Re: [PATCH 6/6] nfs: Fix misparsing of nfsv4 fs_locations attribute

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On Tue, Jun 10, 2008 at 04:51:53PM -0400, Chuck Lever wrote:
> On Jun 10, 2008, at 3:17 PM, J. Bruce Fields wrote:
>> On Tue, Jun 10, 2008 at 11:34:14AM -0400, Chuck Lever wrote:
>>> On Jun 9, 2008, at 5:22 PM, J. Bruce Fields wrote:
>>>> On Mon, Jun 09, 2008 at 05:08:16PM -0400, Trond Myklebust wrote:
>>>>>
>>>>> What if it is an IPv6 address? As I've said before, could we please
>>>>> just
>>>>> adapt nfs_parse_server_address to deal with all these cases?
>>>>
>>>> I haven't had the time to do that, so I thought we'd rather have a  
>>>> fix
>>>> for the immediate bug now, then add ipv6 support later.  For all I
>>>> know
>>>> the final patches might end up factoring reasonable cleanly that way
>>>> anyway.
>>>
>>> I have a patch (upcoming for 2.6.27) that fixes  
>>> nfs_parse_server_address
>>> to be careful about '\0'-termination.  It changes the function to  
>>> take a
>>> char * and a length.  All you will need to do is make it non-static.
>>
>> OK, good.  That patch and my patch will apply together in either  
>> order;
>> mine ditches the unnecessary valid_ipadd4() and relies on in4_pton()
>> instead.  Yours makes nfs_parse_server_address more-or-less a drop-in
>> replacement for in4_pton there.  And it should be easy to switch it  
>> over
>> either in whichever patch comes second or in a small third patch.
>>
>> So, I was right, this is the natural way to factor out the change
>> anyway.
>>
>> The one remaining thing missing for that to work, I think, is to fix  
>> the
>>
>> 	struct sockaddr *addr;
>>
>> field in nfs_clone_mount?
>
> "struct sockaddr *" is what we want.

I'm afraid the various sockaddr types confuse me.  Oh, I see, so it's
just a pointer, so we can store a pointer to a struct sockaddr_storage
there or whatever.

> Only the current logic in  
> nfs_follow_referral() is AF_INET-specific.

OK.

--b.
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