty window on the disc + // + + FirstEmpty = i; + } + } + else if (Vcb->Windows[i].ClustersFree > MaxFree) { + + // + // This window has the most free clusters, so far + // + + MaxFree = Vcb->Windows[i].ClustersFree; + Fave = i; + + // + // If this window has >50% free clusters, then we will take it, + // so don't bother considering more windows. + // + + if (MaxFree >= (ClustersPerWindow >> 1)) { + + break; + } + } + } + + // + // If there were no windows with 50% or more freespace, then select the + // first empty window on the disc, if any - otherwise we'll just go with + // the one with the most free clusters. + // + + if ((MaxFree < (ClustersPerWindow >> 1)) && (-1 != FirstEmpty)) { + + Fave = FirstEmpty; + } + + return Fave; +} + + +VOID +FatSetupAllocationSupport ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb + ) + +/*++ + +Routine Description: + + This routine fills in the Allocation Support structure in the Vcb. + Most entries are computed using fat.h macros supplied with data from + the Bios Parameter Block. The free cluster count, however, requires + going to the Fat and actually counting free sectors. At the same time + the free cluster bit map is initalized. + +Arguments: + + Vcb - Supplies the Vcb to fill in. + +--*/ + +{ +#ifndef __REACTOS__ + ULONG BitMapSize; + PVOID BitMapBuffer; +#endif + ULONG BitIndex; + +#ifndef __REACTOS__ + PBCB Bcb; + + ULONG Page; + ULONG Offset; + ULONG FatIndexBitSize; +#endif + ULONG ClustersDescribableByFat; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatSetupAllocationSupport\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + + // + // Compute a number of fields for Vcb.AllocationSupport + // + + Vcb->AllocationSupport.RootDirectoryLbo = FatRootDirectoryLbo( &Vcb->Bpb ); + Vcb->AllocationSupport.RootDirectorySize = FatRootDirectorySize( &Vcb->Bpb ); + + Vcb->AllocationSupport.FileAreaLbo = FatFileAreaLbo( &Vcb->Bpb ); + + Vcb->AllocationSupport.NumberOfClusters = FatNumberOfClusters( &Vcb->Bpb ); + + Vcb->AllocationSupport.FatIndexBitSize = FatIndexBitSize( &Vcb->Bpb ); + + Vcb->AllocationSupport.LogOfBytesPerSector = FatLogOf(Vcb->Bpb.BytesPerSector); + Vcb->AllocationSupport.LogOfBytesPerCluster = FatLogOf(FatBytesPerCluster( &Vcb->Bpb )); + Vcb->AllocationSupport.NumberOfFreeClusters = 0; + + // + // Deal with a bug in DOS 5 format, if the Fat is not big enough to + // describe all the clusters on the disk, reduce this number. We expect + // that fat32 volumes will not have this problem. + // + // Turns out this was not a good assumption. We have to do this always now. + // + + ClustersDescribableByFat = ( ((FatIsFat32(Vcb)? Vcb->Bpb.LargeSectorsPerFat : + Vcb->Bpb.SectorsPerFat) * + Vcb->Bpb.BytesPerSector * 8) + / FatIndexBitSize(&Vcb->Bpb) ) - 2; + + if (Vcb->AllocationSupport.NumberOfClusters > ClustersDescribableByFat) { + + Vcb->AllocationSupport.NumberOfClusters = ClustersDescribableByFat; + } + + // + // Extend the virtual volume file to include the Fat + // + + { + CC_FILE_SIZES FileSizes; + + FileSizes.AllocationSize.QuadPart = + FileSizes.FileSize.QuadPart = (FatReservedBytes( &Vcb->Bpb ) + + FatBytesPerFat( &Vcb->Bpb )); + FileSizes.ValidDataLength = FatMaxLarge; + + if ( Vcb->VirtualVolumeFile->PrivateCacheMap == NULL ) { + + CcInitializeCacheMap( Vcb->VirtualVolumeFile, + &FileSizes, + TRUE, + &FatData.CacheManagerNoOpCallbacks, + Vcb ); + + } else { + + CcSetFileSizes( Vcb->VirtualVolumeFile, &FileSizes ); + } + } + + _SEH2_TRY { + + if (FatIsFat32(Vcb) && + Vcb->AllocationSupport.NumberOfClusters > MAX_CLUSTER_BITMAP_SIZE) { + + Vcb->NumberOfWindows = (Vcb->AllocationSupport.NumberOfClusters + + MAX_CLUSTER_BITMAP_SIZE - 1) / + MAX_CLUSTER_BITMAP_SIZE; + +#ifndef __REACTOS__ + BitMapSize = MAX_CLUSTER_BITMAP_SIZE; +#endif + + } else { + + Vcb->NumberOfWindows = 1; +#ifndef __REACTOS__ + BitMapSize = Vcb->AllocationSupport.NumberOfClusters; +#endif + } + + Vcb->Windows = FsRtlAllocatePoolWithTag( PagedPool, + Vcb->NumberOfWindows * sizeof(FAT_WINDOW), + TAG_FAT_WINDOW ); + + RtlInitializeBitMap( &Vcb->FreeClusterBitMap, + NULL, + 0 ); + + // + // Chose a FAT window to begin operation in. + // + + if (Vcb->NumberOfWindows > 1) { + + // + // Read the fat and count up free clusters. We bias by the two reserved + // entries in the FAT. + // + + FatExamineFatEntries( IrpContext, Vcb, + 2, + Vcb->AllocationSupport.NumberOfClusters + 2 - 1, + TRUE, + NULL, + NULL); + + + // + // Pick a window to begin allocating from + // + + Vcb->CurrentWindow = &Vcb->Windows[ FatSelectBestWindow( Vcb)]; + + } else { + + Vcb->CurrentWindow = &Vcb->Windows[0]; + + // + // Carefully bias ourselves by the two reserved entries in the FAT. + // + + Vcb->CurrentWindow->FirstCluster = 2; + Vcb->CurrentWindow->LastCluster = Vcb->AllocationSupport.NumberOfClusters + 2 - 1; + } + + // + // Now transition to the FAT window we have chosen. + // + + FatExamineFatEntries( IrpContext, Vcb, + 0, + 0, + FALSE, + Vcb->CurrentWindow, + NULL); + + // + // Now set the ClusterHint to the first free bit in our favorite + // window (except the ClusterHint is off by two). + // + + Vcb->ClusterHint = + (BitIndex = RtlFindClearBits( &Vcb->FreeClusterBitMap, 1, 0 )) != -1 ? + BitIndex + 2 : 2; + + } _SEH2_FINALLY { + + DebugUnwind( FatSetupAllocationSupport ); + + // + // If we hit an exception, back out. + // + + if (_SEH2_AbnormalTermination()) { + + FatTearDownAllocationSupport( IrpContext, Vcb ); + } + } _SEH2_END; + + return; +} + + +VOID +FatTearDownAllocationSupport ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb + ) + +/*++ + +Routine Description: + + This routine prepares the volume for closing. Specifically, we must + release the free fat bit map buffer, and uninitialize the dirty fat + Mcb. + +Arguments: + + Vcb - Supplies the Vcb to fill in. + +Return Value: + + VOID + +--*/ + +{ + DebugTrace(+1, Dbg, "FatTearDownAllocationSupport\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + + PAGED_CODE(); + + // + // If there are FAT buckets, free them. + // + + if ( Vcb->Windows != NULL ) { + + ExFreePool( Vcb->Windows ); + Vcb->Windows = NULL; + } + + // + // Free the memory associated with the free cluster bitmap. + // + + if ( Vcb->FreeClusterBitMap.Buffer != NULL ) { + + ExFreePool( Vcb->FreeClusterBitMap.Buffer ); + + // + // NULL this field as an flag. + // + + Vcb->FreeClusterBitMap.Buffer = NULL; + } + + // + // And remove all the runs in the dirty fat Mcb + // + + FatRemoveMcbEntry( Vcb, &Vcb->DirtyFatMcb, 0, 0xFFFFFFFF ); + + DebugTrace(-1, Dbg, "FatTearDownAllocationSupport -> (VOID)\n", 0); + + UNREFERENCED_PARAMETER( IrpContext ); + + return; +} + + +VOID +FatLookupFileAllocation ( + IN PIRP_CONTEXT IrpContext, + IN PFCB FcbOrDcb, + IN VBO Vbo, + OUT PLBO Lbo, + OUT PULONG ByteCount, + OUT PBOOLEAN Allocated, + OUT PBOOLEAN EndOnMax, + OUT PULONG Index + ) + +/*++ + +Routine Description: + + This routine looks up the existing mapping of VBO to LBO for a + file/directory. The information it queries is either stored in the + mcb field of the fcb/dcb or it is stored on in the fat table and + needs to be retrieved and decoded, and updated in the mcb. + +Arguments: + + FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being queried + + Vbo - Supplies the VBO whose LBO we want returned + + Lbo - Receives the LBO corresponding to the input Vbo if one exists + + ByteCount - Receives the number of bytes within the run the run + that correpond between the input vbo and output lbo. + + Allocated - Receives TRUE if the Vbo does have a corresponding Lbo + and FALSE otherwise. + + EndOnMax - Receives TRUE if the run ends in the maximal FAT cluster, + which results in a fractional bytecount. + + Index - Receives the Index of the run + +--*/ + +{ + VBO CurrentVbo; + LBO CurrentLbo; + LBO PriorLbo; + + VBO FirstVboOfCurrentRun; + LBO FirstLboOfCurrentRun; + + BOOLEAN LastCluster; + ULONG Runs; + + PVCB Vcb; + FAT_ENTRY FatEntry; + ULONG BytesPerCluster; + ULARGE_INTEGER BytesOnVolume; + + FAT_ENUMERATION_CONTEXT Context; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatLookupFileAllocation\n", 0); + DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); + DebugTrace( 0, Dbg, " Vbo = %8lx\n", Vbo); + DebugTrace( 0, Dbg, " Lbo = %8lx\n", Lbo); + DebugTrace( 0, Dbg, " ByteCount = %8lx\n", ByteCount); + DebugTrace( 0, Dbg, " Allocated = %8lx\n", Allocated); + + Context.Bcb = NULL; + + Vcb = FcbOrDcb->Vcb; + + *EndOnMax = FALSE; + + // + // Check the trivial case that the mapping is already in our + // Mcb. + // + + if ( FatLookupMcbEntry(Vcb, &FcbOrDcb->Mcb, Vbo, Lbo, ByteCount, Index) ) { + + *Allocated = TRUE; + + ASSERT( ByteCount != 0); + + // + // Detect the overflow case, trim and claim the condition. + // + + if (Vbo + *ByteCount == 0) { + + *EndOnMax = TRUE; + } + + DebugTrace( 0, Dbg, "Found run in Mcb.\n", 0); + DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); + return; + } + + // + // Initialize the Vcb, the cluster size, LastCluster, and + // FirstLboOfCurrentRun (to be used as an indication of the first + // iteration through the following while loop). + // + + BytesPerCluster = 1 << Vcb->AllocationSupport.LogOfBytesPerCluster; + + BytesOnVolume.QuadPart = UInt32x32To64( Vcb->AllocationSupport.NumberOfClusters, BytesPerCluster ); + + LastCluster = FALSE; + FirstLboOfCurrentRun = 0; + + // + // Discard the case that the request extends beyond the end of + // allocation. Note that if the allocation size if not known + // AllocationSize is set to 0xffffffff. + // + + if ( Vbo >= FcbOrDcb->Header.AllocationSize.LowPart ) { + + *Allocated = FALSE; + + DebugTrace( 0, Dbg, "Vbo beyond end of file.\n", 0); + DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); + return; + } + + // + // The Vbo is beyond the last Mcb entry. So we adjust Current Vbo/Lbo + // and FatEntry to describe the beginning of the last entry in the Mcb. + // This is used as initialization for the following loop. + // + // If the Mcb was empty, we start at the beginning of the file with + // CurrentVbo set to 0 to indicate a new run. + // + + if (FatLookupLastMcbEntry( Vcb, &FcbOrDcb->Mcb, &CurrentVbo, &CurrentLbo, &Runs )) { + + DebugTrace( 0, Dbg, "Current Mcb size = %8lx.\n", CurrentVbo + 1); + + CurrentVbo -= (BytesPerCluster - 1); + CurrentLbo -= (BytesPerCluster - 1); + + // + // Convert an index to a count. + // + + Runs += 1; + + } else { + + DebugTrace( 0, Dbg, "Mcb empty.\n", 0); + + // + // Check for an FcbOrDcb that has no allocation + // + + if (FcbOrDcb->FirstClusterOfFile == 0) { + + *Allocated = FALSE; + + DebugTrace( 0, Dbg, "File has no allocation.\n", 0); + DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); + return; + + } else { + + CurrentVbo = 0; + CurrentLbo = FatGetLboFromIndex( Vcb, FcbOrDcb->FirstClusterOfFile ); + FirstVboOfCurrentRun = CurrentVbo; + FirstLboOfCurrentRun = CurrentLbo; + + Runs = 0; + + DebugTrace( 0, Dbg, "First Lbo of file = %8lx\n", CurrentLbo); + } + } + + // + // Now we know that we are looking up a valid Vbo, but it is + // not in the Mcb, which is a monotonically increasing list of + // Vbo's. Thus we have to go to the Fat, and update + // the Mcb as we go. We use a try-finally to unpin the page + // of fat hanging around. Also we mark *Allocated = FALSE, so that + // the caller wont try to use the data if we hit an exception. + // + + *Allocated = FALSE; + + _SEH2_TRY { + + FatEntry = (FAT_ENTRY)FatGetIndexFromLbo( Vcb, CurrentLbo ); + + // + // ASSERT that CurrentVbo and CurrentLbo are now cluster alligned. + // The assumption here, is that only whole clusters of Vbos and Lbos + // are mapped in the Mcb. + // + + ASSERT( ((CurrentLbo - Vcb->AllocationSupport.FileAreaLbo) + % BytesPerCluster == 0) && + (CurrentVbo % BytesPerCluster == 0) ); + + // + // Starting from the first Vbo after the last Mcb entry, scan through + // the Fat looking for our Vbo. We continue through the Fat until we + // hit a noncontiguity beyond the desired Vbo, or the last cluster. + // + + while ( !LastCluster ) { + + // + // Get the next fat entry, and update our Current variables. + // + +#ifndef __REACTOS__ + FatLookupFatEntry( IrpContext, Vcb, FatEntry, &FatEntry, &Context ); +#else + FatLookupFatEntry( IrpContext, Vcb, FatEntry, (PULONG)&FatEntry, &Context ); +#endif + + PriorLbo = CurrentLbo; + CurrentLbo = FatGetLboFromIndex( Vcb, FatEntry ); + CurrentVbo += BytesPerCluster; + + switch ( FatInterpretClusterType( Vcb, FatEntry )) { + + // + // Check for a break in the Fat allocation chain. + // + + case FatClusterAvailable: + case FatClusterReserved: + case FatClusterBad: + + DebugTrace( 0, Dbg, "Break in allocation chain, entry = %d\n", FatEntry); + DebugTrace(-1, Dbg, "FatLookupFileAllocation -> Fat Corrupt. Raise Status.\n", 0); + + FatPopUpFileCorrupt( IrpContext, FcbOrDcb ); + FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); + break; + + // + // If this is the last cluster, we must update the Mcb and + // exit the loop. + // + + case FatClusterLast: + + // + // Assert we know where the current run started. If the + // Mcb was empty when we were called, thenFirstLboOfCurrentRun + // was set to the start of the file. If the Mcb contained an + // entry, then FirstLboOfCurrentRun was set on the first + // iteration through the loop. Thus if FirstLboOfCurrentRun + // is 0, then there was an Mcb entry and we are on our first + // iteration, meaing that the last cluster in the Mcb was + // really the last allocated cluster, but we checked Vbo + // against AllocationSize, and found it OK, thus AllocationSize + // must be too large. + // + // Note that, when we finally arrive here, CurrentVbo is actually + // the first Vbo beyond the file allocation and CurrentLbo is + // meaningless. + // + + DebugTrace( 0, Dbg, "Read last cluster of file.\n", 0); + + // + // Detect the case of the maximal file. Note that this really isn't + // a proper Vbo - those are zero-based, and this is a one-based number. + // The maximal file, of 2^32 - 1 bytes, has a maximum byte offset of + // 2^32 - 2. + // + // Just so we don't get confused here. + // + + if (CurrentVbo == 0) { + + *EndOnMax = TRUE; + CurrentVbo -= 1; + } + + LastCluster = TRUE; + + if (FirstLboOfCurrentRun != 0 ) { + + DebugTrace( 0, Dbg, "Adding a run to the Mcb.\n", 0); + DebugTrace( 0, Dbg, " Vbo = %08lx.\n", FirstVboOfCurrentRun); + DebugTrace( 0, Dbg, " Lbo = %08lx.\n", FirstLboOfCurrentRun); + DebugTrace( 0, Dbg, " Length = %08lx.\n", CurrentVbo - FirstVboOfCurrentRun); + + (VOID)FatAddMcbEntry( Vcb, + &FcbOrDcb->Mcb, + FirstVboOfCurrentRun, + FirstLboOfCurrentRun, + CurrentVbo - FirstVboOfCurrentRun ); + + Runs += 1; + } + + // + // Being at the end of allocation, make sure we have found + // the Vbo. If we haven't, seeing as we checked VBO + // against AllocationSize, the real disk allocation is less + // than that of AllocationSize. This comes about when the + // real allocation is not yet known, and AllocaitonSize + // contains MAXULONG. + // + // KLUDGE! - If we were called by FatLookupFileAllocationSize + // Vbo is set to MAXULONG - 1, and AllocationSize to the lookup + // hint. Thus we merrily go along looking for a match that isn't + // there, but in the meantime building an Mcb. If this is + // the case, fill in AllocationSize and return. + // + + if ( Vbo == MAXULONG - 1 ) { + + *Allocated = FALSE; + FcbOrDcb->Header.AllocationSize.QuadPart = CurrentVbo; + + DebugTrace( 0, Dbg, "New file allocation size = %08lx.\n", CurrentVbo); + try_return ( NOTHING ); + } + + // + // We will lie ever so slightly if we really terminated on the + // maximal byte of a file. It is really allocated. + // + + if (Vbo >= CurrentVbo && !*EndOnMax) { + + *Allocated = FALSE; + try_return ( NOTHING ); + } + + break; + + // + // This is a continuation in the chain. If the run has a + // discontiguity at this point, update the Mcb, and if we are beyond + // the desired Vbo, this is the end of the run, so set LastCluster + // and exit the loop. + // + + case FatClusterNext: + + // + // This is the loop check. The Vbo must not be bigger than the size of + // the volume, and the Vbo must not have a) wrapped and b) not been at the + // very last cluster in the chain, for the case of the maximal file. + // + + if ( CurrentVbo == 0 || + (BytesOnVolume.HighPart == 0 && CurrentVbo > BytesOnVolume.LowPart)) { + + FatPopUpFileCorrupt( IrpContext, FcbOrDcb ); + FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); + } + + if ( PriorLbo + BytesPerCluster != CurrentLbo ) { + + // + // Note that on the first time through the loop + // (FirstLboOfCurrentRun == 0), we don't add the + // run to the Mcb since it curresponds to the last + // run already stored in the Mcb. + // + + if ( FirstLboOfCurrentRun != 0 ) { + + DebugTrace( 0, Dbg, "Adding a run to the Mcb.\n", 0); + DebugTrace( 0, Dbg, " Vbo = %08lx.\n", FirstVboOfCurrentRun); + DebugTrace( 0, Dbg, " Lbo = %08lx.\n", FirstLboOfCurrentRun); + DebugTrace( 0, Dbg, " Length = %08lx.\n", CurrentVbo - FirstVboOfCurrentRun); + + FatAddMcbEntry( Vcb, + &FcbOrDcb->Mcb, + FirstVboOfCurrentRun, + FirstLboOfCurrentRun, + CurrentVbo - FirstVboOfCurrentRun ); + + Runs += 1; + } + + // + // Since we are at a run boundry, with CurrentLbo and + // CurrentVbo being the first cluster of the next run, + // we see if the run we just added encompases the desired + // Vbo, and if so exit. Otherwise we set up two new + // First*boOfCurrentRun, and continue. + // + + if (CurrentVbo > Vbo) { + + LastCluster = TRUE; + + } else { + + FirstVboOfCurrentRun = CurrentVbo; + FirstLboOfCurrentRun = CurrentLbo; + } + } + break; + + default: + + DebugTrace(0, Dbg, "Illegal Cluster Type.\n", FatEntry); + + FatBugCheck( 0, 0, 0 ); + + break; + + } // switch() + } // while() + + // + // Load up the return parameters. + // + // On exit from the loop, Vbo still contains the desired Vbo, and + // CurrentVbo is the first byte after the run that contained the + // desired Vbo. + // + + *Allocated = TRUE; + + *Lbo = FirstLboOfCurrentRun + (Vbo - FirstVboOfCurrentRun); + + *ByteCount = CurrentVbo - Vbo; + + if (ARGUMENT_PRESENT(Index)) { + + // + // Note that Runs only needs to be accurate with respect to where we + // ended. Since partial-lookup cases will occur without exclusive + // synchronization, the Mcb itself may be much bigger by now. + // + + *Index = Runs - 1; + } + + try_exit: NOTHING; + + } _SEH2_FINALLY { + + DebugUnwind( FatLookupFileAllocation ); + + // + // We are done reading the Fat, so unpin the last page of fat + // that is hanging around + // + + FatUnpinBcb( IrpContext, Context.Bcb ); + + DebugTrace(-1, Dbg, "FatLookupFileAllocation -> (VOID)\n", 0); + } _SEH2_END; + + return; +} + + +VOID +FatAddFileAllocation ( + IN PIRP_CONTEXT IrpContext, + IN PFCB FcbOrDcb, + IN PFILE_OBJECT FileObject OPTIONAL, + IN ULONG DesiredAllocationSize + ) + +/*++ + +Routine Description: + + This routine adds additional allocation to the specified file/directory. + Additional allocation is added by appending clusters to the file/directory. + + If the file already has a sufficient allocation then this procedure + is effectively a noop. + +Arguments: + + FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being modified. + This parameter must not specify the root dcb. + + FileObject - If supplied inform the cache manager of the change. + + DesiredAllocationSize - Supplies the minimum size, in bytes, that we want + allocated to the file/directory. + +--*/ + +{ + PVCB Vcb; + LARGE_MCB NewMcb; + PLARGE_MCB McbToCleanup = NULL; + PDIRENT Dirent = NULL; + ULONG NewAllocation; + PBCB Bcb = NULL; + BOOLEAN UnwindWeAllocatedDiskSpace = FALSE; + BOOLEAN UnwindAllocationSizeSet = FALSE; + BOOLEAN UnwindCacheManagerInformed = FALSE; + BOOLEAN UnwindWeInitializedMcb = FALSE; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatAddFileAllocation\n", 0); + DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); + DebugTrace( 0, Dbg, " DesiredAllocationSize = %8lx\n", DesiredAllocationSize); + + // + // If we haven't yet set the correct AllocationSize, do so. + // + + if (FcbOrDcb->Header.AllocationSize.QuadPart == FCB_LOOKUP_ALLOCATIONSIZE_HINT) { + + FatLookupFileAllocationSize( IrpContext, FcbOrDcb ); + } + + // + // Check for the benign case that the desired allocation is already + // within the allocation size. + // + + if (DesiredAllocationSize <= FcbOrDcb->Header.AllocationSize.LowPart) { + + DebugTrace(0, Dbg, "Desired size within current allocation.\n", 0); + + DebugTrace(-1, Dbg, "FatAddFileAllocation -> (VOID)\n", 0); + return; + } + + DebugTrace( 0, Dbg, "InitialAllocation = %08lx.\n", FcbOrDcb->Header.AllocationSize.LowPart); + + // + // Get a chunk of disk space that will fullfill our needs. If there + // was no initial allocation, start from the hint in the Vcb, otherwise + // try to allocate from the cluster after the initial allocation. + // + // If there was no initial allocation to the file, we can just use the + // Mcb in the FcbOrDcb, otherwise we have to use a new one, and merge + // it to the one in the FcbOrDcb. + // + + Vcb = FcbOrDcb->Vcb; + + _SEH2_TRY { + + if (FcbOrDcb->Header.AllocationSize.LowPart == 0) { + + LBO FirstLboOfFile; + + ASSERT( FcbOrDcb->FcbCondition == FcbGood ); + + FatGetDirentFromFcbOrDcb( IrpContext, + FcbOrDcb, + &Dirent, + &Bcb ); + + ASSERT( Bcb != NULL ); + + // + // Set this dirty right now since this call can fail. + // + + FatSetDirtyBcb( IrpContext, Bcb, Vcb, TRUE ); + + + FatAllocateDiskSpace( IrpContext, + Vcb, + 0, + &DesiredAllocationSize, + FALSE, + &FcbOrDcb->Mcb ); + + UnwindWeAllocatedDiskSpace = TRUE; + McbToCleanup = &FcbOrDcb->Mcb; + + // + // We have to update the dirent and FcbOrDcb copies of + // FirstClusterOfFile since before it was 0 + // + + FatLookupMcbEntry( FcbOrDcb->Vcb, + &FcbOrDcb->Mcb, + 0, + &FirstLboOfFile, + (PULONG)NULL, + NULL ); + + DebugTrace( 0, Dbg, "First Lbo of file will be %08lx.\n", FirstLboOfFile ); + + FcbOrDcb->FirstClusterOfFile = FatGetIndexFromLbo( Vcb, FirstLboOfFile ); + + Dirent->FirstClusterOfFile = (USHORT)FcbOrDcb->FirstClusterOfFile; + + if ( FatIsFat32(Vcb) ) { + + Dirent->FirstClusterOfFileHi = (USHORT)(FcbOrDcb->FirstClusterOfFile >> 16); + } + + // + // Note the size of the allocation we need to tell the cache manager about. + // + + NewAllocation = DesiredAllocationSize; + + } else { + + LBO LastAllocatedLbo; + VBO DontCare; + + // + // Get the first cluster following the current allocation. It is possible + // the Mcb is empty (or short, etc.) so we need to be slightly careful + // about making sure we don't lie with the hint. + // + + (void)FatLookupLastMcbEntry( FcbOrDcb->Vcb, &FcbOrDcb->Mcb, &DontCare, &LastAllocatedLbo, NULL ); + + // + // Try to get some disk space starting from there. + // + + NewAllocation = DesiredAllocationSize - FcbOrDcb->Header.AllocationSize.LowPart; + + FsRtlInitializeLargeMcb( &NewMcb, PagedPool ); + UnwindWeInitializedMcb = TRUE; + McbToCleanup = &NewMcb; + + FatAllocateDiskSpace( IrpContext, + Vcb, + (LastAllocatedLbo != ~0 ? + FatGetIndexFromLbo(Vcb,LastAllocatedLbo + 1) : + 0), + &NewAllocation, + FALSE, + &NewMcb ); + + UnwindWeAllocatedDiskSpace = TRUE; + } + + // + // Now that we increased the allocation of the file, mark it in the + // FcbOrDcb. Carefully prepare to handle an inability to grow the cache + // structures. + // + + FcbOrDcb->Header.AllocationSize.LowPart += NewAllocation; + + // + // Handle the maximal file case, where we may have just wrapped. Note + // that this must be the precise boundary case wrap, i.e. by one byte, + // so that the new allocation is actually one byte "less" as far as we're + // concerned. This is important for the extension case. + // + + if (FcbOrDcb->Header.AllocationSize.LowPart == 0) { + + NewAllocation -= 1; + FcbOrDcb->Header.AllocationSize.LowPart = 0xffffffff; + } + + UnwindAllocationSizeSet = TRUE; + + // + // Inform the cache manager to increase the section size + // + + if ( ARGUMENT_PRESENT(FileObject) && CcIsFileCached(FileObject) ) { + + CcSetFileSizes( FileObject, + (PCC_FILE_SIZES)&FcbOrDcb->Header.AllocationSize ); + UnwindCacheManagerInformed = TRUE; + } + + // + // In the extension case, we have held off actually gluing the new + // allocation onto the file. This simplifies exception cleanup since + // if it was already added and the section grow failed, we'd have to + // do extra work to unglue it. This way, we can assume that if we + // raise the only thing we need to do is deallocate the disk space. + // + // Merge the allocation now. + // + + if (FcbOrDcb->Header.AllocationSize.LowPart != NewAllocation) { + + // + // Tack the new Mcb onto the end of the FcbOrDcb one. + // + + FatMergeAllocation( IrpContext, + Vcb, + &FcbOrDcb->Mcb, + &NewMcb ); + } + + } _SEH2_FINALLY { + + DebugUnwind( FatAddFileAllocation ); + + // + // Give FlushFileBuffer a clue here. + // + + SetFlag(FcbOrDcb->FcbState, FCB_STATE_FLUSH_FAT); + + // + // If we were dogged trying to complete this operation, we need to go + // back various things out. + // + + if (_SEH2_AbnormalTermination()) { + + // + // Pull off the allocation size we tried to add to this object if + // we failed to grow cache structures or Mcb structures. + // + + if (UnwindAllocationSizeSet) { + + FcbOrDcb->Header.AllocationSize.LowPart -= NewAllocation; + } + + if (UnwindCacheManagerInformed) { + + CcSetFileSizes( FileObject, + (PCC_FILE_SIZES)&FcbOrDcb->Header.AllocationSize ); + } + + // + // In the case of initial allocation, we used the Fcb's Mcb and have + // to clean that up as well as the FAT chain references. + // + + if (FcbOrDcb->Header.AllocationSize.LowPart == 0) { + + if (Dirent != NULL) { + + FcbOrDcb->FirstClusterOfFile = 0; + Dirent->FirstClusterOfFile = 0; + + if ( FatIsFat32(Vcb) ) { + + Dirent->FirstClusterOfFileHi = 0; + } + } + } + + // + // ... and drop the dirent Bcb if we got it. Do it now + // so we can afford to take the exception if we have to. + // + + FatUnpinBcb( IrpContext, Bcb ); + + _SEH2_TRY { + + // + // Note this can re-raise. + // + + if ( UnwindWeAllocatedDiskSpace ) { + + FatDeallocateDiskSpace( IrpContext, Vcb, McbToCleanup ); + } + + } _SEH2_FINALLY { + + // + // We always want to clean up the non-initial allocation temporary Mcb, + // otherwise we have the Fcb's Mcb and we just truncate it away. + // + + if (UnwindWeInitializedMcb == TRUE) { + + // + // Note that we already know a raise is in progress. No danger + // of encountering the normal case code below and doing this again. + // + + FsRtlUninitializeLargeMcb( McbToCleanup ); + + } else { + + if (McbToCleanup) { + + FsRtlTruncateLargeMcb( McbToCleanup, 0 ); + } + } + } _SEH2_END; + } + + DebugTrace(-1, Dbg, "FatAddFileAllocation -> (VOID)\n", 0); + } _SEH2_END; + + // + // Non-exceptional cleanup we always want to do. In handling the re-raise possibilities + // during exceptions we had to make sure these two steps always happened there beforehand. + // So now we handle the usual case. + // + + FatUnpinBcb( IrpContext, Bcb ); + + if (UnwindWeInitializedMcb == TRUE) { + + FsRtlUninitializeLargeMcb( &NewMcb ); + } +} + + +VOID +FatTruncateFileAllocation ( + IN PIRP_CONTEXT IrpContext, + IN PFCB FcbOrDcb, + IN ULONG DesiredAllocationSize + ) + +/*++ + +Routine Description: + + This routine truncates the allocation to the specified file/directory. + + If the file is already smaller than the indicated size then this procedure + is effectively a noop. + + +Arguments: + + FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being modified + This parameter must not specify the root dcb. + + DesiredAllocationSize - Supplies the maximum size, in bytes, that we want + allocated to the file/directory. It is rounded + up to the nearest cluster. + +Return Value: + + VOID - TRUE if the operation completed and FALSE if it had to + block but could not. + +--*/ + +{ + PVCB Vcb; + PBCB Bcb = NULL; + LARGE_MCB RemainingMcb; + ULONG BytesPerCluster; + PDIRENT Dirent = NULL; + BOOLEAN UpdatedDirent = FALSE; + + ULONG UnwindInitialAllocationSize; + ULONG UnwindInitialFirstClusterOfFile; + BOOLEAN UnwindWeAllocatedMcb = FALSE; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatTruncateFileAllocation\n", 0); + DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); + DebugTrace( 0, Dbg, " DesiredAllocationSize = %8lx\n", DesiredAllocationSize); + + // + // If the Fcb isn't in good condition, we have no business whacking around on + // the disk after "its" clusters. + // + // Inspired by a Prefix complaint. + // + + ASSERT( FcbOrDcb->FcbCondition == FcbGood ); + + // + // If we haven't yet set the correct AllocationSize, do so. + // + + if (FcbOrDcb->Header.AllocationSize.QuadPart == FCB_LOOKUP_ALLOCATIONSIZE_HINT) { + + FatLookupFileAllocationSize( IrpContext, FcbOrDcb ); + } + + // + // Round up the Desired Allocation Size to the next cluster size + // + + Vcb = FcbOrDcb->Vcb; + + BytesPerCluster = 1 << Vcb->AllocationSupport.LogOfBytesPerCluster; + + // + // Note if the desired allocation is zero, to distinguish this from + // the wrap case below. + // + + if (DesiredAllocationSize != 0) { + + DesiredAllocationSize = (DesiredAllocationSize + (BytesPerCluster - 1)) & + ~(BytesPerCluster - 1); + // + // Check for the benign case that the file is already smaller than + // the desired truncation. Note that if it wraps, then a) it was + // specifying an offset in the maximally allocatable cluster and + // b) we're not asking to extend the file, either. So stop. + // + + if (DesiredAllocationSize == 0 || + DesiredAllocationSize >= FcbOrDcb->Header.AllocationSize.LowPart) { + + DebugTrace(0, Dbg, "Desired size within current allocation.\n", 0); + + DebugTrace(-1, Dbg, "FatTruncateFileAllocation -> (VOID)\n", 0); + return; + } + + } + + UnwindInitialAllocationSize = FcbOrDcb->Header.AllocationSize.LowPart; + UnwindInitialFirstClusterOfFile = FcbOrDcb->FirstClusterOfFile; + + // + // Update the FcbOrDcb allocation size. If it is now zero, we have the + // additional task of modifying the FcbOrDcb and Dirent copies of + // FirstClusterInFile. + // + // Note that we must pin the dirent before actually deallocating the + // disk space since, in unwind, it would not be possible to reallocate + // deallocated disk space as someone else may have reallocated it and + // may cause an exception when you try to get some more disk space. + // Thus FatDeallocateDiskSpace must be the final dangerous operation. + // + + _SEH2_TRY { + + FcbOrDcb->Header.AllocationSize.QuadPart = DesiredAllocationSize; + + // + // Special case 0 + // + + if (DesiredAllocationSize == 0) { + + // + // We have to update the dirent and FcbOrDcb copies of + // FirstClusterOfFile since before it was 0 + // + + ASSERT( FcbOrDcb->FcbCondition == FcbGood ); + + FatGetDirentFromFcbOrDcb( IrpContext, FcbOrDcb, &Dirent, &Bcb ); + + ASSERT( Dirent && Bcb ); + + Dirent->FirstClusterOfFile = 0; + + if (FatIsFat32(Vcb)) { + + Dirent->FirstClusterOfFileHi = 0; + } + + FcbOrDcb->FirstClusterOfFile = 0; + + FatSetDirtyBcb( IrpContext, Bcb, Vcb, TRUE ); + UpdatedDirent = TRUE; + + FatDeallocateDiskSpace( IrpContext, Vcb, &FcbOrDcb->Mcb ); + + FatRemoveMcbEntry( FcbOrDcb->Vcb, &FcbOrDcb->Mcb, 0, 0xFFFFFFFF ); + + } else { + + // + // Split the existing allocation into two parts, one we will keep, and + // one we will deallocate. + // + + FsRtlInitializeLargeMcb( &RemainingMcb, PagedPool ); + UnwindWeAllocatedMcb = TRUE; + + FatSplitAllocation( IrpContext, + Vcb, + &FcbOrDcb->Mcb, + DesiredAllocationSize, + &RemainingMcb ); + + FatDeallocateDiskSpace( IrpContext, Vcb, &RemainingMcb ); + + FsRtlUninitializeLargeMcb( &RemainingMcb ); + } + + } _SEH2_FINALLY { + + DebugUnwind( FatTruncateFileAllocation ); + + // + // Is this really the right backout strategy? It would be nice if we could + // pretend the truncate worked if we knew that the file had gotten into + // a consistent state. Leaving dangled clusters is probably quite preferable. + // + + if ( _SEH2_AbnormalTermination() ) { + + FcbOrDcb->Header.AllocationSize.LowPart = UnwindInitialAllocationSize; + + if ( (DesiredAllocationSize == 0) && (Dirent != NULL)) { + + if (UpdatedDirent) { + + // + // If the dirent has been updated ok and marked dirty, then we + // failed in deallocatediscspace, and don't know what state + // the on disc fat chain is in. So we throw away the mcb, + // and potentially loose a few clusters until the next + // chkdsk. The operation has succeeded, but the exception + // will still propogate. 5.1 + // + + FatRemoveMcbEntry( Vcb, &FcbOrDcb->Mcb, 0, 0xFFFFFFFF ); + FcbOrDcb->Header.AllocationSize.QuadPart = 0; + } + else { + + Dirent->FirstClusterOfFile = (USHORT)UnwindInitialFirstClusterOfFile; + + if ( FatIsFat32(Vcb) ) { + + Dirent->FirstClusterOfFileHi = + (USHORT)(UnwindInitialFirstClusterOfFile >> 16); + } + + FcbOrDcb->FirstClusterOfFile = UnwindInitialFirstClusterOfFile; + } + } + + if ( UnwindWeAllocatedMcb ) { + + FsRtlUninitializeLargeMcb( &RemainingMcb ); + } + + // + // Note that in the non zero truncation case, we will also + // leak clusters. However, apart from this, the in memory and on disc + // structures will agree. + } + + FatUnpinBcb( IrpContext, Bcb ); + + // + // Give FlushFileBuffer a clue here. + // + + SetFlag(FcbOrDcb->FcbState, FCB_STATE_FLUSH_FAT); + + DebugTrace(-1, Dbg, "FatTruncateFileAllocation -> (VOID)\n", 0); + } _SEH2_END; +} + + +VOID +FatLookupFileAllocationSize ( + IN PIRP_CONTEXT IrpContext, + IN PFCB FcbOrDcb + ) + +/*++ + +Routine Description: + + This routine retrieves the current file allocatio size for the + specified file/directory. + +Arguments: + + FcbOrDcb - Supplies the Fcb/Dcb of the file/directory being modified + +--*/ + +{ + LBO Lbo; + ULONG ByteCount; + BOOLEAN DontCare; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatLookupAllocationSize\n", 0); + DebugTrace( 0, Dbg, " FcbOrDcb = %8lx\n", FcbOrDcb); + + // + // We call FatLookupFileAllocation with Vbo of 0xffffffff - 1. + // + + FatLookupFileAllocation( IrpContext, + FcbOrDcb, + MAXULONG - 1, + &Lbo, + &ByteCount, + &DontCare, + &DontCare, + NULL ); + + // + // FileSize was set at Fcb creation time from the contents of the directory entry, + // and we are only now looking up the real length of the allocation chain. If it + // cannot be contained, this is trash. Probably more where that came from. + // + + if (FcbOrDcb->Header.FileSize.LowPart > FcbOrDcb->Header.AllocationSize.LowPart) { + + FatPopUpFileCorrupt( IrpContext, FcbOrDcb ); + FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); + } + + DebugTrace(-1, Dbg, "FatLookupFileAllocationSize -> (VOID)\n", 0); + return; +} + + +VOID +FatAllocateDiskSpace ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG AbsoluteClusterHint, + IN PULONG ByteCount, + IN BOOLEAN ExactMatchRequired, + OUT PLARGE_MCB Mcb + ) + +/*++ + +Routine Description: + + This procedure allocates additional disk space and builds an mcb + representing the newly allocated space. If the space cannot be + allocated then this procedure raises an appropriate status. + + Searching starts from the hint index in the Vcb unless an alternative + non-zero hint is given in AlternateClusterHint. If we are using the + hint field in the Vcb, it is set to the cluster following our allocation + when we are done. + + Disk space can only be allocated in cluster units so this procedure + will round up any byte count to the next cluster boundary. + + Pictorially what is done is the following (where ! denotes the end of + the fat chain (i.e., FAT_CLUSTER_LAST)): + + + Mcb (empty) + + becomes + + Mcb |--a--|--b--|--c--! + + ^ + ByteCount ----------+ + +Arguments: + + Vcb - Supplies the VCB being modified + + AbsoluteClusterHint - Supplies an alternate hint index to start the + search from. If this is zero we use, and update, + the Vcb hint field. + + ByteCount - Supplies the number of bytes that we are requesting, and + receives the number of bytes that we got. + + ExactMatchRequired - Caller should set this to TRUE if only the precise run requested + is acceptable. + + Mcb - Receives the MCB describing the newly allocated disk space. The + caller passes in an initialized Mcb that is filled in by this procedure. + + Return Value: + + TRUE - Allocated ok + FALSE - Failed to allocate exactly as requested (=> ExactMatchRequired was TRUE) + +--*/ + +{ + UCHAR LogOfBytesPerCluster; + ULONG BytesPerCluster; + ULONG StartingCluster; + ULONG ClusterCount; + ULONG WindowRelativeHint; +#if DBG +#ifndef __REACTOS__ + ULONG i; +#endif + ULONG PreviousClear; +#endif + + PFAT_WINDOW Window; + BOOLEAN Wait; + BOOLEAN Result = TRUE; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatAllocateDiskSpace\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " *ByteCount = %8lx\n", *ByteCount); + DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); + DebugTrace( 0, Dbg, " Hint = %8lx\n", AbsoluteClusterHint); + + ASSERT((AbsoluteClusterHint <= Vcb->AllocationSupport.NumberOfClusters + 2) && (1 != AbsoluteClusterHint)); + + // + // Make sure byte count is not zero + // + + if (*ByteCount == 0) { + + DebugTrace(0, Dbg, "Nothing to allocate.\n", 0); + + DebugTrace(-1, Dbg, "FatAllocateDiskSpace -> (VOID)\n", 0); + return; + } + + // + // Compute the cluster count based on the byte count, rounding up + // to the next cluster if there is any remainder. Note that the + // pathalogical case BytesCount == 0 has been eliminated above. + // + + LogOfBytesPerCluster = Vcb->AllocationSupport.LogOfBytesPerCluster; + BytesPerCluster = 1 << LogOfBytesPerCluster; + + *ByteCount = (*ByteCount + (BytesPerCluster - 1)) + & ~(BytesPerCluster - 1); + + // + // If ByteCount is NOW zero, then we were asked for the maximal + // filesize (or at least for bytes in the last allocatable sector). + // + + if (*ByteCount == 0) { + + *ByteCount = 0xffffffff; + ClusterCount = 1 << (32 - LogOfBytesPerCluster); + + } else { + + ClusterCount = (*ByteCount >> LogOfBytesPerCluster); + } + + // + // Make sure there are enough free clusters to start with, and + // take them now so that nobody else takes them from us. + // + + ExAcquireResourceSharedLite(&Vcb->ChangeBitMapResource, TRUE); + FatLockFreeClusterBitMap( Vcb ); + + if (ClusterCount <= Vcb->AllocationSupport.NumberOfFreeClusters) { + + Vcb->AllocationSupport.NumberOfFreeClusters -= ClusterCount; + + } else { + + FatUnlockFreeClusterBitMap( Vcb ); + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + + DebugTrace(0, Dbg, "Disk Full. Raise Status.\n", 0); + FatRaiseStatus( IrpContext, STATUS_DISK_FULL ); + } + + // + // Did the caller supply a hint? + // + + if ((0 != AbsoluteClusterHint) && (AbsoluteClusterHint < (Vcb->AllocationSupport.NumberOfClusters + 2))) { + + if (Vcb->NumberOfWindows > 1) { + + // + // If we're being called upon to allocate clusters outside the + // current window (which happens only via MoveFile), it's a problem. + // We address this by changing the current window to be the one which + // contains the alternate cluster hint. Note that if the user's + // request would cross a window boundary, he doesn't really get what + // he wanted. + // + + if (AbsoluteClusterHint < Vcb->CurrentWindow->FirstCluster || + AbsoluteClusterHint > Vcb->CurrentWindow->LastCluster) { + + ULONG BucketNum = FatWindowOfCluster( AbsoluteClusterHint ); + + ASSERT( BucketNum < Vcb->NumberOfWindows); + + // + // Drop our shared lock on the ChangeBitMapResource, and pick it up again + // exclusive in preparation for making the window swap. + // + + FatUnlockFreeClusterBitMap(Vcb); + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + ExAcquireResourceExclusiveLite(&Vcb->ChangeBitMapResource, TRUE); + FatLockFreeClusterBitMap(Vcb); + + Window = &Vcb->Windows[BucketNum]; + + // + // Again, test the current window against the one we want - some other + // thread could have sneaked in behind our backs and kindly set it to the one + // we need, when we dropped and reacquired the ChangeBitMapResource above. + // + + if (Window != Vcb->CurrentWindow) { + + _SEH2_TRY { + + Wait = BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); + SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); + + // + // Change to the new window (update Vcb->CurrentWindow) and scan it + // to build up a freespace bitmap etc. + // + + FatExamineFatEntries( IrpContext, Vcb, + 0, + 0, + FALSE, + Window, + NULL); + + } _SEH2_FINALLY { + + if (!Wait) { + + ClearFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); + } + + if (_SEH2_AbnormalTermination()) { + + // + // We will have raised as a result of failing to pick up the + // chunk of the FAT for this window move. Release our resources + // and return the cluster count to the volume. + // + + Vcb->AllocationSupport.NumberOfFreeClusters += ClusterCount; + + FatUnlockFreeClusterBitMap( Vcb ); + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + } + } _SEH2_END; + } + } + + // + // Make the hint cluster number relative to the base of the current window... + // + // Currentwindow->Firstcluster is baised by +2 already, so we will lose the + // bias already in AbsoluteClusterHint. Put it back.... + // + + WindowRelativeHint = AbsoluteClusterHint - Vcb->CurrentWindow->FirstCluster + 2; + } + else { + + // + // Only one 'window', ie fat16/12. No modification necessary. + // + + WindowRelativeHint = AbsoluteClusterHint; + } + } + else { + + // + // Either no hint supplied, or it was out of range, so grab one from the Vcb + // + // NOTE: Clusterhint in the Vcb is not guaranteed to be set (may be -1) + // + + WindowRelativeHint = Vcb->ClusterHint; + AbsoluteClusterHint = 0; + + // + // Vcb hint may not have been initialized yet. Force to valid cluster. + // + + if (-1 == WindowRelativeHint) { + + WindowRelativeHint = 2; + } + } + + ASSERT((WindowRelativeHint >= 2) && (WindowRelativeHint < Vcb->FreeClusterBitMap.SizeOfBitMap + 2)); + + // + // Keep track of the window we're allocating from, so we can clean + // up correctly if the current window changes after we unlock the + // bitmap. + // + + Window = Vcb->CurrentWindow; + + // + // Try to find a run of free clusters large enough for us. + // + + StartingCluster = FatFindFreeClusterRun( IrpContext, + Vcb, + ClusterCount, + WindowRelativeHint ); + // + // If the above call was successful, we can just update the fat + // and Mcb and exit. Otherwise we have to look for smaller free + // runs. + // + // This test is a bit funky. Note that the error return from + // RtlFindClearBits is -1, and adding two to that is 1. + // + + if ((StartingCluster != 1) && + ((0 == AbsoluteClusterHint) || (StartingCluster == WindowRelativeHint)) + ) { + +#if DBG + PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); +#endif // DBG + + // + // Take the clusters we found, and unlock the bit map. + // + + FatReserveClusters(IrpContext, Vcb, StartingCluster, ClusterCount); + + Window->ClustersFree -= ClusterCount; + + StartingCluster += Window->FirstCluster; + StartingCluster -= 2; + + ASSERT( PreviousClear - ClusterCount == Window->ClustersFree ); + + FatUnlockFreeClusterBitMap( Vcb ); + + // + // Note that this call will never fail since there is always + // room for one entry in an empty Mcb. + // + + FatAddMcbEntry( Vcb, Mcb, + 0, + FatGetLboFromIndex( Vcb, StartingCluster ), + *ByteCount); + _SEH2_TRY { + + // + // Update the fat. + // + + FatAllocateClusters(IrpContext, Vcb, + StartingCluster, + ClusterCount); + + } _SEH2_FINALLY { + + DebugUnwind( FatAllocateDiskSpace ); + + // + // If the allocate clusters failed, remove the run from the Mcb, + // unreserve the clusters, and reset the free cluster count. + // + + if (_SEH2_AbnormalTermination()) { + + FatRemoveMcbEntry( Vcb, Mcb, 0, *ByteCount ); + + FatLockFreeClusterBitMap( Vcb ); + + // Only clear bits if the bitmap window is the same. + + if (Window == Vcb->CurrentWindow) { + + // Both values (startingcluster and window->firstcluster) are + // already biased by 2, so will cancel, so we need to add in the 2 again. + + FatUnreserveClusters( IrpContext, Vcb, + StartingCluster - Window->FirstCluster + 2, + ClusterCount ); + } + + Window->ClustersFree += ClusterCount; + Vcb->AllocationSupport.NumberOfFreeClusters += ClusterCount; + + FatUnlockFreeClusterBitMap( Vcb ); + } + + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + } _SEH2_END; + + } else { + + // + // Note that Index is a zero-based window-relative number. When appropriate + // it'll get converted into a true cluster number and put in Cluster, which + // will be a volume relative true cluster number. + // + + ULONG Index; + ULONG Cluster; + ULONG CurrentVbo; + ULONG PriorLastCluster; + ULONG BytesFound; + + ULONG ClustersFound = 0; + ULONG ClustersRemaining; + + BOOLEAN LockedBitMap = FALSE; + BOOLEAN SelectNextContigWindow = FALSE; + + // + // Drop our shared lock on the ChangeBitMapResource, and pick it up again + // exclusive in preparation for making a window swap. + // + + FatUnlockFreeClusterBitMap(Vcb); + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + ExAcquireResourceExclusiveLite(&Vcb->ChangeBitMapResource, TRUE); + FatLockFreeClusterBitMap(Vcb); + LockedBitMap = TRUE; + + _SEH2_TRY { + + if ( ExactMatchRequired && (1 == Vcb->NumberOfWindows)) { + + // + // Give up right now, there are no more windows to search! RtlFindClearBits + // searchs the whole bitmap, so we would have found any contiguous run + // large enough. + // + + try_leave( Result = FALSE); + } + + // + // While the request is still incomplete, look for the largest + // run of free clusters, mark them taken, allocate the run in + // the Mcb and Fat, and if this isn't the first time through + // the loop link it to prior run on the fat. The Mcb will + // coalesce automatically. + // + + ClustersRemaining = ClusterCount; + CurrentVbo = 0; + PriorLastCluster = 0; + + while (ClustersRemaining != 0) { + + // + // If we just entered the loop, the bit map is already locked + // + + if ( !LockedBitMap ) { + + FatLockFreeClusterBitMap( Vcb ); + LockedBitMap = TRUE; + } + + // + // Find the largest run of free clusters. If the run is + // bigger than we need, only use what we need. Note that + // this will then be the last while() iteration. + // + + // 12/3/95: need to bias bitmap by 2 bits for the defrag + // hooks and the below macro became impossible to do without in-line + // procedures. + // + // ClustersFound = FatLongestFreeClusterRun( IrpContext, Vcb, &Index ); + + ClustersFound = 0; + + if (!SelectNextContigWindow) { + + if ( 0 != WindowRelativeHint) { + + ULONG Desired = Vcb->FreeClusterBitMap.SizeOfBitMap - (WindowRelativeHint - 2); + + // + // We will try to allocate contiguously. Try from the current hint the to + // end of current window. Don't try for more than we actually need. + // + + if (Desired > ClustersRemaining) { + + Desired = ClustersRemaining; + } + + if (RtlAreBitsClear( &Vcb->FreeClusterBitMap, + WindowRelativeHint - 2, + Desired)) + { + // + // Clusters from hint->...windowend are free. Take them. + // + + Index = WindowRelativeHint - 2; + ClustersFound = Desired; + + if (FatIsFat32(Vcb)) { + + // + // We're now up against the end of the current window, so indicate that we + // want the next window in the sequence next time around. (If we're not up + // against the end of the window, then we got what we needed and won't be + // coming around again anyway). + // + + SelectNextContigWindow = TRUE; + WindowRelativeHint = 2; + } + else { + + // + // FAT 12/16 - we've run up against the end of the volume. Clear the + // hint, since we now have no idea where to look. + // + + WindowRelativeHint = 0; + } +#if DBG + PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); +#endif // DBG + } + else { + + if (ExactMatchRequired) { + + // + // If our caller required an exact match, then we're hosed. Bail out now. + // + + try_leave( Result = FALSE); + } + + // + // Hint failed, drop back to pot luck + // + + WindowRelativeHint = 0; + } + } + + if ((0 == WindowRelativeHint) && (0 == ClustersFound)) { + + if (ClustersRemaining <= Vcb->CurrentWindow->ClustersFree) { + + // + // The remaining allocation could be satisfied entirely from this + // window. We will ask only for what we need, to try and avoid + // unnecessarily fragmenting large runs of space by always using + // (part of) the largest run we can find. This call will return the + // first run large enough. + // + + Index = RtlFindClearBits( &Vcb->FreeClusterBitMap, ClustersRemaining, 0); + + if (-1 != Index) { + + ClustersFound = ClustersRemaining; + } + } + + if (0 == ClustersFound) { + + // + // Still nothing, so just take the largest free run we can find. + // + + ClustersFound = RtlFindLongestRunClear( &Vcb->FreeClusterBitMap, &Index ); + + } +#if DBG + PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); +#endif // DBG + if (ClustersFound >= ClustersRemaining) { + + ClustersFound = ClustersRemaining; + } + else { + + // + // If we just ran up to the end of a window, set up a hint that + // we'd like the next consecutive window after this one. (FAT32 only) + // + + if ( ((Index + ClustersFound) == Vcb->FreeClusterBitMap.SizeOfBitMap) && + FatIsFat32( Vcb) + ) { + + SelectNextContigWindow = TRUE; + WindowRelativeHint = 2; + } + } + } + } + + if (ClustersFound == 0) { + + ULONG FaveWindow = 0; + BOOLEAN SelectedWindow; + + // + // If we found no free clusters on a single-window FAT, + // there was a bad problem with the free cluster count. + // + + if (1 == Vcb->NumberOfWindows) { + + FatBugCheck( 0, 5, 0 ); + } + + // + // Switch to a new bucket. Possibly the next one if we're + // currently on a roll (allocating contiguously) + // + + SelectedWindow = FALSE; + + if ( SelectNextContigWindow) { + + ULONG NextWindow; + + NextWindow = (((ULONG)((PUCHAR)Vcb->CurrentWindow - (PUCHAR)Vcb->Windows)) / sizeof( FAT_WINDOW)) + 1; + + if ((NextWindow < Vcb->NumberOfWindows) && + ( Vcb->Windows[ NextWindow].ClustersFree > 0) + ) { + + FaveWindow = NextWindow; + SelectedWindow = TRUE; + } + else { + + if (ExactMatchRequired) { + + // + // Some dope tried to allocate a run past the end of the volume... + // + + try_leave( Result = FALSE); + } + + // + // Give up on the contiguous allocation attempts + // + + WindowRelativeHint = 0; + } + + SelectNextContigWindow = FALSE; + } + + if (!SelectedWindow) { + + // + // Select a new window to begin allocating from + // + + FaveWindow = FatSelectBestWindow( Vcb); + } + + // + // By now we'd better have found a window with some free clusters + // + + if (0 == Vcb->Windows[ FaveWindow].ClustersFree) { + + FatBugCheck( 0, 5, 1 ); + } + + Wait = BooleanFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); + SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); + + FatExamineFatEntries( IrpContext, Vcb, + 0, + 0, + FALSE, + &Vcb->Windows[FaveWindow], + NULL); + + if (!Wait) { + + ClearFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT); + } + + // + // Now we'll just go around the loop again, having switched windows, + // and allocate.... + // +#if DBG + PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); +#endif //DBG + } // if (clustersfound == 0) + else { + + // + // Take the clusters we found, convert our index to a cluster number + // and unlock the bit map. + // + + Window = Vcb->CurrentWindow; + + FatReserveClusters( IrpContext, Vcb, (Index + 2), ClustersFound ); + + Cluster = Index + Window->FirstCluster; + + Window->ClustersFree -= ClustersFound; + ASSERT( PreviousClear - ClustersFound == Window->ClustersFree ); + + FatUnlockFreeClusterBitMap( Vcb ); + LockedBitMap = FALSE; + + // + // Add the newly alloced run to the Mcb. + // + + BytesFound = ClustersFound << LogOfBytesPerCluster; + + FatAddMcbEntry( Vcb, Mcb, + CurrentVbo, + FatGetLboFromIndex( Vcb, Cluster ), + BytesFound ); + + // + // Connect the last allocated run with this one, and allocate + // this run on the Fat. + // + + if (PriorLastCluster != 0) { + + FatSetFatEntry( IrpContext, + Vcb, + PriorLastCluster, + (FAT_ENTRY)Cluster ); + } + + // + // Update the fat + // + + FatAllocateClusters( IrpContext, Vcb, Cluster, ClustersFound ); + + // + // Prepare for the next iteration. + // + + CurrentVbo += BytesFound; + ClustersRemaining -= ClustersFound; + PriorLastCluster = Cluster + ClustersFound - 1; + } + } // while (clustersremaining) + + } _SEH2_FINALLY { + + DebugUnwind( FatAllocateDiskSpace ); + + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + + // + // Is there any unwinding to do? + // + + if ( _SEH2_AbnormalTermination() || (FALSE == Result)) { + + // + // Flag to the caller that they're getting nothing + // + + *ByteCount = 0; + + // + // There are three places we could have taken this exception: + // when switching the window (FatExamineFatEntries), adding + // a found run to the Mcb (FatAddMcbEntry), or when writing + // the changes to the FAT (FatSetFatEntry). In the first case + // we don't have anything to unwind before deallocation, and + // can detect this by seeing if we have the ClusterBitmap + // mutex out. + + if (!LockedBitMap) { + + FatLockFreeClusterBitMap( Vcb ); + + // + // In these cases, we have the possiblity that the FAT + // window is still in place and we need to clear the bits. + // If the Mcb entry isn't there (we raised trying to add + // it), the effect of trying to remove it is a noop. + // + + if (Window == Vcb->CurrentWindow) { + + // + // Cluster reservation works on cluster 2 based window-relative + // numbers, so we must convert. The subtraction will lose the + // cluster 2 base, so bias the result. + // + + FatUnreserveClusters( IrpContext, Vcb, + (Cluster - Window->FirstCluster) + 2, + ClustersFound ); + } + + // + // Note that FatDeallocateDiskSpace will take care of adjusting + // to account for the entries in the Mcb. All we have to account + // for is the last run that didn't make it. + // + + Window->ClustersFree += ClustersFound; + Vcb->AllocationSupport.NumberOfFreeClusters += ClustersFound; + + FatUnlockFreeClusterBitMap( Vcb ); + + FatRemoveMcbEntry( Vcb, Mcb, CurrentVbo, BytesFound ); + + } else { + + // + // Just drop the mutex now - we didn't manage to do anything + // that needs to be backed out. + // + + FatUnlockFreeClusterBitMap( Vcb ); + } + + _SEH2_TRY { + + // + // Now we have tidied up, we are ready to just send the Mcb + // off to deallocate disk space + // + + FatDeallocateDiskSpace( IrpContext, Vcb, Mcb ); + + } _SEH2_FINALLY { + + // + // Now finally (really), remove all the entries from the mcb + // + + FatRemoveMcbEntry( Vcb, Mcb, 0, 0xFFFFFFFF ); + } _SEH2_END; + } + + DebugTrace(-1, Dbg, "FatAllocateDiskSpace -> (VOID)\n", 0); + + } _SEH2_END; // finally + } + + return; +} + + +VOID +FatDeallocateDiskSpace ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN PLARGE_MCB Mcb + ) + +/*++ + +Routine Description: + + This procedure deallocates the disk space denoted by an input + mcb. Note that the input MCB does not need to necessarily describe + a chain that ends with a FAT_CLUSTER_LAST entry. + + Pictorially what is done is the following + + Fat |--a--|--b--|--c--| + Mcb |--a--|--b--|--c--| + + becomes + + Fat |--0--|--0--|--0--| + Mcb |--a--|--b--|--c--| + +Arguments: + + Vcb - Supplies the VCB being modified + + Mcb - Supplies the MCB describing the disk space to deallocate. Note + that Mcb is unchanged by this procedure. + + +Return Value: + + None. + +--*/ + +{ + LBO Lbo; + VBO Vbo; + + ULONG RunsInMcb; + ULONG ByteCount; + ULONG ClusterCount; + ULONG ClusterIndex; + ULONG McbIndex; + + UCHAR LogOfBytesPerCluster; + + PFAT_WINDOW Window; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatDeallocateDiskSpace\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); + + LogOfBytesPerCluster = Vcb->AllocationSupport.LogOfBytesPerCluster; + + RunsInMcb = FsRtlNumberOfRunsInLargeMcb( Mcb ); + + if ( RunsInMcb == 0 ) { + + DebugTrace(-1, Dbg, "FatDeallocateDiskSpace -> (VOID)\n", 0); + return; + } + + _SEH2_TRY { + + // + // Run though the Mcb, freeing all the runs in the fat. + // + // We do this in two steps (first update the fat, then the bitmap + // (which can't fail)) to prevent other people from taking clusters + // that we need to re-allocate in the event of unwind. + // + + ExAcquireResourceSharedLite(&Vcb->ChangeBitMapResource, TRUE); + + RunsInMcb = FsRtlNumberOfRunsInLargeMcb( Mcb ); + + for ( McbIndex = 0; McbIndex < RunsInMcb; McbIndex++ ) { + + FatGetNextMcbEntry( Vcb, Mcb, McbIndex, &Vbo, &Lbo, &ByteCount ); + + // + // Assert that Fat files have no holes. + // + + ASSERT( Lbo != 0 ); + + // + // Write FAT_CLUSTER_AVAILABLE to each cluster in the run. + // + + ClusterCount = ByteCount >> LogOfBytesPerCluster; + ClusterIndex = FatGetIndexFromLbo( Vcb, Lbo ); + + FatFreeClusters( IrpContext, Vcb, ClusterIndex, ClusterCount ); + } + + // + // From now on, nothing can go wrong .... (as in raise) + // + + FatLockFreeClusterBitMap( Vcb ); + + for ( McbIndex = 0; McbIndex < RunsInMcb; McbIndex++ ) { + + ULONG ClusterEnd; + ULONG MyStart, MyLength, count; +#if DBG +#ifndef __REACTOS__ + ULONG PreviousClear, i; +#else + ULONG i; +#endif +#endif + + FatGetNextMcbEntry( Vcb, Mcb, McbIndex, &Vbo, &Lbo, &ByteCount ); + + // + // Mark the bits clear in the FreeClusterBitMap. + // + + ClusterCount = ByteCount >> LogOfBytesPerCluster; + ClusterIndex = FatGetIndexFromLbo( Vcb, Lbo ); + + Window = Vcb->CurrentWindow; + + // + // If we've divided the bitmap, elide bitmap manipulation for + // runs that are outside the current bucket. + // + + ClusterEnd = ClusterIndex + ClusterCount - 1; + + if (!(ClusterIndex > Window->LastCluster || + ClusterEnd < Window->FirstCluster)) { + + // + // The run being freed overlaps the current bucket, so we'll + // have to clear some bits. + // + + if (ClusterIndex < Window->FirstCluster && + ClusterEnd > Window->LastCluster) { + + MyStart = Window->FirstCluster; + MyLength = Window->LastCluster - Window->FirstCluster + 1; + + } else if (ClusterIndex < Window->FirstCluster) { + + MyStart = Window->FirstCluster; + MyLength = ClusterEnd - Window->FirstCluster + 1; + + } else { + + // + // The range being freed starts in the bucket, and may possibly + // extend beyond the bucket. + // + + MyStart = ClusterIndex; + + if (ClusterEnd <= Window->LastCluster) { + + MyLength = ClusterCount; + + } else { + + MyLength = Window->LastCluster - ClusterIndex + 1; + } + } + + if (MyLength == 0) { + + continue; + } + +#if DBG +#ifndef __REACTOS__ + PreviousClear = RtlNumberOfClearBits( &Vcb->FreeClusterBitMap ); +#endif + + + // + // Verify that the Bits are all really set. + // + + ASSERT( MyStart + MyLength - Window->FirstCluster <= Vcb->FreeClusterBitMap.SizeOfBitMap ); + + for (i = 0; i < MyLength; i++) { + + ASSERT( RtlCheckBit(&Vcb->FreeClusterBitMap, + MyStart - Window->FirstCluster + i) == 1 ); + } +#endif // DBG + + FatUnreserveClusters( IrpContext, Vcb, + MyStart - Window->FirstCluster + 2, + MyLength ); + } + + // + // Adjust the ClustersFree count for each bitmap window, even the ones + // that are not the current window. + // + + if (FatIsFat32(Vcb)) { + + Window = &Vcb->Windows[FatWindowOfCluster( ClusterIndex )]; + + } else { + + Window = &Vcb->Windows[0]; + } + + MyStart = ClusterIndex; + + for (MyLength = ClusterCount; MyLength > 0; MyLength -= count) { + + count = FatMin(Window->LastCluster - MyStart + 1, MyLength); + Window->ClustersFree += count; + + // + // If this was not the last window this allocation spanned, + // advance to the next. + // + + if (MyLength != count) { + + Window++; + MyStart = Window->FirstCluster; + } + } + + // + // Deallocation is now complete. Adjust the free cluster count. + // + + Vcb->AllocationSupport.NumberOfFreeClusters += ClusterCount; + } + +#if DBG + if (Vcb->CurrentWindow->ClustersFree != + RtlNumberOfClearBits(&Vcb->FreeClusterBitMap)) { + + DbgPrint("%x vs %x\n", Vcb->CurrentWindow->ClustersFree, + RtlNumberOfClearBits(&Vcb->FreeClusterBitMap)); + + DbgPrint("%x for %x\n", ClusterIndex, ClusterCount); + } +#endif + + FatUnlockFreeClusterBitMap( Vcb ); + + + } _SEH2_FINALLY { + + DebugUnwind( FatDeallocateDiskSpace ); + + // + // Is there any unwinding to do? + // + + ExReleaseResourceLite(&Vcb->ChangeBitMapResource); + + if ( _SEH2_AbnormalTermination() ) { + + LBO Lbo; + VBO Vbo; + + ULONG Index; + ULONG Clusters; + ULONG FatIndex; + ULONG PriorLastIndex; + + // + // For each entry we already deallocated, reallocate it, + // chaining together as nessecary. Note that we continue + // up to and including the last "for" iteration even though + // the SetFatRun could not have been successful. This + // allows us a convienent way to re-link the final successful + // SetFatRun. + // + // It is possible that the reason we got here will prevent us + // from succeeding in this operation. + // + + PriorLastIndex = 0; + + for (Index = 0; Index <= McbIndex; Index++) { + + FatGetNextMcbEntry(Vcb, Mcb, Index, &Vbo, &Lbo, &ByteCount); + + FatIndex = FatGetIndexFromLbo( Vcb, Lbo ); + Clusters = ByteCount >> LogOfBytesPerCluster; + + // + // We must always restore the prior iteration's last + // entry, pointing it to the first cluster of this run. + // + + if (PriorLastIndex != 0) { + + FatSetFatEntry( IrpContext, + Vcb, + PriorLastIndex, + (FAT_ENTRY)FatIndex ); + } + + // + // If this is not the last entry (the one that failed) + // then reallocate the disk space on the fat. + // + + if ( Index < McbIndex ) { + + FatAllocateClusters(IrpContext, Vcb, FatIndex, Clusters); + + PriorLastIndex = FatIndex + Clusters - 1; + } + } + } + + DebugTrace(-1, Dbg, "FatDeallocateDiskSpace -> (VOID)\n", 0); + } _SEH2_END; + + return; +} + + +VOID +FatSplitAllocation ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN OUT PLARGE_MCB Mcb, + IN VBO SplitAtVbo, + OUT PLARGE_MCB RemainingMcb + ) + +/*++ + +Routine Description: + + This procedure takes a single mcb and splits its allocation into + two separate allocation units. The separation must only be done + on cluster boundaries, otherwise we bugcheck. + + On the disk this actually works by inserting a FAT_CLUSTER_LAST into + the last index of the first part being split out. + + Pictorially what is done is the following (where ! denotes the end of + the fat chain (i.e., FAT_CLUSTER_LAST)): + + + Mcb |--a--|--b--|--c--|--d--|--e--|--f--| + + ^ + SplitAtVbo ---------------------+ + + RemainingMcb (empty) + + becomes + + Mcb |--a--|--b--|--c--! + + + RemainingMcb |--d--|--e--|--f--| + +Arguments: + + Vcb - Supplies the VCB being modified + + Mcb - Supplies the MCB describing the allocation being split into + two parts. Upon return this Mcb now contains the first chain. + + SplitAtVbo - Supplies the VBO of the first byte for the second chain + that we creating. + + RemainingMcb - Receives the MCB describing the second chain of allocated + disk space. The caller passes in an initialized Mcb that + is filled in by this procedure STARTING AT VBO 0. + +Return Value: + + VOID - TRUE if the operation completed and FALSE if it had to + block but could not. + +--*/ + +{ + VBO SourceVbo; + VBO TargetVbo; + VBO DontCare; + + LBO Lbo; + + ULONG ByteCount; + ULONG BytesPerCluster; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatSplitAllocation\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); + DebugTrace( 0, Dbg, " SplitAtVbo = %8lx\n", SplitAtVbo); + DebugTrace( 0, Dbg, " RemainingMcb = %8lx\n", RemainingMcb); + + BytesPerCluster = 1 << Vcb->AllocationSupport.LogOfBytesPerCluster; + + // + // Assert that the split point is cluster alligned + // + + ASSERT( (SplitAtVbo & (BytesPerCluster - 1)) == 0 ); + + // + // We should never be handed an empty source MCB and asked to split + // at a non zero point. + // + + ASSERT( !((0 != SplitAtVbo) && (0 == FsRtlNumberOfRunsInLargeMcb( Mcb)))); + + // + // Assert we were given an empty target Mcb. + // + + // + // This assert is commented out to avoid hitting in the Ea error + // path. In that case we will be using the same Mcb's to split the + // allocation that we used to merge them. The target Mcb will contain + // the runs that the split will attempt to insert. + // + // + // ASSERT( FsRtlNumberOfRunsInMcb( RemainingMcb ) == 0 ); + // + + _SEH2_TRY { + + // + // Move the runs after SplitAtVbo from the souce to the target + // + + SourceVbo = SplitAtVbo; + TargetVbo = 0; + + while (FatLookupMcbEntry(Vcb, Mcb, SourceVbo, &Lbo, &ByteCount, NULL)) { + + FatAddMcbEntry( Vcb, RemainingMcb, TargetVbo, Lbo, ByteCount ); + + FatRemoveMcbEntry( Vcb, Mcb, SourceVbo, ByteCount ); + + TargetVbo += ByteCount; + SourceVbo += ByteCount; + + // + // If SourceVbo overflows, we were actually snipping off the end + // of the maximal file ... and are now done. + // + + if (SourceVbo == 0) { + + break; + } + } + + // + // Mark the last pre-split cluster as a FAT_LAST_CLUSTER + // + + if ( SplitAtVbo != 0 ) { + + FatLookupLastMcbEntry( Vcb, Mcb, &DontCare, &Lbo, NULL ); + + FatSetFatEntry( IrpContext, + Vcb, + FatGetIndexFromLbo( Vcb, Lbo ), + FAT_CLUSTER_LAST ); + } + + } _SEH2_FINALLY { + + DebugUnwind( FatSplitAllocation ); + + // + // If we got an exception, we must glue back together the Mcbs + // + + if ( _SEH2_AbnormalTermination() ) { + + TargetVbo = SplitAtVbo; + SourceVbo = 0; + + while (FatLookupMcbEntry(Vcb, RemainingMcb, SourceVbo, &Lbo, &ByteCount, NULL)) { + + FatAddMcbEntry( Vcb, Mcb, TargetVbo, Lbo, ByteCount ); + + FatRemoveMcbEntry( Vcb, RemainingMcb, SourceVbo, ByteCount ); + + TargetVbo += ByteCount; + SourceVbo += ByteCount; + } + } + + DebugTrace(-1, Dbg, "FatSplitAllocation -> (VOID)\n", 0); + } _SEH2_END; + + return; +} + + +VOID +FatMergeAllocation ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN OUT PLARGE_MCB Mcb, + IN PLARGE_MCB SecondMcb + ) + +/*++ + +Routine Description: + + This routine takes two separate allocations described by two MCBs and + joins them together into one allocation. + + Pictorially what is done is the following (where ! denotes the end of + the fat chain (i.e., FAT_CLUSTER_LAST)): + + + Mcb |--a--|--b--|--c--! + + SecondMcb |--d--|--e--|--f--| + + becomes + + Mcb |--a--|--b--|--c--|--d--|--e--|--f--| + + SecondMcb |--d--|--e--|--f--| + + +Arguments: + + Vcb - Supplies the VCB being modified + + Mcb - Supplies the MCB of the first allocation that is being modified. + Upon return this Mcb will also describe the newly enlarged + allocation + + SecondMcb - Supplies the ZERO VBO BASED MCB of the second allocation + that is being appended to the first allocation. This + procedure leaves SecondMcb unchanged. + +Return Value: + + VOID - TRUE if the operation completed and FALSE if it had to + block but could not. + +--*/ + +{ + VBO SpliceVbo; + LBO SpliceLbo; + + VBO SourceVbo; + VBO TargetVbo; + + LBO Lbo; + + ULONG ByteCount; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatMergeAllocation\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " Mcb = %8lx\n", Mcb); + DebugTrace( 0, Dbg, " SecondMcb = %8lx\n", SecondMcb); + + _SEH2_TRY { + + // + // Append the runs from SecondMcb to Mcb + // + + (void)FatLookupLastMcbEntry( Vcb, Mcb, &SpliceVbo, &SpliceLbo, NULL ); + + SourceVbo = 0; + TargetVbo = SpliceVbo + 1; + + while (FatLookupMcbEntry(Vcb, SecondMcb, SourceVbo, &Lbo, &ByteCount, NULL)) { + + FatAddMcbEntry( Vcb, Mcb, TargetVbo, Lbo, ByteCount ); + + SourceVbo += ByteCount; + TargetVbo += ByteCount; + } + + // + // Link the last pre-merge cluster to the first cluster of SecondMcb + // + + FatLookupMcbEntry( Vcb, SecondMcb, 0, &Lbo, (PULONG)NULL, NULL ); + + FatSetFatEntry( IrpContext, + Vcb, + FatGetIndexFromLbo( Vcb, SpliceLbo ), + (FAT_ENTRY)FatGetIndexFromLbo( Vcb, Lbo ) ); + + } _SEH2_FINALLY { + + DebugUnwind( FatMergeAllocation ); + + // + // If we got an exception, we must remove the runs added to Mcb + // + + if ( _SEH2_AbnormalTermination() ) { + + ULONG CutLength; + + if ((CutLength = TargetVbo - (SpliceVbo + 1)) != 0) { + + FatRemoveMcbEntry( Vcb, Mcb, SpliceVbo + 1, CutLength); + } + } + + DebugTrace(-1, Dbg, "FatMergeAllocation -> (VOID)\n", 0); + } _SEH2_END; + + return; +} + + +// +// Internal support routine +// + +CLUSTER_TYPE +FatInterpretClusterType ( + IN PVCB Vcb, + IN FAT_ENTRY Entry + ) + +/*++ + +Routine Description: + + This procedure tells the caller how to interpret the input fat table + entry. It will indicate if the fat cluster is available, resereved, + bad, the last one, or the another fat index. This procedure can deal + with both 12 and 16 bit fat. + +Arguments: + + Vcb - Supplies the Vcb to examine, yields 12/16 bit info + + Entry - Supplies the fat entry to examine + +Return Value: + + CLUSTER_TYPE - Is the type of the input Fat entry + +--*/ + +{ + DebugTrace(+1, Dbg, "InterpretClusterType\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " Entry = %8lx\n", Entry); + + PAGED_CODE(); + + switch(Vcb->AllocationSupport.FatIndexBitSize ) { + case 32: + Entry &= FAT32_ENTRY_MASK; + break; + + case 12: + ASSERT( Entry <= 0xfff ); + if (Entry >= 0x0ff0) { + Entry |= 0x0FFFF000; + } + break; + + default: + case 16: + ASSERT( Entry <= 0xffff ); + if (Entry >= 0x0fff0) { + Entry |= 0x0FFF0000; + } + break; + } + + if (Entry == FAT_CLUSTER_AVAILABLE) { + + DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterAvailable\n", 0); + + return FatClusterAvailable; + + } else if (Entry < FAT_CLUSTER_RESERVED) { + + DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterNext\n", 0); + + return FatClusterNext; + + } else if (Entry < FAT_CLUSTER_BAD) { + + DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterReserved\n", 0); + + return FatClusterReserved; + + } else if (Entry == FAT_CLUSTER_BAD) { + + DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterBad\n", 0); + + return FatClusterBad; + + } else { + + DebugTrace(-1, Dbg, "FatInterpretClusterType -> FatClusterLast\n", 0); + + return FatClusterLast; + } +} + + +// +// Internal support routine +// + +VOID +FatLookupFatEntry ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG FatIndex, + IN OUT PULONG FatEntry, + IN OUT PFAT_ENUMERATION_CONTEXT Context + ) + +/*++ + +Routine Description: + + This routine takes an index into the fat and gives back the value + in the Fat at this index. At any given time, for a 16 bit fat, this + routine allows only one page per volume of the fat to be pinned in + memory. For a 12 bit bit fat, the entire fat (max 6k) is pinned. This + extra layer of caching makes the vast majority of requests very + fast. The context for this caching stored in a structure in the Vcb. + +Arguments: + + Vcb - Supplies the Vcb to examine, yields 12/16 bit info, + fat access context, etc. + + FatIndex - Supplies the fat index to examine. + + FatEntry - Receives the fat entry pointed to by FatIndex. Note that + it must point to non-paged pool. + + Context - This structure keeps track of a page of pinned fat between calls. + +--*/ + +{ + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatLookupFatEntry\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " FatIndex = %4x\n", FatIndex); + DebugTrace( 0, Dbg, " FatEntry = %8lx\n", FatEntry); + + // + // Make sure they gave us a valid fat index. + // + + FatVerifyIndexIsValid(IrpContext, Vcb, FatIndex); + + // + // Case on 12 or 16 bit fats. + // + // In the 12 bit case (mostly floppies) we always have the whole fat + // (max 6k bytes) pinned during allocation operations. This is possibly + // a wee bit slower, but saves headaches over fat entries with 8 bits + // on one page, and 4 bits on the next. + // + // The 16 bit case always keeps the last used page pinned until all + // operations are done and it is unpinned. + // + + // + // DEAL WITH 12 BIT CASE + // + + if (Vcb->AllocationSupport.FatIndexBitSize == 12) { + + // + // Check to see if the fat is already pinned, otherwise pin it. + // + + if (Context->Bcb == NULL) { + + FatReadVolumeFile( IrpContext, + Vcb, + FatReservedBytes( &Vcb->Bpb ), + FatBytesPerFat( &Vcb->Bpb ), + &Context->Bcb, + &Context->PinnedPage ); + } + + // + // Load the return value. + // + + + FatLookup12BitEntry( Context->PinnedPage, FatIndex, FatEntry ); + + } else if (Vcb->AllocationSupport.FatIndexBitSize == 32) { + + // + // DEAL WITH 32 BIT CASE + // + + ULONG PageEntryOffset; + ULONG OffsetIntoVolumeFile; + + // + // Initialize two local variables that help us. + // + OffsetIntoVolumeFile = FatReservedBytes(&Vcb->Bpb) + FatIndex * sizeof(FAT_ENTRY); + PageEntryOffset = (OffsetIntoVolumeFile % PAGE_SIZE) / sizeof(FAT_ENTRY); + + // + // Check to see if we need to read in a new page of fat + // + + if ((Context->Bcb == NULL) || + (OffsetIntoVolumeFile / PAGE_SIZE != Context->VboOfPinnedPage / PAGE_SIZE)) { + + // + // The entry wasn't in the pinned page, so must we unpin the current + // page (if any) and read in a new page. + // + + FatUnpinBcb( IrpContext, Context->Bcb ); + + FatReadVolumeFile( IrpContext, + Vcb, + OffsetIntoVolumeFile & ~(PAGE_SIZE - 1), + PAGE_SIZE, + &Context->Bcb, + &Context->PinnedPage ); + + Context->VboOfPinnedPage = OffsetIntoVolumeFile & ~(PAGE_SIZE - 1); + } + + // + // Grab the fat entry from the pinned page, and return + // + + *FatEntry = ((PULONG)(Context->PinnedPage))[PageEntryOffset] & FAT32_ENTRY_MASK; + + } else { + + // + // DEAL WITH 16 BIT CASE + // + + ULONG PageEntryOffset; + ULONG OffsetIntoVolumeFile; + + // + // Initialize two local variables that help us. + // + + OffsetIntoVolumeFile = FatReservedBytes(&Vcb->Bpb) + FatIndex * sizeof(USHORT); + PageEntryOffset = (OffsetIntoVolumeFile % PAGE_SIZE) / sizeof(USHORT); + + // + // Check to see if we need to read in a new page of fat + // + + if ((Context->Bcb == NULL) || + (OffsetIntoVolumeFile / PAGE_SIZE != Context->VboOfPinnedPage / PAGE_SIZE)) { + + // + // The entry wasn't in the pinned page, so must we unpin the current + // page (if any) and read in a new page. + // + + FatUnpinBcb( IrpContext, Context->Bcb ); + + FatReadVolumeFile( IrpContext, + Vcb, + OffsetIntoVolumeFile & ~(PAGE_SIZE - 1), + PAGE_SIZE, + &Context->Bcb, + &Context->PinnedPage ); + + Context->VboOfPinnedPage = OffsetIntoVolumeFile & ~(PAGE_SIZE - 1); + } + + // + // Grab the fat entry from the pinned page, and return + // + + *FatEntry = ((PUSHORT)(Context->PinnedPage))[PageEntryOffset]; + } + + DebugTrace(-1, Dbg, "FatLookupFatEntry -> (VOID)\n", 0); + return; +} + + +VOID +FatSetFatEntry ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG FatIndex, + IN FAT_ENTRY FatEntry + ) + +/*++ + +Routine Description: + + This routine takes an index into the fat and puts a value in the Fat + at this index. The routine special cases 12, 16 and 32 bit fats. In + all cases we go to the cache manager for a piece of the fat. + + We have a special form of this call for setting the DOS-style dirty bit. + Unlike the dirty bit in the boot sector, we do not go to special effort + to make sure that this hits the disk synchronously - if the system goes + down in the window between the dirty bit being set in the boot sector + and the FAT index zero dirty bit being lazy written, then life is tough. + + The only possible scenario is that Win9x may see what it thinks is a clean + volume that really isn't (hopefully Memphis will pay attention to our dirty + bit as well). The dirty bit will get out quickly, and if heavy activity is + occurring, then the dirty bit should actually be there virtually all of the + time since the act of cleaning the volume is the "rare" occurance. + + There are synchronization concerns that would crop up if we tried to make + this synchronous. This thread may already own the Bcb shared for the first + sector of the FAT (so we can't get it exclusive for a writethrough). This + would require some more serious replumbing to work around than I want to + consider at this time. + + We can and do, however, synchronously set the bit clean. + + At this point the reader should understand why the NT dirty bit is where it is. + +Arguments: + + Vcb - Supplies the Vcb to examine, yields 12/16/32 bit info, etc. + + FatIndex - Supplies the destination fat index. + + FatEntry - Supplies the source fat entry. + +--*/ + +{ + LBO Lbo; + PBCB Bcb = NULL; + ULONG SectorSize; + ULONG OffsetIntoVolumeFile; + ULONG WasWait = TRUE; + BOOLEAN RegularOperation = TRUE; + BOOLEAN CleaningOperation = FALSE; + BOOLEAN ReleaseMutex = FALSE; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatSetFatEntry\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " FatIndex = %4x\n", FatIndex); + DebugTrace( 0, Dbg, " FatEntry = %4x\n", FatEntry); + + // + // Make sure they gave us a valid fat index if this isn't the special + // clean-bit modifying call. + // + + if (FatIndex == FAT_DIRTY_BIT_INDEX) { + + // + // We are setting the clean bit state. Of course, we could + // have corruption that would cause us to try to fiddle the + // reserved index - we guard against this by having the + // special entry values use the reserved high 4 bits that + // we know that we'll never try to set. + // + + // + // We don't want to repin the FAT pages involved here. Just + // let the lazy writer hit them when it can. + // + + RegularOperation = FALSE; + + switch (FatEntry) { + case FAT_CLEAN_VOLUME: + FatEntry = FAT_CLEAN_ENTRY; + CleaningOperation = TRUE; + break; + + case FAT_DIRTY_VOLUME: + switch (Vcb->AllocationSupport.FatIndexBitSize) { + case 12: + FatEntry = FAT12_DIRTY_ENTRY; + break; + + case 32: + FatEntry = FAT32_DIRTY_ENTRY; + break; + + default: + FatEntry = FAT16_DIRTY_ENTRY; + break; + } + break; + + default: + FatRaiseStatus( IrpContext, STATUS_FILE_CORRUPT_ERROR ); + break; + } + + // + // Disable dirtying semantics for the duration of this operation. Force this + // operation to wait for the duration. + // + + WasWait = FlagOn( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT ); + SetFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT | IRP_CONTEXT_FLAG_DISABLE_DIRTY ); + + } else { + + ASSERT( !(FatEntry & ~FAT32_ENTRY_MASK) ); + FatVerifyIndexIsValid(IrpContext, Vcb, FatIndex); + } + + // + // Set Sector Size + // + + SectorSize = 1 << Vcb->AllocationSupport.LogOfBytesPerSector; + + // + // Case on 12 or 16 bit fats. + // + // In the 12 bit case (mostly floppies) we always have the whole fat + // (max 6k bytes) pinned during allocation operations. This is possibly + // a wee bit slower, but saves headaches over fat entries with 8 bits + // on one page, and 4 bits on the next. + // + // In the 16 bit case we only read the page that we need to set the fat + // entry. + // + + // + // DEAL WITH 12 BIT CASE + // + + _SEH2_TRY { + + if (Vcb->AllocationSupport.FatIndexBitSize == 12) { + + PVOID PinnedFat; + + // + // Make sure we have a valid entry + // + + FatEntry &= 0xfff; + + // + // We read in the entire fat. Note that using prepare write marks + // the bcb pre-dirty, so we don't have to do it explicitly. + // + + OffsetIntoVolumeFile = FatReservedBytes( &Vcb->Bpb ) + FatIndex * 3 / 2; + + FatPrepareWriteVolumeFile( IrpContext, + Vcb, + FatReservedBytes( &Vcb->Bpb ), + FatBytesPerFat( &Vcb->Bpb ), + &Bcb, + &PinnedFat, + RegularOperation, + FALSE ); + + // + // Mark the sector(s) dirty in the DirtyFatMcb. This call is + // complicated somewhat for the 12 bit case since a single + // entry write can span two sectors (and pages). + // + // Get the Lbo for the sector where the entry starts, and add it to + // the dirty fat Mcb. + // + + Lbo = OffsetIntoVolumeFile & ~(SectorSize - 1); + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize); + + // + // If the entry started on the last byte of the sector, it continues + // to the next sector, so mark the next sector dirty as well. + // + // Note that this entry will simply coalese with the last entry, + // so this operation cannot fail. Also if we get this far, we have + // made it, so no unwinding will be needed. + // + + if ( (OffsetIntoVolumeFile & (SectorSize - 1)) == (SectorSize - 1) ) { + + Lbo += SectorSize; + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize ); + } + + // + // Store the entry into the fat; we need a little synchonization + // here and can't use a spinlock since the bytes might not be + // resident. + // + + FatLockFreeClusterBitMap( Vcb ); + ReleaseMutex = TRUE; + + FatSet12BitEntry( PinnedFat, FatIndex, FatEntry ); + + FatUnlockFreeClusterBitMap( Vcb ); + ReleaseMutex = FALSE; + + } else if (Vcb->AllocationSupport.FatIndexBitSize == 32) { + + // + // DEAL WITH 32 BIT CASE + // + + PULONG PinnedFatEntry32; + + // + // Read in a new page of fat + // + + OffsetIntoVolumeFile = FatReservedBytes( &Vcb->Bpb ) + + FatIndex * sizeof( FAT_ENTRY ); + + FatPrepareWriteVolumeFile( IrpContext, + Vcb, + OffsetIntoVolumeFile, + sizeof(FAT_ENTRY), + &Bcb, + (PVOID *)&PinnedFatEntry32, + RegularOperation, + FALSE ); + // + // Mark the sector dirty in the DirtyFatMcb + // + + Lbo = OffsetIntoVolumeFile & ~(SectorSize - 1); + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize); + + // + // Store the FatEntry to the pinned page. + // + // Preserve the reserved bits in FAT32 entries in the file heap. + // + +#ifdef ALPHA + FatLockFreeClusterBitMap( Vcb ); + ReleaseMutex = TRUE; +#endif // ALPHA + + if (FatIndex != FAT_DIRTY_BIT_INDEX) { + + *PinnedFatEntry32 = ((*PinnedFatEntry32 & ~FAT32_ENTRY_MASK) | FatEntry); + + } else { + + *PinnedFatEntry32 = FatEntry; + } + +#ifdef ALPHA + FatUnlockFreeClusterBitMap( Vcb ); + ReleaseMutex = FALSE; +#endif // ALPHA + + } else { + + // + // DEAL WITH 16 BIT CASE + // + + PUSHORT PinnedFatEntry; + + // + // Read in a new page of fat + // + + OffsetIntoVolumeFile = FatReservedBytes( &Vcb->Bpb ) + + FatIndex * sizeof(USHORT); + + FatPrepareWriteVolumeFile( IrpContext, + Vcb, + OffsetIntoVolumeFile, + sizeof(USHORT), + &Bcb, + (PVOID *)&PinnedFatEntry, + RegularOperation, + FALSE ); + // + // Mark the sector dirty in the DirtyFatMcb + // + + Lbo = OffsetIntoVolumeFile & ~(SectorSize - 1); + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize); + + // + // Store the FatEntry to the pinned page. + // + // We need extra synchronization here for broken architectures + // like the ALPHA that don't support atomic 16 bit writes. + // + +#ifdef ALPHA + FatLockFreeClusterBitMap( Vcb ); + ReleaseMutex = TRUE; +#endif // ALPHA + + *PinnedFatEntry = (USHORT)FatEntry; + +#ifdef ALPHA + FatUnlockFreeClusterBitMap( Vcb ); + ReleaseMutex = FALSE; +#endif // ALPHA + } + + } _SEH2_FINALLY { + + DebugUnwind( FatSetFatEntry ); + + // + // Re-enable volume dirtying in case this was a dirty bit operation. + // + + ClearFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_DISABLE_DIRTY ); + + // + // Make this operation asynchronous again if needed. + // + + if (!WasWait) { + + ClearFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT ); + } + + // + // If we still somehow have the Mutex, release it. + // + + if (ReleaseMutex) { + + ASSERT( _SEH2_AbnormalTermination() ); + + FatUnlockFreeClusterBitMap( Vcb ); + } + + // + // Unpin the Bcb. For cleaning operations, we make this write-through. + // + + if (CleaningOperation && Bcb) { + + IO_STATUS_BLOCK IgnoreStatus; + + CcRepinBcb( Bcb ); + CcUnpinData( Bcb ); + DbgDoit( IrpContext->PinCount -= 1 ); + CcUnpinRepinnedBcb( Bcb, TRUE, &IgnoreStatus ); + + } else { + + FatUnpinBcb(IrpContext, Bcb); + } + + DebugTrace(-1, Dbg, "FatSetFatEntry -> (VOID)\n", 0); + } _SEH2_END; + + return; +} + + +// +// Internal support routine +// + +VOID +FatSetFatRun ( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG StartingFatIndex, + IN ULONG ClusterCount, + IN BOOLEAN ChainTogether + ) + +/*++ + +Routine Description: + + This routine sets a continuous run of clusters in the fat. If ChainTogether + is TRUE, then the clusters are linked together as in normal Fat fasion, + with the last cluster receiving FAT_CLUSTER_LAST. If ChainTogether is + FALSE, all the entries are set to FAT_CLUSTER_AVAILABLE, effectively + freeing all the clusters in the run. + +Arguments: + + Vcb - Supplies the Vcb to examine, yields 12/16 bit info, etc. + + StartingFatIndex - Supplies the destination fat index. + + ClusterCount - Supplies the number of contiguous clusters to work on. + + ChainTogether - Tells us whether to fill the entries with links, or + FAT_CLUSTER_AVAILABLE + + +Return Value: + + VOID + +--*/ + +{ +#define MAXCOUNTCLUS 0x10000 +#define COUNTSAVEDBCBS ((MAXCOUNTCLUS * sizeof(FAT_ENTRY) / PAGE_SIZE) + 2) + PBCB SavedBcbs[COUNTSAVEDBCBS][2]; + + ULONG SectorSize; + ULONG Cluster; + + LBO StartSectorLbo; + LBO FinalSectorLbo; + LBO Lbo; + + PVOID PinnedFat; + +#ifndef __REACTOS__ + ULONG StartingPage; +#endif + + BOOLEAN ReleaseMutex = FALSE; + + ULONG SavedStartingFatIndex = StartingFatIndex; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "FatSetFatRun\n", 0); + DebugTrace( 0, Dbg, " Vcb = %8lx\n", Vcb); + DebugTrace( 0, Dbg, " StartingFatIndex = %8x\n", StartingFatIndex); + DebugTrace( 0, Dbg, " ClusterCount = %8lx\n", ClusterCount); + DebugTrace( 0, Dbg, " ChainTogether = %s\n", ChainTogether ? "TRUE":"FALSE"); + + // + // Make sure they gave us a valid fat run. + // + + FatVerifyIndexIsValid(IrpContext, Vcb, StartingFatIndex); + FatVerifyIndexIsValid(IrpContext, Vcb, StartingFatIndex + ClusterCount - 1); + + // + // Check special case + // + + if (ClusterCount == 0) { + + DebugTrace(-1, Dbg, "FatSetFatRun -> (VOID)\n", 0); + return; + } + + // + // Set Sector Size + // + + SectorSize = 1 << Vcb->AllocationSupport.LogOfBytesPerSector; + + // + // Case on 12 or 16 bit fats. + // + // In the 12 bit case (mostly floppies) we always have the whole fat + // (max 6k bytes) pinned during allocation operations. This is possibly + // a wee bit slower, but saves headaches over fat entries with 8 bits + // on one page, and 4 bits on the next. + // + // In the 16 bit case we only read one page at a time, as needed. + // + + // + // DEAL WITH 12 BIT CASE + // + + _SEH2_TRY { + + if (Vcb->AllocationSupport.FatIndexBitSize == 12) { + +#ifndef __REACTOS__ + StartingPage = 0; +#endif + + // + // We read in the entire fat. Note that using prepare write marks + // the bcb pre-dirty, so we don't have to do it explicitly. + // + + RtlZeroMemory( &SavedBcbs[0], 2 * sizeof(PBCB) * 2); + + FatPrepareWriteVolumeFile( IrpContext, + Vcb, + FatReservedBytes( &Vcb->Bpb ), + FatBytesPerFat( &Vcb->Bpb ), + &SavedBcbs[0][0], + &PinnedFat, + TRUE, + FALSE ); + + // + // Mark the affected sectors dirty. Note that FinalSectorLbo is + // the Lbo of the END of the entry (Thus * 3 + 2). This makes sure + // we catch the case of a dirty fat entry straddling a sector boundry. + // + // Note that if the first AddMcbEntry succeeds, all following ones + // will simply coalese, and thus also succeed. + // + + StartSectorLbo = (FatReservedBytes( &Vcb->Bpb ) + StartingFatIndex * 3 / 2) + & ~(SectorSize - 1); + + FinalSectorLbo = (FatReservedBytes( &Vcb->Bpb ) + ((StartingFatIndex + + ClusterCount) * 3 + 2) / 2) & ~(SectorSize - 1); + + for (Lbo = StartSectorLbo; Lbo <= FinalSectorLbo; Lbo += SectorSize) { + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize ); + } + + // + // Store the entries into the fat; we need a little + // synchonization here and can't use a spinlock since the bytes + // might not be resident. + // + + FatLockFreeClusterBitMap( Vcb ); + ReleaseMutex = TRUE; + + for (Cluster = StartingFatIndex; + Cluster < StartingFatIndex + ClusterCount - 1; + Cluster++) { + + FatSet12BitEntry( PinnedFat, + Cluster, + ChainTogether ? Cluster + 1 : FAT_CLUSTER_AVAILABLE ); + } + + // + // Save the last entry + // + + FatSet12BitEntry( PinnedFat, + Cluster, + ChainTogether ? + FAT_CLUSTER_LAST & 0xfff : FAT_CLUSTER_AVAILABLE ); + + FatUnlockFreeClusterBitMap( Vcb ); + ReleaseMutex = FALSE; + + } else if (Vcb->AllocationSupport.FatIndexBitSize == 32) { + + // + // DEAL WITH 32 BIT CASE + // + + for (;;) { + + VBO StartOffsetInVolume; + VBO FinalOffsetInVolume; + + ULONG Page; + ULONG FinalCluster; + PULONG FatEntry; + ULONG ClusterCountThisRun; + + StartOffsetInVolume = FatReservedBytes(&Vcb->Bpb) + + StartingFatIndex * sizeof(FAT_ENTRY); + + if (ClusterCount > MAXCOUNTCLUS) { + ClusterCountThisRun = MAXCOUNTCLUS; + } else { + ClusterCountThisRun = ClusterCount; + } + + FinalOffsetInVolume = StartOffsetInVolume + + (ClusterCountThisRun - 1) * sizeof(FAT_ENTRY); + +#ifndef __REACTOS__ + StartingPage = StartOffsetInVolume / PAGE_SIZE; +#endif + + { + ULONG NumberOfPages; + ULONG Offset; + + NumberOfPages = (FinalOffsetInVolume / PAGE_SIZE) - + (StartOffsetInVolume / PAGE_SIZE) + 1; + + RtlZeroMemory( &SavedBcbs[0][0], (NumberOfPages + 1) * sizeof(PBCB) * 2 ); + + for ( Page = 0, Offset = StartOffsetInVolume & ~(PAGE_SIZE - 1); + Page < NumberOfPages; + Page++, Offset += PAGE_SIZE ) { + + FatPrepareWriteVolumeFile( IrpContext, + Vcb, + Offset, + PAGE_SIZE, + &SavedBcbs[Page][0], + (PVOID *)&SavedBcbs[Page][1], + TRUE, + FALSE ); + + if (Page == 0) { + + FatEntry = (PULONG)((PUCHAR)SavedBcbs[0][1] + + (StartOffsetInVolume % PAGE_SIZE)); + } + } + } + + // + // Mark the run dirty + // + + StartSectorLbo = StartOffsetInVolume & ~(SectorSize - 1); + FinalSectorLbo = FinalOffsetInVolume & ~(SectorSize - 1); + + for (Lbo = StartSectorLbo; Lbo <= FinalSectorLbo; Lbo += SectorSize) { + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO)Lbo, Lbo, SectorSize ); + } + + // + // Store the entries + // + // We need extra synchronization here for broken architectures + // like the ALPHA that don't support atomic 16 bit writes. + // + +#ifdef ALPHA + FatLockFreeClusterBitMap( Vcb ); + ReleaseMutex = TRUE; +#endif // ALPHA + + FinalCluster = StartingFatIndex + ClusterCountThisRun - 1; + Page = 0; + + for (Cluster = StartingFatIndex; + Cluster <= FinalCluster; + Cluster++, FatEntry++) { + + // + // If we just crossed a page boundry (as opposed to starting + // on one), update our idea of FatEntry. + + if ( (((ULONG_PTR)FatEntry & (PAGE_SIZE-1)) == 0) && + (Cluster != StartingFatIndex) ) { + + Page += 1; + FatEntry = (PULONG)SavedBcbs[Page][1]; + } + + *FatEntry = ChainTogether ? (FAT_ENTRY)(Cluster + 1) : + FAT_CLUSTER_AVAILABLE; + } + + // + // Fix up the last entry if we were chaining together + // + + if ((ClusterCount <= MAXCOUNTCLUS) && + ChainTogether ) { + + *(FatEntry-1) = FAT_CLUSTER_LAST; + } + +#ifdef ALPHA + FatUnlockFreeClusterBitMap( Vcb ); + ReleaseMutex = FALSE; +#endif // ALPHA + + { + ULONG i = 0; + // + // Unpin the Bcbs + // + + while ( SavedBcbs[i][0] != NULL ) { + + FatUnpinBcb( IrpContext, SavedBcbs[i][0] ); + SavedBcbs[i][0] = NULL; + + i += 1; + } + } + + if (ClusterCount <= MAXCOUNTCLUS) { + + break; + + } else { + + StartingFatIndex += MAXCOUNTCLUS; + ClusterCount -= MAXCOUNTCLUS; + } + } + + } else { + + // + // DEAL WITH 16 BIT CASE + // + + VBO StartOffsetInVolume; + VBO FinalOffsetInVolume; + + ULONG Page; + ULONG FinalCluster; + PUSHORT FatEntry; + + StartOffsetInVolume = FatReservedBytes(&Vcb->Bpb) + + StartingFatIndex * sizeof(USHORT); + + FinalOffsetInVolume = StartOffsetInVolume + + (ClusterCount - 1) * sizeof(USHORT); + +#ifndef __REACTOS__ + StartingPage = StartOffsetInVolume / PAGE_SIZE; +#endif + + // + // Read in one page of fat at a time. We cannot read in the + // all of the fat we need because of cache manager limitations. + // + // SavedBcb was initialized to be able to hold the largest + // possible number of pages in a fat plus and extra one to + // accomadate the boot sector, plus one more to make sure there + // is enough room for the RtlZeroMemory below that needs the mark + // the first Bcb after all the ones we will use as an end marker. + // + + { + ULONG NumberOfPages; + ULONG Offset; + + NumberOfPages = (FinalOffsetInVolume / PAGE_SIZE) - + (StartOffsetInVolume / PAGE_SIZE) + 1; + + RtlZeroMemory( &SavedBcbs[0][0], (NumberOfPages + 1) * sizeof(PBCB) * 2 ); + + for ( Page = 0, Offset = StartOffsetInVolume & ~(PAGE_SIZE - 1); + Page < NumberOfPages; + Page++, Offset += PAGE_SIZE ) { + + FatPrepareWriteVolumeFile( IrpContext, + Vcb, + Offset, + PAGE_SIZE, + &SavedBcbs[Page][0], + (PVOID *)&SavedBcbs[Page][1], + TRUE, + FALSE ); + + if (Page == 0) { + + FatEntry = (PUSHORT)((PUCHAR)SavedBcbs[0][1] + + (StartOffsetInVolume % PAGE_SIZE)); + } + } + } + + // + // Mark the run dirty + // + + StartSectorLbo = StartOffsetInVolume & ~(SectorSize - 1); + FinalSectorLbo = FinalOffsetInVolume & ~(SectorSize - 1); + + for (Lbo = StartSectorLbo; Lbo <= FinalSectorLbo; Lbo += SectorSize) { + + FatAddMcbEntry( Vcb, &Vcb->DirtyFatMcb, (VBO) Lbo, Lbo, SectorSize ); + } + + // + // Store the entries + // + // We need extra synchronization here for broken architectures + // like the ALPHA that don't support atomic 16 bit writes. + // + +#ifdef ALPHA + FatLockFreeClusterBitMap( Vcb ); + ReleaseMutex = TRUE; +#endif // ALPHA + + FinalCluster = StartingFatIndex + ClusterCount - 1; + Page = 0; + + for (Cluster = StartingFatIndex; + Cluster <= FinalCluster; + Cluster++, FatEntry++) { + + // + // If we just crossed a page boundry (as opposed to starting + // on one), update our idea of FatEntry. + + if ( (((ULONG_PTR)FatEntry & (PAGE_SIZE-1)) == 0) && + (Cluster != StartingFatIndex) ) { + + Page += 1; + FatEntry = (PUSHORT)SavedBcbs[Page][1]; + } + + *FatEntry = (USHORT) (ChainTogether ? (FAT_ENTRY)(Cluster + 1) : + FAT_CLUSTER_AVAILABLE); + } + + // + // Fix up the last entry if we were chaining together + // + + if ( ChainTogether ) { + + *(FatEntry-1) = (USHORT)FAT_CLUSTER_LAST; + } +#ifdef ALPHA + FatUnlockFreeClusterBitMap( Vcb ); + ReleaseMutex = FALSE; +#endif // ALPHA + } + + } _SEH2_FINALLY { + + ULONG i = 0; + + DebugUnwind( FatSetFatRun ); + + // + // If we still somehow have the Mutex, release it. + // + + if (ReleaseMutex) { + + ASSERT( _SEH2_AbnormalTermination() ); + + FatUnlockFreeClusterBitMap( Vcb ); + } + + // + // Unpin the Bcbs + // + + while ( SavedBcbs[i][0] != NULL ) { + + FatUnpinBcb( IrpContext, SavedBcbs[i][0] ); + + i += 1; + } + + // + // At this point nothing in this finally clause should have raised. + // So, now comes the unsafe (sigh) stuff. + // + + if ( _SEH2_AbnormalTermination() && + (Vcb->AllocationSupport.FatIndexBitSize == 32) ) { + + // + // Fat32 unwind + // + // This case is more complex because the FAT12 and FAT16 cases + // pin all the needed FAT pages (128K max), after which it + // can't fail, before changing any FAT entries. In the Fat32 + // case, it may not be practical to pin all the needed FAT + // pages, because that could span many megabytes. So Fat32 + // attacks in chunks, and if a failure occurs once the first + // chunk has been updated, we have to back out the updates. + // + // The unwind consists of walking back over each FAT entry we + // have changed, setting it back to the previous value. Note + // that the previous value with either be FAT_CLUSTER_AVAILABLE + // (if ChainTogether==TRUE) or a simple link to the successor + // (if ChainTogether==FALSE). + // + // We concede that any one of these calls could fail too; our + // objective is to make this case no more likely than the case + // for a file consisting of multiple disjoint runs. + // + + while ( StartingFatIndex > SavedStartingFatIndex ) { + + StartingFatIndex--; + + FatSetFatEntry( IrpContext, Vcb, StartingFatIndex, + ChainTogether ? + StartingFatIndex + 1 : FAT_CLUSTER_AVAILABLE ); + } + } + + DebugTrace(-1, Dbg, "FatSetFatRun -> (VOID)\n", 0); + } _SEH2_END; + + return; +} + + +// +// Internal support routine +// + +UCHAR +FatLogOf ( + IN ULONG Value + ) + +/*++ + +Routine Description: + + This routine just computes the base 2 log of an integer. It is only used + on objects that are know to be powers of two. + +Arguments: + + Value - The value to take the base 2 log of. + +Return Value: + + UCHAR - The base 2 log of Value. + +--*/ + +{ + UCHAR Log = 0; + + PAGED_CODE(); + + DebugTrace(+1, Dbg, "LogOf\n", 0); + DebugTrace( 0, Dbg, " Value = %8lx\n", Value); + + // + // Knock bits off until we we get a one at position 0 + // + + while ( (Value & 0xfffffffe) != 0 ) { + + Log++; + Value >>= 1; + } + + // + // If there was more than one bit set, the file system messed up, + // Bug Check. + // + + if (Value != 0x1) { + + DebugTrace( 0, Dbg, "Received non power of 2.\n", 0); + + FatBugCheck( Value, Log, 0 ); + } + + DebugTrace(-1, Dbg, "LogOf -> %8lx\n", Log); + + return Log; +} + + +VOID +FatExamineFatEntries( + IN PIRP_CONTEXT IrpContext, + IN PVCB Vcb, + IN ULONG StartIndex OPTIONAL, + IN ULONG EndIndex OPTIONAL, + IN BOOLEAN SetupWindows, + IN PFAT_WINDOW SwitchToWindow OPTIONAL, + IN PULONG BitMapBuffer OPTIONAL + ) +/*++ + +Routine Description: + + This routine handles scanning a segment of the FAT into in-memory structures. + + There are three fundamental cases, with variations depending on the FAT type: + + 1) During volume setup, FatSetupAllocations ... 63103 lines suppressed ...

6 years, 9 months

[reactos] 01/01: [GDI32] GdiDrawStream: Improve handling of small rcDest sizes - Abort drawing if rcDest has negative height or width. - Ignore sizing margins if rcDest is too small. CORE-13513

by Giannis Adamopoulos

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=febf9acfeeb71ae6fca7c… commit febf9acfeeb71ae6fca7c3a659449ef7997458fa Author: Giannis Adamopoulos <gadamopoulos(a)reactos.org> AuthorDate: Wed Nov 22 17:28:18 2017 +0200 [GDI32] GdiDrawStream: Improve handling of small rcDest sizes - Abort drawing if rcDest has negative height or width. - Ignore sizing margins if rcDest is too small. CORE-13513 --- win32ss/gdi/gdi32/misc/misc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/win32ss/gdi/gdi32/misc/misc.c b/win32ss/gdi/gdi32/misc/misc.c index 65287d0b1d..6675e7335c 100644 --- a/win32ss/gdi/gdi32/misc/misc.c +++ b/win32ss/gdi/gdi32/misc/misc.c @@ -677,6 +677,19 @@ GdiDrawStream(HDC dc, ULONG l, PGDI_DRAW_STREAM pDS) else sizingtype = ST_STRETCH; + if (pDS->rcDest.right < pDS->rcDest.left || pDS->rcDest.bottom < pDS->rcDest.top) + return 0; + + if (sm.cxLeftWidth + sm.cxRightWidth > pDS->rcDest.right - pDS->rcDest.left) + { + sm.cxLeftWidth = sm.cxRightWidth = 0; + } + + if (sm.cyTopHeight + sm.cyBottomHeight > pDS->rcDest.bottom - pDS->rcDest.top) + { + sm.cyTopHeight = sm.cyBottomHeight = 0; + } + UXTHEME_DrawImageBackground(pDS->hDC, pDS->hImage, &pDS->rcSrc,

6 years, 9 months

[reactos] 01/01: [BUTTONVISTEST] Add visual tests for buttons

by Giannis Adamopoulos

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b4d691ba969d796acebfe… commit b4d691ba969d796acebfed01649498bc437914b0 Author: Giannis Adamopoulos <gadamopoulos(a)reactos.org> AuthorDate: Wed Nov 22 11:14:49 2017 +0200 [BUTTONVISTEST] Add visual tests for buttons --- modules/rostests/win32/CMakeLists.txt | 1 + modules/rostests/win32/comctl32/CMakeLists.txt | 1 + .../rostests/win32/comctl32/buttonvistest/143.bmp | Bin 0 -> 2054 bytes .../rostests/win32/comctl32/buttonvistest/225.bmp | Bin 0 -> 6198 bytes .../win32/comctl32/buttonvistest/CMakeLists.txt | 4 + .../win32/comctl32/buttonvistest/Win32Project1.ico | Bin 0 -> 46227 bytes .../win32/comctl32/buttonvistest/buttonvistest.cpp | 419 +++++++++++++++++++++ .../win32/comctl32/buttonvistest/buttonvistest.rc | 65 ++++ .../win32/comctl32/buttonvistest/comctl6.manifest | 25 ++ .../win32/comctl32/buttonvistest/resource.h | 38 ++ .../win32/comctl32/buttonvistest/small.ico | Bin 0 -> 46227 bytes 11 files changed, 553 insertions(+) diff --git a/modules/rostests/win32/CMakeLists.txt b/modules/rostests/win32/CMakeLists.txt index 7fc9c96f73..bf71c98beb 100644 --- a/modules/rostests/win32/CMakeLists.txt +++ b/modules/rostests/win32/CMakeLists.txt @@ -1,4 +1,5 @@ add_subdirectory(advapi32) add_subdirectory(cmd) +add_subdirectory(comctl32) add_subdirectory(kernel32) add_subdirectory(user32) diff --git a/modules/rostests/win32/comctl32/CMakeLists.txt b/modules/rostests/win32/comctl32/CMakeLists.txt new file mode 100644 index 0000000000..28bb44b288 --- /dev/null +++ b/modules/rostests/win32/comctl32/CMakeLists.txt @@ -0,0 +1 @@ +add_subdirectory(buttonvistest) diff --git a/modules/rostests/win32/comctl32/buttonvistest/143.bmp b/modules/rostests/win32/comctl32/buttonvistest/143.bmp new file mode 100644 index 0000000000..f1a0b199ab Binary files /dev/null and b/modules/rostests/win32/comctl32/buttonvistest/143.bmp differ diff --git a/modules/rostests/win32/comctl32/buttonvistest/225.bmp b/modules/rostests/win32/comctl32/buttonvistest/225.bmp new file mode 100644 index 0000000000..66d2e4f682 Binary files /dev/null and b/modules/rostests/win32/comctl32/buttonvistest/225.bmp differ diff --git a/modules/rostests/win32/comctl32/buttonvistest/CMakeLists.txt b/modules/rostests/win32/comctl32/buttonvistest/CMakeLists.txt new file mode 100644 index 0000000000..16a707dd39 --- /dev/null +++ b/modules/rostests/win32/comctl32/buttonvistest/CMakeLists.txt @@ -0,0 +1,4 @@ +add_executable(buttonvistest buttonvistest.cpp buttonvistest.rc) +set_module_type(buttonvistest win32gui UNICODE) +add_delay_importlibs(buttonvistest comctl32) +add_importlibs(buttonvistest uxtheme user32 gdi32 advapi32 msvcrt kernel32) diff --git a/modules/rostests/win32/comctl32/buttonvistest/Win32Project1.ico b/modules/rostests/win32/comctl32/buttonvistest/Win32Project1.ico new file mode 100644 index 0000000000..b3ec03bd61 Binary files /dev/null and b/modules/rostests/win32/comctl32/buttonvistest/Win32Project1.ico differ diff --git a/modules/rostests/win32/comctl32/buttonvistest/buttonvistest.cpp b/modules/rostests/win32/comctl32/buttonvistest/buttonvistest.cpp new file mode 100644 index 0000000000..4249a53ee8 --- /dev/null +++ b/modules/rostests/win32/comctl32/buttonvistest/buttonvistest.cpp @@ -0,0 +1,419 @@ +#include <windows.h> +#include <uxtheme.h> +#include <stdlib.h> +#include <tchar.h> +#include "resource.h" + +LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); + +HICON hico; +HBITMAP hbmp; +HIMAGELIST himl; +POINT scPos; + +HBRUSH hbrNULL; +HBRUSH hbrRed; +HBRUSH hbrGreen; +HBRUSH hbrBlue; +HBRUSH hbrCyan; +HBRUSH hbrYellow; + +HBRUSH hbrCtlColorStatic; +HBRUSH hbrCtlColorBtn; +HBRUSH hbrPrintClientClear; +HBRUSH hbrErase; + +BOOL bSkipErase; +BOOL bSkipPaint; + +static void RegisterMyClass(HINSTANCE hInst) +{ + WNDCLASSEXW wcex; + + wcex.cbSize = sizeof(WNDCLASSEX); + + wcex.style = CS_HREDRAW | CS_VREDRAW; + wcex.lpfnWndProc = WndProc; + wcex.cbClsExtra = 0; + wcex.cbWndExtra = 0; + wcex.hInstance = hInst; + wcex.hIcon = LoadIcon(hInst, MAKEINTRESOURCE(IDI_WIN32PROJECT1)); + wcex.hCursor = LoadCursor(NULL, IDC_ARROW); + wcex.hbrBackground = NULL; + wcex.lpszMenuName = MAKEINTRESOURCEW(IDC_MENU); + wcex.lpszClassName = L"ButtonTests"; + wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); + + RegisterClassExW(&wcex); +} + +#define TOP_MARGIN 50 +#define LEFT_MARGIN 160 +#define X_GAP 10 +#define Y_GAP 10 +#define Y_HEIGHT 40 +#define X_WIDTH 150 + +static HWND CreateWnd(HWND hWnd, LPCWSTR Class, LPCWSTR Text, LONG style, int i, int j) +{ + return CreateWindowW(Class, + Text, + style | WS_CHILD | WS_VISIBLE, + LEFT_MARGIN + (X_GAP + X_WIDTH) * i, + TOP_MARGIN + ((Y_GAP + Y_HEIGHT) *j), + X_WIDTH, + Y_HEIGHT, + hWnd, NULL, NULL, NULL); +} + +static HWND CreateBtn(HWND hWnd, LPCWSTR Text, LONG style, int i, int j) +{ + WCHAR buffer[100]; + SIZE s; + + HWND ret = CreateWnd(hWnd, L"Button", Text, style, i, j); + if (GetWindowLongW(ret, GWL_STYLE) != (style | WS_CHILD | WS_VISIBLE)) + { + swprintf(buffer, L"expected 0x%x got 0x%x", (style | WS_CHILD | WS_VISIBLE), GetWindowLongW(ret, GWL_STYLE)); + MessageBox(0, buffer, L"error", MB_OK); + } + + if (SendMessageW(ret, BCM_GETIDEALSIZE, 0, (LPARAM)&s)) + { + swprintf(buffer, L"%s (%d, %d)", Text, s.cx, s.cy); + SendMessageW(ret, WM_SETTEXT, 0, (LPARAM)buffer); + } + return ret; +} + +static void CreateButtonSet(HWND hwndParent, HWND *ahwnd, int i, int j, DWORD style) +{ + ahwnd[0] = CreateBtn(hwndParent, L"TestButton", style, i, j + 0); + ahwnd[1] = CreateBtn(hwndParent, L"TestButton1", style, i, j + 1); + ahwnd[2] = CreateBtn(hwndParent, L"TestButton2", style, i, j + 2); + ahwnd[3] = CreateBtn(hwndParent, L"TestButton3", style | BS_BITMAP, i, j + 3); + ahwnd[4] = CreateBtn(hwndParent, L"TestButton4", style | BS_ICON, i, j + 4); + + SendMessageW(ahwnd[1], BM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hbmp); + SendMessageW(ahwnd[2], BM_SETIMAGE, IMAGE_ICON, (LPARAM)hico); + + SendMessageW(ahwnd[3], BM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hbmp); + SendMessageW(ahwnd[4], BM_SETIMAGE, IMAGE_ICON, (LPARAM)hico); +} + +int WINAPI wWinMain(_In_ HINSTANCE hInstance, + _In_opt_ HINSTANCE hPrevInstance, + _In_ LPWSTR lpCmdLine, + _In_ int nCmdShow) +{ + HWND hwnd[200]; + HANDLE hActCtx; + ULONG_PTR cookie; + BOOL bActivated; + + ACTCTXW actctx = { sizeof(actctx) }; + actctx.hModule = hInstance; + actctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID| ACTCTX_FLAG_HMODULE_VALID; + actctx.lpResourceName = MAKEINTRESOURCEW(500); + hActCtx = CreateActCtxW(&actctx); + + hico = LoadIconW(hInstance, MAKEINTRESOURCEW(IDI_WIN32PROJECT1)); + hbmp = LoadBitmapW(hInstance, MAKEINTRESOURCEW(IDB_BITMAP1)); + + scPos.x = 0; + scPos.y = 0; + + hbrNULL = (HBRUSH)GetStockObject (NULL_BRUSH); + hbrRed = CreateSolidBrush(0x00000FF); + hbrGreen = CreateSolidBrush(0x0000FF00); + hbrBlue = CreateSolidBrush(0x00FF0000); + hbrCyan = CreateSolidBrush(0x00FFFF00); + hbrYellow = CreateSolidBrush(0x0000FFFF); + + hbrCtlColorStatic = hbrRed; + hbrCtlColorBtn = hbrCyan; + hbrPrintClientClear = hbrYellow; + hbrErase = hbrGreen; + + bSkipErase = FALSE; + bSkipPaint = FALSE; + + RegisterMyClass(hInstance); + + HWND hWnd = CreateWindowExW(WS_EX_CLIENTEDGE, L"ButtonTests", L"Button tests", WS_OVERLAPPEDWINDOW| WS_HSCROLL| WS_VSCROLL, + CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); + + CreateWnd(hWnd, L"Static", L"no images", 0, -1, 0); + CreateWnd(hWnd, L"Static", L"with BM_SETIMAGE", 0, -1, 1); + CreateWnd(hWnd, L"Static", L"with BM_SETIMAGE", 0, -1, 2); + CreateWnd(hWnd, L"Static", L"with BM_SETIMAGE and BS_BITMAP", 0, -1, 3); + CreateWnd(hWnd, L"Static", L"with BM_SETIMAGE and BS_ICON", 0, -1, 4); + + CreateWnd(hWnd, L"Static", L"Button V5", 0, 0, -1); + CreateButtonSet(hWnd, &hwnd[0], 0, 0, BS_PUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[5], 1, 0, BS_DEFPUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[10], 0, 5, BS_PUSHBUTTON|WS_DISABLED); + CreateButtonSet(hWnd, &hwnd[15], 1, 5, BS_GROUPBOX); + CreateButtonSet(hWnd, &hwnd[20], 0, 10, BS_CHECKBOX); + CreateButtonSet(hWnd, &hwnd[25], 1, 10, BS_RADIOBUTTON); + + bActivated = ActivateActCtx(hActCtx, &cookie); + LoadLibraryW(L"comctl32.dll"); + + himl = ImageList_LoadImageW(hInstance, MAKEINTRESOURCEW(IDB_BITMAP2), 16, 0, CLR_DEFAULT, IMAGE_BITMAP, LR_CREATEDIBSECTION); + BUTTON_IMAGELIST btniml = {himl, {1,1,1,1}, BUTTON_IMAGELIST_ALIGN_LEFT}; + + CreateWnd(hWnd, L"Static", L"Button V6 without themes", 0, 2, -1); + CreateButtonSet(hWnd, &hwnd[30], 2, 0, BS_PUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[35], 3, 0, BS_DEFPUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[40], 2, 5, BS_PUSHBUTTON|WS_DISABLED); + CreateButtonSet(hWnd, &hwnd[55], 3, 5, BS_GROUPBOX); + CreateButtonSet(hWnd, &hwnd[50], 2, 10, BS_CHECKBOX); + CreateButtonSet(hWnd, &hwnd[55], 3, 10, BS_RADIOBUTTON); + + CreateWnd(hWnd, L"Static", L"Button V6 with imagelist and no themes", 0, 4, -1); + CreateButtonSet(hWnd, &hwnd[60], 4, 0, BS_PUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[65], 5, 0, BS_DEFPUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[70], 4, 5, BS_PUSHBUTTON|WS_DISABLED); + CreateButtonSet(hWnd, &hwnd[75], 5, 5, BS_GROUPBOX); + CreateButtonSet(hWnd, &hwnd[80], 4, 10, BS_CHECKBOX); + CreateButtonSet(hWnd, &hwnd[85], 5, 10, BS_RADIOBUTTON); + + for (int i = 30; i < 90; i++) + SetWindowTheme(hwnd[i], L"", L""); + + for (int i = 60; i< 90; i++) + SendMessageW(hwnd[i], BCM_SETIMAGELIST, 0, (LPARAM)&btniml); + + CreateWnd(hWnd, L"Static", L"Button V6 with themes and imagelist", 0, 6, -1); + CreateButtonSet(hWnd, &hwnd[120], 6, 0, BS_PUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[125], 7, 0, BS_DEFPUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[130], 6, 5, BS_PUSHBUTTON|WS_DISABLED); + CreateButtonSet(hWnd, &hwnd[135], 7, 5, BS_GROUPBOX); + CreateButtonSet(hWnd, &hwnd[140], 6, 10, BS_CHECKBOX); + CreateButtonSet(hWnd, &hwnd[145], 7, 10, BS_RADIOBUTTON); + + CreateWnd(hWnd, L"Static", L"Button V6 with themes", 0, 8, -1); + CreateButtonSet(hWnd, &hwnd[90], 8, 0, BS_PUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[95], 9, 0, BS_DEFPUSHBUTTON); + CreateButtonSet(hWnd, &hwnd[100], 8, 5, BS_PUSHBUTTON|WS_DISABLED); + CreateButtonSet(hWnd, &hwnd[105], 9, 5, BS_GROUPBOX); + CreateButtonSet(hWnd, &hwnd[110], 8, 10, BS_CHECKBOX); + CreateButtonSet(hWnd, &hwnd[115], 9, 10, BS_RADIOBUTTON); + + for (int i = 120; i< 150; i++) + SendMessageW(hwnd[i], BCM_SETIMAGELIST, 0, (LPARAM)&btniml); + + if (bActivated) DeactivateActCtx(0, cookie); + + SCROLLINFO vsi = {sizeof(SCROLLINFO), SIF_ALL, 0, 2 * TOP_MARGIN + 10 * (Y_GAP + Y_HEIGHT), Y_HEIGHT, 0, 0}; + SCROLLINFO hsi = {sizeof(SCROLLINFO), SIF_ALL, 0, 2 * LEFT_MARGIN + 13 * (X_GAP + X_WIDTH), X_WIDTH, 0, 0}; + + SetScrollInfo(hWnd, SB_HORZ, &hsi, FALSE); + SetScrollInfo(hWnd, SB_VERT, &vsi, FALSE); + + ShowScrollBar(hWnd, SB_HORZ, TRUE); + ShowScrollBar(hWnd, SB_VERT, TRUE); + + ShowWindow(hWnd, nCmdShow); + UpdateWindow(hWnd); + + MSG msg; + while (GetMessage(&msg, NULL, 0, 0)) + { + TranslateMessage(&msg); + DispatchMessage(&msg); + } + + return (int) msg.wParam; +} + +static VOID +OnScroll(HWND hwnd, INT nBar, WORD sbCode) +{ + RECT rect; + + SCROLLINFO sInfo; + INT oldPos, Maximum; + PLONG pOriginXY; + + //ASSERT(nBar == SB_HORZ || nBar == SB_VERT); + + GetClientRect(hwnd, &rect); + + if (nBar == SB_HORZ) + { + Maximum =1000;//pData->cxMin - (rect.right-rect.left) /* pData->cxOld */; + pOriginXY = &scPos.x; + } + else // if (nBar == SB_VERT) + { + Maximum = 1000;//pData->cyMin - (rect.bottom-rect.top) /* pData->cyOld */; + pOriginXY = &scPos.y; + } + + /* Set scrollbar sizes */ + sInfo.cbSize = sizeof(sInfo); + sInfo.fMask = SIF_RANGE | SIF_POS | SIF_PAGE | SIF_TRACKPOS; + + if (!GetScrollInfo(hwnd, nBar, &sInfo)) + return; + + oldPos = sInfo.nPos; + + switch (sbCode) + { + case SB_LINEUP: // SB_LINELEFT: + sInfo.nPos--; + break; + + case SB_LINEDOWN: // SB_LINERIGHT: + sInfo.nPos++; + break; + + case SB_PAGEUP: // SB_PAGELEFT: + sInfo.nPos -= sInfo.nPage; + break; + + case SB_PAGEDOWN: // SB_PAGERIGHT: + sInfo.nPos += sInfo.nPage; + break; + + case SB_THUMBTRACK: + sInfo.nPos = sInfo.nTrackPos; + break; + + case SB_THUMBPOSITION: + sInfo.nPos = sInfo.nTrackPos; + break; + + case SB_TOP: // SB_LEFT: + sInfo.nPos = sInfo.nMin; + break; + + case SB_BOTTOM: // SB_RIGHT: + sInfo.nPos = sInfo.nMax; + break; + + default: + break; + } + + sInfo.nPos = min(max(sInfo.nPos, 0), Maximum); + + if (oldPos != sInfo.nPos) + { + POINT scOldPos = scPos; + + /* We now modify scPos */ + *pOriginXY = sInfo.nPos; + + ScrollWindowEx(hwnd, + (scOldPos.x - scPos.x), + (scOldPos.y - scPos.y), + NULL, + NULL, + NULL, + NULL, + SW_INVALIDATE | SW_ERASE | SW_SCROLLCHILDREN); + + sInfo.fMask = SIF_POS; + SetScrollInfo(hwnd, nBar, &sInfo, TRUE); + } +} + +LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) +{ + RECT rc = {0,0,5000,5000}; + switch (message) + { + case WM_DESTROY: + PostQuitMessage(0); + break; + case WM_CTLCOLORSTATIC: + return (LRESULT)hbrCtlColorStatic; + case WM_CTLCOLORBTN: + return (LRESULT)hbrCtlColorBtn; + case WM_ERASEBKGND: + FillRect((HDC)wParam, &rc, hbrErase); + return TRUE; + case WM_PRINTCLIENT: + FillRect((HDC)wParam, &rc, hbrPrintClientClear); + break; + case WM_HSCROLL: + OnScroll(hWnd, SB_HORZ, LOWORD(wParam)); + break; + case WM_VSCROLL: + OnScroll(hWnd, SB_VERT, LOWORD(wParam)); + break; + case WM_DRAWITEM : + { + DRAWITEMSTRUCT* di = (DRAWITEMSTRUCT*)lParam; + INT oldBkMode; + INT state = (di->itemState == ODS_SELECTED) ? DFCS_BUTTONPUSH|DFCS_PUSHED : DFCS_BUTTONPUSH; + DrawFrameControl( di->hDC, &di->rcItem, DFC_BUTTON, state ); + oldBkMode = SetBkMode(di->hDC, TRANSPARENT); + DrawTextW(di->hDC, L"Ownder drawn text", -1, &di->rcItem, DT_VCENTER | DT_CENTER); + SetBkMode(di->hDC, oldBkMode); + break; + } + case WM_NOTIFY: + { + NMHDR* phdr = (NMHDR*)lParam; + if (phdr->code == NM_CUSTOMDRAW) + { + LPNMCUSTOMDRAW lpNMCustomDraw = (LPNMCUSTOMDRAW) lParam; + if (lpNMCustomDraw->dwDrawStage == CDDS_PREERASE && bSkipErase) + return CDRF_SKIPDEFAULT; + else if (lpNMCustomDraw->dwDrawStage == CDDS_PREPAINT && bSkipPaint) + return CDRF_SKIPDEFAULT; + return CDRF_DODEFAULT; + } + } + case WM_COMMAND: + { + UINT id = LOWORD(wParam); + switch(id) + { + case IDM_NULL_WIN: hbrErase = hbrNULL; break; + case IDM_RED_WIN: hbrErase = hbrRed; break; + case IDM_GREEN_WIN: hbrErase = hbrGreen; break; + case IDM_BLUE_WIN: hbrErase = hbrBlue; break; + case IDM_YELLOW_WIN: hbrErase = hbrYellow; break; + case IDM_CYAN_WIN: hbrErase = hbrCyan; break; + + case IDM_NULL_STATIC: hbrCtlColorStatic = hbrNULL; break; + case IDM_RED_STATIC: hbrCtlColorStatic = hbrRed; break; + case IDM_GREEN_STATIC: hbrCtlColorStatic = hbrGreen; break; + case IDM_BLUE_STATIC: hbrCtlColorStatic = hbrBlue; break; + case IDM_YELLOW_STATIC: hbrCtlColorStatic = hbrYellow; break; + case IDM_CYAN_STATIC: hbrCtlColorStatic = hbrCyan; break; + + case IDM_NULL_BTN: hbrCtlColorBtn = hbrNULL; break; + case IDM_RED_BTN: hbrCtlColorBtn = hbrRed; break; + case IDM_GREEN_BTN: hbrCtlColorBtn = hbrGreen; break; + case IDM_BLUE_BTN: hbrCtlColorBtn = hbrBlue; break; + case IDM_YELLOW_BTN: hbrCtlColorBtn = hbrYellow; break; + case IDM_CYAN_BTN: hbrCtlColorBtn = hbrCyan; break; + + case IDM_NULL_PRINTCLNT: hbrPrintClientClear = hbrNULL; break; + case IDM_RED_PRINTCLNT: hbrPrintClientClear = hbrRed; break; + case IDM_GREEN_PRINTCLNT: hbrPrintClientClear = hbrGreen; break; + case IDM_BLUE_PRINTCLNT: hbrPrintClientClear = hbrBlue; break; + case IDM_YELLOW_PRINTCLNT: hbrPrintClientClear = hbrYellow; break; + case IDM_CYAN_PRINTCLNT: hbrPrintClientClear = hbrCyan; break; + + case IDM_SKIP_ERASE: bSkipErase = !bSkipErase; break; + case IDM_SKIP_PAINT: bSkipPaint = !bSkipPaint; break; + default: + return 0; + } + + InvalidateRect(hWnd, NULL, TRUE); + break; + } + default: + return DefWindowProc(hWnd, message, wParam, lParam); + } + return 0; +} diff --git a/modules/rostests/win32/comctl32/buttonvistest/buttonvistest.rc b/modules/rostests/win32/comctl32/buttonvistest/buttonvistest.rc new file mode 100644 index 0000000000..f9f8076795 --- /dev/null +++ b/modules/rostests/win32/comctl32/buttonvistest/buttonvistest.rc @@ -0,0 +1,65 @@ +#include <windows.h> +#include <resource.h> + +LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US +IDI_WIN32PROJECT1 ICON "Win32Project1.ico" +IDI_SMALL ICON "small.ico" + +500 RT_MANIFEST "comctl6.manifest" + +STRINGTABLE +BEGIN + IDS_APP_TITLE "Win32Project1" + IDC_WIN32PROJECT1 "WIN32PROJECT1" +END + +IDB_BITMAP1 BITMAP "143.bmp" +IDB_BITMAP2 BITMAP "225.bmp" + +IDC_MENU MENU +BEGIN + POPUP "Colours" + BEGIN + POPUP "Window brush" + BEGIN + MENUITEM "NULL_BRUSH", IDM_NULL_WIN + MENUITEM "Red", IDM_RED_WIN + MENUITEM "Green", IDM_GREEN_WIN + MENUITEM "Blue", IDM_BLUE_WIN + MENUITEM "Yellow", IDM_YELLOW_WIN + MENUITEM "Cyan", IDM_CYAN_WIN + END + POPUP "CTLCOLORSTATIC" + BEGIN + MENUITEM "NULL_BRUSH", IDM_NULL_STATIC + MENUITEM "Red", IDM_RED_STATIC + MENUITEM "Green", IDM_GREEN_STATIC + MENUITEM "Blue", IDM_BLUE_STATIC + MENUITEM "Yellow", IDM_YELLOW_STATIC + MENUITEM "Cyan", IDM_CYAN_STATIC + END + POPUP "CTLCOLORBTN" + BEGIN + MENUITEM "NULL_BRUSH", IDM_NULL_BTN + MENUITEM "Red", IDM_RED_BTN + MENUITEM "Green", IDM_GREEN_BTN + MENUITEM "Blue", IDM_BLUE_BTN + MENUITEM "Yellow", IDM_YELLOW_BTN + MENUITEM "Cyan", IDM_CYAN_BTN + END + POPUP "PRINTCLIENT clear" + BEGIN + MENUITEM "NULL_BRUSH", IDM_NULL_PRINTCLNT + MENUITEM "Red", IDM_RED_PRINTCLNT + MENUITEM "Green", IDM_GREEN_PRINTCLNT + MENUITEM "Blue", IDM_BLUE_PRINTCLNT + MENUITEM "Yellow", IDM_YELLOW_PRINTCLNT + MENUITEM "Cyan", IDM_CYAN_PRINTCLNT + END + END + POPUP "Skip" + BEGIN + MENUITEM "Skip erase", IDM_SKIP_ERASE + MENUITEM "Skip paint", IDM_SKIP_PAINT + END +END \ No newline at end of file diff --git a/modules/rostests/win32/comctl32/buttonvistest/comctl6.manifest b/modules/rostests/win32/comctl32/buttonvistest/comctl6.manifest new file mode 100644 index 0000000000..be8743f727 --- /dev/null +++ b/modules/rostests/win32/comctl32/buttonvistest/comctl6.manifest @@ -0,0 +1,25 @@ +<?xml version="1.0" encoding="UTF-8" standalone="yes"?> +<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> +<dependency> + <dependentAssembly> + <assemblyIdentity + type="win32" + name="Microsoft.Windows.Common-Controls" + version="6.0.0.0" + publicKeyToken="6595b64144ccf1df" + processorArchitecture="*" + language="*" + /> + </dependentAssembly> +</dependency> +<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3"> + <security> + <requestedPrivileges> + <requestedExecutionLevel + level="asInvoker" + uiAccess="false" + /> + </requestedPrivileges> + </security> +</trustInfo> +</assembly> diff --git a/modules/rostests/win32/comctl32/buttonvistest/resource.h b/modules/rostests/win32/comctl32/buttonvistest/resource.h new file mode 100644 index 0000000000..1b271d0a60 --- /dev/null +++ b/modules/rostests/win32/comctl32/buttonvistest/resource.h @@ -0,0 +1,38 @@ +#define IDI_WIN32PROJECT1 107 +#define IDI_SMALL 108 +#define IDS_APP_TITLE 103 +#define IDC_WIN32PROJECT1 109 +#define IDB_BITMAP1 130 +#define IDB_BITMAP2 131 +#define IDC_MENU 140 + +#define IDM_NULL_WIN 200 +#define IDM_RED_WIN 201 +#define IDM_GREEN_WIN 202 +#define IDM_BLUE_WIN 203 +#define IDM_YELLOW_WIN 204 +#define IDM_CYAN_WIN 205 + +#define IDM_NULL_STATIC 206 +#define IDM_RED_STATIC 207 +#define IDM_GREEN_STATIC 208 +#define IDM_BLUE_STATIC 209 +#define IDM_YELLOW_STATIC 210 +#define IDM_CYAN_STATIC 211 + +#define IDM_NULL_BTN 212 +#define IDM_RED_BTN 213 +#define IDM_GREEN_BTN 214 +#define IDM_BLUE_BTN 215 +#define IDM_YELLOW_BTN 216 +#define IDM_CYAN_BTN 217 + +#define IDM_NULL_PRINTCLNT 218 +#define IDM_RED_PRINTCLNT 219 +#define IDM_GREEN_PRINTCLNT 220 +#define IDM_BLUE_PRINTCLNT 221 +#define IDM_YELLOW_PRINTCLNT 222 +#define IDM_CYAN_PRINTCLNT 223 + +#define IDM_SKIP_ERASE 250 +#define IDM_SKIP_PAINT 251 diff --git a/modules/rostests/win32/comctl32/buttonvistest/small.ico b/modules/rostests/win32/comctl32/buttonvistest/small.ico new file mode 100644 index 0000000000..b3ec03bd61 Binary files /dev/null and b/modules/rostests/win32/comctl32/buttonvistest/small.ico differ

6 years, 9 months

[reactos] 01/01: [CMD] Update the documentation of the FOR command. CORE-5806

by Hermès Bélusca-Maïto

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=748c87202c6a6ed717059… commit 748c87202c6a6ed717059c72224d44487b40f678 Author: Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org> AuthorDate: Tue Nov 21 23:45:54 2017 +0100 [CMD] Update the documentation of the FOR command. CORE-5806 - Also update & translate the french translation. - Translators, please verify & update the translations! --- base/shell/cmd/cmd.rc | 2 +- base/shell/cmd/lang/cs-CZ.rc | 19 ++++++++++++++++--- base/shell/cmd/lang/de-DE.rc | 23 ++++++++++++++++++----- base/shell/cmd/lang/el-GR.rc | 19 ++++++++++++++++--- base/shell/cmd/lang/en-US.rc | 19 ++++++++++++++++--- base/shell/cmd/lang/es-ES.rc | 25 ++++++++++++++++++++----- base/shell/cmd/lang/fr-FR.rc | 37 ++++++++++++++++++++++++++----------- base/shell/cmd/lang/hu-HU.rc | 21 +++++++++++++++++---- base/shell/cmd/lang/id-ID.rc | 19 ++++++++++++++++--- base/shell/cmd/lang/it-IT.rc | 23 ++++++++++++++++++----- base/shell/cmd/lang/ja-JP.rc | 21 +++++++++++++++++---- base/shell/cmd/lang/no-NO.rc | 21 +++++++++++++++++---- base/shell/cmd/lang/pl-PL.rc | 25 +++++++++++++++++++------ base/shell/cmd/lang/ro-RO.rc | 23 ++++++++++++++++++----- base/shell/cmd/lang/ru-RU.rc | 19 ++++++++++++++++--- base/shell/cmd/lang/sk-SK.rc | 19 ++++++++++++++++--- base/shell/cmd/lang/sq-AL.rc | 23 ++++++++++++++++++----- base/shell/cmd/lang/sv-SE.rc | 23 ++++++++++++++++++----- base/shell/cmd/lang/tr-TR.rc | 21 +++++++++++++++++---- base/shell/cmd/lang/uk-UA.rc | 25 +++++++++++++++++++------ base/shell/cmd/lang/zh-CN.rc | 23 ++++++++++++++++++----- base/shell/cmd/lang/zh-TW.rc | 23 ++++++++++++++++++----- 22 files changed, 375 insertions(+), 98 deletions(-) diff --git a/base/shell/cmd/cmd.rc b/base/shell/cmd/cmd.rc index ba8e0a62ac..3c4ae061fc 100644 --- a/base/shell/cmd/cmd.rc +++ b/base/shell/cmd/cmd.rc @@ -91,4 +91,4 @@ END #endif #ifdef LANGUAGE_ZH_TW #include "lang/zh-TW.rc" -#endif \ No newline at end of file +#endif diff --git a/base/shell/cmd/lang/cs-CZ.rc b/base/shell/cmd/lang/cs-CZ.rc index 447bf2a0f9..1c8c84d865 100644 --- a/base/shell/cmd/lang/cs-CZ.rc +++ b/base/shell/cmd/lang/cs-CZ.rc @@ -216,12 +216,25 @@ Type ECHO without a parameter to display the current ECHO setting." /B Exits a batch file only. \n\ If run outside of a batch file it will exit cmd.exe\n\ ExitCode This value will be assigned to ERRORLEVEL on exit\n" - STRING_FOR_HELP1 "Runs a specified command for each file in a set of files\n\n\ -FOR %variable IN (set) DO command [parameters]\n\n\ + STRING_FOR_HELP1 "Runs a specified command for each file in a set of files.\n\n\ +FOR %variable IN (set) DO command [parameters]\n\ +FOR /L %variable IN (start,step,end) DO command [parameters]\n\ +FOR /D %variable IN (set) DO command [parameters]\n\ +FOR /R [[drive:]path] IN (set) DO command [parameters]\n\ +FOR /F [""options""] IN (set) DO command [parameters]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variable Specifies a replaceable parameter.\n\ (set) Specifies a set of one or more files. Wildcards may be used.\n\ command Specifies the command to carry out for each file.\n\ - parameters Specifies parameters or switches for the specified command.\n\n\ + parameters Specifies parameters or switches for the specified command.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ To use the FOR command in a batch program, specify %%variable instead of\n\ %variable.\n" STRING_FREE_HELP1 "\nVolume in drive %s is %-11s\n\ diff --git a/base/shell/cmd/lang/de-DE.rc b/base/shell/cmd/lang/de-DE.rc index 9b243a23e7..9067bdd5ba 100644 --- a/base/shell/cmd/lang/de-DE.rc +++ b/base/shell/cmd/lang/de-DE.rc @@ -209,12 +209,25 @@ ECHO ohne Parameter zeigt die aktuelle Einstellung der Befehlsanzeige an." STRING_ECHO_HELP5 "ECHO ist %s\n" STRING_EXIT_HELP "Beendet den Befehlsinterpreter CMD.EXE oder die aktuelle Batchdatei.\n\nEXIT" STRING_FOR_HELP1 "Führt einen Befehl für jede einzelne Datei für einen Satz von Dateien aus.\n\n\ -FOR %Variable IN (Satz) DO Befehl [Parameter]\n\n\ - %variable Ein ersetzbarer Parameter bestehend aus einem einzelnen\n\ - Buchstaben.\n\ +FOR %Variable IN (Satz) DO Befehl [Parameter]\n\ +FOR /L %Variable IN (start,step,end) DO Befehl [Parameter]\n\ +FOR /D %Variable IN (Satz) DO Befehl [Parameter]\n\ +FOR /R [[drive:]path] IN (Satz) DO Befehl [Parameter]\n\ +FOR /F [""options""] IN (Satz) DO Befehl [Parameter]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %Variable Ein ersetzbarer Parameter bestehend aus einem einzelnen\n\ + Buchstaben.\n\ (Satz) Ein Satz von mindestens einer Datei. Platzhalter sind zulässig.\n\ - Befehl Befehl, der für jede Datei ausgeführt werden soll.\n\ - Parameter Parameter und Optionen für den angegebenen Befehl.\n\n\ + Befehl Befehl, der für jede Datei ausgeführt werden soll.\n\ + Parameter Parameter und Optionen für den angegebenen Befehl.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ Um den FOR-Befehl in einem Batchprogramm zu verwenden, geben Sie %%Variable\n\ statt %Variable an." STRING_FREE_HELP1 "\nVolume in Laufwerk %s ist %-11s\n\ diff --git a/base/shell/cmd/lang/el-GR.rc b/base/shell/cmd/lang/el-GR.rc index 5c1a7af8c4..2ce0815966 100644 --- a/base/shell/cmd/lang/el-GR.rc +++ b/base/shell/cmd/lang/el-GR.rc @@ -215,12 +215,25 @@ Type ECHO without a parameter to display the current ECHO setting." /B Exits a batch file only. \n\ If run outside of a batch file it will exit cmd.exe\n\ ExitCode This value will be assigned to ERRORLEVEL on exit\n" - STRING_FOR_HELP1 "Runs a specified command for each file in a set of files\n\n\ -FOR %variable IN (set) DO command [parameters]\n\n\ + STRING_FOR_HELP1 "Runs a specified command for each file in a set of files.\n\n\ +FOR %variable IN (set) DO command [parameters]\n\ +FOR /L %variable IN (start,step,end) DO command [parameters]\n\ +FOR /D %variable IN (set) DO command [parameters]\n\ +FOR /R [[drive:]path] IN (set) DO command [parameters]\n\ +FOR /F [""options""] IN (set) DO command [parameters]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variable Specifies a replaceable parameter.\n\ (set) Specifies a set of one or more files. Wildcards may be used.\n\ command Specifies the command to carry out for each file.\n\ - parameters Specifies parameters or switches for the specified command.\n\n\ + parameters Specifies parameters or switches for the specified command.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ To use the FOR command in a batch program, specify %%variable instead of\n\ %variable.\n" STRING_FREE_HELP1 "\nVolume in drive %s is %-11s\n\ diff --git a/base/shell/cmd/lang/en-US.rc b/base/shell/cmd/lang/en-US.rc index cbbfa2bf17..c0f16a2764 100644 --- a/base/shell/cmd/lang/en-US.rc +++ b/base/shell/cmd/lang/en-US.rc @@ -211,12 +211,25 @@ Type ECHO without a parameter to display the current ECHO setting." /B Exits a batch file only. \n\ If run outside of a batch file it will exit cmd.exe\n\ ExitCode This value will be assigned to ERRORLEVEL on exit\n" - STRING_FOR_HELP1 "Runs a specified command for each file in a set of files\n\n\ -FOR %variable IN (set) DO command [parameters]\n\n\ + STRING_FOR_HELP1 "Runs a specified command for each file in a set of files.\n\n\ +FOR %variable IN (set) DO command [parameters]\n\ +FOR /L %variable IN (start,step,end) DO command [parameters]\n\ +FOR /D %variable IN (set) DO command [parameters]\n\ +FOR /R [[drive:]path] IN (set) DO command [parameters]\n\ +FOR /F [""options""] IN (set) DO command [parameters]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variable Specifies a replaceable parameter.\n\ (set) Specifies a set of one or more files. Wildcards may be used.\n\ command Specifies the command to carry out for each file.\n\ - parameters Specifies parameters or switches for the specified command.\n\n\ + parameters Specifies parameters or switches for the specified command.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ To use the FOR command in a batch program, specify %%variable instead of\n\ %variable.\n" STRING_FREE_HELP1 "\nVolume in drive %s is %-11s\n\ diff --git a/base/shell/cmd/lang/es-ES.rc b/base/shell/cmd/lang/es-ES.rc index 7ac8700c04..1fe5466f5f 100644 --- a/base/shell/cmd/lang/es-ES.rc +++ b/base/shell/cmd/lang/es-ES.rc @@ -214,13 +214,28 @@ Escribe ECHO sin parámetros para mostrar la configuración actual de ECHO." STRING_ECHO_HELP5 "ECHO está %s\n" STRING_EXIT_HELP "Sale del interprete de la linea de comandos.\n\nEXIT\n" STRING_FOR_HELP1 "Ejecuta un comando específico para cada archivo de un grupo de archivos.\n\n\ -FOR %variable IN (grupo) DO comando [parametros]\n\n\ +FOR %variable IN (grupo) DO comando [parametros]\n\ +FOR /L %variable IN (start,step,end) DO comando [parametros]\n\ +FOR /D %variable IN (grupo) DO comando [parametros]\n\ +FOR /R [[drive:]path] IN (grupo) DO comando [parametros]\n\ +FOR /F [""options""] IN (grupo) DO comando [parametros]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variable Especifica un parámetro remplazable.\n\ - (set) Especifica un grupo de uno o mas archivos. Los comodines pueden usarse.\n\ + (set) Especifica un grupo de uno o mas archivos. Los comodines pueden\n\ + usarse.\n\ command Especifica el comando a ejecutar para cada archivo.\n\ - parameters Especifica los parametros o modificadores para el comando especificado.\n\n\ -Para usar el comando FOR en un archivo por lotes, especifica %%variable en lugar de\n\ -%variable.\n" + parameters Especifica los parametros o modificadores para el comando\n\ + especificado.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ +Para usar el comando FOR en un archivo por lotes, especifica %%variable en lugar\n\ +de %variable.\n" STRING_FREE_HELP1 "\nEl volumen en la unidad %s es %-11s\n\ El número de serie es %s\n\ %16s bytes totales de espacio en disco\n\ diff --git a/base/shell/cmd/lang/fr-FR.rc b/base/shell/cmd/lang/fr-FR.rc index 303304fa68..4a8add0a3e 100644 --- a/base/shell/cmd/lang/fr-FR.rc +++ b/base/shell/cmd/lang/fr-FR.rc @@ -226,15 +226,30 @@ Taper ECHO sans paramètre pour afficher le réglage ECHO courant." /B Quitte seulement un fichier batch. \n\ En cas de lancement en dehors d'un fichier batch, cmd.exe sera quittée\n\ CodeDeFin ERRORLEVEL prendra cette valeur à la sortie\n" - STRING_FOR_HELP1 "Exécute une commande donnée pour chaque fichier d'un ensemble de fichiers.\n\ -FOR %variable IN (ensemble) do commande [paramètres]\n\n\ - %variable Spécife un paramètre remplaçable.\n\ - (ensemble) Spécifie un ensemble d'un ou plusieurs fichiers.\n\ - Des jokers peuvent être utilisés.\n\ - commande Spécifie la commande à éxécuter pour chaque fichier.\n\ - paramètres Spécifie les paramètres ou switchs pour la commande spécifiée.\n\n\ -Pour utiliser la comamnde FOR dans un programme batch,\n\ -utiliser %%variable au lieu de %variable." + STRING_FOR_HELP1 "Exécute une commande donnée pour chaque fichier d'un ensemble de fichiers.\n\n\ +FOR %variable IN (ensemble) DO commande [paramètres]\n\ +FOR /L %variable IN (début,pas,fin) DO commande [paramètres]\n\ +FOR /D %variable IN (ensemble) DO commande [paramètres]\n\ +FOR /R [[lecteur:]chemin] IN (ensemble) DO commande [paramètres]\n\ +FOR /F [""options""] IN (ensemble) DO commande [paramètres]\n\n\ + /L Génère une séquence numérique allant de début à fin, incrémenté de pas.\n\ + /D L'ensemble se réfère à des répertoires au lieu de fichiers.\n\ + /R Exécute la commande pour les fichiers dans l'ensemble du répertoire\n\ + spécifié (ou bien le répertoire de travail courant si non spécifié)\n\ + ainsi que chaque sous-répertoire.\n\ + /F L'ensemble se réfère au contenu des fichiers de l'ensemble.\n\n\ + %variable Spécifie un paramètre remplaçable.\n\ + (ensemble) Spécifie un ensemble d'un ou plusieurs fichiers. Des caractères\n\ + jokers peuvent être utilisés.\n\ + commande Spécifie la commande à exécuter pour chaque fichier.\n\ + paramètres Spécifie les paramètres ou commutateurs pour la commande.\n\ + options Les options supportées sont : eol, skip, delims, tokens, et\n\ + usebackq.\n\n\ +Les paramètres remplaçables peuvent être modifiés par l'ajout d'un ~ et d'un\n\ +qualificateur optionnel après le % et avant le nom (par ex. %~X).\n\ +Les qualificateurs supportés sont : f,d,p,n,x,s,a,t,z.\n\n\ +Pour utiliser la comamnde FOR dans un programme batch, utiliser %%variable\n\ +au lieu de %variable." STRING_FREE_HELP1 "\nLe nom de volume du lecteur %s est %-11s\n\ Le numéro de série est %s\n\ %16s octets d'espace disque total\n\ @@ -301,7 +316,7 @@ prompt texte affiché par la boite de dialogue \n\n\n\ ERRORLEVEL est modifié suivant le bouton pressé:\n\n\ YES : 10 | NO : 11\n\ OK : 10 | CANCEL : 12\n" - STRING_PATH_HELP1 "Affiche ou modifie le chemin de recherche pour les fichiers éxécutables.\n\n\ + STRING_PATH_HELP1 "Affiche ou modifie le chemin de recherche pour les fichiers exécutables.\n\n\ PATH [[lecteur:][chemin;...]]\nPATH ;\n\n\ Taper PATH ; pour effacer tous les réglages courants\n\ et indiquer à l'interpréteur de commandes\n\ @@ -330,7 +345,7 @@ des caractères spéciaux suivants:\n\n\ $V Numéro de version de ReactOS\n\ $_ Retour chariot/saut de ligne\n\ $$ $ (signe dollar)" - STRING_PAUSE_HELP1 "Stoppe l'éxécution d'un fichier batch et affiche le message suivant:\n\ + STRING_PAUSE_HELP1 "Stoppe l'exécution d'un fichier batch et affiche le message suivant:\n\ 'Appuyer sur une touche pour continuer...' ou un message défini\n\ par l'utilisateur.\n\n\ PAUSE [message]" diff --git a/base/shell/cmd/lang/hu-HU.rc b/base/shell/cmd/lang/hu-HU.rc index ef8bcd2ba0..7763adbe02 100644 --- a/base/shell/cmd/lang/hu-HU.rc +++ b/base/shell/cmd/lang/hu-HU.rc @@ -198,12 +198,25 @@ PUSHD [elérési_út | ..]\n\n\ Paraméter nélkül megjeleníti a visszang állapotát." STRING_ECHO_HELP5 "Az ECHO %s\n" STRING_EXIT_HELP "Kilép a parancssor értelmezõbõl.\n\nEXIT\n" - STRING_FOR_HELP1 "Végrehajt egy parancsot az összes fájlban a megadott mappákban\n\n\ -FOR %változó IN (csoport) DO parancs [paraméterek]\n\n\ + STRING_FOR_HELP1 "Végrehajt egy parancsot az összes fájlban a megadott mappákban.\n\n\ +FOR %változó IN (csoport) DO parancs [paraméterek]\n\ +FOR /L %változó IN (start,step,end) DO parancs [paraméterek]\n\ +FOR /D %változó IN (csoport) DO parancs [paraméterek]\n\ +FOR /R [[drive:]path] IN (csoport) DO parancs [paraméterek]\n\ +FOR /F [""options""] IN (csoport) DO parancs [paraméterek]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %változó A cserélhetõ paraméter.\n\ - (csoport) Állományok csoportja. Joker-karakterek megengedettek EZT KURVÁRA ÁTKELL FORDÍTANI :)) wildcardok helyett?.\n\ + (csoport) Állományok csoportja. Joker-karakterek megengedettek.\n\ parancs Ezt a parancsot hajtja végre minden egyes állománnyal.\n\ - paraméterek Ezeket a paramétereket adja meg a parancsnak.\n\n\ + paraméterek Ezeket a paramétereket adja meg a parancsnak.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ A batch állományban való haszálathoz %%változó kell a %változó helyett.\n" STRING_FREE_HELP1 "\nA (%s) meghajtóban lévõ kötet címkéje %-11s\n\ Sorozatszám: %s\n\ diff --git a/base/shell/cmd/lang/id-ID.rc b/base/shell/cmd/lang/id-ID.rc index b9b67d31fe..6fdfe505b3 100644 --- a/base/shell/cmd/lang/id-ID.rc +++ b/base/shell/cmd/lang/id-ID.rc @@ -213,12 +213,25 @@ Ketik ECHO tanpa parameter untuk menampilkan setelan ECHO saat ini." /B Keluar dari hanya file batch. \n\ Jika dijalankan di luar file batch ia akan keluar dari cmd.exe\n\ ExitCode Nilai ini akan ditempatkan ke ERRORLEVEL saat keluar\n" - STRING_FOR_HELP1 "Menjalankan perintah yang ditetapkan untuk setiap file dalam set file\n\n\ -FOR %variabel IN (set) DO perintah [parameter]\n\n\ + STRING_FOR_HELP1 "Menjalankan perintah yang ditetapkan untuk setiap file dalam set file.\n\n\ +FOR %variabel IN (set) DO perintah [parameter]\n\ +FOR /L %variabel IN (start,step,end) DO perintah [parameter]\n\ +FOR /D %variabel IN (set) DO perintah [parameter]\n\ +FOR /R [[drive:]path] IN (set) DO perintah [parameter]\n\ +FOR /F [""options""] IN (set) DO perintah [parameter]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variabel Menetapkan parameter yang bisa diganti.\n\ (set) Mentetapkan sebuah set dari satu atau lebih file. Wildcards boleh dipakai.\n\ perintah Menetapkan perintah yang dilakukan untuk setiap file.\n\ - parameter Menetapkan parameter atau saklar untuk perintah yang dieteapkan.\n\n\ + parameter Menetapkan parameter atau saklar untuk perintah yang dieteapkan.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ Untuk menggunakan perintah FOR dalam program batch, tetapkan %%variable daripada\n\ %variabel.\n" STRING_FREE_HELP1 "\nVolume di drive %s adalah %-11s\n\ diff --git a/base/shell/cmd/lang/it-IT.rc b/base/shell/cmd/lang/it-IT.rc index 916dcfe856..2e4e360ae6 100644 --- a/base/shell/cmd/lang/it-IT.rc +++ b/base/shell/cmd/lang/it-IT.rc @@ -212,13 +212,26 @@ Usa ECHO senza parametri pr visualizzare lo stato attuale di ECHO." /B Esce solo dalle procedure batch.\n\ Se eseguito al di fuori di un batch esce da cmd.exe\n\ ExitCode Verrà assegnato a ERRORLEVEL" - STRING_FOR_HELP1 "Esegue un comand specifico per ogni file indicato\n\n\ -FOR %variabile IN (listafile) DO comando [parametri]\n\n\ + STRING_FOR_HELP1 "Esegue un comand specifico per ogni file indicato.\n\n\ +FOR %variabile IN (insieme) DO comando [parametri]\n\ +FOR /L %variabile IN (start,step,end) DO comando [parametri]\n\ +FOR /D %variabile IN (insieme) DO comando [parametri]\n\ +FOR /R [[drive:]path] IN (insieme) DO comando [parametri]\n\ +FOR /F [""options""] IN (insieme) DO comando [parametri]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variabile Indica un parametro sostituibile.\n\ - (listafile)Indica un insieme di uno o più file. Si possono usare i\ - caratteri jolly.\n\ + (insieme) Indica un insieme di uno o più file. Si possono usare i caratteri\n\ + jolly.\n\ comando Indica un comando da eseguire per ogni file.\n\ - parametri Indica i parametri o le selezioni per il comando.\n\n\ + parametri Indica i parametri o le selezioni per il comando.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ Per usare FOR in un batch usare %%variable invece di %variable.\n" STRING_FREE_HELP1 "\nIl Volume del disco %s è %-11s\n\ Il numero di serie è %s\n\ diff --git a/base/shell/cmd/lang/ja-JP.rc b/base/shell/cmd/lang/ja-JP.rc index eb84b25017..369b4a5a85 100644 --- a/base/shell/cmd/lang/ja-JP.rc +++ b/base/shell/cmd/lang/ja-JP.rc @@ -217,11 +217,24 @@ PUSHD [パス | ..]\n\n\ STRING_ECHO_HELP5 "ECHO は %s です。\n" STRING_EXIT_HELP "コマンドインタープリタを終了します。\n\nEXIT\n" STRING_FOR_HELP1 "指定されたコマンドをファイルセットの各ファイルに対して実行します。\n\n\ -FOR %%変数 IN (セット) DO コマンド [パラメータ]\n\n\ - %%変数単一文字の置き換え可能なパラメータを指定します。\n\ +FOR %変数 IN (セット) DO コマンド [パラメータ]\n\ +FOR /L %変数 IN (start,step,end) DO コマンド [パラメータ]\n\ +FOR /D %変数 IN (セット) DO コマンド [パラメータ]\n\ +FOR /R [[drive:]path] IN (セット) DO コマンド [パラメータ]\n\ +FOR /F [""options""] IN (セット) DO コマンド [パラメータ]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %変数単一文字の置き換え可能なパラメータを指定します。\n\ (セット) ファイルセットを指定します。ワイルドカードを使用できます。\n\ - コマンド各ファイルごとに実行するコマンドを指定します。\n\ - パラメータ指定されたコマンドのパラメータまたはスイッチを指定します。\n\n\ + コマンド各ファイルごとに実行するコマンドを指定します。\n\ + パラメータ指定されたコマンドのパラメータまたはスイッチを指定します。\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ バッチプログラムで FOR コマンドを使用するときは、%%変数の代わりに、\n\ %%%%変数を使用してください。\n" STRING_FREE_HELP1 "\nドライブ %c のボリュームラベルは %-11s です\n\ diff --git a/base/shell/cmd/lang/no-NO.rc b/base/shell/cmd/lang/no-NO.rc index 0eb9439faf..b2aa73a3ef 100644 --- a/base/shell/cmd/lang/no-NO.rc +++ b/base/shell/cmd/lang/no-NO.rc @@ -211,12 +211,25 @@ Skriv ECHO uten parameter for å vise gjeldende ECHO innstillinger." /B Avslutt bare en batch fil. \n\ Hvis det kjøres en batch fil på utsiden vil den avslutte cmd.exe\n\ ExitCode Denne verdien vil bli utpekt til ERRORLEVEL ved avslutting\n" - STRING_FOR_HELP1 "Kjør en spesifisert kommando for hver fil i en gruppe med filer\n\n\ -FOR %variabel IN (gruppe) DO kommando [parametere]\n\n\ - %variable Angir en erstattelig parameter.\n\ + STRING_FOR_HELP1 "Kjør en spesifisert kommando for hver fil i en gruppe med filer.\n\n\ +FOR %variabel IN (gruppe) DO kommando [parametere]\n\ +FOR /L %variabel IN (start,step,end) DO kommando [parametere]\n\ +FOR /D %variabel IN (gruppe) DO kommando [parametere]\n\ +FOR /R [[drive:]path] IN (gruppe) DO kommando [parametere]\n\ +FOR /F [""options""] IN (gruppe) DO kommando [parametere]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %variabel Angir en erstattelig parameter.\n\ (sett) Angir en gruppe med en eller flere filer. Jokertegn kan bli brukt.\n\ kommando Angir kommandoen som skal brukes for hver enkelt fil.\n\ - parametere Angir parameterne eller bryterne for angitte kommando.\n\n\ + parametere Angir parameterne eller bryterne for angitte kommando.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ For å bruke FOR kommando i en satsvis fil, spesifisere %%variabel isteden for\n\ %variabel.\n" STRING_FREE_HELP1 "\nVolum i stasjon %s er %-11s\n\ diff --git a/base/shell/cmd/lang/pl-PL.rc b/base/shell/cmd/lang/pl-PL.rc index 5bb15f3e45..5adf2e068b 100644 --- a/base/shell/cmd/lang/pl-PL.rc +++ b/base/shell/cmd/lang/pl-PL.rc @@ -219,12 +219,25 @@ Wpisz ECHO bez żadnych parametrów, by wyświetlić obecne ustawienie." /B Zamyka jedynie plik wsadowy. \n\ Jeśli użyty będzie poza plikiem wsadowym, zamknie cmd.exe\n\ kod Ta wartość zostanie przypisana do ERRORLEVEL przy wyjściu.\n" - STRING_FOR_HELP1 "Uruchamia wyznaczoną komendę dla każdego pliku w zestawie\n\n\ -FOR %zmienna IN (zestaw) DO komenda [parametery]\n\n\ - %zmienna Wyznacza zamienny parametr.\n\ - (zestaw) Definiuje zestaw plików. Można stosować wieloznaczniki (np. *.*)\n\ - komenda Wyznacza komendę do wykonania na zestawie plików.\n\ - parametry Wyznacza parametry dla podanej komendy.\n\n\ + STRING_FOR_HELP1 "Uruchamia wyznaczoną komendę dla każdego pliku w zestawie.\n\n\ +FOR %zmienna IN (zestaw) DO komenda [parametery]\n\ +FOR /L %zmienna IN (start,step,end) DO komenda [parametery]\n\ +FOR /D %zmienna IN (zestaw) DO komenda [parametery]\n\ +FOR /R [[drive:]path] IN (zestaw) DO komenda [parametery]\n\ +FOR /F [""options""] IN (zestaw) DO komenda [parametery]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %zmienna Wyznacza zamienny parametr.\n\ + (zestaw) Definiuje zestaw plików. Można stosować wieloznaczniki (np. *.*)\n\ + komenda Wyznacza komendę do wykonania na zestawie plików.\n\ + parametry Wyznacza parametry dla podanej komendy.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ By użyć FOR w pliku wsadowym, oznacz zmienną jako %%zmienna zamiast\n\ %zmienna.\n" STRING_FREE_HELP1 "\nWolumin w napędzie %s ma etykietę: %-11s\n\ diff --git a/base/shell/cmd/lang/ro-RO.rc b/base/shell/cmd/lang/ro-RO.rc index 2f5c5e6adf..4e86924670 100644 --- a/base/shell/cmd/lang/ro-RO.rc +++ b/base/shell/cmd/lang/ro-RO.rc @@ -235,14 +235,27 @@ Tastați ECHO fără argumente pentru afișarea stării curente a ecoului.\n" cod_de_ieșire Valoare atribuită variabilei ERRORLEVEL la ieșirea din\n\ interpretorul de comenzi.\n" STRING_FOR_HELP1 "Execută o comandă pentru fiecare fișier dintr-un grup.\n\n\ -FOR %%variablă IN (grup) DO comandă [argumente]\n\n\ - %%variablă Specifică un argument înlocuitor.\n\ +FOR %variablă IN (grup) DO comandă [argumente]\n\ +FOR /L %variablă IN (start,step,end) DO comandă [argumente]\n\ +FOR /D %variablă IN (grup) DO comandă [argumente]\n\ +FOR /R [[drive:]path] IN (grup) DO comandă [argumente]\n\ +FOR /F [""options""] IN (grup) DO comandă [argumente]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %variablă Specifică un argument înlocuitor.\n\ (grup) Specifică un grup de unul sau mai multe fișiere.\n\ Sunt permise metacaractere.\n\ comandă Specifică o comandă executată pentru fiecare fișier.\n\ - argumente Indică argumente pentru comanda executată.\n\n\ -Pentru utilizarea comenzii FOR într-un fișier de comenzi,\n\ -specificați %%%%variabilă în loc de %%variabilă.\n" + argumente Indică argumente pentru comanda executată.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ +Pentru utilizarea comenzii FOR într-un fișier de comenzi, specificați\n\ +%%variabilă în loc de %variabilă.\n" STRING_FREE_HELP1 "\nVolumul unității %s este etichetat ca %-11s\n\ Numărul de serie este %s\n\ %16s octeți pe disc în total\n\ diff --git a/base/shell/cmd/lang/ru-RU.rc b/base/shell/cmd/lang/ru-RU.rc index 63d45f9dde..54f3d4ed07 100644 --- a/base/shell/cmd/lang/ru-RU.rc +++ b/base/shell/cmd/lang/ru-RU.rc @@ -212,13 +212,26 @@ ECHO без параметра выводит текущий режим отоб /B Завершает текущий пакетный файл. \n\ Если выполняется вне пакетного файла, то будет завершена программа CMD.EXE\n\ ExitCode Это значение будет присвоено ERRORLEVEL после выхода\n" - STRING_FOR_HELP1 "Запускает указанную команду для каждого файла из набора файлов\n\n\ -FOR %переменная IN (набор) DO команда [параметры]\n\n\ + STRING_FOR_HELP1 "Запускает указанную команду для каждого файла из набора файлов.\n\n\ +FOR %переменная IN (набор) DO команда [параметры]\n\ +FOR /L %переменная IN (start,step,end) DO команда [параметры]\n\ +FOR /D %переменная IN (набор) DO команда [параметры]\n\ +FOR /R [[drive:]path] IN (набор) DO команда [параметры]\n\ +FOR /F [""options""] IN (набор) DO команда [параметры]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %переменная Подставляемый параметр.\n\ (набор) Набор из одного или нескольких файлов.\n\ Допускается использование подстановочных знаков.\n\ команда Команда, которую следует выполнить для каждого файла.\n\ - параметры Параметры и ключи для указанной команды.\n\n\ + параметры Параметры и ключи для указанной команды.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ В пакетных файлах для команды FOR используется запись\n\ %%переменная вместо %переменная.\n" STRING_FREE_HELP1 "\nТом диска %s: %-11s\n\ diff --git a/base/shell/cmd/lang/sk-SK.rc b/base/shell/cmd/lang/sk-SK.rc index e705969ba8..e2a301ae9b 100644 --- a/base/shell/cmd/lang/sk-SK.rc +++ b/base/shell/cmd/lang/sk-SK.rc @@ -217,12 +217,25 @@ Type ECHO without a parameter to display the current ECHO setting." /B Exits a batch file only. \n\ If run outside of a batch file it will exit cmd.exe\n\ ExitCode This value will be assigned to ERRORLEVEL on exit\n" - STRING_FOR_HELP1 "Runs a specified command for each file in a set of files\n\n\ -FOR %variable IN (set) DO command [parameters]\n\n\ + STRING_FOR_HELP1 "Runs a specified command for each file in a set of files.\n\n\ +FOR %variable IN (set) DO command [parameters]\n\ +FOR /L %variable IN (start,step,end) DO command [parameters]\n\ +FOR /D %variable IN (set) DO command [parameters]\n\ +FOR /R [[drive:]path] IN (set) DO command [parameters]\n\ +FOR /F [""options""] IN (set) DO command [parameters]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variable Specifies a replaceable parameter.\n\ (set) Specifies a set of one or more files. Wildcards may be used.\n\ command Specifies the command to carry out for each file.\n\ - parameters Specifies parameters or switches for the specified command.\n\n\ + parameters Specifies parameters or switches for the specified command.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ To use the FOR command in a batch program, specify %%variable instead of\n\ %variable.\n" STRING_FREE_HELP1 "\nVolume in drive %s is %-11s\n\ diff --git a/base/shell/cmd/lang/sq-AL.rc b/base/shell/cmd/lang/sq-AL.rc index 05f78a1b0b..91845f7ece 100644 --- a/base/shell/cmd/lang/sq-AL.rc +++ b/base/shell/cmd/lang/sq-AL.rc @@ -215,14 +215,27 @@ Shkruaj ECHO pa parametra qe shfaqin konfigurimin aktual te ECHO." /B Dalje nga batch vetëm. \n\ Nëse drejtuar jashtë nga një skedar batch do të dalë nga cmd.exe\n\ ExitCode Kjo vlerë do të caktohet për ERRORLEVEL në dalje\n" - STRING_FOR_HELP1 "Ekzekuto një komandë të specifikuar për secilën dokument në një grupim dokumentesh\n\n\ -FOR %variable IN (set) DO command [parameters]\n\n\ + STRING_FOR_HELP1 "Ekzekuto një komandë të specifikuar për secilën dokument në një grupim dokumentesh.\n\n\ +FOR %variable IN (set) DO command [parameters]\n\ +FOR /L %variable IN (start,step,end) DO command [parameters]\n\ +FOR /D %variable IN (set) DO command [parameters]\n\ +FOR /R [[drive:]path] IN (set) DO command [parameters]\n\ +FOR /F [""options""] IN (set) DO command [parameters]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ %variable Specifikon një parametër zëvndësueshme.\n\ (set) Përcakton një grup të një ose më shumë dosjeve. Jokeri mund të përdoret.\n\ command Përcakton komandën për ta rrealizuar për çdo skedar.\n\ - parameters Përcakton parametrat apo çelsin për komandën e specifikuar.\n\n\ -Për të përdorur komanden FOR në një program batch, specifiko %%variablet në vënd të\n\ -%variable.\n" + parameters Përcakton parametrat apo çelsin për komandën e specifikuar.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ +Për të përdorur komanden FOR në një program batch, specifiko %%variablet në vënd\n\ +të %variable.\n" STRING_FREE_HELP1 "\nVolume në drive %s is %-11s\n\ Nummeri Serial është %s\n\ %16s bytes total në disk\n\ diff --git a/base/shell/cmd/lang/sv-SE.rc b/base/shell/cmd/lang/sv-SE.rc index 4eee829b65..613f18f33b 100644 --- a/base/shell/cmd/lang/sv-SE.rc +++ b/base/shell/cmd/lang/sv-SE.rc @@ -211,13 +211,26 @@ Skriv ECHO utan parametar för att visa aktuell ECHO inställning." /B Avslutt bara en batchfil. \n\ Om det körs utan en batch filkommer det avslutta cmd.exe\n\ ExitCode Detta värdet kommer att skickas till ERRORLEVEL vid avslutning\n" - STRING_FOR_HELP1 "Kör ett angivet kommando för varje fil i en grupp med filer\n\n\ -FOR %variabel IN (grupp) DO kommando [parametrar]\n\n\ - %variable Anger en utbytbar parameter (en enda bokstav).\n\ + STRING_FOR_HELP1 "Kör ett angivet kommando för varje fil i en grupp med filer.\n\n\ +FOR %variabel IN (grupp) DO kommando [parametrar]\n\ +FOR /L %variabel IN (start,step,end) DO kommando [parametrar]\n\ +FOR /D %variabel IN (grupp) DO kommando [parametrar]\n\ +FOR /R [[drive:]path] IN (grupp) DO kommando [parametrar]\n\ +FOR /F [""options""] IN (grupp) DO kommando [parametrar]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %variabel Anger en utbytbar parameter (en enda bokstav).\n\ (grupp) Anger en grupp med en eller flera filer. Jokertecken kan användas.\n\ kommando Anger kommandot som skall användas för varje enskild fil.\n\ - parametrar Anger parametrarna eller växlarna för angivet kommando.\n\n\ -för att bruke FOR kommando i en batchfil, ange %%variabel istället för\n\ + parametrar Anger parametrarna eller växlarna för angivet kommando.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ +För att bruke FOR kommando i en batchfil, ange %%variabel istället för\n\ %variabel.\n" STRING_FREE_HELP1 "\nVolum i enhet %s är %-11s\n\ Serienummret är %s\n\ diff --git a/base/shell/cmd/lang/tr-TR.rc b/base/shell/cmd/lang/tr-TR.rc index b2cf89458f..982af49de0 100644 --- a/base/shell/cmd/lang/tr-TR.rc +++ b/base/shell/cmd/lang/tr-TR.rc @@ -218,12 +218,25 @@ PUSHD [yol | ..]\n\n\ Bir toplu iş kütüğünün dışında çalışırsa cmd.exe'den çıkacaktır.\n\ çıkış kodu Bu değer çıkışta ERRORLEVEL'e atanacaktır.\n" STRING_FOR_HELP1 "Bir takım kütükte tüm kütükler için belirtilen bir komut çalıştırır.\n\n\ -FOR %%değişken IN (takım) DO komut [değişkenler]\n\n\ - %%değişken Yerine geçebilir bir değişken belirtir.\n\ - (takım) Bir ya da daha çok kütük takımını belirtir. Umûmî arama damgaları kullanılabilir.\n\ +FOR %değişken IN (takım) DO komut [değişkenler]\n\ +FOR /L %değişken IN (start,step,end) DO komut [değişkenler]\n\ +FOR /D %değişken IN (takım) DO komut [değişkenler]\n\ +FOR /R [[drive:]path] IN (takım) DO komut [değişkenler]\n\ +FOR /F [""options""] IN (takım) DO komut [değişkenler]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %değişken Yerine geçebilir bir değişken belirtir.\n\ + (takım) Bir ya da daha çok kütük takımını belirtir. Umûmî arama damgaları\n\ + kullanılabilir.\n\ komut Tüm kütükler için yürütülecek komutu belirtir.\n\ değişkenler Belirtilen komut için değişkenleri ya da seçenekleri belirtir.\n\n\ -FOR komutunu bir toplu iş kütüğünde kullanmak için %%değişken yerine %%%%değişken\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ +FOR komutunu bir toplu iş kütüğünde kullanmak için %değişken yerine %%değişken\n\ belirtiniz.\n" STRING_FREE_HELP1 "\n%s sürücüsünde birim %-11s\n\ Dizilik numarası %s\n\ diff --git a/base/shell/cmd/lang/uk-UA.rc b/base/shell/cmd/lang/uk-UA.rc index 063d0c44ac..d30ef0163e 100644 --- a/base/shell/cmd/lang/uk-UA.rc +++ b/base/shell/cmd/lang/uk-UA.rc @@ -222,14 +222,27 @@ ECHO без параметра виводить поточний режим вi /B Виходить лише з пакетного файлу. \n\ Якщо робота йде поза пакетним файлом - вихiд з cmd.exe\n\ ExitCode Це значення буде присвоєно ERRORLEVEL при виходi\n" - STRING_FOR_HELP1 "Запускає вказану команду для кожного файлу з набору файлiв\n\n\ -FOR %variable IN (набiр) DO команда [параметри]\n\n\ - %variable Параметр, що пiдставляється.\n\ + STRING_FOR_HELP1 "Запускає вказану команду для кожного файлу з набору файлiв.\n\n\ +FOR %параметр IN (набiр) DO команда [параметри]\n\ +FOR /L %параметр IN (start,step,end) DO команда [параметри]\n\ +FOR /D %параметр IN (набiр) DO команда [параметри]\n\ +FOR /R [[drive:]path] IN (набiр) DO команда [параметри]\n\ +FOR /F [""options""] IN (набiр) DO команда [параметри]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %параметр Параметр, що пiдставляється.\n\ (набiр) Набiр з одного або декiлькох файлiв. Можна використовувати маски.\n\ команда Команда, яку слiд виконати для кожного файлу.\n\ - параметри Параметри i ключi для вказаної команди.\n\n\ -В пакетних програмах для команди FOR використовується %%variable замiсть\n\ -%variable.\n" + параметри Параметри i ключi для вказаної команди.\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ +В пакетних програмах для команди FOR використовується %%параметр замiсть\n\ +%параметр.\n" STRING_FREE_HELP1 "\nТом диску %s : %-11s\n\ Серiйний номер: %s\n\ %16s байт загального дискового простору\n\ diff --git a/base/shell/cmd/lang/zh-CN.rc b/base/shell/cmd/lang/zh-CN.rc index bce3965b93..00543e1b7b 100644 --- a/base/shell/cmd/lang/zh-CN.rc +++ b/base/shell/cmd/lang/zh-CN.rc @@ -202,11 +202,24 @@ PUSHD [路径 | ..]\n\n\ 如果在一个批处理文件之外运行，将会使 cmd.exe 退出。\n\ 退出代码这个值将会在退出时赋给 ERRORLEVEL。\n" STRING_FOR_HELP1 "在一组文件中为每个文件运行指定的命令。\n\n\ -FOR %变量 IN (集合) DO 命令 [参数]\n\n\ - %变量指定一个可被替换的参数。\n\ - (集合) 指定一个含有一个或多个文件的集合。可以使用通配符。\n\ - 命令指定要为每个文件执行的命令。\n\ - 参数为指定的命令指定参数或开关。\n\n\ +FOR %变量 IN (集合) DO 命令 [参数]\n\ +FOR /L %变量 IN (start,step,end) DO 命令 [参数]\n\ +FOR /D %变量 IN (集合) DO 命令 [参数]\n\ +FOR /R [[drive:]path] IN (集合) DO 命令 [参数]\n\ +FOR /F [""options""] IN (集合) DO 命令 [参数]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %变量指定一个可被替换的参数。\n\ + (集合) 指定一个含有一个或多个文件的集合。可以使用通配符。\n\ + 命令指定要为每个文件执行的命令。\n\ + 参数为指定的命令指定参数或开关。\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ 在批处理文件中使用 FOR 命令时，使用 %%变量而不是 %变量。\n" STRING_FREE_HELP1 "\n驱动器 %s 中的卷是 %-11s\n\ 序列号为 %s\n\ diff --git a/base/shell/cmd/lang/zh-TW.rc b/base/shell/cmd/lang/zh-TW.rc index 3a108bf599..1366af2cd1 100644 --- a/base/shell/cmd/lang/zh-TW.rc +++ b/base/shell/cmd/lang/zh-TW.rc @@ -202,11 +202,24 @@ PUSHD [路徑 | ..]\n\n\ 如果在一個批處理檔案之外運行，將會使 cmd.exe 退出。\n\ 退出程式碼這個值將會在退出時賦給 ERRORLEVEL。\n" STRING_FOR_HELP1 "在一組檔案中為每個檔案運行指定的命令。\n\n\ -FOR %變數 IN (集合) DO 命令 [參數]\n\n\ - %變數指定一個可被替換的參數。\n\ - (集合) 指定一個含有一個或多個檔案的集合。可以使用通配符。\n\ - 命令指定要為每個檔案執行的命令。\n\ - 參數為指定的命令指定參數或開關。\n\n\ +FOR %變數 IN (集合) DO 命令 [參數]\n\ +FOR /L %變數 IN (start,step,end) DO 命令 [參數]\n\ +FOR /D %變數 IN (集合) DO 命令 [參數]\n\ +FOR /R [[drive:]path] IN (集合) DO 命令 [參數]\n\ +FOR /F [""options""] IN (集合) DO 命令 [參數]\n\n\ + /L Generates a number sequence from start to end incrementing by step.\n\ + /D Modifies the set to refer to directories instead of files.\n\ + /R Executes command for files in the set in the specified path (or current\n\ + working directory if not specified) and every directory below.\n\ + /F Modifies the set to refer to the contents of the files in the set.\n\n\ + %變數指定一個可被替換的參數。\n\ + (集合) 指定一個含有一個或多個檔案的集合。可以使用通配符。\n\ + 命令指定要為每個檔案執行的命令。\n\ + 參數為指定的命令指定參數或開關。\n\ + options Supported options are: eol, skip, delims, tokens, and usebackq.\n\n\ +Replacable parameters can be modified by adding a ~ and an optional qualifier\n\ +after the % and before the name (e.g. %~X). Supported qualifiers are:\n\ +f,d,p,n,x,s,a,t,z.\n\n\ 在批處理檔案中使用 FOR 命令時，使用 %%變數而不是 %變數。\n" STRING_FREE_HELP1 "\n驅動器 %s 中的卷是 %-11s\n\ 序列號為 %s\n\

6 years, 9 months

[reactos] 01/01: [PCIIDEX] Properly handle unknown PNP IRPs. CORE-13944

by Thomas Faber

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=ed95fa19f079465eccc5a… commit ed95fa19f079465eccc5a055cad017eac6438d94 Author: Thomas Faber <thomas.faber(a)reactos.org> AuthorDate: Sun Nov 12 14:31:20 2017 +0100 [PCIIDEX] Properly handle unknown PNP IRPs. CORE-13944 --- drivers/storage/ide/pciidex/pdo.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/storage/ide/pciidex/pdo.c b/drivers/storage/ide/pciidex/pdo.c index af41e5f5f7..c82d9d7fea 100644 --- a/drivers/storage/ide/pciidex/pdo.c +++ b/drivers/storage/ide/pciidex/pdo.c @@ -428,8 +428,7 @@ PciIdeXPdoPnpDispatch( { DPRINT1("IRP_MJ_PNP / IRP_MN_QUERY_DEVICE_RELATIONS / Unknown type 0x%lx\n", Stack->Parameters.QueryDeviceRelations.Type); - ASSERT(FALSE); - Status = STATUS_NOT_SUPPORTED; + Status = Irp->IoStatus.Status; break; } } @@ -526,7 +525,6 @@ PciIdeXPdoPnpDispatch( /* We can't forward request to the lower driver, because * we are a Pdo, so we don't have lower driver... */ DPRINT1("IRP_MJ_PNP / Unknown minor function 0x%lx\n", MinorFunction); - ASSERT(FALSE); Information = Irp->IoStatus.Information; Status = Irp->IoStatus.Status; }

6 years, 9 months

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Ros-diffs November 2017