LSM-neutral Audit (SELinux audit separation)

Hi everybody,

A series of 9 patches to let Audit be LSM netural. This is done 
for proper future audit<->SMACK integration which will also be
useful for any future LSM.

Basically, patches add below new LSM hooks:

1- secid extraction:
inode_getsecid(inode, secid)
ipc_getsecid(ipcp, secid)

2- LSM-specific Audit rules manipulation:
audit_rule_init(field, op, rulestr, lsmrule)
audit_rule_known(krule)
audit_rule_match(secid, field, op, rule, actx)
audit_rule_free(rule)

and remove ,now redundant, equivalent SELinux exported interfaces.

Initial work and idea by: Casey Schaufler <casey@schaufler-ca.com>
Thanks to Paul Moore <paul.moore@hp.com> for his deep review of first
version.

 include/linux/audit.h            |   29 ++++++++
 include/linux/security.h         |  102 +++++++++++++++++++++++++++++
 include/linux/selinux.h          |  134 ---------------------------------------
 kernel/audit.c                   |   24 ++----
 kernel/audit.h                   |   25 -------
 kernel/auditfilter.c             |   99 ++++++++++------------------
 kernel/auditsc.c                 |   74 +++++++++++----------
 net/netlink/af_netlink.c         |    3 +-
 security/dummy.c                 |   47 +++++++++++++
 security/security.c              |   35 ++++++++++
 security/selinux/exports.c       |   42 ------------
 security/selinux/hooks.c         |   27 +++++++
 security/selinux/include/audit.h |   65 ++++++++++++++++++
 security/selinux/ss/services.c   |   45 +++++++++----
 14 files changed, 420 insertions(+), 331 deletions(-)

Regards,

-- 

"Better to light a candle, than curse the darkness"

Ahmed S. Darwish
Homepage: http://darwish.07.googlepages.com
Blog: http://darwish-07.blogspot.com

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