netdev - Re: [PATCH] ipconfig: handle case of delayed DHCP server

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20090517.203953.162821389.davem@davemloft.net>
Date:	Sun, 17 May 2009 20:39:53 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	cfriesen@...tel.com
Cc:	ebiederm@...ssion.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] ipconfig: handle case of delayed DHCP server

From: "Chris Friesen" <cfriesen@...tel.com>
Date: Mon, 11 May 2009 11:44:45 -0600

> If a DHCP server is delayed, it's possible for the client to receive the 
> DHCPOFFER after it has already sent out a new DHCPDISCOVER message from 
> a second interface.  The client then sends out a DHCPREQUEST from the 
> second interface, but the server doesn't recognize the device and 
> rejects the request.
> 
> This patch simply tracks the current device being configured and throws 
> away the OFFER if it is not intended for the current device.  A more 
> sophisticated approach would be to put the OFFER information into the 
> struct ic_device rather than storing it globally.
> 
> Signed-off-by: Chris Friesen <cfriesen@...tel.com>

Applied, thanks Chris.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html