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netfilter: nf_tables: Add new attributes into nft_set to store user data.

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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 <carlosfg@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Carlos Falgueras García
2016-01-05 14:03:32 +01:00
committed by Pablo Neira Ayuso
parent eb075954e9
commit e6d8ecac9e
3 changed files with 26 additions and 1 deletions
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2
include/uapi/linux/netfilter/nf_tables.h
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@@ -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)