unable to use BPF Just-In-Time compiler

[Bjoern A. Zeeb]

On 19 Sep 2016, at 16:04, Jung-uk Kim wrote:

> On 09/17/2016 17:11, Bjoern A. Zeeb wrote:
>> On 15 Sep 2016, at 5:32, KrishnamRaju ErapaRaju wrote:
>>
>>> Hi,
>>>
>>> I want to use BPF JIT Kernel APIs in FreeBSD(like: bpf_jitter(),
>>> etc..), for implementing TCP connection packet filtering.
>>>
>>> I have followed below instructions as specified in:
>>> https://lists.freebsd.org/pipermail/freebsd-current/2005-December/058603.html
>>>
>>>
>>> STEPS followed:
>>> ---------------------
>>> cp /usr/src/sys/amd64/conf/GENERIC /usr/src/sys/amd64/conf/MYKERNEL
>>>
>>> And added below line in MYKERNEL config file.
>>>         options BPF_JITTER
>>
>> I think you want
>>
>> device         bpf_jitter
>>
>> The options line to my understanding only turns it on by default.
>
> "options BPF_JITTER" works.  I don't know why the OP thinks that it
> doesn't work, though.

Ok, let’s see;  if you boot your own kernel, what does

sysctl net.bpf_jitter.enable

say?

/bz