a4f661fc |
1 | #!/bin/bash |
2 | |
3 | iptables="/sbin/iptables" |
4 | ifconfig="/sbin/ifconfig" |
5 | |
6 | #pimp.conf should be regularly updated! |
7 | pimp="/rw/etc/pimp.conf" |
8 | script="/rw/etc/network/snat-dnat" |
9 | |
10 | echo "#!/bin/bash" > $script |
11 | echo $iptables -t nat -F >> $script |
12 | echo $iptables -t nat -X >> $script |
13 | echo "echo -n \"Setting firewall rules \"" >> $script |
14 | |
15 | # =============================================================== |
16 | # Symetricky SNAT-DNAT, zarazeny do indexovanych iptables |
17 | # =============================================================== |
18 | |
19 | echo -n "Generating new pimp index rules " |
20 | |
21 | for czfip in `grep -v ^# $pimp|cut -f 1 -d " "` |
22 | do |
23 | pubip=`grep "$czfip " $pimp|cut -f 2 -d " "` |
24 | czffirstindex=priv_`ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ |tr [./] _` |
25 | czfsecondindex=priv_`ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ |tr [./] _` |
26 | czfthirdindex=priv_`ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ |tr [./] _` |
27 | pubfirstindex=pub_`ipcalc -n $pubip/27|grep Network|cut -f 4 -d \ |tr [./] _` |
28 | pubsecondindex=pub_`ipcalc -n $pubip/29|grep Network|cut -f 4 -d \ |tr [./] _` |
29 | |
30 | |
31 | if ! grep $czffirstindex $script > /dev/null |
32 | then |
33 | echo $iptables -t nat -N $czffirstindex >> $script |
34 | echo $iptables -t nat -F $czffirstindex >> $script |
35 | echo $iptables -t nat -A POSTROUTING -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -o eth1 -j $czffirstindex >> $script |
36 | fi |
37 | |
38 | if ! grep $czfsecondindex $script > /dev/null |
39 | then |
40 | echo $iptables -t nat -N $czfsecondindex >> $script |
41 | echo $iptables -t nat -F $czfsecondindex >> $script |
42 | echo $iptables -t nat -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -o eth1 -j $czfsecondindex >> $script |
43 | fi |
44 | |
45 | if ! grep $czfthirdindex $script > /dev/null |
46 | then |
47 | echo $iptables -t nat -N $czfthirdindex >> $script |
48 | echo $iptables -t nat -F $czfthirdindex >> $script |
49 | echo $iptables -t nat -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -o eth1 -j $czfthirdindex >> $script |
50 | fi |
51 | |
52 | if ! grep $pubfirstindex $script > /dev/null |
53 | then |
54 | echo $iptables -t nat -N $pubfirstindex >> $script |
55 | echo $iptables -t nat -F $pubfirstindex >> $script |
56 | echo $iptables -t nat -A PREROUTING -i eth1 -d `ipcalc -n $pubip/27|grep Network|cut -f 4 -d \ ` -j $pubfirstindex >> $script |
57 | fi |
58 | |
59 | if ! grep $pubsecondindex $script > /dev/null |
60 | then |
61 | echo $iptables -t nat -N $pubsecondindex >> $script |
62 | echo $iptables -t nat -F $pubsecondindex >> $script |
63 | echo $iptables -t nat -A $pubfirstindex -i eth1 -d `ipcalc -n $pubip/29|grep Network|cut -f 4 -d \ ` -j $pubsecondindex >> $script |
64 | fi |
65 | |
66 | echo $iptables -t nat -A $pubsecondindex -i eth1 -d $pubip/32 -j DNAT --to-destination $czfip >> $script |
67 | echo $iptables -t nat -A $pubsecondindex -i eth1 -d $pubip/32 -j ACCEPT >> $script |
68 | |
69 | echo $iptables -t nat -A $czfthirdindex -s $czfip/32 -o eth1 -j SNAT --to-source $pubip >> $script |
70 | echo $iptables -t nat -A $czfthirdindex -s $czfip/32 -o eth1 -j ACCEPT >> $script |
71 | |
72 | echo -n . |
73 | echo "echo -n ." >>$script |
74 | done |
75 | echo " done." |
76 | |
77 | # =============================================================== |
78 | # Pravidla pro dashboard |
79 | # =============================================================== |
80 | |
81 | echo -n "Generating dashboard index rules " |
82 | |
83 | for czfip in `grep ^10[.] /etc/hosts|grep dashboard-|cut -f 1` |
84 | do |
85 | czffirstindex=dash_`ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ |tr [./] _` |
86 | czfsecondindex=dash_`ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ |tr [./] _` |
87 | czfthirdindex=dash_`ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ |tr [./] _` |
88 | |
89 | if ! grep $czffirstindex $script > /dev/null |
90 | then |
91 | echo $iptables -t nat -N $czffirstindex >> $script |
92 | echo $iptables -t nat -F $czffirstindex >> $script |
93 | echo $iptables -t nat -A PREROUTING -s `ipcalc -n $czfip/20|grep Network|cut -f 4 -d \ ` -i eth0 -j $czffirstindex >> $script |
94 | fi |
95 | |
96 | if ! grep $czfsecondindex $script > /dev/null |
97 | then |
98 | echo $iptables -t nat -N $czfsecondindex >> $script |
99 | echo $iptables -t nat -F $czfsecondindex >> $script |
100 | echo $iptables -t nat -A $czffirstindex -s `ipcalc -n $czfip/23|grep Network|cut -f 4 -d \ ` -i eth0 -j $czfsecondindex >> $script |
101 | fi |
102 | |
103 | if ! grep $czfthirdindex $script > /dev/null |
104 | then |
105 | echo $iptables -t nat -N $czfthirdindex >> $script |
106 | echo $iptables -t nat -F $czfthirdindex >> $script |
107 | echo $iptables -t nat -A $czfsecondindex -s `ipcalc -n $czfip/26|grep Network|cut -f 4 -d \ ` -i eth0 -j $czfthirdindex >> $script |
108 | fi |
109 | |
110 | echo $iptables -t nat -A $czfthirdindex -s $czfip -d ! 10.0.0.0/8 -p tcp --dport 80 -j REDIRECT --to 8080 >> $script |
111 | echo $iptables -t nat -A $czfthirdindex -s $czfip -d ! 10.0.0.0/8 -p tcp --dport 3128 -j REDIRECT --to 8080 >> $script |
112 | echo $iptables -t nat -A $czfthirdindex -s $czfip -d ! 10.0.0.0/8 -p tcp --dport 8080 -j ACCEPT >> $script |
113 | echo $iptables -t nat -A $czfthirdindex -s $czfip -d ! 10.0.0.0/8 -j DROP >> $script |
114 | |
115 | echo -n . |
116 | echo "echo -n ." >>$script |
117 | |
118 | done |
119 | echo " done." |
120 | |
121 | chmod a+x $script |