From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Alexander E. Patrakov" <patrakov@ums.usu.ru>
Date: Sat, 25 Aug 2007 04:36:19 +0000
Subject: Re: Call for Assistance - udev
Message-Id: <46CFB1C3.8020300@ums.usu.ru>
List-Id: <linux-hotplug.vger.kernel.org>
References: <46CF2009.6030709@ums.usu.ru>
In-Reply-To: <46CF2009.6030709@ums.usu.ru>
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To: linux-hotplug@vger.kernel.org

Kay Sievers wrote:
> On 8/24/07, Alexander E. Patrakov <patrakov@ums.usu.ru> wrote:
>   
>> 2) Mismatch between /dev/random and /dev/urandom permissions:
>> KERNEL="...|random", MODE="0666"
>> KERNEL="urandom", MODE="0644"
>>     
>
> You can write to random to add entropy to the pool. I guess, you can't
> write to urandom.
>   

The drivers/char/random.c file says:

const struct file_operations random_fops = {
        .read  = random_read,
        .write = random_write,
        .poll  = random_poll,
        .ioctl = random_ioctl,
};

const struct file_operations urandom_fops = {
        .read  = urandom_read,
        .write = random_write,
        .ioctl = random_ioctl,
};

So there is no valid reason for this mismatch.

-- 
Alexander E. Patrakov

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