netdev - Re: [PATCH net-next] hyperv: Add handler for RNDIS_STATUS_NETWORK

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

Date:	Mon, 23 Jun 2014 15:17:23 +0200
From:	Olaf Hering <olaf@...fle.de>
To:	Haiyang Zhang <haiyangz@...rosoft.com>
Cc:	Greg KH <greg@...ah.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	"driverdev-devel@...uxdriverproject.org" 
	<driverdev-devel@...uxdriverproject.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [PATCH net-next] hyperv: Add handler for
 RNDIS_STATUS_NETWORK_CHANGE event

On Mon, Jun 23, Haiyang Zhang wrote:

> > I think its reasonable to expect guest config changes on this new kind
> > of host. Would a link-down/link-up event work? I'm sure it will, there
> > is enough code floating around in the guests which handles cable unplug.
> 
> Do you mean netif_carrier_off() / netif_carrier_on()? They are already 
> called in the code before this patch, but DHCP renew is not triggered by
> them.

I do not know how to simulate a cable unplug. The point is that calling
/etc/init.d/network will fail, at least in SLES12.
Maybe some sort of "DHCP refresh required" event is required?
Maybe the DHCP clients need to renew on cable unplug?
No idea what the solution to the issue really is.

Olaf
--
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