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Subject: Re: Issue with mesh provisioning.
To:     Steve Brown <sbrown@ewol.com>,
        "Von Dentz, Luiz" <luiz.von.dentz@intel.com>
Cc:     linux-bluetooth@vger.kernel.org,
        Jonas Remmert <j.remmert@phytec.de>
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 <4fa544fa04d907de54ab713eb0d0901593d2687e.camel@ewol.com>
From:   Shaik Mahaboob Nazeer <nazeer.m@phytec.in>
Message-ID: <c39d487d-7e7f-b4d2-17a8-fe8e9d293159@phytec.in>
Date:   Thu, 16 May 2019 11:42:07 +0530
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hi Steve,

Yes with this changes it is working as expected. 

Best Regards.

On 15/05/19 17:42, Steve Brown wrote:
> Hi Luiz,
> 
> Would this be an appropriate fix.
> 
> It seems to solve the problem.
> 
> diff --git a/tools/mesh/gatt.c b/tools/mesh/gatt.c
> index 2269a20cf..0a942d4eb 100644
> --- a/tools/mesh/gatt.c
> +++ b/tools/mesh/gatt.c
> @@ -415,8 +415,11 @@ static bool sock_read(struct io *io, bool prov, void *user_data)
>  	msg.msg_iovlen = 1;
>  
>  	while ((len = recvmsg(fd, &msg, MSG_DONTWAIT))) {
> -		if (len <= 0)
> +		if (len <= 0) {
> +			if (errno == EAGAIN)
> +				break;
>  			return false;
> +		}
>  
>  		res = buf;
>  		len_sar = mesh_gatt_sar(&res, len);
> 
> If so, I'll submit a patch.
> 
> Steve
> 
> On Wed, 2019-05-15 at 13:48 +0300, Von Dentz, Luiz wrote:
>> Hi Steve,
>>
>> That specific patch doesn't change the meshctl, the following one
>> does:
>>
>> commit d6eec1b67d6d9e3336b7e3cd8f655baf408d864a
>> Author: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
>> Date:   Mon Nov 19 17:35:54 2018 +0200
>>
>>     meshctl: Switch from write to sendmsg for Acquire*
>>
>>     Use sendmsg with MSG_NOSIGNAL to prevent crashes involving
>> SIGPIPE.
>>
>> Not sure what is the problem with that since we just switch from a
>> pipe to a socketpair.
>>
>> On Wed, May 15, 2019 at 1:01 PM Steve Brown <sbrown@ewol.com> wrote:
>>> On Tue, 2019-05-14 at 15:25 -0400, Steve Brown wrote:
>>>> On Tue, 2019-05-14 at 14:50 +0530, Shaik Mahaboob Nazeer wrote:
>>>>> hi,
>>>>>
>>>>> -> We tried Zephyr Mesh onoff example on nrf52 eval kit to test
>>>>> the
>>>>> Mesh Functionality.For provisioning of the node
>>>>>    we are using meshctl, built from the latest current master
>>>>> of
>>>>> the
>>>>> bluez source.So during the provisioning of the node when we
>>>>>    start the "meshctl" and run the "discover-unprovisioned on"
>>>>> we
>>>>> are
>>>>> able to get the Device UUID for the provisioning.
>>>>>
>>>>>    Later when we try to provision the node using the "provision
>>>>> <UUID>" command it initiate the provision and does not wait
>>>>>    for the user to enter OOB .You can find the log as below.
>>>>>    /*******************************************/
>>>>>
>>>>
>>>> --- snip ---
>>>>
>>>>>   /**************************************/
>>>>>
>>>>> Could you elaborate a little on the status of the current
>>>>> master of
>>>>> bluez in regards to BLE mesh, is it usable or should we look to
>>>>> older
>>>>> versions?
>>>>>
>>>>> Do you know if there is a common issue while provisioning of
>>>>> the
>>>>> node
>>>>> with the current master and
>>>>> is there anything that need to be configured before
>>>>> provisioning?
>>>>>
>>>> I get the same results.
>>>>
>>>> I check out 48a2c3db1ccff28a615fac56066ca7d721f98d0a
>>>>
>>>> That was the last time I used meshctl.
>>>>
>>>> It requests an oob string and completes provisioning.
>>>>
>>>> Steve
>>>>
>>>
>>> I bisected to
>>>
>>> commit 91df85690cc1943e46ef90561dd1ac0d673ee3d7
>>> Author: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
>>> Date:   Mon Nov 19 15:36:15 2018 +0200
>>>
>>>     client: Switch from write to sendmsg for Acquire*
>>>
>>>     Use sendmsg with MSG_NOSIGNAL to prevent crashes involving
>>> SIGPIPE.
>>>
>>>
>>>
>