Installing iCWMP on Raspberry Pi – missing dm-service / TR-181 data model files

[stefanonc023]

Hello,

I am trying to install and use iCWMP (TR-069 client) on OpenWrt running on a Raspberry Pi 4B. My goal is to test basic TR-069 communication (ACS ↔ CPE) in a lab environment, not to build vendor firmware.

I am building OpenWrt from source and using the public iopsys feed. From that feed I can see and select the following packages:

• icwmp
• bbfdm

Both build correctly, but I run into a conceptual / structural problem related to the TR-181 data model.

bbfdm expects a datamodel input directory (usually called dm-service) that contains TR-181 XML files such as Device.DeviceInfo.xml, Device.WiFi.xml, etc. These XML files are needed for defining the TR-181 data model that iCWMP exposes.

In my setup, the public iopsys feed only contains:

feeds/iopsys/

• bbfdm
• icwmp

There is no dm-service directory or any TR-181 XML files included. Because of this, bbfdm has no input data model to work with, and it is unclear how TR-181 parameters are supposed to be defined on a non-vendor target like Raspberry Pi.

From what I understand, bbfdm does not generate a TR-181 data model on its own, but instead consumes existing XML definitions. This makes dm-service a required component, but it does not seem to be publicly available.

What I am trying to achieve is a minimal, clean setup where:

• OpenWrt runs on Raspberry Pi
• iCWMP is installed
• a basic TR-181 data model is exposed
• TR-069 communication can be tested against an ACS (e.g. GenieACS)

My questions are:

1. Is dm-service (the TR-181 XML data model) intentionally not included in the public iopsys feed (for licensing or vendor reasons)?
2. For a non-vendor, test-only setup, what is the recommended approach?

• Should I create a minimal TR-181 XML set myself?
• Is there a publicly available TR-181 XML reference that is allowed to be reused?
• Is there an alternative OpenWrt-native way to test iCWMP without bbfdm?

3. Is there any example (even minimal) of a dm-service layout that is known to work with bbfdm and iCWMP?

I want to avoid pulling random XML files from the internet without understanding licensing implications, and I want to follow best practices if possible. At the same time, I would like to have a reproducible setup that others can also use for learning and testing TR-069.

Environment:

• OpenWrt: 24.10.4
• Target: Raspberry Pi 4B (aarch64)
• Build host: Ubuntu 24.04
• iopsys feed: public (bbfdm + icwmp available, dm-service missing)

Any clarification from people familiar with iCWMP, bbfdm, or TR-181 on OpenWrt would be greatly appreciated.

Thanks in advance.

[brada4]

@stefanonc023

Environment

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button (red circle; this works best in the 'Markdown' composer view in the blue oval):

Remember to redact passwords, VPN keys, MAC addresses and any public IP addresses you may have:

ubus call system board

[stefanonc023]

{
	"kernel": "6.6.110",
	"hostname": "OpenWrt",
	"system": "ARMv8 Processor rev 3",
	"model": "Raspberry Pi 4 Model B Rev 1.5",
	"board_name": "raspberrypi,4-model-b",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "24.10.4",
		"revision": "r28959-29397011cc",
		"target": "bcm27xx/bcm2711",
		"description": "OpenWrt 24.10.4 r28959-29397011cc",
		"builddate": "1760891865"
	}
}

This is output of that command

[brada4]

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