Hi Ivan
you should reserve per-slave buffers (see the 3rd parameter of
dna_cluster_low_level_settings()) for allocation via pfring_alloc_pkt_buff().
Your code should look like this:
tmp_pkt_handle = pfring_alloc_pkt_buff(ring[slave_id])
while (1) {
pfring_recv_pkt_buff(pd, pkt_handle, ...);
/* analyze pkt */
pfring_set_pkt_buff_ifindex(ring[slave_id], pkt_handle, out_index);
pfring_send_pkt_buff(ring[slave_id], pkt_handle,...);
if (condition) {
buffer = pfring_get_pkt_buff_data(ring[slave_id], tmp_pkt_handle);
create_new_pkt(buffer);
pfring_set_pkt_buff_ifindex(ring[slave_id], tmp_pkt_handle, out_index);
pfring_send_pkt_buff(ring[slave_id], tmp_pkt_handle,...);
}
}
Best Regards
Alfredo
On Aug 5, 2013, at 12:56 PM, Ivan Nardi <[email protected]> wrote:
> Hi guys.
>
> We are using libzero with dna-cluster to analyze and forwarding|bouncing
> packets.
> We would like to send through the cluster some packets created by ourselves
> too, other than the captured ones.
> Something like that (in pseudo-code):
>
> while (1) {
> pfring_recv_pkt_buff(pd, pkt_handle, ...);
> /* analyze pkt */
> pfring_set_pkt_buff_ifindex(pd, pkt_handle, out_index);
> pfring_send_pkt_buff(pd, pkt_handle,...);
>
> if (condition) {
> data = create_new_pkt(...);
> send_data_through_cluster(pd, data, out_index2)
> }
> }
>
> Which is the best way to do it?
> Can we use the standard function pfring_send_ifindex() even with cluster? Is
> there a better way?
> Thanks in advance!
>
> Ivan
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