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1/* $NetBSD: ip_frag.h,v 1.3 2012/07/22 14:27:51 darrenr Exp $ */
2
3/*
4 * Copyright (C) 2012 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * @(#)ip_frag.h 1.5 3/24/96
9 * Id: ip_frag.h,v 1.1.1.2 2012/07/22 13:45:17 darrenr Exp
10 */
11
12#ifndef _NETINET_IP_FRAG_H_
13#define _NETINET_IP_FRAG_H_
14
15#define IPFT_SIZE 257
16
17typedef struct ipfr {
18 struct ipfr *ipfr_hnext, **ipfr_hprev;
19 struct ipfr *ipfr_next, **ipfr_prev;
20 void *ipfr_data;
21 frentry_t *ipfr_rule;
22 u_long ipfr_ttl;
23 u_int ipfr_pkts;
24 u_int ipfr_bytes;
25 u_int ipfr_badorder;
26 int ipfr_ref;
27 u_short ipfr_off;
28 u_short ipfr_firstend;
29 u_char ipfr_p;
30 u_char ipfr_seen0;
31 /*
32 * All of the fields, from ipfr_ifp to ipfr_pass, are compared
33 * using bcmp to see if an identical entry is present. It is
34 * therefore important for this set to remain together.
35 */
36 void *ipfr_ifp;
37 i6addr_t ipfr_source;
38 i6addr_t ipfr_dest;
39 u_32_t ipfr_optmsk;
40 u_short ipfr_secmsk;
41 u_short ipfr_auth;
42 u_32_t ipfr_id;
43 u_32_t ipfr_pass;
44 int ipfr_v;
45} ipfr_t;
46
47#define ipfr_src ipfr_source.in4
48#define ipfr_dst ipfr_dest.in4
49
50
51typedef struct ipfrstat {
52 u_long ifs_exists; /* add & already exists */
53 u_long ifs_nomem;
54 u_long ifs_new;
55 u_long ifs_hits;
56 u_long ifs_expire;
57 u_long ifs_inuse;
58 u_long ifs_retrans0;
59 u_long ifs_short;
60 u_long ifs_bad;
61 u_long ifs_overlap;
62 u_long ifs_unordered;
63 u_long ifs_strict;
64 u_long ifs_miss;
65 u_long ifs_maximum;
66 u_long ifs_newbad;
67 u_long ifs_newrestrictnot0;
68 struct ipfr **ifs_table;
69 struct ipfr **ifs_nattab;
70} ipfrstat_t;
71
72#define IPFR_CMPSZ (offsetof(ipfr_t, ipfr_pass) - \
73 offsetof(ipfr_t, ipfr_ifp))
74
75extern void *ipf_frag_soft_create(ipf_main_softc_t *);
76extern int ipf_frag_soft_init(ipf_main_softc_t *, void *);
77extern int ipf_frag_soft_fini(ipf_main_softc_t *, void *);
78extern void ipf_frag_soft_destroy(ipf_main_softc_t *, void *);
79extern int ipf_frag_main_load(void);
80extern int ipf_frag_main_unload(void);
81extern int ipf_frag_load(void);
82extern void ipf_frag_clear(ipf_main_softc_t *);
83extern void ipf_frag_expire(ipf_main_softc_t *);
84extern void ipf_frag_forget(void *);
85extern int ipf_frag_init(void);
86extern u_32_t ipf_frag_ipidknown(fr_info_t *);
87extern int ipf_frag_ipidnew(fr_info_t *, u_32_t);
88extern frentry_t *ipf_frag_known(fr_info_t *, u_32_t *);
89extern void ipf_frag_natforget(ipf_main_softc_t *, void *);
90extern int ipf_frag_natnew(ipf_main_softc_t *, fr_info_t *, u_32_t, struct nat *);
91extern nat_t *ipf_frag_natknown(fr_info_t *);
92extern int ipf_frag_new(ipf_main_softc_t *, fr_info_t *, u_32_t);
93extern ipfrstat_t *ipf_frag_stats(void *);
94extern void ipf_frag_setlock(void *, int);
95extern void ipf_frag_pkt_deref(ipf_main_softc_t *, void *);
96extern int ipf_frag_pkt_next(ipf_main_softc_t *, ipftoken_t *,
97 ipfgeniter_t *);
98extern void ipf_frag_nat_deref(ipf_main_softc_t *, void *);
99extern int ipf_frag_nat_next(ipf_main_softc_t *, ipftoken_t *,
100 ipfgeniter_t *);
101extern void ipf_slowtimer(ipf_main_softc_t *);
102
103#endif /* _NETINET_IP_FRAG_H_ */