Subject: Re: [RFC][PATCH 3/3] IPv4:Check IP_MULTICAST_LOOP option value

From: Shan Wei <[email-masked]>
Date: Tue, 10 Jun 2008 17:07:34 +0800

YOSHIFUJI Hideaki / 吉藤英明 写道:
> In article <[email-masked]> (at Tue, 10 Jun 2008 16:32:10 +0800), Shan Wei <[email-masked]> says:
> 
>> YOSHIFUJI Hideaki / 吉藤英明 写道:
>>> In article <[email-masked]> (at Tue, 10 Jun 2008 15:51:47 +0800), Shan Wei <[email-masked]> says:
>>>
>>>> The IP_MULTICAST_LOOP option can only be set with o or 1. When 
>>>> other valuse are set, the kernel should return an error of EINVAL.
>>>>
>>>> In addition, the option should not be uesd by SOCK_STREAM type,
>>>> same as IP_MULTICAST_IF, IP_MULTICAST_TTL.
>>>>   
>>>> But the kernel doesn't check them.
>>> Is there any standard reference about this?
>>>
>> I have not found it.
>> But, the IP_MULTICAST_LOOP option is same as IPV6_MULTICAST_LOOP.
> 
> I disagree.
> We follow what traditional BSDs do, and they do not check if the
> value is 0 or 1 for IP_MULTICAST_LOOP.
> On the other hand, they do for IPV6_MULTICAST_LOOP.
> 
Ok.
no need to check "val".

The option should not be uesd by SOCK_STREAM type.
how do you think of ?
> --yoshfuji

-- 
Regards
単 衛
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Shan Wei
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