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>
46 #include <sys/sysctl.h>
49 #include <sys/rmlock.h>
54 #include <net/radix.h>
55 #include <netinet/in.h>
57 #include <netinet/ip.h>
58 #include <netinet/tcp.h>
59 #include <netinet/udp.h>
60 #include <netinet/ip_icmp.h>
61 #include <netinet/icmp6.h>
64 #include <netpfil/pf/pf.h>
65 #include <netpfil/pf/pf_altq.h>
66 #include <netpfil/pf/pf_mtag.h>
71 #define PF_WANT_32_TO_64_COUNTER
75 * A hybrid of 32-bit and 64-bit counters which can be used on platforms where
76 * counter(9) is very expensive.
78 * As 32-bit counters are expected to overflow, a periodic job sums them up to
79 * a saved 64-bit state. Fetching the value still walks all CPUs to get the most
82 #ifdef PF_WANT_32_TO_64_COUNTER
83 struct pf_counter_u64_pcpu {
88 struct pf_counter_u64 {
89 struct pf_counter_u64_pcpu *pfcu64_pcpu;
90 u_int64_t pfcu64_value;
95 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
98 pfcu64->pfcu64_value = 0;
99 pfcu64->pfcu64_seqc = 0;
100 pfcu64->pfcu64_pcpu = uma_zalloc_pcpu(pcpu_zone_8, flags | M_ZERO);
101 if (__predict_false(pfcu64->pfcu64_pcpu == NULL))
107 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
110 uma_zfree_pcpu(pcpu_zone_8, pfcu64->pfcu64_pcpu);
114 pf_counter_u64_critical_enter(void)
121 pf_counter_u64_critical_exit(void)
128 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
130 struct pf_counter_u64_pcpu *pcpu;
133 MPASS(curthread->td_critnest > 0);
134 pcpu = zpcpu_get(pfcu64->pfcu64_pcpu);
135 val = atomic_load_int(&pcpu->current);
136 atomic_store_int(&pcpu->current, val + n);
140 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
144 pf_counter_u64_add_protected(pfcu64, n);
148 static inline u_int64_t
149 pf_counter_u64_periodic(struct pf_counter_u64 *pfcu64)
151 struct pf_counter_u64_pcpu *pcpu;
156 MPASS(curthread->td_critnest > 0);
157 seqc_write_begin(&pfcu64->pfcu64_seqc);
158 sum = pfcu64->pfcu64_value;
160 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
161 val = atomic_load_int(&pcpu->current);
162 sum += (uint32_t)(val - pcpu->snapshot);
163 pcpu->snapshot = val;
165 pfcu64->pfcu64_value = sum;
166 seqc_write_end(&pfcu64->pfcu64_seqc);
170 static inline u_int64_t
171 pf_counter_u64_fetch(struct pf_counter_u64 *pfcu64)
173 struct pf_counter_u64_pcpu *pcpu;
179 seqc = seqc_read(&pfcu64->pfcu64_seqc);
182 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
183 sum += (uint32_t)(atomic_load_int(&pcpu->current) -pcpu->snapshot);
185 sum += pfcu64->pfcu64_value;
186 if (seqc_consistent(&pfcu64->pfcu64_seqc, seqc))
193 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
195 struct pf_counter_u64_pcpu *pcpu;
198 MPASS(curthread->td_critnest > 0);
199 seqc_write_begin(&pfcu64->pfcu64_seqc);
201 pcpu = zpcpu_get_cpu(pfcu64->pfcu64_pcpu, cpu);
202 pcpu->snapshot = atomic_load_int(&pcpu->current);
204 pfcu64->pfcu64_value = 0;
205 seqc_write_end(&pfcu64->pfcu64_seqc);
209 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
213 pf_counter_u64_zero_protected(pfcu64);
217 struct pf_counter_u64 {
218 counter_u64_t counter;
222 pf_counter_u64_init(struct pf_counter_u64 *pfcu64, int flags)
225 pfcu64->counter = counter_u64_alloc(flags);
226 if (__predict_false(pfcu64->counter == NULL))
232 pf_counter_u64_deinit(struct pf_counter_u64 *pfcu64)
235 counter_u64_free(pfcu64->counter);
239 pf_counter_u64_critical_enter(void)
245 pf_counter_u64_critical_exit(void)
251 pf_counter_u64_add_protected(struct pf_counter_u64 *pfcu64, uint32_t n)
254 counter_u64_add(pfcu64->counter, n);
258 pf_counter_u64_add(struct pf_counter_u64 *pfcu64, uint32_t n)
261 pf_counter_u64_add_protected(pfcu64, n);
264 static inline u_int64_t
265 pf_counter_u64_fetch(struct pf_counter_u64 *pfcu64)
268 return (counter_u64_fetch(pfcu64->counter));
272 pf_counter_u64_zero_protected(struct pf_counter_u64 *pfcu64)
275 counter_u64_zero(pfcu64->counter);
279 pf_counter_u64_zero(struct pf_counter_u64 *pfcu64)
282 pf_counter_u64_zero_protected(pfcu64);
286 SYSCTL_DECL(_net_pf);
287 MALLOC_DECLARE(M_PFHASH);
289 SDT_PROVIDER_DECLARE(pf);
292 TAILQ_ENTRY(pfi_dynaddr) entry;
293 struct pf_addr pfid_addr4;
294 struct pf_addr pfid_mask4;
295 struct pf_addr pfid_addr6;
296 struct pf_addr pfid_mask6;
297 struct pfr_ktable *pfid_kt;
298 struct pfi_kkif *pfid_kif;
299 int pfid_net; /* mask or 128 */
300 int pfid_acnt4; /* address count IPv4 */
301 int pfid_acnt6; /* address count IPv6 */
302 sa_family_t pfid_af; /* rule af */
303 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
307 * Address manipulation macros
309 #define HTONL(x) (x) = htonl((__uint32_t)(x))
310 #define HTONS(x) (x) = htons((__uint16_t)(x))
311 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
312 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
316 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
317 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
318 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
321 #define PF_STATE_LOCK(s) \
323 struct pf_kstate *_s = (s); \
324 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
325 MPASS(_s->lock == &_ih->lock); \
326 mtx_lock(_s->lock); \
328 #define PF_STATE_UNLOCK(s) \
330 struct pf_kstate *_s = (s); \
331 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
332 MPASS(_s->lock == &_ih->lock); \
333 mtx_unlock(_s->lock); \
336 #define PF_STATE_LOCK(s) mtx_lock(s->lock)
337 #define PF_STATE_UNLOCK(s) mtx_unlock(s->lock)
341 #define PF_STATE_LOCK_ASSERT(s) \
343 struct pf_kstate *_s = (s); \
344 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(_s)]; \
345 MPASS(_s->lock == &_ih->lock); \
346 PF_HASHROW_ASSERT(_ih); \
348 #else /* !INVARIANTS */
349 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
350 #endif /* INVARIANTS */
352 extern struct mtx_padalign pf_unlnkdrules_mtx;
353 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
354 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
356 extern struct rmlock pf_rules_lock;
357 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
358 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
359 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
360 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
361 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
362 #define PF_RULES_WOWNED() rm_wowned(&pf_rules_lock)
363 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
364 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
365 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
367 extern struct mtx_padalign pf_table_stats_lock;
368 #define PF_TABLE_STATS_LOCK() mtx_lock(&pf_table_stats_lock)
369 #define PF_TABLE_STATS_UNLOCK() mtx_unlock(&pf_table_stats_lock)
370 #define PF_TABLE_STATS_OWNED() mtx_owned(&pf_table_stats_lock)
371 #define PF_TABLE_STATS_ASSERT() mtx_assert(&pf_rules_lock, MA_OWNED)
373 extern struct sx pf_end_lock;
376 #define PFLOG_MODVER 1
377 #define PFSYNC_MODVER 1
379 #define PFLOG_MINVER 1
380 #define PFLOG_PREFVER PFLOG_MODVER
381 #define PFLOG_MAXVER 1
382 #define PFSYNC_MINVER 1
383 #define PFSYNC_PREFVER PFSYNC_MODVER
384 #define PFSYNC_MAXVER 1
394 #define PF_INET6_ONLY
400 #define PF_INET_INET6
406 #define PF_INET_INET6
410 /* Both IPv4 and IPv6 */
413 #define PF_AEQ(a, b, c) \
414 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
415 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
416 (a)->addr32[2] == (b)->addr32[2] && \
417 (a)->addr32[1] == (b)->addr32[1] && \
418 (a)->addr32[0] == (b)->addr32[0])) \
420 #define PF_ANEQ(a, b, c) \
421 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
422 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
423 (a)->addr32[1] != (b)->addr32[1] || \
424 (a)->addr32[2] != (b)->addr32[2] || \
425 (a)->addr32[3] != (b)->addr32[3]))) \
427 #define PF_AZERO(a, c) \
428 ((c == AF_INET && !(a)->addr32[0]) || \
429 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
430 !(a)->addr32[2] && !(a)->addr32[3] )) \
432 #define PF_MATCHA(n, a, m, b, f) \
433 pf_match_addr(n, a, m, b, f)
435 #define PF_ACPY(a, b, f) \
438 #define PF_AINC(a, f) \
441 #define PF_POOLMASK(a, b, c, d, f) \
442 pf_poolmask(a, b, c, d, f)
450 #define PF_AEQ(a, b, c) \
451 ((a)->addr32[3] == (b)->addr32[3] && \
452 (a)->addr32[2] == (b)->addr32[2] && \
453 (a)->addr32[1] == (b)->addr32[1] && \
454 (a)->addr32[0] == (b)->addr32[0]) \
456 #define PF_ANEQ(a, b, c) \
457 ((a)->addr32[3] != (b)->addr32[3] || \
458 (a)->addr32[2] != (b)->addr32[2] || \
459 (a)->addr32[1] != (b)->addr32[1] || \
460 (a)->addr32[0] != (b)->addr32[0]) \
462 #define PF_AZERO(a, c) \
463 (!(a)->addr32[0] && \
468 #define PF_MATCHA(n, a, m, b, f) \
469 pf_match_addr(n, a, m, b, f)
471 #define PF_ACPY(a, b, f) \
474 #define PF_AINC(a, f) \
477 #define PF_POOLMASK(a, b, c, d, f) \
478 pf_poolmask(a, b, c, d, f)
485 #define PF_AEQ(a, b, c) \
486 ((a)->addr32[0] == (b)->addr32[0])
488 #define PF_ANEQ(a, b, c) \
489 ((a)->addr32[0] != (b)->addr32[0])
491 #define PF_AZERO(a, c) \
494 #define PF_MATCHA(n, a, m, b, f) \
495 pf_match_addr(n, a, m, b, f)
497 #define PF_ACPY(a, b, f) \
498 (a)->v4.s_addr = (b)->v4.s_addr
500 #define PF_AINC(a, f) \
502 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
505 #define PF_POOLMASK(a, b, c, d, f) \
507 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
508 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
511 #endif /* PF_INET_ONLY */
512 #endif /* PF_INET6_ONLY */
513 #endif /* PF_INET_INET6 */
516 * XXX callers not FIB-aware in our version of pf yet.
517 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
519 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
521 (((aw)->type == PF_ADDR_NOROUTE && \
522 pf_routable((x), (af), NULL, (rtid))) || \
523 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
524 pf_routable((x), (af), (ifp), (rtid))) || \
525 ((aw)->type == PF_ADDR_TABLE && \
526 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
527 ((aw)->type == PF_ADDR_DYNIFTL && \
528 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
529 ((aw)->type == PF_ADDR_RANGE && \
530 !pf_match_addr_range(&(aw)->v.a.addr, \
531 &(aw)->v.a.mask, (x), (af))) || \
532 ((aw)->type == PF_ADDR_ADDRMASK && \
533 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
534 !PF_MATCHA(0, &(aw)->v.a.addr, \
535 &(aw)->v.a.mask, (x), (af))))) != \
539 #define PF_ALGNMNT(off) (((off) % 2) == 0)
543 struct pf_kpooladdr {
544 struct pf_addr_wrap addr;
545 TAILQ_ENTRY(pf_kpooladdr) entries;
546 char ifname[IFNAMSIZ];
547 struct pfi_kkif *kif;
550 TAILQ_HEAD(pf_kpalist, pf_kpooladdr);
553 struct pf_kpalist list;
554 struct pf_kpooladdr *cur;
555 struct pf_poolhashkey key;
556 struct pf_addr counter;
557 struct pf_mape_portset mape;
559 u_int16_t proxy_port[2];
563 struct pf_rule_actions {
567 uint16_t dnrpipe; /* Reverse direction pipe */
572 struct pf_krule *ptr;
577 struct pf_rule_addr src;
578 struct pf_rule_addr dst;
579 union pf_krule_ptr skip[PF_SKIP_COUNT];
580 char label[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
581 uint32_t ridentifier;
582 char ifname[IFNAMSIZ];
583 char qname[PF_QNAME_SIZE];
584 char pqname[PF_QNAME_SIZE];
585 char tagname[PF_TAG_NAME_SIZE];
586 char match_tagname[PF_TAG_NAME_SIZE];
588 char overload_tblname[PF_TABLE_NAME_SIZE];
590 TAILQ_ENTRY(pf_krule) entries;
591 struct pf_kpool rpool;
593 struct pf_counter_u64 evaluations;
594 struct pf_counter_u64 packets[2];
595 struct pf_counter_u64 bytes[2];
597 struct pfi_kkif *kif;
598 struct pf_kanchor *anchor;
599 struct pfr_ktable *overload_tbl;
601 pf_osfp_t os_fingerprint;
604 u_int32_t timeout[PFTM_MAX];
605 u_int32_t max_states;
606 u_int32_t max_src_nodes;
607 u_int32_t max_src_states;
608 u_int32_t max_src_conn;
617 u_int32_t free_flags;
623 counter_u64_t states_cur;
624 counter_u64_t states_tot;
625 counter_u64_t src_nodes;
627 u_int16_t return_icmp;
628 u_int16_t return_icmp6;
632 u_int16_t scrub_flags;
634 struct pf_rule_uid uid;
635 struct pf_rule_gid gid;
645 u_int8_t match_tag_not;
661 u_int8_t anchor_relative;
662 u_int8_t anchor_wildcard;
666 u_int8_t set_prio[2];
673 #ifdef PF_WANT_32_TO_64_COUNTER
674 LIST_ENTRY(pf_krule) allrulelist;
679 struct pf_ksrc_node {
680 LIST_ENTRY(pf_ksrc_node) entry;
682 struct pf_addr raddr;
683 union pf_krule_ptr rule;
684 struct pfi_kkif *kif;
685 counter_u64_t bytes[2];
686 counter_u64_t packets[2];
689 struct pf_threshold conn_rate;
697 struct pf_state_scrub {
698 struct timeval pfss_last; /* time received last packet */
699 u_int32_t pfss_tsecr; /* last echoed timestamp */
700 u_int32_t pfss_tsval; /* largest timestamp */
701 u_int32_t pfss_tsval0; /* original timestamp */
702 u_int16_t pfss_flags;
703 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
704 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
705 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
706 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
707 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
708 u_int8_t pfss_ttl; /* stashed TTL */
710 u_int32_t pfss_ts_mod; /* timestamp modulation */
713 struct pf_state_host {
719 struct pf_state_peer {
720 struct pf_state_scrub *scrub; /* state is scrubbed */
721 u_int32_t seqlo; /* Max sequence number sent */
722 u_int32_t seqhi; /* Max the other end ACKd + win */
723 u_int32_t seqdiff; /* Sequence number modulator */
724 u_int16_t max_win; /* largest window (pre scaling) */
725 u_int16_t mss; /* Maximum segment size option */
726 u_int8_t state; /* active state level */
727 u_int8_t wscale; /* window scaling factor */
728 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
732 /* Keep synced with struct pf_state_key. */
733 struct pf_state_key_cmp {
734 struct pf_addr addr[2];
741 struct pf_state_key {
742 struct pf_addr addr[2];
748 LIST_ENTRY(pf_state_key) entry;
749 TAILQ_HEAD(, pf_kstate) states[2];
752 /* Keep synced with struct pf_kstate. */
753 struct pf_state_cmp {
760 #define PFSTATE_ALLOWOPTS 0x01
761 #define PFSTATE_SLOPPY 0x02
762 /* was PFSTATE_PFLOW 0x04 */
763 #define PFSTATE_NOSYNC 0x08
764 #define PFSTATE_ACK 0x10
765 #define PFRULE_DN_IS_PIPE 0x40
766 #define PFRULE_DN_IS_QUEUE 0x80
767 #define PFSTATE_SETPRIO 0x0200
768 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
770 struct pf_state_scrub_export {
772 uint8_t pfss_ttl; /* stashed TTL */
773 #define PF_SCRUB_FLAG_VALID 0x01
775 uint32_t pfss_ts_mod; /* timestamp modulation */
778 struct pf_state_key_export {
779 struct pf_addr addr[2];
783 struct pf_state_peer_export {
784 struct pf_state_scrub_export scrub; /* state is scrubbed */
785 uint32_t seqlo; /* Max sequence number sent */
786 uint32_t seqhi; /* Max the other end ACKd + win */
787 uint32_t seqdiff; /* Sequence number modulator */
788 uint16_t max_win; /* largest window (pre scaling) */
789 uint16_t mss; /* Maximum segment size option */
790 uint8_t state; /* active state level */
791 uint8_t wscale; /* window scaling factor */
794 _Static_assert(sizeof(struct pf_state_peer_export) == 32, "size incorrect");
796 struct pf_state_export {
798 #define PF_STATE_VERSION 20210706
800 char ifname[IFNAMSIZ];
801 char orig_ifname[IFNAMSIZ];
802 struct pf_state_key_export key[2];
803 struct pf_state_peer_export src;
804 struct pf_state_peer_export dst;
805 struct pf_addr rt_addr;
827 _Static_assert(sizeof(struct pf_state_export) == 384, "size incorrect");
832 * Area shared with pf_state_cmp
842 u_int8_t state_flags;
844 u_int8_t sync_state; /* PFSYNC_S_x */
845 u_int8_t sync_updates; /* XXX */
848 TAILQ_ENTRY(pf_kstate) sync_list;
849 TAILQ_ENTRY(pf_kstate) key_list[2];
850 LIST_ENTRY(pf_kstate) entry;
851 struct pf_state_peer src;
852 struct pf_state_peer dst;
853 union pf_krule_ptr rule;
854 union pf_krule_ptr anchor;
855 union pf_krule_ptr nat_rule;
856 struct pf_addr rt_addr;
857 struct pf_state_key *key[2]; /* addresses stack and wire */
858 struct pfi_kkif *kif;
859 struct pfi_kkif *orig_kif; /* The real kif, even if we're a floating state (i.e. if == V_pfi_all). */
860 struct pfi_kkif *rt_kif;
861 struct pf_ksrc_node *src_node;
862 struct pf_ksrc_node *nat_src_node;
863 u_int64_t packets[2];
867 u_int32_t pfsync_time;
877 * Size <= fits 13 objects per page on LP64. Try to not grow the struct beyond that.
879 _Static_assert(sizeof(struct pf_kstate) <= 312, "pf_kstate size crosses 312 bytes");
883 * Unified state structures for pulling states out of the kernel
884 * used by pfsync(4) and the pf(4) ioctl.
886 struct pfsync_state_scrub {
887 u_int16_t pfss_flags;
888 u_int8_t pfss_ttl; /* stashed TTL */
889 #define PFSYNC_SCRUB_FLAG_VALID 0x01
891 u_int32_t pfss_ts_mod; /* timestamp modulation */
894 struct pfsync_state_peer {
895 struct pfsync_state_scrub scrub; /* state is scrubbed */
896 u_int32_t seqlo; /* Max sequence number sent */
897 u_int32_t seqhi; /* Max the other end ACKd + win */
898 u_int32_t seqdiff; /* Sequence number modulator */
899 u_int16_t max_win; /* largest window (pre scaling) */
900 u_int16_t mss; /* Maximum segment size option */
901 u_int8_t state; /* active state level */
902 u_int8_t wscale; /* window scaling factor */
906 struct pfsync_state_key {
907 struct pf_addr addr[2];
911 struct pfsync_state {
913 char ifname[IFNAMSIZ];
914 struct pfsync_state_key key[2];
915 struct pfsync_state_peer src;
916 struct pfsync_state_peer dst;
917 struct pf_addr rt_addr;
923 u_int32_t packets[2][2];
924 u_int32_t bytes[2][2];
931 u_int8_t state_flags;
939 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
940 typedef void pfsync_insert_state_t(struct pf_kstate *);
941 typedef void pfsync_update_state_t(struct pf_kstate *);
942 typedef void pfsync_delete_state_t(struct pf_kstate *);
943 typedef void pfsync_clear_states_t(u_int32_t, const char *);
944 typedef int pfsync_defer_t(struct pf_kstate *, struct mbuf *);
945 typedef void pfsync_detach_ifnet_t(struct ifnet *);
947 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
948 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
949 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
950 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
951 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
952 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
953 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
954 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
955 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
956 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
957 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
958 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
959 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
961 void pfsync_state_export(struct pfsync_state *,
963 void pf_state_export(struct pf_state_export *,
969 typedef int pflog_packet_t(struct pfi_kkif *, struct mbuf *, sa_family_t,
970 u_int8_t, u_int8_t, struct pf_krule *, struct pf_krule *,
971 struct pf_kruleset *, struct pf_pdesc *, int);
972 extern pflog_packet_t *pflog_packet_ptr;
976 #define PFSYNC_FLAG_SRCNODE 0x04
977 #define PFSYNC_FLAG_NATSRCNODE 0x08
979 /* for copies to/from network byte order */
980 /* ioctl interface also uses network byte order */
981 #define pf_state_peer_hton(s,d) do { \
982 (d)->seqlo = htonl((s)->seqlo); \
983 (d)->seqhi = htonl((s)->seqhi); \
984 (d)->seqdiff = htonl((s)->seqdiff); \
985 (d)->max_win = htons((s)->max_win); \
986 (d)->mss = htons((s)->mss); \
987 (d)->state = (s)->state; \
988 (d)->wscale = (s)->wscale; \
990 (d)->scrub.pfss_flags = \
991 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
992 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
993 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
994 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
998 #define pf_state_peer_ntoh(s,d) do { \
999 (d)->seqlo = ntohl((s)->seqlo); \
1000 (d)->seqhi = ntohl((s)->seqhi); \
1001 (d)->seqdiff = ntohl((s)->seqdiff); \
1002 (d)->max_win = ntohs((s)->max_win); \
1003 (d)->mss = ntohs((s)->mss); \
1004 (d)->state = (s)->state; \
1005 (d)->wscale = (s)->wscale; \
1006 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
1007 (d)->scrub != NULL) { \
1008 (d)->scrub->pfss_flags = \
1009 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
1010 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
1011 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
1015 #define pf_state_counter_hton(s,d) do { \
1016 d[0] = htonl((s>>32)&0xffffffff); \
1017 d[1] = htonl(s&0xffffffff); \
1020 #define pf_state_counter_from_pfsync(s) \
1021 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
1023 #define pf_state_counter_ntoh(s,d) do { \
1029 TAILQ_HEAD(pf_krulequeue, pf_krule);
1033 struct pf_kruleset {
1035 struct pf_krulequeue queues[2];
1037 struct pf_krulequeue *ptr;
1038 struct pf_krule **ptr_array;
1043 } rules[PF_RULESET_MAX];
1044 struct pf_kanchor *anchor;
1050 RB_HEAD(pf_kanchor_global, pf_kanchor);
1051 RB_HEAD(pf_kanchor_node, pf_kanchor);
1053 RB_ENTRY(pf_kanchor) entry_global;
1054 RB_ENTRY(pf_kanchor) entry_node;
1055 struct pf_kanchor *parent;
1056 struct pf_kanchor_node children;
1057 char name[PF_ANCHOR_NAME_SIZE];
1058 char path[MAXPATHLEN];
1059 struct pf_kruleset ruleset;
1060 int refcnt; /* anchor rules */
1062 RB_PROTOTYPE(pf_kanchor_global, pf_kanchor, entry_global, pf_anchor_compare);
1063 RB_PROTOTYPE(pf_kanchor_node, pf_kanchor, entry_node, pf_kanchor_compare);
1065 #define PF_RESERVED_ANCHOR "_pf"
1067 #define PFR_TFLAG_PERSIST 0x00000001
1068 #define PFR_TFLAG_CONST 0x00000002
1069 #define PFR_TFLAG_ACTIVE 0x00000004
1070 #define PFR_TFLAG_INACTIVE 0x00000008
1071 #define PFR_TFLAG_REFERENCED 0x00000010
1072 #define PFR_TFLAG_REFDANCHOR 0x00000020
1073 #define PFR_TFLAG_COUNTERS 0x00000040
1074 /* Adjust masks below when adding flags. */
1075 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
1078 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
1079 PFR_TFLAG_INACTIVE | \
1080 PFR_TFLAG_REFERENCED | \
1081 PFR_TFLAG_REFDANCHOR)
1082 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
1084 PFR_TFLAG_ACTIVE | \
1085 PFR_TFLAG_INACTIVE | \
1086 PFR_TFLAG_REFERENCED | \
1087 PFR_TFLAG_REFDANCHOR | \
1090 struct pf_kanchor_stackframe;
1093 char pfrt_anchor[MAXPATHLEN];
1094 char pfrt_name[PF_TABLE_NAME_SIZE];
1095 u_int32_t pfrt_flags;
1096 u_int8_t pfrt_fback;
1099 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1100 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1101 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1105 struct in_addr _pfra_ip4addr;
1106 struct in6_addr _pfra_ip6addr;
1111 u_int8_t pfra_fback;
1113 #define pfra_ip4addr pfra_u._pfra_ip4addr
1114 #define pfra_ip6addr pfra_u._pfra_ip6addr
1116 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1117 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1118 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
1119 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
1120 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1123 struct pfr_addr pfras_a;
1124 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1125 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1129 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1132 struct pfr_table pfrts_t;
1133 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1134 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1135 u_int64_t pfrts_match;
1136 u_int64_t pfrts_nomatch;
1139 int pfrts_refcnt[PFR_REFCNT_MAX];
1144 struct pfr_kstate_counter {
1145 counter_u64_t pkc_pcpu;
1150 pfr_kstate_counter_init(struct pfr_kstate_counter *pfrc, int flags)
1154 pfrc->pkc_pcpu = counter_u64_alloc(flags);
1155 if (pfrc->pkc_pcpu == NULL)
1161 pfr_kstate_counter_deinit(struct pfr_kstate_counter *pfrc)
1164 counter_u64_free(pfrc->pkc_pcpu);
1167 static inline u_int64_t
1168 pfr_kstate_counter_fetch(struct pfr_kstate_counter *pfrc)
1172 c = counter_u64_fetch(pfrc->pkc_pcpu);
1173 c -= pfrc->pkc_zero;
1178 pfr_kstate_counter_zero(struct pfr_kstate_counter *pfrc)
1182 c = counter_u64_fetch(pfrc->pkc_pcpu);
1187 pfr_kstate_counter_add(struct pfr_kstate_counter *pfrc, int64_t n)
1190 counter_u64_add(pfrc->pkc_pcpu, n);
1193 struct pfr_ktstats {
1194 struct pfr_table pfrts_t;
1195 struct pfr_kstate_counter pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1196 struct pfr_kstate_counter pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1197 struct pfr_kstate_counter pfrkts_match;
1198 struct pfr_kstate_counter pfrkts_nomatch;
1201 int pfrkts_refcnt[PFR_REFCNT_MAX];
1204 #endif /* _KERNEL */
1206 #define pfrts_name pfrts_t.pfrt_name
1207 #define pfrts_flags pfrts_t.pfrt_flags
1209 #ifndef _SOCKADDR_UNION_DEFINED
1210 #define _SOCKADDR_UNION_DEFINED
1211 union sockaddr_union {
1213 struct sockaddr_in sin;
1214 struct sockaddr_in6 sin6;
1216 #endif /* _SOCKADDR_UNION_DEFINED */
1218 struct pfr_kcounters {
1219 counter_u64_t pfrkc_counters;
1222 #define pfr_kentry_counter(kc, dir, op, t) \
1223 ((kc)->pfrkc_counters + \
1224 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
1227 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1229 struct radix_node pfrke_node[2];
1230 union sockaddr_union pfrke_sa;
1231 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1232 struct pfr_kcounters pfrke_counters;
1236 u_int8_t pfrke_mark;
1239 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1240 RB_HEAD(pfr_ktablehead, pfr_ktable);
1242 struct pfr_ktstats pfrkt_kts;
1243 RB_ENTRY(pfr_ktable) pfrkt_tree;
1244 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1245 struct radix_node_head *pfrkt_ip4;
1246 struct radix_node_head *pfrkt_ip6;
1247 struct pfr_ktable *pfrkt_shadow;
1248 struct pfr_ktable *pfrkt_root;
1249 struct pf_kruleset *pfrkt_rs;
1253 #define pfrkt_t pfrkt_kts.pfrts_t
1254 #define pfrkt_name pfrkt_t.pfrt_name
1255 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1256 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1257 #define pfrkt_flags pfrkt_t.pfrt_flags
1258 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
1259 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
1260 #define pfrkt_packets pfrkt_kts.pfrkts_packets
1261 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
1262 #define pfrkt_match pfrkt_kts.pfrkts_match
1263 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
1264 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
1269 char pfik_name[IFNAMSIZ];
1271 RB_ENTRY(pfi_kkif) _pfik_tree;
1272 LIST_ENTRY(pfi_kkif) _pfik_list;
1274 #define pfik_tree _pfik_glue._pfik_tree
1275 #define pfik_list _pfik_glue._pfik_list
1276 struct pf_counter_u64 pfik_packets[2][2][2];
1277 struct pf_counter_u64 pfik_bytes[2][2][2];
1278 u_int32_t pfik_tzero;
1280 struct ifnet *pfik_ifp;
1281 struct ifg_group *pfik_group;
1282 u_int pfik_rulerefs;
1283 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1284 #ifdef PF_WANT_32_TO_64_COUNTER
1285 LIST_ENTRY(pfi_kkif) pfik_allkiflist;
1290 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1291 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1300 u_int64_t tot_len; /* Make Mickey money */
1306 struct icmp6_hdr icmp6;
1311 struct pf_krule *nat_rule; /* nat/rdr rule applied to packet */
1312 struct pf_addr *src; /* src address */
1313 struct pf_addr *dst; /* dst address */
1316 struct pf_mtag *pf_mtag;
1317 struct pf_rule_actions act;
1319 u_int32_t p_len; /* total length of payload */
1322 u_int16_t *proto_sum;
1323 u_int16_t flags; /* Let SCRUB trigger behavior in
1324 * state code. Easier than tags */
1325 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1326 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1330 u_int8_t dir; /* direction */
1331 u_int8_t sidx; /* key index for source */
1332 u_int8_t didx; /* key index for destination */
1336 /* flags for RDR options */
1337 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1338 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1340 /* UDP state enumeration */
1341 #define PFUDPS_NO_TRAFFIC 0
1342 #define PFUDPS_SINGLE 1
1343 #define PFUDPS_MULTIPLE 2
1345 #define PFUDPS_NSTATES 3 /* number of state levels */
1347 #define PFUDPS_NAMES { \
1354 /* Other protocol state enumeration */
1355 #define PFOTHERS_NO_TRAFFIC 0
1356 #define PFOTHERS_SINGLE 1
1357 #define PFOTHERS_MULTIPLE 2
1359 #define PFOTHERS_NSTATES 3 /* number of state levels */
1361 #define PFOTHERS_NAMES { \
1368 #define ACTION_SET(a, x) \
1374 #define REASON_SET(a, x) \
1378 if (x < PFRES_MAX) \
1379 counter_u64_add(V_pf_status.counters[x], 1); \
1382 enum pf_syncookies_mode {
1383 PF_SYNCOOKIES_NEVER = 0,
1384 PF_SYNCOOKIES_ALWAYS = 1,
1385 PF_SYNCOOKIES_ADAPTIVE = 2,
1386 PF_SYNCOOKIES_MODE_MAX = PF_SYNCOOKIES_ADAPTIVE
1389 #define PF_SYNCOOKIES_HIWATPCT 25
1390 #define PF_SYNCOOKIES_LOWATPCT (PF_SYNCOOKIES_HIWATPCT / 2)
1394 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1395 counter_u64_t lcounters[KLCNT_MAX]; /* limit counters */
1396 struct pf_counter_u64 fcounters[FCNT_MAX]; /* state operation counters */
1397 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1404 char ifname[IFNAMSIZ];
1405 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1407 enum pf_syncookies_mode syncookies_mode;
1408 bool syncookies_active;
1409 uint64_t syncookies_inflight[2];
1410 uint32_t states_halfopen;
1416 struct in_addr ipv4;
1417 struct in6_addr ipv6;
1422 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1423 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1426 * Limit the length of the fragment queue traversal. Remember
1427 * search entry points based on the fragment offset.
1429 #define PF_FRAG_ENTRY_POINTS 16
1432 * The number of entries in the fragment queue must be limited
1433 * to avoid DoS by linear seaching. Instead of a global limit,
1434 * use a limit per entry point. For large packets these sum up.
1436 #define PF_FRAG_ENTRY_LIMIT 64
1439 * ioctl parameter structures
1442 struct pfioc_pooladdr {
1450 char anchor[MAXPATHLEN];
1451 struct pf_pooladdr addr;
1457 u_int32_t pool_ticket;
1459 char anchor[MAXPATHLEN];
1460 char anchor_call[MAXPATHLEN];
1461 struct pf_rule rule;
1464 struct pfioc_natlook {
1465 struct pf_addr saddr;
1466 struct pf_addr daddr;
1467 struct pf_addr rsaddr;
1468 struct pf_addr rdaddr;
1478 struct pfioc_state {
1479 struct pfsync_state state;
1482 struct pfioc_src_node_kill {
1483 sa_family_t psnk_af;
1484 struct pf_rule_addr psnk_src;
1485 struct pf_rule_addr psnk_dst;
1490 struct pf_kstate_kill {
1491 struct pf_state_cmp psk_pfcmp;
1494 struct pf_rule_addr psk_src;
1495 struct pf_rule_addr psk_dst;
1496 struct pf_rule_addr psk_rt_addr;
1497 char psk_ifname[IFNAMSIZ];
1498 char psk_label[PF_RULE_LABEL_SIZE];
1500 bool psk_kill_match;
1504 struct pfioc_state_kill {
1505 struct pf_state_cmp psk_pfcmp;
1508 struct pf_rule_addr psk_src;
1509 struct pf_rule_addr psk_dst;
1510 char psk_ifname[IFNAMSIZ];
1511 char psk_label[PF_RULE_LABEL_SIZE];
1515 struct pfioc_states {
1519 struct pfsync_state *psu_states;
1521 #define ps_buf ps_u.psu_buf
1522 #define ps_states ps_u.psu_states
1525 struct pfioc_states_v2 {
1527 uint64_t ps_req_version;
1530 struct pf_state_export *psu_states;
1532 #define ps_buf ps_u.psu_buf
1533 #define ps_states ps_u.psu_states
1536 struct pfioc_src_nodes {
1540 struct pf_src_node *psu_src_nodes;
1542 #define psn_buf psn_u.psu_buf
1543 #define psn_src_nodes psn_u.psu_src_nodes
1547 char ifname[IFNAMSIZ];
1555 struct pfioc_limit {
1560 struct pfioc_altq_v0 {
1564 struct pf_altq_v0 altq;
1567 struct pfioc_altq_v1 {
1572 * Placed here so code that only uses the above parameters can be
1573 * written entirely in terms of the v0 or v1 type.
1576 struct pf_altq_v1 altq;
1580 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1581 * the latest version of struct pf_altq_vX as it has that struct as a
1584 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1586 struct pfioc_qstats_v0 {
1594 struct pfioc_qstats_v1 {
1601 * Placed here so code that only uses the above parameters can be
1602 * written entirely in terms of the v0 or v1 type.
1604 u_int32_t version; /* Requested version of stats struct */
1607 /* Latest version of struct pfioc_qstats_vX */
1608 #define PFIOC_QSTATS_VERSION 1
1610 struct pfioc_ruleset {
1612 char path[MAXPATHLEN];
1613 char name[PF_ANCHOR_NAME_SIZE];
1616 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1617 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1618 struct pfioc_trans {
1619 int size; /* number of elements */
1620 int esize; /* size of each element in bytes */
1621 struct pfioc_trans_e {
1623 char anchor[MAXPATHLEN];
1628 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1629 #define PFR_FLAG_DUMMY 0x00000002
1630 #define PFR_FLAG_FEEDBACK 0x00000004
1631 #define PFR_FLAG_CLSTATS 0x00000008
1632 #define PFR_FLAG_ADDRSTOO 0x00000010
1633 #define PFR_FLAG_REPLACE 0x00000020
1634 #define PFR_FLAG_ALLRSETS 0x00000040
1635 #define PFR_FLAG_ALLMASK 0x0000007F
1637 #define PFR_FLAG_USERIOCTL 0x10000000
1640 struct pfioc_table {
1641 struct pfr_table pfrio_table;
1650 u_int32_t pfrio_ticket;
1652 #define pfrio_exists pfrio_nadd
1653 #define pfrio_nzero pfrio_nadd
1654 #define pfrio_nmatch pfrio_nadd
1655 #define pfrio_naddr pfrio_size2
1656 #define pfrio_setflag pfrio_size2
1657 #define pfrio_clrflag pfrio_nadd
1659 struct pfioc_iface {
1660 char pfiio_name[IFNAMSIZ];
1672 #define DIOCSTART _IO ('D', 1)
1673 #define DIOCSTOP _IO ('D', 2)
1674 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1675 #define DIOCADDRULENV _IOWR('D', 4, struct pfioc_nv)
1676 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1677 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1678 #define DIOCGETRULENV _IOWR('D', 7, struct pfioc_nv)
1679 /* XXX cut 8 - 17 */
1680 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1681 #define DIOCCLRSTATESNV _IOWR('D', 18, struct pfioc_nv)
1682 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1683 #define DIOCGETSTATENV _IOWR('D', 19, struct pfioc_nv)
1684 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1685 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1686 #define DIOCGETSTATUSNV _IOWR('D', 21, struct pfioc_nv)
1687 #define DIOCCLRSTATUS _IO ('D', 22)
1688 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1689 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1690 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1691 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1692 /* XXX cut 26 - 28 */
1693 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1694 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1695 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1696 #define DIOCCLRRULECTRS _IO ('D', 38)
1697 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1698 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1699 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1700 #define DIOCKILLSTATESNV _IOWR('D', 41, struct pfioc_nv)
1701 #define DIOCSTARTALTQ _IO ('D', 42)
1702 #define DIOCSTOPALTQ _IO ('D', 43)
1703 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1704 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1705 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1706 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1707 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1708 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1709 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1710 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1711 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1712 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1713 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1714 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1715 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1716 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1717 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1718 /* XXX cut 55 - 57 */
1719 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1720 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1721 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1722 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1723 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1724 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1725 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1726 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1727 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1728 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1729 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1730 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1731 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1732 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1733 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1734 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1735 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1736 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1737 #define DIOCOSFPFLUSH _IO('D', 78)
1738 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1739 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1740 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1741 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1742 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1743 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1744 #define DIOCCLRSRCNODES _IO('D', 85)
1745 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1746 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1747 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1748 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1749 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1750 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
1751 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
1752 #define DIOCGETSTATESV2 _IOWR('D', 93, struct pfioc_states_v2)
1753 #define DIOCGETSYNCOOKIES _IOWR('D', 94, struct pfioc_nv)
1754 #define DIOCSETSYNCOOKIES _IOWR('D', 95, struct pfioc_nv)
1755 #define DIOCKEEPCOUNTERS _IOWR('D', 96, struct pfioc_nv)
1756 #define DIOCKEEPCOUNTERS_FREEBSD13 _IOWR('D', 92, struct pfioc_nv)
1758 struct pf_ifspeed_v0 {
1759 char ifname[IFNAMSIZ];
1763 struct pf_ifspeed_v1 {
1764 char ifname[IFNAMSIZ];
1765 u_int32_t baudrate32;
1766 /* layout identical to struct pf_ifspeed_v0 up to this point */
1770 /* Latest version of struct pf_ifspeed_vX */
1771 #define PF_IFSPEED_VERSION 1
1774 * Compatibility and convenience macros
1777 #ifdef PFIOC_USE_LATEST
1779 * Maintaining in-tree consumers of the ioctl interface is easier when that
1780 * code can be written in terms old names that refer to the latest interface
1781 * version as that reduces the required changes in the consumers to those
1782 * that are functionally necessary to accommodate a new interface version.
1784 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
1785 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
1786 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
1788 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
1789 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
1790 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
1791 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
1792 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
1793 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
1796 * When building out-of-tree code that is written for the old interface,
1797 * such as may exist in ports for example, resolve the old struct tags and
1798 * ioctl command names to the v0 versions.
1800 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
1801 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
1802 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
1804 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
1805 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
1806 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
1807 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
1808 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
1809 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
1810 #endif /* PFIOC_USE_LATEST */
1811 #endif /* _KERNEL */
1814 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node);
1816 struct pf_ksrc_node_list nodes;
1821 LIST_HEAD(, pf_state_key) keys;
1826 LIST_HEAD(, pf_kstate) states;
1830 extern u_long pf_ioctl_maxcount;
1831 extern u_long pf_hashmask;
1832 extern u_long pf_srchashmask;
1833 #define PF_HASHSIZ (131072)
1834 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1835 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1836 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1837 #define V_pf_keyhash VNET(pf_keyhash)
1838 #define V_pf_idhash VNET(pf_idhash)
1839 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1840 #define V_pf_srchash VNET(pf_srchash)
1842 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1844 VNET_DECLARE(void *, pf_swi_cookie);
1845 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1846 VNET_DECLARE(struct intr_event *, pf_swi_ie);
1847 #define V_pf_swi_ie VNET(pf_swi_ie)
1849 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1850 #define V_pf_stateid VNET(pf_stateid)
1852 TAILQ_HEAD(pf_altqqueue, pf_altq);
1853 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
1854 #define V_pf_altqs VNET(pf_altqs)
1855 VNET_DECLARE(struct pf_kpalist, pf_pabuf);
1856 #define V_pf_pabuf VNET(pf_pabuf)
1858 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1859 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1860 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1861 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1862 VNET_DECLARE(int, altqs_inactive_open);
1863 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1864 VNET_DECLARE(u_int32_t, ticket_pabuf);
1865 #define V_ticket_pabuf VNET(ticket_pabuf)
1866 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1867 #define V_pf_altqs_active VNET(pf_altqs_active)
1868 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
1869 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
1870 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1871 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1872 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
1873 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
1875 VNET_DECLARE(struct pf_krulequeue, pf_unlinked_rules);
1876 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1878 #ifdef PF_WANT_32_TO_64_COUNTER
1879 LIST_HEAD(allkiflist_head, pfi_kkif);
1880 VNET_DECLARE(struct allkiflist_head, pf_allkiflist);
1881 #define V_pf_allkiflist VNET(pf_allkiflist)
1882 VNET_DECLARE(size_t, pf_allkifcount);
1883 #define V_pf_allkifcount VNET(pf_allkifcount)
1884 VNET_DECLARE(struct pfi_kkif *, pf_kifmarker);
1885 #define V_pf_kifmarker VNET(pf_kifmarker)
1887 LIST_HEAD(allrulelist_head, pf_krule);
1888 VNET_DECLARE(struct allrulelist_head, pf_allrulelist);
1889 #define V_pf_allrulelist VNET(pf_allrulelist)
1890 VNET_DECLARE(size_t, pf_allrulecount);
1891 #define V_pf_allrulecount VNET(pf_allrulecount)
1892 VNET_DECLARE(struct pf_krule *, pf_rulemarker);
1893 #define V_pf_rulemarker VNET(pf_rulemarker)
1896 void pf_initialize(void);
1897 void pf_mtag_initialize(void);
1898 void pf_mtag_cleanup(void);
1899 void pf_cleanup(void);
1901 struct pf_mtag *pf_get_mtag(struct mbuf *);
1903 extern void pf_calc_skip_steps(struct pf_krulequeue *);
1905 extern void pf_altq_ifnet_event(struct ifnet *, int);
1907 VNET_DECLARE(uma_zone_t, pf_state_z);
1908 #define V_pf_state_z VNET(pf_state_z)
1909 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1910 #define V_pf_state_key_z VNET(pf_state_key_z)
1911 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1912 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1914 extern void pf_purge_thread(void *);
1915 extern void pf_unload_vnet_purge(void);
1916 extern void pf_intr(void *);
1917 extern void pf_purge_expired_src_nodes(void);
1919 extern int pf_unlink_state(struct pf_kstate *);
1920 extern int pf_state_insert(struct pfi_kkif *,
1922 struct pf_state_key *,
1923 struct pf_state_key *,
1924 struct pf_kstate *);
1925 extern struct pf_kstate *pf_alloc_state(int);
1926 extern void pf_free_state(struct pf_kstate *);
1928 static __inline void
1929 pf_ref_state(struct pf_kstate *s)
1932 refcount_acquire(&s->refs);
1936 pf_release_state(struct pf_kstate *s)
1939 if (refcount_release(&s->refs)) {
1947 pf_release_staten(struct pf_kstate *s, u_int n)
1950 if (refcount_releasen(&s->refs, n)) {
1957 extern struct pf_kstate *pf_find_state_byid(uint64_t, uint32_t);
1958 extern struct pf_kstate *pf_find_state_all(struct pf_state_key_cmp *,
1960 extern bool pf_find_state_all_exists(struct pf_state_key_cmp *,
1962 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *,
1963 struct pf_krule *, sa_family_t, int);
1964 extern void pf_unlink_src_node(struct pf_ksrc_node *);
1965 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *);
1966 extern void pf_print_state(struct pf_kstate *);
1967 extern void pf_print_flags(u_int8_t);
1968 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1970 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1971 u_int16_t, u_int16_t, u_int8_t);
1973 VNET_DECLARE(struct ifnet *, sync_ifp);
1974 #define V_sync_ifp VNET(sync_ifp);
1975 VNET_DECLARE(struct pf_krule, pf_default_rule);
1976 #define V_pf_default_rule VNET(pf_default_rule)
1977 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1979 void pf_free_rule(struct pf_krule *);
1982 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1983 int pf_normalize_ip(struct mbuf **, int, struct pfi_kkif *, u_short *,
1988 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1989 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kkif *, u_short *,
1991 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1992 struct pf_addr *, struct pf_addr *, u_int8_t);
1993 void pf_addr_inc(struct pf_addr *, sa_family_t);
1994 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1997 u_int32_t pf_new_isn(struct pf_kstate *);
1998 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
2000 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
2001 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
2003 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
2004 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t,
2006 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t,
2008 void pf_send_deferred_syn(struct pf_kstate *);
2009 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
2010 struct pf_addr *, sa_family_t);
2011 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
2012 struct pf_addr *, sa_family_t);
2013 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
2015 void pf_normalize_init(void);
2016 void pf_normalize_cleanup(void);
2017 int pf_normalize_tcp(int, struct pfi_kkif *, struct mbuf *, int, int, void *,
2019 void pf_normalize_tcp_cleanup(struct pf_kstate *);
2020 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
2021 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
2022 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
2023 u_short *, struct tcphdr *, struct pf_kstate *,
2024 struct pf_state_peer *, struct pf_state_peer *, int *);
2026 pf_state_expires(const struct pf_kstate *);
2027 void pf_purge_expired_fragments(void);
2028 void pf_purge_fragments(uint32_t);
2029 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kkif *,
2031 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
2032 struct pf_state_key *pf_alloc_state_key(int);
2033 void pfr_initialize(void);
2034 void pfr_cleanup(void);
2035 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
2036 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
2037 u_int64_t, int, int, int);
2038 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
2039 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
2041 pfr_attach_table(struct pf_kruleset *, char *);
2042 void pfr_detach_table(struct pfr_ktable *);
2043 int pfr_clr_tables(struct pfr_table *, int *, int);
2044 int pfr_add_tables(struct pfr_table *, int, int *, int);
2045 int pfr_del_tables(struct pfr_table *, int, int *, int);
2046 int pfr_table_count(struct pfr_table *, int);
2047 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
2048 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
2049 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
2050 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
2051 int pfr_clr_addrs(struct pfr_table *, int *, int);
2052 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
2053 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2055 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2057 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2058 int *, int *, int *, int, u_int32_t);
2059 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
2060 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
2061 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
2063 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
2065 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
2066 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
2067 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
2068 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
2069 int *, u_int32_t, int);
2071 MALLOC_DECLARE(PFI_MTYPE);
2072 VNET_DECLARE(struct pfi_kkif *, pfi_all);
2073 #define V_pfi_all VNET(pfi_all)
2075 void pfi_initialize(void);
2076 void pfi_initialize_vnet(void);
2077 void pfi_cleanup(void);
2078 void pfi_cleanup_vnet(void);
2079 void pfi_kkif_ref(struct pfi_kkif *);
2080 void pfi_kkif_unref(struct pfi_kkif *);
2081 struct pfi_kkif *pfi_kkif_find(const char *);
2082 struct pfi_kkif *pfi_kkif_attach(struct pfi_kkif *, const char *);
2083 int pfi_kkif_match(struct pfi_kkif *, struct pfi_kkif *);
2084 void pfi_kkif_purge(void);
2085 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
2087 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
2088 void pfi_dynaddr_remove(struct pfi_dynaddr *);
2089 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
2090 void pfi_update_status(const char *, struct pf_status *);
2091 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
2092 int pfi_set_flags(const char *, int);
2093 int pfi_clear_flags(const char *, int);
2095 int pf_match_tag(struct mbuf *, struct pf_krule *, int *, int);
2096 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
2097 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
2100 u_int16_t pf_get_mss(struct mbuf *, int, u_int16_t, sa_family_t);
2101 u_int8_t pf_get_wscale(struct mbuf *, int, u_int16_t, sa_family_t);
2102 struct mbuf *pf_build_tcp(const struct pf_krule *, sa_family_t,
2103 const struct pf_addr *, const struct pf_addr *,
2104 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2105 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int,
2107 void pf_send_tcp(const struct pf_krule *, sa_family_t,
2108 const struct pf_addr *, const struct pf_addr *,
2109 u_int16_t, u_int16_t, u_int32_t, u_int32_t,
2110 u_int8_t, u_int16_t, u_int16_t, u_int8_t, int,
2113 void pf_syncookies_init(void);
2114 void pf_syncookies_cleanup(void);
2115 int pf_get_syncookies(struct pfioc_nv *);
2116 int pf_set_syncookies(struct pfioc_nv *);
2117 int pf_synflood_check(struct pf_pdesc *);
2118 void pf_syncookie_send(struct mbuf *m, int off,
2120 u_int8_t pf_syncookie_validate(struct pf_pdesc *);
2121 struct mbuf * pf_syncookie_recreate_syn(uint8_t, int,
2124 VNET_DECLARE(struct pf_kstatus, pf_status);
2125 #define V_pf_status VNET(pf_status)
2131 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
2132 #define V_pf_limits VNET(pf_limits)
2134 #endif /* _KERNEL */
2137 VNET_DECLARE(struct pf_kanchor_global, pf_anchors);
2138 #define V_pf_anchors VNET(pf_anchors)
2139 VNET_DECLARE(struct pf_kanchor, pf_main_anchor);
2140 #define V_pf_main_anchor VNET(pf_main_anchor)
2141 #define pf_main_ruleset V_pf_main_anchor.ruleset
2143 void pf_init_kruleset(struct pf_kruleset *);
2144 int pf_kanchor_setup(struct pf_krule *,
2145 const struct pf_kruleset *, const char *);
2146 int pf_kanchor_nvcopyout(const struct pf_kruleset *,
2147 const struct pf_krule *, nvlist_t *);
2148 int pf_kanchor_copyout(const struct pf_kruleset *,
2149 const struct pf_krule *, struct pfioc_rule *);
2150 void pf_kanchor_remove(struct pf_krule *);
2151 void pf_remove_if_empty_kruleset(struct pf_kruleset *);
2152 struct pf_kruleset *pf_find_kruleset(const char *);
2153 struct pf_kruleset *pf_find_or_create_kruleset(const char *);
2154 void pf_rs_initialize(void);
2156 void pf_krule_free(struct pf_krule *);
2159 /* The fingerprint functions can be linked into userland programs (tcpdump) */
2160 int pf_osfp_add(struct pf_osfp_ioctl *);
2162 struct pf_osfp_enlist *
2163 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
2164 const struct tcphdr *);
2165 #endif /* _KERNEL */
2166 void pf_osfp_flush(void);
2167 int pf_osfp_get(struct pf_osfp_ioctl *);
2168 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
2171 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
2173 void pf_step_into_anchor(struct pf_kanchor_stackframe *, int *,
2174 struct pf_kruleset **, int, struct pf_krule **,
2175 struct pf_krule **, int *);
2176 int pf_step_out_of_anchor(struct pf_kanchor_stackframe *, int *,
2177 struct pf_kruleset **, int, struct pf_krule **,
2178 struct pf_krule **, int *);
2180 int pf_map_addr(u_int8_t, struct pf_krule *,
2181 struct pf_addr *, struct pf_addr *,
2182 struct pf_addr *, struct pf_ksrc_node **);
2183 struct pf_krule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
2184 int, int, struct pfi_kkif *, struct pf_ksrc_node **,
2185 struct pf_state_key **, struct pf_state_key **,
2186 struct pf_addr *, struct pf_addr *,
2187 uint16_t, uint16_t, struct pf_kanchor_stackframe *);
2189 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
2190 struct pf_addr *, u_int16_t, u_int16_t);
2191 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
2193 struct pfi_kkif *pf_kkif_create(int);
2194 void pf_kkif_free(struct pfi_kkif *);
2195 void pf_kkif_zero(struct pfi_kkif *);
2196 #endif /* _KERNEL */
2198 #endif /* _NET_PFVAR_H_ */