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fscrypt: remove user-triggerable warning messages 

Several warning messages were not rate limited and were user-triggerable
from FS_IOC_SET_ENCRYPTION_POLICY.  These shouldn't really have been
there in the first place, but either way they aren't as useful now that
the error codes have been improved.  So just remove them.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Eric Biggers 2016-12-05 11:12:47 -08:00 committed by Theodore Ts'o
parent 8488cd96ff
commit 868e1bc64d
1 changed files with 2 additions and 13 deletions
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15
fs/crypto/policy.c
View File

@ -66,20 +66,12 @@ static int create_encryption_context_from_policy(struct inode *inode,
FS_KEY_DESCRIPTOR_SIZE);
if (!fscrypt_valid_contents_enc_mode(
policy->contents_encryption_mode)) {
printk(KERN_WARNING
"%s: Invalid contents encryption mode %d\n", __func__,
policy->contents_encryption_mode);
policy->contents_encryption_mode))
return -EINVAL;
}
if (!fscrypt_valid_filenames_enc_mode(
policy->filenames_encryption_mode)) {
printk(KERN_WARNING
"%s: Invalid filenames encryption mode %d\n", __func__,
policy->filenames_encryption_mode);
policy->filenames_encryption_mode))
return -EINVAL;
}
if (policy->flags & ~FS_POLICY_FLAGS_VALID)
return -EINVAL;
@ -126,9 +118,6 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
&policy);
} else if (!is_encryption_context_consistent_with_policy(inode,
&policy)) {
printk(KERN_WARNING
"%s: Policy inconsistent with encryption context\n",
__func__);
ret = -EEXIST;
}