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>
64 } pfa; /* 128-bit address */
67 #define addr8 pfa.addr8
68 #define addr16 pfa.addr16
69 #define addr32 pfa.addr32
72 #define PFI_AFLAG_NETWORK 0x01
73 #define PFI_AFLAG_BROADCAST 0x02
74 #define PFI_AFLAG_PEER 0x04
75 #define PFI_AFLAG_MODEMASK 0x07
76 #define PFI_AFLAG_NOALIAS 0x08
84 char ifname[IFNAMSIZ];
85 char tblname[PF_TABLE_NAME_SIZE];
88 struct pfi_dynaddr *dyn;
89 struct pfr_ktable *tbl;
93 u_int8_t type; /* PF_ADDR_* */
94 u_int8_t iflags; /* PFI_AFLAG_* */
100 MALLOC_DECLARE(M_PFHASH);
103 TAILQ_ENTRY(pfi_dynaddr) entry;
104 struct pf_addr pfid_addr4;
105 struct pf_addr pfid_mask4;
106 struct pf_addr pfid_addr6;
107 struct pf_addr pfid_mask6;
108 struct pfr_ktable *pfid_kt;
109 struct pfi_kif *pfid_kif;
110 int pfid_net; /* mask or 128 */
111 int pfid_acnt4; /* address count IPv4 */
112 int pfid_acnt6; /* address count IPv6 */
113 sa_family_t pfid_af; /* rule af */
114 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
118 * Address manipulation macros
120 #define HTONL(x) (x) = htonl((__uint32_t)(x))
121 #define HTONS(x) (x) = htons((__uint16_t)(x))
122 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
123 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
127 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
128 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
129 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
131 #define PF_STATE_LOCK(s) \
133 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
134 PF_HASHROW_LOCK(_ih); \
137 #define PF_STATE_UNLOCK(s) \
139 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
140 PF_HASHROW_UNLOCK(_ih); \
144 #define PF_STATE_LOCK_ASSERT(s) \
146 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
147 PF_HASHROW_ASSERT(_ih); \
149 #else /* !INVARIANTS */
150 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
151 #endif /* INVARIANTS */
153 extern struct mtx pf_unlnkdrules_mtx;
154 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
155 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
157 extern struct rmlock pf_rules_lock;
158 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
159 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
160 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
161 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
162 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
163 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
164 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
165 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
167 extern struct sx pf_end_lock;
170 #define PFLOG_MODVER 1
171 #define PFSYNC_MODVER 1
173 #define PFLOG_MINVER 1
174 #define PFLOG_PREFVER PFLOG_MODVER
175 #define PFLOG_MAXVER 1
176 #define PFSYNC_MINVER 1
177 #define PFSYNC_PREFVER PFSYNC_MODVER
178 #define PFSYNC_MAXVER 1
188 #define PF_INET6_ONLY
194 #define PF_INET_INET6
200 #define PF_INET_INET6
204 /* Both IPv4 and IPv6 */
207 #define PF_AEQ(a, b, c) \
208 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
209 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
210 (a)->addr32[2] == (b)->addr32[2] && \
211 (a)->addr32[1] == (b)->addr32[1] && \
212 (a)->addr32[0] == (b)->addr32[0])) \
214 #define PF_ANEQ(a, b, c) \
215 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
216 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
217 (a)->addr32[1] != (b)->addr32[1] || \
218 (a)->addr32[2] != (b)->addr32[2] || \
219 (a)->addr32[3] != (b)->addr32[3]))) \
221 #define PF_AZERO(a, c) \
222 ((c == AF_INET && !(a)->addr32[0]) || \
223 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
224 !(a)->addr32[2] && !(a)->addr32[3] )) \
226 #define PF_MATCHA(n, a, m, b, f) \
227 pf_match_addr(n, a, m, b, f)
229 #define PF_ACPY(a, b, f) \
232 #define PF_AINC(a, f) \
235 #define PF_POOLMASK(a, b, c, d, f) \
236 pf_poolmask(a, b, c, d, f)
244 #define PF_AEQ(a, b, c) \
245 ((a)->addr32[3] == (b)->addr32[3] && \
246 (a)->addr32[2] == (b)->addr32[2] && \
247 (a)->addr32[1] == (b)->addr32[1] && \
248 (a)->addr32[0] == (b)->addr32[0]) \
250 #define PF_ANEQ(a, b, c) \
251 ((a)->addr32[3] != (b)->addr32[3] || \
252 (a)->addr32[2] != (b)->addr32[2] || \
253 (a)->addr32[1] != (b)->addr32[1] || \
254 (a)->addr32[0] != (b)->addr32[0]) \
256 #define PF_AZERO(a, c) \
257 (!(a)->addr32[0] && \
262 #define PF_MATCHA(n, a, m, b, f) \
263 pf_match_addr(n, a, m, b, f)
265 #define PF_ACPY(a, b, f) \
268 #define PF_AINC(a, f) \
271 #define PF_POOLMASK(a, b, c, d, f) \
272 pf_poolmask(a, b, c, d, f)
279 #define PF_AEQ(a, b, c) \
280 ((a)->addr32[0] == (b)->addr32[0])
282 #define PF_ANEQ(a, b, c) \
283 ((a)->addr32[0] != (b)->addr32[0])
285 #define PF_AZERO(a, c) \
288 #define PF_MATCHA(n, a, m, b, f) \
289 pf_match_addr(n, a, m, b, f)
291 #define PF_ACPY(a, b, f) \
292 (a)->v4.s_addr = (b)->v4.s_addr
294 #define PF_AINC(a, f) \
296 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
299 #define PF_POOLMASK(a, b, c, d, f) \
301 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
302 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
305 #endif /* PF_INET_ONLY */
306 #endif /* PF_INET6_ONLY */
307 #endif /* PF_INET_INET6 */
310 * XXX callers not FIB-aware in our version of pf yet.
311 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
313 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
315 (((aw)->type == PF_ADDR_NOROUTE && \
316 pf_routable((x), (af), NULL, (rtid))) || \
317 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
318 pf_routable((x), (af), (ifp), (rtid))) || \
319 ((aw)->type == PF_ADDR_TABLE && \
320 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
321 ((aw)->type == PF_ADDR_DYNIFTL && \
322 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
323 ((aw)->type == PF_ADDR_RANGE && \
324 !pf_match_addr_range(&(aw)->v.a.addr, \
325 &(aw)->v.a.mask, (x), (af))) || \
326 ((aw)->type == PF_ADDR_ADDRMASK && \
327 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
328 !PF_MATCHA(0, &(aw)->v.a.addr, \
329 &(aw)->v.a.mask, (x), (af))))) != \
343 struct pf_rule_addr {
344 struct pf_addr_wrap addr;
351 struct pf_addr_wrap addr;
352 TAILQ_ENTRY(pf_pooladdr) entries;
353 char ifname[IFNAMSIZ];
357 TAILQ_HEAD(pf_palist, pf_pooladdr);
359 struct pf_poolhashkey {
364 } pfk; /* 128-bit hash key */
365 #define key8 pfk.key8
366 #define key16 pfk.key16
367 #define key32 pfk.key32
371 struct pf_palist list;
372 struct pf_pooladdr *cur;
373 struct pf_poolhashkey key;
374 struct pf_addr counter;
376 u_int16_t proxy_port[2];
380 /* A packed Operating System description for fingerprinting */
381 typedef u_int32_t pf_osfp_t;
382 #define PF_OSFP_ANY ((pf_osfp_t)0)
383 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
384 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
386 struct pf_osfp_entry {
387 SLIST_ENTRY(pf_osfp_entry) fp_entry;
390 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
391 #define PF_OSFP_GENERIC 0x002 /* generic signature */
392 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
393 #define PF_OSFP_LEN 32
394 char fp_class_nm[PF_OSFP_LEN];
395 char fp_version_nm[PF_OSFP_LEN];
396 char fp_subtype_nm[PF_OSFP_LEN];
398 #define PF_OSFP_ENTRY_EQ(a, b) \
399 ((a)->fp_os == (b)->fp_os && \
400 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
401 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
402 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
404 /* handle pf_osfp_t packing */
405 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
406 #define _FP_UNUSED_BITS 1
407 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
408 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
409 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
410 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
411 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
412 ((1 << _FP_CLASS_BITS) - 1); \
413 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
414 ((1 << _FP_VERSION_BITS) - 1);\
415 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
417 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
418 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
419 + _FP_SUBTYPE_BITS); \
420 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
422 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
425 /* the fingerprint of an OSes TCP SYN packet */
426 typedef u_int64_t pf_tcpopts_t;
427 struct pf_os_fingerprint {
428 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
429 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
430 u_int16_t fp_wsize; /* TCP window size */
431 u_int16_t fp_psize; /* ip->ip_len */
432 u_int16_t fp_mss; /* TCP MSS */
434 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
435 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
436 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
437 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
438 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
439 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
440 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
441 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
442 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
443 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
444 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
445 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
446 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
447 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
448 #define PF_OSFP_INET6 0x4000 /* IPv6 */
449 u_int8_t fp_optcnt; /* TCP option count */
450 u_int8_t fp_wscale; /* TCP window scaling */
451 u_int8_t fp_ttl; /* IPv4 TTL */
452 #define PF_OSFP_MAXTTL_OFFSET 40
453 /* TCP options packing */
454 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
455 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
456 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
457 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
458 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
459 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
460 #define PF_OSFP_MAX_OPTS \
461 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
462 / PF_OSFP_TCPOPT_BITS
464 SLIST_ENTRY(pf_os_fingerprint) fp_next;
467 struct pf_osfp_ioctl {
468 struct pf_osfp_entry fp_os;
469 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
470 u_int16_t fp_wsize; /* TCP window size */
471 u_int16_t fp_psize; /* ip->ip_len */
472 u_int16_t fp_mss; /* TCP MSS */
474 u_int8_t fp_optcnt; /* TCP option count */
475 u_int8_t fp_wscale; /* TCP window scaling */
476 u_int8_t fp_ttl; /* IPv4 TTL */
478 int fp_getnum; /* DIOCOSFPGET number */
486 #define PF_ANCHOR_NAME_SIZE 64
489 struct pf_rule_addr src;
490 struct pf_rule_addr dst;
491 #define PF_SKIP_IFP 0
492 #define PF_SKIP_DIR 1
494 #define PF_SKIP_PROTO 3
495 #define PF_SKIP_SRC_ADDR 4
496 #define PF_SKIP_SRC_PORT 5
497 #define PF_SKIP_DST_ADDR 6
498 #define PF_SKIP_DST_PORT 7
499 #define PF_SKIP_COUNT 8
500 union pf_rule_ptr skip[PF_SKIP_COUNT];
501 #define PF_RULE_LABEL_SIZE 64
502 char label[PF_RULE_LABEL_SIZE];
503 char ifname[IFNAMSIZ];
504 char qname[PF_QNAME_SIZE];
505 char pqname[PF_QNAME_SIZE];
506 #define PF_TAG_NAME_SIZE 64
507 char tagname[PF_TAG_NAME_SIZE];
508 char match_tagname[PF_TAG_NAME_SIZE];
510 char overload_tblname[PF_TABLE_NAME_SIZE];
512 TAILQ_ENTRY(pf_rule) entries;
513 struct pf_pool rpool;
515 u_int64_t evaluations;
516 u_int64_t packets[2];
520 struct pf_anchor *anchor;
521 struct pfr_ktable *overload_tbl;
523 pf_osfp_t os_fingerprint;
526 u_int32_t timeout[PFTM_MAX];
527 u_int32_t max_states;
528 u_int32_t max_src_nodes;
529 u_int32_t max_src_states;
530 u_int32_t max_src_conn;
543 counter_u64_t states_cur;
544 counter_u64_t states_tot;
545 counter_u64_t src_nodes;
547 u_int16_t return_icmp;
548 u_int16_t return_icmp6;
552 u_int16_t scrub_flags;
554 struct pf_rule_uid uid;
555 struct pf_rule_gid gid;
564 u_int8_t match_tag_not;
567 #define PF_STATE_NORMAL 0x1
568 #define PF_STATE_MODULATE 0x2
569 #define PF_STATE_SYNPROXY 0x3
583 u_int8_t anchor_relative;
584 u_int8_t anchor_wildcard;
586 #define PF_FLUSH 0x01
587 #define PF_FLUSH_GLOBAL 0x02
589 #define PF_PRIO_ZERO 0xff /* match "prio 0" packets */
590 #define PF_PRIO_MAX 7
592 u_int8_t set_prio[2];
599 uint64_t u_states_cur;
600 uint64_t u_states_tot;
601 uint64_t u_src_nodes;
605 #define PFRULE_DROP 0x0000
606 #define PFRULE_RETURNRST 0x0001
607 #define PFRULE_FRAGMENT 0x0002
608 #define PFRULE_RETURNICMP 0x0004
609 #define PFRULE_RETURN 0x0008
610 #define PFRULE_NOSYNC 0x0010
611 #define PFRULE_SRCTRACK 0x0020 /* track source states */
612 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
613 #define PFRULE_REFS 0x0080 /* rule has references */
616 #define PFRULE_NODF 0x0100
617 #define PFRULE_RANDOMID 0x0800
618 #define PFRULE_REASSEMBLE_TCP 0x1000
619 #define PFRULE_SET_TOS 0x2000
621 /* rule flags again */
622 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
623 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
625 #define PFSTATE_HIWAT 100000 /* default state table size */
626 #define PFSTATE_ADAPT_START 60000 /* default adaptive timeout start */
627 #define PFSTATE_ADAPT_END 120000 /* default adaptive timeout end */
629 struct pf_threshold {
631 #define PF_THRESHOLD_MULT 1000
632 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
639 LIST_ENTRY(pf_src_node) entry;
641 struct pf_addr raddr;
642 union pf_rule_ptr rule;
645 u_int64_t packets[2];
648 struct pf_threshold conn_rate;
655 #define PFSNODE_HIWAT 10000 /* default source node table size */
657 struct pf_state_scrub {
658 struct timeval pfss_last; /* time received last packet */
659 u_int32_t pfss_tsecr; /* last echoed timestamp */
660 u_int32_t pfss_tsval; /* largest timestamp */
661 u_int32_t pfss_tsval0; /* original timestamp */
662 u_int16_t pfss_flags;
663 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
664 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
665 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
666 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
667 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
668 u_int8_t pfss_ttl; /* stashed TTL */
670 u_int32_t pfss_ts_mod; /* timestamp modulation */
673 struct pf_state_host {
679 struct pf_state_peer {
680 struct pf_state_scrub *scrub; /* state is scrubbed */
681 u_int32_t seqlo; /* Max sequence number sent */
682 u_int32_t seqhi; /* Max the other end ACKd + win */
683 u_int32_t seqdiff; /* Sequence number modulator */
684 u_int16_t max_win; /* largest window (pre scaling) */
685 u_int16_t mss; /* Maximum segment size option */
686 u_int8_t state; /* active state level */
687 u_int8_t wscale; /* window scaling factor */
688 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
692 /* Keep synced with struct pf_state_key. */
693 struct pf_state_key_cmp {
694 struct pf_addr addr[2];
701 struct pf_state_key {
702 struct pf_addr addr[2];
708 LIST_ENTRY(pf_state_key) entry;
709 TAILQ_HEAD(, pf_state) states[2];
712 /* Keep synced with struct pf_state. */
713 struct pf_state_cmp {
727 TAILQ_ENTRY(pf_state) sync_list;
728 TAILQ_ENTRY(pf_state) key_list[2];
729 LIST_ENTRY(pf_state) entry;
730 struct pf_state_peer src;
731 struct pf_state_peer dst;
732 union pf_rule_ptr rule;
733 union pf_rule_ptr anchor;
734 union pf_rule_ptr nat_rule;
735 struct pf_addr rt_addr;
736 struct pf_state_key *key[2]; /* addresses stack and wire */
738 struct pfi_kif *rt_kif;
739 struct pf_src_node *src_node;
740 struct pf_src_node *nat_src_node;
741 u_int64_t packets[2];
745 u_int32_t pfsync_time;
748 u_int8_t state_flags;
749 #define PFSTATE_ALLOWOPTS 0x01
750 #define PFSTATE_SLOPPY 0x02
751 /* was PFSTATE_PFLOW 0x04 */
752 #define PFSTATE_NOSYNC 0x08
753 #define PFSTATE_ACK 0x10
754 #define PFSTATE_SETPRIO 0x0200
755 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
757 u_int8_t sync_state; /* PFSYNC_S_x */
760 u_int8_t sync_updates;
765 * Unified state structures for pulling states out of the kernel
766 * used by pfsync(4) and the pf(4) ioctl.
768 struct pfsync_state_scrub {
769 u_int16_t pfss_flags;
770 u_int8_t pfss_ttl; /* stashed TTL */
771 #define PFSYNC_SCRUB_FLAG_VALID 0x01
773 u_int32_t pfss_ts_mod; /* timestamp modulation */
776 struct pfsync_state_peer {
777 struct pfsync_state_scrub scrub; /* state is scrubbed */
778 u_int32_t seqlo; /* Max sequence number sent */
779 u_int32_t seqhi; /* Max the other end ACKd + win */
780 u_int32_t seqdiff; /* Sequence number modulator */
781 u_int16_t max_win; /* largest window (pre scaling) */
782 u_int16_t mss; /* Maximum segment size option */
783 u_int8_t state; /* active state level */
784 u_int8_t wscale; /* window scaling factor */
788 struct pfsync_state_key {
789 struct pf_addr addr[2];
793 struct pfsync_state {
795 char ifname[IFNAMSIZ];
796 struct pfsync_state_key key[2];
797 struct pfsync_state_peer src;
798 struct pfsync_state_peer dst;
799 struct pf_addr rt_addr;
805 u_int32_t packets[2][2];
806 u_int32_t bytes[2][2];
813 u_int8_t state_flags;
821 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
822 typedef void pfsync_insert_state_t(struct pf_state *);
823 typedef void pfsync_update_state_t(struct pf_state *);
824 typedef void pfsync_delete_state_t(struct pf_state *);
825 typedef void pfsync_clear_states_t(u_int32_t, const char *);
826 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
827 typedef void pfsync_detach_ifnet_t(struct ifnet *);
829 VNET_DECLARE(pfsync_state_import_t *, pfsync_state_import_ptr);
830 #define V_pfsync_state_import_ptr VNET(pfsync_state_import_ptr)
831 VNET_DECLARE(pfsync_insert_state_t *, pfsync_insert_state_ptr);
832 #define V_pfsync_insert_state_ptr VNET(pfsync_insert_state_ptr)
833 VNET_DECLARE(pfsync_update_state_t *, pfsync_update_state_ptr);
834 #define V_pfsync_update_state_ptr VNET(pfsync_update_state_ptr)
835 VNET_DECLARE(pfsync_delete_state_t *, pfsync_delete_state_ptr);
836 #define V_pfsync_delete_state_ptr VNET(pfsync_delete_state_ptr)
837 VNET_DECLARE(pfsync_clear_states_t *, pfsync_clear_states_ptr);
838 #define V_pfsync_clear_states_ptr VNET(pfsync_clear_states_ptr)
839 VNET_DECLARE(pfsync_defer_t *, pfsync_defer_ptr);
840 #define V_pfsync_defer_ptr VNET(pfsync_defer_ptr)
841 extern pfsync_detach_ifnet_t *pfsync_detach_ifnet_ptr;
843 void pfsync_state_export(struct pfsync_state *,
849 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
850 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
851 struct pf_ruleset *, struct pf_pdesc *, int);
852 extern pflog_packet_t *pflog_packet_ptr;
856 #define PFSYNC_FLAG_SRCNODE 0x04
857 #define PFSYNC_FLAG_NATSRCNODE 0x08
859 /* for copies to/from network byte order */
860 /* ioctl interface also uses network byte order */
861 #define pf_state_peer_hton(s,d) do { \
862 (d)->seqlo = htonl((s)->seqlo); \
863 (d)->seqhi = htonl((s)->seqhi); \
864 (d)->seqdiff = htonl((s)->seqdiff); \
865 (d)->max_win = htons((s)->max_win); \
866 (d)->mss = htons((s)->mss); \
867 (d)->state = (s)->state; \
868 (d)->wscale = (s)->wscale; \
870 (d)->scrub.pfss_flags = \
871 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
872 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
873 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
874 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
878 #define pf_state_peer_ntoh(s,d) do { \
879 (d)->seqlo = ntohl((s)->seqlo); \
880 (d)->seqhi = ntohl((s)->seqhi); \
881 (d)->seqdiff = ntohl((s)->seqdiff); \
882 (d)->max_win = ntohs((s)->max_win); \
883 (d)->mss = ntohs((s)->mss); \
884 (d)->state = (s)->state; \
885 (d)->wscale = (s)->wscale; \
886 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
887 (d)->scrub != NULL) { \
888 (d)->scrub->pfss_flags = \
889 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
890 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
891 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
895 #define pf_state_counter_hton(s,d) do { \
896 d[0] = htonl((s>>32)&0xffffffff); \
897 d[1] = htonl(s&0xffffffff); \
900 #define pf_state_counter_from_pfsync(s) \
901 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
903 #define pf_state_counter_ntoh(s,d) do { \
909 TAILQ_HEAD(pf_rulequeue, pf_rule);
915 struct pf_rulequeue queues[2];
917 struct pf_rulequeue *ptr;
918 struct pf_rule **ptr_array;
923 } rules[PF_RULESET_MAX];
924 struct pf_anchor *anchor;
930 RB_HEAD(pf_anchor_global, pf_anchor);
931 RB_HEAD(pf_anchor_node, pf_anchor);
933 RB_ENTRY(pf_anchor) entry_global;
934 RB_ENTRY(pf_anchor) entry_node;
935 struct pf_anchor *parent;
936 struct pf_anchor_node children;
937 char name[PF_ANCHOR_NAME_SIZE];
938 char path[MAXPATHLEN];
939 struct pf_ruleset ruleset;
940 int refcnt; /* anchor rules */
941 int match; /* XXX: used for pfctl black magic */
943 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
944 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
946 #define PF_RESERVED_ANCHOR "_pf"
948 #define PFR_TFLAG_PERSIST 0x00000001
949 #define PFR_TFLAG_CONST 0x00000002
950 #define PFR_TFLAG_ACTIVE 0x00000004
951 #define PFR_TFLAG_INACTIVE 0x00000008
952 #define PFR_TFLAG_REFERENCED 0x00000010
953 #define PFR_TFLAG_REFDANCHOR 0x00000020
954 #define PFR_TFLAG_COUNTERS 0x00000040
955 /* Adjust masks below when adding flags. */
956 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
959 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
960 PFR_TFLAG_INACTIVE | \
961 PFR_TFLAG_REFERENCED | \
962 PFR_TFLAG_REFDANCHOR)
963 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
966 PFR_TFLAG_INACTIVE | \
967 PFR_TFLAG_REFERENCED | \
968 PFR_TFLAG_REFDANCHOR | \
971 struct pf_anchor_stackframe;
974 char pfrt_anchor[MAXPATHLEN];
975 char pfrt_name[PF_TABLE_NAME_SIZE];
976 u_int32_t pfrt_flags;
980 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
981 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
982 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
986 struct in_addr _pfra_ip4addr;
987 struct in6_addr _pfra_ip6addr;
994 #define pfra_ip4addr pfra_u._pfra_ip4addr
995 #define pfra_ip6addr pfra_u._pfra_ip6addr
997 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
998 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
999 enum { PFR_TYPE_PACKETS, PFR_TYPE_BYTES, PFR_TYPE_MAX };
1000 #define PFR_NUM_COUNTERS (PFR_DIR_MAX * PFR_OP_ADDR_MAX * PFR_TYPE_MAX)
1001 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1004 struct pfr_addr pfras_a;
1005 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1006 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1010 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1013 struct pfr_table pfrts_t;
1014 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1015 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1016 u_int64_t pfrts_match;
1017 u_int64_t pfrts_nomatch;
1020 int pfrts_refcnt[PFR_REFCNT_MAX];
1023 struct pfr_ktstats {
1024 struct pfr_table pfrts_t;
1025 counter_u64_t pfrkts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1026 counter_u64_t pfrkts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1027 counter_u64_t pfrkts_match;
1028 counter_u64_t pfrkts_nomatch;
1031 int pfrkts_refcnt[PFR_REFCNT_MAX];
1033 #define pfrts_name pfrts_t.pfrt_name
1034 #define pfrts_flags pfrts_t.pfrt_flags
1036 #ifndef _SOCKADDR_UNION_DEFINED
1037 #define _SOCKADDR_UNION_DEFINED
1038 union sockaddr_union {
1040 struct sockaddr_in sin;
1041 struct sockaddr_in6 sin6;
1043 #endif /* _SOCKADDR_UNION_DEFINED */
1045 struct pfr_kcounters {
1046 counter_u64_t pfrkc_counters;
1049 #define pfr_kentry_counter(kc, dir, op, t) \
1050 ((kc)->pfrkc_counters + \
1051 (dir) * PFR_OP_ADDR_MAX * PFR_TYPE_MAX + (op) * PFR_TYPE_MAX + (t))
1053 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1055 struct radix_node pfrke_node[2];
1056 union sockaddr_union pfrke_sa;
1057 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1058 struct pfr_kcounters pfrke_counters;
1062 u_int8_t pfrke_mark;
1065 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1066 RB_HEAD(pfr_ktablehead, pfr_ktable);
1068 struct pfr_ktstats pfrkt_kts;
1069 RB_ENTRY(pfr_ktable) pfrkt_tree;
1070 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1071 struct radix_node_head *pfrkt_ip4;
1072 struct radix_node_head *pfrkt_ip6;
1073 struct pfr_ktable *pfrkt_shadow;
1074 struct pfr_ktable *pfrkt_root;
1075 struct pf_ruleset *pfrkt_rs;
1079 #define pfrkt_t pfrkt_kts.pfrts_t
1080 #define pfrkt_name pfrkt_t.pfrt_name
1081 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1082 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1083 #define pfrkt_flags pfrkt_t.pfrt_flags
1084 #define pfrkt_cnt pfrkt_kts.pfrkts_cnt
1085 #define pfrkt_refcnt pfrkt_kts.pfrkts_refcnt
1086 #define pfrkt_packets pfrkt_kts.pfrkts_packets
1087 #define pfrkt_bytes pfrkt_kts.pfrkts_bytes
1088 #define pfrkt_match pfrkt_kts.pfrkts_match
1089 #define pfrkt_nomatch pfrkt_kts.pfrkts_nomatch
1090 #define pfrkt_tzero pfrkt_kts.pfrkts_tzero
1092 /* keep synced with pfi_kif, used in RB_FIND */
1093 struct pfi_kif_cmp {
1094 char pfik_name[IFNAMSIZ];
1098 char pfik_name[IFNAMSIZ];
1100 RB_ENTRY(pfi_kif) _pfik_tree;
1101 LIST_ENTRY(pfi_kif) _pfik_list;
1103 #define pfik_tree _pfik_glue._pfik_tree
1104 #define pfik_list _pfik_glue._pfik_list
1105 u_int64_t pfik_packets[2][2][2];
1106 u_int64_t pfik_bytes[2][2][2];
1107 u_int32_t pfik_tzero;
1109 struct ifnet *pfik_ifp;
1110 struct ifg_group *pfik_group;
1111 u_int pfik_rulerefs;
1112 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1115 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1116 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1124 u_int64_t tot_len; /* Make Mickey money */
1130 struct icmp6_hdr *icmp6;
1135 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1136 struct pf_addr *src; /* src address */
1137 struct pf_addr *dst; /* dst address */
1140 struct pf_mtag *pf_mtag;
1142 u_int32_t p_len; /* total length of payload */
1145 u_int16_t *proto_sum;
1146 u_int16_t flags; /* Let SCRUB trigger behavior in
1147 * state code. Easier than tags */
1148 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1149 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1153 u_int8_t dir; /* direction */
1154 u_int8_t sidx; /* key index for source */
1155 u_int8_t didx; /* key index for destination */
1158 /* flags for RDR options */
1159 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1160 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1162 /* UDP state enumeration */
1163 #define PFUDPS_NO_TRAFFIC 0
1164 #define PFUDPS_SINGLE 1
1165 #define PFUDPS_MULTIPLE 2
1167 #define PFUDPS_NSTATES 3 /* number of state levels */
1169 #define PFUDPS_NAMES { \
1176 /* Other protocol state enumeration */
1177 #define PFOTHERS_NO_TRAFFIC 0
1178 #define PFOTHERS_SINGLE 1
1179 #define PFOTHERS_MULTIPLE 2
1181 #define PFOTHERS_NSTATES 3 /* number of state levels */
1183 #define PFOTHERS_NAMES { \
1190 #define ACTION_SET(a, x) \
1196 #define REASON_SET(a, x) \
1200 if (x < PFRES_MAX) \
1201 counter_u64_add(V_pf_status.counters[x], 1); \
1205 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1206 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */
1207 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */
1208 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1215 char ifname[IFNAMSIZ];
1216 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1221 struct in_addr ipv4;
1222 struct in6_addr ipv6;
1227 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1228 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1231 * Limit the length of the fragment queue traversal. Remember
1232 * search entry points based on the fragment offset.
1234 #define PF_FRAG_ENTRY_POINTS 16
1237 * The number of entries in the fragment queue must be limited
1238 * to avoid DoS by linear seaching. Instead of a global limit,
1239 * use a limit per entry point. For large packets these sum up.
1241 #define PF_FRAG_ENTRY_LIMIT 64
1244 * ioctl parameter structures
1247 struct pfioc_pooladdr {
1255 char anchor[MAXPATHLEN];
1256 struct pf_pooladdr addr;
1262 u_int32_t pool_ticket;
1264 char anchor[MAXPATHLEN];
1265 char anchor_call[MAXPATHLEN];
1266 struct pf_rule rule;
1269 struct pfioc_natlook {
1270 struct pf_addr saddr;
1271 struct pf_addr daddr;
1272 struct pf_addr rsaddr;
1273 struct pf_addr rdaddr;
1283 struct pfioc_state {
1284 struct pfsync_state state;
1287 struct pfioc_src_node_kill {
1288 sa_family_t psnk_af;
1289 struct pf_rule_addr psnk_src;
1290 struct pf_rule_addr psnk_dst;
1294 struct pfioc_state_kill {
1295 struct pf_state_cmp psk_pfcmp;
1298 struct pf_rule_addr psk_src;
1299 struct pf_rule_addr psk_dst;
1300 char psk_ifname[IFNAMSIZ];
1301 char psk_label[PF_RULE_LABEL_SIZE];
1305 struct pfioc_states {
1309 struct pfsync_state *psu_states;
1311 #define ps_buf ps_u.psu_buf
1312 #define ps_states ps_u.psu_states
1315 struct pfioc_src_nodes {
1319 struct pf_src_node *psu_src_nodes;
1321 #define psn_buf psn_u.psu_buf
1322 #define psn_src_nodes psn_u.psu_src_nodes
1326 char ifname[IFNAMSIZ];
1334 struct pfioc_limit {
1339 struct pfioc_altq_v0 {
1343 struct pf_altq_v0 altq;
1346 struct pfioc_altq_v1 {
1351 * Placed here so code that only uses the above parameters can be
1352 * written entirely in terms of the v0 or v1 type.
1355 struct pf_altq_v1 altq;
1359 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1360 * the latest version of struct pf_altq_vX as it has that struct as a
1363 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1365 struct pfioc_qstats_v0 {
1373 struct pfioc_qstats_v1 {
1380 * Placed here so code that only uses the above parameters can be
1381 * written entirely in terms of the v0 or v1 type.
1383 u_int32_t version; /* Requested version of stats struct */
1386 /* Latest version of struct pfioc_qstats_vX */
1387 #define PFIOC_QSTATS_VERSION 1
1389 struct pfioc_ruleset {
1391 char path[MAXPATHLEN];
1392 char name[PF_ANCHOR_NAME_SIZE];
1395 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1396 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1397 struct pfioc_trans {
1398 int size; /* number of elements */
1399 int esize; /* size of each element in bytes */
1400 struct pfioc_trans_e {
1402 char anchor[MAXPATHLEN];
1407 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1408 #define PFR_FLAG_DUMMY 0x00000002
1409 #define PFR_FLAG_FEEDBACK 0x00000004
1410 #define PFR_FLAG_CLSTATS 0x00000008
1411 #define PFR_FLAG_ADDRSTOO 0x00000010
1412 #define PFR_FLAG_REPLACE 0x00000020
1413 #define PFR_FLAG_ALLRSETS 0x00000040
1414 #define PFR_FLAG_ALLMASK 0x0000007F
1416 #define PFR_FLAG_USERIOCTL 0x10000000
1419 struct pfioc_table {
1420 struct pfr_table pfrio_table;
1429 u_int32_t pfrio_ticket;
1431 #define pfrio_exists pfrio_nadd
1432 #define pfrio_nzero pfrio_nadd
1433 #define pfrio_nmatch pfrio_nadd
1434 #define pfrio_naddr pfrio_size2
1435 #define pfrio_setflag pfrio_size2
1436 #define pfrio_clrflag pfrio_nadd
1438 struct pfioc_iface {
1439 char pfiio_name[IFNAMSIZ];
1451 #define DIOCSTART _IO ('D', 1)
1452 #define DIOCSTOP _IO ('D', 2)
1453 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1454 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1455 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1456 /* XXX cut 8 - 17 */
1457 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1458 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1459 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1460 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1461 #define DIOCCLRSTATUS _IO ('D', 22)
1462 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1463 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1464 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1465 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1466 /* XXX cut 26 - 28 */
1467 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1468 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1469 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1470 #define DIOCCLRRULECTRS _IO ('D', 38)
1471 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1472 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1473 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1474 #define DIOCSTARTALTQ _IO ('D', 42)
1475 #define DIOCSTOPALTQ _IO ('D', 43)
1476 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1477 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1478 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1479 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1480 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1481 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1482 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1483 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1484 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1485 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1486 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1487 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1488 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1489 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1490 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1491 /* XXX cut 55 - 57 */
1492 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1493 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1494 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1495 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1496 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1497 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1498 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1499 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1500 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1501 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1502 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1503 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1504 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1505 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1506 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1507 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1508 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1509 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1510 #define DIOCOSFPFLUSH _IO('D', 78)
1511 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1512 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1513 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1514 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1515 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1516 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1517 #define DIOCCLRSRCNODES _IO('D', 85)
1518 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1519 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1520 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1521 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1522 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1523 struct pf_ifspeed_v0 {
1524 char ifname[IFNAMSIZ];
1528 struct pf_ifspeed_v1 {
1529 char ifname[IFNAMSIZ];
1530 u_int32_t baudrate32;
1531 /* layout identical to struct pf_ifspeed_v0 up to this point */
1535 /* Latest version of struct pf_ifspeed_vX */
1536 #define PF_IFSPEED_VERSION 1
1538 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
1539 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
1542 * Compatibility and convenience macros
1545 #ifdef PFIOC_USE_LATEST
1547 * Maintaining in-tree consumers of the ioctl interface is easier when that
1548 * code can be written in terms old names that refer to the latest interface
1549 * version as that reduces the required changes in the consumers to those
1550 * that are functionally necessary to accommodate a new interface version.
1552 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
1553 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
1554 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
1556 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
1557 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
1558 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
1559 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
1560 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
1561 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
1564 * When building out-of-tree code that is written for the old interface,
1565 * such as may exist in ports for example, resolve the old struct tags and
1566 * ioctl command names to the v0 versions.
1568 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
1569 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
1570 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
1572 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
1573 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
1574 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
1575 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
1576 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
1577 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
1578 #endif /* PFIOC_USE_LATEST */
1579 #endif /* _KERNEL */
1582 LIST_HEAD(pf_src_node_list, pf_src_node);
1584 struct pf_src_node_list nodes;
1589 LIST_HEAD(, pf_state_key) keys;
1594 LIST_HEAD(, pf_state) states;
1598 extern u_long pf_hashmask;
1599 extern u_long pf_srchashmask;
1600 #define PF_HASHSIZ (131072)
1601 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1602 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1603 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1604 #define V_pf_keyhash VNET(pf_keyhash)
1605 #define V_pf_idhash VNET(pf_idhash)
1606 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1607 #define V_pf_srchash VNET(pf_srchash)
1609 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1611 VNET_DECLARE(void *, pf_swi_cookie);
1612 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1614 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1615 #define V_pf_stateid VNET(pf_stateid)
1617 TAILQ_HEAD(pf_altqqueue, pf_altq);
1618 VNET_DECLARE(struct pf_altqqueue, pf_altqs[4]);
1619 #define V_pf_altqs VNET(pf_altqs)
1620 VNET_DECLARE(struct pf_palist, pf_pabuf);
1621 #define V_pf_pabuf VNET(pf_pabuf)
1623 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1624 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1625 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1626 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1627 VNET_DECLARE(int, altqs_inactive_open);
1628 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1629 VNET_DECLARE(u_int32_t, ticket_pabuf);
1630 #define V_ticket_pabuf VNET(ticket_pabuf)
1631 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1632 #define V_pf_altqs_active VNET(pf_altqs_active)
1633 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_active);
1634 #define V_pf_altq_ifs_active VNET(pf_altq_ifs_active)
1635 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1636 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1637 VNET_DECLARE(struct pf_altqqueue *, pf_altq_ifs_inactive);
1638 #define V_pf_altq_ifs_inactive VNET(pf_altq_ifs_inactive)
1640 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1641 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1643 void pf_initialize(void);
1644 void pf_mtag_initialize(void);
1645 void pf_mtag_cleanup(void);
1646 void pf_cleanup(void);
1648 struct pf_mtag *pf_get_mtag(struct mbuf *);
1650 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1652 extern void pf_altq_ifnet_event(struct ifnet *, int);
1654 VNET_DECLARE(uma_zone_t, pf_state_z);
1655 #define V_pf_state_z VNET(pf_state_z)
1656 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1657 #define V_pf_state_key_z VNET(pf_state_key_z)
1658 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1659 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1661 extern void pf_purge_thread(void *);
1662 extern void pf_unload_vnet_purge(void);
1663 extern void pf_intr(void *);
1664 extern void pf_purge_expired_src_nodes(void);
1666 extern int pf_unlink_state(struct pf_state *, u_int);
1667 #define PF_ENTER_LOCKED 0x00000001
1668 #define PF_RETURN_LOCKED 0x00000002
1669 extern int pf_state_insert(struct pfi_kif *,
1670 struct pf_state_key *,
1671 struct pf_state_key *,
1673 extern void pf_free_state(struct pf_state *);
1675 static __inline void
1676 pf_ref_state(struct pf_state *s)
1679 refcount_acquire(&s->refs);
1683 pf_release_state(struct pf_state *s)
1686 if (refcount_release(&s->refs)) {
1693 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1694 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1696 extern struct pf_src_node *pf_find_src_node(struct pf_addr *,
1697 struct pf_rule *, sa_family_t, int);
1698 extern void pf_unlink_src_node(struct pf_src_node *);
1699 extern u_int pf_free_src_nodes(struct pf_src_node_list *);
1700 extern void pf_print_state(struct pf_state *);
1701 extern void pf_print_flags(u_int8_t);
1702 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1704 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1705 u_int16_t, u_int16_t, u_int8_t);
1707 VNET_DECLARE(struct ifnet *, sync_ifp);
1708 #define V_sync_ifp VNET(sync_ifp);
1709 VNET_DECLARE(struct pf_rule, pf_default_rule);
1710 #define V_pf_default_rule VNET(pf_default_rule)
1711 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1713 void pf_free_rule(struct pf_rule *);
1716 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1717 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1722 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1723 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1725 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1726 struct pf_addr *, struct pf_addr *, u_int8_t);
1727 void pf_addr_inc(struct pf_addr *, sa_family_t);
1728 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1731 u_int32_t pf_new_isn(struct pf_state *);
1732 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1734 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1735 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1737 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1738 void pf_send_deferred_syn(struct pf_state *);
1739 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1740 struct pf_addr *, sa_family_t);
1741 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1742 struct pf_addr *, sa_family_t);
1743 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1745 void pf_normalize_init(void);
1746 void pf_normalize_cleanup(void);
1747 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1749 void pf_normalize_tcp_cleanup(struct pf_state *);
1750 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1751 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1752 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1753 u_short *, struct tcphdr *, struct pf_state *,
1754 struct pf_state_peer *, struct pf_state_peer *, int *);
1756 pf_state_expires(const struct pf_state *);
1757 void pf_purge_expired_fragments(void);
1758 void pf_purge_fragments(uint32_t);
1759 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1761 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1762 struct pf_state_key *pf_alloc_state_key(int);
1763 void pfr_initialize(void);
1764 void pfr_cleanup(void);
1765 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1766 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1767 u_int64_t, int, int, int);
1768 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1769 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1771 pfr_attach_table(struct pf_ruleset *, char *);
1772 void pfr_detach_table(struct pfr_ktable *);
1773 int pfr_clr_tables(struct pfr_table *, int *, int);
1774 int pfr_add_tables(struct pfr_table *, int, int *, int);
1775 int pfr_del_tables(struct pfr_table *, int, int *, int);
1776 int pfr_table_count(struct pfr_table *, int);
1777 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1778 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1779 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1780 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1781 int pfr_clr_addrs(struct pfr_table *, int *, int);
1782 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1783 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1785 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1787 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1788 int *, int *, int *, int, u_int32_t);
1789 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1790 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1791 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1793 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1795 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1796 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1797 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1798 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1799 int *, u_int32_t, int);
1801 MALLOC_DECLARE(PFI_MTYPE);
1802 VNET_DECLARE(struct pfi_kif *, pfi_all);
1803 #define V_pfi_all VNET(pfi_all)
1805 void pfi_initialize(void);
1806 void pfi_initialize_vnet(void);
1807 void pfi_cleanup(void);
1808 void pfi_cleanup_vnet(void);
1809 void pfi_kif_ref(struct pfi_kif *);
1810 void pfi_kif_unref(struct pfi_kif *);
1811 struct pfi_kif *pfi_kif_find(const char *);
1812 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1813 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1814 void pfi_kif_purge(void);
1815 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1817 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1818 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1819 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1820 void pfi_update_status(const char *, struct pf_status *);
1821 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1822 int pfi_set_flags(const char *, int);
1823 int pfi_clear_flags(const char *, int);
1825 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1826 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1827 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
1829 void pf_qid2qname(u_int32_t, char *);
1831 VNET_DECLARE(struct pf_kstatus, pf_status);
1832 #define V_pf_status VNET(pf_status)
1838 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1839 #define V_pf_limits VNET(pf_limits)
1841 #endif /* _KERNEL */
1844 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1845 #define V_pf_anchors VNET(pf_anchors)
1846 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1847 #define V_pf_main_anchor VNET(pf_main_anchor)
1848 #define pf_main_ruleset V_pf_main_anchor.ruleset
1851 /* these ruleset functions can be linked into userland programs (pfctl) */
1852 int pf_get_ruleset_number(u_int8_t);
1853 void pf_init_ruleset(struct pf_ruleset *);
1854 int pf_anchor_setup(struct pf_rule *,
1855 const struct pf_ruleset *, const char *);
1856 int pf_anchor_copyout(const struct pf_ruleset *,
1857 const struct pf_rule *, struct pfioc_rule *);
1858 void pf_anchor_remove(struct pf_rule *);
1859 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1860 struct pf_ruleset *pf_find_ruleset(const char *);
1861 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1862 void pf_rs_initialize(void);
1864 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1865 int pf_osfp_add(struct pf_osfp_ioctl *);
1867 struct pf_osfp_enlist *
1868 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1869 const struct tcphdr *);
1870 #endif /* _KERNEL */
1871 void pf_osfp_flush(void);
1872 int pf_osfp_get(struct pf_osfp_ioctl *);
1873 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1876 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1878 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1879 struct pf_ruleset **, int, struct pf_rule **,
1880 struct pf_rule **, int *);
1881 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1882 struct pf_ruleset **, int, struct pf_rule **,
1883 struct pf_rule **, int *);
1885 int pf_map_addr(u_int8_t, struct pf_rule *,
1886 struct pf_addr *, struct pf_addr *,
1887 struct pf_addr *, struct pf_src_node **);
1888 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1889 int, int, struct pfi_kif *, struct pf_src_node **,
1890 struct pf_state_key **, struct pf_state_key **,
1891 struct pf_addr *, struct pf_addr *,
1892 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1894 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1895 struct pf_addr *, u_int16_t, u_int16_t);
1896 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1897 #endif /* _KERNEL */
1899 #endif /* _NET_PFVAR_H_ */