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Diffstat (limited to 'image/sanitize.h')
| -rw-r--r-- | image/sanitize.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/image/sanitize.h b/image/sanitize.h new file mode 100644 index 00000000..fc07a8a9 --- /dev/null +++ b/image/sanitize.h @@ -0,0 +1,48 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * 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 021110-1307, USA. + */ + +#ifndef __BTRFS_IMAGE_SANITIZE_H__ +#define __BTRFS_IMAGE_SANITIZE_H__ + +#include "kerncompat.h" +#include "image/metadump.h" + +struct name { + struct rb_node n; + char *val; + char *sub; + u32 len; +}; + +/* + * Filenames and xattrs can be obfuscated so they don't appear in the image + * dump. In basic mode (NAMES) a random string will be generated but such names + * do not match the direntry hashes. The advanced mode (COLLISIONS) tries to + * generate names that appear random but also match the hashes. This however + * may take significantly more time than the basic mode. And may not even + * succeed. + */ +enum sanitize_mode { + SANITIZE_NONE, + SANITIZE_NAMES, + SANITIZE_COLLISIONS +}; + +void sanitize_name(enum sanitize_mode sanitize, struct rb_root *name_tree, + u8 *dst, struct extent_buffer *src, struct btrfs_key *key, + int slot); + +#endif |