add scripts for Blatt01 and Notes

Blatt01/scripts/checkip.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+show_ip(){
+	local output=$1
+	ips=()
+	interfaces=()
+	# echo $output
+	while read -r line; do
+		ip=$(echo "$line" | awk '{print $2}' | cut -d'/' -f1)
+		interface=$(echo "$line" | awk '{print $5}')
+		ips+=("$ip")
+		interfaces+=("$interface")
+	done <<< "$output"
+	for i in "${!ips[@]}"; do
+		echo "${ips[i]} ${interfaces[i]}"
+	done
+
+}
+
+filename="output/output_$(date +'%m-%d_%H-%M-%S').txt"
+echo $(date +'%m-%d_%H-%M-%S') 
+echo ' ' > $filename
+
+ip_cmd='ip address show | grep 10.5'
+for num in {1..4}
+do
+	echo "router$num" >> $filename
+	echo "router$num" 
+	ip_output=$(ssh router$num $ip_cmd) 
+	ips=()
+	interfaces=()
+
+	result=$(show_ip "$ip_output")
+	echo $result
+	echo $result >> $filename
+
+	
+done
+
+for num in {1..3}
+do
+	echo "pc$num" >> $filename
+	echo "pc$num" 
+	pc_result=$(ssh pc$num $ip_cmd)
+	result=$(show_ip "$pc_result")
+	echo $result >> $filename
+	echo $result
+done
+

Blatt01/scripts/testpc.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+
+show_ip(){
+	local output=$1
+	ips=()
+	interfaces=()
+	echo $output
+	while read -r line; do
+		ip=$(echo "$line" | awk '{print $2}' | cut -d'/' -f1)
+		interface=$(echo "$line" | awk '{print $5}')
+		ips+=("$ip")
+		interfaces+=("$interface")
+	done <<< "$output"
+	for i in "${!ips[@]}"; do
+		echo "${ips[i]} ${interfaces[i]}"
+	done
+
+}
+
+ip_cmd='ip address show | grep 10.5'
+sender_ip='10.5.1.1/24'
+rec_ip='10.5.1.2/24'
+rec_ip_no_code='10.5.1.2'
+senders=()
+recs=()
+sender_eths=()
+rec_eths=()
+losses=()
+
+sender_type="${1:-router}"
+receiver_type="${2:-router}"
+if [ "$sender_type" = "router" ]; then
+	sender_ub=4
+else
+	sender_ub=3
+fi
+if [ "$receiver_type" = "router" ]; then
+	rec_ub=4
+else
+	rec_ub=3
+fi
+for sender in $(seq 1 $sender_ub);
+do
+	sender_eth_nums=$(ssh $sender_type$sender "ip address show" | grep -c '^.*eth[0-9]:')
+	sender_eth_nums=$(($sender_eth_nums-1))
+	echo "$sender_type$sender has $sender_eth_nums eths"
+	for sender_eth_num in $(seq 1 $sender_eth_nums);
+	do
+		# turn on the device
+		ssh $sender_type$sender "ip link set dev eth$sender_eth_num up"
+		ssh $sender_type$sender "ip address add $sender_ip dev eth$sender_eth_num"
+		# for receiver in {1..4}
+		for receiver in $(seq 1 $rec_ub);
+		do
+			receiver_eth_nums=$(ssh $receiver_type$receiver "ip address show" | grep -c '^.*eth[0-9]:')
+			receiver_eth_nums=$(($receiver_eth_nums-1))
+			echo "$receiver_type$receiver has $receiver_eth_nums eths"
+			if [ "$sender_type" = "$receiver_type" ]; then
+				if [ "$sender" -eq "$receiver" ]; then
+					continue
+				fi
+			fi
+			for receiver_eth_num in $(seq 1 $receiver_eth_nums);
+			do
+				ssh $receiver_type$receiver "ip link set dev eth$receiver_eth_num up"
+				ssh $receiver_type$receiver "ip address add $rec_ip dev eth$receiver_eth_num"
+				echo "sen $sender_type$sender eth$sender_eth_num ip $sender_ip"
+				echo "rec $receiver_type$receiver eth$receiver_eth_num ip $rec_ip"
+				ip_output=$(ssh $sender_type$sender $ip_cmd)
+				result=$(show_ip "$ip_output")
+				echo $result
+
+				# test loss
+				loss=$(ssh $sender_type$sender "ping -c 5 -W 2 -I eth$sender_eth_num $rec_ip_no_code | awk -F', ' '/packet loss/ {print \$3}' | awk '{print int(\$1)}'")
+				echo $loss
+				if [ "$loss" -ne 100 ]; then
+					senders+=("$sender")
+					recs+=("$receiver")
+					sender_eths+=("$sender_eth_num")
+					rec_eths+=("$receiver_eth_num")
+					losses+=("$loss")
+				fi
+
+
+				ssh $receiver_type$receiver "ip address del 10.5.1.2/24 dev eth$receiver_eth_num"
+			done
+		done
+		ssh $sender_type$sender "ip address del 10.5.1.1/24 dev eth$sender_eth_num"
+	done
+done
+
+echo "results"
+
+printf "%-10s %-15s %-12s %-15s %-10s\n" "sender #" "sender eth #" "receiver #" "receiver eth #" "losses #"
+for i in "${!senders[@]}"; do
+    printf "%-10s %-15s %-12s %-15s %-10s\n" "${senders[i]}" "${sender_eths[i]}" "${recs[i]}" "${rec_eths[i]}" "${losses[i]}"
+done
+
+# printf "sender #\t sender eth #\t receiver # \t receiver eth # \t losses # \t\n"
+# for i in "${!senders[@]}"; do
+#  	printf "%s\t%s\t%s\t%s\t%s\n" "${senders[i]}" "${sender_eths[i]}" "${recs[i]}" "${rec_eths[i]}" "${losses[i]}"
+# done
+