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/rmlock.h>
48 #include <net/radix.h>
49 #include <netinet/in.h>
51 #include <netpfil/pf/pf.h>
52 #include <netpfil/pf/pf_altq.h>
53 #include <netpfil/pf/pf_mtag.h>
62 } pfa; /* 128-bit address */
65 #define addr8 pfa.addr8
66 #define addr16 pfa.addr16
67 #define addr32 pfa.addr32
70 #define PFI_AFLAG_NETWORK 0x01
71 #define PFI_AFLAG_BROADCAST 0x02
72 #define PFI_AFLAG_PEER 0x04
73 #define PFI_AFLAG_MODEMASK 0x07
74 #define PFI_AFLAG_NOALIAS 0x08
82 char ifname[IFNAMSIZ];
83 char tblname[PF_TABLE_NAME_SIZE];
86 struct pfi_dynaddr *dyn;
87 struct pfr_ktable *tbl;
91 u_int8_t type; /* PF_ADDR_* */
92 u_int8_t iflags; /* PFI_AFLAG_* */
98 TAILQ_ENTRY(pfi_dynaddr) entry;
99 struct pf_addr pfid_addr4;
100 struct pf_addr pfid_mask4;
101 struct pf_addr pfid_addr6;
102 struct pf_addr pfid_mask6;
103 struct pfr_ktable *pfid_kt;
104 struct pfi_kif *pfid_kif;
105 int pfid_net; /* mask or 128 */
106 int pfid_acnt4; /* address count IPv4 */
107 int pfid_acnt6; /* address count IPv6 */
108 sa_family_t pfid_af; /* rule af */
109 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
113 * Address manipulation macros
115 #define HTONL(x) (x) = htonl((__uint32_t)(x))
116 #define HTONS(x) (x) = htons((__uint16_t)(x))
117 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
118 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
122 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
123 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
124 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
126 #define PF_STATE_LOCK(s) \
128 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
129 PF_HASHROW_LOCK(_ih); \
132 #define PF_STATE_UNLOCK(s) \
134 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
135 PF_HASHROW_UNLOCK(_ih); \
139 #define PF_STATE_LOCK_ASSERT(s) \
141 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
142 PF_HASHROW_ASSERT(_ih); \
144 #else /* !INVARIANTS */
145 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
146 #endif /* INVARIANTS */
148 extern struct mtx pf_unlnkdrules_mtx;
149 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
150 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
152 extern struct rmlock pf_rules_lock;
153 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
154 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
155 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
156 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
157 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
158 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
159 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
160 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
162 extern struct sx pf_end_lock;
165 #define PFLOG_MODVER 1
166 #define PFSYNC_MODVER 1
168 #define PFLOG_MINVER 1
169 #define PFLOG_PREFVER PFLOG_MODVER
170 #define PFLOG_MAXVER 1
171 #define PFSYNC_MINVER 1
172 #define PFSYNC_PREFVER PFSYNC_MODVER
173 #define PFSYNC_MAXVER 1
183 #define PF_INET6_ONLY
189 #define PF_INET_INET6
195 #define PF_INET_INET6
199 /* Both IPv4 and IPv6 */
202 #define PF_AEQ(a, b, c) \
203 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
204 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
205 (a)->addr32[2] == (b)->addr32[2] && \
206 (a)->addr32[1] == (b)->addr32[1] && \
207 (a)->addr32[0] == (b)->addr32[0])) \
209 #define PF_ANEQ(a, b, c) \
210 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
211 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
212 (a)->addr32[1] != (b)->addr32[1] || \
213 (a)->addr32[2] != (b)->addr32[2] || \
214 (a)->addr32[3] != (b)->addr32[3]))) \
216 #define PF_AZERO(a, c) \
217 ((c == AF_INET && !(a)->addr32[0]) || \
218 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
219 !(a)->addr32[2] && !(a)->addr32[3] )) \
221 #define PF_MATCHA(n, a, m, b, f) \
222 pf_match_addr(n, a, m, b, f)
224 #define PF_ACPY(a, b, f) \
227 #define PF_AINC(a, f) \
230 #define PF_POOLMASK(a, b, c, d, f) \
231 pf_poolmask(a, b, c, d, f)
239 #define PF_AEQ(a, b, c) \
240 ((a)->addr32[3] == (b)->addr32[3] && \
241 (a)->addr32[2] == (b)->addr32[2] && \
242 (a)->addr32[1] == (b)->addr32[1] && \
243 (a)->addr32[0] == (b)->addr32[0]) \
245 #define PF_ANEQ(a, b, c) \
246 ((a)->addr32[3] != (b)->addr32[3] || \
247 (a)->addr32[2] != (b)->addr32[2] || \
248 (a)->addr32[1] != (b)->addr32[1] || \
249 (a)->addr32[0] != (b)->addr32[0]) \
251 #define PF_AZERO(a, c) \
252 (!(a)->addr32[0] && \
257 #define PF_MATCHA(n, a, m, b, f) \
258 pf_match_addr(n, a, m, b, f)
260 #define PF_ACPY(a, b, f) \
263 #define PF_AINC(a, f) \
266 #define PF_POOLMASK(a, b, c, d, f) \
267 pf_poolmask(a, b, c, d, f)
274 #define PF_AEQ(a, b, c) \
275 ((a)->addr32[0] == (b)->addr32[0])
277 #define PF_ANEQ(a, b, c) \
278 ((a)->addr32[0] != (b)->addr32[0])
280 #define PF_AZERO(a, c) \
283 #define PF_MATCHA(n, a, m, b, f) \
284 pf_match_addr(n, a, m, b, f)
286 #define PF_ACPY(a, b, f) \
287 (a)->v4.s_addr = (b)->v4.s_addr
289 #define PF_AINC(a, f) \
291 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
294 #define PF_POOLMASK(a, b, c, d, f) \
296 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
297 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
300 #endif /* PF_INET_ONLY */
301 #endif /* PF_INET6_ONLY */
302 #endif /* PF_INET_INET6 */
305 * XXX callers not FIB-aware in our version of pf yet.
306 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
308 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
310 (((aw)->type == PF_ADDR_NOROUTE && \
311 pf_routable((x), (af), NULL, (rtid))) || \
312 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
313 pf_routable((x), (af), (ifp), (rtid))) || \
314 ((aw)->type == PF_ADDR_TABLE && \
315 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
316 ((aw)->type == PF_ADDR_DYNIFTL && \
317 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
318 ((aw)->type == PF_ADDR_RANGE && \
319 !pf_match_addr_range(&(aw)->v.a.addr, \
320 &(aw)->v.a.mask, (x), (af))) || \
321 ((aw)->type == PF_ADDR_ADDRMASK && \
322 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
323 !PF_MATCHA(0, &(aw)->v.a.addr, \
324 &(aw)->v.a.mask, (x), (af))))) != \
339 struct pf_rule_addr {
340 struct pf_addr_wrap addr;
347 struct pf_addr_wrap addr;
348 TAILQ_ENTRY(pf_pooladdr) entries;
349 char ifname[IFNAMSIZ];
353 TAILQ_HEAD(pf_palist, pf_pooladdr);
355 struct pf_poolhashkey {
360 } pfk; /* 128-bit hash key */
361 #define key8 pfk.key8
362 #define key16 pfk.key16
363 #define key32 pfk.key32
367 struct pf_palist list;
368 struct pf_pooladdr *cur;
369 struct pf_poolhashkey key;
370 struct pf_addr counter;
372 u_int16_t proxy_port[2];
377 /* A packed Operating System description for fingerprinting */
378 typedef u_int32_t pf_osfp_t;
379 #define PF_OSFP_ANY ((pf_osfp_t)0)
380 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
381 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
383 struct pf_osfp_entry {
384 SLIST_ENTRY(pf_osfp_entry) fp_entry;
387 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
388 #define PF_OSFP_GENERIC 0x002 /* generic signature */
389 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
390 #define PF_OSFP_LEN 32
391 char fp_class_nm[PF_OSFP_LEN];
392 char fp_version_nm[PF_OSFP_LEN];
393 char fp_subtype_nm[PF_OSFP_LEN];
395 #define PF_OSFP_ENTRY_EQ(a, b) \
396 ((a)->fp_os == (b)->fp_os && \
397 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
398 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
399 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
401 /* handle pf_osfp_t packing */
402 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
403 #define _FP_UNUSED_BITS 1
404 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
405 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
406 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
407 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
408 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
409 ((1 << _FP_CLASS_BITS) - 1); \
410 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
411 ((1 << _FP_VERSION_BITS) - 1);\
412 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
414 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
415 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
416 + _FP_SUBTYPE_BITS); \
417 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
419 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
422 /* the fingerprint of an OSes TCP SYN packet */
423 typedef u_int64_t pf_tcpopts_t;
424 struct pf_os_fingerprint {
425 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
426 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
427 u_int16_t fp_wsize; /* TCP window size */
428 u_int16_t fp_psize; /* ip->ip_len */
429 u_int16_t fp_mss; /* TCP MSS */
431 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
432 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
433 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
434 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
435 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
436 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
437 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
438 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
439 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
440 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
441 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
442 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
443 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
444 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
445 #define PF_OSFP_INET6 0x4000 /* IPv6 */
446 u_int8_t fp_optcnt; /* TCP option count */
447 u_int8_t fp_wscale; /* TCP window scaling */
448 u_int8_t fp_ttl; /* IPv4 TTL */
449 #define PF_OSFP_MAXTTL_OFFSET 40
450 /* TCP options packing */
451 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
452 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
453 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
454 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
455 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
456 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
457 #define PF_OSFP_MAX_OPTS \
458 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
459 / PF_OSFP_TCPOPT_BITS
461 SLIST_ENTRY(pf_os_fingerprint) fp_next;
464 struct pf_osfp_ioctl {
465 struct pf_osfp_entry fp_os;
466 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
467 u_int16_t fp_wsize; /* TCP window size */
468 u_int16_t fp_psize; /* ip->ip_len */
469 u_int16_t fp_mss; /* TCP MSS */
471 u_int8_t fp_optcnt; /* TCP option count */
472 u_int8_t fp_wscale; /* TCP window scaling */
473 u_int8_t fp_ttl; /* IPv4 TTL */
475 int fp_getnum; /* DIOCOSFPGET number */
484 #define PF_ANCHOR_NAME_SIZE 64
487 struct pf_rule_addr src;
488 struct pf_rule_addr dst;
489 #define PF_SKIP_IFP 0
490 #define PF_SKIP_DIR 1
492 #define PF_SKIP_PROTO 3
493 #define PF_SKIP_SRC_ADDR 4
494 #define PF_SKIP_SRC_PORT 5
495 #define PF_SKIP_DST_ADDR 6
496 #define PF_SKIP_DST_PORT 7
497 #define PF_SKIP_COUNT 8
498 union pf_rule_ptr skip[PF_SKIP_COUNT];
499 #define PF_RULE_LABEL_SIZE 64
500 char label[PF_RULE_LABEL_SIZE];
501 char ifname[IFNAMSIZ];
502 char qname[PF_QNAME_SIZE];
503 char pqname[PF_QNAME_SIZE];
504 #define PF_TAG_NAME_SIZE 64
505 char tagname[PF_TAG_NAME_SIZE];
506 char match_tagname[PF_TAG_NAME_SIZE];
508 char overload_tblname[PF_TABLE_NAME_SIZE];
510 TAILQ_ENTRY(pf_rule) entries;
511 struct pf_pool rpool;
513 u_int64_t evaluations;
514 u_int64_t packets[2];
518 struct pf_anchor *anchor;
519 struct pfr_ktable *overload_tbl;
521 pf_osfp_t os_fingerprint;
524 u_int32_t timeout[PFTM_MAX];
525 u_int32_t max_states;
526 u_int32_t max_src_nodes;
527 u_int32_t max_src_states;
528 u_int32_t max_src_conn;
541 counter_u64_t states_cur;
542 counter_u64_t states_tot;
543 counter_u64_t src_nodes;
545 u_int16_t return_icmp;
546 u_int16_t return_icmp6;
550 u_int16_t scrub_flags;
552 struct pf_rule_uid uid;
553 struct pf_rule_gid gid;
562 u_int8_t match_tag_not;
565 #define PF_STATE_NORMAL 0x1
566 #define PF_STATE_MODULATE 0x2
567 #define PF_STATE_SYNPROXY 0x3
581 u_int8_t anchor_relative;
582 u_int8_t anchor_wildcard;
584 #define PF_FLUSH 0x01
585 #define PF_FLUSH_GLOBAL 0x02
587 #define PF_PRIO_ZERO 0xff /* match "prio 0" packets */
588 #define PF_PRIO_MAX 7
590 u_int8_t set_prio[2];
597 uint64_t u_states_cur;
598 uint64_t u_states_tot;
599 uint64_t u_src_nodes;
603 #define PFRULE_DROP 0x0000
604 #define PFRULE_RETURNRST 0x0001
605 #define PFRULE_FRAGMENT 0x0002
606 #define PFRULE_RETURNICMP 0x0004
607 #define PFRULE_RETURN 0x0008
608 #define PFRULE_NOSYNC 0x0010
609 #define PFRULE_SRCTRACK 0x0020 /* track source states */
610 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
611 #define PFRULE_REFS 0x0080 /* rule has references */
614 #define PFRULE_NODF 0x0100
615 #define PFRULE_RANDOMID 0x0800
616 #define PFRULE_REASSEMBLE_TCP 0x1000
617 #define PFRULE_SET_TOS 0x2000
619 /* rule flags again */
620 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
621 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
623 #define PFSTATE_HIWAT 10000 /* default state table size */
624 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
625 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
628 struct pf_threshold {
630 #define PF_THRESHOLD_MULT 1000
631 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
638 LIST_ENTRY(pf_src_node) entry;
640 struct pf_addr raddr;
641 union pf_rule_ptr rule;
644 u_int64_t packets[2];
647 struct pf_threshold conn_rate;
654 #define PFSNODE_HIWAT 10000 /* default source node table size */
656 struct pf_state_scrub {
657 struct timeval pfss_last; /* time received last packet */
658 u_int32_t pfss_tsecr; /* last echoed timestamp */
659 u_int32_t pfss_tsval; /* largest timestamp */
660 u_int32_t pfss_tsval0; /* original timestamp */
661 u_int16_t pfss_flags;
662 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
663 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
664 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
665 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
666 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
667 u_int8_t pfss_ttl; /* stashed TTL */
669 u_int32_t pfss_ts_mod; /* timestamp modulation */
672 struct pf_state_host {
678 struct pf_state_peer {
679 struct pf_state_scrub *scrub; /* state is scrubbed */
680 u_int32_t seqlo; /* Max sequence number sent */
681 u_int32_t seqhi; /* Max the other end ACKd + win */
682 u_int32_t seqdiff; /* Sequence number modulator */
683 u_int16_t max_win; /* largest window (pre scaling) */
684 u_int16_t mss; /* Maximum segment size option */
685 u_int8_t state; /* active state level */
686 u_int8_t wscale; /* window scaling factor */
687 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
691 /* Keep synced with struct pf_state_key. */
692 struct pf_state_key_cmp {
693 struct pf_addr addr[2];
700 struct pf_state_key {
701 struct pf_addr addr[2];
707 LIST_ENTRY(pf_state_key) entry;
708 TAILQ_HEAD(, pf_state) states[2];
711 /* Keep synced with struct pf_state. */
712 struct pf_state_cmp {
726 TAILQ_ENTRY(pf_state) sync_list;
727 TAILQ_ENTRY(pf_state) key_list[2];
728 LIST_ENTRY(pf_state) entry;
729 struct pf_state_peer src;
730 struct pf_state_peer dst;
731 union pf_rule_ptr rule;
732 union pf_rule_ptr anchor;
733 union pf_rule_ptr nat_rule;
734 struct pf_addr rt_addr;
735 struct pf_state_key *key[2]; /* addresses stack and wire */
737 struct pfi_kif *rt_kif;
738 struct pf_src_node *src_node;
739 struct pf_src_node *nat_src_node;
740 u_int64_t packets[2];
744 u_int32_t pfsync_time;
747 u_int8_t state_flags;
748 #define PFSTATE_ALLOWOPTS 0x01
749 #define PFSTATE_SLOPPY 0x02
750 /* was PFSTATE_PFLOW 0x04 */
751 #define PFSTATE_NOSYNC 0x08
752 #define PFSTATE_ACK 0x10
753 #define PFSTATE_SETPRIO 0x0200
754 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
756 u_int8_t sync_state; /* PFSYNC_S_x */
759 u_int8_t sync_updates;
764 * Unified state structures for pulling states out of the kernel
765 * used by pfsync(4) and the pf(4) ioctl.
767 struct pfsync_state_scrub {
768 u_int16_t pfss_flags;
769 u_int8_t pfss_ttl; /* stashed TTL */
770 #define PFSYNC_SCRUB_FLAG_VALID 0x01
772 u_int32_t pfss_ts_mod; /* timestamp modulation */
775 struct pfsync_state_peer {
776 struct pfsync_state_scrub scrub; /* state is scrubbed */
777 u_int32_t seqlo; /* Max sequence number sent */
778 u_int32_t seqhi; /* Max the other end ACKd + win */
779 u_int32_t seqdiff; /* Sequence number modulator */
780 u_int16_t max_win; /* largest window (pre scaling) */
781 u_int16_t mss; /* Maximum segment size option */
782 u_int8_t state; /* active state level */
783 u_int8_t wscale; /* window scaling factor */
787 struct pfsync_state_key {
788 struct pf_addr addr[2];
792 struct pfsync_state {
794 char ifname[IFNAMSIZ];
795 struct pfsync_state_key key[2];
796 struct pfsync_state_peer src;
797 struct pfsync_state_peer dst;
798 struct pf_addr rt_addr;
804 u_int32_t packets[2][2];
805 u_int32_t bytes[2][2];
812 u_int8_t state_flags;
820 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
821 typedef void pfsync_insert_state_t(struct pf_state *);
822 typedef void pfsync_update_state_t(struct pf_state *);
823 typedef void pfsync_delete_state_t(struct pf_state *);
824 typedef void pfsync_clear_states_t(u_int32_t, const char *);
825 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
827 extern pfsync_state_import_t *pfsync_state_import_ptr;
828 extern pfsync_insert_state_t *pfsync_insert_state_ptr;
829 extern pfsync_update_state_t *pfsync_update_state_ptr;
830 extern pfsync_delete_state_t *pfsync_delete_state_ptr;
831 extern pfsync_clear_states_t *pfsync_clear_states_ptr;
832 extern pfsync_defer_t *pfsync_defer_ptr;
834 void pfsync_state_export(struct pfsync_state *,
840 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
841 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
842 struct pf_ruleset *, struct pf_pdesc *, int);
843 extern pflog_packet_t *pflog_packet_ptr;
847 #define PFSYNC_FLAG_SRCNODE 0x04
848 #define PFSYNC_FLAG_NATSRCNODE 0x08
850 /* for copies to/from network byte order */
851 /* ioctl interface also uses network byte order */
852 #define pf_state_peer_hton(s,d) do { \
853 (d)->seqlo = htonl((s)->seqlo); \
854 (d)->seqhi = htonl((s)->seqhi); \
855 (d)->seqdiff = htonl((s)->seqdiff); \
856 (d)->max_win = htons((s)->max_win); \
857 (d)->mss = htons((s)->mss); \
858 (d)->state = (s)->state; \
859 (d)->wscale = (s)->wscale; \
861 (d)->scrub.pfss_flags = \
862 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
863 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
864 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
865 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
869 #define pf_state_peer_ntoh(s,d) do { \
870 (d)->seqlo = ntohl((s)->seqlo); \
871 (d)->seqhi = ntohl((s)->seqhi); \
872 (d)->seqdiff = ntohl((s)->seqdiff); \
873 (d)->max_win = ntohs((s)->max_win); \
874 (d)->mss = ntohs((s)->mss); \
875 (d)->state = (s)->state; \
876 (d)->wscale = (s)->wscale; \
877 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
878 (d)->scrub != NULL) { \
879 (d)->scrub->pfss_flags = \
880 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
881 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
882 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
886 #define pf_state_counter_hton(s,d) do { \
887 d[0] = htonl((s>>32)&0xffffffff); \
888 d[1] = htonl(s&0xffffffff); \
891 #define pf_state_counter_from_pfsync(s) \
892 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
894 #define pf_state_counter_ntoh(s,d) do { \
900 TAILQ_HEAD(pf_rulequeue, pf_rule);
906 struct pf_rulequeue queues[2];
908 struct pf_rulequeue *ptr;
909 struct pf_rule **ptr_array;
914 } rules[PF_RULESET_MAX];
915 struct pf_anchor *anchor;
921 RB_HEAD(pf_anchor_global, pf_anchor);
922 RB_HEAD(pf_anchor_node, pf_anchor);
924 RB_ENTRY(pf_anchor) entry_global;
925 RB_ENTRY(pf_anchor) entry_node;
926 struct pf_anchor *parent;
927 struct pf_anchor_node children;
928 char name[PF_ANCHOR_NAME_SIZE];
929 char path[MAXPATHLEN];
930 struct pf_ruleset ruleset;
931 int refcnt; /* anchor rules */
932 int match; /* XXX: used for pfctl black magic */
934 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
935 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
937 #define PF_RESERVED_ANCHOR "_pf"
939 #define PFR_TFLAG_PERSIST 0x00000001
940 #define PFR_TFLAG_CONST 0x00000002
941 #define PFR_TFLAG_ACTIVE 0x00000004
942 #define PFR_TFLAG_INACTIVE 0x00000008
943 #define PFR_TFLAG_REFERENCED 0x00000010
944 #define PFR_TFLAG_REFDANCHOR 0x00000020
945 #define PFR_TFLAG_COUNTERS 0x00000040
946 /* Adjust masks below when adding flags. */
947 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
950 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
951 PFR_TFLAG_INACTIVE | \
952 PFR_TFLAG_REFERENCED | \
953 PFR_TFLAG_REFDANCHOR)
954 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
957 PFR_TFLAG_INACTIVE | \
958 PFR_TFLAG_REFERENCED | \
959 PFR_TFLAG_REFDANCHOR | \
962 struct pf_anchor_stackframe;
965 char pfrt_anchor[MAXPATHLEN];
966 char pfrt_name[PF_TABLE_NAME_SIZE];
967 u_int32_t pfrt_flags;
971 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
972 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
973 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
977 struct in_addr _pfra_ip4addr;
978 struct in6_addr _pfra_ip6addr;
985 #define pfra_ip4addr pfra_u._pfra_ip4addr
986 #define pfra_ip6addr pfra_u._pfra_ip6addr
988 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
989 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
990 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
993 struct pfr_addr pfras_a;
994 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
995 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
999 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1002 struct pfr_table pfrts_t;
1003 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1004 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1005 u_int64_t pfrts_match;
1006 u_int64_t pfrts_nomatch;
1009 int pfrts_refcnt[PFR_REFCNT_MAX];
1011 #define pfrts_name pfrts_t.pfrt_name
1012 #define pfrts_flags pfrts_t.pfrt_flags
1014 #ifndef _SOCKADDR_UNION_DEFINED
1015 #define _SOCKADDR_UNION_DEFINED
1016 union sockaddr_union {
1018 struct sockaddr_in sin;
1019 struct sockaddr_in6 sin6;
1021 #endif /* _SOCKADDR_UNION_DEFINED */
1023 struct pfr_kcounters {
1024 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1025 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1028 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1030 struct radix_node pfrke_node[2];
1031 union sockaddr_union pfrke_sa;
1032 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1033 struct pfr_kcounters *pfrke_counters;
1038 u_int8_t pfrke_mark;
1041 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1042 RB_HEAD(pfr_ktablehead, pfr_ktable);
1044 struct pfr_tstats pfrkt_ts;
1045 RB_ENTRY(pfr_ktable) pfrkt_tree;
1046 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1047 struct radix_node_head *pfrkt_ip4;
1048 struct radix_node_head *pfrkt_ip6;
1049 struct pfr_ktable *pfrkt_shadow;
1050 struct pfr_ktable *pfrkt_root;
1051 struct pf_ruleset *pfrkt_rs;
1055 #define pfrkt_t pfrkt_ts.pfrts_t
1056 #define pfrkt_name pfrkt_t.pfrt_name
1057 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1058 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1059 #define pfrkt_flags pfrkt_t.pfrt_flags
1060 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1061 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1062 #define pfrkt_packets pfrkt_ts.pfrts_packets
1063 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1064 #define pfrkt_match pfrkt_ts.pfrts_match
1065 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1066 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1068 /* keep synced with pfi_kif, used in RB_FIND */
1069 struct pfi_kif_cmp {
1070 char pfik_name[IFNAMSIZ];
1074 char pfik_name[IFNAMSIZ];
1076 RB_ENTRY(pfi_kif) _pfik_tree;
1077 LIST_ENTRY(pfi_kif) _pfik_list;
1079 #define pfik_tree _pfik_glue._pfik_tree
1080 #define pfik_list _pfik_glue._pfik_list
1081 u_int64_t pfik_packets[2][2][2];
1082 u_int64_t pfik_bytes[2][2][2];
1083 u_int32_t pfik_tzero;
1085 struct ifnet *pfik_ifp;
1086 struct ifg_group *pfik_group;
1087 u_int pfik_rulerefs;
1088 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1091 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1092 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1100 u_int64_t tot_len; /* Make Mickey money */
1106 struct icmp6_hdr *icmp6;
1111 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1112 struct pf_addr *src; /* src address */
1113 struct pf_addr *dst; /* dst address */
1116 struct pf_mtag *pf_mtag;
1118 u_int32_t p_len; /* total length of payload */
1121 u_int16_t *proto_sum;
1122 u_int16_t flags; /* Let SCRUB trigger behavior in
1123 * state code. Easier than tags */
1124 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1125 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1129 u_int8_t dir; /* direction */
1130 u_int8_t sidx; /* key index for source */
1131 u_int8_t didx; /* key index for destination */
1134 /* flags for RDR options */
1135 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1136 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1138 /* UDP state enumeration */
1139 #define PFUDPS_NO_TRAFFIC 0
1140 #define PFUDPS_SINGLE 1
1141 #define PFUDPS_MULTIPLE 2
1143 #define PFUDPS_NSTATES 3 /* number of state levels */
1145 #define PFUDPS_NAMES { \
1152 /* Other protocol state enumeration */
1153 #define PFOTHERS_NO_TRAFFIC 0
1154 #define PFOTHERS_SINGLE 1
1155 #define PFOTHERS_MULTIPLE 2
1157 #define PFOTHERS_NSTATES 3 /* number of state levels */
1159 #define PFOTHERS_NAMES { \
1166 #define ACTION_SET(a, x) \
1172 #define REASON_SET(a, x) \
1176 if (x < PFRES_MAX) \
1177 counter_u64_add(V_pf_status.counters[x], 1); \
1181 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1182 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */
1183 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */
1184 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1191 char ifname[IFNAMSIZ];
1192 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1197 struct in_addr ipv4;
1198 struct in6_addr ipv6;
1203 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1204 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1207 * ioctl parameter structures
1210 struct pfioc_pooladdr {
1218 char anchor[MAXPATHLEN];
1219 struct pf_pooladdr addr;
1225 u_int32_t pool_ticket;
1227 char anchor[MAXPATHLEN];
1228 char anchor_call[MAXPATHLEN];
1229 struct pf_rule rule;
1232 struct pfioc_natlook {
1233 struct pf_addr saddr;
1234 struct pf_addr daddr;
1235 struct pf_addr rsaddr;
1236 struct pf_addr rdaddr;
1246 struct pfioc_state {
1247 struct pfsync_state state;
1250 struct pfioc_src_node_kill {
1251 sa_family_t psnk_af;
1252 struct pf_rule_addr psnk_src;
1253 struct pf_rule_addr psnk_dst;
1257 struct pfioc_state_kill {
1258 struct pf_state_cmp psk_pfcmp;
1261 struct pf_rule_addr psk_src;
1262 struct pf_rule_addr psk_dst;
1263 char psk_ifname[IFNAMSIZ];
1264 char psk_label[PF_RULE_LABEL_SIZE];
1268 struct pfioc_states {
1272 struct pfsync_state *psu_states;
1274 #define ps_buf ps_u.psu_buf
1275 #define ps_states ps_u.psu_states
1278 struct pfioc_src_nodes {
1282 struct pf_src_node *psu_src_nodes;
1284 #define psn_buf psn_u.psu_buf
1285 #define psn_src_nodes psn_u.psu_src_nodes
1289 char ifname[IFNAMSIZ];
1297 struct pfioc_limit {
1306 struct pf_altq altq;
1309 struct pfioc_qstats {
1317 struct pfioc_ruleset {
1319 char path[MAXPATHLEN];
1320 char name[PF_ANCHOR_NAME_SIZE];
1323 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1324 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1325 struct pfioc_trans {
1326 int size; /* number of elements */
1327 int esize; /* size of each element in bytes */
1328 struct pfioc_trans_e {
1330 char anchor[MAXPATHLEN];
1335 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1336 #define PFR_FLAG_DUMMY 0x00000002
1337 #define PFR_FLAG_FEEDBACK 0x00000004
1338 #define PFR_FLAG_CLSTATS 0x00000008
1339 #define PFR_FLAG_ADDRSTOO 0x00000010
1340 #define PFR_FLAG_REPLACE 0x00000020
1341 #define PFR_FLAG_ALLRSETS 0x00000040
1342 #define PFR_FLAG_ALLMASK 0x0000007F
1344 #define PFR_FLAG_USERIOCTL 0x10000000
1347 struct pfioc_table {
1348 struct pfr_table pfrio_table;
1357 u_int32_t pfrio_ticket;
1359 #define pfrio_exists pfrio_nadd
1360 #define pfrio_nzero pfrio_nadd
1361 #define pfrio_nmatch pfrio_nadd
1362 #define pfrio_naddr pfrio_size2
1363 #define pfrio_setflag pfrio_size2
1364 #define pfrio_clrflag pfrio_nadd
1366 struct pfioc_iface {
1367 char pfiio_name[IFNAMSIZ];
1380 #define DIOCSTART _IO ('D', 1)
1381 #define DIOCSTOP _IO ('D', 2)
1382 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1383 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1384 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1385 /* XXX cut 8 - 17 */
1386 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1387 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1388 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1389 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1390 #define DIOCCLRSTATUS _IO ('D', 22)
1391 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1392 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1393 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1394 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1395 /* XXX cut 26 - 28 */
1396 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1397 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1398 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1399 #define DIOCCLRRULECTRS _IO ('D', 38)
1400 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1401 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1402 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1403 #define DIOCSTARTALTQ _IO ('D', 42)
1404 #define DIOCSTOPALTQ _IO ('D', 43)
1405 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1406 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1407 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1408 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1409 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1410 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1411 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1412 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1413 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1414 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1415 /* XXX cut 55 - 57 */
1416 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1417 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1418 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1419 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1420 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1421 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1422 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1423 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1424 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1425 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1426 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1427 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1428 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1429 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1430 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1431 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1432 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1433 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1434 #define DIOCOSFPFLUSH _IO('D', 78)
1435 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1436 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1437 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1438 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1439 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1440 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1441 #define DIOCCLRSRCNODES _IO('D', 85)
1442 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1443 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1444 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1445 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1446 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1448 char ifname[IFNAMSIZ];
1451 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1454 LIST_HEAD(pf_src_node_list, pf_src_node);
1456 struct pf_src_node_list nodes;
1461 LIST_HEAD(, pf_state_key) keys;
1466 LIST_HEAD(, pf_state) states;
1470 extern u_long pf_hashmask;
1471 extern u_long pf_srchashmask;
1472 #define PF_HASHSIZ (32768)
1473 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1474 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1475 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1476 #define V_pf_keyhash VNET(pf_keyhash)
1477 #define V_pf_idhash VNET(pf_idhash)
1478 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1479 #define V_pf_srchash VNET(pf_srchash)
1481 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1483 VNET_DECLARE(void *, pf_swi_cookie);
1484 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1486 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1487 #define V_pf_stateid VNET(pf_stateid)
1489 TAILQ_HEAD(pf_altqqueue, pf_altq);
1490 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1491 #define V_pf_altqs VNET(pf_altqs)
1492 VNET_DECLARE(struct pf_palist, pf_pabuf);
1493 #define V_pf_pabuf VNET(pf_pabuf)
1495 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1496 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1497 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1498 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1499 VNET_DECLARE(int, altqs_inactive_open);
1500 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1501 VNET_DECLARE(u_int32_t, ticket_pabuf);
1502 #define V_ticket_pabuf VNET(ticket_pabuf)
1503 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1504 #define V_pf_altqs_active VNET(pf_altqs_active)
1505 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1506 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1508 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1509 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1511 void pf_initialize(void);
1512 void pf_mtag_initialize(void);
1513 void pf_mtag_cleanup(void);
1514 void pf_cleanup(void);
1516 struct pf_mtag *pf_get_mtag(struct mbuf *);
1518 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1520 extern void pf_altq_ifnet_event(struct ifnet *, int);
1522 VNET_DECLARE(uma_zone_t, pf_state_z);
1523 #define V_pf_state_z VNET(pf_state_z)
1524 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1525 #define V_pf_state_key_z VNET(pf_state_key_z)
1526 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1527 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1529 extern void pf_purge_thread(void *);
1530 extern void pf_unload_vnet_purge(void);
1531 extern void pf_intr(void *);
1532 extern void pf_purge_expired_src_nodes(void);
1534 extern int pf_unlink_state(struct pf_state *, u_int);
1535 #define PF_ENTER_LOCKED 0x00000001
1536 #define PF_RETURN_LOCKED 0x00000002
1537 extern int pf_state_insert(struct pfi_kif *,
1538 struct pf_state_key *,
1539 struct pf_state_key *,
1541 extern void pf_free_state(struct pf_state *);
1543 static __inline void
1544 pf_ref_state(struct pf_state *s)
1547 refcount_acquire(&s->refs);
1551 pf_release_state(struct pf_state *s)
1554 if (refcount_release(&s->refs)) {
1561 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1562 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1564 extern struct pf_src_node *pf_find_src_node(struct pf_addr *,
1565 struct pf_rule *, sa_family_t, int);
1566 extern void pf_unlink_src_node(struct pf_src_node *);
1567 extern u_int pf_free_src_nodes(struct pf_src_node_list *);
1568 extern void pf_print_state(struct pf_state *);
1569 extern void pf_print_flags(u_int8_t);
1570 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1572 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1573 u_int16_t, u_int16_t, u_int8_t);
1575 VNET_DECLARE(struct ifnet *, sync_ifp);
1576 #define V_sync_ifp VNET(sync_ifp);
1577 VNET_DECLARE(struct pf_rule, pf_default_rule);
1578 #define V_pf_default_rule VNET(pf_default_rule)
1579 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1581 void pf_free_rule(struct pf_rule *);
1584 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1585 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1590 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1591 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1593 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1594 struct pf_addr *, struct pf_addr *, u_int8_t);
1595 void pf_addr_inc(struct pf_addr *, sa_family_t);
1596 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1599 u_int32_t pf_new_isn(struct pf_state *);
1600 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1602 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1603 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1605 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1606 void pf_send_deferred_syn(struct pf_state *);
1607 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1608 struct pf_addr *, sa_family_t);
1609 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1610 struct pf_addr *, sa_family_t);
1611 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1613 void pf_normalize_init(void);
1614 void pf_normalize_cleanup(void);
1615 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1617 void pf_normalize_tcp_cleanup(struct pf_state *);
1618 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1619 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1620 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1621 u_short *, struct tcphdr *, struct pf_state *,
1622 struct pf_state_peer *, struct pf_state_peer *, int *);
1624 pf_state_expires(const struct pf_state *);
1625 void pf_purge_expired_fragments(void);
1626 void pf_purge_fragments(uint32_t);
1627 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1629 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1630 struct pf_state_key *pf_alloc_state_key(int);
1631 void pfr_initialize(void);
1632 void pfr_cleanup(void);
1633 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1634 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1635 u_int64_t, int, int, int);
1636 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1637 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1639 pfr_attach_table(struct pf_ruleset *, char *);
1640 void pfr_detach_table(struct pfr_ktable *);
1641 int pfr_clr_tables(struct pfr_table *, int *, int);
1642 int pfr_add_tables(struct pfr_table *, int, int *, int);
1643 int pfr_del_tables(struct pfr_table *, int, int *, int);
1644 int pfr_table_count(struct pfr_table *, int);
1645 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1646 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1647 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1648 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1649 int pfr_clr_addrs(struct pfr_table *, int *, int);
1650 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1651 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1653 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1655 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1656 int *, int *, int *, int, u_int32_t);
1657 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1658 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1659 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1661 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1663 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1664 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1665 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1666 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1667 int *, u_int32_t, int);
1669 MALLOC_DECLARE(PFI_MTYPE);
1670 VNET_DECLARE(struct pfi_kif *, pfi_all);
1671 #define V_pfi_all VNET(pfi_all)
1673 void pfi_initialize(void);
1674 void pfi_initialize_vnet(void);
1675 void pfi_cleanup(void);
1676 void pfi_cleanup_vnet(void);
1677 void pfi_kif_ref(struct pfi_kif *);
1678 void pfi_kif_unref(struct pfi_kif *);
1679 struct pfi_kif *pfi_kif_find(const char *);
1680 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1681 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1682 void pfi_kif_purge(void);
1683 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1685 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1686 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1687 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1688 void pfi_update_status(const char *, struct pf_status *);
1689 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1690 int pfi_set_flags(const char *, int);
1691 int pfi_clear_flags(const char *, int);
1693 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1694 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1695 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
1697 void pf_qid2qname(u_int32_t, char *);
1699 VNET_DECLARE(struct pf_kstatus, pf_status);
1700 #define V_pf_status VNET(pf_status)
1706 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1707 #define V_pf_limits VNET(pf_limits)
1709 #endif /* _KERNEL */
1712 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1713 #define V_pf_anchors VNET(pf_anchors)
1714 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1715 #define V_pf_main_anchor VNET(pf_main_anchor)
1716 #define pf_main_ruleset V_pf_main_anchor.ruleset
1719 /* these ruleset functions can be linked into userland programs (pfctl) */
1720 int pf_get_ruleset_number(u_int8_t);
1721 void pf_init_ruleset(struct pf_ruleset *);
1722 int pf_anchor_setup(struct pf_rule *,
1723 const struct pf_ruleset *, const char *);
1724 int pf_anchor_copyout(const struct pf_ruleset *,
1725 const struct pf_rule *, struct pfioc_rule *);
1726 void pf_anchor_remove(struct pf_rule *);
1727 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1728 struct pf_ruleset *pf_find_ruleset(const char *);
1729 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1730 void pf_rs_initialize(void);
1732 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1733 int pf_osfp_add(struct pf_osfp_ioctl *);
1735 struct pf_osfp_enlist *
1736 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1737 const struct tcphdr *);
1738 #endif /* _KERNEL */
1739 void pf_osfp_flush(void);
1740 int pf_osfp_get(struct pf_osfp_ioctl *);
1741 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1744 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1746 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1747 struct pf_ruleset **, int, struct pf_rule **,
1748 struct pf_rule **, int *);
1749 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1750 struct pf_ruleset **, int, struct pf_rule **,
1751 struct pf_rule **, int *);
1753 int pf_map_addr(u_int8_t, struct pf_rule *,
1754 struct pf_addr *, struct pf_addr *,
1755 struct pf_addr *, struct pf_src_node **);
1756 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1757 int, int, struct pfi_kif *, struct pf_src_node **,
1758 struct pf_state_key **, struct pf_state_key **,
1759 struct pf_addr *, struct pf_addr *,
1760 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1762 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1763 struct pf_addr *, u_int16_t, u_int16_t);
1764 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1765 #endif /* _KERNEL */
1767 #endif /* _NET_PFVAR_H_ */