BroadBand Forum Data Models (BBFDM)

bbfdm is a data model library implementation which includes a list of objects, parameters and operates used for CPE management through remote control protocols such as TR-069/CWMP or TR-369/USP. This package comprises of the below libraries:

Library	Description
libbbfdm	This provides the mechanism to add new parameters or extend the existing DM tree using json plugin or shared library plugin.
libbbf_api	This provides the APIs for UCI, Ubus, JSON, CLI and memory management.
libbbf_ubus	This library helps to expose the datamodel directly over ubus. Application can expose any datamodel(need not be part of "Device."/TR-181) using this library.

Note: Applications that use libbbf_ubus to expose datamodel, not required to use libbbfdm.

Design of bbfdm

bbfdm library is structred as follow :

├── dm...(.c and .h)
├── dmtree
│   ├── json
│   ├── tr104
│   ├── tr143
│   ├── tr181
│   └── vendor
│       ├── iopsys
│       ├── openwrt
│       └── vendor.h
├── libbbf_api
├── libbbf_ubus
├── scripts
└── tools

• dmtree folder which includes all supported Data Models. It contains 5 folders:

  • tr181 folder : TR-181 Data Model files

  • tr104 folder : Voice Services Data Model files

  • tr143 folder : Diagnostics Data Model files

  • vendor folder : Vendor Data Model files

  • json folder : TR-181 and TR-104 JSON files

• libbbf_api folder which contains the source code of all API functions (UCI, Ubus, JSON, CLI and memory management). These API are used for GET/SET/ADD/Delete/Operate calls which can be called in internal or external packages. All APIs exposed by libbbf_api are presented in this header file libbbf_api.h.

• libbbf_ubus folder which contains the source code of all API functions helps in exposing datamodel constructed with the help of libbbf APIs directly over ubus. All APIs exposed by libbbf_ubus are presented in this header file libbbf_ubus.h.

• scripts folder which contains the Diagnostics scripts

• tools folder which contains some tools to generate Data Model in C, JSON, XML and Excel format

• dm...(.c and .h) files which contains the bbfdm engine (operate, diagnostics) functions

Important Topics

• Design for firmware activation
• TR181 Firewall datamodel mappings
• Datamodel extension using JSON plugin
• Add support of a new Object/Parameter
• How to add new vendor
• Dynamic Object/Parameter/Operate/Event
• BBFDM Tools
• Expose datamodel over UBUS using libbbf APIs

Dependencies of of libbbfdm and libbbf_ubus

To successfully build libbbfdm or libbbf_ubus, the following libraries are needed:

Dependency	Link	License
libuci	https://git.openwrt.org/project/uci.git	LGPL 2.1
libubox	https://git.openwrt.org/project/libubox.git	BSD
libubus	https://git.openwrt.org/project/ubus.git	LGPL 2.1
libjson-c	https://s3.amazonaws.com/json-c_releases	MIT
libcurl	https://dl.uxnr.de/mirror/curl	MIT
libwolfssl	https://github.com/wolfSSL/wolfssl	GPL-2.0

External dependencies for datamodel objects

Datamodel	Package	Link
Device.BulkData.	bulkdata	https://dev.iopsys.eu/iopsys/bulkdata.git
Device.CWMPManagementServer.	icwmp	https://dev.iopsys.eu/iopsys/icwmp.git
Device.IP.Diagnostics.UDPEchoConfig.	udpecho-server	https://dev.iopsys.eu/iopsys/udpecho.git
Device.IP.Diagnostics.UDPEchoDiagnostics.	udpecho-client	https://dev.iopsys.eu/iopsys/udpecho.git
Device.IP.Interface.{i}.TWAMPReflector.	twamp	https://dev.iopsys.eu/iopsys/twamp-light.git
Device.UPNP.	ssdpd	https://github.com/miniupnp/miniupnp.git
Device.XMPP.	xmppc	https://dev.iopsys.eu/iopsys/xmppc.git
Device.XPON.	ponmngr	https://dev.iopsys.eu/iopsys/ponmngr.git
Device.USPAgent.	obuspa	https://dev.iopsys.eu/fork/obuspa.git
STUN parameters	stunc	https://dev.iopsys.eu/iopsys/stunc.git