#!/bin/sh
# network	: ipv4.ipv4.ipv4.ipv4/mask || dns/mask
# clients	: PROTO ; PORT ; UID/GID ; UID/GID ; UID/GID .... |
# servers	: PROTO ; PORT ; UID/GID ; UID/GID ; UID/GID .... |
local network="0.0.0.0/0"

# ruleOut	: iptables -t filter -A OUTPUT   -o ""$eth"" -j ""$rulesOut""
# ruleIn	: iptables -t filter -A INPUT    -i ""$eth"" -j ""$rulesIn""
# dropOut	: iptables -t filter -A OUTPUT   -o ""$eth"" -j ""$rulesOut""
# dropIn	: iptables -t filter -A INPUT    -i ""$eth"" -j ""$rulesIn""

# icmp (echo-reply:0/0, echo-request:8/0)
local  icmpIn="$icmpIn	;icmp	| -p icmp --icmp-type 8/0 -m state --state ESTABLISHED,RELATED,NEW"
local icmpOut="$icmpOut	;icmp	| -p icmp --icmp-type 0/0 -m state --state ESTABLISHED,RELATED"
local  icmpIn="$icmpIn	;icmp	| -p icmp --icmp-type 0/0 -m state --state ESTABLISHED,RELATED"
local icmpOut="$icmpOut	;icmp	| -p icmp --icmp-type 8/0 -m state --state ESTABLISHED,RELATED,NEW"
# icmp (host-unreachable:3/1, port-unreachable:3/3, fragmentation-needed:3/4)
local icmpOut="$icmpOut	;icmp	| -p icmp --icmp-type 3/1 -m state --state ESTABLISHED,RELATED,NEW"
local  icmpIn="$icmpIn	;icmp	| -p icmp --icmp-type 3/1 -m state --state ESTABLISHED,RELATED,NEW"
local icmpOut="$icmpOut	;icmp	| -p icmp --icmp-type 3/3 -m state --state ESTABLISHED,RELATED,NEW"
local  icmpIn="$icmpIn	;icmp	| -p icmp --icmp-type 3/3 -m state --state ESTABLISHED,RELATED,NEW"
local icmpOut="$icmpOut	;icmp	| -p icmp --icmp-type 3/4 -m state --state ESTABLISHED,RELATED,NEW"
local  icmpIn="$icmpIn	;icmp	| -p icmp --icmp-type 3/4 -m state --state ESTABLISHED,RELATED,NEW"

# DROP
# drop samba protocole (netbios-dgm:138)
#local  dropIn="$dropIn  ;drop_dhcp	| -d "$net" -s "$net"	-p udp --sport netbios-dgm	--dport netbios-dgm	-m state --state NEW"
#local  dropIn="$dropIn  ;drop_dhcp	| -d "$net" -s "$net"	-p udp --sport netbios-ns	--dport netbios-ns	-m state --state NEW"