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iotivity-example-20170511rzr.pdf

 iotivity-example-20170511rzr.pdf

0cc1872932b8c70d310bcaf768013104?s=128

Phil "RzR" Coval

May 11, 2017
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  1. Samsung Open Source Group 1 Samsung Open Source Group #OSIS2017

    Framework for IoT interoperability Philippe Coval Samsung Open Source Group / SRUK philippe.coval@osg.samsung.com From sensors to Tizen devices and beyond ? Open Source Innovation Spring #OSIS2017, CNRS Paris, France <2017-07-11>
  2. Samsung Open Source Group 2 Samsung Open Source Group #OSIS2017

    /whois Philippe Coval • Software engineer for Samsung Research – Belongs to Open Source Group (S-OSG) EU/UK team • I am based in Rennes, France – Commits into IoTivity, Tizen, Yocto, Automotive OS (GENIVI, AGL)... – Ask me about FLOSS, OSHW, DIY, Communities • Find me online – https://wiki.tizen.org/wiki/User:Pcoval
  3. Samsung Open Source Group 3 Samsung Open Source Group #OSIS2017

    Agenda • What is Open Connectivity's IoTivity ? • Demo and examples ?
  4. Samsung Open Source Group 4 Samsung Open Source Group #OSIS2017

    Internet of Things is: A complex equation • Where all parameters are correlated : – Connectivity: not only Internet, probably IP, but not only • Personal (<1m), Local (<10m - 10km), Metropolitan (<10km), Wide Area (<1000Km) – Security matters ! (during all expected life span) • Several surfaces of attacks: service, monitoring, upgrade – Cost of materials and cost of usage: • Computing capability (CPU or MCU?), consumption, if 24x7 • Development, maintenance: FLOSS or Closed source ?
  5. Samsung Open Source Group 5 Samsung Open Source Group #OSIS2017

    • Many Silos / Many implementations : – One app per device (better than many remote controls) – Dependence on centralized models (hub/cloud) • Many concerns or issues: – Security/Privacy concerns? – Long term support and maintenance? – Do we want critical devices exposed to the Internet ? • Few Interoperability/Interconnection of today's things. IoT: Internet of Today or Internet of Troubles ?
  6. Samsung Open Source Group 6 “Without trust there's no cooperation.

    And without cooperation there's no progress. History stops.” ~ Rick Yancey, The Last Star
  7. Samsung Open Source Group 7 Samsung Open Source Group #OSIS2017

    Open connectivity foundation's mission • Provide software linking the Internet Of Things – Focus on interoperability and seamless connectivity between devices • Write specification, Establish a protocol, – Rely on existing standards (CoAP, TLS), or OSS libs • Sponsor Reference implementation: – OpenSource (Apache 2.0 license) • Hosted by Linux Foundation (like kernel, Tizen etc) – Rule: No unimplemented features in specification • Certify conformance to standard of products • Above 300 members already joined, did you?
  8. Samsung Open Source Group 8 Samsung Open Source Group #OSIS2017

    Common technology for multiple profiles Architecture RESTful CRUD-N Communication CoAP, CBor +Security DTLS Semantics RAML Smart Home: Zigbee Blue Tooth Personal Devices Wearables: BLE Cloud: HTTP/ TCP Mobilty Automotive LTE* V2X* ...
  9. Samsung Open Source Group 9 Samsung Open Source Group #OSIS2017

    IoTivity Framework for connecting devices • Core cross platform libraries – C API: resource layer + connectivity abstraction (IP, BT, BLE...) • Link to libcoap, tinycbor (code footprint ~128KiB-) – C++ API: C++11 bindings to build extra services • + High level services (Mostly C++) – Data/Device Management: Container, Hosting, Encapsulation, Scene – Simulator (Eclipse based), http proxy • + Plugins: Transport, Cloud Interface, Bridging • Related projects – IoTivity-Node: Javascript bindings – IoTivity-contrainted: For thin devices (micro-controllers)
  10. Samsung Open Source Group 10 Samsung Open Source Group #OSIS2017

    Flow: Create, Read, Update, Delete, Notify IoTivity Server IoTivity Client(s) Local IP Network Registration of resource Handling new requests Set/Get/ing properties values Initialization as server Initialization as client Handling new clients Discovery of resource POST/ GET UDP Multicast + CoAP Notify updated resource Observe resource change & Handling properties OBSERVE
  11. 11 Samsung Open Source Group #OSIS2017 CES2017 Smart Home+Automotive https://youtu.be/3d0uZE6lHo#smarthome-ces2017

    Automotive: SmartHome interaction and more – https://wiki.iotivity.org/automotive
  12. Samsung Open Source Group 12 Samsung Open Source Group #OSIS2017

    Resource Model /example/BinarySwitchResURI { “p” : Discoverable & Observable & Secured, “if” : ["oic.if.a","oic.if.baseline"], “rt” : [“oic.r.switch.binary”], “value” : true ... } URI: + common properties: Policy: & Interface: Resource Type: + attribute(s) • Well knows resources URI (/oic/*): – “res” discovery, “p” for platform , “d”: device (role: C/S), “sec/*” : security
  13. Samsung Open Source Group 13 Samsung Open Source Group #OSIS2017

    Data models can be: • Described – For RESTful operations (CRUD) – RAML+JSON Schemas • Reviewed and validated – OCF check consistency • Shared – OneIotA.org tool & repository • Note: – IoTivity works with private models too • oic.r.switch.binary.json – http://www.oneiota.org/revisions/1580 • /* … */ "definitions": { "oic.r.switch.binary": { "properties": { "value": { "type": "boolean", "description": "Status of the switch" } } } /* … */
  14. Samsung Open Source Group 14 Samsung Open Source Group #OSIS2017

    Hardware Support • Desktop, Mobile... • Single Board Computers: RaspberryPI, ARTIK modules... – Full stack (CSDK, C++, C++ Services) – IoTivity-node (Javascript bindings) – OS: Tizen, Yocto, and most GNU/Linux distros • Microcontollers: – IoTivity-constrained: implementation of OCF protocol – OS: Baremetal, Linux, Zephyr, TizenRT, RIOT (WIP) – Note CSDK (1.2.1-) supported ATmega2560
  15. Samsung Open Source Group 15 Samsung Open Source Group #OSIS2017

    Security matters • Connectivity Abstraction layer establishes secure channel using DTLS • Devices need to be provisioned (using onboarding tool): – Establish ownership in user's network • Secure Resource Manager (SRM) – Secure Virtual resources • Device provisioning, Credentials, Access control list, persistence – Policy engine: Request filtering: Grant, deny resource requests • Per policy, requester ID, ACL, device status... – Is an OIC resource (“/oic/sec/cred”) • Hardware hardening: use encryption and secure contexts, RNG, IO etc
  16. Samsung Open Source Group 16 “Talk is cheap. Show me

    the code.” ~ Linus Torvalds
  17. 17 Samsung Open Source Group #OSIS2017 Getting started with IoTivity

     IoTivity 1.2.1 is latest release – Uses Scons build system with many options: Transport, Security, Log... – Note: Upstream just enabled security on 1.3-rel  Prefer to use or rebuild packages to local build/install – Use standard path (/usr/include …)  Major Operating system are supported – Tizen provides RPM/spec for Tizen:3 profiles, with security enabled – Yocto's meta-oic ships it with security disabled like upstream – Debian, Ubuntu, deb packages are possible too • Details: https://wiki.iotivity.org/os , https://wiki.iotivity.org/build Samsung Open Source Group
  18. 18 Samsung Open Source Group #OSIS2017 IoTivity-example tutorial  OCF

    application developers might not develop in upstream source tree – SCons build system is complex (even for sample apps)  A standalone project is better to get inspiration from or derivate (SDK?) – Tend to be minimalist, can be used as base (fork it at will)  Download a collection of standalone subprojects: – git clone http://git.s-osg.org/iotivity-example/ ; make  Each ”feature” subproject is a git module (pulling a branch based on other) – Nice history to understand each steps – For many OSes or build system (Currently, GNUmake, Linux, Tizen, More welcome) Samsung Open Source Group
  19. 19 Samsung Open Source Group #OSIS2017 Base example: Resource discovery

     branch=example/master (src/example/master/README.md) – Server register a “dummy” resource identified as “/ExampleResURI” – Client discover and list all resources' endpoints served in local network – GNUmake is used to build it – Systemd service provided to start it once installed  branch=example/packaging is based on previous one – Yocto Bitbake recipe – Tizen RPM spec file – Debian/Ubuntu packaging files too (more welcome) Samsung Open Source Group
  20. 20 Samsung Open Source Group #OSIS2017 IoTivity Server IoTivity Client(s)

    IP Network Resource discovery example flow class IoTServer { int main() { init(); … } OC::PlatformConfig mPlatformConfig; void init() { mPlatformConfig = OC::PlatformConfig (OC::ServiceType::InProc, OC::ModeType::Server, // different that C "0.0.0.0", 0, // default for all subnets / ifaces OC::QualityOfService::LowQos //or HighQos ); OCPlatform::Configure(mPlatformConfig); } }; class IoTClient { int main() { init(); … } OC::PlatformConfig mPlatformConfig; void init() { mPlatformConfig = OC::PlatformConfig (OC::ServiceType::InProc, OC::ModeType::Client, // different than S "0.0.0.0", 0, // on any random port available OC::QualityOfService::LowQos // or HighQos ); OCPlatform::Configure(mPlatformConfig); } };
  21. 21 Samsung Open Source Group #OSIS2017 main { IoTServer::init() {

    ModeType::Server } IoTServer::createResource() { OCPlatform::registerResource(... uri …) } // loop on OCProcess() is called internally } main { IoTClient::init() { ModeType::Client } IoTClient::start() { OCPlatform::findResource(onFindCallback) } IoTClient::onFind(resource) { print(resource->uri) } IoTivity Server IoTivity Client(s) IP Network Resource discovery example flow $ ./bin/server -v (...) log: { IoTServer::createResource(...) log: Successfully created\ org.example.r.example resource log: } OCStackResult (...) $ ./bin/client -v (...) log: { void IoTClient::onFind(...) log: Resource: uri: /oic/d (...) log: Resource: uri: /ExampleResURI coap://[fe80::baca:3aff:fe9b:b934%25eth0]:47508
  22. Samsung Open Source Group 22 Samsung Open Source Group #OSIS2017

    Binary switch example • Actuator, client change value (on/off) of server's resource • IoTivity-example's branch=switch/master – Is based on “example/packaging” and adapted • Usage: ./bin/client menu: 0) Set value off 1) Set value on (...) 1 ./bin/server -v log: { OCEntityHandlerResult IoTServer::handleEntity(...) log: { OCStackResult IoTServer::handlePost(...) log: { void Platform::setValue(bool) 1 log: } void Platform::setValue(bool) log: { void IoTServer::postResourceRepresentation()
  23. Samsung Open Source Group 23 Samsung Open Source Group #OSIS2017

    OCResource::post(rep, callback); onPost(...) Switch Example: Resource update OCPlatform::Configure(...); OCPlatform::registerResource( …); handleEntity(OCResourceRequest) { switch entityHandlerRequest->method { case 'POST: // update actuator resource (physically) ... OCPlatform::sendResponse(response); }} OCPlatform::Configure(...); OCPlatform::findResource(...); onFind(... resource ...) IoTivity Server IoTivity Client(s) IP Network IP Network • Client controls actuator: – Set resource's value • Server is handling request – and responding
  24. Samsung Open Source Group 24 Samsung Open Source Group #OSIS2017

    Interaction with products • Tizen is an Operating System based on FLOSS • Shipped into consumer electronics products • Tizen IoTivity – Tizen:3 contains as platform package (.rpm) – Tizen:2 can ship shared lib into native app (.tpk) • For Samsung Z{1,2,3} (Tizen:2.4:Mobile) • Samsung GearS{2,3} (Tizen:2.3.x:Wearable)
  25. 25 Samsung Open Source Group #OSIS2017 Derivate to Tizen native

    app  iotivity-example branches for Tizen devices: – Mobile (Z1) : switch/tizen/2.4/mobile/master – Wearables (GearS2) : sandbox/pcoval/tizen/wearable/2.3.2/master  Need to rebuild IoTivity’s shared lib (to be bundled in tpk): – Use helper script build rpm and unpack lib – ./tizen.mk ; ls lib/*.so – ./tizen.mk run # deploy on root device (ie TM1)  More details or ask for help: – https://wiki.iotivity.org/tizen Samsung Open Source Group
  26. Samsung Open Source Group 26 Samsung Open Source Group #OSIS2017

    Want more ?
  27. 27 Samsung Open Source Group #OSIS2017 Smart City’s Street lights

    use case  Various examples combined in demo using nodejs – Branch “sandbox/pcoval/on/master/demo” • Defective Street lights notification service – Sensor to read luminance – Switch front light on if too dark – Send message to ARTIK cloud – Using geolocation client/server Samsung Open Source Group 1 1 2 3 5 6 4 7
  28. Samsung Open Source Group 28 Samsung Open Source Group #OSIS2017

    From devices to cloud AutoLinux demo https://vimeo.com/202478132#iotivity-artik-20170204rzr 1 2 1
  29. Samsung Open Source Group 29 Samsung Open Source Group #OSIS2017

    /GeoLocationResURI { latitude: 52.165, longitude: -2.21, } A Vehicle to Infrastructure notification service function handle(illuminance) { if (gThreshold > illuminance) { var data= { illuminance: illuminance, latitude: gGeo.latitude, longitude: gGeo.longitude }; sender.send(data); // { ARTIK's client.post(url...); } } } client.on("resourcefound", function(resource) { if ("/IlluminanceResURI" === resource.resourcePath) { resource.on("update", handle); } else if ("/GeolocationResURI" === resource.resourcePath) { resource.on("update", function(resource) { gGeo = resource.properties; }); } }; 1 2 /IlluminanceResURI { illuminance: 42 } https://api.artik.cloud/ { illuminance: 42, latitude: 52.165, longitude: -2.21 } 3 1
  30. Samsung Open Source Group 30 Samsung Open Source Group #OSIS2017

    Forward data to a cloud backend • Login your artik.io dashboard – Select or (re)define “OCF” data models • https://developer.artik.cloud/dashboard/devicetypes – Declare devices: (Copy IDs) • https://my.artik.cloud/devices – Monitor: • https://my.artik.cloud/data • Send data on resource “update” event – Using http REST (or CoAP, WebSocket...) require("node-rest-client").Client; client.post(url, message, callback); https://api.artik.cloud/v1.1/messages message = { headers: { 'Content­Type': 'application/json', Authorization: 'bearer BADC0DE(...)DEADBEEF42' }, data: { sdid:'deadbeef(...)badc0de13', ts: 1485178599672, type: 'message', data: { illuminance: 42 } } }
  31. Samsung Open Source Group 31 Samsung Open Source Group #OSIS2017

    Summary • OCF establishes a standard for interconnecting things – Resource model – RESTful architecture – Definitions must be shared to ensure interoperability • Open Source project IoTivity – implements it in C, C++, Java and Javascript – Shipped into Tizen:3+ and available for many OS. – Provide core and hi level services for management, security, cloud
  32. Samsung Open Source Group 32 Samsung Open Source Group #OSIS2017

    References • Entry points: – https://wiki.iotivity.org/examples : git clone iotivity-example – https://wiki.iotivity.org/docker : cloud images from Ondrej Tomcik – http://wiki.iotivity.org/automotive • Going further: – https://openconnectivity.org/resources/iotivity – https://openconnectivity.org/resources/oneiota-data-model-tool – https://news.samsung.com/global/samsung-contributes-to-open-iot-showcase-at-ces-2017 • Keep in touch online: – https://www.meetup.com/OCF-France/ – https://wiki.iotivity.org/community – https://wiki.tizen.org/wiki/Meeting – https://blogs.s-osg.org/author/pcoval/
  33. Samsung Open Source Group 33 Samsung Open Source Group #OSIS2017

    Thank you, Merci, Trugarez, 맙습니다 , 谢谢 Gracias, Danke Schoen! Resources: flaticons CC Contact: https://wiki.tizen.org/wiki/User:Pcoval