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Add userspace support for the netdev egress hook which is queued up for
v5.16-rc1, complete with documentation and tests. Usage is identical to
the ingress hook.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The fwd and dup statements are specific to netdev hooks, so move their
tests to the appropriate subdirectory.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The kernel already assumes that that ICMP type to reject a packet is
destination-unreachable, hence the user specifies the *ICMP code*.
Simplify the syntax to:
... reject with icmp port-unreachable
this removes the 'type' keyword before the ICMP code to reject the
packet with.
IIRC, the original intention is to leave room for future extensions that
allow to specify both the ICMP type and the ICMP code, this is however
not possible with the current inconsistent syntax.
Update manpages which also refer to ICMP type.
Adjust tests/py to the new syntax.
Fixes: 5fdd0b6a0600 ("nft: complete reject support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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netdev/reject.t throws a couple of WARNINGs. For some reason this file
wasn't updated after the reject statement json output was changed to
keep the icmp type/protocol.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Postprocessing for inet family did not attempt to kill any existing
payload dependency, although it is perfectly fine to do so. The mere
culprit is to not abbreviate default code rejects as that would drop
needed protocol info as a side-effect. Since postprocessing is then
almost identical to that of bridge and netdev families, merge them.
While being at it, extend tests/py/netdev/reject.t by a few more tests
taken from inet/reject.t so this covers icmpx rejects as well.
Cc: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Like with bridge family, rejecting with either icmp or icmpv6 must
create a dependency match on meta protocol. Upon delinearization, treat
netdev reject identical to bridge as well so no family info is lost.
This makes reject statement in netdev family fully symmetric so fix
the tests in tests/py/netdev/reject.t, adjust the related payload dumps
and add JSON equivalents which were missing altogether.
Fixes: 0c42a1f2a0cc5 ("evaluate: add netdev support for reject default")
Fixes: a51a0bec1f698 ("tests: py: add netdev folder and reject.t icmp cases")
Cc: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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nft-test.py only needs one payload per rule, but a number of rules have
duplicates, typically one per address family, so just keep the last
payload for rules listed more than once.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Add unit tests for the use of reject with icmp inside netdev family.
reject.t from inet family couldn't be reused because it was using
meta nfproto which is not supported inside netdev.
Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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