tools iptables script revision, bridge from ethernet

1 files changed, 200 insertions, 137 deletions

diff --git a/tools/conf/etc/iptables/iptables-br.sh b/tools/conf/etc/iptables/iptables-br.sh
index 104e574..25a3331 100644
--- a/tools/conf/etc/iptables/iptables-br.sh
+++ b/tools/conf/etc/iptables/iptables-br.sh
@@ -147,16 +147,14 @@ IPT="/usr/sbin/iptables"
 SPAMLIST="blockedip"
 SPAMDROPMSG="BLOCKED IP DROP"
 # public interface to network/internet
-PUB_IF="wlp7s0"
-DHCP_SERV="192.168.1.1"
-PUB_IP="192.168.1.33"
-NET_ADDR="192.168.1.0/24"
+#PUB_IF="wlp7s0"
+PUB_IF="br0"
+PUB_IP="10.0.0.254"
+NET_ADDR="10.0.0.0/8"
+GW="10.0.0.1"
 # private interface for virtual/internal
-PRIV_IF="br0"
-PRIV_IP="10.0.0.1"
-
-modprobe ip_conntrack
-modprobe ip_conntrack_ftp
+PRIV_IF="wlp7s0"
+PRIV_IP="192.168.1.33"
 
 echo "Stopping ipv4 firewall and deny everyone..."
 
@@ -170,149 +168,214 @@ iptables -t raw -F
 iptables -t raw -X
 iptables -t security -F
 iptables -t security -X
+iptables -N blocker
 
-
-echo "Starting ipv4 firewall filter table..."
+iptables -N netconf_in
+iptables -N netconf_out
+iptables -N server_in
+iptables -N server_out
+iptables -N client_in
+iptables -N client_out
 
 # Set Default Rules
 iptables -P INPUT DROP
 iptables -P FORWARD DROP
 iptables -P OUTPUT DROP
 
-###### AP rules  ######
-echo 1 > /proc/sys/net/ipv4/ip_forward
-$IPT -A FORWARD -i ${PRIV_IF} -o ${PUB_IF} -j ACCEPT
-$IPT -A FORWARD -i ${PUB_IF} -o ${PRIV_IF} -j ACCEPT
-$IPT -t nat -A POSTROUTING -o ${PUB_IF} -j SNAT --to ${PUB_IP}
-
-# Block sync
-$IPT -A INPUT -p tcp ! --syn -m state --state NEW -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 7 --log-prefix "iptables: drop sync: "
-$IPT -A INPUT -p tcp ! --syn -m state --state NEW -j DROP
-
-# Block Fragments
-$IPT -A INPUT -f -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop frag: "
-$IPT -A INPUT -f -j DROP
-
-# Block bad stuff
-$IPT -A INPUT -p tcp --tcp-flags ALL FIN,URG,PSH -j DROP
-$IPT -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
-
-$IPT -A INPUT -p tcp --tcp-flags ALL NONE -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop null: "
-$IPT -A INPUT -p tcp --tcp-flags ALL NONE -j DROP # NULL packets
-
-$IPT -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop syn rst syn rst: "
-$IPT -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP
-
-$IPT -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop xmas: "
-$IPT -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP #XMAS
-
-$IPT -A INPUT -p tcp --tcp-flags FIN,ACK FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop fin scan: "
-$IPT -A INPUT -p tcp --tcp-flags FIN,ACK FIN -j DROP # FIN packet scans
-
-$IPT -A INPUT -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP
-
-
-###### Input Chain ######
-
-# Unlimited on local
-$IPT -A INPUT -i ${PRIV_IF} -j ACCEPT
-#$IPT -A INPUT -i lo -s ${PRIV_IP} -j ACCEPT
-
+echo "Starting ipv4 firewall tables..."
 # Unlimited on loopback
 $IPT -A INPUT -i lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
-$IPT -A INPUT -i lo -s 192.168.1.33 -d 192.168.1.33 -j ACCEPT
-
-echo "Allow input from DNS Server"
-$IPT -A INPUT -i ${PUB_IF} -p udp --dport 1024:65535 --sport 53 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input from Https server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-$IPT -A INPUT -i ${PUB_IF} -p udp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input to HTTPS Server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-#echo "Allow input from HTTP Server"
-#$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input from IRC server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 1024:65535 --sport 6667 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input from FTP server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 1024:65535 --sport 21 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input from git server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 9418 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input from POP3S server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 995 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input from SMTPS server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-
-echo "Allow input to HTTP Server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-#echo "Allow input to DNS Server"
-#$IPT -A INPUT -i ${PUB_IF} -p udp --sport 1024:65535 --dport 53  -m state --state NEW,ESTABLISHED -s 192.168.0.0/16 -j ACCEPT
-
-echo "Allow input to SSH server"
-$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-###### Output Chain ######
-
-# Unlimited on loopback
 $IPT -A OUTPUT -o lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
-$IPT -A OUTPUT -o lo -s 192.168.1.33 -d 192.168.1.33 -j ACCEPT
-#$IPT -A OUTPUT -o lo -d ${PRIV_IP} -j ACCEPT
-
-# Unlimited on local
-$IPT -A OUTPUT -o ${PRIV_IF} -j ACCEPT
-
-echo "Allow output to DNS server"
-$IPT -A OUTPUT -o ${PUB_IF} -p udp --dport 53 --sport 1024:65535 -j ACCEPT
-
-echo "Allow output to https server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT
-$IPT -A OUTPUT -o ${PUB_IF} -p udp --sport 1024:65535 --dport 443  -j ACCEPT
-
-echo "Allow output from https server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 443 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-
-#echo "Allow output from http server"
-#$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 80 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-
-#echo "Allow to HTTP server"
-#$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-echo "Allow output to SSH server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 2222 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-echo "Allow output to ftp server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-echo "Allow output to git server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 9418 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-echo "Allow output to IRC  server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 6667 -m state --state NEW,ESTABLISHED -j ACCEPT
 
-echo "Allow output to SMTPS server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 465 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+#modprobe ip_conntrack
+#modprobe ip_conntrack_ftp
+#echo 1 > /proc/sys/net/ipv4/ip_forward
+
+####### blocker Chain  ######
+## Block google dns
+$IPT -A blocker -s 8.8.0.0/24 -j LOG --log-level 7 --log-prefix "iptables: blocker google: "
+$IPT -A blocker -s 8.8.0.0/24 -j DROP
+## Block sync
+$IPT -A blocker -p tcp ! --syn -m state --state NEW -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 7 --log-prefix "iptables: drop sync: "
+$IPT -A blocker -p tcp ! --syn -m state --state NEW -j DROP
+## Block Fragments
+$IPT -A blocker -f -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop frag: "
+$IPT -A blocker -f -j DROP
+
+$IPT -A blocker -p tcp --tcp-flags ALL FIN,URG,PSH -j DROP
+$IPT -A blocker -p tcp --tcp-flags ALL ALL -j DROP
+
+$IPT -A blocker -p tcp --tcp-flags ALL NONE -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop null: "
+$IPT -A blocker -p tcp --tcp-flags ALL NONE -j DROP # NULL packets
+
+$IPT -A blocker -p tcp --tcp-flags SYN,RST SYN,RST -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop syn rst syn rst: "
+$IPT -A blocker -p tcp --tcp-flags SYN,RST SYN,RST -j DROP
+
+$IPT -A blocker -p tcp --tcp-flags SYN,FIN SYN,FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop xmas: "
+$IPT -A blocker -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP #XMAS
+
+$IPT -A blocker -p tcp --tcp-flags FIN,ACK FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop fin scan: "
+$IPT -A blocker -p tcp --tcp-flags FIN,ACK FIN -j DROP # FIN packet scans
+
+$IPT -A blocker -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP
+## Return to caller
+$IPT -A blocker -j RETURN
+
+####### server input Chain  ######
+echo "server_in chain: Allow to SSH server"
+$IPT -A server_in -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "server_in chain: Allow input to HTTPS Server"
+$IPT -A server_in -p tcp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+#echo "server_in chain: Allow input to HTTP Server"
+#$IPT -A server_in -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "server_in chain: Allow input to DNS Server"
+$IPT -A server_in -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+$IPT -A server_in -p tcp --dport 53 --sport 1024:65535  -m state --state NEW,ESTABLISHED -j ACCEPT
+
+## Return to caller
+$IPT -A server_in -j RETURN
+
+####### server output Chain  ######
+echo "server_out chain: Allow output from DNS server"
+$IPT -A server_out -p udp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
+$IPT -A server_out -p tcp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
+echo "server_out chain: Allow output from https server"
+$IPT -A server_out -p tcp --sport 443 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
+#echo "server_out chain: Allow output from http server"
+#$IPT -A server_out -p tcp --sport 80 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
+echo "server_out chain: Allow output from SSH server"
+$IPT -A server_out -p tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+
+## Return to caller
+$IPT -A server_out -j RETURN
+
+####### client input Chain  ######
+echo "client_in chain: Allow input from IRC server"
+$IPT -A client_in -p tcp --sport 6667 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from FTP server"
+$IPT -A client_in -p tcp --sport 21 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from GIT server"
+$IPT -A client_in -p tcp --sport 9418 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from POP3S server"
+$IPT -A client_in -p tcp --sport 995 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from SMTPS server"
+$IPT -A client_in -p tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+#echo "client_in chain: Allow input from HTTP Server"
+#$IPT -A client_in -p tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from HTTPS server"
+$IPT -A client_in -p tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+#$IPT -A client_in -p udp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from DNS Server"
+$IPT -A client_in -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+echo "client_in chain: Allow input from SSH Server"
+$IPT -A client_in -p udp --sport 22 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+$IPT -A client_in -p udp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
+
+## Return to caller
+$IPT -A client_in -j RETURN
+
+####### client output Chain  ######
+echo "client_out chain: Allow output to IRC  server"
+$IPT -A client_out -p tcp --dport 6667 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to FTP server"
+$IPT -A client_out -p tcp --dport 21 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to GIT server"
+$IPT -A client_out -p tcp --dport 9418 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to POP3S server"
+$IPT -A client_out -p tcp --dport 995 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to SMTPS server"
+$IPT -A client_out -p tcp --dport 465 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to HTTPS server"
+$IPT -A client_out -p tcp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+#$IPT -A client_out -p udp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+##echo "Allow to HTTP server"
+#$IPT -A client_out -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to DNS server"
+$IPT -A client_out -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+echo "client_out chain: Allow output to SSH server"
+$IPT -A client_out -p tcp --dport 22 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+$IPT -A client_out -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
+
+## Return to caller
+$IPT -A client_out -j RETURN
+
+
+####### netconf input Chain  ######
+echo "netconf_in chain: Allow DHCP protocol"
+$IPT -A netconf_in -p udp --sport 68 --dport 67 -j ACCEPT
+echo "netconf_in chain: Allow RIP protocol for ${NET_ADDR}"
+$IPT -A netconf_in -p udp --sport 520 --dport 520 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
+#echo "netconf chain: Allow ICMP from ${NET_ADDR}"
+#$IPT -A netconf_in -p icmp -s ${NET_ADDR} -j ACCEPT
+echo "netconf_in chain: Allow ICMP from all"
+$IPT -A netconf_in -p icmp -j LOG --log-level 7 --log-prefix "iptables: netconf_in ICMP: "
+$IPT -A netconf_in -p icmp -j ACCEPT
+
+## Return to caller
+$IPT -A netconf_in -j RETURN
+
+
+####### netconf output Chain  ######
+echo "netconf_out chain: Allow output from DHCP server"
+$IPT -A netconf_out -p udp --sport 67 --dport 68 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
+echo "netconf_out chain: Allow RIP protocol for ${NET_ADDR}"
+$IPT -A netconf_out -p udp --sport 520 --dport 520 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
+#echo "netconf chain: Allow ICMP output to ${NET_ADDR}"
+#$IPT -A netconf_out -p icmp -d ${NET_ADDR} -j ACCEPT
+echo "netconf chain: Allow ICMP output to all"
+$IPT -A netconf_out -p icmp -j LOG --log-level 7 --log-prefix "iptables: netconf_out ICMP: "
+$IPT -A netconf_out -p icmp -j ACCEPT
+
+## Return to caller
+$IPT -A netconf_out -j RETURN
+
+####### AP rules  ######
+$IPT -A FORWARD -j blocker
+#$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -s ${NET_ADDR} -d ${NET_ADDR}  -j ACCEPT
+$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -d ${NET_ADDR} -j netconf_in
+$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -d ${NET_ADDR} -j netconf_out
+$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -d ${NET_ADDR} -j client_in
+$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -s ${NET_ADDR} -j client_out
+#$IPT -t nat -A POSTROUTING -o ${PUB_IF} -j SNAT --to ${PUB_IP}
+
+####### Input Chain ######
+$IPT -A INPUT -j blocker
+$IPT -A INPUT -i ${PUB_IF} -j server_in
+$IPT -A INPUT -i ${PUB_IF} -j client_in
+$IPT -A INPUT -i ${PUB_IF} -j netconf_in
+
+####### Output Chain ######
+$IPT -A OUTPUT -j blocker
+$IPT -A OUTPUT -o ${PUB_IF} -j server_out
+$IPT -A OUTPUT -o ${PUB_IF} -j client_out
+$IPT -A OUTPUT -o ${PUB_IF} -j netconf_out
 
-echo "Allow output to POP3S server"
-$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 995 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-## less logs
-
-echo "Drop RIP protocol"
-$IPT -A INPUT -i ${PUB_IF} -p udp --sport 520 --dport 520 -s $NET_ADDR -j DROP
-
-$IPT -A OUTPUT -o ${PUB_IF} -p udp --sport 68 --dport 67 -d $DHCP_SERV -j ACCEPT
 
 ## log everything else and drop
 $IPT -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: "
 $IPT -A OUTPUT -j LOG --log-level 7 --log-prefix "iptables: OUTPUT: "
 $IPT -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: "
-#
+
 exit 0
+
+#$IPT -A FORWARD -i ${PUB_IF} -o ${PRIV_IF} -s ${NET_ADDR} -j ACCEPT
+#$IPT -A FORWARD -i ${PRIV_IF} -o ${PUB_IF} -d ${NET_ADDR} -j ACCEPT
+#$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -p udp --sport 68 --dport 67 -j ACCEPT
+#$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF}  -p udp --sport 520 --dport 520 -j ACCEPT
+#
+## You Dirty bitch
+#$IPT -A FORWARD -i ${PUB_IF} -o ${PUB_IF} -s ${NET_ADDR} -d ${NET_ADDR}  -j ACCEPT
+
+## Unlimited on loopback
+#$IPT -A OUTPUT -o lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT
+##$IPT -A OUTPUT -o lo -d ${PRIV_IP} -j ACCEPT
+#
+## Unlimited on local
+#$IPT -A OUTPUT -o ${PRIV_IF} -j ACCEPT
+#
+### less logs
+#
+
+#echo "Allow output DHCP protocol"
+#$IPT -A OUTPUT -o ${PUB_IF} -p udp --sport 68 --dport 67 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
+