[dsc] Allow multiple bpf_program and append content

[Jerry Lundström]

Hi Klaus,

On 01/20/17 22:10, Klaus Darilion wrote:
> If the BPF filter becomes too long, it does not fit into the kernel and libpcap filters in userspace. This is much slower and caused lots of dropped packets on our servers. We only detected the reason as we once run dsc in forground/debug mode - then a warning is logged to the console on startup.

Can you send me the warning output and what version are you running?

Cheers,
Jerry