Date: Wed, 22 Mar 2000 14:14:24 -0500 (EST) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: "Sam Leffler" <sam@errno.com> Cc: "C. Stephen Gunn" <csg@waterspout.com>, <freebsd-net@FreeBSD.ORG> Subject: Re: Trimming ether_header before ether_input() Message-ID: <200003221914.OAA27909@khavrinen.lcs.mit.edu> In-Reply-To: <010101bf9430$c8e364f0$0132a8c0@MELANGE> References: <200003220239.VAA01543@dustdevil.waterspout.com> <005301bf9420$a53ebdc0$0132a8c0@MELANGE> <20000322135759.A5013@waterspout.com> <010101bf9430$c8e364f0$0132a8c0@MELANGE>
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<<On Wed, 22 Mar 2000 10:59:43 -0800, "Sam Leffler" <sam@errno.com> said: > If you're asking, can this still happen; then the answer is it's very > unlikely and it's probably safe to assume the link layer header is > contiguous with the payload. But I haven't touched a BSD network driver in > years so I defer to others. The support for the trailer encapsulation was ripped out, IIRC, between Net-2 and 4.4-Lite. We don't even have an IFF_TRAILERS flag any more. There are some network interfaces which can return the header separately, but I don't see any particularly good reason to cater to them. -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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