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_bench_xmit_mode_queue_xmit.sh (2563B)

      1#!/bin/bash
      2# SPDX-License-Identifier: GPL-2.0
      3#
      4# Benchmark script:
      5#  - developed for benchmarking egress qdisc path, derived (more
      6#    like cut'n'pasted) from ingress benchmark script.
      7#
      8# Script for injecting packets into egress qdisc path of the stack
      9# with pktgen "xmit_mode queue_xmit".
     10#
     11basedir=`dirname $0`
     12source ${basedir}/functions.sh
     13root_check_run_with_sudo "$@"
     14
     15# Parameter parsing via include
     16source ${basedir}/parameters.sh
     17if [ -z "$DEST_IP" ]; then
     18    [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
     19fi
     20[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
     21
     22# Burst greater than 1 are invalid for queue_xmit mode
     23if [[ -n "$BURST" ]]; then
     24    err 1 "Bursting not supported for this mode"
     25fi
     26[ -z "$COUNT" ] && COUNT="10000000" # 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
     37pg_ctrl "reset"
     38
     39# Threads are specified with parameter -t value in $THREADS
     40for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
     41    # The device name is extended with @name, using thread number to
     42    # make then unique, but any name will do.
     43    dev=${DEV}@${thread}
     44
     45    # Add remove all other devices and add_device $dev to thread
     46    pg_thread $thread "rem_device_all"
     47    pg_thread $thread "add_device" $dev
     48
     49    # Base config of dev
     50    pg_set $dev "flag QUEUE_MAP_CPU"
     51    pg_set $dev "count $COUNT"
     52    pg_set $dev "pkt_size $PKT_SIZE"
     53    pg_set $dev "delay $DELAY"
     54    pg_set $dev "flag NO_TIMESTAMP"
     55
     56    # Destination
     57    pg_set $dev "dst_mac $DST_MAC"
     58    pg_set $dev "dst${IP6}_min $DST_MIN"
     59    pg_set $dev "dst${IP6}_max $DST_MAX"
     60
     61    if [ -n "$DST_PORT" ]; then
     62	# Single destination port or random port range
     63	pg_set $dev "flag UDPDST_RND"
     64	pg_set $dev "udp_dst_min $UDP_DST_MIN"
     65	pg_set $dev "udp_dst_max $UDP_DST_MAX"
     66    fi
     67
     68    # Inject packet into TX qdisc egress path of stack
     69    pg_set $dev "xmit_mode queue_xmit"
     70done
     71
     72# Run if user hits control-c
     73function print_result {
     74    # Print results
     75    for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
     76        dev=${DEV}@${thread}
     77        echo "Device: $dev"
     78        cat /proc/net/pktgen/$dev | grep -A2 "Result:"
     79    done
     80}
     81# trap keyboard interrupt (Ctrl-C)
     82trap true SIGINT
     83
     84# start_run
     85echo "Running... ctrl^C to stop" >&2
     86pg_ctrl "start"
     87echo "Done" >&2
     88
     89print_result