static int cifs_filldir(char *pfindEntry, struct file *file,
	filldir_t filldir, void *direntry, char *scratch_buf, int max_len)
{
	int rc = 0;
	struct qstr qstring;
	struct cifsFileInfo *pCifsF;
	unsigned int obj_type;
	__u64  inum;
	struct cifs_sb_info *cifs_sb;
	struct inode *tmp_inode;
	struct dentry *tmp_dentry;

	/* get filename and len into qstring */
	/* get dentry */
	/* decide whether to create and populate ionde */
	if ((direntry == NULL) || (file == NULL))
		return -EINVAL;

	pCifsF = file->private_data;

	if ((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL))
		return -ENOENT;

	rc = cifs_entry_is_dot(pfindEntry, pCifsF);
	/* skip . and .. since we added them first */
	if (rc != 0)
		return 0;

	cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);

	qstring.name = scratch_buf;
	rc = cifs_get_name_from_search_buf(&qstring, pfindEntry,
			pCifsF->srch_inf.info_level,
			pCifsF->srch_inf.unicode, cifs_sb,
			max_len,
			&inum /* returned */);

	if (rc)
		return rc;

	/* only these two infolevels return valid inode numbers */
	if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX ||
	    pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
		rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
					&inum);
	else
		rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
					NULL);

	if ((tmp_inode == NULL) || (tmp_dentry == NULL))
		return -ENOMEM;

	/* we pass in rc below, indicating whether it is a new inode,
	   so we can figure out whether to invalidate the inode cached
	   data if the file has changed */
	if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX)
		unix_fill_in_inode(tmp_inode,
				   (FILE_UNIX_INFO *)pfindEntry,
				   &obj_type, rc);
	else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD)
		fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */,
				pfindEntry, &obj_type, rc);
	else
		fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc);

	if (rc) /* new inode - needs to be tied to dentry */ {
		d_instantiate(tmp_dentry, tmp_inode);
		if (rc == 2)
			d_rehash(tmp_dentry);
	}


	rc = filldir(direntry, qstring.name, qstring.len, file->f_pos,
		     tmp_inode->i_ino, obj_type);
	if (rc) {
		cFYI(1, ("filldir rc = %d", rc));
		/* we can not return filldir errors to the caller
		since they are "normal" when the stat blocksize
		is too small - we return remapped error instead */
		rc = -EOVERFLOW;
	}

	dput(tmp_dentry);
	return rc;
}
Beispiel #2
0
static int cifs_filldir(char *pfindEntry, struct file *file,
	filldir_t filldir, void *direntry, char *scratch_buf)
{
	int rc = 0;
	struct qstr qstring;
	struct cifsFileInfo * pCifsF;
	unsigned obj_type;
	ino_t  inum;
	struct cifs_sb_info * cifs_sb;
	struct inode *tmp_inode;
	struct dentry *tmp_dentry;

	/* get filename and len into qstring */
	/* get dentry */
	/* decide whether to create and populate ionde */
	if((direntry == NULL) || (file == NULL))
		return -EINVAL;

	pCifsF = file->private_data;
	
	if((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL))
		return -ENOENT;

	if(file->f_dentry == NULL)
		return -ENOENT;

	cifs_sb = CIFS_SB(file->f_dentry->d_sb);

	qstring.name = scratch_buf;
	rc = cifs_get_name_from_search_buf(&qstring,pfindEntry,
			pCifsF->srch_inf.info_level,
			pCifsF->srch_inf.unicode,cifs_sb,
			&inum /* returned */);

	if(rc)
		return rc;

	rc = construct_dentry(&qstring,file,&tmp_inode, &tmp_dentry);
	if((tmp_inode == NULL) || (tmp_dentry == NULL))
		return -ENOMEM;

	if(rc) {
		/* inode created, we need to hash it with right inode number */
		if(inum != 0) {
			/* BB fixme - hash the 2 32 quantities bits together if necessary BB */
			tmp_inode->i_ino = inum;
		}
		insert_inode_hash(tmp_inode);
	}

	/* we pass in rc below, indicating whether it is a new inode,
	   so we can figure out whether to invalidate the inode cached
	   data if the file has changed */
	if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) {
		unix_fill_in_inode(tmp_inode,
				   (FILE_UNIX_INFO *)pfindEntry,&obj_type, rc);
	} else {
		fill_in_inode(tmp_inode,
			      (FILE_DIRECTORY_INFO *)pfindEntry,&obj_type, rc);
	}
	
	rc = filldir(direntry,qstring.name,qstring.len,file->f_pos,tmp_inode->i_ino,obj_type);
	if(rc) {
		cFYI(1,("filldir rc = %d",rc));
	}

	dput(tmp_dentry);
	return rc;
}