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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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include/net/netfilter/nf_tables.h
+4
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@@ -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;