packet-socket.lua
#! /usr/bin/env lua local M = require 'posix.sys.socket' -- Packet socket loopback test -- Need CAP_NET_RAW, otherwise get "Operation not permitted" if M.AF_PACKET ~= nil then local fd = assert(M.socket(M.AF_PACKET, M.SOCK_RAW, 0)) assert(M.bind(fd, {family=M.AF_PACKET, ifindex=M.if_nametoindex("lo")})) assert(M.send(fd, string.rep("1", 64)) == 64) require 'posix.unistd'.close(fd) end