diff options
Diffstat (limited to 'sys/contrib/ipfilter/netinet/ip_frag.h')
| -rw-r--r-- | sys/contrib/ipfilter/netinet/ip_frag.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/sys/contrib/ipfilter/netinet/ip_frag.h b/sys/contrib/ipfilter/netinet/ip_frag.h new file mode 100644 index 0000000..227dbcd --- /dev/null +++ b/sys/contrib/ipfilter/netinet/ip_frag.h @@ -0,0 +1,108 @@ +/* $FreeBSD$ */ + +/* + * Copyright (C) 1993-2001 by Darren Reed. + * + * See the IPFILTER.LICENCE file for details on licencing. + * + * @(#)ip_frag.h 1.5 3/24/96 + * $FreeBSD$ + * Id: ip_frag.h,v 2.23.2.1 2004/03/29 16:21:56 darrenr Exp + */ + +#ifndef __IP_FRAG_H__ +#define __IP_FRAG_H__ + +#define IPFT_SIZE 257 + +typedef struct ipfr { + struct ipfr *ipfr_hnext, **ipfr_hprev; + struct ipfr *ipfr_next, **ipfr_prev; + void *ipfr_data; + frentry_t *ipfr_rule; + u_long ipfr_ttl; + int ipfr_ref; + u_short ipfr_off; + u_short ipfr_seen0; + /* + * All of the fields, from ipfr_ifp to ipfr_pass, are compared + * using bcmp to see if an identical entry is present. It is + * therefore important for this set to remain together. + */ + void *ipfr_ifp; + struct in_addr ipfr_src; + struct in_addr ipfr_dst; + u_32_t ipfr_optmsk; + u_short ipfr_secmsk; + u_short ipfr_auth; + u_short ipfr_id; + u_char ipfr_p; + u_char ipfr_tos; + u_32_t ipfr_pass; +} ipfr_t; + + +typedef struct ipfrstat { + u_long ifs_exists; /* add & already exists */ + u_long ifs_nomem; + u_long ifs_new; + u_long ifs_hits; + u_long ifs_expire; + u_long ifs_inuse; + u_long ifs_retrans0; + u_long ifs_short; + struct ipfr **ifs_table; + struct ipfr **ifs_nattab; +} ipfrstat_t; + +#define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_pass) - \ + offsetof(ipfr_t, ipfr_ifp)) + +extern ipfr_t *ipfr_list, **ipfr_tail; +extern ipfr_t *ipfr_natlist, **ipfr_nattail; +extern int ipfr_size; +extern int fr_ipfrttl; +extern int fr_frag_lock; +extern int fr_fraginit __P((void)); +extern void fr_fragunload __P((void)); +extern ipfrstat_t *fr_fragstats __P((void)); + +extern int fr_newfrag __P((fr_info_t *, u_32_t)); +extern frentry_t *fr_knownfrag __P((fr_info_t *, u_32_t *)); + +extern int fr_nat_newfrag __P((fr_info_t *, u_32_t, struct nat *)); +extern nat_t *fr_nat_knownfrag __P((fr_info_t *)); + +extern int fr_ipid_newfrag __P((fr_info_t *, u_32_t)); +extern u_32_t fr_ipid_knownfrag __P((fr_info_t *)); +#ifdef USE_MUTEXES +extern void fr_fragderef __P((ipfr_t **, ipfrwlock_t *)); +extern int fr_nextfrag __P((ipftoken_t *, ipfgeniter_t *, ipfr_t **, \ + ipfr_t ***, ipfrwlock_t *)); +#else +extern void fr_fragderef __P((ipfr_t **)); +extern int fr_nextfrag __P((ipftoken_t *, ipfgeniter_t *, ipfr_t **, \ + ipfr_t ***)); +#endif + +extern void fr_forget __P((void *)); +extern void fr_forgetnat __P((void *)); +extern void fr_fragclear __P((void)); +extern void fr_fragexpire __P((void)); + +#if defined(_KERNEL) && ((BSD >= 199306) || SOLARIS || defined(__sgi) \ + || defined(__osf__) || (defined(__sgi) && (IRIX >= 60500))) +# if defined(SOLARIS2) && (SOLARIS2 < 7) +extern void fr_slowtimer __P((void)); +# else +extern void fr_slowtimer __P((void *)); +# endif +#else +# if defined(linux) && defined(_KERNEL) +extern void fr_slowtimer __P((long)); +# else +extern int fr_slowtimer __P((void)); +# endif +#endif + +#endif /* __IP_FRAG_H__ */ |
