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 * $FreeBSD$ 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 14145562Sdarrenr#include "netinet/ip_compat.h" 15255332Scy#include "netinet/ipf_rb.h" 16255332Scy#if NETBSD_GE_REV(104040000) 17255332Scy# include <sys/callout.h> 18255332Scy#endif 19255332Scy#if defined(BSD) && defined(_KERNEL) 20255332Scy# if NETBSD_LT_REV(399000000) || defined(__osf__) || FREEBSD_LT_REV(500043) 21255332Scy# include <sys/select.h> 22255332Scy# else 23255332Scy# include <sys/selinfo.h> 24255332Scy# endif 25255332Scy#endif 26145562Sdarrenr 27255332Scy#if !defined(linux) || !defined(_KERNEL) 28255332Scy# include <netinet/in.h> 29255332Scy#endif 30255332Scy 3153642Sguido#ifndef SOLARIS 3253642Sguido# define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4))) 3353642Sguido#endif 3453642Sguido 3553642Sguido#ifndef __P 3653642Sguido# ifdef __STDC__ 3753642Sguido# define __P(x) x 3853642Sguido# else 3953642Sguido# define __P(x) () 4053642Sguido# endif 4153642Sguido#endif 4253642Sguido 43153876Sguido#if defined(__STDC__) || defined(__GNUC__) || defined(_AIX51) 44145522Sdarrenr# define SIOCADAFR _IOW('r', 60, struct ipfobj) 45145522Sdarrenr# define SIOCRMAFR _IOW('r', 61, struct ipfobj) 4653642Sguido# define SIOCSETFF _IOW('r', 62, u_int) 4753642Sguido# define SIOCGETFF _IOR('r', 63, u_int) 48145522Sdarrenr# define SIOCGETFS _IOWR('r', 64, struct ipfobj) 4953642Sguido# define SIOCIPFFL _IOWR('r', 65, int) 5053642Sguido# define SIOCIPFFB _IOR('r', 66, int) 51145522Sdarrenr# define SIOCADIFR _IOW('r', 67, struct ipfobj) 52145522Sdarrenr# define SIOCRMIFR _IOW('r', 68, struct ipfobj) 5353642Sguido# define SIOCSWAPA _IOR('r', 69, u_int) 54145522Sdarrenr# define SIOCINAFR _IOW('r', 70, struct ipfobj) 55145522Sdarrenr# define SIOCINIFR _IOW('r', 71, struct ipfobj) 5653642Sguido# define SIOCFRENB _IOW('r', 72, u_int) 5753642Sguido# define SIOCFRSYN _IOW('r', 73, u_int) 58145522Sdarrenr# define SIOCFRZST _IOWR('r', 74, struct ipfobj) 59145522Sdarrenr# define SIOCZRLST _IOWR('r', 75, struct ipfobj) 60145522Sdarrenr# define SIOCAUTHW _IOWR('r', 76, struct ipfobj) 61145522Sdarrenr# define SIOCAUTHR _IOWR('r', 77, struct ipfobj) 62170268Sdarrenr# define SIOCSTAT1 _IOWR('r', 78, struct ipfobj) 6360851Sdarrenr# define SIOCSTLCK _IOWR('r', 79, u_int) 64145522Sdarrenr# define SIOCSTPUT _IOWR('r', 80, struct ipfobj) 65145522Sdarrenr# define SIOCSTGET _IOWR('r', 81, struct ipfobj) 66145522Sdarrenr# define SIOCSTGSZ _IOWR('r', 82, struct ipfobj) 67170268Sdarrenr# define SIOCSTAT2 _IOWR('r', 83, struct ipfobj) 68145522Sdarrenr# define SIOCSETLG _IOWR('r', 84, int) 69145522Sdarrenr# define SIOCGETLG _IOWR('r', 85, int) 70145522Sdarrenr# define SIOCFUNCL _IOWR('r', 86, struct ipfunc_resolve) 71145522Sdarrenr# define SIOCIPFGETNEXT _IOWR('r', 87, struct ipfobj) 72145522Sdarrenr# define SIOCIPFGET _IOWR('r', 88, struct ipfobj) 73145522Sdarrenr# define SIOCIPFSET _IOWR('r', 89, struct ipfobj) 74145522Sdarrenr# define SIOCIPFL6 _IOWR('r', 90, int) 75170268Sdarrenr# define SIOCIPFITER _IOWR('r', 91, struct ipfobj) 76170268Sdarrenr# define SIOCGENITER _IOWR('r', 92, struct ipfobj) 77170268Sdarrenr# define SIOCGTABL _IOWR('r', 93, struct ipfobj) 78170268Sdarrenr# define SIOCIPFDELTOK _IOWR('r', 94, int) 79170268Sdarrenr# define SIOCLOOKUPITER _IOWR('r', 95, struct ipfobj) 80170268Sdarrenr# define SIOCGTQTAB _IOWR('r', 96, struct ipfobj) 81255332Scy# define SIOCMATCHFLUSH _IOWR('r', 97, struct ipfobj) 82255332Scy# define SIOCIPFINTERROR _IOR('r', 98, int) 8353642Sguido#else 84145522Sdarrenr# define SIOCADAFR _IOW(r, 60, struct ipfobj) 85145522Sdarrenr# define SIOCRMAFR _IOW(r, 61, struct ipfobj) 8653642Sguido# define SIOCSETFF _IOW(r, 62, u_int) 8753642Sguido# define SIOCGETFF _IOR(r, 63, u_int) 88145522Sdarrenr# define SIOCGETFS _IOWR(r, 64, struct ipfobj) 8953642Sguido# define SIOCIPFFL _IOWR(r, 65, int) 9053642Sguido# define SIOCIPFFB _IOR(r, 66, int) 91145522Sdarrenr# define SIOCADIFR _IOW(r, 67, struct ipfobj) 92145522Sdarrenr# define SIOCRMIFR _IOW(r, 68, struct ipfobj) 9353642Sguido# define SIOCSWAPA _IOR(r, 69, u_int) 94145522Sdarrenr# define SIOCINAFR _IOW(r, 70, struct ipfobj) 95145522Sdarrenr# define SIOCINIFR _IOW(r, 71, struct ipfobj) 9653642Sguido# define SIOCFRENB _IOW(r, 72, u_int) 9753642Sguido# define SIOCFRSYN _IOW(r, 73, u_int) 98145522Sdarrenr# define SIOCFRZST _IOWR(r, 74, struct ipfobj) 99145522Sdarrenr# define SIOCZRLST _IOWR(r, 75, struct ipfobj) 100145522Sdarrenr# define SIOCAUTHW _IOWR(r, 76, struct ipfobj) 101145522Sdarrenr# define SIOCAUTHR _IOWR(r, 77, struct ipfobj) 102170268Sdarrenr# define SIOCSTAT1 _IOWR(r, 78, struct ipfobj) 10360851Sdarrenr# define SIOCSTLCK _IOWR(r, 79, u_int) 104145522Sdarrenr# define SIOCSTPUT _IOWR(r, 80, struct ipfobj) 105145522Sdarrenr# define SIOCSTGET _IOWR(r, 81, struct ipfobj) 106145522Sdarrenr# define SIOCSTGSZ _IOWR(r, 82, struct ipfobj) 107170268Sdarrenr# define SIOCSTAT2 _IOWR(r, 83, struct ipfobj) 108145522Sdarrenr# define SIOCSETLG _IOWR(r, 84, int) 109145522Sdarrenr# define SIOCGETLG _IOWR(r, 85, int) 110145522Sdarrenr# define SIOCFUNCL _IOWR(r, 86, struct ipfunc_resolve) 111145522Sdarrenr# define SIOCIPFGETNEXT _IOWR(r, 87, struct ipfobj) 112145522Sdarrenr# define SIOCIPFGET _IOWR(r, 88, struct ipfobj) 113145522Sdarrenr# define SIOCIPFSET _IOWR(r, 89, struct ipfobj) 114145522Sdarrenr# define SIOCIPFL6 _IOWR(r, 90, int) 115170268Sdarrenr# define SIOCIPFITER _IOWR(r, 91, struct ipfobj) 116170268Sdarrenr# define SIOCGENITER _IOWR(r, 92, struct ipfobj) 117170268Sdarrenr# define SIOCGTABL _IOWR(r, 93, struct ipfobj) 118170268Sdarrenr# define SIOCIPFDELTOK _IOWR(r, 94, int) 119170268Sdarrenr# define SIOCLOOKUPITER _IOWR(r, 95, struct ipfobj) 120170268Sdarrenr# define SIOCGTQTAB _IOWR(r, 96, struct ipfobj) 121255332Scy# define SIOCMATCHFLUSH _IOWR(r, 97, struct ipfobj) 122255332Scy# define SIOCIPFINTERROR _IOR(r, 98, int) 12353642Sguido#endif 12453642Sguido#define SIOCADDFR SIOCADAFR 12553642Sguido#define SIOCDELFR SIOCRMAFR 12653642Sguido#define SIOCINSFR SIOCINAFR 127170268Sdarrenr#define SIOCATHST SIOCSTAT1 128170268Sdarrenr#define SIOCGFRST SIOCSTAT2 12953642Sguido 13060851Sdarrenr 131145522Sdarrenrstruct ipscan; 132145522Sdarrenrstruct ifnet; 133255332Scystruct ipf_main_softc_s; 134145522Sdarrenr 135255332Scytypedef int (* lookupfunc_t) __P((struct ipf_main_softc_s *, void *, 136255332Scy int, void *, u_int)); 137145522Sdarrenr 138145522Sdarrenr/* 139145522Sdarrenr * i6addr is used as a container for both IPv4 and IPv6 addresses, as well 140145522Sdarrenr * as other types of objects, depending on its qualifier. 141145522Sdarrenr */ 142145522Sdarrenr#ifdef USE_INET6 143145522Sdarrenrtypedef union i6addr { 144145522Sdarrenr u_32_t i6[4]; 145145522Sdarrenr struct in_addr in4; 146145522Sdarrenr struct in6_addr in6; 147145522Sdarrenr void *vptr[2]; 148145522Sdarrenr lookupfunc_t lptr[2]; 149170268Sdarrenr struct { 150170268Sdarrenr u_short type; 151170268Sdarrenr u_short subtype; 152255332Scy int name; 153170268Sdarrenr } i6un; 154145522Sdarrenr} i6addr_t; 155145522Sdarrenr#else 156145522Sdarrenrtypedef union i6addr { 157145522Sdarrenr u_32_t i6[4]; 158145522Sdarrenr struct in_addr in4; 159145522Sdarrenr void *vptr[2]; 160145522Sdarrenr lookupfunc_t lptr[2]; 161170268Sdarrenr struct { 162170268Sdarrenr u_short type; 163170268Sdarrenr u_short subtype; 164255332Scy int name; 165170268Sdarrenr } i6un; 166145522Sdarrenr} i6addr_t; 167145522Sdarrenr#endif 168145522Sdarrenr 169145522Sdarrenr#define in4_addr in4.s_addr 170170268Sdarrenr#define iplookupnum i6[1] 171255332Scy#define iplookupname i6un.name 172170268Sdarrenr#define iplookuptype i6un.type 173170268Sdarrenr#define iplookupsubtype i6un.subtype 174145522Sdarrenr/* 175145522Sdarrenr * NOTE: These DO overlap the above on 64bit systems and this IS recognised. 176145522Sdarrenr */ 177145522Sdarrenr#define iplookupptr vptr[0] 178145522Sdarrenr#define iplookupfunc lptr[1] 179145522Sdarrenr 180172776Sdarrenr#define I60(x) (((u_32_t *)(x))[0]) 181172776Sdarrenr#define I61(x) (((u_32_t *)(x))[1]) 182172776Sdarrenr#define I62(x) (((u_32_t *)(x))[2]) 183172776Sdarrenr#define I63(x) (((u_32_t *)(x))[3]) 184172776Sdarrenr#define HI60(x) ntohl(((u_32_t *)(x))[0]) 185172776Sdarrenr#define HI61(x) ntohl(((u_32_t *)(x))[1]) 186172776Sdarrenr#define HI62(x) ntohl(((u_32_t *)(x))[2]) 187172776Sdarrenr#define HI63(x) ntohl(((u_32_t *)(x))[3]) 188145522Sdarrenr 189145522Sdarrenr#define IP6_EQ(a,b) ((I63(a) == I63(b)) && (I62(a) == I62(b)) && \ 190145522Sdarrenr (I61(a) == I61(b)) && (I60(a) == I60(b))) 191145522Sdarrenr#define IP6_NEQ(a,b) ((I63(a) != I63(b)) || (I62(a) != I62(b)) || \ 192145522Sdarrenr (I61(a) != I61(b)) || (I60(a) != I60(b))) 193145522Sdarrenr#define IP6_ISZERO(a) ((I60(a) | I61(a) | I62(a) | I63(a)) == 0) 194145522Sdarrenr#define IP6_NOTZERO(a) ((I60(a) | I61(a) | I62(a) | I63(a)) != 0) 195255332Scy#define IP6_ISONES(a) ((I63(a) == 0xffffffff) && (I62(a) == 0xffffffff) && \ 196255332Scy (I61(a) == 0xffffffff) && (I60(a) == 0xffffffff)) 197255332Scy#define IP6_GT(a,b) (ntohl(HI60(a)) > ntohl(HI60(b)) || \ 198255332Scy (HI60(a) == HI60(b) && \ 199255332Scy (ntohl(HI61(a)) > ntohl(HI61(b)) || \ 200255332Scy (HI61(a) == HI61(b) && \ 201255332Scy (ntohl(HI62(a)) > ntohl(HI62(b)) || \ 202255332Scy (HI62(a) == HI62(b) && \ 203255332Scy ntohl(HI63(a)) > ntohl(HI63(b)))))))) 204255332Scy#define IP6_LT(a,b) (ntohl(HI60(a)) < ntohl(HI60(b)) || \ 205255332Scy (HI60(a) == HI60(b) && \ 206255332Scy (ntohl(HI61(a)) < ntohl(HI61(b)) || \ 207255332Scy (HI61(a) == HI61(b) && \ 208255332Scy (ntohl(HI62(a)) < ntohl(HI62(b)) || \ 209255332Scy (HI62(a) == HI62(b) && \ 210255332Scy ntohl(HI63(a)) < ntohl(HI63(b)))))))) 211145522Sdarrenr#define NLADD(n,x) htonl(ntohl(n) + (x)) 212145522Sdarrenr#define IP6_INC(a) \ 213255332Scy do { u_32_t *_i6 = (u_32_t *)(a); \ 214172776Sdarrenr _i6[3] = NLADD(_i6[3], 1); \ 215172776Sdarrenr if (_i6[3] == 0) { \ 216172776Sdarrenr _i6[2] = NLADD(_i6[2], 1); \ 217172776Sdarrenr if (_i6[2] == 0) { \ 218172776Sdarrenr _i6[1] = NLADD(_i6[1], 1); \ 219172776Sdarrenr if (_i6[1] == 0) { \ 220172776Sdarrenr _i6[0] = NLADD(_i6[0], 1); \ 221145522Sdarrenr } \ 222145522Sdarrenr } \ 223145522Sdarrenr } \ 224255332Scy } while (0) 225145522Sdarrenr#define IP6_ADD(a,x,d) \ 226255332Scy do { i6addr_t *_s = (i6addr_t *)(a); \ 227145522Sdarrenr i6addr_t *_d = (i6addr_t *)(d); \ 228145522Sdarrenr _d->i6[0] = NLADD(_s->i6[0], x); \ 229145522Sdarrenr if (ntohl(_d->i6[0]) < ntohl(_s->i6[0])) { \ 230145522Sdarrenr _d->i6[1] = NLADD(_d->i6[1], 1); \ 231145522Sdarrenr if (ntohl(_d->i6[1]) < ntohl(_s->i6[1])) { \ 232145522Sdarrenr _d->i6[2] = NLADD(_d->i6[2], 1); \ 233145522Sdarrenr if (ntohl(_d->i6[2]) < ntohl(_s->i6[2])) { \ 234145522Sdarrenr _d->i6[3] = NLADD(_d->i6[3], 1); \ 235145522Sdarrenr } \ 236145522Sdarrenr } \ 237145522Sdarrenr } \ 238255332Scy } while (0) 239255332Scy#define IP6_AND(a,b,d) do { i6addr_t *_s1 = (i6addr_t *)(a); \ 240255332Scy i6addr_t *_s2 = (i6addr_t *)(b); \ 241145522Sdarrenr i6addr_t *_d = (i6addr_t *)(d); \ 242145522Sdarrenr _d->i6[0] = _s1->i6[0] & _s2->i6[0]; \ 243145522Sdarrenr _d->i6[1] = _s1->i6[1] & _s2->i6[1]; \ 244145522Sdarrenr _d->i6[2] = _s1->i6[2] & _s2->i6[2]; \ 245145522Sdarrenr _d->i6[3] = _s1->i6[3] & _s2->i6[3]; \ 246255332Scy } while (0) 247255332Scy#define IP6_ANDASSIGN(a,m) \ 248255332Scy do { i6addr_t *_d = (i6addr_t *)(a); \ 249255332Scy i6addr_t *_m = (i6addr_t *)(m); \ 250255332Scy _d->i6[0] &= _m->i6[0]; \ 251255332Scy _d->i6[1] &= _m->i6[1]; \ 252255332Scy _d->i6[2] &= _m->i6[2]; \ 253255332Scy _d->i6[3] &= _m->i6[3]; \ 254255332Scy } while (0) 255255332Scy#define IP6_MASKEQ(a,m,b) \ 256255332Scy (((I60(a) & I60(m)) == I60(b)) && \ 257255332Scy ((I61(a) & I61(m)) == I61(b)) && \ 258255332Scy ((I62(a) & I62(m)) == I62(b)) && \ 259255332Scy ((I63(a) & I63(m)) == I63(b))) 260255332Scy#define IP6_MASKNEQ(a,m,b) \ 261255332Scy (((I60(a) & I60(m)) != I60(b)) || \ 262255332Scy ((I61(a) & I61(m)) != I61(b)) || \ 263255332Scy ((I62(a) & I62(m)) != I62(b)) || \ 264255332Scy ((I63(a) & I63(m)) != I63(b))) 265145522Sdarrenr#define IP6_MERGE(a,b,c) \ 266255332Scy do { i6addr_t *_d, *_s1, *_s2; \ 267145522Sdarrenr _d = (i6addr_t *)(a); \ 268145522Sdarrenr _s1 = (i6addr_t *)(b); \ 269145522Sdarrenr _s2 = (i6addr_t *)(c); \ 270145522Sdarrenr _d->i6[0] |= _s1->i6[0] & ~_s2->i6[0]; \ 271145522Sdarrenr _d->i6[1] |= _s1->i6[1] & ~_s2->i6[1]; \ 272145522Sdarrenr _d->i6[2] |= _s1->i6[2] & ~_s2->i6[2]; \ 273255332Scy _d->i6[3] |= _s1->i6[3] & ~_s2->i6[3]; \ 274255332Scy } while (0) 275255332Scy#define IP6_MASK(a,b,c) \ 276255332Scy do { i6addr_t *_d, *_s1, *_s2; \ 277255332Scy _d = (i6addr_t *)(a); \ 278255332Scy _s1 = (i6addr_t *)(b); \ 279255332Scy _s2 = (i6addr_t *)(c); \ 280255332Scy _d->i6[0] = _s1->i6[0] & ~_s2->i6[0]; \ 281255332Scy _d->i6[1] = _s1->i6[1] & ~_s2->i6[1]; \ 282255332Scy _d->i6[2] = _s1->i6[2] & ~_s2->i6[2]; \ 283255332Scy _d->i6[3] = _s1->i6[3] & ~_s2->i6[3]; \ 284255332Scy } while (0) 285255332Scy#define IP6_SETONES(a) \ 286255332Scy do { i6addr_t *_d = (i6addr_t *)(a); \ 287255332Scy _d->i6[0] = 0xffffffff; \ 288255332Scy _d->i6[1] = 0xffffffff; \ 289255332Scy _d->i6[2] = 0xffffffff; \ 290255332Scy _d->i6[3] = 0xffffffff; \ 291255332Scy } while (0) 292145522Sdarrenr 293255332Scytypedef union ipso_u { 294255332Scy u_short ipso_ripso[2]; 295255332Scy u_32_t ipso_doi; 296255332Scy} ipso_t; 297145522Sdarrenr 29853642Sguidotypedef struct fr_ip { 29960851Sdarrenr u_32_t fi_v:4; /* IP version */ 300145522Sdarrenr u_32_t fi_xx:4; /* spare */ 30160851Sdarrenr u_32_t fi_tos:8; /* IP packet TOS */ 30260851Sdarrenr u_32_t fi_ttl:8; /* IP packet TTL */ 30360851Sdarrenr u_32_t fi_p:8; /* IP packet protocol */ 30453642Sguido u_32_t fi_optmsk; /* bitmask composed from IP options */ 305145522Sdarrenr i6addr_t fi_src; /* source address from packet */ 306145522Sdarrenr i6addr_t fi_dst; /* destination address from packet */ 307255332Scy ipso_t fi_ipso; /* IP security options */ 308145522Sdarrenr u_32_t fi_flx; /* packet flags */ 309145522Sdarrenr u_32_t fi_tcpmsk; /* TCP options set/reset */ 310255332Scy u_32_t fi_ports[2]; /* TCP ports */ 311255332Scy u_char fi_tcpf; /* TCP flags */ 312255332Scy u_char fi_sensitivity; 313255332Scy u_char fi_xxx[2]; /* pad */ 31453642Sguido} fr_ip_t; 31553642Sguido 316145522Sdarrenr/* 317145522Sdarrenr * For use in fi_flx 318145522Sdarrenr */ 319145522Sdarrenr#define FI_TCPUDP 0x0001 /* TCP/UCP implied comparison*/ 320145522Sdarrenr#define FI_OPTIONS 0x0002 321145522Sdarrenr#define FI_FRAG 0x0004 322145522Sdarrenr#define FI_SHORT 0x0008 323145522Sdarrenr#define FI_NATED 0x0010 324145522Sdarrenr#define FI_MULTICAST 0x0020 325145522Sdarrenr#define FI_BROADCAST 0x0040 326145522Sdarrenr#define FI_MBCAST 0x0080 327145522Sdarrenr#define FI_STATE 0x0100 328145522Sdarrenr#define FI_BADNAT 0x0200 329145522Sdarrenr#define FI_BAD 0x0400 330145522Sdarrenr#define FI_OOW 0x0800 /* Out of state window, else match */ 331145522Sdarrenr#define FI_ICMPERR 0x1000 332145522Sdarrenr#define FI_FRAGBODY 0x2000 333145522Sdarrenr#define FI_BADSRC 0x4000 334145522Sdarrenr#define FI_LOWTTL 0x8000 335255332Scy#define FI_CMP 0x5cfe3 /* Not FI_FRAG,FI_NATED,FI_FRAGTAIL */ 336145522Sdarrenr#define FI_ICMPCMP 0x0003 /* Flags we can check for ICMP error packets */ 337255332Scy#define FI_WITH 0x5effe /* Not FI_TCPUDP */ 338145522Sdarrenr#define FI_V6EXTHDR 0x10000 339145522Sdarrenr#define FI_COALESCE 0x20000 340172776Sdarrenr#define FI_NEWNAT 0x40000 341255332Scy#define FI_ICMPQUERY 0x80000 342255332Scy#define FI_ENCAP 0x100000 /* encap/decap with NAT */ 343255332Scy#define FI_AH 0x200000 /* AH header present */ 344255332Scy#define FI_DOCKSUM 0x10000000 /* Proxy wants L4 recalculation */ 345145522Sdarrenr#define FI_NOCKSUM 0x20000000 /* don't do a L4 checksum validation */ 346255332Scy#define FI_NOWILD 0x40000000 /* Do not do wildcard searches */ 347145522Sdarrenr#define FI_IGNORE 0x80000000 34853642Sguido 349255332Scy#define fi_secmsk fi_ipso.ipso_ripso[0] 350255332Scy#define fi_auth fi_ipso.ipso_ripso[1] 351255332Scy#define fi_doi fi_ipso.ipso_doi 35260851Sdarrenr#define fi_saddr fi_src.in4.s_addr 35360851Sdarrenr#define fi_daddr fi_dst.in4.s_addr 354145522Sdarrenr#define fi_srcnum fi_src.iplookupnum 355145522Sdarrenr#define fi_dstnum fi_dst.iplookupnum 356170268Sdarrenr#define fi_srcname fi_src.iplookupname 357170268Sdarrenr#define fi_dstname fi_dst.iplookupname 358145522Sdarrenr#define fi_srctype fi_src.iplookuptype 359145522Sdarrenr#define fi_dsttype fi_dst.iplookuptype 360170268Sdarrenr#define fi_srcsubtype fi_src.iplookupsubtype 361170268Sdarrenr#define fi_dstsubtype fi_dst.iplookupsubtype 362145522Sdarrenr#define fi_srcptr fi_src.iplookupptr 363145522Sdarrenr#define fi_dstptr fi_dst.iplookupptr 364145522Sdarrenr#define fi_srcfunc fi_src.iplookupfunc 365145522Sdarrenr#define fi_dstfunc fi_dst.iplookupfunc 36660851Sdarrenr 36760851Sdarrenr 36853642Sguido/* 36953642Sguido * These are both used by the state and NAT code to indicate that one port or 37053642Sguido * the other should be treated as a wildcard. 371145522Sdarrenr * NOTE: When updating, check bit masks in ip_state.h and update there too. 37253642Sguido */ 373145522Sdarrenr#define SI_W_SPORT 0x00000100 374145522Sdarrenr#define SI_W_DPORT 0x00000200 375145522Sdarrenr#define SI_WILDP (SI_W_SPORT|SI_W_DPORT) 376145522Sdarrenr#define SI_W_SADDR 0x00000400 377145522Sdarrenr#define SI_W_DADDR 0x00000800 378145522Sdarrenr#define SI_WILDA (SI_W_SADDR|SI_W_DADDR) 379145522Sdarrenr#define SI_NEWFR 0x00001000 380145522Sdarrenr#define SI_CLONE 0x00002000 381145522Sdarrenr#define SI_CLONED 0x00004000 382255332Scy#define SI_NEWCLONE 0x00008000 38353642Sguido 384255332Scytypedef struct { 385255332Scy u_short fda_ports[2]; 386255332Scy u_char fda_tcpf; /* TCP header flags (SYN, ACK, etc) */ 387255332Scy} frdat_t; 388145522Sdarrenr 389255332Scytypedef enum fr_breasons_e { 390255332Scy FRB_BLOCKED = 0, 391255332Scy FRB_LOGFAIL = 1, 392255332Scy FRB_PPSRATE = 2, 393255332Scy FRB_JUMBO = 3, 394255332Scy FRB_MAKEFRIP = 4, 395255332Scy FRB_STATEADD = 5, 396255332Scy FRB_UPDATEIPID = 6, 397255332Scy FRB_LOGFAIL2 = 7, 398255332Scy FRB_DECAPFRIP = 8, 399255332Scy FRB_AUTHNEW = 9, 400255332Scy FRB_AUTHCAPTURE = 10, 401255332Scy FRB_COALESCE = 11, 402255332Scy FRB_PULLUP = 12, 403255332Scy FRB_AUTHFEEDBACK = 13, 404255332Scy FRB_BADFRAG = 14, 405255332Scy FRB_NATV4 = 15, 406255332Scy FRB_NATV6 = 16, 407255332Scy} fr_breason_t; 408255332Scy 409255332Scy#define FRB_MAX_VALUE 16 410255332Scy 411255332Scytypedef enum ipf_cksum_e { 412255332Scy FI_CK_BAD = -1, 413255332Scy FI_CK_NEEDED = 0, 414255332Scy FI_CK_SUMOK = 1, 415255332Scy FI_CK_L4PART = 2, 416255332Scy FI_CK_L4FULL = 4 417255332Scy} ipf_cksum_t; 418255332Scy 41953642Sguidotypedef struct fr_info { 420255332Scy void *fin_main_soft; 42153642Sguido void *fin_ifp; /* interface packet is `on' */ 422255332Scy struct frentry *fin_fr; /* last matching rule */ 423145522Sdarrenr int fin_out; /* in or out ? 1 == out, 0 == in */ 424255332Scy fr_ip_t fin_fi; /* IP Packet summary */ 425255332Scy frdat_t fin_dat; /* TCP/UDP ports, ICMP code/type */ 426255332Scy int fin_dlen; /* length of data portion of packet */ 427255332Scy int fin_plen; 428255332Scy u_32_t fin_rule; /* rule # last matched */ 42995418Sdarrenr u_short fin_hlen; /* length of IP header in bytes */ 430145522Sdarrenr char fin_group[FR_GROUPLEN]; /* group number, -1 for none */ 431145522Sdarrenr void *fin_dp; /* start of data past IP header */ 432255332Scy /* 433255332Scy * Fields after fin_dp aren't used for compression of log records. 434255332Scy * fin_fi contains the IP version (fin_family) 435255332Scy * fin_rule isn't included because adding a new rule can change it but 436255332Scy * not change fin_fr. fin_rule is the rule number reported. 437255332Scy * It isn't necessary to include fin_crc because that is checked 438255332Scy * for explicitly, before calling bcmp. 439255332Scy */ 440255332Scy u_32_t fin_crc; /* Simple calculation for logging */ 441255332Scy int fin_family; /* AF_INET, etc. */ 442255332Scy int fin_icode; /* ICMP error to return */ 443255332Scy int fin_mtu; /* MTU input for ICMP need-frag */ 444255332Scy int fin_rev; /* state only: 1 = reverse */ 445145522Sdarrenr int fin_ipoff; /* # bytes from buffer start to hdr */ 446255332Scy u_32_t fin_id; /* IP packet id field */ 447255332Scy u_short fin_l4hlen; /* length of L4 header, if known */ 44892685Sdarrenr u_short fin_off; 449145522Sdarrenr int fin_depth; /* Group nesting depth */ 450145522Sdarrenr int fin_error; /* Error code to return */ 451255332Scy ipf_cksum_t fin_cksum; /* -1 = bad, 1 = good, 0 = not done */ 452255332Scy fr_breason_t fin_reason; /* why auto blocked */ 453255332Scy u_int fin_pktnum; 454145522Sdarrenr void *fin_nattag; 455255332Scy struct frdest *fin_dif; 456255332Scy struct frdest *fin_tif; 457255332Scy union { 458255332Scy ip_t *fip_ip; 459255332Scy#ifdef USE_INET6 460255332Scy ip6_t *fip_ip6; 461255332Scy#endif 462255332Scy } fin_ipu; 463130886Sdarrenr mb_t **fin_mp; /* pointer to pointer to mbuf */ 464145522Sdarrenr mb_t *fin_m; /* pointer to mbuf */ 465145522Sdarrenr#ifdef MENTAT 466145522Sdarrenr mb_t *fin_qfm; /* pointer to mblk where pkt starts */ 467145522Sdarrenr void *fin_qpi; 468161356Sguido char fin_ifname[LIFNAMSIZ]; 46953642Sguido#endif 470145522Sdarrenr#ifdef __sgi 471145522Sdarrenr void *fin_hbuf; 472145522Sdarrenr#endif 473255332Scy void *fin_fraghdr; /* pointer to start of ipv6 frag hdr */ 47453642Sguido} fr_info_t; 47553642Sguido 476255332Scy#define fin_ip fin_ipu.fip_ip 477255332Scy#define fin_ip6 fin_ipu.fip_ip6 47880482Sdarrenr#define fin_v fin_fi.fi_v 47992685Sdarrenr#define fin_p fin_fi.fi_p 480145522Sdarrenr#define fin_flx fin_fi.fi_flx 481145522Sdarrenr#define fin_optmsk fin_fi.fi_optmsk 482145522Sdarrenr#define fin_secmsk fin_fi.fi_secmsk 483255332Scy#define fin_doi fin_fi.fi_doi 484145522Sdarrenr#define fin_auth fin_fi.fi_auth 485145522Sdarrenr#define fin_src fin_fi.fi_src.in4 48680482Sdarrenr#define fin_saddr fin_fi.fi_saddr 487145522Sdarrenr#define fin_dst fin_fi.fi_dst.in4 48880482Sdarrenr#define fin_daddr fin_fi.fi_daddr 489255332Scy#define fin_data fin_fi.fi_ports 490255332Scy#define fin_sport fin_fi.fi_ports[0] 491255332Scy#define fin_dport fin_fi.fi_ports[1] 492255332Scy#define fin_tcpf fin_fi.fi_tcpf 493255332Scy#define fin_src6 fin_fi.fi_src 494255332Scy#define fin_dst6 fin_fi.fi_dst 495255332Scy#define fin_srcip6 fin_fi.fi_src.in6 496255332Scy#define fin_dstip6 fin_fi.fi_dst.in6 49760851Sdarrenr 498170268Sdarrenr#define IPF_IN 0 499170268Sdarrenr#define IPF_OUT 1 500145522Sdarrenr 501145522Sdarrenrtypedef struct frentry *(*ipfunc_t) __P((fr_info_t *, u_32_t *)); 502255332Scytypedef int (*ipfuncinit_t) __P((struct ipf_main_softc_s *, struct frentry *)); 503145522Sdarrenr 504145522Sdarrenrtypedef struct ipfunc_resolve { 505145522Sdarrenr char ipfu_name[32]; 506145522Sdarrenr ipfunc_t ipfu_addr; 507145522Sdarrenr ipfuncinit_t ipfu_init; 508255332Scy ipfuncinit_t ipfu_fini; 509145522Sdarrenr} ipfunc_resolve_t; 510145522Sdarrenr 51153642Sguido/* 51253642Sguido * Size for compares on fr_info structures 51353642Sguido */ 51453642Sguido#define FI_CSIZE offsetof(fr_info_t, fin_icode) 51592685Sdarrenr#define FI_LCSIZE offsetof(fr_info_t, fin_dp) 51653642Sguido 51753642Sguido/* 518145522Sdarrenr * Size for copying cache fr_info structure 51995418Sdarrenr */ 520145522Sdarrenr#define FI_COPYSIZE offsetof(fr_info_t, fin_dp) 52195418Sdarrenr 52295418Sdarrenr/* 523145522Sdarrenr * Structure for holding IPFilter's tag information 52453642Sguido */ 525145522Sdarrenr#define IPFTAG_LEN 16 526145522Sdarrenrtypedef struct { 527145522Sdarrenr union { 528145522Sdarrenr u_32_t iptu_num[4]; 529145522Sdarrenr char iptu_tag[IPFTAG_LEN]; 530145522Sdarrenr } ipt_un; 531145522Sdarrenr int ipt_not; 532145522Sdarrenr} ipftag_t; 53353642Sguido 534145522Sdarrenr#define ipt_tag ipt_un.iptu_tag 535145522Sdarrenr#define ipt_num ipt_un.iptu_num 536145522Sdarrenr 537255332Scy/* 538255332Scy * Structure to define address for pool lookups. 539255332Scy */ 540255332Scytypedef struct { 541255332Scy u_char adf_len; 542255332Scy sa_family_t adf_family; 543255332Scy u_char adf_xxx[2]; 544255332Scy i6addr_t adf_addr; 545255332Scy} addrfamily_t; 546145522Sdarrenr 547255332Scy 548255332ScyRBI_LINK(ipf_rb, host_node_s); 549255332Scy 550255332Scytypedef struct host_node_s { 551255332Scy RBI_FIELD(ipf_rb) hn_entry; 552255332Scy addrfamily_t hn_addr; 553255332Scy int hn_active; 554255332Scy} host_node_t; 555255332Scy 556255332Scytypedef RBI_HEAD(ipf_rb, host_node_s) ipf_rb_head_t; 557255332Scy 558255332Scytypedef struct host_track_s { 559255332Scy ipf_rb_head_t ht_root; 560255332Scy int ht_max_nodes; 561255332Scy int ht_max_per_node; 562255332Scy int ht_netmask; 563255332Scy int ht_cur_nodes; 564255332Scy} host_track_t; 565255332Scy 566255332Scy 567255332Scytypedef enum fr_dtypes_e { 568255332Scy FRD_NORMAL = 0, 569255332Scy FRD_DSTLIST 570255332Scy} fr_dtypes_t; 571145522Sdarrenr/* 572145522Sdarrenr * This structure is used to hold information about the next hop for where 573145522Sdarrenr * to forward a packet. 574145522Sdarrenr */ 57553642Sguidotypedef struct frdest { 576255332Scy void *fd_ptr; 577255332Scy addrfamily_t fd_addr; 578255332Scy fr_dtypes_t fd_type; 579255332Scy int fd_name; 580255332Scy int fd_local; 58153642Sguido} frdest_t; 58253642Sguido 583255332Scy#define fd_ip6 fd_addr.adf_addr 58492685Sdarrenr#define fd_ip fd_ip6.in4 58592685Sdarrenr 58692685Sdarrenr 587255332Scytypedef enum fr_ctypes_e { 588255332Scy FR_NONE = 0, 589255332Scy FR_EQUAL, 590255332Scy FR_NEQUAL, 591255332Scy FR_LESST, 592255332Scy FR_GREATERT, 593255332Scy FR_LESSTE, 594255332Scy FR_GREATERTE, 595255332Scy FR_OUTRANGE, 596255332Scy FR_INRANGE, 597255332Scy FR_INCRANGE 598255332Scy} fr_ctypes_t; 599255332Scy 600145522Sdarrenr/* 601145522Sdarrenr * This structure holds information about a port comparison. 602145522Sdarrenr */ 60360851Sdarrenrtypedef struct frpcmp { 604255332Scy fr_ctypes_t frp_cmp; /* data for port comparisons */ 605255332Scy u_32_t frp_port; /* top port for <> and >< */ 606255332Scy u_32_t frp_top; /* top port for <> and >< */ 60760851Sdarrenr} frpcmp_t; 60860851Sdarrenr 609145522Sdarrenr 610145522Sdarrenr/* 611145522Sdarrenr * Structure containing all the relevant TCP things that can be checked in 612145522Sdarrenr * a filter rule. 613145522Sdarrenr */ 61460851Sdarrenrtypedef struct frtuc { 615145522Sdarrenr u_char ftu_tcpfm; /* tcp flags mask */ 616145522Sdarrenr u_char ftu_tcpf; /* tcp flags */ 61760851Sdarrenr frpcmp_t ftu_src; 61860851Sdarrenr frpcmp_t ftu_dst; 61960851Sdarrenr} frtuc_t; 62060851Sdarrenr 62160851Sdarrenr#define ftu_scmp ftu_src.frp_cmp 62260851Sdarrenr#define ftu_dcmp ftu_dst.frp_cmp 62360851Sdarrenr#define ftu_sport ftu_src.frp_port 62460851Sdarrenr#define ftu_dport ftu_dst.frp_port 62560851Sdarrenr#define ftu_stop ftu_src.frp_top 62660851Sdarrenr#define ftu_dtop ftu_dst.frp_top 62760851Sdarrenr 628145522Sdarrenr#define FR_TCPFMAX 0x3f 629145522Sdarrenr 630255332Scytypedef enum fr_atypes_e { 631255332Scy FRI_NONE = -1, /* For LHS of NAT */ 632255332Scy FRI_NORMAL = 0, /* Normal address */ 633255332Scy FRI_DYNAMIC, /* dynamic address */ 634255332Scy FRI_LOOKUP, /* address is a pool # */ 635255332Scy FRI_RANGE, /* address/mask is a range */ 636255332Scy FRI_NETWORK, /* network address from if */ 637255332Scy FRI_BROADCAST, /* broadcast address from if */ 638255332Scy FRI_PEERADDR, /* Peer address for P-to-P */ 639255332Scy FRI_NETMASKED, /* network address with netmask from if */ 640255332Scy FRI_SPLIT, /* For NAT compatibility */ 641255332Scy FRI_INTERFACE /* address is based on interface name */ 642255332Scy} fr_atypes_t; 643255332Scy 644145522Sdarrenr/* 645145522Sdarrenr * This structure makes up what is considered to be the IPFilter specific 646145522Sdarrenr * matching components of a filter rule, as opposed to the data structures 647145522Sdarrenr * used to define the result which are in frentry_t and not here. 648145522Sdarrenr */ 649145522Sdarrenrtypedef struct fripf { 650255332Scy fr_ip_t fri_ip; 651255332Scy fr_ip_t fri_mip; /* mask structure */ 652145522Sdarrenr 653255332Scy u_short fri_icmpm; /* data for ICMP packets (mask) */ 654255332Scy u_short fri_icmp; 655145522Sdarrenr 656255332Scy frtuc_t fri_tuc; 657255332Scy fr_atypes_t fri_satype; /* addres type */ 658255332Scy fr_atypes_t fri_datype; /* addres type */ 659255332Scy int fri_sifpidx; /* doing dynamic addressing */ 660255332Scy int fri_difpidx; /* index into fr_ifps[] to use when */ 661145522Sdarrenr} fripf_t; 662145522Sdarrenr 663170268Sdarrenr#define fri_dlookup fri_mip.fi_dst 664170268Sdarrenr#define fri_slookup fri_mip.fi_src 665170268Sdarrenr#define fri_dstnum fri_mip.fi_dstnum 666145522Sdarrenr#define fri_srcnum fri_mip.fi_srcnum 667170268Sdarrenr#define fri_dstname fri_mip.fi_dstname 668170268Sdarrenr#define fri_srcname fri_mip.fi_srcname 669170268Sdarrenr#define fri_dstptr fri_mip.fi_dstptr 670145522Sdarrenr#define fri_srcptr fri_mip.fi_srcptr 671145522Sdarrenr 672145522Sdarrenr 673255332Scytypedef enum fr_rtypes_e { 674255332Scy FR_T_NONE = 0, 675255332Scy FR_T_IPF, /* IPF structures */ 676255332Scy FR_T_BPFOPC, /* BPF opcode */ 677255332Scy FR_T_CALLFUNC, /* callout to function in fr_func only */ 678255332Scy FR_T_COMPIPF, /* compiled C code */ 679255332Scy FR_T_IPFEXPR, /* IPF expression */ 680255332Scy FR_T_BUILTIN = 0x40000000, /* rule is in kernel space */ 681255332Scy FR_T_IPF_BUILTIN, 682255332Scy FR_T_BPFOPC_BUILTIN, 683255332Scy FR_T_CALLFUNC_BUILTIN, 684255332Scy FR_T_COMPIPF_BUILTIN, 685255332Scy FR_T_IPFEXPR_BUILTIN 686255332Scy} fr_rtypes_t; 687145522Sdarrenr 688145522Sdarrenrtypedef struct frentry * (* frentfunc_t) __P((fr_info_t *)); 689145522Sdarrenr 69053642Sguidotypedef struct frentry { 691145522Sdarrenr ipfmutex_t fr_lock; 69253642Sguido struct frentry *fr_next; 693255332Scy struct frentry **fr_pnext; 694255332Scy struct frgroup *fr_grp; 695255332Scy struct frgroup *fr_grphead; 696255332Scy struct frgroup *fr_icmpgrp; 697145522Sdarrenr struct ipscan *fr_isc; 698255332Scy struct frentry *fr_dnext; /* 2 fr_die linked list pointers */ 699255332Scy struct frentry **fr_pdnext; 700145522Sdarrenr void *fr_ifas[4]; 701145522Sdarrenr void *fr_ptr; /* for use with fr_arg */ 702255332Scy int fr_comment; /* text comment for rule */ 703255332Scy int fr_size; /* size of this structure */ 704255332Scy int fr_ref; /* reference count */ 705145522Sdarrenr int fr_statecnt; /* state count - for limit rules */ 706255332Scy u_32_t fr_die; /* only used on loading the rule */ 707255332Scy u_int fr_cksum; /* checksum on filter rules for performance */ 70853642Sguido /* 709170268Sdarrenr * The line number from a file is here because we need to be able to 710170268Sdarrenr * match the rule generated with ``grep rule ipf.conf | ipf -rf -'' 711170268Sdarrenr * with the rule loaded using ``ipf -f ipf.conf'' - thus it can't be 712170268Sdarrenr * on the other side of fr_func. 713170268Sdarrenr */ 714170268Sdarrenr int fr_flineno; /* line number from conf file */ 715170268Sdarrenr /* 71653642Sguido * These are only incremented when a packet matches this rule and 71753642Sguido * it is the last match 71853642Sguido */ 71953642Sguido U_QUAD_T fr_hits; 72053642Sguido U_QUAD_T fr_bytes; 721145522Sdarrenr 72253642Sguido /* 723145522Sdarrenr * For PPS rate limiting 724255332Scy * fr_lpu is used to always have the same size for this field, 725255332Scy * allocating 64bits for seconds and 32bits for milliseconds. 72653642Sguido */ 727255332Scy union { 728255332Scy struct timeval frp_lastpkt; 729255332Scy char frp_bytes[12]; 730255332Scy } fr_lpu; 731145522Sdarrenr int fr_curpps; 73253642Sguido 733145522Sdarrenr union { 734145522Sdarrenr void *fru_data; 735255332Scy char *fru_caddr; 736145522Sdarrenr fripf_t *fru_ipf; 737145522Sdarrenr frentfunc_t fru_func; 738145522Sdarrenr } fr_dun; 73953642Sguido 740145522Sdarrenr /* 741145522Sdarrenr * Fields after this may not change whilst in the kernel. 742145522Sdarrenr */ 743145522Sdarrenr ipfunc_t fr_func; /* call this function */ 744145522Sdarrenr int fr_dsize; 745145522Sdarrenr int fr_pps; 746255332Scy fr_rtypes_t fr_type; 74753642Sguido u_32_t fr_flags; /* per-rule flags && options (see below) */ 748145522Sdarrenr u_32_t fr_logtag; /* user defined log tag # */ 749145522Sdarrenr u_32_t fr_collect; /* collection number */ 750255332Scy u_int fr_arg; /* misc. numeric arg for rule */ 75160851Sdarrenr u_int fr_loglevel; /* syslog log facility + priority */ 752255332Scy u_char fr_family; 75360851Sdarrenr u_char fr_icode; /* return ICMP code */ 754255332Scy int fr_group; /* group to which this rule belongs */ 755255332Scy int fr_grhead; /* group # which this rule starts */ 756255332Scy int fr_ifnames[4]; 757255332Scy int fr_isctag; 758255332Scy int fr_rpc; /* XID Filtering */ 759145522Sdarrenr ipftag_t fr_nattag; 760145522Sdarrenr frdest_t fr_tifs[2]; /* "to"/"reply-to" interface */ 761145522Sdarrenr frdest_t fr_dif; /* duplicate packet interface */ 762145522Sdarrenr /* 763255332Scy * These are all options related to stateful filtering 764145522Sdarrenr */ 765255332Scy host_track_t fr_srctrack; 766255332Scy int fr_nostatelog; 767255332Scy int fr_statemax; /* max reference count */ 768255332Scy int fr_icmphead; /* ICMP group for state options */ 769255332Scy u_int fr_age[2]; /* non-TCP state timeouts */ 770255332Scy /* 771255332Scy * How big is the name buffer at the end? 772255332Scy */ 773255332Scy int fr_namelen; 774255332Scy char fr_names[1]; 77553642Sguido} frentry_t; 77653642Sguido 777255332Scy#define fr_lastpkt fr_lpu.frp_lastpkt 778145522Sdarrenr#define fr_caddr fr_dun.fru_caddr 779145522Sdarrenr#define fr_data fr_dun.fru_data 780145522Sdarrenr#define fr_dfunc fr_dun.fru_func 781145522Sdarrenr#define fr_ipf fr_dun.fru_ipf 782145522Sdarrenr#define fr_ip fr_ipf->fri_ip 783145522Sdarrenr#define fr_mip fr_ipf->fri_mip 784145522Sdarrenr#define fr_icmpm fr_ipf->fri_icmpm 785145522Sdarrenr#define fr_icmp fr_ipf->fri_icmp 786145522Sdarrenr#define fr_tuc fr_ipf->fri_tuc 787145522Sdarrenr#define fr_satype fr_ipf->fri_satype 788145522Sdarrenr#define fr_datype fr_ipf->fri_datype 789145522Sdarrenr#define fr_sifpidx fr_ipf->fri_sifpidx 790145522Sdarrenr#define fr_difpidx fr_ipf->fri_difpidx 79153642Sguido#define fr_proto fr_ip.fi_p 792145522Sdarrenr#define fr_mproto fr_mip.fi_p 79353642Sguido#define fr_ttl fr_ip.fi_ttl 794145522Sdarrenr#define fr_mttl fr_mip.fi_ttl 79553642Sguido#define fr_tos fr_ip.fi_tos 796145522Sdarrenr#define fr_mtos fr_mip.fi_tos 79760851Sdarrenr#define fr_tcpfm fr_tuc.ftu_tcpfm 79860851Sdarrenr#define fr_tcpf fr_tuc.ftu_tcpf 79960851Sdarrenr#define fr_scmp fr_tuc.ftu_scmp 80060851Sdarrenr#define fr_dcmp fr_tuc.ftu_dcmp 80160851Sdarrenr#define fr_dport fr_tuc.ftu_dport 80260851Sdarrenr#define fr_sport fr_tuc.ftu_sport 80360851Sdarrenr#define fr_stop fr_tuc.ftu_stop 80460851Sdarrenr#define fr_dtop fr_tuc.ftu_dtop 80560851Sdarrenr#define fr_dst fr_ip.fi_dst.in4 806255332Scy#define fr_dst6 fr_ip.fi_dst 807145522Sdarrenr#define fr_daddr fr_ip.fi_dst.in4.s_addr 80860851Sdarrenr#define fr_src fr_ip.fi_src.in4 809255332Scy#define fr_src6 fr_ip.fi_src 810145522Sdarrenr#define fr_saddr fr_ip.fi_src.in4.s_addr 81160851Sdarrenr#define fr_dmsk fr_mip.fi_dst.in4 812255332Scy#define fr_dmsk6 fr_mip.fi_dst 813145522Sdarrenr#define fr_dmask fr_mip.fi_dst.in4.s_addr 81460851Sdarrenr#define fr_smsk fr_mip.fi_src.in4 815255332Scy#define fr_smsk6 fr_mip.fi_src 816145522Sdarrenr#define fr_smask fr_mip.fi_src.in4.s_addr 817145522Sdarrenr#define fr_dstnum fr_ip.fi_dstnum 818145522Sdarrenr#define fr_srcnum fr_ip.fi_srcnum 819170268Sdarrenr#define fr_dlookup fr_ip.fi_dst 820170268Sdarrenr#define fr_slookup fr_ip.fi_src 821170268Sdarrenr#define fr_dstname fr_ip.fi_dstname 822170268Sdarrenr#define fr_srcname fr_ip.fi_srcname 823145522Sdarrenr#define fr_dsttype fr_ip.fi_dsttype 824145522Sdarrenr#define fr_srctype fr_ip.fi_srctype 825170268Sdarrenr#define fr_dstsubtype fr_ip.fi_dstsubtype 826170268Sdarrenr#define fr_srcsubtype fr_ip.fi_srcsubtype 827145522Sdarrenr#define fr_dstptr fr_mip.fi_dstptr 828145522Sdarrenr#define fr_srcptr fr_mip.fi_srcptr 829145522Sdarrenr#define fr_dstfunc fr_mip.fi_dstfunc 830145522Sdarrenr#define fr_srcfunc fr_mip.fi_srcfunc 831145522Sdarrenr#define fr_optbits fr_ip.fi_optmsk 832145522Sdarrenr#define fr_optmask fr_mip.fi_optmsk 833145522Sdarrenr#define fr_secbits fr_ip.fi_secmsk 834145522Sdarrenr#define fr_secmask fr_mip.fi_secmsk 835145522Sdarrenr#define fr_authbits fr_ip.fi_auth 836145522Sdarrenr#define fr_authmask fr_mip.fi_auth 837255332Scy#define fr_doi fr_ip.fi_doi 838255332Scy#define fr_doimask fr_mip.fi_doi 839145522Sdarrenr#define fr_flx fr_ip.fi_flx 840145522Sdarrenr#define fr_mflx fr_mip.fi_flx 84192685Sdarrenr#define fr_ifa fr_ifas[0] 84292685Sdarrenr#define fr_oifa fr_ifas[2] 843145522Sdarrenr#define fr_tif fr_tifs[0] 844145522Sdarrenr#define fr_rif fr_tifs[1] 84553642Sguido 846145522Sdarrenr#define FR_NOLOGTAG 0 84753642Sguido 848145522Sdarrenr#define FR_CMPSIZ (sizeof(struct frentry) - \ 849145522Sdarrenr offsetof(struct frentry, fr_func)) 850255332Scy#define FR_NAME(_f, _n) (_f)->fr_names + (_f)->_n 851145522Sdarrenr 852145522Sdarrenr 853145522Sdarrenr/* 85453642Sguido * fr_flags 85553642Sguido */ 85653642Sguido#define FR_BLOCK 0x00001 /* do not allow packet to pass */ 85753642Sguido#define FR_PASS 0x00002 /* allow packet to pass */ 858145522Sdarrenr#define FR_AUTH 0x00003 /* use authentication */ 859145522Sdarrenr#define FR_PREAUTH 0x00004 /* require preauthentication */ 860145522Sdarrenr#define FR_ACCOUNT 0x00005 /* Accounting rule */ 861145522Sdarrenr#define FR_SKIP 0x00006 /* skip rule */ 862255332Scy#define FR_DECAPSULATE 0x00008 /* decapsulate rule */ 863255332Scy#define FR_CALL 0x00009 /* call rule */ 864145522Sdarrenr#define FR_CMDMASK 0x0000f 86553642Sguido#define FR_LOG 0x00010 /* Log */ 86653642Sguido#define FR_LOGB 0x00011 /* Log-fail */ 86753642Sguido#define FR_LOGP 0x00012 /* Log-pass */ 868145522Sdarrenr#define FR_LOGMASK (FR_LOG|FR_CMDMASK) 869145522Sdarrenr#define FR_CALLNOW 0x00020 /* call another function (fr_func) if matches */ 870145522Sdarrenr#define FR_NOTSRCIP 0x00040 871145522Sdarrenr#define FR_NOTDSTIP 0x00080 872145522Sdarrenr#define FR_QUICK 0x00100 /* match & stop processing list */ 873145522Sdarrenr#define FR_KEEPFRAG 0x00200 /* keep fragment information */ 874145522Sdarrenr#define FR_KEEPSTATE 0x00400 /* keep `connection' state information */ 875145522Sdarrenr#define FR_FASTROUTE 0x00800 /* bypass normal routing */ 876145522Sdarrenr#define FR_RETRST 0x01000 /* Return TCP RST packet - reset connection */ 877145522Sdarrenr#define FR_RETICMP 0x02000 /* Return ICMP unreachable packet */ 878145522Sdarrenr#define FR_FAKEICMP 0x03000 /* Return ICMP unreachable with fake source */ 879145522Sdarrenr#define FR_OUTQUE 0x04000 /* outgoing packets */ 880145522Sdarrenr#define FR_INQUE 0x08000 /* ingoing packets */ 881145522Sdarrenr#define FR_LOGBODY 0x10000 /* Log the body */ 882145522Sdarrenr#define FR_LOGFIRST 0x20000 /* Log the first byte if state held */ 88353642Sguido#define FR_LOGORBLOCK 0x40000 /* block the packet if it can't be logged */ 884255332Scy#define FR_STLOOSE 0x80000 /* loose state checking */ 885145522Sdarrenr#define FR_FRSTRICT 0x100000 /* strict frag. cache */ 886145522Sdarrenr#define FR_STSTRICT 0x200000 /* strict keep state */ 887145522Sdarrenr#define FR_NEWISN 0x400000 /* new ISN for outgoing TCP */ 888145522Sdarrenr#define FR_NOICMPERR 0x800000 /* do not match ICMP errors in state */ 889145522Sdarrenr#define FR_STATESYNC 0x1000000 /* synchronize state to slave */ 890255332Scy#define FR_COPIED 0x2000000 /* copied from user space */ 891255332Scy#define FR_INACTIVE 0x4000000 /* only used when flush'ing rules */ 892145522Sdarrenr#define FR_NOMATCH 0x8000000 /* no match occured */ 893145522Sdarrenr /* 0x10000000 FF_LOGPASS */ 894145522Sdarrenr /* 0x20000000 FF_LOGBLOCK */ 895145522Sdarrenr /* 0x40000000 FF_LOGNOMATCH */ 896145522Sdarrenr /* 0x80000000 FF_BLOCKNONIP */ 89753642Sguido 89853642Sguido#define FR_RETMASK (FR_RETICMP|FR_RETRST|FR_FAKEICMP) 899145522Sdarrenr#define FR_ISBLOCK(x) (((x) & FR_CMDMASK) == FR_BLOCK) 900145522Sdarrenr#define FR_ISPASS(x) (((x) & FR_CMDMASK) == FR_PASS) 901145522Sdarrenr#define FR_ISAUTH(x) (((x) & FR_CMDMASK) == FR_AUTH) 902145522Sdarrenr#define FR_ISPREAUTH(x) (((x) & FR_CMDMASK) == FR_PREAUTH) 903145522Sdarrenr#define FR_ISACCOUNT(x) (((x) & FR_CMDMASK) == FR_ACCOUNT) 904145522Sdarrenr#define FR_ISSKIP(x) (((x) & FR_CMDMASK) == FR_SKIP) 905255332Scy#define FR_ISDECAPS(x) (((x) & FR_CMDMASK) == FR_DECAPSULATE) 906145522Sdarrenr#define FR_ISNOMATCH(x) ((x) & FR_NOMATCH) 907145522Sdarrenr#define FR_INOUT (FR_INQUE|FR_OUTQUE) 90853642Sguido 90953642Sguido/* 91053642Sguido * recognized flags for SIOCGETFF and SIOCSETFF, and get put in fr_flags 91153642Sguido */ 91253642Sguido#define FF_LOGPASS 0x10000000 91353642Sguido#define FF_LOGBLOCK 0x20000000 91453642Sguido#define FF_LOGNOMATCH 0x40000000 91553642Sguido#define FF_LOGGING (FF_LOGPASS|FF_LOGBLOCK|FF_LOGNOMATCH) 91653642Sguido#define FF_BLOCKNONIP 0x80000000 /* Solaris2 Only */ 91753642Sguido 91853642Sguido 919145522Sdarrenr/* 920145522Sdarrenr * Structure that passes information on what/how to flush to the kernel. 921145522Sdarrenr */ 922145522Sdarrenrtypedef struct ipfflush { 923255332Scy int ipflu_how; 924255332Scy int ipflu_arg; 925145522Sdarrenr} ipfflush_t; 926145522Sdarrenr 927145522Sdarrenr 928145522Sdarrenr/* 929145522Sdarrenr * 930145522Sdarrenr */ 931145522Sdarrenrtypedef struct ipfgetctl { 932255332Scy u_int ipfg_min; /* min value */ 933255332Scy u_int ipfg_current; /* current value */ 934255332Scy u_int ipfg_max; /* max value */ 935255332Scy u_int ipfg_default; /* default value */ 936255332Scy u_int ipfg_steps; /* value increments */ 937255332Scy char ipfg_name[40]; /* tag name for this control */ 938145522Sdarrenr} ipfgetctl_t; 939145522Sdarrenr 940145522Sdarrenrtypedef struct ipfsetctl { 941145522Sdarrenr int ipfs_which; /* 0 = min 1 = current 2 = max 3 = default */ 942145522Sdarrenr u_int ipfs_value; /* min value */ 943145522Sdarrenr char ipfs_name[40]; /* tag name for this control */ 944145522Sdarrenr} ipfsetctl_t; 945145522Sdarrenr 946145522Sdarrenr 947145522Sdarrenr/* 948145522Sdarrenr * Some of the statistics below are in their own counters, but most are kept 949145522Sdarrenr * in this single structure so that they can all easily be collected and 950145522Sdarrenr * copied back as required. 951145522Sdarrenr */ 952255332Scytypedef struct ipf_statistics { 953255332Scy u_long fr_icmp_coalesce; 954255332Scy u_long fr_tcp_frag; 955255332Scy u_long fr_tcp_pullup; 956255332Scy u_long fr_tcp_short; 957255332Scy u_long fr_tcp_small; 958255332Scy u_long fr_tcp_bad_flags; 959255332Scy u_long fr_udp_pullup; 960255332Scy u_long fr_ip_freed; 961255332Scy u_long fr_v6_ah_bad; 962255332Scy u_long fr_v6_bad; 963255332Scy u_long fr_v6_badfrag; 964255332Scy u_long fr_v6_dst_bad; 965255332Scy u_long fr_v6_esp_pullup; 966255332Scy u_long fr_v6_ext_short; 967255332Scy u_long fr_v6_ext_pullup; 968255332Scy u_long fr_v6_ext_hlen; 969255332Scy u_long fr_v6_frag_bad; 970255332Scy u_long fr_v6_frag_pullup; 971255332Scy u_long fr_v6_frag_size; 972255332Scy u_long fr_v6_gre_pullup; 973255332Scy u_long fr_v6_icmp6_pullup; 974255332Scy u_long fr_v6_rh_bad; 975255332Scy u_long fr_v6_badttl; /* TTL in packet doesn't reach minimum */ 976255332Scy u_long fr_v4_ah_bad; 977255332Scy u_long fr_v4_ah_pullup; 978255332Scy u_long fr_v4_esp_pullup; 979255332Scy u_long fr_v4_cipso_bad; 980255332Scy u_long fr_v4_cipso_tlen; 981255332Scy u_long fr_v4_gre_frag; 982255332Scy u_long fr_v4_gre_pullup; 983255332Scy u_long fr_v4_icmp_frag; 984255332Scy u_long fr_v4_icmp_pullup; 985255332Scy u_long fr_v4_badttl; /* TTL in packet doesn't reach minimum */ 986255332Scy u_long fr_v4_badsrc; /* source received doesn't match route */ 987255332Scy u_long fr_l4_badcksum; /* layer 4 header checksum failure */ 988255332Scy u_long fr_badcoalesces; 98953642Sguido u_long fr_pass; /* packets allowed */ 99053642Sguido u_long fr_block; /* packets denied */ 99153642Sguido u_long fr_nom; /* packets which don't match any rule */ 99257096Sguido u_long fr_short; /* packets which are short */ 99353642Sguido u_long fr_ppkl; /* packets allowed and logged */ 99453642Sguido u_long fr_bpkl; /* packets denied and logged */ 99553642Sguido u_long fr_npkl; /* packets unmatched and logged */ 99653642Sguido u_long fr_ret; /* packets for which a return is sent */ 99753642Sguido u_long fr_acct; /* packets for which counting was performed */ 99853642Sguido u_long fr_bnfr; /* bad attempts to allocate fragment state */ 99953642Sguido u_long fr_nfr; /* new fragment state kept */ 100053642Sguido u_long fr_cfr; /* add new fragment state but complete pkt */ 100153642Sguido u_long fr_bads; /* bad attempts to allocate packet state */ 100253642Sguido u_long fr_ads; /* new packet state kept */ 100353642Sguido u_long fr_chit; /* cached hit */ 1004255332Scy u_long fr_cmiss; /* cached miss */ 100553642Sguido u_long fr_tcpbad; /* TCP checksum check failures */ 100653642Sguido u_long fr_pull[2]; /* good and bad pullup attempts */ 100753642Sguido u_long fr_bad; /* bad IP packets to the filter */ 1008145522Sdarrenr u_long fr_ipv6; /* IPv6 packets in/out */ 1009145522Sdarrenr u_long fr_ppshit; /* dropped because of pps ceiling */ 1010145522Sdarrenr u_long fr_ipud; /* IP id update failures */ 1011255332Scy u_long fr_blocked[FRB_MAX_VALUE + 1]; 1012255332Scy} ipf_statistics_t; 101353642Sguido 101453642Sguido/* 101553642Sguido * Log structure. Each packet header logged is prepended by one of these. 101653642Sguido * Following this in the log records read from the device will be an ipflog 101753642Sguido * structure which is then followed by any packet data. 101853642Sguido */ 101953642Sguidotypedef struct iplog { 1020110916Sdarrenr u_32_t ipl_magic; 1021110916Sdarrenr u_int ipl_count; 1022255332Scy u_32_t ipl_seqnum; 1023145522Sdarrenr struct timeval ipl_time; 1024110916Sdarrenr size_t ipl_dsize; 102553642Sguido struct iplog *ipl_next; 102653642Sguido} iplog_t; 102753642Sguido 1028145522Sdarrenr#define ipl_sec ipl_time.tv_sec 1029145522Sdarrenr#define ipl_usec ipl_time.tv_usec 1030110916Sdarrenr 1031145522Sdarrenr#define IPL_MAGIC 0x49504c4d /* 'IPLM' */ 1032145522Sdarrenr#define IPL_MAGIC_NAT 0x49504c4e /* 'IPLN' */ 1033145522Sdarrenr#define IPL_MAGIC_STATE 0x49504c53 /* 'IPLS' */ 103492685Sdarrenr#define IPLOG_SIZE sizeof(iplog_t) 103553642Sguido 103653642Sguidotypedef struct ipflog { 103753642Sguido#if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199603)) || \ 103853642Sguido (defined(OpenBSD) && (OpenBSD >= 199603)) 103953642Sguido#else 104053642Sguido u_int fl_unit; 104153642Sguido#endif 1042255332Scy u_32_t fl_rule; 1043255332Scy u_32_t fl_flags; 1044255332Scy u_32_t fl_lflags; 1045255332Scy u_32_t fl_logtag; 1046145522Sdarrenr ipftag_t fl_nattag; 1047255332Scy u_short fl_plen; /* extra data after hlen */ 1048255332Scy u_short fl_loglevel; /* syslog log level */ 1049255332Scy char fl_group[FR_GROUPLEN]; 1050255332Scy u_char fl_hlen; /* length of IP headers saved */ 1051255332Scy u_char fl_dir; 1052255332Scy u_char fl_breason; /* from fin_reason */ 1053255332Scy u_char fl_family; /* address family of packet logged */ 1054255332Scy char fl_ifname[LIFNAMSIZ]; 105553642Sguido} ipflog_t; 105653642Sguido 105753642Sguido#ifndef IPF_LOGGING 105853642Sguido# define IPF_LOGGING 0 105953642Sguido#endif 106053642Sguido#ifndef IPF_DEFAULT_PASS 106153642Sguido# define IPF_DEFAULT_PASS FR_PASS 106253642Sguido#endif 106353642Sguido 1064255332Scy#define DEFAULT_IPFLOGSIZE 32768 1065145522Sdarrenr#ifndef IPFILTER_LOGSIZE 1066145522Sdarrenr# define IPFILTER_LOGSIZE DEFAULT_IPFLOGSIZE 1067145522Sdarrenr#else 1068255332Scy# if IPFILTER_LOGSIZE < 8192 1069255332Scy# error IPFILTER_LOGSIZE too small. Must be >= 8192 1070145522Sdarrenr# endif 1071145522Sdarrenr#endif 107253642Sguido 107380482Sdarrenr#define IPF_OPTCOPY 0x07ff00 /* bit mask of copied options */ 107480482Sdarrenr 107553642Sguido/* 107653642Sguido * Device filenames for reading log information. Use ipf on Solaris2 because 107753642Sguido * ipl is already a name used by something else. 107853642Sguido */ 107953642Sguido#ifndef IPL_NAME 108053642Sguido# if SOLARIS 108153642Sguido# define IPL_NAME "/dev/ipf" 108253642Sguido# else 108353642Sguido# define IPL_NAME "/dev/ipl" 108453642Sguido# endif 108553642Sguido#endif 1086145522Sdarrenr/* 1087145522Sdarrenr * Pathnames for various IP Filter control devices. Used by LKM 1088145522Sdarrenr * and userland, so defined here. 1089145522Sdarrenr */ 1090145522Sdarrenr#define IPNAT_NAME "/dev/ipnat" 1091145522Sdarrenr#define IPSTATE_NAME "/dev/ipstate" 1092145522Sdarrenr#define IPAUTH_NAME "/dev/ipauth" 1093145522Sdarrenr#define IPSYNC_NAME "/dev/ipsync" 1094145522Sdarrenr#define IPSCAN_NAME "/dev/ipscan" 1095145522Sdarrenr#define IPLOOKUP_NAME "/dev/iplookup" 109653642Sguido 109753642Sguido#define IPL_LOGIPF 0 /* Minor device #'s for accessing logs */ 109853642Sguido#define IPL_LOGNAT 1 109953642Sguido#define IPL_LOGSTATE 2 110053642Sguido#define IPL_LOGAUTH 3 1101145522Sdarrenr#define IPL_LOGSYNC 4 1102145522Sdarrenr#define IPL_LOGSCAN 5 1103145522Sdarrenr#define IPL_LOGLOOKUP 6 1104145522Sdarrenr#define IPL_LOGCOUNT 7 1105145522Sdarrenr#define IPL_LOGMAX 7 1106145522Sdarrenr#define IPL_LOGSIZE IPL_LOGMAX + 1 1107145522Sdarrenr#define IPL_LOGALL -1 1108145522Sdarrenr#define IPL_LOGNONE -2 110953642Sguido 1110145522Sdarrenr/* 1111145522Sdarrenr * For SIOCGETFS 1112145522Sdarrenr */ 1113145522Sdarrenrtypedef struct friostat { 1114255332Scy ipf_statistics_t f_st[2]; 1115255332Scy frentry_t *f_ipf[2][2]; 1116255332Scy frentry_t *f_acct[2][2]; 1117255332Scy frentry_t *f_auth; 1118255332Scy struct frgroup *f_groups[IPL_LOGSIZE][2]; 1119255332Scy u_long f_froute[2]; 1120255332Scy u_long f_log_ok; 1121255332Scy u_long f_log_fail; 1122255332Scy u_long f_rb_no_mem; 1123255332Scy u_long f_rb_node_max; 1124255332Scy u_32_t f_ticks; 1125255332Scy int f_locks[IPL_LOGSIZE]; 1126255332Scy int f_defpass; /* default pass - from fr_pass */ 1127255332Scy int f_active; /* 1 or 0 - active rule set */ 1128255332Scy int f_running; /* 1 if running, else 0 */ 1129255332Scy int f_logging; /* 1 if enabled, else 0 */ 1130255332Scy int f_features; 1131255332Scy char f_version[32]; /* version string */ 1132145522Sdarrenr} friostat_t; 1133145522Sdarrenr 1134145522Sdarrenr#define f_fin f_ipf[0] 1135145522Sdarrenr#define f_fout f_ipf[1] 1136145522Sdarrenr#define f_acctin f_acct[0] 1137145522Sdarrenr#define f_acctout f_acct[1] 1138145522Sdarrenr 1139145522Sdarrenr#define IPF_FEAT_LKM 0x001 1140145522Sdarrenr#define IPF_FEAT_LOG 0x002 1141145522Sdarrenr#define IPF_FEAT_LOOKUP 0x004 1142145522Sdarrenr#define IPF_FEAT_BPF 0x008 1143145522Sdarrenr#define IPF_FEAT_COMPILED 0x010 1144145522Sdarrenr#define IPF_FEAT_CKSUM 0x020 1145145522Sdarrenr#define IPF_FEAT_SYNC 0x040 1146145522Sdarrenr#define IPF_FEAT_SCAN 0x080 1147145522Sdarrenr#define IPF_FEAT_IPV6 0x100 1148145522Sdarrenr 1149145522Sdarrenrtypedef struct optlist { 1150145522Sdarrenr u_short ol_val; 1151145522Sdarrenr int ol_bit; 1152145522Sdarrenr} optlist_t; 1153145522Sdarrenr 1154145522Sdarrenr 1155145522Sdarrenr/* 1156145522Sdarrenr * Group list structure. 1157145522Sdarrenr */ 1158145522Sdarrenrtypedef struct frgroup { 1159255332Scy struct frgroup *fg_next; 1160255332Scy struct frentry *fg_head; 1161255332Scy struct frentry *fg_start; 1162255332Scy struct frgroup **fg_set; 1163255332Scy u_32_t fg_flags; 1164255332Scy int fg_ref; 1165255332Scy char fg_name[FR_GROUPLEN]; 1166145522Sdarrenr} frgroup_t; 1167145522Sdarrenr 1168145522Sdarrenr#define FG_NAME(g) (*(g)->fg_name == '\0' ? "" : (g)->fg_name) 1169145522Sdarrenr 1170145522Sdarrenr 1171145522Sdarrenr/* 1172145522Sdarrenr * Used by state and NAT tables 1173145522Sdarrenr */ 1174145522Sdarrenrtypedef struct icmpinfo { 1175255332Scy u_short ici_id; 1176255332Scy u_short ici_seq; 1177255332Scy u_char ici_type; 1178145522Sdarrenr} icmpinfo_t; 1179145522Sdarrenr 1180145522Sdarrenrtypedef struct udpinfo { 1181255332Scy u_short us_sport; 1182255332Scy u_short us_dport; 1183145522Sdarrenr} udpinfo_t; 1184145522Sdarrenr 1185145522Sdarrenr 1186145522Sdarrenrtypedef struct tcpdata { 1187255332Scy u_32_t td_end; 1188255332Scy u_32_t td_maxend; 1189255332Scy u_32_t td_maxwin; 1190255332Scy u_32_t td_winscale; 1191255332Scy u_32_t td_maxseg; 1192255332Scy int td_winflags; 1193145522Sdarrenr} tcpdata_t; 1194145522Sdarrenr 1195145522Sdarrenr#define TCP_WSCALE_MAX 14 1196145522Sdarrenr 1197145522Sdarrenr#define TCP_WSCALE_SEEN 0x00000001 1198145522Sdarrenr#define TCP_WSCALE_FIRST 0x00000002 1199153876Sguido#define TCP_SACK_PERMIT 0x00000004 1200145522Sdarrenr 1201145522Sdarrenr 1202145522Sdarrenrtypedef struct tcpinfo { 1203255332Scy u_32_t ts_sport; 1204255332Scy u_32_t ts_dport; 1205255332Scy tcpdata_t ts_data[2]; 1206145522Sdarrenr} tcpinfo_t; 1207145522Sdarrenr 1208145522Sdarrenr 1209153876Sguido/* 1210153876Sguido * Structures to define a GRE header as seen in a packet. 1211153876Sguido */ 1212145522Sdarrenrstruct grebits { 1213255332Scy#if defined(sparc) 1214255332Scy u_32_t grb_ver:3; 1215255332Scy u_32_t grb_flags:3; 1216255332Scy u_32_t grb_A:1; 1217255332Scy u_32_t grb_recur:1; 1218255332Scy u_32_t grb_s:1; 1219255332Scy u_32_t grb_S:1; 1220255332Scy u_32_t grb_K:1; 1221255332Scy u_32_t grb_R:1; 1222255332Scy u_32_t grb_C:1; 1223255332Scy#else 1224255332Scy u_32_t grb_C:1; 1225255332Scy u_32_t grb_R:1; 1226255332Scy u_32_t grb_K:1; 1227255332Scy u_32_t grb_S:1; 1228255332Scy u_32_t grb_s:1; 1229255332Scy u_32_t grb_recur:1; 1230255332Scy u_32_t grb_A:1; 1231255332Scy u_32_t grb_flags:3; 1232255332Scy u_32_t grb_ver:3; 1233255332Scy#endif 1234255332Scy u_short grb_ptype; 1235145522Sdarrenr}; 1236145522Sdarrenr 1237145522Sdarrenrtypedef struct grehdr { 1238145522Sdarrenr union { 1239145522Sdarrenr struct grebits gru_bits; 1240145522Sdarrenr u_short gru_flags; 1241145522Sdarrenr } gr_un; 1242255332Scy u_short gr_len; 1243255332Scy u_short gr_call; 1244145522Sdarrenr} grehdr_t; 1245145522Sdarrenr 1246145522Sdarrenr#define gr_flags gr_un.gru_flags 1247145522Sdarrenr#define gr_bits gr_un.gru_bits 1248145522Sdarrenr#define gr_ptype gr_bits.grb_ptype 1249145522Sdarrenr#define gr_C gr_bits.grb_C 1250145522Sdarrenr#define gr_R gr_bits.grb_R 1251145522Sdarrenr#define gr_K gr_bits.grb_K 1252145522Sdarrenr#define gr_S gr_bits.grb_S 1253145522Sdarrenr#define gr_s gr_bits.grb_s 1254145522Sdarrenr#define gr_recur gr_bits.grb_recur 1255145522Sdarrenr#define gr_A gr_bits.grb_A 1256145522Sdarrenr#define gr_ver gr_bits.grb_ver 1257145522Sdarrenr 1258153876Sguido/* 1259153876Sguido * GRE information tracked by "keep state" 1260153876Sguido */ 1261145522Sdarrenrtypedef struct greinfo { 1262255332Scy u_short gs_call[2]; 1263255332Scy u_short gs_flags; 1264255332Scy u_short gs_ptype; 1265145522Sdarrenr} greinfo_t; 1266145522Sdarrenr 1267145522Sdarrenr#define GRE_REV(x) ((ntohs(x) >> 13) & 7) 1268145522Sdarrenr 1269145522Sdarrenr 1270145522Sdarrenr/* 1271153876Sguido * Format of an Authentication header 1272153876Sguido */ 1273153876Sguidotypedef struct authhdr { 1274255332Scy u_char ah_next; 1275255332Scy u_char ah_plen; 1276255332Scy u_short ah_reserved; 1277255332Scy u_32_t ah_spi; 1278255332Scy u_32_t ah_seq; 1279153876Sguido /* Following the sequence number field is 0 or more bytes of */ 1280153876Sguido /* authentication data, as specified by ah_plen - RFC 2402. */ 1281153876Sguido} authhdr_t; 1282153876Sguido 1283153876Sguido 1284153876Sguido/* 1285145522Sdarrenr * Timeout tail queue list member 1286145522Sdarrenr */ 1287145522Sdarrenrtypedef struct ipftqent { 1288145522Sdarrenr struct ipftqent **tqe_pnext; 1289145522Sdarrenr struct ipftqent *tqe_next; 1290145522Sdarrenr struct ipftq *tqe_ifq; 1291255332Scy void *tqe_parent; /* pointer back to NAT/state struct */ 1292255332Scy u_32_t tqe_die; /* when this entriy is to die */ 1293255332Scy u_32_t tqe_touched; 1294255332Scy int tqe_flags; 1295255332Scy int tqe_state[2]; /* current state of this entry */ 1296145522Sdarrenr} ipftqent_t; 1297145522Sdarrenr 1298145522Sdarrenr#define TQE_RULEBASED 0x00000001 1299255332Scy#define TQE_DELETE 0x00000002 1300145522Sdarrenr 1301145522Sdarrenr 1302145522Sdarrenr/* 1303145522Sdarrenr * Timeout tail queue head for IPFilter 1304145522Sdarrenr */ 1305145522Sdarrenrtypedef struct ipftq { 1306145522Sdarrenr ipfmutex_t ifq_lock; 1307255332Scy u_int ifq_ttl; 1308145522Sdarrenr ipftqent_t *ifq_head; 1309145522Sdarrenr ipftqent_t **ifq_tail; 1310255332Scy struct ipftq *ifq_next; 1311255332Scy struct ipftq **ifq_pnext; 1312255332Scy int ifq_ref; 1313255332Scy u_int ifq_flags; 1314145522Sdarrenr} ipftq_t; 1315145522Sdarrenr 1316145522Sdarrenr#define IFQF_USER 0x01 /* User defined aging */ 1317145522Sdarrenr#define IFQF_DELETE 0x02 /* Marked for deletion */ 1318145522Sdarrenr#define IFQF_PROXY 0x04 /* Timeout queue in use by a proxy */ 1319145522Sdarrenr 1320255332Scy#define IPFTQ_INIT(x,y,z) do { \ 1321255332Scy (x)->ifq_ttl = (y); \ 1322255332Scy (x)->ifq_head = NULL; \ 1323255332Scy (x)->ifq_ref = 1; \ 1324255332Scy (x)->ifq_tail = &(x)->ifq_head; \ 1325255332Scy MUTEX_INIT(&(x)->ifq_lock, (z)); \ 1326255332Scy } while (0) 1327255332Scy 1328145522Sdarrenr#define IPF_HZ_MULT 1 1329145522Sdarrenr#define IPF_HZ_DIVIDE 2 /* How many times a second ipfilter */ 1330145522Sdarrenr /* checks its timeout queues. */ 1331145522Sdarrenr#define IPF_TTLVAL(x) (((x) / IPF_HZ_MULT) * IPF_HZ_DIVIDE) 1332145522Sdarrenr 1333255332Scytypedef int (*ipftq_delete_fn_t)(struct ipf_main_softc_s *, void *); 1334170268Sdarrenr 1335145522Sdarrenr 1336145522Sdarrenr/* 1337145522Sdarrenr * Object structure description. For passing through in ioctls. 1338145522Sdarrenr */ 1339145522Sdarrenrtypedef struct ipfobj { 1340255332Scy u_32_t ipfo_rev; /* IPFilter version number */ 1341255332Scy u_32_t ipfo_size; /* size of object at ipfo_ptr */ 1342255332Scy void *ipfo_ptr; /* pointer to object */ 1343255332Scy int ipfo_type; /* type of object being pointed to */ 1344255332Scy int ipfo_offset; /* bytes from ipfo_ptr where to start */ 1345255332Scy int ipfo_retval; /* return value */ 1346255332Scy u_char ipfo_xxxpad[28]; /* reserved for future use */ 1347145522Sdarrenr} ipfobj_t; 1348145522Sdarrenr 1349145522Sdarrenr#define IPFOBJ_FRENTRY 0 /* struct frentry */ 1350145522Sdarrenr#define IPFOBJ_IPFSTAT 1 /* struct friostat */ 1351145522Sdarrenr#define IPFOBJ_IPFINFO 2 /* struct fr_info */ 1352145522Sdarrenr#define IPFOBJ_AUTHSTAT 3 /* struct fr_authstat */ 1353145522Sdarrenr#define IPFOBJ_FRAGSTAT 4 /* struct ipfrstat */ 1354145522Sdarrenr#define IPFOBJ_IPNAT 5 /* struct ipnat */ 1355145522Sdarrenr#define IPFOBJ_NATSTAT 6 /* struct natstat */ 1356145522Sdarrenr#define IPFOBJ_STATESAVE 7 /* struct ipstate_save */ 1357145522Sdarrenr#define IPFOBJ_NATSAVE 8 /* struct nat_save */ 1358145522Sdarrenr#define IPFOBJ_NATLOOKUP 9 /* struct natlookup */ 1359145522Sdarrenr#define IPFOBJ_IPSTATE 10 /* struct ipstate */ 1360145522Sdarrenr#define IPFOBJ_STATESTAT 11 /* struct ips_stat */ 1361145522Sdarrenr#define IPFOBJ_FRAUTH 12 /* struct frauth */ 1362145522Sdarrenr#define IPFOBJ_TUNEABLE 13 /* struct ipftune */ 1363170268Sdarrenr#define IPFOBJ_NAT 14 /* struct nat */ 1364170268Sdarrenr#define IPFOBJ_IPFITER 15 /* struct ipfruleiter */ 1365170268Sdarrenr#define IPFOBJ_GENITER 16 /* struct ipfgeniter */ 1366170268Sdarrenr#define IPFOBJ_GTABLE 17 /* struct ipftable */ 1367170268Sdarrenr#define IPFOBJ_LOOKUPITER 18 /* struct ipflookupiter */ 1368255332Scy#define IPFOBJ_STATETQTAB 19 /* struct ipftq * NSTATES */ 1369255332Scy#define IPFOBJ_IPFEXPR 20 1370255332Scy#define IPFOBJ_PROXYCTL 21 /* strct ap_ctl */ 1371255332Scy#define IPFOBJ_FRIPF 22 /* structfripf */ 1372255332Scy#define IPFOBJ_COUNT 23 /* How many #defines are above this? */ 1373145522Sdarrenr 1374145522Sdarrenr 1375145522Sdarrenrtypedef union ipftunevalptr { 1376255332Scy void *ipftp_void; 1377255332Scy u_long *ipftp_long; 1378255332Scy u_int *ipftp_int; 1379255332Scy u_short *ipftp_short; 1380255332Scy u_char *ipftp_char; 1381255332Scy u_long ipftp_offset; 1382145522Sdarrenr} ipftunevalptr_t; 1383145522Sdarrenr 1384255332Scytypedef union ipftuneval { 1385255332Scy u_long ipftu_long; 1386255332Scy u_int ipftu_int; 1387255332Scy u_short ipftu_short; 1388255332Scy u_char ipftu_char; 1389255332Scy} ipftuneval_t; 1390255332Scy 1391255332Scystruct ipftuneable; 1392255332Scytypedef int (* ipftunefunc_t) __P((struct ipf_main_softc_s *, struct ipftuneable *, ipftuneval_t *)); 1393255332Scy 1394145522Sdarrenrtypedef struct ipftuneable { 1395145522Sdarrenr ipftunevalptr_t ipft_una; 1396170268Sdarrenr const char *ipft_name; 1397145522Sdarrenr u_long ipft_min; 1398145522Sdarrenr u_long ipft_max; 1399145522Sdarrenr int ipft_sz; 1400145522Sdarrenr int ipft_flags; 1401145522Sdarrenr struct ipftuneable *ipft_next; 1402255332Scy ipftunefunc_t ipft_func; 1403145522Sdarrenr} ipftuneable_t; 1404145522Sdarrenr 1405145522Sdarrenr#define ipft_addr ipft_una.ipftp_void 1406145522Sdarrenr#define ipft_plong ipft_una.ipftp_long 1407145522Sdarrenr#define ipft_pint ipft_una.ipftp_int 1408145522Sdarrenr#define ipft_pshort ipft_una.ipftp_short 1409145522Sdarrenr#define ipft_pchar ipft_una.ipftp_char 1410145522Sdarrenr 1411145522Sdarrenr#define IPFT_RDONLY 1 /* read-only */ 1412145522Sdarrenr#define IPFT_WRDISABLED 2 /* write when disabled only */ 1413145522Sdarrenr 1414145522Sdarrenrtypedef struct ipftune { 1415145522Sdarrenr void *ipft_cookie; 1416145522Sdarrenr ipftuneval_t ipft_un; 1417145522Sdarrenr u_long ipft_min; 1418145522Sdarrenr u_long ipft_max; 1419145522Sdarrenr int ipft_sz; 1420145522Sdarrenr int ipft_flags; 1421145522Sdarrenr char ipft_name[80]; 1422145522Sdarrenr} ipftune_t; 1423145522Sdarrenr 1424145522Sdarrenr#define ipft_vlong ipft_un.ipftu_long 1425145522Sdarrenr#define ipft_vint ipft_un.ipftu_int 1426145522Sdarrenr#define ipft_vshort ipft_un.ipftu_short 1427145522Sdarrenr#define ipft_vchar ipft_un.ipftu_char 1428145522Sdarrenr 1429170268Sdarrenr/* 1430255332Scy * Hash table header 1431255332Scy */ 1432255332Scy#define IPFHASH(x,y) typedef struct { \ 1433255332Scy ipfrwlock_t ipfh_lock; \ 1434255332Scy struct x *ipfh_head; \ 1435255332Scy } y 1436255332Scy 1437255332Scy/* 1438255332Scy** HPUX Port 1439255332Scy*/ 1440255332Scy#ifdef __hpux 1441255332Scy/* HP-UX locking sequence deadlock detection module lock MAJOR ID */ 1442255332Scy# define IPF_SMAJ 0 /* temp assignment XXX, not critical */ 1443255332Scy#endif 1444255332Scy 1445255332Scy#if !defined(CDEV_MAJOR) && defined (__FreeBSD_version) && \ 1446255332Scy (__FreeBSD_version >= 220000) 1447255332Scy# define CDEV_MAJOR 79 1448255332Scy#endif 1449255332Scy 1450255332Scy/* 1451255332Scy * Post NetBSD 1.2 has the PFIL interface for packet filters. This turns 1452255332Scy * on those hooks. We don't need any special mods in non-IP Filter code 1453255332Scy * with this! 1454255332Scy */ 1455255332Scy#if (defined(NetBSD) && (NetBSD > 199609) && (NetBSD <= 1991011)) || \ 1456255332Scy (defined(NetBSD1_2) && NetBSD1_2 > 1) || \ 1457255332Scy (defined(__FreeBSD__) && (__FreeBSD_version >= 500043)) 1458255332Scy# if (defined(NetBSD) && NetBSD >= 199905) 1459255332Scy# define PFIL_HOOKS 1460255332Scy# endif 1461255332Scy# ifdef PFIL_HOOKS 1462255332Scy# define NETBSD_PF 1463255332Scy# endif 1464255332Scy#endif 1465255332Scy 1466255332Scy#ifdef _KERNEL 1467255332Scy# define FR_VERBOSE(verb_pr) 1468255332Scy# define FR_DEBUG(verb_pr) 1469255332Scy#else 1470255332Scyextern void ipfkdebug __P((char *, ...)); 1471255332Scyextern void ipfkverbose __P((char *, ...)); 1472255332Scy# define FR_VERBOSE(verb_pr) ipfkverbose verb_pr 1473255332Scy# define FR_DEBUG(verb_pr) ipfkdebug verb_pr 1474255332Scy#endif 1475255332Scy 1476255332Scy/* 1477170268Sdarrenr * 1478170268Sdarrenr */ 1479170268Sdarrenrtypedef struct ipfruleiter { 1480170268Sdarrenr int iri_inout; 1481170268Sdarrenr char iri_group[FR_GROUPLEN]; 1482170268Sdarrenr int iri_active; 1483170268Sdarrenr int iri_nrules; 1484255332Scy int iri_v; /* No longer used (compatibility) */ 1485170268Sdarrenr frentry_t *iri_rule; 1486170268Sdarrenr} ipfruleiter_t; 1487145522Sdarrenr 1488145522Sdarrenr/* 1489170268Sdarrenr * Values for iri_inout 1490170268Sdarrenr */ 1491170268Sdarrenr#define F_IN 0 1492170268Sdarrenr#define F_OUT 1 1493170268Sdarrenr#define F_ACIN 2 1494170268Sdarrenr#define F_ACOUT 3 1495170268Sdarrenr 1496170268Sdarrenr 1497170268Sdarrenrtypedef struct ipfgeniter { 1498170268Sdarrenr int igi_type; 1499170268Sdarrenr int igi_nitems; 1500170268Sdarrenr void *igi_data; 1501170268Sdarrenr} ipfgeniter_t; 1502170268Sdarrenr 1503170268Sdarrenr#define IPFGENITER_IPF 0 1504170268Sdarrenr#define IPFGENITER_NAT 1 1505170268Sdarrenr#define IPFGENITER_IPNAT 2 1506170268Sdarrenr#define IPFGENITER_FRAG 3 1507170268Sdarrenr#define IPFGENITER_AUTH 4 1508170268Sdarrenr#define IPFGENITER_STATE 5 1509170268Sdarrenr#define IPFGENITER_NATFRAG 6 1510170268Sdarrenr#define IPFGENITER_HOSTMAP 7 1511170268Sdarrenr#define IPFGENITER_LOOKUP 8 1512170268Sdarrenr 1513170268Sdarrenrtypedef struct ipftable { 1514170268Sdarrenr int ita_type; 1515170268Sdarrenr void *ita_table; 1516170268Sdarrenr} ipftable_t; 1517170268Sdarrenr 1518170268Sdarrenr#define IPFTABLE_BUCKETS 1 1519172776Sdarrenr#define IPFTABLE_BUCKETS_NATIN 2 1520172776Sdarrenr#define IPFTABLE_BUCKETS_NATOUT 3 1521170268Sdarrenr 1522170268Sdarrenr 1523255332Scytypedef struct ipf_v4_masktab_s { 1524255332Scy u_32_t imt4_active[33]; 1525255332Scy int imt4_masks[33]; 1526255332Scy int imt4_max; 1527255332Scy} ipf_v4_masktab_t; 1528255332Scy 1529255332Scytypedef struct ipf_v6_masktab_s { 1530255332Scy i6addr_t imt6_active[129]; 1531255332Scy int imt6_masks[129]; 1532255332Scy int imt6_max; 1533255332Scy} ipf_v6_masktab_t; 1534255332Scy 1535255332Scy 1536170268Sdarrenr/* 1537170268Sdarrenr * 1538170268Sdarrenr */ 1539170268Sdarrenrtypedef struct ipftoken { 1540170268Sdarrenr struct ipftoken *ipt_next; 1541170268Sdarrenr struct ipftoken **ipt_pnext; 1542170268Sdarrenr void *ipt_ctx; 1543170268Sdarrenr void *ipt_data; 1544170268Sdarrenr u_long ipt_die; 1545170268Sdarrenr int ipt_type; 1546170268Sdarrenr int ipt_uid; 1547170268Sdarrenr int ipt_subtype; 1548255332Scy int ipt_ref; 1549255332Scy int ipt_complete; 1550170268Sdarrenr} ipftoken_t; 1551170268Sdarrenr 1552170268Sdarrenr 1553170268Sdarrenr/* 1554255332Scy * 1555255332Scy */ 1556255332Scytypedef struct ipfexp { 1557255332Scy int ipfe_cmd; 1558255332Scy int ipfe_not; 1559255332Scy int ipfe_narg; 1560255332Scy int ipfe_size; 1561255332Scy int ipfe_arg0[1]; 1562255332Scy} ipfexp_t; 1563145522Sdarrenr 156453642Sguido/* 1565255332Scy * Currently support commands (ipfe_cmd) 1566255332Scy * 32bits is split up follows: 1567255332Scy * aabbcccc 1568255332Scy * aa = 0 = packet matching, 1 = meta data matching 1569255332Scy * bb = IP protocol number 1570255332Scy * cccc = command 157153642Sguido */ 1572255332Scy#define IPF_EXP_IP_PR 0x00000001 1573255332Scy#define IPF_EXP_IP_ADDR 0x00000002 1574255332Scy#define IPF_EXP_IP_SRCADDR 0x00000003 1575255332Scy#define IPF_EXP_IP_DSTADDR 0x00000004 1576255332Scy#define IPF_EXP_IP6_ADDR 0x00000005 1577255332Scy#define IPF_EXP_IP6_SRCADDR 0x00000006 1578255332Scy#define IPF_EXP_IP6_DSTADDR 0x00000007 1579255332Scy#define IPF_EXP_TCP_FLAGS 0x00060001 1580255332Scy#define IPF_EXP_TCP_PORT 0x00060002 1581255332Scy#define IPF_EXP_TCP_SPORT 0x00060003 1582255332Scy#define IPF_EXP_TCP_DPORT 0x00060004 1583255332Scy#define IPF_EXP_UDP_PORT 0x00110002 1584255332Scy#define IPF_EXP_UDP_SPORT 0x00110003 1585255332Scy#define IPF_EXP_UDP_DPORT 0x00110004 1586255332Scy#define IPF_EXP_IDLE_GT 0x01000001 1587255332Scy#define IPF_EXP_TCP_STATE 0x01060002 1588255332Scy#define IPF_EXP_END 0xffffffff 1589255332Scy 1590255332Scy#define ONE_DAY IPF_TTLVAL(1 * 86400) /* 1 day */ 1591255332Scy#define FIVE_DAYS (5 * ONE_DAY) 1592255332Scy 1593255332Scytypedef struct ipf_main_softc_s { 1594255332Scy struct ipf_main_softc_s *ipf_next; 1595255332Scy ipfmutex_t ipf_rw; 1596255332Scy ipfmutex_t ipf_timeoutlock; 1597255332Scy ipfrwlock_t ipf_mutex; 1598255332Scy ipfrwlock_t ipf_frag; 1599255332Scy ipfrwlock_t ipf_global; 1600255332Scy ipfrwlock_t ipf_tokens; 1601255332Scy ipfrwlock_t ipf_state; 1602255332Scy ipfrwlock_t ipf_nat; 1603255332Scy ipfrwlock_t ipf_natfrag; 1604255332Scy ipfrwlock_t ipf_poolrw; 1605255332Scy int ipf_dynamic_softc; 1606255332Scy int ipf_refcnt; 1607255332Scy int ipf_running; 1608255332Scy int ipf_flags; 1609255332Scy int ipf_active; 1610255332Scy int ipf_control_forwarding; 1611255332Scy int ipf_update_ipid; 1612255332Scy int ipf_chksrc; /* causes a system crash if enabled */ 1613255332Scy int ipf_pass; 1614255332Scy int ipf_minttl; 1615255332Scy int ipf_icmpminfragmtu; 1616255332Scy int ipf_interror; /* Should be in a struct that is per */ 1617255332Scy /* thread or process. Does not belong */ 1618255332Scy /* here but there's a lot more work */ 1619255332Scy /* in doing that properly. For now, */ 1620255332Scy /* it is squatting. */ 1621255332Scy u_int ipf_tcpidletimeout; 1622255332Scy u_int ipf_tcpclosewait; 1623255332Scy u_int ipf_tcplastack; 1624255332Scy u_int ipf_tcptimewait; 1625255332Scy u_int ipf_tcptimeout; 1626255332Scy u_int ipf_tcpsynsent; 1627255332Scy u_int ipf_tcpsynrecv; 1628255332Scy u_int ipf_tcpclosed; 1629255332Scy u_int ipf_tcphalfclosed; 1630255332Scy u_int ipf_udptimeout; 1631255332Scy u_int ipf_udpacktimeout; 1632255332Scy u_int ipf_icmptimeout; 1633255332Scy u_int ipf_icmpacktimeout; 1634255332Scy u_int ipf_iptimeout; 1635255332Scy u_long ipf_ticks; 1636255332Scy u_long ipf_userifqs; 1637255332Scy u_long ipf_rb_no_mem; 1638255332Scy u_long ipf_rb_node_max; 1639255332Scy u_long ipf_frouteok[2]; 1640255332Scy ipftuneable_t *ipf_tuners; 1641255332Scy void *ipf_frag_soft; 1642255332Scy void *ipf_nat_soft; 1643255332Scy void *ipf_state_soft; 1644255332Scy void *ipf_auth_soft; 1645255332Scy void *ipf_proxy_soft; 1646255332Scy void *ipf_sync_soft; 1647255332Scy void *ipf_lookup_soft; 1648255332Scy void *ipf_log_soft; 1649255332Scy struct frgroup *ipf_groups[IPL_LOGSIZE][2]; 1650255332Scy frentry_t *ipf_rules[2][2]; 1651255332Scy frentry_t *ipf_acct[2][2]; 1652255332Scy frentry_t *ipf_rule_explist[2]; 1653255332Scy ipftoken_t *ipf_token_head; 1654255332Scy ipftoken_t **ipf_token_tail; 1655255332Scy#if defined(__FreeBSD_version) && (__FreeBSD_version >= 300000) && \ 1656255332Scy defined(_KERNEL) 1657255755Scy struct callout ipf_slow_ch; 1658255332Scy#endif 1659255332Scy#if defined(linux) && defined(_KERNEL) 1660255332Scy struct timer_list ipf_timer; 1661255332Scy#endif 1662255332Scy#if NETBSD_GE_REV(104040000) 1663255332Scy struct callout ipf_slow_ch; 1664255332Scy#endif 1665255332Scy#if SOLARIS 1666255332Scy# if SOLARIS2 >= 7 1667255332Scy timeout_id_t ipf_slow_ch; 1668255332Scy# else 1669255332Scy int ipf_slow_ch; 167053642Sguido# endif 1671255332Scy#endif 1672255332Scy#if defined(_KERNEL) 1673255332Scy# if SOLARIS 1674255332Scy struct pollhead ipf_poll_head[IPL_LOGSIZE]; 1675255332Scy void *ipf_dip; 1676255332Scy# if defined(INSTANCES) 1677255332Scy int ipf_get_loopback; 1678255332Scy u_long ipf_idnum; 1679255332Scy net_handle_t ipf_nd_v4; 1680255332Scy net_handle_t ipf_nd_v6; 1681255332Scy hook_t *ipf_hk_v4_in; 1682255332Scy hook_t *ipf_hk_v4_out; 1683255332Scy hook_t *ipf_hk_v4_nic; 1684255332Scy hook_t *ipf_hk_v6_in; 1685255332Scy hook_t *ipf_hk_v6_out; 1686255332Scy hook_t *ipf_hk_v6_nic; 1687255332Scy hook_t *ipf_hk_loop_v4_in; 1688255332Scy hook_t *ipf_hk_loop_v4_out; 1689255332Scy hook_t *ipf_hk_loop_v6_in; 1690255332Scy hook_t *ipf_hk_loop_v6_out; 1691255332Scy# endif 1692255332Scy# else 1693255332Scy# if defined(linux) && defined(_KERNEL) 1694255332Scy struct poll_table_struct ipf_selwait[IPL_LOGSIZE]; 1695255332Scy wait_queue_head_t iplh_linux[IPL_LOGSIZE]; 1696255332Scy# else 1697255332Scy struct selinfo ipf_selwait[IPL_LOGSIZE]; 1698255332Scy# endif 169953642Sguido# endif 170053642Sguido#endif 1701255332Scy void *ipf_slow; 1702255332Scy ipf_statistics_t ipf_stats[2]; 1703255332Scy u_char ipf_iss_secret[32]; 1704255332Scy u_short ipf_ip_id; 1705255332Scy} ipf_main_softc_t; 170653642Sguido 1707255332Scy#define IPFERROR(_e) do { softc->ipf_interror = (_e); \ 1708255332Scy DT1(user_error, int, _e); \ 1709255332Scy } while (0) 1710161356Sguido 171153642Sguido#ifndef _KERNEL 1712255332Scyextern int ipf_check __P((void *, struct ip *, int, void *, int, mb_t **)); 1713255332Scyextern int (*ipf_checkp) __P((ip_t *, int, void *, int, mb_t **)); 171460851Sdarrenrextern struct ifnet *get_unit __P((char *, int)); 1715145522Sdarrenrextern char *get_ifname __P((struct ifnet *)); 1716255332Scyextern int ipfioctl __P((ipf_main_softc_t *, int, ioctlcmd_t, 1717255332Scy caddr_t, int)); 1718145522Sdarrenrextern void m_freem __P((mb_t *)); 1719255332Scyextern size_t msgdsize __P((mb_t *)); 1720161356Sguidoextern int bcopywrap __P((void *, void *, size_t)); 172153642Sguido#else /* #ifndef _KERNEL */ 172253642Sguido# if defined(__NetBSD__) && defined(PFIL_HOOKS) 172353642Sguidoextern void ipfilterattach __P((int)); 172453642Sguido# endif 172553642Sguidoextern int ipl_enable __P((void)); 172653642Sguidoextern int ipl_disable __P((void)); 1727145522Sdarrenr# ifdef MENTAT 1728255332Scyextern int ipf_check __P((void *, struct ip *, int, void *, int, void *, 1729255332Scy mblk_t **)); 1730145522Sdarrenr# if SOLARIS 1731255332Scyextern void ipf_prependmbt(fr_info_t *, mblk_t *); 1732145522Sdarrenr# if SOLARIS2 >= 7 1733255332Scyextern int ipfioctl __P((dev_t, int, intptr_t, int, cred_t *, int *)); 1734145522Sdarrenr# else 1735255332Scyextern int ipfioctl __P((dev_t, int, int *, int, cred_t *, int *)); 1736145522Sdarrenr# endif 1737145522Sdarrenr# endif 1738145522Sdarrenr# ifdef __hpux 1739255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int)); 1740255332Scyextern int ipf_select __P((dev_t, int)); 1741145522Sdarrenr# endif 1742255332Scyextern int ipf_qout __P((queue_t *, mblk_t *)); 1743145522Sdarrenr# else /* MENTAT */ 1744255332Scyextern int ipf_check __P((void *, struct ip *, int, void *, int, mb_t **)); 174553642Sguidoextern int (*fr_checkp) __P((ip_t *, int, void *, int, mb_t **)); 174653642Sguidoextern size_t mbufchainlen __P((mb_t *)); 174753642Sguido# ifdef __sgi 174853642Sguido# include <sys/cred.h> 1749255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int, cred_t *, int *)); 175053642Sguidoextern int ipfilter_sgi_attach __P((void)); 175153642Sguidoextern void ipfilter_sgi_detach __P((void)); 175253642Sguidoextern void ipfilter_sgi_intfsync __P((void)); 175353642Sguido# else 175453642Sguido# ifdef IPFILTER_LKM 1755255332Scyextern int ipf_identify __P((char *)); 175653642Sguido# endif 1757255332Scy# if BSDOS_GE_REV(199510) || FREEBSD_GE_REV(220000) || \ 1758255332Scy (defined(NetBSD) && (NetBSD >= 199511)) || defined(__OpenBSD__) 1759255332Scy# if defined(__NetBSD__) || BSDOS_GE_REV(199701) || \ 1760255332Scy defined(__OpenBSD__) || FREEBSD_GE_REV(300000) 1761145522Sdarrenr# if (__FreeBSD_version >= 500024) 1762145522Sdarrenr# if (__FreeBSD_version >= 502116) 1763255332Scyextern int ipfioctl __P((struct cdev*, u_long, caddr_t, int, struct thread *)); 1764145522Sdarrenr# else 1765255332Scyextern int ipfioctl __P((dev_t, u_long, caddr_t, int, struct thread *)); 1766145522Sdarrenr# endif /* __FreeBSD_version >= 502116 */ 1767145522Sdarrenr# else 1768255332Scy# if NETBSD_GE_REV(499001000) 1769255332Scyextern int ipfioctl __P((dev_t, u_long, void *, int, struct lwp *)); 1770170268Sdarrenr# else 1771255332Scy# if NETBSD_GE_REV(399001400) 1772255332Scyextern int ipfioctl __P((dev_t, u_long, caddr_t, int, struct lwp *)); 1773170268Sdarrenr# else 1774255332Scyextern int ipfioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 1775170268Sdarrenr# endif 1776170268Sdarrenr# endif 1777145522Sdarrenr# endif /* __FreeBSD_version >= 500024 */ 177853642Sguido# else 1779255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int, struct proc *)); 178053642Sguido# endif 178153642Sguido# else 1782145522Sdarrenr# ifdef linux 1783255332Scyextern int ipfioctl __P((struct inode *, struct file *, u_int, u_long)); 1784145522Sdarrenr# else 1785255332Scyextern int ipfioctl __P((dev_t, int, caddr_t, int)); 1786145522Sdarrenr# endif 178753642Sguido# endif /* (_BSDI_VERSION >= 199510) */ 178853642Sguido# endif /* __ sgi */ 1789145522Sdarrenr# endif /* MENTAT */ 1790145522Sdarrenr 1791172776Sdarrenr# if defined(__FreeBSD_version) 1792172776Sdarrenrextern int ipf_pfil_hook __P((void)); 1793172776Sdarrenrextern int ipf_pfil_unhook __P((void)); 1794172776Sdarrenrextern void ipf_event_reg __P((void)); 1795172776Sdarrenrextern void ipf_event_dereg __P((void)); 1796172776Sdarrenr# endif 1797172776Sdarrenr 1798255332Scy# if defined(INSTANCES) 1799255332Scyextern ipf_main_softc_t *ipf_find_softc __P((u_long)); 1800255332Scyextern int ipf_set_loopback __P((ipf_main_softc_t *, ipftuneable_t *, 1801255332Scy ipftuneval_t *)); 1802255332Scy# endif 1803255332Scy 180453642Sguido#endif /* #ifndef _KERNEL */ 180553642Sguido 1806161356Sguidoextern char *memstr __P((const char *, char *, size_t, size_t)); 1807145522Sdarrenrextern int count4bits __P((u_32_t)); 1808255332Scy#ifdef USE_INET6 1809255332Scyextern int count6bits __P((u_32_t *)); 1810255332Scy#endif 1811255332Scyextern int frrequest __P((ipf_main_softc_t *, int, ioctlcmd_t, caddr_t, 1812255332Scy int, int)); 1813145522Sdarrenrextern char *getifname __P((struct ifnet *)); 1814255332Scyextern int ipfattach __P((ipf_main_softc_t *)); 1815255332Scyextern int ipfdetach __P((ipf_main_softc_t *)); 181653642Sguidoextern u_short ipf_cksum __P((u_short *, int)); 1817255332Scyextern int copyinptr __P((ipf_main_softc_t *, void *, void *, size_t)); 1818255332Scyextern int copyoutptr __P((ipf_main_softc_t *, void *, void *, size_t)); 1819255332Scyextern int ipf_fastroute __P((mb_t *, mb_t **, fr_info_t *, frdest_t *)); 1820255332Scyextern int ipf_inject __P((fr_info_t *, mb_t *)); 1821255332Scyextern int ipf_inobj __P((ipf_main_softc_t *, void *, ipfobj_t *, 1822255332Scy void *, int)); 1823255332Scyextern int ipf_inobjsz __P((ipf_main_softc_t *, void *, void *, 1824255332Scy int , int)); 1825255332Scyextern int ipf_ioctlswitch __P((ipf_main_softc_t *, int, void *, 1826255332Scy ioctlcmd_t, int, int, void *)); 1827255332Scyextern int ipf_ipf_ioctl __P((ipf_main_softc_t *, caddr_t, ioctlcmd_t, 1828255332Scy int, int, void *)); 1829255332Scyextern int ipf_ipftune __P((ipf_main_softc_t *, ioctlcmd_t, void *)); 1830255332Scyextern int ipf_matcharray_load __P((ipf_main_softc_t *, caddr_t, 1831255332Scy ipfobj_t *, int **)); 1832255332Scyextern int ipf_matcharray_verify __P((int *, int)); 1833255332Scyextern int ipf_outobj __P((ipf_main_softc_t *, void *, void *, int)); 1834255332Scyextern int ipf_outobjk __P((ipf_main_softc_t *, ipfobj_t *, void *)); 1835255332Scyextern int ipf_outobjsz __P((ipf_main_softc_t *, void *, void *, 1836255332Scy int, int)); 1837255332Scyextern void *ipf_pullup __P((mb_t *, fr_info_t *, int)); 1838255332Scyextern int ipf_resolvedest __P((ipf_main_softc_t *, char *, 1839255332Scy struct frdest *, int)); 1840255332Scyextern int ipf_resolvefunc __P((ipf_main_softc_t *, void *)); 1841255332Scyextern void *ipf_resolvenic __P((ipf_main_softc_t *, char *, int)); 1842255332Scyextern int ipf_send_icmp_err __P((int, fr_info_t *, int)); 1843255332Scyextern int ipf_send_reset __P((fr_info_t *)); 1844255332Scy#if (defined(__FreeBSD_version) && (__FreeBSD_version < 501000)) || \ 1845255332Scy !defined(_KERNEL) || defined(linux) 1846145522Sdarrenr#endif 1847255332Scyextern void ipf_apply_timeout __P((ipftq_t *, u_int)); 1848255332Scyextern ipftq_t *ipf_addtimeoutqueue __P((ipf_main_softc_t *, ipftq_t **, 1849255332Scy u_int)); 1850255332Scyextern void ipf_deletequeueentry __P((ipftqent_t *)); 1851255332Scyextern int ipf_deletetimeoutqueue __P((ipftq_t *)); 1852255332Scyextern void ipf_freetimeoutqueue __P((ipf_main_softc_t *, ipftq_t *)); 1853255332Scyextern void ipf_movequeue __P((u_long, ipftqent_t *, ipftq_t *, 1854255332Scy ipftq_t *)); 1855255332Scyextern void ipf_queueappend __P((u_long, ipftqent_t *, ipftq_t *, void *)); 1856255332Scyextern void ipf_queueback __P((u_long, ipftqent_t *)); 1857255332Scyextern int ipf_queueflush __P((ipf_main_softc_t *, ipftq_delete_fn_t, 1858255332Scy ipftq_t *, ipftq_t *, u_int *, int, int)); 1859255332Scyextern void ipf_queuefront __P((ipftqent_t *)); 1860255332Scyextern int ipf_settimeout_tcp __P((ipftuneable_t *, ipftuneval_t *, 1861255332Scy ipftq_t *)); 1862255332Scyextern int ipf_checkv4sum __P((fr_info_t *)); 1863255332Scyextern int ipf_checkl4sum __P((fr_info_t *)); 1864255332Scyextern int ipf_ifpfillv4addr __P((int, struct sockaddr_in *, 1865145522Sdarrenr struct sockaddr_in *, struct in_addr *, 1866145522Sdarrenr struct in_addr *)); 1867255332Scyextern int ipf_coalesce __P((fr_info_t *)); 1868145522Sdarrenr#ifdef USE_INET6 1869255332Scyextern int ipf_checkv6sum __P((fr_info_t *)); 1870255332Scyextern int ipf_ifpfillv6addr __P((int, struct sockaddr_in6 *, 1871255332Scy struct sockaddr_in6 *, i6addr_t *, 1872255332Scy i6addr_t *)); 1873145522Sdarrenr#endif 187460851Sdarrenr 1875255332Scyextern int ipf_tune_add __P((ipf_main_softc_t *, ipftuneable_t *)); 1876255332Scyextern int ipf_tune_add_array __P((ipf_main_softc_t *, ipftuneable_t *)); 1877255332Scyextern int ipf_tune_del __P((ipf_main_softc_t *, ipftuneable_t *)); 1878255332Scyextern int ipf_tune_del_array __P((ipf_main_softc_t *, ipftuneable_t *)); 1879255332Scyextern int ipf_tune_array_link __P((ipf_main_softc_t *, ipftuneable_t *)); 1880255332Scyextern int ipf_tune_array_unlink __P((ipf_main_softc_t *, 1881255332Scy ipftuneable_t *)); 1882255332Scyextern ipftuneable_t *ipf_tune_array_copy __P((void *, size_t, 1883255332Scy ipftuneable_t *)); 1884145522Sdarrenr 1885255332Scyextern int ipf_pr_pullup __P((fr_info_t *, int)); 1886145522Sdarrenr 1887255332Scyextern int ipf_flush __P((ipf_main_softc_t *, minor_t, int)); 1888255332Scyextern frgroup_t *ipf_group_add __P((ipf_main_softc_t *, char *, void *, 1889255332Scy u_32_t, minor_t, int)); 1890255332Scyextern void ipf_group_del __P((ipf_main_softc_t *, frgroup_t *, 1891255332Scy frentry_t *)); 1892255332Scyextern int ipf_derefrule __P((ipf_main_softc_t *, frentry_t **)); 1893255332Scyextern frgroup_t *ipf_findgroup __P((ipf_main_softc_t *, char *, minor_t, 1894255332Scy int, frgroup_t ***)); 189592685Sdarrenr 1896255332Scyextern int ipf_log_init __P((void)); 1897255332Scyextern int ipf_log_bytesused __P((ipf_main_softc_t *, int)); 1898255332Scyextern int ipf_log_canread __P((ipf_main_softc_t *, int)); 1899255332Scyextern int ipf_log_clear __P((ipf_main_softc_t *, minor_t)); 1900255332Scyextern u_long ipf_log_failures __P((ipf_main_softc_t *, int)); 1901255332Scyextern int ipf_log_read __P((ipf_main_softc_t *, minor_t, uio_t *)); 1902255332Scyextern int ipf_log_items __P((ipf_main_softc_t *, int, fr_info_t *, 1903255332Scy void **, size_t *, int *, int)); 1904255332Scyextern u_long ipf_log_logok __P((ipf_main_softc_t *, int)); 1905255332Scyextern void ipf_log_unload __P((ipf_main_softc_t *)); 1906255332Scyextern int ipf_log_pkt __P((fr_info_t *, u_int)); 1907255332Scy 1908255332Scyextern frentry_t *ipf_acctpkt __P((fr_info_t *, u_32_t *)); 1909255332Scyextern u_short fr_cksum __P((fr_info_t *, ip_t *, int, void *)); 1910255332Scyextern void ipf_deinitialise __P((ipf_main_softc_t *)); 1911255332Scyextern int ipf_deliverlocal __P((ipf_main_softc_t *, int, void *, 1912255332Scy i6addr_t *)); 1913255332Scyextern frentry_t *ipf_dstgrpmap __P((fr_info_t *, u_32_t *)); 1914255332Scyextern void ipf_fixskip __P((frentry_t **, frentry_t *, int)); 1915255332Scyextern void ipf_forgetifp __P((ipf_main_softc_t *, void *)); 1916255332Scyextern frentry_t *ipf_getrulen __P((ipf_main_softc_t *, int, char *, 1917255332Scy u_32_t)); 1918255332Scyextern int ipf_ifpaddr __P((ipf_main_softc_t *, int, int, void *, 1919255332Scy i6addr_t *, i6addr_t *)); 1920255332Scyextern void ipf_inet_mask_add __P((int, ipf_v4_masktab_t *)); 1921255332Scyextern void ipf_inet_mask_del __P((int, ipf_v4_masktab_t *)); 1922255332Scy#ifdef USE_INET6 1923255332Scyextern void ipf_inet6_mask_add __P((int, i6addr_t *, 1924255332Scy ipf_v6_masktab_t *)); 1925255332Scyextern void ipf_inet6_mask_del __P((int, i6addr_t *, 1926255332Scy ipf_v6_masktab_t *)); 1927180778Sdarrenr#endif 1928255332Scyextern int ipf_initialise __P((void)); 1929255332Scyextern int ipf_lock __P((caddr_t, int *)); 1930255332Scyextern int ipf_makefrip __P((int, ip_t *, fr_info_t *)); 1931255332Scyextern int ipf_matchtag __P((ipftag_t *, ipftag_t *)); 1932255332Scyextern int ipf_matchicmpqueryreply __P((int, icmpinfo_t *, 1933255332Scy struct icmp *, int)); 1934255332Scyextern u_32_t ipf_newisn __P((fr_info_t *)); 1935255332Scyextern u_short ipf_nextipid __P((fr_info_t *)); 1936255332Scyextern u_int ipf_pcksum __P((fr_info_t *, int, u_int)); 1937255332Scyextern void ipf_rule_expire __P((ipf_main_softc_t *)); 1938255332Scyextern int ipf_scanlist __P((fr_info_t *, u_32_t)); 1939255332Scyextern frentry_t *ipf_srcgrpmap __P((fr_info_t *, u_32_t *)); 1940255332Scyextern int ipf_tcpudpchk __P((fr_ip_t *, frtuc_t *)); 1941255332Scyextern int ipf_verifysrc __P((fr_info_t *fin)); 1942255332Scyextern int ipf_zerostats __P((ipf_main_softc_t *, char *)); 1943255332Scyextern int ipf_getnextrule __P((ipf_main_softc_t *, ipftoken_t *, 1944255332Scy void *)); 1945255332Scyextern int ipf_sync __P((ipf_main_softc_t *, void *)); 1946255332Scyextern int ipf_token_deref __P((ipf_main_softc_t *, ipftoken_t *)); 1947255332Scyextern void ipf_token_expire __P((ipf_main_softc_t *)); 1948255332Scyextern ipftoken_t *ipf_token_find __P((ipf_main_softc_t *, int, int, 1949255332Scy void *)); 1950255332Scyextern int ipf_token_del __P((ipf_main_softc_t *, int, int, 1951255332Scy void *)); 1952255332Scyextern void ipf_token_mark_complete __P((ipftoken_t *)); 1953255332Scyextern int ipf_genericiter __P((ipf_main_softc_t *, void *, 1954255332Scy int, void *)); 1955255332Scy#ifdef IPFILTER_LOOKUP 1956255332Scyextern void *ipf_resolvelookup __P((int, u_int, u_int, 1957255332Scy lookupfunc_t *)); 1958180778Sdarrenr#endif 1959255332Scyextern u_32_t ipf_random __P((void)); 196060851Sdarrenr 1961255332Scyextern int ipf_main_load __P((void)); 1962255332Scyextern void *ipf_main_soft_create __P((void *)); 1963255332Scyextern void ipf_main_soft_destroy __P((ipf_main_softc_t *)); 1964255332Scyextern int ipf_main_soft_init __P((ipf_main_softc_t *)); 1965255332Scyextern int ipf_main_soft_fini __P((ipf_main_softc_t *)); 1966255332Scyextern int ipf_main_unload __P((void)); 1967255332Scyextern int ipf_load_all __P((void)); 1968255332Scyextern int ipf_unload_all __P((void)); 1969255332Scyextern void ipf_destroy_all __P((ipf_main_softc_t *)); 1970255332Scyextern ipf_main_softc_t *ipf_create_all __P((void *)); 1971255332Scyextern int ipf_init_all __P((ipf_main_softc_t *)); 1972255332Scyextern int ipf_fini_all __P((ipf_main_softc_t *)); 1973255332Scyextern void ipf_log_soft_destroy __P((ipf_main_softc_t *, void *)); 1974255332Scyextern void *ipf_log_soft_create __P((ipf_main_softc_t *)); 1975255332Scyextern int ipf_log_soft_init __P((ipf_main_softc_t *, void *)); 1976255332Scyextern int ipf_log_soft_fini __P((ipf_main_softc_t *, void *)); 1977255332Scyextern int ipf_log_main_load __P((void)); 1978255332Scyextern int ipf_log_main_unload __P((void)); 1979255332Scy 1980255332Scy 198153642Sguidoextern char ipfilter_version[]; 198260851Sdarrenr#ifdef USE_INET6 198360851Sdarrenrextern int icmptoicmp6types[ICMP_MAXTYPE+1]; 198460851Sdarrenrextern int icmptoicmp6unreach[ICMP_MAX_UNREACH]; 1985145522Sdarrenrextern int icmpreplytype6[ICMP6_MAXTYPE + 1]; 198653642Sguido#endif 1987255332Scy#ifdef IPFILTER_COMPAT 1988255332Scyextern int ipf_in_compat __P((ipf_main_softc_t *, ipfobj_t *, void *,int)); 1989255332Scyextern int ipf_out_compat __P((ipf_main_softc_t *, ipfobj_t *, void *)); 1990255332Scy#endif 1991145522Sdarrenrextern int icmpreplytype4[ICMP_MAXTYPE + 1]; 199253642Sguido 1993255332Scyextern int ipf_ht_node_add __P((ipf_main_softc_t *, host_track_t *, 1994255332Scy int, i6addr_t *)); 1995255332Scyextern int ipf_ht_node_del __P((host_track_t *, int, i6addr_t *)); 1996255332Scyextern void ipf_rb_ht_flush __P((host_track_t *)); 1997255332Scyextern void ipf_rb_ht_freenode __P((host_node_t *, void *)); 1998255332Scyextern void ipf_rb_ht_init __P((host_track_t *)); 1999255332Scy 200053642Sguido#endif /* __IP_FIL_H__ */ 2001