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 $
38 #include <sys/param.h>
39 #include <sys/queue.h>
40 #include <sys/counter.h>
41 #include <sys/cpuset.h>
42 #include <sys/malloc.h>
44 #include <sys/refcount.h>
45 #include <sys/sysctl.h>
48 #include <sys/rmlock.h>
53 #include <net/radix.h>
54 #include <netinet/in.h>
56 #include <netinet/ip.h>
57 #include <netinet/tcp.h>
58 #include <netinet/udp.h>
59 #include <netinet/ip_icmp.h>
60 #include <netinet/icmp6.h>
63 #include <netpfil/pf/pf.h>
64 #include <netpfil/pf/pf_altq.h>
65 #include <netpfil/pf/pf_mtag.h>
70 #define PF_WANT_32_TO_64_COUNTER
74 * A hybrid of 32-bit and 64-bit counters which can be used on platforms where
75 * counter(9) is very expensive.
77 * As 32-bit counters are expected to overflow, a periodic job sums them up to
78 * a saved 64-bit state. Fetching the value still walks all CPUs to get the most
81 #ifdef PF_WANT_32_TO_64_COUNTER
82 struct pf_counter_u64_pcpu {
87 struct pf_counter_u64 {
88 struct pf_counter_u64_pcpu *pfcu64_pcpu;
89 u_int64_t pfcu64_value;
94 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
97 pfcu64->pfcu64_value = 0;
98 pfcu64->pfcu64_seqc = 0;
99 pfcu64->pfcu64_pcpu = uma_zalloc_pcpu(pcpu_zone_64, flags | M_ZERO);
100 if (__predict_false(pfcu64->pfcu64_pcpu == NULL))
106 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
109 uma_zfree_pcpu(pcpu_zone_64, pfcu64->pfcu64_pcpu);
113 pf_counter_u64_critical_enter(void)
120 pf_counter_u64_critical_exit(void)
127 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
129 struct pf_counter_u64_pcpu *pcpu;
132 MPASS(curthread->td_critnest > 0);
133 pcpu = zpcpu_get(pfcu64->pfcu64_pcpu);
134 val = atomic_load_int(&pcpu->current);
135 atomic_store_int(&pcpu->current, val + n);
139 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
143 pf_counter_u64_add_protected(pfcu64, n);
147 static inline u_int64_t
148 pf_counter_u64_periodic(struct pf_counter_u64 *pfcu64)
150 struct pf_counter_u64_pcpu *pcpu;
155 MPASS(curthread->td_critnest > 0);
156 seq_write_begin(&pfcu64->pfcu64_seqc);
157 sum = pfcu64->pfcu64_value;
159 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
160 val = atomic_load_int(&pcpu->current);
161 sum += (uint32_t)(val - pcpu->snapshot);
162 pcpu->snapshot = val;
164 pfcu64->pfcu64_value = sum;
165 seq_write_end(&pfcu64->pfcu64_seqc);
169 static inline u_int64_t
170 pf_counter_u64_fetch(struct pf_counter_u64 *pfcu64)
172 struct pf_counter_u64_pcpu *pcpu;
178 seqc = seq_load(&pfcu64->pfcu64_seqc);
181 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
182 sum += (uint32_t)(atomic_load_int(&pcpu->current) -pcpu->snapshot);
184 sum += pfcu64->pfcu64_value;
185 if (seq_consistent(&pfcu64->pfcu64_seqc, seqc))
192 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
194 struct pf_counter_u64_pcpu *pcpu;
197 MPASS(curthread->td_critnest > 0);
198 seq_write_begin(&pfcu64->pfcu64_seqc);
200 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
201 pcpu->snapshot = atomic_load_int(&pcpu->current);
203 pfcu64->pfcu64_value = 0;
204 seq_write_end(&pfcu64->pfcu64_seqc);
208 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
212 pf_counter_u64_zero_protected(pfcu64);
216 struct pf_counter_u64 {
217 counter_u64_t counter;
221 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
224 pfcu64->counter = counter_u64_alloc(flags);
225 if (__predict_false(pfcu64->counter == NULL))
231 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
234 counter_u64_free(pfcu64->counter);
238 pf_counter_u64_critical_enter(void)
244 pf_counter_u64_critical_exit(void)
250 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
253 counter_u64_add(pfcu64->counter, n);
257 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
260 pf_counter_u64_add_protected(pfcu64, n);
263 static inline u_int64_t
264 pf_counter_u64_fetch(struct pf_counter_u64 *pfcu64)
267 return (counter_u64_fetch(pfcu64->counter));
271 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
274 counter_u64_zero(pfcu64->counter);
278 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
281 pf_counter_u64_zero_protected(pfcu64);
285 SYSCTL_DECL(_net_pf);
286 MALLOC_DECLARE(M_PFHASH);
289 TAILQ_ENTRY(pfi_dynaddr) entry;
290 struct pf_addr pfid_addr4;
291 struct pf_addr pfid_mask4;
292 struct pf_addr pfid_addr6;
293 struct pf_addr pfid_mask6;
294 struct pfr_ktable *pfid_kt;
295 struct pfi_kkif *pfid_kif;
296 int pfid_net; /* mask or 128 */
297 int pfid_acnt4; /* address count IPv4 */
298 int pfid_acnt6; /* address count IPv6 */
299 sa_family_t pfid_af; /* rule af */
300 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
304 * Address manipulation macros
306 #define HTONL(x) (x) = htonl((__uint32_t)(x))
307 #define HTONS(x) (x) = htons((__uint16_t)(x))
308 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
309 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
313 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
314 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
315 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
318 #define PF_STATE_LOCK(s) \
320 struct pf_kstate *_s = (s); \
321 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
322 MPASS(_s->lock == &_ih->lock); \
323 mtx_lock(_s->lock); \
325 #define PF_STATE_UNLOCK(s) \
327 struct pf_kstate *_s = (s); \
328 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
329 MPASS(_s->lock == &_ih->lock); \
330 mtx_unlock(_s->lock); \
333 #define PF_STATE_LOCK(s) mtx_lock(s->lock)
334 #define PF_STATE_UNLOCK(s) mtx_unlock(s->lock)
338 #define PF_STATE_LOCK_ASSERT(s) \
340 struct pf_kstate *_s = (s); \
341 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
342 MPASS(_s->lock == &_ih->lock); \
343 PF_HASHROW_ASSERT(_ih); \
345 #else /* !INVARIANTS */
346 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
347 #endif /* INVARIANTS */
349 extern struct mtx_padalign pf_unlnkdrules_mtx;
350 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
351 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
353 extern struct rmlock pf_rules_lock;
354 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
355 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
356 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
357 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
358 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
359 #define PF_RULES_WOWNED() rm_wowned(&pf_rules_lock)
360 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
361 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
362 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
364 extern struct mtx_padalign pf_table_stats_lock;
365 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock)
366 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock)
367 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock)
368 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_rules_lock, MA_OWNED)
370 extern struct sx pf_end_lock;
373 #define PFLOG_MODVER 1
374 #define PFSYNC_MODVER 1
376 #define PFLOG_MINVER 1
377 #define PFLOG_PREFVER PFLOG_MODVER
378 #define PFLOG_MAXVER 1
379 #define PFSYNC_MINVER 1
380 #define PFSYNC_PREFVER PFSYNC_MODVER
381 #define PFSYNC_MAXVER 1
391 #define PF_INET6_ONLY
397 #define PF_INET_INET6
403 #define PF_INET_INET6
407 /* Both IPv4 and IPv6 */
410 #define PF_AEQ(a, b, c) \
411 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
412 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
413 (a)->addr32[2] == (b)->addr32[2] && \
414 (a)->addr32[1] == (b)->addr32[1] && \
415 (a)->addr32[0] == (b)->addr32[0])) \
417 #define PF_ANEQ(a, b, c) \
418 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
419 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
420 (a)->addr32[1] != (b)->addr32[1] || \
421 (a)->addr32[2] != (b)->addr32[2] || \
422 (a)->addr32[3] != (b)->addr32[3]))) \
424 #define PF_AZERO(a, c) \
425 ((c == AF_INET && !(a)->addr32[0]) || \
426 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
427 !(a)->addr32[2] && !(a)->addr32[3] )) \
429 #define PF_MATCHA(n, a, m, b, f) \
430 pf_match_addr(n, a, m, b, f)
432 #define PF_ACPY(a, b, f) \
435 #define PF_AINC(a, f) \
438 #define PF_POOLMASK(a, b, c, d, f) \
439 pf_poolmask(a, b, c, d, f)
447 #define PF_AEQ(a, b, c) \
448 ((a)->addr32[3] == (b)->addr32[3] && \
449 (a)->addr32[2] == (b)->addr32[2] && \
450 (a)->addr32[1] == (b)->addr32[1] && \
451 (a)->addr32[0] == (b)->addr32[0]) \
453 #define PF_ANEQ(a, b, c) \
454 ((a)->addr32[3] != (b)->addr32[3] || \
455 (a)->addr32[2] != (b)->addr32[2] || \
456 (a)->addr32[1] != (b)->addr32[1] || \
457 (a)->addr32[0] != (b)->addr32[0]) \
459 #define PF_AZERO(a, c) \
460 (!(a)->addr32[0] && \
465 #define PF_MATCHA(n, a, m, b, f) \
466 pf_match_addr(n, a, m, b, f)
468 #define PF_ACPY(a, b, f) \
471 #define PF_AINC(a, f) \
474 #define PF_POOLMASK(a, b, c, d, f) \
475 pf_poolmask(a, b, c, d, f)
482 #define PF_AEQ(a, b, c) \
483 ((a)->addr32[0] == (b)->addr32[0])
485 #define PF_ANEQ(a, b, c) \
486 ((a)->addr32[0] != (b)->addr32[0])
488 #define PF_AZERO(a, c) \
491 #define PF_MATCHA(n, a, m, b, f) \
492 pf_match_addr(n, a, m, b, f)
494 #define PF_ACPY(a, b, f) \
495 (a)->v4.s_addr = (b)->v4.s_addr
497 #define PF_AINC(a, f) \
499 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
502 #define PF_POOLMASK(a, b, c, d, f) \
504 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
505 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
508 #endif /* PF_INET_ONLY */
509 #endif /* PF_INET6_ONLY */
510 #endif /* PF_INET_INET6 */
513 * XXX callers not FIB-aware in our version of pf yet.
514 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
516 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
518 (((aw)->type == PF_ADDR_NOROUTE && \
519 pf_routable((x), (af), NULL, (rtid))) || \
520 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
521 pf_routable((x), (af), (ifp), (rtid))) || \
522 ((aw)->type == PF_ADDR_TABLE && \
523 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
524 ((aw)->type == PF_ADDR_DYNIFTL && \
525 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
526 ((aw)->type == PF_ADDR_RANGE && \
527 !pf_match_addr_range(&(aw)->v.a.addr, \
528 &(aw)->v.a.mask, (x), (af))) || \
529 ((aw)->type == PF_ADDR_ADDRMASK && \
530 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
531 !PF_MATCHA(0, &(aw)->v.a.addr, \
532 &(aw)->v.a.mask, (x), (af))))) != \
536 #define PF_ALGNMNT(off) (((off) % 2) == 0)
540 struct pf_kpooladdr {
541 struct pf_addr_wrap addr;
542 TAILQ_ENTRY(pf_kpooladdr) entries;
543 char ifname[IFNAMSIZ];
544 struct pfi_kkif *kif;
547 TAILQ_HEAD(pf_kpalist, pf_kpooladdr);
550 struct pf_kpalist list;
551 struct pf_kpooladdr *cur;
552 struct pf_poolhashkey key;
553 struct pf_addr counter;
554 struct pf_mape_portset mape;
556 u_int16_t proxy_port[2];
560 struct pf_rule_actions {
566 struct pf_krule *ptr;
571 struct pf_rule_addr src;
572 struct pf_rule_addr dst;
573 union pf_krule_ptr skip[PF_SKIP_COUNT];
574 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
575 char ifname[IFNAMSIZ];
576 char qname[PF_QNAME_SIZE];
577 char pqname[PF_QNAME_SIZE];
578 char tagname[PF_TAG_NAME_SIZE];
579 char match_tagname[PF_TAG_NAME_SIZE];
581 char overload_tblname[PF_TABLE_NAME_SIZE];
583 TAILQ_ENTRY(pf_krule) entries;
584 struct pf_kpool rpool;
586 struct pf_counter_u64 evaluations;
587 struct pf_counter_u64 packets[2];
588 struct pf_counter_u64 bytes[2];
590 struct pfi_kkif *kif;
591 struct pf_kanchor *anchor;
592 struct pfr_ktable *overload_tbl;
594 pf_osfp_t os_fingerprint;
597 u_int32_t timeout[PFTM_MAX];
598 u_int32_t max_states;
599 u_int32_t max_src_nodes;
600 u_int32_t max_src_states;
601 u_int32_t max_src_conn;
613 counter_u64_t states_cur;
614 counter_u64_t states_tot;
615 counter_u64_t src_nodes;
617 u_int16_t return_icmp;
618 u_int16_t return_icmp6;
622 u_int16_t scrub_flags;
624 struct pf_rule_uid uid;
625 struct pf_rule_gid gid;
635 u_int8_t match_tag_not;
651 u_int8_t anchor_relative;
652 u_int8_t anchor_wildcard;
656 u_int8_t set_prio[2];
663 #ifdef PF_WANT_32_TO_64_COUNTER
664 LIST_ENTRY(pf_krule) allrulelist;
669 struct pf_ksrc_node {
670 LIST_ENTRY(pf_ksrc_node) entry;
672 struct pf_addr raddr;
673 union pf_krule_ptr rule;
674 struct pfi_kkif *kif;
675 counter_u64_t bytes[2];
676 counter_u64_t packets[2];
679 struct pf_threshold conn_rate;
687 struct pf_state_scrub {
688 struct timeval pfss_last; /* time received last packet */
689 u_int32_t pfss_tsecr; /* last echoed timestamp */
690 u_int32_t pfss_tsval; /* largest timestamp */
691 u_int32_t pfss_tsval0; /* original timestamp */
692 u_int16_t pfss_flags;
693 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
694 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
695 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
696 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
697 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
698 u_int8_t pfss_ttl; /* stashed TTL */
700 u_int32_t pfss_ts_mod; /* timestamp modulation */
703 struct pf_state_host {
709 struct pf_state_peer {
710 struct pf_state_scrub *scrub; /* state is scrubbed */
711 u_int32_t seqlo; /* Max sequence number sent */
712 u_int32_t seqhi; /* Max the other end ACKd + win */
713 u_int32_t seqdiff; /* Sequence number modulator */
714 u_int16_t max_win; /* largest window (pre scaling) */
715 u_int16_t mss; /* Maximum segment size option */
716 u_int8_t state; /* active state level */
717 u_int8_t wscale; /* window scaling factor */
718 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
722 /* Keep synced with struct pf_state_key. */
723 struct pf_state_key_cmp {
724 struct pf_addr addr[2];
731 struct pf_state_key {
732 struct pf_addr addr[2];
738 LIST_ENTRY(pf_state_key) entry;
739 TAILQ_HEAD(, pf_kstate) states[2];
742 /* Keep synced with struct pf_kstate. */
743 struct pf_state_cmp {
750 #define PFSTATE_ALLOWOPTS 0x01
751 #define PFSTATE_SLOPPY 0x02
752 /* was PFSTATE_PFLOW 0x04 */
753 #define PFSTATE_NOSYNC 0x08
754 #define PFSTATE_ACK 0x10
755 #define PFSTATE_SETPRIO 0x0200
756 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
758 struct pf_state_scrub_export {
760 uint8_t pfss_ttl; /* stashed TTL */
761 #define PF_SCRUB_FLAG_VALID 0x01
763 uint32_t pfss_ts_mod; /* timestamp modulation */
766 struct pf_state_key_export {
767 struct pf_addr addr[2];
771 struct pf_state_peer_export {
772 struct pf_state_scrub_export scrub; /* state is scrubbed */
773 uint32_t seqlo; /* Max sequence number sent */
774 uint32_t seqhi; /* Max the other end ACKd + win */
775 uint32_t seqdiff; /* Sequence number modulator */
776 uint16_t max_win; /* largest window (pre scaling) */
777 uint16_t mss; /* Maximum segment size option */
778 uint8_t state; /* active state level */
779 uint8_t wscale; /* window scaling factor */
782 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect");
784 struct pf_state_export {
786 #define PF_STATE_VERSION 20210706
788 char ifname[IFNAMSIZ];
789 char orig_ifname[IFNAMSIZ];
790 struct pf_state_key_export key[2];
791 struct pf_state_peer_export src;
792 struct pf_state_peer_export dst;
793 struct pf_addr rt_addr;
815 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect");
820 * Area shared with pf_state_cmp
830 u_int8_t state_flags;
832 u_int8_t sync_state; /* PFSYNC_S_x */
833 u_int8_t sync_updates; /* XXX */
836 TAILQ_ENTRY(pf_kstate) sync_list;
837 TAILQ_ENTRY(pf_kstate) key_list[2];
838 LIST_ENTRY(pf_kstate) entry;
839 struct pf_state_peer src;
840 struct pf_state_peer dst;
841 union pf_krule_ptr rule;
842 union pf_krule_ptr anchor;
843 union pf_krule_ptr nat_rule;
844 struct pf_addr rt_addr;
845 struct pf_state_key *key[2]; /* addresses stack and wire */
846 struct pfi_kkif *kif;
847 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */
848 struct pfi_kkif *rt_kif;
849 struct pf_ksrc_node *src_node;
850 struct pf_ksrc_node *nat_src_node;
851 u_int64_t packets[2];
855 u_int32_t pfsync_time;
863 * Size <= fits 13 objects per page on LP64. Try to not grow the struct beyond that.
865 _Static_assert(sizeof(struct pf_kstate) <= 312, "pf_kstate size crosses 312 bytes");
869 * Unified state structures for pulling states out of the kernel
870 * used by pfsync(4) and the pf(4) ioctl.
872 struct pfsync_state_scrub {
873 u_int16_t pfss_flags;
874 u_int8_t pfss_ttl; /* stashed TTL */
875 #define PFSYNC_SCRUB_FLAG_VALID 0x01
877 u_int32_t pfss_ts_mod; /* timestamp modulation */
880 struct pfsync_state_peer {
881 struct pfsync_state_scrub scrub; /* state is scrubbed */
882 u_int32_t seqlo; /* Max sequence number sent */
883 u_int32_t seqhi; /* Max the other end ACKd + win */
884 u_int32_t seqdiff; /* Sequence number modulator */
885 u_int16_t max_win; /* largest window (pre scaling) */
886 u_int16_t mss; /* Maximum segment size option */
887 u_int8_t state; /* active state level */
888 u_int8_t wscale; /* window scaling factor */
892 struct pfsync_state_key {
893 struct pf_addr addr[2];
897 struct pfsync_state {
899 char ifname[IFNAMSIZ];
900 struct pfsync_state_key key[2];
901 struct pfsync_state_peer src;
902 struct pfsync_state_peer dst;
903 struct pf_addr rt_addr;
909 u_int32_t packets[2][2];
910 u_int32_t bytes[2][2];
917 u_int8_t state_flags;
925 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
926 typedef void pfsync_insert_state_t(struct pf_kstate *);
927 typedef void pfsync_update_state_t(struct pf_kstate *);
928 typedef void pfsync_delete_state_t(struct pf_kstate *);
929 typedef void pfsync_clear_states_t(u_int32_t, const char *);
930 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *);
931 typedef void pfsync_detach_ifnet_t(struct ifnet *);
933 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
934 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
935 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
936 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
937 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
938 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
939 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
940 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
941 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
942 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
943 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
944 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
945 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
947 void pfsync_state_export(struct pfsync_state *,
949 void pf_state_export(struct pf_state_export *,
955 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t,
956 u_int8_t, u_int8_t, struct pf_krule *, struct pf_krule *,
957 struct pf_kruleset *, struct pf_pdesc *, int);
958 extern pflog_packet_t *pflog_packet_ptr;
962 #define PFSYNC_FLAG_SRCNODE 0x04
963 #define PFSYNC_FLAG_NATSRCNODE 0x08
965 /* for copies to/from network byte order */
966 /* ioctl interface also uses network byte order */
967 #define pf_state_peer_hton(s,d) do { \
968 (d)->seqlo = htonl((s)->seqlo); \
969 (d)->seqhi = htonl((s)->seqhi); \
970 (d)->seqdiff = htonl((s)->seqdiff); \
971 (d)->max_win = htons((s)->max_win); \
972 (d)->mss = htons((s)->mss); \
973 (d)->state = (s)->state; \
974 (d)->wscale = (s)->wscale; \
976 (d)->scrub.pfss_flags = \
977 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
978 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
979 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
980 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
984 #define pf_state_peer_ntoh(s,d) do { \
985 (d)->seqlo = ntohl((s)->seqlo); \
986 (d)->seqhi = ntohl((s)->seqhi); \
987 (d)->seqdiff = ntohl((s)->seqdiff); \
988 (d)->max_win = ntohs((s)->max_win); \
989 (d)->mss = ntohs((s)->mss); \
990 (d)->state = (s)->state; \
991 (d)->wscale = (s)->wscale; \
992 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
993 (d)->scrub != NULL) { \
994 (d)->scrub->pfss_flags = \
995 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
996 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
997 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
1001 #define pf_state_counter_hton(s,d) do { \
1002 d[0] = htonl((s>>32)&0xffffffff); \
1003 d[1] = htonl(s&0xffffffff); \
1006 #define pf_state_counter_from_pfsync(s) \
1007 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1009 #define pf_state_counter_ntoh(s,d) do { \
1015 TAILQ_HEAD(pf_krulequeue, pf_krule);
1019 struct pf_kruleset {
1021 struct pf_krulequeue queues[2];
1023 struct pf_krulequeue *ptr;
1024 struct pf_krule **ptr_array;
1029 } rules[PF_RULESET_MAX];
1030 struct pf_kanchor *anchor;
1036 RB_HEAD(pf_kanchor_global, pf_kanchor);
1037 RB_HEAD(pf_kanchor_node, pf_kanchor);
1039 RB_ENTRY(pf_kanchor) entry_global;
1040 RB_ENTRY(pf_kanchor) entry_node;
1041 struct pf_kanchor *parent;
1042 struct pf_kanchor_node children;
1043 char name[PF_ANCHOR_NAME_SIZE];
1044 char path[MAXPATHLEN];
1045 struct pf_kruleset ruleset;
1046 int refcnt; /* anchor rules */
1047 int match; /* XXX: used for pfctl black magic */
1049 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare);
1050 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare);
1052 #define PF_RESERVED_ANCHOR "_pf"
1054 #define PFR_TFLAG_PERSIST 0x00000001
1055 #define PFR_TFLAG_CONST 0x00000002
1056 #define PFR_TFLAG_ACTIVE 0x00000004
1057 #define PFR_TFLAG_INACTIVE 0x00000008
1058 #define PFR_TFLAG_REFERENCED 0x00000010
1059 #define PFR_TFLAG_REFDANCHOR 0x00000020
1060 #define PFR_TFLAG_COUNTERS 0x00000040
1061 /* Adjust masks below when adding flags. */
1062 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
1065 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
1066 PFR_TFLAG_INACTIVE | \
1067 PFR_TFLAG_REFERENCED | \
1068 PFR_TFLAG_REFDANCHOR)
1069 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
1071 PFR_TFLAG_ACTIVE | \
1072 PFR_TFLAG_INACTIVE | \
1073 PFR_TFLAG_REFERENCED | \
1074 PFR_TFLAG_REFDANCHOR | \
1077 struct pf_kanchor_stackframe;
1080 char pfrt_anchor[MAXPATHLEN];
1081 char pfrt_name[PF_TABLE_NAME_SIZE];
1082 u_int32_t pfrt_flags;
1083 u_int8_t pfrt_fback;
1086 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1087 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1088 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1092 struct in_addr _pfra_ip4addr;
1093 struct in6_addr _pfra_ip6addr;
1098 u_int8_t pfra_fback;
1100 #define pfra_ip4addr pfra_u._pfra_ip4addr
1101 #define pfra_ip6addr pfra_u._pfra_ip6addr
1103 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1104 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1105 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
1106 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
1107 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1110 struct pfr_addr pfras_a;
1111 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1112 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1116 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1119 struct pfr_table pfrts_t;
1120 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1121 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1122 u_int64_t pfrts_match;
1123 u_int64_t pfrts_nomatch;
1126 int pfrts_refcnt[PFR_REFCNT_MAX];
1131 struct pfr_kstate_counter {
1132 counter_u64_t pkc_pcpu;
1137 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags)
1141 pfrc->pkc_pcpu = counter_u64_alloc(flags);
1142 if (pfrc->pkc_pcpu == NULL)
1148 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc)
1151 counter_u64_free(pfrc->pkc_pcpu);
1154 static inline u_int64_t
1155 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc)
1159 c = counter_u64_fetch(pfrc->pkc_pcpu);
1160 c -= pfrc->pkc_zero;
1165 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc)
1169 c = counter_u64_fetch(pfrc->pkc_pcpu);
1174 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n)
1177 counter_u64_add(pfrc->pkc_pcpu, n);
1180 struct pfr_ktstats {
1181 struct pfr_table pfrts_t;
1182 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1183 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1184 struct pfr_kstate_counter pfrkts_match;
1185 struct pfr_kstate_counter pfrkts_nomatch;
1188 int pfrkts_refcnt[PFR_REFCNT_MAX];
1191 #endif /* _KERNEL */
1193 #define pfrts_name pfrts_t.pfrt_name
1194 #define pfrts_flags pfrts_t.pfrt_flags
1196 #ifndef _SOCKADDR_UNION_DEFINED
1197 #define _SOCKADDR_UNION_DEFINED
1198 union sockaddr_union {
1200 struct sockaddr_in sin;
1201 struct sockaddr_in6 sin6;
1203 #endif /* _SOCKADDR_UNION_DEFINED */
1205 struct pfr_kcounters {
1206 counter_u64_t pfrkc_counters;
1209 #define pfr_kentry_counter(kc, dir, op, t) \
1210 ((kc)->pfrkc_counters + \
1211 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
1214 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1216 struct radix_node pfrke_node[2];
1217 union sockaddr_union pfrke_sa;
1218 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1219 struct pfr_kcounters pfrke_counters;
1223 u_int8_t pfrke_mark;
1226 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1227 RB_HEAD(pfr_ktablehead, pfr_ktable);
1229 struct pfr_ktstats pfrkt_kts;
1230 RB_ENTRY(pfr_ktable) pfrkt_tree;
1231 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1232 struct radix_node_head *pfrkt_ip4;
1233 struct radix_node_head *pfrkt_ip6;
1234 struct pfr_ktable *pfrkt_shadow;
1235 struct pfr_ktable *pfrkt_root;
1236 struct pf_kruleset *pfrkt_rs;
1240 #define pfrkt_t pfrkt_kts.pfrts_t
1241 #define pfrkt_name pfrkt_t.pfrt_name
1242 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1243 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1244 #define pfrkt_flags pfrkt_t.pfrt_flags
1245 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
1246 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
1247 #define pfrkt_packets pfrkt_kts.pfrkts_packets
1248 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
1249 #define pfrkt_match pfrkt_kts.pfrkts_match
1250 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
1251 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
1256 char pfik_name[IFNAMSIZ];
1258 RB_ENTRY(pfi_kkif) _pfik_tree;
1259 LIST_ENTRY(pfi_kkif) _pfik_list;
1261 #define pfik_tree _pfik_glue._pfik_tree
1262 #define pfik_list _pfik_glue._pfik_list
1263 struct pf_counter_u64 pfik_packets[2][2][2];
1264 struct pf_counter_u64 pfik_bytes[2][2][2];
1265 u_int32_t pfik_tzero;
1267 struct ifnet *pfik_ifp;
1268 struct ifg_group *pfik_group;
1269 u_int pfik_rulerefs;
1270 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1271 #ifdef PF_WANT_32_TO_64_COUNTER
1272 LIST_ENTRY(pfi_kkif) pfik_allkiflist;
1277 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1278 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1287 u_int64_t tot_len; /* Make Mickey money */
1293 struct icmp6_hdr icmp6;
1298 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */
1299 struct pf_addr *src; /* src address */
1300 struct pf_addr *dst; /* dst address */
1303 struct pf_mtag *pf_mtag;
1304 struct pf_rule_actions act;
1306 u_int32_t p_len; /* total length of payload */
1309 u_int16_t *proto_sum;
1310 u_int16_t flags; /* Let SCRUB trigger behavior in
1311 * state code. Easier than tags */
1312 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1313 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1317 u_int8_t dir; /* direction */
1318 u_int8_t sidx; /* key index for source */
1319 u_int8_t didx; /* key index for destination */
1323 /* flags for RDR options */
1324 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1325 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1327 /* UDP state enumeration */
1328 #define PFUDPS_NO_TRAFFIC 0
1329 #define PFUDPS_SINGLE 1
1330 #define PFUDPS_MULTIPLE 2
1332 #define PFUDPS_NSTATES 3 /* number of state levels */
1334 #define PFUDPS_NAMES { \
1341 /* Other protocol state enumeration */
1342 #define PFOTHERS_NO_TRAFFIC 0
1343 #define PFOTHERS_SINGLE 1
1344 #define PFOTHERS_MULTIPLE 2
1346 #define PFOTHERS_NSTATES 3 /* number of state levels */
1348 #define PFOTHERS_NAMES { \
1355 #define ACTION_SET(a, x) \
1361 #define REASON_SET(a, x) \
1365 if (x < PFRES_MAX) \
1366 counter_u64_add(V_pf_status.counters[x], 1); \
1369 enum pf_syncookies_mode {
1370 PF_SYNCOOKIES_NEVER = 0,
1371 PF_SYNCOOKIES_ALWAYS = 1,
1372 PF_SYNCOOKIES_ADAPTIVE = 2,
1373 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE
1376 #define PF_SYNCOOKIES_HIWATPCT 25
1377 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2)
1381 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1382 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */
1383 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */
1384 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1391 char ifname[IFNAMSIZ];
1392 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1394 enum pf_syncookies_mode syncookies_mode;
1395 bool syncookies_active;
1396 uint64_t syncookies_inflight[2];
1397 uint32_t states_halfopen;
1403 struct in_addr ipv4;
1404 struct in6_addr ipv6;
1409 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1410 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1413 * Limit the length of the fragment queue traversal. Remember
1414 * search entry points based on the fragment offset.
1416 #define PF_FRAG_ENTRY_POINTS 16
1419 * The number of entries in the fragment queue must be limited
1420 * to avoid DoS by linear seaching. Instead of a global limit,
1421 * use a limit per entry point. For large packets these sum up.
1423 #define PF_FRAG_ENTRY_LIMIT 64
1426 * ioctl parameter structures
1429 struct pfioc_pooladdr {
1437 char anchor[MAXPATHLEN];
1438 struct pf_pooladdr addr;
1444 u_int32_t pool_ticket;
1446 char anchor[MAXPATHLEN];
1447 char anchor_call[MAXPATHLEN];
1448 struct pf_rule rule;
1451 struct pfioc_natlook {
1452 struct pf_addr saddr;
1453 struct pf_addr daddr;
1454 struct pf_addr rsaddr;
1455 struct pf_addr rdaddr;
1465 struct pfioc_state {
1466 struct pfsync_state state;
1469 struct pfioc_src_node_kill {
1470 sa_family_t psnk_af;
1471 struct pf_rule_addr psnk_src;
1472 struct pf_rule_addr psnk_dst;
1477 struct pf_kstate_kill {
1478 struct pf_state_cmp psk_pfcmp;
1481 struct pf_rule_addr psk_src;
1482 struct pf_rule_addr psk_dst;
1483 struct pf_rule_addr psk_rt_addr;
1484 char psk_ifname[IFNAMSIZ];
1485 char psk_label[PF_RULE_LABEL_SIZE];
1487 bool psk_kill_match;
1491 struct pfioc_state_kill {
1492 struct pf_state_cmp psk_pfcmp;
1495 struct pf_rule_addr psk_src;
1496 struct pf_rule_addr psk_dst;
1497 char psk_ifname[IFNAMSIZ];
1498 char psk_label[PF_RULE_LABEL_SIZE];
1502 struct pfioc_states {
1506 struct pfsync_state *psu_states;
1508 #define ps_buf ps_u.psu_buf
1509 #define ps_states ps_u.psu_states
1512 struct pfioc_states_v2 {
1514 uint64_t ps_req_version;
1517 struct pf_state_export *psu_states;
1519 #define ps_buf ps_u.psu_buf
1520 #define ps_states ps_u.psu_states
1523 struct pfioc_src_nodes {
1527 struct pf_src_node *psu_src_nodes;
1529 #define psn_buf psn_u.psu_buf
1530 #define psn_src_nodes psn_u.psu_src_nodes
1534 char ifname[IFNAMSIZ];
1542 struct pfioc_limit {
1547 struct pfioc_altq_v0 {
1551 struct pf_altq_v0 altq;
1554 struct pfioc_altq_v1 {
1559 * Placed here so code that only uses the above parameters can be
1560 * written entirely in terms of the v0 or v1 type.
1563 struct pf_altq_v1 altq;
1567 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1568 * the latest version of struct pf_altq_vX as it has that struct as a
1571 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1573 struct pfioc_qstats_v0 {
1581 struct pfioc_qstats_v1 {
1588 * Placed here so code that only uses the above parameters can be
1589 * written entirely in terms of the v0 or v1 type.
1591 u_int32_t version; /* Requested version of stats struct */
1594 /* Latest version of struct pfioc_qstats_vX */
1595 #define PFIOC_QSTATS_VERSION 1
1597 struct pfioc_ruleset {
1599 char path[MAXPATHLEN];
1600 char name[PF_ANCHOR_NAME_SIZE];
1603 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1604 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1605 struct pfioc_trans {
1606 int size; /* number of elements */
1607 int esize; /* size of each element in bytes */
1608 struct pfioc_trans_e {
1610 char anchor[MAXPATHLEN];
1615 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1616 #define PFR_FLAG_DUMMY 0x00000002
1617 #define PFR_FLAG_FEEDBACK 0x00000004
1618 #define PFR_FLAG_CLSTATS 0x00000008
1619 #define PFR_FLAG_ADDRSTOO 0x00000010
1620 #define PFR_FLAG_REPLACE 0x00000020
1621 #define PFR_FLAG_ALLRSETS 0x00000040
1622 #define PFR_FLAG_ALLMASK 0x0000007F
1624 #define PFR_FLAG_USERIOCTL 0x10000000
1627 struct pfioc_table {
1628 struct pfr_table pfrio_table;
1637 u_int32_t pfrio_ticket;
1639 #define pfrio_exists pfrio_nadd
1640 #define pfrio_nzero pfrio_nadd
1641 #define pfrio_nmatch pfrio_nadd
1642 #define pfrio_naddr pfrio_size2
1643 #define pfrio_setflag pfrio_size2
1644 #define pfrio_clrflag pfrio_nadd
1646 struct pfioc_iface {
1647 char pfiio_name[IFNAMSIZ];
1660 #define DIOCSTART _IO ('D', 1)
1661 #define DIOCSTOP _IO ('D', 2)
1662 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1663 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv)
1664 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1665 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1666 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv)
1667 /* XXX cut 8 - 17 */
1668 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1669 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv)
1670 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1671 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv)
1672 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1673 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1674 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv)
1675 #define DIOCCLRSTATUS _IO ('D', 22)
1676 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1677 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1678 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1679 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1680 /* XXX cut 26 - 28 */
1681 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1682 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1683 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1684 #define DIOCCLRRULECTRS _IO ('D', 38)
1685 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1686 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1687 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1688 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv)
1689 #define DIOCSTARTALTQ _IO ('D', 42)
1690 #define DIOCSTOPALTQ _IO ('D', 43)
1691 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1692 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1693 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1694 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1695 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1696 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1697 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1698 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1699 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1700 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1701 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1702 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1703 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1704 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1705 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1706 /* XXX cut 55 - 57 */
1707 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1708 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1709 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1710 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1711 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1712 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1713 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1714 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1715 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1716 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1717 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1718 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1719 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1720 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1721 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1722 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1723 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1724 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1725 #define DIOCOSFPFLUSH _IO('D', 78)
1726 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1727 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1728 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1729 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1730 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1731 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1732 #define DIOCCLRSRCNODES _IO('D', 85)
1733 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1734 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1735 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1736 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1737 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1738 #define DIOCKEEPCOUNTERS _IOWR('D', 92, struct pfioc_nv)
1739 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2)
1740 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv)
1741 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv)
1743 struct pf_ifspeed_v0 {
1744 char ifname[IFNAMSIZ];
1748 struct pf_ifspeed_v1 {
1749 char ifname[IFNAMSIZ];
1750 u_int32_t baudrate32;
1751 /* layout identical to struct pf_ifspeed_v0 up to this point */
1755 /* Latest version of struct pf_ifspeed_vX */
1756 #define PF_IFSPEED_VERSION 1
1758 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
1759 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
1762 * Compatibility and convenience macros
1765 #ifdef PFIOC_USE_LATEST
1767 * Maintaining in-tree consumers of the ioctl interface is easier when that
1768 * code can be written in terms old names that refer to the latest interface
1769 * version as that reduces the required changes in the consumers to those
1770 * that are functionally necessary to accommodate a new interface version.
1772 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
1773 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
1774 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
1776 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
1777 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
1778 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
1779 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
1780 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
1781 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
1784 * When building out-of-tree code that is written for the old interface,
1785 * such as may exist in ports for example, resolve the old struct tags and
1786 * ioctl command names to the v0 versions.
1788 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
1789 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
1790 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
1792 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
1793 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
1794 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
1795 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
1796 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
1797 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
1798 #endif /* PFIOC_USE_LATEST */
1799 #endif /* _KERNEL */
1802 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node);
1804 struct pf_ksrc_node_list nodes;
1809 LIST_HEAD(, pf_state_key) keys;
1814 LIST_HEAD(, pf_kstate) states;
1818 extern u_long pf_ioctl_maxcount;
1819 extern u_long pf_hashmask;
1820 extern u_long pf_srchashmask;
1821 #define PF_HASHSIZ (131072)
1822 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1823 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1824 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1825 #define V_pf_keyhash VNET(pf_keyhash)
1826 #define V_pf_idhash VNET(pf_idhash)
1827 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1828 #define V_pf_srchash VNET(pf_srchash)
1830 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1832 VNET_DECLARE(void *, pf_swi_cookie);
1833 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1834 VNET_DECLARE(struct intr_event *, pf_swi_ie);
1835 #define V_pf_swi_ie VNET(pf_swi_ie)
1837 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1838 #define V_pf_stateid VNET(pf_stateid)
1840 TAILQ_HEAD(pf_altqqueue, pf_altq);
1841 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
1842 #define V_pf_altqs VNET(pf_altqs)
1843 VNET_DECLARE(struct pf_kpalist, pf_pabuf);
1844 #define V_pf_pabuf VNET(pf_pabuf)
1846 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1847 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1848 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1849 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1850 VNET_DECLARE(int, altqs_inactive_open);
1851 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1852 VNET_DECLARE(u_int32_t, ticket_pabuf);
1853 #define V_ticket_pabuf VNET(ticket_pabuf)
1854 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1855 #define V_pf_altqs_active VNET(pf_altqs_active)
1856 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
1857 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
1858 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1859 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1860 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
1861 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
1863 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules);
1864 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1866 #ifdef PF_WANT_32_TO_64_COUNTER
1867 LIST_HEAD(allkiflist_head, pfi_kkif);
1868 VNET_DECLARE(struct allkiflist_head, pf_allkiflist);
1869 #define V_pf_allkiflist VNET(pf_allkiflist)
1870 VNET_DECLARE(size_t, pf_allkifcount);
1871 #define V_pf_allkifcount VNET(pf_allkifcount)
1872 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker);
1873 #define V_pf_kifmarker VNET(pf_kifmarker)
1875 LIST_HEAD(allrulelist_head, pf_krule);
1876 VNET_DECLARE(struct allrulelist_head, pf_allrulelist);
1877 #define V_pf_allrulelist VNET(pf_allrulelist)
1878 VNET_DECLARE(size_t, pf_allrulecount);
1879 #define V_pf_allrulecount VNET(pf_allrulecount)
1880 VNET_DECLARE(struct pf_krule *, pf_rulemarker);
1881 #define V_pf_rulemarker VNET(pf_rulemarker)
1884 void pf_initialize(void);
1885 void pf_mtag_initialize(void);
1886 void pf_mtag_cleanup(void);
1887 void pf_cleanup(void);
1889 struct pf_mtag *pf_get_mtag(struct mbuf *);
1891 extern void pf_calc_skip_steps(struct pf_krulequeue *);
1893 extern void pf_altq_ifnet_event(struct ifnet *, int);
1895 VNET_DECLARE(uma_zone_t, pf_state_z);
1896 #define V_pf_state_z VNET(pf_state_z)
1897 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1898 #define V_pf_state_key_z VNET(pf_state_key_z)
1899 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1900 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1902 extern void pf_purge_thread(void *);
1903 extern void pf_unload_vnet_purge(void);
1904 extern void pf_intr(void *);
1905 extern void pf_purge_expired_src_nodes(void);
1907 extern int pf_unlink_state(struct pf_kstate *, u_int);
1908 #define PF_ENTER_LOCKED 0x00000001
1909 #define PF_RETURN_LOCKED 0x00000002
1910 extern int pf_state_insert(struct pfi_kkif *,
1912 struct pf_state_key *,
1913 struct pf_state_key *,
1914 struct pf_kstate *);
1915 extern struct pf_kstate *pf_alloc_state(int);
1916 extern void pf_free_state(struct pf_kstate *);
1918 static __inline void
1919 pf_ref_state(struct pf_kstate *s)
1922 refcount_acquire(&s->refs);
1926 pf_release_state(struct pf_kstate *s)
1929 if (refcount_release(&s->refs)) {
1937 pf_release_staten(struct pf_kstate *s, u_int n)
1940 if (refcount_releasen(&s->refs, n)) {
1947 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t);
1948 extern struct pf_kstate *pf_find_state_all(struct pf_state_key_cmp *,
1950 extern bool pf_find_state_all_exists(struct pf_state_key_cmp *,
1952 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *,
1953 struct pf_krule *, sa_family_t, int);
1954 extern void pf_unlink_src_node(struct pf_ksrc_node *);
1955 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *);
1956 extern void pf_print_state(struct pf_kstate *);
1957 extern void pf_print_flags(u_int8_t);
1958 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1960 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1961 u_int16_t, u_int16_t, u_int8_t);
1963 VNET_DECLARE(struct ifnet *, sync_ifp);
1964 #define V_sync_ifp VNET(sync_ifp);
1965 VNET_DECLARE(struct pf_krule, pf_default_rule);
1966 #define V_pf_default_rule VNET(pf_default_rule)
1967 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1969 void pf_free_rule(struct pf_krule *);
1972 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1973 int pf_normalize_ip(struct mbuf **, int, struct pfi_kkif *, u_short *,
1978 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1979 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kkif *, u_short *,
1981 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1982 struct pf_addr *, struct pf_addr *, u_int8_t);
1983 void pf_addr_inc(struct pf_addr *, sa_family_t);
1984 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1987 u_int32_t pf_new_isn(struct pf_kstate *);
1988 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1990 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1991 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1993 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1994 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t,
1996 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t,
1998 void pf_send_deferred_syn(struct pf_kstate *);
1999 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
2000 struct pf_addr *, sa_family_t);
2001 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
2002 struct pf_addr *, sa_family_t);
2003 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
2005 void pf_normalize_init(void);
2006 void pf_normalize_cleanup(void);
2007 int pf_normalize_tcp(int, struct pfi_kkif *, struct mbuf *, int, int, void *,
2009 void pf_normalize_tcp_cleanup(struct pf_kstate *);
2010 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
2011 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
2012 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
2013 u_short *, struct tcphdr *, struct pf_kstate *,
2014 struct pf_state_peer *, struct pf_state_peer *, int *);
2016 pf_state_expires(const struct pf_kstate *);
2017 void pf_purge_expired_fragments(void);
2018 void pf_purge_fragments(uint32_t);
2019 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *,
2021 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
2022 struct pf_state_key *pf_alloc_state_key(int);
2023 void pfr_initialize(void);
2024 void pfr_cleanup(void);
2025 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
2026 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
2027 u_int64_t, int, int, int);
2028 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
2029 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
2031 pfr_attach_table(struct pf_kruleset *, char *);
2032 void pfr_detach_table(struct pfr_ktable *);
2033 int pfr_clr_tables(struct pfr_table *, int *, int);
2034 int pfr_add_tables(struct pfr_table *, int, int *, int);
2035 int pfr_del_tables(struct pfr_table *, int, int *, int);
2036 int pfr_table_count(struct pfr_table *, int);
2037 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
2038 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
2039 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
2040 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
2041 int pfr_clr_addrs(struct pfr_table *, int *, int);
2042 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
2043 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2045 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2047 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2048 int *, int *, int *, int, u_int32_t);
2049 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
2050 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
2051 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
2053 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2055 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
2056 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
2057 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
2058 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
2059 int *, u_int32_t, int);
2061 MALLOC_DECLARE(PFI_MTYPE);
2062 VNET_DECLARE(struct pfi_kkif *, pfi_all);
2063 #define V_pfi_all VNET(pfi_all)
2065 void pfi_initialize(void);
2066 void pfi_initialize_vnet(void);
2067 void pfi_cleanup(void);
2068 void pfi_cleanup_vnet(void);
2069 void pfi_kkif_ref(struct pfi_kkif *);
2070 void pfi_kkif_unref(struct pfi_kkif *);
2071 struct pfi_kkif *pfi_kkif_find(const char *);
2072 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *);
2073 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *);
2074 void pfi_kkif_purge(void);
2075 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2077 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2078 void pfi_dynaddr_remove(struct pfi_dynaddr *);
2079 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2080 void pfi_update_status(const char *, struct pf_status *);
2081 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
2082 int pfi_set_flags(const char *, int);
2083 int pfi_clear_flags(const char *, int);
2085 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int);
2086 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
2087 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
2090 u_int16_t pf_get_mss(struct mbuf *, int, u_int16_t, sa_family_t);
2091 u_int8_t pf_get_wscale(struct mbuf *, int, u_int16_t, sa_family_t);
2092 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t,
2093 const struct pf_addr *, const struct pf_addr *,
2094 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2095 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int,
2097 void pf_send_tcp(const struct pf_krule *, sa_family_t,
2098 const struct pf_addr *, const struct pf_addr *,
2099 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2100 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int,
2103 void pf_syncookies_init(void);
2104 void pf_syncookies_cleanup(void);
2105 int pf_get_syncookies(struct pfioc_nv *);
2106 int pf_set_syncookies(struct pfioc_nv *);
2107 int pf_synflood_check(struct pf_pdesc *);
2108 void pf_syncookie_send(struct mbuf *m, int off,
2110 u_int8_t pf_syncookie_validate(struct pf_pdesc *);
2111 struct mbuf * pf_syncookie_recreate_syn(uint8_t, int,
2114 VNET_DECLARE(struct pf_kstatus, pf_status);
2115 #define V_pf_status VNET(pf_status)
2121 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
2122 #define V_pf_limits VNET(pf_limits)
2124 #endif /* _KERNEL */
2127 VNET_DECLARE(struct pf_kanchor_global, pf_anchors);
2128 #define V_pf_anchors VNET(pf_anchors)
2129 VNET_DECLARE(struct pf_kanchor, pf_main_anchor);
2130 #define V_pf_main_anchor VNET(pf_main_anchor)
2131 #define pf_main_ruleset V_pf_main_anchor.ruleset
2133 int pf_get_ruleset_number(u_int8_t);
2134 void pf_init_kruleset(struct pf_kruleset *);
2135 int pf_kanchor_setup(struct pf_krule *,
2136 const struct pf_kruleset *, const char *);
2137 int pf_kanchor_nvcopyout(const struct pf_kruleset *,
2138 const struct pf_krule *, nvlist_t *);
2139 int pf_kanchor_copyout(const struct pf_kruleset *,
2140 const struct pf_krule *, struct pfioc_rule *);
2141 void pf_kanchor_remove(struct pf_krule *);
2142 void pf_remove_if_empty_kruleset(struct pf_kruleset *);
2143 struct pf_kruleset *pf_find_kruleset(const char *);
2144 struct pf_kruleset *pf_find_or_create_kruleset(const char *);
2145 void pf_rs_initialize(void);
2147 void pf_krule_free(struct pf_krule *);
2150 /* The fingerprint functions can be linked into userland programs (tcpdump) */
2151 int pf_osfp_add(struct pf_osfp_ioctl *);
2153 struct pf_osfp_enlist *
2154 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
2155 const struct tcphdr *);
2156 #endif /* _KERNEL */
2157 void pf_osfp_flush(void);
2158 int pf_osfp_get(struct pf_osfp_ioctl *);
2159 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2162 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
2164 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *,
2165 struct pf_kruleset **, int, struct pf_krule **,
2166 struct pf_krule **, int *);
2167 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *,
2168 struct pf_kruleset **, int, struct pf_krule **,
2169 struct pf_krule **, int *);
2171 int pf_map_addr(u_int8_t, struct pf_krule *,
2172 struct pf_addr *, struct pf_addr *,
2173 struct pf_addr *, struct pf_ksrc_node **);
2174 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
2175 int, int, struct pfi_kkif *, struct pf_ksrc_node **,
2176 struct pf_state_key **, struct pf_state_key **,
2177 struct pf_addr *, struct pf_addr *,
2178 uint16_t, uint16_t, struct pf_kanchor_stackframe *);
2180 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
2181 struct pf_addr *, u_int16_t, u_int16_t);
2182 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
2184 struct pfi_kkif *pf_kkif_create(int);
2185 void pf_kkif_free(struct pfi_kkif *);
2186 void pf_kkif_zero(struct pfi_kkif *);
2187 #endif /* _KERNEL */
2189 #endif /* _NET_PFVAR_H_ */