diff options
Diffstat (limited to 'include/net/netfilter/nf_conntrack_helper.h')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_helper.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h index ec52a8dc32fd..44b5a00a9c64 100644 --- a/include/net/netfilter/nf_conntrack_helper.h +++ b/include/net/netfilter/nf_conntrack_helper.h @@ -15,6 +15,11 @@ #include <net/netfilter/nf_conntrack_extend.h> #include <net/netfilter/nf_conntrack_expect.h> +#define NF_NAT_HELPER_PREFIX "ip_nat_" +#define NF_NAT_HELPER_NAME(name) NF_NAT_HELPER_PREFIX name +#define MODULE_ALIAS_NF_NAT_HELPER(name) \ + MODULE_ALIAS(NF_NAT_HELPER_NAME(name)) + struct module; enum nf_ct_helper_flags { @@ -54,6 +59,8 @@ struct nf_conntrack_helper { unsigned int queue_num; /* length of userspace private data stored in nf_conn_help->data */ u16 data_len; + /* name of NAT helper module */ + char nat_mod_name[NF_CT_HELPER_NAME_LEN]; }; /* Must be kept in sync with the classes defined by helpers */ @@ -153,4 +160,21 @@ nf_ct_helper_expectfn_find_by_symbol(const void *symbol); extern struct hlist_head *nf_ct_helper_hash; extern unsigned int nf_ct_helper_hsize; +struct nf_conntrack_nat_helper { + struct list_head list; + char mod_name[NF_CT_HELPER_NAME_LEN]; /* module name */ + struct module *module; /* pointer to self */ +}; + +#define NF_CT_NAT_HELPER_INIT(name) \ + { \ + .mod_name = NF_NAT_HELPER_NAME(name), \ + .module = THIS_MODULE \ + } + +void nf_nat_helper_register(struct nf_conntrack_nat_helper *nat); +void nf_nat_helper_unregister(struct nf_conntrack_nat_helper *nat); +int nf_nat_helper_try_module_get(const char *name, u16 l3num, + u8 protonum); +void nf_nat_helper_put(struct nf_conntrack_helper *helper); #endif /*_NF_CONNTRACK_HELPER_H*/ |