Date: Tue, 15 Dec 1998 22:44:48 +0100 From: Gary Jennejohn <garyj@peedub.muc.de> To: current@FreeBSD.ORG, isdn@FreeBSD.ORG Subject: Re: if_sppp is BROKEN!!! Message-ID: <199812152144.WAA10556@peedub.muc.de> In-Reply-To: Your message of "Tue, 15 Dec 1998 12:56:21 PST." <199812152056.MAA00665@bubba.whistle.com>
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Archie Cobbs writes: >Johan Granlund writes: >> What i was thinking about was something more like lowbandwidth / high >> processing protocols. If the endpoint is a serial port, network interface >> or the network protocol stack (for tunneling) should't be a issue if >> it's used right. > >Here's some examples of what we use the netgraph stuff for on the >InterJet. > [snip] > - ISDN node > > Is a device driver and a netgraph node. Performs the D channel > signalling and has a hook for each B channel. Accepts synchronous > commands for things like dialing, etc. > [snip] does this handle the full I.430, Q.93x stuff too ? In other words, passive ISDN cards ? >Of course the other major benefit is modularity. Instead of having >if_ppp.c, if_sppp.c, if_foo1.c, if_foo2.c, where you are reimplementing >the interface behavior code over and over again, you just keep this >code in a single place: ng_iface.c, the interface node. Then anybody >who needs to export an interface can do so by connecting it to an >interface node (example: cisco hdlc node). > >These little guys make great LKM/KLD modules too.. > >Anyway, one reason I'm hyping this a little bit is because we >(Julian and me) want to clean up, and update, and unencumber the >netgraph code that was released a year or so ago, and check it in >so people can start playing with it more. It will take a little time >though, not to mention approval from the kernel gargoyles... > wow ! This sounds like it would be great for the CAPI stuff I'm trying to implement for isdn4bsd right now. If the card needs CAPI, just hang a CAPI node in the graph. Unfortunately, the effort involved in converting isdn4bsd to use the netgraph mechanism boggles the mind :-( --- Gary Jennejohn Home - garyj@muc.de Work - garyj@fkr.dec.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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