linux-kernel - Re: [PATCH v2 0/5] eCryptfs key locking patches

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Date:	Tue, 22 Mar 2011 16:32:11 -0500
From:	Tyler Hicks <tyhicks@...ux.vnet.ibm.com>
To:	Roberto Sassu <roberto.sassu@...ito.it>
Cc:	kirkland@...onical.com, dhowells@...hat.com, jmorris@...ei.org,
	linux-fsdevel@...r.kernel.org, keyrings@...ux-nfs.org,
	linux-kernel@...r.kernel.org, ecryptfs-devel@...ts.launchpad.net
Subject: Re: [PATCH v2 0/5] eCryptfs key locking patches

On Mon Mar 21, 2011 at 04:00:50PM +0100, Roberto Sassu <roberto.sassu@...ito.it> wrote:
> This patch set modifies the eCryptfs code in order to lock requested keys
> while authentication tokens are used to encrypt or decrypt files.
> 
> Changelog:
>   - removed patch "eCryptfs: ecryptfs_keyring_auth_tok_for_sig() bug fix"
> 	(already applied to the eCryptfs git repository at git.kernel.org);
>   - added new patch "eCryptfs: removed num_global_auth_toks from 
> 	ecryptfs_mount_crypt_stat";
>   - patch 3/5: avoid invalidating a global authentication token only if
> 	key_validate() returns the error -EKEYEXPIRED;
>   - patch 3/5: added new function
> 	process_find_global_auth_tok_for_sig_err() to handle errors
> 	returned by ecryptfs_find_global_auth_tok_for_sig();
>   - patch 3/5: return an error in the function
> 	ecryptfs_generate_key_packet_set() if at least one global
> 	authentication token cannot be retrieved.

Thanks Roberto - This revision looks good to me. I'll keep the patch set
in my tree for another day or two, to see if anyone else has comments,
and then set up a pull request to try to get it into the rc1 release.

Tyler

> 
> Roberto Sassu
> 
> 
> Roberto Sassu (5):
>   eCryptfs: removed num_global_auth_toks from ecryptfs_mount_crypt_stat
>   eCryptfs: modified size of keysig in the ecryptfs_key_sig structure
>   eCryptfs: verify authentication tokens before their use
>   eCryptfs: move ecryptfs_find_auth_tok_for_sig() call before
>     mutex_lock
>   eCryptfs: write lock requested keys
> 
>  fs/ecryptfs/crypto.c          |    1 -
>  fs/ecryptfs/ecryptfs_kernel.h |    4 +-
>  fs/ecryptfs/keystore.c        |  280 ++++++++++++++++++++++++++---------------
>  fs/ecryptfs/main.c            |    8 +-
>  4 files changed, 185 insertions(+), 108 deletions(-)
> 
> -- 
> 1.7.4
> 


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