read_procfs
res = read_procfs("/proc/sys/kernel/unprivileged_bpf_disabled");
res = read_procfs("/proc/sys/net/core/bpf_jit_enable");
res = read_procfs("/proc/sys/net/core/bpf_jit_harden");
res = read_procfs("/proc/sys/net/core/bpf_jit_kallsyms");
res = read_procfs("/proc/sys/net/core/bpf_jit_limit");