1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipt v5.0.2.3596
#
# Generated Sun Mar 18 21:31:01 2012 PDT by vadim
#
# files: * rc.firewall.local /etc/rc.d//rc.firewall.local
#
# Compiled for iptables (any version)
#
# Endian firewall appliance, 2 interfaces:
# br0 is GREEN
# eth1 is RED
# Do not forget to change IP addresses to
# match your firewall.
PATH="/sbin:/usr/sbin:/bin:/usr/bin:${PATH}"
export PATH
LSMOD="/sbin/lsmod"
MODPROBE="/sbin/modprobe"
IPTABLES="/sbin/iptables"
IP6TABLES="/sbin/ip6tables"
IPTABLES_RESTORE="/sbin/iptables-restore"
IP6TABLES_RESTORE="/sbin/ip6tables-restore"
IP="/sbin/ip"
IFCONFIG="/sbin/ifconfig"
VCONFIG="/sbin/vconfig"
BRCTL="/sbin/brctl"
IFENSLAVE="/sbin/ifenslave"
IPSET="/usr/sbin/ipset"
LOGGER="/usr/bin/logger"
log() {
echo "$1"
which "$LOGGER" >/dev/null 2>&1 && $LOGGER -p info "$1"
}
check_file() {
test -r "$2" || {
echo "Can not find file $2 referenced by AddressTable object $1"
exit 1
}
}
getInterfaceVarName() {
echo $1 | sed 's/\./_/'
}
# function getinterfaces is used to process wildcard interfaces
getinterfaces() {
NAME=$1
$IP link show | grep ": $NAME" | while read L; do
OIFS=$IFS
IFS=" :"
set $L
IFS=$OIFS
echo $2
done
}
find_program() {
PGM=$1
which $PGM >/dev/null 2>&1 || {
echo "\"$PGM\" not found"
exit 1
}
}
check_tools() {
find_program which
find_program $IPTABLES
find_program $MODPROBE
find_program $IP
}
reset_iptables_v4() {
$IPTABLES -P OUTPUT DROP
$IPTABLES -P INPUT DROP
$IPTABLES -P FORWARD DROP
cat /proc/net/ip_tables_names | while read table; do
$IPTABLES -t $table -L -n | while read c chain rest; do
if test "X$c" = "XChain" ; then
$IPTABLES -t $table -F $chain
fi
done
$IPTABLES -t $table -X
done
}
reset_iptables_v6() {
$IP6TABLES -P OUTPUT DROP
$IP6TABLES -P INPUT DROP
$IP6TABLES -P FORWARD DROP
cat /proc/net/ip6_tables_names | while read table; do
$IP6TABLES -t $table -L -n | while read c chain rest; do
if test "X$c" = "XChain" ; then
$IP6TABLES -t $table -F $chain
fi
done
$IP6TABLES -t $table -X
done
}
check_file() {
test -r "$2" || {
echo "Can not find file $2 referenced by address table object $1"
exit 1
}
}
check_run_time_address_table_files() {
:
check_file "atbl.1" "addr-table-1.tbl"
}
verify_interfaces() {
:
echo "Verifying interfaces: et0 eth1"
for i in et0 eth1 ; do
$IP link show "$i" > /dev/null 2>&1 || {
log "Interface $i does not exist"
exit 1
}
done
}
prolog_commands() {
echo "Running prolog script"
}
epilog_commands() {
echo "Running epilog script"
}
run_epilog_and_exit() {
epilog_commands
exit $1
}
script_body() {
# ================ IPv4
# ================ Table 'filter', rule set Policy
#
# Rule 0 (global)
#
echo "Rule 0 (global)"
#
$IPTABLES -A OUTPUT -p tcp -m tcp -d 10.3.14.40 --dport 80 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -p tcp -m tcp -d 10.3.14.40 --dport 80 -m state --state NEW -j ACCEPT
#
# Rule 1 (global)
#
echo "Rule 1 (global)"
#
$IPTABLES -N RULE_1
$IPTABLES -A INPUT -s 192.168.1.1 -j RULE_1
$IPTABLES -A INPUT -s 192.168.1.2 -j RULE_1
$IPTABLES -A INPUT -s 192.168.1.3/30 -j RULE_1
$IPTABLES -A INPUT -s 192.168.1.200 -j RULE_1
$IPTABLES -A INPUT -s 192.168.1.201 -j RULE_1
$IPTABLES -A INPUT -s 192.168.2.128/25 -j RULE_1
$IPTABLES -A FORWARD -s 192.168.1.1 -j RULE_1
$IPTABLES -A FORWARD -s 192.168.1.2 -j RULE_1
$IPTABLES -A FORWARD -s 192.168.1.3/30 -j RULE_1
$IPTABLES -A FORWARD -s 192.168.1.200 -j RULE_1
$IPTABLES -A FORWARD -s 192.168.1.201 -j RULE_1
$IPTABLES -A FORWARD -s 192.168.2.128/25 -j RULE_1
$IPTABLES -A RULE_1 -j LOG --log-level info --log-prefix "RULE 1 -- DENY "
$IPTABLES -A RULE_1 -j DROP
#
# Rule 2 (global)
#
echo "Rule 2 (global)"
#
$IPTABLES -N RULE_2
grep -Ev '^#|^;|^\s*$' addr-table-1.tbl | while read L ; do
set $L; at_atbl_1=$1; $IPTABLES -A INPUT -s $at_atbl_1 -j RULE_2
done
grep -Ev '^#|^;|^\s*$' addr-table-1.tbl | while read L ; do
set $L; at_atbl_1=$1; $IPTABLES -A FORWARD -s $at_atbl_1 -j RULE_2
done
$IPTABLES -A RULE_2 -j LOG --log-level info --log-prefix "RULE 2 -- DENY "
$IPTABLES -A RULE_2 -j DROP
}
reset_all() {
:
reset_iptables_v4
}
case "$1" in
start)
check_tools
check_run_time_address_table_files
verify_interfaces
prolog_commands
script_body
epilog_commands
;;
stop)
# on IPCOP "/etc/rc.firewall stop" purges all tables and chains
# and then calls this script with command "stop", but there is
# nothing left for us to do here.
;;
reload)
$0 stop
$0 start
;;
*)
echo "Usage $0 {start|stop|reload}"
;;
esac
|
