As a simple example to start a larger project, I'm trying to add a new
header ("XIA") to OVS and recognize a single, 8-bit field ("version").Everything seems to be working except reading and matching against the value in the packet. I suspect that I introduced a bug in how to wildcard/mask the field, but I can't figure out what's wrong. For example, I can add a rule and show that it exists: $ sudo ovs-ofctl add-flow s1 xia,xia_version=1,action=drop $ sudo ovs-ofctl dump-flows s1 cookie=0x0, duration=39.477s, table=0, n_packets=0, n_bytes=0, idle_age=39, xia,xia_version=1 actions=drop I then send packets through the switch, but OVS is reading the packets' version number as 0 instead of 1: $ sudo ovs-ofctl dump-flows s1 cookie=0x0, duration=2.785s, table=0, n_packets=0, n_bytes=0, idle_timeout=60, idle_age=2, priority=65535,xia,xia_version=0,in_port=1,vlan_tci=0x0000,dl_src=4a:89:41:15:23:cc,dl_dst=86:95:6d:92:55:55 actions=output:2 cookie=0x0, duration=2.775s, table=0, n_packets=0, n_bytes=0, idle_timeout=60, idle_age=2, priority=65535,xia,xia_version=0,in_port=2,vlan_tci=0x0000,dl_src=86:95:6d:92:55:55,dl_dst=4a:89:41:15:23:cc actions=output:1 cookie=0x0, duration=39.477s, table=0, n_packets=0, n_bytes=0, idle_age=39, xia,xia_version=1 actions=drop I verified that the packet has a version number of 1 by using Wireshark and by printing out the packet's value when it is received in miniflow_extract(). Sometime after that, the 1 is lost. I'd appreciate any tips on where to look for this bug, or quick peek at what I've added so far: https://github.com/cjdoucette/ovs/commit/4a5d81c31a903e892940cb5fd79467d7dc81fb92 Thanks for any help, Cody
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