Re: [PATCH net] sctp: count singleton chunks in assoc user stats

[Marcelo Ricardo Leitner]

On Tue, Mar 29, 2022 at 01:13:36PM +1000, Jamie Bainbridge wrote:
> singleton chunks (INIT, and less importantly SHUTDOWN and SHUTDOWN-
> COMPLETE) are not counted in SCTP_GET_ASOC_STATS "sas_octrlchunks"
> counter available to the assoc owner.
> 
> INIT (and the SHUTDOWN chunks) are control chunks so they should be
> counted as such.
> 
> Add counting of singleton chunks so they are properly accounted for.
> 
> Signed-off-by: Jamie Bainbridge <jamie.bainbridge@xxxxxxxxx>
> ---
>  net/sctp/outqueue.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
> index a18609f608fb786b2532a4febbd72a9737ab906c..e2d7c955f07c80da17c7525159aaf8a053432ae3 100644
> --- a/net/sctp/outqueue.c
> +++ b/net/sctp/outqueue.c
> @@ -914,6 +914,7 @@ static void sctp_outq_flush_ctrl(struct sctp_flush_ctx *ctx)
>  				ctx->asoc->base.sk->sk_err = -error;
>  				return;
>  			}
> +			ctx->asoc->stats.octrlchunks++;
>  			break;
>  
>  		case SCTP_CID_ABORT:

Please also fix it for pmtu probes a bit below. They are heartbeats
being handled specially as singletons as well.

  Marcelo