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firewall.sh
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#!/bin/sh
#############################################################################################################
# #
# ███████╗██╗ ██╗██╗ ██╗███╗ ██╗███████╗████████╗ ██╗ ██╗███████╗ #
# ██╔════╝██║ ██╔╝╚██╗ ██╔╝████╗ ██║██╔════╝╚══██╔══╝ ██║ ██║╚════██║ #
# ███████╗█████╔╝ ╚████╔╝ ██╔██╗ ██║█████╗ ██║ ██║ ██║ ██╔╝ #
# ╚════██║██╔═██╗ ╚██╔╝ ██║╚██╗██║██╔══╝ ██║ ╚██╗ ██╔╝ ██╔╝ #
# ███████║██║ ██╗ ██║ ██║ ╚████║███████╗ ██║ ╚████╔╝ ██║ #
# ╚══════╝╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═══╝╚══════╝ ╚═╝ ╚═══╝ ╚═╝ #
# #
# Router Firewall And Security Enhancements #
# By Adamm - https://github.com/Adamm00/IPSet_ASUS #
# 17/08/2020 - v7.2.1 #
#############################################################################################################
export PATH=/sbin:/bin:/usr/sbin:/usr/bin:$PATH
printf '\033[?7l'
clear
sed -n '2,14p' "$0"
export LC_ALL=C
mkdir -p /tmp/skynet/lists
mkdir -p /jffs/addons/shared-whitelists
ntptimer="0"
while [ "$(nvram get ntp_ready)" = "0" ] && [ "$ntptimer" -lt "300" ] && ! echo "$1" | grep -qE "(uninstall|disable)"; do
ntptimer="$((ntptimer + 1))"
if [ "$ntptimer" = "60" ]; then echo; logger -st Skynet "[*] Waiting For NTP To Sync"; fi
sleep 1
done
if [ "$ntptimer" -ge "300" ]; then logger -st Skynet "[*] NTP Failed To Start After 5 Minutes - Please Fix Immediately!"; echo; exit 1; fi
skynetloc="$(grep -ow "skynetloc=.* # Skynet" /jffs/scripts/firewall-start 2>/dev/null | grep -vE "^#" | awk '{print $1}' | cut -c 11-)"
skynetcfg="${skynetloc}/skynet.cfg"
skynetlog="${skynetloc}/skynet.log"
skynetevents="${skynetloc}/events.log"
skynetipset="${skynetloc}/skynet.ipset"
stime="$(date +%s)"
if [ -z "${skynetloc}" ] && tty >/dev/null 2>&1; then
set "install"
fi
###############
#- Functions -#
###############
Kill_Lock() {
if [ -f "/tmp/skynet.lock" ] && [ -d "/proc/$(sed -n '2p' /tmp/skynet.lock)" ]; then
logger -st Skynet "[*] Killing Locked Processes ($(sed -n '1p' /tmp/skynet.lock)) (pid=$(sed -n '2p' /tmp/skynet.lock))"
logger -st Skynet "[*] $(ps | awk -v pid="$(sed -n '2p' /tmp/skynet.lock)" '$1 == pid')"
kill "$(sed -n '2p' /tmp/skynet.lock)"
rm -rf /tmp/skynet.lock
echo
fi
}
Check_Lock() {
if [ -f "/tmp/skynet.lock" ] && [ -d "/proc/$(sed -n '2p' /tmp/skynet.lock)" ] && [ "$(sed -n '2p' /tmp/skynet.lock)" != "$$" ]; then
if [ "$(($(date +%s) - $(sed -n '3p' /tmp/skynet.lock)))" -gt "1800" ]; then
Kill_Lock
else
logger -st Skynet "[*] Lock File Detected ($(sed -n '1p' /tmp/skynet.lock)) (pid=$(sed -n '2p' /tmp/skynet.lock)) - Exiting (cpid=$$)"
echo; exit 1
fi
fi
echo "$@" > /tmp/skynet.lock
echo "$$" >> /tmp/skynet.lock
date +%s >> /tmp/skynet.lock
lockskynet="true"
}
if [ ! -d "${skynetloc}" ] && ! echo "$@" | grep -wqE "(install|uninstall|disable|update|restart|info)"; then
Check_Lock "$@"
usbtest="0"
if [ -z "${skynetloc}" ]; then usbtest="10"; fi
while [ ! -d "${skynetloc}" ] && [ "$usbtest" -le "10" ]; do
usbtest="$((usbtest + 1))"
logger -st Skynet "[*] USB Not Found - Sleeping For 10 Seconds ( Attempt $usbtest Of 10 )"
sleep 10
done
if [ ! -d "${skynetloc}" ] || [ ! -w "${skynetloc}" ]; then
logger -st Skynet "[*] Problem With USB Install Location - Please Fix Immediately!"
logger -st Skynet "[*] To Change Install Location Run - ( sh $0 install )"
echo; exit 1
fi
fi
if [ "$(nvram get wan0_proto)" = "pppoe" ]; then
iface="ppp0"
else
iface="$(nvram get wan0_ifname)"
fi
Red() {
printf -- '\033[1;31m%s\033[0m\n' "$1"
}
Grn() {
printf -- '\033[1;32m%s\033[0m\n' "$1"
}
Blue() {
printf -- '\033[1;36m%s\033[0m\n' "$1"
}
Ylow() {
printf -- '\033[1;33m%s\033[0m\n' "$1"
}
Check_Swap() {
grep -qF "file" "/proc/swaps"
}
Check_Settings() {
if [ ! -f "$skynetcfg" ]; then
logger -st Skynet "[*] Configuration File Not Detected - Please Use ( sh $0 install ) To Continue"
echo; exit 1
fi
rm -rf "/jffs/shared-Skynet-whitelist" "/jffs/shared-Skynet2-whitelist"
if [ -z "$iotblocked" ]; then iotblocked="disabled"; fi
if [ -z "$displaywebui" ]; then displaywebui="enabled"; fi
if [ ! -f "${skynetloc}/webui/chart.js" ]; then
remotedir="https://raw.githubusercontent.com/Adamm00/IPSet_ASUS/master"
Download_File "webui/chart.js" "${skynetloc}/webui/chart.js"
fi
unset "swaplocation"
if grep -qE "^swapon " /jffs/scripts/post-mount; then
if Check_Swap; then
swaplocation="$(grep -m1 -F "file" "/proc/swaps" | awk '{print $1}')"
if [ "$(grep -E "^swapon " /jffs/scripts/post-mount | awk '{print $2}')" != "$swaplocation" ] && echo "$swaplocation" | grep -E "/..*/"; then
logger -st Skynet "[*] Restoring Missing Swap File Entry ( $swaplocation )"
sed -i '\~swapon ~d' /jffs/scripts/post-mount
if [ "$(wc -l < /jffs/scripts/post-mount)" -lt "2" ]; then echo >> /jffs/scripts/post-mount; fi
sed -i "2i swapon $swaplocation # Skynet" /jffs/scripts/post-mount
fi
else
sleep 10
swapon "$(grep -E "^swapon " /jffs/scripts/post-mount | awk '{print $2}')" 2>/dev/null
fi
else
logger -st Skynet "[*] Scanning /tmp/mnt For Swap Files"
findswap="$(find /tmp/mnt -name "myswap.swp")"
if [ -n "$findswap" ] && [ -f "$findswap" ]; then
logger -st Skynet "[*] Restoring Damaged Swap File Entry ( $findswap )"
sed -i '\~swapon ~d' /jffs/scripts/post-mount
if [ "$(wc -l < /jffs/scripts/post-mount)" -lt "2" ]; then echo >> /jffs/scripts/post-mount; fi
sed -i "2i swapon $findswap # Skynet" /jffs/scripts/post-mount
if ! Check_Swap; then swapon "$findswap"; fi
swaplocation="$findswap"
elif Check_Swap; then
findswap="$(grep -m1 -F "file" "/proc/swaps" | awk '{print $1}')"
if [ -n "$findswap" ] && [ -f "$findswap" ]; then
logger -st Skynet "[*] Restoring Missing Swap File Entry ( $findswap )"
sed -i '\~swapon ~d' /jffs/scripts/post-mount
if [ "$(wc -l < /jffs/scripts/post-mount)" -lt "2" ]; then echo >> /jffs/scripts/post-mount; fi
sed -i "2i swapon $findswap # Skynet" /jffs/scripts/post-mount
swaplocation="$findswap"
fi
fi
fi
if [ -n "$swaplocation" ] && [ ! -f "$swaplocation" ]; then
logger -st Skynet "[*] SWAP File Missing ( $swaplocation ) - Fix This By Running ( $0 debug swap uninstall ) Then ( $0 debug swap install )"
echo; exit 1
elif grep -m1 -qF "partition" "/proc/swaps"; then
logger -st Skynet "[*] SWAP Partitions Not Supported - Please Use SWAP File"
echo; exit 1
elif [ -z "$swaplocation" ] && ! Check_Swap; then
logger -st Skynet "[*] Skynet Requires A SWAP File - Install One By Running ( $0 debug swap install )"
echo; exit 1
fi
if [ -n "$swaplocation" ] && [ "$(du "$swaplocation" | awk '{print $1}')" -lt "1048576" ]; then
logger -st Skynet "[*] SWAP File Too Small - 1GB Minimum Required - Please Fix Immediately!"
fi
if [ "$(nvram get fw_log_x)" != "drop" ] && [ "$(nvram get fw_log_x)" != "both" ]; then
nvram set fw_log_x=drop
nvram commit
restartfirewall="1"
fi
localver="$(Filter_Version < "$0")"
if [ "$banmalwareupdate" = "daily" ]; then
Load_Cron "banmalwaredaily"
elif [ "$banmalwareupdate" = "weekly" ]; then
Load_Cron "banmalwareweekly"
fi
if [ "$autoupdate" = "enabled" ]; then
Load_Cron "autoupdate"
else
Load_Cron "checkupdate"
fi
if [ -d "/opt/bin" ] && [ ! -L "/opt/bin/firewall" ]; then
ln -s /jffs/scripts/firewall /opt/bin
fi
if ! grep -F "sh /jffs/scripts/firewall" /jffs/configs/profile.add; then
echo "alias firewall=\"sh /jffs/scripts/firewall\" # Skynet" >> /jffs/configs/profile.add
fi
if [ "$(nvram get jffs2_scripts)" != "1" ]; then
nvram set jffs2_scripts=1
nvram commit
logger -st Skynet "[*] Custom JFFS Scripts Enabled - Please Manually Reboot To Apply Changes"
fi
if [ "$(nvram get fw_enable_x)" != "1" ]; then
nvram set fw_enable_x=1
nvram commit
restartfirewall="1"
fi
if [ -f "/opt/var/log/dnsmasq.log" ]; then
extendedstats="enabled"
else
extendedstats="disabled"
fi
if [ -f "/opt/bin/scribe" ] && [ ! -f "/opt/etc/syslog-ng.d/skynet" ] && [ -f "/opt/share/syslog-ng/examples/skynet" ]; then
logger -st Skynet "[i] Installing Scribe Plugin"
rm -rf "/opt/etc/syslog-ng.d/firewall" "/opt/etc/logrotate/firewall"
cp -p "/opt/share/syslog-ng/examples/skynet" "/opt/etc/syslog-ng.d"
syslogloc="$(grep -m1 "file(" "/opt/etc/syslog-ng.d/skynet" | awk -F "\"" '{print $2}')"
killall -HUP syslog-ng
elif [ -f "/opt/bin/scribe" ] && [ -f "/opt/etc/syslog-ng.d/skynet" ] && [ "$syslogloc" = "/tmp/syslog.log" ]; then
syslogloc="$(grep -m1 "file(" "/opt/etc/syslog-ng.d/skynet" | awk -F "\"" '{print $2}')"
fi
if nvram get wan0_ipaddr | Is_PrivateIP; then
logger -st Skynet "[*] Private WAN IP Detected $(nvram get wan0_ipaddr) - Please Put Your Modem In Bridge Mode / Disable CG-NAT"
fi
}
Check_Connection() {
livecheck="0"
while [ "$livecheck" != "4" ]; do
if ping -q -w3 -c1 google.com >/dev/null 2>&1; then
break
else
if ping -q -w3 -c1 github.com >/dev/null 2>&1; then
break
else
if ping -q -w3 -c1 snbforums.com >/dev/null 2>&1; then
break
else
livecheck="$((livecheck + 1))"
if [ "$livecheck" != "4" ]; then
echo "[*] Internet Connectivity Error"
sleep 10
else
return "1"
fi
fi
fi
fi
done
}
Check_Files() {
if [ ! -f "/jffs/scripts/firewall-start" ]; then
echo "#!/bin/sh" > /jffs/scripts/firewall-start
echo >> /jffs/scripts/firewall-start
elif [ -f "/jffs/scripts/firewall-start" ] && ! head -1 /jffs/scripts/firewall-start | grep -qE "^#!/bin/sh"; then
sed -i '1s~^~#!/bin/sh\n~' /jffs/scripts/firewall-start
fi
if [ ! -f "/jffs/scripts/services-stop" ]; then
echo "#!/bin/sh" > /jffs/scripts/services-stop
echo >> /jffs/scripts/services-stop
elif [ -f "/jffs/scripts/services-stop" ] && ! head -1 /jffs/scripts/services-stop | grep -qE "^#!/bin/sh"; then
sed -i '1s~^~#!/bin/sh\n~' /jffs/scripts/services-stop
fi
if [ ! -f "/jffs/scripts/service-event" ]; then
echo "#!/bin/sh" > /jffs/scripts/service-event
echo >> /jffs/scripts/service-event
elif [ -f "/jffs/scripts/service-event" ] && ! head -1 /jffs/scripts/service-event | grep -qE "^#!/bin/sh"; then
sed -i '1s~^~#!/bin/sh\n~' /jffs/scripts/service-event
fi
if ! grep -vE "^#" /jffs/scripts/service-event | grep -qF "sh /jffs/scripts/firewall debug genstats"; then
cmdline="if [ \"\$1\" = \"start\" ] && [ \"\$2\" = \"SkynetStats\" ]; then sh /jffs/scripts/firewall debug genstats; fi # Skynet"
sed -i '\~# Skynet~d' /jffs/scripts/service-event
echo "$cmdline" >> /jffs/scripts/service-event
fi
if [ ! -f "/jffs/scripts/post-mount" ]; then
echo "#!/bin/sh" > /jffs/scripts/post-mount
echo >> /jffs/scripts/post-mount
elif [ -f "/jffs/scripts/post-mount" ] && ! head -1 /jffs/scripts/post-mount | grep -qE "^#!/bin/sh"; then
sed -i '1s~^~#!/bin/sh\n~' /jffs/scripts/post-mount
fi
if [ ! -f "/jffs/scripts/unmount" ]; then
echo "#!/bin/sh" > /jffs/scripts/unmount
echo >> /jffs/scripts/unmount
elif [ -f "/jffs/scripts/unmount" ] && ! head -1 /jffs/scripts/unmount | grep -qE "^#!/bin/sh"; then
sed -i '1s~^~#!/bin/sh\n~' /jffs/scripts/unmount
fi
if ! grep -qE "^swapoff " /jffs/scripts/unmount; then
sed -i '\~swapoff ~d' /jffs/scripts/unmount
echo "swapoff -a 2>/dev/null # Skynet" >> /jffs/scripts/unmount
fi
if ! grep -vE "^#" /jffs/scripts/services-stop | grep -qF "sh /jffs/scripts/firewall save"; then
echo "sh /jffs/scripts/firewall save # Skynet" >> /jffs/scripts/services-stop
fi
if [ "$(wc -l < /jffs/scripts/post-mount)" -lt "2" ]; then echo >> /jffs/scripts/post-mount; fi
chmod 755 "/jffs/scripts/firewall" "/jffs/scripts/firewall-start" "/jffs/scripts/services-stop" "/jffs/scripts/service-event" "/jffs/scripts/post-mount" "/jffs/scripts/unmount"
}
Check_Security() {
if [ "$securemode" = "enabled" ]; then
if [ "$(nvram get sshd_enable)" = "1" ] && [ "$(uname -o)" = "ASUSWRT-Merlin" ]; then
logger -st Skynet "[!] Insecure Setting Detected - Disabling WAN SSH Access"
nvram set sshd_enable="2"
nvram commit
restartfirewall="1"
fi
if [ "$(nvram get sshd_wan)" = "1" ] && [ "$(uname -o)" = "ASUSWRT-Merlin-LTS" ]; then
logger -st Skynet "[!] Insecure Setting Detected - Disabling WAN SSH Access"
nvram set sshd_wan="0"
nvram commit
restartfirewall="1"
fi
if [ "$(nvram get misc_http_x)" = "1" ]; then
logger -st Skynet "[!] Insecure Setting Detected - Disabling WAN GUI Access"
nvram set misc_http_x="0"
nvram commit
restartfirewall="1"
fi
fi
if [ "$(nvram get pptpd_enable)" = "1" ] && nvram get pptpd_clientlist | grep -qE 'i[0-9]{7}|p[0-9]{7}'; then
logger -st Skynet "[!] PPTP VPN Server Shows Signs Of Compromise - Investigate Immediately!"
nvram set pptpd_enable="0"
nvram set pptpd_broadcast="0"
nvram commit
echo "[i] Stopping PPTP Service"
service stop_pptpd
echo "[i] Restarting Samba Service"
service restart_samba
restartfirewall="1"
fi
if [ -e "/var/run/tor" ] || [ -e "/var/run/torrc" ] || [ -e "/var/run/tord" ] || [ -e "/var/run/vpnfilterm" ] || [ -e "/var/run/vpnfilterw" ]; then
logger -st Skynet "[!] Suspected VPNFilter Malware Found - Investigate Immediately!"
logger -st Skynet "[!] Caching Potential VPNFilter Malware: ${skynetloc}/vpnfilter.tar.gz"
tar -czf "${skynetloc}/vpnfilter.tar.gz" "/var/run/tor" "/var/run/torrc" "/var/run/tord" "/var/run/vpnfilterm" "/var/run/vpnfilterw" >/dev/null 2>&1
rm -rf "/var/run/tor" "/var/run/torrc" "/var/run/tord" "/var/run/vpnfilterm" "/var/run/vpnfilterw"
restartfirewall="1"
fi
if [ "$(nvram get apps_wget_timeout)" = "3O" ]; then
logger -st Skynet "[!] Warning! Router Malware Detected (apps_wget_timeout=3O) - Investigate Immediately!"
fi
if [ -f "/jffs/chkupdate.sh" ] || [ -f "/tmp/update" ] || [ -f "/tmp/.update.log" ] || [ -f "/jffs/runtime.log" ] || grep -qF "upgrade.sh" "/jffs/scripts/openvpn-event" 2>/dev/null; then
logger -st Skynet "[!] Warning! Router Malware Detected (chkupdate.sh) - Investigate Immediately!"
grep -hoE '([0-9]{1,3}\.){3}[0-9]{1,3}' "/jffs/chkupdate.sh" "/tmp/update" "/tmp/.update.log" "/jffs/runtime.log" "/jffs/scripts/openvpn-event" 2>/dev/null | awk '!x[$0]++' | while IFS= read -r "ip"; do
echo "add Skynet-Blacklist $ip comment \"Malware: chkupdate.sh\""
done | ipset restore -!
fi
}
Clean_Temp() {
rm -rf /tmp/skynet/*
mkdir -p /tmp/skynet/lists
}
Unload_IPTables() {
iptables -t raw -D PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j DROP 2>/dev/null
iptables -t raw -D PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null
iptables -t raw -D OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null
iptables -D SSHBFP -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j SET --add-set Skynet-Blacklist src 2>/dev/null
iptables -D SSHBFP -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j LOG --log-prefix "[BLOCKED - NEW BAN] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -D logdrop -m state --state NEW -j LOG --log-prefix "DROP " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
ip6tables -D logdrop -m state --state NEW -j LOG --log-prefix "DROP " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -D logdrop -m state --state NEW -m limit --limit 4/sec -j LOG --log-prefix "DROP " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
ip6tables -D logdrop -m state --state NEW -m limit --limit 4/sec -j LOG --log-prefix "DROP " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
}
Load_IPTables() {
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "inbound" ]; then
iptables -t raw -I PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j DROP 2>/dev/null
fi
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "outbound" ]; then
iptables -t raw -I PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null
iptables -t raw -I OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null
fi
if [ "$(nvram get sshd_enable)" = "1" ] && [ "$(nvram get sshd_bfp)" = "1" ] && [ "$(uname -o)" = "ASUSWRT-Merlin" ] && [ "$(nvram get switch_wantag)" != "movistar" ]; then
pos1="$(iptables --line -nL SSHBFP | grep -F "seconds: 60 hit_count: 4" | grep -E 'DROP|logdrop' | awk '{print $1}')"
iptables -I SSHBFP "$pos1" -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j SET --add-set Skynet-Blacklist src 2>/dev/null
iptables -I SSHBFP "$pos1" -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j LOG --log-prefix "[BLOCKED - NEW BAN] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
}
Unload_LogIPTables() {
iptables -t raw -D PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j LOG --log-prefix "[BLOCKED - INBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -t raw -D PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j LOG --log-prefix "[BLOCKED - OUTBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -t raw -D OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j LOG --log-prefix "[BLOCKED - OUTBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -D logdrop -m state --state NEW -j LOG --log-prefix "[BLOCKED - INVALID] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src ! -o tun2+ -j LOG --log-prefix "[BLOCKED - IOT] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
}
Load_LogIPTables() {
if [ "$logmode" = "enabled" ]; then
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "inbound" ]; then
pos2="$(iptables --line -nL PREROUTING -t raw | grep -F "Skynet-Master src" | grep -F "DROP" | awk '{print $1}')"
iptables -t raw -I PREROUTING "$pos2" -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j LOG --log-prefix "[BLOCKED - INBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "outbound" ]; then
pos3="$(iptables --line -nL PREROUTING -t raw | grep -F "Skynet-Master dst" | grep -F "DROP" | awk '{print $1}')"
iptables -t raw -I PREROUTING "$pos3" -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j LOG --log-prefix "[BLOCKED - OUTBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
pos4="$(iptables --line -nL OUTPUT -t raw | grep -F "Skynet-Master dst" | grep -F "DROP" | awk '{print $1}')"
iptables -t raw -I OUTPUT "$pos4" -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j LOG --log-prefix "[BLOCKED - OUTBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
if [ "$(nvram get fw_log_x)" = "drop" ] || [ "$(nvram get fw_log_x)" = "both" ] && [ "$loginvalid" = "enabled" ]; then
iptables -I logdrop -m state --state NEW -j LOG --log-prefix "[BLOCKED - INVALID] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
if [ "$iotblocked" = "enabled" ]; then
pos5="$(iptables --line -nL FORWARD | grep -F "Skynet-IOT" | grep -F "DROP" | awk '{print $1}')"
iptables -I FORWARD "$pos5" -i br0 -m set --match-set Skynet-IOT src ! -o tun2+ -j LOG --log-prefix "[BLOCKED - IOT] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
fi
}
Unload_IOTTables() {
if [ "$iotblocked" = "enabled" ]; then
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src ! -o tun2+ -j DROP 2>/dev/null
if [ -n "$iotports" ]; then
if [ "$iotproto" = "all" ] || [ "$iotproto" = "udp" ]; then
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p udp -m udp -m multiport --dports "$iotports" -j ACCEPT 2>/dev/null
fi
if [ "$iotproto" = "all" ] || [ "$iotproto" = "tcp" ]; then
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p tcp -m tcp -m multiport --dports "$iotports" -j ACCEPT 2>/dev/null
fi
else
if [ "$iotproto" = "all" ] || [ "$iotproto" = "udp" ]; then
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p udp -m udp --dport 123 -j ACCEPT 2>/dev/null
fi
if [ "$iotproto" = "all" ] || [ "$iotproto" = "tcp" ]; then
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p tcp -m tcp --dport 123 -j ACCEPT 2>/dev/null
fi
fi
iptables -D FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p icmp -j ACCEPT 2>/dev/null
fi
}
Load_IOTTables() {
if [ "$iotblocked" = "enabled" ]; then
iptables -I FORWARD -i br0 -m set --match-set Skynet-IOT src ! -o tun2+ -j DROP 2>/dev/null
if [ -n "$iotports" ]; then
if [ "$iotproto" = "all" ] || [ "$iotproto" = "udp" ]; then
iptables -I FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p udp -m udp -m multiport --dports "$iotports" -j ACCEPT 2>/dev/null
fi
if [ "$iotproto" = "all" ] || [ "$iotproto" = "tcp" ]; then
iptables -I FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p tcp -m tcp -m multiport --dports "$iotports" -j ACCEPT 2>/dev/null
fi
else
if [ "$iotproto" = "all" ] || [ "$iotproto" = "udp" ]; then
iptables -I FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p udp -m udp --dport 123 -j ACCEPT 2>/dev/null
fi
if [ "$iotproto" = "all" ] || [ "$iotproto" = "tcp" ]; then
iptables -I FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p tcp -m tcp --dport 123 -j ACCEPT 2>/dev/null
fi
fi
iptables -I FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p icmp -j ACCEPT 2>/dev/null
fi
}
Check_IPSets() {
ipset -L -n Skynet-Whitelist >/dev/null 2>&1 || fail="${fail}#1 "
ipset -L -n Skynet-Blacklist >/dev/null 2>&1 || fail="${fail}#2 "
ipset -L -n Skynet-BlockedRanges >/dev/null 2>&1 || fail="${fail}#3 "
ipset -L -n Skynet-Master >/dev/null 2>&1 || fail="${fail}#4 "
ipset -L -n Skynet-IOT >/dev/null 2>&1 || fail="${fail}#5 "
if [ -n "$fail" ]; then return 1; fi
}
Check_IPTables() {
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "inbound" ]; then
iptables -t raw -C PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j DROP 2>/dev/null || fail="${fail}#6 "
fi
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "outbound" ]; then
iptables -t raw -C PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null || fail="${fail}#7 "
iptables -t raw -C OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null || fail="${fail}#8 "
fi
if [ "$(nvram get sshd_enable)" = "1" ] && [ "$(nvram get sshd_bfp)" = "1" ] && [ "$(uname -o)" = "ASUSWRT-Merlin" ] && [ "$(nvram get switch_wantag)" != "movistar" ]; then
iptables -C SSHBFP -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j SET --add-set Skynet-Blacklist src 2>/dev/null || fail="${fail}#9 "
iptables -C SSHBFP -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j LOG --log-prefix "[BLOCKED - NEW BAN] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null || fail="${fail}#10 "
fi
if [ "$iotblocked" = "enabled" ]; then
iptables -C FORWARD -i br0 -m set --match-set Skynet-IOT src ! -o tun2+ -j DROP 2>/dev/null || fail="${fail}#11 "
if [ -n "$iotports" ]; then
if [ "$iotproto" = "all" ] || [ "$iotproto" = "udp" ]; then
iptables -C FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p udp -m udp -m multiport --dports "$iotports" -j ACCEPT 2>/dev/null || fail="${fail}#12 "
fi
if [ "$iotproto" = "all" ] || [ "$iotproto" = "tcp" ]; then
iptables -C FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p tcp -m tcp -m multiport --dports "$iotports" -j ACCEPT 2>/dev/null || fail="${fail}#13 "
fi
else
if [ "$iotproto" = "all" ] || [ "$iotproto" = "udp" ]; then
iptables -C FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p udp -m udp --dport 123 -j ACCEPT 2>/dev/null || fail="${fail}#14 "
fi
if [ "$iotproto" = "all" ] || [ "$iotproto" = "tcp" ]; then
iptables -C FORWARD -i br0 -m set --match-set Skynet-IOT src -o "$iface" -p tcp -m tcp --dport 123 -j ACCEPT 2>/dev/null || fail="${fail}#15 "
fi
fi
fi
if [ "$logmode" = "enabled" ]; then
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "inbound" ]; then
iptables -t raw -C PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j LOG --log-prefix "[BLOCKED - INBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null || fail="${fail}#16 "
fi
if [ "$filtertraffic" = "all" ] || [ "$filtertraffic" = "outbound" ]; then
iptables -t raw -C PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j LOG --log-prefix "[BLOCKED - OUTBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null || fail="${fail}#17 "
iptables -t raw -C OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j LOG --log-prefix "[BLOCKED - OUTBOUND] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null || fail="${fail}#18 "
fi
if [ "$(nvram get fw_log_x)" = "drop" ] || [ "$(nvram get fw_log_x)" = "both" ] && [ "$loginvalid" = "enabled" ]; then
iptables -C logdrop -m state --state NEW -j LOG --log-prefix "[BLOCKED - INVALID] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null || fail="${fail}#19 "
fi
if [ "$iotblocked" = "enabled" ]; then
iptables -C FORWARD -i br0 -m set --match-set Skynet-IOT src ! -o tun2+ -j LOG --log-prefix "[BLOCKED - IOT] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null || fail="${fail}#20 "
fi
fi
if [ -n "$fail" ]; then return 1; fi
}
Unload_IPSets() {
ipset -q destroy Skynet-Master
ipset -q destroy Skynet-Blacklist
ipset -q destroy Skynet-BlockedRanges
ipset -q destroy Skynet-Whitelist
ipset -q destroy Skynet-IOT
}
Unload_Cron() {
if [ -z "$1" ]; then set "all"; fi
for cron in "$@"; do
case "$cron" in
save)
cru d Skynet_save
;;
banmalware)
cru d Skynet_banmalware
;;
autoupdate)
cru d Skynet_autoupdate
;;
checkupdate)
cru d Skynet_checkupdate
;;
genstats)
cru d Skynet_genstats
;;
all)
cru d Skynet_save
cru d Skynet_banmalware
cru d Skynet_autoupdate
cru d Skynet_checkupdate
cru d Skynet_genstats
;;
*)
echo "[*] Error - No Cron Specified To Unload"
;;
esac
done
}
Load_Cron() {
if [ -z "$1" ]; then set "all"; fi
for cron in "$@"; do
case "$cron" in
save)
cru a Skynet_save "0 * * * * sh /jffs/scripts/firewall save"
;;
banmalwaredaily)
hour="$(awk -v min=1 -v max=23 -v freq=1 'BEGIN{"tr -cd 0-9 </dev/urandom | head -c 6" | getline seed; srand(seed); for(i=0;i<freq;i++)print int(min+rand()*(max-min+1))}')"
cru a Skynet_banmalware "25 $hour * * * sh /jffs/scripts/firewall banmalware"
;;
banmalwareweekly)
hour="$(awk -v min=1 -v max=23 -v freq=1 'BEGIN{"tr -cd 0-9 </dev/urandom | head -c 6" | getline seed; srand(seed); for(i=0;i<freq;i++)print int(min+rand()*(max-min+1))}')"
cru a Skynet_banmalware "25 $hour * * Mon sh /jffs/scripts/firewall banmalware"
;;
autoupdate)
min="$(awk -v min=3 -v max=23 -v freq=1 'BEGIN{"tr -cd 0-9 </dev/urandom | head -c 6" | getline seed; srand(seed); for(i=0;i<freq;i++)print int(min+rand()*(max-min+1))}')"
cru a Skynet_autoupdate "$min 1 * * Mon sh /jffs/scripts/firewall update"
;;
checkupdate)
min="$(awk -v min=3 -v max=23 -v freq=1 'BEGIN{"tr -cd 0-9 </dev/urandom | head -c 6" | getline seed; srand(seed); for(i=0;i<freq;i++)print int(min+rand()*(max-min+1))}')"
cru a Skynet_checkupdate "$min 1 * * Mon sh /jffs/scripts/firewall update check"
;;
genstats)
min="$(awk -v min=28 -v max=57 -v freq=1 'BEGIN{"tr -cd 0-9 </dev/urandom | head -c 6" | getline seed; srand(seed); for(i=0;i<freq;i++)print int(min+rand()*(max-min+1))}')"
cru a Skynet_genstats "$min */12 * * * sh /jffs/scripts/firewall debug genstats"
;;
*)
echo "[*] Error - No Cron Specified To Load"
;;
esac
done
}
Is_IP() {
grep -qE '^([0-9]{1,3}\.){3}[0-9]{1,3}$'
}
Is_Range() {
grep -qE '^([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}$'
}
Is_IPRange() {
grep -qE '^([0-9]{1,3}\.){3}[0-9]{1,3}(/[0-9]{1,2})?$'
}
Is_MAC() {
grep -qE '^([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}$'
}
Is_Port() {
grep -qE '^[0-9]{1,5}$'
}
Is_ASN() {
grep -qiE '^AS[0-9]{1,6}$'
}
Strip_Domain() {
sed 's~http[s]*://~~;s~/.*~~;s~www\.~~g' | awk '!x[$0]++'
}
Domain_Lookup() {
nslookup "$1" | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk 'NR>2'
}
LAN_CIDR_Lookup() {
if [ "$(echo "$1" | cut -c1-8)" = "192.168." ]; then
echo "192.168.0.0/16"
elif [ "$(echo "$1" | cut -c1-4)" = "172." ]; then
echo "172.16.0.0/12"
elif [ "$(echo "$1" | cut -c1-3)" = "10." ]; then
echo "10.0.0.0/8"
fi
}
Extended_DNSStats() {
case "$1" in
1)
if [ "$lookupcountry" = "enabled" ]; then
country="($(curl -fsL --retry 3 --connect-timeout 3 -A "ASUSWRT-Merlin $model v$(nvram get buildno)_$(nvram get extendno) / $(tr -cd 0-9 </dev/urandom | head -c 20)" "https://api.db-ip.com/v2/free/${statdata}/countryCode/"))"
fi
banreason="$(grep -F " ${statdata} " "$skynetipset" | grep -m1 -vF "Skynet-Whitelist" | awk -F '"' '{print $2}')"
if [ -z "$banreason" ]; then
banreason="$(grep -E "$(echo "$statdata" | cut -d '.' -f1-3)..*/" "$skynetipset" | grep -m1 -vF "Skynet-Whitelist" | awk -F '"' '{print $2}')*"
fi
if [ "${#banreason}" -gt "45" ]; then banreason="$(echo "$banreason" | cut -c 1-45)"; fi
printf '%-15s %-4s | %-55s | %-45s | %-60s \n' "$statdata" "$country" "https://otx.alienvault.com/indicator/ip/${statdata}" "$banreason" "$(grep -F "$statdata" /tmp/skynet/skynetstats.txt | awk '{print $1}' | xargs)"
;;
2)
hits="$(echo "$statdata" | awk '{print $1}')"
ipaddr="$(echo "$statdata" | awk '{print $2}')"
if [ "$lookupcountry" = "enabled" ]; then
country="($(curl -fsL --retry 3 --connect-timeout 3 -A "ASUSWRT-Merlin $model v$(nvram get buildno)_$(nvram get extendno) / $(tr -cd 0-9 </dev/urandom | head -c 20)" "https://api.db-ip.com/v2/free/${ipaddr}/countryCode/"))"
fi
banreason="$(grep -F " ${ipaddr} " "$skynetipset" | grep -m1 -vF "Skynet-Whitelist" | awk -F '"' '{print $2}')"
if [ -z "$banreason" ]; then
banreason="$(grep -E "$(echo "$ipaddr" | cut -d '.' -f1-3)..*/" "$skynetipset" | grep -m1 -vF "Skynet-Whitelist" | awk -F '"' '{print $2}')*"
fi
if [ "${#banreason}" -gt "45" ]; then banreason="$(echo "$banreason" | cut -c 1-45)"; fi
printf '%-10s | %-15s %-4s | %-55s | %-45s | %-60s\n' "${hits}x" "${ipaddr}" "${country}" "https://otx.alienvault.com/indicator/ip/${ipaddr}" "$banreason" "$(grep -F "$ipaddr" /tmp/skynet/skynetstats.txt | awk '{print $1}' | xargs)"
;;
*)
echo "[*] Error - No Stats Specified To Load"
;;
esac
}
Display_Header() {
case "$1" in
1)
printf '\n\n%-20s | %-55s | %-45s | %-60s\n' "--------------" "--------------" "--------------" "----------------------"
printf '%-20s | %-55s | %-45s | %-60s\n' "| IP Address |" "| AlienVault |" "| Ban Reason |" "| Associated Domains |"
printf '%-20s | %-55s | %-45s | %-60s\n\n' "--------------" "--------------" "--------------" "----------------------"
;;
2)
printf '\n\n%-10s | %-20s | %-55s | %-45s | %-60s\n' "--------" "--------------" "--------------" "--------------" "----------------------"
printf '%-10s | %-20s | %-55s | %-45s | %-60s\n' "| Hits |" "| IP Address |" "| AlienVault |" "| Ban Reason |" "| Associated Domains |"
printf '%-10s | %-20s | %-55s | %-45s | %-60s\n\n' "--------" "--------------" "--------------" "--------------" "----------------------"
;;
3)
printf '\n\n%-10s | %-10s | %-60s\n' "--------" "--------" "--------------"
printf '%-10s | %-10s | %-60s\n' "| Hits |" "| Port |" "| SpeedGuide |"
printf '%-10s | %-10s | %-60s\n\n' "--------" "--------" "--------------"
;;
4)
printf '\n\n%-10s | %-16s | %-60s\n' "--------" "------------" "---------------"
printf '%-10s | %-16s | %-60s\n' "| Hits |" "| Local IP |" "| Device Name |"
printf '%-10s | %-16s | %-60s\n\n' "--------" "------------" "---------------"
;;
5)
printf '\n\n%-20s | %-40s\n' "--------------" "---------"
printf '%-20s | %-40s\n' "| IP Address |" "| List |"
printf '%-20s | %-40s\n\n' "--------------" "---------"
;;
6)
printf '\n\n%-40s | %-16s | %-20s | %-15s\n' "---------------" "------------" "---------------" "----------"
printf '%-40s | %-16s | %-20s | %-15s\n' "| Device Name |" "| Local IP |" "| MAC Address |" "| Status |"
printf '%-40s | %-16s | %-20s | %-15s\n\n' "---------------" "------------" "---------------" "----------"
;;
7)
printf '\n\n%-35s | %-8s\n' "--------------------" "----------"
printf '%-35s | %-8s\n' "| Test Description |" "| Result |"
printf '%-35s | %-8s\n\n' "--------------------" "----------"
;;
8)
printf '\n\n%-35s | %-8s\n' "-----------" "----------"
printf '%-35s | %-8s\n' "| Setting |" "| Status |"
printf '%-35s | %-8s\n\n' "----------" "----------"
;;
9)
printf '\n\n=============================================================================================================\n\n\n'
;;
10)
printf '\n=============================================================================================================\n\n\n'
;;
11)
printf '%-10s | %-18s | %-10s | %-18s | %-10s | %-20s\n' "---------" "-------------" "---------" "------------------" "---------" "------------------"
printf '%-10s | %-18s | %-10s | %-18s | %-10s | %-20s\n' "| Proto |" "| Source IP |" "| SPort |" "| Destination IP |" "| DPort |" "| Identification |"
printf '%-10s | %-18s | %-10s | %-18s | %-10s | %-20s\n\n' "---------" "-------------" "---------" "------------------" "---------" "------------------"
;;
*)
echo "[*] Error - No Header Specified To Load"
;;
esac
}
Display_Message() {
btime="$(date +%s)"; printf "%-35s | " "$1"
}
Display_Result() {
result="$(Grn "[$(($(date +%s) - btime))s]")"
printf '%-8s\n' "$result"
}
Filter_Version() {
grep -m1 -oE 'v[0-9]{1,2}([.][0-9]{1,2})([.][0-9]{1,2})'
}
Filter_Date() {
grep -m1 -oE '[0-9]{1,2}([/][0-9]{1,2})([/][0-9]{1,4})'
}
Filter_IP() {
grep -E '^([0-9]{1,3}\.){3}[0-9]{1,3}$'
}
Filter_IPLine() {
grep -E '([0-9]{1,3}\.){3}[0-9]{1,3}'
}
Filter_OutIP() {
grep -vE '^([0-9]{1,3}\.){3}[0-9]{1,3}$'
}
Is_PrivateIP() {
grep -qE '^(0\.|10\.|100\.(6[4-9]|[7-9][0-9]|1[0-1][0-9]|12[0-7])\.|127\.|169\.254\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.0\.0\.|192\.0\.2\.|192\.168\.|198\.(1[8-9])\.|198\.51\.100\.|203\.0\.113\.|2(2[4-9]|[3-4][0-9]|5[0-5])\.)'
}
Filter_PrivateIP() {
grep -vE '^(0\.|10\.|100\.(6[4-9]|[7-9][0-9]|1[0-1][0-9]|12[0-7])\.|127\.|169\.254\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.0\.0\.|192\.0\.2\.|192\.168\.|198\.(1[8-9])\.|198\.51\.100\.|203\.0\.113\.|2(2[4-9]|[3-4][0-9]|5[0-5])\.|8\.8\.8\.8|8\.8\.4\.4|1\.1\.1\.1|1\.0\.0\.1)'
}
Filter_PrivateSRC() {
grep -E 'SRC=(0\.|10\.|100\.(6[4-9]|[7-9][0-9]|1[0-1][0-9]|12[0-7])\.|127\.|169\.254\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.0\.0\.|192\.0\.2\.|192\.168\.|198\.(1[8-9])\.|198\.51\.100\.|203\.0\.113\.|2(2[4-9]|[3-4][0-9]|5[0-5])\.)'
}
Filter_PrivateDST() {
grep -E 'DST=(0\.|10\.|100\.(6[4-9]|[7-9][0-9]|1[0-1][0-9]|12[0-7])\.|127\.|169\.254\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.0\.0\.|192\.0\.2\.|192\.168\.|198\.(1[8-9])\.|198\.51\.100\.|203\.0\.113\.|2(2[4-9]|[3-4][0-9]|5[0-5])\.)'
}
Spinner_End() {
if [ -f /tmp/skynet/spinstart ]; then
pider="$(cat /tmp/skynet/spinstart)"
rm -rf /tmp/skynet/spinstart
if [ -d "/proc/$pider" ]; then kill "$pider"; fi
fi
}
Spinner_Start() {
Spinner_End
touch "/tmp/skynet/spinstart"
{ while [ -f "/tmp/skynet/spinstart" ]; do
for c in \*-- -\*- --\*; do
printf '\033[1;32m%s\033[0m\b\b\b' "$c"
usleep 250000
done
printf ' \b\b\b'
done; } &
echo "$!" > /tmp/skynet/spinstart
}
Save_IPSets() {
if Check_IPSets; then
{ ipset save Skynet-Whitelist; ipset save Skynet-Blacklist; ipset save Skynet-BlockedRanges; ipset save Skynet-Master; ipset save Skynet-IOT; } > "$skynetipset" 2>/dev/null
fi
}
Unban_PrivateIP() {
if [ "$unbanprivateip" = "enabled" ] && [ "$logmode" = "enabled" ]; then
grep -F "INBOUND" "$syslogloc" | Filter_PrivateSRC | grep -oE 'SRC=[0-9,\.]*' | cut -c 5- | awk '!x[$0]++' | while IFS= read -r "ip"; do
echo "add Skynet-Whitelist $ip comment \"Private IP\""
echo "del Skynet-Blacklist $ip"
done | ipset restore -!
grep -F "OUTBOUND" "$syslogloc" | Filter_PrivateDST | grep -oE 'DST=[0-9,\.]*' | cut -c 5- | awk '!x[$0]++' | while IFS= read -r "ip"; do
echo "add Skynet-Whitelist $ip comment \"Private IP\""
echo "del Skynet-Blacklist $ip"
done | ipset restore -!
fi
}
Refresh_AiProtect() {
if [ "$banaiprotect" = "enabled" ] && [ -f /jffs/.sys/AiProtectionMonitor/AiProtectionMonitor.db ]; then
if [ -f /opt/bin/opkg ] && [ ! -f /opt/bin/sqlite3 ]; then
opkg update && opkg install sqlite3-cli
fi
if [ -f /opt/bin/opkg ] && [ -f /opt/bin/sqlite3 ]; then
sed '\~add Skynet-Blacklist ~!d;\~BanAiProtect~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
sqlite3 /jffs/.sys/AiProtectionMonitor/AiProtectionMonitor.db "SELECT src FROM monitor;" | awk '!x[$0]++' | Filter_IP | Filter_PrivateIP | awk '{printf "add Skynet-Blacklist %s comment \"BanAiProtect\"\n", $1 }' | ipset restore -!
sqlite3 /jffs/.sys/AiProtectionMonitor/AiProtectionMonitor.db "SELECT dst FROM monitor;" | awk '!x[$0]++' | Filter_OutIP | grep -v ":" | while IFS= read -r "domain"; do
for ip in $(Domain_Lookup "$domain" 2>/dev/null | Filter_PrivateIP); do
echo "add Skynet-Blacklist $ip comment \"BanAiProtect: $domain\""
done &
done | ipset restore -!
fi
fi
}
Refresh_MBans() {
if grep -qF "[Manual Ban] TYPE=Domain" "$skynetevents"; then
grep -F "[Manual Ban] TYPE=Domain" "$skynetevents" | awk '{print $9}' | awk '!x[$0]++' | sed 's~Host=~~g' > /tmp/skynet/mbans.list
sed -i '\~\[Manual Ban\] TYPE=Domain~d;' "$skynetevents"
sed '\~add Skynet-Blacklist ~!d;\~ManualBanD~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
while IFS= read -r "domain"; do
for ip in $(Domain_Lookup "$domain" | Filter_PrivateIP); do
echo "add Skynet-Blacklist $ip comment \"ManualBanD: $domain\""
echo "$(date +"%b %d %T") Skynet: [Manual Ban] TYPE=Domain SRC=$ip Host=$domain " >> "$skynetevents"
done
done < /tmp/skynet/mbans.list | ipset restore -!
rm -rf /tmp/skynet/mbans.list
fi
}
Refresh_MWhitelist() {
if grep -qE "Manual Whitelist.* TYPE=Domain" "$skynetevents"; then
grep -E "Manual Whitelist.* TYPE=Domain" "$skynetevents" | awk '{print $9}' | awk '!x[$0]++' | sed 's~Host=~~g' > /tmp/skynet/mwhitelist.list
sed -i '\~\[Manual Whitelist\] TYPE=Domain~d;' "$skynetevents"
sed '\~add Skynet-Whitelist ~!d;\~ManualWlistD~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
while IFS= read -r "domain"; do
for ip in $(Domain_Lookup "$domain"); do
echo "add Skynet-Whitelist $ip comment \"ManualWlistD: $domain\""
echo "$(date +"%b %d %T") Skynet: [Manual Whitelist] TYPE=Domain SRC=$ip Host=$domain " >> "$skynetevents"
done
done < /tmp/skynet/mwhitelist.list | ipset restore -!
cat /tmp/skynet/mwhitelist.list >> /jffs/addons/shared-whitelists/shared-Skynet2-whitelist
rm -rf /tmp/skynet/mwhitelist.list
fi
}
Whitelist_Extra() {
echo "ipdeny.com
ipapi.co
api.db-ip.com
ipinfo.io
speedguide.net
otx.alienvault.com
raw.githubusercontent.com
iplists.firehol.org
astrill.com
strongpath.net
snbforums.com
bin.entware.net
nwsrv-ns1.asus.com
$(nvram get "firmware_server")
$(nvram get "ntp_server0")
$(nvram get "ntp_server1")" | tr -d "\t" > /jffs/addons/shared-whitelists/shared-Skynet2-whitelist
}
Whitelist_CDN() {
sed '\~add Skynet-Whitelist ~!d;\~CDN-Whitelist~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
if [ "$cdnwhitelist" = "enabled" ]; then
{
# Apple AS714 | Akamai AS12222 AS16625 | HighWinds AS33438 AS20446 | Fastly AS54113
for asn in AS714 AS12222 AS16625 AS33438 AS20446 AS54113; do
curl -fsL --retry 3 --connect-timeout 3 "https://ipinfo.io/$asn" | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}' | awk -v asn="$asn" '{printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: %s\"\n", $1, asn }' &
done
wait
curl -fsL --retry 3 --connect-timeout 3 https://www.cloudflare.com/ips-v4 | grep -E '([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}' | awk '{printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: CloudFlare\"\n", $1 }'
curl -fsL --retry 3 --connect-timeout 3 https://ip-ranges.amazonaws.com/ip-ranges.json | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}' | awk '{printf "add Skynet-Whitelist %s comment \"CDN-Whitelist: Amazon\"\n", $1 }'
} | awk '!x[$0]++' | ipset restore -!
fi
}
Whitelist_VPN() {
echo "add Skynet-Whitelist $(nvram get vpn_server1_sn)/24 comment \"nvram: vpn_server1_sn\"
add Skynet-Whitelist $(nvram get vpn_server2_sn)/24 comment \"nvram: vpn_server2_sn\"
add Skynet-Whitelist $(nvram get vpn_server_sn)/24 comment \"nvram: vpn_server_sn\"
add Skynet-Whitelist $(nvram get vpn_client1_addr)/24 comment \"nvram: vpn_client1_addr\"
add Skynet-Whitelist $(nvram get vpn_client2_addr)/24 comment \"nvram: vpn_client2_addr\"
add Skynet-Whitelist $(nvram get vpn_client3_addr)/24 comment \"nvram: vpn_client3_addr\"
add Skynet-Whitelist $(nvram get vpn_client4_addr)/24 comment \"nvram: vpn_client4_addr\"
add Skynet-Whitelist $(nvram get vpn_client5_addr)/24 comment \"nvram: vpn_client5_addr\"" | tr -d "\t" | Filter_IPLine | ipset restore -! 2>/dev/null
if [ -f "/dev/astrill/openvpn.conf" ]; then ipset -q -A Skynet-Whitelist "$(sed '\~remote ~!d;s~remote ~~' "/dev/astrill/openvpn.conf")/24" comment "nvram: Astrill_VPN"; fi
}
Whitelist_Shared() {
echo "add Skynet-Whitelist $(nvram get wan0_ipaddr) comment \"nvram: wan0_ipaddr\"
add Skynet-Whitelist $(LAN_CIDR_Lookup "$(nvram get "lan_ipaddr")") comment \"nvram: lan_ipaddr\"
add Skynet-Whitelist $(nvram get wan_dns1_x) comment \"nvram: wan_dns1_x\"
add Skynet-Whitelist $(nvram get wan_dns2_x) comment \"nvram: wan_dns2_x\"
add Skynet-Whitelist $(nvram get wan0_dns1_x) comment \"nvram: wan0_dns1_x\"
add Skynet-Whitelist $(nvram get wan0_dns2_x) comment \"nvram: wan0_dns2_x\"
add Skynet-Whitelist $(nvram get wan_dns | awk '{print $1}') comment \"nvram: wan_dns\"
add Skynet-Whitelist $(nvram get wan_dns | awk '{print $2}') comment \"nvram: wan_dns\"
add Skynet-Whitelist $(nvram get wan0_dns | awk '{print $1}') comment \"nvram: wan0_dns\"
add Skynet-Whitelist $(nvram get wan0_dns | awk '{print $2}') comment \"nvram: wan0_dns\"
add Skynet-Whitelist $(nvram get wan0_xdns | awk '{print $1}') comment \"nvram: wan0_xdns\"
add Skynet-Whitelist $(nvram get wan0_xdns | awk '{print $2}') comment \"nvram: wan0_xdns\"
add Skynet-Whitelist 192.30.252.0/22 comment \"nvram: Github Content Server\"
add Skynet-Whitelist 127.0.0.0/8 comment \"nvram: Localhost\"" | tr -d "\t" | Filter_IPLine | ipset restore -! 2>/dev/null
if [ -n "$(find /jffs/addons/shared-whitelists -name 'shared-*-whitelist')" ]; then
sed '\~add Skynet-Whitelist ~!d;\~Shared-Whitelist~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
swapsize="$(du "$swaplocation" | awk '{print $1}')"
if [ "$(cat /jffs/addons/shared-whitelists/shared-*-whitelist | wc -l)" -gt "150" ] && [ "$swapsize" -lt "1048576" ] ||
{ [ "$(cat /jffs/addons/shared-whitelists/shared-*-whitelist | wc -l)" -gt "150" ] && [ "$swapsize" -lt "2097152" ] && [ "$(nvram get dns_local_cache)" = "1" ]; }; then
Clean_Temp
cwd="$(pwd)"
cd /tmp/skynet/lists || exit 1
grep -hvF "#" /jffs/addons/shared-whitelists/shared-*-whitelist | Strip_Domain | split -l 150
for listname in *; do
while IFS= read -r "domain"; do
for ip in $(Domain_Lookup "$domain" 2> /dev/null); do
echo "add Skynet-Whitelist $ip comment \"Shared-Whitelist: $domain\""
done &
done < "$listname"
wait
done | ipset restore -!
cd "$cwd" || exit 1
else
grep -hvF "#" /jffs/addons/shared-whitelists/shared-*-whitelist | Strip_Domain | while IFS= read -r "domain"; do
for ip in $(Domain_Lookup "$domain" 2> /dev/null); do
echo "add Skynet-Whitelist $ip comment \"Shared-Whitelist: $domain\""
done &
done | ipset restore -!
fi
fi
if [ "$(uname -o)" = "ASUSWRT-Merlin" ]; then dotvar="dnspriv_rulelist"; else dotvar="stubby_dns"; fi
for ip in $(nvram get "$dotvar" | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}'); do
echo "add Skynet-Whitelist $ip comment \"nvram: $dotvar\""
done | ipset restore -!
if [ -f "/jffs/dnscrypt/public-resolvers.md" ] && [ -f "/jffs/dnscrypt/relays.md" ]; then
grep -hoE '^sdns:.*' /jffs/dnscrypt/public-resolvers.md /jffs/dnscrypt/relays.md | sed "s~'~~g;s~sdns://~~g;s~-~+~g;s~_~/~g" | while read -r stamp; do
echo "${stamp}$(echo '====' | cut -c-$(($(printf '%s' "${stamp}" | wc -m) % 4)))" | openssl enc -base64 -d -A
done | strings | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk '{printf "add Skynet-Whitelist %s comment \"nvram: DNSCrypt Stamp\"\n", $1 }' | ipset restore -!
fi
if [ -f "/opt/var/lib/unbound/root.hints" ]; then
grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}' /opt/var/lib/unbound/root.hints | while read -r roothint; do
echo "add Skynet-Whitelist $roothint comment \"nvram: Root DNS Server\""
done | ipset restore -!
fi
}
WriteStats_ToJS() {
{
echo "function ${3}() {"
printf '\tdocument.getElementById("%s").innerHTML = "%s"\n' "$4" "$(if [ -f "$1" ]; then cat "$1"; else echo "$1"; fi)"
echo "}"
echo
} >> "$2"
}
WriteData_ToJS() {
inputfile="$1"
outputfile="$2"
shift 2
i="0"
for var in "$@"; do
i="$((i + 1))"
{
echo "var $var;"
echo "$var = [];"
echo "${var}.unshift('$(awk -F "~" -v i="$i" '{printf t $i} {t=","}' "$inputfile" | sed "s~,~\\', \\'~g")');"
echo
} >> "$outputfile"
done
}
Generate_Stats() {
if nvram get rc_support | grep -qF "am_addons"; then
if [ "$displaywebui" = "enabled" ]; then
mkdir -p "${skynetloc}/webui/stats"
true > "${skynetloc}/webui/stats.js"
if [ -f "/opt/var/log/dnsmasq.log" ]; then