#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # 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 ${basedir}/parameters.sh
# Trap EXIT first
trap_exit
# # Set some default params, if they didn't get set if [ -z "$DEST_IP" ]; then
[ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" fi
[ -z "$CLONE_SKB" ] && CLONE_SKB="0" # Example enforce param "-m" for dst_mac
[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac"
[ -z "$COUNT" ] && COUNT="100000"# Zero means indefinitely if [ -n "$DEST_IP" ]; then
validate_addr${IP6} $DEST_IP
read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) fi if [ -n "$DST_PORT" ]; then
read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
validate_ports $UDP_DST_MIN $UDP_DST_MAX fi
# Flow variation random source port between min and max
UDP_SRC_MIN=9
UDP_SRC_MAX=109
# General cleanup everything since last run # (especially important if other threads were configured by other scripts)
[ -z "$APPEND" ] && pg_ctrl "reset"
# Add remove all other devices and add_device $DEV to thread 0
thread=0
[ -z "$APPEND" ] && 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 $DEV "flag NO_TIMESTAMP"
if [ -n "$DST_PORT" ]; then # Single destination port or random port range
pg_set $DEV "flag UDPDST_RND"
pg_set $DEV "udp_dst_min $UDP_DST_MIN"
pg_set $DEV "udp_dst_max $UDP_DST_MAX" fi
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