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/refcount.h>
42 #include <net/radix.h>
43 #include <netinet/in.h>
45 #include <netpfil/pf/pf.h>
46 #include <netpfil/pf/pf_altq.h>
47 #include <netpfil/pf/pf_mtag.h>
56 } pfa; /* 128-bit address */
59 #define addr8 pfa.addr8
60 #define addr16 pfa.addr16
61 #define addr32 pfa.addr32
64 #define PFI_AFLAG_NETWORK 0x01
65 #define PFI_AFLAG_BROADCAST 0x02
66 #define PFI_AFLAG_PEER 0x04
67 #define PFI_AFLAG_MODEMASK 0x07
68 #define PFI_AFLAG_NOALIAS 0x08
76 char ifname[IFNAMSIZ];
77 char tblname[PF_TABLE_NAME_SIZE];
80 struct pfi_dynaddr *dyn;
81 struct pfr_ktable *tbl;
85 u_int8_t type; /* PF_ADDR_* */
86 u_int8_t iflags; /* PFI_AFLAG_* */
92 TAILQ_ENTRY(pfi_dynaddr) entry;
93 struct pf_addr pfid_addr4;
94 struct pf_addr pfid_mask4;
95 struct pf_addr pfid_addr6;
96 struct pf_addr pfid_mask6;
97 struct pfr_ktable *pfid_kt;
98 struct pfi_kif *pfid_kif;
99 int pfid_net; /* mask or 128 */
100 int pfid_acnt4; /* address count IPv4 */
101 int pfid_acnt6; /* address count IPv6 */
102 sa_family_t pfid_af; /* rule af */
103 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
107 * Address manipulation macros
109 #define HTONL(x) (x) = htonl((__uint32_t)(x))
110 #define HTONS(x) (x) = htons((__uint16_t)(x))
111 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
112 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
116 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
117 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
118 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
120 #define PF_STATE_LOCK(s) \
122 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
123 PF_HASHROW_LOCK(_ih); \
126 #define PF_STATE_UNLOCK(s) \
128 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
129 PF_HASHROW_UNLOCK(_ih); \
133 #define PF_STATE_LOCK_ASSERT(s) \
135 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
136 PF_HASHROW_ASSERT(_ih); \
138 #else /* !INVARIANTS */
139 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
140 #endif /* INVARIANTS */
142 extern struct mtx pf_unlnkdrules_mtx;
143 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
144 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
146 extern struct rwlock pf_rules_lock;
147 #define PF_RULES_RLOCK() rw_rlock(&pf_rules_lock)
148 #define PF_RULES_RUNLOCK() rw_runlock(&pf_rules_lock)
149 #define PF_RULES_WLOCK() rw_wlock(&pf_rules_lock)
150 #define PF_RULES_WUNLOCK() rw_wunlock(&pf_rules_lock)
151 #define PF_RULES_ASSERT() rw_assert(&pf_rules_lock, RA_LOCKED)
152 #define PF_RULES_RASSERT() rw_assert(&pf_rules_lock, RA_RLOCKED)
153 #define PF_RULES_WASSERT() rw_assert(&pf_rules_lock, RA_WLOCKED)
156 #define PFLOG_MODVER 1
157 #define PFSYNC_MODVER 1
159 #define PFLOG_MINVER 1
160 #define PFLOG_PREFVER PFLOG_MODVER
161 #define PFLOG_MAXVER 1
162 #define PFSYNC_MINVER 1
163 #define PFSYNC_PREFVER PFSYNC_MODVER
164 #define PFSYNC_MAXVER 1
174 #define PF_INET6_ONLY
180 #define PF_INET_INET6
186 #define PF_INET_INET6
190 /* Both IPv4 and IPv6 */
193 #define PF_AEQ(a, b, c) \
194 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
195 ((a)->addr32[3] == (b)->addr32[3] && \
196 (a)->addr32[2] == (b)->addr32[2] && \
197 (a)->addr32[1] == (b)->addr32[1] && \
198 (a)->addr32[0] == (b)->addr32[0])) \
200 #define PF_ANEQ(a, b, c) \
201 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
202 ((a)->addr32[3] != (b)->addr32[3] || \
203 (a)->addr32[2] != (b)->addr32[2] || \
204 (a)->addr32[1] != (b)->addr32[1] || \
205 (a)->addr32[0] != (b)->addr32[0])) \
207 #define PF_AZERO(a, c) \
208 ((c == AF_INET && !(a)->addr32[0]) || \
209 (!(a)->addr32[0] && !(a)->addr32[1] && \
210 !(a)->addr32[2] && !(a)->addr32[3] )) \
212 #define PF_MATCHA(n, a, m, b, f) \
213 pf_match_addr(n, a, m, b, f)
215 #define PF_ACPY(a, b, f) \
218 #define PF_AINC(a, f) \
221 #define PF_POOLMASK(a, b, c, d, f) \
222 pf_poolmask(a, b, c, d, f)
230 #define PF_AEQ(a, b, c) \
231 ((a)->addr32[3] == (b)->addr32[3] && \
232 (a)->addr32[2] == (b)->addr32[2] && \
233 (a)->addr32[1] == (b)->addr32[1] && \
234 (a)->addr32[0] == (b)->addr32[0]) \
236 #define PF_ANEQ(a, b, c) \
237 ((a)->addr32[3] != (b)->addr32[3] || \
238 (a)->addr32[2] != (b)->addr32[2] || \
239 (a)->addr32[1] != (b)->addr32[1] || \
240 (a)->addr32[0] != (b)->addr32[0]) \
242 #define PF_AZERO(a, c) \
243 (!(a)->addr32[0] && \
248 #define PF_MATCHA(n, a, m, b, f) \
249 pf_match_addr(n, a, m, b, f)
251 #define PF_ACPY(a, b, f) \
254 #define PF_AINC(a, f) \
257 #define PF_POOLMASK(a, b, c, d, f) \
258 pf_poolmask(a, b, c, d, f)
265 #define PF_AEQ(a, b, c) \
266 ((a)->addr32[0] == (b)->addr32[0])
268 #define PF_ANEQ(a, b, c) \
269 ((a)->addr32[0] != (b)->addr32[0])
271 #define PF_AZERO(a, c) \
274 #define PF_MATCHA(n, a, m, b, f) \
275 pf_match_addr(n, a, m, b, f)
277 #define PF_ACPY(a, b, f) \
278 (a)->v4.s_addr = (b)->v4.s_addr
280 #define PF_AINC(a, f) \
282 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
285 #define PF_POOLMASK(a, b, c, d, f) \
287 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
288 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
291 #endif /* PF_INET_ONLY */
292 #endif /* PF_INET6_ONLY */
293 #endif /* PF_INET_INET6 */
296 * XXX callers not FIB-aware in our version of pf yet.
297 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
299 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
301 (((aw)->type == PF_ADDR_NOROUTE && \
302 pf_routable((x), (af), NULL, (rtid))) || \
303 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
304 pf_routable((x), (af), (ifp), (rtid))) || \
305 ((aw)->type == PF_ADDR_TABLE && \
306 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
307 ((aw)->type == PF_ADDR_DYNIFTL && \
308 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
309 ((aw)->type == PF_ADDR_RANGE && \
310 !pf_match_addr_range(&(aw)->v.a.addr, \
311 &(aw)->v.a.mask, (x), (af))) || \
312 ((aw)->type == PF_ADDR_ADDRMASK && \
313 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
314 !PF_MATCHA(0, &(aw)->v.a.addr, \
315 &(aw)->v.a.mask, (x), (af))))) != \
330 struct pf_rule_addr {
331 struct pf_addr_wrap addr;
338 struct pf_addr_wrap addr;
339 TAILQ_ENTRY(pf_pooladdr) entries;
340 char ifname[IFNAMSIZ];
344 TAILQ_HEAD(pf_palist, pf_pooladdr);
346 struct pf_poolhashkey {
351 } pfk; /* 128-bit hash key */
352 #define key8 pfk.key8
353 #define key16 pfk.key16
354 #define key32 pfk.key32
358 struct pf_palist list;
359 struct pf_pooladdr *cur;
360 struct pf_poolhashkey key;
361 struct pf_addr counter;
363 u_int16_t proxy_port[2];
368 /* A packed Operating System description for fingerprinting */
369 typedef u_int32_t pf_osfp_t;
370 #define PF_OSFP_ANY ((pf_osfp_t)0)
371 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
372 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
374 struct pf_osfp_entry {
375 SLIST_ENTRY(pf_osfp_entry) fp_entry;
378 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
379 #define PF_OSFP_GENERIC 0x002 /* generic signature */
380 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
381 #define PF_OSFP_LEN 32
382 char fp_class_nm[PF_OSFP_LEN];
383 char fp_version_nm[PF_OSFP_LEN];
384 char fp_subtype_nm[PF_OSFP_LEN];
386 #define PF_OSFP_ENTRY_EQ(a, b) \
387 ((a)->fp_os == (b)->fp_os && \
388 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
389 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
390 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
392 /* handle pf_osfp_t packing */
393 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
394 #define _FP_UNUSED_BITS 1
395 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
396 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
397 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
398 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
399 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
400 ((1 << _FP_CLASS_BITS) - 1); \
401 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
402 ((1 << _FP_VERSION_BITS) - 1);\
403 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
405 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
406 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
407 + _FP_SUBTYPE_BITS); \
408 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
410 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
413 /* the fingerprint of an OSes TCP SYN packet */
414 typedef u_int64_t pf_tcpopts_t;
415 struct pf_os_fingerprint {
416 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
417 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
418 u_int16_t fp_wsize; /* TCP window size */
419 u_int16_t fp_psize; /* ip->ip_len */
420 u_int16_t fp_mss; /* TCP MSS */
422 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
423 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
424 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
425 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
426 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
427 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
428 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
429 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
430 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
431 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
432 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
433 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
434 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
435 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
436 #define PF_OSFP_INET6 0x4000 /* IPv6 */
437 u_int8_t fp_optcnt; /* TCP option count */
438 u_int8_t fp_wscale; /* TCP window scaling */
439 u_int8_t fp_ttl; /* IPv4 TTL */
440 #define PF_OSFP_MAXTTL_OFFSET 40
441 /* TCP options packing */
442 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
443 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
444 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
445 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
446 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
447 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
448 #define PF_OSFP_MAX_OPTS \
449 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
450 / PF_OSFP_TCPOPT_BITS
452 SLIST_ENTRY(pf_os_fingerprint) fp_next;
455 struct pf_osfp_ioctl {
456 struct pf_osfp_entry fp_os;
457 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
458 u_int16_t fp_wsize; /* TCP window size */
459 u_int16_t fp_psize; /* ip->ip_len */
460 u_int16_t fp_mss; /* TCP MSS */
462 u_int8_t fp_optcnt; /* TCP option count */
463 u_int8_t fp_wscale; /* TCP window scaling */
464 u_int8_t fp_ttl; /* IPv4 TTL */
466 int fp_getnum; /* DIOCOSFPGET number */
475 #define PF_ANCHOR_NAME_SIZE 64
478 struct pf_rule_addr src;
479 struct pf_rule_addr dst;
480 #define PF_SKIP_IFP 0
481 #define PF_SKIP_DIR 1
483 #define PF_SKIP_PROTO 3
484 #define PF_SKIP_SRC_ADDR 4
485 #define PF_SKIP_SRC_PORT 5
486 #define PF_SKIP_DST_ADDR 6
487 #define PF_SKIP_DST_PORT 7
488 #define PF_SKIP_COUNT 8
489 union pf_rule_ptr skip[PF_SKIP_COUNT];
490 #define PF_RULE_LABEL_SIZE 64
491 char label[PF_RULE_LABEL_SIZE];
492 char ifname[IFNAMSIZ];
493 char qname[PF_QNAME_SIZE];
494 char pqname[PF_QNAME_SIZE];
495 #define PF_TAG_NAME_SIZE 64
496 char tagname[PF_TAG_NAME_SIZE];
497 char match_tagname[PF_TAG_NAME_SIZE];
499 char overload_tblname[PF_TABLE_NAME_SIZE];
501 TAILQ_ENTRY(pf_rule) entries;
502 struct pf_pool rpool;
504 u_int64_t evaluations;
505 u_int64_t packets[2];
509 struct pf_anchor *anchor;
510 struct pfr_ktable *overload_tbl;
512 pf_osfp_t os_fingerprint;
515 u_int32_t timeout[PFTM_MAX];
516 u_int32_t max_states;
517 u_int32_t max_src_nodes;
518 u_int32_t max_src_states;
519 u_int32_t max_src_conn;
532 counter_u64_t states_cur;
533 counter_u64_t states_tot;
534 counter_u64_t src_nodes;
536 u_int16_t return_icmp;
537 u_int16_t return_icmp6;
541 u_int16_t spare2; /* netgraph */
543 struct pf_rule_uid uid;
544 struct pf_rule_gid gid;
553 u_int8_t match_tag_not;
556 #define PF_STATE_NORMAL 0x1
557 #define PF_STATE_MODULATE 0x2
558 #define PF_STATE_SYNPROXY 0x3
572 u_int8_t anchor_relative;
573 u_int8_t anchor_wildcard;
575 #define PF_FLUSH 0x01
576 #define PF_FLUSH_GLOBAL 0x02
586 #define PFRULE_DROP 0x0000
587 #define PFRULE_RETURNRST 0x0001
588 #define PFRULE_FRAGMENT 0x0002
589 #define PFRULE_RETURNICMP 0x0004
590 #define PFRULE_RETURN 0x0008
591 #define PFRULE_NOSYNC 0x0010
592 #define PFRULE_SRCTRACK 0x0020 /* track source states */
593 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
594 #define PFRULE_REFS 0x0080 /* rule has references */
597 #define PFRULE_NODF 0x0100
598 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
599 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
600 #define PFRULE_RANDOMID 0x0800
601 #define PFRULE_REASSEMBLE_TCP 0x1000
602 #define PFRULE_SET_TOS 0x2000
604 /* rule flags again */
605 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
606 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
608 #define PFSTATE_HIWAT 10000 /* default state table size */
609 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
610 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
613 struct pf_threshold {
615 #define PF_THRESHOLD_MULT 1000
616 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
623 LIST_ENTRY(pf_src_node) entry;
625 struct pf_addr raddr;
626 union pf_rule_ptr rule;
629 u_int64_t packets[2];
632 struct pf_threshold conn_rate;
639 #define PFSNODE_HIWAT 10000 /* default source node table size */
641 struct pf_state_scrub {
642 struct timeval pfss_last; /* time received last packet */
643 u_int32_t pfss_tsecr; /* last echoed timestamp */
644 u_int32_t pfss_tsval; /* largest timestamp */
645 u_int32_t pfss_tsval0; /* original timestamp */
646 u_int16_t pfss_flags;
647 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
648 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
649 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
650 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
651 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
652 u_int8_t pfss_ttl; /* stashed TTL */
654 u_int32_t pfss_ts_mod; /* timestamp modulation */
657 struct pf_state_host {
663 struct pf_state_peer {
664 struct pf_state_scrub *scrub; /* state is scrubbed */
665 u_int32_t seqlo; /* Max sequence number sent */
666 u_int32_t seqhi; /* Max the other end ACKd + win */
667 u_int32_t seqdiff; /* Sequence number modulator */
668 u_int16_t max_win; /* largest window (pre scaling) */
669 u_int16_t mss; /* Maximum segment size option */
670 u_int8_t state; /* active state level */
671 u_int8_t wscale; /* window scaling factor */
672 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
676 /* Keep synced with struct pf_state_key. */
677 struct pf_state_key_cmp {
678 struct pf_addr addr[2];
685 struct pf_state_key {
686 struct pf_addr addr[2];
692 LIST_ENTRY(pf_state_key) entry;
693 TAILQ_HEAD(, pf_state) states[2];
696 /* Keep synced with struct pf_state. */
697 struct pf_state_cmp {
711 TAILQ_ENTRY(pf_state) sync_list;
712 TAILQ_ENTRY(pf_state) key_list[2];
713 LIST_ENTRY(pf_state) entry;
714 struct pf_state_peer src;
715 struct pf_state_peer dst;
716 union pf_rule_ptr rule;
717 union pf_rule_ptr anchor;
718 union pf_rule_ptr nat_rule;
719 struct pf_addr rt_addr;
720 struct pf_state_key *key[2]; /* addresses stack and wire */
722 struct pfi_kif *rt_kif;
723 struct pf_src_node *src_node;
724 struct pf_src_node *nat_src_node;
725 u_int64_t packets[2];
729 u_int32_t pfsync_time;
732 u_int8_t state_flags;
733 #define PFSTATE_ALLOWOPTS 0x01
734 #define PFSTATE_SLOPPY 0x02
735 /* was PFSTATE_PFLOW 0x04 */
736 #define PFSTATE_NOSYNC 0x08
737 #define PFSTATE_ACK 0x10
739 u_int8_t sync_state; /* PFSYNC_S_x */
742 u_int8_t sync_updates;
747 * Unified state structures for pulling states out of the kernel
748 * used by pfsync(4) and the pf(4) ioctl.
750 struct pfsync_state_scrub {
751 u_int16_t pfss_flags;
752 u_int8_t pfss_ttl; /* stashed TTL */
753 #define PFSYNC_SCRUB_FLAG_VALID 0x01
755 u_int32_t pfss_ts_mod; /* timestamp modulation */
758 struct pfsync_state_peer {
759 struct pfsync_state_scrub scrub; /* state is scrubbed */
760 u_int32_t seqlo; /* Max sequence number sent */
761 u_int32_t seqhi; /* Max the other end ACKd + win */
762 u_int32_t seqdiff; /* Sequence number modulator */
763 u_int16_t max_win; /* largest window (pre scaling) */
764 u_int16_t mss; /* Maximum segment size option */
765 u_int8_t state; /* active state level */
766 u_int8_t wscale; /* window scaling factor */
770 struct pfsync_state_key {
771 struct pf_addr addr[2];
775 struct pfsync_state {
777 char ifname[IFNAMSIZ];
778 struct pfsync_state_key key[2];
779 struct pfsync_state_peer src;
780 struct pfsync_state_peer dst;
781 struct pf_addr rt_addr;
787 u_int32_t packets[2][2];
788 u_int32_t bytes[2][2];
795 u_int8_t state_flags;
803 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
804 typedef void pfsync_insert_state_t(struct pf_state *);
805 typedef void pfsync_update_state_t(struct pf_state *);
806 typedef void pfsync_delete_state_t(struct pf_state *);
807 typedef void pfsync_clear_states_t(u_int32_t, const char *);
808 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
810 extern pfsync_state_import_t *pfsync_state_import_ptr;
811 extern pfsync_insert_state_t *pfsync_insert_state_ptr;
812 extern pfsync_update_state_t *pfsync_update_state_ptr;
813 extern pfsync_delete_state_t *pfsync_delete_state_ptr;
814 extern pfsync_clear_states_t *pfsync_clear_states_ptr;
815 extern pfsync_defer_t *pfsync_defer_ptr;
817 void pfsync_state_export(struct pfsync_state *,
823 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
824 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
825 struct pf_ruleset *, struct pf_pdesc *, int);
826 extern pflog_packet_t *pflog_packet_ptr;
828 #define V_pf_end_threads VNET(pf_end_threads)
831 #define PFSYNC_FLAG_SRCNODE 0x04
832 #define PFSYNC_FLAG_NATSRCNODE 0x08
834 /* for copies to/from network byte order */
835 /* ioctl interface also uses network byte order */
836 #define pf_state_peer_hton(s,d) do { \
837 (d)->seqlo = htonl((s)->seqlo); \
838 (d)->seqhi = htonl((s)->seqhi); \
839 (d)->seqdiff = htonl((s)->seqdiff); \
840 (d)->max_win = htons((s)->max_win); \
841 (d)->mss = htons((s)->mss); \
842 (d)->state = (s)->state; \
843 (d)->wscale = (s)->wscale; \
845 (d)->scrub.pfss_flags = \
846 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
847 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
848 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
849 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
853 #define pf_state_peer_ntoh(s,d) do { \
854 (d)->seqlo = ntohl((s)->seqlo); \
855 (d)->seqhi = ntohl((s)->seqhi); \
856 (d)->seqdiff = ntohl((s)->seqdiff); \
857 (d)->max_win = ntohs((s)->max_win); \
858 (d)->mss = ntohs((s)->mss); \
859 (d)->state = (s)->state; \
860 (d)->wscale = (s)->wscale; \
861 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
862 (d)->scrub != NULL) { \
863 (d)->scrub->pfss_flags = \
864 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
865 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
866 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
870 #define pf_state_counter_hton(s,d) do { \
871 d[0] = htonl((s>>32)&0xffffffff); \
872 d[1] = htonl(s&0xffffffff); \
875 #define pf_state_counter_from_pfsync(s) \
876 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
878 #define pf_state_counter_ntoh(s,d) do { \
884 TAILQ_HEAD(pf_rulequeue, pf_rule);
890 struct pf_rulequeue queues[2];
892 struct pf_rulequeue *ptr;
893 struct pf_rule **ptr_array;
898 } rules[PF_RULESET_MAX];
899 struct pf_anchor *anchor;
905 RB_HEAD(pf_anchor_global, pf_anchor);
906 RB_HEAD(pf_anchor_node, pf_anchor);
908 RB_ENTRY(pf_anchor) entry_global;
909 RB_ENTRY(pf_anchor) entry_node;
910 struct pf_anchor *parent;
911 struct pf_anchor_node children;
912 char name[PF_ANCHOR_NAME_SIZE];
913 char path[MAXPATHLEN];
914 struct pf_ruleset ruleset;
915 int refcnt; /* anchor rules */
916 int match; /* XXX: used for pfctl black magic */
918 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
919 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
921 #define PF_RESERVED_ANCHOR "_pf"
923 #define PFR_TFLAG_PERSIST 0x00000001
924 #define PFR_TFLAG_CONST 0x00000002
925 #define PFR_TFLAG_ACTIVE 0x00000004
926 #define PFR_TFLAG_INACTIVE 0x00000008
927 #define PFR_TFLAG_REFERENCED 0x00000010
928 #define PFR_TFLAG_REFDANCHOR 0x00000020
929 #define PFR_TFLAG_COUNTERS 0x00000040
930 /* Adjust masks below when adding flags. */
931 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
934 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
935 PFR_TFLAG_INACTIVE | \
936 PFR_TFLAG_REFERENCED | \
937 PFR_TFLAG_REFDANCHOR)
938 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
941 PFR_TFLAG_INACTIVE | \
942 PFR_TFLAG_REFERENCED | \
943 PFR_TFLAG_REFDANCHOR | \
946 struct pf_anchor_stackframe;
949 char pfrt_anchor[MAXPATHLEN];
950 char pfrt_name[PF_TABLE_NAME_SIZE];
951 u_int32_t pfrt_flags;
955 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
956 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
957 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
961 struct in_addr _pfra_ip4addr;
962 struct in6_addr _pfra_ip6addr;
969 #define pfra_ip4addr pfra_u._pfra_ip4addr
970 #define pfra_ip6addr pfra_u._pfra_ip6addr
972 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
973 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
974 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
977 struct pfr_addr pfras_a;
978 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
979 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
983 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
986 struct pfr_table pfrts_t;
987 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
988 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
989 u_int64_t pfrts_match;
990 u_int64_t pfrts_nomatch;
993 int pfrts_refcnt[PFR_REFCNT_MAX];
995 #define pfrts_name pfrts_t.pfrt_name
996 #define pfrts_flags pfrts_t.pfrt_flags
998 #ifndef _SOCKADDR_UNION_DEFINED
999 #define _SOCKADDR_UNION_DEFINED
1000 union sockaddr_union {
1002 struct sockaddr_in sin;
1003 struct sockaddr_in6 sin6;
1005 #endif /* _SOCKADDR_UNION_DEFINED */
1007 struct pfr_kcounters {
1008 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1009 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1012 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1014 struct radix_node pfrke_node[2];
1015 union sockaddr_union pfrke_sa;
1016 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1017 struct pfr_kcounters *pfrke_counters;
1022 u_int8_t pfrke_mark;
1025 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1026 RB_HEAD(pfr_ktablehead, pfr_ktable);
1028 struct pfr_tstats pfrkt_ts;
1029 RB_ENTRY(pfr_ktable) pfrkt_tree;
1030 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1031 struct radix_node_head *pfrkt_ip4;
1032 struct radix_node_head *pfrkt_ip6;
1033 struct pfr_ktable *pfrkt_shadow;
1034 struct pfr_ktable *pfrkt_root;
1035 struct pf_ruleset *pfrkt_rs;
1039 #define pfrkt_t pfrkt_ts.pfrts_t
1040 #define pfrkt_name pfrkt_t.pfrt_name
1041 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1042 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1043 #define pfrkt_flags pfrkt_t.pfrt_flags
1044 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1045 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1046 #define pfrkt_packets pfrkt_ts.pfrts_packets
1047 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1048 #define pfrkt_match pfrkt_ts.pfrts_match
1049 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1050 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1052 /* keep synced with pfi_kif, used in RB_FIND */
1053 struct pfi_kif_cmp {
1054 char pfik_name[IFNAMSIZ];
1058 char pfik_name[IFNAMSIZ];
1060 RB_ENTRY(pfi_kif) _pfik_tree;
1061 LIST_ENTRY(pfi_kif) _pfik_list;
1063 #define pfik_tree _pfik_glue._pfik_tree
1064 #define pfik_list _pfik_glue._pfik_list
1065 u_int64_t pfik_packets[2][2][2];
1066 u_int64_t pfik_bytes[2][2][2];
1067 u_int32_t pfik_tzero;
1069 struct ifnet *pfik_ifp;
1070 struct ifg_group *pfik_group;
1071 u_int pfik_rulerefs;
1072 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1075 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1076 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1084 u_int64_t tot_len; /* Make Mickey money */
1090 struct icmp6_hdr *icmp6;
1095 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1096 struct pf_addr *src; /* src address */
1097 struct pf_addr *dst; /* dst address */
1100 struct pf_mtag *pf_mtag;
1102 u_int32_t p_len; /* total length of payload */
1105 u_int16_t *proto_sum;
1106 u_int16_t flags; /* Let SCRUB trigger behavior in
1107 * state code. Easier than tags */
1108 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1109 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1113 u_int8_t dir; /* direction */
1114 u_int8_t sidx; /* key index for source */
1115 u_int8_t didx; /* key index for destination */
1118 /* flags for RDR options */
1119 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1120 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1122 /* Counters for other things we want to keep track of */
1123 #define LCNT_STATES 0 /* states */
1124 #define LCNT_SRCSTATES 1 /* max-src-states */
1125 #define LCNT_SRCNODES 2 /* max-src-nodes */
1126 #define LCNT_SRCCONN 3 /* max-src-conn */
1127 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1128 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1129 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1130 #define LCNT_MAX 7 /* total+1 */
1132 #define LCNT_NAMES { \
1133 "max states per rule", \
1137 "max-src-conn-rate", \
1138 "overload table insertion", \
1139 "overload flush states", \
1143 /* UDP state enumeration */
1144 #define PFUDPS_NO_TRAFFIC 0
1145 #define PFUDPS_SINGLE 1
1146 #define PFUDPS_MULTIPLE 2
1148 #define PFUDPS_NSTATES 3 /* number of state levels */
1150 #define PFUDPS_NAMES { \
1157 /* Other protocol state enumeration */
1158 #define PFOTHERS_NO_TRAFFIC 0
1159 #define PFOTHERS_SINGLE 1
1160 #define PFOTHERS_MULTIPLE 2
1162 #define PFOTHERS_NSTATES 3 /* number of state levels */
1164 #define PFOTHERS_NAMES { \
1171 #define FCNT_STATE_SEARCH 0
1172 #define FCNT_STATE_INSERT 1
1173 #define FCNT_STATE_REMOVALS 2
1176 #define SCNT_SRC_NODE_SEARCH 0
1177 #define SCNT_SRC_NODE_INSERT 1
1178 #define SCNT_SRC_NODE_REMOVALS 2
1181 #define ACTION_SET(a, x) \
1187 #define REASON_SET(a, x) \
1191 if (x < PFRES_MAX) \
1192 V_pf_status.counters[x]++; \
1196 u_int64_t counters[PFRES_MAX];
1197 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1198 u_int64_t fcounters[FCNT_MAX];
1199 u_int64_t scounters[SCNT_MAX];
1200 u_int64_t pcounters[2][2][3];
1201 u_int64_t bcounters[2][2];
1204 u_int32_t src_nodes;
1208 char ifname[IFNAMSIZ];
1209 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1214 struct in_addr ipv4;
1215 struct in6_addr ipv6;
1220 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1221 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1224 * ioctl parameter structures
1227 struct pfioc_pooladdr {
1235 char anchor[MAXPATHLEN];
1236 struct pf_pooladdr addr;
1242 u_int32_t pool_ticket;
1244 char anchor[MAXPATHLEN];
1245 char anchor_call[MAXPATHLEN];
1246 struct pf_rule rule;
1249 struct pfioc_natlook {
1250 struct pf_addr saddr;
1251 struct pf_addr daddr;
1252 struct pf_addr rsaddr;
1253 struct pf_addr rdaddr;
1263 struct pfioc_state {
1264 struct pfsync_state state;
1267 struct pfioc_src_node_kill {
1268 sa_family_t psnk_af;
1269 struct pf_rule_addr psnk_src;
1270 struct pf_rule_addr psnk_dst;
1274 struct pfioc_state_kill {
1275 struct pf_state_cmp psk_pfcmp;
1278 struct pf_rule_addr psk_src;
1279 struct pf_rule_addr psk_dst;
1280 char psk_ifname[IFNAMSIZ];
1281 char psk_label[PF_RULE_LABEL_SIZE];
1285 struct pfioc_states {
1289 struct pfsync_state *psu_states;
1291 #define ps_buf ps_u.psu_buf
1292 #define ps_states ps_u.psu_states
1295 struct pfioc_src_nodes {
1299 struct pf_src_node *psu_src_nodes;
1301 #define psn_buf psn_u.psu_buf
1302 #define psn_src_nodes psn_u.psu_src_nodes
1306 char ifname[IFNAMSIZ];
1314 struct pfioc_limit {
1323 struct pf_altq altq;
1326 struct pfioc_qstats {
1334 struct pfioc_ruleset {
1336 char path[MAXPATHLEN];
1337 char name[PF_ANCHOR_NAME_SIZE];
1340 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1341 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1342 struct pfioc_trans {
1343 int size; /* number of elements */
1344 int esize; /* size of each element in bytes */
1345 struct pfioc_trans_e {
1347 char anchor[MAXPATHLEN];
1352 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1353 #define PFR_FLAG_DUMMY 0x00000002
1354 #define PFR_FLAG_FEEDBACK 0x00000004
1355 #define PFR_FLAG_CLSTATS 0x00000008
1356 #define PFR_FLAG_ADDRSTOO 0x00000010
1357 #define PFR_FLAG_REPLACE 0x00000020
1358 #define PFR_FLAG_ALLRSETS 0x00000040
1359 #define PFR_FLAG_ALLMASK 0x0000007F
1361 #define PFR_FLAG_USERIOCTL 0x10000000
1364 struct pfioc_table {
1365 struct pfr_table pfrio_table;
1374 u_int32_t pfrio_ticket;
1376 #define pfrio_exists pfrio_nadd
1377 #define pfrio_nzero pfrio_nadd
1378 #define pfrio_nmatch pfrio_nadd
1379 #define pfrio_naddr pfrio_size2
1380 #define pfrio_setflag pfrio_size2
1381 #define pfrio_clrflag pfrio_nadd
1383 struct pfioc_iface {
1384 char pfiio_name[IFNAMSIZ];
1397 #define DIOCSTART _IO ('D', 1)
1398 #define DIOCSTOP _IO ('D', 2)
1399 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1400 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1401 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1402 /* XXX cut 8 - 17 */
1403 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1404 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1405 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1406 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1407 #define DIOCCLRSTATUS _IO ('D', 22)
1408 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1409 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1410 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1411 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1412 /* XXX cut 26 - 28 */
1413 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1414 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1415 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1416 #define DIOCCLRRULECTRS _IO ('D', 38)
1417 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1418 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1419 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1420 #define DIOCSTARTALTQ _IO ('D', 42)
1421 #define DIOCSTOPALTQ _IO ('D', 43)
1422 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1423 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1424 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1425 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1426 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1427 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1428 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1429 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1430 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1431 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1432 /* XXX cut 55 - 57 */
1433 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1434 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1435 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1436 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1437 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1438 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1439 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1440 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1441 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1442 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1443 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1444 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1445 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1446 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1447 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1448 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1449 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1450 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1451 #define DIOCOSFPFLUSH _IO('D', 78)
1452 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1453 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1454 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1455 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1456 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1457 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1458 #define DIOCCLRSRCNODES _IO('D', 85)
1459 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1460 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1461 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1462 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1463 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1465 char ifname[IFNAMSIZ];
1468 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1471 LIST_HEAD(pf_src_node_list, pf_src_node);
1473 struct pf_src_node_list nodes;
1478 LIST_HEAD(, pf_state_key) keys;
1483 LIST_HEAD(, pf_state) states;
1487 #define PF_HASHSIZ (32768)
1488 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1489 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1490 VNET_DECLARE(u_long, pf_hashmask);
1491 #define V_pf_keyhash VNET(pf_keyhash)
1492 #define V_pf_idhash VNET(pf_idhash)
1493 #define V_pf_hashmask VNET(pf_hashmask)
1494 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1495 VNET_DECLARE(u_long, pf_srchashmask);
1496 #define V_pf_srchash VNET(pf_srchash)
1497 #define V_pf_srchashmask VNET(pf_srchashmask)
1499 #define PF_IDHASH(s) (be64toh((s)->id) % (V_pf_hashmask + 1))
1501 VNET_DECLARE(void *, pf_swi_cookie);
1502 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1504 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1505 #define V_pf_stateid VNET(pf_stateid)
1507 TAILQ_HEAD(pf_altqqueue, pf_altq);
1508 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1509 #define V_pf_altqs VNET(pf_altqs)
1510 VNET_DECLARE(struct pf_palist, pf_pabuf);
1511 #define V_pf_pabuf VNET(pf_pabuf)
1513 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1514 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1515 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1516 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1517 VNET_DECLARE(int, altqs_inactive_open);
1518 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1519 VNET_DECLARE(u_int32_t, ticket_pabuf);
1520 #define V_ticket_pabuf VNET(ticket_pabuf)
1521 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1522 #define V_pf_altqs_active VNET(pf_altqs_active)
1523 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1524 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1526 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1527 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1529 void pf_initialize(void);
1530 void pf_cleanup(void);
1532 struct pf_mtag *pf_get_mtag(struct mbuf *);
1534 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1536 extern void pf_altq_ifnet_event(struct ifnet *, int);
1538 VNET_DECLARE(uma_zone_t, pf_state_z);
1539 #define V_pf_state_z VNET(pf_state_z)
1540 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1541 #define V_pf_state_key_z VNET(pf_state_key_z)
1542 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1543 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1545 extern void pf_purge_thread(void *);
1546 extern void pf_intr(void *);
1547 extern void pf_purge_expired_src_nodes(void);
1549 extern int pf_unlink_state(struct pf_state *, u_int);
1550 #define PF_ENTER_LOCKED 0x00000001
1551 #define PF_RETURN_LOCKED 0x00000002
1552 extern int pf_state_insert(struct pfi_kif *,
1553 struct pf_state_key *,
1554 struct pf_state_key *,
1556 extern void pf_free_state(struct pf_state *);
1558 static __inline void
1559 pf_ref_state(struct pf_state *s)
1562 refcount_acquire(&s->refs);
1566 pf_release_state(struct pf_state *s)
1569 if (refcount_release(&s->refs)) {
1576 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1577 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1579 extern struct pf_src_node *pf_find_src_node(struct pf_addr *,
1580 struct pf_rule *, sa_family_t, int);
1581 extern void pf_unlink_src_node(struct pf_src_node *);
1582 extern void pf_unlink_src_node_locked(struct pf_src_node *);
1583 extern u_int pf_free_src_nodes(struct pf_src_node_list *);
1584 extern void pf_print_state(struct pf_state *);
1585 extern void pf_print_flags(u_int8_t);
1586 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1589 VNET_DECLARE(struct ifnet *, sync_ifp);
1590 #define V_sync_ifp VNET(sync_ifp);
1591 VNET_DECLARE(struct pf_rule, pf_default_rule);
1592 #define V_pf_default_rule VNET(pf_default_rule)
1593 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1595 void pf_free_rule(struct pf_rule *);
1598 int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *);
1602 int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *);
1603 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1604 struct pf_addr *, struct pf_addr *, u_int8_t);
1605 void pf_addr_inc(struct pf_addr *, sa_family_t);
1608 u_int32_t pf_new_isn(struct pf_state *);
1609 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1611 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1612 void pf_send_deferred_syn(struct pf_state *);
1613 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1614 struct pf_addr *, sa_family_t);
1615 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1616 struct pf_addr *, sa_family_t);
1617 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1619 void pf_normalize_init(void);
1620 void pf_normalize_cleanup(void);
1621 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1623 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1625 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1627 void pf_normalize_tcp_cleanup(struct pf_state *);
1628 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1629 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1630 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1631 u_short *, struct tcphdr *, struct pf_state *,
1632 struct pf_state_peer *, struct pf_state_peer *, int *);
1634 pf_state_expires(const struct pf_state *);
1635 void pf_purge_expired_fragments(void);
1636 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1638 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1639 struct pf_state_key *pf_alloc_state_key(int);
1640 void pfr_initialize(void);
1641 void pfr_cleanup(void);
1642 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1643 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1644 u_int64_t, int, int, int);
1645 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1646 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1648 pfr_attach_table(struct pf_ruleset *, char *);
1649 void pfr_detach_table(struct pfr_ktable *);
1650 int pfr_clr_tables(struct pfr_table *, int *, int);
1651 int pfr_add_tables(struct pfr_table *, int, int *, int);
1652 int pfr_del_tables(struct pfr_table *, int, int *, int);
1653 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1654 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1655 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1656 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1657 int pfr_clr_addrs(struct pfr_table *, int *, int);
1658 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1659 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1661 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1663 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1664 int *, int *, int *, int, u_int32_t);
1665 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1666 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1667 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1669 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1671 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1672 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1673 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1674 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1675 int *, u_int32_t, int);
1677 MALLOC_DECLARE(PFI_MTYPE);
1678 VNET_DECLARE(struct pfi_kif *, pfi_all);
1679 #define V_pfi_all VNET(pfi_all)
1681 void pfi_initialize(void);
1682 void pfi_cleanup(void);
1683 void pfi_kif_ref(struct pfi_kif *);
1684 void pfi_kif_unref(struct pfi_kif *);
1685 struct pfi_kif *pfi_kif_find(const char *);
1686 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1687 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1688 void pfi_kif_purge(void);
1689 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1691 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1692 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1693 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1694 void pfi_update_status(const char *, struct pf_status *);
1695 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1696 int pfi_set_flags(const char *, int);
1697 int pfi_clear_flags(const char *, int);
1699 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1700 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1701 void pf_qid2qname(u_int32_t, char *);
1703 VNET_DECLARE(struct pf_status, pf_status);
1704 #define V_pf_status VNET(pf_status)
1710 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1711 #define V_pf_limits VNET(pf_limits)
1713 #endif /* _KERNEL */
1716 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1717 #define V_pf_anchors VNET(pf_anchors)
1718 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1719 #define V_pf_main_anchor VNET(pf_main_anchor)
1720 #define pf_main_ruleset V_pf_main_anchor.ruleset
1723 /* these ruleset functions can be linked into userland programs (pfctl) */
1724 int pf_get_ruleset_number(u_int8_t);
1725 void pf_init_ruleset(struct pf_ruleset *);
1726 int pf_anchor_setup(struct pf_rule *,
1727 const struct pf_ruleset *, const char *);
1728 int pf_anchor_copyout(const struct pf_ruleset *,
1729 const struct pf_rule *, struct pfioc_rule *);
1730 void pf_anchor_remove(struct pf_rule *);
1731 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1732 struct pf_ruleset *pf_find_ruleset(const char *);
1733 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1734 void pf_rs_initialize(void);
1736 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1737 int pf_osfp_add(struct pf_osfp_ioctl *);
1739 struct pf_osfp_enlist *
1740 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1741 const struct tcphdr *);
1742 #endif /* _KERNEL */
1743 void pf_osfp_flush(void);
1744 int pf_osfp_get(struct pf_osfp_ioctl *);
1745 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1748 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1750 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1751 struct pf_ruleset **, int, struct pf_rule **,
1752 struct pf_rule **, int *);
1753 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1754 struct pf_ruleset **, int, struct pf_rule **,
1755 struct pf_rule **, int *);
1757 int pf_map_addr(u_int8_t, struct pf_rule *,
1758 struct pf_addr *, struct pf_addr *,
1759 struct pf_addr *, struct pf_src_node **);
1760 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1761 int, int, struct pfi_kif *, struct pf_src_node **,
1762 struct pf_state_key **, struct pf_state_key **,
1763 struct pf_addr *, struct pf_addr *,
1764 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1766 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1767 struct pf_addr *, u_int16_t, u_int16_t);
1768 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1769 #endif /* _KERNEL */
1771 #endif /* _NET_PFVAR_H_ */