Re: Portmap - was Re: Does mountd/statd really need to listen on a privileged port??

["Aurélien Charbon" <aurelien.charbon@ext.bull.net>]

Hi all,

For us Bull, TI-RPC is just a mean to supply IPv6 support for RPC.
We always have considered that it is a raw code with bugs and code =

craps, that has not been tested enough.
We just use and supply it to test IPv6 support for NFSv4. And the code =

is stable enough to do tests with NFSv4 and IPv6.
However, we are developping some tests to improve its reliability, =

stability, performance, to make it acceptable in a more general context.

In the past, we discussed with glibc people to extend SunRPC library =

with IPv6 features. Uli Drepper clearly refused and explained that he =

did not want to see new bugs entering in RPC glibc library. He seems to =

consider that RPCs should not be in the glibc, and introduction of new =

features must be done in an external library.

That's why we decided to port an external tirpc library from FreeBSD =

(which is based on the same Sun code than Wietse's )

Aur=E9lien



Peter Staubach wrote:

>Steve Dickson wrote:
>  =

>
>>Peter =C5strand wrote:
>>  =

>>    =

>>
>>>One thing that bothers me is that the current libtirpc[*] is different =

>>>from other TI-RPC versions. The current version (as far as I understand) =

>>>is based on a snapshot from FreeBSD, which is turn is based on Suns TIRP=
C =

>>>2.3. This code is *not* up to date with TI-RPC 2.9 (aka tirpcsrc_99) and =

>>>certainly not with the latest OpenSolaris version.
>>>    =

>>>      =

>>>
>>hmm... Were does one go to find out how to be come tirpcsrc_99
>>compliant and why is this important? Does the TI-RPC 2.9
>>use a different over-the-wire protocol? I surely hope not... :-\
>>
>>  =

>>    =

>>
>
>The chance that Sun actually changed any of the interfaces from one
>version of TIRPC to the next is virtually nil.  Compatibility is a
>huge thing to them.  Any changes would most likely have been made
>in a backwards compatible fashion.
>
>
>And no, there are no differences in the over the wire protocol.
>
>  =

>
>>>Getting Linux distributions to ship (the same) version of TI-RPC is a =

>>>worthwhile goal, but ideally, we should have an upstream project that =

>>>covers not only Linux, but also, *BSD, OpenSolaris etc. I know it's not =

>>>going to be easy, but I think it's worth a try.
>>>    =

>>>      =

>>>
>>Well if we having support thats needed and/or wanted it should not
>>be too difficult to get people to move over...
>>    =

>>
>
>Having such a project would be a good thing.  We would need developers
>for each release platform targeted though.  Perhaps it might be sufficient
>to start with platforms that we are interested in and as people with other
>platforms become interested, they can port the support and add their own
>patches to the central source base.
>
>I don't think that I understand why being bug for bug compatible with
>the current glibc code is interesting.  This is a new version of the
>RPC support and applications will explicitly need to be ported to it.
>Perhaps we could even pleasantly surprise some folks by addressing
>some particular pet bug that they might have encountered.
>
>    Thanx...
>
>       ps
>
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>


-- =


********************************
       Aurelien Charbon
       Linux NFSv4 team
           Bull SAS
     Echirolles - France
http://nfsv4.bullopensource.org/
********************************


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