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escape strings for xml #1

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5b9648f
escape strings for xml
Sep 25, 2023
5b4f54e
add support for counters
Oct 28, 2023
1a9ef82
add support to colorize rules based on port ranges.
Oct 28, 2023
9f4ee70
Refactor code to mode into function to make it possible to reuse as
Oct 29, 2023
a8d75f3
Add initial support for ebtables.
Oct 29, 2023
8160c24
update example image
Oct 29, 2023
8bb1018
update link to use local example img
Oct 29, 2023
7210eff
Add chain target.
Oct 29, 2023
96c0c27
fix typo in range calculation.
Oct 29, 2023
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -28,4 +28,4 @@ $ dot -Tsvg a.dot -o a.svg
```

### Example Graph
![example.svg](https://raw.githubusercontent.com/AChingYo/iptables-graph/main/example.svg)
![example.svg](https://raw.githubusercontent.com/dethrophes/iptables-graph/main/example.svg)
211 changes: 82 additions & 129 deletions example.dot
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@@ -1,137 +1,90 @@
digraph {
bgcolor="black"
graph [pad="0.5", nodesep="0.5", ranksep="2"];
node [shape=plain]
rankdir=LR;

filter_DOCKERUSER [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td><i>DOCKER-USER</i></td></tr>
<tr><td port="begin"><i>filter</i></td></tr>
<tr><td port="rule_0">-j RETURN</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_DOCKERISOLATIONSTAGE1 [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td><i>DOCKER-ISOLATION-STAGE-1</i></td></tr>
<tr><td port="begin"><i>filter</i></td></tr>
<tr><td port="rule_0">-i docker0 ! -o docker0 -j DOCKER-ISOLATION-STAGE-2</td></tr>
<tr><td port="rule_1">-j RETURN</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_DOCKERISOLATIONSTAGE2 [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td><i>DOCKER-ISOLATION-STAGE-2</i></td></tr>
<tr><td port="begin"><i>filter</i></td></tr>
<tr><td port="rule_0">-o docker0 -j DROP</td></tr>
<tr><td port="rule_1">-j RETURN</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>filter</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_FORWARD [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>FORWARD</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>filter</i></td></tr>
<tr><td port="rule_0">-j DOCKER-USER</td></tr>
<tr><td port="rule_1">-j DOCKER-ISOLATION-STAGE-1</td></tr>
<tr><td port="rule_2">-o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT</td></tr>
<tr><td port="rule_3">-o docker0 -j DOCKER</td></tr>
<tr><td port="rule_4">-i docker0 ! -o docker0 -j ACCEPT</td></tr>
<tr><td port="rule_5">-i docker0 -o docker0 -j ACCEPT</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_INPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>INPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>filter</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_DOCKER [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td><i>DOCKER</i></td></tr>
<tr><td port="begin"><i>filter</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
raw_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>raw</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
raw_PREROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>PREROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>raw</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
mangle_FORWARD [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>FORWARD</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
mangle_INPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>INPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
mangle_POSTROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>POSTROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
mangle_PREROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>PREROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
mangle_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
nat_MASQUERADE [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td><i>MASQUERADE</i></td></tr>
<tr><td port="begin"><i>nat</i></td></tr>
<tr><td port="end">end</td></tr>
</table>>];
nat_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>nat</i></td></tr>
<tr><td port="rule_0">! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
nat_DOCKER [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td><i>DOCKER</i></td></tr>
<tr><td port="begin"><i>nat</i></td></tr>
<tr><td port="rule_0">-i docker0 -j RETURN</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
nat_PREROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>PREROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>nat</i></td></tr>
<tr><td port="rule_0">-m addrtype --dst-type LOCAL -j DOCKER</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
nat_POSTROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>POSTROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>nat</i></td></tr>
<tr><td port="rule_0">-s 172.18.0.0/24 ! -o docker0 -j MASQUERADE</td></tr>
<tr><td port="end">end</td></tr>
</table>>];
filter_DOCKERISOLATIONSTAGE1:rule_0 -> filter_DOCKERISOLATIONSTAGE2:begin;
filter_FORWARD:rule_0 -> filter_DOCKERUSER:begin;
filter_FORWARD:rule_1 -> filter_DOCKERISOLATIONSTAGE1:begin;
filter_FORWARD:rule_3 -> filter_DOCKER:begin;
nat_OUTPUT:rule_0 -> nat_DOCKER:begin;
nat_PREROUTING:rule_0 -> nat_DOCKER:begin;
nat_POSTROUTING:rule_0 -> nat_MASQUERADE:begin;
raw_PREROUTING:end -> mangle_PREROUTING:begin [color=red];
mangle_PREROUTING:end -> nat_PREROUTING:begin [color=red];
nat_PREROUTING:end -> mangle_INPUT:begin [color=red];
mangle_INPUT:end -> filter_INPUT:begin [color=red];
filter_INPUT:end -> raw_OUTPUT:begin [color=red];
raw_OUTPUT:end -> mangle_OUTPUT:begin [color=red];
mangle_OUTPUT:end -> nat_OUTPUT:begin [color=red];
nat_OUTPUT:end -> filter_OUTPUT:begin [color=red];
filter_OUTPUT:end -> mangle_POSTROUTING:begin [color=red];
mangle_POSTROUTING:end -> nat_POSTROUTING:begin [color=red];
nat_PREROUTING:end -> mangle_FORWARD:begin [color=red];
mangle_FORWARD:end -> filter_FORWARD:begin [color=red];
filter_FORWARD:end -> mangle_POSTROUTING:begin [color=red];
<tr><td bgcolor="red"><i>PREROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>raw</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];raw_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>raw</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_INPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>INPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>filter</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>filter</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_FORWARD [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>FORWARD</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>filter</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-j DOCKER-USER</td></tr>
<tr><td port="rule_1" bgcolor="darkgrey">-j DOCKER-ISOLATION-STAGE-1</td></tr>
<tr><td port="rule_2" bgcolor="darkgrey">-o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT</td></tr>
<tr><td port="rule_3" bgcolor="darkgrey">-o docker0 -j DOCKER</td></tr>
<tr><td port="rule_4" bgcolor="darkgrey">-i docker0 ! -o docker0 -j ACCEPT</td></tr>
<tr><td port="rule_5" bgcolor="darkgrey">-i docker0 -o docker0 -j ACCEPT</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_DOCKERUSER [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="white"><i>DOCKER-USER</i></td></tr>
<tr><td port="begin" bgcolor="white"><i>filter</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-j RETURN</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_DOCKERISOLATIONSTAGE1 [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="white"><i>DOCKER-ISOLATION-STAGE-1</i></td></tr>
<tr><td port="begin" bgcolor="white"><i>filter</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-i docker0 ! -o docker0 -j DOCKER-ISOLATION-STAGE-2</td></tr>
<tr><td port="rule_1" bgcolor="darkgrey">-j RETURN</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_DOCKER [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="white"><i>DOCKER</i></td></tr>
<tr><td port="begin" bgcolor="white"><i>filter</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_DOCKERISOLATIONSTAGE2 [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="white"><i>DOCKER-ISOLATION-STAGE-2</i></td></tr>
<tr><td port="begin" bgcolor="white"><i>filter</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-o docker0 -j DROP</td></tr>
<tr><td port="rule_1" bgcolor="darkgrey">-j RETURN</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];nat_PREROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>PREROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>nat</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-m addrtype --dst-type LOCAL -j DOCKER</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];nat_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>nat</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];nat_POSTROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>POSTROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>nat</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-s 172.18.0.0/24 ! -o docker0 -j MASQUERADE</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];nat_DOCKER [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="white"><i>DOCKER</i></td></tr>
<tr><td port="begin" bgcolor="white"><i>nat</i></td></tr>
<tr><td port="rule_0" bgcolor="darkgrey">-i docker0 -j RETURN</td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];nat_MASQUERADE [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="white"><i>MASQUERADE</i></td></tr>
<tr><td port="begin" bgcolor="white"><i>nat</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];mangle_PREROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>PREROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];mangle_INPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>INPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];mangle_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];mangle_FORWARD [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>FORWARD</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];mangle_POSTROUTING [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>POSTROUTING</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>mangle</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];security_INPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>INPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>security</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];security_OUTPUT [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>OUTPUT</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>security</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];security_FORWARD [label=<<table border="0" cellborder="1" cellspacing="0">
<tr><td bgcolor="red"><i>FORWARD</i></td></tr>
<tr><td port="begin" bgcolor="tomato"><i>security</i></td></tr><tr><td port="end" bgcolor="white">end</td></tr></table>>];filter_FORWARD:rule_0 -> filter_DOCKERUSER:begin [color="white"]
filter_FORWARD:rule_1 -> filter_DOCKERISOLATIONSTAGE1:begin [color="white"]
filter_FORWARD:rule_3 -> filter_DOCKER:begin [color="white"]
filter_DOCKERISOLATIONSTAGE1:rule_0 -> filter_DOCKERISOLATIONSTAGE2:begin [color="white"]
nat_PREROUTING:rule_0 -> nat_DOCKER:begin [color="white"]
nat_OUTPUT:rule_0 -> nat_DOCKER:begin [color="white"]
nat_POSTROUTING:rule_0 -> nat_MASQUERADE:begin [color="white"]
raw_PREROUTING:end -> mangle_PREROUTING:begin [color="red"]
mangle_PREROUTING:end -> nat_PREROUTING:begin [color="red"]
nat_PREROUTING:end -> mangle_INPUT:begin [color="red"]
mangle_INPUT:end -> filter_INPUT:begin [color="red"]
filter_INPUT:end -> security_INPUT:begin [color="red"]
security_INPUT:end -> raw_OUTPUT:begin [color="red"]
raw_OUTPUT:end -> mangle_OUTPUT:begin [color="red"]
mangle_OUTPUT:end -> nat_OUTPUT:begin [color="red"]
nat_OUTPUT:end -> filter_OUTPUT:begin [color="red"]
filter_OUTPUT:end -> security_OUTPUT:begin [color="red"]
security_OUTPUT:end -> mangle_POSTROUTING:begin [color="red"]
mangle_POSTROUTING:end -> nat_POSTROUTING:begin [color="red"]
nat_PREROUTING:end -> mangle_FORWARD:begin [color="red"]
mangle_FORWARD:end -> filter_FORWARD:begin [color="red"]
filter_FORWARD:end -> security_FORWARD:begin [color="red"]
security_FORWARD:end -> mangle_POSTROUTING:begin [color="red"]

}
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