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Date: Thu, 3 Jul 2008 21:07:13 +0200 (CEST) From: Jan Engelhardt <jengelh@...ozas.de> To: "H. Peter Anvin" <hpa@...or.com> cc: Jens-Michael Hoffmann <J.Hoffmann@...ion.com>, linux-kernel@...r.kernel.org Subject: Re: tcp/ip connect on demand On Thursday 2008-07-03 20:28, H. Peter Anvin wrote: > Jens-Michael Hoffmann wrote: >> hi, >> >> what is the right way to implement a "connect on demand" feature? >> Example: user types url in firefox and presses return. Then >> the system should set up network devices and proceed as usual. >> >> Is there a hook in the kernel we can use? > > In the kernel, no. Nor do you need one; the best place to hook into this is > probably the name service system (so you catch it on trying to look up > hostnames.) > > Alternatively, you can set up a bridge device which you can listen to via a tap > device; when you see traffic, you bring up the real network and attach it to > the bridge. There is on-demand for PPP devices; though that is probably specific to PPP. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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