netfilter: Support multiport matching (-m multiport) #11298
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This set of changes adds:
- support for `xt_multiport_{,v1}` matchers for matching for
a range of ports and their inverse, i.e.,:
```
-m multiport [!] --[s|d]ports (PORT,...|PORT:PORT,...)
```
- support for `IP{,6}T_SO_GET_REVISION_MATCH` socket options,
which allows `iptables` to query for the highest supported
revision for a given matcher
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This set of changes adds:
support for
xt_multiport_{,v1}matchers for matching for a range of ports and their inverse, i.e.,:support for
IP{,6}T_SO_GET_REVISION_MATCHsocket options, which allowsiptablesto query for the highest supported revision for a given matcher