netdev - Re: [v9 PATCH 2/3] NETFILTER module xt_hmark, new target for HASH based fwmark

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.LNX.2.01.1203051140470.19304@frira.zrqbmnf.qr>
Date:	Mon, 5 Mar 2012 11:48:16 +0100 (CET)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	Hans Schillstrom <hans.schillstrom@...csson.com>
cc:	Pablo Neira Ayuso <pablo@...filter.org>,
	"kaber@...sh.net" <kaber@...sh.net>,
	"netfilter-devel@...r.kernel.org" <netfilter-devel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"hans@...illstrom.com" <hans@...illstrom.com>
Subject: Re: [v9 PATCH 2/3] NETFILTER module xt_hmark, new target for HASH
 based fwmark


On Monday 2012-03-05 11:09, Hans Schillstrom wrote:
>> > diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
>> > index 40f4c3d..21bc5e8 100644
>> > --- a/net/netfilter/Makefile
>> > +++ b/net/netfilter/Makefile
>> > @@ -57,6 +57,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
>> >  obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o
>> >  obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
>> >  obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
>> > +obj-$(CONFIG_NETFILTER_XT_TARGET_HMARK) += xt_hmark.o
>> 
>> Netfilter's naming policy requires that targets are in upper case.
>
>I asked netfilter team about that, and got the answer
>that it should be lower case for new modules.
>Have that been changed ?

The name of the file is pretty much irrelevant (because loading
solely depends on MODULE_ALIAS), so I share that only lowercase
should be used for new things. It's not that the linux kernel would
currently be storable on a case-insensitive filesystem, but that does
not mean we can't latently work towards it.

>static int get_inner_hdr(struct sk_buff *skb, int *nhoff)
>{
>	const struct icmphdr *icmph;
>	struct icmphdr _ih;
>	int iphz = ((struct iphdr *)skb_network_header(skb))->ihl * 4;

unsigned int iphz = skb_hdrlen(skb);

>> > +static unsigned int
>> > +hmark_v6(struct sk_buff *skb, const struct xt_action_param *par)
>> > +{
>> > +     struct xt_hmark_info *info = (struct xt_hmark_info *)par->targinfo;

Pointless cast.

>> > +     union hmark_ports uports = { .v32 = 0 };
>> 
>> I think that this can be: union hmark_ports uports = {};

NB: Strictly speaking, {} is a GNU extension to saying {0} (or {{0}} or
{{{{{0}}}}} etc, which ever applies).

>> > +static unsigned int
>> > +hmark_v4(struct sk_buff *skb, const struct xt_action_param *par)
>> > +{
>> > +     struct xt_hmark_info *info = (struct xt_hmark_info *)par->targinfo;

Same pointless cast.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html