On Sat, Sep 6, 2014 at 7:10 AM, Pablo Neira Ayuso [off-list ref] wrote:
On Thu, Sep 04, 2014 at 10:17:18PM -0700, Alexei Starovoitov wrote:
quoted
allow user space to generate eBPF programs
uapi/linux/bpf.h: eBPF instruction set definition
linux/filter.h: the rest
This patch only moves macro definitions, but practically it freezes existing
eBPF instruction set, though new instructions can still be added in the future.
These eBPF definitions cannot go into uapi/linux/filter.h, since the names
may conflict with existing applications.
Full eBPF ISA description is in Documentation/networking/filter.txt
I think you need to have at least one single interface using this
before you can expose it to userspace. So this should come in the
small batch that introduces the first interface of your ebpf code in
userspace. AFAIK, this has been the policy so far.
That's what I've been doing over the last year.
My first eBPF patch was in Sep of 2013!
since then I've been only tweaking and massaging it.
Nothing fundamentally changed.
Last few month I've been posting these series with not only
first user, but with multiple. Many examples, test cases and so on.
The series became big and Dave asked to split them.
Please see the cover letter. These two patches is stage I.
More examples and use cases in stage II, stage III, stage IV, etc
All these patches are ready. I'm only submitting them one at
a time to make review easier.
Please see them in my tree if you interested.
Thanks