diff options
Diffstat (limited to 'sys/contrib/ipfilter/netinet/ip_nat.h')
| -rw-r--r-- | sys/contrib/ipfilter/netinet/ip_nat.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sys/contrib/ipfilter/netinet/ip_nat.h b/sys/contrib/ipfilter/netinet/ip_nat.h new file mode 100644 index 0000000..d64183a --- /dev/null +++ b/sys/contrib/ipfilter/netinet/ip_nat.h @@ -0,0 +1,118 @@ +/* + * (C)opyright 1995 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 2.0.1.7 1997/01/30 12:39:41 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 + +typedef struct nat { + int nat_age; + u_long nat_sumd; + u_long nat_ipsumd; + struct in_addr nat_inip; + struct in_addr nat_outip; + struct in_addr nat_oip; /* other ip */ + 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]; +} 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]; + int in_redir; /* 0 if it's a mapping, 1 if it's a hard redir */ + char in_ifname[IFNAMSIZ]; +} 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_INBOUND 0 +#define NAT_OUTBOUND 1 + +#define NAT_MAP 0 +#define NAT_REDIRECT 1 + +#define IPN_CMPSIZ (sizeof(struct in_addr) * 4 + sizeof(u_short) * 3 + \ + sizeof(int)) + +typedef struct natlookup { + struct in_addr nl_inip; + struct in_addr nl_outip; + u_short nl_inport; + u_short nl_outport; +} natlookup_t; + +typedef struct natstat { + u_long ns_mapped[2]; + u_long ns_added; + u_long ns_expire; + u_long ns_inuse; + nat_t **ns_table[2]; + ipnat_t *ns_list; +} natstat_t; + +#define IPN_ANY 0 +#define IPN_TCP 1 +#define IPN_UDP 2 +#define IPN_TCPUDP 3 + +extern nat_t *nat_table[2][NAT_SIZE]; +extern int nat_ioctl(); +extern nat_t *nat_outlookup(), *nat_inlookup(), *nat_lookupredir(); +extern int ip_natout(), ip_natin(); +extern void ip_natunload(), ip_natexpire(); +#endif /* __IP_NAT_H__ */ |
