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Message-ID: <3BE70C47.5020804@candelatech.com>
Date: Mon, 05 Nov 2001 15:01:43 -0700
From: Ben Greear <greearb@candelatech.com>
Organization: Candela Technologies
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To: Tim Jansen <tim@tjansen.de>
CC: Petr Baudis <pasky@pasky.ji.cz>, linux-kernel@vger.kernel.org
Subject: Re: PROPOSAL: dot-proc interface [was: /proc stuff]
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Tim Jansen wrote:

> On Monday 05 November 2001 14:41, Petr Baudis wrote:
> 
>>So, please, can you enlighten me, what's so wrong on sysctl?
>>
> 
> It doesn't work for complex data, especially lists. How do you want to 
> configure devices, for example? 


How about this:

struct ioctl_payload {
    int how_many;
    int* numbers;
};


User space sets things up normally, with a valid pointer in 'numbers'.
Kernel space copy_from_user the structure, then copy_from_user the number's
memory...

Can that work?  If so, numbers could of course be any data structure we want...


> 
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-- 
Ben Greear <greearb@candelatech.com>       <Ben_Greear AT excite.com>
President of Candela Technologies Inc      http://www.candelatech.com
ScryMUD:  http://scry.wanfear.com     http://scry.wanfear.com/~greear