Messages in this thread | | | Date | Sun, 12 Jan 2003 22:11:51 -0500 | From | Joshua Stewart <> | Subject | Re: Sending sk_buffs without being tied to a struct sock |
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At this point, if I call skb->dst->output() what should skb->data point to? A properly crafted IP packet? Checksummed and all? I shouldn't need any layer 2 info in my skb at all to use this solution, should I?
Thanks for the help. I think this will do the trick.
J
On Sun, 2003-01-12 at 12:28, Patrick McHardy wrote: > Joshua Stewart wrote: > > > > >I'm trying to take "hand-built" sk_buffs with little more than some data > >and a dev member and push them to the NIC for transmission. I would > >like to simply give them to dev_queue_xmit. Does anybody know what > >state I should have them in before handing them to dev_queue_xmit? > >Should skb->data point to the start of a MAC header or an IP header? > > > >Also, given an IP address in skb->nh.iph->daddr, what's the easiest way > >to get the appropriate MAC address? > > > use ip_route_output_key() and then skb->dst->output(), that way it will work on all media > and you don't have to care about l2 resolving at all. > > > Patrick > > - > To unsubscribe from this list: send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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