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5d7faa45 | 1 | #!/bin/sh |
dc21519f AM |
2 | ############################################################################### |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5bee9a9d | 5 | # Copyright (C) 2013 Alexander Marx <amarx@ipfire.org> # |
dc21519f AM |
6 | # # |
7 | # This program is free software: you can redistribute it and/or modify # | |
8 | # it under the terms of the GNU General Public License as published by # | |
9 | # the Free Software Foundation, either version 3 of the License, or # | |
10 | # (at your option) any later version. # | |
11 | # # | |
12 | # This program is distributed in the hope that it will be useful, # | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
15 | # GNU General Public License for more details. # | |
16 | # # | |
17 | # You should have received a copy of the GNU General Public License # | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
19 | # # | |
20 | ############################################################################### | |
dc21519f | 21 | |
52c5ec83 | 22 | eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings) |
6d8eb5de | 23 | eval $(/usr/local/bin/readhash /var/ipfire/firewall/settings) |
5d7faa45 AM |
24 | eval $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings) |
25 | ||
a211fee3 MT |
26 | function iptables() { |
27 | /sbin/iptables --wait "$@" | |
28 | } | |
29 | ||
5d7faa45 AM |
30 | iptables -F POLICYFWD |
31 | iptables -F POLICYOUT | |
d47bb8a1 | 32 | iptables -F POLICYIN |
53f4c74d AM |
33 | |
34 | if [ -f "/var/ipfire/red/iface" ]; then | |
52c5ec83 | 35 | IFACE="$(</var/ipfire/red/iface)" |
53f4c74d | 36 | fi |
5d7faa45 | 37 | |
52c5ec83 MT |
38 | # Figure out what devices are configured. |
39 | HAVE_BLUE="false" | |
40 | HAVE_ORANGE="false" | |
41 | ||
42 | case "${CONFIG_TYPE}" in | |
43 | 2) | |
bcf1a624 | 44 | HAVE_ORANGE="true" |
52c5ec83 MT |
45 | ;; |
46 | 3) | |
bcf1a624 | 47 | HAVE_BLUE="true" |
52c5ec83 MT |
48 | ;; |
49 | 4) | |
50 | HAVE_BLUE="true" | |
51 | HAVE_ORANGE="true" | |
52 | ;; | |
53 | esac | |
54 | ||
55 | # INPUT | |
56 | case "${FWPOLICY2}" in | |
57 | REJECT) | |
58 | if [ "${DROPINPUT}" = "on" ]; then | |
a211fee3 | 59 | iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "REJECT_INPUT" |
5d7faa45 | 60 | fi |
a211fee3 | 61 | iptables -A POLICYIN -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_INPUT" |
52c5ec83 MT |
62 | ;; |
63 | *) # DROP | |
64 | if [ "${DROPINPUT}" = "on" ]; then | |
a211fee3 | 65 | iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT" |
5d7faa45 | 66 | fi |
a211fee3 | 67 | iptables -A POLICYIN -j DROP -m comment --comment "DROP_INPUT" |
52c5ec83 MT |
68 | ;; |
69 | esac | |
93b75f31 | 70 | |
52c5ec83 MT |
71 | # FORWARD |
72 | case "${POLICY}" in | |
73 | MODE1) | |
74 | case "${FWPOLICY}" in | |
75 | REJECT) | |
76 | if [ "${DROPFORWARD}" = "on" ]; then | |
a211fee3 | 77 | iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "REJECT_FORWARD" |
52c5ec83 | 78 | fi |
a211fee3 | 79 | iptables -A POLICYFWD -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_FORWARD" |
52c5ec83 MT |
80 | ;; |
81 | *) # DROP | |
82 | if [ "${DROPFORWARD}" = "on" ]; then | |
a211fee3 | 83 | iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD" |
52c5ec83 | 84 | fi |
a211fee3 | 85 | iptables -A POLICYFWD -j DROP -m comment --comment "DROP_FORWARD" |
52c5ec83 MT |
86 | ;; |
87 | esac | |
88 | ;; | |
89 | ||
90 | *) | |
91 | if [ -n "${IFACE}" ]; then | |
92 | if [ "${HAVE_BLUE}" = "true" ] && [ -n "${BLUE_DEV}" ]; then | |
a211fee3 | 93 | iptables -A POLICYFWD -i "${BLUE_DEV}" ! -o "${IFACE}" -j DROP |
52c5ec83 MT |
94 | fi |
95 | if [ "${HAVE_ORANGE}" = "true" ] && [ -n "${ORANGE_DEV}" ]; then | |
a211fee3 | 96 | iptables -A POLICYFWD -i "${ORANGE_DEV}" ! -o "${IFACE}" -j DROP |
52c5ec83 | 97 | fi |
5d7faa45 | 98 | fi |
a211fee3 MT |
99 | iptables -A POLICYFWD -j ACCEPT |
100 | iptables -A POLICYFWD -m comment --comment "DROP_FORWARD" -j DROP | |
52c5ec83 MT |
101 | ;; |
102 | esac | |
103 | ||
104 | # OUTGOING | |
105 | case "${POLICY1}" in | |
106 | MODE1) | |
107 | case "${FWPOLICY1}" in | |
108 | REJECT) | |
109 | if [ "${DROPOUTGOING}" = "on" ]; then | |
a211fee3 | 110 | iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "REJECT_OUTPUT" |
52c5ec83 | 111 | fi |
a211fee3 | 112 | iptables -A POLICYOUT -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_OUTPUT" |
52c5ec83 MT |
113 | ;; |
114 | *) # DROP | |
115 | if [ "${DROPOUTGOING}" == "on" ]; then | |
a211fee3 | 116 | iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_OUTPUT" |
52c5ec83 | 117 | fi |
a211fee3 | 118 | iptables -A POLICYOUT -j DROP -m comment --comment "DROP_OUTPUT" |
52c5ec83 MT |
119 | ;; |
120 | esac | |
121 | ;; | |
122 | *) | |
a211fee3 MT |
123 | iptables -A POLICYOUT -j ACCEPT |
124 | iptables -A POLICYOUT -m comment --comment "DROP_OUTPUT" -j DROP | |
52c5ec83 MT |
125 | ;; |
126 | esac | |
aff15def AM |
127 | |
128 | exit 0 |