Re: [PATCH 2/2] extensions: restore matching any SPI id by default

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On Friday 2015-08-07 13:07, Pablo Neira Ayuso wrote:
>On Wed, Jul 15, 2015 at 07:46:05PM +0200, Jan Engelhardt wrote:
>[...]
>> Printing it differently is a separate concern one can think about,
>> but with a separate patch. :-)
>
>Either way...
>
>Will you send me that follow up patch so I can get this applied?


When specifying e.g. "-m policy --dir in", the xt_policy kernel
module will indeedx test for much more than just the direction, but
the additional tests it does on other fields are idempotent after
all.

I oppose that idempotent expressions in rules, implicit or explicit,
shall lead to output when the ruleset is read back. A rule like

	-A INPUT -m policy --dir in

should not, by default, cause `iptables -S` to output a
rule with terms essentially irrelevant to the human reader.

	-A INPUT -m policy --dir in --reqid 0:4294967295 --spi
	0:4294967295 proto 0 --mode 0 --tunnel-src 0.0.0.0/0
	--tunnel-dst 0.0.0.0/0
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