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b0d623f7 1/*
13f56ec4 2 * Copyright (c) 2007-2012 Apple Inc. All rights reserved.
b0d623f7
A		 3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
d1ecb069 29/* $apfw: git commit b6bf13f8321283cd7ee82b1795e86506084b1b95 $ */
b0d623f7
A		 30/* $OpenBSD: pfvar.h,v 1.259 2007/12/02 12:08:04 pascoe Exp $ */
31
32/*
33 * Copyright (c) 2001 Daniel Hartmeier
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * - Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * - Redistributions in binary form must reproduce the above
43 * copyright notice, this list of conditions and the following
44 * disclaimer in the documentation and/or other materials provided
45 * with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
50 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
51 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
53 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
54 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
55 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
57 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
58 * POSSIBILITY OF SUCH DAMAGE.
59 *
60 */
61
62#ifndef _NET_PFVAR_H_
63#define _NET_PFVAR_H_
64
65#ifdef PRIVATE
d1ecb069
A		 66/*
67 * XXX
68 * XXX Private interfaces. Do not include this file; use pfctl(8) instead.
69 * XXX
70 */
b0d623f7
A		 71#if PF || !defined(KERNEL)
72
73#ifdef __cplusplus
74extern "C" {
75#endif
76
316670eb 77#include <stdbool.h>
b0d623f7
A		 78#include <sys/param.h>
79#include <sys/types.h>
80#include <sys/queue.h>
6d2010ae 81#include <libkern/tree.h>
b0d623f7
A		 82
83#include <net/radix.h>
84#include <netinet/in.h>
85
86#ifdef KERNEL
87#include <kern/kern_types.h>
88#include <kern/zalloc.h>
89#include <kern/lock.h>
90
91#include <machine/endian.h>
92#include <sys/systm.h>
b0d623f7
A		 93
94#if BYTE_ORDER == BIG_ENDIAN
95#define htobe64(x) (x)
96#else /* LITTLE ENDIAN */
97#define htobe64(x) __DARWIN_OSSwapInt64(x)
98#endif /* LITTLE_ENDIAN */
99
100#define be64toh(x) htobe64(x)
101
102__private_extern__ lck_rw_t *pf_perim_lock;
103__private_extern__ lck_mtx_t *pf_lock;
104
105struct pool {
106 struct zone *pool_zone; /* pointer to backend zone */
107 const char *pool_name; /* name of pool */
108 unsigned int pool_count; /* # of outstanding elements */
109 unsigned int pool_hiwat; /* high watermark */
110 unsigned int pool_limit; /* hard limit */
111 unsigned int pool_fails; /* # of failed allocs due to limit */
112};
113
114#define PR_NOWAIT FALSE
115#define PR_WAITOK TRUE
116
117__private_extern__ void pool_init(struct pool *, size_t, unsigned int,
118 unsigned int, int, const char *, void *);
119__private_extern__ void pool_destroy(struct pool *);
120__private_extern__ void pool_sethiwat(struct pool *, int);
121__private_extern__ void pool_sethardlimit(struct pool *, int,
122 const char *, int);
123__private_extern__ void *pool_get(struct pool *, int);
124__private_extern__ void pool_put(struct pool *, void *);
125__private_extern__ u_int64_t pf_time_second(void);
b7266188 126__private_extern__ u_int64_t pf_calendar_time_second(void);
b0d623f7
A		 127#endif /* KERNEL */
128
129union sockaddr_union {
130 struct sockaddr sa;
131 struct sockaddr_in sin;
132 struct sockaddr_in6 sin6;
133};
134
b0d623f7
A		 135#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
136#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
137
138#define PF_MD5_DIGEST_LENGTH 16
139#ifdef MD5_DIGEST_LENGTH
140#if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
141#error
d1ecb069
A		 142#endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */
143#endif /* MD5_DIGEST_LENGTH */
b0d623f7 144
d1ecb069
A		 145#ifdef KERNEL
146struct ip;
147struct ip6_hdr;
148struct tcphdr;
b0d623f7
A		 149struct pf_grev1_hdr;
150struct pf_esp_hdr;
d1ecb069 151#endif /* KERNEL */
b0d623f7 152
316670eb
A		 153#define PF_GRE_PPTP_VARIANT 0x01
154
b0d623f7
A		 155enum { PF_INOUT, PF_IN, PF_OUT };
156enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
316670eb
A		 157 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP,
158 PF_DUMMYNET, PF_NODUMMYNET };
b0d623f7 159enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
316670eb
A		 160 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET,
161 PF_RULESET_MAX };
b0d623f7
A		 162enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
163 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
164enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
165enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
166 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
167 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
168enum { PF_GET_NONE, PF_GET_CLR_CNTR };
169
170/*
171 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
172 * PFTM_MAX, special cases afterwards. See pf_state_expires().
173 */
174enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
175 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
176 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
177 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
316670eb
A		 178 PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING,
179 PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING,
180 PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
b0d623f7
A		 181 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
182 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
183 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED,
184 PFTM_UNTIL_PACKET };
185
186/* PFTM default values */
187#define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
188#define PFTM_TCP_OPENING_VAL 30 /* No response yet */
189#define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */
190#define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */
191#define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
192#define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
193#define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
194#define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
195#define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
196#define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
197#define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
b0d623f7
A		 198#define PFTM_GREv1_FIRST_PACKET_VAL 120
199#define PFTM_GREv1_INITIATING_VAL 30
200#define PFTM_GREv1_ESTABLISHED_VAL 1800
201#define PFTM_ESP_FIRST_PACKET_VAL 120
202#define PFTM_ESP_INITIATING_VAL 30
203#define PFTM_ESP_ESTABLISHED_VAL 900
b0d623f7
A		 204#define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
205#define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
206#define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
207#define PFTM_FRAG_VAL 30 /* Fragment expire */
208#define PFTM_INTERVAL_VAL 10 /* Expire interval */
209#define PFTM_SRC_NODE_VAL 0 /* Source tracking */
210#define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
211
212enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
213enum { PF_LIMIT_STATES,
b0d623f7 214 PF_LIMIT_APP_STATES,
b0d623f7
A		 215 PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
216 PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
217#define PF_POOL_IDMASK 0x0f
218enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
219 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
220enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
221 PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED,
222 PF_ADDR_RANGE };
223#define PF_POOL_TYPEMASK 0x0f
224#define PF_POOL_STICKYADDR 0x20
225#define PF_WSCALE_FLAG 0x80
226#define PF_WSCALE_MASK 0x0f
227
228#define PF_LOG 0x01
229#define PF_LOG_ALL 0x02
230#define PF_LOG_SOCKET_LOOKUP 0x04
231
232struct pf_addr {
233 union {
234 struct in_addr v4;
235 struct in6_addr v6;
236 u_int8_t addr8[16];
237 u_int16_t addr16[8];
238 u_int32_t addr32[4];
239 } pfa; /* 128-bit address */
240#define v4 pfa.v4
241#define v6 pfa.v6
242#define addr8 pfa.addr8
243#define addr16 pfa.addr16
244#define addr32 pfa.addr32
245};
246
247#define PF_TABLE_NAME_SIZE 32
248
249#define PFI_AFLAG_NETWORK 0x01
250#define PFI_AFLAG_BROADCAST 0x02
251#define PFI_AFLAG_PEER 0x04
252#define PFI_AFLAG_MODEMASK 0x07
253#define PFI_AFLAG_NOALIAS 0x08
254
255#ifndef RTLABEL_LEN
256#define RTLABEL_LEN 32
257#endif
258
259struct pf_addr_wrap {
260 union {
261 struct {
262 struct pf_addr addr;
263 struct pf_addr mask;
264 } a;
265 char ifname[IFNAMSIZ];
266 char tblname[PF_TABLE_NAME_SIZE];
267 char rtlabelname[RTLABEL_LEN];
268 u_int32_t rtlabel;
269 } v;
270 union {
d1ecb069 271#ifdef KERNEL
b0d623f7
A		 272 struct pfi_dynaddr *dyn __attribute__((aligned(8)));
273 struct pfr_ktable *tbl __attribute__((aligned(8)));
d1ecb069
A		 274#else /* !KERNEL */
275 void *dyn __attribute__((aligned(8)));
276 void *tbl __attribute__((aligned(8)));
277#endif /* !KERNEL */
b0d623f7
A		 278 int dyncnt __attribute__((aligned(8)));
279 int tblcnt __attribute__((aligned(8)));
280 } p __attribute__((aligned(8)));
281 u_int8_t type; /* PF_ADDR_* */
282 u_int8_t iflags; /* PFI_AFLAG_* */
283};
284
b0d623f7
A		 285struct pf_port_range {
286 u_int16_t port[2];
287 u_int8_t op;
288};
289
290union pf_rule_xport {
291 struct pf_port_range range;
292 u_int16_t call_id;
293 u_int32_t spi;
294};
b0d623f7
A		 295
296#ifdef KERNEL
297struct pfi_dynaddr {
298 TAILQ_ENTRY(pfi_dynaddr) entry;
299 struct pf_addr pfid_addr4;
300 struct pf_addr pfid_mask4;
301 struct pf_addr pfid_addr6;
302 struct pf_addr pfid_mask6;
303 struct pfr_ktable *pfid_kt;
304 struct pfi_kif *pfid_kif;
305 void *pfid_hook_cookie;
306 int pfid_net; /* mask or 128 */
307 int pfid_acnt4; /* address count IPv4 */
308 int pfid_acnt6; /* address count IPv6 */
309 sa_family_t pfid_af; /* rule af */
310 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
311};
312
313/*
314 * Address manipulation macros
315 */
316
317#if INET
318#if !INET6
319#define PF_INET_ONLY
320#endif /* ! INET6 */
321#endif /* INET */
322
323#if INET6
324#if !INET
325#define PF_INET6_ONLY
326#endif /* ! INET */
327#endif /* INET6 */
328
329#if INET
330#if INET6
331#define PF_INET_INET6
332#endif /* INET6 */
333#endif /* INET */
334
d1ecb069 335#else /* !KERNEL */
b0d623f7
A		 336
337#define PF_INET_INET6
338
d1ecb069 339#endif /* !KERNEL */
b0d623f7
A		 340
341/* Both IPv4 and IPv6 */
342#ifdef PF_INET_INET6
343
344#define PF_AEQ(a, b, c) \
345 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
346 ((a)->addr32[3] == (b)->addr32[3] && \
347 (a)->addr32[2] == (b)->addr32[2] && \
348 (a)->addr32[1] == (b)->addr32[1] && \
349 (a)->addr32[0] == (b)->addr32[0])) \
350
351#define PF_ANEQ(a, b, c) \
352 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
353 ((a)->addr32[3] != (b)->addr32[3] || \
354 (a)->addr32[2] != (b)->addr32[2] || \
355 (a)->addr32[1] != (b)->addr32[1] || \
356 (a)->addr32[0] != (b)->addr32[0])) \
357
316670eb
A		 358#define PF_ALEQ(a, b, c) \
359 ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \
360 ((a)->addr32[3] <= (b)->addr32[3] && \
361 (a)->addr32[2] <= (b)->addr32[2] && \
362 (a)->addr32[1] <= (b)->addr32[1] && \
363 (a)->addr32[0] <= (b)->addr32[0])) \
364
b0d623f7
A		 365#define PF_AZERO(a, c) \
366 ((c == AF_INET && !(a)->addr32[0]) || \
367 (!(a)->addr32[0] && !(a)->addr32[1] && \
368 !(a)->addr32[2] && !(a)->addr32[3])) \
369
370#define PF_MATCHA(n, a, m, b, f) \
371 pf_match_addr(n, a, m, b, f)
372
373#define PF_ACPY(a, b, f) \
374 pf_addrcpy(a, b, f)
375
376#define PF_AINC(a, f) \
377 pf_addr_inc(a, f)
378
379#define PF_POOLMASK(a, b, c, d, f) \
380 pf_poolmask(a, b, c, d, f)
381
382#else
383
384/* Just IPv6 */
385
386#ifdef PF_INET6_ONLY
387
388#define PF_AEQ(a, b, c) \
389 ((a)->addr32[3] == (b)->addr32[3] && \
390 (a)->addr32[2] == (b)->addr32[2] && \
391 (a)->addr32[1] == (b)->addr32[1] && \
392 (a)->addr32[0] == (b)->addr32[0]) \
393
394#define PF_ANEQ(a, b, c) \
395 ((a)->addr32[3] != (b)->addr32[3] || \
396 (a)->addr32[2] != (b)->addr32[2] || \
397 (a)->addr32[1] != (b)->addr32[1] || \
398 (a)->addr32[0] != (b)->addr32[0]) \
399
316670eb
A		 400#define PF_ALEQ(a, b, c) \
401 ((a)->addr32[3] <= (b)->addr32[3] && \
402 (a)->addr32[2] <= (b)->addr32[2] && \
403 (a)->addr32[1] <= (b)->addr32[1] && \
404 (a)->addr32[0] <= (b)->addr32[0]) \
405
b0d623f7
A		 406#define PF_AZERO(a, c) \
407 (!(a)->addr32[0] && \
408 !(a)->addr32[1] && \
409 !(a)->addr32[2] && \
410 !(a)->addr32[3]) \
411
412#define PF_MATCHA(n, a, m, b, f) \
413 pf_match_addr(n, a, m, b, f)
414
415#define PF_ACPY(a, b, f) \
416 pf_addrcpy(a, b, f)
417
418#define PF_AINC(a, f) \
419 pf_addr_inc(a, f)
420
421#define PF_POOLMASK(a, b, c, d, f) \
422 pf_poolmask(a, b, c, d, f)
423
424#else
425
426/* Just IPv4 */
427#ifdef PF_INET_ONLY
428
429#define PF_AEQ(a, b, c) \
430 ((a)->addr32[0] == (b)->addr32[0])
431
432#define PF_ANEQ(a, b, c) \
433 ((a)->addr32[0] != (b)->addr32[0])
434
316670eb
A		 435#define PF_ALEQ(a, b, c) \
436 ((a)->addr32[0] <= (b)->addr32[0])
437
b0d623f7
A		 438#define PF_AZERO(a, c) \
439 (!(a)->addr32[0])
440
441#define PF_MATCHA(n, a, m, b, f) \
442 pf_match_addr(n, a, m, b, f)
443
444#define PF_ACPY(a, b, f) \
445 (a)->v4.s_addr = (b)->v4.s_addr
446
447#define PF_AINC(a, f) \
448 do { \
449 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
450 } while (0)
451
452#define PF_POOLMASK(a, b, c, d, f) \
453 do { \
454 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
455 (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \
456 } while (0)
457
458#endif /* PF_INET_ONLY */
459#endif /* PF_INET6_ONLY */
460#endif /* PF_INET_INET6 */
461
d1ecb069 462#ifdef KERNEL
b0d623f7
A		 463#define PF_MISMATCHAW(aw, x, af, neg, ifp) \
464 ( \
465 (((aw)->type == PF_ADDR_NOROUTE && \
466 pf_routable((x), (af), NULL)) || \
467 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
468 pf_routable((x), (af), (ifp))) || \
469 ((aw)->type == PF_ADDR_RTLABEL && \
470 !pf_rtlabel_match((x), (af), (aw))) || \
471 ((aw)->type == PF_ADDR_TABLE && \
472 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
473 ((aw)->type == PF_ADDR_DYNIFTL && \
474 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
475 ((aw)->type == PF_ADDR_RANGE && \
476 !pf_match_addr_range(&(aw)->v.a.addr, \
477 &(aw)->v.a.mask, (x), (af))) || \
478 ((aw)->type == PF_ADDR_ADDRMASK && \
479 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
480 !PF_MATCHA(0, &(aw)->v.a.addr, \
481 &(aw)->v.a.mask, (x), (af))))) != \
482 (neg) \
483 )
d1ecb069 484#endif /* KERNEL */
b0d623f7
A		 485
486struct pf_rule_uid {
487 uid_t uid[2];
488 u_int8_t op;
489 u_int8_t _pad[3];
490};
491
492struct pf_rule_gid {
493 uid_t gid[2];
494 u_int8_t op;
495 u_int8_t _pad[3];
496};
497
498struct pf_rule_addr {
499 struct pf_addr_wrap addr;
b0d623f7
A		 500 union pf_rule_xport xport;
501 u_int8_t neg;
b0d623f7
A		 502};
503
504struct pf_pooladdr {
505 struct pf_addr_wrap addr;
506 TAILQ_ENTRY(pf_pooladdr) entries;
507#if !defined(__LP64__)
d1ecb069 508 u_int32_t _pad[2];
b0d623f7
A		 509#endif /* !__LP64__ */
510 char ifname[IFNAMSIZ];
d1ecb069 511#ifdef KERNEL
b0d623f7 512 struct pfi_kif *kif __attribute__((aligned(8)));
d1ecb069
A		 513#else /* !KERNEL */
514 void *kif __attribute__((aligned(8)));
515#endif /* !KERNEL */
b0d623f7
A		 516};
517
518TAILQ_HEAD(pf_palist, pf_pooladdr);
519
520struct pf_poolhashkey {
521 union {
522 u_int8_t key8[16];
523 u_int16_t key16[8];
524 u_int32_t key32[4];
525 } pfk; /* 128-bit hash key */
526#define key8 pfk.key8
527#define key16 pfk.key16
528#define key32 pfk.key32
529};
530
531struct pf_pool {
532 struct pf_palist list;
533#if !defined(__LP64__)
d1ecb069 534 u_int32_t _pad[2];
b0d623f7 535#endif /* !__LP64__ */
d1ecb069 536#ifdef KERNEL
b0d623f7 537 struct pf_pooladdr *cur __attribute__((aligned(8)));
d1ecb069
A		 538#else /* !KERNEL */
539 void *cur __attribute__((aligned(8)));
540#endif /* !KERNEL */
b0d623f7
A		 541 struct pf_poolhashkey key __attribute__((aligned(8)));
542 struct pf_addr counter;
543 int tblidx;
544 u_int16_t proxy_port[2];
545 u_int8_t port_op;
546 u_int8_t opts;
547};
548
549
550/* A packed Operating System description for fingerprinting */
551typedef u_int32_t pf_osfp_t;
552#define PF_OSFP_ANY ((pf_osfp_t)0)
553#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
554#define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
555
556struct pf_osfp_entry {
557 SLIST_ENTRY(pf_osfp_entry) fp_entry;
558#if !defined(__LP64__)
559 u_int32_t _pad;
560#endif /* !__LP64__ */
561 pf_osfp_t fp_os;
562 int fp_enflags;
563#define PF_OSFP_EXPANDED 0x001 /* expanded entry */
564#define PF_OSFP_GENERIC 0x002 /* generic signature */
565#define PF_OSFP_NODETAIL 0x004 /* no p0f details */
566#define PF_OSFP_LEN 32
567 char fp_class_nm[PF_OSFP_LEN];
568 char fp_version_nm[PF_OSFP_LEN];
569 char fp_subtype_nm[PF_OSFP_LEN];
570};
571#define PF_OSFP_ENTRY_EQ(a, b) \
572 ((a)->fp_os == (b)->fp_os && \
573 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
574 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
575 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
576
577/* handle pf_osfp_t packing */
578#define _FP_RESERVED_BIT 1 /* For the special negative #defines */
579#define _FP_UNUSED_BITS 1
580#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
581#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
582#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
583#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
584 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
585 ((1 << _FP_CLASS_BITS) - 1); \
586 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
587 ((1 << _FP_VERSION_BITS) - 1);\
588 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
589} while (0)
590#define PF_OSFP_PACK(osfp, class, version, subtype) do { \
591 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
592 + _FP_SUBTYPE_BITS); \
593 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
594 _FP_SUBTYPE_BITS; \
595 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
596} while (0)
597
598/* the fingerprint of an OSes TCP SYN packet */
599typedef u_int64_t pf_tcpopts_t;
600struct pf_os_fingerprint {
601 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
602 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
603 u_int16_t fp_wsize; /* TCP window size */
604 u_int16_t fp_psize; /* ip->ip_len */
605 u_int16_t fp_mss; /* TCP MSS */
606 u_int16_t fp_flags;
607#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
608#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
609#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
610#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
611#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
612#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
613#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
614#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
615#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
616#define PF_OSFP_MSS 0x0200 /* TCP MSS */
617#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
618#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
619#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
620#define PF_OSFP_TS0 0x2000 /* Zero timestamp */
621#define PF_OSFP_INET6 0x4000 /* IPv6 */
622 u_int8_t fp_optcnt; /* TCP option count */
623 u_int8_t fp_wscale; /* TCP window scaling */
624 u_int8_t fp_ttl; /* IPv4 TTL */
625#define PF_OSFP_MAXTTL_OFFSET 40
626/* TCP options packing */
627#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
628#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
629#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
630#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
631#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
632#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
633#define PF_OSFP_MAX_OPTS \
634 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
635 / PF_OSFP_TCPOPT_BITS
636
637 SLIST_ENTRY(pf_os_fingerprint) fp_next;
638};
639
640struct pf_osfp_ioctl {
641 struct pf_osfp_entry fp_os;
642 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
643 u_int16_t fp_wsize; /* TCP window size */
644 u_int16_t fp_psize; /* ip->ip_len */
645 u_int16_t fp_mss; /* TCP MSS */
646 u_int16_t fp_flags;
647 u_int8_t fp_optcnt; /* TCP option count */
648 u_int8_t fp_wscale; /* TCP window scaling */
649 u_int8_t fp_ttl; /* IPv4 TTL */
650
651 int fp_getnum; /* DIOCOSFPGET number */
652};
653
654
655union pf_rule_ptr {
656 struct pf_rule *ptr __attribute__((aligned(8)));
657 u_int32_t nr __attribute__((aligned(8)));
658} __attribute__((aligned(8)));
659
660#define PF_ANCHOR_NAME_SIZE 64
661
662struct pf_rule {
663 struct pf_rule_addr src;
664 struct pf_rule_addr dst;
665#define PF_SKIP_IFP 0
666#define PF_SKIP_DIR 1
667#define PF_SKIP_AF 2
668#define PF_SKIP_PROTO 3
669#define PF_SKIP_SRC_ADDR 4
670#define PF_SKIP_SRC_PORT 5
671#define PF_SKIP_DST_ADDR 6
672#define PF_SKIP_DST_PORT 7
673#define PF_SKIP_COUNT 8
674 union pf_rule_ptr skip[PF_SKIP_COUNT];
675#define PF_RULE_LABEL_SIZE 64
676 char label[PF_RULE_LABEL_SIZE];
677#define PF_QNAME_SIZE 64
678 char ifname[IFNAMSIZ];
679 char qname[PF_QNAME_SIZE];
680 char pqname[PF_QNAME_SIZE];
681#define PF_TAG_NAME_SIZE 64
682 char tagname[PF_TAG_NAME_SIZE];
683 char match_tagname[PF_TAG_NAME_SIZE];
684
685 char overload_tblname[PF_TABLE_NAME_SIZE];
686
687 TAILQ_ENTRY(pf_rule) entries;
688#if !defined(__LP64__)
d1ecb069 689 u_int32_t _pad[2];
b0d623f7
A		 690#endif /* !__LP64__ */
691 struct pf_pool rpool;
692
693 u_int64_t evaluations;
694 u_int64_t packets[2];
695 u_int64_t bytes[2];
696
316670eb
A		 697 u_int32_t ticket;
698#define PF_OWNER_NAME_SIZE 64
699 char owner[PF_OWNER_NAME_SIZE];
700 u_int32_t priority;
701
d1ecb069 702#ifdef KERNEL
b0d623f7 703 struct pfi_kif *kif __attribute__((aligned(8)));
d1ecb069
A		 704#else /* !KERNEL */
705 void *kif __attribute__((aligned(8)));
706#endif /* !KERNEL */
b0d623f7 707 struct pf_anchor *anchor __attribute__((aligned(8)));
d1ecb069 708#ifdef KERNEL
b0d623f7 709 struct pfr_ktable *overload_tbl __attribute__((aligned(8)));
d1ecb069
A		 710#else /* !KERNEL */
711 void *overload_tbl __attribute__((aligned(8)));
712#endif /* !KERNEL */
b0d623f7
A		 713
714 pf_osfp_t os_fingerprint __attribute__((aligned(8)));
715
716 unsigned int rtableid;
717 u_int32_t timeout[PFTM_MAX];
718 u_int32_t states;
719 u_int32_t max_states;
720 u_int32_t src_nodes;
721 u_int32_t max_src_nodes;
722 u_int32_t max_src_states;
723 u_int32_t max_src_conn;
724 struct {
725 u_int32_t limit;
726 u_int32_t seconds;
727 } max_src_conn_rate;
728 u_int32_t qid;
729 u_int32_t pqid;
730 u_int32_t rt_listid;
731 u_int32_t nr;
732 u_int32_t prob;
733 uid_t cuid;
734 pid_t cpid;
735
736 u_int16_t return_icmp;
737 u_int16_t return_icmp6;
738 u_int16_t max_mss;
739 u_int16_t tag;
740 u_int16_t match_tag;
741
742 struct pf_rule_uid uid;
743 struct pf_rule_gid gid;
744
745 u_int32_t rule_flag;
746 u_int8_t action;
747 u_int8_t direction;
748 u_int8_t log;
749 u_int8_t logif;
750 u_int8_t quick;
751 u_int8_t ifnot;
752 u_int8_t match_tag_not;
753 u_int8_t natpass;
754
755#define PF_STATE_NORMAL 0x1
756#define PF_STATE_MODULATE 0x2
757#define PF_STATE_SYNPROXY 0x3
758 u_int8_t keep_state;
759 sa_family_t af;
760 u_int8_t proto;
761 u_int8_t type;
762 u_int8_t code;
763 u_int8_t flags;
764 u_int8_t flagset;
765 u_int8_t min_ttl;
766 u_int8_t allow_opts;
767 u_int8_t rt;
768 u_int8_t return_ttl;
316670eb
A		 769
770/* service class categories */
771#define SCIDX_MASK 0x0f
772#define SC_BE 0x10
773#define SC_BK_SYS 0x11
774#define SC_BK 0x12
775#define SC_RD 0x13
776#define SC_OAM 0x14
777#define SC_AV 0x15
778#define SC_RV 0x16
779#define SC_VI 0x17
780#define SC_VO 0x18
781#define SC_CTL 0x19
782
783/* diffserve code points */
784#define DSCP_MASK 0xfc
785#define DSCP_CUMASK 0x03
786#define DSCP_EF 0xb8
787#define DSCP_AF11 0x28
788#define DSCP_AF12 0x30
789#define DSCP_AF13 0x38
790#define DSCP_AF21 0x48
791#define DSCP_AF22 0x50
792#define DSCP_AF23 0x58
793#define DSCP_AF31 0x68
794#define DSCP_AF32 0x70
795#define DSCP_AF33 0x78
796#define DSCP_AF41 0x88
797#define DSCP_AF42 0x90
798#define DSCP_AF43 0x98
799#define AF_CLASSMASK 0xe0
800#define AF_DROPPRECMASK 0x18
b0d623f7
A		 801 u_int8_t tos;
802 u_int8_t anchor_relative;
803 u_int8_t anchor_wildcard;
804
805#define PF_FLUSH 0x01
806#define PF_FLUSH_GLOBAL 0x02
807 u_int8_t flush;
808
b0d623f7
A		 809 u_int8_t proto_variant;
810 u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */
316670eb
A		 811 u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */
812 u_int32_t dnpipe;
813 u_int32_t dntype;
b0d623f7
A		 814};
815
316670eb
A		 816/* pf device identifiers */
817#define PFDEV_PF 0
818#define PFDEV_PFM 1
819#define PFDEV_MAX 2
820
b0d623f7
A		 821/* rule flags */
822#define PFRULE_DROP 0x0000
823#define PFRULE_RETURNRST 0x0001
824#define PFRULE_FRAGMENT 0x0002
825#define PFRULE_RETURNICMP 0x0004
826#define PFRULE_RETURN 0x0008
827#define PFRULE_NOSYNC 0x0010
828#define PFRULE_SRCTRACK 0x0020 /* track source states */
829#define PFRULE_RULESRCTRACK 0x0040 /* per rule */
830
831/* scrub flags */
832#define PFRULE_NODF 0x0100
833#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
834#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
835#define PFRULE_RANDOMID 0x0800
836#define PFRULE_REASSEMBLE_TCP 0x1000
837
316670eb
A		 838/* rule flags for TOS/DSCP/service class differentiation */
839#define PFRULE_TOS 0x2000
840#define PFRULE_DSCP 0x4000
841#define PFRULE_SC 0x8000
842
b0d623f7 843/* rule flags again */
316670eb
A		 844#define PFRULE_IFBOUND 0x00010000 /* if-bound */
845#define PFRULE_PFM 0x00020000 /* created by pfm device */
b0d623f7 846
316670eb
A		 847#define PFSTATE_HIWAT 10000 /* default state table size */
848#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
849#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
b0d623f7 850
316670eb 851#define PFAPPSTATE_HIWAT 10000 /* default same as state table */
b0d623f7
A		 852
853enum pf_extmap {
854 PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */
316670eb
A		 855 PF_EXTMAP_AD, /* Address-dependent mapping */
856 PF_EXTMAP_EI /* Endpoint-independent mapping */
b0d623f7
A		 857};
858
859enum pf_extfilter {
860 PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */
316670eb
A		 861 PF_EXTFILTER_AD, /* Address-dependent filtering */
862 PF_EXTFILTER_EI /* Endpoint-independent filtering */
b0d623f7 863};
b0d623f7
A		 864
865struct pf_threshold {
866 u_int32_t limit;
867#define PF_THRESHOLD_MULT 1000
868#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
869 u_int32_t seconds;
870 u_int32_t count;
871 u_int32_t last;
872};
873
874struct pf_src_node {
875 RB_ENTRY(pf_src_node) entry;
876 struct pf_addr addr;
877 struct pf_addr raddr;
878 union pf_rule_ptr rule;
d1ecb069 879#ifdef KERNEL
b0d623f7 880 struct pfi_kif *kif;
d1ecb069
A		 881#else /* !KERNEL */
882 void *kif;
883#endif /* !KERNEL */
b0d623f7
A		 884 u_int64_t bytes[2];
885 u_int64_t packets[2];
886 u_int32_t states;
887 u_int32_t conn;
888 struct pf_threshold conn_rate;
889 u_int64_t creation;
890 u_int64_t expire;
891 sa_family_t af;
892 u_int8_t ruletype;
893};
894
895#define PFSNODE_HIWAT 10000 /* default source node table size */
896
d1ecb069 897#ifdef KERNEL
b0d623f7
A		 898struct pf_state_scrub {
899 struct timeval pfss_last; /* time received last packet */
900 u_int32_t pfss_tsecr; /* last echoed timestamp */
901 u_int32_t pfss_tsval; /* largest timestamp */
902 u_int32_t pfss_tsval0; /* original timestamp */
903 u_int16_t pfss_flags;
904#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
905#define PFSS_PAWS 0x0010 /* stricter PAWS checks */
906#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
907#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
908#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
909 u_int8_t pfss_ttl; /* stashed TTL */
910 u_int8_t pad;
911 u_int32_t pfss_ts_mod; /* timestamp modulation */
912};
d1ecb069 913#endif /* KERNEL */
b0d623f7 914
b0d623f7
A		 915union pf_state_xport {
916 u_int16_t port;
917 u_int16_t call_id;
918 u_int32_t spi;
919};
920
921struct pf_state_host {
316670eb 922 struct pf_addr addr;
b0d623f7
A		 923 union pf_state_xport xport;
924};
b0d623f7 925
d1ecb069 926#ifdef KERNEL
b0d623f7
A		 927struct pf_state_peer {
928 u_int32_t seqlo; /* Max sequence number sent */
929 u_int32_t seqhi; /* Max the other end ACKd + win */
930 u_int32_t seqdiff; /* Sequence number modulator */
931 u_int16_t max_win; /* largest window (pre scaling) */
932 u_int8_t state; /* active state level */
933 u_int8_t wscale; /* window scaling factor */
934 u_int16_t mss; /* Maximum segment size option */
935 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
936 struct pf_state_scrub *scrub; /* state is scrubbed */
937 u_int8_t pad[3];
938};
939
940TAILQ_HEAD(pf_state_queue, pf_state);
941
b0d623f7
A		 942struct pf_state;
943struct pf_pdesc;
944struct pf_app_state;
945
946typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *,
947 struct pfi_kif *);
948
949typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *);
950
951struct pf_pptp_state {
952 struct pf_state *grev1_state;
953};
954
d1ecb069
A		 955struct pf_grev1_state {
956 struct pf_state *pptp_state;
957};
958
b0d623f7
A		 959struct pf_ike_state {
960 u_int64_t cookie;
961};
962
963struct pf_app_state {
964 pf_app_handler handler;
965 pf_app_compare compare_lan_ext;
966 pf_app_compare compare_ext_gwy;
967 union {
968 struct pf_pptp_state pptp;
d1ecb069 969 struct pf_grev1_state grev1;
b0d623f7
A		 970 struct pf_ike_state ike;
971 } u;
972};
b0d623f7
A		 973
974/* keep synced with struct pf_state, used in RB_FIND */
975struct pf_state_key_cmp {
976 struct pf_state_host lan;
977 struct pf_state_host gwy;
978 struct pf_state_host ext;
979 sa_family_t af;
980 u_int8_t proto;
981 u_int8_t direction;
b0d623f7
A		 982 u_int8_t proto_variant;
983 struct pf_app_state *app_state;
b0d623f7
A		 984};
985
986TAILQ_HEAD(pf_statelist, pf_state);
987
988struct pf_state_key {
989 struct pf_state_host lan;
990 struct pf_state_host gwy;
991 struct pf_state_host ext;
992 sa_family_t af;
993 u_int8_t proto;
994 u_int8_t direction;
b0d623f7
A		 995 u_int8_t proto_variant;
996 struct pf_app_state *app_state;
316670eb 997 u_int32_t flowhash;
b0d623f7
A		 998
999 RB_ENTRY(pf_state_key) entry_lan_ext;
1000 RB_ENTRY(pf_state_key) entry_ext_gwy;
1001 struct pf_statelist states;
316670eb 1002 u_int32_t refcnt;
b0d623f7
A		 1003};
1004
1005
1006/* keep synced with struct pf_state, used in RB_FIND */
1007struct pf_state_cmp {
1008 u_int64_t id;
1009 u_int32_t creatorid;
1010 u_int32_t pad;
1011};
316670eb
A		 1012
1013/* flowhash key (12-bytes multiple for performance) */
1014struct pf_flowhash_key {
1015 struct pf_state_host ap1; /* address+port blob 1 */
1016 struct pf_state_host ap2; /* address+port blob 2 */
1017 u_int32_t af;
1018 u_int32_t proto;
1019};
d1ecb069 1020#endif /* KERNEL */
b0d623f7
A		 1021
1022struct hook_desc;
1023TAILQ_HEAD(hook_desc_head, hook_desc);
1024
d1ecb069 1025#ifdef KERNEL
b0d623f7
A		 1026struct pf_state {
1027 u_int64_t id;
1028 u_int32_t creatorid;
1029 u_int32_t pad;
1030
1031 TAILQ_ENTRY(pf_state) entry_list;
1032 TAILQ_ENTRY(pf_state) next;
1033 RB_ENTRY(pf_state) entry_id;
1034 struct pf_state_peer src;
1035 struct pf_state_peer dst;
1036 union pf_rule_ptr rule;
1037 union pf_rule_ptr anchor;
1038 union pf_rule_ptr nat_rule;
1039 struct pf_addr rt_addr;
316670eb 1040 struct hook_desc_head unlink_hooks;
b0d623f7
A		 1041 struct pf_state_key *state_key;
1042 struct pfi_kif *kif;
1043 struct pfi_kif *rt_kif;
1044 struct pf_src_node *src_node;
1045 struct pf_src_node *nat_src_node;
1046 u_int64_t packets[2];
1047 u_int64_t bytes[2];
1048 u_int64_t creation;
1049 u_int64_t expire;
1050 u_int64_t pfsync_time;
1051 u_int16_t tag;
1052 u_int8_t log;
1053 u_int8_t allow_opts;
1054 u_int8_t timeout;
1055 u_int8_t sync_flags;
d1ecb069
A		 1056};
1057#endif /* KERNEL */
1058
b0d623f7
A		 1059#define PFSTATE_NOSYNC 0x01
1060#define PFSTATE_FROMSYNC 0x02
1061#define PFSTATE_STALE 0x04
b0d623f7
A		 1062
1063#define __packed __attribute__((__packed__))
1064
1065/*
1066 * Unified state structures for pulling states out of the kernel
1067 * used by pfsync(4) and the pf(4) ioctl.
1068 */
1069struct pfsync_state_scrub {
1070 u_int16_t pfss_flags;
1071 u_int8_t pfss_ttl; /* stashed TTL */
1072#define PFSYNC_SCRUB_FLAG_VALID 0x01
1073 u_int8_t scrub_flag;
1074 u_int32_t pfss_ts_mod; /* timestamp modulation */
1075} __packed;
1076
1077struct pfsync_state_host {
316670eb 1078 struct pf_addr addr;
b0d623f7 1079 union pf_state_xport xport;
316670eb 1080 u_int16_t pad[2];
b0d623f7
A		 1081} __packed;
1082
1083struct pfsync_state_peer {
1084 struct pfsync_state_scrub scrub; /* state is scrubbed */
1085 u_int32_t seqlo; /* Max sequence number sent */
1086 u_int32_t seqhi; /* Max the other end ACKd + win */
1087 u_int32_t seqdiff; /* Sequence number modulator */
1088 u_int16_t max_win; /* largest window (pre scaling) */
1089 u_int16_t mss; /* Maximum segment size option */
1090 u_int8_t state; /* active state level */
1091 u_int8_t wscale; /* window scaling factor */
1092 u_int8_t pad[6];
1093} __packed;
1094
1095struct pfsync_state {
1096 u_int32_t id[2];
1097 char ifname[IFNAMSIZ];
1098 struct pfsync_state_host lan;
1099 struct pfsync_state_host gwy;
1100 struct pfsync_state_host ext;
1101 struct pfsync_state_peer src;
1102 struct pfsync_state_peer dst;
1103 struct pf_addr rt_addr;
b0d623f7
A		 1104 struct hook_desc_head unlink_hooks;
1105#if !defined(__LP64__)
1106 u_int32_t _pad[2];
1107#endif /* !__LP64__ */
b0d623f7
A		 1108 u_int32_t rule;
1109 u_int32_t anchor;
1110 u_int32_t nat_rule;
1111 u_int64_t creation;
1112 u_int64_t expire;
1113 u_int32_t packets[2][2];
1114 u_int32_t bytes[2][2];
1115 u_int32_t creatorid;
316670eb 1116 u_int16_t tag;
b0d623f7
A		 1117 sa_family_t af;
1118 u_int8_t proto;
1119 u_int8_t direction;
1120 u_int8_t log;
1121 u_int8_t allow_opts;
1122 u_int8_t timeout;
1123 u_int8_t sync_flags;
1124 u_int8_t updates;
b0d623f7 1125 u_int8_t proto_variant;
316670eb
A		 1126 u_int8_t __pad;
1127 u_int32_t flowhash;
b0d623f7
A		 1128} __packed;
1129
1130#define PFSYNC_FLAG_COMPRESS 0x01
1131#define PFSYNC_FLAG_STALE 0x02
1132#define PFSYNC_FLAG_SRCNODE 0x04
1133#define PFSYNC_FLAG_NATSRCNODE 0x08
1134
d1ecb069 1135#ifdef KERNEL
b0d623f7
A		 1136/* for copies to/from userland via pf_ioctl() */
1137#define pf_state_peer_to_pfsync(s, d) do { \
1138 (d)->seqlo = (s)->seqlo; \
1139 (d)->seqhi = (s)->seqhi; \
1140 (d)->seqdiff = (s)->seqdiff; \
1141 (d)->max_win = (s)->max_win; \
1142 (d)->mss = (s)->mss; \
1143 (d)->state = (s)->state; \
1144 (d)->wscale = (s)->wscale; \
1145 if ((s)->scrub) { \
1146 (d)->scrub.pfss_flags = \
1147 (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \
1148 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
1149 (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \
1150 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
1151 } \
1152} while (0)
1153
1154#define pf_state_peer_from_pfsync(s, d) do { \
1155 (d)->seqlo = (s)->seqlo; \
1156 (d)->seqhi = (s)->seqhi; \
1157 (d)->seqdiff = (s)->seqdiff; \
1158 (d)->max_win = (s)->max_win; \
1159 (d)->mss = ntohs((s)->mss); \
1160 (d)->state = (s)->state; \
1161 (d)->wscale = (s)->wscale; \
1162 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1163 (d)->scrub != NULL) { \
1164 (d)->scrub->pfss_flags = \
1165 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1166 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1167 (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \
1168 } \
1169} while (0)
d1ecb069 1170#endif /* KERNEL */
b0d623f7
A		 1171
1172#define pf_state_counter_to_pfsync(s, d) do { \
1173 d[0] = (s>>32)&0xffffffff; \
1174 d[1] = s&0xffffffff; \
1175} while (0)
1176
1177#define pf_state_counter_from_pfsync(s) \
1178 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1179
1180
1181
1182TAILQ_HEAD(pf_rulequeue, pf_rule);
1183
1184struct pf_anchor;
1185
1186struct pf_ruleset {
1187 struct {
1188 struct pf_rulequeue queues[2];
1189 struct {
1190 struct pf_rulequeue *ptr;
1191 struct pf_rule **ptr_array;
1192 u_int32_t rcount;
1193 u_int32_t ticket;
1194 int open;
1195 } active, inactive;
1196 } rules[PF_RULESET_MAX];
1197 struct pf_anchor *anchor;
1198 u_int32_t tticket;
1199 int tables;
1200 int topen;
1201};
1202
1203RB_HEAD(pf_anchor_global, pf_anchor);
1204RB_HEAD(pf_anchor_node, pf_anchor);
1205struct pf_anchor {
1206 RB_ENTRY(pf_anchor) entry_global;
1207 RB_ENTRY(pf_anchor) entry_node;
1208 struct pf_anchor *parent;
1209 struct pf_anchor_node children;
1210 char name[PF_ANCHOR_NAME_SIZE];
1211 char path[MAXPATHLEN];
1212 struct pf_ruleset ruleset;
1213 int refcnt; /* anchor rules */
1214 int match;
316670eb 1215 char owner[PF_OWNER_NAME_SIZE];
b0d623f7
A		 1216};
1217#ifdef KERNEL
1218RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global,
1219 pf_anchor_compare);
1220RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node,
1221 pf_anchor_compare);
1222#else /* !KERNEL */
1223RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
1224RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
1225#endif /* !KERNEL */
1226
1227#define PF_RESERVED_ANCHOR "_pf"
1228
1229#define PFR_TFLAG_PERSIST 0x00000001
1230#define PFR_TFLAG_CONST 0x00000002
1231#define PFR_TFLAG_ACTIVE 0x00000004
1232#define PFR_TFLAG_INACTIVE 0x00000008
1233#define PFR_TFLAG_REFERENCED 0x00000010
1234#define PFR_TFLAG_REFDANCHOR 0x00000020
1235#define PFR_TFLAG_USRMASK 0x00000003
1236#define PFR_TFLAG_SETMASK 0x0000003C
1237#define PFR_TFLAG_ALLMASK 0x0000003F
1238
1239struct pfr_table {
1240 char pfrt_anchor[MAXPATHLEN];
1241 char pfrt_name[PF_TABLE_NAME_SIZE];
1242 u_int32_t pfrt_flags;
1243 u_int8_t pfrt_fback;
1244};
1245
1246enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1247 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1248 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
1249
1250struct pfr_addr {
1251 union {
1252 struct in_addr _pfra_ip4addr;
1253 struct in6_addr _pfra_ip6addr;
1254 } pfra_u;
1255 u_int8_t pfra_af;
1256 u_int8_t pfra_net;
1257 u_int8_t pfra_not;
1258 u_int8_t pfra_fback;
1259};
1260#define pfra_ip4addr pfra_u._pfra_ip4addr
1261#define pfra_ip6addr pfra_u._pfra_ip6addr
1262
1263enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1264enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1265#define PFR_OP_XPASS PFR_OP_ADDR_MAX
1266
1267struct pfr_astats {
1268 struct pfr_addr pfras_a;
d1ecb069
A		 1269#if !defined(__LP64__)
1270 u_int32_t _pad;
1271#endif /* !__LP64__ */
b0d623f7
A		 1272 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1273 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1274 u_int64_t pfras_tzero;
1275};
1276
1277enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1278
1279struct pfr_tstats {
1280 struct pfr_table pfrts_t;
1281 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1282 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1283 u_int64_t pfrts_match;
1284 u_int64_t pfrts_nomatch;
1285 u_int64_t pfrts_tzero;
1286 int pfrts_cnt;
1287 int pfrts_refcnt[PFR_REFCNT_MAX];
d1ecb069
A		 1288#if !defined(__LP64__)
1289 u_int32_t _pad;
1290#endif /* !__LP64__ */
b0d623f7
A		 1291};
1292#define pfrts_name pfrts_t.pfrt_name
1293#define pfrts_flags pfrts_t.pfrt_flags
1294
d1ecb069 1295#ifdef KERNEL
b0d623f7
A		 1296SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1297struct pfr_kentry {
1298 struct radix_node pfrke_node[2];
1299 union sockaddr_union pfrke_sa;
1300 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1301 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1302 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1303 u_int64_t pfrke_tzero;
1304 u_int8_t pfrke_af;
1305 u_int8_t pfrke_net;
1306 u_int8_t pfrke_not;
1307 u_int8_t pfrke_mark;
1308 u_int8_t pfrke_intrpool;
1309};
1310
1311SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1312RB_HEAD(pfr_ktablehead, pfr_ktable);
1313struct pfr_ktable {
1314 struct pfr_tstats pfrkt_ts;
1315 RB_ENTRY(pfr_ktable) pfrkt_tree;
1316 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1317 struct radix_node_head *pfrkt_ip4;
1318 struct radix_node_head *pfrkt_ip6;
1319 struct pfr_ktable *pfrkt_shadow;
1320 struct pfr_ktable *pfrkt_root;
1321 struct pf_ruleset *pfrkt_rs;
1322 u_int64_t pfrkt_larg;
1323 u_int32_t pfrkt_nflags;
1324};
1325#define pfrkt_t pfrkt_ts.pfrts_t
1326#define pfrkt_name pfrkt_t.pfrt_name
1327#define pfrkt_anchor pfrkt_t.pfrt_anchor
1328#define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1329#define pfrkt_flags pfrkt_t.pfrt_flags
1330#define pfrkt_cnt pfrkt_ts.pfrts_cnt
1331#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1332#define pfrkt_packets pfrkt_ts.pfrts_packets
1333#define pfrkt_bytes pfrkt_ts.pfrts_bytes
1334#define pfrkt_match pfrkt_ts.pfrts_match
1335#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1336#define pfrkt_tzero pfrkt_ts.pfrts_tzero
1337
1338RB_HEAD(pf_state_tree_lan_ext, pf_state_key);
b0d623f7
A		 1339RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key,
1340 entry_lan_ext, pf_state_compare_lan_ext);
b0d623f7
A		 1341
1342RB_HEAD(pf_state_tree_ext_gwy, pf_state_key);
b0d623f7
A		 1343RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key,
1344 entry_ext_gwy, pf_state_compare_ext_gwy);
b0d623f7
A		 1345
1346RB_HEAD(pfi_ifhead, pfi_kif);
1347
1348/* state tables */
b0d623f7
A		 1349__private_extern__ struct pf_state_tree_lan_ext pf_statetbl_lan_ext;
1350__private_extern__ struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy;
b0d623f7
A		 1351
1352/* keep synced with pfi_kif, used in RB_FIND */
1353struct pfi_kif_cmp {
1354 char pfik_name[IFNAMSIZ];
1355};
1356
1357struct pfi_kif {
1358 char pfik_name[IFNAMSIZ];
1359 RB_ENTRY(pfi_kif) pfik_tree;
1360 u_int64_t pfik_packets[2][2][2];
1361 u_int64_t pfik_bytes[2][2][2];
1362 u_int64_t pfik_tzero;
1363 int pfik_flags;
1364 void *pfik_ah_cookie;
1365 struct ifnet *pfik_ifp;
1366 int pfik_states;
1367 int pfik_rules;
1368 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1369};
1370
1371enum pfi_kif_refs {
1372 PFI_KIF_REF_NONE,
1373 PFI_KIF_REF_STATE,
1374 PFI_KIF_REF_RULE
1375};
1376
d1ecb069
A		 1377struct pfi_uif {
1378#else /* !KERNEL */
1379struct pfi_kif {
1380#endif /* !KERNEL */
1381 char pfik_name[IFNAMSIZ];
1382 u_int64_t pfik_packets[2][2][2];
1383 u_int64_t pfik_bytes[2][2][2];
1384 u_int64_t pfik_tzero;
1385 int pfik_flags;
1386 int pfik_states;
1387 int pfik_rules;
1388#if !defined(__LP64__)
1389 u_int32_t _pad;
1390#endif /* !__LP64__ */
1391};
1392
b0d623f7
A		 1393#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1394
1395#ifdef KERNEL
1396struct pf_pdesc {
1397 struct {
1398 int done;
1399 uid_t uid;
1400 gid_t gid;
1401 pid_t pid;
1402 } lookup;
1403 u_int64_t tot_len; /* Make Mickey money */
1404 union {
1405 struct tcphdr *tcp;
1406 struct udphdr *udp;
1407 struct icmp *icmp;
1408#if INET6
1409 struct icmp6_hdr *icmp6;
1410#endif /* INET6 */
316670eb
A		 1411 struct pf_grev1_hdr *grev1;
1412 struct pf_esp_hdr *esp;
b0d623f7
A		 1413 void *any;
1414 } hdr;
1415 struct pf_addr baddr; /* address before translation */
1416 struct pf_addr naddr; /* address after translation */
1417 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1418 struct pf_addr *src;
1419 struct pf_addr *dst;
1420 struct ether_header
1421 *eh;
b0d623f7 1422 struct mbuf *mp;
316670eb 1423 int lmw; /* lazy writable offset */
b0d623f7
A		 1424 struct pf_mtag *pf_mtag;
1425 u_int16_t *ip_sum;
1426 u_int32_t p_len; /* total length of payload */
1427 u_int16_t flags; /* Let SCRUB trigger behavior in */
1428 /* state code. Easier than tags */
1429#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1430#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
316670eb
A		 1431#define PFDESC_FLOW_ADV 0x0004 /* sender can use flow advisory */
1432#define PFDESC_IP_FRAG 0x0008 /* This is a fragment */
b0d623f7
A		 1433 sa_family_t af;
1434 u_int8_t proto;
1435 u_int8_t tos;
b0d623f7 1436 u_int8_t proto_variant;
316670eb
A		 1437 mbuf_svc_class_t sc;
1438 u_int32_t flowhash; /* flow hash to identify the sender */
b0d623f7
A		 1439};
1440#endif /* KERNEL */
1441
1442/* flags for RDR options */
1443#define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1444#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1445
1446/* Reasons code for passing/dropping a packet */
1447#define PFRES_MATCH 0 /* Explicit match of a rule */
1448#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1449#define PFRES_FRAG 2 /* Dropping following fragment */
1450#define PFRES_SHORT 3 /* Dropping short packet */
1451#define PFRES_NORM 4 /* Dropping by normalizer */
1452#define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1453#define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1454#define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1455#define PFRES_IPOPTIONS 8 /* IP option */
1456#define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1457#define PFRES_BADSTATE 10 /* State mismatch */
1458#define PFRES_STATEINS 11 /* State insertion failure */
1459#define PFRES_MAXSTATES 12 /* State limit */
1460#define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1461#define PFRES_SYNPROXY 14 /* SYN proxy */
316670eb
A		 1462#define PFRES_DUMMYNET 15 /* Dummynet */
1463#define PFRES_MAX 16 /* total+1 */
b0d623f7
A		 1464
1465#define PFRES_NAMES { \
1466 "match", \
1467 "bad-offset", \
1468 "fragment", \
1469 "short", \
1470 "normalize", \
1471 "memory", \
1472 "bad-timestamp", \
1473 "congestion", \
1474 "ip-option", \
1475 "proto-cksum", \
1476 "state-mismatch", \
1477 "state-insert", \
1478 "state-limit", \
1479 "src-limit", \
1480 "synproxy", \
316670eb 1481 "dummynet", \
b0d623f7
A		 1482 NULL \
1483}
1484
1485/* Counters for other things we want to keep track of */
1486#define LCNT_STATES 0 /* states */
1487#define LCNT_SRCSTATES 1 /* max-src-states */
1488#define LCNT_SRCNODES 2 /* max-src-nodes */
1489#define LCNT_SRCCONN 3 /* max-src-conn */
1490#define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1491#define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1492#define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1493#define LCNT_MAX 7 /* total+1 */
1494
1495#define LCNT_NAMES { \
1496 "max states per rule", \
1497 "max-src-states", \
1498 "max-src-nodes", \
1499 "max-src-conn", \
1500 "max-src-conn-rate", \
1501 "overload table insertion", \
1502 "overload flush states", \
1503 NULL \
1504}
1505
1506/* UDP state enumeration */
1507#define PFUDPS_NO_TRAFFIC 0
1508#define PFUDPS_SINGLE 1
1509#define PFUDPS_MULTIPLE 2
1510
1511#define PFUDPS_NSTATES 3 /* number of state levels */
1512
1513#define PFUDPS_NAMES { \
1514 "NO_TRAFFIC", \
1515 "SINGLE", \
1516 "MULTIPLE", \
1517 NULL \
1518}
1519
b0d623f7
A		 1520/* GREv1 protocol state enumeration */
1521#define PFGRE1S_NO_TRAFFIC 0
1522#define PFGRE1S_INITIATING 1
1523#define PFGRE1S_ESTABLISHED 2
1524
1525#define PFGRE1S_NSTATES 3 /* number of state levels */
1526
1527#define PFGRE1S_NAMES { \
1528 "NO_TRAFFIC", \
1529 "INITIATING", \
1530 "ESTABLISHED", \
1531 NULL \
1532}
1533
1534#define PFESPS_NO_TRAFFIC 0
1535#define PFESPS_INITIATING 1
1536#define PFESPS_ESTABLISHED 2
1537
1538#define PFESPS_NSTATES 3 /* number of state levels */
1539
1540#define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL }
b0d623f7
A		 1541
1542/* Other protocol state enumeration */
1543#define PFOTHERS_NO_TRAFFIC 0
1544#define PFOTHERS_SINGLE 1
1545#define PFOTHERS_MULTIPLE 2
1546
1547#define PFOTHERS_NSTATES 3 /* number of state levels */
1548
1549#define PFOTHERS_NAMES { \
1550 "NO_TRAFFIC", \
1551 "SINGLE", \
1552 "MULTIPLE", \
1553 NULL \
1554}
1555
1556#define FCNT_STATE_SEARCH 0
1557#define FCNT_STATE_INSERT 1
1558#define FCNT_STATE_REMOVALS 2
1559#define FCNT_MAX 3
1560
1561#define SCNT_SRC_NODE_SEARCH 0
1562#define SCNT_SRC_NODE_INSERT 1
1563#define SCNT_SRC_NODE_REMOVALS 2
1564#define SCNT_MAX 3
1565
d1ecb069 1566#ifdef KERNEL
b0d623f7
A		 1567#define ACTION_SET(a, x) \
1568 do { \
1569 if ((a) != NULL) \
1570 *(a) = (x); \
1571 } while (0)
1572
1573#define REASON_SET(a, x) \
1574 do { \
1575 if ((a) != NULL) \
1576 *(a) = (x); \
1577 if (x < PFRES_MAX) \
1578 pf_status.counters[x]++; \
1579 } while (0)
d1ecb069 1580#endif /* KERNEL */
b0d623f7
A		 1581
1582struct pf_status {
1583 u_int64_t counters[PFRES_MAX];
1584 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1585 u_int64_t fcounters[FCNT_MAX];
1586 u_int64_t scounters[SCNT_MAX];
1587 u_int64_t pcounters[2][2][3];
1588 u_int64_t bcounters[2][2];
1589 u_int64_t stateid;
1590 u_int32_t running;
1591 u_int32_t states;
1592 u_int32_t src_nodes;
1593 u_int64_t since __attribute__((aligned(8)));
1594 u_int32_t debug;
1595 u_int32_t hostid;
1596 char ifname[IFNAMSIZ];
1597 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1598};
1599
1600struct cbq_opts {
316670eb
A		 1601 u_int32_t minburst;
1602 u_int32_t maxburst;
1603 u_int32_t pktsize;
1604 u_int32_t maxpktsize;
1605 u_int32_t ns_per_byte;
1606 u_int32_t maxidle;
1607 int32_t minidle;
1608 u_int32_t offtime;
1609 u_int32_t flags;
b0d623f7
A		 1610};
1611
1612struct priq_opts {
316670eb
A		 1613 u_int32_t flags;
1614};
1615
1616struct qfq_opts {
1617 u_int32_t flags;
1618 u_int32_t lmax;
b0d623f7
A		 1619};
1620
1621struct hfsc_opts {
1622 /* real-time service curve */
316670eb
A		 1623 u_int64_t rtsc_m1; /* slope of the 1st segment in bps */
1624 u_int64_t rtsc_d; /* the x-projection of m1 in msec */
1625 u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */
1626 u_int32_t rtsc_fl; /* service curve flags */
1627#if !defined(__LP64__)
1628 u_int32_t _pad;
1629#endif /* !__LP64__ */
b0d623f7 1630 /* link-sharing service curve */
316670eb
A		 1631 u_int64_t lssc_m1;
1632 u_int64_t lssc_d;
1633 u_int64_t lssc_m2;
1634 u_int32_t lssc_fl;
1635#if !defined(__LP64__)
1636 u_int32_t __pad;
1637#endif /* !__LP64__ */
b0d623f7 1638 /* upper-limit service curve */
316670eb
A		 1639 u_int64_t ulsc_m1;
1640 u_int64_t ulsc_d;
1641 u_int64_t ulsc_m2;
1642 u_int32_t ulsc_fl;
1643 u_int32_t flags; /* scheduler flags */
b0d623f7
A		 1644};
1645
316670eb
A		 1646struct fairq_opts {
1647 u_int32_t nbuckets; /* hash buckets */
1648 u_int32_t flags;
1649 u_int64_t hogs_m1; /* hog detection bandwidth */
1650
1651 /* link-sharing service curve */
1652 u_int64_t lssc_m1;
1653 u_int64_t lssc_d;
1654 u_int64_t lssc_m2;
1655};
1656
1657/* bandwidth types */
1658#define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */
1659#define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */
1660
1661/* ALTQ rule flags */
1662#define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */
1663
1664/* queue rule flags */
1665#define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */
1666
b0d623f7
A		 1667struct pf_altq {
1668 char ifname[IFNAMSIZ];
1669
316670eb
A		 1670 /* discipline-specific state */
1671 void *altq_disc __attribute__((aligned(8)));
1672 TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8)));
b0d623f7 1673#if !defined(__LP64__)
316670eb 1674 u_int32_t _pad[2];
b0d623f7
A		 1675#endif /* !__LP64__ */
1676
316670eb
A		 1677 u_int32_t aflags; /* ALTQ rule flags */
1678 u_int32_t bwtype; /* bandwidth type */
1679
b0d623f7 1680 /* scheduler spec */
316670eb
A		 1681 u_int32_t scheduler; /* scheduler type */
1682 u_int32_t tbrsize; /* tokenbucket regulator size */
1683 u_int64_t ifbandwidth; /* interface bandwidth */
b0d623f7
A		 1684
1685 /* queue spec */
1686 char qname[PF_QNAME_SIZE]; /* queue name */
1687 char parent[PF_QNAME_SIZE]; /* parent name */
1688 u_int32_t parent_qid; /* parent queue id */
316670eb
A		 1689 u_int32_t qrflags; /* queue rule flags */
1690 union {
1691 u_int32_t priority; /* priority */
1692 u_int32_t weight; /* weight */
1693 };
1694 u_int32_t qlimit; /* queue size limit */
1695 u_int32_t flags; /* misc flags */
1696#if !defined(__LP64__)
1697 u_int32_t __pad;
1698#endif /* !__LP64__ */
1699 u_int64_t bandwidth; /* queue bandwidth */
b0d623f7
A		 1700 union {
1701 struct cbq_opts cbq_opts;
1702 struct priq_opts priq_opts;
1703 struct hfsc_opts hfsc_opts;
316670eb
A		 1704 struct fairq_opts fairq_opts;
1705 struct qfq_opts qfq_opts;
b0d623f7
A		 1706 } pq_u;
1707
1708 u_int32_t qid; /* return value */
1709};
1710
1711struct pf_tagname {
1712 TAILQ_ENTRY(pf_tagname) entries;
1713 char name[PF_TAG_NAME_SIZE];
1714 u_int16_t tag;
1715 int ref;
1716};
1717
1718#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1719#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1720#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1721#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1722
1723#define PFR_KTABLE_HIWAT 1000 /* Number of tables */
1724#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1725#define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
1726
1727/*
1728 * ioctl parameter structures
1729 */
1730
1731struct pfioc_pooladdr {
1732 u_int32_t action;
1733 u_int32_t ticket;
1734 u_int32_t nr;
1735 u_int32_t r_num;
1736 u_int8_t r_action;
1737 u_int8_t r_last;
1738 u_int8_t af;
1739 char anchor[MAXPATHLEN];
1740 struct pf_pooladdr addr;
1741};
1742
1743struct pfioc_rule {
1744 u_int32_t action;
1745 u_int32_t ticket;
1746 u_int32_t pool_ticket;
1747 u_int32_t nr;
1748 char anchor[MAXPATHLEN];
1749 char anchor_call[MAXPATHLEN];
1750 struct pf_rule rule;
1751};
1752
1753struct pfioc_natlook {
1754 struct pf_addr saddr;
1755 struct pf_addr daddr;
1756 struct pf_addr rsaddr;
1757 struct pf_addr rdaddr;
b0d623f7
A		 1758 union pf_state_xport sxport;
1759 union pf_state_xport dxport;
1760 union pf_state_xport rsxport;
1761 union pf_state_xport rdxport;
1762 sa_family_t af;
1763 u_int8_t proto;
1764 u_int8_t proto_variant;
1765 u_int8_t direction;
b0d623f7
A		 1766};
1767
1768struct pfioc_state {
1769 struct pfsync_state state;
1770};
1771
1772struct pfioc_src_node_kill {
1773 /* XXX returns the number of src nodes killed in psnk_af */
1774 sa_family_t psnk_af;
1775 struct pf_rule_addr psnk_src;
1776 struct pf_rule_addr psnk_dst;
1777};
1778
b0d623f7
A		 1779struct pfioc_state_addr_kill {
1780 struct pf_addr_wrap addr;
1781 u_int8_t reserved_[3];
1782 u_int8_t neg;
1783 union pf_rule_xport xport;
1784};
b0d623f7
A		 1785
1786struct pfioc_state_kill {
1787 /* XXX returns the number of states killed in psk_af */
1788 sa_family_t psk_af;
b0d623f7
A		 1789 u_int8_t psk_proto;
1790 u_int8_t psk_proto_variant;
1791 u_int8_t _pad;
1792 struct pfioc_state_addr_kill psk_src;
1793 struct pfioc_state_addr_kill psk_dst;
b0d623f7
A		 1794 char psk_ifname[IFNAMSIZ];
1795};
1796
1797struct pfioc_states {
1798 int ps_len;
1799 union {
1800 caddr_t psu_buf;
1801 struct pfsync_state *psu_states;
1802 } ps_u __attribute__((aligned(8)));
1803#define ps_buf ps_u.psu_buf
1804#define ps_states ps_u.psu_states
1805};
1806
d1ecb069
A		 1807#ifdef KERNEL
1808struct pfioc_states_32 {
1809 int ps_len;
1810 union {
1811 user32_addr_t psu_buf;
1812 user32_addr_t psu_states;
1813 } ps_u __attribute__((aligned(8)));
1814};
1815
1816struct pfioc_states_64 {
1817 int ps_len;
1818 union {
1819 user64_addr_t psu_buf;
1820 user64_addr_t psu_states;
1821 } ps_u __attribute__((aligned(8)));
1822};
1823#endif /* KERNEL */
1824
6d2010ae
A		 1825#define PFTOK_PROCNAME_LEN 64
1826#pragma pack(1)
1827struct pfioc_token {
1828 u_int64_t token_value;
1829 u_int64_t timestamp;
1830 pid_t pid;
1831 char proc_name[PFTOK_PROCNAME_LEN];
1832};
1833#pragma pack()
1834
1835struct pfioc_kernel_token {
1836 SLIST_ENTRY(pfioc_kernel_token) next;
1837 struct pfioc_token token;
1838};
1839
1840struct pfioc_remove_token {
1841 u_int64_t token_value;
1842 u_int64_t refcount;
1843};
1844
1845struct pfioc_tokens {
1846 int size;
1847 union {
1848 caddr_t pgtu_buf;
1849 struct pfioc_token *pgtu_tokens;
1850 } pgt_u __attribute__((aligned(8)));
1851#define pgt_buf pgt_u.pgtu_buf
1852#define pgt_tokens pgt_u.pgtu_tokens
1853};
1854
1855#ifdef KERNEL
1856struct pfioc_tokens_32 {
1857 int size;
1858 union {
1859 user32_addr_t pgtu_buf;
1860 user32_addr_t pgtu_tokens;
1861 } pgt_u __attribute__((aligned(8)));
1862};
1863
1864struct pfioc_tokens_64 {
1865 int size;
1866 union {
1867 user64_addr_t pgtu_buf;
1868 user64_addr_t pgtu_tokens;
1869 } pgt_u __attribute__((aligned(8)));
1870};
1871#endif /* KERNEL */
1872
1873
b0d623f7
A		 1874struct pfioc_src_nodes {
1875 int psn_len;
1876 union {
d1ecb069 1877 caddr_t psu_buf;
b0d623f7
A		 1878 struct pf_src_node *psu_src_nodes;
1879 } psn_u __attribute__((aligned(8)));
1880#define psn_buf psn_u.psu_buf
1881#define psn_src_nodes psn_u.psu_src_nodes
1882};
1883
d1ecb069
A		 1884#ifdef KERNEL
1885struct pfioc_src_nodes_32 {
1886 int psn_len;
1887 union {
1888 user32_addr_t psu_buf;
1889 user32_addr_t psu_src_nodes;
1890 } psn_u __attribute__((aligned(8)));
1891};
1892
1893struct pfioc_src_nodes_64 {
1894 int psn_len;
1895 union {
1896 user64_addr_t psu_buf;
1897 user64_addr_t psu_src_nodes;
1898 } psn_u __attribute__((aligned(8)));
1899};
1900#endif /* KERNEL */
1901
b0d623f7
A		 1902struct pfioc_if {
1903 char ifname[IFNAMSIZ];
1904};
1905
1906struct pfioc_tm {
1907 int timeout;
1908 int seconds;
1909};
1910
1911struct pfioc_limit {
1912 int index;
1913 unsigned limit;
1914};
1915
1916struct pfioc_altq {
1917 u_int32_t action;
1918 u_int32_t ticket;
1919 u_int32_t nr;
1920 struct pf_altq altq __attribute__((aligned(8)));
1921};
1922
1923struct pfioc_qstats {
1924 u_int32_t ticket;
1925 u_int32_t nr;
1926 void *buf __attribute__((aligned(8)));
1927 int nbytes __attribute__((aligned(8)));
1928 u_int8_t scheduler;
1929};
1930
1931struct pfioc_ruleset {
1932 u_int32_t nr;
1933 char path[MAXPATHLEN];
1934 char name[PF_ANCHOR_NAME_SIZE];
1935};
1936
1937#define PF_RULESET_ALTQ (PF_RULESET_MAX)
1938#define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1939struct pfioc_trans {
1940 int size; /* number of elements */
1941 int esize; /* size of each element in bytes */
1942 struct pfioc_trans_e {
1943 int rs_num;
1944 char anchor[MAXPATHLEN];
1945 u_int32_t ticket;
d1ecb069
A		 1946 } *array __attribute__((aligned(8)));
1947};
1948
1949#ifdef KERNEL
1950struct pfioc_trans_32 {
1951 int size; /* number of elements */
1952 int esize; /* size of each element in bytes */
1953 user32_addr_t array __attribute__((aligned(8)));
1954};
1955
1956struct pfioc_trans_64 {
1957 int size; /* number of elements */
1958 int esize; /* size of each element in bytes */
1959 user64_addr_t array __attribute__((aligned(8)));
b0d623f7 1960};
d1ecb069 1961#endif /* KERNEL */
b0d623f7 1962
6d2010ae 1963
b0d623f7
A		 1964#define PFR_FLAG_ATOMIC 0x00000001
1965#define PFR_FLAG_DUMMY 0x00000002
1966#define PFR_FLAG_FEEDBACK 0x00000004
1967#define PFR_FLAG_CLSTATS 0x00000008
1968#define PFR_FLAG_ADDRSTOO 0x00000010
1969#define PFR_FLAG_REPLACE 0x00000020
1970#define PFR_FLAG_ALLRSETS 0x00000040
1971#define PFR_FLAG_ALLMASK 0x0000007F
1972#ifdef KERNEL
1973#define PFR_FLAG_USERIOCTL 0x10000000
d1ecb069 1974#endif /* KERNEL */
b0d623f7
A		 1975
1976struct pfioc_table {
1977 struct pfr_table pfrio_table;
1978 void *pfrio_buffer __attribute__((aligned(8)));
1979 int pfrio_esize __attribute__((aligned(8)));
1980 int pfrio_size;
1981 int pfrio_size2;
1982 int pfrio_nadd;
1983 int pfrio_ndel;
1984 int pfrio_nchange;
1985 int pfrio_flags;
1986 u_int32_t pfrio_ticket;
1987};
1988#define pfrio_exists pfrio_nadd
1989#define pfrio_nzero pfrio_nadd
1990#define pfrio_nmatch pfrio_nadd
1991#define pfrio_naddr pfrio_size2
1992#define pfrio_setflag pfrio_size2
1993#define pfrio_clrflag pfrio_nadd
1994
d1ecb069
A		 1995#ifdef KERNEL
1996struct pfioc_table_32 {
1997 struct pfr_table pfrio_table;
1998 user32_addr_t pfrio_buffer __attribute__((aligned(8)));
1999 int pfrio_esize __attribute__((aligned(8)));
2000 int pfrio_size;
2001 int pfrio_size2;
2002 int pfrio_nadd;
2003 int pfrio_ndel;
2004 int pfrio_nchange;
2005 int pfrio_flags;
2006 u_int32_t pfrio_ticket;
2007};
2008
2009struct pfioc_table_64 {
2010 struct pfr_table pfrio_table;
2011 user64_addr_t pfrio_buffer __attribute__((aligned(8)));
2012 int pfrio_esize __attribute__((aligned(8)));
2013 int pfrio_size;
2014 int pfrio_size2;
2015 int pfrio_nadd;
2016 int pfrio_ndel;
2017 int pfrio_nchange;
2018 int pfrio_flags;
2019 u_int32_t pfrio_ticket;
2020};
2021#endif /* KERNEL */
2022
b0d623f7
A		 2023struct pfioc_iface {
2024 char pfiio_name[IFNAMSIZ];
2025 void *pfiio_buffer __attribute__((aligned(8)));
2026 int pfiio_esize __attribute__((aligned(8)));
2027 int pfiio_size;
2028 int pfiio_nzero;
2029 int pfiio_flags;
2030};
2031
d1ecb069
A		 2032#ifdef KERNEL
2033struct pfioc_iface_32 {
2034 char pfiio_name[IFNAMSIZ];
2035 user32_addr_t pfiio_buffer __attribute__((aligned(8)));
2036 int pfiio_esize __attribute__((aligned(8)));
2037 int pfiio_size;
2038 int pfiio_nzero;
2039 int pfiio_flags;
2040};
2041
2042struct pfioc_iface_64 {
2043 char pfiio_name[IFNAMSIZ];
2044 user64_addr_t pfiio_buffer __attribute__((aligned(8)));
2045 int pfiio_esize __attribute__((aligned(8)));
2046 int pfiio_size;
2047 int pfiio_nzero;
2048 int pfiio_flags;
2049};
2050#endif /* KERNEL */
b0d623f7 2051
316670eb
A		 2052struct pf_ifspeed {
2053 char ifname[IFNAMSIZ];
2054 u_int64_t baudrate;
2055};
2056
b0d623f7
A		 2057/*
2058 * ioctl operations
2059 */
2060
2061#define DIOCSTART _IO ('D', 1)
2062#define DIOCSTOP _IO ('D', 2)
2063#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
6d2010ae 2064#define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens)
b0d623f7
A		 2065#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
2066#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
6d2010ae
A		 2067#define DIOCSTARTREF _IOR ('D', 8, u_int64_t)
2068#define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token)
2069/* XXX cut 10 - 17 */
b0d623f7
A		 2070#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
2071#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
6d2010ae 2072#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
b0d623f7
A		 2073#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
2074#define DIOCCLRSTATUS _IO ('D', 22)
2075#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
2076#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
2077#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
2078#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
316670eb
A		 2079#define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule)
2080#define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule)
b0d623f7
A		 2081#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
2082#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
2083#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
2084#define DIOCCLRRULECTRS _IO ('D', 38)
2085#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
2086#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
2087#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
2088#define DIOCSTARTALTQ _IO ('D', 42)
2089#define DIOCSTOPALTQ _IO ('D', 43)
2090#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
2091#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
2092#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
2093#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
2094#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
2095#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
2096#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
2097#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
2098#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
2099#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
2100/* XXX cut 55 - 57 */
2101#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
2102#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
2103#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
2104#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
2105#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
2106#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
2107#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
6d2010ae 2108#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
b0d623f7
A		 2109#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
2110#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
2111#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
2112#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
2113#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
2114#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
6d2010ae 2115#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
b0d623f7
A		 2116#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
2117#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
2118#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
2119#define DIOCOSFPFLUSH _IO('D', 78)
2120#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
2121#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
6d2010ae
A		 2122#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
2123#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
2124#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
b0d623f7
A		 2125#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
2126#define DIOCCLRSRCNODES _IO('D', 85)
2127#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
2128#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
2129#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
2130#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
316670eb
A		 2131#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
2132#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
b0d623f7
A		 2133
2134#ifdef KERNEL
2135RB_HEAD(pf_src_tree, pf_src_node);
2136RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry,
2137 pf_src_compare);
2138__private_extern__ struct pf_src_tree tree_src_tracking;
2139
2140RB_HEAD(pf_state_tree_id, pf_state);
2141RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state,
2142 entry_id, pf_state_compare_id);
2143__private_extern__ struct pf_state_tree_id tree_id;
2144__private_extern__ struct pf_state_queue state_list;
2145
2146TAILQ_HEAD(pf_poolqueue, pf_pool);
2147__private_extern__ struct pf_poolqueue pf_pools[2];
2148__private_extern__ struct pf_palist pf_pabuf;
2149__private_extern__ u_int32_t ticket_pabuf;
316670eb 2150#if PF_ALTQ
b0d623f7
A		 2151TAILQ_HEAD(pf_altqqueue, pf_altq);
2152__private_extern__ struct pf_altqqueue pf_altqs[2];
2153__private_extern__ u_int32_t ticket_altqs_active;
2154__private_extern__ u_int32_t ticket_altqs_inactive;
2155__private_extern__ int altqs_inactive_open;
2156__private_extern__ struct pf_altqqueue *pf_altqs_active;
2157__private_extern__ struct pf_altqqueue *pf_altqs_inactive;
316670eb 2158#endif /* PF_ALTQ */
b0d623f7
A		 2159__private_extern__ struct pf_poolqueue *pf_pools_active;
2160__private_extern__ struct pf_poolqueue *pf_pools_inactive;
2161
2162__private_extern__ int pf_tbladdr_setup(struct pf_ruleset *,
2163 struct pf_addr_wrap *);
2164__private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *);
2165__private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *);
2166__private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *);
316670eb 2167__private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *);
b0d623f7
A		 2168
2169__private_extern__ struct pool pf_src_tree_pl, pf_rule_pl;
2170__private_extern__ struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl;
2171__private_extern__ struct pool pf_state_scrub_pl;
316670eb 2172#if PF_ALTQ
b0d623f7 2173__private_extern__ struct pool pf_altq_pl;
316670eb 2174#endif /* PF_ALTQ */
b0d623f7 2175__private_extern__ struct pool pf_app_state_pl;
b0d623f7
A		 2176
2177__private_extern__ struct thread *pf_purge_thread;
2178
2179__private_extern__ void pfinit(void);
2180__private_extern__ void pf_purge_thread_fn(void *, wait_result_t);
2181__private_extern__ void pf_purge_expired_src_nodes(void);
2182__private_extern__ void pf_purge_expired_states(u_int32_t);
2183__private_extern__ void pf_unlink_state(struct pf_state *);
2184__private_extern__ void pf_free_state(struct pf_state *);
2185__private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *);
2186__private_extern__ int pf_insert_src_node(struct pf_src_node **,
2187 struct pf_rule *, struct pf_addr *, sa_family_t);
2188__private_extern__ void pf_src_tree_remove_state(struct pf_state *);
2189__private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
2190__private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
2191 u_int, int *);
2192__private_extern__ void pf_print_state(struct pf_state *);
2193__private_extern__ void pf_print_flags(u_int8_t);
2194__private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
2195 u_int8_t);
2196
2197__private_extern__ struct ifnet *sync_ifp;
2198__private_extern__ struct pf_rule pf_default_rule;
2199__private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *,
2200 u_int8_t);
2201__private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *);
2202
316670eb 2203struct ip_fw_args;
b0d623f7
A		 2204#if INET
2205__private_extern__ int pf_test(int, struct ifnet *, struct mbuf **,
316670eb 2206 struct ether_header *, struct ip_fw_args *);
b0d623f7
A		 2207#endif /* INET */
2208
2209#if INET6
2210__private_extern__ int pf_test6(int, struct ifnet *, struct mbuf **,
316670eb 2211 struct ether_header *, struct ip_fw_args *);
b0d623f7
A		 2212__private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *,
2213 struct pf_addr *, struct pf_addr *, u_int8_t);
2214__private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t);
2215#endif /* INET6 */
2216
b0d623f7
A		 2217__private_extern__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *,
2218 struct mbuf *, int);
b0d623f7
A		 2219__private_extern__ void *pf_pull_hdr(struct mbuf *, int, void *, int,
2220 u_short *, u_short *, sa_family_t);
2221__private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
2222__private_extern__ int pflog_packet(struct pfi_kif *, struct mbuf *,
2223 sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
2224 struct pf_ruleset *, struct pf_pdesc *);
2225__private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *,
2226 struct pf_addr *, struct pf_addr *, sa_family_t);
2227__private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
2228 struct pf_addr *, sa_family_t);
2229__private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
2230__private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
b0d623f7
A		 2231__private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *,
2232 union pf_state_xport *);
b0d623f7
A		 2233__private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
2234__private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
2235
2236__private_extern__ void pf_normalize_init(void);
2237__private_extern__ int pf_normalize_isempty(void);
2238__private_extern__ int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *,
2239 u_short *, struct pf_pdesc *);
2240__private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *,
2241 u_short *, struct pf_pdesc *);
2242__private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *,
2243 int, int, void *, struct pf_pdesc *);
2244__private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *);
2245__private_extern__ int pf_normalize_tcp_init(struct mbuf *, int,
2246 struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *,
2247 struct pf_state_peer *);
2248__private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, int,
2249 struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *,
2250 struct pf_state_peer *, struct pf_state_peer *, int *);
2251__private_extern__ u_int64_t pf_state_expires(const struct pf_state *);
2252__private_extern__ void pf_purge_expired_fragments(void);
2253__private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af,
2254 struct pfi_kif *);
2255__private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t,
2256 struct pf_addr_wrap *);
2257__private_extern__ int pf_socket_lookup(int, struct pf_pdesc *);
316670eb
A		 2258__private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *,
2259 struct pf_state_key *);
b0d623f7
A		 2260__private_extern__ void pfr_initialize(void);
2261__private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *,
2262 sa_family_t);
2263__private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *,
2264 sa_family_t, u_int64_t, int, int, int);
2265__private_extern__ int pfr_pool_get(struct pfr_ktable *, int *,
2266 struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t);
2267__private_extern__ void pfr_dynaddr_update(struct pfr_ktable *,
2268 struct pfi_dynaddr *);
6d2010ae 2269__private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *);
b0d623f7
A		 2270__private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *,
2271 char *);
2272__private_extern__ void pfr_detach_table(struct pfr_ktable *);
2273__private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int);
d1ecb069
A		 2274__private_extern__ int pfr_add_tables(user_addr_t, int, int *, int);
2275__private_extern__ int pfr_del_tables(user_addr_t, int, int *, int);
2276__private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t,
b0d623f7 2277 int *, int);
d1ecb069 2278__private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t,
b0d623f7 2279 int *, int);
d1ecb069
A		 2280__private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int);
2281__private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *,
b0d623f7
A		 2282 int *, int);
2283__private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int);
2284__private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *,
2285 u_int64_t);
d1ecb069 2286__private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t,
b0d623f7 2287 int, int *, int);
d1ecb069 2288__private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t,
b0d623f7 2289 int, int *, int);
d1ecb069 2290__private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t,
b0d623f7 2291 int, int *, int *, int *, int *, int, u_int32_t);
d1ecb069 2292__private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t,
b0d623f7 2293 int *, int);
d1ecb069 2294__private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t,
b0d623f7 2295 int *, int);
d1ecb069 2296__private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t,
b0d623f7 2297 int, int *, int);
d1ecb069 2298__private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t,
b0d623f7
A		 2299 int, int *, int);
2300__private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *,
2301 int);
2302__private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *,
2303 int);
2304__private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *,
2305 int *, int);
d1ecb069 2306__private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t,
b0d623f7
A		 2307 int, int *, int *, u_int32_t, int);
2308
2309__private_extern__ struct pfi_kif *pfi_all;
2310
2311__private_extern__ void pfi_initialize(void);
2312__private_extern__ struct pfi_kif *pfi_kif_get(const char *);
2313__private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
2314__private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
2315__private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
2316__private_extern__ void pfi_attach_ifnet(struct ifnet *);
2317__private_extern__ void pfi_detach_ifnet(struct ifnet *);
2318__private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2319 sa_family_t);
2320__private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2321__private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *);
2322__private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2323__private_extern__ void pfi_update_status(const char *, struct pf_status *);
d1ecb069 2324__private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *);
b0d623f7
A		 2325__private_extern__ int pfi_set_flags(const char *, int);
2326__private_extern__ int pfi_clear_flags(const char *, int);
2327
2328__private_extern__ u_int16_t pf_tagname2tag(char *);
2329__private_extern__ void pf_tag2tagname(u_int16_t, char *);
2330__private_extern__ void pf_tag_ref(u_int16_t);
2331__private_extern__ void pf_tag_unref(u_int16_t);
2332__private_extern__ int pf_tag_packet(struct mbuf *, struct pf_mtag *,
316670eb 2333 int, unsigned int, struct pf_pdesc *);
13f56ec4
A		 2334__private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int,
2335 struct pf_rule **, struct pf_rule **, int *);
2336__private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int,
2337 struct pf_rule **, struct pf_rule **, int *);
b0d623f7
A		 2338__private_extern__ u_int32_t pf_qname2qid(char *);
2339__private_extern__ void pf_qid2qname(u_int32_t, char *);
2340__private_extern__ void pf_qid_unref(u_int32_t);
2341
2342__private_extern__ struct pf_status pf_status;
2343__private_extern__ struct pool pf_frent_pl, pf_frag_pl;
2344
2345struct pf_pool_limit {
2346 void *pp;
2347 unsigned limit;
2348};
2349__private_extern__ struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
2350
2351__private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **,
316670eb 2352 struct mbuf **, unsigned int, int, struct ip_fw_args *);
b0d623f7
A		 2353__private_extern__ int pf_ifaddr_hook(struct ifnet *, unsigned long);
2354__private_extern__ void pf_ifnet_hook(struct ifnet *, int);
2355
2356/*
2357 * The following are defined with "private extern" storage class for
2358 * kernel, and "extern" for user-space.
2359 */
2360__private_extern__ struct pf_anchor_global pf_anchors;
2361__private_extern__ struct pf_anchor pf_main_anchor;
2362#define pf_main_ruleset pf_main_anchor.ruleset
2363
6d2010ae
A		 2364__private_extern__ int pf_is_enabled;
2365#define PF_IS_ENABLED (pf_is_enabled != 0)
316670eb
A		 2366__private_extern__ u_int32_t pf_hash_seed;
2367
2368#if PF_ALTQ
2369__private_extern__ u_int32_t altq_allowed;
2370#endif /* PF_ALTQ */
6d2010ae 2371
b0d623f7
A		 2372/* these ruleset functions can be linked into userland programs (pfctl) */
2373__private_extern__ int pf_get_ruleset_number(u_int8_t);
2374__private_extern__ void pf_init_ruleset(struct pf_ruleset *);
2375__private_extern__ int pf_anchor_setup(struct pf_rule *,
2376 const struct pf_ruleset *, const char *);
2377__private_extern__ int pf_anchor_copyout(const struct pf_ruleset *,
2378 const struct pf_rule *, struct pfioc_rule *);
2379__private_extern__ void pf_anchor_remove(struct pf_rule *);
2380__private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *);
2381__private_extern__ struct pf_anchor *pf_find_anchor(const char *);
2382__private_extern__ struct pf_ruleset *pf_find_ruleset(const char *);
316670eb
A		 2383__private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *,
2384 const char *, int, int *);
b0d623f7
A		 2385__private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *);
2386__private_extern__ void pf_rs_initialize(void);
2387
2388__private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *);
2389__private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *,
2390 struct mbuf *, int, const struct tcphdr *);
2391__private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr(
2392 const struct ip *, const struct ip6_hdr *, const struct tcphdr *);
2393__private_extern__ void pf_osfp_flush(void);
2394__private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *);
2395__private_extern__ void pf_osfp_initialize(void);
2396__private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2397__private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void);
316670eb
A		 2398__private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *);
2399__private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *);
b0d623f7
A		 2400#else /* !KERNEL */
2401extern struct pf_anchor_global pf_anchors;
2402extern struct pf_anchor pf_main_anchor;
2403#define pf_main_ruleset pf_main_anchor.ruleset
2404
2405/* these ruleset functions can be linked into userland programs (pfctl) */
2406extern int pf_get_ruleset_number(u_int8_t);
2407extern void pf_init_ruleset(struct pf_ruleset *);
2408extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *,
2409 const char *);
2410extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *,
2411 struct pfioc_rule *);
2412extern void pf_anchor_remove(struct pf_rule *);
2413extern void pf_remove_if_empty_ruleset(struct pf_ruleset *);
2414extern struct pf_anchor *pf_find_anchor(const char *);
2415extern struct pf_ruleset *pf_find_ruleset(const char *);
316670eb
A		 2416extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *,
2417 const char *, int, int *);
b0d623f7
A		 2418extern struct pf_ruleset *pf_find_or_create_ruleset(const char *);
2419extern void pf_rs_initialize(void);
2420#endif /* !KERNEL */
2421
2422#ifdef __cplusplus
2423}
2424#endif
2425#endif /* PF || !KERNEL */
2426#endif /* PRIVATE */
2427#endif /* _NET_PFVAR_H_ */
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