[RFC][PATCH] send loginuid with audit messages

Hopefully my last patch for awhile. This patch: 1. Adds loginuid to the netlink_skb_parms 2. Prepends loginuid to AUDIT_USER log entries 3. Logs loginuid for audit control log entries 4. Stops sending current->audit_context to audit_log() for audit control messages. Once again, the current process has nothing to do with the sending process, so just send NULL for context. We probably will want more complete info on audit_add_rule and audit_del_rule messages. I assume this patch will need to go to net-devel? -- Serge Hallyn <serue(a)us.ibm.com&gt;