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This adds C implementations for arptables-save and -restore in compat
layer based on the two perl scripts in legacy arptables repository.
To share common code, introduce nft_init_arp() analogous to
nft_init_eb() introduced earlier.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
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This patch adds support to use the mangle target extensions, along with
the required changes in the surrounding code.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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# arptables-compat -D INPUT -j ACCEPT
arptables: Bad rule (does a matching rule exist in that chain?)
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch should allow distributors to switch to the iptables over
nftables compatibility layer in a transparent way by updating
symbolic links from:
lrwxrwxrwx 1 root root 13 feb 4 15:35 iptables -> xtables-multi
to:
lrwxrwxrwx 1 root root 13 feb 4 15:35 iptables -> xtables-compat-multi
Same thing with iptables-save, iptables-restore, ip6tables, ip6tables-save,
ip6tables-restore and arptables.
Note that, after this patch, the following new symlinks are installed:
* iptables-compat
* iptables-compat-save
* iptables-compat-restore
* ip6tables-compat
* ip6tables-compat-save
* ip6tables-compat-restore
* arptables-compat
which point to the new binary xtables-compat-multi.
The idea is to keep both native and compatibility tools installed in the
system, which should also make it easier for testing purposes.
The iptables over nftables compatibility layer is enabled by default
and it requires the libmnl and libnftnl libraries. If you don't want to
compile the compatibility layer, you can still disable it through
--disable-nftables.
This patch also includes changes to adapt the existing code to this
approach.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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With this patch, all rule-set updates are put in one single batch
of netlink messages that is sent to user-space using the new
nfnetlink batch infrastructure.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch bootstraps ARP support for the compatibility layer:
1) copy original arptables code into xtables-arp.c
2) adapt it to fit into the existing nft infrastructure.
3) add the builtin table/chains for ARP.
4) add necessary parts so xtables-multi can provide xtables-arp.
5) add basic support for rule addition (-A), insertion (-I) and
listing (-L).
[ This was originally posted in a series of patches with interdependencies
that I have collapsed to leave the repository in consistent state. This
patch includes the following changes I made:
* Rename from xtables-arptables to xtables-arp, previous name too long.
* Remove nft-arptables.c, now we have one single nft-arp.c file. Moved
specific ARP functions to nft.c. Those should go away at some point as
some refactorization should allow to accomodate those functions to the
existing infrastructure.
* Fix --opcode Request/Reply, so we can do something useful with this
like dropping ARP request/replies.
--pablo ]
Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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