| 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 | |
| 17 | typedef 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 | |
| 51 | typedef 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 | |
| 75 | extern void *ipf_frag_soft_create(ipf_main_softc_t *); |
| 76 | extern int ipf_frag_soft_init(ipf_main_softc_t *, void *); |
| 77 | extern int ipf_frag_soft_fini(ipf_main_softc_t *, void *); |
| 78 | extern void ipf_frag_soft_destroy(ipf_main_softc_t *, void *); |
| 79 | extern int ipf_frag_main_load(void); |
| 80 | extern int ipf_frag_main_unload(void); |
| 81 | extern int ipf_frag_load(void); |
| 82 | extern void ipf_frag_clear(ipf_main_softc_t *); |
| 83 | extern void ipf_frag_expire(ipf_main_softc_t *); |
| 84 | extern void ipf_frag_forget(void *); |
| 85 | extern int ipf_frag_init(void); |
| 86 | extern u_32_t ipf_frag_ipidknown(fr_info_t *); |
| 87 | extern int ipf_frag_ipidnew(fr_info_t *, u_32_t); |
| 88 | extern frentry_t *ipf_frag_known(fr_info_t *, u_32_t *); |
| 89 | extern void ipf_frag_natforget(ipf_main_softc_t *, void *); |
| 90 | extern int ipf_frag_natnew(ipf_main_softc_t *, fr_info_t *, u_32_t, struct nat *); |
| 91 | extern nat_t *ipf_frag_natknown(fr_info_t *); |
| 92 | extern int ipf_frag_new(ipf_main_softc_t *, fr_info_t *, u_32_t); |
| 93 | extern ipfrstat_t *ipf_frag_stats(void *); |
| 94 | extern void ipf_frag_setlock(void *, int); |
| 95 | extern void ipf_frag_pkt_deref(ipf_main_softc_t *, void *); |
| 96 | extern int ipf_frag_pkt_next(ipf_main_softc_t *, ipftoken_t *, |
| 97 | ipfgeniter_t *); |
| 98 | extern void ipf_frag_nat_deref(ipf_main_softc_t *, void *); |
| 99 | extern int ipf_frag_nat_next(ipf_main_softc_t *, ipftoken_t *, |
| 100 | ipfgeniter_t *); |
| 101 | extern void ipf_slowtimer(ipf_main_softc_t *); |
| 102 | |
| 103 | #endif /* _NETINET_IP_FRAG_H_ */ |
| 104 | |