123 lines · bash
1#!/bin/bash2# SPDX-License-Identifier: GPL-2.03#4# Script example for many flows testing5#6# Number of simultaneous flows limited by variable $FLOWS7# and number of packets per flow controlled by variable $FLOWLEN8#9basedir=`dirname $0`10source ${basedir}/functions.sh11root_check_run_with_sudo "$@"12 13# Parameter parsing via include14source ${basedir}/parameters.sh15 16# Trap EXIT first17trap_exit18 19# Set some default params, if they didn't get set20if [ -z "$DEST_IP" ]; then21 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"22fi23[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"24[ -z "$CLONE_SKB" ] && CLONE_SKB="0"25[ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely26if [ -n "$DEST_IP" ]; then27 validate_addr${IP6} $DEST_IP28 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP)29fi30if [ -n "$DST_PORT" ]; then31 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)32 validate_ports $UDP_DST_MIN $UDP_DST_MAX33fi34 35# NOTICE: Script specific settings36# =======37# Limiting the number of concurrent flows ($FLOWS)38# and also set how many packets each flow contains ($FLOWLEN)39#40[ -z "$FLOWS" ] && FLOWS="8000"41[ -z "$FLOWLEN" ] && FLOWLEN="10"42 43if [[ -n "$BURST" ]]; then44 err 1 "Bursting not supported for this mode"45fi46 47# 198.18.0.0 / 198.19.255.25548read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15)49 50# General cleanup everything since last run51[ -z "$APPEND" ] && pg_ctrl "reset"52 53# Threads are specified with parameter -t value in $THREADS54for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do55 dev=${DEV}@${thread}56 57 # Add remove all other devices and add_device $dev to thread58 [ -z "$APPEND" ] && pg_thread $thread "rem_device_all"59 pg_thread $thread "add_device" $dev60 61 # Base config62 pg_set $dev "flag QUEUE_MAP_CPU"63 pg_set $dev "count $COUNT"64 pg_set $dev "clone_skb $CLONE_SKB"65 pg_set $dev "pkt_size $PKT_SIZE"66 pg_set $dev "delay $DELAY"67 pg_set $dev "flag NO_TIMESTAMP"68 69 # Single destination70 pg_set $dev "dst_mac $DST_MAC"71 pg_set $dev "dst${IP6}_min $DST_MIN"72 pg_set $dev "dst${IP6}_max $DST_MAX"73 74 if [ -n "$DST_PORT" ]; then75 # Single destination port or random port range76 pg_set $dev "flag UDPDST_RND"77 pg_set $dev "udp_dst_min $UDP_DST_MIN"78 pg_set $dev "udp_dst_max $UDP_DST_MAX"79 fi80 81 [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM"82 83 # Randomize source IP-addresses84 pg_set $dev "flag IPSRC_RND"85 pg_set $dev "src_min $SRC_MIN"86 pg_set $dev "src_max $SRC_MAX"87 88 # Limit number of flows (max 65535)89 pg_set $dev "flows $FLOWS"90 #91 # How many packets a flow will send, before flow "entry" is92 # re-generated/setup.93 pg_set $dev "flowlen $FLOWLEN"94 #95 # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow96 # being send back-to-back, before next flow is selected97 # incrementally. This helps lookup caches, and is more realistic.98 #99 pg_set $dev "flag FLOW_SEQ"100 101done102 103# Run if user hits control-c104function print_result() {105 # Print results106 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do107 dev=${DEV}@${thread}108 echo "Device: $dev"109 cat /proc/net/pktgen/$dev | grep -A2 "Result:"110 done111}112# trap keyboard interrupt (Ctrl-C)113trap true SIGINT114 115if [ -z "$APPEND" ]; then116 echo "Running... ctrl^C to stop" >&2117 pg_ctrl "start"118 119 print_result120else121 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"122fi123