From 6f09479758be247fef02188a275383ebaddbe291 Mon Sep 17 00:00:00 2001 From: Jesper Dangaard Brouer Date: Thu, 21 May 2015 12:17:33 +0200 Subject: pktgen: add sample script pktgen_sample01_simple.sh Add the first basic pktgen samples script pktgen_sample01_simple.sh, which demonstrates the a simple use of the helper functions. Removing pktgen.conf-1-1 as that example should be covered now. The naming scheme pktgen_sampleNN, where NN is a number, should encourage reading the samples in a specific order. Script cause pktgen sending with a single thread and single interface, and introduce flow variation via random UDP source port. Usage example and help: ./pktgen_sample01_simple.sh -i eth4 -m 00:1B:21:3C:9D:F8 -d 192.168.8.2 Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX -i : ($DEV) output interface/device (required) -s : ($PKT_SIZE) packet size -d : ($DEST_IP) destination IP -m : ($DST_MAC) destination MAC-addr -c : ($SKB_CLONE) SKB clones send before alloc new SKB -v : ($VERBOSE) verbose -x : ($DEBUG) debug Signed-off-by: Jesper Dangaard Brouer Signed-off-by: David S. Miller --- samples/pktgen/pktgen_sample01_simple.sh | 71 ++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100755 samples/pktgen/pktgen_sample01_simple.sh (limited to 'samples/pktgen/pktgen_sample01_simple.sh') diff --git a/samples/pktgen/pktgen_sample01_simple.sh b/samples/pktgen/pktgen_sample01_simple.sh new file mode 100755 index 000000000000..8c9d318c221b --- /dev/null +++ b/samples/pktgen/pktgen_sample01_simple.sh @@ -0,0 +1,71 @@ +#!/bin/bash +# +# Simple example: +# * pktgen sending with single thread and single interface +# * flow variation via random UDP source port +# +basedir=`dirname $0` +source ${basedir}/functions.sh +root_check_run_with_sudo "$@" + +# Parameter parsing via include +# - go look in parameters.sh to see which setting are avail +# - required param is the interface "-i" stored in $DEV +source ${basedir}/parameters.sh +# +# Set some default params, if they didn't get set +[ -z "$DEST_IP" ] && DEST_IP="198.18.0.42" +[ -z "$CLONE_SKB" ] && CLONE_SKB="0" +# Example enforce param "-m" for dst_mac +[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" + +# Base Config +DELAY="0" # Zero means max speed +COUNT="100000" # Zero means indefinitely + +# Flow variation random source port between min and max +UDP_MIN=9 +UDP_MAX=109 + +# General cleanup everything since last run +# (especially important if other threads were configured by other scripts) +pg_ctrl "reset" + +# Add remove all other devices and add_device $DEV to thread 0 +thread=0 +pg_thread $thread "rem_device_all" +pg_thread $thread "add_device" $DEV + +# How many packets to send (zero means indefinitely) +pg_set $DEV "count $COUNT" + +# Reduce alloc cost by sending same SKB many times +# - this obviously affects the randomness within the packet +pg_set $DEV "clone_skb $CLONE_SKB" + +# Set packet size +pg_set $DEV "pkt_size $PKT_SIZE" + +# Delay between packets (zero means max speed) +pg_set $DEV "delay $DELAY" + +# Flag example disabling timestamping +pg_set $DEV "flag NO_TIMESTAMP" + +# Destination +pg_set $DEV "dst_mac $DST_MAC" +pg_set $DEV "dst $DEST_IP" + +# Setup random UDP port src range +pg_set $DEV "flag UDPSRC_RND" +pg_set $DEV "udp_src_min $UDP_MIN" +pg_set $DEV "udp_src_max $UDP_MAX" + +# start_run +echo "Running... ctrl^C to stop" >&2 +pg_ctrl "start" +echo "Done" >&2 + +# Print results +echo "Result device: $DEV" +cat /proc/net/pktgen/$DEV -- cgit v1.2.3