linux-kernel - Fwd: include/linux/netfilter.h after make headers

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Message-ID: <a27c0c970805201144j12189201g9567460d4d3d8361@mail.gmail.com>
Date:	Tue, 20 May 2008 11:44:56 -0700
From:	"Greg Steuck" <greg@...t.cx>
To:	linux-kernel@...r.kernel.org
Subject: Fwd: include/linux/netfilter.h after make headers_install is incomplete

Hello,

I asked this on netfilter list, but it doesn't seem to be generating any
interest there. Maybe the question belongs on this list?

I ran make headers_install in 2.6.25 tree and the installed netfilter.h is
not complete. Namely, it declares
union nf_inet_addr {
      __u32           all[4];
      __be32          ip;
      __be32          ip6[4];
...
}

The __u32, __be32 types are declared in <linux/types.h> and the #include
directive is removed by the installation process. This in turn makes some
applications unbuildable against such an exported tree, e.g.

busybox-1.10.1/networking/tcpudp.c:#include <linux/netfilter_ipv4.h>

If I correctly understand the purpose of make headers_install, it is
supposed to generate an API for applications. I could certainly
make tcpudp.c include linux/types.h, but given that the application
does not even use nf_inet_addr, this would be the wrong place for
the fix.

Is kernel the right place then?

Thanks
Greg
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