From 40cd63bf33b21ef4d43776b1d49c605f876fe32c Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 9 Sep 2013 14:44:29 +0200 Subject: netfilter: ipset: Support extensions which need a per data destroy function Signed-off-by: Jozsef Kadlecsik --- include/linux/netfilter/ipset/ip_set.h | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) (limited to 'include/linux/netfilter') diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index 66d6bd404d64..6372ee224fe8 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -49,11 +49,13 @@ enum ip_set_feature { /* Set extensions */ enum ip_set_extension { - IPSET_EXT_NONE = 0, - IPSET_EXT_BIT_TIMEOUT = 1, + IPSET_EXT_BIT_TIMEOUT = 0, IPSET_EXT_TIMEOUT = (1 << IPSET_EXT_BIT_TIMEOUT), - IPSET_EXT_BIT_COUNTER = 2, + IPSET_EXT_BIT_COUNTER = 1, IPSET_EXT_COUNTER = (1 << IPSET_EXT_BIT_COUNTER), + /* Mark set with an extension which needs to call destroy */ + IPSET_EXT_BIT_DESTROY = 7, + IPSET_EXT_DESTROY = (1 << IPSET_EXT_BIT_DESTROY), }; #define SET_WITH_TIMEOUT(s) ((s)->extensions & IPSET_EXT_TIMEOUT) @@ -68,6 +70,8 @@ enum ip_set_ext_id { /* Extension type */ struct ip_set_ext_type { + /* Destroy extension private data (can be NULL) */ + void (*destroy)(void *ext); enum ip_set_extension type; enum ipset_cadt_flags flag; /* Size and minimal alignment */ @@ -88,13 +92,21 @@ struct ip_set_counter { atomic64_t packets; }; +struct ip_set; + +static inline void +ip_set_ext_destroy(struct ip_set *set, void *data) +{ + /* Check that the extension is enabled for the set and + * call it's destroy function for its extension part in data. + */ +} + #define ext_timeout(e, s) \ (unsigned long *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_TIMEOUT]) #define ext_counter(e, s) \ (struct ip_set_counter *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COUNTER]) -struct ip_set; - typedef int (*ipset_adtfn)(struct ip_set *set, void *value, const struct ip_set_ext *ext, struct ip_set_ext *mext, u32 cmdflags); -- cgit v1.2.3