From af58c35317a8867cd86d6737160f3b579989cbe1 Mon Sep 17 00:00:00 2001
From: Jed Reynolds <jreynolds@candelatech.com>
Date: Tue, 18 Dec 2018 17:06:20 -0800
Subject: [PATCH] adds script to recreate L4 connections at random speeds

---
 lf_l4_random_speeds.bash | 83 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100755 lf_l4_random_speeds.bash

diff --git a/lf_l4_random_speeds.bash b/lf_l4_random_speeds.bash
new file mode 100755
index 00000000..9251a16c
--- /dev/null
+++ b/lf_l4_random_speeds.bash
@@ -0,0 +1,83 @@
+#!/bin/bash
+
+mgr="idtest"
+url="http://10.41.0.2/random.txt"
+endp_list=("tg1" "tg2")
+resource=8
+pause_sec=15
+max_speed=1000000000
+
+
+proxyport=NA
+con_timeout=1000
+url_rate=6000
+url="dl $url /dev/null"
+proxy_svr=NA
+proxy_creds=NA
+ssl_cert_fname=NA
+user_agent=NA
+# set proxy_auth_type=64 to enable gzip
+proxy_auth_type=0
+http_auth_type=0
+dns_cache_timeout=0
+tftp_block_sz=NA
+smtpfm=NA
+sec_ip=NA
+
+function create_l4_endp() {
+    echo -n " $endp"
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+    "set_cx_state default_tm CX_$endp STOPPED" >/dev/null
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+    "add_l4_endp $endp 1 $resource b8000 l4_generic $proxyport $con_timeout $url_rate '$url' $proxy_svr $proxy_creds $ssl_cert_fname $user_agent $proxy_auth_type $http_auth_type $dns_cache_timeout $new_speed $tftp_block_sz $smtpfm $sec_ip" >/dev/null
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+    "add_cx CX_$endp default_tm $endp NA" >/dev/null
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+    "set_endp_report_timer $endp 1000" >/dev/null
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+    "set_cx_report_timer $endp 1000" >/dev/null
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+    "set_cx_state default_tm CX_$endp RUNNING" >/dev/null
+}
+
+# the nc_show_endpoints flushes cached endpoint settings
+function ncshow() {
+    ./lf_firemod.pl --mgr $mgr --resource $resource --quiet yes --action do_cmd --cmd \
+        "nc_show_endpoints $endp" > /dev/null
+}
+
+
+##
+##  M A I N
+##
+echo "Now using random speeds lower than $max_speed... "
+# use a random fraction of maximum speed
+for i in `seq 1 10`; do
+    new_speed=`echo "scale=0; 100*$max_speed / $RANDOM" | bc -l`
+    new_speed=`echo "8500000 + $new_speed" | bc -l`
+    echo -n " $new_speed bps:"
+    for endp in ${endp_list[@]}; do
+        create_l4_endp       
+        ncshow
+    done
+    sleep $pause_sec
+done
+
+# method uses random modulus of list of speeds
+set_speeds=(7280000 12830000 43500000)
+echo ""
+echo "Using set of speeds: ${set_speeds[@]}... "
+for i in `seq 1 10`; do
+    j=`expr $RANDOM % ${#set_speeds[@]}`
+    new_speed=${set_speeds[$j]}
+    echo -n " $new_speed bps:"
+    for endp in ${endp_list[@]}; do
+        create_l4_endp
+        ncshow
+    done
+    sleep $pause_sec
+done
+sleep $pause_sec
+
+echo ""
+