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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-09-07 14:36:30 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2018-10-23 13:48:29 +0200 |
| commit | 5125cfdff13a4da4c34a053cd67e99083aece028 (patch) | |
| tree | b2735cff5c7ee523b1b21ba1faa0b87c5a08c834 /fs/ubifs/super.c | |
| parent | fd6150051becd3a9f8039046e3af91fd9ef01e57 (diff) | |
| download | lwn-5125cfdff13a4da4c34a053cd67e99083aece028.tar.gz lwn-5125cfdff13a4da4c34a053cd67e99083aece028.zip | |
ubifs: Format changes for authentication support
This patch adds the changes to the on disk format needed for
authentication support. We'll add:
* a HMAC covering super block node
* a HMAC covering the master node
* a hash over the root index node to the master node
* a hash over the LPT to the master node
* a flag to the filesystem flag indicating the filesystem is
authenticated
* an authentication node necessary to authenticate the nodes written
to the journal heads while they are written.
* a HMAC of a well known message to the super block node to be able
to check if the correct key is provided
And finally, not visible in this patch, nevertheless explained here:
* hashes over the referenced child nodes in each branch of a index node
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/super.c')
| -rw-r--r-- | fs/ubifs/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 70a64e00f0a8..0194e3c0853f 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -579,6 +579,7 @@ static int init_constants_early(struct ubifs_info *c) c->ranges[UBIFS_REF_NODE].len = UBIFS_REF_NODE_SZ; c->ranges[UBIFS_TRUN_NODE].len = UBIFS_TRUN_NODE_SZ; c->ranges[UBIFS_CS_NODE].len = UBIFS_CS_NODE_SZ; + c->ranges[UBIFS_AUTH_NODE].len = UBIFS_AUTH_NODE_SZ; c->ranges[UBIFS_INO_NODE].min_len = UBIFS_INO_NODE_SZ; c->ranges[UBIFS_INO_NODE].max_len = UBIFS_MAX_INO_NODE_SZ; |