OMA LwM2M Workshop - Julien Vermillard, OMA LwM2M Projects in Eclipse Foundation

LwM2M Workshop 2015
Julien Vermillard - Sierra Wireless

Julien Vermillard / @vrmvrm
Software Engineer at Sierra Wireless
http://airvantage.net M2M Cloud
Apache foundation member
Eclipse committer on Californium, Wakaama
Eclipse Leshan project lead

Eclipse Foundation & Eclipse IoT
Open Standards and Open Source for the Internet of Things
5-Nov-2014

Eclipse History
• Launched by IBM in 2001
– Initial release of the Eclipse technology platform (Platform,
JDT,PDT)
– Founding consortium board comprised Borland, IBM, Red
Hat, …
• Eclipse Foundation formed in 2004
– Independent not-for-profit organization formed in 2004
– Definition of bylaws, membership model, initial IP process
• Eclipse Foundation today, 2014
– Members include IBM, Oracle, SAP, CA, Google, Bosch, etc.
– 204 members, (10 strategic members), ~1000 committers
– ~270 Open Source Projects
2Copyright (c) 2014, Eclipse Foundation, Inc. Made available under the Eclipse Public License 1.0

Eclipse at a Glance
• Organization
– 501(c)6 not-for-profit, USA (Delaware) incorporated,
headquarters in Ottawa, Canada
– 18 employees
• License
– Eclipse Public License is the default
– Other licenses possible by approval of the Board
• Focus areas
– Most project implementations are in Java, but starting to
move into web (JavaScript) and C/C++
– “Eclipse plug-in model”
– Development tools, modeling tools, runtimes, web
development, IoT, Cloud

Eclipse: a sustainable ecosystem
“Eclipse is a vendor-neutral consortium of major
software vendors, solution providers,
corporations, educational and research institutions
and individuals working together
to create a sustainable eco-system that enhances,
promotes and cultivates the Eclipse open platform
with complementary products, services and capabilities.”

Governance
IP Mgt
& Licensing
Projects &
Process
Ecosystem
Development
Infrastructure
What do you need for open
collaboration?

Governanc
e
IP Mgt
& Licensing
Projects &
Process
Ecossytem
Developmen
t
Infra-
structure
Eclipse Working Groups
• Eclipse is the industry’s best model for vendor-
neutral collaboration
• Eclipse Working Groups:
– Licensing model for sharing co-developed innovation
– IP management to maximize commercialization opportunities
– Project model for coordinating investments and activities
– Governance model to ensure a level playing field for all participants
Eclipse gives you these “out of the box”

IoT Architectures
Copyright (c) 2014, Eclipse Foundation, Inc. Made available under the Eclipse Public License 1.0 8
New and existing
devices
IoT Gateways Backend systemsNetwork carriers

Open Source, Open Standards and Community
for IoT
IoT Architectures
Copyright (c) 2014, Eclipse Foundation, Inc. Made available under the Eclipse Public License 1.0 9
New and existing
devices
IoT Gateways Backend systemsNetwork carriers

Protocols
• MQTT
– OASIS standard
– Client and server implementations in Paho,
Mosquitto and Moquette
– Wide commercial adoption: IBM MessageSight,
Facebook Messenger, Eurotech ESF, Sierra Wireless
AirVantage, …
• CoAP
– IETF standard
– Java implementation in Californium
– Lots of traction in the WSN space (Thingsquare,
Everythng, …)
– Foundation for LWM2M – supported by
Sierra Wireless, Bosch SI, Zebra Technologies
5 June 2014 Copyright (c) 2014, Eclipse Foundation, Inc. Made available under the Eclipse Public License 1.0 10

Frameworks
• Application framework for IoT: Kura
– Built on top of Java and OSGi
– Foundation for Eurotech’s Everyware Software
Framework
• ETSI SmartM2M and oneM2M
implementation: OM2M

Solutions
• Home Automation: Eclipse SmartHome
– Based on Java and OSGi
– Very active community with ~100 home automation
driver implementations
– Foundation for Deutsche Telekom’s QIVICON
• IoT network management: Krikkit
– Rules engine for IoT devices
– Powering Cisco’s Data in Motion.
• Industrial control: EclipseSCADA

Tools
• Eclipse Vorto
– Information model for « things » + code generators
– Bosch SI leading

Eclipse IoT Members

Eclipse IoT in Numbers
• 17 projects
• 90+ committers & contributors
• 1.7 Million lines of code
• 700K+ combined unique visitors
• 3 developer sandboxes (MQTT, CoAP, LWM2M)

iot.eclipse.org

Thanks! Questions?

Leshan
Open-source Lightweight M2M for Java

Directly as a library?
Copy/pasted some code? Like TLV parser?
Testing?
Leshan: Who is using it?
?

Leshan
A Java library for implementing LwM2M
servers (and clients)
Friendly for any Java developer (no framework,
few dependencies)
But also a Web UI for discovering and testing
the protocol

History
Started 22 Jul. 2013 @ Sierra Wireless
First external contribution 10 March 2014
Public sandbox Jul. 2014
Proposed as an Eclipse project Sep. 2014
Client contributed Oct. 2014

Details
Who?
Move under Eclipse rules
New sandbox: http://leshan.eclipse.org

Committers
Simon Bernard - Sierra Wireless
Kai Hudalla - Bosch Software Innovations
J.F. Schloman - Zebra Technologies, Zatar
Manuel Sangoï - Sierra Wireless

Features
Client initiated bootstrap
Registration/Deregistration
Read, Write, Create objects
TLV encoding/decoding
OSGi friendly

Features
DTLS Pre shared key
DTLS Raw public key
Standalone web-UI for testing

Modules
leshan-core commons elements
leshan-server-core server lwm2m logic
leshan-server-cf californium server
leshan-client client
leshan-all everything above in 1 jar
leshan-client-example
leshan-standalone application with web UI
leshan-bs-server standalone bootstrap
leshan-integration-tests

Server
Simple Java library
Build using “mvn install”
Based on Californium and Scandium
Under refactoring for accepting other CoAP lib

Server API example
public void start() {
// Build LWM2M server
LeshanServerBuilder builder = new LeshanServerBuilder();
lwServer = builder.build();
lwServer.getClientRegistry().addListener(new ClientRegistryListener() {
@Override
public void registered(Client client) {
System.out.println("New registered client with endpoint: " + client.getEndpoint());
}
@Override
public void updated(Client clientUpdated) {
System.out.println("Registration updated”);
}
@Override
public void unregistered(Client client) {
System.out.println("Registration deleted”);
}
});
// start
lwServer.start();
System.out.println("Demo server started");
}

Server API example
// prepare the new value
LwM2mResource currentTimeResource = new LwM2mResource(13,
Value.newDateValue(new Date()));
// send a write request to a client
WriteRequest writeCurrentTime = new WriteRequest(client, 3, 0, 13,
currentTimeResource, ContentFormat.TEXT, true);
ClientResponse response = lwServer.send(writeCurrentTime);
System.out.println("Response to write request from client " +
client.getEndpoint() + ": " + response.getCode());

Implements your own store
ClientRegistry:
Store currently registered clients
SecurityRegistry:
Store security informations
Default implementations are “in-memory”
for demo only!

Client
Under construction! API will probably change
Create objects, answer to server requests
DTLS supported in master
Checkout: leshan-client-example

Next steps
Eclipse.org migration
DTLS X.509
CoAP shim, CoAP TCP
Stable API for June
To be done:
Json
SMS
Server initiated bootstrap

How to help?
Use it! Report bugs, issue, missing features
Write documentation
Talk about it (in your company, IoT meetup,...)
Contribute code
Questions?
https://dev.eclipse.org/mailman/listinfo/leshan-dev

Eclipse Wakaama
Lightweight M2M implementation in C
Photo credits: https://www.flickr.com/photos/30126248@N00/2890986348

Wakaama: Who is using it?
Directly as a library?
Copy/pasted some code?
Testing?
?

Wakaama
A C client and server implementation of LwM2M
Not a shared library (.so/.dll)
Embedded friendly but using malloc/free
Plug your own IP stack and DTLS implementation

History
Started as liblwm2m by Intel on May 2013
https://github.com/01org/liblwm2m
Proposed as Eclipse project Dec. 2013
Code imported at Eclipse July 2014

Who?
David Navarro - Intel

Features
Register, registration update, deregister
Read, write resources
Read, write, create, delete object instances
TLV or plain text
Observe

Structure
core :
internals.h liblwm2m.c liblwm2m.h
list.c management.c objects.c observe.c
packet.c registration.c tlv.c transaction.c
uri.c utils.c
core/er-coap-13 :
er-coap-13.c er-coap-13.h

Structure
tests/client:
lwm2mclient.c object_device.c
object_firmware.c object_location.c
object_security.c object_server.c test_object.c
tests/server: lwm2mserver.c

lwm2m_object_t * get_object_device()
{
lwm2m_object_t * deviceObj;
deviceObj = (lwm2m_object_t *)lwm2m_malloc(sizeof(lwm2m_object_t));
if (NULL != deviceObj)
{
memset(deviceObj, 0, sizeof(lwm2m_object_t));
deviceObj->objID = 3;
deviceObj->readFunc = prv_device_read;
deviceObj->writeFunc = prv_device_write;
deviceObj->executeFunc = prv_device_execute;
deviceObj->userData = lwm2m_malloc(sizeof(device_data_t));
if (NULL != deviceObj->userData)
{
((device_data_t*)deviceObj->userData)->time = 1367491215;
strcpy(((device_data_t*)deviceObj->userData)->time_offset, "+01:00");
}
else
{
lwm2m_free(deviceObj);
deviceObj = NULL;
}
}
return deviceObj;
}
Create objects!

objArray[0] = get_object_device();
if (NULL == objArray[0])
{
fprintf(stderr, "Failed to create Device objectrn");
return -1;
}
objArray[1] = get_object_firmware();
{
fprintf(stderr, "Failed to create Firmware objectrn");
return -1;
}
objArray[2] = get_test_object();
{
fprintf(stderr, "Failed to create test objectrn");
return -1;
}
lwm2mH = lwm2m_init(prv_connect_server, prv_buffer_send, &data);
if (NULL == lwm2mH)
{
fprintf(stderr, "lwm2m_init() failedrn");
return -1;
}
result = lwm2m_configure(lwm2mH, "testlwm2mclient", BINDING_U, NULL, OBJ_COUNT, objArray);
...
result = lwm2m_start(lwm2mH);
Configure
Wakaama

while (0 == g_quit)
{
struct timeval tv;
tv.tv_sec = 60;
tv.tv_usec = 0;
/*
* This function does two things:
* - first it does the work needed by liblwm2m (eg. (re)sending some packets).
* - Secondly it adjust the timeout value (default 60s) depending on the state of the transaction
* (eg. retransmission) and the time between the next operation
*/
result = lwm2m_step(lwm2mH, &tv);
if (result != 0)
{
fprintf(stderr, "lwm2m_step() failed: 0x%Xrn", result);
return -1;
}
Active loop

Next?
Device initiated bootstrap
More example: https://github.
com/jvermillard/Wakaama-mbed
Server?
Block transfer?

Hack it into real devices!
Courtesy of Bosch Software Innovations!

Spark Core
Cortex-M3 STM32,
RAM/ROM 20/128k, 72MHz
WiFi
wakaama (old: 09.2014 version)+TinydTLS-0.5:
ROM/RAM: 75,6kB/13,1kB

U-blox MBed.org
Cortex-M3 (NXP LPC1768),
GPRS
Current BOSCH wakaama-snapshot:
Function: observe, attribute:
Objects: server, security, device, conn_m, firmware, location,
ROM/RAM: 84kB/22kB

Arduino
AVR, ATmega2560,
Ethernet
Current BOSCH wakaama-snapshot:
Function: observe, attribute:
Objects: server, security, device, conn_m, firmware, location,
ROM/RAM: 67kB/5kB

Lua binding
https://github.com/sbernard31/lualwm2m
With DTLS support using:
https://github.com/sbernard31/luadtls
binding on
http://tinydtls.sf.net

Thanks!
More questions?
jvermillard@sierrawireless.com
http://twitter.com/vrmvrm

OMA LwM2M Workshop - Julien Vermillard, OMA LwM2M Projects in Eclipse Foundation

More Related Content

What's hot (20)

Viewers also liked (20)

Similar to OMA LwM2M Workshop - Julien Vermillard, OMA LwM2M Projects in Eclipse Foundation (20)

More from Open Mobile Alliance (20)

Recently uploaded (20)

OMA LwM2M Workshop - Julien Vermillard, OMA LwM2M Projects in Eclipse Foundation