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/*
* Copyright (C) 1993-2001 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* @(#)ip_fil.h 1.35 6/5/96
* $Id$
*/
#ifndef __IP_SCAN_H__
#define __IP_SCAN_H__ 1
#ifdef sun
# include <sys/ioccom.h>
#endif
#define IPSCAN_NAME "/dev/ipscan"
#define IPL_SCAN IPSCAN_NAME
#define ISC_TLEN 16
struct fr_info;
struct frentry;
struct ip;
struct ipstate;
#if defined(__STDC__) || defined(__GNUC__) || defined(_AIX51)
# define SIOCADSCA _IOWR('r', 60, struct ipscan *)
# define SIOCRMSCA _IOWR('r', 61, struct ipscan *)
# define SIOCGSCST _IOWR('r', 62, struct ipscan *)
#else
# define SIOCADSCA _IOWR(r, 60, struct ipscan *)
# define SIOCRMSCA _IOWR(r, 61, struct ipscan *)
# define SIOCGSCST _IOWR(r, 62, struct ipscan *)
#endif
struct action {
int act_val; /* what to do */
struct in_addr act_ip; /* redirect IP# */
u_short act_port; /* redirect port number */
int act_else; /* what to do */
struct in_addr act_eip; /* redirect IP# */
u_short act_eport; /* redirect port number */
};
typedef struct sinfo {
char s_txt[ISC_TLEN]; /* text to match */
char s_msk[ISC_TLEN]; /* mask of the above to check */
int s_len; /* length of server text */
} sinfo_t;
typedef struct ipscan {
struct ipscan *ipsc_next;
struct ipscan **ipsc_pnext;
char ipsc_tag[ISC_TLEN]; /* table entry protocol tag */
sinfo_t ipsc_si[2]; /* client/server side information */
int ipsc_hits; /* times this has been matched */
int ipsc_active; /* # of active matches */
int ipsc_fref; /* # of references from filter rules */
int ipsc_sref; /* # of references from state entries */
struct action ipsc_act;
} ipscan_t;
#define ipsc_cl ipsc_si[0]
#define ipsc_sl ipsc_si[1]
#define ipsc_ctxt ipsc_cl.s_txt
#define ipsc_cmsk ipsc_cl.s_msk
#define ipsc_clen ipsc_cl.s_len
#define ipsc_stxt ipsc_sl.s_txt
#define ipsc_smsk ipsc_sl.s_msk
#define ipsc_slen ipsc_sl.s_len
#define ipsc_action ipsc_act.act_val
#define ipsc_ip ipsc_act.act_ip
#define ipsc_port ipsc_act.act_port
#define ipsc_else ipsc_act.act_else
#define ipsc_eip ipsc_act.act_eip
#define ipsc_eport ipsc_act.act_eport
#define ISC_A_NONE 0
#define ISC_A_TRACK 1
#define ISC_A_CLOSE 2
#define ISC_A_REDIRECT 3
typedef struct ipscanstat {
struct ipscan *iscs_list;
u_long iscs_acted;
u_long iscs_else;
int iscs_entries;
} ipscanstat_t;
extern int ipf_scan_ioctl __P((ipf_main_softc_t *, caddr_t, ioctlcmd_t, int, int, void *));
extern int ipf_scan_init __P((void));
extern int ipf_scan_attachis __P((struct ipstate *));
extern int ipf_scan_attachfr __P((struct frentry *));
extern int ipf_scan_detachis __P((struct ipstate *));
extern int ipf_scan_detachfr __P((struct frentry *));
extern int ipf_scan_packet __P((struct fr_info *, struct ipstate *));
extern void ipf_scan_unload __P((ipf_main_softc_t *));
#endif /* __IP_SCAN_H__ */