Variable names in urls for HTTP_PATH

[sweroam-mibr]

Describe the bug

A way to send a variable, eg the mac address or serial number in the HTTP_PATH

Ex
HTTP_HOST=example.com
HTTp_PORT=80
HTTP_PATH=/files/%MAC%

Will result in http://example.com:80/files/001122334455/boot.bin

Then its possible to load custom OS for each device.

Steps to reproduce the behaviour

Set Config i eeörom

Device (s)

Raspberry Pi 5, Raspberry Pi 4 Mod. B, Raspberry Pi 400, Raspberry Pi CM4, Raspberry Pi CM4 Lite, Raspberry Pi CM4-S

Bootloader configuration.

As description

System

No response

Bootloader logs

No response

USB boot

No response

NVMe boot

No response

Network (TFTP boot)

No response

[timg236]

Low priority but might be useful to make this consistent with TFTP_PREFIX
https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#TFTP_PREFIX