179 lines
4.6 KiB
C
179 lines
4.6 KiB
C
/* $NetBSD: ip_nat.h,v 1.9 1997/07/06 05:29:20 thorpej Exp $ */
|
|
|
|
/*
|
|
* (C)opyright 1995-1997 by Darren Reed.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that this notice is preserved and due credit is given
|
|
* to the original author and the contributors.
|
|
*
|
|
* @(#)ip_nat.h 1.5 2/4/96
|
|
* Id: ip_nat.h,v 2.0.2.16 1997/06/22 07:05:54 darrenr Exp
|
|
*/
|
|
|
|
#ifndef __IP_NAT_H__
|
|
#define __IP_NAT_H__
|
|
|
|
#ifndef SOLARIS
|
|
#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
|
|
#endif
|
|
|
|
#if defined(__STDC__) || defined(__GNUC__)
|
|
#define SIOCADNAT _IOW('r', 80, struct ipnat)
|
|
#define SIOCRMNAT _IOW('r', 81, struct ipnat)
|
|
#define SIOCGNATS _IOR('r', 82, struct natstat)
|
|
#define SIOCGNATL _IOWR('r', 83, struct natlookup)
|
|
#define SIOCGFRST _IOR('r', 84, struct ipfrstat)
|
|
#define SIOCGIPST _IOR('r', 85, struct ips_stat)
|
|
#define SIOCFLNAT _IOWR('r', 86, int)
|
|
#define SIOCCNATL _IOWR('r', 87, int)
|
|
#else
|
|
#define SIOCADNAT _IOW(r, 80, struct ipnat)
|
|
#define SIOCRMNAT _IOW(r, 81, struct ipnat)
|
|
#define SIOCGNATS _IOR(r, 82, struct natstat)
|
|
#define SIOCGNATL _IOWR(r, 83, struct natlookup)
|
|
#define SIOCGFRST _IOR(r, 84, struct ipfrstat)
|
|
#define SIOCGIPST _IOR(r, 85, struct ips_stat)
|
|
#define SIOCFLNAT _IOWR(r, 86, int)
|
|
#define SIOCCNATL _IOWR(r, 87, int)
|
|
#endif
|
|
|
|
#define NAT_SIZE 367
|
|
#ifndef APR_LABELLEN
|
|
#define APR_LABELLEN 16
|
|
#endif
|
|
|
|
typedef struct nat {
|
|
u_long nat_age;
|
|
int nat_flags;
|
|
u_long nat_sumd;
|
|
u_long nat_ipsumd;
|
|
struct ipfr *nat_frag;
|
|
struct in_addr nat_inip;
|
|
struct in_addr nat_outip;
|
|
struct in_addr nat_oip; /* other ip */
|
|
U_QUAD_T nat_pkts;
|
|
U_QUAD_T nat_bytes;
|
|
u_short nat_oport; /* other port */
|
|
u_short nat_inport;
|
|
u_short nat_outport;
|
|
u_short nat_use;
|
|
u_char nat_state[2];
|
|
struct ipnat *nat_ptr;
|
|
struct nat *nat_next;
|
|
struct nat *nat_hnext[2];
|
|
struct nat **nat_hstart[2];
|
|
void *nat_ifp;
|
|
int nat_dir;
|
|
} nat_t;
|
|
|
|
typedef struct ipnat {
|
|
struct ipnat *in_next;
|
|
void *in_ifp;
|
|
u_int in_space;
|
|
u_int in_use;
|
|
struct in_addr in_nextip;
|
|
u_short in_pnext;
|
|
u_short in_flags;
|
|
u_short in_port[2];
|
|
struct in_addr in_in[2];
|
|
struct in_addr in_out[2];
|
|
void *in_apr;
|
|
int in_redir; /* 0 if it's a mapping, 1 if it's a hard redir */
|
|
char in_ifname[IFNAMSIZ];
|
|
char in_plabel[APR_LABELLEN]; /* proxy label */
|
|
char in_p; /* protocol */
|
|
u_short in_dport;
|
|
} ipnat_t;
|
|
|
|
#define in_pmin in_port[0] /* Also holds static redir port */
|
|
#define in_pmax in_port[1]
|
|
#define in_nip in_nextip.s_addr
|
|
#define in_inip in_in[0].s_addr
|
|
#define in_inmsk in_in[1].s_addr
|
|
#define in_outip in_out[0].s_addr
|
|
#define in_outmsk in_out[1].s_addr
|
|
|
|
#define NAT_OUTBOUND 0
|
|
#define NAT_INBOUND 1
|
|
|
|
#define NAT_MAP 0x01
|
|
#define NAT_REDIRECT 0x02
|
|
#define NAT_BIMAP (NAT_MAP|NAT_REDIRECT)
|
|
|
|
#define IPN_CMPSIZ (sizeof(struct in_addr) * 4 + sizeof(u_short) * 3 + \
|
|
sizeof(int) + IFNAMSIZ)
|
|
|
|
typedef struct natlookup {
|
|
struct in_addr nl_inip;
|
|
struct in_addr nl_outip;
|
|
struct in_addr nl_realip;
|
|
int nl_flags;
|
|
u_short nl_inport;
|
|
u_short nl_outport;
|
|
u_short nl_realport;
|
|
} natlookup_t;
|
|
|
|
typedef struct natstat {
|
|
u_long ns_mapped[2];
|
|
u_long ns_rules;
|
|
u_long ns_added;
|
|
u_long ns_expire;
|
|
u_long ns_inuse;
|
|
u_long ns_logged;
|
|
u_long ns_logfail;
|
|
nat_t **ns_table[2];
|
|
ipnat_t *ns_list;
|
|
} natstat_t;
|
|
|
|
#define IPN_ANY 0x00
|
|
#define IPN_TCP 0x01
|
|
#define IPN_UDP 0x02
|
|
#define IPN_TCPUDP 0x03
|
|
#define IPN_DELETE 0x04
|
|
|
|
|
|
typedef struct natlog {
|
|
struct timeval nl_tv;
|
|
struct in_addr nl_origip;
|
|
struct in_addr nl_outip;
|
|
struct in_addr nl_inip;
|
|
u_short nl_origport;
|
|
u_short nl_outport;
|
|
u_short nl_inport;
|
|
u_short nl_type;
|
|
int nl_rule;
|
|
U_QUAD_T nl_pkts;
|
|
U_QUAD_T nl_bytes;
|
|
} natlog_t;
|
|
|
|
|
|
#define NL_NEWMAP NAT_MAP
|
|
#define NL_NEWRDR NAT_REDIRECT
|
|
#define NL_EXPIRE 0xffff
|
|
|
|
|
|
extern u_long fr_defnatage;
|
|
extern nat_t *nat_table[2][NAT_SIZE];
|
|
#ifdef __NetBSD__
|
|
extern int nat_ioctl __P((caddr_t, u_long, int));
|
|
#else
|
|
extern int nat_ioctl __P((caddr_t, int, int));
|
|
#endif
|
|
extern nat_t *nat_new __P((ipnat_t *, ip_t *, fr_info_t *, u_short, int));
|
|
extern nat_t *nat_outlookup __P((void *, int, struct in_addr, u_short,
|
|
struct in_addr, u_short));
|
|
extern nat_t *nat_inlookup __P((void *, int, struct in_addr, u_short,
|
|
struct in_addr, u_short));
|
|
extern nat_t *nat_lookupredir __P((natlookup_t *));
|
|
extern nat_t *nat_lookupmapip __P((void *, int, struct in_addr, u_short,
|
|
struct in_addr, u_short));
|
|
|
|
extern int ip_natout __P((ip_t *, int, fr_info_t *));
|
|
extern int ip_natin __P((ip_t *, int, fr_info_t *));
|
|
extern void ip_natunload __P((void)), ip_natexpire __P((void));
|
|
extern void nat_log __P((struct nat *, u_short));
|
|
extern void fix_incksum __P((u_short *, u_long));
|
|
extern void fix_outcksum __P((u_short *, u_long));
|
|
#endif /* __IP_NAT_H__ */
|