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>
45 #include <sys/rmlock.h>
49 #include <net/radix.h>
50 #include <netinet/in.h>
52 #include <netpfil/pf/pf.h>
53 #include <netpfil/pf/pf_altq.h>
54 #include <netpfil/pf/pf_mtag.h>
63 } pfa; /* 128-bit address */
66 #define addr8 pfa.addr8
67 #define addr16 pfa.addr16
68 #define addr32 pfa.addr32
71 #define PFI_AFLAG_NETWORK 0x01
72 #define PFI_AFLAG_BROADCAST 0x02
73 #define PFI_AFLAG_PEER 0x04
74 #define PFI_AFLAG_MODEMASK 0x07
75 #define PFI_AFLAG_NOALIAS 0x08
83 char ifname[IFNAMSIZ];
84 char tblname[PF_TABLE_NAME_SIZE];
87 struct pfi_dynaddr *dyn;
88 struct pfr_ktable *tbl;
92 u_int8_t type; /* PF_ADDR_* */
93 u_int8_t iflags; /* PFI_AFLAG_* */
99 TAILQ_ENTRY(pfi_dynaddr) entry;
100 struct pf_addr pfid_addr4;
101 struct pf_addr pfid_mask4;
102 struct pf_addr pfid_addr6;
103 struct pf_addr pfid_mask6;
104 struct pfr_ktable *pfid_kt;
105 struct pfi_kif *pfid_kif;
106 int pfid_net; /* mask or 128 */
107 int pfid_acnt4; /* address count IPv4 */
108 int pfid_acnt6; /* address count IPv6 */
109 sa_family_t pfid_af; /* rule af */
110 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
114 * Address manipulation macros
116 #define HTONL(x) (x) = htonl((__uint32_t)(x))
117 #define HTONS(x) (x) = htons((__uint16_t)(x))
118 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
119 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
123 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
124 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
125 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
127 #define PF_STATE_LOCK(s) \
129 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
130 PF_HASHROW_LOCK(_ih); \
133 #define PF_STATE_UNLOCK(s) \
135 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
136 PF_HASHROW_UNLOCK(_ih); \
140 #define PF_STATE_LOCK_ASSERT(s) \
142 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
143 PF_HASHROW_ASSERT(_ih); \
145 #else /* !INVARIANTS */
146 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
147 #endif /* INVARIANTS */
149 extern struct mtx pf_unlnkdrules_mtx;
150 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
151 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
153 extern struct rmlock pf_rules_lock;
154 #define PF_RULES_RLOCK_TRACKER struct rm_priotracker _pf_rules_tracker
155 #define PF_RULES_RLOCK() rm_rlock(&pf_rules_lock, &_pf_rules_tracker)
156 #define PF_RULES_RUNLOCK() rm_runlock(&pf_rules_lock, &_pf_rules_tracker)
157 #define PF_RULES_WLOCK() rm_wlock(&pf_rules_lock)
158 #define PF_RULES_WUNLOCK() rm_wunlock(&pf_rules_lock)
159 #define PF_RULES_ASSERT() rm_assert(&pf_rules_lock, RA_LOCKED)
160 #define PF_RULES_RASSERT() rm_assert(&pf_rules_lock, RA_RLOCKED)
161 #define PF_RULES_WASSERT() rm_assert(&pf_rules_lock, RA_WLOCKED)
163 extern struct sx pf_end_lock;
166 #define PFLOG_MODVER 1
167 #define PFSYNC_MODVER 1
169 #define PFLOG_MINVER 1
170 #define PFLOG_PREFVER PFLOG_MODVER
171 #define PFLOG_MAXVER 1
172 #define PFSYNC_MINVER 1
173 #define PFSYNC_PREFVER PFSYNC_MODVER
174 #define PFSYNC_MAXVER 1
184 #define PF_INET6_ONLY
190 #define PF_INET_INET6
196 #define PF_INET_INET6
200 /* Both IPv4 and IPv6 */
203 #define PF_AEQ(a, b, c) \
204 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
205 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
206 (a)->addr32[2] == (b)->addr32[2] && \
207 (a)->addr32[1] == (b)->addr32[1] && \
208 (a)->addr32[0] == (b)->addr32[0])) \
210 #define PF_ANEQ(a, b, c) \
211 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
212 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
213 (a)->addr32[1] != (b)->addr32[1] || \
214 (a)->addr32[2] != (b)->addr32[2] || \
215 (a)->addr32[3] != (b)->addr32[3]))) \
217 #define PF_AZERO(a, c) \
218 ((c == AF_INET && !(a)->addr32[0]) || \
219 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
220 !(a)->addr32[2] && !(a)->addr32[3] )) \
222 #define PF_MATCHA(n, a, m, b, f) \
223 pf_match_addr(n, a, m, b, f)
225 #define PF_ACPY(a, b, f) \
228 #define PF_AINC(a, f) \
231 #define PF_POOLMASK(a, b, c, d, f) \
232 pf_poolmask(a, b, c, d, f)
240 #define PF_AEQ(a, b, c) \
241 ((a)->addr32[3] == (b)->addr32[3] && \
242 (a)->addr32[2] == (b)->addr32[2] && \
243 (a)->addr32[1] == (b)->addr32[1] && \
244 (a)->addr32[0] == (b)->addr32[0]) \
246 #define PF_ANEQ(a, b, c) \
247 ((a)->addr32[3] != (b)->addr32[3] || \
248 (a)->addr32[2] != (b)->addr32[2] || \
249 (a)->addr32[1] != (b)->addr32[1] || \
250 (a)->addr32[0] != (b)->addr32[0]) \
252 #define PF_AZERO(a, c) \
253 (!(a)->addr32[0] && \
258 #define PF_MATCHA(n, a, m, b, f) \
259 pf_match_addr(n, a, m, b, f)
261 #define PF_ACPY(a, b, f) \
264 #define PF_AINC(a, f) \
267 #define PF_POOLMASK(a, b, c, d, f) \
268 pf_poolmask(a, b, c, d, f)
275 #define PF_AEQ(a, b, c) \
276 ((a)->addr32[0] == (b)->addr32[0])
278 #define PF_ANEQ(a, b, c) \
279 ((a)->addr32[0] != (b)->addr32[0])
281 #define PF_AZERO(a, c) \
284 #define PF_MATCHA(n, a, m, b, f) \
285 pf_match_addr(n, a, m, b, f)
287 #define PF_ACPY(a, b, f) \
288 (a)->v4.s_addr = (b)->v4.s_addr
290 #define PF_AINC(a, f) \
292 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
295 #define PF_POOLMASK(a, b, c, d, f) \
297 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
298 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
301 #endif /* PF_INET_ONLY */
302 #endif /* PF_INET6_ONLY */
303 #endif /* PF_INET_INET6 */
306 * XXX callers not FIB-aware in our version of pf yet.
307 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
309 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
311 (((aw)->type == PF_ADDR_NOROUTE && \
312 pf_routable((x), (af), NULL, (rtid))) || \
313 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
314 pf_routable((x), (af), (ifp), (rtid))) || \
315 ((aw)->type == PF_ADDR_TABLE && \
316 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
317 ((aw)->type == PF_ADDR_DYNIFTL && \
318 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
319 ((aw)->type == PF_ADDR_RANGE && \
320 !pf_match_addr_range(&(aw)->v.a.addr, \
321 &(aw)->v.a.mask, (x), (af))) || \
322 ((aw)->type == PF_ADDR_ADDRMASK && \
323 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
324 !PF_MATCHA(0, &(aw)->v.a.addr, \
325 &(aw)->v.a.mask, (x), (af))))) != \
340 struct pf_rule_addr {
341 struct pf_addr_wrap addr;
348 struct pf_addr_wrap addr;
349 TAILQ_ENTRY(pf_pooladdr) entries;
350 char ifname[IFNAMSIZ];
354 TAILQ_HEAD(pf_palist, pf_pooladdr);
356 struct pf_poolhashkey {
361 } pfk; /* 128-bit hash key */
362 #define key8 pfk.key8
363 #define key16 pfk.key16
364 #define key32 pfk.key32
368 struct pf_palist list;
369 struct pf_pooladdr *cur;
370 struct pf_poolhashkey key;
371 struct pf_addr counter;
373 u_int16_t proxy_port[2];
378 /* A packed Operating System description for fingerprinting */
379 typedef u_int32_t pf_osfp_t;
380 #define PF_OSFP_ANY ((pf_osfp_t)0)
381 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
382 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
384 struct pf_osfp_entry {
385 SLIST_ENTRY(pf_osfp_entry) fp_entry;
388 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
389 #define PF_OSFP_GENERIC 0x002 /* generic signature */
390 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
391 #define PF_OSFP_LEN 32
392 char fp_class_nm[PF_OSFP_LEN];
393 char fp_version_nm[PF_OSFP_LEN];
394 char fp_subtype_nm[PF_OSFP_LEN];
396 #define PF_OSFP_ENTRY_EQ(a, b) \
397 ((a)->fp_os == (b)->fp_os && \
398 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
399 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
400 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
402 /* handle pf_osfp_t packing */
403 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
404 #define _FP_UNUSED_BITS 1
405 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
406 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
407 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
408 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
409 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
410 ((1 << _FP_CLASS_BITS) - 1); \
411 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
412 ((1 << _FP_VERSION_BITS) - 1);\
413 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
415 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
416 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
417 + _FP_SUBTYPE_BITS); \
418 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
420 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
423 /* the fingerprint of an OSes TCP SYN packet */
424 typedef u_int64_t pf_tcpopts_t;
425 struct pf_os_fingerprint {
426 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
427 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
428 u_int16_t fp_wsize; /* TCP window size */
429 u_int16_t fp_psize; /* ip->ip_len */
430 u_int16_t fp_mss; /* TCP MSS */
432 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
433 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
434 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
435 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
436 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
437 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
438 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
439 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
440 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
441 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
442 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
443 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
444 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
445 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
446 #define PF_OSFP_INET6 0x4000 /* IPv6 */
447 u_int8_t fp_optcnt; /* TCP option count */
448 u_int8_t fp_wscale; /* TCP window scaling */
449 u_int8_t fp_ttl; /* IPv4 TTL */
450 #define PF_OSFP_MAXTTL_OFFSET 40
451 /* TCP options packing */
452 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
453 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
454 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
455 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
456 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
457 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
458 #define PF_OSFP_MAX_OPTS \
459 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
460 / PF_OSFP_TCPOPT_BITS
462 SLIST_ENTRY(pf_os_fingerprint) fp_next;
465 struct pf_osfp_ioctl {
466 struct pf_osfp_entry fp_os;
467 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
468 u_int16_t fp_wsize; /* TCP window size */
469 u_int16_t fp_psize; /* ip->ip_len */
470 u_int16_t fp_mss; /* TCP MSS */
472 u_int8_t fp_optcnt; /* TCP option count */
473 u_int8_t fp_wscale; /* TCP window scaling */
474 u_int8_t fp_ttl; /* IPv4 TTL */
476 int fp_getnum; /* DIOCOSFPGET number */
485 #define PF_ANCHOR_NAME_SIZE 64
488 struct pf_rule_addr src;
489 struct pf_rule_addr dst;
490 #define PF_SKIP_IFP 0
491 #define PF_SKIP_DIR 1
493 #define PF_SKIP_PROTO 3
494 #define PF_SKIP_SRC_ADDR 4
495 #define PF_SKIP_SRC_PORT 5
496 #define PF_SKIP_DST_ADDR 6
497 #define PF_SKIP_DST_PORT 7
498 #define PF_SKIP_COUNT 8
499 union pf_rule_ptr skip[PF_SKIP_COUNT];
500 #define PF_RULE_LABEL_SIZE 64
501 char label[PF_RULE_LABEL_SIZE];
502 char ifname[IFNAMSIZ];
503 char qname[PF_QNAME_SIZE];
504 char pqname[PF_QNAME_SIZE];
505 #define PF_TAG_NAME_SIZE 64
506 char tagname[PF_TAG_NAME_SIZE];
507 char match_tagname[PF_TAG_NAME_SIZE];
509 char overload_tblname[PF_TABLE_NAME_SIZE];
511 TAILQ_ENTRY(pf_rule) entries;
512 struct pf_pool rpool;
514 u_int64_t evaluations;
515 u_int64_t packets[2];
519 struct pf_anchor *anchor;
520 struct pfr_ktable *overload_tbl;
522 pf_osfp_t os_fingerprint;
525 u_int32_t timeout[PFTM_MAX];
526 u_int32_t max_states;
527 u_int32_t max_src_nodes;
528 u_int32_t max_src_states;
529 u_int32_t max_src_conn;
542 counter_u64_t states_cur;
543 counter_u64_t states_tot;
544 counter_u64_t src_nodes;
546 u_int16_t return_icmp;
547 u_int16_t return_icmp6;
551 u_int16_t scrub_flags;
553 struct pf_rule_uid uid;
554 struct pf_rule_gid gid;
563 u_int8_t match_tag_not;
566 #define PF_STATE_NORMAL 0x1
567 #define PF_STATE_MODULATE 0x2
568 #define PF_STATE_SYNPROXY 0x3
582 u_int8_t anchor_relative;
583 u_int8_t anchor_wildcard;
585 #define PF_FLUSH 0x01
586 #define PF_FLUSH_GLOBAL 0x02
588 #define PF_PRIO_ZERO 0xff /* match "prio 0" packets */
589 #define PF_PRIO_MAX 7
591 u_int8_t set_prio[2];
598 uint64_t u_states_cur;
599 uint64_t u_states_tot;
600 uint64_t u_src_nodes;
604 #define PFRULE_DROP 0x0000
605 #define PFRULE_RETURNRST 0x0001
606 #define PFRULE_FRAGMENT 0x0002
607 #define PFRULE_RETURNICMP 0x0004
608 #define PFRULE_RETURN 0x0008
609 #define PFRULE_NOSYNC 0x0010
610 #define PFRULE_SRCTRACK 0x0020 /* track source states */
611 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
612 #define PFRULE_REFS 0x0080 /* rule has references */
615 #define PFRULE_NODF 0x0100
616 #define PFRULE_RANDOMID 0x0800
617 #define PFRULE_REASSEMBLE_TCP 0x1000
618 #define PFRULE_SET_TOS 0x2000
620 /* rule flags again */
621 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
622 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
624 #define PFSTATE_HIWAT 100000 /* default state table size */
625 #define PFSTATE_ADAPT_START 60000 /* default adaptive timeout start */
626 #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 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1002 struct pfr_addr pfras_a;
1003 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1004 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1008 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1011 struct pfr_table pfrts_t;
1012 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1013 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1014 u_int64_t pfrts_match;
1015 u_int64_t pfrts_nomatch;
1018 int pfrts_refcnt[PFR_REFCNT_MAX];
1020 #define pfrts_name pfrts_t.pfrt_name
1021 #define pfrts_flags pfrts_t.pfrt_flags
1023 #ifndef _SOCKADDR_UNION_DEFINED
1024 #define _SOCKADDR_UNION_DEFINED
1025 union sockaddr_union {
1027 struct sockaddr_in sin;
1028 struct sockaddr_in6 sin6;
1030 #endif /* _SOCKADDR_UNION_DEFINED */
1032 struct pfr_kcounters {
1033 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1034 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1037 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1039 struct radix_node pfrke_node[2];
1040 union sockaddr_union pfrke_sa;
1041 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1042 struct pfr_kcounters *pfrke_counters;
1047 u_int8_t pfrke_mark;
1050 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1051 RB_HEAD(pfr_ktablehead, pfr_ktable);
1053 struct pfr_tstats pfrkt_ts;
1054 RB_ENTRY(pfr_ktable) pfrkt_tree;
1055 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1056 struct radix_node_head *pfrkt_ip4;
1057 struct radix_node_head *pfrkt_ip6;
1058 struct pfr_ktable *pfrkt_shadow;
1059 struct pfr_ktable *pfrkt_root;
1060 struct pf_ruleset *pfrkt_rs;
1064 #define pfrkt_t pfrkt_ts.pfrts_t
1065 #define pfrkt_name pfrkt_t.pfrt_name
1066 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1067 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1068 #define pfrkt_flags pfrkt_t.pfrt_flags
1069 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1070 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1071 #define pfrkt_packets pfrkt_ts.pfrts_packets
1072 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1073 #define pfrkt_match pfrkt_ts.pfrts_match
1074 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1075 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1077 /* keep synced with pfi_kif, used in RB_FIND */
1078 struct pfi_kif_cmp {
1079 char pfik_name[IFNAMSIZ];
1083 char pfik_name[IFNAMSIZ];
1085 RB_ENTRY(pfi_kif) _pfik_tree;
1086 LIST_ENTRY(pfi_kif) _pfik_list;
1088 #define pfik_tree _pfik_glue._pfik_tree
1089 #define pfik_list _pfik_glue._pfik_list
1090 u_int64_t pfik_packets[2][2][2];
1091 u_int64_t pfik_bytes[2][2][2];
1092 u_int32_t pfik_tzero;
1094 struct ifnet *pfik_ifp;
1095 struct ifg_group *pfik_group;
1096 u_int pfik_rulerefs;
1097 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1100 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1101 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1109 u_int64_t tot_len; /* Make Mickey money */
1115 struct icmp6_hdr *icmp6;
1120 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1121 struct pf_addr *src; /* src address */
1122 struct pf_addr *dst; /* dst address */
1125 struct pf_mtag *pf_mtag;
1127 u_int32_t p_len; /* total length of payload */
1130 u_int16_t *proto_sum;
1131 u_int16_t flags; /* Let SCRUB trigger behavior in
1132 * state code. Easier than tags */
1133 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1134 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1138 u_int8_t dir; /* direction */
1139 u_int8_t sidx; /* key index for source */
1140 u_int8_t didx; /* key index for destination */
1143 /* flags for RDR options */
1144 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1145 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1147 /* UDP state enumeration */
1148 #define PFUDPS_NO_TRAFFIC 0
1149 #define PFUDPS_SINGLE 1
1150 #define PFUDPS_MULTIPLE 2
1152 #define PFUDPS_NSTATES 3 /* number of state levels */
1154 #define PFUDPS_NAMES { \
1161 /* Other protocol state enumeration */
1162 #define PFOTHERS_NO_TRAFFIC 0
1163 #define PFOTHERS_SINGLE 1
1164 #define PFOTHERS_MULTIPLE 2
1166 #define PFOTHERS_NSTATES 3 /* number of state levels */
1168 #define PFOTHERS_NAMES { \
1175 #define ACTION_SET(a, x) \
1181 #define REASON_SET(a, x) \
1185 if (x < PFRES_MAX) \
1186 counter_u64_add(V_pf_status.counters[x], 1); \
1190 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1191 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */
1192 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */
1193 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1200 char ifname[IFNAMSIZ];
1201 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1206 struct in_addr ipv4;
1207 struct in6_addr ipv6;
1212 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1213 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1216 * Limit the length of the fragment queue traversal. Remember
1217 * search entry points based on the fragment offset.
1219 #define PF_FRAG_ENTRY_POINTS 16
1222 * The number of entries in the fragment queue must be limited
1223 * to avoid DoS by linear seaching. Instead of a global limit,
1224 * use a limit per entry point. For large packets these sum up.
1226 #define PF_FRAG_ENTRY_LIMIT 64
1229 * ioctl parameter structures
1232 struct pfioc_pooladdr {
1240 char anchor[MAXPATHLEN];
1241 struct pf_pooladdr addr;
1247 u_int32_t pool_ticket;
1249 char anchor[MAXPATHLEN];
1250 char anchor_call[MAXPATHLEN];
1251 struct pf_rule rule;
1254 struct pfioc_natlook {
1255 struct pf_addr saddr;
1256 struct pf_addr daddr;
1257 struct pf_addr rsaddr;
1258 struct pf_addr rdaddr;
1268 struct pfioc_state {
1269 struct pfsync_state state;
1272 struct pfioc_src_node_kill {
1273 sa_family_t psnk_af;
1274 struct pf_rule_addr psnk_src;
1275 struct pf_rule_addr psnk_dst;
1279 struct pfioc_state_kill {
1280 struct pf_state_cmp psk_pfcmp;
1283 struct pf_rule_addr psk_src;
1284 struct pf_rule_addr psk_dst;
1285 char psk_ifname[IFNAMSIZ];
1286 char psk_label[PF_RULE_LABEL_SIZE];
1290 struct pfioc_states {
1294 struct pfsync_state *psu_states;
1296 #define ps_buf ps_u.psu_buf
1297 #define ps_states ps_u.psu_states
1300 struct pfioc_src_nodes {
1304 struct pf_src_node *psu_src_nodes;
1306 #define psn_buf psn_u.psu_buf
1307 #define psn_src_nodes psn_u.psu_src_nodes
1311 char ifname[IFNAMSIZ];
1319 struct pfioc_limit {
1324 struct pfioc_altq_v0 {
1328 struct pf_altq_v0 altq;
1331 struct pfioc_altq_v1 {
1336 * Placed here so code that only uses the above parameters can be
1337 * written entirely in terms of the v0 or v1 type.
1340 struct pf_altq_v1 altq;
1344 * Latest version of struct pfioc_altq_vX. This must move in lock-step with
1345 * the latest version of struct pf_altq_vX as it has that struct as a
1348 #define PFIOC_ALTQ_VERSION PF_ALTQ_VERSION
1350 struct pfioc_qstats_v0 {
1358 struct pfioc_qstats_v1 {
1365 * Placed here so code that only uses the above parameters can be
1366 * written entirely in terms of the v0 or v1 type.
1368 u_int32_t version; /* Requested version of stats struct */
1371 /* Latest version of struct pfioc_qstats_vX */
1372 #define PFIOC_QSTATS_VERSION 1
1374 struct pfioc_ruleset {
1376 char path[MAXPATHLEN];
1377 char name[PF_ANCHOR_NAME_SIZE];
1380 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1381 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1382 struct pfioc_trans {
1383 int size; /* number of elements */
1384 int esize; /* size of each element in bytes */
1385 struct pfioc_trans_e {
1387 char anchor[MAXPATHLEN];
1392 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1393 #define PFR_FLAG_DUMMY 0x00000002
1394 #define PFR_FLAG_FEEDBACK 0x00000004
1395 #define PFR_FLAG_CLSTATS 0x00000008
1396 #define PFR_FLAG_ADDRSTOO 0x00000010
1397 #define PFR_FLAG_REPLACE 0x00000020
1398 #define PFR_FLAG_ALLRSETS 0x00000040
1399 #define PFR_FLAG_ALLMASK 0x0000007F
1401 #define PFR_FLAG_USERIOCTL 0x10000000
1404 struct pfioc_table {
1405 struct pfr_table pfrio_table;
1414 u_int32_t pfrio_ticket;
1416 #define pfrio_exists pfrio_nadd
1417 #define pfrio_nzero pfrio_nadd
1418 #define pfrio_nmatch pfrio_nadd
1419 #define pfrio_naddr pfrio_size2
1420 #define pfrio_setflag pfrio_size2
1421 #define pfrio_clrflag pfrio_nadd
1423 struct pfioc_iface {
1424 char pfiio_name[IFNAMSIZ];
1437 #define DIOCSTART _IO ('D', 1)
1438 #define DIOCSTOP _IO ('D', 2)
1439 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1440 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1441 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1442 /* XXX cut 8 - 17 */
1443 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1444 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1445 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1446 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1447 #define DIOCCLRSTATUS _IO ('D', 22)
1448 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1449 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1450 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1451 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1452 /* XXX cut 26 - 28 */
1453 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1454 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1455 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1456 #define DIOCCLRRULECTRS _IO ('D', 38)
1457 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1458 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1459 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1460 #define DIOCSTARTALTQ _IO ('D', 42)
1461 #define DIOCSTOPALTQ _IO ('D', 43)
1462 #define DIOCADDALTQV0 _IOWR('D', 45, struct pfioc_altq_v0)
1463 #define DIOCADDALTQV1 _IOWR('D', 45, struct pfioc_altq_v1)
1464 #define DIOCGETALTQSV0 _IOWR('D', 47, struct pfioc_altq_v0)
1465 #define DIOCGETALTQSV1 _IOWR('D', 47, struct pfioc_altq_v1)
1466 #define DIOCGETALTQV0 _IOWR('D', 48, struct pfioc_altq_v0)
1467 #define DIOCGETALTQV1 _IOWR('D', 48, struct pfioc_altq_v1)
1468 #define DIOCCHANGEALTQV0 _IOWR('D', 49, struct pfioc_altq_v0)
1469 #define DIOCCHANGEALTQV1 _IOWR('D', 49, struct pfioc_altq_v1)
1470 #define DIOCGETQSTATSV0 _IOWR('D', 50, struct pfioc_qstats_v0)
1471 #define DIOCGETQSTATSV1 _IOWR('D', 50, struct pfioc_qstats_v1)
1472 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1473 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1474 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1475 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1476 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1477 /* XXX cut 55 - 57 */
1478 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1479 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1480 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1481 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1482 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1483 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1484 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1485 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1486 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1487 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1488 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1489 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1490 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1491 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1492 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1493 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1494 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1495 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1496 #define DIOCOSFPFLUSH _IO('D', 78)
1497 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1498 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1499 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1500 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1501 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1502 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1503 #define DIOCCLRSRCNODES _IO('D', 85)
1504 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1505 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1506 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1507 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1508 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1509 struct pf_ifspeed_v0 {
1510 char ifname[IFNAMSIZ];
1514 struct pf_ifspeed_v1 {
1515 char ifname[IFNAMSIZ];
1516 u_int32_t baudrate32;
1517 /* layout identical to struct pf_ifspeed_v0 up to this point */
1521 /* Latest version of struct pf_ifspeed_vX */
1522 #define PF_IFSPEED_VERSION 1
1524 #define DIOCGIFSPEEDV0 _IOWR('D', 92, struct pf_ifspeed_v0)
1525 #define DIOCGIFSPEEDV1 _IOWR('D', 92, struct pf_ifspeed_v1)
1528 * Compatibility and convenience macros
1531 #ifdef PFIOC_USE_LATEST
1533 * Maintaining in-tree consumers of the ioctl interface is easier when that
1534 * code can be written in terms old names that refer to the latest interface
1535 * version as that reduces the required changes in the consumers to those
1536 * that are functionally necessary to accommodate a new interface version.
1538 #define pfioc_altq __CONCAT(pfioc_altq_v, PFIOC_ALTQ_VERSION)
1539 #define pfioc_qstats __CONCAT(pfioc_qstats_v, PFIOC_QSTATS_VERSION)
1540 #define pf_ifspeed __CONCAT(pf_ifspeed_v, PF_IFSPEED_VERSION)
1542 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, PFIOC_ALTQ_VERSION)
1543 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, PFIOC_ALTQ_VERSION)
1544 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, PFIOC_ALTQ_VERSION)
1545 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, PFIOC_ALTQ_VERSION)
1546 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, PFIOC_QSTATS_VERSION)
1547 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, PF_IFSPEED_VERSION)
1550 * When building out-of-tree code that is written for the old interface,
1551 * such as may exist in ports for example, resolve the old struct tags and
1552 * ioctl command names to the v0 versions.
1554 #define pfioc_altq __CONCAT(pfioc_altq_v, 0)
1555 #define pfioc_qstats __CONCAT(pfioc_qstats_v, 0)
1556 #define pf_ifspeed __CONCAT(pf_ifspeed_v, 0)
1558 #define DIOCADDALTQ __CONCAT(DIOCADDALTQV, 0)
1559 #define DIOCGETALTQS __CONCAT(DIOCGETALTQSV, 0)
1560 #define DIOCGETALTQ __CONCAT(DIOCGETALTQV, 0)
1561 #define DIOCCHANGEALTQ __CONCAT(DIOCCHANGEALTQV, 0)
1562 #define DIOCGETQSTATS __CONCAT(DIOCGETQSTATSV, 0)
1563 #define DIOCGIFSPEED __CONCAT(DIOCGIFSPEEDV, 0)
1564 #endif /* PFIOC_USE_LATEST */
1565 #endif /* _KERNEL */
1568 LIST_HEAD(pf_src_node_list, pf_src_node);
1570 struct pf_src_node_list nodes;
1575 LIST_HEAD(, pf_state_key) keys;
1580 LIST_HEAD(, pf_state) states;
1584 extern u_long pf_hashmask;
1585 extern u_long pf_srchashmask;
1586 #define PF_HASHSIZ (131072)
1587 #define PF_SRCHASHSIZ (PF_HASHSIZ/4)
1588 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1589 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1590 #define V_pf_keyhash VNET(pf_keyhash)
1591 #define V_pf_idhash VNET(pf_idhash)
1592 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1593 #define V_pf_srchash VNET(pf_srchash)
1595 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1597 VNET_DECLARE(void *, pf_swi_cookie);
1598 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1600 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1601 #define V_pf_stateid VNET(pf_stateid)
1603 TAILQ_HEAD(pf_altqqueue, pf_altq);
1604 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1605 #define V_pf_altqs VNET(pf_altqs)
1606 VNET_DECLARE(struct pf_palist, pf_pabuf);
1607 #define V_pf_pabuf VNET(pf_pabuf)
1609 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1610 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1611 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1612 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1613 VNET_DECLARE(int, altqs_inactive_open);
1614 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1615 VNET_DECLARE(u_int32_t, ticket_pabuf);
1616 #define V_ticket_pabuf VNET(ticket_pabuf)
1617 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1618 #define V_pf_altqs_active VNET(pf_altqs_active)
1619 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1620 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1622 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1623 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1625 void pf_initialize(void);
1626 void pf_mtag_initialize(void);
1627 void pf_mtag_cleanup(void);
1628 void pf_cleanup(void);
1630 struct pf_mtag *pf_get_mtag(struct mbuf *);
1632 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1634 extern void pf_altq_ifnet_event(struct ifnet *, int);
1636 VNET_DECLARE(uma_zone_t, pf_state_z);
1637 #define V_pf_state_z VNET(pf_state_z)
1638 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1639 #define V_pf_state_key_z VNET(pf_state_key_z)
1640 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1641 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1643 extern void pf_purge_thread(void *);
1644 extern void pf_unload_vnet_purge(void);
1645 extern void pf_intr(void *);
1646 extern void pf_purge_expired_src_nodes(void);
1648 extern int pf_unlink_state(struct pf_state *, u_int);
1649 #define PF_ENTER_LOCKED 0x00000001
1650 #define PF_RETURN_LOCKED 0x00000002
1651 extern int pf_state_insert(struct pfi_kif *,
1652 struct pf_state_key *,
1653 struct pf_state_key *,
1655 extern void pf_free_state(struct pf_state *);
1657 static __inline void
1658 pf_ref_state(struct pf_state *s)
1661 refcount_acquire(&s->refs);
1665 pf_release_state(struct pf_state *s)
1668 if (refcount_release(&s->refs)) {
1675 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1676 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1678 extern struct pf_src_node *pf_find_src_node(struct pf_addr *,
1679 struct pf_rule *, sa_family_t, int);
1680 extern void pf_unlink_src_node(struct pf_src_node *);
1681 extern u_int pf_free_src_nodes(struct pf_src_node_list *);
1682 extern void pf_print_state(struct pf_state *);
1683 extern void pf_print_flags(u_int8_t);
1684 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1686 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1687 u_int16_t, u_int16_t, u_int8_t);
1689 VNET_DECLARE(struct ifnet *, sync_ifp);
1690 #define V_sync_ifp VNET(sync_ifp);
1691 VNET_DECLARE(struct pf_rule, pf_default_rule);
1692 #define V_pf_default_rule VNET(pf_default_rule)
1693 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1695 void pf_free_rule(struct pf_rule *);
1698 int pf_test(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1699 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1704 int pf_test6(int, int, struct ifnet *, struct mbuf **, struct inpcb *);
1705 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1707 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1708 struct pf_addr *, struct pf_addr *, u_int8_t);
1709 void pf_addr_inc(struct pf_addr *, sa_family_t);
1710 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1713 u_int32_t pf_new_isn(struct pf_state *);
1714 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1716 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1717 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1719 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1720 void pf_send_deferred_syn(struct pf_state *);
1721 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1722 struct pf_addr *, sa_family_t);
1723 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1724 struct pf_addr *, sa_family_t);
1725 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1727 void pf_normalize_init(void);
1728 void pf_normalize_cleanup(void);
1729 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1731 void pf_normalize_tcp_cleanup(struct pf_state *);
1732 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1733 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1734 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1735 u_short *, struct tcphdr *, struct pf_state *,
1736 struct pf_state_peer *, struct pf_state_peer *, int *);
1738 pf_state_expires(const struct pf_state *);
1739 void pf_purge_expired_fragments(void);
1740 void pf_purge_fragments(uint32_t);
1741 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1743 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1744 struct pf_state_key *pf_alloc_state_key(int);
1745 void pfr_initialize(void);
1746 void pfr_cleanup(void);
1747 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1748 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1749 u_int64_t, int, int, int);
1750 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1751 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1753 pfr_attach_table(struct pf_ruleset *, char *);
1754 void pfr_detach_table(struct pfr_ktable *);
1755 int pfr_clr_tables(struct pfr_table *, int *, int);
1756 int pfr_add_tables(struct pfr_table *, int, int *, int);
1757 int pfr_del_tables(struct pfr_table *, int, int *, int);
1758 int pfr_table_count(struct pfr_table *, int);
1759 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1760 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1761 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1762 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1763 int pfr_clr_addrs(struct pfr_table *, int *, int);
1764 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1765 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1767 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1769 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1770 int *, int *, int *, int, u_int32_t);
1771 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1772 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1773 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1775 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1777 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1778 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1779 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1780 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1781 int *, u_int32_t, int);
1783 MALLOC_DECLARE(PFI_MTYPE);
1784 VNET_DECLARE(struct pfi_kif *, pfi_all);
1785 #define V_pfi_all VNET(pfi_all)
1787 void pfi_initialize(void);
1788 void pfi_initialize_vnet(void);
1789 void pfi_cleanup(void);
1790 void pfi_cleanup_vnet(void);
1791 void pfi_kif_ref(struct pfi_kif *);
1792 void pfi_kif_unref(struct pfi_kif *);
1793 struct pfi_kif *pfi_kif_find(const char *);
1794 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1795 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1796 void pfi_kif_purge(void);
1797 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1799 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1800 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1801 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1802 void pfi_update_status(const char *, struct pf_status *);
1803 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1804 int pfi_set_flags(const char *, int);
1805 int pfi_clear_flags(const char *, int);
1807 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1808 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1809 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
1811 void pf_qid2qname(u_int32_t, char *);
1813 VNET_DECLARE(struct pf_kstatus, pf_status);
1814 #define V_pf_status VNET(pf_status)
1820 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1821 #define V_pf_limits VNET(pf_limits)
1823 #endif /* _KERNEL */
1826 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1827 #define V_pf_anchors VNET(pf_anchors)
1828 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1829 #define V_pf_main_anchor VNET(pf_main_anchor)
1830 #define pf_main_ruleset V_pf_main_anchor.ruleset
1833 /* these ruleset functions can be linked into userland programs (pfctl) */
1834 int pf_get_ruleset_number(u_int8_t);
1835 void pf_init_ruleset(struct pf_ruleset *);
1836 int pf_anchor_setup(struct pf_rule *,
1837 const struct pf_ruleset *, const char *);
1838 int pf_anchor_copyout(const struct pf_ruleset *,
1839 const struct pf_rule *, struct pfioc_rule *);
1840 void pf_anchor_remove(struct pf_rule *);
1841 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1842 struct pf_ruleset *pf_find_ruleset(const char *);
1843 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1844 void pf_rs_initialize(void);
1846 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1847 int pf_osfp_add(struct pf_osfp_ioctl *);
1849 struct pf_osfp_enlist *
1850 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1851 const struct tcphdr *);
1852 #endif /* _KERNEL */
1853 void pf_osfp_flush(void);
1854 int pf_osfp_get(struct pf_osfp_ioctl *);
1855 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1858 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1860 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1861 struct pf_ruleset **, int, struct pf_rule **,
1862 struct pf_rule **, int *);
1863 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1864 struct pf_ruleset **, int, struct pf_rule **,
1865 struct pf_rule **, int *);
1867 int pf_map_addr(u_int8_t, struct pf_rule *,
1868 struct pf_addr *, struct pf_addr *,
1869 struct pf_addr *, struct pf_src_node **);
1870 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1871 int, int, struct pfi_kif *, struct pf_src_node **,
1872 struct pf_state_key **, struct pf_state_key **,
1873 struct pf_addr *, struct pf_addr *,
1874 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1876 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1877 struct pf_addr *, u_int16_t, u_int16_t);
1878 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1879 #endif /* _KERNEL */
1881 #endif /* _NET_PFVAR_H_ */