1#!/bin/bash 2# 3# Simple example: 4# * pktgen sending with single thread and single interface 5# * flow variation via random UDP source port 6# 7basedir=`dirname $0` 8source ${basedir}/functions.sh 9root_check_run_with_sudo "$@" 10 11# Parameter parsing via include 12# - go look in parameters.sh to see which setting are avail 13# - required param is the interface "-i" stored in $DEV 14source ${basedir}/parameters.sh 15# 16# Set some default params, if they didn't get set 17if [ -z "$DEST_IP" ]; then 18 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 19fi 20[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 21# Example enforce param "-m" for dst_mac 22[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" 23 24# Base Config 25DELAY="0" # Zero means max speed 26COUNT="100000" # Zero means indefinitely 27 28# Flow variation random source port between min and max 29UDP_MIN=9 30UDP_MAX=109 31 32# General cleanup everything since last run 33# (especially important if other threads were configured by other scripts) 34pg_ctrl "reset" 35 36# Add remove all other devices and add_device $DEV to thread 0 37thread=0 38pg_thread $thread "rem_device_all" 39pg_thread $thread "add_device" $DEV 40 41# How many packets to send (zero means indefinitely) 42pg_set $DEV "count $COUNT" 43 44# Reduce alloc cost by sending same SKB many times 45# - this obviously affects the randomness within the packet 46pg_set $DEV "clone_skb $CLONE_SKB" 47 48# Set packet size 49pg_set $DEV "pkt_size $PKT_SIZE" 50 51# Delay between packets (zero means max speed) 52pg_set $DEV "delay $DELAY" 53 54# Flag example disabling timestamping 55pg_set $DEV "flag NO_TIMESTAMP" 56 57# Destination 58pg_set $DEV "dst_mac $DST_MAC" 59pg_set $DEV "dst$IP6 $DEST_IP" 60 61# Setup random UDP port src range 62pg_set $DEV "flag UDPSRC_RND" 63pg_set $DEV "udp_src_min $UDP_MIN" 64pg_set $DEV "udp_src_max $UDP_MAX" 65 66# start_run 67echo "Running... ctrl^C to stop" >&2 68pg_ctrl "start" 69echo "Done" >&2 70 71# Print results 72echo "Result device: $DEV" 73cat /proc/net/pktgen/$DEV 74