http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/netfilter_ipv4/ip_nat_protocol.h

/* Header for use in defining a given protocol. */ #ifndef _IP_NAT_PROTOCOL_H #define _IP_NAT_PROTOCOL_H #include <linux/init.h> #include <linux/list.h> #include <linux/netfilter_ipv4/ip_nat.h> #include <linux/netfilter/nfnetlink_conntrack.h> struct iphdr; struct ip_nat_range; struct ip_nat_protocol { /* Protocol name */ const char *name; /* Protocol number. */ unsigned int protonum; struct module *me; /* Translate a packet to the target according to manip type. Return true if succeeded. */ int (*manip_pkt)(struct sk_buff **pskb, unsigned int iphdroff, const struct ip_conntrack_tuple *tuple, enum ip_nat_manip_type maniptype); /* Is the manipable part of the tuple between min and max incl? */ int (*in_range)(const struct ip_conntrack_tuple *tuple, enum ip_nat_manip_type maniptype, const union ip_conntrack_manip_proto *min, const union ip_conntrack_manip_proto *max); /* Alter the per-proto part of the tuple (depending on maniptype), to give a unique tuple in the given range if possible; return false if not. Per-protocol part of tuple is initialized to the incoming packet. */ int (*unique_tuple)(struct ip_conntrack_tuple *tuple, const struct ip_nat_range *range, enum ip_nat_manip_type maniptype, const struct ip_conntrack *conntrack); int (*range_to_nfattr)(struct sk_buff *skb, const struct ip_nat_range *range); int (*nfattr_to_range)(struct nfattr *tb[], struct ip_nat_range *range); }; /* Protocol registration. */ extern int ip_nat_protocol_register(struct ip_nat_protocol *proto); extern void ip_nat_protocol_unregister(struct ip_nat_protocol *proto); extern struct ip_nat_protocol *ip_nat_proto_find_get(u_int8_t protocol); extern void ip_nat_proto_put(struct ip_nat_protocol *proto); /* Built-in protocols. */ extern struct ip_nat_protocol ip_nat_protocol_tcp; extern struct ip_nat_protocol ip_nat_protocol_udp; extern struct ip_nat_protocol ip_nat_protocol_icmp; extern struct ip_nat_protocol ip_nat_unknown_protocol; extern int init_protocols(void) __init; extern void cleanup_protocols(void); extern struct ip_nat_protocol *find_nat_proto(u_int16_t protonum); extern int ip_nat_port_range_to_nfattr(struct sk_buff *skb, const struct ip_nat_range *range); extern int ip_nat_port_nfattr_to_range(struct nfattr *tb[], struct ip_nat_range *range); #endif /*_IP_NAT_PROTO_H*/