Re: bps helper functions

Yonghong Song


Some comments below.

On Sat, Apr 7, 2018 at 1:44 PM, riya khanna <riyakhanna1983@...> wrote:

On Mon, Apr 2, 2018 at 1:30 PM, riya khanna <riyakhanna1983@...>

Oh its simply to inspect/filter/drop a compressed application packet in
the kernel without incurring network stack processing.
Could you have more details here? Maybe have a skeleton of bpf program
to at least see how this helper will be used? A lot of compression
happens in the application
and kernel chops them into TCP stream. Or you are talking IPcomp protocol?
I am not sure how bpf program could do decompression based on a single packet.
Further, do we need todecompress the whole packet or on ly part of the packet?


On Mon, Apr 2, 2018 at 11:36 AM, Y Song <ys114321@...> wrote:

Hi, Ashish,

It seems that this has not been actively discussed before. Could you
describe your use case?



On Mon, Apr 2, 2018 at 8:11 AM, riya khanna via iovisor-dev
<iovisor-dev@...> wrote:
Dear developers,

Is it a good idea to export kernel compression/decompression
lib/lz*) as helper functions to enable corresponding use cases? Has
been tried before?


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