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ksmbd: return FILE_DEVICE_DISK instead of super magic

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[ Upstream commit 25a6e13556 ]

MS-SMB2 specification describes setting ->DeviceType to FILE_DEVICE_DISK
or FILE_DEVICE_CD_ROM. Set FILE_DEVICE_DISK instead of super magic in
FS_DEVICE_INFORMATION. And Set FILE_READ_ONLY_DEVICE for read-only share.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Namjae Jeon 2024-06-24 08:39:23 +09:00 committed by Greg Kroah-Hartman
parent f8900df168
commit c100e7cd65
2 changed files with 41 additions and 2 deletions
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34
fs/smb/common/smb2pdu.h
View File

@ -917,6 +917,40 @@ struct smb2_query_directory_rsp {
__u8 Buffer[];
} __packed;
/* DeviceType Flags */
#define FILE_DEVICE_CD_ROM 0x00000002
#define FILE_DEVICE_CD_ROM_FILE_SYSTEM 0x00000003
#define FILE_DEVICE_DFS 0x00000006
#define FILE_DEVICE_DISK 0x00000007
#define FILE_DEVICE_DISK_FILE_SYSTEM 0x00000008
#define FILE_DEVICE_FILE_SYSTEM 0x00000009
#define FILE_DEVICE_NAMED_PIPE 0x00000011
#define FILE_DEVICE_NETWORK 0x00000012
#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
#define FILE_DEVICE_NULL 0x00000015
#define FILE_DEVICE_PARALLEL_PORT 0x00000016
#define FILE_DEVICE_PRINTER 0x00000018
#define FILE_DEVICE_SERIAL_PORT 0x0000001b
#define FILE_DEVICE_STREAMS 0x0000001e
#define FILE_DEVICE_TAPE 0x0000001f
#define FILE_DEVICE_TAPE_FILE_SYSTEM 0x00000020
#define FILE_DEVICE_VIRTUAL_DISK 0x00000024
#define FILE_DEVICE_NETWORK_REDIRECTOR 0x00000028
/* Device Characteristics */
#define FILE_REMOVABLE_MEDIA 0x00000001
#define FILE_READ_ONLY_DEVICE 0x00000002
#define FILE_FLOPPY_DISKETTE 0x00000004
#define FILE_WRITE_ONCE_MEDIA 0x00000008
#define FILE_REMOTE_DEVICE 0x00000010
#define FILE_DEVICE_IS_MOUNTED 0x00000020
#define FILE_VIRTUAL_VOLUME 0x00000040
#define FILE_DEVICE_SECURE_OPEN 0x00000100
#define FILE_CHARACTERISTIC_TS_DEVICE 0x00001000
#define FILE_CHARACTERISTIC_WEBDAV_DEVICE 0x00002000
#define FILE_PORTABLE_DEVICE 0x00004000
#define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
/*
* Maximum number of iovs we need for a set-info request.
* The largest one is rename/hardlink

9
fs/smb/server/smb2pdu.c
View File

@ -5323,8 +5323,13 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info = (struct filesystem_device_info *)rsp->Buffer;
info->DeviceType = cpu_to_le32(stfs.f_type);
info->DeviceCharacteristics = cpu_to_le32(0x00000020);
info->DeviceType = cpu_to_le32(FILE_DEVICE_DISK);
info->DeviceCharacteristics =
cpu_to_le32(FILE_DEVICE_IS_MOUNTED);
if (!test_tree_conn_flag(work->tcon,
KSMBD_TREE_CONN_FLAG_WRITABLE))
info->DeviceCharacteristics |=
cpu_to_le32(FILE_READ_ONLY_DEVICE);
rsp->OutputBufferLength = cpu_to_le32(8);
break;
}