Re: [PATCH net-next v2] xfrm: introduce oseq-may-wrap flag

[Steffen Klassert]

On Sat, May 30, 2020 at 02:39:12PM +0200, Petr VanÄk wrote:
> RFC 4303 in section 3.3.3 suggests to disable anti-replay for manually
> distributed ICVs in which case the sender does not need to monitor or
> reset the counter. However, the sender still increments the counter and
> when it reaches the maximum value, the counter rolls over back to zero.
> 
> This patch introduces new extra_flag XFRM_SA_XFLAG_OSEQ_MAY_WRAP which
> allows sequence number to cycle in outbound packets if set. This flag is
> used only in legacy and bmp code, because esn should not be negotiated
> if anti-replay is disabled (see note in 3.3.3 section).
> 
> Signed-off-by: Petr VanÄk <pv@xxxxxxxxxx>

Now applied to ipsec-next, thanks a lot!