Received-SPF: pass (google.com: best guess record for domain of linux-bluetooth-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 27 Aug 2019 20:23:56 +0200
From:   "michal.lowas-rzechonek@silvair.com" 
        <michal.lowas-rzechonek@silvair.com>
To:     "Stotland, Inga" <inga.stotland@intel.com>
Cc:     "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
Subject: Re: [PATCH BlueZ 0/2] mesh: Implement org.bluez.mesh.Node1 properties
Message-ID: <20190827182356.2pbseooolxfazg3g@kynes>
Mail-Followup-To: "Stotland, Inga" <inga.stotland@intel.com>,
        "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
References: <20190827090844.21394-1-michal.lowas-rzechonek@silvair.com>
 <4f4cc80d57738604b3b38049a1aecb6b75e57be2.camel@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <4f4cc80d57738604b3b38049a1aecb6b75e57be2.camel@intel.com>
User-Agent: NeoMutt/20180716
Sender: linux-bluetooth-owner@vger.kernel.org
Precedence: bulk

Hi,

On 08/27, Stotland, Inga wrote:
> > adds two additional properties: list of unicast addresses
> > claimed by the node and the current sequence number value.
> Could you please explain the justification for adding these two new
> properties?

Sure thing.

The address part is useful when application would like to talk to its
own node's Config or Health Server. At the moment the address is known
when calling Import or CreateNetwork (even though the application would
then need to store it somewhere, so we end up with two sources of
truth), but after Join() the application won't know the address assigned
to it.

As for sequence number part, reading is mostly for debugging and
verification. A few our users had trouble identifying a problem in their
setup when their node was listed in other nodes' RPL.

In the end I would like to make it writable (increment-only) to enable
address reuse, but as this stage I'm still looking for a way to
implement this without causing a race condition, so I left it readonly
for now.

regards
-- 
Michał Lowas-Rzechonek <michal.lowas-rzechonek@silvair.com>
Silvair http://silvair.com
Jasnogórska 44, 31-358 Krakow, POLAND