Question about tlv message support

Hello everyone I'm completely new to linux kernel and I would be grateful if you could help me get started. I read some basic things about the kernel. But I couldnt find anything relevant to the question below. So: Does the kernel have any support for the construction and encoding of type/length/value (TLV) or other information element messages? if it has(or if you dont know) where can I find a list or more documentation?