[ovs-dev] [PATCH] match: Add support for matching IGMP fields.

[Jarno Rajahalme]

> On Dec 15, 2015, at 5:47 PM, Ben Pfaff <blp at ovn.org> wrote:
> 
> On Mon, Dec 14, 2015 at 04:36:08PM -0800, Jarno Rajahalme wrote:
>> 
>>> On Dec 14, 2015, at 3:12 AM, Ben Pfaff <blp at ovn.org> wrote:
>>> 
>>> On Thu, Dec 10, 2015 at 01:42:41PM -0800, Jarno Rajahalme wrote:
>>>> Complete the IGMP protocol support by making IGMP fields (type, code,
>>>> and group) matchable via OpenFlow by the way of new Nicira extensions.
>>>> 
>>>> The new fields are: 8-bit NXM_NX_IGMP_TYPE (111), 8-bit
>>>> NXM_NX_IGMP_CODE (112), and 32-bit NXM_NX_IGMP_GROUP (113).
>>>> 
>>>> VMware-BZ: #1558992
>>>> Signed-off-by: Jarno Rajahalme <jarno at ovn.org>
>>> 
>>> Is this something we're targeting to backport to OVS 2.5?  If not, then
>>> the meta-flow.h headers should say "since v2.6" instead of "since
>>> v2.5".
>>> 
>>> This needs to add an item to NEWS and documentation to ovs-ofctl(8).
>>> 
>>> What's here looks good, and I trust you to do a good job on the above,
>>> so:
>>> Acked-by: Ben Pfaff <blp at ovn.org>
>> 
>> While doing this I just realized that this may require further work,
>> as the kernel module does not seem to parse the IGMP fields!
> 
> Userspace should be able to handle that.  It might require a little work
> in odp-util.c to mark the received packet as ODP_FIT_TOO_LITTLE.

Justin suggested the same offline. I’ll have a look at this tomorrow,

  Jarno