smb: move client and server files to common directory fs/smb

Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:

   fs/cifs --> fs/smb/client
   fs/ksmbd --> fs/smb/server
   fs/smbfs_common --> fs/smb/common

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

1 files changed, 170 insertions, 0 deletions

diff --git a/fs/smb/common/smbfsctl.h b/fs/smb/common/smbfsctl.h
new file mode 100644
index 000000000000..edd7fc2a7921
--- /dev/null
+++ b/fs/smb/common/smbfsctl.h
@@ -0,0 +1,170 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+/*
+ *   SMB, CIFS, SMB2 FSCTL definitions
+ *
+ *   Copyright (c) International Business Machines  Corp., 2002,2013
+ *   Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ */
+
+/* IOCTL information */
+/*
+ * List of ioctl/fsctl function codes that are or could be useful in the
+ * future to remote clients like cifs or SMB2/SMB3 client.  This is probably
+ * a slightly larger set of fsctls that NTFS local filesystem could handle,
+ * including the seven below that we do not have struct definitions for.
+ * Even with protocol definitions for most of these now available, we still
+ * need to do some experimentation to identify which are practical to do
+ * remotely.  Some of the following, such as the encryption/compression ones
+ * could be invoked from tools via a specialized hook into the VFS rather
+ * than via the standard vfs entry points
+ *
+ * See MS-SMB2 Section 2.2.31 (last checked September 2021, all of that list are
+ * below). Additional detail on less common ones can be found in MS-FSCC
+ * section 2.3.
+ */
+
+#ifndef __SMBFSCTL_H
+#define __SMBFSCTL_H
+
+/*
+ * FSCTL values are 32 bits and are constructed as
+ * <device 16bits> <access 2bits> <function 12bits> <method 2bits>
+ */
+/* Device */
+#define FSCTL_DEVICE_DFS                 (0x0006 << 16)
+#define FSCTL_DEVICE_FILE_SYSTEM         (0x0009 << 16)
+#define FSCTL_DEVICE_NAMED_PIPE          (0x0011 << 16)
+#define FSCTL_DEVICE_NETWORK_FILE_SYSTEM (0x0014 << 16)
+#define FSCTL_DEVICE_MASK                0xffff0000
+/* Access */
+#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS        (0x00 << 14)
+#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS       (0x01 << 14)
+#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS      (0x02 << 14)
+#define FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS (0x03 << 14)
+#define FSCTL_DEVICE_ACCESS_MASK                   0x0000c000
+/* Function */
+#define FSCTL_DEVICE_FUNCTION_MASK       0x00003ffc
+/* Method */
+#define FSCTL_DEVICE_METHOD_BUFFERED   0x00
+#define FSCTL_DEVICE_METHOD_IN_DIRECT  0x01
+#define FSCTL_DEVICE_METHOD_OUT_DIRECT 0x02
+#define FSCTL_DEVICE_METHOD_NEITHER    0x03
+#define FSCTL_DEVICE_METHOD_MASK       0x00000003
+
+
+#define FSCTL_DFS_GET_REFERRALS      0x00060194
+#define FSCTL_DFS_GET_REFERRALS_EX   0x000601B0
+#define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
+#define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004
+#define FSCTL_REQUEST_BATCH_OPLOCK   0x00090008
+#define FSCTL_LOCK_VOLUME            0x00090018
+#define FSCTL_UNLOCK_VOLUME          0x0009001C
+#define FSCTL_IS_PATHNAME_VALID      0x0009002C /* BB add struct */
+#define FSCTL_GET_COMPRESSION        0x0009003C /* BB add struct */
+#define FSCTL_SET_COMPRESSION        0x0009C040 /* BB add struct */
+#define FSCTL_QUERY_FAT_BPB          0x00090058 /* BB add struct */
+/* Verify the next FSCTL number, we had it as 0x00090090 before */
+#define FSCTL_FILESYSTEM_GET_STATS   0x00090060 /* BB add struct */
+#define FSCTL_GET_NTFS_VOLUME_DATA   0x00090064 /* BB add struct */
+#define FSCTL_GET_RETRIEVAL_POINTERS 0x00090073 /* BB add struct */
+#define FSCTL_IS_VOLUME_DIRTY        0x00090078 /* BB add struct */
+#define FSCTL_ALLOW_EXTENDED_DASD_IO 0x00090083 /* BB add struct */
+#define FSCTL_REQUEST_FILTER_OPLOCK  0x0009008C
+#define FSCTL_FIND_FILES_BY_SID      0x0009008F /* BB add struct */
+#define FSCTL_SET_OBJECT_ID          0x00090098 /* BB add struct */
+#define FSCTL_GET_OBJECT_ID          0x0009009C /* BB add struct */
+#define FSCTL_DELETE_OBJECT_ID       0x000900A0 /* BB add struct */
+#define FSCTL_SET_REPARSE_POINT      0x000900A4 /* BB add struct */
+#define FSCTL_GET_REPARSE_POINT      0x000900A8 /* BB add struct */
+#define FSCTL_DELETE_REPARSE_POINT   0x000900AC /* BB add struct */
+#define FSCTL_SET_OBJECT_ID_EXTENDED 0x000900BC /* BB add struct */
+#define FSCTL_CREATE_OR_GET_OBJECT_ID 0x000900C0 /* BB add struct */
+#define FSCTL_SET_SPARSE             0x000900C4 /* BB add struct */
+#define FSCTL_SET_ZERO_DATA          0x000980C8
+#define FSCTL_SET_ENCRYPTION         0x000900D7 /* BB add struct */
+#define FSCTL_ENCRYPTION_FSCTL_IO    0x000900DB /* BB add struct */
+#define FSCTL_WRITE_RAW_ENCRYPTED    0x000900DF /* BB add struct */
+#define FSCTL_READ_RAW_ENCRYPTED     0x000900E3 /* BB add struct */
+#define FSCTL_READ_FILE_USN_DATA     0x000900EB /* BB add struct */
+#define FSCTL_WRITE_USN_CLOSE_RECORD 0x000900EF /* BB add struct */
+#define FSCTL_MARK_HANDLE	     0x000900FC /* BB add struct */
+#define FSCTL_SIS_COPYFILE           0x00090100 /* BB add struct */
+#define FSCTL_RECALL_FILE            0x00090117 /* BB add struct */
+#define FSCTL_QUERY_SPARING_INFO     0x00090138 /* BB add struct */
+#define FSCTL_QUERY_ON_DISK_VOLUME_INFO 0x0009013C
+#define FSCTL_SET_ZERO_ON_DEALLOC    0x00090194 /* BB add struct */
+#define FSCTL_SET_SHORT_NAME_BEHAVIOR 0x000901B4 /* BB add struct */
+#define FSCTL_GET_INTEGRITY_INFORMATION 0x0009027C
+#define FSCTL_QUERY_FILE_REGIONS     0x00090284
+#define FSCTL_GET_REFS_VOLUME_DATA   0x000902D8 /* See MS-FSCC 2.3.24 */
+#define FSCTL_SET_INTEGRITY_INFORMATION_EXT 0x00090380
+#define FSCTL_GET_RETRIEVAL_POINTERS_AND_REFCOUNT 0x000903d3
+#define FSCTL_GET_RETRIEVAL_POINTER_COUNT 0x0009042b
+#define FSCTL_REFS_STREAM_SNAPSHOT_MANAGEMENT 0x00090440
+#define FSCTL_QUERY_ALLOCATED_RANGES 0x000940CF
+#define FSCTL_OFFLOAD_READ	0x00094264 /* BB add struct */
+#define FSCTL_OFFLOAD_WRITE	0x00098268 /* BB add struct */
+#define FSCTL_SET_DEFECT_MANAGEMENT  0x00098134 /* BB add struct */
+#define FSCTL_FILE_LEVEL_TRIM        0x00098208 /* BB add struct */
+#define FSCTL_DUPLICATE_EXTENTS_TO_FILE 0x00098344
+#define FSCTL_DUPLICATE_EXTENTS_TO_FILE_EX 0x000983E8
+#define FSCTL_SIS_LINK_FILES         0x0009C104
+#define FSCTL_SET_INTEGRITY_INFORMATION 0x0009C280
+#define FSCTL_PIPE_PEEK              0x0011400C /* BB add struct */
+#define FSCTL_PIPE_TRANSCEIVE        0x0011C017 /* BB add struct */
+/* strange that the number for this op is not sequential with previous op */
+#define FSCTL_PIPE_WAIT              0x00110018 /* BB add struct */
+/* Enumerate previous versions of a file */
+#define FSCTL_SRV_ENUMERATE_SNAPSHOTS 0x00144064
+/* Retrieve an opaque file reference for server-side data movement ie copy */
+#define FSCTL_SRV_REQUEST_RESUME_KEY 0x00140078
+#define FSCTL_LMR_REQUEST_RESILIENCY 0x001401D4
+#define FSCTL_LMR_GET_LINK_TRACK_INF 0x001400E8 /* BB add struct */
+#define FSCTL_LMR_SET_LINK_TRACK_INF 0x001400EC /* BB add struct */
+#define FSCTL_VALIDATE_NEGOTIATE_INFO 0x00140204
+/* Perform server-side data movement */
+#define FSCTL_SRV_COPYCHUNK 0x001440F2
+#define FSCTL_SRV_COPYCHUNK_WRITE 0x001480F2
+#define FSCTL_QUERY_NETWORK_INTERFACE_INFO 0x001401FC /* BB add struct */
+#define FSCTL_SRV_READ_HASH          0x001441BB /* BB add struct */
+
+/* See FSCC 2.1.2.5 */
+#define IO_REPARSE_TAG_MOUNT_POINT   0xA0000003
+#define IO_REPARSE_TAG_HSM           0xC0000004
+#define IO_REPARSE_TAG_SIS           0x80000007
+#define IO_REPARSE_TAG_HSM2          0x80000006
+#define IO_REPARSE_TAG_DRIVER_EXTENDER 0x80000005
+/* Used by the DFS filter. See MS-DFSC */
+#define IO_REPARSE_TAG_DFS           0x8000000A
+/* Used by the DFS filter See MS-DFSC */
+#define IO_REPARSE_TAG_DFSR          0x80000012
+#define IO_REPARSE_TAG_FILTER_MANAGER 0x8000000B
+/* See section MS-FSCC 2.1.2.4 */
+#define IO_REPARSE_TAG_SYMLINK       0xA000000C
+#define IO_REPARSE_TAG_DEDUP         0x80000013
+#define IO_REPARSE_APPXSTREAM	     0xC0000014
+/* NFS symlinks, Win 8/SMB3 and later */
+#define IO_REPARSE_TAG_NFS           0x80000014
+/*
+ * AzureFileSync - see
+ * https://docs.microsoft.com/en-us/azure/storage/files/storage-sync-cloud-tiering
+ */
+#define IO_REPARSE_TAG_AZ_FILE_SYNC  0x8000001e
+/* WSL reparse tags */
+#define IO_REPARSE_TAG_LX_SYMLINK    0xA000001D
+#define IO_REPARSE_TAG_AF_UNIX	     0x80000023
+#define IO_REPARSE_TAG_LX_FIFO	     0x80000024
+#define IO_REPARSE_TAG_LX_CHR	     0x80000025
+#define IO_REPARSE_TAG_LX_BLK	     0x80000026
+
+#define IO_REPARSE_TAG_LX_SYMLINK_LE	cpu_to_le32(0xA000001D)
+#define IO_REPARSE_TAG_AF_UNIX_LE	cpu_to_le32(0x80000023)
+#define IO_REPARSE_TAG_LX_FIFO_LE	cpu_to_le32(0x80000024)
+#define IO_REPARSE_TAG_LX_CHR_LE	cpu_to_le32(0x80000025)
+#define IO_REPARSE_TAG_LX_BLK_LE	cpu_to_le32(0x80000026)
+
+/* fsctl flags */
+/* If Flags is set to this value, the request is an FSCTL not ioctl request */
+#define SMB2_0_IOCTL_IS_FSCTL		0x00000001
+#endif /* __SMBFSCTL_H */