2 * Copyright (c) 2001 Daniel Hartmeier
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following
13 * disclaimer in the documentation and/or other materials provided
14 * with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
29 * $OpenBSD: pfvar.h,v 1.282 2009/01/29 15:12:28 pyr Exp $
36 #include <sys/param.h>
37 #include <sys/queue.h>
38 #include <sys/counter.h>
39 #include <sys/malloc.h>
40 #include <sys/refcount.h>
44 #include <net/radix.h>
45 #include <netinet/in.h>
47 #include <netpfil/pf/pf.h>
48 #include <netpfil/pf/pf_altq.h>
49 #include <netpfil/pf/pf_mtag.h>
58 } pfa; /* 128-bit address */
61 #define addr8 pfa.addr8
62 #define addr16 pfa.addr16
63 #define addr32 pfa.addr32
66 #define PFI_AFLAG_NETWORK 0x01
67 #define PFI_AFLAG_BROADCAST 0x02
68 #define PFI_AFLAG_PEER 0x04
69 #define PFI_AFLAG_MODEMASK 0x07
70 #define PFI_AFLAG_NOALIAS 0x08
78 char ifname[IFNAMSIZ];
79 char tblname[PF_TABLE_NAME_SIZE];
82 struct pfi_dynaddr *dyn;
83 struct pfr_ktable *tbl;
87 u_int8_t type; /* PF_ADDR_* */
88 u_int8_t iflags; /* PFI_AFLAG_* */
94 TAILQ_ENTRY(pfi_dynaddr) entry;
95 struct pf_addr pfid_addr4;
96 struct pf_addr pfid_mask4;
97 struct pf_addr pfid_addr6;
98 struct pf_addr pfid_mask6;
99 struct pfr_ktable *pfid_kt;
100 struct pfi_kif *pfid_kif;
101 int pfid_net; /* mask or 128 */
102 int pfid_acnt4; /* address count IPv4 */
103 int pfid_acnt6; /* address count IPv6 */
104 sa_family_t pfid_af; /* rule af */
105 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
109 * Address manipulation macros
111 #define HTONL(x) (x) = htonl((__uint32_t)(x))
112 #define HTONS(x) (x) = htons((__uint16_t)(x))
113 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
114 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
118 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
119 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
120 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
122 #define PF_STATE_LOCK(s) \
124 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
125 PF_HASHROW_LOCK(_ih); \
128 #define PF_STATE_UNLOCK(s) \
130 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
131 PF_HASHROW_UNLOCK(_ih); \
135 #define PF_STATE_LOCK_ASSERT(s) \
137 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
138 PF_HASHROW_ASSERT(_ih); \
140 #else /* !INVARIANTS */
141 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
142 #endif /* INVARIANTS */
144 extern struct mtx pf_unlnkdrules_mtx;
145 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
146 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
148 extern struct rwlock pf_rules_lock;
149 #define PF_RULES_RLOCK() rw_rlock(&pf_rules_lock)
150 #define PF_RULES_RUNLOCK() rw_runlock(&pf_rules_lock)
151 #define PF_RULES_WLOCK() rw_wlock(&pf_rules_lock)
152 #define PF_RULES_WUNLOCK() rw_wunlock(&pf_rules_lock)
153 #define PF_RULES_ASSERT() rw_assert(&pf_rules_lock, RA_LOCKED)
154 #define PF_RULES_RASSERT() rw_assert(&pf_rules_lock, RA_RLOCKED)
155 #define PF_RULES_WASSERT() rw_assert(&pf_rules_lock, RA_WLOCKED)
158 #define PFLOG_MODVER 1
159 #define PFSYNC_MODVER 1
161 #define PFLOG_MINVER 1
162 #define PFLOG_PREFVER PFLOG_MODVER
163 #define PFLOG_MAXVER 1
164 #define PFSYNC_MINVER 1
165 #define PFSYNC_PREFVER PFSYNC_MODVER
166 #define PFSYNC_MAXVER 1
176 #define PF_INET6_ONLY
182 #define PF_INET_INET6
188 #define PF_INET_INET6
192 /* Both IPv4 and IPv6 */
195 #define PF_AEQ(a, b, c) \
196 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
197 (c == AF_INET6 && (a)->addr32[3] == (b)->addr32[3] && \
198 (a)->addr32[2] == (b)->addr32[2] && \
199 (a)->addr32[1] == (b)->addr32[1] && \
200 (a)->addr32[0] == (b)->addr32[0])) \
202 #define PF_ANEQ(a, b, c) \
203 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
204 (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \
205 (a)->addr32[1] != (b)->addr32[1] || \
206 (a)->addr32[2] != (b)->addr32[2] || \
207 (a)->addr32[3] != (b)->addr32[3]))) \
209 #define PF_AZERO(a, c) \
210 ((c == AF_INET && !(a)->addr32[0]) || \
211 (c == AF_INET6 && !(a)->addr32[0] && !(a)->addr32[1] && \
212 !(a)->addr32[2] && !(a)->addr32[3] )) \
214 #define PF_MATCHA(n, a, m, b, f) \
215 pf_match_addr(n, a, m, b, f)
217 #define PF_ACPY(a, b, f) \
220 #define PF_AINC(a, f) \
223 #define PF_POOLMASK(a, b, c, d, f) \
224 pf_poolmask(a, b, c, d, f)
232 #define PF_AEQ(a, b, c) \
233 ((a)->addr32[3] == (b)->addr32[3] && \
234 (a)->addr32[2] == (b)->addr32[2] && \
235 (a)->addr32[1] == (b)->addr32[1] && \
236 (a)->addr32[0] == (b)->addr32[0]) \
238 #define PF_ANEQ(a, b, c) \
239 ((a)->addr32[3] != (b)->addr32[3] || \
240 (a)->addr32[2] != (b)->addr32[2] || \
241 (a)->addr32[1] != (b)->addr32[1] || \
242 (a)->addr32[0] != (b)->addr32[0]) \
244 #define PF_AZERO(a, c) \
245 (!(a)->addr32[0] && \
250 #define PF_MATCHA(n, a, m, b, f) \
251 pf_match_addr(n, a, m, b, f)
253 #define PF_ACPY(a, b, f) \
256 #define PF_AINC(a, f) \
259 #define PF_POOLMASK(a, b, c, d, f) \
260 pf_poolmask(a, b, c, d, f)
267 #define PF_AEQ(a, b, c) \
268 ((a)->addr32[0] == (b)->addr32[0])
270 #define PF_ANEQ(a, b, c) \
271 ((a)->addr32[0] != (b)->addr32[0])
273 #define PF_AZERO(a, c) \
276 #define PF_MATCHA(n, a, m, b, f) \
277 pf_match_addr(n, a, m, b, f)
279 #define PF_ACPY(a, b, f) \
280 (a)->v4.s_addr = (b)->v4.s_addr
282 #define PF_AINC(a, f) \
284 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
287 #define PF_POOLMASK(a, b, c, d, f) \
289 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
290 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
293 #endif /* PF_INET_ONLY */
294 #endif /* PF_INET6_ONLY */
295 #endif /* PF_INET_INET6 */
298 * XXX callers not FIB-aware in our version of pf yet.
299 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
301 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
303 (((aw)->type == PF_ADDR_NOROUTE && \
304 pf_routable((x), (af), NULL, (rtid))) || \
305 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
306 pf_routable((x), (af), (ifp), (rtid))) || \
307 ((aw)->type == PF_ADDR_TABLE && \
308 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
309 ((aw)->type == PF_ADDR_DYNIFTL && \
310 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
311 ((aw)->type == PF_ADDR_RANGE && \
312 !pf_match_addr_range(&(aw)->v.a.addr, \
313 &(aw)->v.a.mask, (x), (af))) || \
314 ((aw)->type == PF_ADDR_ADDRMASK && \
315 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
316 !PF_MATCHA(0, &(aw)->v.a.addr, \
317 &(aw)->v.a.mask, (x), (af))))) != \
332 struct pf_rule_addr {
333 struct pf_addr_wrap addr;
340 struct pf_addr_wrap addr;
341 TAILQ_ENTRY(pf_pooladdr) entries;
342 char ifname[IFNAMSIZ];
346 TAILQ_HEAD(pf_palist, pf_pooladdr);
348 struct pf_poolhashkey {
353 } pfk; /* 128-bit hash key */
354 #define key8 pfk.key8
355 #define key16 pfk.key16
356 #define key32 pfk.key32
360 struct pf_palist list;
361 struct pf_pooladdr *cur;
362 struct pf_poolhashkey key;
363 struct pf_addr counter;
365 u_int16_t proxy_port[2];
370 /* A packed Operating System description for fingerprinting */
371 typedef u_int32_t pf_osfp_t;
372 #define PF_OSFP_ANY ((pf_osfp_t)0)
373 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
374 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
376 struct pf_osfp_entry {
377 SLIST_ENTRY(pf_osfp_entry) fp_entry;
380 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
381 #define PF_OSFP_GENERIC 0x002 /* generic signature */
382 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
383 #define PF_OSFP_LEN 32
384 char fp_class_nm[PF_OSFP_LEN];
385 char fp_version_nm[PF_OSFP_LEN];
386 char fp_subtype_nm[PF_OSFP_LEN];
388 #define PF_OSFP_ENTRY_EQ(a, b) \
389 ((a)->fp_os == (b)->fp_os && \
390 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
391 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
392 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
394 /* handle pf_osfp_t packing */
395 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
396 #define _FP_UNUSED_BITS 1
397 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
398 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
399 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
400 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
401 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
402 ((1 << _FP_CLASS_BITS) - 1); \
403 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
404 ((1 << _FP_VERSION_BITS) - 1);\
405 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
407 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
408 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
409 + _FP_SUBTYPE_BITS); \
410 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
412 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
415 /* the fingerprint of an OSes TCP SYN packet */
416 typedef u_int64_t pf_tcpopts_t;
417 struct pf_os_fingerprint {
418 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
419 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
420 u_int16_t fp_wsize; /* TCP window size */
421 u_int16_t fp_psize; /* ip->ip_len */
422 u_int16_t fp_mss; /* TCP MSS */
424 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
425 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
426 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
427 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
428 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
429 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
430 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
431 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
432 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
433 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
434 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
435 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
436 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
437 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
438 #define PF_OSFP_INET6 0x4000 /* IPv6 */
439 u_int8_t fp_optcnt; /* TCP option count */
440 u_int8_t fp_wscale; /* TCP window scaling */
441 u_int8_t fp_ttl; /* IPv4 TTL */
442 #define PF_OSFP_MAXTTL_OFFSET 40
443 /* TCP options packing */
444 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
445 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
446 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
447 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
448 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
449 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
450 #define PF_OSFP_MAX_OPTS \
451 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
452 / PF_OSFP_TCPOPT_BITS
454 SLIST_ENTRY(pf_os_fingerprint) fp_next;
457 struct pf_osfp_ioctl {
458 struct pf_osfp_entry fp_os;
459 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
460 u_int16_t fp_wsize; /* TCP window size */
461 u_int16_t fp_psize; /* ip->ip_len */
462 u_int16_t fp_mss; /* TCP MSS */
464 u_int8_t fp_optcnt; /* TCP option count */
465 u_int8_t fp_wscale; /* TCP window scaling */
466 u_int8_t fp_ttl; /* IPv4 TTL */
468 int fp_getnum; /* DIOCOSFPGET number */
477 #define PF_ANCHOR_NAME_SIZE 64
480 struct pf_rule_addr src;
481 struct pf_rule_addr dst;
482 #define PF_SKIP_IFP 0
483 #define PF_SKIP_DIR 1
485 #define PF_SKIP_PROTO 3
486 #define PF_SKIP_SRC_ADDR 4
487 #define PF_SKIP_SRC_PORT 5
488 #define PF_SKIP_DST_ADDR 6
489 #define PF_SKIP_DST_PORT 7
490 #define PF_SKIP_COUNT 8
491 union pf_rule_ptr skip[PF_SKIP_COUNT];
492 #define PF_RULE_LABEL_SIZE 64
493 char label[PF_RULE_LABEL_SIZE];
494 char ifname[IFNAMSIZ];
495 char qname[PF_QNAME_SIZE];
496 char pqname[PF_QNAME_SIZE];
497 #define PF_TAG_NAME_SIZE 64
498 char tagname[PF_TAG_NAME_SIZE];
499 char match_tagname[PF_TAG_NAME_SIZE];
501 char overload_tblname[PF_TABLE_NAME_SIZE];
503 TAILQ_ENTRY(pf_rule) entries;
504 struct pf_pool rpool;
506 u_int64_t evaluations;
507 u_int64_t packets[2];
511 struct pf_anchor *anchor;
512 struct pfr_ktable *overload_tbl;
514 pf_osfp_t os_fingerprint;
517 u_int32_t timeout[PFTM_MAX];
518 u_int32_t max_states;
519 u_int32_t max_src_nodes;
520 u_int32_t max_src_states;
521 u_int32_t max_src_conn;
534 counter_u64_t states_cur;
535 counter_u64_t states_tot;
536 counter_u64_t src_nodes;
538 u_int16_t return_icmp;
539 u_int16_t return_icmp6;
543 u_int16_t scrub_flags;
545 struct pf_rule_uid uid;
546 struct pf_rule_gid gid;
555 u_int8_t match_tag_not;
558 #define PF_STATE_NORMAL 0x1
559 #define PF_STATE_MODULATE 0x2
560 #define PF_STATE_SYNPROXY 0x3
574 u_int8_t anchor_relative;
575 u_int8_t anchor_wildcard;
577 #define PF_FLUSH 0x01
578 #define PF_FLUSH_GLOBAL 0x02
580 #define PF_PRIO_ZERO 0xff /* match "prio 0" packets */
581 #define PF_PRIO_MAX 7
583 u_int8_t set_prio[2];
590 uint64_t u_states_cur;
591 uint64_t u_states_tot;
592 uint64_t u_src_nodes;
596 #define PFRULE_DROP 0x0000
597 #define PFRULE_RETURNRST 0x0001
598 #define PFRULE_FRAGMENT 0x0002
599 #define PFRULE_RETURNICMP 0x0004
600 #define PFRULE_RETURN 0x0008
601 #define PFRULE_NOSYNC 0x0010
602 #define PFRULE_SRCTRACK 0x0020 /* track source states */
603 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
604 #define PFRULE_REFS 0x0080 /* rule has references */
607 #define PFRULE_NODF 0x0100
608 #define PFRULE_RANDOMID 0x0800
609 #define PFRULE_REASSEMBLE_TCP 0x1000
610 #define PFRULE_SET_TOS 0x2000
612 /* rule flags again */
613 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
614 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
616 #define PFSTATE_HIWAT 10000 /* default state table size */
617 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
618 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
621 struct pf_threshold {
623 #define PF_THRESHOLD_MULT 1000
624 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
631 LIST_ENTRY(pf_src_node) entry;
633 struct pf_addr raddr;
634 union pf_rule_ptr rule;
637 u_int64_t packets[2];
640 struct pf_threshold conn_rate;
647 #define PFSNODE_HIWAT 10000 /* default source node table size */
649 struct pf_state_scrub {
650 struct timeval pfss_last; /* time received last packet */
651 u_int32_t pfss_tsecr; /* last echoed timestamp */
652 u_int32_t pfss_tsval; /* largest timestamp */
653 u_int32_t pfss_tsval0; /* original timestamp */
654 u_int16_t pfss_flags;
655 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
656 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
657 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
658 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
659 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
660 u_int8_t pfss_ttl; /* stashed TTL */
662 u_int32_t pfss_ts_mod; /* timestamp modulation */
665 struct pf_state_host {
671 struct pf_state_peer {
672 struct pf_state_scrub *scrub; /* state is scrubbed */
673 u_int32_t seqlo; /* Max sequence number sent */
674 u_int32_t seqhi; /* Max the other end ACKd + win */
675 u_int32_t seqdiff; /* Sequence number modulator */
676 u_int16_t max_win; /* largest window (pre scaling) */
677 u_int16_t mss; /* Maximum segment size option */
678 u_int8_t state; /* active state level */
679 u_int8_t wscale; /* window scaling factor */
680 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
684 /* Keep synced with struct pf_state_key. */
685 struct pf_state_key_cmp {
686 struct pf_addr addr[2];
693 struct pf_state_key {
694 struct pf_addr addr[2];
700 LIST_ENTRY(pf_state_key) entry;
701 TAILQ_HEAD(, pf_state) states[2];
704 /* Keep synced with struct pf_state. */
705 struct pf_state_cmp {
719 TAILQ_ENTRY(pf_state) sync_list;
720 TAILQ_ENTRY(pf_state) key_list[2];
721 LIST_ENTRY(pf_state) entry;
722 struct pf_state_peer src;
723 struct pf_state_peer dst;
724 union pf_rule_ptr rule;
725 union pf_rule_ptr anchor;
726 union pf_rule_ptr nat_rule;
727 struct pf_addr rt_addr;
728 struct pf_state_key *key[2]; /* addresses stack and wire */
730 struct pfi_kif *rt_kif;
731 struct pf_src_node *src_node;
732 struct pf_src_node *nat_src_node;
733 u_int64_t packets[2];
737 u_int32_t pfsync_time;
740 u_int8_t state_flags;
741 #define PFSTATE_ALLOWOPTS 0x01
742 #define PFSTATE_SLOPPY 0x02
743 /* was PFSTATE_PFLOW 0x04 */
744 #define PFSTATE_NOSYNC 0x08
745 #define PFSTATE_ACK 0x10
746 #define PFSTATE_SETPRIO 0x0200
747 #define PFSTATE_SETMASK (PFSTATE_SETPRIO)
749 u_int8_t sync_state; /* PFSYNC_S_x */
752 u_int8_t sync_updates;
757 * Unified state structures for pulling states out of the kernel
758 * used by pfsync(4) and the pf(4) ioctl.
760 struct pfsync_state_scrub {
761 u_int16_t pfss_flags;
762 u_int8_t pfss_ttl; /* stashed TTL */
763 #define PFSYNC_SCRUB_FLAG_VALID 0x01
765 u_int32_t pfss_ts_mod; /* timestamp modulation */
768 struct pfsync_state_peer {
769 struct pfsync_state_scrub scrub; /* state is scrubbed */
770 u_int32_t seqlo; /* Max sequence number sent */
771 u_int32_t seqhi; /* Max the other end ACKd + win */
772 u_int32_t seqdiff; /* Sequence number modulator */
773 u_int16_t max_win; /* largest window (pre scaling) */
774 u_int16_t mss; /* Maximum segment size option */
775 u_int8_t state; /* active state level */
776 u_int8_t wscale; /* window scaling factor */
780 struct pfsync_state_key {
781 struct pf_addr addr[2];
785 struct pfsync_state {
787 char ifname[IFNAMSIZ];
788 struct pfsync_state_key key[2];
789 struct pfsync_state_peer src;
790 struct pfsync_state_peer dst;
791 struct pf_addr rt_addr;
797 u_int32_t packets[2][2];
798 u_int32_t bytes[2][2];
805 u_int8_t state_flags;
813 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
814 typedef void pfsync_insert_state_t(struct pf_state *);
815 typedef void pfsync_update_state_t(struct pf_state *);
816 typedef void pfsync_delete_state_t(struct pf_state *);
817 typedef void pfsync_clear_states_t(u_int32_t, const char *);
818 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
820 extern pfsync_state_import_t *pfsync_state_import_ptr;
821 extern pfsync_insert_state_t *pfsync_insert_state_ptr;
822 extern pfsync_update_state_t *pfsync_update_state_ptr;
823 extern pfsync_delete_state_t *pfsync_delete_state_ptr;
824 extern pfsync_clear_states_t *pfsync_clear_states_ptr;
825 extern pfsync_defer_t *pfsync_defer_ptr;
827 void pfsync_state_export(struct pfsync_state *,
833 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
834 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
835 struct pf_ruleset *, struct pf_pdesc *, int);
836 extern pflog_packet_t *pflog_packet_ptr;
838 #define V_pf_end_threads VNET(pf_end_threads)
841 #define PFSYNC_FLAG_SRCNODE 0x04
842 #define PFSYNC_FLAG_NATSRCNODE 0x08
844 /* for copies to/from network byte order */
845 /* ioctl interface also uses network byte order */
846 #define pf_state_peer_hton(s,d) do { \
847 (d)->seqlo = htonl((s)->seqlo); \
848 (d)->seqhi = htonl((s)->seqhi); \
849 (d)->seqdiff = htonl((s)->seqdiff); \
850 (d)->max_win = htons((s)->max_win); \
851 (d)->mss = htons((s)->mss); \
852 (d)->state = (s)->state; \
853 (d)->wscale = (s)->wscale; \
855 (d)->scrub.pfss_flags = \
856 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
857 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
858 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
859 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
863 #define pf_state_peer_ntoh(s,d) do { \
864 (d)->seqlo = ntohl((s)->seqlo); \
865 (d)->seqhi = ntohl((s)->seqhi); \
866 (d)->seqdiff = ntohl((s)->seqdiff); \
867 (d)->max_win = ntohs((s)->max_win); \
868 (d)->mss = ntohs((s)->mss); \
869 (d)->state = (s)->state; \
870 (d)->wscale = (s)->wscale; \
871 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
872 (d)->scrub != NULL) { \
873 (d)->scrub->pfss_flags = \
874 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
875 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
876 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
880 #define pf_state_counter_hton(s,d) do { \
881 d[0] = htonl((s>>32)&0xffffffff); \
882 d[1] = htonl(s&0xffffffff); \
885 #define pf_state_counter_from_pfsync(s) \
886 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
888 #define pf_state_counter_ntoh(s,d) do { \
894 TAILQ_HEAD(pf_rulequeue, pf_rule);
900 struct pf_rulequeue queues[2];
902 struct pf_rulequeue *ptr;
903 struct pf_rule **ptr_array;
908 } rules[PF_RULESET_MAX];
909 struct pf_anchor *anchor;
915 RB_HEAD(pf_anchor_global, pf_anchor);
916 RB_HEAD(pf_anchor_node, pf_anchor);
918 RB_ENTRY(pf_anchor) entry_global;
919 RB_ENTRY(pf_anchor) entry_node;
920 struct pf_anchor *parent;
921 struct pf_anchor_node children;
922 char name[PF_ANCHOR_NAME_SIZE];
923 char path[MAXPATHLEN];
924 struct pf_ruleset ruleset;
925 int refcnt; /* anchor rules */
926 int match; /* XXX: used for pfctl black magic */
928 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
929 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
931 #define PF_RESERVED_ANCHOR "_pf"
933 #define PFR_TFLAG_PERSIST 0x00000001
934 #define PFR_TFLAG_CONST 0x00000002
935 #define PFR_TFLAG_ACTIVE 0x00000004
936 #define PFR_TFLAG_INACTIVE 0x00000008
937 #define PFR_TFLAG_REFERENCED 0x00000010
938 #define PFR_TFLAG_REFDANCHOR 0x00000020
939 #define PFR_TFLAG_COUNTERS 0x00000040
940 /* Adjust masks below when adding flags. */
941 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
944 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
945 PFR_TFLAG_INACTIVE | \
946 PFR_TFLAG_REFERENCED | \
947 PFR_TFLAG_REFDANCHOR)
948 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
951 PFR_TFLAG_INACTIVE | \
952 PFR_TFLAG_REFERENCED | \
953 PFR_TFLAG_REFDANCHOR | \
956 struct pf_anchor_stackframe;
959 char pfrt_anchor[MAXPATHLEN];
960 char pfrt_name[PF_TABLE_NAME_SIZE];
961 u_int32_t pfrt_flags;
965 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
966 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
967 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
971 struct in_addr _pfra_ip4addr;
972 struct in6_addr _pfra_ip6addr;
979 #define pfra_ip4addr pfra_u._pfra_ip4addr
980 #define pfra_ip6addr pfra_u._pfra_ip6addr
982 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
983 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
984 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
987 struct pfr_addr pfras_a;
988 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
989 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
993 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
996 struct pfr_table pfrts_t;
997 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
998 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
999 u_int64_t pfrts_match;
1000 u_int64_t pfrts_nomatch;
1003 int pfrts_refcnt[PFR_REFCNT_MAX];
1005 #define pfrts_name pfrts_t.pfrt_name
1006 #define pfrts_flags pfrts_t.pfrt_flags
1008 #ifndef _SOCKADDR_UNION_DEFINED
1009 #define _SOCKADDR_UNION_DEFINED
1010 union sockaddr_union {
1012 struct sockaddr_in sin;
1013 struct sockaddr_in6 sin6;
1015 #endif /* _SOCKADDR_UNION_DEFINED */
1017 struct pfr_kcounters {
1018 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1019 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1022 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1024 struct radix_node pfrke_node[2];
1025 union sockaddr_union pfrke_sa;
1026 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1027 struct pfr_kcounters *pfrke_counters;
1032 u_int8_t pfrke_mark;
1035 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1036 RB_HEAD(pfr_ktablehead, pfr_ktable);
1038 struct pfr_tstats pfrkt_ts;
1039 RB_ENTRY(pfr_ktable) pfrkt_tree;
1040 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1041 struct radix_node_head *pfrkt_ip4;
1042 struct radix_node_head *pfrkt_ip6;
1043 struct pfr_ktable *pfrkt_shadow;
1044 struct pfr_ktable *pfrkt_root;
1045 struct pf_ruleset *pfrkt_rs;
1049 #define pfrkt_t pfrkt_ts.pfrts_t
1050 #define pfrkt_name pfrkt_t.pfrt_name
1051 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1052 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1053 #define pfrkt_flags pfrkt_t.pfrt_flags
1054 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1055 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1056 #define pfrkt_packets pfrkt_ts.pfrts_packets
1057 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1058 #define pfrkt_match pfrkt_ts.pfrts_match
1059 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1060 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1062 /* keep synced with pfi_kif, used in RB_FIND */
1063 struct pfi_kif_cmp {
1064 char pfik_name[IFNAMSIZ];
1068 char pfik_name[IFNAMSIZ];
1070 RB_ENTRY(pfi_kif) _pfik_tree;
1071 LIST_ENTRY(pfi_kif) _pfik_list;
1073 #define pfik_tree _pfik_glue._pfik_tree
1074 #define pfik_list _pfik_glue._pfik_list
1075 u_int64_t pfik_packets[2][2][2];
1076 u_int64_t pfik_bytes[2][2][2];
1077 u_int32_t pfik_tzero;
1079 struct ifnet *pfik_ifp;
1080 struct ifg_group *pfik_group;
1081 u_int pfik_rulerefs;
1082 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1085 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1086 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1094 u_int64_t tot_len; /* Make Mickey money */
1100 struct icmp6_hdr *icmp6;
1105 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1106 struct pf_addr *src; /* src address */
1107 struct pf_addr *dst; /* dst address */
1110 struct pf_mtag *pf_mtag;
1112 u_int32_t p_len; /* total length of payload */
1115 u_int16_t *proto_sum;
1116 u_int16_t flags; /* Let SCRUB trigger behavior in
1117 * state code. Easier than tags */
1118 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1119 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1123 u_int8_t dir; /* direction */
1124 u_int8_t sidx; /* key index for source */
1125 u_int8_t didx; /* key index for destination */
1128 /* flags for RDR options */
1129 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1130 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1132 /* UDP state enumeration */
1133 #define PFUDPS_NO_TRAFFIC 0
1134 #define PFUDPS_SINGLE 1
1135 #define PFUDPS_MULTIPLE 2
1137 #define PFUDPS_NSTATES 3 /* number of state levels */
1139 #define PFUDPS_NAMES { \
1146 /* Other protocol state enumeration */
1147 #define PFOTHERS_NO_TRAFFIC 0
1148 #define PFOTHERS_SINGLE 1
1149 #define PFOTHERS_MULTIPLE 2
1151 #define PFOTHERS_NSTATES 3 /* number of state levels */
1153 #define PFOTHERS_NAMES { \
1160 #define ACTION_SET(a, x) \
1166 #define REASON_SET(a, x) \
1170 if (x < PFRES_MAX) \
1171 counter_u64_add(V_pf_status.counters[x], 1); \
1175 counter_u64_t counters[PFRES_MAX]; /* reason for passing/dropping */
1176 counter_u64_t lcounters[LCNT_MAX]; /* limit counters */
1177 counter_u64_t fcounters[FCNT_MAX]; /* state operation counters */
1178 counter_u64_t scounters[SCNT_MAX]; /* src_node operation counters */
1185 char ifname[IFNAMSIZ];
1186 uint8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1191 struct in_addr ipv4;
1192 struct in6_addr ipv6;
1197 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1198 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1201 * ioctl parameter structures
1204 struct pfioc_pooladdr {
1212 char anchor[MAXPATHLEN];
1213 struct pf_pooladdr addr;
1219 u_int32_t pool_ticket;
1221 char anchor[MAXPATHLEN];
1222 char anchor_call[MAXPATHLEN];
1223 struct pf_rule rule;
1226 struct pfioc_natlook {
1227 struct pf_addr saddr;
1228 struct pf_addr daddr;
1229 struct pf_addr rsaddr;
1230 struct pf_addr rdaddr;
1240 struct pfioc_state {
1241 struct pfsync_state state;
1244 struct pfioc_src_node_kill {
1245 sa_family_t psnk_af;
1246 struct pf_rule_addr psnk_src;
1247 struct pf_rule_addr psnk_dst;
1251 struct pfioc_state_kill {
1252 struct pf_state_cmp psk_pfcmp;
1255 struct pf_rule_addr psk_src;
1256 struct pf_rule_addr psk_dst;
1257 char psk_ifname[IFNAMSIZ];
1258 char psk_label[PF_RULE_LABEL_SIZE];
1262 struct pfioc_states {
1266 struct pfsync_state *psu_states;
1268 #define ps_buf ps_u.psu_buf
1269 #define ps_states ps_u.psu_states
1272 struct pfioc_src_nodes {
1276 struct pf_src_node *psu_src_nodes;
1278 #define psn_buf psn_u.psu_buf
1279 #define psn_src_nodes psn_u.psu_src_nodes
1283 char ifname[IFNAMSIZ];
1291 struct pfioc_limit {
1300 struct pf_altq altq;
1303 struct pfioc_qstats {
1311 struct pfioc_ruleset {
1313 char path[MAXPATHLEN];
1314 char name[PF_ANCHOR_NAME_SIZE];
1317 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1318 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1319 struct pfioc_trans {
1320 int size; /* number of elements */
1321 int esize; /* size of each element in bytes */
1322 struct pfioc_trans_e {
1324 char anchor[MAXPATHLEN];
1329 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1330 #define PFR_FLAG_DUMMY 0x00000002
1331 #define PFR_FLAG_FEEDBACK 0x00000004
1332 #define PFR_FLAG_CLSTATS 0x00000008
1333 #define PFR_FLAG_ADDRSTOO 0x00000010
1334 #define PFR_FLAG_REPLACE 0x00000020
1335 #define PFR_FLAG_ALLRSETS 0x00000040
1336 #define PFR_FLAG_ALLMASK 0x0000007F
1338 #define PFR_FLAG_USERIOCTL 0x10000000
1341 struct pfioc_table {
1342 struct pfr_table pfrio_table;
1351 u_int32_t pfrio_ticket;
1353 #define pfrio_exists pfrio_nadd
1354 #define pfrio_nzero pfrio_nadd
1355 #define pfrio_nmatch pfrio_nadd
1356 #define pfrio_naddr pfrio_size2
1357 #define pfrio_setflag pfrio_size2
1358 #define pfrio_clrflag pfrio_nadd
1360 struct pfioc_iface {
1361 char pfiio_name[IFNAMSIZ];
1374 #define DIOCSTART _IO ('D', 1)
1375 #define DIOCSTOP _IO ('D', 2)
1376 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1377 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1378 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1379 /* XXX cut 8 - 17 */
1380 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1381 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1382 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1383 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1384 #define DIOCCLRSTATUS _IO ('D', 22)
1385 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1386 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1387 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1388 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1389 /* XXX cut 26 - 28 */
1390 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1391 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1392 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1393 #define DIOCCLRRULECTRS _IO ('D', 38)
1394 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1395 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1396 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1397 #define DIOCSTARTALTQ _IO ('D', 42)
1398 #define DIOCSTOPALTQ _IO ('D', 43)
1399 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1400 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1401 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1402 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1403 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1404 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1405 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1406 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1407 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1408 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1409 /* XXX cut 55 - 57 */
1410 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1411 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1412 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1413 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1414 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1415 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1416 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1417 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1418 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1419 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1420 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1421 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1422 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1423 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1424 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1425 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1426 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1427 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1428 #define DIOCOSFPFLUSH _IO('D', 78)
1429 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1430 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1431 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1432 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1433 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1434 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1435 #define DIOCCLRSRCNODES _IO('D', 85)
1436 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1437 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1438 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1439 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1440 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1442 char ifname[IFNAMSIZ];
1445 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1448 LIST_HEAD(pf_src_node_list, pf_src_node);
1450 struct pf_src_node_list nodes;
1455 LIST_HEAD(, pf_state_key) keys;
1460 LIST_HEAD(, pf_state) states;
1464 extern u_long pf_hashmask;
1465 extern u_long pf_srchashmask;
1466 #define PF_HASHSIZ (32768)
1467 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1468 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1469 #define V_pf_keyhash VNET(pf_keyhash)
1470 #define V_pf_idhash VNET(pf_idhash)
1471 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1472 #define V_pf_srchash VNET(pf_srchash)
1474 #define PF_IDHASH(s) (be64toh((s)->id) % (pf_hashmask + 1))
1476 VNET_DECLARE(void *, pf_swi_cookie);
1477 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1479 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1480 #define V_pf_stateid VNET(pf_stateid)
1482 TAILQ_HEAD(pf_altqqueue, pf_altq);
1483 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1484 #define V_pf_altqs VNET(pf_altqs)
1485 VNET_DECLARE(struct pf_palist, pf_pabuf);
1486 #define V_pf_pabuf VNET(pf_pabuf)
1488 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1489 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1490 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1491 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1492 VNET_DECLARE(int, altqs_inactive_open);
1493 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1494 VNET_DECLARE(u_int32_t, ticket_pabuf);
1495 #define V_ticket_pabuf VNET(ticket_pabuf)
1496 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1497 #define V_pf_altqs_active VNET(pf_altqs_active)
1498 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1499 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1501 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1502 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1504 void pf_initialize(void);
1505 void pf_mtag_initialize(void);
1506 void pf_mtag_cleanup(void);
1507 void pf_cleanup(void);
1509 struct pf_mtag *pf_get_mtag(struct mbuf *);
1511 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1513 extern void pf_altq_ifnet_event(struct ifnet *, int);
1515 VNET_DECLARE(uma_zone_t, pf_state_z);
1516 #define V_pf_state_z VNET(pf_state_z)
1517 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1518 #define V_pf_state_key_z VNET(pf_state_key_z)
1519 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1520 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1522 extern void pf_purge_thread(void *);
1523 extern void pf_intr(void *);
1524 extern void pf_purge_expired_src_nodes(void);
1526 extern int pf_unlink_state(struct pf_state *, u_int);
1527 #define PF_ENTER_LOCKED 0x00000001
1528 #define PF_RETURN_LOCKED 0x00000002
1529 extern int pf_state_insert(struct pfi_kif *,
1530 struct pf_state_key *,
1531 struct pf_state_key *,
1533 extern void pf_free_state(struct pf_state *);
1535 static __inline void
1536 pf_ref_state(struct pf_state *s)
1539 refcount_acquire(&s->refs);
1543 pf_release_state(struct pf_state *s)
1546 if (refcount_release(&s->refs)) {
1553 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1554 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1556 extern struct pf_src_node *pf_find_src_node(struct pf_addr *,
1557 struct pf_rule *, sa_family_t, int);
1558 extern void pf_unlink_src_node(struct pf_src_node *);
1559 extern u_int pf_free_src_nodes(struct pf_src_node_list *);
1560 extern void pf_print_state(struct pf_state *);
1561 extern void pf_print_flags(u_int8_t);
1562 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1564 extern u_int16_t pf_proto_cksum_fixup(struct mbuf *, u_int16_t,
1565 u_int16_t, u_int16_t, u_int8_t);
1567 VNET_DECLARE(struct ifnet *, sync_ifp);
1568 #define V_sync_ifp VNET(sync_ifp);
1569 VNET_DECLARE(struct pf_rule, pf_default_rule);
1570 #define V_pf_default_rule VNET(pf_default_rule)
1571 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1573 void pf_free_rule(struct pf_rule *);
1576 int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *);
1577 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1582 int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *);
1583 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1585 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1586 struct pf_addr *, struct pf_addr *, u_int8_t);
1587 void pf_addr_inc(struct pf_addr *, sa_family_t);
1588 int pf_refragment6(struct ifnet *, struct mbuf **, struct m_tag *);
1591 u_int32_t pf_new_isn(struct pf_state *);
1592 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1594 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1595 void pf_change_proto_a(struct mbuf *, void *, u_int16_t *, u_int32_t,
1597 void pf_change_tcp_a(struct mbuf *, void *, u_int16_t *, u_int32_t);
1598 void pf_send_deferred_syn(struct pf_state *);
1599 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1600 struct pf_addr *, sa_family_t);
1601 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1602 struct pf_addr *, sa_family_t);
1603 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1605 void pf_normalize_init(void);
1606 void pf_normalize_cleanup(void);
1607 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1609 void pf_normalize_tcp_cleanup(struct pf_state *);
1610 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1611 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1612 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1613 u_short *, struct tcphdr *, struct pf_state *,
1614 struct pf_state_peer *, struct pf_state_peer *, int *);
1616 pf_state_expires(const struct pf_state *);
1617 void pf_purge_expired_fragments(void);
1618 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1620 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1621 struct pf_state_key *pf_alloc_state_key(int);
1622 void pfr_initialize(void);
1623 void pfr_cleanup(void);
1624 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1625 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1626 u_int64_t, int, int, int);
1627 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1628 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1630 pfr_attach_table(struct pf_ruleset *, char *);
1631 void pfr_detach_table(struct pfr_ktable *);
1632 int pfr_clr_tables(struct pfr_table *, int *, int);
1633 int pfr_add_tables(struct pfr_table *, int, int *, int);
1634 int pfr_del_tables(struct pfr_table *, int, int *, int);
1635 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1636 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1637 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1638 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1639 int pfr_clr_addrs(struct pfr_table *, int *, int);
1640 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1641 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1643 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1645 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1646 int *, int *, int *, int, u_int32_t);
1647 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1648 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1649 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1651 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1653 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1654 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1655 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1656 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1657 int *, u_int32_t, int);
1659 MALLOC_DECLARE(PFI_MTYPE);
1660 VNET_DECLARE(struct pfi_kif *, pfi_all);
1661 #define V_pfi_all VNET(pfi_all)
1663 void pfi_initialize(void);
1664 void pfi_cleanup(void);
1665 void pfi_kif_ref(struct pfi_kif *);
1666 void pfi_kif_unref(struct pfi_kif *);
1667 struct pfi_kif *pfi_kif_find(const char *);
1668 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1669 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1670 void pfi_kif_purge(void);
1671 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1673 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1674 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1675 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1676 void pfi_update_status(const char *, struct pf_status *);
1677 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1678 int pfi_set_flags(const char *, int);
1679 int pfi_clear_flags(const char *, int);
1681 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1682 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1683 int pf_addr_cmp(struct pf_addr *, struct pf_addr *,
1685 void pf_qid2qname(u_int32_t, char *);
1687 VNET_DECLARE(struct pf_kstatus, pf_status);
1688 #define V_pf_status VNET(pf_status)
1694 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1695 #define V_pf_limits VNET(pf_limits)
1697 #endif /* _KERNEL */
1700 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1701 #define V_pf_anchors VNET(pf_anchors)
1702 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1703 #define V_pf_main_anchor VNET(pf_main_anchor)
1704 #define pf_main_ruleset V_pf_main_anchor.ruleset
1707 /* these ruleset functions can be linked into userland programs (pfctl) */
1708 int pf_get_ruleset_number(u_int8_t);
1709 void pf_init_ruleset(struct pf_ruleset *);
1710 int pf_anchor_setup(struct pf_rule *,
1711 const struct pf_ruleset *, const char *);
1712 int pf_anchor_copyout(const struct pf_ruleset *,
1713 const struct pf_rule *, struct pfioc_rule *);
1714 void pf_anchor_remove(struct pf_rule *);
1715 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1716 struct pf_ruleset *pf_find_ruleset(const char *);
1717 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1718 void pf_rs_initialize(void);
1720 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1721 int pf_osfp_add(struct pf_osfp_ioctl *);
1723 struct pf_osfp_enlist *
1724 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1725 const struct tcphdr *);
1726 #endif /* _KERNEL */
1727 void pf_osfp_flush(void);
1728 int pf_osfp_get(struct pf_osfp_ioctl *);
1729 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1732 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1734 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1735 struct pf_ruleset **, int, struct pf_rule **,
1736 struct pf_rule **, int *);
1737 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1738 struct pf_ruleset **, int, struct pf_rule **,
1739 struct pf_rule **, int *);
1741 int pf_map_addr(u_int8_t, struct pf_rule *,
1742 struct pf_addr *, struct pf_addr *,
1743 struct pf_addr *, struct pf_src_node **);
1744 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1745 int, int, struct pfi_kif *, struct pf_src_node **,
1746 struct pf_state_key **, struct pf_state_key **,
1747 struct pf_addr *, struct pf_addr *,
1748 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1750 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1751 struct pf_addr *, u_int16_t, u_int16_t);
1752 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1753 #endif /* _KERNEL */
1755 #endif /* _NET_PFVAR_H_ */