Esempio n. 1
0
static const char *ecryptfs_follow_link(struct dentry *dentry, void **cookie)
{
	size_t len;
	char *buf = ecryptfs_readlink_lower(dentry, &len);
	if (IS_ERR(buf))
		return buf;
	fsstack_copy_attr_atime(d_inode(dentry),
				d_inode(ecryptfs_dentry_to_lower(dentry)));
	buf[len] = '\0';
	return *cookie = buf;
}
Esempio n. 2
0
static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
	size_t len;
	char *buf = ecryptfs_readlink_lower(dentry, &len);
	if (IS_ERR(buf))
		goto out;
	fsstack_copy_attr_atime(dentry->d_inode,
				ecryptfs_dentry_to_lower(dentry)->d_inode);
	buf[len] = '\0';
out:
	nd_set_link(nd, buf);
	return NULL;
}
Esempio n. 3
0
static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
	char *buf;
	size_t len = PATH_MAX;
	int rc;

	rc = ecryptfs_readlink_lower(dentry, &buf, &len);
	if (rc)
		goto out;
	fsstack_copy_attr_atime(dentry->d_inode,
				ecryptfs_dentry_to_lower(dentry)->d_inode);
	buf[len] = '\0';
out:
	nd_set_link(nd, buf);
	return NULL;
}
Esempio n. 4
0
static int
ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
{
	char *kbuf;
	size_t kbufsiz, copied;
	int rc;

	rc = ecryptfs_readlink_lower(dentry, &kbuf, &kbufsiz);
	if (rc)
		goto out;
	copied = min_t(size_t, bufsiz, kbufsiz);
	rc = copy_to_user(buf, kbuf, copied) ? -EFAULT : copied;
	kfree(kbuf);
	fsstack_copy_attr_atime(dentry->d_inode,
				ecryptfs_dentry_to_lower(dentry)->d_inode);
out:
	return rc;
}
Esempio n. 5
0
static const char *ecryptfs_get_link(struct dentry *dentry,
				     struct inode *inode,
				     struct delayed_call *done)
{
	size_t len;
	char *buf;

	if (!dentry)
		return ERR_PTR(-ECHILD);

	buf = ecryptfs_readlink_lower(dentry, &len);
	if (IS_ERR(buf))
		return buf;
	fsstack_copy_attr_atime(d_inode(dentry),
				d_inode(ecryptfs_dentry_to_lower(dentry)));
	buf[len] = '\0';
	set_delayed_call(done, kfree_link, buf);
	return buf;
}