1*4882a593Smuzhiyun#!/bin/bash 2*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 3*4882a593Smuzhiyun# 4*4882a593Smuzhiyun# Simple example: 5*4882a593Smuzhiyun# * pktgen sending with single thread and single interface 6*4882a593Smuzhiyun# * flow variation via random UDP source port 7*4882a593Smuzhiyun# 8*4882a593Smuzhiyunbasedir=`dirname $0` 9*4882a593Smuzhiyunsource ${basedir}/functions.sh 10*4882a593Smuzhiyunroot_check_run_with_sudo "$@" 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun# Parameter parsing via include 13*4882a593Smuzhiyun# - go look in parameters.sh to see which setting are avail 14*4882a593Smuzhiyun# - required param is the interface "-i" stored in $DEV 15*4882a593Smuzhiyunsource ${basedir}/parameters.sh 16*4882a593Smuzhiyun# 17*4882a593Smuzhiyun# Set some default params, if they didn't get set 18*4882a593Smuzhiyunif [ -z "$DEST_IP" ]; then 19*4882a593Smuzhiyun [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" 20*4882a593Smuzhiyunfi 21*4882a593Smuzhiyun[ -z "$CLONE_SKB" ] && CLONE_SKB="0" 22*4882a593Smuzhiyun# Example enforce param "-m" for dst_mac 23*4882a593Smuzhiyun[ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" 24*4882a593Smuzhiyun[ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely 25*4882a593Smuzhiyunif [ -n "$DEST_IP" ]; then 26*4882a593Smuzhiyun validate_addr${IP6} $DEST_IP 27*4882a593Smuzhiyun read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) 28*4882a593Smuzhiyunfi 29*4882a593Smuzhiyunif [ -n "$DST_PORT" ]; then 30*4882a593Smuzhiyun read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) 31*4882a593Smuzhiyun validate_ports $UDP_DST_MIN $UDP_DST_MAX 32*4882a593Smuzhiyunfi 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun# Base Config 35*4882a593SmuzhiyunDELAY="0" # Zero means max speed 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun# Flow variation random source port between min and max 38*4882a593SmuzhiyunUDP_SRC_MIN=9 39*4882a593SmuzhiyunUDP_SRC_MAX=109 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun# General cleanup everything since last run 42*4882a593Smuzhiyun# (especially important if other threads were configured by other scripts) 43*4882a593Smuzhiyunpg_ctrl "reset" 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun# Add remove all other devices and add_device $DEV to thread 0 46*4882a593Smuzhiyunthread=0 47*4882a593Smuzhiyunpg_thread $thread "rem_device_all" 48*4882a593Smuzhiyunpg_thread $thread "add_device" $DEV 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun# How many packets to send (zero means indefinitely) 51*4882a593Smuzhiyunpg_set $DEV "count $COUNT" 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun# Reduce alloc cost by sending same SKB many times 54*4882a593Smuzhiyun# - this obviously affects the randomness within the packet 55*4882a593Smuzhiyunpg_set $DEV "clone_skb $CLONE_SKB" 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun# Set packet size 58*4882a593Smuzhiyunpg_set $DEV "pkt_size $PKT_SIZE" 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun# Delay between packets (zero means max speed) 61*4882a593Smuzhiyunpg_set $DEV "delay $DELAY" 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun# Flag example disabling timestamping 64*4882a593Smuzhiyunpg_set $DEV "flag NO_TIMESTAMP" 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun# Destination 67*4882a593Smuzhiyunpg_set $DEV "dst_mac $DST_MAC" 68*4882a593Smuzhiyunpg_set $DEV "dst${IP6}_min $DST_MIN" 69*4882a593Smuzhiyunpg_set $DEV "dst${IP6}_max $DST_MAX" 70*4882a593Smuzhiyun 71*4882a593Smuzhiyunif [ -n "$DST_PORT" ]; then 72*4882a593Smuzhiyun # Single destination port or random port range 73*4882a593Smuzhiyun pg_set $DEV "flag UDPDST_RND" 74*4882a593Smuzhiyun pg_set $DEV "udp_dst_min $UDP_DST_MIN" 75*4882a593Smuzhiyun pg_set $DEV "udp_dst_max $UDP_DST_MAX" 76*4882a593Smuzhiyunfi 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun# Setup random UDP port src range 79*4882a593Smuzhiyunpg_set $DEV "flag UDPSRC_RND" 80*4882a593Smuzhiyunpg_set $DEV "udp_src_min $UDP_SRC_MIN" 81*4882a593Smuzhiyunpg_set $DEV "udp_src_max $UDP_SRC_MAX" 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun# start_run 84*4882a593Smuzhiyunecho "Running... ctrl^C to stop" >&2 85*4882a593Smuzhiyunpg_ctrl "start" 86*4882a593Smuzhiyunecho "Done" >&2 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun# Print results 89*4882a593Smuzhiyunecho "Result device: $DEV" 90*4882a593Smuzhiyuncat /proc/net/pktgen/$DEV 91