Date: Wed, 12 Dec 2001 16:05:43 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Aleksander Rozman - Andy <andy@kksonline.com> Cc: freebsd-net@freebsd.org Subject: Re: Adding new networking protocol (ax.25) Message-ID: <Pine.BSF.4.21.0112121600330.5654-100000@InterJet.elischer.org> In-Reply-To: <5.0.2.1.0.20011211172115.02d0edb8@sundance.kks.net>
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a couple of comments.. understand mbufs vs Linux pkbufs. there are several "added" protocols. see what netgraph does to add itself as a protocol the socket part of doing so is in ng_socket.c and the bottom end is in ng_base.c where it adds a handler to the netisr structures. look however at how ip or appletalk actually get teh packets from there, rather than how netgraph does, which is non standard. ( you have to add yourself to structures at both the top and bottom of the kernel.) divert sockets also add themself as a IP subprotocol. (the top part) On Tue, 11 Dec 2001, Aleksander Rozman - Andy wrote: > > Hi People ! > > I was planing some time now, to try to add ax25 (packet radio) protocols, > so we could use packet radio with FreeBSD. Now I was wondering if any of > you has seen any special documentation that could help me with that. I was > told that TCP/IP Illustrated Volume 2, was great book for this purpose (I > still haven't got my hands on it, but I am trying to get it), so I was > wondering if anybody else has some info that could help me do that > (tutorials, docs, books, links, anything...). I will be porting this from > Linux, so any documentation for doing this will also be appreciated. I was > searching net for this, but I haven't found much so far, everything I did > get, I got by "accident"...so if any of you had some of such "accident" I > would be grateful for any hints... > > Take care. > Andy > > > > > ************************************************************************** > * Aleksander Rozman - Andy * Fandoms: E2:EA, SAABer, Trekkie, Earthie * > * andy@kksonline.com * Sentinel, BH 90210, True's Trooper, * > * andy@atechnet.dhs.org * Heller's Angel, Questie, Legacy, PO5, * > * Maribor, Slovenia (Europe) * Profiler, Buffy (Slayerete), Pretender * > * ICQ-UIC: 4911125 ********************************************* > * PGP key available * http://www.atechnet.dhs.org/~andy/ * > ************************************************************************** > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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