mirror of
https://github.com/Telecominfraproject/wlan-lanforge-scripts.git
synced 2025-11-03 20:27:54 +00:00
115 lines
2.5 KiB
Bash
Executable File
115 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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## ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ##
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## Ping a random ip every second, indefinitely. The ping command
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## has a deadline of *count* seconds and wait time of 1 second.
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## This script is aware of vrf_exec.bash and LF_NO_USE_VRF.
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##
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## Example Usage:
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##
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## Ping a random ip once from port br0 every second:
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## ./rping.bash -p br0 -c 1
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##
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## Default to eth1, ping 4 random IPs, ping each ip 10 times
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## ./rping.bash -r 4 -c 10
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##
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## Ping 4 random IPs, ping each ip 10 times, from port br1
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## ./rping.bash -r 4 -c 10 -pbr1
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##
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## ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ##
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# set -vux
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HL="/home/lanforge"
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HL_VX="$HL/vrf_exec.bash"
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UV=1
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if [ -f $HL/LF_NO_USE_VRF ]; then
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UV=0
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fi
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if [ ! -x $HL_VX ]; then
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UV=0
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fi
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usage() {
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echo "Usage: $0 [-p port] [-c count of pings per ip] [-r number random ips] [-d seconds duration]"
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}
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PORT=eth1
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COUNT=1
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NUM_IP=0
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DURATION=0
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while getopts "hi:c:d:p:" OPT; do
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case "${OPT}" in
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c) COUNT="${OPTARG}"
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;;
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d) DURATION="${OPTARG}"
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if (( $DURATION < 0 )); then
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echo "$0: duration cannot be negative"
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exit 1
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fi
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;;
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h) usage
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exit 0
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;;
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i) NUM_IP="${OPTARG}"
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;;
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p) PORT="${OPTARG}"
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;;
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*) echo "Unknown option $OPT";
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usage
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exit 1
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;;
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esac
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done
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if [[ x$PORT == x ]]; then
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echo "$0: no port" >&2
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return 1
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fi
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# this is unfiltered and will ping network numbers, broadcast numbers and
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# multicast addresses, if you need a specific range, you should add that
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# logic near here
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rand_ip() {
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printf "%d.%d.%d.%d" \
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"$((RANDOM % 256))" \
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"$((RANDOM % 256))" \
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"$((RANDOM % 256))" \
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"$((RANDOM % 256))"
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}
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my_ping() {
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if [[ x$1 == x ]]; then
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echo "$0: my_ping: cannot ping empty ip" >&2
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return 1
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fi
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if (($UV == 1)); then
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$HL_VX $PORT ping -c $COUNT -D -i1 -n -w$COUNT -W1 "$1"
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else
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ping -I$PORT -c $COUNT -D -i1 -n -w$COUNT -W1 "$1"
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fi
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}
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IP_LIST=()
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if (( NUM_IP != 0 )); then
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for n in `seq 1 $NUM_IP`; do
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IP_LIST+=($(rand_ip))
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done
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fi
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counter=0;
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mod=$NUM_IP
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while true; do
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if (( $NUM_IP > 0 )); then
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i=$(($counter % $NUM_IP))
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randi="${IP_LIST[$i]}"
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counter=$((counter++))
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else
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randi=$(rand_ip)
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fi
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my_ping "$randi"
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sleep 1
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done
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#
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