samples/pktgen/pktgen_sample01_simple.sh

   1 #!/bin/bash
   2 #
   3 # Simple example:
   4 #  * pktgen sending with single thread and single interface
   5 #  * flow variation via random UDP source port
   6 #
   7 basedir=`dirname $0`
   8 source ${basedir}/functions.sh
   9 root_check_run_with_sudo "$@"
  10
  11 # Parameter parsing via include
  12 # - go look in parameters.sh to see which setting are avail
  13 # - required param is the interface "-i" stored in $DEV
  14 source ${basedir}/parameters.sh
  15 #
  16 # Set some default params, if they didn't get set
  17 if [ -z "$DEST_IP" ]; then
  18     [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
  19 fi
  20 [ -z "$CLONE_SKB" ] && CLONE_SKB="0"
  21 # Example enforce param "-m" for dst_mac
  22 [ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac"
  23
  24 # Base Config
  25 DELAY="0"        # Zero means max speed
  26 COUNT="100000"   # Zero means indefinitely
  27
  28 # Flow variation random source port between min and max
  29 UDP_MIN=9
  30 UDP_MAX=109
  31
  32 # General cleanup everything since last run
  33 # (especially important if other threads were configured by other scripts)
  34 pg_ctrl "reset"
  35
  36 # Add remove all other devices and add_device $DEV to thread 0
  37 thread=0
  38 pg_thread $thread "rem_device_all"
  39 pg_thread $thread "add_device" $DEV
  40
  41 # How many packets to send (zero means indefinitely)
  42 pg_set $DEV "count $COUNT"
  43
  44 # Reduce alloc cost by sending same SKB many times
  45 # - this obviously affects the randomness within the packet
  46 pg_set $DEV "clone_skb $CLONE_SKB"
  47
  48 # Set packet size
  49 pg_set $DEV "pkt_size $PKT_SIZE"
  50
  51 # Delay between packets (zero means max speed)
  52 pg_set $DEV "delay $DELAY"
  53
  54 # Flag example disabling timestamping
  55 pg_set $DEV "flag NO_TIMESTAMP"
  56
  57 # Destination
  58 pg_set $DEV "dst_mac $DST_MAC"
  59 pg_set $DEV "dst$IP6 $DEST_IP"
  60
  61 # Setup random UDP port src range
  62 pg_set $DEV "flag UDPSRC_RND"
  63 pg_set $DEV "udp_src_min $UDP_MIN"
  64 pg_set $DEV "udp_src_max $UDP_MAX"
  65
  66 # start_run
  67 echo "Running... ctrl^C to stop" >&2
  68 pg_ctrl "start"
  69 echo "Done" >&2
  70
  71 # Print results
  72 echo "Result device: $DEV"
  73 cat /proc/net/pktgen/$DEV