12 #include <linux/file.h>
29  * returns without any errors. This is to be used only for file reads.
36 	struct file *file = iocb->ki_filp;  in ecryptfs_read_update_atime()  local
40 		struct path path = ecryptfs_lower_path(file->f_path.dentry);  in ecryptfs_read_update_atime()
53  * to be used only for file reads.  The function to be used for directory reads
56 static ssize_t ecryptfs_splice_read_update_atime(struct file *in, loff_t *ppos,  in ecryptfs_splice_read_update_atime()
121  * @file: The eCryptfs directory file
124 static int ecryptfs_readdir(struct file *file, struct dir_context *ctx)  in ecryptfs_readdir()  argument
127 	struct file *lower_file;  in ecryptfs_readdir()
128 	struct inode *inode = file_inode(file);  in ecryptfs_readdir()
134 	lower_file = ecryptfs_file_to_lower(file);  in ecryptfs_readdir()
186 static int ecryptfs_mmap(struct file *file, struct vm_area_struct *vma)  in ecryptfs_mmap()  argument
188 	struct file *lower_file = ecryptfs_file_to_lower(file);  in ecryptfs_mmap()
190 	 * Don't allow mmap on top of file systems that don't support it  in ecryptfs_mmap()
196 	return generic_file_mmap(file, vma);  in ecryptfs_mmap()
201  * @inode: inode specifying file to open
202  * @file: Structure to return filled in
204  * Opens the file specified by inode.
208 static int ecryptfs_open(struct inode *inode, struct file *file)  in ecryptfs_open()  argument
212 	struct dentry *ecryptfs_dentry = file->f_path.dentry;  in ecryptfs_open()
219 	ecryptfs_set_file_private(file, file_info);  in ecryptfs_open()
238 			"the lower file for the dentry with name "  in ecryptfs_open()
244 	    == O_RDONLY && (file->f_flags & O_ACCMODE) != O_RDONLY) {  in ecryptfs_open()
246 		printk(KERN_WARNING "%s: Lower file is RO; eCryptfs "  in ecryptfs_open()
247 		       "file must hence be opened RO\n", __func__);  in ecryptfs_open()
251 		file, ecryptfs_inode_to_private(inode)->lower_file);  in ecryptfs_open()
263 			ecryptfs_file_to_private(file));  in ecryptfs_open()
270  * @inode: inode specifying file to open
271  * @file: Structure to return filled in
273  * Opens the file specified by inode.
277 static int ecryptfs_dir_open(struct inode *inode, struct file *file)  in ecryptfs_dir_open()  argument
279 	struct dentry *ecryptfs_dentry = file->f_path.dentry;  in ecryptfs_dir_open()
283 	struct file *lower_file;  in ecryptfs_dir_open()
288 	ecryptfs_set_file_private(file, file_info);  in ecryptfs_dir_open()
295 	lower_file = dentry_open(&path, file->f_flags, current_cred());  in ecryptfs_dir_open()
298 			"the lower file for the dentry with name "  in ecryptfs_dir_open()
304 	ecryptfs_set_file_lower(file, lower_file);  in ecryptfs_dir_open()
308 static int ecryptfs_flush(struct file *file, fl_owner_t td)  in ecryptfs_flush()  argument
310 	struct file *lower_file = ecryptfs_file_to_lower(file);  in ecryptfs_flush()
313 		filemap_write_and_wait(file->f_mapping);  in ecryptfs_flush()
320 static int ecryptfs_release(struct inode *inode, struct file *file)  in ecryptfs_release()  argument
324 			ecryptfs_file_to_private(file));  in ecryptfs_release()
328 static int ecryptfs_dir_release(struct inode *inode, struct file *file)  in ecryptfs_dir_release()  argument
330 	fput(ecryptfs_file_to_lower(file));  in ecryptfs_dir_release()
332 			ecryptfs_file_to_private(file));  in ecryptfs_dir_release()
336 static loff_t ecryptfs_dir_llseek(struct file *file, loff_t offset, int whence)  in ecryptfs_dir_llseek()  argument
338 	return vfs_llseek(ecryptfs_file_to_lower(file), offset, whence);  in ecryptfs_dir_llseek()
342 ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)  in ecryptfs_fsync()  argument
346 	rc = file_write_and_wait(file);  in ecryptfs_fsync()
350 	return vfs_fsync(ecryptfs_file_to_lower(file), datasync);  in ecryptfs_fsync()
353 static int ecryptfs_fasync(int fd, struct file *file, int flag)  in ecryptfs_fasync()  argument
356 	struct file *lower_file = NULL;  in ecryptfs_fasync()
358 	lower_file = ecryptfs_file_to_lower(file);  in ecryptfs_fasync()
365 ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)  in ecryptfs_unlocked_ioctl()  argument
367 	struct file *lower_file = ecryptfs_file_to_lower(file);  in ecryptfs_unlocked_ioctl()
380 		fsstack_copy_attr_all(file_inode(file), file_inode(lower_file));  in ecryptfs_unlocked_ioctl()
390 ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)  in ecryptfs_compat_ioctl()  argument
392 	struct file *lower_file = ecryptfs_file_to_lower(file);  in ecryptfs_compat_ioctl()
405 		fsstack_copy_attr_all(file_inode(file), file_inode(lower_file));  in ecryptfs_compat_ioctl()