41d4822677
silly differences between the NetBSD copy of the code and the vendor branch, keeping only those which are necessary. Of those differences that currently exist, several "portability to NetBSD" issues, which will be fed back to the ipfilter author.
178 lines
4.5 KiB
C
178 lines
4.5 KiB
C
/* $NetBSD: ip_nat.h,v 1.7 1997/05/28 00:17:22 thorpej Exp $ */
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/*
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* (C)opyright 1995-1997 by Darren Reed.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and due credit is given
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* to the original author and the contributors.
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*
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* @(#)ip_nat.h 1.5 2/4/96
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* Id: ip_nat.h,v 2.0.2.12 1997/05/24 07:35:20 darrenr Exp
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*/
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#ifndef __IP_NAT_H__
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#define __IP_NAT_H__
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#ifndef __IP_PROXY_H__
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#include "netinet/ip_proxy.h"
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#endif
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#ifndef SOLARIS
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#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
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#endif
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#if defined(__STDC__) || defined(__GNUC__)
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#define SIOCADNAT _IOW('r', 80, struct ipnat)
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#define SIOCRMNAT _IOW('r', 81, struct ipnat)
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#define SIOCGNATS _IOR('r', 82, struct natstat)
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#define SIOCGNATL _IOWR('r', 83, struct natlookup)
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#define SIOCGFRST _IOR('r', 84, struct ipfrstat)
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#define SIOCGIPST _IOR('r', 85, struct ips_stat)
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#define SIOCFLNAT _IOWR('r', 86, int)
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#define SIOCCNATL _IOWR('r', 87, int)
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#else
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#define SIOCADNAT _IOW(r, 80, struct ipnat)
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#define SIOCRMNAT _IOW(r, 81, struct ipnat)
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#define SIOCGNATS _IOR(r, 82, struct natstat)
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#define SIOCGNATL _IOWR(r, 83, struct natlookup)
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#define SIOCGFRST _IOR(r, 84, struct ipfrstat)
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#define SIOCGIPST _IOR(r, 85, struct ips_stat)
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#define SIOCFLNAT _IOWR(r, 86, int)
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#define SIOCCNATL _IOWR(r, 87, int)
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#endif
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#define NAT_SIZE 367
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typedef struct nat {
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u_long nat_age;
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int nat_flags;
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u_long nat_sumd;
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u_long nat_ipsumd;
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struct ipfr *nat_frag;
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struct in_addr nat_inip;
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struct in_addr nat_outip;
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struct in_addr nat_oip; /* other ip */
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U_QUAD_T nat_pkts;
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U_QUAD_T nat_bytes;
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u_short nat_oport; /* other port */
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u_short nat_inport;
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u_short nat_outport;
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u_short nat_use;
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u_char nat_state[2];
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struct ipnat *nat_ptr;
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struct nat *nat_next;
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struct nat *nat_hnext[2];
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struct nat **nat_hstart[2];
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void *nat_ifp;
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int nat_dir;
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} nat_t;
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typedef struct ipnat {
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struct ipnat *in_next;
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void *in_ifp;
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u_int in_space;
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u_int in_use;
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struct in_addr in_nextip;
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u_short in_pnext;
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u_short in_flags;
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u_short in_port[2];
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struct in_addr in_in[2];
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struct in_addr in_out[2];
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struct aproxy *in_apr;
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int in_redir; /* 0 if it's a mapping, 1 if it's a hard redir */
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char in_ifname[IFNAMSIZ];
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char in_plabel[APR_LABELLEN]; /* proxy label */
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char in_p; /* protocol */
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u_short in_dport;
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} ipnat_t;
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#define in_pmin in_port[0] /* Also holds static redir port */
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#define in_pmax in_port[1]
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#define in_nip in_nextip.s_addr
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#define in_inip in_in[0].s_addr
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#define in_inmsk in_in[1].s_addr
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#define in_outip in_out[0].s_addr
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#define in_outmsk in_out[1].s_addr
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#define NAT_OUTBOUND 0
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#define NAT_INBOUND 1
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#define NAT_MAP 0x01
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#define NAT_REDIRECT 0x02
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#define NAT_BIMAP (NAT_MAP|NAT_REDIRECT)
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#define IPN_CMPSIZ (sizeof(struct in_addr) * 4 + sizeof(u_short) * 3 + \
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sizeof(int))
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typedef struct natlookup {
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struct in_addr nl_inip;
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struct in_addr nl_outip;
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u_short nl_inport;
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u_short nl_outport;
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} natlookup_t;
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typedef struct natstat {
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u_long ns_mapped[2];
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u_long ns_rules;
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u_long ns_added;
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u_long ns_expire;
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u_long ns_inuse;
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u_long ns_logged;
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u_long ns_logfail;
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nat_t **ns_table[2];
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ipnat_t *ns_list;
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} natstat_t;
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#define IPN_ANY 0x00
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#define IPN_TCP 0x01
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#define IPN_UDP 0x02
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#define IPN_TCPUDP 0x03
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#define IPN_DELETE 0x04
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typedef struct natlog {
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struct timeval nl_tv;
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struct in_addr nl_origip;
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struct in_addr nl_outip;
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struct in_addr nl_inip;
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u_short nl_origport;
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u_short nl_outport;
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u_short nl_inport;
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u_short nl_type;
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int nl_rule;
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U_QUAD_T nl_pkts;
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U_QUAD_T nl_bytes;
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} natlog_t;
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#define NL_NEWMAP NAT_MAP
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#define NL_NEWRDR NAT_REDIRECT
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#define NL_EXPIRE 0xffff
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extern u_long fr_defnatage;
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extern nat_t *nat_table[2][NAT_SIZE];
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#if defined(__NetBSD__)
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extern int nat_ioctl __P((caddr_t, u_long, int));
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#else
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extern int nat_ioctl __P((caddr_t, int, int));
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#endif
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extern nat_t *nat_new __P((ipnat_t *, ip_t *, fr_info_t *, u_short, int));
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extern nat_t *nat_outlookup __P((void *, int, struct in_addr, u_short,
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struct in_addr, u_short));
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extern nat_t *nat_inlookup __P((void *, int, struct in_addr, u_short,
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struct in_addr, u_short));
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extern nat_t *nat_lookupredir __P((natlookup_t *));
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extern nat_t *nat_lookupmapip __P((void *, int, struct in_addr, u_short,
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struct in_addr, u_short));
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extern int ip_natout __P((ip_t *, int, fr_info_t *));
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extern int ip_natin __P((ip_t *, int, fr_info_t *));
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extern void ip_natunload __P((void)), ip_natexpire __P((void));
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extern void nat_log __P((struct nat *, u_short));
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extern void fix_incksum __P((u_short *, u_long));
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extern void fix_outcksum __P((u_short *, u_long));
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#endif /* __IP_NAT_H__ */
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