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Date: Sun, 18 Dec 2011 14:48:01 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] iSCSI: add configuration variables for
	iSCSI
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To: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: kwolf@redhat.com, qemu-devel@nongnu.org

On 12/18/2011 05:48 AM, Ronnie Sahlberg wrote:
> This patch adds configuration variables for iSCSI to set
> initiator-name to use when logging in to the target,
> which type of header-digest to negotiate with the target
> and username and password for CHAP authentication.
>
> This allows specifying a initiator-name either from the command line
> -iscsi initiator-name=iqn.2004-01.com.example:test
> or from a configuration file included with -readconfig
> [iscsi]
>    initiator-name = iqn.2004-01.com.example:test
>    header-digest = CRC32C|CRC32C-NONE|NONE-CRC32C|NONE
>    user = CHAP username
>    password = CHAP password

header digest and user look like they should be options to the block 
driver.  For the password you can reuse the system used by qcow2 perhaps?

Paolo