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Re: [Qemu-devel] [PATCH 6/6] pr-manager-helper: report event on connecti

From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH 6/6] pr-manager-helper: report event on connection/disconnection
Date: Thu, 28 Jun 2018 15:24:24 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0

On 06/28/2018 02:57 PM, Paolo Bonzini wrote:
Let management know if there were any problems communicating with
qemu-pr-helper.  The event is edge-triggered, and is sent every time
the connection status of the pr-manager-helper object changes.

Is this something that guest actions can intentionally trigger, and thus cause a DoS attack by flooding the management app with events faster than they can process? If so, this event should use rate-limiting.

Signed-off-by: Paolo Bonzini <address@hidden>
  qapi/block.json          | 24 ++++++++++++++++++++++++
  scsi/pr-manager-helper.c | 14 ++++++++++++++
  2 files changed, 38 insertions(+)

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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