| #!/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 ${basedir}/parameters.sh |
| # |
| # Set some default params, if they didn't get set |
| if [ -z "$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 "$DST_PORT" ]; then |
| read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) |
| validate_ports $DST_MIN $DST_MAX |
| fi |
| |
| # Base Config |
| DELAY="0" # Zero means max speed |
| |
| # Flow variation random source port between min and max |
| UDP_MIN=9 |
| UDP_MAX=109 |
| |
| # General cleanup everything since last run |
| # (especially important if other threads were configured by other scripts) |
| pg_ctrl "reset" |
| |
| # Add remove all other devices and add_device $DEV to thread 0 |
| thread=0 |
| 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" |
| |
| # Destination |
| pg_set $DEV "dst_mac $DST_MAC" |
| pg_set $DEV "dst$IP6 $DEST_IP" |
| |
| if [ -n "$DST_PORT" ]; then |
| # Single destination port or random port range |
| pg_set $DEV "flag UDPDST_RND" |
| pg_set $DEV "udp_dst_min $DST_MIN" |
| pg_set $DEV "udp_dst_max $DST_MAX" |
| fi |
| |
| # Setup random UDP port src range |
| pg_set $DEV "flag UDPSRC_RND" |
| pg_set $DEV "udp_src_min $UDP_MIN" |
| pg_set $DEV "udp_src_max $UDP_MAX" |
| |
| # start_run |
| echo "Running... ctrl^C to stop" >&2 |
| pg_ctrl "start" |
| echo "Done" >&2 |
| |
| # Print results |
| echo "Result device: $DEV" |
| cat /proc/net/pktgen/$DEV |