Feats: Add Custom Iperf3 Server Option (#113)

* add geekbench v6 in main comments

* add iperf3 customs servers argument

* remove confusing comma in help message

yabs.sh

@@ -8,7 +8,7 @@
 #
 # Purpose:    The purpose of this script is to quickly gauge the performance of a Linux-
 #             based server by benchmarking network performance via iperf3, CPU and
-#             overall system performance via Geekbench 4/5, and random disk
+#             overall system performance via Geekbench 4/5/6, and random disk
 #             performance via fio. The script is designed to not require any dependencies
 #             - either compiled or installed - nor admin privileges to run.
 
@@ -59,11 +59,11 @@ else
 fi
 
 # flags to skip certain performance tests
-unset PREFER_BIN SKIP_FIO SKIP_IPERF SKIP_GEEKBENCH SKIP_NET PRINT_HELP REDUCE_NET GEEKBENCH_4 GEEKBENCH_5 GEEKBENCH_6 DD_FALLBACK IPERF_DL_FAIL JSON JSON_SEND JSON_RESULT JSON_FILE
+unset PREFER_BIN SKIP_FIO SKIP_IPERF SKIP_GEEKBENCH SKIP_NET PRINT_HELP REDUCE_NET GEEKBENCH_4 GEEKBENCH_5 GEEKBENCH_6 DD_FALLBACK IPERF_DL_FAIL JSON JSON_SEND JSON_RESULT JSON_FILE IPERF_SERVERS
 GEEKBENCH_6="True" # gb6 test enabled by default
 
 # get any arguments that were passed to the script and set the associated skip flags (if applicable)
-while getopts 'bfdignhr4596jw:s:' flag; do
+while getopts 'bfdignhr4596jw:s:p:' flag; do
 	case "${flag}" in
 		b) PREFER_BIN="True" ;;
 		f) SKIP_FIO="True" ;;
@@ -80,6 +80,7 @@ while getopts 'bfdignhr4596jw:s:' flag; do
 		j) JSON+="j" ;;
 		w) JSON+="w" && JSON_FILE=${OPTARG} ;;
 		s) JSON+="s" && JSON_SEND=${OPTARG} ;;
+		p) IPERF_SERVERS=${OPTARG} ;;
 		*) exit 1 ;;
 	esac
 done
@@ -148,6 +149,9 @@ if [ -n "$PRINT_HELP" ]; then
 	echo -e "       -j : print jsonified YABS results at conclusion of test"
 	echo -e "       -w <filename> : write jsonified YABS results to disk using file name provided"
 	echo -e "       -s <url> : send jsonified YABS results to URL"
+	echo -e "       -p <servers> : specify custom iperf servers (format: host:port_range:name:location:network_modes)"
+	echo -e "                      multiple servers separated by commas"
+	echo -e "                      example: -p \"example.com:5201-5210:MyServer:New York (10G):IPv4|IPv6\""
 	echo -e
 	echo -e "Detected Arch: $ARCH"
 	echo -e
@@ -161,6 +165,7 @@ if [ -n "$PRINT_HELP" ]; then
 	[[ -n $GEEKBENCH_4 ]] && echo -e "       running geekbench 4"
 	[[ -n $GEEKBENCH_5 ]] && echo -e "       running geekbench 5"
 	[[ -n $GEEKBENCH_6 ]] && echo -e "       running geekbench 6"
+	[[ -n $IPERF_SERVERS ]] && echo -e "       -p, using custom iperf servers: $IPERF_SERVERS"
 	echo -e
 	echo -e "Local Binary Check:"
 	([[ -z $LOCAL_FIO ]] && echo -e "       fio not detected, will download precompiled binary") ||
@@ -897,6 +902,24 @@ if [ -z "$SKIP_IPERF" ]; then
 		)
 	fi
 
+	# if custom iperf servers are provided, use them instead of the default servers
+	if [ -n "$IPERF_SERVERS" ]; then
+		# clear the default iperf locations array
+		IPERF_LOCS=()
+
+		# parse the custom iperf servers and add them to the array
+		IFS=',' read -ra CUSTOM_SERVERS <<< "$IPERF_SERVERS"
+		for server in "${CUSTOM_SERVERS[@]}"; do
+			# parse server definition: host:port_range:name:location:network_modes
+			IFS=':' read -ra SERVER_PARTS <<< "$server"
+			if [ ${#SERVER_PARTS[@]} -eq 5 ]; then
+				IPERF_LOCS+=("${SERVER_PARTS[0]}" "${SERVER_PARTS[1]}" "${SERVER_PARTS[2]}" "${SERVER_PARTS[3]}" "${SERVER_PARTS[4]}")
+			else
+				echo -e "Invalid server format: $server (expected format: host:port_range:name:location:network_modes)"
+			fi
+		done
+	fi
+
 	# get the total number of iperf locations (total array size divided by 5 since each location has 5 elements)
 	IPERF_LOCS_NUM=${#IPERF_LOCS[@]}
 	IPERF_LOCS_NUM=$((IPERF_LOCS_NUM / 5))
@@ -914,7 +937,7 @@ if [ -z "$SKIP_IPERF" ]; then
 fi
 
 # launch_geekbench
-# Purpose: This method is designed to run the Primate Labs' Geekbench 4/5 Cross-Platform Benchmark utility
+# Purpose: This method is designed to run the Primate Labs' Geekbench 4/5/6 Cross-Platform Benchmark utility
 # Parameters:
 #          1. VERSION - indicates which Geekbench version to run
 function launch_geekbench {