Qeole questions

Qeole answers

• What is not allowed in restricted C for eBPF?
• What exactly is usage of cursor_advance in BPF?
• XDP program ip link error: Prog section rejected: Operation not permitted
• What is variable attribute SEC means?
• How to list all bpf program which is loaded into kernel ? (e.g. tc-bpf)
• eBPF - difference between loading, attaching, and linking?
• BPF in python to sniff packets for multiple TCP ports
• eBPF: 'bpf_map_update()' returns the 'invalid indirect read from stack' error
• Is there any tooling for bpfilter allowing to configure a firewall?
• How to release a BPF map that was created by the bpftool?