154b2b691331a0b342d61d5f7136fed66cb421b9
[project/luci.git] / contrib / package / meshwizard / files / usr / bin / meshwizard / helpers / setup_firewall.sh
1 #!/bin/sh
2 # Add "freifunk" firewall zone
3 # If wan/lan is used for olsr then remove these networks from wan/lan zones
4 # Also setup rules defined in /etc/config/freifunk and /etc/config/profile_<community>
5
6 . /lib/functions.sh
7 . $dir/functions.sh
8
9 wan_is_olsr=$(uci -q get meshwizard.netconfig.wan_config)
10
11 config_load firewall
12
13 # Rename firewall zone for freifunk if unnamed
14 # If wan is used for olsr then set network for the firewall zone wan to ' ' to remove the wan interface from it, else add local restrict to it
15 # If lan is used for olsr then set network for the firewall zone lan to ' ' to remove the lan interface from it
16
17 handle_fwzone() {
18         config_get name "$1" name
19         config_get network "$1" network
20
21         if [ "$name" == "freifunk" ]; then
22                 # rename section if unnamed
23                 if [ -z "${1/cfg[0-9a-fA-F]*/}" ]; then
24                         section_rename firewall $1 zone_freifunk
25                 fi
26         fi
27
28         if [ "$name" == "wan" ]; then
29                 if  [ "$wan_is_olsr" == 1 ]; then
30                         uci set firewall.$1.network=' ' && uci_commitverbose "WAN is used for olsr, removed the wan interface from zone wan" firewall
31                 else
32                         uci set firewall.$1.local_restrict=1 && uci_commitverbose "Enable local_restrict for zone wan" firewall
33                 fi
34         fi
35
36         if [ "$name" == "lan" ] && [ "$lan_is_olsr" == "1" ]; then
37                         uci set firewall.$1.network=' ' && uci_commitverbose "LAN is used for olsr, removed the lan interface from zone lan" firewall
38         fi
39 }
40
41 config_foreach handle_fwzone zone
42
43 uci batch << EOF
44         set firewall.zone_freifunk="zone"
45         set firewall.zone_freifunk.name="freifunk"
46         set firewall.zone_freifunk.input="$zone_freifunk_input"
47         set firewall.zone_freifunk.forward="$zone_freifunk_forward"
48         set firewall.zone_freifunk.output="$zone_freifunk_output"
49 EOF
50
51 uci_commitverbose "Setup firewall zones" firewall
52
53 # Usually we need to setup masquerading for lan, except lan is an olsr interface or has an olsr hna-entry
54
55 handle_interface() {
56         config_get interface "$1" interface
57         if [ "$interface" == "lan" ]; then
58                 no_masq_lan=1
59         fi
60 }
61 config_load olsrd
62 config_foreach handle_interface Interface
63
64 LANIP="$(uci -q get network.lan.ipaddr)"
65 if [ -n "$LANIP" ]; then
66         handle_hna() {
67                 config_get netaddr "$1" netaddr
68                         if [ "$LANIP" == "$netaddr" ]; then
69                         no_masq_lan=1
70                 fi
71         }
72         config_foreach handle_hna Hna4
73 fi
74
75 currms=$(uci -q get firewall.zone_freifunk.masq_src)
76 if [ ! "$no_masq_lan" == "1" ] && [ ! "$(uci -q get meshwizard.netconfig.lan_config)" == 1 ]; then
77         uci set firewall.zone_freifunk.masq="1"
78         [ -z "$(echo $currms |grep lan)" ] && uci add_list firewall.zone_freifunk.masq_src="lan"
79 fi
80
81
82 # Rules, Forwardings, advanced config and includes from freifunk and
83 # profile_$community config files.
84
85 add_fw_rules() {
86     config_cb() {
87         local type="$1"
88         local name="$2"
89         local allowed_section_types="advanced include fw_rule fw_forwarding"
90         if is_in_list "$allowed_section_types" $type ; then
91             uci set firewall.${name}="${type/fw_/}"
92             option_cb() {
93                 local option="$1"
94                 local value="$2"
95                 uci set firewall.${CONFIG_SECTION}.${option}="$value"
96             }
97         else
98             option_cb() { return; }
99         fi
100     }
101     config_load freifunk
102     config_load profile_${community}
103 }
104 add_fw_rules
105
106
107 # If we use auto-ipv6-dhcp then allow 547/udp on the freifunk zone
108 if [ "$ipv6_config" = "auto-ipv6-dhcpv6" ]; then
109         uci batch <<- EOF
110                 set firewall.dhcpv6=rule
111                 set firewall.dhcpv6.src=freifunk
112                 set firewall.dhcpv6.target=ACCEPT
113                 set firewall.dhcpv6.dest_port=547
114                 set firewall.dhcpv6.proto=udp
115         EOF
116 fi
117
118 # Firewall rules to allow incoming ssh and web if enabled
119
120 if [ "$wan_allowssh" == 1 ]; then
121         uci batch <<- EOF
122                 set firewall.wanssh=rule
123                 set firewall.wanssh.src=wan
124                 set firewall.wanssh.target=ACCEPT
125                 set firewall.wanssh.proto=tcp
126                 set firewall.wanssh.dest_port=22
127         EOF
128 fi
129
130 if [ "$wan_allowweb" == 1 ]; then
131         uci batch <<- EOF
132                 set firewall.wanweb=rule
133                 set firewall.wanweb.src=wan
134                 set firewall.wanweb.target=ACCEPT
135                 set firewall.wanweb.proto=tcp
136                 set firewall.wanweb.dest_port=80
137                 set firewall.wanwebhttps=rule
138                 set firewall.wanwebhttps.src=wan
139                 set firewall.wanwebhttps.target=ACCEPT
140                 set firewall.wanwebhttps.proto=tcp
141                 set firewall.wanwebhttps.dest_port=443
142         EOF
143 fi
144
145 uci_commitverbose "Setup rules, forwardings, advanced config and includes." firewall