bf47241122af4a079bb3c2d4b7ed995f23461ec4
[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 lan_is_olsr=$(uci -q get meshwizard.netconfig.lan_config)
11
12 config_load firewall
13
14 # Rename firewall zone for freifunk if unnamed
15 # 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
16 # If lan is used for olsr then set network for the firewall zone lan to ' ' to remove the lan interface from it
17
18 handle_fwzone() {
19         config_get name "$1" name
20         config_get network "$1" network
21
22         if [ "$name" == "freifunk" ]; then
23                 # rename section if unnamed
24                 if [ -z "${1/cfg[0-9a-fA-F]*/}" ]; then
25                         section_rename firewall $1 zone_freifunk
26                 fi
27         fi
28
29         if [ "$name" == "wan" ]; then
30                 if  [ "$wan_is_olsr" == 1 ]; then
31                         uci set firewall.$1.network=' ' && uci_commitverbose "WAN is used for olsr, removed the wan interface from zone wan" firewall
32                 else
33                         uci set firewall.$1.local_restrict=1 && uci_commitverbose "Enable local_restrict for zone wan" firewall
34                 fi
35         fi
36
37         if [ "$name" == "lan" ] && [ "$lan_is_olsr" == 1 ]; then
38                         uci set firewall.$1.network=' ' && uci_commitverbose "LAN is used for olsr, removed the lan interface from zone lan" firewall
39         fi
40 }
41
42 config_foreach handle_fwzone zone
43
44 uci batch << EOF
45         set firewall.zone_freifunk="zone"
46         set firewall.zone_freifunk.name="freifunk"
47         set firewall.zone_freifunk.input="$zone_freifunk_input"
48         set firewall.zone_freifunk.forward="$zone_freifunk_forward"
49         set firewall.zone_freifunk.output="$zone_freifunk_output"
50 EOF
51
52 uci_commitverbose "Setup firewall zones" firewall
53
54 # Usually we need to setup masquerading for lan, except lan is an olsr interface or has an olsr hna-entry
55
56 handle_interface() {
57         config_get interface "$1" interface
58         if [ "$interface" == "lan" ]; then
59                 no_masq_lan=1
60         fi
61 }
62 config_load olsrd
63 config_foreach handle_interface Interface
64
65 LANIP="$(uci -q get network.lan.ipaddr)"
66 if [ -n "$LANIP" ]; then
67         handle_hna() {
68                 config_get netaddr "$1" netaddr
69                         if [ "$LANIP" == "$netaddr" ]; then
70                         no_masq_lan=1
71                 fi
72         }
73         config_foreach handle_hna Hna4
74 fi
75
76 currms=$(uci -q get firewall.zone_freifunk.masq_src)
77 if [ ! "$no_masq_lan" == "1" ] && [ ! "$(uci -q get meshwizard.netconfig.lan_config)" == 1 ]; then
78         uci set firewall.zone_freifunk.masq="1"
79         [ -z "$(echo $currms |grep lan)" ] && uci add_list firewall.zone_freifunk.masq_src="lan"
80 fi
81
82
83 # Rules, Forwardings, advanced config and includes
84
85 for config in freifunk profile_$community; do
86
87         config_load $config
88
89         for section in advanced include fw_rule fw_forwarding; do
90                 handle_firewall() {
91                         local options=$(uci show $config."$1")
92                         options=$(echo "$options" | sed -e "s/fw_//g" -e "s/^$config/firewall/g")
93                         for o in $options; do
94                                 uci set $o
95                         done
96                 }
97                 config_foreach handle_firewall $section
98         done
99 done
100
101 # If we use auto-ipv6-dhcp then allow 547/udp on the freifunk zone
102 if [ "$ipv6_config" = "auto-ipv6-dhcpv6" ]; then
103         uci batch <<- EOF
104                 set firewall.dhcpv6=rule
105                 set firewall.dhcpv6.src=freifunk
106                 set firewall.dhcpv6.target=ACCEPT
107                 set firewall.dhcpv6.dest_port=547
108                 set firewall.dhcpv6.proto=udp
109         EOF
110 fi
111
112 # Firewall rules to allow incoming ssh and web if enabled
113
114 if [ "$wan_allowssh" == 1 ]; then
115         uci batch <<- EOF
116                 set firewall.wanssh=rule
117                 set firewall.wanssh.src=wan
118                 set firewall.wanssh.target=ACCEPT
119                 set firewall.wanssh.proto=tcp
120                 set firewall.wanssh.dest_port=22
121         EOF
122 fi
123
124 if [ "$wan_allowweb" == 1 ]; then
125         uci batch <<- EOF
126                 set firewall.wanweb=rule
127                 set firewall.wanweb.src=wan
128                 set firewall.wanweb.target=ACCEPT
129                 set firewall.wanweb.proto=tcp
130                 set firewall.wanweb.dest_port=80
131                 set firewall.wanwebhttps=rule
132                 set firewall.wanwebhttps.src=wan
133                 set firewall.wanwebhttps.target=ACCEPT
134                 set firewall.wanwebhttps.proto=tcp
135                 set firewall.wanwebhttps.dest_port=443
136         EOF
137 fi
138
139 uci_commitverbose "Setup rules, forwardings, advanced config and includes." firewall