1 /* 2 * Copyright (C) 1993-2001 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * 6 * @(#)ip_frag.h 1.5 3/24/96 7 * $Id: ip_frag.h,v 2.23.2.2 2005/06/10 18:02:37 darrenr Exp $ 8 * 9 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 10 * Use is subject to license terms. 11 */ 12 13 #ifndef __IP_FRAG_H__ 14 #define __IP_FRAG_H__ 15 16 #define IPFT_SIZE 257 17 18 typedef struct ipfr { 19 struct ipfr *ipfr_hnext, **ipfr_hprev; 20 struct ipfr *ipfr_next, **ipfr_prev; 21 void *ipfr_data; 22 void *ipfr_ifp; 23 i6addr_t ipfr_src; 24 i6addr_t ipfr_dst; 25 u_32_t ipfr_optmsk; 26 u_short ipfr_secmsk; 27 u_short ipfr_auth; 28 u_32_t ipfr_id; 29 u_32_t ipfr_p; 30 u_32_t ipfr_tos; 31 u_32_t ipfr_pass; 32 u_short ipfr_off; 33 u_long ipfr_ttl; 34 u_char ipfr_seen0; 35 frentry_t *ipfr_rule; 36 int ipfr_ref; 37 } ipfr_t; 38 39 typedef struct ipfrstat { 40 u_long ifs_exists; /* add & already exists */ 41 u_long ifs_nomem; 42 u_long ifs_new; 43 u_long ifs_hits; 44 u_long ifs_expire; 45 u_long ifs_inuse; 46 u_long ifs_retrans0; 47 u_long ifs_short; 48 struct ipfr **ifs_table; 49 struct ipfr **ifs_nattab; 50 } ipfrstat_t; 51 52 #define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_tos) - \ 53 offsetof(ipfr_t, ipfr_ifp)) 54 55 extern int fr_fraginit __P((ipf_stack_t *)); 56 extern void fr_fragunload __P((ipf_stack_t *)); 57 extern ipfrstat_t *fr_fragstats __P((ipf_stack_t *)); 58 59 extern int fr_newfrag __P((fr_info_t *, u_32_t)); 60 extern frentry_t *fr_knownfrag __P((fr_info_t *, u_32_t *)); 61 62 extern int fr_nat_newfrag __P((fr_info_t *, u_32_t, struct nat *)); 63 extern nat_t *fr_nat_knownfrag __P((fr_info_t *)); 64 65 extern int fr_ipid_newfrag __P((fr_info_t *, u_32_t)); 66 extern u_32_t fr_ipid_knownfrag __P((fr_info_t *)); 67 extern void fr_fragderef __P((ipfr_t **, ipfrwlock_t *, ipf_stack_t *)); 68 69 extern void fr_forget __P((void *, ipf_stack_t *)); 70 extern void fr_forgetnat __P((void *, ipf_stack_t *)); 71 extern void fr_fragclear __P((ipf_stack_t *)); 72 extern void fr_fragexpire __P((ipf_stack_t *)); 73 extern int fr_nextfrag __P((ipftoken_t *, ipfgeniter_t *, ipfr_t **, \ 74 ipfr_t ***, ipfrwlock_t *, ipf_stack_t *)); 75 76 #if defined(_KERNEL) && ((BSD >= 199306) || SOLARIS || defined(__sgi) \ 77 || defined(__osf__) || (defined(__sgi) && (IRIX >= 60500))) 78 # if defined(SOLARIS2) && (SOLARIS2 < 7) 79 extern void fr_slowtimer __P((void *)); 80 # else 81 extern void fr_slowtimer __P((void *)); 82 # endif 83 #else 84 # if defined(linux) && defined(_KERNEL) 85 extern void fr_slowtimer __P((long)); 86 # else 87 extern int fr_slowtimer __P((void *)); 88 # endif 89 #endif 90 91 #endif /* __IP_FRAG_H__ */ 92