ip_compat.h revision 183397
1/*
2 * Copyright (C) 1993-2001, 2003 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: head/sys/contrib/ipfilter/netinet/ip_compat.h 183397 2008-09-27 08:51:18Z ed $
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#ifndef	__P
15# ifdef	__STDC__
16#  define	__P(x)  x
17# else
18#  define	__P(x)  ()
19# endif
20#endif
21#ifndef	__STDC__
22# undef		const
23# define	const
24#endif
25
26#if defined(_KERNEL) || defined(KERNEL) || defined(__KERNEL__)
27# undef	KERNEL
28# undef	_KERNEL
29# undef 	__KERNEL__
30# define	KERNEL
31# define	_KERNEL
32# define 	__KERNEL__
33#endif
34
35#ifndef	SOLARIS
36#define	SOLARIS	(defined(sun) && (defined(__svr4__) || defined(__SVR4)))
37#endif
38#if (defined(SOLARIS2) && (SOLARIS2 >= 8))
39# ifndef	USE_INET6
40#  define	USE_INET6
41# endif
42#endif
43#if defined(__FreeBSD_version) && (__FreeBSD_version >= 400000) && \
44    !defined(_KERNEL) && !defined(USE_INET6) && !defined(NOINET6)
45# define	USE_INET6
46#endif
47#if defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 105000000) && \
48    !defined(_KERNEL) && !defined(USE_INET6)
49# define	USE_INET6
50# define	IPFILTER_M_IPFILTER
51#endif
52#if defined(OpenBSD) && (OpenBSD >= 200206) && \
53    !defined(_KERNEL) && !defined(USE_INET6)
54# define	USE_INET6
55#endif
56#if defined(__osf__)
57# define	USE_INET6
58#endif
59#if defined(linux) && (!defined(_KERNEL) || defined(CONFIG_IPV6))
60# define	USE_INET6
61#endif
62#if defined(HPUXREV) && (HPUXREV >= 1111)
63# define	USE_INET6
64#endif
65
66#if defined(BSD) && (BSD < 199103) && defined(__osf__)
67# undef BSD
68# define BSD 199103
69#endif
70
71#if defined(__SVR4) || defined(__svr4__) || defined(__sgi)
72# define index   strchr
73# if !defined(_KERNEL)
74#  define	bzero(a,b)	memset(a,0,b)
75#  define	bcmp		memcmp
76#  define	bcopy(a,b,c)	memmove(b,a,c)
77# endif
78#endif
79
80#ifndef LIFNAMSIZ
81# ifdef IF_NAMESIZE
82#  define	LIFNAMSIZ	IF_NAMESIZE
83# else
84#  ifdef	IFNAMSIZ
85#   define	LIFNAMSIZ	IFNAMSIZ
86#  else
87#   define	LIFNAMSIZ	16
88#  endif
89# endif
90#endif
91
92#if defined(__sgi) || defined(bsdi) || defined(__hpux) || defined(hpux)
93struct  ether_addr {
94        u_char  ether_addr_octet[6];
95};
96#endif
97
98#if defined(__sgi) && !defined(IPFILTER_LKM)
99# ifdef __STDC__
100#  define IPL_EXTERN(ep) ipfilter##ep
101# else
102#  define IPL_EXTERN(ep) ipfilter/**/ep
103# endif
104#else
105# ifdef __STDC__
106#  define IPL_EXTERN(ep) ipl##ep
107# else
108#  define IPL_EXTERN(ep) ipl/**/ep
109# endif
110#endif
111
112/*
113 * This is a workaround for <sys/uio.h> troubles on FreeBSD and OpenBSD.
114 */
115#ifndef linux
116# ifndef _KERNEL
117#  define ADD_KERNEL
118#  define _KERNEL
119#  define KERNEL
120# endif
121# ifdef __OpenBSD__
122struct file;
123# endif
124# include <sys/uio.h>
125# ifdef ADD_KERNEL
126#  undef _KERNEL
127#  undef KERNEL
128# endif
129#endif
130
131
132/* ----------------------------------------------------------------------- */
133/*                                  S O L A R I S                          */
134/* ----------------------------------------------------------------------- */
135#if SOLARIS
136# define	MENTAT	1
137# include	<sys/cmn_err.h>
138# include	<sys/isa_defs.h>
139# include	<sys/stream.h>
140# include	<sys/ioccom.h>
141# include	<sys/sysmacros.h>
142# include	<sys/kmem.h>
143# if defined(SOLARIS2) && SOLARIS2 >= 10
144#  include	<sys/procset.h>
145#  include	<sys/proc.h>
146#  include	<sys/devops.h>
147#  include	<sys/ddi_impldefs.h>
148# endif
149/*
150 * because Solaris 2 defines these in two places :-/
151 */
152# ifndef	KERNEL
153#  define	_KERNEL
154#  undef	RES_INIT
155# endif /* _KERNEL */
156
157# if defined(SOLARIS2) && SOLARIS2 >= 8
158#  include <netinet/ip6.h>
159#  include <netinet/icmp6.h>
160# endif
161
162# include <inet/common.h>
163/* These 5 are defined in <inet/ip.h> and <netinet/ip.h> */
164# undef	IPOPT_EOL
165# undef	IPOPT_NOP
166# undef	IPOPT_LSRR
167# undef	IPOPT_RR
168# undef	IPOPT_SSRR
169# ifdef i386
170#  define _SYS_PROMIF_H
171# endif
172# ifndef _KERNEL
173#  include "radix_ipf.h"
174# else
175#  include "radix_ipf_local.h"
176# endif
177# include <inet/ip.h>
178# undef COPYOUT
179# include <inet/ip_ire.h>
180# ifndef	KERNEL
181#  undef	_KERNEL
182# endif
183# if defined(SOLARIS2) && SOLARIS2 >= 8
184#  define SNPRINTF	snprintf
185
186#  include <inet/ip_if.h>
187#  define	ipif_local_addr	ipif_lcl_addr
188/* Only defined in private include file */
189#  ifndef	V4_PART_OF_V6
190#   define	V4_PART_OF_V6(v6)	v6.s6_addr32[3]
191#  endif
192struct ip6_ext {
193	u_char	ip6e_nxt;
194	u_char	ip6e_len;
195};
196# endif /* SOLARIS2 >= 8 */
197
198# if defined(SOLARIS2) && SOLARIS2 >= 6
199#  include <sys/atomic.h>
200typedef	uint32_t	u_32_t;
201# else
202typedef unsigned int	u_32_t;
203# endif
204# define	U_32_T	1
205
206# ifdef _KERNEL
207#  define	NEED_LOCAL_RAND	1
208#  define	ipf_random		arc4random
209#  define	KRWLOCK_T		krwlock_t
210#  define	KMUTEX_T		kmutex_t
211
212#  if !defined(FW_HOOKS)
213#   include "qif.h"
214#   include "pfil.h"
215#  else
216#   include <sys/neti.h>
217
218extern net_data_t ipfipv4;
219extern net_data_t ipfipv6;
220
221typedef struct qpktinfo {
222        void		*qpi_data;
223	mblk_t		**qpi_mp;
224	mblk_t		*qpi_m;
225        uintptr_t	qpi_real;
226	int		qpi_flags;
227        int		qpi_num;
228        int		qpi_off;
229} qpktinfo_t;
230#   define	QF_GROUP		0x01
231#  endif
232
233#  if SOLARIS2 >= 6
234#   if SOLARIS2 == 6
235#    define	ATOMIC_INCL(x)		atomic_add_long((uint32_t*)&(x), 1)
236#    define	ATOMIC_DECL(x)		atomic_add_long((uint32_t*)&(x), -1)
237#   else
238#    define	ATOMIC_INCL(x)		atomic_add_long(&(x), 1)
239#    define	ATOMIC_DECL(x)		atomic_add_long(&(x), -1)
240#   endif /* SOLARIS2 == 6 */
241#   define	ATOMIC_INC64(x)		atomic_add_64((uint64_t*)&(x), 1)
242#   define	ATOMIC_INC32(x)		atomic_add_32((uint32_t*)&(x), 1)
243#   define	ATOMIC_INC16(x)		atomic_add_16((uint16_t*)&(x), 1)
244#   define	ATOMIC_DEC64(x)		atomic_add_64((uint64_t*)&(x), -1)
245#   define	ATOMIC_DEC32(x)		atomic_add_32((uint32_t*)&(x), -1)
246#   define	ATOMIC_DEC16(x)		atomic_add_16((uint16_t*)&(x), -1)
247#  else
248#   define	ATOMIC_INC(x)		{ mutex_enter(&ipf_rw); (x)++; \
249					  mutex_exit(&ipf_rw); }
250#   define	ATOMIC_DEC(x)		{ mutex_enter(&ipf_rw); (x)--; \
251					  mutex_exit(&ipf_rw); }
252#  endif /* SOLARIS2 >= 6 */
253#  define	USE_MUTEXES
254#  define	MUTEX_ENTER(x)		mutex_enter(&(x)->ipf_lk)
255#  define	READ_ENTER(x)		rw_enter(&(x)->ipf_lk, RW_READER)
256#  define	WRITE_ENTER(x)		rw_enter(&(x)->ipf_lk, RW_WRITER)
257#  define	MUTEX_DOWNGRADE(x)	rw_downgrade(&(x)->ipf_lk)
258#  define	RWLOCK_INIT(x, y)	rw_init(&(x)->ipf_lk, (y),  \
259						RW_DRIVER, NULL)
260#  define	RWLOCK_EXIT(x)		rw_exit(&(x)->ipf_lk)
261#  define	RW_DESTROY(x)		rw_destroy(&(x)->ipf_lk)
262#  define	MUTEX_INIT(x, y)	mutex_init(&(x)->ipf_lk, (y), \
263						   MUTEX_DRIVER, NULL)
264#  define	MUTEX_DESTROY(x)	mutex_destroy(&(x)->ipf_lk)
265#  define	MUTEX_NUKE(x)		bzero((x), sizeof(*(x)))
266#  define	MUTEX_EXIT(x)		mutex_exit(&(x)->ipf_lk)
267#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
268#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
269#  define	BCOPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
270#  define	BCOPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
271#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
272#  define	KFREE(x)	kmem_free((char *)(x), sizeof(*(x)))
273#  define	KFREES(x,s)	kmem_free((char *)(x), (s))
274#  define	SPL_SCHED(x)	;
275#  define	SPL_NET(x)	;
276#  define	SPL_IMP(x)	;
277#  undef	SPL_X
278#  define	SPL_X(x)	;
279#  ifdef sparc
280#   define	ntohs(x)	(x)
281#   define	ntohl(x)	(x)
282#   define	htons(x)	(x)
283#   define	htonl(x)	(x)
284#  endif /* sparc */
285#  define	KMALLOC(a,b)	(a) = (b)kmem_alloc(sizeof(*(a)), KM_NOSLEEP)
286#  define	KMALLOCS(a,b,c)	(a) = (b)kmem_alloc((c), KM_NOSLEEP)
287#  define	GET_MINOR(x)	getminor(x)
288extern	void	*get_unit __P((char *, int));
289#  define	GETIFP(n, v)	get_unit(n, v)
290#  if defined(_INET_IP_STACK_H)
291#   define	 COPYIFNAME(v, x, b) \
292				do { \
293					if ((v) == 4) { \
294						(void) net_getifname(ipfipv4,\
295							(uintptr_t)x, b, \
296							LIFNAMSIZ); \
297					} else { \
298						(void) net_getifname(ipfipv6,\
299							(uintptr_t)x, b, \
300							LIFNAMSIZ); \
301					} \
302				} while (0)
303#  else
304#   define	 COPYIFNAME(v, x, b) \
305				(void) strncpy(b, ((qif_t *)x)->qf_name, \
306					       LIFNAMSIZ)
307#  endif
308#  define	GETKTIME(x)	uniqtime((struct timeval *)x)
309#  define	MSGDSIZE(x)	msgdsize(x)
310#  define	M_LEN(x)	((x)->b_wptr - (x)->b_rptr)
311#  define	M_DUPLICATE(x)	dupmsg((x))
312#  define	MTOD(m,t)	((t)((m)->b_rptr))
313#  define	MTYPE(m)	((m)->b_datap->db_type)
314#  define	FREE_MB_T(m)	freemsg(m)
315#  define	m_next		b_cont
316#  if !defined(_INET_IP_STACK_H)
317#   define	CACHE_HASH(x)	(((qpktinfo_t *)(x)->fin_qpi)->qpi_num & 7)
318#  else
319#   define	CACHE_HASH(x)	((uintptr_t)(x)->fin_ifp & 7)
320#  endif
321#  define	IPF_PANIC(x,y)	if (x) { printf y; cmn_err(CE_PANIC, "ipf_panic"); }
322typedef mblk_t mb_t;
323# endif /* _KERNEL */
324
325# if defined(SOLARIS2) && (SOLARIS2 >= 7)
326#  ifdef lint
327#   define ALIGN32(ptr)    (ptr ? 0L : 0L)
328#   define ALIGN16(ptr)    (ptr ? 0L : 0L)
329#  else
330#   define ALIGN32(ptr)    (ptr)
331#   define ALIGN16(ptr)    (ptr)
332#  endif
333# endif
334
335# if defined(SOLARIS2) && SOLARIS2 < 6
336typedef	struct uio	uio_t;
337# endif
338typedef	int		ioctlcmd_t;
339typedef	uint8_t		u_int8_t;
340
341# define OS_RECOGNISED 1
342
343#endif /* SOLARIS */
344
345/* ----------------------------------------------------------------------- */
346/*                                  H P U X                                */
347/* ----------------------------------------------------------------------- */
348#ifdef __hpux
349# define	MENTAT	1
350# include	<sys/sysmacros.h>
351# include	<sys/spinlock.h>
352# include	<sys/lock.h>
353# include	<sys/stream.h>
354# ifdef USE_INET6
355#  include	<netinet/if_ether.h>
356#  include	<netinet/ip6.h>
357#  include	<netinet/icmp6.h>
358typedef	struct	ip6_hdr	ip6_t;
359# endif
360
361# ifdef _KERNEL
362#  define SNPRINTF	sprintf
363#  if (HPUXREV >= 1111)
364#   define	IPL_SELECT
365#   ifdef	IPL_SELECT
366#    include	<machine/sys/user.h>
367#    include	<sys/kthread_iface.h>
368#    define	READ_COLLISION	0x01
369
370typedef	struct	iplog_select_s {
371	kthread_t	*read_waiter;
372	int		state;
373} iplog_select_t;
374#   endif
375#  endif
376
377#  define	GETKTIME(x)	uniqtime((struct timeval *)x)
378
379#  if HPUXREV == 1111
380#   include	"kern_svcs.h"
381#  else
382#   include	<sys/kern_svcs.h>
383#  endif
384#  undef	ti_flags
385#  undef	TCP_NODELAY
386#  undef	TCP_MAXSEG
387#  include <sys/reg.h>
388#  include "../netinet/ip_info.h"
389/*
390 * According to /usr/include/sys/spinlock.h on HP-UX 11.00, these functions
391 * are available.  Attempting to use them actually results in unresolved
392 * symbols when it comes time to load the module.
393 * This has been fixed!  Yipee!
394 */
395#  if 1
396#   ifdef __LP64__
397#    define	ATOMIC_INCL(x)		lock_and_incr_int64(&ipf_rw.ipf_lk, &(x), 1)
398#    define	ATOMIC_DECL(x)		lock_and_incr_int64(&ipf_rw.ipf_lk, &(x), -1)
399#   else
400#    define	ATOMIC_INCL(x)		lock_and_incr_int32(&ipf_rw.ipf_lk, &(x), 1)
401#    define	ATOMIC_DECL(x)		lock_and_incr_int32(&ipf_rw.ipf_lk, &(x), -1)
402#   endif
403#   define	ATOMIC_INC64(x)		lock_and_incr_int64(&ipf_rw.ipf_lk, &(x), 1)
404#   define	ATOMIC_INC32(x)		lock_and_incr_int32(&ipf_rw.ipf_lk, &(x), 1)
405#   define	ATOMIC_INC16(x)		lock_and_incr_int16(&ipf_rw.ipf_lk, &(x), 1)
406#   define	ATOMIC_DEC64(x)		lock_and_incr_int64(&ipf_rw.ipf_lk, &(x), -1)
407#   define	ATOMIC_DEC32(x)		lock_and_incr_int32(&ipf_rw.ipf_lk, &(x), -1)
408#   define	ATOMIC_DEC16(x)		lock_and_incr_int16(&ipf_rw.ipf_lk, &(x), -1)
409#  else /* 0 */
410#   define	ATOMIC_INC64(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
411					  MUTEX_EXIT(&ipf_rw); }
412#   define	ATOMIC_DEC64(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
413					  MUTEX_EXIT(&ipf_rw); }
414#   define	ATOMIC_INC32(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
415					  MUTEX_EXIT(&ipf_rw); }
416#   define	ATOMIC_DEC32(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
417					  MUTEX_EXIT(&ipf_rw); }
418#   define	ATOMIC_INCL(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
419					  MUTEX_EXIT(&ipf_rw); }
420#   define	ATOMIC_DECL(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
421					  MUTEX_EXIT(&ipf_rw); }
422#   define	ATOMIC_INC(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
423					  MUTEX_EXIT(&ipf_rw); }
424#   define	ATOMIC_DEC(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
425					  MUTEX_EXIT(&ipf_rw); }
426#  endif
427#  define	ip_cksum		ip_csuma
428#  define	memcpy(a,b,c)		bcopy((caddr_t)b, (caddr_t)a, c)
429#  define	USE_MUTEXES
430#  define	MUTEX_INIT(x, y)	initlock(&(x)->ipf_lk, 0, 0, (y))
431#  define	MUTEX_ENTER(x)		spinlock(&(x)->ipf_lk)
432#  define	MUTEX_EXIT(x)		spinunlock(&(x)->ipf_lk);
433#  define	MUTEX_DESTROY(x)
434#  define	MUTEX_NUKE(x)		bzero((char *)(x), sizeof(*(x)))
435#  define	KMUTEX_T		lock_t
436#  define	kmutex_t		lock_t		/* for pfil.h */
437#  define	krwlock_t		lock_t		/* for pfil.h */
438/*
439 * The read-write lock implementation in HP-UX 11.0 is crippled - it can
440 * only be used by threads working in a user context!
441 * This has been fixed!  Yipee! (Or at least it does in 11.00, not 11.11..)
442 */
443#  if HPUXREV < 1111
444#   define	MUTEX_DOWNGRADE(x)	lock_write_to_read(x)
445#   define	KRWLOCK_T		struct rw_lock
446#   define	READ_ENTER(x)		lock_read(&(x)->ipf_lk)
447#   define	WRITE_ENTER(x)		lock_write(&(x)->ipf_lk)
448#   if HPUXREV >= 1111
449#    define	RWLOCK_INIT(x, y)	rwlock_init4(&(x)->ipf_lk, 0, RWLCK_CANSLEEP, 0, y)
450#   else
451#    define	RWLOCK_INIT(x, y)	lock_init3(&(x)->ipf_lk, 0, 1, 0, 0, y)
452#   endif
453#   define	RWLOCK_EXIT(x)		lock_done(&(x)->ipf_lk)
454#  else
455#   define	KRWLOCK_T		lock_t
456#   define	KMUTEX_T		lock_t
457#   define	READ_ENTER(x)		MUTEX_ENTER(x)
458#   define	WRITE_ENTER(x)		MUTEX_ENTER(x)
459#   define	MUTEX_DOWNGRADE(x)
460#   define	RWLOCK_INIT(x, y)	initlock(&(x)->ipf_lk, 0, 0, y)
461#   define	RWLOCK_EXIT(x)		MUTEX_EXIT(x)
462#  endif
463#  define	RW_DESTROY(x)
464#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
465#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
466#  define	SPL_SCHED(x)	;
467#  define	SPL_NET(x)	;
468#  define	SPL_IMP(x)	;
469#  undef	SPL_X
470#  define	SPL_X(x)	;
471extern	void	*get_unit __P((char *, int));
472#  define	GETIFP(n, v)	get_unit(n, v)
473#  define	COPYIFNAME(v, x, b) \
474				(void) strncpy(b, ((qif_t *)x)->qf_name, \
475					       LIFNAMSIZ)
476#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
477#  define	SLEEP(id, n)	{ lock_t *_l = get_sleep_lock((caddr_t)id); \
478				  sleep(id, PZERO+1); \
479				  spinunlock(_l); \
480				}
481#  define	WAKEUP(id,x)	{ lock_t *_l = get_sleep_lock((caddr_t)id); \
482				  wakeup(id + x); \
483				  spinunlock(_l); \
484				}
485#  define	POLLWAKEUP(x)	;
486#  define	KMALLOC(a, b)	MALLOC((a), b, sizeof(*(a)), M_IOSYS, M_NOWAIT)
487#  define	KMALLOCS(a, b, c)	MALLOC((a), b, (c), M_IOSYS, M_NOWAIT)
488#  define	KFREE(x)	kmem_free((char *)(x), sizeof(*(x)))
489#  define	KFREES(x,s)	kmem_free((char *)(x), (s))
490#  define	MSGDSIZE(x)	msgdsize(x)
491#  define	M_LEN(x)	((x)->b_wptr - (x)->b_rptr)
492#  define	M_DUPLICATE(x)	dupmsg((x))
493#  define	MTOD(m,t)	((t)((m)->b_rptr))
494#  define	MTYPE(m)	((m)->b_datap->db_type)
495#  define	FREE_MB_T(m)	freemsg(m)
496#  define	m_next		b_cont
497#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
498typedef mblk_t mb_t;
499
500#  define	CACHE_HASH(x)	(((qpktinfo_t *)(x)->fin_qpi)->qpi_num & 7)
501
502#  include "qif.h"
503#  include "pfil.h"
504
505# else /* _KERNEL */
506
507typedef	unsigned char uchar_t;
508
509#  ifndef	_SYS_STREAM_INCLUDED
510typedef char * mblk_t;
511typedef void * queue_t;
512typedef	u_long ulong;
513#  endif
514#  include <netinet/ip_info.h>
515
516# endif /* _KERNEL */
517
518# ifdef lint
519#  define ALIGN32(ptr)    (ptr ? 0L : 0L)
520#  define ALIGN16(ptr)    (ptr ? 0L : 0L)
521# else
522#  define ALIGN32(ptr)    (ptr)
523#  define ALIGN16(ptr)    (ptr)
524# endif
525
526typedef	struct uio	uio_t;
527typedef	int		ioctlcmd_t;
528typedef	int		minor_t;
529typedef unsigned int	u_32_t;
530# define	U_32_T	1
531
532# define OS_RECOGNISED 1
533
534#endif /* __hpux */
535
536/* ----------------------------------------------------------------------- */
537/*                                  I R I X                                */
538/* ----------------------------------------------------------------------- */
539#ifdef __sgi
540# undef		MENTAT
541# if IRIX < 60500
542typedef	struct uio	uio_t;
543# endif
544typedef	int		ioctlcmd_t;
545typedef u_int32_t       u_32_t;
546# define	U_32_T	1
547
548# ifdef INET6
549#  define USE_INET6
550# endif
551
552# define  hz HZ
553# include <sys/ksynch.h>
554# define	IPF_LOCK_PL	plhi
555# include <sys/sema.h>
556# undef kmutex_t
557typedef struct {
558	lock_t *l;
559	int pl;
560} kmutex_t;
561
562# ifdef MUTEX_INIT
563#  define	KMUTEX_T		mutex_t
564# else
565#  define	KMUTEX_T		kmutex_t
566#  define	KRWLOCK_T		kmutex_t
567# endif
568
569# ifdef _KERNEL
570#  define	NEED_LOCAL_RAND	1
571#  define	ipf_random		arc4random
572#  define	ATOMIC_INC(x)		{ MUTEX_ENTER(&ipf_rw); \
573					  (x)++; MUTEX_EXIT(&ipf_rw); }
574#  define	ATOMIC_DEC(x)		{ MUTEX_ENTER(&ipf_rw); \
575					  (x)--; MUTEX_EXIT(&ipf_rw); }
576#  define	USE_MUTEXES
577#  ifdef MUTEX_INIT
578#   include <sys/atomic_ops.h>
579#   define	ATOMIC_INCL(x)		atomicAddUlong(&(x), 1)
580#   define	ATOMIC_INC64(x)		atomicAddUint64(&(x), 1)
581#   define	ATOMIC_INC32(x)		atomicAddUint(&(x), 1)
582#   define	ATOMIC_INC16		ATOMIC_INC
583#   define	ATOMIC_DECL(x)		atomicAddUlong(&(x), -1)
584#   define	ATOMIC_DEC64(x)		atomicAddUint64(&(x), -1)
585#   define	ATOMIC_DEC32(x)		atomicAddUint(&(x), -1)
586#   define	ATOMIC_DEC16		ATOMIC_DEC
587#   undef	MUTEX_INIT
588#   define	MUTEX_INIT(x, y)	mutex_init(&(x)->ipf_lk,  \
589						   MUTEX_DEFAULT, y)
590#   undef	MUTEX_ENTER
591#   define	MUTEX_ENTER(x)		mutex_lock(&(x)->ipf_lk, 0)
592#   undef	MUTEX_EXIT
593#   define	MUTEX_EXIT(x)		mutex_unlock(&(x)->ipf_lk)
594#   undef	MUTEX_DESTROY
595#   define	MUTEX_DESTROY(x)	mutex_destroy(&(x)->ipf_lk)
596#   define	MUTEX_DOWNGRADE(x)	mrdemote(&(x)->ipf_lk)
597#   define	KRWLOCK_T		mrlock_t
598#   define	RWLOCK_INIT(x, y)	mrinit(&(x)->ipf_lk, y)
599#   undef	RW_DESTROY
600#   define	RW_DESTROY(x)		mrfree(&(x)->ipf_lk)
601#   define	READ_ENTER(x)		RW_RDLOCK(&(x)->ipf_lk)
602#   define	WRITE_ENTER(x)		RW_WRLOCK(&(x)->ipf_lk)
603#   define	RWLOCK_EXIT(x)		RW_UNLOCK(&(x)->ipf_lk)
604#  else
605#   define	READ_ENTER(x)		MUTEX_ENTER(&(x)->ipf_lk)
606#   define	WRITE_ENTER(x)		MUTEX_ENTER(&(x)->ipf_lk)
607#   define	MUTEX_DOWNGRADE(x)	;
608#   define	RWLOCK_EXIT(x)		MUTEX_EXIT(&(x)->ipf_lk)
609#   define	MUTEX_EXIT(x)		UNLOCK((x)->ipf_lk.l, (x)->ipf_lk.pl);
610#   define	MUTEX_INIT(x,y)		(x)->ipf_lk.l = LOCK_ALLOC((uchar_t)-1, IPF_LOCK_PL, (lkinfo_t *)-1, KM_NOSLEEP)
611#   define	MUTEX_DESTROY(x)	LOCK_DEALLOC((x)->ipf_lk.l)
612#   define	MUTEX_ENTER(x)		(x)->ipf_lk.pl = LOCK((x)->ipf_lk.l, \
613							      IPF_LOCK_PL);
614#  endif
615#  define	MUTEX_NUKE(x)		bzero((x), sizeof(*(x)))
616#  define	FREE_MB_T(m)	m_freem(m)
617#  define	MTOD(m,t)	mtod(m,t)
618#  define	COPYIN(a,b,c)	(bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0)
619#  define	COPYOUT(a,b,c)	(bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0)
620#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
621#  define	SLEEP(id, n)	sleep((id), PZERO+1)
622#  define	WAKEUP(id,x)	wakeup(id+x)
623#  define	POLLWAKEUP(x)	;
624#  define	KFREE(x)	kmem_free((char *)(x), sizeof(*(x)))
625#  define	KFREES(x,s)	kmem_free((char *)(x), (s))
626#  define	GETIFP(n,v)	ifunit(n)
627#  include <sys/kmem.h>
628#  include <sys/ddi.h>
629#  define	KMALLOC(a,b)	(a) = (b)kmem_alloc(sizeof(*(a)), KM_NOSLEEP)
630#  define	KMALLOCS(a,b,c)	(a) = (b)kmem_alloc((c), KM_NOSLEEP)
631#  define	GET_MINOR(x)	getminor(x)
632#  define	USE_SPL		1
633#  define	SPL_IMP(x)	(x) = splimp()
634#  define	SPL_NET(x)	(x) = splnet()
635#  define	SPL_SCHED(x)	(x) = splsched()
636#  define	SPL_X(x)	(void) splx(x)
637extern	void	m_copydata __P((struct mbuf *, int, int, caddr_t));
638extern	void	m_copyback __P((struct mbuf *, int, int, caddr_t));
639#  define	MSGDSIZE(x)	mbufchainlen(x)
640#  define	M_LEN(x)	(x)->m_len
641#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
642#  define	GETKTIME(x)	microtime((struct timeval *)x)
643#  define	IFNAME(x)	((struct ifnet *)x)->if_name
644#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
645				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
646#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
647typedef struct mbuf mb_t;
648# else
649#  undef RW_DESTROY
650#  undef MUTEX_INIT
651#  undef MUTEX_DESTROY
652# endif /* _KERNEL */
653
654# define OS_RECOGNISED 1
655
656#endif /* __sgi */
657
658/* ----------------------------------------------------------------------- */
659/*                                  T R U 6 4                              */
660/* ----------------------------------------------------------------------- */
661#ifdef __osf__
662# undef		MENTAT
663
664# include <kern/lock.h>
665# include <sys/sysmacros.h>
666
667# ifdef _KERNEL
668#  define	NEED_LOCAL_RAND		1
669#  define	ipf_random		arc4random
670#  define	KMUTEX_T		simple_lock_data_t
671#  define	KRWLOCK_T		lock_data_t
672#  include <net/net_globals.h>
673#  define	USE_MUTEXES
674#  define	READ_ENTER(x)		lock_read(&(x)->ipf_lk)
675#  define	WRITE_ENTER(x)		lock_write(&(x)->ipf_lk)
676#  define	MUTEX_DOWNGRADE(x)	lock_write_to_read(&(x)->ipf_lk)
677#  define	RWLOCK_INIT(x, y)	lock_init(&(x)->ipf_lk, TRUE)
678#  define	RWLOCK_EXIT(x)		lock_done(&(x)->ipf_lk)
679#  define	RW_DESTROY(x)		lock_terminate(&(x)->ipf_lk)
680#  define	MUTEX_ENTER(x)		simple_lock(&(x)->ipf_lk)
681#  define	MUTEX_INIT(x, y)	simple_lock_init(&(x)->ipf_lk)
682#  define	MUTEX_DESTROY(x)	simple_lock_terminate(&(x)->ipf_lk)
683#  define	MUTEX_EXIT(x)		simple_unlock(&(x)->ipf_lk)
684#  define	MUTEX_NUKE(x)		bzero(x, sizeof(*(x)))
685#  define	ATOMIC_INC64(x)		atomic_incq((uint64_t*)&(x))
686#  define	ATOMIC_DEC64(x)		atomic_decq((uint64_t*)&(x))
687#  define	ATOMIC_INC32(x)		atomic_incl((uint32_t*)&(x))
688#  define	ATOMIC_DEC32(x)		atomic_decl((uint32_t*)&(x))
689#  define	ATOMIC_INC16(x)		{ simple_lock(&ipf_rw); (x)++; \
690					  simple_unlock(&ipf_rw); }
691#  define	ATOMIC_DEC16(x)		{ simple_lock(&ipf_rw); (x)--; \
692					  simple_unlock(&ipf_rw); }
693#  define	ATOMIC_INCL(x)		atomic_incl((uint32_t*)&(x))
694#  define	ATOMIC_DECL(x)		atomic_decl((uint32_t*)&(x))
695#  define	ATOMIC_INC(x)		{ simple_lock(&ipf_rw); (x)++; \
696					  simple_unlock(&ipf_rw); }
697#  define	ATOMIC_DEC(x)		{ simple_lock(&ipf_rw); (x)--; \
698					  simple_unlock(&ipf_rw); }
699#  define	SPL_SCHED(x)		;
700#  define	SPL_NET(x)		;
701#  define	SPL_IMP(x)		;
702#  undef	SPL_X
703#  define	SPL_X(x)		;
704#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a, b, d)
705#  define	FREE_MB_T(m)		m_freem(m)
706#  define	MTOD(m,t)		mtod(m,t)
707#  define	GETIFP(n, v)		ifunit(n)
708#  define	GET_MINOR		getminor
709#  define	WAKEUP(id,x)		wakeup(id + x)
710#  define	POLLWAKEUP(x)		;
711#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
712#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
713#  define	KMALLOC(a, b)	MALLOC((a), b, sizeof(*(a)), M_PFILT, M_NOWAIT)
714#  define	KMALLOCS(a, b, c)	MALLOC((a), b, (c), M_PFILT, \
715					    ((c) > 4096) ? M_WAITOK : M_NOWAIT)
716#  define	KFREE(x)	FREE((x), M_PFILT)
717#  define	KFREES(x,s)	FREE((x), M_PFILT)
718#  define	MSGDSIZE(x)	mbufchainlen(x)
719#  define	M_LEN(x)	(x)->m_len
720#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
721#  define	GETKTIME(x)	microtime((struct timeval *)x)
722#  define	IFNAME(x)	((struct ifnet *)x)->if_name
723#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
724				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
725#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
726typedef struct mbuf mb_t;
727# endif /* _KERNEL */
728
729# if (defined(_KERNEL) || defined(_NO_BITFIELDS) || (__STDC__ == 1))
730#  define	IP_V(x)		((x)->ip_vhl >> 4)
731#  define	IP_HL(x)	((x)->ip_vhl & 0xf)
732#  define	IP_V_A(x,y)	(x)->ip_vhl |= (((y) << 4) & 0xf0)
733#  define	IP_HL_A(x,y)	(x)->ip_vhl |= ((y) & 0xf)
734#  define	TCP_X2(x)	((x)->th_xoff & 0xf)
735#  define	TCP_X2_A(x,y)	(x)->th_xoff |= ((y) & 0xf)
736#  define	TCP_OFF(x)	((x)->th_xoff >> 4)
737#  define	TCP_OFF_A(x,y)	(x)->th_xoff |= (((y) << 4) & 0xf0)
738# endif
739
740/*
741 * These are from's Solaris' #defines for little endian.
742 */
743#define	IP6F_MORE_FRAG		0x0100
744#define	IP6F_RESERVED_MASK	0x0600
745#define	IP6F_OFF_MASK		0xf8ff
746
747struct ip6_ext {
748	u_char	ip6e_nxt;
749	u_char	ip6e_len;
750};
751
752typedef	int		ioctlcmd_t;
753/*
754 * Really, any arch where sizeof(long) != sizeof(int).
755 */
756typedef unsigned int    u_32_t;
757# define	U_32_T	1
758
759# define OS_RECOGNISED 1
760#endif /* __osf__ */
761
762/* ----------------------------------------------------------------------- */
763/*                                  N E T B S D                            */
764/* ----------------------------------------------------------------------- */
765#ifdef __NetBSD__
766# if (NetBSD >= 199905) && !defined(IPFILTER_LKM) && defined(_KERNEL)
767#  include "opt_ipfilter.h"
768# endif
769# if defined(_KERNEL)
770#  include <sys/systm.h>
771# else
772#  include <stddef.h>
773# endif
774# if defined(_KERNEL) && !defined(IPFILTER_LKM)
775#  include "bpfilter.h"
776#  if defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 104110000)
777#   include "opt_inet.h"
778#  endif
779#  ifdef INET6
780#   define USE_INET6
781#  endif
782#  if (__NetBSD_Version__ >= 105000000)
783#   define HAVE_M_PULLDOWN 1
784#  endif
785# endif
786
787# if (__NetBSD_Version__ >= 499000000)
788typedef	char *	caddr_t;
789# endif
790
791# define	ipf_random	arc4random
792
793# ifdef _KERNEL
794#  if (__NetBSD_Version__ >= 399001400)
795#   define	KMALLOCS(a, b, c)	(a) = (b)malloc((c), _M_IPF, M_NOWAIT)
796#  endif
797#  define	MSGDSIZE(x)	mbufchainlen(x)
798#  define	M_LEN(x)	(x)->m_len
799#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
800#  define	GETKTIME(x)	microtime((struct timeval *)x)
801#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
802#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
803#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
804typedef struct mbuf mb_t;
805# endif /* _KERNEL */
806# if (NetBSD <= 1991011) && (NetBSD >= 199606)
807#  define	IFNAME(x)	((struct ifnet *)x)->if_xname
808#  define	COPYIFNAME(v, x, b) \
809				(void) strncpy(b, \
810					       ((struct ifnet *)x)->if_xname, \
811					       LIFNAMSIZ)
812#  define	CACHE_HASH(x)	((((struct ifnet *)fin->fin_ifp)->if_index)&7)
813# else
814#  define	IFNAME(x)	((struct ifnet *)x)->if_name
815#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
816				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
817# endif
818typedef	struct uio	uio_t;
819typedef	u_long		ioctlcmd_t;
820typedef	int		minor_t;
821typedef	u_int32_t	u_32_t;
822# define	U_32_T	1
823
824# define OS_RECOGNISED 1
825#endif /* __NetBSD__ */
826
827
828/* ----------------------------------------------------------------------- */
829/*                                F R E E B S D                            */
830/* ----------------------------------------------------------------------- */
831#ifdef __FreeBSD__
832# if  (__FreeBSD_version < 400000)
833#  define	NEED_LOCAL_RAND	1
834# else
835#  define	ipf_random	arc4random
836# endif
837# if defined(_KERNEL)
838#  if (__FreeBSD_version >= 500000)
839#   include "opt_bpf.h"
840#  else
841#   include "bpf.h"
842#  endif
843#  if defined(__FreeBSD_version) && (__FreeBSD_version >= 400000)
844#   include "opt_inet6.h"
845#  endif
846#  if defined(INET6) && !defined(USE_INET6)
847#   define USE_INET6
848#  endif
849# endif
850
851# if defined(_KERNEL)
852#  if (__FreeBSD_version >= 400000)
853/*
854 * When #define'd, the 5.2.1 kernel panics when used with the ftp proxy.
855 * There may be other, safe, kernels but this is not extensively tested yet.
856 */
857#   define HAVE_M_PULLDOWN
858#  endif
859#  if !defined(IPFILTER_LKM) && (__FreeBSD_version >= 300000)
860#   include "opt_ipfilter.h"
861#  endif
862#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
863#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
864
865#  if (__FreeBSD_version >= 500043)
866#   define NETBSD_PF
867#  endif
868# endif /* _KERNEL */
869
870# if (__FreeBSD_version >= 500043)
871#  include <sys/mutex.h>
872#  if (__FreeBSD_version > 700014)
873#   include <sys/rwlock.h>
874#    define	KRWLOCK_T		struct rwlock
875#    ifdef _KERNEL
876#     define	READ_ENTER(x)		rw_rlock(&(x)->ipf_lk)
877#     define	WRITE_ENTER(x)		rw_wlock(&(x)->ipf_lk)
878#     define	MUTEX_DOWNGRADE(x)	rw_downgrade(&(x)->ipf_lk)
879#     define	RWLOCK_INIT(x, y)	rw_init(&(x)->ipf_lk, (y))
880#     define	RW_DESTROY(x)		rw_destroy(&(x)->ipf_lk)
881#     define	RWLOCK_EXIT(x)		do { \
882					    if (rw_wowned(&(x)->ipf_lk)) \
883						rw_wunlock(&(x)->ipf_lk); \
884 					    else \
885						rw_runlock(&(x)->ipf_lk); \
886					} while (0)
887#   endif
888#  else
889#   include <sys/sx.h>
890/*
891 * Whilst the sx(9) locks on FreeBSD have the right semantics and interface
892 * for what we want to use them for, despite testing showing they work -
893 * with a WITNESS kernel, it generates LOR messages.
894 */
895#   ifdef _KERNEL
896#    if (__FreeBSD_version < 700000)
897#     define	KRWLOCK_T		struct mtx
898#     define	READ_ENTER(x)		mtx_lock(&(x)->ipf_lk)
899#     define	WRITE_ENTER(x)		mtx_lock(&(x)->ipf_lk)
900#     define	RWLOCK_EXIT(x)		mtx_unlock(&(x)->ipf_lk)
901#     define	MUTEX_DOWNGRADE(x)	;
902#     define	RWLOCK_INIT(x,y)	mtx_init(&(x)->ipf_lk, (y), NULL,\
903						 MTX_DEF)
904#     define	RW_DESTROY(x)		mtx_destroy(&(x)->ipf_lk)
905#    else
906#     define	KRWLOCK_T		struct sx
907#     define	READ_ENTER(x)		sx_slock(&(x)->ipf_lk)
908#     define	WRITE_ENTER(x)		sx_xlock(&(x)->ipf_lk)
909#     define	MUTEX_DOWNGRADE(x)	sx_downgrade(&(x)->ipf_lk)
910#     define	RWLOCK_INIT(x, y)	sx_init(&(x)->ipf_lk, (y))
911#     define	RW_DESTROY(x)		sx_destroy(&(x)->ipf_lk)
912#     ifdef sx_unlock
913#      define	RWLOCK_EXIT(x)		sx_unlock(&(x)->ipf_lk)
914#     else
915#      define	RWLOCK_EXIT(x)		do { \
916					    if ((x)->ipf_lk.sx_cnt < 0) \
917						sx_xunlock(&(x)->ipf_lk); \
918					    else \
919						sx_sunlock(&(x)->ipf_lk); \
920					} while (0)
921#     endif
922#    endif
923#   endif
924#  endif
925#  define	KMUTEX_T		struct mtx
926# endif
927
928# if (__FreeBSD_version >= 501113)
929#  include <net/if_var.h>
930#  define	IFNAME(x)	((struct ifnet *)x)->if_xname
931#  define	COPYIFNAME(v, x, b) \
932				(void) strncpy(b, \
933					       ((struct ifnet *)x)->if_xname, \
934					       LIFNAMSIZ)
935# endif
936# if (__FreeBSD_version >= 500043)
937#  define	CACHE_HASH(x)	((((struct ifnet *)fin->fin_ifp)->if_index) & 7)
938# else
939#  define	IFNAME(x)	((struct ifnet *)x)->if_name
940#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
941				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
942# endif
943
944# ifdef _KERNEL
945#  define	GETKTIME(x)	microtime((struct timeval *)x)
946
947#  if (__FreeBSD_version >= 500002)
948#   include <netinet/in_systm.h>
949#   include <netinet/ip.h>
950#   include <machine/in_cksum.h>
951#  endif
952
953#  if (__FreeBSD_version >= 500043)
954#   define	USE_MUTEXES
955#   define	MUTEX_ENTER(x)		mtx_lock(&(x)->ipf_lk)
956#   define	MUTEX_EXIT(x)		mtx_unlock(&(x)->ipf_lk)
957#   define	MUTEX_INIT(x,y)		mtx_init(&(x)->ipf_lk, (y), NULL,\
958						 MTX_DEF)
959#   define	MUTEX_DESTROY(x)	mtx_destroy(&(x)->ipf_lk)
960#   define	MUTEX_NUKE(x)		bzero((x), sizeof(*(x)))
961#   include <machine/atomic.h>
962#   define	ATOMIC_INC(x)		{ mtx_lock(&ipf_rw.ipf_lk); (x)++; \
963					  mtx_unlock(&ipf_rw.ipf_lk); }
964#   define	ATOMIC_DEC(x)		{ mtx_lock(&ipf_rw.ipf_lk); (x)--; \
965					  mtx_unlock(&ipf_rw.ipf_lk); }
966#   define	ATOMIC_INCL(x)		atomic_add_long(&(x), 1)
967#   define	ATOMIC_INC64(x)		ATOMIC_INC(x)
968#   define	ATOMIC_INC32(x)		atomic_add_32((u_int *)&(x), 1)
969#   define	ATOMIC_INC16(x)		atomic_add_16(&(x), 1)
970#   define	ATOMIC_DECL(x)		atomic_add_long(&(x), -1)
971#   define	ATOMIC_DEC64(x)		ATOMIC_DEC(x)
972#   define	ATOMIC_DEC32(x)		atomic_add_32((u_int *)&(x), -1)
973#   define	ATOMIC_DEC16(x)		atomic_add_16(&(x), -1)
974#   define	SPL_X(x)	;
975#   define	SPL_NET(x)	;
976#   define	SPL_IMP(x)	;
977#   define	SPL_SCHED(x)	;
978extern	int	in_cksum __P((struct mbuf *, int));
979#  else
980#   define	SPL_SCHED(x)	x = splhigh()
981#  endif /* __FreeBSD_version >= 500043 */
982#  define	MSGDSIZE(x)	mbufchainlen(x)
983#  define	M_LEN(x)	(x)->m_len
984#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
985#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
986typedef struct mbuf mb_t;
987# endif /* _KERNEL */
988
989# if __FreeBSD__ < 3
990#  include <machine/spl.h>
991# else
992#  if __FreeBSD__ == 3
993#   if defined(IPFILTER_LKM) && !defined(ACTUALLY_LKM_NOT_KERNEL)
994#    define	ACTUALLY_LKM_NOT_KERNEL
995#   endif
996#  endif
997# endif
998
999# if (__FreeBSD_version >= 300000)
1000typedef	u_long		ioctlcmd_t;
1001# else
1002typedef	int		ioctlcmd_t;
1003# endif
1004typedef	struct uio	uio_t;
1005typedef	int		minor_t;
1006typedef	u_int32_t	u_32_t;
1007# define	U_32_T	1
1008
1009# define OS_RECOGNISED 1
1010#endif /* __FreeBSD__ */
1011
1012
1013/* ----------------------------------------------------------------------- */
1014/*                                O P E N B S D                            */
1015/* ----------------------------------------------------------------------- */
1016#ifdef __OpenBSD__
1017# ifdef INET6
1018#  define USE_INET6
1019# endif
1020
1021# ifdef _KERNEL
1022#  if !defined(IPFILTER_LKM)
1023#   include "bpfilter.h"
1024#  endif
1025#  if (OpenBSD >= 200311)
1026#   define SNPRINTF	snprintf
1027#   if defined(USE_INET6)
1028#    include "netinet6/in6_var.h"
1029#    include "netinet6/nd6.h"
1030#   endif
1031#  endif
1032#  if (OpenBSD >= 200012)
1033#   define HAVE_M_PULLDOWN 1
1034#  endif
1035#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
1036#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
1037#  define	GETKTIME(x)	microtime((struct timeval *)x)
1038#  define	MSGDSIZE(x)	mbufchainlen(x)
1039#  define	M_LEN(x)	(x)->m_len
1040#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
1041#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
1042typedef struct mbuf mb_t;
1043# endif /* _KERNEL */
1044# if (OpenBSD >= 199603)
1045#  define	IFNAME(x, b)	((struct ifnet *)x)->if_xname
1046#  define	COPYIFNAME(v, x, b) \
1047				(void) strncpy(b, \
1048					       ((struct ifnet *)x)->if_xname, \
1049					       LIFNAMSIZ)
1050#  define	CACHE_HASH(x)	((((struct ifnet *)fin->fin_ifp)->if_index)&7)
1051# else
1052#  define	IFNAME(x, b)	((struct ifnet *)x)->if_name
1053#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
1054				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
1055# endif
1056
1057typedef	struct uio	uio_t;
1058typedef	u_long		ioctlcmd_t;
1059typedef	int		minor_t;
1060typedef	u_int32_t	u_32_t;
1061# define	U_32_T	1
1062
1063# define OS_RECOGNISED 1
1064#endif /* __OpenBSD__ */
1065
1066
1067/* ----------------------------------------------------------------------- */
1068/*                                B S D O S                                */
1069/* ----------------------------------------------------------------------- */
1070#ifdef _BSDI_VERSION
1071# ifdef INET6
1072#  define USE_INET6
1073# endif
1074
1075# ifdef _KERNEL
1076#  define	GETKTIME(x)	microtime((struct timeval *)x)
1077#  define	MSGDSIZE(x)	mbufchainlen(x)
1078#  define	M_LEN(x)	(x)->m_len
1079#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
1080#  define	IFNAME(x, b)	((struct ifnet *)x)->if_name
1081#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
1082				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
1083typedef struct mbuf mb_t;
1084# endif /* _KERNEL */
1085
1086# if (_BSDI_VERSION >= 199701)
1087typedef	u_long		ioctlcmd_t;
1088# else
1089typedef	int		ioctlcmd_t;
1090# endif
1091typedef	u_int32_t	u_32_t;
1092# define	U_32_T	1
1093
1094#endif /* _BSDI_VERSION */
1095
1096
1097/* ----------------------------------------------------------------------- */
1098/*                                  S U N O S 4                            */
1099/* ----------------------------------------------------------------------- */
1100#if defined(sun) && !defined(OS_RECOGNISED) /* SunOS4 */
1101# ifdef _KERNEL
1102#  include	<sys/kmem_alloc.h>
1103#  define	GETKTIME(x)	uniqtime((struct timeval *)x)
1104#  define	MSGDSIZE(x)	mbufchainlen(x)
1105#  define	M_LEN(x)	(x)->m_len
1106#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
1107#  define	IFNAME(x, b)	((struct ifnet *)x)->if_name
1108#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
1109				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
1110#  define	GETIFP(n, v)	ifunit(n, IFNAMSIZ)
1111#  define	KFREE(x)	kmem_free((char *)(x), sizeof(*(x)))
1112#  define	KFREES(x,s)	kmem_free((char *)(x), (s))
1113#  define	SLEEP(id, n)	sleep((id), PZERO+1)
1114#  define	WAKEUP(id,x)	wakeup(id + x)
1115#  define	POLLWAKEUP(x)	;
1116#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
1117#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
1118
1119extern	void	m_copydata __P((struct mbuf *, int, int, caddr_t));
1120extern	void	m_copyback __P((struct mbuf *, int, int, caddr_t));
1121
1122typedef struct mbuf mb_t;
1123# endif
1124
1125typedef	struct uio	uio_t;
1126typedef	int		ioctlcmd_t;
1127typedef	int		minor_t;
1128typedef	unsigned int	u_32_t;
1129# define	U_32_T	1
1130
1131# define OS_RECOGNISED 1
1132
1133#endif /* SunOS 4 */
1134
1135/* ----------------------------------------------------------------------- */
1136/*                            L I N U X                                    */
1137/* ----------------------------------------------------------------------- */
1138#if defined(linux) && !defined(OS_RECOGNISED)
1139#include <linux/config.h>
1140#include <linux/version.h>
1141# if (LINUX >= 20600) && defined(_KERNEL)
1142#  define	 HDR_T_PRIVATE	1
1143# endif
1144# undef USE_INET6
1145# ifdef USE_INET6
1146struct ip6_ext {
1147	u_char	ip6e_nxt;
1148	u_char	ip6e_len;
1149};
1150# endif
1151
1152# ifdef _KERNEL
1153#  define	IPF_PANIC(x,y)	if (x) { printf y; panic("ipf_panic"); }
1154#  define	COPYIN(a,b,c)	copy_from_user((caddr_t)(b), (caddr_t)(a), (c))
1155#  define	COPYOUT(a,b,c)	copy_to_user((caddr_t)(b), (caddr_t)(a), (c))
1156#  define	FREE_MB_T(m)	kfree_skb(m)
1157#  define	GETKTIME(x)	do_gettimeofday((struct timeval *)x)
1158#  define	POLLWAKEUP(x)	;
1159#  ifdef wait_event_interruptible
1160#   define	SLEEP(x,s)	wait_event_interruptible((*(x##_linux)), 0)
1161#  else
1162#   define	SLEEP(x,s)	0, interruptible_sleep_on(x##_linux)
1163#  endif
1164#   define	WAKEUP(x,y)	wake_up(x##_linux + y)
1165#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
1166#  define	USE_MUTEXES
1167#  define	KRWLOCK_T		rwlock_t
1168#  define	KMUTEX_T		spinlock_t
1169#  define	MUTEX_INIT(x,y)		spin_lock_init(&(x)->ipf_lk)
1170#  define	MUTEX_ENTER(x)		spin_lock(&(x)->ipf_lk)
1171#  define	MUTEX_EXIT(x)		spin_unlock(&(x)->ipf_lk)
1172#  define	MUTEX_DESTROY(x)	do { } while (0)
1173#  define	MUTEX_NUKE(x)		bzero(&(x)->ipf_lk, sizeof((x)->ipf_lk))
1174#  define	READ_ENTER(x)		ipf_read_enter(x)
1175#  define	WRITE_ENTER(x)		ipf_write_enter(x)
1176#  define	RWLOCK_INIT(x,y)	ipf_rw_init(x, y)
1177#  define	RW_DESTROY(x)		do { } while (0)
1178#  define	RWLOCK_EXIT(x)		ipf_rw_exit(x)
1179#  define	MUTEX_DOWNGRADE(x)	ipf_rw_downgrade(x)
1180#  define	ATOMIC_INCL(x)		MUTEX_ENTER(&ipf_rw); (x)++; \
1181					MUTEX_EXIT(&ipf_rw)
1182#  define	ATOMIC_DECL(x)		MUTEX_ENTER(&ipf_rw); (x)--; \
1183					MUTEX_EXIT(&ipf_rw)
1184#  define	ATOMIC_INC64(x)		MUTEX_ENTER(&ipf_rw); (x)++; \
1185					MUTEX_EXIT(&ipf_rw)
1186#  define	ATOMIC_INC32(x)		MUTEX_ENTER(&ipf_rw); (x)++; \
1187					MUTEX_EXIT(&ipf_rw)
1188#  define	ATOMIC_INC16(x)		MUTEX_ENTER(&ipf_rw); (x)++; \
1189					MUTEX_EXIT(&ipf_rw)
1190#  define	ATOMIC_DEC64(x)		MUTEX_ENTER(&ipf_rw); (x)--; \
1191					MUTEX_EXIT(&ipf_rw)
1192#  define	ATOMIC_DEC32(x)		MUTEX_ENTER(&ipf_rw); (x)--; \
1193					MUTEX_EXIT(&ipf_rw)
1194#  define	ATOMIC_DEC16(x)		MUTEX_ENTER(&ipf_rw); (x)--; \
1195					MUTEX_EXIT(&ipf_rw)
1196#  define	SPL_SCHED(x)		do { } while (0)
1197#  define	SPL_IMP(x)		do { } while (0)
1198#  define	SPL_NET(x)		do { } while (0)
1199#  define	SPL_X(x)		do { } while (0)
1200#  define	IFNAME(x)		((struct net_device*)x)->name
1201#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
1202			  ((struct net_device *)fin->fin_ifp)->ifindex) & 7)
1203typedef	struct	sk_buff	mb_t;
1204extern	void	m_copydata __P((mb_t *, int, int, caddr_t));
1205extern	void	m_copyback __P((mb_t *, int, int, caddr_t));
1206extern	void	m_adj __P((mb_t *, int));
1207extern	mb_t	*m_pullup __P((mb_t *, int));
1208#  define	mbuf	sk_buff
1209
1210#  define	mtod(m, t)	((t)(m)->data)
1211#  define	m_data		data
1212#  define	m_len		len
1213#  define	m_next		next
1214#  define	M_DUPLICATE(m)	skb_clone((m), in_interrupt() ? GFP_ATOMIC : \
1215								GFP_KERNEL)
1216#  define	MSGDSIZE(m)	(m)->len
1217#  define	M_LEN(m)	(m)->len
1218
1219#  define	splnet(x)	;
1220#  define	printf		printk
1221#  define	bcopy(s,d,z)	memmove(d, s, z)
1222#  define	bzero(s,z)	memset(s, 0, z)
1223#  define	bcmp(a,b,z)	memcmp(a, b, z)
1224
1225#  define	ifnet		net_device
1226#  define	if_xname	name
1227#  define	if_unit		ifindex
1228
1229#  define	KMALLOC(x,t)	(x) = (t)kmalloc(sizeof(*(x)), \
1230				    in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)
1231#  define	KFREE(x)	kfree(x)
1232#  define	KMALLOCS(x,t,s)	(x) = (t)kmalloc((s), \
1233				    in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)
1234#  define	KFREES(x,s)	kfree(x)
1235
1236#  define GETIFP(n,v)	dev_get_by_name(n)
1237
1238# else
1239#  include <net/ethernet.h>
1240
1241struct mbuf {
1242};
1243
1244#  ifndef _NET_ROUTE_H
1245struct rtentry {
1246};
1247#  endif
1248
1249struct ifnet {
1250	char	if_xname[IFNAMSIZ];
1251	int	if_unit;
1252	int	(* if_output) __P((struct ifnet *, struct mbuf *, struct sockaddr *, struct rtentry *));
1253	struct	ifaddr	*if_addrlist;
1254};
1255# define	IFNAME(x)	((struct ifnet *)x)->if_xname
1256
1257# endif	/* _KERNEL */
1258
1259# define	COPYIFNAME(v, x, b) \
1260				(void) strncpy(b, \
1261					       ((struct ifnet *)x)->if_xname, \
1262					       LIFNAMSIZ)
1263
1264# include <linux/fs.h>
1265# define	FWRITE	FMODE_WRITE
1266# define	FREAD	FMODE_READ
1267
1268# define	__USE_MISC	1
1269# define	__FAVOR_BSD	1
1270
1271typedef	struct uio {
1272	struct iovec	*uio_iov;
1273	void	*uio_file;
1274	char	*uio_buf;
1275	int	uio_iovcnt;
1276	int	uio_offset;
1277	size_t	uio_resid;
1278	int	uio_rw;
1279} uio_t;
1280
1281extern	int	uiomove __P((caddr_t, size_t, int, struct uio *));
1282
1283# define	UIO_READ	1
1284# define	UIO_WRITE	2
1285
1286typedef	u_long		ioctlcmd_t;
1287typedef	int		minor_t;
1288typedef u_int32_t 	u_32_t;
1289# define	U_32_T	1
1290
1291# define OS_RECOGNISED 1
1292
1293#endif
1294
1295
1296/* ----------------------------------------------------------------------- */
1297/*                                    A I X                                */
1298/* ----------------------------------------------------------------------- */
1299#if defined(_AIX51)
1300# undef		MENTAT
1301
1302# include <sys/lock.h>
1303# include <sys/sysmacros.h>
1304
1305# ifdef _KERNEL
1306#  define rw_read_locked(x)		0
1307#  include <net/net_globals.h>
1308#  include <net/net_malloc.h>
1309#  define	KMUTEX_T		simple_lock_t
1310#  define	KRWLOCK_T		complex_lock_t
1311#  define	USE_MUTEXES		1
1312#  define	USE_SPL			1
1313#  define	READ_ENTER(x)		lock_read((x)->ipf_lk)
1314#  define	WRITE_ENTER(x)		lock_write((x)->ipf_lk)
1315#  define	MUTEX_DOWNGRADE(x)	lock_write_to_read((x)->ipf_lk)
1316#  define	RWLOCK_INIT(x, y)	lock_alloc(&(x)->ipf_lk, \
1317						   LOCK_ALLOC_PIN, \
1318						   (u_short)y, 0); \
1319					lock_init((x)->ipf_lk, TRUE)
1320#  define	RWLOCK_EXIT(x)		lock_done((x)->ipf_lk)
1321#  define	RW_DESTROY(x)		lock_free(&(x)->ipf_lk)
1322#  define	MUTEX_ENTER(x)		simple_lock((x)->ipf_lk)
1323#  define	MUTEX_INIT(x, y)	lock_alloc(&(x)->ipf_lk, \
1324						   LOCK_ALLOC_PIN, \
1325						   (u_short)y, 0); \
1326					simple_lock_init((x)->ipf_lk)
1327#  define	MUTEX_DESTROY(x)	lock_free(&(x)->ipf_lk)
1328#  define	MUTEX_EXIT(x)		simple_unlock((x)->ipf_lk)
1329#  define	MUTEX_NUKE(x)		bzero(&(x)->ipf_lk, sizeof((x)->ipf_lk))
1330#   define	ATOMIC_INC64(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
1331					  MUTEX_EXIT(&ipf_rw); }
1332#   define	ATOMIC_DEC64(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
1333					  MUTEX_EXIT(&ipf_rw); }
1334#   define	ATOMIC_INC32(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
1335					  MUTEX_EXIT(&ipf_rw); }
1336#   define	ATOMIC_DEC32(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
1337					  MUTEX_EXIT(&ipf_rw); }
1338#   define	ATOMIC_INCL(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
1339					  MUTEX_EXIT(&ipf_rw); }
1340#   define	ATOMIC_DECL(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
1341					  MUTEX_EXIT(&ipf_rw); }
1342#   define	ATOMIC_INC(x)		{ MUTEX_ENTER(&ipf_rw); (x)++; \
1343					  MUTEX_EXIT(&ipf_rw); }
1344#   define	ATOMIC_DEC(x)		{ MUTEX_ENTER(&ipf_rw); (x)--; \
1345					  MUTEX_EXIT(&ipf_rw); }
1346#  define	SPL_SCHED(x)		x = splsched()
1347#  define	SPL_NET(x)		x = splnet()
1348#  define	SPL_IMP(x)		x = splimp()
1349#  undef	SPL_X
1350#  define	SPL_X(x)		splx(x)
1351#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,c,d)
1352extern void* getifp __P((char *, int));
1353#  define	GETIFP(n, v)		getifp(n, v)
1354#  define	GET_MINOR		minor
1355#  define	SLEEP(id, n)	sleepx((id), PZERO+1, 0)
1356#  define	WAKEUP(id,x)	wakeup(id)
1357#  define	POLLWAKEUP(x)	;
1358#  define	COPYIN(a,b,c)	copyin((caddr_t)(a), (caddr_t)(b), (c))
1359#  define	COPYOUT(a,b,c)	copyout((caddr_t)(a), (caddr_t)(b), (c))
1360#  define	KMALLOC(a, b)	MALLOC((a), b, sizeof(*(a)), M_TEMP, M_NOWAIT)
1361#  define	KMALLOCS(a, b, c)	MALLOC((a), b, (c), M_TEMP, \
1362					    ((c) > 4096) ? M_WAITOK : M_NOWAIT)
1363#  define	KFREE(x)	FREE((x), M_TEMP)
1364#  define	KFREES(x,s)	FREE((x), M_TEMP)
1365#  define	MSGDSIZE(x)	mbufchainlen(x)
1366#  define	M_LEN(x)	(x)->m_len
1367#  define	M_DUPLICATE(x)	m_copy((x), 0, M_COPYALL)
1368#  define	GETKTIME(x)
1369#  define	IFNAME(x, b)	((struct ifnet *)x)->if_name
1370#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
1371				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
1372#  define	IPF_PANIC(x,y)
1373typedef struct mbuf mb_t;
1374# endif /* _KERNEL */
1375
1376/*
1377 * These are from's Solaris' #defines for little endian.
1378 */
1379#if !defined(IP6F_MORE_FRAG)
1380# define	IP6F_MORE_FRAG		0x0100
1381#endif
1382#if !defined(IP6F_RESERVED_MASK)
1383# define	IP6F_RESERVED_MASK	0x0600
1384#endif
1385#if !defined(IP6F_OFF_MASK)
1386# define	IP6F_OFF_MASK		0xf8ff
1387#endif
1388
1389struct ip6_ext {
1390	u_char	ip6e_nxt;
1391	u_char	ip6e_len;
1392};
1393
1394typedef	int		ioctlcmd_t;
1395typedef	int		minor_t;
1396/*
1397 * Really, any arch where sizeof(long) != sizeof(int).
1398 */
1399typedef unsigned int    u_32_t;
1400# define	U_32_T	1
1401
1402# define OS_RECOGNISED 1
1403#endif	/* _AIX51 */
1404
1405
1406#ifndef	OS_RECOGNISED
1407#error	ip_compat.h does not recognise this platform/OS.
1408#endif
1409
1410
1411/* ----------------------------------------------------------------------- */
1412/*                           G E N E R I C                                 */
1413/* ----------------------------------------------------------------------- */
1414#ifndef OS_RECOGNISED
1415#endif
1416
1417/*
1418 * For BSD kernels, if bpf is in the kernel, enable ipfilter to use bpf in
1419 * filter rules.
1420 */
1421#if !defined(IPFILTER_BPF)
1422# if (defined(NBPF) && (NBPF > 0)) || (defined(DEV_BPF) && (DEV_BPF > 0)) || \
1423     (defined(NBPFILTER) && (NBPFILTER > 0))
1424#  define	IPFILTER_BPF
1425# endif
1426#endif
1427
1428/*
1429 * Userland locking primitives
1430 */
1431typedef	struct	{
1432	char	*eMm_owner;
1433	char	*eMm_heldin;
1434	u_int	eMm_magic;
1435	int	eMm_held;
1436	int	eMm_heldat;
1437#if defined(__hpux) || defined(__linux)
1438	char	eMm_fill[8];
1439#endif
1440} eMmutex_t;
1441
1442typedef	struct	{
1443	char	*eMrw_owner;
1444	char	*eMrw_heldin;
1445	u_int	eMrw_magic;
1446	short	eMrw_read;
1447	short	eMrw_write;
1448	int	eMrw_heldat;
1449#ifdef __hpux
1450	char	eMm_fill[24];
1451#endif
1452} eMrwlock_t;
1453
1454typedef union {
1455#ifdef KMUTEX_T
1456	struct	{
1457		KMUTEX_T	ipf_slk;
1458		char		*ipf_lname;
1459	} ipf_lkun_s;
1460#endif
1461	eMmutex_t	ipf_emu;
1462} ipfmutex_t;
1463
1464typedef union {
1465#ifdef KRWLOCK_T
1466	struct	{
1467		KRWLOCK_T	ipf_slk;
1468		char		*ipf_lname;
1469		int		ipf_sr;
1470		int		ipf_sw;
1471		u_int		ipf_magic;
1472	} ipf_lkun_s;
1473#endif
1474	eMrwlock_t	ipf_emu;
1475} ipfrwlock_t;
1476
1477#define	ipf_lk		ipf_lkun_s.ipf_slk
1478#define	ipf_lname	ipf_lkun_s.ipf_lname
1479#define	ipf_isr		ipf_lkun_s.ipf_sr
1480#define	ipf_isw		ipf_lkun_s.ipf_sw
1481#define	ipf_magic	ipf_lkun_s.ipf_magic
1482
1483#if !defined(__GNUC__) || \
1484    (defined(__FreeBSD_version) && (__FreeBSD_version >= 503000))
1485# ifndef	INLINE
1486#  define	INLINE
1487# endif
1488#else
1489# define	INLINE	__inline__
1490#endif
1491
1492#if defined(linux) && defined(_KERNEL)
1493extern	void	ipf_read_enter __P((ipfrwlock_t *));
1494extern	void	ipf_write_enter __P((ipfrwlock_t *));
1495extern	void	ipf_rw_exit __P((ipfrwlock_t *));
1496extern	void	ipf_rw_init __P((ipfrwlock_t *, char *));
1497extern	void	ipf_rw_downgrade __P((ipfrwlock_t *));
1498#endif
1499
1500/*
1501 * In a non-kernel environment, there are a lot of macros that need to be
1502 * filled in to be null-ops or to point to some compatibility function,
1503 * somewhere in userland.
1504 */
1505#ifndef _KERNEL
1506typedef	struct	mb_s	{
1507	struct	mb_s	*mb_next;
1508	int		mb_len;
1509	u_long		mb_buf[2048];
1510} mb_t;
1511# undef		m_next
1512# define	m_next		mb_next
1513# define	MSGDSIZE(x)	(x)->mb_len	/* XXX - from ipt.c */
1514# define	M_LEN(x)	(x)->mb_len
1515# define	M_DUPLICATE(x)	(x)
1516# define	GETKTIME(x)	gettimeofday((struct timeval *)(x), NULL)
1517# undef		MTOD
1518# define	MTOD(m, t)	((t)(m)->mb_buf)
1519# define	FREE_MB_T(x)
1520# define	SLEEP(x,y)	1;
1521# define	WAKEUP(x,y)	;
1522# define	POLLWAKEUP(y)	;
1523# define	IPF_PANIC(x,y)	;
1524# define	PANIC(x,y)	;
1525# define	SPL_SCHED(x)	;
1526# define	SPL_NET(x)	;
1527# define	SPL_IMP(x)	;
1528# define	SPL_X(x)	;
1529# define	KMALLOC(a,b)	(a) = (b)malloc(sizeof(*a))
1530# define	KMALLOCS(a,b,c)	(a) = (b)malloc(c)
1531# define	KFREE(x)	free(x)
1532# define	KFREES(x,s)	free(x)
1533# define	GETIFP(x, v)	get_unit(x,v)
1534# define	COPYIN(a,b,c)	bcopywrap((a), (b), (c))
1535# define	COPYOUT(a,b,c)	bcopywrap((a), (b), (c))
1536# define	COPYDATA(m, o, l, b)	bcopy(MTOD((mb_t *)m, char *) + (o), \
1537					      (b), (l))
1538# define	COPYBACK(m, o, l, b)	bcopy((b), \
1539					      MTOD((mb_t *)m, char *) + (o), \
1540					      (l))
1541# define	UIOMOVE(a,b,c,d)	ipfuiomove((caddr_t)a,b,c,d)
1542extern	void	m_copydata __P((mb_t *, int, int, caddr_t));
1543extern	int	ipfuiomove __P((caddr_t, int, int, struct uio *));
1544extern	int	bcopywrap __P((void *, void *, size_t));
1545# ifndef CACHE_HASH
1546#  define	CACHE_HASH(x)	((IFNAME(fin->fin_ifp)[0] + \
1547				  ((struct ifnet *)fin->fin_ifp)->if_unit) & 7)
1548# endif
1549
1550# define	MUTEX_DESTROY(x)	eMmutex_destroy(&(x)->ipf_emu)
1551# define	MUTEX_ENTER(x)		eMmutex_enter(&(x)->ipf_emu, \
1552						      __FILE__, __LINE__)
1553# define	MUTEX_EXIT(x)		eMmutex_exit(&(x)->ipf_emu)
1554# define	MUTEX_INIT(x,y)		eMmutex_init(&(x)->ipf_emu, y)
1555# define	MUTEX_NUKE(x)		bzero((x), sizeof(*(x)))
1556
1557# define	MUTEX_DOWNGRADE(x)	eMrwlock_downgrade(&(x)->ipf_emu, \
1558							   __FILE__, __LINE__)
1559# define	READ_ENTER(x)		eMrwlock_read_enter(&(x)->ipf_emu, \
1560							    __FILE__, __LINE__)
1561# define	RWLOCK_INIT(x, y)	eMrwlock_init(&(x)->ipf_emu, y)
1562# define	RWLOCK_EXIT(x)		eMrwlock_exit(&(x)->ipf_emu)
1563# define	RW_DESTROY(x)		eMrwlock_destroy(&(x)->ipf_emu)
1564# define	WRITE_ENTER(x)		eMrwlock_write_enter(&(x)->ipf_emu, \
1565							     __FILE__, \
1566							     __LINE__)
1567
1568# define	USE_MUTEXES		1
1569
1570extern void eMmutex_destroy __P((eMmutex_t *));
1571extern void eMmutex_enter __P((eMmutex_t *, char *, int));
1572extern void eMmutex_exit __P((eMmutex_t *));
1573extern void eMmutex_init __P((eMmutex_t *, char *));
1574extern void eMrwlock_destroy __P((eMrwlock_t *));
1575extern void eMrwlock_exit __P((eMrwlock_t *));
1576extern void eMrwlock_init __P((eMrwlock_t *, char *));
1577extern void eMrwlock_read_enter __P((eMrwlock_t *, char *, int));
1578extern void eMrwlock_write_enter __P((eMrwlock_t *, char *, int));
1579extern void eMrwlock_downgrade __P((eMrwlock_t *, char *, int));
1580
1581#endif
1582
1583#define	MAX_IPV4HDR	((0xf << 2) + sizeof(struct icmp) + sizeof(ip_t) + 8)
1584
1585#ifndef	IP_OFFMASK
1586# define	IP_OFFMASK	0x1fff
1587#endif
1588
1589
1590/*
1591 * On BSD's use quad_t as a guarantee for getting at least a 64bit sized
1592 * object.
1593 */
1594#if (BSD > 199306)
1595# define	USE_QUAD_T
1596# define	U_QUAD_T	unsigned long long
1597# define	QUAD_T		long long
1598#else /* BSD > 199306 */
1599# define	U_QUAD_T	u_long
1600# define	QUAD_T		long
1601#endif /* BSD > 199306 */
1602
1603
1604#ifdef	USE_INET6
1605# if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \
1606     defined(__osf__) || defined(linux)
1607#  include <netinet/ip6.h>
1608#  include <netinet/icmp6.h>
1609#  if !defined(linux)
1610#   if defined(_KERNEL) && !defined(__osf__)
1611#    include <netinet6/ip6_var.h>
1612#   endif
1613#  endif
1614typedef	struct ip6_hdr	ip6_t;
1615# endif
1616#endif
1617
1618#ifndef	MAX
1619# define	MAX(a,b)	(((a) > (b)) ? (a) : (b))
1620#endif
1621
1622#if defined(_KERNEL)
1623# ifdef MENTAT
1624#  define	COPYDATA	mb_copydata
1625#  define	COPYBACK	mb_copyback
1626# else
1627#  define	COPYDATA	m_copydata
1628#  define	COPYBACK	m_copyback
1629# endif
1630# if (BSD >= 199306) || defined(__FreeBSD__)
1631#  if (defined(__NetBSD_Version__) && (__NetBSD_Version__ < 105180000)) || \
1632       defined(__FreeBSD__) || (defined(OpenBSD) && (OpenBSD < 200206)) || \
1633       defined(_BSDI_VERSION)
1634#   include <vm/vm.h>
1635#  endif
1636#  if !defined(__FreeBSD__) || (defined (__FreeBSD_version) && \
1637      (__FreeBSD_version >= 300000))
1638#   if (defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 105180000)) || \
1639       (defined(OpenBSD) && (OpenBSD >= 200111))
1640#    include <uvm/uvm_extern.h>
1641#   else
1642#    include <vm/vm_extern.h>
1643extern  vm_map_t        kmem_map;
1644#   endif
1645#   include <sys/proc.h>
1646#  else /* !__FreeBSD__ || (__FreeBSD__ && __FreeBSD_version >= 300000) */
1647#   include <vm/vm_kern.h>
1648#  endif /* !__FreeBSD__ || (__FreeBSD__ && __FreeBSD_version >= 300000) */
1649
1650#  ifdef IPFILTER_M_IPFILTER
1651#    include <sys/malloc.h>
1652MALLOC_DECLARE(M_IPFILTER);
1653#    define	_M_IPF		M_IPFILTER
1654#  else /* IPFILTER_M_IPFILTER */
1655#   ifdef M_PFIL
1656#    define	_M_IPF		M_PFIL
1657#   else
1658#    ifdef M_IPFILTER
1659#     define	_M_IPF		M_IPFILTER
1660#    else
1661#     define	_M_IPF		M_TEMP
1662#    endif /* M_IPFILTER */
1663#   endif /* M_PFIL */
1664#  endif /* IPFILTER_M_IPFILTER */
1665#  define	KMALLOC(a, b)	MALLOC((a), b, sizeof(*(a)), _M_IPF, M_NOWAIT)
1666#  if !defined(KMALLOCS)
1667#   define	KMALLOCS(a, b, c)	MALLOC((a), b, (c), _M_IPF, M_NOWAIT)
1668#  endif
1669#  define	KFREE(x)	FREE((x), _M_IPF)
1670#  define	KFREES(x,s)	FREE((x), _M_IPF)
1671#  define	UIOMOVE(a,b,c,d)	uiomove((caddr_t)a,b,d)
1672#  define	SLEEP(id, n)	tsleep((id), PPAUSE|PCATCH, n, 0)
1673#  define	WAKEUP(id,x)	wakeup(id+x)
1674#  define	POLLWAKEUP(x)	selwakeup(ipfselwait+x)
1675#  define	GETIFP(n, v)	ifunit(n)
1676# endif /* (Free)BSD */
1677
1678# if !defined(USE_MUTEXES) && !defined(SPL_NET)
1679#  if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199407)) || \
1680      (defined(OpenBSD) && (OpenBSD >= 200006))
1681#   define	SPL_NET(x)	x = splsoftnet()
1682#  else
1683#   define	SPL_IMP(x)	x = splimp()
1684#   define	SPL_NET(x)	x = splnet()
1685#  endif /* NetBSD && (NetBSD <= 1991011) && (NetBSD >= 199407) */
1686#  if !defined(SPL_SCHED)
1687#   define	SPL_SCHED(x)	x = splsched()
1688#  endif
1689#  define	SPL_X(x)	(void) splx(x)
1690# endif /* !USE_MUTEXES */
1691
1692# ifndef FREE_MB_T
1693#  define	FREE_MB_T(m)	m_freem(m)
1694# endif
1695
1696# ifndef MTOD
1697#  define	MTOD(m,t)	mtod(m,t)
1698# endif
1699
1700# ifndef COPYIN
1701#  define	COPYIN(a,b,c)	(bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0)
1702#  define	COPYOUT(a,b,c)	(bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0)
1703# endif
1704
1705# ifndef KMALLOC
1706#  define	KMALLOC(a,b)	(a) = (b)new_kmem_alloc(sizeof(*(a)), \
1707							KMEM_NOSLEEP)
1708#  define	KMALLOCS(a,b,c)	(a) = (b)new_kmem_alloc((c), KMEM_NOSLEEP)
1709# endif
1710
1711# ifndef	GET_MINOR
1712#  define	GET_MINOR(x)	dev2unit(x)
1713# endif
1714# define	PANIC(x,y)	if (x) panic y
1715#endif /* _KERNEL */
1716
1717#if !defined(IFNAME) && !defined(_KERNEL)
1718# define	IFNAME(x)	((struct ifnet *)x)->if_name
1719#endif
1720#ifndef	COPYIFNAME
1721# define	NEED_FRGETIFNAME
1722extern	char	*fr_getifname __P((struct ifnet *, char *));
1723# define	COPYIFNAME(v, x, b) \
1724				fr_getifname((struct ifnet *)x, b)
1725#endif
1726
1727#ifndef ASSERT
1728# ifdef _KERNEL
1729#  define	ASSERT(x)
1730# else
1731#  define	ASSERT(x)	do { if (!(x)) abort(); } while (0)
1732# endif
1733#endif
1734
1735#ifndef BCOPYIN
1736#  define	BCOPYIN(a,b,c)	(bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0)
1737#  define	BCOPYOUT(a,b,c)	(bcopy((caddr_t)(a), (caddr_t)(b), (c)), 0)
1738#endif
1739
1740/*
1741 * Because the ctype(3) posix definition, if used "safely" in code everywhere,
1742 * would mean all normal code that walks through strings needed casts.  Yuck.
1743 */
1744#define	ISALNUM(x)	isalnum((u_char)(x))
1745#define	ISALPHA(x)	isalpha((u_char)(x))
1746#define	ISASCII(x)	isascii((u_char)(x))
1747#define	ISDIGIT(x)	isdigit((u_char)(x))
1748#define	ISPRINT(x)	isprint((u_char)(x))
1749#define	ISSPACE(x)	isspace((u_char)(x))
1750#define	ISUPPER(x)	isupper((u_char)(x))
1751#define	ISXDIGIT(x)	isxdigit((u_char)(x))
1752#define	ISLOWER(x)	islower((u_char)(x))
1753#define	TOUPPER(x)	toupper((u_char)(x))
1754#define	TOLOWER(x)	tolower((u_char)(x))
1755
1756/*
1757 * If mutexes aren't being used, turn all the mutex functions into null-ops.
1758 */
1759#if !defined(USE_MUTEXES)
1760# define	USE_SPL			1
1761# undef		RW_DESTROY
1762# undef		MUTEX_INIT
1763# undef		MUTEX_NUKE
1764# undef		MUTEX_DESTROY
1765# define	MUTEX_ENTER(x)		;
1766# define	READ_ENTER(x)		;
1767# define	WRITE_ENTER(x)		;
1768# define	MUTEX_DOWNGRADE(x)	;
1769# define	RWLOCK_INIT(x, y)	;
1770# define	RWLOCK_EXIT(x)		;
1771# define	RW_DESTROY(x)		;
1772# define	MUTEX_EXIT(x)		;
1773# define	MUTEX_INIT(x,y)		;
1774# define	MUTEX_DESTROY(x)	;
1775# define	MUTEX_NUKE(x)		;
1776#endif /* !USE_MUTEXES */
1777#ifndef	ATOMIC_INC
1778# define	ATOMIC_INC(x)		(x)++
1779# define	ATOMIC_DEC(x)		(x)--
1780#endif
1781
1782#if defined(USE_SPL) && defined(_KERNEL)
1783# define	SPL_INT(x)	int x
1784#else
1785# define	SPL_INT(x)
1786#endif
1787
1788/*
1789 * If there are no atomic operations for bit sizes defined, define them to all
1790 * use a generic one that works for all sizes.
1791 */
1792#ifndef	ATOMIC_INCL
1793# define	ATOMIC_INCL		ATOMIC_INC
1794# define	ATOMIC_INC64		ATOMIC_INC
1795# define	ATOMIC_INC32		ATOMIC_INC
1796# define	ATOMIC_INC16		ATOMIC_INC
1797# define	ATOMIC_DECL		ATOMIC_DEC
1798# define	ATOMIC_DEC64		ATOMIC_DEC
1799# define	ATOMIC_DEC32		ATOMIC_DEC
1800# define	ATOMIC_DEC16		ATOMIC_DEC
1801#endif
1802
1803#ifndef HDR_T_PRIVATE
1804typedef	struct	tcphdr	tcphdr_t;
1805typedef	struct	udphdr	udphdr_t;
1806#endif
1807typedef	struct	icmp	icmphdr_t;
1808typedef	struct	ip	ip_t;
1809typedef	struct	ether_header	ether_header_t;
1810typedef	struct	tcpiphdr	tcpiphdr_t;
1811
1812#ifndef	FR_GROUPLEN
1813# define	FR_GROUPLEN	16
1814#endif
1815
1816#ifndef offsetof
1817# define offsetof(t,m) (int)((&((t *)0L)->m))
1818#endif
1819
1820/*
1821 * This set of macros has been brought about because on Tru64 it is not
1822 * possible to easily assign or examine values in a structure that are
1823 * bit fields.
1824 */
1825#ifndef IP_V
1826# define	IP_V(x)		(x)->ip_v
1827#endif
1828#ifndef	IP_V_A
1829# define	IP_V_A(x,y)	(x)->ip_v = (y)
1830#endif
1831#ifndef	IP_HL
1832# define	IP_HL(x)	(x)->ip_hl
1833#endif
1834#ifndef	IP_HL_A
1835# define	IP_HL_A(x,y)	(x)->ip_hl = ((y) & 0xf)
1836#endif
1837#ifndef	TCP_X2
1838# define	TCP_X2(x)	(x)->th_x2
1839#endif
1840#ifndef	TCP_X2_A
1841# define	TCP_X2_A(x,y)	(x)->th_x2 = (y)
1842#endif
1843#ifndef	TCP_OFF
1844# define	TCP_OFF(x)	(x)->th_off
1845#endif
1846#ifndef	TCP_OFF_A
1847# define	TCP_OFF_A(x,y)	(x)->th_off = (y)
1848#endif
1849#define	IPMINLEN(i, h)	((i)->ip_len >= (IP_HL(i) * 4 + sizeof(struct h)))
1850
1851
1852/*
1853 * XXX - This is one of those *awful* hacks which nobody likes
1854 */
1855#ifdef	ultrix
1856#define	A_A
1857#else
1858#define	A_A	&
1859#endif
1860
1861#define	TCPF_ALL	(TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG|\
1862			 TH_ECN|TH_CWR)
1863
1864#if (BSD >= 199306) && !defined(m_act)
1865# define	m_act	m_nextpkt
1866#endif
1867
1868/*
1869 * Security Options for Intenet Protocol (IPSO) as defined in RFC 1108.
1870 *
1871 * Basic Option
1872 *
1873 * 00000001   -   (Reserved 4)
1874 * 00111101   -   Top Secret
1875 * 01011010   -   Secret
1876 * 10010110   -   Confidential
1877 * 01100110   -   (Reserved 3)
1878 * 11001100   -   (Reserved 2)
1879 * 10101011   -   Unclassified
1880 * 11110001   -   (Reserved 1)
1881 */
1882#define	IPSO_CLASS_RES4		0x01
1883#define	IPSO_CLASS_TOPS		0x3d
1884#define	IPSO_CLASS_SECR		0x5a
1885#define	IPSO_CLASS_CONF		0x96
1886#define	IPSO_CLASS_RES3		0x66
1887#define	IPSO_CLASS_RES2		0xcc
1888#define	IPSO_CLASS_UNCL		0xab
1889#define	IPSO_CLASS_RES1		0xf1
1890
1891#define	IPSO_AUTH_GENSER	0x80
1892#define	IPSO_AUTH_ESI		0x40
1893#define	IPSO_AUTH_SCI		0x20
1894#define	IPSO_AUTH_NSA		0x10
1895#define	IPSO_AUTH_DOE		0x08
1896#define	IPSO_AUTH_UN		0x06
1897#define	IPSO_AUTH_FTE		0x01
1898
1899/*
1900 * IP option #defines
1901 */
1902#undef	IPOPT_RR
1903#define	IPOPT_RR	7
1904#undef	IPOPT_ZSU
1905#define	IPOPT_ZSU	10	/* ZSU */
1906#undef	IPOPT_MTUP
1907#define	IPOPT_MTUP	11	/* MTUP */
1908#undef	IPOPT_MTUR
1909#define	IPOPT_MTUR	12	/* MTUR */
1910#undef	IPOPT_ENCODE
1911#define	IPOPT_ENCODE	15	/* ENCODE */
1912#undef	IPOPT_TS
1913#define	IPOPT_TS	68
1914#undef	IPOPT_TR
1915#define	IPOPT_TR	82	/* TR */
1916#undef	IPOPT_SECURITY
1917#define	IPOPT_SECURITY	130
1918#undef	IPOPT_LSRR
1919#define	IPOPT_LSRR	131
1920#undef	IPOPT_E_SEC
1921#define	IPOPT_E_SEC	133	/* E-SEC */
1922#undef	IPOPT_CIPSO
1923#define	IPOPT_CIPSO	134	/* CIPSO */
1924#undef	IPOPT_SATID
1925#define	IPOPT_SATID	136
1926#ifndef	IPOPT_SID
1927# define	IPOPT_SID	IPOPT_SATID
1928#endif
1929#undef	IPOPT_SSRR
1930#define	IPOPT_SSRR	137
1931#undef	IPOPT_ADDEXT
1932#define	IPOPT_ADDEXT	147	/* ADDEXT */
1933#undef	IPOPT_VISA
1934#define	IPOPT_VISA	142	/* VISA */
1935#undef	IPOPT_IMITD
1936#define	IPOPT_IMITD	144	/* IMITD */
1937#undef	IPOPT_EIP
1938#define	IPOPT_EIP	145	/* EIP */
1939#undef	IPOPT_RTRALRT
1940#define	IPOPT_RTRALRT	148	/* RTRALRT */
1941#undef	IPOPT_SDB
1942#define	IPOPT_SDB	149
1943#undef	IPOPT_NSAPA
1944#define	IPOPT_NSAPA	150
1945#undef	IPOPT_DPS
1946#define	IPOPT_DPS	151
1947#undef	IPOPT_UMP
1948#define	IPOPT_UMP	152
1949#undef	IPOPT_FINN
1950#define	IPOPT_FINN	205	/* FINN */
1951
1952#ifndef TCPOPT_EOL
1953# define TCPOPT_EOL		0
1954#endif
1955#ifndef TCPOPT_NOP
1956# define TCPOPT_NOP		1
1957#endif
1958#ifndef TCPOPT_MAXSEG
1959# define TCPOPT_MAXSEG		2
1960#endif
1961#ifndef TCPOLEN_MAXSEG
1962# define TCPOLEN_MAXSEG		4
1963#endif
1964#ifndef TCPOPT_WINDOW
1965# define TCPOPT_WINDOW		3
1966#endif
1967#ifndef TCPOLEN_WINDOW
1968# define TCPOLEN_WINDOW		3
1969#endif
1970#ifndef TCPOPT_SACK_PERMITTED
1971# define TCPOPT_SACK_PERMITTED	4
1972#endif
1973#ifndef TCPOLEN_SACK_PERMITTED
1974# define TCPOLEN_SACK_PERMITTED	2
1975#endif
1976#ifndef TCPOPT_SACK
1977# define TCPOPT_SACK		5
1978#endif
1979#ifndef TCPOPT_TIMESTAMP
1980# define TCPOPT_TIMESTAMP	8
1981#endif
1982
1983#ifndef	ICMP_MINLEN
1984# define	ICMP_MINLEN	8
1985#endif
1986#ifndef	ICMP_ECHOREPLY
1987# define	ICMP_ECHOREPLY	0
1988#endif
1989#ifndef	ICMP_UNREACH
1990# define	ICMP_UNREACH	3
1991#endif
1992#ifndef	ICMP_UNREACH_NET
1993# define	ICMP_UNREACH_NET	0
1994#endif
1995#ifndef	ICMP_UNREACH_HOST
1996# define	ICMP_UNREACH_HOST	1
1997#endif
1998#ifndef	ICMP_UNREACH_PROTOCOL
1999# define	ICMP_UNREACH_PROTOCOL	2
2000#endif
2001#ifndef	ICMP_UNREACH_PORT
2002# define	ICMP_UNREACH_PORT	3
2003#endif
2004#ifndef	ICMP_UNREACH_NEEDFRAG
2005# define	ICMP_UNREACH_NEEDFRAG	4
2006#endif
2007#ifndef	ICMP_UNREACH_SRCFAIL
2008# define	ICMP_UNREACH_SRCFAIL	5
2009#endif
2010#ifndef	ICMP_UNREACH_NET_UNKNOWN
2011# define	ICMP_UNREACH_NET_UNKNOWN	6
2012#endif
2013#ifndef	ICMP_UNREACH_HOST_UNKNOWN
2014# define	ICMP_UNREACH_HOST_UNKNOWN	7
2015#endif
2016#ifndef	ICMP_UNREACH_ISOLATED
2017# define	ICMP_UNREACH_ISOLATED	8
2018#endif
2019#ifndef	ICMP_UNREACH_NET_PROHIB
2020# define	ICMP_UNREACH_NET_PROHIB	9
2021#endif
2022#ifndef	ICMP_UNREACH_HOST_PROHIB
2023# define	ICMP_UNREACH_HOST_PROHIB	10
2024#endif
2025#ifndef	ICMP_UNREACH_TOSNET
2026# define	ICMP_UNREACH_TOSNET	11
2027#endif
2028#ifndef	ICMP_UNREACH_TOSHOST
2029# define	ICMP_UNREACH_TOSHOST	12
2030#endif
2031#ifndef	ICMP_UNREACH_ADMIN_PROHIBIT
2032# define	ICMP_UNREACH_ADMIN_PROHIBIT	13
2033#endif
2034#ifndef	ICMP_UNREACH_FILTER
2035# define	ICMP_UNREACH_FILTER	13
2036#endif
2037#ifndef	ICMP_UNREACH_HOST_PRECEDENCE
2038# define	ICMP_UNREACH_HOST_PRECEDENCE	14
2039#endif
2040#ifndef	ICMP_UNREACH_PRECEDENCE_CUTOFF
2041# define	ICMP_UNREACH_PRECEDENCE_CUTOFF	15
2042#endif
2043#ifndef	ICMP_SOURCEQUENCH
2044# define	ICMP_SOURCEQUENCH	4
2045#endif
2046#ifndef	ICMP_REDIRECT_NET
2047# define	ICMP_REDIRECT_NET	0
2048#endif
2049#ifndef	ICMP_REDIRECT_HOST
2050# define	ICMP_REDIRECT_HOST	1
2051#endif
2052#ifndef	ICMP_REDIRECT_TOSNET
2053# define	ICMP_REDIRECT_TOSNET	2
2054#endif
2055#ifndef	ICMP_REDIRECT_TOSHOST
2056# define	ICMP_REDIRECT_TOSHOST	3
2057#endif
2058#ifndef	ICMP_ALTHOSTADDR
2059# define	ICMP_ALTHOSTADDR	6
2060#endif
2061#ifndef	ICMP_TIMXCEED
2062# define	ICMP_TIMXCEED	11
2063#endif
2064#ifndef	ICMP_TIMXCEED_INTRANS
2065# define	ICMP_TIMXCEED_INTRANS	0
2066#endif
2067#ifndef	ICMP_TIMXCEED_REASS
2068# define		ICMP_TIMXCEED_REASS	1
2069#endif
2070#ifndef	ICMP_PARAMPROB
2071# define	ICMP_PARAMPROB	12
2072#endif
2073#ifndef	ICMP_PARAMPROB_ERRATPTR
2074# define	ICMP_PARAMPROB_ERRATPTR	0
2075#endif
2076#ifndef	ICMP_PARAMPROB_OPTABSENT
2077# define	ICMP_PARAMPROB_OPTABSENT	1
2078#endif
2079#ifndef	ICMP_PARAMPROB_LENGTH
2080# define	ICMP_PARAMPROB_LENGTH	2
2081#endif
2082#ifndef ICMP_TSTAMP
2083# define	ICMP_TSTAMP	13
2084#endif
2085#ifndef ICMP_TSTAMPREPLY
2086# define	ICMP_TSTAMPREPLY	14
2087#endif
2088#ifndef ICMP_IREQ
2089# define	ICMP_IREQ	15
2090#endif
2091#ifndef ICMP_IREQREPLY
2092# define	ICMP_IREQREPLY	16
2093#endif
2094#ifndef	ICMP_MASKREQ
2095# define	ICMP_MASKREQ	17
2096#endif
2097#ifndef ICMP_MASKREPLY
2098# define	ICMP_MASKREPLY	18
2099#endif
2100#ifndef	ICMP_TRACEROUTE
2101# define	ICMP_TRACEROUTE	30
2102#endif
2103#ifndef	ICMP_DATACONVERR
2104# define	ICMP_DATACONVERR	31
2105#endif
2106#ifndef	ICMP_MOBILE_REDIRECT
2107# define	ICMP_MOBILE_REDIRECT	32
2108#endif
2109#ifndef	ICMP_IPV6_WHEREAREYOU
2110# define	ICMP_IPV6_WHEREAREYOU	33
2111#endif
2112#ifndef	ICMP_IPV6_IAMHERE
2113# define	ICMP_IPV6_IAMHERE	34
2114#endif
2115#ifndef	ICMP_MOBILE_REGREQUEST
2116# define	ICMP_MOBILE_REGREQUEST	35
2117#endif
2118#ifndef	ICMP_MOBILE_REGREPLY
2119# define	ICMP_MOBILE_REGREPLY	36
2120#endif
2121#ifndef	ICMP_SKIP
2122# define	ICMP_SKIP	39
2123#endif
2124#ifndef	ICMP_PHOTURIS
2125# define	ICMP_PHOTURIS	40
2126#endif
2127#ifndef	ICMP_PHOTURIS_UNKNOWN_INDEX
2128# define	ICMP_PHOTURIS_UNKNOWN_INDEX	1
2129#endif
2130#ifndef	ICMP_PHOTURIS_AUTH_FAILED
2131# define	ICMP_PHOTURIS_AUTH_FAILED	2
2132#endif
2133#ifndef	ICMP_PHOTURIS_DECRYPT_FAILED
2134# define	ICMP_PHOTURIS_DECRYPT_FAILED	3
2135#endif
2136#ifndef	IPVERSION
2137# define	IPVERSION	4
2138#endif
2139#ifndef	IPOPT_MINOFF
2140# define	IPOPT_MINOFF	4
2141#endif
2142#ifndef	IPOPT_COPIED
2143# define	IPOPT_COPIED(x)	((x)&0x80)
2144#endif
2145#ifndef	IPOPT_EOL
2146# define	IPOPT_EOL	0
2147#endif
2148#ifndef	IPOPT_NOP
2149# define	IPOPT_NOP	1
2150#endif
2151#ifndef	IP_MF
2152# define	IP_MF	((u_short)0x2000)
2153#endif
2154#ifndef	ETHERTYPE_IP
2155# define	ETHERTYPE_IP	((u_short)0x0800)
2156#endif
2157#ifndef	TH_FIN
2158# define	TH_FIN	0x01
2159#endif
2160#ifndef	TH_SYN
2161# define	TH_SYN	0x02
2162#endif
2163#ifndef	TH_RST
2164# define	TH_RST	0x04
2165#endif
2166#ifndef	TH_PUSH
2167# define	TH_PUSH	0x08
2168#endif
2169#ifndef	TH_ACK
2170# define	TH_ACK	0x10
2171#endif
2172#ifndef	TH_URG
2173# define	TH_URG	0x20
2174#endif
2175#undef	TH_ACKMASK
2176#define	TH_ACKMASK	(TH_FIN|TH_SYN|TH_RST|TH_ACK)
2177
2178#ifndef	IPOPT_EOL
2179# define	IPOPT_EOL	0
2180#endif
2181#ifndef	IPOPT_NOP
2182# define	IPOPT_NOP	1
2183#endif
2184#ifndef	IPOPT_RR
2185# define	IPOPT_RR	7
2186#endif
2187#ifndef	IPOPT_TS
2188# define	IPOPT_TS	68
2189#endif
2190#ifndef	IPOPT_SECURITY
2191# define	IPOPT_SECURITY	130
2192#endif
2193#ifndef	IPOPT_LSRR
2194# define	IPOPT_LSRR	131
2195#endif
2196#ifndef	IPOPT_SATID
2197# define	IPOPT_SATID	136
2198#endif
2199#ifndef	IPOPT_SSRR
2200# define	IPOPT_SSRR	137
2201#endif
2202#ifndef	IPOPT_SECUR_UNCLASS
2203# define	IPOPT_SECUR_UNCLASS	((u_short)0x0000)
2204#endif
2205#ifndef	IPOPT_SECUR_CONFID
2206# define	IPOPT_SECUR_CONFID	((u_short)0xf135)
2207#endif
2208#ifndef	IPOPT_SECUR_EFTO
2209# define	IPOPT_SECUR_EFTO	((u_short)0x789a)
2210#endif
2211#ifndef	IPOPT_SECUR_MMMM
2212# define	IPOPT_SECUR_MMMM	((u_short)0xbc4d)
2213#endif
2214#ifndef	IPOPT_SECUR_RESTR
2215# define	IPOPT_SECUR_RESTR	((u_short)0xaf13)
2216#endif
2217#ifndef	IPOPT_SECUR_SECRET
2218# define	IPOPT_SECUR_SECRET	((u_short)0xd788)
2219#endif
2220#ifndef IPOPT_SECUR_TOPSECRET
2221# define	IPOPT_SECUR_TOPSECRET	((u_short)0x6bc5)
2222#endif
2223#ifndef IPOPT_OLEN
2224# define	IPOPT_OLEN	1
2225#endif
2226#ifndef	IPPROTO_HOPOPTS
2227# define	IPPROTO_HOPOPTS	0
2228#endif
2229#ifndef	IPPROTO_ENCAP
2230# define	IPPROTO_ENCAP	4
2231#endif
2232#ifndef	IPPROTO_IPV6
2233# define	IPPROTO_IPV6	41
2234#endif
2235#ifndef	IPPROTO_ROUTING
2236# define	IPPROTO_ROUTING	43
2237#endif
2238#ifndef	IPPROTO_FRAGMENT
2239# define	IPPROTO_FRAGMENT	44
2240#endif
2241#ifndef	IPPROTO_GRE
2242# define	IPPROTO_GRE	47	/* GRE encaps RFC 1701 */
2243#endif
2244#ifndef	IPPROTO_ESP
2245# define	IPPROTO_ESP	50
2246#endif
2247#ifndef	IPPROTO_AH
2248# define	IPPROTO_AH	51
2249#endif
2250#ifndef	IPPROTO_ICMPV6
2251# define	IPPROTO_ICMPV6	58
2252#endif
2253#ifndef	IPPROTO_NONE
2254# define	IPPROTO_NONE	59
2255#endif
2256#ifndef	IPPROTO_DSTOPTS
2257# define	IPPROTO_DSTOPTS	60
2258#endif
2259#ifndef	IPPROTO_MOBILITY
2260# define	IPPROTO_MOBILITY	135
2261#endif
2262
2263#ifndef	ICMP_ROUTERADVERT
2264# define	ICMP_ROUTERADVERT	9
2265#endif
2266#ifndef	ICMP_ROUTERSOLICIT
2267# define	ICMP_ROUTERSOLICIT	10
2268#endif
2269#ifndef	ICMP6_DST_UNREACH
2270# define	ICMP6_DST_UNREACH	1
2271#endif
2272#ifndef	ICMP6_PACKET_TOO_BIG
2273# define	ICMP6_PACKET_TOO_BIG	2
2274#endif
2275#ifndef	ICMP6_TIME_EXCEEDED
2276# define	ICMP6_TIME_EXCEEDED	3
2277#endif
2278#ifndef	ICMP6_PARAM_PROB
2279# define	ICMP6_PARAM_PROB	4
2280#endif
2281
2282#ifndef	ICMP6_ECHO_REQUEST
2283# define	ICMP6_ECHO_REQUEST	128
2284#endif
2285#ifndef	ICMP6_ECHO_REPLY
2286# define	ICMP6_ECHO_REPLY	129
2287#endif
2288#ifndef	ICMP6_MEMBERSHIP_QUERY
2289# define	ICMP6_MEMBERSHIP_QUERY	130
2290#endif
2291#ifndef	MLD6_LISTENER_QUERY
2292# define	MLD6_LISTENER_QUERY	130
2293#endif
2294#ifndef	ICMP6_MEMBERSHIP_REPORT
2295# define	ICMP6_MEMBERSHIP_REPORT	131
2296#endif
2297#ifndef	MLD6_LISTENER_REPORT
2298# define	MLD6_LISTENER_REPORT	131
2299#endif
2300#ifndef	ICMP6_MEMBERSHIP_REDUCTION
2301# define	ICMP6_MEMBERSHIP_REDUCTION	132
2302#endif
2303#ifndef	MLD6_LISTENER_DONE
2304# define	MLD6_LISTENER_DONE	132
2305#endif
2306#ifndef	ND_ROUTER_SOLICIT
2307# define	ND_ROUTER_SOLICIT	133
2308#endif
2309#ifndef	ND_ROUTER_ADVERT
2310# define	ND_ROUTER_ADVERT	134
2311#endif
2312#ifndef	ND_NEIGHBOR_SOLICIT
2313# define	ND_NEIGHBOR_SOLICIT	135
2314#endif
2315#ifndef	ND_NEIGHBOR_ADVERT
2316# define	ND_NEIGHBOR_ADVERT	136
2317#endif
2318#ifndef	ND_REDIRECT
2319# define	ND_REDIRECT	137
2320#endif
2321#ifndef	ICMP6_ROUTER_RENUMBERING
2322# define	ICMP6_ROUTER_RENUMBERING	138
2323#endif
2324#ifndef	ICMP6_WRUREQUEST
2325# define	ICMP6_WRUREQUEST	139
2326#endif
2327#ifndef	ICMP6_WRUREPLY
2328# define	ICMP6_WRUREPLY		140
2329#endif
2330#ifndef	ICMP6_FQDN_QUERY
2331# define	ICMP6_FQDN_QUERY	139
2332#endif
2333#ifndef	ICMP6_FQDN_REPLY
2334# define	ICMP6_FQDN_REPLY	140
2335#endif
2336#ifndef	ICMP6_NI_QUERY
2337# define	ICMP6_NI_QUERY		139
2338#endif
2339#ifndef	ICMP6_NI_REPLY
2340# define	ICMP6_NI_REPLY		140
2341#endif
2342#ifndef	MLD6_MTRACE_RESP
2343# define	MLD6_MTRACE_RESP	200
2344#endif
2345#ifndef	MLD6_MTRACE
2346# define	MLD6_MTRACE		201
2347#endif
2348#ifndef	ICMP6_HADISCOV_REQUEST
2349# define	ICMP6_HADISCOV_REQUEST	202
2350#endif
2351#ifndef	ICMP6_HADISCOV_REPLY
2352# define	ICMP6_HADISCOV_REPLY	203
2353#endif
2354#ifndef	ICMP6_MOBILEPREFIX_SOLICIT
2355# define	ICMP6_MOBILEPREFIX_SOLICIT	204
2356#endif
2357#ifndef	ICMP6_MOBILEPREFIX_ADVERT
2358# define	ICMP6_MOBILEPREFIX_ADVERT	205
2359#endif
2360#ifndef	ICMP6_MAXTYPE
2361# define	ICMP6_MAXTYPE		205
2362#endif
2363
2364#ifndef	ICMP6_DST_UNREACH_NOROUTE
2365# define	ICMP6_DST_UNREACH_NOROUTE	0
2366#endif
2367#ifndef	ICMP6_DST_UNREACH_ADMIN
2368# define	ICMP6_DST_UNREACH_ADMIN		1
2369#endif
2370#ifndef	ICMP6_DST_UNREACH_NOTNEIGHBOR
2371# define	ICMP6_DST_UNREACH_NOTNEIGHBOR	2
2372#endif
2373#ifndef	ICMP6_DST_UNREACH_BEYONDSCOPE
2374# define	ICMP6_DST_UNREACH_BEYONDSCOPE	2
2375#endif
2376#ifndef	ICMP6_DST_UNREACH_ADDR
2377# define	ICMP6_DST_UNREACH_ADDR		3
2378#endif
2379#ifndef	ICMP6_DST_UNREACH_NOPORT
2380# define	ICMP6_DST_UNREACH_NOPORT	4
2381#endif
2382#ifndef	ICMP6_TIME_EXCEED_TRANSIT
2383# define	ICMP6_TIME_EXCEED_TRANSIT	0
2384#endif
2385#ifndef	ICMP6_TIME_EXCEED_REASSEMBLY
2386# define	ICMP6_TIME_EXCEED_REASSEMBLY	1
2387#endif
2388
2389#ifndef	ICMP6_NI_SUCCESS
2390# define	ICMP6_NI_SUCCESS	0
2391#endif
2392#ifndef	ICMP6_NI_REFUSED
2393# define	ICMP6_NI_REFUSED	1
2394#endif
2395#ifndef	ICMP6_NI_UNKNOWN
2396# define	ICMP6_NI_UNKNOWN	2
2397#endif
2398
2399#ifndef	ICMP6_ROUTER_RENUMBERING_COMMAND
2400# define	ICMP6_ROUTER_RENUMBERING_COMMAND	0
2401#endif
2402#ifndef	ICMP6_ROUTER_RENUMBERING_RESULT
2403# define	ICMP6_ROUTER_RENUMBERING_RESULT	1
2404#endif
2405#ifndef	ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET
2406# define	ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET	255
2407#endif
2408
2409#ifndef	ICMP6_PARAMPROB_HEADER
2410# define	ICMP6_PARAMPROB_HEADER	0
2411#endif
2412#ifndef	ICMP6_PARAMPROB_NEXTHEADER
2413# define	ICMP6_PARAMPROB_NEXTHEADER	1
2414#endif
2415#ifndef	ICMP6_PARAMPROB_OPTION
2416# define	ICMP6_PARAMPROB_OPTION	2
2417#endif
2418
2419#ifndef	ICMP6_NI_SUBJ_IPV6
2420# define	ICMP6_NI_SUBJ_IPV6	0
2421#endif
2422#ifndef	ICMP6_NI_SUBJ_FQDN
2423# define	ICMP6_NI_SUBJ_FQDN	1
2424#endif
2425#ifndef	ICMP6_NI_SUBJ_IPV4
2426# define	ICMP6_NI_SUBJ_IPV4	2
2427#endif
2428
2429/*
2430 * ECN is a new addition to TCP - RFC 2481
2431 */
2432#ifndef TH_ECN
2433# define	TH_ECN	0x40
2434#endif
2435#ifndef TH_CWR
2436# define	TH_CWR	0x80
2437#endif
2438#define	TH_ECNALL	(TH_ECN|TH_CWR)
2439
2440/*
2441 * TCP States
2442 */
2443#define IPF_TCPS_LISTEN		0	/* listening for connection */
2444#define IPF_TCPS_SYN_SENT	1	/* active, have sent syn */
2445#define IPF_TCPS_SYN_RECEIVED	2	/* have send and received syn */
2446#define IPF_TCPS_HALF_ESTAB	3	/* for connections not fully "up" */
2447/* states < IPF_TCPS_ESTABLISHED are those where connections not established */
2448#define IPF_TCPS_ESTABLISHED	4	/* established */
2449#define IPF_TCPS_CLOSE_WAIT	5	/* rcvd fin, waiting for close */
2450/* states > IPF_TCPS_CLOSE_WAIT are those where user has closed */
2451#define IPF_TCPS_FIN_WAIT_1	6	/* have closed, sent fin */
2452#define IPF_TCPS_CLOSING	7	/* closed xchd FIN; await FIN ACK */
2453#define IPF_TCPS_LAST_ACK	8	/* had fin and close; await FIN ACK */
2454/* states > IPF_TCPS_CLOSE_WAIT && < IPF_TCPS_FIN_WAIT_2 await ACK of FIN */
2455#define IPF_TCPS_FIN_WAIT_2	9	/* have closed, fin is acked */
2456#define IPF_TCPS_TIME_WAIT	10	/* in 2*msl quiet wait after close */
2457#define IPF_TCPS_CLOSED		11	/* closed */
2458#define IPF_TCP_NSTATES		12
2459
2460#define	TCP_MSL			120
2461
2462#undef	ICMP_MAX_UNREACH
2463#define	ICMP_MAX_UNREACH	14
2464#undef	ICMP_MAXTYPE
2465#define	ICMP_MAXTYPE		18
2466
2467#ifndef	IFNAMSIZ
2468#define	IFNAMSIZ		16
2469#endif
2470
2471#ifndef	LOG_FTP
2472# define	LOG_FTP		(11<<3)
2473#endif
2474#ifndef	LOG_AUTHPRIV
2475# define	LOG_AUTHPRIV	(10<<3)
2476#endif
2477#ifndef	LOG_AUDIT
2478# define	LOG_AUDIT	(13<<3)
2479#endif
2480#ifndef	LOG_NTP
2481# define	LOG_NTP		(12<<3)
2482#endif
2483#ifndef	LOG_SECURITY
2484# define	LOG_SECURITY	(13<<3)
2485#endif
2486#ifndef	LOG_LFMT
2487# define	LOG_LFMT	(14<<3)
2488#endif
2489#ifndef	LOG_CONSOLE
2490# define	LOG_CONSOLE	(14<<3)
2491#endif
2492
2493/*
2494 * ICMP error replies have an IP header (20 bytes), 8 bytes of ICMP data,
2495 * another IP header and then 64 bits of data, totalling 56.  Of course,
2496 * the last 64 bits is dependent on that being available.
2497 */
2498#define	ICMPERR_ICMPHLEN	8
2499#define	ICMPERR_IPICMPHLEN	(20 + 8)
2500#define	ICMPERR_MINPKTLEN	(20 + 8 + 20)
2501#define	ICMPERR_MAXPKTLEN	(20 + 8 + 20 + 8)
2502#define ICMP6ERR_MINPKTLEN	(40 + 8)
2503#define ICMP6ERR_IPICMPHLEN	(40 + 8 + 40)
2504
2505#ifndef MIN
2506# define	MIN(a,b)	(((a)<(b))?(a):(b))
2507#endif
2508
2509#ifdef IPF_DEBUG
2510# define	DPRINT(x)	printf x
2511#else
2512# define	DPRINT(x)
2513#endif
2514
2515#ifdef RESCUE
2516# undef IPFILTER_BPF
2517#endif
2518
2519#endif	/* __IP_COMPAT_H__ */
2520