Commit 25a6e135 authored by Namjae Jeon's avatar Namjae Jeon Committed by Steve French
Browse files

ksmbd: return FILE_DEVICE_DISK instead of super magic 



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: default avatarNamjae Jeon <linkinjeon@kernel.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 22a40d14

fs/smb/common/smb2pdu.h

+34 −0
Original line number Diff line number Diff line
@@ -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

fs/smb/server/smb2pdu.c

+7 −2
Original line number Diff line number Diff line
@@ -5314,8 +5314,13 @@ 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;

	}