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Message-ID: <alpine.LRH.1.10.0810020810570.12028@tundra.namei.org> Date: Thu, 2 Oct 2008 08:12:16 +1000 (EST) From: James Morris <jmorris@...ei.org> To: Paul Moore <paul.moore@...com> cc: selinux@...ho.nsa.gov, linux-security-module@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [RFC PATCH v6 15/16] cipso: Add support for native local labeling and fixup mapping names On Wed, 1 Oct 2008, Paul Moore wrote: > > Macros would be nice for these ... > > I assume you mean the "0x80" and "0x08" constants and not the function > itself? Yes. > I ask because I remember reading that (macros == evil) because > of the lack of parameter type checking. > > > ... and why specify zero filling? (Setting and testing that would be > > wasted cycles, if you enforced it). > > Better alignment within the IP option field, the goal being to try and > get the secid aligned on a 32bit boundary. However, it just occurred > to me that by adding the two octets of padding I've actually pushed it > out of alignment (I forgot about the obligatory IP option type and > length octets). I mean, why specify zero-filled rather than simply "unused" ? > Man I hate IPv4 options, what a parsing nightmare ... It was all fixed with IPv6, right? :-) - James -- James Morris <jmorris@...ei.org> -- 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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