From fecb6b4fa737ae374a738d207fa35f16e3813434 Mon Sep 17 00:00:00 2001 From: Ana Rey Date: Mon, 3 Nov 2014 18:10:51 +0100 Subject: src: Add cgroup support in meta expresion The new attribute of meta is "cgroup". Example of use in nft: # nft add rule ip test output meta cgroup != 0x100001 counter drop Moreover, this adds tests to the meta.t test file. The kernel support is addedin the commit: ce67417 ("netfilter: nft_meta: add cgroup support") The libnftnl support is add in the commit: 1d4a480 ("expr: meta: Add cgroup support") More information about the steps to use cgroup: https://www.kernel.org/doc/Documentation/cgroups/net_cls.txt More info about cgroup in iptables: http://git.kernel.org/cgit/linux/kernel/git/pablo/nftables.git/commit/net/netfilter/xt_cgroup.c?id=82a37132f300ea53bdcd812917af5a6329ec80c3 Signed-off-by: Ana Rey Signed-off-by: Pablo Neira Ayuso --- src/meta.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/meta.c') diff --git a/src/meta.c b/src/meta.c index faa29eb8..61dc5cf0 100644 --- a/src/meta.c +++ b/src/meta.c @@ -436,6 +436,9 @@ static const struct meta_template meta_templates[] = { [NFT_META_OIFGROUP] = META_TEMPLATE("oifgroup", &devgroup_type, 4 * BITS_PER_BYTE, BYTEORDER_HOST_ENDIAN), + [NFT_META_CGROUP] = META_TEMPLATE("cgroup", &integer_type, + 4 * BITS_PER_BYTE, + BYTEORDER_HOST_ENDIAN), }; static void meta_expr_print(const struct expr *expr) -- cgit v1.2.3