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>
57 #define PFI_AFLAG_NETWORK 0x01
58 #define PFI_AFLAG_BROADCAST 0x02
59 #define PFI_AFLAG_PEER 0x04
60 #define PFI_AFLAG_MODEMASK 0x07
61 #define PFI_AFLAG_NOALIAS 0x08
69 char ifname[IFNAMSIZ];
70 char tblname[PF_TABLE_NAME_SIZE];
73 struct pfi_dynaddr *dyn;
74 struct pfr_ktable *tbl;
78 u_int8_t type; /* PF_ADDR_* */
79 u_int8_t iflags; /* PFI_AFLAG_* */
85 MALLOC_DECLARE(M_PFHASH);
88 TAILQ_ENTRY(pfi_dynaddr) entry;
89 struct pf_addr pfid_addr4;
90 struct pf_addr pfid_mask4;
91 struct pf_addr pfid_addr6;
92 struct pf_addr pfid_mask6;
93 struct pfr_ktable *pfid_kt;
94 struct pfi_kif *pfid_kif;
95 int pfid_net; /* mask or 128 */
96 int pfid_acnt4; /* address count IPv4 */
97 int pfid_acnt6; /* address count IPv6 */
98 sa_family_t pfid_af; /* rule af */
99 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
103 * Address manipulation macros
105 #define HTONL(x) (x) = htonl((__uint32_t)(x))
106 #define HTONS(x) (x) = htons((__uint16_t)(x))
107 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
108 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
112 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
113 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
114 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
116 #define PF_STATE_LOCK(s) \
118 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
119 PF_HASHROW_LOCK(_ih); \
122 #define PF_STATE_UNLOCK(s) \
124 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
125 PF_HASHROW_UNLOCK(_ih); \
129 #define PF_STATE_LOCK_ASSERT(s) \
131 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
132 PF_HASHROW_ASSERT(_ih); \
134 #else /* !INVARIANTS */
135 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
136 #endif /* INVARIANTS */
138 extern struct mtx pf_unlnkdrules_mtx;
139 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
140 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
142 extern struct rmlock pf_rules_lock;
143 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
144 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
145 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
146 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
147 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
148 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
149 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
150 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
152 extern struct sx pf_end_lock;
155 #define PFLOG_MODVER 1
156 #define PFSYNC_MODVER 1
158 #define PFLOG_MINVER 1
159 #define PFLOG_PREFVER PFLOG_MODVER
160 #define PFLOG_MAXVER 1
161 #define PFSYNC_MINVER 1
162 #define PFSYNC_PREFVER PFSYNC_MODVER
163 #define PFSYNC_MAXVER 1
173 #define PF_INET6_ONLY
179 #define PF_INET_INET6
185 #define PF_INET_INET6
189 /* Both IPv4 and IPv6 */
192 #define PF_AEQ(a, b, c) \
193 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
194 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
195 (a)->addr32[2] == (b)->addr32[2] && \
196 (a)->addr32[1] == (b)->addr32[1] && \
197 (a)->addr32[0] == (b)->addr32[0])) \
199 #define PF_ANEQ(a, b, c) \
200 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
201 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
202 (a)->addr32[1] != (b)->addr32[1] || \
203 (a)->addr32[2] != (b)->addr32[2] || \
204 (a)->addr32[3] != (b)->addr32[3]))) \
206 #define PF_AZERO(a, c) \
207 ((c == AF_INET && !(a)->addr32[0]) || \
208 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
209 !(a)->addr32[2] && !(a)->addr32[3] )) \
211 #define PF_MATCHA(n, a, m, b, f) \
212 pf_match_addr(n, a, m, b, f)
214 #define PF_ACPY(a, b, f) \
217 #define PF_AINC(a, f) \
220 #define PF_POOLMASK(a, b, c, d, f) \
221 pf_poolmask(a, b, c, d, f)
229 #define PF_AEQ(a, b, c) \
230 ((a)->addr32[3] == (b)->addr32[3] && \
231 (a)->addr32[2] == (b)->addr32[2] && \
232 (a)->addr32[1] == (b)->addr32[1] && \
233 (a)->addr32[0] == (b)->addr32[0]) \
235 #define PF_ANEQ(a, b, c) \
236 ((a)->addr32[3] != (b)->addr32[3] || \
237 (a)->addr32[2] != (b)->addr32[2] || \
238 (a)->addr32[1] != (b)->addr32[1] || \
239 (a)->addr32[0] != (b)->addr32[0]) \
241 #define PF_AZERO(a, c) \
242 (!(a)->addr32[0] && \
247 #define PF_MATCHA(n, a, m, b, f) \
248 pf_match_addr(n, a, m, b, f)
250 #define PF_ACPY(a, b, f) \
253 #define PF_AINC(a, f) \
256 #define PF_POOLMASK(a, b, c, d, f) \
257 pf_poolmask(a, b, c, d, f)
264 #define PF_AEQ(a, b, c) \
265 ((a)->addr32[0] == (b)->addr32[0])
267 #define PF_ANEQ(a, b, c) \
268 ((a)->addr32[0] != (b)->addr32[0])
270 #define PF_AZERO(a, c) \
273 #define PF_MATCHA(n, a, m, b, f) \
274 pf_match_addr(n, a, m, b, f)
276 #define PF_ACPY(a, b, f) \
277 (a)->v4.s_addr = (b)->v4.s_addr
279 #define PF_AINC(a, f) \
281 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
284 #define PF_POOLMASK(a, b, c, d, f) \
286 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
287 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
290 #endif /* PF_INET_ONLY */
291 #endif /* PF_INET6_ONLY */
292 #endif /* PF_INET_INET6 */
295 * XXX callers not FIB-aware in our version of pf yet.
296 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
298 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
300 (((aw)->type == PF_ADDR_NOROUTE && \
301 pf_routable((x), (af), NULL, (rtid))) || \
302 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
303 pf_routable((x), (af), (ifp), (rtid))) || \
304 ((aw)->type == PF_ADDR_TABLE && \
305 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
306 ((aw)->type == PF_ADDR_DYNIFTL && \
307 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
308 ((aw)->type == PF_ADDR_RANGE && \
309 !pf_match_addr_range(&(aw)->v.a.addr, \
310 &(aw)->v.a.mask, (x), (af))) || \
311 ((aw)->type == PF_ADDR_ADDRMASK && \
312 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
313 !PF_MATCHA(0, &(aw)->v.a.addr, \
314 &(aw)->v.a.mask, (x), (af))))) != \
318 #define PF_ALGNMNT(off) (((off) % 2) == 0)
330 struct pf_rule_addr {
331 struct pf_addr_wrap addr;
338 struct pf_addr_wrap addr;
339 TAILQ_ENTRY(pf_pooladdr) entries;
340 char ifname[IFNAMSIZ];
344 TAILQ_HEAD(pf_palist, pf_pooladdr);
346 struct pf_poolhashkey {
351 } pfk; /* 128-bit hash key */
352 #define key8 pfk.key8
353 #define key16 pfk.key16
354 #define key32 pfk.key32
358 struct pf_palist list;
359 struct pf_pooladdr *cur;
360 struct pf_poolhashkey key;
361 struct pf_addr counter;
363 u_int16_t proxy_port[2];
367 /* A packed Operating System description for fingerprinting */
368 typedef u_int32_t pf_osfp_t;
369 #define PF_OSFP_ANY ((pf_osfp_t)0)
370 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
371 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
373 struct pf_osfp_entry {
374 SLIST_ENTRY(pf_osfp_entry) fp_entry;
377 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
378 #define PF_OSFP_GENERIC 0x002 /* generic signature */
379 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
380 #define PF_OSFP_LEN 32
381 char fp_class_nm[PF_OSFP_LEN];
382 char fp_version_nm[PF_OSFP_LEN];
383 char fp_subtype_nm[PF_OSFP_LEN];
385 #define PF_OSFP_ENTRY_EQ(a, b) \
386 ((a)->fp_os == (b)->fp_os && \
387 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
388 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
389 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
391 /* handle pf_osfp_t packing */
392 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
393 #define _FP_UNUSED_BITS 1
394 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
395 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
396 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
397 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
398 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
399 ((1 << _FP_CLASS_BITS) - 1); \
400 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
401 ((1 << _FP_VERSION_BITS) - 1);\
402 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
404 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
405 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
406 + _FP_SUBTYPE_BITS); \
407 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
409 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
412 /* the fingerprint of an OSes TCP SYN packet */
413 typedef u_int64_t pf_tcpopts_t;
414 struct pf_os_fingerprint {
415 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
416 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
417 u_int16_t fp_wsize; /* TCP window size */
418 u_int16_t fp_psize; /* ip->ip_len */
419 u_int16_t fp_mss; /* TCP MSS */
421 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
422 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
423 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
424 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
425 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
426 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
427 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
428 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
429 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
430 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
431 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
432 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
433 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
434 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
435 #define PF_OSFP_INET6 0x4000 /* IPv6 */
436 u_int8_t fp_optcnt; /* TCP option count */
437 u_int8_t fp_wscale; /* TCP window scaling */
438 u_int8_t fp_ttl; /* IPv4 TTL */
439 #define PF_OSFP_MAXTTL_OFFSET 40
440 /* TCP options packing */
441 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
442 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
443 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
444 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
445 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
446 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
447 #define PF_OSFP_MAX_OPTS \
448 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
449 / PF_OSFP_TCPOPT_BITS
451 SLIST_ENTRY(pf_os_fingerprint) fp_next;
454 struct pf_osfp_ioctl {
455 struct pf_osfp_entry fp_os;
456 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
457 u_int16_t fp_wsize; /* TCP window size */
458 u_int16_t fp_psize; /* ip->ip_len */
459 u_int16_t fp_mss; /* TCP MSS */
461 u_int8_t fp_optcnt; /* TCP option count */
462 u_int8_t fp_wscale; /* TCP window scaling */
463 u_int8_t fp_ttl; /* IPv4 TTL */
465 int fp_getnum; /* DIOCOSFPGET number */
468 #define PF_ANCHOR_NAME_SIZE 64
471 struct pf_rule_addr src;
472 struct pf_rule_addr dst;
473 #define PF_SKIP_IFP 0
474 #define PF_SKIP_DIR 1
476 #define PF_SKIP_PROTO 3
477 #define PF_SKIP_SRC_ADDR 4
478 #define PF_SKIP_SRC_PORT 5
479 #define PF_SKIP_DST_ADDR 6
480 #define PF_SKIP_DST_PORT 7
481 #define PF_SKIP_COUNT 8
482 union pf_rule_ptr skip[PF_SKIP_COUNT];
483 #define PF_RULE_LABEL_SIZE 64
484 char label[PF_RULE_LABEL_SIZE];
485 char ifname[IFNAMSIZ];
486 char qname[PF_QNAME_SIZE];
487 char pqname[PF_QNAME_SIZE];
488 #define PF_TAG_NAME_SIZE 64
489 char tagname[PF_TAG_NAME_SIZE];
490 char match_tagname[PF_TAG_NAME_SIZE];
492 char overload_tblname[PF_TABLE_NAME_SIZE];
494 TAILQ_ENTRY(pf_rule) entries;
495 struct pf_pool rpool;
497 u_int64_t evaluations;
498 u_int64_t packets[2];
502 struct pf_anchor *anchor;
503 struct pfr_ktable *overload_tbl;
505 pf_osfp_t os_fingerprint;
508 u_int32_t timeout[PFTM_MAX];
509 u_int32_t max_states;
510 u_int32_t max_src_nodes;
511 u_int32_t max_src_states;
512 u_int32_t max_src_conn;
525 counter_u64_t states_cur;
526 counter_u64_t states_tot;
527 counter_u64_t src_nodes;
529 u_int16_t return_icmp;
530 u_int16_t return_icmp6;
534 u_int16_t scrub_flags;
536 struct pf_rule_uid uid;
537 struct pf_rule_gid gid;
546 u_int8_t match_tag_not;
549 #define PF_STATE_NORMAL 0x1
550 #define PF_STATE_MODULATE 0x2
551 #define PF_STATE_SYNPROXY 0x3
565 u_int8_t anchor_relative;
566 u_int8_t anchor_wildcard;
568 #define PF_FLUSH 0x01
569 #define PF_FLUSH_GLOBAL 0x02
571 #define PF_PRIO_ZERO 0xff /* match "prio 0" packets */
572 #define PF_PRIO_MAX 7
574 u_int8_t set_prio[2];
581 uint64_t u_states_cur;
582 uint64_t u_states_tot;
583 uint64_t u_src_nodes;
587 #define PFRULE_DROP 0x0000
588 #define PFRULE_RETURNRST 0x0001
589 #define PFRULE_FRAGMENT 0x0002
590 #define PFRULE_RETURNICMP 0x0004
591 #define PFRULE_RETURN 0x0008
592 #define PFRULE_NOSYNC 0x0010
593 #define PFRULE_SRCTRACK 0x0020 /* track source states */
594 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
595 #define PFRULE_REFS 0x0080 /* rule has references */
598 #define PFRULE_NODF 0x0100
599 #define PFRULE_RANDOMID 0x0800
600 #define PFRULE_REASSEMBLE_TCP 0x1000
601 #define PFRULE_SET_TOS 0x2000
603 /* rule flags again */
604 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
605 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
607 #define PFSTATE_HIWAT 100000 /* default state table size */
608 #define PFSTATE_ADAPT_START 60000 /* default adaptive timeout start */
609 #define PFSTATE_ADAPT_END 120000 /* default adaptive timeout end */
612 struct pf_ksrc_node {
613 LIST_ENTRY(pf_ksrc_node) entry;
615 struct pf_addr raddr;
616 union pf_rule_ptr rule;
619 u_int64_t packets[2];
622 struct pf_threshold conn_rate;
630 struct pf_state_scrub {
631 struct timeval pfss_last; /* time received last packet */
632 u_int32_t pfss_tsecr; /* last echoed timestamp */
633 u_int32_t pfss_tsval; /* largest timestamp */
634 u_int32_t pfss_tsval0; /* original timestamp */
635 u_int16_t pfss_flags;
636 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
637 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
638 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
639 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
640 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
641 u_int8_t pfss_ttl; /* stashed TTL */
643 u_int32_t pfss_ts_mod; /* timestamp modulation */
646 struct pf_state_host {
652 struct pf_state_peer {
653 struct pf_state_scrub *scrub; /* state is scrubbed */
654 u_int32_t seqlo; /* Max sequence number sent */
655 u_int32_t seqhi; /* Max the other end ACKd + win */
656 u_int32_t seqdiff; /* Sequence number modulator */
657 u_int16_t max_win; /* largest window (pre scaling) */
658 u_int16_t mss; /* Maximum segment size option */
659 u_int8_t state; /* active state level */
660 u_int8_t wscale; /* window scaling factor */
661 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
665 /* Keep synced with struct pf_state_key. */
666 struct pf_state_key_cmp {
667 struct pf_addr addr[2];
674 struct pf_state_key {
675 struct pf_addr addr[2];
681 LIST_ENTRY(pf_state_key) entry;
682 TAILQ_HEAD(, pf_state) states[2];
685 /* Keep synced with struct pf_state. */
686 struct pf_state_cmp {
700 TAILQ_ENTRY(pf_state) sync_list;
701 TAILQ_ENTRY(pf_state) key_list[2];
702 LIST_ENTRY(pf_state) entry;
703 struct pf_state_peer src;
704 struct pf_state_peer dst;
705 union pf_rule_ptr rule;
706 union pf_rule_ptr anchor;
707 union pf_rule_ptr nat_rule;
708 struct pf_addr rt_addr;
709 struct pf_state_key *key[2]; /* addresses stack and wire */
711 struct pfi_kif *rt_kif;
712 struct pf_ksrc_node *src_node;
713 struct pf_ksrc_node *nat_src_node;
714 counter_u64_t packets[2];
715 counter_u64_t bytes[2];
718 u_int32_t pfsync_time;
721 u_int8_t state_flags;
722 #define PFSTATE_ALLOWOPTS 0x01
723 #define PFSTATE_SLOPPY 0x02
724 /* was PFSTATE_PFLOW 0x04 */
725 #define PFSTATE_NOSYNC 0x08
726 #define PFSTATE_ACK 0x10
727 #define PFSTATE_SETPRIO 0x0200
728 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
730 u_int8_t sync_state; /* PFSYNC_S_x */
733 u_int8_t sync_updates;
738 * Unified state structures for pulling states out of the kernel
739 * used by pfsync(4) and the pf(4) ioctl.
741 struct pfsync_state_scrub {
742 u_int16_t pfss_flags;
743 u_int8_t pfss_ttl; /* stashed TTL */
744 #define PFSYNC_SCRUB_FLAG_VALID 0x01
746 u_int32_t pfss_ts_mod; /* timestamp modulation */
749 struct pfsync_state_peer {
750 struct pfsync_state_scrub scrub; /* state is scrubbed */
751 u_int32_t seqlo; /* Max sequence number sent */
752 u_int32_t seqhi; /* Max the other end ACKd + win */
753 u_int32_t seqdiff; /* Sequence number modulator */
754 u_int16_t max_win; /* largest window (pre scaling) */
755 u_int16_t mss; /* Maximum segment size option */
756 u_int8_t state; /* active state level */
757 u_int8_t wscale; /* window scaling factor */
761 struct pfsync_state_key {
762 struct pf_addr addr[2];
766 struct pfsync_state {
768 char ifname[IFNAMSIZ];
769 struct pfsync_state_key key[2];
770 struct pfsync_state_peer src;
771 struct pfsync_state_peer dst;
772 struct pf_addr rt_addr;
778 u_int32_t packets[2][2];
779 u_int32_t bytes[2][2];
786 u_int8_t state_flags;
794 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
795 typedef void pfsync_insert_state_t(struct pf_state *);
796 typedef void pfsync_update_state_t(struct pf_state *);
797 typedef void pfsync_delete_state_t(struct pf_state *);
798 typedef void pfsync_clear_states_t(u_int32_t, const char *);
799 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
800 typedef void pfsync_detach_ifnet_t(struct ifnet *);
802 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
803 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
804 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
805 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
806 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
807 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
808 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
809 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
810 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
811 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
812 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
813 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
814 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
816 void pfsync_state_export(struct pfsync_state *,
822 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
823 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
824 struct pf_ruleset *, struct pf_pdesc *, int);
825 extern pflog_packet_t *pflog_packet_ptr;
829 #define PFSYNC_FLAG_SRCNODE 0x04
830 #define PFSYNC_FLAG_NATSRCNODE 0x08
832 /* for copies to/from network byte order */
833 /* ioctl interface also uses network byte order */
834 #define pf_state_peer_hton(s,d) do { \
835 (d)->seqlo = htonl((s)->seqlo); \
836 (d)->seqhi = htonl((s)->seqhi); \
837 (d)->seqdiff = htonl((s)->seqdiff); \
838 (d)->max_win = htons((s)->max_win); \
839 (d)->mss = htons((s)->mss); \
840 (d)->state = (s)->state; \
841 (d)->wscale = (s)->wscale; \
843 (d)->scrub.pfss_flags = \
844 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
845 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
846 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
847 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
851 #define pf_state_peer_ntoh(s,d) do { \
852 (d)->seqlo = ntohl((s)->seqlo); \
853 (d)->seqhi = ntohl((s)->seqhi); \
854 (d)->seqdiff = ntohl((s)->seqdiff); \
855 (d)->max_win = ntohs((s)->max_win); \
856 (d)->mss = ntohs((s)->mss); \
857 (d)->state = (s)->state; \
858 (d)->wscale = (s)->wscale; \
859 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
860 (d)->scrub != NULL) { \
861 (d)->scrub->pfss_flags = \
862 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
863 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
864 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
868 #define pf_state_counter_hton(s,d) do { \
869 d[0] = htonl((s>>32)&0xffffffff); \
870 d[1] = htonl(s&0xffffffff); \
873 #define pf_state_counter_from_pfsync(s) \
874 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
876 #define pf_state_counter_ntoh(s,d) do { \
882 TAILQ_HEAD(pf_rulequeue, pf_rule);
888 struct pf_rulequeue queues[2];
890 struct pf_rulequeue *ptr;
891 struct pf_rule **ptr_array;
896 } rules[PF_RULESET_MAX];
897 struct pf_anchor *anchor;
903 RB_HEAD(pf_anchor_global, pf_anchor);
904 RB_HEAD(pf_anchor_node, pf_anchor);
906 RB_ENTRY(pf_anchor) entry_global;
907 RB_ENTRY(pf_anchor) entry_node;
908 struct pf_anchor *parent;
909 struct pf_anchor_node children;
910 char name[PF_ANCHOR_NAME_SIZE];
911 char path[MAXPATHLEN];
912 struct pf_ruleset ruleset;
913 int refcnt; /* anchor rules */
914 int match; /* XXX: used for pfctl black magic */
916 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
917 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
919 #define PF_RESERVED_ANCHOR "_pf"
921 #define PFR_TFLAG_PERSIST 0x00000001
922 #define PFR_TFLAG_CONST 0x00000002
923 #define PFR_TFLAG_ACTIVE 0x00000004
924 #define PFR_TFLAG_INACTIVE 0x00000008
925 #define PFR_TFLAG_REFERENCED 0x00000010
926 #define PFR_TFLAG_REFDANCHOR 0x00000020
927 #define PFR_TFLAG_COUNTERS 0x00000040
928 /* Adjust masks below when adding flags. */
929 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
932 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
933 PFR_TFLAG_INACTIVE | \
934 PFR_TFLAG_REFERENCED | \
935 PFR_TFLAG_REFDANCHOR)
936 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
939 PFR_TFLAG_INACTIVE | \
940 PFR_TFLAG_REFERENCED | \
941 PFR_TFLAG_REFDANCHOR | \
944 struct pf_anchor_stackframe;
947 char pfrt_anchor[MAXPATHLEN];
948 char pfrt_name[PF_TABLE_NAME_SIZE];
949 u_int32_t pfrt_flags;
953 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
954 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
955 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
959 struct in_addr _pfra_ip4addr;
960 struct in6_addr _pfra_ip6addr;
967 #define pfra_ip4addr pfra_u._pfra_ip4addr
968 #define pfra_ip6addr pfra_u._pfra_ip6addr
970 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
971 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
972 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
973 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
974 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
977 struct pfr_addr pfras_a;
978 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
979 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
983 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
986 struct pfr_table pfrts_t;
987 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
988 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
989 u_int64_t pfrts_match;
990 u_int64_t pfrts_nomatch;
993 int pfrts_refcnt[PFR_REFCNT_MAX];
997 struct pfr_table pfrts_t;
998 counter_u64_t pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
999 counter_u64_t pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1000 counter_u64_t pfrkts_match;
1001 counter_u64_t pfrkts_nomatch;
1004 int pfrkts_refcnt[PFR_REFCNT_MAX];
1006 #define pfrts_name pfrts_t.pfrt_name
1007 #define pfrts_flags pfrts_t.pfrt_flags
1009 #ifndef _SOCKADDR_UNION_DEFINED
1010 #define _SOCKADDR_UNION_DEFINED
1011 union sockaddr_union {
1013 struct sockaddr_in sin;
1014 struct sockaddr_in6 sin6;
1016 #endif /* _SOCKADDR_UNION_DEFINED */
1018 struct pfr_kcounters {
1019 counter_u64_t pfrkc_counters;
1022 #define pfr_kentry_counter(kc, dir, op, t) \
1023 ((kc)->pfrkc_counters + \
1024 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
1026 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1028 struct radix_node pfrke_node[2];
1029 union sockaddr_union pfrke_sa;
1030 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1031 struct pfr_kcounters pfrke_counters;
1035 u_int8_t pfrke_mark;
1038 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1039 RB_HEAD(pfr_ktablehead, pfr_ktable);
1041 struct pfr_ktstats pfrkt_kts;
1042 RB_ENTRY(pfr_ktable) pfrkt_tree;
1043 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1044 struct radix_node_head *pfrkt_ip4;
1045 struct radix_node_head *pfrkt_ip6;
1046 struct pfr_ktable *pfrkt_shadow;
1047 struct pfr_ktable *pfrkt_root;
1048 struct pf_ruleset *pfrkt_rs;
1052 #define pfrkt_t pfrkt_kts.pfrts_t
1053 #define pfrkt_name pfrkt_t.pfrt_name
1054 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1055 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1056 #define pfrkt_flags pfrkt_t.pfrt_flags
1057 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
1058 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
1059 #define pfrkt_packets pfrkt_kts.pfrkts_packets
1060 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
1061 #define pfrkt_match pfrkt_kts.pfrkts_match
1062 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
1063 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
1065 /* keep synced with pfi_kif, used in RB_FIND */
1066 struct pfi_kif_cmp {
1067 char pfik_name[IFNAMSIZ];
1071 char pfik_name[IFNAMSIZ];
1073 RB_ENTRY(pfi_kif) _pfik_tree;
1074 LIST_ENTRY(pfi_kif) _pfik_list;
1076 #define pfik_tree _pfik_glue._pfik_tree
1077 #define pfik_list _pfik_glue._pfik_list
1078 u_int64_t pfik_packets[2][2][2];
1079 u_int64_t pfik_bytes[2][2][2];
1080 u_int32_t pfik_tzero;
1082 struct ifnet *pfik_ifp;
1083 struct ifg_group *pfik_group;
1084 u_int pfik_rulerefs;
1085 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1088 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1089 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1097 u_int64_t tot_len; /* Make Mickey money */
1103 struct icmp6_hdr *icmp6;
1108 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1109 struct pf_addr *src; /* src address */
1110 struct pf_addr *dst; /* dst address */
1113 struct pf_mtag *pf_mtag;
1115 u_int32_t p_len; /* total length of payload */
1118 u_int16_t *proto_sum;
1119 u_int16_t flags; /* Let SCRUB trigger behavior in
1120 * state code. Easier than tags */
1121 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1122 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1126 u_int8_t dir; /* direction */
1127 u_int8_t sidx; /* key index for source */
1128 u_int8_t didx; /* key index for destination */
1131 /* flags for RDR options */
1132 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1133 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1135 /* UDP state enumeration */
1136 #define PFUDPS_NO_TRAFFIC 0
1137 #define PFUDPS_SINGLE 1
1138 #define PFUDPS_MULTIPLE 2
1140 #define PFUDPS_NSTATES 3 /* number of state levels */
1142 #define PFUDPS_NAMES { \
1149 /* Other protocol state enumeration */
1150 #define PFOTHERS_NO_TRAFFIC 0
1151 #define PFOTHERS_SINGLE 1
1152 #define PFOTHERS_MULTIPLE 2
1154 #define PFOTHERS_NSTATES 3 /* number of state levels */
1156 #define PFOTHERS_NAMES { \
1163 #define ACTION_SET(a, x) \
1169 #define REASON_SET(a, x) \
1173 if (x < PFRES_MAX) \
1174 counter_u64_add(V_pf_status.counters[x], 1); \
1178 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1179 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */
1180 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */
1181 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1188 char ifname[IFNAMSIZ];
1189 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1194 struct in_addr ipv4;
1195 struct in6_addr ipv6;
1200 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1201 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1204 * Limit the length of the fragment queue traversal. Remember
1205 * search entry points based on the fragment offset.
1207 #define PF_FRAG_ENTRY_POINTS 16
1210 * The number of entries in the fragment queue must be limited
1211 * to avoid DoS by linear seaching. Instead of a global limit,
1212 * use a limit per entry point. For large packets these sum up.
1214 #define PF_FRAG_ENTRY_LIMIT 64
1217 * ioctl parameter structures
1220 struct pfioc_pooladdr {
1228 char anchor[MAXPATHLEN];
1229 struct pf_pooladdr addr;
1235 u_int32_t pool_ticket;
1237 char anchor[MAXPATHLEN];
1238 char anchor_call[MAXPATHLEN];
1239 struct pf_rule rule;
1242 struct pfioc_natlook {
1243 struct pf_addr saddr;
1244 struct pf_addr daddr;
1245 struct pf_addr rsaddr;
1246 struct pf_addr rdaddr;
1256 struct pfioc_state {
1257 struct pfsync_state state;
1260 struct pfioc_src_node_kill {
1261 sa_family_t psnk_af;
1262 struct pf_rule_addr psnk_src;
1263 struct pf_rule_addr psnk_dst;
1267 struct pfioc_state_kill {
1268 struct pf_state_cmp psk_pfcmp;
1271 struct pf_rule_addr psk_src;
1272 struct pf_rule_addr psk_dst;
1273 char psk_ifname[IFNAMSIZ];
1274 char psk_label[PF_RULE_LABEL_SIZE];
1278 struct pfioc_states {
1282 struct pfsync_state *psu_states;
1284 #define ps_buf ps_u.psu_buf
1285 #define ps_states ps_u.psu_states
1288 struct pfioc_src_nodes {
1292 struct pf_src_node *psu_src_nodes;
1294 #define psn_buf psn_u.psu_buf
1295 #define psn_src_nodes psn_u.psu_src_nodes
1299 char ifname[IFNAMSIZ];
1307 struct pfioc_limit {
1312 struct pfioc_altq_v0 {
1316 struct pf_altq_v0 altq;
1319 struct pfioc_altq_v1 {
1324 * Placed here so code that only uses the above parameters can be
1325 * written entirely in terms of the v0 or v1 type.
1328 struct pf_altq_v1 altq;
1332 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1333 * the latest version of struct pf_altq_vX as it has that struct as a
1336 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1338 struct pfioc_qstats_v0 {
1346 struct pfioc_qstats_v1 {
1353 * Placed here so code that only uses the above parameters can be
1354 * written entirely in terms of the v0 or v1 type.
1356 u_int32_t version; /* Requested version of stats struct */
1359 /* Latest version of struct pfioc_qstats_vX */
1360 #define PFIOC_QSTATS_VERSION 1
1362 struct pfioc_ruleset {
1364 char path[MAXPATHLEN];
1365 char name[PF_ANCHOR_NAME_SIZE];
1368 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1369 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1370 struct pfioc_trans {
1371 int size; /* number of elements */
1372 int esize; /* size of each element in bytes */
1373 struct pfioc_trans_e {
1375 char anchor[MAXPATHLEN];
1380 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1381 #define PFR_FLAG_DUMMY 0x00000002
1382 #define PFR_FLAG_FEEDBACK 0x00000004
1383 #define PFR_FLAG_CLSTATS 0x00000008
1384 #define PFR_FLAG_ADDRSTOO 0x00000010
1385 #define PFR_FLAG_REPLACE 0x00000020
1386 #define PFR_FLAG_ALLRSETS 0x00000040
1387 #define PFR_FLAG_ALLMASK 0x0000007F
1389 #define PFR_FLAG_USERIOCTL 0x10000000
1392 struct pfioc_table {
1393 struct pfr_table pfrio_table;
1402 u_int32_t pfrio_ticket;
1404 #define pfrio_exists pfrio_nadd
1405 #define pfrio_nzero pfrio_nadd
1406 #define pfrio_nmatch pfrio_nadd
1407 #define pfrio_naddr pfrio_size2
1408 #define pfrio_setflag pfrio_size2
1409 #define pfrio_clrflag pfrio_nadd
1411 struct pfioc_iface {
1412 char pfiio_name[IFNAMSIZ];
1424 #define DIOCSTART _IO ('D', 1)
1425 #define DIOCSTOP _IO ('D', 2)
1426 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1427 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1428 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1429 /* XXX cut 8 - 17 */
1430 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1431 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1432 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1433 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1434 #define DIOCCLRSTATUS _IO ('D', 22)
1435 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1436 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1437 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1438 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1439 /* XXX cut 26 - 28 */
1440 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1441 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1442 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1443 #define DIOCCLRRULECTRS _IO ('D', 38)
1444 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1445 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1446 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1447 #define DIOCSTARTALTQ _IO ('D', 42)
1448 #define DIOCSTOPALTQ _IO ('D', 43)
1449 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1450 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1451 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1452 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1453 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1454 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1455 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1456 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1457 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1458 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1459 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1460 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1461 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1462 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1463 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1464 /* XXX cut 55 - 57 */
1465 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1466 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1467 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1468 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1469 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1470 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1471 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1472 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1473 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1474 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1475 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1476 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1477 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1478 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1479 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1480 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1481 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1482 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1483 #define DIOCOSFPFLUSH _IO('D', 78)
1484 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1485 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1486 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1487 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1488 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1489 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1490 #define DIOCCLRSRCNODES _IO('D', 85)
1491 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1492 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1493 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1494 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1495 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1496 struct pf_ifspeed_v0 {
1497 char ifname[IFNAMSIZ];
1501 struct pf_ifspeed_v1 {
1502 char ifname[IFNAMSIZ];
1503 u_int32_t baudrate32;
1504 /* layout identical to struct pf_ifspeed_v0 up to this point */
1508 /* Latest version of struct pf_ifspeed_vX */
1509 #define PF_IFSPEED_VERSION 1
1511 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
1512 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
1515 * Compatibility and convenience macros
1518 #ifdef PFIOC_USE_LATEST
1520 * Maintaining in-tree consumers of the ioctl interface is easier when that
1521 * code can be written in terms old names that refer to the latest interface
1522 * version as that reduces the required changes in the consumers to those
1523 * that are functionally necessary to accommodate a new interface version.
1525 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
1526 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
1527 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
1529 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
1530 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
1531 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
1532 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
1533 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
1534 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
1537 * When building out-of-tree code that is written for the old interface,
1538 * such as may exist in ports for example, resolve the old struct tags and
1539 * ioctl command names to the v0 versions.
1541 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
1542 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
1543 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
1545 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
1546 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
1547 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
1548 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
1549 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
1550 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
1551 #endif /* PFIOC_USE_LATEST */
1552 #endif /* _KERNEL */
1555 LIST_HEAD(pf_ksrc_node_list, pf_ksrc_node);
1557 struct pf_ksrc_node_list nodes;
1562 LIST_HEAD(, pf_state_key) keys;
1567 LIST_HEAD(, pf_state) states;
1571 extern u_long pf_hashmask;
1572 extern u_long pf_srchashmask;
1573 #define PF_HASHSIZ (131072)
1574 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1575 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1576 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1577 #define V_pf_keyhash VNET(pf_keyhash)
1578 #define V_pf_idhash VNET(pf_idhash)
1579 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1580 #define V_pf_srchash VNET(pf_srchash)
1582 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1584 VNET_DECLARE(void *, pf_swi_cookie);
1585 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1587 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1588 #define V_pf_stateid VNET(pf_stateid)
1590 TAILQ_HEAD(pf_altqqueue, pf_altq);
1591 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
1592 #define V_pf_altqs VNET(pf_altqs)
1593 VNET_DECLARE(struct pf_palist, pf_pabuf);
1594 #define V_pf_pabuf VNET(pf_pabuf)
1596 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1597 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1598 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1599 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1600 VNET_DECLARE(int, altqs_inactive_open);
1601 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1602 VNET_DECLARE(u_int32_t, ticket_pabuf);
1603 #define V_ticket_pabuf VNET(ticket_pabuf)
1604 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1605 #define V_pf_altqs_active VNET(pf_altqs_active)
1606 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
1607 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
1608 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1609 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1610 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
1611 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
1613 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1614 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1616 void pf_initialize(void);
1617 void pf_mtag_initialize(void);
1618 void pf_mtag_cleanup(void);
1619 void pf_cleanup(void);
1621 struct pf_mtag *pf_get_mtag(struct mbuf *);
1623 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1625 extern void pf_altq_ifnet_event(struct ifnet *, int);
1627 VNET_DECLARE(uma_zone_t, pf_state_z);
1628 #define V_pf_state_z VNET(pf_state_z)
1629 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1630 #define V_pf_state_key_z VNET(pf_state_key_z)
1631 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1632 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1634 extern void pf_purge_thread(void *);
1635 extern void pf_unload_vnet_purge(void);
1636 extern void pf_intr(void *);
1637 extern void pf_purge_expired_src_nodes(void);
1639 extern int pf_unlink_state(struct pf_state *, u_int);
1640 #define PF_ENTER_LOCKED 0x00000001
1641 #define PF_RETURN_LOCKED 0x00000002
1642 extern int pf_state_insert(struct pfi_kif *,
1643 struct pf_state_key *,
1644 struct pf_state_key *,
1646 extern void pf_free_state(struct pf_state *);
1648 static __inline void
1649 pf_ref_state(struct pf_state *s)
1652 refcount_acquire(&s->refs);
1656 pf_release_state(struct pf_state *s)
1659 if (refcount_release(&s->refs)) {
1666 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1667 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1669 extern struct pf_ksrc_node *pf_find_src_node(struct pf_addr *,
1670 struct pf_rule *, sa_family_t, int);
1671 extern void pf_unlink_src_node(struct pf_ksrc_node *);
1672 extern u_int pf_free_src_nodes(struct pf_ksrc_node_list *);
1673 extern void pf_print_state(struct pf_state *);
1674 extern void pf_print_flags(u_int8_t);
1675 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1677 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1678 u_int16_t, u_int16_t, u_int8_t);
1680 VNET_DECLARE(struct ifnet *, sync_ifp);
1681 #define V_sync_ifp VNET(sync_ifp);
1682 VNET_DECLARE(struct pf_rule, pf_default_rule);
1683 #define V_pf_default_rule VNET(pf_default_rule)
1684 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1686 void pf_free_rule(struct pf_rule *);
1689 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1690 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1695 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1696 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1698 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1699 struct pf_addr *, struct pf_addr *, u_int8_t);
1700 void pf_addr_inc(struct pf_addr *, sa_family_t);
1701 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1704 u_int32_t pf_new_isn(struct pf_state *);
1705 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1707 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1708 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1710 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1711 void pf_patch_16_unaligned(struct mbuf *, u_int16_t *, void *, u_int16_t,
1713 void pf_patch_32_unaligned(struct mbuf *, u_int16_t *, void *, u_int32_t,
1715 void pf_send_deferred_syn(struct pf_state *);
1716 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1717 struct pf_addr *, sa_family_t);
1718 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1719 struct pf_addr *, sa_family_t);
1720 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1722 void pf_normalize_init(void);
1723 void pf_normalize_cleanup(void);
1724 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1726 void pf_normalize_tcp_cleanup(struct pf_state *);
1727 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1728 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1729 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1730 u_short *, struct tcphdr *, struct pf_state *,
1731 struct pf_state_peer *, struct pf_state_peer *, int *);
1733 pf_state_expires(const struct pf_state *);
1734 void pf_purge_expired_fragments(void);
1735 void pf_purge_fragments(uint32_t);
1736 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1738 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1739 struct pf_state_key *pf_alloc_state_key(int);
1740 void pfr_initialize(void);
1741 void pfr_cleanup(void);
1742 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1743 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1744 u_int64_t, int, int, int);
1745 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1746 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1748 pfr_attach_table(struct pf_ruleset *, char *);
1749 void pfr_detach_table(struct pfr_ktable *);
1750 int pfr_clr_tables(struct pfr_table *, int *, int);
1751 int pfr_add_tables(struct pfr_table *, int, int *, int);
1752 int pfr_del_tables(struct pfr_table *, int, int *, int);
1753 int pfr_table_count(struct pfr_table *, int);
1754 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1755 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1756 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1757 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1758 int pfr_clr_addrs(struct pfr_table *, int *, int);
1759 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1760 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1762 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1764 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1765 int *, int *, int *, int, u_int32_t);
1766 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1767 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1768 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1770 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1772 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1773 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1774 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1775 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1776 int *, u_int32_t, int);
1778 MALLOC_DECLARE(PFI_MTYPE);
1779 VNET_DECLARE(struct pfi_kif *, pfi_all);
1780 #define V_pfi_all VNET(pfi_all)
1782 void pfi_initialize(void);
1783 void pfi_initialize_vnet(void);
1784 void pfi_cleanup(void);
1785 void pfi_cleanup_vnet(void);
1786 void pfi_kif_ref(struct pfi_kif *);
1787 void pfi_kif_unref(struct pfi_kif *);
1788 struct pfi_kif *pfi_kif_find(const char *);
1789 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1790 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1791 void pfi_kif_purge(void);
1792 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1794 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1795 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1796 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1797 void pfi_update_status(const char *, struct pf_status *);
1798 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1799 int pfi_set_flags(const char *, int);
1800 int pfi_clear_flags(const char *, int);
1802 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1803 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1804 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
1806 void pf_qid2qname(u_int32_t, char *);
1808 VNET_DECLARE(struct pf_kstatus, pf_status);
1809 #define V_pf_status VNET(pf_status)
1815 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1816 #define V_pf_limits VNET(pf_limits)
1818 #endif /* _KERNEL */
1821 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1822 #define V_pf_anchors VNET(pf_anchors)
1823 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1824 #define V_pf_main_anchor VNET(pf_main_anchor)
1825 #define pf_main_ruleset V_pf_main_anchor.ruleset
1828 /* these ruleset functions can be linked into userland programs (pfctl) */
1829 int pf_get_ruleset_number(u_int8_t);
1830 void pf_init_ruleset(struct pf_ruleset *);
1831 int pf_anchor_setup(struct pf_rule *,
1832 const struct pf_ruleset *, const char *);
1833 int pf_anchor_copyout(const struct pf_ruleset *,
1834 const struct pf_rule *, struct pfioc_rule *);
1835 void pf_anchor_remove(struct pf_rule *);
1836 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1837 struct pf_ruleset *pf_find_ruleset(const char *);
1838 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1839 void pf_rs_initialize(void);
1841 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1842 int pf_osfp_add(struct pf_osfp_ioctl *);
1844 struct pf_osfp_enlist *
1845 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1846 const struct tcphdr *);
1847 #endif /* _KERNEL */
1848 void pf_osfp_flush(void);
1849 int pf_osfp_get(struct pf_osfp_ioctl *);
1850 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1853 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1855 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1856 struct pf_ruleset **, int, struct pf_rule **,
1857 struct pf_rule **, int *);
1858 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1859 struct pf_ruleset **, int, struct pf_rule **,
1860 struct pf_rule **, int *);
1862 int pf_map_addr(u_int8_t, struct pf_rule *,
1863 struct pf_addr *, struct pf_addr *,
1864 struct pf_addr *, struct pf_ksrc_node **);
1865 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1866 int, int, struct pfi_kif *, struct pf_ksrc_node **,
1867 struct pf_state_key **, struct pf_state_key **,
1868 struct pf_addr *, struct pf_addr *,
1869 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1871 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1872 struct pf_addr *, u_int16_t, u_int16_t);
1873 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1874 #endif /* _KERNEL */
1876 #endif /* _NET_PFVAR_H_ */