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| author |   Sascha Hauer <s.hauer@pengutronix.de> | 2018-09-07 14:36:35 +0200 |
|---|---|---|
| committer |   Richard Weinberger <richard@nod.at> | 2018-10-23 13:48:39 +0200 |
| commit | 16a26b20d2afd0cf063816725b45b12e78d5bb31 (patch) | |
| tree | 3537a8eecd5da38204e443a887f4d1ed9f3cbcbe /fs/ubifs/ubifs.h | |
| parent | ubifs: Add hashes to the tree node cache (diff) | |
| download | linux-dev-16a26b20d2afd0cf063816725b45b12e78d5bb31.tar.xz linux-dev-16a26b20d2afd0cf063816725b45b12e78d5bb31.zip | |
ubifs: authentication: Add hashes to index nodes
With this patch the hashes over the index nodes stored in the tree node
cache are written to flash and are checked when read back from flash.
The hash of the root index node is stored in the master node.
During journal replay the hashes are regenerated from the read nodes
and stored in the tree node cache. This means the nodes must previously
be authenticated by other means. This is done in a later patch.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/ubifs.h')
| -rw-r--r-- | fs/ubifs/ubifs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index a7e423347e6d..67bfd58d28d4 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -765,6 +765,8 @@ struct ubifs_zbranch { * struct ubifs_znode - in-memory representation of an indexing node. * @parent: parent znode or NULL if it is the root * @cnext: next znode to commit + * @cparent: parent node for this commit + * @ciip: index in cparent's zbranch array * @flags: znode flags (%DIRTY_ZNODE, %COW_ZNODE or %OBSOLETE_ZNODE) * @time: last access time (seconds) * @level: level of the entry in the TNC tree @@ -782,6 +784,8 @@ struct ubifs_zbranch { struct ubifs_znode { struct ubifs_znode *parent; struct ubifs_znode *cnext; + struct ubifs_znode *cparent; + int ciip; unsigned long flags; time64_t time; int level; |