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firewall.sh
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#!/bin/sh
#############################################################################################################
# _____ _ _ __ #
# / ____| | | | / / #
# | (___ | | ___ _ _ __ ___| |_ __ __/ /_ #
# \___ \| |/ / | | | '_ \ / _ \ __| \ \ / / '_ \ #
# ____) | <| |_| | | | | __/ |_ \ V /| (_) | #
# |_____/|_|\_\\__, |_| |_|\___|\__| \_/ \___/ #
# __/ | #
# |___/ #
# #
## - 17/05/2018 - Asus Firewall Addition By Adamm v6.1.8 #
## https://github.com/Adamm00/IPSet_ASUS #
#############################################################################################################
export PATH=/sbin:/bin:/usr/sbin:/usr/bin$PATH
clear
head -16 "$0"
export LC_ALL=C
retry=1
while [ "$(nvram get ntp_ready)" = "0" ] && [ "$retry" -lt "300" ]; do
retry=$((retry+1))
sleep 1
done
if [ "$retry" -ge "300" ]; then logger -st Skynet "[ERROR] NTP Failed To Start After 5 Minutes - Please Fix Immediately!"; exit 1; fi
red="printf \\e[1;31m%s\\e[0m\\n"
grn="printf \\e[1;32m%s\\e[0m\\n"
blue="printf \\e[1;36m%s\\e[0m\\n"
ylow="printf \\e[1;33m%s\\e[0m\\n"
stime="$(date +%s)"
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="${skynetloc}/skynet.ipset"
if [ -z "$skynetloc" ] && tty >/dev/null 2>&1; then
set "install"
fi
# Detect Location and Force Upgrade
if [ ! -f "$skynetcfg" ] && grep -E "sh /jffs/scripts/firewall start .*usb=.* # Skynet" /jffs/scripts/firewall-start 2>/dev/null | grep -qvE "^#"; then
location="$(grep -ow "usb=.*" /jffs/scripts/firewall-start | grep -vE "^#" | awk '{print $1}' | cut -c 5-)/skynet"
if [ -f "${location}/scripts/ipset.txt" ]; then
forceupgrade="1"
if ! echo "$@" | grep -wqE "install"; then
logger -st Skynet "[ERROR] Legacy v5 Installation Detected - Please Run Installer Manually To Upgrade!"
echo
exit 0
fi
fi
elif [ ! -f "$skynetcfg" ] && grep -E "sh /jffs/scripts/firewall start.* # Skynet" /jffs/scripts/firewall-start 2>/dev/null | grep -v "usb=" | grep -v "skynetloc=" | grep -qvE "^#"; then
location="/jffs"
if [ -f "${location}/scripts/ipset.txt" ]; then
forceupgrade="2"
if ! echo "$@" | grep -wqE "install"; then
logger -st Skynet "[ERROR] Legacy v5 Installation Detected - Please Run Installer Manually To Upgrade!"
echo
exit 0
fi
fi
fi
Check_Lock () {
if [ -f "/tmp/skynet.lock" ] && [ -d "/proc/$(sed -n '2p' /tmp/skynet.lock)" ] && [ "$(sed -n '2p' /tmp/skynet.lock)" != "$$" ]; then
logger -st Skynet "[INFO] Lock File Detected ($(sed -n '1p' /tmp/skynet.lock)) (pid=$(sed -n '2p' /tmp/skynet.lock)) - Exiting (cpid=$$)"
echo
exit 1
else
echo "$@" > /tmp/skynet.lock
echo "$$" >> /tmp/skynet.lock
lockskynet="true"
fi
}
if [ ! -d "$skynetloc" ] && ! echo "$@" | grep -wqE "(install|uninstall|disable|update|restart|info)"; then
Check_Lock "$@"
retry="1"
if [ -z "$skynetloc" ]; then retry="11"; fi
while [ ! -d "$skynetloc" ] && [ "$retry" -lt "11" ]; do
logger -st Skynet "[INFO] USB Not Found - Sleeping For 10 Seconds ( Attempt $retry Of 10 )"
retry=$((retry+1))
sleep 10
done
if [ ! -d "$skynetloc" ] || [ ! -w "$skynetloc" ]; then
logger -st Skynet "[ERROR] Problem With USB Install Location - Please Fix Immediately!"
logger -st Skynet "[ERROR] When Fixed Run ( sh $0 restart )"
echo
exit 1
fi
fi
if [ "$(nvram get wan0_proto)" = "pppoe" ] || [ "$(nvram get wan0_proto)" = "pptp" ] || [ "$(nvram get wan0_proto)" = "l2tp" ]; then
iface="ppp0"
else
iface="$(nvram get wan0_ifname)"
fi
Kill_Lock () {
if [ -f "/tmp/skynet.lock" ] && [ -d "/proc/$(sed -n '2p' /tmp/skynet.lock)" ]; then
logger -st Skynet "[INFO] Killing Locked Processes ($(sed -n '1p' /tmp/skynet.lock)) (pid=$(sed -n '2p' /tmp/skynet.lock))"
logger -st Skynet "[INFO] $(ps | awk -v pid="$(sed -n '2p' /tmp/skynet.lock)" '$1 == pid')"
kill "$(sed -n '2p' /tmp/skynet.lock)"
rm -rf /tmp/skynet.lock
fi
}
Check_Settings () {
if [ ! -f "$skynetcfg" ]; then
logger -st Skynet "[ERROR] Configuration Not Detected - Please Use ( sh $0 install ) To Continue"
exit 1
fi
conflicting_scripts="(IPSet_Block.sh|malware-filter|privacy-filter|ipBLOCKer.sh|ya-malware-block.sh|iblocklist-loader.sh|firewall-reinstate.sh)$"
if /usr/bin/find /jffs /tmp/mnt | grep -qE "$conflicting_scripts"; then
logger -st Skynet "[ERROR] $(/usr/bin/find /jffs /tmp/mnt | grep -E "$conflicting_scripts" | xargs) Detected - This Script Will Cause Conflicts! Please Uninstall It ASAP"
fi
if ! grep -F "swapon" /jffs/scripts/post-mount | grep -qvE "^#" && ! grep -F "swap" /jffs/configs/fstab 2>/dev/null | grep -qvE "^#"; then
logger -st Skynet "[ERROR] Skynet Requires A SWAP File - Install One By Running ( $0 debug swap install )"
exit 1
fi
if [ "$(nvram get fw_log_x)" != "drop" ] && [ "$(nvram get fw_log_x)" != "both" ]; then
nvram set fw_log_x=drop
fi
localver="$(Filter_Version "$0")"
if [ "$banmalwareupdate" = "daily" ]; then
cru a Skynet_banmalware "25 2 * * * sh /jffs/scripts/firewall banmalware"
elif [ "$banmalwareupdate" = "weekly" ]; then
cru a Skynet_banmalware "25 2 * * Mon sh /jffs/scripts/firewall banmalware"
fi
if [ "$autoupdate" = "enabled" ]; then
cru a Skynet_autoupdate "25 1 * * Mon sh /jffs/scripts/firewall update"
else
cru a Skynet_checkupdate "25 1 * * Mon sh /jffs/scripts/firewall update check"
fi
if [ -d "/opt/bin" ] && [ ! -f "/opt/bin/firewall" ]; then
ln -s /jffs/scripts/firewall /opt/bin
fi
if [ "$(nvram get jffs2_scripts)" != "1" ]; then
nvram set jffs2_scripts=1
logger -st Skynet "[INFO] Custom JFFS Scripts Enabled - Please Manually Reboot To Apply Changes"
fi
if [ "$(nvram get fw_enable_x)" != "1" ]; then
nvram set fw_enable_x=1
fi
if [ -f "$(/usr/bin/find /mnt/*/adblocking/.config/ab-solution.cfg 2>/dev/null)" ]; then
abcfg="$(find /mnt/*/adblocking/.config/ab-solution.cfg)"
ablocation="$(dirname "$abcfg")"
if ! grep -qE "hostsFileType=.*\\+" "$abcfg"; then
if [ ! -f "${ablocation}/AddPlusHosts" ] && [ ! -f "${ablocation}/AddPlusHostsDismissed" ]; then
touch "${ablocation}/AddPlusHosts"
fi
fi
fi
}
Check_Files () {
if [ ! -f "/jffs/scripts/firewall-start" ]; then
echo "#!/bin/sh" > /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
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/post-mount" ]; then
echo "#!/bin/sh" > /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 [ "$1" = "verify" ] && ! grep -qF "# Skynet" /jffs/scripts/services-stop; then
echo "sh /jffs/scripts/firewall save # Skynet Firewall Addition" >> /jffs/scripts/services-stop
fi
}
Check_Status () {
{ [ -f "$skynetipset" ] && ipset -L -n Skynet-Whitelist >/dev/null 2>&1 && iptables -t raw -C PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j DROP >/dev/null 2>&1; } ||
{ [ -f "$skynetipset" ] && ipset -L -n Skynet-Whitelist >/dev/null 2>&1 && iptables -t raw -C PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP >/dev/null 2>&1 && iptables -t raw -C OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP >/dev/null 2>&1; }
}
Unload_IPTables () {
iptables -t raw -D PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j DROP 2>/dev/null
iptables -t raw -D PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null
iptables -t raw -D OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null
iptables -D SSHBFP -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j SET --add-set Skynet-Blacklist src 2>/dev/null
iptables -D SSHBFP -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j LOG --log-prefix "[BLOCKED - NEW BAN] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
iptables -D logdrop -m state --state NEW -j LOG --log-prefix "DROP " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
ip6tables -D logdrop -m state --state NEW -j LOG --log-prefix "DROP " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
}
Load_IPTables () {
if [ "$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" ]; 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-Master src 2>/dev/null
iptables -I SSHBFP "$pos1" -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j LOG --log-prefix "[BLOCKED - NEW BAN] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
}
Unload_DebugIPTables () {
iptables -t raw -D PREROUTING -i "$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
}
Load_DebugIPTables () {
if [ "$debugmode" = "enabled" ]; then
if [ "$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" ] && [ "$loginvalid" != "disabled" ]; then
iptables -I logdrop -m state --state NEW -j LOG --log-prefix "[BLOCKED - INVALID] " --log-tcp-sequence --log-tcp-options --log-ip-options 2>/dev/null
fi
fi
}
Unload_IPSets () {
ipset -q destroy Skynet-Master
ipset -q destroy Skynet-Blacklist
ipset -q destroy Skynet-BlockedRanges
ipset -q destroy Skynet-Whitelist
}
Unload_Cron () {
cru d Skynet_save
cru d Skynet_banmalware
cru d Skynet_autoupdate
cru d Skynet_checkupdate
}
Is_IP () {
grep -qE '^([0-9]{1,3}\.){3}[0-9]{1,3}$'
}
Is_Range () {
grep -qE '^([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}$'
}
Is_Port () {
grep -qE '^[0-9]{1,5}$'
}
Domain_Lookup () {
nslookup "$(echo "$1" | sed 's~http[s]*://~~;s~/.*~~')" | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk 'NR>2'
}
Filter_Version () {
if [ -n "$1" ]; then
grep -m1 -oE 'v[0-9]{1,2}([.][0-9]{1,2})([.][0-9]{1,2})' "$1"
else
grep -m1 -oE 'v[0-9]{1,2}([.][0-9]{1,2})([.][0-9]{1,2})'
fi
}
Filter_Date () {
grep -m1 -oE '[0-9]{1,2}([/][0-9]{1,2})([/][0-9]{1,4})' "$1"
}
Filter_PrivateIP () {
grep -vE '(^127\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^192\.168\.)|(^0.)|(^169\.254\.)|(^22[4-9]\.)|(^23[0-9]\.)|(^255\.255\.255\.255)|(^8\.8\.8\.8)|(^8\.8\.4\.4)'
}
Filter_PrivateSRC () {
grep -E '(SRC=127\.)|(SRC=10\.)|(SRC=172\.1[6-9]\.)|(SRC=172\.2[0-9]\.)|(SRC=172\.3[0-1]\.)|(SRC=192\.168\.)|(SRC=0.)|(SRC=169\.254\.)|(SRC=22[4-9]\.)|(SRC=23[0-9]\.)|(SRC=255\.255\.255\.255)'
}
Filter_PrivateDST () {
grep -E '(DST=127\.)|(DST=10\.)|(DST=172\.1[6-9]\.)|(DST=172\.2[0-9]\.)|(DST=172\.3[0-1]\.)|(DST=192\.168\.)|(DST=0.)|(DST=169\.254\.)|(DST=22[4-9]\.)|(DST=23[0-9]\.)|(DST=255\.255\.255\.255)'
}
Save_IPSets () {
if Check_Status; then
echo "Saving Changes"
{ ipset save Skynet-Whitelist; ipset save Skynet-Blacklist; ipset save Skynet-BlockedRanges; ipset save Skynet-Master; } > "$skynetipset" 2>/dev/null
fi
}
Unban_PrivateIP () {
if [ "$unbanprivateip" != "disabled" ]; then
grep -F "INBOUND" /tmp/syslog.log | Filter_PrivateSRC | grep -oE 'SRC=[0-9,\.]*' | cut -c 5- | awk '!x[$0]++' | while IFS= read -r "ip"; do
ipset -q -A Skynet-Whitelist "$ip" comment "PrivateIP"
ipset -q -D Skynet-Blacklist "$ip"
sed -i "\\~SRC=${ip} ~d" "/tmp/syslog.log" "$skynetevents"
done
grep -F "OUTBOUND" /tmp/syslog.log | Filter_PrivateDST | grep -oE 'DST=[0-9,\.]*' | cut -c 5- | awk '!x[$0]++' | while IFS= read -r "ip"; do
ipset -q -A Skynet-Whitelist "$ip" comment "PrivateIP"
ipset -q -D Skynet-Blacklist "$ip"
sed -i "\\~DST=${ip} ~d" /tmp/syslog.log
sed -i "\\~SRC=${ip} ~d" "$skynetevents"
done
fi
}
Refresh_MBans () {
if grep -qE "Manual Ban.* TYPE=Domain" "$skynetevents"; then
grep -E "Manual Ban.* TYPE=Domain" "$skynetevents" | awk '{print $9}' | awk '!x[$0]++' | sed 's~Host=~~g' > /tmp/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"); do
ipset -q -A Skynet-Blacklist "$ip" comment "ManualBanD: $domain" && echo "$(date +"%b %d %T") Skynet: [Manual Ban] TYPE=Domain SRC=$ip Host=$domain " >> "$skynetevents"
done
done < /tmp/mbans.list
wait
rm -rf /tmp/mbans.list
fi
}
Refresh_MWhitelist () {
if grep -qE "Manual Whitelist.* TYPE=Domain" "$skynetevents"; then
grep -E "Manual Whitelist.* TYPE=Domain" "$skynetevents" | awk '{print $9}' | awk '!x[$0]++' | sed 's~Host=~~g' > /tmp/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
ipset -q -A Skynet-Whitelist "$ip" comment "ManualWlistD: $domain" && echo "$(date +"%b %d %T") Skynet: [Manual Whitelist] TYPE=Domain SRC=$ip Host=$domain " >> "$skynetevents"
done &
done < /tmp/mwhitelist.list
wait
cat /tmp/mwhitelist.list >> /jffs/shared-Skynet2-whitelist
rm -rf /tmp/mwhitelist.list
fi
}
Whitelist_Extra () {
{ echo "ipdeny.com"
echo "speedguide.net"
echo "otx.alienvault.com"
echo "raw.githubusercontent.com"
echo "iplists.firehol.org"
echo "astrill.com"
echo "strongpath.net"
echo "snbforums.com"
nvram get ntp_server0
nvram get ntp_server1
nvram get firmware_server; } | awk '!x[$0]++' > /jffs/shared-Skynet2-whitelist
}
Whitelist_CDN () {
sed '\~add Skynet-Whitelist ~!d;\~CDN-Whitelist~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
/usr/sbin/curl -fsL --retry 3 "https://raw.githubusercontent.com/Adamm00/IPSet_ASUS/master/cdn.list" | dos2unix | grep -oE '^[0-9,./]*$' | awk '!x[$0]++' > /tmp/cdn.list
awk '{print "add Skynet-Whitelist " $1 " comment \"CDN-Whitelist\""}' /tmp/cdn.list | ipset restore -!
rm -rf /tmp/cdn.list
}
Whitelist_VPN () {
ipset -q -A Skynet-Whitelist "$(nvram get vpn_server1_sn)"/24 comment "nvram: vpn_server1_sn"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_server2_sn)"/24 comment "nvram: vpn_server2_sn"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_server_sn)"/24 comment "nvram: vpn_server_sn"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_client1_addr)"/24 comment "nvram: vpn_client1_addr"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_client2_addr)"/24 comment "nvram: vpn_client2_addr"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_client3_addr)"/24 comment "nvram: vpn_client3_addr"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_client4_addr)"/24 comment "nvram: vpn_client4_addr"
ipset -q -A Skynet-Whitelist "$(nvram get vpn_client5_addr)"/24 comment "nvram: vpn_client5_addr"
if [ -f "/dev/astrill/openvpn.conf" ]; then ipset -q -A Skynet-Whitelist "$(sed '\~remote ~!d;s~remote ~~' "/dev/astrill/openvpn.conf")"/24 comment "nvram: Astrill_VPN"; fi
}
Whitelist_Shared () {
ipset -q -A Skynet-Whitelist "$(nvram get wan0_ipaddr)"/32 comment "nvram: wan0_ipaddr"
ipset -q -A Skynet-Whitelist "$(nvram get lan_ipaddr)"/24 comment "nvram: lan_ipaddr"
ipset -q -A Skynet-Whitelist "$(nvram get lan_netmask)"/24 comment "nvram: lan_netmask"
ipset -q -A Skynet-Whitelist "$(nvram get wan_dns1_x)"/32 comment "nvram: wan_dns1_x"
ipset -q -A Skynet-Whitelist "$(nvram get wan_dns2_x)"/32 comment "nvram: wan_dns2_x"
ipset -q -A Skynet-Whitelist "$(nvram get wan0_dns1_x)"/32 comment "nvram: wan0_dns1_x"
ipset -q -A Skynet-Whitelist "$(nvram get wan0_dns2_x)"/32 comment "nvram: wan0_dns2_x"
ipset -q -A Skynet-Whitelist "$(nvram get wan_dns | awk '{print $1}')"/32 comment "nvram: wan_dns"
ipset -q -A Skynet-Whitelist "$(nvram get wan_dns | awk '{print $2}')"/32 comment "nvram: wan_dns"
ipset -q -A Skynet-Whitelist "$(nvram get wan0_dns | awk '{print $1}')"/32 comment "nvram: wan0_dns"
ipset -q -A Skynet-Whitelist "$(nvram get wan0_dns | awk '{print $2}')"/32 comment "nvram: wan0_dns"
ipset -q -A Skynet-Whitelist "$(nvram get wan0_xdns | awk '{print $1}')"/32 comment "nvram: wan0_xdns"
ipset -q -A Skynet-Whitelist "$(nvram get wan0_xdns | awk '{print $2}')"/32 comment "nvram: wan0_xdns"
ipset -q -A Skynet-Whitelist 192.30.252.0/22 comment "nvram: Github Content Server"
ipset -q -A Skynet-Whitelist 192.168.1.0/24 comment "nvram: LAN Subnet"
if [ -n "$(/usr/bin/find /jffs -name 'shared-*-whitelist')" ]; then
echo "Whitelisting Shared Domains"
sed '\~add Skynet-Whitelist ~!d;\~Shared-Whitelist~!d;s~ comment.*~~;s~add~del~g' "$skynetipset" | ipset restore -!
grep -hvF "#" /jffs/shared-*-whitelist | sed 's~http[s]*://~~;s~/.*~~' | awk '!x[$0]++' | while IFS= read -r "domain"; do
for ip in $(Domain_Lookup "$domain" 2> /dev/null); do
ipset -q -A Skynet-Whitelist "$ip" comment "Shared-Whitelist: $domain"
done &
done
wait
fi
}
Manage_Device() {
echo "Looking For Available Partitions..."
i=1
IFS="
"
for mounted in $(/bin/mount | grep -E "ext2|ext3|ext4|tfat|exfat" | awk '{print $3" - ("$1")"}') ; do
echo "[$i] --> $mounted"
eval mounts$i="$(echo "$mounted" | awk '{print $1}')"
i=$((i + 1))
done
unset IFS
if [ $i = "1" ]; then
echo "No Compatible ext* USB Partitions Found - Exiting!"
exit 1
fi
Select_Device(){
echo
echo "Please Enter Partition Number Or e To Exit"
printf "[0-%s]: " "$((i - 1))"
read -r "partitionNumber"
echo
if [ "$partitionNumber" = "e" ] || [ "$partitionNumber" = "exit" ]; then
echo "Exiting!"
echo
exit 0
elif [ -z "$partitionNumber" ] || [ "$partitionNumber" -gt $((i - 1)) ] 2>/dev/null || [ "$partitionNumber" = "0" ]; then
echo "Invalid Partition Number!"
Select_Device
elif [ "$partitionNumber" -eq "$partitionNumber" ] 2>/dev/null;then
true
else
echo "$partitionNumber Isn't An Option!"
Select_Device
fi
}
Select_Device
device=""
eval device=\$mounts"$partitionNumber"
touch "${device}/rwtest"
if [ ! -w "${device}/rwtest" ]; then
echo "Writing To $device Failed - Exiting!"
Manage_Device
else
rm -rf "${device}/rwtest"
fi
}
Create_Swap() {
while true; do
echo "Select SWAP File Size:"
echo "[1] --> 256MB"
echo "[2] --> 512MB"
echo "[3] --> 1GB"
echo "[4] --> 2GB"
echo
echo "[e] --> Exit Menu"
echo
printf "[1-4]: "
read -r "menu"
echo
case "$menu" in
1)
swapsize=262144
break
;;
2)
swapsize=524288
break
;;
3)
swapsize=1048576
break
;;
4)
swapsize=2097152
break
;;
e|exit)
echo "Exiting!"
echo
exit 0
;;
*)
echo "$menu Isn't An Option!"
echo
;;
esac
done
if [ -f "${device}/myswap.swp" ]; then swapoff "${device}/myswap.swp" 2>/dev/null; rm -rf "${device}/myswap.swp"; fi
if [ "$(df $device | xargs | awk '{print $11}')" -le "$swapsize" ]; then echo "Not Enough Free Space Available On $device"; Create_Swap; fi
echo "Creating SWAP File..."
dd if=/dev/zero of="${device}/myswap.swp" bs=1k count="$swapsize"
mkswap "${device}/myswap.swp"
swapon "${device}/myswap.swp"
echo "swapon ${device}/myswap.swp # Skynet Firewall Addition" >> /jffs/scripts/post-mount
echo "SWAP File Located At ${device}/myswap.swp"
echo
}
Purge_Logs () {
sed '\~BLOCKED -~!d' /tmp/syslog.log-1 /tmp/syslog.log 2>/dev/null >> "$skynetlog"
sed -i '\~BLOCKED -~d' /tmp/syslog.log-1 /tmp/syslog.log 2>/dev/null
if [ "$(du "$skynetlog" | awk '{print $1}')" -ge "10240" ]; then
sed -i '\~BLOCKED -~d' "$skynetlog"
sed -i '\~Skynet: \[Complete\]~d' "$skynetevents"
if [ "$(du "$skynetlog" | awk '{print $1}')" -ge "3000" ]; then
true > "$skynetlog"
fi
fi
if [ "$1" = "all" ] || [ "$(grep -c "Skynet: \\[Complete\\]" "/tmp/syslog.log" 2>/dev/null)" -gt "24" ] 2>/dev/null; then
sed '\~Skynet: \[Complete\]~!d' /tmp/syslog.log-1 /tmp/syslog.log 2>/dev/null >> "$skynetevents"
sed -i '\~Skynet: \[Complete\]~d' /tmp/syslog.log-1 /tmp/syslog.log 2>/dev/null
fi
}
Logging () {
oldips="$blacklist1count"
oldranges="$blacklist2count"
blacklist1count="$(grep -Foc "add Skynet-Black" "$skynetipset" 2> /dev/null)"
blacklist2count="$(grep -Foc "add Skynet-Block" "$skynetipset" 2> /dev/null)"
if Check_Status; then
if [ "$filtertraffic" != "outbound" ]; then
hits1="$(iptables -xnvL PREROUTING -t raw | grep -Fv "LOG" | grep -F "Skynet-Master src" | awk '{print $1}')"
else
hits1="0"
fi
if [ "$filtertraffic" != "inbound" ]; then
hits2="$(($(iptables -xnvL PREROUTING -t raw | grep -Fv "LOG" | grep -F "Skynet-Master dst" | awk '{print $1}')+$(iptables -xnvL OUTPUT -t raw | grep -Fv "LOG" | grep -F "Skynet-Master dst" | awk '{print $1}')))"
else
hits2="0"
fi
fi
ftime="$(($(date +%s) - stime))"
if [ "$1" = "minimal" ]; then
$grn "$blacklist1count IPs / $blacklist2count Ranges Banned. $((blacklist1count - oldips)) New IPs / $((blacklist2count - oldranges)) New Ranges Banned. $hits1 Inbound / $hits2 Outbound Connections Blocked!"
else
logger -st Skynet "[Complete] $blacklist1count IPs / $blacklist2count Ranges Banned. $((blacklist1count - oldips)) New IPs / $((blacklist2count - oldranges)) New Ranges Banned. $hits1 Inbound / $hits2 Outbound Connections Blocked! [$1] [${ftime}s]"
fi
}
Upgrade_v6 () {
# Set Locations
skynetloc="${device}/skynet"
skynetcfg="${device}/skynet/skynet.cfg"
skynetlog="${device}/skynet/skynet.log"
skynetevents="${device}/skynet/events.log"
skynetipset="${device}/skynet/skynet.ipset"
# Rename/Move files
mv "${location}/scripts/ipset.txt" "$skynetipset"
mv "${location}/skynet.log" "$skynetlog"
if [ "$forceupgrade" = "1" ]; then rm -rf "${location}/scripts"; fi
# Convert ipset.txt
sed -i 's~^create Whitelist ~create Skynet-Whitelist ~g' "$skynetipset"
sed -i 's~^add Whitelist ~add Skynet-Whitelist ~g' "$skynetipset"
sed -i 's~^create Blacklist ~create Skynet-Blacklist ~g' "$skynetipset"
sed -i 's~^add Blacklist ~add Skynet-Blacklist ~g' "$skynetipset"
sed -i 's~^create BlockedRanges ~create Skynet-BlockedRanges ~g' "$skynetipset"
sed -i 's~^add BlockedRanges ~add Skynet-BlockedRanges ~g' "$skynetipset"
sed -i 's~^create Skynet ~create Skynet-Master ~g' "$skynetipset"
sed -i 's~^add Skynet Blacklist~add Skynet-Master Skynet-Blacklist~g' "$skynetipset"
sed -i 's~^add Skynet BlockedRanges~add Skynet-Master Skynet-BlockedRanges~g' "$skynetipset"
# Convert skynet.log
sed '\~BLOCKED -~d' "$skynetlog" > "$skynetevents"
sed -i '\~BLOCKED -~!d' "$skynetlog"
# Convert countrylist and customlisturl
countrylist="$(grep -m1 -F "Country:" "$skynetipset" | sed 's~.*Country: ~~;s~"~~')"
customlisturl="$(grep -F "New Banmalware Filter" "$skynetevents" | sed 's~.*New Banmalware Filter.*URL=~~g')"
sed -i '\~New Banmalware Filter~d' "$skynetevents"
}
Write_Config () {
{ echo "## Generated By Skynet - Do Not Manually Edit ##"
echo "## $(date +"%b %d %T") ##"
echo
echo "## Installer ##"
echo "model=\"$model\""
echo "localver=\"$localver\""
echo "autoupdate=\"$autoupdate\""
echo "banmalwareupdate=\"$banmalwareupdate\""
echo "forcebanmalwareupdate=\"$forcebanmalwareupdate\""
echo "debugmode=\"$debugmode\""
echo "filtertraffic=\"$filtertraffic\""
echo
echo "## Other ##"
echo "blacklist1count=\"$blacklist1count\""
echo "blacklist2count=\"$blacklist2count\""
echo "customlisturl=\"$customlisturl\""
echo "countrylist=\"$countrylist\""
echo "excludelists=\"$excludelists\""
echo "unbanprivateip=\"$unbanprivateip\""
echo "loginvalid=\"$loginvalid\""; } > "$skynetcfg"
}
####################################################################################################################################################
# - unban / ban / banmalware / whitelist / import / deport / save / start / restart / disable / update / debug / stats / install / uninstall - #
####################################################################################################################################################
Load_Menu () {
. "$skynetcfg"
echo "Router Model; $model"
echo "Skynet Version; $localver ($(Filter_Date "$0"))"
echo "$(iptables --version) - ($iface @ $(nvram get lan_ipaddr))"
ipset -v
echo "FW Version; $(nvram get buildno)_$(nvram get extendno) ($(uname -v | awk '{print $5" "$6" "$9}')) ($(uname -r))"
echo "Install Dir; $skynetloc ($(df -h $skynetloc | xargs | awk '{print $11 " / " $9}') Space Available)"
if grep -F "swapon" /jffs/scripts/post-mount 2>/dev/null | grep -qvE "^#"; then swaplocation="$(grep -o "swapon .*" /jffs/scripts/post-mount | grep -vE "^#" | awk '{print $2}')"; echo "SWAP File; $swaplocation ($(du -h "$swaplocation" | awk '{print $1}'))"; fi
echo "Boot Args; $(grep -E "start.* # Skynet" /jffs/scripts/firewall-start 2>/dev/null | grep -vE "^#" | cut -c 4- | cut -d '#' -f1)"
if [ -n "$countrylist" ]; then echo "Banned Countries; $countrylist"; fi
if [ -f "/tmp/skynet.lock" ] && [ -d "/proc/$(sed -n '2p' /tmp/skynet.lock)" ]; then $red "Lock File Detected ($(sed -n '1p' /tmp/skynet.lock)) (pid=$(sed -n '2p' /tmp/skynet.lock))"; lockedwarning=1; fi
if [ -n "$lockedwarning" ]; then $ylow "Locked Processes Generally Take 20-60s To Complete And May Result In Temporarily \"Failed\" Tests"; fi
unset "lockedwarning"
echo
if ! grep -E "start.* # Skynet" /jffs/scripts/firewall-start 2>/dev/null | grep -qvE "^#"; then printf "Checking Firewall-Start Entry... "; $red "[Failed]"; fi
if ! iptables -t raw -C PREROUTING -i "$iface" -m set ! --match-set Skynet-Whitelist src -m set --match-set Skynet-Master src -j DROP 2>/dev/null && [ "$filtertraffic" != "outbound" ]; then printf "Checking Inbound Filter Rules... "; $red "[Failed]"; nolog="1"; fi
if ! iptables -t raw -C PREROUTING -i br0 -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null || \
! iptables -t raw -C OUTPUT -m set ! --match-set Skynet-Whitelist dst -m set --match-set Skynet-Master dst -j DROP 2>/dev/null && [ "$filtertraffic" != "inbound" ]; then printf "Checking Outbound Filter Rules... "; $red "[Failed]"; nolog="1"; fi
if ! ipset -L -n Skynet-Whitelist >/dev/null 2>&1; then printf "Checking Whitelist IPSet... "; $red "[Failed]"; nolog="1"; fi
if ! ipset -L -n Skynet-BlockedRanges >/dev/null 2>&1; then printf "Checking BlockedRanges IPSet... "; $red "[Failed]"; nolog="1"; fi
if ! ipset -L -n Skynet-Blacklist >/dev/null 2>&1; then printf "Checking Blacklist IPSet... "; $red "[Failed]"; nolog="1"; fi
if ! ipset -L -n Skynet-Master >/dev/null 2>&1; then printf "Checking Skynet IPSet... "; $red "[Failed]"; nolog="1"; fi
if [ "$nolog" != "1" ]; then Logging "minimal"; fi
unset "nolog"
unset "option1" "option2" "option3" "option4" "option5"
reloadmenu="1"
Purge_Logs
echo
while true; do
echo "Select Menu Option:"
echo "[1] --> Unban"
echo "[2] --> Ban"
echo "[3] --> Banmalware"
echo "[4] --> Whitelist"
echo "[5] --> Import IP List"
echo "[6] --> Deport IP List"
echo "[7] --> Save"
echo "[8] --> Restart Skynet"
echo "[9] --> Temporarily Disable Skynet"
echo "[10] --> Update Skynet"
echo "[11] --> Debug Options"
echo "[12] --> Stats"
echo "[13] --> Install Skynet / Change Boot Options"
echo "[14] --> Uninstall"
echo
echo "[r] --> Reload Menu"
echo "[e] --> Exit Menu"
echo
printf "[1-14]: "
read -r "menu"
echo
case "$menu" in
1)
if ! Check_Status; then echo "Skynet Not Running - Aborting"; echo; Load_Menu; break; fi
option1="unban"
while true; do
echo "What Type Of Input Would You Like To Unban:"
echo "[1] --> IP"
echo "[2] --> Range"
echo "[3] --> Domain"
echo "[4] --> Comment"
echo "[5] --> Country"
echo "[6] --> Malware"
echo "[7] --> Non Manual Bans"
echo "[8] --> All"
echo
printf "[1-10]: "
read -r "menu2"
echo
case "$menu2" in
1)
option2="ip"
echo "Input IP To Unban:"
echo
printf "[IP]: "
read -r "option3"
echo
if ! echo "$option3" | Is_IP; then echo "$option3 Is Not A Valid IP"; echo; unset "option2" "option3"; continue; fi
break
;;
2)
option2="range"
echo "Input Range To Unban:"
echo
printf "[Range]: "
read -r "option3"
echo
if ! echo "$option3" | Is_Range; then echo "$option3 Is Not A Valid Range"; echo; unset "option2" "option3"; continue; fi
break
;;
3)
option2="domain"
echo "Input Domain To Unban:"
echo
printf "[URL]: "
read -r "option3"
echo
if [ -z "$option3" ]; then echo "URL Field Can't Be Empty - Please Try Again"; echo; unset "option2" "option3"; continue; fi
break
;;
4)
option2="comment"
echo "Remove Bans Matching Comment:"
echo
printf "[Comment]: "
read -r "option3"
echo
if [ "${#option3}" -gt "255" ]; then echo "$option3 Is Not A Valid Comment. 255 Chars Max"; echo; unset "option2" "option3"; continue; fi
break
;;
5)
option2="country"
break
;;
6)
option2="malware"
break
;;
7)
option2="nomanual"
break
;;
8)
option2="all"
break
;;
e|exit|back|menu)
unset "option1" "option2" "option3" "option4" "option5"
clear
Load_Menu
break
;;
*)
echo "$menu2 Isn't An Option!"
echo
;;
esac
done
break
;;
2)
if ! Check_Status; then echo "Skynet Not Running - Aborting"; echo; Load_Menu; break; fi
option1="ban"
while true; do
echo "What Type Of Input Would You Like To Ban:"
echo "[1] --> IP"
echo "[2] --> Range"
echo "[3] --> Domain"
echo "[4] --> Country"
echo
printf "[1-4]: "
read -r "menu2"
echo
case "$menu2" in
1)
option2="ip"
echo "Input IP To Ban:"
echo
printf "[IP]: "
read -r "option3"
echo
if ! echo "$option3" | Is_IP; then echo "$option3 Is Not A Valid IP"; echo; unset "option2" "option3"; continue; fi
echo "Input Comment For Ban:"
echo
printf "[Comment]: "
read -r "option4"
echo
if [ "${#option4}" -gt "244" ]; then echo "$option4 Is Not A Valid Comment. 244 Chars Max"; echo; unset "option2" "option3" "option4"; continue; fi
break
;;
2)
option2="range"
echo "Input Range To Ban:"
echo
printf "[Range]: "
read -r "option3"
echo
if ! echo "$option3" | Is_Range; then echo "$option3 Is Not A Valid Range"; echo; unset "option2" "option3"; continue; fi
echo "Input Comment For Ban:"
echo
printf "[Comment]: "
read -r "option4"
echo
if [ "${#option4}" -gt "243" ]; then echo "$option3 Is Not A Valid Comment. 243 Chars Max"; echo; unset "option2" "option3" "option4"; continue; fi
break
;;
3)
option2="domain"
echo "Input Domain To Ban:"
echo
printf "[URL]: "
read -r "option3"
echo
if [ -z "$option3" ]; then echo "URL Field Can't Be Empty - Please Try Again"; echo; unset "option2" "option3"; continue; fi
break
;;
4)
option2="country"
echo "Input Country Abbreviations To Ban:"
echo
printf "[Countries]: "
read -r "option3"
echo
if [ -z "$option3" ]; then echo "Country Field Can't Be Empty - Please Try Again"; echo; unset "option2" "option3"; continue; fi
break
;;
e|exit|back|menu)
unset "option1" "option2" "option3" "option4" "option5"
clear
Load_Menu
break
;;
*)
echo "$menu2 Isn't An Option!"
echo
;;
esac
done
break
;;
3)
if ! Check_Status; then echo "Skynet Not Running - Aborting"; echo; Load_Menu; break; fi
option1="banmalware"
while true; do
echo "Select Option:"
echo "[1] --> Update"
echo "[2] --> Change Filter List"
echo "[3] --> Reset Filter List"
echo "[4] --> Exclude Individual Lists"
echo "[5] --> Reset Exclusion List"
echo
printf "[1-5]: "
read -r "menu2"
echo
case "$menu2" in
1)
break
;;
2)
echo "Input Custom Filter List URL:"
printf "[URL]: "
read -r "option2"
echo
if [ -z "$option2" ]; then echo "URL Field Can't Be Empty - Please Try Again"; echo; unset "option2"; continue; fi
break
;;
3)
option2="reset"
break
;;
4)
option2="exclude"
echo "Input Names Of Lists To Exclude Seperated By Pipes"
echo "Example - list1.ipset|list2.ipset|list3.ipset"
echo
printf "[Lists]: "
read -r "option3"
echo
if [ -z "$option3" ]; then echo "Exclusion List Can't Be Empty - Please Try Again"; echo; unset "option2" "option3"; continue; fi
break
;;
5)
option2="exclude"
option3="reset"
break
;;
e|exit|back|menu)
unset "option1" "option2" "option3" "option4" "option5"
clear
Load_Menu
break
;;
*)
echo "$menu2 Isn't An Option!"
echo
;;
esac
done
break
;;
4)
if ! Check_Status; then echo "Skynet Not Running - Aborting"; echo; Load_Menu; break; fi
option1="whitelist"
while true; do
echo "Select Whitelist Option:"
echo "[1] --> IP/Range"
echo "[2] --> Domain"
echo "[3] --> Refresh VPN Whitelist"
echo "[4] --> Remove Entries"
echo "[5] --> Refresh Entries"
echo "[6] --> List Entries"
echo
printf "[1-7]: "
read -r "menu2"
echo
case "$menu2" in
1)
option2="ip"
echo "Input IP Or Range To Whitelist:"
echo
printf "[IP/Range]: "
read -r "option3"
echo
if ! echo "$option3" | Is_IP && ! echo "$option3" | Is_Range ; then echo "$option3 Is Not A Valid IP/Range"; echo; unset "option2" "option3"; continue; fi
echo "Input Comment For Whitelist:"
echo
printf "[Comment]: "
read -r "option4"
echo
if [ "${#option4}" -gt "242" ]; then echo "$option4 Is Not A Valid Comment. 242 Chars Max"; echo; unset "option2" "option3" "option4"; continue; fi
break
;;
2)
option2="domain"
echo "Input Domain To Whitelist:"
echo
printf "[URL]: "
read -r "option3"
echo
if [ -z "$option3" ]; then echo "URL Field Can't Be Empty - Please Try Again"; echo; unset "option2" "option3"; continue; fi
break
;;
3)
option2="vpn"
break
;;
4)
option2="remove"
while true; do
echo "Remove From Whitelist:"
echo "[1] --> All Non-Default Entries"
echo "[2] --> IP/Range"
echo "[3] --> Entries Matching Comment"
echo
printf "[1-3]: "
read -r "menu3"
echo
case "$menu3" in
1)
option3="all"
break
;;
2)
option3="entry"
echo "Input IP Or Range To Remove:"
echo
printf "[IP/Range]: "
read -r "option4"
echo
if ! echo "$option4" | Is_IP && ! echo "$option4" | Is_Range ; then echo "$option4 Is Not A Valid IP/Range"; echo; unset "option3" "option4"; continue; fi
break
;;
3)
option3="comment"
echo "Remove Entries Based On Comment:"
echo
printf "[Comment]: "
read -r "option4"
echo
if [ "${#option4}" -gt "255" ]; then echo "$option4 Is Not A Valid Comment. 255 Chars Max"; echo; unset "option3" "option4"; continue; fi
break
;;
e|exit|back|menu)
unset "option1" "option2" "option3" "option4" "option5"
clear
Load_Menu
break
;;
*)
echo "$menu3 Isn't An Option!"
echo
;;
esac
done
break
;;
5)