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ext4 crypto: filename encryption facilities

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Signed-off-by: Uday Savagaonkar <savagaon@google.com>
Signed-off-by: Ildar Muslukhov <ildarm@google.com>
Signed-off-by: Michael Halcrow <mhalcrow@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Michael Halcrow
2015-04-12 00:56:17 -04:00
committed by Theodore Ts'o
parent c9c7429c2e
commit d5d0e8c720
5 changed files with 779 additions and 1 deletions
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7
fs/ext4/crypto_policy.c
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@@ -59,6 +59,13 @@ static int ext4_create_encryption_context_from_policy(
res = -EINVAL;
goto out;
}
if (!ext4_valid_filenames_enc_mode(policy->filenames_encryption_mode)) {
printk(KERN_WARNING
"%s: Invalid filenames encryption mode %d\n", __func__,
policy->filenames_encryption_mode);
res = -EINVAL;
goto out;
}
ctx.contents_encryption_mode = policy->contents_encryption_mode;
ctx.filenames_encryption_mode = policy->filenames_encryption_mode;
BUILD_BUG_ON(sizeof(ctx.nonce) != EXT4_KEY_DERIVATION_NONCE_SIZE);