Date: Tue, 19 May 1998 13:49:16 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: kjc@csl.sony.co.jp (Kenjiro Cho) Cc: current@FreeBSD.ORG Subject: Re: struct ifnet handling... Message-ID: <199805191149.NAA09232@labinfo.iet.unipi.it> In-Reply-To: <199805191038.TAA25933@hotaka.csl.sony.co.jp> from "Kenjiro Cho" at May 19, 98 07:38:06 pm
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> >> When this is done, matching interface names requires only a pointer > >> comparison (and furthermore, a NULL pointer can be used as an > >> indication that no interface match is required). > > Use if_index instead of a pointer to the interface name. if_index is > a unique interface number start from 1. Many routing related programs I also thought of the pointer to struct ifnet as a unique identifier, except that the current ipfw syntax allows wildcards to selects all interfaces of the same kind (e.g. all "tun", all "ed", etc.) I don't think this makes much sense, but maybe someone depends on it. In any case it is clear that if we want a fast firewall code, rules must be simplified. We now have CISC rules, should go for RISC ones :) cheers luigi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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