lldpd can send several hardware inventory TLV fields. Extend the init
script to provide these when the existing flag 'lldpmed_no_inventory' is
disabled. Five new methods provide default values for some of them,
taken from /etc/os-release and /etc/board.json.
There is no homogeneous method to determine the hardware serial number,
so it can be provided manually, as can asset ID.
Note: properties >= 32 characters are truncated at send time (by lldpd),
and some (Cisco) equipment displays junk after strings >= 32 characters.
So truncate to 31.
Tested on: 24.10.0 (known compatible with 22 and 23 also)
===
Example
===
The following lldpd config lines:
configure inventory hardware-revision "v0"
configure inventory software-revision "r28427-6df0e3d02a"
configure inventory firmware-revision "OpenWrt 24.10.0"
configure inventory serial-number "ABCDEF-123456"
configure inventory manufacturer "glinet"
configure inventory model "GL.iNet GL-MT6000"
# 32 characters:
configure inventory asset "abcdefghijklmnopqrstuvwxyz 12345"
Produce the following TLV (decoded by Wireshark):
Telecommunications Industry Association TR-41 Committee - Inventory - Hardware Revision
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0000 0110 = TLV Length: 6
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Hardware Revision (0x05)
Hardware Revision: v0
Telecommunications Industry Association TR-41 Committee - Inventory - Firmware Revision
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0001 0011 = TLV Length: 19
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Firmware Revision (0x06)
Firmware Revision: OpenWrt 24.10.0
Telecommunications Industry Association TR-41 Committee - Inventory - Software Revision
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0001 0101 = TLV Length: 21
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Software Revision (0x07)
Software Revision: r28427-6df0e3d02a
Telecommunications Industry Association TR-41 Committee - Inventory - Serial Number
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0001 0100 = TLV Length: 20
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Serial Number (0x08)
Serial Number: ABCDEF-123456
Telecommunications Industry Association TR-41 Committee - Inventory - Manufacturer Name
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0000 1010 = TLV Length: 10
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Manufacturer Name (0x09)
Manufacturer Name: glinet
Telecommunications Industry Association TR-41 Committee - Inventory - Model Name
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0001 0101 = TLV Length: 21
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Model Name (0x0a)
Model Name: GL.iNet GL-MT6000
Telecommunications Industry Association TR-41 Committee - Inventory - Asset ID
1111 111. .... .... = TLV Type: Organization Specific (127)
.... ...0 0010 0011 = TLV Length: 35
Organization Unique Code: 00:12:bb (Telecommunications Industry Association TR-41 Committee)
Media Subtype: Inventory - Asset ID (0x0b)
Asset ID: abcdefghijklmnopqrstuvwxyz 1234
The Cisco DUT displays:
Hardware Revision: v0
Firmware Revision: OpenWrt 24.10.0
Software Revision: r28427-6df0e3d02a
Serial Number: ABCDEF-123456
Manufacturer Name: glinet
Model Name: GL.iNet GL-MT6000
Asset ID: abcdefghijklmnopqrstuvwxyz 1234
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18354
Signed-off-by: Robert Marko <robimarko@gmail.com>
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Download
Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.
If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.
An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:
Development
To build your own firmware you need a GNU/Linux, BSD or macOS system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.7+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
-
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
-
OpenWrt Packages: Community repository of ported packages.
-
OpenWrt Routing: Packages specifically focused on (mesh) routing.
-
OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0
