Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 379 deletions

diff --git a/ANDROID_3.4.5/fs/ecryptfs/file.c b/ANDROID_3.4.5/fs/ecryptfs/file.c
deleted file mode 100644
index 2b17f2f9..00000000
--- a/ANDROID_3.4.5/fs/ecryptfs/file.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/**
- * eCryptfs: Linux filesystem encryption layer
- *
- * Copyright (C) 1997-2004 Erez Zadok
- * Copyright (C) 2001-2004 Stony Brook University
- * Copyright (C) 2004-2007 International Business Machines Corp.
- *   Author(s): Michael A. Halcrow <mhalcrow@us.ibm.com>
- *   		Michael C. Thompson <mcthomps@us.ibm.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <linux/file.h>
-#include <linux/poll.h>
-#include <linux/slab.h>
-#include <linux/mount.h>
-#include <linux/pagemap.h>
-#include <linux/security.h>
-#include <linux/compat.h>
-#include <linux/fs_stack.h>
-#include "ecryptfs_kernel.h"
-
-/**
- * ecryptfs_read_update_atime
- *
- * generic_file_read updates the atime of upper layer inode.  But, it
- * doesn't give us a chance to update the atime of the lower layer
- * inode.  This function is a wrapper to generic_file_read.  It
- * updates the atime of the lower level inode if generic_file_read
- * returns without any errors. This is to be used only for file reads.
- * The function to be used for directory reads is ecryptfs_read.
- */
-static ssize_t ecryptfs_read_update_atime(struct kiocb *iocb,
-				const struct iovec *iov,
-				unsigned long nr_segs, loff_t pos)
-{
-	ssize_t rc;
-	struct path lower;
-	struct file *file = iocb->ki_filp;
-
-	rc = generic_file_aio_read(iocb, iov, nr_segs, pos);
-	/*
-	 * Even though this is a async interface, we need to wait
-	 * for IO to finish to update atime
-	 */
-	if (-EIOCBQUEUED == rc)
-		rc = wait_on_sync_kiocb(iocb);
-	if (rc >= 0) {
-		lower.dentry = ecryptfs_dentry_to_lower(file->f_path.dentry);
-		lower.mnt = ecryptfs_dentry_to_lower_mnt(file->f_path.dentry);
-		touch_atime(&lower);
-	}
-	return rc;
-}
-
-struct ecryptfs_getdents_callback {
-	void *dirent;
-	struct dentry *dentry;
-	filldir_t filldir;
-	int filldir_called;
-	int entries_written;
-};
-
-/* Inspired by generic filldir in fs/readdir.c */
-static int
-ecryptfs_filldir(void *dirent, const char *lower_name, int lower_namelen,
-		 loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct ecryptfs_getdents_callback *buf =
-	    (struct ecryptfs_getdents_callback *)dirent;
-	size_t name_size;
-	char *name;
-	int rc;
-
-	buf->filldir_called++;
-	rc = ecryptfs_decode_and_decrypt_filename(&name, &name_size,
-						  buf->dentry, lower_name,
-						  lower_namelen);
-	if (rc) {
-		printk(KERN_ERR "%s: Error attempting to decode and decrypt "
-		       "filename [%s]; rc = [%d]\n", __func__, lower_name,
-		       rc);
-		goto out;
-	}
-	rc = buf->filldir(buf->dirent, name, name_size, offset, ino, d_type);
-	kfree(name);
-	if (rc >= 0)
-		buf->entries_written++;
-out:
-	return rc;
-}
-
-/**
- * ecryptfs_readdir
- * @file: The eCryptfs directory file
- * @dirent: Directory entry handle
- * @filldir: The filldir callback function
- */
-static int ecryptfs_readdir(struct file *file, void *dirent, filldir_t filldir)
-{
-	int rc;
-	struct file *lower_file;
-	struct inode *inode;
-	struct ecryptfs_getdents_callback buf;
-
-	lower_file = ecryptfs_file_to_lower(file);
-	lower_file->f_pos = file->f_pos;
-	inode = file->f_path.dentry->d_inode;
-	memset(&buf, 0, sizeof(buf));
-	buf.dirent = dirent;
-	buf.dentry = file->f_path.dentry;
-	buf.filldir = filldir;
-	buf.filldir_called = 0;
-	buf.entries_written = 0;
-	rc = vfs_readdir(lower_file, ecryptfs_filldir, (void *)&buf);
-	file->f_pos = lower_file->f_pos;
-	if (rc < 0)
-		goto out;
-	if (buf.filldir_called && !buf.entries_written)
-		goto out;
-	if (rc >= 0)
-		fsstack_copy_attr_atime(inode,
-					lower_file->f_path.dentry->d_inode);
-out:
-	return rc;
-}
-
-static void ecryptfs_vma_close(struct vm_area_struct *vma)
-{
-	filemap_write_and_wait(vma->vm_file->f_mapping);
-}
-
-static const struct vm_operations_struct ecryptfs_file_vm_ops = {
-	.close		= ecryptfs_vma_close,
-	.fault		= filemap_fault,
-};
-
-static int ecryptfs_file_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	int rc;
-
-	rc = generic_file_mmap(file, vma);
-	if (!rc)
-		vma->vm_ops = &ecryptfs_file_vm_ops;
-
-	return rc;
-}
-
-struct kmem_cache *ecryptfs_file_info_cache;
-
-/**
- * ecryptfs_open
- * @inode: inode speciying file to open
- * @file: Structure to return filled in
- *
- * Opens the file specified by inode.
- *
- * Returns zero on success; non-zero otherwise
- */
-static int ecryptfs_open(struct inode *inode, struct file *file)
-{
-	int rc = 0;
-	struct ecryptfs_crypt_stat *crypt_stat = NULL;
-	struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
-	struct dentry *ecryptfs_dentry = file->f_path.dentry;
-	/* Private value of ecryptfs_dentry allocated in
-	 * ecryptfs_lookup() */
-	struct dentry *lower_dentry;
-	struct ecryptfs_file_info *file_info;
-
-	mount_crypt_stat = &ecryptfs_superblock_to_private(
-		ecryptfs_dentry->d_sb)->mount_crypt_stat;
-	if ((mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
-	    && ((file->f_flags & O_WRONLY) || (file->f_flags & O_RDWR)
-		|| (file->f_flags & O_CREAT) || (file->f_flags & O_TRUNC)
-		|| (file->f_flags & O_APPEND))) {
-		printk(KERN_WARNING "Mount has encrypted view enabled; "
-		       "files may only be read\n");
-		rc = -EPERM;
-		goto out;
-	}
-	/* Released in ecryptfs_release or end of function if failure */
-	file_info = kmem_cache_zalloc(ecryptfs_file_info_cache, GFP_KERNEL);
-	ecryptfs_set_file_private(file, file_info);
-	if (!file_info) {
-		ecryptfs_printk(KERN_ERR,
-				"Error attempting to allocate memory\n");
-		rc = -ENOMEM;
-		goto out;
-	}
-	lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry);
-	crypt_stat = &ecryptfs_inode_to_private(inode)->crypt_stat;
-	mutex_lock(&crypt_stat->cs_mutex);
-	if (!(crypt_stat->flags & ECRYPTFS_POLICY_APPLIED)) {
-		ecryptfs_printk(KERN_DEBUG, "Setting flags for stat...\n");
-		/* Policy code enabled in future release */
-		crypt_stat->flags |= (ECRYPTFS_POLICY_APPLIED
-				      | ECRYPTFS_ENCRYPTED);
-	}
-	mutex_unlock(&crypt_stat->cs_mutex);
-	rc = ecryptfs_get_lower_file(ecryptfs_dentry, inode);
-	if (rc) {
-		printk(KERN_ERR "%s: Error attempting to initialize "
-			"the lower file for the dentry with name "
-			"[%s]; rc = [%d]\n", __func__,
-			ecryptfs_dentry->d_name.name, rc);
-		goto out_free;
-	}
-	if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_ACCMODE)
-	    == O_RDONLY && (file->f_flags & O_ACCMODE) != O_RDONLY) {
-		rc = -EPERM;
-		printk(KERN_WARNING "%s: Lower file is RO; eCryptfs "
-		       "file must hence be opened RO\n", __func__);
-		goto out_put;
-	}
-	ecryptfs_set_file_lower(
-		file, ecryptfs_inode_to_private(inode)->lower_file);
-	if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) {
-		ecryptfs_printk(KERN_DEBUG, "This is a directory\n");
-		mutex_lock(&crypt_stat->cs_mutex);
-		crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED);
-		mutex_unlock(&crypt_stat->cs_mutex);
-		rc = 0;
-		goto out;
-	}
-	mutex_lock(&crypt_stat->cs_mutex);
-	if (!(crypt_stat->flags & ECRYPTFS_POLICY_APPLIED)
-	    || !(crypt_stat->flags & ECRYPTFS_KEY_VALID)) {
-		rc = ecryptfs_read_metadata(ecryptfs_dentry);
-		if (rc) {
-			ecryptfs_printk(KERN_DEBUG,
-					"Valid headers not found\n");
-			if (!(mount_crypt_stat->flags
-			      & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED)) {
-				rc = -EIO;
-				printk(KERN_WARNING "Either the lower file "
-				       "is not in a valid eCryptfs format, "
-				       "or the key could not be retrieved. "
-				       "Plaintext passthrough mode is not "
-				       "enabled; returning -EIO\n");
-				mutex_unlock(&crypt_stat->cs_mutex);
-				goto out_put;
-			}
-			rc = 0;
-			crypt_stat->flags &= ~(ECRYPTFS_I_SIZE_INITIALIZED
-					       | ECRYPTFS_ENCRYPTED);
-			mutex_unlock(&crypt_stat->cs_mutex);
-			goto out;
-		}
-	}
-	mutex_unlock(&crypt_stat->cs_mutex);
-	ecryptfs_printk(KERN_DEBUG, "inode w/ addr = [0x%p], i_ino = "
-			"[0x%.16lx] size: [0x%.16llx]\n", inode, inode->i_ino,
-			(unsigned long long)i_size_read(inode));
-	goto out;
-out_put:
-	ecryptfs_put_lower_file(inode);
-out_free:
-	kmem_cache_free(ecryptfs_file_info_cache,
-			ecryptfs_file_to_private(file));
-out:
-	return rc;
-}
-
-static int ecryptfs_flush(struct file *file, fl_owner_t td)
-{
-	return file->f_mode & FMODE_WRITE
-	       ? filemap_write_and_wait(file->f_mapping) : 0;
-}
-
-static int ecryptfs_release(struct inode *inode, struct file *file)
-{
-	ecryptfs_put_lower_file(inode);
-	kmem_cache_free(ecryptfs_file_info_cache,
-			ecryptfs_file_to_private(file));
-	return 0;
-}
-
-static int
-ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
-{
-	int rc = 0;
-
-	rc = generic_file_fsync(file, start, end, datasync);
-	if (rc)
-		goto out;
-	rc = vfs_fsync_range(ecryptfs_file_to_lower(file), start, end,
-			     datasync);
-out:
-	return rc;
-}
-
-static int ecryptfs_fasync(int fd, struct file *file, int flag)
-{
-	int rc = 0;
-	struct file *lower_file = NULL;
-
-	lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file->f_op && lower_file->f_op->fasync)
-		rc = lower_file->f_op->fasync(fd, lower_file, flag);
-	return rc;
-}
-
-static long
-ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct file *lower_file = NULL;
-	long rc = -ENOTTY;
-
-	if (ecryptfs_file_to_private(file))
-		lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file && lower_file->f_op && lower_file->f_op->unlocked_ioctl)
-		rc = lower_file->f_op->unlocked_ioctl(lower_file, cmd, arg);
-	return rc;
-}
-
-#ifdef CONFIG_COMPAT
-static long
-ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct file *lower_file = NULL;
-	long rc = -ENOIOCTLCMD;
-
-	if (ecryptfs_file_to_private(file))
-		lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file && lower_file->f_op && lower_file->f_op->compat_ioctl)
-		rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
-	return rc;
-}
-#endif
-
-const struct file_operations ecryptfs_dir_fops = {
-	.readdir = ecryptfs_readdir,
-	.read = generic_read_dir,
-	.unlocked_ioctl = ecryptfs_unlocked_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = ecryptfs_compat_ioctl,
-#endif
-	.open = ecryptfs_open,
-	.flush = ecryptfs_flush,
-	.release = ecryptfs_release,
-	.fsync = ecryptfs_fsync,
-	.fasync = ecryptfs_fasync,
-	.splice_read = generic_file_splice_read,
-	.llseek = default_llseek,
-};
-
-const struct file_operations ecryptfs_main_fops = {
-	.llseek = generic_file_llseek,
-	.read = do_sync_read,
-	.aio_read = ecryptfs_read_update_atime,
-	.write = do_sync_write,
-	.aio_write = generic_file_aio_write,
-	.readdir = ecryptfs_readdir,
-	.unlocked_ioctl = ecryptfs_unlocked_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = ecryptfs_compat_ioctl,
-#endif
-	.mmap = ecryptfs_file_mmap,
-	.open = ecryptfs_open,
-	.flush = ecryptfs_flush,
-	.release = ecryptfs_release,
-	.fsync = ecryptfs_fsync,
-	.fasync = ecryptfs_fasync,
-	.splice_read = generic_file_splice_read,
-};