site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com On Mar 15, 2005, at 13:17, Carl Smith wrote: Not sure if I asked the question clearly enough in my last post, but to rephrase the question - Can I manipulate the Ethernet header, and packet data using the data passed into my dlil_if_flt_str function, filter_if_input? I am just anxious because I do not want to spend a lot of development time 'barking up the wrong tree'. Cheers, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | If you're not confused, | You're not paying attention *--------------------------------------*-------------------------------* _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... Do you really want to futz with the frame header on the input path? As implied by Josh's earlier reply, anything above the DLIL layer will not see the frame header (it is provided to the filters at the DLIL layer "for information purposes". The only code that might look at it after your filter would be other filters, and you have no idea what they might be up to. The only information retained as the packet is passed to the network layer is the identity of the interface that received the packet (and that is kept in the mbuf header). We learn by barking at trees and other things that move in the forest :-} This email sent to site_archiver@lists.apple.com