1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 * $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $
32 */
33
34 #ifndef _NET_PFVAR_H_
35 #define _NET_PFVAR_H_
36
37 #include <sys/param.h>
38 #include <sys/queue.h>
39 #include <sys/counter.h>
40 #include <sys/cpuset.h>
41 #include <sys/epoch.h>
42 #include <sys/malloc.h>
43 #include <sys/nv.h>
44 #include <sys/refcount.h>
45 #include <sys/sdt.h>
46 #include <sys/sysctl.h>
47 #include <sys/smp.h>
48 #include <sys/lock.h>
49 #include <sys/rmlock.h>
50 #include <sys/tree.h>
51 #include <sys/seqc.h>
52 #include <vm/uma.h>
53
54 #include <net/if.h>
55 #include <net/ethernet.h>
56 #include <net/radix.h>
57 #include <netinet/in.h>
58 #ifdef _KERNEL
59 #include <netinet/ip.h>
60 #include <netinet/tcp.h>
61 #include <netinet/udp.h>
62 #include <netinet/sctp.h>
63 #include <netinet/ip_icmp.h>
64 #include <netinet/icmp6.h>
65 #endif
66
67 #include <netpfil/pf/pf.h>
68 #include <netpfil/pf/pf_altq.h>
69 #include <netpfil/pf/pf_mtag.h>
70
71 #ifdef _KERNEL
72
73 #define PF_PFIL_NOREFRAGMENT 0x80000000
74
75 #if defined(__arm__)
76 #define PF_WANT_32_TO_64_COUNTER
77 #endif
78
79 /*
80 * A hybrid of 32-bit and 64-bit counters which can be used on platforms where
81 * counter(9) is very expensive.
82 *
83 * As 32-bit counters are expected to overflow, a periodic job sums them up to
84 * a saved 64-bit state. Fetching the value still walks all CPUs to get the most
85 * current snapshot.
86 */
87 #ifdef PF_WANT_32_TO_64_COUNTER
88 struct pf_counter_u64_pcpu {
89 u_int32_t current;
90 u_int32_t snapshot;
91 };
92
93 struct pf_counter_u64 {
94 struct pf_counter_u64_pcpu *pfcu64_pcpu;
95 u_int64_t pfcu64_value;
96 seqc_t pfcu64_seqc;
97 };
98
99 static inline int
pf_counter_u64_init(struct pf_counter_u64 * pfcu64,int flags)100 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
101 {
102
103 pfcu64->pfcu64_value = 0;
104 pfcu64->pfcu64_seqc = 0;
105 pfcu64->pfcu64_pcpu = uma_zalloc_pcpu(pcpu_zone_8, flags | M_ZERO);
106 if (__predict_false(pfcu64->pfcu64_pcpu == NULL))
107 return (ENOMEM);
108 return (0);
109 }
110
111 static inline void
pf_counter_u64_deinit(struct pf_counter_u64 * pfcu64)112 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
113 {
114
115 uma_zfree_pcpu(pcpu_zone_8, pfcu64->pfcu64_pcpu);
116 }
117
118 static inline void
pf_counter_u64_critical_enter(void)119 pf_counter_u64_critical_enter(void)
120 {
121
122 critical_enter();
123 }
124
125 static inline void
pf_counter_u64_critical_exit(void)126 pf_counter_u64_critical_exit(void)
127 {
128
129 critical_exit();
130 }
131
132 static inline void
pf_counter_u64_rollup_protected(struct pf_counter_u64 * pfcu64,uint64_t n)133 pf_counter_u64_rollup_protected(struct pf_counter_u64 *pfcu64, uint64_t n)
134 {
135
136 MPASS(curthread->td_critnest > 0);
137 pfcu64->pfcu64_value += n;
138 }
139
140 static inline void
pf_counter_u64_add_protected(struct pf_counter_u64 * pfcu64,uint32_t n)141 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
142 {
143 struct pf_counter_u64_pcpu *pcpu;
144 u_int32_t val;
145
146 MPASS(curthread->td_critnest > 0);
147 pcpu = zpcpu_get(pfcu64->pfcu64_pcpu);
148 val = atomic_load_int(&pcpu->current);
149 atomic_store_int(&pcpu->current, val + n);
150 }
151
152 static inline void
pf_counter_u64_add(struct pf_counter_u64 * pfcu64,uint32_t n)153 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
154 {
155
156 critical_enter();
157 pf_counter_u64_add_protected(pfcu64, n);
158 critical_exit();
159 }
160
161 static inline u_int64_t
pf_counter_u64_periodic(struct pf_counter_u64 * pfcu64)162 pf_counter_u64_periodic(struct pf_counter_u64 *pfcu64)
163 {
164 struct pf_counter_u64_pcpu *pcpu;
165 u_int64_t sum;
166 u_int32_t val;
167 int cpu;
168
169 MPASS(curthread->td_critnest > 0);
170 seqc_write_begin(&pfcu64->pfcu64_seqc);
171 sum = pfcu64->pfcu64_value;
172 CPU_FOREACH(cpu) {
173 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
174 val = atomic_load_int(&pcpu->current);
175 sum += (uint32_t)(val - pcpu->snapshot);
176 pcpu->snapshot = val;
177 }
178 pfcu64->pfcu64_value = sum;
179 seqc_write_end(&pfcu64->pfcu64_seqc);
180 return (sum);
181 }
182
183 static inline u_int64_t
pf_counter_u64_fetch(const struct pf_counter_u64 * pfcu64)184 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64)
185 {
186 struct pf_counter_u64_pcpu *pcpu;
187 u_int64_t sum;
188 seqc_t seqc;
189 int cpu;
190
191 for (;;) {
192 seqc = seqc_read(&pfcu64->pfcu64_seqc);
193 sum = 0;
194 CPU_FOREACH(cpu) {
195 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
196 sum += (uint32_t)(atomic_load_int(&pcpu->current) -pcpu->snapshot);
197 }
198 sum += pfcu64->pfcu64_value;
199 if (seqc_consistent(&pfcu64->pfcu64_seqc, seqc))
200 break;
201 }
202 return (sum);
203 }
204
205 static inline void
pf_counter_u64_zero_protected(struct pf_counter_u64 * pfcu64)206 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
207 {
208 struct pf_counter_u64_pcpu *pcpu;
209 int cpu;
210
211 MPASS(curthread->td_critnest > 0);
212 seqc_write_begin(&pfcu64->pfcu64_seqc);
213 CPU_FOREACH(cpu) {
214 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
215 pcpu->snapshot = atomic_load_int(&pcpu->current);
216 }
217 pfcu64->pfcu64_value = 0;
218 seqc_write_end(&pfcu64->pfcu64_seqc);
219 }
220
221 static inline void
pf_counter_u64_zero(struct pf_counter_u64 * pfcu64)222 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
223 {
224
225 critical_enter();
226 pf_counter_u64_zero_protected(pfcu64);
227 critical_exit();
228 }
229 #else
230 struct pf_counter_u64 {
231 counter_u64_t counter;
232 };
233
234 static inline int
pf_counter_u64_init(struct pf_counter_u64 * pfcu64,int flags)235 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
236 {
237
238 pfcu64->counter = counter_u64_alloc(flags);
239 if (__predict_false(pfcu64->counter == NULL))
240 return (ENOMEM);
241 return (0);
242 }
243
244 static inline void
pf_counter_u64_deinit(struct pf_counter_u64 * pfcu64)245 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
246 {
247
248 counter_u64_free(pfcu64->counter);
249 }
250
251 static inline void
pf_counter_u64_critical_enter(void)252 pf_counter_u64_critical_enter(void)
253 {
254
255 }
256
257 static inline void
pf_counter_u64_critical_exit(void)258 pf_counter_u64_critical_exit(void)
259 {
260
261 }
262
263 static inline void
pf_counter_u64_rollup_protected(struct pf_counter_u64 * pfcu64,uint64_t n)264 pf_counter_u64_rollup_protected(struct pf_counter_u64 *pfcu64, uint64_t n)
265 {
266
267 counter_u64_add(pfcu64->counter, n);
268 }
269
270 static inline void
pf_counter_u64_add_protected(struct pf_counter_u64 * pfcu64,uint32_t n)271 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
272 {
273
274 counter_u64_add(pfcu64->counter, n);
275 }
276
277 static inline void
pf_counter_u64_add(struct pf_counter_u64 * pfcu64,uint32_t n)278 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
279 {
280
281 pf_counter_u64_add_protected(pfcu64, n);
282 }
283
284 static inline u_int64_t
pf_counter_u64_fetch(const struct pf_counter_u64 * pfcu64)285 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64)
286 {
287
288 return (counter_u64_fetch(pfcu64->counter));
289 }
290
291 static inline void
pf_counter_u64_zero_protected(struct pf_counter_u64 * pfcu64)292 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
293 {
294
295 counter_u64_zero(pfcu64->counter);
296 }
297
298 static inline void
pf_counter_u64_zero(struct pf_counter_u64 * pfcu64)299 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
300 {
301
302 pf_counter_u64_zero_protected(pfcu64);
303 }
304 #endif
305
306 #define pf_get_timestamp(prule)({ \
307 uint32_t _ts = 0; \
308 uint32_t __ts; \
309 int cpu; \
310 CPU_FOREACH(cpu) { \
311 __ts = *zpcpu_get_cpu(prule->timestamp, cpu); \
312 if (__ts > _ts) \
313 _ts = __ts; \
314 } \
315 _ts; \
316 })
317
318 #define pf_update_timestamp(prule) \
319 do { \
320 critical_enter(); \
321 *zpcpu_get((prule)->timestamp) = time_second; \
322 critical_exit(); \
323 } while (0)
324
325 #define pf_timestamp_pcpu_zone (sizeof(time_t) == 4 ? pcpu_zone_4 : pcpu_zone_8)
326 _Static_assert(sizeof(time_t) == 4 || sizeof(time_t) == 8, "unexpected time_t size");
327
328 SYSCTL_DECL(_net_pf);
329 MALLOC_DECLARE(M_PFHASH);
330 MALLOC_DECLARE(M_PF_RULE_ITEM);
331
332 SDT_PROVIDER_DECLARE(pf);
333
334 struct pfi_dynaddr {
335 TAILQ_ENTRY(pfi_dynaddr) entry;
336 struct pf_addr pfid_addr4;
337 struct pf_addr pfid_mask4;
338 struct pf_addr pfid_addr6;
339 struct pf_addr pfid_mask6;
340 struct pfr_ktable *pfid_kt;
341 struct pfi_kkif *pfid_kif;
342 int pfid_net; /* mask or 128 */
343 int pfid_acnt4; /* address count IPv4 */
344 int pfid_acnt6; /* address count IPv6 */
345 sa_family_t pfid_af; /* rule af */
346 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
347 };
348
349 /*
350 * Address manipulation macros
351 */
352 #define HTONL(x) (x) = htonl((__uint32_t)(x))
353 #define HTONS(x) (x) = htons((__uint16_t)(x))
354 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
355 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
356
357 #define PF_NAME "pf"
358
359 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
360 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
361 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
362
363 #ifdef INVARIANTS
364 #define PF_STATE_LOCK(s) \
365 do { \
366 struct pf_kstate *_s = (s); \
367 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
368 MPASS(_s->lock == &_ih->lock); \
369 mtx_lock(_s->lock); \
370 } while (0)
371 #define PF_STATE_UNLOCK(s) \
372 do { \
373 struct pf_kstate *_s = (s); \
374 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
375 MPASS(_s->lock == &_ih->lock); \
376 mtx_unlock(_s->lock); \
377 } while (0)
378 #else
379 #define PF_STATE_LOCK(s) mtx_lock((s)->lock)
380 #define PF_STATE_UNLOCK(s) mtx_unlock((s)->lock)
381 #endif
382
383 #ifdef INVARIANTS
384 #define PF_STATE_LOCK_ASSERT(s) \
385 do { \
386 struct pf_kstate *_s = (s); \
387 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
388 MPASS(_s->lock == &_ih->lock); \
389 PF_HASHROW_ASSERT(_ih); \
390 } while (0)
391 #else /* !INVARIANTS */
392 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
393 #endif /* INVARIANTS */
394
395 #ifdef INVARIANTS
396 #define PF_SRC_NODE_LOCK(sn) \
397 do { \
398 struct pf_ksrc_node *_sn = (sn); \
399 struct pf_srchash *_sh = &V_pf_srchash[ \
400 pf_hashsrc(&_sn->addr, _sn->af)]; \
401 MPASS(_sn->lock == &_sh->lock); \
402 mtx_lock(_sn->lock); \
403 } while (0)
404 #define PF_SRC_NODE_UNLOCK(sn) \
405 do { \
406 struct pf_ksrc_node *_sn = (sn); \
407 struct pf_srchash *_sh = &V_pf_srchash[ \
408 pf_hashsrc(&_sn->addr, _sn->af)]; \
409 MPASS(_sn->lock == &_sh->lock); \
410 mtx_unlock(_sn->lock); \
411 } while (0)
412 #else
413 #define PF_SRC_NODE_LOCK(sn) mtx_lock((sn)->lock)
414 #define PF_SRC_NODE_UNLOCK(sn) mtx_unlock((sn)->lock)
415 #endif
416
417 #ifdef INVARIANTS
418 #define PF_SRC_NODE_LOCK_ASSERT(sn) \
419 do { \
420 struct pf_ksrc_node *_sn = (sn); \
421 struct pf_srchash *_sh = &V_pf_srchash[ \
422 pf_hashsrc(&_sn->addr, _sn->af)]; \
423 MPASS(_sn->lock == &_sh->lock); \
424 PF_HASHROW_ASSERT(_sh); \
425 } while (0)
426 #else /* !INVARIANTS */
427 #define PF_SRC_NODE_LOCK_ASSERT(sn) do {} while (0)
428 #endif /* INVARIANTS */
429
430 extern struct mtx_padalign pf_unlnkdrules_mtx;
431 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
432 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
433 #define PF_UNLNKDRULES_ASSERT() mtx_assert(&pf_unlnkdrules_mtx, MA_OWNED)
434
435 extern struct sx pf_config_lock;
436 #define PF_CONFIG_LOCK() sx_xlock(&pf_config_lock)
437 #define PF_CONFIG_UNLOCK() sx_xunlock(&pf_config_lock)
438 #define PF_CONFIG_ASSERT() sx_assert(&pf_config_lock, SA_XLOCKED)
439
440 VNET_DECLARE(struct rmlock, pf_rules_lock);
441 #define V_pf_rules_lock VNET(pf_rules_lock)
442
443 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
444 #define PF_RULES_RLOCK() rm_rlock(&V_pf_rules_lock, &_pf_rules_tracker)
445 #define PF_RULES_RUNLOCK() rm_runlock(&V_pf_rules_lock, &_pf_rules_tracker)
446 #define PF_RULES_WLOCK() rm_wlock(&V_pf_rules_lock)
447 #define PF_RULES_WUNLOCK() rm_wunlock(&V_pf_rules_lock)
448 #define PF_RULES_WOWNED() rm_wowned(&V_pf_rules_lock)
449 #define PF_RULES_ASSERT() rm_assert(&V_pf_rules_lock, RA_LOCKED)
450 #define PF_RULES_RASSERT() rm_assert(&V_pf_rules_lock, RA_RLOCKED)
451 #define PF_RULES_WASSERT() rm_assert(&V_pf_rules_lock, RA_WLOCKED)
452
453 extern struct mtx_padalign pf_table_stats_lock;
454 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock)
455 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock)
456 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock)
457 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_table_stats_lock, MA_OWNED)
458
459 extern struct sx pf_end_lock;
460
461 #define PF_MODVER 1
462 #define PFLOG_MODVER 1
463 #define PFSYNC_MODVER 1
464
465 #define PFLOG_MINVER 1
466 #define PFLOG_PREFVER PFLOG_MODVER
467 #define PFLOG_MAXVER 1
468 #define PFSYNC_MINVER 1
469 #define PFSYNC_PREFVER PFSYNC_MODVER
470 #define PFSYNC_MAXVER 1
471
472 #ifdef INET
473 #ifndef INET6
474 #define PF_INET_ONLY
475 #endif /* ! INET6 */
476 #endif /* INET */
477
478 #ifdef INET6
479 #ifndef INET
480 #define PF_INET6_ONLY
481 #endif /* ! INET */
482 #endif /* INET6 */
483
484 #ifdef INET
485 #ifdef INET6
486 #define PF_INET_INET6
487 #endif /* INET6 */
488 #endif /* INET */
489
490 #else
491
492 #define PF_INET_INET6
493
494 #endif /* _KERNEL */
495
496 /* Both IPv4 and IPv6 */
497 #ifdef PF_INET_INET6
498
499 #define PF_AEQ(a, b, c) \
500 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
501 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
502 (a)->addr32[2] == (b)->addr32[2] && \
503 (a)->addr32[1] == (b)->addr32[1] && \
504 (a)->addr32[0] == (b)->addr32[0])) \
505
506 #define PF_ANEQ(a, b, c) \
507 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
508 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
509 (a)->addr32[1] != (b)->addr32[1] || \
510 (a)->addr32[2] != (b)->addr32[2] || \
511 (a)->addr32[3] != (b)->addr32[3]))) \
512
513 #define PF_AZERO(a, c) \
514 ((c == AF_INET && !(a)->addr32[0]) || \
515 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
516 !(a)->addr32[2] && !(a)->addr32[3] )) \
517
518 #define PF_MATCHA(n, a, m, b, f) \
519 pf_match_addr(n, a, m, b, f)
520
521 #define PF_ACPY(a, b, f) \
522 pf_addrcpy(a, b, f)
523
524 #define PF_AINC(a, f) \
525 pf_addr_inc(a, f)
526
527 #define PF_POOLMASK(a, b, c, d, f) \
528 pf_poolmask(a, b, c, d, f)
529
530 #else
531
532 /* Just IPv6 */
533
534 #ifdef PF_INET6_ONLY
535
536 #define PF_AEQ(a, b, c) \
537 ((a)->addr32[3] == (b)->addr32[3] && \
538 (a)->addr32[2] == (b)->addr32[2] && \
539 (a)->addr32[1] == (b)->addr32[1] && \
540 (a)->addr32[0] == (b)->addr32[0]) \
541
542 #define PF_ANEQ(a, b, c) \
543 ((a)->addr32[3] != (b)->addr32[3] || \
544 (a)->addr32[2] != (b)->addr32[2] || \
545 (a)->addr32[1] != (b)->addr32[1] || \
546 (a)->addr32[0] != (b)->addr32[0]) \
547
548 #define PF_AZERO(a, c) \
549 (!(a)->addr32[0] && \
550 !(a)->addr32[1] && \
551 !(a)->addr32[2] && \
552 !(a)->addr32[3] ) \
553
554 #define PF_MATCHA(n, a, m, b, f) \
555 pf_match_addr(n, a, m, b, f)
556
557 #define PF_ACPY(a, b, f) \
558 pf_addrcpy(a, b, f)
559
560 #define PF_AINC(a, f) \
561 pf_addr_inc(a, f)
562
563 #define PF_POOLMASK(a, b, c, d, f) \
564 pf_poolmask(a, b, c, d, f)
565
566 #else
567
568 /* Just IPv4 */
569 #ifdef PF_INET_ONLY
570
571 #define PF_AEQ(a, b, c) \
572 ((a)->addr32[0] == (b)->addr32[0])
573
574 #define PF_ANEQ(a, b, c) \
575 ((a)->addr32[0] != (b)->addr32[0])
576
577 #define PF_AZERO(a, c) \
578 (!(a)->addr32[0])
579
580 #define PF_MATCHA(n, a, m, b, f) \
581 pf_match_addr(n, a, m, b, f)
582
583 #define PF_ACPY(a, b, f) \
584 (a)->v4.s_addr = (b)->v4.s_addr
585
586 #define PF_AINC(a, f) \
587 do { \
588 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
589 } while (0)
590
591 #define PF_POOLMASK(a, b, c, d, f) \
592 do { \
593 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
594 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
595 } while (0)
596
597 #endif /* PF_INET_ONLY */
598 #endif /* PF_INET6_ONLY */
599 #endif /* PF_INET_INET6 */
600
601 /*
602 * XXX callers not FIB-aware in our version of pf yet.
603 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
604 */
605 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
606 ( \
607 (((aw)->type == PF_ADDR_NOROUTE && \
608 pf_routable((x), (af), NULL, (rtid))) || \
609 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
610 pf_routable((x), (af), (ifp), (rtid))) || \
611 ((aw)->type == PF_ADDR_TABLE && \
612 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
613 ((aw)->type == PF_ADDR_DYNIFTL && \
614 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
615 ((aw)->type == PF_ADDR_RANGE && \
616 !pf_match_addr_range(&(aw)->v.a.addr, \
617 &(aw)->v.a.mask, (x), (af))) || \
618 ((aw)->type == PF_ADDR_ADDRMASK && \
619 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
620 !PF_MATCHA(0, &(aw)->v.a.addr, \
621 &(aw)->v.a.mask, (x), (af))))) != \
622 (neg) \
623 )
624
625 #define PF_ALGNMNT(off) (((off) % 2) == 0)
626
627 /*
628 * At the moment there are no rules which have both NAT and RDR actions,
629 * apart from af-to rules, but those don't to source tracking for address
630 * translation. And the r->rdr pool is used for both NAT and RDR.
631 * So there is no PF_SN_RDR.
632 */
633 enum pf_sn_types { PF_SN_LIMIT, PF_SN_NAT, PF_SN_ROUTE, PF_SN_MAX };
634 typedef enum pf_sn_types pf_sn_types_t;
635 #define PF_SN_TYPE_NAMES { \
636 "limit source-track", \
637 "NAT/RDR sticky-address", \
638 "route sticky-address", \
639 NULL \
640 }
641
642 #ifdef _KERNEL
643
644 struct pf_kpooladdr {
645 struct pf_addr_wrap addr;
646 TAILQ_ENTRY(pf_kpooladdr) entries;
647 char ifname[IFNAMSIZ];
648 struct pfi_kkif *kif;
649 };
650
651 TAILQ_HEAD(pf_kpalist, pf_kpooladdr);
652
653 struct pf_kpool {
654 struct mtx mtx;
655 struct pf_kpalist list;
656 struct pf_kpooladdr *cur;
657 struct pf_poolhashkey key;
658 struct pf_addr counter;
659 struct pf_mape_portset mape;
660 int tblidx;
661 u_int16_t proxy_port[2];
662 u_int8_t opts;
663 };
664
665 struct pf_rule_actions {
666 struct pf_addr rt_addr;
667 struct pfi_kkif *rt_kif;
668 int32_t rtableid;
669 uint32_t flags;
670 uint16_t qid;
671 uint16_t pqid;
672 uint16_t max_mss;
673 uint16_t dnpipe;
674 uint16_t dnrpipe; /* Reverse direction pipe */
675 uint8_t log;
676 uint8_t set_tos;
677 uint8_t min_ttl;
678 uint8_t set_prio[2];
679 uint8_t rt;
680 };
681
682 union pf_keth_rule_ptr {
683 struct pf_keth_rule *ptr;
684 uint32_t nr;
685 };
686
687 struct pf_keth_rule_addr {
688 uint8_t addr[ETHER_ADDR_LEN];
689 uint8_t mask[ETHER_ADDR_LEN];
690 bool neg;
691 uint8_t isset;
692 };
693
694 struct pf_keth_anchor;
695
696 TAILQ_HEAD(pf_keth_ruleq, pf_keth_rule);
697
698 struct pf_keth_ruleset {
699 struct pf_keth_ruleq rules[2];
700 struct pf_keth_rules {
701 struct pf_keth_ruleq *rules;
702 int open;
703 uint32_t ticket;
704 } active, inactive;
705 struct vnet *vnet;
706 struct pf_keth_anchor *anchor;
707 };
708
709 RB_HEAD(pf_keth_anchor_global, pf_keth_anchor);
710 RB_HEAD(pf_keth_anchor_node, pf_keth_anchor);
711 struct pf_keth_anchor {
712 RB_ENTRY(pf_keth_anchor) entry_node;
713 RB_ENTRY(pf_keth_anchor) entry_global;
714 struct pf_keth_anchor *parent;
715 struct pf_keth_anchor_node children;
716 char name[PF_ANCHOR_NAME_SIZE];
717 char path[MAXPATHLEN];
718 struct pf_keth_ruleset ruleset;
719 int refcnt; /* anchor rules */
720 uint8_t anchor_relative;
721 uint8_t anchor_wildcard;
722 };
723 RB_PROTOTYPE(pf_keth_anchor_node, pf_keth_anchor, entry_node,
724 pf_keth_anchor_compare);
725 RB_PROTOTYPE(pf_keth_anchor_global, pf_keth_anchor, entry_global,
726 pf_keth_anchor_compare);
727
728 struct pf_keth_rule {
729 #define PFE_SKIP_IFP 0
730 #define PFE_SKIP_DIR 1
731 #define PFE_SKIP_PROTO 2
732 #define PFE_SKIP_SRC_ADDR 3
733 #define PFE_SKIP_DST_ADDR 4
734 #define PFE_SKIP_SRC_IP_ADDR 5
735 #define PFE_SKIP_DST_IP_ADDR 6
736 #define PFE_SKIP_COUNT 7
737 union pf_keth_rule_ptr skip[PFE_SKIP_COUNT];
738
739 TAILQ_ENTRY(pf_keth_rule) entries;
740
741 struct pf_keth_anchor *anchor;
742 u_int8_t anchor_relative;
743 u_int8_t anchor_wildcard;
744
745 uint32_t nr;
746
747 bool quick;
748
749 /* Filter */
750 char ifname[IFNAMSIZ];
751 struct pfi_kkif *kif;
752 bool ifnot;
753 uint8_t direction;
754 uint16_t proto;
755 struct pf_keth_rule_addr src, dst;
756 struct pf_rule_addr ipsrc, ipdst;
757 char match_tagname[PF_TAG_NAME_SIZE];
758 uint16_t match_tag;
759 bool match_tag_not;
760
761
762 /* Stats */
763 counter_u64_t evaluations;
764 counter_u64_t packets[2];
765 counter_u64_t bytes[2];
766 time_t *timestamp;
767
768 /* Action */
769 char qname[PF_QNAME_SIZE];
770 int qid;
771 char tagname[PF_TAG_NAME_SIZE];
772 uint16_t tag;
773 char bridge_to_name[IFNAMSIZ];
774 struct pfi_kkif *bridge_to;
775 uint8_t action;
776 uint16_t dnpipe;
777 uint32_t dnflags;
778
779 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
780 uint32_t ridentifier;
781 };
782
783 RB_HEAD(pf_krule_global, pf_krule);
784 RB_PROTOTYPE(pf_krule_global, pf_krule, entry_global, pf_krule_compare);
785
786 struct pf_krule {
787 struct pf_rule_addr src;
788 struct pf_rule_addr dst;
789 struct pf_krule *skip[PF_SKIP_COUNT];
790 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
791 uint32_t ridentifier;
792 char ifname[IFNAMSIZ];
793 char rcv_ifname[IFNAMSIZ];
794 char qname[PF_QNAME_SIZE];
795 char pqname[PF_QNAME_SIZE];
796 char tagname[PF_TAG_NAME_SIZE];
797 char match_tagname[PF_TAG_NAME_SIZE];
798
799 char overload_tblname[PF_TABLE_NAME_SIZE];
800
801 TAILQ_ENTRY(pf_krule) entries;
802 struct pf_kpool nat;
803 struct pf_kpool rdr;
804 struct pf_kpool route;
805
806 struct pf_counter_u64 evaluations;
807 struct pf_counter_u64 packets[2];
808 struct pf_counter_u64 bytes[2];
809 time_t *timestamp;
810
811 struct pfi_kkif *kif;
812 struct pfi_kkif *rcv_kif;
813 struct pf_kanchor *anchor;
814 struct pfr_ktable *overload_tbl;
815
816 pf_osfp_t os_fingerprint;
817
818 int32_t rtableid;
819 u_int32_t timeout[PFTM_MAX];
820 u_int32_t max_states;
821 u_int32_t max_src_nodes;
822 u_int32_t max_src_states;
823 u_int32_t max_src_conn;
824 struct {
825 u_int32_t limit;
826 u_int32_t seconds;
827 } max_src_conn_rate;
828 u_int16_t qid;
829 u_int16_t pqid;
830 u_int16_t dnpipe;
831 u_int16_t dnrpipe;
832 u_int32_t free_flags;
833 u_int32_t nr;
834 u_int32_t prob;
835 uid_t cuid;
836 pid_t cpid;
837
838 counter_u64_t states_cur;
839 counter_u64_t states_tot;
840 counter_u64_t src_nodes[PF_SN_MAX];
841
842 u_int16_t return_icmp;
843 u_int16_t return_icmp6;
844 u_int16_t max_mss;
845 u_int16_t tag;
846 u_int16_t match_tag;
847 u_int16_t scrub_flags;
848
849 struct pf_rule_uid uid;
850 struct pf_rule_gid gid;
851
852 u_int32_t rule_flag;
853 uint32_t rule_ref;
854 u_int8_t action;
855 u_int8_t direction;
856 u_int8_t log;
857 u_int8_t logif;
858 u_int8_t quick;
859 u_int8_t ifnot;
860 u_int8_t match_tag_not;
861 u_int8_t natpass;
862
863 u_int8_t keep_state;
864 sa_family_t af;
865 u_int8_t proto;
866 u_int8_t type;
867 u_int8_t code;
868 u_int8_t flags;
869 u_int8_t flagset;
870 u_int8_t min_ttl;
871 u_int8_t allow_opts;
872 u_int8_t rt;
873 u_int8_t return_ttl;
874 u_int8_t tos;
875 u_int8_t set_tos;
876 u_int8_t anchor_relative;
877 u_int8_t anchor_wildcard;
878
879 u_int8_t flush;
880 u_int8_t prio;
881 u_int8_t set_prio[2];
882 sa_family_t naf;
883 u_int8_t rcvifnot;
884
885 struct {
886 struct pf_addr addr;
887 u_int16_t port;
888 } divert;
889 u_int8_t md5sum[PF_MD5_DIGEST_LENGTH];
890 RB_ENTRY(pf_krule) entry_global;
891
892 #ifdef PF_WANT_32_TO_64_COUNTER
893 LIST_ENTRY(pf_krule) allrulelist;
894 bool allrulelinked;
895 #endif
896 };
897
898 struct pf_krule_item {
899 SLIST_ENTRY(pf_krule_item) entry;
900 struct pf_krule *r;
901 };
902
903 SLIST_HEAD(pf_krule_slist, pf_krule_item);
904
905 struct pf_ksrc_node {
906 LIST_ENTRY(pf_ksrc_node) entry;
907 struct pf_addr addr;
908 struct pf_addr raddr;
909 struct pf_krule_slist match_rules;
910 struct pf_krule *rule;
911 struct pfi_kkif *rkif;
912 counter_u64_t bytes[2];
913 counter_u64_t packets[2];
914 u_int32_t states;
915 u_int32_t conn;
916 struct pf_threshold conn_rate;
917 u_int32_t creation;
918 u_int32_t expire;
919 sa_family_t af;
920 sa_family_t naf;
921 u_int8_t ruletype;
922 pf_sn_types_t type;
923 struct mtx *lock;
924 };
925 #endif
926
927 struct pf_state_scrub {
928 struct timeval pfss_last; /* time received last packet */
929 u_int32_t pfss_tsecr; /* last echoed timestamp */
930 u_int32_t pfss_tsval; /* largest timestamp */
931 u_int32_t pfss_tsval0; /* original timestamp */
932 u_int16_t pfss_flags;
933 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
934 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
935 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
936 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
937 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
938 u_int8_t pfss_ttl; /* stashed TTL */
939 u_int8_t pad;
940 union {
941 u_int32_t pfss_ts_mod; /* timestamp modulation */
942 u_int32_t pfss_v_tag; /* SCTP verification tag */
943 };
944 };
945
946 struct pf_state_host {
947 struct pf_addr addr;
948 u_int16_t port;
949 u_int16_t pad;
950 };
951
952 struct pf_state_peer {
953 struct pf_state_scrub *scrub; /* state is scrubbed */
954 u_int32_t seqlo; /* Max sequence number sent */
955 u_int32_t seqhi; /* Max the other end ACKd + win */
956 u_int32_t seqdiff; /* Sequence number modulator */
957 u_int16_t max_win; /* largest window (pre scaling) */
958 u_int16_t mss; /* Maximum segment size option */
959 u_int8_t state; /* active state level */
960 u_int8_t wscale; /* window scaling factor */
961 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
962 u_int8_t pad[1];
963 };
964
965 /* Keep synced with struct pf_udp_endpoint. */
966 struct pf_udp_endpoint_cmp {
967 struct pf_addr addr;
968 uint16_t port;
969 sa_family_t af;
970 uint8_t pad[1];
971 };
972
973 struct pf_udp_endpoint {
974 struct pf_addr addr;
975 uint16_t port;
976 sa_family_t af;
977 uint8_t pad[1];
978
979 struct pf_udp_mapping *mapping;
980 LIST_ENTRY(pf_udp_endpoint) entry;
981 };
982
983 struct pf_udp_mapping {
984 struct pf_udp_endpoint endpoints[2];
985 u_int refs;
986 };
987
988 /* Keep synced with struct pf_state_key. */
989 struct pf_state_key_cmp {
990 struct pf_addr addr[2];
991 u_int16_t port[2];
992 sa_family_t af;
993 u_int8_t proto;
994 u_int8_t pad[2];
995 };
996
997 struct pf_state_key {
998 struct pf_addr addr[2];
999 u_int16_t port[2];
1000 sa_family_t af;
1001 u_int8_t proto;
1002 u_int8_t pad[2];
1003
1004 LIST_ENTRY(pf_state_key) entry;
1005 TAILQ_HEAD(, pf_kstate) states[2];
1006 };
1007
1008 #define PF_REVERSED_KEY(state, family) \
1009 (((state)->key[PF_SK_WIRE]->af != (state)->key[PF_SK_STACK]->af) && \
1010 ((state)->key[PF_SK_WIRE]->af != (family)) && \
1011 ((state)->direction == PF_IN))
1012
1013 /* Keep synced with struct pf_kstate. */
1014 struct pf_state_cmp {
1015 u_int64_t id;
1016 u_int32_t creatorid;
1017 u_int8_t direction;
1018 u_int8_t pad[3];
1019 };
1020
1021 struct pf_state_scrub_export {
1022 uint16_t pfss_flags;
1023 uint8_t pfss_ttl; /* stashed TTL */
1024 #define PF_SCRUB_FLAG_VALID 0x01
1025 uint8_t scrub_flag;
1026 uint32_t pfss_ts_mod; /* timestamp modulation */
1027 };
1028
1029 struct pf_state_key_export {
1030 struct pf_addr addr[2];
1031 uint16_t port[2];
1032 };
1033
1034 struct pf_state_peer_export {
1035 struct pf_state_scrub_export scrub; /* state is scrubbed */
1036 uint32_t seqlo; /* Max sequence number sent */
1037 uint32_t seqhi; /* Max the other end ACKd + win */
1038 uint32_t seqdiff; /* Sequence number modulator */
1039 uint16_t max_win; /* largest window (pre scaling) */
1040 uint16_t mss; /* Maximum segment size option */
1041 uint8_t state; /* active state level */
1042 uint8_t wscale; /* window scaling factor */
1043 uint8_t dummy[6];
1044 };
1045 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect");
1046
1047 struct pf_state_export {
1048 uint64_t version;
1049 #define PF_STATE_VERSION 20230404
1050 uint64_t id;
1051 char ifname[IFNAMSIZ];
1052 char orig_ifname[IFNAMSIZ];
1053 struct pf_state_key_export key[2];
1054 struct pf_state_peer_export src;
1055 struct pf_state_peer_export dst;
1056 struct pf_addr rt_addr;
1057 uint32_t rule;
1058 uint32_t anchor;
1059 uint32_t nat_rule;
1060 uint32_t creation;
1061 uint32_t expire;
1062 uint32_t spare0;
1063 uint64_t packets[2];
1064 uint64_t bytes[2];
1065 uint32_t creatorid;
1066 uint32_t spare1;
1067 sa_family_t af;
1068 uint8_t proto;
1069 uint8_t direction;
1070 uint8_t log;
1071 uint8_t state_flags_compat;
1072 uint8_t timeout;
1073 uint8_t sync_flags;
1074 uint8_t updates;
1075 uint16_t state_flags;
1076 uint16_t qid;
1077 uint16_t pqid;
1078 uint16_t dnpipe;
1079 uint16_t dnrpipe;
1080 int32_t rtableid;
1081 uint8_t min_ttl;
1082 uint8_t set_tos;
1083 uint16_t max_mss;
1084 uint8_t set_prio[2];
1085 uint8_t rt;
1086 char rt_ifname[IFNAMSIZ];
1087
1088 uint8_t spare[72];
1089 };
1090 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect");
1091
1092 #ifdef _KERNEL
1093 struct pf_kstate {
1094 /*
1095 * Area shared with pf_state_cmp
1096 */
1097 u_int64_t id;
1098 u_int32_t creatorid;
1099 u_int8_t direction;
1100 u_int8_t pad[3];
1101 /*
1102 * end of the area
1103 */
1104
1105 u_int16_t state_flags;
1106 u_int8_t timeout;
1107 u_int8_t sync_state; /* PFSYNC_S_x */
1108 u_int8_t sync_updates;
1109 u_int refs;
1110 struct mtx *lock;
1111 TAILQ_ENTRY(pf_kstate) sync_list;
1112 TAILQ_ENTRY(pf_kstate) key_list[2];
1113 LIST_ENTRY(pf_kstate) entry;
1114 struct pf_state_peer src;
1115 struct pf_state_peer dst;
1116 struct pf_krule_slist match_rules;
1117 struct pf_krule *rule;
1118 struct pf_krule *anchor;
1119 struct pf_krule *nat_rule;
1120 struct pf_state_key *key[2]; /* addresses stack and wire */
1121 struct pf_udp_mapping *udp_mapping;
1122 struct pfi_kkif *kif;
1123 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */
1124 struct pf_ksrc_node *sns[PF_SN_MAX];/* source nodes */
1125 u_int64_t packets[2];
1126 u_int64_t bytes[2];
1127 u_int64_t creation;
1128 u_int64_t expire;
1129 u_int32_t pfsync_time;
1130 struct pf_rule_actions act;
1131 u_int16_t tag;
1132 u_int16_t if_index_in;
1133 u_int16_t if_index_out;
1134 };
1135
1136 /*
1137 * 6 cache lines per struct, 10 structs per page.
1138 * Try to not grow the struct beyond that.
1139 */
1140 _Static_assert(sizeof(struct pf_kstate) <= 384, "pf_kstate size crosses 384 bytes");
1141 #endif
1142
1143 /*
1144 * Unified state structures for pulling states out of the kernel
1145 * used by pfsync(4) and the pf(4) ioctl.
1146 */
1147 struct pfsync_state_scrub {
1148 u_int16_t pfss_flags;
1149 u_int8_t pfss_ttl; /* stashed TTL */
1150 #define PFSYNC_SCRUB_FLAG_VALID 0x01
1151 u_int8_t scrub_flag;
1152 u_int32_t pfss_ts_mod; /* timestamp modulation */
1153 } __packed;
1154
1155 struct pfsync_state_peer {
1156 struct pfsync_state_scrub scrub; /* state is scrubbed */
1157 u_int32_t seqlo; /* Max sequence number sent */
1158 u_int32_t seqhi; /* Max the other end ACKd + win */
1159 u_int32_t seqdiff; /* Sequence number modulator */
1160 u_int16_t max_win; /* largest window (pre scaling) */
1161 u_int16_t mss; /* Maximum segment size option */
1162 u_int8_t state; /* active state level */
1163 u_int8_t wscale; /* window scaling factor */
1164 u_int8_t pad[6];
1165 } __packed;
1166
1167 struct pfsync_state_key {
1168 struct pf_addr addr[2];
1169 u_int16_t port[2];
1170 };
1171
1172 struct pfsync_state_1301 {
1173 u_int64_t id;
1174 char ifname[IFNAMSIZ];
1175 struct pfsync_state_key key[2];
1176 struct pfsync_state_peer src;
1177 struct pfsync_state_peer dst;
1178 struct pf_addr rt_addr;
1179 u_int32_t rule;
1180 u_int32_t anchor;
1181 u_int32_t nat_rule;
1182 u_int32_t creation;
1183 u_int32_t expire;
1184 u_int32_t packets[2][2];
1185 u_int32_t bytes[2][2];
1186 u_int32_t creatorid;
1187 sa_family_t af;
1188 u_int8_t proto;
1189 u_int8_t direction;
1190 u_int8_t __spare[2];
1191 u_int8_t log;
1192 u_int8_t state_flags;
1193 u_int8_t timeout;
1194 u_int8_t sync_flags;
1195 u_int8_t updates;
1196 } __packed;
1197
1198 struct pfsync_state_1400 {
1199 /* The beginning of the struct is compatible with previous versions */
1200 u_int64_t id;
1201 char ifname[IFNAMSIZ];
1202 struct pfsync_state_key key[2];
1203 struct pfsync_state_peer src;
1204 struct pfsync_state_peer dst;
1205 struct pf_addr rt_addr;
1206 u_int32_t rule;
1207 u_int32_t anchor;
1208 u_int32_t nat_rule;
1209 u_int32_t creation;
1210 u_int32_t expire;
1211 u_int32_t packets[2][2];
1212 u_int32_t bytes[2][2];
1213 u_int32_t creatorid;
1214 sa_family_t af;
1215 u_int8_t proto;
1216 u_int8_t direction;
1217 u_int16_t state_flags;
1218 u_int8_t log;
1219 u_int8_t __spare;
1220 u_int8_t timeout;
1221 u_int8_t sync_flags;
1222 u_int8_t updates;
1223 /* The rest is not */
1224 u_int16_t qid;
1225 u_int16_t pqid;
1226 u_int16_t dnpipe;
1227 u_int16_t dnrpipe;
1228 int32_t rtableid;
1229 u_int8_t min_ttl;
1230 u_int8_t set_tos;
1231 u_int16_t max_mss;
1232 u_int8_t set_prio[2];
1233 u_int8_t rt;
1234 char rt_ifname[IFNAMSIZ];
1235
1236 } __packed;
1237
1238 union pfsync_state_union {
1239 struct pfsync_state_1301 pfs_1301;
1240 struct pfsync_state_1400 pfs_1400;
1241 } __packed;
1242
1243 #ifdef _KERNEL
1244 /* pfsync */
1245 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int);
1246 typedef void pfsync_insert_state_t(struct pf_kstate *);
1247 typedef void pfsync_update_state_t(struct pf_kstate *);
1248 typedef void pfsync_delete_state_t(struct pf_kstate *);
1249 typedef void pfsync_clear_states_t(u_int32_t, const char *);
1250 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *);
1251 typedef void pfsync_detach_ifnet_t(struct ifnet *);
1252 typedef void pflow_export_state_t(const struct pf_kstate *);
1253 typedef bool pf_addr_filter_func_t(const sa_family_t, const struct pf_addr *);
1254
1255 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
1256 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
1257 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
1258 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
1259 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
1260 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
1261 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
1262 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
1263 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
1264 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
1265 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
1266 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
1267 VNET_DECLARE(pflow_export_state_t *, pflow_export_state_ptr);
1268 #define V_pflow_export_state_ptr VNET(pflow_export_state_ptr)
1269 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
1270
1271 void pfsync_state_export(union pfsync_state_union *,
1272 struct pf_kstate *, int);
1273 void pf_state_export(struct pf_state_export *,
1274 struct pf_kstate *);
1275
1276 /* pflog */
1277 struct pf_kruleset;
1278 struct pf_pdesc;
1279 typedef int pflog_packet_t(uint8_t, u_int8_t,
1280 struct pf_krule *, struct pf_krule *, struct pf_kruleset *,
1281 struct pf_pdesc *, int, struct pf_krule *);
1282 extern pflog_packet_t *pflog_packet_ptr;
1283
1284 #endif /* _KERNEL */
1285
1286 #define PFSYNC_FLAG_SRCNODE 0x04
1287 #define PFSYNC_FLAG_NATSRCNODE 0x08
1288
1289 /* for copies to/from network byte order */
1290 /* ioctl interface also uses network byte order */
1291 #define pf_state_peer_hton(s,d) do { \
1292 (d)->seqlo = htonl((s)->seqlo); \
1293 (d)->seqhi = htonl((s)->seqhi); \
1294 (d)->seqdiff = htonl((s)->seqdiff); \
1295 (d)->max_win = htons((s)->max_win); \
1296 (d)->mss = htons((s)->mss); \
1297 (d)->state = (s)->state; \
1298 (d)->wscale = (s)->wscale; \
1299 if ((s)->scrub) { \
1300 (d)->scrub.pfss_flags = \
1301 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
1302 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
1303 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
1304 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
1305 } \
1306 } while (0)
1307
1308 #define pf_state_peer_ntoh(s,d) do { \
1309 (d)->seqlo = ntohl((s)->seqlo); \
1310 (d)->seqhi = ntohl((s)->seqhi); \
1311 (d)->seqdiff = ntohl((s)->seqdiff); \
1312 (d)->max_win = ntohs((s)->max_win); \
1313 (d)->mss = ntohs((s)->mss); \
1314 (d)->state = (s)->state; \
1315 (d)->wscale = (s)->wscale; \
1316 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1317 (d)->scrub != NULL) { \
1318 (d)->scrub->pfss_flags = \
1319 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1320 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1321 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
1322 } \
1323 } while (0)
1324
1325 #define pf_state_counter_hton(s,d) do { \
1326 d[0] = htonl((s>>32)&0xffffffff); \
1327 d[1] = htonl(s&0xffffffff); \
1328 } while (0)
1329
1330 #define pf_state_counter_from_pfsync(s) \
1331 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1332
1333 #define pf_state_counter_ntoh(s,d) do { \
1334 d = ntohl(s[0]); \
1335 d = d<<32; \
1336 d += ntohl(s[1]); \
1337 } while (0)
1338
1339 TAILQ_HEAD(pf_krulequeue, pf_krule);
1340
1341 struct pf_kanchor;
1342
1343 struct pf_kruleset {
1344 struct {
1345 struct pf_krulequeue queues[2];
1346 struct {
1347 struct pf_krulequeue *ptr;
1348 struct pf_krule **ptr_array;
1349 u_int32_t rcount;
1350 u_int32_t ticket;
1351 int open;
1352 struct pf_krule_global *tree;
1353 } active, inactive;
1354 } rules[PF_RULESET_MAX];
1355 struct pf_kanchor *anchor;
1356 u_int32_t tticket;
1357 int tables;
1358 int topen;
1359 };
1360
1361 RB_HEAD(pf_kanchor_global, pf_kanchor);
1362 RB_HEAD(pf_kanchor_node, pf_kanchor);
1363 struct pf_kanchor {
1364 RB_ENTRY(pf_kanchor) entry_global;
1365 RB_ENTRY(pf_kanchor) entry_node;
1366 struct pf_kanchor *parent;
1367 struct pf_kanchor_node children;
1368 char name[PF_ANCHOR_NAME_SIZE];
1369 char path[MAXPATHLEN];
1370 struct pf_kruleset ruleset;
1371 int refcnt; /* anchor rules */
1372 };
1373 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare);
1374 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare);
1375
1376 #define PF_RESERVED_ANCHOR "_pf"
1377
1378 #define PFR_TFLAG_PERSIST 0x00000001
1379 #define PFR_TFLAG_CONST 0x00000002
1380 #define PFR_TFLAG_ACTIVE 0x00000004
1381 #define PFR_TFLAG_INACTIVE 0x00000008
1382 #define PFR_TFLAG_REFERENCED 0x00000010
1383 #define PFR_TFLAG_REFDANCHOR 0x00000020
1384 #define PFR_TFLAG_COUNTERS 0x00000040
1385 /* Adjust masks below when adding flags. */
1386 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
1387 PFR_TFLAG_CONST | \
1388 PFR_TFLAG_COUNTERS)
1389 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
1390 PFR_TFLAG_INACTIVE | \
1391 PFR_TFLAG_REFERENCED | \
1392 PFR_TFLAG_REFDANCHOR)
1393 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
1394 PFR_TFLAG_CONST | \
1395 PFR_TFLAG_ACTIVE | \
1396 PFR_TFLAG_INACTIVE | \
1397 PFR_TFLAG_REFERENCED | \
1398 PFR_TFLAG_REFDANCHOR | \
1399 PFR_TFLAG_COUNTERS)
1400
1401 struct pf_kanchor_stackframe;
1402 struct pf_keth_anchor_stackframe;
1403
1404 struct pfr_table {
1405 char pfrt_anchor[MAXPATHLEN];
1406 char pfrt_name[PF_TABLE_NAME_SIZE];
1407 u_int32_t pfrt_flags;
1408 u_int8_t pfrt_fback;
1409 };
1410
1411 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1412 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1413 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1414
1415 struct pfr_addr {
1416 union {
1417 struct in_addr _pfra_ip4addr;
1418 struct in6_addr _pfra_ip6addr;
1419 } pfra_u;
1420 u_int8_t pfra_af;
1421 u_int8_t pfra_net;
1422 u_int8_t pfra_not;
1423 u_int8_t pfra_fback;
1424 };
1425 #define pfra_ip4addr pfra_u._pfra_ip4addr
1426 #define pfra_ip6addr pfra_u._pfra_ip6addr
1427
1428 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1429 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1430 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
1431 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
1432 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1433
1434 struct pfr_astats {
1435 struct pfr_addr pfras_a;
1436 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1437 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1438 time_t pfras_tzero;
1439 };
1440
1441 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1442
1443 struct pfr_tstats {
1444 struct pfr_table pfrts_t;
1445 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1446 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1447 u_int64_t pfrts_match;
1448 u_int64_t pfrts_nomatch;
1449 time_t pfrts_tzero;
1450 int pfrts_cnt;
1451 int pfrts_refcnt[PFR_REFCNT_MAX];
1452 };
1453
1454 #ifdef _KERNEL
1455
1456 struct pfr_kstate_counter {
1457 counter_u64_t pkc_pcpu;
1458 u_int64_t pkc_zero;
1459 };
1460
1461 static inline int
pfr_kstate_counter_init(struct pfr_kstate_counter * pfrc,int flags)1462 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags)
1463 {
1464
1465 pfrc->pkc_zero = 0;
1466 pfrc->pkc_pcpu = counter_u64_alloc(flags);
1467 if (pfrc->pkc_pcpu == NULL)
1468 return (ENOMEM);
1469 return (0);
1470 }
1471
1472 static inline void
pfr_kstate_counter_deinit(struct pfr_kstate_counter * pfrc)1473 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc)
1474 {
1475
1476 counter_u64_free(pfrc->pkc_pcpu);
1477 }
1478
1479 static inline u_int64_t
pfr_kstate_counter_fetch(struct pfr_kstate_counter * pfrc)1480 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc)
1481 {
1482 u_int64_t c;
1483
1484 c = counter_u64_fetch(pfrc->pkc_pcpu);
1485 c -= pfrc->pkc_zero;
1486 return (c);
1487 }
1488
1489 static inline void
pfr_kstate_counter_zero(struct pfr_kstate_counter * pfrc)1490 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc)
1491 {
1492 u_int64_t c;
1493
1494 c = counter_u64_fetch(pfrc->pkc_pcpu);
1495 pfrc->pkc_zero = c;
1496 }
1497
1498 static inline void
pfr_kstate_counter_add(struct pfr_kstate_counter * pfrc,int64_t n)1499 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n)
1500 {
1501
1502 counter_u64_add(pfrc->pkc_pcpu, n);
1503 }
1504
1505 struct pfr_ktstats {
1506 struct pfr_table pfrts_t;
1507 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1508 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1509 struct pfr_kstate_counter pfrkts_match;
1510 struct pfr_kstate_counter pfrkts_nomatch;
1511 time_t pfrkts_tzero;
1512 int pfrkts_cnt;
1513 int pfrkts_refcnt[PFR_REFCNT_MAX];
1514 };
1515
1516 #endif /* _KERNEL */
1517
1518 #define pfrts_name pfrts_t.pfrt_name
1519 #define pfrts_flags pfrts_t.pfrt_flags
1520
1521 #ifndef _SOCKADDR_UNION_DEFINED
1522 #define _SOCKADDR_UNION_DEFINED
1523 union sockaddr_union {
1524 struct sockaddr sa;
1525 struct sockaddr_in sin;
1526 struct sockaddr_in6 sin6;
1527 };
1528 #endif /* _SOCKADDR_UNION_DEFINED */
1529
1530 struct pfr_kcounters {
1531 counter_u64_t pfrkc_counters;
1532 time_t pfrkc_tzero;
1533 };
1534 #define pfr_kentry_counter(kc, dir, op, t) \
1535 ((kc)->pfrkc_counters + \
1536 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
1537
1538 #ifdef _KERNEL
1539 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1540 struct pfr_kentry {
1541 struct radix_node pfrke_node[2];
1542 union sockaddr_union pfrke_sa;
1543 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1544 struct pfr_kcounters pfrke_counters;
1545 u_int8_t pfrke_af;
1546 u_int8_t pfrke_net;
1547 u_int8_t pfrke_not;
1548 u_int8_t pfrke_mark;
1549 };
1550
1551 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1552 RB_HEAD(pfr_ktablehead, pfr_ktable);
1553 struct pfr_ktable {
1554 struct pfr_ktstats pfrkt_kts;
1555 RB_ENTRY(pfr_ktable) pfrkt_tree;
1556 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1557 struct radix_node_head *pfrkt_ip4;
1558 struct radix_node_head *pfrkt_ip6;
1559 struct pfr_ktable *pfrkt_shadow;
1560 struct pfr_ktable *pfrkt_root;
1561 struct pf_kruleset *pfrkt_rs;
1562 long pfrkt_larg;
1563 int pfrkt_nflags;
1564 };
1565 #define pfrkt_t pfrkt_kts.pfrts_t
1566 #define pfrkt_name pfrkt_t.pfrt_name
1567 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1568 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1569 #define pfrkt_flags pfrkt_t.pfrt_flags
1570 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
1571 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
1572 #define pfrkt_packets pfrkt_kts.pfrkts_packets
1573 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
1574 #define pfrkt_match pfrkt_kts.pfrkts_match
1575 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
1576 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
1577 #endif
1578
1579 #ifdef _KERNEL
1580 struct pfi_kkif {
1581 char pfik_name[IFNAMSIZ];
1582 union {
1583 RB_ENTRY(pfi_kkif) _pfik_tree;
1584 LIST_ENTRY(pfi_kkif) _pfik_list;
1585 } _pfik_glue;
1586 #define pfik_tree _pfik_glue._pfik_tree
1587 #define pfik_list _pfik_glue._pfik_list
1588 struct pf_counter_u64 pfik_packets[2][2][2];
1589 struct pf_counter_u64 pfik_bytes[2][2][2];
1590 time_t pfik_tzero;
1591 u_int pfik_flags;
1592 struct ifnet *pfik_ifp;
1593 struct ifg_group *pfik_group;
1594 u_int pfik_rulerefs;
1595 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1596 #ifdef PF_WANT_32_TO_64_COUNTER
1597 LIST_ENTRY(pfi_kkif) pfik_allkiflist;
1598 #endif
1599 };
1600 #endif
1601
1602 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1603 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1604 #define PFI_IFLAG_ANY 0x0200 /* match any non-loopback interface */
1605
1606 #ifdef _KERNEL
1607 struct pf_sctp_multihome_job;
1608 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job);
1609
1610 struct pf_pdesc {
1611 struct {
1612 int done;
1613 uid_t uid;
1614 gid_t gid;
1615 } lookup;
1616 u_int64_t tot_len; /* Make Mickey money */
1617 union pf_headers {
1618 struct tcphdr tcp;
1619 struct udphdr udp;
1620 struct sctphdr sctp;
1621 struct icmp icmp;
1622 #ifdef INET6
1623 struct icmp6_hdr icmp6;
1624 #endif /* INET6 */
1625 char any[0];
1626 } hdr;
1627
1628 struct pf_addr nsaddr; /* src address after NAT */
1629 struct pf_addr ndaddr; /* dst address after NAT */
1630
1631 struct pfi_kkif *kif; /* incomming interface */
1632 struct mbuf *m;
1633
1634 struct pf_addr *src; /* src address */
1635 struct pf_addr *dst; /* dst address */
1636 u_int16_t *pcksum; /* proto cksum */
1637 u_int16_t *sport;
1638 u_int16_t *dport;
1639 u_int16_t osport;
1640 u_int16_t odport;
1641 u_int16_t nsport; /* src port after NAT */
1642 u_int16_t ndport; /* dst port after NAT */
1643 struct pf_mtag *pf_mtag;
1644 struct pf_rule_actions act;
1645
1646 u_int32_t off; /* protocol header offset */
1647 bool df; /* IPv4 Don't fragment flag. */
1648 u_int32_t hdrlen; /* protocol header length */
1649 u_int32_t p_len; /* total length of protocol payload */
1650 u_int32_t extoff; /* extentsion header offset */
1651 u_int32_t fragoff; /* fragment header offset */
1652 u_int32_t jumbolen; /* length from v6 jumbo header */
1653 u_int32_t badopts; /* v4 options or v6 routing headers */
1654
1655 u_int16_t *ip_sum;
1656 u_int16_t flags; /* Let SCRUB trigger behavior in
1657 * state code. Easier than tags */
1658 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1659 u_int16_t virtual_proto;
1660 #define PF_VPROTO_FRAGMENT 256
1661 sa_family_t af;
1662 sa_family_t naf;
1663 u_int8_t proto;
1664 u_int8_t tos;
1665 u_int8_t ttl;
1666 u_int8_t dir; /* direction */
1667 u_int8_t sidx; /* key index for source */
1668 u_int8_t didx; /* key index for destination */
1669 #define PFDESC_SCTP_INIT 0x0001
1670 #define PFDESC_SCTP_INIT_ACK 0x0002
1671 #define PFDESC_SCTP_COOKIE 0x0004
1672 #define PFDESC_SCTP_COOKIE_ACK 0x0008
1673 #define PFDESC_SCTP_ABORT 0x0010
1674 #define PFDESC_SCTP_SHUTDOWN 0x0020
1675 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0040
1676 #define PFDESC_SCTP_DATA 0x0080
1677 #define PFDESC_SCTP_ASCONF 0x0100
1678 #define PFDESC_SCTP_HEARTBEAT 0x0200
1679 #define PFDESC_SCTP_HEARTBEAT_ACK 0x0400
1680 #define PFDESC_SCTP_OTHER 0x0800
1681 #define PFDESC_SCTP_ADD_IP 0x1000
1682 u_int16_t sctp_flags;
1683 u_int32_t sctp_initiate_tag;
1684 u_int16_t sctp_dummy_sum;
1685 struct pf_krule *related_rule;
1686
1687 struct pf_sctp_multihome_jobs sctp_multihome_jobs;
1688 };
1689
1690 struct pf_sctp_multihome_job {
1691 TAILQ_ENTRY(pf_sctp_multihome_job) next;
1692 struct pf_pdesc pd;
1693 struct pf_addr src;
1694 struct pf_addr dst;
1695 int op;
1696 };
1697
1698 #endif
1699
1700 /* flags for RDR options */
1701 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1702 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1703
1704 /* UDP state enumeration */
1705 #define PFUDPS_NO_TRAFFIC 0
1706 #define PFUDPS_SINGLE 1
1707 #define PFUDPS_MULTIPLE 2
1708
1709 #define PFUDPS_NSTATES 3 /* number of state levels */
1710
1711 #define PFUDPS_NAMES { \
1712 "NO_TRAFFIC", \
1713 "SINGLE", \
1714 "MULTIPLE", \
1715 NULL \
1716 }
1717
1718 /* Other protocol state enumeration */
1719 #define PFOTHERS_NO_TRAFFIC 0
1720 #define PFOTHERS_SINGLE 1
1721 #define PFOTHERS_MULTIPLE 2
1722
1723 #define PFOTHERS_NSTATES 3 /* number of state levels */
1724
1725 #define PFOTHERS_NAMES { \
1726 "NO_TRAFFIC", \
1727 "SINGLE", \
1728 "MULTIPLE", \
1729 NULL \
1730 }
1731
1732 #define ACTION_SET(a, x) \
1733 do { \
1734 if ((a) != NULL) \
1735 *(a) = (x); \
1736 } while (0)
1737
1738 #define REASON_SET(a, x) \
1739 do { \
1740 if ((a) != NULL) \
1741 *(a) = (x); \
1742 if (x < PFRES_MAX) \
1743 counter_u64_add(V_pf_status.counters[x], 1); \
1744 } while (0)
1745
1746 enum pf_syncookies_mode {
1747 PF_SYNCOOKIES_NEVER = 0,
1748 PF_SYNCOOKIES_ALWAYS = 1,
1749 PF_SYNCOOKIES_ADAPTIVE = 2,
1750 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE
1751 };
1752
1753 #define PF_SYNCOOKIES_HIWATPCT 25
1754 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2)
1755
1756 #ifdef _KERNEL
1757 struct pf_kstatus {
1758 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1759 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */
1760 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */
1761 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1762 uint32_t states;
1763 uint32_t src_nodes;
1764 uint32_t running;
1765 uint32_t since;
1766 uint32_t debug;
1767 uint32_t hostid;
1768 char ifname[IFNAMSIZ];
1769 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1770 bool keep_counters;
1771 enum pf_syncookies_mode syncookies_mode;
1772 bool syncookies_active;
1773 uint64_t syncookies_inflight[2];
1774 uint32_t states_halfopen;
1775 uint32_t reass;
1776 };
1777 #endif
1778
1779 struct pf_divert {
1780 union {
1781 struct in_addr ipv4;
1782 struct in6_addr ipv6;
1783 } addr;
1784 u_int16_t port;
1785 };
1786
1787 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1788 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1789
1790 struct pf_fragment_tag {
1791 uint16_t ft_hdrlen; /* header length of reassembled pkt */
1792 uint16_t ft_extoff; /* last extension header offset or 0 */
1793 uint16_t ft_maxlen; /* maximum fragment payload length */
1794 uint32_t ft_id; /* fragment id */
1795 };
1796
1797 /*
1798 * Limit the length of the fragment queue traversal. Remember
1799 * search entry points based on the fragment offset.
1800 */
1801 #define PF_FRAG_ENTRY_POINTS 16
1802
1803 /*
1804 * The number of entries in the fragment queue must be limited
1805 * to avoid DoS by linear searching. Instead of a global limit,
1806 * use a limit per entry point. For large packets these sum up.
1807 */
1808 #define PF_FRAG_ENTRY_LIMIT 64
1809
1810 /*
1811 * ioctl parameter structures
1812 */
1813
1814 struct pfioc_pooladdr {
1815 u_int32_t action;
1816 u_int32_t ticket;
1817 u_int32_t nr;
1818 u_int32_t r_num;
1819 u_int8_t r_action;
1820 u_int8_t r_last;
1821 u_int8_t af;
1822 char anchor[MAXPATHLEN];
1823 struct pf_pooladdr addr;
1824 };
1825
1826 struct pfioc_rule {
1827 u_int32_t action;
1828 u_int32_t ticket;
1829 u_int32_t pool_ticket;
1830 u_int32_t nr;
1831 char anchor[MAXPATHLEN];
1832 char anchor_call[MAXPATHLEN];
1833 struct pf_rule rule;
1834 };
1835
1836 struct pfioc_natlook {
1837 struct pf_addr saddr;
1838 struct pf_addr daddr;
1839 struct pf_addr rsaddr;
1840 struct pf_addr rdaddr;
1841 u_int16_t sport;
1842 u_int16_t dport;
1843 u_int16_t rsport;
1844 u_int16_t rdport;
1845 sa_family_t af;
1846 u_int8_t proto;
1847 u_int8_t direction;
1848 };
1849
1850 struct pfioc_state {
1851 struct pfsync_state_1301 state;
1852 };
1853
1854 struct pfioc_src_node_kill {
1855 sa_family_t psnk_af;
1856 struct pf_rule_addr psnk_src;
1857 struct pf_rule_addr psnk_dst;
1858 u_int psnk_killed;
1859 };
1860
1861 #ifdef _KERNEL
1862 struct pf_kstate_kill {
1863 struct pf_state_cmp psk_pfcmp;
1864 sa_family_t psk_af;
1865 int psk_proto;
1866 struct pf_rule_addr psk_src;
1867 struct pf_rule_addr psk_dst;
1868 struct pf_rule_addr psk_rt_addr;
1869 char psk_ifname[IFNAMSIZ];
1870 char psk_label[PF_RULE_LABEL_SIZE];
1871 u_int psk_killed;
1872 bool psk_kill_match;
1873 bool psk_nat;
1874 };
1875 #endif
1876
1877 struct pfioc_state_kill {
1878 struct pf_state_cmp psk_pfcmp;
1879 sa_family_t psk_af;
1880 int psk_proto;
1881 struct pf_rule_addr psk_src;
1882 struct pf_rule_addr psk_dst;
1883 char psk_ifname[IFNAMSIZ];
1884 char psk_label[PF_RULE_LABEL_SIZE];
1885 u_int psk_killed;
1886 };
1887
1888 struct pfioc_states {
1889 int ps_len;
1890 union {
1891 void *ps_buf;
1892 struct pfsync_state_1301 *ps_states;
1893 };
1894 };
1895
1896 struct pfioc_states_v2 {
1897 int ps_len;
1898 uint64_t ps_req_version;
1899 union {
1900 void *ps_buf;
1901 struct pf_state_export *ps_states;
1902 };
1903 };
1904
1905 struct pfioc_src_nodes {
1906 int psn_len;
1907 union {
1908 void *psn_buf;
1909 struct pf_src_node *psn_src_nodes;
1910 };
1911 };
1912
1913 struct pfioc_if {
1914 char ifname[IFNAMSIZ];
1915 };
1916
1917 struct pfioc_tm {
1918 int timeout;
1919 int seconds;
1920 };
1921
1922 struct pfioc_limit {
1923 int index;
1924 unsigned limit;
1925 };
1926
1927 struct pfioc_altq_v0 {
1928 u_int32_t action;
1929 u_int32_t ticket;
1930 u_int32_t nr;
1931 struct pf_altq_v0 altq;
1932 };
1933
1934 struct pfioc_altq_v1 {
1935 u_int32_t action;
1936 u_int32_t ticket;
1937 u_int32_t nr;
1938 /*
1939 * Placed here so code that only uses the above parameters can be
1940 * written entirely in terms of the v0 or v1 type.
1941 */
1942 u_int32_t version;
1943 struct pf_altq_v1 altq;
1944 };
1945
1946 /*
1947 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1948 * the latest version of struct pf_altq_vX as it has that struct as a
1949 * member.
1950 */
1951 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1952
1953 struct pfioc_qstats_v0 {
1954 u_int32_t ticket;
1955 u_int32_t nr;
1956 void *buf;
1957 int nbytes;
1958 u_int8_t scheduler;
1959 };
1960
1961 struct pfioc_qstats_v1 {
1962 u_int32_t ticket;
1963 u_int32_t nr;
1964 void *buf;
1965 int nbytes;
1966 u_int8_t scheduler;
1967 /*
1968 * Placed here so code that only uses the above parameters can be
1969 * written entirely in terms of the v0 or v1 type.
1970 */
1971 u_int32_t version; /* Requested version of stats struct */
1972 };
1973
1974 /* Latest version of struct pfioc_qstats_vX */
1975 #define PFIOC_QSTATS_VERSION 1
1976
1977 struct pfioc_ruleset {
1978 u_int32_t nr;
1979 char path[MAXPATHLEN];
1980 char name[PF_ANCHOR_NAME_SIZE];
1981 };
1982
1983 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1984 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1985 #define PF_RULESET_ETH (PF_RULESET_MAX+2)
1986 struct pfioc_trans {
1987 int size; /* number of elements */
1988 int esize; /* size of each element in bytes */
1989 struct pfioc_trans_e {
1990 int rs_num;
1991 char anchor[MAXPATHLEN];
1992 u_int32_t ticket;
1993 } *array;
1994 };
1995
1996 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1997 #define PFR_FLAG_DUMMY 0x00000002
1998 #define PFR_FLAG_FEEDBACK 0x00000004
1999 #define PFR_FLAG_CLSTATS 0x00000008
2000 #define PFR_FLAG_ADDRSTOO 0x00000010
2001 #define PFR_FLAG_REPLACE 0x00000020
2002 #define PFR_FLAG_ALLRSETS 0x00000040
2003 #define PFR_FLAG_ALLMASK 0x0000007F
2004 #ifdef _KERNEL
2005 #define PFR_FLAG_USERIOCTL 0x10000000
2006 #endif
2007
2008 struct pfioc_table {
2009 struct pfr_table pfrio_table;
2010 void *pfrio_buffer;
2011 int pfrio_esize;
2012 int pfrio_size;
2013 int pfrio_size2;
2014 int pfrio_nadd;
2015 int pfrio_ndel;
2016 int pfrio_nchange;
2017 int pfrio_flags;
2018 u_int32_t pfrio_ticket;
2019 };
2020 #define pfrio_exists pfrio_nadd
2021 #define pfrio_nzero pfrio_nadd
2022 #define pfrio_nmatch pfrio_nadd
2023 #define pfrio_naddr pfrio_size2
2024 #define pfrio_setflag pfrio_size2
2025 #define pfrio_clrflag pfrio_nadd
2026
2027 struct pfioc_iface {
2028 char pfiio_name[IFNAMSIZ];
2029 void *pfiio_buffer;
2030 int pfiio_esize;
2031 int pfiio_size;
2032 int pfiio_nzero;
2033 int pfiio_flags;
2034 };
2035
2036 /*
2037 * ioctl operations
2038 */
2039
2040 #define DIOCSTART _IO ('D', 1)
2041 #define DIOCSTOP _IO ('D', 2)
2042 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
2043 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv)
2044 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
2045 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv)
2046 /* XXX cut 8 - 17 */
2047 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv)
2048 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
2049 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv)
2050 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
2051 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv)
2052 #define DIOCCLRSTATUS _IO ('D', 22)
2053 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
2054 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
2055 #ifdef COMPAT_FREEBSD14
2056 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
2057 #endif
2058 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
2059 /* XXX cut 26 - 28 */
2060 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
2061 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
2062 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
2063 #define DIOCCLRRULECTRS _IO ('D', 38)
2064 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
2065 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
2066 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv)
2067 #define DIOCSTARTALTQ _IO ('D', 42)
2068 #define DIOCSTOPALTQ _IO ('D', 43)
2069 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
2070 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
2071 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
2072 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
2073 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
2074 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
2075 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
2076 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
2077 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
2078 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
2079 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
2080 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
2081 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
2082 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
2083 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
2084 /* XXX cut 55 - 57 */
2085 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
2086 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
2087 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
2088 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
2089 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
2090 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
2091 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
2092 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
2093 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
2094 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
2095 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
2096 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
2097 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
2098 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
2099 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
2100 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
2101 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
2102 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
2103 #define DIOCOSFPFLUSH _IO('D', 78)
2104 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
2105 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
2106 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
2107 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
2108 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
2109 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
2110 #define DIOCCLRSRCNODES _IO('D', 85)
2111 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
2112 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
2113 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
2114 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
2115 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
2116 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
2117 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
2118 #ifdef COMPAT_FREEBSD14
2119 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2)
2120 #endif
2121 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv)
2122 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv)
2123 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv)
2124 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv)
2125 #define DIOCADDETHRULE _IOWR('D', 97, struct pfioc_nv)
2126 #define DIOCGETETHRULE _IOWR('D', 98, struct pfioc_nv)
2127 #define DIOCGETETHRULES _IOWR('D', 99, struct pfioc_nv)
2128 #define DIOCGETETHRULESETS _IOWR('D', 100, struct pfioc_nv)
2129 #define DIOCGETETHRULESET _IOWR('D', 101, struct pfioc_nv)
2130 #define DIOCSETREASS _IOWR('D', 102, u_int32_t)
2131
2132 struct pf_ifspeed_v0 {
2133 char ifname[IFNAMSIZ];
2134 u_int32_t baudrate;
2135 };
2136
2137 struct pf_ifspeed_v1 {
2138 char ifname[IFNAMSIZ];
2139 u_int32_t baudrate32;
2140 /* layout identical to struct pf_ifspeed_v0 up to this point */
2141 u_int64_t baudrate;
2142 };
2143
2144 /* Latest version of struct pf_ifspeed_vX */
2145 #define PF_IFSPEED_VERSION 1
2146
2147 /*
2148 * Compatibility and convenience macros
2149 */
2150 #ifndef _KERNEL
2151 #ifdef PFIOC_USE_LATEST
2152 /*
2153 * Maintaining in-tree consumers of the ioctl interface is easier when that
2154 * code can be written in terms old names that refer to the latest interface
2155 * version as that reduces the required changes in the consumers to those
2156 * that are functionally necessary to accommodate a new interface version.
2157 */
2158 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
2159 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
2160 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
2161
2162 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
2163 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
2164 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
2165 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
2166 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
2167 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
2168 #else
2169 /*
2170 * When building out-of-tree code that is written for the old interface,
2171 * such as may exist in ports for example, resolve the old struct tags and
2172 * ioctl command names to the v0 versions.
2173 */
2174 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
2175 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
2176 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
2177
2178 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
2179 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
2180 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
2181 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
2182 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
2183 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
2184 #endif /* PFIOC_USE_LATEST */
2185 #endif /* _KERNEL */
2186
2187 #ifdef _KERNEL
2188 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node);
2189 struct pf_srchash {
2190 struct pf_ksrc_node_list nodes;
2191 struct mtx lock;
2192 };
2193
2194 struct pf_keyhash {
2195 LIST_HEAD(, pf_state_key) keys;
2196 struct mtx lock;
2197 };
2198
2199 struct pf_idhash {
2200 LIST_HEAD(, pf_kstate) states;
2201 struct mtx lock;
2202 };
2203
2204 struct pf_udpendpointhash {
2205 LIST_HEAD(, pf_udp_endpoint) endpoints;
2206 /* refcont is synchronized on the source endpoint's row lock */
2207 struct mtx lock;
2208 };
2209
2210 extern u_long pf_ioctl_maxcount;
2211 VNET_DECLARE(u_long, pf_hashmask);
2212 #define V_pf_hashmask VNET(pf_hashmask)
2213 VNET_DECLARE(u_long, pf_srchashmask);
2214 #define V_pf_srchashmask VNET(pf_srchashmask)
2215 VNET_DECLARE(u_long, pf_udpendpointhashmask);
2216 #define V_pf_udpendpointhashmask VNET(pf_udpendpointhashmask)
2217 #define PF_HASHSIZ (131072)
2218 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
2219 #define PF_UDPENDHASHSIZ (PF_HASHSIZ/4)
2220 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
2221 VNET_DECLARE(struct pf_idhash *, pf_idhash);
2222 VNET_DECLARE(struct pf_udpendpointhash *, pf_udpendpointhash);
2223 #define V_pf_keyhash VNET(pf_keyhash)
2224 #define V_pf_idhash VNET(pf_idhash)
2225 #define V_pf_udpendpointhash VNET(pf_udpendpointhash)
2226 VNET_DECLARE(struct pf_srchash *, pf_srchash);
2227 #define V_pf_srchash VNET(pf_srchash)
2228
2229 #define PF_IDHASH(s) (be64toh((s)->id) % (V_pf_hashmask + 1))
2230
2231 VNET_DECLARE(void *, pf_swi_cookie);
2232 #define V_pf_swi_cookie VNET(pf_swi_cookie)
2233 VNET_DECLARE(struct intr_event *, pf_swi_ie);
2234 #define V_pf_swi_ie VNET(pf_swi_ie)
2235
2236 VNET_DECLARE(struct unrhdr64, pf_stateid);
2237 #define V_pf_stateid VNET(pf_stateid)
2238
2239 TAILQ_HEAD(pf_altqqueue, pf_altq);
2240 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
2241 #define V_pf_altqs VNET(pf_altqs)
2242 VNET_DECLARE(struct pf_kpalist, pf_pabuf[3]);
2243 #define V_pf_pabuf VNET(pf_pabuf)
2244
2245 VNET_DECLARE(u_int32_t, ticket_altqs_active);
2246 #define V_ticket_altqs_active VNET(ticket_altqs_active)
2247 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
2248 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
2249 VNET_DECLARE(int, altqs_inactive_open);
2250 #define V_altqs_inactive_open VNET(altqs_inactive_open)
2251 VNET_DECLARE(u_int32_t, ticket_pabuf);
2252 #define V_ticket_pabuf VNET(ticket_pabuf)
2253 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
2254 #define V_pf_altqs_active VNET(pf_altqs_active)
2255 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
2256 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
2257 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
2258 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
2259 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
2260 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
2261
2262 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules);
2263 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
2264
2265 #ifdef PF_WANT_32_TO_64_COUNTER
2266 LIST_HEAD(allkiflist_head, pfi_kkif);
2267 VNET_DECLARE(struct allkiflist_head, pf_allkiflist);
2268 #define V_pf_allkiflist VNET(pf_allkiflist)
2269 VNET_DECLARE(size_t, pf_allkifcount);
2270 #define V_pf_allkifcount VNET(pf_allkifcount)
2271 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker);
2272 #define V_pf_kifmarker VNET(pf_kifmarker)
2273
2274 LIST_HEAD(allrulelist_head, pf_krule);
2275 VNET_DECLARE(struct allrulelist_head, pf_allrulelist);
2276 #define V_pf_allrulelist VNET(pf_allrulelist)
2277 VNET_DECLARE(size_t, pf_allrulecount);
2278 #define V_pf_allrulecount VNET(pf_allrulecount)
2279 VNET_DECLARE(struct pf_krule *, pf_rulemarker);
2280 #define V_pf_rulemarker VNET(pf_rulemarker)
2281 #endif
2282
2283 void unhandled_af(int) __dead2;
2284 int pf_start(void);
2285 int pf_stop(void);
2286 void pf_initialize(void);
2287 void pf_mtag_initialize(void);
2288 void pf_mtag_cleanup(void);
2289 void pf_cleanup(void);
2290
2291 struct pf_mtag *pf_get_mtag(struct mbuf *);
2292
2293 extern void pf_calc_skip_steps(struct pf_krulequeue *);
2294 #ifdef ALTQ
2295 extern void pf_altq_ifnet_event(struct ifnet *, int);
2296 #endif
2297 VNET_DECLARE(uma_zone_t, pf_state_z);
2298 #define V_pf_state_z VNET(pf_state_z)
2299 VNET_DECLARE(uma_zone_t, pf_state_key_z);
2300 #define V_pf_state_key_z VNET(pf_state_key_z)
2301 VNET_DECLARE(uma_zone_t, pf_udp_mapping_z);
2302 #define V_pf_udp_mapping_z VNET(pf_udp_mapping_z)
2303 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
2304 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
2305
2306 extern void pf_purge_thread(void *);
2307 extern void pf_unload_vnet_purge(void);
2308 extern void pf_intr(void *);
2309 extern void pf_purge_expired_src_nodes(void);
2310
2311 extern int pf_unlink_state(struct pf_kstate *);
2312 extern int pf_state_insert(struct pfi_kkif *,
2313 struct pfi_kkif *,
2314 struct pf_state_key *,
2315 struct pf_state_key *,
2316 struct pf_kstate *);
2317 extern struct pf_kstate *pf_alloc_state(int);
2318 extern void pf_free_state(struct pf_kstate *);
2319 extern void pf_killstates(struct pf_kstate_kill *,
2320 unsigned int *);
2321 extern unsigned int pf_clear_states(const struct pf_kstate_kill *);
2322
2323 static __inline void
pf_ref_state(struct pf_kstate * s)2324 pf_ref_state(struct pf_kstate *s)
2325 {
2326
2327 refcount_acquire(&s->refs);
2328 }
2329
2330 static __inline int
pf_release_state(struct pf_kstate * s)2331 pf_release_state(struct pf_kstate *s)
2332 {
2333
2334 if (refcount_release(&s->refs)) {
2335 pf_free_state(s);
2336 return (1);
2337 } else
2338 return (0);
2339 }
2340
2341 static __inline int
pf_release_staten(struct pf_kstate * s,u_int n)2342 pf_release_staten(struct pf_kstate *s, u_int n)
2343 {
2344
2345 if (refcount_releasen(&s->refs, n)) {
2346 pf_free_state(s);
2347 return (1);
2348 } else
2349 return (0);
2350 }
2351
2352 static __inline uint64_t
pf_get_uptime(void)2353 pf_get_uptime(void)
2354 {
2355 struct timeval t;
2356 microuptime(&t);
2357 return ((t.tv_sec * 1000) + (t.tv_usec / 1000));
2358 }
2359
2360 static __inline uint64_t
pf_get_time(void)2361 pf_get_time(void)
2362 {
2363 struct timeval t;
2364 microtime(&t);
2365 return ((t.tv_sec * 1000) + (t.tv_usec / 1000));
2366 }
2367
2368 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t);
2369 extern struct pf_kstate *pf_find_state_all(
2370 const struct pf_state_key_cmp *,
2371 u_int, int *);
2372 extern bool pf_find_state_all_exists(
2373 const struct pf_state_key_cmp *,
2374 u_int);
2375 extern struct pf_udp_mapping *pf_udp_mapping_find(struct pf_udp_endpoint_cmp
2376 *endpoint);
2377 extern struct pf_udp_mapping *pf_udp_mapping_create(sa_family_t af,
2378 struct pf_addr *src_addr, uint16_t src_port,
2379 struct pf_addr *nat_addr, uint16_t nat_port);
2380 extern int pf_udp_mapping_insert(struct pf_udp_mapping
2381 *mapping);
2382 extern void pf_udp_mapping_release(struct pf_udp_mapping
2383 *mapping);
2384 uint32_t pf_hashsrc(struct pf_addr *, sa_family_t);
2385 extern bool pf_src_node_exists(struct pf_ksrc_node **,
2386 struct pf_srchash *);
2387 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *,
2388 struct pf_krule *, sa_family_t,
2389 struct pf_srchash **, pf_sn_types_t, bool);
2390 extern void pf_unlink_src_node(struct pf_ksrc_node *);
2391 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *);
2392 extern void pf_print_state(struct pf_kstate *);
2393 extern void pf_print_flags(uint16_t);
2394 extern int pf_addr_wrap_neq(struct pf_addr_wrap *,
2395 struct pf_addr_wrap *);
2396 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
2397 u_int8_t);
2398 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
2399 u_int16_t, u_int16_t, u_int8_t);
2400
2401 VNET_DECLARE(struct ifnet *, sync_ifp);
2402 #define V_sync_ifp VNET(sync_ifp);
2403 VNET_DECLARE(struct pf_krule, pf_default_rule);
2404 #define V_pf_default_rule VNET(pf_default_rule)
2405 extern void pf_addrcpy(struct pf_addr *, const struct pf_addr *,
2406 sa_family_t);
2407 void pf_free_rule(struct pf_krule *);
2408
2409 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
2410 int pf_scan_sctp(struct pf_pdesc *);
2411 #if defined(INET) || defined(INET6)
2412 int pf_test(sa_family_t, int, int, struct ifnet *, struct mbuf **, struct inpcb *,
2413 struct pf_rule_actions *);
2414 #endif
2415 #ifdef INET
2416 int pf_normalize_ip(u_short *, struct pf_pdesc *);
2417 #endif /* INET */
2418
2419 #ifdef INET6
2420 int pf_normalize_ip6(int, u_short *, struct pf_pdesc *);
2421 void pf_poolmask(struct pf_addr *, struct pf_addr*,
2422 struct pf_addr *, struct pf_addr *, sa_family_t);
2423 void pf_addr_inc(struct pf_addr *, sa_family_t);
2424 int pf_max_frag_size(struct mbuf *);
2425 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *,
2426 struct ifnet *, bool);
2427 #endif /* INET6 */
2428
2429 int pf_multihome_scan_init(int, int, struct pf_pdesc *);
2430 int pf_multihome_scan_asconf(int, int, struct pf_pdesc *);
2431
2432 u_int32_t pf_new_isn(struct pf_kstate *);
2433 void *pf_pull_hdr(const struct mbuf *, int, void *, int, u_short *, u_short *,
2434 sa_family_t);
2435 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
2436 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
2437 u_int8_t);
2438 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
2439 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t,
2440 bool, u_int8_t);
2441 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t,
2442 bool, u_int8_t);
2443 void pf_send_deferred_syn(struct pf_kstate *);
2444 int pf_match_addr(u_int8_t, const struct pf_addr *,
2445 const struct pf_addr *, const struct pf_addr *, sa_family_t);
2446 int pf_match_addr_range(const struct pf_addr *, const struct pf_addr *,
2447 const struct pf_addr *, sa_family_t);
2448 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
2449
2450 void pf_normalize_init(void);
2451 void pf_normalize_cleanup(void);
2452 int pf_normalize_tcp(struct pf_pdesc *);
2453 void pf_normalize_tcp_cleanup(struct pf_kstate *);
2454 int pf_normalize_tcp_init(struct pf_pdesc *,
2455 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
2456 int pf_normalize_tcp_stateful(struct pf_pdesc *,
2457 u_short *, struct tcphdr *, struct pf_kstate *,
2458 struct pf_state_peer *, struct pf_state_peer *, int *);
2459 int pf_normalize_sctp_init(struct pf_pdesc *,
2460 struct pf_state_peer *, struct pf_state_peer *);
2461 int pf_normalize_sctp(struct pf_pdesc *);
2462 u_int32_t
2463 pf_state_expires(const struct pf_kstate *);
2464 void pf_purge_expired_fragments(void);
2465 void pf_purge_fragments(uint32_t);
2466 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *,
2467 int);
2468 int pf_socket_lookup(struct pf_pdesc *);
2469 struct pf_state_key *pf_alloc_state_key(int);
2470 int pf_translate(struct pf_pdesc *, struct pf_addr *, u_int16_t,
2471 struct pf_addr *, u_int16_t, u_int16_t, int);
2472 int pf_translate_af(struct pf_pdesc *);
2473 void pfr_initialize(void);
2474 void pfr_cleanup(void);
2475 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
2476 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
2477 u_int64_t, int, int, int);
2478 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t,
2479 pf_addr_filter_func_t);
2480 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
2481 struct pfr_ktable *
2482 pfr_attach_table(struct pf_kruleset *, char *);
2483 struct pfr_ktable *
2484 pfr_eth_attach_table(struct pf_keth_ruleset *, char *);
2485 void pfr_detach_table(struct pfr_ktable *);
2486 int pfr_clr_tables(struct pfr_table *, int *, int);
2487 int pfr_add_tables(struct pfr_table *, int, int *, int);
2488 int pfr_del_tables(struct pfr_table *, int, int *, int);
2489 int pfr_table_count(struct pfr_table *, int);
2490 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
2491 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
2492 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
2493 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
2494 int pfr_clr_addrs(struct pfr_table *, int *, int);
2495 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, time_t);
2496 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2497 int);
2498 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2499 int);
2500 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2501 int *, int *, int *, int, u_int32_t);
2502 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
2503 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
2504 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
2505 int);
2506 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2507 int);
2508 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
2509 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
2510 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
2511 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
2512 int *, u_int32_t, int);
2513
2514 MALLOC_DECLARE(PFI_MTYPE);
2515 VNET_DECLARE(struct pfi_kkif *, pfi_all);
2516 #define V_pfi_all VNET(pfi_all)
2517
2518 void pfi_initialize(void);
2519 void pfi_initialize_vnet(void);
2520 void pfi_cleanup(void);
2521 void pfi_cleanup_vnet(void);
2522 void pfi_kkif_ref(struct pfi_kkif *);
2523 void pfi_kkif_unref(struct pfi_kkif *);
2524 struct pfi_kkif *pfi_kkif_find(const char *);
2525 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *);
2526 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *);
2527 void pfi_kkif_purge(void);
2528 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2529 sa_family_t);
2530 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2531 void pfi_dynaddr_remove(struct pfi_dynaddr *);
2532 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2533 void pfi_update_status(const char *, struct pf_status *);
2534 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
2535 int pfi_set_flags(const char *, int);
2536 int pfi_clear_flags(const char *, int);
2537
2538 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int);
2539 int pf_tag_packet(struct pf_pdesc *, int);
2540 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
2541 sa_family_t);
2542
2543 u_int16_t pf_get_mss(struct pf_pdesc *);
2544 u_int8_t pf_get_wscale(struct pf_pdesc *);
2545 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t,
2546 const struct pf_addr *, const struct pf_addr *,
2547 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2548 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int,
2549 u_int16_t, u_int16_t, int);
2550 void pf_send_tcp(const struct pf_krule *, sa_family_t,
2551 const struct pf_addr *, const struct pf_addr *,
2552 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2553 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int,
2554 u_int16_t, u_int16_t, int);
2555
2556 void pf_syncookies_init(void);
2557 void pf_syncookies_cleanup(void);
2558 int pf_get_syncookies(struct pfioc_nv *);
2559 int pf_set_syncookies(struct pfioc_nv *);
2560 int pf_synflood_check(struct pf_pdesc *);
2561 void pf_syncookie_send(struct pf_pdesc *);
2562 bool pf_syncookie_check(struct pf_pdesc *);
2563 u_int8_t pf_syncookie_validate(struct pf_pdesc *);
2564 struct mbuf * pf_syncookie_recreate_syn(struct pf_pdesc *);
2565
2566 VNET_DECLARE(struct pf_kstatus, pf_status);
2567 #define V_pf_status VNET(pf_status)
2568
2569 struct pf_limit {
2570 uma_zone_t zone;
2571 u_int limit;
2572 };
2573 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
2574 #define V_pf_limits VNET(pf_limits)
2575
2576 #endif /* _KERNEL */
2577
2578 #ifdef _KERNEL
2579 struct pf_nl_pooladdr {
2580 u_int32_t action;
2581 u_int32_t ticket;
2582 u_int32_t nr;
2583 u_int32_t r_num;
2584 u_int8_t r_action;
2585 u_int8_t r_last;
2586 u_int8_t af;
2587 char anchor[MAXPATHLEN];
2588 struct pf_pooladdr addr;
2589 /* Above this is identical to pfioc_pooladdr */
2590 int which;
2591 };
2592
2593 VNET_DECLARE(struct pf_kanchor_global, pf_anchors);
2594 #define V_pf_anchors VNET(pf_anchors)
2595 VNET_DECLARE(struct pf_kanchor, pf_main_anchor);
2596 #define V_pf_main_anchor VNET(pf_main_anchor)
2597 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors);
2598 #define V_pf_keth_anchors VNET(pf_keth_anchors)
2599 #define pf_main_ruleset V_pf_main_anchor.ruleset
2600
2601 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor);
2602 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor)
2603 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth);
2604 #define V_pf_keth VNET(pf_keth)
2605
2606 void pf_init_kruleset(struct pf_kruleset *);
2607 void pf_init_keth(struct pf_keth_ruleset *);
2608 int pf_kanchor_setup(struct pf_krule *,
2609 const struct pf_kruleset *, const char *);
2610 int pf_kanchor_copyout(const struct pf_kruleset *,
2611 const struct pf_krule *, char *, size_t);
2612 int pf_kanchor_nvcopyout(const struct pf_kruleset *,
2613 const struct pf_krule *, nvlist_t *);
2614 void pf_kanchor_remove(struct pf_krule *);
2615 void pf_remove_if_empty_kruleset(struct pf_kruleset *);
2616 struct pf_kruleset *pf_find_kruleset(const char *);
2617 struct pf_kruleset *pf_find_or_create_kruleset(const char *);
2618 void pf_rs_initialize(void);
2619
2620
2621 struct pf_krule *pf_krule_alloc(void);
2622
2623 void pf_remove_if_empty_keth_ruleset(
2624 struct pf_keth_ruleset *);
2625 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *);
2626 struct pf_keth_anchor *pf_find_keth_anchor(const char *);
2627 int pf_keth_anchor_setup(struct pf_keth_rule *,
2628 const struct pf_keth_ruleset *, const char *);
2629 int pf_keth_anchor_nvcopyout(
2630 const struct pf_keth_ruleset *,
2631 const struct pf_keth_rule *, nvlist_t *);
2632 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *);
2633 void pf_keth_anchor_remove(struct pf_keth_rule *);
2634
2635 int pf_ioctl_getrules(struct pfioc_rule *);
2636 int pf_ioctl_addrule(struct pf_krule *, uint32_t,
2637 uint32_t, const char *, const char *, uid_t uid,
2638 pid_t);
2639 void pf_ioctl_clear_status(void);
2640 int pf_ioctl_get_timeout(int, int *);
2641 int pf_ioctl_set_timeout(int, int, int *);
2642 int pf_ioctl_get_limit(int, unsigned int *);
2643 int pf_ioctl_set_limit(int, unsigned int, unsigned int *);
2644 int pf_ioctl_begin_addrs(uint32_t *);
2645 int pf_ioctl_add_addr(struct pf_nl_pooladdr *);
2646 int pf_ioctl_get_addrs(struct pf_nl_pooladdr *);
2647 int pf_ioctl_get_addr(struct pf_nl_pooladdr *);
2648 int pf_ioctl_get_rulesets(struct pfioc_ruleset *);
2649 int pf_ioctl_get_ruleset(struct pfioc_ruleset *);
2650
2651 void pf_krule_free(struct pf_krule *);
2652 void pf_krule_clear_counters(struct pf_krule *);
2653 void pf_addr_copyout(struct pf_addr_wrap *);
2654 #endif
2655
2656 /* The fingerprint functions can be linked into userland programs (tcpdump) */
2657 int pf_osfp_add(struct pf_osfp_ioctl *);
2658 #ifdef _KERNEL
2659 struct pf_osfp_enlist *
2660 pf_osfp_fingerprint(struct pf_pdesc *, const struct tcphdr *);
2661 #endif /* _KERNEL */
2662 void pf_osfp_flush(void);
2663 int pf_osfp_get(struct pf_osfp_ioctl *);
2664 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2665
2666 #ifdef _KERNEL
2667 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t);
2668
2669 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *,
2670 struct pf_kruleset **, int, struct pf_krule **,
2671 struct pf_krule **);
2672 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *,
2673 struct pf_kruleset **, int, struct pf_krule **,
2674 struct pf_krule **, int *);
2675 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *,
2676 int *, struct pf_keth_ruleset **,
2677 struct pf_keth_rule **, struct pf_keth_rule **,
2678 int *);
2679 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *,
2680 int *, struct pf_keth_ruleset **,
2681 struct pf_keth_rule **, struct pf_keth_rule **,
2682 int *);
2683
2684 u_short pf_map_addr(u_int8_t, struct pf_krule *,
2685 struct pf_addr *, struct pf_addr *,
2686 struct pfi_kkif **nkif, struct pf_addr *,
2687 struct pf_kpool *);
2688 u_short pf_map_addr_sn(u_int8_t, struct pf_krule *,
2689 struct pf_addr *, struct pf_addr *,
2690 struct pfi_kkif **nkif, struct pf_addr *,
2691 struct pf_ksrc_node **, struct pf_srchash **,
2692 struct pf_kpool *, pf_sn_types_t);
2693 int pf_get_transaddr_af(struct pf_krule *,
2694 struct pf_pdesc *);
2695 u_short pf_get_translation(struct pf_pdesc *,
2696 int, struct pf_state_key **, struct pf_state_key **,
2697 struct pf_kanchor_stackframe *, struct pf_krule **,
2698 struct pf_udp_mapping **udp_mapping);
2699
2700 int pf_state_key_setup(struct pf_pdesc *,
2701 u_int16_t, u_int16_t,
2702 struct pf_state_key **sk, struct pf_state_key **nk);
2703 struct pf_state_key *pf_state_key_clone(const struct pf_state_key *);
2704 void pf_rule_to_actions(struct pf_krule *,
2705 struct pf_rule_actions *);
2706 int pf_normalize_mss(struct pf_pdesc *pd);
2707 #if defined(INET) || defined(INET6)
2708 void pf_scrub(struct pf_pdesc *);
2709 #endif
2710
2711 struct pfi_kkif *pf_kkif_create(int);
2712 void pf_kkif_free(struct pfi_kkif *);
2713 void pf_kkif_zero(struct pfi_kkif *);
2714
2715
2716 /* NAT64 functions. */
2717 int inet_nat64(int, const void *, void *, const void *, u_int8_t);
2718 int inet_nat64_inet(const void *, void *, const void *, u_int8_t);
2719 int inet_nat64_inet6(const void *, void *, const void *, u_int8_t);
2720
2721 int inet_nat46(int, const void *, void *, const void *, u_int8_t);
2722 int inet_nat46_inet(const void *, void *, const void *, u_int8_t);
2723 int inet_nat46_inet6(const void *, void *, const void *, u_int8_t);
2724
2725 #endif /* _KERNEL */
2726
2727 #endif /* _NET_PFVAR_H_ */
2728