sending netcat messages from mac to openthread

[TuKeZ]

Hello, i'm trying to send UDP messages from netcat to openthread.
i'm using command as such:
where IP6ADRESS are any of the ips listed by ipadrr at CLI and I'm able to ping6 it.

echo -n "foo" | nc -u -w1 -6 IP6ADDRESS%wpan0 10000

and I'm able to see the messages are sent with wireshark.

and my application is code is as such:

otSockAddr mSocket = {0};

otUdpSocket uSock = {0};

void init_udp(){

    otIp6SetReceiveCallback(m_app.p_ot_instance, &dataCallback, NULL);

    if(otUdpOpen(m_app.p_ot_instance, &uSock, &udpCallback, m_app.p_ot_instance) == OT_ERROR_NONE){}

    memcpy(&(mSocket.mAddress), findLocalAddr(m_app.p_ot_instance), sizeof(mSocket.mAddress));

    mSocket.mPort = 10000;

    mSocket.mScopeId = 8; //Tested 2,5,8

    if(otUdpBind(&uSock, &mSocket) == OT_ERROR_NONE){}

}

I've paired the device to the border router as per meshcop example and i'm able to receive ip address to the device.
findLocalAddr returns first entry where preferred == 1 and valid == 1 using list unicast addresses API call.

I'm able to see that i'm receiving some (crypted?) messages at dataCallback, but i'm never receiving any messages to the udpCallback.

How can I get my receive to work?

[Jonathan Hui]

The `mScopeId` field is used to specify an interface identifier.  Currently, OpenThread supports a single interface (i.e. 8 is an invalid value).  Try setting the `mScopeId` field to 0 (to allow default interface selection) or 1 (to specify the Thread interface).

Hope that helps.

--

Jonathan Hui

On Tue, Jul 18, 2017 at 2:00 AM, TuKeZ <ltu...@gmail.com> wrote:

Hello, i'm trying to send UDP messages from netcat to openthread.
i'm using command as such:

where IP6ADRESS are any of the ips listed by ipadrr at CLI.

echo -n "foo" | nc -u -w1 -6 IP6ADDRESS%wpan0 10000

and I'm able to see the messages are sent with wireshark.

and my application is code is as such:

otSockAddr mSocket = {0};

otUdpSocket uSock = {0};

void init_udp(){

    otIp6SetReceiveCallback(m_app.p_ot_instance, &dataCallback, NULL);

    if(otUdpOpen(m_app.p_ot_instance, &uSock, &udpCallback, m_app.p_ot_instance) == OT_ERROR_NONE){}

    memcpy(&(mSocket.mAddress), findLocalAddr(m_app.p_ot_instance), sizeof(mSocket.mAddress));

    mSocket.mPort = 10000;

    mSocket.mScopeId = 8;

    if(otUdpBind(&uSock, &mSocket) == OT_ERROR_NONE){}

}

I've paired the device to the border router as per meshcop example and i'm able to receive ip address to the device.
findLocalAddr returns first entry where preferred == 1 and valid == 1 using list unicast addresses API call.

I'm able to see that i'm receiving some (crypted?) messages at dataCallback, but i'm never receiving any messages to the udpCallback.

How can I get my receive to work?

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[TuKeZ]

Awesome scopeid = 0 did miracles. I got confused the scope word with this
https://en.wikipedia.org/wiki/IPv6_address#Address_scopes

thank you for the help.

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