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eg. nft add rule filter output ip daddr 192.168.1.0/24 counter
so far, this operation was only possible using sets.
nft add rule filter output ip daddr \{ 192.168.1.0/24 \} counter
While at it, move all binop postprocess code to a new function that
contains this transformation and the existing bitmask to constant
(as used by eg. ct state new,established).
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch migrates nft to use the libnftables library, that is used
by the iptables over nftables compat utility as well. Most of the
conversion was pretty straight forward. Some small significant changes
happened in the handling of set element and immediate data abstraction
that libnl provides. libnftables is a bit more granular since it splits
the struct nfnl_nft_data into three attributes: verdict, chain and plain
data (used in maps).
I have added a new file src/mnl.c that contains the low level netlink
communication that now resides in nftables source tree instead of
the library. This should help to implement the batching support using
libmnl in follow up patches.
I also spent some significant amount of time running my tests to make
sure that we don't increase the number of bugs that we already have
(I plan to provide a list of those that I have detected and diagnosed,
so anyone else can help us to fix them).
As a side effect, this change should also prepare the ground for
JSON and XML support anytime soon.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Improve error reporting by always using a location in netlink operations.
Signed-off-by: Patrick McHardy<kaber@trash.net>
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Before this patch:
nft list chain filter xxx
table filter {
}
After this patch:
nft list chain filter xxx
internal:0:0-0: Error: Could not find chain `xxx' in table `filter: Object not found
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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You can now specify: nft list tables ip
to obtain the list of all existing tables.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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The callback needs to be set before sending the query since nl_wait_for_ack()
already does message reception.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Base chains with both a hook number and priority of zero are created
as regular chains. Fix by adding a BASECHAIN flag indicating that the
chain should be created as a base chain.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Move the data related function to netlink.c as they're going to be needed
outside of rule context for set maintenance.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Rename libnl netlink data to "nld" for consistency.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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