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Date: Wed, 02 Dec 2009 18:12:49 +0100 From: Andreas Henriksson <andreas@...al.se> To: Stephen Hemminger <shemminger@...tta.com> Cc: netdev@...r.kernel.org Subject: Re: [PATCH 2/3] Add new (iptables 1.4.5 compatible) tc/ipt/xt module. On ons, 2009-12-02 at 08:58 -0800, Stephen Hemminger wrote: > On Wed, 2 Dec 2009 16:11:50 +0100 > Andreas Henriksson <andreas@...al.se> wrote: > > > Add a new cleaned up m_xt.c based on m_xt_old.c [..] > Will this still build on older versions? The iproute source is supposed > to build even with really old kernels and older iptables. It has > maintained source and binary compatibility. > Which of tc/m_ipt.c, tc/m_xt_old.c and tc/m_xt.c will be built depends on which version of iptables you have installed. The configure script sets matching flags in Config and tc/Makefile picks that up and includes the suitable source file. So tc/m_xt.c will not build with older iptables and it won't be used with older iptables. This is not ideal, since if the xtables headers can't be found (ie. the iptables-dev package isn't installed) the ancient m_ipt.c will be built and the brokenness won't be detected until the user tries to use the module. Distributors will need to watch out for this. It's currently broken in atleast fedora and debian. -- Regards, Andreas Henriksson -- 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
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