On Nov 12, 2003, at 4:28 PM, Guy Harris wrote:
On Nov 12, 2003, at 4:14 PM, Anand V. Narwani wrote:
I noticed in 0.9.16 the capture dialog allows you to select the
link-layer header type. Is it possible that we can use this to set
the link layer type when capturing DOCSIS packets?
It would be *IF*
1) we add a DLT_DOCSIS link-layer header to libpcap;
Done a while ago, as per previous mail.
2) we modified libpcap so that, for Ethernet devices, it adds
DLT_DOCSIS to the list of supported link-layer types and allows that
type to be selected even though it's not in the list you get from the
kernel;
I recently checked that into the main branch of libpcap. (It's not in
the 0.8 branch, so it won't be in 0.8; it's sufficiently late in the
0.8 release cycle that I'm loath to add it at this point.)
A side-effect of that is that we could add support for DLT_DOCSIS in
the BPF compiler, so you could do capture filtering.
Not done yet.
I've also added support in Ethereal for mapping DLT_DOCSIS to
WTAP_ENCAP_DOCSIS.
