On Wed, Feb 08, 2017 at 10:29:29PM +0100, Eryk Schiller wrote: > Dear all, > > I am writing this post, because I saw a discussion from the beginning of > 2016 about the implementation of an additional matching field of UDP in OVS. > Maybe you can help with a similar implementation. > > The discussion is here, > > https://mail.openvswitch.org/pipermail/ovs-discuss/2016-April/040894.html > > and I found another similar patch implementing some IGMP functionality here. > > https://patchwork.ozlabs.org/patch/555337/ > > I went through the FAQ, discussion, and the aforementioned patch, and > implemented a new custom user-space matching rule. > > However, when I add my field to flow rules, i.e., > > ovs-ofctl --verbose -O OpenFlow15 add-flow ovs-br > in_port=4,ip,udp,my_field=0x6,action=normal > 2017-02-08T20:42:13Z|00001|hmap|DBG|lib/shash.c:112: 7 nodes in bucket (64 > nodes, 32 buckets) > 2017-02-08T20:42:13Z|00002|hmap|DBG|lib/shash.c:112: 6 nodes in bucket (128 > nodes, 64 buckets) > 2017-02-08T20:42:13Z|00003|hmap|DBG|lib/shash.c:112: 7 nodes in bucket (128 > nodes, 64 buckets) > 2017-02-08T20:42:13Z|00004|hmap|DBG|lib/shash.c:112: 7 nodes in bucket (128 > nodes, 64 buckets) > 2017-02-08T20:42:13Z|00005|stream_unix|DBG|/var/run/openvswitch/ovs-br: > connection failed (No such file or directory) > 2017-02-08T20:42:13Z|00006|ofctl|DBG|connecting to > unix:/var/run/openvswitch/ovs-br.mgmt > 2017-02-08T20:42:13Z|00007|hmap|DBG|lib/ofp-msgs.c:1143: 6 nodes in bucket > (128 nodes, 64 buckets) > 2017-02-08T20:42:13Z|00008|hmap|DBG|lib/ofp-msgs.c:1143: 6 nodes in bucket > (256 nodes, 128 buckets) > 2017-02-08T20:42:13Z|00009|hmap|DBG|lib/ofp-msgs.c:1143: 7 nodes in bucket > (512 nodes, 256 buckets) > 2017-02-08T20:42:13Z|00010|hmap|DBG|lib/ofp-msgs.c:1143: 8 nodes in bucket > (512 nodes, 256 buckets) > 2017-02-08T20:42:13Z|00011|hmap|DBG|lib/ofp-msgs.c:1143: 6 nodes in bucket > (512 nodes, 256 buckets) > 2017-02-08T20:42:13Z|00012|hmap|DBG|lib/ofp-msgs.c:1143: 7 nodes in bucket > (512 nodes, 256 buckets) > 2017-02-08T20:42:13Z|00013|vconn|DBG|unix:/var/run/openvswitch/ovs-br.mgmt: > sent (Success): OFPT_HELLO (OF1.5) (xid=0x1): > version bitmap: 0x06 > 2017-02-08T20:42:13Z|00014|vconn|DBG|unix:/var/run/openvswitch/ovs-br.mgmt: > received: OFPT_HELLO (OF1.5) (xid=0x39): > version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 > 2017-02-08T20:42:13Z|00015|vconn|DBG|unix:/var/run/openvswitch/ovs-br.mgmt: > negotiated OpenFlow version 0x06 (we support version 0x06, peer supports > version 0x06 and earlier) > 2017-02-08T20:42:13Z|00016|vconn|DBG|unix:/var/run/openvswitch/ovs-br.mgmt: > sent (Success): OFPT_FLOW_MOD (OF1.5) (xid=0x2): ADD *udp,in_port=4* > actions=NORMAL > 2017-02-08T20:42:13Z|00017|vconn|DBG|unix:/var/run/openvswitch/ovs-br.mgmt: > sent (Success): OFPT_BARRIER_REQUEST (OF1.5) (xid=0x3): > 2017-02-08T20:42:13Z|00018|poll_loop|DBG|wakeup due to 0-ms timeout > 2017-02-08T20:42:13Z|00019|poll_loop|DBG|wakeup due to [POLLIN] on fd 4 > (<->/var/run/openvswitch/ovs-br.mgmt) at lib/stream-fd.c:155 > 2017-02-08T20:42:13Z|00020|vconn|DBG|unix:/var/run/openvswitch/ovs-br.mgmt: > received: OFPT_BARRIER_REPLY (OF1.5) (xid=0x3): > > There is only an ADD for udp,in_port=4; so my_field seems to be ignored, but > surprisingly overall the switch does what I want. Moreover, dump-flows does > not recognize this my_field properly either. > > The question is what is the proper way to include custom my_field in OF > messages so that I can use it with ovs-ofctl add-flow and ovs-ofctl > dump-flows? Is there any additional answer to that in FAQ?
It sounds like your new field just isn't being printed as part of formatting a match. Make sure that you added it to match_format() in lib/match.c. _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
