Messages in this thread | | | Date | Thu, 14 Dec 2006 10:45:18 -0800 | From | Stephen Hemminger <> | Subject | Re: get device from file struct |
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On Thu, 14 Dec 2006 14:03:28 +0100 Silviu Craciunas <silviu.craciunas@sbg.ac.at> wrote:
> On Wed, 2006-12-13 at 15:53 -0800, Stephen Hemminger wrote: > > The connection between file and network device is through many > > layers and there is no direct binding. It could be 0 to N interfaces > > and even be data dependent. > > you mean protocol dependent? yes,it goes trough the layer of the vfs but > I thought there may be a way to get to the struct net_device from the > struct file. You have the dev_base which contains all devices and in the > net_device there is the ifindex which is the unique identifier. I guess > there is no way to know the ifindex directly from a socket struct. > > thanks > silviu >
You can have things like netfilter and traffic classifiers that look at packet.
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