smb: move create_durable_rsp_v2 to common/smb2pdu.h

Modify the following places:

  - some fields in "struct create_durable_v2_rsp" ->
                       struct durable_context_v2_rsp
  - durable_reconnect_context_v2_rsp -> durable_context_v2_rsp
  - create_durable_v2_rsp -> create_durable_rsp_v2

Then move them to common header file.

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: ChenXiaoSong

fs/smb/client/smb2pdu.h

@@ -138,12 +138,6 @@ struct share_redirect_error_context_rsp {
 /* Flags */
 #define SMB2_DHANDLE_FLAG_PERSISTENT	0x00000002
 
-/* See MS-SMB2 2.2.14.2.12 */
-struct durable_reconnect_context_v2_rsp {
-	__le32 Timeout;
-	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
-} __packed;
-
 /* See MS-SMB2 2.2.13.2.5 */
 struct crt_twarp_ctxt {
 	struct create_context_hdr ccontext;

fs/smb/common/smb2pdu.h

@@ -1320,6 +1320,18 @@ struct create_durable_handle_reconnect_v2 {
 	struct durable_reconnect_context_v2 dcontext;
 } __packed;
 
+/* See MS-SMB2 2.2.14.2.12 */
+struct durable_context_v2_rsp {
+	__le32 Timeout;
+	__le32 Flags; /* see SMB2_DHANDLE_FLAG_PERSISTENT */
+} __packed;
+
+struct create_durable_rsp_v2 {
+	struct create_context_hdr ccontext;
+	__u8   Name[8];
+	struct durable_context_v2_rsp dcontext;
+} __packed;
+
 /* See MS-SMB2 2.2.14.2.5 */
 struct create_mxac_rsp {
 	struct create_context_hdr ccontext;

fs/smb/server/oplock.c

@@ -1617,9 +1617,9 @@ void create_durable_rsp_buf(char *cc)
  */
 void create_durable_v2_rsp_buf(char *cc, struct ksmbd_file *fp)
 {
-	struct create_durable_v2_rsp *buf;
+	struct create_durable_rsp_v2 *buf;
 
-	buf = (struct create_durable_v2_rsp *)cc;
+	buf = (struct create_durable_rsp_v2 *)cc;
 	memset(buf, 0, sizeof(struct create_durable_rsp));
 	buf->ccontext.DataOffset = cpu_to_le16(offsetof
 			(struct create_durable_rsp, Data));
@@ -1633,9 +1633,9 @@ void create_durable_v2_rsp_buf(char *cc, struct ksmbd_file *fp)
 	buf->Name[2] = '2';
 	buf->Name[3] = 'Q';
 
-	buf->Timeout = cpu_to_le32(fp->durable_timeout);
+	buf->dcontext.Timeout = cpu_to_le32(fp->durable_timeout);
 	if (fp->is_persistent)
-		buf->Flags = cpu_to_le32(SMB2_DHANDLE_FLAG_PERSISTENT);
+		buf->dcontext.Flags = cpu_to_le32(SMB2_DHANDLE_FLAG_PERSISTENT);
 }
 
 /**

fs/smb/server/smb2ops.c

@@ -59,7 +59,7 @@ static struct smb_version_values smb30_server_values = {
 	.cap_large_files = SMB2_LARGE_FILES,
 	.create_lease_size = sizeof(struct create_lease_v2),
 	.create_durable_size = sizeof(struct create_durable_rsp),
-	.create_durable_v2_size = sizeof(struct create_durable_v2_rsp),
+	.create_durable_v2_size = sizeof(struct create_durable_rsp_v2),
 	.create_mxac_size = sizeof(struct create_mxac_rsp),
 	.create_disk_id_size = sizeof(struct create_disk_id_rsp),
 	.create_posix_size = sizeof(struct create_posix_rsp),
@@ -86,7 +86,7 @@ static struct smb_version_values smb302_server_values = {
 	.cap_large_files = SMB2_LARGE_FILES,
 	.create_lease_size = sizeof(struct create_lease_v2),
 	.create_durable_size = sizeof(struct create_durable_rsp),
-	.create_durable_v2_size = sizeof(struct create_durable_v2_rsp),
+	.create_durable_v2_size = sizeof(struct create_durable_rsp_v2),
 	.create_mxac_size = sizeof(struct create_mxac_rsp),
 	.create_disk_id_size = sizeof(struct create_disk_id_rsp),
 	.create_posix_size = sizeof(struct create_posix_rsp),
@@ -113,7 +113,7 @@ static struct smb_version_values smb311_server_values = {
 	.cap_large_files = SMB2_LARGE_FILES,
 	.create_lease_size = sizeof(struct create_lease_v2),
 	.create_durable_size = sizeof(struct create_durable_rsp),
-	.create_durable_v2_size = sizeof(struct create_durable_v2_rsp),
+	.create_durable_v2_size = sizeof(struct create_durable_rsp_v2),
 	.create_mxac_size = sizeof(struct create_mxac_rsp),
 	.create_disk_id_size = sizeof(struct create_disk_id_rsp),
 	.create_posix_size = sizeof(struct create_posix_rsp),

fs/smb/server/smb2pdu.h

@@ -98,12 +98,6 @@ struct create_durable_rsp {
 /* See MS-SMB2 2.2.13.2.11 */
 /* Flags */
 #define SMB2_DHANDLE_FLAG_PERSISTENT	0x00000002
-struct create_durable_v2_rsp {
-	struct create_context_hdr ccontext;
-	__u8   Name[8];
-	__le32 Timeout;
-	__le32 Flags;
-} __packed;
 
 /* equivalent of the contents of SMB3.1.1 POSIX open context response */
 struct create_posix_rsp {