1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# Simple example: 5# * pktgen sending with single thread and single interface 6# * flow variation via random UDP source port 7# 8basedir=`dirname $0` 9source ${basedir}/functions.sh 10root_check_run_with_sudo "$@" 11 12# Parameter parsing via include 13# - go look in parameters.sh to see which setting are avail 14# - required param is the interface "-i" stored in $DEV 15source ${basedir}/parameters.sh 16# 17# Set some default params, if they didn't get set 18if [ -z "$DEST_IP" ]; then 19 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 20fi 21[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 22# Example enforce param "-m" for dst_mac 23[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" 24[ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely 25 26# Base Config 27DELAY="0" # Zero means max speed 28 29# Flow variation random source port between min and max 30UDP_MIN=9 31UDP_MAX=109 32 33# General cleanup everything since last run 34# (especially important if other threads were configured by other scripts) 35pg_ctrl "reset" 36 37# Add remove all other devices and add_device $DEV to thread 0 38thread=0 39pg_thread $thread "rem_device_all" 40pg_thread $thread "add_device" $DEV 41 42# How many packets to send (zero means indefinitely) 43pg_set $DEV "count $COUNT" 44 45# Reduce alloc cost by sending same SKB many times 46# - this obviously affects the randomness within the packet 47pg_set $DEV "clone_skb $CLONE_SKB" 48 49# Set packet size 50pg_set $DEV "pkt_size $PKT_SIZE" 51 52# Delay between packets (zero means max speed) 53pg_set $DEV "delay $DELAY" 54 55# Flag example disabling timestamping 56pg_set $DEV "flag NO_TIMESTAMP" 57 58# Destination 59pg_set $DEV "dst_mac $DST_MAC" 60pg_set $DEV "dst$IP6 $DEST_IP" 61 62# Setup random UDP port src range 63pg_set $DEV "flag UDPSRC_RND" 64pg_set $DEV "udp_src_min $UDP_MIN" 65pg_set $DEV "udp_src_max $UDP_MAX" 66 67# start_run 68echo "Running... ctrl^C to stop" >&2 69pg_ctrl "start" 70echo "Done" >&2 71 72# Print results 73echo "Result device: $DEV" 74cat /proc/net/pktgen/$DEV 75