[PATCH]Introduce generalized hooks for getting and setting inode secctx.

[James Morris]

On Wed, 23 Apr 2008, David P. Quigley wrote:

> 
> This patch set does two things. First it factors the section of vfs_setxattr
> that does the real work into a helper function. This allows LSMs the ability 
> to set the xattrs they need without hitting the permission check inside
> vfs_setxattr each time. Second it introduces three new hooks
> inode_{get,set}secctx, and inode_notifysecctx.
> 
> The first hook retreives all security information the LSM feels is relavent in
> the form of a security context. The second hook given this context can sets
> both the in-core and on-disk store for the particular inode. The third hook is
> used to notify the in-core inode of a change to it's security state.
> 
> This is the fourth revision of this patch set which takes into account
> concerns by Casey Schaufler, and Christop Hellwig.

Cristoph, Casey -- any chance of getting ack or nack on this before the 
merge window closes?

Thanks.


> 
> fs/xattr.c               |   57 ++++++++++++++++++++++++++++++++++-----------
> include/linux/security.h |   50 ++++++++++++++++++++++++++++++++++++++++
> include/linux/xattr.h    |    1 +
> security/dummy.c         |   17 +++++++++++++
> security/security.c      |   18 ++++++++++++++
> security/selinux/hooks.c |   28 ++++++++++++++++++++++
> 6 files changed, 157 insertions(+), 14 deletions(-)
> 
> 
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-- 
James Morris
<jmorris at namei.org>