Re: [PATCH ghak90 (was ghak32) V4 03/10] audit: log container info of syscalls

On 2018-10-25 17:57, Steve Grubb wrote: > On Thu, 25 Oct 2018 08:27:32 -0400 > Richard Guy Briggs <rgb(a)redhat.com&gt; wrote: > > > On 2018-10-25 06:49, Paul Moore wrote: > > > On Thu, Oct 25, 2018 at 2:06 AM Steve Grubb <sgrubb(a)redhat.com&gt; > > > wrote: > > > > On Wed, 24 Oct 2018 20:42:55 -0400 > > > > Richard Guy Briggs <rgb(a)redhat.com&gt; wrote: > > > > > On 2018-10-24 16:55, Paul Moore wrote: > > > > > > On Wed, Oct 24, 2018 at 11:15 AM Richard Guy Briggs > > > > > > <rgb(a)redhat.com&gt; wrote: > > > > > > > On 2018-10-19 19:16, Paul Moore wrote: > > > > > > > > On Sun, Aug 5, 2018 at 4:32 AM Richard Guy Briggs > > > > > > > > <rgb(a)redhat.com&gt; wrote: > > > > > > ... > > > > > > > > > > > > +/* > > > > > > > > > + * audit_log_contid - report container info > > > > > > > > > + * @tsk: task to be recorded > > > > > > > > > + * @context: task or local context for record > > > > > > > > > + * @op: contid string description > > > > > > > > > + */ > > > > > > > > > +int audit_log_contid(struct task_struct *tsk, > > > > > > > > > + struct audit_context > > > > > > > > > *context, char *op) +{ > > > > > > > > > + struct audit_buffer *ab; > > > > > > > > > + > > > > > > > > > + if (!audit_contid_set(tsk)) > > > > > > > > > + return 0; > > > > > > > > > + /* Generate AUDIT_CONTAINER record with > > > > > > > > > container ID */ > > > > > > > > > + ab = audit_log_start(context, GFP_KERNEL, > > > > > > > > > AUDIT_CONTAINER); > > > > > > > > > + if (!ab) > > > > > > > > > + return -ENOMEM; > > > > > > > > > + audit_log_format(ab, "op=%s contid=%llu", > > > > > > > > > + op, audit_get_contid(tsk)); > > > > > > > > > + audit_log_end(ab); > > > > > > > > > + return 0; > > > > > > > > > +} > > > > > > > > > +EXPORT_SYMBOL(audit_log_contid); > > > > > > > > > > > > > > > > As discussed in the previous iteration of the patch, I > > > > > > > > prefer AUDIT_CONTAINER_ID here over AUDIT_CONTAINER. If > > > > > > > > you feel strongly about keeping it as-is with > > > > > > > > AUDIT_CONTAINER I suppose I could live with that, but it > > > > > > > > is isn't my first choice. > > > > > > > > > > > > > > I don't have a strong opinion on this one, mildly > > > > > > > preferring the shorter one only because it is shorter. > > > > > > > > > > > > We already have multiple AUDIT_CONTAINER* record types, so it > > > > > > seems as though we should use "AUDIT_CONTAINER" as a prefix > > > > > > of sorts, rather than a type itself. > > > > > > > > > > I'm fine with that. I'd still like to hear Steve's input. He > > > > > had stronger opinions than me. > > > > > > > > The creation event should be separate and distinct from the > > > > continuing use when its used as a supplemental record. IOW, > > > > binding the ID to a container is part of the lifecycle and needs > > > > to be kept distinct. > > > > > > Steve's comment is pretty ambiguous when it comes to AUDIT_CONTAINER > > > vs AUDIT_CONTAINER_ID, but one could argue that AUDIT_CONTAINER_ID > > > helps distinguish the audit container id marking record and gets to > > > what I believe is the spirit of Steve's comment. Taking this in > > > context with my previous remarks, let's switch to using > > > AUDIT_CONTAINER_ID. > > > > I suspect Steve is mixing up AUDIT_CONTAINER_OP with > > AUDIT_CONTAINER_ID, confusing the fact that they are two seperate > > records. As a summary, the suggested records are: > > CONTAINER_OP audit container identifier creation > > CONTAINER audit container identifier aux record to an > > event > > > > and what Paul is suggesting (which is fine by me) is: > > CONTAINER_OP audit container identifier creation event > > CONTAINER_ID audit container identifier aux record to > > an event > > > > Steve, please indicate you are fine with this. > > I thought it was: It *was*. It was changed at Paul's request in this v3 thread: https://www.redhat.com/archives/linux-audit/2018-July/msg00087.html And listed in the examples and changelog to this v4 patchset: https://www.redhat.com/archives/linux-audit/2018-July/msg00178.html It is also listed in this userspace patchset update v4 (which should also have had a changelog added to it, note to self...): https://www.redhat.com/archives/linux-audit/2018-July/msg00189.html I realize it is hard to keep up with all the detail changes in these patchsets... > CONTAINER_ID audit container identifier creation event > CONTAINER audit container identifier aux record to an event > > Or vice versa. Don't mix up creation of the identifier with operations. Exactly what I'm trying to avoid... Worded another way: "Don't mix up the creation operation with routine reporting of the identifier in events." Steve, can you and Paul discuss and agree on what they should be called? I don't have a horse in this race, but I need to record the result of that run. ;-)