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 <net/pf_mtag.h>
47 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
48 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
50 #define PF_MD5_DIGEST_LENGTH 16
51 #ifdef MD5_DIGEST_LENGTH
52 #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
57 enum { PF_INOUT, PF_IN, PF_OUT };
58 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
59 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, PF_DEFER };
60 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
61 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
62 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
63 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
64 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
65 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
66 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
67 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
68 enum { PF_GET_NONE, PF_GET_CLR_CNTR };
69 enum { PF_SK_WIRE, PF_SK_STACK, PF_SK_BOTH };
72 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
73 * PFTM_MAX, special cases afterwards. See pf_state_expires().
75 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
76 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
77 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
78 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
79 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
80 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
81 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
82 PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED };
84 /* PFTM default values */
85 #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
86 #define PFTM_TCP_OPENING_VAL 30 /* No response yet */
87 #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */
88 #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */
89 #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
90 #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
91 #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
92 #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
93 #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
94 #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
95 #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
96 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
97 #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
98 #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
99 #define PFTM_FRAG_VAL 30 /* Fragment expire */
100 #define PFTM_INTERVAL_VAL 10 /* Expire interval */
101 #define PFTM_SRC_NODE_VAL 0 /* Source tracking */
102 #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
104 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
105 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
106 PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
107 #define PF_POOL_IDMASK 0x0f
108 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
109 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
110 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
111 PF_ADDR_TABLE, PF_ADDR_URPFFAILED,
113 #define PF_POOL_TYPEMASK 0x0f
114 #define PF_POOL_STICKYADDR 0x20
115 #define PF_WSCALE_FLAG 0x80
116 #define PF_WSCALE_MASK 0x0f
119 #define PF_LOG_ALL 0x02
120 #define PF_LOG_SOCKET_LOOKUP 0x04
129 } pfa; /* 128-bit address */
132 #define addr8 pfa.addr8
133 #define addr16 pfa.addr16
134 #define addr32 pfa.addr32
137 #define PF_TABLE_NAME_SIZE 32
139 #define PFI_AFLAG_NETWORK 0x01
140 #define PFI_AFLAG_BROADCAST 0x02
141 #define PFI_AFLAG_PEER 0x04
142 #define PFI_AFLAG_MODEMASK 0x07
143 #define PFI_AFLAG_NOALIAS 0x08
145 struct pf_addr_wrap {
151 char ifname[IFNAMSIZ];
152 char tblname[PF_TABLE_NAME_SIZE];
155 struct pfi_dynaddr *dyn;
156 struct pfr_ktable *tbl;
160 u_int8_t type; /* PF_ADDR_* */
161 u_int8_t iflags; /* PFI_AFLAG_* */
167 TAILQ_ENTRY(pfi_dynaddr) entry;
168 struct pf_addr pfid_addr4;
169 struct pf_addr pfid_mask4;
170 struct pf_addr pfid_addr6;
171 struct pf_addr pfid_mask6;
172 struct pfr_ktable *pfid_kt;
173 struct pfi_kif *pfid_kif;
174 int pfid_net; /* mask or 128 */
175 int pfid_acnt4; /* address count IPv4 */
176 int pfid_acnt6; /* address count IPv6 */
177 sa_family_t pfid_af; /* rule af */
178 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
182 * Address manipulation macros
184 #define HTONL(x) (x) = htonl((__uint32_t)(x))
185 #define HTONS(x) (x) = htons((__uint16_t)(x))
186 #define NTOHL(x) (x) = ntohl((__uint32_t)(x))
187 #define NTOHS(x) (x) = ntohs((__uint16_t)(x))
191 #define PF_HASHROW_ASSERT(h) mtx_assert(&(h)->lock, MA_OWNED)
192 #define PF_HASHROW_LOCK(h) mtx_lock(&(h)->lock)
193 #define PF_HASHROW_UNLOCK(h) mtx_unlock(&(h)->lock)
195 #define PF_STATE_LOCK(s) \
197 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
198 PF_HASHROW_LOCK(_ih); \
201 #define PF_STATE_UNLOCK(s) \
203 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH((s))]; \
204 PF_HASHROW_UNLOCK(_ih); \
208 #define PF_STATE_LOCK_ASSERT(s) \
210 struct pf_idhash *_ih = &V_pf_idhash[PF_IDHASH(s)]; \
211 PF_HASHROW_ASSERT(_ih); \
213 #else /* !INVARIANTS */
214 #define PF_STATE_LOCK_ASSERT(s) do {} while (0)
215 #endif /* INVARIANTS */
217 extern struct mtx pf_unlnkdrules_mtx;
218 #define PF_UNLNKDRULES_LOCK() mtx_lock(&pf_unlnkdrules_mtx)
219 #define PF_UNLNKDRULES_UNLOCK() mtx_unlock(&pf_unlnkdrules_mtx)
221 extern struct rwlock pf_rules_lock;
222 #define PF_RULES_RLOCK() rw_rlock(&pf_rules_lock)
223 #define PF_RULES_RUNLOCK() rw_runlock(&pf_rules_lock)
224 #define PF_RULES_WLOCK() rw_wlock(&pf_rules_lock)
225 #define PF_RULES_WUNLOCK() rw_wunlock(&pf_rules_lock)
226 #define PF_RULES_ASSERT() rw_assert(&pf_rules_lock, RA_LOCKED)
227 #define PF_RULES_RASSERT() rw_assert(&pf_rules_lock, RA_RLOCKED)
228 #define PF_RULES_WASSERT() rw_assert(&pf_rules_lock, RA_WLOCKED)
231 #define PFLOG_MODVER 1
232 #define PFSYNC_MODVER 1
234 #define PFLOG_MINVER 1
235 #define PFLOG_PREFVER PFLOG_MODVER
236 #define PFLOG_MAXVER 1
237 #define PFSYNC_MINVER 1
238 #define PFSYNC_PREFVER PFSYNC_MODVER
239 #define PFSYNC_MAXVER 1
249 #define PF_INET6_ONLY
255 #define PF_INET_INET6
261 #define PF_INET_INET6
265 /* Both IPv4 and IPv6 */
268 #define PF_AEQ(a, b, c) \
269 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
270 ((a)->addr32[3] == (b)->addr32[3] && \
271 (a)->addr32[2] == (b)->addr32[2] && \
272 (a)->addr32[1] == (b)->addr32[1] && \
273 (a)->addr32[0] == (b)->addr32[0])) \
275 #define PF_ANEQ(a, b, c) \
276 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
277 ((a)->addr32[3] != (b)->addr32[3] || \
278 (a)->addr32[2] != (b)->addr32[2] || \
279 (a)->addr32[1] != (b)->addr32[1] || \
280 (a)->addr32[0] != (b)->addr32[0])) \
282 #define PF_AZERO(a, c) \
283 ((c == AF_INET && !(a)->addr32[0]) || \
284 (!(a)->addr32[0] && !(a)->addr32[1] && \
285 !(a)->addr32[2] && !(a)->addr32[3] )) \
287 #define PF_MATCHA(n, a, m, b, f) \
288 pf_match_addr(n, a, m, b, f)
290 #define PF_ACPY(a, b, f) \
293 #define PF_AINC(a, f) \
296 #define PF_POOLMASK(a, b, c, d, f) \
297 pf_poolmask(a, b, c, d, f)
305 #define PF_AEQ(a, b, c) \
306 ((a)->addr32[3] == (b)->addr32[3] && \
307 (a)->addr32[2] == (b)->addr32[2] && \
308 (a)->addr32[1] == (b)->addr32[1] && \
309 (a)->addr32[0] == (b)->addr32[0]) \
311 #define PF_ANEQ(a, b, c) \
312 ((a)->addr32[3] != (b)->addr32[3] || \
313 (a)->addr32[2] != (b)->addr32[2] || \
314 (a)->addr32[1] != (b)->addr32[1] || \
315 (a)->addr32[0] != (b)->addr32[0]) \
317 #define PF_AZERO(a, c) \
318 (!(a)->addr32[0] && \
323 #define PF_MATCHA(n, a, m, b, f) \
324 pf_match_addr(n, a, m, b, f)
326 #define PF_ACPY(a, b, f) \
329 #define PF_AINC(a, f) \
332 #define PF_POOLMASK(a, b, c, d, f) \
333 pf_poolmask(a, b, c, d, f)
340 #define PF_AEQ(a, b, c) \
341 ((a)->addr32[0] == (b)->addr32[0])
343 #define PF_ANEQ(a, b, c) \
344 ((a)->addr32[0] != (b)->addr32[0])
346 #define PF_AZERO(a, c) \
349 #define PF_MATCHA(n, a, m, b, f) \
350 pf_match_addr(n, a, m, b, f)
352 #define PF_ACPY(a, b, f) \
353 (a)->v4.s_addr = (b)->v4.s_addr
355 #define PF_AINC(a, f) \
357 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
360 #define PF_POOLMASK(a, b, c, d, f) \
362 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
363 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
366 #endif /* PF_INET_ONLY */
367 #endif /* PF_INET6_ONLY */
368 #endif /* PF_INET_INET6 */
371 * XXX callers not FIB-aware in our version of pf yet.
372 * OpenBSD fixed it later it seems, 2010/05/07 13:33:16 claudio.
374 #define PF_MISMATCHAW(aw, x, af, neg, ifp, rtid) \
376 (((aw)->type == PF_ADDR_NOROUTE && \
377 pf_routable((x), (af), NULL, (rtid))) || \
378 (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
379 pf_routable((x), (af), (ifp), (rtid))) || \
380 ((aw)->type == PF_ADDR_TABLE && \
381 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
382 ((aw)->type == PF_ADDR_DYNIFTL && \
383 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
384 ((aw)->type == PF_ADDR_RANGE && \
385 !pf_match_addr_range(&(aw)->v.a.addr, \
386 &(aw)->v.a.mask, (x), (af))) || \
387 ((aw)->type == PF_ADDR_ADDRMASK && \
388 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
389 !PF_MATCHA(0, &(aw)->v.a.addr, \
390 &(aw)->v.a.mask, (x), (af))))) != \
405 struct pf_rule_addr {
406 struct pf_addr_wrap addr;
413 struct pf_addr_wrap addr;
414 TAILQ_ENTRY(pf_pooladdr) entries;
415 char ifname[IFNAMSIZ];
419 TAILQ_HEAD(pf_palist, pf_pooladdr);
421 struct pf_poolhashkey {
426 } pfk; /* 128-bit hash key */
427 #define key8 pfk.key8
428 #define key16 pfk.key16
429 #define key32 pfk.key32
433 struct pf_palist list;
434 struct pf_pooladdr *cur;
435 struct pf_poolhashkey key;
436 struct pf_addr counter;
438 u_int16_t proxy_port[2];
443 /* A packed Operating System description for fingerprinting */
444 typedef u_int32_t pf_osfp_t;
445 #define PF_OSFP_ANY ((pf_osfp_t)0)
446 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
447 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
449 struct pf_osfp_entry {
450 SLIST_ENTRY(pf_osfp_entry) fp_entry;
453 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
454 #define PF_OSFP_GENERIC 0x002 /* generic signature */
455 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
456 #define PF_OSFP_LEN 32
457 char fp_class_nm[PF_OSFP_LEN];
458 char fp_version_nm[PF_OSFP_LEN];
459 char fp_subtype_nm[PF_OSFP_LEN];
461 #define PF_OSFP_ENTRY_EQ(a, b) \
462 ((a)->fp_os == (b)->fp_os && \
463 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
464 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
465 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
467 /* handle pf_osfp_t packing */
468 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
469 #define _FP_UNUSED_BITS 1
470 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
471 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
472 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
473 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
474 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
475 ((1 << _FP_CLASS_BITS) - 1); \
476 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
477 ((1 << _FP_VERSION_BITS) - 1);\
478 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
480 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
481 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
482 + _FP_SUBTYPE_BITS); \
483 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
485 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
488 /* the fingerprint of an OSes TCP SYN packet */
489 typedef u_int64_t pf_tcpopts_t;
490 struct pf_os_fingerprint {
491 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
492 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
493 u_int16_t fp_wsize; /* TCP window size */
494 u_int16_t fp_psize; /* ip->ip_len */
495 u_int16_t fp_mss; /* TCP MSS */
497 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
498 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
499 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
500 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
501 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
502 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
503 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
504 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
505 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
506 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
507 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
508 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
509 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
510 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
511 #define PF_OSFP_INET6 0x4000 /* IPv6 */
512 u_int8_t fp_optcnt; /* TCP option count */
513 u_int8_t fp_wscale; /* TCP window scaling */
514 u_int8_t fp_ttl; /* IPv4 TTL */
515 #define PF_OSFP_MAXTTL_OFFSET 40
516 /* TCP options packing */
517 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
518 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
519 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
520 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
521 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
522 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
523 #define PF_OSFP_MAX_OPTS \
524 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
525 / PF_OSFP_TCPOPT_BITS
527 SLIST_ENTRY(pf_os_fingerprint) fp_next;
530 struct pf_osfp_ioctl {
531 struct pf_osfp_entry fp_os;
532 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
533 u_int16_t fp_wsize; /* TCP window size */
534 u_int16_t fp_psize; /* ip->ip_len */
535 u_int16_t fp_mss; /* TCP MSS */
537 u_int8_t fp_optcnt; /* TCP option count */
538 u_int8_t fp_wscale; /* TCP window scaling */
539 u_int8_t fp_ttl; /* IPv4 TTL */
541 int fp_getnum; /* DIOCOSFPGET number */
550 #define PF_ANCHOR_NAME_SIZE 64
553 struct pf_rule_addr src;
554 struct pf_rule_addr dst;
555 #define PF_SKIP_IFP 0
556 #define PF_SKIP_DIR 1
558 #define PF_SKIP_PROTO 3
559 #define PF_SKIP_SRC_ADDR 4
560 #define PF_SKIP_SRC_PORT 5
561 #define PF_SKIP_DST_ADDR 6
562 #define PF_SKIP_DST_PORT 7
563 #define PF_SKIP_COUNT 8
564 union pf_rule_ptr skip[PF_SKIP_COUNT];
565 #define PF_RULE_LABEL_SIZE 64
566 char label[PF_RULE_LABEL_SIZE];
567 #define PF_QNAME_SIZE 64
568 char ifname[IFNAMSIZ];
569 char qname[PF_QNAME_SIZE];
570 char pqname[PF_QNAME_SIZE];
571 #define PF_TAG_NAME_SIZE 64
572 char tagname[PF_TAG_NAME_SIZE];
573 char match_tagname[PF_TAG_NAME_SIZE];
575 char overload_tblname[PF_TABLE_NAME_SIZE];
577 TAILQ_ENTRY(pf_rule) entries;
578 struct pf_pool rpool;
580 u_int64_t evaluations;
581 u_int64_t packets[2];
585 struct pf_anchor *anchor;
586 struct pfr_ktable *overload_tbl;
588 pf_osfp_t os_fingerprint;
591 u_int32_t timeout[PFTM_MAX];
592 u_int32_t max_states;
593 u_int32_t max_src_nodes;
594 u_int32_t max_src_states;
595 u_int32_t max_src_conn;
608 counter_u64_t states_cur;
609 counter_u64_t states_tot;
610 counter_u64_t src_nodes;
612 u_int16_t return_icmp;
613 u_int16_t return_icmp6;
617 u_int16_t spare2; /* netgraph */
619 struct pf_rule_uid uid;
620 struct pf_rule_gid gid;
629 u_int8_t match_tag_not;
632 #define PF_STATE_NORMAL 0x1
633 #define PF_STATE_MODULATE 0x2
634 #define PF_STATE_SYNPROXY 0x3
648 u_int8_t anchor_relative;
649 u_int8_t anchor_wildcard;
651 #define PF_FLUSH 0x01
652 #define PF_FLUSH_GLOBAL 0x02
660 uint64_t u_states_cur;
661 uint64_t u_states_tot;
662 uint64_t u_src_nodes;
666 #define PFRULE_DROP 0x0000
667 #define PFRULE_RETURNRST 0x0001
668 #define PFRULE_FRAGMENT 0x0002
669 #define PFRULE_RETURNICMP 0x0004
670 #define PFRULE_RETURN 0x0008
671 #define PFRULE_NOSYNC 0x0010
672 #define PFRULE_SRCTRACK 0x0020 /* track source states */
673 #define PFRULE_RULESRCTRACK 0x0040 /* per rule */
674 #define PFRULE_REFS 0x0080 /* rule has references */
677 #define PFRULE_NODF 0x0100
678 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
679 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
680 #define PFRULE_RANDOMID 0x0800
681 #define PFRULE_REASSEMBLE_TCP 0x1000
682 #define PFRULE_SET_TOS 0x2000
684 /* rule flags again */
685 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
686 #define PFRULE_STATESLOPPY 0x00020000 /* sloppy state tracking */
688 #define PFSTATE_HIWAT 10000 /* default state table size */
689 #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
690 #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
693 struct pf_threshold {
695 #define PF_THRESHOLD_MULT 1000
696 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
703 LIST_ENTRY(pf_src_node) entry;
705 struct pf_addr raddr;
706 union pf_rule_ptr rule;
709 u_int64_t packets[2];
712 struct pf_threshold conn_rate;
719 #define PFSNODE_HIWAT 10000 /* default source node table size */
721 struct pf_state_scrub {
722 struct timeval pfss_last; /* time received last packet */
723 u_int32_t pfss_tsecr; /* last echoed timestamp */
724 u_int32_t pfss_tsval; /* largest timestamp */
725 u_int32_t pfss_tsval0; /* original timestamp */
726 u_int16_t pfss_flags;
727 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
728 #define PFSS_PAWS 0x0010 /* stricter PAWS checks */
729 #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
730 #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
731 #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
732 u_int8_t pfss_ttl; /* stashed TTL */
734 u_int32_t pfss_ts_mod; /* timestamp modulation */
737 struct pf_state_host {
743 struct pf_state_peer {
744 struct pf_state_scrub *scrub; /* state is scrubbed */
745 u_int32_t seqlo; /* Max sequence number sent */
746 u_int32_t seqhi; /* Max the other end ACKd + win */
747 u_int32_t seqdiff; /* Sequence number modulator */
748 u_int16_t max_win; /* largest window (pre scaling) */
749 u_int16_t mss; /* Maximum segment size option */
750 u_int8_t state; /* active state level */
751 u_int8_t wscale; /* window scaling factor */
752 u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
756 /* Keep synced with struct pf_state_key. */
757 struct pf_state_key_cmp {
758 struct pf_addr addr[2];
765 struct pf_state_key {
766 struct pf_addr addr[2];
772 LIST_ENTRY(pf_state_key) entry;
773 TAILQ_HEAD(, pf_state) states[2];
776 /* Keep synced with struct pf_state. */
777 struct pf_state_cmp {
791 TAILQ_ENTRY(pf_state) sync_list;
792 TAILQ_ENTRY(pf_state) key_list[2];
793 LIST_ENTRY(pf_state) entry;
794 struct pf_state_peer src;
795 struct pf_state_peer dst;
796 union pf_rule_ptr rule;
797 union pf_rule_ptr anchor;
798 union pf_rule_ptr nat_rule;
799 struct pf_addr rt_addr;
800 struct pf_state_key *key[2]; /* addresses stack and wire */
802 struct pfi_kif *rt_kif;
803 struct pf_src_node *src_node;
804 struct pf_src_node *nat_src_node;
805 u_int64_t packets[2];
809 u_int32_t pfsync_time;
812 u_int8_t state_flags;
813 #define PFSTATE_ALLOWOPTS 0x01
814 #define PFSTATE_SLOPPY 0x02
815 /* was PFSTATE_PFLOW 0x04 */
816 #define PFSTATE_NOSYNC 0x08
817 #define PFSTATE_ACK 0x10
819 u_int8_t sync_state; /* PFSYNC_S_x */
822 u_int8_t sync_updates;
827 * Unified state structures for pulling states out of the kernel
828 * used by pfsync(4) and the pf(4) ioctl.
830 struct pfsync_state_scrub {
831 u_int16_t pfss_flags;
832 u_int8_t pfss_ttl; /* stashed TTL */
833 #define PFSYNC_SCRUB_FLAG_VALID 0x01
835 u_int32_t pfss_ts_mod; /* timestamp modulation */
838 struct pfsync_state_peer {
839 struct pfsync_state_scrub scrub; /* state is scrubbed */
840 u_int32_t seqlo; /* Max sequence number sent */
841 u_int32_t seqhi; /* Max the other end ACKd + win */
842 u_int32_t seqdiff; /* Sequence number modulator */
843 u_int16_t max_win; /* largest window (pre scaling) */
844 u_int16_t mss; /* Maximum segment size option */
845 u_int8_t state; /* active state level */
846 u_int8_t wscale; /* window scaling factor */
850 struct pfsync_state_key {
851 struct pf_addr addr[2];
855 struct pfsync_state {
857 char ifname[IFNAMSIZ];
858 struct pfsync_state_key key[2];
859 struct pfsync_state_peer src;
860 struct pfsync_state_peer dst;
861 struct pf_addr rt_addr;
867 u_int32_t packets[2][2];
868 u_int32_t bytes[2][2];
875 u_int8_t state_flags;
883 typedef int pfsync_state_import_t(struct pfsync_state *, u_int8_t);
884 typedef void pfsync_insert_state_t(struct pf_state *);
885 typedef void pfsync_update_state_t(struct pf_state *);
886 typedef void pfsync_delete_state_t(struct pf_state *);
887 typedef void pfsync_clear_states_t(u_int32_t, const char *);
888 typedef int pfsync_defer_t(struct pf_state *, struct mbuf *);
890 extern pfsync_state_import_t *pfsync_state_import_ptr;
891 extern pfsync_insert_state_t *pfsync_insert_state_ptr;
892 extern pfsync_update_state_t *pfsync_update_state_ptr;
893 extern pfsync_delete_state_t *pfsync_delete_state_ptr;
894 extern pfsync_clear_states_t *pfsync_clear_states_ptr;
895 extern pfsync_defer_t *pfsync_defer_ptr;
897 void pfsync_state_export(struct pfsync_state *,
903 typedef int pflog_packet_t(struct pfi_kif *, struct mbuf *, sa_family_t,
904 u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
905 struct pf_ruleset *, struct pf_pdesc *, int);
906 extern pflog_packet_t *pflog_packet_ptr;
908 #define V_pf_end_threads VNET(pf_end_threads)
911 #define PFSYNC_FLAG_SRCNODE 0x04
912 #define PFSYNC_FLAG_NATSRCNODE 0x08
914 /* for copies to/from network byte order */
915 /* ioctl interface also uses network byte order */
916 #define pf_state_peer_hton(s,d) do { \
917 (d)->seqlo = htonl((s)->seqlo); \
918 (d)->seqhi = htonl((s)->seqhi); \
919 (d)->seqdiff = htonl((s)->seqdiff); \
920 (d)->max_win = htons((s)->max_win); \
921 (d)->mss = htons((s)->mss); \
922 (d)->state = (s)->state; \
923 (d)->wscale = (s)->wscale; \
925 (d)->scrub.pfss_flags = \
926 htons((s)->scrub->pfss_flags & PFSS_TIMESTAMP); \
927 (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
928 (d)->scrub.pfss_ts_mod = htonl((s)->scrub->pfss_ts_mod);\
929 (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
933 #define pf_state_peer_ntoh(s,d) do { \
934 (d)->seqlo = ntohl((s)->seqlo); \
935 (d)->seqhi = ntohl((s)->seqhi); \
936 (d)->seqdiff = ntohl((s)->seqdiff); \
937 (d)->max_win = ntohs((s)->max_win); \
938 (d)->mss = ntohs((s)->mss); \
939 (d)->state = (s)->state; \
940 (d)->wscale = (s)->wscale; \
941 if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
942 (d)->scrub != NULL) { \
943 (d)->scrub->pfss_flags = \
944 ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
945 (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
946 (d)->scrub->pfss_ts_mod = ntohl((s)->scrub.pfss_ts_mod);\
950 #define pf_state_counter_hton(s,d) do { \
951 d[0] = htonl((s>>32)&0xffffffff); \
952 d[1] = htonl(s&0xffffffff); \
955 #define pf_state_counter_from_pfsync(s) \
956 (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
958 #define pf_state_counter_ntoh(s,d) do { \
964 TAILQ_HEAD(pf_rulequeue, pf_rule);
970 struct pf_rulequeue queues[2];
972 struct pf_rulequeue *ptr;
973 struct pf_rule **ptr_array;
978 } rules[PF_RULESET_MAX];
979 struct pf_anchor *anchor;
985 RB_HEAD(pf_anchor_global, pf_anchor);
986 RB_HEAD(pf_anchor_node, pf_anchor);
988 RB_ENTRY(pf_anchor) entry_global;
989 RB_ENTRY(pf_anchor) entry_node;
990 struct pf_anchor *parent;
991 struct pf_anchor_node children;
992 char name[PF_ANCHOR_NAME_SIZE];
993 char path[MAXPATHLEN];
994 struct pf_ruleset ruleset;
995 int refcnt; /* anchor rules */
996 int match; /* XXX: used for pfctl black magic */
998 RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
999 RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
1001 #define PF_RESERVED_ANCHOR "_pf"
1003 #define PFR_TFLAG_PERSIST 0x00000001
1004 #define PFR_TFLAG_CONST 0x00000002
1005 #define PFR_TFLAG_ACTIVE 0x00000004
1006 #define PFR_TFLAG_INACTIVE 0x00000008
1007 #define PFR_TFLAG_REFERENCED 0x00000010
1008 #define PFR_TFLAG_REFDANCHOR 0x00000020
1009 #define PFR_TFLAG_COUNTERS 0x00000040
1010 /* Adjust masks below when adding flags. */
1011 #define PFR_TFLAG_USRMASK (PFR_TFLAG_PERSIST | \
1014 #define PFR_TFLAG_SETMASK (PFR_TFLAG_ACTIVE | \
1015 PFR_TFLAG_INACTIVE | \
1016 PFR_TFLAG_REFERENCED | \
1017 PFR_TFLAG_REFDANCHOR)
1018 #define PFR_TFLAG_ALLMASK (PFR_TFLAG_PERSIST | \
1020 PFR_TFLAG_ACTIVE | \
1021 PFR_TFLAG_INACTIVE | \
1022 PFR_TFLAG_REFERENCED | \
1023 PFR_TFLAG_REFDANCHOR | \
1026 struct pf_anchor_stackframe;
1029 char pfrt_anchor[MAXPATHLEN];
1030 char pfrt_name[PF_TABLE_NAME_SIZE];
1031 u_int32_t pfrt_flags;
1032 u_int8_t pfrt_fback;
1035 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
1036 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
1037 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_NOCOUNT, PFR_FB_MAX };
1041 struct in_addr _pfra_ip4addr;
1042 struct in6_addr _pfra_ip6addr;
1047 u_int8_t pfra_fback;
1049 #define pfra_ip4addr pfra_u._pfra_ip4addr
1050 #define pfra_ip6addr pfra_u._pfra_ip6addr
1052 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
1053 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
1054 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
1057 struct pfr_addr pfras_a;
1058 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1059 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1063 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
1066 struct pfr_table pfrts_t;
1067 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1068 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
1069 u_int64_t pfrts_match;
1070 u_int64_t pfrts_nomatch;
1073 int pfrts_refcnt[PFR_REFCNT_MAX];
1075 #define pfrts_name pfrts_t.pfrt_name
1076 #define pfrts_flags pfrts_t.pfrt_flags
1078 #ifndef _SOCKADDR_UNION_DEFINED
1079 #define _SOCKADDR_UNION_DEFINED
1080 union sockaddr_union {
1082 struct sockaddr_in sin;
1083 struct sockaddr_in6 sin6;
1085 #endif /* _SOCKADDR_UNION_DEFINED */
1087 struct pfr_kcounters {
1088 u_int64_t pfrkc_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1089 u_int64_t pfrkc_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
1092 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
1094 struct radix_node pfrke_node[2];
1095 union sockaddr_union pfrke_sa;
1096 SLIST_ENTRY(pfr_kentry) pfrke_workq;
1097 struct pfr_kcounters *pfrke_counters;
1102 u_int8_t pfrke_mark;
1105 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
1106 RB_HEAD(pfr_ktablehead, pfr_ktable);
1108 struct pfr_tstats pfrkt_ts;
1109 RB_ENTRY(pfr_ktable) pfrkt_tree;
1110 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
1111 struct radix_node_head *pfrkt_ip4;
1112 struct radix_node_head *pfrkt_ip6;
1113 struct pfr_ktable *pfrkt_shadow;
1114 struct pfr_ktable *pfrkt_root;
1115 struct pf_ruleset *pfrkt_rs;
1119 #define pfrkt_t pfrkt_ts.pfrts_t
1120 #define pfrkt_name pfrkt_t.pfrt_name
1121 #define pfrkt_anchor pfrkt_t.pfrt_anchor
1122 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
1123 #define pfrkt_flags pfrkt_t.pfrt_flags
1124 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
1125 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
1126 #define pfrkt_packets pfrkt_ts.pfrts_packets
1127 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
1128 #define pfrkt_match pfrkt_ts.pfrts_match
1129 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
1130 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
1132 /* keep synced with pfi_kif, used in RB_FIND */
1133 struct pfi_kif_cmp {
1134 char pfik_name[IFNAMSIZ];
1138 char pfik_name[IFNAMSIZ];
1140 RB_ENTRY(pfi_kif) _pfik_tree;
1141 LIST_ENTRY(pfi_kif) _pfik_list;
1143 #define pfik_tree _pfik_glue._pfik_tree
1144 #define pfik_list _pfik_glue._pfik_list
1145 u_int64_t pfik_packets[2][2][2];
1146 u_int64_t pfik_bytes[2][2][2];
1147 u_int32_t pfik_tzero;
1149 struct ifnet *pfik_ifp;
1150 struct ifg_group *pfik_group;
1151 u_int pfik_rulerefs;
1152 TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
1155 #define PFI_IFLAG_REFS 0x0001 /* has state references */
1156 #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
1164 u_int64_t tot_len; /* Make Mickey money */
1170 struct icmp6_hdr *icmp6;
1175 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
1176 struct pf_addr *src; /* src address */
1177 struct pf_addr *dst; /* dst address */
1180 struct pf_mtag *pf_mtag;
1182 u_int32_t p_len; /* total length of payload */
1185 u_int16_t *proto_sum;
1186 u_int16_t flags; /* Let SCRUB trigger behavior in
1187 * state code. Easier than tags */
1188 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
1189 #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
1193 u_int8_t dir; /* direction */
1194 u_int8_t sidx; /* key index for source */
1195 u_int8_t didx; /* key index for destination */
1198 /* flags for RDR options */
1199 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
1200 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
1202 /* Reasons code for passing/dropping a packet */
1203 #define PFRES_MATCH 0 /* Explicit match of a rule */
1204 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
1205 #define PFRES_FRAG 2 /* Dropping following fragment */
1206 #define PFRES_SHORT 3 /* Dropping short packet */
1207 #define PFRES_NORM 4 /* Dropping by normalizer */
1208 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
1209 #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
1210 #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
1211 #define PFRES_IPOPTIONS 8 /* IP option */
1212 #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
1213 #define PFRES_BADSTATE 10 /* State mismatch */
1214 #define PFRES_STATEINS 11 /* State insertion failure */
1215 #define PFRES_MAXSTATES 12 /* State limit */
1216 #define PFRES_SRCLIMIT 13 /* Source node/conn limit */
1217 #define PFRES_SYNPROXY 14 /* SYN proxy */
1218 #define PFRES_MAX 15 /* total+1 */
1220 #define PFRES_NAMES { \
1239 /* Counters for other things we want to keep track of */
1240 #define LCNT_STATES 0 /* states */
1241 #define LCNT_SRCSTATES 1 /* max-src-states */
1242 #define LCNT_SRCNODES 2 /* max-src-nodes */
1243 #define LCNT_SRCCONN 3 /* max-src-conn */
1244 #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
1245 #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
1246 #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
1247 #define LCNT_MAX 7 /* total+1 */
1249 #define LCNT_NAMES { \
1250 "max states per rule", \
1254 "max-src-conn-rate", \
1255 "overload table insertion", \
1256 "overload flush states", \
1260 /* UDP state enumeration */
1261 #define PFUDPS_NO_TRAFFIC 0
1262 #define PFUDPS_SINGLE 1
1263 #define PFUDPS_MULTIPLE 2
1265 #define PFUDPS_NSTATES 3 /* number of state levels */
1267 #define PFUDPS_NAMES { \
1274 /* Other protocol state enumeration */
1275 #define PFOTHERS_NO_TRAFFIC 0
1276 #define PFOTHERS_SINGLE 1
1277 #define PFOTHERS_MULTIPLE 2
1279 #define PFOTHERS_NSTATES 3 /* number of state levels */
1281 #define PFOTHERS_NAMES { \
1288 #define FCNT_STATE_SEARCH 0
1289 #define FCNT_STATE_INSERT 1
1290 #define FCNT_STATE_REMOVALS 2
1293 #define SCNT_SRC_NODE_SEARCH 0
1294 #define SCNT_SRC_NODE_INSERT 1
1295 #define SCNT_SRC_NODE_REMOVALS 2
1298 #define ACTION_SET(a, x) \
1304 #define REASON_SET(a, x) \
1308 if (x < PFRES_MAX) \
1309 V_pf_status.counters[x]++; \
1313 u_int64_t counters[PFRES_MAX];
1314 u_int64_t lcounters[LCNT_MAX]; /* limit counters */
1315 u_int64_t fcounters[FCNT_MAX];
1316 u_int64_t scounters[SCNT_MAX];
1317 u_int64_t pcounters[2][2][3];
1318 u_int64_t bcounters[2][2];
1321 u_int32_t src_nodes;
1325 char ifname[IFNAMSIZ];
1326 u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
1346 /* real-time service curve */
1347 u_int rtsc_m1; /* slope of the 1st segment in bps */
1348 u_int rtsc_d; /* the x-projection of m1 in msec */
1349 u_int rtsc_m2; /* slope of the 2nd segment in bps */
1350 /* link-sharing service curve */
1354 /* upper-limit service curve */
1362 char ifname[IFNAMSIZ];
1364 void *altq_disc; /* discipline-specific state */
1365 TAILQ_ENTRY(pf_altq) entries;
1367 /* scheduler spec */
1368 u_int8_t scheduler; /* scheduler type */
1369 u_int16_t tbrsize; /* tokenbucket regulator size */
1370 u_int32_t ifbandwidth; /* interface bandwidth */
1373 char qname[PF_QNAME_SIZE]; /* queue name */
1374 char parent[PF_QNAME_SIZE]; /* parent name */
1375 u_int32_t parent_qid; /* parent queue id */
1376 u_int32_t bandwidth; /* queue bandwidth */
1377 u_int8_t priority; /* priority */
1378 u_int8_t local_flags; /* dynamic interface */
1379 #define PFALTQ_FLAG_IF_REMOVED 0x01
1381 u_int16_t qlimit; /* queue size limit */
1382 u_int16_t flags; /* misc flags */
1384 struct cbq_opts cbq_opts;
1385 struct priq_opts priq_opts;
1386 struct hfsc_opts hfsc_opts;
1389 u_int32_t qid; /* return value */
1394 struct in_addr ipv4;
1395 struct in6_addr ipv6;
1400 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1401 #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
1404 * ioctl parameter structures
1407 struct pfioc_pooladdr {
1415 char anchor[MAXPATHLEN];
1416 struct pf_pooladdr addr;
1422 u_int32_t pool_ticket;
1424 char anchor[MAXPATHLEN];
1425 char anchor_call[MAXPATHLEN];
1426 struct pf_rule rule;
1429 struct pfioc_natlook {
1430 struct pf_addr saddr;
1431 struct pf_addr daddr;
1432 struct pf_addr rsaddr;
1433 struct pf_addr rdaddr;
1443 struct pfioc_state {
1444 struct pfsync_state state;
1447 struct pfioc_src_node_kill {
1448 sa_family_t psnk_af;
1449 struct pf_rule_addr psnk_src;
1450 struct pf_rule_addr psnk_dst;
1454 struct pfioc_state_kill {
1455 struct pf_state_cmp psk_pfcmp;
1458 struct pf_rule_addr psk_src;
1459 struct pf_rule_addr psk_dst;
1460 char psk_ifname[IFNAMSIZ];
1461 char psk_label[PF_RULE_LABEL_SIZE];
1465 struct pfioc_states {
1469 struct pfsync_state *psu_states;
1471 #define ps_buf ps_u.psu_buf
1472 #define ps_states ps_u.psu_states
1475 struct pfioc_src_nodes {
1479 struct pf_src_node *psu_src_nodes;
1481 #define psn_buf psn_u.psu_buf
1482 #define psn_src_nodes psn_u.psu_src_nodes
1486 char ifname[IFNAMSIZ];
1494 struct pfioc_limit {
1503 struct pf_altq altq;
1506 struct pfioc_qstats {
1514 struct pfioc_ruleset {
1516 char path[MAXPATHLEN];
1517 char name[PF_ANCHOR_NAME_SIZE];
1520 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1521 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1522 struct pfioc_trans {
1523 int size; /* number of elements */
1524 int esize; /* size of each element in bytes */
1525 struct pfioc_trans_e {
1527 char anchor[MAXPATHLEN];
1532 #define PFR_FLAG_ATOMIC 0x00000001 /* unused */
1533 #define PFR_FLAG_DUMMY 0x00000002
1534 #define PFR_FLAG_FEEDBACK 0x00000004
1535 #define PFR_FLAG_CLSTATS 0x00000008
1536 #define PFR_FLAG_ADDRSTOO 0x00000010
1537 #define PFR_FLAG_REPLACE 0x00000020
1538 #define PFR_FLAG_ALLRSETS 0x00000040
1539 #define PFR_FLAG_ALLMASK 0x0000007F
1541 #define PFR_FLAG_USERIOCTL 0x10000000
1544 struct pfioc_table {
1545 struct pfr_table pfrio_table;
1554 u_int32_t pfrio_ticket;
1556 #define pfrio_exists pfrio_nadd
1557 #define pfrio_nzero pfrio_nadd
1558 #define pfrio_nmatch pfrio_nadd
1559 #define pfrio_naddr pfrio_size2
1560 #define pfrio_setflag pfrio_size2
1561 #define pfrio_clrflag pfrio_nadd
1563 struct pfioc_iface {
1564 char pfiio_name[IFNAMSIZ];
1577 #define DIOCSTART _IO ('D', 1)
1578 #define DIOCSTOP _IO ('D', 2)
1579 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1580 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1581 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1582 /* XXX cut 8 - 17 */
1583 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1584 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1585 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1586 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1587 #define DIOCCLRSTATUS _IO ('D', 22)
1588 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1589 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1590 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1591 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1592 /* XXX cut 26 - 28 */
1593 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1594 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1595 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1596 #define DIOCCLRRULECTRS _IO ('D', 38)
1597 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1598 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1599 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1600 #define DIOCSTARTALTQ _IO ('D', 42)
1601 #define DIOCSTOPALTQ _IO ('D', 43)
1602 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1603 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1604 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1605 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1606 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1607 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1608 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1609 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1610 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1611 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1612 /* XXX cut 55 - 57 */
1613 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1614 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1615 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1616 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1617 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1618 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1619 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1620 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1621 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1622 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1623 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1624 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1625 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1626 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1627 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1628 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1629 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1630 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1631 #define DIOCOSFPFLUSH _IO('D', 78)
1632 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1633 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1634 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1635 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1636 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1637 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1638 #define DIOCCLRSRCNODES _IO('D', 85)
1639 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1640 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1641 #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
1642 #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
1643 #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
1645 char ifname[IFNAMSIZ];
1648 #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
1651 LIST_HEAD(pf_src_node_list, pf_src_node);
1653 struct pf_src_node_list nodes;
1658 LIST_HEAD(, pf_state_key) keys;
1663 LIST_HEAD(, pf_state) states;
1667 #define PF_HASHSIZ (32768)
1668 VNET_DECLARE(struct pf_keyhash *, pf_keyhash);
1669 VNET_DECLARE(struct pf_idhash *, pf_idhash);
1670 VNET_DECLARE(u_long, pf_hashmask);
1671 #define V_pf_keyhash VNET(pf_keyhash)
1672 #define V_pf_idhash VNET(pf_idhash)
1673 #define V_pf_hashmask VNET(pf_hashmask)
1674 VNET_DECLARE(struct pf_srchash *, pf_srchash);
1675 VNET_DECLARE(u_long, pf_srchashmask);
1676 #define V_pf_srchash VNET(pf_srchash)
1677 #define V_pf_srchashmask VNET(pf_srchashmask)
1679 #define PF_IDHASH(s) (be64toh((s)->id) % (V_pf_hashmask + 1))
1681 VNET_DECLARE(void *, pf_swi_cookie);
1682 #define V_pf_swi_cookie VNET(pf_swi_cookie)
1684 VNET_DECLARE(uint64_t, pf_stateid[MAXCPU]);
1685 #define V_pf_stateid VNET(pf_stateid)
1687 TAILQ_HEAD(pf_altqqueue, pf_altq);
1688 VNET_DECLARE(struct pf_altqqueue, pf_altqs[2]);
1689 #define V_pf_altqs VNET(pf_altqs)
1690 VNET_DECLARE(struct pf_palist, pf_pabuf);
1691 #define V_pf_pabuf VNET(pf_pabuf)
1693 VNET_DECLARE(u_int32_t, ticket_altqs_active);
1694 #define V_ticket_altqs_active VNET(ticket_altqs_active)
1695 VNET_DECLARE(u_int32_t, ticket_altqs_inactive);
1696 #define V_ticket_altqs_inactive VNET(ticket_altqs_inactive)
1697 VNET_DECLARE(int, altqs_inactive_open);
1698 #define V_altqs_inactive_open VNET(altqs_inactive_open)
1699 VNET_DECLARE(u_int32_t, ticket_pabuf);
1700 #define V_ticket_pabuf VNET(ticket_pabuf)
1701 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_active);
1702 #define V_pf_altqs_active VNET(pf_altqs_active)
1703 VNET_DECLARE(struct pf_altqqueue *, pf_altqs_inactive);
1704 #define V_pf_altqs_inactive VNET(pf_altqs_inactive)
1706 VNET_DECLARE(struct pf_rulequeue, pf_unlinked_rules);
1707 #define V_pf_unlinked_rules VNET(pf_unlinked_rules)
1709 void pf_initialize(void);
1710 void pf_cleanup(void);
1712 struct pf_mtag *pf_get_mtag(struct mbuf *);
1714 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1716 extern void pf_altq_ifnet_event(struct ifnet *, int);
1718 VNET_DECLARE(uma_zone_t, pf_state_z);
1719 #define V_pf_state_z VNET(pf_state_z)
1720 VNET_DECLARE(uma_zone_t, pf_state_key_z);
1721 #define V_pf_state_key_z VNET(pf_state_key_z)
1722 VNET_DECLARE(uma_zone_t, pf_state_scrub_z);
1723 #define V_pf_state_scrub_z VNET(pf_state_scrub_z)
1725 extern void pf_purge_thread(void *);
1726 extern void pf_intr(void *);
1727 extern void pf_purge_expired_src_nodes(void);
1729 extern int pf_unlink_state(struct pf_state *, u_int);
1730 #define PF_ENTER_LOCKED 0x00000001
1731 #define PF_RETURN_LOCKED 0x00000002
1732 extern int pf_state_insert(struct pfi_kif *,
1733 struct pf_state_key *,
1734 struct pf_state_key *,
1736 extern void pf_free_state(struct pf_state *);
1738 static __inline void
1739 pf_ref_state(struct pf_state *s)
1742 refcount_acquire(&s->refs);
1746 pf_release_state(struct pf_state *s)
1749 if (refcount_release(&s->refs)) {
1756 extern struct pf_state *pf_find_state_byid(uint64_t, uint32_t);
1757 extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
1759 extern struct pf_src_node *pf_find_src_node(struct pf_addr *,
1760 struct pf_rule *, sa_family_t, int);
1761 extern void pf_unlink_src_node(struct pf_src_node *);
1762 extern void pf_unlink_src_node_locked(struct pf_src_node *);
1763 extern u_int pf_free_src_nodes(struct pf_src_node_list *);
1764 extern void pf_print_state(struct pf_state *);
1765 extern void pf_print_flags(u_int8_t);
1766 extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
1769 VNET_DECLARE(struct ifnet *, sync_ifp);
1770 #define V_sync_ifp VNET(sync_ifp);
1771 VNET_DECLARE(struct pf_rule, pf_default_rule);
1772 #define V_pf_default_rule VNET(pf_default_rule)
1773 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1775 void pf_free_rule(struct pf_rule *);
1778 int pf_test(int, struct ifnet *, struct mbuf **, struct inpcb *);
1782 int pf_test6(int, struct ifnet *, struct mbuf **, struct inpcb *);
1783 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1784 struct pf_addr *, struct pf_addr *, u_int8_t);
1785 void pf_addr_inc(struct pf_addr *, sa_family_t);
1788 u_int32_t pf_new_isn(struct pf_state *);
1789 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1791 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1792 void pf_send_deferred_syn(struct pf_state *);
1793 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1794 struct pf_addr *, sa_family_t);
1795 int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
1796 struct pf_addr *, sa_family_t);
1797 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1799 void pf_normalize_init(void);
1800 void pf_normalize_cleanup(void);
1801 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *,
1803 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *,
1805 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1807 void pf_normalize_tcp_cleanup(struct pf_state *);
1808 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1809 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1810 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1811 u_short *, struct tcphdr *, struct pf_state *,
1812 struct pf_state_peer *, struct pf_state_peer *, int *);
1814 pf_state_expires(const struct pf_state *);
1815 void pf_purge_expired_fragments(void);
1816 int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *,
1818 int pf_socket_lookup(int, struct pf_pdesc *, struct mbuf *);
1819 struct pf_state_key *pf_alloc_state_key(int);
1820 void pfr_initialize(void);
1821 void pfr_cleanup(void);
1822 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1823 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1824 u_int64_t, int, int, int);
1825 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, sa_family_t);
1826 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1828 pfr_attach_table(struct pf_ruleset *, char *);
1829 void pfr_detach_table(struct pfr_ktable *);
1830 int pfr_clr_tables(struct pfr_table *, int *, int);
1831 int pfr_add_tables(struct pfr_table *, int, int *, int);
1832 int pfr_del_tables(struct pfr_table *, int, int *, int);
1833 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1834 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1835 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1836 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1837 int pfr_clr_addrs(struct pfr_table *, int *, int);
1838 int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long);
1839 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1841 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1843 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1844 int *, int *, int *, int, u_int32_t);
1845 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1846 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1847 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1849 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1851 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1852 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1853 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1854 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1855 int *, u_int32_t, int);
1857 MALLOC_DECLARE(PFI_MTYPE);
1858 VNET_DECLARE(struct pfi_kif *, pfi_all);
1859 #define V_pfi_all VNET(pfi_all)
1861 void pfi_initialize(void);
1862 void pfi_cleanup(void);
1863 void pfi_kif_ref(struct pfi_kif *);
1864 void pfi_kif_unref(struct pfi_kif *);
1865 struct pfi_kif *pfi_kif_find(const char *);
1866 struct pfi_kif *pfi_kif_attach(struct pfi_kif *, const char *);
1867 int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
1868 void pfi_kif_purge(void);
1869 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1871 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1872 void pfi_dynaddr_remove(struct pfi_dynaddr *);
1873 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1874 void pfi_update_status(const char *, struct pf_status *);
1875 void pfi_get_ifaces(const char *, struct pfi_kif *, int *);
1876 int pfi_set_flags(const char *, int);
1877 int pfi_clear_flags(const char *, int);
1879 int pf_match_tag(struct mbuf *, struct pf_rule *, int *, int);
1880 int pf_tag_packet(struct mbuf *, struct pf_pdesc *, int);
1881 void pf_qid2qname(u_int32_t, char *);
1883 VNET_DECLARE(struct pf_status, pf_status);
1884 #define V_pf_status VNET(pf_status)
1890 VNET_DECLARE(struct pf_limit, pf_limits[PF_LIMIT_MAX]);
1891 #define V_pf_limits VNET(pf_limits)
1893 #endif /* _KERNEL */
1896 VNET_DECLARE(struct pf_anchor_global, pf_anchors);
1897 #define V_pf_anchors VNET(pf_anchors)
1898 VNET_DECLARE(struct pf_anchor, pf_main_anchor);
1899 #define V_pf_main_anchor VNET(pf_main_anchor)
1900 #define pf_main_ruleset V_pf_main_anchor.ruleset
1903 /* these ruleset functions can be linked into userland programs (pfctl) */
1904 int pf_get_ruleset_number(u_int8_t);
1905 void pf_init_ruleset(struct pf_ruleset *);
1906 int pf_anchor_setup(struct pf_rule *,
1907 const struct pf_ruleset *, const char *);
1908 int pf_anchor_copyout(const struct pf_ruleset *,
1909 const struct pf_rule *, struct pfioc_rule *);
1910 void pf_anchor_remove(struct pf_rule *);
1911 void pf_remove_if_empty_ruleset(struct pf_ruleset *);
1912 struct pf_ruleset *pf_find_ruleset(const char *);
1913 struct pf_ruleset *pf_find_or_create_ruleset(const char *);
1914 void pf_rs_initialize(void);
1916 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1917 int pf_osfp_add(struct pf_osfp_ioctl *);
1919 struct pf_osfp_enlist *
1920 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1921 const struct tcphdr *);
1922 #endif /* _KERNEL */
1923 void pf_osfp_flush(void);
1924 int pf_osfp_get(struct pf_osfp_ioctl *);
1925 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1928 void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
1930 void pf_step_into_anchor(struct pf_anchor_stackframe *, int *,
1931 struct pf_ruleset **, int, struct pf_rule **,
1932 struct pf_rule **, int *);
1933 int pf_step_out_of_anchor(struct pf_anchor_stackframe *, int *,
1934 struct pf_ruleset **, int, struct pf_rule **,
1935 struct pf_rule **, int *);
1937 int pf_map_addr(u_int8_t, struct pf_rule *,
1938 struct pf_addr *, struct pf_addr *,
1939 struct pf_addr *, struct pf_src_node **);
1940 struct pf_rule *pf_get_translation(struct pf_pdesc *, struct mbuf *,
1941 int, int, struct pfi_kif *, struct pf_src_node **,
1942 struct pf_state_key **, struct pf_state_key **,
1943 struct pf_addr *, struct pf_addr *,
1944 uint16_t, uint16_t, struct pf_anchor_stackframe *);
1946 struct pf_state_key *pf_state_key_setup(struct pf_pdesc *, struct pf_addr *,
1947 struct pf_addr *, u_int16_t, u_int16_t);
1948 struct pf_state_key *pf_state_key_clone(struct pf_state_key *);
1949 #endif /* _KERNEL */
1951 #endif /* _NET_PFVAR_H_ */