cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pktgen_sample05_flow_per_thread.sh (3096B)

      1#!/bin/bash
      2# SPDX-License-Identifier: GPL-2.0
      3#
      4# Script will generate one flow per thread (-t N)
      5#  - Same destination IP
      6#  - Fake source IPs for each flow (fixed based on thread number)
      7#
      8# Useful for scale testing on receiver, to see whether silo'ing flows
      9# works and scales.  For optimal scalability (on receiver) each
     10# separate-flow should not access shared variables/data. This script
     11# helps magnify any of these scaling issues by overloading the receiver.
     12#
     13basedir=`dirname $0`
     14source ${basedir}/functions.sh
     15root_check_run_with_sudo "$@"
     16
     17# Parameter parsing via include
     18source ${basedir}/parameters.sh
     19# Set some default params, if they didn't get set
     20if [ -z "$DEST_IP" ]; then
     21    [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
     22fi
     23[ -z "$DST_MAC" ]   && DST_MAC="90:e2:ba:ff:ff:ff"
     24[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
     25[ -z "$BURST" ]     && BURST=32
     26[ -z "$COUNT" ]     && COUNT="0" # Zero means indefinitely
     27if [ -n "$DEST_IP" ]; then
     28    validate_addr${IP6} $DEST_IP
     29    read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP)
     30fi
     31if [ -n "$DST_PORT" ]; then
     32    read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
     33    validate_ports $UDP_DST_MIN $UDP_DST_MAX
     34fi
     35
     36# General cleanup everything since last run
     37[ -z "$APPEND" ] && pg_ctrl "reset"
     38
     39# Threads are specified with parameter -t value in $THREADS
     40for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
     41    dev=${DEV}@${thread}
     42
     43    # Add remove all other devices and add_device $dev to thread
     44    [ -z "$APPEND" ] && pg_thread $thread "rem_device_all"
     45    pg_thread $thread "add_device" $dev
     46
     47    # Base config
     48    pg_set $dev "flag QUEUE_MAP_CPU"
     49    pg_set $dev "count $COUNT"
     50    pg_set $dev "clone_skb $CLONE_SKB"
     51    pg_set $dev "pkt_size $PKT_SIZE"
     52    pg_set $dev "delay $DELAY"
     53    pg_set $dev "flag NO_TIMESTAMP"
     54
     55    # Single destination
     56    pg_set $dev "dst_mac $DST_MAC"
     57    pg_set $dev "dst${IP6}_min $DST_MIN"
     58    pg_set $dev "dst${IP6}_max $DST_MAX"
     59
     60    if [ -n "$DST_PORT" ]; then
     61	# Single destination port or random port range
     62	pg_set $dev "flag UDPDST_RND"
     63	pg_set $dev "udp_dst_min $UDP_DST_MIN"
     64	pg_set $dev "udp_dst_max $UDP_DST_MAX"
     65    fi
     66
     67    [ ! -z "$UDP_CSUM" ] && pg_set $dev "flag UDPCSUM"
     68
     69    # Setup source IP-addresses based on thread number
     70    pg_set $dev "src_min 198.18.$((thread+1)).1"
     71    pg_set $dev "src_max 198.18.$((thread+1)).1"
     72
     73    # Setup burst, for easy testing -b 0 disable bursting
     74    # (internally in pktgen default and minimum burst=1)
     75    if [[ ${BURST} -ne 0 ]]; then
     76	pg_set $dev "burst $BURST"
     77    else
     78	info "$dev: Not using burst"
     79    fi
     80
     81done
     82
     83# Run if user hits control-c
     84function print_result() {
     85    # Print results
     86    for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
     87	dev=${DEV}@${thread}
     88	echo "Device: $dev"
     89	cat /proc/net/pktgen/$dev | grep -A2 "Result:"
     90    done
     91}
     92# trap keyboard interrupt (Ctrl-C)
     93trap true SIGINT
     94
     95if [ -z "$APPEND" ]; then
     96    echo "Running... ctrl^C to stop" >&2
     97    pg_ctrl "start"
     98
     99    print_result
    100else
    101    echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"
    102fi