153642Sguido/* 2255332Scy * Copyright (C) 2012 by Darren Reed. 353642Sguido * 480482Sdarrenr * See the IPFILTER.LICENCE file for details on licencing. 553642Sguido * 653642Sguido * @(#)ip_fil.h 1.35 6/5/96 757126Sguido * $FreeBSD: stable/10/sys/contrib/ipfilter/netinet/ip_fil.h 349931 2019-07-12 02:14:05Z cy $ 8172776Sdarrenr * Id: ip_fil.h,v 2.170.2.51 2007/10/10 09:48:03 darrenr Exp $ 953642Sguido */ 1053642Sguido 1153642Sguido#ifndef __IP_FIL_H__ 1253642Sguido#define __IP_FIL_H__ 1353642Sguido 14313648Scy#if !defined(linux) || !defined(_KERNEL) 15313648Scy# include <netinet/in.h> 16313648Scy#endif 17313648Scy 18145562Sdarrenr#include "netinet/ip_compat.h" 19255332Scy#include "netinet/ipf_rb.h" 20255332Scy#if NETBSD_GE_REV(104040000) 21255332Scy# include <sys/callout.h> 22255332Scy#endif 23255332Scy#if defined(BSD) && defined(_KERNEL) 24255332Scy# if NETBSD_LT_REV(399000000) || defined(__osf__) || FREEBSD_LT_REV(500043) 25255332Scy# include <sys/select.h> 26255332Scy# else 27255332Scy# include <sys/selinfo.h> 28255332Scy# endif 29255332Scy#endif 30145562Sdarrenr 3153642Sguido#ifndef SOLARIS 32305138Sdim# if defined(sun) && (defined(__svr4__) || defined(__SVR4)) 33305138Sdim# define SOLARIS 1 34305138Sdim# else 35305138Sdim# define SOLARIS 0 36305138Sdim# endif 3753642Sguido#endif 3853642Sguido 3953642Sguido#ifndef __P 4053642Sguido# ifdef __STDC__ 4153642Sguido# define __P(x) x 4253642Sguido# else 4353642Sguido# define __P(x) () 4453642Sguido# endif 4553642Sguido#endif 4653642Sguido 47153876Sguido#if defined(__STDC__) || defined(__GNUC__) || defined(_AIX51) 48145522Sdarrenr# define SIOCADAFR _IOW('r', 60, struct ipfobj) 49145522Sdarrenr# define SIOCRMAFR _IOW('r', 61, struct ipfobj) 5053642Sguido# define SIOCSETFF _IOW('r', 62, u_int) 5153642Sguido# define SIOCGETFF _IOR('r', 63, u_int) 52145522Sdarrenr# define SIOCGETFS _IOWR('r', 64, struct ipfobj) 5353642Sguido# define SIOCIPFFL _IOWR('r', 65, int) 5453642Sguido# define SIOCIPFFB _IOR('r', 66, int) 55145522Sdarrenr# define SIOCADIFR _IOW('r', 67, struct ipfobj) 56145522Sdarrenr# define SIOCRMIFR _IOW('r', 68, struct ipfobj) 5753642Sguido# define SIOCSWAPA _IOR('r', 69, u_int) 58145522Sdarrenr# define SIOCINAFR _IOW('r', 70, struct ipfobj) 59145522Sdarrenr# define SIOCINIFR _IOW('r', 71, struct ipfobj) 6053642Sguido# define SIOCFRENB _IOW('r', 72, u_int) 6153642Sguido# define SIOCFRSYN _IOW('r', 73, u_int) 62145522Sdarrenr# define SIOCFRZST _IOWR('r', 74, struct ipfobj) 63145522Sdarrenr# define SIOCZRLST _IOWR('r', 75, struct ipfobj) 64145522Sdarrenr# define SIOCAUTHW _IOWR('r', 76, struct ipfobj) 65145522Sdarrenr# define SIOCAUTHR _IOWR('r', 77, struct ipfobj) 66170268Sdarrenr# define SIOCSTAT1 _IOWR('r', 78, struct ipfobj) 6760851Sdarrenr# define SIOCSTLCK _IOWR('r', 79, u_int) 68145522Sdarrenr# define SIOCSTPUT _IOWR('r', 80, struct ipfobj) 69145522Sdarrenr# define SIOCSTGET _IOWR('r', 81, struct ipfobj) 70145522Sdarrenr# define SIOCSTGSZ _IOWR('r', 82, struct ipfobj) 71170268Sdarrenr# define SIOCSTAT2 _IOWR('r', 83, struct ipfobj) 72145522Sdarrenr# define SIOCSETLG _IOWR('r', 84, int) 73145522Sdarrenr# define SIOCGETLG _IOWR('r', 85, int) 74145522Sdarrenr# define SIOCFUNCL _IOWR('r', 86, struct ipfunc_resolve) 75145522Sdarrenr# define SIOCIPFGETNEXT _IOWR('r', 87, struct ipfobj) 76145522Sdarrenr# define SIOCIPFGET _IOWR('r', 88, struct ipfobj) 77145522Sdarrenr# define SIOCIPFSET _IOWR('r', 89, struct ipfobj) 78145522Sdarrenr# define SIOCIPFL6 _IOWR('r', 90, int) 79170268Sdarrenr# define SIOCIPFITER _IOWR('r', 91, struct ipfobj) 80170268Sdarrenr# define SIOCGENITER _IOWR('r', 92, struct ipfobj) 81170268Sdarrenr# define SIOCGTABL _IOWR('r', 93, struct ipfobj) 82170268Sdarrenr# define SIOCIPFDELTOK _IOWR('r', 94, int) 83170268Sdarrenr# define SIOCLOOKUPITER _IOWR('r', 95, struct ipfobj) 84170268Sdarrenr# define SIOCGTQTAB _IOWR('r', 96, struct ipfobj) 85255332Scy# define SIOCMATCHFLUSH _IOWR('r', 97, struct ipfobj) 86255332Scy# define SIOCIPFINTERROR _IOR('r', 98, int) 8753642Sguido#else 88145522Sdarrenr# define SIOCADAFR _IOW(r, 60, struct ipfobj) 89145522Sdarrenr# define SIOCRMAFR _IOW(r, 61, struct ipfobj) 9053642Sguido# define SIOCSETFF _IOW(r, 62, u_int) 9153642Sguido# define SIOCGETFF _IOR(r, 63, u_int) 92145522Sdarrenr# define SIOCGETFS _IOWR(r, 64, struct ipfobj) 9353642Sguido# define SIOCIPFFL _IOWR(r, 65, int) 9453642Sguido# define SIOCIPFFB _IOR(r, 66, int) 95145522Sdarrenr# define SIOCADIFR _IOW(r, 67, struct ipfobj) 96145522Sdarrenr# define SIOCRMIFR _IOW(r, 68, struct ipfobj) 9753642Sguido# define SIOCSWAPA _IOR(r, 69, u_int) 98145522Sdarrenr# define SIOCINAFR _IOW(r, 70, struct ipfobj) 99145522Sdarrenr# define SIOCINIFR _IOW(r, 71, struct ipfobj) 10053642Sguido# define SIOCFRENB _IOW(r, 72, u_int) 10153642Sguido# define SIOCFRSYN _IOW(r, 73, u_int) 102145522Sdarrenr# define SIOCFRZST _IOWR(r, 74, struct ipfobj) 103145522Sdarrenr# define SIOCZRLST _IOWR(r, 75, struct ipfobj) 104145522Sdarrenr# define SIOCAUTHW _IOWR(r, 76, struct ipfobj) 105145522Sdarrenr# define SIOCAUTHR _IOWR(r, 77, struct ipfobj) 106170268Sdarrenr# define SIOCSTAT1 _IOWR(r, 78, struct ipfobj) 10760851Sdarrenr# define SIOCSTLCK _IOWR(r, 79, u_int) 108145522Sdarrenr# define SIOCSTPUT _IOWR(r, 80, struct ipfobj) 109145522Sdarrenr# define SIOCSTGET _IOWR(r, 81, struct ipfobj) 110145522Sdarrenr# define SIOCSTGSZ _IOWR(r, 82, struct ipfobj) 111170268Sdarrenr# define SIOCSTAT2 _IOWR(r, 83, struct ipfobj) 112145522Sdarrenr# define SIOCSETLG _IOWR(r, 84, int) 113145522Sdarrenr# define SIOCGETLG _IOWR(r, 85, int) 114145522Sdarrenr# define SIOCFUNCL _IOWR(r, 86, struct ipfunc_resolve) 115145522Sdarrenr# define SIOCIPFGETNEXT _IOWR(r, 87, struct ipfobj) 116145522Sdarrenr# define SIOCIPFGET _IOWR(r, 88, struct ipfobj) 117145522Sdarrenr# define SIOCIPFSET _IOWR(r, 89, struct ipfobj) 118145522Sdarrenr# define SIOCIPFL6 _IOWR(r, 90, int) 119170268Sdarrenr# define SIOCIPFITER _IOWR(r, 91, struct ipfobj) 120170268Sdarrenr# define SIOCGENITER _IOWR(r, 92, struct ipfobj) 121170268Sdarrenr# define SIOCGTABL _IOWR(r, 93, struct ipfobj) 122170268Sdarrenr# define SIOCIPFDELTOK _IOWR(r, 94, int) 123170268Sdarrenr# define SIOCLOOKUPITER _IOWR(r, 95, struct ipfobj) 124170268Sdarrenr# define SIOCGTQTAB _IOWR(r, 96, struct ipfobj) 125255332Scy# define SIOCMATCHFLUSH _IOWR(r, 97, struct ipfobj) 126255332Scy# define SIOCIPFINTERROR _IOR(r, 98, int) 12753642Sguido#endif 12853642Sguido#define SIOCADDFR SIOCADAFR 12953642Sguido#define SIOCDELFR SIOCRMAFR 13053642Sguido#define SIOCINSFR SIOCINAFR 131170268Sdarrenr#define SIOCATHST SIOCSTAT1 132170268Sdarrenr#define SIOCGFRST SIOCSTAT2 13353642Sguido 13460851Sdarrenr 135145522Sdarrenrstruct ipscan; 136145522Sdarrenrstruct ifnet; 137255332Scystruct ipf_main_softc_s; 138145522Sdarrenr 139255332Scytypedef int (* lookupfunc_t) __P((struct ipf_main_softc_s *, void *, 140255332Scy int, void *, u_int)); 141145522Sdarrenr 142145522Sdarrenr/* 143145522Sdarrenr * i6addr is used as a container for both IPv4 and IPv6 addresses, as well 144145522Sdarrenr * as other types of objects, depending on its qualifier. 145145522Sdarrenr */ 146145522Sdarrenrtypedef union i6addr { 147145522Sdarrenr u_32_t i6[4]; 148145522Sdarrenr struct in_addr in4; 149319179Scy#ifdef USE_INET6 150145522Sdarrenr struct in6_addr in6; 151319179Scy#endif 152145522Sdarrenr void *vptr[2]; 153145522Sdarrenr lookupfunc_t lptr[2]; 154170268Sdarrenr struct { 155170268Sdarrenr u_short type; 156170268Sdarrenr u_short subtype; 157255332Scy int name; 158170268Sdarrenr } i6un; 159145522Sdarrenr} i6addr_t; 160145522Sdarrenr 161145522Sdarrenr#define in4_addr in4.s_addr 162170268Sdarrenr#define iplookupnum i6[1] 163255332Scy#define iplookupname i6un.name 164170268Sdarrenr#define iplookuptype i6un.type 165170268Sdarrenr#define iplookupsubtype i6un.subtype 166145522Sdarrenr/* 167145522Sdarrenr * NOTE: These DO overlap the above on 64bit systems and this IS recognised. 168145522Sdarrenr */ 169145522Sdarrenr#define iplookupptr vptr[0] 170145522Sdarrenr#define iplookupfunc lptr[1] 171145522Sdarrenr 172172776Sdarrenr#define I60(x) (((u_32_t *)(x))[0]) 173172776Sdarrenr#define I61(x) (((u_32_t *)(x))[1]) 174172776Sdarrenr#define I62(x) (((u_32_t *)(x))[2]) 175172776Sdarrenr#define I63(x) (((u_32_t *)(x))[3]) 176172776Sdarrenr#define HI60(x) ntohl(((u_32_t *)(x))[0]) 177172776Sdarrenr#define HI61(x) ntohl(((u_32_t *)(x))[1]) 178172776Sdarrenr#define HI62(x) ntohl(((u_32_t *)(x))[2]) 179172776Sdarrenr#define HI63(x) ntohl(((u_32_t *)(x))[3]) 180145522Sdarrenr 181145522Sdarrenr#define IP6_EQ(a,b) ((I63(a) == I63(b)) && (I62(a) == I62(b)) && \ 182145522Sdarrenr (I61(a) == I61(b)) && (I60(a) == I60(b))) 183145522Sdarrenr#define IP6_NEQ(a,b) ((I63(a) != I63(b)) || (I62(a) != I62(b)) || \ 184145522Sdarrenr (I61(a) != I61(b)) || (I60(a) != I60(b))) 185145522Sdarrenr#define IP6_ISZERO(a) ((I60(a) | I61(a) | I62(a) | I63(a)) == 0) 186145522Sdarrenr#define IP6_NOTZERO(a) ((I60(a) | I61(a) | I62(a) | I63(a)) != 0) 187255332Scy#define IP6_ISONES(a) ((I63(a) == 0xffffffff) && (I62(a) == 0xffffffff) && \ 188255332Scy (I61(a) == 0xffffffff) && (I60(a) == 0xffffffff)) 189255332Scy#define IP6_GT(a,b) (ntohl(HI60(a)) > ntohl(HI60(b)) || \ 190255332Scy (HI60(a) == HI60(b) && \ 191255332Scy (ntohl(HI61(a)) > ntohl(HI61(b)) || \ 192255332Scy (HI61(a) == HI61(b) && \ 193255332Scy (ntohl(HI62(a)) > ntohl(HI62(b)) || \ 194255332Scy (HI62(a) == HI62(b) && \ 195255332Scy ntohl(HI63(a)) > ntohl(HI63(b)))))))) 196255332Scy#define IP6_LT(a,b) (ntohl(HI60(a)) < ntohl(HI60(b)) || \ 197255332Scy (HI60(a) == HI60(b) && \ 198255332Scy (ntohl(HI61(a)) < ntohl(HI61(b)) || \ 199255332Scy (HI61(a) == HI61(b) && \ 200255332Scy (ntohl(HI62(a)) < ntohl(HI62(b)) || \ 201255332Scy (HI62(a) == HI62(b) && \ 202255332Scy ntohl(HI63(a)) < ntohl(HI63(b)))))))) 203145522Sdarrenr#define NLADD(n,x) htonl(ntohl(n) + (x)) 204145522Sdarrenr#define IP6_INC(a) \ 205255332Scy do { u_32_t *_i6 = (u_32_t *)(a); \ 206172776Sdarrenr _i6[3] = NLADD(_i6[3], 1); \ 207172776Sdarrenr if (_i6[3] == 0) { \ 208172776Sdarrenr _i6[2] = NLADD(_i6[2], 1); \ 209172776Sdarrenr if (_i6[2] == 0) { \ 210172776Sdarrenr _i6[1] = NLADD(_i6[1], 1); \ 211172776Sdarrenr if (_i6[1] == 0) { \ 212172776Sdarrenr _i6[0] = NLADD(_i6[0], 1); \ 213145522Sdarrenr } \ 214145522Sdarrenr } \ 215145522Sdarrenr } \ 216255332Scy } while (0) 217145522Sdarrenr#define IP6_ADD(a,x,d) \ 218255332Scy do { i6addr_t *_s = (i6addr_t *)(a); \ 219145522Sdarrenr i6addr_t *_d = (i6addr_t *)(d); \ 220145522Sdarrenr _d->i6[0] = NLADD(_s->i6[0], x); \ 221145522Sdarrenr if (ntohl(_d->i6[0]) < ntohl(_s->i6[0])) { \ 222145522Sdarrenr _d->i6[1] = NLADD(_d->i6[1], 1); \ 223145522Sdarrenr if (ntohl(_d->i6[1]) < ntohl(_s->i6[1])) { \ 224145522Sdarrenr _d->i6[2] = NLADD(_d->i6[2], 1); \ 225145522Sdarrenr if (ntohl(_d->i6[2]) < ntohl(_s->i6[2])) { \ 226145522Sdarrenr _d->i6[3] = NLADD(_d->i6[3], 1); \ 227145522Sdarrenr } \ 228145522Sdarrenr } \ 229145522Sdarrenr } \ 230255332Scy } while (0) 231255332Scy#define IP6_AND(a,b,d) do { i6addr_t *_s1 = (i6addr_t *)(a); \ 232255332Scy i6addr_t *_s2 = (i6addr_t *)(b); \ 233145522Sdarrenr i6addr_t *_d = (i6addr_t *)(d); \ 234145522Sdarrenr _d->i6[0] = _s1->i6[0] & _s2->i6[0]; \ 235145522Sdarrenr _d->i6[1] = _s1->i6[1] & _s2->i6[1]; \ 236145522Sdarrenr _d->i6[2] = _s1->i6[2] & _s2->i6[2]; \ 237145522Sdarrenr _d->i6[3] = _s1->i6[3] & _s2->i6[3]; \ 238255332Scy } while (0) 239255332Scy#define IP6_ANDASSIGN(a,m) \ 240255332Scy do { i6addr_t *_d = (i6addr_t *)(a); \ 241255332Scy i6addr_t *_m = (i6addr_t *)(m); \ 242255332Scy _d->i6[0] &= _m->i6[0]; \ 243255332Scy _d->i6[1] &= _m->i6[1]; \ 244255332Scy _d->i6[2] &= _m->i6[2]; \ 245255332Scy _d->i6[3] &= _m->i6[3]; \ 246255332Scy } while (0) 247255332Scy#define IP6_MASKEQ(a,m,b) \ 248255332Scy (((I60(a) & I60(m)) == I60(b)) && \ 249255332Scy ((I61(a) & I61(m)) == I61(b)) && \ 250255332Scy ((I62(a) & I62(m)) == I62(b)) && \ 251255332Scy ((I63(a) & I63(m)) == I63(b))) 252255332Scy#define IP6_MASKNEQ(a,m,b) \ 253255332Scy (((I60(a) & I60(m)) != I60(b)) || \ 254255332Scy ((I61(a) & I61(m)) != I61(b)) || \ 255255332Scy ((I62(a) & I62(m)) != I62(b)) || \ 256255332Scy ((I63(a) & I63(m)) != I63(b))) 257145522Sdarrenr#define IP6_MERGE(a,b,c) \ 258255332Scy do { i6addr_t *_d, *_s1, *_s2; \ 259145522Sdarrenr _d = (i6addr_t *)(a); \ 260145522Sdarrenr _s1 = (i6addr_t *)(b); \ 261145522Sdarrenr _s2 = (i6addr_t *)(c); \ 262145522Sdarrenr _d->i6[0] |= _s1->i6[0] & ~_s2->i6[0]; \ 263145522Sdarrenr _d->i6[1] |= _s1->i6[1] & ~_s2->i6[1]; \ 264145522Sdarrenr _d->i6[2] |= _s1->i6[2] & ~_s2->i6[2]; \ 265255332Scy _d->i6[3] |= _s1->i6[3] & ~_s2->i6[3]; \ 266255332Scy } while (0) 267255332Scy#define IP6_MASK(a,b,c) \ 268255332Scy do { i6addr_t *_d, *_s1, *_s2; \ 269255332Scy _d = (i6addr_t *)(a); \ 270255332Scy _s1 = (i6addr_t *)(b); \ 271255332Scy _s2 = (i6addr_t *)(c); \ 272255332Scy _d->i6[0] = _s1->i6[0] & ~_s2->i6[0]; \ 273255332Scy _d->i6[1] = _s1->i6[1] & ~_s2->i6[1]; \ 274255332Scy _d->i6[2] = _s1->i6[2] & ~_s2->i6[2]; \ 275255332Scy _d->i6[3] = _s1->i6[3] & ~_s2->i6[3]; \ 276255332Scy } while (0) 277255332Scy#define IP6_SETONES(a) \ 278255332Scy do { i6addr_t *_d = (i6addr_t *)(a); \ 279255332Scy _d->i6[0] = 0xffffffff; \ 280255332Scy _d->i6[1] = 0xffffffff; \ 281255332Scy _d->i6[2] = 0xffffffff; \ 282255332Scy _d->i6[3] = 0xffffffff; \ 283255332Scy } while (0) 284145522Sdarrenr 285255332Scytypedef union ipso_u { 286255332Scy u_short ipso_ripso[2]; 287255332Scy u_32_t ipso_doi; 288255332Scy} ipso_t; 289145522Sdarrenr 29053642Sguidotypedef struct fr_ip { 29160851Sdarrenr u_32_t fi_v:4; /* IP version */ 292145522Sdarrenr u_32_t fi_xx:4; /* spare */ 29360851Sdarrenr u_32_t fi_tos:8; /* IP packet TOS */ 29460851Sdarrenr u_32_t fi_ttl:8; /* IP packet TTL */ 29560851Sdarrenr u_32_t fi_p:8; /* IP packet protocol */ 29653642Sguido u_32_t fi_optmsk; /* bitmask composed from IP options */ 297145522Sdarrenr i6addr_t fi_src; /* source address from packet */ 298145522Sdarrenr i6addr_t fi_dst; /* destination address from packet */ 299255332Scy ipso_t fi_ipso; /* IP security options */ 300145522Sdarrenr u_32_t fi_flx; /* packet flags */ 301145522Sdarrenr u_32_t fi_tcpmsk; /* TCP options set/reset */ 302255332Scy u_32_t fi_ports[2]; /* TCP ports */ 303255332Scy u_char fi_tcpf; /* TCP flags */ 304255332Scy u_char fi_sensitivity; 305255332Scy u_char fi_xxx[2]; /* pad */ 30653642Sguido} fr_ip_t; 30753642Sguido 308145522Sdarrenr/* 309145522Sdarrenr * For use in fi_flx 310145522Sdarrenr */ 311145522Sdarrenr#define FI_TCPUDP 0x0001 /* TCP/UCP implied comparison*/ 312145522Sdarrenr#define FI_OPTIONS 0x0002 313145522Sdarrenr#define FI_FRAG 0x0004 314145522Sdarrenr#define FI_SHORT 0x0008 315145522Sdarrenr#define FI_NATED 0x0010 316145522Sdarrenr#define FI_MULTICAST 0x0020 317145522Sdarrenr#define FI_BROADCAST 0x0040 318145522Sdarrenr#define FI_MBCAST 0x0080 319145522Sdarrenr#define FI_STATE 0x0100 320145522Sdarrenr#define FI_BADNAT 0x0200 321145522Sdarrenr#define FI_BAD 0x0400 322145522Sdarrenr#define FI_OOW 0x0800 /* Out of state window, else match */ 323145522Sdarrenr#define FI_ICMPERR 0x1000 324145522Sdarrenr#define FI_FRAGBODY 0x2000 325145522Sdarrenr#define FI_BADSRC 0x4000 326145522Sdarrenr#define FI_LOWTTL 0x8000 327255332Scy#define FI_CMP 0x5cfe3 /* Not FI_FRAG,FI_NATED,FI_FRAGTAIL */ 328145522Sdarrenr#define FI_ICMPCMP 0x0003 /* Flags we can check for ICMP error packets */ 329255332Scy#define FI_WITH 0x5effe /* Not FI_TCPUDP */ 330145522Sdarrenr#define FI_V6EXTHDR 0x10000 331145522Sdarrenr#define FI_COALESCE 0x20000 332172776Sdarrenr#define FI_NEWNAT 0x40000 333255332Scy#define FI_ICMPQUERY 0x80000 334255332Scy#define FI_ENCAP 0x100000 /* encap/decap with NAT */ 335255332Scy#define FI_AH 0x200000 /* AH header present */ 336255332Scy#define FI_DOCKSUM 0x10000000 /* Proxy wants L4 recalculation */ 337145522Sdarrenr#define FI_NOCKSUM 0x20000000 /* don't do a L4 checksum validation */ 338255332Scy#define FI_NOWILD 0x40000000 /* Do not do wildcard searches */ 339145522Sdarrenr#define FI_IGNORE 0x80000000 34053642Sguido 341255332Scy#define fi_secmsk fi_ipso.ipso_ripso[0] 342255332Scy#define fi_auth fi_ipso.ipso_ripso[1] 343255332Scy#define fi_doi fi_ipso.ipso_doi 34460851Sdarrenr#define fi_saddr fi_src.in4.s_addr 34560851Sdarrenr#define fi_daddr fi_dst.in4.s_addr 346145522Sdarrenr#define fi_srcnum fi_src.iplookupnum 347145522Sdarrenr#define fi_dstnum fi_dst.iplookupnum 348170268Sdarrenr#define fi_srcname fi_src.iplookupname 349170268Sdarrenr#define fi_dstname fi_dst.iplookupname 350145522Sdarrenr#define fi_srctype fi_src.iplookuptype 351145522Sdarrenr#define fi_dsttype fi_dst.iplookuptype 352170268Sdarrenr#define fi_srcsubtype fi_src.iplookupsubtype 353170268Sdarrenr#define fi_dstsubtype fi_dst.iplookupsubtype 354145522Sdarrenr#define fi_srcptr fi_src.iplookupptr 355145522Sdarrenr#define fi_dstptr fi_dst.iplookupptr 356145522Sdarrenr#define fi_srcfunc fi_src.iplookupfunc 357145522Sdarrenr#define fi_dstfunc fi_dst.iplookupfunc 35860851Sdarrenr 35960851Sdarrenr 36053642Sguido/* 36153642Sguido * These are both used by the state and NAT code to indicate that one port or 36253642Sguido * the other should be treated as a wildcard. 363145522Sdarrenr * NOTE: When updating, check bit masks in ip_state.h and update there too. 36453642Sguido */ 365145522Sdarrenr#define SI_W_SPORT 0x00000100 366145522Sdarrenr#define SI_W_DPORT 0x00000200 367145522Sdarrenr#define SI_WILDP (SI_W_SPORT|SI_W_DPORT) 368145522Sdarrenr#define SI_W_SADDR 0x00000400 369145522Sdarrenr#define SI_W_DADDR 0x00000800 370145522Sdarrenr#define SI_WILDA (SI_W_SADDR|SI_W_DADDR) 371145522Sdarrenr#define SI_NEWFR 0x00001000 372145522Sdarrenr#define SI_CLONE 0x00002000 373145522Sdarrenr#define SI_CLONED 0x00004000 374255332Scy#define SI_NEWCLONE 0x00008000 37553642Sguido 376255332Scytypedef struct { 377255332Scy u_short fda_ports[2]; 378255332Scy u_char fda_tcpf; /* TCP header flags (SYN, ACK, etc) */ 379255332Scy} frdat_t; 380145522Sdarrenr 381255332Scytypedef enum fr_breasons_e { 382255332Scy FRB_BLOCKED = 0, 383255332Scy FRB_LOGFAIL = 1, 384255332Scy FRB_PPSRATE = 2, 385255332Scy FRB_JUMBO = 3, 386255332Scy FRB_MAKEFRIP = 4, 387255332Scy FRB_STATEADD = 5, 388255332Scy FRB_UPDATEIPID = 6, 389255332Scy FRB_LOGFAIL2 = 7, 390255332Scy FRB_DECAPFRIP = 8, 391255332Scy FRB_AUTHNEW = 9, 392255332Scy FRB_AUTHCAPTURE = 10, 393255332Scy FRB_COALESCE = 11, 394255332Scy FRB_PULLUP = 12, 395255332Scy FRB_AUTHFEEDBACK = 13, 396255332Scy FRB_BADFRAG = 14, 397255332Scy FRB_NATV4 = 15, 398255332Scy FRB_NATV6 = 16, 399255332Scy} fr_breason_t; 400255332Scy 401255332Scy#define FRB_MAX_VALUE 16 402255332Scy 403255332Scytypedef enum ipf_cksum_e { 404255332Scy FI_CK_BAD = -1, 405255332Scy FI_CK_NEEDED = 0, 406255332Scy FI_CK_SUMOK = 1, 407255332Scy FI_CK_L4PART = 2, 408255332Scy FI_CK_L4FULL = 4 409255332Scy} ipf_cksum_t; 410255332Scy 41153642Sguidotypedef struct fr_info { 412255332Scy void *fin_main_soft; 41353642Sguido void *fin_ifp; /* interface packet is `on' */ 414255332Scy struct frentry *fin_fr; /* last matching rule */ 415145522Sdarrenr int fin_out; /* in or out ? 1 == out, 0 == in */ 416255332Scy fr_ip_t fin_fi; /* IP Packet summary */ 417255332Scy frdat_t fin_dat; /* TCP/UDP ports, ICMP code/type */ 418255332Scy int fin_dlen; /* length of data portion of packet */ 419255332Scy int fin_plen; 420255332Scy u_32_t fin_rule; /* rule # last matched */ 42195418Sdarrenr u_short fin_hlen; /* length of IP header in bytes */ 422145522Sdarrenr char fin_group[FR_GROUPLEN]; /* group number, -1 for none */ 423145522Sdarrenr void *fin_dp; /* start of data past IP header */ 424255332Scy /* 425255332Scy * Fields after fin_dp aren't used for compression of log records. 426255332Scy * fin_fi contains the IP version (fin_family) 427255332Scy * fin_rule isn't included because adding a new rule can change it but 428255332Scy * not change fin_fr. fin_rule is the rule number reported. 429255332Scy * It isn't necessary to include fin_crc because that is checked 430255332Scy * for explicitly, before calling bcmp. 431255332Scy */ 432255332Scy u_32_t fin_crc; /* Simple calculation for logging */ 433255332Scy int fin_family; /* AF_INET, etc. */ 434255332Scy int fin_icode; /* ICMP error to return */ 435255332Scy int fin_mtu; /* MTU input for ICMP need-frag */ 436255332Scy int fin_rev; /* state only: 1 = reverse */ 437145522Sdarrenr int fin_ipoff; /* # bytes from buffer start to hdr */ 438255332Scy u_32_t fin_id; /* IP packet id field */ 439255332Scy u_short fin_l4hlen; /* length of L4 header, if known */ 44092685Sdarrenr u_short fin_off; 441145522Sdarrenr int fin_depth; /* Group nesting depth */ 442145522Sdarrenr int fin_error; /* Error code to return */ 443255332Scy ipf_cksum_t fin_cksum; /* -1 = bad, 1 = good, 0 = not done */ 444255332Scy fr_breason_t fin_reason; /* why auto blocked */ 445255332Scy u_int fin_pktnum; 446145522Sdarrenr void *fin_nattag; 447255332Scy struct frdest *fin_dif; 448255332Scy struct frdest *fin_tif; 449255332Scy union { 450255332Scy ip_t *fip_ip; 451255332Scy#ifdef USE_INET6 452255332Scy ip6_t *fip_ip6; 453255332Scy#endif 454255332Scy } fin_ipu; 455130886Sdarrenr mb_t **fin_mp; /* pointer to pointer to mbuf */ 456145522Sdarrenr mb_t *fin_m; /* pointer to mbuf */ 457145522Sdarrenr#ifdef MENTAT 458145522Sdarrenr mb_t *fin_qfm; /* pointer to mblk where pkt starts */ 459145522Sdarrenr void *fin_qpi; 460161356Sguido char fin_ifname[LIFNAMSIZ]; 46153642Sguido#endif 462145522Sdarrenr#ifdef __sgi 463145522Sdarrenr void *fin_hbuf; 464145522Sdarrenr#endif 465255332Scy void *fin_fraghdr; /* pointer to start of ipv6 frag hdr */ 46653642Sguido} fr_info_t; 46753642Sguido 468255332Scy#define fin_ip fin_ipu.fip_ip 469255332Scy#define fin_ip6 fin_ipu.fip_ip6 47080482Sdarrenr#define fin_v fin_fi.fi_v 47192685Sdarrenr#define fin_p fin_fi.fi_p 472145522Sdarrenr#define fin_flx fin_fi.fi_flx 473145522Sdarrenr#define fin_optmsk fin_fi.fi_optmsk 474145522Sdarrenr#define fin_secmsk fin_fi.fi_secmsk 475255332Scy#define fin_doi fin_fi.fi_doi 476145522Sdarrenr#define fin_auth fin_fi.fi_auth 477145522Sdarrenr#define fin_src fin_fi.fi_src.in4 47880482Sdarrenr#define fin_saddr fin_fi.fi_saddr 479145522Sdarrenr#define fin_dst fin_fi.fi_dst.in4 48080482Sdarrenr#define fin_daddr fin_fi.fi_daddr 481255332Scy#define fin_data fin_fi.fi_ports 482255332Scy#define fin_sport fin_fi.fi_ports[0] 483255332Scy#define fin_dport fin_fi.fi_ports[1] 484255332Scy#define fin_tcpf fin_fi.fi_tcpf 485255332Scy#define fin_src6 fin_fi.fi_src 486255332Scy#define fin_dst6 fin_fi.fi_dst 487255332Scy#define fin_srcip6 fin_fi.fi_src.in6 488255332Scy#define fin_dstip6 fin_fi.fi_dst.in6 48960851Sdarrenr 490170268Sdarrenr#define IPF_IN 0 491170268Sdarrenr#define IPF_OUT 1 492145522Sdarrenr 493145522Sdarrenrtypedef struct frentry *(*ipfunc_t) __P((fr_info_t *, u_32_t *)); 494255332Scytypedef int (*ipfuncinit_t) __P((struct ipf_main_softc_s *, struct frentry *)); 495145522Sdarrenr 496145522Sdarrenrtypedef struct ipfunc_resolve { 497145522Sdarrenr char ipfu_name[32]; 498145522Sdarrenr ipfunc_t ipfu_addr; 499145522Sdarrenr ipfuncinit_t ipfu_init; 500255332Scy ipfuncinit_t ipfu_fini; 501145522Sdarrenr} ipfunc_resolve_t; 502145522Sdarrenr 50353642Sguido/* 50453642Sguido * Size for compares on fr_info structures 50553642Sguido */ 50653642Sguido#define FI_CSIZE offsetof(fr_info_t, fin_icode) 50792685Sdarrenr#define FI_LCSIZE offsetof(fr_info_t, fin_dp) 50853642Sguido 50953642Sguido/* 510145522Sdarrenr * Size for copying cache fr_info structure 51195418Sdarrenr */ 512145522Sdarrenr#define FI_COPYSIZE offsetof(fr_info_t, fin_dp) 51395418Sdarrenr 51495418Sdarrenr/* 515145522Sdarrenr * Structure for holding IPFilter's tag information 51653642Sguido */ 517145522Sdarrenr#define IPFTAG_LEN 16 518145522Sdarrenrtypedef struct { 519145522Sdarrenr union { 520145522Sdarrenr u_32_t iptu_num[4]; 521145522Sdarrenr char iptu_tag[IPFTAG_LEN]; 522145522Sdarrenr } ipt_un; 523145522Sdarrenr int ipt_not; 524145522Sdarrenr} ipftag_t; 52553642Sguido 526145522Sdarrenr#define ipt_tag ipt_un.iptu_tag 527145522Sdarrenr#define ipt_num ipt_un.iptu_num 528145522Sdarrenr 529255332Scy/* 530255332Scy * Structure to define address for pool lookups. 531255332Scy */ 532255332Scytypedef struct { 533255332Scy u_char adf_len; 534255332Scy sa_family_t adf_family; 535255332Scy u_char adf_xxx[2]; 536255332Scy i6addr_t adf_addr; 537255332Scy} addrfamily_t; 538145522Sdarrenr 539255332Scy 540255332ScyRBI_LINK(ipf_rb, host_node_s); 541255332Scy 542255332Scytypedef struct host_node_s { 543255332Scy RBI_FIELD(ipf_rb) hn_entry; 544255332Scy addrfamily_t hn_addr; 545255332Scy int hn_active; 546255332Scy} host_node_t; 547255332Scy 548255332Scytypedef RBI_HEAD(ipf_rb, host_node_s) ipf_rb_head_t; 549255332Scy 550255332Scytypedef struct host_track_s { 551255332Scy ipf_rb_head_t ht_root; 552255332Scy int ht_max_nodes; 553255332Scy int ht_max_per_node; 554255332Scy int ht_netmask; 555255332Scy int ht_cur_nodes; 556255332Scy} host_track_t; 557255332Scy 558255332Scy 559255332Scytypedef enum fr_dtypes_e { 560255332Scy FRD_NORMAL = 0, 561255332Scy FRD_DSTLIST 562255332Scy} fr_dtypes_t; 563145522Sdarrenr/* 564145522Sdarrenr * This structure is used to hold information about the next hop for where 565145522Sdarrenr * to forward a packet. 566145522Sdarrenr */ 56753642Sguidotypedef struct frdest { 568255332Scy void *fd_ptr; 569255332Scy addrfamily_t fd_addr; 570255332Scy fr_dtypes_t fd_type; 571255332Scy int fd_name; 572255332Scy int fd_local; 57353642Sguido} frdest_t; 57453642Sguido 575255332Scy#define fd_ip6 fd_addr.adf_addr 57692685Sdarrenr#define fd_ip fd_ip6.in4 57792685Sdarrenr 57892685Sdarrenr 579255332Scytypedef enum fr_ctypes_e { 580255332Scy FR_NONE = 0, 581255332Scy FR_EQUAL, 582255332Scy FR_NEQUAL, 583255332Scy FR_LESST, 584255332Scy FR_GREATERT, 585255332Scy FR_LESSTE, 586255332Scy FR_GREATERTE, 587255332Scy FR_OUTRANGE, 588255332Scy FR_INRANGE, 589255332Scy FR_INCRANGE 590255332Scy} fr_ctypes_t; 591255332Scy 592145522Sdarrenr/* 593145522Sdarrenr * This structure holds information about a port comparison. 594145522Sdarrenr */ 59560851Sdarrenrtypedef struct frpcmp { 596255332Scy fr_ctypes_t frp_cmp; /* data for port comparisons */ 597349902Scy u_32_t frp_port; /* low port for <> and >< */ 598349902Scy u_32_t frp_top; /* high port for <> and >< */ 59960851Sdarrenr} frpcmp_t; 60060851Sdarrenr 601145522Sdarrenr 602145522Sdarrenr/* 603349903Scy * Structure containing all the relevant TCP/UDP things that can be checked in 604145522Sdarrenr * a filter rule. 605145522Sdarrenr */ 60660851Sdarrenrtypedef struct frtuc { 607145522Sdarrenr u_char ftu_tcpfm; /* tcp flags mask */ 608145522Sdarrenr u_char ftu_tcpf; /* tcp flags */ 609349903Scy frpcmp_t ftu_src; /* source port */ 610349903Scy frpcmp_t ftu_dst; /* destination port */ 61160851Sdarrenr} frtuc_t; 61260851Sdarrenr 61360851Sdarrenr#define ftu_scmp ftu_src.frp_cmp 61460851Sdarrenr#define ftu_dcmp ftu_dst.frp_cmp 61560851Sdarrenr#define ftu_sport ftu_src.frp_port 61660851Sdarrenr#define ftu_dport ftu_dst.frp_port 61760851Sdarrenr#define ftu_stop ftu_src.frp_top 61860851Sdarrenr#define ftu_dtop ftu_dst.frp_top 61960851Sdarrenr 620145522Sdarrenr#define FR_TCPFMAX 0x3f 621145522Sdarrenr 622255332Scytypedef enum fr_atypes_e { 623255332Scy FRI_NONE = -1, /* For LHS of NAT */ 624255332Scy FRI_NORMAL = 0, /* Normal address */ 625255332Scy FRI_DYNAMIC, /* dynamic address */ 626255332Scy FRI_LOOKUP, /* address is a pool # */ 627255332Scy FRI_RANGE, /* address/mask is a range */ 628255332Scy FRI_NETWORK, /* network address from if */ 629255332Scy FRI_BROADCAST, /* broadcast address from if */ 630255332Scy FRI_PEERADDR, /* Peer address for P-to-P */ 631255332Scy FRI_NETMASKED, /* network address with netmask from if */ 632255332Scy FRI_SPLIT, /* For NAT compatibility */ 633255332Scy FRI_INTERFACE /* address is based on interface name */ 634255332Scy} fr_atypes_t; 635255332Scy 636145522Sdarrenr/* 637145522Sdarrenr * This structure makes up what is considered to be the IPFilter specific 638145522Sdarrenr * matching components of a filter rule, as opposed to the data structures 639145522Sdarrenr * used to define the result which are in frentry_t and not here. 640145522Sdarrenr */ 641145522Sdarrenrtypedef struct fripf { 642255332Scy fr_ip_t fri_ip; 643255332Scy fr_ip_t fri_mip; /* mask structure */ 644145522Sdarrenr 645255332Scy u_short fri_icmpm; /* data for ICMP packets (mask) */ 646255332Scy u_short fri_icmp; 647145522Sdarrenr 648255332Scy frtuc_t fri_tuc; 649255332Scy fr_atypes_t fri_satype; /* addres type */ 650255332Scy fr_atypes_t fri_datype; /* addres type */ 651255332Scy int fri_sifpidx; /* doing dynamic addressing */ 652255332Scy int fri_difpidx; /* index into fr_ifps[] to use when */ 653145522Sdarrenr} fripf_t; 654145522Sdarrenr 655170268Sdarrenr#define fri_dlookup fri_mip.fi_dst 656170268Sdarrenr#define fri_slookup fri_mip.fi_src 657170268Sdarrenr#define fri_dstnum fri_mip.fi_dstnum 658145522Sdarrenr#define fri_srcnum fri_mip.fi_srcnum 659170268Sdarrenr#define fri_dstname fri_mip.fi_dstname 660170268Sdarrenr#define fri_srcname fri_mip.fi_srcname 661170268Sdarrenr#define fri_dstptr fri_mip.fi_dstptr 662145522Sdarrenr#define fri_srcptr fri_mip.fi_srcptr 663145522Sdarrenr 664145522Sdarrenr 665255332Scytypedef enum fr_rtypes_e { 666255332Scy FR_T_NONE = 0, 667255332Scy FR_T_IPF, /* IPF structures */ 668255332Scy FR_T_BPFOPC, /* BPF opcode */ 669255332Scy FR_T_CALLFUNC, /* callout to function in fr_func only */ 670255332Scy FR_T_COMPIPF, /* compiled C code */ 671255332Scy FR_T_IPFEXPR, /* IPF expression */ 672255332Scy FR_T_BUILTIN = 0x40000000, /* rule is in kernel space */ 673255332Scy FR_T_IPF_BUILTIN, 674255332Scy FR_T_BPFOPC_BUILTIN, 675255332Scy FR_T_CALLFUNC_BUILTIN, 676255332Scy FR_T_COMPIPF_BUILTIN, 677255332Scy FR_T_IPFEXPR_BUILTIN 678255332Scy} fr_rtypes_t; 679145522Sdarrenr 680145522Sdarrenrtypedef struct frentry * (* frentfunc_t) __P((fr_info_t *)); 681145522Sdarrenr 68253642Sguidotypedef struct frentry { 683145522Sdarrenr ipfmutex_t fr_lock; 68453642Sguido struct frentry *fr_next; 685255332Scy struct frentry **fr_pnext; 686255332Scy struct frgroup *fr_grp; 687255332Scy struct frgroup *fr_grphead; 688255332Scy struct frgroup *fr_icmpgrp; 689145522Sdarrenr struct ipscan *fr_isc; 690255332Scy struct frentry *fr_dnext; /* 2 fr_die linked list pointers */ 691255332Scy struct frentry **fr_pdnext; 692145522Sdarrenr void *fr_ifas[4]; 693145522Sdarrenr void *fr_ptr; /* for use with fr_arg */ 694255332Scy int fr_comment; /* text comment for rule */ 695255332Scy int fr_size; /* size of this structure */ 696255332Scy int fr_ref; /* reference count */ 697145522Sdarrenr int fr_statecnt; /* state count - for limit rules */ 698255332Scy u_32_t fr_die; /* only used on loading the rule */ 699255332Scy u_int fr_cksum; /* checksum on filter rules for performance */ 70053642Sguido /* 701170268Sdarrenr * The line number from a file is here because we need to be able to 702170268Sdarrenr * match the rule generated with ``grep rule ipf.conf | ipf -rf -'' 703170268Sdarrenr * with the rule loaded using ``ipf -f ipf.conf'' - thus it can't be 704170268Sdarrenr * on the other side of fr_func. 705170268Sdarrenr */ 706170268Sdarrenr int fr_flineno; /* line number from conf file */ 707170268Sdarrenr /* 70853642Sguido * These are only incremented when a packet matches this rule and 70953642Sguido * it is the last match 71053642Sguido */ 71153642Sguido U_QUAD_T fr_hits; 71253642Sguido U_QUAD_T fr_bytes; 713145522Sdarrenr 71453642Sguido /* 715145522Sdarrenr * For PPS rate limiting 716255332Scy * fr_lpu is used to always have the same size for this field, 717255332Scy * allocating 64bits for seconds and 32bits for milliseconds. 71853642Sguido */ 719255332Scy union { 720255332Scy struct timeval frp_lastpkt; 721255332Scy char frp_bytes[12]; 722255332Scy } fr_lpu; 723145522Sdarrenr int fr_curpps; 72453642Sguido 725145522Sdarrenr union { 726145522Sdarrenr void *fru_data; 727255332Scy char *fru_caddr; 728145522Sdarrenr fripf_t *fru_ipf; 729145522Sdarrenr frentfunc_t fru_func; 730145522Sdarrenr } fr_dun; 73153642Sguido 732145522Sdarrenr /* 733145522Sdarrenr * Fields after this may not change whilst in the kernel. 734145522Sdarrenr */ 735145522Sdarrenr ipfunc_t fr_func; /* call this function */ 736145522Sdarrenr int fr_dsize; 737145522Sdarrenr int fr_pps; 738255332Scy fr_rtypes_t fr_type; 73953642Sguido u_32_t fr_flags; /* per-rule flags && options (see below) */ 740145522Sdarrenr u_32_t fr_logtag; /* user defined log tag # */ 741145522Sdarrenr u_32_t fr_collect; /* collection number */ 742255332Scy u_int fr_arg; /* misc. numeric arg for rule */ 74360851Sdarrenr u_int fr_loglevel; /* syslog log facility + priority */ 744255332Scy u_char fr_family; 74560851Sdarrenr u_char fr_icode; /* return ICMP code */ 746255332Scy int fr_group; /* group to which this rule belongs */ 747255332Scy int fr_grhead; /* group # which this rule starts */ 748255332Scy int fr_ifnames[4]; 749255332Scy int fr_isctag; 750255332Scy int fr_rpc; /* XID Filtering */ 751145522Sdarrenr ipftag_t fr_nattag; 752145522Sdarrenr frdest_t fr_tifs[2]; /* "to"/"reply-to" interface */ 753145522Sdarrenr frdest_t fr_dif; /* duplicate packet interface */ 754145522Sdarrenr /* 755255332Scy * These are all options related to stateful filtering 756145522Sdarrenr */ 757255332Scy host_track_t fr_srctrack; 758255332Scy int fr_nostatelog; 759255332Scy int fr_statemax; /* max reference count */ 760255332Scy int fr_icmphead; /* ICMP group for state options */ 761255332Scy u_int fr_age[2]; /* non-TCP state timeouts */ 762255332Scy /* 763255332Scy * How big is the name buffer at the end? 764255332Scy */ 765255332Scy int fr_namelen; 766255332Scy char fr_names[1]; 76753642Sguido} frentry_t; 76853642Sguido 769255332Scy#define fr_lastpkt fr_lpu.frp_lastpkt 770145522Sdarrenr#define fr_caddr fr_dun.fru_caddr 771145522Sdarrenr#define fr_data fr_dun.fru_data 772145522Sdarrenr#define fr_dfunc fr_dun.fru_func 773145522Sdarrenr#define fr_ipf fr_dun.fru_ipf 774145522Sdarrenr#define fr_ip fr_ipf->fri_ip 775145522Sdarrenr#define fr_mip fr_ipf->fri_mip 776145522Sdarrenr#define fr_icmpm fr_ipf->fri_icmpm 777145522Sdarrenr#define fr_icmp fr_ipf->fri_icmp 778145522Sdarrenr#define fr_tuc fr_ipf->fri_tuc 779145522Sdarrenr#define fr_satype fr_ipf->fri_satype 780145522Sdarrenr#define fr_datype fr_ipf->fri_datype 781145522Sdarrenr#define fr_sifpidx fr_ipf->fri_sifpidx 782145522Sdarrenr#define fr_difpidx fr_ipf->fri_difpidx 78353642Sguido#define fr_proto fr_ip.fi_p 784145522Sdarrenr#define fr_mproto fr_mip.fi_p 78553642Sguido#define fr_ttl fr_ip.fi_ttl 786145522Sdarrenr#define fr_mttl fr_mip.fi_ttl 78753642Sguido#define fr_tos fr_ip.fi_tos 788145522Sdarrenr#define fr_mtos fr_mip.fi_tos 78960851Sdarrenr#define fr_tcpfm fr_tuc.ftu_tcpfm 79060851Sdarrenr#define fr_tcpf fr_tuc.ftu_tcpf 79160851Sdarrenr#define fr_scmp fr_tuc.ftu_scmp 79260851Sdarrenr#define fr_dcmp fr_tuc.ftu_dcmp 79360851Sdarrenr#define fr_dport fr_tuc.ftu_dport 79460851Sdarrenr#define fr_sport fr_tuc.ftu_sport 79560851Sdarrenr#define fr_stop fr_tuc.ftu_stop 79660851Sdarrenr#define fr_dtop fr_tuc.ftu_dtop 79760851Sdarrenr#define fr_dst fr_ip.fi_dst.in4 798255332Scy#define fr_dst6 fr_ip.fi_dst 799145522Sdarrenr#define fr_daddr fr_ip.fi_dst.in4.s_addr 80060851Sdarrenr#define fr_src fr_ip.fi_src.in4 801255332Scy#define fr_src6 fr_ip.fi_src 802145522Sdarrenr#define fr_saddr fr_ip.fi_src.in4.s_addr 80360851Sdarrenr#define fr_dmsk fr_mip.fi_dst.in4 804255332Scy#define fr_dmsk6 fr_mip.fi_dst 805145522Sdarrenr#define fr_dmask fr_mip.fi_dst.in4.s_addr 80660851Sdarrenr#define fr_smsk fr_mip.fi_src.in4 807255332Scy#define fr_smsk6 fr_mip.fi_src 808145522Sdarrenr#define fr_smask fr_mip.fi_src.in4.s_addr 809145522Sdarrenr#define fr_dstnum fr_ip.fi_dstnum 810145522Sdarrenr#define fr_srcnum fr_ip.fi_srcnum 811170268Sdarrenr#define fr_dlookup fr_ip.fi_dst 812170268Sdarrenr#define fr_slookup fr_ip.fi_src 813170268Sdarrenr#define fr_dstname fr_ip.fi_dstname 814170268Sdarrenr#define fr_srcname fr_ip.fi_srcname 815145522Sdarrenr#define fr_dsttype fr_ip.fi_dsttype 816145522Sdarrenr#define fr_srctype fr_ip.fi_srctype 817170268Sdarrenr#define fr_dstsubtype fr_ip.fi_dstsubtype 818170268Sdarrenr#define fr_srcsubtype fr_ip.fi_srcsubtype 819145522Sdarrenr#define fr_dstptr fr_mip.fi_dstptr 820145522Sdarrenr#define fr_srcptr fr_mip.fi_srcptr 821145522Sdarrenr#define fr_dstfunc fr_mip.fi_dstfunc 822145522Sdarrenr#define fr_srcfunc fr_mip.fi_srcfunc 823145522Sdarrenr#define fr_optbits fr_ip.fi_optmsk 824145522Sdarrenr#define fr_optmask fr_mip.fi_optmsk 825145522Sdarrenr#define fr_secbits fr_ip.fi_secmsk 826145522Sdarrenr#define fr_secmask fr_mip.fi_secmsk 827145522Sdarrenr#define fr_authbits fr_ip.fi_auth 828145522Sdarrenr#define fr_authmask fr_mip.fi_auth 829255332Scy#define fr_doi fr_ip.fi_doi 830255332Scy#define fr_doimask fr_mip.fi_doi 831145522Sdarrenr#define fr_flx fr_ip.fi_flx 832145522Sdarrenr#define fr_mflx fr_mip.fi_flx 83392685Sdarrenr#define fr_ifa fr_ifas[0] 83492685Sdarrenr#define fr_oifa fr_ifas[2] 835145522Sdarrenr#define fr_tif fr_tifs[0] 836145522Sdarrenr#define fr_rif fr_tifs[1] 83753642Sguido 838145522Sdarrenr#define FR_NOLOGTAG 0 83953642Sguido 840145522Sdarrenr#define FR_CMPSIZ (sizeof(struct frentry) - \ 841145522Sdarrenr offsetof(struct frentry, fr_func)) 842255332Scy#define FR_NAME(_f, _n) (_f)->fr_names + (_f)->_n 843145522Sdarrenr 844145522Sdarrenr 845145522Sdarrenr/* 84653642Sguido * fr_flags 84753642Sguido */ 84853642Sguido#define FR_BLOCK 0x00001 /* do not allow packet to pass */ 84953642Sguido#define FR_PASS 0x00002 /* allow packet to pass */ 850145522Sdarrenr#define FR_AUTH 0x00003 /* use authentication */ 851145522Sdarrenr#define FR_PREAUTH 0x00004 /* require preauthentication */ 852145522Sdarrenr#define FR_ACCOUNT 0x00005 /* Accounting rule */ 853145522Sdarrenr#define FR_SKIP 0x00006 /* skip rule */ 854255332Scy#define FR_DECAPSULATE 0x00008 /* decapsulate rule */ 855255332Scy#define FR_CALL 0x00009 /* call rule */ 856145522Sdarrenr#define FR_CMDMASK 0x0000f 85753642Sguido#define FR_LOG 0x00010 /* Log */ 85853642Sguido#define FR_LOGB 0x00011 /* Log-fail */ 85953642Sguido#define FR_LOGP 0x00012 /* Log-pass */ 860145522Sdarrenr#define FR_LOGMASK (FR_LOG|FR_CMDMASK) 861145522Sdarrenr#define FR_CALLNOW 0x00020 /* call another function (fr_func) if matches */ 862145522Sdarrenr#define FR_NOTSRCIP 0x00040 863145522Sdarrenr#define FR_NOTDSTIP 0x00080 864145522Sdarrenr#define FR_QUICK 0x00100 /* match & stop processing list */ 865145522Sdarrenr#define FR_KEEPFRAG 0x00200 /* keep fragment information */ 866145522Sdarrenr#define FR_KEEPSTATE 0x00400 /* keep `connection' state information */ 867145522Sdarrenr#define FR_FASTROUTE 0x00800 /* bypass normal routing */ 868145522Sdarrenr#define FR_RETRST 0x01000 /* Return TCP RST packet - reset connection */ 869145522Sdarrenr#define FR_RETICMP 0x02000 /* Return ICMP unreachable packet */ 870145522Sdarrenr#define FR_FAKEICMP 0x03000 /* Return ICMP unreachable with fake source */ 871145522Sdarrenr#define FR_OUTQUE 0x04000 /* outgoing packets */ 872145522Sdarrenr#define FR_INQUE 0x08000 /* ingoing packets */ 873145522Sdarrenr#define FR_LOGBODY 0x10000 /* Log the body */ 874145522Sdarrenr#define FR_LOGFIRST 0x20000 /* Log the first byte if state held */ 87553642Sguido#define FR_LOGORBLOCK 0x40000 /* block the packet if it can't be logged */ 876255332Scy#define FR_STLOOSE 0x80000 /* loose state checking */ 877145522Sdarrenr#define FR_FRSTRICT 0x100000 /* strict frag. cache */ 878145522Sdarrenr#define FR_STSTRICT 0x200000 /* strict keep state */ 879145522Sdarrenr#define FR_NEWISN 0x400000 /* new ISN for outgoing TCP */ 880145522Sdarrenr#define FR_NOICMPERR 0x800000 /* do not match ICMP errors in state */ 881145522Sdarrenr#define FR_STATESYNC 0x1000000 /* synchronize state to slave */ 882255332Scy#define FR_COPIED 0x2000000 /* copied from user space */ 883255332Scy#define FR_INACTIVE 0x4000000 /* only used when flush'ing rules */ 884145522Sdarrenr#define FR_NOMATCH 0x8000000 /* no match occured */ 885145522Sdarrenr /* 0x10000000 FF_LOGPASS */ 886145522Sdarrenr /* 0x20000000 FF_LOGBLOCK */ 887145522Sdarrenr /* 0x40000000 FF_LOGNOMATCH */ 888145522Sdarrenr /* 0x80000000 FF_BLOCKNONIP */ 88953642Sguido 89053642Sguido#define FR_RETMASK (FR_RETICMP|FR_RETRST|FR_FAKEICMP) 891145522Sdarrenr#define FR_ISBLOCK(x) (((x) & FR_CMDMASK) == FR_BLOCK) 892145522Sdarrenr#define FR_ISPASS(x) (((x) & FR_CMDMASK) == FR_PASS) 893145522Sdarrenr#define FR_ISAUTH(x) (((x) & FR_CMDMASK) == FR_AUTH) 894145522Sdarrenr#define FR_ISPREAUTH(x) (((x) & FR_CMDMASK) == FR_PREAUTH) 895145522Sdarrenr#define FR_ISACCOUNT(x) (((x) & FR_CMDMASK) == FR_ACCOUNT) 896145522Sdarrenr#define FR_ISSKIP(x) (((x) & FR_CMDMASK) == FR_SKIP) 897255332Scy#define FR_ISDECAPS(x) (((x) & FR_CMDMASK) == FR_DECAPSULATE) 898145522Sdarrenr#define FR_ISNOMATCH(x) ((x) & FR_NOMATCH) 899145522Sdarrenr#define FR_INOUT (FR_INQUE|FR_OUTQUE) 90053642Sguido 90153642Sguido/* 90253642Sguido * recognized flags for SIOCGETFF and SIOCSETFF, and get put in fr_flags 90353642Sguido */ 90453642Sguido#define FF_LOGPASS 0x10000000 90553642Sguido#define FF_LOGBLOCK 0x20000000 90653642Sguido#define FF_LOGNOMATCH 0x40000000 90753642Sguido#define FF_LOGGING (FF_LOGPASS|FF_LOGBLOCK|FF_LOGNOMATCH) 90853642Sguido#define FF_BLOCKNONIP 0x80000000 /* Solaris2 Only */ 90953642Sguido 91053642Sguido 911145522Sdarrenr/* 912145522Sdarrenr * Structure that passes information on what/how to flush to the kernel. 913145522Sdarrenr */ 914145522Sdarrenrtypedef struct ipfflush { 915255332Scy int ipflu_how; 916255332Scy int ipflu_arg; 917145522Sdarrenr} ipfflush_t; 918145522Sdarrenr 919145522Sdarrenr 920145522Sdarrenr/* 921145522Sdarrenr * 922145522Sdarrenr */ 923145522Sdarrenrtypedef struct ipfgetctl { 924255332Scy u_int ipfg_min; /* min value */ 925255332Scy u_int ipfg_current; /* current value */ 926255332Scy u_int ipfg_max; /* max value */ 927255332Scy u_int ipfg_default; /* default value */ 928255332Scy u_int ipfg_steps; /* value increments */ 929255332Scy char ipfg_name[40]; /* tag name for this control */ 930145522Sdarrenr} ipfgetctl_t; 931145522Sdarrenr 932145522Sdarrenrtypedef struct ipfsetctl { 933145522Sdarrenr int ipfs_which; /* 0 = min 1 = current 2 = max 3 = default */ 934145522Sdarrenr u_int ipfs_value; /* min value */ 935145522Sdarrenr char ipfs_name[40]; /* tag name for this control */ 936145522Sdarrenr} ipfsetctl_t; 937145522Sdarrenr 938145522Sdarrenr 939145522Sdarrenr/* 940145522Sdarrenr * Some of the statistics below are in their own counters, but most are kept 941145522Sdarrenr * in this single structure so that they can all easily be collected and 942145522Sdarrenr * copied back as required. 943145522Sdarrenr */ 944255332Scytypedef struct ipf_statistics { 945255332Scy u_long fr_icmp_coalesce; 946255332Scy u_long fr_tcp_frag; 947255332Scy u_long fr_tcp_pullup; 948255332Scy u_long fr_tcp_short; 949255332Scy u_long fr_tcp_small; 950255332Scy u_long fr_tcp_bad_flags; 951255332Scy u_long fr_udp_pullup; 952255332Scy u_long fr_ip_freed; 953255332Scy u_long fr_v6_ah_bad; 954255332Scy u_long fr_v6_bad; 955255332Scy u_long fr_v6_badfrag; 956255332Scy u_long fr_v6_dst_bad; 957255332Scy u_long fr_v6_esp_pullup; 958255332Scy u_long fr_v6_ext_short; 959255332Scy u_long fr_v6_ext_pullup; 960255332Scy u_long fr_v6_ext_hlen; 961255332Scy u_long fr_v6_frag_bad; 962255332Scy u_long fr_v6_frag_pullup; 963255332Scy u_long fr_v6_frag_size; 964255332Scy u_long fr_v6_gre_pullup; 965255332Scy u_long fr_v6_icmp6_pullup; 966255332Scy u_long fr_v6_rh_bad; 967255332Scy u_long fr_v6_badttl; /* TTL in packet doesn't reach minimum */ 968255332Scy u_long fr_v4_ah_bad; 969255332Scy u_long fr_v4_ah_pullup; 970255332Scy u_long fr_v4_esp_pullup; 971255332Scy u_long fr_v4_cipso_bad; 972255332Scy u_long fr_v4_cipso_tlen; 973255332Scy u_long fr_v4_gre_frag; 974255332Scy u_long fr_v4_gre_pullup; 975255332Scy u_long fr_v4_icmp_frag; 976255332Scy u_long fr_v4_icmp_pullup; 977255332Scy u_long fr_v4_badttl; /* TTL in packet doesn't reach minimum */ 978255332Scy u_long fr_v4_badsrc; /* source received doesn't match route */ 979255332Scy u_long fr_l4_badcksum; /* layer 4 header checksum failure */ 980255332Scy u_long fr_badcoalesces; 98153642Sguido u_long fr_pass; /* packets allowed */ 98253642Sguido u_long fr_block; /* packets denied */ 98353642Sguido u_long fr_nom; /* packets which don't match any rule */ 98457096Sguido u_long fr_short; /* packets which are short */ 98553642Sguido u_long fr_ppkl; /* packets allowed and logged */ 98653642Sguido u_long fr_bpkl; /* packets denied and logged */ 98753642Sguido u_long fr_npkl; /* packets unmatched and logged */ 98853642Sguido u_long fr_ret; /* packets for which a return is sent */ 98953642Sguido u_long fr_acct; /* packets for which counting was performed */ 99053642Sguido u_long fr_bnfr; /* bad attempts to allocate fragment state */ 99153642Sguido u_long fr_nfr; /* new fragment state kept */ 99253642Sguido u_long fr_cfr; /* add new fragment state but complete pkt */ 99353642Sguido u_long fr_bads; /* bad attempts to allocate packet state */ 99453642Sguido u_long fr_ads; /* new packet state kept */ 99553642Sguido u_long fr_chit; /* cached hit */ 996255332Scy u_long fr_cmiss; /* cached miss */ 99753642Sguido u_long fr_tcpbad; /* TCP checksum check failures */ 99853642Sguido u_long fr_pull[2]; /* good and bad pullup attempts */ 99953642Sguido u_long fr_bad; /* bad IP packets to the filter */ 1000145522Sdarrenr u_long fr_ipv6; /* IPv6 packets in/out */ 1001145522Sdarrenr u_long fr_ppshit; /* dropped because of pps ceiling */ 1002145522Sdarrenr u_long fr_ipud; /* IP id update failures */ 1003255332Scy u_long fr_blocked[FRB_MAX_VALUE + 1]; 1004255332Scy} ipf_statistics_t; 100553642Sguido 100653642Sguido/* 100753642Sguido * Log structure. Each packet header logged is prepended by one of these. 100853642Sguido * Following this in the log records read from the device will be an ipflog 100953642Sguido * structure which is then followed by any packet data. 101053642Sguido */ 101153642Sguidotypedef struct iplog { 1012110916Sdarrenr u_32_t ipl_magic; 1013110916Sdarrenr u_int ipl_count; 1014255332Scy u_32_t ipl_seqnum; 1015145522Sdarrenr struct timeval ipl_time; 1016110916Sdarrenr size_t ipl_dsize; 101753642Sguido struct iplog *ipl_next; 101853642Sguido} iplog_t; 101953642Sguido 1020145522Sdarrenr#define ipl_sec ipl_time.tv_sec 1021145522Sdarrenr#define ipl_usec ipl_time.tv_usec 1022110916Sdarrenr 1023145522Sdarrenr#define IPL_MAGIC 0x49504c4d /* 'IPLM' */ 1024145522Sdarrenr#define IPL_MAGIC_NAT 0x49504c4e /* 'IPLN' */ 1025145522Sdarrenr#define IPL_MAGIC_STATE 0x49504c53 /* 'IPLS' */ 102692685Sdarrenr#define IPLOG_SIZE sizeof(iplog_t) 102753642Sguido 102853642Sguidotypedef struct ipflog { 1029341708Scy u_int fl_unit; 1030255332Scy u_32_t fl_rule; 1031255332Scy u_32_t fl_flags; 1032255332Scy u_32_t fl_lflags; 1033255332Scy u_32_t fl_logtag; 1034145522Sdarrenr ipftag_t fl_nattag; 1035255332Scy u_short fl_plen; /* extra data after hlen */ 1036255332Scy u_short fl_loglevel; /* syslog log level */ 1037255332Scy char fl_group[FR_GROUPLEN]; 1038255332Scy u_char fl_hlen; /* length of IP headers saved */ 1039255332Scy u_char fl_dir; 1040255332Scy u_char fl_breason; /* from fin_reason */ 1041255332Scy u_char fl_family; /* address family of packet logged */ 1042255332Scy char fl_ifname[LIFNAMSIZ]; 104353642Sguido} ipflog_t; 104453642Sguido 104553642Sguido#ifndef IPF_LOGGING 104653642Sguido# define IPF_LOGGING 0 104753642Sguido#endif 104853642Sguido#ifndef IPF_DEFAULT_PASS 104953642Sguido# define IPF_DEFAULT_PASS FR_PASS 105053642Sguido#endif 105153642Sguido 1052255332Scy#define DEFAULT_IPFLOGSIZE 32768 1053145522Sdarrenr#ifndef IPFILTER_LOGSIZE 1054145522Sdarrenr# define IPFILTER_LOGSIZE DEFAULT_IPFLOGSIZE 1055145522Sdarrenr#else 1056255332Scy# if IPFILTER_LOGSIZE < 8192 1057255332Scy# error IPFILTER_LOGSIZE too small. Must be >= 8192 1058145522Sdarrenr# endif 1059145522Sdarrenr#endif 106053642Sguido 106180482Sdarrenr#define IPF_OPTCOPY 0x07ff00 /* bit mask of copied options */ 106280482Sdarrenr 106353642Sguido/* 106453642Sguido * Device filenames for reading log information. Use ipf on Solaris2 because 106553642Sguido * ipl is already a name used by something else. 106653642Sguido */ 106753642Sguido#ifndef IPL_NAME 106853642Sguido# if SOLARIS 106953642Sguido# define IPL_NAME "/dev/ipf" 107053642Sguido# else 107153642Sguido# define IPL_NAME "/dev/ipl" 107253642Sguido# endif 107353642Sguido#endif 1074145522Sdarrenr/* 1075145522Sdarrenr * Pathnames for various IP Filter control devices. Used by LKM 1076145522Sdarrenr * and userland, so defined here. 1077145522Sdarrenr */ 1078145522Sdarrenr#define IPNAT_NAME "/dev/ipnat" 1079145522Sdarrenr#define IPSTATE_NAME "/dev/ipstate" 1080145522Sdarrenr#define IPAUTH_NAME "/dev/ipauth" 1081145522Sdarrenr#define IPSYNC_NAME "/dev/ipsync" 1082145522Sdarrenr#define IPSCAN_NAME "/dev/ipscan" 1083145522Sdarrenr#define IPLOOKUP_NAME "/dev/iplookup" 108453642Sguido 108553642Sguido#define IPL_LOGIPF 0 /* Minor device #'s for accessing logs */ 108653642Sguido#define IPL_LOGNAT 1 108753642Sguido#define IPL_LOGSTATE 2 108853642Sguido#define IPL_LOGAUTH 3 1089145522Sdarrenr#define IPL_LOGSYNC 4 1090145522Sdarrenr#define IPL_LOGSCAN 5 1091145522Sdarrenr#define IPL_LOGLOOKUP 6 1092145522Sdarrenr#define IPL_LOGCOUNT 7 1093145522Sdarrenr#define IPL_LOGMAX 7 1094145522Sdarrenr#define IPL_LOGSIZE IPL_LOGMAX + 1 1095145522Sdarrenr#define IPL_LOGALL -1 1096145522Sdarrenr#define IPL_LOGNONE -2 109753642Sguido 1098145522Sdarrenr/* 1099145522Sdarrenr * For SIOCGETFS 1100145522Sdarrenr */ 1101145522Sdarrenrtypedef struct friostat { 1102255332Scy ipf_statistics_t f_st[2]; 1103255332Scy frentry_t *f_ipf[2][2]; 1104255332Scy frentry_t *f_acct[2][2]; 1105255332Scy frentry_t *f_auth; 1106255332Scy struct frgroup *f_groups[IPL_LOGSIZE][2]; 1107255332Scy u_long f_froute[2]; 1108255332Scy u_long f_log_ok; 1109255332Scy u_long f_log_fail; 1110255332Scy u_long f_rb_no_mem; 1111255332Scy u_long f_rb_node_max; 1112255332Scy u_32_t f_ticks; 1113255332Scy int f_locks[IPL_LOGSIZE]; 1114255332Scy int f_defpass; /* default pass - from fr_pass */ 1115255332Scy int f_active; /* 1 or 0 - active rule set */ 1116255332Scy int f_running; /* 1 if running, else 0 */ 1117255332Scy int f_logging; /* 1 if enabled, else 0 */ 1118255332Scy int f_features; 1119255332Scy char f_version[32]; /* version string */ 1120145522Sdarrenr} friostat_t; 1121145522Sdarrenr 1122145522Sdarrenr#define f_fin f_ipf[0] 1123145522Sdarrenr#define f_fout f_ipf[1] 1124145522Sdarrenr#define f_acctin f_acct[0] 1125145522Sdarrenr#define f_acctout f_acct[1] 1126145522Sdarrenr 1127145522Sdarrenr#define IPF_FEAT_LKM 0x001 1128145522Sdarrenr#define IPF_FEAT_LOG 0x002 1129145522Sdarrenr#define IPF_FEAT_LOOKUP 0x004 1130145522Sdarrenr#define IPF_FEAT_BPF 0x008 1131145522Sdarrenr#define IPF_FEAT_COMPILED 0x010 1132145522Sdarrenr#define IPF_FEAT_CKSUM 0x020 1133145522Sdarrenr#define IPF_FEAT_SYNC 0x040 1134145522Sdarrenr#define IPF_FEAT_SCAN 0x080 1135145522Sdarrenr#define IPF_FEAT_IPV6 0x100 1136145522Sdarrenr 1137145522Sdarrenrtypedef struct optlist { 1138145522Sdarrenr u_short ol_val; 1139145522Sdarrenr int ol_bit; 1140145522Sdarrenr} optlist_t; 1141145522Sdarrenr 1142145522Sdarrenr 1143145522Sdarrenr/* 1144145522Sdarrenr * Group list structure. 1145145522Sdarrenr */ 1146145522Sdarrenrtypedef struct frgroup { 1147255332Scy struct frgroup *fg_next; 1148255332Scy struct frentry *fg_head; 1149255332Scy struct frentry *fg_start; 1150255332Scy struct frgroup **fg_set; 1151255332Scy u_32_t fg_flags; 1152255332Scy int fg_ref; 1153255332Scy char fg_name[FR_GROUPLEN]; 1154145522Sdarrenr} frgroup_t; 1155145522Sdarrenr 1156145522Sdarrenr#define FG_NAME(g) (*(g)->fg_name == '\0' ? "" : (g)->fg_name) 1157145522Sdarrenr 1158145522Sdarrenr 1159145522Sdarrenr/* 1160145522Sdarrenr * Used by state and NAT tables 1161145522Sdarrenr */ 1162145522Sdarrenrtypedef struct icmpinfo { 1163255332Scy u_short ici_id; 1164255332Scy u_short ici_seq; 1165255332Scy u_char ici_type; 1166145522Sdarrenr} icmpinfo_t; 1167145522Sdarrenr 1168145522Sdarrenrtypedef struct udpinfo { 1169255332Scy u_short us_sport; 1170255332Scy u_short us_dport; 1171145522Sdarrenr} udpinfo_t; 1172145522Sdarrenr 1173145522Sdarrenr 1174145522Sdarrenrtypedef struct tcpdata { 1175255332Scy u_32_t td_end; 1176255332Scy u_32_t td_maxend; 1177255332Scy u_32_t td_maxwin; 1178255332Scy u_32_t td_winscale; 1179255332Scy u_32_t td_maxseg; 1180255332Scy int td_winflags; 1181145522Sdarrenr} tcpdata_t; 1182145522Sdarrenr 1183145522Sdarrenr#define TCP_WSCALE_MAX 14 1184145522Sdarrenr 1185145522Sdarrenr#define TCP_WSCALE_SEEN 0x00000001 1186145522Sdarrenr#define TCP_WSCALE_FIRST 0x00000002 1187153876Sguido#define TCP_SACK_PERMIT 0x00000004 1188145522Sdarrenr 1189145522Sdarrenr 1190145522Sdarrenrtypedef struct tcpinfo { 1191255332Scy u_32_t ts_sport; 1192255332Scy u_32_t ts_dport; 1193255332Scy tcpdata_t ts_data[2]; 1194145522Sdarrenr} tcpinfo_t; 1195145522Sdarrenr 1196145522Sdarrenr 1197153876Sguido/* 1198153876Sguido * Structures to define a GRE header as seen in a packet. 1199153876Sguido */ 1200145522Sdarrenrstruct grebits { 1201255332Scy#if defined(sparc) 1202255332Scy u_32_t grb_ver:3; 1203255332Scy u_32_t grb_flags:3; 1204255332Scy u_32_t grb_A:1; 1205255332Scy u_32_t grb_recur:1; 1206255332Scy u_32_t grb_s:1; 1207255332Scy u_32_t grb_S:1; 1208255332Scy u_32_t grb_K:1; 1209255332Scy u_32_t grb_R:1; 1210255332Scy u_32_t grb_C:1; 1211255332Scy#else 1212255332Scy u_32_t grb_C:1; 1213255332Scy u_32_t grb_R:1; 1214255332Scy u_32_t grb_K:1; 1215255332Scy u_32_t grb_S:1; 1216255332Scy u_32_t grb_s:1; 1217255332Scy u_32_t grb_recur:1; 1218255332Scy u_32_t grb_A:1; 1219255332Scy u_32_t grb_flags:3; 1220255332Scy u_32_t grb_ver:3; 1221255332Scy#endif 1222255332Scy u_short grb_ptype; 1223145522Sdarrenr}; 1224145522Sdarrenr 1225145522Sdarrenrtypedef struct grehdr { 1226145522Sdarrenr union { 1227145522Sdarrenr struct grebits gru_bits; 1228145522Sdarrenr u_short gru_flags; 1229145522Sdarrenr } gr_un; 1230255332Scy u_short gr_len; 1231255332Scy u_short gr_call; 1232145522Sdarrenr} grehdr_t; 1233145522Sdarrenr 1234145522Sdarrenr#define gr_flags gr_un.gru_flags 1235145522Sdarrenr#define gr_bits gr_un.gru_bits 1236145522Sdarrenr#define gr_ptype gr_bits.grb_ptype 1237145522Sdarrenr#define gr_C gr_bits.grb_C 1238145522Sdarrenr#define gr_R gr_bits.grb_R 1239145522Sdarrenr#define gr_K gr_bits.grb_K 1240145522Sdarrenr#define gr_S gr_bits.grb_S 1241145522Sdarrenr#define gr_s gr_bits.grb_s 1242145522Sdarrenr#define gr_recur gr_bits.grb_recur 1243145522Sdarrenr#define gr_A gr_bits.grb_A 1244145522Sdarrenr#define gr_ver gr_bits.grb_ver 1245145522Sdarrenr 1246153876Sguido/* 1247153876Sguido * GRE information tracked by "keep state" 1248153876Sguido */ 1249145522Sdarrenrtypedef struct greinfo { 1250255332Scy u_short gs_call[2]; 1251255332Scy u_short gs_flags; 1252255332Scy u_short gs_ptype; 1253145522Sdarrenr} greinfo_t; 1254145522Sdarrenr 1255145522Sdarrenr#define GRE_REV(x) ((ntohs(x) >> 13) & 7) 1256145522Sdarrenr 1257145522Sdarrenr 1258145522Sdarrenr/* 1259153876Sguido * Format of an Authentication header 1260153876Sguido */ 1261153876Sguidotypedef struct authhdr { 1262255332Scy u_char ah_next; 1263255332Scy u_char ah_plen; 1264255332Scy u_short ah_reserved; 1265255332Scy u_32_t ah_spi; 1266255332Scy u_32_t ah_seq; 1267153876Sguido /* Following the sequence number field is 0 or more bytes of */ 1268153876Sguido /* authentication data, as specified by ah_plen - RFC 2402. */ 1269153876Sguido} authhdr_t; 1270153876Sguido 1271153876Sguido 1272153876Sguido/* 1273145522Sdarrenr * Timeout tail queue list member 1274145522Sdarrenr */ 1275145522Sdarrenrtypedef struct ipftqent { 1276145522Sdarrenr struct ipftqent **tqe_pnext; 1277145522Sdarrenr struct ipftqent *tqe_next; 1278145522Sdarrenr struct ipftq *tqe_ifq; 1279255332Scy void *tqe_parent; /* pointer back to NAT/state struct */ 1280255332Scy u_32_t tqe_die; /* when this entriy is to die */ 1281255332Scy u_32_t tqe_touched; 1282255332Scy int tqe_flags; 1283255332Scy int tqe_state[2]; /* current state of this entry */ 1284145522Sdarrenr} ipftqent_t; 1285145522Sdarrenr 1286145522Sdarrenr#define TQE_RULEBASED 0x00000001 1287255332Scy#define TQE_DELETE 0x00000002 1288145522Sdarrenr 1289145522Sdarrenr 1290145522Sdarrenr/* 1291145522Sdarrenr * Timeout tail queue head for IPFilter 1292145522Sdarrenr */ 1293145522Sdarrenrtypedef struct ipftq { 1294145522Sdarrenr ipfmutex_t ifq_lock; 1295255332Scy u_int ifq_ttl; 1296145522Sdarrenr ipftqent_t *ifq_head; 1297145522Sdarrenr ipftqent_t **ifq_tail; 1298255332Scy struct ipftq *ifq_next; 1299255332Scy struct ipftq **ifq_pnext; 1300255332Scy int ifq_ref; 1301255332Scy u_int ifq_flags; 1302145522Sdarrenr} ipftq_t; 1303145522Sdarrenr 1304145522Sdarrenr#define IFQF_USER 0x01 /* User defined aging */ 1305145522Sdarrenr#define IFQF_DELETE 0x02 /* Marked for deletion */ 1306145522Sdarrenr#define IFQF_PROXY 0x04 /* Timeout queue in use by a proxy */ 1307145522Sdarrenr 1308255332Scy#define IPFTQ_INIT(x,y,z) do { \ 1309255332Scy (x)->ifq_ttl = (y); \ 1310255332Scy (x)->ifq_head = NULL; \ 1311255332Scy (x)->ifq_ref = 1; \ 1312255332Scy (x)->ifq_tail = &(x)->ifq_head; \ 1313255332Scy MUTEX_INIT(&(x)->ifq_lock, (z)); \ 1314255332Scy } while (0) 1315255332Scy 1316145522Sdarrenr#define IPF_HZ_MULT 1 1317145522Sdarrenr#define IPF_HZ_DIVIDE 2 /* How many times a second ipfilter */ 1318145522Sdarrenr /* checks its timeout queues. */ 1319145522Sdarrenr#define IPF_TTLVAL(x) (((x) / IPF_HZ_MULT) * IPF_HZ_DIVIDE) 1320145522Sdarrenr 1321255332Scytypedef int (*ipftq_delete_fn_t)(struct ipf_main_softc_s *, void *); 1322170268Sdarrenr 1323145522Sdarrenr 1324145522Sdarrenr/* 1325145522Sdarrenr * Object structure description. For passing through in ioctls. 1326145522Sdarrenr */ 1327145522Sdarrenrtypedef struct ipfobj { 1328255332Scy u_32_t ipfo_rev; /* IPFilter version number */ 1329255332Scy u_32_t ipfo_size; /* size of object at ipfo_ptr */ 1330255332Scy void *ipfo_ptr; /* pointer to object */ 1331255332Scy int ipfo_type; /* type of object being pointed to */ 1332255332Scy int ipfo_offset; /* bytes from ipfo_ptr where to start */ 1333255332Scy int ipfo_retval; /* return value */ 1334255332Scy u_char ipfo_xxxpad[28]; /* reserved for future use */ 1335145522Sdarrenr} ipfobj_t; 1336145522Sdarrenr 1337145522Sdarrenr#define IPFOBJ_FRENTRY 0 /* struct frentry */ 1338145522Sdarrenr#define IPFOBJ_IPFSTAT 1 /* struct friostat */ 1339145522Sdarrenr#define IPFOBJ_IPFINFO 2 /* struct fr_info */ 1340145522Sdarrenr#define IPFOBJ_AUTHSTAT 3 /* struct fr_authstat */ 1341145522Sdarrenr#define IPFOBJ_FRAGSTAT 4 /* struct ipfrstat */ 1342145522Sdarrenr#define IPFOBJ_IPNAT 5 /* struct ipnat */ 1343145522Sdarrenr#define IPFOBJ_NATSTAT 6 /* struct natstat */ 1344145522Sdarrenr#define IPFOBJ_STATESAVE 7 /* struct ipstate_save */ 1345145522Sdarrenr#define IPFOBJ_NATSAVE 8 /* struct nat_save */ 1346145522Sdarrenr#define IPFOBJ_NATLOOKUP 9 /* struct natlookup */ 1347145522Sdarrenr#define IPFOBJ_IPSTATE 10 /* struct ipstate */ 1348145522Sdarrenr#define IPFOBJ_STATESTAT 11 /* struct ips_stat */ 1349145522Sdarrenr#define IPFOBJ_FRAUTH 12 /* struct frauth */ 1350145522Sdarrenr#define IPFOBJ_TUNEABLE 13 /* struct ipftune */ 1351170268Sdarrenr#define IPFOBJ_NAT 14 /* struct nat */ 1352170268Sdarrenr#define IPFOBJ_IPFITER 15 /* struct ipfruleiter */ 1353170268Sdarrenr#define IPFOBJ_GENITER 16 /* struct ipfgeniter */ 1354170268Sdarrenr#define IPFOBJ_GTABLE 17 /* struct ipftable */ 1355170268Sdarrenr#define IPFOBJ_LOOKUPITER 18 /* struct ipflookupiter */ 1356255332Scy#define IPFOBJ_STATETQTAB 19 /* struct ipftq * NSTATES */ 1357255332Scy#define IPFOBJ_IPFEXPR 20 1358255332Scy#define IPFOBJ_PROXYCTL 21 /* strct ap_ctl */ 1359255332Scy#define IPFOBJ_FRIPF 22 /* structfripf */ 1360255332Scy#define IPFOBJ_COUNT 23 /* How many #defines are above this? */ 1361145522Sdarrenr 1362145522Sdarrenr 1363145522Sdarrenrtypedef union ipftunevalptr { 1364255332Scy void *ipftp_void; 1365255332Scy u_long *ipftp_long; 1366255332Scy u_int *ipftp_int; 1367255332Scy u_short *ipftp_short; 1368255332Scy u_char *ipftp_char; 1369255332Scy u_long ipftp_offset; 1370145522Sdarrenr} ipftunevalptr_t; 1371145522Sdarrenr 1372255332Scytypedef union ipftuneval { 1373255332Scy u_long ipftu_long; 1374255332Scy u_int ipftu_int; 1375255332Scy u_short ipftu_short; 1376255332Scy u_char ipftu_char; 1377255332Scy} ipftuneval_t; 1378255332Scy 1379255332Scystruct ipftuneable; 1380255332Scytypedef int (* ipftunefunc_t) __P((struct ipf_main_softc_s *, struct ipftuneable *, ipftuneval_t *)); 1381255332Scy 1382145522Sdarrenrtypedef struct ipftuneable { 1383145522Sdarrenr ipftunevalptr_t ipft_una; 1384170268Sdarrenr const char *ipft_name; 1385145522Sdarrenr u_long ipft_min; 1386145522Sdarrenr u_long ipft_max; 1387145522Sdarrenr int ipft_sz; 1388145522Sdarrenr int ipft_flags; 1389145522Sdarrenr struct ipftuneable *ipft_next; 1390255332Scy ipftunefunc_t ipft_func; 1391145522Sdarrenr} ipftuneable_t; 1392145522Sdarrenr 1393145522Sdarrenr#define ipft_addr ipft_una.ipftp_void 1394145522Sdarrenr#define ipft_plong ipft_una.ipftp_long 1395145522Sdarrenr#define ipft_pint ipft_una.ipftp_int 1396145522Sdarrenr#define ipft_pshort ipft_una.ipftp_short 1397145522Sdarrenr#define ipft_pchar ipft_una.ipftp_char 1398145522Sdarrenr 1399145522Sdarrenr#define IPFT_RDONLY 1 /* read-only */ 1400145522Sdarrenr#define IPFT_WRDISABLED 2 /* write when disabled only */ 1401145522Sdarrenr 1402145522Sdarrenrtypedef struct ipftune { 1403145522Sdarrenr void *ipft_cookie; 1404145522Sdarrenr ipftuneval_t ipft_un; 1405145522Sdarrenr u_long ipft_min; 1406145522Sdarrenr u_long ipft_max; 1407145522Sdarrenr int ipft_sz; 1408145522Sdarrenr int ipft_flags; 1409145522Sdarrenr char ipft_name[80]; 1410145522Sdarrenr} ipftune_t; 1411145522Sdarrenr 1412145522Sdarrenr#define ipft_vlong ipft_un.ipftu_long 1413145522Sdarrenr#define ipft_vint ipft_un.ipftu_int 1414145522Sdarrenr#define ipft_vshort ipft_un.ipftu_short 1415145522Sdarrenr#define ipft_vchar ipft_un.ipftu_char 1416145522Sdarrenr 1417170268Sdarrenr/* 1418255332Scy * Hash table header 1419255332Scy */ 1420255332Scy#define IPFHASH(x,y) typedef struct { \ 1421255332Scy ipfrwlock_t ipfh_lock; \ 1422255332Scy struct x *ipfh_head; \ 1423255332Scy } y 1424255332Scy 1425255332Scy/* 1426255332Scy** HPUX Port 1427255332Scy*/ 1428255332Scy#ifdef __hpux 1429255332Scy/* HP-UX locking sequence deadlock detection module lock MAJOR ID */ 1430255332Scy# define IPF_SMAJ 0 /* temp assignment XXX, not critical */ 1431255332Scy#endif 1432255332Scy 1433255332Scy#if !defined(CDEV_MAJOR) && defined (__FreeBSD_version) && \ 1434255332Scy (__FreeBSD_version >= 220000) 1435255332Scy# define CDEV_MAJOR 79 1436255332Scy#endif 1437255332Scy 1438255332Scy#ifdef _KERNEL 1439255332Scy# define FR_VERBOSE(verb_pr) 1440255332Scy# define FR_DEBUG(verb_pr) 1441255332Scy#else 1442255332Scyextern void ipfkdebug __P((char *, ...)); 1443255332Scyextern void ipfkverbose __P((char *, ...)); 1444255332Scy# define FR_VERBOSE(verb_pr) ipfkverbose verb_pr 1445255332Scy# define FR_DEBUG(verb_pr) ipfkdebug verb_pr 1446255332Scy#endif 1447255332Scy 1448255332Scy/* 1449170268Sdarrenr * 1450170268Sdarrenr */ 1451170268Sdarrenrtypedef struct ipfruleiter { 1452170268Sdarrenr int iri_inout; 1453170268Sdarrenr char iri_group[FR_GROUPLEN]; 1454170268Sdarrenr int iri_active; 1455170268Sdarrenr int iri_nrules; 1456255332Scy int iri_v; /* No longer used (compatibility) */ 1457170268Sdarrenr frentry_t *iri_rule; 1458170268Sdarrenr} ipfruleiter_t; 1459145522Sdarrenr 1460145522Sdarrenr/* 1461170268Sdarrenr * Values for iri_inout 1462170268Sdarrenr */ 1463170268Sdarrenr#define F_IN 0 1464170268Sdarrenr#define F_OUT 1 1465170268Sdarrenr#define F_ACIN 2 1466170268Sdarrenr#define F_ACOUT 3 1467170268Sdarrenr 1468170268Sdarrenr 1469170268Sdarrenrtypedef struct ipfgeniter { 1470170268Sdarrenr int igi_type; 1471170268Sdarrenr int igi_nitems; 1472170268Sdarrenr void *igi_data; 1473170268Sdarrenr} ipfgeniter_t; 1474170268Sdarrenr 1475170268Sdarrenr#define IPFGENITER_IPF 0 1476170268Sdarrenr#define IPFGENITER_NAT 1 1477170268Sdarrenr#define IPFGENITER_IPNAT 2 1478170268Sdarrenr#define IPFGENITER_FRAG 3 1479170268Sdarrenr#define IPFGENITER_AUTH 4 1480170268Sdarrenr#define IPFGENITER_STATE 5 1481170268Sdarrenr#define IPFGENITER_NATFRAG 6 1482170268Sdarrenr#define IPFGENITER_HOSTMAP 7 1483170268Sdarrenr#define IPFGENITER_LOOKUP 8 1484170268Sdarrenr 1485170268Sdarrenrtypedef struct ipftable { 1486170268Sdarrenr int ita_type; 1487170268Sdarrenr void *ita_table; 1488170268Sdarrenr} ipftable_t; 1489170268Sdarrenr 1490170268Sdarrenr#define IPFTABLE_BUCKETS 1 1491172776Sdarrenr#define IPFTABLE_BUCKETS_NATIN 2 1492172776Sdarrenr#define IPFTABLE_BUCKETS_NATOUT 3 1493170268Sdarrenr 1494170268Sdarrenr 1495255332Scytypedef struct ipf_v4_masktab_s { 1496255332Scy u_32_t imt4_active[33]; 1497255332Scy int imt4_masks[33]; 1498255332Scy int imt4_max; 1499255332Scy} ipf_v4_masktab_t; 1500255332Scy 1501255332Scytypedef struct ipf_v6_masktab_s { 1502255332Scy i6addr_t imt6_active[129]; 1503255332Scy int imt6_masks[129]; 1504255332Scy int imt6_max; 1505255332Scy} ipf_v6_masktab_t; 1506255332Scy 1507255332Scy 1508170268Sdarrenr/* 1509170268Sdarrenr * 1510170268Sdarrenr */ 1511170268Sdarrenrtypedef struct ipftoken { 1512170268Sdarrenr struct ipftoken *ipt_next; 1513170268Sdarrenr struct ipftoken **ipt_pnext; 1514170268Sdarrenr void *ipt_ctx; 1515170268Sdarrenr void *ipt_data; 1516170268Sdarrenr u_long ipt_die; 1517170268Sdarrenr int ipt_type; 1518170268Sdarrenr int ipt_uid; 1519170268Sdarrenr int ipt_subtype; 1520255332Scy int ipt_ref; 1521255332Scy int ipt_complete; 1522170268Sdarrenr} ipftoken_t; 1523170268Sdarrenr 1524170268Sdarrenr 1525170268Sdarrenr/* 1526255332Scy * 1527255332Scy */ 1528255332Scytypedef struct ipfexp { 1529255332Scy int ipfe_cmd; 1530255332Scy int ipfe_not; 1531255332Scy int ipfe_narg; 1532255332Scy int ipfe_size; 1533255332Scy int ipfe_arg0[1]; 1534255332Scy} ipfexp_t; 1535145522Sdarrenr 153653642Sguido/* 1537255332Scy * Currently support commands (ipfe_cmd) 1538255332Scy * 32bits is split up follows: 1539255332Scy * aabbcccc 1540255332Scy * aa = 0 = packet matching, 1 = meta data matching 1541255332Scy * bb = IP protocol number 1542255332Scy * cccc = command 154353642Sguido */ 1544255332Scy#define IPF_EXP_IP_PR 0x00000001 1545255332Scy#define IPF_EXP_IP_ADDR 0x00000002 1546255332Scy#define IPF_EXP_IP_SRCADDR 0x00000003 1547255332Scy#define IPF_EXP_IP_DSTADDR 0x00000004 1548255332Scy#define IPF_EXP_IP6_ADDR 0x00000005 1549255332Scy#define IPF_EXP_IP6_SRCADDR 0x00000006 1550255332Scy#define IPF_EXP_IP6_DSTADDR 0x00000007 1551255332Scy#define IPF_EXP_TCP_FLAGS 0x00060001 1552255332Scy#define IPF_EXP_TCP_PORT 0x00060002 1553255332Scy#define IPF_EXP_TCP_SPORT 0x00060003 1554255332Scy#define IPF_EXP_TCP_DPORT 0x00060004 1555255332Scy#define IPF_EXP_UDP_PORT 0x00110002 1556255332Scy#define IPF_EXP_UDP_SPORT 0x00110003 1557255332Scy#define IPF_EXP_UDP_DPORT 0x00110004 1558255332Scy#define IPF_EXP_IDLE_GT 0x01000001 1559255332Scy#define IPF_EXP_TCP_STATE 0x01060002 1560255332Scy#define IPF_EXP_END 0xffffffff 1561255332Scy 1562255332Scy#define ONE_DAY IPF_TTLVAL(1 * 86400) /* 1 day */ 1563255332Scy#define FIVE_DAYS (5 * ONE_DAY) 1564255332Scy 1565255332Scytypedef struct ipf_main_softc_s { 1566255332Scy struct ipf_main_softc_s *ipf_next; 1567255332Scy ipfmutex_t ipf_rw; 1568255332Scy ipfmutex_t ipf_timeoutlock; 1569255332Scy ipfrwlock_t ipf_mutex; 1570255332Scy ipfrwlock_t ipf_frag; 1571255332Scy ipfrwlock_t ipf_global; 1572255332Scy ipfrwlock_t ipf_tokens; 1573255332Scy ipfrwlock_t ipf_state; 1574255332Scy ipfrwlock_t ipf_nat; 1575255332Scy ipfrwlock_t ipf_natfrag; 1576255332Scy ipfrwlock_t ipf_poolrw; 1577255332Scy int ipf_dynamic_softc; 1578255332Scy int ipf_refcnt; 1579255332Scy int ipf_running; 1580255332Scy int ipf_flags; 1581255332Scy int ipf_active; 1582255332Scy int ipf_control_forwarding; 1583255332Scy int ipf_update_ipid; 1584255332Scy int ipf_chksrc; /* causes a system crash if enabled */ 1585255332Scy int ipf_pass; 1586255332Scy int ipf_minttl; 1587255332Scy int ipf_icmpminfragmtu; 1588255332Scy int ipf_interror; /* Should be in a struct that is per */ 1589255332Scy /* thread or process. Does not belong */ 1590255332Scy /* here but there's a lot more work */ 1591255332Scy /* in doing that properly. For now, */ 1592255332Scy /* it is squatting. */ 1593255332Scy u_int ipf_tcpidletimeout; 1594255332Scy u_int ipf_tcpclosewait; 1595255332Scy u_int ipf_tcplastack; 1596255332Scy u_int ipf_tcptimewait; 1597255332Scy u_int ipf_tcptimeout; 1598255332Scy u_int ipf_tcpsynsent; 1599255332Scy u_int ipf_tcpsynrecv; 1600255332Scy u_int ipf_tcpclosed; 1601255332Scy u_int ipf_tcphalfclosed; 1602255332Scy u_int ipf_udptimeout; 1603255332Scy u_int ipf_udpacktimeout; 1604255332Scy u_int ipf_icmptimeout; 1605255332Scy u_int ipf_icmpacktimeout; 1606255332Scy u_int ipf_iptimeout; 1607255332Scy u_long ipf_ticks; 1608255332Scy u_long ipf_userifqs; 1609255332Scy u_long ipf_rb_no_mem; 1610255332Scy u_long ipf_rb_node_max; 1611255332Scy u_long ipf_frouteok[2]; 1612255332Scy ipftuneable_t *ipf_tuners; 1613255332Scy void *ipf_frag_soft; 1614255332Scy void *ipf_nat_soft; 1615255332Scy void *ipf_state_soft; 1616255332Scy void *ipf_auth_soft; 1617255332Scy void *ipf_proxy_soft; 1618255332Scy void *ipf_sync_soft; 1619255332Scy void *ipf_lookup_soft; 1620255332Scy void *ipf_log_soft; 1621255332Scy struct frgroup *ipf_groups[IPL_LOGSIZE][2]; 1622255332Scy frentry_t *ipf_rules[2][2]; 1623255332Scy frentry_t *ipf_acct[2][2]; 1624255332Scy frentry_t *ipf_rule_explist[2]; 1625255332Scy ipftoken_t *ipf_token_head; 1626255332Scy ipftoken_t **ipf_token_tail; 1627255332Scy#if defined(__FreeBSD_version) && (__FreeBSD_version >= 300000) && \ 1628255332Scy defined(_KERNEL) 1629255755Scy struct callout ipf_slow_ch; 1630255332Scy#endif 1631255332Scy#if defined(linux) && defined(_KERNEL) 1632255332Scy struct timer_list ipf_timer; 1633255332Scy#endif 1634255332Scy#if NETBSD_GE_REV(104040000) 1635255332Scy struct callout ipf_slow_ch; 1636255332Scy#endif 1637255332Scy#if SOLARIS 1638255332Scy# if SOLARIS2 >= 7 1639255332Scy timeout_id_t ipf_slow_ch; 1640255332Scy# else 1641255332Scy int ipf_slow_ch; 164253642Sguido# endif 1643255332Scy#endif 1644255332Scy#if defined(_KERNEL) 1645255332Scy# if SOLARIS 1646255332Scy struct pollhead ipf_poll_head[IPL_LOGSIZE]; 1647255332Scy void *ipf_dip; 1648255332Scy# if defined(INSTANCES) 1649255332Scy int ipf_get_loopback; 1650255332Scy u_long ipf_idnum; 1651255332Scy net_handle_t ipf_nd_v4; 1652255332Scy net_handle_t ipf_nd_v6; 1653255332Scy hook_t *ipf_hk_v4_in; 1654255332Scy hook_t *ipf_hk_v4_out; 1655255332Scy hook_t *ipf_hk_v4_nic; 1656255332Scy hook_t *ipf_hk_v6_in; 1657255332Scy hook_t *ipf_hk_v6_out; 1658255332Scy hook_t *ipf_hk_v6_nic; 1659255332Scy hook_t *ipf_hk_loop_v4_in; 1660255332Scy hook_t *ipf_hk_loop_v4_out; 1661255332Scy hook_t *ipf_hk_loop_v6_in; 1662255332Scy hook_t *ipf_hk_loop_v6_out; 1663255332Scy# endif 1664255332Scy# else 1665255332Scy# if defined(linux) && defined(_KERNEL) 1666255332Scy struct poll_table_struct ipf_selwait[IPL_LOGSIZE]; 1667255332Scy wait_queue_head_t iplh_linux[IPL_LOGSIZE]; 1668255332Scy# else 1669255332Scy struct selinfo ipf_selwait[IPL_LOGSIZE]; 1670255332Scy# endif 167153642Sguido# endif 167253642Sguido#endif 1673255332Scy void *ipf_slow; 1674255332Scy ipf_statistics_t ipf_stats[2]; 1675255332Scy u_char ipf_iss_secret[32]; 1676255332Scy u_short ipf_ip_id; 1677255332Scy} ipf_main_softc_t; 167853642Sguido 1679255332Scy#define IPFERROR(_e) do { softc->ipf_interror = (_e); \ 1680255332Scy DT1(user_error, int, _e); \ 1681255332Scy } while (0) 1682161356Sguido 168353642Sguido#ifndef _KERNEL 1684255332Scyextern int ipf_check __P((void *, struct ip *, int, void *, int, mb_t **)); 1685255332Scyextern int (*ipf_checkp) __P((ip_t *, int, void *, int, mb_t **)); 168660851Sdarrenrextern struct ifnet *get_unit __P((char *, int)); 1687145522Sdarrenrextern char *get_ifname __P((struct ifnet *)); 1688255332Scyextern int ipfioctl __P((ipf_main_softc_t *, int, ioctlcmd_t, 1689255332Scy caddr_t, int)); 1690145522Sdarrenrextern void m_freem __P((mb_t *)); 1691255332Scyextern size_t msgdsize __P((mb_t *)); 1692161356Sguidoextern int bcopywrap __P((void *, void *, size_t)); 169353642Sguido#else /* #ifndef _KERNEL */ 169453642Sguido# if defined(__NetBSD__) && defined(PFIL_HOOKS) 169553642Sguidoextern void ipfilterattach __P((int)); 169653642Sguido# endif 169753642Sguidoextern int ipl_enable __P((void)); 169853642Sguidoextern int ipl_disable __P((void)); 1699145522Sdarrenr# ifdef MENTAT 1700255332Scyextern int ipf_check __P((void *, struct ip *, int, void *, int, void *, 1701255332Scy mblk_t **)); 1702145522Sdarrenr# if SOLARIS 1703255332Scyextern void ipf_prependmbt(fr_info_t *, mblk_t *); 1704145522Sdarrenr# if SOLARIS2 >= 7 1705255332Scyextern int ipfioctl __P((dev_t, int, intptr_t, int, cred_t *, int *)); 1706145522Sdarrenr# else 1707255332Scyextern int ipfioctl __P((dev_t, int, int *, int, cred_t *, int *)); 1708145522Sdarrenr# endif 1709145522Sdarrenr# endif 1710145522Sdarrenr# ifdef __hpux 1711255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int)); 1712255332Scyextern int ipf_select __P((dev_t, int)); 1713145522Sdarrenr# endif 1714255332Scyextern int ipf_qout __P((queue_t *, mblk_t *)); 1715145522Sdarrenr# else /* MENTAT */ 1716255332Scyextern int ipf_check __P((void *, struct ip *, int, void *, int, mb_t **)); 171753642Sguidoextern int (*fr_checkp) __P((ip_t *, int, void *, int, mb_t **)); 171853642Sguidoextern size_t mbufchainlen __P((mb_t *)); 171953642Sguido# ifdef __sgi 172053642Sguido# include <sys/cred.h> 1721255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int, cred_t *, int *)); 172253642Sguidoextern int ipfilter_sgi_attach __P((void)); 172353642Sguidoextern void ipfilter_sgi_detach __P((void)); 172453642Sguidoextern void ipfilter_sgi_intfsync __P((void)); 172553642Sguido# else 172653642Sguido# ifdef IPFILTER_LKM 1727255332Scyextern int ipf_identify __P((char *)); 172853642Sguido# endif 1729255332Scy# if BSDOS_GE_REV(199510) || FREEBSD_GE_REV(220000) || \ 1730255332Scy (defined(NetBSD) && (NetBSD >= 199511)) || defined(__OpenBSD__) 1731255332Scy# if defined(__NetBSD__) || BSDOS_GE_REV(199701) || \ 1732255332Scy defined(__OpenBSD__) || FREEBSD_GE_REV(300000) 1733145522Sdarrenr# if (__FreeBSD_version >= 500024) 1734145522Sdarrenr# if (__FreeBSD_version >= 502116) 1735255332Scyextern int ipfioctl __P((struct cdev*, u_long, caddr_t, int, struct thread *)); 1736145522Sdarrenr# else 1737255332Scyextern int ipfioctl __P((dev_t, u_long, caddr_t, int, struct thread *)); 1738145522Sdarrenr# endif /* __FreeBSD_version >= 502116 */ 1739145522Sdarrenr# else 1740255332Scy# if NETBSD_GE_REV(499001000) 1741255332Scyextern int ipfioctl __P((dev_t, u_long, void *, int, struct lwp *)); 1742170268Sdarrenr# else 1743255332Scy# if NETBSD_GE_REV(399001400) 1744255332Scyextern int ipfioctl __P((dev_t, u_long, caddr_t, int, struct lwp *)); 1745170268Sdarrenr# else 1746255332Scyextern int ipfioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 1747170268Sdarrenr# endif 1748170268Sdarrenr# endif 1749145522Sdarrenr# endif /* __FreeBSD_version >= 500024 */ 175053642Sguido# else 1751255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int, struct proc *)); 175253642Sguido# endif 175353642Sguido# else 1754145522Sdarrenr# ifdef linux 1755255332Scyextern int ipfioctl __P((struct inode *, struct file *, u_int, u_long)); 1756145522Sdarrenr# else 1757255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int)); 1758145522Sdarrenr# endif 175953642Sguido# endif /* (_BSDI_VERSION >= 199510) */ 176053642Sguido# endif /* __ sgi */ 1761145522Sdarrenr# endif /* MENTAT */ 1762145522Sdarrenr 1763172776Sdarrenr# if defined(__FreeBSD_version) 1764172776Sdarrenrextern int ipf_pfil_hook __P((void)); 1765172776Sdarrenrextern int ipf_pfil_unhook __P((void)); 1766172776Sdarrenrextern void ipf_event_reg __P((void)); 1767172776Sdarrenrextern void ipf_event_dereg __P((void)); 1768172776Sdarrenr# endif 1769172776Sdarrenr 1770255332Scy# if defined(INSTANCES) 1771255332Scyextern ipf_main_softc_t *ipf_find_softc __P((u_long)); 1772255332Scyextern int ipf_set_loopback __P((ipf_main_softc_t *, ipftuneable_t *, 1773255332Scy ipftuneval_t *)); 1774255332Scy# endif 1775255332Scy 177653642Sguido#endif /* #ifndef _KERNEL */ 177753642Sguido 1778161356Sguidoextern char *memstr __P((const char *, char *, size_t, size_t)); 1779145522Sdarrenrextern int count4bits __P((u_32_t)); 1780255332Scy#ifdef USE_INET6 1781255332Scyextern int count6bits __P((u_32_t *)); 1782255332Scy#endif 1783255332Scyextern int frrequest __P((ipf_main_softc_t *, int, ioctlcmd_t, caddr_t, 1784255332Scy int, int)); 1785145522Sdarrenrextern char *getifname __P((struct ifnet *)); 1786255332Scyextern int ipfattach __P((ipf_main_softc_t *)); 1787255332Scyextern int ipfdetach __P((ipf_main_softc_t *)); 178853642Sguidoextern u_short ipf_cksum __P((u_short *, int)); 1789255332Scyextern int copyinptr __P((ipf_main_softc_t *, void *, void *, size_t)); 1790255332Scyextern int copyoutptr __P((ipf_main_softc_t *, void *, void *, size_t)); 1791255332Scyextern int ipf_fastroute __P((mb_t *, mb_t **, fr_info_t *, frdest_t *)); 1792255332Scyextern int ipf_inject __P((fr_info_t *, mb_t *)); 1793255332Scyextern int ipf_inobj __P((ipf_main_softc_t *, void *, ipfobj_t *, 1794255332Scy void *, int)); 1795255332Scyextern int ipf_inobjsz __P((ipf_main_softc_t *, void *, void *, 1796255332Scy int , int)); 1797255332Scyextern int ipf_ioctlswitch __P((ipf_main_softc_t *, int, void *, 1798255332Scy ioctlcmd_t, int, int, void *)); 1799255332Scyextern int ipf_ipf_ioctl __P((ipf_main_softc_t *, caddr_t, ioctlcmd_t, 1800255332Scy int, int, void *)); 1801255332Scyextern int ipf_ipftune __P((ipf_main_softc_t *, ioctlcmd_t, void *)); 1802255332Scyextern int ipf_matcharray_load __P((ipf_main_softc_t *, caddr_t, 1803255332Scy ipfobj_t *, int **)); 1804255332Scyextern int ipf_matcharray_verify __P((int *, int)); 1805255332Scyextern int ipf_outobj __P((ipf_main_softc_t *, void *, void *, int)); 1806255332Scyextern int ipf_outobjk __P((ipf_main_softc_t *, ipfobj_t *, void *)); 1807255332Scyextern int ipf_outobjsz __P((ipf_main_softc_t *, void *, void *, 1808255332Scy int, int)); 1809255332Scyextern void *ipf_pullup __P((mb_t *, fr_info_t *, int)); 1810255332Scyextern int ipf_resolvedest __P((ipf_main_softc_t *, char *, 1811255332Scy struct frdest *, int)); 1812255332Scyextern int ipf_resolvefunc __P((ipf_main_softc_t *, void *)); 1813255332Scyextern void *ipf_resolvenic __P((ipf_main_softc_t *, char *, int)); 1814255332Scyextern int ipf_send_icmp_err __P((int, fr_info_t *, int)); 1815255332Scyextern int ipf_send_reset __P((fr_info_t *)); 1816255332Scyextern void ipf_apply_timeout __P((ipftq_t *, u_int)); 1817255332Scyextern ipftq_t *ipf_addtimeoutqueue __P((ipf_main_softc_t *, ipftq_t **, 1818255332Scy u_int)); 1819255332Scyextern void ipf_deletequeueentry __P((ipftqent_t *)); 1820255332Scyextern int ipf_deletetimeoutqueue __P((ipftq_t *)); 1821255332Scyextern void ipf_freetimeoutqueue __P((ipf_main_softc_t *, ipftq_t *)); 1822255332Scyextern void ipf_movequeue __P((u_long, ipftqent_t *, ipftq_t *, 1823255332Scy ipftq_t *)); 1824255332Scyextern void ipf_queueappend __P((u_long, ipftqent_t *, ipftq_t *, void *)); 1825255332Scyextern void ipf_queueback __P((u_long, ipftqent_t *)); 1826255332Scyextern int ipf_queueflush __P((ipf_main_softc_t *, ipftq_delete_fn_t, 1827255332Scy ipftq_t *, ipftq_t *, u_int *, int, int)); 1828255332Scyextern void ipf_queuefront __P((ipftqent_t *)); 1829255332Scyextern int ipf_settimeout_tcp __P((ipftuneable_t *, ipftuneval_t *, 1830255332Scy ipftq_t *)); 1831255332Scyextern int ipf_checkv4sum __P((fr_info_t *)); 1832255332Scyextern int ipf_checkl4sum __P((fr_info_t *)); 1833255332Scyextern int ipf_ifpfillv4addr __P((int, struct sockaddr_in *, 1834145522Sdarrenr struct sockaddr_in *, struct in_addr *, 1835145522Sdarrenr struct in_addr *)); 1836255332Scyextern int ipf_coalesce __P((fr_info_t *)); 1837145522Sdarrenr#ifdef USE_INET6 1838255332Scyextern int ipf_checkv6sum __P((fr_info_t *)); 1839255332Scyextern int ipf_ifpfillv6addr __P((int, struct sockaddr_in6 *, 1840255332Scy struct sockaddr_in6 *, i6addr_t *, 1841255332Scy i6addr_t *)); 1842145522Sdarrenr#endif 184360851Sdarrenr 1844255332Scyextern int ipf_tune_add __P((ipf_main_softc_t *, ipftuneable_t *)); 1845255332Scyextern int ipf_tune_add_array __P((ipf_main_softc_t *, ipftuneable_t *)); 1846255332Scyextern int ipf_tune_del __P((ipf_main_softc_t *, ipftuneable_t *)); 1847255332Scyextern int ipf_tune_del_array __P((ipf_main_softc_t *, ipftuneable_t *)); 1848255332Scyextern int ipf_tune_array_link __P((ipf_main_softc_t *, ipftuneable_t *)); 1849255332Scyextern int ipf_tune_array_unlink __P((ipf_main_softc_t *, 1850255332Scy ipftuneable_t *)); 1851255332Scyextern ipftuneable_t *ipf_tune_array_copy __P((void *, size_t, 1852255332Scy ipftuneable_t *)); 1853145522Sdarrenr 1854255332Scyextern int ipf_pr_pullup __P((fr_info_t *, int)); 1855145522Sdarrenr 1856255332Scyextern int ipf_flush __P((ipf_main_softc_t *, minor_t, int)); 1857255332Scyextern frgroup_t *ipf_group_add __P((ipf_main_softc_t *, char *, void *, 1858255332Scy u_32_t, minor_t, int)); 1859255332Scyextern void ipf_group_del __P((ipf_main_softc_t *, frgroup_t *, 1860255332Scy frentry_t *)); 1861255332Scyextern int ipf_derefrule __P((ipf_main_softc_t *, frentry_t **)); 1862255332Scyextern frgroup_t *ipf_findgroup __P((ipf_main_softc_t *, char *, minor_t, 1863255332Scy int, frgroup_t ***)); 186492685Sdarrenr 1865255332Scyextern int ipf_log_init __P((void)); 1866255332Scyextern int ipf_log_bytesused __P((ipf_main_softc_t *, int)); 1867255332Scyextern int ipf_log_canread __P((ipf_main_softc_t *, int)); 1868255332Scyextern int ipf_log_clear __P((ipf_main_softc_t *, minor_t)); 1869255332Scyextern u_long ipf_log_failures __P((ipf_main_softc_t *, int)); 1870255332Scyextern int ipf_log_read __P((ipf_main_softc_t *, minor_t, uio_t *)); 1871255332Scyextern int ipf_log_items __P((ipf_main_softc_t *, int, fr_info_t *, 1872255332Scy void **, size_t *, int *, int)); 1873255332Scyextern u_long ipf_log_logok __P((ipf_main_softc_t *, int)); 1874255332Scyextern void ipf_log_unload __P((ipf_main_softc_t *)); 1875255332Scyextern int ipf_log_pkt __P((fr_info_t *, u_int)); 1876255332Scy 1877255332Scyextern frentry_t *ipf_acctpkt __P((fr_info_t *, u_32_t *)); 1878255332Scyextern u_short fr_cksum __P((fr_info_t *, ip_t *, int, void *)); 1879255332Scyextern void ipf_deinitialise __P((ipf_main_softc_t *)); 1880255332Scyextern int ipf_deliverlocal __P((ipf_main_softc_t *, int, void *, 1881255332Scy i6addr_t *)); 1882255332Scyextern frentry_t *ipf_dstgrpmap __P((fr_info_t *, u_32_t *)); 1883255332Scyextern void ipf_fixskip __P((frentry_t **, frentry_t *, int)); 1884255332Scyextern void ipf_forgetifp __P((ipf_main_softc_t *, void *)); 1885255332Scyextern frentry_t *ipf_getrulen __P((ipf_main_softc_t *, int, char *, 1886255332Scy u_32_t)); 1887255332Scyextern int ipf_ifpaddr __P((ipf_main_softc_t *, int, int, void *, 1888255332Scy i6addr_t *, i6addr_t *)); 1889255332Scyextern void ipf_inet_mask_add __P((int, ipf_v4_masktab_t *)); 1890255332Scyextern void ipf_inet_mask_del __P((int, ipf_v4_masktab_t *)); 1891255332Scy#ifdef USE_INET6 1892255332Scyextern void ipf_inet6_mask_add __P((int, i6addr_t *, 1893255332Scy ipf_v6_masktab_t *)); 1894255332Scyextern void ipf_inet6_mask_del __P((int, i6addr_t *, 1895255332Scy ipf_v6_masktab_t *)); 1896180778Sdarrenr#endif 1897255332Scyextern int ipf_initialise __P((void)); 1898255332Scyextern int ipf_lock __P((caddr_t, int *)); 1899255332Scyextern int ipf_makefrip __P((int, ip_t *, fr_info_t *)); 1900255332Scyextern int ipf_matchtag __P((ipftag_t *, ipftag_t *)); 1901255332Scyextern int ipf_matchicmpqueryreply __P((int, icmpinfo_t *, 1902255332Scy struct icmp *, int)); 1903255332Scyextern u_32_t ipf_newisn __P((fr_info_t *)); 1904255332Scyextern u_short ipf_nextipid __P((fr_info_t *)); 1905255332Scyextern u_int ipf_pcksum __P((fr_info_t *, int, u_int)); 1906255332Scyextern void ipf_rule_expire __P((ipf_main_softc_t *)); 1907255332Scyextern int ipf_scanlist __P((fr_info_t *, u_32_t)); 1908255332Scyextern frentry_t *ipf_srcgrpmap __P((fr_info_t *, u_32_t *)); 1909255332Scyextern int ipf_tcpudpchk __P((fr_ip_t *, frtuc_t *)); 1910255332Scyextern int ipf_verifysrc __P((fr_info_t *fin)); 1911255332Scyextern int ipf_zerostats __P((ipf_main_softc_t *, char *)); 1912255332Scyextern int ipf_getnextrule __P((ipf_main_softc_t *, ipftoken_t *, 1913255332Scy void *)); 1914255332Scyextern int ipf_sync __P((ipf_main_softc_t *, void *)); 1915255332Scyextern int ipf_token_deref __P((ipf_main_softc_t *, ipftoken_t *)); 1916255332Scyextern void ipf_token_expire __P((ipf_main_softc_t *)); 1917255332Scyextern ipftoken_t *ipf_token_find __P((ipf_main_softc_t *, int, int, 1918255332Scy void *)); 1919255332Scyextern int ipf_token_del __P((ipf_main_softc_t *, int, int, 1920255332Scy void *)); 1921255332Scyextern void ipf_token_mark_complete __P((ipftoken_t *)); 1922255332Scyextern int ipf_genericiter __P((ipf_main_softc_t *, void *, 1923255332Scy int, void *)); 1924255332Scy#ifdef IPFILTER_LOOKUP 1925255332Scyextern void *ipf_resolvelookup __P((int, u_int, u_int, 1926255332Scy lookupfunc_t *)); 1927180778Sdarrenr#endif 1928255332Scyextern u_32_t ipf_random __P((void)); 192960851Sdarrenr 1930255332Scyextern int ipf_main_load __P((void)); 1931255332Scyextern void *ipf_main_soft_create __P((void *)); 1932255332Scyextern void ipf_main_soft_destroy __P((ipf_main_softc_t *)); 1933255332Scyextern int ipf_main_soft_init __P((ipf_main_softc_t *)); 1934255332Scyextern int ipf_main_soft_fini __P((ipf_main_softc_t *)); 1935255332Scyextern int ipf_main_unload __P((void)); 1936255332Scyextern int ipf_load_all __P((void)); 1937255332Scyextern int ipf_unload_all __P((void)); 1938255332Scyextern void ipf_destroy_all __P((ipf_main_softc_t *)); 1939255332Scyextern ipf_main_softc_t *ipf_create_all __P((void *)); 1940255332Scyextern int ipf_init_all __P((ipf_main_softc_t *)); 1941255332Scyextern int ipf_fini_all __P((ipf_main_softc_t *)); 1942255332Scyextern void ipf_log_soft_destroy __P((ipf_main_softc_t *, void *)); 1943255332Scyextern void *ipf_log_soft_create __P((ipf_main_softc_t *)); 1944255332Scyextern int ipf_log_soft_init __P((ipf_main_softc_t *, void *)); 1945255332Scyextern int ipf_log_soft_fini __P((ipf_main_softc_t *, void *)); 1946255332Scyextern int ipf_log_main_load __P((void)); 1947255332Scyextern int ipf_log_main_unload __P((void)); 1948255332Scy 1949255332Scy 195053642Sguidoextern char ipfilter_version[]; 195160851Sdarrenr#ifdef USE_INET6 195260851Sdarrenrextern int icmptoicmp6types[ICMP_MAXTYPE+1]; 195360851Sdarrenrextern int icmptoicmp6unreach[ICMP_MAX_UNREACH]; 1954145522Sdarrenrextern int icmpreplytype6[ICMP6_MAXTYPE + 1]; 195553642Sguido#endif 1956255332Scy#ifdef IPFILTER_COMPAT 1957255332Scyextern int ipf_in_compat __P((ipf_main_softc_t *, ipfobj_t *, void *,int)); 1958255332Scyextern int ipf_out_compat __P((ipf_main_softc_t *, ipfobj_t *, void *)); 1959255332Scy#endif 1960145522Sdarrenrextern int icmpreplytype4[ICMP_MAXTYPE + 1]; 196153642Sguido 1962255332Scyextern int ipf_ht_node_add __P((ipf_main_softc_t *, host_track_t *, 1963255332Scy int, i6addr_t *)); 1964255332Scyextern int ipf_ht_node_del __P((host_track_t *, int, i6addr_t *)); 1965255332Scyextern void ipf_rb_ht_flush __P((host_track_t *)); 1966255332Scyextern void ipf_rb_ht_freenode __P((host_node_t *, void *)); 1967255332Scyextern void ipf_rb_ht_init __P((host_track_t *)); 1968255332Scy 196953642Sguido#endif /* __IP_FIL_H__ */ 1970