On Mon, May 15, 2017 at 04:51:49PM +0200, Phil Sutter wrote:
> When committing a transaction, report PID and name of user space process
> which initiated it.
> 
> Signed-off-by: Phil Sutter <[email protected]>
> ---
>  include/uapi/linux/netfilter/nf_tables.h | 16 +++++++++++
>  net/netfilter/nf_tables_api.c            | 49 
> ++++++++++++++++++++++++++++++++
>  2 files changed, 65 insertions(+)
> 
> diff --git a/include/uapi/linux/netfilter/nf_tables.h 
> b/include/uapi/linux/netfilter/nf_tables.h
> index 683f6f88fcace..7c012690a5f02 100644
> --- a/include/uapi/linux/netfilter/nf_tables.h
> +++ b/include/uapi/linux/netfilter/nf_tables.h
> @@ -90,6 +90,7 @@ enum nft_verdicts {
>   * @NFT_MSG_GETOBJ: get a stateful object (enum nft_obj_attributes)
>   * @NFT_MSG_DELOBJ: delete a stateful object (enum nft_obj_attributes)
>   * @NFT_MSG_GETOBJ_RESET: get and reset a stateful object (enum 
> nft_obj_attributes)
> + * @NFT_MSG_PROC_INFO: get info about user space process which initiated the 
> transaction
>   */
>  enum nf_tables_msg_types {
>       NFT_MSG_NEWTABLE,
> @@ -114,6 +115,7 @@ enum nf_tables_msg_types {
>       NFT_MSG_GETOBJ,
>       NFT_MSG_DELOBJ,
>       NFT_MSG_GETOBJ_RESET,
> +     NFT_MSG_PROC_INFO,

No need for a new message. You can place this into existing the NEWGEN
messages.
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