Re: libpcap: patches required for OpenSolaris/SXCE build >= 125

[Guy Harris <guy () alum mit edu>]

On Nov 24, 2009, at 3:55 PM, Darren Reed wrote:

> #ifdef HAVE_ZEROCOPY_BPF
> #include <machine/atomic.h>
> @@ -510,7 +511,8 @@
>                 if (v == DLT_EN10MB) {
>                         is_ethernet = 1;
>                         for (i = 0; i < bdlp->bfl_len; i++) {
> -                               if (bdlp->bfl_list[i] != DLT_EN10MB) {
> +                               if (bdlp->bfl_list[i] != DLT_EN10MB  &&
> +                                   bdlp->bfl_list[i] != DLT_IPNET) {
>                                         is_ethernet = 0;
>                                         break;
>                                 }

The only thing is_ethernet is used for is to add DLT_DOCSIS to the DLT  
list.

Can I plug a Cisco cable modem head-end device into an IPNET device  
and have it put DOCSIS frames inside IPNET layer-1 framing, so that  
you get packets with *no* IPNET header?  I suspect the answer is "no",  
in which case you should not set is_ethernet for DLT_IPNET.
-
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