From e6d8ecac9e68265aee9be711c5bd29406129666f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Carlos=20Falgueras=20Garc=C3=ADa?= Date: Tue, 5 Jan 2016 14:03:32 +0100 Subject: netfilter: nf_tables: Add new attributes into nft_set to store user data. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit User data is stored at after 'nft_set_ops' private data into 'data[]' flexible array. The field 'udata' points to user data and 'udlen' stores its length. Add new flag NFTA_SET_USERDATA. Signed-off-by: Carlos Falgueras García Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_tables.h | 4 ++++ include/uapi/linux/netfilter/nf_tables.h | 2 ++ 2 files changed, 6 insertions(+) (limited to 'include') diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 0191fbb33a2f..f6b1daf2e698 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -291,6 +291,8 @@ void nft_unregister_set(struct nft_set_ops *ops); * @timeout: default timeout value in msecs * @gc_int: garbage collection interval in msecs * @policy: set parameterization (see enum nft_set_policies) + * @udlen: user data length + * @udata: user data * @ops: set ops * @pnet: network namespace * @flags: set flags @@ -310,6 +312,8 @@ struct nft_set { u64 timeout; u32 gc_int; u16 policy; + u16 udlen; + unsigned char *udata; /* runtime data below here */ const struct nft_set_ops *ops ____cacheline_aligned; possible_net_t pnet; diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index 731288a039f6..03c28a402c63 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -291,6 +291,7 @@ enum nft_set_desc_attributes { * @NFTA_SET_ID: uniquely identifies a set in a transaction (NLA_U32) * @NFTA_SET_TIMEOUT: default timeout value (NLA_U64) * @NFTA_SET_GC_INTERVAL: garbage collection interval (NLA_U32) + * @NFTA_SET_USERDATA: user data (NLA_BINARY) */ enum nft_set_attributes { NFTA_SET_UNSPEC, @@ -306,6 +307,7 @@ enum nft_set_attributes { NFTA_SET_ID, NFTA_SET_TIMEOUT, NFTA_SET_GC_INTERVAL, + NFTA_SET_USERDATA, __NFTA_SET_MAX }; #define NFTA_SET_MAX (__NFTA_SET_MAX - 1) -- cgit v1.2.3