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netfilter: ipset: Generalize extensions support

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Get rid of the structure based extensions and introduce a blob for
the extensions. Thus we can support more extension types easily.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
This commit is contained in:
Jozsef Kadlecsik
2013-09-07 00:43:52 +02:00
parent ca134ce864
commit 03c8b234e6
14 changed files with 118 additions and 749 deletions
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include/linux/netfilter/ipset/ip_set.h
+13
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@@ -66,6 +66,17 @@ enum ip_set_ext_id {
IPSET_EXT_ID_MAX,
};
/* Extension type */
struct ip_set_ext_type {
enum ip_set_extension type;
enum ipset_cadt_flags flag;
/* Size and minimal alignment */
u8 len;
u8 align;
};
extern const struct ip_set_ext_type ip_set_extensions[];
struct ip_set_ext {
u64 packets;
u64 bytes;
@@ -283,6 +294,8 @@ extern void *ip_set_alloc(size_t size);
extern void ip_set_free(void *members);
extern int ip_set_get_ipaddr4(struct nlattr *nla, __be32 *ipaddr);
extern int ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr);
extern size_t ip_set_elem_len(struct ip_set *set, struct nlattr *tb[],
size_t len);
extern int ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[],
struct ip_set_ext *ext);