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412c850f07
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>
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