On Fri, Mar 18, 2016 at 05:02:41PM +0800, Peng He wrote:
> Hi, I send this email once, no people replied. I am trying to refresh this
> email for a reply.
> This discontiguous bit mask issue arises in the following case:
>
>
> I installed two rules,
>
>
> ovs-ofctl add-flow br0
> in_port=1,dl_type=0x0800,nw_src=10.2.10.0/24,nw_proto=6,tcp_dst=0x0050,priority=1,actions=drop
> ovs-ofctl add-flow br0
> in_port=1,dl_type=0x0800,nw_src=10.2.0.0/16,nw_proto=6,tcp_dst=0x1f90,priority=1,actions=drop
>
>
> and test the rules with packet (nw_src = 10.2.2.1 and tcp_dst = 8080). I got
> the nw_src mask (in network byte order) 0x8ffff.
> Even you change it to host byte order the bit mask still has discontiguous
> 1-bits 0xFFFF08 = 1111 1111 1111 1111 0000 1000.
This looks correct to me. Are you reporting a bug? If so, what is it?
Here's how to reproduce this setup, under "make sandbox":
ovs-vsctl add-br br0
ovs-ofctl del-flows br0
ovs-ofctl add-flow br0
in_port=1,dl_type=0x0800,nw_src=10.2.10.0/24,nw_proto=6,tcp_dst=0x0050,priority=1,actions=drop
ovs-ofctl add-flow br0
in_port=1,dl_type=0x0800,nw_src=10.2.0.0/16,nw_proto=6,tcp_dst=0x1f90,priority=1,actions=drop
ovs-appctl ofproto/trace br0 tcp,in_port=1,nw_src=10.2.2.1,tcp_dst=8080
The output is:
Bridge: br0
Flow:
tcp,in_port=1,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,nw_src=10.2.2.1,nw_dst=0.0.0.0,nw_tos=0,nw_ecn=0,nw_ttl=0,tp_src=0,tp_dst=8080,tcp_flags=0
Rule: table=0 cookie=0
priority=1,tcp,in_port=1,nw_src=10.2.0.0/16,tp_dst=8080
OpenFlow actions=drop
Final flow:
tcp,in_port=1,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,nw_src=10.2.2.1,nw_dst=0.0.0.0,nw_tos=0,nw_ecn=0,nw_ttl=0,tp_src=0,tp_dst=8080,tcp_flags=0
Megaflow:
recirc_id=0,tcp,in_port=1,nw_src=10.2.0.0/255.255.8.0,nw_frag=no,tp_dst=8080
Datapath actions: drop
_______________________________________________
dev mailing list
dev@openvswitch.org
http://openvswitch.org/mailman/listinfo/dev
