Re: [PATCH] selinux: Support SCTP protocol

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On Friday, November 07, 2014 05:02:11 PM Richard Haines wrote:
> Yes I thought there might be more to this as the orginal to-do list referred
> to a bug report that pointed to the possible updates required. I then saw
> the new list that said "Proper support for SCTP". I was not sure what it
> meant until now.

I wish I could provide you a full list of what would need to be done, but 
unfortunately I don't have enough knowledge of SCTP to be able to tell you 
more than I already have.  I expect that in the end you'll be able to educate 
us all (at least the SELinux folks) a little on SCTP.

> Anyway I may carry on and see how far I get.

Please do, your help would be greatly appreciated.  I'm more than happy to 
provide whatever help I can and I suspect dborkman would say the same.

> However what about the "Improve support for the different network address
> families with more socket classes" that is on the list. Would the type of
> patch I submitted be suitable for that type of basic support for say
> Bluetooth or are you really looking for the detailed support as in SCTP.

Like most things, the answer is: "it depends".

If the protocol is fairly simplistic, e.g. UDP, then a patch like what you 
provided is likely sufficient.  However, if it is more complicated, e.g. TCP, 
then we need to be a bit more careful to make sure we are handling things 
correctly.  While I only know enough about SCTP to be dangerous, SCTP does 
appear to fall under the complex/TCP category.

I don't know enough about Bluetooth to make a judgment either way, but I'm 
always willing to accept patches if you provide a good explanation.

-- 
paul moore
www.paul-moore.com

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