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/refcount.h>
41 #include <net/radix.h>
42 #include <netinet/in.h>
44 #include <netpfil/pf/pf.h>
45 #include <netpfil/pf/pf_altq.h>
46 #include <netpfil/pf/pf_mtag.h>
55 } pfa; /* 128-bit address */
58 #define addr8 pfa.addr8
59 #define addr16 pfa.addr16
60 #define addr32 pfa.addr32
63 #define PFI_AFLAG_NETWORK 0x01
64 #define PFI_AFLAG_BROADCAST 0x02
65 #define PFI_AFLAG_PEER 0x04
66 #define PFI_AFLAG_MODEMASK 0x07
67 #define PFI_AFLAG_NOALIAS 0x08
75 char ifname[IFNAMSIZ];
76 char tblname[PF_TABLE_NAME_SIZE];
79 struct pfi_dynaddr *dyn;
80 struct pfr_ktable *tbl;
84 u_int8_t type; /* PF_ADDR_* */
85 u_int8_t iflags; /* PFI_AFLAG_* */
91 TAILQ_ENTRY(pfi_dynaddr) entry;
92 struct pf_addr pfid_addr4;
93 struct pf_addr pfid_mask4;
94 struct pf_addr pfid_addr6;
95 struct pf_addr pfid_mask6;
96 struct pfr_ktable *pfid_kt;
97 struct pfi_kif *pfid_kif;
98 int pfid_net; /* mask or 128 */
99 int pfid_acnt4; /* address count IPv4 */
100 int pfid_acnt6; /* address count IPv6 */
101 sa_family_t pfid_af; /* rule af */
102 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
106 * Address manipulation macros
108 #define HTONL(x) (x) = htonl((__uint32_t)(x))
109 #define HTONS(x) (x) = htons((__uint16_t)(x))
110 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
111 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
115 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
116 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
117 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
119 #define PF_STATE_LOCK(s) \
121 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
122 PF_HASHROW_LOCK(_ih); \
125 #define PF_STATE_UNLOCK(s) \
127 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
128 PF_HASHROW_UNLOCK(_ih); \
132 #define PF_STATE_LOCK_ASSERT(s) \
134 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
135 PF_HASHROW_ASSERT(_ih); \
137 #else /* !INVARIANTS */
138 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
139 #endif /* INVARIANTS */
141 extern struct mtx pf_unlnkdrules_mtx;
142 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
143 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
145 extern struct rwlock pf_rules_lock;
146 #define PF_RULES_RLOCK() rw_rlock(&pf_rules_lock)
147 #define PF_RULES_RUNLOCK() rw_runlock(&pf_rules_lock)
148 #define PF_RULES_WLOCK() rw_wlock(&pf_rules_lock)
149 #define PF_RULES_WUNLOCK() rw_wunlock(&pf_rules_lock)
150 #define PF_RULES_ASSERT() rw_assert(&pf_rules_lock, RA_LOCKED)
151 #define PF_RULES_RASSERT() rw_assert(&pf_rules_lock, RA_RLOCKED)
152 #define PF_RULES_WASSERT() rw_assert(&pf_rules_lock, RA_WLOCKED)
155 #define PFLOG_MODVER 1
156 #define PFSYNC_MODVER 1
158 #define PFLOG_MINVER 1
159 #define PFLOG_PREFVER PFLOG_MODVER
160 #define PFLOG_MAXVER 1
161 #define PFSYNC_MINVER 1
162 #define PFSYNC_PREFVER PFSYNC_MODVER
163 #define PFSYNC_MAXVER 1
173 #define PF_INET6_ONLY
179 #define PF_INET_INET6
185 #define PF_INET_INET6
189 /* Both IPv4 and IPv6 */
192 #define PF_AEQ(a, b, c) \
193 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
194 ((a)->addr32[3] == (b)->addr32[3] && \
195 (a)->addr32[2] == (b)->addr32[2] && \
196 (a)->addr32[1] == (b)->addr32[1] && \
197 (a)->addr32[0] == (b)->addr32[0])) \
199 #define PF_ANEQ(a, b, c) \
200 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
201 ((a)->addr32[3] != (b)->addr32[3] || \
202 (a)->addr32[2] != (b)->addr32[2] || \
203 (a)->addr32[1] != (b)->addr32[1] || \
204 (a)->addr32[0] != (b)->addr32[0])) \
206 #define PF_AZERO(a, c) \
207 ((c == AF_INET && !(a)->addr32[0]) || \
208 (!(a)->addr32[0] && !(a)->addr32[1] && \
209 !(a)->addr32[2] && !(a)->addr32[3] )) \
211 #define PF_MATCHA(n, a, m, b, f) \
212 pf_match_addr(n, a, m, b, f)
214 #define PF_ACPY(a, b, f) \
217 #define PF_AINC(a, f) \
220 #define PF_POOLMASK(a, b, c, d, f) \
221 pf_poolmask(a, b, c, d, f)
229 #define PF_AEQ(a, b, c) \
230 ((a)->addr32[3] == (b)->addr32[3] && \
231 (a)->addr32[2] == (b)->addr32[2] && \
232 (a)->addr32[1] == (b)->addr32[1] && \
233 (a)->addr32[0] == (b)->addr32[0]) \
235 #define PF_ANEQ(a, b, c) \
236 ((a)->addr32[3] != (b)->addr32[3] || \
237 (a)->addr32[2] != (b)->addr32[2] || \
238 (a)->addr32[1] != (b)->addr32[1] || \
239 (a)->addr32[0] != (b)->addr32[0]) \
241 #define PF_AZERO(a, c) \
242 (!(a)->addr32[0] && \
247 #define PF_MATCHA(n, a, m, b, f) \
248 pf_match_addr(n, a, m, b, f)
250 #define PF_ACPY(a, b, f) \
253 #define PF_AINC(a, f) \
256 #define PF_POOLMASK(a, b, c, d, f) \
257 pf_poolmask(a, b, c, d, f)
264 #define PF_AEQ(a, b, c) \
265 ((a)->addr32[0] == (b)->addr32[0])
267 #define PF_ANEQ(a, b, c) \
268 ((a)->addr32[0] != (b)->addr32[0])
270 #define PF_AZERO(a, c) \
273 #define PF_MATCHA(n, a, m, b, f) \
274 pf_match_addr(n, a, m, b, f)
276 #define PF_ACPY(a, b, f) \
277 (a)->v4.s_addr = (b)->v4.s_addr
279 #define PF_AINC(a, f) \
281 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
284 #define PF_POOLMASK(a, b, c, d, f) \
286 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
287 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
290 #endif /* PF_INET_ONLY */
291 #endif /* PF_INET6_ONLY */
292 #endif /* PF_INET_INET6 */
295 * XXX callers not FIB-aware in our version of pf yet.
296 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
298 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
300 (((aw)->type == PF_ADDR_NOROUTE && \
301 pf_routable((x), (af), NULL, (rtid))) || \
302 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
303 pf_routable((x), (af), (ifp), (rtid))) || \
304 ((aw)->type == PF_ADDR_TABLE && \
305 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
306 ((aw)->type == PF_ADDR_DYNIFTL && \
307 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
308 ((aw)->type == PF_ADDR_RANGE && \
309 !pf_match_addr_range(&(aw)->v.a.addr, \
310 &(aw)->v.a.mask, (x), (af))) || \
311 ((aw)->type == PF_ADDR_ADDRMASK && \
312 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
313 !PF_MATCHA(0, &(aw)->v.a.addr, \
314 &(aw)->v.a.mask, (x), (af))))) != \
329 struct pf_rule_addr {
330 struct pf_addr_wrap addr;
337 struct pf_addr_wrap addr;
338 TAILQ_ENTRY(pf_pooladdr) entries;
339 char ifname[IFNAMSIZ];
343 TAILQ_HEAD(pf_palist, pf_pooladdr);
345 struct pf_poolhashkey {
350 } pfk; /* 128-bit hash key */
351 #define key8 pfk.key8
352 #define key16 pfk.key16
353 #define key32 pfk.key32
357 struct pf_palist list;
358 struct pf_pooladdr *cur;
359 struct pf_poolhashkey key;
360 struct pf_addr counter;
362 u_int16_t proxy_port[2];
367 /* A packed Operating System description for fingerprinting */
368 typedef u_int32_t pf_osfp_t;
369 #define PF_OSFP_ANY ((pf_osfp_t)0)
370 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
371 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
373 struct pf_osfp_entry {
374 SLIST_ENTRY(pf_osfp_entry) fp_entry;
377 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
378 #define PF_OSFP_GENERIC 0x002 /* generic signature */
379 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
380 #define PF_OSFP_LEN 32
381 char fp_class_nm[PF_OSFP_LEN];
382 char fp_version_nm[PF_OSFP_LEN];
383 char fp_subtype_nm[PF_OSFP_LEN];
385 #define PF_OSFP_ENTRY_EQ(a, b) \
386 ((a)->fp_os == (b)->fp_os && \
387 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
388 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
389 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
391 /* handle pf_osfp_t packing */
392 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
393 #define _FP_UNUSED_BITS 1
394 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
395 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
396 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
397 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
398 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
399 ((1 << _FP_CLASS_BITS) - 1); \
400 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
401 ((1 << _FP_VERSION_BITS) - 1);\
402 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
404 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
405 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
406 + _FP_SUBTYPE_BITS); \
407 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
409 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
412 /* the fingerprint of an OSes TCP SYN packet */
413 typedef u_int64_t pf_tcpopts_t;
414 struct pf_os_fingerprint {
415 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
416 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
417 u_int16_t fp_wsize; /* TCP window size */
418 u_int16_t fp_psize; /* ip->ip_len */
419 u_int16_t fp_mss; /* TCP MSS */
421 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
422 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
423 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
424 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
425 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
426 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
427 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
428 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
429 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
430 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
431 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
432 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
433 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
434 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
435 #define PF_OSFP_INET6 0x4000 /* IPv6 */
436 u_int8_t fp_optcnt; /* TCP option count */
437 u_int8_t fp_wscale; /* TCP window scaling */
438 u_int8_t fp_ttl; /* IPv4 TTL */
439 #define PF_OSFP_MAXTTL_OFFSET 40
440 /* TCP options packing */
441 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
442 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
443 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
444 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
445 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
446 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
447 #define PF_OSFP_MAX_OPTS \
448 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
449 / PF_OSFP_TCPOPT_BITS
451 SLIST_ENTRY(pf_os_fingerprint) fp_next;
454 struct pf_osfp_ioctl {
455 struct pf_osfp_entry fp_os;
456 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
457 u_int16_t fp_wsize; /* TCP window size */
458 u_int16_t fp_psize; /* ip->ip_len */
459 u_int16_t fp_mss; /* TCP MSS */
461 u_int8_t fp_optcnt; /* TCP option count */
462 u_int8_t fp_wscale; /* TCP window scaling */
463 u_int8_t fp_ttl; /* IPv4 TTL */
465 int fp_getnum; /* DIOCOSFPGET number */
474 #define PF_ANCHOR_NAME_SIZE 64
477 struct pf_rule_addr src;
478 struct pf_rule_addr dst;
479 #define PF_SKIP_IFP 0
480 #define PF_SKIP_DIR 1
482 #define PF_SKIP_PROTO 3
483 #define PF_SKIP_SRC_ADDR 4
484 #define PF_SKIP_SRC_PORT 5
485 #define PF_SKIP_DST_ADDR 6
486 #define PF_SKIP_DST_PORT 7
487 #define PF_SKIP_COUNT 8
488 union pf_rule_ptr skip[PF_SKIP_COUNT];
489 #define PF_RULE_LABEL_SIZE 64
490 char label[PF_RULE_LABEL_SIZE];
491 char ifname[IFNAMSIZ];
492 char qname[PF_QNAME_SIZE];
493 char pqname[PF_QNAME_SIZE];
494 #define PF_TAG_NAME_SIZE 64
495 char tagname[PF_TAG_NAME_SIZE];
496 char match_tagname[PF_TAG_NAME_SIZE];
498 char overload_tblname[PF_TABLE_NAME_SIZE];
500 TAILQ_ENTRY(pf_rule) entries;
501 struct pf_pool rpool;
503 u_int64_t evaluations;
504 u_int64_t packets[2];
508 struct pf_anchor *anchor;
509 struct pfr_ktable *overload_tbl;
511 pf_osfp_t os_fingerprint;
514 u_int32_t timeout[PFTM_MAX];
515 u_int32_t states_cur;
516 u_int32_t states_tot;
517 u_int32_t max_states;
519 u_int32_t max_src_nodes;
520 u_int32_t max_src_states;
521 u_int32_t spare1; /* netgraph */
522 u_int32_t max_src_conn;
535 u_int16_t return_icmp;
536 u_int16_t return_icmp6;
540 u_int16_t spare2; /* netgraph */
542 struct pf_rule_uid uid;
543 struct pf_rule_gid gid;
552 u_int8_t match_tag_not;
555 #define PF_STATE_NORMAL 0x1
556 #define PF_STATE_MODULATE 0x2
557 #define PF_STATE_SYNPROXY 0x3
571 u_int8_t anchor_relative;
572 u_int8_t anchor_wildcard;
574 #define PF_FLUSH 0x01
575 #define PF_FLUSH_GLOBAL 0x02
585 #define PFRULE_DROP 0x0000
586 #define PFRULE_RETURNRST 0x0001
587 #define PFRULE_FRAGMENT 0x0002
588 #define PFRULE_RETURNICMP 0x0004
589 #define PFRULE_RETURN 0x0008
590 #define PFRULE_NOSYNC 0x0010
591 #define PFRULE_SRCTRACK 0x0020 /* track source states */
592 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
593 #define PFRULE_REFS 0x0080 /* rule has references */
596 #define PFRULE_NODF 0x0100
597 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
598 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
599 #define PFRULE_RANDOMID 0x0800
600 #define PFRULE_REASSEMBLE_TCP 0x1000
601 #define PFRULE_SET_TOS 0x2000
603 /* rule flags again */
604 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
605 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
607 #define PFSTATE_HIWAT 10000 /* default state table size */
608 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
609 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
612 struct pf_threshold {
614 #define PF_THRESHOLD_MULT 1000
615 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
622 LIST_ENTRY(pf_src_node) entry;
624 struct pf_addr raddr;
625 union pf_rule_ptr rule;
628 u_int64_t packets[2];
631 struct pf_threshold conn_rate;
638 #define PFSNODE_HIWAT 10000 /* default source node table size */
640 struct pf_state_scrub {
641 struct timeval pfss_last; /* time received last packet */
642 u_int32_t pfss_tsecr; /* last echoed timestamp */
643 u_int32_t pfss_tsval; /* largest timestamp */
644 u_int32_t pfss_tsval0; /* original timestamp */
645 u_int16_t pfss_flags;
646 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
647 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
648 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
649 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
650 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
651 u_int8_t pfss_ttl; /* stashed TTL */
653 u_int32_t pfss_ts_mod; /* timestamp modulation */
656 struct pf_state_host {
662 struct pf_state_peer {
663 struct pf_state_scrub *scrub; /* state is scrubbed */
664 u_int32_t seqlo; /* Max sequence number sent */
665 u_int32_t seqhi; /* Max the other end ACKd + win */
666 u_int32_t seqdiff; /* Sequence number modulator */
667 u_int16_t max_win; /* largest window (pre scaling) */
668 u_int16_t mss; /* Maximum segment size option */
669 u_int8_t state; /* active state level */
670 u_int8_t wscale; /* window scaling factor */
671 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
675 /* Keep synced with struct pf_state_key. */
676 struct pf_state_key_cmp {
677 struct pf_addr addr[2];
684 struct pf_state_key {
685 struct pf_addr addr[2];
691 LIST_ENTRY(pf_state_key) entry;
692 TAILQ_HEAD(, pf_state) states[2];
695 /* Keep synced with struct pf_state. */
696 struct pf_state_cmp {
710 TAILQ_ENTRY(pf_state) sync_list;
711 TAILQ_ENTRY(pf_state) key_list[2];
712 LIST_ENTRY(pf_state) entry;
713 struct pf_state_peer src;
714 struct pf_state_peer dst;
715 union pf_rule_ptr rule;
716 union pf_rule_ptr anchor;
717 union pf_rule_ptr nat_rule;
718 struct pf_addr rt_addr;
719 struct pf_state_key *key[2]; /* addresses stack and wire */
721 struct pfi_kif *rt_kif;
722 struct pf_src_node *src_node;
723 struct pf_src_node *nat_src_node;
724 u_int64_t packets[2];
728 u_int32_t pfsync_time;
731 u_int8_t state_flags;
732 #define PFSTATE_ALLOWOPTS 0x01
733 #define PFSTATE_SLOPPY 0x02
734 /* was PFSTATE_PFLOW 0x04 */
735 #define PFSTATE_NOSYNC 0x08
736 #define PFSTATE_ACK 0x10
738 u_int8_t sync_state; /* PFSYNC_S_x */
741 u_int8_t sync_updates;
746 * Unified state structures for pulling states out of the kernel
747 * used by pfsync(4) and the pf(4) ioctl.
749 struct pfsync_state_scrub {
750 u_int16_t pfss_flags;
751 u_int8_t pfss_ttl; /* stashed TTL */
752 #define PFSYNC_SCRUB_FLAG_VALID 0x01
754 u_int32_t pfss_ts_mod; /* timestamp modulation */
757 struct pfsync_state_peer {
758 struct pfsync_state_scrub scrub; /* state is scrubbed */
759 u_int32_t seqlo; /* Max sequence number sent */
760 u_int32_t seqhi; /* Max the other end ACKd + win */
761 u_int32_t seqdiff; /* Sequence number modulator */
762 u_int16_t max_win; /* largest window (pre scaling) */
763 u_int16_t mss; /* Maximum segment size option */
764 u_int8_t state; /* active state level */
765 u_int8_t wscale; /* window scaling factor */
769 struct pfsync_state_key {
770 struct pf_addr addr[2];
774 struct pfsync_state {
776 char ifname[IFNAMSIZ];
777 struct pfsync_state_key key[2];
778 struct pfsync_state_peer src;
779 struct pfsync_state_peer dst;
780 struct pf_addr rt_addr;
786 u_int32_t packets[2][2];
787 u_int32_t bytes[2][2];
794 u_int8_t state_flags;
802 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
803 typedef void pfsync_insert_state_t(struct pf_state *);
804 typedef void pfsync_update_state_t(struct pf_state *);
805 typedef void pfsync_delete_state_t(struct pf_state *);
806 typedef void pfsync_clear_states_t(u_int32_t, const char *);
807 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
809 extern pfsync_state_import_t *pfsync_state_import_ptr;
810 extern pfsync_insert_state_t *pfsync_insert_state_ptr;
811 extern pfsync_update_state_t *pfsync_update_state_ptr;
812 extern pfsync_delete_state_t *pfsync_delete_state_ptr;
813 extern pfsync_clear_states_t *pfsync_clear_states_ptr;
814 extern pfsync_defer_t *pfsync_defer_ptr;
816 void pfsync_state_export(struct pfsync_state *,
822 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
823 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
824 struct pf_ruleset *, struct pf_pdesc *, int);
825 extern pflog_packet_t *pflog_packet_ptr;
827 #define V_pf_end_threads VNET(pf_end_threads)
830 #define PFSYNC_FLAG_SRCNODE 0x04
831 #define PFSYNC_FLAG_NATSRCNODE 0x08
833 /* for copies to/from network byte order */
834 /* ioctl interface also uses network byte order */
835 #define pf_state_peer_hton(s,d) do { \
836 (d)->seqlo = htonl((s)->seqlo); \
837 (d)->seqhi = htonl((s)->seqhi); \
838 (d)->seqdiff = htonl((s)->seqdiff); \
839 (d)->max_win = htons((s)->max_win); \
840 (d)->mss = htons((s)->mss); \
841 (d)->state = (s)->state; \
842 (d)->wscale = (s)->wscale; \
844 (d)->scrub.pfss_flags = \
845 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
846 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
847 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
848 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
852 #define pf_state_peer_ntoh(s,d) do { \
853 (d)->seqlo = ntohl((s)->seqlo); \
854 (d)->seqhi = ntohl((s)->seqhi); \
855 (d)->seqdiff = ntohl((s)->seqdiff); \
856 (d)->max_win = ntohs((s)->max_win); \
857 (d)->mss = ntohs((s)->mss); \
858 (d)->state = (s)->state; \
859 (d)->wscale = (s)->wscale; \
860 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
861 (d)->scrub != NULL) { \
862 (d)->scrub->pfss_flags = \
863 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
864 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
865 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
869 #define pf_state_counter_hton(s,d) do { \
870 d[0] = htonl((s>>32)&0xffffffff); \
871 d[1] = htonl(s&0xffffffff); \
874 #define pf_state_counter_from_pfsync(s) \
875 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
877 #define pf_state_counter_ntoh(s,d) do { \
883 TAILQ_HEAD(pf_rulequeue, pf_rule);
889 struct pf_rulequeue queues[2];
891 struct pf_rulequeue *ptr;
892 struct pf_rule **ptr_array;
897 } rules[PF_RULESET_MAX];
898 struct pf_anchor *anchor;
904 RB_HEAD(pf_anchor_global, pf_anchor);
905 RB_HEAD(pf_anchor_node, pf_anchor);
907 RB_ENTRY(pf_anchor) entry_global;
908 RB_ENTRY(pf_anchor) entry_node;
909 struct pf_anchor *parent;
910 struct pf_anchor_node children;
911 char name[PF_ANCHOR_NAME_SIZE];
912 char path[MAXPATHLEN];
913 struct pf_ruleset ruleset;
914 int refcnt; /* anchor rules */
915 int match; /* XXX: used for pfctl black magic */
917 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
918 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
920 #define PF_RESERVED_ANCHOR "_pf"
922 #define PFR_TFLAG_PERSIST 0x00000001
923 #define PFR_TFLAG_CONST 0x00000002
924 #define PFR_TFLAG_ACTIVE 0x00000004
925 #define PFR_TFLAG_INACTIVE 0x00000008
926 #define PFR_TFLAG_REFERENCED 0x00000010
927 #define PFR_TFLAG_REFDANCHOR 0x00000020
928 #define PFR_TFLAG_COUNTERS 0x00000040
929 /* Adjust masks below when adding flags. */
930 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
933 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
934 PFR_TFLAG_INACTIVE | \
935 PFR_TFLAG_REFERENCED | \
936 PFR_TFLAG_REFDANCHOR)
937 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
940 PFR_TFLAG_INACTIVE | \
941 PFR_TFLAG_REFERENCED | \
942 PFR_TFLAG_REFDANCHOR | \
945 struct pf_anchor_stackframe;
948 char pfrt_anchor[MAXPATHLEN];
949 char pfrt_name[PF_TABLE_NAME_SIZE];
950 u_int32_t pfrt_flags;
954 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
955 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
956 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
960 struct in_addr _pfra_ip4addr;
961 struct in6_addr _pfra_ip6addr;
968 #define pfra_ip4addr pfra_u._pfra_ip4addr
969 #define pfra_ip6addr pfra_u._pfra_ip6addr
971 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
972 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
973 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
976 struct pfr_addr pfras_a;
977 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
978 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
982 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
985 struct pfr_table pfrts_t;
986 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
987 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
988 u_int64_t pfrts_match;
989 u_int64_t pfrts_nomatch;
992 int pfrts_refcnt[PFR_REFCNT_MAX];
994 #define pfrts_name pfrts_t.pfrt_name
995 #define pfrts_flags pfrts_t.pfrt_flags
997 #ifndef _SOCKADDR_UNION_DEFINED
998 #define _SOCKADDR_UNION_DEFINED
999 union sockaddr_union {
1001 struct sockaddr_in sin;
1002 struct sockaddr_in6 sin6;
1004 #endif /* _SOCKADDR_UNION_DEFINED */
1006 struct pfr_kcounters {
1007 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1008 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1011 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1013 struct radix_node pfrke_node[2];
1014 union sockaddr_union pfrke_sa;
1015 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1016 struct pfr_kcounters *pfrke_counters;
1021 u_int8_t pfrke_mark;
1024 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1025 RB_HEAD(pfr_ktablehead, pfr_ktable);
1027 struct pfr_tstats pfrkt_ts;
1028 RB_ENTRY(pfr_ktable) pfrkt_tree;
1029 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1030 struct radix_node_head *pfrkt_ip4;
1031 struct radix_node_head *pfrkt_ip6;
1032 struct pfr_ktable *pfrkt_shadow;
1033 struct pfr_ktable *pfrkt_root;
1034 struct pf_ruleset *pfrkt_rs;
1038 #define pfrkt_t pfrkt_ts.pfrts_t
1039 #define pfrkt_name pfrkt_t.pfrt_name
1040 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1041 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1042 #define pfrkt_flags pfrkt_t.pfrt_flags
1043 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1044 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1045 #define pfrkt_packets pfrkt_ts.pfrts_packets
1046 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1047 #define pfrkt_match pfrkt_ts.pfrts_match
1048 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1049 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1051 /* keep synced with pfi_kif, used in RB_FIND */
1052 struct pfi_kif_cmp {
1053 char pfik_name[IFNAMSIZ];
1057 char pfik_name[IFNAMSIZ];
1059 RB_ENTRY(pfi_kif) _pfik_tree;
1060 LIST_ENTRY(pfi_kif) _pfik_list;
1062 #define pfik_tree _pfik_glue._pfik_tree
1063 #define pfik_list _pfik_glue._pfik_list
1064 u_int64_t pfik_packets[2][2][2];
1065 u_int64_t pfik_bytes[2][2][2];
1066 u_int32_t pfik_tzero;
1068 struct ifnet *pfik_ifp;
1069 struct ifg_group *pfik_group;
1070 u_int pfik_rulerefs;
1071 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1074 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1075 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1083 u_int64_t tot_len; /* Make Mickey money */
1089 struct icmp6_hdr *icmp6;
1094 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1095 struct pf_addr *src; /* src address */
1096 struct pf_addr *dst; /* dst address */
1099 struct pf_mtag *pf_mtag;
1101 u_int32_t p_len; /* total length of payload */
1104 u_int16_t *proto_sum;
1105 u_int16_t flags; /* Let SCRUB trigger behavior in
1106 * state code. Easier than tags */
1107 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1108 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1112 u_int8_t dir; /* direction */
1113 u_int8_t sidx; /* key index for source */
1114 u_int8_t didx; /* key index for destination */
1117 /* flags for RDR options */
1118 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1119 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1121 /* Counters for other things we want to keep track of */
1122 #define LCNT_STATES 0 /* states */
1123 #define LCNT_SRCSTATES 1 /* max-src-states */
1124 #define LCNT_SRCNODES 2 /* max-src-nodes */
1125 #define LCNT_SRCCONN 3 /* max-src-conn */
1126 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1127 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1128 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1129 #define LCNT_MAX 7 /* total+1 */
1131 #define LCNT_NAMES { \
1132 "max states per rule", \
1136 "max-src-conn-rate", \
1137 "overload table insertion", \
1138 "overload flush states", \
1142 /* UDP state enumeration */
1143 #define PFUDPS_NO_TRAFFIC 0
1144 #define PFUDPS_SINGLE 1
1145 #define PFUDPS_MULTIPLE 2
1147 #define PFUDPS_NSTATES 3 /* number of state levels */
1149 #define PFUDPS_NAMES { \
1156 /* Other protocol state enumeration */
1157 #define PFOTHERS_NO_TRAFFIC 0
1158 #define PFOTHERS_SINGLE 1
1159 #define PFOTHERS_MULTIPLE 2
1161 #define PFOTHERS_NSTATES 3 /* number of state levels */
1163 #define PFOTHERS_NAMES { \
1170 #define FCNT_STATE_SEARCH 0
1171 #define FCNT_STATE_INSERT 1
1172 #define FCNT_STATE_REMOVALS 2
1175 #define SCNT_SRC_NODE_SEARCH 0
1176 #define SCNT_SRC_NODE_INSERT 1
1177 #define SCNT_SRC_NODE_REMOVALS 2
1180 #define ACTION_SET(a, x) \
1186 #define REASON_SET(a, x) \
1190 if (x < PFRES_MAX) \
1191 V_pf_status.counters[x]++; \
1195 u_int64_t counters[PFRES_MAX];
1196 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1197 u_int64_t fcounters[FCNT_MAX];
1198 u_int64_t scounters[SCNT_MAX];
1199 u_int64_t pcounters[2][2][3];
1200 u_int64_t bcounters[2][2];
1203 u_int32_t src_nodes;
1207 char ifname[IFNAMSIZ];
1208 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1213 struct in_addr ipv4;
1214 struct in6_addr ipv6;
1219 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1220 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1223 * ioctl parameter structures
1226 struct pfioc_pooladdr {
1234 char anchor[MAXPATHLEN];
1235 struct pf_pooladdr addr;
1241 u_int32_t pool_ticket;
1243 char anchor[MAXPATHLEN];
1244 char anchor_call[MAXPATHLEN];
1245 struct pf_rule rule;
1248 struct pfioc_natlook {
1249 struct pf_addr saddr;
1250 struct pf_addr daddr;
1251 struct pf_addr rsaddr;
1252 struct pf_addr rdaddr;
1262 struct pfioc_state {
1263 struct pfsync_state state;
1266 struct pfioc_src_node_kill {
1267 sa_family_t psnk_af;
1268 struct pf_rule_addr psnk_src;
1269 struct pf_rule_addr psnk_dst;
1273 struct pfioc_state_kill {
1274 struct pf_state_cmp psk_pfcmp;
1277 struct pf_rule_addr psk_src;
1278 struct pf_rule_addr psk_dst;
1279 char psk_ifname[IFNAMSIZ];
1280 char psk_label[PF_RULE_LABEL_SIZE];
1284 struct pfioc_states {
1288 struct pfsync_state *psu_states;
1290 #define ps_buf ps_u.psu_buf
1291 #define ps_states ps_u.psu_states
1294 struct pfioc_src_nodes {
1298 struct pf_src_node *psu_src_nodes;
1300 #define psn_buf psn_u.psu_buf
1301 #define psn_src_nodes psn_u.psu_src_nodes
1305 char ifname[IFNAMSIZ];
1313 struct pfioc_limit {
1322 struct pf_altq altq;
1325 struct pfioc_qstats {
1333 struct pfioc_ruleset {
1335 char path[MAXPATHLEN];
1336 char name[PF_ANCHOR_NAME_SIZE];
1339 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1340 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1341 struct pfioc_trans {
1342 int size; /* number of elements */
1343 int esize; /* size of each element in bytes */
1344 struct pfioc_trans_e {
1346 char anchor[MAXPATHLEN];
1351 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1352 #define PFR_FLAG_DUMMY 0x00000002
1353 #define PFR_FLAG_FEEDBACK 0x00000004
1354 #define PFR_FLAG_CLSTATS 0x00000008
1355 #define PFR_FLAG_ADDRSTOO 0x00000010
1356 #define PFR_FLAG_REPLACE 0x00000020
1357 #define PFR_FLAG_ALLRSETS 0x00000040
1358 #define PFR_FLAG_ALLMASK 0x0000007F
1360 #define PFR_FLAG_USERIOCTL 0x10000000
1363 struct pfioc_table {
1364 struct pfr_table pfrio_table;
1373 u_int32_t pfrio_ticket;
1375 #define pfrio_exists pfrio_nadd
1376 #define pfrio_nzero pfrio_nadd
1377 #define pfrio_nmatch pfrio_nadd
1378 #define pfrio_naddr pfrio_size2
1379 #define pfrio_setflag pfrio_size2
1380 #define pfrio_clrflag pfrio_nadd
1382 struct pfioc_iface {
1383 char pfiio_name[IFNAMSIZ];
1396 #define DIOCSTART _IO ('D', 1)
1397 #define DIOCSTOP _IO ('D', 2)
1398 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1399 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1400 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1401 /* XXX cut 8 - 17 */
1402 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1403 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1404 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1405 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1406 #define DIOCCLRSTATUS _IO ('D', 22)
1407 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1408 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1409 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1410 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1411 /* XXX cut 26 - 28 */
1412 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1413 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1414 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1415 #define DIOCCLRRULECTRS _IO ('D', 38)
1416 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1417 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1418 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1419 #define DIOCSTARTALTQ _IO ('D', 42)
1420 #define DIOCSTOPALTQ _IO ('D', 43)
1421 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1422 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1423 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1424 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1425 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1426 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1427 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1428 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1429 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1430 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1431 /* XXX cut 55 - 57 */
1432 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1433 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1434 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1435 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1436 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1437 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1438 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1439 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1440 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1441 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1442 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1443 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1444 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1445 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1446 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1447 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1448 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1449 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1450 #define DIOCOSFPFLUSH _IO('D', 78)
1451 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1452 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1453 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1454 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1455 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1456 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1457 #define DIOCCLRSRCNODES _IO('D', 85)
1458 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1459 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1460 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1461 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1462 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1464 char ifname[IFNAMSIZ];
1467 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1471 LIST_HEAD(, pf_src_node) nodes;
1476 LIST_HEAD(, pf_state_key) keys;
1481 LIST_HEAD(, pf_state) states;
1485 #define PF_HASHSIZ (32768)
1486 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1487 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1488 VNET_DECLARE(u_long, pf_hashmask);
1489 #define V_pf_keyhash VNET(pf_keyhash)
1490 #define V_pf_idhash VNET(pf_idhash)
1491 #define V_pf_hashmask VNET(pf_hashmask)
1492 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1493 VNET_DECLARE(u_long, pf_srchashmask);
1494 #define V_pf_srchash VNET(pf_srchash)
1495 #define V_pf_srchashmask VNET(pf_srchashmask)
1497 #define PF_IDHASH(s) (be64toh((s)->id) % (V_pf_hashmask + 1))
1499 VNET_DECLARE(void *, pf_swi_cookie);
1500 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1502 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1503 #define V_pf_stateid VNET(pf_stateid)
1505 TAILQ_HEAD(pf_altqqueue, pf_altq);
1506 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1507 #define V_pf_altqs VNET(pf_altqs)
1508 VNET_DECLARE(struct pf_palist, pf_pabuf);
1509 #define V_pf_pabuf VNET(pf_pabuf)
1511 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1512 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1513 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1514 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1515 VNET_DECLARE(int, altqs_inactive_open);
1516 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1517 VNET_DECLARE(u_int32_t, ticket_pabuf);
1518 #define V_ticket_pabuf VNET(ticket_pabuf)
1519 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1520 #define V_pf_altqs_active VNET(pf_altqs_active)
1521 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1522 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1524 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1525 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1527 void pf_initialize(void);
1528 void pf_cleanup(void);
1530 struct pf_mtag *pf_get_mtag(struct mbuf *);
1532 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1534 extern void pf_altq_ifnet_event(struct ifnet *, int);
1536 VNET_DECLARE(uma_zone_t, pf_state_z);
1537 #define V_pf_state_z VNET(pf_state_z)
1538 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1539 #define V_pf_state_key_z VNET(pf_state_key_z)
1540 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1541 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1543 extern void pf_purge_thread(void *);
1544 extern void pf_intr(void *);
1545 extern void pf_purge_expired_src_nodes(void);
1547 extern int pf_unlink_state(struct pf_state *, u_int);
1548 #define PF_ENTER_LOCKED 0x00000001
1549 #define PF_RETURN_LOCKED 0x00000002
1550 extern int pf_state_insert(struct pfi_kif *,
1551 struct pf_state_key *,
1552 struct pf_state_key *,
1554 extern void pf_free_state(struct pf_state *);
1556 static __inline void
1557 pf_ref_state(struct pf_state *s)
1560 refcount_acquire(&s->refs);
1564 pf_release_state(struct pf_state *s)
1567 if (refcount_release(&s->refs)) {
1574 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1575 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1577 struct pf_src_node *pf_find_src_node(struct pf_addr *, struct pf_rule *,
1579 extern void pf_print_state(struct pf_state *);
1580 extern void pf_print_flags(u_int8_t);
1581 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1584 VNET_DECLARE(struct ifnet *, sync_ifp);
1585 #define V_sync_ifp VNET(sync_ifp);
1586 VNET_DECLARE(struct pf_rule, pf_default_rule);
1587 #define V_pf_default_rule VNET(pf_default_rule)
1588 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1590 void pf_free_rule(struct pf_rule *);
1593 int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *);
1597 int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *);
1598 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1599 struct pf_addr *, struct pf_addr *, u_int8_t);
1600 void pf_addr_inc(struct pf_addr *, sa_family_t);
1603 u_int32_t pf_new_isn(struct pf_state *);
1604 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1606 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1607 void pf_send_deferred_syn(struct pf_state *);
1608 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1609 struct pf_addr *, sa_family_t);
1610 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1611 struct pf_addr *, sa_family_t);
1612 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1614 void pf_normalize_init(void);
1615 void pf_normalize_cleanup(void);
1616 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1618 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1620 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1622 void pf_normalize_tcp_cleanup(struct pf_state *);
1623 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1624 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1625 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1626 u_short *, struct tcphdr *, struct pf_state *,
1627 struct pf_state_peer *, struct pf_state_peer *, int *);
1629 pf_state_expires(const struct pf_state *);
1630 void pf_purge_expired_fragments(void);
1631 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1633 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1634 struct pf_state_key *pf_alloc_state_key(int);
1635 void pfr_initialize(void);
1636 void pfr_cleanup(void);
1637 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1638 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1639 u_int64_t, int, int, int);
1640 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1641 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1643 pfr_attach_table(struct pf_ruleset *, char *);
1644 void pfr_detach_table(struct pfr_ktable *);
1645 int pfr_clr_tables(struct pfr_table *, int *, int);
1646 int pfr_add_tables(struct pfr_table *, int, int *, int);
1647 int pfr_del_tables(struct pfr_table *, int, int *, int);
1648 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1649 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1650 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1651 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1652 int pfr_clr_addrs(struct pfr_table *, int *, int);
1653 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1654 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1656 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1658 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1659 int *, int *, int *, int, u_int32_t);
1660 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1661 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1662 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1664 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1666 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1667 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1668 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1669 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1670 int *, u_int32_t, int);
1672 MALLOC_DECLARE(PFI_MTYPE);
1673 VNET_DECLARE(struct pfi_kif *, pfi_all);
1674 #define V_pfi_all VNET(pfi_all)
1676 void pfi_initialize(void);
1677 void pfi_cleanup(void);
1678 void pfi_kif_ref(struct pfi_kif *);
1679 void pfi_kif_unref(struct pfi_kif *);
1680 struct pfi_kif *pfi_kif_find(const char *);
1681 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1682 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1683 void pfi_kif_purge(void);
1684 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1686 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1687 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1688 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1689 void pfi_update_status(const char *, struct pf_status *);
1690 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1691 int pfi_set_flags(const char *, int);
1692 int pfi_clear_flags(const char *, int);
1694 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1695 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1696 void pf_qid2qname(u_int32_t, char *);
1698 VNET_DECLARE(struct pf_status, pf_status);
1699 #define V_pf_status VNET(pf_status)
1705 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1706 #define V_pf_limits VNET(pf_limits)
1708 #endif /* _KERNEL */
1711 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1712 #define V_pf_anchors VNET(pf_anchors)
1713 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1714 #define V_pf_main_anchor VNET(pf_main_anchor)
1715 #define pf_main_ruleset V_pf_main_anchor.ruleset
1718 /* these ruleset functions can be linked into userland programs (pfctl) */
1719 int pf_get_ruleset_number(u_int8_t);
1720 void pf_init_ruleset(struct pf_ruleset *);
1721 int pf_anchor_setup(struct pf_rule *,
1722 const struct pf_ruleset *, const char *);
1723 int pf_anchor_copyout(const struct pf_ruleset *,
1724 const struct pf_rule *, struct pfioc_rule *);
1725 void pf_anchor_remove(struct pf_rule *);
1726 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1727 struct pf_ruleset *pf_find_ruleset(const char *);
1728 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1729 void pf_rs_initialize(void);
1731 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1732 int pf_osfp_add(struct pf_osfp_ioctl *);
1734 struct pf_osfp_enlist *
1735 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1736 const struct tcphdr *);
1737 #endif /* _KERNEL */
1738 void pf_osfp_flush(void);
1739 int pf_osfp_get(struct pf_osfp_ioctl *);
1740 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1743 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1745 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1746 struct pf_ruleset **, int, struct pf_rule **,
1747 struct pf_rule **, int *);
1748 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1749 struct pf_ruleset **, int, struct pf_rule **,
1750 struct pf_rule **, int *);
1752 int pf_map_addr(u_int8_t, struct pf_rule *,
1753 struct pf_addr *, struct pf_addr *,
1754 struct pf_addr *, struct pf_src_node **);
1755 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1756 int, int, struct pfi_kif *, struct pf_src_node **,
1757 struct pf_state_key **, struct pf_state_key **,
1758 struct pf_addr *, struct pf_addr *,
1759 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1761 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1762 struct pf_addr *, u_int16_t, u_int16_t);
1763 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1764 #endif /* _KERNEL */
1766 #endif /* _NET_PFVAR_H_ */