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source: rtems-libbsd/freebsd/sys/contrib/pf/net/pfvar.h @ 3d1e767

55-freebsd-126-freebsd-12freebsd-9.3

Last change on this file since 3d1e767 was 3d1e767, checked in by Sebastian Huber <sebastian.huber@…>, on 04/27/16 at 08:25:22
Directly use <sys/types.h> provided by Newlib
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File size: 63.6 KB

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1	/* $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $ */
2
3	/*
4	* Copyright (c) 2001 Daniel Hartmeier
5	* All rights reserved.
6	*
7	* Redistribution and use in source and binary forms, with or without
8	* modification, are permitted provided that the following conditions
9	* are met:
10	*
11	* - Redistributions of source code must retain the above copyright
12	* notice, this list of conditions and the following disclaimer.
13	* - Redistributions in binary form must reproduce the above
14	* copyright notice, this list of conditions and the following
15	* disclaimer in the documentation and/or other materials provided
16	* with the distribution.
17	*
18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22	* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24	* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28	* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29	* POSSIBILITY OF SUCH DAMAGE.
30	*
31	*/
32
33	#ifndef _NET_PFVAR_H_
34	#define _NET_PFVAR_H_
35
36	#include <rtems/bsd/sys/param.h>
37	#include <sys/types.h>
38	#include <sys/queue.h>
39	#include <sys/tree.h>
40	#ifdef __FreeBSD__
41	#include <rtems/bsd/sys/lock.h>
42	#include <sys/sx.h>
43	#else
44	#include <sys/rwlock.h>
45	#endif
46
47	#include <net/radix.h>
48	#include <net/route.h>
49	#ifdef __FreeBSD__
50	#include <net/if_clone.h>
51	#include <net/pf_mtag.h>
52	#include <vm/uma.h>
53	#else
54	#include <netinet/ip_ipsp.h>
55	#endif
56
57	#ifdef __FreeBSD__
58	#include <netinet/in.h>
59	#endif
60
61	#include <netinet/tcp_fsm.h>
62
63	struct ip;
64	struct ip6_hdr;
65	#ifdef __FreeBSD__
66	struct inpcb;
67	#endif
68
69	#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
70	#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
71
72	#define PF_MD5_DIGEST_LENGTH 16
73	#ifdef MD5_DIGEST_LENGTH
74	#if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
75	#error
76	#endif
77	#endif
78
79	enum { PF_INOUT, PF_IN, PF_OUT };
80	enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
81	PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, PF_DEFER };
82	enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
83	PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
84	enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
85	PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
86	enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
87	enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
88	PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
89	PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
90	enum { PF_GET_NONE, PF_GET_CLR_CNTR };
91	enum { PF_SK_WIRE, PF_SK_STACK, PF_SK_BOTH };
92
93	/*
94	* Note about PFTM_*: real indices into pf_rule.timeout[] come before
95	* PFTM_MAX, special cases afterwards. See pf_state_expires().
96	*/
97	enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
98	PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
99	PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
100	PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
101	PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
102	PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
103	PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
104	PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
105	PFTM_UNTIL_PACKET };
106
107	/* PFTM default values */
108	#define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
109	#define PFTM_TCP_OPENING_VAL 30 /* No response yet */
110	#define PFTM_TCP_ESTABLISHED_VAL 246060/* Established */
111	#define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */
112	#define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
113	#define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
114	#define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
115	#define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
116	#define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
117	#define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
118	#define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
119	#define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
120	#define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
121	#define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
122	#define PFTM_FRAG_VAL 30 /* Fragment expire */
123	#define PFTM_INTERVAL_VAL 10 /* Expire interval */
124	#define PFTM_SRC_NODE_VAL 0 /* Source tracking */
125	#define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
126
127	enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
128	enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
129	PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
130	#define PF_POOL_IDMASK 0x0f
131	enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
132	PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
133	enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
134	PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED,
135	PF_ADDR_RANGE };
136	#define PF_POOL_TYPEMASK 0x0f
137	#define PF_POOL_STICKYADDR 0x20
138	#define PF_WSCALE_FLAG 0x80
139	#define PF_WSCALE_MASK 0x0f
140
141	#define PF_LOG 0x01
142	#define PF_LOG_ALL 0x02
143	#define PF_LOG_SOCKET_LOOKUP 0x04
144
145	struct pf_addr {
146	union {
147	struct in_addr v4;
148	struct in6_addr v6;
149	u_int8_t addr8[16];
150	u_int16_t addr16[8];
151	u_int32_t addr32[4];
152	} pfa; /* 128-bit address */
153	#define v4 pfa.v4
154	#define v6 pfa.v6
155	#define addr8 pfa.addr8
156	#define addr16 pfa.addr16
157	#define addr32 pfa.addr32
158	};
159
160	#define PF_TABLE_NAME_SIZE 32
161
162	#define PFI_AFLAG_NETWORK 0x01
163	#define PFI_AFLAG_BROADCAST 0x02
164	#define PFI_AFLAG_PEER 0x04
165	#define PFI_AFLAG_MODEMASK 0x07
166	#define PFI_AFLAG_NOALIAS 0x08
167
168	struct pf_addr_wrap {
169	union {
170	struct {
171	struct pf_addr addr;
172	struct pf_addr mask;
173	} a;
174	char ifname[IFNAMSIZ];
175	char tblname[PF_TABLE_NAME_SIZE];
176	#ifdef __FreeBSD__
177	#define RTLABEL_LEN 32
178	#endif
179	char rtlabelname[RTLABEL_LEN];
180	u_int32_t rtlabel;
181	} v;
182	union {
183	struct pfi_dynaddr *dyn;
184	struct pfr_ktable *tbl;
185	int dyncnt;
186	int tblcnt;
187	} p;
188	u_int8_t type; /* PF_ADDR_* */
189	u_int8_t iflags; /* PFI_AFLAG_* */
190	};
191
192	#ifdef _KERNEL
193
194	struct pfi_dynaddr {
195	TAILQ_ENTRY(pfi_dynaddr) entry;
196	struct pf_addr pfid_addr4;
197	struct pf_addr pfid_mask4;
198	struct pf_addr pfid_addr6;
199	struct pf_addr pfid_mask6;
200	struct pfr_ktable *pfid_kt;
201	struct pfi_kif *pfid_kif;
202	void *pfid_hook_cookie;
203	int pfid_net; /* mask or 128 */
204	int pfid_acnt4; /* address count IPv4 */
205	int pfid_acnt6; /* address count IPv6 */
206	sa_family_t pfid_af; /* rule af */
207	u_int8_t pfid_iflags; /* PFI_AFLAG_* */
208	};
209
210	/*
211	* Address manipulation macros
212	*/
213
214	#ifdef __FreeBSD__
215	#define splsoftnet() splnet()
216
217	#define HTONL(x) (x) = htonl((__uint32_t)(x))
218	#define HTONS(x) (x) = htons((__uint16_t)(x))
219	#define NTOHL(x) (x) = ntohl((__uint32_t)(x))
220	#define NTOHS(x) (x) = ntohs((__uint16_t)(x))
221
222	#define PF_NAME "pf"
223
224	#define PR_NOWAIT M_NOWAIT
225	#define PR_WAITOK M_WAITOK
226	#define PR_ZERO M_ZERO
227	#define pool_get(p, f) uma_zalloc(*(p), (f))
228	#define pool_put(p, o) uma_zfree(*(p), (o))
229
230	#define UMA_CREATE(var, type, desc) \
231	var = uma_zcreate(desc, sizeof(type), \
232	NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); \
233	if (var == NULL) \
234	break
235	#define UMA_DESTROY(var) \
236	if (var) \
237	uma_zdestroy(var)
238
239	#ifdef __FreeBSD__
240	extern struct mtx pf_task_mtx;
241
242	#define PF_LOCK_ASSERT() mtx_assert(&pf_task_mtx, MA_OWNED)
243	#define PF_UNLOCK_ASSERT() mtx_assert(&pf_task_mtx, MA_NOTOWNED)
244	#define PF_LOCK() mtx_lock(&pf_task_mtx)
245	#define PF_UNLOCK() mtx_unlock(&pf_task_mtx)
246	#else
247	#define PF_LOCK_ASSERT()
248	#define PF_UNLOCK_ASSERT()
249	#define PF_LOCK()
250	#define PF_UNLOCK()
251	#endif /* __FreeBSD__ */
252
253	#define PF_COPYIN(uaddr, kaddr, len, r) do { \
254	PF_UNLOCK(); \
255	r = copyin((uaddr), (kaddr), (len)); \
256	PF_LOCK(); \
257	} while(0)
258
259	#define PF_COPYOUT(kaddr, uaddr, len, r) do { \
260	PF_UNLOCK(); \
261	r = copyout((kaddr), (uaddr), (len)); \
262	PF_LOCK(); \
263	} while(0)
264
265	#define PF_MODVER 1
266	#define PFLOG_MODVER 1
267	#define PFSYNC_MODVER 1
268
269	#define PFLOG_MINVER 1
270	#define PFLOG_PREFVER PFLOG_MODVER
271	#define PFLOG_MAXVER 1
272	#define PFSYNC_MINVER 1
273	#define PFSYNC_PREFVER PFSYNC_MODVER
274	#define PFSYNC_MAXVER 1
275	#endif /* __FreeBSD__ */
276	#ifdef INET
277	#ifndef INET6
278	#define PF_INET_ONLY
279	#endif /* ! INET6 */
280	#endif /* INET */
281
282	#ifdef INET6
283	#ifndef INET
284	#define PF_INET6_ONLY
285	#endif /* ! INET */
286	#endif /* INET6 */
287
288	#ifdef INET
289	#ifdef INET6
290	#define PF_INET_INET6
291	#endif /* INET6 */
292	#endif /* INET */
293
294	#else
295
296	#define PF_INET_INET6
297
298	#endif /* _KERNEL */
299
300	/* Both IPv4 and IPv6 */
301	#ifdef PF_INET_INET6
302
303	#define PF_AEQ(a, b, c) \
304	((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) \|\| \
305	((a)->addr32[3] == (b)->addr32[3] && \
306	(a)->addr32[2] == (b)->addr32[2] && \
307	(a)->addr32[1] == (b)->addr32[1] && \
308	(a)->addr32[0] == (b)->addr32[0])) \
309
310	#define PF_ANEQ(a, b, c) \
311	((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) \|\| \
312	((a)->addr32[3] != (b)->addr32[3] \|\| \
313	(a)->addr32[2] != (b)->addr32[2] \|\| \
314	(a)->addr32[1] != (b)->addr32[1] \|\| \
315	(a)->addr32[0] != (b)->addr32[0])) \
316
317	#define PF_AZERO(a, c) \
318	((c == AF_INET && !(a)->addr32[0]) \|\| \
319	(!(a)->addr32[0] && !(a)->addr32[1] && \
320	!(a)->addr32[2] && !(a)->addr32[3] )) \
321
322	#define PF_MATCHA(n, a, m, b, f) \
323	pf_match_addr(n, a, m, b, f)
324
325	#define PF_ACPY(a, b, f) \
326	pf_addrcpy(a, b, f)
327
328	#define PF_AINC(a, f) \
329	pf_addr_inc(a, f)
330
331	#define PF_POOLMASK(a, b, c, d, f) \
332	pf_poolmask(a, b, c, d, f)
333
334	#else
335
336	/* Just IPv6 */
337
338	#ifdef PF_INET6_ONLY
339
340	#define PF_AEQ(a, b, c) \
341	((a)->addr32[3] == (b)->addr32[3] && \
342	(a)->addr32[2] == (b)->addr32[2] && \
343	(a)->addr32[1] == (b)->addr32[1] && \
344	(a)->addr32[0] == (b)->addr32[0]) \
345
346	#define PF_ANEQ(a, b, c) \
347	((a)->addr32[3] != (b)->addr32[3] \|\| \
348	(a)->addr32[2] != (b)->addr32[2] \|\| \
349	(a)->addr32[1] != (b)->addr32[1] \|\| \
350	(a)->addr32[0] != (b)->addr32[0]) \
351
352	#define PF_AZERO(a, c) \
353	(!(a)->addr32[0] && \
354	!(a)->addr32[1] && \
355	!(a)->addr32[2] && \
356	!(a)->addr32[3] ) \
357
358	#define PF_MATCHA(n, a, m, b, f) \
359	pf_match_addr(n, a, m, b, f)
360
361	#define PF_ACPY(a, b, f) \
362	pf_addrcpy(a, b, f)
363
364	#define PF_AINC(a, f) \
365	pf_addr_inc(a, f)
366
367	#define PF_POOLMASK(a, b, c, d, f) \
368	pf_poolmask(a, b, c, d, f)
369
370	#else
371
372	/* Just IPv4 */
373	#ifdef PF_INET_ONLY
374
375	#define PF_AEQ(a, b, c) \
376	((a)->addr32[0] == (b)->addr32[0])
377
378	#define PF_ANEQ(a, b, c) \
379	((a)->addr32[0] != (b)->addr32[0])
380
381	#define PF_AZERO(a, c) \
382	(!(a)->addr32[0])
383
384	#define PF_MATCHA(n, a, m, b, f) \
385	pf_match_addr(n, a, m, b, f)
386
387	#define PF_ACPY(a, b, f) \
388	(a)->v4.s_addr = (b)->v4.s_addr
389
390	#define PF_AINC(a, f) \
391	do { \
392	(a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
393	} while (0)
394
395	#define PF_POOLMASK(a, b, c, d, f) \
396	do { \
397	(a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) \| \
398	(((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
399	} while (0)
400
401	#endif /* PF_INET_ONLY */
402	#endif /* PF_INET6_ONLY */
403	#endif /* PF_INET_INET6 */
404
405	/*
406	* XXX callers not FIB-aware in our version of pf yet.
407	* OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
408	*/
409	#define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
410	( \
411	(((aw)->type == PF_ADDR_NOROUTE && \
412	pf_routable((x), (af), NULL, (rtid))) \|\| \
413	(((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
414	pf_routable((x), (af), (ifp), (rtid))) \|\| \
415	((aw)->type == PF_ADDR_RTLABEL && \
416	!pf_rtlabel_match((x), (af), (aw), (rtid))) \|\| \
417	((aw)->type == PF_ADDR_TABLE && \
418	!pfr_match_addr((aw)->p.tbl, (x), (af))) \|\| \
419	((aw)->type == PF_ADDR_DYNIFTL && \
420	!pfi_match_addr((aw)->p.dyn, (x), (af))) \|\| \
421	((aw)->type == PF_ADDR_RANGE && \
422	!pf_match_addr_range(&(aw)->v.a.addr, \
423	&(aw)->v.a.mask, (x), (af))) \|\| \
424	((aw)->type == PF_ADDR_ADDRMASK && \
425	!PF_AZERO(&(aw)->v.a.mask, (af)) && \
426	!PF_MATCHA(0, &(aw)->v.a.addr, \
427	&(aw)->v.a.mask, (x), (af))))) != \
428	(neg) \
429	)
430
431
432	struct pf_rule_uid {
433	uid_t uid[2];
434	u_int8_t op;
435	};
436
437	struct pf_rule_gid {
438	uid_t gid[2];
439	u_int8_t op;
440	};
441
442	struct pf_rule_addr {
443	struct pf_addr_wrap addr;
444	u_int16_t port[2];
445	u_int8_t neg;
446	u_int8_t port_op;
447	};
448
449	struct pf_pooladdr {
450	struct pf_addr_wrap addr;
451	TAILQ_ENTRY(pf_pooladdr) entries;
452	char ifname[IFNAMSIZ];
453	struct pfi_kif *kif;
454	};
455
456	TAILQ_HEAD(pf_palist, pf_pooladdr);
457
458	struct pf_poolhashkey {
459	union {
460	u_int8_t key8[16];
461	u_int16_t key16[8];
462	u_int32_t key32[4];
463	} pfk; /* 128-bit hash key */
464	#define key8 pfk.key8
465	#define key16 pfk.key16
466	#define key32 pfk.key32
467	};
468
469	struct pf_pool {
470	struct pf_palist list;
471	struct pf_pooladdr *cur;
472	struct pf_poolhashkey key;
473	struct pf_addr counter;
474	int tblidx;
475	u_int16_t proxy_port[2];
476	u_int8_t port_op;
477	u_int8_t opts;
478	};
479
480
481	/* A packed Operating System description for fingerprinting */
482	typedef u_int32_t pf_osfp_t;
483	#define PF_OSFP_ANY ((pf_osfp_t)0)
484	#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
485	#define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
486
487	struct pf_osfp_entry {
488	SLIST_ENTRY(pf_osfp_entry) fp_entry;
489	pf_osfp_t fp_os;
490	int fp_enflags;
491	#define PF_OSFP_EXPANDED 0x001 /* expanded entry */
492	#define PF_OSFP_GENERIC 0x002 /* generic signature */
493	#define PF_OSFP_NODETAIL 0x004 /* no p0f details */
494	#define PF_OSFP_LEN 32
495	char fp_class_nm[PF_OSFP_LEN];
496	char fp_version_nm[PF_OSFP_LEN];
497	char fp_subtype_nm[PF_OSFP_LEN];
498	};
499	#define PF_OSFP_ENTRY_EQ(a, b) \
500	((a)->fp_os == (b)->fp_os && \
501	memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
502	memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
503	memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
504
505	/* handle pf_osfp_t packing */
506	#define _FP_RESERVED_BIT 1 /* For the special negative #defines */
507	#define _FP_UNUSED_BITS 1
508	#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
509	#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
510	#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
511	#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
512	(class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
513	((1 << _FP_CLASS_BITS) - 1); \
514	(version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
515	((1 << _FP_VERSION_BITS) - 1);\
516	(subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
517	} while(0)
518	#define PF_OSFP_PACK(osfp, class, version, subtype) do { \
519	(osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
520	+ _FP_SUBTYPE_BITS); \
521	(osfp) \|= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
522	_FP_SUBTYPE_BITS; \
523	(osfp) \|= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
524	} while(0)
525
526	/* the fingerprint of an OSes TCP SYN packet */
527	typedef u_int64_t pf_tcpopts_t;
528	struct pf_os_fingerprint {
529	SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
530	pf_tcpopts_t fp_tcpopts; /* packed TCP options */
531	u_int16_t fp_wsize; /* TCP window size */
532	u_int16_t fp_psize; /* ip->ip_len */
533	u_int16_t fp_mss; /* TCP MSS */
534	u_int16_t fp_flags;
535	#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
536	#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
537	#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
538	#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
539	#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
540	#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
541	#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
542	#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
543	#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
544	#define PF_OSFP_MSS 0x0200 /* TCP MSS */
545	#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
546	#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
547	#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
548	#define PF_OSFP_TS0 0x2000 /* Zero timestamp */
549	#define PF_OSFP_INET6 0x4000 /* IPv6 */
550	u_int8_t fp_optcnt; /* TCP option count */
551	u_int8_t fp_wscale; /* TCP window scaling */
552	u_int8_t fp_ttl; /* IPv4 TTL */
553	#define PF_OSFP_MAXTTL_OFFSET 40
554	/* TCP options packing */
555	#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
556	#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
557	#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
558	#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
559	#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
560	#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
561	#define PF_OSFP_MAX_OPTS \
562	(sizeof(((struct pf_os_fingerprint )0)->fp_tcpopts) 8) \
563	/ PF_OSFP_TCPOPT_BITS
564
565	SLIST_ENTRY(pf_os_fingerprint) fp_next;
566	};
567
568	struct pf_osfp_ioctl {
569	struct pf_osfp_entry fp_os;
570	pf_tcpopts_t fp_tcpopts; /* packed TCP options */
571	u_int16_t fp_wsize; /* TCP window size */
572	u_int16_t fp_psize; /* ip->ip_len */
573	u_int16_t fp_mss; /* TCP MSS */
574	u_int16_t fp_flags;
575	u_int8_t fp_optcnt; /* TCP option count */
576	u_int8_t fp_wscale; /* TCP window scaling */
577	u_int8_t fp_ttl; /* IPv4 TTL */
578
579	int fp_getnum; /* DIOCOSFPGET number */
580	};
581
582
583	union pf_rule_ptr {
584	struct pf_rule *ptr;
585	u_int32_t nr;
586	};
587
588	#define PF_ANCHOR_NAME_SIZE 64
589
590	struct pf_rule {
591	struct pf_rule_addr src;
592	struct pf_rule_addr dst;
593	#define PF_SKIP_IFP 0
594	#define PF_SKIP_DIR 1
595	#define PF_SKIP_AF 2
596	#define PF_SKIP_PROTO 3
597	#define PF_SKIP_SRC_ADDR 4
598	#define PF_SKIP_SRC_PORT 5
599	#define PF_SKIP_DST_ADDR 6
600	#define PF_SKIP_DST_PORT 7
601	#define PF_SKIP_COUNT 8
602	union pf_rule_ptr skip[PF_SKIP_COUNT];
603	#define PF_RULE_LABEL_SIZE 64
604	char label[PF_RULE_LABEL_SIZE];
605	#define PF_QNAME_SIZE 64
606	char ifname[IFNAMSIZ];
607	char qname[PF_QNAME_SIZE];
608	char pqname[PF_QNAME_SIZE];
609	#define PF_TAG_NAME_SIZE 64
610	char tagname[PF_TAG_NAME_SIZE];
611	char match_tagname[PF_TAG_NAME_SIZE];
612
613	char overload_tblname[PF_TABLE_NAME_SIZE];
614
615	TAILQ_ENTRY(pf_rule) entries;
616	struct pf_pool rpool;
617
618	u_int64_t evaluations;
619	u_int64_t packets[2];
620	u_int64_t bytes[2];
621
622	struct pfi_kif *kif;
623	struct pf_anchor *anchor;
624	struct pfr_ktable *overload_tbl;
625
626	pf_osfp_t os_fingerprint;
627
628	int rtableid;
629	u_int32_t timeout[PFTM_MAX];
630	u_int32_t states_cur;
631	u_int32_t states_tot;
632	u_int32_t max_states;
633	u_int32_t src_nodes;
634	u_int32_t max_src_nodes;
635	u_int32_t max_src_states;
636	u_int32_t spare1; /* netgraph */
637	u_int32_t max_src_conn;
638	struct {
639	u_int32_t limit;
640	u_int32_t seconds;
641	} max_src_conn_rate;
642	u_int32_t qid;
643	u_int32_t pqid;
644	u_int32_t rt_listid;
645	u_int32_t nr;
646	u_int32_t prob;
647	uid_t cuid;
648	pid_t cpid;
649
650	u_int16_t return_icmp;
651	u_int16_t return_icmp6;
652	u_int16_t max_mss;
653	u_int16_t tag;
654	u_int16_t match_tag;
655	u_int16_t spare2; /* netgraph */
656
657	struct pf_rule_uid uid;
658	struct pf_rule_gid gid;
659
660	u_int32_t rule_flag;
661	u_int8_t action;
662	u_int8_t direction;
663	u_int8_t log;
664	u_int8_t logif;
665	u_int8_t quick;
666	u_int8_t ifnot;
667	u_int8_t match_tag_not;
668	u_int8_t natpass;
669
670	#define PF_STATE_NORMAL 0x1
671	#define PF_STATE_MODULATE 0x2
672	#define PF_STATE_SYNPROXY 0x3
673	u_int8_t keep_state;
674	sa_family_t af;
675	u_int8_t proto;
676	u_int8_t type;
677	u_int8_t code;
678	u_int8_t flags;
679	u_int8_t flagset;
680	u_int8_t min_ttl;
681	u_int8_t allow_opts;
682	u_int8_t rt;
683	u_int8_t return_ttl;
684	u_int8_t tos;
685	u_int8_t set_tos;
686	u_int8_t anchor_relative;
687	u_int8_t anchor_wildcard;
688
689	#define PF_FLUSH 0x01
690	#define PF_FLUSH_GLOBAL 0x02
691	u_int8_t flush;
692
693	struct {
694	struct pf_addr addr;
695	u_int16_t port;
696	} divert;
697	};
698
699	/* rule flags */
700	#define PFRULE_DROP 0x0000
701	#define PFRULE_RETURNRST 0x0001
702	#define PFRULE_FRAGMENT 0x0002
703	#define PFRULE_RETURNICMP 0x0004
704	#define PFRULE_RETURN 0x0008
705	#define PFRULE_NOSYNC 0x0010
706	#define PFRULE_SRCTRACK 0x0020 /* track source states */
707	#define PFRULE_RULESRCTRACK 0x0040 /* per rule */
708
709	/* scrub flags */
710	#define PFRULE_NODF 0x0100
711	#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
712	#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
713	#define PFRULE_RANDOMID 0x0800
714	#define PFRULE_REASSEMBLE_TCP 0x1000
715	#define PFRULE_SET_TOS 0x2000
716
717	/* rule flags again */
718	#define PFRULE_IFBOUND 0x00010000 /* if-bound */
719	#define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
720	#define PFRULE_PFLOW 0x00040000
721
722	#define PFSTATE_HIWAT 10000 /* default state table size */
723	#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
724	#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
725
726
727	struct pf_threshold {
728	u_int32_t limit;
729	#define PF_THRESHOLD_MULT 1000
730	#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
731	u_int32_t seconds;
732	u_int32_t count;
733	u_int32_t last;
734	};
735
736	struct pf_src_node {
737	RB_ENTRY(pf_src_node) entry;
738	struct pf_addr addr;
739	struct pf_addr raddr;
740	union pf_rule_ptr rule;
741	struct pfi_kif *kif;
742	u_int64_t bytes[2];
743	u_int64_t packets[2];
744	u_int32_t states;
745	u_int32_t conn;
746	struct pf_threshold conn_rate;
747	u_int32_t creation;
748	u_int32_t expire;
749	sa_family_t af;
750	u_int8_t ruletype;
751	};
752
753	#define PFSNODE_HIWAT 10000 /* default source node table size */
754
755	struct pf_state_scrub {
756	struct timeval pfss_last; /* time received last packet */
757	u_int32_t pfss_tsecr; /* last echoed timestamp */
758	u_int32_t pfss_tsval; /* largest timestamp */
759	u_int32_t pfss_tsval0; /* original timestamp */
760	u_int16_t pfss_flags;
761	#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
762	#define PFSS_PAWS 0x0010 /* stricter PAWS checks */
763	#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
764	#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
765	#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
766	u_int8_t pfss_ttl; /* stashed TTL */
767	u_int8_t pad;
768	u_int32_t pfss_ts_mod; /* timestamp modulation */
769	};
770
771	struct pf_state_host {
772	struct pf_addr addr;
773	u_int16_t port;
774	u_int16_t pad;
775	};
776
777	struct pf_state_peer {
778	struct pf_state_scrub scrub; / state is scrubbed */
779	u_int32_t seqlo; /* Max sequence number sent */
780	u_int32_t seqhi; /* Max the other end ACKd + win */
781	u_int32_t seqdiff; /* Sequence number modulator */
782	u_int16_t max_win; /* largest window (pre scaling) */
783	u_int16_t mss; /* Maximum segment size option */
784	u_int8_t state; /* active state level */
785	u_int8_t wscale; /* window scaling factor */
786	u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
787	u_int8_t pad[1];
788	};
789
790	TAILQ_HEAD(pf_state_queue, pf_state);
791
792	/* keep synced with struct pf_state_key, used in RB_FIND */
793	struct pf_state_key_cmp {
794	struct pf_addr addr[2];
795	u_int16_t port[2];
796	sa_family_t af;
797	u_int8_t proto;
798	u_int8_t pad[2];
799	};
800
801	struct pf_state_item {
802	TAILQ_ENTRY(pf_state_item) entry;
803	struct pf_state *s;
804	};
805
806	TAILQ_HEAD(pf_statelisthead, pf_state_item);
807
808	struct pf_state_key {
809	struct pf_addr addr[2];
810	u_int16_t port[2];
811	sa_family_t af;
812	u_int8_t proto;
813	u_int8_t pad[2];
814
815	RB_ENTRY(pf_state_key) entry;
816	struct pf_statelisthead states;
817	struct pf_state_key *reverse;
818	struct inpcb *inp;
819	};
820
821	/* keep synced with struct pf_state, used in RB_FIND */
822	struct pf_state_cmp {
823	u_int64_t id;
824	u_int32_t creatorid;
825	u_int8_t direction;
826	u_int8_t pad[3];
827	};
828
829	struct pf_state {
830	u_int64_t id;
831	u_int32_t creatorid;
832	u_int8_t direction;
833	#ifdef __FreeBSD__
834	u_int8_t pad[2];
835	u_int8_t local_flags;
836	#define PFSTATE_EXPIRING 0x01
837	#else
838	u_int8_t pad[3];
839	#endif
840
841	TAILQ_ENTRY(pf_state) sync_list;
842	TAILQ_ENTRY(pf_state) entry_list;
843	RB_ENTRY(pf_state) entry_id;
844	struct pf_state_peer src;
845	struct pf_state_peer dst;
846	union pf_rule_ptr rule;
847	union pf_rule_ptr anchor;
848	union pf_rule_ptr nat_rule;
849	struct pf_addr rt_addr;
850	struct pf_state_key key[2]; / addresses stack and wire */
851	struct pfi_kif *kif;
852	struct pfi_kif *rt_kif;
853	struct pf_src_node *src_node;
854	struct pf_src_node *nat_src_node;
855	u_int64_t packets[2];
856	u_int64_t bytes[2];
857	u_int32_t creation;
858	u_int32_t expire;
859	u_int32_t pfsync_time;
860	u_int16_t tag;
861	u_int8_t log;
862	u_int8_t state_flags;
863	#define PFSTATE_ALLOWOPTS 0x01
864	#define PFSTATE_SLOPPY 0x02
865	#define PFSTATE_PFLOW 0x04
866	#define PFSTATE_NOSYNC 0x08
867	#define PFSTATE_ACK 0x10
868	u_int8_t timeout;
869	u_int8_t sync_state; /* PFSYNC_S_x */
870
871	/* XXX */
872	u_int8_t sync_updates;
873	u_int8_t _tail[3];
874	};
875
876	/*
877	* Unified state structures for pulling states out of the kernel
878	* used by pfsync(4) and the pf(4) ioctl.
879	*/
880	struct pfsync_state_scrub {
881	u_int16_t pfss_flags;
882	u_int8_t pfss_ttl; /* stashed TTL */
883	#define PFSYNC_SCRUB_FLAG_VALID 0x01
884	u_int8_t scrub_flag;
885	u_int32_t pfss_ts_mod; /* timestamp modulation */
886	} __packed;
887
888	struct pfsync_state_peer {
889	struct pfsync_state_scrub scrub; /* state is scrubbed */
890	u_int32_t seqlo; /* Max sequence number sent */
891	u_int32_t seqhi; /* Max the other end ACKd + win */
892	u_int32_t seqdiff; /* Sequence number modulator */
893	u_int16_t max_win; /* largest window (pre scaling) */
894	u_int16_t mss; /* Maximum segment size option */
895	u_int8_t state; /* active state level */
896	u_int8_t wscale; /* window scaling factor */
897	u_int8_t pad[6];
898	} __packed;
899
900	struct pfsync_state_key {
901	struct pf_addr addr[2];
902	u_int16_t port[2];
903	};
904
905	struct pfsync_state {
906	u_int32_t id[2];
907	char ifname[IFNAMSIZ];
908	struct pfsync_state_key key[2];
909	struct pfsync_state_peer src;
910	struct pfsync_state_peer dst;
911	struct pf_addr rt_addr;
912	u_int32_t rule;
913	u_int32_t anchor;
914	u_int32_t nat_rule;
915	u_int32_t creation;
916	u_int32_t expire;
917	u_int32_t packets[2][2];
918	u_int32_t bytes[2][2];
919	u_int32_t creatorid;
920	sa_family_t af;
921	u_int8_t proto;
922	u_int8_t direction;
923	#ifdef __FreeBSD__
924	u_int8_t local_flags;
925	#define PFSTATE_EXPIRING 0x01
926	u_int8_t pad;
927	#endif
928	u_int8_t log;
929	u_int8_t state_flags;
930	u_int8_t timeout;
931	u_int8_t sync_flags;
932	u_int8_t updates;
933	} __packed;
934
935	#ifdef __FreeBSD__
936	#ifdef _KERNEL
937	/* pfsync */
938	typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
939	typedef void pfsync_insert_state_t(struct pf_state *);
940	typedef void pfsync_update_state_t(struct pf_state *);
941	typedef void pfsync_delete_state_t(struct pf_state *);
942	typedef void pfsync_clear_states_t(u_int32_t, const char *);
943	typedef int pfsync_state_in_use_t(struct pf_state *);
944	typedef int pfsync_defer_t(struct pf_state , struct mbuf );
945	typedef int pfsync_up_t(void);
946
947	extern pfsync_state_import_t *pfsync_state_import_ptr;
948	extern pfsync_insert_state_t *pfsync_insert_state_ptr;
949	extern pfsync_update_state_t *pfsync_update_state_ptr;
950	extern pfsync_delete_state_t *pfsync_delete_state_ptr;
951	extern pfsync_clear_states_t *pfsync_clear_states_ptr;
952	extern pfsync_state_in_use_t *pfsync_state_in_use_ptr;
953	extern pfsync_defer_t *pfsync_defer_ptr;
954	extern pfsync_up_t *pfsync_up_ptr;
955
956	void pfsync_state_export(struct pfsync_state *,
957	struct pf_state *);
958
959	/* pflow */
960	typedef int export_pflow_t(struct pf_state *);
961
962	extern export_pflow_t *export_pflow_ptr;
963
964	/* pflog */
965	struct pf_ruleset;
966	struct pf_pdesc;
967	typedef int pflog_packet_t(struct pfi_kif , struct mbuf , sa_family_t,
968	u_int8_t, u_int8_t, struct pf_rule , struct pf_rule ,
969	struct pf_ruleset , struct pf_pdesc );
970
971	extern pflog_packet_t *pflog_packet_ptr;
972
973	/* pf uid hack */
974	VNET_DECLARE(int, debug_pfugidhack);
975	#define V_debug_pfugidhack VNET(debug_pfugidhack)
976
977	#define V_pf_end_threads VNET(pf_end_threads)
978	#endif
979
980	/* Macros to set/clear/test flags. */
981	#ifdef _KERNEL
982	#define SET(t, f) ((t) \|= (f))
983	#define CLR(t, f) ((t) &= ~(f))
984	#define ISSET(t, f) ((t) & (f))
985	#endif
986	#endif
987
988	#define PFSYNC_FLAG_SRCNODE 0x04
989	#define PFSYNC_FLAG_NATSRCNODE 0x08
990
991	/* for copies to/from network byte order */
992	/* ioctl interface also uses network byte order */
993	#define pf_state_peer_hton(s,d) do { \
994	(d)->seqlo = htonl((s)->seqlo); \
995	(d)->seqhi = htonl((s)->seqhi); \
996	(d)->seqdiff = htonl((s)->seqdiff); \
997	(d)->max_win = htons((s)->max_win); \
998	(d)->mss = htons((s)->mss); \
999	(d)->state = (s)->state; \
1000	(d)->wscale = (s)->wscale; \
1001	if ((s)->scrub) { \
1002	(d)->scrub.pfss_flags = \
1003	htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
1004	(d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
1005	(d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
1006	(d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
1007	} \
1008	} while (0)
1009
1010	#define pf_state_peer_ntoh(s,d) do { \
1011	(d)->seqlo = ntohl((s)->seqlo); \
1012	(d)->seqhi = ntohl((s)->seqhi); \
1013	(d)->seqdiff = ntohl((s)->seqdiff); \
1014	(d)->max_win = ntohs((s)->max_win); \
1015	(d)->mss = ntohs((s)->mss); \
1016	(d)->state = (s)->state; \
1017	(d)->wscale = (s)->wscale; \
1018	if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1019	(d)->scrub != NULL) { \
1020	(d)->scrub->pfss_flags = \
1021	ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1022	(d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1023	(d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
1024	} \
1025	} while (0)
1026
1027	#define pf_state_counter_hton(s,d) do { \
1028	d[0] = htonl((s>>32)&0xffffffff); \
1029	d[1] = htonl(s&0xffffffff); \
1030	} while (0)
1031
1032	#define pf_state_counter_from_pfsync(s) \
1033	(((u_int64_t)(s[0])<<32) \| (u_int64_t)(s[1]))
1034
1035	#define pf_state_counter_ntoh(s,d) do { \
1036	d = ntohl(s[0]); \
1037	d = d<<32; \
1038	d += ntohl(s[1]); \
1039	} while (0)
1040
1041	TAILQ_HEAD(pf_rulequeue, pf_rule);
1042
1043	struct pf_anchor;
1044
1045	struct pf_ruleset {
1046	struct {
1047	struct pf_rulequeue queues[2];
1048	struct {
1049	struct pf_rulequeue *ptr;
1050	struct pf_rule **ptr_array;
1051	u_int32_t rcount;
1052	u_int32_t ticket;
1053	int open;
1054	} active, inactive;
1055	} rules[PF_RULESET_MAX];
1056	struct pf_anchor *anchor;
1057	u_int32_t tticket;
1058	int tables;
1059	int topen;
1060	};
1061
1062	RB_HEAD(pf_anchor_global, pf_anchor);
1063	RB_HEAD(pf_anchor_node, pf_anchor);
1064	struct pf_anchor {
1065	RB_ENTRY(pf_anchor) entry_global;
1066	RB_ENTRY(pf_anchor) entry_node;
1067	struct pf_anchor *parent;
1068	struct pf_anchor_node children;
1069	char name[PF_ANCHOR_NAME_SIZE];
1070	char path[MAXPATHLEN];
1071	struct pf_ruleset ruleset;
1072	int refcnt; /* anchor rules */
1073	int match;
1074	};
1075	RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
1076	RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
1077
1078	#define PF_RESERVED_ANCHOR "_pf"
1079
1080	#define PFR_TFLAG_PERSIST 0x00000001
1081	#define PFR_TFLAG_CONST 0x00000002
1082	#define PFR_TFLAG_ACTIVE 0x00000004
1083	#define PFR_TFLAG_INACTIVE 0x00000008
1084	#define PFR_TFLAG_REFERENCED 0x00000010
1085	#define PFR_TFLAG_REFDANCHOR 0x00000020
1086	#define PFR_TFLAG_COUNTERS 0x00000040
1087	/* Adjust masks below when adding flags. */
1088	#define PFR_TFLAG_USRMASK 0x00000043
1089	#define PFR_TFLAG_SETMASK 0x0000003C
1090	#define PFR_TFLAG_ALLMASK 0x0000007F
1091
1092	struct pfr_table {
1093	char pfrt_anchor[MAXPATHLEN];
1094	char pfrt_name[PF_TABLE_NAME_SIZE];
1095	u_int32_t pfrt_flags;
1096	u_int8_t pfrt_fback;
1097	};
1098
1099	enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1100	PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1101	PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1102
1103	struct pfr_addr {
1104	union {
1105	struct in_addr _pfra_ip4addr;
1106	struct in6_addr _pfra_ip6addr;
1107	} pfra_u;
1108	u_int8_t pfra_af;
1109	u_int8_t pfra_net;
1110	u_int8_t pfra_not;
1111	u_int8_t pfra_fback;
1112	};
1113	#define pfra_ip4addr pfra_u._pfra_ip4addr
1114	#define pfra_ip6addr pfra_u._pfra_ip6addr
1115
1116	enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1117	enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1118	#define PFR_OP_XPASS PFR_OP_ADDR_MAX
1119
1120	struct pfr_astats {
1121	struct pfr_addr pfras_a;
1122	u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1123	u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1124	long pfras_tzero;
1125	};
1126
1127	enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1128
1129	struct pfr_tstats {
1130	struct pfr_table pfrts_t;
1131	u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1132	u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1133	u_int64_t pfrts_match;
1134	u_int64_t pfrts_nomatch;
1135	long pfrts_tzero;
1136	int pfrts_cnt;
1137	int pfrts_refcnt[PFR_REFCNT_MAX];
1138	};
1139	#define pfrts_name pfrts_t.pfrt_name
1140	#define pfrts_flags pfrts_t.pfrt_flags
1141
1142	#ifndef _SOCKADDR_UNION_DEFINED
1143	#define _SOCKADDR_UNION_DEFINED
1144	union sockaddr_union {
1145	struct sockaddr sa;
1146	struct sockaddr_in sin;
1147	struct sockaddr_in6 sin6;
1148	};
1149	#endif /* _SOCKADDR_UNION_DEFINED */
1150
1151	struct pfr_kcounters {
1152	u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1153	u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1154	};
1155
1156	SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1157	struct pfr_kentry {
1158	struct radix_node pfrke_node[2];
1159	union sockaddr_union pfrke_sa;
1160	SLIST_ENTRY(pfr_kentry) pfrke_workq;
1161	union {
1162
1163	struct pfr_kcounters *pfrke_counters;
1164	#if 0
1165	struct pfr_kroute *pfrke_route;
1166	#endif
1167	} u;
1168	long pfrke_tzero;
1169	u_int8_t pfrke_af;
1170	u_int8_t pfrke_net;
1171	u_int8_t pfrke_not;
1172	u_int8_t pfrke_mark;
1173	};
1174	#define pfrke_counters u.pfrke_counters
1175	#define pfrke_route u.pfrke_route
1176
1177
1178	SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1179	RB_HEAD(pfr_ktablehead, pfr_ktable);
1180	struct pfr_ktable {
1181	struct pfr_tstats pfrkt_ts;
1182	RB_ENTRY(pfr_ktable) pfrkt_tree;
1183	SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1184	struct radix_node_head *pfrkt_ip4;
1185	struct radix_node_head *pfrkt_ip6;
1186	struct pfr_ktable *pfrkt_shadow;
1187	struct pfr_ktable *pfrkt_root;
1188	struct pf_ruleset *pfrkt_rs;
1189	long pfrkt_larg;
1190	int pfrkt_nflags;
1191	};
1192	#define pfrkt_t pfrkt_ts.pfrts_t
1193	#define pfrkt_name pfrkt_t.pfrt_name
1194	#define pfrkt_anchor pfrkt_t.pfrt_anchor
1195	#define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1196	#define pfrkt_flags pfrkt_t.pfrt_flags
1197	#define pfrkt_cnt pfrkt_ts.pfrts_cnt
1198	#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1199	#define pfrkt_packets pfrkt_ts.pfrts_packets
1200	#define pfrkt_bytes pfrkt_ts.pfrts_bytes
1201	#define pfrkt_match pfrkt_ts.pfrts_match
1202	#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1203	#define pfrkt_tzero pfrkt_ts.pfrts_tzero
1204
1205	RB_HEAD(pf_state_tree, pf_state_key);
1206	RB_PROTOTYPE(pf_state_tree, pf_state_key, entry, pf_state_compare_key);
1207
1208	RB_HEAD(pf_state_tree_ext_gwy, pf_state_key);
1209	RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state_key,
1210	entry_ext_gwy, pf_state_compare_ext_gwy);
1211
1212	RB_HEAD(pfi_ifhead, pfi_kif);
1213
1214	/* state tables */
1215	#ifdef __FreeBSD__
1216	#ifdef _KERNEL
1217	VNET_DECLARE(struct pf_state_tree, pf_statetbl);
1218	#define V_pf_statetbl VNET(pf_statetbl)
1219	#endif
1220	#else
1221	extern struct pf_state_tree pf_statetbl;
1222	#endif
1223
1224	/* keep synced with pfi_kif, used in RB_FIND */
1225	struct pfi_kif_cmp {
1226	char pfik_name[IFNAMSIZ];
1227	};
1228
1229	struct pfi_kif {
1230	char pfik_name[IFNAMSIZ];
1231	RB_ENTRY(pfi_kif) pfik_tree;
1232	u_int64_t pfik_packets[2][2][2];
1233	u_int64_t pfik_bytes[2][2][2];
1234	u_int32_t pfik_tzero;
1235	int pfik_flags;
1236	void *pfik_ah_cookie;
1237	struct ifnet *pfik_ifp;
1238	struct ifg_group *pfik_group;
1239	int pfik_states;
1240	int pfik_rules;
1241	TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1242	};
1243
1244	enum pfi_kif_refs {
1245	PFI_KIF_REF_NONE,
1246	PFI_KIF_REF_STATE,
1247	PFI_KIF_REF_RULE
1248	};
1249
1250	#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1251
1252	struct pf_pdesc {
1253	struct {
1254	int done;
1255	uid_t uid;
1256	gid_t gid;
1257	pid_t pid;
1258	} lookup;
1259	u_int64_t tot_len; /* Make Mickey money */
1260	union {
1261	struct tcphdr *tcp;
1262	struct udphdr *udp;
1263	struct icmp *icmp;
1264	#ifdef INET6
1265	struct icmp6_hdr *icmp6;
1266	#endif /* INET6 */
1267	void *any;
1268	} hdr;
1269
1270	struct pf_rule nat_rule; / nat/rdr rule applied to packet */
1271	struct ether_header
1272	*eh;
1273	struct pf_addr src; / src address */
1274	struct pf_addr dst; / dst address */
1275	u_int16_t *sport;
1276	u_int16_t *dport;
1277	#ifdef __FreeBSD__
1278	struct pf_mtag *pf_mtag;
1279	#endif
1280
1281	u_int32_t p_len; /* total length of payload */
1282
1283	u_int16_t *ip_sum;
1284	u_int16_t *proto_sum;
1285	u_int16_t flags; /* Let SCRUB trigger behavior in
1286	* state code. Easier than tags */
1287	#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1288	#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1289	sa_family_t af;
1290	u_int8_t proto;
1291	u_int8_t tos;
1292	u_int8_t dir; /* direction */
1293	u_int8_t sidx; /* key index for source */
1294	u_int8_t didx; /* key index for destination */
1295	};
1296
1297	/* flags for RDR options */
1298	#define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1299	#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1300
1301	/* Reasons code for passing/dropping a packet */
1302	#define PFRES_MATCH 0 /* Explicit match of a rule */
1303	#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1304	#define PFRES_FRAG 2 /* Dropping following fragment */
1305	#define PFRES_SHORT 3 /* Dropping short packet */
1306	#define PFRES_NORM 4 /* Dropping by normalizer */
1307	#define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1308	#define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1309	#define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1310	#define PFRES_IPOPTIONS 8 /* IP option */
1311	#define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1312	#define PFRES_BADSTATE 10 /* State mismatch */
1313	#define PFRES_STATEINS 11 /* State insertion failure */
1314	#define PFRES_MAXSTATES 12 /* State limit */
1315	#define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1316	#define PFRES_SYNPROXY 14 /* SYN proxy */
1317	#define PFRES_MAX 15 /* total+1 */
1318
1319	#define PFRES_NAMES { \
1320	"match", \
1321	"bad-offset", \
1322	"fragment", \
1323	"short", \
1324	"normalize", \
1325	"memory", \
1326	"bad-timestamp", \
1327	"congestion", \
1328	"ip-option", \
1329	"proto-cksum", \
1330	"state-mismatch", \
1331	"state-insert", \
1332	"state-limit", \
1333	"src-limit", \
1334	"synproxy", \
1335	NULL \
1336	}
1337
1338	/* Counters for other things we want to keep track of */
1339	#define LCNT_STATES 0 /* states */
1340	#define LCNT_SRCSTATES 1 /* max-src-states */
1341	#define LCNT_SRCNODES 2 /* max-src-nodes */
1342	#define LCNT_SRCCONN 3 /* max-src-conn */
1343	#define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1344	#define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1345	#define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1346	#define LCNT_MAX 7 /* total+1 */
1347
1348	#define LCNT_NAMES { \
1349	"max states per rule", \
1350	"max-src-states", \
1351	"max-src-nodes", \
1352	"max-src-conn", \
1353	"max-src-conn-rate", \
1354	"overload table insertion", \
1355	"overload flush states", \
1356	NULL \
1357	}
1358
1359	/* UDP state enumeration */
1360	#define PFUDPS_NO_TRAFFIC 0
1361	#define PFUDPS_SINGLE 1
1362	#define PFUDPS_MULTIPLE 2
1363
1364	#define PFUDPS_NSTATES 3 /* number of state levels */
1365
1366	#define PFUDPS_NAMES { \
1367	"NO_TRAFFIC", \
1368	"SINGLE", \
1369	"MULTIPLE", \
1370	NULL \
1371	}
1372
1373	/* Other protocol state enumeration */
1374	#define PFOTHERS_NO_TRAFFIC 0
1375	#define PFOTHERS_SINGLE 1
1376	#define PFOTHERS_MULTIPLE 2
1377
1378	#define PFOTHERS_NSTATES 3 /* number of state levels */
1379
1380	#define PFOTHERS_NAMES { \
1381	"NO_TRAFFIC", \
1382	"SINGLE", \
1383	"MULTIPLE", \
1384	NULL \
1385	}
1386
1387	#define FCNT_STATE_SEARCH 0
1388	#define FCNT_STATE_INSERT 1
1389	#define FCNT_STATE_REMOVALS 2
1390	#define FCNT_MAX 3
1391
1392	#define SCNT_SRC_NODE_SEARCH 0
1393	#define SCNT_SRC_NODE_INSERT 1
1394	#define SCNT_SRC_NODE_REMOVALS 2
1395	#define SCNT_MAX 3
1396
1397	#define ACTION_SET(a, x) \
1398	do { \
1399	if ((a) != NULL) \
1400	*(a) = (x); \
1401	} while (0)
1402
1403	#ifdef __FreeBSD__
1404	#define REASON_SET(a, x) \
1405	do { \
1406	if ((a) != NULL) \
1407	*(a) = (x); \
1408	if (x < PFRES_MAX) \
1409	V_pf_status.counters[x]++; \
1410	} while (0)
1411	#else
1412	#define REASON_SET(a, x) \
1413	do { \
1414	if ((a) != NULL) \
1415	*(a) = (x); \
1416	if (x < PFRES_MAX) \
1417	pf_status.counters[x]++; \
1418	} while (0)
1419	#endif
1420
1421	struct pf_status {
1422	u_int64_t counters[PFRES_MAX];
1423	u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1424	u_int64_t fcounters[FCNT_MAX];
1425	u_int64_t scounters[SCNT_MAX];
1426	u_int64_t pcounters[2][2][3];
1427	u_int64_t bcounters[2][2];
1428	u_int64_t stateid;
1429	u_int32_t running;
1430	u_int32_t states;
1431	u_int32_t src_nodes;
1432	u_int32_t since;
1433	u_int32_t debug;
1434	u_int32_t hostid;
1435	char ifname[IFNAMSIZ];
1436	u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1437	};
1438
1439	struct cbq_opts {
1440	u_int minburst;
1441	u_int maxburst;
1442	u_int pktsize;
1443	u_int maxpktsize;
1444	u_int ns_per_byte;
1445	u_int maxidle;
1446	int minidle;
1447	u_int offtime;
1448	int flags;
1449	};
1450
1451	struct priq_opts {
1452	int flags;
1453	};
1454
1455	struct hfsc_opts {
1456	/* real-time service curve */
1457	u_int rtsc_m1; /* slope of the 1st segment in bps */
1458	u_int rtsc_d; /* the x-projection of m1 in msec */
1459	u_int rtsc_m2; /* slope of the 2nd segment in bps */
1460	/* link-sharing service curve */
1461	u_int lssc_m1;
1462	u_int lssc_d;
1463	u_int lssc_m2;
1464	/* upper-limit service curve */
1465	u_int ulsc_m1;
1466	u_int ulsc_d;
1467	u_int ulsc_m2;
1468	int flags;
1469	};
1470
1471	struct pf_altq {
1472	char ifname[IFNAMSIZ];
1473
1474	void altq_disc; / discipline-specific state */
1475	TAILQ_ENTRY(pf_altq) entries;
1476
1477	/* scheduler spec */
1478	u_int8_t scheduler; /* scheduler type */
1479	u_int16_t tbrsize; /* tokenbucket regulator size */
1480	u_int32_t ifbandwidth; /* interface bandwidth */
1481
1482	/* queue spec */
1483	char qname[PF_QNAME_SIZE]; /* queue name */
1484	char parent[PF_QNAME_SIZE]; /* parent name */
1485	u_int32_t parent_qid; /* parent queue id */
1486	u_int32_t bandwidth; /* queue bandwidth */
1487	u_int8_t priority; /* priority */
1488	#ifdef __FreeBSD__
1489	u_int8_t local_flags; /* dynamic interface */
1490	#define PFALTQ_FLAG_IF_REMOVED 0x01
1491	#endif
1492	u_int16_t qlimit; /* queue size limit */
1493	u_int16_t flags; /* misc flags */
1494	union {
1495	struct cbq_opts cbq_opts;
1496	struct priq_opts priq_opts;
1497	struct hfsc_opts hfsc_opts;
1498	} pq_u;
1499
1500	u_int32_t qid; /* return value */
1501	};
1502
1503	struct pf_tagname {
1504	TAILQ_ENTRY(pf_tagname) entries;
1505	char name[PF_TAG_NAME_SIZE];
1506	u_int16_t tag;
1507	int ref;
1508	};
1509
1510	struct pf_divert {
1511	union {
1512	struct in_addr ipv4;
1513	struct in6_addr ipv6;
1514	} addr;
1515	u_int16_t port;
1516	};
1517
1518	#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1519	#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1520	#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1521	#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1522
1523	#define PFR_KTABLE_HIWAT 1000 /* Number of tables */
1524	#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1525	#define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
1526
1527	/*
1528	* ioctl parameter structures
1529	*/
1530
1531	struct pfioc_pooladdr {
1532	u_int32_t action;
1533	u_int32_t ticket;
1534	u_int32_t nr;
1535	u_int32_t r_num;
1536	u_int8_t r_action;
1537	u_int8_t r_last;
1538	u_int8_t af;
1539	char anchor[MAXPATHLEN];
1540	struct pf_pooladdr addr;
1541	};
1542
1543	struct pfioc_rule {
1544	u_int32_t action;
1545	u_int32_t ticket;
1546	u_int32_t pool_ticket;
1547	u_int32_t nr;
1548	char anchor[MAXPATHLEN];
1549	char anchor_call[MAXPATHLEN];
1550	struct pf_rule rule;
1551	};
1552
1553	struct pfioc_natlook {
1554	struct pf_addr saddr;
1555	struct pf_addr daddr;
1556	struct pf_addr rsaddr;
1557	struct pf_addr rdaddr;
1558	u_int16_t sport;
1559	u_int16_t dport;
1560	u_int16_t rsport;
1561	u_int16_t rdport;
1562	sa_family_t af;
1563	u_int8_t proto;
1564	u_int8_t direction;
1565	};
1566
1567	struct pfioc_state {
1568	struct pfsync_state state;
1569	};
1570
1571	struct pfioc_src_node_kill {
1572	sa_family_t psnk_af;
1573	struct pf_rule_addr psnk_src;
1574	struct pf_rule_addr psnk_dst;
1575	u_int psnk_killed;
1576	};
1577
1578	struct pfioc_state_kill {
1579	struct pf_state_cmp psk_pfcmp;
1580	sa_family_t psk_af;
1581	int psk_proto;
1582	struct pf_rule_addr psk_src;
1583	struct pf_rule_addr psk_dst;
1584	char psk_ifname[IFNAMSIZ];
1585	char psk_label[PF_RULE_LABEL_SIZE];
1586	u_int psk_killed;
1587	};
1588
1589	struct pfioc_states {
1590	int ps_len;
1591	union {
1592	caddr_t psu_buf;
1593	struct pfsync_state *psu_states;
1594	} ps_u;
1595	#define ps_buf ps_u.psu_buf
1596	#define ps_states ps_u.psu_states
1597	};
1598
1599	struct pfioc_src_nodes {
1600	int psn_len;
1601	union {
1602	caddr_t psu_buf;
1603	struct pf_src_node *psu_src_nodes;
1604	} psn_u;
1605	#define psn_buf psn_u.psu_buf
1606	#define psn_src_nodes psn_u.psu_src_nodes
1607	};
1608
1609	struct pfioc_if {
1610	char ifname[IFNAMSIZ];
1611	};
1612
1613	struct pfioc_tm {
1614	int timeout;
1615	int seconds;
1616	};
1617
1618	struct pfioc_limit {
1619	int index;
1620	unsigned limit;
1621	};
1622
1623	struct pfioc_altq {
1624	u_int32_t action;
1625	u_int32_t ticket;
1626	u_int32_t nr;
1627	struct pf_altq altq;
1628	};
1629
1630	struct pfioc_qstats {
1631	u_int32_t ticket;
1632	u_int32_t nr;
1633	void *buf;
1634	int nbytes;
1635	u_int8_t scheduler;
1636	};
1637
1638	struct pfioc_ruleset {
1639	u_int32_t nr;
1640	char path[MAXPATHLEN];
1641	char name[PF_ANCHOR_NAME_SIZE];
1642	};
1643
1644	#define PF_RULESET_ALTQ (PF_RULESET_MAX)
1645	#define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1646	struct pfioc_trans {
1647	int size; /* number of elements */
1648	int esize; /* size of each element in bytes */
1649	struct pfioc_trans_e {
1650	int rs_num;
1651	char anchor[MAXPATHLEN];
1652	u_int32_t ticket;
1653	} *array;
1654	};
1655
1656	#define PFR_FLAG_ATOMIC 0x00000001
1657	#define PFR_FLAG_DUMMY 0x00000002
1658	#define PFR_FLAG_FEEDBACK 0x00000004
1659	#define PFR_FLAG_CLSTATS 0x00000008
1660	#define PFR_FLAG_ADDRSTOO 0x00000010
1661	#define PFR_FLAG_REPLACE 0x00000020
1662	#define PFR_FLAG_ALLRSETS 0x00000040
1663	#define PFR_FLAG_ALLMASK 0x0000007F
1664	#ifdef _KERNEL
1665	#define PFR_FLAG_USERIOCTL 0x10000000
1666	#endif
1667
1668	struct pfioc_table {
1669	struct pfr_table pfrio_table;
1670	void *pfrio_buffer;
1671	int pfrio_esize;
1672	int pfrio_size;
1673	int pfrio_size2;
1674	int pfrio_nadd;
1675	int pfrio_ndel;
1676	int pfrio_nchange;
1677	int pfrio_flags;
1678	u_int32_t pfrio_ticket;
1679	};
1680	#define pfrio_exists pfrio_nadd
1681	#define pfrio_nzero pfrio_nadd
1682	#define pfrio_nmatch pfrio_nadd
1683	#define pfrio_naddr pfrio_size2
1684	#define pfrio_setflag pfrio_size2
1685	#define pfrio_clrflag pfrio_nadd
1686
1687	struct pfioc_iface {
1688	char pfiio_name[IFNAMSIZ];
1689	void *pfiio_buffer;
1690	int pfiio_esize;
1691	int pfiio_size;
1692	int pfiio_nzero;
1693	int pfiio_flags;
1694	};
1695
1696
1697	/*
1698	* ioctl operations
1699	*/
1700
1701	#define DIOCSTART _IO ('D', 1)
1702	#define DIOCSTOP _IO ('D', 2)
1703	#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1704	#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1705	#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1706	/* XXX cut 8 - 17 */
1707	#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1708	#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1709	#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1710	#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1711	#define DIOCCLRSTATUS _IO ('D', 22)
1712	#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1713	#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1714	#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1715	#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1716	/* XXX cut 26 - 28 */
1717	#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1718	#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1719	#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1720	#define DIOCCLRRULECTRS _IO ('D', 38)
1721	#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1722	#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1723	#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1724	#define DIOCSTARTALTQ _IO ('D', 42)
1725	#define DIOCSTOPALTQ _IO ('D', 43)
1726	#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1727	#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1728	#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1729	#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1730	#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1731	#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1732	#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1733	#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1734	#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1735	#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1736	/* XXX cut 55 - 57 */
1737	#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1738	#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1739	#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1740	#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1741	#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1742	#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1743	#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1744	#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1745	#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1746	#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1747	#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1748	#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1749	#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1750	#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1751	#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1752	#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1753	#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1754	#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1755	#define DIOCOSFPFLUSH _IO('D', 78)
1756	#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1757	#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1758	#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1759	#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1760	#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1761	#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1762	#define DIOCCLRSRCNODES _IO('D', 85)
1763	#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1764	#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1765	#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1766	#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1767	#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1768	#ifdef __FreeBSD__
1769	struct pf_ifspeed {
1770	char ifname[IFNAMSIZ];
1771	u_int32_t baudrate;
1772	};
1773	#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1774	#endif
1775
1776	#ifdef _KERNEL
1777	RB_HEAD(pf_src_tree, pf_src_node);
1778	RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1779	#ifdef __FreeBSD__
1780	VNET_DECLARE(struct pf_src_tree, tree_src_tracking);
1781	#define V_tree_src_tracking VNET(tree_src_tracking)
1782	#else
1783	extern struct pf_src_tree tree_src_tracking;
1784	#endif
1785
1786	RB_HEAD(pf_state_tree_id, pf_state);
1787	RB_PROTOTYPE(pf_state_tree_id, pf_state,
1788	entry_id, pf_state_compare_id);
1789	#ifdef __FreeBSD__
1790	VNET_DECLARE(struct pf_state_tree_id, tree_id);
1791	#define V_tree_id VNET(tree_id)
1792	VNET_DECLARE(struct pf_state_queue, state_list);
1793	#define V_state_list VNET(state_list)
1794	#else
1795	extern struct pf_state_tree_id tree_id;
1796	extern struct pf_state_queue state_list;
1797	#endif
1798
1799	TAILQ_HEAD(pf_poolqueue, pf_pool);
1800	#ifdef __FreeBSD__
1801	VNET_DECLARE(struct pf_poolqueue, pf_pools[2]);
1802	#define V_pf_pools VNET(pf_pools)
1803	#else
1804	extern struct pf_poolqueue pf_pools[2];
1805	#endif
1806	TAILQ_HEAD(pf_altqqueue, pf_altq);
1807	#ifdef __FreeBSD__
1808	VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1809	#define V_pf_altqs VNET(pf_altqs)
1810	VNET_DECLARE(struct pf_palist, pf_pabuf);
1811	#define V_pf_pabuf VNET(pf_pabuf)
1812	#else
1813	extern struct pf_altqqueue pf_altqs[2];
1814	extern struct pf_palist pf_pabuf;
1815	#endif
1816
1817	#ifdef __FreeBSD__
1818	VNET_DECLARE(u_int32_t, ticket_altqs_active);
1819	#define V_ticket_altqs_active VNET(ticket_altqs_active)
1820	VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1821	#define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1822	VNET_DECLARE(int, altqs_inactive_open);
1823	#define V_altqs_inactive_open VNET(altqs_inactive_open)
1824	VNET_DECLARE(u_int32_t, ticket_pabuf);
1825	#define V_ticket_pabuf VNET(ticket_pabuf)
1826	VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1827	#define V_pf_altqs_active VNET(pf_altqs_active)
1828	VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1829	#define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1830	VNET_DECLARE(struct pf_poolqueue *, pf_pools_active);
1831	#define V_pf_pools_active VNET(pf_pools_active)
1832	VNET_DECLARE(struct pf_poolqueue *, pf_pools_inactive);
1833	#define V_pf_pools_inactive VNET(pf_pools_inactive)
1834	#else
1835	extern u_int32_t ticket_altqs_active;
1836	extern u_int32_t ticket_altqs_inactive;
1837	extern int altqs_inactive_open;
1838	extern u_int32_t ticket_pabuf;
1839	extern struct pf_altqqueue *pf_altqs_active;
1840	extern struct pf_altqqueue *pf_altqs_inactive;
1841	extern struct pf_poolqueue *pf_pools_active;
1842	extern struct pf_poolqueue *pf_pools_inactive;
1843	#endif
1844	extern int pf_tbladdr_setup(struct pf_ruleset *,
1845	struct pf_addr_wrap *);
1846	extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1847	extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1848	extern void pf_calc_skip_steps(struct pf_rulequeue *);
1849	#ifdef __FreeBSD__
1850	#ifdef ALTQ
1851	extern void pf_altq_ifnet_event(struct ifnet *, int);
1852	#endif
1853	VNET_DECLARE(uma_zone_t, pf_src_tree_pl);
1854	#define V_pf_src_tree_pl VNET(pf_src_tree_pl)
1855	VNET_DECLARE(uma_zone_t, pf_rule_pl);
1856	#define V_pf_rule_pl VNET(pf_rule_pl)
1857	VNET_DECLARE(uma_zone_t, pf_state_pl);
1858	#define V_pf_state_pl VNET(pf_state_pl)
1859	VNET_DECLARE(uma_zone_t, pf_state_key_pl);
1860	#define V_pf_state_key_pl VNET(pf_state_key_pl)
1861	VNET_DECLARE(uma_zone_t, pf_state_item_pl);
1862	#define V_pf_state_item_pl VNET(pf_state_item_pl)
1863	VNET_DECLARE(uma_zone_t, pf_altq_pl);
1864	#define V_pf_altq_pl VNET(pf_altq_pl)
1865	VNET_DECLARE(uma_zone_t, pf_pooladdr_pl);
1866	#define V_pf_pooladdr_pl VNET(pf_pooladdr_pl)
1867	VNET_DECLARE(uma_zone_t, pfr_ktable_pl);
1868	#define V_pfr_ktable_pl VNET(pfr_ktable_pl)
1869	VNET_DECLARE(uma_zone_t, pfr_kentry_pl);
1870	#define V_pfr_kentry_pl VNET(pfr_kentry_pl)
1871	VNET_DECLARE(uma_zone_t, pfr_kcounters_pl);
1872	#define V_pfr_kcounters_pl VNET(pfr_kcounters_pl)
1873	VNET_DECLARE(uma_zone_t, pf_cache_pl);
1874	#define V_pf_cache_pl VNET(pf_cache_pl)
1875	VNET_DECLARE(uma_zone_t, pf_cent_pl);
1876	#define V_pf_cent_pl VNET(pf_cent_pl)
1877	VNET_DECLARE(uma_zone_t, pf_state_scrub_pl);
1878	#define V_pf_state_scrub_pl VNET(pf_state_scrub_pl)
1879	VNET_DECLARE(uma_zone_t, pfi_addr_pl);
1880	#define V_pfi_addr_pl VNET(pfi_addr_pl)
1881	#else
1882	extern struct pool pf_src_tree_pl, pf_rule_pl;
1883	extern struct pool pf_state_pl, pf_state_key_pl, pf_state_item_pl,
1884	pf_altq_pl, pf_pooladdr_pl;
1885	extern struct pool pf_state_scrub_pl;
1886	#endif
1887	extern void pf_purge_thread(void *);
1888	#ifdef __FreeBSD__
1889	extern int pf_purge_expired_src_nodes(int);
1890	extern int pf_purge_expired_states(u_int32_t , int);
1891	#else
1892	extern void pf_purge_expired_src_nodes(int);
1893	extern void pf_purge_expired_states(u_int32_t);
1894	#endif
1895	extern void pf_unlink_state(struct pf_state *);
1896	extern void pf_free_state(struct pf_state *);
1897	extern int pf_state_insert(struct pfi_kif *,
1898	struct pf_state_key *,
1899	struct pf_state_key *,
1900	struct pf_state *);
1901	extern int pf_insert_src_node(struct pf_src_node **,
1902	struct pf_rule , struct pf_addr ,
1903	sa_family_t);
1904	void pf_src_tree_remove_state(struct pf_state *);
1905	extern struct pf_state pf_find_state_byid(struct pf_state_cmp );
1906	extern struct pf_state pf_find_state_all(struct pf_state_key_cmp ,
1907	u_int, int *);
1908	extern void pf_print_state(struct pf_state *);
1909	extern void pf_print_flags(u_int8_t);
1910	extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1911	u_int8_t);
1912
1913	#ifdef __FreeBSD__
1914	VNET_DECLARE(struct ifnet *, sync_ifp);
1915	#define V_sync_ifp VNET(sync_ifp);
1916	VNET_DECLARE(struct pf_rule, pf_default_rule);
1917	#define V_pf_default_rule VNET(pf_default_rule)
1918	#else
1919	extern struct ifnet *sync_ifp;
1920	extern struct pf_rule pf_default_rule;
1921	#endif
1922	extern void pf_addrcpy(struct pf_addr , struct pf_addr ,
1923	u_int8_t);
1924	void pf_rm_rule(struct pf_rulequeue *,
1925	struct pf_rule *);
1926	#ifndef __FreeBSD__
1927	struct pf_divert pf_find_divert(struct mbuf );
1928	#endif
1929
1930	#ifdef INET
1931	#ifdef __FreeBSD__
1932	int pf_test(int, struct ifnet , struct mbuf , struct ether_header ,
1933	struct inpcb *);
1934	#else
1935	int pf_test(int, struct ifnet , struct mbuf , struct ether_header );
1936	#endif
1937	#endif /* INET */
1938
1939	#ifdef INET6
1940	#ifdef __FreeBSD__
1941	int pf_test6(int, struct ifnet , struct mbuf , struct ether_header ,
1942	struct inpcb *);
1943	#else
1944	int pf_test6(int, struct ifnet , struct mbuf , struct ether_header );
1945	#endif
1946	void pf_poolmask(struct pf_addr , struct pf_addr,
1947	struct pf_addr , struct pf_addr , u_int8_t);
1948	void pf_addr_inc(struct pf_addr *, sa_family_t);
1949	#endif /* INET6 */
1950
1951	#ifdef __FreeBSD__
1952	u_int32_t pf_new_isn(struct pf_state *);
1953	#endif
1954	void pf_pull_hdr(struct mbuf , int, void , int, u_short , u_short *,
1955	sa_family_t);
1956	void pf_change_a(void , u_int16_t , u_int32_t, u_int8_t);
1957	int pflog_packet(struct pfi_kif , struct mbuf , sa_family_t, u_int8_t,
1958	u_int8_t, struct pf_rule , struct pf_rule , struct pf_ruleset *,
1959	struct pf_pdesc *);
1960	void pf_send_deferred_syn(struct pf_state *);
1961	int pf_match_addr(u_int8_t, struct pf_addr , struct pf_addr ,
1962	struct pf_addr *, sa_family_t);
1963	int pf_match_addr_range(struct pf_addr , struct pf_addr ,
1964	struct pf_addr *, sa_family_t);
1965	int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1966	int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1967	int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1968	int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1969
1970	void pf_normalize_init(void);
1971	int pf_normalize_ip(struct mbuf *, int, struct pfi_kif , u_short *,
1972	struct pf_pdesc *);
1973	int pf_normalize_ip6(struct mbuf *, int, struct pfi_kif , u_short *,
1974	struct pf_pdesc *);
1975	int pf_normalize_tcp(int, struct pfi_kif , struct mbuf , int, int, void *,
1976	struct pf_pdesc *);
1977	void pf_normalize_tcp_cleanup(struct pf_state *);
1978	int pf_normalize_tcp_init(struct mbuf , int, struct pf_pdesc ,
1979	struct tcphdr , struct pf_state_peer , struct pf_state_peer *);
1980	int pf_normalize_tcp_stateful(struct mbuf , int, struct pf_pdesc ,
1981	u_short , struct tcphdr , struct pf_state *,
1982	struct pf_state_peer , struct pf_state_peer , int *);
1983	u_int32_t
1984	pf_state_expires(const struct pf_state *);
1985	void pf_purge_expired_fragments(void);
1986	int pf_routable(struct pf_addr addr, sa_family_t af, struct pfi_kif ,
1987	int);
1988	int pf_rtlabel_match(struct pf_addr , sa_family_t, struct pf_addr_wrap ,
1989	int);
1990	#ifdef __FreeBSD__
1991	int pf_socket_lookup(int, struct pf_pdesc , struct inpcb );
1992	#else
1993	int pf_socket_lookup(int, struct pf_pdesc *);
1994	#endif
1995	struct pf_state_key *pf_alloc_state_key(int);
1996	void pf_pkt_addr_changed(struct mbuf *);
1997	int pf_state_key_attach(struct pf_state_key , struct pf_state , int);
1998	void pfr_initialize(void);
1999	int pfr_match_addr(struct pfr_ktable , struct pf_addr , sa_family_t);
2000	void pfr_update_stats(struct pfr_ktable , struct pf_addr , sa_family_t,
2001	u_int64_t, int, int, int);
2002	int pfr_pool_get(struct pfr_ktable , int , struct pf_addr *,
2003	struct pf_addr , struct pf_addr , sa_family_t);
2004	void pfr_dynaddr_update(struct pfr_ktable , struct pfi_dynaddr );
2005	struct pfr_ktable *
2006	pfr_attach_table(struct pf_ruleset , char , int);
2007	void pfr_detach_table(struct pfr_ktable *);
2008	int pfr_clr_tables(struct pfr_table , int , int);
2009	int pfr_add_tables(struct pfr_table , int, int , int);
2010	int pfr_del_tables(struct pfr_table , int, int , int);
2011	int pfr_get_tables(struct pfr_table , struct pfr_table , int *, int);
2012	int pfr_get_tstats(struct pfr_table , struct pfr_tstats , int *, int);
2013	int pfr_clr_tstats(struct pfr_table , int, int , int);
2014	int pfr_set_tflags(struct pfr_table , int, int, int, int , int *, int);
2015	int pfr_clr_addrs(struct pfr_table , int , int);
2016	int pfr_insert_kentry(struct pfr_ktable , struct pfr_addr , long);
2017	int pfr_add_addrs(struct pfr_table , struct pfr_addr , int, int *,
2018	int);
2019	int pfr_del_addrs(struct pfr_table , struct pfr_addr , int, int *,
2020	int);
2021	int pfr_set_addrs(struct pfr_table , struct pfr_addr , int, int *,
2022	int , int , int *, int, u_int32_t);
2023	int pfr_get_addrs(struct pfr_table , struct pfr_addr , int *, int);
2024	int pfr_get_astats(struct pfr_table , struct pfr_astats , int *, int);
2025	int pfr_clr_astats(struct pfr_table , struct pfr_addr , int, int *,
2026	int);
2027	int pfr_tst_addrs(struct pfr_table , struct pfr_addr , int, int *,
2028	int);
2029	int pfr_ina_begin(struct pfr_table , u_int32_t , int *, int);
2030	int pfr_ina_rollback(struct pfr_table , u_int32_t, int , int);
2031	int pfr_ina_commit(struct pfr_table , u_int32_t, int , int *, int);
2032	int pfr_ina_define(struct pfr_table , struct pfr_addr , int, int *,
2033	int *, u_int32_t, int);
2034
2035	#ifdef __FreeBSD__
2036	VNET_DECLARE(struct pfi_kif *, pfi_all);
2037	#define V_pfi_all VNET(pfi_all)
2038	#else
2039	extern struct pfi_kif *pfi_all;
2040	#endif
2041
2042	void pfi_initialize(void);
2043	#ifdef __FreeBSD__
2044	void pfi_cleanup(void);
2045	#endif
2046	struct pfi_kif pfi_kif_get(const char );
2047	void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
2048	void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
2049	int pfi_kif_match(struct pfi_kif , struct pfi_kif );
2050	void pfi_attach_ifnet(struct ifnet *);
2051	void pfi_detach_ifnet(struct ifnet *);
2052	void pfi_attach_ifgroup(struct ifg_group *);
2053	void pfi_detach_ifgroup(struct ifg_group *);
2054	void pfi_group_change(const char *);
2055	int pfi_match_addr(struct pfi_dynaddr , struct pf_addr ,
2056	sa_family_t);
2057	int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2058	void pfi_dynaddr_remove(struct pf_addr_wrap *);
2059	void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2060	void pfi_update_status(const char , struct pf_status );
2061	int pfi_get_ifaces(const char , struct pfi_kif , int *);
2062	int pfi_set_flags(const char *, int);
2063	int pfi_clear_flags(const char *, int);
2064
2065	#ifdef __FreeBSD__
2066	int pf_match_tag(struct mbuf , struct pf_rule , int *,
2067	struct pf_mtag *);
2068	#else
2069	int pf_match_tag(struct mbuf , struct pf_rule , int *);
2070	#endif
2071	u_int16_t pf_tagname2tag(char *);
2072	void pf_tag2tagname(u_int16_t, char *);
2073	void pf_tag_ref(u_int16_t);
2074	void pf_tag_unref(u_int16_t);
2075	#ifdef __FreeBSD__
2076	int pf_tag_packet(struct mbuf , int, int, struct pf_mtag );
2077	#else
2078	int pf_tag_packet(struct mbuf *, int, int);
2079	#endif
2080	u_int32_t pf_qname2qid(char *);
2081	void pf_qid2qname(u_int32_t, char *);
2082	void pf_qid_unref(u_int32_t);
2083
2084	#ifdef __FreeBSD__
2085	VNET_DECLARE(struct pf_status, pf_status);
2086	#define V_pf_status VNET(pf_status)
2087	#else
2088	extern struct pf_status pf_status;
2089	#endif
2090
2091	#ifdef __FreeBSD__
2092	VNET_DECLARE(uma_zone_t, pf_frent_pl);
2093	#define V_pf_frent_pl VNET(pf_frent_pl)
2094	VNET_DECLARE(uma_zone_t, pf_frag_pl);
2095	#define V_pf_frag_pl VNET(pf_frag_pl)
2096	VNET_DECLARE(struct sx, pf_consistency_lock);
2097	#define V_pf_consistency_lock VNET(pf_consistency_lock)
2098	#else
2099	extern struct pool pf_frent_pl, pf_frag_pl;
2100	extern struct rwlock pf_consistency_lock;
2101	#endif
2102
2103	struct pf_pool_limit {
2104	void *pp;
2105	unsigned limit;
2106	};
2107	#ifdef __FreeBSD__
2108	VNET_DECLARE(struct pf_pool_limit, pf_pool_limits[PF_LIMIT_MAX]);
2109	#define V_pf_pool_limits VNET(pf_pool_limits)
2110	#else
2111	extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
2112	#endif
2113
2114	#ifdef __FreeBSD__
2115	struct pf_frent {
2116	LIST_ENTRY(pf_frent) fr_next;
2117	struct ip *fr_ip;
2118	struct mbuf *fr_m;
2119	};
2120
2121	struct pf_frcache {
2122	LIST_ENTRY(pf_frcache) fr_next;
2123	uint16_t fr_off;
2124	uint16_t fr_end;
2125	};
2126
2127	struct pf_fragment {
2128	RB_ENTRY(pf_fragment) fr_entry;
2129	TAILQ_ENTRY(pf_fragment) frag_next;
2130	struct in_addr fr_src;
2131	struct in_addr fr_dst;
2132	u_int8_t fr_p; /* protocol of this fragment */
2133	u_int8_t fr_flags; /* status flags */
2134	u_int16_t fr_id; /* fragment id for reassemble */
2135	u_int16_t fr_max; /* fragment data max */
2136	u_int32_t fr_timeout;
2137	#define fr_queue fr_u.fru_queue
2138	#define fr_cache fr_u.fru_cache
2139	union {
2140	LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
2141	LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
2142	} fr_u;
2143	};
2144	#endif /* (__FreeBSD__) */
2145
2146	#endif /* _KERNEL */
2147
2148	#ifdef __FreeBSD__
2149	#ifdef _KERNEL
2150	VNET_DECLARE(struct pf_anchor_global, pf_anchors);
2151	#define V_pf_anchors VNET(pf_anchors)
2152	VNET_DECLARE(struct pf_anchor, pf_main_anchor);
2153	#define V_pf_main_anchor VNET(pf_main_anchor)
2154	#define pf_main_ruleset V_pf_main_anchor.ruleset
2155	#endif
2156	#else
2157	extern struct pf_anchor_global pf_anchors;
2158	extern struct pf_anchor pf_main_anchor;
2159	#define pf_main_ruleset pf_main_anchor.ruleset
2160	#endif
2161
2162	/* these ruleset functions can be linked into userland programs (pfctl) */
2163	int pf_get_ruleset_number(u_int8_t);
2164	void pf_init_ruleset(struct pf_ruleset *);
2165	int pf_anchor_setup(struct pf_rule *,
2166	const struct pf_ruleset , const char );
2167	int pf_anchor_copyout(const struct pf_ruleset *,
2168	const struct pf_rule , struct pfioc_rule );
2169	void pf_anchor_remove(struct pf_rule *);
2170	void pf_remove_if_empty_ruleset(struct pf_ruleset *);
2171	struct pf_anchor pf_find_anchor(const char );
2172	struct pf_ruleset pf_find_ruleset(const char );
2173	struct pf_ruleset pf_find_or_create_ruleset(const char );
2174	void pf_rs_initialize(void);
2175
2176	#ifndef __FreeBSD__
2177	#ifdef _KERNEL
2178	int pf_anchor_copyout(const struct pf_ruleset *,
2179	const struct pf_rule , struct pfioc_rule );
2180	void pf_anchor_remove(struct pf_rule *);
2181
2182	#endif /* _KERNEL */
2183	#endif
2184
2185	/* The fingerprint functions can be linked into userland programs (tcpdump) */
2186	int pf_osfp_add(struct pf_osfp_ioctl *);
2187	#ifdef _KERNEL
2188	struct pf_osfp_enlist *
2189	pf_osfp_fingerprint(struct pf_pdesc , struct mbuf , int,
2190	const struct tcphdr *);
2191	#endif /* _KERNEL */
2192	struct pf_osfp_enlist *
2193	pf_osfp_fingerprint_hdr(const struct ip , const struct ip6_hdr ,
2194	const struct tcphdr *);
2195	void pf_osfp_flush(void);
2196	int pf_osfp_get(struct pf_osfp_ioctl *);
2197	#ifdef __FreeBSD__
2198	int pf_osfp_initialize(void);
2199	void pf_osfp_cleanup(void);
2200	#else
2201	void pf_osfp_initialize(void);
2202	#endif
2203	int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2204	struct pf_os_fingerprint *
2205	pf_osfp_validate(void);
2206
2207	#ifdef _KERNEL
2208	void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
2209
2210	void pf_step_into_anchor(int , struct pf_ruleset *, int,
2211	struct pf_rule , struct pf_rule , int *);
2212	int pf_step_out_of_anchor(int , struct pf_ruleset *,
2213	int, struct pf_rule , struct pf_rule ,
2214	int *);
2215
2216	int pf_map_addr(u_int8_t, struct pf_rule *,
2217	struct pf_addr , struct pf_addr ,
2218	struct pf_addr , struct pf_src_node *);
2219	struct pf_rule pf_get_translation(struct pf_pdesc , struct mbuf *,
2220	int, int, struct pfi_kif , struct pf_src_node *,
2221	struct pf_state_key , struct pf_state_key ,
2222	struct pf_state_key , struct pf_state_key ,
2223	struct pf_addr , struct pf_addr ,
2224	u_int16_t, u_int16_t);
2225
2226	int pf_state_key_setup(struct pf_pdesc , struct pf_rule ,
2227	struct pf_state_key , struct pf_state_key ,
2228	struct pf_state_key , struct pf_state_key ,
2229	struct pf_addr , struct pf_addr ,
2230	u_int16_t, u_int16_t);
2231	#endif /* _KERNEL */
2232
2233
2234	#endif /* _NET_PFVAR_H_ */

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