2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2001 Daniel Hartmeier
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
31 * $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $
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>
44 #include <sys/refcount.h>
46 #include <sys/sysctl.h>
49 #include <sys/rmlock.h>
55 #include <net/ethernet.h>
56 #include <net/radix.h>
57 #include <netinet/in.h>
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>
67 #include <netpfil/pf/pf.h>
68 #include <netpfil/pf/pf_altq.h>
69 #include <netpfil/pf/pf_mtag.h>
74 #define PF_WANT_32_TO_64_COUNTER
78 * A hybrid of 32-bit and 64-bit counters which can be used on platforms where
79 * counter(9) is very expensive.
81 * As 32-bit counters are expected to overflow, a periodic job sums them up to
82 * a saved 64-bit state. Fetching the value still walks all CPUs to get the most
85 #ifdef PF_WANT_32_TO_64_COUNTER
86 struct pf_counter_u64_pcpu {
91 struct pf_counter_u64 {
92 struct pf_counter_u64_pcpu *pfcu64_pcpu;
93 u_int64_t pfcu64_value;
98 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
101 pfcu64->pfcu64_value = 0;
102 pfcu64->pfcu64_seqc = 0;
103 pfcu64->pfcu64_pcpu = uma_zalloc_pcpu(pcpu_zone_8, flags | M_ZERO);
104 if (__predict_false(pfcu64->pfcu64_pcpu == NULL))
110 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
113 uma_zfree_pcpu(pcpu_zone_8, pfcu64->pfcu64_pcpu);
117 pf_counter_u64_critical_enter(void)
124 pf_counter_u64_critical_exit(void)
131 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
133 struct pf_counter_u64_pcpu *pcpu;
136 MPASS(curthread->td_critnest > 0);
137 pcpu = zpcpu_get(pfcu64->pfcu64_pcpu);
138 val = atomic_load_int(&pcpu->current);
139 atomic_store_int(&pcpu->current, val + n);
143 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
147 pf_counter_u64_add_protected(pfcu64, n);
151 static inline u_int64_t
152 pf_counter_u64_periodic(struct pf_counter_u64 *pfcu64)
154 struct pf_counter_u64_pcpu *pcpu;
159 MPASS(curthread->td_critnest > 0);
160 seqc_write_begin(&pfcu64->pfcu64_seqc);
161 sum = pfcu64->pfcu64_value;
163 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
164 val = atomic_load_int(&pcpu->current);
165 sum += (uint32_t)(val - pcpu->snapshot);
166 pcpu->snapshot = val;
168 pfcu64->pfcu64_value = sum;
169 seqc_write_end(&pfcu64->pfcu64_seqc);
173 static inline u_int64_t
174 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64)
176 struct pf_counter_u64_pcpu *pcpu;
182 seqc = seqc_read(&pfcu64->pfcu64_seqc);
185 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
186 sum += (uint32_t)(atomic_load_int(&pcpu->current) -pcpu->snapshot);
188 sum += pfcu64->pfcu64_value;
189 if (seqc_consistent(&pfcu64->pfcu64_seqc, seqc))
196 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
198 struct pf_counter_u64_pcpu *pcpu;
201 MPASS(curthread->td_critnest > 0);
202 seqc_write_begin(&pfcu64->pfcu64_seqc);
204 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
205 pcpu->snapshot = atomic_load_int(&pcpu->current);
207 pfcu64->pfcu64_value = 0;
208 seqc_write_end(&pfcu64->pfcu64_seqc);
212 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
216 pf_counter_u64_zero_protected(pfcu64);
220 struct pf_counter_u64 {
221 counter_u64_t counter;
225 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
228 pfcu64->counter = counter_u64_alloc(flags);
229 if (__predict_false(pfcu64->counter == NULL))
235 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
238 counter_u64_free(pfcu64->counter);
242 pf_counter_u64_critical_enter(void)
248 pf_counter_u64_critical_exit(void)
254 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
257 counter_u64_add(pfcu64->counter, n);
261 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
264 pf_counter_u64_add_protected(pfcu64, n);
267 static inline u_int64_t
268 pf_counter_u64_fetch(const struct pf_counter_u64 *pfcu64)
271 return (counter_u64_fetch(pfcu64->counter));
275 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
278 counter_u64_zero(pfcu64->counter);
282 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
285 pf_counter_u64_zero_protected(pfcu64);
289 #define pf_get_timestamp(prule)({ \
294 __ts = *zpcpu_get_cpu(prule->timestamp, cpu); \
301 #define pf_update_timestamp(prule) \
304 *zpcpu_get((prule)->timestamp) = time_second; \
308 #define pf_timestamp_pcpu_zone (sizeof(time_t) == 4 ? pcpu_zone_4 : pcpu_zone_8)
309 _Static_assert(sizeof(time_t) == 4 || sizeof(time_t) == 8, "unexpected time_t size");
311 SYSCTL_DECL(_net_pf);
312 MALLOC_DECLARE(M_PFHASH);
313 MALLOC_DECLARE(M_PF_RULE_ITEM);
315 SDT_PROVIDER_DECLARE(pf);
318 TAILQ_ENTRY(pfi_dynaddr) entry;
319 struct pf_addr pfid_addr4;
320 struct pf_addr pfid_mask4;
321 struct pf_addr pfid_addr6;
322 struct pf_addr pfid_mask6;
323 struct pfr_ktable *pfid_kt;
324 struct pfi_kkif *pfid_kif;
325 int pfid_net; /* mask or 128 */
326 int pfid_acnt4; /* address count IPv4 */
327 int pfid_acnt6; /* address count IPv6 */
328 sa_family_t pfid_af; /* rule af */
329 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
333 * Address manipulation macros
335 #define HTONL(x) (x) = htonl((__uint32_t)(x))
336 #define HTONS(x) (x) = htons((__uint16_t)(x))
337 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
338 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
342 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
343 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
344 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
347 #define PF_STATE_LOCK(s) \
349 struct pf_kstate *_s = (s); \
350 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
351 MPASS(_s->lock == &_ih->lock); \
352 mtx_lock(_s->lock); \
354 #define PF_STATE_UNLOCK(s) \
356 struct pf_kstate *_s = (s); \
357 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
358 MPASS(_s->lock == &_ih->lock); \
359 mtx_unlock(_s->lock); \
362 #define PF_STATE_LOCK(s) mtx_lock(s->lock)
363 #define PF_STATE_UNLOCK(s) mtx_unlock(s->lock)
367 #define PF_STATE_LOCK_ASSERT(s) \
369 struct pf_kstate *_s = (s); \
370 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
371 MPASS(_s->lock == &_ih->lock); \
372 PF_HASHROW_ASSERT(_ih); \
374 #else /* !INVARIANTS */
375 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
376 #endif /* INVARIANTS */
379 #define PF_SRC_NODE_LOCK(sn) \
381 struct pf_ksrc_node *_sn = (sn); \
382 struct pf_srchash *_sh = &V_pf_srchash[ \
383 pf_hashsrc(&_sn->addr, _sn->af)]; \
384 MPASS(_sn->lock == &_sh->lock); \
385 mtx_lock(_sn->lock); \
387 #define PF_SRC_NODE_UNLOCK(sn) \
389 struct pf_ksrc_node *_sn = (sn); \
390 struct pf_srchash *_sh = &V_pf_srchash[ \
391 pf_hashsrc(&_sn->addr, _sn->af)]; \
392 MPASS(_sn->lock == &_sh->lock); \
393 mtx_unlock(_sn->lock); \
396 #define PF_SRC_NODE_LOCK(sn) mtx_lock((sn)->lock)
397 #define PF_SRC_NODE_UNLOCK(sn) mtx_unlock((sn)->lock)
401 #define PF_SRC_NODE_LOCK_ASSERT(sn) \
403 struct pf_ksrc_node *_sn = (sn); \
404 struct pf_srchash *_sh = &V_pf_srchash[ \
405 pf_hashsrc(&_sn->addr, _sn->af)]; \
406 MPASS(_sn->lock == &_sh->lock); \
407 PF_HASHROW_ASSERT(_sh); \
409 #else /* !INVARIANTS */
410 #define PF_SRC_NODE_LOCK_ASSERT(sn) do {} while (0)
411 #endif /* INVARIANTS */
413 extern struct mtx_padalign pf_unlnkdrules_mtx;
414 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
415 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
416 #define PF_UNLNKDRULES_ASSERT() mtx_assert(&pf_unlnkdrules_mtx, MA_OWNED)
418 extern struct sx pf_config_lock;
419 #define PF_CONFIG_LOCK() sx_xlock(&pf_config_lock)
420 #define PF_CONFIG_UNLOCK() sx_xunlock(&pf_config_lock)
421 #define PF_CONFIG_ASSERT() sx_assert(&pf_config_lock, SA_XLOCKED)
423 VNET_DECLARE(struct rmlock, pf_rules_lock);
424 #define V_pf_rules_lock VNET(pf_rules_lock)
426 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
427 #define PF_RULES_RLOCK() rm_rlock(&V_pf_rules_lock, &_pf_rules_tracker)
428 #define PF_RULES_RUNLOCK() rm_runlock(&V_pf_rules_lock, &_pf_rules_tracker)
429 #define PF_RULES_WLOCK() rm_wlock(&V_pf_rules_lock)
430 #define PF_RULES_WUNLOCK() rm_wunlock(&V_pf_rules_lock)
431 #define PF_RULES_WOWNED() rm_wowned(&V_pf_rules_lock)
432 #define PF_RULES_ASSERT() rm_assert(&V_pf_rules_lock, RA_LOCKED)
433 #define PF_RULES_RASSERT() rm_assert(&V_pf_rules_lock, RA_RLOCKED)
434 #define PF_RULES_WASSERT() rm_assert(&V_pf_rules_lock, RA_WLOCKED)
436 extern struct mtx_padalign pf_table_stats_lock;
437 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock)
438 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock)
439 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock)
440 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_table_stats_lock, MA_OWNED)
442 extern struct sx pf_end_lock;
445 #define PFLOG_MODVER 1
446 #define PFSYNC_MODVER 1
448 #define PFLOG_MINVER 1
449 #define PFLOG_PREFVER PFLOG_MODVER
450 #define PFLOG_MAXVER 1
451 #define PFSYNC_MINVER 1
452 #define PFSYNC_PREFVER PFSYNC_MODVER
453 #define PFSYNC_MAXVER 1
463 #define PF_INET6_ONLY
469 #define PF_INET_INET6
475 #define PF_INET_INET6
479 /* Both IPv4 and IPv6 */
482 #define PF_AEQ(a, b, c) \
483 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
484 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
485 (a)->addr32[2] == (b)->addr32[2] && \
486 (a)->addr32[1] == (b)->addr32[1] && \
487 (a)->addr32[0] == (b)->addr32[0])) \
489 #define PF_ANEQ(a, b, c) \
490 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
491 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
492 (a)->addr32[1] != (b)->addr32[1] || \
493 (a)->addr32[2] != (b)->addr32[2] || \
494 (a)->addr32[3] != (b)->addr32[3]))) \
496 #define PF_AZERO(a, c) \
497 ((c == AF_INET && !(a)->addr32[0]) || \
498 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
499 !(a)->addr32[2] && !(a)->addr32[3] )) \
501 #define PF_MATCHA(n, a, m, b, f) \
502 pf_match_addr(n, a, m, b, f)
504 #define PF_ACPY(a, b, f) \
507 #define PF_AINC(a, f) \
510 #define PF_POOLMASK(a, b, c, d, f) \
511 pf_poolmask(a, b, c, d, f)
519 #define PF_AEQ(a, b, c) \
520 ((a)->addr32[3] == (b)->addr32[3] && \
521 (a)->addr32[2] == (b)->addr32[2] && \
522 (a)->addr32[1] == (b)->addr32[1] && \
523 (a)->addr32[0] == (b)->addr32[0]) \
525 #define PF_ANEQ(a, b, c) \
526 ((a)->addr32[3] != (b)->addr32[3] || \
527 (a)->addr32[2] != (b)->addr32[2] || \
528 (a)->addr32[1] != (b)->addr32[1] || \
529 (a)->addr32[0] != (b)->addr32[0]) \
531 #define PF_AZERO(a, c) \
532 (!(a)->addr32[0] && \
537 #define PF_MATCHA(n, a, m, b, f) \
538 pf_match_addr(n, a, m, b, f)
540 #define PF_ACPY(a, b, f) \
543 #define PF_AINC(a, f) \
546 #define PF_POOLMASK(a, b, c, d, f) \
547 pf_poolmask(a, b, c, d, f)
554 #define PF_AEQ(a, b, c) \
555 ((a)->addr32[0] == (b)->addr32[0])
557 #define PF_ANEQ(a, b, c) \
558 ((a)->addr32[0] != (b)->addr32[0])
560 #define PF_AZERO(a, c) \
563 #define PF_MATCHA(n, a, m, b, f) \
564 pf_match_addr(n, a, m, b, f)
566 #define PF_ACPY(a, b, f) \
567 (a)->v4.s_addr = (b)->v4.s_addr
569 #define PF_AINC(a, f) \
571 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
574 #define PF_POOLMASK(a, b, c, d, f) \
576 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
577 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
580 #endif /* PF_INET_ONLY */
581 #endif /* PF_INET6_ONLY */
582 #endif /* PF_INET_INET6 */
585 * XXX callers not FIB-aware in our version of pf yet.
586 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
588 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
590 (((aw)->type == PF_ADDR_NOROUTE && \
591 pf_routable((x), (af), NULL, (rtid))) || \
592 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
593 pf_routable((x), (af), (ifp), (rtid))) || \
594 ((aw)->type == PF_ADDR_TABLE && \
595 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
596 ((aw)->type == PF_ADDR_DYNIFTL && \
597 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
598 ((aw)->type == PF_ADDR_RANGE && \
599 !pf_match_addr_range(&(aw)->v.a.addr, \
600 &(aw)->v.a.mask, (x), (af))) || \
601 ((aw)->type == PF_ADDR_ADDRMASK && \
602 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
603 !PF_MATCHA(0, &(aw)->v.a.addr, \
604 &(aw)->v.a.mask, (x), (af))))) != \
608 #define PF_ALGNMNT(off) (((off) % 2) == 0)
612 struct pf_kpooladdr {
613 struct pf_addr_wrap addr;
614 TAILQ_ENTRY(pf_kpooladdr) entries;
615 char ifname[IFNAMSIZ];
616 struct pfi_kkif *kif;
619 TAILQ_HEAD(pf_kpalist, pf_kpooladdr);
623 struct pf_kpalist list;
624 struct pf_kpooladdr *cur;
625 struct pf_poolhashkey key;
626 struct pf_addr counter;
627 struct pf_mape_portset mape;
629 u_int16_t proxy_port[2];
633 struct pf_rule_actions {
642 uint16_t dnrpipe; /* Reverse direction pipe */
647 union pf_keth_rule_ptr {
648 struct pf_keth_rule *ptr;
652 struct pf_keth_rule_addr {
653 uint8_t addr[ETHER_ADDR_LEN];
654 uint8_t mask[ETHER_ADDR_LEN];
659 struct pf_keth_anchor;
661 TAILQ_HEAD(pf_keth_ruleq, pf_keth_rule);
663 struct pf_keth_ruleset {
664 struct pf_keth_ruleq rules[2];
665 struct pf_keth_rules {
666 struct pf_keth_ruleq *rules;
670 struct epoch_context epoch_ctx;
672 struct pf_keth_anchor *anchor;
675 RB_HEAD(pf_keth_anchor_global, pf_keth_anchor);
676 RB_HEAD(pf_keth_anchor_node, pf_keth_anchor);
677 struct pf_keth_anchor {
678 RB_ENTRY(pf_keth_anchor) entry_node;
679 RB_ENTRY(pf_keth_anchor) entry_global;
680 struct pf_keth_anchor *parent;
681 struct pf_keth_anchor_node children;
682 char name[PF_ANCHOR_NAME_SIZE];
683 char path[MAXPATHLEN];
684 struct pf_keth_ruleset ruleset;
685 int refcnt; /* anchor rules */
686 uint8_t anchor_relative;
687 uint8_t anchor_wildcard;
689 RB_PROTOTYPE(pf_keth_anchor_node, pf_keth_anchor, entry_node,
690 pf_keth_anchor_compare);
691 RB_PROTOTYPE(pf_keth_anchor_global, pf_keth_anchor, entry_global,
692 pf_keth_anchor_compare);
694 struct pf_keth_rule {
695 #define PFE_SKIP_IFP 0
696 #define PFE_SKIP_DIR 1
697 #define PFE_SKIP_PROTO 2
698 #define PFE_SKIP_SRC_ADDR 3
699 #define PFE_SKIP_DST_ADDR 4
700 #define PFE_SKIP_SRC_IP_ADDR 5
701 #define PFE_SKIP_DST_IP_ADDR 6
702 #define PFE_SKIP_COUNT 7
703 union pf_keth_rule_ptr skip[PFE_SKIP_COUNT];
705 TAILQ_ENTRY(pf_keth_rule) entries;
707 struct pf_keth_anchor *anchor;
708 u_int8_t anchor_relative;
709 u_int8_t anchor_wildcard;
716 char ifname[IFNAMSIZ];
717 struct pfi_kkif *kif;
721 struct pf_keth_rule_addr src, dst;
722 struct pf_rule_addr ipsrc, ipdst;
723 char match_tagname[PF_TAG_NAME_SIZE];
729 counter_u64_t evaluations;
730 counter_u64_t packets[2];
731 counter_u64_t bytes[2];
735 char qname[PF_QNAME_SIZE];
737 char tagname[PF_TAG_NAME_SIZE];
739 char bridge_to_name[IFNAMSIZ];
740 struct pfi_kkif *bridge_to;
745 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
746 uint32_t ridentifier;
750 struct pf_krule *ptr;
754 RB_HEAD(pf_krule_global, pf_krule);
755 RB_PROTOTYPE(pf_krule_global, pf_krule, entry_global, pf_krule_compare);
758 struct pf_rule_addr src;
759 struct pf_rule_addr dst;
760 union pf_krule_ptr skip[PF_SKIP_COUNT];
761 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
762 uint32_t ridentifier;
763 char ifname[IFNAMSIZ];
764 char qname[PF_QNAME_SIZE];
765 char pqname[PF_QNAME_SIZE];
766 char tagname[PF_TAG_NAME_SIZE];
767 char match_tagname[PF_TAG_NAME_SIZE];
769 char overload_tblname[PF_TABLE_NAME_SIZE];
771 TAILQ_ENTRY(pf_krule) entries;
772 struct pf_kpool rpool;
774 struct pf_counter_u64 evaluations;
775 struct pf_counter_u64 packets[2];
776 struct pf_counter_u64 bytes[2];
779 struct pfi_kkif *kif;
780 struct pf_kanchor *anchor;
781 struct pfr_ktable *overload_tbl;
783 pf_osfp_t os_fingerprint;
786 u_int32_t timeout[PFTM_MAX];
787 u_int32_t max_states;
788 u_int32_t max_src_nodes;
789 u_int32_t max_src_states;
790 u_int32_t max_src_conn;
799 u_int32_t free_flags;
805 counter_u64_t states_cur;
806 counter_u64_t states_tot;
807 counter_u64_t src_nodes;
809 u_int16_t return_icmp;
810 u_int16_t return_icmp6;
814 u_int16_t scrub_flags;
816 struct pf_rule_uid uid;
817 struct pf_rule_gid gid;
827 u_int8_t match_tag_not;
843 u_int8_t anchor_relative;
844 u_int8_t anchor_wildcard;
848 u_int8_t set_prio[2];
854 u_int8_t md5sum[PF_MD5_DIGEST_LENGTH];
855 RB_ENTRY(pf_krule) entry_global;
857 #ifdef PF_WANT_32_TO_64_COUNTER
858 LIST_ENTRY(pf_krule) allrulelist;
863 struct pf_krule_item {
864 SLIST_ENTRY(pf_krule_item) entry;
868 SLIST_HEAD(pf_krule_slist, pf_krule_item);
870 struct pf_ksrc_node {
871 LIST_ENTRY(pf_ksrc_node) entry;
873 struct pf_addr raddr;
874 struct pf_krule_slist match_rules;
875 union pf_krule_ptr rule;
876 struct pfi_kkif *rkif;
877 counter_u64_t bytes[2];
878 counter_u64_t packets[2];
881 struct pf_threshold conn_rate;
890 struct pf_state_scrub {
891 struct timeval pfss_last; /* time received last packet */
892 u_int32_t pfss_tsecr; /* last echoed timestamp */
893 u_int32_t pfss_tsval; /* largest timestamp */
894 u_int32_t pfss_tsval0; /* original timestamp */
895 u_int16_t pfss_flags;
896 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
897 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
898 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
899 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
900 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
901 u_int8_t pfss_ttl; /* stashed TTL */
904 u_int32_t pfss_ts_mod; /* timestamp modulation */
905 u_int32_t pfss_v_tag; /* SCTP verification tag */
909 struct pf_state_host {
915 struct pf_state_peer {
916 struct pf_state_scrub *scrub; /* state is scrubbed */
917 u_int32_t seqlo; /* Max sequence number sent */
918 u_int32_t seqhi; /* Max the other end ACKd + win */
919 u_int32_t seqdiff; /* Sequence number modulator */
920 u_int16_t max_win; /* largest window (pre scaling) */
921 u_int16_t mss; /* Maximum segment size option */
922 u_int8_t state; /* active state level */
923 u_int8_t wscale; /* window scaling factor */
924 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
928 /* Keep synced with struct pf_state_key. */
929 struct pf_state_key_cmp {
930 struct pf_addr addr[2];
937 struct pf_state_key {
938 struct pf_addr addr[2];
944 LIST_ENTRY(pf_state_key) entry;
945 TAILQ_HEAD(, pf_kstate) states[2];
948 /* Keep synced with struct pf_kstate. */
949 struct pf_state_cmp {
956 struct pf_state_scrub_export {
958 uint8_t pfss_ttl; /* stashed TTL */
959 #define PF_SCRUB_FLAG_VALID 0x01
961 uint32_t pfss_ts_mod; /* timestamp modulation */
964 struct pf_state_key_export {
965 struct pf_addr addr[2];
969 struct pf_state_peer_export {
970 struct pf_state_scrub_export scrub; /* state is scrubbed */
971 uint32_t seqlo; /* Max sequence number sent */
972 uint32_t seqhi; /* Max the other end ACKd + win */
973 uint32_t seqdiff; /* Sequence number modulator */
974 uint16_t max_win; /* largest window (pre scaling) */
975 uint16_t mss; /* Maximum segment size option */
976 uint8_t state; /* active state level */
977 uint8_t wscale; /* window scaling factor */
980 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect");
982 struct pf_state_export {
984 #define PF_STATE_VERSION 20230404
986 char ifname[IFNAMSIZ];
987 char orig_ifname[IFNAMSIZ];
988 struct pf_state_key_export key[2];
989 struct pf_state_peer_export src;
990 struct pf_state_peer_export dst;
991 struct pf_addr rt_addr;
1006 uint8_t state_flags_compat;
1010 uint16_t state_flags;
1019 uint8_t set_prio[2];
1021 char rt_ifname[IFNAMSIZ];
1025 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect");
1030 * Area shared with pf_state_cmp
1033 u_int32_t creatorid;
1040 u_int16_t state_flags;
1042 u_int8_t sync_state; /* PFSYNC_S_x */
1043 u_int8_t sync_updates; /* XXX */
1046 TAILQ_ENTRY(pf_kstate) sync_list;
1047 TAILQ_ENTRY(pf_kstate) key_list[2];
1048 LIST_ENTRY(pf_kstate) entry;
1049 struct pf_state_peer src;
1050 struct pf_state_peer dst;
1051 struct pf_krule_slist match_rules;
1052 union pf_krule_ptr rule;
1053 union pf_krule_ptr anchor;
1054 union pf_krule_ptr nat_rule;
1055 struct pf_addr rt_addr;
1056 struct pf_state_key *key[2]; /* addresses stack and wire */
1057 struct pfi_kkif *kif;
1058 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */
1059 struct pfi_kkif *rt_kif;
1060 struct pf_ksrc_node *src_node;
1061 struct pf_ksrc_node *nat_src_node;
1062 u_int64_t packets[2];
1066 u_int32_t pfsync_time;
1067 struct pf_rule_actions act;
1073 * Size <= fits 11 objects per page on LP64. Try to not grow the struct beyond that.
1075 _Static_assert(sizeof(struct pf_kstate) <= 368, "pf_kstate size crosses 368 bytes");
1079 * Unified state structures for pulling states out of the kernel
1080 * used by pfsync(4) and the pf(4) ioctl.
1082 struct pfsync_state_scrub {
1083 u_int16_t pfss_flags;
1084 u_int8_t pfss_ttl; /* stashed TTL */
1085 #define PFSYNC_SCRUB_FLAG_VALID 0x01
1086 u_int8_t scrub_flag;
1087 u_int32_t pfss_ts_mod; /* timestamp modulation */
1090 struct pfsync_state_peer {
1091 struct pfsync_state_scrub scrub; /* state is scrubbed */
1092 u_int32_t seqlo; /* Max sequence number sent */
1093 u_int32_t seqhi; /* Max the other end ACKd + win */
1094 u_int32_t seqdiff; /* Sequence number modulator */
1095 u_int16_t max_win; /* largest window (pre scaling) */
1096 u_int16_t mss; /* Maximum segment size option */
1097 u_int8_t state; /* active state level */
1098 u_int8_t wscale; /* window scaling factor */
1102 struct pfsync_state_key {
1103 struct pf_addr addr[2];
1107 struct pfsync_state_1301 {
1109 char ifname[IFNAMSIZ];
1110 struct pfsync_state_key key[2];
1111 struct pfsync_state_peer src;
1112 struct pfsync_state_peer dst;
1113 struct pf_addr rt_addr;
1119 u_int32_t packets[2][2];
1120 u_int32_t bytes[2][2];
1121 u_int32_t creatorid;
1125 u_int8_t __spare[2];
1127 u_int8_t state_flags;
1129 u_int8_t sync_flags;
1133 struct pfsync_state_1400 {
1134 /* The beginning of the struct is compatible with previous versions */
1136 char ifname[IFNAMSIZ];
1137 struct pfsync_state_key key[2];
1138 struct pfsync_state_peer src;
1139 struct pfsync_state_peer dst;
1140 struct pf_addr rt_addr;
1146 u_int32_t packets[2][2];
1147 u_int32_t bytes[2][2];
1148 u_int32_t creatorid;
1152 u_int16_t state_flags;
1156 u_int8_t sync_flags;
1158 /* The rest is not */
1167 u_int8_t set_prio[2];
1169 char rt_ifname[IFNAMSIZ];
1173 union pfsync_state_union {
1174 struct pfsync_state_1301 pfs_1301;
1175 struct pfsync_state_1400 pfs_1400;
1180 typedef int pfsync_state_import_t(union pfsync_state_union *, int, int);
1181 typedef void pfsync_insert_state_t(struct pf_kstate *);
1182 typedef void pfsync_update_state_t(struct pf_kstate *);
1183 typedef void pfsync_delete_state_t(struct pf_kstate *);
1184 typedef void pfsync_clear_states_t(u_int32_t, const char *);
1185 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *);
1186 typedef void pfsync_detach_ifnet_t(struct ifnet *);
1188 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
1189 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
1190 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
1191 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
1192 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
1193 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
1194 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
1195 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
1196 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
1197 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
1198 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
1199 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
1200 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
1202 void pfsync_state_export(union pfsync_state_union *,
1203 struct pf_kstate *, int);
1204 void pf_state_export(struct pf_state_export *,
1205 struct pf_kstate *);
1210 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t,
1211 u_int8_t, struct pf_krule *, struct pf_krule *, struct pf_kruleset *,
1212 struct pf_pdesc *, int);
1213 extern pflog_packet_t *pflog_packet_ptr;
1215 #endif /* _KERNEL */
1217 #define PFSYNC_FLAG_SRCNODE 0x04
1218 #define PFSYNC_FLAG_NATSRCNODE 0x08
1220 /* for copies to/from network byte order */
1221 /* ioctl interface also uses network byte order */
1222 #define pf_state_peer_hton(s,d) do { \
1223 (d)->seqlo = htonl((s)->seqlo); \
1224 (d)->seqhi = htonl((s)->seqhi); \
1225 (d)->seqdiff = htonl((s)->seqdiff); \
1226 (d)->max_win = htons((s)->max_win); \
1227 (d)->mss = htons((s)->mss); \
1228 (d)->state = (s)->state; \
1229 (d)->wscale = (s)->wscale; \
1231 (d)->scrub.pfss_flags = \
1232 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
1233 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
1234 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
1235 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
1239 #define pf_state_peer_ntoh(s,d) do { \
1240 (d)->seqlo = ntohl((s)->seqlo); \
1241 (d)->seqhi = ntohl((s)->seqhi); \
1242 (d)->seqdiff = ntohl((s)->seqdiff); \
1243 (d)->max_win = ntohs((s)->max_win); \
1244 (d)->mss = ntohs((s)->mss); \
1245 (d)->state = (s)->state; \
1246 (d)->wscale = (s)->wscale; \
1247 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1248 (d)->scrub != NULL) { \
1249 (d)->scrub->pfss_flags = \
1250 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1251 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1252 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
1256 #define pf_state_counter_hton(s,d) do { \
1257 d[0] = htonl((s>>32)&0xffffffff); \
1258 d[1] = htonl(s&0xffffffff); \
1261 #define pf_state_counter_from_pfsync(s) \
1262 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1264 #define pf_state_counter_ntoh(s,d) do { \
1270 TAILQ_HEAD(pf_krulequeue, pf_krule);
1274 struct pf_kruleset {
1276 struct pf_krulequeue queues[2];
1278 struct pf_krulequeue *ptr;
1279 struct pf_krule **ptr_array;
1283 struct pf_krule_global *tree;
1285 } rules[PF_RULESET_MAX];
1286 struct pf_kanchor *anchor;
1292 RB_HEAD(pf_kanchor_global, pf_kanchor);
1293 RB_HEAD(pf_kanchor_node, pf_kanchor);
1295 RB_ENTRY(pf_kanchor) entry_global;
1296 RB_ENTRY(pf_kanchor) entry_node;
1297 struct pf_kanchor *parent;
1298 struct pf_kanchor_node children;
1299 char name[PF_ANCHOR_NAME_SIZE];
1300 char path[MAXPATHLEN];
1301 struct pf_kruleset ruleset;
1302 int refcnt; /* anchor rules */
1304 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare);
1305 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare);
1307 #define PF_RESERVED_ANCHOR "_pf"
1309 #define PFR_TFLAG_PERSIST 0x00000001
1310 #define PFR_TFLAG_CONST 0x00000002
1311 #define PFR_TFLAG_ACTIVE 0x00000004
1312 #define PFR_TFLAG_INACTIVE 0x00000008
1313 #define PFR_TFLAG_REFERENCED 0x00000010
1314 #define PFR_TFLAG_REFDANCHOR 0x00000020
1315 #define PFR_TFLAG_COUNTERS 0x00000040
1316 /* Adjust masks below when adding flags. */
1317 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
1320 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
1321 PFR_TFLAG_INACTIVE | \
1322 PFR_TFLAG_REFERENCED | \
1323 PFR_TFLAG_REFDANCHOR)
1324 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
1326 PFR_TFLAG_ACTIVE | \
1327 PFR_TFLAG_INACTIVE | \
1328 PFR_TFLAG_REFERENCED | \
1329 PFR_TFLAG_REFDANCHOR | \
1332 struct pf_kanchor_stackframe;
1333 struct pf_keth_anchor_stackframe;
1336 char pfrt_anchor[MAXPATHLEN];
1337 char pfrt_name[PF_TABLE_NAME_SIZE];
1338 u_int32_t pfrt_flags;
1339 u_int8_t pfrt_fback;
1342 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1343 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1344 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1348 struct in_addr _pfra_ip4addr;
1349 struct in6_addr _pfra_ip6addr;
1354 u_int8_t pfra_fback;
1356 #define pfra_ip4addr pfra_u._pfra_ip4addr
1357 #define pfra_ip6addr pfra_u._pfra_ip6addr
1359 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1360 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1361 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
1362 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
1363 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1366 struct pfr_addr pfras_a;
1367 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1368 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1372 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1375 struct pfr_table pfrts_t;
1376 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1377 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1378 u_int64_t pfrts_match;
1379 u_int64_t pfrts_nomatch;
1382 int pfrts_refcnt[PFR_REFCNT_MAX];
1387 struct pfr_kstate_counter {
1388 counter_u64_t pkc_pcpu;
1393 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags)
1397 pfrc->pkc_pcpu = counter_u64_alloc(flags);
1398 if (pfrc->pkc_pcpu == NULL)
1404 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc)
1407 counter_u64_free(pfrc->pkc_pcpu);
1410 static inline u_int64_t
1411 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc)
1415 c = counter_u64_fetch(pfrc->pkc_pcpu);
1416 c -= pfrc->pkc_zero;
1421 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc)
1425 c = counter_u64_fetch(pfrc->pkc_pcpu);
1430 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n)
1433 counter_u64_add(pfrc->pkc_pcpu, n);
1436 struct pfr_ktstats {
1437 struct pfr_table pfrts_t;
1438 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1439 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1440 struct pfr_kstate_counter pfrkts_match;
1441 struct pfr_kstate_counter pfrkts_nomatch;
1444 int pfrkts_refcnt[PFR_REFCNT_MAX];
1447 #endif /* _KERNEL */
1449 #define pfrts_name pfrts_t.pfrt_name
1450 #define pfrts_flags pfrts_t.pfrt_flags
1452 #ifndef _SOCKADDR_UNION_DEFINED
1453 #define _SOCKADDR_UNION_DEFINED
1454 union sockaddr_union {
1456 struct sockaddr_in sin;
1457 struct sockaddr_in6 sin6;
1459 #endif /* _SOCKADDR_UNION_DEFINED */
1461 struct pfr_kcounters {
1462 counter_u64_t pfrkc_counters;
1465 #define pfr_kentry_counter(kc, dir, op, t) \
1466 ((kc)->pfrkc_counters + \
1467 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
1470 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1472 struct radix_node pfrke_node[2];
1473 union sockaddr_union pfrke_sa;
1474 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1475 struct pfr_kcounters pfrke_counters;
1479 u_int8_t pfrke_mark;
1482 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1483 RB_HEAD(pfr_ktablehead, pfr_ktable);
1485 struct pfr_ktstats pfrkt_kts;
1486 RB_ENTRY(pfr_ktable) pfrkt_tree;
1487 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1488 struct radix_node_head *pfrkt_ip4;
1489 struct radix_node_head *pfrkt_ip6;
1490 struct pfr_ktable *pfrkt_shadow;
1491 struct pfr_ktable *pfrkt_root;
1492 struct pf_kruleset *pfrkt_rs;
1496 #define pfrkt_t pfrkt_kts.pfrts_t
1497 #define pfrkt_name pfrkt_t.pfrt_name
1498 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1499 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1500 #define pfrkt_flags pfrkt_t.pfrt_flags
1501 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
1502 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
1503 #define pfrkt_packets pfrkt_kts.pfrkts_packets
1504 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
1505 #define pfrkt_match pfrkt_kts.pfrkts_match
1506 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
1507 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
1512 char pfik_name[IFNAMSIZ];
1514 RB_ENTRY(pfi_kkif) _pfik_tree;
1515 LIST_ENTRY(pfi_kkif) _pfik_list;
1517 #define pfik_tree _pfik_glue._pfik_tree
1518 #define pfik_list _pfik_glue._pfik_list
1519 struct pf_counter_u64 pfik_packets[2][2][2];
1520 struct pf_counter_u64 pfik_bytes[2][2][2];
1521 u_int32_t pfik_tzero;
1523 struct ifnet *pfik_ifp;
1524 struct ifg_group *pfik_group;
1525 u_int pfik_rulerefs;
1526 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1527 #ifdef PF_WANT_32_TO_64_COUNTER
1528 LIST_ENTRY(pfi_kkif) pfik_allkiflist;
1533 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1534 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1537 struct pf_sctp_multihome_job;
1538 TAILQ_HEAD(pf_sctp_multihome_jobs, pf_sctp_multihome_job);
1546 u_int64_t tot_len; /* Make Mickey money */
1550 struct sctphdr sctp;
1553 struct icmp6_hdr icmp6;
1558 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */
1559 struct pf_addr *src; /* src address */
1560 struct pf_addr *dst; /* dst address */
1563 struct pf_mtag *pf_mtag;
1564 struct pf_rule_actions act;
1566 u_int32_t p_len; /* total length of payload */
1569 u_int16_t *proto_sum;
1570 u_int16_t flags; /* Let SCRUB trigger behavior in
1571 * state code. Easier than tags */
1572 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1573 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1577 u_int8_t dir; /* direction */
1578 u_int8_t sidx; /* key index for source */
1579 u_int8_t didx; /* key index for destination */
1580 #define PFDESC_SCTP_INIT 0x0001
1581 #define PFDESC_SCTP_INIT_ACK 0x0002
1582 #define PFDESC_SCTP_COOKIE 0x0004
1583 #define PFDESC_SCTP_ABORT 0x0008
1584 #define PFDESC_SCTP_SHUTDOWN 0x0010
1585 #define PFDESC_SCTP_SHUTDOWN_COMPLETE 0x0020
1586 #define PFDESC_SCTP_DATA 0x0040
1587 #define PFDESC_SCTP_ASCONF 0x0080
1588 #define PFDESC_SCTP_OTHER 0x0100
1589 #define PFDESC_SCTP_ADD_IP 0x0200
1590 u_int16_t sctp_flags;
1591 u_int32_t sctp_initiate_tag;
1593 struct pf_sctp_multihome_jobs sctp_multihome_jobs;
1596 struct pf_sctp_multihome_job {
1597 TAILQ_ENTRY(pf_sctp_multihome_job) next;
1607 /* flags for RDR options */
1608 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1609 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1611 /* UDP state enumeration */
1612 #define PFUDPS_NO_TRAFFIC 0
1613 #define PFUDPS_SINGLE 1
1614 #define PFUDPS_MULTIPLE 2
1616 #define PFUDPS_NSTATES 3 /* number of state levels */
1618 #define PFUDPS_NAMES { \
1625 /* Other protocol state enumeration */
1626 #define PFOTHERS_NO_TRAFFIC 0
1627 #define PFOTHERS_SINGLE 1
1628 #define PFOTHERS_MULTIPLE 2
1630 #define PFOTHERS_NSTATES 3 /* number of state levels */
1632 #define PFOTHERS_NAMES { \
1639 #define ACTION_SET(a, x) \
1645 #define REASON_SET(a, x) \
1649 if (x < PFRES_MAX) \
1650 counter_u64_add(V_pf_status.counters[x], 1); \
1653 enum pf_syncookies_mode {
1654 PF_SYNCOOKIES_NEVER = 0,
1655 PF_SYNCOOKIES_ALWAYS = 1,
1656 PF_SYNCOOKIES_ADAPTIVE = 2,
1657 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE
1660 #define PF_SYNCOOKIES_HIWATPCT 25
1661 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2)
1665 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1666 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */
1667 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */
1668 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1675 char ifname[IFNAMSIZ];
1676 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1678 enum pf_syncookies_mode syncookies_mode;
1679 bool syncookies_active;
1680 uint64_t syncookies_inflight[2];
1681 uint32_t states_halfopen;
1688 struct in_addr ipv4;
1689 struct in6_addr ipv6;
1694 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1695 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1698 * Limit the length of the fragment queue traversal. Remember
1699 * search entry points based on the fragment offset.
1701 #define PF_FRAG_ENTRY_POINTS 16
1704 * The number of entries in the fragment queue must be limited
1705 * to avoid DoS by linear searching. Instead of a global limit,
1706 * use a limit per entry point. For large packets these sum up.
1708 #define PF_FRAG_ENTRY_LIMIT 64
1711 * ioctl parameter structures
1714 struct pfioc_pooladdr {
1722 char anchor[MAXPATHLEN];
1723 struct pf_pooladdr addr;
1729 u_int32_t pool_ticket;
1731 char anchor[MAXPATHLEN];
1732 char anchor_call[MAXPATHLEN];
1733 struct pf_rule rule;
1736 struct pfioc_natlook {
1737 struct pf_addr saddr;
1738 struct pf_addr daddr;
1739 struct pf_addr rsaddr;
1740 struct pf_addr rdaddr;
1750 struct pfioc_state {
1751 struct pfsync_state_1301 state;
1754 struct pfioc_src_node_kill {
1755 sa_family_t psnk_af;
1756 struct pf_rule_addr psnk_src;
1757 struct pf_rule_addr psnk_dst;
1762 struct pf_kstate_kill {
1763 struct pf_state_cmp psk_pfcmp;
1766 struct pf_rule_addr psk_src;
1767 struct pf_rule_addr psk_dst;
1768 struct pf_rule_addr psk_rt_addr;
1769 char psk_ifname[IFNAMSIZ];
1770 char psk_label[PF_RULE_LABEL_SIZE];
1772 bool psk_kill_match;
1776 struct pfioc_state_kill {
1777 struct pf_state_cmp psk_pfcmp;
1780 struct pf_rule_addr psk_src;
1781 struct pf_rule_addr psk_dst;
1782 char psk_ifname[IFNAMSIZ];
1783 char psk_label[PF_RULE_LABEL_SIZE];
1787 struct pfioc_states {
1791 struct pfsync_state_1301 *ps_states;
1795 struct pfioc_states_v2 {
1797 uint64_t ps_req_version;
1800 struct pf_state_export *ps_states;
1804 struct pfioc_src_nodes {
1808 struct pf_src_node *psn_src_nodes;
1813 char ifname[IFNAMSIZ];
1821 struct pfioc_limit {
1826 struct pfioc_altq_v0 {
1830 struct pf_altq_v0 altq;
1833 struct pfioc_altq_v1 {
1838 * Placed here so code that only uses the above parameters can be
1839 * written entirely in terms of the v0 or v1 type.
1842 struct pf_altq_v1 altq;
1846 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1847 * the latest version of struct pf_altq_vX as it has that struct as a
1850 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1852 struct pfioc_qstats_v0 {
1860 struct pfioc_qstats_v1 {
1867 * Placed here so code that only uses the above parameters can be
1868 * written entirely in terms of the v0 or v1 type.
1870 u_int32_t version; /* Requested version of stats struct */
1873 /* Latest version of struct pfioc_qstats_vX */
1874 #define PFIOC_QSTATS_VERSION 1
1876 struct pfioc_ruleset {
1878 char path[MAXPATHLEN];
1879 char name[PF_ANCHOR_NAME_SIZE];
1882 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1883 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1884 #define PF_RULESET_ETH (PF_RULESET_MAX+2)
1885 struct pfioc_trans {
1886 int size; /* number of elements */
1887 int esize; /* size of each element in bytes */
1888 struct pfioc_trans_e {
1890 char anchor[MAXPATHLEN];
1895 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1896 #define PFR_FLAG_DUMMY 0x00000002
1897 #define PFR_FLAG_FEEDBACK 0x00000004
1898 #define PFR_FLAG_CLSTATS 0x00000008
1899 #define PFR_FLAG_ADDRSTOO 0x00000010
1900 #define PFR_FLAG_REPLACE 0x00000020
1901 #define PFR_FLAG_ALLRSETS 0x00000040
1902 #define PFR_FLAG_ALLMASK 0x0000007F
1904 #define PFR_FLAG_USERIOCTL 0x10000000
1907 struct pfioc_table {
1908 struct pfr_table pfrio_table;
1917 u_int32_t pfrio_ticket;
1919 #define pfrio_exists pfrio_nadd
1920 #define pfrio_nzero pfrio_nadd
1921 #define pfrio_nmatch pfrio_nadd
1922 #define pfrio_naddr pfrio_size2
1923 #define pfrio_setflag pfrio_size2
1924 #define pfrio_clrflag pfrio_nadd
1926 struct pfioc_iface {
1927 char pfiio_name[IFNAMSIZ];
1939 #define DIOCSTART _IO ('D', 1)
1940 #define DIOCSTOP _IO ('D', 2)
1941 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1942 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv)
1943 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1944 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv)
1945 /* XXX cut 8 - 17 */
1946 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv)
1947 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1948 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv)
1949 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1950 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv)
1951 #define DIOCCLRSTATUS _IO ('D', 22)
1952 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1953 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1954 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1955 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1956 /* XXX cut 26 - 28 */
1957 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1958 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1959 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1960 #define DIOCCLRRULECTRS _IO ('D', 38)
1961 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1962 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1963 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv)
1964 #define DIOCSTARTALTQ _IO ('D', 42)
1965 #define DIOCSTOPALTQ _IO ('D', 43)
1966 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1967 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1968 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1969 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1970 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1971 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1972 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1973 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1974 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1975 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1976 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1977 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1978 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1979 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1980 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1981 /* XXX cut 55 - 57 */
1982 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1983 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1984 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1985 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1986 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1987 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1988 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1989 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1990 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1991 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1992 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1993 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1994 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1995 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1996 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1997 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1998 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1999 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
2000 #define DIOCOSFPFLUSH _IO('D', 78)
2001 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
2002 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
2003 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
2004 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
2005 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
2006 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
2007 #define DIOCCLRSRCNODES _IO('D', 85)
2008 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
2009 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
2010 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
2011 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
2012 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
2013 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
2014 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
2015 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2)
2016 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv)
2017 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv)
2018 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv)
2019 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv)
2020 #define DIOCADDETHRULE _IOWR('D', 97, struct pfioc_nv)
2021 #define DIOCGETETHRULE _IOWR('D', 98, struct pfioc_nv)
2022 #define DIOCGETETHRULES _IOWR('D', 99, struct pfioc_nv)
2023 #define DIOCGETETHRULESETS _IOWR('D', 100, struct pfioc_nv)
2024 #define DIOCGETETHRULESET _IOWR('D', 101, struct pfioc_nv)
2025 #define DIOCSETREASS _IOWR('D', 102, u_int32_t)
2027 struct pf_ifspeed_v0 {
2028 char ifname[IFNAMSIZ];
2032 struct pf_ifspeed_v1 {
2033 char ifname[IFNAMSIZ];
2034 u_int32_t baudrate32;
2035 /* layout identical to struct pf_ifspeed_v0 up to this point */
2039 /* Latest version of struct pf_ifspeed_vX */
2040 #define PF_IFSPEED_VERSION 1
2043 * Compatibility and convenience macros
2046 #ifdef PFIOC_USE_LATEST
2048 * Maintaining in-tree consumers of the ioctl interface is easier when that
2049 * code can be written in terms old names that refer to the latest interface
2050 * version as that reduces the required changes in the consumers to those
2051 * that are functionally necessary to accommodate a new interface version.
2053 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
2054 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
2055 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
2057 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
2058 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
2059 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
2060 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
2061 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
2062 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
2065 * When building out-of-tree code that is written for the old interface,
2066 * such as may exist in ports for example, resolve the old struct tags and
2067 * ioctl command names to the v0 versions.
2069 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
2070 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
2071 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
2073 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
2074 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
2075 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
2076 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
2077 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
2078 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
2079 #endif /* PFIOC_USE_LATEST */
2080 #endif /* _KERNEL */
2083 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node);
2085 struct pf_ksrc_node_list nodes;
2090 LIST_HEAD(, pf_state_key) keys;
2095 LIST_HEAD(, pf_kstate) states;
2099 extern u_long pf_ioctl_maxcount;
2100 extern u_long pf_hashmask;
2101 extern u_long pf_srchashmask;
2102 #define PF_HASHSIZ (131072)
2103 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
2104 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
2105 VNET_DECLARE(struct pf_idhash *, pf_idhash);
2106 #define V_pf_keyhash VNET(pf_keyhash)
2107 #define V_pf_idhash VNET(pf_idhash)
2108 VNET_DECLARE(struct pf_srchash *, pf_srchash);
2109 #define V_pf_srchash VNET(pf_srchash)
2111 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
2113 VNET_DECLARE(void *, pf_swi_cookie);
2114 #define V_pf_swi_cookie VNET(pf_swi_cookie)
2115 VNET_DECLARE(struct intr_event *, pf_swi_ie);
2116 #define V_pf_swi_ie VNET(pf_swi_ie)
2118 VNET_DECLARE(struct unrhdr64, pf_stateid);
2119 #define V_pf_stateid VNET(pf_stateid)
2121 TAILQ_HEAD(pf_altqqueue, pf_altq);
2122 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
2123 #define V_pf_altqs VNET(pf_altqs)
2124 VNET_DECLARE(struct pf_kpalist, pf_pabuf);
2125 #define V_pf_pabuf VNET(pf_pabuf)
2127 VNET_DECLARE(u_int32_t, ticket_altqs_active);
2128 #define V_ticket_altqs_active VNET(ticket_altqs_active)
2129 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
2130 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
2131 VNET_DECLARE(int, altqs_inactive_open);
2132 #define V_altqs_inactive_open VNET(altqs_inactive_open)
2133 VNET_DECLARE(u_int32_t, ticket_pabuf);
2134 #define V_ticket_pabuf VNET(ticket_pabuf)
2135 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
2136 #define V_pf_altqs_active VNET(pf_altqs_active)
2137 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
2138 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
2139 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
2140 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
2141 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
2142 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
2144 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules);
2145 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
2147 #ifdef PF_WANT_32_TO_64_COUNTER
2148 LIST_HEAD(allkiflist_head, pfi_kkif);
2149 VNET_DECLARE(struct allkiflist_head, pf_allkiflist);
2150 #define V_pf_allkiflist VNET(pf_allkiflist)
2151 VNET_DECLARE(size_t, pf_allkifcount);
2152 #define V_pf_allkifcount VNET(pf_allkifcount)
2153 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker);
2154 #define V_pf_kifmarker VNET(pf_kifmarker)
2156 LIST_HEAD(allrulelist_head, pf_krule);
2157 VNET_DECLARE(struct allrulelist_head, pf_allrulelist);
2158 #define V_pf_allrulelist VNET(pf_allrulelist)
2159 VNET_DECLARE(size_t, pf_allrulecount);
2160 #define V_pf_allrulecount VNET(pf_allrulecount)
2161 VNET_DECLARE(struct pf_krule *, pf_rulemarker);
2162 #define V_pf_rulemarker VNET(pf_rulemarker)
2165 void pf_initialize(void);
2166 void pf_mtag_initialize(void);
2167 void pf_mtag_cleanup(void);
2168 void pf_cleanup(void);
2170 struct pf_mtag *pf_get_mtag(struct mbuf *);
2172 extern void pf_calc_skip_steps(struct pf_krulequeue *);
2174 extern void pf_altq_ifnet_event(struct ifnet *, int);
2176 VNET_DECLARE(uma_zone_t, pf_state_z);
2177 #define V_pf_state_z VNET(pf_state_z)
2178 VNET_DECLARE(uma_zone_t, pf_state_key_z);
2179 #define V_pf_state_key_z VNET(pf_state_key_z)
2180 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
2181 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
2183 extern void pf_purge_thread(void *);
2184 extern void pf_unload_vnet_purge(void);
2185 extern void pf_intr(void *);
2186 extern void pf_purge_expired_src_nodes(void);
2188 extern int pf_unlink_state(struct pf_kstate *);
2189 extern int pf_state_insert(struct pfi_kkif *,
2191 struct pf_state_key *,
2192 struct pf_state_key *,
2193 struct pf_kstate *);
2194 extern struct pf_kstate *pf_alloc_state(int);
2195 extern void pf_free_state(struct pf_kstate *);
2197 static __inline void
2198 pf_ref_state(struct pf_kstate *s)
2201 refcount_acquire(&s->refs);
2205 pf_release_state(struct pf_kstate *s)
2208 if (refcount_release(&s->refs)) {
2216 pf_release_staten(struct pf_kstate *s, u_int n)
2219 if (refcount_releasen(&s->refs, n)) {
2226 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t);
2227 extern struct pf_kstate *pf_find_state_all(struct pf_state_key_cmp *,
2229 extern bool pf_find_state_all_exists(struct pf_state_key_cmp *,
2231 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *,
2232 struct pf_krule *, sa_family_t,
2233 struct pf_srchash **, bool);
2234 extern void pf_unlink_src_node(struct pf_ksrc_node *);
2235 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *);
2236 extern void pf_print_state(struct pf_kstate *);
2237 extern void pf_print_flags(u_int8_t);
2238 extern int pf_addr_wrap_neq(struct pf_addr_wrap *,
2239 struct pf_addr_wrap *);
2240 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
2242 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
2243 u_int16_t, u_int16_t, u_int8_t);
2245 VNET_DECLARE(struct ifnet *, sync_ifp);
2246 #define V_sync_ifp VNET(sync_ifp);
2247 VNET_DECLARE(struct pf_krule, pf_default_rule);
2248 #define V_pf_default_rule VNET(pf_default_rule)
2249 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
2251 void pf_free_rule(struct pf_krule *);
2253 int pf_test_eth(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
2255 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *,
2256 struct pf_rule_actions *);
2257 int pf_normalize_ip(struct mbuf **, struct pfi_kkif *, u_short *,
2262 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *,
2263 struct pf_rule_actions *);
2264 int pf_normalize_ip6(struct mbuf **, struct pfi_kkif *, u_short *,
2266 void pf_poolmask(struct pf_addr *, struct pf_addr*,
2267 struct pf_addr *, struct pf_addr *, sa_family_t);
2268 void pf_addr_inc(struct pf_addr *, sa_family_t);
2269 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *, bool);
2272 int pf_multihome_scan_init(struct mbuf *, int, int, struct pf_pdesc *,
2274 int pf_multihome_scan_asconf(struct mbuf *, int, int, struct pf_pdesc *,
2277 u_int32_t pf_new_isn(struct pf_kstate *);
2278 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
2280 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
2281 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
2283 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
2284 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t,
2286 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t,
2288 void pf_send_deferred_syn(struct pf_kstate *);
2289 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
2290 struct pf_addr *, sa_family_t);
2291 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
2292 struct pf_addr *, sa_family_t);
2293 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
2295 void pf_normalize_init(void);
2296 void pf_normalize_cleanup(void);
2297 int pf_normalize_tcp(struct pfi_kkif *, struct mbuf *, int, int, void *,
2299 void pf_normalize_tcp_cleanup(struct pf_kstate *);
2300 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
2301 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
2302 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
2303 u_short *, struct tcphdr *, struct pf_kstate *,
2304 struct pf_state_peer *, struct pf_state_peer *, int *);
2305 int pf_normalize_sctp_init(struct mbuf *, int, struct pf_pdesc *,
2306 struct pf_state_peer *, struct pf_state_peer *);
2307 int pf_normalize_sctp(int, struct pfi_kkif *, struct mbuf *, int,
2308 int, void *, struct pf_pdesc *);
2310 pf_state_expires(const struct pf_kstate *);
2311 void pf_purge_expired_fragments(void);
2312 void pf_purge_fragments(uint32_t);
2313 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *,
2315 int pf_socket_lookup(struct pf_pdesc *, struct mbuf *);
2316 struct pf_state_key *pf_alloc_state_key(int);
2317 void pfr_initialize(void);
2318 void pfr_cleanup(void);
2319 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
2320 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
2321 u_int64_t, int, int, int);
2322 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
2323 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
2325 pfr_attach_table(struct pf_kruleset *, char *);
2327 pfr_eth_attach_table(struct pf_keth_ruleset *, char *);
2328 void pfr_detach_table(struct pfr_ktable *);
2329 int pfr_clr_tables(struct pfr_table *, int *, int);
2330 int pfr_add_tables(struct pfr_table *, int, int *, int);
2331 int pfr_del_tables(struct pfr_table *, int, int *, int);
2332 int pfr_table_count(struct pfr_table *, int);
2333 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
2334 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
2335 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
2336 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
2337 int pfr_clr_addrs(struct pfr_table *, int *, int);
2338 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
2339 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2341 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2343 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2344 int *, int *, int *, int, u_int32_t);
2345 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
2346 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
2347 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
2349 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2351 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
2352 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
2353 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
2354 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
2355 int *, u_int32_t, int);
2357 MALLOC_DECLARE(PFI_MTYPE);
2358 VNET_DECLARE(struct pfi_kkif *, pfi_all);
2359 #define V_pfi_all VNET(pfi_all)
2361 void pfi_initialize(void);
2362 void pfi_initialize_vnet(void);
2363 void pfi_cleanup(void);
2364 void pfi_cleanup_vnet(void);
2365 void pfi_kkif_ref(struct pfi_kkif *);
2366 void pfi_kkif_unref(struct pfi_kkif *);
2367 struct pfi_kkif *pfi_kkif_find(const char *);
2368 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *);
2369 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *);
2370 void pfi_kkif_purge(void);
2371 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2373 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2374 void pfi_dynaddr_remove(struct pfi_dynaddr *);
2375 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2376 void pfi_update_status(const char *, struct pf_status *);
2377 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
2378 int pfi_set_flags(const char *, int);
2379 int pfi_clear_flags(const char *, int);
2381 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int);
2382 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
2383 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
2386 u_int16_t pf_get_mss(struct mbuf *, int, u_int16_t, sa_family_t);
2387 u_int8_t pf_get_wscale(struct mbuf *, int, u_int16_t, sa_family_t);
2388 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t,
2389 const struct pf_addr *, const struct pf_addr *,
2390 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2391 u_int8_t, u_int16_t, u_int16_t, u_int8_t, bool,
2392 u_int16_t, u_int16_t, int);
2393 void pf_send_tcp(const struct pf_krule *, sa_family_t,
2394 const struct pf_addr *, const struct pf_addr *,
2395 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2396 u_int8_t, u_int16_t, u_int16_t, u_int8_t, bool,
2397 u_int16_t, u_int16_t, int);
2399 void pf_syncookies_init(void);
2400 void pf_syncookies_cleanup(void);
2401 int pf_get_syncookies(struct pfioc_nv *);
2402 int pf_set_syncookies(struct pfioc_nv *);
2403 int pf_synflood_check(struct pf_pdesc *);
2404 void pf_syncookie_send(struct mbuf *m, int off,
2406 bool pf_syncookie_check(struct pf_pdesc *);
2407 u_int8_t pf_syncookie_validate(struct pf_pdesc *);
2408 struct mbuf * pf_syncookie_recreate_syn(uint8_t, int,
2411 VNET_DECLARE(struct pf_kstatus, pf_status);
2412 #define V_pf_status VNET(pf_status)
2418 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
2419 #define V_pf_limits VNET(pf_limits)
2421 #endif /* _KERNEL */
2424 VNET_DECLARE(struct pf_kanchor_global, pf_anchors);
2425 #define V_pf_anchors VNET(pf_anchors)
2426 VNET_DECLARE(struct pf_kanchor, pf_main_anchor);
2427 #define V_pf_main_anchor VNET(pf_main_anchor)
2428 VNET_DECLARE(struct pf_keth_anchor_global, pf_keth_anchors);
2429 #define V_pf_keth_anchors VNET(pf_keth_anchors)
2430 #define pf_main_ruleset V_pf_main_anchor.ruleset
2432 VNET_DECLARE(struct pf_keth_anchor, pf_main_keth_anchor);
2433 #define V_pf_main_keth_anchor VNET(pf_main_keth_anchor)
2434 VNET_DECLARE(struct pf_keth_ruleset*, pf_keth);
2435 #define V_pf_keth VNET(pf_keth)
2437 void pf_init_kruleset(struct pf_kruleset *);
2438 void pf_init_keth(struct pf_keth_ruleset *);
2439 int pf_kanchor_setup(struct pf_krule *,
2440 const struct pf_kruleset *, const char *);
2441 int pf_kanchor_nvcopyout(const struct pf_kruleset *,
2442 const struct pf_krule *, nvlist_t *);
2443 int pf_kanchor_copyout(const struct pf_kruleset *,
2444 const struct pf_krule *, struct pfioc_rule *);
2445 void pf_kanchor_remove(struct pf_krule *);
2446 void pf_remove_if_empty_kruleset(struct pf_kruleset *);
2447 struct pf_kruleset *pf_find_kruleset(const char *);
2448 struct pf_kruleset *pf_find_or_create_kruleset(const char *);
2449 void pf_rs_initialize(void);
2452 struct pf_krule *pf_krule_alloc(void);
2454 void pf_remove_if_empty_keth_ruleset(
2455 struct pf_keth_ruleset *);
2456 struct pf_keth_ruleset *pf_find_keth_ruleset(const char *);
2457 struct pf_keth_anchor *pf_find_keth_anchor(const char *);
2458 int pf_keth_anchor_setup(struct pf_keth_rule *,
2459 const struct pf_keth_ruleset *, const char *);
2460 int pf_keth_anchor_nvcopyout(
2461 const struct pf_keth_ruleset *,
2462 const struct pf_keth_rule *, nvlist_t *);
2463 struct pf_keth_ruleset *pf_find_or_create_keth_ruleset(const char *);
2464 void pf_keth_anchor_remove(struct pf_keth_rule *);
2466 void pf_krule_free(struct pf_krule *);
2469 /* The fingerprint functions can be linked into userland programs (tcpdump) */
2470 int pf_osfp_add(struct pf_osfp_ioctl *);
2472 struct pf_osfp_enlist *
2473 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
2474 const struct tcphdr *);
2475 #endif /* _KERNEL */
2476 void pf_osfp_flush(void);
2477 int pf_osfp_get(struct pf_osfp_ioctl *);
2478 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2481 void pf_print_host(struct pf_addr *, u_int16_t, sa_family_t);
2483 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *,
2484 struct pf_kruleset **, int, struct pf_krule **,
2485 struct pf_krule **, int *);
2486 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *,
2487 struct pf_kruleset **, int, struct pf_krule **,
2488 struct pf_krule **, int *);
2489 void pf_step_into_keth_anchor(struct pf_keth_anchor_stackframe *,
2490 int *, struct pf_keth_ruleset **,
2491 struct pf_keth_rule **, struct pf_keth_rule **,
2493 int pf_step_out_of_keth_anchor(struct pf_keth_anchor_stackframe *,
2494 int *, struct pf_keth_ruleset **,
2495 struct pf_keth_rule **, struct pf_keth_rule **,
2498 u_short pf_map_addr(u_int8_t, struct pf_krule *,
2499 struct pf_addr *, struct pf_addr *,
2500 struct pfi_kkif **nkif, struct pf_addr *,
2501 struct pf_ksrc_node **);
2502 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
2503 int, struct pfi_kkif *, struct pf_ksrc_node **,
2504 struct pf_state_key **, struct pf_state_key **,
2505 struct pf_addr *, struct pf_addr *,
2506 uint16_t, uint16_t, struct pf_kanchor_stackframe *);
2508 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
2509 struct pf_addr *, u_int16_t, u_int16_t);
2510 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
2511 void pf_rule_to_actions(struct pf_krule *,
2512 struct pf_rule_actions *);
2513 int pf_normalize_mss(struct mbuf *m, int off,
2514 struct pf_pdesc *pd);
2516 void pf_scrub_ip(struct mbuf **, struct pf_pdesc *);
2519 void pf_scrub_ip6(struct mbuf **, struct pf_pdesc *);
2522 struct pfi_kkif *pf_kkif_create(int);
2523 void pf_kkif_free(struct pfi_kkif *);
2524 void pf_kkif_zero(struct pfi_kkif *);
2525 #endif /* _KERNEL */
2527 #endif /* _NET_PFVAR_H_ */