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>
43 #include <sys/refcount.h>
44 #include <sys/sysctl.h>
46 #include <sys/rmlock.h>
50 #include <net/radix.h>
51 #include <netinet/in.h>
53 #include <netpfil/pf/pf.h>
54 #include <netpfil/pf/pf_altq.h>
55 #include <netpfil/pf/pf_mtag.h>
60 MALLOC_DECLARE(M_PFHASH);
63 TAILQ_ENTRY(pfi_dynaddr) entry;
64 struct pf_addr pfid_addr4;
65 struct pf_addr pfid_mask4;
66 struct pf_addr pfid_addr6;
67 struct pf_addr pfid_mask6;
68 struct pfr_ktable *pfid_kt;
69 struct pfi_kif *pfid_kif;
70 int pfid_net; /* mask or 128 */
71 int pfid_acnt4; /* address count IPv4 */
72 int pfid_acnt6; /* address count IPv6 */
73 sa_family_t pfid_af; /* rule af */
74 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
78 * Address manipulation macros
80 #define HTONL(x) (x) = htonl((__uint32_t)(x))
81 #define HTONS(x) (x) = htons((__uint16_t)(x))
82 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
83 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
87 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
88 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
89 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
91 #define PF_STATE_LOCK(s) \
93 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
94 PF_HASHROW_LOCK(_ih); \
97 #define PF_STATE_UNLOCK(s) \
99 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
100 PF_HASHROW_UNLOCK(_ih); \
104 #define PF_STATE_LOCK_ASSERT(s) \
106 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
107 PF_HASHROW_ASSERT(_ih); \
109 #else /* !INVARIANTS */
110 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
111 #endif /* INVARIANTS */
113 extern struct mtx pf_unlnkdrules_mtx;
114 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
115 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
117 extern struct rmlock pf_rules_lock;
118 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
119 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
120 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
121 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
122 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
123 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
124 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
125 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
127 extern struct sx pf_end_lock;
130 #define PFLOG_MODVER 1
131 #define PFSYNC_MODVER 1
133 #define PFLOG_MINVER 1
134 #define PFLOG_PREFVER PFLOG_MODVER
135 #define PFLOG_MAXVER 1
136 #define PFSYNC_MINVER 1
137 #define PFSYNC_PREFVER PFSYNC_MODVER
138 #define PFSYNC_MAXVER 1
148 #define PF_INET6_ONLY
154 #define PF_INET_INET6
160 #define PF_INET_INET6
164 /* Both IPv4 and IPv6 */
167 #define PF_AEQ(a, b, c) \
168 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
169 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
170 (a)->addr32[2] == (b)->addr32[2] && \
171 (a)->addr32[1] == (b)->addr32[1] && \
172 (a)->addr32[0] == (b)->addr32[0])) \
174 #define PF_ANEQ(a, b, c) \
175 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
176 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
177 (a)->addr32[1] != (b)->addr32[1] || \
178 (a)->addr32[2] != (b)->addr32[2] || \
179 (a)->addr32[3] != (b)->addr32[3]))) \
181 #define PF_AZERO(a, c) \
182 ((c == AF_INET && !(a)->addr32[0]) || \
183 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
184 !(a)->addr32[2] && !(a)->addr32[3] )) \
186 #define PF_MATCHA(n, a, m, b, f) \
187 pf_match_addr(n, a, m, b, f)
189 #define PF_ACPY(a, b, f) \
192 #define PF_AINC(a, f) \
195 #define PF_POOLMASK(a, b, c, d, f) \
196 pf_poolmask(a, b, c, d, f)
204 #define PF_AEQ(a, b, c) \
205 ((a)->addr32[3] == (b)->addr32[3] && \
206 (a)->addr32[2] == (b)->addr32[2] && \
207 (a)->addr32[1] == (b)->addr32[1] && \
208 (a)->addr32[0] == (b)->addr32[0]) \
210 #define PF_ANEQ(a, b, c) \
211 ((a)->addr32[3] != (b)->addr32[3] || \
212 (a)->addr32[2] != (b)->addr32[2] || \
213 (a)->addr32[1] != (b)->addr32[1] || \
214 (a)->addr32[0] != (b)->addr32[0]) \
216 #define PF_AZERO(a, c) \
217 (!(a)->addr32[0] && \
222 #define PF_MATCHA(n, a, m, b, f) \
223 pf_match_addr(n, a, m, b, f)
225 #define PF_ACPY(a, b, f) \
228 #define PF_AINC(a, f) \
231 #define PF_POOLMASK(a, b, c, d, f) \
232 pf_poolmask(a, b, c, d, f)
239 #define PF_AEQ(a, b, c) \
240 ((a)->addr32[0] == (b)->addr32[0])
242 #define PF_ANEQ(a, b, c) \
243 ((a)->addr32[0] != (b)->addr32[0])
245 #define PF_AZERO(a, c) \
248 #define PF_MATCHA(n, a, m, b, f) \
249 pf_match_addr(n, a, m, b, f)
251 #define PF_ACPY(a, b, f) \
252 (a)->v4.s_addr = (b)->v4.s_addr
254 #define PF_AINC(a, f) \
256 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
259 #define PF_POOLMASK(a, b, c, d, f) \
261 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
262 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
265 #endif /* PF_INET_ONLY */
266 #endif /* PF_INET6_ONLY */
267 #endif /* PF_INET_INET6 */
270 * XXX callers not FIB-aware in our version of pf yet.
271 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
273 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
275 (((aw)->type == PF_ADDR_NOROUTE && \
276 pf_routable((x), (af), NULL, (rtid))) || \
277 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
278 pf_routable((x), (af), (ifp), (rtid))) || \
279 ((aw)->type == PF_ADDR_TABLE && \
280 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
281 ((aw)->type == PF_ADDR_DYNIFTL && \
282 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
283 ((aw)->type == PF_ADDR_RANGE && \
284 !pf_match_addr_range(&(aw)->v.a.addr, \
285 &(aw)->v.a.mask, (x), (af))) || \
286 ((aw)->type == PF_ADDR_ADDRMASK && \
287 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
288 !PF_MATCHA(0, &(aw)->v.a.addr, \
289 &(aw)->v.a.mask, (x), (af))))) != \
293 #define PF_ALGNMNT(off) (((off) % 2) == 0)
296 struct pf_ksrc_node {
297 LIST_ENTRY(pf_ksrc_node) entry;
299 struct pf_addr raddr;
300 union pf_rule_ptr rule;
302 counter_u64_t bytes[2];
303 counter_u64_t packets[2];
306 struct pf_threshold conn_rate;
314 struct pf_state_scrub {
315 struct timeval pfss_last; /* time received last packet */
316 u_int32_t pfss_tsecr; /* last echoed timestamp */
317 u_int32_t pfss_tsval; /* largest timestamp */
318 u_int32_t pfss_tsval0; /* original timestamp */
319 u_int16_t pfss_flags;
320 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
321 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
322 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
323 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
324 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
325 u_int8_t pfss_ttl; /* stashed TTL */
327 u_int32_t pfss_ts_mod; /* timestamp modulation */
330 struct pf_state_host {
336 struct pf_state_peer {
337 struct pf_state_scrub *scrub; /* state is scrubbed */
338 u_int32_t seqlo; /* Max sequence number sent */
339 u_int32_t seqhi; /* Max the other end ACKd + win */
340 u_int32_t seqdiff; /* Sequence number modulator */
341 u_int16_t max_win; /* largest window (pre scaling) */
342 u_int16_t mss; /* Maximum segment size option */
343 u_int8_t state; /* active state level */
344 u_int8_t wscale; /* window scaling factor */
345 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
349 /* Keep synced with struct pf_state_key. */
350 struct pf_state_key_cmp {
351 struct pf_addr addr[2];
358 struct pf_state_key {
359 struct pf_addr addr[2];
365 LIST_ENTRY(pf_state_key) entry;
366 TAILQ_HEAD(, pf_state) states[2];
369 /* Keep synced with struct pf_state. */
370 struct pf_state_cmp {
384 TAILQ_ENTRY(pf_state) sync_list;
385 TAILQ_ENTRY(pf_state) key_list[2];
386 LIST_ENTRY(pf_state) entry;
387 struct pf_state_peer src;
388 struct pf_state_peer dst;
389 union pf_rule_ptr rule;
390 union pf_rule_ptr anchor;
391 union pf_rule_ptr nat_rule;
392 struct pf_addr rt_addr;
393 struct pf_state_key *key[2]; /* addresses stack and wire */
395 struct pfi_kif *rt_kif;
396 struct pf_ksrc_node *src_node;
397 struct pf_ksrc_node *nat_src_node;
398 counter_u64_t packets[2];
399 counter_u64_t bytes[2];
402 u_int32_t pfsync_time;
405 u_int8_t state_flags;
406 #define PFSTATE_ALLOWOPTS 0x01
407 #define PFSTATE_SLOPPY 0x02
408 /* was PFSTATE_PFLOW 0x04 */
409 #define PFSTATE_NOSYNC 0x08
410 #define PFSTATE_ACK 0x10
411 #define PFSTATE_SETPRIO 0x0200
412 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
414 u_int8_t sync_state; /* PFSYNC_S_x */
417 u_int8_t sync_updates;
422 * Unified state structures for pulling states out of the kernel
423 * used by pfsync(4) and the pf(4) ioctl.
425 struct pfsync_state_scrub {
426 u_int16_t pfss_flags;
427 u_int8_t pfss_ttl; /* stashed TTL */
428 #define PFSYNC_SCRUB_FLAG_VALID 0x01
430 u_int32_t pfss_ts_mod; /* timestamp modulation */
433 struct pfsync_state_peer {
434 struct pfsync_state_scrub scrub; /* state is scrubbed */
435 u_int32_t seqlo; /* Max sequence number sent */
436 u_int32_t seqhi; /* Max the other end ACKd + win */
437 u_int32_t seqdiff; /* Sequence number modulator */
438 u_int16_t max_win; /* largest window (pre scaling) */
439 u_int16_t mss; /* Maximum segment size option */
440 u_int8_t state; /* active state level */
441 u_int8_t wscale; /* window scaling factor */
445 struct pfsync_state_key {
446 struct pf_addr addr[2];
450 struct pfsync_state {
452 char ifname[IFNAMSIZ];
453 struct pfsync_state_key key[2];
454 struct pfsync_state_peer src;
455 struct pfsync_state_peer dst;
456 struct pf_addr rt_addr;
462 u_int32_t packets[2][2];
463 u_int32_t bytes[2][2];
470 u_int8_t state_flags;
478 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
479 typedef void pfsync_insert_state_t(struct pf_state *);
480 typedef void pfsync_update_state_t(struct pf_state *);
481 typedef void pfsync_delete_state_t(struct pf_state *);
482 typedef void pfsync_clear_states_t(u_int32_t, const char *);
483 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
484 typedef void pfsync_detach_ifnet_t(struct ifnet *);
486 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
487 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
488 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
489 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
490 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
491 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
492 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
493 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
494 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
495 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
496 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
497 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
498 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
500 void pfsync_state_export(struct pfsync_state *,
506 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
507 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
508 struct pf_ruleset *, struct pf_pdesc *, int);
509 extern pflog_packet_t *pflog_packet_ptr;
513 #define PFSYNC_FLAG_SRCNODE 0x04
514 #define PFSYNC_FLAG_NATSRCNODE 0x08
516 /* for copies to/from network byte order */
517 /* ioctl interface also uses network byte order */
518 #define pf_state_peer_hton(s,d) do { \
519 (d)->seqlo = htonl((s)->seqlo); \
520 (d)->seqhi = htonl((s)->seqhi); \
521 (d)->seqdiff = htonl((s)->seqdiff); \
522 (d)->max_win = htons((s)->max_win); \
523 (d)->mss = htons((s)->mss); \
524 (d)->state = (s)->state; \
525 (d)->wscale = (s)->wscale; \
527 (d)->scrub.pfss_flags = \
528 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
529 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
530 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
531 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
535 #define pf_state_peer_ntoh(s,d) do { \
536 (d)->seqlo = ntohl((s)->seqlo); \
537 (d)->seqhi = ntohl((s)->seqhi); \
538 (d)->seqdiff = ntohl((s)->seqdiff); \
539 (d)->max_win = ntohs((s)->max_win); \
540 (d)->mss = ntohs((s)->mss); \
541 (d)->state = (s)->state; \
542 (d)->wscale = (s)->wscale; \
543 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
544 (d)->scrub != NULL) { \
545 (d)->scrub->pfss_flags = \
546 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
547 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
548 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
552 #define pf_state_counter_hton(s,d) do { \
553 d[0] = htonl((s>>32)&0xffffffff); \
554 d[1] = htonl(s&0xffffffff); \
557 #define pf_state_counter_from_pfsync(s) \
558 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
560 #define pf_state_counter_ntoh(s,d) do { \
566 TAILQ_HEAD(pf_rulequeue, pf_rule);
572 struct pf_rulequeue queues[2];
574 struct pf_rulequeue *ptr;
575 struct pf_rule **ptr_array;
580 } rules[PF_RULESET_MAX];
581 struct pf_anchor *anchor;
587 RB_HEAD(pf_anchor_global, pf_anchor);
588 RB_HEAD(pf_anchor_node, pf_anchor);
590 RB_ENTRY(pf_anchor) entry_global;
591 RB_ENTRY(pf_anchor) entry_node;
592 struct pf_anchor *parent;
593 struct pf_anchor_node children;
594 char name[PF_ANCHOR_NAME_SIZE];
595 char path[MAXPATHLEN];
596 struct pf_ruleset ruleset;
597 int refcnt; /* anchor rules */
598 int match; /* XXX: used for pfctl black magic */
600 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
601 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
603 #define PF_RESERVED_ANCHOR "_pf"
605 #define PFR_TFLAG_PERSIST 0x00000001
606 #define PFR_TFLAG_CONST 0x00000002
607 #define PFR_TFLAG_ACTIVE 0x00000004
608 #define PFR_TFLAG_INACTIVE 0x00000008
609 #define PFR_TFLAG_REFERENCED 0x00000010
610 #define PFR_TFLAG_REFDANCHOR 0x00000020
611 #define PFR_TFLAG_COUNTERS 0x00000040
612 /* Adjust masks below when adding flags. */
613 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
616 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
617 PFR_TFLAG_INACTIVE | \
618 PFR_TFLAG_REFERENCED | \
619 PFR_TFLAG_REFDANCHOR)
620 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
623 PFR_TFLAG_INACTIVE | \
624 PFR_TFLAG_REFERENCED | \
625 PFR_TFLAG_REFDANCHOR | \
628 struct pf_anchor_stackframe;
631 char pfrt_anchor[MAXPATHLEN];
632 char pfrt_name[PF_TABLE_NAME_SIZE];
633 u_int32_t pfrt_flags;
637 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
638 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
639 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
643 struct in_addr _pfra_ip4addr;
644 struct in6_addr _pfra_ip6addr;
651 #define pfra_ip4addr pfra_u._pfra_ip4addr
652 #define pfra_ip6addr pfra_u._pfra_ip6addr
654 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
655 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
656 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
657 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
658 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
661 struct pfr_addr pfras_a;
662 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
663 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
667 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
670 struct pfr_table pfrts_t;
671 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
672 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
673 u_int64_t pfrts_match;
674 u_int64_t pfrts_nomatch;
677 int pfrts_refcnt[PFR_REFCNT_MAX];
681 struct pfr_table pfrts_t;
682 counter_u64_t pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
683 counter_u64_t pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
684 counter_u64_t pfrkts_match;
685 counter_u64_t pfrkts_nomatch;
688 int pfrkts_refcnt[PFR_REFCNT_MAX];
690 #define pfrts_name pfrts_t.pfrt_name
691 #define pfrts_flags pfrts_t.pfrt_flags
693 #ifndef _SOCKADDR_UNION_DEFINED
694 #define _SOCKADDR_UNION_DEFINED
695 union sockaddr_union {
697 struct sockaddr_in sin;
698 struct sockaddr_in6 sin6;
700 #endif /* _SOCKADDR_UNION_DEFINED */
702 struct pfr_kcounters {
703 counter_u64_t pfrkc_counters;
706 #define pfr_kentry_counter(kc, dir, op, t) \
707 ((kc)->pfrkc_counters + \
708 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
710 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
712 struct radix_node pfrke_node[2];
713 union sockaddr_union pfrke_sa;
714 SLIST_ENTRY(pfr_kentry) pfrke_workq;
715 struct pfr_kcounters pfrke_counters;
722 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
723 RB_HEAD(pfr_ktablehead, pfr_ktable);
725 struct pfr_ktstats pfrkt_kts;
726 RB_ENTRY(pfr_ktable) pfrkt_tree;
727 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
728 struct radix_node_head *pfrkt_ip4;
729 struct radix_node_head *pfrkt_ip6;
730 struct pfr_ktable *pfrkt_shadow;
731 struct pfr_ktable *pfrkt_root;
732 struct pf_ruleset *pfrkt_rs;
736 #define pfrkt_t pfrkt_kts.pfrts_t
737 #define pfrkt_name pfrkt_t.pfrt_name
738 #define pfrkt_anchor pfrkt_t.pfrt_anchor
739 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
740 #define pfrkt_flags pfrkt_t.pfrt_flags
741 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
742 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
743 #define pfrkt_packets pfrkt_kts.pfrkts_packets
744 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
745 #define pfrkt_match pfrkt_kts.pfrkts_match
746 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
747 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
749 /* keep synced with pfi_kif, used in RB_FIND */
751 char pfik_name[IFNAMSIZ];
755 char pfik_name[IFNAMSIZ];
757 RB_ENTRY(pfi_kif) _pfik_tree;
758 LIST_ENTRY(pfi_kif) _pfik_list;
760 #define pfik_tree _pfik_glue._pfik_tree
761 #define pfik_list _pfik_glue._pfik_list
762 u_int64_t pfik_packets[2][2][2];
763 u_int64_t pfik_bytes[2][2][2];
764 u_int32_t pfik_tzero;
766 struct ifnet *pfik_ifp;
767 struct ifg_group *pfik_group;
769 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
772 #define PFI_IFLAG_REFS 0x0001 /* has state references */
773 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
781 u_int64_t tot_len; /* Make Mickey money */
787 struct icmp6_hdr *icmp6;
792 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
793 struct pf_addr *src; /* src address */
794 struct pf_addr *dst; /* dst address */
797 struct pf_mtag *pf_mtag;
799 u_int32_t p_len; /* total length of payload */
802 u_int16_t *proto_sum;
803 u_int16_t flags; /* Let SCRUB trigger behavior in
804 * state code. Easier than tags */
805 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
806 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
810 u_int8_t dir; /* direction */
811 u_int8_t sidx; /* key index for source */
812 u_int8_t didx; /* key index for destination */
815 /* flags for RDR options */
816 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
817 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
819 /* UDP state enumeration */
820 #define PFUDPS_NO_TRAFFIC 0
821 #define PFUDPS_SINGLE 1
822 #define PFUDPS_MULTIPLE 2
824 #define PFUDPS_NSTATES 3 /* number of state levels */
826 #define PFUDPS_NAMES { \
833 /* Other protocol state enumeration */
834 #define PFOTHERS_NO_TRAFFIC 0
835 #define PFOTHERS_SINGLE 1
836 #define PFOTHERS_MULTIPLE 2
838 #define PFOTHERS_NSTATES 3 /* number of state levels */
840 #define PFOTHERS_NAMES { \
847 #define ACTION_SET(a, x) \
853 #define REASON_SET(a, x) \
858 counter_u64_add(V_pf_status.counters[x], 1); \
862 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
863 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */
864 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */
865 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
872 char ifname[IFNAMSIZ];
873 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
879 struct in6_addr ipv6;
884 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
885 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
888 * Limit the length of the fragment queue traversal. Remember
889 * search entry points based on the fragment offset.
891 #define PF_FRAG_ENTRY_POINTS 16
894 * The number of entries in the fragment queue must be limited
895 * to avoid DoS by linear seaching. Instead of a global limit,
896 * use a limit per entry point. For large packets these sum up.
898 #define PF_FRAG_ENTRY_LIMIT 64
901 * ioctl parameter structures
904 struct pfioc_pooladdr {
912 char anchor[MAXPATHLEN];
913 struct pf_pooladdr addr;
919 u_int32_t pool_ticket;
921 char anchor[MAXPATHLEN];
922 char anchor_call[MAXPATHLEN];
926 struct pfioc_natlook {
927 struct pf_addr saddr;
928 struct pf_addr daddr;
929 struct pf_addr rsaddr;
930 struct pf_addr rdaddr;
941 struct pfsync_state state;
944 struct pfioc_src_node_kill {
946 struct pf_rule_addr psnk_src;
947 struct pf_rule_addr psnk_dst;
951 struct pfioc_state_kill {
952 struct pf_state_cmp psk_pfcmp;
955 struct pf_rule_addr psk_src;
956 struct pf_rule_addr psk_dst;
957 char psk_ifname[IFNAMSIZ];
958 char psk_label[PF_RULE_LABEL_SIZE];
962 struct pfioc_states {
966 struct pfsync_state *psu_states;
968 #define ps_buf ps_u.psu_buf
969 #define ps_states ps_u.psu_states
972 struct pfioc_src_nodes {
976 struct pf_src_node *psu_src_nodes;
978 #define psn_buf psn_u.psu_buf
979 #define psn_src_nodes psn_u.psu_src_nodes
983 char ifname[IFNAMSIZ];
996 struct pfioc_altq_v0 {
1000 struct pf_altq_v0 altq;
1003 struct pfioc_altq_v1 {
1008 * Placed here so code that only uses the above parameters can be
1009 * written entirely in terms of the v0 or v1 type.
1012 struct pf_altq_v1 altq;
1016 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1017 * the latest version of struct pf_altq_vX as it has that struct as a
1020 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1022 struct pfioc_qstats_v0 {
1030 struct pfioc_qstats_v1 {
1037 * Placed here so code that only uses the above parameters can be
1038 * written entirely in terms of the v0 or v1 type.
1040 u_int32_t version; /* Requested version of stats struct */
1043 /* Latest version of struct pfioc_qstats_vX */
1044 #define PFIOC_QSTATS_VERSION 1
1046 struct pfioc_ruleset {
1048 char path[MAXPATHLEN];
1049 char name[PF_ANCHOR_NAME_SIZE];
1052 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1053 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1054 struct pfioc_trans {
1055 int size; /* number of elements */
1056 int esize; /* size of each element in bytes */
1057 struct pfioc_trans_e {
1059 char anchor[MAXPATHLEN];
1064 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1065 #define PFR_FLAG_DUMMY 0x00000002
1066 #define PFR_FLAG_FEEDBACK 0x00000004
1067 #define PFR_FLAG_CLSTATS 0x00000008
1068 #define PFR_FLAG_ADDRSTOO 0x00000010
1069 #define PFR_FLAG_REPLACE 0x00000020
1070 #define PFR_FLAG_ALLRSETS 0x00000040
1071 #define PFR_FLAG_ALLMASK 0x0000007F
1073 #define PFR_FLAG_USERIOCTL 0x10000000
1076 struct pfioc_table {
1077 struct pfr_table pfrio_table;
1086 u_int32_t pfrio_ticket;
1088 #define pfrio_exists pfrio_nadd
1089 #define pfrio_nzero pfrio_nadd
1090 #define pfrio_nmatch pfrio_nadd
1091 #define pfrio_naddr pfrio_size2
1092 #define pfrio_setflag pfrio_size2
1093 #define pfrio_clrflag pfrio_nadd
1095 struct pfioc_iface {
1096 char pfiio_name[IFNAMSIZ];
1108 #define DIOCSTART _IO ('D', 1)
1109 #define DIOCSTOP _IO ('D', 2)
1110 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1111 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1112 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1113 /* XXX cut 8 - 17 */
1114 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1115 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1116 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1117 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1118 #define DIOCCLRSTATUS _IO ('D', 22)
1119 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1120 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1121 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1122 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1123 /* XXX cut 26 - 28 */
1124 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1125 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1126 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1127 #define DIOCCLRRULECTRS _IO ('D', 38)
1128 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1129 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1130 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1131 #define DIOCSTARTALTQ _IO ('D', 42)
1132 #define DIOCSTOPALTQ _IO ('D', 43)
1133 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1134 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1135 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1136 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1137 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1138 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1139 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1140 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1141 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1142 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1143 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1144 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1145 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1146 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1147 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1148 /* XXX cut 55 - 57 */
1149 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1150 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1151 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1152 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1153 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1154 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1155 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1156 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1157 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1158 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1159 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1160 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1161 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1162 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1163 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1164 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1165 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1166 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1167 #define DIOCOSFPFLUSH _IO('D', 78)
1168 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1169 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1170 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1171 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1172 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1173 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1174 #define DIOCCLRSRCNODES _IO('D', 85)
1175 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1176 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1177 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1178 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1179 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1180 struct pf_ifspeed_v0 {
1181 char ifname[IFNAMSIZ];
1185 struct pf_ifspeed_v1 {
1186 char ifname[IFNAMSIZ];
1187 u_int32_t baudrate32;
1188 /* layout identical to struct pf_ifspeed_v0 up to this point */
1192 /* Latest version of struct pf_ifspeed_vX */
1193 #define PF_IFSPEED_VERSION 1
1195 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
1196 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
1199 * Compatibility and convenience macros
1202 #ifdef PFIOC_USE_LATEST
1204 * Maintaining in-tree consumers of the ioctl interface is easier when that
1205 * code can be written in terms old names that refer to the latest interface
1206 * version as that reduces the required changes in the consumers to those
1207 * that are functionally necessary to accommodate a new interface version.
1209 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
1210 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
1211 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
1213 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
1214 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
1215 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
1216 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
1217 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
1218 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
1221 * When building out-of-tree code that is written for the old interface,
1222 * such as may exist in ports for example, resolve the old struct tags and
1223 * ioctl command names to the v0 versions.
1225 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
1226 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
1227 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
1229 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
1230 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
1231 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
1232 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
1233 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
1234 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
1235 #endif /* PFIOC_USE_LATEST */
1236 #endif /* _KERNEL */
1239 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node);
1241 struct pf_ksrc_node_list nodes;
1246 LIST_HEAD(, pf_state_key) keys;
1251 LIST_HEAD(, pf_state) states;
1255 extern u_long pf_hashmask;
1256 extern u_long pf_srchashmask;
1257 #define PF_HASHSIZ (131072)
1258 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1259 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1260 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1261 #define V_pf_keyhash VNET(pf_keyhash)
1262 #define V_pf_idhash VNET(pf_idhash)
1263 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1264 #define V_pf_srchash VNET(pf_srchash)
1266 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1268 VNET_DECLARE(void *, pf_swi_cookie);
1269 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1271 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1272 #define V_pf_stateid VNET(pf_stateid)
1274 TAILQ_HEAD(pf_altqqueue, pf_altq);
1275 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
1276 #define V_pf_altqs VNET(pf_altqs)
1277 VNET_DECLARE(struct pf_palist, pf_pabuf);
1278 #define V_pf_pabuf VNET(pf_pabuf)
1280 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1281 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1282 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1283 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1284 VNET_DECLARE(int, altqs_inactive_open);
1285 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1286 VNET_DECLARE(u_int32_t, ticket_pabuf);
1287 #define V_ticket_pabuf VNET(ticket_pabuf)
1288 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1289 #define V_pf_altqs_active VNET(pf_altqs_active)
1290 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
1291 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
1292 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1293 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1294 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
1295 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
1297 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1298 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1300 void pf_initialize(void);
1301 void pf_mtag_initialize(void);
1302 void pf_mtag_cleanup(void);
1303 void pf_cleanup(void);
1305 struct pf_mtag *pf_get_mtag(struct mbuf *);
1307 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1309 extern void pf_altq_ifnet_event(struct ifnet *, int);
1311 VNET_DECLARE(uma_zone_t, pf_state_z);
1312 #define V_pf_state_z VNET(pf_state_z)
1313 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1314 #define V_pf_state_key_z VNET(pf_state_key_z)
1315 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1316 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1318 extern void pf_purge_thread(void *);
1319 extern void pf_unload_vnet_purge(void);
1320 extern void pf_intr(void *);
1321 extern void pf_purge_expired_src_nodes(void);
1323 extern int pf_unlink_state(struct pf_state *, u_int);
1324 #define PF_ENTER_LOCKED 0x00000001
1325 #define PF_RETURN_LOCKED 0x00000002
1326 extern int pf_state_insert(struct pfi_kif *,
1327 struct pf_state_key *,
1328 struct pf_state_key *,
1330 extern void pf_free_state(struct pf_state *);
1332 static __inline void
1333 pf_ref_state(struct pf_state *s)
1336 refcount_acquire(&s->refs);
1340 pf_release_state(struct pf_state *s)
1343 if (refcount_release(&s->refs)) {
1350 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1351 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1353 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *,
1354 struct pf_rule *, sa_family_t, int);
1355 extern void pf_unlink_src_node(struct pf_ksrc_node *);
1356 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *);
1357 extern void pf_print_state(struct pf_state *);
1358 extern void pf_print_flags(u_int8_t);
1359 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1361 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1362 u_int16_t, u_int16_t, u_int8_t);
1364 VNET_DECLARE(struct ifnet *, sync_ifp);
1365 #define V_sync_ifp VNET(sync_ifp);
1366 VNET_DECLARE(struct pf_rule, pf_default_rule);
1367 #define V_pf_default_rule VNET(pf_default_rule)
1368 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1370 void pf_free_rule(struct pf_rule *);
1373 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1374 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1379 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1380 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1382 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1383 struct pf_addr *, struct pf_addr *, u_int8_t);
1384 void pf_addr_inc(struct pf_addr *, sa_family_t);
1385 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1388 u_int32_t pf_new_isn(struct pf_state *);
1389 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1391 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1392 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1394 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1395 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t,
1397 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t,
1399 void pf_send_deferred_syn(struct pf_state *);
1400 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1401 struct pf_addr *, sa_family_t);
1402 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1403 struct pf_addr *, sa_family_t);
1404 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1406 void pf_normalize_init(void);
1407 void pf_normalize_cleanup(void);
1408 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1410 void pf_normalize_tcp_cleanup(struct pf_state *);
1411 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1412 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1413 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1414 u_short *, struct tcphdr *, struct pf_state *,
1415 struct pf_state_peer *, struct pf_state_peer *, int *);
1417 pf_state_expires(const struct pf_state *);
1418 void pf_purge_expired_fragments(void);
1419 void pf_purge_fragments(uint32_t);
1420 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1422 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1423 struct pf_state_key *pf_alloc_state_key(int);
1424 void pfr_initialize(void);
1425 void pfr_cleanup(void);
1426 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1427 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1428 u_int64_t, int, int, int);
1429 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1430 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1432 pfr_attach_table(struct pf_ruleset *, char *);
1433 void pfr_detach_table(struct pfr_ktable *);
1434 int pfr_clr_tables(struct pfr_table *, int *, int);
1435 int pfr_add_tables(struct pfr_table *, int, int *, int);
1436 int pfr_del_tables(struct pfr_table *, int, int *, int);
1437 int pfr_table_count(struct pfr_table *, int);
1438 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1439 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1440 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1441 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1442 int pfr_clr_addrs(struct pfr_table *, int *, int);
1443 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1444 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1446 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1448 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1449 int *, int *, int *, int, u_int32_t);
1450 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1451 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1452 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1454 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1456 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1457 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1458 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1459 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1460 int *, u_int32_t, int);
1462 MALLOC_DECLARE(PFI_MTYPE);
1463 VNET_DECLARE(struct pfi_kif *, pfi_all);
1464 #define V_pfi_all VNET(pfi_all)
1466 void pfi_initialize(void);
1467 void pfi_initialize_vnet(void);
1468 void pfi_cleanup(void);
1469 void pfi_cleanup_vnet(void);
1470 void pfi_kif_ref(struct pfi_kif *);
1471 void pfi_kif_unref(struct pfi_kif *);
1472 struct pfi_kif *pfi_kif_find(const char *);
1473 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1474 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1475 void pfi_kif_purge(void);
1476 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1478 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1479 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1480 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1481 void pfi_update_status(const char *, struct pf_status *);
1482 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1483 int pfi_set_flags(const char *, int);
1484 int pfi_clear_flags(const char *, int);
1486 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1487 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1488 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
1490 void pf_qid2qname(u_int32_t, char *);
1492 VNET_DECLARE(struct pf_kstatus, pf_status);
1493 #define V_pf_status VNET(pf_status)
1499 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1500 #define V_pf_limits VNET(pf_limits)
1502 #endif /* _KERNEL */
1505 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1506 #define V_pf_anchors VNET(pf_anchors)
1507 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1508 #define V_pf_main_anchor VNET(pf_main_anchor)
1509 #define pf_main_ruleset V_pf_main_anchor.ruleset
1512 /* these ruleset functions can be linked into userland programs (pfctl) */
1513 int pf_get_ruleset_number(u_int8_t);
1514 void pf_init_ruleset(struct pf_ruleset *);
1515 int pf_anchor_setup(struct pf_rule *,
1516 const struct pf_ruleset *, const char *);
1517 int pf_anchor_copyout(const struct pf_ruleset *,
1518 const struct pf_rule *, struct pfioc_rule *);
1519 void pf_anchor_remove(struct pf_rule *);
1520 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1521 struct pf_ruleset *pf_find_ruleset(const char *);
1522 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1523 void pf_rs_initialize(void);
1525 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1526 int pf_osfp_add(struct pf_osfp_ioctl *);
1528 struct pf_osfp_enlist *
1529 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1530 const struct tcphdr *);
1531 #endif /* _KERNEL */
1532 void pf_osfp_flush(void);
1533 int pf_osfp_get(struct pf_osfp_ioctl *);
1534 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1537 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1539 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1540 struct pf_ruleset **, int, struct pf_rule **,
1541 struct pf_rule **, int *);
1542 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1543 struct pf_ruleset **, int, struct pf_rule **,
1544 struct pf_rule **, int *);
1546 int pf_map_addr(u_int8_t, struct pf_rule *,
1547 struct pf_addr *, struct pf_addr *,
1548 struct pf_addr *, struct pf_ksrc_node **);
1549 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1550 int, int, struct pfi_kif *, struct pf_ksrc_node **,
1551 struct pf_state_key **, struct pf_state_key **,
1552 struct pf_addr *, struct pf_addr *,
1553 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1555 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1556 struct pf_addr *, u_int16_t, u_int16_t);
1557 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1558 #endif /* _KERNEL */
1560 #endif /* _NET_PFVAR_H_ */