indexed SNAT/DNAT optimized for /dev/shm, 3xB (/16) private addreseses and 3 wan...
[svn/Prometheus-QoS/.git] / optional-tools / make-iptables-restore
1 #!/bin/bash
2 iptables="/sbin/iptables"
3 iptablesrestore="/sbin/iptables-restore"
4 ifconfig="/sbin/ifconfig"
5 grep="/bin/grep"
6 cut="/usr/bin/cut"
7
8 #pimp files must be generated by optional-tools/make-pimp utility
9 pimp_2way_nat="/dev/shm/pimp-2way-nat.tmp"
10 pimp_snat="/dev/shm/pimp-snat.tmp"
11 etchosts="/mnt/mtdblock0/hosts"
12 restoretmp="/dev/shm/iptables-restore.tmp"
13 restoredata="/mnt/mtdblock0/iptables-restore.in"
14 wan1="vlan770"
15 wan2="vlan771"
16 wan3="vlan772"
17 wan4="vlan774"
18 czffirstbitmask="19"
19 czfsecondbitmask="22"
20 czfthirdbitmask="25"
21 czffourthbitmask="28"
22 pubfirstbitmask="26"
23 pubsecondbitmask="29"
24
25 echo "*nat" > $restoretmp
26 echo ":PREROUTING ACCEPT [0:0]" >> $restoretmp
27 echo ":POSTROUTING ACCEPT [0:0]" >> $restoretmp
28 echo ":OUTPUT ACCEPT [0:0]" >> $restoretmp
29
30 # ===============================================================
31 # Symetrical SNAT-DNAT using indexed iptables
32 # ===============================================================
33
34 echo -n "Generating new iptables-restore data - two way SNAT/DNAT "
35
36 for czfip in `$grep -v ^# $pimp_2way_nat|$cut -f 1 -d " "`
37 do
38 pubip=`$grep "$czfip " $pimp_2way_nat|$cut -f 2 -d " "`
39 czffirstindex=priv_`ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
40 czfsecondindex=priv_`ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
41 czfthirdindex=priv_`ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
42 czffourthindex=priv_`ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
43 pubfirstindex=pub_`ipcalc -n $pubip/$pubfirstbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
44 pubsecondindex=pub_`ipcalc -n $pubip/$pubsecondbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
45
46 if ! $grep $czffirstindex $restoretmp > /dev/null
47 then
48 echo :$czffirstindex "- [0:0]" >> $restoretmp
49 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czffirstindex >> $restoretmp
50 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czffirstindex >> $restoretmp
51 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czffirstindex >> $restoretmp
52 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czffirstindex >> $restoretmp
53 fi
54
55 if ! $grep $czfsecondindex $restoretmp > /dev/null
56 then
57 echo :$czfsecondindex "- [0:0]" >> $restoretmp
58 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czfsecondindex >> $restoretmp
59 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czfsecondindex >> $restoretmp
60 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czfsecondindex >> $restoretmp
61 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czfsecondindex >> $restoretmp
62 fi
63
64 if ! $grep $czfthirdindex $restoretmp > /dev/null
65 then
66 echo :$czfthirdindex "- [0:0]" >> $restoretmp
67 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czfthirdindex >> $restoretmp
68 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czfthirdindex >> $restoretmp
69 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czfthirdindex >> $restoretmp
70 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czfthirdindex >> $restoretmp
71 fi
72
73 if ! $grep $czffourthindex $restoretmp > /dev/null
74 then
75 echo :$czffourthindex "- [0:0]" >> $restoretmp
76 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czffourthindex >> $restoretmp
77 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czffourthindex >> $restoretmp
78 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czffourthindex >> $restoretmp
79 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czffourthindex >> $restoretmp
80 fi
81
82 if ! $grep $pubfirstindex $restoretmp > /dev/null
83 then
84 echo :$pubfirstindex "- [0:0]" >> $restoretmp
85 echo -A PREROUTING -i $wan1 -d `ipcalc -n $pubip/$pubfirstbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubfirstindex >> $restoretmp
86 echo -A PREROUTING -i $wan2 -d `ipcalc -n $pubip/$pubfirstbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubfirstindex >> $restoretmp
87 echo -A PREROUTING -i $wan3 -d `ipcalc -n $pubip/$pubfirstbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubfirstindex >> $restoretmp
88 echo -A PREROUTING -i $wan4 -d `ipcalc -n $pubip/$pubfirstbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubfirstindex >> $restoretmp
89 fi
90
91 if ! $grep $pubsecondindex $restoretmp > /dev/null
92 then
93 echo :$pubsecondindex "- [0:0]" >> $restoretmp
94 echo -A $pubfirstindex -i $wan1 -d `ipcalc -n $pubip/$pubsecondbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubsecondindex >> $restoretmp
95 echo -A $pubfirstindex -i $wan2 -d `ipcalc -n $pubip/$pubsecondbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubsecondindex >> $restoretmp
96 echo -A $pubfirstindex -i $wan3 -d `ipcalc -n $pubip/$pubsecondbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubsecondindex >> $restoretmp
97 echo -A $pubfirstindex -i $wan4 -d `ipcalc -n $pubip/$pubsecondbitmask|$grep Network|$cut -f 4 -d \ ` -j $pubsecondindex >> $restoretmp
98 fi
99
100 echo -A $pubsecondindex -i $wan1 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoretmp
101 echo -A $pubsecondindex -i $wan2 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoretmp
102 echo -A $pubsecondindex -i $wan3 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoretmp
103 echo -A $pubsecondindex -i $wan4 -d $pubip/32 -j DNAT --to-destination $czfip >> $restoretmp
104
105 echo -A $czffourthindex -s $czfip/32 -o $wan1 -j SNAT --to-source $pubip >> $restoretmp
106 echo -A $czffourthindex -s $czfip/32 -o $wan2 -j SNAT --to-source $pubip >> $restoretmp
107 echo -A $czffourthindex -s $czfip/32 -o $wan3 -j SNAT --to-source $pubip >> $restoretmp
108 echo -A $czffourthindex -s $czfip/32 -o $wan4 -j SNAT --to-source $pubip >> $restoretmp
109
110 echo -n .
111 done
112 echo " done."
113
114 echo -n "Generating new iptables-restore data - one way SNAT "
115
116 # ===============================================================
117 # SNAT only using indexed iptables (should be rather function, hmm)
118 # ===============================================================
119
120 for czfip in `$grep -v ^# $pimp_snat|$cut -f 1 -d " "`
121 do
122 pubip=`$grep "$czfip " $pimp_snat|$cut -f 2 -d " "`
123 czffirstindex=priv_`ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
124 czfsecondindex=priv_`ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
125 czfthirdindex=priv_`ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
126 czffourthindex=priv_`ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ |tr [./] _`
127
128 if ! $grep $czffirstindex $restoretmp > /dev/null
129 then
130 echo :$czffirstindex "- [0:0]" >> $restoretmp
131 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czffirstindex >> $restoretmp
132 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czffirstindex >> $restoretmp
133 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czffirstindex >> $restoretmp
134 echo -A POSTROUTING -d ! 10.0.0.0/8 -s `ipcalc -n $czfip/$czffirstbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czffirstindex >> $restoretmp
135 fi
136
137 if ! $grep $czfsecondindex $restoretmp > /dev/null
138 then
139 echo :$czfsecondindex "- [0:0]" >> $restoretmp
140 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czfsecondindex >> $restoretmp
141 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czfsecondindex >> $restoretmp
142 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czfsecondindex >> $restoretmp
143 echo -A $czffirstindex -s `ipcalc -n $czfip/$czfsecondbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czfsecondindex >> $restoretmp
144 fi
145
146 if ! $grep $czfthirdindex $restoretmp > /dev/null
147 then
148 echo :$czfthirdindex "- [0:0]" >> $restoretmp
149 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czfthirdindex >> $restoretmp
150 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czfthirdindex >> $restoretmp
151 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czfthirdindex >> $restoretmp
152 echo -A $czfsecondindex -s `ipcalc -n $czfip/$czfthirdbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czfthirdindex >> $restoretmp
153 fi
154
155 if ! $grep $czffourthindex $restoretmp > /dev/null
156 then
157 echo :$czffourthindex "- [0:0]" >> $restoretmp
158 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan1 -j $czffourthindex >> $restoretmp
159 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan2 -j $czffourthindex >> $restoretmp
160 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan3 -j $czffourthindex >> $restoretmp
161 echo -A $czfthirdindex -s `ipcalc -n $czfip/$czffourthbitmask|$grep Network|$cut -f 4 -d \ ` -o $wan4 -j $czffourthindex >> $restoretmp
162 fi
163
164 echo -A $czffourthindex -s $czfip/32 -o $wan1 -j SNAT --to-source $pubip >> $restoretmp
165 echo -A $czffourthindex -s $czfip/32 -o $wan2 -j SNAT --to-source $pubip >> $restoretmp
166 echo -A $czffourthindex -s $czfip/32 -o $wan3 -j SNAT --to-source $pubip >> $restoretmp
167 echo -A $czffourthindex -s $czfip/32 -o $wan4 -j SNAT --to-source $pubip >> $restoretmp
168
169 echo -n .
170 done
171 echo " done."
172
173 echo COMMIT >> $restoretmp
174 mv $restoretmp $restoredata
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