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Since core xlate code now ignores '-p mh' if an mh extension is also
present in the rule, mh extension has to emit the l4proto match itself.
Therefore emit the exthdr match irrespective of '-p' argument value just
like other IPv6 extension header matches do.
Fixes: 83f60fb37d594 ("extensions: mh: Save/xlate inverted full ranges")
Signed-off-by: Phil Sutter <phil@nwl.cc>
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xtables-translate tries to avoid 'ip protocol'/'meta l4proto' matches if
following expressions add this as dependency anyway. E.g.:
| # iptables-translate -A FOO -p tcp -m tcp --dport 22 -j ACCEPT
| nft 'add rule ip filter FOO tcp dport 22 counter accept'
This worked by searching protocol name in loaded matches, but that
approach is flawed as the protocol name and corresponding extension may
differ ("mobility-header" vs. "mh"). Improve this by searching for all
names (cached or resolved) for a given protocol number.
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Also translate '-m mh' into an exthdr exists match unless '-p mh' is
also present. The latter is converted into 'meta l4proto mh' which might
need fixing itself at a later point.
Fixes: 6d4b93485055a ("extensions: libip6t_mh: Add translation to nft")
Signed-off-by: Phil Sutter <phil@nwl.cc>
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For every extension option accepting a range, test open and half-open as
well as single element and invalid (negative) ranges.
The added tests merely reflect the status quo, not the expected outcome.
Following patches will fix results and the already existing test cases
highlight the fixes' effects.
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Now that xtables-translate encloses the entire command line in ', update
the test cases accordingly.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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libip6t_mh.txlate: Fail
src: ip6tables-translate -A INPUT -p mh --mh-type 1 -j ACCEPT
exp: nft add rule ip6 filter INPUT meta l4proto 135 mh type 1 counter accept
res: nft add rule ip6 filter INPUT meta l4proto mobility-header mh type 1 counter accept
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Layer 4 protocol name "mobility-header" is not known by nft, so it's
neither printed nor accepted on input. Hence fix the test instead of
code.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This test suite is intended to detect regressions in the translation
infrastructure. The script checks if ip[6]tables-translate produces the
expected output, otherwise it prints the wrong translation and the
expected one.
** Arguments
--all # Show also passed tests
[test] # Run only the specified test file
** Test files structure
Test files are located under extensions directory. Every file contains
tests about specific extension translations. A test file name must end
with ".txlate".
Inside the files, every single test is defined by two consecutive lines:
ip[6]tables-translate command and expected result. One blank line is left
between tests by convention.
e.g.
$ cat extensions/libxt_cpu.txlate
iptables-translate -A INPUT -p tcp --dport 80 -m cpu --cpu 0 -j ACCEPT
nft add rule ip filter INPUT tcp dport 80 cpu 0 counter accept
iptables-translate -A INPUT -p tcp --dport 80 -m cpu ! --cpu 1 -j ACCEPT
nft add rule ip filter INPUT tcp dport 80 cpu != 1 counter accept
Signed-off-by: Pablo M. Bermudo Garay <pablombg@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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