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

#ifndef _IP_NAT_H #define _IP_NAT_H #include <linux/netfilter_ipv4.h> #include <linux/netfilter_ipv4/ip_conntrack_tuple.h> #define IP_NAT_MAPPING_TYPE_MAX_NAMELEN 16 enum ip_nat_manip_type { IP_NAT_MANIP_SRC, IP_NAT_MANIP_DST }; /* SRC manip occurs POST_ROUTING or LOCAL_IN */ #define HOOK2MANIP(hooknum) ((hooknum) != NF_IP_POST_ROUTING && (hooknum) != NF_IP_LOCAL_IN) #define IP_NAT_RANGE_MAP_IPS 1 #define IP_NAT_RANGE_PROTO_SPECIFIED 2 /* NAT sequence number modifications */ struct ip_nat_seq { /* position of the last TCP sequence number * modification (if any) */ u_int32_t correction_pos; /* sequence number offset before and after last modification */ int32_t offset_before, offset_after; }; /* Single range specification. */ struct ip_nat_range { /* Set to OR of flags above. */ unsigned int flags; /* Inclusive: network order. */ u_int32_t min_ip, max_ip; /* Inclusive: network order */ union ip_conntrack_manip_proto min, max; }; /* For backwards compat: don't use in modern code. */ struct ip_nat_multi_range_compat { unsigned int rangesize; /* Must be 1. */ /* hangs off end. */ struct ip_nat_range range[1]; }; #ifdef __KERNEL__ #include <linux/list.h> /* Protects NAT hash tables, and NAT-private part of conntracks. */ extern rwlock_t ip_nat_lock; /* The structure embedded in the conntrack structure. */ struct ip_nat_info { struct list_head bysource; struct ip_nat_seq seq[IP_CT_DIR_MAX]; }; struct ip_conntrack; /* Set up the info structure to map into this range. */ extern unsigned int ip_nat_setup_info(struct ip_conntrack *conntrack, const struct ip_nat_range *range, unsigned int hooknum); /* Is this tuple already taken? (not by us)*/ extern int ip_nat_used_tuple(const struct ip_conntrack_tuple *tuple, const struct ip_conntrack *ignored_conntrack); /* Calculate relative checksum. */ extern u_int16_t ip_nat_cheat_check(u_int32_t oldvalinv, u_int32_t newval, u_int16_t oldcheck); #else /* !__KERNEL__: iptables wants this to compile. */ #define ip_nat_multi_range ip_nat_multi_range_compat #endif /*__KERNEL__*/ #endif