linux-kernel - Re: [PATCH] IPv6: ipv6_addr_type() doesn't know about RFC4193 addresses

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Date:	Wed, 25 Jul 2007 17:12:03 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	djohnson+linux-kernel@...starentnetworks.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	lksctp-developers@...ts.sourceforge.net,
	sakkiped@...rentnetworks.com
Subject: Re: [PATCH] IPv6: ipv6_addr_type() doesn't know about RFC4193
 addresses

From: Dave Johnson <djohnson+linux-kernel@...starentnetworks.com>
Date: Wed, 25 Jul 2007 19:49:09 -0400

> 
> ipv6_addr_type() doesn't check for 'Unique Local IPv6 Unicast
> Addresses' (RFC4193) and returns IPV6_ADDR_RESERVED for that range.
> 
> SCTP uses this function and will fail bind() and connect() calls that
> use RFC4193 addresses, SCTP will also ignore inbound connections from
> RFC4193 addresses if listening on IPV6_ADDR_ANY.
> 
> There may be other users of ipv6_addr_type() that could also have
> problems.

Contrarily, there may be ipv6_addr_type() call sites that really
do want to reject rfc4193 addresses.
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