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Re: protocol plumbing
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Re: protocol plumbing

  • Subject: Re: protocol plumbing
  • From: Josh Graessley <email@hidden>
  • Date: Mon, 14 Jul 2008 15:08:52 -0700

That call is attempting to register a plumber for IP over Ethernet. The system already ships with support for ip over Ethernet. The plumber kpi is provided so third parties can support system supplied protocols such as IP over interfaces other than Ethernet such as ATM or Tokenring.

Sent from my iPhone

On Jul 14, 2008, at 14:33, Doug John <email@hidden> wrote:

I need to perform some filtering for an ethernet layer protocol. Similar to the ether_attach_inet in ether_inet_pr_module.c, I've setup my code for attaching my protocol to the interface in the proto_plumb_handler.

However, when I call my plumber registration with:

proto_register_plumber(PF_INET, APPLE_IF_FAM_ETHERNET, proto_attach, proto_detach), it's responding with an EEXISTS error.

Am I doing something wrong here? How can I attach my protocol to a specific interface, ie. en0 or en1?
Should I actually be using an "interface filter" instead of the "protocol plumber"?

Thanks in advance,
Doug
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