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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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5a4b09ecf8
Add support for creating special files via WSL reparse points when using 'reparse=wsl' mount option. They're faster than NFS reparse points because they don't require extra roundtrips to figure out what ->d_type a specific dirent is as such information is already stored in query dir responses and then making getdents() calls faster. Signed-off-by: Paulo Alcantara <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
164 lines
7.9 KiB
C
164 lines
7.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/*
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* SMB, CIFS, SMB2 FSCTL definitions
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*
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* Copyright (c) International Business Machines Corp., 2002,2013
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* Author(s): Steve French (sfrench@us.ibm.com)
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*
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*/
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/* IOCTL information */
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/*
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* List of ioctl/fsctl function codes that are or could be useful in the
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* future to remote clients like cifs or SMB2/SMB3 client. This is probably
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* a slightly larger set of fsctls that NTFS local filesystem could handle,
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* including the seven below that we do not have struct definitions for.
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* Even with protocol definitions for most of these now available, we still
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* need to do some experimentation to identify which are practical to do
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* remotely. Some of the following, such as the encryption/compression ones
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* could be invoked from tools via a specialized hook into the VFS rather
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* than via the standard vfs entry points
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*
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* See MS-SMB2 Section 2.2.31 (last checked September 2021, all of that list are
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* below). Additional detail on less common ones can be found in MS-FSCC
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* section 2.3.
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*/
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#ifndef __SMBFSCTL_H
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#define __SMBFSCTL_H
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/*
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* FSCTL values are 32 bits and are constructed as
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* <device 16bits> <access 2bits> <function 12bits> <method 2bits>
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*/
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/* Device */
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#define FSCTL_DEVICE_DFS (0x0006 << 16)
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#define FSCTL_DEVICE_FILE_SYSTEM (0x0009 << 16)
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#define FSCTL_DEVICE_NAMED_PIPE (0x0011 << 16)
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#define FSCTL_DEVICE_NETWORK_FILE_SYSTEM (0x0014 << 16)
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#define FSCTL_DEVICE_MASK 0xffff0000
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/* Access */
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#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14)
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#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14)
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#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14)
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#define FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS (0x03 << 14)
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#define FSCTL_DEVICE_ACCESS_MASK 0x0000c000
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/* Function */
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#define FSCTL_DEVICE_FUNCTION_MASK 0x00003ffc
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/* Method */
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#define FSCTL_DEVICE_METHOD_BUFFERED 0x00
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#define FSCTL_DEVICE_METHOD_IN_DIRECT 0x01
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#define FSCTL_DEVICE_METHOD_OUT_DIRECT 0x02
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#define FSCTL_DEVICE_METHOD_NEITHER 0x03
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#define FSCTL_DEVICE_METHOD_MASK 0x00000003
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#define FSCTL_DFS_GET_REFERRALS 0x00060194
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#define FSCTL_DFS_GET_REFERRALS_EX 0x000601B0
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#define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
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#define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004
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#define FSCTL_REQUEST_BATCH_OPLOCK 0x00090008
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#define FSCTL_LOCK_VOLUME 0x00090018
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#define FSCTL_UNLOCK_VOLUME 0x0009001C
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#define FSCTL_IS_PATHNAME_VALID 0x0009002C /* BB add struct */
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#define FSCTL_GET_COMPRESSION 0x0009003C /* BB add struct */
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#define FSCTL_SET_COMPRESSION 0x0009C040 /* BB add struct */
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#define FSCTL_QUERY_FAT_BPB 0x00090058 /* BB add struct */
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/* Verify the next FSCTL number, we had it as 0x00090090 before */
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#define FSCTL_FILESYSTEM_GET_STATS 0x00090060 /* BB add struct */
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#define FSCTL_GET_NTFS_VOLUME_DATA 0x00090064 /* BB add struct */
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#define FSCTL_GET_RETRIEVAL_POINTERS 0x00090073 /* BB add struct */
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#define FSCTL_IS_VOLUME_DIRTY 0x00090078 /* BB add struct */
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#define FSCTL_ALLOW_EXTENDED_DASD_IO 0x00090083 /* BB add struct */
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#define FSCTL_REQUEST_FILTER_OPLOCK 0x0009008C
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#define FSCTL_FIND_FILES_BY_SID 0x0009008F /* BB add struct */
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#define FSCTL_SET_OBJECT_ID 0x00090098 /* BB add struct */
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#define FSCTL_GET_OBJECT_ID 0x0009009C /* BB add struct */
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#define FSCTL_DELETE_OBJECT_ID 0x000900A0 /* BB add struct */
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#define FSCTL_SET_REPARSE_POINT 0x000900A4 /* BB add struct */
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#define FSCTL_GET_REPARSE_POINT 0x000900A8 /* BB add struct */
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#define FSCTL_DELETE_REPARSE_POINT 0x000900AC /* BB add struct */
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#define FSCTL_SET_OBJECT_ID_EXTENDED 0x000900BC /* BB add struct */
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#define FSCTL_CREATE_OR_GET_OBJECT_ID 0x000900C0 /* BB add struct */
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#define FSCTL_SET_SPARSE 0x000900C4 /* BB add struct */
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#define FSCTL_SET_ZERO_DATA 0x000980C8
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#define FSCTL_SET_ENCRYPTION 0x000900D7 /* BB add struct */
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#define FSCTL_ENCRYPTION_FSCTL_IO 0x000900DB /* BB add struct */
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#define FSCTL_WRITE_RAW_ENCRYPTED 0x000900DF /* BB add struct */
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#define FSCTL_READ_RAW_ENCRYPTED 0x000900E3 /* BB add struct */
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#define FSCTL_READ_FILE_USN_DATA 0x000900EB /* BB add struct */
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#define FSCTL_WRITE_USN_CLOSE_RECORD 0x000900EF /* BB add struct */
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#define FSCTL_MARK_HANDLE 0x000900FC /* BB add struct */
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#define FSCTL_SIS_COPYFILE 0x00090100 /* BB add struct */
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#define FSCTL_RECALL_FILE 0x00090117 /* BB add struct */
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#define FSCTL_QUERY_SPARING_INFO 0x00090138 /* BB add struct */
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#define FSCTL_QUERY_ON_DISK_VOLUME_INFO 0x0009013C
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#define FSCTL_SET_ZERO_ON_DEALLOC 0x00090194 /* BB add struct */
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#define FSCTL_SET_SHORT_NAME_BEHAVIOR 0x000901B4 /* BB add struct */
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#define FSCTL_GET_INTEGRITY_INFORMATION 0x0009027C
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#define FSCTL_QUERY_FILE_REGIONS 0x00090284
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#define FSCTL_GET_REFS_VOLUME_DATA 0x000902D8 /* See MS-FSCC 2.3.24 */
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#define FSCTL_SET_INTEGRITY_INFORMATION_EXT 0x00090380
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#define FSCTL_GET_RETRIEVAL_POINTERS_AND_REFCOUNT 0x000903d3
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#define FSCTL_GET_RETRIEVAL_POINTER_COUNT 0x0009042b
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#define FSCTL_REFS_STREAM_SNAPSHOT_MANAGEMENT 0x00090440
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#define FSCTL_QUERY_ALLOCATED_RANGES 0x000940CF
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#define FSCTL_OFFLOAD_READ 0x00094264 /* BB add struct */
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#define FSCTL_OFFLOAD_WRITE 0x00098268 /* BB add struct */
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#define FSCTL_SET_DEFECT_MANAGEMENT 0x00098134 /* BB add struct */
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#define FSCTL_FILE_LEVEL_TRIM 0x00098208 /* BB add struct */
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#define FSCTL_DUPLICATE_EXTENTS_TO_FILE 0x00098344
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#define FSCTL_DUPLICATE_EXTENTS_TO_FILE_EX 0x000983E8
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#define FSCTL_SIS_LINK_FILES 0x0009C104
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#define FSCTL_SET_INTEGRITY_INFORMATION 0x0009C280
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#define FSCTL_PIPE_PEEK 0x0011400C /* BB add struct */
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#define FSCTL_PIPE_TRANSCEIVE 0x0011C017 /* BB add struct */
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/* strange that the number for this op is not sequential with previous op */
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#define FSCTL_PIPE_WAIT 0x00110018 /* BB add struct */
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/* Enumerate previous versions of a file */
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#define FSCTL_SRV_ENUMERATE_SNAPSHOTS 0x00144064
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/* Retrieve an opaque file reference for server-side data movement ie copy */
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#define FSCTL_SRV_REQUEST_RESUME_KEY 0x00140078
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#define FSCTL_LMR_REQUEST_RESILIENCY 0x001401D4
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#define FSCTL_LMR_GET_LINK_TRACK_INF 0x001400E8 /* BB add struct */
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#define FSCTL_LMR_SET_LINK_TRACK_INF 0x001400EC /* BB add struct */
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#define FSCTL_VALIDATE_NEGOTIATE_INFO 0x00140204
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/* Perform server-side data movement */
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#define FSCTL_SRV_COPYCHUNK 0x001440F2
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#define FSCTL_SRV_COPYCHUNK_WRITE 0x001480F2
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#define FSCTL_QUERY_NETWORK_INTERFACE_INFO 0x001401FC /* BB add struct */
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#define FSCTL_SRV_READ_HASH 0x001441BB /* BB add struct */
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/* See FSCC 2.1.2.5 */
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#define IO_REPARSE_TAG_MOUNT_POINT 0xA0000003
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#define IO_REPARSE_TAG_HSM 0xC0000004
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#define IO_REPARSE_TAG_SIS 0x80000007
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#define IO_REPARSE_TAG_HSM2 0x80000006
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#define IO_REPARSE_TAG_DRIVER_EXTENDER 0x80000005
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/* Used by the DFS filter. See MS-DFSC */
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#define IO_REPARSE_TAG_DFS 0x8000000A
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/* Used by the DFS filter See MS-DFSC */
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#define IO_REPARSE_TAG_DFSR 0x80000012
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#define IO_REPARSE_TAG_FILTER_MANAGER 0x8000000B
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/* See section MS-FSCC 2.1.2.4 */
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#define IO_REPARSE_TAG_SYMLINK 0xA000000C
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#define IO_REPARSE_TAG_DEDUP 0x80000013
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#define IO_REPARSE_APPXSTREAM 0xC0000014
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/* NFS symlinks, Win 8/SMB3 and later */
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#define IO_REPARSE_TAG_NFS 0x80000014
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/*
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* AzureFileSync - see
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* https://docs.microsoft.com/en-us/azure/storage/files/storage-sync-cloud-tiering
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*/
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#define IO_REPARSE_TAG_AZ_FILE_SYNC 0x8000001e
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/* WSL reparse tags */
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#define IO_REPARSE_TAG_LX_SYMLINK 0xA000001D
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#define IO_REPARSE_TAG_AF_UNIX 0x80000023
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#define IO_REPARSE_TAG_LX_FIFO 0x80000024
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#define IO_REPARSE_TAG_LX_CHR 0x80000025
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#define IO_REPARSE_TAG_LX_BLK 0x80000026
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/* fsctl flags */
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/* If Flags is set to this value, the request is an FSCTL not ioctl request */
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#define SMB2_0_IOCTL_IS_FSCTL 0x00000001
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#endif /* __SMBFSCTL_H */
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