1/* $NetBSD: ip_scan.h,v 1.7 2009/08/19 08:36:13 darrenr Exp $ */ 2 3/* 4 * Copyright (C) 1993-2001 by Darren Reed. 5 * 6 * See the IPFILTER.LICENCE file for details on licencing. 7 * 8 * @(#)ip_fil.h 1.35 6/5/96 9 * Id: ip_scan.h,v 2.9.2.2 2006/07/14 06:12:19 darrenr Exp 10 */ 11 12#ifndef __IP_SCAN_H__ 13#define __IP_SCAN_H__ 1 14 15#ifdef sun 16# include <sys/ioccom.h> 17#endif 18 19#define IPSCAN_NAME "/dev/ipscan" 20#define IPL_SCAN IPSCAN_NAME 21#define ISC_TLEN 16 22 23 24struct fr_info; 25struct frentry; 26struct ip; 27struct ipstate; 28 29 30#if defined(__STDC__) || defined(__GNUC__) || defined(_AIX51) 31# define SIOCADSCA _IOWR('r', 60, struct ipscan *) 32# define SIOCRMSCA _IOWR('r', 61, struct ipscan *) 33# define SIOCGSCST _IOWR('r', 62, struct ipscan *) 34#else 35# define SIOCADSCA _IOWR(r, 60, struct ipscan *) 36# define SIOCRMSCA _IOWR(r, 61, struct ipscan *) 37# define SIOCGSCST _IOWR(r, 62, struct ipscan *) 38#endif 39 40struct action { 41 int act_val; /* what to do */ 42 struct in_addr act_ip; /* redirect IP# */ 43 u_short act_port; /* redirect port number */ 44 int act_else; /* what to do */ 45 struct in_addr act_eip; /* redirect IP# */ 46 u_short act_eport; /* redirect port number */ 47}; 48 49 50typedef struct sinfo { 51 char s_txt[ISC_TLEN]; /* text to match */ 52 char s_msk[ISC_TLEN]; /* mask of the above to check */ 53 int s_len; /* length of server text */ 54} sinfo_t; 55 56 57typedef struct ipscan { 58 struct ipscan *ipsc_next; 59 struct ipscan **ipsc_pnext; 60 char ipsc_tag[ISC_TLEN]; /* table entry protocol tag */ 61 sinfo_t ipsc_si[2]; /* client/server side information */ 62 int ipsc_hits; /* times this has been matched */ 63 int ipsc_active; /* # of active matches */ 64 int ipsc_fref; /* # of references from filter rules */ 65 int ipsc_sref; /* # of references from state entries */ 66 struct action ipsc_act; 67} ipscan_t; 68 69 70#define ipsc_cl ipsc_si[0] 71#define ipsc_sl ipsc_si[1] 72#define ipsc_ctxt ipsc_cl.s_txt 73#define ipsc_cmsk ipsc_cl.s_msk 74#define ipsc_clen ipsc_cl.s_len 75#define ipsc_stxt ipsc_sl.s_txt 76#define ipsc_smsk ipsc_sl.s_msk 77#define ipsc_slen ipsc_sl.s_len 78#define ipsc_action ipsc_act.act_val 79#define ipsc_ip ipsc_act.act_ip 80#define ipsc_port ipsc_act.act_port 81#define ipsc_else ipsc_act.act_else 82#define ipsc_eip ipsc_act.act_eip 83#define ipsc_eport ipsc_act.act_eport 84 85#define ISC_A_NONE 0 86#define ISC_A_TRACK 1 87#define ISC_A_CLOSE 2 88#define ISC_A_REDIRECT 3 89 90 91typedef struct ipscanstat { 92 struct ipscan *iscs_list; 93 u_long iscs_acted; 94 u_long iscs_else; 95 int iscs_entries; 96} ipscanstat_t; 97 98 99extern int fr_scan_ioctl(void *, ioctlcmd_t, int, int, void *); 100extern int ipsc_init(void); 101extern int ipsc_attachis(struct ipstate *); 102extern int ipsc_attachfr(struct frentry *); 103extern int ipsc_detachis(struct ipstate *); 104extern int ipsc_detachfr(struct frentry *); 105extern int ipsc_packet(struct fr_info *, struct ipstate *); 106extern void fr_scanunload(void); 107 108#endif /* __IP_SCAN_H__ */ 109