1/* 2 * Copyright (C) 2012 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * 6 * @(#)ip_compat.h 1.8 1/14/96 7 * $FreeBSD: stable/11/sys/contrib/ipfilter/netinet/ip_compat.h 369277 2021-02-16 00:48:38Z cy $ 8 * Id: ip_compat.h,v 2.142.2.57 2007/10/10 09:51:42 darrenr Exp $ 9 */ 10 11#ifndef __IP_COMPAT_H__ 12#define __IP_COMPAT_H__ 13 14#if defined(_KERNEL) || defined(KERNEL) || defined(__KERNEL__) 15# undef KERNEL 16# undef _KERNEL 17# undef __KERNEL__ 18# define KERNEL 19# define _KERNEL 20# define __KERNEL__ 21#endif 22 23#ifndef SOLARIS 24# if defined(sun) && defined(__SVR4) 25# define SOLARIS 1 26# else 27# define SOLARIS 0 28# endif 29#endif 30 31 32#if defined(__SVR4) 33# define index strchr 34# if !defined(_KERNEL) 35# define bzero(a,b) memset(a,0,b) 36# define bcmp memcmp 37# define bcopy(a,b,c) memmove(b,a,c) 38# endif 39#endif 40 41#ifndef LIFNAMSIZ 42# ifdef IF_NAMESIZE 43# define LIFNAMSIZ IF_NAMESIZE 44# else 45# ifdef IFNAMSIZ 46# define LIFNAMSIZ IFNAMSIZ 47# else 48# define LIFNAMSIZ 16 49# endif 50# endif 51#endif 52 53 54# define IPL_EXTERN(ep) ipl##ep 55 56/* 57 * This is a workaround for <sys/uio.h> troubles on FreeBSD and OpenBSD. 58 */ 59#ifndef _KERNEL 60# define ADD_KERNEL 61# define _KERNEL 62# define KERNEL 63#endif 64#include <sys/uio.h> 65#ifdef ADD_KERNEL 66# undef _KERNEL 67# undef KERNEL 68#endif 69 70#define NETBSD_GE_REV(x) (defined(__NetBSD_Version__) && \ 71 (__NetBSD_Version__ >= (x))) 72#define NETBSD_GT_REV(x) (defined(__NetBSD_Version__) && \ 73 (__NetBSD_Version__ > (x))) 74#define NETBSD_LT_REV(x) (defined(__NetBSD_Version__) && \ 75 (__NetBSD_Version__ < (x))) 76 77 78/* ----------------------------------------------------------------------- */ 79/* F R E E B S D */ 80/* ----------------------------------------------------------------------- */ 81#define HAS_SYS_MD5_H 1 82#if defined(_KERNEL) 83# include "opt_bpf.h" 84# include "opt_inet6.h" 85# if defined(INET6) && !defined(USE_INET6) 86# define USE_INET6 87# endif 88#else 89# if !defined(USE_INET6) && !defined(NOINET6) 90# define USE_INET6 91# endif 92#endif 93 94#if defined(_KERNEL) 95# include <netinet/ip_var.h> 96# define p_cred td_ucred 97# define p_uid td_ucred->cr_ruid 98 99/* 100 * When #define'd, the 5.2.1 kernel panics when used with the ftp proxy. 101 * There may be other, safe, kernels but this is not extensively tested yet. 102 */ 103# define HAVE_M_PULLDOWN 104# if !defined(IPFILTER_LKM) && defined(__FreeBSD__) 105# include "opt_ipfilter.h" 106# endif 107# define COPYIN(a,b,c) copyin((caddr_t)(a), (caddr_t)(b), (c)) 108# define COPYOUT(a,b,c) copyout((caddr_t)(a), (caddr_t)(b), (c)) 109 110#else 111# include <inttypes.h> 112#endif /* _KERNEL */ 113 114#include <sys/selinfo.h> 115#include <sys/lock.h> 116#include <sys/malloc.h> 117#include <sys/mutex.h> 118#define KRWLOCK_FILL_SZ 56 119#define KMUTEX_FILL_SZ 56 120#include <sys/rwlock.h> 121#define KMUTEX_T struct mtx 122#define KRWLOCK_T struct rwlock 123 124#ifdef _KERNEL 125# define READ_ENTER(x) rw_rlock(&(x)->ipf_lk) 126# define WRITE_ENTER(x) rw_wlock(&(x)->ipf_lk) 127# define MUTEX_DOWNGRADE(x) rw_downgrade(&(x)->ipf_lk) 128# define MUTEX_TRY_UPGRADE(x) rw_try_upgrade(&(x)->ipf_lk) 129# define RWLOCK_INIT(x,y) rw_init(&(x)->ipf_lk, (y)) 130# define RW_DESTROY(x) rw_destroy(&(x)->ipf_lk) 131# define RWLOCK_EXIT(x) do { \ 132 if (rw_wowned(&(x)->ipf_lk)) \ 133 rw_wunlock(&(x)->ipf_lk); \ 134 else \ 135 rw_runlock(&(x)->ipf_lk); \ 136 } while (0) 137# include <net/if_var.h> 138# define GETKTIME(x) microtime((struct timeval *)x) 139 140# include <netinet/in_systm.h> 141# include <netinet/ip.h> 142# include <machine/in_cksum.h> 143 144# define USE_MUTEXES 145# define MUTEX_ENTER(x) mtx_lock(&(x)->ipf_lk) 146# define MUTEX_EXIT(x) mtx_unlock(&(x)->ipf_lk) 147# define MUTEX_INIT(x,y) mtx_init(&(x)->ipf_lk, (y), NULL,\ 148 MTX_DEF) 149# define MUTEX_DESTROY(x) mtx_destroy(&(x)->ipf_lk) 150# define MUTEX_NUKE(x) bzero((x), sizeof(*(x))) 151/* 152 * Whilst the sx(9) locks on FreeBSD have the right semantics and interface 153 * for what we want to use them for, despite testing showing they work - 154 * with a WITNESS kernel, it generates LOR messages. 155 */ 156# include <machine/atomic.h> 157# define ATOMIC_INC(x) { mtx_lock(&softc->ipf_rw.ipf_lk); (x)++; \ 158 mtx_unlock(&softc->ipf_rw.ipf_lk); } 159# define ATOMIC_DEC(x) { mtx_lock(&softc->ipf_rw.ipf_lk); (x)--; \ 160 mtx_unlock(&softc->ipf_rw.ipf_lk); } 161# define ATOMIC_INCL(x) atomic_add_long(&(x), 1) 162# define ATOMIC_INC64(x) ATOMIC_INC(x) 163# define ATOMIC_INC32(x) atomic_add_32((u_int *)&(x), 1) 164# define ATOMIC_DECL(x) atomic_add_long(&(x), -1) 165# define ATOMIC_DEC64(x) ATOMIC_DEC(x) 166# define ATOMIC_DEC32(x) atomic_add_32((u_int *)&(x), -1) 167# define SPL_X(x) ; 168# define SPL_NET(x) ; 169# define SPL_IMP(x) ; 170# define SPL_SCHED(x) ; 171# define GET_MINOR dev2unit 172# define MSGDSIZE(m) mbufchainlen(m) 173# define M_LEN(m) (m)->m_len 174# define M_ADJ(m,x) m_adj(m, x) 175# define M_COPY(x) m_copy((x), 0, M_COPYALL) 176# define M_DUP(m) m_dup(m, M_NOWAIT) 177# define IPF_PANIC(x,y) if (x) { printf y; panic("ipf_panic"); } 178typedef struct mbuf mb_t; 179 180#else /* !_KERNEL */ 181# ifndef _NET_IF_VAR_H_ 182/* 183 * Userland emulation of struct ifnet. 184 */ 185struct route; 186struct mbuf; 187struct ifnet { 188 char if_xname[IFNAMSIZ]; 189 TAILQ_HEAD(, ifaddr) if_addrlist; 190 int (*if_output)(struct ifnet *, struct mbuf *, 191 const struct sockaddr *, struct route *); 192}; 193# endif /* _NET_IF_VAR_H_ */ 194#endif /* _KERNEL */ 195 196#define IFNAME(x) ((struct ifnet *)x)->if_xname 197#define COPYIFNAME(v, x, b) \ 198 (void) strncpy(b, \ 199 ((struct ifnet *)x)->if_xname, \ 200 LIFNAMSIZ) 201 202typedef u_long ioctlcmd_t; 203typedef struct uio uio_t; 204typedef int minor_t; 205typedef u_int32_t u_32_t; 206# define U_32_T 1 207 208 209/* ----------------------------------------------------------------------- */ 210/* G E N E R I C */ 211/* ----------------------------------------------------------------------- */ 212 213/* 214 * For BSD kernels, if bpf is in the kernel, enable ipfilter to use bpf in 215 * filter rules. 216 */ 217#if !defined(IPFILTER_BPF) 218# if (defined(NBPF) && (NBPF > 0)) || (defined(DEV_BPF) && (DEV_BPF > 0)) || \ 219 (defined(NBPFILTER) && (NBPFILTER > 0)) 220# define IPFILTER_BPF 221# endif 222#endif 223 224/* 225 * Userland locking primitives 226 */ 227#ifndef _KERNEL 228# if !defined(KMUTEX_FILL_SZ) 229# define KMUTEX_FILL_SZ 1 230# endif 231# if !defined(KRWLOCK_FILL_SZ) 232# define KRWLOCK_FILL_SZ 1 233# endif 234#endif 235 236typedef struct { 237 char *eMm_owner; 238 char *eMm_heldin; 239 u_int eMm_magic; 240 int eMm_held; 241 int eMm_heldat; 242} eMmutex_t; 243 244typedef struct { 245 char *eMrw_owner; 246 char *eMrw_heldin; 247 u_int eMrw_magic; 248 short eMrw_read; 249 short eMrw_write; 250 int eMrw_heldat; 251} eMrwlock_t; 252 253typedef union { 254 char _fill[KMUTEX_FILL_SZ]; 255#ifdef KMUTEX_T 256 struct { 257 KMUTEX_T ipf_slk; 258 const char *ipf_lname; 259 } ipf_lkun_s; 260#endif 261 eMmutex_t ipf_emu; 262} ipfmutex_t; 263 264typedef union { 265 char _fill[KRWLOCK_FILL_SZ]; 266#ifdef KRWLOCK_T 267 struct { 268 KRWLOCK_T ipf_slk; 269 const char *ipf_lname; 270 int ipf_sr; 271 int ipf_sw; 272 u_int ipf_magic; 273 } ipf_lkun_s; 274#endif 275 eMrwlock_t ipf_emu; 276} ipfrwlock_t; 277 278#define ipf_lk ipf_lkun_s.ipf_slk 279#define ipf_lname ipf_lkun_s.ipf_lname 280#define ipf_isr ipf_lkun_s.ipf_sr 281#define ipf_isw ipf_lkun_s.ipf_sw 282#define ipf_magic ipf_lkun_s.ipf_magic 283 284#if !defined(__GNUC__) || defined(__FreeBSD__) 285# ifndef INLINE 286# define INLINE 287# endif 288#else 289# define INLINE __inline__ 290#endif 291 292#if defined(__FreeBSD__) && defined(_KERNEL) 293 CTASSERT(sizeof(ipfrwlock_t) == KRWLOCK_FILL_SZ); 294 CTASSERT(sizeof(ipfmutex_t) == KMUTEX_FILL_SZ); 295#endif 296 297 298/* 299 * In a non-kernel environment, there are a lot of macros that need to be 300 * filled in to be null-ops or to point to some compatibility function, 301 * somewhere in userland. 302 */ 303#ifndef _KERNEL 304typedef struct mb_s { 305 struct mb_s *mb_next; 306 char *mb_data; 307 void *mb_ifp; 308 int mb_len; 309 int mb_flags; 310 u_long mb_buf[2048]; 311} mb_t; 312# undef m_next 313# define m_next mb_next 314# undef m_len 315# define m_len mb_len 316# undef m_flags 317# define m_flags mb_flags 318# undef m_data 319# define m_data mb_data 320# undef M_MCAST 321# define M_MCAST 0x01 322# undef M_BCAST 323# define M_BCAST 0x02 324# undef M_MBCAST 325# define M_MBCAST 0x04 326# define MSGDSIZE(m) msgdsize(m) 327# define M_LEN(m) (m)->mb_len 328# define M_ADJ(m,x) (m)->mb_len += x 329# define M_COPY(m) dupmbt(m) 330# define M_DUP(m) dupmbt(m) 331# define GETKTIME(x) gettimeofday((struct timeval *)(x), NULL) 332# define MTOD(m, t) ((t)(m)->mb_data) 333# define FREE_MB_T(m) freembt(m) 334# define ALLOC_MB_T(m,l) (m) = allocmbt(l) 335# define PREP_MB_T(f, m) do { \ 336 (m)->mb_next = *(f)->fin_mp; \ 337 *(fin)->fin_mp = (m); \ 338 (f)->fin_m = (m); \ 339 } while (0) 340# define SLEEP(x,y) 1; 341# define WAKEUP(x,y) ; 342# define POLLWAKEUP(y) ; 343# define IPF_PANIC(x,y) ; 344# define PANIC(x,y) ; 345# define SPL_SCHED(x) ; 346# define SPL_NET(x) ; 347# define SPL_IMP(x) ; 348# define SPL_X(x) ; 349# define KMALLOC(a,b) (a) = (b)malloc(sizeof(*a)) 350# define KMALLOCS(a,b,c) (a) = (b)malloc(c) 351# define KFREE(x) free(x) 352# define KFREES(x,s) free(x) 353# define GETIFP(x, v) get_unit(x,v) 354# define GETIFMTU_4(x) 2048 355# define GETIFMTU_6(x) 2048 356# define COPYIN(a,b,c) bcopywrap((a), (b), (c)) 357# define COPYOUT(a,b,c) bcopywrap((a), (b), (c)) 358# define COPYDATA(m, o, l, b) bcopy(MTOD((mb_t *)m, char *) + (o), \ 359 (b), (l)) 360# define COPYBACK(m, o, l, b) bcopy((b), \ 361 MTOD((mb_t *)m, char *) + (o), \ 362 (l)) 363# define UIOMOVE(a,b,c,d) ipfuiomove((caddr_t)a,b,c,d) 364extern void m_copydata(mb_t *, int, int, caddr_t); 365extern int ipfuiomove(caddr_t, int, int, struct uio *); 366extern int bcopywrap(void *, void *, size_t); 367extern mb_t *allocmbt(size_t); 368extern mb_t *dupmbt(mb_t *); 369extern void freembt(mb_t *); 370 371# define MUTEX_DESTROY(x) eMmutex_destroy(&(x)->ipf_emu, \ 372 __FILE__, __LINE__) 373# define MUTEX_ENTER(x) eMmutex_enter(&(x)->ipf_emu, \ 374 __FILE__, __LINE__) 375# define MUTEX_EXIT(x) eMmutex_exit(&(x)->ipf_emu, \ 376 __FILE__, __LINE__) 377# define MUTEX_INIT(x,y) eMmutex_init(&(x)->ipf_emu, y, \ 378 __FILE__, __LINE__) 379# define MUTEX_NUKE(x) bzero((x), sizeof(*(x))) 380 381# define MUTEX_DOWNGRADE(x) eMrwlock_downgrade(&(x)->ipf_emu, \ 382 __FILE__, __LINE__) 383# define MUTEX_TRY_UPGRADE(x) eMrwlock_try_upgrade(&(x)->ipf_emu, \ 384 __FILE__, __LINE__) 385# define READ_ENTER(x) eMrwlock_read_enter(&(x)->ipf_emu, \ 386 __FILE__, __LINE__) 387# define RWLOCK_INIT(x, y) eMrwlock_init(&(x)->ipf_emu, y) 388# define RWLOCK_EXIT(x) eMrwlock_exit(&(x)->ipf_emu) 389# define RW_DESTROY(x) eMrwlock_destroy(&(x)->ipf_emu) 390# define WRITE_ENTER(x) eMrwlock_write_enter(&(x)->ipf_emu, \ 391 __FILE__, \ 392 __LINE__) 393 394# define USE_MUTEXES 1 395 396extern void eMmutex_destroy(eMmutex_t *, char *, int); 397extern void eMmutex_enter(eMmutex_t *, char *, int); 398extern void eMmutex_exit(eMmutex_t *, char *, int); 399extern void eMmutex_init(eMmutex_t *, char *, char *, int); 400extern void eMrwlock_destroy(eMrwlock_t *); 401extern void eMrwlock_exit(eMrwlock_t *); 402extern void eMrwlock_init(eMrwlock_t *, char *); 403extern void eMrwlock_read_enter(eMrwlock_t *, char *, int); 404extern void eMrwlock_write_enter(eMrwlock_t *, char *, int); 405extern void eMrwlock_downgrade(eMrwlock_t *, char *, int); 406 407#endif 408 409extern mb_t *allocmbt(size_t); 410 411#define MAX_IPV4HDR ((0xf << 2) + sizeof(struct icmp) + sizeof(ip_t) + 8) 412 413#ifndef IP_OFFMASK 414# define IP_OFFMASK 0x1fff 415#endif 416 417 418/* 419 * On BSD's use quad_t as a guarantee for getting at least a 64bit sized 420 * object. 421 */ 422#if !defined(__amd64__) && !SOLARIS 423# define USE_QUAD_T 424# define U_QUAD_T unsigned long long 425# define QUAD_T long long 426#else /* BSD */ 427# if !defined(U_QUAD_T) 428# define U_QUAD_T u_long 429# define QUAD_T long 430# endif 431#endif /* BSD */ 432 433 434#ifdef USE_INET6 435# if defined(__NetBSD__) || defined(__FreeBSD__) 436# include <netinet/ip6.h> 437# include <netinet/icmp6.h> 438# if defined(_KERNEL) 439# include <netinet6/ip6_var.h> 440# endif 441typedef struct ip6_hdr ip6_t; 442# endif 443#endif 444 445#ifndef MAX 446# define MAX(a,b) (((a) > (b)) ? (a) : (b)) 447#endif 448 449#if defined(_KERNEL) 450# if SOLARIS && !defined(INSTANCES) 451# define COPYDATA mb_copydata 452# define COPYBACK mb_copyback 453# else 454# define COPYDATA m_copydata 455# define COPYBACK m_copyback 456# endif 457# if (defined(__NetBSD_Version__) && (__NetBSD_Version__ < 105180000)) || \ 458 defined(__FreeBSD__) 459# include <vm/vm.h> 460# endif 461# if NETBSD_GE_REV(105180000) 462# include <uvm/uvm_extern.h> 463# else 464# include <vm/vm_extern.h> 465extern vm_map_t kmem_map; 466# endif 467# include <sys/proc.h> 468 469# ifdef IPFILTER_M_IPFILTER 470# include <sys/malloc.h> 471MALLOC_DECLARE(M_IPFILTER); 472# define _M_IPF M_IPFILTER 473# else /* IPFILTER_M_IPFILTER */ 474# ifdef M_PFIL 475# define _M_IPF M_PFIL 476# else 477# ifdef M_IPFILTER 478# define _M_IPF M_IPFILTER 479# else 480# define _M_IPF M_TEMP 481# endif /* M_IPFILTER */ 482# endif /* M_PFIL */ 483# endif /* IPFILTER_M_IPFILTER */ 484# if !defined(KMALLOC) 485# define KMALLOC(a, b) MALLOC((a), b, sizeof(*(a)), _M_IPF, M_NOWAIT) 486# endif 487# if !defined(KMALLOCS) 488# define KMALLOCS(a, b, c) MALLOC((a), b, (c), _M_IPF, M_NOWAIT) 489# endif 490# if !defined(KFREE) 491# define KFREE(x) FREE((x), _M_IPF) 492# endif 493# if !defined(KFREES) 494# define KFREES(x,s) FREE((x), _M_IPF) 495# endif 496# define UIOMOVE(a,b,c,d) uiomove((caddr_t)a,b,d) 497# define SLEEP(id, n) tsleep((id), PPAUSE|PCATCH, n, 0) 498# define WAKEUP(id,x) wakeup(id+x) 499# if !defined(POLLWAKEUP) 500# define POLLWAKEUP(x) selwakeup(softc->ipf_selwait+x) 501# endif 502# define GETIFP(n, v) ifunit(n) 503# define GETIFMTU_4(x) ((struct ifnet *)x)->if_mtu 504# define GETIFMTU_6(x) ((struct ifnet *)x)->if_mtu 505 506# if !defined(USE_MUTEXES) && !defined(SPL_NET) 507# define SPL_IMP(x) x = splimp() 508# define SPL_NET(x) x = splnet() 509# if !defined(SPL_SCHED) 510# define SPL_SCHED(x) x = splsched() 511# endif 512# define SPL_X(x) (void) splx(x) 513# endif /* !USE_MUTEXES */ 514 515# ifndef FREE_MB_T 516# define FREE_MB_T(m) m_freem(m) 517# endif 518# ifndef ALLOC_MB_T 519# ifdef MGETHDR 520# define ALLOC_MB_T(m,l) do { \ 521 MGETHDR((m), M_NOWAIT, MT_HEADER); \ 522 if ((m) != NULL) { \ 523 (m)->m_len = (l); \ 524 (m)->m_pkthdr.len = (l); \ 525 } \ 526 } while (0) 527# else 528# define ALLOC_MB_T(m,l) do { \ 529 MGET((m), M_NOWAIT, MT_HEADER); \ 530 if ((m) != NULL) { \ 531 (m)->m_len = (l); \ 532 (m)->m_pkthdr.len = (l); \ 533 } \ 534 } while (0) 535# endif 536# endif 537# ifndef PREP_MB_T 538# define PREP_MB_T(f, m) do { \ 539 mb_t *_o = *(f)->fin_mp; \ 540 (m)->m_next = _o; \ 541 *(fin)->fin_mp = (m); \ 542 if (_o->m_flags & M_PKTHDR) { \ 543 (m)->m_pkthdr.len += \ 544 _o->m_pkthdr.len; \ 545 (m)->m_pkthdr.rcvif = \ 546 _o->m_pkthdr.rcvif; \ 547 } \ 548 } while (0) 549# endif 550# ifndef M_DUP 551# ifdef M_COPYALL 552# define M_DUP(m) m_dup(m, 0, M_COPYALL, 0) 553# else 554# define M_DUP(m) m_dup(m) 555# endif 556# endif 557 558# ifndef MTOD 559# define MTOD(m,t) mtod(m,t) 560# endif 561 562# ifndef COPYIN 563# define COPYIN(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 564# define COPYOUT(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 565# endif 566 567# if SOLARIS && !defined(KMALLOC) 568# define KMALLOC(a,b) (a) = (b)new_kmem_alloc(sizeof(*(a)), \ 569 KMEM_NOSLEEP) 570# define KMALLOCS(a,b,c) (a) = (b)new_kmem_alloc((c), KMEM_NOSLEEP) 571# endif 572 573# ifndef GET_MINOR 574# define GET_MINOR(x) dev2unit(x) 575# endif 576# define PANIC(x,y) if (x) panic y 577#endif /* _KERNEL */ 578 579#if !defined(IFNAME) && !defined(_KERNEL) 580# define IFNAME(x) get_ifname((struct ifnet *)x) 581#endif 582#ifndef COPYIFNAME 583# define NEED_FRGETIFNAME 584extern char *ipf_getifname(struct ifnet *, char *); 585# define COPYIFNAME(v, x, b) \ 586 ipf_getifname((struct ifnet *)x, b) 587#endif 588 589#ifndef ASSERT 590# ifdef _KERNEL 591# define ASSERT(x) 592# else 593# define ASSERT(x) do { if (!(x)) abort(); } while (0) 594# endif 595#endif 596 597#ifndef BCOPYIN 598# define BCOPYIN(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 599# define BCOPYOUT(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 600#endif 601 602/* 603 * Because the ctype(3) posix definition, if used "safely" in code everywhere, 604 * would mean all normal code that walks through strings needed casts. Yuck. 605 */ 606#define ISALNUM(x) isalnum((u_char)(x)) 607#define ISALPHA(x) isalpha((u_char)(x)) 608#define ISDIGIT(x) isdigit((u_char)(x)) 609#define ISSPACE(x) isspace((u_char)(x)) 610#define ISUPPER(x) isupper((u_char)(x)) 611#define ISXDIGIT(x) isxdigit((u_char)(x)) 612#define ISLOWER(x) islower((u_char)(x)) 613#define TOUPPER(x) toupper((u_char)(x)) 614#define TOLOWER(x) tolower((u_char)(x)) 615 616/* 617 * If mutexes aren't being used, turn all the mutex functions into null-ops. 618 */ 619#if !defined(USE_MUTEXES) 620# define USE_SPL 1 621# undef RW_DESTROY 622# undef MUTEX_INIT 623# undef MUTEX_NUKE 624# undef MUTEX_DESTROY 625# define MUTEX_ENTER(x) ; 626# define READ_ENTER(x) ; 627# define WRITE_ENTER(x) ; 628# define MUTEX_DOWNGRADE(x) ; 629# define MUTEX_TRY_UPGRADE(x) ; 630# define RWLOCK_INIT(x, y) ; 631# define RWLOCK_EXIT(x) ; 632# define RW_DESTROY(x) ; 633# define MUTEX_EXIT(x) ; 634# define MUTEX_INIT(x,y) ; 635# define MUTEX_DESTROY(x) ; 636# define MUTEX_NUKE(x) ; 637#endif /* !USE_MUTEXES */ 638#ifndef ATOMIC_INC 639# define ATOMIC_INC(x) (x)++ 640# define ATOMIC_DEC(x) (x)-- 641#endif 642 643#if defined(USE_SPL) && defined(_KERNEL) 644# define SPL_INT(x) int x 645#else 646# define SPL_INT(x) 647#endif 648 649/* 650 * If there are no atomic operations for bit sizes defined, define them to all 651 * use a generic one that works for all sizes. 652 */ 653#ifndef ATOMIC_INCL 654# define ATOMIC_INCL ATOMIC_INC 655# define ATOMIC_INC64 ATOMIC_INC 656# define ATOMIC_INC32 ATOMIC_INC 657# define ATOMIC_DECL ATOMIC_DEC 658# define ATOMIC_DEC64 ATOMIC_DEC 659# define ATOMIC_DEC32 ATOMIC_DEC 660#endif 661 662#ifndef HDR_T_PRIVATE 663typedef struct tcphdr tcphdr_t; 664typedef struct udphdr udphdr_t; 665#endif 666typedef struct icmp icmphdr_t; 667typedef struct ip ip_t; 668typedef struct ether_header ether_header_t; 669typedef struct tcpiphdr tcpiphdr_t; 670 671#ifndef FR_GROUPLEN 672# define FR_GROUPLEN 16 673#endif 674 675#ifndef offsetof 676# define offsetof(t,m) (size_t)((&((t *)0L)->m)) 677#endif 678#ifndef stsizeof 679# define stsizeof(t,m) sizeof(((t *)0L)->m) 680#endif 681 682/* 683 * This set of macros has been brought about because on Tru64 it is not 684 * possible to easily assign or examine values in a structure that are 685 * bit fields. 686 */ 687#ifndef IP_V 688# define IP_V(x) (x)->ip_v 689#endif 690#ifndef IP_V_A 691# define IP_V_A(x,y) (x)->ip_v = (y) 692#endif 693#ifndef IP_HL 694# define IP_HL(x) (x)->ip_hl 695#endif 696#ifndef IP_HL_A 697# define IP_HL_A(x,y) (x)->ip_hl = ((y) & 0xf) 698#endif 699#ifndef TCP_X2 700# define TCP_X2(x) (x)->th_x2 701#endif 702#ifndef TCP_X2_A 703# define TCP_X2_A(x,y) (x)->th_x2 = (y) 704#endif 705#ifndef TCP_OFF 706# define TCP_OFF(x) (x)->th_off 707#endif 708#ifndef TCP_OFF_A 709# define TCP_OFF_A(x,y) (x)->th_off = (y) 710#endif 711#define IPMINLEN(i, h) ((i)->ip_len >= (IP_HL(i) * 4 + sizeof(struct h))) 712 713#define TCPF_ALL (TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG|\ 714 TH_ECN|TH_CWR) 715 716#if !SOLARIS && !defined(m_act) 717# define m_act m_nextpkt 718#endif 719 720/* 721 * Security Options for Intenet Protocol (IPSO) as defined in RFC 1108. 722 * 723 * Basic Option 724 * 725 * 00000001 - (Reserved 4) 726 * 00111101 - Top Secret 727 * 01011010 - Secret 728 * 10010110 - Confidential 729 * 01100110 - (Reserved 3) 730 * 11001100 - (Reserved 2) 731 * 10101011 - Unclassified 732 * 11110001 - (Reserved 1) 733 */ 734#define IPSO_CLASS_RES4 0x01 735#define IPSO_CLASS_TOPS 0x3d 736#define IPSO_CLASS_SECR 0x5a 737#define IPSO_CLASS_CONF 0x96 738#define IPSO_CLASS_RES3 0x66 739#define IPSO_CLASS_RES2 0xcc 740#define IPSO_CLASS_UNCL 0xab 741#define IPSO_CLASS_RES1 0xf1 742 743#define IPSO_AUTH_GENSER 0x80 744#define IPSO_AUTH_ESI 0x40 745#define IPSO_AUTH_SCI 0x20 746#define IPSO_AUTH_NSA 0x10 747#define IPSO_AUTH_DOE 0x08 748#define IPSO_AUTH_UN 0x06 749#define IPSO_AUTH_FTE 0x01 750 751/* 752 * IP option #defines 753 */ 754#undef IPOPT_RR 755#define IPOPT_RR 7 756#undef IPOPT_ZSU 757#define IPOPT_ZSU 10 /* ZSU */ 758#undef IPOPT_MTUP 759#define IPOPT_MTUP 11 /* MTUP */ 760#undef IPOPT_MTUR 761#define IPOPT_MTUR 12 /* MTUR */ 762#undef IPOPT_ENCODE 763#define IPOPT_ENCODE 15 /* ENCODE */ 764#undef IPOPT_TS 765#define IPOPT_TS 68 766#undef IPOPT_TR 767#define IPOPT_TR 82 /* TR */ 768#undef IPOPT_SECURITY 769#define IPOPT_SECURITY 130 770#undef IPOPT_LSRR 771#define IPOPT_LSRR 131 772#undef IPOPT_E_SEC 773#define IPOPT_E_SEC 133 /* E-SEC */ 774#undef IPOPT_CIPSO 775#define IPOPT_CIPSO 134 /* CIPSO */ 776#undef IPOPT_SATID 777#define IPOPT_SATID 136 778#ifndef IPOPT_SID 779# define IPOPT_SID IPOPT_SATID 780#endif 781#undef IPOPT_SSRR 782#define IPOPT_SSRR 137 783#undef IPOPT_ADDEXT 784#define IPOPT_ADDEXT 147 /* ADDEXT */ 785#undef IPOPT_VISA 786#define IPOPT_VISA 142 /* VISA */ 787#undef IPOPT_IMITD 788#define IPOPT_IMITD 144 /* IMITD */ 789#undef IPOPT_EIP 790#define IPOPT_EIP 145 /* EIP */ 791#undef IPOPT_RTRALRT 792#define IPOPT_RTRALRT 148 /* RTRALRT */ 793#undef IPOPT_SDB 794#define IPOPT_SDB 149 795#undef IPOPT_NSAPA 796#define IPOPT_NSAPA 150 797#undef IPOPT_DPS 798#define IPOPT_DPS 151 799#undef IPOPT_UMP 800#define IPOPT_UMP 152 801#undef IPOPT_FINN 802#define IPOPT_FINN 205 /* FINN */ 803#undef IPOPT_AH 804#define IPOPT_AH 256+IPPROTO_AH 805 806#define ICMP_UNREACH_ADMIN_PROHIBIT ICMP_UNREACH_FILTER_PROHIB 807#define ICMP_UNREACH_FILTER ICMP_UNREACH_FILTER_PROHIB 808 809#ifndef IPVERSION 810# define IPVERSION 4 811#endif 812#ifndef IPOPT_MINOFF 813# define IPOPT_MINOFF 4 814#endif 815#ifndef IPOPT_COPIED 816# define IPOPT_COPIED(x) ((x)&0x80) 817#endif 818#ifndef IPOPT_EOL 819# define IPOPT_EOL 0 820#endif 821#ifndef IPOPT_NOP 822# define IPOPT_NOP 1 823#endif 824#ifndef IP_MF 825# define IP_MF ((u_short)0x2000) 826#endif 827#ifndef ETHERTYPE_IP 828# define ETHERTYPE_IP ((u_short)0x0800) 829#endif 830#ifndef TH_FIN 831# define TH_FIN 0x01 832#endif 833#ifndef TH_SYN 834# define TH_SYN 0x02 835#endif 836#ifndef TH_RST 837# define TH_RST 0x04 838#endif 839#ifndef TH_PUSH 840# define TH_PUSH 0x08 841#endif 842#ifndef TH_ACK 843# define TH_ACK 0x10 844#endif 845#ifndef TH_URG 846# define TH_URG 0x20 847#endif 848#undef TH_ACKMASK 849#define TH_ACKMASK (TH_FIN|TH_SYN|TH_RST|TH_ACK) 850 851#ifndef IPOPT_EOL 852# define IPOPT_EOL 0 853#endif 854#ifndef IPOPT_NOP 855# define IPOPT_NOP 1 856#endif 857#ifndef IPOPT_RR 858# define IPOPT_RR 7 859#endif 860#ifndef IPOPT_TS 861# define IPOPT_TS 68 862#endif 863#ifndef IPOPT_SECURITY 864# define IPOPT_SECURITY 130 865#endif 866#ifndef IPOPT_LSRR 867# define IPOPT_LSRR 131 868#endif 869#ifndef IPOPT_SATID 870# define IPOPT_SATID 136 871#endif 872#ifndef IPOPT_SSRR 873# define IPOPT_SSRR 137 874#endif 875#ifndef IPOPT_SECUR_UNCLASS 876# define IPOPT_SECUR_UNCLASS ((u_short)0x0000) 877#endif 878#ifndef IPOPT_SECUR_CONFID 879# define IPOPT_SECUR_CONFID ((u_short)0xf135) 880#endif 881#ifndef IPOPT_SECUR_EFTO 882# define IPOPT_SECUR_EFTO ((u_short)0x789a) 883#endif 884#ifndef IPOPT_SECUR_MMMM 885# define IPOPT_SECUR_MMMM ((u_short)0xbc4d) 886#endif 887#ifndef IPOPT_SECUR_RESTR 888# define IPOPT_SECUR_RESTR ((u_short)0xaf13) 889#endif 890#ifndef IPOPT_SECUR_SECRET 891# define IPOPT_SECUR_SECRET ((u_short)0xd788) 892#endif 893#ifndef IPOPT_SECUR_TOPSECRET 894# define IPOPT_SECUR_TOPSECRET ((u_short)0x6bc5) 895#endif 896#ifndef IPOPT_OLEN 897# define IPOPT_OLEN 1 898#endif 899#ifndef IPPROTO_HOPOPTS 900# define IPPROTO_HOPOPTS 0 901#endif 902#ifndef IPPROTO_IPIP 903# define IPPROTO_IPIP 4 904#endif 905#ifndef IPPROTO_ENCAP 906# define IPPROTO_ENCAP 98 907#endif 908#ifndef IPPROTO_IPV6 909# define IPPROTO_IPV6 41 910#endif 911#ifndef IPPROTO_ROUTING 912# define IPPROTO_ROUTING 43 913#endif 914#ifndef IPPROTO_FRAGMENT 915# define IPPROTO_FRAGMENT 44 916#endif 917#ifndef IPPROTO_GRE 918# define IPPROTO_GRE 47 /* GRE encaps RFC 1701 */ 919#endif 920#ifndef IPPROTO_ESP 921# define IPPROTO_ESP 50 922#endif 923#ifndef IPPROTO_AH 924# define IPPROTO_AH 51 925#endif 926#ifndef IPPROTO_ICMPV6 927# define IPPROTO_ICMPV6 58 928#endif 929#ifndef IPPROTO_NONE 930# define IPPROTO_NONE 59 931#endif 932#ifndef IPPROTO_DSTOPTS 933# define IPPROTO_DSTOPTS 60 934#endif 935#ifndef IPPROTO_MOBILITY 936# define IPPROTO_MOBILITY 135 937#endif 938 939#ifndef ICMP_ROUTERADVERT 940# define ICMP_ROUTERADVERT 9 941#endif 942#ifndef ICMP_ROUTERSOLICIT 943# define ICMP_ROUTERSOLICIT 10 944#endif 945#ifndef ICMP6_DST_UNREACH 946# define ICMP6_DST_UNREACH 1 947#endif 948#ifndef ICMP6_PACKET_TOO_BIG 949# define ICMP6_PACKET_TOO_BIG 2 950#endif 951#ifndef ICMP6_TIME_EXCEEDED 952# define ICMP6_TIME_EXCEEDED 3 953#endif 954#ifndef ICMP6_PARAM_PROB 955# define ICMP6_PARAM_PROB 4 956#endif 957 958#ifndef ICMP6_ECHO_REQUEST 959# define ICMP6_ECHO_REQUEST 128 960#endif 961#ifndef ICMP6_ECHO_REPLY 962# define ICMP6_ECHO_REPLY 129 963#endif 964#ifndef ICMP6_MEMBERSHIP_QUERY 965# define ICMP6_MEMBERSHIP_QUERY 130 966#endif 967#ifndef MLD6_LISTENER_QUERY 968# define MLD6_LISTENER_QUERY 130 969#endif 970#ifndef ICMP6_MEMBERSHIP_REPORT 971# define ICMP6_MEMBERSHIP_REPORT 131 972#endif 973#ifndef MLD6_LISTENER_REPORT 974# define MLD6_LISTENER_REPORT 131 975#endif 976#ifndef ICMP6_MEMBERSHIP_REDUCTION 977# define ICMP6_MEMBERSHIP_REDUCTION 132 978#endif 979#ifndef MLD6_LISTENER_DONE 980# define MLD6_LISTENER_DONE 132 981#endif 982#ifndef ND_ROUTER_SOLICIT 983# define ND_ROUTER_SOLICIT 133 984#endif 985#ifndef ND_ROUTER_ADVERT 986# define ND_ROUTER_ADVERT 134 987#endif 988#ifndef ND_NEIGHBOR_SOLICIT 989# define ND_NEIGHBOR_SOLICIT 135 990#endif 991#ifndef ND_NEIGHBOR_ADVERT 992# define ND_NEIGHBOR_ADVERT 136 993#endif 994#ifndef ND_REDIRECT 995# define ND_REDIRECT 137 996#endif 997#ifndef ICMP6_ROUTER_RENUMBERING 998# define ICMP6_ROUTER_RENUMBERING 138 999#endif 1000#ifndef ICMP6_WRUREQUEST 1001# define ICMP6_WRUREQUEST 139 1002#endif 1003#ifndef ICMP6_WRUREPLY 1004# define ICMP6_WRUREPLY 140 1005#endif 1006#ifndef ICMP6_FQDN_QUERY 1007# define ICMP6_FQDN_QUERY 139 1008#endif 1009#ifndef ICMP6_FQDN_REPLY 1010# define ICMP6_FQDN_REPLY 140 1011#endif 1012#ifndef ICMP6_NI_QUERY 1013# define ICMP6_NI_QUERY 139 1014#endif 1015#ifndef ICMP6_NI_REPLY 1016# define ICMP6_NI_REPLY 140 1017#endif 1018#ifndef MLD6_MTRACE_RESP 1019# define MLD6_MTRACE_RESP 200 1020#endif 1021#ifndef MLD6_MTRACE 1022# define MLD6_MTRACE 201 1023#endif 1024#ifndef ICMP6_HADISCOV_REQUEST 1025# define ICMP6_HADISCOV_REQUEST 202 1026#endif 1027#ifndef ICMP6_HADISCOV_REPLY 1028# define ICMP6_HADISCOV_REPLY 203 1029#endif 1030#ifndef ICMP6_MOBILEPREFIX_SOLICIT 1031# define ICMP6_MOBILEPREFIX_SOLICIT 204 1032#endif 1033#ifndef ICMP6_MOBILEPREFIX_ADVERT 1034# define ICMP6_MOBILEPREFIX_ADVERT 205 1035#endif 1036#ifndef ICMP6_MAXTYPE 1037# define ICMP6_MAXTYPE 205 1038#endif 1039 1040#ifndef ICMP6_DST_UNREACH_NOROUTE 1041# define ICMP6_DST_UNREACH_NOROUTE 0 1042#endif 1043#ifndef ICMP6_DST_UNREACH_ADMIN 1044# define ICMP6_DST_UNREACH_ADMIN 1 1045#endif 1046#ifndef ICMP6_DST_UNREACH_NOTNEIGHBOR 1047# define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 1048#endif 1049#ifndef ICMP6_DST_UNREACH_BEYONDSCOPE 1050# define ICMP6_DST_UNREACH_BEYONDSCOPE 2 1051#endif 1052#ifndef ICMP6_DST_UNREACH_ADDR 1053# define ICMP6_DST_UNREACH_ADDR 3 1054#endif 1055#ifndef ICMP6_DST_UNREACH_NOPORT 1056# define ICMP6_DST_UNREACH_NOPORT 4 1057#endif 1058#ifndef ICMP6_TIME_EXCEED_TRANSIT 1059# define ICMP6_TIME_EXCEED_TRANSIT 0 1060#endif 1061#ifndef ICMP6_TIME_EXCEED_REASSEMBLY 1062# define ICMP6_TIME_EXCEED_REASSEMBLY 1 1063#endif 1064 1065#ifndef ICMP6_NI_SUCCESS 1066# define ICMP6_NI_SUCCESS 0 1067#endif 1068#ifndef ICMP6_NI_REFUSED 1069# define ICMP6_NI_REFUSED 1 1070#endif 1071#ifndef ICMP6_NI_UNKNOWN 1072# define ICMP6_NI_UNKNOWN 2 1073#endif 1074 1075#ifndef ICMP6_ROUTER_RENUMBERING_COMMAND 1076# define ICMP6_ROUTER_RENUMBERING_COMMAND 0 1077#endif 1078#ifndef ICMP6_ROUTER_RENUMBERING_RESULT 1079# define ICMP6_ROUTER_RENUMBERING_RESULT 1 1080#endif 1081#ifndef ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 1082# define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 1083#endif 1084 1085#ifndef ICMP6_PARAMPROB_HEADER 1086# define ICMP6_PARAMPROB_HEADER 0 1087#endif 1088#ifndef ICMP6_PARAMPROB_NEXTHEADER 1089# define ICMP6_PARAMPROB_NEXTHEADER 1 1090#endif 1091#ifndef ICMP6_PARAMPROB_OPTION 1092# define ICMP6_PARAMPROB_OPTION 2 1093#endif 1094 1095#ifndef ICMP6_NI_SUBJ_IPV6 1096# define ICMP6_NI_SUBJ_IPV6 0 1097#endif 1098#ifndef ICMP6_NI_SUBJ_FQDN 1099# define ICMP6_NI_SUBJ_FQDN 1 1100#endif 1101#ifndef ICMP6_NI_SUBJ_IPV4 1102# define ICMP6_NI_SUBJ_IPV4 2 1103#endif 1104 1105#ifndef MLD_MTRACE_RESP 1106# define MLD_MTRACE_RESP 200 1107#endif 1108#ifndef MLD_MTRACE 1109# define MLD_MTRACE 201 1110#endif 1111#ifndef MLD6_MTRACE_RESP 1112# define MLD6_MTRACE_RESP MLD_MTRACE_RESP 1113#endif 1114#ifndef MLD6_MTRACE 1115# define MLD6_MTRACE MLD_MTRACE 1116#endif 1117 1118#if !defined(IPV6_FLOWINFO_MASK) 1119# if (BYTE_ORDER == BIG_ENDIAN) || defined(_BIG_ENDIAN) 1120# define IPV6_FLOWINFO_MASK 0x0fffffff /* flow info (28 bits) */ 1121# else 1122# if(BYTE_ORDER == LITTLE_ENDIAN) || !defined(_BIG_ENDIAN) 1123# define IPV6_FLOWINFO_MASK 0xffffff0f /* flow info (28 bits) */ 1124# endif /* LITTLE_ENDIAN */ 1125# endif 1126#endif 1127#if !defined(IPV6_FLOWLABEL_MASK) 1128# if (BYTE_ORDER == BIG_ENDIAN) || defined(_BIG_ENDIAN) 1129# define IPV6_FLOWLABEL_MASK 0x000fffff /* flow label (20 bits) */ 1130# else 1131# if (BYTE_ORDER == LITTLE_ENDIAN) || !defined(_BIG_ENDIAN) 1132# define IPV6_FLOWLABEL_MASK 0xffff0f00 /* flow label (20 bits) */ 1133# endif /* LITTLE_ENDIAN */ 1134# endif 1135#endif 1136 1137/* 1138 * ECN is a new addition to TCP - RFC 2481 1139 */ 1140#ifndef TH_ECN 1141# define TH_ECN 0x40 1142#endif 1143#ifndef TH_CWR 1144# define TH_CWR 0x80 1145#endif 1146#define TH_ECNALL (TH_ECN|TH_CWR) 1147 1148/* 1149 * TCP States 1150 */ 1151#define IPF_TCPS_LISTEN 0 /* listening for connection */ 1152#define IPF_TCPS_SYN_SENT 1 /* active, have sent syn */ 1153#define IPF_TCPS_SYN_RECEIVED 2 /* have send and received syn */ 1154#define IPF_TCPS_HALF_ESTAB 3 /* for connections not fully "up" */ 1155/* states < IPF_TCPS_ESTABLISHED are those where connections not established */ 1156#define IPF_TCPS_ESTABLISHED 4 /* established */ 1157#define IPF_TCPS_CLOSE_WAIT 5 /* rcvd fin, waiting for close */ 1158/* states > IPF_TCPS_CLOSE_WAIT are those where user has closed */ 1159#define IPF_TCPS_FIN_WAIT_1 6 /* have closed, sent fin */ 1160#define IPF_TCPS_CLOSING 7 /* closed xchd FIN; await FIN ACK */ 1161#define IPF_TCPS_LAST_ACK 8 /* had fin and close; await FIN ACK */ 1162/* states > IPF_TCPS_CLOSE_WAIT && < IPF_TCPS_FIN_WAIT_2 await ACK of FIN */ 1163#define IPF_TCPS_FIN_WAIT_2 9 /* have closed, fin is acked */ 1164#define IPF_TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ 1165#define IPF_TCPS_CLOSED 11 /* closed */ 1166#define IPF_TCP_NSTATES 12 1167 1168#define TCP_MSL 120 1169 1170#undef ICMP_MAX_UNREACH 1171#define ICMP_MAX_UNREACH 14 1172#undef ICMP_MAXTYPE 1173#define ICMP_MAXTYPE 18 1174 1175#ifndef LOG_FTP 1176# define LOG_FTP (11<<3) 1177#endif 1178#ifndef LOG_AUTHPRIV 1179# define LOG_AUTHPRIV (10<<3) 1180#endif 1181#ifndef LOG_AUDIT 1182# define LOG_AUDIT (13<<3) 1183#endif 1184#ifndef LOG_NTP 1185# define LOG_NTP (12<<3) 1186#endif 1187#ifndef LOG_SECURITY 1188# define LOG_SECURITY (13<<3) 1189#endif 1190#ifndef LOG_LFMT 1191# define LOG_LFMT (14<<3) 1192#endif 1193#ifndef LOG_CONSOLE 1194# define LOG_CONSOLE (14<<3) 1195#endif 1196 1197/* 1198 * ICMP error replies have an IP header (20 bytes), 8 bytes of ICMP data, 1199 * another IP header and then 64 bits of data, totalling 56. Of course, 1200 * the last 64 bits is dependent on that being available. 1201 */ 1202#define ICMPERR_ICMPHLEN 8 1203#define ICMPERR_IPICMPHLEN (20 + 8) 1204#define ICMPERR_MINPKTLEN (20 + 8 + 20) 1205#define ICMPERR_MAXPKTLEN (20 + 8 + 20 + 8) 1206#define ICMP6ERR_MINPKTLEN (40 + 8) 1207#define ICMP6ERR_IPICMPHLEN (40 + 8 + 40) 1208 1209#ifndef MIN 1210# define MIN(a,b) (((a)<(b))?(a):(b)) 1211#endif 1212 1213#ifdef RESCUE 1214# undef IPFILTER_BPF 1215#endif 1216 1217#ifdef IPF_DEBUG 1218# define DPRINT(x) printf x 1219#else 1220# define DPRINT(x) 1221#endif 1222 1223#ifdef DTRACE_PROBE 1224# ifdef _KERNEL 1225# define DT(_n) DTRACE_PROBE(_n) 1226# define DT1(_n,_a,_b) DTRACE_PROBE1(_n,_a,_b) 1227# define DT2(_n,_a,_b,_c,_d) DTRACE_PROBE2(_n,_a,_b,_c,_d) 1228# define DT3(_n,_a,_b,_c,_d,_e,_f) \ 1229 DTRACE_PROBE3(_n,_a,_b,_c,_d,_e,_f) 1230# define DT4(_n,_a,_b,_c,_d,_e,_f,_g,_h) \ 1231 DTRACE_PROBE4(_n,_a,_b,_c,_d,_e,_f,_g,_h) 1232# else 1233# define DT(_n) 1234# define DT1(_n,_a,_b) 1235# define DT2(_n,_a,_b,_c,_d) 1236# define DT3(_n,_a,_b,_c,_d,_e,_f) 1237# define DT4(_n,_a,_b,_c,_d,_e,_f,_g,_h) 1238# endif 1239#else 1240# define DT(_n) 1241# define DT1(_n,_a,_b) 1242# define DT2(_n,_a,_b,_c,_d) 1243# define DT3(_n,_a,_b,_c,_d,_e,_f) 1244# define DT4(_n,_a,_b,_c,_d,_e,_f,_g,_h) 1245#endif 1246 1247struct ip6_routing { 1248 u_char ip6r_nxt; /* next header */ 1249 u_char ip6r_len; /* length in units of 8 octets */ 1250 u_char ip6r_type; /* always zero */ 1251 u_char ip6r_segleft; /* segments left */ 1252 u_32_t ip6r_reserved; /* reserved field */ 1253}; 1254 1255#endif /* __IP_COMPAT_H__ */ 1256