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 * $FreeBSD$ 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# define if_addrlist if_addrhead 140 141# include <netinet/in_systm.h> 142# include <netinet/ip.h> 143# include <machine/in_cksum.h> 144 145# define USE_MUTEXES 146# define MUTEX_ENTER(x) mtx_lock(&(x)->ipf_lk) 147# define MUTEX_EXIT(x) mtx_unlock(&(x)->ipf_lk) 148# define MUTEX_INIT(x,y) mtx_init(&(x)->ipf_lk, (y), NULL,\ 149 MTX_DEF) 150# define MUTEX_DESTROY(x) mtx_destroy(&(x)->ipf_lk) 151# define MUTEX_NUKE(x) bzero((x), sizeof(*(x))) 152/* 153 * Whilst the sx(9) locks on FreeBSD have the right semantics and interface 154 * for what we want to use them for, despite testing showing they work - 155 * with a WITNESS kernel, it generates LOR messages. 156 */ 157# include <machine/atomic.h> 158# define ATOMIC_INC(x) { mtx_lock(&softc->ipf_rw.ipf_lk); (x)++; \ 159 mtx_unlock(&softc->ipf_rw.ipf_lk); } 160# define ATOMIC_DEC(x) { mtx_lock(&softc->ipf_rw.ipf_lk); (x)--; \ 161 mtx_unlock(&softc->ipf_rw.ipf_lk); } 162# define ATOMIC_INCL(x) atomic_add_long(&(x), 1) 163# define ATOMIC_INC64(x) ATOMIC_INC(x) 164# define ATOMIC_INC32(x) atomic_add_32((u_int *)&(x), 1) 165# define ATOMIC_DECL(x) atomic_add_long(&(x), -1) 166# define ATOMIC_DEC64(x) ATOMIC_DEC(x) 167# define ATOMIC_DEC32(x) atomic_add_32((u_int *)&(x), -1) 168# define SPL_X(x) ; 169# define SPL_NET(x) ; 170# define SPL_IMP(x) ; 171# define SPL_SCHED(x) ; 172# define GET_MINOR dev2unit 173# define MSGDSIZE(m) mbufchainlen(m) 174# define M_LEN(m) (m)->m_len 175# define M_ADJ(m,x) m_adj(m, x) 176# define M_COPY(x) m_copym((x), 0, M_COPYALL, M_NOWAIT) 177# define M_DUP(m) m_dup(m, M_NOWAIT) 178# define IPF_PANIC(x,y) if (x) { printf y; panic("ipf_panic"); } 179typedef struct mbuf mb_t; 180 181#else /* !_KERNEL */ 182# ifndef _NET_IF_VAR_H_ 183/* 184 * Userland emulation of struct ifnet. 185 */ 186struct route; 187struct mbuf; 188struct ifnet { 189 char if_xname[IFNAMSIZ]; 190 STAILQ_HEAD(, ifaddr) if_addrlist; 191 int (*if_output)(struct ifnet *, struct mbuf *, 192 const struct sockaddr *, struct route *); 193}; 194# endif /* _NET_IF_VAR_H_ */ 195#endif /* _KERNEL */ 196 197#define IFNAME(x) ((struct ifnet *)x)->if_xname 198#define COPYIFNAME(v, x, b) \ 199 (void) strncpy(b, \ 200 ((struct ifnet *)x)->if_xname, \ 201 LIFNAMSIZ) 202 203typedef u_long ioctlcmd_t; 204typedef struct uio uio_t; 205typedef int minor_t; 206typedef u_int32_t u_32_t; 207# define U_32_T 1 208 209 210/* ----------------------------------------------------------------------- */ 211/* G E N E R I C */ 212/* ----------------------------------------------------------------------- */ 213 214/* 215 * For BSD kernels, if bpf is in the kernel, enable ipfilter to use bpf in 216 * filter rules. 217 */ 218#if !defined(IPFILTER_BPF) 219# if (defined(NBPF) && (NBPF > 0)) || (defined(DEV_BPF) && (DEV_BPF > 0)) || \ 220 (defined(NBPFILTER) && (NBPFILTER > 0)) 221# define IPFILTER_BPF 222# endif 223#endif 224 225/* 226 * Userland locking primitives 227 */ 228#ifndef _KERNEL 229# if !defined(KMUTEX_FILL_SZ) 230# define KMUTEX_FILL_SZ 1 231# endif 232# if !defined(KRWLOCK_FILL_SZ) 233# define KRWLOCK_FILL_SZ 1 234# endif 235#endif 236 237typedef struct { 238 char *eMm_owner; 239 char *eMm_heldin; 240 u_int eMm_magic; 241 int eMm_held; 242 int eMm_heldat; 243} eMmutex_t; 244 245typedef struct { 246 char *eMrw_owner; 247 char *eMrw_heldin; 248 u_int eMrw_magic; 249 short eMrw_read; 250 short eMrw_write; 251 int eMrw_heldat; 252} eMrwlock_t; 253 254typedef union { 255 char _fill[KMUTEX_FILL_SZ]; 256#ifdef KMUTEX_T 257 struct { 258 KMUTEX_T ipf_slk; 259 const char *ipf_lname; 260 } ipf_lkun_s; 261#endif 262 eMmutex_t ipf_emu; 263} ipfmutex_t; 264 265typedef union { 266 char _fill[KRWLOCK_FILL_SZ]; 267#ifdef KRWLOCK_T 268 struct { 269 KRWLOCK_T ipf_slk; 270 const char *ipf_lname; 271 int ipf_sr; 272 int ipf_sw; 273 u_int ipf_magic; 274 } ipf_lkun_s; 275#endif 276 eMrwlock_t ipf_emu; 277} ipfrwlock_t; 278 279#define ipf_lk ipf_lkun_s.ipf_slk 280#define ipf_lname ipf_lkun_s.ipf_lname 281#define ipf_isr ipf_lkun_s.ipf_sr 282#define ipf_isw ipf_lkun_s.ipf_sw 283#define ipf_magic ipf_lkun_s.ipf_magic 284 285#if !defined(__GNUC__) || defined(__FreeBSD__) 286# ifndef INLINE 287# define INLINE 288# endif 289#else 290# define INLINE __inline__ 291#endif 292 293#if defined(__FreeBSD__) && defined(_KERNEL) 294 CTASSERT(sizeof(ipfrwlock_t) == KRWLOCK_FILL_SZ); 295 CTASSERT(sizeof(ipfmutex_t) == KMUTEX_FILL_SZ); 296#endif 297 298 299/* 300 * In a non-kernel environment, there are a lot of macros that need to be 301 * filled in to be null-ops or to point to some compatibility function, 302 * somewhere in userland. 303 */ 304#ifndef _KERNEL 305typedef struct mb_s { 306 struct mb_s *mb_next; 307 char *mb_data; 308 void *mb_ifp; 309 int mb_len; 310 int mb_flags; 311 u_long mb_buf[2048]; 312} mb_t; 313# undef m_next 314# define m_next mb_next 315# undef m_len 316# define m_len mb_len 317# undef m_flags 318# define m_flags mb_flags 319# undef m_data 320# define m_data mb_data 321# undef M_MCAST 322# define M_MCAST 0x01 323# undef M_BCAST 324# define M_BCAST 0x02 325# undef M_MBCAST 326# define M_MBCAST 0x04 327# define MSGDSIZE(m) msgdsize(m) 328# define M_LEN(m) (m)->mb_len 329# define M_ADJ(m,x) (m)->mb_len += x 330# define M_COPY(m) dupmbt(m) 331# define M_DUP(m) dupmbt(m) 332# define GETKTIME(x) gettimeofday((struct timeval *)(x), NULL) 333# define MTOD(m, t) ((t)(m)->mb_data) 334# define FREE_MB_T(m) freembt(m) 335# define ALLOC_MB_T(m,l) (m) = allocmbt(l) 336# define PREP_MB_T(f, m) do { \ 337 (m)->mb_next = *(f)->fin_mp; \ 338 *(fin)->fin_mp = (m); \ 339 (f)->fin_m = (m); \ 340 } while (0) 341# define SLEEP(x,y) 1; 342# define WAKEUP(x,y) ; 343# define POLLWAKEUP(y) ; 344# define IPF_PANIC(x,y) ; 345# define PANIC(x,y) ; 346# define SPL_SCHED(x) ; 347# define SPL_NET(x) ; 348# define SPL_IMP(x) ; 349# define SPL_X(x) ; 350# define KMALLOC(a,b) (a) = (b)malloc(sizeof(*a)) 351# define KMALLOCS(a,b,c) (a) = (b)malloc(c) 352# define KFREE(x) free(x) 353# define KFREES(x,s) free(x) 354# define GETIFP(x, v) get_unit(x,v) 355# define GETIFMTU_4(x) 2048 356# define GETIFMTU_6(x) 2048 357# define COPYIN(a,b,c) bcopywrap((a), (b), (c)) 358# define COPYOUT(a,b,c) bcopywrap((a), (b), (c)) 359# define COPYDATA(m, o, l, b) bcopy(MTOD((mb_t *)m, char *) + (o), \ 360 (b), (l)) 361# define COPYBACK(m, o, l, b) bcopy((b), \ 362 MTOD((mb_t *)m, char *) + (o), \ 363 (l)) 364# define UIOMOVE(a,b,c,d) ipfuiomove((caddr_t)a,b,c,d) 365extern void m_copydata(mb_t *, int, int, caddr_t); 366extern int ipfuiomove(caddr_t, int, int, struct uio *); 367extern int bcopywrap(void *, void *, size_t); 368extern mb_t *allocmbt(size_t); 369extern mb_t *dupmbt(mb_t *); 370extern void freembt(mb_t *); 371 372# define MUTEX_DESTROY(x) eMmutex_destroy(&(x)->ipf_emu, \ 373 __FILE__, __LINE__) 374# define MUTEX_ENTER(x) eMmutex_enter(&(x)->ipf_emu, \ 375 __FILE__, __LINE__) 376# define MUTEX_EXIT(x) eMmutex_exit(&(x)->ipf_emu, \ 377 __FILE__, __LINE__) 378# define MUTEX_INIT(x,y) eMmutex_init(&(x)->ipf_emu, y, \ 379 __FILE__, __LINE__) 380# define MUTEX_NUKE(x) bzero((x), sizeof(*(x))) 381 382# define MUTEX_DOWNGRADE(x) eMrwlock_downgrade(&(x)->ipf_emu, \ 383 __FILE__, __LINE__) 384# define MUTEX_TRY_UPGRADE(x) eMrwlock_try_upgrade(&(x)->ipf_emu, \ 385 __FILE__, __LINE__) 386# define READ_ENTER(x) eMrwlock_read_enter(&(x)->ipf_emu, \ 387 __FILE__, __LINE__) 388# define RWLOCK_INIT(x, y) eMrwlock_init(&(x)->ipf_emu, y) 389# define RWLOCK_EXIT(x) eMrwlock_exit(&(x)->ipf_emu) 390# define RW_DESTROY(x) eMrwlock_destroy(&(x)->ipf_emu) 391# define WRITE_ENTER(x) eMrwlock_write_enter(&(x)->ipf_emu, \ 392 __FILE__, \ 393 __LINE__) 394 395# define USE_MUTEXES 1 396 397extern void eMmutex_destroy(eMmutex_t *, char *, int); 398extern void eMmutex_enter(eMmutex_t *, char *, int); 399extern void eMmutex_exit(eMmutex_t *, char *, int); 400extern void eMmutex_init(eMmutex_t *, char *, char *, int); 401extern void eMrwlock_destroy(eMrwlock_t *); 402extern void eMrwlock_exit(eMrwlock_t *); 403extern void eMrwlock_init(eMrwlock_t *, char *); 404extern void eMrwlock_read_enter(eMrwlock_t *, char *, int); 405extern void eMrwlock_write_enter(eMrwlock_t *, char *, int); 406extern void eMrwlock_downgrade(eMrwlock_t *, char *, int); 407 408#endif 409 410extern mb_t *allocmbt(size_t); 411 412#define MAX_IPV4HDR ((0xf << 2) + sizeof(struct icmp) + sizeof(ip_t) + 8) 413 414#ifndef IP_OFFMASK 415# define IP_OFFMASK 0x1fff 416#endif 417 418 419/* 420 * On BSD's use quad_t as a guarantee for getting at least a 64bit sized 421 * object. 422 */ 423#if !defined(__amd64__) && !SOLARIS 424# define USE_QUAD_T 425# define U_QUAD_T unsigned long long 426# define QUAD_T long long 427#else /* BSD */ 428# if !defined(U_QUAD_T) 429# define U_QUAD_T u_long 430# define QUAD_T long 431# endif 432#endif /* BSD */ 433 434 435#ifdef USE_INET6 436# if defined(__NetBSD__) || defined(__FreeBSD__) 437# include <netinet/ip6.h> 438# include <netinet/icmp6.h> 439# if defined(_KERNEL) 440# include <netinet6/ip6_var.h> 441# endif 442typedef struct ip6_hdr ip6_t; 443# endif 444#endif 445 446#ifndef MAX 447# define MAX(a,b) (((a) > (b)) ? (a) : (b)) 448#endif 449 450#if defined(_KERNEL) 451# if SOLARIS && !defined(INSTANCES) 452# define COPYDATA mb_copydata 453# define COPYBACK mb_copyback 454# else 455# define COPYDATA m_copydata 456# define COPYBACK m_copyback 457# endif 458# if (defined(__NetBSD_Version__) && (__NetBSD_Version__ < 105180000)) || \ 459 defined(__FreeBSD__) 460# include <vm/vm.h> 461# endif 462# if NETBSD_GE_REV(105180000) 463# include <uvm/uvm_extern.h> 464# else 465# include <vm/vm_extern.h> 466extern vm_map_t kmem_map; 467# endif 468# include <sys/proc.h> 469 470# ifdef IPFILTER_M_IPFILTER 471# include <sys/malloc.h> 472MALLOC_DECLARE(M_IPFILTER); 473# define _M_IPF M_IPFILTER 474# else /* IPFILTER_M_IPFILTER */ 475# ifdef M_PFIL 476# define _M_IPF M_PFIL 477# else 478# ifdef M_IPFILTER 479# define _M_IPF M_IPFILTER 480# else 481# define _M_IPF M_TEMP 482# endif /* M_IPFILTER */ 483# endif /* M_PFIL */ 484# endif /* IPFILTER_M_IPFILTER */ 485# if !defined(KMALLOC) 486# define KMALLOC(a, b) (a) = (b)malloc(sizeof(*(a)), _M_IPF, M_NOWAIT) 487# endif 488# if !defined(KMALLOCS) 489# define KMALLOCS(a, b, c) (a) = (b)malloc((c), _M_IPF, M_NOWAIT) 490# endif 491# if !defined(KFREE) 492# define KFREE(x) free((x), _M_IPF) 493# endif 494# if !defined(KFREES) 495# define KFREES(x,s) free((x), _M_IPF) 496# endif 497# define UIOMOVE(a,b,c,d) uiomove((caddr_t)a,b,d) 498# define SLEEP(id, n) tsleep((id), PPAUSE|PCATCH, n, 0) 499# define WAKEUP(id,x) wakeup(id+x) 500# if !defined(POLLWAKEUP) 501# define POLLWAKEUP(x) selwakeup(softc->ipf_selwait+x) 502# endif 503# define GETIFP(n, v) ifunit(n) 504# define GETIFMTU_4(x) ((struct ifnet *)x)->if_mtu 505# define GETIFMTU_6(x) ((struct ifnet *)x)->if_mtu 506 507# if !defined(USE_MUTEXES) && !defined(SPL_NET) 508# define SPL_IMP(x) x = splimp() 509# define SPL_NET(x) x = splnet() 510# if !defined(SPL_SCHED) 511# define SPL_SCHED(x) x = splsched() 512# endif 513# define SPL_X(x) (void) splx(x) 514# endif /* !USE_MUTEXES */ 515 516# ifndef FREE_MB_T 517# define FREE_MB_T(m) m_freem(m) 518# endif 519# ifndef ALLOC_MB_T 520# ifdef MGETHDR 521# define ALLOC_MB_T(m,l) do { \ 522 MGETHDR((m), M_NOWAIT, MT_HEADER); \ 523 if ((m) != NULL) { \ 524 (m)->m_len = (l); \ 525 (m)->m_pkthdr.len = (l); \ 526 } \ 527 } while (0) 528# else 529# define ALLOC_MB_T(m,l) do { \ 530 MGET((m), M_NOWAIT, MT_HEADER); \ 531 if ((m) != NULL) { \ 532 (m)->m_len = (l); \ 533 (m)->m_pkthdr.len = (l); \ 534 } \ 535 } while (0) 536# endif 537# endif 538# ifndef PREP_MB_T 539# define PREP_MB_T(f, m) do { \ 540 mb_t *_o = *(f)->fin_mp; \ 541 (m)->m_next = _o; \ 542 *(fin)->fin_mp = (m); \ 543 if (_o->m_flags & M_PKTHDR) { \ 544 (m)->m_pkthdr.len += \ 545 _o->m_pkthdr.len; \ 546 (m)->m_pkthdr.rcvif = \ 547 _o->m_pkthdr.rcvif; \ 548 } \ 549 } while (0) 550# endif 551# ifndef M_DUP 552# ifdef M_COPYALL 553# define M_DUP(m) m_dup(m, 0, M_COPYALL, 0) 554# else 555# define M_DUP(m) m_dup(m) 556# endif 557# endif 558 559# ifndef MTOD 560# define MTOD(m,t) mtod(m,t) 561# endif 562 563# ifndef COPYIN 564# define COPYIN(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 565# define COPYOUT(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 566# endif 567 568# if SOLARIS && !defined(KMALLOC) 569# define KMALLOC(a,b) (a) = (b)new_kmem_alloc(sizeof(*(a)), \ 570 KMEM_NOSLEEP) 571# define KMALLOCS(a,b,c) (a) = (b)new_kmem_alloc((c), KMEM_NOSLEEP) 572# endif 573 574# ifndef GET_MINOR 575# define GET_MINOR(x) dev2unit(x) 576# endif 577# define PANIC(x,y) if (x) panic y 578#endif /* _KERNEL */ 579 580#if !defined(IFNAME) && !defined(_KERNEL) 581# define IFNAME(x) get_ifname((struct ifnet *)x) 582#endif 583#ifndef COPYIFNAME 584# define NEED_FRGETIFNAME 585extern char *ipf_getifname(struct ifnet *, char *); 586# define COPYIFNAME(v, x, b) \ 587 ipf_getifname((struct ifnet *)x, b) 588#endif 589 590#ifndef ASSERT 591# ifdef _KERNEL 592# define ASSERT(x) 593# else 594# define ASSERT(x) do { if (!(x)) abort(); } while (0) 595# endif 596#endif 597 598#ifndef BCOPYIN 599# define BCOPYIN(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 600# define BCOPYOUT(a,b,c) (bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0) 601#endif 602 603/* 604 * Because the ctype(3) posix definition, if used "safely" in code everywhere, 605 * would mean all normal code that walks through strings needed casts. Yuck. 606 */ 607#define ISALNUM(x) isalnum((u_char)(x)) 608#define ISALPHA(x) isalpha((u_char)(x)) 609#define ISDIGIT(x) isdigit((u_char)(x)) 610#define ISSPACE(x) isspace((u_char)(x)) 611#define ISUPPER(x) isupper((u_char)(x)) 612#define ISXDIGIT(x) isxdigit((u_char)(x)) 613#define ISLOWER(x) islower((u_char)(x)) 614#define TOUPPER(x) toupper((u_char)(x)) 615#define TOLOWER(x) tolower((u_char)(x)) 616 617/* 618 * If mutexes aren't being used, turn all the mutex functions into null-ops. 619 */ 620#if !defined(USE_MUTEXES) 621# define USE_SPL 1 622# undef RW_DESTROY 623# undef MUTEX_INIT 624# undef MUTEX_NUKE 625# undef MUTEX_DESTROY 626# define MUTEX_ENTER(x) ; 627# define READ_ENTER(x) ; 628# define WRITE_ENTER(x) ; 629# define MUTEX_DOWNGRADE(x) ; 630# define MUTEX_TRY_UPGRADE(x) ; 631# define RWLOCK_INIT(x, y) ; 632# define RWLOCK_EXIT(x) ; 633# define RW_DESTROY(x) ; 634# define MUTEX_EXIT(x) ; 635# define MUTEX_INIT(x,y) ; 636# define MUTEX_DESTROY(x) ; 637# define MUTEX_NUKE(x) ; 638#endif /* !USE_MUTEXES */ 639#ifndef ATOMIC_INC 640# define ATOMIC_INC(x) (x)++ 641# define ATOMIC_DEC(x) (x)-- 642#endif 643 644#if defined(USE_SPL) && defined(_KERNEL) 645# define SPL_INT(x) int x 646#else 647# define SPL_INT(x) 648#endif 649 650/* 651 * If there are no atomic operations for bit sizes defined, define them to all 652 * use a generic one that works for all sizes. 653 */ 654#ifndef ATOMIC_INCL 655# define ATOMIC_INCL ATOMIC_INC 656# define ATOMIC_INC64 ATOMIC_INC 657# define ATOMIC_INC32 ATOMIC_INC 658# define ATOMIC_DECL ATOMIC_DEC 659# define ATOMIC_DEC64 ATOMIC_DEC 660# define ATOMIC_DEC32 ATOMIC_DEC 661#endif 662 663#ifndef HDR_T_PRIVATE 664typedef struct tcphdr tcphdr_t; 665typedef struct udphdr udphdr_t; 666#endif 667typedef struct icmp icmphdr_t; 668typedef struct ip ip_t; 669typedef struct ether_header ether_header_t; 670typedef struct tcpiphdr tcpiphdr_t; 671 672#ifndef FR_GROUPLEN 673# define FR_GROUPLEN 16 674#endif 675 676#ifndef offsetof 677# define offsetof(t,m) (size_t)((&((t *)0L)->m)) 678#endif 679#ifndef stsizeof 680# define stsizeof(t,m) sizeof(((t *)0L)->m) 681#endif 682 683/* 684 * This set of macros has been brought about because on Tru64 it is not 685 * possible to easily assign or examine values in a structure that are 686 * bit fields. 687 */ 688#ifndef IP_V 689# define IP_V(x) (x)->ip_v 690#endif 691#ifndef IP_V_A 692# define IP_V_A(x,y) (x)->ip_v = (y) 693#endif 694#ifndef IP_HL 695# define IP_HL(x) (x)->ip_hl 696#endif 697#ifndef IP_HL_A 698# define IP_HL_A(x,y) (x)->ip_hl = ((y) & 0xf) 699#endif 700#ifndef TCP_X2 701# define TCP_X2(x) (x)->th_x2 702#endif 703#ifndef TCP_X2_A 704# define TCP_X2_A(x,y) (x)->th_x2 = (y) 705#endif 706#ifndef TCP_OFF 707# define TCP_OFF(x) (x)->th_off 708#endif 709#ifndef TCP_OFF_A 710# define TCP_OFF_A(x,y) (x)->th_off = (y) 711#endif 712#define IPMINLEN(i, h) ((i)->ip_len >= (IP_HL(i) * 4 + sizeof(struct h))) 713 714#define TCPF_ALL (TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG|\ 715 TH_ECN|TH_CWR) 716 717#if !SOLARIS && !defined(m_act) 718# define m_act m_nextpkt 719#endif 720 721/* 722 * Security Options for Intenet Protocol (IPSO) as defined in RFC 1108. 723 * 724 * Basic Option 725 * 726 * 00000001 - (Reserved 4) 727 * 00111101 - Top Secret 728 * 01011010 - Secret 729 * 10010110 - Confidential 730 * 01100110 - (Reserved 3) 731 * 11001100 - (Reserved 2) 732 * 10101011 - Unclassified 733 * 11110001 - (Reserved 1) 734 */ 735#define IPSO_CLASS_RES4 0x01 736#define IPSO_CLASS_TOPS 0x3d 737#define IPSO_CLASS_SECR 0x5a 738#define IPSO_CLASS_CONF 0x96 739#define IPSO_CLASS_RES3 0x66 740#define IPSO_CLASS_RES2 0xcc 741#define IPSO_CLASS_UNCL 0xab 742#define IPSO_CLASS_RES1 0xf1 743 744#define IPSO_AUTH_GENSER 0x80 745#define IPSO_AUTH_ESI 0x40 746#define IPSO_AUTH_SCI 0x20 747#define IPSO_AUTH_NSA 0x10 748#define IPSO_AUTH_DOE 0x08 749#define IPSO_AUTH_UN 0x06 750#define IPSO_AUTH_FTE 0x01 751 752/* 753 * IP option #defines 754 */ 755#undef IPOPT_RR 756#define IPOPT_RR 7 757#undef IPOPT_ZSU 758#define IPOPT_ZSU 10 /* ZSU */ 759#undef IPOPT_MTUP 760#define IPOPT_MTUP 11 /* MTUP */ 761#undef IPOPT_MTUR 762#define IPOPT_MTUR 12 /* MTUR */ 763#undef IPOPT_ENCODE 764#define IPOPT_ENCODE 15 /* ENCODE */ 765#undef IPOPT_TS 766#define IPOPT_TS 68 767#undef IPOPT_TR 768#define IPOPT_TR 82 /* TR */ 769#undef IPOPT_SECURITY 770#define IPOPT_SECURITY 130 771#undef IPOPT_LSRR 772#define IPOPT_LSRR 131 773#undef IPOPT_E_SEC 774#define IPOPT_E_SEC 133 /* E-SEC */ 775#undef IPOPT_CIPSO 776#define IPOPT_CIPSO 134 /* CIPSO */ 777#undef IPOPT_SATID 778#define IPOPT_SATID 136 779#ifndef IPOPT_SID 780# define IPOPT_SID IPOPT_SATID 781#endif 782#undef IPOPT_SSRR 783#define IPOPT_SSRR 137 784#undef IPOPT_ADDEXT 785#define IPOPT_ADDEXT 147 /* ADDEXT */ 786#undef IPOPT_VISA 787#define IPOPT_VISA 142 /* VISA */ 788#undef IPOPT_IMITD 789#define IPOPT_IMITD 144 /* IMITD */ 790#undef IPOPT_EIP 791#define IPOPT_EIP 145 /* EIP */ 792#undef IPOPT_RTRALRT 793#define IPOPT_RTRALRT 148 /* RTRALRT */ 794#undef IPOPT_SDB 795#define IPOPT_SDB 149 796#undef IPOPT_NSAPA 797#define IPOPT_NSAPA 150 798#undef IPOPT_DPS 799#define IPOPT_DPS 151 800#undef IPOPT_UMP 801#define IPOPT_UMP 152 802#undef IPOPT_FINN 803#define IPOPT_FINN 205 /* FINN */ 804#undef IPOPT_AH 805#define IPOPT_AH 256+IPPROTO_AH 806 807#define ICMP_UNREACH_ADMIN_PROHIBIT ICMP_UNREACH_FILTER_PROHIB 808#define ICMP_UNREACH_FILTER ICMP_UNREACH_FILTER_PROHIB 809 810#ifndef IPVERSION 811# define IPVERSION 4 812#endif 813#ifndef IPOPT_MINOFF 814# define IPOPT_MINOFF 4 815#endif 816#ifndef IPOPT_COPIED 817# define IPOPT_COPIED(x) ((x)&0x80) 818#endif 819#ifndef IPOPT_EOL 820# define IPOPT_EOL 0 821#endif 822#ifndef IPOPT_NOP 823# define IPOPT_NOP 1 824#endif 825#ifndef IP_MF 826# define IP_MF ((u_short)0x2000) 827#endif 828#ifndef ETHERTYPE_IP 829# define ETHERTYPE_IP ((u_short)0x0800) 830#endif 831#ifndef TH_FIN 832# define TH_FIN 0x01 833#endif 834#ifndef TH_SYN 835# define TH_SYN 0x02 836#endif 837#ifndef TH_RST 838# define TH_RST 0x04 839#endif 840#ifndef TH_PUSH 841# define TH_PUSH 0x08 842#endif 843#ifndef TH_ACK 844# define TH_ACK 0x10 845#endif 846#ifndef TH_URG 847# define TH_URG 0x20 848#endif 849#undef TH_ACKMASK 850#define TH_ACKMASK (TH_FIN|TH_SYN|TH_RST|TH_ACK) 851 852#ifndef IPOPT_EOL 853# define IPOPT_EOL 0 854#endif 855#ifndef IPOPT_NOP 856# define IPOPT_NOP 1 857#endif 858#ifndef IPOPT_RR 859# define IPOPT_RR 7 860#endif 861#ifndef IPOPT_TS 862# define IPOPT_TS 68 863#endif 864#ifndef IPOPT_SECURITY 865# define IPOPT_SECURITY 130 866#endif 867#ifndef IPOPT_LSRR 868# define IPOPT_LSRR 131 869#endif 870#ifndef IPOPT_SATID 871# define IPOPT_SATID 136 872#endif 873#ifndef IPOPT_SSRR 874# define IPOPT_SSRR 137 875#endif 876#ifndef IPOPT_SECUR_UNCLASS 877# define IPOPT_SECUR_UNCLASS ((u_short)0x0000) 878#endif 879#ifndef IPOPT_SECUR_CONFID 880# define IPOPT_SECUR_CONFID ((u_short)0xf135) 881#endif 882#ifndef IPOPT_SECUR_EFTO 883# define IPOPT_SECUR_EFTO ((u_short)0x789a) 884#endif 885#ifndef IPOPT_SECUR_MMMM 886# define IPOPT_SECUR_MMMM ((u_short)0xbc4d) 887#endif 888#ifndef IPOPT_SECUR_RESTR 889# define IPOPT_SECUR_RESTR ((u_short)0xaf13) 890#endif 891#ifndef IPOPT_SECUR_SECRET 892# define IPOPT_SECUR_SECRET ((u_short)0xd788) 893#endif 894#ifndef IPOPT_SECUR_TOPSECRET 895# define IPOPT_SECUR_TOPSECRET ((u_short)0x6bc5) 896#endif 897#ifndef IPOPT_OLEN 898# define IPOPT_OLEN 1 899#endif 900#ifndef IPPROTO_HOPOPTS 901# define IPPROTO_HOPOPTS 0 902#endif 903#ifndef IPPROTO_IPIP 904# define IPPROTO_IPIP 4 905#endif 906#ifndef IPPROTO_ENCAP 907# define IPPROTO_ENCAP 98 908#endif 909#ifndef IPPROTO_IPV6 910# define IPPROTO_IPV6 41 911#endif 912#ifndef IPPROTO_ROUTING 913# define IPPROTO_ROUTING 43 914#endif 915#ifndef IPPROTO_FRAGMENT 916# define IPPROTO_FRAGMENT 44 917#endif 918#ifndef IPPROTO_GRE 919# define IPPROTO_GRE 47 /* GRE encaps RFC 1701 */ 920#endif 921#ifndef IPPROTO_ESP 922# define IPPROTO_ESP 50 923#endif 924#ifndef IPPROTO_AH 925# define IPPROTO_AH 51 926#endif 927#ifndef IPPROTO_ICMPV6 928# define IPPROTO_ICMPV6 58 929#endif 930#ifndef IPPROTO_NONE 931# define IPPROTO_NONE 59 932#endif 933#ifndef IPPROTO_DSTOPTS 934# define IPPROTO_DSTOPTS 60 935#endif 936#ifndef IPPROTO_MOBILITY 937# define IPPROTO_MOBILITY 135 938#endif 939 940#ifndef ICMP_ROUTERADVERT 941# define ICMP_ROUTERADVERT 9 942#endif 943#ifndef ICMP_ROUTERSOLICIT 944# define ICMP_ROUTERSOLICIT 10 945#endif 946#ifndef ICMP6_DST_UNREACH 947# define ICMP6_DST_UNREACH 1 948#endif 949#ifndef ICMP6_PACKET_TOO_BIG 950# define ICMP6_PACKET_TOO_BIG 2 951#endif 952#ifndef ICMP6_TIME_EXCEEDED 953# define ICMP6_TIME_EXCEEDED 3 954#endif 955#ifndef ICMP6_PARAM_PROB 956# define ICMP6_PARAM_PROB 4 957#endif 958 959#ifndef ICMP6_ECHO_REQUEST 960# define ICMP6_ECHO_REQUEST 128 961#endif 962#ifndef ICMP6_ECHO_REPLY 963# define ICMP6_ECHO_REPLY 129 964#endif 965#ifndef ICMP6_MEMBERSHIP_QUERY 966# define ICMP6_MEMBERSHIP_QUERY 130 967#endif 968#ifndef MLD6_LISTENER_QUERY 969# define MLD6_LISTENER_QUERY 130 970#endif 971#ifndef ICMP6_MEMBERSHIP_REPORT 972# define ICMP6_MEMBERSHIP_REPORT 131 973#endif 974#ifndef MLD6_LISTENER_REPORT 975# define MLD6_LISTENER_REPORT 131 976#endif 977#ifndef ICMP6_MEMBERSHIP_REDUCTION 978# define ICMP6_MEMBERSHIP_REDUCTION 132 979#endif 980#ifndef MLD6_LISTENER_DONE 981# define MLD6_LISTENER_DONE 132 982#endif 983#ifndef ND_ROUTER_SOLICIT 984# define ND_ROUTER_SOLICIT 133 985#endif 986#ifndef ND_ROUTER_ADVERT 987# define ND_ROUTER_ADVERT 134 988#endif 989#ifndef ND_NEIGHBOR_SOLICIT 990# define ND_NEIGHBOR_SOLICIT 135 991#endif 992#ifndef ND_NEIGHBOR_ADVERT 993# define ND_NEIGHBOR_ADVERT 136 994#endif 995#ifndef ND_REDIRECT 996# define ND_REDIRECT 137 997#endif 998#ifndef ICMP6_ROUTER_RENUMBERING 999# define ICMP6_ROUTER_RENUMBERING 138 1000#endif 1001#ifndef ICMP6_WRUREQUEST 1002# define ICMP6_WRUREQUEST 139 1003#endif 1004#ifndef ICMP6_WRUREPLY 1005# define ICMP6_WRUREPLY 140 1006#endif 1007#ifndef ICMP6_FQDN_QUERY 1008# define ICMP6_FQDN_QUERY 139 1009#endif 1010#ifndef ICMP6_FQDN_REPLY 1011# define ICMP6_FQDN_REPLY 140 1012#endif 1013#ifndef ICMP6_NI_QUERY 1014# define ICMP6_NI_QUERY 139 1015#endif 1016#ifndef ICMP6_NI_REPLY 1017# define ICMP6_NI_REPLY 140 1018#endif 1019#ifndef MLD6_MTRACE_RESP 1020# define MLD6_MTRACE_RESP 200 1021#endif 1022#ifndef MLD6_MTRACE 1023# define MLD6_MTRACE 201 1024#endif 1025#ifndef ICMP6_HADISCOV_REQUEST 1026# define ICMP6_HADISCOV_REQUEST 202 1027#endif 1028#ifndef ICMP6_HADISCOV_REPLY 1029# define ICMP6_HADISCOV_REPLY 203 1030#endif 1031#ifndef ICMP6_MOBILEPREFIX_SOLICIT 1032# define ICMP6_MOBILEPREFIX_SOLICIT 204 1033#endif 1034#ifndef ICMP6_MOBILEPREFIX_ADVERT 1035# define ICMP6_MOBILEPREFIX_ADVERT 205 1036#endif 1037#ifndef ICMP6_MAXTYPE 1038# define ICMP6_MAXTYPE 205 1039#endif 1040 1041#ifndef ICMP6_DST_UNREACH_NOROUTE 1042# define ICMP6_DST_UNREACH_NOROUTE 0 1043#endif 1044#ifndef ICMP6_DST_UNREACH_ADMIN 1045# define ICMP6_DST_UNREACH_ADMIN 1 1046#endif 1047#ifndef ICMP6_DST_UNREACH_NOTNEIGHBOR 1048# define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 1049#endif 1050#ifndef ICMP6_DST_UNREACH_BEYONDSCOPE 1051# define ICMP6_DST_UNREACH_BEYONDSCOPE 2 1052#endif 1053#ifndef ICMP6_DST_UNREACH_ADDR 1054# define ICMP6_DST_UNREACH_ADDR 3 1055#endif 1056#ifndef ICMP6_DST_UNREACH_NOPORT 1057# define ICMP6_DST_UNREACH_NOPORT 4 1058#endif 1059#ifndef ICMP6_TIME_EXCEED_TRANSIT 1060# define ICMP6_TIME_EXCEED_TRANSIT 0 1061#endif 1062#ifndef ICMP6_TIME_EXCEED_REASSEMBLY 1063# define ICMP6_TIME_EXCEED_REASSEMBLY 1 1064#endif 1065 1066#ifndef ICMP6_NI_SUCCESS 1067# define ICMP6_NI_SUCCESS 0 1068#endif 1069#ifndef ICMP6_NI_REFUSED 1070# define ICMP6_NI_REFUSED 1 1071#endif 1072#ifndef ICMP6_NI_UNKNOWN 1073# define ICMP6_NI_UNKNOWN 2 1074#endif 1075 1076#ifndef ICMP6_ROUTER_RENUMBERING_COMMAND 1077# define ICMP6_ROUTER_RENUMBERING_COMMAND 0 1078#endif 1079#ifndef ICMP6_ROUTER_RENUMBERING_RESULT 1080# define ICMP6_ROUTER_RENUMBERING_RESULT 1 1081#endif 1082#ifndef ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 1083# define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 1084#endif 1085 1086#ifndef ICMP6_PARAMPROB_HEADER 1087# define ICMP6_PARAMPROB_HEADER 0 1088#endif 1089#ifndef ICMP6_PARAMPROB_NEXTHEADER 1090# define ICMP6_PARAMPROB_NEXTHEADER 1 1091#endif 1092#ifndef ICMP6_PARAMPROB_OPTION 1093# define ICMP6_PARAMPROB_OPTION 2 1094#endif 1095 1096#ifndef ICMP6_NI_SUBJ_IPV6 1097# define ICMP6_NI_SUBJ_IPV6 0 1098#endif 1099#ifndef ICMP6_NI_SUBJ_FQDN 1100# define ICMP6_NI_SUBJ_FQDN 1 1101#endif 1102#ifndef ICMP6_NI_SUBJ_IPV4 1103# define ICMP6_NI_SUBJ_IPV4 2 1104#endif 1105 1106#ifndef MLD_MTRACE_RESP 1107# define MLD_MTRACE_RESP 200 1108#endif 1109#ifndef MLD_MTRACE 1110# define MLD_MTRACE 201 1111#endif 1112#ifndef MLD6_MTRACE_RESP 1113# define MLD6_MTRACE_RESP MLD_MTRACE_RESP 1114#endif 1115#ifndef MLD6_MTRACE 1116# define MLD6_MTRACE MLD_MTRACE 1117#endif 1118 1119#if !defined(IPV6_FLOWINFO_MASK) 1120# if (BYTE_ORDER == BIG_ENDIAN) || defined(_BIG_ENDIAN) 1121# define IPV6_FLOWINFO_MASK 0x0fffffff /* flow info (28 bits) */ 1122# else 1123# if(BYTE_ORDER == LITTLE_ENDIAN) || !defined(_BIG_ENDIAN) 1124# define IPV6_FLOWINFO_MASK 0xffffff0f /* flow info (28 bits) */ 1125# endif /* LITTLE_ENDIAN */ 1126# endif 1127#endif 1128#if !defined(IPV6_FLOWLABEL_MASK) 1129# if (BYTE_ORDER == BIG_ENDIAN) || defined(_BIG_ENDIAN) 1130# define IPV6_FLOWLABEL_MASK 0x000fffff /* flow label (20 bits) */ 1131# else 1132# if (BYTE_ORDER == LITTLE_ENDIAN) || !defined(_BIG_ENDIAN) 1133# define IPV6_FLOWLABEL_MASK 0xffff0f00 /* flow label (20 bits) */ 1134# endif /* LITTLE_ENDIAN */ 1135# endif 1136#endif 1137 1138/* 1139 * ECN is a new addition to TCP - RFC 2481 1140 */ 1141#ifndef TH_ECN 1142# define TH_ECN 0x40 1143#endif 1144#ifndef TH_CWR 1145# define TH_CWR 0x80 1146#endif 1147#define TH_ECNALL (TH_ECN|TH_CWR) 1148 1149/* 1150 * TCP States 1151 */ 1152#define IPF_TCPS_LISTEN 0 /* listening for connection */ 1153#define IPF_TCPS_SYN_SENT 1 /* active, have sent syn */ 1154#define IPF_TCPS_SYN_RECEIVED 2 /* have send and received syn */ 1155#define IPF_TCPS_HALF_ESTAB 3 /* for connections not fully "up" */ 1156/* states < IPF_TCPS_ESTABLISHED are those where connections not established */ 1157#define IPF_TCPS_ESTABLISHED 4 /* established */ 1158#define IPF_TCPS_CLOSE_WAIT 5 /* rcvd fin, waiting for close */ 1159/* states > IPF_TCPS_CLOSE_WAIT are those where user has closed */ 1160#define IPF_TCPS_FIN_WAIT_1 6 /* have closed, sent fin */ 1161#define IPF_TCPS_CLOSING 7 /* closed xchd FIN; await FIN ACK */ 1162#define IPF_TCPS_LAST_ACK 8 /* had fin and close; await FIN ACK */ 1163/* states > IPF_TCPS_CLOSE_WAIT && < IPF_TCPS_FIN_WAIT_2 await ACK of FIN */ 1164#define IPF_TCPS_FIN_WAIT_2 9 /* have closed, fin is acked */ 1165#define IPF_TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ 1166#define IPF_TCPS_CLOSED 11 /* closed */ 1167#define IPF_TCP_NSTATES 12 1168 1169#define TCP_MSL 120 1170 1171#undef ICMP_MAX_UNREACH 1172#define ICMP_MAX_UNREACH 14 1173#undef ICMP_MAXTYPE 1174#define ICMP_MAXTYPE 18 1175 1176#ifndef LOG_FTP 1177# define LOG_FTP (11<<3) 1178#endif 1179#ifndef LOG_AUTHPRIV 1180# define LOG_AUTHPRIV (10<<3) 1181#endif 1182#ifndef LOG_AUDIT 1183# define LOG_AUDIT (13<<3) 1184#endif 1185#ifndef LOG_NTP 1186# define LOG_NTP (12<<3) 1187#endif 1188#ifndef LOG_SECURITY 1189# define LOG_SECURITY (13<<3) 1190#endif 1191#ifndef LOG_LFMT 1192# define LOG_LFMT (14<<3) 1193#endif 1194#ifndef LOG_CONSOLE 1195# define LOG_CONSOLE (14<<3) 1196#endif 1197 1198/* 1199 * ICMP error replies have an IP header (20 bytes), 8 bytes of ICMP data, 1200 * another IP header and then 64 bits of data, totalling 56. Of course, 1201 * the last 64 bits is dependent on that being available. 1202 */ 1203#define ICMPERR_ICMPHLEN 8 1204#define ICMPERR_IPICMPHLEN (20 + 8) 1205#define ICMPERR_MINPKTLEN (20 + 8 + 20) 1206#define ICMPERR_MAXPKTLEN (20 + 8 + 20 + 8) 1207#define ICMP6ERR_MINPKTLEN (40 + 8) 1208#define ICMP6ERR_IPICMPHLEN (40 + 8 + 40) 1209 1210#ifndef MIN 1211# define MIN(a,b) (((a)<(b))?(a):(b)) 1212#endif 1213 1214#ifdef RESCUE 1215# undef IPFILTER_BPF 1216#endif 1217 1218#ifdef IPF_DEBUG 1219# define DPRINT(x) printf x 1220#else 1221# define DPRINT(x) 1222#endif 1223 1224#ifdef DTRACE_PROBE 1225# ifdef _KERNEL 1226# define DT(_n) DTRACE_PROBE(_n) 1227# define DT1(_n,_a,_b) DTRACE_PROBE1(_n,_a,_b) 1228# define DT2(_n,_a,_b,_c,_d) DTRACE_PROBE2(_n,_a,_b,_c,_d) 1229# define DT3(_n,_a,_b,_c,_d,_e,_f) \ 1230 DTRACE_PROBE3(_n,_a,_b,_c,_d,_e,_f) 1231# define DT4(_n,_a,_b,_c,_d,_e,_f,_g,_h) \ 1232 DTRACE_PROBE4(_n,_a,_b,_c,_d,_e,_f,_g,_h) 1233# else 1234# define DT(_n) 1235# define DT1(_n,_a,_b) 1236# define DT2(_n,_a,_b,_c,_d) 1237# define DT3(_n,_a,_b,_c,_d,_e,_f) 1238# define DT4(_n,_a,_b,_c,_d,_e,_f,_g,_h) 1239# endif 1240#else 1241# define DT(_n) 1242# define DT1(_n,_a,_b) 1243# define DT2(_n,_a,_b,_c,_d) 1244# define DT3(_n,_a,_b,_c,_d,_e,_f) 1245# define DT4(_n,_a,_b,_c,_d,_e,_f,_g,_h) 1246#endif 1247 1248struct ip6_routing { 1249 u_char ip6r_nxt; /* next header */ 1250 u_char ip6r_len; /* length in units of 8 octets */ 1251 u_char ip6r_type; /* always zero */ 1252 u_char ip6r_segleft; /* segments left */ 1253 u_32_t ip6r_reserved; /* reserved field */ 1254}; 1255 1256#endif /* __IP_COMPAT_H__ */ 1257