diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-02-01 16:18:31 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-06-16 15:08:49 +0200 |
| commit | 3cf4c7e381d9a98a44fd86207b950bd8fef55d20 (patch) | |
| tree | bc7edfd5d84a7bf32aabbdd8352da0a9bed931a3 /include | |
| parent | 3a8fc53a45c444400259e2e285ba414a87061e3d (diff) | |
netfilter: nf_ct_ext: support variable length extensions
We can now define conntrack extensions of variable size. This
patch is useful to get rid of these unions:
union nf_conntrack_help
union nf_conntrack_proto
union nf_conntrack_nat_help
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_extend.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h index 96755c3798a..8b4d1fc2909 100644 --- a/include/net/netfilter/nf_conntrack_extend.h +++ b/include/net/netfilter/nf_conntrack_extend.h @@ -80,10 +80,13 @@ static inline void nf_ct_ext_free(struct nf_conn *ct) } /* Add this type, returns pointer to data or NULL. */ -void * -__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp); +void *__nf_ct_ext_add_length(struct nf_conn *ct, enum nf_ct_ext_id id, + size_t var_alloc_len, gfp_t gfp); + #define nf_ct_ext_add(ct, id, gfp) \ - ((id##_TYPE *)__nf_ct_ext_add((ct), (id), (gfp))) + ((id##_TYPE *)__nf_ct_ext_add_length((ct), (id), 0, (gfp))) +#define nf_ct_ext_add_length(ct, id, len, gfp) \ + ((id##_TYPE *)__nf_ct_ext_add_length((ct), (id), (len), (gfp))) #define NF_CT_EXT_F_PREALLOC 0x0001 |