1 /* $FreeBSD: src/sys/contrib/pf/net/pfvar.h,v 1.8 2004/08/12 13:59:44 mlaier Exp $ */
2 /* $OpenBSD: pfvar.h,v 1.187 2004/03/22 04:54:18 mcbride Exp $ */
3 /* add $OpenBSD: pfvar.h,v 1.194 2004/05/11 07:34:11 dhartmei Exp $ */
4 /* $DragonFly: src/sys/net/pf/pfvar.h,v 1.1 2004/09/19 22:32:47 joerg Exp $ */
7 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
9 * Copyright (c) 2001 Daniel Hartmeier
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials provided
21 * with the distribution.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
41 #include <sys/types.h>
42 #include <sys/queue.h>
45 #include <net/radix.h>
46 #include <netinet/in.h>
49 * If we include <netipsec/keydb.h>, we need _KERNEL definition.
50 * This makes pfctl compilation difficult.
52 union sockaddr_union {
54 struct sockaddr_in sin;
55 struct sockaddr_in6 sin6;
58 #include <netinet/tcp_fsm.h>
62 #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
63 #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
65 enum { PF_INOUT, PF_IN, PF_OUT };
66 enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID };
67 enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NAT, PF_NONAT,
68 PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP };
69 enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
70 PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX };
71 enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
72 PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
73 enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
74 enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
75 PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
76 PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
78 * Note about PFTM_*: real indices into pf_rule.timeout[] come before
79 * PFTM_MAX, special cases afterwards. See pf_state_expires().
81 enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
82 PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
83 PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
84 PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
85 PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
86 PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
87 PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
88 PFTM_MAX, PFTM_PURGE, PFTM_UNTIL_PACKET };
89 enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
90 enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_MAX };
91 #define PF_POOL_IDMASK 0x0f
92 enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
93 PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
94 enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
96 #define PF_POOL_TYPEMASK 0x0f
97 #define PF_POOL_STICKYADDR 0x20
98 #define PF_WSCALE_FLAG 0x80
99 #define PF_WSCALE_MASK 0x0f
108 } pfa; /* 128-bit address */
111 #define addr8 pfa.addr8
112 #define addr16 pfa.addr16
113 #define addr32 pfa.addr32
116 #define PF_TABLE_NAME_SIZE 32
118 #define PFI_AFLAG_NETWORK 0x01
119 #define PFI_AFLAG_BROADCAST 0x02
120 #define PFI_AFLAG_PEER 0x04
121 #define PFI_AFLAG_MODEMASK 0x07
122 #define PFI_AFLAG_NOALIAS 0x08
124 struct pf_addr_wrap {
130 char ifname[IFNAMSIZ];
131 char tblname[PF_TABLE_NAME_SIZE];
134 struct pfi_dynaddr *dyn;
135 struct pfr_ktable *tbl;
139 u_int8_t type; /* PF_ADDR_* */
140 u_int8_t iflags; /* PFI_AFLAG_* */
146 struct pf_addr pfid_addr4;
147 struct pf_addr pfid_mask4;
148 struct pf_addr pfid_addr6;
149 struct pf_addr pfid_mask6;
150 struct pfr_ktable *pfid_kt;
151 struct pfi_kif *pfid_kif;
152 void *pfid_hook_cookie;
153 int pfid_net; /* optional mask, or 128 */
154 int pfid_acnt4; /* address count, IPv4 */
155 int pfid_acnt6; /* address count, IPv6 */
156 sa_family_t pfid_af; /* rule address family */
157 u_int8_t pfid_iflags; /* PFI_AFLAG_* */
161 * Address manipulation macros
164 #define splsoftnet() splnet()
166 /* XXX correct values for zinit? */
167 #define ZONE_CREATE(var, type, desc) \
168 var = zinit(desc, sizeof(type), 1, 0, 1); \
169 if (var == NULL) break
170 #define ZONE_DESTROY(a) /* XXX */
172 #define pool_get(p, f) zalloc(*(p))
173 #define pool_put(p, o) zfree(*(p), (o))
178 #define PFLOG_MODVER 1
179 #define PFSYNC_MODVER 1
181 #define PFLOG_MINVER 1
182 #define PFLOG_PREFVER PFLOG_MODVER
183 #define PFLOG_MAXVER 1
184 #define PFSYNC_MINVER 1
185 #define PFSYNC_PREFVER PFSYNC_MODVER
186 #define PFSYNC_MAXVER 1
188 /* prototyped for pf_subr.c */
190 TAILQ_ENTRY(hook_desc) hd_list;
191 void (*hd_fn)(void *);
194 TAILQ_HEAD(hook_desc_head, hook_desc);
196 void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *);
197 void hook_disestablish(struct hook_desc_head *, void *);
198 void dohooks(struct hook_desc_head *, int);
200 #define HOOK_REMOVE 0x01
201 #define HOOK_FREE 0x02
211 #define PF_INET6_ONLY
217 #define PF_INET_INET6
223 #define PF_INET_INET6
227 /* Both IPv4 and IPv6 */
230 #define PF_AEQ(a, b, c) \
231 ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
232 ((a)->addr32[3] == (b)->addr32[3] && \
233 (a)->addr32[2] == (b)->addr32[2] && \
234 (a)->addr32[1] == (b)->addr32[1] && \
235 (a)->addr32[0] == (b)->addr32[0])) \
237 #define PF_ANEQ(a, b, c) \
238 ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
239 ((a)->addr32[3] != (b)->addr32[3] || \
240 (a)->addr32[2] != (b)->addr32[2] || \
241 (a)->addr32[1] != (b)->addr32[1] || \
242 (a)->addr32[0] != (b)->addr32[0])) \
244 #define PF_AZERO(a, c) \
245 ((c == AF_INET && !(a)->addr32[0]) || \
246 (!(a)->addr32[0] && !(a)->addr32[1] && \
247 !(a)->addr32[2] && !(a)->addr32[3] )) \
249 #define PF_MATCHA(n, a, m, b, f) \
250 pf_match_addr(n, a, m, b, f)
252 #define PF_ACPY(a, b, f) \
255 #define PF_AINC(a, f) \
258 #define PF_POOLMASK(a, b, c, d, f) \
259 pf_poolmask(a, b, c, d, f)
267 #define PF_AEQ(a, b, c) \
268 ((a)->addr32[3] == (b)->addr32[3] && \
269 (a)->addr32[2] == (b)->addr32[2] && \
270 (a)->addr32[1] == (b)->addr32[1] && \
271 (a)->addr32[0] == (b)->addr32[0]) \
273 #define PF_ANEQ(a, b, c) \
274 ((a)->addr32[3] != (b)->addr32[3] || \
275 (a)->addr32[2] != (b)->addr32[2] || \
276 (a)->addr32[1] != (b)->addr32[1] || \
277 (a)->addr32[0] != (b)->addr32[0]) \
279 #define PF_AZERO(a, c) \
280 (!(a)->addr32[0] && \
285 #define PF_MATCHA(n, a, m, b, f) \
286 pf_match_addr(n, a, m, b, f)
288 #define PF_ACPY(a, b, f) \
291 #define PF_AINC(a, f) \
294 #define PF_POOLMASK(a, b, c, d, f) \
295 pf_poolmask(a, b, c, d, f)
302 #define PF_AEQ(a, b, c) \
303 ((a)->addr32[0] == (b)->addr32[0])
305 #define PF_ANEQ(a, b, c) \
306 ((a)->addr32[0] != (b)->addr32[0])
308 #define PF_AZERO(a, c) \
311 #define PF_MATCHA(n, a, m, b, f) \
312 pf_match_addr(n, a, m, b, f)
314 #define PF_ACPY(a, b, f) \
315 (a)->v4.s_addr = (b)->v4.s_addr
317 #define PF_AINC(a, f) \
319 (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
322 #define PF_POOLMASK(a, b, c, d, f) \
324 (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
325 (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \
328 #endif /* PF_INET_ONLY */
329 #endif /* PF_INET6_ONLY */
330 #endif /* PF_INET_INET6 */
332 #define PF_MISMATCHAW(aw, x, af, not) \
334 (((aw)->type == PF_ADDR_NOROUTE && \
335 pf_routable((x), (af))) || \
336 ((aw)->type == PF_ADDR_TABLE && \
337 !pfr_match_addr((aw)->p.tbl, (x), (af))) || \
338 ((aw)->type == PF_ADDR_DYNIFTL && \
339 !pfi_match_addr((aw)->p.dyn, (x), (af))) || \
340 ((aw)->type == PF_ADDR_ADDRMASK && \
341 !PF_AZERO(&(aw)->v.a.mask, (af)) && \
342 !PF_MATCHA(0, &(aw)->v.a.addr, \
343 &(aw)->v.a.mask, (x), (af)))) != \
357 struct pf_rule_addr {
358 struct pf_addr_wrap addr;
365 struct pf_addr_wrap addr;
366 TAILQ_ENTRY(pf_pooladdr) entries;
367 char ifname[IFNAMSIZ];
371 TAILQ_HEAD(pf_palist, pf_pooladdr);
373 struct pf_poolhashkey {
378 } pfk; /* 128-bit hash key */
379 #define key8 pfk.key8
380 #define key16 pfk.key16
381 #define key32 pfk.key32
385 struct pf_palist list;
386 struct pf_pooladdr *cur;
387 struct pf_poolhashkey key;
388 struct pf_addr counter;
390 u_int16_t proxy_port[2];
396 /* A packed Operating System description for fingerprinting */
397 typedef u_int32_t pf_osfp_t;
398 #define PF_OSFP_ANY ((pf_osfp_t)0)
399 #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
400 #define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
402 struct pf_osfp_entry {
403 SLIST_ENTRY(pf_osfp_entry) fp_entry;
406 #define PF_OSFP_EXPANDED 0x001 /* expanded entry */
407 #define PF_OSFP_GENERIC 0x002 /* generic signature */
408 #define PF_OSFP_NODETAIL 0x004 /* no p0f details */
409 #define PF_OSFP_LEN 32
410 char fp_class_nm[PF_OSFP_LEN];
411 char fp_version_nm[PF_OSFP_LEN];
412 char fp_subtype_nm[PF_OSFP_LEN];
414 #define PF_OSFP_ENTRY_EQ(a, b) \
415 ((a)->fp_os == (b)->fp_os && \
416 memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
417 memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
418 memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
420 /* handle pf_osfp_t packing */
421 #define _FP_RESERVED_BIT 1 /* For the special negative #defines */
422 #define _FP_UNUSED_BITS 1
423 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
424 #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
425 #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
426 #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
427 (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
428 ((1 << _FP_CLASS_BITS) - 1); \
429 (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
430 ((1 << _FP_VERSION_BITS) - 1);\
431 (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
433 #define PF_OSFP_PACK(osfp, class, version, subtype) do { \
434 (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
435 + _FP_SUBTYPE_BITS); \
436 (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
438 (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
441 /* the fingerprint of an OSes TCP SYN packet */
442 typedef u_int64_t pf_tcpopts_t;
443 struct pf_os_fingerprint {
444 SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
445 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
446 u_int16_t fp_wsize; /* TCP window size */
447 u_int16_t fp_psize; /* ip->ip_len */
448 u_int16_t fp_mss; /* TCP MSS */
450 #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
451 #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
452 #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
453 #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
454 #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
455 #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
456 #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
457 #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
458 #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
459 #define PF_OSFP_MSS 0x0200 /* TCP MSS */
460 #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
461 #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
462 #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
463 #define PF_OSFP_TS0 0x2000 /* Zero timestamp */
464 u_int8_t fp_optcnt; /* TCP option count */
465 u_int8_t fp_wscale; /* TCP window scaling */
466 u_int8_t fp_ttl; /* IPv4 TTL */
467 #define PF_OSFP_MAXTTL_OFFSET 40
468 /* TCP options packing */
469 #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
470 #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
471 #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
472 #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
473 #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
474 #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
475 #define PF_OSFP_MAX_OPTS \
476 (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
477 / PF_OSFP_TCPOPT_BITS
479 SLIST_ENTRY(pf_os_fingerprint) fp_next;
482 struct pf_osfp_ioctl {
483 struct pf_osfp_entry fp_os;
484 pf_tcpopts_t fp_tcpopts; /* packed TCP options */
485 u_int16_t fp_wsize; /* TCP window size */
486 u_int16_t fp_psize; /* ip->ip_len */
487 u_int16_t fp_mss; /* TCP MSS */
489 u_int8_t fp_optcnt; /* TCP option count */
490 u_int8_t fp_wscale; /* TCP window scaling */
491 u_int8_t fp_ttl; /* IPv4 TTL */
493 int fp_getnum; /* DIOCOSFPGET number */
503 struct pf_rule_addr src;
504 struct pf_rule_addr dst;
505 #define PF_SKIP_IFP 0
506 #define PF_SKIP_DIR 1
508 #define PF_SKIP_PROTO 3
509 #define PF_SKIP_SRC_ADDR 4
510 #define PF_SKIP_SRC_PORT 5
511 #define PF_SKIP_DST_ADDR 6
512 #define PF_SKIP_DST_PORT 7
513 #define PF_SKIP_COUNT 8
514 union pf_rule_ptr skip[PF_SKIP_COUNT];
515 #define PF_RULE_LABEL_SIZE 64
516 char label[PF_RULE_LABEL_SIZE];
517 #define PF_QNAME_SIZE 16
518 char ifname[IFNAMSIZ];
519 char qname[PF_QNAME_SIZE];
520 char pqname[PF_QNAME_SIZE];
521 #define PF_ANCHOR_NAME_SIZE 16
522 char anchorname[PF_ANCHOR_NAME_SIZE];
523 #define PF_TAG_NAME_SIZE 16
524 char tagname[PF_TAG_NAME_SIZE];
525 char match_tagname[PF_TAG_NAME_SIZE];
527 TAILQ_ENTRY(pf_rule) entries;
528 struct pf_pool rpool;
530 u_int64_t evaluations;
535 struct pf_anchor *anchor;
537 pf_osfp_t os_fingerprint;
539 u_int32_t timeout[PFTM_MAX];
541 u_int32_t max_states;
543 u_int32_t max_src_nodes;
544 u_int32_t max_src_states;
550 u_int16_t return_icmp;
551 u_int16_t return_icmp6;
556 struct pf_rule_uid uid;
557 struct pf_rule_gid gid;
565 u_int8_t match_tag_not;
568 #define PF_STATE_NORMAL 0x1
569 #define PF_STATE_MODULATE 0x2
570 #define PF_STATE_SYNPROXY 0x3
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 */
596 #define PFRULE_NODF 0x0100
597 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
598 #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
599 #define PFRULE_RANDOMID 0x0800
600 #define PFRULE_REASSEMBLE_TCP 0x1000
602 /* rule flags again */
603 #define PFRULE_IFBOUND 0x00010000 /* if-bound */
604 #define PFRULE_GRBOUND 0x00020000 /* group-bound */
606 #define PFSTATE_HIWAT 10000 /* default state table size */
609 RB_ENTRY(pf_src_node) entry;
611 struct pf_addr raddr;
612 union pf_rule_ptr rule;
623 #define PFSNODE_HIWAT 10000 /* default source node table size */
625 struct pf_state_scrub {
626 u_int16_t pfss_flags;
627 #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
628 u_int8_t pfss_ttl; /* stashed TTL */
630 u_int32_t pfss_ts_mod; /* timestamp modulation */
633 struct pf_state_host {
639 struct pf_state_peer {
640 u_int32_t seqlo; /* Max sequence number sent */
641 u_int32_t seqhi; /* Max the other end ACKd + win */
642 u_int32_t seqdiff; /* Sequence number modulator */
643 u_int16_t max_win; /* largest window (pre scaling) */
644 u_int8_t state; /* active state level */
645 u_int8_t wscale; /* window scaling factor */
646 u_int16_t mss; /* Maximum segment size option */
647 struct pf_state_scrub *scrub; /* state is scrubbed */
650 TAILQ_HEAD(pf_state_queue, pf_state);
656 RB_ENTRY(pf_state) entry_lan_ext;
657 RB_ENTRY(pf_state) entry_ext_gwy;
658 RB_ENTRY(pf_state) entry_id;
659 TAILQ_ENTRY(pf_state) entry_updates;
662 char ifname[IFNAMSIZ];
664 struct pf_state_host lan;
665 struct pf_state_host gwy;
666 struct pf_state_host ext;
667 struct pf_state_peer src;
668 struct pf_state_peer dst;
669 union pf_rule_ptr rule;
670 union pf_rule_ptr anchor;
671 union pf_rule_ptr nat_rule;
672 struct pf_addr rt_addr;
673 struct pfi_kif *rt_kif;
674 struct pf_src_node *src_node;
675 struct pf_src_node *nat_src_node;
678 u_int32_t pfsync_time;
679 u_int32_t packets[2];
689 #define PFSTATE_NOSYNC 0x01
690 #define PFSTATE_FROMSYNC 0x02
694 TAILQ_HEAD(pf_rulequeue, pf_rule);
699 TAILQ_ENTRY(pf_ruleset) entries;
700 #define PF_RULESET_NAME_SIZE 16
701 char name[PF_RULESET_NAME_SIZE];
703 struct pf_rulequeue queues[2];
705 struct pf_rulequeue *ptr;
709 } rules[PF_RULESET_MAX];
710 struct pf_anchor *anchor;
716 TAILQ_HEAD(pf_rulesetqueue, pf_ruleset);
719 TAILQ_ENTRY(pf_anchor) entries;
720 char name[PF_ANCHOR_NAME_SIZE];
721 struct pf_rulesetqueue rulesets;
725 TAILQ_HEAD(pf_anchorqueue, pf_anchor);
727 #define PF_RESERVED_ANCHOR "_pf"
728 #define PF_INTERFACE_RULESET "_if"
730 #define PFR_TFLAG_PERSIST 0x00000001
731 #define PFR_TFLAG_CONST 0x00000002
732 #define PFR_TFLAG_ACTIVE 0x00000004
733 #define PFR_TFLAG_INACTIVE 0x00000008
734 #define PFR_TFLAG_REFERENCED 0x00000010
735 #define PFR_TFLAG_REFDANCHOR 0x00000020
736 #define PFR_TFLAG_USRMASK 0x00000003
737 #define PFR_TFLAG_SETMASK 0x0000003C
738 #define PFR_TFLAG_ALLMASK 0x0000003F
741 char pfrt_anchor[PF_ANCHOR_NAME_SIZE];
742 char pfrt_ruleset[PF_RULESET_NAME_SIZE];
743 char pfrt_name[PF_TABLE_NAME_SIZE];
744 u_int32_t pfrt_flags;
748 enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
749 PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
750 PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
754 struct in_addr _pfra_ip4addr;
755 struct in6_addr _pfra_ip6addr;
762 #define pfra_ip4addr pfra_u._pfra_ip4addr
763 #define pfra_ip6addr pfra_u._pfra_ip6addr
765 enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
766 enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
767 #define PFR_OP_XPASS PFR_OP_ADDR_MAX
770 struct pfr_addr pfras_a;
771 u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
772 u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
776 enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
779 struct pfr_table pfrts_t;
780 u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
781 u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
782 u_int64_t pfrts_match;
783 u_int64_t pfrts_nomatch;
786 int pfrts_refcnt[PFR_REFCNT_MAX];
788 #define pfrts_name pfrts_t.pfrt_name
789 #define pfrts_flags pfrts_t.pfrt_flags
791 SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
793 struct radix_node pfrke_node[2];
794 union sockaddr_union pfrke_sa;
795 u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
796 u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
797 SLIST_ENTRY(pfr_kentry) pfrke_workq;
805 SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
806 RB_HEAD(pfr_ktablehead, pfr_ktable);
808 struct pfr_tstats pfrkt_ts;
809 RB_ENTRY(pfr_ktable) pfrkt_tree;
810 SLIST_ENTRY(pfr_ktable) pfrkt_workq;
811 struct radix_node_head *pfrkt_ip4;
812 struct radix_node_head *pfrkt_ip6;
813 struct pfr_ktable *pfrkt_shadow;
814 struct pfr_ktable *pfrkt_root;
815 struct pf_ruleset *pfrkt_rs;
819 #define pfrkt_t pfrkt_ts.pfrts_t
820 #define pfrkt_name pfrkt_t.pfrt_name
821 #define pfrkt_anchor pfrkt_t.pfrt_anchor
822 #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
823 #define pfrkt_flags pfrkt_t.pfrt_flags
824 #define pfrkt_cnt pfrkt_ts.pfrts_cnt
825 #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
826 #define pfrkt_packets pfrkt_ts.pfrts_packets
827 #define pfrkt_bytes pfrkt_ts.pfrts_bytes
828 #define pfrkt_match pfrkt_ts.pfrts_match
829 #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
830 #define pfrkt_tzero pfrkt_ts.pfrts_tzero
832 RB_HEAD(pf_state_tree_lan_ext, pf_state);
833 RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state,
834 u.s.entry_lan_ext, pf_state_compare_lan_ext);
836 RB_HEAD(pf_state_tree_ext_gwy, pf_state);
837 RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state,
838 u.s.entry_ext_gwy, pf_state_compare_ext_gwy);
841 char pfif_name[IFNAMSIZ];
842 u_int64_t pfif_packets[2][2][2];
843 u_int64_t pfif_bytes[2][2][2];
844 u_int64_t pfif_addcnt;
845 u_int64_t pfif_delcnt;
852 TAILQ_HEAD(pfi_grouphead, pfi_kif);
853 TAILQ_HEAD(pfi_statehead, pfi_kif);
854 RB_HEAD(pfi_ifhead, pfi_kif);
856 struct pfi_if pfik_if;
857 RB_ENTRY(pfi_kif) pfik_tree;
858 struct pf_state_tree_lan_ext pfik_lan_ext;
859 struct pf_state_tree_ext_gwy pfik_ext_gwy;
860 struct pfi_grouphead pfik_grouphead;
861 TAILQ_ENTRY(pfi_kif) pfik_instances;
862 TAILQ_ENTRY(pfi_kif) pfik_w_states;
863 struct hook_desc_head *pfik_ah_head;
864 void *pfik_ah_cookie;
865 struct pfi_kif *pfik_parent;
866 struct ifnet *pfik_ifp;
870 #define pfik_name pfik_if.pfif_name
871 #define pfik_packets pfik_if.pfif_packets
872 #define pfik_bytes pfik_if.pfif_bytes
873 #define pfik_tzero pfik_if.pfif_tzero
874 #define pfik_flags pfik_if.pfif_flags
875 #define pfik_addcnt pfik_if.pfif_addcnt
876 #define pfik_delcnt pfik_if.pfif_delcnt
877 #define pfik_states pfik_if.pfif_states
878 #define pfik_rules pfik_if.pfif_rules
880 #define PFI_IFLAG_GROUP 0x0001 /* group of interfaces */
881 #define PFI_IFLAG_INSTANCE 0x0002 /* single instance */
882 #define PFI_IFLAG_CLONABLE 0x0010 /* clonable group */
883 #define PFI_IFLAG_DYNAMIC 0x0020 /* dynamic group */
884 #define PFI_IFLAG_ATTACHED 0x0040 /* interface attached */
885 #define PFI_IFLAG_PLACEHOLDER 0x8000 /* placeholder group/interface */
888 u_int64_t tot_len; /* Make Mickey money */
894 struct icmp6_hdr *icmp6;
898 struct pf_addr baddr; /* address before translation */
899 struct pf_addr naddr; /* address after translation */
900 struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
904 u_int32_t p_len; /* total length of payload */
905 u_int16_t flags; /* Let SCRUB trigger behavior in
906 * state code. Easier than tags */
907 #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
913 /* flags for RDR options */
914 #define PF_DPORT_RANGE 0x01 /* Dest port uses range */
915 #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
917 /* Reasons code for passing/dropping a packet */
918 #define PFRES_MATCH 0 /* Explicit match of a rule */
919 #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
920 #define PFRES_FRAG 2 /* Dropping following fragment */
921 #define PFRES_SHORT 3 /* Dropping short packet */
922 #define PFRES_NORM 4 /* Dropping by normalizer */
923 #define PFRES_MEMORY 5 /* Dropped due to lacking mem */
924 #define PFRES_MAX 6 /* total+1 */
926 #define PFRES_NAMES { \
936 /* UDP state enumeration */
937 #define PFUDPS_NO_TRAFFIC 0
938 #define PFUDPS_SINGLE 1
939 #define PFUDPS_MULTIPLE 2
941 #define PFUDPS_NSTATES 3 /* number of state levels */
943 #define PFUDPS_NAMES { \
950 /* Other protocol state enumeration */
951 #define PFOTHERS_NO_TRAFFIC 0
952 #define PFOTHERS_SINGLE 1
953 #define PFOTHERS_MULTIPLE 2
955 #define PFOTHERS_NSTATES 3 /* number of state levels */
957 #define PFOTHERS_NAMES { \
964 #define FCNT_STATE_SEARCH 0
965 #define FCNT_STATE_INSERT 1
966 #define FCNT_STATE_REMOVALS 2
969 #define SCNT_SRC_NODE_SEARCH 0
970 #define SCNT_SRC_NODE_INSERT 1
971 #define SCNT_SRC_NODE_REMOVALS 2
974 #define ACTION_SET(a, x) \
980 #define REASON_SET(a, x) \
985 pf_status.counters[x]++; \
989 u_int64_t counters[PFRES_MAX];
990 u_int64_t fcounters[FCNT_MAX];
991 u_int64_t scounters[SCNT_MAX];
992 u_int64_t pcounters[2][2][3];
993 u_int64_t bcounters[2][2];
1001 char ifname[IFNAMSIZ];
1021 /* real-time service curve */
1022 u_int rtsc_m1; /* slope of the 1st segment in bps */
1023 u_int rtsc_d; /* the x-projection of m1 in msec */
1024 u_int rtsc_m2; /* slope of the 2nd segment in bps */
1025 /* link-sharing service curve */
1029 /* upper-limit service curve */
1037 char ifname[IFNAMSIZ];
1039 void *altq_disc; /* discipline-specific state */
1040 TAILQ_ENTRY(pf_altq) entries;
1042 /* scheduler spec */
1043 u_int8_t scheduler; /* scheduler type */
1044 u_int16_t tbrsize; /* tokenbucket regulator size */
1045 u_int32_t ifbandwidth; /* interface bandwidth */
1048 char qname[PF_QNAME_SIZE]; /* queue name */
1049 char parent[PF_QNAME_SIZE]; /* parent name */
1050 u_int32_t parent_qid; /* parent queue id */
1051 u_int32_t bandwidth; /* queue bandwidth */
1052 u_int8_t priority; /* priority */
1053 u_int16_t qlimit; /* queue size limit */
1054 u_int16_t flags; /* misc flags */
1056 struct cbq_opts cbq_opts;
1057 struct priq_opts priq_opts;
1058 struct hfsc_opts hfsc_opts;
1061 u_int32_t qid; /* return value */
1065 TAILQ_ENTRY(pf_tagname) entries;
1066 char name[PF_TAG_NAME_SIZE];
1071 #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
1072 #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
1073 #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
1074 #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
1077 * ioctl parameter structures
1080 struct pfioc_pooladdr {
1088 char anchor[PF_ANCHOR_NAME_SIZE];
1089 char ruleset[PF_RULESET_NAME_SIZE];
1090 struct pf_pooladdr addr;
1096 u_int32_t pool_ticket;
1098 char anchor[PF_ANCHOR_NAME_SIZE];
1099 char ruleset[PF_RULESET_NAME_SIZE];
1100 struct pf_rule rule;
1103 struct pfioc_natlook {
1104 struct pf_addr saddr;
1105 struct pf_addr daddr;
1106 struct pf_addr rsaddr;
1107 struct pf_addr rdaddr;
1117 struct pfioc_state {
1119 struct pf_state state;
1122 struct pfioc_state_kill {
1123 /* XXX returns the number of states killed in psk_af */
1126 struct pf_rule_addr psk_src;
1127 struct pf_rule_addr psk_dst;
1128 char psk_ifname[IFNAMSIZ];
1131 struct pfioc_states {
1135 struct pf_state *psu_states;
1137 #define ps_buf ps_u.psu_buf
1138 #define ps_states ps_u.psu_states
1141 struct pfioc_src_nodes {
1145 struct pf_src_node *psu_src_nodes;
1147 #define psn_buf psn_u.psu_buf
1148 #define psn_src_nodes psn_u.psu_src_nodes
1152 char ifname[IFNAMSIZ];
1160 struct pfioc_limit {
1169 struct pf_altq altq;
1172 struct pfioc_qstats {
1180 struct pfioc_anchor {
1182 char name[PF_ANCHOR_NAME_SIZE];
1185 struct pfioc_ruleset {
1187 char anchor[PF_ANCHOR_NAME_SIZE];
1188 char name[PF_RULESET_NAME_SIZE];
1191 #define PF_RULESET_ALTQ (PF_RULESET_MAX)
1192 #define PF_RULESET_TABLE (PF_RULESET_MAX+1)
1193 struct pfioc_trans {
1194 int size; /* number of elements */
1195 int esize; /* size of each element in bytes */
1196 struct pfioc_trans_e {
1198 char anchor[PF_ANCHOR_NAME_SIZE];
1199 char ruleset[PF_RULESET_NAME_SIZE];
1204 #define PFR_FLAG_ATOMIC 0x00000001
1205 #define PFR_FLAG_DUMMY 0x00000002
1206 #define PFR_FLAG_FEEDBACK 0x00000004
1207 #define PFR_FLAG_CLSTATS 0x00000008
1208 #define PFR_FLAG_ADDRSTOO 0x00000010
1209 #define PFR_FLAG_REPLACE 0x00000020
1210 #define PFR_FLAG_ALLRSETS 0x00000040
1211 #define PFR_FLAG_ALLMASK 0x0000007F
1213 #define PFR_FLAG_USERIOCTL 0x10000000
1216 struct pfioc_table {
1217 struct pfr_table pfrio_table;
1226 u_int32_t pfrio_ticket;
1228 #define pfrio_exists pfrio_nadd
1229 #define pfrio_nzero pfrio_nadd
1230 #define pfrio_nmatch pfrio_nadd
1231 #define pfrio_naddr pfrio_size2
1232 #define pfrio_setflag pfrio_size2
1233 #define pfrio_clrflag pfrio_nadd
1236 #define PFI_FLAG_GROUP 0x0001 /* gets groups of interfaces */
1237 #define PFI_FLAG_INSTANCE 0x0002 /* gets single interfaces */
1238 #define PFI_FLAG_ALLMASK 0x0003
1240 struct pfioc_iface {
1241 char pfiio_name[IFNAMSIZ];
1254 #define DIOCSTART _IO ('D', 1)
1255 #define DIOCSTOP _IO ('D', 2)
1256 #define DIOCBEGINRULES _IOWR('D', 3, struct pfioc_rule)
1257 #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
1258 #define DIOCCOMMITRULES _IOWR('D', 5, struct pfioc_rule)
1259 #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
1260 #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
1261 /* XXX cut 8 - 17 */
1262 #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
1263 #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
1264 #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
1265 #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
1266 #define DIOCCLRSTATUS _IO ('D', 22)
1267 #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
1268 #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
1269 #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
1270 #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
1271 /* XXX cut 26 - 28 */
1272 #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
1273 #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
1274 #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
1275 #define DIOCCLRRULECTRS _IO ('D', 38)
1276 #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
1277 #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
1278 #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
1279 #define DIOCSTARTALTQ _IO ('D', 42)
1280 #define DIOCSTOPALTQ _IO ('D', 43)
1281 #define DIOCBEGINALTQS _IOWR('D', 44, u_int32_t)
1282 #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
1283 #define DIOCCOMMITALTQS _IOWR('D', 46, u_int32_t)
1284 #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
1285 #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
1286 #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
1287 #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
1288 #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
1289 #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
1290 #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
1291 #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
1292 #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
1293 #define DIOCGETANCHORS _IOWR('D', 56, struct pfioc_anchor)
1294 #define DIOCGETANCHOR _IOWR('D', 57, struct pfioc_anchor)
1295 #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
1296 #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
1297 #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
1298 #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
1299 #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
1300 #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
1301 #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
1302 #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
1303 #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
1304 #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
1305 #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
1306 #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
1307 #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
1308 #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
1309 #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
1310 #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
1311 #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
1312 #define DIOCRINABEGIN _IOWR('D', 75, struct pfioc_table)
1313 #define DIOCRINACOMMIT _IOWR('D', 76, struct pfioc_table)
1314 #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
1315 #define DIOCOSFPFLUSH _IO('D', 78)
1316 #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
1317 #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
1318 #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
1319 #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
1320 #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
1321 #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
1322 #define DIOCCLRSRCNODES _IO('D', 85)
1323 #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
1324 #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
1325 #define DIOCICLRISTATS _IOWR('D', 88, struct pfioc_iface)
1327 char ifname[IFNAMSIZ];
1330 #define DIOCGIFSPEED _IOWR('D', 89, struct pf_ifspeed)
1333 RB_HEAD(pf_src_tree, pf_src_node);
1334 RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare);
1335 extern struct pf_src_tree tree_src_tracking;
1337 RB_HEAD(pf_state_tree_id, pf_state);
1338 RB_PROTOTYPE(pf_state_tree_id, pf_state,
1339 entry_id, pf_state_compare_id);
1340 extern struct pf_state_tree_id tree_id;
1341 extern struct pf_state_queue state_updates;
1343 extern struct pf_anchorqueue pf_anchors;
1344 extern struct pf_ruleset pf_main_ruleset;
1345 TAILQ_HEAD(pf_poolqueue, pf_pool);
1346 extern struct pf_poolqueue pf_pools[2];
1347 TAILQ_HEAD(pf_altqqueue, pf_altq);
1348 extern struct pf_altqqueue pf_altqs[2];
1349 extern struct pf_palist pf_pabuf;
1350 extern struct pfi_kif **pfi_index2kif;
1352 extern u_int32_t ticket_altqs_active;
1353 extern u_int32_t ticket_altqs_inactive;
1354 extern int altqs_inactive_open;
1355 extern u_int32_t ticket_pabuf;
1356 extern struct pf_altqqueue *pf_altqs_active;
1357 extern struct pf_altqqueue *pf_altqs_inactive;
1358 extern struct pf_poolqueue *pf_pools_active;
1359 extern struct pf_poolqueue *pf_pools_inactive;
1360 extern int pf_tbladdr_setup(struct pf_ruleset *,
1361 struct pf_addr_wrap *);
1362 extern void pf_tbladdr_remove(struct pf_addr_wrap *);
1363 extern void pf_tbladdr_copyout(struct pf_addr_wrap *);
1364 extern void pf_calc_skip_steps(struct pf_rulequeue *);
1365 extern void pf_update_anchor_rules(void);
1366 extern vm_zone_t pf_src_tree_pl, pf_rule_pl;
1367 extern vm_zone_t pf_state_pl, pf_altq_pl, pf_pooladdr_pl;
1368 extern vm_zone_t pfr_ktable_pl, pfr_kentry_pl;
1369 extern vm_zone_t pf_cache_pl, pf_cent_pl;
1370 extern vm_zone_t pf_state_scrub_pl;
1371 extern vm_zone_t pfi_addr_pl;
1372 extern void pf_purge_timeout(void *);
1373 extern void pf_purge_expired_src_nodes(void);
1374 extern void pf_purge_expired_states(void);
1375 extern int pf_insert_state(struct pfi_kif *,
1377 extern int pf_insert_src_node(struct pf_src_node **,
1378 struct pf_rule *, struct pf_addr *,
1380 void pf_src_tree_remove_state(struct pf_state *);
1381 extern struct pf_state *pf_find_state_byid(struct pf_state *);
1382 extern struct pf_state *pf_find_state_all(struct pf_state *key,
1383 u_int8_t tree, int *more);
1384 extern struct pf_anchor *pf_find_anchor(const char *);
1385 extern struct pf_ruleset *pf_find_ruleset(char *, char *);
1386 extern struct pf_ruleset *pf_find_or_create_ruleset(
1387 char[PF_ANCHOR_NAME_SIZE],
1388 char[PF_RULESET_NAME_SIZE]);
1389 extern void pf_remove_if_empty_ruleset(
1390 struct pf_ruleset *);
1392 extern struct ifnet *sync_ifp;
1393 extern struct pf_rule pf_default_rule;
1394 extern void pf_addrcpy(struct pf_addr *, struct pf_addr *,
1396 void pf_rm_rule(struct pf_rulequeue *,
1400 int pf_test(int, struct ifnet *, struct mbuf **);
1404 int pf_test6(int, struct ifnet *, struct mbuf **);
1405 void pf_poolmask(struct pf_addr *, struct pf_addr*,
1406 struct pf_addr *, struct pf_addr *, u_int8_t);
1407 void pf_addr_inc(struct pf_addr *, sa_family_t);
1410 void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *,
1412 void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
1413 int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t,
1414 u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *);
1415 int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *,
1416 struct pf_addr *, sa_family_t);
1417 int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
1418 int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
1419 int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
1420 int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
1422 void pf_normalize_init(void);
1423 int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *);
1424 int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *);
1425 int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *,
1427 void pf_normalize_tcp_cleanup(struct pf_state *);
1428 int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *,
1429 struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *);
1430 int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *,
1431 u_short *, struct tcphdr *, struct pf_state_peer *,
1432 struct pf_state_peer *, int *);
1434 pf_state_expires(const struct pf_state *);
1435 void pf_purge_expired_fragments(void);
1436 int pf_routable(struct pf_addr *addr, sa_family_t af);
1437 void pfr_initialize(void);
1438 int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t);
1439 void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t,
1440 u_int64_t, int, int, int);
1441 int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *,
1442 struct pf_addr **, struct pf_addr **, sa_family_t);
1443 void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *);
1445 pfr_attach_table(struct pf_ruleset *, char *);
1446 void pfr_detach_table(struct pfr_ktable *);
1447 int pfr_clr_tables(struct pfr_table *, int *, int);
1448 int pfr_add_tables(struct pfr_table *, int, int *, int);
1449 int pfr_del_tables(struct pfr_table *, int, int *, int);
1450 int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int);
1451 int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int);
1452 int pfr_clr_tstats(struct pfr_table *, int, int *, int);
1453 int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int);
1454 int pfr_clr_addrs(struct pfr_table *, int *, int);
1455 int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1457 int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1459 int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1460 int *, int *, int *, int);
1461 int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int);
1462 int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int);
1463 int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *,
1465 int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *,
1467 int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int);
1468 int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int);
1469 int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int);
1470 int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *,
1471 int *, u_int32_t, int);
1473 void pfi_initialize(void);
1474 void pfi_cleanup(void);
1475 void pfi_attach_clone(struct if_clone *);
1476 void pfi_attach_ifnet(struct ifnet *);
1477 void pfi_detach_ifnet(struct ifnet *);
1478 struct pfi_kif *pfi_lookup_create(const char *);
1479 struct pfi_kif *pfi_lookup_if(const char *);
1480 int pfi_maybe_destroy(struct pfi_kif *);
1481 struct pfi_kif *pfi_attach_rule(const char *);
1482 void pfi_detach_rule(struct pfi_kif *);
1483 void pfi_attach_state(struct pfi_kif *);
1484 void pfi_detach_state(struct pfi_kif *);
1485 int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
1486 void pfi_dynaddr_copyout(struct pf_addr_wrap *);
1487 void pfi_dynaddr_remove(struct pf_addr_wrap *);
1488 void pfi_fill_oldstatus(struct pf_status *);
1489 int pfi_clr_istats(const char *, int *, int);
1490 int pfi_get_ifaces(const char *, struct pfi_if *, int *, int);
1491 int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
1494 extern struct pfi_statehead pfi_statehead;
1496 u_int16_t pf_tagname2tag(char *);
1497 void pf_tag2tagname(u_int16_t, char *);
1498 void pf_tag_unref(u_int16_t);
1499 void pf_tag_packet(struct mbuf *, int);
1500 u_int32_t pf_qname2qid(char *);
1501 void pf_qid2qname(u_int32_t, char *);
1502 void pf_qid_unref(u_int32_t);
1504 extern struct pf_status pf_status;
1505 extern vm_zone_t pf_frent_pl, pf_frag_pl;
1507 struct pf_pool_limit {
1511 extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
1514 LIST_ENTRY(pf_frent) fr_next;
1520 LIST_ENTRY(pf_frcache) fr_next;
1525 struct pf_fragment {
1526 RB_ENTRY(pf_fragment) fr_entry;
1527 TAILQ_ENTRY(pf_fragment) frag_next;
1528 struct in_addr fr_src;
1529 struct in_addr fr_dst;
1530 u_int8_t fr_p; /* protocol of this fragment */
1531 u_int8_t fr_flags; /* status flags */
1532 u_int16_t fr_id; /* fragment id for reassemble */
1533 u_int16_t fr_max; /* fragment data max */
1534 u_int32_t fr_timeout;
1535 #define fr_queue fr_u.fru_queue
1536 #define fr_cache fr_u.fru_cache
1538 LIST_HEAD(pf_fragq, pf_frent) fru_queue; /* buffering */
1539 LIST_HEAD(pf_cacheq, pf_frcache) fru_cache; /* non-buf */
1542 #endif /* _KERNEL */
1544 /* The fingerprint functions can be linked into userland programs (tcpdump) */
1545 int pf_osfp_add(struct pf_osfp_ioctl *);
1547 struct pf_osfp_enlist *
1548 pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int,
1549 const struct tcphdr *);
1550 #endif /* _KERNEL */
1551 struct pf_osfp_enlist *
1552 pf_osfp_fingerprint_hdr(const struct ip *, const struct tcphdr *);
1553 void pf_osfp_flush(void);
1554 int pf_osfp_get(struct pf_osfp_ioctl *);
1555 int pf_osfp_initialize(void);
1556 void pf_osfp_cleanup(void);
1557 int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
1558 struct pf_os_fingerprint *
1559 pf_osfp_validate(void);
1562 #endif /* _NET_PFVAR_H_ */