linux-kernel - [PATCH v4 08/24] smb: move FILE_SYSTEM_ATTRIBUTE

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Message-ID: <20251027071316.3468472-9-chenxiaosong.chenxiaosong@linux.dev>
Date: Mon, 27 Oct 2025 15:13:00 +0800
From: chenxiaosong.chenxiaosong@...ux.dev
To: sfrench@...ba.org,
	smfrench@...il.com,
	linkinjeon@...nel.org,
	linkinjeon@...ba.org,
	christophe.jaillet@...adoo.fr
Cc: linux-cifs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	ChenXiaoSong <chenxiaosong@...inos.cn>
Subject: [PATCH v4 08/24] smb: move FILE_SYSTEM_ATTRIBUTE_INFO to common/smb1pdu.h

From: ChenXiaoSong <chenxiaosong@...inos.cn>

Rename "struct filesystem_attribute_info" to "FILE_SYSTEM_ATTRIBUTE_INFO",
then move duplicate definitions to common header file.

Signed-off-by: ChenXiaoSong <chenxiaosong@...inos.cn>
---
 fs/smb/client/cifspdu.h    | 7 -------
 fs/smb/common/smb1pdu.h    | 8 ++++++++
 fs/smb/server/smb2pdu.c    | 6 +++---
 fs/smb/server/smb_common.h | 7 -------
 4 files changed, 11 insertions(+), 17 deletions(-)

diff --git a/fs/smb/client/cifspdu.h b/fs/smb/client/cifspdu.h
index d40683c7fdc3..7c781b17f73b 100644
--- a/fs/smb/client/cifspdu.h
+++ b/fs/smb/client/cifspdu.h
@@ -1946,13 +1946,6 @@ typedef struct {
 /* minimum includes first three fields, and empty FS Name */
 #define MIN_FS_ATTR_INFO_SIZE 12
 
-typedef struct {
-	__le32 Attributes;
-	__le32 MaxPathNameComponentLength;
-	__le32 FileSystemNameLen;
-	char FileSystemName[52]; /* do not have to save this - get subset? */
-} __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
-
 /******************************************************************************/
 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
 /******************************************************************************/
diff --git a/fs/smb/common/smb1pdu.h b/fs/smb/common/smb1pdu.h
index 6e6ea48fd376..37d1eb0b1fbe 100644
--- a/fs/smb/common/smb1pdu.h
+++ b/fs/smb/common/smb1pdu.h
@@ -346,4 +346,12 @@ typedef struct server_negotiate_rsp {
 #define FILE_CASE_PRESERVED_NAMES	0x00000002
 #define FILE_CASE_SENSITIVE_SEARCH	0x00000001
 
+/* See FS-FSCC 2.5.1 */
+typedef struct {
+	__le32 Attributes;
+	__le32 MaxPathNameComponentLength;
+	__le32 FileSystemNameLen;
+	__le16 FileSystemName[]; /* do not have to save this - get subset? */
+} __packed FILE_SYSTEM_ATTRIBUTE_INFO;
+
 #endif /* _COMMON_SMB1_PDU_H */
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 2c435836e005..d0a077730387 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -5492,10 +5492,10 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
 	}
 	case FS_ATTRIBUTE_INFORMATION:
 	{
-		struct filesystem_attribute_info *info;
+		FILE_SYSTEM_ATTRIBUTE_INFO *info;
 		size_t sz;
 
-		info = (struct filesystem_attribute_info *)rsp->Buffer;
+		info = (FILE_SYSTEM_ATTRIBUTE_INFO *)rsp->Buffer;
 		info->Attributes = cpu_to_le32(FILE_SUPPORTS_OBJECT_IDS |
 					       FILE_PERSISTENT_ACLS |
 					       FILE_UNICODE_ON_DISK |
@@ -5514,7 +5514,7 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
 					"NTFS", PATH_MAX, conn->local_nls, 0);
 		len = len * 2;
 		info->FileSystemNameLen = cpu_to_le32(len);
-		sz = sizeof(struct filesystem_attribute_info) + len;
+		sz = sizeof(FILE_SYSTEM_ATTRIBUTE_INFO) + len;
 		rsp->OutputBufferLength = cpu_to_le32(sz);
 		break;
 	}
diff --git a/fs/smb/server/smb_common.h b/fs/smb/server/smb_common.h
index 546125e1886c..09861be254c6 100644
--- a/fs/smb/server/smb_common.h
+++ b/fs/smb/server/smb_common.h
@@ -57,13 +57,6 @@
 		FILE_EXECUTE | FILE_DELETE_CHILD | \
 		FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES)
 
-struct filesystem_attribute_info {
-	__le32 Attributes;
-	__le32 MaxPathNameComponentLength;
-	__le32 FileSystemNameLen;
-	__le16 FileSystemName[]; /* do not have to save this - get subset? */
-} __packed;
-
 struct filesystem_device_info {
 	__le32 DeviceType;
 	__le32 DeviceCharacteristics;
-- 
2.43.0