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* ebtables: use extrapositioned negation consistentlyFlorian Westphal2018-11-121-0/+4
| | | | | | | | | | | | | | 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>
* libxtables: add and use mac print helpersFlorian Westphal2018-11-071-5/+5
| | | | | | | | | | | | 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>
* ebtables: fix -j CONTINUE handling for add/deleteFlorian Westphal2018-11-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -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>
* tests: add basic ebtables test supportFlorian Westphal2018-11-031-0/+6
now that we have ebtables-save, lets add test cases for ebtables-nft as well. Signed-off-by: Florian Westphal <fw@strlen.de>