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Arturo reports ebtables-nft reports an error when -o is
used in custom chains:
-A MYCHAIN -o someif
makes ebtables-nft exit with an error:
"Use -o only in OUTPUT, FORWARD and POSTROUTING chains."
Problem is that all the "-o" checks expect <= NF_BR_POST_ROUTING
to mean "builtin", so -1 mistakenly leads to the checks being active.
Reported-by: Arturo Borrero Gonzalez <arturo@netfilter.org>
Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1347
Signed-off-by: Florian Westphal <fw@strlen.de>
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This reverts commit 5f508b76a0cebaf91965ffa678089222e2d47964.
While attempts at unifying syntax between arp-, eb- and iptables-nft
increase the opportunity for more code-sharing, they are problematic
when it comes to compatibility. Accepting the old syntax on input helps,
but due to the fact that neither arptables nor ebtables support --check
command we must expect for users to test existence of a rule by
comparing input with output. If that happens in a script, deviating from
the old syntax in output has a high chance of breaking it.
Therefore revert Florian's patch changing inversion character position
in output and review the old code for consistency - the only thing
changed on top of the actual revert is ebtables' own copy of
print_iface() to make it adhere to the intrapositioned negation scheme
used throughout ebtables.
Added extension tests by the reverted commit have been kept.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
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in the iptables universe, we enforce extrapositioned negation:
! -i foo
"-i ! foo" is not even supported anymore.
At least make sure that ebtables prints the former syntax everywhere as
well so we don't have a mix of both ways.
Parsing of --option ! 42 will still work for backwards compat reasons.
Signed-off-by: Florian Westphal <fw@strlen.de>
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This changes ebtables-nft to consistently print mac
address with two characters, i.e.
00:01:02:03:04:0a, not 0:1:2:3:4:a.
Will require another bump of vcurrent/vage.
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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-j CONTINUE can be added, but it can't be removed:
extensions/libebt_standard.t: ERROR: line 5 (cannot find: ebtables -I INPUT -d de:ad:be:ef:00:00 -j CONTINUE)
This problem stems from silly ambiguity in ebtables-nft vs. iptables.
In iptables, you can do
iptables -A INPUT
(no -j)
in ebtables, you can do either
ebtables -A INPUT
or
ebtables -A INPUT -j CONTINUE
both are *supposed* to be the same (and they do the same even
in ebtables-nft on netlink side).
However, the temprary binary representation within ebtables-nft is not
the same: when parsing -j CONTINUE, we add a standard target, then omit
it later in _add_target().
When translating netlink representation to ebt binary one,
we do not add a standard target and instead just print '-j CONTINUE'
when listing rules.
So when doing
-I INPUT -j CONTINUE
-D INPUT -j CONTINUE
the -D operation fails because it has a standard target in the binary
representation, whereas the rule we obtained from translating
nftables netlink back to ebtables' binary represenation doesn't.
Fix it by ignoring 'CONTINUE' on parser side.
Signed-off-by: Florian Westphal <fw@strlen.de>
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now that we have ebtables-save, lets add test cases for ebtables-nft
as well.
Signed-off-by: Florian Westphal <fw@strlen.de>
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