Re: [INET] Add flags field to ip_tunnel_parm

[YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@xxxxxxxxxxxxxx>]

In article <20040914121617.GA5652@xxxxxxxxxxxxxxxxxxx> (at Tue, 14 Sep 2004 
22:16:17 +1000), Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> says:

> BTW if anyone else wants to add more fields to the structure, now is
> the time.

Well, you simply cannot do this.

Kernel will get garbage from old binaries,
and kernel will break user space if it tries 
to get params into old structure.

So, please change SIOxxxTUNNEL values to support both interfaces
(or give up ioctl and use rtnetlink instead!)

Thanks.

-- 
Hideaki YOSHIFUJI @ USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
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