Comment 4 for bug 1392792

Reviewed: https://review.openstack.org/136535
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=7b1d7a31335bd8723551c9af5c270927ad830c3f
Submitter: Jenkins
Branch: stable/juno

commit 7b1d7a31335bd8723551c9af5c270927ad830c3f
Author: Lucian Petrut <email address hidden>
Date: Fri Nov 14 18:22:04 2014 +0200

    Change CHAP secret default length

    Some of the iSCSI initiators have a limit regarding the maximum
    CHAP secret length. For example, the MS iSCSI Initiator
    does not allow CHAP secrets longer than 16 characters, smaller
    than the actual default 20 characters length.

    This patch simply changes the default length to 16 characters,
    value which is already used by default by some of the volume
    drivers. In fact, the iSCSI specs state that: "Implementations
    MUST support use of up to 128 bit random CHAP secrets".

    Change-Id: I0295fabd0c0048c93e1f452077d0f5d19af9784d
    Closes-Bug: #1392792
    (cherry picked from commit 3e124edb5dbbd5b48bb8816e6c1b60f5a0fa03db)