#!/bin/bash
#
# 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"

# Base Config
DELAY="0"        # Zero means max speed
COUNT="100000"   # Zero means indefinitely

# 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"

# 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
gs/clock/qcom,rpmcc.h?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings/clock/qcom,rpmcc.h?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/clock/qcom,rpmcc.h'>
<input type='hidden' name='id' value='9588397d24eecb7298bce9307b589a5bc0ccafdd'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>dt-bindings</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/clock?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>clock</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/clock/qcom,rpmcc.h?id=9588397d24eecb7298bce9307b589a5bc0ccafdd'>qcom,rpmcc.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/dt-bindings/clock/qcom,rpmcc.h?id=9588397d24eecb7298bce9307b589a5bc0ccafdd&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>