projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9fb9cbb1 YK |
1 | /* |
| 2 | * connection tracking helpers. | |
| 3 | * | |
| 4 | * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp> | |
| 5 | * - generalize L3 protocol dependent part. | |
| 6 | * | |
| 7 | * Derived from include/linux/netfiter_ipv4/ip_conntrack_helper.h | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef _NF_CONNTRACK_HELPER_H | |
| 11 | #define _NF_CONNTRACK_HELPER_H | |
| 12 | #include <net/netfilter/nf_conntrack.h> | |
| 13 | ||
| 14 | struct module; | |
| 15 | ||
| 16 | struct nf_conntrack_helper | |
| 17 | { | |
| 18 | struct list_head list; /* Internal use. */ | |
| 19 | ||
| 20 | const char *name; /* name of the module */ | |
| 21 | struct module *me; /* pointer to self */ | |
| 22 | unsigned int max_expected; /* Maximum number of concurrent | |
| 23 | * expected connections */ | |
| 24 | unsigned int timeout; /* timeout for expecteds */ | |
| 25 | ||
| 26 | /* Mask of things we will help (compared against server response) */ | |
| 27 | struct nf_conntrack_tuple tuple; | |
| 28 | struct nf_conntrack_tuple mask; | |
| 29 | ||
| 30 | /* Function to call when data passes; return verdict, or -1 to | |
| 31 | invalidate. */ | |
| 32 | int (*help)(struct sk_buff **pskb, | |
| 33 | unsigned int protoff, | |
| 34 | struct nf_conn *ct, | |
| 35 | enum ip_conntrack_info conntrackinfo); | |
| c1d10adb PNA |
36 | |
| 37 | int (*to_nfattr)(struct sk_buff *skb, const struct nf_conn *ct); | |
| 9fb9cbb1 YK |
38 | }; |
| 39 | ||
| 40 | extern int nf_conntrack_helper_register(struct nf_conntrack_helper *); | |
| 41 | extern void nf_conntrack_helper_unregister(struct nf_conntrack_helper *); | |
| 42 | ||
| 9fb9cbb1 | 43 | #endif /*_NF_CONNTRACK_HELPER_H*/ |