How does roa_check(roa_table,net,bgp_path.last) work?
Having such a ROA as example:
origin AS: 64513
prefix: 78.150.40.0/20
max mask: 24

and a BGP announcement:
origin AS: 64514
prefix: 78.150.45.0/22

so it's as invalid, but how does this check work?
roa_table: validated roa record (validated cache)
net: should be the current prefix so 78.150.45.0/22
what is bgp_path.last and how does roa_check function do the check?

Thanks,

Fabiano