> On Tue, 18 Feb 2014 22:52:38 +0900 (JST)
> [email protected] (YAMAMOTO Takashi) wrote:
> 
>>> On Mon, 17 Feb 2014 02:25:55 -0500
>>> Rob Udechukwu <[email protected]> wrote:
>>> 
>>>> Sorry for the delay. Thanks for the help, the only modifications I had to 
>>>> make to the code was within the init() and the serialize() function. 
>>>> - init() - I am ensuring data"s length is a multiple of 8 as specified in 
>>>> 1.3
>>>> - serialize() - Removed the self.buf for just but
>>>> 
>>>> Code listed below.
>>> 
>>> Thanks! I converted this to a patch. I'll apply this if it works for
>>> you.
>>> 
>>> =
>>> From b7b9ed72b9c51e7495f7a36032dcc1fa89a65110 Mon Sep 17 00:00:00 2001
>>> From: Rob Udechukwu <[email protected]>
>>> Date: Tue, 18 Feb 2014 22:35:31 +0900
>>> Subject: [PATCH] of13: support OFPAactionExperimenter with data
>>> 
>>> Signed-off-by: Rob Udechukwu <[email protected]>
>>> Signed-off-by: FUJITA Tomonori <[email protected]>
>>> ---
>>>  ryu/ofproto/ofproto_v1_3_parser.py | 11 +++++++++--
>>>  1 file changed, 9 insertions(+), 2 deletions(-)
>>> 
>>> diff --git a/ryu/ofproto/ofproto_v1_3_parser.py 
>>> b/ryu/ofproto/ofproto_v1_3_parser.py
>>> index 39864d2..06addda 100644
>>> --- a/ryu/ofproto/ofproto_v1_3_parser.py
>>> +++ b/ryu/ofproto/ofproto_v1_3_parser.py
>>> @@ -3159,19 +3159,26 @@ class OFPActionExperimenter(OFPAction):
>>>      experimenter     Experimenter ID
>>>      ================ ======================================================
>>>      """
>>> -    def __init__(self, experimenter, type_=None, len_=None):
>>> +    def __init__(self, experimenter, data=None, type_=None, len_=None):
>>>          super(OFPActionExperimenter, self).__init__()
>>>          self.experimenter = experimenter
>>> +        self.data = data
>>> +        self.len = (utils.round_up(len(data), 8) +
>>> +                    ofproto.OFP_ACTION_EXPERIMENTER_HEADER_SIZE)
>> 
>> how about assert (len(data) % 8) == 0 ?
>> i think it's what the spec says.
> 
> Ah, we had better to add a padding to the data if the length is not
> multiples of 8?

yes, my understanding of the spec is that the actual length of
data should be a multiple of 8.

automatic padding might confuse users as it breaks serialize/parse
round-trip.  i have no strong opinion about this, though.

YAMAMOTO Takashi

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