I want to create dhcp server on linux by use linux raw_socket. But I can't find the way to fill out vender specific option in dhcp OFFER packet. Please tell me how to do that or how to study that.
Here's some links to get you started:
http://www.ingmarverheij.com/microsoft-vendor-specific-dhcp-options-explained-and-demystified/
https://git.busybox.net/busybox/tree/networking/udhcp/dhcpc.c