Re: [PATCH V5 07/13] audit: dump namespace IDs for pid on receipt of AUDIT_NS_INFO

[Serge E. Hallyn]

Quoting Richard Guy Briggs (rgb@xxxxxxxxxx):
> When a task with CAP_AUDIT_CONTROL sends a NETLINK_AUDIT message of type
> AUDIT_NS_INFO with a PID of interest, dump the namespace IDs of that task to
> the audit log.
> ---

Acked-by: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>

>  kernel/audit.c |   14 ++++++++++++++
>  1 files changed, 14 insertions(+), 0 deletions(-)
> 
> diff --git a/kernel/audit.c b/kernel/audit.c
> index a17a09f..cc63445 100644
> --- a/kernel/audit.c
> +++ b/kernel/audit.c
> @@ -671,6 +671,7 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
>  	case AUDIT_TTY_SET:
>  	case AUDIT_TRIM:
>  	case AUDIT_MAKE_EQUIV:
> +	case AUDIT_NS_INFO:
>  		/* Only support auditd and auditctl in initial pid namespace
>  		 * for now. */
>  		if ((task_active_pid_ns(current) != &init_pid_ns))
> @@ -1068,6 +1069,19 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
>  		audit_log_end(ab);
>  		break;
>  	}
> +	case AUDIT_NS_INFO:
> +#ifdef CONFIG_NAMESPACES
> +	{
> +		struct task_struct *tsk;
> +
> +		rcu_read_lock();
> +		tsk = find_task_by_vpid(*(pid_t *)data);
> +		rcu_read_unlock();
> +		audit_log_ns_info(tsk);
> +	}
> +#else /* CONFIG_NAMESPACES */
> +		err = -EOPNOTSUPP;
> +#endif /* CONFIG_NAMESPACES */
>  	default:
>  		err = -EINVAL;
>  		break;
> -- 
> 1.7.1
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