ksmbd: set file permission mode to match Samba server posix extension behavior

Set file permission mode to match Samba server posix extension behavior.
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/ksmbd/oplock.c

@@ -1644,7 +1644,7 @@ void create_posix_rsp_buf(char *cc, struct ksmbd_file *fp)
 
 	buf->nlink = cpu_to_le32(inode->i_nlink);
 	buf->reparse_tag = cpu_to_le32(fp->volatile_id);
-	buf->mode = cpu_to_le32(inode->i_mode);
+	buf->mode = cpu_to_le32(inode->i_mode & 0777);
 	/*
 	 * SidBuffer(44) contain two sids(Domain sid(28), UNIX group sid(16)).
 	 * Domain sid(28) = revision(1) + num_subauth(1) + authority(6) +

fs/ksmbd/smb2pdu.c

@@ -3565,7 +3565,7 @@ static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level,
 		posix_info->AllocationSize = cpu_to_le64(ksmbd_kstat->kstat->blocks << 9);
 		posix_info->DeviceId = cpu_to_le32(ksmbd_kstat->kstat->rdev);
 		posix_info->HardLinks = cpu_to_le32(ksmbd_kstat->kstat->nlink);
-		posix_info->Mode = cpu_to_le32(ksmbd_kstat->kstat->mode);
+		posix_info->Mode = cpu_to_le32(ksmbd_kstat->kstat->mode & 0777);
 		posix_info->Inode = cpu_to_le64(ksmbd_kstat->kstat->ino);
 		posix_info->DosAttributes =
 			S_ISDIR(ksmbd_kstat->kstat->mode) ?
@@ -4737,7 +4737,7 @@ static int find_file_posix_info(struct smb2_query_info_rsp *rsp,
 	file_info->EndOfFile = cpu_to_le64(inode->i_size);
 	file_info->AllocationSize = cpu_to_le64(inode->i_blocks << 9);
 	file_info->HardLinks = cpu_to_le32(inode->i_nlink);
-	file_info->Mode = cpu_to_le32(inode->i_mode);
+	file_info->Mode = cpu_to_le32(inode->i_mode & 0777);
 	file_info->DeviceId = cpu_to_le32(inode->i_rdev);
 	rsp->OutputBufferLength =
 		cpu_to_le32(sizeof(struct smb311_posix_qinfo));